Check valve of infusion pump

Abstract

The invention relates to a check valve of an infusion pump. the check valve comprises an upper valve cover, a lower valve cover and a valve element, wherein the upper valve cover is fixedly connectedto the upper part of the lower valve cover, connecting parts of the upper valve cover and the lower valve cover form one injection inner cavity, the valve element is arranged in the infusion inner cavity, the valve element comprises a round pressing piece and a plurality of push rods fixedly connected to the lower part of the round pressing piece, the round pressing piece and the plurality of pushrods are of an integrated silicone structure, the upper part of the infusion inner cavity is communicated into the upper valve cover, the lower part of the infusion inner cavity is communicated intothe lower valve cover, the upper valve cover and the lower valve cover are conical, a plurality of elastic conical pillars are arranged in the injection inner cavity, the lower parts of the elastic conical pillars are fixedly arranged in the lower valve cover, the upper parts of the elastic conical pillars are tightly attached to the outer sides of the push rods, a plurality of convex pillars arearranged in the infusion inner cavity, are vertically downward and make contact with the upper surface of the round pressing piece. The check valve is simple in structure, convenient to operate, goodin sealing property, capable of preventing reverse leakage and low in production cost.

Description

technical field [0001] The invention relates to a matching product of an infusion pump, in particular to a one-way valve of an infusion pump. Background technique [0002] When filling the liquid medicine, it is necessary to forcefully open the valve of the one-way valve with the cone of the syringe. During the operation, it is necessary to ensure that the core rod of the syringe does not slip. The one-way valve port and the tail of the syringe are ejected in reverse. The whole operation process needs to be very cautious and skilled, which increases the difficulty of the doctor's work. Contents of the invention [0003] In order to solve the above problems, the present invention provides an infusion pump check valve with simple structure, convenient operation, good sealing performance, reverse leakage prevention and low production cost. [0004] The technical solution of the present invention is: a one-way valve for an infusion pump, the one-way valve includes a valve bod...

AI Technical Summary

Problems solved by technology

[0002] When filling the liquid medicine, it is necessary to forcefully open the valve of the one-way valve with the cone of the syringe. During the operation, it is necessary to ensure that the core rod of the syringe does not slip. The one-way valve port and the tail of the syringe are ejected in reverse. The whole operation process needs to be very careful and skilled, which increases the difficulty of the doctor's work.

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