US4538612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skin preparation method and product
Assignee: NDM Acquisition Corp
•
Filing: 1983-08-29
•
Granted: 1985-09-03
•
Expires: 2003-08-29
Abstract
Abstract Epidermal tissue is prepared and marked prior to attachment thereto of an electrode, such as an electrocardiograph electrode, by gently stroking the epidermal surface with an abrader device having fibers adequately stiff to dislodge cells from the epidermal tissue. The abrader device is sterilized and stored in a protective container prior to use.
Inventors
- 👤 Charles T. Patrick, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:10
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/325; A61B90/00; A61B90/39; A61B2090/3937; A61B2090/395
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
121 words
A product comprising a substantially moisture and air impervious container and a pencil-like device packaged in said container, said pencil-like device comprising a housing and a bundle of relatively stiff fibers gathered together by and retained in the housing, said gathered fibers being stiff enough to dislodge cells from the horny layer of skin and said housing having an opening through which ends of said fibers project outwardly from said housing, said container and said device being sterilized by irradiation so that upon removal of said device from said container said device will be substantially sterilized and useful for stroking the skin of a patient in preparation for application of an electrolyte for bridging the stroked skin to a signal conductor.
Claim 2
Dependent Claim
121 words
A product comprising a substantially moisture and air impervious container and a pencil-like device packaged in said container, said pencil-like device comprising a housing and a bundle of relatively stiff fibers gathered together by and retained in the housing, said gathered fibers being stiff enough to dislodge cells from the horny layer of skin and said housing having an opening through which ends of said fibers project outwardly from said housing, said container and said device being sterilized by irradiation so that upon removal of said device from said container said device will be substantially sterilized and useful for stroking the skin of a patient in preparation for application of an electrolyte for bridging the stroked skin to a signal conductor.
Claim 3
Dependent Claim
13 words
The product of claim 1 wherein said bundle of fibers comprises fiberglass fibers.
Claim 4
Dependent Claim
26 words
The product of claim 1 wherein said fibers are sufficiently stiff to cause a whitening of the skin when they are gently stroked along the skin.
Claim 5
Dependent Claim
13 words
The product of claim 3 wherein said bundle of fibers comprises fiberglass fibers.
Claim 6
Independent Claim
114 words
The method of preparing a subject for monitoring or treatment with an electrode, which method comprises the steps of: gently stroking with a bundle of fibers a portion of an outer layer of the skin of the subject in a region overlying tissue to which electrical contact is to be made, said bundle of fibers being stiff enough to dislodge cells from the horny layer of skin and, in addition, being stiff enough to cause the stroked portion of skin to be marked by a change of color for moments following such stroking; and thereafter locating the marked surface of skin and applying thereto electrolyte for bridging the marked skin to a signal conductor.
Claim 7
Independent Claim
114 words
The method of preparing a subject for monitoring or treatment with an electrode, which method comprises the steps of: gently stroking with a bundle of fibers a portion of an outer layer of the skin of the subject in a region overlying tissue to which electrical contact is to be made, said bundle of fibers being stiff enough to dislodge cells from the horny layer of skin and, in addition, being stiff enough to cause the stroked portion of skin to be marked by a change of color for moments following such stroking; and thereafter locating the marked surface of skin and applying thereto electrolyte for bridging the marked skin to a signal conductor.
Claim 8
Dependent Claim
14 words
The method of claim 5 in which the stroked portion of skin is whitened.
Claim 9
Independent Claim
50 words
The method of preparing the skin of a patient in a region to be examined or treated, said method comprising the steps of forming a bundle of fibers, sterilizing said fibers, and stroking the skin of the patient with ends of said fibers to remove epidermal cells from such skin.
Claim 10
Independent Claim
50 words
The method of preparing the skin of a patient in a region to be examined or treated, said method comprising the steps of forming a bundle of fibers, sterilizing said fibers, and stroking the skin of the patient with ends of said fibers to remove epidermal cells from such skin.
Claim 11
Dependent Claim
29 words
The method of claim 7 further including the step of storing said fibers in a protective container, said fibers being sterilized by irradiating said fibers while in said container.
Claim 12
Dependent Claim
12 words
The method of claim 8 wherein said container is a polyethylene bag.
Claim 13
Dependent Claim
25 words
The method of claim 7 including the step of confining said fibers in a housing having an opening through which ends of said fibers project.
Claim 14
Dependent Claim
36 words
The method of claim 7 wherein the fibers of said bundle, when collected into said bundle, support one another to resist flexing of said fibers when an end of said bundle is stroked across said skin.
Claim 15
Dependent Claim
11 words
The method of claim 7 wherein said fibers are glass fibers.
References Cited (Backward Citations)
US583098A
Cited
US34677A
Cited
US1268343A
Cited
US2712823A
Cited
US2881763A
Cited
US2887112A
Cited
US3505993A
Cited
US3447181A
Cited
US3613143A
Cited
US3774592A
Cited
US3911906A
Cited
US4004578A
Cited
US4311152A
Cited
US4274419A
Cited
US4462136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-02 | 1989-03-04 | 1989-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-02 | 1993-03-04 | 1993-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-02 | 1997-03-04 | 1997-09-03 | $7700.00 | Window Closed / Lapsed |