Softening catheter

Details Softening catheter Softening catheter

A - Human Necessities

61

M

128/93

A61M 25/00 (2006.01) A61L 29/00 (2006.01) A61M 25/06 (2006.01)

Patent

CA 1303446

Abstract Of The Disclosure Softening Catheter A tubular cannula has distal and proximal end portions, a central passageway from the distal end portion of the proximal portion and a transition section connecting the distal and proximal end portions. The proximal end portion has larger inner and outer diameters and has thicker walls than does the distal end portion. The diameter differences and thickness are effectuated in a gradual manner in a transition section. The cannula is constructed of a material that softens on being inserted into a living body and/or contacted with an aqueous medium. The cannula combines kink resistance external of the living body with the advantages of a softening and generally swellable catheter.

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