Fiber for Laser Angioplasty JGXG-03
Laser angioplasty (Excimer Laser Coronary Angioplasty, ELCA) relies mainly on laser ablation of biological tissue. Specialized fiber catheters and lasers clear blocked vessels in this minimally invasive procedure. Thermal effects are a major biological effect, vaporizing, cutting, or coagulating tissue. Heating boils tissue water and generates gas to vaporize tissue, particularly during cutting. Coagulative necrosis also treats hemangiomas or provides hemostasis. Selective absorption is important: wavelength-dependent tissue absorption allows targeted destruction with minimal surrounding injury. For example, 1.7μm lasers lie near collagen/fat absorption peaks and are particularly effective for those tissues. Specialized catheters are generally used. Excimer Laser Angioplasty (ELA) commonly uses multiple fibers around a central guidewire lumen. Diameter/type are selected for medical requirements. Fibers generally have silica cores, fluorinated cladding, and outer cladding of substantially the same pure silica as the core. Typical fiber diameter is 100 micrometers, with catheter diameters up to 2.5 millimeters. They efficiently transmit energy to treat and close desired vein lengths. Blood and/or vein walls absorb energy, thermally damaging and fibrosing veins. They work with different laser wavelengths or suitable focus-adjustable sources. Medical applications may use 980nm, 1470nm, 1950nm, or proportionate combinations. Overall, their materials and performance enable efficient energy delivery for various vascular diseases.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Fiber core diameter | 272 μm |
| Cladding Diameter | 299 μm |
| Coating Diameter | 330 μm |
| Buffer diameter | 420 μm |
| Length | 2.5M/3M |
| Termination type | SMA905 |
| Numerical Aperture (NA) | 0.22 |
| Core Material | Pure silica material |
| Fiber cladding material | Fluorine-doped silica material |
| Coating Material | Acrylic resin |
| Buffer material | Teflon |
| Buffer color | Blue/green/black/white |
| Operating Temperature | -40℃~150ºC |
| Transmission wavelength | 190-1100nm/400-2500nm |
| Single-filament transmission efficiency | ≥90% |
| Characteristics | Compliant with biocompatibility requirements |
| Proof-test strength | 100kpsi |
| Fiber Type | Step-index type |
Datasheet
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