Multifunctional implanted gastrointestinal electrical stimulation system

Abstract

The invention provides a multifunctional implanted gastrointestinal electrical stimulation system in the technical field of medical apparatus and instruments. The system comprises an in-vivo implantation device and an in-vitro control device and has the functions of multichannel gastrointestinal electrical stimulation signal generation, in-vivo gastrointestinal track pressure detection, in-vivo gastrointestinal electrical detection and in-vitro wireless charging, wherein the in-vivo implantation device comprises an energy receiving coil, an implanted electrical stimulator, a stimulating electrode, a detection electrode and a minitype pressure sensor. According to the invention, the setting and regulation of electrical stimulation parameters and transmission of various control commands can be flexibly achieved through the wireless communication between the in-vitro control device and the in-vivo implantation device, and the in-vivo implantation device can transmit the in-vivo gastrointestinal track pressure and the gastrointestinal electrical detection result to the in-vitro control device in real time for receiving and storage. By using the system, the working life of a device can be greatly prolonged without frequently changing a battery when operation is carried out; and the limitation of the millisecond-stage impulse in the existing gastrointestinal stimulator is broken through, the intestinal pressure and intestinal electrical measurement accuracy can be improved, and convenience is provided for detecting or researching the effect of the gastrointestinal electric stimulation.

Description

Technical field [0001] The invention relates to an implantable gastrointestinal electrical stimulation system, in particular to an implantable gastrointestinal electrical stimulation system that can be wirelessly charged and has the functions of gastrointestinal electrical stimulation, gastrointestinal electrical signal detection and gastrointestinal cavity pressure signal detection. The stimulation system belongs to the technical field of medical devices. Background technique [0002] Gastrointestinal functional diseases are common clinical diseases, and data show that functional gastrointestinal diseases account for more than half of outpatients in gastroenterology. Due to the unclear cause and pathogenesis, there is still a lack of ideal treatment methods. In recent years, gastrointestinal electrical stimulation methods have received widespread attention. A large number of research results and clinical trials have confirmed their therapeutic effects on gastroparesis, short bo...

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Problems solved by technology

[0004] In addition, in order to understand the curative effect of the electrical stimulation method, it is necessary to monitor the changes in the gastrointestinal motility of the test subjects during the electrical stimulation treatment. The empty inspection method monitors parameters such as gastrointestinal contraction and peristalsis, gastrointestinal slow-wave rhythm or intestinal transit time. There are problems such as complex test system, high cost, and inconvenient operation, which greatly affect the summary of the efficacy of electrical stimulation methods and the discussion of the mechanism of action. For example, the effect of gastrointestinal electrical stimulation on gastrointestinal contraction and the control of small intestine and colonic slow-wave rhythm disturbance have not yet been clearly concluded, and long-term human clinical trials are even more difficult to carry out.

[0005] To sum up, the existing implantable electrical stimulators have single functions, limited pulse parameter adjustment range, and limited energy sources, which are far from meeting the needs of clinical treatment and research, and have become one of the main obstacles hindering the development of gastrointestinal electrical stimulation technology. one

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