Patent US4446866A successfully refreshed from Google Patents.
US4446866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microsurgical needle holder
Assignee: SNOWDEN-PENCER Inc
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Filing: 1982-03-10
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Granted: 1984-05-08
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Expires: 2002-03-10
Abstract
Abstract A microsurgical needle holder comprising a pair of arms which are pivotally mounted to each other, having needle holding jaws moving in opposition to each other in response to handles, at least one of the handles having an integral first handle extension and an attachable second handle extension adapted to receive weights at varying locations within said handle extensions, thereby providing for adjustment of the length and of the weight distribution of the microsurgical needle holder within the hand of the microsurgeon.
Inventors
- 👤 John A. Davison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/2812; A61B17/04; A61B17/0483
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
149 words
A microsurgical needle holder comprising, a. a pair of arms pivotally mounted to each other intermediate their ends, b. opposed handles on the proximal ends of each of the arms on one side of the pivot, c. opposed jaws on the distal ends of each of the arms on the other side of the pivot, d. opposed flat textured surfaces on each of the jaws, said textured surfaces being substantially engageable to each other in clamping relationship when the handles are drawn together, e. at least one of said handles having an attachable first handle extension for increasing the length of said handle to be held within the palm while the other handle is being manipulated by the thumb and a finger of the microsurgeon, and f. at least one weight positionably engageable with said first handle extension for varying the center of balance of said microsurgical needle holder.
Claim 2
Dependent Claim
149 words
A microsurgical needle holder comprising, a. a pair of arms pivotally mounted to each other intermediate their ends, b. opposed handles on the proximal ends of each of the arms on one side of the pivot, c. opposed jaws on the distal ends of each of the arms on the other side of the pivot, d. opposed flat textured surfaces on each of the jaws, said textured surfaces being substantially engageable to each other in clamping relationship when the handles are drawn together, e. at least one of said handles having an attachable first handle extension for increasing the length of said handle to be held within the palm while the other handle is being manipulated by the thumb and a finger of the microsurgeon, and f. at least one weight positionably engageable with said first handle extension for varying the center of balance of said microsurgical needle holder.
Claim 3
Dependent Claim
55 words
A microsurgical needle holder as cited in claim 1 further comprising a second handle extension attachable to said first handle extension and positionably engageable with said weight for further increasing the length of the handle within the palm of the microsurgeon and providing greater variance in the center of balance of said microsurgical needle holder.
Claim 4
Dependent Claim
53 words
A microsurgical needle holder comprising, a. the structure in accordance with claim 1 in which b. the first handle extension is hollow and is adapted to receive one or more weights at varying locations within its length for varying the weight distribution of the microsurgical needle holder within the hand of the microsurgeon.
Claim 5
Dependent Claim
53 words
A microsurgical needle holder comprising, a. the structure in accordance with claim 2 in which b. the second handle extension is hollow and is adapted to receive one or more weights at varying locations within its length for varying the weight distribution of the microsurgical needle holder within the hand of the microsurgeon.
Claim 6
Dependent Claim
42 words
A microsurgical needle holder comprising, a. the structure in accordance with claim 1 in which b. the jaws are tapered and curved to form a narrow arc at their distal ends for holding a microsurgical needle or suture at an acute angle.
Claim 7
Dependent Claim
34 words
A microsurgical needle holder comprising, a. the structure in accordance with claim 1 in which b. the flat clamping surfaces are grooved in in the range of 16,600 to 110,000 grooves per square inch.
Claim 8
Dependent Claim
32 words
A microsurgical needle holder comprising, a. the structure in accordance with claim 1 in which b. the flat clamping surfaces are grooved with V-shaped grooves of approximately 62,500 grooves per square inch.
Claim 9
Dependent Claim
17 words
A microsurgical needle holder according to claim 1 having a length of approximately 3.5 to 4.5 inches.
Claim 10
Dependent Claim
17 words
A microsurgical needle holder according to claim 1 having a weight of approximately 1.5 to 2.0 ounces.
Claim 11
Dependent Claim
27 words
A microsurgical needle holder according to claim 5 wherein the arc at the distal end of the jaws has a diameter of approximately 0.02 to 0.03 inches.
Claim 12
Dependent Claim
20 words
A microsurgical needle holder according to claim 1 wherein the handles have a diameter of approximately 0.35 to 0.4 inches.
Claim 13
Dependent Claim
23 words
A microsurgical needle holder according to claim 2 wherein the attachable second handle extension has a length of approximately 1.25 to 1.75 inches.
Claim 14
Dependent Claim
23 words
A microsurgical needle holder according to claim 2 wherein the attachable second handle extension has a weight of approximately 0.5 to 1.0 ounces.
Claim 15
Dependent Claim
18 words
A microsurgical needle holder according to claim 3 wherein the weights are in increments of approximately 0.25 ounces.
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) | 1987-05-08 | 1987-11-07 | 1988-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-08 | 1991-11-07 | 1992-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-08 | 1995-11-07 | 1996-05-08 | $7700.00 | Window Closed / Lapsed |