Gastric ring made of variable hardness elastomeric material

Details Gastric ring made of variable hardness elastomeric material Gastric ring made of variable hardness elastomeric material

A - Human Necessities

61

B

A61B 17/12 (2006.01) A61F 5/00 (2006.01) B22C 9/24 (2006.01) B29C 45/16 (2006.01)

Patent

CA 2472425

The invention concerns a gastric ring (1) consisting of a flexible strip designed to be closed by closure means around a patient's stomach, said strip comprising an annular compression chamber (7) connected by a catheter (9) to a device for adjusting the diameter of the said chamber by fluid injection or withdrawal, said chamber comprising a dorsal reinforcement (12) extended by lateral walls (13), the dorsal reinforcement (12) being made from a first elastomeric material having a predetermined Shore A hardness d1 and the lateral walls (13) being made of a second elastomeric material of the same type as the first material but with predetermined Shore A hardness d2, such that d2<d1, so as to obtain a single-piece annular chamber (7) of variable Shore A hardness in its thickness. The invention is useful device for treating obesity.

L'invention concerne un anneau de gastroplastie (1) formé par une bande souple destinée à être fermée par des moyens de fermeture autour de l'estomac d'un patient, ladite bande comportant une chambre de compression annulaire (7) reliée par un cathéter (9) à un dispositif de réglage du diamètre de ladite chambre par injection ou retrait de fluide, ladite chambre comprenant un renfort dorsal (12) prolongé par des parois latérales (13), le renfort dorsal (12) est réalisé à partir d'un premier matériau élastomère de dureté Shore A, prédéterminée d1, et Les parois latérales (13) réalisées à partir d'un second matériau élastomère de même nature que le premier matériau mais de dureté Shore A prédéterminée d2, telle que d2 < d1, de manière à obtenir une chambre annulaire (7) monobloc de dureté Shore A variable dans son épaisseur. Dispositif de traitement de l'obésité.

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