A neural electrical stimulation system configurable with multiple implantable electrodes

Abstract

The present invention relates to a deep brain electrical stimulation system, and more particularly to a neural electrical stimulation system capable of being equipped with multiple electrodes, comprising a pulse generator, an extension wire, an electrode, and a fixing device, wherein the pulse generator is a multi-channel, multi-contact pulse generator, the extension wire is connected to the multi-channel, multi-contact pulse generator via contacts, the electrode is connected to the extension wire, and the fixing device is used to fix the electrode during use. The electrical stimulation system of the present invention can adjust the matching relationship between the number of pulse contacts and the number of electrodes according to the requirements of system precision, thereby achieving multi-channel, multi-pulse electrical stimulation output; the present invention also adjusts the structure of the extension wire so that, while the number of pulse contacts remains unchanged, more electrodes can be added as needed, thereby meeting the requirements of more complex electrode stimulation.

Description

Technical Field

[0001] The present invention relates to a deep brain electrical stimulation system, and in particular to a neural electrical stimulation system capable of being equipped with multiple electrodes. Background Art

[0002] Implantable neurostimulation therapy has been increasingly used clinically due to its effectiveness and reversibility in treating neurological diseases. Deep brain stimulation is a typical application of implantable neurostimulation. A pulse generator implanted in the body generates stimulation pulses, which are transmitted to the various connecting components within the top cover via a feedthrough connector. The top cover is then connected to extension wires via internal connectors, which in turn connect to electrodes, outputting the stimulation signals to target locations in the brain, thereby achieving the desired therapeutic effect.

[0003] However, current deep brain stimulation technologies only implant a maximum of two electrodes in the patient's head. For example, CN106669034A discloses a temperature feedback-based deep brain stimulation bleeding detection system, which includes at least one deep brain stimulator and an external device. The deep brain stimulator includes a stimulation electrode, a hemoglobin sensor located near the stimulation electrode, a pulse generator module, a temperature sensor, a charging coil, at least one main battery, at least one backup battery, a processor module, and a first communication module; the external device includes a second communication module and an early warning module; and the processor module controls the charging coil to charge at least one main battery and at least one backup battery.

[0004] However, with the continued expansion of treatments and increasing demands for efficacy, the current approach of implanting a maximum of two electrodes is no longer sufficient. Existing technologies have addressed this issue by adding pulse generators to provide more implantable electrodes. However, this approach also presents a series of challenges, such as high surgical costs (at least doubling them) and a significant increase in the patient's risk of rejection and infection. Therefore, addressing these issues by adding pulse generators is not a viable solution.

[0005] Therefore, it is a technical problem that needs to be solved urgently to provide a targeted neural electrical stimulation system that can be configured with multiple implantable electrodes. Summary of the Invention

[0006] To address the above-mentioned defects, the present invention provides a neural electrical stimulation system that can be configured with multiple implantable electrodes, including a pulse generator, an extension wire, an electrode and a fixing device, wherein the pulse generator is a multi-channel multi-contact pulse generator, the extension wire is connected to the multi-channel multi-contact pulse generator through contacts, the electrode is connected to the extension wire, and the fixing device is used to fix the electrode during use.

[0007] Furthermore, the extension wires are respectively connected to the contact positions of the multi-channel multi-contact pulse generator, and the electrodes (4) are respectively connected to the extension wires.

[0008] Furthermore, a contact connection assembly is provided on the upper part of the pulse generator, and the contact connection assembly is connected to the main part of the pulse generator through a feed-through connector, wherein the contact connection assembly includes a supporting portion with grooves on both sides, and a matching number of contact connection assemblies are fixed in the grooves, and the contact connection assembly includes a connector, a sealing plug at a screw locking position and a locking piece, and one end of the locking piece is facing the side of the contact assembly where the contact is provided, and the part of the contact used to connect with the extension wire is provided with a port sealing ring.

[0009] Furthermore, the extension wire includes a plug end, a wire and a socket end; wherein, the plug end is inserted into the contact of the pulse generator, the socket end is plugged into the connector of the electrode, and the socket end is fixedly connected to the connector by a plurality of screws.

[0010] Furthermore, the grooves are symmetrically arranged on the left and right sides of the support portion, and the number is 2; the number of the extending wires is consistent with the number of the grooves.

[0011] Furthermore, there are at least two socket terminals, and the number of the electrodes is consistent with the number of the socket terminals.

[0012] Furthermore, there are four grooves, which are respectively located in the upper and lower layers on the left and right sides of the support part, and cooperate with the four extension wires. The number of contacts at the plug end of the extension wire is 4, forming a 4×4 contact pulse generator.

[0013] Furthermore, there are two grooves, which are respectively located on the right sides of the support part, and cooperate with the two extension wires. The number of contacts at the plug end of the extension wire is 8, forming a 2×8 contact pulse generator.

[0014] Furthermore, the number of the grooves is 2n, which are located on the left and right sides of the support part respectively, and are arranged in layers on the left and right sides when necessary, to match the 2n extension wires. The number of contacts at the plug end of the extension wires is m, forming a 2n×m contact pulse generator, where n and m are both natural numbers.

[0015] Beneficial effects of the present invention:

[0016] 1. Compared with the existing electrical stimulation system, the electrical stimulation system of the present invention can adjust the matching relationship between the number of pulse contacts and the number of electrodes according to the requirements of system precision, and realize multi-channel and multi-pulse electrical stimulation output;

[0017] 2. The present invention also adjusts the structure of the extended wire so that the number of electrodes can be increased as needed while the number of pulse contacts remains unchanged, thereby meeting the requirements of more complex electrode stimulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A reference diagram of a usage state of an embodiment of the present invention;

[0019] Figure 2 This is a preferred embodiment of the present invention, specifically a four-channel four-contact pulse electrical stimulation system, namely a 4×4 pulse electrical stimulation system;

[0020] Figure 3 This is an exploded view of the pulse generator of the 4×4 pulse electrical stimulation system;

[0021] Figure 4 This is a partial enlarged view of the 4-contact extension wire;

[0022] Figure 5 This is a partial enlarged view of the 8-contact extension wire;

[0023] Figure 6 Schematic diagram of the pulse generator of the dual-channel eight-contact, i.e., 2×8 pulse electrical stimulation system;

[0024] Figure 7 This is a schematic diagram of a dual-channel, eight-contact, or 2×8 pulse electrical stimulation system.

[0025] Pulse generator-1; fixture-2; extension wire-3; electrode-4; support portion with groove-1-1; port sealing ring-1-2; connector-1-3; screw locking sealing plug-1-4; locking piece-1-5; feed-through connector-1-6; plug end-3-1; wire-3-2; socket end-3-3. DETAILED DESCRIPTION

[0026] The invention is described in detail below with reference to the embodiments:

[0027] Figure 1 This is a reference diagram of the use state of a preferred embodiment of the present invention. The electrode 4 is fixed to the part to be measured of the person being measured by the fixing device 2, and the electrode 4 is connected to the pulse generator 1 through the extension wire 3.

[0028] Figure 2It is a preferred embodiment of a neural electrical stimulation system of the present invention that can be configured with multiple implantable electrodes, including a pulse generator 1, an extension wire 3, an electrode 4 and a fixing device 2, wherein the pulse generator 1 is a multi-channel multi-contact pulse generator, the extension wire 3 is connected to the multi-channel multi-contact pulse generator through contacts, the electrode 4 is connected to the extension wire 3, and the fixing device 2 is used to fix the electrode during use.

[0029] The extension wire 3 is connected to the contact position of the multi-channel multi-contact pulse generator, and the electrode 4 is connected to the extension wire 3 .

[0030] Preferably, if Figure 3 As shown, four contact connection components are arranged on the upper part of the pulse generator 1, and the contact connection components are connected to the main part of the pulse generator 1 through a feed-through connector 1-6, wherein the contact connection component includes a support part 1-1 with grooves on both sides, and the grooves are respectively located on the left and right sides of the support part 1-1, one group on the upper layer and one group on the lower layer, with a total of four grooves, and a matching number of contact connection components are fixed in the grooves, and the contact connection component includes a connector 1-3, a sealing plug 1-4 at a screw locking position and a locking piece 1-5, and one end of the locking piece 1-5 is facing the side of the contact component where the contact is arranged, and the part of the contact used to connect with the extension wire 3 is provided with a port sealing ring 1-2.

[0031] like Figure 4 As shown, the extension lead 3 includes a plug end 3-1, a lead 3-2, and a socket end 3-3. The plug end 3-1 is inserted into the contacts of the pulse generator 1, and the socket end is plugged into the connector of the electrode 4. The socket end and the connector are fixedly connected by a number of screws 5. The plug end has four contacts. The resulting device is a four-channel, four-contact pulsed electrical stimulation system, or 4×4 pulsed electrical stimulation system.

[0032] like Figure 5 The extension wire 3 has two conductors 3 - 2 , two socket ends 3 - 3 , and eight contacts on the plug end 3 - 1 .

[0033] Figure 6 and Figure 7 Schematic diagram of a dual-channel eight-contact pulse electrical stimulation system, wherein the grooves provided on the support portion 1-1 are two, located on the left and right sides of the support portion 1-1, respectively, and cooperate with two Figure 5 The extension wire 3 shown has 8 contacts at the plug end 3 - 1 , forming a 2×8 pulse electrical stimulation system.

[0034] By adjusting the number of contact connection components on the pulse generator 1 and the number of contacts on the plug end 3-1 on the extension wire 3, the number of channels and contacts that match the complexity of the indicator to be measured can be configured, thus overcoming the defect of the overly single detection method in the existing technology.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any changes made according to the technical essence of the present invention still fall within the scope of protection required by the present invention.

Claims

1. A neural electrical stimulation system configurable with multiple implantable electrodes, characterized in that: For deep brain electrical stimulation, comprising a pulse generator (1), an extension wire (3), an electrode (4) and a fixing device (2), wherein the pulse generator (1) is a multi-channel multi-contact pulse generator, the extension wire (3) is connected to the multi-channel multi-contact pulse generator via contacts, the electrode (4) is connected to the extension wire (3), and the fixing device (2) is used to fix the electrode during use; A contact connection assembly is provided on the upper portion of the pulse generator (1), and the contact connection assembly is connected to the main body of the pulse generator (1) via a feed-through connector (1-6), wherein the contact connection assembly comprises a support portion (1-1) with grooves provided on both left and right sides, and a matching number of contact assemblies are fixed in the grooves, the contact assembly comprises a connector (1-3), a sealing plug (1-4) for screw locking, and a locking member (1-5), and one end of the locking member (1-5) faces the side of the contact assembly where the contact is provided, and a port sealing ring (1-2) is provided on the portion of the contact assembly used for connecting to the extension wire (3); The extension wire (3) comprises a plug end (3-1), a wire (3-2) and a socket end (3-3); wherein the plug end (3-1) is inserted into the contact assembly of the pulse generator (1), the socket end is plugged into the connector of the electrode (4), and the socket end is fixedly connected to the connector by a plurality of screws (5); Each of the contact assemblies has 8 contacts; Each of the extension wires (3) has one plug end (3-1), the number of contacts of the plug end (3-1) is 8, the number of socket ends (3-3) is 2, the number of contacts of each socket end (3-3) is 4, the number of electrodes (4) is the same as the number of socket ends (3-3), and the number of contacts of the electrode connector is 4; The grooves are symmetrically arranged on the left and right sides of the support portion (1-1), and the number thereof is a multiple of 2; the number of the extension wires (3) is consistent with the number of the grooves.

2. The neural electrical stimulation system according to claim 1, wherein: There are two grooves, located respectively in the The left and right sides of the support part (1-1) are equipped with two extension wires (3), and the contacts of the plug end (3-1) of the extension wire (3) The number is 8, forming a 2×8 contact pulse generator.

3. The neural electrical stimulation system according to claim 1, wherein: The number of the grooves is 2n, which are respectively located on the left and right sides of the support portion (1-1) and arranged in layers on the left and right sides, and matched with the 2n extension wires (3). The number of contacts at the plug end (3-1) of the extension wire (3) is m, forming a 2n×m contact pulse generator, wherein n is a natural number greater than 1, and m is equal to 8.

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