US4901722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suturing needle with suture
Assignee: Mutec KK
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Filing: 1989-01-11
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Granted: 1990-02-20
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Expires: 2009-01-11
Abstract
Abstract A suturing needle with suture used in a surgical operation. The suturing needle is formed of a single or two or more doubled hollow tubes and a core material inserted thereinto, which is fixed to the tip and root of the suturing needle, whereby, when the suturing needle is broken during the operation, broken pieces are not scattered and extraction of each broken piece from a body tissue during operation is facilitated.
Inventors
- 👤 Takeshi Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06066; A61B17/06004; A61B2017/06028; A61B2017/06052; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861; Y10T29/49879; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
206 words
A suturing needle with suture, comprising a needle in the form of an elongated hollow tube having a first end and a second end, the first end of the hollow tube being closed to form a needle point, and inner core material disposed within said hollow bore along substantially the entire length thereof and terminating a short distance inwardly of said second end having an outer diameter conforming to the inner diameter of said bore, weldment means welding the hollow tube to the inner core material at said first end and means fixing the inner core material to the hollow tube portion of said needle near said second end and spaced slightly toward said needle point from the end of said inner core material spaced inwardly from said second end, the first end of the hollow tube and adjoining portion of the inner core material being swaged after such welding to form said needle point, the space between said last mentioned end of the inner core material and said second end of the hollow tube defining a suture fixing hole opening through said second end of the hollow tube, and the suture having an end portion thereof inserted into and fixed in said suturing fixing hole.
Claim 2
Dependent Claim
206 words
A suturing needle with suture, comprising a needle in the form of an elongated hollow tube having a first end and a second end, the first end of the hollow tube being closed to form a needle point, and inner core material disposed within said hollow bore along substantially the entire length thereof and terminating a short distance inwardly of said second end having an outer diameter conforming to the inner diameter of said bore, weldment means welding the hollow tube to the inner core material at said first end and means fixing the inner core material to the hollow tube portion of said needle near said second end and spaced slightly toward said needle point from the end of said inner core material spaced inwardly from said second end, the first end of the hollow tube and adjoining portion of the inner core material being swaged after such welding to form said needle point, the space between said last mentioned end of the inner core material and said second end of the hollow tube defining a suture fixing hole opening through said second end of the hollow tube, and the suture having an end portion thereof inserted into and fixed in said suturing fixing hole.
Claim 3
Dependent Claim
20 words
A suturing needle with suture in accordance with claim 1, wherein the needle is formed of a single hollow tube.
Claim 4
Dependent Claim
22 words
A suturing needle with suture in accordance with claim 1, wherein the needle is formed of two or more doubled hollow tubes.
Claim 5
Dependent Claim
27 words
A suturing needle with suture in accordance with claim 1, wherein a suture cutter is formed on an edge of a suture fixing hole of the needle.
Claim 6
Dependent Claim
44 words
A suturing needle with suture in accordance with any of the claim 1, 2, 3 or claim 4, wherein the needle is made of a low hardness material such as stainless steel in SUS 301 group and the hardness is raised by heat treatment.
Claim 7
Dependent Claim
30 words
A suturing needle with suture in accordance with any of the claim 1, 2, 3 or 4, wherein the needle is made of a high hardness material such as Silicoroy.
References Cited (Backward Citations)
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US1613206A
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US1591021A
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US2022234A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |