Biological Device Insulating Sheet for Electrical Safety
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Solution Overview
Problem
Existing biological devices worn on the body do not adequately address the issue of electrical insulation, allowing electric currents to flow from external discharging devices, such as cautery knives or defibrillators, into the device's electronic unit.
Innovation Solution
A biological device with a case that includes a communicating hole, an electronic unit, a gas-liquid separator, and an insulating sheet. The insulating sheet is positioned apart from the gas-liquid separator and overlaps the communicating hole, preventing electric current flow from the outside to the electronic unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gas-liquid separator is used to block the communicating hole, then water intrusion is prevented, but electrical insulation is not provided allowing electric current to flow into the electronic unit
Solution Approach 1:
The patent divides the protection function into two separate components: a gas-liquid separator for waterproofing and an insulating sheet for electrical insulation. This segmentation allows each component to specialize in one protective function, with the gas-liquid separator blocking water while the insulating sheet prevents electric current from reaching the electronic unit through the communicating hole.
Solution Approach 2:
The insulating sheet acts as an intermediary element positioned between the communicating hole and the electronic unit. This intermediate layer specifically addresses the electrical insulation gap left by the gas-liquid separator, preventing direct electrical contact while allowing the gas-liquid separator to maintain its waterproofing function.
2Object-affected harmful factors
If the insulating sheet is positioned to overlap the communicating hole, then electrical insulation is provided, but gas passage may be blocked
Solution Approach 1:
The insulating sheet is positioned with local precision to overlap only the communicating hole area where electrical insulation is needed, while maintaining spatial separation from the gas-liquid separator's gas passage pathways. This localized positioning ensures electrical protection without compromising gas exchange functionality.
Solution Approach 2:
The patent resolves the conflict by arranging components in multiple spatial dimensions: the insulating sheet overlaps the communicating hole in the plan view (horizontal dimension) for electrical insulation, while the gas-liquid separator positioned apart in the thickness direction (vertical dimension) maintains gas passage, allowing both functions to coexist without interference.
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 insulating sheet effectively prevents electric currents from flowing from the external environment into the electronic unit of the biological device, enhancing electrical safety during use near discharging devices.
Implementation Method 1
The gas-liquid separation sheet blocks the communicating hole of the case. The gas-liquid separation sheet is pervious to gas and impervious to liquid water.
Implementation Method 2
an insulating sheet attached to the case or the electronic unit and disposed apart from the gas-liquid separator in the first direction, wherein the gas-liquid separator, the electronic unit, and the insulating sheet overlap the communicating hole in a plan view of the biological device in the first direction
Data Source
AI summary
A biological device that includes a case, an electronic unit, a gas-liquid separator, and an insulating sheet. The case is wearable on a body. The electronic unit is in an internal space of the case. The gas-liquid separator is attached to the case. The insulating sheet is attached to the case. The case has a communicating hole that connects the internal space and an external space of the case along a first direction. The gas-liquid separator and the insulating sheet are disposed apart from each other in the first direction. The gas-liquid separator, the electronic unit, and the insulating sheet overlap each other in a plan view of the biological device in the first direction.