×

Pressure controller and leak detector for tracheal tube cuff

  • US 4,924,862 A
  • Filed: 08/19/1987
  • Issued: 05/15/1990
  • Est. Priority Date: 08/19/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. An inflation control system for an inflatable cuff of a tracheal tube connected to a ventilator having alternating inspiration and exhalation cycles, comprisingan adjustable low pressure relief valve having an inlet and an outlet and a valved exhaust port urged toward the closed condition,an adjustable high pressure relief valve having an inlet and an outlet and a valved exhaust port urged toward the closed condition requiring higher pressure to open than said exhaust port of said low pressure valve, anda cuff inflation line substantially continuously connecting the respective inlets and outlets of said low and high pressure valves in series between the cuff and a substantially continuous source of pressurized gas throughout inspiration and exhalation cycles of said ventilator.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×