Chamfered Heat Transfer Plate Adhesive Load Reduction
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Solution Overview
Problem
The existing treatment energy application structures for medical devices apply intense pressure on adhesive sheets, leading to increased load when assembled and used, which can be detrimental during tissue treatment.
Innovation Solution
A treatment energy application structure with a chamfered corner on the heat transfer plate reduces the intense pressure applied to the adhesive sheet's boundary areas, minimizing the load on the adhesive sheet during assembly and use, and an insulating adhesive sheet with distinct areas for adhesion and non-adhesion functions is used to secure the flexible substrate and heat transfer plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the adhesive sheet is used to secure the flexible substrate and heat transfer plate, then reliable adhesion is achieved, but intense pressure is applied to the adhesive sheet's boundary areas increasing the load
Solution Approach 1:
The adhesive sheet is designed with different functional areas: a first area with adhesive properties for securing components, and a second area without adhesive properties that protrudes from the heat transfer plate. This local differentiation allows the adhesive sheet to provide reliable adhesion where needed while avoiding excessive pressure concentration on boundary areas, thus resolving the contradiction between adhesion reliability and load reduction.
2Reliability
If the adhesive sheet covers the entire heat transfer plate, then secure adhesion is achieved, but excessive pressure is applied to the boundary areas
Solution Approach 1:
The adhesive sheet has a first area that covers the heat transfer plate for adhesion and a second area that protrudes from the heat transfer plate without adhesive properties. This local quality differentiation ensures secure adhesion in the first area while the second area avoids applying excessive pressure to boundary areas, resolving the contradiction between adhesion strength and harmful pressure effects.
3Area of stationary object
If the adhesive sheet is made larger to cover more area, then adhesion coverage is improved, but the load on the adhesive sheet increases
Solution Approach 1:
The adhesive sheet comprises a first area for adhesion and a second protruding area without adhesive properties. This design allows the adhesive sheet to have extended coverage area while concentrating the adhesive function only where needed, preventing excessive load on the entire adhesive sheet structure by making only the necessary portion adhesive.
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
This configuration effectively reduces the load on the adhesive sheet, ensuring secure adhesion while preventing excessive pressure on the adhesive sheet during assembly and use, enhancing the reliability and safety of the medical treatment device.
Implementation Method 1
The electric resistance pattern is configured to generate heat by power supply
Implementation Method 2
The heat transfer plate is configured to contact a body tissue to transfer a heat generated from the electric resistance pattern to the body tissue
Implementation Method 3
An insulating adhesive sheet is interposed between the flexible substrate and the heat transfer plate to allow the flexible substrate and the heat transfer plate to adhere to each other
Data Source
AI summary
A treatment energy application structure includes a flexible substrate having an electric resistance pattern and a lead wire connection portion. A heat transfer plate faces the flexible substrate and transfers heat to the body tissue. An insulating adhesive sheet is interposed between the flexible substrate and the heat transfer plate. The insulating adhesive sheet comprises a first area to cover an entire surface of the electric resistance pattern and the heat transfer plate and a second area protruding from the heat transfer plate to cover a part of the lead wire connection portion. The heat transfer plate has a chamfered corner facing the insulating adhesive sheet. An adhesive may adhere the second area to at least one of the heat transfer plate and the substrate. The insulating adhesive sheet may adhere the substrate to both the heat transfer plate and the bridge portion of a cover.