Rotatable catheter assembly

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/06 (2006.01)

Patent

CA 2556627

A catheter assembly comprises a catheter shaft (12, 14), a balloon (16) and a pair of collars (30, 32). The collars may be fixed or rotatable about a catheter shaft prior to exposure to an electric current. Where the collars are fixed to the shaft, the balloon is rotatable about the collars. When exposed to the electric current the collars expand to engage the waists of the balloon thereby sealing the balloon. Where the collars are rotatable about the shaft, the each waist of the balloon is engaged to a respective collars. When the rotatable collars are exposed to the electric current the collars expand to engage the shaft of the catheter thereby sealing the balloon.

L'invention se rapporte à un ensemble cathéter, qui comprend une tige de cathéter (12, 14), un ballonnet (16) et une paire de brides (30, 32). Les brides peuvent être fixes ou rotatives autour de la tige du cathéter, avant d'être exposées à un courant électrique. Lorsque les brides sont fixées sur la tige, le ballonnet peut effectuer une rotation autour des brides. Lorsqu'elles sont exposées au courant électrique, les brides s'élargissent pour venir serrer la circonférence du ballonnet, formant ainsi un joint étanche autour du ballonnet. Lorsque les brides sont rotatives autour de la tige, une bride correspondante vient serrer la circonférence du ballonnet. Lorsque les brides rotatives sont exposées au courant électrique, elles s'élargissent pour venir serrer la tige du cathéter, formant ainsi un joint d'étanchéité autour du ballonnet.

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