Skin administration device for animal experiment with anti-falling function

Abstract

This utility model discloses a skin drug delivery device for animal experiments with anti-detachment function, relating to the field of skin drug delivery technology. It includes a power supply chamber, a release button, a drug delivery tube, a threaded ring sleeve, and a locking pin. The release button is slidably connected to the side of the power supply chamber. A spring is provided on the left side of the release button, and a locking pin, a limiting groove, an adjusting plate, a threaded push rod, and a piston are provided below the release button. A guide strip is provided on the side of the adjusting plate, and a limiting ring, a threaded ring sleeve, and an elastic ring are provided below the guide strip. A drug delivery tube and a guide head are provided below the power supply chamber. This device prevents direct contact and potential injury / pain by maintaining a one-centimeter gap between the drug delivery tube and the bottom of the guide head. The four guide strips arranged in a circular, evenly spaced pattern provide a force point while achieving compression and upward movement. Furthermore, the drug delivery method, which penetrates the skin, completely avoids the detachment that occurs with traditional needle injections.

Description

Technical Field

[0001] This utility model relates to the field of skin drug delivery technology, specifically to a skin drug delivery device for animal experiments with anti-shedding function. Background Technology

[0002] Transdermal drug delivery refers to a route of drug administration that delivers medication through the skin to achieve local or systemic therapeutic purposes. It is the third largest drug delivery system after oral and injection, minimizing the pain of injections and avoiding the risk of infection. However, existing transdermal drug delivery devices still have some shortcomings, such as:

[0003] The "skin delivery device" with application number CN209500522U is designed as a handheld device without an anti-drop mechanism. In actual use, prolonged handholding can easily cause the arm to become sore and the device to shift, resulting in it falling off and affecting the drug delivery effect. Utility Model Content

[0004] The purpose of this invention is to provide a skin drug delivery device for animal experiments with an anti-fall-off function, in order to solve the problem mentioned in the background art that the existing devices are designed as handheld structures and do not have an anti-fall-off mechanism. In actual use, long-term handheld use can easily cause the arm to become sore and shift, resulting in the device falling off and affecting the drug delivery effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a skin drug delivery device for animal experiments with anti-detachment function, comprising a power supply chamber, a release button, a drug delivery tube, a threaded ring, and a locking pin.

[0006] The energy supply compartment is slidably connected to a release button on its side. A spring is provided on the left side of the release button, and a locking pin, a limiting groove, an adjusting plate, a threaded push rod, and a piston are provided below the release button. A guide strip is provided on the side of the adjusting plate, and a limiting ring, a threaded ring sleeve, and an elastic ring are provided below the guide strip. A drug delivery tube and a flow guide head are provided below the energy supply compartment.

[0007] As a preferred technical solution of this utility model, the release button is slidably connected to the side of the energy supply compartment, and the left side of the release button is a square structure with hollowed-out inner side. The left side of the release button is provided with a square protrusion structure, and the right side of the release button is a cylindrical structure. One end of the spring is fixedly connected to the left side of the release button, and one end of the release button is fixedly connected to the inner wall of the energy supply compartment.

[0008] By adopting the above technical solution, the device can be more ergonomically designed by sliding the release button to the side of the power supply compartment, making it easier to hold while achieving rapid triggering.

[0009] As a preferred technical solution of this utility model, the energy supply chamber is a cylindrical structure, the bottom of the energy supply chamber is a hemispherical structure, and the energy supply chamber is U-shaped. The drug delivery tube is rotatably connected to the bottom of the energy supply chamber, and a limiting ring is fitted between the energy supply chamber and the drug delivery tube.

[0010] By adopting the above technical solution, the device can set a limiting ring between the power supply chamber and the drug delivery tube, and the limiting ring can set the power supply chamber and the drug delivery tube into a segmented structure, allowing both ends to rotate freely, which can effectively ensure the flexibility of the device.

[0011] As a preferred technical solution of this utility model, the flow guide head is fixedly connected to the bottom of the drug delivery tube, and a gap of one centimeter is maintained between the drug delivery tube and the bottom of the flow guide head. The guide strip is fixedly connected to the inside of the power supply chamber, and there are four guide strips arranged in a circular and uniform manner.

[0012] By adopting the above technical solution, the device can prevent direct contact and thus avoid injury and pain by maintaining a one-centimeter gap between the drug delivery tube and the bottom of the guide head. The four guide strips arranged in a circular and uniform manner can provide force points while achieving compression and upward movement. Furthermore, the injection method of penetrating the skin can completely avoid the detachment that occurs with traditional needle injections.

[0013] As a preferred technical solution of this utility model, the threaded ring sleeve is slidably connected to the drug delivery tube, the drug delivery tube is configured with a two-section structure, the drug delivery tube as a whole is a torch-shaped structure, the limiting ring is rotatably connected to the top of the drug delivery tube, and the upper and lower ends of the threaded ring sleeve are fixedly connected to elastic rings;

[0014] By adopting the above technical solution, the device can provide sufficient room for movement of the threaded ring by making the entire drug delivery tube into a torch-shaped structure. The upper and lower ends of the threaded ring are fixedly connected with elastic rings, which can be used to ensure the automatic expansion of the device.

[0015] As a preferred technical solution of this utility model, the adjusting disk is slidably connected to the inner side of the guide bar, and the limiting groove is opened on the edge of the adjusting disk. The limiting groove matches the structure of the guide bar. The upper surface of the adjusting disk is fixedly connected to the locking pin, which has a square structure and a square groove structure is opened on the side of the locking pin.

[0016] By adopting the above technical solution, the device can achieve locking by opening a square groove structure on the side of the locking pin, while ensuring the stability of the movement of the locking pin through the square structure and preventing the locking pin from shifting.

[0017] As a preferred embodiment of this utility model, the threaded push rod is fixedly connected to the bottom of the adjusting disc, the threaded push rod has a square structure with a fixed thread on the side, the piston is fixedly connected to the bottom of the threaded push rod, and the threaded push rod is slidably connected to the inside of the drug delivery tube.

[0018] By adopting the above technical solution, the device can reduce its size while ensuring sufficient meshing area by fixing the threaded push rod to a square structure with threads on the side. The piston is fixedly connected to the bottom of the threaded push rod, which can provide the piston with the most direct propulsive force and ensure the injection efficiency of the device.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By sliding the release button to the side of the power supply compartment, this device can be more ergonomically designed, making it easier to hold while enabling quick triggering;

[0021] 2. By installing a limiting ring between the power supply chamber and the drug delivery tube, the device can be configured as a segmented structure, allowing both ends to rotate freely, which can effectively ensure the flexibility of the device.

[0022] 3. This device prevents direct contact and pain by maintaining a one-centimeter gap between the drug delivery tube and the bottom of the guide head. The four guide strips arranged in a circular and evenly distributed manner provide force points while achieving compression and upward movement. Furthermore, the injection method that allows the drug to penetrate the skin completely avoids the detachment that can occur with traditional needle injections.

[0023] 4. By making the entire drug delivery tube into a torch-shaped structure, this device can provide sufficient room for the threaded ring sleeve to move. The upper and lower ends of the threaded ring sleeve are fixedly connected to elastic rings, which can be used to ensure the automatic expansion of the device.

[0024] A square groove structure is provided on the side of the pin;

[0025] 5. By adopting the above technical solution, the device can achieve locking by opening a square groove structure on the side of the locking pin, while ensuring the stability of the movement of the locking pin through the square structure and preventing the locking pin from shifting.

[0026] 6. By using a square-shaped threaded push rod with fixed threads on the side, this device can reduce its size while ensuring sufficient meshing area. The piston is fixedly connected to the bottom of the threaded push rod, which can provide the piston with the most direct propulsive force, ensuring the injection efficiency of the device. Attached Figure Description

[0027] Figure 1 This is a side view of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the adjusting disc and threaded push rod structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the energy supply compartment and limiting ring structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the threaded ring sleeve and elastic ring structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the limiting groove and adjusting disc structure of this utility model;

[0032] Figure 6 This is a schematic diagram of the release button and spring structure of this utility model.

[0033] In the diagram: 1. Power supply chamber; 2. Release button; 3. Dosing tube; 4. Threaded ring sleeve; 5. Spring; 6. Limiting groove; 7. Adjusting disc; 8. Elastic ring; 9. Guide head; 10. Threaded push rod; 11. Limiting ring; 12. Piston; 13. Guide bar; 14. Locking pin. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figure 1 - Figure 6 The present invention provides a skin drug delivery device for animal experiments with anti-detachment function, comprising an energy supply chamber 1, a release button 2, a drug delivery tube 3, a threaded ring 4, a spring 5, a limiting groove 6, an adjusting disc 7, an elastic ring 8, a guide head 9, a threaded push rod 10, a limiting ring 11, a piston 12, a guide bar 13, and a locking pin 14.

[0036] A release button 2 is slidably connected to the side of the power supply chamber 1. The release button 2 has a square structure with an open inner side and a square protrusion on its left side. The right side of the release button 2 is cylindrical. One end of a spring 5 is fixedly connected to the left side of the release button 2, and the other end of the release button 2 is fixedly connected to the inner wall of the power supply chamber 1. This device, by sliding the release button 2 to the side of the power supply chamber 1, is more ergonomically designed, making it easier to hold and enabling quick triggering. The release button 2 has a spring 5 on its left side. The power supply chamber 1 has a cylindrical structure overall, with a hemispherical bottom and a U-shape. The drug delivery tube 3 is rotatably connected to the bottom of the power supply chamber 1. The power supply chamber 1 and the drug delivery tube... A limiting ring 11 is fitted between the power supply chamber 1 and the drug delivery tube 3. This device uses the limiting ring 11 to create a segmented structure between the power supply chamber 1 and the drug delivery tube 3, allowing both ends to rotate freely. This effectively ensures the flexibility of the device. Below the release button 2 are a locking pin 14, a limiting groove 6, an adjusting disc 7, a threaded push rod 10, and a piston 12. A guide strip 13 is provided on the side of the adjusting disc 7. The guide head 9 is fixedly connected to the bottom of the drug delivery tube 3, with a one-centimeter gap maintained between the drug delivery tube 3 and the bottom of the guide head 9. The guide strips 13 are fixedly connected inside the power supply chamber 1, and there are four guide strips 13 arranged evenly in a circle. This device prevents direct contact and damage by maintaining a one-centimeter gap between the drug delivery tube 3 and the bottom of the guide head 9. The guide strips 13, arranged in a circular, even pattern, provide force points while achieving compression and upward movement. The injection method, allowing the medication to penetrate the skin, completely avoids the risk of dislodgement that occurs with traditional needle injections. Below the guide strips 13 are a limiting ring 11, a threaded ring sleeve 4, and an elastic ring 8. The threaded ring sleeve 4 is slidably connected to the drug delivery tube 3. The drug delivery tube 3 has a two-section structure, with the overall tube being torch-shaped. The limiting ring 11 is rotatably connected to the top of the drug delivery tube 3. The threaded ring sleeve 4 is fixedly connected to the elastic ring 8 at both ends. This device, by making the drug delivery tube 3 torch-shaped, provides sufficient space for the threaded ring sleeve 4 to move. The elastic ring 8, fixedly connected to the top and bottom ends of the threaded ring sleeve 4, ensures the automatic expansion of the device and the power supply compartment. Below, a drug delivery tube 3 and a guide head 9 are arranged. An adjusting plate 7 is slidably connected to the inner side of a guide strip 13, and a limiting groove 6 is formed on the edge of the adjusting plate 7. The limiting groove 6 and the guide strip 13 are structurally matched. A locking pin 14 is fixedly connected to the upper surface of the adjusting plate 7. The locking pin 14 has a square structure and a square groove structure on its side. This device can achieve locking by the square groove structure on the side of the locking pin 14, while ensuring the stability of the movement of the locking pin 14 by the square structure, preventing the locking pin 14 from deviating. A threaded push rod 10 is fixedly connected to the bottom of the adjusting plate 7. The threaded push rod 10 has a square structure with a fixed thread on its side. A piston 12 is fixedly connected to the bottom of the threaded push rod 10. The threaded push rod 10 is slidably connected to the inner side of the drug delivery tube 3.This device reduces size while ensuring sufficient meshing area by using a square-shaped threaded push rod 10 with threads fixed to its side. The piston 12 is fixedly connected to the bottom of the threaded push rod 10, providing the piston 12 with the most direct propulsive force and ensuring the device's injection efficiency.

[0037] Working principle: When using this animal experimental skin drug delivery device with anti-detachment function, first hold the drug delivery tube 3 and insert the bottom of the drug delivery tube 3 into the drug solution. Then, press the threaded ring sleeves 4 on both sides. The threaded ring sleeves 4 will clamp the threaded push rod 10. Then, by rotating the power supply chamber 1, the piston 12 will be pulled up by the guide bar 13 and the adjusting plate 7, and the drug solution will be drawn into the guide head 9. The spring 5 above the adjusting plate 7 will be compressed. As the adjusting plate 7 rises, the guide bar 13 will be inserted into the release button 2. The release button 2 will lock the guide bar 13. Then, release the threaded ring sleeves 4. That is, press the release button 2 to achieve rapid injection.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A skin administration device for animal experiments with anti-falling function, comprising an energy supply bin (1), a release button (2), an administration tube (3), a threaded ring (4) and a locking bolt (14), characterized in that: The energy supply chamber (1) is slidably connected to a release button (2) on its side. A spring (5) is provided on the left side of the release button (2), and a locking pin (14), a limiting groove (6), an adjusting plate (7), a threaded push rod (10), and a piston (12) are provided below the release button (2). A guide strip (13) is provided on the side of the adjusting plate (7), and a limiting ring (11), a threaded ring sleeve (4), and an elastic ring (8) are provided below the guide strip (13). A drug delivery tube (3) and a guide head (9) are provided below the energy supply chamber (1).

2. The skin administration device with a fall-off prevention function for animal experiments according to claim 1, characterized in that, The release button (2) is slidably connected to the side of the power supply compartment (1).

3. The skin drug delivery device for animal experiments with anti-detachment function according to claim 2, characterized in that, The left side of the release button (2) is a square structure with a hollowed-out inner side. The left side of the release button (2) is provided with a square protrusion structure. The right side of the release button (2) is a cylindrical structure. One end of the spring (5) is fixedly connected to the left side of the release button (2), and one end of the release button (2) is fixedly connected to the inner wall of the power supply chamber (1).

4. The skin drug delivery device for animal experiments with anti-detachment function according to claim 1, characterized in that, The energy supply chamber (1) is cylindrical in shape, the bottom of the energy supply chamber (1) is hemispherical, and the energy supply chamber (1) is U-shaped in shape. The drug delivery tube (3) is rotatably connected to the bottom of the energy supply chamber (1).

5. The skin drug delivery device for animal experiments with anti-detachment function according to claim 1, characterized in that, The limiting ring (11) is fitted between the energy supply chamber (1) and the drug delivery tube (3).

6. The skin drug delivery device for animal experiments with anti-detachment function according to claim 1, characterized in that, The guide head (9) is fixedly connected to the bottom of the administration tube (3), and a gap of one centimeter is maintained between the administration tube (3) and the bottom of the guide head (9).

7. The skin drug delivery device for animal experiments with anti-detachment function according to claim 1, characterized in that, The guide strip (13) is fixedly connected to the inside of the energy supply compartment (1), and there are four guide strips (13) arranged in a circular and uniform manner.

8. The skin drug delivery device for animal experiments with anti-detachment function according to claim 1, characterized in that, The threaded sleeve (4) is slidably connected to the administration tube (3). The administration tube (3) is configured as a two-section structure. The administration tube (3) is a torch-shaped structure. The limiting ring (11) is rotatably connected to the upper part of the administration tube (3). The upper and lower ends of the threaded sleeve (4) are fixedly connected to the elastic ring (8).

9. The skin drug delivery device for animal experiments with anti-detachment function according to claim 1, characterized in that, The adjusting plate (7) is slidably connected to the inner side of the guide strip (13), and the limiting groove (6) is opened on the edge of the adjusting plate (7). The limiting groove (6) matches the structure of the guide strip (13). The upper surface of the adjusting plate (7) is fixedly connected to the locking pin (14). The locking pin (14) has a square structure, and a square groove structure is opened on the side of the locking pin (14).

10. The skin drug delivery device for animal experiments with anti-detachment function according to claim 1, characterized in that, The threaded push rod (10) is fixedly connected to the bottom of the adjusting plate (7). The threaded push rod (10) has a square structure with a fixed thread on the side. The piston (12) is fixedly connected to the bottom of the threaded push rod (10). The threaded push rod (10) is slidably connected to the inside of the drug delivery tube (3).

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