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Disposable Laryngeal Vent Tube

A ventilation tube and ventilation catheter technology, which is applied in the field of medical devices, can solve the problems that the bacteriostatic effect cannot be improved, the bacteriostatic effect cannot be provided enough, and the like, and the effect of high bacteriostatic effect can be achieved.

Active Publication Date: 2020-12-04
GENERAL HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, for the throat ventilation tube made of PVC, the above-mentioned prior art still cannot provide sufficient antibacterial effect; especially, it still cannot improve enough antibacterial effect against common Pseudomonas aeruginosa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A kind of laryngeal ventilation tube, made of PVC, comprises esophageal small balloon, ventilation catheter and pharyngeal large balloon; The large pharyngeal balloon has a side hole for ventilation; The distal end of the ventilation catheter has a position indication mark, It is used to indicate the insertion depth; the inner and outer surfaces of the small esophageal balloon, the ventilation catheter and the large pharyngeal balloon all have antibacterial materials; the antibacterial materials are formed by coating the antibacterial material coating liquid.

[0055] The antibacterial material coating liquid is formed by mixing cationic water-based polyurethane dispersion liquid and nanometer silver-chitosan dispersion liquid. The volume ratio of the cationic aqueous polyurethane dispersion to the nanometer silver-chitosan dispersion is 1:32.

[0056] The cationic water-based polyurethane dispersion is prepared according to the following method: heat isophorone diisocy...

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PUM

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Abstract

The invention discloses a laryngeal air tube. The laryngeal air tube is made of polyvinyl chloride (PVC) and comprises a small esophageal balloon, an air catheter and a large pharyngeal balloon, wherein the inner surface and the outer surface of the small esophageal balloon are both provided with antibacterial materials which are coated by an antibacterial material coating liquid. The laryngeal air tube made of PVC can provide an enough bacteriostatic effect, and particularly has a high bacteriostatic effect on common pseudomonas aeruginosa.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular, it relates to a respiratory airway; more specifically, it relates to a disposable laryngeal airway. Background technique [0002] In battlefield rescue, ensuring a clear airway and maintaining normal oxygen exchange is the primary task when rescuing severely wounded and cardiopulmonary arrest wounded. Rescuers must establish an artificial airway at the first time, so as to ensure that the wounded's heart and lungs can normally absorb from the external environment. Oxygen, and reduce the casualty's risk of suffocation and brain death caused by breathing disorders. Studies have shown that at least about 5% of the wounded died directly from suffocation caused by airway obstruction. [0003] As an artificial airway widely used in field first aid, the laryngeal ventilator belongs to supraglottic ventilation equipment, and is mainly used for airway management of casualties under...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M16/04A61M25/10A61L29/08A61L29/10A61L29/16A61L29/14
CPCA61L29/085A61L29/106A61L29/14A61L29/16A61L2300/104A61L2300/404A61M16/0434A61M2205/0205A61M2205/273A61M2210/065A61M25/10187A61M16/0402A61M16/0409A61M2210/005C08L5/08C08L75/04
Inventor 潘菲黎檀实宋海楠杨健陈威刘钰
Owner GENERAL HOSPITAL OF PLA