Cryosurgical instrument and related techniques
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 20, 2001
Grant Date -
N/A
app pub date -
Nov 16, 1998
filing date -
Dec 5, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cryosurgical instrument includes a cryoprobe operative to form an ice ball in tissue of a patient targeted for cryosurgery upon activation, a sheath disposed over the cryoprobe and at least one measuring device supported by the sheath for measuring a parameter of the tissue of the patient. The instrument includes a processor for predicting formation of the ice ball by the cryoprobe over time and a display for displaying the prediction of ice ball formation. The processor is responsive to an output signal provided by the measuring device and a model of the effective thermal conductivity of the tissue of the patient targeted for surgery. In one embodiment, the measuring device is embedded in the sheath and measures temperature, thermal conductivity, blood perfusion rate and/or thermal diffusivity. The processor may be further responsive to an impedance measurement circuit for verifying the prediction.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully