CN210698495U - Snail nucleus recording electrode - Google Patents
Snail nucleus recording electrode Download PDFInfo
- Publication number
- CN210698495U CN210698495U CN201921139630.1U CN201921139630U CN210698495U CN 210698495 U CN210698495 U CN 210698495U CN 201921139630 U CN201921139630 U CN 201921139630U CN 210698495 U CN210698495 U CN 210698495U
- Authority
- CN
- China
- Prior art keywords
- electrode
- cochlear
- lead
- electrode plate
- recording
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model provides a snail nuclear record electrode, the same face distribution of electrode slice body has a plurality of first test electrodes, and the wire is worn to establish and rather than corresponding connection at this internal, but still is provided with first clamping part on the wire of extending from the electrode slice afterbody, makes things convenient for centre gripping operation in the art. The utility model reduces the whole volume of the electrode plate, and provides extra mobility by freely increasing or decreasing the number of the movable electrodes; the electrode plate body adopts different color marks to assist in distinguishing the orientation of the electrode; the tail end of the lead is connected with an external signal in a wired or wireless mode. The utility model discloses can implant scenes such as operation and nerve guardianship and use at the sense of hearing brainstem, realize monitoring eABR, eCAP etc. simultaneously, make the sense of hearing brainstem implant location more accurate, expand application scope.
Description
Technical Field
The utility model relates to a snail nucleus recording electrode.
Background
The Auditory Brainstem Implant (ABI) technology converts sound into electrical stimulation through an electronic implant device, and directly acts on a cochlear nucleus complex at the initial part of the brainstem to obtain Auditory sense. The ABI is not limited by cochlear nerve conditions and is mainly used for patients who cannot realize auditory reconstruction through artificial cochlear implantation due to cochlear and cochlear neuropathy.
During ABI surgery, monitoring of auditory evoked potentials is crucial: by monitoring eCAP (electrically evoked auditory nerve compound action potential), cochlear nerve can be identified and function thereof can be monitored; by monitoring eABR (electrically evoked auditory brainstem response), it can be confirmed whether the implanted electrode is definitely located in the cochlear nucleus.
At present, the intraoperative test electrode clinically used for monitoring cannot monitor eCAP and eABR simultaneously, the application scene is single, the electrode plate of the test electrode is large in size, and no part for clamping is additionally arranged. Generally, a lead extending out of the tail of the electrode plate is directly clamped, but the lead is thin and has a circular section, so that a force application point cannot be well provided, and the angle of the electrode plate is difficult to adjust or the electrode plate is difficult to place at a correct position; if the clamping force is too small, the wire may slide easily, and if the clamping force is too large, the wire may be crushed, which is not favorable for clamping operation in operation. Further, the members for fixing the plurality of electrodes on the electrode sheet are generally transparent, and it is difficult to quickly recognize the orientation of the electrodes.
SUMMERY OF THE UTILITY MODEL
The utility model provides a snail nucleus recording electrode, easily centre gripping makes things convenient for the operation of performing the operation, can realize eABR, eCAP simultaneous monitoring, extends electrode application scope.
The utility model provides a snail nucleus recording electrode contains:
the electrode plate is provided with a body and a plurality of first test electrodes distributed on the same surface of the body;
the lead is arranged in the body in a penetrating way, is correspondingly connected with the first test electrode and extends out of the body from the tail part of the electrode plate to obtain an electrical stimulation signal;
and the first clamping component is arranged on the lead extending from the tail part of the electrode plate.
Optionally, the cochlear recording electrode further comprises one or more movable electrodes;
each movable electrode is provided with a lead wire for transmitting an electrical stimulation signal, one end of the lead wire is connected with a second test electrode, and the other end of the lead wire is arranged at a lead wire extending from the tail of the electrode plate;
a second grippable member is disposed on a lead of the movable electrode.
Optionally, a channel is formed in the first clampable part for a lead of the movable electrode to pass through.
Optionally, the body of the electrode sheet comprises a plurality of portions; each portion having a different color and sufficient transparency; the first position sequence of the parts corresponds to the first sequence combination of different colors and corresponds to the front state of the electrode plate; and the second position sequence of the plurality of parts corresponds to the second sequence combination of different colors and corresponds to the back state of the electrode plate.
Optionally, the plurality of portions of the body are upper and lower halves having different colors;
alternatively, the plurality of portions of the body are left and right halves having different colors.
Optionally, a lead extending from the tail of the electrode pad is connected to a stimulation device that provides an electrical stimulation signal;
or a lead extending from the tail of the electrode plate is connected with the signal receiving part; and the signal sending part of the stimulation device wirelessly transmits an electrical stimulation signal to the signal receiving part.
Optionally, the grippable member is disposed around the circumference of the wire;
the wire passes through the center of the grippable member or passes through the grippable member from an off-center location.
Optionally, the grippable member is a disc.
Optionally, the body of the electrode plate is provided with 1-4 first test electrodes.
The utility model provides a cochlear recording electrode, which reduces the whole volume of an electrode plate on the basis of an original electrode for testing in auditory brainstem implantation, freely increases and decreases the number of movable electrodes and provides additional activity performance; the electrode plate body adopts different color marks to assist in distinguishing the orientation of the electrode; the tail end of the lead is connected with an external signal in a wired or wireless mode, and a clamping component is arranged to facilitate clamping operation. This snail nuclear record electrode has kept original function, can realize in the art to eABR, eCAP's simultaneous monitoring to make test electrode change the operation, make the sense of hearing brainstem implant location more accurate, reduced the risk of operation, improved patient's postoperative hearing, expanded test electrode application scope.
Drawings
FIG. 1 is a schematic view of a cochlear recording electrode provided with a clampable member;
FIG. 2 is a schematic view of an electrode sheet of a cochlear recording electrode with different colors to aid in identifying the orientation of the electrode;
FIG. 3 is a schematic diagram of a cochlear recording electrode with a movable electrode;
FIG. 4 is a schematic diagram of an exemplary configuration of a clamping member in a cochlear recording electrode.
Detailed Description
Implanting an auditory brainstem implant device at the position of a cochlear nucleus, and generating auditory sensation by electrically stimulating the cochlear nucleus; the implanted portion of the auditory brainstem implant device contains a cochlear implant recording electrode for testing during ABI surgery.
As shown in fig. 1, the cochlear recording electrode comprises an electrode tab 10, a lead wire 20 extending from the tail of the electrode tab 10, and a first clampable member 30 provided on the lead wire 20. The electrode plate 10 comprises a body and a plurality of first test electrodes 11 distributed on the same surface of the body; a lead wire 20 is threaded through the body and correspondingly connected to the first test electrode 11.
The first grippable member 30 is circumferentially disposed around the wire 20 corresponding to where the wire 20 extends radially outward and is thickened. The first clampable members 30 should be made of a material that is soft enough not to damage human tissues around the implanted site, and smooth transition can be further formed at the junctions of different surfaces of the first clampable members 30 by means of rounding off or the like to avoid sharp portions; meanwhile, the first clampable member 30 is made of a material having sufficient strength to maintain its inherent shape or deform a small amount, so as to support the clamping of the surgical tool, and further drive the electrode plate 10 at the front portion of the wire 20 to move and adjust to the cochlear nucleus to be monitored. The shape, size and material of the first clampable member 30 may be adjusted accordingly, so as to meet the above requirements as much as possible.
Preferably, the first grippable member 30 is disc-shaped with the wire 20 passing therethrough (fig. 4); the junction of the radial and circumferential surfaces of the disc may be further smoothly transitioned by rounding. The diameter c of the disc is greater than the diameter b of the wire 20; in various examples, the diameter c of the disk may be less than, equal to, or greater than the width a of the electrode sheet 10; the axial length d of the disc can be set as required to facilitate the clamping of surgical tools. Alternatively, in some examples, the first clampable members 30 may not be symmetrically arranged centered on the wire 20 for ease of clamping and intraoperative manipulation; for example, the thickness e1 of the first grippable member 30 on one side of the wire 20 may be greater than the thickness e2 on the other side of the wire 20.
The electrode plate 10 is fixed with a body of a plurality of first test electrodes 11, which is usually transparent, so that the human tissues and the like behind the electrode plate can be observed through the body in the operation. The exposed surface of the first test electrode 11 is referred to as the front surface of the electrode sheet 10, and is usually required to be attached to the monitored part; then, in order to facilitate rapid intraoperative distinction between the front and back sides of the electrode sheet 10, in the preferred example shown in fig. 2, the upper body half 12 and the lower body half 13 of the electrode sheet 10 are provided in different colors (and still have sufficient transparency). For example, if the upper half 12 of the body is red and the lower half 13 thereof is blue, and such color sequence is associated with the front side of the electrode sheet 10 facing forward and the back side thereof facing backward, the corresponding color sequence can be observed during the operation, and if the current sequence is found to be upper blue and lower red which is not in accordance with the setting, the body needs to be turned over for use. In this way, the left half part and the right half part of the body can be set to different colors, the inherent color sequence (such as left red, right blue) corresponds to the state that the front face of the electrode plate 10 faces forward, and if the color sequence observed in the operation is opposite, the electrode plate 10 is turned over. Therefore, the utility model discloses can utilize different colours to carry out the sign, assist and differentiate the electrode orientation.
With the progress of the process, the electrode plate 10 can be made small to fit a small operating space at the cochlear nucleus. The volume of the electrode sheet 10 can be further reduced by appropriately reducing the number of the first test electrodes 11 on the body. Illustratively, 1 to 4 first test electrodes 11 are provided on the body of the electrode sheet 10.
As shown in fig. 3, the present invention can also satisfy different monitoring requirements by adding one or more movable electrodes 40 as a supplement to the first test electrode 11 on the body. Providing a lead from the wire 20, such as near the first grippable member 30; one end of the lead is connected to a second test electrode to form the movable electrode 40. The second test electrode and the first test electrode 11 at the electrode sheet 10 may be the same or different kinds of electrodes.
For example, the first clampable member 30 may be provided with a passage for a lead to pass through, so as to set an initial lead-out angle for the movable electrode 40. A second clampable member 41 may be further disposed on the lead of the movable electrode 40 to facilitate the operation during the operation.
The lead of the movable electrode 40 may be one of the wires, merging with the other wires 20 extending from the tail of the electrode pad 10; alternatively, the movable electrode 40 may be combined with the electrode sheet 10 as required, for example, an electrical connector is provided at the first clampable member 30 to connect one of the wires 20 to the inner side, and an electrical connector is provided to match the other end of the outer connecting lead, so as to insert and extract the movable electrode 40 at any time.
The lead 20 extending from the tail of the electrode pad 10 can obtain the electrical stimulation signal from the stimulation device in a wired or wireless manner, and then correspondingly transmit the electrical stimulation signal to the first test electrode 11 (and the second test electrode on the movable electrode 40) on the electrode pad 10. The ends of the leads 20 are directly connected to the stimulation device; alternatively, the end of the lead 20 is connected to a signal receiving element which cooperates with a signal transmitting element at the stimulation device to obtain the electrical stimulation signal.
In summary, the electrode plate 10 of the cochlear recording electrode provided by the utility model has a small overall volume, and the movable electrode 40 with additional movement is added; the electrode plate 10 body adopts different color marks to assist in distinguishing the orientation of the electrode; the first clamping part 30 is arranged, so that the clamping operation is convenient; the utility model discloses can reduce the damage to implanting the position, implant scene such as operation and nerve guardianship and use at the sense of hearing brainstem, realize monitoring eABR, eCAP etc. simultaneously, application scope is extensive.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (9)
1. A cochlear recording electrode, comprising:
the electrode plate is provided with a body and a plurality of first test electrodes distributed on the same surface of the body;
the lead is arranged in the body in a penetrating way, is correspondingly connected with the first test electrode and extends out of the body from the tail part of the electrode plate to obtain an electrical stimulation signal;
and the first clamping component is arranged on the lead extending from the tail part of the electrode plate.
2. The cochlear recording electrode of claim 1,
further comprising one or more movable electrodes;
each movable electrode is provided with a lead wire for transmitting an electrical stimulation signal, one end of the lead wire is connected with a second test electrode, and the other end of the lead wire is arranged at a lead wire extending from the tail of the electrode plate;
a second grippable member is disposed on a lead of the movable electrode.
3. The cochlear recording electrode of claim 2,
and a channel for the lead of the movable electrode to pass through is formed in the first clamping part.
4. The cochlear recording electrode of claim 1 or 2,
the body of the electrode sheet comprises a plurality of parts; each portion having a different color and sufficient transparency; the first position sequence of the parts corresponds to the first sequence combination of different colors and corresponds to the front state of the electrode plate; and the second position sequence of the plurality of parts corresponds to the second sequence combination of different colors and corresponds to the back state of the electrode plate.
5. The cochlear recording electrode of claim 4,
the multiple parts of the body are an upper half part and a lower half part with different colors;
alternatively, the plurality of portions of the body are left and right halves having different colors.
6. The cochlear recording electrode of claim 1 or 2,
the lead extending from the tail of the electrode plate is connected to a stimulation device for providing an electrical stimulation signal;
or a lead extending from the tail of the electrode plate is connected with the signal receiving part; and the signal sending part of the stimulation device wirelessly transmits an electrical stimulation signal to the signal receiving part.
7. The cochlear recording electrode of claim 1,
the clampable members are arranged around the circumference of the lead;
the wire passes through the center of the grippable member or passes through the grippable member from an off-center location.
8. The cochlear recording electrode of claim 1,
the grippable member is a disk.
9. The cochlear recording electrode of claim 1,
the electrode plate body is provided with 1-4 first test electrodes.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921139630.1U CN210698495U (en) | 2019-07-19 | 2019-07-19 | Snail nucleus recording electrode |
| US17/618,507 US20220233358A1 (en) | 2019-06-13 | 2020-06-12 | Electrophysiological test method for auditory brainstem implant and recording electrode used by method |
| PCT/CN2020/095774 WO2020249069A1 (en) | 2019-06-13 | 2020-06-12 | Electrophysiological test method for auditory brainstem implant and recording electrode used by method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921139630.1U CN210698495U (en) | 2019-07-19 | 2019-07-19 | Snail nucleus recording electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210698495U true CN210698495U (en) | 2020-06-09 |
Family
ID=70924321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921139630.1U Active CN210698495U (en) | 2019-06-13 | 2019-07-19 | Snail nucleus recording electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210698495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020249069A1 (en) * | 2019-06-13 | 2020-12-17 | 上海交通大学医学院附属第九人民医院 | Electrophysiological test method for auditory brainstem implant and recording electrode used by method |
| CN115842098A (en) * | 2022-08-05 | 2023-03-24 | 宁德时代新能源科技股份有限公司 | Pole piece, battery monomer, battery, electric device and pole piece manufacturing device |
-
2019
- 2019-07-19 CN CN201921139630.1U patent/CN210698495U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020249069A1 (en) * | 2019-06-13 | 2020-12-17 | 上海交通大学医学院附属第九人民医院 | Electrophysiological test method for auditory brainstem implant and recording electrode used by method |
| CN115842098A (en) * | 2022-08-05 | 2023-03-24 | 宁德时代新能源科技股份有限公司 | Pole piece, battery monomer, battery, electric device and pole piece manufacturing device |
| CN115842098B (en) * | 2022-08-05 | 2024-01-09 | 宁德时代新能源科技股份有限公司 | Pole piece, battery monomer, battery and electricity utilization device and pole piece manufacturing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2827947B1 (en) | Electro-acoustic stimulation systems that perform predetermined actions in accordance with evoked responses | |
| Sharma et al. | P1 latency as a biomarker for central auditory development in children with hearing impairment | |
| US8965529B2 (en) | Devices with cannula and electrode lead for brain stimulation and methods of use and manufacture | |
| US6321125B1 (en) | Cochlear electrode system including distally attached flexible positioner | |
| CN210698495U (en) | Snail nucleus recording electrode | |
| CA1292285C (en) | External ear canal electrode to be placed proximate the tympanic membrane and method of stimulating/recording utilizing external ear canal electrode placed proximate the tympanic membrane | |
| US9079012B2 (en) | Methods for securing electrode leads | |
| EP1114613A3 (en) | Hearing evaluation device with patient connection evaluation capabilities | |
| Leake et al. | Consequences of chronic extracochlear electrical stimulation in neonatally deafened cats | |
| US8126572B2 (en) | Cochlear implant electrode with adjustable subdivision for middle ear functions | |
| US6498954B1 (en) | Apex to base cochlear implant electrode | |
| US10058699B2 (en) | Implantable leads with flag extensions | |
| Liang et al. | The nerve-electrode interface of the cochlear implant: current spread | |
| Wang et al. | Earlier and later components of tone burst evoked myogenic potentials | |
| US11931576B2 (en) | Systems and methods for measuring evoked responses from a brain of a patient | |
| CN111050844B (en) | Systems and methods for facilitating alignment of cochlear implant system components | |
| US20210001128A1 (en) | Slotted Stiffening Member for Facilitating an Insertion of an Electrode Lead into a Cochlea of a Patient | |
| Chouard et al. | Auditory brainstem potentials in man evoked by electrical stimulation of the round window | |
| WO2014107446A1 (en) | Eeg data collection intrabuccal method and apparatus | |
| CN108883274B (en) | System and method for determining behavioral audiogram values using evoked responses | |
| Merzenich et al. | Cochlear implant prostheses: Strategies and progress | |
| US9474546B1 (en) | Pre-curved electrode array insertion tools | |
| US8954169B2 (en) | Systems and methods for loading a pre-curved electrode array onto a straightening member | |
| Nodal et al. | Chronic detachable headphones for acoustic stimulation in freely moving animals | |
| AU2021107212A4 (en) | Electrophysiological test method for auditory brainstem implant and recording electrode used by method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Hansheng Medical Technology Co.,Ltd. Assignor: SHANGHAI NINTH PEOPLE'S HOSPITAL SHANGHAI JIAOTONG University SCHOOL OF MEDICINE Contract record no.: X2022310000034 Denomination of utility model: A recording electrode for cochlear nucleus Granted publication date: 20200609 License type: Exclusive License Record date: 20220706 |