| Autor: |
Geschwind, Herbert J., Kern, Morton J., Vandormael, Michel G., Blair, John D., Deligonul, Ubeydullah, Kennedy, Harold L. |
| Zdroj: |
Journal of the American College of Cardiology; September 1987, Vol. 10 Issue: 3 p655-661, 7p |
| Abstrakt: |
To evaluate the safety and efficiency of optically modified fiber tips, craters were created in human cadaver atherosclerotic arterial walls using sapphire contact probes and lensed fibers connected to a continuous wave neodymium yttrium aluminum garnet (Nd-YAG) laser. Laser energy was emitted at a constant level of 50 J. The sapphire contact probe catheter consisted of a round 2.2 mm diameter synthetic sapphire attached to an 8F catheter into which a 0.2 mm diameter optical fiber was inserted with the distal tip maintained at 3 mm from the sapphire. The lensed fiber catheter consisted of a 0.2 mm optical fiber at the end of which a 1 mm diameter lens was made. The fiber was inserted into a 5F low profile balloon catheter with the lens maintained 3 mm beyond the catheter tip. During laser emissions the catheter tips were maintained in a stationary position in contact with tissue targets immersed in blood at an angle of 90°. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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