Electric microneedle
By designing electric microneedles in microneedle treatment equipment, and using motor drive transmission system and elastomer to achieve smooth needle release and rapid needle retraction, the problem of unstable microneedle movement in existing equipment is solved and the user experience is improved.
Patent Information
- Application Number
- CN202420838249.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-22
AI Technical Summary
In existing microneedle treatment equipment, the movement of microneedle often ejaculates too fast and retracts too slowly, and the ejaculates are not smooth enough, causing adverse experiences to the user.
An electric microneedle is designed, using components such as a motor, an inclined rotor, a transmission shaft and an elastic body. The inclined rotor drives the transmission shaft to move through the motor, and then drives the microneedle assembly to enter and exit in a straight line. By providing the first and second elastic bodies to overcome the elastic force when the needle is discharged, it can achieve a smooth needle exit, and achieve a quick needle return when the needle is received.
The microneedle is able to gently release the needle and quickly retract the needle, which improves the user experience and ensures that the movement of each unit is more stable and smooth.
Smart Images
Figure CN222549962U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro-needle injection therapy for medical injection, skin beauty injection, hair loss treatment, obesity treatment and the like, and in particular to an electric micro-needle. Background Art
[0002] At present, with the rapid development of medical cosmetology, various skin beauty products with excellent beauty effects are emerging in an endless stream. However, beauty products must penetrate into the skin to exert their effects. The traditional method of use is to apply beauty products on the skin, but due to the obstruction of the stratum corneum and granular layer of the outermost epidermis of the skin, the skin's absorption rate of beauty products is low, causing great waste to users. Based on this, some microneedle treatment devices have appeared on the market; microneedle treatment devices are used for skin and hair care treatments for various situations that help drug absorption and penetration. During the microneedle treatment process, microneedles are used to puncture holes in the skin, and then the medicine or cosmetics are applied to the skin to fully penetrate the skin to maximize the effect.
[0003] In existing microneedle treatment devices, the movement of microneedles is mostly to extend and retract the needles back and forth, and a reset spring is used to achieve rapid reciprocating movement. However, the needles are often extended too quickly or retracted too slowly, which causes a great bad experience for users, especially when the needles are not extended smoothly enough. Therefore, there is a need for an electric microneedle that can solve the above problems. Utility Model Content
[0004] The main purpose of the present application is to provide an electric microneedle, aiming to solve the problems mentioned in the background technology.
[0005] The present application provides an electric microneedle, comprising a shell, a microneedle assembly, a first elastic body and a driving mechanism installed in the shell, one end of the first elastic body contacts the microneedle assembly, one end of the first elastic body contacts the inside of the shell, the driving mechanism comprises a motor, an inclined wheel, a first transmission shaft, a second transmission shaft, a connecting block, a transmission box, a limit plate and a second elastic body, an inclined wheel is installed on the output shaft of the motor, the angle between the transmission end face of the inclined wheel and the output shaft of the motor is an obtuse angle or an acute angle, one side of the transmission end face of the inclined wheel contacts one end of the first transmission shaft, the other end of the first transmission shaft is fixed to the connecting block, one end of the second transmission shaft is fixed to the connecting block, the other end of the second transmission shaft passes through the transmission box and contacts the microneedle assembly, the first transmission shaft and the second transmission shaft are respectively parallel to the output shaft of the motor, and the driving mechanism is used to drive the microneedle assembly to move in and out along a straight line;
[0006] An end cover is also provided on the transmission box body, and the second transmission shaft vertically passes through the end cover. The limit plate is installed on the second transmission shaft, and the limit plate and the second elastomer are arranged in the transmission box body. One end of the second elastomer contacts the inner wall of the end cover, and the other end of the second elastomer contacts the limit plate.
[0007] Furthermore, a limiting column parallel to the second transmission shaft is provided on the connecting block, a limiting hole is provided on the transmission housing, and one end of the limiting column is passed through the limiting hole to limit the movement trajectory of the second transmission shaft.
[0008] Furthermore, at least two limiting columns are provided on the connecting block, and all the limiting columns are symmetrically distributed relative to the second transmission shaft.
[0009] Furthermore, a groove is provided on the end surface of the tilting wheel in contact with the first transmission shaft. When the end of the first transmission shaft is located in the groove, the microneedle assembly is in a needle-retracting state; when the end of the first transmission shaft is out of the groove, the microneedle assembly is in a needle-extracting state.
[0010] Furthermore, the groove wall of the groove is in a smooth arc shape, and the end of the first transmission shaft can smoothly detach from the groove along the groove wall.
[0011] Furthermore, the first elastic body and / or the second elastic body is a spring element.
[0012] Furthermore, it also includes a lamp and a light guide component, the lamp is arranged in the shell, and the lamp is arranged on the ring side of the microneedle component, the light guide component includes a first light guide member and a second light guide member, the first light guide member is embedded in the shell, and one side of the first light guide member is opposite to the lamp, and the other side of the first light guide member is in contact with the second light guide member, and the second light guide member is an annular structure surrounding the microneedle component.
[0013] The utility model sets a motor, an inclined wheel, a first transmission shaft, a second transmission shaft, and a connecting block, and uses the motor to start and rotate the inclined wheel. The rotation of the inclined wheel drives the first transmission shaft in contact with the inclined wheel to move axially, and drives the second transmission shaft fixed to the first transmission shaft to move axially, thereby driving the microneedle assembly in contact with the second transmission shaft to move axially; the utility model also sets a first elastomer and a second elastomer, wherein the first elastomer serves as a reset element set between the microneedle assembly and the shell, and the second elastomer serves as a reset element set inside the driving mechanism. When the motor is working, the needle needs to overcome the elastic force of the first elastomer and the second elastomer to achieve smooth needle withdrawal, and the needle can be quickly returned when the needle is retracted. Moreover, since the reset elements are set in different units, the movement of each unit (microneedle assembly, driving mechanism) is more stable and smooth. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0016] Figure 1 It is a schematic diagram of the overall structure of an electric microneedle according to an embodiment of the present invention.
[0017] Figure 2 yes Figure 1 Front view of an embodiment.
[0018] Figure 3 yes Figure 2 Section view about cutting line AA.
[0019] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0021] See also Figure 1-3The present application provides an electric microneedle 100, comprising a housing 10, a microneedle assembly 20, a first elastic body 30 and a driving mechanism installed in the housing 10, one end of the first elastic body 30 contacts the microneedle assembly 20, and one end of the first elastic body 30 contacts the inside of the housing 10, the driving mechanism comprises a motor 41, an inclined wheel 42, a first transmission shaft 43, a second transmission shaft 44, a connecting block 45, a transmission box 46, a limit plate 47 and a second elastic body 48, an inclined wheel 42 is installed on the output shaft of the motor 41, and the angle between the transmission end face of the inclined wheel 42 and the output shaft of the motor 41 is an obtuse angle or an acute angle, One side of the transmission end surface of the inclined rotating wheel 42 is in contact with one end of the first transmission shaft 43, the other end of the first transmission shaft 43 is fixed to the connecting block 45, one end of the second transmission shaft 44 is fixed to the connecting block 45, and the other end of the second transmission shaft 44 passes through the transmission box 46 and contacts the microneedle assembly 20. The first transmission shaft 43 and the second transmission shaft 44 are respectively parallel to the output shaft of the motor 41, and the driving mechanism is used to drive the microneedle assembly 20 in and out along a straight line; an end cover 461 is also provided on the transmission box 46, and the second transmission shaft 44 vertically passes through the end cover 461. A limit plate 47 is installed on the second transmission shaft 44, and the limit plate 47 and the second elastomer 48 are arranged in the transmission box 46, one end of the second elastomer 48 contacts the inner wall of the end cover 461, and the other end of the second elastomer 48 contacts the limit plate 47.
[0022] The utility model is provided with a motor 41, an inclined wheel 42, a first transmission shaft 43, a second transmission shaft 44, and a connecting block 45, and the motor 41 is used to start and drive the inclined wheel 42 to rotate. The rotation of the inclined wheel 42 drives the first transmission shaft 43 in contact with it to move axially, so as to drive the second transmission shaft 44 fixed to the first transmission shaft 43 to move axially, thereby driving the microneedle assembly 20 in contact with the second transmission shaft 44 to move axially; the utility model is also provided with a first elastic body 30 and a second elastic body 48, wherein the first elastic body 30 is used as a reset element set between the microneedle assembly 20 and the housing 10, and the second elastic body 48 is used as a reset element set inside the driving mechanism. When the motor 41 is working, the needle needs to overcome the elastic force of the first elastic body 30 and the second elastic body 48 to achieve smooth needle withdrawal, and the needle can be quickly returned when the needle is retracted. Moreover, since the reset elements are set in different units, the movement of each unit (microneedle assembly 20, driving mechanism) is made more stable and smooth.
[0023] In one embodiment of the utility model, a limiting column 49 parallel to the second transmission shaft 44 is further provided on the connecting block 45 , a limiting hole 462 is provided on the transmission box 46 , and one end of the limiting column 49 is passed through the limiting hole 462 to limit the movement trajectory of the second transmission shaft 44 .
[0024] Preferably, at least two limiting columns 49 are provided on the connecting block 45, and all the limiting columns 49 are symmetrically distributed relative to the second transmission shaft 44; the plurality of limiting columns 49 are symmetrically distributed around the second transmission shaft 44 so that the limiting structure is more stable.
[0025] In one embodiment of the utility model, a groove is provided on the end surface of the inclined rotating wheel 42 that contacts the first transmission shaft 43. When the end of the first transmission shaft 43 is located in the groove, the microneedle assembly 20 is in a needle-retracting state; when the end of the first transmission shaft 43 is out of the groove, the microneedle assembly 20 is in a needle-extracting state.
[0026] Preferably, the groove wall of the groove is a smooth arc shape, and the end of the first transmission shaft 43 can smoothly detach from the groove along the groove wall.
[0027] In one embodiment of the present invention, the first elastic body 30 and / or the second elastic body 48 is a spring element.
[0028] In one embodiment of the present invention, the electric microneedle 100 also includes a lamp 50 and a light guide assembly 60. The lamp is arranged in the shell 10, and the lamp is arranged on the ring side of the microneedle assembly 20. The light guide assembly 60 includes a first light guide 61 and a second light guide 62. The first light guide 61 is embedded in the shell 10, and one side of the first light guide 61 is opposite to the lamp, and the other side of the first light guide 61 is in contact with the second light guide 62, and the second light guide 62 is an annular structure surrounding the microneedle assembly 20. In the present invention, the first light guide 61 and the second light guide 62 are arranged to guide the visible light surrounding the microneedle assembly 20, so that when using the electric microneedle 100, the part where the microneedle injection beauty product is to be applied can be clearly seen.
[0029] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.
Claims
1. An electric microneedle, characterized in that: It includes a shell, a microneedle assembly, a first elastic body and a driving mechanism installed in the shell, one end of the first elastic body is in contact with the microneedle assembly, one end of the first elastic body is in contact with the inside of the shell, the driving mechanism includes a motor, an inclined wheel, a first transmission shaft, a second transmission shaft, a connecting block, a transmission box, a limit plate and a second elastic body, an inclined wheel is installed on the output shaft of the motor, the angle between the transmission end face of the inclined wheel and the output shaft of the motor is an obtuse angle or an acute angle, one side of the transmission end face of the inclined wheel is in contact with one end of the first transmission shaft, the other end of the first transmission shaft is fixed to the connecting block, one end of the second transmission shaft is fixed to the connecting block, the other end of the second transmission shaft passes through the transmission box and contacts with the microneedle assembly, the first transmission shaft and the second transmission shaft are respectively parallel to the output shaft of the motor, and the driving mechanism is used to drive the microneedle assembly to move in and out along a straight line; An end cover is also provided on the transmission box body, and the second transmission shaft vertically passes through the end cover. The limit plate is installed on the second transmission shaft, and the limit plate and the second elastomer are arranged in the transmission box body. One end of the second elastomer contacts the inner wall of the end cover, and the other end of the second elastomer contacts the limit plate.
2. The electric microneedle according to claim 1, characterized in that: A limiting column parallel to the second transmission shaft is also provided on the connecting block, a limiting hole is provided on the transmission box body, and one end of the limiting column is passed through the limiting hole to limit the movement trajectory of the second transmission shaft.
3. The electric microneedle according to claim 2, characterized in that: At least two limiting columns are arranged on the connecting block, and all the limiting columns are symmetrically distributed relative to the second transmission shaft.
4. The electric microneedle according to claim 1, characterized in that: A groove is provided on the end surface of the tilting wheel that contacts the first transmission shaft. When the end of the first transmission shaft is located in the groove, the microneedle assembly is in a needle-retracting state; when the end of the first transmission shaft is out of the groove, the microneedle assembly is in a needle-exiting state.
5. The electric microneedle according to claim 4, characterized in that: The groove wall of the groove is in a smooth arc shape, and the end of the first transmission shaft can smoothly detach from the groove along the groove wall of the groove.
6. The electric microneedle according to claim 1, characterized in that: The first elastic body and / or the second elastic body is a spring element.
7. The electric microneedle according to claim 1, characterized in that: It also includes a lamp and a light guide component, the lamp is arranged in the shell, and the lamp is arranged on the ring side of the microneedle component, the light guide component includes a first light guide member and a second light guide member, the first light guide member is embedded in the shell, and one side of the first light guide member is opposite to the lamp, and the other side of the first light guide member is in contact with the second light guide member, and the second light guide member is an annular structure surrounding the microneedle component.