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US 5,743,881 AGranted
Laparoscopic surgical instrument and method of using same
AssigneeAptec Medical Corporation
InventorLawrence A. Demco
Life of this patent
Estimating the term…
Abstract
A surgical trocar instrument is taught which is useful for conducting laparoscopic procedures using local anesthetic. The instrument is used to anesthetize a path through the abdominal wall and to guide the instrument along the anesthetized path. The instrument includes a trocar and cannula which are mounted on and are guided by a hypodermic needle.
Claims16
A surgical instrument comprising:
- a needle suitable for the administration of fluids having a sharpened tip and a bore therethrough;
- a member having an end formed as a sharpened tip for insertion through tissue and having a lumen therein for accepting the needle, the lumen being disposed to allow extension of the sharpened tip of the needle from the end formed for insertion through tissue, the needle being slidable within the lumen and the lumen being formed to permit the member to ride along the needle;
- a sleeve disposed about the member;
- and,
- a wire sized to pass through the bore of the needle.
2 more elements
A method for inserting a surgical device through tissue comprising the steps of:
- (a) providing a surgical device having a needle suitable for the administration of fluids having a sharpened tip and a bore therethrough;
- a member having an end formed as a sharpened tip for insertion through tissue and having a lumen therein for accepting the needle, the lumen being disposed to allow extension of the sharpened tip of the needle from the end formed for insertion through tissue, the needle being slidable within the lumen and the lumen being formed to permit the member to ride along the needle;
- and a sleeve disposed about the member;
- (b) penetrating the tissue with the needle and administering an amount of anesthetic to the tissue through the needle;
- (c) moving the member and the sleeve along the needle such that the tissue is penetrated with the end formed for insertion through tissue.
2 more elements
Dependencies are inferred from the claim text.