Precise medical infusion pump body

Abstract

The utility model discloses a kind of precision medical infusion pump body, including pump cylinder, liquid inlet pipeline, liquid outlet pipeline, pump lock cap and sealing piston, the liquid inlet pipeline and liquid outlet pipeline are oppositely inserted in the upper portion of the pump cylinder and are fixed by pump lock cap, the lower portion of the pump cylinder is equipped with infusion passage, the infusion passage is respectively communicated with the liquid inlet pipeline and liquid outlet pipeline by liquid inlet flow channel and liquid outlet flow channel, liquid inlet valve ball is arranged between the liquid inlet flow channel and the liquid inlet pipeline, liquid outlet valve ball is arranged between the liquid outlet flow channel and the liquid outlet pipeline, the sealing piston is movably arranged in the infusion passage. The utility model has the advantages of reasonable structure, stable conveying, accurate control of the conveying speed and the dose of liquid medicine by mechanical or electronic control device, which can ensure that the medicine is input into the patient's body at a constant speed. It has the advantages of small size, light weight, simple operation, safety and reliability, stable and reliable performance, accurate flow, etc.

Description

Technical Field

[0001] This utility model relates to the field of infusion pump technology, specifically to a precision medical infusion pump body. Background Technology

[0002] An infusion pump is a medical device used to control the rate and flow of intravenous fluid administration. Its principle is based on pressure and fluid dynamics. An infusion pump typically consists of an electric motor, infusion tubing, and a control system. The electric motor is the power source for the infusion pump, converting electrical energy into mechanical energy to drive the fluid flow. The infusion tubing is the passageway for delivering liquid medications into the patient's body. The control system monitors and regulates the pump's operation. When the infusion pump starts working, the electric motor rotates, transmitting rotational power to a piston or roller in the infusion tubing via gears or belts. The movement of the piston or roller applies pressure to the tubing, drawing fluid from the infusion bottle or bag and propelling it into the tubing. The control system monitors the pump's operating parameters, such as pressure, flow rate, and infusion volume. Based on the set infusion parameters, the control system adjusts the electric motor's speed, thereby controlling the fluid delivery rate and flow. If the pressure or flow rate exceeds the set range, the control system will issue an alarm or stop the infusion pump to ensure patient safety. In summary, an infusion pump uses an electric motor to drive a piston or roller in the infusion tubing to control the flow rate and volume of the fluid. The control system monitors and regulates the operating status of the infusion pump to ensure the accuracy and safety of the infusion.

[0003] Infusion pumps enable flexible fluid flow and are widely used in medical equipment. Their main characteristics include a compact structure, reliable sealing, simple design, and the sealing surface and spherical surface being constantly in a closed state, leading to their widespread application in the medical industry. However, existing infusion pumps present various challenges in delivering liquid media into equipment, including issues with media proportioning and continuous metering. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a precision medical infusion pump body. This infusion pump body has a reasonable structure and stable delivery. Through mechanical or electronic control devices, it can accurately control the delivery speed and dosage of liquid drugs, ensuring that the drugs are delivered into the patient's body at a constant speed.

[0005] The technical solution of this utility model is as follows:

[0006] A precision medical infusion pump body includes a pump cylinder, an inlet pipe, an outlet pipe, a pump lock cap, and a sealing piston. The inlet pipe and the outlet pipe are inserted opposite each other into the upper part of the pump cylinder and fixed by the pump lock cap. The lower part of the pump cylinder is provided with an infusion channel, which is connected to the inlet pipe and the outlet pipe through an inlet flow channel and an outlet flow channel, respectively. An inlet valve ball is provided between the inlet flow channel and the inlet pipe, and an outlet valve ball is provided between the outlet flow channel and the outlet pipe. The sealing piston is movably disposed in the infusion channel.

[0007] Furthermore, a filter screen is also provided between the liquid outlet valve ball and the liquid outlet pipe.

[0008] Furthermore, the inlet and outlet pipes are provided with positioning rings that abut against the top of the pump cylinder body.

[0009] Furthermore, the side walls of the inlet and outlet pipes are provided with positioning grooves, and the pump cylinder body and pump lock cap are provided with positioning holes corresponding to the positioning grooves. The positioning holes of the pump cylinder body and pump lock cap are fixed to the positioning grooves of the inlet and outlet pipes by passing through positioning rods.

[0010] Compared with the prior art, the advantages of this utility model are: small size, light weight, simple and convenient operation, safety and reliability, stable and reliable performance, and accurate flow. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A three-dimensional structural diagram of a precision medical infusion pump body provided by this utility model;

[0013] Figure 2 This is a structural cross-sectional view of a precision medical infusion pump body provided by this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 of the present utility model and are not intended to limit the present utility model.

[0015] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0016] Example

[0017] Please see Figure 1 , Figure 2 This embodiment provides a precision medical infusion pump body, including a pump cylinder 1, an inlet pipe 2, an outlet pipe 3, a pump lock cap 4, and a sealing piston 5. The inlet pipe 2 and the outlet pipe 3 are inserted opposite each other into the upper part of the pump cylinder 1 and fixed by the pump lock cap 4. The inlet pipe 2 and the outlet pipe 3 are provided with positioning rings 6 that abut against the top of the pump cylinder 1. Positioning grooves 7 are provided on the side walls of the inlet pipe 2 and the outlet pipe 3. Positioning holes corresponding to the positioning grooves 7 are opened on the pump cylinder 1 and the pump lock cap 4. Positioning holes of the pump cylinder 1 and the pump lock cap 4 are aligned with the positioning grooves 7 by passing a positioning rod 8 through them. The tank 7 is fixed; the lower part of the pump cylinder body 1 is provided with a liquid delivery channel 9, which is connected to the liquid inlet pipe 2 and the liquid outlet pipe 3 through the liquid inlet flow channel 10 and the liquid outlet flow channel 11 respectively. A liquid inlet valve ball 12 is provided between the liquid inlet flow channel 10 and the liquid inlet pipe 2, and a liquid outlet valve ball 13 is provided between the liquid outlet flow channel 11 and the liquid outlet pipe 3. A filter screen 14 is provided between the liquid outlet valve ball 13 and the liquid outlet pipe 3. The sealing piston 5 is movably disposed in the liquid delivery channel 9.

[0018] Its working principle is as follows:

[0019] The sealing piston 5 is driven by a mechanical or electronic control device to apply pressure to the infusion channel 9, causing the liquid to be drawn from the infusion bottle or bag and pushed into the infusion pipe 2. The infusion valve ball 12 is opened, and the flow is controlled by the stroke of the sealing piston 5 to form a backflow. When the sealing piston 5 is pushed back, the infusion is closed and the outfusion valve ball 13 is opened. The liquid is filtered through the filter screen 14 and delivered to the required location. The pressure and flow rate of the liquid are controlled by controlling the stroke of the sealing piston 5.

[0020] The control system monitors and adjusts the operating status of the infusion pump to ensure the accuracy and safety of the infusion, and keeps the liquid flow on both sides in a balanced state at all times.

[0021] In summary, this precision medical infusion pump has a reasonable structure and stable delivery. Through mechanical or electronic control devices, it can accurately control the delivery speed and dosage of liquid drugs, ensuring that the drugs are delivered into the patient's body at a constant rate. This precision medical infusion pump has the advantages of small size, light weight, simple and convenient operation, safety and reliability, stable and reliable performance, and accurate flow rate.

[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision medical infusion pump body, characterized in that: The pump includes a pump cylinder body, an inlet pipe, an outlet pipe, a pump lock cap, and a sealing piston. The inlet pipe and the outlet pipe are inserted opposite each other into the upper part of the pump cylinder body and fixed by the pump lock cap. The lower part of the pump cylinder body is provided with a delivery channel. The delivery channel is connected to the inlet pipe and the outlet pipe through an inlet flow channel and an outlet flow channel, respectively. An inlet valve ball is provided between the inlet flow channel and the inlet pipe, and an outlet valve ball is provided between the outlet flow channel and the outlet pipe. The sealing piston is movably disposed in the delivery channel.

2. The precision medical infusion pump body according to claim 1, characterized in that: A filter screen is also provided between the liquid outlet valve ball and the liquid outlet pipe.

3. The precision medical infusion pump body according to claim 1, characterized in that: The inlet and outlet pipes are equipped with positioning rings that abut against the top of the pump cylinder.

4. The precision medical infusion pump body according to claim 3, characterized in that: The side walls of the inlet and outlet pipes are provided with positioning grooves, and the pump cylinder body and pump lock cap are provided with positioning holes corresponding to the positioning grooves. The positioning holes of the pump cylinder body and pump lock cap are fixed to the positioning grooves of the inlet and outlet pipes by passing through positioning rods.

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