SECTION 4
SERHT50NA A0808 4-1
GENERAL SYSTEM OVERVIEW
The Newport HT50 Ventilator is a compact, lightweight, power-
conservative, ventilator that is designed to provide ventilation for
adult and pediatric (infants, children & adolescents) patients with
body weight >
10 kg.
The HT50 Ventilator’s unique, patented dual-micro-piston gas
compressing technology allows the HT50 to operate without an
external compressed gas source, making it convenient to use in a
variety of environments such as hospitals, emergency response,
subacute facilities, homes and transport operations.
The dual micro pistons’ ability to deliver a variable flow enables
the HT50 to provide a full range of operating modes and breath
types, including Assist Control, SIMV and SPONT modes with
Volume Control and Pressure Control mandatory breaths,
Pressure Support of spontaneous breathing and servo-controlled
leak-compensated PEEP. Leak compensation helps to improve
triggering and avoid auto-triggering when a leak is present. The
HT50 may be used with an endotracheal tube, tracheal tube,
mask or mouthpiece.
The HT50 provides monitoring of inspiratory tidal volume (every
breath), inspiratory minute volume, total respiratory rate, peak
pressure, mean pressure and baseline (PEEP) pressure. Real-
time patient circuit pressure is displayed at all times on the airway
pressure gauge on the face panel.
The user sets variable alarm settings for High Pressure, Low
Pressure, High Inspiratory Minute Volume and Low Inspiratory
Minute Volume, with Back Up Ventilation provided in all modes in
response to a Low Minute Volume Alarm. There are also built in
alarms for High Baseline, Low Baseline, (Circuit) Occlusion,
Apnea, PCV Not Reached, Check Prox Line, Power Switchover
(from external to internal), Low Battery and Empty Battery and
Device Alerts. The HT50-H model also provides humidifier related
alarms.
Gas delivery to the patient may be enriched with oxygen (0.21-
1.00) using either the Air Oxygen Entrainment (50 psi) Mixer
(HT460700) or the Low Flow Oxygen Blending Bag Kit
(HT600044).
There is an Auto-Lock feature that may be enabled or disabled.
The alarm loudness may be set to two different levels.
The HT50 may be operated from a variety of AC (100-240 VAC @
50 / 60 / 400 Hz) or DC (12-30 VDC) external power sources or
from the Dual Pac Internal Battery System. The Autolighter Cable
(HT460085) accessory enables connection to an automobile-type
DC outlet.
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