B
I
PAP S
YNCHRONY
S
ERVICE
& T
ECHNICAL
I
NFORMATION
1032407, R
EV
. 00
I
NTRODUCTION
- P
AGE
2
The S/T mode ensures that patients receive a minimum number of breaths per minute based on the
Rate setting. If the patient fails to initiate an inspiration within the interval determined by the Rate
control, the unit triggers a timed (or machine-triggered) breath resulting in a pressure-control
(pressure-limited, time-cycled) breath at the set IPAP level. The rate of timed breaths is adjustable.
The duration of each timed breath is controlled by an Inspiratory Time control.
The Timed mode provides mandatory pressure assist. All breaths are machine triggered and machine
cycled. The patient breathing has no affect on this machine. The triggering is determined by the
Breath Rate control. The cycle time is determined by the Inspiratory Control.
The PC mode is equivalent to the S/T mode except that all breaths are machine cycled and, therefore,
have a fixed inspiratory time. This mode is a pressure limited, machine or patient triggered, time
cycled mode. The patient may initiate a breath, but all breaths are pressure limited (IPAP) and time-
cycled. The cycle time is determined by the Inspiratory Time control setting.
AVAPS is available in the S, S/T, Timed and PC modes. AVAPS provides dynamic IPAP control. The
IPAP pressure is dynamically controlled so that exhaled tidal volumes approach the Vte control value.
AVAPS provides gradual pressure changes to compensate for the tidal volume error observed over
several preceding breaths.
The BiPAP Synchrony provides the Bi-Flex feature in S mode. The Bi-Flex attribute adjusts therapy by
inserting a small amount of pressure relief during the latter stages of inspiration and during active
exhalation (the beginning part of exhalation).
The device incorporates a user interface made up of a Ramp Button, Humidifier Button, Alarm Reset
Button, Alarm Silence Button, Scroll Button, and Liquid Crystal Display (LCD). A pressure On/Off
push-button is located on the side of the unit.
S
ERVICE
N
OTICE
This service manual was prepared by Respironics primarily for use by technicians to service the BiPAP
Synchrony Ventilatory Support System. The individuals using this manual to service the BiPAP
Synchrony should have prior training or experience servicing ventilatory devices.
T
ECHNICAL
S
UPPORT
S
TATEMENT
Respironics is committed to customer satisfaction and may be contacted with any questions or for
product support. For product assistance or replacement part ordering information, contact Respironics
Customer Service.
US and Canada
Phone:1-800-345-6443
Fax:1-800-866-0245
Email: [email protected]
International
Phone:1-724-387-4000
Fax:1-724-387-5012
Email: [email protected]
