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Indwelling needle

A technology of indwelling needles and needle holders, applied in the field of indwelling needles, can solve the problems of easily stabbing medical staff, and achieve the effects of avoiding medical infection, reducing workload, and simplifying the operation process

Inactive Publication Date: 2018-09-25
冯莞婷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide an indwelling needle to solve the problem that the existing indwelling needle is easy to stab the medical staff when it is pulled out

Method used

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Examples

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Embodiment Construction

[0034] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] like figure 1 and figure 2 As shown, the present invention provides an indwelling needle, comprising:

[0036] The indwelling needle holder 1 has an inner cavity, and an annular limiting groove (not shown in the figure) is opened on the inner wall of one end of the indwelling needle holder 1;

[0037] The isolation plug 2 is arranged in the inner cavity to divide the inner cavity into a first chamber 10 and a second chamber 11, and the limiting groove is located in the second chamber 11;

[0038] A catheter 3, which is arranged at one end of the indwelling needle hub 1 and communicates with the first chamber 10;

[0039] A puncture needle 4, one end of which punctures the isolation plug 2 and protrudes from the catheter 3, and the other end of the puncture needle 4 protrudes from the second chamber 11 to the outside of the indwellin...

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PUM

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Abstract

The invention provides an indwelling needle. The indwelling needle comprises an indwelling needle seat, an isolation plug, a catheter, a puncturing steel needle, a stop block, a plurality of limitingblocks and a baffle, wherein the indwelling needle seat comprises an inner cavity; the isolation plug is arranged in the inner cavity; the catheter is arranged at one end of the indwelling needle seat; one end of the puncturing steel needle punctures the isolation plug and extends out of the catheter; the stop block is clamped in the indwelling needle seat and abuts against the isolation plug; theplurality of limiting blocks are circumferentially arranged in one end, away from the catheter, of the indwelling needle seat; the baffle is arranged in the inner cavity and connected with the stop block through a spring, the spring sleeves the puncturing steel needle, and a plurality of openings matched with the plurality of limiting blocks in shape and size are formed in the edge of the baffle;the baffle is rotated, and when the plurality of openings in the baffle correspond to the plurality of limiting blocks, the plurality of openings in the baffle penetrate through the plurality of limiting blocks; the baffle is rotated, and when the plurality of openings in the baffle and the plurality of limiting blocks are staggered, the baffle is limited. The puncturing steel needle cannot puncture a medical worker due to protection of the spring, and medical infection is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, to an indwelling needle. Background technique [0002] Venous indwelling needle is a common medical device in nursing work. It is easy to use and reduces the number of punctures for patients, thereby reducing repeated punctures during clinical infusion, reducing the pain of puncture for patients and the workload of clinical nurses. It has been widely used in clinical practice today. [0003] When the indwelling needle is in use, the catheter and the puncture steel needle are inserted into the patient's blood vessel together. After stabilization, the infusion needle is pulled out, and only the catheter is left in the patient's blood vessel for infusion. During the above operation process, when the puncture steel needle is extracted, the extracted needle may scratch the medical staff, thereby causing infection to the medical staff, endangering the health of the medic...

Claims

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Application Information

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IPC IPC(8): A61M5/158
CPCA61M5/158A61M2005/1586A61M2005/1587
Inventor 冯莞婷
Owner 冯莞婷
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