Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Method of manufacturing prosthetic device
Reexamination Certificate
2002-10-10
2004-03-23
Worrell, Danny (Department: 3765)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Method of manufacturing prosthetic device
C623S001460, C139S38700A
Reexamination Certificate
active
06709467
ABSTRACT:
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates to a medical technique; it can be used in the reconstructive surgery in cases where the circulatory system has congenital anomalies or it suffers from atherosclerosis, injuries or any other detriment.
There exists a flexible blood vessel prosthesis (LV patent No. 12175), consisting of polyester and polyurethan yarns with a lining of velour type crimps on its walls. The said prosthesis represents the following disadvantages:
after implantation the structure of the prosthesis cannot prevent blood leakage through it;
the ends of the prosthesis ravel easily; it makes it difficult to suture the prosthesis to the natural blood vessel.
SUMMARY OF THE INVENTION
The goal of the present invention is to produce an arterial prosthesis that easily modulates when a continues blood flow is pumped through it at a definite pressure and speed. The new prosthesis should exclude blood leakage through its walls, and its ends should be easily attachable to natural blood vessels.
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patent: 4784659 (1988-11-01), Fleckenstein
patent: 4816028 (1989-03-01), Kapadia et al.
patent: 4892539 (1990-01-01), Koch
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patent: 5800514 (1998-09-01), Nunez et al.
patent: 5904714 (1999-05-01), Nunez et al.
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patent: 0 464 755 (1992-01-01), None
patent: 2 153 685 (1985-08-01), None
patent: 12175 (1998-12-01), None
patent: WO 92/03107 (1992-03-01), None
Kantsevitcha Viktoria
Masteiko Eriks
Ribickis Leonids
Abrahams Colin P.
Worrell Danny
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