1. Double Sides Retraction 2) Apply to epigastrium incision below costal margin and vertical hypogastrium incision: Gastrectomy, Liver Transplantation, Biliary Surgery, Splenectomy, Proximal Gastrectomy, Esophagus Tumor resection, etc.

1. Single Side Retraction 2) Apply to Paediatrics 3) Components ( Small lever,big hook plate)

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1. Single Side Retraction 2) Apply to epigastrium incision below costal margin and vertical hypogastrium incision: Gastrectomy, Liver Transplantation, Biliary Surgery, Splenectomy, Proximal Gastrectomy, Esophagus Tumor resection, etc. To enable screen reader support, press ⌘+Option+Z To learn about keyboard shortcuts, press ⌘slash

2. Single Side Retraction 2) Apply to epigastrium incision below costal margin and vertical hypogastrium incision: Gastrectomy, Liver Transplantation, Biliary Surgery, Splenectomy, Proximal Gastrectomy, Esophagus Tumor resection, etc. Turn on screen reader support

1. Single Side Retraction 2) Apply to neck and back skin muscle flat incision: Thyroid surgery, Spinal Operation, etc.