Medical infusion pump

Abstract

The invention relates to a medical infusion pump which comprises a support housing, wherein an infusion tube is arranged in the support housing; the support housing in the length direction of the infusion tube is set as the longitudinal direction; and the support housing in the radial direction of the infusion tube is set as the transverse direction. The medical infusion pump is characterized in that the medical infusion pump further comprises at least three pressure fingers arranged in the longitudinal direction, wherein straight tooth structures are arranged on the two transverse sides of part or the whole of the pressure fingers; a pair of support shafts is longitudinally and fixedly arranged on the two sides of each straight tooth structure; the support shafts are rotationally connected with a plurality pairs of linked power-assisted arms; a round tooth structure is arranged at one end of each linked power-assisted arm; the round tooth structures are correspondingly meshed with the straight tooth structures; when the pressure fingers are far away from the infusion tube, the round tooth structures drive one corresponding pair of linked power-assisted arms to rotate inwards, and when the pressure fingers are the furthest from the infusion tube, transverse space between centers of head parts of a pair of linked power-assisted arms is equal to or approximately equal to the outer diameter of the infusion tube; and when the pressure fingers are close to the infusion tube, a pair of linked power-assisted arms rotates outwards, and the heads of the linked power-assisted arms depart from the infusion tube.

Description

technical field [0001] The invention relates to a peristaltic pump, specifically a medical infusion pump, which belongs to the technical field of medical instruments. Background technique [0002] The infusion pump is usually a mechanical or electronic control device, which acts on the infusion catheter by squeezing it to control the infusion speed. It is often used in situations that require strict control of infusion volume and drug dosage, such as in the application of vasopressor drugs, antiarrhythmic drugs, intravenous infusion or intravenous anesthesia for infants and young children. [0003] Specifically, as image 3 As shown, one section of the infusion tube 1 is fixed on the fixing device of the infusion pump. The infusion pump has a section of several pressure fingers, and the pressure fingers sequentially squeeze the infusion tube. figure 1 It is a schematic diagram of the action process of one of the pressure fingers. Multiple pressure fingers sequentially pres...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is: after the existing infusion pump is used for a period of time, the infusion tube is squeezed and cannot be restored to its original shape, which affects the accuracy of the liquid medicine delivery and causes adverse effects on the treatment of the patient's condition

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