A test nerve stimulator

Abstract

The utility model relates to a nerve stimulator for testing belongs to the technical field of medical devices, the utility model discloses a nerve stimulator for testing, for in the operation or the use before the formal implantation stimulator after operation. The nerve stimulation extension wire or nerve stimulation electrode is stretched into the opening, and the sliding locking slider fixes the nerve stimulation extension wire or nerve stimulation electrode to prevent the nerve stimulation extension wire or nerve stimulation electrode from falling off during work, and the nerve stimulator for testing can collect the signal of human body or send the nerve stimulation signal to human body. The nerve stimulator for testing of the embodiment can realize convenient reuse by pulling and inserting the nerve stimulation extension wire or nerve stimulation electrode, and the safety of connection is guaranteed through the connecting mechanism and locking slider.

Description

Technical Field

[0001] This utility model belongs to the field of implantable medical device technology, and in particular relates to a neurostimulator for testing. Background Technology

[0002] Implantable neurostimulators are medical devices surgically implanted into the body that use electrical pulses to modulate neural activity in order to treat diseases. Their core principle is to deliver electrical currents to specific neural tissues via electrodes, intervening in abnormal neural discharges or activating dormant neural pathways, thereby improving symptoms. For example, deep brain stimulation (DBS) modulates basal ganglia activity through implanted electrodes, alleviating tremors and rigidity symptoms in Parkinson's disease; spinal cord stimulation (SCS) blocks pain signal transmission by stimulating the dorsal columns of the spinal cord.

[0003] Implantable neurostimulators require surgical implantation into the human body and must remain there for an extended period. However, during or after surgery, before the implantable neurostimulator is actually implanted, a temporary experimental neurostimulator is needed to replace it. Utility Model Content

[0004] The technical problem to be solved by this invention is to provide a safe and reusable neurostimulator for testing, in order to overcome the shortcomings of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A test neurostimulator, comprising:

[0007] The stimulator body has a shell, an inner cavity containing a circuit board and a battery, the battery being used to power the circuit board, and an opening on the shell, with a connecting mechanism and a locking slider provided at the opening inside the shell.

[0008] A nerve stimulation extension wire or nerve stimulation electrode can extend into the connection mechanism from the opening;

[0009] The locking slider includes a sliding base plate, a protrusion on one side of the sliding base plate, and a locking block on the other side of the sliding base plate. The locking slider is disposed in a slide groove. When the sliding base plate slides in the slide groove, the locking block can move closer to or further away from the nerve stimulation extension wire or nerve stimulation electrode. When the locking block moves closer to the nerve stimulation extension wire or nerve stimulation electrode, it can abut against and fix the nerve stimulation extension wire or nerve stimulation electrode on the connecting mechanism.

[0010] Preferably, in the test nerve stimulator of this utility model, the locking blocks are arranged in rows of several.

[0011] Preferably, in the test neurostimulator of this utility model, the connecting mechanism includes a guide block near the opening, a connecting block into which a metal spring extends, and a fixing block that fixes the guide block and the connecting block to the outer shell. The guide block has a first arc-shaped groove that matches the surface of the neurostimulation extension wire or the neurostimulation electrode. The connecting block has a through hole into which the neurostimulation extension wire or the neurostimulation electrode extends. The metal spring extends into the through hole. The fixing block is provided with a fixing lug for screw engagement. The metal spring is also mounted on the circuit board and is used to make contact and electrical connection with the contacts on the neurostimulation extension wire or the neurostimulation electrode, thereby transmitting signals.

[0012] Preferably, in the test nerve stimulator of this invention, one side of the locking block has a second arc-shaped groove that matches the surface of the nerve stimulation extension wire or the nerve stimulation electrode.

[0013] Preferably, in the test nerve stimulator of this invention, the slide is inclined toward the side closer to the connecting mechanism, and when the locking slider slides along the slide, the locking slider can move closer to or away from the connecting mechanism.

[0014] Preferably, the test nerve stimulator of this utility model includes an upper shell and a lower shell, which are fastened together by snaps. When sealing is required, a sealing strip can be used between them, forming a receiving cavity between the upper shell and the lower shell.

[0015] Preferably, the test nerve stimulator of this utility model further includes a base, the base having a receiving groove, the stimulator body being able to be placed on the base, and the base being able to charge the battery inside the stimulator body.

[0016] Preferably, the nerve stimulator for testing of this utility model has an inclined bottom surface in the receiving groove, so that the stimulator body is also placed at an inclination.

[0017] Preferably, the nerve stimulator for testing according to this invention is a sacral nerve stimulator.

[0018] The beneficial effects of this utility model are:

[0019] This invention relates to a test neurostimulator for use during or after surgery, prior to the formal implantation of a stimulator. A neurostimulation extension lead or electrode is inserted into the opening, and a sliding locking slider secures the lead or electrode to prevent it from dislodging during operation. The test neurostimulator can collect signals from the human body or emit neurostimulation signals. This embodiment of the test neurostimulator allows for convenient reuse by inserting and removing the neurostimulation extension lead or electrode, and the connection security is ensured by the connecting mechanism and locking slider. Attached Figure Description

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of a test nerve stimulator according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the base structure according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the stimulator body after the upper shell is hidden in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the connecting mechanism and locking slider according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection mechanism according to an embodiment of the present utility model;

[0026] Figure 6 This is a functional module diagram of the circuit board in an embodiment of this utility model.

[0027] The attached figures are labeled as follows:

[0028] 1. Base;

[0029] 2. Stimulator body;

[0030] 3. Nerve stimulation electrodes;

[0031] 10. First indicator light;

[0032] 11. Receiving tank;

[0033] 12 power connectors;

[0034] 20 Second indicator light;

[0035] 21 buttons;

[0036] 22. Lock the slider;

[0037] 23 batteries;

[0038] 24. Circuit boards;

[0039] 25. Connecting mechanism;

[0040] 26 Slides

[0041] 27 Opening

[0042] 201 Upper shell

[0043] 202 Lower housing;

[0044] 221 bumps;

[0045] 222 Sliding base plate;

[0046] 223 Locked block;

[0047] 241 Metal shrapnel;

[0048] 251 Guide block;

[0049] 252 Connector Block;

[0050] 253 Fixed block. Detailed Implementation

[0051] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0052] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0053] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] The technical solution of this utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0055] Example

[0056] This embodiment provides a test nerve stimulator, which can be a sacral nerve stimulator or other nerve stimulators, such as... Figure 1-5 As shown, it includes:

[0057] The stimulator body 2 has a shell, and the shell has an internal cavity. The internal cavity contains a circuit board 24 and a battery 23. The battery 23 is used to power the circuit board 24. The shell has an opening 27, and a connecting mechanism 25 and a locking slider 22 are provided at the opening inside the shell.

[0058] The nerve stimulation extension wire or nerve stimulation electrode 3 can extend into the connection mechanism 25 from the opening 27;

[0059] The locking slider 22 includes a sliding base plate 222, a protrusion 221 disposed on one side of the sliding base plate 222, and a locking block 223 disposed on the other side of the sliding base plate 222. The locking slider 22 is disposed in a slide groove 26. When the sliding base plate 222 slides in the slide groove 26, the locking block 223 can move closer to or further away from the nerve stimulation extension wire or nerve stimulation electrode 3. When the locking block 223 is close to the nerve stimulation extension wire or nerve stimulation electrode 3, it can abut against and fix the nerve stimulation extension wire or nerve stimulation electrode 3 on the connecting mechanism 25 (that is, to prevent the nerve stimulation extension wire or nerve stimulation electrode 3 from being removed by friction).

[0060] The test neurostimulator of this embodiment is for use during or after surgery before formal implantation of the stimulator. The neurostimulation extension lead or neurostimulation electrode 3 is inserted into the opening 27, and the sliding locking slider 22 secures the neurostimulation extension lead or neurostimulation electrode 3 to prevent it from dislodging during operation. The test neurostimulator can collect signals from the human body or emit neurostimulation signals to the human body. The test neurostimulator of this embodiment can be easily reused by inserting and removing the neurostimulation extension lead or neurostimulation electrode 3, and the connection security is ensured by the connecting mechanism 25 and the locking slider 22.

[0061] The neurostimulator in this embodiment can collect signals using a neurostimulation extension wire. After the stimulator body 2 collects data, it needs to transmit the collected data to other processing devices via a wireless communication module. Alternatively, it can emit stimulation signals using neurostimulation electrodes. The stimulation signal emitted by the stimulator body 2 travels through the neurostimulation electrodes to the human body.

[0062] Furthermore, the locking blocks 223 are arranged in rows of several, such as... Figure 4 There are three.

[0063] Furthermore, the connection mechanism 25 includes a guide block 251 near the opening, a connecting block 252 into which the metal spring 241 extends, and a fixing block 253 that fixes the guide block 251 and the connecting block 252 to the outer casing. The guide block 251 has a first arc-shaped groove that matches the surface of the nerve stimulation extension wire or the nerve stimulation electrode 3. The connecting block 252 has a through hole into which the nerve stimulation extension wire or the nerve stimulation electrode 3 extends. The metal spring 241 extends into the through hole. The fixing block 253 is provided with a fixing lug for screw engagement. The metal spring 241 is also mounted on the circuit board 24. The metal spring 241 is used to make contact and electrical connection with the contacts on the nerve stimulation extension wire or the nerve stimulation electrode 3 to transmit signals. The signals here can be human electrical signal data or stimulation signals.

[0064] Furthermore, one side of the locking block 223 has a second arc-shaped groove that matches the surface of the nerve stimulation extension wire or nerve stimulation electrode 3. The first arc-shaped groove and the second arc-shaped groove together form a fixing space for the nerve stimulation extension wire or nerve stimulation electrode 3.

[0065] Furthermore, the slide groove 26 is inclined toward the side closer to the connecting mechanism 25, and when the locking slider 22 slides along the slide groove 26, the locking slider 22 can move closer to or away from the connecting mechanism 25.

[0066] Furthermore, the stimulator body 2 includes an upper housing 201 and a lower housing 202, which are fastened together by snaps. When sealing is required, a sealing strip can also be used between them, forming a receiving cavity between the upper housing 201 and the lower housing 202.

[0067] The surface of the housing of the stimulator body 2 is provided with a button 21, which is used to start the stimulator body 2 and to set the stimulator parameters.

[0068] Furthermore, it also includes a base 1, which has a receiving groove 11, on which the stimulator body 2 can be placed. The base 1 can charge the battery 23 inside the stimulator body 2. The battery 23 is a rechargeable lithium battery.

[0069] Furthermore, the receiving slot 11 has an inclined bottom surface, so that the stimulator body 2 is also placed at an incline, which is convenient for the user to operate. The side wall of the base 1 is provided with a first indicator light 10 and a power interface 12 (such as using a USB Type-C interface). The base 1 is provided with a wireless charging coil to charge the stimulator body 2. Of course, the interface can also be used to connect the stimulator body 2 for wired charging, as long as the stimulator body 2 has the corresponding function.

[0070] The first indicator light 10 has a green light and a blue light, and the status of the light indicates the status of the base 1.

[0071]

[0072] The stimulator body 2 has a second indicator light 20 on its outer shell. The second indicator light 20 has a green light and a blue light, and the status of the light indicates the status of the stimulator body 2.

[0073]

[0074] like Figure 6 As shown, the circuit board of the stimulator body 2 has the following functional modules, including:

[0075] Wireless communication module (Bluetooth): Receives and responds to control commands from the external programmable charger, and sends the signals collected by the signal acquisition module to the external programmable charger.

[0076] Central control module: responsible for system scheduling and managing the charging and discharging of the device; processing the data received by the wireless communication module and converting the instruction content into a parameter sequence; receiving the bioelectric signals recorded by the signal acquisition module and transmitting them to the external programmable charger through the wireless communication module; the central control module integrates a memory (ROM and RAM) for storing data.

[0077] Stimulation output module: Receives instructions from the central control module and outputs stimulation pulses according to the set stimulation parameters.

[0078] Power management module: Monitors stimulator temperature, battery voltage and charging current, and provides overcurrent, overvoltage and overtemperature protection. It is responsible for power supply charging and discharging management.

[0079] Signal acquisition module: responsible for acquiring bioelectrical signals;

[0080] Battery: Rechargeable lithium battery, located inside the stimulator body 2.

[0081] The software used in the modules of the circuit board of this utility model is all existing, and this utility model does not involve any improvement to the software.

[0082] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A neurostimulator for testing, characterized in that, include: The stimulator body (2) has a shell, and the shell has a receiving cavity inside. A circuit board (24) and a battery (23) are disposed inside the receiving cavity. The battery (23) is used to power the circuit board (24). The shell has an opening (27), and a connecting mechanism (25) and a locking slider (22) are disposed at the opening inside the shell. The nerve stimulation extension wire or nerve stimulation electrode (3) can extend from the opening (27) and enter the connection mechanism (25); The locking slider (22) includes a sliding base plate (222), a protrusion (221) disposed on one side of the sliding base plate (222), and a locking block (223) disposed on the other side of the sliding base plate (222). The locking slider (22) is disposed in a slide groove (26). When the sliding base plate (222) slides in the slide groove (26), the locking block (223) can move closer to or further away from the nerve stimulation extension wire or nerve stimulation electrode (3). When the locking block (223) moves closer to the nerve stimulation extension wire or nerve stimulation electrode (3), it can abut against and fix the nerve stimulation extension wire or nerve stimulation electrode (3) on the connecting mechanism (25).

2. The test nerve stimulator according to claim 1, characterized in that, Furthermore, the locking blocks (223) are arranged in rows of several.

3. The test nerve stimulator according to claim 1, characterized in that, The connecting mechanism (25) includes a guide block (251) near the opening, a connecting block (252) into which a metal spring (241) extends, and a fixing block (253) that fixes the guide block (251) and the connecting block (252) to the housing. The guide block (251) has a first arc-shaped groove that matches the surface of the nerve stimulation extension wire or the nerve stimulation electrode (3). The connecting block (252) has a through hole into which the nerve stimulation extension wire or the nerve stimulation electrode (3) extends. The metal spring (241) extends into the through hole. The fixing block (253) is provided with a fixing lug for screw engagement. The metal spring (241) is also mounted on the circuit board (24). The metal spring (241) is used to make contact and electrical connection with the contacts on the nerve stimulation extension wire or the nerve stimulation electrode (3) to transmit signals.

4. The test nerve stimulator according to claim 1, characterized in that, The locking block (223) has a second arc-shaped groove on one side that matches the surface of the nerve stimulation extension wire or the nerve stimulation electrode (3).

5. The test nerve stimulator according to claim 1, characterized in that, The slide (26) is inclined toward the side closer to the connecting mechanism (25). When the locking slider (22) slides along the slide (26), the locking slider (22) can move closer to or away from the connecting mechanism (25).

6. The test nerve stimulator according to claim 1, characterized in that, The stimulator body (2) includes an upper shell (201) and a lower shell (202). The upper shell (201) and the lower shell (202) are fastened together by snaps. When sealing is required, a sealing strip can also be used between them to form a receiving cavity.

7. The test nerve stimulator according to claim 1, characterized in that, It also includes a base (1) having a receiving slot (11), on which the stimulator body (2) can be placed, and which can charge the battery (23) inside the stimulator body (2).

8. The test nerve stimulator according to claim 7, characterized in that, The receiving groove (11) has an inclined bottom surface, so that the stimulator body (2) is also placed at an inclination.

9. The test nerve stimulator according to any one of claims 1-8, characterized in that, The nerve stimulator used for the test is a sacral nerve stimulator.

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