US5562693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting blade assembly for a surgical scissors
Assignee: Alcon Research LLC
•
Filing: 1995-08-11
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Granted: 1996-10-08
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Expires: 2015-08-11
Abstract
Abstract The present invention includes a stationary outer blade and a rotating inner cutting blade. A unique blade design and geometry allows clean, smooth cuts in fibrous tissue.
Inventors
- 👤 Thomas E. Devlin
- 👤 Kristin W. Grube
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:49
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3201; A61B17/320016; A61B17/32002
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
56 words
A cutting blade assembly, comprising: a) an inner cutter rod; b) an outer probe tube; c) an inner cutting blade attached to the inner cutter rod at a first angle of between 40° and 50°; and d) and outer cutting blade attached to the outer probe tube at a second angle of between 120° and 130°.
Claim 2
Dependent Claim
56 words
A cutting blade assembly, comprising: a) an inner cutter rod; b) an outer probe tube; c) an inner cutting blade attached to the inner cutter rod at a first angle of between 40° and 50°; and d) and outer cutting blade attached to the outer probe tube at a second angle of between 120° and 130°.
Claim 3
Dependent Claim
12 words
The assembly of claim 1 wherein the first angle is 45° 30'.
Claim 4
Dependent Claim
11 words
The assembly of claim 1 wherein the second angle is 126°.
Claim 5
Dependent Claim
21 words
The assembly of claim 1 wherein the inner cutting blade has a first length of between 0.05 inches and 0.15 inches.
Claim 6
Dependent Claim
20 words
The assembly of claim 1 wherein the outer cutting blade has a length of between 0.08 inches and 0.14 inches.
Claim 7
Dependent Claim
26 words
The assembly of claim 1 wherein the inner cutter rod, the outer probe tube, the inner cutting blade and the outer cutting blade comprise stainless steel.
Claim 8
Dependent Claim
21 words
The assembly of claim 1 further comprising a means fixed to the inner cutting rod for rotating the inner cutter rod.
Claim 9
Dependent Claim
73 words
A cutting blade assembly, comprising: a) a stainless steel inner cutter rod; b) an outer probe tube; c) an inner cutting blade attached to the inner cutter rod at a first angle of between 40° and 50°; d) and outer cutting blade attached to the outer probe tube at a second angle of between 120° and 130°; and f) a means fixed to the inner cutting rod for rotating the inner cutter rod.
Claim 10
Dependent Claim
73 words
A cutting blade assembly, comprising: a) a stainless steel inner cutter rod; b) an outer probe tube; c) an inner cutting blade attached to the inner cutter rod at a first angle of between 40° and 50°; d) and outer cutting blade attached to the outer probe tube at a second angle of between 120° and 130°; and f) a means fixed to the inner cutting rod for rotating the inner cutter rod.
Claim 11
Dependent Claim
12 words
The assembly of claim 8 wherein the first angle is 45° 30'.
Claim 12
Dependent Claim
11 words
The assembly of claim 8 wherein the second angle is 126°.
Claim 13
Dependent Claim
21 words
The assembly of claim 8 wherein the inner cutting blade has a first length of between 0.05 inches and 0.15 inches.
Claim 14
Dependent Claim
20 words
The assembly of claim 8 wherein the outer cutting blade has a length of between 0.08 inches and 0.14 inches.
Claim 15
Dependent Claim
26 words
The assembly of claim 8 wherein the inner cutter rod, the outer probe tube, the inner cutting blade and the outer cutting blade comprise stainless steel.
Claim 16
Dependent Claim
25 words
The assembly of claim 8 wherein the inner cutting blade and the outer cutting blade have a thickness of between 0.007 inches and 0.009 inches.
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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) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |