Telescopic deformation needle

Abstract

The invention relates to a retractable transformable needle. The retractable transformable needle comprises a needle seat, a wing and a needle body. The needle seat is provided with a tensioning rotating wheel. The needle body is formed by splicing needle sections. Each needle section comprises a cylindrical outer ring sleeve made of hard materials and an inner ring neck, wherein the inner ring neck is tightly sleeved with the outer ring sleeve and integrated with the outer ring sleeve, the length of the outer ring sleeve and the length of the inner ring neck are equal, and the outer ring sleeve and the inner ring neck are dislocated on the common axis of the outer ring sleeve and the inner ring neck; tensioning holes extending along the axis of the outer ring sleeve are formed in the side wall of the outer ring sleeve at equal intervals. Each tensioning channel is internally connected with a tensioning wire in series, one end of each tensioning wire is fixed to the needle tip, and the other end of each tensioning wire is fixed to the tensioning rotating wheel. The needle becomes soft and is bent easily after entering the blood vessel, and the needle puncturing and infusion efficiency is effectively improved; the retractable transformable needle is especially suitable for pet and wild creature treatment.

Description

technical field

[0001] The invention relates to a medical product, especially a needle. Background technique

[0002] Hard needles are often used in medical infusion, which can smoothly pierce the skin and blood vessel wall for infusion; but in long-term use, its defects are gradually exposed; Because of its hard texture, it is easy for the needle to pierce the inner wall of the blood vessel if it swings too much after entering the blood vessel, causing accidents such as swelling at the needle pricking site and affecting normal infusion; second, because the size is too long, It is easy to accidentally injure fingers or pierce others in daily handling, causing unnecessary injuries; especially with the development of technology and the improvement of living standards, people begin to pay attention to the health of animals around them. When treating pets and wild animals, hard Needles can cause a lot of inconvenience for infusion therapy. Contents of the invention

[0003] ...

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