Correction method of needle tube of medical needle and needle-stand blade and needle twisting device

Abstract

The invention provides a method for correcting a needle tube and a needle stand vane of a medical needle, and a needle twisting device, which belongs to the technical field of medical instrument. The method and the device solve the technical problems that the prior method for correcting the needle tube and the needle stand vane of the medical needle and the prior needle twisting device can only perform the correction singly, and manual operations are easy to cause pollution, and the like. The method for correcting the needle tube and the needle stand vane of the medical needle comprises the following steps: loading materials, facing the needle tube to an active face, and twisting the needle. The needle twisting device is arranged below a needle tube opposite active face device and comprises a stand and a longitudinal cylinder fixed on the stand, wherein the stand is provided with a longitudinal bearing plate, a piston rod of the longitudinal cylinder is fixedly connected with the longitudinal bearing plate, and the longitudinal bearing plate is provided with a transverse cylinder and a bar twisting plate connected with the piston rod of the transverse cylinder. The correction method can perform batch corrections which are quick and accurate, and the needle twisting device has the advantages of automatic batch adjustments, high efficiency, and the like.

Description

technical field [0001] The invention belongs to the technical field of medical machinery and relates to a correction method for a needle tube and a needle seat blade of a medical needle. Background technique [0002] In the medical device industry, medical needles are widely used, such as indwelling needles and venous needles. Currently used medical needles are composed of needle tubes, needle holder handles and the like. Taking the venous needle as an example, there is a cutting edge at the tip of the needle tube. When in use, the sharp part of the needle tip is close to the skin of the human body, and the blade of the needle seat is fixed on the side of the tail end of the needle tube. When puncturing, pinch the blade of the needle seat tightly with your hands, and the cutting edge of the tip is upward, which is conducive to puncturing. If the cutting edge at the tip is downward, it is difficult to puncture. Therefore, when making the needle tube of the medical needle, i...

AI Technical Summary

Problems solved by technology

[0003] At present, when assembling the needle tube and the needle seat handle, there is no special needle tube edge positioning device for medical needles to assist, all need to be done manually, and it is easy to cause the angle between the needle tube and the needle seat handle of the medical needle during the assembly process. Deviation occurs, resulting in product scrap

In addition, manual direct participation in the positioning of the needle edge of the medical needle will cause pollution, make it adhere to germs, and result in unqualified product hygiene requirements

On the other hand, this manual correction method will also affect the entire assembly process, resulting in low work efficiency and difficulty in adapting to the fierce market competition.

[0004] In order to improve work efficiency and reduce product pollution, various automatic assembly machines have been designed, but these automatic assembly machines are not suitable for the positioning of the needle tube direction of medical needles

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