Catheter

Details Catheter Catheter

1977-11-09

1980-09-16

Pellegrino, Stephen C.

Surgery

Truss

Pad

A61M 2500

Patent

active

042223849

ABSTRACT:
An improved Foley-type urethal catheter is formed from silicone rubber. The tip of the catheter is molded in one integral piece to include drainage eyes and a rearwardly extending balloon portion. The rubber of the balloon portion is substantially more elastic than the tip. The trailing portion of the catheter includes an elongated tubular body attached to and extending rearwardly from the tip and to which the rear end of the balloon portion of the tip is attached. A drainage lumen extends from the tip through the body to the trailing end of the catheter and a plurality of inflation lumens also extend through the catheter body from the inflatable balloon portion to the trailing end of the body. The elongate catheter body is formed from an inner tube and an outer, surrounding sleeve to enable the stiffness of the catheter to be controlled carefully during manufacture. The sleeve and inner core of the catheter and rear end of the balloon are joined in a shoulderless, smooth construction.

REFERENCES:
patent: 2912981 (1959-11-01), Keough
patent: 3547126 (1970-12-01), Birtwell
patent: 3734100 (1973-05-01), Walker et al.
patent: 3832253 (1974-08-01), Palma et al.
patent: 3833003 (1974-09-01), Taricco
patent: 3850720 (1974-11-01), Collins
patent: 3926705 (1975-12-01), Todd

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