Follicular extraction punch and method

• US 8,202,279 B2
• Filed: 11/09/2006
• Issued: 06/19/2012
• Est. Priority Date: 03/09/2004
• Status: Active Grant

• Current Assignee: John P. Cole
• Original Assignee: John P. Cole
• Inventors: Cole, John P.
• Primary Examiner(s): Severson, Ryan
• Assistant Examiner(s): SIMPSON, SARAH A
• Application Number:
  US11/558,338
• Publication Number:
  US 20070149985A1
• Time in Patent Office: 2,049 Days
• Field of Search: 606/133, 606/131, 606/107, 606/187, 606/184
• US Class Current: 606/133
• 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 17/322 Skin grafting apparatus
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• 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 17/3496 Protecting sleeves or inner probes; Retractable tips for protecting body piercing guide needles A61M25/0612
• CPC Class Codes: A61B 2017/00752 Hair removal or transplantation
• CPC Class Codes: A61B 2017/00902 transparent or translucent
• CPC Class Codes: A61B 2017/00969 used for transplantation
• CPC Class Codes: A61B 2017/3492 against the outside of the body
• CPC Class Codes: A61B 2090/036 abutting on tissue or skin
• CPC Class Codes: A61B 2090/062 penetration depth

Abstract

A method and apparatus disclosed herein may incise into a patient'"'"'s skin to a precise depth and at a specific angle with respect to a surface of the patient'"'"'s to extract individual follicular groups or individual follicular units. An apparatus as disclosed herein may precisely limit a depth of an incision, and perform a circular incision around a hair, follicular unit, or follicular cluster without damaging any hair shafts.

Claims

1. A process comprising:

providing a tubular punch comprising a hollow cylinder having an axis, a first open end, a second open end, an interior space, and an outer diameter not exceeding about 5.0 millimeters, wherein said first end of said tubular punch comprises a cylindrical cutting end which is capable of piercing skin tissue;

applying surgical lubricant to said cylindrical cutting end of said tubular punch;

contacting said cylindrical cutting end to the skin tissue of a mammalian subject, such that a hair on said skin tissue of said mammalian subject is disposed within said interior space, and such that said axis of said cylinder is disposed at a first angle with respect to the surface of said skin tissue of said subject, wherein said first angle is between about 85 degrees and about 95 degrees;

penetrating said skin tissue of said subject with said cylindrical cutting end to an initial penetration depth of at least about 0.05 millimeters but no greater than about 0.3 millimeters;

tilting said tubular punch, at least partially in response to said cylindrical cutting end penetrating said skin tissue to said initial penetration depth, so that said tubular punch is disposed at a second angle with respect to said surface of said skin tissue of said subject, which second angle is selected from the group consisting of;

any angle between about 20 degrees and about 70 degrees or about an angle of hair growth;

further penetrating said skin tissue of said subject with said cylindrical cutting end to a selectable depth of at least about 2 millimeters but no greater than about 7 millimeters while substantially maintaining said tubular punch at said second angle with respect to the surface of said skin tissue of said subject and while maintaining said hair within said interior space to cause follicle(s) within which said hair grows to be disposed within said interior space;

removing said follicle(s) from said subject; and

treating an incision site with an antibiotic ointment or a topical steroid.

2. A process according to claim 1 wherein said first angle is about 90 degrees and wherein said second angle is about 56 degrees.

3. A process according to claim 1 wherein said removing said follicle from said subject further comprises applying a vacuum to said second end of said tubular punch.

4. A process according to claim 1 wherein said removing said follicle from said subject comprises cutting said follicle from said subject.

5. A process according to claim 1 wherein said second angle substantially coincides with said angle of growth of said hair with respect to said surface of the skin tissue of said subject.

6. A process according to claim 1 wherein said causing said cylindrical cutting end to further penetrate said skin tissue of said subject to a selectable depth comprises turning an adjustment screw component of said tubular punch.

7. A process according to claim 1 wherein said treating an incision site with an antibiotic ointment further comprises applying an antibiotic ointment to said incision site at least 2 days after incision.

8. A process according to claim 1 wherein said treating an incision site with an antibiotic ointment further comprises applying said antibiotic ointment or said topical steroid to said incision site at least around the time of said incision.

9. A method comprising:

applying surgical lubricant to a cylindrical cutting end of a tubular punch;

contacting a surface of skin tissue at a first angle with respect to said surface of said skin tissue using said tubular punch;

making an incision about a hair follicle into said surface of skin tissue using said tubular punch;

penetrating said skin tissue with said tubular punch to an initial penetration depth of between about 0.05 millimeters and about 0.3 millimeters;

angling said tubular punch to a second angle with respect to said surface of the skin tissue at least partially in response to said penetrating said skin tissue to said initial penetration depth, wherein said second angle is substantially equal to about an angle of hair growth; and

penetrating said skin tissue to a selectable depth of between about 2.0 millimeters and about 7.0 millimeters while substantially maintaining said tubular punch at said second angle with respect to said surface of said skin tissue and while maintaining said hair follicle within an interior space of said tubular punch;

removing said hair follicle from said skin tissue; and

treating an incision site with an antibiotic ointment or a topical steroid.

10. A method according to claim 9 wherein said first angle is about 90 degrees and wherein said second angle is about 56 degrees.

11. A method according to claim 9 wherein said removing said follicle from said skin tissue further comprises applying a vacuum source to an end of said tubular punch.

12. A method according to claim 9 further comprising;

moving said tubular punch in at least one or more of the following ways;

rotating, oscillating, reciprocating or some combination thereof as said tubular punch is being inserted to said initial penetration depth.

13. A method according to claim 9 further comprising;

moving said tubular punch in at least one or more of the following ways;

rotating, oscillating, reciprocating or some combination thereof as said tubular punch is being inserted to said selectable depth.

14. A method according to claim 9 further comprising treating an incision site with antibiotic ointment at least 2 days after incision.

15. A method according to claim 9 wherein said removing said follicle from said skin tissue further comprises aligning an angled cutting end of a tubular punch with said skin tissue.

16. A method according to claim 9 wherein said causing said cylindrical cutting end to further penetrate said skin tissue of said subject to a selectable depth comprises turning an adjustment screw component of said tubular punch.

17. A method of follicular extraction to reduce scarring comprising:

applying surgical lubricant to a cylindrical cutting end of a tubular punch;

contacting a surface of skin tissue at a first angle with respect to said surface of said skin tissue using said tubular punch;

making a first incision about a hair follicle into said surface of skin tissue using said tubular punch;

penetrating said skin tissue with said tubular punch to an initial penetration depth of between about 0.05 millimeters and about 0.3 millimeters;

angling said tubular punch to a second angle with respect to said surface of said skin tissue at least partially in response to said penetrating said skin tissue to said initial penetration depth, wherein said second angle is substantially equal to about an angle of hair growth; and

penetrating said skin tissue to a selectable depth of between about 2.0 millimeters and about 7.0 millimeters while substantially maintaining said tubular punch at said second angle with respect to said surface of said skin tissue and while maintaining said hair follicle within an interior space of said tubular punch;

removing said hair follicle from said skin tissue; and

treating an incision site with a topical steroid at least 2 days after incision.

18. A process according to claim 17 wherein said treating an incision site with an antibiotic ointment further comprises applying said antibiotic ointment or said topical steroid to said incision site at least around the time of said incision.

19. A process according to claim 17 wherein said causing said cylindrical cutting end to further penetrate said skin tissue of said subject to a selectable depth comprises turning an adjustment screw component of said tubular punch.

20. A method of follicular extraction to reduce scarring comprising:

treating an incision site with a surgical lubricant;

contacting a surface of skin tissue at a first angle with respect to said surface of said skin tissue using a tubular punch having a cylindrical cutting end;

making a first incision about a hair follicle into said surface of skin tissue using said tubular punch;

penetrating said skin tissue with the tubular punch to an initial penetration depth of between about 0.05 millimeters and about 0.3 millimeters;

angling said tubular punch to a second angle with respect to said surface of said skin tissue at least partially in response to said penetrating said skin tissue to said initial penetration depth, wherein said second angle is substantially equal to about an angle of hair growth; and

penetrating said skin tissue to a selectable depth of between about 2.0 millimeters and about 7.0 millimeters while substantially maintaining said tubular punch at said second angle with respect to said surface of said skin tissue and while maintaining said hair follicle within an interior space of said tubular punch; and

removing said hair follicle from said skin tissue; and

treating an incision site with an antibiotic ointment or a topical steroid.

21. The method according to claim 20 further comprising applying surgical lubricant to said cutting end of said tubular punch.

22. A process according to claim 20 wherein said treating an incision site with an antibiotic ointment further comprises applying said antibiotic ointment or said topical steroid to said incision site at least around the time of said incision.

23. A process according to claim 20 wherein said treating an incision site with an antibiotic ointment further comprises applying an antibiotic ointment to said incision site at least 2 days after incision.

24. A process according to claim 20 wherein said causing said cylindrical cutting end to further penetrate said skin tissue of said subject to a selectable depth comprises turning an adjustment screw component of said tubular punch.