Microneedle injection treatment device

Abstract

The utility model discloses a microneedle injection treatment device, and relates to the technical field of medical instruments, the microneedle injection treatment device comprises a liquid storage barrel, an injection needle assembly and an extrusion assembly, the liquid storage barrel is provided with a liquid storage cavity, and the bottom of the liquid storage barrel is provided with an opening communicated with the liquid storage cavity; the injection needle assembly comprises a mounting plate, a plurality of microneedles and / or a plurality of plugging pieces, the mounting plate is detachably mounted at the opening of the liquid storage barrel, a plurality of mounting holes communicated with the liquid storage cavity are formed in the mounting plate, each microneedle is provided with a needle head part and a needle tail part, the needle tail part is detachably mounted in the mounting hole, the needle head part extends downwards, and the plugging pieces are arranged on the needle head part. And the plugging pieces are detachably mounted in the mounting holes, the plugging pieces are used for plugging the mounting holes, and the plugging pieces are mounted in the mounting holes, in which the microneedles are not mounted, in the mounting plate. The utility model aims to enable the microneedle treatment device to adjust the layout and the number of the microneedles according to sick skins of different shapes of different patients.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a microneedle injection treatment device. Background Art

[0002] Microneedle treatment is an injection treatment method for treating some skin diseases. Generally, multiple microneedles are arranged to pierce into the diseased skin simultaneously while injecting liquid medicine. However, since the positions and arrangements of the multiple microneedles are fixed, for different patients with different conditions, such as keloid patients, the shapes and sizes of their scar tissues are different. At this time, using microneedle treatment may stab the skin other than the scar tissue. Therefore, it has become an urgent problem in this field to design a microneedle injection treatment device that can adjust the layout and quantity of microneedles according to the different shapes of the diseased skin of different patients. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a microneedle injection treatment device, aiming to enable the microneedle treatment device to adjust the layout and quantity of multiple microneedles according to the different shapes of the diseased skin of different patients.

[0004] To achieve the above purpose, the microneedle injection treatment device provided by the utility model includes:

[0005] A liquid storage barrel, which is provided with a liquid storage cavity, and an opening communicating with the liquid storage cavity is formed at the bottom of the liquid storage barrel;

[0006] An injection needle assembly, which includes a mounting plate, multiple microneedles and / or multiple blocking members. The mounting plate is detachably mounted at the opening of the liquid storage barrel. The mounting plate is provided with multiple mounting holes communicating with the liquid storage cavity. The microneedle has a needle head part and a needle tail part. The needle tail part is detachably mounted in the mounting hole. The needle head part extends downward. The blocking member is detachably mounted in the mounting hole, and the blocking member is used for blocking the mounting hole;

[0007] An extrusion assembly, which includes an extrusion plate. The extrusion plate is located in the liquid storage cavity, and the extrusion plate is used for squeezing the liquid medicine in the liquid storage cavity downward so that the liquid medicine flows out from the microneedle;

[0008] The blocking member is mounted in the mounting hole on the mounting plate where the microneedle is not mounted. The diameter of the microneedle is 0.2 mm to 0.5 mm.

[0009] In one embodiment, the side wall surface of the mounting hole is provided with a thread, the side wall of the needle tail part is provided with a thread, and the side wall of the blocking member is provided with a thread. The needle tail part and the blocking member are detachably connected to the mounting hole through the thread.

[0010] In one embodiment, an installation frame is provided at the edge of the installation plate. A plugging groove is formed on the top surface of the installation frame. A protruding portion protrudes from the bottom of the liquid storage barrel, and the protruding portion is inserted into the plugging groove, and the protruding portion is detachably and sealingly connected to the plugging groove.

[0011] In one embodiment, the installation frame is made of rubber material, and the protruding portion and the plugging groove are in interference fit.

[0012] In one embodiment, a handle is fixed to the outside of the installation frame.

[0013] In one embodiment, a plurality of the installation holes are arranged in a uniform array.

[0014] In one embodiment, the microneedle injection treatment device further includes a housing, the housing is provided with a hollow structure penetrating up and down, the liquid storage barrel and the injection needle assembly are slidably arranged in the hollow structure, and the lowest point of the needle head is higher than the bottom surface of the housing.

[0015] In one embodiment, a holding ring is provided at the bottom of the housing, the holding ring is fixed to the outer side wall of the bottom of the housing, and the holding ring is used for holding the skin.

[0016] In one embodiment, a soft pad is provided on the bottom surface of the holding ring.

[0017] In one embodiment, the openings of the installation plate and the liquid storage barrel are connected by threads to achieve detachable and sealing connection.

[0018] In the technical solution provided by the present utility model, by providing an injection needle assembly detachably connected to the liquid storage barrel, and setting the injection needle assembly as a plurality of microneedles, the plurality of microneedles are detachably arranged on the installation plate, and the layout and quantity of the microneedles can be adjusted according to the diseased skin of different shapes of different patients. After setting the microneedles, the installation holes without microneedles are sealed with a plugging member. In this way, the skin other than the scar tissue will not be stabbed during the injection process. Even if the preparation work before the first injection takes a long time, as long as the adjustment is made, subsequent multiple treatment processes do not need to be adjusted again, improving the efficiency and effect of the injection treatment and enhancing the applicability of the product. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1Schematic perspective view of an embodiment of the microneedle injection treatment device provided by the present utility model;

[0021] Figure 2 Explosion diagram of an embodiment of the microneedle injection treatment device provided by the present utility model;

[0022] Figure 3 Schematic cross-sectional view of an embodiment of the microneedle injection treatment device provided by the present utility model;

[0023] Figure 4 Schematic diagram of the injection needle assembly.

[0024] Explanation of the reference numerals in the drawings:

[0025] 1000, microneedle injection treatment device; 1, outer shell; 11, abutting ring; 2, liquid storage barrel; 21, liquid storage cavity; 22, protruding part; 3, injection needle assembly; 31, mounting plate; 311, mounting hole; 312, mounting frame; 313, insertion slot; 314, handle; 32, microneedle; 33, plugging member; 4, extrusion assembly; 41, extrusion plate.

[0026] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] In the prior art, the method of injection using an injection needle requires multiple penetrations into the scar tissue of the patient, and the patient will suffer great pain.

[0031] To solve this technical problem, the present utility model provides a microneedle injection treatment device 1000 to reduce the number of penetrations during the injection treatment of keloids, reduce the pain of penetration, and relieve the pain suffered by keloid patients during the injection treatment.

[0032] Please refer to Figures 1 to 4 , the microneedle injection treatment device 1000 includes:

[0033] A liquid storage barrel 2, the liquid storage barrel 2 is provided with a liquid storage cavity 21, and an opening communicating with the liquid storage cavity 21 is opened at the bottom of the liquid storage barrel 2;

[0034] An injection needle assembly 3, the injection needle assembly 3 includes a mounting plate 31, a plurality of microneedles 32 and / or a plurality of plugging members 33. The mounting plate 31 is detachably mounted at the opening of the liquid storage barrel 2. The mounting plate 31 is provided with a plurality of mounting holes 311 communicating with the liquid storage cavity 21. The microneedle 32 is provided with a needle head portion and a needle tail portion. The needle tail portion is detachably mounted in the mounting hole 311, and the needle head portion extends downward. The plugging member 33 is detachably mounted in the mounting hole 311, and the plugging member 33 is used to plug the mounting hole 311;

[0035] An extrusion assembly 4, the extrusion assembly 4 includes an extrusion plate. The extrusion plate is located in the liquid storage cavity 21, and the extrusion plate is used to squeeze the liquid medicine in the liquid storage cavity 21 downward so that the liquid medicine flows out from the microneedle 32.

[0036] The plugging member 33 is mounted in the mounting hole 311 on the mounting plate 31 where the microneedle 32 is not mounted.

[0037] By providing an injection needle assembly 3 detachably connected to the liquid storage barrel 2 and arranging the injection needle assembly 3 as a plurality of microneedles 32 detachably arranged on the mounting plate 31, the layout and quantity of the microneedles 32 can be adjusted according to the diseased skin of different shapes of different patients. After the microneedles 32 are arranged, the mounting holes 311 without microneedles 32 are sealed with a plugging member 33. In this way, the skin other than the scar tissue will not be pricked during the injection process. Even if the preparation work before the first injection takes a long time, as long as the adjustment is made, subsequent multiple treatment processes do not need to be adjusted again, improving the efficiency and effect of the injection treatment and enhancing the applicability of the product.

[0038] In addition, the mounting plate 31 is detachably mounted at the opening of the liquid storage barrel 2. When it is necessary to replace the microneedles 32, the mounting plate 31 can be removed first and then replaced, making the replacement process more convenient.

[0039] Among them, the diameter of the microneedles 32 is between 0.2 mm and 0.5 mm, which can be selected according to the conditions of different patients. The diameters of the microneedles 32 are 0.2 mm, 0.3 mm, 0.4 mm, and 0.5 mm. When the diameter of the microneedles 32 is 0.2 mm, the pain when the microneedles 32 pierce the skin is relatively small. When the diameter of the microneedles 32 is 0.5 mm, the injection speed of the liquid medicine is faster. The diameter of the needle tail is larger than that of the needle head, making the needle tail more convenient for detachable connection with the mounting hole 311.

[0040] In an embodiment of the present utility model, the extrusion assembly 4 further includes an extrusion rod (not labeled). An opening is provided at the top of the liquid storage barrel 2. In one embodiment, the extrusion rod passes through the opening and is connected to the extrusion plate. After the doctor inserts the plurality of microneedles 32 into the scar tissue, the extrusion rod is pressed to make the extrusion plate extrude downward. In this embodiment, the extrusion assembly 4 further includes a driving member located above the extrusion rod for driving the extrusion rod to move downward. The driving member can be a micro electric push rod or a motor driving structure. By using the driving member to push the extrusion rod, manual injection by the doctor is not required, improving the injection efficiency.

[0041] In an embodiment of the present utility model, the side wall surface of the mounting hole 311 is provided with a thread, the side wall of the needle tail is provided with a thread, and the side wall of the plugging member 33 is provided with a thread. The needle tail and the plugging member 33 are detachably connected to the mounting hole 311 through the thread. The threaded connection method is relatively stable and not prone to liquid leakage.

[0042] In an embodiment of the present utility model, the needle tail and the plugging member 33 are made of rubber material, and the needle tail and the plugging member 33 are in interference fit with the mounting hole 311. With this setting, the disassembly and assembly of the needle tail and the plugging member 33 are more convenient.

[0043] Please refer to Figures 1 to 3, in an embodiment of the present utility model, an installation frame 312 is provided at the edge of the installation plate 31. A plugging slot 313 is formed on the top surface of the installation frame 312. A protruding portion 22 protrudes from the bottom of the liquid storage barrel 2. The protruding portion 22 is inserted into the plugging slot 313, and the protruding portion 22 is detachably and sealingly connected to the plugging slot 313. The plugging slot 313 and the protruding portion 22 are used for plugging to achieve a detachable connection method, and the disassembly is relatively convenient.

[0044] Among them, the installation frame 312 is made of rubber material, and the protruding portion 22 and the plugging slot 313 are in interference fit. The rubber material has a certain deformation ability. When the protruding portion 22 is inserted into the installation frame 312, the plugging slot 313 of the installation frame 312 deforms slightly to achieve the stable installation of the installation frame 312 and the protruding portion 22.

[0045] In this embodiment, a handle 314 is fixed to the outside of the installation frame 312. When it is necessary to disassemble the installation plate 31, directly press down the handle 314 to remove the installation frame 312 from the bottom of the liquid storage barrel 2. When reinstalling the installation frame 312 onto the protruding portion 22, the handle 314 can also be hooked and pressed upward. Such a setting can make the installation and disassembly of the installation plate 31 more convenient.

[0046] In an embodiment of the present utility model, the openings of the installation plate 31 and the liquid storage barrel 2 are connected by threads to achieve a detachable and sealing connection. The threaded connection method is relatively stable and not prone to liquid leakage.

[0047] Please refer to Figure 4 , in an embodiment of the present utility model, a plurality of installation holes 311 are arranged in a uniform array. The uniformly arranged installation holes 311 keep the distances between the plurality of microneedles 32 consistent, and the uniformity of the injected liquid medicine is better.

[0048] Please refer to Figure 2 , in an embodiment of the present utility model, the microneedle injection treatment device 1000 further includes a housing 1. The housing 1 is provided with a hollow structure that penetrates up and down. The liquid storage barrel 2 and the injection needle assembly 3 are slidably arranged in the hollow structure, and the lowest point of the needle head is higher than the bottom surface of the housing 1. By providing the housing 1, during the injection operation, the bottom surface of the housing 1 is made to contact the skin, and then the microneedles 32 are inserted and the injection operation is performed, which can make the insertion and injection processes relatively stable and there will be no shaking phenomenon.

[0049] In this embodiment, a holding ring 11 is provided at the bottom of the housing 1. The holding ring 11 is fixed to the outer side wall of the bottom of the housing 1, and the holding ring 11 is used to hold the skin. A soft pad is provided on the bottom surface of the holding ring 11. The provision of the holding ring 11 increases the contact area with the skin, further improves the stability, and at the same time, a soft pad is provided on the bottom surface of the holding ring 11 to improve the comfort of the patient.

[0050] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A microneedle injection treatment device, characterized in that: The microneedle injection treatment device comprises: A liquid storage barrel, wherein the liquid storage barrel is provided with a liquid storage cavity, and an opening communicating with the liquid storage cavity is formed at the bottom of the liquid storage barrel; An injection needle assembly, the injection needle assembly comprising a mounting plate, a plurality of microneedles and / or a plurality of blocking members, the mounting plate being detachably mounted at the opening of the liquid storage barrel, the mounting plate being provided with a plurality of mounting holes communicating with the liquid storage chamber, the microneedle being provided with a needle head and a needle tail, the needle tail being detachably mounted in the mounting hole, the needle head being extended downwardly, the blocking member being detachably mounted in the mounting hole, and the blocking member being used to block the mounting hole; An extrusion assembly, the extrusion assembly comprising an extrusion plate, the extrusion plate being located in the liquid storage cavity, the extrusion plate being used to squeeze the liquid medicine in the liquid storage cavity downward so that the liquid medicine flows out of the microneedle; The blocking member is installed in the installation hole on the installation plate where the microneedle is not installed, and the diameter of the microneedle is 0.2 mm to 0.5 mm.

2. The microneedle injection treatment device according to claim 1, characterized in that: The side wall of the mounting hole is provided with threads, the side wall of the needle tail is provided with threads, and the side wall of the blocking piece is provided with threads. The needle tail and the blocking piece are detachably connected to the mounting hole through threads.

3. The microneedle injection treatment device according to claim 1, characterized in that: The edge of the mounting plate is provided with a mounting frame, the top surface of the mounting frame is provided with a plug-in slot, the bottom of the liquid storage barrel is provided with a protruding portion, the protruding portion is inserted into the plug-in slot, and the protruding portion is sealed and detachably connected to the plug-in slot.

4. The microneedle injection treatment device according to claim 3, characterized in that: The installation frame is made of rubber material, and the protrusion is interference-fitted with the plug-in slot.

5. The microneedle injection treatment device according to claim 4, characterized in that: A handle is fixed on the outside of the installation frame.

6. The microneedle injection treatment device according to claim 1, characterized in that: The plurality of mounting holes are evenly arranged in an array.

7. The microneedle injection treatment device according to claim 1, characterized in that: The microneedle injection treatment device also includes a shell, which is provided with a hollow structure penetrating from top to bottom, the liquid storage barrel and the injection needle assembly are slidably arranged in the hollow structure, and the lowest point of the needle head is higher than the bottom surface of the shell.

8. The microneedle injection treatment device according to claim 7, characterized in that: The bottom of the shell is provided with a supporting ring, which is fixed to the bottom outer side wall of the shell and is used for supporting the skin.

9. The microneedle injection treatment device according to claim 8, characterized in that: The bottom surface of the supporting ring is provided with a soft cushion.

10. The microneedle injection treatment device according to claim 1, characterized in that: The mounting plate and the opening of the liquid storage barrel are connected by threads to achieve a sealed and detachable connection.

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