Catheter having an improved torque transmitting shaft

Details Catheter having an improved torque transmitting shaft Catheter having an improved torque transmitting shaft

A - Human Necessities

61

M

A61M 25/00 (2006.01)

Patent

CA 2469062

The present invention relates generally to a catheter having a torque transmitting shaft which retains adequate flexibility. The catheter includes an elongate shaft (12) having an outer surface (20). In a preferred embodiment, a raised pattern (24) is disposed on the outer surface (20). Preferably, the raised pattern (24) improves the transmission of torque along the elongate shaft by including a series of bearing points (26) which contact other bearing points along the shaft when torqued.

D'une manière générale, l'invention concerne un cathéter comprenant une tige de transmission de couple qui présente une souplesse appropriée. Ce cathéter comprend une tige allongée (12) pourvue d'une surface extérieure (20). Dans un mode de réalisation préféré, cette surface extérieure (20) comporte un dessin en relief (24). De préférence, ce dessin en relief (24) améliore la transmission du couple le long de la tige allongée grâce à une série de points de support (26) qui viennent en contact avec d'autres points de support le long de la tige lorsque le couple leur est appliqué.

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