US5116346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable dermal curette
Assignee: Acuderm Inc
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Filing: 1991-05-03
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Granted: 1992-05-26
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Expires: 2011-05-03
Abstract
Abstract A disposable dermal curette for scraping lesions from the surface of a patient's skin, comprising a generally cylindrical plastic handle having a proximal end portion, a distal end portion, a mid-section portion with a flattened section recessed relative to the proximal end and distal end portions, and a generally circular or loop-shaped working element, with at least one cutting edge, attached to the proximal end portion. The distal end portion is provided with a textured surface and, for maximum control and proper balance, additional textured surfaces may be provided on the mid-section and proximal end portions.
Inventors
- 👤 Charles R. Yeh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:18
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/32093; A61B17/3211; A61B17/3213; A61B17/3205; A61B17/3207; A61B17/320708; A61B2017/00743; A61B2017/00747; A61B2017/00761; A61B2017/320004; A61B2017/320012
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
190 words
A disposable dermal curette comprising: a generally cylindrical plastic handle having a proximal end portion, a distal end portion and a mid-section portion in between said end portions; the proximal end portion of the handle tapering inwardly from a point near the mid-section portion to a point near a flat-nosed end of the handle; the distal end portion being generally cylindrical in shape and having a textured surface extending substantially along its entire length; the mid-section portion having a flattened surface on the top side of the handle, with the flattened surface being recessed relative to the adjacent sections of the proximal end and distal end portions, the remainder of the mid-section portion being generally cylindrical in shape; said mid-section portion and recessed flattened surface being substantially centrally located on said handle between said proximal end and distal end portions and extending approximately one-half of the total length of said handle; and, a working element having a generally circular or loop-shaped cutting edge for scraping fixedly attached directly to the flat-nosed end of the proximal end of the handle, said cutting edge being disposed substantially adjacent to said flat-nosed end.
Claim 2
Dependent Claim
190 words
A disposable dermal curette comprising: a generally cylindrical plastic handle having a proximal end portion, a distal end portion and a mid-section portion in between said end portions; the proximal end portion of the handle tapering inwardly from a point near the mid-section portion to a point near a flat-nosed end of the handle; the distal end portion being generally cylindrical in shape and having a textured surface extending substantially along its entire length; the mid-section portion having a flattened surface on the top side of the handle, with the flattened surface being recessed relative to the adjacent sections of the proximal end and distal end portions, the remainder of the mid-section portion being generally cylindrical in shape; said mid-section portion and recessed flattened surface being substantially centrally located on said handle between said proximal end and distal end portions and extending approximately one-half of the total length of said handle; and, a working element having a generally circular or loop-shaped cutting edge for scraping fixedly attached directly to the flat-nosed end of the proximal end of the handle, said cutting edge being disposed substantially adjacent to said flat-nosed end.
Claim 3
Dependent Claim
16 words
The dermal curette of claim 1, wherein the working element is provided with two cutting edges.
Claim 4
Dependent Claim
15 words
The dermal curette of claim 1, wherein the handle is composed of high impact polystyrene.
Claim 5
Dependent Claim
210 words
A disposable dermal curette comprising: a generally cylindrical plastic handle having a proximal end portion, a distal end portion and mid-section portion in between said end portions; the proximal end portion of the handle tapering inwardly from a point near the mid-section portion to a flat-nosed end of the handle and having a textured surface extending substantially the length of the proximal end portion; the distal end portion being generally cylindrical in shape and having a textured surface extending substantially along its entire length; the mid-section portion having a flattened surface on the top side of the handle, with the flattened surface being recessed relative to the adjacent sections of the proximal end and distal end portions, the remainder of the mid-section portion being generally cylindrical in shape and having a finely textured surface extending along its width; said mid-section portion and recessed flattened surface being substantially centrally located on said handle between said proximal end and distal end portions and extending approximately one-half of the total length of said handle; and, a working element having a generally circular or loop-shaped cutting edge for scraping fixedly attached directly to the flat-nosed end of the proximal end of the handle, said cutting edge being disposed substantially adjacent to said flat-nosed end.
Claim 6
Dependent Claim
210 words
A disposable dermal curette comprising: a generally cylindrical plastic handle having a proximal end portion, a distal end portion and mid-section portion in between said end portions; the proximal end portion of the handle tapering inwardly from a point near the mid-section portion to a flat-nosed end of the handle and having a textured surface extending substantially the length of the proximal end portion; the distal end portion being generally cylindrical in shape and having a textured surface extending substantially along its entire length; the mid-section portion having a flattened surface on the top side of the handle, with the flattened surface being recessed relative to the adjacent sections of the proximal end and distal end portions, the remainder of the mid-section portion being generally cylindrical in shape and having a finely textured surface extending along its width; said mid-section portion and recessed flattened surface being substantially centrally located on said handle between said proximal end and distal end portions and extending approximately one-half of the total length of said handle; and, a working element having a generally circular or loop-shaped cutting edge for scraping fixedly attached directly to the flat-nosed end of the proximal end of the handle, said cutting edge being disposed substantially adjacent to said flat-nosed end.
Claim 7
Dependent Claim
52 words
The dermal curette of claim 4, wherein the textured surfaces of the proximal end and distal end portions are grooved or ribbed surfaces and the finely textured surface of the mid-section portion is a series of fine grooves or ribs extending along the width of the cylindrical surface of the mid-section portion.
Claim 8
Dependent Claim
31 words
The dermal curette of claim 5, wherein the fine grooves or ribs of the mid-section portion extend down along the crests of the grooves or ribs of the distal end portion.
Claim 9
Dependent Claim
16 words
The dermal curette of claim 4, wherein the working element is provided with two cutting edges.
Claim 10
Dependent Claim
15 words
The dermal curette of claim 4, wherein the handle is composed of high impact polystyrene.
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) | 1995-05-26 | 1995-11-25 | 1996-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-26 | 1999-11-25 | 2000-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-26 | 2003-11-25 | 2004-05-26 | $7700.00 | Window Closed / Lapsed |