Ossicular Prosthesis With Controllable Stapes Conforming

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Solution Overview

Problem

Existing ossicular replacement prostheses lack controllability and adaptability to conform to the stapedial structure, leading to potential dislocation and suboptimal sound conduction in ossiculoplasty procedures.

Innovation Solution

A partial ossicular replacement prosthesis with a controllable stapedial engaging function, featuring a stapedial part with an elongated interior lumen and protruding elements, allowing for adjustable conforming to the stapes through a plunger-operated applicator device, enabling divergent and convergent configurations for precise fitting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing ossicular replacement prostheses are used, then the basic sound conduction function is provided, but the prosthesis lacks controllability and adaptability to conform to the stapedial structure, leading to potential dislocation and suboptimal sound conduction

Engineering Contradiction:

Improveadaptability to conform to stapedial structureVSAvoidprosthesis structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The prosthesis incorporates a deformable body capable of retaining different shapes, transitioning from a compressed delivery configuration to an expanded functional configuration. The wall includes deformable portions with slots that allow the body to be reshaped from a compact form during implantation to an expanded form that grasps the stapes, providing adaptability without permanent complexity

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The prosthesis utilizes material property changes to achieve adaptability. The deformable material allows the body to be compressed into a narrow profile for delivery, then expanded and reshaped to conform to the stapedial structure. This parameter change in shape and volume enables the prosthesis to adapt to different stapes geometries

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the prosthesis is designed with fixed shape, then manufacturing is simplified, but the prosthesis cannot controllably conform to the distal portion of stapes, resulting in dislocation risks

Engineering Contradiction:

Improvestability of prosthesis to stapesVSAvoidcontrollability during implantation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The prosthesis transitions from a static compressed state during delivery to a dynamic expanded state during implantation. The deformable wall with slots allows the body to be reshaped in response to surgical manipulation, enabling the structured elements to spread apart during delivery and then conform to the stapes after implantation, ensuring stability

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The applicator device serves as an intermediary tool that manipulates the prosthesis through the deformable wall structure. The applicator engages with the body through the slots to compress and position the prosthesis, then releases it to allow spontaneous expansion and conforming to the stapes, bridging the gap between controlled delivery and autonomous adaptation

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the prosthesis uses deformable material with slots for reshaping, then adaptability to stapes is improved, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:

Improvecontrollable conforming functionVSAvoidmanufacturing of deformable structure

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The prosthesis body is segmented into structured elements separated by slots in the wall. This segmentation allows each element to move independently during deformation, enabling the body to be compressed into a narrow profile and then expanded into various shapes. The segmented structure simplifies manufacturing by allowing modular assembly and standardization of the deformable components

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12564488B2Ossicular replacement prothesis with controllable stapedial conforming function, manufacture method thereof and applicator device therefor

Publication Date: 2026.03.03 J N MEDICAL

AI summary

A system for partial ossicular replacement with controllable stapedial engaging function is described; a respective process of manufacturing a partial ossicular replacement prosthesis with controllable stapedial engaging function and a partial ossicular replacement prosthesis are further described; the system comprises: a partial ossicular replacement prosthesis comprising a stapedial part and a tympanic part, an applicator device comprising a handpiece, an essentially planar static face, an elongated essentially cylindrically shaped plunger; the process comprises: providing a preform of at least stapedial part, forming a plurality of elongated cuts, shaping a centrical portion, shaping a distal portion; the partial ossicular replacement prosthesis comprises a stapedial part and a tympanic part.