阅读说明：本技术 采用电针刺激经络穴位的瘫痪肢体运动功能重建系统 (Paralytic limb movement function reconstruction system adopting electro-acupuncture to stimulate meridian and acupuncture points ) 是由 王志功 吕晓迎 王博多 于 2019-12-19 设计创作，主要内容包括：本发明涉及医疗装置技术领域,尤其涉及采用电针刺激经络穴位的瘫痪肢体运动功能重建系统,包括肌电信号采集电极阵列、肌电信号处理电路、肌电信号特征提取电路、刺激脉冲生成电路和电针阵列,所述肌电信号采集电极阵列采集健康肢体运动时经络传递的电信号,所述肌电信号处理电路用于处理电信号；所述肌电信号特征提取电路用来提取肌电信号的时域和频域特征；所述刺激脉冲生成电路生成功能电刺激脉冲；所述电针阵列将功能电刺激脉冲引入到目标经络的穴位之下,屏蔽环用来屏蔽功能电刺激脉冲产生的伪迹信号,该系统解决现有技术手指类小关节治疗难以奏效的难题,本发明在瘫痪病人肢体运动功能康复治疗方面有广泛的用途。(The invention relates to the technical field of medical devices, in particular to a paralyzed limb movement function reconstruction system for stimulating meridian points by adopting electro-acupuncture, which comprises an electromyographic signal acquisition electrode array, an electromyographic signal processing circuit, an electromyographic signal characteristic extraction circuit, a stimulation pulse generation circuit and an electro-acupuncture array, wherein the electromyographic signal acquisition electrode array is used for acquiring electric signals transmitted by meridians when healthy limbs move, and the electromyographic signal processing circuit is used for processing the electric signals; the electromyographic signal characteristic extraction circuit is used for extracting time domain and frequency domain characteristics of the electromyographic signal; the stimulation pulse generating circuit generates functional electrical stimulation pulses; the electric needle array introduces the functional electric stimulation pulse to the position below the acupuncture point of the target meridian, and the shielding ring is used for shielding the artifact signals generated by the functional electric stimulation pulse.)

1. The paralyzed limb movement function reconstruction system for stimulating meridian points by adopting electro-acupuncture is characterized by comprising an electromyographic signal acquisition electrode array (1), an electromyographic signal processing circuit (2), an electromyographic signal characteristic extraction circuit (3), a functional electro-stimulation pulse generation circuit (4) and an electro-acupuncture array (5) for realizing functional electro-stimulation;

the electromyographic signal acquisition electrode array (1) is used for acquiring electrical signals transmitted by meridians when healthy limbs move, and the electromyographic signal processing circuit (2) is used for processing electrical signals transmitted by meridians when healthy limbs move; the electromyographic signal characteristic extraction circuit (3) is used for extracting time domain and frequency domain characteristics of the electromyographic signal; the stimulation pulse generating circuit (4) generates functional electrical stimulation pulses according to the time domain and frequency domain characteristics of the electromyographic signals; the electric needle array (5) is used for introducing functional electric stimulation pulses to the positions below the acupuncture points of the target meridians and collaterals to generate electric 'qi' to drive muscle contraction to cause limb movement; the electromyographic signal acquisition electrode array (1) is electrically connected with the electromyographic signal processing circuit (2), and the electromyographic signal processing module (2) is electrically connected with the electromyographic signal characteristic extraction circuit (3); the electromyographic signal characteristic extraction circuit (3) is electrically connected with the functional electrical stimulation pulse generation circuit (4); the functional electrical stimulation pulse generation circuit (4) is electrically connected with the electrical needle array (5);

the myoelectric signal amplification and processing module further comprises a shielding ring (6) which is electrically connected with the ground wire of the myoelectric signal amplification and processing module circuit (2).

2. The system for reconstructing the motor function of paralyzed limbs by stimulating meridian points with an electro-acupuncture according to claim 1, wherein said electromyographic signal processing circuit (2) comprises an electromyographic signal amplifying circuit (21), an electromyographic signal filtering circuit (22) and an electromyographic analog-to-digital converting circuit (23), said electromyographic signal amplifying circuit (21) is electrically connected with said electromyographic signal filtering circuit (22), and said electromyographic signal filtering circuit (22) is electrically connected with said electromyographic analog-to-digital converting circuit (23).

3. The system for reconstructing the motor function of paralyzed limbs by stimulating the meridian and acupoints with an electro-acupuncture according to claim 1, wherein an electromyographic signal feature extraction circuit (3) is disposed between the electromyographic signal processing circuit (2) and the functional electrical stimulation pulse generation circuit (4) for extracting the time domain and frequency domain features of the digital electromyographic signals converted by the analog-to-digital conversion circuit (23), and the functional electrical stimulation pulse generation circuit generates the pulse signals for stimulating the meridian and acupoints of paralyzed limbs according to the obtained time domain and frequency domain features.

4. The paralyzed limb motor function reconstructing system for stimulating meridians and collaterals by electro-acupuncture according to claim 1, wherein said electro-acupuncture array (5) can be a conventional acupuncture needle or a special electro-acupuncture needle with a needle body insulated from a needle tip for conduction.

5. The system for reconstructing the motor function of the paralyzed limbs by stimulating meridian and collateral acupoints with an electro-acupuncture according to claim 1, wherein the shielding ring (6) is used for wrapping the upper end of the limb position acted by the detecting electrode (1) for transmitting electric signals through meridians and collaterals, and the shielding ring (6) is made of conductive materials and is used for shielding artifacts generated by functional electric stimulation pulses during the reconstruction training of the motor function of the paralyzed limbs so as to ensure the stable operation of the system.

Technical Field

The invention belongs to the technical field of medical devices, and particularly relates to a paralyzed limb movement function reconstruction system for stimulating meridian and collateral acupuncture points by adopting an electro-acupuncture needle.

Background

According to the theory of traditional Chinese medicine, the cause of the quadriplegia of the stroke patient is that a part of nerve cells in the brain are damaged or inactivated due to cerebral hemorrhage or ischemia, so that meridian signals called 'qi' for controlling limb movement cannot be generated. The traditional rehabilitation therapy methods comprise medicine, physical therapy, acupuncture and moxibustion, operation methods and the like. For half a century, biomedical engineering researchers have developed methods of functional electrical stimulation. However, the treatment methods to date have some limitations in their effectiveness. Over 70 percent of hemiplegic patients have difficulty in recovering hand function. Taking acupuncture therapy as an example, the traditional acupuncture therapy is to use hands to insert acupuncture needles into a certain acupuncture point of the body of a patient and use acupuncture techniques such as twirling, lifting and inserting to treat paralysis diseases. Its therapeutic effect is slowly manifested by multiple treatments over a long period of time. In other words, for paralyzed limbs, the motor function cannot be shown in the course of the traditional Chinese medicine acupuncture treatment. The electric acupuncture apparatus widely used in hospitals at present replaces the traditional hand acupuncture therapy, and applies the artificially coded electric pulse to the acupuncture needle inserted into the acupuncture point, so as to realize various treatment purposes. For paralyzed limbs, the motor function can not be shown except the vibration of muscles in the electric needle treatment process. The invention aims to construct a meridian electric 'gas' signal bridging type limb movement function reconstruction device excited by an electro-acupuncture needle, which is used for carrying out reconstruction training on limb movement functions of hemiplegic patients including fingers so as to achieve the aim of rehabilitation.

Disclosure of Invention

Aiming at the situation and overcoming the defects of the prior art, the invention provides the paralyzed limb movement function reconstruction system for stimulating meridian points by using an electro-acupuncture, and solves the problems that the finger type facet joint treatment is difficult to be effective and the acupuncture treatment effect on the paralyzed patient by using artificially coded electric pulses is not ideal in the prior art.

The technical scheme is that the paralyzed limb movement function reconstruction system for stimulating meridian and acupoint by using an electro-acupuncture comprises an electromyographic signal acquisition electrode array, an electromyographic signal processing module, an electromyographic signal characteristic extraction circuit, a stimulation pulse generation circuit and an electro-acupuncture array. The electromyographic signal acquisition electrode array is used for acquiring electric signals transmitted by meridians when the healthy limb moves, and the electromyographic signal processing module is used for processing the electric signals transmitted by the meridians when the healthy limb moves; the electromyographic signal characteristic extraction circuit is used for extracting time domain and frequency domain characteristics of the electromyographic signal; the stimulation pulse generating circuit generates functional electrical stimulation pulses according to the time domain and frequency domain characteristics of the electromyographic signals; the electric needle array is used for introducing functional electric stimulation pulses to the positions below acupuncture points of target meridians and collaterals to generate electric 'qi' to drive muscle contraction to cause limb movement; the shielding ring connected with the ground wire of the electromyographic signal processing module is used for shielding so-called 'artifacts' generated by functional electrical stimulation pulses so as to prevent the system from generating self-oscillation.

Preferably, the electromyographic signal processing module includes an electromyographic signal amplifying circuit, an electromyographic signal filtering circuit and an electromyographic signal analog-to-digital conversion circuit, the electromyographic signal amplifying circuit is electrically connected to the electromyographic signal filtering circuit, and the electromyographic signal filtering circuit is electrically connected to the electromyographic signal analog-to-digital conversion circuit.

Preferably, an electromyographic signal feature extraction circuit is arranged between the meridian electrical signal processing module and the functional electrical stimulation pulse generation circuit and is used for extracting time domain and frequency domain features of the electromyographic digital signals after analog-digital conversion, and the functional electrical stimulation pulse generation circuit generates pulse signals for stimulating paralyzed limbs according to the obtained time domain and frequency domain features.

Preferably, the electric needle array can adopt a traditional acupuncture needle or a special electric needle with a needle body insulated from a needle point and conducting electricity.

Preferably, the shielding ring is used for wrapping the upper end of the limb position acted by the detecting electrode for transmitting the electric signal by the channels and collaterals, and is made of a conductive material; the shielding ring is electrically connected with the ground wire of the electromyographic signal processing module.

Preferably, the shielding ring comprises a conductive fabric belt, self-adhesive silk belts are arranged at two end portions of the conductive fabric belt, and an electrode connector connected with the electromyographic signal processing module and the grounding end of the electrical stimulation pulse generating circuit is further arranged on the conductive fabric belt.

The system has the advantages that the system can be used for realizing the self-initiative completion of the paralyzed limb movement function rebuilding training including the fingers of the hemiplegic patient, and the electric signal extracted when the healthy limb of the patient moves is adopted to replace the original artificially coded electric pulse, thereby realizing better treatment effect;

the arrangement of the shielding ring realizes the short circuit to the ground of a large-amplitude pseudomyoelectric signal, namely an artifact, formed by the paralyzed side stimulating electric pulse, thereby reducing the interference caused by the artifact;

in the exercise function reconstruction training, the control signal originates from the brain of a healthy side of a patient, active muscle contraction is controlled through the spinal cord and peripheral nerves, the myoelectric signals related to the movement are generated while the limb movement is generated, and the paralyzed limbs are controlled to do the same movement after the myoelectric signals are regenerated on the paralyzed limbs through the system; in the process, on one hand, the patient obtains motion information through a visual system and enters the brain, and meanwhile, the motion information of the paralyzed limb directly enters the brain through a sensory nerve channel. Thereby promoting the so-called brain remodeling in medicine and achieving the effect of rehabilitation and reconstruction of the motor function of the paralyzed limbs.

Drawings

FIG. 1 is a block diagram of a system for reconstructing the motion function of paralyzed limbs by stimulating meridian and acupoints with an electro-acupuncture;

FIG. 2 is a front view of the paralyzed limb movement function reconstruction system shielding ring for stimulating meridian and collateral acupoints by using an electro-acupuncture;

FIG. 3 is a signal processing circuit diagram of the paralyzed limb movement function rebuilding system of the invention adopting the electric acupuncture to stimulate the meridian point.

The myoelectric signal collecting electrode comprises an myoelectric signal collecting electrode array 1, a myoelectric signal processing circuit 2, a myoelectric signal characteristic extracting circuit 3, a myoelectric functional electrical stimulation pulse generating circuit 4, an electric needle array 5, a myoelectric signal amplifying circuit 21, a myoelectric signal filtering circuit 22, a myoelectric analog-digital conversion circuit 23, a shielding ring 6, a conductive fabric belt 61, a magic tape 62 and an electrode connector 63.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings.