Patent US5971920A successfully refreshed from Google Patents.
US5971920A
Expired / Lapsed
US
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Surgical retractor
Assignee: Individual
•
Filing: 1997-06-18
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Granted: 1999-10-26
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Expires: 2017-06-18
Abstract
Abstract A surgical retractor, particularly suitable for soft tissue surgery such as plastic surgical procedures. The retractor has an elongate planar portion with a proximal end and a distal end, a main body portion therebetween, an upper surface and a bottom surface. The distal end of the retractor has a generally semi-circular shape, and has teeth extending from the perimeter thereof which extend above the upper surface of the retractor. The plurality of teeth are generally triangular in shape with apexes extending upwardly from the plane of the upper surface of the retractor and the teeth are smooth along their edges and apexes. The retractor is formed of generally rigid, yet malleable material, such as metal or plastic.
Inventors
- 👤 Gunther Peter Nagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:43
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
64 words
A surgical retractor, consisting of: an elongate planar portion with a proximal end and a distal end, a main body portion therebetween, and an upper surface and a lower surface, wherein the distal end of the retractor has a generally semi-circular shape and has a plurality of protrusions comprising teeth which extend generally upwardly around a perimeter of the generally semi-circular shaped distal end.
Claim 2
Dependent Claim
64 words
A surgical retractor, consisting of: an elongate planar portion with a proximal end and a distal end, a main body portion therebetween, and an upper surface and a lower surface, wherein the distal end of the retractor has a generally semi-circular shape and has a plurality of protrusions comprising teeth which extend generally upwardly around a perimeter of the generally semi-circular shaped distal end.
Claim 3
Dependent Claim
30 words
The surgical retractor of claim 1, wherein the plurality of protrusions are generally triangular in shape with apexes extending upwardly from the plane of the upper surface of the retractor.
Claim 4
Dependent Claim
14 words
The surgical retractor of claim 1, wherein the plurality of teeth have smooth edges.
Claim 5
Dependent Claim
17 words
The surgical retractor of claim 1, wherein the retractor is formed from generally rigid, yet malleable material.
Claim 6
Dependent Claim
18 words
The surgical retractor of claim 1, wherein the retractor is formed from generally rigid, yet malleable stainless steel.
Claim 7
Dependent Claim
71 words
A surgical retractor, particularly suitable for soft tissue surgery, comprising: an elongate planar portion with a proximal end and a distal end, a main body portion therebetween, an upper surface and a lower surface, wherein the distal end of the retractor has a generally semi-circular shape, and has a plurality of teeth extending from a perimeter of the generally semi-circular distal end and extending above the upper surface of the retractor.
Claim 8
Dependent Claim
71 words
A surgical retractor, particularly suitable for soft tissue surgery, comprising: an elongate planar portion with a proximal end and a distal end, a main body portion therebetween, an upper surface and a lower surface, wherein the distal end of the retractor has a generally semi-circular shape, and has a plurality of teeth extending from a perimeter of the generally semi-circular distal end and extending above the upper surface of the retractor.
Claim 9
Dependent Claim
40 words
The retractor of claim 6, wherein the plurality of teeth are generally triangular in shape with apexes extending upwardly from a plane of the upper surface of the retractor, and wherein the plurality of teeth have smooth edges and apexes.
Claim 10
Dependent Claim
21 words
The retractor of claim 6, wherein the retractor is formed from generally rigid, yet malleable material, selected from metal and plastics.
Claim 11
Dependent Claim
18 words
The surgical retractor of claim 6, wherein the retractor is formed from generally rigid, yet malleable stainless steel.
References Cited (Backward Citations)
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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) | 2002-10-25 | 2003-04-26 | 2003-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-25 | 2007-04-26 | 2007-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-25 | 2011-04-26 | 2011-10-26 | $7700.00 | Window Closed / Lapsed |