Surgery – Instruments – Electrical application
Reexamination Certificate
2005-08-30
2005-08-30
Peffley, Michael (Department: 3739)
Surgery
Instruments
Electrical application
C600S439000, C600S461000
Reexamination Certificate
active
06936048
ABSTRACT:
The invention is a transvaginal ultrasound probe having an attached echogenic needle that is useful in the treatment of uterine fibroids. The echogenic needle has an echogenic surface near its tip that allows the physician to visualize its location using ultrasound imaging. In one embodiment, the needle has an active electrode at its distal end. The active electrode supplies radio frequency energy to a fibroids causing necrosis of the targeted fibroid or by destroying the fibroid's vascular supply. The radio frequency needle preferably has a safety device that shuts-off energy if the needle punctures the uterine wall. In a second embodiment, the needle has a cryogen supply tube and cryogen supply. This embodiment destroys fibroid tissue by freezing it or its vascular supply when the tissue comes in contact with the needle's frozen distal end. The invention further includes the method of using the ultrasound probe with the attached needle.
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PCT Written Opinion of the International Searching Authority for PCT/US2004/000773.
Alston & Bird LLP
Charlotte-Mecklenburg Hospital Authority
Peffley Michael
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