Needle-free interferon injection device

Abstract

The utility model relates to the technical field of medical instruments, in particular to an interferon needleless injection device which comprises an injection gun, a medicine storage piece and an injection mechanism, the injection gun is provided with a groove, the medicine storage piece is arranged in the groove, and the medicine storage piece is provided with an injection port. The injection mechanism comprises a pressing piece, a telescopic rod, an abutting piece, a stress piece, a first spring, a piston rod, a piston plate and a second spring, the injection gun is further provided with a mounting groove and a through hole, the through hole communicates with the mounting groove, the piston plate is matched with the medicine storage piece, one end of the piston rod is fixedly connected with the piston plate, and the other end of the piston rod is fixedly connected with the stress piece; one end of the first spring is fixedly connected with the stress piece, the other end of the first spring is fixedly connected with the injection gun, the abutting piece is provided with a first abutting face, the pressing piece is in sliding connection with the through hole, the abutting piece is provided with a second abutting face, and the abutting piece makes contact with the first abutting face, in this way, continuous injection can be more conveniently conducted, and the injection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an interferon needle-free injection device. Background Art

[0002] Interferon, the name of Western medicine, is a type of glycoprotein. It is highly species-specific, so animal interferon is ineffective for humans. Interferon has antiviral, cell proliferation inhibition, immune regulation and anti-tumor effects. For the injection of interferon, some methods use needle-free syringes. Needle-free syringes are a type of syringe that generates power through the release of energy from a first spring, pressurizes the drug solution, and allows the high-pressure drug solution to form a high-speed jet through tiny holes, penetrate the human skin, and enter the subcutaneous muscle tissue to complete the injection. Due to its space limitations, the existing needle-free syringe fixed drug gun can only inject a certain dose and has a small scope of application.

[0003] In response to the above problems, the prior art patent publication number CN 212395536U discloses a needle-free syringe, which can be adjusted according to the amount of injected medicine by cooperating with a card button and a plurality of card slots. The card slot position is selected according to the amount of medicine to be injected, the card button is pushed to the selected card slot position, and the card button is inserted into the card slot to connect the injection part and the power part of the needle-free syringe; the injection port of the needle-free syringe is aligned with the injection site, and the card button is turned so that the card button is disengaged from the card slot, and the push head is forced to move in the direction of the medicine bag, so that the medicine in the medicine bag is sprayed out, and the injection is completed.

[0004] However, in the above method, when continuous injection is required, the button needs to be repeatedly reset to a specified position and then pushed again to inject, which is cumbersome and results in a slow injection efficiency. Utility Model Content

[0005] The utility model aims to provide an interferon needle-free injection device, aiming to solve the technical problem in the prior art that when continuous injection is required, the card button needs to be repeatedly reset to a specified position and then pushed again for injection, which is cumbersome and leads to low injection efficiency.

[0006] To achieve the above-mentioned purpose, the utility model adopts an interferon needle-free injection device, including an injection gun, a drug storage part and an injection mechanism, the injection gun is provided with a groove, the drug storage part is arranged in the groove, the drug storage part is provided with an injection port, the injection mechanism includes a pressing part, a telescopic rod, a holding part, a force-bearing part, a first spring, a piston rod, a piston plate and a second spring, the injection gun is also provided with a mounting groove and a through hole, the through hole is communicated with the mounting groove, the piston plate is adapted to the drug storage part, and one end of the piston rod is fixedly connected to the piston plate The other end of the piston rod is fixedly connected to the force-bearing member, one end of the first spring is fixedly connected to the force-bearing member, the other end of the first spring is fixedly connected to the injection gun, the supporting member is provided with a first supporting surface, the pressing member is slidably connected to the through hole, the telescopic rod and the second spring are both provided between the pressing member and the injection gun, the supporting member is slidably connected to the injection gun, the supporting member is provided with a second supporting surface, the pressing member is in contact with the second supporting surface, and the supporting member is in contact with the first supporting surface.

[0007] Wherein, the injection mechanism further includes two sliding blocks, and the injection gun is further provided with two sliding grooves. The two sliding blocks are respectively slidably connected to the corresponding sliding grooves, and the two sliding blocks are fixedly connected to the force-bearing member.

[0008] Wherein, the abutting member includes a trapezoidal block and a abutting rod, the trapezoidal block contacts the pressing member, the abutting rod is fixedly connected to the trapezoidal block and slidably connected to the injection gun, and the abutting rod contacts the first abutting surface.

[0009] Wherein, the interferon needle-free injection device further comprises a locking mechanism, and the locking mechanism is arranged on the drug storage member.

[0010] Among them, the locking mechanism includes two groups of locking components, the locking components include a protrusion and a locking piece, the injection gun is also provided with two guide grooves, the protrusion is fixedly connected to the medicine storage member, the protrusion is slidably connected to the corresponding guide groove, the locking piece is inserted into the corresponding guide groove, and is tightened on the corresponding protrusion.

[0011] Wherein, the locking mechanism further comprises a force applying member, and the force applying member is arranged on the medicine storage member and located below the medicine storage member.

[0012] The utility model discloses an interferon needle-free injection device. By setting the injection mechanism, when it is used, interferon is added into the medicine storage part through the medicine adding port of the medicine storage part. Then, the injection gun is held and the pressing part is only pressed. The pressing part drives the second spring to contract and squeezes the second abutting surface, thereby driving the abutting part to move upward. When the abutting part moves upward, it slides on the injection gun. The abutting part abuts the first abutting surface, thereby making the abutting part drive the force-bearing part to move laterally. The force-bearing part drives the first spring to extend, and the force-bearing part drives the piston rod to move. The piston rod drives the piston plate to move. The piston plate squeezes the liquid medicine in the medicine storage part. The liquid medicine is squeezed to form a high-speed jet through the injection port, penetrates the human skin, and enters the subcutaneous muscle tissue. The pressing part is released, and all parts are reset. When continuous injection is performed, the pressing part is pressed again to complete the continuous injection. In this way, continuous injection can be performed more conveniently, thereby improving the injection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0015] Figure 2 It is a side view of the first embodiment of the utility model.

[0016] Figure 3 The utility model Figure 1 AA line structural cross-section view.

[0017] Figure 4 The utility model Figure 2 BB line structural cross-sectional view.

[0018] Figure 5 It is a structural schematic diagram of the second embodiment of the utility model.

[0019] Figure 6 It is a side view of the second embodiment of the utility model.

[0020] 101-injection gun, 102-drug storage, 103-pressing member, 104-telescopic rod, 105-force-bearing member, 106-first spring, 107-piston rod, 108-piston plate, 109-second spring, 110-slider, 111-trapezoidal block, 112-holding rod, 113-groove, 114-slide, 115-first holding surface, 116-second holding surface, 117-installing groove, 118-drug adding port, 119-injection port, 201-force-applying member, 202-bump, 203-locking member, 204-guide groove. DETAILED DESCRIPTION

[0021] First embodiment:

[0022] See also Figure 1 to Figure 4 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 is a side view of the first embodiment of the utility model, Figure 3 The utility model Figure 1 AA line structural section view, Figure 4 The utility model Figure 2 BB line structural cross-sectional view.

[0023] The utility model provides an interferon needle-free injection device, comprising an injection gun 101, a drug storage part 102 and an injection mechanism, wherein the injection mechanism comprises a pressing part 103, a telescopic rod 104, a holding part, a force-bearing part 105, a first spring 106, a piston rod 107, a piston plate 108, a second spring 109 and two sliding blocks 110, wherein the holding part comprises a trapezoidal block 111 and a holding rod 112. The above-mentioned scheme solves the technical problem in the prior art that when continuous injection is required, the card button needs to be repeatedly reset to a specified position and then the card button needs to be toggled again for injection, and the complicated steps lead to low injection efficiency.

[0024] According to this specific embodiment, the injection gun 101 is provided with a groove 113 , the medicine storage member 102 is disposed in the groove 113 , and the medicine storage member 102 is provided with an injection port 119 , and the injection port 119 is used for the medicine storage member 102 to dispense medicine for injection.

[0025] The injection gun 101 is further provided with a mounting groove 117 and a through hole, the through hole is communicated with the mounting groove 117, the piston plate 108 is adapted to the medicine storage member 102, one end of the piston rod 107 is fixedly connected to the piston plate 108, the other end of the piston rod 107 is fixedly connected to the force-bearing member 105, one end of the first spring 106 is fixedly connected to the force-bearing member 105, the other end of the first spring 106 is fixedly connected to the injection gun 101, and the abutting member is provided with a first abutting member. The pressing member 103 is slidably connected to the through hole, the telescopic rod 104 and the second spring 109 are both arranged between the pressing member 103 and the injection gun 101, the abutting member is slidably connected to the injection gun 101, the abutting member is provided with a second abutting surface 116, the pressing member 103 is in contact with the second abutting surface 116, and the abutting member is in contact with the first abutting surface 115. By setting the injection mechanism, when in specific use, interferon is injected into the drug storage member 102 through the drug adding port. 118 is added to the medicine storage member 102, and then the injection gun 101 is held, and the pressing member 103 is only required to be pressed, and the pressing member 103 drives the second spring 109 to contract and squeeze the second abutting surface 116, thereby driving the abutting member to move upward, and the abutting member slides on the injection gun 101 when moving upward, and the abutting member abuts the first abutting surface 115, so that the abutting member drives the force-bearing member 105 to move horizontally, and the force-bearing member 105 drives the first spring 106 The force-bearing member 105 drives the piston rod 107 to move, and the piston rod 107 drives the piston plate 108 to move. The piston plate 108 squeezes the liquid medicine in the medicine storage member 102. The liquid medicine is squeezed to form a high-speed jet through the injection port 119, penetrates the human skin, and enters the subcutaneous muscle tissue. The pressing member 103 is released, and all parts are reset. When continuous injection is required, the pressing member 103 is pressed again to complete the continuous injection. In this way, continuous injection can be carried out more conveniently and the injection efficiency is improved.

[0026] Secondly, the injection gun 101 is also provided with two slide grooves 114, and the two sliders 110 are respectively slidably connected to the corresponding slide grooves 114, and the two sliders 110 are fixedly connected to the force-bearing member 105. By providing the two sliders 110, when the force-bearing member 105 moves, the force-bearing member 105 drives the two sliders 110 to slide in the corresponding slide grooves 114 respectively, thereby improving the stability of the force-bearing member 105.

[0027] At the same time, the trapezoidal block 111 is in contact with the pressing piece 103, the supporting rod 112 is fixedly connected to the trapezoidal block 111 and is slidably connected to the injection gun 101, and the supporting rod 112 is in contact with the first supporting surface 115. By setting the trapezoidal block 111 and the supporting rod 112, the trapezoidal block 111 is squeezed to move when the pressing piece 103 moves, and the trapezoidal block 111 drives the supporting rod 112 to move.

[0028] When using the interferon needle-free injection device of this embodiment, by setting the injection mechanism, interferon is added into the drug storage member 102 through the drug adding port 118 of the drug storage member 102, and then the injection gun 101 is held, and only the pressing member 103 is pressed. The pressing member 103 drives the second spring 109 to contract and squeezes the second abutting surface 116, thereby driving the abutting member to move upward. When the abutting member moves upward, it slides on the injection gun 101, and the abutting member abuts the first abutting surface 115, so that the abutting member drives the force-bearing member. 105 moves laterally, the force-bearing member 105 drives the first spring 106 to extend, and the force-bearing member 105 drives the piston rod 107 to move, and the piston rod 107 drives the piston plate 108 to move, and the piston plate 108 squeezes the liquid medicine in the medicine storage member 102, and the liquid medicine is squeezed to form a high-speed jet through the injection port 119, penetrates the human skin, and enters the subcutaneous muscle tissue. Release the pressing member 103, and all parts are reset. When continuous injection is required, the pressing member 103 is pressed again to complete the continuous injection. In this way, continuous injection can be performed more conveniently and the injection efficiency is improved.

[0029] Second embodiment:

[0030] Based on the first embodiment, please refer to Figure 5 and Figure 6 , Figure 5 It is a structural schematic diagram of the second embodiment of the utility model. Figure 6 It is a side view of the second embodiment of the utility model.

[0031] The utility model provides an interferon needle-free injection device which also includes a locking mechanism. The locking mechanism includes two sets of locking components and a force applying member 201 . The locking component includes a protrusion 202 and a locking member 203 .

[0032] According to this specific embodiment, the locking mechanism is disposed on the medicine storage member 102 . By disposing the locking mechanism, the medicine storage member 102 can be easily installed and removed.

[0033] Among them, the injection gun 101 is also provided with two guide grooves 204, the protrusion 202 is fixedly connected to the medicine storage member 102, the protrusion 202 is slidably connected to the corresponding guide groove 204, the locking member 203 is inserted into the corresponding guide groove 204, and is tightened on the corresponding protrusion 202. When installing the medicine storage member 102, the two protrusions 202 are respectively aligned with the corresponding guide grooves 204 and pushed to the specified position, the locking member 203 is inserted into the corresponding guide groove 204, and is tightened on the corresponding protrusion 202, thereby completing the installation of the medicine storage member 102, otherwise it can be quickly disassembled.

[0034] Secondly, the force applying member 201 is disposed on the medicine storage member 102 and is located below the medicine storage member 102 . By providing the force applying member 201 , it is more convenient to apply force when installing and removing the medicine storage member 102 .

[0035] When installing the medicine storage member 102 using an interferon needle-free injection device of the present embodiment, the two protrusions 202 are aligned with the corresponding guide grooves 204 and pushed to the specified positions, and the locking member 203 is inserted into the corresponding guide groove 204 and tightened on the corresponding protrusion 202, thereby completing the installation of the medicine storage member 102. Otherwise, it can be quickly disassembled.

[0036] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. An interferon needle-free injection device, comprising an injection gun and a drug storage member, wherein the injection gun is provided with a groove, the drug storage member is arranged in the groove, and the drug storage member is provided with an injection port, characterized in that: Also included is an injection mechanism; The injection mechanism includes a pressing piece, a telescopic rod, a supporting piece, a force-bearing piece, a first spring, a piston rod, a piston plate and a second spring. The injection gun is also provided with a mounting groove and a through hole. The through hole is communicated with the mounting groove. The piston plate is adapted to the medicine storage piece. One end of the piston rod is fixedly connected to the piston plate, and the other end of the piston rod is fixedly connected to the force-bearing piece. One end of the first spring is fixedly connected to the force-bearing piece, and the other end of the first spring is fixedly connected to the injection gun. The supporting piece is provided with a first supporting surface. The pressing piece is slidably connected to the through hole. The telescopic rod and the second spring are both provided between the pressing piece and the injection gun. The supporting piece is slidably connected to the injection gun. The supporting piece is provided with a second supporting surface. The pressing piece contacts the second supporting surface, and the supporting piece contacts the first supporting surface.

2. The interferon needle-free injection device according to claim 1, characterized in that: The injection mechanism further includes two sliding blocks, and the injection gun is further provided with two sliding grooves. The two sliding blocks are respectively slidably connected to the corresponding sliding grooves, and the two sliding blocks are both fixedly connected to the force-bearing member.

3. The interferon needle-free injection device according to claim 2, characterized in that: The abutting member includes a trapezoidal block and an abutting rod, the trapezoidal block contacts the pressing member, the abutting rod is fixedly connected to the trapezoidal block and slidably connected to the injection gun, and the abutting rod contacts the first abutting surface.

4. The interferon needle-free injection device according to claim 3, characterized in that: The interferon needle-free injection device further comprises a locking mechanism, which is arranged on the drug storage member.

5. The interferon needle-free injection device according to claim 4, characterized in that: The locking mechanism includes two groups of locking assemblies, the two groups of locking assemblies, the locking assemblies include a protrusion and a locking piece, the injection gun is also provided with two guide grooves, the protrusion is fixedly connected to the medicine storage member, the protrusion is slidably connected to the corresponding guide groove, the locking piece is inserted into the corresponding guide groove, and is tightened on the corresponding protrusion.

6. The interferon needle-free injection device according to claim 5, characterized in that: The locking mechanism further comprises a force applying member, which is arranged on the medicine storage member and located below the medicine storage member.

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