Cochlear Implant Headpiece Alignment Using Back Telemetry Feedback

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Solution Overview

Problem

Cochlear implant systems face challenges in aligning external and internal components, particularly during surgical procedures where visual verification and magnetic alignment are obstructed or ineffective, leading to difficulties in achieving optimal alignment for effective operation.

Innovation Solution

A cochlear implant alignment system that includes a component alignment presentation system, which uses a wireless back telemetry signal to indicate the degree of alignment between the headpiece and the cochlear implant, allowing for real-time feedback and adjustment to ensure optimal alignment without the need for visual verification or strong magnetic forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If visual verification or magnetic alignment facilitators are used to align external and internal cochlear implant components, then alignment accuracy is improved, but the system becomes ineffective when obstructions (bandages, surgical drapes) are present

Engineering Contradiction:

Improvealignment accuracyVSAvoideffectiveness in obstructed environments

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent replaces mechanical alignment facilitators (magnets, visual markers) with an electromagnetic field-based solution. The system uses electromagnetic coupling between the external headpiece and internal cochlear implant to detect alignment status, allowing operation through obstructions that would block visual and magnetic methods.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces electromagnetic coupling as an intermediary mechanism between the external and internal components. This intermediary allows alignment detection to occur through the skin and obstructions without requiring direct visual or magnetic contact, solving the problem of effectiveness in obstructed environments.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If magnets are attached to external and internal components to facilitate alignment, then alignment is easier to achieve, but magnetic attraction is blunted by obstructions such as bandages and surgical drapes

Engineering Contradiction:

Improvealignment easeVSAvoidmagnetic blunting by obstructions

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent substitutes magnetic alignment mechanisms with electromagnetic coupling detection. Instead of relying on magnetic attraction forces that are blocked by obstructions, the system uses electromagnetic field interaction to detect alignment status, maintaining ease of operation while penetrating obstructions.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If a transcutaneous wireless link is used for communication between external and internal components, then power and data transmission is achieved, but alignment precision is difficult to verify

Engineering Contradiction:

Improvepower and data transmission efficiencyVSAvoidalignment verification precision

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The patent implements feedback by using the wireless communication link itself to detect alignment status. The system monitors the strength and quality of the electromagnetic coupling between external and internal components, providing real-time feedback on alignment precision that enables precise verification and adjustment.

Inventive Principle:

Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system facilitates high-degree alignment of cochlear implant components, ensuring reliable and power-efficient operation, even in obstructed environments, without requiring additional circuitry or increased power consumption.

Implementation Method 1

communication between the external and internal components is commonly carried over a transcutaneous wireless link

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

magnetic and other such alignment facilitators

Methodology Applied

Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS20250010074A1Systems and methods for facilitating alignment of cochlear implant system components

Publication Date: 2025.01.09 ADVANCED BIONICS AG

AI summary

A cochlear implant alignment system includes a sound processor configured to generate, based on a signal strength of a wireless back telemetry signal generated by a cochlear implant implanted within a recipient, a Received Signal Strength Indicator (RSSI) signal and at least one physical computing device configured to: receive the RSSI signal from the sound processor, and present, based on the RSSI signal received from the sound processor, an alignment indication to assist a user in aligning a headpiece with the cochlear implant, the alignment indication visually or audibly indicating a threshold degree of alignment and a plurality of additional degrees of alignment of the headpiece with the cochlear implant, wherein the threshold degree of alignment is sufficient to achieve a communication lock between the headpiece and the cochlear implant and wherein the plurality of additional degrees of alignment are each too poor to achieve the communication lock.