Surgery – Instruments – Means for removal of skin or material therefrom
Patent
1999-05-21
2000-02-22
Smith, Jeffrey A.
Surgery
Instruments
Means for removal of skin or material therefrom
A61B 1750
Patent
active
06027512&
ABSTRACT:
A hair follicle harvesting device which is characterized by a pencil-like harvesting tube fitted at the distal end with a needle of selected bore size for insertion over one or more hairs and hair follicles in a scalp flap and puncturing the scalp flap. The harvesting tube is connected at the proximal end to a source of saline solution and accommodates a flow of saline solution through a venturi or tube constriction by operation of a pump to remove the encircled and loosened hair follicles as micrografts, minigrafts and hair plugs from the scalp flap. The hair follicles are caused to flow through the needle and into the saline solution stream by reduced pressure responsive to flow of the saline solution through the venturi or tube constriction located near the base of the needle in the harvesting tube. The saline stream containing the hair follicles is then directed from the harvesting tube through a screen in a disposable follicle harvesting apparatus or a screen in a follicle collection vessel, which retains the hair follicles on the screen and returns the saline solution to the pump for continued circulation through the harvesting tube. The screen is periodically removed from the harvesting apparatus or follicle collection vessel to collect the harvested hair follicles, which are then used in conventional hair transplant procedures.
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Harrison John M
Robert Eduardo C.
Smith Jeffrey A.
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