Newport Medical HT70
Newport Medical · Model HT70
Versatility to Meet You Needs. The Newport HT70® Ventilator combines ease of use, clinical finesse, exceptional portability, and ruggedness in one compact package. Designed for patients? 5kg to adult, the HT70 is ideal for home care, transport, hospital, longterm care, and emergency preparedness applications for invasive or noninvasive ventilation. The full color touch screen is easy to navigate and offers specific screens for homecare, transport and hospital applications, default or customizable presets, Alarm Quickset and Help functions. Developed and manufactured entirely by Newport Medical in California, USA, the compact HT70 features a newly designed, patented, micro-piston technology that eliminates the need for external compressed gas. The hot swappable integrated battery system provides up to 10 hours of operation at standard settings and can be fully recharged in only 3 hours. For a long transport, a full day at the park or in case of a power emergency, the HT70 allows for virtually continuous operation.
Key tips
- ·Never disable a low-pressure/circuit-disconnect alarm while troubleshooting - silence it, don't disable it.
- ·Verify the O2 supply source and pressure before assuming an internal fault.
- ·Circuit type must match the patient population (adult/pediatric/neonatal) - a mismatched circuit invalidates delivered volumes.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Fails the pre-use self-test / circuit check
HighSymptoms: Self-test fault, circuit-leak or compliance-check failure, will not be released for use.
Root cause: Patient-circuit / expiratory-valve leak, a flow-sensor fault, an O2-cell fault, or an internal pneumatic fault.
Flow / volume delivery inaccurate
HighSymptoms: Delivered tidal volume or flow does not match the setting, or fails the annual verification.
Root cause: Flow-sensor drift / contamination, an inspiratory / expiratory valve fault, or a blender / proportioning-valve fault.
O2 / air supply or blender fault
MediumSymptoms: Low-supply alarm, FiO2 not matching the setting, O2-cell reads wrong.
Root cause: Wall / cylinder supply issue, an inlet filter / regulator fault, the blender, or an aged O2 cell.
PEEP not held / high circuit pressure
MediumSymptoms: PEEP drifts, auto-PEEP, high-pressure alarms, poor exhalation.
Root cause: Worn or wet expiratory valve / diaphragm, or a blocked exhalation path.
Battery / power fault
MediumSymptoms: Short internal-battery run time, will not charge, transfers to battery unexpectedly.
Root cause: Aged internal battery or a power-supply fault.
Turbine / compressor fault (turbine units)
MediumSymptoms: Noisy operation, cannot meet flow demand, turbine / compressor alarm.
Root cause: Worn turbine / compressor.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Flow sensor(s)
Class Frequent wear itemRel. cost $$R&R Fairly easy
Expiratory valve / diaphragm
Class Frequent wear itemRel. cost $$R&R Fairly easy
O2 cell / sensor
Class Frequent wear itemRel. cost $$R&R Easy
Internal battery
Class Periodic replacementRel. cost $$R&R Fairly easy
Inlet filters / water traps
Class Frequent wear itemRel. cost $R&R Easy
Turbine / compressor (turbine units)
Class Major service partRel. cost $$$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Flow sensor(s) | Frequent wear item | $$ | Fairly easy |
| Expiratory valve / diaphragm | Frequent wear item | $$ | Fairly easy |
| O2 cell / sensor | Frequent wear item | $$ | Easy |
| Internal battery | Periodic replacement | $$ | Fairly easy |
| Inlet filters / water traps | Frequent wear item | $ | Easy |
| Turbine / compressor (turbine units) | Major service part | $$$$ | Difficult |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily pre-use check: self-test, circuit integrity, alarm function
- ·Scheduled circuit and inspiratory filter replacement per manufacturer interval
- ·Flow and pressure sensor calibration verification
- ·Battery load test and runtime check
- ·Annual full PM and electrical safety test
Error Codes
Extracted directly from this unit's own service manual.
hP (High Pressure)High 4 to 99 cmH 2 O / 4 to 99 mbar
iP (Low Pressure)High NIV Off: 3 to 98 cmH 2 O / 3 to 98 mbar (limited by PEEP + 3); 2 breath delay NIV On: 1 to 98 cmH 2 O / 1 to 98 mbar (limited by PEEP + 1); 3 breath delay
Apnea High5 - 70 seconds
hVTEMed OFF, 0.06 to 2.2 Liters
hO 2Med Off, 24 - 100, only available when O 2 Sensor is enabled
iO 2Med Off, 22- 98, only available when O 2 Sensor is enabled
Low Baseline PressureHigh Paw < PEEP minus 2 cmH 2 O/mbar for 3 sec
High Baseline PressureHigh Paw 5 above set PEEP at onset of a time-triggered breath
Check CircuitHigh Circuit may be disconnected or proximal pressure line may be pinched or blocked
No External PowerLoss of External power, automatic switchover to Internal Dual Battery System
OcclusionHigh An occlusion or restriction in the circuit that interferes with exhalation
Occlusion - SustainedHigh Occlusion continues for 10 sec or 2 breath periods, whichever is shorter
Device AlertHigh Ventilator malfunction, Device Alert LED lights red WARNING Use alternate ventilation source until malfunction is identified and corrected.
Shut Down AlertHigh Silence by pressing Alarm Silence/Reset button
Motor FaultHigh Hardware detected fault in the motor drive circuit has occurred
Internal TemperatureLow Internal temperature is > 60° C
Backup Battery TemperatureLow Backup Battery temperature is > 60° C
Power Pac Battery TemperatureLow Power Pac Battery temperature is > 60° C
Power Pac Battery LowMed Less than 2 Ah of charge is left on Power Pac battery pack
Backup Battery LowHigh Backup Battery has insufficient charge, less than 1Ah
Backup Battery HighHigh Backup Battery is extremely low and will lose power very soon. Connect to external power or insert new Power Pac battery pack
Backup Battery FailureHigh Indicates a failure in Backup Battery due to communication failure with host processor or capacity is below 1 Ah
Flow Sensor disconnectMed Flow sensor is no longer detected or is faulty
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Fails the pre-use self-test / circuit check
- Run the self-test with the exact circuit, filter and humidifier that will be used.
- Leak-test the circuit and the expiratory valve; fit fresh flow sensors and an O2 cell if due.
- Repeat the self-test and note which check fails.
- Calibrate the flow sensors and O2 cell per the manual.
- Remove from service and refer an internal pneumatic fault to the OEM / biomed.
Symptom: Delivered tidal volume / flow or FiO2 inaccurate
- Verify tidal volume and flow with a calibrated gas-flow analyser and FiO2 at the wye with an O2 analyser.
- Calibrate the flow sensors and the O2 cell.
- Inspect the inspiratory and expiratory valves / diaphragms.
- Check the air and O2 supply pressures and the inlet filters / water traps.
- Refer the blender / proportioning valve if the mix is still wrong.
Symptom: PEEP not held / high circuit-pressure or auto-PEEP
- Inspect the expiratory valve / diaphragm for wear or moisture and replace it.
- Check the exhalation path and the expiratory flow sensor.
- Confirm the circuit and water trap are not obstructed.
- Run the valve / compliance calibration.
- Re-verify PEEP against the analyser.
Symptom: Low-supply / O2 alarm or turbine / compressor fault
- Confirm wall / cylinder supply pressure and the inlet hose and filter.
- Check the internal blender / regulator.
- For a turbine unit, listen for turbine noise and check it can meet flow demand.
- Replace the O2 cell if the FiO2 reading is the issue.
- Refer the turbine / compressor for replacement if it cannot meet demand.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- ICU / CCU
- Emergency Department
- Operating Room (anesthesia-adjacent)
- NICU
- Respiratory Therapy department
- Patient transport
Documents & Manuals
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
Medtronic is issuing a voluntary field corrective action for all its Newport" HT70 and Newport" HT70 Plus ventilators because they may shutdown spontaneously during normal operation without an accompanying alarm.
- RECALL
Newport Medical Instruments is conducting a voluntary recall on certain Newport Medical Instruments HT70 and HT70 Plus ventilator Power Pac batteries due to customer reports of Newport HT70 and HT70 Plus ventilators alarming and going to internal backup battery sooner than expected while the ventilator is being operated on Power Pac battery.
- RECALL
May emit a continuous high priority alarm and the ventilator may stop ventilating, due to a component failure on the control board.
- RECALL
The recall was initiated because Newport Medical has confirmed a limited number of power cords recently received from their supplier, Glob-Tek, have a slightly oversized plug connector which prevents the cord from locking into place. These cords are fully functional as supplied. However, the cord can be easily disconnected. If the cord is disconnected, the HT70 will alert the user with a power di
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