A device for inspecting the welding quality of an infusion bag and an inspection method using the device

Abstract

The invention, which relates to the transfusion bag inspection field of the pharmaceutical industry, provides a novel welding quality inspection apparatus of a transfusion bag and an inspection method using the same. The apparatus comprises a temperature-consistent water tank; and a pressure control unit is arranged at one side of the temperature-consistent water tank. A triangular support is arranged inside the water tank; the top of the support is connected with the inner wall of the water tank by a rotary knob; a base plate is arranged at the bottom of the support; and a cylinder is connected to the support. According to the inspection apparatus based on the structure, a transfusion bag can be placed on the base plate directly; and after the bag is compressed by a piston connected with the cylinder, the whole support is rotated, so that an included angle of 30 to 75 degrees is formed between the bag body and the horizontal direction and thus the air in the bag is centralized to the position near the bag mouth tube or bag bottom; welding positions at the two sides of the bag body can also be inspected and thus leakage can be inspected by observing whether a continuous bubbling phenomenon occurs. Compared with the prior art, the inspection based on the provided method becomes visual, so that the detection rate of the micro leakage phenomenon is substantially improved.

Description

[0001] Technical field: [0002] The invention relates to the field of inspection of infusion bags in the pharmaceutical industry, in particular to an inspection device for welding quality of an infusion bag and an inspection method using the device. [0003] Background technique: [0004] Large infusion can replenish the patient's body fluid, maintain the balance of the patient's body fluid, and is the best carrier of therapeutic drugs, so it is the most commonly used drug in clinical practice. With the development of pharmaceutical packaging materials, infusion bags have gradually replaced traditional glass infusion bottles in clinical practice, and product quality directly affects the safety of hospital patients. Plastic flexible packaging products are safe, environmentally friendly, with high mechanical strength, transparent and smooth surface, can effectively block the penetration of water vapor, and do not contain plasticizers, fillers, lubricants, etc. that are harmful t...

AI Technical Summary

Problems solved by technology

[0005] Among the existing general technical methods, some soft bag infusion production enterprises use manual pressure to check the welding quality, which is time-consuming and labor-intensive, and the misjudgment rate is extremely high. The leakage of micropores in products that are not welded firmly cannot be manually detected, resulting in Product quality problems caused by leakage become invisible killers

In addition, the infusion bag is visually inspected by fixed cylinder or roller table pressure method, visually inspecting whether there is leakage of liquid medicine, and distinguishing the welding quality of the infusion bag based on this, the main problem is microleakage, which cannot be monitored quickly and intuitively, resulting in welding quality defects. Quickly solve the problem, which will affect the production and use of the product; in addition, there is also a device in the prior art that uses a lifting water tank to detect it, but this device cannot accurately locate the package and cannot exclude external interference. The leak detection rate is low; there are also devices that use vacuum leak detection, but these devices generally have the disadvantage of being unable to detect all aspects of the package

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