Patent ID: 8678005
Filing Date: 2014-03-25
Classification: A61M,Y10T

Abstract:
1. A valve, comprising: a main body portion comprising a trach body portion disposed adjacent to the main body portion, the trach body portion defining a third internal passage; a flapper valve sandwiched between the main body portion and the trach body portion; a first adjustment ring having a third aperture therethrough, the first adjustment ring being disposed on the main body portion so that the third aperture is in register with the first aperture, the first adjustment ring being movable with respect to the main body portion to permit alteration of the positional relationship between the first and third apertures to alter a size of a first opening defined by the first and third apertures; and a second adjustment ring having a fourth aperture therethrough, the second adjustment ring being disposed on the main body portion so that the fourth aperture is in register with the second aperture, the second adjustment ring being movable with respect to the main body portion to permit alteration of the positional relationship between the second and fourth apertures to alter a size of a second opening defined by the second and fourth apertures.