Surgery – Instruments – Means for removal of skin or material therefrom
Reexamination Certificate
2007-08-28
2007-08-28
Hayes, Michael J. (Department: 3734)
Surgery
Instruments
Means for removal of skin or material therefrom
C128S898000
Reexamination Certificate
active
10320759
ABSTRACT:
Apparatus and method are for extraction of follicular units. A dermal biopsy punch is utilized in combination with a suction device for extraction purposes. The use of suction to extract the follicular unit allows for distribution of the forces over a large area of the unit, helping to keep the unit intact. A perforating device, affixed to the punch, is utilized to weaken the structural integrity of the extraction area. The perforating device, having a plurality of spike members which surround the follicular unit and are inserted into the skin at a small, previously determined depth, reduces the holding tissue around the unit. The small number of relatively thin spikes of the perforating device help keep the follicular unit undamaged. Because suction is utilized to extract the follicular unit, the distal end of the apparatus may have a guard which functions to prevent the extracted follicular units from being vacuumed further therein.
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Hayes Michael J.
Kenyon & Kenyon LLP
Nguyen Victor
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