Improved medical device shaft designs

Details Improved medical device shaft designs Improved medical device shaft designs

A - Human Necessities

61

M

A61M 25/01 (2006.01)

Patent

CA 2645012

Devices and methods for transferring forces down a catheter shaft while also maintaining an open fluid pathway are disclosed. In some of the designs, inner and outer members of the catheter interact, allowing improved transfer of forces down the catheter shaft. These designs also allow for maintenance of a fluid pathway along the length of the shaft, including at locations where the inner and outer members are interacting with one another. Structures are disclosed which extend at least a portion of the length of the shaft, allowing improved force transfer and resistance to kinking. Structures are also disclosed which specifically allow for inner and outer members to engage one another at at least one point along the shaft, improving the transfer of forces down the shaft.

Dispositifs et procédés pour transférer des forces sur un arbre de cathéter tout en maintenant un chemin de fluide ouvert. Dans certaines conceptions, des éléments intérieurs et extérieurs du cathéter interagissent, permettant un transfert amélioré des forces sur l'arbre de cathéter. Ces conceptions permettent aussi de maintenir un chemin de fluide le long de la longueur de l'arbre, y compris aux endroits auxquels les éléments intérieurs et extérieurs interagissent les uns avec les autres. L'invention concerne des structures qui s'étendent au moins sur une partie de la longueur de l'arbre, permettant un transfert de forces et une résistance à la torsion améliorés. L'invention concerne également des structures qui permettent spécifiquement aux éléments intérieurs et extérieurs de s'engager les uns avec les autres au moins en un point le long de l'arbre, améliorant ainsi le transfert de forces sur l'arbre.

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