Medical graft and construction of the same

Details Medical graft and construction of the same Medical graft and construction of the same

1997-12-19

2000-11-14

Milano, Michael J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Stent structure

A61F 200

Patent

active

061464147

ABSTRACT:
A bio-compatible graft for use in a patient. The graft contains a plurality of expanded regions which provide greater access to the graft and additional area within which to cannulate the patient with a needle, as for dialysis treatment. The expanded regions will provide greater graft lifetime and increase the target area available for cannulation. Additionally shields are provided at a posterior aspect of each of the regions. The shields serve as a indicator to an operator that further cannulation of the needle into the patient will cause the needle to protrude through the posterior wall of the graft. This indication is had by the excess force necessary to push the needle into the shield once the shield is contacted by the needle tip.

REFERENCES:
patent: 3648295 (1972-03-01), Palma
patent: 5700287 (1997-12-01), Myers
patent: 5713859 (1998-02-01), Finch
patent: 5769882 (1998-06-01), Fogarty
patent: 5800514 (1998-09-01), Nunez
A Study of Patency and Durability of IMPRA Carbon-Coated Synthetic Prostheses in Dogs, C. R. Bard, United States, (2 pages).
Bleedless Coup--Brochure which demonstrates vascular grafts, Jun. 1996, W. L. Gore, United States, (7 pages).
IMPRA Carboflex--Brochure demonstrating stepped grafts, 1996, C. R. Bard, United States, (29 pages).
Lifespan Cross Reference List, Sep. 1996, Baxter, United States, (11 pages).
Clinical Summary for IMPRA Grafts, C. R. Bard, United States, (3 pages).
Modified PTFE Grafts, Oct. 1992, Tsuchida et al., United States, (8 pages).

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