Autoclavable Medical Device Switching via RFID and Faraday Cage Shielding
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Solution Overview
Problem
Existing medical devices lack a reliable and autoclavable method for remotely switching medical systems without requiring additional hand-held or finger-operated switches, leading to sterilization challenges and increased costs due to non-autoclavable components.
Innovation Solution
A medical device with a switching system featuring a Faraday cage and a passive RFID element, allowing remote activation or deactivation of medical system components, enabling autoclavability and reducing the need for additional electrical components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional hand-held or finger-operated switches are used to remotely switch medical systems, then switching functionality is achieved, but sterilization becomes difficult and costs increase due to non-autoclavable components
Solution Approach 1:
The patent replaces traditional mechanical switches with RFID technology. The switching device contains an RFID transponder that communicates wirelessly with the medical system, eliminating the need for mechanical contact and electrical components that cannot withstand autoclaving. The RFID system uses electromagnetic fields for communication, allowing the entire device including the switching mechanism to be autoclavable.
Solution Approach 2:
The switching device integrates multiple functions into a single autoclavable unit: it serves as both a remote control mechanism and a sterilizable medical instrument component. The RFID transponder and antenna are integrated into the autoclavable housing, allowing the device to perform remote switching while maintaining autoclavability, thus eliminating the need for separate non-sterile control devices.
2Ease of operation
If traditional switching devices are used, then switching functionality is provided, but the device complexity increases due to additional electrical components
Solution Approach 1:
The patent eliminates complex electrical switching mechanisms by using RFID technology. The switching device contains an RFID transponder with a microcontroller that communicates wirelessly via electromagnetic fields, replacing traditional mechanical switches, buttons, or electronic keypads. This reduces the number of electrical contacts, wires, and complex switching mechanisms while maintaining full switching functionality.
Solution Approach 2:
The patent extracts the essential switching functionality from complex electrical mechanisms and implements it through a simplified RFID-based system. The core switching capability is achieved through wireless communication between the RFID transponder in the switching device and the reader in the medical system, eliminating unnecessary electrical components while preserving the ability to activate or deactivate medical system functions.
3Ease of operation
If remote control devices are used, then switching capability is achieved, but the need for sterilization becomes problematic due to non-autoclavable materials
Solution Approach 1:
The patent replaces traditional remote control mechanisms with RFID technology integrated into an autoclavable housing. The RFID transponder, antenna, and microcontroller are all housed in a sterilizable casing made of autoclavable materials. This allows the entire remote control device to withstand autoclaving cycles, eliminating the sterilization problems associated with traditional electronic remote controls containing non-sterile components.
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 remote, efficient, and sterilizable switching of medical devices, reducing noise pollution and extending the lifespan of medical instruments by allowing for easy sterilization and reuse.
Implementation Method 1
the first switching element has part of a Faraday cage or a Faraday cage and the second switching element has a transmitting device
Implementation Method 2
RFID technologies (RFID is an English abbreviation and stands for radio-frequency identification) have found their way into medical technology, as they enable a wireless exchange of information
Data Source
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AI summary
The invention relates to a medical device, which in particular is a component of a medical system, with a switching device for activating or deactivating an electrical device of the medical system spatially separated from the medical device, wherein the switching device has a first switching element and a second switching element which are movably configured relative to each other so that a first switch position and a second switch position can be realized, and the first switching element has a part of a Faraday cage or a Faraday cage and the second switching element has a transmitting device, wherein the first switching element and the second switching element are configured relative to each other in such a way as tothat in the first switch position, the electrical equipment of the medical system is activated or deactivated, and in the second position, a deactivation or activation complementary to the first switch position occurs by shielding the transmitting device by means of part of the Faraday cage or by means of the Faraday cage itself.