阅读说明：本技术 植入电极通用连接器、装置及注入电压测试装置 (Universal connector and device for implanted electrode and injection voltage testing device ) 是由 李冰 王伟明 李路明 吴峰 艾飞 于 2020-12-02 设计创作，主要内容包括：本发明提供一种植入电极通用连接器、装置及注入电压测试装置,该植入电极通用连接器,包括多个导电端子,当柱状植入电极安装到通用连接器中,部分导电端子会与电极触点接触实现电连接,由于每一个导电端子都连接有一根连接导线,而连接导线的另一端设置为自由端,测试者只要将与同一个电极触点连接的所有导电端子的连接导线都连接至同一个测试通道中即可实现对该电极触点的测试。由于柱状植入电极规格的不同,与电极触点实现电连接的导电端子也不相同,为了实现不同规格植入电极连接的通用性,测试者可根据导电端子与电极触点的接触情况,调节各个连接导线与测试通道的连接情况即可。(The invention provides a universal connector for an implanted electrode, a device and an injection voltage testing device, wherein the universal connector for the implanted electrode comprises a plurality of conductive terminals, when a columnar implanted electrode is installed in the universal connector, part of the conductive terminals can be contacted with an electrode contact to realize electric connection, each conductive terminal is connected with a connecting lead, the other end of each connecting lead is set as a free end, and a tester can realize the test of the electrode contact by connecting the connecting leads of all the conductive terminals connected with the same electrode contact to the same testing channel. Because the specifications of the columnar implanted electrodes are different, the conductive terminals electrically connected with the electrode contacts are different, and in order to realize the universality of the connection of the implanted electrodes with different specifications, a tester can adjust the connection condition of each connecting lead and the test channel according to the contact condition of the conductive terminals and the electrode contacts.)

1. An implantable electrode universal connector for use in an injection voltage testing apparatus for electromagnetic compatibility testing of an implantable neurostimulator, the universal connector comprising:

an outer frame;

the conductive terminals (257) are distributed on the inner side of the outer frame, the arrangement of the conductive terminals (257) is matched with the shape of an implanted electrode, two adjacent conductive terminals (257) are isolated from each other, and part of the conductive terminals (257) are contacted with an electrode contact (41) of the implanted electrode after the implanted electrode is installed to realize electric connection;

and one end of each of the connecting wires (222) is connected to each of the conductive terminals (257), the other end of each of the connecting wires (222) is a free end, and the free ends can be connected to the same injection voltage test channel.

2. The universal implant electrode connector of claim 1, wherein the plurality of conductive terminals (257) are evenly distributed on the inside of the outer frame.

3. The implant electrode universal connector of claim 2, wherein the plurality of terminals are arranged in a rectangular pattern.

4. The implant electrode universal connector according to any one of claims 1-3, wherein the other end of the connection lead (222) is provided as a movable connector.

5. A plant into electrode universal connection structure, characterized by includes:

the implant electrode universal connector of any one of claims 1-4;

a second plug end (24) comprising a plurality of first connection contacts, each of said first connection contacts being in communication with a corresponding injection voltage test channel; the free ends of the connecting leads (222) of all conductive terminals (257) connected to the same electrode contact (41) are connected to the same first connecting point.

6. The implant electrode universal connection structure according to claim 5, wherein the conductive terminals (257) not in contact with the electrode contacts (41) are all provided grounded.

7. The implant electrode universal connection structure according to claim 5 or 6, characterized in that the second socket end (24) further comprises a second connection contact, the second connection contact being arranged to ground; the free ends of the connecting leads (222) of the conductive terminals (257) which are not in contact with the electrode contacts (41) are connected to the second connecting contacts.

8. An injection voltage testing device for an implantable neurostimulator electromagnetic compatibility test, which is characterized by comprising the implanted electrode universal connection structure of any one of claims 5-7.

Technical Field

The invention relates to the technical field of implantable medical instruments, in particular to an implantable electrode universal connector, an implantable electrode universal connecting device with the universal connector and an injection voltage testing device with the universal connecting device and used for an implantable nerve stimulator electromagnetic compatibility test.

Background

For an active implanted nerve stimulator, an electromagnetic interference protection test is required, especially for the test of electromagnetic interference protection with the frequency of 16.6Hz-80MHz, the influence of magnetic field and electric field coupling on a patient lead is considered, and a complete machine test (including not only the stimulator itself, but also lead parts such as an extension lead, an electrode and the like) is required. The traditional mode adopts manual testing, and the testing efficiency is low, and the accuracy is low.

In order to solve the problems of low test efficiency and low accuracy, chinese patent document CN 209728070U discloses an injection voltage testing device for an implanted neurostimulator electromagnetic compatibility test, which realizes a complete machine test by the cooperation of an injection voltage testing circuit board and a testing tool, however, the injection voltage testing device can only test an implanted electrode of one specification, if testing implanted electrodes of multiple specifications, multiple sets of injection voltage testing devices of different specifications need to be customized, which is expensive, and the test efficiency is also low because a conversion device is needed for testing operation.

Disclosure of Invention

Therefore, the technical problem to be solved by the embodiments of the present invention is to overcome the defect that the injection voltage testing apparatus for the electromagnetic compatibility test of the implantable neurostimulator in the prior art can only test the implanted electrode of one specification, and the testing efficiency is low, so as to provide a universal connection structure, an apparatus and an injection voltage testing apparatus for the implanted electrode, which can test the implanted electrode of different specifications.

The technical scheme adopted by the embodiment of the invention is as follows:

in a first aspect, an embodiment of the present invention provides an implanted electrode universal connector for use in an injection voltage testing apparatus for an implanted neurostimulator electromagnetic compatibility test, the universal connector including:

an outer frame;

the conductive terminals are distributed on the inner side of the outer frame, the arrangement of the conductive terminals is matched with the shape of an implanted electrode, two adjacent conductive terminals are isolated from each other, and part of the conductive terminals are contacted with an electrode contact of the implanted electrode after the implanted electrode is installed to realize electric connection;

and one end of each connecting wire is connected to each conductive terminal, the other end of each connecting wire is a free end, and the free ends can be connected to the same injection voltage testing channel.

Optionally, the plurality of conductive terminals are uniformly distributed on the inner side of the outer frame.

Optionally, the plurality of terminals are arranged in a rectangle.

Optionally, the other end of the connecting wire is provided as a movable connector.

In a second aspect, another embodiment of the present invention provides a universal connection structure for implanted electrodes, including:

the general connector of the implanted electrode is provided according to the embodiment of the first aspect;

the second plug end comprises a plurality of first connecting contact points, and each first connecting contact point is communicated with the corresponding injection voltage testing channel; the free ends of the connecting leads of all conductive terminals connected to the same electrode contact are connected to the same first connecting contact.

Optionally, all of the conductive terminals not in contact with the electrode contacts are grounded.

Optionally, the second socket end further includes a second connection contact, and the second connection contact is grounded; the free ends of the connecting leads of the conductive terminals not in contact with the electrode contacts are connected to the second connecting contacts.

In a third aspect, another embodiment of the present invention provides an injection voltage testing apparatus for electromagnetic compatibility testing of an implantable neurostimulator, which is characterized by comprising the implanted electrode universal connection structure provided according to the embodiment of the second aspect.

The technical scheme of the invention has the following advantages:

1. the universal connector for the implanted electrode provided by the invention realizes universal electric connection with columnar implanted electrodes of different specifications, and the intervals of the contact points of the columnar implanted electrodes of different specifications are different. Because the specifications of the columnar implanted electrodes are different, the conductive terminals electrically connected with the electrode contacts are different, and in order to realize the universality of the connection of the implanted electrodes with different specifications, a tester can adjust the connection condition of each connecting lead and the test channel according to the contact condition of the conductive terminals and the electrode contacts.

2. The universal connector for the implanted electrode provided by the invention has the advantages that the other end of the connecting lead is set as the movable connector, so that the connecting lead can be conveniently connected to the plug end communicated with the injection voltage testing channel.

3. The invention provides a universal connection structure for an implanted electrode, which comprises a universal connector and a second plug end, wherein the second plug end comprises a plurality of first connection contact points, each first connection contact point is communicated with a corresponding injection voltage test channel, and the free ends of the connection leads of all conductive terminals connected with the same electrode contact point are connected to the same first connection contact point. Through the structure, a tester can conveniently connect the electrode contact to be tested to the injection voltage testing channel, and can adjust the connection condition of each connecting lead and the first connecting contact point of the second connecting and inserting end according to the contact condition of the conductive terminal and the electrode contact, so that the universality of connection of columnar implant electrodes with different specifications is realized.

4. According to the universal connection structure for the implanted electrode, provided by the invention, the conductive terminals which are not in contact with the electrode contact are all grounded, so that the purposes of shielding, isolating and reducing test interference are achieved. Furthermore, the universal connection structure for the implanted electrode further comprises a second connection contact which is arranged in a grounding mode, and the conductive terminals which are not in contact with the electrode contact are all connected to the second connection contact, so that the operation is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a general connection structure of an implanted electrode according to an embodiment of the present invention.

Description of reference numerals:

211-a universal connector; 222-connecting wires; 24-a second spigot end; 257-conductive terminals; 4-columnar implantation electrode; 41-electrode contact.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

For an active implanted nerve stimulator, an electromagnetic interference protection test is required, especially for the test of electromagnetic interference protection with the frequency of 16.6Hz-80MHz, the influence of magnetic field and electric field coupling on a patient lead is considered, and a complete machine test (including not only the stimulator itself, but also lead parts such as an extension lead, an electrode and the like) is required. The traditional mode adopts manual testing, and the testing efficiency is low, and the accuracy is low.

In order to solve the problems of low test efficiency and low accuracy, the applicant applies a utility model patent with an authorization publication number of CN 209728070U and a name of the invention of 'injection voltage testing device for the electromagnetic compatibility test of an implanted nerve stimulator', the patent document discloses an automatic testing tool capable of realizing the complete machine test of the implanted nerve stimulator, the technical scheme disclosed by the patent document only carries out the electromagnetic compatibility test on an implanted electrode with one specification, however, the implanted electrode applied to the nerve stimulator has various specifications, such as a columnar electrode and a direction electrode, and the contact distance of the columnar electrode is divided into 1mm, 1.5mm, 4mm, 6mm and the like. In order to test the implanted electrodes with different specifications, the technical scheme disclosed in the patent document needs to customize a plurality of sets of test tools with different specifications, which is expensive, and needs to perform test operation by using conversion equipment when testing the electrodes with different specifications, so that the test efficiency is reduced.

In order to solve the defect of low test efficiency caused by testing only one specification of implanted electrodes in the prior art, an embodiment of the present invention provides an implanted electrode universal connector 211, which is applied to an injection voltage testing apparatus for an implanted neurostimulator electromagnetic compatibility test, and as shown in fig. 1, the universal connector 211 includes: a frame, a plurality of conductive terminals 257 and a plurality of connecting wires 222. Wherein the content of the first and second substances,

the outer frame plays a role in fixing and supporting, and the overall shape of the outer frame is approximately rectangular and is matched with the shape of the columnar implanted electrode 4.

The plurality of wire terminals are arranged inside the outer frame, preferably uniformly distributed inside the outer frame, but may be arranged in a non-uniform state in other embodiments. The arrangement of the plurality of lead terminals matches the shape of the columnar implanted electrode, preferably rectangular, but other shapes are not excluded. The conductive terminals 257 are uniformly distributed on the inner side of the outer frame. The two adjacent conductive terminals 257 are isolated from each other by keeping a minimum spacing distance or filling a conductive terminal gap with an insulating material. When the cylindrical implant electrode is mounted in the universal connector according to the embodiment of the present invention, a portion of the conductive terminals 257 will contact with the electrode contacts 41 of the implant electrode after the implant electrode is mounted, so as to achieve electrical connection. In order to test the columnar implanted electrodes with different specifications, each conductive terminal 257 is electrically connected to the connecting wire 222.

A plurality of connecting wires 222 corresponding to the plurality of conductive terminals 257, wherein one end of each connecting wire 222 is connected to a different conductive terminal 257, and the other end of each connecting wire 222 is used as a free end. A plurality of the free ends can be connected to the same injection voltage test channel. In the present embodiment, the free end is preferably configured as a movable connector, such as a pin, an aerial socket, etc., for facilitating mating with the first connection point of the second connector 24 of the injection voltage testing device.

The universal connector 211 for the implanted electrode provided by the embodiment of the invention realizes universal electrical connection with columnar implanted electrodes of different specifications, and the contact pitches of the columnar implanted electrodes 4 of different specifications are different. Because the specifications of the columnar implanted electrodes 4 are different, the conductive terminals 257 electrically connected with the electrode contacts 41 are different, and in order to realize the universality of the connection of the implanted electrodes with different specifications, a tester can adjust the connection condition between each connecting lead 222 and the test channel according to the contact condition between the conductive terminals 257 and the electrode contacts 41.

Another embodiment of the present invention provides a universal connecting structure for implanted electrodes, which includes the universal connector and the second plug end 24 of the above-mentioned embodiment of the present invention. Wherein the content of the first and second substances,

the second plug end 24 includes a plurality of first connection contacts, each of which is connected to a corresponding injection voltage test channel, and the specification of the second connection contact may refer to chinese patent document CN 209728070U. In an embodiment of the present invention, each of the connection contacts of the second terminal 24 can be connected to the free ends of a plurality of connection wires 222 at the same time. Preferably, each of the connection contacts can be simultaneously plug-mated and electrically connected to a movable connector of a plurality of connection leads 222.

When the post implant electrode is mounted in the universal connection structure, a portion of the conductive terminals 257 will contact the electrode contacts 41 to make electrical connection. Connecting the connecting wires 222 of all conductive terminals 257 connected to the same electrode contact 41 to the same first connecting point and thus to the same test channel; the second plug end 24 further comprises a second connecting contact, and the second connecting contact is grounded; for the purpose of shielding the insulation and reducing the test interference, the free ends of the connecting leads 222 of the conductive terminals 257 which are not in contact with the electrode contacts 41 are connected to the second connecting contacts.

As a variation of grounding the conductive terminals 257 not in contact with the electrode contacts 41, in other embodiments of the present invention, all of the conductive terminals 257 not in contact with the electrode contacts 41 are grounded, so as to achieve the purpose of shielding and isolating and reducing the test interference.

The conductive terminals 257, which are electrically connected to the electrode contacts 41, are different due to the different specifications of the implanted electrodes. In order to realize the versatility of the connection between the implanted electrodes of different specifications, the structure can adjust the connection condition between each connecting wire 222 and the second plugging end 24 according to the contact condition between the conductive terminal 257 and the electrode contact 41.

Another embodiment of the present invention further provides an injection voltage testing apparatus for an implanted neurostimulator electromagnetic compatibility test, including the implanted electrode universal connection structure of the above embodiment, and the rest of the structure is referred to the specification of chinese patent document CN 209728070U, which is not described herein again.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.