diff --git a/src/main/java/de/uniluebeck/mi/projmi6/controller/MainController.java b/src/main/java/de/uniluebeck/mi/projmi6/controller/MainController.java
index b10761b..1f9332a 100644
--- a/src/main/java/de/uniluebeck/mi/projmi6/controller/MainController.java
+++ b/src/main/java/de/uniluebeck/mi/projmi6/controller/MainController.java
@@ -5,6 +5,7 @@ import de.uniluebeck.mi.projmi6.model.*;
 import javafx.beans.binding.Bindings;
 import javafx.beans.property.ReadOnlyObjectProperty;
 import javafx.beans.property.SimpleObjectProperty;
+import javafx.beans.value.ChangeListener;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.concurrent.Task;
@@ -16,6 +17,7 @@ import javax.swing.*;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.ThreadFactory;
 
 public class MainController {
 
@@ -144,106 +146,165 @@ public class MainController {
     private Task<List<Fall>> loadFallTask = null;
 
 
+
+    private ChangeListener<Patient> onPatientChanged = (observableValue,oldValue,newValue)-> {
+        lvFall.setItems(null); //clear list
+
+        if(newValue==null){ // If no patient is selected
+            lvFallPlaceholder.setText("Kein Patient ausgew\u00e4hlt!");
+            return;
+        }
+
+        if(loadFallTask!=null && loadFallTask.isRunning()){
+            loadFallTask.cancel();
+        }
+
+
+        loadFallTask = new Task<List<Fall>>() {
+            @Override
+            protected List<Fall> call() throws Exception {
+                return DBHandler.getFaelleByPatID(newValue.getPatID());
+
+            }
+
+            @Override
+            protected void succeeded() {
+                super.succeeded();
+                if(isCancelled()){
+                    System.out.println("Task wurde gecancelt");
+                    return;
+                }
+                lvFallPlaceholder.setText("Keine F\u00e4lle vorhanden!");
+                lvFall.setItems(FXCollections.observableArrayList(getValue()));
+                decreaseParallelTaskCount();
+            }
+
+            @Override
+            protected void cancelled() {
+                super.cancelled();
+                decreaseParallelTaskCount();
+            }
+
+            @Override
+            protected void failed() {
+                super.failed();
+                lvFallPlaceholder.setText("Laden fehlgeschlagen!");
+                lvFall.setItems(null);
+                decreaseParallelTaskCount();
+            }
+        };
+
+        lvFallPlaceholder.setText("Liste wird geladen...");
+        increaseParallelTaskCount();
+        Thread thread = new Thread(loadFallTask);
+        thread.setDaemon(true);
+        thread.start();
+    };
+
     @FXML
     private void initialize(){
+        //Init user data.
         cmbUserChoose.itemsProperty().bind(this.getStammdaten().mitarbeiterProperty());
         cmbUserChoose.getSelectionModel().select(0); // TODO: Bessere Loesung finden.
 
+
+        //Disable the right side if no case is selected.
         fallOverview.disableProperty().bind(patientTablesController.selectedPatientProperty().isNull());
 
+        //Load the cases async if patient changes
+        patientTablesController.selectedPatientProperty().addListener(onPatientChanged);
 
-        patientTablesController.selectedPatientProperty().addListener((observableValue,oldValue,newValue)-> {
-            lvFall.setItems(null); //clear list
 
-            if(newValue==null){ // If no patient is selected
-               lvFallPlaceholder.setText("Kein Patient ausgew\u00e4hlt!");
-               return;
-           }
+        lvFall.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
 
-            if(loadFallTask!=null && loadFallTask.isRunning()){
-                loadFallTask.cancel();
-            }
+        fallController.fallPropertyProperty().bind(lvFall.getSelectionModel().selectedItemProperty());
 
 
-            loadFallTask = new Task<List<Fall>>() {
-                @Override
-                protected List<Fall> call() throws Exception {
-                    return DBHandler.getFaelleByPatID(newValue.getPatID());
 
-                }
 
-                @Override
-                protected void succeeded() {
-                    super.succeeded();
-                    if(isCancelled()){
-                        System.out.println("Task wurde gecancelt");
-                        return;
-                    }
-                    lvFallPlaceholder.setText("Keine F\u00e4lle vorhanden!");
-                    lvFall.setItems(FXCollections.observableArrayList(getValue()));
-                    decreaseParallelTaskCount();
-                }
+        lvFall.getSelectionModel().selectedItemProperty().addListener(onCaseChanged);
+    }
 
-                @Override
-                protected void cancelled() {
-                    super.cancelled();
-                    decreaseParallelTaskCount();
-                }
 
-                @Override
-                protected void failed() {
-                    super.failed();
-                    lvFallPlaceholder.setText("Laden fehlgeschlagen!");
-                    lvFall.setItems(null);
-                    decreaseParallelTaskCount();
-                }
-            };
 
-            lvFallPlaceholder.setText("Liste wird geladen...");
-            increaseParallelTaskCount();
-            Thread thread = new Thread(loadFallTask);
-            thread.setDaemon(true);
-            thread.start();
-        });
+    private Task<Void> loadCaseData = null;
 
 
+    private ChangeListener<Fall> onCaseChanged = (observable, oldValue, newValue) -> {
+
+        if(loadCaseData!=null && loadCaseData.isRunning()){
+            loadCaseData.cancel();
+        }
+
+        tabPaneFall.setDisable(false);
+        tabFallDiagnose.setDisable(true);
+        tabFallStationsHistorie.setDisable(true);
+        tabFallUntersuchungen.setDisable(true);
+
+        if(newValue==null) {
+            tabPaneFall.setDisable(true);
+            System.out.println("TODO: Clear tables cuz fall = null!");
+            //fallController.c
+            return;
+        }
+
+        if(newValue==null){ // If no patient is selected
+            //lvFallPlaceholder.setText("Kein Patient ausgew\u00e4hlt!");
+            return;
+        }
 
-        fallController.fallPropertyProperty().bind(lvFall.getSelectionModel().selectedItemProperty());
 
-        lvFall.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
 
-       /* untersuchungenController.untersuchungenProperty().bind(
-                        Bindings.createObjectBinding(() ->{
-                            Fall selectedFall = lvFall.getSelectionModel().getSelectedItem();
-                            System.out.println("Liste der Untersuchungen ...y");
-                            if(selectedFall==null) return null;
-            List<Untersuchung> untersuchungList = DBHandler.getUntersuchungByFall(selectedFall);
-                            System.out.println("Es sind "+untersuchungList.size()+" Untersuchungen vorhanden.");
-            return  FXCollections.observableArrayList(untersuchungList);
-        }, lvFall.getSelectionModel().selectedIndexProperty()));*/
-
-        lvFall.getSelectionModel().selectedItemProperty().addListener(((observable, oldValue, newValue) -> {
-            System.out.println("Changed choosen Fall");
-
-            if(newValue==null) {
-                System.out.println("TODO: Clear tables cuz fall = null!");
-                return;
+
+        loadCaseData = new Task<Void>() {
+            List<Untersuchung> untersuchungList;
+            List<Diagnose> diagnoseList;
+            List<StationsHistorie> stationsHistorieList;
+            @Override
+            protected Void call() throws Exception {
+                untersuchungList = DBHandler.getUntersuchungByFall(newValue);
+                diagnoseList = DBHandler.getDiagnosenByFall(newValue);
+                //stationsHistorieList =
+                return null;
             }
-            try {
-                List<Untersuchung> untersuchungList = DBHandler.getUntersuchungByFall(newValue);
-                System.out.println("untersuchungenList"+untersuchungList);
-                untersuchungenController.untersuchungenProperty().set(FXCollections.observableArrayList(untersuchungList));
-
-                List<Diagnose> diagnoseList = DBHandler.getDiagnosenByFall(newValue);
-                System.out.println("diagnoseList ="+diagnoseList);
-                diagnoseController.diagnosenProperty().set(FXCollections.observableArrayList(diagnoseList));
-            }catch(Exception e){
-                e.printStackTrace();
+
+            @Override
+            protected void succeeded() {
+                super.succeeded();
+                if(isCancelled()){
+                    System.out.println("Task wurde gecancelt");
+                    return;
+                }
+                untersuchungenController.setUntersuchungen(FXCollections.observableArrayList(untersuchungList));
+                diagnoseController.setDiagnosen(FXCollections.observableArrayList(diagnoseList));
+
+                tabPaneFall.setDisable(false);
+                tabFallDiagnose.setDisable(false);
+                tabFallStationsHistorie.setDisable(false);
+                tabFallUntersuchungen.setDisable(false);
+
+                decreaseParallelTaskCount();
             }
-        }));
-    }
 
+            @Override
+            protected void cancelled() {
+                super.cancelled();
+                decreaseParallelTaskCount();
+            }
 
+            @Override
+            protected void failed() {
+                super.failed();
+                //lvFallPlaceholder.setText("Laden fehlgeschlagen!");
+                getException().printStackTrace();
+                decreaseParallelTaskCount();
+            }
+        };
+        Thread thread = new Thread(loadCaseData);
+        thread.setDaemon(true);
+        thread.start();
+        increaseParallelTaskCount();
+    };
 
 
     @FXML