An injection device

Abstract

The present application relates to the technical field of medical equipment, in particular to an injection device. The syringe of the present application is arranged as a closed cylindrical structure, further, is communicated with a pressurizing device through a hose, and is provided with a wedge-shaped pad. In use, the syringe is fixed on the groove of the wedge-shaped pad to perform needle insertion. The injection angle of the syringe is adjusted by the wedge-shaped pad, and the pressurizing device is pressurized to drive the piston to perform injection. The pressurizing device can be a transfusion pump, which can adjust the flow rate in use. The nurse does not need to perform injection for a long time, and the same angle is maintained, so that the labor is saved, and the stability of needle insertion is ensured.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an injection device. Background Technology

[0002] In the subcutaneous injection of large molecule monoclonal antibody antitumor drugs, the injection volume is often large and the injection time is long. At the same time, there are certain requirements for the needle angle during subcutaneous injection.

[0003] In clinical practice, subcutaneous injection of large molecule monoclonal antibody tumor drugs is usually performed using a conventional syringe. However, depending on the dosage, the injection needs to be completed in 5-10 minutes. This means that nurses need to maintain the same needle angle and continuously inject for 5-10 minutes. During the process, the injection angle may change due to the long injection time.

[0004] In conclusion, there is an urgent need for an injection device that can maintain the stability of the injection angle during use, while freeing up nurses' hands. Summary of the Invention

[0005] The purpose of this invention is to provide an injection device that, in order to address the problems existing in the prior art, can maintain the stability of the injection angle during use, while freeing up the nurse's hands.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An injection device includes a syringe, the syringe including a needle and a syringe barrel, the syringe barrel having a piston inside, and one end of the syringe barrel away from the needle being connected to a pressurizing device via a flexible tube, the pressurizing device being used to push the piston; the syringe barrel being detachably connected to a wedge-shaped pad, the wedge-shaped pad being used to provide a needle insertion angle.

[0008] Preferably, the syringe is a sealed cylindrical structure, and the tubing connects the sealed cylindrical structure to the output end of the pressurizing device.

[0009] Preferably, the pressurizing device is an infusion pump.

[0010] Preferably, the wedge-shaped pad has a groove, and the syringe is placed in the groove.

[0011] Preferably, the syringe is engaged within the groove.

[0012] Preferably, the groove is provided with an elastic band, which secures the syringe.

[0013] Preferably, the angle of the groove on the wedge-shaped pad is 30° to 45°.

[0014] Preferably, the wedge-shaped pad is a structural component made of rubber material.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] The syringe of this application is designed as a sealed cylindrical structure. Furthermore, it is connected to a pressurizing device via a flexible tube and is equipped with a wedge-shaped pad. In use, the syringe is fixed on the groove of the wedge-shaped pad for needle insertion. The injection angle of the syringe is adjusted by the wedge-shaped pad, and the pressurizing device applies pressure to pressurize the piston and inject the syringe. The pressurizing device can be an infusion pump, and the flow rate can be adjusted during use. The entire process does not require the nurse to insert the needle for a long time and maintain the same angle, saving manpower while ensuring the stability of needle insertion. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] The markings in the diagram are: 1-syringe, 11-needle, 12-syringe, 13-piston, 2-tube, 3-pressurizing device, 4-wedge pad, 41-groove. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] Example 1

[0022] An injection device includes a syringe 1, which includes a needle 11 and a syringe barrel 12. A piston 13 is disposed within the syringe barrel 12. One end of the syringe barrel 12, away from the needle 11, is connected to a pressurizing device 3 via a flexible tube 2. The pressurizing device 3 is used to push the piston 13. The syringe barrel 12 is detachably connected to a wedge-shaped pad 4, which provides an insertion angle. The pressurizing device 3 applies pressure to the piston 13, thereby performing injection. The syringe 1 is positioned on the wedge-shaped pad 4 to adjust the insertion angle, achieving subcutaneous injection.

[0023] In use, this invention first injects the medication into the syringe 1 via a three-way valve or similar structure. Then, the syringe 1 is used for injection. After needle insertion, the pressurizing device 3 is activated, and the wedge-shaped pad 4 is placed under the syringe 1 for fixation. Pressurization is applied through the pressurizing device 3, which actuates the piston 13 for injection. The pressurizing device 3 is adjustable, thereby regulating the needle insertion speed. The wedge-shaped pad 4 provides the needle insertion angle. When the medication injection is complete and further injection is needed, the three-way valve is used to inject more medication into the syringe 1. Throughout the process, the nurse does not need to perform prolonged needle insertion and maintain the same angle, saving manpower while ensuring needle insertion stability.

[0024] Specifically, the syringe 12 is a sealed cylindrical structure, and the flexible tube 2 connects the sealed cylindrical structure to the output end of the pressurizing device 3. The syringe 12 is connected to the pressurizing device 3 through the flexible tube 2, and the syringe 12 is a sealed structure, thereby enabling the pressurizing device 3 to apply pressure through the flexible tube 2, pushing the piston 13 to move and achieve injection.

[0025] Specifically, the pressurizing device 3 is an infusion pump. The infusion pump, connected to the syringe 1 via the tubing 2, allows adjustment of the pressurization rate, thereby controlling the piston movement speed, i.e., the injection speed. The pressurizing device 3 can also be a pressurizing pump, pressurizing cylinder, or other device capable of pressurizing the syringe 12.

[0026] Specifically, the wedge-shaped pad 4 has a groove 41, and the syringe 1 is placed in the groove 41. The wedge-shaped pad 4 has a groove 41 that is adapted to the syringe 1. In use, the syringe 1 is placed in the groove 41, that is, the tilt angle of the syringe 1 is the same as the angle of the wedge-shaped pad 4.

[0027] Specifically, the syringe 1 is snapped into the groove 41. The syringe 1 can fit snugly into the groove 41. Furthermore, the groove 41 is provided with an elastic band to secure the syringe 1. In both methods, the syringe 1 and the wedge-shaped pad 4 are movably connected, facilitating syringe replacement.

[0028] Specifically, the wedge-shaped pad 4 has a groove 41 with an angle of 30° to 45°. The wedge-shaped pad 4 provides an angle of 30° to 45° for the syringe 1, that is, it provides the needle insertion angle for subcutaneous injection.

[0029] Specifically, the wedge-shaped pad 4 is a structural component made of rubber. It can also be made of sponge material for easy use. Furthermore, a strap can be provided at the bottom of the wedge-shaped pad 4 to fix the wedge-shaped pad 4 to the injection site during use.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An injection device comprising a syringe (1), the syringe (1) including a needle (11) and a syringe barrel (12), the syringe barrel (12) having a piston (13) disposed therein, characterized in that, The end of the syringe (12) away from the needle (11) is connected to the pressure device (3) via a hose (2), the pressure device (3) being used to push the piston (13); the syringe (12) is detachably connected to the wedge pad (4), the wedge pad (4) being used to provide the needle insertion angle.

2. The injection device according to claim 1, characterized in that, The syringe (12) is a closed cylindrical structure, and the tubing (2) connects the closed cylindrical structure to the output end of the pressurizing device (3).

3. The injection device according to claim 2, characterized in that, The pressurizing device (3) is an infusion pump.

4. An injection device according to claim 3, characterized in that, The wedge-shaped pad (4) has a groove (41), and the syringe (1) is placed in the groove (41).

5. An injection device according to claim 4, characterized in that, The syringe (1) is engaged in the groove (41).

6. An injection device according to claim 4, characterized in that, An elastic band is provided on the groove (41) to fix the syringe (1).

7. An injection device according to claim 4, characterized in that, The wedge-shaped pad (4) has a groove (41) with an angle of 30° to 45°.

8. An injection device according to claim 7, characterized in that, The wedge-shaped pad (4) is a structural component made of rubber material.

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