Syringe Pump Parameter Detection for Fast Multi-Syringe Setup
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Solution Overview
Problem
Existing syringe pumps require calibration processes to ensure precise motor control, which can be cumbersome and limit flexibility in using different syringe types without reprogramming or updating operating software.
Innovation Solution
A method and syringe pump system that automatically determines syringe parameters by moving the slide to known nominal volumes, counting motor steps, and calculating steps per nominal volume, allowing for quick adaptation to various syringe types without reprogramming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a calibration process is performed to ensure precise motor control, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The system performs preliminary determination of syringe parameters (inner diameter, nominal volumes) and stores them in memory for future use. This preliminary action eliminates the need for repeated calibration processes, reducing time loss while maintaining measurement precision.
Solution Approach 2:
The system creates a digital copy of syringe parameters by determining them once and storing the data. This copied information is then reused for multiple syringes of the same type, eliminating the need for repeated physical calibration while preserving accuracy.
2Manufacturing precision
If calibration is performed for each syringe type, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The system determines parameters for one syringe and stores them as reusable data that can be applied to multiple syringes of the same type. This universal approach allows one calibration process to serve multiple syringes, reducing device complexity while maintaining manufacturing precision.
Solution Approach 2:
The system automatically determines syringe parameters using its own drive unit and sensors without requiring external calibration equipment or complex manual procedures. This self-service capability simplifies the calibration process while ensuring accurate parameter determination.
3Measurement precision
If manual calibration procedures are used, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The system automatically determines syringe parameters by moving the drive unit to predefined positions, detecting volumes with sensors, and calculating parameters programmatically. This eliminates manual calibration operations while maintaining measurement precision through automated measurement and calculation processes.
Solution Approach 2:
The system uses sensors to detect actual volumes at predetermined positions and feeds this information back to the control unit, which automatically calculates and stores the parameters. This closed-loop feedback mechanism ensures accurate parameter determination without requiring manual intervention.
Data Source
AI summary
The present disclosure relates to a method for determining syringe parameters. It encompasses, as a first step, the providing of a medical syringe pump with a syringe receptacle having a syringe inserted herein, a drive unit for a slide, a counting device for counting motor steps, at least one sensor, a control device and a storage device. The method as described herein also encompasses, as further steps, moving the slide successively at different positions corresponding to known nominal volumes of the syringe. In a further step, the difference between these two positions is determined and, finally, optionally a number of motor steps of the drive unit of the syringe pump is calculated per nominal volume unit with respect to the inserted syringe.