Efficient Resistor Design for Medical Implants
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Summary
Problems
The production of electrical resistors for medical implants, such as defibrillators, is complex and costly due to the need for precise welding and metallization processes, which complicates the integration of resistors into the final assembly.
Innovation solutions
An electrical resistor design featuring a resistance conductor applied to a carrier layer with connection elements that can be welded or soldered, utilizing a metal layer as a heat sink and incorporating through-contact areas for efficient energy absorption and reduced resistance, allowing for simplified production and adaptive current limitation.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If the resistor is etched from a base material and locally electroplated with nickel and gold, then the electrical and mechanical requirements are met, but the manufacturing process becomes complex and costly
Why choose this principle:
The patent extracts the metallization step entirely by using a carrier layer with pre-formed contact areas that have appropriate electrical and mechanical properties. The connecting elements are directly bonded to these contact areas without requiring electroplating, thus eliminating the complex nickel and gold electroplating process while maintaining reliability requirements.
Principle concept:
If the resistor is etched from a base material and locally electroplated with nickel and gold, then the electrical and mechanical requirements are met, but the manufacturing process becomes complex and costly
Why choose this principle:
The carrier layer serves multiple functions: it provides mechanical support, contains the contact areas for electrical connection, and enables direct bonding of connecting elements. This multi-functional design eliminates the need for separate metallization and insulation layers, simplifying the manufacturing process while meeting all electrical and mechanical requirements.
Application Domain
Data Source
AI summary:
An electrical resistor design featuring a resistance conductor applied to a carrier layer with connection elements that can be welded or soldered, utilizing a metal layer as a heat sink and incorporating through-contact areas for efficient energy absorption and reduced resistance, allowing for simplified production and adaptive current limitation.
Abstract
The invention relates to an electrical resistor (1) comprising: a resistance conductor (2) applied to a carrier layer (3), and two connection elements (4) electrically connected to the resistance conductor (2). According to the invention, the two connection elements (4) are configured to be welded or soldered to an electrical contact for electrical contacting the resistor (1), and the resistance conductor (2) has a region (20) overlapping with the respective connection element (4), which electrically contacts the respective connection element (4).