Disposable Vibration Tip with RFID Reuse Prevention
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Solution Overview
Problem
Current methods for reducing pain during injections, such as using cold materials or topical treatments, are cumbersome and not always effective in eliminating pain, especially when administering anesthetics or vaccines.
Innovation Solution
A handheld device with a disposable tip that vibrates the skin or tissue at the injection site, using a motor-driven cam system to transmit vibrations through a light rod, which can be pulsed to maintain nerve stimulation and prevent habituation, while also incorporating a unique tip design to prevent reuse and ensure sterility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a disposable tip with usage control is used, then sterility and reliability are improved, but device complexity increases due to RFID tags and reader systems
Solution Approach 1:
The patent employs disposable tips that are discarded after a single use to guarantee sterility and prevent cross-contamination. Each tip contains an RFID tag that stores usage information, ensuring that only new, sterile tips can be attached to the device. This disposable approach resolves the sterility requirement while the electronic control system manages tip lifecycle automatically.
Solution Approach 2:
The device incorporates a reader system that reads RFID tags on tips to verify tip authenticity and usage status. The system provides feedback by displaying tip information and preventing operation if a used or invalid tip is detected. This feedback mechanism ensures reliability by automatically enforcing sterility protocols without requiring complex manual verification procedures.
2Reliability
If vibration amplitude is increased to improve pain relief, then therapeutic effect is improved, but nerve receptor habituation occurs reducing long-term effectiveness
Solution Approach 1:
The device implements pulsed vibration delivery rather than continuous vibration. The controller activates vibration in periodic pulses, allowing intervals between stimulation bursts. This periodic action prevents nerve receptor habituation by resetting receptor sensitivity during off-periods, maintaining pain relief effectiveness over extended treatment durations while delivering sufficient vibratory stimulus during active periods.
3Reliability
If usage monitoring is implemented to prevent reuse, then sterility is improved, but ease of operation is reduced due to additional verification steps
Solution Approach 1:
The system performs automatic verification of tip status through RFID reading when a tip is attached. The controller autonomously checks the tip's usage history and authenticity without requiring manual inspection or user intervention. This self-service approach maintains ease of operation by eliminating additional verification steps from the user's workflow while ensuring sterility through automated reuse prevention.
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 device significantly reduces pain during injections by effectively stimulating nerve receptors, minimizing discomfort, and ensuring hygiene through disposable tips that cannot be reused.
Implementation Method 1
a cam connected to the motor; the cam configured to transmit vibration to a distal end of the tip
Implementation Method 2
the communication is carried out using an NFC protocol; the second antenna is connected to an interior surface of the tip; the communication is carried out using the ISO/IEC 14443A protocol
Data Source
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AI summary
A device vibrates body tissue to reduce pain experience by the body tissue in a therapeutic procedure. The device includes a frame and a tip connectable to the frame which can be activated to produce vibration. An electromagnetic reader is connected to the frame and includes an antenna for sending and receiving electromagnetic radiation. An electromagnetic tag is connected to the removable tip, and also has an antenna for sending and receiving electromagnetic radiation in communication with the electromagnetic reader antenna. The antennas are disposed proximate to each other when the removable tip is connected to the frame, whereby the electromagnetic tag can transmit information to the electromagnetic reader.