WO2020063711A1 - 毛囊提取设备 - Google Patents
毛囊提取设备 Download PDFInfo
- Publication number
- WO2020063711A1 WO2020063711A1 PCT/CN2019/108029 CN2019108029W WO2020063711A1 WO 2020063711 A1 WO2020063711 A1 WO 2020063711A1 CN 2019108029 W CN2019108029 W CN 2019108029W WO 2020063711 A1 WO2020063711 A1 WO 2020063711A1
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- WO
- WIPO (PCT)
- Prior art keywords
- module
- extraction device
- hair follicle
- fixed
- rotation
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
Definitions
- the invention relates to the field of minimally invasive dermatological surgical instruments, in particular to a hair follicle extraction device.
- Hair follicle transplantation is mainly a surgical technique that extracts healthy hair follicle tissue from the occipital region and transplants it to the site of hair loss to play a way to regenerate hair.
- the mainstream hair follicle extraction equipment products on the market there are the following disadvantages: During the process of cutting the opening skin with the tube type of the hair follicle extraction device, the operator needs to manually push the tube type drill into the skin. The entry direction and force are controlled by the operator's hand.
- the tubular drill will cut the hair follicles; the process of the tubular drill incision deep into the skin due to the cast
- the rotation of the drill generates a torsional force on the cylindrical implant inside the tubular drill, which is easily deformed by the tubular drill after being deformed or twisted directly.
- the pressure of the tubular drill on the skin will increase, and the deformation of the skin will cause the hair follicles to bend and shift.
- the purpose of the present invention is to overcome the above-mentioned shortcomings existing in the prior art, and to provide a hair follicle extraction device.
- the hair follicle extraction device can achieve the effects of reducing the difficulty of surgery, reducing the rate of hair follicle transection, and shortening the operation time.
- a hair follicle extraction device comprising:
- Tubular drill tubular drill protrudes from the front end of the handle, and slides linearly relative to the handle
- Rotary module the rotary module drives the tubular drill to rotate
- a pushing module is used to push the tubular drill forward during the rotation of the tubular drill so that it slides linearly relative to the handle.
- the present invention has the following advantages and effects:
- the operator's hand can be more focused on grasping the extraction device, controlling the cutting (perforating) direction more accurately during the hair follicle extraction process, eliminating the torque on the cylindrical graft, and reducing the hair follicle transection rate during the hair follicle extraction process. (Follicles cannot survive after transection);
- the propulsion module includes a propulsion spring, and two ends of the propulsion spring respectively fix a rotary shaft and a tubular drill of the rotation module.
- the hair follicle extraction device using this structure has the following advantages: (1) the propulsion module is located in front of the rotary module, and the propulsion module directly pushes the tubular drill. During the work, the position of the rotary module is unchanged, and the propulsive force of the tubular drill is not rotated. Effects of module gravity and inertia. (2) Since the rotary module is not pushed and retracted with the tubular drill, the problem of smooth and insensitive sliding of the rotary module is avoided. (3) The propelling spring is used as a coupling to transmit torque, eliminating vibration caused by eccentricity.
- the front end of the tubular drill is subjected to skin pressure, and the propulsion spring is compressed. After the motor is started, the motor drives the tubular drill to rotate through the propulsion spring, and the tubular drill cuts the skin and advances under the pushing force of the pushing spring. Because the compression amount of the thrust spring is constant, the thrust formed by the rebound of the thrust spring is approximately constant. The advance speed of the tubular drill will be determined by the speed of cutting the skin. (5) During the advancement of the tubular drill, since the thrust force of the tubular drill on the skin is approximately constant, the operator holds the handle, and it is easier to control the position of the handle relative to the skin.
- a positioning pin is fixed at the front end of the handle member, and the positioning pin is provided with a guide hole, and the guide hole and the outer wall of the tubular drill adopt a clearance fit.
- the tubular drill not only slides more linearly, but also does not eccentrically rotate.
- a support flap is fixed at the front end of the positioning needle, and the inner groove of the support flap is engaged with the inner wall of the guide hole, and the diameter of the inner groove is the same as the inner diameter of the guide hole.
- the front end of the support flap is arc-shaped and open. Chamfer.
- the front end of the support flap of this technical solution is arc-shaped and chamfered, so that when the front end of the support flap is supported on the skin, the support area of the front end of the support flap is increased, and it does not cause large pressure after contacting the skin, and it is not easy. Sliding against the skin, the handle piece uses the front end of the support flap as a fulcrum for positioning, thereby improving the accuracy of the punching operation.
- the propulsion module further includes a spring coupling for inserting and mating with a rotation shaft of the rotation module, one end of the spring coupling fixes the propulsion spring, and the spring coupling is rotationally connected with the handle member and axially fixed.
- a spring coupling By setting a spring coupling, the rotation axis of the rotation module and the propulsion spring are fixed (that is, circumferentially fixed and torque is transmitted), so that the propulsion module and the rotation module can be separated from each other, which facilitates the recycling of the rotation module.
- the rotation module may be a motor or a miniature air motor.
- it further comprises an inner casing, the rotation module is fixed in the inner casing, the rotation axis of the rotation module protrudes from the front end of the inner casing, and the inner casing is inserted and fixed in the handle.
- the rotation module is arranged in an independent inner housing relative to the handle member, and the inner housing is inserted and fixed in the handle member, so that the rotation module can not only be reused and reduce the use cost of the product, but also the rotation module is Isolate inside the handle and do not contaminate the sterile area of the surgery.
- a battery, a remote control module are further arranged in the inner casing, and the battery, the remote control module and the rotation module are connected in this order. Therefore, it is convenient to control the rotation of the motor through the existing remote control technology.
- an opening is formed at the rear end of the handle member, and the inner shell is inserted into the handle member from the opening, and a handle rear cover for closing the opening is detachably fixed on the handle member.
- the propulsion module adopts an ejection-type propulsion module
- the rotation module is located within the ejection range of the ejection-type propulsion module
- the rotation module is slidably disposed on the handle member
- the rotation axis of the rotation module is fixed with a tubular drill
- the ejection-type propulsion module is installed at On the handle piece.
- the synchronization of the propulsion action does not need to be pushed in manually, because the position deviation caused by the jitter and offset caused by the push operation of the hand can be avoided, and the skin tissue can be accurately and automatically penetrated; and because the tubular drill is ejected, The module is pushed into the skin in a pop-up manner, so the pushing speed is extremely fast.
- the contact surfaces between the ejection-type propulsion module and the rotation module are spaced a certain distance apart.
- the contact surfaces of both the ejection-type propulsion module and the rotation module may be in direct contact.
- the rotary module is directly pushed and accelerated by the ejection-type propulsion module, not the impact acceleration. Therefore, the drilling speed of the tubular drill on the rotary module is slower than the above-mentioned impact acceleration, and the use effect is slightly difference.
- the ejection-type propulsion module includes a propulsion mechanism and an ejection mechanism
- the propulsion mechanism is mounted on the handle member
- the ejection mechanism includes a fixing sleeve, a sliding member, an impact member, a reset compression spring, and a stored-pressure compression spring.
- the fixed sleeve is fixed on the handle member
- the sliding member is slidably connected to the fixed sleeve
- the impact member is slidably connected to the sliding member.
- the two ends of the return compression spring are respectively against the sliding member and the fixed sleeve.
- the ends are respectively against the sliding member and the impact member, and a limiting groove is provided on the fixed sleeve.
- the limiting groove includes a blocking groove for restricting the linear movement of the impact member relative to the fixed sleeve and a sliding groove for sliding the impact member relative to the fixed sleeve.
- the slot is in communication with the sliding slot.
- the impact member is fixed with a sliding column for snapping into the limit slot.
- the sliding member is provided with an upper inclined surface for pushing the sliding column from the blocking slot into the sliding slot and for sliding the column. Push into the lower bevel of the retaining groove from the sliding groove.
- the role of the propulsion mechanism is mainly to push the slider to move linearly.
- the propulsion mechanism can adopt the existing linear propulsion structure on the market, such as a cylinder, an electric push rod, and the like.
- the rotation module includes a drilling motor and a motor connection sleeve.
- the motor connection sleeve is slidably mounted on the handle member, and a connection sleeve compression spring for jacking the motor connection sleeve upward is provided in the handle member, and the drilling motor is embedded in the motor connection sleeve.
- the tubular drill and the rotor of the drill motor are fixed, and the upper end of the connecting sleeve is fixed with a fixing seat for receiving the ejection of the ejection-type propulsion module.
- the impact member is inserted in the sliding member, and the sliding member is inserted in the fixing sleeve.
- the sliding member is provided with a side hole, and the upper and lower ends of the side hole are an upper inclined surface and a lower inclined surface, respectively, and the sliding column passes through the side hole and is inserted into the limiting groove.
- the tubular drill is fixed on a plastic base, and the plastic base fixes a rotation axis of the rotation module.
- the propulsion mechanism uses a micro-cylinder, and the micro-cylinder is connected to a gas supply system, and the gas supply system is connected with a control module that controls the air supply system to vent the micro-cylinder.
- the propulsion mechanism adopts an electric push rod
- a handle has a built-in battery.
- the battery is connected to the electric push rod and the drilling motor of the rotary module.
- the built-in battery supplies power to the electric push rod and the rotary motor of the rotary module.
- a wireless communication module (such as a Bluetooth module, wifi, etc.) is provided on the control board of the drilling motor to which the drilling motor is connected, and the work of the drilling motor of the electric push rod and the rotation module is realized through wireless control.
- a slot is formed in a side wall of the connection sleeve, and a side of the handle member is fixed with a sub shell.
- the propulsion mechanism is connected to a foot control module.
- the control of the propulsion mechanism is realized through the stepping on the foot, and the hand and foot are used in the extraction process, which improves the convenience of the operation.
- the handle member includes an upper case and a lower case
- the lower case is detachably fixed to the upper case
- the rotation module and the ejection type propulsion module are respectively installed on the lower case and the upper case.
- the propulsion module, the rotation module, and the tubular drill are sequentially arranged from the back to the front, and the rotary shaft of the rotary module is fixed to the tubular drill, and the rotary module is pushed by the pushing module to realize linear sliding relative to the handle.
- a protective sleeve is fixed at a front end of the handle member, a front end of the tubular drill protrudes from a front opening of the protective sleeve, and a gap between the front end opening diameter and the outer diameter of the tubular drill is matched.
- a coupling is fixed at the rear end of the tubular drill, and the coupling has an insertion hole for inserting the rotation axis of the rotation module, and when the rotation axis of the rotation module is inserted into the insertion hole, the coupling shaft The rotation axis of the actuator and the rotation module is kept radially fixed.
- the rotation shaft and the insertion hole adopt an interference fit or the insertion hole with a built-in adhesive is inserted through the rotation shaft, so that the rotation shaft and the coupling cannot be easily separated.
- the rotation module includes a rotating electric machine and a motor fixing sleeve.
- the rotating electric machine is inserted into the motor fixing sleeve and kept fixed with the motor fixing sleeve, and the motor fixing sleeve slides inside the handle.
- the motor shaft of the motor is the rotation shaft of the rotation module.
- the hair follicle grows obliquely and forms an acute angle with the surface of the skin.
- the needle tip of the positioning needle lightly touches the surface of the skin. It plays a role in guiding and restricting the displacement of the tubular drill that is advancing. Acting on the skin, the incision formed is more in line with the requirements of surgery.
- a cross section of the positioning needle has a circular arc shape or a circular structure.
- the included angle between the axis of the positioning needle and the intersection line formed by the cutting surfaces on both sides of the tip of the needle tip is 35 ° to 60 °.
- the propulsion module is a propulsion compression spring built into the handle member, and two ends of the propulsion compression spring respectively abut the rear end of the rotation module and the handle member.
- the working mode of the propulsion module is as follows: When the longitudinal axis of the tubular drill and the longitudinal axis of the hair follicle are kept in a straight line, the edge of the tubular drill touches the surface of the scalp. At this time, the tubular drill receives force and transmits it to the rotary module, and finally advances The compression spring is compressed. At this time, the pressure required by the tubular drill to penetrate the skin is greater than the elastic force of the pushing compression spring. The tubular drill cannot cut the skin. After the rotation module works, the tubular drill rotates, and the tubular drill begins to rotate. After the skin tissue is cut, the resistance decreases. The gravity of the rotating module and the spring force act on the drill bit, pushing the tubular drill to cut forward into the skin.
- the propulsion module includes a propulsion motor, a screw rod, and a nut.
- the rotation module is fixed on a sliding seat.
- a nut is fixed on the sliding seat.
- the screw rod and the nut cooperate, and the screw rod fixes the motor shaft of the propulsion motor.
- Balls can also be set between the screw and nut to realize the ball screw pair.
- the propulsion module adopts a push-pull electromagnet
- a base of the push-pull electromagnet and a handle are fixed
- a push rod of the push-pull electromagnet fixes the rotation module.
- the push-pull type electromagnet can realize the fast reciprocating movement of the rotary module, and has the characteristics of compact structure, small stroke and fast movement.
- the propulsion module includes a guide tube and an elastic push rod.
- One end of the elastic push rod abuts the rotation module.
- the guide tube is sleeved on one end of the elastic push rod.
- a return compression spring is provided for abutting against the rotation module, the other end of the guide tube is fixed to the fixed part of the propulsion mechanism, and the other end of the elastic push rod is fixed to the movable part of the propulsion mechanism.
- the pushing mechanism adopts a base and a pedal, one end of the pedal is hinged on the base, and a pedal return spring for lifting the pedal upward is provided on the base, and the other end of the guide pipe is fixed to the base to elastically push The pedal is fixed at the other end of the lever.
- the propulsion module includes a guide cylinder, a piston, a piston rod, a conduction tube and a rubber bladder.
- the outlet of the rubber bladder is connected to one end of the conduction tube, and the other end of the conduction tube is connected to the guide cylinder.
- a piston is slidably arranged, one end of the piston rod is fixed to the piston, the other end of the piston rod is against the rotation module, and a reset pressure spring is provided on the handle member for backwardly against the rotation module.
- the outer wall of the tubular drill is provided with a plurality of scale marks for identifying a protruding distance of the tubular drill.
- the scale mark can be a color ring mark.
- the color ring mark is added to the tubular drill. The operator only needs to align the color ring with the hole edge of the protective sleeve to accurately obtain the length of the tubular drill protruding from the protective sleeve of the drill.
- the pitch can be set to 1 ⁇ 2mm.
- a rear end of the handle member is installed with a movable rear cover for adjusting the front-rear position with respect to the handle member, and two ends of the push compression spring abut against the movable rear cover and the rotation module, respectively.
- the movable back cover can be adjusted back and forth with respect to the handle member, so as to adjust the elasticity of the compression spring when the tubular drill top is on the skin (the tubular drill is pushed into the handle at this time).
- the movable back cover and the handle can be connected in a conventional distance-adjustable manner such as threaded connection and snap connection.
- a protective sleeve is fixed at the front end of the handle member by screwing, and the coupling and the protective sleeve are both provided with a mounting operation hole for passing through the rotating tool.
- the tube drills that come in contact with the skin and the protective sleeve near the scalp area should be disposable.
- the protective sleeve, coupling, and tube drill fixed on the coupling can be used.
- One-time disassembly and replacement, easy and fast operation; the rotation process of the rotating shaft, the insertion hole and the rotation of the protective sleeve are synchronously implemented, which greatly reduces the operation difficulty and improves the assembly accuracy.
- the protective sleeve and the coupling are both provided with a drainage hole, and the drainage hole of the coupling is communicated with the inner hole of the tubular drill.
- the rotary module includes a rotary electric machine, and an output shaft of the rotary electric machine is the tubular drill.
- the rear end of the tubular drill extends from the rear end of the rotary electric machine, that is, the tubular drill penetrates through the rotary electric machine and protrudes from the rear end, and the tubular drill replaces the existing motor shaft.
- a limiting member for restricting the rotation of the rotary module relative to the handle member is fixed in the internal passage of the handle member or the rotating module.
- the limit piece can adopt one form or combination of the following structures, but is not limited to
- the limiting member is a limiting rod fixed in an internal passage of the handle member, and a rear end of the rotation module is provided with a fixed sleeve slide through which the limiting rod passes.
- the limiting member is a slider fixed on the outer wall of the rotation module, and an inner wall of an inner channel of the handle member is provided with a handle member chute for sliding the slider.
- the limiting member is a guide rod fixed in the handle member, and the guide rod and the rotation module slide together.
- the propulsion module, the rotation module, and the tubular drill are sequentially arranged from the back to the front.
- the rotary shaft of the rotary module and the rear end of the tubular drill respectively fix the two ends of the soft shaft.
- the handle slides straight.
- FIG. 1 is a schematic structural diagram of a hair follicle extraction device according to a first embodiment of the present invention.
- FIG. 2 is an enlarged structural schematic diagram of A in FIG. 1 according to the first embodiment of the present invention.
- FIG. 3 is a schematic cross-sectional structure diagram of a hair follicle extraction device according to a first embodiment of the present invention.
- FIG. 4 is an enlarged structural schematic diagram at B in FIG. 2 according to the first embodiment of the present invention.
- FIG. 5 is an enlarged structural schematic diagram at C in FIG. 2 according to the first embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of a hair follicle extraction device according to a second embodiment of the present invention.
- FIG. 7 is a schematic structural diagram of a rotation module and a ejection-type propulsion module according to the second embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of an ejection mechanism according to the second embodiment of the present invention.
- FIG. 9 is a schematic diagram of a mounting structure of an impact member according to a second embodiment of the present invention.
- FIG. 10 is a schematic structural diagram of a sliding member according to a second embodiment of the present invention.
- FIG. 11 is a schematic diagram of a connection of a micro-cylinder according to a second embodiment of the present invention.
- FIG. 12 is a schematic cross-sectional structure diagram of a hair follicle extraction device having a single connection sleeve compression spring according to the second embodiment of the present invention.
- FIG. 13 is a schematic cross-sectional structure diagram of a hair follicle extraction device having a dual connection sleeve compression spring according to the second embodiment of the present invention.
- FIG. 14 is a schematic diagram of the internal structure of a hair follicle extraction device according to a third embodiment of the present invention.
- FIG. 15 is a schematic structural diagram of a hair follicle extraction device when a three-tube drill according to an embodiment of the present invention protrudes from a protective sleeve.
- 16 is a schematic structural diagram of a hair follicle extraction device when a three-tube drill is retracted into a protective sleeve according to an embodiment of the present invention.
- FIG. 17 is a schematic diagram of a mounting structure of a positioning pin according to the third embodiment of the present invention.
- FIG. 18 is a schematic structural diagram of cooperation between a positioning pin and a tubular drill according to the third embodiment of the present invention.
- FIG. 19 is a schematic diagram of the principle of reading the three-scale mark according to the embodiment of the present invention.
- FIG. 20 is a schematic structural diagram of a positioning pin according to the third embodiment of the present invention.
- 21 is a schematic diagram of a practical state of a hair follicle extraction device according to a third embodiment of the present invention.
- FIG. 22 is a schematic diagram of the second practical state of the hair follicle extraction device according to the third embodiment of the present invention.
- FIG. 23 is a third schematic view of the practical state of the hair follicle extraction device according to the third embodiment of the present invention.
- FIG. 24 is a schematic enlarged view of the position A in FIG. 9 of the third embodiment of the present invention.
- FIG. 25 is a schematic structural diagram of a hair follicle extraction device according to a fourth embodiment of the present invention.
- FIG. 26 is a schematic diagram of a mounting structure of a propulsion module according to a fourth embodiment of the present invention.
- FIG. 27 is a schematic diagram of a forward movement state of the rotation module according to the fourth embodiment of the present invention.
- FIG. 28 is a schematic diagram showing a backward movement state of the rotation module according to the fourth embodiment of the present invention.
- FIG. 29 is a schematic diagram of the installation principle of the fourth protective cover according to the embodiment of the present invention.
- FIG. 30 is a schematic structural diagram of a flip-flop according to a fourth embodiment of the present invention.
- FIG. 31 is a schematic diagram of a mounting structure of a propulsion module when a five-tube drill extends out of a protective sleeve according to an embodiment of the present invention.
- FIG. 32 is a schematic diagram of the installation structure of the propulsion module when the five-tube drill is retracted into the protective sleeve according to the embodiment of the present invention.
- FIG. 33 is a schematic structural diagram of a hair follicle extraction device when a six-tube drill according to an embodiment of the present invention extends a protective sleeve.
- FIG. 34 is a schematic structural diagram of a hair follicle extraction device when a six-tube drill is retracted into a protective sleeve according to an embodiment of the present invention.
- FIG. 35 is a schematic structural diagram of a propulsion mechanism according to a sixth embodiment of the present invention.
- FIG. 36 is a schematic structural diagram of a hair follicle extraction device according to a seventh embodiment of the present invention.
- FIG. 37 is a schematic diagram of the installation of the limiter when the limiter is a limit lever according to the seventh embodiment of the present invention.
- FIG. 38 is a schematic diagram of a mounting structure of a seven-tube drill according to the embodiment of the present invention.
- FIG. 39 is a schematic diagram of an installation structure of an eight-tube drill according to an embodiment of the present invention.
- the hair follicle extraction device of this embodiment includes a handle member 1, a tubular drill 21, a propulsion module 4, and a rotation module 3.
- the guide hole, the guide hole and the outer wall of the tubular drill 21 adopt a clearance fit.
- the front end of the positioning needle 5 is fixed with a support flap 51.
- the inner groove of the support flap 51 is connected to the inner wall of the guide hole, and the diameter of the inner groove is the same as the inner diameter of the guide hole.
- the front end of the support flap 51 is arc-shaped and open. Chamfer. As shown in the figure, the radial cross-section of the end of the support valve is c-shaped, the inner wall of the end of the support valve is chamfered, and the axial cross-section of the end is wedge-shaped.
- the handle piece uses the front end of the support flap as a fulcrum for positioning, thereby improving the accuracy of the punching operation.
- the pushing module includes a pushing spring 401 and a spring coupling 402.
- the rear end of the tubular drill 21 is fixed with a connecting seat 403, and the two ends of the pushing spring 401 respectively fix the spring coupling. 402 and the connecting seat 403.
- the spring coupling 402 is rotatably installed in the handle member 1 through a bearing 406.
- the mating between the spring coupling 402 and the rotation axis of the rotation module 3 may be a mating fit to achieve axial fixation, such as a spline connection manner, that is, the rotation shaft 301 of the rotation module 3
- the spline shaft 404 is fixed, and the spring coupling 402 fixes the spline sleeve 405.
- the rotation module 3 uses a motor.
- the rotation module is fixed in the inner casing 302, and a battery 303 and a remote control module are further disposed in the inner casing 302.
- the battery 303, the remote control module, and the rotation module 3 are connected in this order.
- the existing wireless control technology is used to send a control signal to the remote control module, so that the remote control module controls the rotation of the motor.
- the rotation axis of the rotation module 3 protrudes from the front end of the inner casing.
- the rear end of the handle member 1 is provided with an opening 15.
- the inner housing 302 is inserted into the handle member 1 through the opening 15, and the front end of the inner housing 302 abuts against the stopper 16 on the inner wall of the handle member 1.
- a handle back cover 17 for closing the opening 15 is detachably fixed on the handle member 1, so that the inner shell 302 is fixed in the handle member 1.
- the handle back cover 17 is screwed on the handle member 1 through threads. Therefore, it is convenient to remove the handle back cover 17 and take out the inner case 302.
- the handle 1 and the internal tubular drill 21 and the propulsion module are individually packaged disposable consumables that are sterilized at low temperature.
- the circumferential fixing structure of the driving component relative to the handle member can be realized through the conventional plugging of the inner housing 302 and the handle member 1.
- the hair follicle extraction device works as follows:
- the rotation module 3 drives the spring coupling 402 to rotate, and the spring coupling 402 drives the tubular drill 21 to rotate through the pushing spring 401;
- the tubular drill 21 cuts a circular incision on the surface of the skin.
- the tubular drill 21 is cut to a depth of 3mm to 5mm from the skin surface, and the structure of the hair follicle attached to the skin is cut off, and then the hair follicle extraction device is withdrawn
- the hair follicle extraction device can realize automatic synchronous rotation cutting and advancing actions, without manually pushing the tubular drill 21 into the skin, because the positioning deviation caused by shaking and offset caused by the pushing operation of the hand is avoided, It can penetrate the skin tissue automatically and quickly; the operator's hand can be more focused on grasping the extraction device, control the cutting (perforation) direction more accurately during the hair follicle extraction process, and eliminate the torsion of the cylindrical graft. Reduce hair follicle transection rate during hair follicle extraction (cannot survive after hair follicle transection).
- Hair follicle extraction equipment improves the efficiency of surgery and reduces safety risks, reduces the technical requirements for doctors, reduces the workload of doctors, shortens the operation time, effectively reduces the fatigue intensity of operators, the failure rate of surgery, and reduces the manual operation Depend on experience and avoid medical accidents caused by human factors during surgery.
- the propulsion module is located in front of the rotary module.
- the propulsion module directly drives the tubular drill. During the work, the position of the rotary module does not change, and the propulsive force of the tubular drill is not affected by the gravity and inertia of the rotary module.
- the propelling spring is used as a coupling to transmit torque, eliminating vibration caused by eccentricity.
- the front end of the tubular drill is subjected to skin pressure, and the propulsion spring is compressed. After the motor is started, the motor drives the tubular drill to rotate through the propulsion spring, and the tubular drill cuts the skin and advances under the pushing force of the pushing spring. Because the compression amount of the thrust spring is constant, the thrust formed by the rebound of the thrust spring is approximately constant. The advance speed of the tubular drill will be determined by the speed of cutting the skin.
- the hair follicle extraction device of this embodiment includes a handle member 1, a tubular drill 21, a rotation module 3, and a propulsion module 4.
- the propulsion module 4 adopts an ejection-type propulsion module, and a side of the handle member 1 is fixed. ⁇ ⁇ 14 ⁇
- the sub-shell 14 The handle member 1 includes an upper case 12 and a lower case 13, the lower end of the lower case 13 is fixed to the upper case 12 by screwing, and the rotation module 3 and the ejection type propulsion module are respectively installed on the lower case 13 and the upper case 12 .
- the lower casing 13 can be detached directly from the upper casing 12, the lower casing 13 and the rotation module 3 built in the lower casing 13, and fixed in rotation
- the tubular drill 21 on the module 3 is discarded as a disposable medical article, thereby improving the safety of use.
- the rotation module 3 includes a drilling motor 301 and a motor fixing sleeve 302.
- a slot 33 is formed in a side wall of the connection sleeve, and the motor fixing sleeve 302 is slidably mounted on the lower casing 13.
- a connection sleeve compression spring 34 is provided for jacking the motor fixing sleeve 302 upward.
- the connection sleeve compression spring 34 is used for lifting the motor fixing sleeve 302 upward after the rotation module 3 is impacted and moved downward to realize the reset of the rotation module 3.
- the drilling motor 301 is embedded in the motor fixing sleeve 302, and the upper end of the connection sleeve is fixed with a fixing seat 35 for receiving the ejection of the ejection-type propulsion module.
- the tubular drill 21 is fixed on a plastic base, and the plastic base fixes the rotating shaft of the drilling motor 301 or directly fixes the rotor of the drilling motor 301.
- At least two guide rods 36 are fixed in the lower casing 13, and the guide rods 36 are inserted on the motor fixing sleeve 302.
- the connection sleeve compression spring 34 can be sleeved on the motor fixing sleeve 302 (as shown in FIG. 12) or can be sleeved on the guide rod 36 (as shown in FIG. 13).
- the ejection-type propulsion module includes a propulsion mechanism 461 and an ejection mechanism.
- the propulsion mechanism 461 is mounted on the upper casing 12.
- the ejection mechanism includes a fixing sleeve 462, a sliding member 463, an impact member 464, and a return spring 465.
- the sliding member 463 is located within the range of the pushing stroke of the advancing mechanism 461, the fixing sleeve 462 is fixed to the lower casing 13, the sliding member 463 is slidingly connected to the fixing sleeve 462, and the impact member 464 is slidingly connected to the sliding member 463.
- a limiting groove is provided on the fixing sleeve 462.
- the limiting groove includes A blocking groove 467 for restricting the linear movement of the impact member 464 relative to the fixed sleeve 462 and a sliding groove 468 for sliding the impact member 464 relative to the fixed sleeve 462.
- the blocking groove 467 and the sliding groove 468 communicate with each other.
- An upper inclined surface 4610 for pushing the sliding post 469 from the blocking groove 467 into the sliding groove 468 is provided on the sliding post 469 that is locked into the limiting groove, and the sliding post 463 is pushed into the sliding groove 468 from the sliding groove 468.
- Lower slope of stop 467 4611 The impact member 464 is inserted into the sliding member 463, and the sliding member 463 is inserted into the fixing sleeve 462.
- the sliding member 463 is provided with a side hole 4612.
- the upper and lower ends of the side hole 4612 are an upper inclined surface 4610 and a lower inclined surface 4611, respectively.
- the sliding post 469 passes through the side hole 4612 and is inserted into the limiting groove.
- the propulsion mechanism 461 adopts a micro-cylinder, and the micro-cylinder is connected to an air supply system 471, and the air supply system 471 is connected with a control module that controls the air supply system 471 to vent the micro-cylinder.
- the control module adopts a foot valve 472.
- the micro-cylinder can be ventilated by pedaling.
- the micro-cylinder can use a needle-type automatic return cylinder on the market.
- the needle-type automatic return cylinder can be directly connected by a single pipe and is realized by the spring inside the cylinder. Automatic reset.
- the movable rod of the miniature cylinder directly abuts or is fixed on the sliding member 463.
- the space between the lower end surface of the impact member 464 and the upper end surface of the fixed seat 35 mainly has the following two functions: (1) Provide space for the downward acceleration of the impact member 464: After the impact member 464 is ejected, it passes through the impact member 464 After the space between the lower end surface of the lower end and the upper end surface of the fixed base 35 accelerates, the fixed base 35 is impacted, and the stroke of the impact member 464 ends randomly, so that the entire rotation module 3 is ejected.
- the fixing base 35 is composed of a hard body portion 351 (which can be made of metal or plastic) and a rubber block 352 fixed on the top of the hard body portion. Due to the large impact fast impact force, it is buffered by the rubber block, thus prolonging the service life of the product.
- the use process of the hair follicle extraction device of the present invention is as follows:
- Step 1 Hold the handle 1 and the rotary module 3 to drive the tubular drill 21 to rotate.
- the tubular drill 21 contacts the skin, and a circular incision is made on the surface of the skin.
- Step 2 Under the impact of the ejection-type propulsion module, the tubular drill 21 quickly cuts deep into the skin until the depth of 3mm to 5mm from the skin surface, the structure of the hair follicle attached to the skin is cut off, and the hair follicle extraction device is evacuated.
- Step three remove the hair follicle with medical forceps, and the extraction is completed.
- step 2 the working principle of the ejection-type propulsion module is as follows:
- the reset process of the ejection-type propulsion module is as follows: the cylinder rod of the miniature cylinder is retracted, and the fixing sleeve 462 is pushed up to the initial position by the reset spring 465.
- the lower inclined surface 4611 drives the sliding column 469 and the impact member 464 Move upward.
- the movable sliding column 469 reaches the position of the retaining groove 467, the lower inclined surface 4611 continues to move upward for a certain distance. Since the sliding column 469 cannot rise, the sliding column 469 deflects toward the retaining groove 467 along the lower inclined surface 4611 and slides into the retaining groove 467. To complete the reset of the impact member 464.
- the hair follicle extraction device of this embodiment includes a handle member 1, a tubular drill 21, a rotary module 3 for driving the tubular drill 21 to rotate, and a rotary module 3 for driving the rotary module 3 relative to the handle member 1.
- the moving propulsion module 4 and the rotation module 3 are slidably disposed on the handle member 1.
- the rotary shaft of the rotation module 3 fixes the tubular drill 21, and the propulsion module 4 is installed on the handle member 1.
- a protective sleeve 23 is fixed at the front end of the handle member 1.
- the front end of the tubular drill 21 protrudes from the front opening 231 of the protective sleeve 23.
- the aperture of the front end opening 231 and the outer diameter of the tubular drill 21 adopt a clearance fit.
- a coupling 22 is fixed at the rear end of the tubular drill 21, and the coupling 22 has an insertion hole 221 for inserting the rotation axis of the rotation module 3, and when the rotation axis of the rotation module 3 is inserted into the insertion hole 221
- the coupling shaft 22 and the rotation axis of the rotation module 3 remain radially fixed.
- the rotation shaft and the insertion hole 221 adopt an interference fit or are inserted into the insertion hole 221 with a built-in adhesive through the rotation shaft, so that the rotation shaft and the coupling 22 are not easily separated.
- the rotation module 3 includes a rotation motor 31 and a motor fixing sleeve 32.
- the rotation motor 31 is inserted into the motor fixing sleeve 32 and is kept fixed with the motor fixing sleeve 32.
- the motor fixing sleeve 32 slides in the handle member 1, and the motor fixing sleeve 32 is opposed to each other by a limiting member.
- the handle piece 1 is axially fixed.
- the motor shaft of the motor is the rotation shaft of the rotation module 3 described above.
- a positioning needle 5 is fixed on the protective sleeve 23.
- the front end of the positioning needle 5 has a support flap 51 for abutting against the skin.
- the concave wall of the positioning needle 5 covers the outside of the tubular drill 21.
- the cross-section of the positioning pin 5 has a circular arc shape or a circular structure.
- the included angle ⁇ between the axis of the positioning needle 5 and the intersection line formed by the cutting surfaces on both sides of the tip of the needle tip is 35 ° to 60 °.
- the outer wall of the tubular drill 21 is provided with a plurality of scale marks 211 for identifying the extension distance of the tubular drill 21.
- the scale mark 211 can be a color ring mark.
- a color ring mark is added to the tubular drill 21. The operator only needs to align the color ring with the hole edge of the protective sleeve 23 to accurately obtain the position of the tubular drill 21 protruding from the protective sleeve 23.
- Length, color circle logo spacing can be set to 1 ⁇ 2mm.
- the pushing module 4 is a pushing compression spring 43 built into the handle member 1. Both ends of the pushing compression spring 43 abut against the rear end of the rotation module 3 and the handle member 1, respectively.
- the rear end of the handle member 1 is provided with a movable rear cover for adjusting the front-rear position with respect to the handle member 1, and two ends of the pushing compression spring 43 abut against the movable rear cover and the rotation module 3 respectively.
- the movable back cover can be adjusted back and forth with respect to the handle member 1 to adjust the elasticity of the compression spring 43 when the tubular drill 21 is pushed against the skin (the tubular drill 21 is pushed into the handle at this time).
- the rear end of the handle member 1 is provided with a section of external thread, and the movable back cover has internal threads, and the movable back cover and the handle member 1 are threaded to adjust the forward and backward position of the movable back cover relative to the handle member 1.
- Step 1 When the drill bit is not rotating, the drill bit contacts the scalp.
- the scalp's thrust on the drill bit overcomes the weight of the rotary module and the elastic force of the compression spring 43 to retract the drill bit (as shown in Figure 21).
- the length L is 2 to 4 mm. .
- Step 2 After confirming that the drill bit and the hair follicle are at the same angle, start the drill bit rotation, and the drill bit cuts the opening skin. Using the weight of the rotary module and the thrust of the compression spring 43, the drill bit enters the skin (as shown in Figure 22). At this time, the length L1 of the drill bit extension is 6 to 8 mm.
- Step 3 Extract and transfer the hair follicle with tools such as tweezers (as shown in Figure 23).
- the tubular drill 21 when the longitudinal axis of the tubular drill 21 and the longitudinal axis of the hair follicle are kept in a straight line, the cutting edge of the tubular drill 21 touches the surface of the scalp. At this time, the tubular drill 21 receives force and transmits it to the rotary module 3, and finally advances The compression spring 43 is compressed. At this time, the pressure required by the tubular drill 21 to push into the skin is greater than the elastic force of the pushing compression spring 43. The tubular drill 21 cannot cut the skin. After the rotation module 3 works, the tubular drill 21 rotates. The tubular drill 21 starts to cut and cut skin tissue. After the skin is cut, the resistance decreases. The gravity of the rotary module 3 and the elastic force of the pushing compression spring 43 act to push the tubular 21 and push the tubular drill 21 to cut forward into the skin.
- the benefits of the hair follicle extraction device of this embodiment (1) During the process of the drill bit entering the skin, the operating hand is at a static state, which avoids errors such as deviation or change in drill bit and manual operation error caused by manual operation in the process; 2) In the process of the drill entering the skin, the spring thrust is approximately constant. The cutting of the opening of the drill is synchronized with the advancement process, which prevents the scalp from being deformed by the compression of the drill, causing the hair follicle to be cut after bending.
- the hair follicle extraction device in this embodiment is basically the same as the third embodiment, except that the propulsion module 4 in this embodiment includes a propulsion motor 441, a screw 412, a nut, and a motor fixing sleeve 32 of the rotation module 3. It is fixed on the sliding base 413. A nut is fixed on the sliding base 413. The screw rod 412 cooperates with the nut. The screw rod 412 fixes the motor shaft of the propulsion motor 441. The rotation of the driving motor 441 drives the screw 412 to rotate, so that the nut and the sliding seat 413 are linearly moved, so that the tubular drill 21 is moved back and forth. Balls can also be provided between the screw 412 and the nut to achieve a ball screw pair.
- the hair follicle extraction device works as follows:
- the needle tip of the positioning needle 5 lightly touches the skin surface
- the tubular drill 21 is rotated under the driving of the rotation module 3, and driven by the pushing module 4, the tubular drill 21 contacts the skin, and a circular incision is made on the skin surface.
- the tubular drill 21 continues to cut deep into the skin until the depth of 3mm to 5mm from the skin surface, the structure of the hair follicle attached to the skin is cut off, and the hair follicle extraction device is evacuated.
- the hair follicle extracting device of the present invention can realize automatic synchronous rotation cutting and advancing action, without manual pushing. Since it avoids the positioning deviation caused by the jitter and offset caused by the pushing operation of the hand, it can be fast and accurate. Automatically pierce the skin tissue; the operator's hand can be more focused on grasping the extraction device, control the cutting (perforation) direction more accurately during the hair follicle extraction process, eliminate the torsion of the cylindrical graft, and reduce the hair follicle extraction process Hair follicle transection rate (cannot survive after hair follicle transection).
- the hair follicle extraction device of the invention improves the operation efficiency and reduces the safety risk, reduces the technical requirements for doctors, reduces the doctor's workload, shortens the operation time, effectively reduces the operator's fatigue intensity, the failure rate of the operation, and the operation during the operation. Reliance on artificial experience to avoid medical accidents caused by human factors during surgery.
- the rear section of the handle member 1 is provided with a battery accommodating space 11 for accommodating the battery member 8, and the built-in battery member 8 of the handle member 1 is used to power the hair follicle extraction device, thereby avoiding external power supply and improving the flexibility of operation.
- the motor action control of the rotation module 3 and the propulsion module 4 can be controlled by the motor control module.
- the motor control module can be connected to the trigger via wireless communication (Bluetooth, infrared, WiFi, etc.) or wired communication.
- the trigger of the trigger 91 It is better to use the foot trigger mode (convenient for the operator, hands and feet coordinate operation). It is common knowledge in the industry how to control the motor movement through a motion trigger and wireless or wired manner, so it will not be repeated in this invention.
- the forward and backward stroke control of the rotation module 3 by the propulsion module 4 can be achieved by setting a limit switch 92 for sensing the position of the rotation module 3 in the handle member. When the handle member is against the limit switch, the thrust module 4 is triggered to stop pushing forward .
- the hair follicle extraction device of this embodiment is basically the same as the hair follicle extraction device of embodiment 3.
- the pushing module 4 uses a push-pull electromagnet 42, a base and a handle of the push-pull electromagnet 42. 1 fixed, the push rod of the push-pull electromagnet 42 fixes the motor fixing sleeve 32 of the rotary module 3.
- the push-pull electromagnet 42 can realize the fast reciprocating movement of the rotary module 3, and has the characteristics of compact structure, small stroke and fast movement.
- the hair follicle extraction device of this embodiment is basically the same as the hair follicle extraction device of embodiment 3.
- the pushing module 4 includes a guide tube 441, an elastic push rod 442, and one end of the elastic push rod 442 abuts.
- the rotation module 3 is held, the guide tube 441 is sleeved on one end of the elastic push rod 442, a section of the guide tube 441 is fixed on the handle member 1, and the handle member 1 is provided with a reset compression spring 445 for abutting against the rotation module 3,
- the other end of the guide pipe 441 is fixed to a fixed part of the propulsion mechanism, and the other end of the elastic push rod 442 is fixed to a movable part of the propulsion mechanism.
- the propulsion mechanism uses a base 443 and a pedal 444.
- One end of the pedal 444 is hinged to the base 443.
- the base 443 is provided with a pedal 444 return spring for lifting the pedal 444 upward, and the other end of the guide pipe 441 is fixed to the base.
- the other end of the seat 443 and the elastic push rod 442 fix the pedal 444.
- the elastic push rod 442 can be a steel wire rope or a plastic hose.
- the hair follicle extraction device of this embodiment and the hair follicle extraction device of the third embodiment are basically the same, except that the advancement module 4 includes a guide cylinder 451, a piston 452, a piston rod 453, a conduction tube 454, and a rubber capsule.
- the outlet of the rubber bladder is connected to one end of the conduction tube 454, and the other end of the conduction tube 454 is communicated to the guide cylinder 451.
- a piston 452 is slidably disposed in the guide cylinder 451, and one end of the piston rod 453 is fixed to the piston 452. The other end is against the rotation module 3, and the handle piece 1 is provided with a reset compression spring 455 for backwardly abutting against the rotation module 3.
- the medium in the rubber bladder enters the conductive tube 454 through the conductive tube 454, so that the medium pushes the piston 452 to slide forward, thereby advancing the rotation module 3, and after releasing the rubber bladder, the rubber The bladder returns to the initial state. Due to the negative pressure, the piston 452 is reset back to the initial state. Under the action of the reset compression spring 455, the rotary module 3 is pushed back to reset.
- the pushing medium in the rubber bladder can also be a liquid medium.
- the protective sleeve 23 and the coupling 22 may each be provided with a drainage hole, and the drainage hole of the coupling 22 is communicated with the inner hole of the tubular drill 21.
- the coupling 22 and the protective sleeve 23 may each be provided with a mounting operation hole 24 for passing through the rotary tool 7.
- the tube-shaped drill 21 in contact with the skin and the protective sleeve 23 near the scalp area are preferably disposable.
- the protective sleeve 23, the coupling 22, and the coupling 22 are fixed on the coupling 22.
- the tubular drill 21 can be disassembled and replaced at one time, which is convenient and quick to operate; the insertion process of the rotating shaft and the insertion hole 221 and the rotation of the protective sleeve 23 are simultaneously implemented, which greatly reduces the operation difficulty and improves the assembly accuracy.
- the drain hole and the installation operation hole 24 can be provided separately, or the drain hole can be provided with the function of the installation operation hole 24 by designing the drain hole to meet the plugging requirements of the rotary tool 7.
- the mounting operation hole 24 is used as a drain hole.
- the above-mentioned limiting members in Embodiments 1 to 5 need to be explained as follows:
- the limiting members may adopt, but are not limited to, one or a combination of the following structures:
- the limiting member is a limiting rod 621 fixed in the internal channel of the handle member 1, and a rear end of the rotation module 3 is provided with a fixing for the limiting rod 621 to pass through.
- Sleeve 622 is a limiting rod 621 fixed in the internal channel of the handle member 1, and a rear end of the rotation module 3 is provided with a fixing for the limiting rod 621 to pass through.
- the limiting member is a slider 63 fixed on the outer wall of the rotation module 3, and an inner wall of the inner channel of the handle member 1 is provided with a handle member chute for sliding the slider 63.
- the position-limiting member is a guide rod 61 fixed in the handle member 1, and the guide rod 61 and the rotation module 3 slide and fit.
- the propulsion module 4 of the hair follicle extraction device can also be driven by a micro cylinder, a micro oil cylinder, and a drive motor.
- Eccentric wheel slider mechanism, cam mechanism, crank link mechanism and other commonly used linear propulsion mechanisms can be achieved by providing a reset compression spring on the handle member for backwardly abutting against the motor fixing sleeve of the rotation module.
- the rotation module 3 and the tubular drill 21 in the third embodiment to the seventh embodiment are described as follows:
- the connection between the rotation module 3 and the tubular drill 21 can also adopt the following structure.
- the rotation module includes a rotary motor, and the output shaft of the rotary motor is The tubular drill. Specifically, the following structure can be adopted:
- the rotary module 34 includes a rotary electric machine 31, the tubular drill 21 is fixed to the rotor of the rotary electric machine 31, and the rotary shafts of the tubular drill 21 and the rotary electric machine 31 are arranged in line.
- the rotary module 3 and tubular drill 21 are firmly fixed, compact in structure, and the manufacturing cost is reduced to a certain extent.
- the tubular drill replaces the existing motor shaft. Compared with the structure in which the tubular drill is fixed on the motor shaft, the tubular drill of this structure rotates when it is rotated. The coaxiality is greatly improved.
- the rear end of the tubular drill 21 protrudes from the rear end of the rotary electric machine 31. With this structure, it is convenient for the steel wire to pass through the tubular drill 21, so as to quickly squeeze out the blockage in the tubular drill 21.
- the rotating electric machine adopts a reduction gear motor (such gear motors have built-in reduction gears such as planetary reduction gears, such as hollow cup reduction gear motors), and tubular drills replace the output shafts of existing reduction gear motors.
- a reduction gear motor such gear motors have built-in reduction gears such as planetary reduction gears, such as hollow cup reduction gear motors
- tubular drills replace the output shafts of existing reduction gear motors.
- the rotation axis of the rotation module and the tubular drill can also adopt the following structure: a soft shaft is provided between the rotation axis of the rotation module and the rear end of the tubular drill, and the rotation shaft and the pipe are realized through the soft shaft 26
- the rotation module includes a rotating motor 31 and a motor fixing sleeve 32.
- the rotating motor 31 is fixed in the motor fixing sleeve 32.
- the motor fixing sleeve 32 is slidably installed in the handle 1 and the motor fixing sleeve 32. Promote through the push module.
- One end of the flexible shaft 26 is fixed to the motor shaft of the rotary electric machine 31, and a sliding block 25 is fixed to the other end of the flexible shaft.
- the sliding block 25 is slidably installed in the handle member 1, and the tubular drill 21 is inserted and fixed on the sliding block 25. Adopting this structure utilizes the propelling soft shaft 26 as a coupling to transmit torque, eliminating vibration caused by eccentricity of the motor.
- Flexible shaft can use stainless steel spring tube.
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Abstract
一种毛囊提取设备,其特征在于:包括手柄件(1),管型钻(21),管型钻(21)从手柄件(1)的前端伸出,且相对手柄件(1)直线滑动安装,旋转模块(3),旋转模块(3)驱动管型钻(21)转动,推进模块(4),推进模块(4)用于在管型钻(21)转动过程中向前推动管型钻(21),使其相对手柄件(1)直线滑动。毛囊提取设备可以实现旋切以及推进动作的同步,无需手工推入,可以准确地自动刺入皮肤组织;操作者的手部可以更加专注于握紧提取设备,可以降低毛囊提取过程中的毛囊横断率;提高手术效率和降低安全风险,降低对医生的技术要求。
Description
本发明涉及微创皮肤科手术器械领域,具体涉及一种毛囊提取设备。
毛囊移植,主要是应用外科技术,提取后枕部健康的毛囊组织,移植到脱发部位,起到重新生发的一种方式。目前市场上的主流毛囊提取设备产品使用过程中,存在以下不足:利用毛囊提取设备的管型钻切开头皮过程中,操作者需要手动将管型钻推入皮肤,推入过程中,由于推入方向和力度是由是操作者用手来控制的,由于手工操作的偏差以及头皮受压变形导致的偏差,管型钻将会切断毛囊;管型钻向皮肤深部切开过程,由于管型钻的旋转对管型钻内部的圆柱形移植物产生扭力,圆柱形移植物容易变形后被管型钻切断或被直接扭断。(3)手工操作的推进过程,切割速度如果滞后于推进速度,管形钻对皮肤产生的压力会增加,皮肤变形将导致毛囊的弯曲移位。
发明内容
本发明的目的在于克服现有技术中存在的上述不足,而提供一种毛囊提取设备。该毛囊提取设备可以实现降低手术难度,降低毛囊横断率,缩短手术时间的效果。
本发明解决上述问题所采用的技术方案是:
一种毛囊提取设备,其特征在于:包括
手柄件,
管型钻,管型钻从手柄件的前端伸出,且相对手柄件直线滑动安装,
旋转模块,旋转模块驱动管型钻转动,
推进模块,推进模块用于在管型钻转动过程中向前推动管型钻,使其相对手柄件直线滑动。
本发明与现有技术相比,具有以下优点和效果:
(1)通过设置用于驱动管型钻转动的旋转模块以及用于驱动旋转模块相对手柄件移动的推进模块,可以实现旋切以及推进动作的同步,无需手工推入,由于避免了手部的推入操作带来的抖动、偏移造成的定位偏差,可以准确地自动刺入皮肤组织;
(2)操作者的手部可以更加专注于握紧提取设备,在毛囊提取过程更准确控制切割(打孔)方向,消除对圆柱形移植物的扭力,可以降低毛囊提取过程中的毛囊横断率(毛囊横断后不能成活);
(3)提高手术效率和降低安全风险,降低对医生的技术要求,减少医生工作量,缩短手术时间,有效的降低手术过程中的操作者的疲劳强度、手术的失败率、降低手术操作对人工经验的依赖、避免手术过程中的人为因素导致的医疗事故。
进一步作为优选,推进模块包括推进弹簧,推进弹簧的两端分别固定旋转模块的旋转轴和管型钻。采用这种结构的毛囊提取设备具有以下的优点:(1)推进模块位于旋转模块前方,推进模块直接推动管型钻,工作过程中,旋转模块位置不变,管型钻的推进力不受旋转模块重力和惯性的影响。(2)由于旋转模块不随管型钻一起推进与回缩,避免了旋转模块滑动不顺畅,不灵敏的问题。(3)利用推进弹簧作为连轴器传导扭矩,消除了偏心导致的震动。(4)管型钻前端受到皮肤压力,推进弹簧被压缩,启动电机后,电机经由推进弹簧带动管型钻转动,管型钻在推进弹簧反弹力的推动下切开皮肤向前推进。由于推进弹簧的压缩量恒定,因此推进弹簧反弹形成的推力大致恒定,管型钻推进速度将由切开皮肤的速度决定,避免了切割与推进速度不同步导致毛囊横断。(5)在管型钻推进过程中,由于管型钻对皮肤推力大致恒定,操作者手持手柄,更容易控制手柄相对于皮肤位置固定。
进一步作为优选,手柄件的前端固定有定位针,定位针开设有导向孔,导向孔和管型钻的外壁采用间隙配合。采用这种结构,管型钻不仅滑动更加线性,且转动也不会出现偏心。
进一步作为优选,定位针的前端固定有支撑瓣,支撑瓣的内凹槽与导向孔的内壁相互衔接,且内凹槽的直径与导向孔的内径相同,支撑瓣的前端呈圆弧形且开倒角。该技术方案的支撑瓣的前端呈圆弧形且开倒角使得支撑瓣前端支撑在皮肤上时,支撑瓣的前端的支撑面积得到提高,接触皮肤后产生不会造成较大压强,且不容易相对皮肤滑动,手柄件利用支撑瓣的前端作为定位的支点,从而提高打孔操作的精度。
进一步作为优选,推进模块还包括用于和旋转模块的旋转轴进行插接配合的弹簧联轴器,弹簧联轴器的一端固定推进弹簧,弹簧联轴器相对手柄件转动连接且轴向固定。通过设置弹簧联轴器,实现旋转模块的旋转轴和推进弹簧的固定(即周向固定,传导扭矩),使得推进模块和旋转模块可以相互脱离,便于实现旋转模块的回收利用。
进一步作为优选,所述旋转模块可以采用电机或微型气动马达。
进一步作为优选,还包括内壳体,旋转模块固定于内壳体内,旋转模块的旋转轴从内壳体的前端伸出,内壳体插设且固定于手柄件内。通过旋转模块设置于相对手柄件独立的内壳体内,且将内壳体插设且固定于手柄件内,使得旋转模块可以不仅重复使用,降低了产品的使用成本,而且操作过程中旋转模块被隔离在在手柄件的内部,不会对手术无菌区域造成污染。
进一步作为优选,内壳体内还设置电池、远程控制模块,电池、远程控制模块以及旋转模块依次连接。从而便于通过现有的远程控制技术实现对电机转动的控制。
进一步作为优选,手柄件的后端开设有开孔,内壳体从所述开孔插入手柄件内,手柄件上拆卸式固定有用于封闭所述开孔的手柄后盖。
进一步作为优选,推进模块采用弹射式推进模块,旋转模块位于弹射式推进模块的弹射行程范围内,旋转模块滑动设置在手柄件上,旋转模块的旋转轴固定管型钻,弹射式推进模块安装在手柄件上。采用本结构,通过设置用于驱动管型钻转动的旋转模块以及用于驱动旋转模块相对手柄件移动的弹射式推进模块,旋转模块位于弹射式推进模块的弹射行程范围内,可以实现旋切以及推进动作的同步,无需手工推入,由于避免了手部的推入操作带来的抖动、偏移造成的定位偏差,可以准确地自动刺入皮肤组织;并且由于管型钻是被弹射式推进模块以弹出的方式推入皮肤的,因此推入速度极快。
进一步作为优选,初始状态下,弹射式推进模块和旋转模块两者的接触面之间间隔一定距离。
进一步作为优选,初始状态下,初始状态下,弹射式推进模块和旋转模块两者的接触面可以是直接接触的。但是由于这这种情况下,旋转模块是被弹射式推进模块直接推动加速的,并非撞击加速,因此旋转模块上的管型钻的钻入速度相对上述撞击加速的情况要慢一些,使用效果略差。
进一步作为优选,弹射式推进模块包括推进机构和弹射机构,推进机构安装于手柄件上,弹射机构包括固定套、滑动件、撞击件、复位压簧以及蓄力压簧,滑动件位于推进机构的推进行程范围内,固定套固定于手柄件上,滑动件相对固定套滑动连接,撞击件相对滑动件滑动连接,复位压簧的两端分别抵住滑动件和固定套,蓄力压簧的两端分别抵住滑动件和撞击件,固定套上设置限位槽,限位槽包括用于限制撞击件相对固定套直线移动的挡槽以及用于供撞击件相对固定套滑动的滑动槽,挡槽和滑动槽连通,所述撞击件上固定有用于卡入限位槽的滑动柱,所述滑动件上设置有用于将滑动柱从挡槽推入滑动槽的上斜面以及用于将滑动柱从滑动槽推入挡槽的下斜面。推进机构的作用主要是推动滑动件直线移动,推进机构可以采用市场上现有的直线推进结构,例如气缸、电动推杆等。
进一步作为优选,所述旋转模块包括钻电机和电机连接套,电机连接套滑动安装于手柄件上,手柄件内设置有用于向上顶起电机连接套的连接套压簧,钻电机嵌入电机连接套内,所述管型钻和钻电机的转子固定,连接套的上端固定有用于接受弹射式推进模块弹射的固定座。
进一步作为优选,撞击件插设于滑动件内,滑动件插设于固定套内。
进一步作为优选,滑动件上开设有侧孔,侧孔的上下端分别为上斜面和下斜面,所述滑动柱从侧孔穿出并插入限位槽。
进一步作为优选,管型钻固定在塑料座上,塑料座固定旋转模块的旋转轴。
进一步作为优选,所述推进机构采用微型气缸,所述微型气缸连接至供气系统,供气系统连接有控制供气系统给微型气缸通气的控制模块。
进一步作为优选,推进机构采用电动推杆,手柄件内置蓄电池,蓄电池连接电动推杆和旋转模块的钻电机,通过内置的蓄电池给电动推杆和旋转模块的钻电机供电,电动推杆和旋转模块的钻电机所连接的钻电机控制板上设置有无线通讯模块(例如蓝牙模块、wifi等),通过无线控制实现电动推杆和旋转模块的钻电机的工作。
进一步作为优选,连接套的侧壁开设有开槽,所述手柄件的侧面固定有副壳体。
进一步作为优选,所述推进机构连接至脚踏式控制模块。通过脚踩的方式实现对推进机构的控制,实现提取过程中的,手脚并用操作,提高了操作的方便程度。
进一步作为优选,手柄件包括上壳体和下壳体,下壳体可拆卸式固定至上壳体,旋转模块、弹射式推进模块分别安装于下壳体和上壳体上。
进一步作为优选,所述推进模块、旋转模块、管型钻从后至前依次设置,旋转模块的旋转轴固定管型钻,旋转模块通过推进模块推动实现相对手柄直线滑动。
进一步作为优选,手柄件的前端固定有保护套,管型钻的前端从保护套的前端开口伸出,前端开口孔径与管型钻的外径采用间隙配合。采用这种结构,保护套前端开口可以起到良好的导向作用,精度、同轴度都得到提高,同轴度误差可以控制在0.02mm以内。
进一步作为优选,所述管型钻的后端固定连轴器,所述连轴器具有供旋转模块的旋转轴插接的插接孔,当旋转模块的旋转轴插入插接孔时,连轴器和旋转模块的旋转轴保持径向固定。旋转轴和插接孔采用过盈配合或通过旋转轴插入内置有黏胶的插接孔,使得旋转轴和连轴器不轻易脱离。
进一步作为优选,旋转模块包括旋转电机、电机固定套,旋转电机插入电机固定套且和电机固定套保持固定,电机固定套滑动于手柄件内。电机的电机轴即为上述旋转模块的旋转轴。
进一步作为优选,还包括一相对手柄件固定的定位针,所述定位针的前端具有用于抵住皮肤的支撑瓣,定位针的凹壁包覆于管型钻的外侧。部分毛囊倾斜生长,与皮肤表面呈锐角,定位针的针尖轻抵皮肤表面,对旋转推进的管型钻起到导向和限制偏移的作用,并且管型钻的前端圆形切口与针尖切口共同作用于皮肤,形成的切口更加符合手术要求。如果没有定位针结构,当管型钻旋转推进时,管型钻前端和皮肤之间的摩擦力,配合管型钻的转动,会导致管型钻会相对提取区域偏移,从而造成进度大大降低,通过设置如上定位针结构,可以有效避免这一点。
进一步作为优选,定位针的截面呈圆弧形或圆形结构。定位针的轴线和针尖前端的两侧切刃磨削面形成的交汇线之间的夹角呈35°至60°夹角。
进一步作为优选,所述推进模块为内置于手柄件内的推进压缩弹簧,推进压缩弹簧的两端分别抵住旋转模块的后端以及手柄件。该推进模块的工作方式如下:保持管形钻纵轴与毛囊纵轴在一条直线情况下,管形钻刃口轻触头皮表面,此时管型钻受力并传递给旋转模块,最终推进压缩弹簧被压缩,此时,管型钻顶入皮肤所需克服的压力大于推进压缩弹簧的弹力,管形钻无法切开皮肤,旋转模块工作后,管型钻转动,管型钻开始旋转切削皮肤组织,皮肤切开后,阻力减小,旋转模块的重力以及弹簧弹力作用于钻头,推动管形钻向前切入皮肤。
进一步作为优选,所述推进模块包括推进电机、丝杆、螺母,旋转模块固定于滑动座上,滑动座上固定有螺母,丝杆和螺母配合,丝杆固定推进电机的电机轴。通过推进电机的转动带动丝杆转动,实现螺母以及滑动座的直线移动,从而实现管型钻的前后往复运动。丝杆、螺母之间还可以设置滚珠,以实现滚珠丝杆副。
进一步作为优选,所述推进模块采用推拉式电磁铁,推拉式电磁铁的基体和手柄件固定,推拉式电磁铁的推杆固定旋转模块。推拉式电磁铁可以实现旋转模块的快速往返运动,具有结构紧凑,行程小、动作快的特点。
进一步作为优选,所述推进模块包括导向管、弹性推杆,弹性推杆的一端抵住旋转模块,导向管套设在弹性推杆的一端,导向管的一段固定在手柄件上,手柄件上设置有用于向后抵住旋转模块的复位压缩弹簧,导向管的另一端固定至推进机构的固定部分,弹性推杆的另一端固定至推进机构的活动部分
进一步作为优选,所述推进机构采用基座、踏板,踏板的一端铰接于基座上,基座上设置有用于向上顶起踏板的踏板复位弹簧,导向管的另一端固定至基座,弹性推杆的另一端固定踏板。
进一步作为优选,所述推进模块包括导向筒、活塞、活塞杆、导通管和橡胶囊,橡胶囊的出口连接至导通管的一端,导通管的另一端连通至导向筒,导向筒内滑动设置有活塞,活塞杆的一端固定至活塞,活塞杆的另一端抵住旋转模块,手柄件上设置有用于向后抵住旋转模块的复位压簧。
进一步作为优选,管型钻的外壁设置有若干个用于识别管型钻伸出距离的刻度标识。刻度标识可以为色环标识,在管型钻上增加色环标识,操作者只需将色环对齐保护套的孔边,就可以精确得到管型钻伸出钻头保护套的长度,色环标识间距可以设置为1~2mm一个。
进一步作为优选,手柄件的后端安装用于相对手柄件进行前后位置调整的活动后盖,推进压缩弹簧的两端分别抵在活动后盖和旋转模块上。活动后盖可以相对手柄件前后位置调整,从而调节管型钻顶在皮肤上时(此时管型钻被推入手柄将内),推进压缩弹簧的弹力。活动后盖和手柄件可以采用螺纹连接、卡接等常规可进行距离调节的连接方式。
进一步作为优选,手柄件的前端通过螺纹配合固定有保护套,连轴器和保护套上均开设有用于穿过转动工装的安装操作孔。为了保证卫生以及安全性,接触皮肤的管型钻以及靠近头皮区域的保护套最好可以一次性使用,采用这种结构,保护套、连轴器以及固定于连轴器上的管型钻可以一次性拆卸更换,操作方便快捷;旋转轴、插接孔的插接过程和保护套的旋转过程同步实现,大大降低了操作难度,提高了装配精度。
进一步作为优选,保护套和连轴器均开设有排污孔,所述连轴器的排污孔和管型钻的内孔连通。采用这种结构,方便在管型钻堵塞情况下,通过钢丝依次伸入管型钻的内孔、连轴器的排污孔、保护套的排污孔,从而将管型钻内的堵塞物挤出。
进一步作为优选,旋转模块包括旋转电机,旋转电机的输出轴为所述管型钻。
进一步作为优选,管型钻的后端从旋转电机的后端伸出,即管型钻贯穿于旋转电机,并从后端伸出,管型钻代替现有的电机轴。
进一步作为优选,手柄件的内部通道中或旋转模块固定有限制旋转模块相对手柄件转动的限位件。限位件可以采用但不限于以下结构的其中一种形式或组合形式
(1)所述限位件为固定在手柄件的内部通道中的限位杆,旋转模块的后端开设有供限位杆穿过的固定套滑槽。
(2)所述限位件为固定在旋转模块外壁的滑块,手柄件的内部通道的内壁开设有用于供滑块滑动的手柄件滑槽。
(3)限位件为固定于手柄件内的导杆,导杆和旋转模块滑动配合。
进一步作为优选,所述推进模块、旋转模块、管型钻从后至前依次设置,旋转模块的旋转轴和管型钻的后端分别固定软轴的两端,旋转模块通过推进模块推动实现相对手柄直线滑动。
图1是本发明实施例一毛囊提取设备的结构示意图。
图2是本发明实施例一图1中A处的放大结构示意图。
图3是本发明实施例一毛囊提取设备的剖视结构示意图。
图4是本发明实施例一图2中B处的放大结构示意图。
图5是本发明实施例一图2中C处的放大结构示意图。
图6是本发明实施例二毛囊提取设备的结构示意图。
图7是本发明实施例二旋转模块以及弹射式推进模块的结构示意图。
图8是本发明实施例二弹射机构的结构示意图。
图9是本发明实施例二撞击件的安装结构示意图。
图10是本发明实施例二滑动件的结构示意图。
图11是本发明实施例二微型气缸的连接示意图。
图12本发明实施例二具有单连接套压簧的毛囊提取设备的剖视结构示意图。
图13本发明实施例二具有双连接套压簧的毛囊提取设备的剖视结构示意图。
图14是本发明实施例三毛囊提取设备内部结构示意图。
图15是本发明实施例三管型钻伸出保护套时毛囊提取设备的结构示意图。
图16是本发明实施例三管型钻缩入保护套时毛囊提取设备的结构示意图。
图17是本发明实施例三定位针的安装结构示意图。
图18是本发明实施例三定位针和管型钻配合的结构示意图。
图19是本发明实施例三刻度标识的读取原理示意图。
图20是本发明实施例三定位针的结构示意图。
图21是本发明实施例三毛囊提取设备实用状态一示意图。
图22是本发明实施例三毛囊提取设备实用状态二示意图。
图23是本发明实施例三毛囊提取设备实用状态三示意图。
图24是本发明实施例三图9中A处的放大结构示意图。
图25是本发明实施例四毛囊提取设备的结构示意图。
图26是本发明实施例四推进模块的安装结构示意图。
图27是本发明实施例四旋转模块的前移状态意图。
图28是本发明实施例四旋转模块后移状态示意图。
图29是本发明实施例四保护套的安装原理示意图。
图30是本发明实施例四触发器的结构示意图。
图31是本发明实施例五管型钻伸出保护套时推进模块的安装结构示意图。
图32是本发明实施例五管型钻缩入保护套时推进模块的安装结构示意图。
图33是本发明实施例六管型钻伸出保护套时毛囊提取设备结构示意图。
图34是本发明实施例六管型钻缩入保护套时毛囊提取设备结构示意图。
图35是本发明实施例六推进机构的结构示意图。
图36是本发明实施例七毛囊提取设备的结构示意图。
图37是本发明实施例七限位件为限位杆时限位件的安装示意图。
图38是本发明实施例七管型钻的安装结构示意图。
图39是本发明实施例八管型钻的安装结构示意图。
下面结合附图并通过实施例对本发明作进一步的详细说明,以下实施例是对本发明的解释而本发明并不局限于以下实施例。
实施例一
参见图1、图3所示,本实施例毛囊提取设备,包括手柄件1、管型钻21、推进模块4、旋转模块3,手柄件1的前端固定有定位针5,定位针5开设有导向孔,导向孔和管型钻21的外壁采用间隙配合。
定位针5的前端固定有支撑瓣51,支撑瓣51的内凹槽与导向孔的内壁相互衔接,且内凹槽的直径与导向孔的内径相同,支撑瓣51的前端呈圆弧形且开倒角。如图所示支撑瓣末端径向截面呈c形,支撑瓣末端内壁倒角,末端轴向截面呈楔形,接触皮肤后,支撑瓣末端呈c形半包绕打孔位置。手柄件利用支撑瓣的前端作为定位的支点,从而提高打孔操作的精度。
如图4所示,推进模块包括推进弹簧401以及弹簧联轴器402,如图5所示,管型钻21的后端固定有连接座403,推进弹簧401的两端分别固定弹簧联轴器402以及连接座403,如图4所示,弹簧联轴器402通过轴承406转动安装于手柄件1内。
如图4所示,弹簧联轴器402和旋转模块3的旋转轴之间的插接配合可以采用插接配合,实现轴向固定,例如花键联接的方式,即旋转模块3的旋转轴301固定花键轴404,弹簧联轴器402固定花键套405。
如图3所示,所述旋转模块3采用电机。旋转模块固定于内壳体302内,内壳体302内还设置电池303、远程控制模块,电池303、远程控制模块以及旋转模块3依次连接。通过现有的无线控制技术发送控制信号至远程控制模块,实现远程控制模块控制电机的转动,旋转模块3的旋转轴从内壳体的前端伸出。
如图3所示,手柄件1的后端开设有开孔15,内壳体302从所述开孔15插入手柄件1内,内壳体 302的前端抵住手柄件1内壁的挡块16,手柄件1上拆卸式固定有用于封闭所述开孔15的手柄后盖17,从而使得内壳体302固定于手柄件1内。本实施例中手柄后盖17通过螺纹拧在手柄件1上。从而方便卸下手柄后盖17,取出内壳体302。
手柄件1及其内部的管型钻21、推进模块是经低温消毒的独立包装的一次性使用的耗材,内壳体302及其所封装的旋转驱动模块、电池、远程控制模块锁构成的驱动组件可以重复使用。内壳体302从所述开孔15插入手柄件后,驱动组件相对手柄件周向固定,旋紧手柄后盖,使驱动组件与外界的无菌环境隔离。驱动组件相对手柄件周向固定结构可以通过的内壳体302和手柄件1的常规的插接实现。
毛囊提取设备的工作方式如下:
(1)下压手柄件1件,管型钻21向内缩入,推进弹簧401压缩,直至支撑瓣51的前端轻抵皮肤表面;
(2)旋转模块3带动弹簧联轴器402转动,弹簧联轴器402经由推进弹簧401带动管型钻21转动;
(3)由于管型钻21转动,并在推进弹簧401的弹力作用下,管型钻21在皮肤表面切开一个圆形切口,
(4)管型钻21在推进弹簧401的弹力作用下,直到距皮肤表面3mm到5mm的深度,毛囊附着于皮肤的结构被切断,随后撤离毛囊提取设备,
(5)用医用镊子夹取出毛囊,提取完成。
上述过程中,毛囊提取设备可以实现自动同步的旋切以及推进动作,无需手工将管型钻21推入皮肤,由于避免了手部的推入操作带来的抖动、偏移造成的定位偏差,可以较快准确的方式自动刺入皮肤组织;操作者的手部可以更加专注于握紧提取设备,在毛囊提取过程更准确控制切割(打孔)方向,消除对圆柱形移植物的扭力,可以降低毛囊提取过程中的毛囊横断率(毛囊横断后不能成活)。毛囊提取设备提高手术效率和降低安全风险,降低对医生的技术要求,减少医生工作量,缩短手术时间,有效的降低手术过程中的操作者的疲劳强度、手术的失败率、降低手术操作对人工经验的依赖、避免手术过程中的人为因素导致的医疗事故。
本毛囊提取设备具有以下优点和效果:
(1)推进模块位于旋转模块前方,推进模块直接推动管型钻,工作过程中,旋转模块位置不变,管型钻的推进力不受旋转模块重力和惯性的影响。
(2)由于旋转模块不随管型钻一起推进与回缩,避免了旋转模块滑动不顺畅,不灵敏的问题。
(3)利用推进弹簧作为连轴器传导扭矩,消除了偏心导致的震动。
(4)管型钻前端受到皮肤压力,推进弹簧被压缩,启动电机后,电机经由推进弹簧带动管型钻转动,管型钻在推进弹簧反弹力的推动下切开皮肤向前推进。由于推进弹簧的压缩量恒定,因此推进弹簧反弹形成的推力大致恒定,管型钻推进速度将由切开皮肤的速度决定,避免了切割与推进速度不同步导致毛囊横断。
(5)在管型钻推进过程中,由于管型钻对皮肤推力大致恒定,操作者手持手柄,更容易控制手柄相对于皮肤位置固定。
实施例二
参见图19-图13,本实施例毛囊提取设备,包括手柄件1、管型钻21、旋转模块3以及推进模块4,推进模块4采用弹射式推进模块,所述手柄件1的侧面固定有副壳体14。手柄件1包括上壳体12和下壳体13,下壳体13的下端通过螺纹配合固定至上壳体12,旋转模块3、弹射式推进模块分别安装于下壳体13和上壳体12上。
由于管型钻21接触人体皮肤,出于医疗卫生角度考虑,下壳体13可以直接从上壳体12上拆卸,下壳体13以及内置于下壳体13内的旋转模块3、固定在旋转模块3上的管型钻21,作为一次性医疗用品丢弃,从而提高使用安全性。
如图7所示,所述旋转模块3包括钻电机301和电机固定套302,连接套的侧壁开设有开槽33,电机固定套302滑动安装于下壳体13上,下壳体13内设置有用于向上顶起电机固定套302的连接套压簧34,连接套压簧34用于在旋转模块3受到撞击向下移动后,向上顶起电机固定套302,实现旋转模块3的复位。钻电机301嵌入电机固定套302内,连接套的上端固定有用于接受弹射式推进模块弹射的固定座35。管型钻21固定在塑料座上,塑料座固定钻电机301的转轴或者直接固定钻电机301的转子。下壳体13内固定有至少两根导向杆36,所述导向杆36插设在电机固定套302上。连接套压簧34可以采用套设在电机固定套302(如图12所示)上或者采用套设在导向杆36上(如图13所示)。
如图8-图10所示,弹射式推进模块包括推进机构461和弹射机构,推进机构461安装于上壳体12上,弹射机构包括固定套462、滑动件463、撞击件464、复位弹簧465以及蓄力压簧466,滑动件463位于推进机构461的推进行程范围内,固定套462固定于下壳体13上,滑动件463相对固定套462滑动连接,撞击件464相对滑动件463滑动连接,复位弹簧465的两端分别抵住滑动件463和固定套462,蓄力压簧466的两端分别抵住滑动件463和撞击件464,固定套462上设置限位槽,限位槽包括用于限制撞击件464相对固定套462直线移动的挡槽467以及用于供撞击件464相对固定套462滑动的滑动槽468,挡槽467和滑动槽468连通,所述撞击件464上固定有用于卡入限位槽的滑动柱469,所述滑动件463上设置有用于将滑动柱469从挡槽467推入滑动槽468的上斜面4610以及用于将滑动柱469从滑动槽468推入挡槽467的下斜面4611。撞击件464插设于滑动件463内,滑动件463插设于固定套462内。 滑动件463上开设有侧孔4612,侧孔4612的上下端分别为上斜面4610和下斜面4611,所述滑动柱469从侧孔4612穿出并插入限位槽。所述推进机构461采用微型气缸,所述微型气缸连接至供气系统471,供气系统471连接有控制供气系统471给微型气缸通气的控制模块。控制模块采用脚踏阀472,通过脚踩实现对微型气缸通气,微型气缸可以采用市场上针型自动回位气缸,针型自动回位气缸可以直接单管接入,并利用气缸内部的弹簧实现自动复位。微型气缸的活动杆直接抵或固定在滑动件463上。
初始状态下,撞击件464的下端面和固定座35的上端面之间间隔一定距离(图12、图13的标识L所示)。撞击件464的下端面和固定座35的上端面之间的空间的主要有以下两个作用:(1)为撞击件464向下的加速提供空间:撞击件464被弹出后,经过撞击件464的下端面和固定座35的上端面之间的空间加速后,才撞击固定座35,撞击件464行程随机结束,实现旋转模块3整体的弹出。(2)由于撞击件464是撞击固定座35,并非推动固定座35运动,因此撞击件464撞击固定座35之后,撞击随即可停止向下的行程,旋转模块3整体被弹出,随后在连接套压簧34的作用下,旋转模块3整体可以立刻向上复位,即实现管型钻21瞬间插入皮肤随即快速退回的动作。
如图13所示,固定座35由硬质主体部分351(可采用金属或塑料材质)以及固定于硬质主体部分顶部的橡胶块352构成。由于撞击快冲力大,通过橡胶块缓冲,从而延长产品使用寿命。
本发明毛囊提取设备的的使用过程如下:
步骤一,手持手柄件1,旋转模块3的驱动下管型钻21转动,管型钻21接触皮肤,在皮肤表面切开一个圆形切口,
步骤二,弹射式推进模块的撞击下,管型钻21快速向皮肤深部切入,直到距皮肤表面3mm到5mm的深度,毛囊附着于皮肤的结构被切断,撤离毛囊提取设备,
步骤三,用医用镊子夹取出毛囊,提取完成。
上述步骤2中,弹射式推进模块的工作原理如下:
如图6所示,脚踩脚踏阀472,脚踏阀472的阀打开,供气系统471的高压气体经由脚踏阀472进入微型气缸供气,使得微型气缸的气缸杆伸出,推动滑动件463向下相对固定套462滑动,于此同时由于滑动柱469位于挡槽467内,因此撞击件464无法相对固定套462滑动,蓄力压簧466被压缩,滑动件463向下滑动过程中,通过上斜面4610将滑动柱469从挡槽467推入滑动槽468,滑动柱469被推入滑动槽468时,蓄力压簧466向下弹射撞击件464,撞击件464加速后撞击旋转模块3上的固定座35,旋转模块3整体快速向下弹开,使得管型钻21快速向皮肤深部切入,随后在连接套压簧34的作用下,旋转模块3整体可以立刻向上复位,即实现管型钻21瞬间插入皮肤随即快速退回的动作。
弹射式推进模块的复位过程如下:微型气缸的气缸杆缩入,复位弹簧465的作用下固定套462被向上顶起至初始位置,在此过程中,下斜面4611带动滑动柱469和撞击件464向上移动,当活动滑动柱469至挡槽467位置时,下斜面4611继续向上移动一定距离,由于滑动柱469无法上升,滑动柱469沿下斜面4611向挡槽467偏转,滑入挡槽467内,完成撞击件464的复位。
实施例三
参见图14-图23,本实施例毛囊提取设备毛囊提取设备,包括手柄件1、管型钻21、用于驱动管型钻21转动的旋转模块3以及用于驱动旋转模块3相对手柄件1移动的推进模块4,旋转模块3滑动设置在手柄件1上,旋转模块3的旋转轴固定管型钻21,推进模块4安装在手柄件1上。
手柄件1的前端固定有保护套23,管型钻21的前端从保护套23的前端开口231伸出,前端开口231孔径与管型钻21的外径采用间隙配合。
所述管型钻21的后端固定连轴器22,所述连轴器22具有供旋转模块3的旋转轴插接的插接孔221,当旋转模块3的旋转轴插入插接孔221时,连轴器22和旋转模块3的旋转轴保持径向固定。旋转轴和插接孔221采用过盈配合或通过旋转轴插入内置有黏胶的插接孔221,使得旋转轴和连轴器22不轻易脱离。
旋转模块3包括旋转电机31、电机固定套32,旋转电机31插入电机固定套32且和电机固定套32保持固定,电机固定套32滑动于手柄件1内,电机固定套32通过限位件相对手柄件1轴向固定。电机的电机轴即为上述旋转模块3的旋转轴。
保护套23上固定定位针5,所述定位针5的前端具有用于抵住皮肤的支撑瓣51,定位针5的凹壁包覆于管型钻21的外侧。定位针5的截面呈圆弧形或圆形结构。定位针5的轴线和针尖前端的两侧切刃磨削面形成的交汇线之间的夹角α呈35°至60°。
管型钻21的外壁设置有若干个用于识别管型钻21伸出距离的刻度标识211。刻度标识211可以为色环标识,在管型钻21上增加色环标识,操作者只需将色环对齐保护套23的孔边,就可以精确得到管型钻21伸出钻头保护套23的长度,色环标识间距可以设置为1~2mm一个。
所述推进模块4为内置于手柄件1内的推进压缩弹簧43,推进压缩弹簧43的两端分别抵住旋转模块3的后端以及手柄件1。
手柄件1的后端安装用于相对手柄件1进行前后位置调整的活动后盖,推进压缩弹簧43的两端分别抵在活动后盖和旋转模块3上。活动后盖可以相对手柄件1前后位置调整,从而调节管型钻21顶在皮肤上时(此时管型钻21被推入手柄将内),推进压缩弹簧43的弹力。本实施例中,手柄件1的后端设置有一段外螺纹,活动后盖具有内螺纹,活动后盖和手柄件1进行螺纹连接,从而实现活动后盖相对手柄 件1前后位置调整。
本实施例毛囊提取设备的使用过程如下:
第一步:在钻头不旋转的情况下,钻头接触头皮,利用头皮对钻头的推力,克服旋转模块自重与压缩弹簧43的弹力,使钻头回缩(如图21所示),钻头伸出的长度L为2~4mm。。
第二步:确认钻头与毛囊角度一致后,启动钻头旋转,钻头切开头皮,利用旋转模块自重与推进压缩弹簧43的推力,钻头进入皮肤(如图22所示)。此时钻头伸出的长度L1为6~8mm。
第三步:用镊子等工具将毛囊提取转移(如图23所示)。
上述过程中,保持管形钻21纵轴与毛囊纵轴在一条直线情况下,管形钻21刃口轻触头皮表面,此时管型钻21受力并传递给旋转模块3,最终推进压缩弹簧43被压缩,此时,管型钻21顶入皮肤所需克服的压力大于推进压缩弹簧43的弹力,管形钻21无法切开皮肤,旋转模块3工作后,管型钻21转动,管型钻21开始旋转切削皮肤组织,皮肤切开后,阻力减小,旋转模块3的重力以及推进压缩弹簧43的弹力作用于推动管形21,推动管形钻21向前切入皮肤。
本实施例毛囊提取设备的益处:(1)、钻头进入皮肤的过程中,操作的手处于静止状态,避免了过程中手工操作产生的钻头偏移或变等误差,变向等操作误差;(2)、钻头进入皮肤的过程中,弹簧推力大致恒定,钻头切开头皮与推进过程同步,避免了头皮受到钻头压迫而变形,导致毛囊弯曲后被切断。
实施例四
参见图25-图30,本实施例毛囊提取设备和实施例三基本相同,区别在于:本实施例所述推进模块4包括推进电机441、丝杆412、螺母,旋转模块3的电机固定套32固定于滑动座413上,滑动座413上固定有螺母,丝杆412和螺母配合,丝杆412固定推进电机441的电机轴。通过推进电机441的转动带动丝杆412转动,实现螺母以及滑动座413的直线移动,从而实现管型钻21的前后往复运动。丝杆412、螺母之间还可以设置滚珠,以实现滚珠丝杆副。
毛囊提取设备的工作方式如下:
定位针5的针尖轻抵皮肤表面;
(1)旋转模块3的驱动下管型钻21转动,并在推进模块4的推动下,管型钻21接触皮肤,在皮肤表面切开一个圆形切口,
(2)管型钻21继续向皮肤深部切开,直到距皮肤表面3mm到5mm的深度,毛囊附着于皮肤的结构被切断,撤离毛囊提取设备,
(3)用医用镊子夹取出毛囊,提取完成。
上述过程中,本发明毛囊提取设备可以实现自动同步的旋切以及推进动作,无需手工推入,由于避免了手部的推入操作带来的抖动、偏移造成的定位偏差,可以较快准确的方式自动刺入皮肤组织;操作者的手部可以更加专注于握紧提取设备,在毛囊提取过程更准确控制切割(打孔)方向,消除对圆柱形移植物的扭力,可以降低毛囊提取过程中的毛囊横断率(毛囊横断后不能成活)。本发明毛囊提取设备提高手术效率和降低安全风险,降低对医生的技术要求,减少医生工作量,缩短手术时间,有效的降低手术过程中的操作者的疲劳强度、手术的失败率、降低手术操作对人工经验的依赖、避免手术过程中的人为因素导致的医疗事故。
手柄件1的后段设置有用于容纳电池件8的电池容纳空间11,通过手柄件1的内置电池件8实现毛囊提取设备的供电,避免了外接线路供电,提高了操作上的灵活性。
旋转模块3、推进模块4的电机动作控制可以通过电机控制模块实现控制,电机控制模块可以经由无线通信方式(蓝牙、红外、WiFi等)或有线通信方式连接至触发器,触发器91的触发方式以脚踏触发的方式为佳(方便操作者,手脚协同操作作业)。如何通过通过动作触发器,并通过无线或有线方式控制电机动作为本行业的公知常识,因此在此发明内不再赘述。推进模块4对旋转模块3的前后行程控制,可以通过在手柄件内设置用于感知旋转模块3位置的限位开关92实现,当手柄件顶住限位开关后,触发推进模块4停止前推。
实施例五
参见图31-图32,本实施例毛囊提取设备和实施例三的毛囊提取设备基本相同,其区别在于:所述推进模块4采用推拉式电磁铁42,推拉式电磁铁42的基体和手柄件1固定,推拉式电磁铁42的推杆固定旋转模块3的电机固定套32。推拉式电磁铁42可以实现旋转模块3的快速往返运动,具有结构紧凑,行程小、动作快的特点。
实施例六
参见图33-图35,本实施例毛囊提取设备和实施例三的毛囊提取设备基本相同,其区别在于:所述推进模块4包括导向管441、弹性推杆442,弹性推杆442的一端抵住旋转模块3,导向管441套设在弹性推杆442的一端,导向管441的一段固定在手柄件1上,手柄件1上设置有用于向后抵住旋转模块3的复位压缩弹簧445,导向管441的另一端固定至推进机构的固定部分,弹性推杆442的另一端固定至推进机构的活动部分。所述推进机构采用基座443、踏板444,踏板444的一端铰接于基座443上,基座443上设置有用于向上顶起踏板444的踏板444复位弹簧,导向管441的另一端固定至基座443,弹性推杆442的另一端固定踏板444。弹性推杆442可以采用钢丝绳或者塑料软管,采用这种结构,通过 脚踩踏板444,踏板444下压弹性推杆442,位于导向管441的一端区域弹性推杆442被压入,位于导向管441的另一端区域弹性推杆442相应伸出,弹性推杆442克服复位压缩弹簧445的弹力,向前推动旋转模块3。
实施例七
参见图36,本实施例毛囊提取设备和实施例三的毛囊提取设备基本相同,其区别在于:所述推进模块4包括导向筒451、活塞452、活塞杆453、导通管454和橡胶囊,橡胶囊的出口连接至导通管454的一端,导通管454的另一端连通至导向筒451,导向筒451内滑动设置有活塞452,活塞杆453的一端固定至活塞452,活塞杆453的另一端抵住旋转模块3,手柄件1上设置有用于向后抵住旋转模块3的复位压簧455。采用这种结构,可以通过脚踩橡胶囊,橡胶囊内的介质经由导通管454进入导通管454,使得介质推动活塞452向前滑动,从而推进旋转模块3,松开橡胶囊后,橡胶囊恢复至初始状态,由于负压,活塞452向后复位至初始状态,在复位压簧455的作用下,推进旋转模块3向后复位。橡胶囊内的推动介质除了采用气体介质外,还可以采用液体介质。
对上述实施例1至实施例5中的保护套和连轴器说明如下:
如图29所示,保护套23和连轴器22可以均开设有排污孔,所述连轴器22的排污孔和管型钻21的内孔连通。采用这种结构,方便在管型钻21堵塞情况下,通过钢丝依次伸入管型钻21的内孔、连轴器22的排污孔、保护套23的排污孔,从而将管型钻21内的堵塞物挤出。连轴器22和保护套23上可以均开设有用于穿过转动工装7的安装操作孔24。为了保证卫生以及安全性,接触皮肤的管型钻21以及靠近头皮区域的保护套23最好可以一次性使用,采用这种结构,保护套23、连轴器22以及固定于连轴器22上的管型钻21可以一次性拆卸更换,操作方便快捷;旋转轴、插接孔221的插接过程和保护套23的旋转过程同步实现,大大降低了操作难度,提高了装配精度。
排污孔和安装操作孔24可以分别设置,或者通过将排污孔设计符合转动工装7的插接需求,使得排污孔具备安装操作孔24的功能。图29中,安装操作孔24作为排污孔使用。
对上述实施例1至实施例5中的限位件需要说明如下:限位件可以采用但不限于以下结构的其中一种形式或组合形式:
(1)如图14和图27所示,所述限位件为固定在手柄件1的内部通道中的限位杆621,旋转模块3的后端开设有供限位杆621穿过的固定套滑槽622。
(2)如图31所示,所述限位件为固定在旋转模块3外壁的滑块63,手柄件1的内部通道的内壁开设有用于供滑块63滑动的手柄件滑槽。
(3)如图27所示,限位件为固定于手柄件1内的导杆61,导杆61和旋转模块3滑动配合。
对上述实施例三至实施例七中的推进模块需要说明如下:毛囊提取设备的推进模块4除了可以采用上述实施例毛囊提取设备的推进模块外,还可采用微型气缸、微型油缸、驱动电机驱动偏心轮滑块机构、凸轮机构、曲柄连杆机构等常用的直线推进机构。当往直线推进机构本身无法具备复位功能时,例如凸轮机构,可以通过在手柄件上设置有用于向后抵住旋转模块的电机固定套的复位压缩弹簧,从而实现复位功能。
对上述实施例三至实施例七中的旋转模块3和管型钻21说明如下:旋转模块3和管型钻21的连接还可以采用如下结构,旋转模块包括旋转电机,旋转电机的输出轴为所述管型钻。具体来说,可以采用如下结构:
(1)如图38所示,旋转模块34包括旋转电机31,管型钻21与旋转电机31的转子固定,管型钻21和旋转电机31的转轴共线设置,采用这种结构,旋转模块3和管型钻21固定牢固,结构紧凑,制造成本也一定程度得到降低,管型钻代替现有的电机转轴,相对于管型钻固定在电机轴的结构方式,本结构管型钻转动时,同轴度大大提高。管型钻21的后端从旋转电机31的后端伸出,采用这种结构,便于通过钢丝穿过管型钻21,从而快速将管型钻21内的堵塞物挤出。
(2)旋转电机采用减速电机(该类减速电机内置有行星减速等减速结构,例如空心杯减速电机),管型钻代替现有的减速电机的输出轴。
实施例八
旋转模块的旋转轴和管型钻除了采用上述实施例的实现,还可以采用以下结构:旋转模块的旋转轴和管型钻的后端之间设置软轴,通过软轴26实现旋转轴和管型钻21的传动连接,参见图39,旋转模块包括旋转电机31和电机固定套32,旋转电机31固定于电机固定套32内,电机固定套32滑动安装于手柄件1内,电机固定套32通过推进模块实现推动。旋转电机31的电机轴固定软轴26的一端,软轴的另一端固定滑动块25,滑动块25滑动安装于手柄件1内,管型钻21插设固定于滑动块25上。采用这种结构利用推进软轴26作为连轴器传导扭矩,消除了电机偏心导致的震动。软轴可以采用不锈钢弹簧管。
本说明书中所描述的以上内容仅仅是对本发明所作的举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,只要不偏离本发明说明书的内容或者超越本权利要求书所定义的范围,均应属于本发明的保护范围。
Claims (30)
- 一种毛囊提取设备,其特征在于:包括手柄件,管型钻,管型钻从手柄件的前端伸出,且相对手柄件直线滑动安装,旋转模块,旋转模块驱动管型钻转动,推进模块,推进模块用于在管型钻转动过程中向前推动管型钻,使其相对手柄件直线滑动。
- 根据权利要求1所述的毛囊提取设备,其特征在于:所述旋转模块、推进模块、管型钻从后至前依次设置,且所述推进模块包括推进弹簧,推进弹簧的两端分别连接旋转模块的旋转轴和管型钻,使得旋转模块通过推进弹簧带动管型钻转动。
- 根据权利要求2所述的毛囊提取设备,其特征在于:手柄件的前端固定有定位针,定位针开设有导向孔,导向孔和管型钻的外壁采用间隙配合,定位针的前端固定有支撑瓣。
- 根据权利要求2所述的毛囊提取设备,其特征在于:推进模块还包括用于和旋转模块的旋转轴进行插接配合的弹簧联轴器,弹簧联轴器的一端固定推进弹簧,弹簧联轴器相对手柄件转动连接且轴向固定。
- 根据权利要求2所述的毛囊提取设备,其特征在于:还包括内壳体,旋转模块固定于内壳体内,旋转模块的旋转轴从内壳体的前端伸出,内壳体插设且固定于手柄件内。
- 根据权利要求7所述的毛囊提取设备,其特征在于:内壳体内还设置电池、远程控制模块,电池、远程控制模块以及旋转模块依次连接。
- 根据权利要求1所述的毛囊提取设备,其特征在于:所述推进模块、旋转模块、管型钻从后至前依次设置,所述推进模块采用弹射式推进模块,旋转模块位于弹射式推进模块的弹射行程范围内,旋转模块滑动设置在手柄件上,旋转模块的旋转轴固定管型钻,弹射式推进模块安装在手柄件上。
- 根据权利要求7所述的毛囊提取设备,其特征在于:初始状态下,弹射式推进模块和旋转模块两者的接触面之间间隔一定距离。
- 根据权利要求7所述的毛囊提取设备,其特征在于:弹射式推进模块包括推进机构和弹射机构,推进机构安装于手柄件上,弹射机构包括固定套、滑动件、撞击件、复位压簧以及蓄力压簧,滑动件位于推进机构的推进行程范围内,固定套固定于手柄件上,滑动件相对固定套滑动连接,撞击件相对滑动件滑动连接,复位压簧的两端分别抵住滑动件和固定套,蓄力压簧的两端分别抵住滑动件和撞击件,固定套上设置限位槽,限位槽包括用于限制撞击件相对固定套直线移动的挡槽以及用于供撞击件相对固定套滑动的滑动槽,挡槽和滑动槽连通,所述撞击件上固定有用于卡入限位槽的滑动柱,所述滑动件上设置有用于将滑动柱从挡槽推入滑动槽的上斜面以及用于将滑动柱从滑动槽推入挡槽的下斜面。
- 根据权利要求7所述的毛囊提取设备,其特征在于:所述旋转模块包括钻电机和电机连接套,电机连接套滑动安装于手柄件上,手柄件内设置有用于向上顶起电机连接套的连接套压簧,钻电机嵌入电机连接套内,所述管型钻和钻电机的转子固定,连接套的上端固定有用于接受弹射式推进模块弹射的固定座。
- 根据权利要求7所述的毛囊提取设备,其特征在于:撞击件插设于滑动件内,滑动件插设于固定套内。
- 根据权利要求7所述的毛囊提取设备,其特征在于:滑动件上开设有侧孔,侧孔的上下端分别为上斜面和下斜面,所述滑动柱从侧孔穿出并插入限位槽。
- 根据权利要求7所述的毛囊提取设备,其特征在于:所述推进机构采用微型气缸,所述微型气缸连接至供气系统,供气系统连接有控制供气系统给微型气缸通气的控制模块。
- 根据权利要求7所述的毛囊提取设备,其特征在于:所述推进机构连接至脚踏式控制模块。
- 根据权利要求7所述的毛囊提取设备,其特征在于:手柄件包括上壳体和下壳体,下壳体可拆卸式固定至上壳体,旋转模块、弹射式推进模块分别安装于下壳体和上壳体上。
- 根据权利要求1所述的毛囊提取设备,其特征在于:所述推进模块、旋转模块、管型钻从后至前依次设置,旋转模块的旋转轴固定管型钻,旋转模块通过推进模块推动实现相对手柄直线滑动。
- 根据权利要求16所述的毛囊提取设备,其特征在于:所述管型钻的后端固定连轴器,所述连轴器具有供旋转模块的旋转轴插接的插接孔,当旋转模块的旋转轴插入插接孔时,连轴器和旋转模块的旋转轴保持径向固定。
- 根据权利要求16所述的毛囊提取设备,其特征在于:旋转模块包括旋转电机、电机固定套,旋转电机插入电机固定套且和电机固定套保持固定,电机固定套滑动于手柄件内。
- 根据权利要求16所述的毛囊提取设备,其特征在于:所述推进模块为内置于手柄件内的推进压缩弹簧,推进压缩弹簧的两端分别抵住旋转模块的后端以及手柄件。
- 根据权利要求16所述的毛囊提取设备,其特征在于:所述推进模块包括推进电机、丝杆、螺母,旋转模块固定于滑动座上,滑动座上固定有螺母,丝杆和螺母配合,丝杆固定推进电机的电机轴。
- 根据权利要求16所述的毛囊提取设备,其特征在于:所述推进模块采用推拉式电磁铁,推拉式电磁铁的基体和手柄件固定,推拉式电磁铁的推杆固定旋转模块。
- 根据权利要求16所述的毛囊提取设备,其特征在于:所述推进模块包括导向管、弹性推杆,弹性推杆的一端抵住旋转模块,导向管套设在弹性推杆的一端,导向管的一段固定在手柄件上,手柄件上设置 有用于向后抵住旋转模块的复位压缩弹簧,导向管的另一端固定至推进机构的固定部分,弹性推杆的另一端固定至推进机构的活动部分。
- 根据权利要求16所述的毛囊提取设备,其特征在于:所述推进模块包括导向筒、活塞、活塞杆、导通管和橡胶囊,橡胶囊的出口连接至导通管的一端,导通管的另一端连通至导向筒,导向筒内滑动设置有活塞,活塞杆的一端固定至活塞,活塞杆的另一端抵住旋转模块,手柄件上设置有用于向后抵住旋转模块的复位压簧。
- 根据权利要求19所述的毛囊提取设备,其特征在于:手柄件的后端安装用于相对手柄件进行前后位置调整的活动后盖,推进压缩弹簧的两端分别抵在活动后盖和旋转模块上。
- 根据权利要求18所述的毛囊提取设备,其特征在于:手柄件的前端通过螺纹配合固定有保护套,连轴器和保护套上均开设有用于穿过转动工装的安装操作孔。
- 根据权利要求17所述的毛囊提取设备,其特征在于:保护套和连轴器均开设有排污孔,所述连轴器的排污孔和管型钻的内孔连通。
- 根据权利要求16所述的毛囊提取设备,其特征在于:手柄件的内部通道中或旋转模块固定有限制旋转模块相对手柄件转动的限位件,所述限位件为固定在手柄件的内部通道中的限位杆,旋转模块的后端开设有供限位杆穿过的固定套滑槽。
- 根据权利要求16所述的毛囊提取设备,其特征在于:旋转模块包括旋转电机,旋转电机的输出轴为所述管型钻。
- 根据权利要求28所述的毛囊提取设备,其特征在于:管型钻的后端从旋转电机的后端伸出。
- 根据权利要求1所述的毛囊提取设备,其特征在于:所述推进模块、旋转模块、管型钻从后至前依次设置,旋转模块的旋转轴和管型钻的后端分别固定软轴的两端,旋转模块通过推进模块推动实现相对手柄直线滑动。
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CN201811132872.8A CN109171834B (zh) | 2018-09-27 | 2018-09-27 | 一种毛囊提取设备 |
CN201811132872.8 | 2018-09-27 | ||
CN201822013460.4U CN209695258U (zh) | 2018-12-03 | 2018-12-03 | 毛囊提取设备 |
CN201822013460.4 | 2018-12-03 | ||
CN201920640867.1 | 2019-05-06 | ||
CN201920640867.1U CN210112743U (zh) | 2019-05-06 | 2019-05-06 | 毛囊提取设备 |
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