JET PUMP ADAPTOR FOR VENTILATION SYSTEM

摘要

In accordance with the present invention, there is provided an adaptor or attachment which is suitable for integration into the patient circuit of a ventilation system, such as a non-invasive open ventilation system, is configured for attachment to any standard ventilation mask, and is outfitted with a jet pump which creates pressure and flow by facilitating the entrainment of ambient air. The adaptor comprises a base element and a nozzle element which are operatively coupled to each other. The base element further defines a throat and at least one entrainment port facilitating a path of fluid communication between the throat and ambient air. The nozzle element includes a jet nozzle, and a connector which is adapted to facilitate the fluid coupling of the nozzle element to a bi-lumen tube of the patient circuit. The connector includes both a delivery port and a sensing port. The jet nozzle and the delivery port collectively define a delivery line or lumen which fluidly communicates with the throat of the base element, and is placeable into fluid communication with the delivery lumen of the bi-lumen tube.

主权项

1. A adaptor for fluidly for coupling a flow generator to a ventilation mask in a respiratory assistance system, the adaptor comprising:
a base element which is fluidly connectible to the ventilation mask, the base element defining a throat and at least one entrainment port which fluidly communicates with the throat; and a nozzle element which is connected to the base element and is fluidly connectible to a main gas delivery tube in fluid communication with the flow generator, the nozzle element including a jet nozzle which protrudes into the throat proximate the entrainment port and at least partially defines a gas delivery lumen fluidly communicating with the throat.