Therapeutic intermittent compression apparatus
AssigneeJobst Institute, Inc.
InventorsAnsis U. Tenteris, Bruce W. Wetzel, Dennis G. Mosiniak
Life of this patent
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Abstract
An apparatus for intermittently applying compression to a portion of a patient's body enclosed in a therapeutic appliance. A timer is operated from a regulated pressurized fluid source to generate control signals to a valve which alternately inflates and deflates the appliance. The elements of the timer may be time delay valves, penumatic timing valves or fluidic elements which function to produce adjustable timing intervals for the control signals whereby the inflation and deflation intervals and the cycle time may be manually changed.
Claims21
Therapeutic compression apparatus for intermittently supplying fluid under pressure to an appliance enveloping a portion of a body to be treated, comprising:
- a source of fluid under pressure;
- timing means actuated by said fluid under pressure including a first fluid driven timer for generating a first signal during a predetermined on time interval of adjustable duration, a second fluid driven timer for generating a second signal during a a predetermined off time interval of adjustable duration, and a timing control means actuated by said fluid under pressure in response to said timing signals to alternately actuate said first and second timers;
- first means for applying fluid from said source to said timing means at a first pressure;
- second means for applying fluid from said source to said appliance at a second pressure different and independently adjustable from said first pressure;
- and
- appliance control valve means responsive to said first signal for connecting said second means for applying fluid from said source to said appliance and responsive to said second signal for venting said appliance to the atmosphere.
Therapeutic compression apparatus for intermittently supplying fluid under pressure to an appliance enveloping a portion of a body to be treated, comprising:
- a source of fluid under pressure;
- timing means actuated by said fluid under pressure including fluidic oscillator means for generating a train of timing pulses, first and second presettable counter means responsive to said pulses, and gate means for selectively coupling said oscillator means to said counter means to generate a first signal during a predetermined on time interval of a duration adjustable by the preset count of said first counter and a second signal during a predetermined off time interval of a duration adjustable by the preset count of said second counter;
- first means for applying fluid from said source to said timing means at a first pressure;
- second means for applying fluid from said source to said appliance at a second pressure independently adjustable and different from said first pressure;
- and appliance control valve means responsive to said first signal for connecting said second means for applying fluid from said source to said appliance and responsive to said second signal for venting said appliance to the atmosphere.
Dependencies are inferred from the claim text.