Sherlock 3CG™ Tip Confirmation System
Page 21
Magnetic Navigation and Catheter Tip Navigation
As the stylet tip approaches the sensor, an icon appears at the edge of the screen
indicating the approach of the stylet tip.
When the stylet is under the sensor, the stylet and depth icons will display the location,
orientation, and depth of the stylet in relation to the sensor.
Advance the catheter slowly to achieve optimal performance (1 cm per second). There
may be a slight delay from the time the catheter is moved until the stylet icon moves on
the display. Advancing the catheter too quickly may result in erratic movements of the
stylet icon on the display.
Insert the catheter until the magnetic navigation shows the stylet moving consistently
downward.
Continue to slowly advance catheter until the catheter is inserted to the external
measurement as determined in the Bard Access Systems’ catheter Instructions for Use.
Select [ ] to freeze/save the current ECG waveforms in the reference screen.
ECG Positioning
In patients with a distinct P-wave, the P-wave will increase in amplitude as the catheter
approaches the cavo-atrial junction. As the catheter advances into the right atrium, the
P-wave will decrease in amplitude and may become biphasic or inverted.
Note
: If the intravascular ECG waveform is not displayed, flush the catheter with
saline. If the problem continues, check the stylet-to-fin connection.
To freeze and compare ECG waveforms select [ ] to copy ECG waveforms in the
reference window.
Note:
Pause to let the rhythm settle before freezing the reference ECG waveforms.
For final catheter positioning, refer to Bard Access Systems' catheter Instructions for
Use.
Step 14: Complete the catheter placement.
Complete catheter insertion, securement and remaining procedure according to the
catheter Instructions for Use and facility protocol.