Micro-needle anesthesia device

Abstract

The utility model 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, an installation cavity is formed in the shell, a pressing hole is formed in a pressing face, the pressing hole and a through hole are oppositely arranged, 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 outer edge of the pressing plate is connected with the medicine storage sponge. 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 utility model belongs to the medical anesthetic technical field especially, relates to a kind of microneedle anesthesia device. BACKGROUND

[0002] Microneedle anesthesia device is a method for anesthesia using microneedle technology, which stimulates the skin through microneedle to promote the absorption of local anesthetic, thereby achieving the effect of painlessness or reducing pain.

[0003] The existing microneedle anesthesia device includes a shell, a drug delivery pump and microneedles. The shell is provided with a drug delivery cavity. The bottom of the shell is provided with a drug delivery hole. The microneedle shell is connected. The drug delivery channel in the microneedle is in communication with the drug delivery hole. The drug delivery pump is in communication with the drug delivery cavity through a pipeline. In use, the microneedle is applied to the skin of a patient. The drug delivery pump pumps anesthetic into the drug delivery cavity through the pipeline. Under the push of the drug delivery pump, the anesthetic enters the subcutaneous tissue of the patient through the drug delivery hole and the drug delivery channel in the microneedle, so as to anesthetize the position of the patient.

[0004] However, the existing microneedle anesthesia device needs to rely on the drug delivery pump to push anesthetic into the subcutaneous tissue of the patient, which is inconvenient to carry. When the drug delivery pump is damaged, the microneedle anesthesia device is disabled. SUMMARY

[0005] The utility model solves the technical problem that the existing microneedle anesthesia device needs to rely on the drug delivery pump to push anesthetic into the subcutaneous tissue of the patient, and provides a microneedle anesthesia device.

[0006] To solve the above technical problems, the utility model embodiment provides a microneedle anesthesia device, which comprises a shell, a medicine bag, microneedles, a drug storage sponge and a pressing plate. The shell is provided with an installation cavity. The shell is provided with a pressing hole, a medicine inlet hole and a through hole in communication with the installation cavity. The shell has a pressing surface. The pressing hole is located on the pressing surface. The pressing hole is opposite to the through hole. The pressing plate is arranged in the pressing hole. The outer edge of the pressing plate is connected with the inner wall of the pressing hole. The pressing plate can be deformed towards the drug storage sponge when being pressed.

[0007] When the medicine bag is squeezed, anesthetic can be input into the installation cavity through the medicine 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 anesthetic in the installation cavity into the drug storage gap. The side of the drug storage sponge opposite to the through hole is in contact with the pressing plate.

[0008] The microneedle is connected with the side of the drug storage sponge towards the through hole. The microneedle is inserted into the through hole. The microneedle is provided with a drug delivery channel. The drug delivery channel is in communication with the drug storage gap.

[0009] Optionally, the thickness of the pressing plate is less than the hole depth of the pressing hole.

[0010] Optionally, the side of the pressing plate facing the drug storage sponge is flush with the cavity top wall of the mounting cavity.

[0011] Optionally, a plurality of microneedles are provided, 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.

[0012] Optionally, a base plate is further provided, the base plate is connected to the side of the drug storage sponge facing the through hole, the microneedles are connected to the side of the base plate facing away from the drug storage sponge, and a base channel is provided on the base plate and communicates with the drug delivery channel and the drug storage gap.

[0013] Optionally, a mounting groove is provided on the outer wall surface of the shell, the medicine inlet hole is arranged on the groove bottom wall of the mounting groove, and the medicine bag is mounted in the mounting groove.

[0014] Optionally, a medicine inlet pipe is further provided, the medicine inlet pipe is arranged in the medicine inlet hole, and the medicine inlet pipe is connected between the medicine bag and the drug storage sponge.

[0015] Optionally, a sandpaper is further provided, the sandpaper is arranged on the outer wall surface of the shell, and the sandpaper is used for polishing the skin of a person.

[0016] Optionally, a tearable protective film is arranged on the side of the sandpaper facing away from the shell.

[0017] Optionally, a waterproof layer is arranged on the cavity side wall of the mounting cavity.

[0018] The microneedle anesthesia device provided by the embodiment of the present application can input the anesthetic in the medicine bag into the mounting cavity by extruding the medicine bag, the drug storage sponge can absorb the anesthetic in the mounting cavity, the pressing plate can push the drug storage sponge and the microneedle downward by pressing the pressing plate toward the direction close to the through hole, when the microneedle penetrates through the through hole and contacts the skin of a patient, the microneedle can be inserted into the subcutaneous tissue of the patient by continuously pressing the pressing plate, the drug storage sponge is extruded when the pressing plate is pressed, the anesthetic in the drug storage sponge can enter the drug delivery channel of the microneedle, and then enter the subcutaneous tissue of the patient through the drug delivery channel, compared with the prior art, the anesthetic can be pushed into the subcutaneous tissue of the patient by only pressing the pressing plate without relying on the medicine delivery pump, and the operation is simple and convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The structural schematic diagram of the microneedle anesthesia device provided by an embodiment of the present application is shown in the figure.

[0021] Figure 2 The exploded schematic diagram of the microneedle anesthesia device provided by an embodiment of the present application is shown in the figure. Figure 1

[0022] Figure 3 The assembly schematic diagram of the microneedle and the base plate is shown in the figure.

[0023] Figure 4 The structural schematic diagram of the lower cover plate is shown in the figure.

[0024] The reference signs in the description are as follows: 1, shell; 2, upper shell; 3, mounting cavity; 4, mounting groove; 5, medicine inlet hole; 6, pressing hole; 7, protective film; 8, sandpaper; 9, pressing plate; 10, medicine storage sponge; 11, water permeation prevention plate; 12, avoiding hole; 13, medicine bag; 14, medicine inlet pipe; 15, base plate; 16, base channel; 17, microneedle; 18, lower cover plate; 19, through hole. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical schemes and beneficial effects solved by the present application more clearly understood, the present application will be further described in detail in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In order to make the technical problems, technical schemes and beneficial effects solved by the present application more clearly understood, the present application will be further described in detail in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. ​

[0028] As Figure 1 And Figure 2 An embodiment of the utility model provides a kind of microneedle anesthesia device, including shell 1, medicine packet 13, microneedle 17, drug storage sponge 10 and pressing plate 9, installation cavity 3 is equipped in the shell 1, pressing hole 6, medicine inlet hole 5 and through-hole 19 that the installation cavity 3 is communicated are equipped on the shell 1, the shell 1 has pressing surface, the pressing hole 6 is located on the pressing surface, the pressing hole 6 is oppositely arranged with the through-hole 19, the pressing plate 9 is arranged in the pressing hole 6, the outer edge of the pressing plate 9 is connected with the hole inner wall of the pressing hole 6, the pressing plate 9 can be deformed towards the drug storage sponge 10 when being pressed;

[0029] The medicine packet 13 can input anesthetic into the installation cavity 3 through the medicine inlet hole 5 when being extruded, the drug storage sponge 10 is installed in the installation cavity 3, the drug storage sponge 10 has drug storage gap, the drug storage sponge 10 can suck the anesthetic in the installation cavity 3 into the drug storage gap, the side of the drug storage sponge 10 away from the through-hole 19 is in contact with the pressing plate 9.

[0030] The microneedle 17 is connected with the side of the drug storage sponge 10 towards the through-hole 19, the microneedle 17 is inserted in the through-hole 19, the microneedle 17 is equipped with administration channel, and the administration channel is communicated with the drug storage gap.

[0031] Specifically, microneedle anesthesia device includes shell 1, medicine packet 13, microneedle 17, drug storage sponge 10 and pressing plate 9, installation cavity 3 is equipped in the shell 1, pressing hole 6, medicine inlet hole 5 and through-hole 19 that the installation cavity 3 is communicated are equipped on the shell 1, the shell 1 has pressing surface, the pressing hole 6 is located on the pressing surface, the pressing hole 6 is oppositely arranged with the through-hole 19, the pressing plate 9 is arranged in the pressing hole 6, the outer edge of the pressing plate 9 is connected with the hole inner wall of the pressing hole 6, and the pressing plate 9 is relatively soft in texture with the shell 1.

[0032] When extruding the medicine packet 13, the medicine packet 13 is used to input anesthetic into the installation cavity 3 through the medicine inlet hole 5, the drug storage sponge 10 is installed in the installation cavity 3, the drug storage sponge 10 has drug storage gap, the drug storage sponge 10 can suck the anesthetic in the installation cavity 3 into the drug storage gap, and the side of the drug storage sponge 10 away from the through-hole 19 is in contact with the pressing plate 9.

[0033] The microneedle 17 is connected to the side of the drug storage sponge 10 facing the through hole 19, the microneedle 17 is inserted in the through hole 19, the microneedle 17 is provided with a drug delivery channel, the drug delivery channel is in communication with the drug storage gap, by extruding the medicine capsule 13, the anesthetic in the medicine capsule 13 can be input into the installation cavity 3, the drug storage sponge 10 can absorb the anesthetic in the installation cavity 3, by pressing the pressing plate 9 towards 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 penetrates the through hole 19 and contacts the skin of the patient, continuing to press the pressing plate 9 can make the microneedle 17 penetrate into the subcutaneous tissue of the patient, when the pressing plate 9 is pressed, the drug storage sponge 10 is extruded, the anesthetic in the drug storage sponge 10 can enter the drug delivery channel of the microneedle 17, and then enter the subcutaneous tissue of the patient through the drug delivery channel, compared with the prior art, the anesthetic can be pushed into the subcutaneous tissue of the patient only by pressing the pressing plate, the operation is simple and convenient to carry.

[0034] In the embodiment, the shell 1 is surrounded by a circumferential 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, the 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 formed by the upper end opening of the installation 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 silica gel material, and 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 is integrally injection molded with the shell 1, so as to improve the connection strength between the pressing plate 9 and the pressing hole 6, avoid the pressing plate 9 from being separated from the pressing hole, and deform the pressing plate 9 towards the direction close to the drug storage sponge 10 in the installation cavity 3 when the pressing plate 9 is pressed, and restore the deformation of the pressing plate 9 when the pressing plate 9 is released.

[0035] The drug storage sponge 10 is installed in the installation cavity 3, the drug capsule 13 is of a squeezed structure, the drug capsule 13 stores anesthetic drugs, when the drug capsule 13 is pressed, the anesthetic drugs in the drug capsule 13 enter the installation cavity 3 through the drug inlet hole 5, the drug capsule 13 inputs the anesthetic drugs into the installation cavity 3 through the drug inlet hole 5, when the anesthetic drugs enter the installation cavity 3, the drug storage sponge 10 in the installation cavity 3 first absorbs the anesthetic drugs in the installation cavity 3 into the drug storage gap of the drug storage sponge 10, in the embodiment, the drug storage gap refers to a gap channel in the drug storage sponge 10, the microneedle 17 is connected to the bottom of the drug storage sponge 10, the end of the microneedle 17 away from the drug storage sponge 10 is inserted into the through hole 19, but does not protrude out of the through hole 19, when the medical staff presses the pressing plate 9, the pressing plate 9 deforms towards the skin of the patient, thereby forcing the drug storage sponge 10 and the microneedle 17 to move towards the patient, when the microneedle 17 protrudes out of the through hole 19, the microneedle 17 abuts against the skin of the patient, when the pressing plate 9 is continuously pressed, the pressing plate 9 squeezes the drug storage sponge 10, at the same time that the drug storage sponge 10 is squeezed, the drug storage sponge 10 continuously moves towards the skin of the patient with the microneedle 17, thereby making the microneedle 17 pierce into the subcutaneous tissue of the patient, since the pressure applied by the medical staff to the drug storage sponge 10 is greater than the pressure in the subcutaneous tissue of the patient, the anesthetic drugs in the drug storage sponge 10 enter the drug delivery channel of the microneedle 17, and then enter the subcutaneous tissue of the patient through the drug delivery channel of the microneedle 17, thereby achieving an anesthetic effect on the patient.

[0036] According to the microneedle anesthetic device, the anesthetic drugs in the drug capsule 13 can be input into the installation cavity 3 by squeezing the drug capsule 13, the drug storage sponge 10 can absorb the anesthetic drugs in the installation cavity 3, the pressing plate 9 can push the drug storage sponge 10 and the microneedle 17 to move downwards by pressing the pressing plate 9 towards the direction close to the through hole 19, when the microneedle 17 contacts the skin of the patient by penetrating through the through hole 19, the microneedle 17 can pierce into the subcutaneous tissue of the patient by continuously pressing the pressing plate 9, when the pressing plate 9 is pressed, the drug storage sponge 10 is squeezed, the anesthetic drugs in the drug storage sponge 10 enter the drug delivery channel of the microneedle 17, and then enter the subcutaneous tissue of the patient through the drug delivery channel, compared with the prior art, the anesthetic drugs can be pushed into the subcutaneous tissue of the patient by only pressing the pressing plate, without relying on a drug delivery pump, and the operation is simple and the device is convenient to carry.

[0037] In an embodiment, the thickness of the pressing plate 9 is less than the hole depth of the pressing hole 6.

[0038] Specifically, the thickness of the pressing plate 9 is less than the hole depth of the pressing hole 6, the pressing plate 9 is installed in the pressing hole 6, the pressing hole 6 is rectangular, the hole depth of the pressing hole 6 is greater than the thickness of the pressing plate 9, thereby facilitating the medical staff to press the pressing plate 9, facilitating the deformation of the pressing plate 9, avoiding the problem of not easy to deform caused by the large thickness of the pressing plate 9, improving the deformation amount of the pressing plate 9, thereby improving the moving stroke of the drug storage sponge 10 and the microneedle 17 forced by the pressing plate 9, and making the microneedle 17 more easily pierce the patient's skin.

[0039] In an embodiment, one side of the pressing plate 9 towards the drug storage sponge 10 is flush with the cavity top wall of the mounting cavity 3.

[0040] Specifically, one side of the pressing plate 9 towards the drug storage sponge 10 is flush with the cavity top wall of the mounting cavity 3, one side of the pressing plate 9 towards the drug storage sponge 10 is flush with the cavity top wall of the mounting cavity 3, 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 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 one end of the pressing hole 6 close to the drug storage sponge 10, one side of the pressing plate 9 towards the drug storage sponge 10 is flush with the cavity top wall of the mounting cavity 3, so that the pressing plate 9 is closer to the drug storage sponge 10, facilitating the medical staff to press, and one side of the pressing plate 9 away from the drug storage sponge 10 and the pressing hole 6 form a pressing groove, facilitating the medical staff to press.

[0041] In an embodiment, the microneedle 17 is provided with a plurality of microneedles, the number of the through hole 19 is consistent with the number of the microneedle 17, and the microneedle 17 corresponds to the through hole 19 one by one.

[0042] Specifically, the microneedle 17 is provided with a plurality of microneedles, the number of the through hole 19 is consistent with the number of the microneedle 17, and the microneedle 17 corresponds to the through hole 19 one by one, the plurality of microneedles 17 are arranged at the bottom of the drug storage sponge 10, the plurality of through holes 19 are arranged on the lower bottom wall of the shell 1, the microneedle 17 corresponds to the through hole 19 one by one, and the plurality of microneedles 17 form a microneedle 17 array, so that the microneedle anesthesia device has a plurality of drug delivery channels, can input more anesthetic drugs into the subcutaneous tissue of the patient at the same time, improve the input efficiency, and reduce the time of patient discomfort.

[0043] In an embodiment, a base plate 15 is further included, one side of the base plate 15 towards the through hole 19 is connected with the drug storage sponge 10, one side of the microneedle 17 away from the drug storage sponge 10 is connected with the base plate 15, and the base plate 15 is provided with a base channel 16 communicated with the drug delivery channel and the drug storage gap.

[0044] Specifically, the microneedle anesthesia device further comprises a base plate 15 connected to one side of the drug storage sponge 10 facing the through hole 19, and the microneedles 17 are connected to the other side of the base plate 15 away from the drug storage sponge 10, and the base plate 15 is provided with a base channel 16 communicating with the drug delivery channel and the drug storage gap. The microneedle anesthesia device further comprises a base plate 15 connected to one side of the drug storage sponge 10 facing the through hole 19, and the microneedles 17 are connected to the other side of the base plate 15 away from the drug storage sponge 10, and the base plate 15 is provided with a base channel 16 communicating with the drug delivery channel and the drug storage gap. The base plate 15 is a plate structure, and the other side of the base plate 15 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. The base plate 15 is provided with a plurality of base channels 16, and the number of base channels 16 is consistent with the number of microneedles 17. The microneedles 17 correspond to the base channels 16 one by one. The microneedles 17 are connected to the surface of the base plate 15 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 communicates with the drug delivery channel inside the microneedle 17. The anesthetic in the drug storage sponge 10 enters the drug delivery channel through the base channel 16. The base plate 15 provides a mounting basis for the microneedles 17, facilitating the installation of the microneedles 17. In addition, the setting of the base plate 15 makes the tips of all microneedles 17 away from the base plate 15 remain in the same plane, avoiding the uneven length of the ends of the microneedles 17 away from the drug storage sponge 10, so that all microneedles 17 can be lowered synchronously and simultaneously pierce the patient's skin, facilitating operation.

[0045] In an embodiment, the outer wall surface of the peripheral side of the shell 1 is provided with a mounting groove 4, the drug inlet hole 5 is arranged on the groove bottom wall of the mounting groove 4, and the drug capsule 13 is mounted in the mounting groove 4.

[0046] Specifically, the outer wall surface of the peripheral side of the shell 1 is provided with a mounting groove 4, the drug inlet hole 5 is arranged on the groove bottom wall of the mounting groove 4, and the drug capsule 13 is mounted in the mounting groove 4. The outer wall surface of the peripheral side of the shell 1 is provided with a mounting groove 4, the drug inlet hole 5 is arranged on the groove bottom wall of the mounting groove 4, and the drug capsule 13 is mounted in the mounting groove 4. The outer wall surface of the peripheral side of the shell 1 is provided with a mounting groove 4, the opening of the mounting groove 4 faces away from the mounting cavity 3, the drug capsule 13 is mounted in the mounting cavity 3, the drug inlet hole 5 is arranged on the groove bottom wall of the mounting groove 4, and the drug capsule 13 inputs anesthetic into the mounting cavity 3 through the drug inlet hole 5.

[0047] In an embodiment, it further comprises a drug inlet pipe 14, the drug inlet pipe 14 is arranged in the drug inlet hole 5, and the drug inlet pipe 14 is connected between the drug capsule 13 and the drug storage sponge 10.

[0048] Specifically, the microneedle anesthesia device further comprises a medicine inlet pipe 14, the medicine inlet pipe 14 is arranged in the medicine inlet hole 5, and the medicine inlet pipe 14 is connected between the medicine bag 13 and the medicine storage sponge 10. The microneedle anesthesia device further comprises a medicine inlet pipe 14, the medicine inlet pipe 14 is arranged in the medicine inlet hole 5, and the medicine inlet pipe 14 is connected between the medicine bag 13 and the medicine storage sponge 10. The microneedle anesthesia device further comprises a medicine inlet pipe 14, the medicine inlet pipe 14 is arranged in the installation cavity 3, one end of the medicine inlet pipe 14 is connected with the inner cavity wall of the installation cavity 3, and the other end of the medicine inlet pipe 14 away from the installation groove 4 extends into the medicine storage sponge 10 and is connected with the medicine storage sponge 10. When the medicine bag 13 is squeezed, the anesthetic in the medicine bag 13 enters the medicine storage sponge 10 through the medicine inlet pipe 14. The medicine bag 13 is connected with 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 improving the speed of the medicine storage sponge 10 in absorbing the anesthetic.

[0049] In an embodiment, the shell 1 is further provided with sandpaper 8 arranged on the outer wall surface of the shell 1, and the sandpaper 8 is used for polishing the skin of a person.

[0050] Specifically, the microneedle anesthesia device further comprises sandpaper 8 arranged on the outer wall surface of the shell 1, and the sandpaper 8 is used for polishing the skin of a person. In this embodiment, the sandpaper 8 is arranged on the pressing surface and covers the pressing groove formed by the pressing plate 9 and the pressing hole 6. The side of the sandpaper 8 facing the medicine storage sponge 10 is connected with the outer wall surface of the upper top wall of the shell 1. The sandpaper 8 can be deformed in the direction of the medicine storage sponge 10 under the pressing of an external force. Before the microneedle anesthesia device is pressed against the skin of a patient, the skin surface of the patient is polished by the sandpaper 8, and then the sandpaper 8 is pressed, so that the pressing plate 9 is pressed.

[0051] In an embodiment, the side of the sandpaper 8 away from the shell 1 is provided with a tearable protective film 7.

[0052] Specifically, the side of the sandpaper 8 away from the shell 1 is provided with a tearable protective film 7. The protective film 7 is arranged on the side of the sandpaper 8 away from the shell 1. In this embodiment, the protective film 7 is a centrifugal paper. Before the microneedle anesthesia device is pressed against the skin of a patient, the protective film 7 is torn off, and then the skin surface of the patient is polished by the sandpaper 8, and then the microneedle anesthesia device is pressed against the skin of the patient, and then the pressing plate 9 is pressed, so that the microneedle 17 pierces the skin of the patient.

[0053] In an embodiment, the cavity side wall of the installation cavity 3 is provided with a waterproof layer.

[0054] Specifically, the cavity side wall of the installation cavity 3 is provided with a waterproof layer, and the side wall of the inner cavity of the installation cavity 3 is provided with a waterproof layer. In this embodiment, the waterproof layer is specifically a water seepage prevention plate 11, and the four water seepage prevention plates 11 are arranged around. The side of the water seepage prevention plate 11 away from the medicine storage sponge 10 is connected with the inner cavity wall of the installation cavity 3, and the water seepage prevention plate 11 is provided with a avoiding hole 12 for the medicine inlet pipe 14 to pass through, so that the external moisture can be prevented from seeping into the installation cavity 3, thereby polluting the installation cavity 3.

[0055] In an 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 circumferential side wall of the upper shell 2 forms the circumferential side wall of the shell 1, the lower cover plate 18 is connected with the lower end surface of the upper shell 2, the lower cover plate 18 is used for sealing 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.

[0056] The working principle of the microneedle anesthesia device in the embodiment of the utility model is as follows:

[0057] During the anesthesia of the patient, the protective film 7 is first torn off, and then the sandpaper 8 is used to polish the skin surface of the patient, and then the microneedle anesthesia device is pressed on the skin of the patient, and then the sandpaper 8 and the pressing plate 9 are pressed, so that the microneedle 17 pierces the skin of the patient. The shell 1 is surrounded by the circumferential side wall, the upper top wall and the lower bottom wall, the pressing surface is arranged on the upper top wall of the shell 1, the side of the upper top wall away from the lower bottom wall forms the pressing surface, the 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 silica gel material, the specific material of the shell 1 is hard plastic material, the texture of the pressing plate 9 is relatively soft compared with the shell 1, the pressing plate 9 and the shell 1 are integrally injection molded, so as to improve the connection strength between the pressing plate 9 and the pressing hole 6, avoid the pressing plate 9 from being separated from the pressing hole, and when the pressing plate 9 is pressed, the pressing plate 9 can be deformed towards the direction of 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.

[0058] The medicine storage sponge 10 is installed in the installation cavity 3, the medicine bag 13 is of a squeezed structure, the anesthetic is stored in the medicine bag 13, when the medicine bag 13 is pressed, the anesthetic in the medicine bag 13 enters the installation cavity 3 through the medicine inlet hole 5, the medicine bag 13 inputs the anesthetic into the installation cavity 3 through the medicine inlet hole 5, when the anesthetic enters the installation cavity 3, the medicine storage sponge 10 in the installation cavity 3 firstly absorbs the anesthetic in the installation cavity 3 into the medicine storage gap of the medicine storage sponge 10, in the 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 protrude from the through hole 19, when the medical staff presses the pressing plate 9, the pressing plate 9 is deformed towards the skin of the patient, so as to force the medicine storage sponge 10 and the microneedle 17 to move towards the patient, when the microneedle 17 protrudes from the through hole 19, the microneedle 17 abuts against the skin of the patient, when the pressing plate 9 is continuously pressed, the pressing plate 9 squeezes the medicine storage sponge 10, at the same time that the medicine storage sponge 10 is squeezed, the medicine storage sponge 10 continuously moves towards the skin of the patient with the microneedle 17, so that the microneedle 17 pierces into the subcutaneous tissue of the patient, because the pressure applied by the medical staff to the medicine storage sponge 10 is greater than the pressure in the subcutaneous tissue of the patient, the anesthetic in the medicine storage sponge 10 enters the medicine delivery channel of the microneedle 17 through the base channel 16 of the base plate 15, and then enters the subcutaneous tissue of the patient through the medicine delivery channel of the microneedle 17, so as to have an anesthetic effect on the patient.

[0059] According to the microneedle anesthetic device, the anesthetic in the medicine bag 13 can be input into the installation cavity 3 by squeezing the medicine bag 13, the medicine storage sponge 10 can absorb the anesthetic in the installation cavity 3, the pressing plate 9 can push the medicine storage sponge 10 and the microneedle 17 downwards by pressing the pressing plate 9 towards the direction close to the through hole 19, when the microneedle 17 contacts the skin of the patient by penetrating through the through hole 19, the microneedle 17 can pierce into the subcutaneous tissue of the patient by continuously pressing the pressing plate 9, when the pressing plate 9 is pressed, the medicine storage sponge 10 is squeezed, the anesthetic in the medicine storage sponge 10 enters the medicine delivery channel of the microneedle 17, and then enters the subcutaneous tissue of the patient through the medicine delivery channel, compared with the prior art, the anesthetic can be pushed into the subcutaneous tissue of the patient by only pressing the pressing plate, without relying on the medicine delivery pump, and the operation is simple and convenient to carry.

[0060] In other embodiments, the side of the pressing plate 9 facing away from the drug storage sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the drug storage sponge 10, the pressing plate 9 is installed in the pressing hole 6 away from the drug storage sponge 10, the thickness of the pressing plate 9 is less than the hole depth of the pressing hole 6, and the side of the pressing plate 9 facing away from the drug storage sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the drug storage sponge 10, so that the pressing plate 9 is more flush with the upper top wall of the shell 1, facilitating pressing by medical staff.

[0061] In other embodiments, the thickness of the pressing plate 9 is consistent with the hole depth of the pressing hole 6.

[0062] Specifically, the thickness of the pressing plate 9 is consistent with the hole depth of the pressing hole 6, the pressing plate 9 is installed in the pressing hole 6, the hole 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 drug storage sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the drug storage sponge 10, and the side of the pressing plate 9 facing toward the drug storage sponge 10 is flush with the cavity top wall of the installation cavity 3, facilitating installation.

[0063] In other embodiments, the thickness of the pressing plate 9 is greater than the hole depth of the pressing hole 6, the side of the pressing plate 9 facing away from the drug storage sponge 10 is flush with the side of the upper top wall of the shell 1 facing away from the drug storage sponge 10, the installation 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 hole depth of the pressing hole 6, and the pressing plate 9 is closer to the drug storage sponge 10 relative to the cavity top wall, facilitating pressing by medical staff.

[0064] In other embodiments, the side of the sandpaper 8 facing toward the drug 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 portion of the outer wall surface of the upper top wall. During anesthesia of the patient, the skin surface of the patient is first polished by the sandpaper 8, then the microneedle anesthesia device is pressed against the skin of the patient, and then the pressing plate 9 is pressed to allow the microneedles 17 to pierce the skin of the patient.

[0065] In other embodiments, the protective film 7 is an adhesive plastic film. During anesthesia of the patient, the plastic film is first removed, then the skin surface of the patient is polished by the sandpaper 8, then the microneedle anesthesia device is pressed against the skin of the patient, and then the pressing plate 9 is pressed to allow the microneedles 17 to pierce the skin of the patient.

[0066] In other embodiments, the thickness of the pressing plate 9 is consistent with the hole depth of the pressing hole 6, the thickness of the pressing plate 9 is consistent with the hole 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 hole depth of the pressing hole 6 is consistent with the thickness of the pressing plate 9, the side of the pressing plate 9 away from the medicine storage sponge 10 is flush with the side of the upper top wall of the shell 1 away from the medicine storage sponge 10, and the side of the pressing plate 9 toward the medicine storage sponge 10 is flush with the cavity top wall of the installation cavity 3, facilitating installation.

[0067] In other embodiments, the cavity side wall of the installation cavity 3 is provided with a waterproof layer, the side wall of the inner cavity of the installation cavity 3 is provided with a waterproof layer, the waterproof layer is specifically a water seepage prevention film, the water seepage prevention film is arranged around, and the side of the water seepage prevention film 11 away from the medicine storage sponge 10 is connected with the inner cavity wall of the installation cavity 3, so that water from the outside can be prevented from seeping into the installation cavity 3, thereby preventing the installation cavity 3 from being contaminated.

[0068] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not change the essence of the corresponding technical solutions, and should be included in the protection scope of the present application.

Claims

1. A microneedle anesthesia device, characterized by, The application relates to a drug delivery device, which comprises a shell (1), a medicine bag (13), microneedles (17), a medicine storage sponge (10) and a pressing plate (9), the shell (1) is internally provided with an installation cavity (3), the shell (1) is externally provided with a pressing hole (6), a medicine inlet hole (5) and a through hole (19) which are communicated with the installation cavity (3) respectively, the shell (1) has a pressing surface, the pressing hole (6) is located on the pressing surface, the pressing hole (6) is oppositely arranged with the through hole (19), the pressing plate (9) is arranged in the pressing hole (6), the outer edge of the pressing plate (9) is connected with the inner wall of the pressing hole (6), and the pressing plate (9) can be deformed and recessed towards the medicine storage sponge (10) when being pressed; the medicine bag (13) can input anesthetic into the installation cavity (3) through the medicine inlet hole (5) when being pressed, the medicine storage sponge (10) is arranged in the installation cavity (3), the medicine storage sponge (10) has a medicine storage gap, the medicine storage sponge (10) can absorb the anesthetic in the installation cavity (3) into the medicine storage gap, and the side of the medicine storage sponge (10) which is opposite to the through hole (19) is connected with the pressing plate (9); the microneedles (17) are connected with the side of the medicine storage sponge (10) which is towards the through hole (19), the microneedles (17) are arranged in the through hole (19), and the microneedles (17) are provided with a medicine delivery channel which is communicated with the medicine storage gap.

2. The microneedle anesthetic device of claim 1, wherein, The thickness of the pressing plate (9) is smaller than the depth of the pressing hole (6).

3. The microneedle anesthetic device of claim 2, wherein, The side of the pressing plate (9) which is towards the medicine storage sponge (10) is flush with the top wall of the installation cavity (3).

4. The microneedle anesthetic device of claim 1, wherein, 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.

5. The microneedle anesthetic device of claim 4, wherein, The device further comprises a base plate (15), the base plate (15) is connected with the side of the medicine storage sponge (10) which is towards the through hole (19), the microneedles (17) are connected with the side of the base plate (15) which is opposite to the medicine storage sponge (10), and the base plate (15) is provided with a base channel (16) which is communicated with the medicine delivery channel and the medicine storage gap.

6. The microneedle anesthetizing device according to any one of claims 1 to 3, characterized by, The shell (1) is provided with an installation groove (4) on the outer wall surface of the shell (1), the medicine inlet hole (5) is arranged on the groove bottom wall of the installation groove (4), and the medicine bag (13) is arranged in the installation groove (4).

7. The microneedle anesthetic device of claim 6, wherein, The device further comprises a medicine inlet pipe (14), the medicine inlet pipe (14) is arranged in the medicine inlet hole (5), and the medicine inlet pipe (14) is connected between the medicine bag (13) and the medicine storage sponge (10).

8. The microneedle anesthetic device of claim 1, wherein, The device further comprises sandpaper (8), the sandpaper (8) is arranged on the outer wall surface of the shell (1), and the sandpaper (8) is used for polishing the skin of a person.

9. The microneedle anesthetic device of claim 8, wherein, The side of the sandpaper (8) which is opposite to the shell (1) is provided with a tearable protective film (7).

10. The microneedle anesthetic device of claim 1, wherein, The cavity side wall of the installation cavity (3) is provided with a waterproof layer.

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