IceCure™ Medical Ltd.
DMS-7064 rev. C
ProSense™
Confidential
User Manual
79
European User Manual
Warning
During functional test, portions of the cryoprobe other than the freeze zone,
including the plastic cover that is located near the cryoprobe handle, may
become cold due to malfunction. If unwanted freezing occurs, stop the pre -test
process by pressing
Cancel
.
Warning
Pay attention to the cryoprobe during functional test: bubbles, leak or frost on
its shaft may signal internal problems that could be hazardous.
Cryoprobe Positioning
5.2.7.1
Placement Calculation
The cryoprobe specification defines the distance from the tip to the center of the cooling
zone.
•
Place the center of the cooling zone in the center of the target tissue to achieve
accurate killing zone.
•
Use the below formula to calculate the position of the cryoprobe relative to the
target tissue.
Verification of proper positioning should be made via imaging tools in real time (i.e.
measuring the distance from the cryoprobe tip till the target tissue outline (including the
tumor and the safety margins to be treated).
Example 1:
Cryoprobe 3.4 elliptic shape (FAP7200000)
Cool zone center of cryoprobe 3.4 elliptic = 20 mm
Lesion size: 15 mm in its largest dimension
Lesion shape: oval/elliptic
20
–
(15/2) = 12.5 mm
Correct placement of the cryoprobe inside the lesion requires that the tip goes
beyond the lesion by 12.5 mm.
Example 2:
Cryoprobe 2.4 elliptic shape (FAP7800000)
