Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1986-09-22
1987-09-29
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604265, A61M 5325
Patent
active
046966722
ABSTRACT:
A bladder assist device for maintaining natural drainage by a repetition of expansion and contraction of a bladder even when a urethral catheter is embedded in the bladder which includes a pressure control chamber containing a concentric-type siphon tube connected to a urethral catheter at a particular part, the pressure control chamber having a pressure control hole sealed by an air flow restricting filter.
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patent: 2860636 (1958-11-01), Seitchik et al.
patent: 3503401 (1970-03-01), Andersen et al.
patent: 3604420 (1971-09-01), Vaillancourt
patent: 4084593 (1978-04-01), Jarund
patent: 4515593 (1985-05-01), Norton
patent: 4539234 (1985-09-01), Sakamoto et al.
Jige Masanobu
Mochizuki Masatsugu
Umemura Yoshihiro
Rosenbaum C. Fred
Unitaka Ltd.
Vinyard Sherri E.
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