Surgery – Instruments – Light application
Patent
1996-04-15
1998-04-21
Lacyk, John P.
Surgery
Instruments
Light application
606 15, A61B 1736
Patent
active
057412464
ABSTRACT:
A laser balloon catheter device includes a housing containing a guidewire and an inelastic balloon. The balloon is surrounded by a clear silicone sleeve. A series of polyester electrically conductive flexible film strips are embedded inside the sleeve and adjacent the balloon. Each strip contains several vertical cavity surface-emitting lasers, each operating at 760-780 nanometer wavelengths and 1-10 milliwatts of power. During a balloon angioplasty procedure, the device is inserted into an affected artery across a region of stenosis. The balloon is inflated using inflation fluid provided from an external source. The inflated balloon expands the artery to eliminate the stenosis. Power is simultaneously applied to the lasers for a period of 5-10 minutes to encourage healing of the artery and reduce the occurrence of restenosis.
REFERENCES:
patent: 4881547 (1989-11-01), Danforth
patent: 5370615 (1994-12-01), Johnson
patent: 5470352 (1995-11-01), Rappaport
"GaInAsP/AIGaInP-Based Near-IR (780nm) Vertical-Cavity Surface-Emitting Lasers," by R.P. Schneider, Jr. et al., Electronics Letters, 30 Mar. 1995, vol. 31, No. 7, pp.554-555.
Harris-Ogugua Sonya
Lacyk John P.
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