Patent US5439475A successfully refreshed from Google Patents.
US5439475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tissue grafting method using an apparatus with multiple tissue receiving receptacles
Assignee: Individual
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Filing: 1991-07-03
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Granted: 1995-08-08
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Expires: 2011-07-03
Abstract
Abstract A cosmetic procedure for hair transplantation is carried out with an apparatus (50) comprising a magazine (52) with a plurality of compartments (53) each containing a sample of de-epithelialized tissue having at least one hair shaft attached to a hair bulb. The magazine (52) is loaded in an apparatus (50) having a tapered hollow lumen (57) aligned with a pusher rod (56). With the hollow lumen (57) penetrating a recipient graft site to a predetermined depth and the pusher rod (56), the hollow lumen (57) and a compartment (53) in axial alignment, pusher rod (56) moves through compartment (53) and into the hollow lumen (57) to deposit a portion of donor tissue in the recipient graft site.
Inventors
- 👤 David M. Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:23
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3468; A61B17/32; A61B17/3205; A61B17/32053; A61F; A61F2/00; A61F2/02; A61F2/10; A61B2017/00743; A61B2017/00747; A61B2017/00752; A61B2017/320064
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
204 words
A method for grafting animal tissue from a donor site to a recipient graft site with an apparatus having storage means comprising a plurality of receptacles, each receptacle being configured to receive a prepared portion of tissue, transfer means adapted to transfer said portions of tissue from said receptacles to said recipient graft site, said transfer means being operatively connected to said receptacles, and hollow penetration means extending along said transfer means for penetrating said recipient graft site to a predetermined depth to facilitate deposition of said prepared portion of tissue in a selected region of said recipient graft site, said method comprising the steps of: removing a sample of donor tissue from a donor site; dividing said sample into a plurality of donor tissue portions of predetermined dimensions; loading said plurality of tissue portions into said receptacles of said storage means; inserting said hollow penetration means to a predetermined depth in said recipient graft site; actuating said transfer means to transfer a donor tissue portion from one of said receptacles via said hollow penetration means to said recipient graft site; and withdrawing said hollow penetration means from said recipient graft site to leave said donor tissue portion embedded in said recipient graft site.
Claim 2
Independent Claim
204 words
A method for grafting animal tissue from a donor site to a recipient graft site with an apparatus having storage means comprising a plurality of receptacles, each receptacle being configured to receive a prepared portion of tissue, transfer means adapted to transfer said portions of tissue from said receptacles to said recipient graft site, said transfer means being operatively connected to said receptacles, and hollow penetration means extending along said transfer means for penetrating said recipient graft site to a predetermined depth to facilitate deposition of said prepared portion of tissue in a selected region of said recipient graft site, said method comprising the steps of: removing a sample of donor tissue from a donor site; dividing said sample into a plurality of donor tissue portions of predetermined dimensions; loading said plurality of tissue portions into said receptacles of said storage means; inserting said hollow penetration means to a predetermined depth in said recipient graft site; actuating said transfer means to transfer a donor tissue portion from one of said receptacles via said hollow penetration means to said recipient graft site; and withdrawing said hollow penetration means from said recipient graft site to leave said donor tissue portion embedded in said recipient graft site.
Claim 3
Dependent Claim
17 words
A method as claimed in claim 1 wherein said donor tissue includes organs associated with subcutaneous tissue.
Claim 4
Dependent Claim
18 words
A method as claimed in claim 2 wherein said donor tissue includes hair shafts attached to hair bulbs.
Claim 5
Dependent Claim
15 words
A method as claimed in claim 3 wherein said donor tissue includes an epithelial layer.
Claim 6
Dependent Claim
13 words
A method as claimed in claim 3 wherein said donor tissue is de-epithelialised.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein said donor tissue includes hair follicles.
References Cited (Backward Citations)
GB840276A
Cited
US3867942A
Cited
SU646986A1
Cited
FR2400355A1
Cited
US4451254A
Cited
DE3537514A1
Cited
US4919664A
Cited
GB2190845A
Cited
US4787384A
Cited
US4969903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-07 | 1999-02-06 | 1999-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-07 | 2003-02-06 | 2003-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-07 | 2007-02-06 | 2007-08-08 | $7700.00 | Window Closed / Lapsed |