Medical device with enhanced cooling power

Details Medical device with enhanced cooling power Medical device with enhanced cooling power

A - Human Necessities

61

B

A61B 18/02 (2006.01)

Patent

CA 2438844

The present invention provides a medical device to cold treat desired regions. An injection tube with an open distal end, and at least one aperture proximate thereto is disposed inside of a cooling tube, defining a cooling lumen therebetween. A third outer tube member is disposed around the second cooling member, defining a return lumen therebetween. A supply of fluid, regulated by a controller mechanism coupled to the device, flows through the injection lumen, the apertures and the cooling lumen to insulate and cool the fluid supplied into the injection lumen. The supplied fluid flows through the injection lumen and its distal end into the return lumen to cool the surrounding areas external to and proximate the distal end of the device.

L'invention concerne un dispositif médical conçu pour traiter à froid des régions déterminées. Un tube d'injection ayant une extrémité distale ouverte et, à proximité, au moins un orifice, est posé à l'intérieur d'un tube de refroidissement, y définissant une lumière. Un troisième élément tube est disposé autour du second élément de refroidissement, y définissant une lumière de retour. Une alimentation en liquide, régulée par un mécanisme de régulation couplé au dispositif, traverse la lumière d'injection, les orifices et la lumière de refroidissement afin d'isoler et de refroidir liquide alimentant la lumière d'injection. Ledit liquide traverse la lumière d'injection et son extrémité distale et s'écoule dans la lumière de retour pour refroidir les zones environnantes extérieures et à proximité de l'extrémité distale du dispositif.

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