Patent US5318579A successfully refreshed from Google Patents.
US5318579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arthroscopic knot tying device
Assignee: Individual
•
Filing: 1992-09-21
•
Granted: 1994-06-07
•
Expires: 2012-09-21
Abstract
Abstract A method for closing an incision (I) deep within a patient's body (B) with a suture (S). A medical instrument (C) has arms 1 and 2 for openings and closing opposed jaws (3,4). Each jaw has a pair of openings (3A-3B, 4A-4B). A knot (K) is formed using the ends (S1, S2) of the suture. For this purpose, the ends of the suture are withdrawn from the body. This allows the surgeon to form a proper surgical knot. After forming the knot, the suture ends are inserted through the respective pairs of openings. The surgeon can now draw the knot tightly down on the incision to close it by inserting the jaws end of the instrument into the patient's body while applying a slight pulling force on the ends of the suture. The surgical knot thus made will not thereafter loosen.
Inventors
- 👤 James C. Y. Chow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:45
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0469; A61B17/28; A61B17/29; A61B17/2909; A61B2017/0474; A61B2017/2926
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
198 words
A method of performing a surgical procedure involving the closure of an incision deep within a patient's body with a suture comprising: threading the suture about the incision to effect closure of the incision; withdrawing the ends of the suture from the patient's body; forming a know with the ends of the suture outside the patient's body; inserting the ends of the suture through respective openings in a medical instrument having a pair of jaws with openings therein for the ends of the suture, the ends of the suture being drawn completely through the openings; inserting the portion of the instrument where the openings are located into the body and moving it to the incision site, the jaws of the instrument being opened after the knot is formed to receive threads of the suture and closed prior to inserting the instrument in the patient's body; applying a continuous pressure on the suture ends as the instrument is inserted to thereby draw the know down into the incision; and, cutting off the ends of the suture after the knot is drawn down on the incision and closes it, the knot being sufficiently tight so as not to thereafter loosen.
Claim 2
Independent Claim
198 words
A method of performing a surgical procedure involving the closure of an incision deep within a patient's body with a suture comprising: threading the suture about the incision to effect closure of the incision; withdrawing the ends of the suture from the patient's body; forming a know with the ends of the suture outside the patient's body; inserting the ends of the suture through respective openings in a medical instrument having a pair of jaws with openings therein for the ends of the suture, the ends of the suture being drawn completely through the openings; inserting the portion of the instrument where the openings are located into the body and moving it to the incision site, the jaws of the instrument being opened after the knot is formed to receive threads of the suture and closed prior to inserting the instrument in the patient's body; applying a continuous pressure on the suture ends as the instrument is inserted to thereby draw the know down into the incision; and, cutting off the ends of the suture after the knot is drawn down on the incision and closes it, the knot being sufficiently tight so as not to thereafter loosen.
Claim 3
Dependent Claim
38 words
The method of claim 1 further including repeating the above series of steps with successive sutures whereby a series of knots are formed which extend from one end of the incision to the other to close the incision.
Claim 4
Dependent Claim
110 words
The method of claim 1 further including: withdrawing the ends of the suture from the respective openings in the jaws of the medical instrument after the knot is drawn down on the incision; withdrawing the medical instrument and suture ends from the patient's body; repeating the aforementioned steps of a) forming a knot with the ends of the suture, b) inserting the ends of the suture into openings in the pairs of the instrument, c) inserting the instrument into the body, d) applying a continuous pressure on the suture ends; thereby to draw a second knot down onto the first knot, and then cutting off the ends of the suture.
References Cited (Backward Citations)
SU167006A1
Cited
DE453256C
Cited
US671337A
Cited
US1749261A
Cited
US2113246A
Cited
US2518994A
Cited
US3871379A
Cited
SU649416A1
Cited
SU1169630A1
Cited
GB2210574A
Cited
US5009661A
Cited
US5084058A
Cited
US5176691A
Cited
US5100421A
Cited
US5147373A
Cited
US5201743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-06 | 1997-12-06 | 1998-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-06 | 2001-12-06 | 2002-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-06 | 2005-12-06 | 2006-06-07 | $7700.00 | Window Closed / Lapsed |