Drug delivery balloon catheter device

Details Drug delivery balloon catheter device Drug delivery balloon catheter device

A - Human Necessities

61

M

A61M 29/00 (2006.01) A61M 25/10 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2277770

This invention is a medical device for delivering a drug internally to a patient's body. The medical device includes a catheter (4) with a catheter shaft (5) and a balloon (6) attached to a distal end of the catheter shaft (5), and a flexible, thin-walled sheath (10) extending over the balloon (6). The sheath (10) includes a balloon enveloping portion (12) having an inner diameter sized to fit closely around the balloon (6) and a collar (14) distal to, and having an inner diameter slightly smaller than the inner diameter of the balloon enveloping portion (12). The collar (14) terminates in an opening, and a tab (22) extends distally from a wall of the sheath (10).

Cette invention concerne un dispositif médical qui permet d'administrer un médicament à l'intérieur du corps d'un patient. Ce dispositif médical comprend un cathéter (4) qui possède un arbre (5) ainsi qu'un ballonnet (6) fixé à l'extrémité distale de cet arbre (5). Ce dispositif comprend également un fourreau flexible et à paroi fine (10) qui recouvre le ballonnet (6). Ce fourreau (10) comprend une partie (12) enveloppant le ballonnet qui possède un diamètre interne lui permettant d'enserrer étroitement ledit ballonnet (6). Le fourreau comprend également un col (14) qui se trouve en position distale par rapport à la partie (12) enveloppant le ballonnet, et qui possède un diamètre interne légèrement inférieur au diamètre interne de ladite partie (12). Le col (14) se termine en une ouverture, tandis qu'une languette (22) dépasse de manière distale d'une paroi du fourreau (10).

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