Device for applying compressive pressures against a patient's limb
AssigneeThe Kendall Company
InventorJohn F. Dye
Life of this patent
Estimating the term…
Abstract
A device for applying compressive pressures against a patient's limb having a sleeve for applying pressure against a length of a patient's limb, with the sleeve having a plurality of chambers arranged longitudinally along the sleeve. The device intermittently inflates the chambers, and intermittently connects the chambers to an exhaust system during which a base static pressure is established in the chambers.
Claims29
A device for applying compressive pressures against a patient's limb during periodic compression cycles comprising:
- a sleeve for applying pressure against a length of a patient's limb, said sleeve having a plurality of chambers arranged longitudinally along the sleeve;
- means for intermittently inflating each of said chambers to provide a predetermined pressure during periodic compression cycles;
- and
- means for deflating said chambers to establish a base static pressure after each said compression cycle.
A device for applying compressive pressures against a patient's limb, comprising:
- a sleeve for applying pressure against a length of a patient's limb, said sleeve having a plurality of chambers arranged longitudinally along the sleeve;
- means for establishing a static base pressure in said chambers;
- and
- means for intermittently inflating said chambers to a pressure greater than said static base pressure and forming a compressive pressure in the chambers which decreases at intervals of time when attained from a lower portion of the sleeve to an upper portion of the sleeve.
A device for applying compressive pressures against a patient's limb, comprising:
- a sleeve for enclosing a length of a patient's limb, said sleeve having a plurality of chambers arranged longitudinally along the sleeve;
- means for intermittently inflating said chambers during periodic compression cycles;
- and
- means for intermittently connecting the chambers to an exhaust means during periodic decompression cycles;
- and
- means for establishing a static base pressure in the chambers during the decompression cycles.
A device for applying compressive pressures against a patient's limb, comprising:
- accumulator means defining a cavity for retaining a volume of fluid;
- means for forming a source of pressurized fluid in said accumulator means;
- a sleeve having a plurality of chambers arranged longitudinally along the sleeve;
- valve means for sequentially connecting the cavity to said chambers while forming a compressive pressure gradient which decreases from a lower portion of the sleeve to an upper portion of the sleeve;
- pressure relief means to permit passage of fluid at a predetermined base pressure;
- and
- means for selectively connecting the cavity to the pressure relief means to form the predetermined pressure in the accumulator means.
A device for applying compressive pressures against a patient's limb, comprising:
- a sleeve for applying pressure against a length of a patient's limb, said sleeve having a plurality of chambers arranged longitudinally along the sleeve;
- means for intermittently inflating said chambers during periodic compression cycles;
- and
- valve means for simultaneously connecting the chambers to an exhaust means and for establishing a static base pressure in the chambers.
A device for applying compressive pressures against a patient's limb, comprising:
- a sleeve for applying pressure against a length of a patient's limb, said sleeve having a plurality of compression chambers arranged longitudinally along the sleeve;
- means for intermittently inflating said chambers during periodic compression cycles;
- chamber means defining a chamber enclosing the compression chambers;
- and
- means for forming a residual pressure in the chamber of said chamber means.
Dependencies are inferred from the claim text.