Reliable ventilator system for rodents and larger animals
The SAR-830/AP Small Animal Ventilator is a ver- satile and easy-to use ventilator for a variety of labora- tory animals. It can operate in volume or pressure- cycled modes.
12-05000 CTP-VA-3 External Valve Assembly, rabbit, cat, small dog size
12-10010 MVA-4 Electrical adapter for adding up to four external valve assemblies
12-10020 EFM-1 Flowmeter/regulator with stand, specify range: 1, 2.5, 5, 10 or 20 liters/min
12-10021 EFM-4 Flowmeter/regulator manifold w/ four flowmeters on stand, specify ranges
12-10032 OPTION 023 External air pump, 8 liter/min range
12-10033 OPTION 024 External air pump, 16 liter/min range
13-21031 TRACH-1 Endotracheal tube, flexible Teflon with Luer connector (mouse), pack of 5
13-21032 TRACH-2 Endotracheal tube, flexible Teflon with Luer connector (rat), pack of 5
13-13000 Isoflurane Kit Complete anesthesia kit for Isoflurane includes vaporizer, fittings, flowmeter, & tubing
VOLUME MODE delivers a fixed tidal vol- ume on each breath, and PRESSURE MODE causes infla- tions to stop at a preset airway pressure. A built-in air pump provides completely self-contained operation. These ventilators are suitable for use with animals in the mouse to Guinea pig range of body weights, and can be expanded to larger animals using simple plug-in external valves.
Fixed volumes are generated by gating a known air- flow into the lungs for a set inspiratory time: the well- known flow-time principle. Only three controls — RESPI- RATORY RATE, INSPIRATORY TIME, and FLOW RATE are nec- essary to produce tidal volumes, respiratory rates, and I/E ratios over a wide range. A bar-graph display shows airway pressure in any mode of operation.
Operation
RESPIRATORY RATE in breaths/min is directly dialed in and shown on the digital display. INSPIRATION TIME in sec- onds is set with a 10-turn dial. INSPIRATORY FLOW is adjusted using the front-panel flowmeter. In pressure mode, the end-inspiratory PRESSURE is set in cmH2O. During inspiration, airflow is introduced into the lungs until this pressure is reached, at which point inspiration is terminated. PRESSURE MODE is especially useful for very small animals, where hyperinflation of the lungs can be a problem. PRESSURE or VOLUME mode is select- ed with a single switch. Model SAR-830/AP Small Animal Ventilator
Expandability
These units can easily be expanded to ventilate multiple small animals simultaneously by adding exter- nal valve assemblies. A metered flow source is required for each external valve assembly. These external valves are available for animals ranging from mice to cats in size. Refer to the accessories list for details.
The SAR-830/AP is easily connected to anesthesia sources. A built-in data port can be used to provide remote-control of ventilator operation.
NOTE 1: Using internal valves. External valve assemblies available for larger animals provide up to 350ml volumes.
NOTE 2: Rat – Guinea pig. Mouse Kit provides special low range flowmeter and mouse-compatible tubing set.
SAR-830 Ventilator Accessories and Options
External Valve Assemblies
External valve assemblies (CTP-VA-x series) are used to expand the number of animals being ventilated, or to ventilate larger animals than can be accommodated with the standard SAR-830. The valve assembly connects to the ventilator through a supplied 12’ cable, and acts as a slave to the SAR-830. The CTP-VA-1 is equivalent to
the standard SAR-830 internal valves, and is used to create one or more additional ventilator stations. To connect more than one valve assembly, an MVA-4 electrical adapter is required. A controlled flow source is required for each external valve assembly. Tubing and connectors are supplied.
Flowmeter/Regulators
A regulated flow source is required for each external valve assembly attached to an SAR-830. Flowmeters are available as single units or as four-flowmeter manifolds. The flowmeter manifolds can be used to mix anesthetic gasses, or as independent flowmeters for multiple valve assemblies. Digital mass flowmeters are also available where the highest accuracy is required.
Adapters and Miscellaneous
The MVA-4 Multi-Valve Adapter allows up to four CTP-VA-1 valve assemblies to be attached to one SAR-830 series ventilator, for a total of five ventilator stations. Up to four CTP-VA-1 valve assemblies can be powered by one SAR-830 ventilator or two CTP-VA-3’s, due to power supply constraints.
Anesthesia
Connecting an anesthesia system to the SAR-830 is straightforward. The recommended method is to use a rubber compliance bag that is kept filled with the anesthetic mixture, and is attached to the inlet of the ventilator. This method prevents backpressure on the vaporizer, and allows the ventilator to draw in the gas as needed. See our Anesthesia Brochure for details.
Remote control options
Every SAR-830 series ventilator has a built-in remote control port that operates with a few TTL logic inputs. We can provide Labview programs and a small data acquisition adapter that allow advanced remote control oper- ations. These include neural-controlled ventilation, constant CO2 operation, complex breathing patterns, and more. Contact us for more information!
