Skin treatment system

Abstract

A skin treatment system disclosed by the present invention comprises a control host and a handheld device, the handheld device comprises a shell and a needle head part and a driving part which are installed on the shell, the needle head part comprises a hollow needle head, and the driving part is connected with the needle head part and drives the needle head part to move until the needle head is inserted into or withdrawn from human skin tissue. The control host comprises a negative pressure device, and the negative pressure device provides negative pressure for the needle head so that the human skin tissue can be drawn out through the needle head inserted into the human skin tissue. The invention has the advantages of small trauma, no thermal effect and thermal injury, obvious treatment effect and short treatment cycle.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a skin treatment system. Background Art

[0002] At present, some energy-based skin treatment technologies, such as laser, radio frequency (RF) or ultrasound, all use thermal technology to promote the anabolism and tissue repair of skin tissue to achieve treatment. Because these technologies are based on thermal effects, they will damage heat-sensitive skin tissue areas, causing erythema, pigmentation, skin swelling and skin inflammation, causing irreversible thermal damage to skin tissue, so it is impossible to complete the treatment of skin tissue in all heat-sensitive areas and surrounding tissues. Summary of the invention

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a skin treatment system, which extracts excess tissue and blood through negative pressure. Compared with invasive (such as plastic surgery) or non-invasive (such as laser, radio frequency (RF) or ultrasound) skin treatment technologies, this solution has low risk and predictable results, and has the advantages of less trauma, no thermal effect and thermal damage, obvious treatment effect and short treatment cycle. It is a non-thermal excision technology, which can achieve skin tightening, skin lifting and reduce skin sagging. Compared with thermal effect methods, it has smaller side effects. After treatment, the skin tissue can quickly close the holes, thereby minimizing bleeding and scar formation in the holes. The skin tissue heals quickly and there are basically no adverse reactions.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A skin treatment system includes a control host and a handheld device. The handheld device includes a shell and a needle head and a driving part installed on the shell. The needle head includes a hollow needle. The driving part is connected to and drives the needle head to move until the needle is inserted into or withdrawn from human skin tissue. The control host includes a negative pressure device. The negative pressure device provides negative pressure for the needle to extract human skin tissue through the needle inserted into the human skin tissue.

[0006] As a further improvement of the above technical solution:

[0007] The handheld device also includes a base, which is detachably mounted on the shell. When the handheld device is working, one end of the base contacts the skin surface to be treated, and the drive unit drives the needle to penetrate the skin through the base. A channel is provided on the base, and the channel is connected to a negative pressure device, through which excess tissue and blood on the skin surface are drawn away.

[0008] The base comprises a base seat, a base wing and a base head, the base seat and the base head are connected through the base wing, the base seat can be detachably mounted on the shell, a through hole is arranged on the base head, when in use, the needle passes through the through hole on the base head and pierces the skin, a groove surrounding the through hole in the middle of the base head is arranged on the base head, a base partition is arranged in the groove, the base partition and the base plate of the base head are arranged at intervals, a cavity is formed between the base partition and the base plate of the base head, a second hose connector is installed on the bottom side wall of the cavity, the second hose connector is a hollow structure, one end of the second hose connector is connected to the cavity between the base plate of the base head and the base partition, and the other end is connected to the negative pressure device, the base partition is provided with a partition hole which is a through hole, the partition hole is connected to the cavity between the base plate of the base head and the base partition, and excess tissue and blood on the skin surface are sucked into the cavity between the base plate of the base head and the base partition through the partition hole.

[0009] The needle head is installed at one end of the shell head, and the needle head also includes a needle base and a connecting sleeve. One end of the connecting sleeve is connected to the driving part in the shell, and the other end passes through the through hole on the end cover at one end of the shell head and is connected to the needle base. The needle is installed on the needle base, and the needle base is located between the bottom support seat and the bottom support head.

[0010] The driving unit includes a first driving unit, a second driving unit and a third driving unit. The first driving unit is connected to and drives the needle head to move back and forth linearly in a first direction. The second driving unit is connected to and drives the first driving unit and the needle head to move back and forth linearly in a second direction. The third driving unit is connected to and drives the first driving unit, the second driving unit and the needle head to move back and forth linearly in a third direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0011] The first driving unit includes a first motor, the second driving unit includes a second motor, and the third driving unit includes a third motor.

[0012] The first motor transmits drive to the needle head through the screw rod, and the needle head moves back and forth in a straight line along the length direction of the screw rod.

[0013] The first driving part and the second driving part are connected through a first connecting part. The first driving part is supported on the first connecting part. The second driving part also includes a cam and a connecting rod. The second motor is connected to and drives the cam to rotate. One end of the connecting rod is hinged on the cam and the other end is hinged on the first connecting part. The cam and the connecting rod constitute a crank-connecting rod mechanism.

[0014] A second connecting part is also provided in the shell, and the third motor, the second driving part and the first connecting part are all supported and installed on the second connecting part. The third driving part also includes a gear and a rack. The rack is fixedly installed in the shell, and the length direction of the rack is parallel to the third direction. The third motor is connected to and drives the gear to rotate, and the gear and the rack are meshed.

[0015] The control host also includes a supporting shell, a display and a main control board installed on the supporting shell, and the handheld device is electrically connected to the main control board.

[0016] The beneficial effects of the present invention are:

[0017] (1) By extracting excess tissue and blood through negative pressure, compared with invasive (such as plastic surgery) or non-invasive (such as laser, radio frequency (RF) or ultrasound) skin treatment technologies, this solution has low risk and predictable results. It has the advantages of less trauma, no thermal effect and thermal damage, obvious treatment effect and short treatment cycle. It is a non-thermal excision technology that can achieve skin tightening, skin lifting and reduce skin sagging. Compared with thermal effect methods, it has fewer side effects. After treatment, the skin tissue can quickly close the holes, thereby minimizing bleeding and scar formation in the holes. The skin tissue heals quickly and there are basically no adverse reactions.

[0018] (2) The operation is simple and has low requirements on the operating environment. It does not need to be treated in a hospital surgical environment and can be treated in a SPA, beauty salon or at home. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a handheld device according to an embodiment of the present invention with part of the housing removed;

[0020] Figure 2 for Figure 1 Another perspective structural diagram of;

[0021] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0022] Figure 4 A schematic diagram of the structure of a needle base according to an embodiment of the present invention;

[0023] Figure 5 for Figure 4 Another perspective structural diagram of;

[0024] Figure 6 for Figure 1 A structural schematic diagram from another perspective;

[0025] Figure 7 for Figure 6 An enlarged schematic diagram of point B;

[0026] Figure 8 for Figure 6 An enlarged schematic diagram of point C;

[0027] Fig. 9 for Figure 6 An enlarged schematic diagram of point D;

[0028] Fig.10 A schematic diagram of the structure of a control host according to an embodiment of the present invention;

[0029] Fig.11 This is a schematic diagram of the treatment process according to an embodiment of the present invention.

[0030] Fig.12 The figure is a schematic diagram of component connections on a control host according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] A skin treatment system, which extracts excess skin tissue and blood from the human body by negative pressure after piercing the skin. The system includes a control host and a handheld device, which is held by a person. The handheld device is as follows Figures 1 to 9 As shown, it includes a housing 1 and a needle head 2 installed on the housing 1, a driving part, a base 3, a PCB board, and a sensor module.

[0034] The housing 1 has an internal cavity and a handle 11 for easy hand-holding. A through hole is provided on the end cap at one end of the housing 1. The needle 2 is inserted into or withdrawn from human skin tissue from one end of the housing 1.

[0035] The needle head 2 is mounted on one end of the head of the housing 1, and the needle head 2 includes a needle 21, a needle base 22 and a connecting sleeve 23. The needle 21 is hollow. One end of the connecting sleeve 23 is located in the housing 1, and the other end passes through the through hole on the end cover of the head of the housing 1 and is connected to the needle base 22, and the needle 21 is mounted on the needle base 22. In other words, the needle base 22 is not located in the internal cavity of the housing 1, but is located outside the housing 1. At least one needle 21 can be mounted on the needle base 22, and one end of the needle 21 is mounted on the needle base 22, and the other end exceeds the needle base 22.

[0036] The needle base 22 is as Figure 4 and 5 As shown, it includes a base body 221, a needle mounting seat 227, a clamping joint 223, an end cover 224, a first hose joint 225 and a first clamping member 226. One end of the base body 221 is provided with a clamping joint 223 for clamping with the connecting sleeve 23, and the other end is provided with a needle mounting seat 227 for mounting the needle 21. At least one needle mounting position 222 is provided on the needle mounting seat 227. The needle mounting position 222 is a through hole provided on the needle mounting seat 227. When installed, one end of the needle 21 passes through the needle mounting position 222 and the other end protrudes outward. A partition is provided at one end of the base body 221 near the needle mounting seat 227, and a cavity is formed between the partition and the needle mounting seat 227. The first hose connector 225 is installed on the side wall of the cavity. The first hose connector 225 is a hollow structure, one end of the first hose connector 225 is connected to the cavity between the partition and the needle mounting seat 227, and the other end is suspended outward. The first hose connector 225 is used to connect a three-way hose, which is connected to the negative pressure pump of the control host to provide negative pressure to extract excess tissue and blood from the skin punctured by the needle 21. Preferably, there are at least two needle mounting positions 222, and each needle mounting position 222 is arranged in a row.

[0037] In this embodiment, three needle mounting positions 222 are arranged in a row.

[0038] The middle part of the base body 221 is fixedly sleeved with an end cover 224. When the handheld device is not in use, the end cover 224 is used to cover the through hole on the end cover at one end of the head of the shell 1 to prevent impurities from entering the shell 1 through the through hole. The end cover 224 is provided with a plurality of first clamping members 226 at one end near the head of the shell 1, which are used to achieve stable clamping with the shell 1 so that the end cover 224 can stably cover the through hole on the end cover at one end of the head of the shell 1. Correspondingly, a plurality of second clamping members 12 are provided at one end of the head of the shell 1. The second clamping members 12 are as shown in FIG. Figure 6 and 8 As shown in FIG. 1 , it is a buckle with a wedge-shaped head and elasticity. Figure 5As shown, it is a structure with elasticity and a clamping hole. The head of the second clamping member 12 can be clamped into the clamping hole of the first clamping member 226, and the second clamping member 12 and the first clamping member 226 can be separated under the action of external force.

[0039] The needle 21 is used to pierce the diseased or redundant human skin tissue, and extract some redundant tissue and blood through the hose connected to the first hose connector 225. If the inner diameter of the needle 21 is too large, the amount of bleeding of the skin tissue will increase and the healing time of the skin tissue will be affected. If the inner diameter is too small, the treatment effect will be reduced and the number of operations will increase. Preferably, the inner diameter of the needle 21 is 0.3-0.5 mm. In this embodiment, the inner diameter of the needle 21 is 0.5 mm.

[0040] The shape and structure of the tip or the tip of the needle 21 are as follows: Figure 7 As shown, the cutting angle is 60° to 80° by beveling on both sides, that is, the needle head angle is 10° to 30°. Specifically, the tip of the needle 21 is a symmetrical structure, similar to the blade of a flat-blade screwdriver, except that the screwdriver body is solid, while the needle 21 is hollow. In other words, the tip of the needle 21 includes two inclined surfaces, which are symmetrical with respect to a plane passing through the central axis of the needle 21, and the angle between the two inclined surfaces is the needle head angle.

[0041] The needle angle is related to the puncture force. The greater the puncture force required, the stronger the patient's pain, and the greater the device power consumed by the puncture. In the puncture force test of needles 21 of different sizes and / or needles 21 of different needle angles, it was found that the puncture force value was the smallest when the needle angle was 20°, thereby reducing the patient's pain and damage to the skin. As the puncture force decreases, the device power required for puncture also decreases, greatly reducing energy consumption, and the required motor size is also reduced, so that the device size can be reduced for easy storage and operation. The following table shows the test results of the puncture force of two different sizes of needles 21. Four tests were conducted on needles of the same size to obtain four sets of data. As can be seen from Table 1, for the two sizes of needles 21, the puncture force value is the smallest when the needle angle is 20°.

[0042] Table 1 Test results of puncture force of two different needle sizes

[0043]

[0044]

[0045] In this embodiment, the needle angle is 20°.

[0046] The base 3 is detachably mounted on one end of the head of the housing 1. The base 3 is used to contact and abut the skin surface of the treatment area. On the one hand, it plays a role in fixing the handheld device, and on the other hand, it can also straighten the skin to achieve a better treatment effect. Figure 6 As shown, the bottom support seat 31, the bottom support head 33 and the two bottom support wings 32 are included. The bottom support seat 31 and the bottom support head 33 are both plate-like structures. The bottom support seat 31 is provided with two through holes, and the bottom support head 33 is provided with a through hole. When in use, the needle 21 passes through the through holes on the bottom support head 33 and then pierces the skin. The area of ​​the bottom support seat 31 is larger than the area of ​​the bottom support head 33. The bottom support seat 31 and the bottom support head 33 are arranged in parallel and spaced apart, and the through hole on the bottom support head 33 is aligned with one of the through holes on the bottom support seat 31. The two bottom support wings 32 are arranged at intervals, one end of the bottom support wing 32 is fixedly connected to the lower end of the bottom support seat 31, and the other end of the bottom support wing 32 is connected to the bottom support head 33. The outer surface of the bottom support wing 32 is smooth and streamlined. A through hole is formed between the lower end of the bottom support head 33 and the two bottom support wings 32. The lower end of the bottom support wing 32 is closer to the lower end of the bottom support seat 31 than the upper end of the bottom support wing 32. Furthermore, the two bottom supporting wings 32 are integrally connected via a connecting piece. During manufacturing, the two bottom supporting wings 32 can be obtained by removing material from a type of horn-shaped hollow structure to form a hollow structure.

[0047] When the base 3 is mounted on the housing 1, the base 31 is connected to one end of the head of the housing 1, and a through hole on the base 31 is aligned and connected with a through hole on the end cover at one end of the head of the housing 1, and the through hole on the base 31 is aligned with the through hole on the base head 33. The needle base 22 is located between the base 31 and the base head 33. The lower end of the base 31 is the end close to the handle 11.

[0048] Bottom support head 33 Fig. 9 As shown, the bottom support head 33 is provided with a groove 333 surrounding the through hole in the middle of the bottom support head 33, and a bottom support partition is provided in the groove. The bottom support partition and the bottom plate of the bottom support head 33 are arranged at intervals, so that a cavity is formed between the bottom support partition and the bottom plate of the bottom support head 33, and a second hose connector 331 is installed on the bottom side wall of the cavity. The second hose connector 331 is a hollow structure, one end of the second hose connector 331 is connected to the cavity between the bottom plate of the bottom support head 33 and the bottom support partition, and the other end is suspended downward, and the second hose connector 331 is used to connect with a three-way hose. The bottom support partition is provided with a partition hole 332 as a through hole, and the partition hole 332 is connected to the cavity between the bottom plate of the bottom support head 33 and the bottom support partition.

[0049] Based on the above structure, in order to facilitate the suction of excess tissue and blood on the skin surface, the height of the inner circle side wall of the groove 333 is lower than that of the outer circle side wall. In other words, the inner circle side wall and the outer circle side wall of the groove 333 form a "U"-shaped groove, and the two sides of the inner circle side wall are respectively the middle through hole of the bottom support head 33 and the groove 333. In this way, when the bottom support head 33 contacts the skin, the outer circle side wall of the groove 333 contacts the skin, and there is a gap between the inner circle side wall and the skin. The excess tissue and blood on the skin surface surrounded by the bottom support head 33 can be sucked into the partition hole 332 through the gap, and then pass through the cavity between the bottom plate of the bottom support head 33 and the bottom support partition, the second hose connector 331, and the three-way hose, and then enter the negative pressure bottle 94 (see the following introduction).

[0050] The driving part is used to drive the needle head 2 to move in three mutually perpendicular directions. The driving part is located in the housing 1, and the driving part includes a first driving part 4, a second driving part 5 and a third driving part 6. The first driving part 4 connects and drives the needle head 2 to move linearly back and forth in the first direction, the second driving part 5 connects and drives the first driving part 4 and the needle head 2 to move linearly back and forth in the second direction, and the third driving part 6 connects and drives the first driving part 4, the second driving part 5 and the needle head 2 to move linearly back and forth in the third direction. The first direction, the second direction and the third direction are perpendicular to each other. The length direction of the connecting sleeve 23 is parallel to the first direction.

[0051] In this embodiment, the first driving part 4 includes a first motor 41 and a screw. The first motor 41 is located in the housing 1. The length direction of the screw is parallel to the first direction. The screw is provided with an external thread, and the connecting sleeve 23 is provided with an internal thread. One end of the screw is connected to the first motor 41, and the first motor 41 drives the screw to rotate. The other end of the screw is inserted into the connecting sleeve 23 and one end is screwed with the connecting sleeve 23. The other end of the connecting sleeve 23 passes through the through hole on the end of the housing 1 and is connected to the clamping joint 223 of the needle base 22 through a buckle. When the first motor 41 is started, the screw rotates, driving the connecting sleeve 23 to move along the length direction of the screw, and the connecting sleeve 23 drives the needle base 22 and the needle 21 to move linearly synchronously.

[0052] In this embodiment, the first driving part 4 and the second driving part 5 are connected by a first connecting part, and the first connecting part includes a first support plate 71, a first slider 72 and a first guide rail 73. The first motor 41 is supported and installed on the first support plate 71, and the first guide rail 73 is located below the first support plate 71. There are two first sliders 72 and two first guide rails 73, and the two first sliders 72 are respectively connected to the two ends of the bottom of the first support plate 71. The two first sliders 72 are also slidably arranged on the two first guide rails 73. The upper end of the first slider 72 is fixedly connected to the first support plate 71, and the lower end is slidably arranged on the first guide rail 73. The first slider 72 can move along the first guide rail 73, and the moving direction is parallel to the second direction. The second driving part 5 is connected to and drives at least one first slider 72 to move along the first guide rail 73.

[0053] In this embodiment, the second driving unit 5 includes a second motor 51, a cam 52, a coupling 53 and a connecting rod 54. The second motor 51 is connected to the cam 52 through the coupling 53, one end of the connecting rod 54 is hinged on the cam 52, and the other end is hinged on a first slider 72, and the cam 52 and the connecting rod 54 constitute a crank connecting rod mechanism. In other words, the hinge of the connecting rod 54 and the cam 52 is not located on the straight line where the driving shaft of the second motor 51 is located, so that when the second motor 51 drives the cam 52 to rotate, the hinge of the connecting rod 54 and the cam 52 rotates with the straight line where the driving shaft of the second motor 51 is located as the central axis. Based on the above structure, when the cam 52 rotates, the connecting rod 54 drives the first slider 72 to move along the first guide rail 73.

[0054] In this embodiment, the third driving part 6, the second driving part 5 and the first connecting part are all supported and installed on the second connecting part, and the second connecting part includes a second slider 81, a second slide rail 82 and a second support block 83. The second slider 81 and the second slide rail 82 are each provided with two, and the second slide rail 82 is fixedly installed in the housing 1. The two second sliders 81 are respectively slid on the two second slide rails 82, and the sliding direction is parallel to the third direction. There are multiple second support blocks 83, and the third driving part 6, the second driving part 5 and the first connecting part are all installed on the second slider 81 through the second support block 83. Specifically, the first guide rail 73 is connected to a second support block 83, and the second support block 83 is connected to a second slider 81. The second motor 51 is installed on another second support block 83, and the second support block 83 is connected to another second slider 81. In this way, the second driving part 5 and the first connecting part are all supported and installed on the second connecting part.

[0055] In this embodiment, the third driving unit 6 includes a third motor 61, a gear 62 and a rack 63. The rack 63 is fixedly installed in the housing 1. The rack 63 is located between the two second slide rails 82. The length direction of the rack 63 is parallel to the third direction. The third motor 61 is connected to and drives the gear 62 to rotate. The gear 62 is located above the rack 63, and the gear 62 and the rack 63 are meshed. The third motor 61 and the second motor 51 are installed on the same second support block 83, and the driving axes of the third motor 61 and the second motor 51 are parallel.

[0056] Based on the above structure, when the third motor 61 drives the gear 62 to rotate, the gear 62 and the rack 63 will move relative to each other. Since the rack 63 is fixed in the housing 1, the third motor 61 and the gear 62 will drive the second slider 81 to move along the length direction of the second slide rail 82. The second slider 81 will drive the second support block 83 to move synchronously.

[0057] The sensor module is mainly used to perform initialization (zeroing) detection on each motor after the equipment is turned on.

[0058] The PCB board is installed in the housing 1 , and the first motor 41 , the second motor 51 , the third motor 61 , and the sensor module are all connected to the PCB board.

[0059] The control host is as follows Fig.10 As shown, it includes a supporting shell 91 and a negative pressure device, a display 92, and a main control board installed on the supporting shell 91.

[0060] The bottom of the supporting shell 91 is provided with a universal wheel 93, and the upper end is provided with a trolley handle 95, which is convenient for movement. The supporting shell 91 has a cavity. The negative pressure device includes a negative pressure bottle 94, a negative pressure pump, a monitor and a filter. The negative pressure bottle 94 is located outside the supporting shell 91, and the negative pressure pump and the filter are located inside the supporting shell 91. The negative pressure bottle 94 is connected to the handheld device through a three-way hose. Specifically, the first interface of the three-way hose is connected to the first hose connector 225, the second interface is connected to the second hose connector 331, and the third interface is connected to the inlet on the negative pressure bottle 94. The outlet of the negative pressure bottle 94 is connected to one end of the filter through another hose, and the other end of the filter is connected to the monitor and the negative pressure pump in turn. The negative pressure pump is used to generate negative pressure, and the excess skin tissue and blood are extracted into the negative pressure bottle 94 through the hose. The pressure of the negative pressure pump can be adjusted by a regulating valve, and the regulating valve is electrically connected to the main control board, and the pressure value of the negative pressure pump can be set by operation on the display 92. The monitor is used to monitor the pressure value currently provided by the negative pressure pump in real time. When the pressure value exceeds the preset threshold, an alarm will be given through the display. The filter is used to filter skin tissue to prevent skin tissue from entering the negative pressure pump and causing damage.

[0061] The display 92 is mounted on the top of the supporting housing 91. The display 92 may also be provided with an SD card slot or a USB interface for system updates or exporting treatment data.

[0062] The PCB board, the display, and the negative pressure device are all connected to the main control board.

[0063] The support shell 91 is also provided with a switch button 96, a main power line 97 and a power interface 98 for the handheld device. One end of the main power line 97 can be connected to an external power source, and the other end extends into the support shell 91, and is used to provide the main power for the system. The switch button 96 can cut off or connect the power provided by the main power line 97. The handheld device is connected to the control host through the power interface 98, and the handheld device obtains power through the power interface 98. The handheld device also exchanges information with the control host through the power interface 98.

[0064] Based on the above structure, the working principle and process of the present invention are as follows: plug the power plug of the handheld device into the power interface 98, plug the plug at one end of the main power line 97 into the external power supply, turn on the switch button 96, turn on the power of the system, and the main control board enters the initialization state. At this time, the operator can observe the initialization situation and the device status through the display 92. When the initialization is completed, the system enters the optional setting interface, and the operator adjusts the status and parameters of the handheld device and the control host according to the actual situation. After completion, the working interface is entered. At this time, the operator can monitor the status of each device in real time, including the handheld device, the control host, the power supply, the negative pressure device, the treatment depth, the negative pressure state, the number of needle insertions, the default treatment parameters, etc. The operator can obtain the current situation in real time through the display, and can manually adjust the treatment parameters and switch to the automatic mode.

[0065] After the treatment begins, the base head 33 is brought into contact with and aligned with the skin to be treated, and the needle head 2 is manually or automatically driven to align the needle head 2 with the target position and insert the needle head 2 into the human skin to a set depth. The movement mode and distance of the needle head 2 can be set in advance and automatically controlled, or manually controlled by adjusting each motor. Figure 8 The figure shows the treatment process of this embodiment. The circle is the set puncture area of ​​the needle 21, and all puncture areas are distributed within the skin area limited by the through hole on the base head 33. The filled circle represents the area where the puncture has been completed, and the unfilled circle represents the area where the puncture has not been completed. When setting the program, you can follow Figure 8 The rotation parameters of each motor are set in the puncture sequence shown, so that the needle 21 is moved in accordance with Figure 8The needle 21 moves in the order shown and completes the puncture. When the needle 21 pierces the skin, the excess tissue and blood in the skin are sucked into the needle 21 by the negative pressure through the hollow needle 21, and then sucked into the three-way hose through the first hose connector 225, and finally enter the negative pressure bottle 94. The excess tissue and blood overflowing on the skin surface can be sucked into the negative pressure bottle 94 through the partition hole 332, the second hose connector 331 and the three-way tube in sequence. Obviously, after each puncture is completed, the needle 21 must be withdrawn from the skin and returned to its original position before it can move in the second direction and the third direction.

[0066] It should be noted that the skin to be treated is usually one or more areas, so during operation, the bottom support head 33 is aligned with the area to be treated by visual judgment. Figure 8 Or other puncture sequences can achieve complete and comprehensive treatment of the area.

[0067] After the operation is completed, the operator needs to remove the needle 21 and the base 3 and dispose of them according to the requirements for medical waste.

[0068] In this embodiment, each motor transmits drive through a purely mechanical structure, which has good safety. For example, the screw rod and the connecting sleeve 23 are difficult to move manually when there is no power, which is equivalent to having a self-locking function.

[0069] It should be noted that, based on the above description, those skilled in the art can easily know the connection method of each component on the control host, or make some improvements through conventional technical means. Fig.12 The figure is a schematic diagram of component connections on a control host according to an embodiment of the present invention.

[0070] Finally, it is necessary to explain here that the above embodiments are only used to further illustrate the technical solution of the present invention in detail and cannot be understood as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made by technicians in this field based on the above content of the present invention all fall within the scope of protection of the present invention.

Claims

1. A skin treatment system, characterized in that: The invention comprises a control host and a handheld device, wherein the handheld device comprises a housing (1), a needle head (2) and a driving unit mounted on the housing (1), the needle head (2) comprising a hollow needle (21), the driving unit being connected to and driving the needle head (2) to move until the needle (21) is inserted into or withdrawn from human skin tissue, and the control host comprises a negative pressure device, wherein the negative pressure device provides negative pressure for the needle (21) so as to extract human skin tissue through the needle (21) inserted into the human skin tissue.

2. The system according to claim 1, characterized in that: The handheld device further comprises a base (3) which is detachably mounted on the housing (1). When the handheld device is in operation, one end of the base (3) contacts the surface of the skin to be treated, and the drive unit drives the needle (21) to pass through the base (3) and pierce the skin. A channel is provided on the base (3), and the channel is connected to a negative pressure device, through which excess tissue and blood on the skin surface are drawn away.

3. The system according to claim 2, characterized in that: The base (3) comprises a base seat (31), a base wing (32) and a base head (33). The base seat (31) and the base head (33) are connected via the base wing (32). The base seat (31) is detachably mounted on the housing (1). A through hole is provided on the base head (33). When in use, the needle (21) passes through the through hole on the base head (33) and then pierces the skin. The base head (33) is provided with a groove (333) surrounding the through hole in the middle of the base head (33). A base partition is provided in the groove. The base partition and the base plate of the base head (33) are arranged at intervals. The base partition and the base head (33) are connected to each other. 3) forms a cavity between the bottom plates of the bottom support head (33), a second hose connector (331) is installed on the bottom side wall of the cavity, the second hose connector (331) is a hollow structure, one end of the second hose connector (331) is connected to the cavity between the bottom plate of the bottom support head (33) and the bottom support partition, and the other end is connected to the negative pressure device, the bottom support partition is provided with a partition hole (332) which is a through hole, the partition hole (332) is connected to the cavity between the bottom plate of the bottom support head (33) and the bottom support partition, and the excess tissue and blood on the skin surface are sucked into the cavity between the bottom plate of the bottom support head (33) and the bottom support partition through the partition hole (332).

4. The system according to claim 3, characterized in that: The needle head (2) is mounted on one end of the head of the housing (1). The needle head (2) also comprises a needle base (22) and a connecting sleeve (23). One end of the connecting sleeve (23) is connected to the driving part in the housing (1), and the other end is connected to the needle base (22) after passing through a through hole on an end cover at one end of the head of the housing (1). The needle (21) is mounted on the needle base (22), and the needle base (22) is located between the bottom support seat (31) and the bottom support head (33).

5. The system according to claim 1, characterized in that: The driving part comprises a first driving part (4), a second driving part (5) and a third driving part (6); the first driving part (4) is connected to and drives the needle part (2) to move linearly back and forth in a first direction; the second driving part (5) is connected to and drives the first driving part (4) and the needle part (2) to move linearly back and forth in a second direction; the third driving part (6) is connected to and drives the first driving part (4), the second driving part (5) and the needle part (2) to move linearly back and forth in a third direction; the first direction, the second direction and the third direction are perpendicular to each other.

6. The system according to claim 5, characterized in that: The first driving unit (4) includes a first motor (41), the second driving unit (5) includes a second motor (51), and the third driving unit (6) includes a third motor (61).

7. The system according to claim 6, characterized in that: The first motor (41) transmits drive to the needle head (2) via the screw rod, and the needle head (2) moves back and forth in a straight line along the length direction of the screw rod.

8. The system according to claim 6, characterized in that: The first driving part (4) and the second driving part (5) are connected via a first connecting part. The first driving part (4) is supported on the first connecting part. The second driving part (5) further comprises a cam (52) and a connecting rod (54). The second motor (51) is connected to and drives the cam (52) to rotate. One end of the connecting rod (54) is hinged on the cam (52) and the other end is hinged on the first connecting part. The cam (52) and the connecting rod (54) form a crank-connecting rod mechanism.

9. The system according to claim 6, characterized in that: A second connecting part is also provided in the housing (1); the third motor (61), the second driving part (5) and the first connecting part are all supported and mounted on the second connecting part; the third driving part (6) further comprises a gear (62) and a rack (63); the rack (63) is fixedly mounted in the housing (1); the length direction of the rack (63) is parallel to the third direction; the third motor (61) is connected to and drives the gear (62) to rotate; the gear (62) and the rack (63) are meshed.

10. The system according to claim 6, characterized in that: The control host also includes a supporting shell (91), a display (92) mounted on the supporting shell (91), and a main control board, and the handheld device is electrically connected to the main control board.

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