Modular Syringe Pump with Cam Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Syringe pumps used in medical applications face challenges in efficiently delivering precise amounts of medications over time, particularly in varying patient needs and equipment compatibility, with existing systems lacking flexibility and accuracy in handling different syringe sizes and fluid types.
Innovation Solution
A syringe pump system with a modular design that includes interchangeable pump assemblies, a sliding block assembly with a cam mechanism for engaging and disengaging with a lead screw, and sensors for monitoring pressure and volume delivery, allowing for precise control and adaptation to various syringe sizes and fluid types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a syringe pump uses a fixed pump assembly design, then the device structure is simple, but it cannot accommodate different syringe sizes and fluid types
Solution Approach 1:
The pump assembly is divided into separate modular components that can be detached and replaced. The pump assembly includes a pump body, plunger, and associated mechanisms that can be separated from the main device housing, allowing different pump assemblies to be interchangeably mounted on the same device base according to different syringe sizes and fluid requirements.
Solution Approach 2:
The device incorporates a universal mounting interface and standardized connection mechanisms that allow a single device base to accommodate multiple types of pump assemblies. The standardized interface includes universal mounting features, electrical connections, and fluid pathways that work across different pump assembly configurations, enabling one device to perform multiple functions with different syringe types.
2Reliability
If the syringe pump uses a cam mechanism for engaging the lead screw, then the engagement is secure, but the mechanism becomes more complex
Solution Approach 1:
The cam mechanism is pre-configured in the sliding block assembly to automatically engage with the lead screw when the pump assembly is mounted. The cam profile is designed to guide the engagement process, ensuring proper alignment and secure locking of the pump assembly to the device base before operation begins, eliminating the need for manual adjustment or complex fastening procedures.
3Measurement precision
If the syringe pump includes sensors for monitoring pressure and volume, then the dosing accuracy is improved, but the device complexity increases
Solution Approach 1:
Multiple sensing functions are integrated into a unified sensor system within the pump assembly. The pressure sensor and volume measurement capabilities are combined in a compact arrangement, sharing common signal processing circuitry and control interface connections. This merging reduces the number of separate components and wiring harnesses while maintaining accurate monitoring of both pressure and volume delivery parameters.
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
Enables precise and flexible administration of medications, accommodating different syringe sizes and fluid types, ensuring accurate dosing and reducing operational complexity, while maintaining reliability and safety.
Implementation Method 1
a sliding block assembly with a cam mechanism for engaging and disengaging with a lead screw
Data Source
AI summary
A pump for administering an agent to a patient includes a housing, a syringe seat, and a bumper. The syringe seat is coupled to the housing. The bumper is coupled to the housing adjacent to the syringe seat.