Multi-head type entry needle

An injection needle and multi-head technology, which is applied in the field of syringes, can solve the problems such as the insufficiency of the structure and the inability to adjust the protruding length of the needle tube, and achieve the effects of small size, compact coordination and high degree of coordination.
CN110384844APending Publication Date: 2019-10-29BERPU MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BERPU MEDICAL TECH CO LTD
Publication Date
2019-10-29

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Abstract

The invention relates to a multi-head type entry needle. The multi-head type entry needle comprises a needle seat provided with a concave cavity and a needle tubing fixing hole, a needle tubing fixedto the needle seat, a shunting seat arranged in the concave cavity of the needle seat and provided with a through hole, a cone seat, a negative pressure seat and an adjusting seat, wherein the throughhole penetrates through the upper end of the needle tubing, the cone seat is provided with a channel, an outer thread and a ring-shaped boss are arranged in the middle, a warning protrusion and a first self-destructed protrusion are arranged on the side surface of the ring-shaped boss, the bottom of the ring-shaped boss is arranged in the concave cavity of the needle seat, the bottom of the ring-shaped boss is assembled with the shunting seat to form a cavity, the negative pressure seat sleeves outside the needle seat, and is internally provided with a cross separating plate, the cross separating plate limits the downstream of the needle seat and is provided with a needle tubing passing hole, the adjusting seat sleeves the middle of the cone seat and the top of the negative pressure seat,and is provided with a ladder through hole, and the ladder through hole is internally provided with an inner thread and a second self-destructed protrusion. According to the multi-head type entry needle, the extension length of the needle tubing can be adjusted, and the self-destructed function and the warning function before self-destructing are achieved. The whole size is small, the parts are compact in matching, the matching degree is high, and the multi-head type entry needle can be assembled in one time.
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Description

technical field

[0001] The invention relates to the technical field of syringes, in particular to a multi-headed injection needle. Background technique

[0002] In the existing multi-head injection needle, the structure between the parts is not stable enough to adjust the protruding length of the needle tube, and the disposable self-destruct structure needs to be redesigned. Contents of the invention

[0003] The present invention aims at the above problems and provides a multi-headed injection needle.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A multi-head injection needle, comprising: a needle base, which is provided with a concave cavity with an open top surface and a needle tube fixing hole communicating with the bottom surface of the cavity; a needle tube, which is passed through and fixed in the concave cavity of the needle base and the needle tube fixing hole; The seat is arranged in the cavity...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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