Training model for endoscopic vessel harvesting
AssigneeEthicon, Inc.
InventorsParris S. Wellman, William McJames, Daniel Gordon
Life of this patent
Estimating the term…
Abstract
A leg model, designed to teach endoscopic saphenous vein harvesting, is provided that accurately models the anatomy of the saphenous vein in the human thigh, and closely approximates the subcutaneous tissues in a human. The subcutaneous tissue is formulated and manufactured such that the saphenous vein adheres to the subcutaneous tissue to simulate the adhesion in a human leg. The model includes a reusable base and a replaceable single use insert. The base is size and configured to receive the insert. The tray can include a slit located at a point along its length that permits the ends of the tray to rotate about the slit so that the ends can be bent with respect to one another.
Claims17
A training model for endoscopic vein harvesting, comprising:
- a reusable base;
- and
- a disposable insert sized and configured to be at least partly disposed within the reusable base, the insert comprising:
- a tray;
- a tissue material disposed within the tray, the tissue material comprising a material having qualities that simulate subcutaneous tissue;
- and
- a vein casting disposed within the material.
A training model for endoscopic vein harvesting, comprising:
- an insert including a tray having a first end and a second end and a slit at a location between the first end and the second end;
- and
- a base, the base configured to cause the first end and the second end to rotate with respect to one another when the tray contacts the base.
A method of manufacturing an endoscopic vein harvesting model, comprising the steps of:
- manufacturing an insert by:
- casting a vein casting;
- pouring a first layer of castable room temperature vulcanizable silicone into a tray;
- placing the vein casting in contact with the first layer while the first layer is still wet;
- applying tension to the vein casting to properly position the vein within the first layer;
- and
- pouring a second layer of castable room temperature vulcanizable silicone into the tray to cover the vein casting.
Dependencies are inferred from the claim text.