Infusion bottle or infusion bag and preparation method thereof

Abstract

The invention discloses an infusion bottle or an infusion bag and a preparation method thereof. The infusion bottle or the infusion bag comprises a liquid vessel, wherein the liquid vessel is in a flat structure when filled with liquor; the width of the liquid vessel is greater than the thickness of the liquid vessel on the cross section perpendicular to a port and a tail connecting line; the liquid vessel is formed by compounding dies of a left part and a right part; and die compounding lines are intersecting lines between the symmetry plane in the thickness direction and the side wall surface of the liquid vessel. According to the infusion bottle or the infusion bag, the defect that the high-thickness ratio medical soft bags cannot be produced in the conventional injection molding process is overcome, and the requirement on product quality is met; the infusion bottle or the infusion bag is reasonable in structure and convenient to use, is shrunk in volume after being used and is easy to dispose; and the cost performance of raw materials is high, and the cost is reduced. Particularly, the die compounding lines of the liquid vessel is arranged on the side wall in the thickness direction, the product molding can be effectively ensured, the product molding rate is improved, and the product quality is ensured.

Description

technical field [0001] The invention belongs to the technical field of liquid containers, and relates to a medical self-shrinking transfusion bottle or transfusion bag and a preparation method thereof. Background technique [0002] At present, one of the infusion containers mainly used in the pharmaceutical industry is a plastic infusion bottle (bag). Patent 200710134792.1 "A Medical Infusion Soft Bag and Its Manufacturing Method and Shaping Method" discloses that the manufacturing method of plastic infusion bottles (bags) is a one-step injection molding process and a two-step injection, pulling and blowing process. It includes: the two-step process of injecting, pulling and blowing is: preparing medical plastic raw materials for infusion soft bags; mixing the prepared medical raw materials; injecting the mixed medical raw materials into the blank form of infusion soft bags through injection molding machines; The blank of the infusion bag made is placed and solidified and s...

AI Technical Summary

Problems solved by technology

The disadvantage is that under the two-step process, the thickness uniformity of the side wall surface 4 is poor, and the thickness difference on both sides is large; during the production process of the blowing mold, cooling water channels cannot be installed here, and the product molding cannot be effectively guaranteed

Moreover, under the conditions of the two-step process, the bottle in which the ratio of the width of the bag body 3 or the major axis 7 to the thickness or the minor axis 6 is greater than 3 as proposed in the patent 200710134792.1 "A Soft Bag for Medical Infusion and Its Manufacturing Method and Shaping Method" cannot be realized type

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