Auto Injection Device with Pressure Feedback Control
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Solution Overview
Problem
Current drug delivery systems face challenges in safely and efficiently administering fluids to intrathecal and other anatomical sites due to risks of pressure build-up, leakage, and the need for manual adaptation to different anatomical sites and treatments, requiring significant clinician training and time.
Innovation Solution
A therapy-specific, pre-programmed auto-injection device with multiple syringes, actuators, and a controller that follows a pre-defined infusion and aspiration profile, capable of monitoring patient pressure and adjusting fluid delivery accordingly, ensuring controlled and safe administration of drugs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual injection methods are used, then flexibility in adapting to different anatomical sites is achieved, but the risk of pressure build-up and leakage increases
Solution Approach 1:
The injection device incorporates pressure sensors that continuously monitor intrathecal pressure during fluid delivery. The controller receives real-time pressure feedback and automatically adjusts the infusion rate to maintain pressure within safe thresholds, preventing both pressure build-up and leakage while accommodating different anatomical sites through programmable parameters
2Adaptability or versatility
If manual adaptation of drug delivery devices is performed, then customization to specific treatments is achieved, but the time and training required for clinicians increases
Solution Approach 1:
The device is pre-programmed with multiple therapy-specific protocols containing optimized infusion rates, pressure thresholds, and aspiration parameters for different anatomical sites and treatment types. Clinicians simply select the appropriate pre-configured protocol, eliminating the need for manual adaptation and extensive training while maintaining full customization capability
Solution Approach 2:
The injection device is designed as a universal platform that can deliver various therapeutic fluids to multiple anatomical sites through a single integrated system. The device incorporates multiple syringes, programmable controllers, and adaptable protocols that cover different treatment requirements, replacing the need for multiple specialized devices and reducing clinician training burden
3Reliability
If controlled fluid delivery is implemented, then safety against pressure build-up is improved, but the complexity of the device increases
Solution Approach 1:
The device uses automated feedback control through pressure sensors and controllers that monitor and adjust infusion rates in real-time, eliminating the need for manual pressure monitoring and calculation by clinicians. This automation enhances safety while presenting a simple user interface that masks the underlying complexity
Solution Approach 2:
The injection device performs self-regulation of fluid delivery parameters based on real-time pressure feedback. The system automatically adjusts infusion rates, initiates aspiration when pressure thresholds are exceeded, and maintains safe operating parameters without requiring continuous clinician intervention, thereby improving safety while keeping the operational interface simple
Data Source
AI summary
A therapy specific, pre-programmed, hand-held auto-injection device for delivering a drug to a patient includes a housing, a plurality of syringes carried by the housing, at least one actuator disposed within the housing coupled to the plurality of syringes, and a controller disposed within the housing and communicatively coupled to the at least one actuator. The controller is configured to receive an infusion and aspiration profile, which includes an infusion and aspiration protocol for controlling at least one of the plurality of syringes. The controller is also configured to operate the at least one actuator based on the infusion and aspiration protocol by either expelling a fluid from a respective barrel of the plurality of syringes into the infusion and aspiration location or drawing a fluid from the infusion and aspiration location into a respectively barrel of the plurality of syringes.