초록 ▼

A safety valve for use in closed systems wherein there is a flow generator delivering oxygen or some other type of breathing gas to a patient. The safety valve of the present invention vents to the open atmosphere in the event that the breathing gas generated by the flow generator diminishes or term

A safety valve for use in closed systems wherein there is a flow generator delivering oxygen or some other type of breathing gas to a patient. The safety valve of the present invention vents to the open atmosphere in the event that the breathing gas generated by the flow generator diminishes or terminates.

대표청구항 ▼

[ We claim:] [1.] A breathing safety valve having a first end and a second end, said first end secured to a flexible tubing which in turn is secured to a means to deliver a breathing gas, said second end secured to a breathing mask which is secured to a patient, said components defining a system whi

[ We claim:] [1.] A breathing safety valve having a first end and a second end, said first end secured to a flexible tubing which in turn is secured to a means to deliver a breathing gas, said second end secured to a breathing mask which is secured to a patient, said components defining a system which in a first operational mode the system is a substantially closed system, said system defined by the means to deliver a breathing gas secured to a flexible tubing which is secured to said safety valve which is secured to said mask, said safety valve comprising:(a) an outer housing, said outer housing having a gas delivery housing end and a mask housing end, said gas delivery housing end having a first shoulder, said mask housing end having a second shoulder, said second shoulder having a port therethrough for the purpose of venting the closed system to the atmosphere in a second operational mode;(b) a slider element, said slider element being configured to fit within said housing, said slider element having a third shoulder comprising an aperture therethrough, and a fourth shoulder, said slider element having at least two positions engageable within said housing, a first position wherein said fourth shoulder of said slider element substantially engages said second shoulder of said mask housing end such that said port is substantially blocked, thereby resulting in said first operational mode, a second position wherein said third shoulder of said slider element substantially engages said first shoulder of said gas housing end thereby resulting in said second operational mode; and(c) a force means applying a returning force to said slider element, said force biasing said slider element from said first position to said second position.