Containing piece, pump head and pressure pump

Abstract

The embodiment of the invention provides a containing piece, a pump head and a pressure pump, and relates to the field of medical instruments. The problems that in an existing infusion pressure pump,dust easily enters a pump body, and a telescopic rod stretches out and draws back to injure people are solved. The containing piece is used for being connected to the exterior of a pump body, the pumpbody is provided with a containing cavity used for containing a piston rod, the containing piece is provided with a sliding channel used for being communicated with the containing cavity, and the sliding channel is used for enabling the free end, stretching out of the pump body, of the piston rod to stretch in. The pump head comprises the pump body and the containing piece. The pressure pump comprises the pump head. The containing piece is connected to the outer portion of the pump body, the sliding channel in the containing piece is communicated with the containing cavity, the free end, stretching out of the containing cavity, of the piston rod stretches into the containing cavity, in the reciprocating movement process of the piston rod, the containing piece has the dustproof effect on the free end of the piston rod, and external dust is prevented from being brought into the pump body in the stretching and retracting process of the free end of the piston rod. And meanwhile, the containing piece further has a protection effect on the free end of the piston rod, and personal injury to people in the telescopic process is avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a container, a pump head and a pressure pump. Background technique [0002] In clinical submucosal resection, endoscopic submucosal injection can be achieved by infusion pressure pump. In the existing infusion pressure pump, there are problems that dust easily enters the pump body and the expansion and contraction of the telescopic rod easily causes harm to people. Contents of the invention [0003] The purpose of the present invention includes, for example, to provide an accommodating part, which can improve the problems of the existing infusion pressure pumps, that dust easily enters the pump body and that the expansion and contraction of the telescopic rod easily causes injury to people. [0004] The purpose of the present invention is also to provide a pump head, which can improve the problems of the existing infusion pressure pumps that dust easily enters the pump body and ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention includes, for example, to provide a container, which can improve the problems of the existing infusion pressure pumps, that dust is easy to enter the pump body and the expansion of the telescopic rod is easy to cause injury to people.

[0004] The purpose of the present invention is also to provide a pump head, which can improve the problems of the existing ...

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