Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Heart valve – Having rigid or semirigid pivoting occluder
Patent
1985-03-15
1987-05-19
Apley, Richard J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Heart valve
Having rigid or semirigid pivoting occluder
A61F 224
Patent
active
046664424
ABSTRACT:
A cardiac valve prosthesis comprises an annular frame and a valve sleeve with a plurality of valve flaps which are forced apart by the blood passing through the prosthesis in one direction and which are mutually coapted by blood flow in the opposite direction. The frame of the prosthesis includes a rigid or semi-rigid stent constituted by a tubular body with a ring of apertures and with first and second end edges which, in the implanted position of the prosthesis, are respectively upstream and downstream with respect to the direction of flow of the blood through the prosthesis. Biocompatible textile completely covers the rigid stent: the covering has associated suture stitches some of which extend through the apertures of the said ring to attach the covering to the stent itself. The valve sleeve includes two sheets of biological tissue sutured together and wound into a tube, the radially outermost one having a shape which substantially reproduces the shape of the stent of the frame and the radially innermost one whereof, carrying the valve flaps, has a collar end portion which can be turned outwardly of the frame at the first end edge of the stent. The valve sleeve is fixed to the frame by further suture stitches, sone of which extend through the apertures in the ends of the appendages of the frame stent. Other suture stitches connect the end edge of the collar end portion of the radially inner sheet to the covering of biocompatible textile.
REFERENCES:
patent: 4084268 (1978-04-01), Ionescu et al.
patent: 4149277 (1979-04-01), Bokros
patent: 4172295 (1979-10-01), Batten
patent: 4222126 (1980-09-01), Boretos et al.
patent: 4275469 (1981-06-01), Gabbay
patent: 4340977 (1982-07-01), Brownlee et al.
patent: 4388735 (1983-06-01), Ionescu et al.
patent: 4396716 (1983-08-01), Marconi et al.
patent: 4441216 (1984-04-01), Ionescu et al.
patent: 4470157 (1984-09-01), Love
patent: 4477930 (1984-10-01), Totten et al.
patent: 4501030 (1985-02-01), Lane
Arru Piero
Bona Gioachino
Curcio Maria
Vallana Franco
Apley Richard J.
Cannon Alan W.
Sorin Biomedica S.p.A.
LandOfFree
Cardiac valve prosthesis with valve flaps of biological tissue does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cardiac valve prosthesis with valve flaps of biological tissue, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cardiac valve prosthesis with valve flaps of biological tissue will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1561827