SINGLE-PASS ENDOSCOPIC VESSEL HARVESTING

摘要

An endoscopic harvesting device removes a vessel from a body. The vessel has an anterior side closest to the skin. A sheath extends in a longitudinal direction with a dissector tip for advancing along the vessel substantially along the anterior side to create a flanking tunnel spaced away from the vessel. A ring-shaped blade is mounted to the sheath and is disposed in a plane substantially perpendicular to the longitudinal direction and proximal of the dissector tip. The blade forms a lateral loop to encircle the vessel from the flanking tunnel. The blade comprises an inductively-heated ferromagnetic member configured to make a vasiform cut including a pedicle around the vessel as the sheath advances.

主权项

1. Apparatus for endoscopic harvesting of a vessel from a body, wherein the vessel has an anterior side closest to a skin of the body, comprising:
a sheath extending in a longitudinal direction with a dissector tip for advancing along the vessel substantially along the anterior side to create a flanking tunnel spaced away from the vessel; and a ring-shaped blade mounted to the sheath and disposed in a plane substantially perpendicular to the longitudinal direction and proximal of the dissector tip, wherein the blade forms a lateral loop to encircle the vessel from the flanking tunnel, and wherein the blade comprises an inductively-heated ferromagnetic member configured to make a vasiform cut including a pedicle around the vessel as the sheath advances.