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Indwelling needle

A technology of indwelling needles and needles, which is applied in the field of indwelling needles, can solve the problems of easy stabbing of medical staff or other personnel by the needle tip, injury of medical staff, environmental pollution, etc., and achieve the effect of safe protection against cross-infection, prevention of cross-infection, and convenient use

Active Publication Date: 2014-04-16
JIANGSU SUYUN MEDICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the puncture needle in the infusion operation process is separated from the indwelling needle after the puncture is completed, and the needle tip is easy to puncture medical staff or other personnel, causing medical staff to be injured and cross-infected.

Method used

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Embodiment Construction

[0012] The specific technical solutions of the present invention will be further described below with reference to the accompanying drawings, so that those skilled in the art can further understand the present invention, without limiting their rights.

[0013] Referring to the accompanying drawings, an indwelling needle includes a needle assembly and an injection joint assembly 1. The needle assembly and the injection joint assembly 1 are connected through a catheter 2. The needle assembly includes a cannula seat 8 and a puncture needle. The front end of the cannula seat 8 is provided with an indwelling hose, the cannula seat 8 is equipped with an isolation plug 7, and the cannula seat 8 is divided into a liquid injection chamber and a needle seat chamber by the isolation plug 7, and the puncture needle includes a needle head 9 and a needle handle 4, A handle 5 is provided on the needle handle 4, and a steel needle protective sleeve 3 is set on the outer wall of the needle seat...

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Abstract

The invention discloses an indwelling needle comprising a needle head assembly and an injection connector assembly. The needle head assembly comprises a sleeve seat and a puncture needle, wherein the sleeve seat is divided into an injection cavity and a needle seat cavity by virtue of a separation plug, a handheld part is arranged on a needle handle of the puncture needle, a steel needle protection jacket is sleeved on the outer wall of the needle seat cavity and has a draw-type structure formed by 3 to 4 sections of sleeves, a needle handle check ring is arranged at the rear end of the first section of sleeve, a buckle is arranged between the last section of sleeve and the outer wall of the needle seat cavity, a draw locking mechanism is arranged between each two adjacent sleeves, and a gap corresponding to the handheld part of the needle handle is arranged at the rear end of each section of sleeve. According to the invention, when the puncture is finished and the puncture needle is withdrawn, the steel needle protection jacket is unfolded section by section and is pulled to be separated from the sleeve seat after the puncture needle is completely placed in the steel needle protection jacket, and the puncture needle is wholly wrapped in the steel needle protection jacket which is unfolded, thereby preventing the needle tip from stabbing and wounding medical staff after the puncture is finished, and further, achieving the aims of safety protection and cross infection prevention.

Description

technical field [0001] The invention relates to an infusion medical device, in particular to an indwelling needle. Background technique [0002] With the improvement of people's living standards, indwelling needles with less damage to blood vessels have been widely used clinically. However, the puncture needle in the infusion operation process is separated from the indwelling needle after the puncture is completed, and the needle tip is easy to puncture medical staff or other personnel, causing medical staff to be injured and cross-infected. . Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an indwelling needle which has a reasonable structure, is convenient to use, and can protect the entire puncture needle against the deficiencies of the prior art. [0004] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention is an indwelling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/158
Inventor 秦宏平王书华张庆军彭家启
Owner JIANGSU SUYUN MEDICAL MATERIALS
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