Suture Needle Elasticity and Toughness Tester

The Elasticity and Toughness Tester for Suture Needles is a specialized device dedicated to detecting the physical properties of elasticity and toughness of medical suture needles.

Applications

Quality Control: In the production process of medical devices, it is used for quality control to promptly identify and eliminate non - compliant products, ensuring that product quality meets the standard requirements. Procurement Evaluation: It provides a quality evaluation basis for medical institutions when purchasing and using suture needles, ensuring their safety and effectiveness during surgery. R & D Support: It assists researchers in the R & D process of suture needles to understand the impact of different materials and processes on the performance of suture needles, and provides data support for product improvement and optimization.

Standards

YY/T 0043 :Medical Suture Needles

YY/T 0166 :Surgical Suture Needles with Thread

Features

This device is composed of a programmable controller, LCD screen, dial indicator, distance measuring device, transmission mechanism, and onboard printer. It features a Chinese menu display, allowing users to set various parameters through a human-machine interface. It operates automatically, displaying the downward distance, increment, and deformation in real time, and prints the test data via the printer. It is easy to operate.

This equipment is a testing device used to verify the performance of products from manufacturers. It consists of a programmable controller, touch screen, force sensor, transmission device, and onboard printer. It provides both Chinese and English menu displays and features a human-machine interface for setting various parameters and automatic test modes. It also includes input for production unit and batch number, making the test results more standardized and consistent. For information security, it uses a three-level password system to ensure data security and reliability. The test control range includes functions such as test items, nominal specifications, arc shape, needle diameter, chord length, print settings, testing, upward movement, downward movement, and time settings. With the onboard printer, it can display elastic deformation data in real time. It automatically evaluates the test results; if the results are unsatisfactory, it activates an automatic buzzer alarm and prints the test data and results for analysis.

Technical Parameters

Serial No.	Parameter Item	Parameter Details
1	Needle Types	1/2 arc, 3/8 arc, 5/8 arc, straight needle, etc.
2	Nominal Range	0.2 - 1.8mm (size); 12mm ≤ L ≤ 80mm (length, customizable within the range)
3	Displacement Range	0 - 25mm
4	Resolution	0.01mm
5	Error	No more than ±1%
6	Controlled Deformation Rate	0.01mm/s - 1mm/s
7	Sensor	High-precision force value sensor
8	Power Supply	AC220V50Hz
9	Net Weight	30kg

Accessoriess

1 main unit;

1 set of testing software;

1 instruction manual;

1 certificate of conformity;

1 warranty card;

1 delivery receipt;

1 nameplate;

1 power cord;

1 set of wrenches;

Several brochures;

0-25 micrometer.

Test Procedures

1. Elasticity Test

Sample Fixing:

The tail/head of the curved needle is clamped into the fixture, and expanded to the standard arc increment (e.g., a 1/2 curved needle is expanded to a 3/8 curved shape).

Release Measurement: After unloading, read the deformation amount on the dial gauge. If it is ≤ the standard limit (e.g., 0.5mm for a medium needle ≤ 0.25mm), it is considered qualified.

2. Toughness Test

Bending Load:

Straight needle/triangular half-bent needle: Bent into a 6mm radius arc to 90° and held for 5 seconds.

Curved needle: Expanded to the target shape (e.g., 3/8 arc to a straight needle).

Result Determination: If there are no cracks or fractures in the needle body, it passes the test.

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