Anti-particle flat-shaped syringe needle for injection and processing device and method of syringe needle

Abstract

The invention discloses an anti-particle flat-shaped syringe needle for an injection and a processing device and method of the syringe needle. When a traditional syringe needle for an injection is used, impurities particles are easily sucked in the syringe needle, the syringe needle cannot be used, an improved structure is difficult to uniformly standardize, and an existing conical syringe needleis high in price and difficult to popularize. According to the anti-particle flat-shaped syringe needle for the injection, connectors for an insertion head, a flat pipe, a straight pipe and a needle tubing are communicated from bottom to top in sequence; a rotation shaft in the processing device penetrates through a bearing roller, multiple guide-in grooves for the syringe needle are formed in theouter circumference face of the bearing roller, the central angles corresponding to the guide-in grooves for the syringe needle are smaller than or equal to 140 degrees, a positioning cover is correspondingly arranged on each guide-in groove, and a press gap is closed to the lower end of each guide-in groove for the syringe needle; a pressure transmission assembly comprises a first positioning wheel, a press wheel and a first transmission wheel which sleeve the vertical shaft from top to bottom in sequence, the lower portion of the bearing roller is coaxially provided with a second transmission wheel meshed with the first transmission wheel, and the first positioning wheel and the bearing roller are arranged at an interval. The anti-particle flat-shaped syringe needle is used for injection.

Description

Technical field: [0001] The invention specifically relates to a particle-proof flat needle for injections and a processing device and method thereof. Background technique: [0002] At present, known medical syringe needles are round metal tubes, and the front end is obliquely truncated into a point, so as to penetrate into the skin or the rubber cap of the medicine bottle. The disadvantage of this needle is that when the rubber cover is pierced, sometimes small rubber pieces are entrained in the needle and mixed into the liquid medicine. This is a problem that is not allowed in medical operations, but it is often difficult to avoid. In order to solve this problem, a side hole type injection needle has appeared on the market. The tip of this injection needle is closed, which is a conical point, and a side hole is opened about six millimeters away from the tip, so that there will be no small rubber lumps entrained in the needle. But the shortcoming of this kind of needle is ...

AI Technical Summary

Problems solved by technology

However, the manufacturing method is rough, the manufacturing cost is high and the manufacturing is difficult. The small size of the needle makes it difficult to standardize and conform in the manufacturing process, resulting in unstable performance in preventing rubber particles from entering the liquid medicine.

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