Surgery – Truss – Pad
Patent
1990-10-02
1992-12-15
Rosenbaum, C. Fred
Surgery
Truss
Pad
604113, 6048901, 6048911, A61M 1100
Patent
active
051708019
ABSTRACT:
A medical capsule device for releasing a substance at a defined location in the gastrointestinal tract. The device has a capsule body defining one or more apertures in the circumferential wall thereof and a sleeve valve rotatably positioned therein having one or more corresponding apertures in the circumferential wall thereof. The sleeve valve comprises a coil and electrically connected heatable resistor which are operatively associated with an actuator member formed of a shape memory alloy responsive to heat and which will move from a non-heated first shape to a heated second shape. Actuator stop means are provided in the capsule body for being engaged by the actuator member during movement from the non-heated first shape to the heated second shape so that the actuator member movement will serve to rotate the sleeve valve to an open position.
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Casper Robert A.
Jochem Warren J.
McCartney Michael L.
Parr Alan F.
Glaxo Inc.
Jenkins Richard E.
Mendez M.
Rosenbaum C. Fred
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