Micro-needle anesthesia device

Abstract

The invention belongs to the technical field of medical anesthesia, and particularly relates to a micro-needle anesthesia device which comprises a shell, a medicine bag, a micro-needle, a medicine storage sponge and a pressing plate, a mounting cavity is formed in the shell, a pressing hole is located in a pressing face and is opposite to a through hole, the pressing plate penetrates through the pressing hole, the outer edge of the pressing plate is connected with the inner wall of the pressing hole, and the medicine bag is arranged in the mounting cavity. When the pressing plate is pressed, the pressing plate can sink and deform towards the medicine storage sponge, when the medicine bag is extruded, anesthetic medicine can be input into the mounting cavity through the medicine inlet hole, the medicine storage sponge is located in the mounting cavity, the medicine storage sponge is provided with a medicine storage gap, and the medicine storage sponge can suck the anesthetic medicine in the mounting cavity into the medicine storage gap. The side, opposite to the through hole, of the medicine storage sponge makes contact with the pressing plate, the microneedle is connected with the medicine storage sponge, the microneedle is inserted into the through hole, the microneedle is provided with a medicine feeding channel, and the medicine feeding channel is communicated with the medicine storage gap. The anesthetic can be pushed into the subcutaneous tissue of a patient only by pressing the pressing plate without depending on a medicine conveying pump.

Description

Technical Field

[0001] The invention belongs to the technical field of medical anesthesia, and in particular relates to a microneedle anesthesia device. Background Art

[0002] The microneedle anesthesia device is a method of anesthesia using microneedle technology. It stimulates the skin through microneedles to promote the absorption of local anesthetics, thereby achieving painless or pain-reducing effects.

[0003] An existing microneedle anesthesia device includes a shell, a drug delivery pump and a microneedle. A drug delivery cavity is provided in the shell, and a drug delivery hole is provided at the bottom of the shell. The microneedle and the shell are connected, and the drug delivery channel inside the microneedle is connected to the drug delivery hole. The drug delivery pump is connected to the drug delivery cavity through a pipeline. When in use, the microneedle is inserted into the patient's skin, and the drug delivery pump pumps anesthetic drugs into the drug delivery cavity through the pipeline. Under the push of the drug delivery pump, the anesthetic drugs will enter the patient's subcutaneous tissue through the drug delivery hole and the drug delivery channel inside the microneedle to anesthetize the patient's position.

[0004] However, the existing microneedle anesthesia device needs to rely on a drug delivery pump to push the anesthetic drug into the patient's subcutaneous tissue, which is not convenient to carry. When the drug delivery pump is damaged, the microneedle anesthesia device fails. Summary of the invention

[0005] The technical problem to be solved by the present invention is: to provide a microneedle anesthesia device in view of the problem that the existing microneedle anesthesia device needs to rely on a drug delivery pump to push the anesthetic drug into the subcutaneous tissue of the patient.

[0006] In order to solve the above technical problems, the embodiment of the present invention provides a microneedle anesthesia device, including a shell, a medicine capsule, a microneedle, a medicine storage sponge and a pressing plate, wherein the shell is provided with a mounting cavity, the shell is provided with a pressing hole, a medicine feeding hole and a through hole connected with the mounting cavity, the shell has a pressing surface, the pressing hole is located on the pressing surface, the pressing hole and the through hole are arranged opposite to each other, the pressing plate is penetrated in the pressing hole, the outer edge of the pressing plate is connected to the inner wall of the pressing hole, and the pressing plate can be deformed toward the medicine storage sponge when pressed; When the medicine bag is squeezed, the anesthetic drug can be input into the installation cavity through the drug inlet hole. The drug storage sponge is installed in the installation cavity. The drug storage sponge has a drug storage gap. The drug storage sponge can absorb the anesthetic drug in the installation cavity into the drug storage gap. The side of the drug storage sponge facing away from the through hole is in contact with the pressing plate. The microneedle is connected to a side of the drug storage sponge facing the through hole, the microneedle is inserted into the through hole, and the microneedle is provided with a drug administration channel, which is communicated with the drug storage gap.

[0007] Optionally, the thickness of the pressing plate is smaller than the depth of the pressing hole.

[0008] Optionally, a side of the pressing plate facing the medicine storing sponge is flush with a cavity top wall of the mounting cavity.

[0009] Optionally, the microneedle is provided in plurality, the number of the through holes is consistent with the number of the microneedles, and the microneedles correspond to the through holes one by one.

[0010] Optionally, it also includes a base plate, which is connected to the side of the drug storage sponge facing the through hole, and the microneedle is connected to the side of the base plate facing away from the drug storage sponge, and the base plate is provided with a base channel connected to the drug administration channel and the drug storage gap.

[0011] Optionally, a mounting groove is provided on the peripheral outer wall surface of the shell, the medicine inlet hole is arranged on the bottom wall of the mounting groove, and the medicine bag is installed in the mounting groove.

[0012] Optionally, it further comprises a drug inlet tube, which is passed through the drug inlet hole and connected between the drug bag and the drug storage sponge.

[0013] Optionally, sandpaper is also included, and the sandpaper is arranged on the outer wall surface of the shell, and the sandpaper is used for polishing human skin.

[0014] Optionally, a removable protective film is provided on a side of the sandpaper facing away from the housing.

[0015] Optionally, a waterproof layer is provided on the side wall of the installation cavity.

[0016] According to the microneedle anesthesia device of the embodiment of the present invention, the anesthetic drug in the drug bag can be input into the installation cavity by squeezing the drug bag, and the drug storage sponge can absorb the anesthetic drug in the installation cavity. By pressing the pressing plate in the direction close to the through hole, the pressing plate can push the drug storage sponge and the microneedle downward. When the microneedle passes through the through hole and contacts the patient's skin, the microneedle can be inserted into the patient's subcutaneous tissue by continuing to press the pressing plate. When the pressing plate is pressed, the drug storage sponge is squeezed, and the anesthetic drug in the drug storage sponge will enter the drug delivery channel of the microneedle, and then enter the patient's subcutaneous tissue through the drug delivery channel. Compared with the prior art, there is no need to rely on a drug delivery pump. The anesthetic drug can be pushed into the patient's subcutaneous tissue only by pressing the pressing plate. The operation is simple and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the structure of a microneedle anesthesia device provided in one embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the decomposition of Figure 3 Schematic diagram of the assembly of microneedles and base plate; Figure 4 It is a schematic diagram of the structure of the lower cover.

[0019] The figure numbers in the specification are as follows: 1. Shell; 2. Upper shell; 3. Installation cavity; 4. Installation groove; 5. Drug inlet hole; 6. Pressing hole; 7. Protective film; 8. Sandpaper; 9. Pressing plate; 10. Drug storage sponge; 11. Water-proof plate; 12. Avoidance hole; 13. Drug capsule; 14. Drug inlet tube; 15. Base plate; 16. Base channel; 17. Microneedle; 18. Lower cover plate; 19. Through hole. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides a microneedle anesthesia device, including a shell 1, a medicine capsule 13, a microneedle 17, a drug storage sponge 10 and a pressing plate 9, wherein the shell 1 is provided with a mounting cavity 3, and the shell 1 is provided with a pressing hole 6, a drug feeding hole 5 and a through hole 19 connected with the mounting cavity 3, the shell 1 has a pressing surface, the pressing hole 6 is located on the pressing surface, the pressing hole 6 and the through hole 19 are arranged oppositely, the pressing plate 9 is penetrated in the pressing hole 6, the outer edge of the pressing plate 9 is connected to the inner wall of the pressing hole 6, and the pressing plate 9 can be concavely deformed toward the drug storage sponge 10 when pressed; When the medicine bag 13 is squeezed, the anesthetic drug can be input into the installation cavity 3 through the drug inlet hole 5. The drug storage sponge 10 is installed in the installation cavity 3. The drug storage sponge 10 has a drug storage gap. The drug storage sponge 10 can absorb the anesthetic drug in the installation cavity 3 into the drug storage gap. The side of the drug storage sponge 10 facing away from the through hole 19 is in contact with the pressing plate 9.

[0024] The microneedle 17 is connected to the side of the drug storage sponge 10 facing the through hole 19 , and the microneedle 17 is inserted into the through hole 19 . The microneedle 17 is provided with a drug administration channel, and the drug administration channel is communicated with the drug storage gap.

[0025] Specifically, the microneedle anesthesia device includes a shell 1, a medicine bag 13, a microneedle 17, a medicine storage sponge 10 and a pressing plate 9. The shell 1 is provided with a mounting cavity 3, and the shell 1 is provided with a pressing hole 6, a medicine feed hole 5 and a through hole 19 connected to the mounting cavity 3. The shell 1 has a pressing surface, the pressing hole 6 is located on the pressing surface, the pressing hole 6 and the through hole 19 are arranged opposite to each other, the pressing plate 9 is penetrated by the pressing hole 6, the outer edge of the pressing plate 9 is connected to the inner wall of the pressing hole 6, and the pressing plate 9 is softer in texture than the shell 1.

[0026] When the medicine bag 13 is squeezed, the medicine bag 13 is used to input anesthetic drugs into the installation cavity 3 through the drug inlet hole 5. The drug storage sponge 10 is installed in the installation cavity 3. The drug storage sponge 10 has a drug storage gap. The drug storage sponge 10 can absorb the anesthetic drugs in the installation cavity 3 into the drug storage gap. The side of the drug storage sponge 10 facing away from the through hole 19 is in contact with the pressing plate 9.

[0027] The microneedle 17 is connected to the side of the drug storage sponge 10 facing the through hole 19, and the microneedle 17 is inserted in the through hole 19. The microneedle 17 is provided with a drug administration channel, and the drug administration channel is connected with the drug storage gap. By squeezing the drug capsule 13, the anesthetic drug in the drug capsule 13 can be input into the mounting cavity 3, and the drug storage sponge 10 can absorb the anesthetic drug in the mounting cavity 3. By pressing the pressing plate 9 in the direction close to the through hole 19, the pressing plate 9 can push the drug storage sponge 10 and the microneedle 17 downward. When the microneedle 17 passes through the through hole 19 and contacts the patient's skin, the pressing plate 9 is continued to be pressed to pierce the microneedle 17 into the patient's subcutaneous tissue. When the pressing plate 9 is pressed, the drug storage sponge 10 is squeezed, and the anesthetic drug in the drug storage sponge 10 will enter the drug administration channel of the microneedle 17, and then enter the patient's subcutaneous tissue through the drug administration channel. Compared with the prior art, there is no need to rely on a drug delivery pump. The anesthetic drug can be pushed into the patient's subcutaneous tissue only by pressing the pressing plate. The operation is simple and easy to carry.

[0028] In this embodiment, the shell 1 is surrounded by a peripheral side wall, an upper top wall and a lower bottom wall, the pressing surface is arranged on the upper top wall of the shell 1, the outer wall surface of the upper top wall forms the pressing surface, a pressing hole 6 is provided on the pressing surface, the size of the pressing hole 6 is smaller than the size of the pressing surface, the pressing hole 6 is formed by the upper end opening of the mounting cavity 3, the pressing hole 6 is rectangular, the pressing plate 9 is installed in the pressing hole 6, the specific material of the pressing plate 9 is silicone material, the specific material of the shell 1 is hard plastic material, the texture of the pressing plate 9 is softer than that of the shell 1, the pressing plate 9 and the shell 1 are integrally injection molded, thereby improving the connection strength between the pressing plate 9 and the pressing hole 6, and preventing the pressing plate 9 from escaping from the pressing air, when the pressing plate 9 is pressed, the pressing plate 9 can be deformed in the direction close to the medicine storage sponge 10 in the mounting cavity 3, and when the pressing plate 9 is released, the pressing plate 9 can restore the deformation.

[0029] The medicine storage sponge 10 is installed in the installation cavity 3. The medicine capsule 13 is an extrusion structure. Anesthetic drugs are stored in the medicine capsule 13. When the medicine capsule 13 is pressed, the anesthetic drugs in the medicine capsule 13 will enter the installation cavity 3 through the medicine inlet hole 5. The medicine capsule 13 inputs anesthetic drugs into the installation cavity 3 through the medicine inlet hole 5. After the anesthetic drugs enter the installation cavity 3, the medicine storage sponge 10 in the installation cavity 3 will first absorb the anesthetic drugs in the installation cavity 3 into its own medicine storage gap. In this embodiment, the medicine storage gap refers to the gap channel in the medicine storage sponge 10. The microneedle 17 is connected to the bottom of the medicine storage sponge 10. The end of the microneedle 17 away from the medicine storage sponge 10 is inserted into the through hole 19, but does not extend out of the through hole 19. When the medical staff presses the pressing plate 9, the pressing The pressing plate 9 deforms toward the patient's skin, thereby forcing the drug storage sponge 10 and the microneedle 17 to move toward the patient. When the microneedle 17 extends from the through hole 19, the microneedle 17 will rest against the patient's skin. When the pressing plate 9 continues to be pressed, the pressing plate 9 will squeeze the drug storage sponge 10. While the drug storage sponge 10 is squeezed, the drug storage sponge 10 will continue to move toward the patient's skin with the microneedle 17, thereby allowing the microneedle 17 to penetrate into the patient's subcutaneous tissue. Since the pressure applied by the medical staff to the drug storage sponge 10 is greater than the pressure in the patient's subcutaneous tissue, the anesthetic in the drug storage sponge 10 will enter the drug delivery channel of the microneedle 17, and then enter the patient's subcutaneous tissue through the drug delivery channel of the microneedle 17, thereby having an anesthetic effect on the patient.

[0030] According to the microneedle anesthesia device of the embodiment of the present invention, by squeezing the medicine bag 13, the anesthetic drug in the medicine bag 13 can be input into the installation cavity 3, and the drug storage sponge 10 can absorb the anesthetic drug in the installation cavity 3. By pressing the pressing plate 9 in the direction close to the through hole 19, the pressing plate 9 can push the drug storage sponge 10 and the microneedle 17 downward. When the microneedle 17 passes through the through hole 19 and contacts the patient's skin, the pressing plate 9 is continued to be pressed to allow the microneedle 17 to be inserted into the patient's subcutaneous tissue. When the pressing plate 9 is pressed, the drug storage sponge 10 is squeezed, and the anesthetic drug in the drug storage sponge 10 will enter the drug delivery channel of the microneedle 17, and then enter the patient's subcutaneous tissue through the drug delivery channel. Compared with the prior art, there is no need to rely on a drug delivery pump. The anesthetic drug can be pushed into the patient's subcutaneous tissue only by pressing the pressing plate. The operation is simple and easy to carry.

[0031] In one embodiment, the thickness of the pressing plate 9 is smaller than the depth of the pressing hole 6 .

[0032] Specifically, the thickness of the pressing plate 9 is smaller than the depth of the pressing hole 6, the thickness of the pressing plate 9 is smaller than the depth of the pressing hole 6, the pressing hole 6 is rectangular, the pressing plate 9 is installed in the pressing hole 6, and the depth of the pressing hole 6 is greater than the thickness of the pressing plate 9, so that it is convenient for medical staff to press the pressing plate 9, and it is convenient for the pressing plate 9 to deform, avoiding the problem of difficult deformation caused by the large thickness of the pressing plate 9, and increasing the deformation amount of the pressing plate 9, thereby increasing the movement stroke of the drug storage sponge 10 and the microneedle 17 forced by the pressing plate 9, so that the microneedle 17 can more easily pierce the patient's skin.

[0033] In one embodiment, the side of the pressing plate 9 facing the medicine storing sponge 10 is flush with the top wall of the installation cavity 3 .

[0034] Specifically, the side of the pressing plate 9 facing the medicine storage sponge 10 is flush with the cavity top wall of the installation cavity 3, and the side of the pressing plate 9 facing the medicine storage sponge 10 is flush with the cavity top wall of the installation cavity 3. The installation cavity 3 has cavity side walls, cavity top walls and cavity bottom walls. The cavity top wall is located on the side of the upper top wall of the shell 1 that is away from the pressing surface. The thickness of the pressing plate 9 is less than the hole depth of the pressing hole 6. The pressing plate 9 is installed at the end of the pressing hole 6 close to the medicine storage sponge 10. The side of the pressing plate 9 facing the medicine storage sponge 10 is flush with the cavity top wall of the installation cavity 3, so that the pressing plate 9 is closer to the medicine storage sponge 10, which is convenient for medical staff to press, and the side of the pressing plate 9 facing away from the medicine storage sponge 10 and the pressing hole 6 form a pressing groove, which is convenient for medical staff to press.

[0035] In one embodiment, the microneedles 17 are provided in plurality, the number of the through holes 19 is consistent with the number of the microneedles 17 , and the microneedles 17 correspond to the through holes 19 one by one.

[0036] Specifically, there are multiple microneedles 17, the number of through holes 19 is consistent with the number of microneedles 17, the microneedles 17 correspond one-to-one with the through holes 19, there are multiple microneedles 17, the number of through holes 19 is consistent with the number of microneedles 17, the microneedles 17 correspond one-to-one with the through holes 19, multiple microneedles 17 are arranged at intervals at the bottom of the drug storage sponge 10, multiple through holes 19 are arranged at intervals on the lower bottom wall of the shell 1, the microneedles 17 correspond one-to-one with the through holes 19, and multiple microneedles 17 form a microneedle 17 array, so that the microneedle anesthesia device has multiple drug delivery channels, which can simultaneously input more anesthetic drugs into the patient's subcutaneous tissue, improve the input efficiency, and reduce the patient's discomfort time.

[0037] In one embodiment, it also includes a base plate 15, which is connected to the side of the drug storage sponge 10 facing the through hole 19, and the microneedle 17 is connected to the side of the base plate 15 facing away from the drug storage sponge 10, and the base plate 15 is provided with a base channel 16 connected to the drug administration channel and the drug storage gap.

[0038] Specifically, the microneedle anesthesia device also includes a base plate 15, the base plate 15 is connected to the side of the drug storage sponge 10 facing the through hole 19, the microneedle 17 is connected to the side of the base plate 15 facing away from the drug storage sponge 10, and the base plate 15 is provided with a base channel 16 connected to the drug administration channel and the drug storage gap. The microneedle anesthesia device also includes a base plate 15, the base plate 15 is connected to the side of the drug storage sponge 10 facing the through hole 19, the microneedle 17 is connected to the side of the base plate 15 facing away from the drug storage sponge 10, and the base plate 15 is provided with a base channel connected to the drug administration channel and the drug storage gap. 16, the base plate 15 is a plate-like structure, the side of the base plate 15 facing away from the lower bottom wall of the shell 1 is connected to the side of the drug storage sponge 10 facing the lower bottom wall of the shell 1, and a plurality of base channels 16 are provided on the base plate 15, the number of base channels 16 is consistent with the number of microneedles 17, and the microneedles 17 correspond to the base channels 16 one by one. The microneedles 17 are connected to the surface of the side of the base plate 15 facing away from the drug storage sponge 10, one end of the base channel 16 faces the drug storage sponge 10, and the other end of the base channel 16 is connected to the drug administration channel inside the microneedle 17, and the anesthetic drug in the drug storage sponge 10 enters the drug administration channel through the base channel 16. The base plate 15 provides an installation base for the microneedles 17, which is convenient for the installation of the microneedles 17. In addition, the setting of the base plate 15 allows the tips of all the microneedles 17 away from the base plate 15 to remain in the same plane, avoiding the uneven length of the end of the microneedles 17 away from the drug storage sponge 10, so that all the microneedles 17 can descend synchronously and pierce the patient's skin at the same time, which is convenient for operation.

[0039] In one embodiment, a mounting groove 4 is provided on the peripheral outer wall surface of the shell 1 , the medicine inlet hole 5 is arranged on the bottom wall of the mounting groove 4 , and the medicine capsule 13 is installed in the mounting groove 4 .

[0040] Specifically, a mounting groove 4 is provided on the peripheral outer wall surface of the shell 1, the medicine feed hole 5 is arranged on the bottom wall of the mounting groove 4, the medicine capsule 13 is installed in the mounting groove 4, a mounting groove 4 is provided on the peripheral outer wall surface of the shell 1, the medicine feed hole 5 is arranged on the bottom wall of the mounting groove 4, the medicine capsule 13 is installed in the mounting groove 4, a mounting groove 4 is provided on the outer wall surface of the peripheral side wall of the shell 1, the opening of the mounting groove 4 faces away from the mounting cavity 3, the medicine capsule 13 is installed in the mounting cavity 3, the medicine feed hole 5 is arranged on the bottom wall of the mounting groove 4, and the medicine capsule 13 inputs anesthetic drugs into the mounting cavity 3 through the medicine feed hole 5.

[0041] In one embodiment, a drug inlet pipe 14 is further included. The drug inlet pipe 14 is inserted into the drug inlet hole 5 , and the drug inlet pipe 14 is connected between the drug bag 13 and the drug storage sponge 10 .

[0042] Specifically, the microneedle anesthesia device also includes a drug feed tube 14, which is inserted into the drug feed hole 5, and the drug feed tube 14 is connected between the drug capsule 13 and the drug storage sponge 10. The microneedle anesthesia device also includes a drug feed tube 14, which is inserted into the drug feed hole 5, and the drug feed tube 14 is connected between the drug capsule 13 and the drug storage sponge 10. The microneedle anesthesia device also includes a drug feed tube 14, which is arranged in the mounting cavity 3, one end of the drug feed tube 14 is connected to the inner cavity wall of the mounting cavity 3, and the end of the drug feed tube 14 away from the mounting groove 4 extends into the drug storage sponge 10 and is connected to the drug storage sponge 10. When the drug capsule 13 is squeezed, the anesthetic in the drug capsule 13 enters the drug storage sponge 10 through the drug feed tube 14. The medicine bag 13 is connected to the medicine storage sponge 10 through the medicine inlet pipe 14, and the anesthetic in the medicine bag 13 directly flows to the medicine storage sponge 10 and is absorbed by the medicine storage sponge 10, thereby increasing the speed at which the medicine storage sponge 10 absorbs the anesthetic.

[0043] In one embodiment, sandpaper 8 is further included. The sandpaper 8 is arranged on the outer wall surface of the housing 1 and is used for polishing human skin.

[0044] Specifically, the microneedle anesthesia device also includes sandpaper 8, which is arranged on the outer wall surface of the shell 1. The sandpaper 8 is used to polish human skin. In the present embodiment, the sandpaper 8 is arranged on the pressing surface, covering the top of the pressing groove surrounded by the pressing plate 9 and the pressing hole 6. The side of the sandpaper 8 facing the medicine storage sponge 10 is connected to the outer wall surface of the upper top wall of the shell 1. The sandpaper 8 can be deformed toward the direction of the medicine storage sponge 10 under the pressure of external force. Before anesthesia is performed on the patient, the patient's skin surface is first polished by the sandpaper 8, and then the microneedle anesthesia device is pressed on the patient's skin, and then the sandpaper 8 is pressed to press the pressing plate 9.

[0045] In one embodiment, a removable protective film 7 is provided on the side of the sandpaper 8 facing away from the housing 1 .

[0046] Specifically, a removable protective film 7 is provided on the side of the sandpaper 8 facing away from the shell 1. The protective film 7 is arranged on the side of the sandpaper 8 facing away from the shell 1. In the present embodiment, the protective film 7 is centrifugal paper. Before anesthesia is performed on the patient, the protective film 7 is first torn off, and then the patient's skin surface is polished with the sandpaper 8, and then the microneedle anesthesia device is pressed on the patient's skin, and then the pressing plate 9 is pressed so that the microneedle 17 pierces the patient's skin.

[0047] In one embodiment, a waterproof layer is provided on the side wall of the installation cavity 3 .

[0048] Specifically, a waterproof layer is provided on the side wall of the installation cavity 3, and a waterproof layer is provided on the side wall of the inner cavity of the installation cavity 3. In the present embodiment, the waterproof layer is specifically a water-proof plate 11, and four water-proof plates 11 are arranged around. The side of the water-proof plate 11 facing away from the medicine storage sponge 10 is connected to the inner cavity wall of the installation cavity 3, and the water-proof plate 11 is provided with an avoidance hole 12 for the medicine feed pipe 14 to pass through, so as to prevent external moisture from penetrating into the installation cavity 3 and contaminating the installation cavity 3.

[0049] In one embodiment, the shell 1 includes an upper shell 2 and a lower cover plate 18, the installation cavity 3 is located in the upper shell 2, the pressing surface is located on the outer wall surface of the upper top wall of the upper shell 2, the upper top wall of the upper shell 2 forms the upper top wall of the shell 1, the peripheral side wall of the upper shell 2 forms the peripheral side wall of the shell 1, the lower cover plate 18 is connected to the lower end surface of the upper shell 2, the lower cover plate 18 is used to block the lower end opening of the installation cavity 3, the lower cover plate 18 serves as the lower bottom wall of the shell 1, and the through hole 19 is arranged on the lower cover plate 18.

[0050] The microneedle anesthesia device of the embodiment of the present invention has the following working principle: Before anesthetizing the patient, the protective film 7 is first torn off, and then the patient's skin surface is polished with sandpaper 8, and then the microneedle anesthesia device is pressed on the patient's skin, and then the sandpaper 8 and the pressing plate 9 are pressed to allow the microneedles 17 to pierce the patient's skin. The shell 1 is surrounded by a peripheral side wall, an upper top wall and a lower bottom wall, the pressing surface is arranged on the upper top wall of the shell 1, the pressing surface is formed on the side of the upper top wall facing away from the lower bottom wall, a pressing hole 6 is arranged on the pressing surface, the size of the pressing hole 6 is smaller than the size of the pressing surface, the pressing hole 6 is rectangular, the pressing plate 9 is installed in the pressing hole 6, the specific material of the pressing plate 9 is silicone material, the specific material of the shell 1 is hard plastic material, the texture of the pressing plate 9 is softer than that of the shell 1, the pressing plate 9 and the shell 1 are integrally injection molded, thereby improving the connection strength between the pressing plate 9 and the pressing hole 6, and preventing the pressing plate 9 from escaping from the pressing air, when the pressing plate 9 is pressed, the pressing plate 9 can be deformed in the direction close to the medicine storage sponge 10 in the installation cavity 3, and when the pressing plate 9 is released, the pressing plate 9 can restore the deformation.

[0051] The medicine storage sponge 10 is installed in the installation cavity 3. The medicine capsule 13 is an extrusion structure. Anesthetic drugs are stored in the medicine capsule 13. When the medicine capsule 13 is pressed, the anesthetic drugs in the medicine capsule 13 will enter the installation cavity 3 through the medicine inlet hole 5. The medicine capsule 13 inputs anesthetic drugs into the installation cavity 3 through the medicine inlet hole 5. After the anesthetic drugs enter the installation cavity 3, the medicine storage sponge 10 in the installation cavity 3 will first absorb the anesthetic drugs in the installation cavity 3 into its own medicine storage gap. In this embodiment, the medicine storage gap refers to the gap channel in the medicine storage sponge 10. The microneedle 17 is connected to the bottom of the medicine storage sponge 10. The end of the microneedle 17 away from the medicine storage sponge 10 is inserted into the through hole 19, but does not extend out of the through hole 19. When the medical staff presses the pressing plate 9, the pressing plate 9 moves toward The patient's skin is deformed, forcing the drug storage sponge 10 and the microneedle 17 to move toward the patient. When the microneedle 17 extends from the through hole 19, the microneedle 17 will rest against the patient's skin. When the pressing plate 9 continues to be pressed, the pressing plate 9 will squeeze the drug storage sponge 10. While the drug storage sponge 10 is squeezed, the drug storage sponge 10 will continue to move toward the patient's skin with the microneedle 17, so that the microneedle 17 penetrates into the patient's subcutaneous tissue. Since the pressure applied by the medical staff to the drug storage sponge 10 is greater than the pressure in the patient's subcutaneous tissue, the anesthetic in the drug storage sponge 10 will pass through the base channel 16 of the base plate 15 into the drug delivery channel of the microneedle 17, and then enter the patient's subcutaneous tissue through the drug delivery channel of the microneedle 17, thereby having an anesthetic effect on the patient.

[0052] According to the microneedle anesthesia device of the embodiment of the present invention, by squeezing the medicine bag 13, the anesthetic drug in the medicine bag 13 can be input into the installation cavity 3, and the drug storage sponge 10 can absorb the anesthetic drug in the installation cavity 3. By pressing the pressing plate 9 in the direction close to the through hole 19, the pressing plate 9 can push the drug storage sponge 10 and the microneedle 17 downward. When the microneedle 17 passes through the through hole 19 and contacts the patient's skin, the pressing plate 9 is continued to be pressed to allow the microneedle 17 to be inserted into the patient's subcutaneous tissue. When the pressing plate 9 is pressed, the drug storage sponge 10 is squeezed, and the anesthetic drug in the drug storage sponge 10 will enter the drug delivery channel of the microneedle 17, and then enter the patient's subcutaneous tissue through the drug delivery channel. Compared with the prior art, there is no need to rely on a drug delivery pump. The anesthetic drug can be pushed into the patient's subcutaneous tissue only by pressing the pressing plate. The operation is simple and easy to carry.

[0053] In other embodiments, the side of the pressing plate 9 facing away from the medicine sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the medicine sponge 10, and the side of the pressing plate 9 facing away from the medicine sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the medicine sponge 10. The mounting cavity 3 has a cavity side wall, a cavity top wall and a cavity bottom wall. The cavity top wall is located on the side of the upper top wall of the shell 1 facing away from the pressing surface. The thickness of the pressing plate 9 is less than the hole depth of the pressing hole 6. The pressing plate 9 is installed at the end of the pressing hole 6 away from the medicine sponge 10. The side of the pressing plate 9 facing away from the medicine sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the medicine sponge 10, so that the pressing plate 9 is closer to the upper top wall of the shell 1, which is convenient for medical staff to press.

[0054] In other embodiments, the thickness of the pressing plate 9 is consistent with the depth of the pressing hole 6 .

[0055] Specifically, the thickness of the pressing plate 9 is consistent with the depth of the pressing hole 6, the thickness of the pressing plate 9 is consistent with the depth of the pressing hole 6, the pressing hole 6 is rectangular, and the pressing plate 9 is installed in the pressing hole 6. The depth of the pressing hole 6 is consistent with the thickness of the pressing plate 9. The side of the pressing plate 9 facing away from the medicine storage sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the medicine storage sponge 10, and the side of the pressing plate 9 facing the medicine storage sponge 10 is flush with the cavity top wall of the installation cavity 3, which is convenient for installation.

[0056] In other embodiments, the thickness of the pressing plate 9 is greater than the depth of the pressing hole 6, and the side of the pressing plate 9 facing away from the medicine storage sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the medicine storage sponge 10. The mounting cavity 3 has a cavity side wall, a cavity top wall and a cavity bottom wall. The cavity top wall is located on the side of the upper top wall of the shell 1 facing away from the pressing surface. The thickness of the pressing plate 9 is greater than the depth of the pressing hole 6, and the pressing plate 9 is closer to the medicine storage sponge 10 relative to the cavity top wall, which is convenient for medical staff to press.

[0057] In other embodiments, the side of the sandpaper 8 facing the medicine storage sponge 10 is connected to the outer wall surface of the upper top wall of the shell 1, and the sandpaper 8 only occupies a part of the outer wall surface of the upper top wall. Before anesthesia is performed on the patient, the patient's skin surface is first polished with the sandpaper 8, and then the microneedle anesthesia device is pressed on the patient's skin, and then the pressing plate 9 is pressed to allow the microneedle 17 to pierce the patient's skin.

[0058] In other embodiments, the protective film 7 is a sticky plastic film. Before anesthetizing the patient, the plastic film is first torn off, and then the patient's skin surface is polished with sandpaper 8. Then, the microneedle anesthesia device is pressed against the patient's skin, and then the pressing plate 9 is pressed so that the microneedle 17 pierces the patient's skin.

[0059] In other embodiments, the thickness of the pressing plate 9 is consistent with the depth of the pressing hole 6, the thickness of the pressing plate 9 is consistent with the depth of the pressing hole 6, the pressing plate 9 is circular, the pressing hole 6 is circular, the pressing plate 9 is installed in the pressing hole 6, the depth of the pressing hole 6 is consistent with the thickness of the pressing plate 9, the side of the pressing plate 9 facing away from the medicine storage sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the medicine storage sponge 10, and the side of the pressing plate 9 facing the medicine storage sponge 10 is flush with the top wall of the installation cavity 3, which is convenient for installation.

[0060] In other embodiments, a waterproof layer is provided on the side wall of the installation cavity 3, and a waterproof layer is provided on the side wall of the inner cavity of the installation cavity 3. The waterproof layer is specifically a water-proof membrane, and the water-proof membrane is arranged around. The side of the water-proof plate 11 facing away from the medicine storage sponge 10 is connected to the inner cavity wall of the installation cavity 3, thereby preventing external moisture from penetrating into the installation cavity 3 and contaminating the installation cavity 3.

[0061] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A microneedle anesthesia device, characterized in that: The invention comprises a shell (1), a medicine capsule (13), a microneedle (17), a medicine storage sponge (10) and a pressing plate (9), wherein a mounting cavity (3) is provided in the shell (1), a pressing hole (6), a medicine feed hole (5) and a through hole (19) respectively connected to the mounting cavity (3) are provided on the shell (1), the shell (1) has a pressing surface, the pressing hole (6) is located on the pressing surface, the pressing hole (6) and the through hole (19) are arranged opposite to each other, the pressing plate (9) is inserted into the pressing hole (6), the outer edge of the pressing plate (9) is connected to the inner wall of the pressing hole (6), and the pressing plate (9) can be deformed toward the medicine storage sponge (10) when pressed; When the medicine bag (13) is squeezed, the anesthetic drug can be introduced into the installation cavity (3) through the drug inlet hole (5); the drug storage sponge (10) is installed in the installation cavity (3); the drug storage sponge (10) has a drug storage gap; the drug storage sponge (10) can absorb the anesthetic drug in the installation cavity (3) into the drug storage gap; the side of the drug storage sponge (10) facing away from the through hole (19) is in contact with the pressing plate (9); The microneedle (17) is connected to a side of the drug storage sponge (10) facing the through hole (19), the microneedle (17) is inserted into the through hole (19), and the microneedle (17) is provided with a drug delivery channel, which is connected to the drug storage gap.

2. The microneedle anesthesia device according to claim 1, characterized in that: The thickness of the pressing plate (9) is smaller than the depth of the pressing hole (6).

3. The microneedle anesthesia device according to claim 2, characterized in that: The side of the pressing plate (9) facing the medicine storage sponge (10) is flush with the top wall of the installation cavity (3).

4. The microneedle anesthesia device according to claim 1, characterized in that: A plurality of the microneedles (17) are provided, the number of the through holes (19) is consistent with the number of the microneedles (17), and the microneedles (17) correspond one to one to the through holes (19).

5. The microneedle anesthesia device according to claim 4, characterized in that: The invention also comprises a base plate (15), wherein the base plate (15) is connected to a side of the drug storage sponge (10) facing the through hole (19), the microneedle (17) is connected to a side of the base plate (15) facing away from the drug storage sponge (10), and the base plate (15) is provided with a base channel (16) connected to the drug administration channel and the drug storage gap.

6. The microneedle anesthesia device according to any one of claims 1 to 3, characterized in that: A mounting groove (4) is provided on the peripheral outer wall surface of the shell (1), the medicine inlet hole (5) is arranged on the bottom wall of the mounting groove (4), and the medicine bag (13) is installed in the mounting groove (4).

7. The microneedle anesthesia device according to claim 6, characterized in that: It also comprises a drug inlet pipe (14), the drug inlet pipe (14) being inserted into the drug inlet hole (5), and the drug inlet pipe (14) being connected between the drug bag (13) and the drug storage sponge (10).

8. The microneedle anesthesia device according to claim 1, characterized in that: It also comprises sandpaper (8), wherein the sandpaper (8) is arranged on the outer wall surface of the housing (1), and the sandpaper (8) is used for polishing human skin.

9. The microneedle anesthesia device according to claim 8, characterized in that: A removable protective film (7) is provided on the side of the sandpaper (8) facing away from the housing (1).

10. The microneedle anesthesia device according to claim 1, characterized in that: A waterproof layer is provided on the side wall of the installation cavity (3).

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