Conformal biodegradable implantable flexible energy supply device and preparation method thereof

Abstract

The invention provides a conformal biodegradable implantable flexible energy supply device and a preparation method thereof. The conformal biodegradable implantable flexible energy supply device is used for providing power for a micro / nano implantable medical device embedded in a body, and comprises a flexible substrate layer, and a flexible power supply device negative electrode and a flexible power supply device positive electrode, which are arranged on the flexible substrate layer. The flexible power supply device negative electrode and the flexible power supply device positive electrode obtain electric energy through redox reaction with oxygen and glucose in body biological tissue fluid; and the flexible power supply device negative electrode and the flexible power supply device positive electrode lead out a negative lead wire and a positive lead wire for connecting the micro / nano implantable medical device embedded in the body to supply power respectively. The device has a certainbending resistance and tension resistance function, can be conformal with other implanted devices, can be used for supplying power for any shape of micro / nano implantable medical device, can realizelong-time stable power supply and is high in energy transmission efficiency.

Description

technical field [0001] The invention relates to an implantable energy supply device. In particular, it relates to a conformal biodegradable implantable flexible energy supply device and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of new technologies, new processes, and new materials, implantable medical devices have continuously broken through technical bottlenecks, and more and more micro / nano implantable medical devices have been applied to the human body. These micro / nano implantable medical devices can be used to continuously monitor the physiological health status of the human body, so as to provide the trend of disease changes to help the treatment of diseases; they can also be used to accurately treat diseases in specific parts, etc. Among these micro / nano implantable medical devices, there is a class of biodegradable devices that have attracted widespread attention from all walks of life in recent years. T...

AI Technical Summary

Problems solved by technology

[0003] Limited by the current state of the art, most of these biodegradable micro / nano implantable medical devices work with electrical energy, however, powering implantable devices in vivo remains a challenge so far

Some researchers use a degradable radio frequency energy transmission module for energy supply, but this method first requires an external energy supply source, and secondly, there are problems of energy transmission direction limitation and low energy transmission efficiency

There are also researchers who use energy harvesters to collect the mechanical energy of human body movement and then convert it into electrical energy. However, this method requires the device to be implanted in a specific long-term moving part, such as the heart, which limits the scope of use of the device.

More importantly, due to the limitation of the development of material science, the implantable energy supply devices used in these current methods are not completely degradable, and still require a second operation to remove them.

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