UV Laser Marking of Absorbable Sutures

Ultraviolet lasers, with their cold processing characteristics, become the preferred solution for marking medical sutures. The micron-level precision and intelligent adjustment functions perfectly accommodate different materials, and the clean control of the entire process and AI quality inspection system ensure that the markings will remain clear over time, while also maximizing the maintenance of material performance, thus providing a reliable technical guarantee for the traceability management of medical devices.

Why is it that sutures require special processing?

In surgery, absorbable sutures are often used, and they must be marked with a product number or batch number on the surface.Traditional ink printing is prone to flaking off, and may also cause allergic reactions.The UV laser's "cold processing" characteristic comes into play at this point: it can precisely mark the material like a sewing needle without burning it.

These are the three key advantages of ultraviolet laser marking.

The carving is so fine that it can be done to the thickness of a human hair.

A marking precision of 0.01 millimeters is enough to handle even the tiniest of medical devices, like sutures.Even a thread as fine as 0.2 millimeters in diameter can be engraved with 8-point characters.

There was not a single mistake in the protection of the materials.

The 355-nm laser is like using an ice pick to cut through butter. It vaporizes the surface of the material instantly, leaving no heat damage.Test data shows that the strength of the suture material is retained at 99.7 %.

Intelligence can be adapted to different materials.

From PGA to PLA, the system can automatically adjust to different types of sutures by varying the pulse frequency and scanning speed.After a certain medical device manufacturer last year upgraded its equipment, the rate of defective products fell by 83 %.

The full process of medical-grade laser marking.

Special design of the pre-processing stage.

The robot is equipped with a visual positioning system that can automatically recognize the arc of the suture.It's like performing a CT scan on every stitch to ensure the carving is in the exact right place.

Strict control of the production environment is the key to success.

The entire working chamber is kept at ISO 7-class cleanliness, with automatic sterilization occurring every hour.Operators joke that the clean room is more meticulous than an operating room, with even the air having to be filtered.(Elaine Chen / photos by Chung Yung-ho / tr. by Phil Newell)

Quality control at the end of the production process.

The AI detection module can identify characters and measure dimensions in 0.8 seconds.When the system passed the FDA's tests last year, it achieved a 100 % accuracy rate.