Vascular tunneler

Description

FIG. 1 is a top plan view of a vascular tunneler in a fully assembled condition, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is an end elevation as seen in the direction of line 3--3 of FIG. 1;

FIG. 4 is a longitudinal cross-sectional view taken on line 4--4 of FIG. 3;

FIG. 5 is a top plan view of the outer casing of the instrument, shown separately for clarity of illustration; and

FIG. 6 is a top plan view of the inner portion of the instrument shown separately for clarity of illustration.

Referenced Cited
U.S. Patent Documents
D235173 May 1975 Boone
D241278 August 1976 McNeil et al.
D245451 August 16, 1977 Wortley
D248969 August 15, 1978 Hodge
2856934 October 1958 Petillo
3385300 May 1968 Holter
3999551 December 28, 1976 Spitz et al.
4134405 January 16, 1979 Smit
4252131 February 24, 1981 Hon
4315509 February 16, 1982 Smit
Patent History
Patent number: D275519
Type: Grant
Filed: Jun 29, 1983
Date of Patent: Sep 11, 1984
Inventor: Hisham I. Ismail (Heliopolis, Cairo)
Primary Examiner: Bernard Ansher
Law Firm: Reising, Ethington, Barnard, Perry & Milton
Application Number: 6/509,060
Classifications
Current U.S. Class: D24/54; D24/99