A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/24 (2006.01)
Patent
CA 2360559
This invention is a pre-trimmed, cryo-preserved homografts and other non-stent bio-prosthetic heart valves having natural tissue sewing rings (14A) formed thereon. The sewing ring (14A) may be formed of a strip of pericardium or other suitable tissue. Material may be captured between the natural tissue sewing ring, and a sub-valvular lip formed on the valve to impart a desired size or shape to the sewing ring. In the case of cryo-preserved embodiments of the invention (e.g., cryo-preserved human homografts) the sewing ring (14A) is attached to the valve by way of a natural tissue suture (34), biological glue or other attachment component that is capable of undergoing cryo-preservation without breaking, excessive weakening, or other changes that prevent it from performing its attachment function.
Cette invention concerne des allogreffes pré-préparées, cryoconservées et autres valvules cardiaques bioprothésiques sans stent comportant des anneaux de suture (14A). L'anneau de suture (14A) peut être constitué par une bande de péricarde ou autre tissu convenable. Le matériau peut être retenu entre l'anneau de suture en tissu naturel et l'on peut former une lèvre subvalvulaire sur la valvule pour donner la taille ou la forme requise à l'anneau de suture. Dans le cas des allogreffes cryoconservées selon l'invention, l'anneau de suture (14A) est fixé sur la valvule au moyen d'une suture tissulaire naturelle (34), de colle biologique ou autre élément de fixation capable se supporter une cryoconservation sans risques de rupture, d'affaiblissement excessif ou de changement empêchant l'anneau de remplir sa fonction.
Gowling Lafleur Henderson Llp
The Brigham & Women's Hospital Inc.
LandOfFree
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