Based on raw materials, medical surface adhesives are broadly classified into five major categories, including cyanoacrylates and fibrin-based adhesives. Additionally, this category encompasses marine-derived medical adhesives-specifically those made from mussel adhesive proteins-as well as silicone-based adhesives. Among these, modified cyanoacrylates are the most widely utilized; although chemically related to "super glue," they possess the distinct advantage of being biocompatible. Their specific constituents typically include n-butyl cyanoacrylate and n-octyl cyanoacrylate. Products currently employed in clinical practice include:
Standard Type (offering basic adhesive strength)
Rapid-Drying Type (curing within 30 seconds)
Transparent Type (allowing for visualization of the wound site) - All types are formulated using biodegradable materials and are free from irritating chemical components.
In terms of product form, they are primarily categorized into spray-on types and endoscopic-delivery types. Common packaging specifications include 0.3 ml, 0.5 ml, 0.8 ml, 1.0 ml, 1.2 ml, 1.5 ml, 1.8 ml, 2.0 ml, and 2.5 ml per unit.
