Method and apparatus for follicular extraction and transplantation

• US 7,261,721 B2
• Filed: 12/16/2002
• Issued: 08/28/2007
• Est. Priority Date: 12/16/2002
• Status: Expired due to Fees

• Current Assignee: Alan S. Feller
• Original Assignee: Alan S. Feller
• Inventors: Feller, Alan S.
• Primary Examiner(s): Hayes; Michael J.
• Assistant Examiner(s): NGUYEN, VI X
• Application Number:
  US10/320,759
• Publication Number:
  US 20040116942A1
• Time in Patent Office: 1,716 Days
• Field of Search: 606/132, 606/133, 606/167, 606/183, 606/184, 606/185, 606/186, 606/187, 604/48, 604/49, 604 59- 60, 128/898, 623/15, 600/566, 600/567
• US Class Current: 606/133
• CPC Class Codes: A61B 10/0266 means for severing sample
• CPC Class Codes: A61B 10/0283 with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe A61B10/025, A61B10/0266 take precedence
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/00752 Hair removal or transplantation
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61F 2/10 Hair or skin implants
• CPC Class Codes: A61M 1/79 Filters for solid matter specially adapted for dental use A61C17/065

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.

Claims

1. A method of extracting follicular units comprising the steps of:

utilizing an apparatus with a generally elongated handle (12), which comprises a tapering portion (14) at an end thereof,

partially inserting a generally cylindrical biopsy punch (16), which is removably attached to the tapering portion of the handle (14), around a target follicular unit,

inserting a perforator (18) around the target follicular unit, the perforator affixed to the punch (16), comprising an annular portion (18A), which comprises an open end to allow the same to fit around the punch (16), the perforator further comprising a plurality of spike members (18B), which extend along the vertical axis of the punch, generally parallel thereto, the perforator also comprising an extended member (18C), which is of a shape corresponding to the tapering portion of the handle (14) and lower portion of the handle (12) and abutting same, the end of the extended member (18C) extending outwardly from the handle to allow a user to engage the same and slide the perforator down the punch, to engage a patient'"'"'s scalp, providing a series of small apertures resulting in a perforation thereon, and

utilizing a suction means affixed to a butt end of the handle (12), which functions to vacuum extracted follicular units towards a guard member (24), which contains follicular units and prevents same from entering an aperture (22) into the handle.

2. The method as described in claim 1, utilizing a 1 mm dermal biopsy punch.

3. The method as described in claim 1, utilizing a perforator which comprises at least four spikes thereon.

4. The method as described in claim 1, wherein the punch is inserted to approximately one half the depth of the follicular unit.

5. The method as described in claim 1, utilizing a handle constructed of a polymeric material.

6. The method as described in claim 1, utilizing a punch constructed of a metallic material.