Tecme NEUMOVENT, Technical Manual, Page: 4 / 94

TECHNICAL AND MAINTENANCE MANUAL
Graph VENTILATOR
Review : 04
Date: 09/05/06
1
Characteristics and Principles of Operation
Generic definition
It is a device for continuous use foreseen to control mechanically or to help the
patient’s ventilation, giving a predetermined oxygen concentration in the breathing gas
with an adjustable volume or pressure.
Intended use
Purpose and function of the NEUMOVENT Graph Ventilator:
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Lung ventilator for mechanical ventilation of medical application, electric and
pneumatically driven and microprocessor-controlled.
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The intended use is to provide continuous ventilation to patients requiring
ventilatory support. This product is intended to be used in a wide range of
patient from infants until adults and to cover a variety of clinical conditions, and
to be used in short or long terms.
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The device is intended for used in hospitals and hospital-type facilities that
provide respiratory care for patients requiring respiratory support.
Classification
Class:
llb (Rule 9). Active therapeutic devices intended to administer or exchange
energy to or from the human body in a potentially hazardous way.
Type:
Active medical Device.
Operative Mode:
Continuous.
Life Cycle:
5 years if maintenance schedule is followed.
WARNING: Do not use the ventilator in the presence of flammable anesthetics.
An explosion or fire may result.
Description
The NEUMOVENT Graph Ventilator comprises a system of related elements and
designated to alter, transmit and apply energy directly, and in a predetermined mode,
replacing or contributing with the patient's muscular capacity in the execution of the
work of breathing with the intention of achieving an efficient gas exchange.
This function of increase the mechanical support to the patient can be explained for
the following:
1. Control Mechanism. It explains how the machine can work to increase or
supplement the patient's breathing effort.
2. Control Circuit. It defines what types of devices are used to complete this task.
3. Control Variables. It defines which are the dynamic elements that control any
stage in the course of the breathing cycle.
4. Breathing Phases Variables. It explains how the ventilator responds to changes
that produce the beginning, the support and the end of the breathing cycle.
1. Control Mechanism
To understand how the machine can control the substitution or the supplementation
of the natural function of breathing, before, it is required to explain something on the
mechanics of breathing. Specifically on the pressure that is necessary to exercise to
make a flow enters to the airway and increase the volume of the lungs.