fix: missing conduction system for biventricle models (#1231)

Co-authored-by: pyansys-ci-bot <[email protected]>

Author: mhoeijm

doc/source/changelog/1231.fixed.md

@@ -0,0 +1 @@
+Missing conduction system for biventricle models

src/ansys/health/heart/models_utils.py

@@ -271,15 +271,15 @@ def define_fascile_bundle_end_node(
 
 
 def define_full_conduction_system(
-    model: models.FullHeart | models.FourChamber,
+    model: models.FullHeart | models.FourChamber | models.BiVentricle,
     purkinje_folder: str,
     landmarks: LandMarks = None,
 ) -> tuple[list[ConductionPath], LandMarks]:
     """Define the full conduction system.
 
     Parameters
     ----------
-    model : models.FullHeart | models.FourChamber
+    model : models.FullHeart | models.FourChamber | models.BiVentricle
         Heart model.
     purkinje_folder : str
         Folder with LS-DYNA's Purkinje generation.
@@ -310,6 +310,10 @@ def define_full_conduction_system(
         model=model,
     )
 
+    if isinstance(model, models.BiVentricle):
+        return [left_purkinje, right_purkinje], landmarks
+
+    # Define other parts of the conduction system
     sa = define_sino_atrial_node(model, landmarks)
     av = define_atrio_ventricular_node(model, landmarks)
 

src/ansys/health/heart/simulator.py

@@ -516,7 +516,7 @@ def compute_purkinje(self):
 
     def compute_conduction_system(self):
         """Compute the conduction system."""
-        if isinstance(self.model, models.FourChamber):
+        if isinstance(self.model, (models.FourChamber, models.BiVentricle)):
             # TODO: refinement is not correctly used
             # beam_length = self.settings.purkinje.edgelen.m