Surgical device comprising a radially expandable non-conductive sheath
OwnerLoren R. Kennett, Vickie L. Kennettinventors
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Abstract
A medical instrument apparatus for forming and enlarging percutaneous penetrations comprising an elongate dilation tube (expandable sheath), silicone insert and 12′ polyvinyl coated copper wire. The expandable sheath is radially expandable from a small diameter configuration to a large diameter configuration capable of receiving an external stationary tube, for example, a debriding apparatus. The external stationary tube contacts a metal tab housed in the silicone insert which is attached to the 12′ electrical cord, allowing an electrical current to pass down the external stationary metal tube thereby becoming the cauterizing instrument to coagulate hemorrhage in the operative field (joint).
Claims41
A surgical device for providing a single entry point into an operative field, comprising;
- a radially expandable tubular sheath comprising a non-conductive material;
- a base attached to the radially expandable sheath, wherein the base comprises an opening that is common with the opening of the sheath;
- an insert adapted to be inserted into the base, said insert comprising a conductive metal tab;
- and
- an electrical cord passing through an aperture in an arm of the base and conductively connected to the metal tab,
- wherein said metal tab is capable of making contact with a metal tube inserted into the opening of the base.
A surgical device for providing a single entry point into an operative field, comprising:
- a radially expandable tubular sheath comprising a non-conductive material;
- and
- a base attached to the radially expandable sheath, wherein the base comprises
- an opening that is common with the opening of the sheath,
- an arm extending outward from the body of the base, said arm housing a conductive metal contact.
Dependencies are inferred from the claim text.