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US4160453A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for implanting hair

Assignee: HAIREGENICS Inc
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Filing: 1977-09-06
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Granted: 1979-07-10
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Expires: 1997-09-06
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Abstract

Abstract A method is disclosed for implanting hair into human skin comprising the steps of tieing a knot into a hair with the knot defining an interstice through which skin tissue may subsequently grow thereby anchoring the hair firmly in place, loading a needle by placing the hair knot in a hollow end of the needle and extending the hair from the knot through a notch formed in a surface of the needle end, inserting the loaded needle into the skin, and extracting the needle from the skin. Apparatus is also disclosed for implanting hair having a bulbous end into human skin which apparatus comprises a tubular needle having a beveled end providing a pointed tip for piercing the skin and a notch formed in the beveled end through which the hair may extend with the bulbous hair end held within the tubular needle in engagement with an inner surface of the needle adjacent the beveled end notch. A method is further described for determining an optimum size of an interstice defined by a knot on a hair to be implanted into human skin. The method comprises the steps of tieing a knot defining a spacial interstice of determined size in each of a plurality of hairs with the size of each knot interstice differing substantially from that of the interstices of the other knots; implanting each of the hair knots into the skin of a human; and subsequently exerting an extraction force on each hair and observing which hair required the greatest extraction force to be extracted without hair breakage.

Inventors

  • 👤 Paul W. Miller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 12:09
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/10

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 130 words
Apparatus for implanting hair having a bulbous end into human skin comprising a tubular needle having a beveled cylindrical end providing a pointed tip for penetrating the skin and a notch formed in said tubular needle beveled end through which the hair may extend with the bulbous hair end held within the tubular needle in engagement with an inner surface of the needle adjacent the beveled end notch; a cylindrical push rod slidably disposed within said tubular needle; a first handle to which said hollow needle is secured; a second handle mounted in mutual sliding engagement with said first handle to which second handle said push rod is secured; and means for releasably holding a hair extending through said needle notch in a taut configuration firmly against said first handle.
Claim 2
Dependent Claim 130 words
Apparatus for implanting hair having a bulbous end into human skin comprising a tubular needle having a beveled cylindrical end providing a pointed tip for penetrating the skin and a notch formed in said tubular needle beveled end through which the hair may extend with the bulbous hair end held within the tubular needle in engagement with an inner surface of the needle adjacent the beveled end notch; a cylindrical push rod slidably disposed within said tubular needle; a first handle to which said hollow needle is secured; a second handle mounted in mutual sliding engagement with said first handle to which second handle said push rod is secured; and means for releasably holding a hair extending through said needle notch in a taut configuration firmly against said first handle.
Claim 3
Dependent Claim 24 words
Hair implantation apparatus in accordance with claim 1 wherein said holding means comprises a resilient clip fastened at one end to said first handle.

References Cited (Backward Citations)

DE8707C Cited
US2318235A Cited
GB730994A Cited
US2887076A Cited
US3144844A Cited
US3802359A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-07-09 1983-01-08 1983-07-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-07-09 1987-01-08 1987-07-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-07-09 1991-01-08 1991-07-10 $7700.00 Window Closed / Lapsed

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