Analysis of scalable wireless wear-resistant thermocouple design principle in the dark

Expandable wear-resistant thermocouple work in the absence of the battery, will be wrapped in a shunt or implant stents, to adjust the aneurysm blood flow in the damaged blood vessels.

in order to reduce cost and rapid manufacturing, stretchable wear-resistant thermocouple of 3 d printing in making use of aerosol spray elastomers substrate to produce conductive silver trace. Add 3 d manufacturing method can generate tiny electronic characteristics in one step, without having to use in cleanroom traditional multi-step lithography process.

the device should be aerosol spray first presentation, 3 d printing to create can be implanted for wireless monitoring, can strain sensing system.

” We wear the advantages of the thermocouple is that it can be seamlessly integrated into the clinical doctors have used in the treatment of aneurysms of the existing medical stent or shunt, & throughout; Georgia institute of technology, George W. Woodruff, an assistant professor in the college of Woon - Hong Yeo said. Mechanical engineering and Wallace H. Kurt Georgia institute of technology and emory university department of biomedical engineering. “ We can use it to measure into the aneurysm sac of blood flow, to determine the degree of aneurysm healing, and changes in blood flow alert doctors. ”

use duct system insert wear-resistant thermocouple signal and use inductive coupling in order to realize wireless detection of biomimetic hemodynamic cerebral aneurysms. The study on August 7, 2019 in & other; Senior science & throughout; The journal.

to track the development of the brain aneurysm now needs to use may have adverse side effects of contrast material repeat angiography imaging. Because of the cost and potential negative impact, must limit the use of imaging methods. However, located in the wear-resistant thermocouple in the blood vessels can allow more duplicate assessment without using imaging dye.

for completed surgery patients, we can not use any imaging tool should judge aneurysm occlusion. We will be able to accurately measure the blood flow to detect small to 0 per second. The change of 5 metres.

six-story wear-resistant thermocouple made of the biological compatibility of polyimide, the grid design of two separate layer consists of silver nanoparticles and dielectric and soft polymer coating materials. Wear-resistant thermocouple will be wrapped around the shunt or stent, the shunt or stent diameter must be less than 2 or 3 mm to fit the blood vessels.

wear-resistant thermocouple including coil, used to collect from another coil based on body outside of the transmission of electromagnetic energy. By implantation of wear-resistant thermocouple flow of blood to change its capacitance, it changed by wear-resistant thermocouple signals arrive at the third coil in vitro. In the lab, Yeo and his collaborators measured the distance fixed in flesh of wear-resistant thermocouple capacitance change, 6 centimeters to simulate brain tissue.

” Traffic and we can measure the capacitance changes is very relevant, & throughout; Yeo said. “ We have to make wear-resistant thermocouple is very thin and deformable, so it can response to small changes in the blood flow. ”

aerosol spray application of 3 d printing method for creating is necessary for wear-resistant thermocouple can be stretched and flexible electronic equipment is very important. The method USES spray aerosol particles to develop pattern, allowing more fine feature sizes than traditional ink-jet printing.

we can control the printing speed, print width and injection amount of materials. Can optimize parameters for each material, and we can use a wide range of viscosity of the material. Recommendation:

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