Wearable Microneedle Patch Kit

Abstract

A wearable microneedle patch kit relates to the technical field of microneedle patches. The microneedle patch is attached to the skin by wearing it, and the microneedle patch is evenly pressed. It includes a fixing part, an airbag and an inflation and deflation unit. The fixing part is a rectangular structure. The two opposite walls of the fixing part are provided with straps. One end of the strap is fixedly connected to the fixing part, and the other ends of the two straps are used for detachable connection together. The back of the fixing part has a slot. The back of the microneedle patch has a handle, and the handle is used to plug and connect with the slot. The airbag is located on the back of the fixing part, and the airbags are two independent airbags arranged on the left and right. The inflation and deflation unit is located on the fixing part and is used to inflate and deflate the airbags. The present invention facilitates the attachment of the microneedle patch to the skin surface through the provision of the straps. When the microneedle patch is attached to an uneven skin surface, the inflated airbag can maintain the pressure equal to that of all parts of the skin surface as much as possible.

Description

Technical Field

[0001] The present invention relates to the technical field of microneedle patches, in particular to a wearable microneedle patch kit. Background Art

[0002] Soluble microneedles are arranged on the microneedle patch. The soluble microneedles penetrate the skin to form micron-scale channels, allowing the active ingredients to quickly dissolve and penetrate into the body, thereby achieving drug delivery. The microneedle patch can be provided with an adhesive surface, which is bonded to the skin surface. In order to ensure that the soluble microneedles penetrate the skin and prevent the microneedle patch from falling off the skin surface, the adhesive surface usually has a strong adhesive force. However, the microneedle patch often has to be adhered to the skin surface for several hours. It is laborious to remove the microneedle patch and it is easy to cause skin pain. In addition, after applying the microneedle patch, it is necessary to press the microneedle patch to allow the soluble microneedles to penetrate the skin. Different pressing forces during pressing can easily cause the microneedles to penetrate in a non-vertical state. Summary of the Invention

[0003] The purpose of the present invention is to provide a wearable microneedle patch kit, which can fit the microneedle patch to the skin by wearing it and evenly press the microneedle patch.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a wearable microneedle patch kit, including a fixing part, an airbag and an inflation and deflation unit, the fixing part is a rectangular structure, and the two side walls of the fixing part opposite to each other are provided with straps, one end of the straps is fixedly connected to the fixing part, and the other ends of the two straps are used for detachable connection together; the back of the fixing part has a slot, and the back of the microneedle patch has a handle, and the handle is used to be plugged into the slot; the airbag is located on the back of the fixing part, and the two airbags are independent of each other and arranged on the left and right, and the inflation and deflation unit is located on the fixing part for inflating and deflation of the airbag.

[0005] Furthermore, the other end of one of the binding straps has a hook surface, and the other end of the other binding strap has a hairy surface, and the hook surface is used to bond with the hairy surface.

[0006] Furthermore, a magnet is provided in the slot, and the handle is a metal part.

[0007] Furthermore, the front of the fixing member is provided with a liquid suction groove, and the front of the fixing member is provided with a cover for sealing the liquid suction groove, and the cover is detachably connected to the fixing member.

[0008] Furthermore, one end of the cover is hingedly connected to the front of the fixing member, the other end of the cover is in contact with the inner wall of the liquid suction trough, and a sealing gasket is provided between the cover and the liquid suction trough.

[0009] Furthermore, the inflation and deflation unit includes a battery and an air pump arranged in a fixing member, a wire is provided between the battery and the air pump, and an air tube is provided between the air pump and the airbag.

[0010] Furthermore, the bottom of the liquid-absorbing groove has a needle groove corresponding to the soluble microneedles on the microneedle patch, and the depth of the needle groove is less than the length of the soluble microneedles.

[0011] Furthermore, the inflation and deflation unit includes an air intake pipe and an exhaust pipe, one end of the air intake pipe and the exhaust pipe are both connected to the airbag, and the other ends of the air intake pipe and the exhaust pipe are flush with the front of the fixing part; the air intake pipe is provided with an air intake one-way valve, and the exhaust pipe is provided with an exhaust one-way valve, the setting of the air intake one-way valve allows air to flow only from the air intake pipe side to the airbag side, and the setting of the exhaust one-way valve allows air to flow only from the airbag side to the exhaust pipe side.

[0012] Furthermore, the exhaust one-way valve includes a valve seat, a valve core and a spring. The valve seat is located in the exhaust pipe and is threadedly connected to the exhaust pipe. The center of the valve seat has a through hole, and the through hole includes a threaded hole and a step hole arranged in sequence. The threaded hole is connected to the small hole of the step hole and is located on the side where the other end of the exhaust pipe is located. The conical inner wall of the step hole is a sealing surface; a spring seat is provided in one end of the exhaust pipe, and an air hole is provided on the spring seat. One end of the spring is fixedly connected to the spring seat, and the other end of the spring is fixed with a valve core. Under the action of the spring, the valve core contacts the sealing surface to realize one-way sealing of the exhaust pipe. After the valve seat is rotated to separate it from the valve core, the exhaust pipe is bidirectionally conductive.

[0013] The present invention has the following beneficial effects: The present invention utilizes a strap to secure the fixing device to the body surface during use, thereby avoiding the inconvenience of removal associated with adhesive methods. Furthermore, the airbag, when inflated, compresses the soluble microneedles, allowing them to penetrate the skin. Furthermore, when the microneedle patch is applied to an uneven skin surface, the inflated airbag maintains as close pressure as possible to all points on the skin surface, thereby evenly squeezing the soluble microneedles and ensuring that the soluble microneedles penetrate the skin to the desired depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of the first embodiment of the present invention;

[0015] Figure 2 A top view of the first embodiment of the present invention;

[0016] Figure 3 This is a rear view of the fixing member of the first embodiment of the present invention;

[0017] Figure 4 A top view of the microneedle patch placed on a fixture;

[0018] Figure 5 This is a schematic diagram of the airbag on the fixing part after it is inflated;

[0019] Figure 6 This is a front view of a fixing member according to a second embodiment of the present invention;

[0020] Figure 7 for Figure 3 AA section view in

[0021] Figure 8 for Figure 6 BB cross-sectional view in;

[0022] Figure 9 is a cross-sectional view of a fixing member of embodiment 3;

[0023] Figure 10 This is a schematic diagram of a microneedle patch placed in a liquid-absorbing groove on a fixing member in Example 3;

[0024] Figure 11 for Figure 10 A local enlarged view of point C in FIG;

[0025] Figure 12 This is a front view of a fixing member according to a fourth embodiment of the present invention;

[0026] Figure 13 for Figure 12 DD cross-sectional view in;

[0027] Figure 14 for Figure 12 EE cross-sectional view in;

[0028] Figure 15 for Figure 14 Structural diagram of the exhaust one-way valve in FIG;

[0029] In the figure: 1 fixing part, 11 slot, 12 cover, 121 groove, 13 suction groove, 14 mounting slot, 15 needle slot, 16 intake pipe, 17 exhaust pipe, 171 limit block, 2 strap, 3 air bag, 4 microneedle patch, 41 microneedle, 42 handle, 5 air pump, 51 air pipe, 6 battery, 61 wire, 7 liquid medicine, 8 intake check valve, 9 exhaust check valve, 91 valve seat, 911 threaded hole, 912 sealing surface, 913 positioning end, 92 valve core, 93 spring seat, 931 air hole, 94 spring. DETAILED DESCRIPTION

[0030] like Figures 1 to 15 As shown, the present invention includes a fixing member 1, a strap 2, an airbag 3 and an inflation and deflation unit. The present invention will be described in detail below with reference to the accompanying drawings.

[0031] Example 1:

[0032] like Figures 1 to 4 As shown, the wearable microneedle patch kit includes a fixing member 1, an airbag 3, and an inflation and deflation unit. The fixing member 1 is a rectangular structure made of plastic. Straps 2 are provided on the two opposing walls of the fixing member 1. One end of the strap 2 is fixedly connected to the fixing member 1, and the other ends of the two straps 2 are used for detachable connection. Specifically, the other end of one strap 2 has a hook surface, and the other end of the other strap 2 has a hair surface. The hook surface is used to bond with the hair surface, thereby achieving detachable connection between the two straps 2. The other ends of the two straps 2 can also be plugged together.

[0033] like Figure 3 As shown, the back of the fixing member 1 has a circular slot 11, as shown in FIG. Figure 4 As shown, the back of the microneedle patch 4 has a handle 42, and the handle 42 is used to connect with the slot 11. The front of the microneedle patch 4 has soluble microneedles 41. The setting of the handle 42, on the one hand, facilitates the holding of the microneedle patch 4, and on the other hand, facilitates the assembly between the fixing part 1 and the microneedle patch 4. The microneedle patch 4 can also be installed by magnetic attraction. In this case, there is a magnet in the slot 11, and the handle 42 is a metal part. After the handle 42 is inserted into the slot 11, it is adsorbed together with the magnet in the slot 11. As shown Figure 3 As shown, the airbag 3 is located on the back of the fixing member 1, and the airbags 3 are two independent airbags arranged on the left and right sides. The inflation and deflation unit is located on the fixing member 1 for inflating and deflation of the airbags 3. Figure 5 As shown, after the inflation and deflation unit inflates the airbag 3, the airbag 3 expands and a portion of the airbag 3 extends out of the fixing member 1. Figure 7 As shown, the inflation / deflation unit includes a battery 6 and an air pump 2, which are mounted within a fixture 1. A wire 61 is connected between the battery 6 and the air pump 5, and an air tube 51 is provided between the air pump 5 and the airbag 3. The battery 6 supplies power to the air pump 5 via the wire 61, and the air pump 5 inflates and deflates the airbag 3 via the air tube 51. To facilitate installation of the battery 6 and air pump 5, a mounting slot 14 is provided within the fixture 1, and both the air pump 5 and the battery 6 are positioned within the mounting slot 14.

[0034] The following describes the method of using the first embodiment of the present invention:

[0035] (1) Insert the handle 42 on the back of the microneedle patch 4 into the slot 11, stick the front of the microneedle patch 4 to the surface of the skin to be medicated, and connect the other ends of the two straps together;

[0036] (2) Inflate the airbag. When the airbag is inflated, it will squeeze the microneedle patch together with the skin surface. Depending on the flatness of the skin surface, the shape of the airbag changes after inflation to maintain pressure balance between the airbag and the skin surface.

[0037] Example 2:

[0038] like Figure 6 、 Figure 8 As shown, the difference between the second embodiment of the present invention and the first embodiment is that the fixing member 1 of the second embodiment is provided with a liquid suction groove 13, as shown in FIG. Figure 8 As shown, the front of the fixing member 1 has a liquid suction groove 13, and the front of the fixing member 1 has a cover 12 that seals the liquid suction groove 13. The cover 12 is detachably connected to the fixing member 1. One end of the cover 12 is hinged to the front of the fixing member 1, and the other end of the cover 12 contacts the inner wall of the liquid suction groove 13. A sealing gasket is provided between the cover 12 and the liquid suction groove 13 to ensure sealing. The provision of the liquid suction groove 13 is used to facilitate the use of the capillary principle to allow the drug solution to enter the soluble microneedles 41. During use, the cover 12 is opened, and then the fixing member 1 is laid flat with the front side facing up. The drug solution is dripped into the liquid suction groove 13. The microneedle patch 4 is placed in the liquid suction groove 13 by holding the handle 42, with the soluble microneedles 41 of the microneedle patch 4 facing downward. The drug solution will be sucked into the soluble microneedles 41. After the drug solution enters the soluble microneedles 41, the microneedle patch 4 is removed and the cover 12 is replaced. The cover 12 is provided with a groove 121 , which facilitates the opening of the cover 12 .

[0039] Example 3:

[0040] like Figures 9 to 11 As shown, the difference between the third embodiment of the present invention and the second embodiment is that in the third embodiment, a needle groove 15 corresponding to the soluble microneedle 41 on the microneedle patch 4 is provided at the bottom of the liquid suction groove 13, and the depth of the needle groove 15 is less than the length of the soluble microneedle 41. Figure 11 As shown, when adding the drug solution 7 to the soluble microneedles 41, the microneedle patch 4 is placed in the liquid suction groove 13. The size of the liquid suction groove 13 is the same as that of the microneedle patch 4. At this time, the soluble microneedles 41 on the back of the microneedle patch 4 extend into the corresponding needle groove 15. A needle groove 15 is set in the liquid suction groove 13. When the drug solution is added to the liquid suction groove 13, the drug solution first flows into the needle groove 15. After the drug solution in the needle groove 15 is full, the drug solution accumulates in the liquid suction groove 13. When the drug solution is absorbed, as the drug solution enters the soluble microneedles 41, the drug solution in the liquid suction groove 13 gradually decreases until only the needle groove 15 contains the drug solution. Finally, the drug solution in the needle groove 15 is absorbed into the soluble microneedles 41. The provision of the needle groove 15 facilitates the concentration of the drug solution and the absorption of the soluble microneedles.

[0041] Example 4:

[0042] like Figures 12 to 15 As shown, the difference between the fourth embodiment of the present invention and the first embodiment is that the inflation and deflation unit includes an air inlet pipe 16 and an exhaust pipe 17, one end of the air inlet pipe 16 and the exhaust pipe 17 are both connected to the airbag 3, and the other end of the air inlet pipe 16 and the exhaust pipe 17 are flush with the front of the fixing member 1. Figure 13As shown, the intake pipe 16 is provided with an intake check valve 8, as shown in FIG. Figure 14 As shown, the exhaust pipe 17 is provided with an exhaust check valve 9, and the setting of the intake check valve 8 allows air to flow only from the intake pipe 16 side to the airbag 3 side, and the setting of the exhaust check valve 9 allows air to flow only from the airbag 3 side to the exhaust pipe 17 side. Figure 15 As shown, the exhaust one-way valve 9 includes a valve seat 91, a valve core 92 and a spring 94. The valve seat 91 is located in the exhaust pipe 17 and is threadedly connected to the exhaust pipe 17. The valve seat 91 has a through hole in the center. The through hole includes a threaded hole 911 and a stepped hole arranged in sequence. The threaded hole 911 is connected to the small hole of the stepped hole and is located on the side where the other end of the exhaust pipe 17 is located. The tapered inner wall of the stepped hole is a sealing surface 912. A spring seat 93 is provided in one end of the exhaust pipe 17. The spring seat 93 has an air hole 931. One end of the spring 94 is fixedly connected to the spring seat 93. The other end of the spring 94 is fixed with the valve core 92. Under the action of the spring 94, the valve core 92 contacts the sealing surface 912 to achieve a one-way seal on the exhaust pipe 17. After the valve seat 91 is rotated to separate it from the valve core 92, the exhaust pipe 17 is bidirectionally conductive. As shown Figure 15 As shown, a threaded hole 911 is located at one end of the valve seat 91, and a large hole of the stepped hole is located at the other end of the valve seat 91 and extends through the end surface of the valve seat 91. The other end of the valve seat 91 serves as a positioning end 913. A stopper 171 is provided on the inner wall of the exhaust pipe 17. After the valve seat 91 is rotated so that the positioning end 913 at the other end of the valve seat 91 contacts the stopper 171, the spherical valve core 92 contacts the sealing surface 912 under the action of the spring 94, achieving a one-way seal on the exhaust pipe 17. Rotating the valve seat 91 causes the valve seat 91 to move away from the spring 94 until the valve core 92 separates from the sealing surface 91, at which point the exhaust pipe 17 is bidirectionally conductive. During use, the end of the screw can be screwed into the threaded hole 911 to connect the screw to the valve seat 91. The valve seat 91 can then be driven to move within the exhaust pipe 17 by rotating the screw.

[0043] The present invention uses a strap to bind the fixings to the body surface during use, thus avoiding the inconvenience of removal associated with adhesive methods. The airbag, when inflated, squeezes the soluble microneedles, allowing them to penetrate the skin. Furthermore, when the microneedle patch is applied to uneven skin surfaces, the inflated airbag maintains as close pressure as possible to all points on the skin surface, thereby evenly squeezing the soluble microneedles and ensuring they penetrate the skin to the desired depth.

Claims

1. Wearable microneedle patch kit, characterized by: The airbag is a device for distributing air to a user, wherein the ... The setting allows air to flow only from the intake pipe side to the airbag side, and the setting of the exhaust one-way valve allows air to flow only from the airbag side to the exhaust pipe side; the exhaust one-way valve includes a valve seat, a valve core and a spring, the valve seat is located in the exhaust pipe and is threadedly connected to the exhaust pipe, the center of the valve seat has a through hole, the through hole includes a threaded hole and a step hole arranged in sequence, the threaded hole is connected to the small hole of the step hole and is located on the side where the other end of the exhaust pipe is located, and the conical inner wall of the step hole is a sealing surface; a spring seat is provided in one end of the exhaust pipe, the spring seat has an air hole, one end of the spring is fixedly connected to the spring seat, and the other end of the spring is fixed with a valve core, and under the action of the spring, the valve core contacts the sealing surface to achieve one-way sealing of the exhaust pipe. After the valve seat is rotated to separate it from the valve core, the exhaust pipe is bidirectionally conductive.

2. The wearable microneedle patch kit according to claim 1, characterized in that: The other end of one of the binding straps has a hook surface, and the other end of the other binding strap has a hairy surface, and the hook surface is used to bond with the hairy surface.

3. The wearable microneedle patch kit according to claim 1, characterized in that: A magnet is arranged in the slot, and the handle is a metal part.

4. The wearable microneedle patch kit according to claim 1, characterized in that: The front of the fixing piece is provided with a liquid suction groove, and the front of the fixing piece is provided with a sealing cover for sealing the liquid suction groove, and the sealing cover is detachably connected to the fixing piece.

5. The wearable microneedle patch kit according to claim 4, characterized in that: One end of the cover is hinged to the front of the fixing piece, the other end of the cover contacts the inner wall of the liquid suction trough, and a sealing gasket is provided between the cover and the liquid suction trough.

6. The wearable microneedle patch kit according to claim 1, characterized in that: The inflation and deflation unit includes a battery and an air pump arranged in a fixing member. A wire is provided between the battery and the air pump, and an air pipe is provided between the air pump and the airbag.

7. The wearable microneedle patch kit according to claim 4, characterized in that: The bottom of the liquid-absorbing groove has a needle groove corresponding to the soluble microneedles on the microneedle patch, and the depth of the needle groove is less than the length of the soluble microneedles.

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