Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Vocal cord
Patent
1986-02-24
1988-11-15
Apley, Richard J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Vocal cord
128DIG25, 600 31, A61F 204, A61B 1900
Patent
active
047846607
ABSTRACT:
An implantable hydraulic urinary sphincter system is disclosed for maintaining continence in those patients unable to control or stop inadvertent urinary flow. The invented apparatus generally consists of an artificial urinary sphincter and a control means for automatically increasing or decreasing sphincter pressure with sensed bladder and/or intra-abdominal pressure. An improved mechanical actuation means is also disclosed which allows the patient to urinate. To urinate the patient presses a push button centered on a septum located on the outer wall of the subcutaneously implanted control unit.
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patent: 3553967 (1971-01-01), Porter et al.
patent: 3815576 (1974-06-01), Balaban
patent: 3827439 (1974-08-01), Schulte et al.
patent: 4106510 (1978-08-01), Hakim et al.
patent: 4464168 (1984-08-01), Redmond et al.
patent: 4549531 (1985-10-01), Trick
patent: 4551128 (1985-11-01), Hakim et al.
patent: 4557722 (1985-12-01), Harris
patent: 4571749 (1986-02-01), Fischell
Apley Richard J.
Archibald Robert E.
Califano Howard W.
Isabella David J.
The Johns Hopkins University
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