Patent US4712546A successfully refreshed from Google Patents.
US4712546A
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Cutting instrument for nasal surgery which cuts parallel to its length
Assignee: Individual
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Filing: 1982-03-11
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Granted: 1987-12-15
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Expires: 2002-03-11
Abstract
Abstract A cutting instrument for nasal surgery has an elongated portion, such as a handle, extending along a first direction and a first end which is intended to be pointed into a nostril during nasal surgery. A cutting extension extends from the elongated portion at approximately ninety degrees from the first direction. The cutting extension has first and second cutting edges which point in opposite directions parallel to the first direction and which extend in the second direction. In a preferred embodiment the cutting extension is placed approximately at the first end of the elongated portion and it has a non-cutting end which extends beyond the first and second cutting edges away from the elongated portion in the second direction.
Inventors
- 👤 Joel M. Noe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:35
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
A cutting instrument for human nasal surgery consisting of: an elongated portion extending along a first direction and having a first end means which is to be placed into a nostril during nasal surgery: a single cutting extension extending from one side of said elongated portion in a second direction from said elongated portion at approximately ninety degrees from said first direction which has first and second cutting edges which point in opposite directions parallel to said first direction and which extend in said second direction and which extension has a blunted non cutting end which extends beyond said cutting edges away from said elongated portion in said second direction.
Claim 2
Dependent Claim
110 words
A cutting instrument for human nasal surgery consisting of: an elongated portion extending along a first direction and having a first end means which is to be placed into a nostril during nasal surgery: a single cutting extension extending from one side of said elongated portion in a second direction from said elongated portion at approximately ninety degrees from said first direction which has first and second cutting edges which point in opposite directions parallel to said first direction and which extend in said second direction and which extension has a blunted non cutting end which extends beyond said cutting edges away from said elongated portion in said second direction.
Claim 3
Dependent Claim
21 words
A cutting instrument according to claim 1 in which said elongated portion is a stem designed for attachment to a handle.
Claim 4
Dependent Claim
25 words
A cutting instrument according to claim 1 in which said cutting extension is less than three and one-half millimeters in width along said first direction.
Claim 5
Dependent Claim
27 words
A cutting instrument according to claim 1 in which each of said first and second cutting edges extend in said second direction between two and six millimeters.
Claim 6
Dependent Claim
23 words
A cutting instrument according to claim 1 in which said cutting extension is placed approximately at said first end of said elongated portion.
References Cited (Backward Citations)
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Cited
SU200727A1
Cited
US2569844A
Cited
US2743519A
Cited
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Cited
US3241236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |