4-5
NOTE: Immediately after the trocar shaft has disengaged, the sample aperture is in the fully
open position. If you wish to have the sample aperture closed, press the open/close
button on the input device to move the cutter to the closed position.
After the probe has been introduced into the percutaneous site using either of the methods listed
above, the device is ready for tissue biopsy:
9. Orient the sample aperture to the desired position by manually rotating the ST holster aperture
rotation knobs or the ST probe aperture rotation thumbwheel; then press the BIOPSY button on the
active input device (holster, remote footswitch, or remote keypad) to acquire a tissue sample.
NOTE: Pressing and releasing the BIOPSY button produces a single tissue sample, while pressing
and holding the button produces continuous sampling when the user is holding down the
button. If Continuous Sampling is desired, refer to Other Instructions: Continuous Sampling.
Biopsy Function Description
• The biopsy cycle proceeds automatically.
• The specimen management system indexes to the next available chamber to receive the
specimen.
• The inner cutter cannula retracts, lateral and axial vacuum are applied, tissue is drawn into
the sample aperture, and the hollow inner cutter rotates and translates forward, cutting tissue.
• When the cutter reaches the distal end of the sample aperture, it stops moving.
• The probe then uses vacuum and a small amount of saline to transport the sample to the
active specimen collection chamber.
NOTE: When the vacuum canister is full of fluid, the overfill protection system is activated
and the vacuum stops operating. Replace the vacuum canister.
• The BIOPSY Indicator LED continuously flashes blue, and the motor is audible during the
sampling and tissue collection process.
• At the end of the biopsy cycle, an audible tone sounds, the vacuum turns off, and the Biopsy
Indicator LED illuminates solid blue.
PRECAUTION: The system must be primed with saline before use. Ensure that saline is
used for the procedure. The absence of saline may cause a decrease in
tissue transport to the chamber.
• A biopsy counter on the touchscreen interface keeps track of attempted samples. It appears
as a number in the center of the SMS graphic, representing the number of attempted
samples. (See Chapter 8: Software Description.)
PRECAUTION: Collect no more than one sample in each tissue collection chamber.
• The biopsy cycle can be interrupted to avoid unnecessary injury or visualize the location of
the sample aperture via imaging. (Refer to Other Instructions: Sample Interrupt.)
• Do not remove the specimen collection chambers during tissue acquisition.
PRECAUTION: Keep hands clear of the device during the biopsy cycle, unless using
continuous sampling.
NOTE: Only the ST holster operates and allows tissue sampling with the probe in the post-
fire position.
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