Flow rate setting and micro-adjustment device

Abstract

The invention belongs to the field of medical instruments, and particularly relates to a flow rate setting and micro-adjustment device. According to the device, the infusion speed can be precisely and quickly adjusted, stability of control for the infusion speed after adjustment for the infusion speed is finished is guaranteed, and the infusion speed can be seen easily and quickly. The device is composed of an upper cover, a base, a handle and a dial, wherein the upper cover, the base and the handle are formed independently in an injection molding mode, and the handle is detachable. Due to the design of the handle in the flow rate setting and micro-adjustment device, the infusion speed can be adjusted by one hand, a vein needle wing and a Ruhr connector hook are arranged on the bottom of the handle, and a semi-circle clamping groove is arranged in the bottommost of the handle to fix a lower infusion pipe. A flow rate control principle is that a gap II and a spiral groove III on the device move to form different liquid passing areas so as to adjust liquid flow. Compared with the prior art, the device is attractive in appearance and simple in manufacture process, can precisely, quickly and stably control the infusion speed, and can visually and conveniently display the infusion speed. Additionally, operation can be carried out by one hand, the vein needle wing and the Ruhr connector hook can be arranged, medicine liquid flowing conditions in a speed-adjustment position of an infusion device can be clearly observed, and safety of the whole infusion device is improved.

Description

(1) Technical field [0001] The invention belongs to the field of medical equipment, in particular to a fine-tuning device for flow setting. (2) Background technology [0002] At present, one of the methods used clinically to control the infusion flow rate is to use an infusion pump. Using an infusion pump to control the flow rate has high stability and high cost, and it needs to be used with a power source, which is inconvenient to carry. [0003] The most commonly used clinical method to adjust the infusion flow rate is to control the infusion flow rate through the regulator, and squeeze the infusion catheter through the cooperation of the adjustment wheel and the adjustment groove to reduce or increase the flow of the liquid medicine through the channel. Since the device for adjusting the flow rate does not contact with the liquid medicine, the problem of compatibility between the transfusion material and the therapeutic drug is avoided. In clinical operation, this method...

AI Technical Summary

Problems solved by technology

In clinical operation, this method judges the speed of drug administration by looking at the dripping speed of the liquid. There is a problem of springback in the adjustment wheel. Squeezing the infusion catheter for a long time will cause the infusion catheter to lose its elasticity, and then the flow rate will decrease, making it difficult to ensure the stability of the infusion flow rate.

The clinical operating environment is complex, which may easily cause the regulator to slip in the infusion tube or the adjustment wheel to float, making it difficult to guarantee the safety of patients

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