diff --git a/Cardiopulmonarybypasssystems/MainWindow.xaml b/Cardiopulmonarybypasssystems/MainWindow.xaml
index 7cf6922..9e7c13b 100644
--- a/Cardiopulmonarybypasssystems/MainWindow.xaml
+++ b/Cardiopulmonarybypasssystems/MainWindow.xaml
@@ -14,6 +14,85 @@
     <Window.Resources>
         <converters:TrendPointCollectionConverter x:Key="TrendPointCollectionConverter" />
         <converters:TrendLastPointCoordinateConverter x:Key="TrendLastPointCoordinateConverter" />
+        <DataTemplate x:Key="ProjectRs485PumpCardTemplate" DataType="{x:Type models:PumpControlChannel}">
+            <Grid Margin="0,0,10,6"
+                  VerticalAlignment="Center">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="112" />
+                    <ColumnDefinition Width="6" />
+                    <ColumnDefinition Width="82" />
+                    <ColumnDefinition Width="44" />
+                    <ColumnDefinition Width="6" />
+                    <ColumnDefinition Width="54" />
+                    <ColumnDefinition Width="6" />
+                    <ColumnDefinition Width="54" />
+                    <ColumnDefinition Width="8" />
+                    <ColumnDefinition Width="52" />
+                    <ColumnDefinition Width="6" />
+                    <ColumnDefinition Width="96" />
+                </Grid.ColumnDefinitions>
+
+                <TextBlock Grid.Column="0"
+                           VerticalAlignment="Center"
+                           FontSize="13"
+                           FontWeight="Bold"
+                           Foreground="{StaticResource HeaderBrush}"
+                           Text="{Binding Name}"
+                           TextTrimming="CharacterEllipsis"
+                           ToolTip="{Binding Name}" />
+                <TextBox Grid.Column="2"
+                         Height="32"
+                         VerticalContentAlignment="Center"
+                         FontSize="14"
+                         FontWeight="SemiBold"
+                         Text="{Binding PendingSetpointText, UpdateSourceTrigger=PropertyChanged}"
+                         IsReadOnly="True"
+                         Cursor="Hand"
+                         ToolTip="目标流量 L/min"
+                         PreviewMouseLeftButtonDown="PumpSetpointTextBox_OnPreviewMouseLeftButtonDown"
+                         GotKeyboardFocus="PumpSetpointTextBox_OnGotKeyboardFocus" />
+                <TextBlock Grid.Column="3"
+                           Margin="4,0,0,0"
+                           VerticalAlignment="Center"
+                           Style="{StaticResource CaptionStyle}"
+                           Text="L/min" />
+                <Button Grid.Column="5"
+                        Height="32"
+                        MinWidth="0"
+                        Padding="6,2"
+                        Command="{Binding DataContext.StartSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                        CommandParameter="{Binding}"
+                        Content="启动"
+                        IsEnabled="{Binding CanStartRs485Action}"
+                        Background="#FF2B8F6A"
+                        ToolTipService.ShowOnDisabled="True"
+                        ToolTip="{Binding StartActionHint}" />
+                <Button Grid.Column="7"
+                        Height="32"
+                        MinWidth="0"
+                        Padding="6,2"
+                        Command="{Binding DataContext.StopSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                        CommandParameter="{Binding}"
+                        Content="停止"
+                        IsEnabled="{Binding CanStopRs485Action}"
+                        Background="#FFB85C38"
+                        ToolTipService.ShowOnDisabled="True"
+                        ToolTip="{Binding StopActionHint}" />
+                <CheckBox Grid.Column="9"
+                          VerticalAlignment="Center"
+                          Content="稳流"
+                          IsChecked="{Binding IsFlowStabilizationEnabled, UpdateSourceTrigger=PropertyChanged}"
+                          IsEnabled="{Binding CanUseFlowStabilization}"
+                          ToolTip="{Binding FlowStabilizationToggleHint}" />
+                <TextBlock Grid.Column="11"
+                           VerticalAlignment="Center"
+                           FontSize="11"
+                           Foreground="{StaticResource MutedTextBrush}"
+                           Text="{Binding FlowStabilizationStateText}"
+                           TextTrimming="CharacterEllipsis"
+                           ToolTip="{Binding FlowStabilizationStateText}" />
+            </Grid>
+        </DataTemplate>
     </Window.Resources>
     <Grid Margin="12">
         <Grid.RowDefinitions>
@@ -202,6 +281,16 @@
                                                                   Cursor="Hand"
                                                                   PreviewMouseLeftButtonDown="PumpSetpointTextBox_OnPreviewMouseLeftButtonDown"
                                                                   GotKeyboardFocus="PumpSetpointTextBox_OnGotKeyboardFocus" />
+                                                        <CheckBox Margin="0,8,0,0"
+                                                                  Content="稳流"
+                                                                  IsChecked="{Binding IsFlowStabilizationEnabled, UpdateSourceTrigger=PropertyChanged}"
+                                                                  IsEnabled="{Binding CanUseFlowStabilization}"
+                                                                  ToolTip="{Binding FlowStabilizationToggleHint}" />
+                                                        <TextBlock Margin="0,4,0,0"
+                                                                   FontSize="11"
+                                                                   Foreground="{StaticResource MutedTextBrush}"
+                                                                   Text="{Binding FlowStabilizationStateText}"
+                                                                   TextWrapping="Wrap" />
                                                         <Border Margin="0,10,0,0"
                                                                 Padding="10,6"
                                                                 Background="{Binding SetpointStatusBackground}"
@@ -939,6 +1028,105 @@
                         </ScrollViewer>
                     </TabItem>
 
+                    <TabItem x:Name="TightnessTestTab" Header="密合性">
+                        <ScrollViewer Margin="0,6,0,0" VerticalScrollBarVisibility="Auto" CanContentScroll="False">
+                            <StackPanel>
+                                <Border Style="{StaticResource CardBorderStyle}" Padding="14">
+                                    <ItemsControl ItemsSource="{Binding PressureDropRs485FlowPumpControls}"
+                                                  ItemTemplate="{StaticResource ProjectRs485PumpCardTemplate}">
+                                        <ItemsControl.ItemsPanel>
+                                            <ItemsPanelTemplate>
+                                                <WrapPanel />
+                                            </ItemsPanelTemplate>
+                                        </ItemsControl.ItemsPanel>
+                                    </ItemsControl>
+                                </Border>
+
+                                <Border Style="{StaticResource CardBorderStyle}" Padding="14">
+                                    <StackPanel IsEnabled="{Binding HasTightnessInspectionItem}">
+                                        <Grid Margin="0,0,0,8">
+                                            <Grid.ColumnDefinitions>
+                                                <ColumnDefinition Width="*" />
+                                                <ColumnDefinition Width="12" />
+                                                <ColumnDefinition Width="Auto" />
+                                            </Grid.ColumnDefinitions>
+                                            <TextBlock Grid.Column="0"
+                                                       VerticalAlignment="Center"
+                                                       Style="{StaticResource SectionTitleStyle}"
+                                                       Text="{Binding SelectedItemTitle}"
+                                                       TextTrimming="CharacterEllipsis" />
+                                            <Button Grid.Column="2"
+                                                    MinWidth="112"
+                                                    MinHeight="32"
+                                                    Padding="12,5"
+                                                    Click="OpenProjectInfoDialogButton_OnClick"
+                                                    Background="#FFE3F6EF"
+                                                    Foreground="{StaticResource HeaderBrush}"
+                                                    BorderBrush="#FF9CCBBF"
+                                                    Content="查看项目说明" />
+                                        </Grid>
+                                        <TextBlock Style="{StaticResource CaptionStyle}" Text="结果记录" />
+                                        <TextBox Margin="0,4,0,0"
+                                                 Text="{Binding ResultValue, UpdateSourceTrigger=PropertyChanged}"
+                                                 MinHeight="118"
+                                                 AcceptsReturn="True"
+                                                 TextWrapping="Wrap"
+                                                 VerticalScrollBarVisibility="Auto"
+                                                 IsReadOnly="{Binding SelectedItemUsesRealtimeValue}" />
+
+                                        <Grid Margin="0,10,0,0">
+                                            <Grid.ColumnDefinitions>
+                                                <ColumnDefinition Width="*" />
+                                                <ColumnDefinition Width="12" />
+                                                <ColumnDefinition Width="*" />
+                                            </Grid.ColumnDefinitions>
+                                            <Grid.RowDefinitions>
+                                                <RowDefinition Height="Auto" />
+                                                <RowDefinition Height="Auto" />
+                                                <RowDefinition Height="Auto" />
+                                                <RowDefinition Height="Auto" />
+                                            </Grid.RowDefinitions>
+                                            <TextBlock Style="{StaticResource CaptionStyle}" Text="判定" />
+                                            <ComboBox Grid.Row="1"
+                                                      ItemsSource="{Binding ResultStatusOptions}"
+                                                      SelectedItem="{Binding SelectedResultStatusText, Mode=TwoWay}" />
+                                            <TextBlock Grid.Column="2" Style="{StaticResource CaptionStyle}" Text="记录人" />
+                                            <TextBox Grid.Row="1" Grid.Column="2" Text="{Binding ResultOperator, UpdateSourceTrigger=PropertyChanged}" />
+                                            <TextBlock Grid.Row="2" Style="{StaticResource CaptionStyle}" Text="复核人" />
+                                            <TextBox Grid.Row="3" Text="{Binding ReviewerName, UpdateSourceTrigger=PropertyChanged}" />
+                                            <TextBlock Grid.Row="2" Grid.Column="2" Style="{StaticResource CaptionStyle}" Text="批准人" />
+                                            <TextBox Grid.Row="3" Grid.Column="2" Text="{Binding ApproverName, UpdateSourceTrigger=PropertyChanged}" />
+                                        </Grid>
+
+                                        <TextBlock Margin="0,10,0,0" Style="{StaticResource CaptionStyle}" Text="复核备注" />
+                                        <TextBox Margin="0,4,0,0"
+                                                 Text="{Binding ResultNote, UpdateSourceTrigger=PropertyChanged}"
+                                                 MinHeight="96"
+                                                 AcceptsReturn="True"
+                                                 TextWrapping="Wrap"
+                                                 VerticalScrollBarVisibility="Auto"
+                                                 IsReadOnly="{Binding SelectedItemUsesRealtimeValue}" />
+
+                                        <DockPanel Margin="0,12,0,0" LastChildFill="True">
+                                            <Button DockPanel.Dock="Right"
+                                                    MinWidth="112"
+                                                    Height="34"
+                                                    Padding="12,4"
+                                                    Command="{Binding ApplyResultCommand}"
+                                                    Content="保存结果"
+                                                    Background="#FF4D8C72"
+                                                    IsEnabled="{Binding CanModifySession}" />
+                                            <TextBlock VerticalAlignment="Center"
+                                                       Style="{StaticResource CaptionStyle}"
+                                                       Text="{Binding LatestAction}"
+                                                       TextWrapping="Wrap" />
+                                        </DockPanel>
+                                    </StackPanel>
+                                </Border>
+                            </StackPanel>
+                        </ScrollViewer>
+                    </TabItem>
+
                     <TabItem x:Name="ManualSupplementTab" Header="项目补充">
                         <ScrollViewer Margin="0,6,0,0" VerticalScrollBarVisibility="Auto" CanContentScroll="False">
                             <StackPanel>
@@ -1070,34 +1258,8 @@
                                         </Style.Triggers>
                                     </Style>
                                 </Border.Style>
-                                <Border.Resources>
-                                    <DataTemplate x:Key="KinkResistanceRs485PumpCardTemplate" DataType="{x:Type models:PumpControlChannel}">
-                                        <Border MinWidth="640"
-                                                Margin="0,0,10,10"
-                                                Padding="0">
-                                            <Grid>
-                                                <Grid.ColumnDefinitions>
-                                                    <ColumnDefinition Width="150" />
-                                                    <ColumnDefinition Width="116" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="*" />
-                                                </Grid.ColumnDefinitions>
-                                                <Grid.RowDefinitions>
-                                                    <RowDefinition Height="Auto" />
-                                                    <RowDefinition Height="Auto" />
-                                                </Grid.RowDefinitions>
-                                                <TextBlock Grid.Column="0" VerticalAlignment="Center" FontSize="14" FontWeight="Bold" Text="{Binding Name}" TextWrapping="Wrap" />
-                                                <TextBox Grid.Column="1" Width="108" Height="32" Margin="8,0,0,0" VerticalContentAlignment="Center" Text="{Binding PendingSetpointText, UpdateSourceTrigger=PropertyChanged}" IsReadOnly="True" Cursor="Hand" PreviewMouseLeftButtonDown="PumpSetpointTextBox_OnPreviewMouseLeftButtonDown" GotKeyboardFocus="PumpSetpointTextBox_OnGotKeyboardFocus" />
-                                                <Button Grid.Column="2" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StartSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="启动" IsEnabled="{Binding CanStartRs485Action}" Background="#FF2B8F6A" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StartActionHint}" />
-                                                <Button Grid.Column="3" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StopSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="停止" IsEnabled="{Binding CanStopRs485Action}" Background="#FFB85C38" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StopActionHint}" />
-                                                <TextBlock Grid.Column="4" Margin="10,0,0,0" VerticalAlignment="Center" FontSize="12" FontWeight="Bold" Foreground="{Binding SetpointStatusForeground}" Text="{Binding Rs485RunStateText}" TextWrapping="Wrap" />
-                                            </Grid>
-                                        </Border>
-                                    </DataTemplate>
-                                </Border.Resources>
                                 <StackPanel>
-                                    <Grid Margin="0,8,0,0">
+                                    <Grid Margin="0,4,0,0">
                                         <Grid.ColumnDefinitions>
                                             <ColumnDefinition Width="*" />
                                             <ColumnDefinition Width="12" />
@@ -1105,7 +1267,7 @@
                                         </Grid.ColumnDefinitions>
                                         <ItemsControl Grid.Column="0"
                                                       ItemsSource="{Binding KinkResistanceRs485FlowPumpControls}"
-                                                      ItemTemplate="{StaticResource KinkResistanceRs485PumpCardTemplate}">
+                                                      ItemTemplate="{StaticResource ProjectRs485PumpCardTemplate}">
                                             <ItemsControl.ItemsPanel>
                                                 <ItemsPanelTemplate>
                                                     <WrapPanel />
@@ -1133,30 +1295,6 @@
                                     </Style>
                                 </Border.Style>
                                 <Border.Resources>
-                                    <DataTemplate x:Key="PressureDropRs485QuickPumpCardTemplate" DataType="{x:Type models:PumpControlChannel}">
-                                        <Border MinWidth="640"
-                                                Margin="0,0,10,10"
-                                                Padding="0">
-                                            <Grid>
-                                                <Grid.ColumnDefinitions>
-                                                    <ColumnDefinition Width="150" />
-                                                    <ColumnDefinition Width="116" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="*" />
-                                                </Grid.ColumnDefinitions>
-                                                <Grid.RowDefinitions>
-                                                    <RowDefinition Height="Auto" />
-                                                    <RowDefinition Height="Auto" />
-                                                </Grid.RowDefinitions>
-                                                <TextBlock Grid.Column="0" VerticalAlignment="Center" FontSize="14" FontWeight="Bold" Text="{Binding Name}" TextWrapping="Wrap" />
-                                                <TextBox Grid.Column="1" Width="108" Height="32" Margin="8,0,0,0" VerticalContentAlignment="Center" Text="{Binding PendingSetpointText, UpdateSourceTrigger=PropertyChanged}" IsReadOnly="True" Cursor="Hand" PreviewMouseLeftButtonDown="PumpSetpointTextBox_OnPreviewMouseLeftButtonDown" GotKeyboardFocus="PumpSetpointTextBox_OnGotKeyboardFocus" />
-                                                <Button Grid.Column="2" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StartSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="启动" IsEnabled="{Binding CanStartRs485Action}" Background="#FF2B8F6A" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StartActionHint}" />
-                                                <Button Grid.Column="3" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StopSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="停止" IsEnabled="{Binding CanStopRs485Action}" Background="#FFB85C38" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StopActionHint}" />
-                                                <TextBlock Grid.Column="4" Margin="10,0,0,0" VerticalAlignment="Center" FontSize="12" FontWeight="Bold" Foreground="{Binding SetpointStatusForeground}" Text="{Binding Rs485RunStateText}" TextWrapping="Wrap" />
-                                            </Grid>
-                                        </Border>
-                                    </DataTemplate>
                                     <DataTemplate x:Key="PressureDropValveControlCardTemplate" DataType="{x:Type models:ValveControlChannel}">
                                         <Button MinWidth="132"
                                                 Height="34"
@@ -1170,7 +1308,7 @@
                                                 ToolTip="{Binding StateText}" />
                                     </DataTemplate>
                                 </Border.Resources>
-                                <Grid Margin="0,8,0,0">
+                                <Grid Margin="0,4,0,0">
                                     <Grid.ColumnDefinitions>
                                         <ColumnDefinition Width="*" />
                                         <ColumnDefinition Width="12" />
@@ -1178,7 +1316,7 @@
                                     </Grid.ColumnDefinitions>
                                     <ItemsControl Grid.Column="0"
                                                   ItemsSource="{Binding PressureDropRs485FlowPumpControls}"
-                                                  ItemTemplate="{StaticResource PressureDropRs485QuickPumpCardTemplate}">
+                                                  ItemTemplate="{StaticResource ProjectRs485PumpCardTemplate}">
                                         <ItemsControl.ItemsPanel>
                                             <ItemsPanelTemplate>
                                                 <WrapPanel />
@@ -1224,70 +1362,38 @@
                                         </Style.Triggers>
                                     </Style>
                                 </Border.Style>
-                                <Border.Resources>
-                                    <DataTemplate x:Key="RecirculationRs485PumpCardTemplate" DataType="{x:Type models:PumpControlChannel}">
-                                        <Border MinWidth="640"
-                                                Margin="0,0,10,10"
-                                                Padding="0">
-                                            <Grid>
-                                                <Grid.ColumnDefinitions>
-                                                    <ColumnDefinition Width="150" />
-                                                    <ColumnDefinition Width="116" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="*" />
-                                                </Grid.ColumnDefinitions>
-                                                <Grid.RowDefinitions>
-                                                    <RowDefinition Height="Auto" />
-                                                    <RowDefinition Height="Auto" />
-                                                </Grid.RowDefinitions>
-                                                <TextBlock Grid.Column="0" VerticalAlignment="Center" FontSize="14" FontWeight="Bold" Text="{Binding Name}" TextWrapping="Wrap" />
-                                                <TextBox Grid.Column="1" Width="108" Height="32" Margin="8,0,0,0" VerticalContentAlignment="Center" Text="{Binding PendingSetpointText, UpdateSourceTrigger=PropertyChanged}" IsReadOnly="True" Cursor="Hand" PreviewMouseLeftButtonDown="PumpSetpointTextBox_OnPreviewMouseLeftButtonDown" GotKeyboardFocus="PumpSetpointTextBox_OnGotKeyboardFocus" />
-                                                <Button Grid.Column="2" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StartSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="启动" IsEnabled="{Binding CanStartRs485Action}" Background="#FF2B8F6A" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StartActionHint}" />
-                                                <Button Grid.Column="3" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StopSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="停止" IsEnabled="{Binding CanStopRs485Action}" Background="#FFB85C38" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StopActionHint}" />
-                                                <TextBlock Grid.Column="4" Margin="10,0,0,0" VerticalAlignment="Center" FontSize="12" FontWeight="Bold" Foreground="{Binding SetpointStatusForeground}" Text="{Binding Rs485RunStateText}" TextWrapping="Wrap" />
-                                            </Grid>
-                                        </Border>
-                                    </DataTemplate>
-                                </Border.Resources>
-                                <StackPanel>
-                                    <DockPanel LastChildFill="False">
-                                        <StackPanel DockPanel.Dock="Left">
-                                        </StackPanel>
-                                        <WrapPanel DockPanel.Dock="Right" Margin="12,0,0,0">
-                                            <Button MinWidth="120"
-                                                    Height="34"
-                                                    Padding="12,4"
-                                                    Margin="0,0,8,8"
-                                                    Command="{Binding StartRecirculationRs485PumpsCommand}"
-                                                    Content="统一启动三泵"
-                                                    Background="#FF2B8F6A" />
-                                            <Button MinWidth="120"
-                                                    Height="34"
-                                                    Padding="12,4"
-                                                    Margin="0,0,8,8"
-                                                    Command="{Binding StopRecirculationRs485PumpsCommand}"
-                                                    Content="统一停止三泵"
-                                                    Background="#FFB85C38" />
-                                        </WrapPanel>
-                                    </DockPanel>
-                                    <Grid Margin="0,8,0,0">
-                                        <Grid.ColumnDefinitions>
-                                            <ColumnDefinition Width="*" />
-                                            <ColumnDefinition Width="12" />
-                                            <ColumnDefinition Width="Auto" />
-                                        </Grid.ColumnDefinitions>
-                                        <ItemsControl Grid.Column="0"
-                                                      ItemsSource="{Binding RecirculationRs485FlowPumpControls}"
-                                                      ItemTemplate="{StaticResource RecirculationRs485PumpCardTemplate}">
-                                            <ItemsControl.ItemsPanel>
-                                                <ItemsPanelTemplate>
-                                                    <WrapPanel />
-                                                </ItemsPanelTemplate>
-                                            </ItemsControl.ItemsPanel>
-                                        </ItemsControl>
-                                    </Grid>
-                                </StackPanel>
+                                <Grid Margin="0,4,0,0">
+                                    <Grid.ColumnDefinitions>
+                                        <ColumnDefinition Width="*" />
+                                        <ColumnDefinition Width="12" />
+                                        <ColumnDefinition Width="Auto" />
+                                    </Grid.ColumnDefinitions>
+                                    <ItemsControl Grid.Column="0"
+                                                  ItemsSource="{Binding RecirculationRs485FlowPumpControls}"
+                                                  ItemTemplate="{StaticResource ProjectRs485PumpCardTemplate}">
+                                        <ItemsControl.ItemsPanel>
+                                            <ItemsPanelTemplate>
+                                                <WrapPanel />
+                                            </ItemsPanelTemplate>
+                                        </ItemsControl.ItemsPanel>
+                                    </ItemsControl>
+                                    <WrapPanel Grid.Column="2" VerticalAlignment="Top">
+                                        <Button MinWidth="112"
+                                                Height="34"
+                                                Padding="10,4"
+                                                Margin="0,0,8,6"
+                                                Command="{Binding StartRecirculationRs485PumpsCommand}"
+                                                Content="统一启动"
+                                                Background="#FF2B8F6A" />
+                                        <Button MinWidth="112"
+                                                Height="34"
+                                                Padding="10,4"
+                                                Margin="0,0,0,6"
+                                                Command="{Binding StopRecirculationRs485PumpsCommand}"
+                                                Content="统一停止"
+                                                Background="#FFB85C38" />
+                                    </WrapPanel>
+                                </Grid>
                             </Border>
                             <Border>
                                 <Border.Style>
@@ -1312,30 +1418,6 @@
                                     </Style>
                                 </Border.Style>
                                 <Border.Resources>
-                                    <DataTemplate x:Key="AntiCollapseRs485QuickPumpCardTemplate" DataType="{x:Type models:PumpControlChannel}">
-                                        <Border MinWidth="640"
-                                                Margin="0,0,10,10"
-                                                Padding="0">
-                                            <Grid>
-                                                <Grid.ColumnDefinitions>
-                                                    <ColumnDefinition Width="150" />
-                                                    <ColumnDefinition Width="116" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="*" />
-                                                </Grid.ColumnDefinitions>
-                                                <Grid.RowDefinitions>
-                                                    <RowDefinition Height="Auto" />
-                                                    <RowDefinition Height="Auto" />
-                                                </Grid.RowDefinitions>
-                                                <TextBlock Grid.Column="0" VerticalAlignment="Center" FontSize="14" FontWeight="Bold" Text="{Binding Name}" TextWrapping="Wrap" />
-                                                <TextBox Grid.Column="1" Width="108" Height="32" Margin="8,0,0,0" VerticalContentAlignment="Center" Text="{Binding PendingSetpointText, UpdateSourceTrigger=PropertyChanged}" IsReadOnly="True" Cursor="Hand" PreviewMouseLeftButtonDown="PumpSetpointTextBox_OnPreviewMouseLeftButtonDown" GotKeyboardFocus="PumpSetpointTextBox_OnGotKeyboardFocus" />
-                                                <Button Grid.Column="2" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StartSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="启动" IsEnabled="{Binding CanStartRs485Action}" Background="#FF2B8F6A" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StartActionHint}" />
-                                                <Button Grid.Column="3" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StopSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="停止" IsEnabled="{Binding CanStopRs485Action}" Background="#FFB85C38" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StopActionHint}" />
-                                                <TextBlock Grid.Column="4" Margin="10,0,0,0" VerticalAlignment="Center" FontSize="12" FontWeight="Bold" Foreground="{Binding SetpointStatusForeground}" Text="{Binding Rs485RunStateText}" TextWrapping="Wrap" />
-                                            </Grid>
-                                        </Border>
-                                    </DataTemplate>
                                     <DataTemplate x:Key="AntiCollapsePumpControlCardTemplate" DataType="{x:Type models:PumpControlChannel}">
                                         <Button MinWidth="132"
                                                 Height="34"
@@ -1362,9 +1444,9 @@
                                     </DataTemplate>
                                 </Border.Resources>
                                 <StackPanel>
-                                    <WrapPanel Margin="0,8,0,0">
+                                    <WrapPanel Margin="0,4,0,0">
                                         <ItemsControl ItemsSource="{Binding PressureDropRs485FlowPumpControls}"
-                                                      ItemTemplate="{StaticResource AntiCollapseRs485QuickPumpCardTemplate}">
+                                                      ItemTemplate="{StaticResource ProjectRs485PumpCardTemplate}">
                                             <ItemsControl.Style>
                                                 <Style TargetType="ItemsControl">
                                                     <Setter Property="Visibility" Value="Visible" />
@@ -1377,7 +1459,7 @@
                                             </ItemsControl.Style>
                                             <ItemsControl.ItemsPanel>
                                                 <ItemsPanelTemplate>
-                                                    <StackPanel Orientation="Horizontal" />
+                                                    <WrapPanel />
                                                 </ItemsPanelTemplate>
                                             </ItemsControl.ItemsPanel>
                                         </ItemsControl>
@@ -1437,34 +1519,8 @@
                                         </Style.Triggers>
                                     </Style>
                                 </Border.Style>
-                                <Border.Resources>
-                                    <DataTemplate x:Key="HemolysisRs485PumpCardTemplate" DataType="{x:Type models:PumpControlChannel}">
-                                        <Border MinWidth="640"
-                                                Margin="0,0,10,10"
-                                                Padding="0">
-                                            <Grid>
-                                                <Grid.ColumnDefinitions>
-                                                    <ColumnDefinition Width="150" />
-                                                    <ColumnDefinition Width="116" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="Auto" />
-                                                    <ColumnDefinition Width="*" />
-                                                </Grid.ColumnDefinitions>
-                                                <Grid.RowDefinitions>
-                                                    <RowDefinition Height="Auto" />
-                                                    <RowDefinition Height="Auto" />
-                                                </Grid.RowDefinitions>
-                                                <TextBlock Grid.Column="0" VerticalAlignment="Center" FontSize="14" FontWeight="Bold" Text="{Binding Name}" TextWrapping="Wrap" />
-                                                <TextBox Grid.Column="1" Width="108" Height="32" Margin="8,0,0,0" VerticalContentAlignment="Center" Text="{Binding PendingSetpointText, UpdateSourceTrigger=PropertyChanged}" IsReadOnly="True" Cursor="Hand" PreviewMouseLeftButtonDown="PumpSetpointTextBox_OnPreviewMouseLeftButtonDown" GotKeyboardFocus="PumpSetpointTextBox_OnGotKeyboardFocus" />
-                                                <Button Grid.Column="2" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StartSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="启动" IsEnabled="{Binding CanStartRs485Action}" Background="#FF2B8F6A" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StartActionHint}" />
-                                                <Button Grid.Column="3" MinWidth="66" Height="32" Margin="8,0,0,0" Padding="8,2" Command="{Binding DataContext.StopSingleRs485PumpCommand, RelativeSource={RelativeSource AncestorType=Window}}" CommandParameter="{Binding}" Content="停止" IsEnabled="{Binding CanStopRs485Action}" Background="#FFB85C38" ToolTipService.ShowOnDisabled="True" ToolTip="{Binding StopActionHint}" />
-                                                <TextBlock Grid.Column="4" Margin="10,0,0,0" VerticalAlignment="Center" FontSize="12" FontWeight="Bold" Foreground="{Binding SetpointStatusForeground}" Text="{Binding Rs485RunStateText}" TextWrapping="Wrap" />
-                                            </Grid>
-                                        </Border>
-                                    </DataTemplate>
-                                </Border.Resources>
                                 <StackPanel>
-                                    <Grid Margin="0,8,0,0">
+                                    <Grid Margin="0,4,0,0">
                                         <Grid.ColumnDefinitions>
                                             <ColumnDefinition Width="*" />
                                             <ColumnDefinition Width="12" />
@@ -1472,7 +1528,7 @@
                                         </Grid.ColumnDefinitions>
                                         <ItemsControl Grid.Column="0"
                                                       ItemsSource="{Binding HemolysisRs485FlowPumpControls}"
-                                                      ItemTemplate="{StaticResource HemolysisRs485PumpCardTemplate}">
+                                                      ItemTemplate="{StaticResource ProjectRs485PumpCardTemplate}">
                                             <ItemsControl.ItemsPanel>
                                                 <ItemsPanelTemplate>
                                                     <WrapPanel />
@@ -1495,18 +1551,27 @@
                                     </Style>
                                 </Border.Style>
                                 <StackPanel>
-                                            <DockPanel LastChildFill="False">
-                                                <Button DockPanel.Dock="Right"
+                                    <Grid Margin="0,0,0,8">
+                                        <Grid.ColumnDefinitions>
+                                            <ColumnDefinition Width="*" />
+                                            <ColumnDefinition Width="12" />
+                                            <ColumnDefinition Width="Auto" />
+                                        </Grid.ColumnDefinitions>
+                                        <TextBlock Grid.Column="0"
+                                                   VerticalAlignment="Center"
+                                                   Style="{StaticResource SectionTitleStyle}"
+                                                   Text="{Binding SelectedItemTitle}"
+                                                   TextTrimming="CharacterEllipsis" />
+                                        <Button Grid.Column="2"
                                                 MinWidth="112"
                                                 MinHeight="32"
                                                 Padding="12,5"
-                                                Margin="12,0,0,8"
                                                 Click="OpenProjectInfoDialogButton_OnClick"
                                                 Background="#FFE3F6EF"
                                                 Foreground="{StaticResource HeaderBrush}"
                                                 BorderBrush="#FF9CCBBF"
                                                 Content="查看项目说明" />
-                                    </DockPanel>
+                                    </Grid>
                                     <Grid Margin="0,2,0,0">
                                             <StackPanel Margin="0,0,0,4" IsEnabled="{Binding CanModifySession}">
                                                 <Border Margin="0,0,0,16" Padding="0">
@@ -1983,13 +2048,21 @@
                                                 </Border>
                                             </StackPanel>
                                     </Grid>
-                                    <Grid Margin="0,8,0,0">
+                                    <Grid Margin="0,4,0,0">
                                         <Grid.ColumnDefinitions>
                                             <ColumnDefinition Width="*" />
                                             <ColumnDefinition Width="12" />
                                             <ColumnDefinition Width="Auto" />
                                         </Grid.ColumnDefinitions>
                                         <TextBlock Grid.Column="0" VerticalAlignment="Center" Style="{StaticResource CaptionStyle}" Text="{Binding LatestAction}" TextWrapping="Wrap" />
+                                        <Button Grid.Column="2"
+                                                MinWidth="112"
+                                                Height="34"
+                                                Padding="12,4"
+                                                Command="{Binding ApplyResultCommand}"
+                                                Content="保存结果"
+                                                Background="#FF4D8C72"
+                                                IsEnabled="{Binding CanModifySession}" />
                                     </Grid>
                                 </StackPanel>
                             </Border>
diff --git a/Cardiopulmonarybypasssystems/MainWindow.xaml.cs b/Cardiopulmonarybypasssystems/MainWindow.xaml.cs
index d20319e..ff09d3e 100644
--- a/Cardiopulmonarybypasssystems/MainWindow.xaml.cs
+++ b/Cardiopulmonarybypasssystems/MainWindow.xaml.cs
@@ -21,6 +21,7 @@ public partial class MainWindow : Window
     private readonly List<Button> _projectInspectionButtons = [];
     private object? _projectInspectionContent;
     private object? _realtimeContent;
+    private object? _tightnessTestContent;
     private object? _manualSupplementContent;
     private object? _configurationContent;
     private object? _traceContent;
@@ -85,6 +86,7 @@ public partial class MainWindow : Window
     {
         _realtimeContent = ExtractTabContent(RealtimeDataTab);
         _projectInspectionContent = ExtractTabContent(ProjectListTab);
+        _tightnessTestContent = ExtractTabContent(TightnessTestTab);
         _manualSupplementContent = ExtractTabContent(ManualSupplementTab);
         _configurationContent = ExtractTabContent(ConfigurationTab);
         _traceContent = ExtractTabContent(TraceTab);
@@ -126,6 +128,7 @@ public partial class MainWindow : Window
             _projectInspectionButtons.Add(button);
         }
 
+        AddNavigationButton("密合性", new NavigationTarget(NavigationPage.TightnessTest, null));
         AddNavigationButton("项目补充", new NavigationTarget(NavigationPage.ManualSupplement, null));
         AddNavigationButton("配置", new NavigationTarget(NavigationPage.Configuration, null));
         AddNavigationButton("追溯", new NavigationTarget(NavigationPage.Trace, null));
@@ -188,9 +191,19 @@ public partial class MainWindow : Window
     {
         _currentPage = page;
         _currentProjectItem = null;
+
+        if (page == NavigationPage.TightnessTest
+            && DataContext is MainViewModel viewModel
+            && viewModel.TightnessInspectionItem is not null
+            && !ReferenceEquals(viewModel.SelectedItem, viewModel.TightnessInspectionItem))
+        {
+            viewModel.SelectedItem = viewModel.TightnessInspectionItem;
+        }
+
         MainContentHost.Content = page switch
         {
             NavigationPage.RealtimeData => _realtimeContent,
+            NavigationPage.TightnessTest => _tightnessTestContent,
             NavigationPage.ManualSupplement => _manualSupplementContent,
             NavigationPage.Configuration => _configurationContent,
             NavigationPage.Trace => _traceContent,
@@ -254,6 +267,7 @@ public partial class MainWindow : Window
     {
         RealtimeData,
         ProjectItem,
+        TightnessTest,
         ManualSupplement,
         Configuration,
         Trace
diff --git a/Cardiopulmonarybypasssystems/Models/PumpControlChannel.cs b/Cardiopulmonarybypasssystems/Models/PumpControlChannel.cs
index 80b7325..203b9e8 100644
--- a/Cardiopulmonarybypasssystems/Models/PumpControlChannel.cs
+++ b/Cardiopulmonarybypasssystems/Models/PumpControlChannel.cs
@@ -109,6 +109,18 @@ public partial class PumpControlChannel : ObservableObject
     [ObservableProperty]
     private bool isBatchSelected;
 
+    [ObservableProperty]
+    private bool isFlowStabilizationEnabled;
+
+    [ObservableProperty]
+    private DateTime lastFlowStabilizationAdjustmentUtc = DateTime.MinValue;
+
+    [ObservableProperty]
+    private int flowStabilizationRawSetpoint;
+
+    [ObservableProperty]
+    private string flowStabilizationStatusText = "稳流未启用";
+
     public string StartAddressDisplay => $"M{StartAddress}";
     public string FlowAddressDisplay => FlowAddress.HasValue ? $"D{FlowAddress.Value}" : "-";
     public bool HasFlowTelemetry => FlowAddress.HasValue;
@@ -224,6 +236,15 @@ public partial class PumpControlChannel : ObservableObject
             : "未配置流量换算系数";
     public string Rs485ReadActionText => IsRs485Busy ? "处理中" : "读取";
     public string Rs485WriteActionText => IsRs485Busy ? "处理中" : "写入";
+    public bool CanUseFlowStabilization => SupportsRs485DirectControl && Key != "KinkResistancePump";
+    public string FlowStabilizationToggleHint => CanUseFlowStabilization
+        ? "按实际流量小步调节泵速"
+        : "抗扭结采样要求保持固定转速";
+    public string FlowStabilizationStateText => !CanUseFlowStabilization
+        ? "固定转速"
+        : IsFlowStabilizationEnabled
+            ? FlowStabilizationStatusText
+            : "稳流未启用";
     public string SetpointStatusForeground => ResolveSetpointStatusForeground();
     public string SetpointStatusBackground => ResolveSetpointStatusBackground();
 
@@ -241,6 +262,7 @@ public partial class PumpControlChannel : ObservableObject
         OnPropertyChanged(nameof(CanToggleRs485Action));
         OnPropertyChanged(nameof(ToggleActionHint));
         OnPropertyChanged(nameof(CardPrimaryDisplay));
+        OnPropertyChanged(nameof(FlowStabilizationStateText));
     }
 
     partial void OnFlowValueChanged(double value)
@@ -251,6 +273,7 @@ public partial class PumpControlChannel : ObservableObject
         OnPropertyChanged(nameof(StateHint));
         OnPropertyChanged(nameof(IndicatorColor));
         OnPropertyChanged(nameof(CardPrimaryDisplay));
+        OnPropertyChanged(nameof(FlowStabilizationStateText));
     }
 
     partial void OnStateAvailableChanged(bool value)
@@ -260,6 +283,7 @@ public partial class PumpControlChannel : ObservableObject
         OnPropertyChanged(nameof(IndicatorColor));
         OnPropertyChanged(nameof(ToggleButtonText));
         OnPropertyChanged(nameof(CardPrimaryDisplay));
+        OnPropertyChanged(nameof(FlowStabilizationStateText));
     }
 
     partial void OnFlowAvailableChanged(bool value)
@@ -270,6 +294,7 @@ public partial class PumpControlChannel : ObservableObject
         OnPropertyChanged(nameof(StateHint));
         OnPropertyChanged(nameof(IndicatorColor));
         OnPropertyChanged(nameof(CardPrimaryDisplay));
+        OnPropertyChanged(nameof(FlowStabilizationStateText));
     }
 
     partial void OnRs485EnabledChanged(bool value)
@@ -280,11 +305,33 @@ public partial class PumpControlChannel : ObservableObject
         OnPropertyChanged(nameof(CalibrationStatusText));
         OnPropertyChanged(nameof(SetpointReadbackDisplay));
         OnPropertyChanged(nameof(RawSetpointDisplay));
+        OnPropertyChanged(nameof(CanUseFlowStabilization));
+        OnPropertyChanged(nameof(FlowStabilizationToggleHint));
+        OnPropertyChanged(nameof(FlowStabilizationStateText));
     }
 
     partial void OnRs485SlaveAddressChanged(byte value) => OnPropertyChanged(nameof(Rs485SlaveAddressDisplay));
 
-    partial void OnRs485MotorControlRegisterChanged(ushort value) => OnPropertyChanged(nameof(SupportsRs485DirectControl));
+    partial void OnRs485MotorControlRegisterChanged(ushort value)
+    {
+        OnPropertyChanged(nameof(SupportsRs485DirectControl));
+        OnPropertyChanged(nameof(CanUseFlowStabilization));
+        OnPropertyChanged(nameof(FlowStabilizationToggleHint));
+        OnPropertyChanged(nameof(FlowStabilizationStateText));
+    }
+
+    partial void OnIsFlowStabilizationEnabledChanged(bool value)
+    {
+        if (!value)
+        {
+            FlowStabilizationStatusText = "稳流未启用";
+        }
+
+        OnPropertyChanged(nameof(FlowStabilizationStateText));
+    }
+
+    partial void OnFlowStabilizationStatusTextChanged(string value) =>
+        OnPropertyChanged(nameof(FlowStabilizationStateText));
 
     partial void OnRs485RawPerLitrePerMinuteChanged(double value)
     {
@@ -327,6 +374,7 @@ public partial class PumpControlChannel : ObservableObject
         ConfirmedSetpointAvailable = false;
         ConfirmedRawSetpointValue = 0;
         ConfirmedSetpointFlowValue = 0;
+        FlowStabilizationRawSetpoint = 0;
     }
 
     partial void OnSetpointAvailableChanged(bool value)
diff --git a/Cardiopulmonarybypasssystems/Models/Rs485PumpBindingSettings.cs b/Cardiopulmonarybypasssystems/Models/Rs485PumpBindingSettings.cs
index c988b5b..5a6c1b1 100644
--- a/Cardiopulmonarybypasssystems/Models/Rs485PumpBindingSettings.cs
+++ b/Cardiopulmonarybypasssystems/Models/Rs485PumpBindingSettings.cs
@@ -16,5 +16,5 @@ public sealed class Rs485PumpBindingSettings
     public double RawPerLitrePerMinute { get; set; }
     public double RawOffset { get; set; }
     public double MinFlowLpm { get; set; }
-    public double MaxFlowLpm { get; set; } = 7.0;
+    public double MaxFlowLpm { get; set; } = 20.0;
 }
diff --git a/Cardiopulmonarybypasssystems/Services/IRs485PumpFlowService.cs b/Cardiopulmonarybypasssystems/Services/IRs485PumpFlowService.cs
index ab43e26..ac25d56 100644
--- a/Cardiopulmonarybypasssystems/Services/IRs485PumpFlowService.cs
+++ b/Cardiopulmonarybypasssystems/Services/IRs485PumpFlowService.cs
@@ -8,6 +8,7 @@ public interface IRs485PumpFlowService
     Rs485PumpFlowOperationResult ReadPumpPreset(Rs485PumpFlowRequest request);
     IReadOnlyList<Rs485PumpRuntimeSnapshot> ReadPumpRuntimeStates(IReadOnlyList<Rs485PumpFlowRequest> requests);
     Rs485PumpFlowOperationResult WritePumpPreset(Rs485PumpFlowRequest request, ushort rawForwardSpeed);
+    Rs485PumpFlowOperationResult WritePumpMotorCommand(Rs485PumpFlowRequest request, short rawMotorSpeed);
     Rs485PumpFlowOperationResult StartPump(Rs485PumpFlowRequest request, short rawMotorSpeed);
     Rs485PumpFlowOperationResult StopPump(Rs485PumpFlowRequest request);
 }
diff --git a/Cardiopulmonarybypasssystems/Services/Rs485PumpFlowService.cs b/Cardiopulmonarybypasssystems/Services/Rs485PumpFlowService.cs
index 36aea51..75b6ee8 100644
--- a/Cardiopulmonarybypasssystems/Services/Rs485PumpFlowService.cs
+++ b/Cardiopulmonarybypasssystems/Services/Rs485PumpFlowService.cs
@@ -278,6 +278,48 @@ public sealed class Rs485PumpFlowService : IRs485PumpFlowService
         });
     }
 
+    public Rs485PumpFlowOperationResult WritePumpMotorCommand(Rs485PumpFlowRequest request, short rawMotorSpeed)
+    {
+        return Execute(request, master =>
+        {
+            var slave = request.PumpSettings.SlaveAddress;
+            if (rawMotorSpeed <= 0)
+            {
+                return Failure("RS485 稳流调节失败：控制值必须大于 0");
+            }
+
+            if (!TryWriteSignedRegister(master, slave, request.PumpSettings.MotorControlRegister, rawMotorSpeed, out var writeError))
+            {
+                return Failure($"RS485 稳流调节失败：{writeError}");
+            }
+
+            if (PostCommandVerifyDelayMs > 0)
+            {
+                Thread.Sleep(PostCommandVerifyDelayMs);
+            }
+
+            if (TryReadRegister(master, slave, request.PumpSettings.MotorControlRegister, out var motorCommandReadback, out _)
+                && motorCommandReadback != unchecked((ushort)rawMotorSpeed))
+            {
+                return Failure($"RS485 稳流调节失败：控制寄存器回读 {motorCommandReadback}，目标 {rawMotorSpeed}");
+            }
+
+            ushort? runStatus = null;
+            if (TryReadRegister(master, slave, request.PumpSettings.RunStatusRegister, out var runStatusValue, out _))
+            {
+                runStatus = runStatusValue;
+            }
+
+            return new Rs485PumpFlowOperationResult
+            {
+                Success = true,
+                Message = $"RS485 稳流调节成功，控制值 {rawMotorSpeed}",
+                RunStatus = runStatus,
+                RawForwardSpeed = (ushort)rawMotorSpeed
+            };
+        });
+    }
+
     public Rs485PumpFlowOperationResult StopPump(Rs485PumpFlowRequest request)
     {
         return Execute(request, master =>
diff --git a/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.Rs485.cs b/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.Rs485.cs
index 70e0e48..c7924e9 100644
--- a/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.Rs485.cs
+++ b/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.Rs485.cs
@@ -41,8 +41,12 @@ public partial class MainViewModel
     private const double DefaultRs485RawPerLitrePerMinute = 100d;
     private const double DefaultRs485RawOffset = 0d;
     private const int MaxRs485MotorCommand = short.MaxValue;
+    private const double FlowStabilizationDeadbandLpm = 0.05d;
+    private const int FlowStabilizationMaxRawStep = 5;
+    private const double FlowStabilizationMaxRelativeTrim = 0.20d;
     private const string PressureDropRs485PumpKey = "PressureDropPump";
     private const string KinkResistanceRs485PumpKey = "KinkResistancePump";
+    private static readonly TimeSpan FlowStabilizationAdjustmentInterval = TimeSpan.FromSeconds(2);
     private static readonly string[] HemolysisRs485PumpKeys =
     [
         "HemolysisDrainageSinglePump",
@@ -220,7 +224,7 @@ public partial class MainViewModel
                 RawPerLitrePerMinute = DefaultRs485RawPerLitrePerMinute,
                 RawOffset = DefaultRs485RawOffset,
                 MinFlowLpm = 0,
-                MaxFlowLpm = 7.0
+                MaxFlowLpm = 20.0
             });
         }
 
@@ -249,7 +253,7 @@ public partial class MainViewModel
             ? binding.RawOffset
             : DefaultRs485RawOffset;
         pump.Rs485MinFlowLpm = binding.MinFlowLpm;
-        pump.Rs485MaxFlowLpm = binding.MaxFlowLpm <= 0 ? Math.Max(RatedMaxFlow, 7.0) : binding.MaxFlowLpm;
+        pump.Rs485MaxFlowLpm = binding.MaxFlowLpm <= 0 ? Math.Max(RatedMaxFlow, 20.0) : binding.MaxFlowLpm;
 
         if (string.IsNullOrWhiteSpace(pump.PendingSetpointText))
         {
@@ -552,6 +556,132 @@ public partial class MainViewModel
         }
     }
 
+    private async Task MaintainRs485FlowStabilizationAsync()
+    {
+        var adjustablePumps = ActiveRs485FlowPumpControls
+            .Where(ShouldMaintainFlowStabilization)
+            .OrderBy(item => item.Rs485SlaveAddress)
+            .ToList();
+
+        foreach (var pump in adjustablePumps)
+        {
+            await TryAdjustRs485FlowStabilizationAsync(pump);
+        }
+    }
+
+    private bool ShouldMaintainFlowStabilization(PumpControlChannel pump)
+    {
+        if (!pump.IsFlowStabilizationEnabled)
+        {
+            return false;
+        }
+
+        if (!pump.CanUseFlowStabilization)
+        {
+            pump.FlowStabilizationStatusText = "当前项目要求固定转速";
+            return false;
+        }
+
+        if (pump.IsRs485Busy)
+        {
+            pump.FlowStabilizationStatusText = "等待当前 RS485 操作完成";
+            return false;
+        }
+
+        if (!pump.IsRunning || pump.PendingRs485RunningState == false)
+        {
+            pump.FlowStabilizationStatusText = "等待泵运行";
+            return false;
+        }
+
+        if (!pump.FlowAvailable)
+        {
+            pump.FlowStabilizationStatusText = "等待流量反馈";
+            return false;
+        }
+
+        if (!pump.ConfirmedSetpointAvailable || pump.ConfirmedSetpointFlowValue <= 0)
+        {
+            pump.FlowStabilizationStatusText = "等待确认目标流量";
+            return false;
+        }
+
+        if (DateTime.UtcNow - pump.LastFlowStabilizationAdjustmentUtc < FlowStabilizationAdjustmentInterval)
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    private async Task TryAdjustRs485FlowStabilizationAsync(PumpControlChannel pump)
+    {
+        var targetFlow = pump.ConfirmedSetpointFlowValue;
+        var flowError = targetFlow - pump.FlowValue;
+        if (Math.Abs(flowError) <= FlowStabilizationDeadbandLpm)
+        {
+            pump.FlowStabilizationStatusText = $"稳流保持：目标 {targetFlow:F2} / 当前 {pump.FlowValue:F2} L/min";
+            pump.LastFlowStabilizationAdjustmentUtc = DateTime.UtcNow;
+            return;
+        }
+
+        var targetRaw = pump.ConfirmedRawSetpointValue > 0
+            ? pump.ConfirmedRawSetpointValue
+            : ConvertFlowToRawSpeed(pump, targetFlow);
+        if (targetRaw <= 0)
+        {
+            pump.FlowStabilizationStatusText = "目标流量换算值无效";
+            pump.LastFlowStabilizationAdjustmentUtc = DateTime.UtcNow;
+            return;
+        }
+
+        var currentRaw = pump.FlowStabilizationRawSetpoint > 0
+            ? pump.FlowStabilizationRawSetpoint
+            : pump.RawSetpointValue > 0
+                ? pump.RawSetpointValue
+                : targetRaw;
+        var maxTrim = Math.Max(FlowStabilizationMaxRawStep, (int)Math.Round(targetRaw * FlowStabilizationMaxRelativeTrim, MidpointRounding.AwayFromZero));
+        var minRaw = Math.Max(1, targetRaw - maxTrim);
+        var maxRaw = Math.Min(MaxRs485MotorCommand, targetRaw + maxTrim);
+        var rawStep = Math.Sign(flowError) * FlowStabilizationMaxRawStep;
+        var nextRaw = Math.Clamp(currentRaw + rawStep, minRaw, maxRaw);
+
+        if (nextRaw == currentRaw)
+        {
+            pump.FlowStabilizationStatusText = $"稳流已到调节限幅：目标 {targetFlow:F2} / 当前 {pump.FlowValue:F2} L/min";
+            pump.LastFlowStabilizationAdjustmentUtc = DateTime.UtcNow;
+            return;
+        }
+
+        if (!TryBeginRs485PumpOperation(pump, "稳流调节"))
+        {
+            return;
+        }
+
+        try
+        {
+            var request = BuildRs485Request(pump);
+            var result = await Task.Run(() => _rs485PumpFlowService.WritePumpMotorCommand(request, (short)nextRaw));
+            if (!result.Success)
+            {
+                pump.FlowStabilizationStatusText = result.Message;
+                Rs485StatusText = result.Message;
+                TraceEvents.Insert(0, NewTrace("RS485 稳流调节失败", $"{pump.Name} / {result.Message}"));
+                return;
+            }
+
+            pump.FlowStabilizationRawSetpoint = nextRaw;
+            CacheResolvedRs485Setpoint(pump, nextRaw);
+            ApplyPostCommandPumpState(pump, result, expectedRunning: true);
+            pump.FlowStabilizationStatusText = $"稳流调节：目标 {targetFlow:F2} / 当前 {pump.FlowValue:F2} L/min / 控制值 {nextRaw}";
+        }
+        finally
+        {
+            pump.LastFlowStabilizationAdjustmentUtc = DateTime.UtcNow;
+            EndRs485PumpOperation(pump);
+        }
+    }
+
     private void RaiseRs485CalibrationSummaryChanges()
     {
         OnPropertyChanged(nameof(Rs485EnabledPumpCount));
@@ -1349,6 +1479,7 @@ public partial class MainViewModel
         pump.ConfirmedSetpointAvailable = true;
         pump.ConfirmedRawSetpointValue = rawMotorSpeed;
         pump.ConfirmedSetpointFlowValue = flowLpm;
+        pump.FlowStabilizationRawSetpoint = rawMotorSpeed;
     }
 
     private bool TryBeginRs485PumpOperation(PumpControlChannel pump, string operationName)
diff --git a/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.cs b/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.cs
index 4fe09a0..773e275 100644
--- a/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.cs
+++ b/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.cs
@@ -423,6 +423,8 @@ public partial class MainViewModel : ObservableObject, IDisposable
     public bool HasFilteredItems => !FilteredItemsView.IsEmpty;
     public bool HasManualSupplementItems => !ManualSupplementItemsView.IsEmpty;
     public bool HasSelectedItem => SelectedItem is not null;
+    public InspectionItem? TightnessInspectionItem => InspectionItems.FirstOrDefault(IsTightnessInspectionItem);
+    public bool HasTightnessInspectionItem => TightnessInspectionItem is not null;
     public IEnumerable<DeviceChannel> FlowSensorChannels => Channels.Where(IsFlowSensorChannel);
     public IEnumerable<DeviceChannel> OtherChannels => Channels.Where(channel => !IsFlowSensorChannel(channel));
     public bool IsTelemetryOnline => _isTelemetryOnline;
@@ -544,7 +546,7 @@ public partial class MainViewModel : ObservableObject, IDisposable
     public bool HasItemSearchText => !string.IsNullOrWhiteSpace(ItemSearchText);
     public int RealtimeMonitorCount => InspectionItems.Count(item => item.CaptureMode == InspectionItemCaptureMode.RealtimeMonitor);
     public int RealtimeAssistCount => InspectionItems.Count(item => item.CaptureMode == InspectionItemCaptureMode.RealtimeAssist);
-    public int ManualEntryCount => InspectionItems.Count(item => item.CaptureMode == InspectionItemCaptureMode.ManualEntry);
+    public int ManualEntryCount => InspectionItems.Count(item => item.CaptureMode == InspectionItemCaptureMode.ManualEntry && !IsTightnessInspectionItem(item));
     public string SelectedItemCaptureModeText => SelectedItem?.CaptureModeText ?? "未选择";
     public string SelectedItemMeasurementSource => SelectedItem?.MeasurementSource ?? "-";
     public bool SelectedItemUsesRealtimeValue => SelectedItem?.CaptureMode == InspectionItemCaptureMode.RealtimeMonitor;
@@ -566,6 +568,7 @@ public partial class MainViewModel : ObservableObject, IDisposable
     public string KinkResistanceMandrelDiameterDisplay => $"圆角模板直径：{Math.Max(KinkResistanceOuterDiameter, 0d) * 4d:F1} mm（外径 {KinkResistanceOuterDiameter:F1} mm × 4）";
     public bool IsPressureDropSelected => SelectedItem?.Clause == "4.3.1";
     public string PressureDropSamplingSummary => BuildPressureDropSamplingSummary();
+    public bool IsTightnessSelected => SelectedItem is not null && IsTightnessInspectionItem(SelectedItem);
     public bool IsKinkResistanceSelected => SelectedItem?.Clause == "4.2.3";
     public string KinkResistanceSamplingSummary => BuildKinkResistanceSamplingSummary();
     public bool IsAntiCollapseSelected => SelectedItem?.Clause == "4.3.2";
@@ -692,6 +695,7 @@ public partial class MainViewModel : ObservableObject, IDisposable
         OnPropertyChanged(nameof(SelectedItemUsesRealtimeValue));
         OnPropertyChanged(nameof(IsPressureDropSelected));
         OnPropertyChanged(nameof(PressureDropSamplingSummary));
+        OnPropertyChanged(nameof(IsTightnessSelected));
         OnPropertyChanged(nameof(IsKinkResistanceSelected));
         OnPropertyChanged(nameof(KinkResistanceFlowPointDisplay));
         OnPropertyChanged(nameof(KinkResistanceMandrelDiameterDisplay));
@@ -1408,6 +1412,7 @@ public partial class MainViewModel : ObservableObject, IDisposable
             var snapshot = await Task.Run(_telemetryService.UpdateChannels);
             ApplyTelemetrySnapshot(snapshot);
             await RefreshRs485RuntimeStateSilentlyAsync();
+            await MaintainRs485FlowStabilizationAsync();
             _lastTelemetryRefreshFailureMessage = string.Empty;
             RefreshTelemetryPanel();
             RefreshDeviceStatus();
@@ -1635,7 +1640,8 @@ public partial class MainViewModel : ObservableObject, IDisposable
         var projectCheckItems = FilteredItemsView.Cast<InspectionItem>().ToList();
         var manualSupplementItems = ManualSupplementItemsView.Cast<InspectionItem>().ToList();
         var selectedItemStillVisible = SelectedItem is not null
-            && ((SelectedItem.CaptureMode == InspectionItemCaptureMode.ManualEntry && manualSupplementItems.Contains(SelectedItem))
+            && ((IsTightnessInspectionItem(SelectedItem))
+                || (SelectedItem.CaptureMode == InspectionItemCaptureMode.ManualEntry && manualSupplementItems.Contains(SelectedItem))
                 || (SelectedItem.CaptureMode != InspectionItemCaptureMode.ManualEntry && projectCheckItems.Contains(SelectedItem)));
 
         if (selectedItemStillVisible)
@@ -2132,8 +2138,13 @@ public partial class MainViewModel : ObservableObject, IDisposable
     private bool MatchesManualSupplementItem(object item) =>
         item is InspectionItem inspectionItem
         && inspectionItem.CaptureMode == InspectionItemCaptureMode.ManualEntry
+        && !IsTightnessInspectionItem(inspectionItem)
         && MatchesItemSearch(inspectionItem);
 
+    private static bool IsTightnessInspectionItem(InspectionItem item) =>
+        string.Equals(item.Clause, "4.2.1", StringComparison.Ordinal)
+        && string.Equals(item.Item, "血液通道密合性", StringComparison.Ordinal);
+
     private bool MatchesItemSearch(InspectionItem item)
     {
         if (string.IsNullOrWhiteSpace(ItemSearchText))
diff --git a/Cardiopulmonarybypasssystems/manufacturer-limits.json b/Cardiopulmonarybypasssystems/manufacturer-limits.json
index 34ff8f9..83fd8c2 100644
--- a/Cardiopulmonarybypasssystems/manufacturer-limits.json
+++ b/Cardiopulmonarybypasssystems/manufacturer-limits.json
@@ -37,7 +37,7 @@
       "RawPerLitrePerMinute": 100,
       "RawOffset": 0,
       "MinFlowLpm": 0,
-      "MaxFlowLpm": 7
+      "MaxFlowLpm": 20
     },
     {
       "PumpKey": "RecirculationMainPump",
@@ -54,7 +54,7 @@
       "RawPerLitrePerMinute": 100,
       "RawOffset": 0,
       "MinFlowLpm": 0,
-      "MaxFlowLpm": 7
+      "MaxFlowLpm": 20
     },
     {
       "PumpKey": "RecirculationReturnPump",
@@ -71,7 +71,7 @@
       "RawPerLitrePerMinute": 100,
       "RawOffset": 0,
       "MinFlowLpm": 0,
-      "MaxFlowLpm": 7
+      "MaxFlowLpm": 20
     },
     {
       "PumpKey": "RecirculationDrainagePump",
@@ -88,7 +88,7 @@
       "RawPerLitrePerMinute": 100,
       "RawOffset": 0,
       "MinFlowLpm": 0,
-      "MaxFlowLpm": 7
+      "MaxFlowLpm": 20
     },
     {
       "PumpKey": "KinkResistancePump",
@@ -105,7 +105,7 @@
       "RawPerLitrePerMinute": 100,
       "RawOffset": 0,
       "MinFlowLpm": 0,
-      "MaxFlowLpm": 7
+      "MaxFlowLpm": 20
     },
     {
       "PumpKey": "HemolysisDrainageSinglePump",
@@ -122,7 +122,7 @@
       "RawPerLitrePerMinute": 100,
       "RawOffset": 0,
       "MinFlowLpm": 0,
-      "MaxFlowLpm": 7
+      "MaxFlowLpm": 20
     },
     {
       "PumpKey": "HemolysisReturnSinglePump",
@@ -139,7 +139,7 @@
       "RawPerLitrePerMinute": 100,
       "RawOffset": 0,
       "MinFlowLpm": 0,
-      "MaxFlowLpm": 7
+      "MaxFlowLpm": 20
     },
     {
       "PumpKey": "HemolysisDualLumenPump",
@@ -156,7 +156,7 @@
       "RawPerLitrePerMinute": 100,
       "RawOffset": 0,
       "MinFlowLpm": 0,
-      "MaxFlowLpm": 7
+      "MaxFlowLpm": 20
     }
   ]
-}
\ No newline at end of file
+}