초록 ▼

Tracheal gas insufflation (TGI) therapy is performed by a bypass valve and a controller which control a flow of TGI gas to a TGI catheter inserted into an endotracheal tube in the tracheal of a patient. The bypass valve is activated into a pass-through state to admit the TGI gas into the catheter an

Tracheal gas insufflation (TGI) therapy is performed by a bypass valve and a controller which control a flow of TGI gas to a TGI catheter inserted into an endotracheal tube in the tracheal of a patient. The bypass valve is activated into a pass-through state to admit the TGI gas into the catheter and into a bypass state to divert the TGI gas from the TGI catheter. Potentially dangerous over-pressure may be sensed and the TGI gas flow terminated, but then quickly resumed after the over-pressure condition passes. Selectively applying and diverting the TGI gas allows phasic TGI therapy to be performed using heated and humidified gas and also allows the heat and humidity levels of the TGI gas to be maintained during continuous TGI therapy.

대표청구항 ▼

[ The invention claimed is:] [1.]1. A tracheal gas insufflation (TGI) system, comprising:a source of breathing gas;a TGI catheter coupled to the source of breathing gas and adapted to deliver a flow of breathing gas to an airway of a patient;a controllable bypass valve operatively connected to the T

[ The invention claimed is:] [1.]1. A tracheal gas insufflation (TGI) system, comprising:a source of breathing gas;a TGI catheter coupled to the source of breathing gas and adapted to deliver a flow of breathing gas to an airway of a patient;a controllable bypass valve operatively connected to the TGI catheter and operative in a pass-through state to communicate the flow of breathing gas from the source of breathing gas to an airway of a patient, and operative in a bypass state to divert the flow of breathing gas from the TGI catheter;a controller connected to selectively activate the bypass valve into the pass-through state or the bypass state; anda pressure sensor operatively connected to the TGI catheter and adapted to supply to the controller a pressure signal related to a pressure in the TGI catheter, and wherein the controller activates the bypass valve into the bypass state in response to the pressure signal exceeding a predetermined value.