Systems and methods for hair transplantation systems with extraction and implantation needles

Abstract

Systems and methods for hair transplantation using a hair transplantation device are provided. The hair transplantation device includes an extraction unit including a coring needle configured to extract at least one hair follicle from a donor site; an implantation unit removably coupled to the extraction unit, the implantation unit including a splitting needle configured to create an opening in a recipient site; a housing coupled to the extraction unit; and a user interface extending from the housing and movable relative to the housing. The user interface includes a pin movable within the coring needle relative to the housing.

Description

[0001] Cross-references to related applications

[0002] This application is based on and claims the benefit of U.S. Provisional Patent Application Serial No. 62 / 979,504, filed February 21, 2020, entitled "Systems and Methods for a Hair Transplant System with Extraction and Implantation Needles," the full text of which is incorporated herein by reference. Background Technology

[0003] Hair loss is one of the most serious psychological problems, affecting 80 million people in the United States alone. Therefore, the commercial market for solving hair loss problems is a multi-billion dollar industry, ranging from drug treatments to hair transplants.

[0004] Hair transplantation is a procedure involving the implantation of multiple hair follicles, or follicular units, from a donor site into a recipient site in a patient. There are two types of hair transplantation procedures: Follicular Unit Transplantation (“FUT”) and Follicular Unit Extraction (“FUE”). In FUT, a strip of skin is cut from the donor site (e.g., typically the back of the head), and hair follicles are separated from the cut skin. For implantation, small holes are made at the recipient site, and the separated follicles are inserted one at a time. This procedure requires highly skilled surgeons and technicians and leaves long scars where the skin was cut. In FUE, each hair follicle is identified, and small holes are made around the follicle using a core-punching machine. The follicles are then removed from the donor site one at a time. For implantation, small holes are made at the recipient site, and each follicle is inserted into a hole. These holes then heal around the implanted follicles.

[0005] Currently, this procedure is typically performed using different tools for extracting hair follicles, creating small incisions, and implanting the follicles. Furthermore, the procedure is typically completed by implanting a single follicle at a time. A single hair transplant procedure can implant 1500 to 3000 follicles. With each follicle taking up to 20 seconds to transplant, each transplant procedure is extremely physically demanding and can last 8 to 12 hours. Therefore, current hair transplant procedures are cumbersome, time-consuming, and costly. Therefore, systems and methods that reduce the time required for hair transplant surgery (FUE) and improve the efficiency of hair transplantation would be beneficial. Summary of the Invention

[0006] The present disclosure overcomes the above and other shortcomings by providing systems and methods for efficient hair transplantation using a hair transplantation device that can extract a follicular unit from a donor site using an extraction unit, create an opening in a recipient site using an implantation unit, and implant the follicular unit into the opening in the recipient site. In some configurations, the systems and methods of the present disclosure allow the extraction and implantation units to be independently adjustable and separable from one another. The systems and methods of the present disclosure are capable of simultaneously extracting a plurality of follicular units from a donor site, creating a plurality of openings in a recipient site, and implanting a plurality of follicular units into the plurality of openings in the recipient site. Systems and methods are provided for improved hair transplantation procedures that increase extraction speed, opening speed, and implantation speed, thereby increasing efficiency and reducing cost.

[0007] According to an aspect of the present disclosure, a hair transplantation device is provided. The hair transplantation device includes an extraction unit including a coring needle configured to extract at least one follicular unit from a donor site; an implantation unit removably coupled to the extraction unit, the implantation unit including a splitting needle configured to create an opening in a recipient site; a housing coupled to the extraction unit; and a user interface extending from the housing and movable relative to the housing. When the extraction unit and the implantation unit are assembled together, the coring needle and the splitting needle are disposed along a common axis and the coring needle and the splitting needle are axially separated such that the user interface can be displaced to drive the follicular unit from within the coring needle into the opening of the recipient site to implant the follicular unit.

[0008] According to an aspect of the present disclosure, a hair transplantation device is provided. The hair transplantation device includes an extraction unit including a coring needle configured to extract at least one follicular unit from a donor site; an implantation unit removably coupled to the extraction unit, the implantation unit including a splitting needle configured to create an opening in a recipient site; a housing coupled to the extraction unit; and a user interface extending from the housing and movable relative to the housing. When the extraction unit and the implantation unit are assembled together, the coring needle and the splitting needle are disposed along a common axis and the coring needle and the splitting needle are axially separated such that the user interface can be displaced to drive the follicular unit from within the coring needle into the opening of the recipient site to implant the follicular unit.

[0009] According to an aspect of the present disclosure, a method of performing a hair transplantation procedure is provided. The method includes driving a coring needle to engage a donor site to dispose a follicular unit within a coring inner lumen of the coring needle; coupling a splitting needle to a cutting end of the coring needle; driving the splitting needle to engage a recipient site to create an opening in the recipient site; and engaging a user interface to displace a pin axially aligned with the coring needle and the splitting needle to displace the follicular unit from within the coring inner lumen into the opening of the recipient site to implant the follicular unit.

[0010] The foregoing and other advantages of the application will become apparent in the following detailed description, taken in conjunction with the accompanying drawings. In the description, reference is made to the drawings where like reference numerals indicate like structures. These embodiments are described in sufficient detail to enable those skilled in the art to practice the application, and it is understood that other embodiments can be utilized and that structural, logical and electrical changes can be made without departing from the scope of the present application. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present application is indicated in the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a perspective view of a hair transplant device including implant and extraction units according to an aspect of the present disclosure.

[0012] Figure 2 is a perspective view of the hair transplant device of Figure 1 with the implant unit removed from the extraction unit.

[0013] Figure 3 is a perspective view of the implant unit of Figure 1

[0014] Figure 4 is a cross-sectional view of the hair transplant device of Figure 1

[0015] Figure 5 is a perspective view of the cutting end of the extraction needle.

[0016] Figure 6 is a perspective view of the cutting end of the implant needle.

[0017] Figure 7 is a side profile view of a coupling unit for coupling an extraction needle and an implant needle according to an aspect of the present disclosure.

[0018] Figure 8 is a cross-sectional exploded view of the coupling unit of Figure 7

[0019] is a profile view of a coupling unit for coupling extraction needles and implant needles of different diameters. Figure 9

[0020] is a profile view of a coupling unit for coupling extraction needles and implant needles of different diameters. Figure 10

[0021] is a perspective view of the end of a pin according to an aspect of the present disclosure. Figure 11

[0022] is a schematic view of hair follicle extraction according to an aspect of the present disclosure. Figure 12

[0023] is a schematic view of coupling an implant needle to an extraction needle with a coupling unit shown as translucent. Figure 13 ​​​

[0024] Figure 14 is a schematic illustration of the first step of follicle implantation.

[0025] Figure 15 is a schematic illustration of the second step of follicle implantation.

[0026] Figure 16 is a schematic illustration of the third step of follicle implantation using a coupling unit shown as translucent.

[0027] Figure 17 is a perspective view of a hair transplantation device comprising a plurality of implant needles and an extraction needle according to an aspect of the present disclosure.

[0028] Figure 18 is an exemplary exploded view of the hair transplantation device of Figure 17

[0029] Figure 19 is a side profile view of an extraction unit comprising individually adjustable extraction needles.

[0030] Figure 20 is a perspective view of a hair transplantation device comprising a rotating cartridge arranged for storing a plurality of skin cores according to an aspect of the present disclosure.

[0031] Figure 21 is a perspective view of a hair transplantation device comprising a housing according to an aspect of the present disclosure.

[0032] Figure 22 is an exploded view of the hair transplantation device of Figure 21

[0033] Figure 23 is a detailed view of a user interaction portion locking feature of the hair transplantation device of Figure 21

[0034] is a detailed view of an axial stop feature of the hair transplantation device of Figure 24 Figure 21 is an illustration of the extraction of a follicle using the hair transplantation device of

[0035] Figure 25 Figure 21

[0036] Figure 25 is an illustration of the coupling of an implant unit to an extraction unit using the hair transplantation device of Figure 21

[0037] Figure 27 is an illustration of the coupling of a housing to the hair transplantation device of Figure 21

[0038] Figure 28 is an illustration of the coupling of an implant unit to an extraction unit using the hair transplantation device of Figure 21 ​​​​​​​illustration of the first step of follicular implantation with the hair transplant device of

[0039] Figure 29 is an illustration of the second step of follicular implantation with the hair transplant device of Figure 21

[0040] Figure 30 is an illustration of the third step of follicular implantation with the hair transplant device of Figure 21

[0041] Figure 31 is an illustration of the fourth step of follicular implantation with the hair transplant device of Figure 21

[0042] Figure 32 is an illustration of the fifth step of follicular implantation with the hair transplant device of Figure 21

[0043] Figure 33 is an exploded view of a hair transplant device including a housing with a cam sleeve according to an aspect of the disclosure.

[0044] Figure 34 is a side profile view of the hair transplant device of Figure 33

[0045] Figure 35 is a side profile view of the hair transplant device of Figure 33

[0046] Figure 36 is a detailed view of a user interaction portion lock feature of the hair transplant device of Figure 33

[0047] is an illustration of the first step of follicular implantation with the hair transplant device of Figure 37 Figure 33 is an illustration of the second step of follicular implantation with the hair transplant device of

[0048] Figure 38 Figure 33 is an illustration of the third step of follicular implantation with the hair transplant device of

[0049] Figure 39 is an illustration of the fourth step of follicular implantation with the hair transplant device of Figure 33

[0050] Figure 40 is an illustration of a hair transplant device including a linear array of coring needles.

[0051] Figure 41 is an illustration of a hair transplant device including a non-linear array of coring needles.

[0052] ​​​​​​​​​Figure 42 is a schematic illustration of an automated hair grafting system according to an aspect of the present disclosure. DETAILED DESCRIPTION

[0053] Various aspects of the subject disclosure will now be described with reference to the drawing, wherein like reference numerals are used to refer to like elements throughout. It will be understood, however, that the drawings and detailed description relating thereto are not intended to limit the claimed subject matter to the particular form disclosed. Rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the claimed subject matter.

[0054] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure can be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure. It is to be understood that the detailed description and specific examples, while indicating embodiments of the disclosure, are presented by way of illustration only and not by way of limitation. Various substitutions, modifications, additions, rearrangements or combinations, within the scope of the disclosure, can be apparent to those skilled in the art from this disclosure and can be made without departing from the scope thereof.

[0055] In accordance with common practice the various features illustrated in the drawings can not be drawn to scale. The illustrations presented herein are not meant to be actual views of any specific method, apparatus or system, but are merely idealized representations that are employed to describe various embodiments of the present disclosure. Accordingly, the dimensions of the various features can be arbitrarily exaggerated or reduced for clarity. Also, some of the drawings can be simplified for clarity. Thus, the drawings can not depict all of the components of a given apparatus (e.g., device) or method. Further, like reference numerals can be used to denote like features throughout the specification and figures.

[0056] It will be understood that any reference to an element herein using a designation such as "first," "second," and so forth does not limit the quantity or order of those elements, unless specifically stated. Rather, these designations can be used herein as a convenient method of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed there or that the first element must precede the second element in some manner. Also, unless otherwise specified, a set of elements can comprise one or more elements.

[0057] The word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Further, the terms axial, radial, and circumferential as used herein refer to directions with respect to a central axis 2 (see Figure 1 ) of the device.

[0058] As will be described herein, the present disclosure provides systems and methods for transplanting hair follicles from a donor site to a recipient site using a hair transplant device. The hair transplant device described herein includes an extraction unit configured to extract at least one hair follicle from a donor site and an implant unit removably coupled to the extraction unit, the implant unit including an opening configured to form into a recipient site. According to some embodiments, a housing is coupled to the extraction unit and a pin movable relative to the housing is configured to be slidably received within the extraction unit and the implant unit to assist in inserting the transplanted hair follicle into the recipient site. The hair transplant device further includes a coupling configured to connect together the coring needle of the extraction unit and the splitting needle of the implant unit in an end-to-end fashion when the extraction unit and the implant unit are assembled together.

[0059] Reference will now be made to the drawings wherein like numerals refer to like components throughout the several figures, and more specifically Figure 1 and 2 A hair transplant device 10 for extracting hair follicles from a donor site of a donor and implanting them into a recipient site of a patient is shown. These hair follicles or follicular units can contain a single hair or multiple hairs combined together. As can be seen from the illustration of Figure 1 The hair transplant device 10 includes a housing 12, an extraction unit 14 (see Figure 2 ), an implant unit 16 removably coupled to the extraction unit 14, and a user interaction 18. The housing 12 extends between a proximal end 20 (e.g., a first end adjacent to the extraction unit 14) and a distal end 22 opposite the proximal end 20. The housing 12 includes an opening 24 in the distal end 22 configured to slidably receive the user interaction 18.

[0060] As will be further described, the housing 12 and implant actuator 92 can be configured to connect with an automated system, such as, for example, a computer-aided manufacturing (CAM) system, for automated use of the hair transplant device 10. As will also be described, the housing 12 can additionally be configured to connect with several other similar hair transplant devices such that an array of hair transplant devices similar to the hair transplant device 10 is provided to allow for automated extraction and / or implantation of multiple hair follicles consecutively or simultaneously. In some cases, the housing 12 can additionally or alternatively be configured for manual operation (e.g., can include a handle).

[0061] As in Figure 2As best shown, the hair transplant device 10 is shown with the implant unit 16 removed from the extraction unit 14. The extraction unit 14 is coupled to the housing 12 near the proximal end 20. The extraction unit 14 includes an extraction / biopsy needle 26 coupled to and extending from a lower end 28 of the extraction unit 14. The extraction unit 14 can also include one or more guide rails 30 configured to mate with the implant unit 16 to prevent the implant unit 16 from rotating relative to the extraction unit 14 when coupled thereto. In the illustrated embodiment, the guide rails 30 are configured as protrusions 31 extending radially outward from the extraction unit 14. The protrusions 31 extend axially along the outer surface of the extraction unit 14. In the illustrated embodiment, the protrusions 31 are disposed on circumferentially opposite sides of the extraction unit (e.g., circumferentially separated by about 180 degrees). In other embodiments, the extraction unit can include multiple guide rails. In some embodiments, the guide rails can be circumferentially separated by more or less than 180 degrees (e.g., 45 degrees, 90 degrees, 120 degrees, 270 degrees, etc.).

[0062] Referring now to Figure 1 and 3 the hair transplant device 10 is shown with the implant unit 16 mounted on the extraction unit 14. The implant unit 16 is removably coupled to and at least partially encloses the extraction unit 14. The implant unit 16 similarly includes an implant / splitting needle 32 coupled to and extending from a lower end 34 of the implant unit 16. The implant unit 16 can also include a recess 36 configured to receive the extraction unit 14 therein. In the illustrated embodiment, the recess 36 extends axially into the implant unit 16 from a top end 38 thereof. The recess 36 includes one or more slots 40 configured to mate with the corresponding guide rails 30 on the extraction unit 14 when the implant unit 16 is coupled with the extraction unit 14. In the illustrated embodiment, the slots 40 extend radially outward from the inner surface of the recess 36. The slots 40 extend axially along the inner surface of the recess 36. In the illustrated embodiment, the number and spacing of the slots 40 on the implant unit 16 correspond to the number and spacing of the guide rails 30 on the extraction unit 14.

[0063] Referring now to Figure 4The extraction unit 14 defines a coring lumen 42 that extends axially through the extraction unit 14 and the coring needle 26 coupled thereto. The coring lumen 42 is centrally disposed within the extraction unit 14 and can extend through the extraction unit 14 from an upper surface 44 of the extraction unit 14 through a distal end of the coring needle 26. The extraction unit 14 can include a coring flange 46 that extends radially outward from the coring lumen 42 and terminates at an outer surface 48. The outer surface 48 of the coring flange 46 can slidably mate with an inner surface of the recess 36 within the implant unit 16. The extraction unit 14 is coupled to the housing 12. In the illustrated embodiment, the extraction unit 14 includes a threaded boss 43 that projects axially away from the coring flange 46. The threaded boss 43 includes external threads that are configured to mate with internal threads at the proximal end 20 of the housing 12.

[0064] The extraction unit 14 also includes an extraction stop 45 that is movable relative to the distal end of the coring needle 26. The extraction stop 45 is configured to regulate the coring depth such that the surface of the donor site is contacted at a predetermined coring depth during extraction of the follicle. For example, in the illustrated embodiment, the extraction stop 45 includes a first interface surface 47, and the positioning of the extraction stop 45 positions the first interface surface 47 a predetermined distance away from the distal end of the coring needle 26. In this manner, the coring depth can be defined by the distance between the distal end of the coring needle 26 and the first interface surface 47.

[0065] In the illustrated embodiment, the extraction stop 45 defines an annular shape and is configured to threadably mate with the extraction unit 14. Specifically, the extraction unit 14 includes a threaded annular recess 49 that is configured to receive the extraction stop 45. In the illustrated embodiment, with the extraction stop 45 adjusted to provide a maximum coring depth (e.g., the extraction stop is threaded into the extraction unit 14 such that the first interface surface 47 is above the lower surface 50), the lower surface 50 of the extraction unit 14 can provide the interface surface between the hair transplant device 10 and the donor site.

[0066] The coring needle 26 extends axially away from the lower surface 50 of the coring flange 46 and at least partially mates with the lumen in the implant unit 16 when the implant unit 16 is assembled onto the extraction unit 14. As in the illustrated embodiment, the coring needle 26 can include a first interface surface 52 that is configured to mate with the lower surface 50 of the extraction unit 14. In the illustrated embodiment, the first interface surface 52 is a flat surface that is configured to mate with the lower surface 50 of the extraction unit 14. In other embodiments, the first interface surface 52 can include other shapes, such as a convex or concave surface. Figure 5As best shown, the coring needle 26 can be formed as a hollow needle with a coring needle lumen 52 extending therethrough. Further, the coring needle 26 can include a first distal cutting end 54. The distal cutting end 54 is configured to cut into a donor site to form a core for extracting a follicular unit within the core. The first distal cutting end 54 can be disposed entirely outside of the housing 12 and include a pair of angled surfaces 56 angled toward one another that meet at a distal end of the coring needle 26. Thus, the pair of angled surfaces 56 form a pair of cutting edges 58 disposed on opposite sides of the coring needle lumen 52. The pair of cutting edges 58 are effectively aligned across the coring needle 26 such that they both extend radially from an inner surface of the coring needle 26 to an outer surface of the coring needle 26. In this way, the coring needle 26 can be configured to cut into tissue by driving the coring needle 26 into the tissue without requiring rotation of the coring needle 26.

[0067] Looking back Figure 4 , the implant unit 16 defines a split lumen 60 that is centrally disposed within the implant unit 16 and extends all the way through the implant unit 16 to the distal end of the split needle 32. In the illustrated embodiment, the coring lumen 42 and the split lumen 60 are axially aligned such that fluid communication can be provided from the distal end of the split needle 32 into the coring lumen 42. The implant unit 16 includes a split flange 62 that extends radially outward at an intermediate portion of the implant unit 16, thereby defining a base of the recess 36.

[0068] The implant unit 16 also includes an implant stop 55 that is movable relative to the distal end of the split needle 32. The implant stop 55 is configured to regulate the implant depth such that a surface of the recipient site is contacted at a predetermined implant depth during implantation of the follicular unit. For example, in the illustrated embodiment, the implant stop 55 includes a second interface surface 57, and positioning of the implant stop 55 positions the second interface surface 27 a predetermined distance away from the distal end of the split needle 32. In this way, the implant depth can be defined by the distance between the distal end of the split needle 32 and the second interface surface 57.

[0069] In the illustrated embodiment, the implant stop 55 defines an annular shape and is configured to threadably mate with the implant unit 16. Specifically, the implant unit 16 includes a threaded boss 59 extending axially away from the split flange 62 that is configured to receive the implant stop 55. In the illustrated embodiment, with the implant stop 55 adjusted to provide a maximum implant depth (e.g., the implant stop threaded onto the inner implant unit 16 such that the second interface surface 57 is above the lower surface 61 of the implant unit), the lower surface 61 of the implant unit 16 can provide the interface surface between the hair transplant device 10 and the recipient site.

[0070] In the illustrated embodiment, the implantation depth and the coring depth are independently adjustable. For example, adjusting the coring depth via the extraction stop 45 does not affect the implantation depth. Similarly, adjusting the implantation depth via the implantation stop 55 does not affect the coring depth. Independent adjustment of each of the implantation depth and the coring depth allows for a more versatile hair transplantation device 10.

[0071] The splitting needle 32 is axially separated from the coring needle 26 and extends axially away from the splitting flange 62. In the illustrated embodiment, the splitting needle 32 and the coring needle 26, as well as the coring lumen 42 and the splitting lumen 60, are axially aligned along a common central axis (e.g., axis 2). As best shown in Figure 6 The splitting needle 32 is a hollow needle with a splitting needle lumen 64 extending therethrough. Further, the splitting needle 32 includes a second distal cutting end 66 that is angled relative to the central axis of the splitting needle 32 (e.g., axis 2 of Figure 4 The distal cutting end 66 of the splitting needle 32 is configured to form an opening in the recipient site for implanting the extracted core. The second distal cutting end 66 has a particular cutting geometry (e.g., angle of the distal cutting edge) that can prevent tissue from entering the splitting needle 32 while the splitting needle 32 cuts into the skin by piercing the skin and gradually pushing the tissue out of the way, similar to the function of a hypodermic needle.

[0072] Referring back to Figure 4 In the illustrated embodiment, the coring needle 26 and the splitting needle 32 do not axially overlap. The hair transplantation device 10 further includes a coupling unit 70 disposed between the coring needle 26 and the splitting needle 32. According to the illustrated embodiment, the coupling unit 70 can be integrally formed into the implantation unit 16. According to other embodiments, the coupling unit 70 can be rigidly coupled to the splitting needle 32. According to other embodiments, the coupling unit 70 can be separate from each of the coring needle 26 and the splitting needle 32.

[0073] As best shown in Figure 7 and 8 The coupling unit 70 is configured to provide an end-to-end connection of the coring needle 26 and the splitting needle 32. For example, the coring needle 26 includes a distal cutting end 54 (e.g., a first cutting end) and a first coupling end 71 opposite the distal cutting end 54. The coupling unit 70 is configured to receive the distal cutting end 54 of the coring needle 26 at a first end 73 of the coupling unit 70. The first coupling end 71 is configured to be coupled to the extraction unit 14. The splitting needle 32 includes a distal cutting end 66 (e.g., a second cutting end) and a second coupling end 72 opposite the distal end cutting end 66. The coupling unit 70 is configured to receive the second coupling end 72 of the splitting needle 32 at an opposite second end 75 of the coupling unit 70.

[0074] The internal aspects of the connecting unit 70 may include a profile that matches the core-retrieving needle 26 and the splitting needle 32 at the location where the connecting unit 70 mates, allowing the core to transition smoothly through the connecting unit 70. Alternatively, the connecting unit may have a tapered interior if needles of different diameters are being passed through. For example, in the illustrated embodiment, the connecting unit 70 may be constructed as a cylindrical sleeve including a hollow core 76 extending from a first end 73 to a second end 75. When assembled, a continuous inner cavity may be defined by the core-retrieving needle 26, the connecting unit 70, and the splitting needle 32. The hollow core 76 may define a stepped profile including recesses entering from both ends to receive the core-retrieving needle 26 and the splitting needle 32. For example, according to the illustrated embodiment, to provide a smooth and seamless transition, the first end 73 of the connecting unit 70 may include a core-retrieving needle recess 77, which defines a shape complementary to the distal cutting end 54 of the core-retrieving needle 26, such that the inner diameter D1 of the core-retrieving needle 26 matches the inner diameter of the connecting unit 70. Similarly, the second end 75 of the connecting unit 70 may include a split needle recess 78, which defines a shape complementary to the second connecting end 72 of the split needle 32, such that the inner diameter D2 of the split needle 32 matches the inner diameter of the connecting unit 70. That is, the inner diameter between the core-retrieving needle recess 77 and the split needle recess 78 may define a diameter equal to the inner diameters of the core-retrieving needle 26 and the split needle 32.

[0075] In the illustrated embodiment, the inner diameter D1 of the core-taking needle 26 is the same as the inner diameter D2 of the splitting needle 32. That is, the core-taking needle 26 defines a first diameter, which is equal to the second diameter defined by the splitting needle 32. According to other embodiments, the diameters of the core-taking needle 26 and the splitting needle 32 may be different. For example, see... Figure 9 and 10 Alternative embodiments of the connecting units 70a and 70b are shown. Figure 9 In the illustrated embodiment, the core-taking needle 26a defines a first diameter D1, and the splitting needle 32a defines a second diameter D2, wherein the first diameter D1 is smaller than the diameter D2. Figure 10 In the illustrated embodiment, the core-retrieving needle 26b defines a first diameter D1, and the splitting needle 32b defines a second diameter D2, wherein the first diameter D1 is larger than the diameter D2. In such an embodiment, hair follicles can be extracted using the larger core-retrieving needle 26b and implanted using the smaller splitting needle 32b. This method can help increase the hair follicle density in each region at the recipient site. As shown, in any embodiment of the connecting units 70a, 70b, the hollow cores 76a, 76b are configured to provide a smooth and seamless transition from the core-retrieving needles 26a, 26b to the splitting needles 32a, 32b.

[0076] Return to reference Figure 4The user interaction section 18 is configured to extend from the housing 12 near the distal end 22 and is partially surrounded by the housing 12. The user interaction section 18 may include a pin 80, a head 82, and a spring 84. The pin 80 extends axially away from the head 82 and is partially disposed within the core extraction cavity 42 of the extraction unit 14. The pin 80 can be selectively actuated within the core extraction cavity 42 by axial movement of the user interaction section 18. The pin 80 shown includes a flat distal end surface 86. However, in some cases, the distal end surface 86 may alternatively be rounded, pointed, or any other suitable shape. The user interaction section 18 includes a user interaction section body 88 that extends axially away from the head 82 and extends through an opening 24 to the outside of the housing 12. A user interaction section flange 90 is coupled to the user interaction section body 88 (e.g., via threads thereon) and provides a surface on which a user can apply force or pressure to control the actuation of the system. In some cases, the user interaction section flange 90 may be configured to connect to an automated system, allowing the user interaction section 18 to move automatically. For example, in the illustrated embodiment, the user interaction unit 18 may be coupled to and actuated by the implant actuator 92 (e.g., a solenoid actuator) to axially push the pin 80 toward the scalp. The implant actuator 92 may have sufficient force to drive one or more elements or needles into the tissue. In other cases, the flange 90 may be additionally or alternatively configured for other types of automated or manual manipulation.

[0077] A spring 84 is disposed around a pin 80 between the distal surface of the head 82 and the upper surface 44 of the extraction element 14. The spring 84 is configured to compress as the user interaction section 18 advances axially toward the extraction unit, thereby providing resistance against the user interaction section 18.

[0078] The user interaction section 18 can selectively retract to a position (e.g., Figure 4 , 12 (as shown in Figure 13) and the insertion position (as shown in Figure 13) Figures 14-16 The user interface 18 moves between the two positions (shown). In the retracted position, the user interface 18 is arranged such that only a small portion of the pin 80 is disposed within the inner cavity 42 of the extraction unit 14. That is, in the retracted position, the pin 80 does not extend past the distal cutting end 54 of the extraction needle 26. In the insertion position, the user interface 18 moves axially by a predetermined amount such that the pin 80 is inserted through the inner cavity 42, past the distal cutting end 54 of the extraction needle 26, and through the connecting unit 70, such that the distal end surface 86 of the pin 80 is positioned close to the distal cutting end 66 of the splitting needle 32. That is, the user interface 18 is configured to move by a predetermined amount relative to the housing 12 to control the depth at which the extracted core / follicle is delivered into the opening at the recipient site.

[0079] In the illustrated embodiment, the user interaction portion 18 further includes a central lumen 94 that extends axially through the head portion 82 to the distal tip surface 86 of the pin 80. The central lumen 94 can be included to allow a gas or liquid to flow through the user interaction portion 18. The central lumen 94 is in axial alignment with each of the coring lumen 42 and the split lumen 64, and can provide fluid communication with each of the coring lumen 42 and the split lumen 64 (via the coupling unit 70). The user interaction portion body 88 can be coupled to a fluid delivery system and / or a fluid suction system to provide a gas or liquid through the user interaction portion 18 and / or to suction a gas or liquid through the user interaction portion 18. For example, the central lumen 94 can be in fluid communication with an implant agent source 96 that is configured to provide an implant agent to the central lumen 94 for use during implantation of the extracted follicle / hair follicle into a recipient site. For example, glycerol or polyethylene glycol can be used as an implant agent, which can act as a non-toxic lubricant. Additionally or alternatively, the central lumen 94 can be in fluid communication with a suction source 98 that is configured to provide suction at the tip of the pin 80 for use during extraction of the follicle / hair follicle. For example, after the coring needle 26 is inserted into a donor site, suction can be used to effect extraction of the follicle.

[0080] Referring to Figure 11 , the distal tip surface 86 of the pin 80 can include a mesh 100. The mesh 100 can be configured to prevent a follicle extracted from a donor site from being pulled into the central lumen 94 of the pin 80. For example, if suction is applied to the central lumen 94 (e.g., via the suction source 98, Figure 4 ), the mesh 100 can provide a surface that allows suction to pass through but not objects such as an extracted follicle. The mesh 100 can define a porous surface that includes a plurality of holes 102.

[0081] Having described the overall structure of the hair transplantation device 10 above, an exemplary method of use will now be described. It should be noted that the method of use described below is given by way of example and is not meant to be limiting in any way.

[0082] The hair transplantation device 10 can be used to perform a variety of different procedures to complete a hair transplantation procedure on a patient. For example, the device 10 is designed to perform an extraction procedure (as shown in Figure 12 ); a coupling procedure (as shown in Figure 13 ); an opening procedure (as shown in Figure 14 ); and an implantation procedure (as shown in Figures 14-16(As shown). Although any one of these three procedures can be performed individually by the hair transplant device 10, the hair transplant device 10 allows these processes to be performed sequentially and repeatedly. That is, the hair transplant device 10 can first be used to extract a core containing hair follicles from the donor site during the extraction procedure. Then, the hair transplant device 10 can be used to create an opening while still containing the core from the donor site, which is configured to receive the core in the recipient site of the patient. The hair transplant device 10 can then be used to implant the core from the donor site into the recipient site. Finally, once the hair follicle is implanted into the recipient site, this process can be repeated again and again using the hair transplant device 10 to complete the hair transplant operation. This process can be repeated, for example, dozens, hundreds, or even thousands of times.

[0083] In the following figures, many aspects of the hair transplant device 10 have been concealed to make the process clear, and it should be understood that the hair transplant device 10 described above (and all subsequent embodiments) can utilize the foregoing procedure. Figure 12 A hair transplant device 10 used in an extraction procedure is shown. According to some procedures, hair can be cut or slid to the desired height (e.g., approximately 1-2 mm) before the hair transplant process begins. As shown, the hair transplant device 10 can initially be placed in an extraction configuration above the donor site 110, where the implantation unit 16 is removed from the device (e.g., ...). Figure 2 And pin 80 is in the retracted position. Therefore, the core needle 26 is exposed to the outside of the extraction unit 14.

[0084] With pin 80 in the retracted position, the core retrieval needle 26 can be inserted into the donor site 110 around the core 112, wherein the distal cutting end 54 of the core retrieval needle 26 cuts through the surrounding donor tissue 114, such as... Figure 12 As shown. During the extraction procedure, in the central cavity 94 of pin 80 (see...) Figure 4 When connected to the suction source 98, when the core needle 26 is removed, suction or negative pressure can be provided to the core needle cavity 52 through the central cavity 94 of the pin to provide additional control and force for removing the core 112 from the donor site 110. In some cases, the suction source 98 is activated after the hair transplant device 10 is inserted. In other cases, the suction source 98 is activated before the hair transplant device 10 is inserted. In any case, the mesh portion 100 at the distal end of the pin 80 (e.g. Figure 11 (As shown) This prevents the core 112 from being pulled into the central cavity 94 of the pin 80. Aspiration can also retain the core 112 within the core retrieval needle 26 after the needle 26 has been removed from the donor site 110 and during transfer to the recipient site (see...). Figure 13). In other words, the mesh 100 on the distal end of the pin 80 is configured to prevent the skin core 112, which can contain a hair follicle, from being pulled past a predetermined location within the core needle 26.

[0085] The core needle lumen 52 can define an inner diameter that is greater than the average distance between hair follicles within the donor site 110 (i.e., approximately 1 mm) such that, when inserted into the donor site, the core needle 26 extracts at least one (or more) hair follicle contained within the skin core 112. Thus, during the extraction procedure, the hair transplant device 10 should always extract a skin core 112 that contains at least one hair follicle with at least one hair (not shown) along with other skin components (e.g., epidermis, collagen, elastin, blood vessels, etc.).

[0086] In the procedure shown, the core needle 26 is inserted substantially perpendicular to the donor site 110. According to some procedures, the core needle 26 can be inserted at different angles to extract a skin core 112 with hair follicles having a desired orientation. This variation in insertion angle can be controlled using the automated system described above. As Figure 13 shown, after insertion, the core needle 26 can then be removed from the donor site 110, still containing the skin core 112 within the core needle 26, leaving a small opening in the donor site 110.

[0087] Next, as Figure 13 shown, the implant unit 16 can be coupled to the extraction unit 14. Specifically, the split needle 32 can be coupled to the core needle 26 via the coupling unit 70. According to some procedures, the implant unit 16 can be pre-inserted at the recipient site. For example, the implant unit 16 can be coupled together with the extraction unit 14 to implant the hair directly into the recipient site, or the implant unit 16 can be pre-positioned at the recipient site, and then the extraction unit 14 can be coupled to the pre-positioned implant unit 16, which can allow for faster transplantation of the hair follicles.

[0088] Figure 14A portion of a hair transplant device 10 is shown in use during an opening procedure. As shown, an implant unit 16 is either mounted on the hair transplant device 10 or separately mounted if pre-positioned. If mounted to the extraction unit 14, the hair transplant device 10 can first be placed over a recipient site 120 of a recipient in an open configuration. In the open configuration, the pin 80 is held in a retracted position. As a result, the distal cutting end 66 of the split needle 32 is exposed. With the hair transplant device 10 in the open configuration, or if the implant unit is separately pre-positioned, the split needle 32 can be inserted into the recipient site 120 with the distal cutting edge forming an opening in the tissue 122, thereby creating a small opening 124 in the recipient site 120. Notably, while shown as forming the small opening 124 at an angle perpendicular to the surface of the recipient site 120, the small opening 124 can be formed at a non-perpendicular angle. Such a non-perpendicular angle can be facilitated by angling the surface of the split needle 32 and / or orienting the split needle 32 to engage the recipient site 120 at a non-orthogonal angle. According to some procedures, the suction source 98 (see Figure 4 ) can be deactivated or turned off prior to insertion of the split needle 32. According to other procedures, the suction source 98 can be deactivated after insertion of the split needle 32 but prior to implanting the pith 112.

[0089] Figures 14-16 A hair transplant device 10 is shown in use during an implant procedure. As shown, the distal cutting end 66 of the split needle 32 is inserted into the small opening 124 created during the opening procedure, and the pith 112 is disposed within the coring needle 26. The hair transplant device 10 can be moved into an implant configuration. In the implant configuration, the split needle 32 can be held in the small opening 124, and the pin 80 can be moved into an insertion position (e.g., via user interface 18, see Figure 14 When the user interface 18 is moved into the insertion position, the pin 80 comes into contact with the pith 112, thereby pushing the pith 112 out of the coring needle 26, through the hollow coupling unit 70, through the split needle 32, and into the small opening 124. As a result, the depth of implantation of the pith 112 into the small opening 124 can be controlled by a predetermined amount of axial movement of the pin 80. Figure 4

[0090] During the implant procedure, the central internal lumen 94 (see Figure 4 ​) with implant agent source 96, when inserting split needle 32 and / or when implanting follicular core 112 into recipient site 120, implant agent in liquid or gaseous form can be provided through the central lumen 94 of pin 80 into split needle lumen 64 to provide a lubricant to allow easier / more efficient implantation procedures, thereby assisting with procedures, treatments, and biology associated with follicle implantation. These implant agents can be any lubricant, irrigation fluid, cleaning fluid, anesthetic fluid, medicinal fluid, or any other fluid desired to be applied through pin 80. In particular, implant agents can include glycerol or polyethylene glycol. Additionally or alternatively, during implantation procedures, positive pressure can be provided through pin 80 into coring needle 26 to provide additional control and force for pushing follicular core 112 out of hair transplantation device 10.

[0091] After pushing follicular core 112 out of coring needle 26 and into small opening 124, the assembly of split needle 32, coupling unit 70, and coring needle 26 can be removed from small opening 124 (e.g., via movement of extraction unit 14 and implant unit 16 relative to user interface 18), thereby leaving follicular core 112 with implanted follicles behind in small opening 124. Figure 15 ) According to the procedure shown, pin 80 is configured to remain in contact with follicular core 112 when split needle 32 is withdrawn from recipient site 120. In particular, when split needle 32 is coupled to coring needle 26 via coupling unit 70, pin 80 can be long enough to protrude through coring needle 26 and distally beyond split needle 32. Thus, pin 80 can provide pressure to follicular core 112 to hold follicular core 112 within opening 124 while coring needle 26 and split needle 32 are withdrawn. In some cases, pressure from user interface 18 can be maintained for an extended period of time (e.g., one to two minutes) to assist in reducing bleeding from recipient site 120. Next, hair transplantation device 10 can be removed from recipient site 120 Figure 16 ).

[0092] Once implanted, the follicle will grow in the direction of the follicle axis. Thus, extracting follicular core 112 with the coring lumen 42 of extraction unit 14 aligned with the follicle axis can allow for implanting follicular core 112 such that the hair can grow at a known angle relative to the skin surface of recipient site 120. Thus, follicular core 112 can be implanted at different angles to create a hairline in recipient site 120 that looks natural. In some cases, follicular core 112 can be extracted and / or implanted at angles of up to 60 degrees relative to donor site 110 and / or recipient site 120.

[0093] These non-orthogonal orientations can be facilitated by the arrangement of the cutting surfaces and / or the arrangement of the devices relative to the object. In a fully automated implementation, angle control or selection can be controlled by the aforementioned automated system. In a manual implementation, angle selection can be controlled by selecting a device from different user-orthogonal devices with different geometries and / or configurations during processing.

[0094] Now refer to Figure 17 and 18 A hair transplant device 1010 is shown, which includes multiple implantation / extraction needles for simultaneously extracting / implanting multiple hair follicles. It should be understood that similar elements will be labeled using similar reference numerals, except that these numbers will be listed in the form of 1000 (e.g., hair transplant device 10 and hair transplant device 1010). Unless otherwise shown or described, it should be understood that elements sharing similar reference numerals are substantially similar to those previously described herein, including their function. In the illustrated embodiment, hair transplant device 1010 may be substantially similar to... Figures 1-16 The hair transplant device 10, in addition to the hair transplant device 1010, includes multiple core-retrieving needles 1026 and multiple splitting needles 1032.

[0095] Specific reference Figure 18 An exploded view is shown. It should be understood that simplifications have been made for clarity. Figure 18 Some aspects (e.g., parts of the user interaction unit 1018, such as the user interaction unit flange 1090, the extraction stop, and the implantation stop, etc., are not shown). The hair transplant device 1010 includes an extraction unit 1014 coupled to the housing 1012 and including a plurality of core-retrieving needles 1026, each of which is configured to extract one or more hair follicles from a donor site. The hair transplant device 1010 also includes an implantation unit 1016 removably coupled to the extraction unit 1014 and including a plurality of splitting needles 1032 configured to create corresponding plurality of openings in a recipient site. In the illustrated embodiment, a plurality of coupling units 1070 are used to couple the plurality of splitting needles 1032 to the plurality of core-retrieving needles 1026. The user interaction unit 1018 may include a plurality of pins 1080 corresponding to the number of core-retrieving needles 1026. The plurality of pins 1080 are movable relative to the housing 1012. Each of the plurality of pins 1080 is configured to be received within one of the plurality of core-retrieving needles 1026. According to the illustrated embodiment, the plurality of pins 1080 can move simultaneously via the user interaction unit 1018. According to other embodiments, the pins 1080 can move individually.

[0096] In the illustrated embodiment, the plurality of coring needles 1026 and splitting needles 1032 are arranged in a pattern or cluster non-linearly. Specifically, the plurality of coring needles 1026 and splitting needles 1032 are arranged in a triangular pattern (including three splitting / coring needles arranged at the points of a triangle). According to other embodiments, the plurality of coring needles 1026 and splitting needles 1032 can be arranged linearly (e.g., the plurality of needles arranged in a straight line).

[0097] Referring now to Figure 19 , a hair transplantation device 2010 is shown that includes a plurality of implantation / extraction needles for simultaneously extracting / implanting a plurality of hair follicles. It should be understood that like elements will be labeled using like reference numerals, except that these numbers will be listed in the form of 2000 (e.g., hair transplantation device 10 and hair transplantation device 2010). Unless otherwise shown or described, it should be understood that elements sharing like reference numerals are substantially similar to elements previously described herein, including their functionality. In the illustrated embodiment, the hair transplantation device 2010 can be substantially similar to the hair transplantation device 1010 of Figure 17 and 18 , except that the hair transplantation device 2010 includes individually adjustable coring needles 2026. It should be understood that although the extraction unit 2014 is primarily shown, the extraction unit 2014 can be replaced with the extraction unit 1014 of Figure 17 and Figure 18 .

[0098] According to the illustrated embodiment, the extraction unit 2014 can include a plurality of coring needles 2026, and the axial position of each coring needle 2026 can be changed to form a desired profile. For example, the axial position of the coring needles 2026 relative to one another can be adjusted according to the donor site 110 during the extraction procedure. This can be useful at curved surfaces of the donor site 110 (e.g., on the scalp), such that each of the plurality of coring needles 2026 extends into the donor site 110 at the same depth.

[0099] According to some embodiments, the axial position of each coring needle 2026 can be manually adjusted. According to the illustrated embodiment, a drive actuator 2130 (e.g., solenoid, linear actuator, etc.) can be coupled to each coring needle 2026 to control its axial position. Such variation in the axial positioning of the coring needles 2026 via the drive actuator 2130 can be controlled using the automated system described above. The extraction unit 2014 can include a locking unit 2132 configured to lock the axial position of the split needles 2023 in a desired profile. According to some embodiments, the locking unit 2132 can include a spring-loaded pin configured to engage a plurality of detents at different axial positions. According to other embodiments, the locking unit 2132 can include a threaded set screw to lock the axial position of the split needles 2023. According to the illustrated embodiment, the locking unit 2132 can be a lock or compression ring that applies a radial compression force to the body coupled to the split needles 2023 to lock the axial position of the split needles 2023. After the extraction procedure is complete, the coring needles 2026 can be set to a position where each coring needle 2026 is at the same axial position, and then an implant unit (e.g., an implant unit 1016 such as Figure 17 may be coupled to the extraction unit 2014 for an implant procedure.

[0100] Referring now to Figure 20 , a hair transplantation device 3010 is shown that includes a core-in-sheath storage cartridge 3140. It should be appreciated that like elements will be labeled using like reference numerals, except that these numbers will be listed in the form of 3000 (e.g., hair transplantation device 10 and hair transplantation device 3010). Unless otherwise shown or described, it should be appreciated that elements sharing like reference numerals are substantially similar to elements previously described herein, including their functionality. In the illustrated embodiment, the hair transplantation device 3010 can be substantially similar to the hair transplantation device 10 of Figure 1 and -16, except that the hair transplantation device 3010 includes a cartridge 3140 coupled to the housing 3012. It should be appreciated that although not explicitly shown, an implant unit such as the implant unit 16 of Figure 1 may be coupled to the extraction unit 3014 of Figure 20 .

[0101] The cartridge 3140 can be configured to store a plurality of extracted follicles such that multiple follicle extractions can be performed prior to a subsequent implantation procedure. That is, as opposed to extracting / implanting a single follicle at a time, multiple follicles can be extracted back-to-back prior to any implantation. The cartridge 3140 can be rotatably coupled to the housing 3012 between the proximal end 3020 and the distal end 3022. The cartridge 3140 can be resolvable about an axis that is parallel to the axis defined by the coring needle 3026 (e.g., central axis 2). The axis of rotation is radially offset from the central axis 2. The cartridge 3140 can include a plurality of openings 3142. In the illustrated embodiment, the openings 3142 are configured as follicle storage chambers that extend axially through the cartridge 3140. Rotation of the cartridge 3140 can selectively align one of the plurality of openings 3142 into alignment with the coring lumen (not shown, see, e.g., coring lumen 42 of Figure 4 .

[0102] During a hair transplant procedure, the extraction unit 3014 can be used to extract follicles from a donor site, as described above with reference to Figure 12 . After the extraction unit 3014 has cut a follicle 112 from the donor site 110, suction can be applied through the central lumen 94 of the pin 80 (see Figure 4 ) to cause the follicle-containing follicle 112 to move upward through the coring needle 3026 and coring lumen and into one of the plurality of storage chambers 3142 that is in axial alignment with the coring needle 3026, thereby loading the storage chamber 3142. Once the storage chamber 3142 has been loaded with a follicle, the cartridge 3140 can be rotated to align the coring lumen with the next, unloaded storage chamber 3142. This process can be repeated until a desired number of (or each) storage chamber 3142 of the cartridge 3140 has been loaded.

[0103] Once a desired number of (or each) storage chamber 3142 has been loaded, an implantation unit (not shown, see, e.g., implantation unit 16 of Figure 4 ) can be coupled to the extraction unit 3014, which can then create an opening in the recipient site 120 as described above with reference to Figure 14 . The pin 80 (and / or positive pressure placed in the central lumen 94) can then cause the follicle to move from the loaded storage chamber 3142, through the central lumen, to the splitting needle 32 of the implantation unit 16, and into the small opening, thereby implanting the follicle into the recipient site 120 as described above with reference to Figures 14-16 . This process can be repeated several times until each follicle within the loaded cartridge 3140 has been implanted into the recipient site 120.

[0104] According to some embodiments, the selective rotation of the cartridge 3140 can be accomplished manually. According to the illustrated embodiment, the cartridge 3140 is selectively rotated by a cartridge actuator 3144 (e.g., a gear drive, motor, etc.) coupled to the cartridge 3140. According to the illustrated embodiment, the hair transplantation device 3010 can include a cartridge detection sensor 3146 configured to detect a loaded / unloaded state of the storage chamber 3142. The cartridge detection sensor 3146 can be an optical sensor and IR sensor, or any other sensor configured for detecting a loaded chamber. The rotation of the cartridge 3140 via the cartridge actuator 3144 and the loaded / unloaded condition sensing of the cartridge detection sensor 3146 can be controlled using the automated system described above.

[0105] Referring now to Figures 21-22 , a hair transplantation device 4010 is shown received within a housing 4150. It should be appreciated that like elements will be labeled using like reference numerals, except that these numbers will be listed in the form of 4000 (e.g., hair transplantation device 10 and hair transplantation device 4010). Unless otherwise shown or described, it should be appreciated that elements sharing like reference numerals are substantially similar to elements previously described herein, including their functionality. In the illustrated embodiment, the hair transplantation device 4010 can be substantially similar to the hair transplantation device 1010 of Figure 17 and 18 , except that the hair transplantation device 4010 is inserted into the housing 4150, which can add functionality to the hair transplantation device 4010 and, in some cases, improve the automation or ease of the extraction / implantation process, as described below.

[0106] The housing 4150 is removably coupled to the hair transplantation device 4010. As the hair transplantation device 4010 is inserted into the housing 4150, the housing 4150 can be configured to receive a portion of the user interaction portion 4018 to lock an axial position of the pin 4080 (see Figure 22 ). The housing 4150 can be configured to be held by an articulated arm or robotic arm, and thus can be controlled by the automated system previously described. In the illustrated embodiment, the housing 4150 defines a substantially cylindrical shape having a hollow shaft 4152 (e.g., a cavity) extending from a top side toward a bottom side to receive the hair transplantation device 4010.

[0107] The bottom side of the housing 4150 defines an opening 4154 to receive at least a portion of the implant unit 4016 (e.g., the split needle 4032) therethrough. The housing 4150 can also include one or more slots 4155 extending axially along the housing 4150 that are configured to provide access to the interior hollow shaft 4152 so that a user or automated system can interact with the hair transplant device. For example, the implant unit 4016 can include a protrusion 4156 that extends radially outward from the implant unit through the slot 4155 in the housing 4150. In this way, a user can more easily interact with the implant unit 4016 when the hair transplant device 4010 is assembled into the housing 4150.

[0108] The housing 4150 can also define a foot pedal or flange 4158 at the bottom end of the housing 4150. The upper surface 4160 of the foot pedal 4158 can define an axial stop for the hair transplant device 4010, for example, by providing a stop for the protrusion 4156 extending outward from the implant unit 4016. As will be described, the bottom surface 4162 of the housing 4150 can define an interaction surface configured to contact the surface of a recipient site. In the illustrated embodiment, the bottom surface 4162 is axially separated from the upper surface 4160. The housing 4150 can also include housing protrusions 4164 that are configured as user interaction portions or to couple with an automated system such as an articulated arm. As will be described below, the housing 4150 can include a locking feature to lock the axial position of the pin 4080 relative to the housing 4012 (and the housing 4150) through selective engagement with the user interaction portion 4018.

[0109] Referring now to Figure 22 , an exploded view of the hair transplant device 4010 is shown. The housing 4150 can include a locking feature at the upper end of the housing 4150 that is configured as one or more radial slots 4166. In the illustrated embodiment, the radial slots 4166 extend circumferentially outward from the inner surface of the hollow shaft 4152

[0110] As Figure 23As shown, the user interaction portion 4018 can be advanced axially relative to the housing 4150 to a predetermined axial position when the hair implant device 4010 is inserted into the housing 4150. The user interaction portion 4018 can include a radial tab 4168 extending radially outward therefrom. The radial tab 4168 can be received within a slot 4155 and the user interaction portion 4018 can be positioned such that the radial tab 4168 is aligned with a radial slot 4166 on the housing 4150. With the radial tab 4168 of the user interaction portion 4018 aligned with the radial slot 4166 of the housing 4150, the user interaction portion 4018 can then be rotated a predetermined amount (e.g., with the user interaction portion flange 4090) to bring the radial tab 4168 into cooperation with the radial slot 4166, thereby locking the axial position of the user interaction portion 4018 and the pin 4080 (see Figure 22 ) coupled thereto. In the illustrated embodiment, the cooperation between the radial tab 4168 in the user interaction portion flange 4090 and the radial slot 4166 of the housing 4150 can be provided by a rotation of the user interaction portion flange 4090 of approximately 30 to 120 degrees. In the illustrated embodiment, the user interaction portion flange includes two radial tabs 4168 that are circumferentially separated by approximately 180 degrees. Correspondingly, the housing 4150 includes two circumferentially opposite radial slots 4166 to receive the radial tabs 4168.

[0111] Referring back to Figure 22 , the housing 4012 can include a locking feature adjacent the distal end 4022 of the housing 4012 that is configured to provide an axial stop for the user interaction portion 4018. In the illustrated embodiment, the locking feature is configured as a locking ring 4170. The locking ring 4170 can be rotatably coupled to the housing 4012. Alternatively, the locking ring 4170 can be integrally formed with the housing 4012. The locking ring 4170 defines a locking ring opening 4172 that defines a profile configured to selectively provide an axial stop for the user interaction portion 4018 (and the pin 4080 coupled thereto) upon selective rotation of the locking ring 4170. For example, the user interaction portion body 4088 can include radial stop portions 4174 that are configured to cooperate with an upper surface of the locking ring 4170 depending on the rotational position of one of the user interaction portion 4018 or the locking ring 4170.

[0112] As Figure 24As best shown, the user interaction portion 4018 can be advanced axially relative to the housing 4150 to a predetermined axial position. The radial stop 4174 can cooperate with an upper surface of the locking ring 4170, thereby providing an axial stop for the user interaction portion 4018. The user interaction portion 4018 can then be rotated (or vice versa) relative to the locking ring 4170 a predetermined amount to bring the radial stop 4174 into radial alignment with a portion of the profile of the opening 4172 that is configured to allow the radial stop 4174 to pass therethrough, and then the user interaction portion 4018 and the pin 4080 coupled thereto (see Figure 22 ) can continue to be advanced past the axial stop. Thus, the locking ring 4170 coupled to the housing 4012 can selectively provide an axial stop depending on the rotational position of the locking ring 4170 relative to the user interaction portion 4018. In the illustrated embodiment, the cooperation between the radial stop 4174 in the user interaction portion body 4088 and the opening 4172 in the locking ring 4170 can be provided by a rotation of the user interaction portion 4018 relative to the locking ring 4170 of approximately 30 to 120 degrees. In the illustrated embodiment, the user interaction portion body 408 includes two radial stops 4174 that are circumferentially separated by approximately 180 degrees. Thus, the opening 4172 in the locking ring 4170 defines a profile to receive the radial stop 4174 in a first rotational position, but to provide a stop in a second rotational position.

[0113] Referring now to Figures 25-32 , the hair transplant device 4010 can be used to perform a hair transplant procedure similar to that of Figures 12-16 . For example, the device 4010 is designed to perform an extraction procedure (as shown in Figure 25 ); a coupling procedure (as shown in Figure 26 ); an opening procedure (as shown in Figure 28 ); and an implant procedure (as shown in Figures 29-30 ). Thus, only aspects that differ from those already explained above with reference to Figures 12-16 will be described below.

[0114] Figure 25A hair transplant device 4010 is shown in use during an extraction procedure. As previously described, a coring needle 4026, in this case a plurality of coring needles 4026, can be inserted into the donor site 110, forming a plurality of skin plugs 112 with the distal cutting ends of the coring needles 4026 cutting through the surrounding donor tissue 114. In the illustrated embodiment, the user interaction portion 4018 is positioned such that the radial stop 4174 is in contact with the upper surface of the locking ring 4170, thereby maintaining the pin coupled to the user interaction portion 4018 in a predetermined axial position (e.g., retracted). After insertion of the extraction unit 4014, the coring needles 4026 can then be removed from the donor site 110, still containing the skin plugs 112 within the coring needles 4026, leaving a plurality of small openings in the donor site 110. Next, as shown, Figure 26 the implant unit 4016 can be coupled to the extraction unit 4014 (e.g., via the coupling unit 70, see Figure 7 ). Next, as shown, Figure 27 the hair transplant device 4010 can be inserted into the hollow shaft 4152 of the housing 4150.

[0115] Figure 28 A hair transplant device 4010 is shown in use during an extraction procedure. As previously described, a coring needle 4026, in this case a plurality of coring needles 4026, can be inserted into the donor site 110, forming a plurality of skin plugs 112 with the distal cutting ends of the coring needles 4026 cutting through the surrounding donor tissue 114. In the illustrated embodiment, the user interaction portion 4018 is positioned such that the radial stop 4174 is in contact with the upper surface of the locking ring 4170, thereby maintaining the pin coupled to the user interaction portion 4018 in a predetermined axial position (e.g., retracted). After insertion of the extraction unit 4014, the coring needles 4026 can then be removed from the donor site 110, still containing the skin plugs 112 within the coring needles 4026, leaving a plurality of small openings in the donor site 110. Next, as shown,

[0116] Figures 29-32 A hair transplant device 4010 is shown in use during an extraction procedure. As previously described, a coring needle 4026, in this case a plurality of coring needles 4026, can be inserted into the donor site 110, forming a plurality of skin plugs 112 with the distal cutting ends of the coring needles 4026 cutting through the surrounding donor tissue 114. In the illustrated embodiment, the user interaction portion 4018 is positioned such that the radial stop 4174 is in contact with the upper surface of the locking ring 4170, thereby maintaining the pin coupled to the user interaction portion 4018 in a predetermined axial position (e.g., retracted). After insertion of the extraction unit 4014, the coring needles 4026 can then be removed from the donor site 110, still containing the skin plugs 112 within the coring needles 4026, leaving a plurality of small openings in the donor site 110. Next, as shown, Figure 28 the implant unit 4016 can be coupled to the extraction unit 4014 (e.g., via the coupling unit 70, see Figure 29The pin can then be moved to an insertion position (e.g., via user interaction portion 4018). When the user interaction portion 4018 is moved to the insertion position, the pin drives the skin core 112 out of the core needle 4026 and into the small opening 124. In the illustrated embodiment, the user interaction portion can be advanced until either one of the protrusions 4156 on the implant unit 4016 contacts the upper surface of the foot pedal 4158 or the user interaction portion flange 4090 contacts the upper surface of the housing 4150.

[0117] After the skin core 112 has been pushed out of the core needle 4026 and into the small opening 124, the pin can be axially retained in the insertion position by rotating the user interaction portion 4018 relative to the housing 4150 to lock the user interaction portion flange 4090 as shown. Figure 30 The radial tabs 4168 of the user interaction portion flange 4090 can then be engaged with the radial slots 4166 of the housing 4150 to achieve axial retention of the pin in the insertion position.

[0118] The split needle 4032 of the implant unit 4016 can then be removed from the small opening 124 by movement of the implant unit 4016 relative to the user interaction portion 4018, with the user interaction portion being axially locked by the housing 4150, thereby leaving the skin core 112 with the hair follicles implanted therein. Figure 31 According to the illustrated procedure, the pin can then remain in contact with the skin core 112 as the split needle 4032 is withdrawn from the recipient site 120. Next, the hair transplant device 4010 can be removed from the recipient site 120. Figure 32

[0119] Reference is now made to Figures 33-36 , which shows a hair transplant device 5010 received within a housing 5150, which has a cam sleeve 5180. It should be understood that similar elements will be labeled using similar reference numerals, except that these numbers will be listed in the form of 5000 (e.g., hair transplant device 10 and hair transplant device 5010). Unless otherwise shown or described, it should be understood that elements sharing similar reference numerals are substantially similar to elements previously described herein, including their functionality. In the illustrated embodiment, the hair transplant device 5010 can be substantially similar to the hair transplant device 4010 of Figure 22 , except that the housing 5150 can include a cam sleeve 5180, which can add functionality to the hair transplant device 5010 and, in certain instances, improve the automation or ease of the extraction / implantation procedure, as described below.

[0120] Reference is now made to Figure 33 ​The hair transplant device 5010 may include a housing 5150, which includes a hollow shaft configured to receive the hair transplant device 5010. In the illustrated embodiment, the implantation unit 5016 may be pre-installed or assembled with the housing 5150. The housing 5150 may include a slot 5155 extending axially from an inner surface to an outer surface along a portion of the housing 5150. In the illustrated embodiment, the housing 5150 may include a cam sleeve 5180 disposed around the outer surface of the housing 5150 adjacent to the slot 5155 in the housing 5150. The cam sleeve 5180 may be configured to extend selectively relative to the housing 5150. Figure 34 ) or retract ( Figure 35 The implanted unit 5016 is described below. The cam sleeve 5180 may also include cam protrusions 5186, which are configured as a user interaction unit or configured to be connected to an automation system.

[0121] The cam sleeve 5180 may define a shaped slot 5182 configured to engage a protrusion 5156 extending radially outward from the implantation unit 5016 through a slot 5155 in the housing 5150. In the illustrated embodiment, a cam stop 5184 may prevent axial movement of the cam sleeve 5180 relative to the housing 5150. Figure 34 As best shown, the implantation unit 5016 is arranged in the extraction position, wherein the protrusion 5156 is disposed at the upper end of the irregular slot 5182 of the cam sleeve 5180. To extend the implantation unit 5016 from the retracted position to the extended position, the cam sleeve 5180 can be rotated in a first direction (e.g., via the cam protrusion 5186), thereby engaging the implantation unit protrusion 5156 with a first inclined surface 5188 on the irregular slot 5182. The engagement between the implantation unit protrusion 5156 and the first inclined surface 5188 causes the implantation unit 5016 to move axially relative to the housing 5150 and into the extended position. Figure 35 ).

[0122] Similarly, to retract the implant unit 5016 from its extended position to its retracted position, the cam sleeve 5180 can rotate in a second direction (relative to the first direction), thereby engaging the implant unit protrusion 5190 with the second inclined surface 5188 on the irregular slot 5182. The engagement between the implant unit protrusion 5156 and the second inclined surface 5190 causes the implant unit 5016 to move axially relative to the housing 5150 and enter the retracted position. Figure 34). In the illustrated embodiment, a spring 5191 disposed between the housing 5150 and the implant unit 5016 is configured to bias the implant unit in the retracted position. Additionally or alternatively, the implant unit 5016 can be locked in the extended position and unlocked in the retracted position. For example, a ball lock, a detent lock, a snap lock, a magnetic lock, or an electromagnetic lock can be disposed on or included with the housing 5150 and configured to lock the implant unit 5016 in the extended position.

[0123] Referring now to Figure 36 When the hair implant device 5010 is inserted into the housing 5150, the user interaction portion 5018 can be axially advanced to a predetermined axial position relative to the housing 5150. The user interaction portion 5018 can include radial tabs 5168 extending radially outward therefrom. As described below, the user interaction portion flange 5090 and the radial tabs 5168 can be configured to push a locking system to axially lock the user interaction portion 5018 relative to the housing 5150 (and the shell 5012). The radial tabs 5168 can be received within the housing and the radial tabs 5168 can contact an inner surface of the housing 5150 to initially displace the tabs 5168 radially inward (e.g., elastically). The user interaction portion 5018 can then be axially inserted to the predetermined position to cause the radial tabs 5168 to cooperate with radial slots 5166 formed in the housing 5150. The radial tabs 5168 can then snap radially outward into the radial slots 5166, thereby locking the axial position of the user interaction portion 5018 and the pin. To move the user interaction portion 5018 out of this axial position, the user interaction portion flange 5090 can be squeezed or moved radially inward, thereby disengaging the radial tabs 5168 from the radial slots 5166. The user interaction portion 5018 can then be free to move axially again. In the illustrated embodiment, the user interaction portion flange 5090 includes two radial tabs 5168 that are circumferentially separated by about 180 degrees. Correspondingly, the housing 5150 includes two circumferentially opposite radial slots 5166 to receive the radial tabs 5168. Additionally or alternatively, the user interaction portion 5018 can be locked in the predetermined axial position. For example, a ball lock, a detent lock, a magnetic lock, or an electromagnetic lock can be disposed on or included with the housing 5150 and configured to lock the user interaction portion 5018 in the predetermined axial position.

[0124] Referring now to Figures 37-38 , similar to the hair implant operation of Figures 12-16 , the hair implant device 5010 can be used to perform a hair implant operation on a patient. For example, the device 5010 is designed to perform an extraction procedure; a coupling procedure; an opening procedure (as shown in Figure 37 ); and an implant procedure (as shown in Figures 37-39 ). Accordingly, only the following will be described with reference to Figures 12-16different aspects explained. Specifically, in the procedure shown, the extraction procedure, the coupling procedure, and the opening procedure are not shown because these procedures are substantially the same as described above with respect to Figures 12-14 the extraction procedure, the coupling procedure, and the opening procedure.

[0125] Figures 37-39 A hair grafting device 5010 used during an implant procedure is shown. As Figure 28 shown, with the distal cutting end 66 of the split needle 5032 inserted into a small opening 124 created during the opening procedure and the pith 112 disposed within the coring needle 5026 (see Figure 33 ), the hair grafting device 5010 can be moved into an implant configuration. In the implant configuration, the split needle 5032 can remain in the small opening 124, and the user interaction 5018 can be advanced until the radial tab 5168 locks with the housing 5150. Thus, the pin can be moved to an insertion position (e.g., with the user interaction 5018). When the user interaction 5018 is moved to the insertion position, the pin drives the pith 112 out of the coring needle 5026 and into the small opening 124.

[0126] After the pith 112 has been pushed out of the coring needle 5026 and into the small opening 124, the pin can be axially retained in the insertion position by the push-lock feature of the interaction flange 5090, as previously described, such that the radial tab 5168 of the user interaction flange 5090 mates with the radial slot 4166 of the housing 5150. The split needle 5032 of the implant unit 5016 can then be removed from the small opening 124 by rotation of the cam sleeve 5180, as described above, leaving the pith 112 Figure 38 with the hair follicle implanted therein (see Figure 39 ). According to the procedure shown, the pin can then remain in contact with the pith 112 as the split needle 5032 is withdrawn from the recipient site 120. Next, the pin can be withdrawn by unlocking the user interaction 5018 from the housing 5150, and the hair grafting device 5010 can be removed from the recipient site 120 (see

[0127] Referring to Figure 40 and 41 , a hair grafting device 6010 is shown for simultaneously extracting tens, hundreds, or thousands of hair follicles from a donor site of a donor and then simultaneously implanting tens, hundreds, or thousands of hair follicles into a recipient site of a patient. It should be understood that similar elements will be labeled using similar reference numbers, except that these numbers will be listed in the form of 6000 (e.g., hair grafting device 10 and hair grafting device 6010). Unless otherwise shown or described, it should be understood that elements sharing similar reference numbers are substantially similar to elements previously described herein, including their functionality. As in Figure 40As can be seen in the illustration, the hair transplant device 6010 includes a housing 6012 that contains a plurality of extraction units 6014 to which a corresponding plurality of needles 6080 are movable relative to the coring needles 6026 of the extraction units 6014.

[0128] The coring needles 6026 can be independently movable relative to one another. Each coring needle 6026 can be movable along x, y, z, xy, yz, zx axes. Thus, the density of the extracted hair tissue can be varied. Similar to the previously described devices, splitting needles can be coupled end-to-end with the coring needles (e.g., via coupling units 70, see Figure 7 ), and the density of the implant needles can be varied. Thus, the hair tissue can be extracted at one density and implanted at a different density.

[0129] The hair transplant device 6010 includes an array of coring needles 6026 similar to the extraction units 14 described above, and a user interface 6018 similar to the user interface 18 described above for extracting a follicle (or follicles) includes a corresponding array of pins 6080. Again, the pins 6080 include a central lumen 6094 that can be coupled to a suction source or an implant source. Implant actuators 6092 can be coupled to the user interface 6018 so that the plurality of pins 6080 can be individually actuated by a plurality of implant actuators, or together by a single implant actuator 6092.

[0130] As described above, each coring needle 6026 can be movable along a plurality of axes. In the illustrated embodiment, each coring needle 6026 can be independently linearly movable along a single axis by being coupled to an axial drive system. In the illustrated embodiment, the axial drive system is a ball screw or linear rail 6200. The ball screw 6200 can be coupled to a drive actuator 6210 (e.g., a motor) or independently coupled to a plurality of drive actuators. The drive actuator 6210 can be configured to rotate the ball screw 6200 to adjust the position along the drive axis 6220. It should be noted that the drive actuator can be configured to cooperate with the automated system described above for similar uses to those described above with reference to the hair transplant device 10.

[0131] The hair transplant device 6010 can also be configured for adjusting the vertical position (e.g., along the z-axis) of one or more of the plurality of coring needles 6026. For example, as Figure 40As shown, the z-axis actuators 6212 can be coupled to the extraction unit 6014 such that the plurality of coring needles 6026 can be individually actuated by the plurality of z-axis actuators or together by being coupled to a single z-axis actuator 6212. According to other embodiments, the ball screws 6200 can be arranged in different planes (e.g., by mechanical connections) and the z-axis actuators can be coupled to the ball screws 6200 such that the z-axis actuators position the ball screws 6200 themselves vertically.

[0132] Figure 41 A hair transplantation device 7010 is shown, which tissue includes a non-linear array of a plurality of coring needles 7026. It should be understood that like elements will be labeled using like reference numerals, except that these numbers will be listed in the form 7000 (e.g., hair transplantation device 6010 and hair transplantation device 7010). Unless otherwise shown or described, it should be understood that elements sharing like reference numerals are substantially similar to elements previously described herein, including their functionality. Figure 41 The hair transplantation device 7010 is substantially similar to the hair transplantation device 6010 Figure 40 except that the coring needles 7026 are movable about two drive axes.

[0133] Each coring needle 7026 needle can be moved along two axes, a first drive axis 7220 and a second drive axis 7230. In the illustrated embodiment, each coring needle 7026 can be linearly moved along a first drive axis 7220 independently along a first ball screw 7200 coupled to a first drive actuator 7210. Similarly, each coring needle 7026 can be linearly moved along a second drive axis 7230 independently along a second ball screw 7250 coupled to a second drive actuator 7240. Thus, under the control of the first and second drive actuators, the coring needles 7026 can be moved non-linearly along a plane in order to control the extraction density of the donor site or the implant density of the recipient site when the coring needles 7026 are coupled to splitting needles. In the illustrated embodiment, the first drive axis 7220 is orthogonal to the second drive axis 7230. It should also be understood that a third drive axis with a third drive actuator and a third ball screw can also be incorporated to provide freedom of movement of the coring needles along three axes.

[0134] The specific embodiments have been shown by way of example in the drawings and described above in detail. It will be apparent to those skilled in the art, however, that various modifications and alternatives to those aspects could be developed in part from the foregoing description. It is understood, therefore, that this application is not intended to be limited to the particular form disclosed. Rather, it is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the application as defined by the appended claims.

[0135] For example, the previously described hair transplant devices can be incorporated into an automated hair transplant system, such as the transplant system described in U.S. Patent Application No. 16 / 629,657, entitled “Systems and Methods for Hair Transplant,” which is incorporated by reference herein in its entirety. Generally, as shown in Figure 42 The hair transplant system 8000 can include a controller 8300 having one or more inputs, processors, memories, and outputs, and can be configured to operate a single hair transplant tissue 8010 and / or a matrix of hair transplant devices to perform steps of extracting follicles from a donor site, creating openings in a recipient site, and implanting follicles into the recipient site. The hair transplant devices can include, for example, any of the hair transplant devices 10, 1010, 2010, 3010, 4010, 5010, 6010, or 7010 described above.

[0136] The hair transplant system 8000 can include, access, and / or communicate with one or more user interaction components and / or imaging systems 8306 by way of a wired or wireless connection with input devices. In various embodiments, the hair transplant system 8000 can include any computing device, apparatus, or system configured to execute instructions and provide input / output capabilities, and can operate as part of or in cooperation with other computing devices and sensors / detectors (local and remote). In this regard, the hair transplant system 8000 can be a system designed to integrate various software and hardware capabilities and functions, and / or can be capable of autonomous operation.

[0137] The input devices can include any one or more different input elements, such as a mouse, keyboard, touchpad, touchscreen, buttons, etc., for receiving various selection and operational instructions from a user by touch, movement, voice, etc. The input can also include various drives and containers for receiving various data and information, such as flash drives, USB drives, CD / DVD drives, and other computer readable media containers. To this end, the input can also include various communication ports and modules, such as Ethernet, Bluetooth, or Wi-Fi, for exchanging data and information with these and other external computers, systems, devices, machines, mainframes, servers, or networks.

[0138] In addition to being configured to perform various steps for operating a hair transplantation system, the processor 8302 can be configured to execute instructions stored in a non-transitory computer readable medium in the memory 8304. The instructions that can be executed by the processor 8302 can correspond to various instructions for completing a hair transplantation procedure, such as those previously described. Although the non-transitory computer readable medium can be included in the memory 8304, it can be appreciated that the instructions that can be executed by the processor 8302 can additionally or alternatively be stored in another data storage location having a non-transitory computer readable medium.

[0139] In some aspects, the processor 8302 can be configured to receive and process image data of a subject, such as a donor or a recipient, captured by the imaging system 8306 to identify hair follicles and hair follicle orientation within a donor site of a donor and / or to determine implant locations and necessary implant angles within a recipient site of a recipient. In some aspects, the processor 8302 can access information and data stored in or transmitted by the imaging system 8306, including video signals. In some aspects, the imaging system 8306 can acquire individual images or continuous video signals using, for example, a camera, an infrared scanning system, or any other image capture or video recording device that can be used for periodic imaging and / or scanning and / or continuous recording of a subject.

[0140] In some cases, the imaging system 8306 can be used to align the coring needle of the hair transplantation device 8010 along a hair shaft or multiple hair shafts. In some non-limiting examples, the imaging system 8306 can include a camera, such as a standard Cmos camera or an OCT imaging device. Since OCT imaging is able to view into tissue perpendicularly, the OCT imaging device can allow for more precise alignment of the coring needle relative to the hair shaft. Once the pith is extracted, the hair transplantation device 8010 can position itself over the recipient site for implantation of the hair under the control of the automated hair transplantation system 8000. A computer image of the recipient site can similarly be obtained, which can show the patient’s natural hairline and indicate where the hair should be implanted. The ability of the needle to move independently can allow for better shaping and following of the natural hairline, such as in the hair transplantation devices 2010, 6010, or 7010. In some cases, the patient can be positioned in a support frame or laid down to limit movement during this process.

[0141] The output device of the hair transplantation system 8000 is configured to effect operation of the hair transplantation device 8010. Thus, the output device can include various robotic devices that are capable of manipulating and operating the hair transplantation device 712 and its interactive features to effect extraction of a hair follicle from a donor site, formation of an opening in a recipient, and implantation of the hair follicle into the opening in the recipient, as described above with reference to any of the hair transplantation devices 10, 1010, 2010, 3010, 4010, 5010, 6010, or 7010.

[0142] Thus, a user such as a physician or other hair transplantation procedure personnel can communicate with the user interface to instruct the automated hair transplantation system 8000 to effect a hair transplantation procedure on a subject in accordance with any of the devices and methods described herein.

[0143] Thus, the devices, systems, and methods described herein allow a user to extract at least one hair follicle from a donor site, create at least one opening in a recipient site, and repeatedly implant the at least one hair follicle into the at least one opening using a single device without any physical manipulation of the at least one hair follicle. Thus, these devices, systems, and methods allow for a more efficient, reliable, and predictable hair transplantation procedure as compared to conventional devices, systems, and methods.

[0144] In order to inform the public of the scope of the present invention, the following claims are made.

Claims

1. A hair transplant device, comprising: Extraction unit, the extraction unit including a core-retrieving needle configured to extract at least one hair follicle from a donor site; An implantation unit, removably coupled to the extraction unit, the implantation unit including a splitting needle configured to create an opening in a recipient site; A housing, the housing being connected to the extraction unit; as well as A user interaction unit extends from the housing and is movable relative to the housing; When the extraction unit and the implantation unit are assembled together, the core-retrieving needle and the splitting needle are arranged along a common axis and are axially separated, so that the user interaction part can be displaced to drive the hair follicle from the core-retrieving needle into the opening of the recipient site for implantation.

2. The hair transplant device as described in claim 1, characterized in that, The core-retrieving needle has a first cutting end configured to cut into the donor site and a first connecting end opposite to the first cutting end, and the core-retrieving needle is connected to the extraction unit at the first connecting end.

3. The hair transplant device as described in claim 2, characterized in that, The splitting needle has a second cutting end configured to cut into the receptor site and a second connecting end opposite to the second cutting end.

4. The hair transplant device as described in claim 3, characterized in that, It also includes a connector configured to connect the core-taking needle and the splitting needle together at the first cutting end and the second connecting end, respectively.

5. The hair transplant device as described in claim 4, characterized in that, The connector includes a hollow core, allowing a continuous inner cavity to be defined by the core-taking needle, the connector, and the splitting needle.

6. The hair transplant device as described in claim 1, characterized in that, The core-taking needle and the splitting needle are defined by the same diameter.

7. The hair transplant device as described in claim 1, characterized in that, The core-taking needle defines a first diameter and the splitting needle defines a second diameter, the first diameter and the second diameter being different.

8. The hair transplant device as claimed in claim 1, characterized in that, The user interaction unit includes a pin that forms a central cavity in fluid communication with the core retrieval cavity within the core retrieval needle.

9. The hair transplant device as described in claim 8, characterized in that, The central cavity is configured to deliver gas or liquid into the core-retrieving cavity of the core-retrieving needle while the hair follicle is implanted into the recipient site.

10. The hair transplant device as claimed in claim 8, characterized in that, The pin includes a mesh portion connected to the distal end of the needle, the mesh portion being configured to prevent the extracted hair follicle from entering the central cavity of the pin.

11. The hair transplant device as claimed in claim 8, characterized in that, The central cavity is configured to be connected to a suction source to deliver suction force to the core-retrieving cavity of the core-retrieving needle, thereby enabling the extraction of the hair follicle from the donor site.

12. The hair transplant device as described in claim 8, characterized in that, The central cavity is configured to be connected to a fluid source to deliver liquid implantant to the core-retrieval cavity of the core-retrieval needle via the central cavity in the pin while the hair follicle is implanted into the recipient site.

13. The hair transplant device as described in claim 12, characterized in that, The liquid implant includes glycerin or polyethylene glycol.

14. The hair transplant device as claimed in claim 1, characterized in that, The extraction unit further includes an extraction stop that is movable relative to the core-retrieving needle and configured to adjust the core-retrieving depth. The extraction stop includes a first interactive surface that is configured to contact the surface of the donor site at a predetermined core-retrieving depth during the extraction of the hair follicle.

15. The hair transplant device as claimed in claim 1, characterized in that, The implantation unit further includes an implantation stop that is movable relative to the splitting needle and configured to adjust the implantation depth. The implantation stop includes a second interactive surface that is configured to contact the surface of the recipient site at a predetermined implantation depth during hair follicle implantation.

16. The hair transplant device as claimed in claim 1, characterized in that, The extraction unit includes a guide configured to receive a slot on the implantation unit to rotatably lock the implantation unit relative to the extraction unit.

17. The hair transplant device as claimed in claim 1, characterized in that, It also includes an outer casing that at least partially surrounds the housing, the outer casing including a slot configured to receive at least a portion of the user interaction unit to lock the axial position of the user interaction unit relative to the housing.

18. The hair transplant device as claimed in claim 1, characterized in that, The core-retrieving needle is a plurality of core-retrieving needles, each of which is used to extract one or more hair follicles from the donor site. The splitting needle is a plurality of splitting needles, and the plurality of core-taking needles are configured to create a plurality of corresponding openings in the recipient site; as well as Multiple pins are movable relative to the housing via the user interaction section, wherein each of the multiple pins is configured to be received within one of the multiple core needles.

19. The hair transplant device as claimed in claim 18, characterized in that, Each of the multiple core-retrieving needles or each of the multiple splitting needles can be independently adjusted to change the density of extracted or implanted hair tissue.

20. The hair transplant device as claimed in claim 18, characterized in that, The axial position of each of the multiple core-taking needles is adjustable relative to the housing.

21. A hair transplant device, comprising: An extraction unit is configured to extract at least one hair follicle from a donor site. The extraction unit includes a core-retrieving needle having a first cutting end configured to form a core from the donor site and a first connecting end opposite the first cutting end. An implantation unit, removably coupled to the extraction unit, the implantation unit including a splitting needle having a second cutting end configured to form an opening into a receptor site and a second connecting end opposite the second cutting end; A housing, the housing being connected to the extraction unit; A pin, which is movable relative to the housing and configured to be slidably received within the core needle; The connector, when the extraction unit and the implantation unit are assembled together, is configured to connect the core-retrieving needle and the splitting needle together at the first cutting end and the second connecting end, respectively. A user interaction unit connected to the pin, wherein the user interaction unit is configured to move a predetermined amount relative to the housing to control the delivery depth of the hair follicle within the opening in the receptor site; as well as A housing, removably coupled to the hair transplant device and at least partially surrounding the housing, the housing including a slot configured to receive the user interaction portion to lock the pin in an axial position relative to the housing.

22. The hair transplant device as claimed in claim 21, characterized in that, The housing defines a stop surface that forms an axial stop for the implantation unit.

23. The hair transplant device as described in claim 22, characterized in that, The housing further defines an interaction surface configured to contact the receptor portion, the interaction surface being axially separated from the stop surface.

24. The hair transplant device as claimed in claim 21, characterized in that, It also includes a barrel configured to rotate about an axis of rotation parallel to the axis defined by the core needle, the barrel including a plurality of openings to selectively align with the core needle, such that cores from the donor site can be stored in each of the plurality of openings on the barrel.

Images