Safety trocar with progressive cutting tip guards and gas jet tissue deflector

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Description

FIG. 1 is a perspective view as seen from the top, front right side, of a safety trocar with progressive cutting tip guards and gas jet tissue deflector showing my design, the bottom, left and front perspective view being a mirror image thereof, wherein the cutting blade is shown in a guarded position;

FIG. 2 is a perspective view as seen from the top, front right side thereof, the bottom, left and front perspective view being a mirror image thereof, wherein the cutting blade is shown in a partially exposed position;

FIG. 3 is a perspective view as seen from the top, front right side thereof, the bottom, left and front perspective view being a mirror image thereof, wherein the cutting blade is shown in a fully exposed position, with the guards retracted; and,

FIG. 4 is a perspective view as seen in FIG. 1, the broken line showing is for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a safety trocar with progressive cutting tip guards and gas jet tissue deflector, as shown and described.

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Patent History
Patent number: D497669
Type: Grant
Filed: Jun 27, 2001
Date of Patent: Oct 26, 2004
Inventor: Ernesto E. Blanco (Belmont, MA)
Primary Examiner: Ian Simmons
Attorney, Agent or Law Firm: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Application Number: 29/144,096
Classifications
Current U.S. Class: Cutting, Abrading, Scraping Or Puncturing (31) (D24/146)
International Classification: 2402;