RFID Medical Device Control Interface for Surgical Precision
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Solution Overview
Problem
Conventional medical control devices, such as foot pedals, pose ergonomic and safety issues during surgical procedures, including distraction, tripping hazards, and inefficiencies due to their design and placement, which can lead to increased surgery time and reduced precision.
Innovation Solution
A medical navigation system utilizing passive RFID tags that can be activated by a surgeon's finger or tools, allowing for precise control of medical equipment without the need for foot pedals or integrated user interfaces, reducing the need for visual and proprioceptive localization and minimizing tripping hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional foot pedals are used for controlling medical equipment during surgery, then the surgeon can operate equipment, but the surgeon must remove focus from the surgical field resulting in distraction and loss of concentration
Solution Approach 1:
The patent replaces the mechanical foot pedal system with an RFID-based wireless control system. The RFID tag attached to the surgical tool communicates with the RFID reader in the control device, enabling equipment control through proximity detection rather than mechanical foot activation. This eliminates the need for the surgeon to shift attention to foot pedals while maintaining hands-free equipment control capability.
Solution Approach 2:
The control device integrates multiple functions into a single handheld unit: RFID reading for tool identification, wireless communication for equipment control, and visual display for feedback. This multi-functional integration allows the surgeon to control equipment while maintaining visual focus on the surgical field, unlike specialized foot pedals that require separate attention.
2Ease of operation
If foot pedals with wires are used for communication and power supply, then the equipment can be controlled, but tripping hazards are created in the operating room
Solution Approach 1:
The patent replaces the wired mechanical control system with a wireless RFID-based system. The RFID tag and reader enable communication without physical wire connections, eliminating the tripping hazards associated with cables while maintaining the ability to control medical equipment during surgery.
3Adaptability or versatility
If multiple foot pedals are deployed for different functions, then more equipment control options are available, but the complexity and distraction increase
Solution Approach 1:
The patent consolidates multiple control functions into a single handheld control device that uses RFID technology. The device can identify different surgical tools via RFID tags and provide appropriate control functions for each, eliminating the need for multiple specialized foot pedals while maintaining versatility in equipment control.
Solution Approach 2:
The patent merges the functions of multiple foot pedals into a single integrated control device. The handheld unit combines RFID reading, wireless communication, and control output in one device, reducing the number of separate control elements from multiple to one, thereby simplifying the operating environment.
4Ease of operation
If conventional control devices require visual and proprioceptive localization, then control can be achieved, but surgery time increases due to reduced precision
Solution Approach 1:
The patent replaces localization-dependent control mechanisms with RFID-based proximity detection. The RFID reader automatically detects the attached tool through electromagnetic field communication without requiring the surgeon to visually locate or proprioceptively position control elements, thereby maintaining precision while reducing time loss.
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 RFID-based control system enhances surgical efficiency by allowing surgeons to maintain focus on the surgical site, reduces the risk of tripping hazards, and improves precision by enabling intuitive control of medical devices with the hand, thus potentially shortening surgery time and improving safety.
Implementation Method 1
an RFID sensor for detecting the passive RFID tag
Implementation Method 2
The passive RFID tag has an antenna, an RFID circuit, and a switching device coupled to the RFID circuit for activating the passive RFID tag
Data Source
AI summary
A medical navigation system is provided for controlling medical equipment during a medical procedure. The medical navigation system includes a passive radio frequency identification (RFID) tag, an RFID sensor for detecting the passive RFID tag, a controller coupled to the RFID sensor, and a robotic arm having an end effector and controlled by the controller. The RFID sensor provides a signal to the controller indicating presence of an activated passive RFID tag. The passive RFID tag has an antenna, an RFID circuit, and a switching device coupled to the RFID circuit for activating the passive RFID tag. The passive RFID tag is used to control a payload attached to the end effector.