Medical instrument working end and method for endoluminal...

Details Medical instrument working end and method for endoluminal... Medical instrument working end and method for endoluminal...

2005-06-28

2005-06-28

Peffley, Michael (Department: 3739)

Surgery

Instruments

Electrical application

C606S046000, C607S104000

Reexamination Certificate

active

06911028

ABSTRACT:
A medical instrument that utilizes electrical energy delivery between first and second opposing polarity electrodes in an interior bore of a working end to cause vaporization of an inflowing fluid media. The vaporization and expansion of the fluid media creates pressure gradients in the working end that causes heated vapor to propagate distally from the working end. The propagation or jetting of the vapor media is used to controllably cause thermal effects in endoluminal environments. The instrument and method can be used to shrink and occlude blood vessels in a treatment for varicose veins.

REFERENCES:
patent: 4682596 (1987-07-01), Bales et al.
patent: 5122138 (1992-06-01), Manwaring
patent: 5697281 (1997-12-01), Eggers et al.
patent: 6168594 (2001-01-01), LaFontaine et al.
patent: 6210404 (2001-04-01), Shadduck
patent: 6508816 (2003-01-01), Shadduck

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