Hemodynamics of Smart Stent Monitor | Medgadget

Researchers at the Georgia Institute of Technology have developed a smart stent that can monitor hemodynamic parameters. Wireless, battery-free devices can send data out of the body and are powered via a magnetic-field-based wireless energy transmission system, similar to the wireless chargers available on many smartphones. This system is useful for long-term monitoring and may help patients with cardiovascular problems to avoid repeated angiography. It can also act as an early warning alarm for problems such as changes in blood pressure.

Stents are very important in treating obstruction of blood vessels and are intended to maintain proper blood flow through the blood vessels for a long period of time after placement. However, it does not provide information as to whether the goal was achieved, along with the further diagnosis needed to monitor the patient’s hemodynamics over time. Usually this includes angiography, which can be expensive and inconvenient for the patient, and in some cases the associated dyes and radiation can cause unwanted side effects.

“After deploying the stent, patients may relapse with the same problem without knowing if the problem has been resolved,” said Woon Hong Yo, a researcher involved in the study. “It could be a stent defect, or a stent deployment problem, or a patient’s blood flow problem.”

To address these issues, these researchers have developed smart stents that can wirelessly measure and monitor hemodynamic parameters from a vantage point within the vascular system. The device includes a soft sensor that can be delivered using a catheter just like a normal stent.

“This electronic system is designed to wirelessly deliver hemodynamic data such as arterial pressure, pulse, and blood flow to an external data acquisition system, and because it is so small and thin, it uses a catheter inside. It can be delivered anywhere. Body, “Yo said. “It’s like a stent with multiple tricks on the sleeves.”

Implants do not use batteries and acquire energy wirelessly via an external charging technique that uses a magnetic field for energy transfer. This system may help patients protect their long-term cardiovascular health after stenting.

“Basically, this sensor system can be placed anywhere in the body,” says Yeo. “Another aspect of this technology platform is that it can be used as a wearable system in addition to being an embedded sensor system. Think about the smartwatch and how much of its bulk is occupied by circuits and batteries. Try removing all of these to make your device thinner than a regular band aid. It’s an almost invisible health monitor that you can wear anywhere. “

Study at Science Advances: Fully implantable wireless batteryless vascular device with printed soft sensor for multiple detection of hemodynamics

Via: Georgia Institute of Technology Hemodynamics of Smart Stent Monitor | Medgadget

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