Flexible Implant Cap Reduces Edge Sharpness
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Solution Overview
Problem
Medical implants with sharp edges cause irritation to surrounding soft tissues during procedures, as existing devices do not effectively address the issue of reducing edge sharpness.
Innovation Solution
A cap design that couples to medical implants, featuring a shell with a cavity that flexes to receive the implant body, providing a curved outer surface and attachment mechanisms to secure the cap, thereby reducing the sharpness of the implant's edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cap with a flexible shell and cavity is used to receive the implant body, then the sharpness of implant edges is reduced and tissue irritation is minimized, but the device complexity increases
Solution Approach 1:
A cap is introduced as an intermediary component between the implant and the surrounding soft tissue. The cap's curved outer surface acts as a mediator that prevents direct contact between sharp implant edges and sensitive tissue structures such as nerves, blood vessels, and the dura, thereby reducing tissue irritation while maintaining the implant's functional integrity
Solution Approach 2:
The cap features a curved outer surface that replaces sharp angular edges with smooth rounded contours. This spherical geometry eliminates stress concentration points and prevents the implant from impinging on surrounding soft tissues, directly addressing the tissue irritation problem through geometric modification
2Adaptability or versatility
If the shell flexes to receive the implant body, then the cap adapts to the implant shape and secures it firmly, but the manufacturing precision requirements increase
Solution Approach 1:
The shell is designed with flexible properties that allow it to dynamically adapt its shape during the implantation process. The shell can flex and deform to conform to the specific geometry of different implant bodies, providing universal adaptability without requiring precise pre-matching of dimensions. This dynamic flexibility compensates for variations in implant geometry while maintaining secure attachment
3Reliability
If attachment mechanisms are added to secure the cap to the implant, then the cap remains firmly attached during use, but the device complexity increases
Solution Approach 1:
The attachment mechanisms are merged with the cap's existing structure rather than being added as separate components. The attachment features are integrated into the cap body itself, combining the functions of structural support and secure attachment in a single unified component, thereby maintaining reliability while minimizing the increase in overall device complexity
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 cap design effectively reduces the palpability and sharpness of medical implants, minimizing tissue irritation and enhancing procedural safety by smoothing out edges.
Implementation Method 1
the shell flexes between a first position and a second position as the cavity receives the at least a portion of the implant body
Data Source
AI summary
An implant assembly can include an implant configured to be coupled to at least one bone part. The implant can include an implant body that defines at least one unsmooth surface. The assembly can further include a cap configured to be coupled to the implant body such that the cap overlies the at least one unsmooth surface. The cap can include a shell that defines a cavity that is configured to receive at least a portion of the implant body such that the shell flexes relative to the implant body as the cavity receives the at least a portion of the implant body to thereby couple the cap to the implant. The cap defines an outer surface that is curved.