Low-molecular heparin calcium injector

Abstract

The utility model provides a low-molecular heparin calcium injector, which relates to the technical field of anticoagulant injection, and comprises an injector, an injection needle, a connecting rod, a connecting rod, a connecting rod and a connecting rod, and is characterized in that the injector is used for bearing medicament and outputting liquid medicine; the auxiliary part comprises a descending rod and an ascending rod; a linkage structure is arranged between the descending rod and the ascending rod, the descending rod and the ascending rod move reversely through the linkage structure, after the bottom end of the ascending rod points to the corresponding scale of the injector, the top end of the descending rod also descends by the corresponding height, and therefore when the push rod is pushed to descend, the push rod can be blocked by the descending rod, and the displacement distance of the push rod is limited. The problems that low-molecular-weight heparin calcium injection is subcutaneous injection, operation is troublesome, meanwhile, due to the influences of the environment, a light source and the like, metering scales on the surface of an injector can not be seen clearly, and the injection dosage of medical staff is not accurate easily are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of anticoagulant injection, in particular to a low molecular heparin calcium syringe. Background Art

[0002] Low molecular weight heparin calcium injection is used in surgical procedures in cases of moderate or high risk of venous thrombosis to prevent venous thromboembolic disease and to treat established deep vein thrombosis. It is also used to prevent blood clot formation in extracorporeal circulation during hemodialysis.

[0003] However, as far as the current traditional low-molecular-weight heparin calcium syringes are concerned, the dosage for each patient is different clinically, and the injection dosage is mostly manually controlled by medical staff. However, since low-molecular-weight heparin calcium injection is a subcutaneous injection, the operation is more complicated. At the same time, due to the influence of the environment, light source, etc., the measuring scale on the surface of the syringe is easy to be unclear, and medical staff are also prone to inaccurate injection dosage problems. Utility Model Content

[0004] The utility model provides a low molecular weight heparin calcium syringe, which specifically comprises:

[0005] A syringe is used to carry medicine and output liquid medicine, and includes a push rod;

[0006] The auxiliary part includes a descending rod and a rising rod; a linkage structure is arranged between the descending rod and the rising rod, through which the descending rod and the rising rod move in opposite directions. After the bottom end of the rising rod points to the corresponding scale of the syringe, the top end of the descending rod also descends to a corresponding height, and then when the push rod is pushed down, it can be blocked by the descending rod, so that the displacement distance of the push rod is limited.

[0007] Optionally, the syringe further comprises a main body and a sealing gasket; a protruding connection port is provided at the lower end of the main body, and a measuring scale is provided on the surface of the main body.

[0008] Optionally, the push rod is inserted into the interior of the main body, and a sealing gasket is provided at the lower end of the push rod; the sealing gasket is made of rubber.

[0009] Optionally, an injection needle is connected to the lower end of the syringe; the injection needle includes a needle head and a protective sleeve; the needle head is fixedly connected to the outside of the connecting port of the main body; and the outside of the needle head is covered with a protective sleeve.

[0010] Optionally, the auxiliary part also includes a fixing part, a rotating part and a positioning part; at least two clamping rings are provided at one end of the fixing part, and a mounting cavity is opened inside the fixing part; the fixing part is buckled to the outside of the syringe through the clamping ring.

[0011] Optionally, the linkage structure is a rotating member; the rotating member is a gear, and the rotating member is rotatably connected to the inside of the mounting cavity of the fixed member via a rotating shaft; there is rotational damping between the connection between the rotating member and the fixed member; and a handle is provided at the front end of the rotating member.

[0012] Optionally, the descending rod and the ascending rod are inserted into the installation cavity of the fixing member, and the descending rod and the ascending rod are respectively located on both sides of the rotating member; and a rack is respectively provided at one end of the descending rod and the ascending rod.

[0013] Optionally, the racks of the descending rod and the ascending rod face the rotating member and are respectively engaged with the rotating member.

[0014] Optionally, a limiting ring is provided at the upper end of the descending rod.

[0015] Optionally, a positioning piece is provided at the lower end of the rising rod; the positioning piece is a half ring structure and is sleeved on the outside of the syringe.

[0016] Beneficial Effects

[0017] In the utility model, when the environment, light source and other conditions are not convenient for direct injection, the auxiliary part is installed on the syringe, and the ascending rod drives the positioning part to move upward by rotating the rotating part, and stops when the positioning part is aligned with the required scale. In this process, the descending rod will also move downward synchronously, and the limiting ring will move the same distance as the positioning part. Then, when the push rod is pushed for push injection, after the prescribed dose is injected, it will be blocked by the limiting ring and cannot be pushed further, thus completing the quantitative injection;

[0018] With the above structure, medical staff do not need to pay attention to the scale on the syringe all the time when injecting, which is more convenient and quick, and the injection dosage is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0020] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 The figure shows a schematic diagram of the overall three-dimensional structure of a low molecular weight heparin calcium syringe according to an embodiment of the utility model.

[0023] Figure 2 A schematic diagram of the three-dimensional structure of the main body of the low molecular weight heparin calcium syringe according to an embodiment of the utility model is shown.

[0024] Figure 3The figure shows an assembly diagram of the auxiliary part of the low molecular weight heparin calcium syringe according to the embodiment of the present utility model.

[0025] Figure 4 A three-dimensional cross-sectional schematic diagram of the auxiliary part of the low molecular weight heparin calcium syringe according to an embodiment of the utility model is shown.

[0026] Figure 5 The invention shows a low molecular weight heparin calcium syringe according to an embodiment of the present invention. Figure 4 A local enlarged schematic diagram of point A is shown.

[0027] List of main reference symbols

[0028] 1. syringe; 101. main body; 102. push rod; 103. sealing gasket;

[0029] 2. injection needle; 201. needle; 202. protective cover;

[0030] 3. Auxiliary part; 301. Fixed part; 302. Rotating part; 303. Descending rod; 304. Ascending rod; 305. Positioning part. DETAILED DESCRIPTION

[0031] In order to make the purpose, scheme and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the utility model.

[0032] Example: Please refer to Figures 1 to 5 :

[0033] like Figure 1 As shown, the utility model proposes a low molecular weight heparin calcium syringe, comprising:

[0034] The syringe 1 is used to carry medicine and output liquid medicine, and includes a push rod 102;

[0035] The auxiliary part 3 includes a descending rod 303 and a rising rod 304; a linkage structure is set between the descending rod 303 and the rising rod 304, through which the descending rod 303 and the rising rod 304 move in opposite directions. After the bottom end of the rising rod 304 points to the corresponding scale of the syringe 1, the top end of the descending rod 303 also drops to a corresponding height, and then when the push rod 102 is pushed down, it can be blocked by the descending rod 303, so that the displacement distance of the push rod 102 is limited.

[0036] Among them, Figure 2As shown, the syringe 1 also includes a main body 101 and a sealing gasket 103; a protruding connection port is provided at the lower end of the main body 101, and a metering scale is provided on the surface of the main body 101; the medicine is carried by the main body 101, and at the same time, the metering scale is used for medical staff to observe the injection dose, and when the auxiliary part 3 is used, it can also help the medical staff to set the injection dose.

[0037] Among them, Figure 2 As shown, the push rod 102 is inserted into the interior of the main body 101, and a sealing gasket 103 is provided at the lower end of the push rod 102; the sealing gasket 103 is made of rubber; the push rod 102 and the sealing gasket 103 stabilize the internal pressure of the main body 101, and when the push rod 102 is pushed, the medicine is output.

[0038] Among them, Figure 2 As shown, the lower end of the syringe 1 is connected to an injection needle 2; the injection needle 2 includes a needle head 201 and a protective cover 202; the needle head 201 is fixedly connected to the outside of the connection port of the main body 101; the protective cover 202 is sleeved on the outside of the needle head 201; the injection needle 2 can be a common needle or a painless needle.

[0039] Among them, Figure 3 As shown, the auxiliary part 3 also includes a fixing part 301, a rotating part 302 and a positioning part 305; at least two clamping rings are provided at one end of the fixing part 301, and a mounting cavity is opened inside the fixing part 301; the fixing part 301 is buckled on the outside of the syringe 1 through the clamping ring; the other parts of the auxiliary part 3 are installed through the fixing part 301, and the auxiliary part 3 is connected to the syringe 1 through the clamping ring.

[0040] Among them, Figure 4 and Figure 5 As shown, the linkage structure is a rotating member 302; the rotating member 302 is a gear, and the rotating member 302 is rotatably connected to the inside of the installation cavity of the fixed member 301 through a rotating shaft; there is rotational damping between the connection between the rotating member 302 and the fixed member 301; a handle is provided at the front end of the rotating member 302; by rotating the rotating member 302, the descending rod 303 and the ascending rod 304 are driven to move in opposite directions.

[0041] Among them, Figure 4 and Figure 5 As shown, the descending rod 303 and the ascending rod 304 are inserted into the installation cavity of the fixing member 301, and the descending rod 303 and the ascending rod 304 are respectively located on both sides of the rotating member 302; one end of the descending rod 303 and the ascending rod 304 are respectively provided with a rack.

[0042] Among them, Figure 4 and Figure 5As shown, the racks of the descending rod 303 and the ascending rod 304 face the rotating member 302 and mesh with the rotating member 302 respectively; when the environment, light source and other conditions are not convenient for direct injection, the auxiliary part 3 is installed on the syringe 1, and the ascending rod 304 drives the positioning member 305 to move up by rotating the rotating member 302, and stops when the positioning member 305 is aligned with the required scale. During this process, the descending rod 303 will also move down synchronously, and the limiting ring will move the same distance as the positioning member 305, and then when the push rod 102 is pushed for push injection, after the prescribed dose is injected, it will be blocked by the limiting ring and cannot be pushed further, thus completing the quantitative injection.

[0043] Among them, Figure 4 and Figure 5 As shown, a limiting ring is provided at the upper end of the descending rod 303 .

[0044] Among them, Figure 4 and Figure 5 As shown, a positioning member 305 is provided at the lower end of the rising rod 304 ; the positioning member 305 is a half ring structure and is sleeved on the outside of the syringe 1 .

[0045] Specific usage and function of this embodiment: In the utility model, when the environment, light source and other conditions are not convenient for direct injection, the auxiliary part 3 is installed on the syringe 1, and the rising rod 304 drives the positioning part 305 to move up by rotating the rotating part 302, and stops when the positioning part 305 is aligned with the required scale. In this process, the descending rod 303 will also move down synchronously, and the limit ring will move the same distance as the positioning part 305, and then when the push rod 102 is pushed for push injection, after the prescribed dose is injected, it will be blocked by the limit ring and cannot be pushed further, thus completing the quantitative injection.

[0046] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A low molecular weight heparin calcium syringe, characterized in that: include: A syringe (1) is used for carrying medicine and delivering liquid medicine, and comprises a push rod (102); The auxiliary part (3) comprises a descending rod (303) and an ascending rod (304); a linkage structure is arranged between the descending rod (303) and the ascending rod (304), and the descending rod (303) and the ascending rod (304) move in opposite directions through the linkage structure. After the bottom end of the ascending rod (304) points to the corresponding scale of the syringe (1), the top end of the descending rod (303) also descends to a corresponding height, and then when the push rod (102) is pushed down, it can be blocked by the descending rod (303), so that the displacement distance of the push rod (102) is limited.

2. A low molecular weight heparin calcium syringe according to claim 1, characterized in that: The syringe (1) further comprises a main body (101) and a sealing gasket (103); a protruding connection port is provided at the lower end of the main body (101), and a measuring scale is provided on the surface of the main body (101).

3. A low molecular weight heparin calcium syringe according to claim 2, characterized in that: The push rod (102) is inserted into the interior of the main body (101), and a sealing gasket (103) is provided at the lower end of the push rod (102); the sealing gasket (103) is made of rubber material.

4. A low molecular weight heparin calcium syringe according to claim 2, characterized in that: The lower end of the syringe (1) is connected to an injection needle (2); the injection needle (2) comprises a needle head (201) and a protective sleeve (202); the needle head (201) is fixedly connected to the outside of a connection port of a main body (101); and the protective sleeve (202) is sleeved on the outside of the needle head (201).

5. A low molecular weight heparin calcium syringe according to claim 1, characterized in that: The auxiliary part (3) further comprises a fixing part (301), a rotating part (302) and a positioning part (305); at least two clamping rings are provided at one end of the fixing part (301), and a mounting cavity is provided inside the fixing part (301); the fixing part (301) is buckled on the outside of the syringe (1) via the clamping ring.

6. A low molecular weight heparin calcium syringe according to claim 2, characterized in that: The linkage structure is a rotating member (302); the rotating member (302) is a gear, and the rotating member (302) is rotatably connected to the inside of the installation cavity of the fixed member (301) via a rotating shaft; there is rotation damping between the connection between the rotating member (302) and the fixed member (301); and a handle is provided at the front end of the rotating member (302).

7. A low molecular weight heparin calcium syringe according to claim 6, characterized in that: The descending rod (303) and the ascending rod (304) are inserted into the installation cavity of the fixing member (301), and the descending rod (303) and the ascending rod (304) are respectively located on both sides of the rotating member (302); and a rack is respectively provided at one end of the descending rod (303) and the ascending rod (304).

8. A low molecular weight heparin calcium syringe according to claim 7, characterized in that: The racks of the descending rod (303) and the ascending rod (304) face the rotating member (302) and are respectively meshed with the rotating member (302).

9. A low molecular weight heparin calcium syringe according to claim 1, characterized in that: A limiting ring is provided at the upper end of the descending rod (303).

10. The low molecular weight heparin calcium syringe according to claim 1, characterized in that: A positioning piece (305) is provided at the lower end of the lifting rod (304); the positioning piece (305) is a half-ring structure and is sleeved on the outside of the syringe (1).

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