Catheter based surgery

Details Catheter based surgery Catheter based surgery

A - Human Necessities

61

B

A61B 17/22 (2006.01) A61B 5/06 (2006.01) A61B 17/00 (2006.01) A61B 18/24 (2006.01) A61N 7/00 (2006.01) A61B 8/12 (2006.01)

Patent

CA 2246332

A method of excavating tissue in the body, including bringing a catheter (60) to a location, injecting microbubbles (84) at the location and causing cavitation of tissue (76) at the location using ultrasound. Preferably, the microbubbles (84) are injected directly into the tissue, such as by using a hollow needle (62). Alternatively, microbubbles (84) are injected into the vascular bed of the tissue at the location, so that the capillaries (86) are infused with microbubbles (84).

Cette invention concerne un procédé de creusement de tissus dans le corps, lequel procédé consiste à amener un cathéter (60) en un endroit donné du corps, puis à injecter des micro-bulles (84) à cet endroit de manière entraîner une cavitation des tissus (76) par ultrasons. Les micro-bulles (84) sont de préférence injectées directement dans le tissu en utilisant, par exemple, une aiguille creuse (62). Dans un autre mode de réalisation, les micro-bulles (84) sont injectées dans le lit vasculaire du tissu à l'endroit donné, ceci de manière à pouvoir infuser lesdites micro-bulles (84) dans les capillaires (86).

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