초록 ▼

A pneumatic oxygen conserving device for efficiently dispensing oxygen or other gas used during respiratory therapy such that only the first part of the patient's breath contains the oxygen or other therapeutic gas. A gas delivery device is used which is triggered when the patient begins to inhale.

A pneumatic oxygen conserving device for efficiently dispensing oxygen or other gas used during respiratory therapy such that only the first part of the patient's breath contains the oxygen or other therapeutic gas. A gas delivery device is used which is triggered when the patient begins to inhale. A tail of gas flow is delivered to the patient after the initial inhalation timed period to prevent pulsing of gas delivery to the patient. In this manner gas is only delivered to the patient during the first portion of inhalation preventing gas from being delivered which will only fill the air passageways to the patient's lungs. By efficiently using the oxygen, cylinder bottles of oxygen used when a patient is mobile will last longer and be smaller and easier to transport. By pneumatically delivering the gas to the patient no batteries or electronics are used.

대표청구항 ▼

1. A pneumatic oxygen conserving device comprising:a breath sensor portion for detecting when a patient begins inhaling, a gas delivery timer portion connected to and triggered by the breath sensor portion, for opening a path for oxygen to flow from a source to a patient, for a controlled period of

1. A pneumatic oxygen conserving device comprising:a breath sensor portion for detecting when a patient begins inhaling, a gas delivery timer portion connected to and triggered by the breath sensor portion, for opening a path for oxygen to flow from a source to a patient, for a controlled period of time during the patient's inhalation, a gas delivery portion, connected to the path for oxygen to flow to the patient, for controlling the gas presented to the patient during inhalation, and a tail flow delivery portion connected to the gas delivery portion for maintaining the pressure of gas delivered to the patient above a threshold indicating an inhalation while the patient is inhaling to avoid multiple pulses of oxygen being sent to the patient.