Single-use pipeline and pump head integrated split type micropump

Abstract

The invention relates to a split type miniature peristaltic pump, in particular to a miniature peristaltic pump, wherein a pipeline is integrated to a pump head, and both the pump head and the pipeline can be used for one time. The micropump comprises a pump body, a motor and a pump head and pipeline assembly. The pump head and pipeline assembly comprises a pump head seat, an eccentric wheel, a pump head roller and a circumferential pressing pipeline; a pump head seat center hole is formed in the pump head seat, a through hole is coaxially formed in the bottom of the pump head seat center hole, and a pipeline inlet / outlet groove is formed in one side of the pump head seat; the pump head roller is arranged in the pump head seat center hole, a pump head roller center hole is formed in the pump head roller, and the eccentric wheel is arranged in the pump head roller center hole and connected with an output shaft of the motor through an eccentric hole; and a pump head roller groove is formed in the outer wall of the pump head roller, and the circumferential pressing pipeline is sleeved with the pump head roller groove along the outer wall of the pump head roller. According to the micropump, the structure of the assembly formed by the pump head and the pipeline can guarantee that the pump is compact in structure and small in size; and the single-use purpose can be achieved, the pollution risk is lowered effectively, and the experiment success rate is increased to a great extent.

Description

technical field [0001] The invention relates to a split type miniature peristaltic pump, in particular to a miniature peristaltic pump in which the pipeline has been integrated on the pump head, and the pump head and the pipeline can be used at one time. Background technique [0002] Currently, peristaltic pumps are one of the frequently used devices in the fields of cell biology, life science and related medical research. At present, conventional peristaltic pumps are large in size, and it is difficult to integrate them into other equipment; especially, the pump heads and pipelines equipped with conventional peristaltic pumps have to be reused many times, which is not convenient for disinfection and cleaning. It brings the risk of exogenous impurities and pollution, which is not suitable for applications requiring high experimental success rates; and the rollers of the pump head in the existing peristaltic pumps are cylindrical, and some of the pipelines have no special pos...

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Problems solved by technology

At present, conventional peristaltic pumps are large in size, and it is difficult to integrate them into other equipment; especially, the pump heads and pipelines equipped with conventional peristaltic pumps have to be reused many times, which is not convenient for disinfection and cleaning. It brings the risk of exogenous impurities and pollution, which is not suitable for applications requiring high experimental success rates; and the rollers of the pump head in the existing peristaltic pumps are cylindrical, and some of the pipelines have no special positioning structure, resulting in The pipeline may move during the operation of the pump, resulting in a change in the flow rate in the experiment, which is not suitable for experiments requiring accurate flow rate; the existing peristaltic pump structure is not suitable for long-term integration of the pipeline into the pump head, which will cause Long-term compression of the pipeline and sticky blockage

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