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SonoSite AxoTrack® Needle Guidance Technology Part 2: Device Assembly and Set-Up


(light music) – [Voiceover] Assembly of the
Transducer Shield is simple but requires care to avoid contamination of the sterile field. First, the non-sterile
assistant removes the kit and the Instructions for Use from the box. The Instructions for Use must be studied to the extent necessary to facilitate proper use of the kit. The sterile practitioner
then removes the sterile kit from the pouch and places
it on the sterile field. The assistant applies a pea-sized volume of ultrasound gel to the transducer face. Note that either
non-sterile or sterile gel may be used between the transducer face and the inside of the sterile shield. The gel volume should cover
approximately 1/2 to 2/3 of the extent of the transducer face. Avoid applying excessive ultrasound gel as this could compromise
sterility of the shield. Visually confirm that the protective cap is properly positioned
over the needle guide. The assistant lowers the transducer into the bottom half of
the transducer shield until it is fully seated. Care must be used to avoid contaminating the practitioner’s sterile gloves. The protective cap is removed
by the non-sterile assistant using care to avoid touching
the sterile bottom shield. The practitioner then slides the top half of the sterile shield
down over the transducer and snaps it in place simultaneously in the front and rear of the shield. There should be audible clicks from both the front and
the rear snap closures when the two halves lock together. The snap closures at the
front and rear of the shield should be checked visually to confirm complete shield
closure around the transducer. To install the cable sleeve, the assistant holds the
transducer by the cable and lowers it into the cable sleeve being held by the practitioner until it reaches the
distal end of the sleeve. (light music) At this point, the sterile
practitioner grasps the transducer and
secures the sterile sleeve to the shield with an elastic band. Gently pull on the sleeve
until the elastic band is snug against the flange of the transducer shield assembly. Insertion of the needle
into the needle guide is facilitated by resting the
magnet on the magnet rail. Place the magnet against the magnet rail to stabilize the needle assembly. Align the needle tip with
the needle guide orifice and advance the needle into the guide. As a final check before use, the practitioner passes the
needle through the needle guide and observes when the needle
tip starts to protrude from the bottom of the transducer shield. At this point, the image
of the virtual needle should be seen just entering the very top of the ultrasound field. This step confirms calibration is correct. Depending upon which hand is used to advance the needle
during the procedure, it may be necessary to toggle
the left/right orientation of the ultrasound image. If the needle is advanced
with the left hand, the virtual needle should
enter from the left side of the ultrasound image. If the needle is advanced
from the right hand, the virtual needle should
enter from the right side of the ultrasound image. Consult your ultrasound
system’s user guide for specific instructions on how to toggle the ultrasound screen. Finally, the practitioner
slides the needle slowly forward and backward
through the needle guide and observes the virtual
needle on the sonogram. The motion of the virtual needle should mirror the motion
of the actual needle. The needle is then withdrawn after these tracking verifications and placed in the sterile field until utilized in the following procedure. If any of these system checks fails, the practitioner should stop the procedure and refer to the sterile kit instructions for proper assembly, and to the transducer and system’s user guides
for correct settings. For more information, please visit sonosite.com/axotrack. (light music)

Reynold King

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