Patent US5743881A successfully refreshed from Google Patents.
US5743881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laparoscopic surgical instrument and method of using same
Assignee: Aptec Medical Corp
•
Filing: 1995-11-03
•
Granted: 1998-04-28
•
Expires: 2015-11-03
Abstract
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.
Inventors
- 👤 Lawrence A. Demco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:11
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3417; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0606; A61B17/3403; A61M19/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
104 words
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.
Claim 2
Dependent Claim
104 words
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.
Claim 3
Dependent Claim
37 words
The surgical instrument as claimed in claim 1 wherein the lumen extends along the member's length to open at each end of the member and the needle is formed to extend the full length of the lumen.
Claim 4
Dependent Claim
30 words
The surgical instrument as claimed in claim 2 wherein the needle has bonded thereto a tubular member having a bore therethrough in fluid connection with the bore of the needle.
Claim 5
Dependent Claim
27 words
The surgical instrument of claim 3 wherein the lumen has an inner diameter and the inner diameter is reduced adjacent the end formed for insertion through tissue.
Claim 6
Dependent Claim
18 words
The surgical instrument of claim 3 wherein a releasable lock is disposed between the member and the sleeve.
Claim 7
Dependent Claim
16 words
The surgical instrument of claim 2 wherein the lumen is formed to closely surround the needle.
Claim 8
Dependent Claim
16 words
The surgical instrument of claim 1 wherein the lumen is formed to closely surround the needle.
Claim 9
Dependent Claim
18 words
The surgical instrument of claim 1 wherein a releasable lock is disposed between the member and the sleeve.
Claim 10
Independent Claim
151 words
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.
Claim 11
Independent Claim
151 words
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.
Claim 12
Dependent Claim
45 words
The method of claim 9 used to gain access to a body cavity and wherein the tissue is penetrated with the needle and anesthetic is administered to the tissue until access is made to the body cavity prior to moving the member along the needle.
Claim 13
Dependent Claim
23 words
The method of claim 10 wherein after access is gained to a body cavity the needle and member are removed from the sleeve.
Claim 14
Dependent Claim
31 words
The method of claim 10 further comprising the step of: inserting a wire through the bore of the needle to determine when the needle has gained access to the body cavity.
Claim 15
Dependent Claim
13 words
The method of claim 9 used to gain access to a body cavity.
Claim 16
Dependent Claim
32 words
The method of claim 9 further comprising: (d) repeating steps (b) and (c) until access is gained to a body cavity; and (e) removing the needle and the member from the sleeve.
Claim 17
Dependent Claim
19 words
The method of claim 9 wherein the sleeve is sized to permit a laparoscopic procedure to be performed therethrough.
Claim 18
Dependent Claim
29 words
The method of claim 9 further comprising the step of: inserting a wire through the bore of the needle to determine the positioning of the needle in the tissue.
References Cited (Backward Citations)
US3459183A
Cited
FR2182666A1
Cited
US4763667A
Cited
US4869717A
Cited
US4978334A
Cited
US5106376A
Cited
US5158543A
Cited
US5139487A
Cited
US5336176A
Cited
US5258003A
Cited
US5368574A
Cited
US5334150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-27 | 2001-10-27 | 2002-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-27 | 2005-10-27 | 2006-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-27 | 2009-10-27 | 2010-04-28 | $7700.00 | Window Closed / Lapsed |