Editorial Technical Reference

Syringe Pump Assembly

This page explains how Syringe Pump Assembly is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A precision mechanical assembly that drives and controls the syringe plunger to deliver contrast media at specified flow rates and volumes.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Syringe Pump Assembly

Definition
The syringe pump assembly is a critical sub-system within a contrast injector medical device. It consists of the motorized drive mechanism, syringe holder, plunger engagement system, and position sensors that work together to accurately and reliably inject contrast agents into patients during diagnostic imaging procedures such as CT scans, MRIs, and angiograms. The assembly is designed to accommodate standard Luer lock syringes ranging from 5 to 60 mL, covering low to high flow applications. It operates within a flow rate range of 0.1 to 1500 mL/h with an accuracy of ±2% of the set rate under steady conditions. The plunger force capability is 10 to 50 N to overcome resistance. The assembly is specified for operating temperatures of 5 to 40 °C and storage temperatures of -20 to 60 °C, with relative humidity of 20 to 80% non-condensing. It is protected against dust and splash water with an ingress protection rating of IP54 to IP65 per IEC 60529. The supply voltage is 24 V DC ±10%, protected against reverse polarity, with power consumption of 15 to 30 W peak during rapid infusion. Approximate dimensions are 300×150×200 mm (L×W×H) and weight is 2.5 to 3.5 kg without syringe and packaging. Materials on file include stainless steel (316L), medical-grade plastics (PEEK, polycarbonate), aluminum alloys, and silicone seals. The wetted parts are specified as stainless steel 304 per ASTM A240, with housing made of ABS. These values are reference ranges that must be verified for the specific model and application with the legal manufacturer or supplier.
Working Principle
An electric motor (typically stepper or servo) drives a lead screw or linear actuator mechanism. This converts rotational motion into precise linear displacement of the syringe plunger. Position feedback sensors monitor plunger movement, while control electronics regulate motor speed and direction to achieve programmed injection protocols (flow rate, volume, pressure limits). The assembly interfaces with the injector's control system, receiving commands for infusion parameters. The motor's torque is transmitted through the lead screw to the plunger, applying force within the specified range. Sensors provide real-time data for closed-loop control, ensuring accuracy. The syringe holder and plunger engagement system secure the syringe and maintain alignment. The operating principle is fundamental to the assembly's function, enabling precise delivery of contrast media.
Common Materials
Stainless steel (316L), Medical-grade plastics (PEEK, polycarbonate), Aluminum alloys, Silicone seals
Technical Parameters
ParameterTypical rangeNotes & selection driver
Flow Rate Range0.1–1500 mL/hCovers low to high flow applications
Flow Rate Accuracy±2 %Of set rate, under steady conditions
Syringe Size Compatibility5–60 mLStandard Luer lock syringes
Plunger Force10–50 NMaximum force to overcome resistance
Operating Temperature5–40 °COutside range may affect accuracy
Storage Temperature-20–60 °CNon-condensing environment
Relative Humidity20–80 % RHNon-condensing
Ingress ProtectionIP54–IP65Dust and splash water protectedIEC 60529
Supply Voltage24 ±10% V DCProtected against reverse polarity
Power Consumption15–30 WPeak during rapid infusion
Dimensions (L×W×H)300×150×200 mmApproximate, varies with model
Weight2.5–3.5 kgWithout syringe and packaging
Material304 Stainless SteelFor wetted parts; housing ABSASTM A240

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Drive Motor
    Provides controlled rotational force to drive the plunger mechanism
    Material: Steel/copper windings, rare earth magnets
  • Lead Screw Assembly
    Converts motor rotation into precise linear motion of plunger rod
    Material: Stainless steel
  • Syringe Holder/Clamp
    Secures syringe barrel in correct position during operation
    Material: Medical-grade plastic with stainless steel springs
  • Plunger Engagement Head Part
    Interface that connects to and drives the syringe plunger
    Material: Medical-grade plastic (PEEK)
  • Position Sensor
    Monitors plunger position for feedback control
    Material: Electronic components with plastic housing
  • Control Electronics
    Regulate motor speed and direction to the programmed injection protocol.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Syringe Pump Assembly.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 1000 psi
flow rate: 0.1 μL/min to 100 mL/min
temperature: 5°C to 40°C
slurry concentration: Not applicable for contrast media; suitable for homogeneous solutions only
Media Compatibility
✓ Iodinated contrast media ✓ Gadolinium-based contrast agents ✓ Saline solutions
Unsuitable: Corrosive chemicals or abrasive slurries
Sizing Data Required
  • Required flow rate range (μL/min to mL/min)
  • Syringe volume capacity (mL)
  • Maximum operating pressure (psi)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Stepper motor stalling/slippage
Cause: Mechanical binding from particulate contamination in lead screw assembly, misalignment, or insufficient lubrication leading to increased friction and torque overload
Fluid leakage at syringe barrel interface
Cause: Seal degradation from chemical incompatibility with pumped fluids, improper syringe installation causing seal misalignment, or repeated mechanical stress leading to seal compression set
Maintenance Indicators
  • Audible clicking or grinding from drive mechanism during operation
  • Visible fluid droplets or wetting at syringe plunger/barrel interface during pumping cycle
Engineering Tips
  • Implement precision alignment procedures during syringe installation and use manufacturer-recommended cleaning protocols to prevent particulate ingress in mechanical drive components
  • Establish chemical compatibility verification for all pumped fluids and implement scheduled seal replacement based on both calendar time and cumulative actuation cycles

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 7886-1:2017 - Sterile hypodermic syringes for single use ANSI/AAMI ES60601-1:2005 - Medical electrical equipment - Part 1: General requirements for basic safety and essential performance DIN EN 13824:2004 - Sterilization of medical devices - Aseptic processing of liquid medical devices - Requirements

Quoted from the published standard.

Manufacturing Precision
  • Syringe barrel inner diameter: +/-0.02mm
  • Piston seal surface flatness: 0.1mm
Quality Inspection
  • Leakage test under pressure
  • Material composition verification via X-ray fluorescence (XRF) analysis

Manufacturers of Syringe Pump Assembly

Manufacturer profiles associated with Syringe Pump Assembly.

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Frequently Asked Questions

What is the flow rate range of this syringe pump assembly?

The flow rate range is 0.1 to 1500 mL/h, covering low to high flow applications. This is a reference range; the exact range for a specific model should be confirmed with the legal manufacturer or supplier.

What syringe sizes are compatible with this assembly?

The assembly is compatible with standard Luer lock syringes ranging from 5 to 60 mL. Always verify compatibility with the specific syringe model and the injector system.

What materials are used in the assembly?

Materials on file include stainless steel (316L), medical-grade plastics (PEEK, polycarbonate), aluminum alloys, and silicone seals. Wetted parts are specified as stainless steel 304 per ASTM A240, with housing ABS. Verify material compatibility with your application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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