Needle-Free Injector Position Tracking for Subcutaneous Dosing
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Solution Overview
Problem
Existing methods for administering large doses of medication subcutaneously via multiple injections are imprecise and prone to inconsistencies due to manual dexterity limitations and the potential for repeated injections at the same location.
Innovation Solution
A needle-free injector system equipped with sensors (accelerometer, gyroscope, barometric sensor) and an imaging sensor that tracks its movement and position, allowing for precise control of treatment volume and depth at multiple sites, and preventing over-administration by referencing previous injection data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If manual injection methods are used to administer large doses through multiple injections, then the treatment can be delivered to multiple sites, but the precision and consistency of treatment delivery deteriorates due to manual dexterity limitations
Solution Approach 1:
The patent replaces manual mechanical injection with an automated needle-free injection system that uses compressed gas to deliver treatment. The system incorporates sensors (accelerometer, gyroscope, barometric sensor) to automatically track injector position and movement, eliminating manual dexterity limitations and ensuring precise, consistent treatment delivery across multiple injection sites.
Solution Approach 2:
The injection system performs self-tracking and self-positioning using onboard sensors that automatically monitor the injector's location and movement without requiring manual input. The system independently determines when to deliver treatment based on tracked position data, enabling autonomous precise injection delivery.
2Adaptability or versatility
If multiple injections are administered manually to deliver large doses, then the treatment can be distributed across multiple sites, but the risk of repeated injections at the same location increases
Solution Approach 1:
The system continuously tracks injector position using accelerometers, gyroscopes, and barometric sensors, providing real-time feedback on location. This feedback mechanism enables the system to automatically prevent repeated injections at the same location by monitoring movement between injection sites and only delivering treatment when a new valid location is confirmed.
Solution Approach 2:
The automated tracking system replaces manual location tracking, using sensor data to objectively determine injection sites without human error. The system independently verifies location changes and prevents duplicate injections, ensuring reliable treatment distribution across multiple distinct sites.
3Object-affected harmful factors
If needle-free injection is used to deliver treatment, then the comfort and safety of the patient is improved, but the ability to precisely control injection depth and location deteriorates without visual feedback
Solution Approach 1:
The needle-free injector performs self-positioning and self-depth control using onboard sensors that automatically track the injector's orientation, position, and movement. The system independently determines optimal injection timing and depth based on sensor data, maintaining precise control without requiring visual feedback or manual adjustment.
Solution Approach 2:
The system replaces visual feedback mechanisms with sensor-based tracking (accelerometer, gyroscope, barometric sensor) to monitor injection parameters. This substitution maintains precise depth and location control while preserving the needle-free comfort advantage, as the sensors automatically capture spatial information without visual intervention.
Data Source
AI summary
A device for administering needle-free subcutaneous treatment to a patient comprises an actuator configured to deliver a plurality of volumes of a treatment at a plurality of locations on a body of the patient; at least one imaging device configured to detect a movement of the needle-free device from a first location on the body of the patient to a second location on the body of the patient; and a processor configured to determine the second location on the body of the device relative to the first location from the movement of the needle-free device relative to the first location on the body, the processor further configured to determine a volume of the plurality of volumes of the treatment to deliver to the body of the patient at the second location.