Follicular extraction method
A method for the extraction of follicular units from a donor area on a patient. The method includes scoring the outer skin layers with a sharp punch, and then inserting a blunt punch into the incision to separate the hair follicle from the surrounding tissue and fatty layer. The method will significantly decrease the amount of follicular transection and increase the rate at which follicular units can be extracted.
1. A method for the extraction of a follicular unit from a donor area, comprising the steps of:
scoring a portion of a donor area with a sharp scoring punch to form a scored incision having a first depth;
inserting a blunt dissecting punch that is less sharp than the scoring punch into said scored incision to a second depth that is greater than said first depth to dissect tissue to separate a follicular unit for removal from the donor area, wherein said blunt dissecting punch comprises a dissecting distal tip and a lumen at the dissecting distal tip; and
wherein the sharp scoring punch is disposed within the blunt dissecting punch lumen.
2. The method as recited in claim 1 , wherein said dissecting distal tip is serrated.
3. The method recited in claim 1 , wherein said scored incision is substantially circular.
4. The method recited in claim 1 , wherein said scored incision has a diameter of from about 0.1 mm to about 1.1 mm.
5. The method recited in claim 1 , wherein said scored incision has a diameter of from about 0.7 mm to about 1 mm.
6. The method recited in claim 1 , wherein said first depth is not greater than about 1.5 mm.
7. The method recited in claim 1 , wherein said first depth is from about 0.3 mm to about 1.5 mm.
8. The method recited in claim 1 , wherein said second depth is from about 1.5 mm to about 8 mm.
9. The method recited in claim 1 , wherein said second depth is from about 4 mm to about 7 mm.
10. The method recited in claim 1 , wherein said blunt dissecting punch is removed from the donor area before the follicular unit is removed from the donor area.
11. The method recited in claim 1 , further comprising removing the follicular unit from the donor area.
12. The method recited in claim 11 , wherein said removing step comprises using suction or removing the follicular unit using forceps.
13. The method recited in claim 11 , further comprising the step of separating a bottom portion of said follicular unit from a fatty layer of the donor area before said removing step.
14. The method recited in claim 11 , wherein said removing step comprises removing said follicular unit at least in part by applying a force to a top end of said follicular unit.
15. The method recited in claim 1 , wherein said inserting step comprises rotating said blunt dissecting punch about a primary axis of said blunt dissecting punch.
16. The method recited in claim 1 , further comprising the step of transplanting said follicular unit.
17. The method recited in claim 1 , wherein said dissecting distal tip comprises an outer diameter that is tapered.
18. The method recited in claim 1 , wherein said dissecting distal tip comprises a rounded annular dissecting edge.
19. The method recited in claim 1 , wherein at least one of said scoring step and said inserting step is mechanized.
20. The method recited in claim 1 , wherein said blunt dissecting punch lumen has an inner diameter of from about 0.8 mm to about 1.0 mm.
21. The method recited in claim 1 , wherein said inserting step comprises advancing said dissecting distal tip through a dermis and into a fatty layer of said donor area.
22. The method recited in claim 1 , wherein said inserting step separates fibrous attachments surrounding said follicular unit to leave said follicular unit attached to a fatty layer of the donor area at its base.
23. The method recited in claim 1 , further comprising limiting a depth of insertion of at least one of said sharp scoring punch and said blunt dissecting punch.
24. A method for the extraction of a follicular unit from a donor area, comprising the steps of:
scoring a portion of a donor area with a sharp scoring punch to form a scored incision having a first depth of not greater than about 1.5 mm;
inserting a blunt dissecting punch that is less sharp than said scoring punch into the scored incision to a second depth of at least about 4 mm to facilitate removal of a follicular unit, said blunt dissecting punch comprising a distal annular dissecting edge that forms a lumen, wherein the sharp scoring punch is disposed within the blunt dissecting punch lumen; and
making an incision in a recipient area to transplant said follicular unit in the recipient area.
25. The method recited in claim 24 , further comprising removing said follicular unit at least in part by applying a force to a top end of said follicular unit.
26. The method recited in claim 24 , further comprising removing said follicular unit using forceps.
27. The method recited in claim 24 , wherein an outer diameter of said blunt dissecting punch proximate to said distal annular dissecting edge is tapered.
28. The method recited in claim 24 , wherein said distal annular dissecting edge is rounded.
29. The method recited in claim 24 , wherein at least one of said scoring step and the inserting step is mechanized.
30. The method recited in claim 24 , further comprising limiting a depth of insertion of at least one of said sharp scoring punch and said blunt dissecting punch.
31. The method recited in claim 24 , wherein said blunt dissecting punch lumen has an inner diameter of from about 0.8 mm to about 1.0 mm.
32. The method recited in claim 24 , wherein said inserting step comprises advancing said distal annular dissecting edge through a dermis and into a fatty layer of said donor area.
33. The method recited in claim 24 , wherein said inserting step separates fibrous attachments surrounding said follicular unit to leave said follicular unit attached to a fatty layer of the donor area at its base.
34. A method for the extraction of a follicular unit plug from a donor area, comprising the steps of:
penetrating a portion of a donor area with a sharp scoring punch to form an incision having a first depth;
advancing a blunt distal tip of a blunt dissecting punch through the incision to a second depth that is greater than said first depth and forming a follicular unit plug comprising a follicular unit, the blunt dissecting punch comprising a lumen at said blunt distal tip and wherein said blunt distal tip guides the follicular unit plug into said lumen for removal from the donor area; and
wherein the sharp scoring punch is disposed within the blunt dissecting punch lumen.
35. The method recited in claim 34 , wherein said first depth is not greater than about 1.5 mm.
36. The method recited in claim 35 , wherein said second depth is from about 4 mm to about 7 mm.
37. The method recited in claim 34 , further comprising removing said follicular unit plug using forceps.