User's Manual

Table Of Contents
14. IMPLANT PROCEDURE
14.9. MEASUREMENT OF THRESHOLDS AT IMPLANT
Pacing and sensing thresholds should be measured at implant.
Pacing thresholds:
Acute thresholds should be lower than 1 V (or 2 mA) for a 0.35 ms pulse width, in the
ventricle and in the atrium.
Sensing thresholds:
For appropriate ventricular sensing, the amplitude of the R-wave should be greater than 5
mV.
For appropriate atrial sensing, the amplitude of the P-wave should be greater than 2 mV.
Pacing impedance measurements:
Ventricular and atrial pacing impedances should range from 200 to 3000 ohms (refer to the
lead characteristics, especially if high impedance leads are used).
Please refer to the leads user manuals for more details on the expected electrical
performances of the leads.
14.10. LEAD CONNECTION
Implant the ventricular lead, then the atrial lead.
Each lead must be connected to the corresponding connector port. The position of each
connector is indicated on the casing.
Tighten only the distal inserts.
To connect each lead, proceed as follows:
1. Clean the lead terminal pins thoroughly, if necessary (device replacement).
2. Lubricate the lead terminal pins with sterile water, if necessary.
3. Do not insert a lead connector pin into the connector block without first visually verifying
that the lead port is not filled with any obstacle.
4. Insert the screwdriver into the pre-inserted screw socket of the appropriate port (in order
to allow excess air to bleed out and to make the insertion of the lead pin easier).
5. Insert the lead pin all the way into the port (check that the pin protrudes beyond the distal
insert).
6. Tighten, check the tightness and ensure the lead pin still protrudes beyond the distal
insert, and has not move.
1. Do not tighten the pre-inserted screws when there is no lead (this could damage the
connector).
2. Do not loosen the screws before inserting the connector (subsequent risk of being unable
to reinsert the screw).
3. When mineral oil or sterile water is used to make lead insertion easier, the screwdriver
should remain inserted into the pre-inserted screw socket when checking the tightness.
SORIN PLATINIUM DR U460A
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CAUTION:
CAUTION: