Jun 07, 2022 12:30:00

'Direct Sound Printing (DSP)' is a technology that prints objects directly inside the body by simply applying sound waves to the body.

Researchers at the University of Concordia in Canada have devised a technology called 'Direct Sound Printing (DSP)' that solidifies a liquid by irradiating it with sound waves. By advancing DSP research, it is expected to generate medical implants inside the human body without making an incision.

Direct sound printing | Nature Communications

https://doi.org/10.1038/s41467-022-29395-1

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DSP irradiates ultrasonic waves from the outside of the container, generates bubbles in the liquid inside using a phenomenon called cavitation , and further vibrates the bubbles with the sound waves to raise the temperature of the bubbles to about 15,000 degrees. It raises and solidifies the liquid.

It is said that the temperature rise is very local and occurs only for a short time, and it is executed without affecting the surrounding area. It is said that complex 3D objects can be constructed by moving the ultrasonic irradiation device along a specific path.

The research team has succeeded in outputting the shapes of 'maple leaves,' 'ears,' and 'nose' using materials similar to human skin and pig tissue.

It is hoped that DSP will be able to generate implants directly in the body without surgical intervention. In addition to the human body, there are prospects for various fields such as repairing parts without dismantling the machine.