Arcuate Syringe Clamp Mount for Axial Displacement Control

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Solution Overview

Problem

Existing clamp mounts for medical dosing devices do not effectively restrict the axial movement of drug delivery devices, such as syringes, which can lead to undesired displacement and jamming during use, especially under time pressure, and lack versatility to accommodate different sizes and types of devices.

Innovation Solution

A clamp mount with a recess designed as a groove that limits axial movement and features a curved or arcuate shape, allowing for secure clamping and easy release, utilizing a clamping device with a spring or elastic material for secure holding and gentle release, accommodating various syringe sizes and types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a clamp mount is designed to securely hold a syringe, then the syringe is firmly clamped and stable, but the syringe cannot be easily removed or dismantled

Engineering Contradiction:
Improvesecure clampingVSAvoideasy removal
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The clamping device incorporates a spring mechanism that provides dynamic clamping force. The spring allows the clamping device to automatically adjust to the syringe plunger, maintaining secure holding while enabling easy release when needed, thus resolving the contradiction between firm clamping and easy removal.

Inventive Principle:
Principle #15Dynamics

2Ease of manufacture

If the clamping device uses a straight-edged design, then the structure is simple and easy to manufacture, but it cannot effectively restrict axial movement of the syringe plunger

Engineering Contradiction:
Improvesimple structureVSAvoidaxial movement restriction
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The clamping device features an arcuate recess with curved surfaces instead of straight edges. This curved geometry effectively restricts axial movement of the syringe plunger by providing proper contact surfaces, while still maintaining manufacturability through standard machining operations, thus resolving the contradiction between structural simplicity and functional effectiveness.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Manufacturing precision

If the clamp mount is designed for a specific syringe size, then it provides precise fit and control, but it cannot accommodate different sizes and types of syringes

Engineering Contradiction:
Improveprecise fitVSAvoidcompatibility with different syringes
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The clamp mount is designed with a universal clamping mechanism that can accommodate syringes of different sizes and types. The arcuate recess and spring-loaded clamping device provide adaptive fitting that maintains precise control regardless of syringe dimensions, thus resolving the contradiction between precise fit and versatility.

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

4Reliability

If the clamping device applies strong clamping force, then the syringe is securely held and cannot displace, but it may cause damage during removal or dismantling

Engineering Contradiction:
Improvesecure holdingVSAvoiddamage risk
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The spring mechanism in the clamping device provides cushioning during both clamping and removal operations. During normal operation, the spring maintains secure holding force; during removal, the spring allows for gradual force reduction, preventing damage to the syringe or plunger, thus resolving the contradiction between secure holding and damage prevention.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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

The clamp mount effectively restricts unwanted axial displacement of drug delivery devices, prevents jamming, and allows for easy and robust dismantling without damage, ensuring secure attachment and detachment, and compatibility with different syringe sizes from various manufacturers.

Implementation Method 1

The clamping device has at least one spring or is connected to one, which brings about the clamping effect or contributes to it

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The clamping device comprises, consists of or is connected to elastic material in order to effect or contribute to the clamping action by means of the elasticity of the material

Methodology Applied
Scientific EffectSpring: Spring

Data Source

PatentEP2670455B1Clamp mounting for a syringe of a dosing device, dosing device and blood treatment device
Publication Date: 2017.10.04 FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
  • EP2670455B1 patent drawingFigure 1a~1b
  • EP2670455B1 patent drawingFigure 2a~2b
  • EP2670455B1 patent drawingFigure 3a~3b

AI summary

The invention relates to a clamp mounting (300) for receiving at least one section of a medicament dispensing device or for limiting the movement of said section in at least one direction. Said medicament dispensing device comprises a receiving chamber for the medicament solution or substance which is to be administered. Said clamp mounting (300) comprises at least one clamping device (305) which has at least one recess (307) provided to receive at least one part of the section of the medication dispensing device, or to limit the movement. Said recess (307) or at least one section thereof has a limitation which is arched-shaped or curve-shaped in relation to the non-recessed sections of the clamp mounting (305). Alternatively or additionally, the recess (307) or at least one section of said recess extends in an arch-shaped or curve-shaped manner in at least one section thereof. The invention also relates to a dosing device (100) and to a blood treatment device.