7
8700-0006-000 (Rev. 12) 08/2020
3/Description and Specifications
3.1 Description
The PTS-CVR is a lightweight, compact unit used throughout the hospital primarily for pharyngeal/tracheal suctioning
(airway management). Various models provide regulated or full-line vacuum for hospital suction procedures.
There are several models of the PTS-CVR. All models contain a vacuum gauge which indicates suction supplied by
the regulator. Each has a positive pressure safety relief valve to prevent pressurization by either failed injector vacuum
(Venturi
®
) units or inadvertent cross connection to pressurized gasses. In addition, the Low PTS-CVR models include a
vacuum relief valve to limit maximum suction.
Some models operate in a regulated or non-regulated MAX mode. Others operate only in the regulated mode.
In the non-regulated MAX mode, the vacuum source is connected directly to the fitting/patient port. The regulator module
is bypassed and full-line vacuum is provided.
In the regulated mode, the vacuum source is connected through the regulator module which functions as an automatic
valve. Turning the suction control knob adjusts the position of the regulator module and allows selection of a
predetermined level of suction when set according to instructions.
During use, as the flow requirement increases, the valve automatically opens to maintain suction at the preset level.
When the flow requirement decreases, the valve automatically closes to maintain suction at the preset level. The same
mechanism compensates for changes in supply vacuum and automatically maintains the pre-set suction level when set
according to instructions.
1. Suction Control Knob - Allows easy adjustment of suction to the patient.
2. Mode Selector Switch - Allows quick and easy mode changes.
a. | (ON) - Suction can be adjusted with the suction control knob.
b. O (OFF) - No suction is supplied to the patient.
c. MAX - Maximum full-line vacuum is supplied to the patient.
3. Vacuum Gauge - The suction level to the patient is displayed during use.
Mode
Selector
Switch
MAX
®
Vacuum
Gauge
Adapter/Probe
Port
Fitting/Patient Port
Suction
Control
Knob