Implantable blood flow and occlusion pressure sensing sphincteri

Details Implantable blood flow and occlusion pressure sensing sphincteri Implantable blood flow and occlusion pressure sensing sphincteri

1986-04-21

1987-12-01

Thaler, Michael H.

Surgery

Truss

Perineal

128346, 128DIG25, 623 14, A61F 100

Patent

active

047096900

ABSTRACT:
An implantable, percutaneously accessed blood flow and occlusion pressure sensing sphincteric system including an inflatable occlusion cuff to surround a patient's urethra for occluding and relaxing the urethra to produce lumenal coaptation for the treatment of urinary incontinence. The occlusion cuff is electro-fluidically interconnected to a hyponometer by way of electro-fluidic coupling, a coaxial, electrically conductive hypodermic needle, and a fluid pressure regulating and control chamber. Thus, the occlusion cuff can be percutaneously and variably infused with a precisely measured supply of fluid from the hyponometer for inflating the cuff and thereby increasing the application of occlusive pressure to the urethra. The occlusion cuff is provided with a transducing element, so that the patient's arteriovascular blood pulses through the urethra can be remotely monitored at the hyponometer to enable the physician to receive a visual and/or audible indication when blood flow through the patient's urethra is compromised as a consequence of applying excessive occlusive pressure to the urethra. Hence, the risks of ischemia and necrosis, as an undesirable result of overpressurizing the occlusion cuff, can be minimized.

REFERENCES:
patent: 4256094 (1981-03-01), Kapp et al.
patent: 4399809 (1983-08-01), Baro et al.
patent: 4408597 (1983-10-01), Tenney

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