Implantable venous valve

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Including valve

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C623S002120

Reexamination Certificate

active

06958076

ABSTRACT:
A venous valve prosthesis includes a hollow conduit (40) defining a central passageway through which blood may flow. Opposing, pliable leaflet members (30) are located within the conduit and move back and forth between a first, open position, whereby blood may flow through the central passageway in a first direction, and a second, closed position, whereby blood is prevented from backflowing through the central passageway in a second direction which is opposite the first direction. A hollow and generally cylindrical support member (10, 20) retains the leaflet members and is coaxially disposed within the conduit. The support member includes opposing cutaway regions (18) defining two axially extending struts (16) supporting the leaflet members. The cutaway regions, in cooperation with the struts, allow the leaflet members to collapse inwardly to the closed position.

REFERENCES:
patent: 3717883 (1973-02-01), Mosher
patent: 4253201 (1981-03-01), Ross et al.
patent: 4605407 (1986-08-01), Black et al.
patent: 4759758 (1988-07-01), Gabbay
patent: 4759759 (1988-07-01), Walker et al.
patent: 5500014 (1996-03-01), Quijano et al.
patent: 5554185 (1996-09-01), Block et al.
patent: 5562729 (1996-10-01), Purdy et al.
patent: 5824061 (1998-10-01), Quijano et al.
patent: 6029671 (2000-02-01), Stevens et al.
Dalsing et al., “A multicenter, phase I evaluation of cryopreserved venous valve . . . ,” Journal of Vascular Surgery, vol. 30 #5, pp 854-866, (1999).
Kumins et al., “Free tissue transfer provides durable treatment for . . .,” Journal of Vascular Surgery, vol. 32 #5, pp 848-854, (2000).
DeLaria et al., “Hemodynamic evaluation of a bioprosthetic venous prosthesis,” Journal of Vascular Surgery, vol. 18, #4, pp 577-586, (1993).
Hill et al., “Development of a prosthetic venous valve,” Journal of Biomedical Materials Research, vol 19, pp 827-832, (1985).
Taheri et al., “Experimental Prosthetic Vein Valve,” The American Journal of Surgery, vol. 156, pp. 111-114, (1988).
Van Cleef, “A Vein Has a Preferential Axis of Flattening,” Elsevier Science Publishing Co., Inc., Dermatol Surg Oncol 19, pp 468-470, (1993).
Taheri et al., “Experimental Prosthetic Vein Valve . . .,” The Journal of Vascular Diseases, vol. 46, #4, pp. 299-303, (1995).
Bemmelen et al., “The Mechanism of Venous Valve Closure,” Arch Surg, vol. 1225, pp 617-619, (1990).
Reeves et al., “Mechanical characteristics of lyophilized human . . .,” Journal of Vascular Sugery, vol. 26, #5, pp., 823-828, (1997).
Criado et al., “Venous Disease,” Curr Probl Sur., pp. 339-399, (1991).
Burkhart et al., “Experimental repair of venous valvular insufficiency . . .,”Journal of Vascular Surgery, vol. 26, #5, pp 817-822, (1997).
Wang et al., “In vitro performance of venous valve prostheses . . .,” ASAIO J, vol. 38, #3, pp. 213-215, (1992)—Abstract.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Implantable venous valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Implantable venous valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implantable venous valve will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3490664

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.