Surgery – Truss – Pad
Patent
1984-06-18
1986-10-21
Peshock, Robert
Surgery
Truss
Pad
A61F 1732
Patent
active
046179291
ABSTRACT:
The surgical appliance is capable of being temporarily placed in a body for assisting in the passage of a tube through a puncture formed in the skin of the body. Contraction of the skin around the tube, once the appliance is removed, assists in holding the tube in place. The surgical appliance comprises a trochar having a proximal end and a distal end. The trochar is divided into a plurality of separate components. At least one tooth is provided on the proximal end of each of the components and a rotary actuator having a central channel therethrough is also provided for actuating the plurality of trochar components. A spiral formation on the actuator cooperates with the teeth on the trochar components so that rotation of the actuator about the longitudinal axis of the trochar produces parallel radial motion from each of the trochar components having at least one tooth thereon with respect to each other from a closed position in which such components lie substantially parallel and adjacent to each other thereby forming a composite trochar, to an open position wherein such components are substantially axially parallel with each other and separated radially to create a trochar central channel through the trochar components. The trochar central channel formed within the trochar components forms a continuation of the first named central channel through the actuator to provide a channel within the appliance through which a tube can be positioned with one end thereof extending into the puncture. The appliance is then removed from around the tube to leave only the tube in place within the puncture formed in the skin, with contraction of the skin adjacent the puncture around the tube, upon removal of the appliance, assisting in holding the tube in place.
REFERENCES:
patent: 3182663 (1965-05-01), Abelson
patent: 3384087 (1968-05-01), Brummelkamp
patent: 3643649 (1972-02-01), Amato
patent: 3688773 (1972-09-01), Weiss
patent: 4291690 (1981-09-01), Jessen
Contreras Wenceslao J.
Peshock Robert
Vigil Thomas R.
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