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Hollow fiber sleeve for protecting medical endoscope from holmium laser damage and application of sleeve

A holmium laser and endoscope technology, applied in the field of medical endoscopes, can solve problems such as damage and major maintenance costs, and achieve the effects of reducing impact, improving long-term service life, and improving impact resistance.

Active Publication Date: 2019-09-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the holmium laser causes damage to the inner tube of the medical endoscope due to improper operation of the medical staff during the use of the medical endoscope, thereby resulting in relatively large maintenance costs, the present invention has prepared a device that can protect the holmium laser from contacting water. The hollow fiber sleeve that effectively protects the blasting energy and thermal energy generated later can reduce the damage of the holmium laser to the medical endoscope pipeline and improve the service life of the medical endoscope

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In this embodiment, a method for preparing an impact-resistant and heat-insulating hollow fiber sleeve that can protect against holmium laser damage, the specific steps are as follows:

[0040] Hydrotalcite modification: take 100g of hydrotalcite FM308, and ultrasonically disperse it in 1000mL deionized water, and the ultrasonic time is 20min. Afterwards, 1000 mL of ethylene glycol was added to adjust the pH value of the mixed solution to 8, and heated and stirred at 60° C. for 30 min. Afterwards, the mixed solution containing hydrotalcite FM308 was suction-filtered, washed with deionized water, repeated three times, and dried at 60° C. for 8 hours to obtain pretreated modified hydrotalcite FM308.

[0041] SiO 2 Preparation of hollow microspheres: ultrasonically disperse 40g tetraethyl orthosilicate in 200mL ethanol solution containing 20g urea, stir at room temperature for 20min to obtain a silicon dispersion; then drop the silicon dispersion at a rate of 2 drops / seco...

Embodiment 2

[0044] In this embodiment, a method for preparing an impact-resistant and heat-insulating hollow fiber sleeve that can protect against holmium laser damage, the specific steps are as follows:

[0045] Hydrotalcite modification: take 100g of hydrotalcite FM300, and ultrasonically disperse it in 1000mL deionized water for 40min. Afterwards, 500 mL of glycerol was added to adjust the pH value of the mixed solution to 9, and heated and stirred at 60° C. for 50 min. Afterwards, the mixed solution containing hydrotalcite was suction-filtered, washed with deionized water, repeated three times, and dried at 60°C for 8 hours to obtain pretreated modified hydrotalcite FM300.

[0046] SiO 2 Preparation of hollow microspheres: ultrasonically disperse 60g of propyl orthosilicate in 400mL of ethanol solution containing 30g of urea, stir at room temperature for 40min to obtain a silicon dispersion; then add the silicon dispersion dropwise at a rate of 5 drops / second In a mixed solution of ...

Embodiment 3

[0049] In this embodiment, a method for preparing an impact-resistant and heat-insulating hollow fiber sleeve that can protect against holmium laser damage, the specific steps are as follows:

[0050] Hydrotalcite modification: take 100g of hydrotalcite HT-P, and ultrasonically disperse it in 1000mL deionized water for 30min. Afterwards, 250 mL of isobutanol was added to adjust the pH value of the mixed solution to 9, and heated and stirred at 60° C. for 40 min. Afterwards, the mixed solution containing hydrotalcite HT-P was suction-filtered, washed with deionized water, repeated 3 times, and dried at 60°C for 8 hours to obtain pretreated modified hydrotalcite HT-P.

[0051] SiO 2 Preparation of hollow microspheres: ultrasonically disperse 50g of butyl orthosilicate in 300mL of ethanol solution containing 25g of urea, stir at room temperature for 30min to obtain a silicon dispersion; then add the silicon dispersion dropwise at a rate of 3 drops / second In a mixed solution of ...

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Abstract

The invention discloses a hollow fiber sleeve for protecting a medical endoscope from holmium laser damage and an application of the sleeve. The hollow fiber sleeve is obtained by spinning the spinning dope; the spinning dope consists of the following components in parts by mass: 100 parts of N, N-dimethylformamide, 20-40 parts of thermoplastic polyurethane, 2-4 parts of antioxidants, 2-4 parts of defoaming agents, 5-10 parts of hydrotalcite and 4-8 parts of SiO2 hollow microspheres. The hollow fiber sleeve can effectively protect the blasting energy and heat energy generated after the holmium laser contacts water, can effectively prevent the medical endoscope pipeline from being damaged due to misoperation in the use process, and prolongs the service life of the medical endoscope, thereby increasing the continuous use time of the endoscope and furthest reducing the maintenance times of the endoscope.

Description

technical field [0001] The invention belongs to the technical field of medical endoscopes, and in particular relates to a hollow fiber sleeve for protecting a medical endoscope from holmium laser damage and an application thereof. Background technique [0002] Medical endoscopes are used to observe the internal body cavity of the human body. Through it, the tissue morphology of internal organs can be directly observed, which can improve the accuracy of doctors' diagnosis. With the continuous development of modern medical technology, endoscope has been widely used in clinical treatment, and its unique advantages are widely used by medical units, especially the development of minimally invasive surgery must rely on endoscope. [0003] Calculus is a frequent disease in recent years. Its main symptom is the formation of solid lumps in the lumen of ducts or luminal organs (such as kidney, ureter, gallbladder or bladder, etc.) in the human body. It is mainly seen in the gallbladde...

Claims

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Application Information

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IPC IPC(8): A61B1/307A61B18/26D01F6/94D01F1/10
CPCA61B1/307A61B18/26A61B2018/00517D01F1/10D01F6/94
Inventor 郑骏李均楼理纲陈斯尧毛彬冯靖祎
Owner ZHEJIANG UNIV
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