Urinary catheter with collapsible urethral tube

Details Urinary catheter with collapsible urethral tube Urinary catheter with collapsible urethral tube

1985-12-11

1987-12-01

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604171, 604265, 128DIG25, A61M 2500

Patent

active

047101695

ABSTRACT:
An indwelling urinary catheter having semi-rigid tubular portions for holding open the entrance of the bladder and the urethral exit and a collapsible tubular portion extending through the urethra. The collapsible tube is closed by the normal urethral mechanism and opened upon the flow of urine, thus blocking bacterial migration into the body and avoiding abnormal, continuous distention of the urethra and consequent discomfort to the patient. Avoided, as well, is the transmission of infection occasioned by the sliding motion of rigid-tube catheters within the urethra.

REFERENCES:
patent: 1120549 (1914-12-01), Schellberg
patent: 3344791 (1967-10-01), Foderick
patent: 3394705 (1968-07-01), Abramson
patent: 3428046 (1969-02-01), Remer et al.
patent: 3556294 (1971-01-01), Walck, III
patent: 3769981 (1973-11-01), McWhorter
patent: 3898993 (1975-08-01), Taniguchi
patent: 4062363 (1977-12-01), Bonner, Jr.
patent: 4100923 (1978-07-01), Southern
patent: 4349029 (1982-09-01), Mott
patent: 4553959 (1985-11-01), Hickey et al.

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