Medicament injector convenient to disassemble

Abstract

The utility model relates to the field of medicament injectors, in particular to a medicament injector convenient to disassemble, which adopts the technical scheme that the medicament injector comprises an injection cylinder, a joint is arranged at the lower end of the injection cylinder, a needle head is inserted and connected into the joint, an outer sleeve is sleeved and mounted on the outer wall of the upper end of the injection cylinder, and an injection end plate is fixedly mounted at the upper end of the outer sleeve. A push rod is installed in the middle of the injection end plate in a sliding mode, the push rod penetrates through the injection end plate, a piston is installed at the lower end of the push rod, and a clamping plate is fixedly installed at the upper end of the inner wall of the injection cylinder. When the syringe is pulled out, the piston at the lower end of the push rod is pulled out by the clamping plate on the inner wall of the syringe, so that the polluted piston is left in the syringe, the effect of quickly disassembling the polluted part of the syringe is achieved, and then a new syringe, a new needle and a new piston are replaced and installed, so that the effects of saving medical material resources and reducing medical cost are achieved.

Description

Technical Field

[0001] The utility model relates to the field of medicine syringes, in particular to a medicine syringe which is easy to disassemble. Background Art

[0002] A medication syringe is a common medical device used to inject medication into the human body, typically subcutaneously, intramuscularly, or intravenously. It primarily consists of a syringe barrel, needle, and piston. In medical practice, medication syringes are widely used in various treatments and care procedures, including the administration of medications, antibiotics, and vaccines.

[0003] The existing technology has the following deficiencies: existing pharmaceutical syringes are usually designed for disposable use and are mostly one-piece structures. Most of them can only be disassembled and replaced with needles. However, in actual use, only the inner wall of the syringe barrel, the needle tube and the front end of the piston will be contaminated. Since medical staff wear medical gloves, the rest of the syringe will not be seriously contaminated. Therefore, the replacement frequency of different structural parts of the pharmaceutical syringe should be different; and traditional pharmaceutical syringes, due to their one-piece structure, can only be discarded after use, which may lead to a waste of medical material resources, thereby increasing the operating costs of medical institutions, and is not conducive to the development of modern pharmaceutical syringes towards a more green, environmentally friendly, economical and sustainable direction.

[0004] Therefore, it is necessary to invent a medicament syringe that is easy to disassemble. Utility Model Content

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medicine syringe that is easy to disassemble, comprising a syringe, a joint is provided at the lower end of the syringe, a needle is inserted into the joint, an outer sleeve is sleeved on the outer wall of the upper end of the syringe, an injection end plate is fixedly installed on the upper end of the outer sleeve, a push rod is slidably installed in the middle of the injection end plate, the push rod passes through the injection end plate, a piston is installed at the lower end of the push rod, the piston is slidably installed on the inner wall of the syringe, a clamping plate is fixedly installed on the upper end of the inner wall of the syringe, the syringe can be disassembled from the outer sleeve, and the clamping plate can pull out the piston at the lower end of the push rod during the disassembly of the syringe.

[0006] Preferably, the inner wall of the outer sleeve is provided with an internal thread, and the upper end of the outer wall of the injection barrel is provided with an external thread. When the outer sleeve is spirally sleeved on the upper end of the outer wall of the injection barrel, the internal thread is threadedly connected with the external thread.

[0007] Preferably, an injection push plate is fixedly mounted on the upper end of the push rod, and the lower end of the push rod is plug-in connected to the piston.

[0008] Preferably, the piston is made of rubber, the bottom of the piston is an inclined structure, and the top surface of the piston is a flat structure.

[0009] Preferably, the top surface of the card plate is an inclined structure, and the bottom surface of the card plate is a flat structure. When the push rod drives the piston to be pulled out of the syringe, the bottom surface of the card plate will clamp the top surface of the piston and separate the piston from the push rod.

[0010] Preferably, the needle is a detachable structure, and the needle can be pulled out from the connector.

[0011] Preferably, both ends of the injection end plate extend toward both sides, and the bottom surfaces of both ends of the extended injection end plate are provided with concave curved surfaces.

[0012] The beneficial effect of the present invention is that after the syringe is used, the syringe barrel and the needle that have come into contact with the medicine are disassembled by threaded removal, and the clamping plate on the inner wall of the syringe pulls out the piston at the lower end of the push rod while the syringe barrel is pulled out, so that the contaminated piston remains in the syringe, so as to achieve the effect of quickly disassembling the contaminated part of the syringe, and then replace and install a new syringe, needle and piston, which saves medical material resources and reduces medical costs, and is conducive to the development of modern medicine syringes in a more green, environmentally friendly, economical and sustainable direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A front view of the easily disassembled medicine syringe provided by the utility model;

[0014] Figure 2 A cross-sectional view of the easily disassembled medicine syringe provided by the present invention;

[0015] Figure 3 A schematic diagram of disassembling the syringe barrel of the easily disassembled medicament syringe provided by the present invention;

[0016] Figure 4 A schematic diagram of pulling out the piston of the easily disassembled medicine syringe provided by the present invention;

[0017] Figure 5 The present invention provides a schematic diagram of the disassembly of the needle of the easily disassembled medicine syringe.

[0018] In the figure: syringe 11, clamping plate 12, external thread 13, connector 14, needle 15, outer sleeve 21, injection end plate 22, push rod 23, injection push plate 24, piston 25, internal thread 26. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0020] Example 1

[0021] like Figure 1 As shown, the easily disassembled drug syringe in the embodiment of the first aspect of the present invention includes a syringe 11, a connector 14 is provided at the lower end of the syringe 11, a needle 15 is inserted into the connector 14, an outer sleeve 21 is sleeved on the outer wall of the upper end of the syringe 11, an injection end plate 22 is fixedly installed on the upper end of the outer sleeve 21, a push rod 23 is slidably installed in the middle of the injection end plate 22, the push rod 23 passes through the injection end plate 22, a piston 25 is installed at the lower end of the push rod 23, the piston 25 is slidably installed on the inner wall of the syringe 11, a clamping plate 12 is fixedly installed on the upper end of the inner wall of the syringe 11, the syringe 11 can be disassembled from the outer sleeve 21, and the clamping plate 12 can pull out the piston 25 at the lower end of the push rod 23 during the disassembly of the syringe 11.

[0022] In the above embodiment, it should be noted that after the syringe is used, the syringe barrel 11 and the needle 15 that have come into contact with the medicine are removed by threaded removal, and while the syringe barrel 11 is pulled out, the clamping plate 12 on the inner wall of the syringe barrel 11 pulls out the piston 25 at the lower end of the push rod 23, so that the contaminated piston 25 remains in the syringe 11, so as to achieve the effect of quickly removing the contaminated part of the syringe, and then replace and install a new syringe 11, needle 15 and piston 25, which saves medical material resources and reduces medical costs, and is conducive to the development of modern drug syringes in a more green, environmentally friendly, economical and sustainable direction.

[0023] Example 2

[0024] like Figure 1 As shown, the easily disassembled medicinal syringe includes all the contents of Example 1. In addition, the inner wall of the outer sleeve 21 is provided with an internal thread 26, and the upper end of the outer wall of the injection barrel 11 is provided with an external thread 13. When the outer sleeve 21 is screwed onto the upper end of the outer wall of the injection barrel 11, the internal thread 26 is threadedly connected with the external thread 13.

[0025] In the above embodiment, it should be noted that a sealing ring is provided at the upper end of the outer wall of the injection barrel 11. When the injection barrel 11 is threadedly installed on the outer sleeve 21, the sealing ring at the upper end of the outer wall of the injection barrel 11 presses against the bottom surface of the injection end plate 22 to play a sealing role.

[0026] Example 3

[0027] like Figure 1As shown, the easily disassembled medicinal syringe includes all the contents of Example 1. In addition, an injection push plate 24 is fixedly mounted on the upper end of the push rod 23, and the lower end of the push rod 23 is plug-in connected to the piston 25. The piston 25 is made of rubber material, and the bottom of the piston 25 is an inclined structure, and the top surface of the piston 25 is a flat structure. The top surface of the card plate 12 is an inclined structure, and the bottom surface of the card plate 12 is a flat structure. When the push rod 23 drives the piston 25 to be pulled out of the syringe 11, the bottom surface of the card plate 12 will clamp the top surface of the piston 25 and separate the piston 25 from the push rod 23.

[0028] In the above embodiment, it should be noted that when disassembling the syringe 11, it is necessary to pull the push rod 23 out of the syringe 11, and use the clamping plate 12 to press against the top surface of the piston 25 to separate the piston 25 from the push rod 23, so as to achieve the effect of quickly disassembling the piston 25; when installing a new piston 25, it is necessary to first install the piston 25 at the lower end of the push rod 23, and then insert the push rod 23 and the piston 25 into the syringe 11. When the piston 25 is inserted into the syringe 11, the bottom inclined surface of the piston 25 squeezes the top inclined surface of the clamping plate 12, and the piston 25 is deformed by the force and finally inserted into the syringe 1.

[0029] Example 4

[0030] like Figure 1 As shown, the easily disassembled drug syringe includes all the contents of embodiment 1. In addition, the needle 15 is a detachable structure, and the needle 15 can be pulled out from the connector 14.

[0031] In the above embodiment, it should be noted that the needle 15 with a replaceable structure can be replaced with a needle 15 of different models according to actual needs.

[0032] Example 5

[0033] like Figure 1 As shown, the easily disassembled medicine syringe includes all the contents of Example 1. In addition, both ends of the injection end plate 22 extend to both sides, and the bottom surfaces of both ends of the extended injection end plate 22 are provided with concave curved surfaces.

[0034] In the above embodiment, it should be noted that during use, the user holds the two ends of the injection end plate 22 with the index finger and the middle finger, and then presses the injection push plate 24 with the thumb to achieve the injection effect.

[0035] The usage process of the present invention is as follows: after the syringe is used, a person skilled in the art will remove the syringe barrel 11 and the needle 15 that are in contact with the medicine by threaded removal, and at the same time, the clamping plate 12 on the inner wall of the syringe barrel 11 will pull out the piston 25 at the lower end of the push rod 23, so that the contaminated piston 25 remains in the syringe 11, so as to achieve the effect of quickly removing the contaminated part of the syringe.

[0036] The above description is merely a preferred embodiment of the present invention. Anyone skilled in the art may utilize the above-described technical solutions to modify the present invention or create equivalent technical solutions. Therefore, any simple modification or equivalent replacement based on the technical solutions of the present invention falls within the scope of protection claimed by the present invention.

Claims

1. A medicament syringe that is easy to disassemble, comprising a syringe (11), a connector (14) being provided at the lower end of the syringe (11), a needle (15) being inserted and connected to the connector (14), and characterized in that: An outer sleeve (21) is sleeved and installed on the outer wall of the upper end of the injection barrel (11), an injection end plate (22) is fixedly installed on the upper end of the outer sleeve (21), a push rod (23) is slidably installed in the middle of the injection end plate (22), the push rod (23) passes through the injection end plate (22), a piston (25) is installed on the lower end of the push rod (23), the piston (25) is slidably installed on the inner wall of the injection barrel (11), a clamping plate (12) is fixedly installed on the upper end of the inner wall of the injection barrel (11), the injection barrel (11) can be disassembled from the outer sleeve (21), and the clamping plate (12) can pull out the piston (25) at the lower end of the push rod (23) during the disassembly of the injection barrel (11).

2. The easily disassembled medicine syringe according to claim 1, characterized in that: The inner wall of the outer sleeve (21) is provided with an internal thread (26), and the upper end of the outer wall of the injection barrel (11) is provided with an external thread (13). When the outer sleeve (21) is screwed onto the upper end of the outer wall of the injection barrel (11), the internal thread (26) is threadedly connected with the external thread (13).

3. The easily disassembled medicine syringe according to claim 1, characterized in that: An injection push plate (24) is fixedly mounted on the upper end of the push rod (23), and the lower end of the push rod (23) is plug-in connected to the piston (25).

4. The easily disassembled medicine syringe according to claim 1, characterized in that: The piston (25) is made of rubber, the bottom of the piston (25) is an inclined structure, and the top surface of the piston (25) is a flat structure.

5. The easily disassembled medicine syringe according to claim 4, characterized in that: The top surface of the clamping plate (12) is an inclined structure, and the bottom surface of the clamping plate (12) is a flat structure. When the push rod (23) drives the piston (25) to be pulled out of the injection cylinder (11), the bottom surface of the clamping plate (12) will clamp the top surface of the piston (25) and separate the piston (25) from the push rod (23).

6. The easily disassembled medicine syringe according to claim 1, characterized in that: The needle (15) is a detachable structure, and the needle (15) can be pulled out from the connector (14).

7. The easily disassembled medicine syringe according to claim 1, characterized in that: Both ends of the injection end plate (22) extend toward both sides, and the bottom surfaces of both ends of the extended injection end plate (22) are provided with concave curved surfaces.

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