Composition for acoustic wave probe, silicone resin for acoustic wave probe using same, acoustic wave probe, ultrasonic probe, acoustic wave measurement device, ultrasonic diagnostic device, photoacoustic wave measurement device, and ultrasonic endoscope
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A silicone resin and composition technology, which is applied in ultrasonic/sonic/infrasonic diagnosis, sonic diagnosis, infrasonic diagnosis, etc., can solve the problems of low mechanical strength of silicone resin, and achieve improved tear strength and tensile rupture strength. Effect
Active Publication Date: 2017-08-01
FUJIFILM CORP
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[0015] Silicone resins are soft and have low mechanical strength when used alone
Method used
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Embodiment 1
[0247] Vinyl-terminated polydimethylsiloxane (manufactured by GELEST, INC., trade name "DMS-V42", mass average molecular weight 72,000) 68 parts by mass, methylhydridosiloxane-dimethylsiloxane copolymer (manufactured by GELEST, INC., trade name "HMS-301", mass average molecular weight 2,000, ratio of methylhydrosiloxane 27mol%) 2 parts by mass, magnesium oxide (specific gravity 3.6, average primary particle size 19nm, hexamethyldihydrosiloxane Silazane (HMDS (surface treatment)) 30 parts by mass was kneaded by a kneader for 2 hours to obtain a uniform paste. After adding 0.05 parts by mass of a platinum catalyst solution (manufactured by GELEST, INC., trade name "SIP6832.2", Pt concentration 2% by mass) and mixing, degassing under reduced pressure was carried out and placed in a metal mold of 150mm x 150mm. Heat treatment was carried out at 60° C. for 3 hours to obtain silicone resin sheets with a thickness of 1 mm and 2 mm, respectively.
Embodiment 2
[0249] As the inorganic compound particles, 30 parts by mass of titanium oxide (specific gravity 4.2, average primary particle diameter 14nm, hexamethyldisilazane (HMDS) surface treatment) was used, and the treatment was carried out in the same manner as in Example 1. , to obtain the prescribed silicone resin sheet.
Embodiment 3
[0251] As the inorganic compound particles, 30 parts by mass of iron oxide (specific gravity 5.2, average primary particle diameter 21 nm, hexamethyldisilazane (HMDS) surface treatment) was used, and the treatment was carried out in the same manner as in Example 1. , to obtain the prescribed silicone resin sheet.
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Abstract
Provided is a composition for an acoustic wave probe, a silicone resin for acoustic wave probe using same, an acoustic wave probe, an ultrasonic probe, an acoustic wave measurement device, an ultrasonic diagnostic device, a photoacoustic wave measurement device, and an ultrasonic endoscope, said composition containing a polysiloxane mixture comprising: a polysiloxane having a vinyl group; a polysiloxane having at least two Si-H groups in the molecular chain thereof; and at least one type of inorganic compound particles. The inorganic compound particles have an average primary particle size of less than 25 nm, and are selected from the group consisting of magnesium oxide, titanium oxide, iron oxide, zinc oxide, zirconium oxide, barium oxide, tin oxide and ytterbium oxide. With this composition for an acoustic wave probe, the silicone resin for acoustic wave probe using same, the acoustic wave probe, the acoustic wave measurement device and the ultrasonic diagnostic device, it is possible to greatly enhance the hardness and mechanical strength (tensile fracture strength, tensile fracture elongation, tear strength and wear resistance) of silicone resins while keeping acoustic wave attenuation low. Moreover, the present invention is capable of enhancing the sensitivity of ultrasonic probes, photoacoustic wave measurement devices and ultrasonic endoscopes using a cMUT as a transducer for ultrasonic diagnosis.
Description
technical field [0001] The present invention relates to a composition for an acoustic wave probe, a silicone resin for an acoustic wave probe using the composition for an acoustic wave probe, an acoustic wave probe, and an ultrasonic probe. In addition, the present invention relates to an acoustic wave measurement device, an ultrasonic diagnostic device, a photoacoustic wave measurement device, and an ultrasonic endoscope. Background technique [0002] An acoustic wave measuring device uses an acoustic wave probe that irradiates an object or site with an acoustic wave (hereinafter simply referred to as an object) and receives the reflected wave (echo) to output a signal. An electrical signal converted from the reflected wave received by the acoustic wave probe is displayed as an image. As a result, the inside of the object is visualized and observed. [0003] As the acoustic wave, ultrasonic wave, photoacoustic wave, etc., an appropriate frequency is selected according to ...
Claims
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Application Information
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