METHODS FOR IMPLANTING FOLLICULAR UNITS USING AN AUTOMATED SYSTEM

• US 20070106307A1
• Filed: 04/28/2006
• Published: 05/10/2007
• Est. Priority Date: 09/30/2005
• Status: Abandoned Application

• Current Assignee: Restoration Robotics, Inc. (Venus Concept, Inc.)
• Original Assignee: Restoration Robotics, Inc. (Venus Concept, Inc.)
• Inventors: Bodduluri, Mohan, Gildenberg, Philip, Caddes, Donald
• Application Number:
  US11/380,911
• Publication Number:
  US 20070106307A1
• Time in Patent Office: Days
• 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 17/3468 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 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/371 with simultaneous use of two cameras
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 34/30 Surgical robots
• CPC Class Codes: A61B 5/1077 Measuring of profiles
• CPC Class Codes: A61B 5/448 Hair evaluation, e.g. for hair disorder diagnosis
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for

Abstract

A method for implanting follicular units in a body surface includes (i) acquiring and processing images of a body surface to identify an implantation site on the body surface, (ii) using an automated system including a moveable arm to position an implantation tool mounted on the moveable arm to a location adjacent the implantation site, (ii) implanting a follicular unit in the body surface by movement of the implantation tool relative to the body surface, wherein the images are acquired from one or more cameras mounted on the moveable arm.

Claims

1. A method for implanting follicular units in a body surface, comprising:

acquiring images of a body surface;

processing the acquired images to identify an implantation site on the body surface;

using an automated system including a moveable arm to position an implantation tool mounted on the moveable arm to a location adjacent the implantation site; and

implanting a follicular unit in the body surface by movement of the implantation tool relative to the body surface,

wherein the images are acquired from one or more cameras mounted on the moveable arm.

2. The method of claim 1, wherein the automated system is a robotic system, and the moveable arm is a robotic arm.

3. The method of claim 2, wherein the images are acquired from a single camera mounted to the robotic arm, and further comprising registering a reference coordinate system of the camera with a tool frame reference coordinate system of the robotic arm.

4. The method of claim 2, wherein the images are acquired from a pair of cameras mounted to the robotic arm, and further comprising registering respective reference coordinate systems of the cameras with each other and with a tool frame reference coordinate system of the robotic arm.

5. The method of claim 2, wherein the images are acquired using respective first and second pairs of cameras mounted to the robotic arm, the first pair focused to acquire image data of a first field of view, and the second pair focused to acquire image data of a second field of view substantially narrower than the first field of view.

6. The method of claim 5, further comprising registering respective reference coordinate systems of the first and second pairs of cameras with each other and with a tool frame reference coordinate system of the robotic arm.

7. The method of claim 6, wherein the camera reference coordinate systems are registered with the robotic arm tool frame reference coordinate system based on images of a fixed calibration target acquired as the robotic arm is moved along one or more axes of the robotic arm tool frame reference coordinate system.

8. The method of claim 2, wherein the implantation tool is positioned at the implantation site by visual servoing of the robotic arm.

9. The method of claim 1, wherein the follicular unit is carried in the implantation tool prior to implantation.

10. The method of claim 1, wherein the follicular unit is implanted at a desired position and orientation relative to the body surface.

11. The method of claim 1, wherein the follicular unit is implanted at a desired depth in the body surface.

12. The method of claim 1, further comprising directing an air stream at the implantation site prior to or contemporaneous with implanting the follicular unit.

13. The method of claim 1, further comprising inputting through a user interface of the automated system instructions regarding one or more of a location, position, orientation, and depth of a follicular unit to be implanted.

14. A method for implanting follicular units in a body surface, comprising:

acquiring images of a body surface;

processing the acquired images to identify an implantation site on the body surface;

using an automated system including a moveable arm to position an implantation tool mounted on the moveable arm to a location adjacent the implantation site; and

implanting a follicular unit in the body surface by movement of the implantation tool relative to the body surface,

wherein the images are acquired using at least one pair of cameras, and further comprising registering respective reference coordinate systems of the respective cameras with each other.

15. The method of claim 14, wherein the images are acquired using respective first and second pairs of cameras, the first pair focused to acquire images of a first field of view, and the second pair focused to acquire images of a second field of view substantially narrower than the first field of view.

16. The method of claim 15, further comprising registering respective reference coordinate systems of each of the first and second pairs of cameras with the other.

17. The method of claim 16, wherein the automated system is a robotic system, and the moveable arm is a robotic arm, and further comprising registering the respective camera reference coordinate systems with a tool frame reference coordinate system of the robotic arm.

18. The method of claim 17, wherein the implantation tool is positioned at the implantation site by visual servoing of the robotic arm.

19. The method of claim 14, wherein the follicular unit is carried in the implantation tool prior to implantation.

20. The method of claim 14, wherein the follicular unit is implanted at a desired position and orientation relative to the body surface.

21. The method of claim 14, wherein the follicular unit is implanted at a desired depth in the body surface.

22. The method of claim 14, further comprising directing an air stream at the implantation site prior to or contemporaneous with implanting the follicular unit.

23. The method of claim 14, further comprising inputting through a user interface of the automated system instructions regarding one or more of a location, position, orientation, and depth of a follicular unit to be implanted.

24. A method for transplanting follicular units, comprising:

acquiring and processing images of a first area of a body surface to identify and determine a relative position and orientation of a follicular unit to be harvested;

using an automated system including a moveable arm to position a harvesting tool mounted on a moveable arm adjacent the identified follicular unit, such that a longitudinal axis of the harvesting tool is aligned with a longitudinal axis of the follicular unit;

harvesting the follicular unit by movement of the harvesting tool relative to the body surface;

acquiring and processing the images of a second area of the body surface to identify an implantation site;

using the automated system to position an implantation tool mounted on the moveable arm adjacent the implantation site, and

implanting the follicular unit by movement of the implantation tool relative to the body surface,

wherein the respective images are acquired from one or more cameras mounted on the moveable arm.

25. The method of claim 24, wherein the automated system is a robotic system, and the moveable arm is a robotic arm.

26. The method of claim 25, wherein the respective images are acquired from a single camera mounted to the robotic arm, and further comprising registering a reference coordinate system of the camera with a tool frame reference coordinate system of the robotic arm.

27. The method of claim 25, wherein the respective images are acquired from a pair of cameras mounted to the robotic arm, and further comprising registering respective reference coordinate systems of the cameras with each other and with a tool frame reference coordinate system of the robotic arm.

28. The method of claim 25, wherein the respective images are acquired using respective first and second pairs of cameras mounted to the robotic arm, the first pair focused to acquire image data of a first field of view, and the second pair focused to acquire image data of a second field of view substantially narrower than the first field of view.

29. The method of claim 28, further comprising registering respective reference coordinate systems of the first and second pairs of cameras with each other and with a tool frame reference coordinate system of the robotic arm.

30. The method of claim 25, wherein the respective harvesting and implantation tools are positioned by visual servoing of the robotic arm.

31. The method of claim 24, further comprising identifying the approximate physical boundaries of the identified follicular unit, including identifying a subcutaneous base region embedded in the body surface and a distal tip region extending away from the body surface.

32. The method of claim 24, wherein the images include subcutaneous images.

33. The method of claim 24, wherein the follicular unit is implanted at a desired position and orientation relative to the body surface.

34. The method of claim 24, wherein the follicular unit is implanted at a desired depth in the body surface.

35. The method of claim 24, further comprising directing an air stream at the implantation site prior to or contemporaneous with implanting the follicular unit.

36. The method of claim 24, wherein the harvesting tool and implantation tool are part of an integrated assembly.

37. The method of claim 24, wherein the follicular unit is carried by the moveable arm the entire time between when harvested and when implanted.

38. The method of claim 24, further comprising inputting through a user interface of the automated system instructions regarding one or more of a location, position, orientation, and depth of a follicular unit to be implanted.