Infusion pump and pump body bracket thereof

An infusion pump and pump body technology, applied in the field of medical devices, can solve the problems that metal debris affects the normal operation of the pump body, cannot guarantee high precision, size, structural error, etc., and achieves the elimination of the assembly process, easy size, and stable size. Effect

Active Publication Date: 2010-08-25
SHENZHEN MINDRAY SCIENTIFIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only the number of spare parts of the infusion pump is large, the high precision of assembly cannot be guaranteed, but also the base material of the metal material such as aluminum needs to be machined, the production cost is high, and the consistency of the product is poor. Errors in size and structure, large friction coefficient during use, and metal debris generated by friction will affect the normal operation of the pump body

Method used

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  • Infusion pump and pump body bracket thereof
  • Infusion pump and pump body bracket thereof
  • Infusion pump and pump body bracket thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0016] A pump body bracket of an infusion pump, such as figure 1 As shown, the pump body support is an integrated structure, including a peristaltic pump installation part 1, a motor installation part 2, and an infusion tube installation groove 3 is opened on it for passing an infusion hose.

[0017] The peristaltic pump installation part 1 is provided with a pump body installation chamber 4 and a pressure plate installation chamber 5 . The infusion tube installation groove 3 is located between the pump body installation chamber 4 and the pressure plate installation chamber 5 . A pump body bearing hole 6 and a vane slot 7 are opened on the side plate of the pump body installation chamber 4 . There are also other threaded holes for connecting and fixing the pump body and the pressure plate.

[0018] The motor mounting part 2 is a motor mounting plate, and the motor mounting plate is provided with a motor bearing hole 8 for passing through the motor shaft. The motor bearing ho...

specific Embodiment approach 2

[0023] A pump body bracket of an infusion pump, the integrated structure of which is the same as that of Embodiment 1, the difference is that: the pump body bracket is made of ABS material and integrally formed by injection molding process, the product has good consistency, and the shrinkage rate is 0.5% , the coefficient of friction is 0.28.

specific Embodiment approach 3

[0024] A pump body bracket of an infusion pump, its integrated structure is the same as that of the specific embodiment 1, the difference is that: the pump body bracket uses POM (Polyacetal, polyoxymethylene) material as the base material and is integrally formed by injection molding process, but the product The consistency is poor, the size is unstable, the shrinkage rate is 1.7%, and the friction coefficient is 0.13.

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Abstract

The invention discloses an infusion pump and a pump body bracket thereof. The infusion pump comprises the pump body bracket, and a motor and a peristaltic pump which are arranged on the pump body bracket, wherein the pump body bracket has an integral structure and comprises a motor mounting part, a peristaltic pump mounting part, and an infusion tube mounting groove through which an infusion tubepasses through; the peristaltic pump mounting part comprises a pump body mounting chamber and a pressure plate mounting chamber; the infusion tube mounting groove is positioned between the pump body mounting chamber and the pressure plate mounting chamber; and the pump body bracket adopts a synthetic plastic, consisting of PPE, PS and 30 percent of GF, as a base material, and is formed by an injection molding process. The pump body bracket of the infusion pump has the integral structure and is molded integrally by adopting a plastic to improve the alignment precision of each pump body component arranged on the pump body bracket and reduce the working failure rate of the infusion pump; besides, the plastic material has the characteristics of self-lubrication, rub resistance, small deformation and stable size, so the failure rate of the infusion pump is reduced, and the service life of the infusion pump is prolonged.

Description

technical field [0001] The invention relates to a medical device for introducing a medium into a human body, in particular to an infusion pump and a pump body support thereof. Background technique [0002] The infusion pump is a device for safe and precise control of infusion. The traditional bottle infusion method uses the potential energy of the liquid as power, and it is difficult to control the infusion speed and volume stably for a long time, while the infusion pump can meet the requirements of high-precision and rapid infusion. Existing infusion pumps generally include a casing and a pump body assembly in the casing. The pump body assembly includes a peristaltic pump and a motor that drives the peristaltic pump, as well as a pump body bracket for installing and fixing the peristaltic pump and the motor, and installing air bubbles on the bracket. Sensors, blocking sensors, pressure sensors, sound and light alarms and other accessories. The existing pump body support i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/142A61M5/14
Inventor 闫程亮
Owner SHENZHEN MINDRAY SCIENTIFIC CO LTD
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