Patent · US Active

Non-invasive breathing assistance device with flow director

US8567400B2 · kind B2 · utility

5Cited by
28References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 5, 2010
Grant dateOct 29, 2013
Priority date—
Expiry dateJul 30, 2031

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61M16/0666
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

An nCPAP device for assisting patient breathing includes a generator body forming an inlet, a chamber, and first and second flow circuits. The chamber directs pressurized gas from the inlet to the flow circuits. The flow circuits each include a first and second jets, a flow director and an exhaust conduit. The jets emit a jetstream into the flow director in a direction of a patient side thereof. In some embodiments, the flow director forms a first tapered wall section directing inhaled air toward the patient and a second tapered wall section directing exhaled air toward the exhaust conduit. The generator body requires reduced driving pressures to achieve target CPAP levels and reduces total imposed WOB as compared to conventional designs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.