Constant-speed injection device

Abstract

The utility model relates to a constant-speed injection device which comprises a machine shell. The needle cylinder is arranged in the machine shell; the needle head is arranged on the outer side of the machine shell and connected with the needle cylinder; the push rod is arranged in the machine shell, and one end of the push rod extends into the needle cylinder; the air cylinder is arranged in the machine shell and connected with the other end of the push rod, the air cylinder is used for controlling the push rod to move in the needle cylinder, and the liquid is extruded into the needle head from the needle cylinder through the movement of the push rod; the time control key is arranged on the machine shell and used for controlling the working time of the air cylinder; the display screen is arranged on the machine shell and used for displaying the propelling speed of the push rod and the working time of the air cylinder; the starting key is arranged on the machine shell and used for controlling starting of the air cylinder; and the controller is arranged in the shell, is electrically connected with the air cylinder, the time control key, the display screen and the start key, and is used for controlling the speed of the air cylinder. Compared with the prior art, the device can control uniform-speed injection of liquid medicine.

Description

Technical Field

[0001] The utility model relates to the technical field of medical care, in particular to a uniform speed push injection device. Background Art

[0002] Subcutaneous injection refers to the injection of liquid medicine into the subcutaneous tissue, for example, when the drug effect needs to be achieved quickly, oral administration is not possible or appropriate, local anesthesia or preoperative medication, etc. Common injection sites are the lower edge of the deltoid muscle of the upper arm, the outer side of the upper arm, the abdomen, the back and the outer side of the thigh.

[0003] The conventional subcutaneous injection method is: use the sterile syringe and needle in the injection tray, prepare the medicine according to the doctor's instructions, select the injection site, disinfect the skin with 2% iodine tincture and 70% alcohol, and perform subcutaneous injection after it dries; when injecting, suck the medicine into the syringe, expel the air, tighten the skin with your left hand, hold the syringe with your right hand, fix the needle plug with your index finger, and point the needle bevel upward at an angle of 30 to 40 degrees to the skin. Those who are too thin can pinch the injection site, quickly insert two-thirds of the needle, release your left hand to fix the needle plug, aspirate if there is no blood return, and then inject the medicine.

[0004] There are many drugs injected subcutaneously. Due to the different needle insertion angles and injection speeds, the patient's pain will increase. The main risks are as follows: 1. In order to relieve the patient's pain and improve the patient's comfort, the nurse's infusion time will be increased for drugs that need to be injected very slowly; 2. High-concentration trace drugs need to be injected at a uniform speed; 3. The risk of needle stick injury is relatively high during subcutaneous injection.

[0005] In current clinical trials, a chemotherapy drug called Dara needs to be injected subcutaneously over a period of 3-5 minutes. Clinical nurses can usually complete the injection on time, but cannot guarantee the precise injection speed. During the slow injection process, the nurse only needs to observe whether the patient has any discomfort. Utility Model Content

[0006] The purpose of the utility model is to provide a uniform speed push injection device, the buckle in the middle of the device can clamp a 5ml syringe; after turning on the power button, the push injection time is directly input according to the doctor's order, which is convenient and simple to operate; when the nurse injects the needle into the patient's body, she only needs to press the start button, and the machine can complete the push injection at a uniform speed within the specified time.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A uniform speed push injection device, comprising:

[0009] chassis;

[0010] Syringe: It is located inside the casing;

[0011] Needle: It is arranged outside the housing and is connected to the syringe;

[0012] Push rod: It is arranged inside the casing, and one end of the push rod extends into the syringe;

[0013] Cylinder: It is arranged inside the housing and connected to the other end of the push rod. The cylinder is used to control the push rod to move in the syringe, and the liquid is squeezed from the syringe into the needle through the movement of the push rod;

[0014] Time control key: It is set on the housing and is used to control the working time of the cylinder;

[0015] Display screen: It is arranged on the casing, and is used to display the pushing speed of the push rod and the working time of the cylinder;

[0016] Start button: It is set on the casing and is used to control the start of the cylinder;

[0017] Controller: It is arranged inside the casing. The controller is electrically connected to the cylinder, the time control key, the display screen and the start key. The controller is used to control the speed of the cylinder.

[0018] In one embodiment of the utility model, the uniform speed push injection device also includes a power supply, and the power supply is used to supply power to the controller, the cylinder, the time control key, the display screen and the start key.

[0019] In one embodiment of the present utility model, the uniform speed push injection device further comprises a power button, the power button is arranged on the housing, and the power button is used to control the power on.

[0020] In one embodiment of the present utility model, the uniform speed push injection device further includes a charging port, the charging port is disposed on the outside of the housing, and the charging port is connected to a power source.

[0021] In one implementation of the utility model, a voice prompt chip is provided in the power supply, and the voice prompt chip is used to prompt the remaining battery level of the power supply to avoid insufficient power during use.

[0022] In one embodiment of the present utility model, the uniform speed push injection device further comprises an alarm module, the alarm module is arranged inside the housing, the alarm module is electrically connected to the controller, and the alarm module is used for voice alarm.

[0023] When the display screen shows that the advancement speed of the push rod is reduced, the alarm module reminds the medical staff that the injection is blocked.

[0024] In one embodiment of the utility model, a placement groove is provided in the housing, and the syringe is arranged in the placement groove.

[0025] In one embodiment of the utility model, a shock-absorbing pad is provided at the junction of the placement groove and the syringe.

[0026] In one embodiment of the utility model, a buckle is provided on the placement groove, and the buckle is used to fix the syringe.

[0027] In one embodiment of the utility model, a handle is provided at the rear end of the outer side of the casing.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. The uniform speed push injection device provided by the utility model is mini in size and can be held by hand after the syringe is installed without affecting the nurse's completion of subcutaneous injection.

[0030] 2. The uniform speed push injection device provided by the utility model can control the uniform speed of the injection of the liquid medicine into the patient's body, and the liquid injection speed is determined by displaying the pushing speed of the push rod on the display screen.

[0031] 3. When the uniform speed push injection device provided by the utility model is turned on, there is an intelligent voice reminder that the machine has ** remaining power and can work continuously for * hours, avoiding the device running out of power during the push injection process.

[0032] 4. After the uniform speed push injection device provided by the utility model is turned on, the start button can be long pressed for rapid push injection, which can be used to exhaust air in the syringe.

[0033] 5. The uniform speed injection device provided by the utility model is easy to operate, has few buttons, and has clear display screen markings.

[0034] 6. The utility model replaces manual injection by setting up a cylinder, adopts a mechanical electronic drive method, and is controlled and driven by a controller to automatically push the syringe. The injection can be controlled by the controller; the specific control signal is controlled by the controller according to the speed signal generated by the controller according to the syringe injection time. The cylinder can be implemented in the form of a telescopic motor or an electric screw to achieve automatic injection of the syringe; the speed is visible and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the utility model.

[0036] Explanation of the figure numbers: 1. Power button, 2. Charging port, 3. Buckle, 4. Syringe, 5. Housing, 6. Push rod, 7. Start button, 8. Time control button, 9. Display screen, 10. Needle, 11. Placement slot. DETAILED DESCRIPTION

[0037] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting 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.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 indirectly connected 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.

[0041] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0042] Example

[0043] See also Figure 1 This embodiment provides a uniform speed injection device, comprising:

[0044] Housing 5;

[0045] Syringe 4: It is arranged inside the housing 5;

[0046] Needle 10: It is arranged outside the housing 5, and the needle 10 is connected to the syringe 4;

[0047] Push rod 6: It is arranged inside the housing 5, and one end of the push rod 6 extends into the syringe 4;

[0048] Cylinder: It is arranged inside the housing 5, and the cylinder is connected to the other end of the push rod 6. The cylinder is used to control the push rod 6 to move in the syringe 4, and the liquid is squeezed from the syringe 4 into the needle 10 through the movement of the push rod 6;

[0049] Time control key 8: It is arranged on the housing 5, and is used to control the working time of the cylinder;

[0050] Display screen 9: It is arranged on the housing 5, and is used to display the advancing speed of the push rod 6 and the working time of the cylinder;

[0051] Start button 7: it is arranged on the housing 5, and the start button 7 is used to control the start of the cylinder;

[0052] Controller: It is arranged inside the housing 5. The controller is electrically connected to the cylinder, the time control key 8, the display screen 9 and the start key 7. The controller is used to control the speed of the cylinder.

[0053] In this embodiment, the uniform speed injection device further comprises a power supply, and the power supply is used to supply power to the controller, the cylinder, the time control key 8 , the display screen 9 and the start key 7 .

[0054] In this embodiment, the uniform speed injection device further comprises a power button 1, which is disposed on the housing 5 and is used to control power on.

[0055] In this embodiment, the uniform speed push injection device further includes a charging port 2 , which is disposed on the outside of the housing 5 , and is connected to a power source.

[0056] In this embodiment, a voice prompt chip is provided in the power supply, and the voice prompt chip is used to prompt the remaining battery level of the power supply to avoid the situation of insufficient power during use.

[0057] In this embodiment, the uniform injection device further includes an alarm module, which is disposed inside the housing 5 and is electrically connected to the controller. The alarm module is used for voice alarm.

[0058] When the display screen 9 shows that the advancement speed of the push rod 6 is reduced, the alarm module reminds the medical staff that the injection is blocked.

[0059] In this embodiment, a placement slot 11 is provided in the housing 5 , and the syringe 4 is disposed in the placement slot 11 .

[0060] In this embodiment, a shock-absorbing pad is provided at the junction of the placement groove 11 and the syringe 4 .

[0061] In this embodiment, a buckle 3 is provided on the placement groove 11 , and the buckle 3 is used to fix the syringe 4 .

[0062] In this embodiment, a handle is provided at the rear end of the outer side of the housing 5 .

[0063] In addition, this embodiment also provides a control method for a uniform speed injection device, which is characterized by the following specific steps:

[0064] S1, fix the syringe 4 in the placement slot 11;

[0065] S2, long press the start button 7 to remove the air in the syringe 4;

[0066] S3, setting the working time of the cylinder through the time control key 8, the controller generates the advancing speed of the push rod 6 according to the working time of the cylinder, and sends the advancing speed of the push rod 6 to the display screen 9, which displays the current advancing speed of the push rod 6 and the set working time of the cylinder;

[0067] S4, when the pushing speed of the push rod 6 changes, it is considered that the liquid discharge in the syringe 4 is blocked, and an alarm signal is sent to the alarm module. The alarm module responds to the alarm signal and issues a voice alarm to prompt that the liquid discharge in the syringe 4 is blocked;

[0068] S5. When the pushing speed of the push rod 6 remains unchanged, the controller monitors the working time of the cylinder. When the display screen 9 shows that the working time of the cylinder has ended, it is determined that the liquid in the syringe 4 has been discharged.

[0069] In this embodiment, in step S2, the working time of the cylinder is equal to the injection time for the liquid in the syringe 4 to be completely pushed into the patient's body.

[0070] In this embodiment, in step S2, the pushing speed of the push rod 6 is equal to the speed of the cylinder;

[0071] The speed of the cylinder is equal to the volume of the medicine in the syringe 4 divided by the working time of the cylinder.

[0072] Each module or each step of the utility model described above can be implemented by a general computing application method, they can be concentrated on a single computing application method, or distributed on a network composed of multiple computing application methods, optionally, they can be implemented by a program code executable by the computing application method, so that they can be stored in a storage application method and executed by the computing application method, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. In this way, the utility model is not limited to any specific combination of hardware and software.

[0073] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A uniform injection device, characterized in that: include: Housing (5); Syringe (4): It is arranged inside the housing (5); A needle (10) is provided on the outside of the housing (5), and the needle (10) is connected to the syringe (4); Push rod (6): It is arranged inside the housing (5), and one end of the push rod (6) extends into the syringe (4); Cylinder: It is arranged inside the housing (5) and is connected to the other end of the push rod (6). The cylinder is used to control the movement of the push rod (6) in the syringe (4). The movement of the push rod (6) squeezes the liquid from the syringe (4) into the needle (10); Time control key (8): It is provided on the housing (5), and the time control key (8) is used to control the working time of the cylinder; Display screen (9): It is provided on the housing (5), and the display screen (9) is used to display the propulsion speed of the push rod (6) and the working time of the cylinder; Start button (7): It is provided on the housing (5), and the start button (7) is used to control the start of the cylinder; Controller: It is arranged inside the housing (5). The controller is electrically connected to the cylinder, the time control key (8), the display screen (9) and the start key (7). The controller is used to control the speed of the cylinder.

2. A uniform injection device according to claim 1, characterized in that: The uniform speed injection device further comprises a power supply, which is used to supply power to the controller, the cylinder, the time control key (8), the display screen (9) and the start key (7).

3. A uniform injection device according to claim 2, characterized in that: The uniform speed injection device further comprises a power button (1), which is arranged on the housing (5) and is used to control power on.

4. A uniform injection device according to claim 2, characterized in that: The uniform speed injection device further comprises a charging port (2), wherein the charging port (2) is arranged outside the housing (5), and the charging port (2) is connected to a power source.

5. The uniform injection device according to claim 3, characterized in that: A voice prompt chip is provided in the power supply, and the voice prompt chip is used to prompt the remaining battery level of the power supply.

6. The uniform injection device according to claim 1, characterized in that: The uniform speed injection device further comprises an alarm module, which is arranged inside the housing (5), is electrically connected to the controller, and is used for voice alarm.

7. The uniform injection device according to claim 1, characterized in that: A placement groove (11) is provided in the housing (5), and the syringe (4) is arranged in the placement groove (11).

8. The uniform injection device according to claim 7, characterized in that: A shock-absorbing pad is provided at the junction of the placement groove (11) and the syringe (4).

9. The uniform injection device according to claim 7, characterized in that: The placement groove (11) is provided with a buckle (3), and the buckle (3) is used to fix the syringe (4).

10. The uniform injection device according to claim 1, characterized in that: A handle is provided at the rear end of the outer side of the casing (5).

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