Infusion bag suspension force tester

Infusion bag suspension force testerIt is a specialized tool used for evaluationMedical infusion bag and its suspension systemSpecialized equipment that can withstand tensile strength, tear resistance, interface strength, and long-term suspension stability in clinical use. The core goal is to ensure that the infusion bag will not rupture, fall off, or leak due to gravity, shaking, or unexpected external forces during the suspension process, thereby ensuring patient safety and the reliability of medical operations.

Core functions and testing objectives

1. Suspension load bearing test

• Simulate the total weight of the infusion bag filled with liquid (such as physiological saline, medication), and test the maximum load-bearing capacity of the bag body, suspension hole/hook interface.

2. tear strength

• Detect the risk of bag or seam tearing caused by external force pulling (such as patient movement or equipment collision) when the infusion bag is suspended.

3. Interface strength testing

• Verify the mechanical strength of the connection parts such as the suspension hole of the infusion bag, the interface of the infusion tube, and the sealing cover to prevent detachment or leakage.

4. Long term suspension stability

• Test the material fatigue performance of infusion bags under continuous load (such as 24-hour infusion) and observe whether deformation or leakage occurs.

5. Dynamic force testing

• Simulate the force situation of infusion bags in moving, transporting, or shaking environments (such as ambulance bumps).

Main components

1. Precision loading system

• Using electric motors or pneumatic drives to apply controllable static or dynamic tension (usually ranging from 10N to 500N, suitable for infusion bags of different capacities).

• Adjustable loading speed (e.g. 0.5-100 mm/min) and testing angle (vertical, tilt).

2. Specialized fixtures and simulation devices

• Infusion bag fixtureImitation clinical hook design, suitable for hanging holes or edge clamping of infusion bags of different specifications.

• Liquid simulation systemSimulate the actual liquid weight (such as 500ml, 1000ml) by injecting water or weighting.

• Interface testing moduleApply pulling or twisting force to the interface of the infusion tube.

3. High sensitivity sensor

• force sensorReal time monitoring of tension values (accuracy ± 0.1% FS).

• displacement sensorRecord bag deformation or suspension point displacement.

• Leakage detection moduleMonitor liquid leakage through visual sensors or humidity sensors.

4. Medical grade safety design

• Anti splash protective cover to prevent accidental splashing of liquids during testing.

• Material compatibility: The contact part of the fixture is made of corrosion-resistant material (such as stainless steel) to avoid contaminating the infusion bag.

5. Intelligent Control and Data System

• Pre established testing procedures for medical industry standards such as ISO 8536-4 and YY/T 0615.

• Automatically generate reports to record key data such as peak tensile strength, fracture point, and leakage time.

Typical testing scenarios

1. Production quality inspection

• Before leaving the factory, randomly check the tensile strength of the suspension holes of the infusion bag (such as bearing 5 times the nominal weight).

• Verify the reliability of the seam heat sealing process.

2. R&D verification

• Long term suspension fatigue testing of new materials, such as multi-layer co extruded films.

• Optimization testing of new suspension structures, such as easy to tear and anti slip hooks.

3. Clinical simulation

• Simulate the safety of infusion stand shaking or emergency movement scenarios.

• Test the material performance changes under low temperature (such as refrigerated infusion bags) or high temperature environments.

4. Regulatory compliance

• Meet the mechanical performance requirements of medical device registration standards (such as China NMPA, US FDA 510 (k)).

Technical parameters (example)

• maximum load50N~1000N (can cover 50ml~3000ml infusion bags).

• test accuracyForce value ± 0.5% FS, displacement ± 0.1mm.

• Leakage detection resolution≥ 0.1ml liquid leakage.

• test modeStatic hold, cyclic loading, impact testing.

• data outputForce time curve, deformation image, leakage alarm record.

operating procedure

1. Sample installation

• Inject the infusion bag with the nominal volume of liquid (or equivalent weight), fix it on the fixture, and connect the infusion tube simulation interface.

2. Parameter Settings

• Select testing standards (such as YY/T 0615), set loading force, speed, and duration (such as 72 hour durability test).

3. execute tests

• Start the device, automatically apply load and monitor data, and support manual intervention during the process (such as simulating unexpected pulling).

4. Result Analysis

• Determine whether the test has been passed (such as no rupture, suspension point displacement ≤ 2mm, and no leakage at the interface).

5. Report Generation

• Output test reports that comply with medical regulations, including key data, process images, and compliance conclusions.

Special design requirements

1. biocompatibilityAvoid releasing particles or chemical substances during the testing process to contaminate the infusion bag.

2. Cleaning convenienceThe surface of the equipment is easy to disinfect and suitable for medical production environments.

3. Emergency stop functionAutomatically shut down when leakage or breakage occurs during testing.

4. Aseptic environment adaptationOptional cleanroom compatible version (such as ISO Class 7).

industry standard

• ISO 8536-4Medical infusion equipment Part 4 (infusion bags).

• YY/T 0615Method for testing the mechanical properties of medical infusion and transfusion equipment.

• ASTM D882Plastic film tensile performance standard (suitable for infusion bag materials).

Infusion bag suspension force testerIt is a key equipment for quality control of medical devices, and its design needs to take into account both factorshigh precision、Medical Safety StandardsandSimulation of clinical practical scenariosEnsure full cycle reliability from production to use.