Polymer-coated guidewire Introduction and selection

In recent years, the use of spring-coated whole section of bare metal guidewire is becoming less and less common, and instead, the surface of the metal wire is coated with polymer materials (mainly polyurethane or PTFE and fluorine materials) that are more histocompatible and hemocompatible.

This method of passing the polymer wire not only replaces the hard contact of the spring coil on the lumen wall, but also reduces the friction on the guidewire surface, and enhances the visualization of the entire guidewire procedure by applying stripes on the polymer surface, or by adding a developing material to the polymer (especially polyurethane).

This is particularly true of striped zebra guidewires, polymer PTFE-coated guidewires, and polyurethane-coated guidewires, which are increasingly being utilized in guidewire design and fabrication. Hydrophilic coatings can also be added to these types of guidewires to further reduce friction on the surface of the guidewire.

The diameter of the guidewire is measured in inches, with “035” representing a diameter of 0.035 inches. The guidewire diameters available are generally “010, 014, 018, 025, 035 and 038”. Each wire diameter has a matching catheter. The most commonly used guidewire sizes are “014 and 035”.

0.018 inch guidewire: When using a 21G micropuncture needle, a 0.018 inch guidewire is used. Note that the blood is dripping rather than the pulsatile spurt of blood that occurs when puncturing with a standard needle. Fluoroscopic guidance is often used when advancing the guidewire, as elbowed guidewires often enter smaller branches, such as the deep spinous iliac artery, which increases the risk of bleeding/hematoma.

0.035-0.038 inch PTFE-coated plain J-tip (3 mm) guidewire: 0.035 inch is the standard guidewire, with 0.038 inch providing better support. The guidewire has a non-invasive tip, and the soft 3 mm tip helps the guidewire stay within the vessel and avoid smaller branches, reducing the risk of accidental perforation and bleeding. Larger curved (6 mm or 15 mm) J-tip guidewires are available for patients with tortuous iliac or aortic arteries.

0.035-0.038inch PTFE-coated J-tip exchangeable long guidewire: J-tip exchangeable long guidewire (260 cm) is used in patients with severe peripheral vascular disease to avoid vascular trauma due to multiple attempts to pass through aortoiliac artery disease or tortuous vessels.

CatheterMelt tipping machine can make 0.014inch-0.038inch guidewire tipping. If you are looking for coated guidewire tipping machine. Please feel free to contact with us. We are good at this area.

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