CN215426967U - External nerve stimulator - Google Patents
External nerve stimulator Download PDFInfo
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- CN215426967U CN215426967U CN202121060905.XU CN202121060905U CN215426967U CN 215426967 U CN215426967 U CN 215426967U CN 202121060905 U CN202121060905 U CN 202121060905U CN 215426967 U CN215426967 U CN 215426967U
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Abstract
The utility model discloses an external nerve stimulator, which comprises an electric contact component, a power supply component and a connecting wire, wherein the electric contact component provides an electric stimulation signal for internal nerves; the external nerve stimulator comprises a first connection state and a second connection state, wherein the first connection state is that the electric contact assembly is directly and electrically connected with the power supply assembly, and the electric contact assembly is electrically connected with the power supply assembly through a connecting wire; the external nerve stimulator has simple structure and convenient installation, and reduces the disinfection and test cost.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an in-vitro nerve stimulator.
Background
A nerve stimulator belongs to the technical field of medical instruments and is mainly used for testing nerve electrical stimulation therapy. Implantable electrical stimulation systems have been widely used in the treatment of neurological diseases, for example, deep alarm stimulation devices are often used to treat dyskinetic diseases such as parkinson's disease, and spinal cord stimulators can effectively improve chronic pain.
Before implanting the implantable electrical stimulation system into a patient, a doctor often needs to perform a preliminary test, and further adjusts the position of the electrode and stimulation parameters according to the feeling and symptom improvement degree of the patient so as to obtain the optimal treatment effect. Since the implantable neurostimulator is a sterile medical device, once the sterile package is opened, a patient needs to pay a purchase cost of tens of thousands yuan, and if the implantable neurostimulator is directly used for testing, the test result is not ideal, and the cost is too high. Meanwhile, if the implantable electrical stimulation system which is determined to be implanted into the body is directly applied to preliminary tests, high disinfection cost is faced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the existing implanted electrical stimulation system has high self cost and disinfection cost and cannot be frequently applied to the test process before implantation.
In order to solve the technical problem, the utility model provides an external nerve stimulator, which comprises an electrical contact assembly, a power supply assembly and a connecting wire, wherein the electrical contact assembly provides an electrical stimulation signal for an internal nerve, and the second connecting state provides an electrical signal for the power supply assembly;
the external nerve stimulator comprises a first connection state and a second connection state, the first connection state is that the electric contact assembly is directly and electrically connected with the power supply assembly, and the electric contact assembly is electrically connected with the power supply assembly through the connecting wire.
Preferably, the lower end of the electrical contact assembly is provided with a contained part, the upper end of the power supply assembly is provided with a containing part matched with the contained part, and when the containing part and the contained part are in interference fit, the electrical contact assembly and the power supply assembly are directly and electrically connected.
Preferably, the electrical contact assembly includes an electrode wire, an electrical contact housing and a printed circuit board disposed in the electrical contact housing, the printed circuit board is provided with an electrode contact point and a power interface, one end of the electrode wire penetrates through the electrical contact housing to be connected with the electrode contact point on the printed circuit board, and the other end of the electrode wire serves as the output end of the electrode wire.
Preferably, the electric contact shell comprises an electric contact front cover, an electric contact middle cover and an electric contact rear cover, the electric contact front cover and a corresponding side of the electric contact middle cover are connected through a hinge, the printed circuit board is arranged in the electric contact middle cover, and the electric contact rear cover is buckled with the electric contact middle cover.
Preferably, the electric contact front cover, the electric contact middle cover and the electric contact rear cover each have a projection extending downward, and three projections constitute the housed portions.
Preferably, a metal sheet is arranged on the inner side of the electric contact front cover, when the electric contact front cover covers the electric contact middle cover, a grounding electric contact is further arranged on the printed circuit board, and the metal sheet is electrically connected with the grounding electric contact on the printed circuit board.
Preferably, an electrode hole is formed in the front cover of the electrical contact, and the electrode wire penetrates through the electrode hole to be connected with the electrode contact point on the printed circuit board.
Preferably, the power supply assembly comprises a power supply shell, and a power supply board and a battery which are arranged in the power supply shell, wherein the power supply board is electrically connected with the battery, and a power supply output interface is arranged on the power supply board.
Preferably, the power supply shell comprises a power supply front cover, a power supply middle cover and a power supply rear cover which are sequentially buckled, the battery is fixed in the power supply middle cover, and the power supply board is arranged on the inner side of the power supply front cover.
Preferably, the upper end of the power supply front cover is provided with a containing part matched with the contained part for use.
Compared with the prior art, one or more embodiments in the above scheme can have the following advantages or beneficial effects:
the external nerve stimulator provided by the embodiment of the utility model has two using states, wherein the power supply assembly and the electric contact assembly are directly and electrically connected through the connecting wire, so that the external nerve stimulator can be applied to temporary test in the operation process, the disinfection area in the test process is reduced, and the disinfection cost is further reduced; another power supply assembly and the electric contact assembly are directly electrically connected, and the state is mainly used for nerve stimulation testing after the operation is finished. The external nerve stimulator has simple structure and convenient installation, and reduces the disinfection and test cost.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 shows an exploded view of an external neural stimulator, in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention showing the direct connection of an electrical contact assembly to a power supply assembly;
FIG. 3 is a schematic diagram of an electrical contact assembly and power supply assembly connected by a connecting wire according to an embodiment of the present invention;
FIG. 4 illustrates an exploded view of an electrical contact assembly in accordance with one embodiment of the present invention;
FIG. 5 illustrates a front view of an electrical contact assembly in accordance with a first embodiment of the present invention;
fig. 6 is a side view of the front cover of the electrical contact assembly shown in an open position in accordance with one embodiment of the present invention;
FIG. 7 is a schematic diagram of a printed circuit board of an electrical contact assembly according to one embodiment of the present invention;
FIG. 8 is a schematic diagram of a power module according to an embodiment of the present invention;
wherein, 1 is an electrode wire, 2 is an electric contact rear cover, 3 is a printed circuit board, 3-1 is an electrode contact, 3-2 is a power interface, 3-3 is a grounding electric contact, 4 is an electric contact middle cover, 5 is a grounding guide block, 6 is an electric contact front cover, 7 is a connecting wire, 8 is a power rear cover, 9 is a power middle cover, 10 is a battery, 11 is a power panel, 12 is a power key, 13 is a power front cover, 14 is an electric contact component, 15 is a power supply component, 16 is a containing part, and 17 is a contained part.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the drawings and examples, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments of the present invention may be combined with each other, and the technical solutions formed are within the scope of the present invention.
The nerve stimulator is mainly used for nerve electrical stimulation therapy tests, and doctors usually need to perform preliminary tests before implanting the implanted nerve stimulator into a patient, and further adjust the positions and stimulation parameters of the electrodes according to the feeling and symptom improvement degree of the patient to obtain the optimal treatment effect. Since the implantable neurostimulator is a sterile medical device, once the sterile package is opened, a patient needs to pay a purchase cost of tens of thousands yuan, and if the implantable neurostimulator is directly used for testing, the test result is not ideal, and the cost is too high. Meanwhile, if the implantable electrical stimulation system which is determined to be implanted into the body is directly applied to preliminary tests, high disinfection cost is faced.
Example one
In order to solve the above problems in the prior art, an embodiment of the present invention provides an external nerve stimulator.
FIG. 1 shows an exploded view of an external neural stimulator, in accordance with an embodiment of the present invention; FIG. 2 is a schematic diagram of an embodiment of the present invention showing the direct connection of an electrical contact assembly to a power supply assembly; FIG. 3 is a schematic diagram of an electrical contact assembly and power supply assembly connected by a connecting wire according to an embodiment of the present invention; referring to fig. 1 to 3, the external nerve stimulator of the present invention includes an electrical contact assembly 14, a power supply assembly 15 and a connecting wire 7, wherein the electrical contact assembly 14 and the power supply assembly 15 can be electrically connected firmly by interference fit, and the electrical contact assembly 14 and the power supply assembly 15 can be electrically connected by the connecting wire 7. Preferably, the connecting wire 7 is a cable wire.
In the embodiment, in order to realize interference fit between the electrical contact assembly 14 and the power supply assembly 15, the lower end of the electrical contact assembly 14 is provided with the accommodated part 17, the upper end of the power supply assembly 15 is provided with the accommodating part 16 matched with the accommodated part 17, and when the accommodating part 16 is in interference fit with the accommodated part 17, the power supply interface 3-2 in the electrical contact assembly 14 is just correspondingly connected with the power supply output interface of the power supply assembly 15, so that the electrical connection between the electrical contact assembly 14 and the power supply assembly 15 is realized. Preferably, the power supply interface 3-2 and the power supply output interface are both Type-c interfaces; at this time, the interfaces at the two ends of the connecting wire 7 are also Type-c interfaces.
Specifically, the electrical contact assembly 14 is primarily used to provide electrical stimulation signals to nerves within the body; fig. 4 shows an exploded view of an electrical contact assembly in accordance with a first embodiment of the present invention. Referring to fig. 4, the electrical contact assembly 14 of the present invention includes an electrode wire 1, an electrical contact housing, and a printed circuit board 3 (i.e., PCB board) disposed inside the electrical contact housing. The electrode wire 1 is mainly used for realizing the transmission of electrical stimulation between the nerve stimulator and nerves in a patient. Furthermore, a plurality of electric contacts are arranged at two ends of the electrode wire 1, one end of the electric contact penetrates through the electric contact shell to be connected with an electrode contact point 3-1 on the printed circuit board 3, and the other end of the electric contact is connected with the internal nerve. FIG. 7 is a schematic diagram of a printed circuit board of an electrical contact assembly according to one embodiment of the present invention; referring to fig. 7, the printed circuit board 3 is provided with electrode contacts 3-1, a power interface 3-2, and ground electrical contacts 3-3. The electrode contact point 3-1 is mainly used for being in contact with an electric contact point at one end of the electrode wire 1, so that the electric transmission performance is guaranteed; the power interface 3-2 is mainly used for connecting with a power output interface or connection 7 of the power supply assembly 15 to receive the electrical signals transmitted by the power supply assembly 15.
The electric contact shell in the embodiment is provided with an electric contact front cover 6, an electric contact middle cover 4 and an electric contact rear cover 2, wherein the electric contact front cover 6 is connected with a corresponding edge of the electric contact middle cover 4 through a hinge, and the electric contact front cover 6 can be turned over and closed with the electric contact middle cover 4 through the hinge. FIG. 5 illustrates a front view of an electrical contact assembly in accordance with a first embodiment of the present invention; figure 6 is a side view of an electrical contact front cover of an electrical contact assembly according to one embodiment of the present invention shown in an open position. The printed circuit board 3 is arranged in the electric contact middle cover 4, the metal sheet is arranged on the inner side of the electric contact front cover 6, the electric contact assembly further comprises a grounding guide block 5, and when the electric contact front cover 6 is covered with the electric contact middle cover 4, the metal sheet is electrically connected with the grounding electric contact 3-3 on the printed circuit board 3 through the grounding guide block 5 so as to ensure that the whole electric contact shell is grounded, and the safety and the reliability are realized. Preferably, the ground guide 5 is a metal material, which may be integrally formed with a metal sheet on the electric contact front cover 6; or can be separately formed and buckled on the electric contact front cover 6 to be connected with the metal sheet, and when the contact front cover is covered with the electric contact middle cover 4, the contact front cover is electrically connected with the grounding electric contact 3-3 on the printed circuit board 3 in a contacting way. Preferably, the electric contact front cover 6 is provided with an electrode hole, and the electrode limit 1 passes through the electrode hole to be connected with the electrode contact point 3-1 on the printed circuit board 3.
The electrical contact assembly 14 is assembled in the following manner: firstly, the printed circuit board 3 is fixedly arranged on the electric contact middle cover 4, then the electric contact rear cover 2 is buckled with the electric contact middle cover 4, then the grounding guide block 5 is buckled on the electric contact front cover 6 to form an assembly (when the grounding guide block 5 is formed independently), and then one side of the electric contact front cover 6 is connected with the corresponding side of the electric contact middle cover 4 through a hinge, so that the electric contact front cover 6 and the electric contact middle cover 4 form a flip structure.
Further, the accommodated part 17 of the electrical contact assembly 14 is disposed on the electrical contact housing, and specifically, the lower ends of the electrical contact front cover 6, the electrical contact middle cover 4 and the electrical contact rear cover 2 are respectively provided with a protrusion extending downwards, and the three protrusions constitute the accommodated part 17 of the electrical contact assembly 14.
The power supply assembly 15 is primarily used to provide electrical signals to the electrical contact assembly 14. Fig. 8 is a schematic structural diagram of a power supply module 15 according to a first embodiment of the present invention, and referring to fig. 8, an electrical contact assembly 14 according to the present invention includes a power supply housing, a power supply board 11 and a battery 10, wherein the power supply board 11 and the battery 10 are disposed in the power supply housing, the power supply board 11 and the battery 10 are electrically connected, and a power supply output interface is disposed on the power supply board 11.
Specifically, the power supply shell comprises a power supply front cover 13, a power supply middle cover 9 and a power supply rear cover 8 which are sequentially buckled, wherein a battery 10 is fixed in the power supply middle cover 9, a power supply board 11 is arranged on the inner side of the power supply front cover 13, and the power supply board 11 is in electrical contact connection with the battery 10. Further, the power supply module 15 further comprises a power button 12 for controlling the external neural stimulator to be turned on and off. The power button 12 is configured to be fastened to the power bezel 13 and to trigger the trigger switch on the power board 11 when opened or closed.
In the embodiment, the power board 11 not only has a power supply function, such as supplying power to the printed circuit board 3, but also has a signal processing function, such as processing a stimulation signal generated by the printed circuit board 3, and when the electrical contact assembly 14 and the power supply assembly 15 are directly connected, the processed stimulation signal is transmitted to the power interface 3-2 of the printed circuit board 3 through the power output interface, and then transmitted to the electrode limit 1 through the electrode contact point 3-1 of the printed circuit board 3. Of course, when the electrical contact assembly 14 and the power supply assembly 15 are connected by the connection line 7, the power supply board 11 transmits the processed stimulation signal from the power output interface to the power interface 3-2 of the printed circuit board 3 through the connection line 7, and then from the electrode contact 3-1 of the printed circuit board 3 to the electrode wire 1.
The power supply assembly 15 is assembled in the following manner: the power supply assembly 15 is formed by first fixing the power supply key 12 and the power supply plate 11 to the power supply front cover 13, then fixing the power supply middle cover 9 to the power supply front cover 13, then placing the battery 10 in the power supply middle cover 9 and making electrical contact with the power supply plate 11, and finally fixing the power supply rear cover 8 to the power supply middle cover 9.
Further, the power supply front cover 13 has a housing portion 16 at an upper end thereof for use in cooperation with the housed portion 17.
After the electric contact assembly 14 and the power supply assembly 15 are assembled in an interference fit mode through the containing part 16 and the contained part 17, the lip edge of the containing part 16 on the power supply front cover 13 in the power supply assembly 15 clamps the electric contact front cover 6 of the electric contact assembly 14, so that the flip cover structure formed by the electric contact front cover 6 and the electric contact middle cover 4 is prevented from opening and closing.
The external nerve stimulator has two use states. State one power supply assembly 15 is electrically connected with electrical contact assembly 14 through connecting wire 7, mainly used for temporary testing during operation; in another use state, the power supply assembly 15 is directly connected with the electrical contact assembly 14 through the power output interface and the power interface 3-2, and is mainly applied after the operation. The external nerve stimulator electric contact assembly 14 and the power supply assembly 15 are assembled in an interference fit mode, and the lip edge above the power supply assembly 15 is used for clamping the flip structure of the electric contact assembly 14 after the assembly, so that the flip structure is prevented from being opened and closed. Moreover, the electric contact front cover 6 of the external nerve stimulator is provided with a metal sheet, and when the electric contact front cover 6 and the electric contact middle cover 4 are closed, the metal sheet is contacted with the grounding electric contact 3-3 of the printed circuit board 3 through the grounding guide block 5, so that the whole shell is grounded, and the external nerve stimulator is safe and reliable.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (10)
1. An external nerve stimulator, which is characterized by comprising an electric contact assembly, a power supply assembly and a connecting wire, wherein the electric contact assembly provides an electric stimulation signal for an internal nerve, and the power supply assembly provides an electric signal for the electric contact assembly;
the external nerve stimulator comprises a first connection state and a second connection state, the first connection state is that the electric contact assembly is directly and electrically connected with the power supply assembly, and the second connection state is that the electric contact assembly is electrically connected with the power supply assembly through the connecting wire.
2. The external nerve stimulator of claim 1, wherein the electrical contact assembly is provided at a lower end thereof with a housed portion, and the power assembly is provided at an upper end thereof with a housed portion that mates with the housed portion, such that the electrical contact assembly and the power assembly are electrically connected directly when the housed portion is interference-fitted with the housed portion.
3. The external nerve stimulator of claim 2, wherein the electrical contact assembly comprises an electrode wire, an electrical contact housing, and a printed circuit board disposed in the electrical contact housing, the printed circuit board having an electrode contact point and a power interface disposed thereon, wherein one end of the electrode wire passes through the electrical contact housing to connect with the electrode contact point on the printed circuit board, and the other end of the electrode wire serves as the output end of the electrode wire.
4. The external nerve stimulator of claim 3, wherein the electrical contact housing comprises an electrical contact front cover, an electrical contact middle cover, and an electrical contact rear cover, wherein the electrical contact front cover and the electrical contact middle cover are connected by a hinge at corresponding edges, the printed circuit board is disposed in the electrical contact middle cover, and the electrical contact rear cover is fastened to the electrical contact middle cover.
5. The external neural stimulator of claim 4, wherein the electrical contact front cover, the electrical contact middle cover, and the electrical contact rear cover each have a downwardly extending boss, three bosses constituting the housed portions.
6. The external nerve stimulator of claim 4, wherein a metal plate is disposed inside the front cover of the electrical contact, and when the front cover of the electrical contact is covered on the middle cover of the electrical contact, a ground electrical contact is further disposed on the printed circuit board, and the metal plate is electrically connected to the ground electrical contact on the printed circuit board.
7. The external nerve stimulator of claim 4, wherein the front cover of the electrical contact is provided with an electrode hole, and the electrode wire passes through the electrode hole to connect with the electrode contact point on the printed circuit board.
8. The external nerve stimulator of claim 2, wherein the power supply assembly comprises a power supply housing, and a power supply board and a battery disposed in the power supply housing, the power supply board and the battery being electrically connected, the power supply board having a power output interface disposed thereon.
9. The external nerve stimulator of claim 8, wherein the power supply housing comprises a front power supply cover, a middle power supply cover and a rear power supply cover, the front power supply cover, the middle power supply cover and the rear power supply cover are sequentially fastened, the battery is fixed in the middle power supply cover, and the power supply board is disposed inside the front power supply cover.
10. The external nerve stimulator of claim 9, wherein the power supply bezel has a receptacle at an upper end thereof for mating with a receptacle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121060905.XU CN215426967U (en) | 2021-05-13 | 2021-05-13 | External nerve stimulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121060905.XU CN215426967U (en) | 2021-05-13 | 2021-05-13 | External nerve stimulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215426967U true CN215426967U (en) | 2022-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121060905.XU Active CN215426967U (en) | 2021-05-13 | 2021-05-13 | External nerve stimulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215426967U (en) |
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2021
- 2021-05-13 CN CN202121060905.XU patent/CN215426967U/en active Active
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