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Preparation method of pressure-sensitive adhesive tape for blocking ultrasonic probe

A pressure-sensitive tape, ultrasonic probe technology, applied in pressure-sensitive films/sheets, adhesives, film/sheet-like adhesives, etc. Clear, easy-to-use, quick-to-replace effects

Inactive Publication Date: 2020-05-19
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultrasound probes that touch intact skin are low-risk probes, but after each use, the coupling agent is usually wiped with a non-sterile paper towel, and the probe is cleaned or disinfected with alcohol-containing wipes, which can easily cause germs to remain Lead to cross-infection, and long-term use of alcohol wiping will have a great impact on the material of the acoustic lens in the ultrasound probe, thereby affecting the image clarity and the service life of the probe
Ultrasound probes used in surgery or interventional ultrasound probes are high-risk probes, and the removal of couplant is more difficult

Method used

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  • Preparation method of pressure-sensitive adhesive tape for blocking ultrasonic probe
  • Preparation method of pressure-sensitive adhesive tape for blocking ultrasonic probe
  • Preparation method of pressure-sensitive adhesive tape for blocking ultrasonic probe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Preparation of acrylate copolymer glue: first add 294.3 g of solvent ethyl acetate to a 1L four-necked flask, and then add reaction monomers in sequence according to the reaction ratio: acrylic acid (AA) 6 g, butyl acrylate (BA) 172.8g, isooctyl acrylate (EHA) 41.4g, vinyl acetate (VAc) 54g, stir evenly and heat up in a water bath. When the temperature in the flask rises to about 80-82°C, dissolve 0.72g of benzoyl peroxide in 21g of ethyl acetate, and then dropwise add it into a four-necked flask to initiate a polymerization reaction, wherein the dropping time is 1h, dropwise After adding, carry out insulation 1h subsequently; After insulation finishes, start dripping initiator solution again, wherein initiator solution is the ethyl acetate that the benzoyl peroxide of 0.36g is dissolved in 10.8g, the time of dropping is 20min, insulation The time is 40min; after the heat preservation is finished, add the initiator solution dropwise again at last, wherein the initia...

Embodiment 2

[0032] (1) Preparation of acrylate copolymer glue: first add solvent ethyl acetate 279.6g and isopropanol 14.7g to a 1L four-necked flask, then add reaction monomers in sequence according to the reaction ratio: acrylic acid (AA) 6g, Butyl acrylate (BA) 172.8g, isooctyl acrylate (EHA) 41.4g, vinyl acetate (VAc) 54g, stir evenly and heat up in a water bath. When the temperature in the flask rises to about 80-82°C, dissolve 0.72g of benzoyl peroxide in 21g of ethyl acetate, and then dropwise add it into a four-necked flask to initiate a polymerization reaction, wherein the dropping time is 1h, dropwise After adding, carry out insulation 1h subsequently; After insulation finishes, start dripping initiator solution again, wherein initiator solution is the ethyl acetate that the benzoyl peroxide of 0.36g is dissolved in 10.8g, the time of dropping is 20min, insulation The time is 40min; after the heat preservation is finished, add the initiator solution dropwise again at last, where...

Embodiment 3

[0038] (1) The preparation of the acrylate copolymer glue is the same as in the examples.

[0039] (2) Preparation of pressure-sensitive adhesive tape: Take 21g of glue A and 9g of glue B to obtain a mixed glue, then add 1.29mg of aluminum acetylacetonate, stir evenly, use a spreader to sizing on the polyethylene substrate, and the thickness of the sizing is 50 μm, and finally placed in an oven and cured at 100°C for 15 minutes to obtain a pressure-sensitive adhesive tape.

[0040] The pressure-sensitive adhesive tape prepared above is subjected to a performance test: the initial adhesion force is a No. 4 ball, and the 180° peeling force is 4.83N·25mm -1 (there is residual glue on the steel plate), the holding force is 2.75h.

[0041] The pressure-sensitive adhesive tape prepared above was applied to a medical ultrasonic instrument to observe its image clarity. compared to figure 1 (a), it can be seen that the image definition in embodiment 3 is also relatively clear, as fig...

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Abstract

The invention discloses a preparation method of a pressure-sensitive adhesive tape for blocking an ultrasonic probe. The method comprises the following steps: firstly, carrying out solution polymerization on acrylate monomers to obtain a copolymer glue solution; then adding a cross-linking agent into the glue solution, applying glue to the base material, and finally curing and drying the adhesiveto obtain the pressure-sensitive adhesive tape. The acrylate copolymer pressure-sensitive adhesive layer is used for replacing an ultrasonic coupling agent, so that rapid bonding between the ultrasonic probe and the inner surface of the protective cover applied to an operation or an interventional operation can be achieved, wherein air between the ultrasonic probe and a measured object can be exhausted, and therefore the definition of an ultrasonic image is guaranteed; besides, the pressure-sensitive adhesive base material can resist disinfection of a conventional disinfectant, can be quicklytorn off after being used, does not leave residual adhesive, and is simple and convenient to operate and quick to replace in conventional ultrasonic inspection.

Description

Technical field: [0001] The invention belongs to the technical field of biomedical materials, and in particular relates to a preparation method of a pressure-sensitive adhesive tape for ultrasonic probe barrier. Background technique: [0002] Ultrasound has been widely used in clinical diagnosis and interventional therapy, but it cannot meet strict aseptic requirements, and there is a great risk of cross-infection in the hospital. There are two main reasons: one is that the probe material has poor corrosion resistance and cannot be routinely disinfected; the other is that the time between ultrasound examinations and interventional procedures is limited and rapid and effective disinfection cannot be performed. In general clinical ultrasound intervention, the method of wrapping the probe with sterile plastic film is usually used, which is time-consuming and inefficient, and may delay the condition of the emergency or critically ill patients. How to quickly and effectively cle...

Claims

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Application Information

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IPC IPC(8): C09J7/38C09J133/08C08F220/18C08F220/06C08F218/08
CPCC08F220/18C08L2205/025C09J7/385C09J133/08C09J2423/046C09J2433/00C09J2475/006C08L33/08
Inventor 石淑先秦苑夏宇正王同乐陈晓农张东樊碧发毛鹏王新星
Owner BEIJING UNIV OF CHEM TECH
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