102 results about "Cochlear prosthesis" patented technology

The invention discloses an artificial cochlea implantation automatic path planning method based on multi-objective optimization, and relates to the technical field of medicine, and the method comprises the steps: S1, key structure segmentation; s2, generating a candidate path; s3, performing path evaluation; and S4, solving an optimization problem: solving a multi-objective optimization problem by using a genetic algorithm, defining a fitness function and integrating a plurality of objectives, the optimization objectives including minimizing path length, minimizing deviation with an ideal bone surface angle, minimizing bone grinding distance and maximizing the shortest distance with a key structure. According to the artificial cochlea implantation automatic path planning method based on multi-objective optimization, a key anatomical structure is segmented through deep learning, a candidate path set from mastoid to a niche is generated, a multi-objective optimization problem is solved by using a genetic algorithm, and an optimal path meeting clinical constraints is selected. When the method is applied to preoperative planning of an artificial cochlea implantation operation, the safety and accuracy of the operation can be remarkably improved.

The invention discloses a cochlea volute tube helix automatic extraction method based on a temporal bone CT image, and belongs to the technical field of medical image processing. Through cochlea segmentation, cochlea tube helix extraction and cochlea tube helix nonlinear fitting, full-automatic analysis of the cochlea tube helix is achieved, the problems that traditional cochlea measurement is low in efficiency and large in error are solved, a high-precision anatomical evaluation tool is provided for artificial cochlea implantation, and the cochlea tube helix extraction method is suitable for cochlea implantation. The clinical practicability and scientific research value are realized.

1. Name of the product in this design: Behind-the-ear speech processor for cochlear implants. 2. Purpose of this design: to receive and process sound signals and convert them into electrical signals that can stimulate the auditory nerve, enabling hearing-impaired patients to regain hearing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

Disclosed herein are of systems, methods, and computer-program products for determining if a response is an electrically evoked compound action potential (eCAP), refining raw data of an eCAP amplitude growth function (AGF) and utilizing maximum (i.e., steepest) slope from moving linear regression to effectively estimate cochlear nerve function, and determining quality of an electrode-neuron interface (ENI) using a model developed from eCAP attributes.

1. Name of the product in this design: Cochlear Implant Wire (Harmony). 2. Purpose of this design: 1. For connecting the processor and external unit of a cochlear implant. 2. Used for data transmission. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of this design product: Cochlear Implant Microphone Protective Cover. 2. Purpose of this design: For dust and moisture protection of cochlear implant microphones. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. The name of the design product: artificial cochlea silicone sleeve. 2. The use of the design product: for artificial cochlea silicone sleeve. 3. The design features of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design features: perspective view.

This invention provides a circuit and method for sampling and transmitting telemetry data from a cochlear implant, belonging to the field of telemetry technology for cochlear implants. The method amplifies the analog signal under test using a programmable gain amplifier, converts the signal into a pulse width signal using a voltage ramp generator and comparator, and then generates a short-duration step signal on the coil via an output driver to form a ringing pattern. An external device detects the interval between the step signals to reconstruct the signal magnitude. This invention eliminates the need for an analog-to-digital converter, significantly reducing power consumption and chip area, and improving data transmission efficiency. It is suitable for telemetry systems in various implantable medical devices such as cochlear implants. This invention significantly reduces the power consumption and layout area of ​​the implanted chip and shortens the single data transmission time to 48μs, improving efficiency by approximately 10 times, making it suitable for low-power implantable devices such as cochlear implants.

In a light guide (1) for an optical cochlear implant, comprising a flexible substrate (3) elongated in a principal direction (2) from a proximal end to a distal end and comprising at least one light-guiding core (4) arranged on the substrate (3), extending in the principal direction (2) from an input end (19) at the proximal end of the substrate (3) over more than 50% of the length of the substrate (3) and terminating with its output end (5) in front of the distal end of the substrate (3), an input optic (18), which couples incident light in the principal direction (2) into the at least one light-guiding core (4), is formed as a single-piece continuous optical body onto the input end (19) of the at least one light-guiding core (4) and the substrate (3) in such a way thatthat the at least one light-guiding core (4) terminates with its coupling end (19) within the coupling optics (18) and is embedded in the coupling optics (18) for at least a minimum length along the principal direction (2), and / or an output coupling optics (6), which deflects light exiting from the output end (5) into a first transverse direction perpendicular to the principal direction (2), is formed as a single, continuous optical body onto the output end (5) of the at least one light-guiding core (4) and the substrate (3) such that the at least one light-guiding core (4) terminates with its coupling end (5) within the output coupling optics (6) and is embedded in the output coupling optics (6) for at least a minimum length along the principal direction (2). The minimum length is equal to the height of the core (4) above the substrate (3).

The utility model relates to a novel receiving coil doubling device, which comprises a main shaft, a limit cover and a doubling plate, one end of the main shaft is combined with the doubling plate, a plurality of first screw holes are arranged on the side surface of the doubling plate at equal intervals, a plurality of threading holes are arranged on one surface of the doubling plate vertical to the main shaft in a manner of equally dividing the circumference, and a plurality of second screw holes are arranged on the other surface of the doubling plate. The number and the positions of the threading holes are matched with those of the first screw holes; the limiting cover and the doubling plate are oppositely arranged, and the limiting cover is fixedly connected with the main shaft; an alloy wire to be doubled passes through the doubling disc through the threading hole to reach the limiting cover, and the main shaft, the alloy wire to be doubled and the doubling disc are fixed through screwing of a fastening screw and the first screw hole. Compared with the prior art, the electrical performance of the artificial cochlea implant can be ensured, and the qualified rate of products is improved.

The invention belongs to the technical field of flap retraction, and particularly relates to a flap retraction device for artificial cochlea electrode implantation surgery, which comprises a top plate, electric telescopic rods are fixedly connected to the two sides of the bottom wall, movable boxes are symmetrically and slidably connected to the bottom wall of the top plate, and guide rods are slidably connected to the bottom walls of the movable boxes in a linear array; the guide rod is hollow, the hollow part of the guide rod is communicated with the hollow part of the moving box, and the bottom end of the guide rod is coaxially and fixedly communicated with a connecting seat; the bottom wall of the suction cup is completely attached to the skin of a patient, the problem that local skin is bruised due to untight attachment in traditional rigid traction is avoided, the suction cup automatically adsorbs the skin and retracts the skin, when the skin is stretched to the limit, transverse traction is stopped, longitudinal lifting is conducted, and through linkage of a touch switch and a touch switch, the skin can be automatically pulled out. Excessive skin stretching caused by traditional traction is avoided, transverse and longitudinal two-dimensional traction is achieved, and a deep operation area is fully exposed.

The invention relates to an artificial cochlea main electrode electrical performance test device. The device comprises a flexible test pen (1); the first multi-throw change-over switch (2) is respectively connected with each electrode ring (4) of the artificial cochlea main electrode (3) to be tested; the load resistance circuit is respectively connected with the first multi-throw change-over switch (2) and a power supply; and the conversion and display circuit is connected with the load resistance circuit and enables the flexible test pen (1) to be in contact with an electrode ring to be tested in the test process, the power supply, the load resistance circuit, the first multi-throw change-over switch (2), the flexible test pen (1), the electrode ring to be tested and the conversion and display circuit form a loop, and a test result is displayed on the conversion and display circuit. Compared with the prior art, the device has the advantages of convenience in testing, low damage probability of the electrode ring, convenience in load resistor switching and the like.

A patient-specific frequency mapping procedure, a fitting system for carrying out said procedure and computer program product for a cochlear implant or an electric-acoustic stimulation device having an electrode array that has been implanted into the cochlea of said patient is disclosed.

1. The name of the design product: artificial cochlea all-in-one machine. 2. The use of the design product: for speech processing and signal energy transmission of the external part of the artificial cochlea, controlling the communication between the external machine and the implanted part. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. The name of the design product: artificial cochlea integrated machine protective sleeve (Rondo2 cartoon version). 2. The use of the design product: for artificial cochlea integrated machine, protecting artificial cochlea. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

A cochlear hearing aid system for providing electrical stimulation to auditory nerve fibers of a cochlea of a recipient of the cochlear hearing aid system is disclosed. The cochlear hearing aid system comprises a microphone configured to receive an acoustical signal and provide an audio signal based on the acoustical signal; a signal processor unit configured to receive the audio signal and process the audio signal; an electrode lead including a plurality of electrodes configured to stimulate the auditory nerve fibers based on the processed audio signal, wherein the electrode lead comprises: an electrode carrier maintaining the electrode contacts and wires, wherein the electrode carrier is made of silicone and is loaded by dexamethasone; a first layer (or sub-layers) of gelatin which is coated and chemically cross-linked selectively on a silicone outer surface of the electrode lead, wherein dexamethasone sodium phosphate is embedded in the first layer (or sub-layers); and a second layer of gelatin which is coated and physically cross-linked onto the first layer.

The utility model provides an artificial cochlea extracorporeal machine connection structure and artificial cochlea, including connector, the connector includes connector female seat and connector male head, connector female seat first end and connector male head first end plug-in connection, connector male head first end plug-in connection, connector male head first end plug-in connection, connector female seat second end plug-in connection, connector male head second end plug-in connection, connector male head second end plug-in connection. The connector female seat and the connector male head can be electrically conducted after being connected; the transmitting coil is electrically connected with the connector female seat; a transmitting cable, wherein the transmitting cable is electrically connected with the connector male head; and a housing, wherein the connector female seat and the transmitting coil are arranged in the housing. The problem that in the prior art, an integrated artificial cochlea in-vitro machine is high in maintenance cost is solved.

1. The name of the design product: cochlear implant template. 2. The use of the design product: used for checking the shape of the hole and the position of the implant in the cochlear implant surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

Cochlear implant systems can include a cochlear electrode and a stimulator in electrical communication with the cochlear electrode. The stimulator can be in communication with a controller, which is in communication with a testing circuit and a switching network. The stimulator can include a plurality of source elements. The controller can control the switching network to place the plurality of source elements into communication with the testing circuit. The controller can further cause one of the plurality of source elements to emit an electrical current and can determine an amount of electrical current emitted from the source element using the testing circuit. The controller can compare the determined amount of electrical current emitted by the source element with a prescribed current. The controller can adjust the output of each of the plurality of source elements based on the determined amount of electrical current emitted by the stimulator.

This application discloses a personalized rehabilitation system for cochlear implant surgery based on multimodal data fusion, belonging to the field of rehabilitation equipment technology. The system includes: a data acquisition and processing module for acquiring the original electrically evoked compound action potential (EEP) signals of the test subject and generating a neural response feature vector based on the original EEP signals; a personalized parameter mapping module for generating the test subject's subjective comfort threshold for the maximum electrical stimulation level based on the neural response feature vector and the test subject's clinical data; adjusting the subjective comfort threshold based on real-time biofeedback signals; and a rehabilitation training module for constructing a VR training scenario, electrically stimulating the test subject's cochlea according to the subjective comfort threshold, and acquiring the test subject's real-time biofeedback signals in the VR training scenario. This application effectively applies objective original EEP signals to personalized parameter mapping of the cochlear implant, reducing reliance on the test subject's subjective feedback and improving the accuracy and efficiency of mapping.

This invention provides a portable NRD neural response signal generator, comprising: a shell, a display screen, a microcontroller control circuit board, side control buttons, and an input / output connector; the display screen shows the current amplitude of the neural response signal, the output status of the neural response signal, and the battery level; the microcontroller control circuit board acquires the output voltage signal of the electrodes of the cochlear implant and outputs a corresponding simulated neural response signal based on the output voltage signal; the side control buttons are used for power-on operation and selection and confirmation of the neural response signal waveform; the input / output connector is used for programming, battery charging, and signal output. This invention provides equipment support for verifying the accuracy of measuring neural response signals in cochlear implants, solving the problems of high signal interference and insufficient amplitude in existing general-purpose telemetry equipment for measuring neural responses; the waveform shape can be customized, the minimum output waveform amplitude reaches ±50μV, and the waveform is stable and free from external interference.

The utility model relates to an artificial cochlea implant receiving coil pin length control device which comprises a base, a limiting assembly and a cutting assembly. Wherein the base comprises a first step face and a second step face, the horizontal height of the first step face is larger than that of the second step face, and the limiting assembly is located at the end, close to the second step face, of the first step face; the first step surface is provided with a groove attached to the outer contour of the receiving coil, and when the receiving coil is placed in the groove, the pin of the receiving coil points to the direction of the second step surface and is pressed by the limiting assembly; the cutting assembly is arranged on the second step face and used for cutting off the pins, exceeding the first step face, of the receiving coil. Compared with the prior art, the pin length of the receiving coil can be more conveniently controlled, and the product performance is further guaranteed.

An exemplary system comprises a memory that stores instructions and a processor communicatively coupled to the memory and configured to execute the instructions to perform a process. The process may comprise accessing an individual three-dimensional (“3D”) cochlea model of a cochlea of a recipient of a cochlear implant system that includes a stimulating lead inserted into the cochlea during a lead insertion procedure, generating, based on the individual 3D cochlea model and procedure data associated with one or more lead insertion procedures performed with respect to one or more other recipients, an individualized drug delivery profile for the recipient, and transmitting a command to the cochlear implant system to cause release of a drug from the stimulating lead in accordance with the individualized drug delivery profile.

This invention discloses a drilling path planning method, storage medium, and device for cochlear implantation, belonging to the field of path planning technology in cochlear implantation. This invention solves the problems of low efficiency and easy introduction of path deviation in existing path planning methods. The invention preprocesses preoperative three-dimensional CT images and integrates anatomical structural models to extract three-dimensional spatial geometric information of key tissues within the temporal bone, including the facial nerve and cochlea. Subsequently, combined with prior medical knowledge, the drilling path for the cochlear implant electrode is automatically planned in three-dimensional space to minimize damage to key nerves and ensure surgical safety. The path planning method of this invention is applicable to cochlear implantation surgery assisted by medical robots, significantly reducing reliance on the doctor's subjective judgment, improving the individualized adaptability and efficiency of path design, and effectively avoiding path deviation caused by human subjective judgment. This invention can be applied to path planning in cochlear implantation surgery.

The present disclosure discloses a method for improving an effective dynamic range including acquiring a hearing profile of a user, setting a section between a T level and a C level as a target range of a stimulation current for each of a plurality of electrodes included in an electrode array of a cochlear implant system based on the hearing profile, and mapping a plurality of current levels to an output current within the target range.

The invention relates to the technical field of biomedical engineering. A middle ear fully-implanted artificial cochlea comprises a sensing part and a stimulating electrode part, and the sensing part is directly connected with the stimulating electrode part. The sensing part comprises a supporting layer, and the supporting layer is made of silicon or silicon dioxide; the sensing part further comprises piezoelectric units fixed on the supporting layer, and each piezoelectric unit comprises an upper electrode layer, a piezoelectric sensing layer made of a piezoelectric material and a lower electrode layer which are stacked in the thickness direction; the resonant frequencies of the piezoelectric units are different; the stimulating electrode part comprises platinum electrode contacts which are arranged in one-to-one correspondence with the piezoelectric units, and the platinum electrode contacts are connected with the piezoelectric units through platinum wires; the stimulating electrode part further comprises an insulating sleeve connected with the supporting layer, and the platinum electrode contacts are sequentially arranged in the length direction of the insulating sleeve. A signal processing circuit between a traditional sensing part and a stimulating electrode part is omitted, meanwhile, external power supply and an active circuit are not needed, and sound-electricity conversion is achieved purely depending on the piezoelectric effect.

1. Name of the product in this design: Cochlear Implant Wire (Opus 2 D). 2. Purpose of this design: 1. For connecting the processor and external unit of a cochlear implant. 2. Used for data transmission. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of artificial cochlea implants, in particular to a monitoring system for reliability tests of artificial cochlea implants, which comprises a water tank, a heating rod, a plurality of temperature acquisition terminals, a router and an intelligent display terminal. The temperature acquisition terminal comprises a main control chip, a temperature sensor, a thermocouple connection circuit and an output converter, the temperature sensor is used for acquiring the water temperature in the water tank and is connected with the output converter through the thermocouple connection circuit, the output converter is in signal connection with the main control chip, and the main control chip is connected with the thermocouple connection circuit through the thermocouple connection circuit. And the main control chip is in signal connection with the intelligent display terminal through the router.

This invention discloses a cochlear implant drug delivery device, including a drug delivery power mechanism for transporting drug solution through a microcatheter and a drug delivery channel to a drug release port. The drug delivery power mechanism includes an external control component and an internal delivery component disposed on the microcatheter. The external control component includes a first magnetic roller portion, and the internal delivery component includes a second magnetic roller portion for magnetic coupling with the first magnetic roller portion. The second magnetic roller portion controls the quantitative delivery of drug solution from the microcatheter to the drug delivery channel by rotation. When the second magnetic roller portion is magnetically coupled with the first magnetic roller portion, the second magnetic roller portion rotates accordingly based on the rotation angle of the first magnetic roller portion. The cochlear implant drug delivery device of this invention can quantitatively deliver drug solution to the drug release port from outside the body, has a simple structure, is easy to implement, requires no surgical implantation or replacement, and precisely controls the drug delivery.

A cochlear implant binaural control system, comprising a remote control device and two speech processors, wherein the remote control device is separately connected to the two speech processors by means of BLE and is configured to send control signals to the two speech processors; when one of the speech processors is connected to an audio source, an audio signal from the audio source is transmitted to the speech processor, and the speech processor establishes an radio frequency connection with the other speech processor and transmits the audio signal to the other speech processor. The one remote control device of the cochlear implant binaural control system can simultaneously control the two speech processors on both sides. This not only reduces costs but also facilitates the implantee to control both processors simultaneously, avoiding the need to carry or operate two remote control devices. The implantee's bilateral processors can receive audio from a unified audio source, thereby enabling stereophonic hearing and providing a better listening experience.