Dilatation catheter

Details Dilatation catheter Dilatation catheter

A - Human Necessities

61

M

A61M 25/10 (2006.01) A61M 29/02 (2006.01)

Patent

CA 2173482

The invention features a catheter (10) having a stylet (12) that increases columnar strength and axial force transmission ("pushability") of the catheter shaft. This aspect of the invention features the stylet (12) extending distally beyond an exit port (54) which is used in rapid catheter exchange and being embedded in the catheter shaft, there being a stress-transferring relationship between the exterior of the stylet (12) and the substance defining the shaft at least in the vicinity of the exit port (54), the stylet (12) with the embedded relationship increasing the columnar strength of the shaft in the region of the port (54) and increasing the pushability of the catheter (10).

L'invention concerne un cathéter (10) possèdant un stylet (12) augmentant la résistance structurale et la transmission de force axiale (poussée) de la tige du cathéter. Le stylet (12) sort en position distale d'un orifice de sortie (54) utilisé pour remplacer rapidement le cathéter et loge dans la tige du cathéter, un transfert de contrainte s'effectuant entre l'extérieur du stylet (12) et la tige au moins à proximité de l'orifice de sortie (54). Le stylet (12) logeant dans la tige améliore la résistance structurale de cette dernière dans la région de l'orifice (54) et augmente la transmission de force de poussée du cathéter (10).

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