CN210961971U

CN210961971U - Nerve monitoring system

Info

Publication number: CN210961971U
Application number: CN201921173392.6U
Authority: CN
Inventors: 史志刚; 李健聪
Original assignee: Jiangsu Baining Yingchuang Medical Technology Co ltd
Current assignee: Jiangsu Baining Yingchuang Medical Technology Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-07-10
Anticipated expiration: 2029-07-24

Abstract

A nerve monitoring system comprises a flexible nerve probe needle and a nerve monitoring device, wherein the flexible nerve probe needle generates stimulation current, and the nerve monitoring device collects electromyographic signals; the monitoring body module is arranged in the host, the signal acquisition electrode is electrically connected with the monitoring body module, and the host is also provided with an operation prompt lamp, an alarm prompt lamp, a display screen and a buzzer. The probe of the flexible nerve probe needle consists of a plurality of high-conductivity silicone rubber wires. The utility model has small occupation area, does not influence the operation space, and is convenient and rapid to use.

Description

Nerve monitoring system

Technical Field

The utility model relates to a medical instrument, especially a can be handheld, need not a large amount of wire and connect, be used for showing the guardianship terminal equipment of neural probe detection result, specifically speaking are neural guardianship system.

Background

In an operation, a nerve monitor is often used for monitoring nerves to provide help for the operation, generally speaking, a nerve monitor in the prior art comprises a monitoring device and a stimulating electrode, the stimulating electrode is connected with the monitoring device through a power line and receives stimulating current and pulse generated by the monitoring device to act on nerves of a human body, and myoelectric signals generated by the nerves are captured by the monitoring device and are displayed or alarm on the monitoring device after being processed. The monitoring electrode is connected with human tissue to form an electrode loop, when the myoelectricity of the area to be detected vibrates, myoelectricity signals can be generated, the monitoring electrode collects the myoelectricity signals and transmits the myoelectricity signals to the nerve monitor through an electrode wire for data processing, and then the electromyogram is recorded and an alarm is given in real time. Helping surgeons locate and identify nerves at risk within the surgical field, thereby protecting the nerves from damage during the procedure.

The prior art has the following defects: 1. when the existing nerve monitoring device is used, a monitoring electrode is connected to a nerve monitor through a large number of electrode wires, and the redundant electrode wires influence the walking or operation of medical personnel; 2. the monitoring electrode transmits the electromyographic signals to the nerve monitor through the electrode wire, and the electromyographic signals are easily interfered by noise in the transmission process to influence the accuracy and the stability of the signals; 3. the monitoring electrode needs to be matched with a nerve monitor for use, the space of an operating room is small, and the space needs to be specially arranged for the nerve monitor to be placed.

In addition, the probe needle part of the nerve probe needle on the market at present is fixed, and is unable flexible, and the surgeon does not control the use dynamics well in the use, and too hard can cause the injury to patient's nerve or tissue when surveying nerve, and too little then can't ensure the reliable contact of nerve probe and tissue and output stable stimulation current when surveying nerve to influence the judgement of surgeon to neural location and discernment. 2. For particularly fragile tissues, such as cranial nerves, the nerve is still damaged due to too much action even if a probe needle (such as 201810863181.9) with a contractible spring structure is used, so that irrecoverable medical accidents are caused, and no good solution is provided for the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of numerous connecting wires and large volume of the existing nerve monitoring system, and designing a nerve monitoring device which can be directly placed on the operating bed for use and is convenient for the medical care personnel to handle.

The technical scheme of the utility model is that:

a nerve monitoring system comprises a flexible nerve probe needle and a nerve monitoring device, wherein the flexible nerve probe needle generates stimulation current, the nerve monitoring device collects myoelectric signals generated after nerve stimulation through a signal collecting electrode, the nerve monitoring device is characterized by comprising a monitoring main body module 2 and a signal collecting electrode 5, the monitoring main body module 2 mainly comprises a filter circuit, an amplifying circuit and a control module, the control module is connected with a display module and an alarm module, the signal collecting electrode 5 sends the collected myoelectric signals into the filter circuit, the myoelectric signals are processed by the amplifying circuit and then sent into the control module, and the display module displays and alarms; the monitoring body module 2 is arranged in a host machine 9, a signal acquisition electrode 5 is electrically connected with the monitoring body module 2, a power supply module for working of each module is also arranged in the host machine 9 and is controlled by a power supply switch 1 on the host machine, an operation prompting lamp 3, an alarm prompting lamp 4, a display screen 6 and a buzzer 8 are also arranged on the host machine, and the operation prompting lamp 3 is electrically connected with the power supply module and is used for prompting the contact state of the signal acquisition electrode and a human body; the alarm prompt lamp 4 and the buzzer 8 are electrically connected with an alarm module in the monitoring main body module 2, and the display screen 6 is electrically connected with a display module in the monitoring main body module 2; the flexible nerve probe comprises a handle 14, a lead 16 and a probe 11, wherein the handle 14 is used for being grasped by a doctor and is used as a mounting carrier of the probe, the lead and a control component; the lead 16 is used for leading the stimulating current of the power supply module into the probe, and the other end of the lead is electrically connected with the probe; the probe 11 is arranged on the handle 14 and is used for contacting with the nerve of the human body, sending the current of the power supply module 17 into the nerve of the human body, generating a myoelectric signal after the nerve is stimulated, sending the myoelectric signal into the nerve monitoring device through the signal acquisition electrode 5, and displaying the myoelectric signal after being processed by the nerve monitoring device; the probe 1 is composed of at least one high-conductivity silicon rubber wire.

The signal collecting electrode 5 is connected with the monitoring main body module 2 in a wired or wireless mode, when the wireless mode is adopted, the signal collecting electrode 5 is provided with a wireless transmitting module, a wireless signal receiving module is installed in the corresponding monitoring main body module 2, and the output end of the wireless signal receiving module is connected with the input end of the filter circuit.

The power switch 1 is a button switch or a key switch, and the operation prompt lamp 3 and the alarm prompt lamp 4 are L ED display lamps.

The display screen 6 with the signal acquisition electrode 5 in a contact pin type or patch type structure is a touch type, liquid crystal type or L ED type display screen, the host machine 9 is also provided with a key 7 for adjusting the alarm volume, and the key 7 is in a key type, knob type or slide block type structure.

The probe 11 constitute by many highly conductive silicon rubber silk of a row of many or multirow, many or the many highly conductive silicon rubber silk of a row probe 11 and the one end surface cover that the handle 14 links to each other insulating layer 12 is equipped with, the other end exposes outside the insulating layer so that the nerve contacts.

The probe 11 is of a bundle structure formed by a plurality of high-conductivity silicone rubber wires, an insulating layer 12 is sleeved on the surface of one end, connected with the handle 14, of the bundle high-conductivity silicone rubber wire probe 11, and the other end of the bundle high-conductivity silicone rubber wire probe is exposed out of the insulating layer so as to facilitate nerve contact.

The diameter of the high-conductivity silicon rubber wire is 0.01-1 mm.

The handle 14 in install current regulation module, be equipped with current regulation switch 15 on the handle 14, the output and the probe electrical connection of current module.

The handle 14 is provided with a current display module, and the handle 14 is provided with a current display screen.

The utility model has the advantages that:

1. the utility model discloses retrench the nerve guardianship device to a simple and easy nerve guardianship module, at the operation in-process, do not need the connection of electrode line, avoid influencing medical personnel's walking or operation.

2. In the operation process, the electromyographic signals are collected by the electrodes without being transmitted through electrode wires, the modules directly process the electromyographic signals and display the electromyographic signals on a display screen, the signals are prevented from being interfered by noise in the transmission process, and the signals are more accurate and stable.

3. The nerve monitoring device is a simple and small module, occupies small area, does not influence the operation space, and is convenient and rapid to use.

4. The probe end of the flexible probe is designed into a structure similar to a brush, when a surgeon uses the flexible probe, when the probe is in contact with fragile nerves or tissues, the wire electrode at the probe end can be stressed and bent (through testing, the wire electrode can deform when being stressed by 0.1N, the damage of the probe to the nerves or the tissues is reduced to the minimum), at the moment, the surgeon holds the probe to sweep in an area to be detected by hand, when the wire electrode is in contact with the nerves, the nerve stimulation causes myoelectric signals, and the monitor catches the myoelectric signals through the sensor, so that the surgeon is helped to locate and identify the nerves.

5. Because of the individual difference, the nerve stimulation current value required in the operation of each patient is different, and the surgeon is required to continuously adjust the nerve stimulation current value in the operation, and the current adjusting piece is arranged on the handle, so that the surgeon can automatically, quickly, conveniently and accurately adjust the nerve stimulation current value according to the requirement in the operation.

6. The utility model discloses creatively with electrically conductive silica gel use neural the surveying in, solved flexible and electrically conductive difficult problem, can guarantee good flexibility, can guarantee good electric conductive property again.

7. The utility model discloses simple structure, it is convenient to make. By adjusting the formula of the silica gel, probes with different flexibilities can be manufactured, and the probe can be used for detecting fragile nerves and common nerves.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an electrical schematic block diagram of the monitoring subject module of the present invention.

Fig. 3 is an electrical schematic diagram of the filter circuit of the present invention.

Fig. 4 is an electrical schematic diagram of the amplifier circuit of the present invention.

Fig. 5 is a schematic structural diagram of the flexible probe according to the present invention.

Fig. 6 is a partially enlarged schematic view of fig. 5.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1-6.

A nerve monitoring system comprises a flexible nerve detection needle and a nerve monitoring device, wherein the flexible nerve detection needle is shown in figures 5 and 6, the nerve monitoring device is shown in figure 1 and generates stimulation current, the nerve monitoring device collects myoelectric signals generated after nerve stimulation through a signal collection electrode, the nerve monitoring device comprises a monitoring main body module 2 and a signal collection electrode 5, the monitoring main body module 2 mainly comprises a filter circuit, an amplification circuit and a control module, the control module is connected with a display module and an alarm module, the signal collection electrode 5 sends collected myoelectric signals to the filter circuit and sends the myoelectric signals to the control module after being processed by the amplification circuit and displays and alarms through the display module, the monitoring main body module 2 is installed in a host computer 9, the signal collection electrode 5 is electrically connected with the monitoring main body module 2, a power supply module for working of each module is installed in the host computer 9, the power supply module is controlled by a power supply switch 1 on the host computer, the host computer is also provided with an operation prompting lamp 3, an alarm prompting lamp 4 and a display screen 6, a buzzer 8, the alarm lamp 3 is operated, the power supply module is electrically connected with a power supply module, the handle is connected with a high-operated by a silicon rubber wire, the handle, the monitor wire is connected with a high-operated electrical signal collection electrode, the monitor wire, the handle, the monitor wire is connected with a high-operated electrical signal collection module, the monitor wire-operated electrical signal collection module is connected with a monitor wire-operated electrical signal collection module, the monitor wire is connected with a monitor wire, the monitor wire is connected with a monitor wire, the monitor wire is connected with a monitor wire, the monitor wire is connected with the monitor wire, the monitor wire is connected with the monitor wire, the wire is connected with the wire, the wire is connected with the wire, the wire is connected with the wire, the wire.

The electrical schematic diagram of the monitoring main body module 2 of the present invention is shown in fig. 2, the electrical schematic diagram of the filtering module is shown in fig. 3, and the electrical schematic diagram of the signal amplifying module is shown in fig. 4, which can be designed and manufactured by referring to the relevant manual or textbook during the specific implementation. The myoelectric signals collected by the signal collecting electrode 5 pass through precision resistors R1, C1 and C2 to be subjected to RC filtering, then enter a next-stage signal amplification module, are amplified by an operational amplifier and then output to an AD conversion chip for processing, and 12 pins of the AD chip output signals to a CPU for data processing.

The utility model discloses a theory of operation is:

the utility model is used for the medical field, in the operation, the operator need carry out neural guardianship to the operation patient usually, prevents to cause nervous damage in the operation, the utility model relates to a be used for neural guardianship device. The specific working principle is as follows:

referring to fig. 1, the present invention relates to a nerve monitoring device.

Firstly, a power switch 1 of the device is turned on, and after a running prompting lamp 3 is normally on, the electrode is inserted into the tissue of the area to be detected and fixed, so that the electrode is prevented from falling off in the operation process. If the connection of current electrode and tissue is intact, then operation warning light 3 continues to be bright normally, if the connection of current electrode and tissue is wrong, then operation warning light 3 can glimmer, at this moment, the adjustment electrode position, until operation warning light 3 resumes to be bright normally.

And then, the flexible nerve probe is used for scanning the area to be detected, when the nerve probe touches nerves, nerve stimulation causes myoelectric signals, the monitoring main body module 2 catches the myoelectric signals through the signal acquisition electrode 5, the myoelectric signals are processed through an internal circuit and displayed through a display screen, an alarm is given through a buzzer 8, and a surgeon is assisted to confirm the nerve position, so that nerve protection is performed.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. A nerve monitoring system comprises a flexible nerve probe needle and a nerve monitoring device, wherein the flexible nerve probe needle generates stimulation current, the nerve monitoring device collects myoelectric signals generated after nerve stimulation through a signal collecting electrode, the nerve monitoring system is characterized by comprising a monitoring main body module (2) and a signal collecting electrode (5), the monitoring main body module (2) mainly comprises a filter circuit, an amplifying circuit and a control module, the control module is connected with a display module and an alarm module, the signal collecting electrode (5) sends the collected myoelectric signals into the filter circuit, the myoelectric signals are processed by the amplifying circuit and then sent into the control module, and the display module displays and alarms; the monitoring system is characterized in that the monitoring main body module (2) is arranged in a host (9), the signal acquisition electrode (5) is electrically connected with the monitoring main body module (2), a power supply module for working of each module is also arranged in the host (9), the power supply module is controlled by a power switch (1) on the host, an operation prompting lamp (3), an alarm prompting lamp (4), a display screen (6) and a buzzer (8) are also arranged on the host, and the operation prompting lamp (3) is electrically connected with the power supply module and used for prompting the contact state of the signal acquisition electrode and a human body; the alarm prompt lamp (4) and the buzzer (8) are electrically connected with an alarm module in the monitoring main body module (2), and the display screen (6) is electrically connected with a display module in the monitoring main body module (2); the flexible nerve probe needle comprises a handle (14), a lead (16) and a probe (11), wherein the handle (14) is used for a doctor to grasp and is used as an installation carrier of the probe, the lead and a control component; the lead (16) is used for introducing the stimulating current of the power supply module into the probe, and the other end of the lead is electrically connected with the probe; the probe (11) is arranged on the handle (14) and is used for contacting with the nerve of the human body, the current of the power supply module (17) is sent into the nerve of the human body, the nerve is stimulated to generate a myoelectric signal, the myoelectric signal is sent into the nerve monitoring device through the signal acquisition electrode (5), and the myoelectric signal is displayed after being processed by the nerve monitoring device; the probe (11) is composed of at least one high-conductivity silicon rubber wire.

2. The nerve monitoring system as claimed in claim 1, wherein the signal collecting electrode (5) is connected with the monitoring body module (2) in a wired or wireless manner, when the monitoring body module (2) is in a wireless manner, the signal collecting electrode (5) is provided with a wireless transmitting module, a wireless signal receiving module is installed in the corresponding monitoring body module (2), and the output end of the wireless signal receiving module is connected with the input end of the filter circuit.

3. The nerve monitoring system as claimed in claim 1, wherein the power switch (1) is a button switch or a key switch, and the operation prompt lamp (3) and the alarm prompt lamp (4) are L ED display lamps.

4. The nerve monitoring system as claimed in claim 1, wherein the signal collecting electrode (5) is of a pin-type or patch-type structure, the display screen (6) is of a touch type, a liquid crystal type or an L ED type, the host (9) is further provided with a key (7) for adjusting alarm volume, and the key (7) is of a key-type, knob-type or slider-type structure.

5. The nerve monitoring system as claimed in claim 1, wherein the probe (11) is composed of one or more rows of multiple highly conductive silicone rubber wires, the surface of one end of the one or more rows of multiple highly conductive silicone rubber wire probes (11) connected with the handle (14) is sleeved with an insulating layer (12), and the other end is exposed out of the insulating layer to facilitate nerve contact.

6. The nerve monitoring system as claimed in claim 1, wherein the probe (11) is a bundle structure composed of a plurality of highly conductive silicone rubber wires, an insulating layer (12) is sleeved on the surface of one end of the bundle highly conductive silicone rubber wire probe (11) connected with the handle (14), and the other end is exposed out of the insulating layer so as to facilitate nerve contact.

7. The nerve monitoring system of claim 1, wherein the diameter of the highly conductive silicone rubber wire is 0.01-1 mm.

8. The nerve monitoring system as claimed in claim 1, wherein a current regulating module is installed in the handle (14), a current regulating switch (15) is provided on the handle (14), and an output end of the current regulating module is electrically connected with the probe.

9. The nerve monitoring system as claimed in claim 1, wherein a current display module is installed in the handle (14), and a current display screen is provided on the handle (14).