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US 6,042,538 AGranted
Device for endoscopic vessel harvesting
AssigneeEmory University
InventorJohn D. Puskas
Life of this patent
Estimating the term…
Abstract
A endoscopic device provides improvements in the endoscopic working space by the use of a semi-tubular hood with an arched top wall and self-supporting walls that allow simultaneous manipulations of dissection, cutting, ligation, and retraction, and the like, without requiring constant application of external force; while enhancing visualization and reducing the need for cleaning the endoscopic lens.
Claims20
An endoscopic device, comprising:
- a. a shaft having a lumen therethrough for receiving an endoscope;
- b. a semi-tubular hood having an arched top wall connected to the shaft and self-supporting side walls extending from the arched top wall, wherein the semi-tubular hood permits the separation of layers of tissue during dissection and maintains a generous working space capable of receiving at least one additional surgical instrument therein, and, wherein the shaft is exterior to the top and working space of the semi-tubular hood, thereby not impinging on the working space within the semi-tubular hood;
- and,
- c. a concave head connected to a distal end of the semi-tubular hood, the head having a spoon-shape and defining a cavity thereunder.
1 more element
An endoscopic device, comprising:
- a. a shaft having a lumen therethrough for receiving an endoscope;
- b. a semi-tubular hood having an arched top wall connected to the shaft and self-supporting side walls extending from the arched top wall, wherein the semi-tubular hood permits the separation of layers of tissue during dissection and maintains a generous working space capable of receiving at least one additional surgical instrument therein;
- and,
- c. a concave head connected to a distal end of the semi-tubular hood, the head having a spoon-shape and defining a cavity thereunder, and wherein the spoon-shaped head has an indentation at its leading edge to accommodate a vessel to be harvested.
1 more element
Dependencies are inferred from the claim text.