Revolutionary technology: Flexible implants that wrap around arteries to regulate blood pressure
Researchers at Pennsylvania State University have revealed the development of a new generation of flexible, expandable medical implants that can adhere directly to the walls of arteries.
This flexible implant, when attached, works to regulate high blood pressure through precise electrical stimulation, in a promising step towards treating one of the most widespread chronic diseases in the world.
This innovation is based on a small bioelectronic device known as CaroFlex, made using 3D printing techniques from flexible and biocompatible gel materials, allowing it to adhere to internal tissues without the need for surgical sutures, which represents an important shift compared to traditional rigid implants made of metal or plastic.
According to the researchers, the device targets a sensitive area in the carotid artery known as the carotid sinus, where nerve receptors are responsible for regulating blood pressure via the barometric reflex. By sending low-intensity electrical pulses, the device stimulates these receptors to reset the body's response to blood pressure.
Treatment-resistant cases
High blood pressure is one of the leading causes of heart disease and death worldwide, affecting a large percentage of adults. About 10% of patients suffer from a condition known as drug-resistant hypertension, where traditional drug treatments do not effectively control the condition.
The research team indicates that the new technology may provide an alternative treatment option for these patients, through direct control of the nerve signals that regulate blood pressure, instead of relying entirely on medication.
Flexible design that mimics body tissues
The new device is distinguished by being made of conductive and flexible gel materials that allow it to expand with the natural movement of the artery without causing tissue damage, unlike traditional devices that often require surgical fixation and may lead to irritation or damage to the walls of blood vessels.
Testing on animal models also showed that the device was able to significantly reduce blood pressure during periods of electrical stimulation, with initial indications of its biocompatibility and safety on surrounding tissues during the monitoring period.
e-Biomedicine
Researchers believe that this type of implantation represents a shift towards what is known as bioelectronic medicine, where soft and smart devices are used to interact with the nervous system and vital functions in the body in a precise and direct manner. The team confirms that the development is still in its experimental stages, with work underway to improve performance and explore the possibility of moving to clinical trials on humans in the future, should safety and effectiveness be proven on a wider scale.
If successful, this innovation could open the door to new treatment methods for high blood pressure, based on precise neurological control rather than long-term medication, potentially transforming the management of one of the world's most widespread diseases.
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