cricothyropuncture needle

A puncture needle and cricothyroid membrane technology, applied in the field of medical devices, can solve problems such as inadequate disinfection measures, invasion, puncture and difficult control of indwelling depth

A puncture needle and cricothyroid membrane technology, applied in the field of medical devices, can solve problems such as inadequate disinfection measures, invasion, puncture and difficult control of indwelling depth

CN111248984BActive Publication Date: 2020-11-13GENERAL HOSPITAL OF PLA
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  • cricothyropuncture needle
  • cricothyropuncture needle

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A cricothyropuncture needle, comprising a puncture needle body and an outer sleeve, both ends of the outer sleeve have openings, and are divided into front and rear parts by fixed wings, the puncture needle body includes a needle point and a needle shaft, and the The puncture needle body can pass through the front end opening of the outer cannula, and the needle tip protrudes outside the front end opening; the puncture needle body is made of metal material, and further has a structural inner layer and an antibacterial surface layer. The length of the puncture needle body is 30cm; the length of the needle tip is 4cm; the diameter of the needle shaft is 3.5cm; the metal material is selected from 440C stainless steel. The antimicrobial surface layer contains 2.7 wt% copper and 0.22 wt% praseodymium. The thickness of the antibacterial surface layer is 16 μm. The antibacterial surface layer is obtained by a double-glow plating method; wherein, the source material is selecte...

Embodiment 2

[0033] A cricothyropuncture needle, comprising a puncture needle body and an outer sleeve, both ends of the outer sleeve have openings, and are divided into front and rear parts by fixed wings, the puncture needle body includes a needle point and a needle shaft, and the The puncture needle body can pass through the front end opening of the outer cannula, and the needle tip protrudes outside the front end opening; the puncture needle body is made of metal material, and further has a structural inner layer and an antibacterial surface layer. The length of the puncture needle body is 30cm; the length of the needle tip is 4cm; the diameter of the needle shaft is 3.5cm; the metal material is selected from 440C stainless steel. The antimicrobial surface layer contains 3.3 wt% copper and 0.26 wt% praseodymium. The thickness of the antibacterial surface layer is 19 μm. The antibacterial surface layer is obtained by a double-glow plating method; wherein, the source material is selecte...

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Abstract

The invention discloses a puncture needle for a cricothyroid membrane. The puncture needle includes a puncture needle body and an outer sleeve pipe, the puncture needle body is prepared from a metal material, and further has a structural inner layer and an antibacterial surface layer. The antibacterial surface layer with a specific composition is formed on the puncture needle body, so that a better antibacterial effect is given to the puncture needle for the cricothyroid membrane; and in particular, the puncture needle has a stronger antibacterial effect against escherichia coli and staphylococcus aureus.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a cricothyroid puncture device; more specifically, relates to a cricothyroid puncture needle for cricothyroid puncture. Background technique [0002] The cricothyroid membrane is located between the cricoid cartilage and the thyroid cartilage. It is a conical elastic fibrous connective tissue membrane and is part of the elastic cone at the front of the laryngeal elastic membrane. The elastic membrane of the laryngeal cavity is located in the deep surface of the mucous membrane of the laryngeal cavity. It belongs to the connective tissue membrane containing elastic fibers. It is divided into upper and lower parts by the laryngeal chamber. The upper part is called the square membrane and the lower part is called the elastic cone. Initially, it attaches downward in a fan shape to the medial side of the upper edge of the cricoid cartilage. The anterior central pa...

Claims

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Application Information

Patent Timeline
13 Nov 2020
Publication
CN111248984B
IPC
A61B17/34; A61L31/08; A61L31/16
CPC
A61B17/34; A61B17/3417; A61B2017/3454; A61L31/088; A61L31/16; A61L2300/102; A61L2300/404
Inventors
潘菲; 黎檀实