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

Technical Parameters

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.

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.

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.

FAQ

1. What is the main purpose of the Suture Needle Elasticity and Toughness Tester?

The tester is designed to detect and evaluate the physical properties of elasticity and toughness of medical suture needles, providing objective performance verification.

2. In which situations is this tester commonly used?

It is used for quality control during manufacturing, procurement evaluation by medical institutions, and research and development to analyze how materials and processes affect suture needle performance.

3. Which standards does this tester support?

The device is designed in accordance with YY/T 0043 (Medical Suture Needles) and YY/T 0166 (Surgical Suture Needles with Thread).

4. What types of suture needles can be tested?

The tester supports multiple needle types, including 1/2 arc, 3/8 arc, 5/8 arc curved needles, and straight needles, within the specified size and length ranges.

5. How does the tester perform elasticity and toughness evaluation?

Elasticity is evaluated by measuring deformation after unloading following controlled expansion, while toughness is assessed by bending the needle to specified shapes and checking for cracks or fractures.

6. What features support automated testing and data reliability?

The system includes a programmable controller, touch screen, high-precision force sensor, automatic test modes, onboard printer, real-time data display, automatic result evaluation, buzzer alarm for unqualified results, and a three-level password system for data security.