Cardiac valve prosthesis

Details Cardiac valve prosthesis Cardiac valve prosthesis

A - Human Necessities

61

F

3/117

A61F 2/24 (2006.01)

Patent

CA 1301409

ABSTRACT Cardiac Valve Prosthesis It is a disadvantage of the known biscuspid valve prostheses that, in completely open position, the flow separates either at the leading edge of the closing body or within the range of a nozzle confined by the closing body surfaces. The resultant jet randomly reattaches again to one of the closing bodies, while, behind the other closing body, an extensive wake-flow is formed together with strongly fluctuating vortices. Said condition may change with each beating cycle. The opening behaviour of both closing bodies becomes unequal due to the different pressure distribution. As a result, extensive deadwater areas and damage of the blood may be observed. Said disadvantages are avoided by the invention in that each closing body (12) has a skeleton line which is circularly curved in the area of the swivel axis (13). The curved area is followed by a rectilinear area thus causing a linear cross sectional enlargement in the outlet region of the passage formed by the closing bodies. The opening and closing behaviour of the cardiac valve becomes more stable, deadwater areas and vortex formation are avoided to a far extent and the natural blood flow is hardly deviated. (Fig. 1).

556963

Affiliated with

Also associated with

Rating

Cardiac valve prosthesis 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, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cardiac valve prosthesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1338882