Rey Pierre (Thorigny FRX) Leandri Jacqueline (Paris FRX) Abbou Clment (Fontenay-sous-Bois FRX)
출원인 / 주소
Agence National de Valorisation de la Recherche (ANVAR) (Seine FRX 07)
인용정보
피인용 횟수 :
76인용 특허 :
2
초록▼
Organ prostheses are manufactured starting from a support preformed in the shape of the prosthesis to be formed on which a sol giving on cooling a gel enabling a surface state approximating to that of a liquid-air interface is deposited, a hardenable flexible material compatible with body tissues is
Organ prostheses are manufactured starting from a support preformed in the shape of the prosthesis to be formed on which a sol giving on cooling a gel enabling a surface state approximating to that of a liquid-air interface is deposited, a hardenable flexible material compatible with body tissues is deposited thereon and the prosthesis removed from the mould. Ureter, bladder, vascular and cardiac prostheses made by this method are disclosed.
대표청구항▼
An organ prosthesis, having an internal surface adapted to be in contact with body fluids, formed of a flexible material having an internal surface state devoid of roughness, whereby formation of concretions and deposits, fibrinous coagulum and calculi or lithiasis, during use of the organ prosthesi
An organ prosthesis, having an internal surface adapted to be in contact with body fluids, formed of a flexible material having an internal surface state devoid of roughness, whereby formation of concretions and deposits, fibrinous coagulum and calculi or lithiasis, during use of the organ prosthesis, due to the roughness, is avoided, and obtained by molding, said organ prosthesis being formed by forming, on a preformed support in the shape of the prosthesis, a coating of a sol selected from the group consisting of gelose and gelatin giving, on cooling, a gel having a surface state approximately the same as the liquid-air interface of gelose or gelatin in solution at its surface not adjacent the support, said coating being formed by dipping, spraying, coating, varnishing or lacquering the sol on the support, forming said gel from said sol, then forming a hardenable flexible material coating of silicon elastomer compatible with the body liquids and tissues on the gel, the flexible material coating being formed by dipping, flowing or spraying, the flexible material coating taking the shape of the preformed support in the shape of the prosthesis, then hardening the hardenable flexible material, the hardened flexible material having a surface state adjacent said gel that is devoid of roughness, and separating the hardened flexible material and the preformed support, the hardened flexible material being the organ prosthesis, wherein the preformed support is in the shape of a ureter prosthesis, a urethra prosthesis, a vascular prosthesis, a valvular prosthesis, a cardiac prosthesis, or a bladder prosthesis, whereby the organ prosthesis of the hardened flexible material is, respectively, a ureter prosethesis, a urethra prosthesis, a vascular prosthesis, a valvular prosthesis, a cardiac prosthesis or a bladder prosthesis.
Fletcher James C. Administrator of the National Aeronautics and Space Administration ; with respect to an invention of ( La Crescenta CA) Broyles Howard F. (La Crescenta CA) Moacanin Jovan (Los Angel, Method of making hollow elastomeric bodies.
Schreck, Stefan; Tzeng, Elbert; Abraham, Todd; Phan, Jonathan; Benjamin, Joshua; Macias, Jacqueline; Chu, Kevin; Gould, William L., Catheter system and methods of using same.
Burton John H. (Minnetonka MN) Berg Eric P. (Woodbury MN) Staehle Bradford G. (Minnetonka MN) Scott Frank B. (Houston TX), Method for valving body fluids.
Griffith Donald P. (5696 Longmont Houston TX 77056) Homsy Charles A. (11562 Raintree Houston TX 77024), Prosthetic bladder and method of prosthesis implantation.
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