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Tubular product for effectively reducing condensate water of breathing pipeline

A technology for condensing water pipes and breathing pipes, applied in the field of medical materials, can solve the problems of insufficient tensile strength and elongation at break, causing ventilator-related pneumonia, hidden safety hazards of hospital patients, etc., and achieve excellent tensile strength and elongation at break. Long rate, beneficial to large-scale industrial production, simple and convenient foaming process

Active Publication Date: 2020-01-10
EXCELLENTCARE MEDICAL HUIZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, since most of the breathing tubes in the breathing equipment have a slender lumen structure, and the gas with a saturated humidity of more than 30°C is transported in the tubes, condensed water is easily attached to the inside of the tubes, and not only condensation may occur The danger of water pouring into the respiratory tract can also cause ventilator-associated pneumonia, which poses a huge safety hazard to hospitals and patients
In the prior art, in order to prevent the generation of condensed water in the breathing circuit, a heating guide wire is often added to the breathing circuit or a thermal insulation test is wrapped outside the circuit to keep the inside of the circuit dry, but this not only increases the medical cost, but also It also increases the loss of pipelines and brings many unsafe factors
At the same time, the breathing tubes in the prior art also have insufficient tensile strength and elongation at break. During the transportation of equipment, or during the use of patients, accidents of breathing tube rupture are very likely to occur, which is harmful to the safety of patients. make an impact

Method used

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  • Tubular product for effectively reducing condensate water of breathing pipeline
  • Tubular product for effectively reducing condensate water of breathing pipeline

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0076] In a preferred embodiment, the preparation method of the modified silicone oil comprises the following steps:

[0077] Step a: In parts by weight, disperse 0.05-0.1 parts of dispersant, 25-35 parts of deionized water and 150-250 parts of solvent at a stirring speed of 20-30 r / min for 10-20 minutes to obtain mixture A;

[0078] Step b: Add 10-15 parts of alkoxysilane and 20-25 parts of silicone oil into the mixture A obtained in step a, and disperse at a stirring speed of 80-120 r / min for 1-3 hours to obtain a mixture B;

[0079] Step c: Add the platinum catalyst dropwise to the mixture B obtained in step b, mix well and react fully to obtain the modified silicone oil.

[0080] In a preferred embodiment, the preparation method of the modified silicone oil comprises the following steps:

[0081] Step a: In parts by weight, disperse 0.08 parts of dispersant, 30 parts of deionized water and 196 parts of solvent at a stirring speed of 25 r / min for 15 minutes to obtain mixtu...

Embodiment 1

[0115] Embodiment 1 of the present invention provides a pipe material that can effectively reduce condensed water in breathing tubes, including the following raw materials in parts by weight: 95 parts of thermoplastic material, 1.5 parts of microsphere foaming agent, and 3.5 parts of silicone oil.

[0116] The thermoplastic material is a mixture of LDPE material and EVA material, and its weight ratio is 1:0.31; the melt index of the LDPE material at 230°C and 2.16kg is 5.0g / 10min, and the grade is F410-7; the EVA The melt index of the material at 200°C and 5kg is 1.5g / 10min, the content of VAC is 16wt%, and the grade is 630. The microsphere foaming agent has a particle size of 17.5 μm, a foaming temperature of 165° C., and a brand name of FARIDA TEP-158. The silicone oil is a mixture of modified silicone oil and methyl silicone oil, and its weight ratio is 1:1.5; the viscosity of the methyl silicone oil at 25°C is 350cst, purchased from Foshan Hongsi Chemical Co., Ltd., model ...

Embodiment 2

[0125] Embodiment 2 of the present invention provides a pipe material that can effectively reduce condensed water in the breathing pipeline, including the following raw materials in parts by weight: 93 parts of thermoplastic material, 1 part of microsphere foaming agent, and 2 parts of silicone oil.

[0126] The thermoplastic material is a mixture of LDPE material and EVA material, and its weight ratio is 1:0.1; the melt index of the LDPE material at 230°C and 2.16kg is 5.0g / 10min, and the grade is F410-7; the EVA material The melt index of the material at 200°C and 5kg is 1.5g / 10min, the content of VAC is 16wt%, and the grade is 630. The microsphere foaming agent has a particle size of 17.5 μm, a foaming temperature of 130° C., and a brand name of FARIDA TEP-158. The silicone oil is a mixture of modified silicone oil and methyl silicone oil, and its weight ratio is 1:1; the viscosity of the methyl silicone oil at 25°C is 340cst, purchased from Foshan Hongsi Chemical Co., Ltd....

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Abstract

The invention discloses a tubular product for effectively reducing condensate water of a breathing pipeline. The tubular product comprises the following raw materials in parts by weight: 85 to 105 parts of a thermoplastic material, 0.5 to 5 parts of a microsphere foaming agent, and 1 to 8 parts of silicone oil. The experimental test result shows that the prepared tubular product for effectively reducing the condensate water of the breathing pipeline has good mechanical properties such as thermal insulation property, tensile strength, and elongation at break and meanwhile has excellent hydrophobic property, so that tiny water droplets are more easily delivered to a patient along with gases, and thus formation of the condensate water is reduced while the airtightness of the tubular product is ensured. In addition, the adopted materials are all safe and environmentally friendly materials, physical foaming is adopted, foaming can be performed both under normal pressure and pressurization,the foaming technology is simple and convenient and fast, and large-scale industrial production is facilitated.

Description

technical field [0001] The invention relates to the field of medical materials, in particular to a pipe material that can effectively reduce the condensed water of the breathing pipeline. Background technique [0002] Medical respiratory equipment such as ventilators, as a core life support equipment, plays a vital role in clinical anesthesia respiratory management, respiratory failure treatment, rescue and resuscitation of critically ill patients. [0003] Among them, most of the breathing tubes in the breathing equipment have a slender lumen structure, and the gas in the tube is transported with a saturated humidity of more than 30°C, so the inside of the tube is very easy to adhere to condensed water, not only the possibility of condensation The danger of water pouring back into the respiratory tract can also cause ventilator-associated pneumonia, causing huge safety hazards to hospitals and patients. In the prior art, in order to prevent the generation of condensed wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L83/04C08L23/12C08J9/32
CPCC08J9/32C08J2323/06C08J2423/08C08J2483/04C08J2323/12C08J2323/08
Inventor 吴玉平
Owner EXCELLENTCARE MEDICAL HUIZHOU