Term
| What is a basic functions of mechanical ventilators? |
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Definition
- Power Input
- Control Scheme
- Output
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Term
| What are the two forms of input power for ventilators? |
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Definition
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Term
| What are the benefits of using electric ventilators? |
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Definition
Electric ventilators use AC voltage to power drive mechanisms.
This voltage can also be reduced and converted to DC voltage to power control circuits.
Most are designed to use rechargable batteries when AC is not available. |
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Term
| What are the three type of ventilator batteries? |
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Definition
- Lead-acid
- NiCad
- Lithium-ion
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Term
| What are the characteristics of a lead-acid ventilator battery? |
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Definition
- It supplies 2.5amp hours of energy.
- It powers a ventilator up to one hour.
- It requires 8 to 12 hours to recharge.
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Term
| What are the characteristics of a Nickel-cadium(NiCad) battery? |
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Definition
| These types of batteries develop memory and require complete discharge before recharging. This require careful monitoring of power during use. |
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Term
| What is the advantage of a lithium-ion battery over a NiCad battery? |
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Definition
- longer charge
- lower weight
- faster recharge time
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Term
| How do pneumatic ventilators work? |
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Definition
| Pressure from compressed air and O2 power the ventilator and can power the control circuits via pressure reducing regulators. |
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Term
| What is the advantages of pneumatic powered ventilators over electric powered ventilators? |
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Definition
| Pneumatic powered ventilators can work in environments where electric power is unavailable (transport) or undesirable (MRI equipment). |
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