Urinary catheter and bladder irrigation system

Details Urinary catheter and bladder irrigation system Urinary catheter and bladder irrigation system

1992-11-12

1994-04-05

Green, Randall L.

Surgery

Means for introducing or removing material from body for...

Material introduced into and removed from body through...

604 30, 604 39, 604 43, 604 45, 604 56, 604 82, 604 83, 604 96, 604 97, 604 98, 604902, 604264, 604266, A61M 100, A61M 302, A61M 3100, A61M 3700

Patent

active

053000226

ABSTRACT:
An improvement over the Foley catheter which provides, in addition to the main drainage lumen, a central smaller lumen for continuous delivery of a small quantity of sterile irrigating solution directly through the distal tip into the bladder. A larger portion of the irrigating solution is deflected by the cone shaped roof of the distal tip and turned backward past the drainage ports and into the drainage lumen. This backward flow of liquid causes a mild suction which assists the removal of clots and tissue debris from the bladder. The continuous flow of sterile solution also cleanses the drainage lumen and prevents the upward movement of bacteria common in most urinary catheters. A suction syringe can also be used in the usual manner in the event of a blockage. A second embodiment of the invention provides two protuberances across from the drainage ports within the distal tip to assist in breaking up clots as they enter the drainage lumen.

REFERENCES:
patent: 2139653 (1938-12-01), Belfrage
patent: 4114625 (1978-09-01), Onat
patent: 4299226 (1981-11-01), Banka
patent: 4318402 (1982-03-01), Vaillancourt
patent: 4487600 (1984-12-01), Brownlie et al.
patent: 4493694 (1985-01-01), Wuchinich

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