Title: Heart valve prosthesis and method for the production thereof

Abstract: A flexible non-stented heart valve prosthesis made from a flat piece of a stabilized biological membrane. The membrane is folded along one or more folding lines and attached to a flat flexible non-biological base material so that one or more leaflets are formed. Preferably the membrane is pericardium and is attached by machine stitching to a woven polymeric base material. Different valve types including ventricular outflow patches and three-leaflet valves such as aortic valves and methods for their production are described. The aortic valve is preferably made from three separate leaflets provided with narrow base materials serving as attachment margins which are stitched together in a manner to form a three-leaflet valve.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Rygg, Inge H. (Charlottenlund, DK)

Application Number: 907580
Filing Date: 1978-05-19
Publication_date: 1980-08-26
Assignee: Biocoating Anpartsselskab (Copenhagen, DK)
Primary Class(es): 623/2.15
Other Classes:
US Patent Ref:

3320972	May, 1967	High et al.	3/1.
3548418	Dec, 1970	Angell et al.	3/1.
3744062	Jul, 1973	Parsonnet	3/1.
3755823	Sep, 1973	Hancock	3/1.
3974526	Aug, 1976	Dardik et al.	3/1.
3983581	Oct, 1976	Angell et al.	3/1.
3988782	Nov, 1976	Dardik et al.	3/1.

Other Refs: 492279

Jan, 1976	SU

Other References: "Fascia Lata Replacement of Aortic Valves", by Ake Senning et al., The Journal of Thoracic and Cardiovascular Surgery, vol. 54, No. 4, Oct. 1967, pp. 465-470.
"The Autologous Rectus Sheath Cardiac Valve", by C. L. Athanasuleas et al., The Journal of Thoracic & Cardiovascular Surgery, vol. 65, No. 1, Jan. 1973, pp. 118-123.