Patent US3028300A successfully refreshed from Google Patents.
US4406237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suturing instrument for surgical operation
Assignee: Janome Corp
•
Filing: 1981-05-13
•
Granted: 1983-09-27
•
Expires: 2001-05-13
Abstract
Abstract A suturing instrument for surgical operations comprises a curved needle holding a needle thread and a shuttle positioned on a support and manually displaceable back and forth relative to the needle. The shuttle is formed with an element for holding one knotted end of a shuttle thread which has a required length for carrying out the surgical operation. As the shuttle is moved towards and backwards of the needle the needle thread and the free end portion of the shuttle thread form lock stitches in a wound to be sewn up.
Inventors
- 👤 Yasukata Eguchi
- 👤 Reishi Nomoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:08
CPC Classifications
D; D05; D05B; D05B81/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
139 words
A suturing instrument for surgical operation, comprising a curved needle for carrying a needle thread; a shuttle for carrying a shuttle thread; stationary supporting means for supporting said needle in stationary position with respect thereto; and holder means for holding said shuttle and mounted on said supporting means, said holder means being manually movable relative to said supporting means towards and away from said curved needle so that said shuttle held by the holder means cooperates with said curved needle to form lock stitches in a wound to be sewn up, said holder means including a box-shaped hollow frame accommodating said shuttle, a detaining element having a pawl for detaining said shuttle in said frame and an elongated shank turnably mounted on said frame, and a spring acting on said shank as to press said pawl against said shuttle.
Claim 2
Dependent Claim
139 words
A suturing instrument for surgical operation, comprising a curved needle for carrying a needle thread; a shuttle for carrying a shuttle thread; stationary supporting means for supporting said needle in stationary position with respect thereto; and holder means for holding said shuttle and mounted on said supporting means, said holder means being manually movable relative to said supporting means towards and away from said curved needle so that said shuttle held by the holder means cooperates with said curved needle to form lock stitches in a wound to be sewn up, said holder means including a box-shaped hollow frame accommodating said shuttle, a detaining element having a pawl for detaining said shuttle in said frame and an elongated shank turnably mounted on said frame, and a spring acting on said shank as to press said pawl against said shuttle.
Claim 3
Dependent Claim
30 words
The suturing instrument of claim 1, wherein said shuttle is formed with a projection and an eyelet provided in said projection for holding a knotted end of the shuttle thread.
Claim 4
Dependent Claim
22 words
The suturing instrument of claim 1, wherein said shuttle has a front end directed towards said needle and an opposite rear end.
Claim 5
Dependent Claim
43 words
The suturing instrument of claim 3, wherein said shuttle is formed with a bore for holding the knotted end of the shuttle thread, and a slot communicating with said bore and operative for guiding the shuttle thread into and out of said bore.
Claim 6
Dependent Claim
21 words
The suturing instrument of claim 4, wherein said bore and said slot are provided at the rear end of said shuttle.
Claim 7
Dependent Claim
21 words
The suturing instrument of claim 4, wherein said bore and said slot are provided at the front end of said shuttle.
Claim 8
Dependent Claim
24 words
The suturing instrument of claim 3, wherein said shuttle has an elongated element inserted therein, the shuttle thread being fixedly secured to said element.
Claim 9
Dependent Claim
11 words
The suturing instrument of claim 1, wherein said shuttle is interchangeable.
Claim 10
Dependent Claim
21 words
The suturing instrument of claim 8, wherein said element is located in the vicinity of said front end of said shuttle.
Claim 11
Dependent Claim
21 words
The suturing instrument of claim 8, wherein said element is located in the vicinity of said rear end of said shuttle.
Claim 12
Dependent Claim
26 words
The suturing instrument of claim 1, wherein said pawl is provided with a fork-shaped portion abutting against said shuttle for supporting the same in said frame.
Claim 13
Dependent Claim
22 words
The suturing instrument of claim 11, including a stop member on said holder means for limiting the turnable movement of said shank.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-26 | 1987-03-28 | 1987-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-26 | 1991-03-28 | 1991-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-26 | 1995-03-28 | 1995-09-27 | $7700.00 | Window Closed / Lapsed |