Ureteral stent

Details Ureteral stent Ureteral stent

1990-01-10

1990-08-21

Hafer, Robert A.

Surgery

Devices transferring fluids from within one area of body to...

604281, 604 54, A61M 2500

Patent

active

049502280

ABSTRACT:
A ureteral stent includes a tubular member of substantially uniform outside diameter, the tubular member having proximal and distal ends connected by a body portion, the proximal end including a retention curve to retain the proximal end in the bladder, and the distal end having three portions, the first portion extending from the stent body and being substantially straight, the second portion extending from the first portion and being in the shape of a 360.degree. helical curve having an outside radius, and the third portion extending from the second portion and terminating in a distal tip, the third portion being substantially straight and parallel to the first portion and having a length between 1.2 and 2.0 times the outside radius of the helical curl.

REFERENCES:
patent: 4531933 (1985-07-01), Norton et al.
patent: 4568338 (1986-02-01), Todd
patent: 4643716 (1987-02-01), Drach
patent: 4694838 (1987-09-01), Wijayarthna et al.
patent: 4738667 (1988-04-01), Galloway
patent: 4747840 (1988-05-01), Ladika et al.
patent: 4790810 (1988-12-01), Pugh, Jr. et al.
patent: 4887996 (1989-12-01), Bengmark

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