Surgery – Truss – Pad
Patent
1992-05-18
1995-03-21
Cohen, Lee S.
Surgery
Truss
Pad
128656, 128642, 128780, A61B 600
Patent
active
053986873
ABSTRACT:
New devices and methods for detecting and diagnosing motility abnormalities within the pancreaticobiliary tree are disclosed. In the first device, a modified ERCP catheter with electrical activity sensing is positionable within the biliary tract, and operates to sense electrical activity during the ERCP procedure. Electrical activity is sensed by two circumferential leads formed by bands of silver, located near the distal tip of the catheter. The detection of electrical activity, in combination with the simultaneous radioscopic visualization of the biliary tract, provides a detailed motility profile for the physician without requiring the additional use of a perfusion catheter. A second device is also disclosed which detects motility within the biliary tract by the simultaneous sensing of electrical activity and surrounding fluid pressure. A biliary catheter has two circumferential silver leads and three perfusion lumens whose outlets are alternately spaced between the silver leads. When positioned within the biliary tract, this catheter yields valuable data correlating electrical activity and the corresponding occurrence of muscle activity. By the sequential detection of pressure changes at the proximal, medial, and distal perfusion outlets interspersed between the electrical activity leads, both the presence and direction of muscle activity are sensed in relation to the sensed electrical activity about the leads.
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Casler Brian L.
Cohen Lee S.
Wilson-Cook Medical Inc.
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