CN217567139U - Vagus nerve stimulator - Google Patents
Vagus nerve stimulator Download PDFInfo
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- CN217567139U CN217567139U CN202220856388.5U CN202220856388U CN217567139U CN 217567139 U CN217567139 U CN 217567139U CN 202220856388 U CN202220856388 U CN 202220856388U CN 217567139 U CN217567139 U CN 217567139U
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Abstract
The utility model relates to the technical field of vagus nerve electrical stimulation, in particular to a vagus nerve stimulator, which comprises a stimulation generating device and an insulating substrate, wherein a plurality of positive needles and a plurality of negative needles are fixedly inserted in the first surface of the insulating substrate, the positive needles and the negative needles are in one-to-one correspondence and are arranged in pairs, the positive needles are electrically connected with the positive output end of the stimulation generating device, and the negative needles are electrically connected with the negative output end of the stimulation generating device; the edge of the insulating substrate is provided with a pasting part, and the height of each positive electrode needle protruding out of the insulating substrate and the height of each negative electrode needle protruding out of the insulating substrate are both larger than the thickness of the horny layer of the skin of a human body and smaller than the distance from the surface of the skin of the human body to the outer side surface of the vagus nerve; when the electric stimulation device is used, the end parts of the conductive needles can penetrate through the human skin stratum corneum and extend to the position between the inner side surface of the human skin stratum corneum and the outer side surface of the vagus nerve, the current intensity is not influenced by the stratum corneum and sweat resistance, and the electric stimulation effect is ensured.
Description
Technical Field
The utility model relates to a vagus nerve electrical stimulation technical field especially relates to a vagus nerve stimulator.
Background
The vagus nerve electrical stimulation can be used for treating epilepsy and has treatment potential on pain, upper limb motor function rehabilitation after stroke and fatigue. At present, all percutaneous vagus nerve stimulators are wet electrodes; when in use, a doctor coats the conductive paste on the skin surface of a patient at a position corresponding to the vagus nerve according to the projection position of the vagus nerve and branches thereof on the body surface, then the doctor holds the electrode by hand and presses the electrode against the position of the patient coated with the conductive paste, thereby applying electric stimulation to the vagus nerve; therefore, when the conventional percutaneous vagus nerve stimulator is used for electrically stimulating the vagus nerve, the current intensity is influenced by the resistance of the stratum corneum and sweat of the skin, and the electrical stimulation effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the current applied to the vagus nerve by the existing percutaneous vagus nerve stimulator is influenced by the resistance of the stratum corneum and sweat of the skin, and the electrical stimulation effect is poor.
In order to solve the technical problem, the present invention provides a vagus nerve stimulator, including a stimulation generating device and an insulating substrate, a plurality of positive needles and a plurality of negative needles are fixedly inserted into a first surface of the insulating substrate, each of the positive needles and each of the negative needles correspond to each other and are arranged in pairs, each of the positive needles is electrically connected to a positive output terminal of the stimulation generating device, and each of the negative needles is electrically connected to a negative output terminal of the stimulation generating device;
the edge of the insulating substrate is provided with a pasting part used for adhering the insulating substrate to the surface of human skin, and the height of the positive pole needles protruding out of the insulating substrate and the height of the negative pole needles protruding out of the insulating substrate are both larger than the thickness of the horny layer of the human skin and smaller than the distance between the surface of the human skin and the outer side surface of the vagus nerve.
Preferably, an anode conducting strip and a cathode conducting strip are embedded in the insulating substrate, each anode needle is electrically connected with the anode conducting strip, each cathode needle is electrically connected with the cathode conducting strip, the anode conducting strip is electrically connected with the anode output end of the stimulation generating device, and the cathode conducting strip is electrically connected with the cathode output end of the stimulation generating device.
Preferably, a first jack is arranged at a position where the second surface of the insulating substrate is opposite to the positive conducting strip, a second jack is arranged at a position where the second surface of the insulating substrate is opposite to the negative conducting strip, the stimulation generating device is connected with a plug through a wire, the plug is provided with a positive conducting piece and a negative conducting piece, the end part of the positive conducting piece penetrates through the first jack and is attached to the positive conducting strip, and the end part of the negative conducting piece penetrates through the second jack and is attached to the negative conducting strip.
Preferably, a first magnetic strip is embedded on the periphery of the insulating substrate, a second magnetic strip arranged opposite to the first magnetic strip is arranged on the end face of the plug, and the first magnetic strip and the second magnetic strip are mutually adsorbed in the plug inserting state.
Preferably, the vagus nerve stimulator further comprises a waterproof membrane, wherein in the plug pulled-out state, the waterproof membrane covers the insulating substrate, and the edge of the waterproof membrane is attached to the surface of the skin of the human body at the edge of the insulating substrate.
Preferably, the positive conductive sheet and the negative conductive sheet are both flexible conductive films, and the insulating substrate is a flexible sheet.
Preferably, the insulating substrate is rectangular, the positive electrode pins are arranged in parallel along the width direction of the insulating substrate at intervals, and the negative electrode pins are arranged in parallel along the width direction of the insulating substrate at intervals; each positive electrode pin and each corresponding negative electrode pin are arranged at intervals along the length direction of the insulating substrate.
Preferably, the length of the insulating substrate is greater than or equal to 1 cm and less than or equal to 1.5 cm; the width of the insulating substrate is greater than or equal to 0.5 cm and less than or equal to 1 cm.
Preferably, the length of each positive electrode pin and each negative electrode pin protruding from the insulating substrate is greater than or equal to 50 micrometers and less than or equal to 100 micrometers.
Preferably, the flow direction of the current formed by each positive pole needle and the corresponding negative pole needle is parallel to the axial direction of the vagus nerve.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a vagus nerve stimulator, which comprises an stimulation generating device and an insulating substrate, wherein a plurality of positive needles and a plurality of negative needles are fixedly inserted into the first surface of the insulating substrate, each positive needle and each negative needle are in one-to-one correspondence and are arranged in pairs, each positive needle is electrically connected with the positive output end of the stimulation generating device, and each negative needle is electrically connected with the negative output end of the stimulation generating device; the edge of the insulating substrate is provided with a pasting part, and the height of each positive electrode needle protruding out of the insulating substrate and the height of each negative electrode needle protruding out of the insulating substrate are both larger than the thickness of the horny layer of the skin of a human body and smaller than the distance from the surface of the skin of the human body to the outer side surface of the vagus nerve; when the stimulation device is used, the insulating substrate is pressed, one end of each positive electrode needle, which is far away from the insulating substrate, and one end of each negative electrode needle, which is far away from the insulating substrate, penetrate through the human skin stratum corneum and extend to the position between the inner side surface of the human skin stratum corneum and the outer side surface of the vagus nerve, and the current applied by the stimulation generation device forms a loop between the positive electrode needles and the negative electrode needles of each group of conductive needles and is applied to the vagus nerve, so that the current intensity is not influenced by the stratum corneum and sweat resistance any more, and the electrical stimulation effect is ensured; moreover, the electrode assembly is adhered to the surface of the skin of the human body through the adhering part, so that a doctor does not need to continuously press the insulating substrate, and the operation is convenient.
Drawings
Fig. 1 is a schematic structural diagram of the vagus nerve stimulator according to the present invention;
FIG. 2 is a front view of an insulating substrate;
FIG. 3 isbase:Sub>A cross-sectional view taken at A-A in FIG. 2;
FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;
FIG. 5 is an isometric view of an insulating substrate;
fig. 6 is a schematic diagram of the application of the vagus nerve stimulator of the present invention to electrical cervical vagus nerve stimulation;
FIG. 7 is a schematic diagram illustrating the position relationship between the conductive pins and the vagus nerve;
in the figure, 1, a stimulus generating device; 2. an electrode assembly; 21. an insulating substrate; 211. a first jack; 212. a second jack; 213. a first magnetic stripe; 22. a conductive pin; 221. a positive electrode needle; 222. a negative pole needle; 23. a sticking part; 24. a positive electrode conductive sheet; 25. a negative electrode conductive sheet; 3. the vagus nerve.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the present invention.
As shown in fig. 1 to 7, the vagus nerve stimulator according to the preferred embodiment of the present invention includes a stimulation generating device 1 and an electrode assembly 2, the electrode assembly 2 includes an insulating substrate 21 and a plurality of sets of conductive needles 22 disposed on the insulating substrate 21, each set of conductive needles 22 includes a positive needle 221 and a negative needle 222, each positive needle 221 and each negative needle 222 are fixedly inserted on a first surface of the insulating substrate 21, each positive needle 221 and each negative needle 222 are corresponding to each other and arranged in pairs, each positive needle 221 is electrically connected to a positive output end of the stimulation generating device 1, and each negative needle 222 is electrically connected to a negative output end of the stimulation generating device 1; the edge of the insulating substrate 21 is provided with an adhesive part 23 for adhering the insulating substrate 21 to the skin surface of the human body, and the height of each positive electrode needle 221 protruding out of the insulating substrate 21 and the height of each negative electrode needle 222 protruding out of the insulating substrate 21 are both larger than the thickness of the horny layer of the skin of the human body and smaller than the distance between the skin surface of the human body and the outer side surface of the vagus nerve 3.
When the electrode assembly 2 is used, a doctor sticks the electrode assembly 2 on the surface of the skin of a patient through the sticking part 23 according to the projection position of the vagus nerve and the branches thereof on the body surface, and all the groups of the conductive needles 22 correspond to the positions of the vagus nerve, and because the height of the positive pole needles 221 protruding out of the insulating substrate 21 and the height of the negative pole needles 222 protruding out of the insulating substrate 21 are both greater than the thickness of the horny layer of the skin of the human body and less than the distance between the surface of the skin of the human body and the outer side surface of the vagus nerve 3, the positive pole needles 221 and the negative pole needles 222 penetrate through the horny layer of the skin, the current intensity applied to the vagus nerve by the electrode assembly 2 is not influenced by the horny layer and sweat resistance any more, and current loops are formed between the positive pole needles 221 and the negative pole needles 222 of all the groups of the conductive needles 22, so that the electrical stimulation effect is ensured; in addition, the electrode assembly 22 is adhered to the surface of the skin of the human body through the adhesion part 23, so that the doctor does not need to continuously press the insulating substrate, and the operation is convenient.
As shown in fig. 2, 3 and 4, the insulating substrate 21 is embedded with a positive conductive sheet 24 and a negative conductive sheet 25, each positive pin 221 is electrically connected to the positive conductive sheet 24, each negative pin 222 is electrically connected to the negative conductive sheet 25, the positive conductive sheet 24 is electrically connected to the positive electrode of the stimulus generating device 1, and the negative conductive sheet 25 is electrically connected to the negative electrode of the stimulus generating device 1.
Specifically, the second surface of the insulating substrate 21 is provided with a first jack 211 at a position opposite to the positive conductive plate 24, the second surface of the insulating substrate 21 is provided with a second jack 212 at a position opposite to the negative conductive plate 25, the stimulation generating device 1 is connected with a plug through a wire, the plug is provided with a positive conductive piece and a negative conductive piece, the end of the positive conductive piece passes through the first jack 211 and is attached to the positive conductive plate 24, and the end of the negative conductive piece passes through the second jack 212 and is attached to the negative conductive plate 25.
For the use of the vagus nerve stimulator of being convenient for further, the week side of insulating substrate 21 inlays and is equipped with first magnetic stripe 213, and the terminal surface of plug is equipped with the second magnetic stripe with first magnetic stripe 213 mutual disposition, and first magnetic stripe 213 and second magnetic stripe adsorb each other to make the tip and the laminating of anodal conducting strip 24 of anodal electrically conductive piece and make the tip and the laminating of negative pole conducting strip 25 of negative pole electrically conductive piece. The arrangement of the first magnetic stripe 213 and the second magnetic stripe makes the connection between the plug and the substrate more convenient, and the plug and the substrate can be stably connected. Further, the plug is also provided with a magnetic switch which can adjust the magnetism of the second magnetic strip, so that a user can take the plug off the substrate 21 conveniently.
In this embodiment, the vagus nerve stimulator further includes a waterproof membrane, and when the plug is pulled out, the waterproof membrane covers the insulating substrate 21 and the edge of the waterproof membrane is attached to the skin surface of the human body at the edge of the insulating substrate 21. The waterproof film is arranged, so that the substrate is more reliably kept on the surface of the skin of a human body.
Further, the positive electrode conductive sheet 24 and the negative electrode conductive sheet 25 are both flexible conductive films, and the insulating substrate 21 is a flexible sheet.
In this embodiment, the current flow direction formed by each set of conductive needles is parallel to the axial direction of the vagus nerve 3, specifically, the current flow direction formed by each positive needle 221 and the corresponding negative needle 222 is parallel to the axial direction of the vagus nerve 3, which ensures that the current stimulation range is wider; specifically, the insulating substrate 21 is rectangular, the conductive pins 22 of each group are arranged in parallel along the width direction of the insulating substrate 21 at intervals, and the positive pins 221 and the corresponding negative pins 222 are arranged along the length direction of the insulating substrate 21 at intervals; specifically, the positive electrode pins 221 are arranged in parallel along the width direction of the insulating substrate 21 at intervals, and the negative electrode pins 222 are arranged in parallel along the width direction of the insulating substrate 21 at intervals; the central positions of the positive pole needle and the negative pole needle of each group of the conductive needles are optimal stimulation areas, when in use, the length direction of the insulating substrate 21 is arranged along the axial direction of the vagus nerve 3, thereby leading the optimal stimulation areas of the conductive needles 22 to pass through the vagus nerve 3, further ensuring the electrical stimulation effect,
fig. 6 is a schematic diagram illustrating a state of use of the vagus nerve stimulator according to the present embodiment in electrically stimulating the cervical vagus nerve, wherein the length of the insulating substrate 21 is greater than or equal to 1 cm and less than or equal to 1.5 cm; the width of the insulating substrate 21 is 0.5 cm or more and 1 cm or less. As shown in fig. 6, the insulating substrate 21 is configured in a strip shape, which is convenient for the doctor to adhere the insulating substrate to the carotid triangle depressed area. The length of each positive electrode needle 221 and each negative electrode needle 222 protruding from the insulating substrate 21 is greater than or equal to 50 micrometers and less than or equal to 100 micrometers, so that each positive electrode needle 221 and each negative electrode needle 222 can penetrate through the stratum corneum of the skin without losing the skin and blood vessels.
In summary, the vagus nerve stimulator of the present invention not only avoids the influence of the skin cuticle and sweat resistance, but also ensures the electrical stimulation effect; moreover, the electrode assembly 2 is adhered to the surface of the skin of the human body through the adhering part, so that the doctor does not need to continuously press the insulating substrate 21, and the operation is convenient; the current formed by each group of conducting pins 22 is arranged in parallel with the axial direction of the vagus nerve 3, so that the current stimulation range is wider; the electrode assembly 2 can be kept on the surface of the skin of a human body, so that a patient can perform electric stimulation according to medical advice, doctors do not need to be relied on for each treatment, and the treatment cost is greatly reduced; the first magnetic strip 213 and the second magnetic strip are arranged to facilitate the user to connect a plug to the insulating base 21.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The vagus nerve stimulator is characterized by comprising a stimulation generating device (1) and an insulating substrate (21), wherein a plurality of positive needles (221) and a plurality of negative needles (222) are fixedly inserted into a first surface of the insulating substrate, the positive needles (221) and the negative needles (222) are in one-to-one correspondence and are arranged in pairs, the positive needles (221) are electrically connected with a positive output end of the stimulation generating device (1), and the negative needles (222) are electrically connected with a negative output end of the stimulation generating device (1);
the edge of the insulating substrate (21) is provided with a pasting part (23) for adhering the insulating substrate (21) to the surface of the skin of a human body, and the height of the positive pole needles (221) protruding out of the insulating substrate (21) and the height of the negative pole needles (222) protruding out of the insulating substrate (21) are both larger than the thickness of the horny layer of the skin of the human body and smaller than the distance from the surface of the skin of the human body to the outer side surface of the vagus nerve (3).
2. The vagus nerve stimulator according to claim 1, wherein a positive conducting strip (24) and a negative conducting strip (25) are embedded in the insulating substrate (21), each positive needle (221) is electrically connected to the positive conducting strip (24), and each negative needle (222) is electrically connected to the negative conducting strip (25); the positive conducting strip (24) is electrically connected with the positive output end of the stimulation generating device (1), and the negative conducting strip (25) is electrically connected with the negative output end of the stimulation generating device (1).
3. The vagus nerve stimulator according to claim 2, wherein a first insertion hole (211) is formed on the second surface of the insulating substrate (21) opposite to the positive conductive sheet (24), a second insertion hole (212) is formed on the second surface of the insulating substrate (21) opposite to the negative conductive sheet (25), the stimulation generating device (1) is connected to a plug through a wire, the plug is provided with a positive conductive member and a negative conductive member, the end of the positive conductive member passes through the first insertion hole (211) and is attached to the positive conductive sheet (24), and the end of the negative conductive member passes through the second insertion hole (212) and is attached to the negative conductive sheet (25).
4. The vagus nerve stimulator according to claim 3, wherein a first magnetic stripe (213) is embedded on the periphery of the insulating substrate (21), a second magnetic stripe is disposed opposite to the first magnetic stripe (213) on the end surface of the plug, and the first magnetic stripe (213) and the second magnetic stripe are attracted to each other in the plug-in state.
5. The vagus nerve stimulator according to claim 3, further comprising a waterproof membrane covering the insulating base plate (21) and having an edge fitting to the skin surface of the human body at the edge of the insulating base plate (21) in the plug-out state.
6. The vagus nerve stimulator according to claim 2, wherein the positive conductive tab (24) and the negative conductive tab (25) are both flexible conductive films and the insulating substrate (21) is a flexible sheet.
7. The vagus nerve stimulator according to claim 1, wherein the insulating substrate (21) is rectangular, each of the positive needles (221) is spaced in parallel along a width direction of the insulating substrate (21), each of the negative needles (222) is spaced in parallel along a width direction of the insulating substrate (21); each positive electrode pin (221) and each corresponding negative electrode pin (222) are arranged at intervals along the length direction of the insulating substrate (21).
8. The vagus nerve stimulator according to claim 7, wherein the length of the insulating substrate (21) is greater than or equal to 1 cm and less than or equal to 1.5 cm; the width of the insulating substrate (21) is greater than or equal to 0.5 cm and less than or equal to 1 cm.
9. The vagus nerve stimulator according to claim 1, wherein each of the positive needles (221) and each of the negative needles (222) protrudes from the insulating substrate (21) by a length greater than or equal to 50 microns and less than or equal to 100 microns.
10. The vagus nerve stimulator according to claim 1, wherein the flow direction of the current formed by each of the positive needles (221) and the corresponding negative needle (222) is arranged parallel to the axial direction of the vagus nerve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220856388.5U CN217567139U (en) | 2022-04-14 | 2022-04-14 | Vagus nerve stimulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220856388.5U CN217567139U (en) | 2022-04-14 | 2022-04-14 | Vagus nerve stimulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217567139U true CN217567139U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220856388.5U Active CN217567139U (en) | 2022-04-14 | 2022-04-14 | Vagus nerve stimulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217567139U (en) |
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2022
- 2022-04-14 CN CN202220856388.5U patent/CN217567139U/en active Active
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