Capacitance Sensors for Personalized Injection Site Selection
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Solution Overview
Problem
Injection devices can cause pain at the injection site and in the hours following, with pain levels varying depending on individual physiology, making it desirable to provide personalized guidance on less painful injection sites.
Innovation Solution
A method and system using capacitance sensors to evaluate potential injection sites by measuring tissue capacitance, determining expected pain levels, and providing personalized guidance to patients through a processing device or system comprising a needle, capacitance sensors, and a wireless transmitter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If injection devices are used to deliver medication, then medication delivery is achieved, but pain is caused at the injection site and in the hours following
Solution Approach 1:
The system performs preliminary evaluation of injection sites using capacitance sensors to measure tissue properties before the actual injection. This allows identification of sites with lower expected pain levels, enabling the user to select the best site in advance and thereby reduce injection pain while ensuring reliable medication delivery
2Ease of operation
If standardized injection sites are used, then injection process is simplified, but pain levels vary significantly based on individual patient physiology
Solution Approach 1:
The system evaluates different local regions of the body to identify injection sites with favorable local tissue properties. By measuring capacitance at multiple potential sites and comparing their characteristics, the system identifies locations with lower expected pain levels, thereby personalizing the injection process to reduce pain while maintaining ease of operation
Solution Approach 2:
The system changes the parameter being used to select injection sites from standardized anatomical locations to tissue-specific capacitance values. By measuring and comparing capacitance parameters at different sites, the system identifies optimal locations that minimize pain based on individual patient physiology rather than following fixed anatomical guidelines
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 system provides personalized guidance to patients on injection sites likely to result in less pain, aiding in the selection of less painful injection sites for medication administration.
Implementation Method 1
one or more capacitance sensors positioned at a potential injection site... a signal indicative of a capacitance of body tissue at the potential injection site measured by the one or more capacitance sensors
Data Source
AI summary
Methods and systems are provided for evaluating injection sites on a body of a patient. The methods/systems may instruct a patient to place one or more capacitance sensors in contact with a potential injection site on the body of the patient. The methods/systems may also comprise using a processing circuit to receive data indicative of a capacitance of body tissue at the potential injection site, as measured by the one or more capacitance sensors. The methods/systems may also comprise generating, using the processing circuit, an indication of a level of pain that would be expected to be experienced by the patient from a potential injection at the potential injection site based on the received capacitance.