HARVARD ADVANCED SAFETY VENTILATOR INSPIRA ASV, CATALOG NO. 55-7058

Description

HARVARD ADVANCED SAFETY VENTILATOR INSPIRA ASV, CATALOG NO. 55-7058
Harvard Apparatus
Advanced Safety Ventilator Volume Controlled
Model Inspira ASV
Catalog Number 55-7058
Manufacturers Description:
The Inspira is Harvard’s first ventilator that can ventilate animals from mice to cats using the same machine. Its versatility and ease of use allow safer and superior ventilation. The Inspira Ventilator uses an advanced piston/cylinder assembly and a microprocessor controlled actuation mechanism to precisely control respiration profiles. Two interchangeable piston/cylinder  assemblies are available to provide a wide range of tidal volumes. The ventilator auto-detects which cylinder, or if no cylinder, is installed. Variable flow valves control the gas flow for inhalation and exhalation.
The Inspira ASV Volume Controlled Ventilator delivers the desired tidal volume to the animal by precisely controlling the stroke of the piston. Since actual stroke length (and therefore tidal volume) may be modified for a given stroke, sigh breaths are supported. Since stroke speed is precisely controllable during inspiration and expiration, variable inspiration-to-expiration ratios are also supported. A pressure sensor continuously monitors the airway pressure to prevent over-pressure conditions. Most volume-controlled ventilators presently available do not support sigh breaths and do not provide any pressure monitoring as a safety feature.
The Inspira ASVp pressure-controlled ventilator adds pressure control capability to the ASVv volume-controlled platform. Inspiration pressure is limited to the user entered pressure setting. Flow rates are automatically adjusted by the microcontroller by changing the tidal volume while keeping the inspiration time constant. The flow rate is adjusted so that the inspiration pressure limit is reached near the end of the piston stroke, ensuring that animals with a higher airway resistance receive the majority of the expected tidal volume and that the ventilator does not prematurely terminate the piston stroke. No manual adjustment of inspiratory flow rates is
required.
The ASVp also adds PEEP capability for both the volume- and pressure-control modes. The machine allows a PEEP setting up to 10cmH2O.
Specifications:
Animal Size: 15 g to 10 kg
Volume: 0.1 to 100 ml
Port Sizes: 1/8”-27 NPT threaded nylon barbed ports, accommodates
1/16”, 1/8”, 3/16” ID Tubing (Default = 1/8” ID Tubing)
Control Modes: Volume or Assist
Breathing Rate: 5 to 200 bpm
Resolution: 1 breath/min
% Inspiratory Time: 20 to 80% of cycle time (Default = 50%)
I:E Ratio: 4:1 to 1:4 (Default = 1:1)
Inspiratory Flow: 0 to 12 SLPM
Gas Supply: Room air or nonflammable mixed gas
Inspiration Pressure:
Full Range: 5 to 50 cmH2O
Safe Range: 15 to 25 cmH2O
Accuracy: +/- 1 cmH2O
Resolution: 1 cmH2O
Sigh Frequency: 1 in 5 to 1 in 250 breaths (Default = No Sigh)
Sigh Pressure:
Full Range: Insp. Pressure to 50 cmH2O
Safe Range: Insp. Pressure to (Insp. Pressure + 10cmH2O) or 35cmH2O,
whichever is less
Respiratory Assist: Available
Assist Trigger: -1 to -10 cmH2O (Default = -5 cmH2O)
Signal Inputs:
External Trigger Input: 0 to +5 V digital pulse, active low
Signal Outputs:
Sync Out: (ASVv) 0 to +5 V digital pulse, 20 ±10 ms wide, active low
Sync Out: (ASVp) V0H for Inspiration Duration
V0L for Expiration Duration
AnalogOut1: 0 to +5 V analog (Default = Airway Pressure Signal)
Airway Pressure Signal:
Pressure Range: ±67 cmH2O (±50 mm Hg)
Sensitivity: 30 mV/cmH2O, typical (40.0 mV/mmHg, typical)
Signal Level: +0.5 to +4.5 V
Offset: +2.5 V ±0.05 V
Response: 1 ms max
AnalogOut2: 0 to +5V analog (Default = Not Used)
Remote Communications: RS232
Display: 2 line x 20 character Vacuum Fluorescent Display (VFD)
Power: AC 100 to 240 V, 50/60 Hz, 75 watts
Condition: Excellent.
Guaranteed to meet original manufacturer’s specifications.
Passes Piston and Valve Tests.
30 Day warranty.
University & Fortune 1000 Company Purchase Orders with open billing, Net 30.
Will email a PDF copy of the manual.
Has a few minor scratches
Tubing shown not included.
Overall Dimensions: 10"W x 17 ½"D x 8"H
Net Weight: 21 pound
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