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Condition: Used - Excellent
Depth: 12 inches
Frequency (Hz): 50~60
Height: 7 inches
Width: 9 inches
The BiPAP S/T-D by Respironics, Inc. is a device used to provide non-invasive pressure support and CPAP via mask, usually nasal. BiPAP stands for Bi-level Positive Airway Pressure. The BiPAP aids oxygenation and ventilation in cases of sleep apnea or ventilatory muscle fatigue. It has also been applied to prevent the more invasive procedures of intubation or tracheostomy.
The BiPAP S/T is a low-pressure, electrically driven ventilation system with electronic pressure control. The unit’s pressure controls are adjusted to deliver pressure support for patient ventilatory assistance.
The BiPAP S/T System is primarily intended to augment patient ventilation by supplying pressurized air through a patient circuit. It senses the patient’s breathing effort by monitoring airflow in the patient circuit and adjusts its output to assist in inhalation or exhalation. This assistance is provided by the administration of two levels of positive pressure. During exhalation, pressure is variably positive or near ambient. The inspiratory level is variably positive and is always higher than the expiratory level.
The Respironics BiPAP S/T System responds to changes in patient flow rates that indicate movement to inhalation and exhalation. It can perform reliably in sensing the patient’s breathing efforts, even with the presence of most leaks in the patient circuit. Automatic adjustment of the trigger threshold in the presence of leaks make the System ideal for mask-applied ventilation assistance.
The BiPAP S/T senses air flow in the patient circuit by using a flow transducer in conjunction with the patient air outlet. The flow signal is composed of flow into the patient’s lungs and flow due to leaks in the patient circuit. This flow data is continually processed and adjustments are automatically made to trigger thresholds. The adjustments provide high sensitivity to inspiratory effort and rapid adjustment for changing leaks while minimizing inspiratory pressure lockup or auto-triggering.
This device is designed to augment the breathing of a spontaneously-breathing adult patient. Unlike ventilators, it will not completely take over the breathing for the patient, but instead helps a patient who has chronic respiratory failure, difficulty breathing, or obstructive sleep apnea; it is administered via a mask and does not require intubation of the patient. The device automatically synchronizes with the patient’s respiratory pattern, cycling between IPAP and EPAP (breath in and breath out). The S/T model can also be set to a timed mode, where the clinician sets the BPM (breaths per minute) and %IPAP; or it can be set to a combination of Spontaneous and Timed operation, where the unit cycles in response to the patient’s breathing rate, but switches to the timed operation if the patient fails to take a breath within the timed interval.
The device also analyzes flow patterns throughout each breath and makes internal adjustments for any air leaks in the system.The BiPAP S and S/T differ in that, like the abbreviations indicate, the BiPAP S is only capable of Spontaneous operation, whereas the S/T model can be programmed for both Spontaneous and Timed operation.The S/T unit can also be used for CPAP (Continuous Positive Airway Pressure) operation. In BiPAP operation, the unit gives two pressures, one for inhalation and one for exhalation, lowering the pressure during the exhale, which is often more comfortable for the patient, but some patients will require CPAP