Implant Head Part Assembly Tool for Contact Ring and Seal Alignment
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Solution Overview
Problem
Existing methods for producing implantable medical device head parts require laborious manual installation of electrically conductive contact rings and insulating seal rings, leading to high fault rates and inefficiencies in large-scale production.
Innovation Solution
An installation tool set comprising a rod-shaped installation tool, fixing body, adjusting means, and receiving structure, which allows for the axial alignment and secure attachment of contact rings and seal rings, followed by a curable casting process to form the head part housing, facilitating easy separation of the tool components post-curing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual installation methods are used to assemble contact rings and seal rings, then flexibility and adaptability are maintained, but productivity is low and manufacturing precision is poor
Solution Approach 1:
The installation tool is divided into multiple functional segments: a rod-shaped core component, separate fixing bodies for different ring types, and modular adjusting means. This segmentation allows each component to perform its specific function efficiently while maintaining overall system simplicity.
Solution Approach 2:
The rod-shaped installation tool acts as an intermediary carrier that temporarily holds contact rings and seal rings in sequence during the installation process. This intermediary structure enables precise positioning and controlled application of joining force without requiring complex manual manipulation.
2Reliability
If alternating sequence of contact rings and seal rings are installed with axial joining force, then reliability of sealing and electrical insulation is improved, but ease of manufacture deteriorates due to laborious installation measures
Solution Approach 1:
The contact rings and seal rings are pre-assembled in the correct alternating sequence on the rod-shaped installation tool before being inserted into the head part housing. This preliminary arrangement ensures proper positioning and eliminates the need for complex manual manipulation during the actual installation process.
Solution Approach 2:
The installation tool automatically maintains the alternating sequence of contact rings and seal rings through its结构设计, which guides each ring into its correct position. The tool serves itself by incorporating features like local recesses and fixing bodies that self-align and self-position the rings without requiring operator skill or judgment.
3Manufacturing precision
If curable casting material is used to form the head part housing, then manufacturing precision and surface finish are improved, but device complexity increases due to the curing process
Solution Approach 1:
The casting material undergoes a parameter change from liquid to solid state through curing, which allows it to take the precise shape of the mold cavity formed by the installation tool. This phase transition enables high manufacturing precision while keeping the process simple.
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
Enables high-quality, reproducible production of implantable medical device head parts with reduced fault rates and simplified tool separation, enhancing production efficiency and consistency.
Implementation Method 1
a curable casting material that in the solidified state takes up the joining force is poured into the device
Data Source
AI summary
An installation tool set for producing an implantable medical device includes an installation tool with a rod longitudinal axis and an axially extending rod surface, along which a local recess is introduced. A fixing body defines a through channel, through which the installation tool is passable along a first rod section and into which an opening opens. The opening is oriented orthogonally to the through channel, around which an internal thread is arranged within the fixing body. An adjusting rod has a joining contour that is counter-contoured relative to the local recess in the installation tool and a counter-thread engageable with the internal thread of the fixing body. A receiving structure defines a recess into which the installation tool is inserted. The fixing body, an electrically conductive contact ring, and an electrically insulating, elastically deformable seal ring are arranged coaxially and in axially serial sequence along the installation tool.