Implantable diagnostic device for indicating structural changes

Details Implantable diagnostic device for indicating structural changes Implantable diagnostic device for indicating structural changes

1995-04-03

1996-11-05

Manuel, George

Surgery

Truss

Pad

A61B 500

Patent

active

055706908

ABSTRACT:
An indicating device for indicating structural change of internal anatomical tissue includes a bladder for being implanted in the body adjacent internal anatomical tissue and having a variable size passage preventing leakage of a fluidic substance from the bladder when the bladder is initially implanted and causing leakage of the fluidic substance from the bladder when the bladder is stressed in response to structural change of the internal anatomical tissue. A system for indicating structural change of internal anatomical tissue includes a bladder and a penetrating member for penetrating internal anatomical tissue to implant the bladder within the internal anatomical tissue and for supplying a fluidic substance to the bladder once the bladder is implanted in the tissue. A method of indicating structural change of internal anatomical tissue includes the steps of implanting a bladder in the body adjacent internal anatomical tissue, supplying a fluidic substance to the bladder to close a variable size passage of the bladder to prevent leakage of the fluidic substance from the bladder when the bladder is initially implanted and leaving the bladder in the body such that the variable size passage is opened to permit leakage of the fluidic substance from the bladder when the bladder is stressed due to structural change of the internal anatomical tissue.

REFERENCES:
patent: 3635223 (1972-01-01), Klieman
patent: 4222377 (1980-09-01), Burton
patent: 4893623 (1990-01-01), Rosenbluth
patent: 5406961 (1995-04-01), Artal

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