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Self-healing ultrasonic phantom material as well as preparation method and application thereof

A self-healing, ultrasonic technology, applied in the field of ultrasonic imaging materials and medical materials, can solve the problems of not providing good self-healing performance, affecting performance, and unsatisfactory long-term stability of materials, achieving excellent ultrasonic imaging performance, low cost, Realize the effect of large-scale production application

Active Publication Date: 2021-12-24
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This gel, which can be used as an ultrasound phantom material, still contains more than 70% of water, so there is still the possibility of water volatilization affecting performance
[0010]In summary, the ultrasonic performance of the existing oil-gel ultrasonic phantom material is different from that of the human body, or it cannot provide good self-healing performance, or the material is stable for a long time Sex is not ideal

Method used

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  • Self-healing ultrasonic phantom material as well as preparation method and application thereof
  • Self-healing ultrasonic phantom material as well as preparation method and application thereof
  • Self-healing ultrasonic phantom material as well as preparation method and application thereof

Examples

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preparation example Construction

[0084] The present invention also provides a preparation method for the above-mentioned self-healing ultrasonic phantom material, including:

[0085] Heating to dissolve the thermoplastic elastomer, oil solvent, scatterer and compatibilizer into a uniform solution, degassing and cooling.

[0086] Further, the method also includes the following sub-steps:

[0087] Step 1', oil solvent, scatterer and compatibilizer are heated and stirred until becoming a homogeneous solution;

[0088] Step 2', add the thermoplastic elastomer, heat and stir until it becomes a homogeneous solution.

[0089] The oil solvent, the scatterer and the compatibilizer are premixed with heating and stirring to form a homogeneous solution system, so that the scatterer and the compatibilizer can be more uniformly dispersed in the thermoplastic elastomer gel. If the thermoplastic elastomer, oil solvent, scatterer and compatibilizer are added at one time, the viscosity of the reaction system will be high, an...

Embodiment 1

[0120] Get mineral oil 360g, hydroxyethyl cellulose 6g, ethyl cellulose 10g, diethylene glycol ether 38g, propylene glycol butyl ether 18g. Mix the above-mentioned raw materials and place them in a three-necked flask, raise the temperature to 170°C, heat and stir for 5 hours until it becomes a uniform solution; then add 40 g of pre-dried SEBS to the system, heat and stir for 2.5 hours until it becomes a uniform solution, pour the solution into Put it in the mold, and heat it in a high-temperature oven at 170°C for 35 minutes to remove air bubbles, cool to room temperature, and demould to obtain the tissue-mimicking ultrasonic phantom material.

[0121] Wherein, the tissue-imitating ultrasonic phantom material obtained is a gel block with uniform shape, light yellow translucence, and no air bubbles.

Embodiment 2

[0123] Take 60 g of mineral oil, 0.5 g of hydroxyethyl cellulose, 1 g of ethyl cellulose, 3 g of diethylene glycol ethyl ether, and 2 g of propylene glycol butyl ether. Mix the above raw materials and place them in a three-necked flask, raise the temperature to 160°C, heat and stir for 4 hours until it becomes a uniform solution; then add 10 g of pre-dried SEBS to the system, heat and stir for 2 hours to obtain a uniform solution, and pour the solution into the mold , and heated in a high-temperature oven at 160°C for 10 minutes to remove air bubbles, cooled to room temperature, and demolded to obtain tissue-mimicking ultrasonic phantom materials.

[0124] Wherein, the tissue-imitating ultrasonic phantom material obtained is a gel block with uniform shape, light yellow translucence, and no air bubbles.

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Abstract

The invention provides a self-healing ultrasonic phantom material as well as a preparation method and application thereof. The phantom material is oleogel comprising a thermoplastic elastomer, an oil solvent, a scatterer and a compatilizer component, wherein a hydrogen bond exists between the scatterer and the compatilizer, hydrophobic interaction exists among the thermoplastic elastomer, the oil solvent and the compatilizer, and the thermoplastic elastomer has a microcrystalline structure, so that the ultrasonic phantom material has self-repairing performance; and the scatterer improves the sound velocity of the ultrasonic phantom material, so that the ultrasonic phantom material has an excellent ultrasonic developing effect and reaches a degree similar to that of human tissues. The thermoplastic elastomer, the oil solvent, the scatterer and the compatilizer are dissolved, defoamed and cooled to obtain the ultrasonic phantom, and the preparation method is simple. The ultrasonic phantom has ultrasonic imaging performance similar to that of a human body, is good in self-repairing performance and puncture-resistant, and can be used as an ultrasonic puncture and biopsy training phantom for medical staff.

Description

technical field [0001] The invention belongs to the field of medical materials, in particular to the field of ultrasonic imaging materials, in particular to a self-healing ultrasonic phantom material and its preparation method and application. Background technique [0002] Medical ultrasound images can provide basis, reference and assistance for the diagnosis of body injury or disease, pregnancy test, puncture or surgical monitoring and navigation. , technicians and other irreplaceable tools. In recent years, the application of ultrasound phantoms in ultrasound biopsy training has been gradually emphasized and expanded. Since ultrasound biopsy is an invasive operation, ultrasound phantoms with self-healing properties (or self-healing) can significantly improve the utilization of ultrasound phantoms. At present, most ultrasonic phantoms with self-healing properties are made of hydrogel materials. The large amount of water contained in the hydrogel will slowly volatilize ove...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L1/28C08J3/09
CPCC08L53/025C08J3/092C08J3/098C08J3/095C08L2207/04C08L2205/03C08L2205/02C08L2205/08C08L2205/04C08L2312/00C08L2203/02C08J2353/02C08J2401/28C08L1/284C08L1/28
Inventor 陈晓农张朔石淑先
Owner BEIJING UNIV OF CHEM TECH
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