A device for micro-needling

Abstract

The application relates to a micro-needle operation device. The micro-needle operation device comprises a roller micro-needle, an outer conveying pipeline and a fluid driving mechanism. The roller micro-needle comprises a micro-needle roller and a control handle. The micro-needle roller comprises an outer roller and a mandrel. The peripheral wall of the outer roller is provided with a plurality of hollow micro-needle groups. The middle part of the mandrel is provided with a supporting part matched with the inner wall surface of the outer roller and supporting the outer roller. The supporting part is provided with a preset number of sub-liquid channels. When each hollow micro-needle group rotates to a set position, the internal channels of the hollow micro-needles are respectively communicated with the corresponding sub-liquid channels. The mandrel is further provided with a main liquid channel communicated with each sub-liquid channel. The outer conveying pipeline comprises an elastic pipeline which can be deformed to store and release energy. The micro-needle operation device has high injection efficiency and can solve the problem that the hollow micro-needles are prone to be blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of medical cosmetic equipment, and in particular to a device for performing microneedle surgery. Background Art

[0002] Microneedle surgery is a medical technology that uses tiny needle-like instruments to implement mechanical or physical, minimally invasive stimulation on the skin and soft tissue in order to achieve therapeutic or cosmetic effects. It can be accompanied by the simultaneous or step-by-step administration of drugs or functional ingredients, with the help of microneedles to improve their transdermal / absorption efficiency, thereby enhancing the therapeutic or cosmetic effects.

[0003] Microneedles typically have a height of 10 to 2000 microns and a maximum diameter of 10 to 50 microns. The length, size, and shape of microneedles can be individually designed based on therapeutic or cosmetic needs. Of all microneedle types, hollow microneedles possess the highest drug-carrying capacity due to their hollow structure. However, due to the densely packed dermis, hollow microneedles can easily clog the needle holes when puncturing the skin, affecting the release rate of drugs or active ingredients. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a device for microneedle surgery that overcomes the above problems or at least partially solves the above problems.

[0005] The microneedle surgery device comprises:

[0006] A roller-type microneedle comprises a microneedle roller and a manipulation handle; the microneedle roller comprises an outer drum, the peripheral wall of the outer drum being provided with a plurality of hollow microneedle groups radially distributed with the central axis of the outer drum as the center, each hollow microneedle group being composed of the same preset number of hollow microneedles, and the hollow microneedles belonging to the same hollow microneedle group being located on the same plane; the microneedle roller further comprises a spindle, at least one end of which is fixedly connected to the manipulation handle, a support portion being formed in the middle of the spindle that cooperates with the inner wall surface of the outer drum and supports the outer drum; a preset number of sub-liquid channels are formed on the support portion, and when each hollow microneedle group is rotated to a set position, the internal channels of its hollow microneedles are respectively connected to the corresponding sub-liquid channels; the spindle further comprises a main liquid channel connected to each sub-liquid channel;

[0007] an external delivery conduit, the external delivery conduit being used to guide a liquid containing a drug and / or an effective ingredient to flow from a liquid supply source to a liquid inlet of the main liquid channel;

[0008] a fluid driving mechanism, the fluid driving mechanism being used to cause liquid from a liquid supply source to flow through an external delivery pipe to a liquid inlet of the main liquid channel;

[0009] The outer delivery pipe includes an elastic pipe, which is used to deform to store energy when the fluid driving mechanism causes the liquid to flow and the two adjacent hollow microneedle groups rotate to the set positions in sequence, and restore the shape to release energy when the latter hollow microneedle group rotates to the set position.

[0010] In one embodiment, the fluid drive mechanism is a pump.

[0011] In one embodiment, the elastic tube is a silicone elastic tube.

[0012] In one embodiment, an annular seal is arranged on the periphery of the liquid outlet of each sub-liquid channel to prevent liquid from leaking from the gap between the outer drum and the supporting portion.

[0013] In one embodiment, the annular seal is an annular polyurethane seal.

[0014] In one embodiment, the microneedle roller further includes two end covers, which are respectively arranged on both ends of the outer drum and fixedly connected to the spindle member to constrain the axial movement of the outer drum.

[0015] In one embodiment, the microneedle surgery device further includes a control circuit, which is electrically connected to the fluid driving mechanism and is used to control the output power of the fluid driving mechanism.

[0016] The present invention is a device for microneedle surgery. It uses an elastic pipe to deform to store energy when a fluid driving mechanism causes liquid to flow and two adjacent hollow microneedle groups rotate to set positions in sequence. The elastic pipe then recovers its shape to release energy when the latter hollow microneedle group rotates to the set position. Therefore, during the surgery, the liquid containing drugs and / or effective ingredients enters the human body in a pulsed manner, with high injection efficiency, and can solve the problem of easy clogging of hollow microneedles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0018] Figure 1 1 is a schematic structural diagram of an exemplary embodiment of a device for microneedle surgery according to the present invention;

[0019] Figure 2 for Figure 1Schematic diagram of the structure of the microneedle roller

[0020] Explanation of the accompanying drawings: 1. External delivery pipeline; 2. Fluid driving mechanism; 3. Control handle; 4. External roller; 5. Hollow microneedle; 6. Central shaft; 7. Support part; 8. Sub-liquid channel; 9. Annular seal; 10. Main liquid channel; 11. Liquid supply source; 12. Elastic pipe; 13. End cover; 14. Control circuit. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail, with examples of the embodiments shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but are not to be construed as limiting the present invention. Those skilled in the art may make various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents.

[0022] The terms "center", "longitudinal", "lateral", "length", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like mentioned or may be mentioned in the description of the present invention indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Furthermore, the terms "include," "comprising," and any variations thereof are intended to cover non-exclusive inclusions.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] A device for microneedle surgery according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0026] See also Figure 1According to an embodiment of the present invention, a device for microneedle surgery includes a roller-type microneedle, an external delivery channel 1, and a fluid drive mechanism 2. When the roller-type microneedle rolls on the skin, it can form many fine channels on the skin, stimulate the regeneration of collagen in the skin, and effectively promote skin metabolism.

[0027] Specifically, the roller-type microneedle comprises a microneedle roller and a control handle 3. Figure 2 As shown, the microneedle roller includes an outer drum 4, the peripheral wall of which is configured with a plurality of hollow microneedle groups radially distributed around the central axis of the outer drum 4. The number of hollow microneedle groups can be determined based on the outer diameter of the outer drum 4 and the specific requirements of the treatment, and this embodiment does not limit this. Each hollow microneedle group is composed of the same preset number of hollow microneedles. Similarly, the number of hollow microneedles 5 in the same hollow microneedle group can be determined based on the width of the outer drum 4 and the specific requirements of the treatment, and this embodiment does not limit this. The hollow microneedles 5 belonging to the same hollow microneedle group are located on the same plane, so that during the treatment, the hollow microneedles 5 of the same hollow microneedle group can act on the skin simultaneously.

[0028] The microneedle roller also includes a spindle 6, one or both ends of which are fixedly connected to the control handle 3. A support portion 7 is formed in the middle of the spindle 6, which cooperates with the inner wall surface of the outer roller 4 and supports the outer roller 4. The outer roller 4 can rotate relative to the support portion 7. The support portion 7 also defines a preset number of sub-liquid channels 8, i.e., the number of sub-liquid channels 8 is the same as the number of hollow microneedles 5 within a hollow microneedle group. When each hollow microneedle group is rotated to a set position, the internal channels of its hollow microneedles 5 are connected to the corresponding sub-liquid channels 8.

[0029] Preferably, an annular seal 9, such as an annular polyurethane seal, is disposed around the liquid outlet of each sub-liquid channel 8 to prevent liquid leakage from the gap between the outer drum 4 and the support portion 7. Each annular seal 9 can be mounted in a mounting groove formed by a concave outer wall of the support portion 7 and located around the liquid outlet of the corresponding sub-liquid channel 8.

[0030] The spindle 6 is also formed with a main liquid channel 10 that is connected to each sub-liquid channel 8. After the liquid reaches the main liquid channel 10, it enters each sub-liquid channel 8 and finally enters the human body through the internal channel of the corresponding hollow microneedle 5 to achieve the delivery of drugs or effective ingredients. The liquid inlet of the main liquid channel 10 can be set at the end of the spindle 6 that extends out of the control handle 3, referring to Figure 2 From this perspective, the liquid inlet of the main liquid channel 10 is arranged at the right end of the spindle member 6.

[0031] Return now Figure 1The external delivery conduit 1 is used to guide a liquid containing a drug and / or an effective ingredient from a liquid supply source 11 to flow to the liquid inlet of the main liquid channel 10. For example, the external delivery conduit 1 is used to guide a liquid containing one or more of glycyrrhizin, MT metallothionein, and tranexamic acid from the liquid supply source 11 to flow to the liquid inlet of the main liquid channel 10. In one embodiment, the microneedle surgery device may further include a liquid supply source 11, which may be a container loaded with a liquid containing a drug and / or an effective ingredient.

[0032] The fluid driving mechanism 2 is used to cause the liquid from the liquid supply source 11 to flow to the liquid inlet of the main liquid channel 10 through the external delivery pipe 1. The fluid driving mechanism 2 can be a pump, which can be arranged on the external delivery pipe 1 or at the liquid inlet end of the external delivery pipe 1.

[0033] The external delivery conduit 1 includes an elastic conduit 12. The elastic conduit 12 is configured to deform to store energy as the fluid drive mechanism 2 causes the liquid to flow and two adjacent hollow microneedle groups to rotate sequentially to a set position. The elastic conduit 12 then returns to its original shape to release energy when the next hollow microneedle group rotates to the set position. This allows the liquid to enter the body in a pulsed manner during the procedure, resulting in high injection efficiency and addressing the issue of hollow microneedles being prone to clogging. The external delivery conduit 1 can be entirely composed of the elastic conduit 12, or a section of the elastic conduit 12 can be provided. Preferably, the elastic conduit 12 is a silicone elastic conduit 12.

[0034] In one embodiment, the microneedle roller further includes two end covers 13 , which are respectively arranged at both ends of the outer drum 4 and fixedly connected to the spindle 6 , for restricting the axial movement of the outer drum 4 .

[0035] In one embodiment, the microneedle surgery device further includes a control circuit 14, which may be a single-chip microcomputer. The control circuit 14 is electrically connected to the fluid drive mechanism 2 and is used to control the output power of the fluid drive mechanism 2, thereby adjusting the amount of liquid injected during the procedure.

[0036] In this embodiment, the elastic tube 12 is used to deform to store energy when the fluid driving mechanism 2 causes the liquid to flow and the two adjacent hollow microneedle groups rotate to the set positions in sequence, and restores the shape to release energy when the latter hollow microneedle group rotates to the set position. Therefore, during the operation, the liquid enters the human body in a pulsed manner, the injection efficiency is high, and the problem of easy clogging of hollow microneedles can be solved.

Claims

1. A device for microneedle surgery, characterized in that: include: A roller-type microneedle comprises a microneedle roller and a manipulation handle; the microneedle roller comprises an outer drum, the peripheral wall of the outer drum being provided with a plurality of hollow microneedle groups radially distributed with the central axis of the outer drum as the center, each hollow microneedle group being composed of the same preset number of hollow microneedles, and the hollow microneedles belonging to the same hollow microneedle group being located on the same plane; the microneedle roller further comprises a spindle, at least one end of which is fixedly connected to the manipulation handle, a support portion being formed in the middle of the spindle that cooperates with the inner wall surface of the outer drum and supports the outer drum; a preset number of sub-liquid channels are formed on the support portion, and when each hollow microneedle group is rotated to a set position, the internal channels of its hollow microneedles are respectively connected to the corresponding sub-liquid channels; the spindle further comprises a main liquid channel connected to each sub-liquid channel; an external delivery conduit, the external delivery conduit being used to guide a liquid containing a drug and / or an effective ingredient to flow from a liquid supply source to a liquid inlet of the main liquid channel; a fluid driving mechanism, the fluid driving mechanism being used to cause liquid from a liquid supply source to flow through an external delivery pipe to a liquid inlet of the main liquid channel; The outer delivery pipe includes an elastic pipe, which is used to deform to store energy when the fluid driving mechanism causes the liquid to flow and the two adjacent hollow microneedle groups rotate to the set positions in sequence, and restore the shape to release energy when the latter hollow microneedle group rotates to the set position.

2. The microneedle surgery device according to claim 1, wherein: The fluid driving mechanism is a pump.

3. The microneedle surgery device according to claim 1, wherein: The elastic pipe is a silicone elastic pipe.

4. The microneedle surgery device according to claim 1, wherein: An annular sealing member is arranged on the periphery of the liquid outlet of each sub-liquid channel to prevent liquid from leaking from the gap between the outer drum and the supporting portion.

5. The microneedle surgery device according to claim 4, characterized in that: The annular seal is an annular polyurethane seal.

6. The microneedle surgery device according to any one of claims 1 to 5, characterized in that: The microneedle roller further includes two end covers, which are respectively arranged on both ends of the outer drum and fixedly connected to the spindle member, and are used to restrict the axial movement of the outer drum.

7. The microneedle surgery device according to any one of claims 1 to 5, characterized in that: It also includes a control circuit, which is electrically connected to the fluid driving mechanism and is used to control the output power of the fluid driving mechanism.

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