A portable needle pusher auxiliary device

Abstract

This utility model discloses a portable syringe plunger auxiliary device, comprising: a base and a power supply module. A syringe holder and an electric plunger are mounted on the base; the syringe holder is configured to engage an injection syringe; the electric plunger is positioned such that its output shaft extends toward the syringe holder, and the electric plunger pushes the piston handle of the injection syringe engaged in the syringe holder toward the needle tip of the injection syringe; the power supply module is installed within the base and electrically connected to the electric plunger through a first power supply circuit, and the power supply module supplies power to the electric plunger. This utility model helps nursing personnel achieve a stable and uniform injection operation over a long period during subcutaneous injections.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a portable needle-pushing auxiliary device. Background Technology

[0002] In routine nursing care, subcutaneous and intramuscular injections often require manual injection. In some cases, such as when the medication is oil-based, its poor fluidity makes it difficult for inexperienced nurses to consistently control the injection speed. For some chemotherapy drugs, excessively rapid injection can cause the drug to act quickly in the body, leading to a rapid increase in drug concentration and even extravasation. This not only affects the drug's efficacy but also significantly increases the risk of adverse reactions in patients. Furthermore, prolonged injection time means that nurses cannot simultaneously respond to and address the needs of other patients, impacting the overall flow of nursing care. Moreover, continuous, lengthy, and meticulous procedures can lead to nurse fatigue, consequently affecting their subsequent work performance and concentration. Therefore, developing a novel auxiliary injection device to overcome these problems in existing technologies is a direction that requires further research by those skilled in the art. Utility Model Content

[0003] The purpose of this invention is to provide a portable injection aid that can help nursing staff achieve a long-term, stable, and uniform injection operation when performing subcutaneous injections.

[0004] This utility model discloses a portable push-pin auxiliary device, which includes:

[0005] A base on which a syringe holder and an electric push rod are mounted; the syringe holder is configured to engage an injection syringe; the electric push rod is positioned such that its output shaft extends toward the syringe holder and is used to push the piston handle of the injection syringe engaged in the syringe holder toward the needle tip of the injection syringe.

[0006] A power supply module is installed in the base and electrically connected to the electric push rod through a first power supply circuit. The power supply module is used to supply power to the electric push rod.

[0007] By adopting this technical solution, when performing subcutaneous injection, the nurse first inserts the needle of the injection syringe into the patient's subcutaneous tissue, then clamps the syringe body into the syringe holder, operates the electric push rod to work, and the electric push rod advances its output shaft in a straight line at a constant speed. The output shaft abuts against the piston handle of the injection syringe and pushes the piston into the syringe, thus achieving a constant speed injection for a long time.

[0008] Preferably, it further includes: a control board, which is mounted on the base and is signal-connected to the electric push rod, and the control board has a built-in PWM controller.

[0009] By adopting this technical solution, the speed of the electric push rod motor is adjusted by using the built-in PWM controller on the control board, thereby adjusting the speed of the push needle and meeting the injection needs of various clinical situations.

[0010] Preferably, it also includes:

[0011] An alarm device is integrated with the control board; the power supply module is electrically connected to the alarm device through a second power supply circuit, and the power supply module is also used to supply power to the alarm device.

[0012] A limit switch is mounted on a base and configured to be located on the moving path of the output shaft of the electric actuator, for being triggered during the movement of the output shaft of the electric actuator; the limit switch is disposed on the second power supply circuit and is used to switch the second power supply circuit into a conducting state when triggered.

[0013] By adopting this technical solution, during the use of this device, when the output shaft of the electric push rod moves to a certain position (for example, when the piston rod is about to move to the position where the liquid in the syringe is completely injected), the limit switch is triggered. At this time, the alarm is activated to remind medical staff to perform subsequent operations. This allows medical staff to leave briefly to care for other patients during the use of this device, thereby improving the work efficiency of medical staff.

[0014] Preferably, the power supply module uses a lithium battery.

[0015] By adopting this technical solution, the device does not require a power cord for connecting to mains power, making it easy to carry and move.

[0016] Preferably, the base is provided with a USB charging port, which is electrically connected to the power supply module.

[0017] This technical solution utilizes a USB charging port to charge the power supply module and extend its battery life.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] First, this invention can help nursing staff achieve a stable and uniform injection rate during subcutaneous injections over a long period of time.

[0020] Secondly, this invention enables the adjustment of the injection speed to meet the injection needs of various clinical situations.

[0021] Thirdly, this invention allows medical staff to briefly leave to care for other patients during the use of the equipment, thus improving their work efficiency.

[0022] Finally, this invention has a simple structure, is easy to operate, and is easy to prepare and use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Example 1.

[0024] Figure 2 This is a schematic diagram of the module structure of Example 1. The USB charging port is omitted in this figure.

[0025] The component names corresponding to the various reference numerals in the diagram are as follows:

[0026] 100, Base; 200, Syringe slot; 300, Electric push rod; 400, Alarm; 500, Control board; 600, Limit switch; 700, USB charging port; 800, Power supply module; 310, Output shaft; 900, Injection syringe; 910, Needle; 920, Piston handle. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0028] Example 1, please refer to Figure 1-2 :

[0029] A portable push-pin assist device, comprising:

[0030] A base 100 is provided, on which are mounted a syringe slot 200, an electric actuator 300, an alarm 400, a limit switch 600, a USB charging port 700, and a control board 500. A power supply module 800 is installed inside the base 100. The power supply module 800 is electrically connected to the electric actuator 300 via a first power supply circuit, supplying power to the electric actuator 300. The power supply module 800 is also electrically connected to the alarm 400 via a second power supply circuit, supplying power to the alarm 400. In this example, the power supply module 800 is specifically a lithium battery. The USB charging port 700 is electrically connected to the lithium battery for charging the lithium battery.

[0031] The syringe slot 200 is configured to engage the injection syringe 900. (In this example, the syringe slot 200 is implemented using an elastic U-shaped retaining ring with a certain width and thickness, the size of which is configured to match the diameter of the conventional injection syringe 900.) The electric push rod 300 is positioned such that its output shaft 310 extends toward the elastic U-shaped retaining ring, and the electric push rod 300 is used to push the piston handle 920 of the injection syringe 900, which is engaged in the syringe slot 200, toward the needle 910 of the injection syringe 900. (That is, pushing the piston of the injection syringe 900 into the syringe to allow the liquid medicine inside the injection syringe 900 to be output from the needle 910.) The control board 500 is signal-connected to the electric push rod 300, and the control board 500 has a built-in PWM controller. The alarm 400 is integrated with the control board 500.

[0032] The limit switch 600 is configured to be located on the moving path of the output shaft 310 of the electric push rod 300, and is triggered during the movement of the output shaft 310 of the electric push rod 300 (in practice, the limit switch 600 is located near the syringe slot 200, and when it is triggered, it means that the piston part of the syringe is about to be fully inserted into the syringe); the limit switch 600 is provided on the second power supply circuit and is used to switch the second power supply circuit into the conducting state when triggered.

[0033] In practice, its working process is as follows:

[0034] During subcutaneous injection, the nurse first inserts the needle 910 of the syringe 900 into the patient's subcutaneous tissue. Then, the syringe body is secured to the syringe holder 200. The nurse operates the control panel 500 according to the actual injection needs, adjusting the advancing speed of the electric push rod 300. The electric push rod 300 is then powered on, advancing its output shaft 310 at a constant speed in a straight line. This output shaft 310 abuts against the piston handle 920 of the syringe 900, pushing the piston into the syringe and achieving a constant injection speed over a prolonged period. When the output shaft 310 of the electric push rod 300 moves to a position where the liquid in the syringe is about to be completely injected, the piston handle 920 contacts the limit switch 600, triggering the switch. At this time, the second power supply circuit is activated, and the alarm 400 is powered on and activated, reminding the medical staff to perform subsequent operations. This allows the medical staff to briefly leave to care for other patients during the use of this equipment, improving their work efficiency.

[0035] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above embodiments. Even if various changes are made to this utility model, if these changes fall within the scope of the claims of this utility model and their equivalents, they shall still fall within the protection scope of this utility model.

Claims

1. A portable push-pin auxiliary device, characterized in that, include: A base on which a syringe holder and an electric push rod are mounted; the syringe holder is configured to engage an injection syringe; the electric push rod is positioned such that its output shaft extends toward the syringe holder and is used to push the piston handle of the injection syringe engaged in the syringe holder toward the needle tip of the injection syringe. A power supply module is installed inside the base and electrically connected to the electric push rod via a first power supply circuit. The power supply module is used to supply power to the electric push rod. A control board is mounted on the base and is signal-connected to the electric push rod. The control board contains a built-in PWM controller. An alarm device is integrated with the control board; the power supply module is electrically connected to the alarm device through a second power supply circuit, and the power supply module is also used to supply power to the alarm device. A limit switch is mounted on a base and configured to be located on the moving path of the output shaft of the electric actuator, for being triggered during the movement of the output shaft of the electric actuator; the limit switch is disposed on the second power supply circuit and is used to switch the second power supply circuit into a conducting state when triggered.

2. The portable push-pin auxiliary device according to claim 1, characterized in that, The power supply module uses a lithium battery.

3. The portable push-pin auxiliary device according to claim 2, characterized in that, The base is provided with a USB charging port, which is electrically connected to the power supply module.

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