US5413583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Force limiting arrangement for needle holder for endoscopic surgery
Assignee: Ethicon Inc
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Filing: 1993-05-04
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Granted: 1995-05-09
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Expires: 2013-05-04
Abstract
Abstract A needle holder for endoscopic surgery consists of a front forceps with clamping jaws, an instrument tube in which a longitudinally displaceable pull rod is guided, and a rearward grip arrangement which drives an adjustment element connected to the pull rod, and a spring element for the reduction of force from the grip arrangement. A force-limiting coupling is formed according to the invention within the adjustment element.
Inventors
- 👤 Udo Wohlers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:38
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/29; A61B17/2909; A61B17/04; A61B17/0469; A61B17/06; A61B17/062; A61B2017/2926; A61B90/00; A61B90/03; A61B2090/033; A61B2090/034
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
An endoscopic instrument containing a pair of jaws connected to a pull rod, said pull rod reciprocal through an elongated tube, said pull rod capable of actuation of said jaws, and a handle connected to said pull rod, said handle containing at least one actuating lever pivotable on said handle for operating said pull rod; and a mechanism comprising an adjustment element placed between said lever and said pull rod such that the force imparted by said lever on said pull rod is controlled by said adjustment element, and wherein said adjustment element comprises a plurality of cup springs lying one behind the other within said handle, and said pull rod reciprocable within said cup springs.
Claim 2
Dependent Claim
116 words
An endoscopic instrument containing a pair of jaws connected to a pull rod, said pull rod reciprocal through an elongated tube, said pull rod capable of actuation of said jaws, and a handle connected to said pull rod, said handle containing at least one actuating lever pivotable on said handle for operating said pull rod; and a mechanism comprising an adjustment element placed between said lever and said pull rod such that the force imparted by said lever on said pull rod is controlled by said adjustment element, and wherein said adjustment element comprises a plurality of cup springs lying one behind the other within said handle, and said pull rod reciprocable within said cup springs.
References Cited (Backward Citations)
US1659112A
Cited
US2455833A
Cited
US4122856A
Cited
SU1097311A1
Cited
DE3601166A1
Cited
US4898157A
Cited
US5197970A
Cited
EP0342402A1
Cited
US5009661A
Cited
EP0406724A1
Cited
DE4010775A1
Cited
DE4131176A1
Cited
US5250056A
Cited
US5263958A
Cited
US5201743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-08 | 1998-11-07 | 1999-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-08 | 2002-11-07 | 2003-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-08 | 2006-11-07 | 2007-05-09 | $7700.00 | Window Closed / Lapsed |