Monitoring equipment with noise shielding function

Abstract

The utility model discloses monitoring equipment with a noise shielding function. The monitoring equipment comprises an electrotome host, a Hall sensor, an electrotome and a nerve monitoring module, the electrotome host is connected with the electrotome through a wire, the wire is close to or penetrates through the Hall sensor, and the Hall sensor can obtain current signals flowing through the wire; the nerve monitoring module is wirelessly connected with the Hall sensor, the nerve monitoring module can receive the current signal, and the nerve monitoring module can shield an electrotome excitation signal. Through the arrangement, information transmission between the Hall sensor and the nerve monitoring module is completed in a wireless connection mode, the requirement for electric wires for current detection is reduced, and wiring between devices is more simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of recurrent laryngeal nerve monitoring equipment, in particular to a monitoring equipment with a noise shielding function. Background Art

[0002] During thyroid surgery, the recurrent laryngeal nerve is a tissue that is susceptible to surgical injury. Damage to the recurrent laryngeal nerve can cause hoarseness and difficulty breathing. The recurrent laryngeal nerve is connected to the vagus nerve, and damage anywhere along the nerve pathway can lead to nerve damage or loss. Therefore, intraoperative testing of the recurrent laryngeal nerve and parathyroid glands is crucial. By testing the functional integrity of the recurrent laryngeal nerve during surgery, surgeons can promptly detect nerve damage and take appropriate measures. Currently, there are devices on the market specifically designed for recurrent laryngeal nerve monitoring. Typically, recurrent laryngeal nerve detectors use electrical stimulation to stimulate the nerve and utilize the electromyographic signals generated by the muscles innervated by the nerve to detect the integrity of the nerve's function. This testing method is currently well-established and widely used throughout the thyroid surgery market. Because this solution requires real-time monitoring of the signals of the human vocal cord muscles, the amplitude of the effective signal usually ranges from 100-1000uV, so it is very sensitive to noise. When energy devices such as electric knives are used during surgery, high-intensity currents will flow through the body, generating high-intensity currents at the vocal cords. After being converted into voltage, the recurrent laryngeal nerve detector will detect a large number of false signals, which will cause clinical misjudgments.

[0003] To address the interference issue with electrocautery during thyroid surgery, a silent clip accessory has been developed to detect whether the electrocautery is in an energized state. This function utilizes the Hall effect: when a high current flows through a conductor, an electromagnetic field is generated. This magnetic field is sensed by the Hall sensor, which then detects the corresponding conductor current. If the current from the energy device exceeds a certain threshold, the system disconnects the current and ceases EMG signal acquisition, thereby shielding against interference signals.

[0004] However, current technical solutions all rely on wired devices, requiring sensors to be connected to a host computer in the operating room. This will further increase the number of wires required in an operating room with complex equipment, causing significant inconvenience to clinical operations. Utility Model Content

[0005] The purpose of the utility model is to provide a monitoring device with a noise shielding function, so as to solve the problem of complicated circuits of current noise shielding devices in the prior art.

[0006] (2) Technical solution

[0007] In order to solve the above problems, the first aspect of the present invention provides a monitoring device with a noise shielding function, the monitoring device comprising: an electric knife host, a Hall sensor, an electric knife and a nerve monitoring module;

[0008] The electrosurgical unit and the electrosurgical unit are connected via a wire, the wire being close to or passing through the Hall sensor, and the Hall sensor being capable of acquiring a current signal flowing through the wire;

[0009] The nerve monitoring module is wirelessly connected to the Hall sensor, the nerve monitoring module can receive the current signal, and the nerve monitoring module can shield the signal excited by the electric knife.

[0010] Preferably, the Hall sensor includes a Hall element, a calculation module and a wireless communication module, the Hall element is connected to the calculation module, and the calculation module is connected to the wireless communication module;

[0011] The wire is close to or passes through the Hall element, and the wireless communication module is wirelessly connected to the nerve monitoring module.

[0012] Preferably, the Hall sensor further includes a power supply module, the Hall element is connected to the power supply module, the power supply module is connected to the calculation module, and the power supply module is connected to the wireless communication module.

[0013] Preferably, the nerve monitoring module includes a nerve monitor host and a stimulation handle, the nerve monitor host and the stimulation handle are connected, and the nerve monitor host and the wireless communication module are wirelessly connected.

[0014] Preferably, the nerve monitoring module further includes an interface box, and the interface box is connected to the nerve monitor host.

[0015] Preferably, the wire is arranged outside the Hall sensor, and the wire is close to the Hall element.

[0016] Preferably, the Hall sensor is provided with a wire inlet and a wire outlet, the wire inlet and the wire outlet are arranged on the same side of the Hall element, and the wires pass through the wire inlet and the wire outlet in sequence.

[0017] Preferably, the line inlet and the line outlet are arranged on both sides of the Hall element, and the wires pass through the line inlet and the line outlet in sequence.

[0018] Preferably, the Hall sensor is provided with a backup charging port, and the backup charging port is connected to the power supply module.

[0019] Preferably, a channel is provided in the Hall sensor, a first end of the channel is connected to the line inlet, and a second end of the channel is connected to the line outlet.

[0020] The present invention sets a Hall sensor on the energized wire of the electrosurgical knife. The Hall sensor obtains the current value on the wire through electromagnetic induction and sends the current value wirelessly to the nerve monitoring module. The nerve monitoring module compares the current value with a specific threshold value and controls the signal acquisition channel to open or close according to the comparison result to achieve shielding of interference signals. Through this setting, information transmission is completed between the Hall sensor and the nerve monitoring module through a wireless connection, which reduces the need for wires for current detection and simplifies the wiring between devices. On the other hand, the present invention uses the current generated by the electromagnetic induction of the Hall sensor to charge the power supply device inside the Hall sensor. Through this setting, the Hall sensor does not need to be connected to a power source during use, can work for a long time, and improves clinical convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a connection diagram of a monitoring device according to one embodiment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of a Hall sensor according to one embodiment of the present utility model;

[0023] Reference numerals:

[0024] 1. Electrosurgical unit; 2. Hall effect sensor; 3. Electrosurgical unit; 4. Neurosurgical unit; 5. Interface box; 6. Stimulation handle; 7. Operating table; 8. Hall effect element; 9. Power supply module; 10. Calculation module; 11. Wireless communication module; 12. Wires. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0026] The technical solution of the present invention is described in detail below with reference to the accompanying drawings. One embodiment of the present invention provides a monitoring device with a noise shielding function, such as Figure 1 and Figure 2 As shown, Figure 1 This is a diagram showing the connection of monitoring equipment according to an embodiment. Figure 2This is a schematic diagram of the Hall sensor 2 structure. The monitoring device includes: an electrosurgical unit 1, a Hall sensor 2, an electrosurgical unit 3, and a nerve monitoring module. The electrosurgical unit 1 and the electrosurgical unit 3 are connected by a wire 12, which approaches or passes through the Hall sensor 2. The Hall sensor 2 can detect the current signal flowing through the wire 12. The nerve monitoring module is wirelessly connected to the Hall sensor 2, receiving the current signal and shielding the signal generated by the electrosurgical unit 3. With this setup, the Hall sensor 2 detects the current signal from the wire 12, and the nerve monitoring module is wirelessly connected to the Hall sensor 2. The nerve monitoring module receives the current signal and controls the opening and closing of the signal acquisition channel based on the current signal. Specifically, during operation of the monitoring device, the nerve monitoring module forms a current loop with the human body. When the electrosurgical unit 3 stimulates the human body, it generates a signal. The nerve monitoring module collects the generated signal and uses it to determine the integrity of nerve function. If the current in the electrosurgical unit 3 is too high, the generated signal will be interfered with, affecting the acquired results. In this case, the nerve monitoring module needs to disconnect the acquisition channel for the generated signal. In the present invention, the Hall sensor 2 transmits the current value in the wire 12 to the nerve monitoring module wirelessly. The nerve monitoring module makes a judgment based on the current current value and a specific threshold value. If the current current value is greater than the specific threshold value, it is judged that the current current value will affect the excitation signal. The nerve monitoring module disconnects the acquisition channel, thereby shielding the interference signal.

[0027] There is no restriction on the size of the specific threshold here, as long as it can meet the requirements of collecting effective excitation signals while shielding interference signals. There is no restriction on the collection method of the nerve monitoring module, including but not limited to the connection method or location between the nerve monitoring module and the human body, the positional relationship between the collection channel and the electrosurgical knife 3, as long as it can meet the requirements of real-time collection of the excitation signal of the electrosurgical knife 3. There is no restriction on the method of disconnecting the collection channel of the nerve monitoring module, which can be to disconnect the stimulation current from entering the human body, disconnect the stimulation current from returning to the nerve monitoring module, or other methods that can meet the requirements of disconnecting the collection channel.

[0028] Combine Figure 2In a preferred embodiment, the Hall sensor 2 includes a Hall element 8, a computing module 10, and a wireless communication module 11. The Hall element 8 is connected to the computing module 10, which is then connected to the wireless communication module 11. The wire 12 is close to or passes through the Hall element 8, and the wireless communication module 11 is wirelessly connected to the nerve monitoring module. Through this configuration, the Hall element 8 electromagnetically senses the current in the wire 12, and the Hall element 8 transmits the electromagnetic induction result to the computing module 10. The computing module 10 processes the electromagnetic induction result and calculates the current value and other current signals. The computing module 10 transmits the current signal to the wireless communication module 11, and the wireless communication module 11 transmits the current signal to the nerve monitoring module wirelessly. The specific structure of the Hall sensor 2 is not defined here, and the specific installation and connection methods of the Hall element 8, computing module 10, and wireless communication module 11 are not limited. It is sufficient that the current signal in the wire 12 is sensed and calculated and fed back to the nerve monitoring module via wireless transmission.

[0029] In a preferred case, the Hall sensor 2 also includes a power supply module 9, the Hall element 8 is connected to the power supply module 9, the power supply module 9 is connected to the operation module 10, and the power supply module 9 is connected to the wireless communication module 11. Specifically, when current passes through the wire 12, the electromagnetic induction between the Hall element 8 and the wire 12 will produce a change in the magnetic field, and a current will be formed through the change in the magnetic field. The Hall element 8 transmits the current to the power supply module 9, and the power supply module 9 supplies power to the operation module 10 and the wireless communication module 11. Through such a setting, the Hall sensor 2 does not need to be connected to a power supply during use, and can work for a long time, thereby improving clinical convenience. In an optional case, the Hall sensor 2 is provided with a spare charging port, and the spare charging port is connected to the power supply module 9. When the Hall sensor 2 is not in operation, it can be charged through the spare charging port, or when the Hall sensor 2 needs to be used for a long time, ensure that the power supply module 9 has sufficient power.

[0030] Combine Figure 1 and Figure 2The neurological monitoring module includes a neurological monitor host 4 and a stimulation handle 6, the neurological monitor host 4 is connected to the stimulation handle 6, and the neurological monitor host 4 is wirelessly connected to the wireless communication module 11. Preferably, the neurological monitoring module also includes an interface box 5, and the interface box 5 is connected to the neurological monitor host 4. The neurological monitor host 4 sends a stimulation current through the stimulation handle 6, and after the stimulation current passes through the human body on the operating table 7, it returns to the neurological monitor host 4 along the interface box 5 to form a current loop. It should be noted that the wiring position between the interface box 5 and the human body is close to the contact position between the electric knife 3 and the human body. Through such a setting, when the current in the electric knife 3 stimulates the human body, the neurological monitoring module can collect the excitation signal of the contact position. In a preferred case, the wireless communication module 11 and the operation module 10 are bidirectionally connected. Through such a setting, the neurological monitor host 4 can control the Hall sensor 2 to run or stop through wireless transmission. Specifically, when the excitation signal collected by the nerve monitoring module is in a stable state, and the current in the wire 12 is lower than a specific threshold for a long time, the nerve monitor host 4 can send an instruction to stop current signal detection to the wireless communication module 11 through wireless transmission, and the wireless communication module 11 transmits the instruction to the operation module 10, thereby stopping the operation of the Hall sensor 2; when the excitation signal collected by the nerve monitoring module fluctuates greatly, the current in the wire 12 changes significantly. At this time, the nerve monitor host 4 sends an instruction to start current signal detection to the wireless communication module 11, and the wireless communication module 11 transmits the instruction to the operation module 10, thereby starting the Hall sensor 2.

[0031] In one embodiment, the wire 12 is disposed outside the Hall sensor 2 and is close to the Hall element 8. The wire 12 can be fixed to the housing of the Hall sensor 2 or detachably mounted on the housing of the Hall sensor 2. Electromagnetic induction can be achieved simply by bringing the wire 12 close to the Hall element 8 to complete the detection of the current signal in the wire 12.

[0032] In another embodiment, the Hall sensor 2 is provided with a wire inlet and a wire outlet, and the wire 12 passes through the wire inlet and the wire outlet in sequence. With this arrangement, the wire 12 passes through the wire inlet and the wire outlet and through the Hall sensor 2, so that electromagnetic induction is generated between the Hall element 8 and the wire 12. In an optional case, the wire inlet and the wire outlet are arranged on the same side of the Hall element 8, in which case the wire 12 passes through the Hall sensor 2 and is located on one side of the same surface of the Hall element 8; in another optional case, the wire inlet and the wire outlet are arranged on both sides of the Hall element 8, in which case the wire 12 passes through the Hall element 8 to achieve electromagnetic induction. In a preferred case, a channel is provided in the Hall sensor 2, the first end of the channel is connected to the wire inlet, and the second end of the channel is connected to the wire outlet; with this arrangement, the position of the wire 12 inside the Hall sensor 2 is fixed, which is also convenient for the removal and replacement of the wire 12.

[0033] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A monitoring device with noise shielding function, characterized in that: The monitoring device comprises: an electric knife (3) host (1), a Hall sensor (2), an electric knife (3) and a nerve monitoring module; The electric knife (3) host (1) and the electric knife (3) are connected via a wire (12), the wire (12) is close to or passes through the Hall sensor (2), and the Hall sensor (2) is capable of acquiring a current signal flowing through the wire (12); The nerve monitoring module is wirelessly connected to the Hall sensor (2), the nerve monitoring module is capable of receiving the current signal, and the nerve monitoring module is capable of shielding the signal excited by the electric knife (3).

2. The monitoring device according to claim 1, characterized in that: The Hall sensor (2) comprises a Hall element (8), a calculation module (10) and a wireless communication module (11), wherein the Hall element (8) is connected to the calculation module (10), and the calculation module (10) is connected to the wireless communication module (11); The wire (12) is close to or passes through the Hall element (8), and the wireless communication module (11) is wirelessly connected to the nerve monitoring module.

3. The monitoring device according to claim 2, characterized in that: The Hall sensor (2) further includes a power supply module (9), the Hall element (8) is connected to the power supply module (9), the power supply module (9) is connected to the operation module (10), and the power supply module (9) is connected to the wireless communication module (11).

4. The monitoring device according to claim 3, characterized in that: The nerve monitoring module comprises a nerve monitor host (4) and a stimulation handle (6), wherein the nerve monitor host (4) and the stimulation handle (6) are connected, and the nerve monitor host (4) and the wireless communication module (11) are wirelessly connected.

5. The monitoring device according to claim 4, characterized in that: The nerve monitoring module further comprises an interface box (5), and the interface box (5) is connected to the nerve monitor host (4).

6. The monitoring device according to claim 2, characterized in that: The wire (12) is arranged outside the Hall sensor (2), and the wire (12) is close to the Hall element (8).

7. The monitoring device according to claim 3, characterized in that: The Hall sensor (2) is provided with a line inlet and a line outlet, the line inlet and the line outlet are arranged on the same side of the Hall element (8), and the wire (12) passes through the line inlet and the line outlet in sequence.

8. The monitoring device according to claim 7, characterized in that: The line inlet and the line outlet are arranged on both sides of the Hall element (8), and the wire (12) passes through the line inlet and the line outlet in sequence.

9. The monitoring device according to claim 8, characterized in that: The Hall sensor (2) is provided with a spare charging port, and the spare charging port is connected to the power supply module (9).

10. The monitoring device according to claim 9, characterized in that: A channel is provided in the Hall sensor (2), a first end of the channel is connected to the line inlet, and a second end of the channel is connected to the line outlet.

Images