This medical patch also provides painless monitoring of drug concentrations in the body.

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In order to accurately understand the concentration of the drug in the patient, sometimes doctors need to frequently draw blood from the patient. For example, vancomycin is an effective antibiotic, but when it is too high, it may cause fatal side effects to patients. Therefore, for the sake of life safety, these patients receive 3-4 times of blood per day when receiving intravenous infusion, but this brings great pain to the patients.

But recently, scientists at the University of British Columbia and the Paul Scherrer Institute in Switzerland have created a new drug monitoring system that can replace the current blood test to improve the patient experience. .

This system contains a small patch with a small pin that is less than 0.5 mm long. Because of the extremely short length of these small needles, they can only penetrate the outermost layer of the skin and cannot reach the dermis layer that is covered with nerves and blood vessels. In other words, these small needles are painless.

This medical patch also provides painless monitoring of drug concentrations in the body.

This patch is painless because it does not touch blood vessels and nerves.

By design, when the patch is attached to the arm, the needle can acquire the tissue fluid under the epidermis, and the sensor analyzes the concentration of the drug in the patient. Due to the "mini" size of these needles, they require only one part per million of tissue fluid.

“This is perhaps one of the smallest medical analysis tools I have ever seen,” said Dr. Urs Hafeli, associate professor of pharmacy at the University of British Columbia.

This medical patch also provides painless monitoring of drug concentrations in the body.

The size of this patch is much smaller than a coin.

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