Disposable medical syringe

Abstract

The utility model discloses a disposable medical injector which comprises an injection shell. An injection mechanism is movably mounted in the injection shell, a storage mechanism is fixedly mounted in one end of the injection mechanism, and an auxiliary mechanism is rotatably mounted in the position, close to the injection mechanism, of the injection shell; the storage mechanism is fixedly mounted in one end of the injection mechanism, so that when a medical worker finishes use, the injection needle can be stored in the storage groove by clamping the injection needle in the storage groove and then clamping the bump on one side of the cover plate in the fixing groove; when the person pushes the injection mechanism to inject the liquid medicine, a gear groove in the injection mechanism is in gear transmission with a gear disc, then the injection mechanism slowly moves to inject the liquid medicine, and therefore the situation that the patient feels uncomfortable due to the fact that the injection speed of the liquid medicine is too high is avoided; and the use of personnel is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of syringes, in particular to a disposable medical syringe. Background Art

[0002] Disposable medical syringes are made of high molecular weight polypropylene material and are divided into three-piece and two-piece types. The three-piece structure consists of a core rod, a rubber stopper, a jacket, an injection needle, and an outer packaging. The two-piece structure consists of a core rod, a jacket, an injection needle, and an outer packaging. Disposable medical syringes are widely used in the field of medical technology, and the annual usage is very large. The syringe is used to inject the drug directly into the human body to prevent cross-contamination of drugs and cross-infection of bacteria and viruses caused by repeated use of syringes.

[0003] Before using a disposable medical syringe, medical staff need to first fix the needle on one end of the syringe. After use, due to the small usage in general small medical clinics, the needle and syringe are not separated and processed separately, and the disposable medical syringe is directly discarded. At this time, it is easy to cause puncture infection during later handling. At the same time, when medical staff use disposable medical syringes to inject liquid medicine into patients, if the liquid medicine is injected too quickly, it will increase the patient's discomfort, which is not conducive to the use of personnel. Utility Model Content

[0004] The purpose of the utility model is to provide a disposable medical syringe to solve the problem raised in the above-mentioned background technology that after use, due to the small usage in general small medical clinics, the needle and the syringe are not separated and processed separately, and the disposable medical syringe is directly discarded, which is easy to cause puncture infection when personnel handle it later. At the same time, when medical staff use the disposable medical syringe to inject liquid medicine to patients, if the liquid medicine is injected too quickly, it will increase the discomfort of the patient, which is not conducive to the use of personnel.

[0005] The utility model provides the following technical solution: a disposable medical syringe, comprising an injection shell; an injection mechanism is movably installed inside the injection shell, a storage mechanism is fixedly installed inside one end of the injection mechanism, and an auxiliary mechanism is rotatably installed inside the injection shell close to the injection mechanism;

[0006] The storage mechanism comprises a storage slot, a cover plate and a protrusion. The storage slot is fixedly installed inside one end of the injection mechanism, the cover plate is fixedly installed on one end of the injection mechanism close to the storage slot, and the protrusion is fixedly installed on one side of the cover plate close to the storage slot;

[0007] The auxiliary mechanism comprises a gear plate and a gear groove. The gear plate is rotatably mounted inside the injection shell close to the injection mechanism, and a gear groove is provided inside the injection mechanism close to one side of the gear plate.

[0008] Preferably, a connector is fixedly mounted on one end of the injection shell, and a scale is provided on the outer surface of the injection shell.

[0009] Preferably, a through opening is provided inside the injection shell close to the connector, and an injection needle is mounted on the outer side of the connector.

[0010] Preferably, the injection needle comprises a connecting seat and a needle, the connecting seat is snap-fitted onto the outer side of the connecting head, and the needle is fixedly mounted onto one end of the connecting seat away from the injection shell.

[0011] Preferably, the injection mechanism comprises an injection push rod and a connecting plate, the injection push rod is movably mounted inside the injection housing, and the connecting plate is fixedly mounted on one end of the injection push rod.

[0012] Preferably, a push plate is fixedly mounted on one end of the injection push rod away from the connecting plate, and a rubber ring is fixedly mounted on the outer side of the push plate.

[0013] Preferably, a fixing groove is provided inside the injection mechanism near one end of the storage mechanism, and a protrusion is snap-connected inside the fixing groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model has a storage mechanism fixedly installed inside one end of the injection mechanism. When the medical staff has finished using it, the injection needle can be stored in the storage groove by clamping it in the storage groove and then clamping the protrusion on one side of the cover plate in the fixed groove, thereby avoiding the staff from directly discarding it and causing puncture injuries and infections in later treatment. When the staff pulls the injection mechanism, the gear groove inside the injection mechanism will move synchronously. At this time, the gear plate rotates under the action of the gear groove. Through the gear transmission of the gear plate and the gear groove, the injection mechanism can be moved slowly, thereby reducing the entry of external air into the interior of the injection shell. When the staff pushes the injection mechanism to inject the medicine, the gear groove inside the injection mechanism will perform gear transmission with the gear plate, and then the injection mechanism will move slowly to inject the medicine, thereby avoiding the medicine injection speed being too fast to increase the patient's discomfort, which is beneficial to the use of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the front part of the utility model;

[0018] Figure 3 For this utility model Figure 2 A is a schematic diagram of the partially enlarged structure of the middle part;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the partially enlarged structure of B.

[0020] In the figure: 1. injection shell; 101. connector; 102. scale; 103. port; 2. injection needle; 201. connector; 202. needle; 3. injection mechanism; 301. injection push rod; 302. connecting plate; 4. storage mechanism; 401. storage slot; 402. cover plate; 403. bump; 5. fixing slot; 6. auxiliary mechanism; 601. gear plate; 602. gear slot; 7. push plate; 701. rubber ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments of the specification;

[0025] Embodiment 1:

[0026] The present application provides a disposable medical syringe, comprising an injection shell 1; an injection mechanism 3 is movably installed inside the injection shell 1, a storage mechanism 4 is fixedly installed inside one end of the injection mechanism 3, and an auxiliary mechanism 6 is rotatably installed inside the injection shell 1 near the injection mechanism 3;

[0027] The storage mechanism 4 includes a storage slot 401, a cover plate 402 and a protrusion 403. The storage slot 401 is fixedly installed inside one end of the injection mechanism 3. The cover plate 402 is fixedly installed on one end of the injection mechanism 3 close to the storage slot 401. The protrusion 403 is fixedly installed on one side of the cover plate 402 close to the storage slot 401. A fixed slot 5 is provided inside the injection mechanism 3 close to one end of the storage mechanism 4. The protrusion 403 is connected to the inside of the fixed slot 5.

[0028] The auxiliary mechanism 6 includes a gear plate 601 and a gear slot 602. The gear plate 601 is rotatably mounted inside the injection housing 1 close to the injection mechanism 3. The injection mechanism 3 is provided with a gear slot 602 inside a side close to the gear plate 601. The gear plate 601 and the gear slot 602 are gear-driven.

[0029] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, before use, the medical staff will snap-fit ​​the injection needle 2 to one end of the injection shell 1, and then the staff can suck the medicine into the injection shell 1 by operating the injection mechanism 3. When the staff pushes the injection mechanism 3 again, the medicine inside the injection shell 1 can be injected. When the medical staff has finished using it, the injection needle 2 can be snapped into the storage groove 401, and then the protrusion 403 on one side of the cover plate 402 can be snapped into the fixing groove 5, so that the injection needle 2 can be stored in the storage groove 401 to prevent the injection needle 2 from falling from the storage groove 401, thereby preventing the staff from directly discarding it and causing puncture injuries and infections in the later treatment. When the injection mechanism 3 is pulled, the gear groove 602 inside the injection mechanism 3 will move synchronously. At this time, the gear plate 601 rotates under the action of the gear groove 602. Through the gear transmission of the gear plate 601 and the gear groove 602, the injection mechanism 3 can be moved slowly, thereby reducing the entry of external air into the injection shell 1. When a person pushes the injection mechanism 3 to inject the medicine, the gear groove 602 inside the injection mechanism 3 will be gear-transmitted with the gear plate 601, and then the injection mechanism 3 will be moved slowly to inject the medicine, thereby avoiding the medicine injection speed being too fast to increase the patient's discomfort, which is beneficial to the use of personnel.

[0030] Further, a connector 101 is fixedly installed at one end of the injection housing 1, a scale 102 is provided on the outer surface of the injection housing 1, a through opening 103 is provided inside the injection housing 1 close to the connector 101, an injection needle 2 is clamped and installed on the outer side of the connector 101, and the injection needle 2 includes a connecting seat 201 and a needle 202, a connecting seat 201 is clamped and installed on the outer side of the connector 101, and a needle 202 is fixedly installed on the end of the connecting seat 201 away from the injection housing 1;

[0031] Specifically, Figure 1 and Figure 2 As shown, the medical staff clamps the connecting seat 201 on the outside of the connecting head 101, and can fix the needle 202 on one end of the injection shell 1. When the staff pushes the injection mechanism 3, the medicine will be injected from the inside of the needle 202 through the opening 103, and the scale 102 can facilitate the medical staff to view the amount of medicine.

[0032] Further, the injection mechanism 3 includes an injection push rod 301 and a connecting plate 302. The injection push rod 301 is movably installed inside the injection housing 1, and the connecting plate 302 is fixedly installed at one end of the injection push rod 301. A push plate 7 is fixedly installed at one end of the injection push rod 301 away from the connecting plate 302, and a rubber ring 701 is fixedly installed on the outer side of the push plate 7.

[0033] Specifically, Figure 1 and Figure 2 As shown, when a person presses the connecting plate 302, the connecting plate 302 will drive the push plate 7 to move through the injection push rod 301. A rubber ring 701 is fixedly installed on the outer side of the push plate 7. The rubber ring 701 can ensure good sealing between the push plate 7 and the injection shell 1, and then the push plate 7 can inject the liquid medicine inside the injection shell 1.

[0034] Working principle: Medical staff clamp the connecting seat 201 on the outside of the connecting head 101, and can fix the needle 202 on one end of the injection shell 1, and then pull the injection push rod 301 to transport the external medicine into the interior of the injection shell 1. When the personnel pushes the connecting plate 302 again, the connecting plate 302 will drive the push plate 7 to move through the injection push rod 301, and then the push plate 7 can inject the medicine inside the injection shell 1 through the needle 202.

[0035] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A disposable medical syringe, comprising an injection housing (1); characterized in that: An injection mechanism (3) is movably mounted inside the injection housing (1), a storage mechanism (4) is fixedly mounted inside one end of the injection mechanism (3), and an auxiliary mechanism (6) is rotatably mounted inside the injection housing (1) close to the injection mechanism (3); The storage mechanism (4) comprises a storage groove (401), a cover plate (402) and a convex block (403); the storage groove (401) is fixedly installed inside one end of the injection mechanism (3); the cover plate (402) is fixedly installed on one end of the injection mechanism (3) close to the storage groove (401); and the convex block (403) is fixedly installed on one side of the cover plate (402) close to the storage groove (401); The auxiliary mechanism (6) comprises a gear plate (601) and a gear groove (602); the gear plate (601) is rotatably mounted inside the injection housing (1) close to the injection mechanism (3); and the gear groove (602) is provided inside one side of the injection mechanism (3) close to the gear plate (601).

2. A disposable medical syringe according to claim 1, characterized in that: A connector (101) is fixedly mounted on one end of the injection housing (1), and a scale (102) is provided on the outer surface of the injection housing (1).

3. A disposable medical syringe according to claim 2, characterized in that: The injection housing (1) is provided with a through opening (103) inside near the connector (101), and an injection needle (2) is mounted on the outside of the connector (101).

4. A disposable medical syringe according to claim 3, characterized in that: The injection needle (2) comprises a connecting seat (201) and a needle (202); the connecting seat (201) is snap-fitted onto the outer side of the connecting head (101); and the needle (202) is fixedly mounted onto one end of the connecting seat (201) away from the injection housing (1).

5. A disposable medical syringe according to claim 1, characterized in that: The injection mechanism (3) comprises an injection push rod (301) and a connecting plate (302); the injection push rod (301) is movably mounted inside the injection housing (1), and the connecting plate (302) is fixedly mounted on one end of the injection push rod (301).

6. A disposable medical syringe according to claim 5, characterized in that: A push plate (7) is fixedly mounted on one end of the injection push rod (301) away from the connecting plate (302), and a rubber ring (701) is fixedly mounted on the outer side of the push plate (7).

7. A disposable medical syringe according to claim 1, characterized in that: A fixing groove (5) is provided inside the injection mechanism (3) at one end close to the storage mechanism (4), and a protrusion (403) is snap-connected inside the fixing groove (5).

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