US5464422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suture needle
Assignee: W.L. Gore and Associates Inc
•
Filing: 1995-01-11
•
Granted: 1995-11-07
•
Expires: 2015-01-11
Abstract
Abstract A suture needle having, in sequence, a shaft portion, a tip portion, a conical point portion and a point. The shaft portion may be straight or curved, and cylindrical or tapered. The tip portion has at least two substantially flat surfaces. The conical point portion is of conical shape having a substantially round cross section adjacent to the point of the needle. A plane tangent to the surface of the conical point portion makes a greater angle with respect to the longitudinal centerline of the needle than does the angle formed by the intersection of a plane through a flat surface of the tip portion and the longitudinal centerline of the needle.
Inventors
- 👤 James D. Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:02
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06066; A61B2017/00831; A61B2017/0084; A61B2017/00849
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
109 words
A suture needle comprising, in sequence, a shaft portion, a tip portion, a conical point portion and a point, and further having a longitudinal centerline, wherein the tip portion has at least two flat surfaces, said flat surfaces each being in a plane that intersects the centerline at a plane intersection angle, and further having a conical point portion of substantially round cross section, wherein said conical point portion has a surface and said conical point portion forms a cone angle between a plane tangent to the surface of the conical point portion and the longitudinal centerline, and wherein said cone angle is greater than said plane intersection angle.
Claim 2
Dependent Claim
109 words
A suture needle comprising, in sequence, a shaft portion, a tip portion, a conical point portion and a point, and further having a longitudinal centerline, wherein the tip portion has at least two flat surfaces, said flat surfaces each being in a plane that intersects the centerline at a plane intersection angle, and further having a conical point portion of substantially round cross section, wherein said conical point portion has a surface and said conical point portion forms a cone angle between a plane tangent to the surface of the conical point portion and the longitudinal centerline, and wherein said cone angle is greater than said plane intersection angle.
Claim 3
Dependent Claim
27 words
A suture needle according to claim 1 wherein the shaft portion is a cylindrical shaft portion of substantially constant diameter along the length of the shaft portion.
Claim 4
Dependent Claim
15 words
A suture needle according to claim 2 wherein the tip portion has two flat surfaces.
Claim 5
Dependent Claim
15 words
A suture needle according to claim 2 wherein the tip portion has three flat surfaces.
Claim 6
Dependent Claim
15 words
A suture needle according to claim 2 wherein the tip portion has four flat surfaces.
Claim 7
Dependent Claim
15 words
A suture needle according to claim 2 wherein the tip portion has five flat surfaces.
Claim 8
Dependent Claim
26 words
A suture needle according to claim 1 wherein the shaft portion is a tapered shaft portion of varying diameter along the length of the shaft portion.
Claim 9
Dependent Claim
15 words
A suture needle according to claim 7 wherein the tip portion has two flat surfaces.
Claim 10
Dependent Claim
15 words
A suture needle according to claim 7 wherein the tip portion has three flat surfaces.
Claim 11
Dependent Claim
15 words
A suture needle according to claim 7 wherein the tip portion has four flat surfaces.
Claim 12
Dependent Claim
16 words
A suture needle according to claim 7 where n the tip portion has five flat surfaces.
Claim 13
Dependent Claim
21 words
A suture needle according to claim 1 wherein the shaft portion is substantially straight along the length of the shaft portion.
Claim 14
Dependent Claim
15 words
A suture needle according to claim 12 wherein the tip portion has two flat surfaces.
Claim 15
Dependent Claim
15 words
A suture needle according to claim 12 wherein the tip portion has three flat surfaces.
Claim 16
Dependent Claim
15 words
A suture needle according to claim 12 wherein the tip portion has four flat surfaces.
Claim 17
Dependent Claim
15 words
A suture needle according to claim 12 wherein the tip portion has five flat surfaces.
Claim 18
Dependent Claim
21 words
A suture needle according to claim 1 wherein the shaft portion is substantially curved along the length of the shaft portion.
Claim 19
Dependent Claim
15 words
A suture needle according to claim 17 wherein the tip portion has two flat surfaces.
Claim 20
Dependent Claim
15 words
A suture needle according to claim 17 wherein the tip portion has three flat surfaces.
Claim 21
Dependent Claim
15 words
A suture needle according to claim 17 wherein the tip portion has four flat surfaces.
Claim 22
Dependent Claim
15 words
A suture needle according to claim 17 wherein the tip portion has five flat surfaces.
References Cited (Backward Citations)
US1599059A
Cited
US2869550A
Cited
US2841150A
Cited
US3094123A
Cited
US3038475A
Cited
US3265070A
Cited
US3636955A
Cited
US4128351A
Cited
US4513747A
Cited
EP0224117A1
Cited
EP0286438A2
Cited
US4799484A
Cited
FR2657247A1
Cited
EP0413862A1
Cited
US4932961A
Cited
EP0453132A1
Cited
US5178628A
Cited
US5123910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-06 | 1999-05-08 | 1999-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-06 | 2003-05-08 | 2003-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-06 | 2007-05-08 | 2007-11-07 | $7700.00 | Window Closed / Lapsed |