Syringe Positioning Assembly Single-Actuator Fixation

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Solution Overview

Problem

The existing syringe positioning assemblies for syringe pumps require separate operation of components to fix the barrel and flange, making the process complicated and inconvenient.

Innovation Solution

A syringe positioning assembly with a rotating member connected to a fixing member via a transmission member, allowing the rotating member to drive the fixing member to move, facilitating the simultaneous placement and fixation of the syringe barrel and flange by operating the rotating member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate components are used to fix the barrel and flange, then the fixation is stable, but the operation process becomes complicated and inconvenient

Engineering Contradiction:
Improvefixation stabilityVSAvoidoperation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines the barrel fixing component and flange fixing component into a single integrated positioning assembly. The positioning assembly includes a positioning plate with both a barrel positioning portion and a flange positioning portion, allowing both components to be fixed simultaneously through one operation rather than separately, thus maintaining fixation stability while improving operation convenience

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The positioning assembly serves multiple functions: it positions the barrel, positions the flange, and provides fixation for both components. The positioning plate acts as a universal platform that integrates multiple positioning functions into a single device, eliminating the need for separate operations for each component

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If separate components are used to fix the barrel and flange, then each component can be adjusted independently, but the fixing process becomes complicated

Engineering Contradiction:
Improveindependent adjustment capabilityVSAvoidfixing process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the adjustment mechanisms for the barrel and flange into a single integrated system. The positioning plate with its integrated positioning portions allows both components to be adjusted and fixed simultaneously through one operation, reducing the fixing process complexity while maintaining the adaptability to accommodate different syringe configurations

Inventive Principle:
Principle #5Merging (Combining)

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

This design simplifies the syringe fixing process by allowing the barrel and flange to be easily mounted and fixed in corresponding positions, improving the efficiency of the syringe positioning assembly.

Implementation Method 1

a second elastic member arranged in the housing, wherein the second elastic member is connected to both the housing and the rotating member, the second elastic member is deformed by the force of the rotating member rotating away from the carrying face, a deformation restoring force of the second elastic member being capable of driving the rotating member to rotate toward the carrying face

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS20240374828A1Syringe Positioning Assembly and Syringe Pump
Publication Date: 2024.11.14 MEDCAPTAIN MEDICAL TECH
  • US20240374828A1 patent drawing
  • US20240374828A1 patent drawing
  • US20240374828A1 patent drawing

AI summary

A syringe positioning assembly includes a housing, a rotating member, a fixing member and a transmission member. The rotating member is connected to the fixing member via the transmission member, and during rotation, the rotating member can, via the transmission member, drive the fixing member to move. When the rotating member rotates in a direction away from a carrying face of the housing, the fixing member can be moved in a direction away from the fixing face. A space between the rotating member and the carrying face of the housing facilitates placement of a barrel of a syringe and a space between the fixing member and the fixing face of the housing can also facilitate placement of a barrel flange. A user can thus move the fixing member just by operating the rotating member, so that the syringe can be easily mounted and properly positioned.