Laparoscopic access tool with gas seal

Details Laparoscopic access tool with gas seal Laparoscopic access tool with gas seal

A - Human Necessities

61

B

A61B 17/34 (2006.01) A61B 17/29 (2006.01) A61L 29/08 (2006.01)

Patent

CA 2397118

A laparoscopic access apparatus (10) enabling the removal of tissue (T) or other debris from a surgical site. A catheter (12) having a longitudinal access is provided with a flexible internal sleeve (20) having distal (28) and proximal (22) ends. The sleeve (20) forms an inner channel (32) through which laparoscopic surgical instruments (16) may be passed. The sleeve (20) is mounted with axial tautness along one side (34) of the catheter (12), it is provided with a loose, baggy portion elsewhere in the catheter (12) defining an inflatable cavity (36) between the catheter (12) and sleeve (20). A gas port (38) is positioned to enable gas under pressure from a body cavity to enter the inflatable cavity (36) adjacent the distal end thereof to thereby collapse the sleeve and seal the channel (32). Image

L'invention concerne un dispositif d'accès (10) pour laparoscopie permettant de retirer un tissu (T) ou tout autre débris d'un site chirurgical. Ce dispositif comprend un cathéter (12) possédant un accès longitudinal et comprenant un manchon interne flexible (20) possédant une extrémité distale (28) et proximale (22). Ce manchon (20) forme un canal interne (32) à travers lequel des instruments chirurgicaux (16) pour laparoscopie peuvent être introduits. Ce manchon (20), monté axialement de façon tendue le long d'un côté (34) du cathéter (12), comprend une partie flottante, mobile, dans une autre partie du cathéter (12), définissant une cavité gonflable (36) située entre le cathéter (12) et le manchon (20). Un orifice de gaz (38) est placé de façon à permettre au gaz sous pression provenant d'une cavité corporelle d'entrer dans la cavité gonflable (36) adjacente à l'extrémité distale du cathéter (12) afin de comprimer le manchon et d'étanchéiser le canal (32).

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