169 results about "Cochlear prosthesis" patented technology

The invention provides an artificial cochlea which comprises an implant and an extracorporeal machine, the implant and the extracorporeal machine both adopt a magnet-free design, the extracorporeal machine is configured to receive a sound signal and transmit the sound signal to the implant after first processing, the implant is configured to perform second processing on the sound signal after first processing, and the implant is configured to perform second processing on the sound signal after second processing. The auditory neuron is stimulated by implanting an electrode; the in-vitro machine comprises an electrode array, the electrode array comprises a base and a plurality of electrode assemblies, and the electrode assemblies are inserted into a target scalp area in a semi-intrusive mode so that at least part of the in-vitro machine can be fixed to the target scalp area; wherein the implant is arranged on the inner side of the target scalp area, and the extracorporeal machine is arranged on the outer side of the target scalp area. And due to the non-magnet design, the artificial cochlea can improve the use experience of the user.

The invention relates to the field of medical instruments, in particular to a minimally invasive implantation device, a computer program product and a calibration method.A propelling assembly is arranged in a shell of the implantation device, one end of a clamp is connected to the propelling assembly, and the other end of the clamp extends out of the shell to be used for clamping an implant; the propelling assembly is used for driving the clamp to extend or retract relative to the shell; the force sensor is mounted on the propelling assembly, is coupled with the clamp and is used for detecting the implantation force of the clamp; the controller is electrically connected with the propelling assembly and the force sensor. The controller can control the clamp to retreat when the implanting force detected by the force sensor is larger than a preset value. In the implanting process of the artificial cochlea electrode, when the implanting force is too large, the clamp of the implanting device drives the implanting piece to automatically return, the inner ear structure of a patient is prevented from being damaged, the risk that the inner ear is damaged due to the fact that hand control is not timely in the operation process is effectively avoided, and the operation efficiency and safety are improved.

The invention provides an artificial cochlea objective debugging method and system based on wide-spectrum natural sound evoked electroencephalography, and the method comprises the steps: collecting an auditory electroencephalogram of a tested person under the stimulation of wide-spectrum natural scale sound synthesized by a plurality of vocoders, and carrying out the preprocessing of the auditory electroencephalogram, and obtaining an auditory electroencephalogram data set; training the deep learning network model by using data in the auditory electroencephalogram data set to obtain a trained deep learning network model; the deep learning network model is provided with two convolution layers for extracting features including time frequency and channel information of an auditory electroencephalogram, and is provided with a full connection layer for classification to obtain scale sound sensing electroencephalogram decoding and prediction accuracy; and quantizing different vocoder algorithm performances according to the obtained scale sound sensing electroencephalogram decoding and prediction accuracy, and objectively debugging the artificial cochlea based on the quantized different vocoder algorithm performances.

An illustrative cochlear implant system includes a sound processor associated with a sound processor coil, a cochlear implant including a cochlear implant coil configured to form a transcutaneous narrowband inductive link with the sound processor coil when the cochlear implant is implanted within the recipient, and equalization circuitry integrated within the sound processor and configured to facilitate recovery, by the sound processor, of backward telemetry data from a backward telemetry signal transmitted by the cochlear implant by way of the transcutaneous narrowband inductive link.

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.

A cochlear including a cochlear lead, a housing including a magnet pocket and a magnet aperture, a magnet, located within the magnet pocket, having a top surface adjacent to the magnet aperture that defines a top magnet outer perimeter and a bottom surface adjacent to the bottom wall that defines a bottom magnet outer perimeter that is greater than the top magnet outer perimeter, an antenna within the housing, a stimulation processor within the housing.

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.

The present invention discloses a cochlear implant system based on neural feedback closed-loop control, comprising an external part and an implant part. The external part comprises a mobile power supply, an external signal processing unit and a transmission coil, and the implant part comprises a receiving coil, an implant processing unit and a stimulation sampling electrode. The external signal processing unit comprises an acoustic-electric and feedback control module, a power module, a hardware acceleration module, a sensor module, a radio frequency modulation module and a storage module. The acoustic-electric and feedback processing module comprises a sound processing module, an acoustic-electric mapping module, a stimulus input encoding module and a feedback output decoding module. The implant processing unit comprises a radio frequency demodulation module, an auditory nerve signal processing module and an interface module. The interface module comprises a stimulation trigger module and a neural telemetry module. The present invention simulates the control mechanism of the auditory system, controls the stimulus input part through the neural feedback output part, and forms a complete closed-loop control to protect and enhance the hearing experience in a noisy environment.

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.

An exemplary sound processor is configured to direct a cochlear implant to apply standard electrical stimulation representative of frequencies in an audio signal that are within an upper region to a cochlea of a first ear of a recipient by way of a plurality of electrodes in accordance with a frequency allocation table that maps frequencies in the upper region of the audible frequency range of the recipient to the plurality of electrodes, the upper region of the audible frequency range comprising frequencies above and including a cutoff frequency, and direct the cochlear implant to apply electrical stimulation representative of frequencies in the audio signal that are within a lower region of the audible frequency range to the cochlea of the first ear by way of a most apical electrode and one or more compensating electrodes included in the plurality of electrodes in accordance with an electrode stimulation configuration.

The invention relates to the field of neurosurgical implants, and more particularly to methods for developing, tuning and studying a transcutaneous interface. The present device for analyzing data transmitted via a transcutaneous interface in prosthetic systems is a hardware / software system capable of digitizing, processing, saving and analyzing data transmitted via a wireless transcutaneous interface between different parts (1, 3) of a prosthetic system, said hardware / software system consisting of a receiving coil (5), a forward telemetry signal extraction module (6), a back telemetry signal extraction module (7), and a microcontroller (8) with software that operates in stream recording mode and data extraction mode, said microcontroller being connected via a communication channel to a personal computer (9) with preinstalled software for saving, visualizing and analyzing received data. The technical result of the invention consists in reducing the time required to develop and tune a wireless transcutaneous interface of a prosthetic system by using a circuit of a forward telemetry receiver that demodulates an encoded digital signal, a back telemetry receiver circuit that demodulates a frequency-modulated signal, and software that permits the recording and analysis of forward and back telemetry data.

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.

The present invention discloses an automatic load detection and audio input source switching circuit, which includes a current detection unit, a switching unit, an audio amplifier, and a voltage converter. Among them, the switching unit is respectively connected to the current detection unit, the audio amplifier, and the voltage converter. The voltage converter outputs different voltages to supply power to the switching unit, the current detection unit, and the input source. The switching unit and the audio amplifier are also respectively connected to the DSP chip of the cochlear implant speech processor. The present invention can automatically detect the input source connected to the external device of the cochlear implant, and can automatically identify the FM receiver or the external direct audio input, without manual intervention, which greatly facilitates the users of cochlear implants. At the same time, low-power devices are adopted in the whole circuit, and only part of the circuit works when the whole circuit is in standby operation. After testing, the static power consumption of the whole circuit is less than 3 μA, which can extend the battery usage time.

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.

Electrical stimulation devices can be used to treat tinnitus. For example, tinnitus can be treated using implantable electrodes and stimulation devices for delivering electrical stimulation to a patient's cochlear region, such as the cochlear promontory. Intraosseous cochlear promontory electrode(s), endosteal electrode(s), subendosteal electrode(s), or short intracochlear electrode(s) (or a combination thereof), connected to a cochlear implant receiver / stimulator device, can provide a successful model for long-term treatment of tinnitus in a large number of patients. In some cases, patients can simply turn on the tinnitus implant when experiencing troublesome tinnitus and gain instant relief.

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 invention discloses an optical fully-implanted artificial cochlea, which comprises a laser transceiving unit, a sound signal processing unit, an electrode array unit, a dual-mode coil unit and a built-in battery, and is characterized in that the laser transceiving unit is implanted into a middle ear cavity, is used for transmitting and receiving laser signals and comprises a transmitting end and a receiving end, the transmitting end continuously transmits laser to a tympanic membrane, and the receiving end is used for receiving the laser signals; the tympanic membrane vibrates to modulate the optical signal; the receiving end carries out demodulation and signal extraction on the reflected light; the sound signal processing unit is implanted under the skin behind the ear and is used for extracting and coding the characteristics of sound signals; the electrode array unit is implanted into the cochlea, and sound signals are transmitted by electrically stimulating auditory nerve elements in the cochlea; the dual-mode coil unit is implanted under the skin behind the ear and is used for wireless transmission of external signals and wireless charging energy complementation. According to the invention, efficient and fidelity transmission and processing of sound are realized, so that the existing artificial cochlea technology is thoroughly innovated, and more natural and comfortable auditory experience is provided for hearing impairment patients.

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 present invention discloses an integrated external cochlear implant device. The main shell assembly includes a main shell, a spring pin, a debugging copper column, a waterproof ring, a light guide plate, a button, a fixing part, a waterproof pad, a microphone, a microphone cover, a fixing foam, a waterproof sound-permeable membrane, a D-shaped dustproof membrane, a microphone fixing part, a PCBA soft-rigid combination board, a PCB small board, and a double-hole soft board. The main shell is also provided with an X-axis buckle position, a Y-axis buckle position, and a Z-axis buckle position; the bottom shell assembly includes a bottom shell, a switch, a spring piece, and a waterproof groove. The waterproof groove is the buckled connection between the main shell assembly and the bottom shell assembly, and a waterproof fixing glue is also provided in the waterproof groove. The present invention combines the existing product with a three-in-one design and eliminates the use of precious metal titanium alloy, significantly reducing production, material, and maintenance costs, reducing volume and weight to make it more sophisticated, and effectively improving multiple technical quality indicators such as the product's waterproof effect, functional connection stability, and production efficiency.

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.

Cochlear implant systems can include a cochlear electrode, a stimulator in electrical communication with the cochlear electrode, a sensor configured to receive a stimulus signal and generate an input signal based on the received stimulus signal, and a signal processor in communication with the stimulator and the sensor. The signal processor can include an analog filtering stage configured to generate an analog filtered signal from a received input signal and a digital filtering stage configured to generate a digitally filtered signal from the analog filtered signal. The analog filtering stage and digital filtering stage can be used to normalize the frequency response of the digitally filtered signal with respect to the stimulus signal.

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.

A cochlear including a housing, an antenna, a stimulation processor operably connected to the antenna, and an electrode array, operably connected to the stimulation processor, including a flexible body defining a longitudinal axis, a proximal region and a distal region, a plurality of electrically conductive contacts on the flexible body, and at least one stiffener within the flexible body.

Disclosed is a method of selecting stimulations for a cochlear implant or an auditory implant. The method may include: capturing an acoustical signal; dividing the acoustical signal into a plurality of frequency bands; determining a mean acoustical energy for each frequency band; for each frequency band: comparing the mean acoustical energy with the mean acoustical energy determined for neighboring frequency bands; merging neighboring frequency bands having a difference between the mean acoustical energies that is less than an acoustical energy threshold value; selecting one or more types of stimulation to be applied to one or more locations in a cochlea or along an auditory nerve based on bandwidths of each frequency band. The one or more types of stimulation may be selected from: electrical stimulation, optical stimulation and opto-electrical stimulation, and the one or more locations in cochlea or along the auditory nerve may correspond to specific frequencies of the acoustical signal.