US3699969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for implanting natural or synthetic fibers into living tissue
Assignee: Individual
•
Filing: 1971-06-01
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Granted: 1972-10-24
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Expires: 1991-06-01
Abstract
Abstract A method for implanting natural or synthetic fibers directly into the skin, particularly the scalp. The method is effected by the use of a concentric dual needle arrangement that comprises a first, outer needle and a second, inner needle slideably mounted within the outer needle. The fibrous material to be implanted is threaded within the inner needle, the latter then being ''''loaded'''' or mounted within the bore of the outer needle. The two needles are then inserted simultaneously into the scalp. The outer needle is withdrawn first to expose the fibrous strands to the tissue. The inner needle is next withdrawn leaving the fibrous strands implanted in the tissue. The method is highly effective, safe and requires a minimum of manipulative steps.
Inventors
- 👤 William Glenn Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:09
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/10; A61B; A61B17/00; A61B2017/00743; A61B2017/00747; A61B2017/00752
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
233 words
A method for implanting natural or synthetic fibers into living tissue comprises the steps of providing an outer needle; said outer needle having a longitudinal bore extending therethrough and a sharp tip at a forward end thereof; providing an inner needle, said inner needle being adapted to be reciprocably mounted in said bore of said outer needle and having a longitudinal bore extending therethrough and a forward end; providing an enlargement on the end of at least one fibrous strand selected from the group consisting of natural and synthetic fibers, said enlargement having a diameter greater than the diameter of said bore of said inner needle; inserting said fibrous strand into the bore of said inner needle with said enlargement adjacent the forward end of said inner needle; inserting said inner needle and fibrous strand into the bore of said outer needle to a position in which said forward end of said inner needle is adjacent the tip of said outer needle and said enlargement is within said tip; simultaneously inserting the outer and inner needles into living tissue and to a depth in which the enlargement is below the surface of said tissue; withdrawing said outer needle from said tissue while holding said inner needle and fibrous strand against movement relative to said tissue; and withdrawing said inner needle from said tissue whereby said enlargement retains said fibrous strand in said tissue.
Claim 2
Independent Claim
233 words
A method for implanting natural or synthetic fibers into living tissue comprises the steps of providing an outer needle; said outer needle having a longitudinal bore extending therethrough and a sharp tip at a forward end thereof; providing an inner needle, said inner needle being adapted to be reciprocably mounted in said bore of said outer needle and having a longitudinal bore extending therethrough and a forward end; providing an enlargement on the end of at least one fibrous strand selected from the group consisting of natural and synthetic fibers, said enlargement having a diameter greater than the diameter of said bore of said inner needle; inserting said fibrous strand into the bore of said inner needle with said enlargement adjacent the forward end of said inner needle; inserting said inner needle and fibrous strand into the bore of said outer needle to a position in which said forward end of said inner needle is adjacent the tip of said outer needle and said enlargement is within said tip; simultaneously inserting the outer and inner needles into living tissue and to a depth in which the enlargement is below the surface of said tissue; withdrawing said outer needle from said tissue while holding said inner needle and fibrous strand against movement relative to said tissue; and withdrawing said inner needle from said tissue whereby said enlargement retains said fibrous strand in said tissue.
Claim 3
Dependent Claim
54 words
The method in accordance with claim 1 wherein the steps of providing said enlargement comprising connecting the common ends of two or more of said fibrous strands to a disc-shaped retaining element, said disc having a diameter greater than the bore of said inner needle and less than the bore of said outer needle.
Claim 4
Dependent Claim
15 words
The method in accordance with claim 2 wherein said fibrous strand is a synthetic fiber.
Claim 5
Dependent Claim
45 words
The method in accordance with claim 1 wherein the steps of providing said enlargement comprises tying at least two fibrous strands together adjacent a common end thereof such that said enlargement is larger than the opening formed at the forward end of said inner needle.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |