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Bidirectional constant-current pulse driving system for electrical stimulation treatment

A pulse-driven, electrical stimulation technology, applied in the field of medical systems, can solve the problems of small current, narrow human body load range, and inability to accurately and finely adjust the pulse width and frequency in real time, so as to meet the needs of pulses, form and transmit accurately and quickly, and meet the needs of the human body. Effect of load range

Inactive Publication Date: 2019-12-20
无锡益碧医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a bidirectional constant current pulse drive system for electrical stimulation therapy, which solves the problem that common electrical stimulation systems on the market have a small current, can support a narrow human body load range, and cannot accurately and finely adjust the pulse width and frequency in real time. The problem

Method used

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  • Bidirectional constant-current pulse driving system for electrical stimulation treatment
  • Bidirectional constant-current pulse driving system for electrical stimulation treatment
  • Bidirectional constant-current pulse driving system for electrical stimulation treatment

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Embodiment 1

[0023] refer to Figure 1-3 A bidirectional constant current pulse driving system for electrical stimulation therapy shown includes an FPGA main body 1 and a bidirectional constant current pulse driving unit 2, and the FPGA main body 1 is respectively provided with a communication interface 3, a user parameter register 4, a control Command transmission module 5, pulse driving module 6, analog-to-digital converter 7 and state monitoring module 8, the outside of the communication interface 3 is connected with a processor 9 through a transmission circuit, the pulse driving module 6 and the bidirectional constant current pulse driving unit 2 Connected through the drive circuit, the outside of the bidirectional constant current pulse drive unit 2 is connected to the human body treatment terminal 10 through the transmission circuit;

[0024] The communication interface 3 communicates with the processor 9, the output end of the communication interface 3 is set as a user parameter reg...

Embodiment 2

[0030] Described bidirectional constant current pulse drive unit 2 is provided with pulse drive circuit inside, and the surface of described pulse drive circuit is respectively provided with high voltage constant current diode 21, ultrafast recovery diode 22, PMOS tube 23, NMOS tube 24, high voltage capacitor block 25, The electrode 26 and the sampling resistor 27 are evenly provided with interfaces on the surface of the pulse driving circuit, and the interfaces include a transmission interface 28 , a measurement interface 29 and a connection interface 20 respectively.

[0031]The number of the high-voltage constant current diode 21 and the PMOS transistor 23 is set to two, and the number of the ultra-fast recovery diode 22 and the NMOS transistor 24 is set to four, and the PMOS transistor 23 and the NMOS transistor 24 are respectively set as high-voltage PMOS transistors. tube and high-voltage NMOS tube, the number of transmission interfaces 28 is set to two groups, and the tw...

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Abstract

The invention belongs to the field of medical systems, and specifically relates to a bidirectional constant-current pulse driving system for electrical stimulation treatment. Aiming at the problems that the existing supportable human body load range is narrow and the pulse width frequency cannot be precisely and finely adjusted in real time, the bidirectional constant-current pulse driving systemis provided. The bidirectional constant-current pulse driving system comprises an FPGA main body and a bidirectional constant-current pulse driving unit, wherein the FPGA main body is internally provided with a communication interface, a user parameter register, a control command transmission module, a pulse driving module, an analog-to-digital converter and a state monitoring module. By arrangingthe FPGA main body and the bidirectional constant-current pulse driving unit, the formation and transmission of a pulse current are quickly realized; meanwhile, under the joint action of an additionally-arranged high-voltage constant-current diode and a high-voltage MOS tube, the bidirectional constant-current pulse driving unit can support the current as high as 80 mA or even hundreds mA, ensurethe integrity of pulse signal waveforms, can support the human body impedance range as high as 0-2000 ohm, can adjust the pulse width to the nanosecond level in real time, precisely controls the pulse width and adjusts the pulse width in real time.

Description

technical field [0001] The medical system field of the present invention particularly relates to a bidirectional constant current pulse drive system for electrical stimulation therapy. Background technique [0002] Electrical stimulation therapy is a medical method. Electrical stimulation therapy is suitable for hysterical paralysis. Electrical stimulation therapy uses a certain intensity of pulse current to stimulate one or more groups of muscles through a pre-set program to induce muscle movement or simulate normal voluntary movement to achieve improvement or recovery. The purpose of stimulating the function of the muscle or muscle group. [0003] In the electrical stimulation therapy system applied to the human body, it is necessary to transmit electric pulses to the body load through the electrodes for treatment. The impedance of the human body will change during electrical stimulation. Experiments have proved that bidirectional constant current pulses can achieve bett...

Claims

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Application Information

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IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 赵极远
Owner 无锡益碧医疗科技有限公司
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