Syringe Assembly Detection Using Magnetic Gradations
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Solution Overview
Problem
Existing syringe assemblies lack precision in monitoring the amount of fluid contained, detecting plunger motion, and monitoring the volume delivered, necessitating more accurate systems for fluid management.
Innovation Solution
A detection system incorporating a sensor that communicates with a plunger assembly to read gradations marked with identifiers, such as magnetic or UV ink, to monitor fluid volume and plunger position accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional syringe markings are used, then the syringe structure remains simple, but the measurement precision of fluid volume is insufficient
Solution Approach 1:
The patent replaces conventional optical/visual markings with magnetic identifiers detected by a magnetic sensor. The magnetic field-based detection system substitutes traditional mechanical/optical measurement methods, enabling precise volume measurement through magnetic signal detection as the plunger moves past graduated markings on the barrel.
Solution Approach 2:
The patent introduces magnetic identifiers as an intermediary between the plunger position and the detection system. These magnetic markers serve as mediators that translate physical plunger movement into detectable magnetic field changes, allowing the sensor to precisely determine fluid volume without direct optical contact with traditional markings.
2Measurement precision
If traditional plunger detection methods are used, then the device remains simple, but the detection precision of plunger motion is insufficient
Solution Approach 1:
The patent replaces mechanical detection methods (visual reading of markings) with a magnetic field-based detection system. The magnetic sensor detects changes in magnetic field strength as the plunger moves past magnetic identifiers, providing precise electronic detection of plunger position and motion without requiring mechanical contact or visual alignment.
3Reliability
If manual fluid monitoring is used, then the operation remains simple, but the reliability of fluid delivery monitoring is insufficient
Solution Approach 1:
The patent implements a feedback mechanism where the magnetic sensor continuously monitors plunger position and motion, providing real-time data about fluid delivery status. This feedback system enables automated tracking of administered volume, detection of delivery completion, and potential anomaly detection, significantly improving reliability compared to manual monitoring while maintaining relatively simple system architecture.
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
Provides precise monitoring of fluid volume and plunger motion within the syringe barrel, enhancing fluid delivery accuracy and consistency.
Implementation Method 1
a magnetic sensor in communication with a portion of the plunger assembly, wherein the magnetic sensor detects the magnetic identifier
Implementation Method 2
an optical sensor in communication with a portion of the plunger assembly, wherein the optical sensor detects the identifier
Data Source
AI summary
Detection systems for a syringe assembly that provide precision in monitoring the amount of fluid contained within the syringe barrel, detecting motion of the plunger within the syringe barrel, detecting the position of the plunger within the syringe barrel, and/or monitoring the volume received within or delivered by the syringe assembly are disclosed. A detection system of the present disclosure allows a sensor in communication with a portion of a plunger assembly to sense the motion of a plunger rod relative to a syringe barrel and thereby volume received within or delivered by the syringe by reading gradations having an identifier directly as the plunger rod with sensor moves past each respective gradation with identifier.