WO2004041146A1 - Systeme de compression pneumatique portable automatique - Google Patents

Systeme de compression pneumatique portable automatique Download PDF

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Publication number
WO2004041146A1
WO2004041146A1 PCT/IL2003/000927 IL0300927W WO2004041146A1 WO 2004041146 A1 WO2004041146 A1 WO 2004041146A1 IL 0300927 W IL0300927 W IL 0300927W WO 2004041146 A1 WO2004041146 A1 WO 2004041146A1
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WO
WIPO (PCT)
Prior art keywords
cell
intra
pressure
inflatable
compartments
Prior art date
Application number
PCT/IL2003/000927
Other languages
English (en)
Inventor
Sarit Gelbart
Amir Fabian
Jacob Barak
Yaakov Nizan
Original Assignee
Medical Compression Systems (D.B.N.) Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medical Compression Systems (D.B.N.) Ltd. filed Critical Medical Compression Systems (D.B.N.) Ltd.
Priority to AU2003276663A priority Critical patent/AU2003276663A1/en
Priority to EP03810572A priority patent/EP1699409A1/fr
Publication of WO2004041146A1 publication Critical patent/WO2004041146A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H9/00—Pneumatic or hydraulic massage
    • A61H9/005—Pneumatic massage
    • A61H9/0078—Pneumatic massage with intermittent or alternately inflated bladders or cuffs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/10—Leg

Definitions

  • the present invention relates to medical devices for applying pressure to a region of a body surface. More particularly, the present invention relates to medical devices that use a pressure sleeve and a pressure accumulator to apply pressure to a region of a body surface.
  • the present invention relates to systems for applying compressive pressures against a patient's limb, specifically to a miniaturized, automatic portable battery and/or main power supply operated ambulant system.
  • the sleeve of the conventional compression device is big and ungainly, and thus restricts the movement of the limb it encompasses and imposes discomfort.
  • the use of multiple cells demands the use of multiple conduits (usually one for each cell) making the whole system more cumbersome and harder to maneuver.
  • data corresponding to the pressure and compression cycles of the conventional compression systems has to be manually entered into the system by the clinical staff each time the system is turned ON.
  • the error detecting mechanism of the conventional systems shuts OFF the system each time an error is detected, the system needs to be manually restarted by the clinical staff, thereby requiring the clinical staff to manually re-enter the data corresponding to the pressure and compression cycles.
  • the conventional compression devices need large compressors that require high current supply, which forces the connection to the electrical outlets for power supply.
  • relatively large components in the conventional compression devices such as solenoids, air conduits etc.
  • US Patent Numbers 5,795,312; 5,626,556; 4,945,905; and 5,354,260, and 6,290,662 are concerned with using less air to inflate the sleeves, easier handling, and all of the other disadvantages previously discussed.
  • a region of the body surface it is desirable to apply pressure to a region of the body surface.
  • this is accomplished by fixing one or more individually inflatable cells to the body surface.
  • the cells When the cells are inflated, a pressure is applied to the body surface in contact with the cell. When the cell is deflated, the pressure is relieved.
  • the cells are usually incorporated into a sleeve that is placed around a body limb to be treated.
  • the limb may be, for example, a leg, an arm, a hand, a foot, or the trunk.
  • the cells may be toroidal in shape when inflated so as to completely surround the limb.
  • a cell may be maintained in an inflated state for a prolonged period of time in order to apply prolonged pressure to the underlying body region.
  • a cell may be inflated and deflated periodically so as to apply intermittent pressure to the underlying body region.
  • a sleeve having one or more individually inflatable cells will be referred to herein as a pressure sleeve
  • Figure 16 shows schematically a prior art system for applying pressure to a body limb.
  • the system uses a pressure sleeve (not shown) comprising one or more individually inflatable cells.
  • the system also includes a console 615 containing a compressor 602 that generates pressurized air.
  • a conduit 607 conducts the flow of pressurized air away from the compressor 602.
  • a number of solenoid valves (605a, 605b, and 605c) equal to the number of cells in the pressure sleeve are positioned along the conduit 607.
  • Each valve (605a, 605b, and 605c) has an air inlet connected to an upstream portion of the conduit 607, a first air outlet connected to a downstream portion of the conduit 607, and a second air outlet (611a, 611b, and 611c) connected to an associated cell via a conduit (614a, 614b, and 614c).
  • Each valve can alternate between an open state in which pressurized air can flow between the inlet and the first outlet and the second outlet (611a, 611b, and 611c) and a closed state in which pressurized air can flow between the inlet and the first outlet, but not between the inlet and the second outlet (611a, 611b, and 611c).
  • the console 615 further comprises a processor 619 that controls the state of each of the valves (605a, 605b, and 605c) so as to execute a predetermined temporo-spatial array of inflation of the cells. For example, in one application the cells are inflated peristaltically so that one cell is first inflated, while the other cells are deflated. As illustrated in Figure 16, this can be accomplished by the processor 619 opening the valve 605a while the valves 605b and 605c are closed. Pressurized air flows in the conduit 607 from the compressor 602 into the cell associated with conduit 614a. The processor 619 monitors the air pressure in the conduit 607 by means of a pressure gauge 603.
  • the processor 619 closes the valve 605a.
  • the cell associated with conduit 614b is inflated by opening the valve 605b.
  • a one-way valve 625 prevents the flow of air in the conduit 607 from flowing from the valves (605a, 605b, and 605c) towards the compressor 602.
  • the cell associated with conduit 614a is then deflated and the cell associated with conduit 614c is inflated.
  • the cells associated with conduit 614b and 614c are then deflated, and the cycle can begin again.
  • the console 615 has a housing 620 containing the processor 619, the conduit 607 and the valves (605a, 605b, and 605c).
  • the compressor 602 may be located within the housing of the console 615 as shown in Figure 16.
  • FIG 17 shows schematically another conventional compression system for applying pressure to a body limb inco ⁇ orating a pressure accumulator 740.
  • This conventional compression system contains several components in common with the conventional compression system shown in Figure 16.
  • a solenoid valve 705a is positioned on the conduit 707 upstream from the valves (705b, 705c, and 705d).
  • the valve 705a has an air inlet connected to an upstream portion of the conduit 707, a first air outlet connected to a downstream portion of the conduit 707, and a second air outlet connected to the pressure accumulator 740 via a conduit.
  • the valve 705a can realize an open state in which flow of fluid may occur between the inlet, the first outlet, and the second outlet.
  • the valve 705a can also realize a closed state in which flow of fluid may occur between the inlet and the first outlet but not between the second outlet and the inlet or between the second outlet and the first outlet.
  • the processor 719 determines the operational state of valve 705a.
  • the conventional compression system shown in Figure 17 is used when it is desired to apply pressure rapidly to a portion of a body limb underlying the cell.
  • the valve 705a is opened while the valves (705b, 705c, and 705d) are closed, causing pressurized air to flow in the conduit 707 from the compressor 702 through the valve 705a into the accumulator 740.
  • the processor 719 opens the valve 705b causing air to flow from the accumulator 740 into the cell associated with value 705b.
  • the pressure in the cell associated with valve 705b will rise rapidly to a pressure P c .
  • the valves 705b, 705c, and 705d are then operated as described in reference to the system of Figure 16.
  • Systems of the type shown in Figure 17 having an accumulator inside the console are disclosed, for example, in US Patent Numbers 4,653,130 and 5,307,791 to Senoue et al.; 5,027,797 to Bullard; 5,840,049 to Tumey et aL; and 5,588,955, to Johnson et al.
  • a compression system that is suitable for home use and can be stored easily. Moreover, it is desirable to provide a compression system that allows a user to engage in social activities during treatment. Lastly, it is desirable to provide a compression system that is includes a pressure accumulator that is small, ambulant, and portable.
  • a first aspect of the present invention is a compression system for applying therapeutic pressure to a limb of a body.
  • the compression system includes a pressure sleeve; a compression system console, pneumatically connected to the pressure sleeve, having a controller to provide controlled pressurized fluid to the pressure sleeve; and a pressure accumulator, flexibly tethered and pneumatically connected to the compression system console, to provide controlled pneumatic compression.
  • a third aspect of the present invention is a compression system for applying therapeutic pressure to a limb of a body.
  • the compression system includes a pressure sleeve; a compression system console, pneumatically connected to the pressure sleeve, having a controller to provide controlled pressurized fluid to the pressure sleeve; and a pressure accumulator integral to the pressure sleeve, pneumatically connected to the compression system console, to provide controlled pneumatic compression.
  • a fifth aspect of the present invention is a therapeutic foot system.
  • the therapeutic foot system includes a pressure sleeve; a compression system console, pneumatically connected to the pressure sleeve, having a controller to provide controlled pressurized fluid to the pressure sleeve; a sole member; and a pressure accumulator provided in the sole member and operatively pneumatically connected to the pressure sleeve.
  • a seventh aspect of the present invention is a therapeutic foot system.
  • the therapeutic foot system includes a pressure sleeve; a compression system console, pneumatically connected to the pressure sleeve, having a controller to provide controlled pressurized fluid to the pressure sleeve; and a pressure accumulator, operatively pneumatically connected to the pressure sleeve and flexibly tethered and pneumatically connected to the compression system console, to provide controlled pneumatic compression.
  • An eighth aspect of the present invention is a therapeutic pressure system.
  • the therapeutic pressure system includes a pressure sleeve and a compression system console, pneumatically connected to the pressure sleeve, having a controller to provide controlled pressurized fluid to the pressure sleeve.
  • the controller upon entering a first mode, identifies a type of the pressure sleeve connected to the compression system console.
  • a ninth aspect of the present invention is a method of providing therapy with a pressure sleeve and a compression system console, pneumatically connected to the pressure sleeve, having a controller and a plurality of air conduit terminals to provide controlled pressurized fluid to the pressure sleeve.
  • the method polls each air conduit terminal to determine a state thereof; determines automatically a type of pressure device connected to an air conduit terminal from the polling; determines automatically a treatment sequence and pressures based on the types of pressure devices connected to the air conduit terminals; and applies therapeutic pressure to a patient based on the determined treatment sequence.
  • a tenth aspect of the present invention is a method of providing therapy with a pressure sleeve and a compression system console, pneumatically connected to the pressure sleeve, having a controller and a plurality of air conduit terminals to provide controlled pressurized fluid to the pressure sleeve.
  • the method polls each air conduit terminal to determine a state thereof; determines automatically a type of pressure device connected to an air conduit terminal from the polling; determines automatically a pressure to be applied based on the types of pressure devices connected to the air conduit terminals; and applies therapeutic pressure to a patient based on the determined pressure.
  • a twelfth aspect of the present invention is a device for applying pressure to a body limb having a primary axis.
  • the device includes first and second inflatable cells, each of the first and second inflatable cells including at least three intra-cell compartments, the intra-cell compartments being confluent, each compartment being elongated along a longitudinal axis and being substantially rectangular in shape when deflated and substantially cylindrical in shape when inflated, the first and second inflatable cells being longitudinally adjacent each other and arranged coaxially with respect to the primary axis of the limb when engaged with a limb, the first and second inflatable cells each including inner and outer shells of durable flexible material, the inner and outer shells being bonded together to form a perimetric bond about a perimeter of the inflatable cell, the perimetric bond defining the inflatable cell as a volume between the inner and outer shells and within the perimetric bond, the inner and outer shells being further bonded together to form a plurality of compartmental bonds within the inflatable cell bond, the plurality of compartmental bonds defining
  • the automatic portable ambulant system includes a sleeve including first and second inflatable cells, the first and second inflatable cells each including at least three intra-cell compartments, the intra-cell compartments being confluent, the intra-cell compartments being elongated along a longitudinal axis and being substantially rectangular in shape when deflated and substantially cylindrical in shape when inflated, the first and second inflatable cells being longitudinally adjacent to each other so as to be adapted to be arranged coaxially with respect to a primary axis of a body limb, the first and second inflatable cells each including inner and outer shells of durable flexible material, the inner and outer shells being bonded together to form a perimetric bond about a perimeter of the inflatable cell, the perimetric bond defining the inflatable cell as a volume between the inner and outer shells and within the perimetric bond, the inner and outer shells being further bonded together to form a plurality of compartmental bonds within the inflatable cell bond,
  • a further aspect of the present invention is a method for immobilizing a fractured bone in a limb.
  • the method couples outermost intra-cell compartments of a sleeve around a limb, the sleeve comprising at least one inflatable cell, each including at least three intra-cell compartments, the intra-cell compartments being confluent and elongated along a longitudinal axis and being substantially rectangular in shape when deflated and being substantially cylindrical in shape when inflated, the longitudinal axes of the compartments substantially aligning with the primary axis of the limb, wherein the inflatable cells each comprise inner and outer shells of durable flexible material, the inner and outer shells being bonded together about a perimetric cell bond to define the inflatable cell therebetween, the inner and outer shells being further bonded together along compartmental bonds within the perimetric cell bond to define the plurality of intra-cell compartments, wherein the perimetric cell bond includes upper and lower perimetric cell bonds extending substantially in a- lateral direction, and left and right peri
  • the device includes first and second inflatable cells, the first and second inflatable cells each including at least three intra-cell compartments, the intra- cell compartments being confluent, the intra-cell compartments being elongated along a longitudinal axis and being substantially rectangular in shape when deflated and substantially cylindrical in shape when inflated, the first and second inflatable cells being adjacent each other and arranged coaxially with respect to the primary axis of the limb, the first and second inflatable cells each including inner and outer shells of durable flexible material, the first and second inflatable cells each including inner and outer shells of durable flexible material, the inner and outer shells being bonded together to form a perimetric bond about a perimeter of the inflatable cell, the perimetric bond defining the inflatable cell as a volume between the inner and outer shells and within the perimetric bond, the inner and outer shells being further bonded together to form a plurality of compartmental bonds within the inflatable cell bond, the plurality of compartment
  • a further aspect of the present invention is an automatic portable ambulant system for applying pressure to a body limb.
  • the system includes a sleeve including first and second inflatable cells, the first and second inflatable cells each including at least three intra-cell compartments, the intra-cell compartments being confluent, the intra-cell compartments being elongated along a longitudinal axis and being substantially rectangular in shape when deflated and substantially cylindrical in shape when inflated, the first and second inflatable cells being adjacent each other and arranged coaxially with respect to the primary axis of the limb, the first and second inflatable cells each including inner and outer shells of durable flexible material, the inner and outer shells being bonded together to form a perimetric bond about a perimeter of the inflatable cell, the perimetric bond defining the inflatable cell as a volume between the inner and outer shells and within the perimetric bond, the inner and outer shells being further bonded together to form a plurality of compartmental bonds within the- inflatable cell bond, the plurality of compartmental bonds defining at least three intra
  • the device includes an inflatable cell, the inflatable cell including at least two intra-cell compartments, the intra-cell compartments being confluent to allow for confluent air flow between adjacent intra-cell compartments within the cell, adjacent intra-cell compartments being spatially fixed relative to each other, such that upon inflation, the cell becomes circumferentially constricted, the inflatable cell having a first circumference value when the intra-cell compartments are deflated and a second circumference value when the intra-cell compartments are inflated, the second circumference value being less than the first circumference value so as to provide for circumferential constriction, the first circumference value being a length between the outermost intra-cell compartments of the sleeve when laterally uncoupled and deflated, the second circumference value being a length between the outermost intra-cell compartments of the sleeve when laterally uncoupled and inflated.
  • a further aspect of the present invention is an automatic portable ambulant system for applying pressure to a body limb.
  • the system includes an inflatable cell, the inflatable cell including at least two intra-cell compartments, the intra-cell compartments being confluent, each compartment being elongated in a direction of the primary axis, the inflatable cell further including inner and outer shells of durable flexible material, the inner and outer shells being bonded together about a perimetric cell bond, the inner and outer shells being further bonded together along compartmental bonds within the perimetric cell bond to define each intra-cell compartment, the perimetric cell bond including upper and lower perimetric cell bonds, the compartmental bonds partly extending between the upper and lower perimetric cell bonds, the compartmental bonds including perforations to allow for confluent air flow between adjacent intra-cell compartments within the cell, adjacent intra-cell compartments being spatially fixed relative to each other, such that upon inflation, the cell becomes circumferentially constricted, the inflatable cell having a first circumference value when the intra-cell compartments are deflated
  • the device includes first and second inflatable cells, each of the first and second inflatable cells including at least three intra-cell compartments, the intra-cell compartments being confluent, each compartment being elongated along a longitudinal axis and being substantially rectangular in shape when deflated and substantially cylindrical in shape when inflated, the first and second inflatable cells being longitudinally adjacent each other and arranged coaxially with respect to the primary axis of the limb when engaged with a limb, the first and second inflatable cells each including inner and outer shells of durable flexible material, the inner and outer shells being bonded together to form a perimetric bond about a perimeter of the inflatable cell, the perimetric bond defining the inflatable cell as a volume between the inner and outer shells and within the perimetric bond, the inner and outer shells being further bonded together to form a plurality of compartmental bonds within the inflatable cell bond, the plurality of compartmental bonds defining at least three intra-cell compartments
  • the automatic portable ambulant system includes a sleeve including first and second inflatable cells, the first and second inflatable cells each including at least three intra-cell compartments, the intra-cell compartments being confluent, the intra-cell compartments being elongated along a longitudinal axis and being substantially rectangular in shape when deflated and substantially cylindrical in shape when inflated, the first and second inflatable cells being longitudinally adjacent to each other so as to be adapted to be arranged coaxially with respect to a primary axis of a body limb, the first and second inflatable cells each including inner and outer shells of durable flexible material, the inner and outer shells being bonded together to form a perimetric bond about a perimeter of the inflatable cell, the perimetric bond defining the inflatable cell as a volume between the inner and outer shells and within the perimetric bond, the inner and outer shells being further bonded together to form a plurality of compartmental bonds within the inflatable cell bond,
  • a further aspect of the present invention is an automatic portable ambulant system for applying pressure to a body limb.
  • the system includes a sleeve including first and second inflatable cells, the first and second inflatable cells each including at least three intra-cell compartments, the intra-cell compartments being confluent, the intra-cell compartments being elongated along a longitudinal axis and being substantially rectangular in shape when deflated and substantially cylindrical in shape when inflated, the first and second inflatable cells being adjacent each other and arranged coaxially with respect to the primary axis of the limb, the first and second inflatable cells each including inner and outer shells of durable flexible material, the inner and outer shells being bonded together to form a perimetric bond about a perimeter of the inflatable cell, the perimetric bond defining the inflatable cell as a volume between the inner and outer shells and within the perimetric bond, the inner and outer shells being further bonded together to form a plurality of compartmental bonds within the inflatable cell bond, the plurality of compartmental bonds defining at least three intra-
  • a still further aspect of the present invention is a device for applying pressure to a body limb having a primary axis.
  • the device includes an inflatable cell; the inflatable cell including at least two intra-cell compartments, the intra-cell compartments being confluent, each intra-cell compartment being elongated in a direction of the primary axis, the inflatable cell further including inner and outer shells of durable flexible material, the inner and outer shells being bonded together about a perimetric cell bond, the inner and outer shells being further bonded together along compartmental bonds within the perimetric cell bond to define each intra-cell compartment, the perimetric cell bond including upper and lower perimetric cell bonds, the compartmental bonds partly extending between the upper and lower perimetric cell bonds, the compartmental bonds including perforations to allow for confluent air flow between adjacent intra-cell compartments within the cell, adjacent intra-cell compartments being spatially fixed relative to each other, such that upon inflation, the cell becomes circumferentially constricted.
  • a further aspect of the present invention is an automatic portable ambulant system for applying pressure to a body limb.
  • the system includes an inflatable cell, the inflatable cell including at least two intra-cell compartments, the intra-cell compartments being confluent, each compartment being elongated in a direction of the primary axis, the inflatable cell further including inner and outer shells of durable flexible material, the inner and outer shells being bonded together about a perimetric cell bond, the inner and outer shells being further bonded together along compartmental bonds within the perimetric cell bond to define each intra-cell compartment, the perimetric cell bond including upper and lower perimetric cell bonds, the compartmental bonds partly extending between the upper and lower perimetric cell bonds, the compartmental bonds including perforations to allow for confluent air flow between adjacent intra-cell compartments within the cell, adjacent intra-cell compartments being spatially fixed relative to each other, such that upon inflation, the cell becomes circumferentially constricted, the intra-cell compartments, while being inflated, substantially simultaneously expanding in a direction substantially normal to
  • Figure 1 is an illustration showing a massage sleeve according to the concepts of the present invention in use on the leg of a patient;
  • Figure 2 is an illustration of a massage sleeve according to the concepts of the present invention mounted on the leg of a patient drawn to a larger scale;
  • FIG. 3 is a partial perspective view of a massage sleeve according to the concepts of the present invention fitted with a control unit;
  • Figure 6 is a schematic block diagram of a pump unit that corresponds to further details of the pump unit of Figure 5, according to the concepts of the present invention
  • Figure 7 is a table of programmed control parameters for a control unit in the case of two three-chambered sleeves according to the concepts of the present invention
  • FIGS. 8A-8E illustrate flowcharts of an exemplary operation of the system according to the concepts of the present invention
  • Figure 9 is a block diagram of an alternative embodiment of a pneumatic pressure system according to the concepts of the present invention.
  • Figure 10 is a schematic block diagram of a pump unit that corresponds to further details of the pump unit of Figure 9;
  • Figure 12 is one embodiment of a pressure sleeve-pressure accumulator combination according to the concepts of the present invention
  • Figure 13 shows another embodiment of pressure sleeve-pressure accumulator combination in which the accumulator is integral with the sleeve according to the concepts of the present invention
  • Figure 14 shows a third embodiment of a pressure sleeve-pressure accumulator combination in the form of a slipper according to the concepts of the present invention
  • Figure 15 shows a system for applying pressure to a body limb according to the concepts of the present invention
  • Figure 16 shows a prior art system not having a pressure accumulator for applying pressure to a body limb
  • Figure 17 shows a prior art system having a pressure accumulator located inside the housing of a console for applying pressure to a body limb
  • Figure 18 is an illustration of another massage sleeve according to the concepts of the present invention mounted on the leg of a patient drawn to a larger scale;
  • Figure 19 is a partial perspective view of another massage sleeve according to the concepts of the present invention fitted with a control unit;
  • Figure 21 shows another embodiment of a foot pressure sleeve according to the concepts of the present invention
  • Figure 22 is another embodiment of a pressure sleeve-pressure accumulator combination according to the concepts of the present invention
  • Figure 23 illustrates possible states for an air channel or conduit connected to a pump device during an identification mode according to the concepts of the present invention
  • Figures 24-28 illustrate some of the possible combinations of pressure sleeve or pressure accumulator device connections to a pump device according to the concepts of the present invention
  • Figure 29 shows an embodiment of a foot pressure sleeve-pressure accumulator according to the concepts of the present invention
  • Figure 30 shows another embodiment of a foot pressure sleeve-pressure accumulator according to the concepts of the present invention
  • Figures 31 and 32 show further embodiments of a foot pressure sleeve according to the concepts of the present invention
  • Figure 33 illustrates the concept of circumferential constriction as employed by the present invention
  • Figure 34 graphically illustrates a relationship between pressure in an inflated pressure sleeve of the present invention and a constriction factor according to the concepts of the present invention
  • a patient is depicted wearing a massaging sleeve 1 of the present invention on her leg while carrying out her routine duties.
  • the trouser leg of the patient is cut away to reveal the sleeve.
  • the sleeve remains concealed from view, and remains unnoticed even during operation when the cells are intermittently inflated.
  • the sleeve 1 has an inner and outer surface composed of a 5 durable flexible material and is divided into a plurality of cells 2 along its length and each cell is connected to the control unit 3 by a separate tube collectively labeled 4 in Figure 1. Sections of the sleeve may be of non-inflatable elastic material 5, for example around the knee and ankle.
  • each cell has a fluid inlet opening 6 to which a
  • the control unit 3 contains a compressor capable of compressing and pumping ambient air into one or more selected cells in the sleeve via the hoses 4.
  • the control unit 3 allows a temporo-spatial regime of inflation and deflation of the cells to be selected, e.g. a regime which generates peristaltic contractions of the sleeve so as to force fluids inside the limb towards the proximal end of
  • the limb or a regime which enhances the flow of the venous blood in the limb.
  • the continuity of the peristaltic wave is enhanced by interdigitating the compartments of adjacent cells in the massaging sleeve as shown in Figures 2 and 3.
  • the cells are subdivided into a plurality of longitudinally extending intra-cell compartments 7.
  • the intra-cell compartments 7 are
  • intra-cell compartments 7 in a given cell are confluent due to perforations 8 in the seams between adjacent intra-cell compartments 7 so that all the intra-cell compartments 7 in the cell are inflated or deflated essentially simultaneously.
  • each cell has a fluid inlet opening 6 to which a hose 4 from the control unit 3 is attached.
  • the control unit 3 contains a compressor capable of compressing and pumping ambient air into one or more selected cells in the sleeve via the hoses 4.
  • the control unit 3 allows a temporo-spatial regime of inflation
  • the cells of Figures 18 and 19 are subdivided into a plurality of longitudinally extending intra-cell compartments 7.
  • the intra-cell compartments 7 are formed, for example, by welding the inner and outer shells of the massaging sleeve along the boundaries of the intra-cell compartments.
  • the intra- cell compartments 7 in a given cell are confluent due to perforations 8 in the seams between adjacent intra-cell compartments 7 so that all the intra-cell compartments 7 in the cell are inflated or deflated essentially simultaneously.
  • each intra-cell compartment 7, when inflated, assumes essentially the shape of a cylinder having its axis parallel to that of the limb.
  • FIG. 4A A theoretical cross-section of a deflated cell is shown in Figure 4A, and Figure 4B shows the same cross-section after inflation.
  • the cell has been divided, by way of example, into ten intra-cell compartments 7, it being self-evident that any other number of intra-cell compartments may be used. If N is the number of intra-cell compartments in a given cell, and r is the radius of an inflated intra-cell compartment, then as can be seen in Figure 4B the length of the circumference 10 that passes through the centers of the inflated intra-cell compartments 7 will be, theoretically, about 2Nr, whereas the circumference 9" of the deflated cell is, theoretically, about N ⁇ r.
  • the theoretical fractional decrease in the circumference upon inflation is thus ((N ⁇ r - 2Nr)/( ⁇ Nr)) ⁇ (1-
  • the length of the inner circumference 9" of the inflated cell in actuality, will be something less than 2Nr so that the fractional decrease in the inner circumference upon inflation is thus is less than or about 0.36.
  • N and r are chosen so that ⁇ Nr (the circumference of the deflated cell) corresponds to the original circumference of the limb segment contained within the lumen of the cell.
  • the fractional decrease in the circumference of the cell upon inflation causes a contraction of the cell whereby pressure is applied to the limb that, as follows from the equation above, is independent of N and r.
  • Inflating the cell thus leads to a decrease in the volume of the limb contained within the cell of less than or about equal to 60%.
  • the volume to which the cell must be inflated is less than that of conventional compression devices.
  • choosing N to be sufficiently large can obtain a decrease of 59% in the volume of the limb by inflating the cell to an arbitrarily small total volume.
  • N 30
  • the total volume of the inflated cell is theoretically less than one-tenth of the volume of the inflated cell of the conventional compression devices. This allows a much smaller compressor to be used than is possible with conventional sleeves, thus permitting the patient to be ambulatory while being treated by the present invention.
  • a deflated pressure sleeve 3000 includes a coupling device 3010, such as a hook and latch system, and three intra-cell compartments 3020, 3030, and 3040. It is noted that the coupling device 3010 couples or attaches to the intra-cell compartment 3040, in this example, to shape or form the pressure sleeve 3000 for therapeutic purposes.
  • a coupling device 3010 such as a hook and latch system
  • intra-cell compartments 3020, 3030, and 3040 couples or attaches to the intra-cell compartment 3040, in this example, to shape or form the pressure sleeve 3000 for therapeutic purposes.
  • the three intra-cell compartments 3020, 3030, and 3040 are formed from perimetric welds or bonds (not shown) and compartmental welds or bonds 3025 and 3035. Between adjacent intra-cell compartments 3020 and 3030 is compartmental weld
  • compartmental weld 3035 is compartmental weld 3035.
  • the pressure sleeve When the pressure sleeve is deflated, as shown by pressure sleeve 3000, and is decoupled, the pressure sleeve realizes a first circumference value Cj as measured between points X and Y.
  • the pressure sleeve when the pressure sleeve is inflated, as shown by pressure sleeve 3100, and is decoupled, the pressure sleeve realizes a second circumference value C 2 as measured between points X and Z.
  • the difference between the first circumference value Ci and the second circumference value C 2 is a shortening value S. As noted above the greater the value S, the greater the volume decrease of the limb caused by the inflated pressure sleeve.
  • the shortening value S is affected by many parameters of the sleeve, such as: (1) the chemical and physical properties of the material used in constructing the sleeve (elasticity, flexibility, etc.; (2) the thickness of the material layer; (3) as noted above, the width of the welding lines or compartmental bonds; (4) the number of layers that are welded together; (5) the specific parameters of the welding procedure that is used and how it affects the chemical and physical characteristics of the material; and (6) the inflation pressure.
  • an empirical factor / is utilized to define the shortening value S, or in other words, the amount of circumferential constriction realized by the pressure sleeve for a given pressure.
  • S is defined as (( ⁇ -2)/ ⁇ )(C ⁇ -((N-l)B)) wherein is the actual length of the cell, as illustrated in Figure 33, and B is the width of a single weld between two adjacent compartments ; e.g., welds 3025 or 3035 as illustrated in Figure 33.
  • the empirical factor/ can be calculated for a pressure sleeve when it is inflated to a specific pressure.
  • Figure 34 illustrates a curve that defines the relationship between the various possible pressures within a pressure sleeve according to the concepts of the present invention and the empirical factor/.
  • the empirical factor/of the specific pressure sleeve can be determined.
  • a pressure sleeve according to the concepts of the present invention which has an actual length (Ci) of 385 mm, a single weld width (B) of 1.7 mm, an empirical factor f of 0.53 at 85 mmHg, and contains 15 adjacent intra-cell compartments (N), would have a shortening value of about 68 mm.
  • the present invention provides a pressure sleeve that is capable of realizing a volume reduction of up to 60% depending upon the pressure in the sleeve, the width of the welds, the material of the inner and outer shells, etc.
  • the intra-cell compartments through the compartment bonds or welds (3025 and 3035), enables the present invention to realize a greater volume reduction with respect to the limb with less air than the conventional devices.
  • the intra-cell compartments expand dimensionally in a direction substantially normal to the surface of the limb, as illustrated by the double-ended arrow E.
  • the intra-cell compartments contract dimensionally in a direction substantially coaxially to the surface of the limb, as illustrated by the opposing arrows D.
  • the simultaneous expansion in one dimension and contraction in a substantial normal direction of the intra-cell compartments provides a circumferential constriction of the pressure sleeve and thus reducing the volume of the underlying limb and causing blood to flow from the area.
  • the present invention can also utilize less area and realize the same volume reduction, thus increasing the life of the air compressor and reducing the energy consumption of the device.
  • a sleeve according to the present invention e.g. such as sleeve 1 in Figures 1 and 2 or a smaller sleeve covering only a portion of a limb, may be used for immobilization of a fractured bone in a limb.
  • FIG. 5 is a block diagram of a pressure system 50 includes a pump unit 51, which utilizes an electrical power supply/charger unit 55, such as a conventional electrical wall outlet, and an inflatable sleeve 52.
  • the sleeve has a plurality of cells 53 arranged longitudinally along the sleeve.
  • Conduits 54 connect the pump unit and the sleeve.
  • the sleeve is placed over a limb and inflated, in some desirable cyclic manner by the pump unit, thus creating the desirable pressure cycle on the limb.
  • the system can include at least one or more flexible sleeves 52 with single or multiple inflatable cells 53 adapted to be- in contact with the body part to be treated. The best selection of a sleeve is one that requires small volume change to exert the needed pressure.
  • FIG. 6 is a schematic block diagram of a pump unit 60 that corresponds to further details of the pump unit 51 of Figure 5.
  • the pump unit 60 includes an independent source of energy, such as a rechargeable battery pack 67, which enable the pneumatic device operation without a fixed connection to a main power outlet.
  • the batteries can be bypassed and the device is able to operate for longer times, and the batteries can be recharged at the same time, while it is connected to the main power supply with the aid of the charger 55.
  • a source of compressed air, such as a compressor 64 is powered by the batteries or the main electrical outlet, and connected to the sleeve or sleeves 52 by pneumatic conduits 54.
  • a control unit 68 is adapted to receive inputs from the operator and from pressure sensors 62 and 63.
  • the control unit serves to read and control the operation of the compressor 64 and to control the cyclic inflating and deflating of the sleeve 53 (in Fig 5).
  • the control unit also controls the operation of solenoid valves 66, which receive and distribute the flow to the different cells 53 (in Fig 5) with the aid of a manifold 65, to enable the sequential inflating and deflating of the multi-segmented sleeve's cells 53.
  • the compressor 64 may be housed with the control unit or may be housed separately.
  • both hardware and software of the current invention enables the operation of the device from an external pressurized air and power sources.
  • the source of pressurized air can be the central source of pressure-regulated supply that has wall outlets adjacent to the power outlets or that both the external power and pump sources could be an integral part of the patient's bed.
  • miniaturized components like the compressor 64 and solenoid valves
  • Pneumatic devices apply cyclic sequential pressure on a body's legs or arms.
  • the cyclic sequential pressure is applied on the treated parts of the body by inflating and deflating each cell 53 of the sleeve 52 at a predefined timing. While being inflated, the multi- chambered segmented sleeve 52 should be encircling the part of leg to be treated. While the sleeve is inflated, a local pressure is applied at the contact area between the sleeve and the body.
  • the control unit 68 which can be software based, controls the operation of the compressor 64 and solenoid valves 66.
  • the control unit can be programmed to achieve any desired inflating and deflating sequence and timing including delay intervals, in accordance with clinical application.
  • the controller can be programmed to operate in accordance with the table of parameters for the control unit shown in Figure 7.
  • Each time interval from the table (TI, T2...T7), as illustrated in Figure 7, can be changed independently.
  • the patient or the therapist can control the pressure level of the treatment.
  • An example of an exemplary operation of the system in accordance with the present invention is illustrated in the flowchart of Figures 8A-8E, describing self-checks and error detection processes, attached pressure device identification process for identifying pressure devices such as pressure sleeve/sleeves, pressure accumulators, or combinations thereof, as well as normal operation of the system.
  • the operation begins with on power reset (cold or hot) (801).
  • the system initializes a built in test (BIT) procedure which checks the display, the buzzer and the pressure sensors (802, 803, 804).
  • BIT built in test
  • the system holds (through termination procedure ((806) and 837-840)). If the BIT ends correctly, the system resets the watchdog timer (WDT), which prevents locking of the system and turns on the ON Flag (on the display) (805), and enters the WAIT mode, where it waits for a program (treatment) selection.
  • WDT watchdog timer
  • a WAIT procedure starts at step (805A) where keys are checked. If keys are not pressed, the system blinks the program flags at the display (807). If more than 1 minute has passed without any key pressed (808), the system enters error mode 1 ((809) and (841-845)). Restarting the system is the only way to go back from this mode of operation.
  • This data can be loaded from two different sources, one a preloaded sequence that is part of the content of the system controlling processor.
  • the second source is the sleeve itself, equipped with a special connector and internal memory, which enables special treatments to be supported (plug and play procedure) (Detailed data of this procedure provided in (864-868)).
  • the WDT resets again, and data is entered to the cycle counter (which holds the sequence data, as previously supplied) (818).
  • the sequence starts by moving data to the pump and the valves and continues with a short period delay before checking the pressure sensors (820). Until this delay is finished, the system waits (820 -821). After that, the system checks the sensors (823). If the sensors do not react correctly until the max available time (823, 824, 822), a sequence step error is stored (825). Later on, those errors will be analyzed (830-836). If the sensors reacted correctly at the time window, a non-error flag is stored (826). The system branches to the error analyzing procedure (827 and 830). If the system returns (not enough errors to hold), the cycle step counter advances (828, 829) and the next step starts (819).
  • the termination procedure is as follows.
  • the termination procedure starts at step (837) by operating the buzzer (838), and waits 10 seconds (839, 840) before re-operating the buzzer.
  • an error 1 procedure is described.
  • the error 1 mode starts at step
  • the WDT procedure starts at step (846), by resetting and re-programming the WDT counter to a 1 second interval. If, within this time interval (847) no WDT initialization pulse arrives (848), the WDT will reset the whole system (850).
  • Battery check procedure (855-859) uses hardware mechanisms that operate independently, without the software.
  • External supply check procedure (860 to 863) uses hardware mechanisms that operate independently, without the software.
  • FIG. 8E an internal/external sequence loading procedure is shown.
  • This unique function of the system enables use of both pre-loaded treatment sequences in the pump unit processor (internal) and to receive new treatments parameters from an electronic unit placed within the sleeve's connector (external).
  • the sleeve connector to the system includes, together with the air tubes, an electronic memory and/or processing device, the presence of which is detected by the system. Detecting such a device causes the system to load the sequence data from the sleeve memory, and not from the pre-loaded memory, which is part of the processor. This is referred to conventionally as a "plug and play" mechanism.
  • step (864) the system checks the presence of an intelligent sleeve (865). If one exists, the sequence is loaded from the intelligent sleeve (867). If no intelligent sleeve is detected, then the pre-loaded sequence is loaded (866).
  • Finishing loading the system causes the program to return to the next step (817).
  • FIG. 9 Another embodiment of a portable pneumatic pressure system 90 of the present invention is illustrated in Figure 9.
  • the system includes a pump unit 91, at least one inflatable sleeve 92 with a single or multiple inflatable cells 93 adapted to be in contact with the body part to be treated.
  • An independent source of energy for example rechargeable batteries, is provided which enables the pneumatic operation without a fixed connection to a main electrical power outlet,
  • the batteries can be bypassed and thus system can operate for longer time periods while it is connected to the main power, and the batteries can be recharged at the same time.
  • FIG 10 is a schematic block diagram of a pump unit 100 that corresponds to further details of the pump unit 91 of Figure 9. It will be appreciated that the thick interconnecting lines represent pneumatic connections, while the thin interconnecting lines represent electrical connections.
  • the pump unit 100 includes an independent source of energy, such as a rechargeable battery pack 107, which enable the pneumatic device operation without a fixed connection to a main power outlet.
  • the batteries can be bypassed and the system is able to operate for longer times, and the batteries can be recharged at the same time.
  • the control unit 108 is adapted to receive the operator's commands and control the operation of the compressor to control the cyclic inflating and deflating of the sleeve.
  • Solenoid valves are replaced, in this embodiment, by self-operated relief valves 95, one with each chamber.
  • the compressor is directly connected to the first cell.
  • Each cell is connected to the next, one through a relief valve to-regulate the pressure and maintain a pressure gradient.
  • Each relief valve (except the last one) is bypassed with a conduit section including a check valve 96 to allow deflating of the cell.
  • the last relief valve is open to the atmosphere, thus limiting the maximal pressure in the cells.
  • the control unit 108 controls the operation of the compressor 104 to inflate the first cell 93.
  • the pressure in the first cell is built-up, and when it gets higher than the first relief valve 95 opening pressure, the second cell starts to be inflated.
  • the third cell is inflated while the pressure in the second cell reaches the burst pressure of the second relief valve.
  • the inflating process will continue in the same manner until the last cell is inflated.
  • the controller de- energizes the compressor and enables all of the cells to be deflated simultaneously.
  • the automatic portable ambulant pneumatic pressure system of the present invention is capable of treating more than one part of the body by connecting more than one sleeve to the pump unit.
  • the treatment is not symmetric on the body, i.e., treatment applied on the left calf and the right foot, and a different treatment is required in each sleeve.
  • the sleeves used for the different treatments differ from each other by appearance because they are designed to operate on a different part of the body. They can also differ with the number of chambers and the connected conduits.
  • the pump unit has the capability to operate each one of the sleeves with the appropriate medical treatment cycle.
  • the present invention includes an identification system or process within the processor, which enables the present invention to correctly identify the combination of sleeves attached to it and automatically activates the appropriate operation algorithm.
  • This capability is crucial if the device has to be kept as a user friendly "On/Off device, in spite of its outstandingly high versatility depicted in its ability to operate foot/foot and calf/foot and thigh/calf/thigh sleeves and used on one or two legs with/with out pressure accumulator(s), and/or any proper combination thereof.
  • the present invention contains X solenoid operated valves, and each one of them is capable of connecting a pressure device, such as an air cell in a pressure sleeve or pressure accumulator, to a pressurized air source.
  • the pressurized air source can be a centra] reservoir of pressurized air, internal or external air accumulator, or (usually) the air pump of the device itself.
  • Tmax and Tmin two inflation time constants were determined: Tmax and Tmin.
  • a proper inflation time (Tn) of a pressure device has to be between Tmin and Tmax (Tmin ⁇ Tn ⁇ Tmax).
  • Tn > Tmax in a normally functioning device it means that either no pressure device was connected to the specific solenoid, that the pressure device that was connected is leaking, or the connected pressure device is not an authorized pressure device.
  • Tn ⁇ Tmin in a normally functioning device it means that the outflow tract of the specific solenoid is partially or completely blocked.
  • the inflation time Tn can be or Normal ("A") or > Tmax ("B") or ⁇ Tmin ("C"), as illustrated in Figure 23. More specifically, as shown in Figure 23, an air conduit connector 1121 with air conduits or flow tracts 1112, each associated with one of X solenoids 5000, shows the three possible operational states of an air conduit or flow tract 1112 attached to a solenoid 5000.
  • the sequence of the results in all X solenoids creates a specific code that is representative of the state of the pressure device and/or the type of the pressure device connected to each solenoid. If this code is recognized by the microprocessor as a valid one (one that appears in its lookup table), the microprocessor will switch the device from the "checking program" into the specific operation process or algorithm. If the created code does not appear in the lookup table, the created code will be identified as invalid, and the microprocessor will deactivate the device. In a preferred embodiment, an audiovisual alarm will be activated. Examples, of the possible code generation are illustrated in Figures 24 through 28.
  • an air conduit connector 1151 that has three air conduits or flow tracts 1112 connected to three solenoids 5000 will cause the microprocessor to create a code "AAB".
  • the code "AAB” in this example, is associated with air conduit connector 1151 being connected to a pressure device comprising a pressure accumulator 6000, an air cell 6500 of a foot pressure sleeve, and no air cell 1201.
  • an air conduit connector 1161 that has three air conduits or flow tracts 1112 connected to three solenoids 5000 will cause the microprocessor to create a code "AAC”.
  • the code "AAC” in this example, is associated with air conduit connector 1161 being connected to a pressure device having air cells 7000 of a double cell calf or thigh sleeve and blocked passage 1202.
  • an air conduit connector 1185 that has three air conduits or flow tracts 1112 connected to three solenoids 5000 will cause the microprocessor to create a code "AAA”.
  • the code "AAA”, in this example is associated with air conduit connector 1185 being connected to a pressure device having air cells 8020 of a triple cell calf or thigh sleeve.
  • an air conduit connector 1183 that has three air conduits or flow tracts 1112 connected to three solenoids 5000 will cause the microprocessor to create a code "AAA”.
  • the code "AAA”, in this example is associated with air conduit connector 1183 being connected to a pressure device having air cells 8010 of a triple cell calf or thigh sleeve.
  • an air conduit connector 1191 that has three air conduits or flow tracts 1112 connected to three solenoids 5000 will cause the microprocessor to create a code "BAB".
  • the code "BAB” in this example, is associated with air conduit connector 1191 being connected to a pressure device having an air cell 6550 of a foot pressure sleeve and no air cells 1201.
  • an air conduit connector 1153 that has three air conduits or flow tracts 1112 connected to three solenoids 5000 will cause the microprocessor to create a code "AAB”.
  • the code "AAB” is associated with air conduit connector 1153 being connected to a pressure device having a pressure accumulator 6000, an air cell 6500 of a foot pressure sleeve, and no air cell 1201.
  • code “A” can be further modified to be “A”, “Ai”, “A 2 "."A n ", to provide a more specific identification of the sleeve of combination of sleeves attached to the pump device of the present invention.
  • code “A” could be associated with a foot sleeve wherein Tj>Tn>Tmin.
  • code “A]” could be associated with a one cell of a calf sleeve wherein T 2 >Tn>T ⁇ .
  • code “A n " could be associated with a pressure accumulator wherein Tmax>Tn>T n - ⁇ .
  • Figures 23-28 demonstrate the potential of this "identification system" to differentiate between different pressure devices or different sleeves combinations, in a device that contains six solenoids and pressure devices or sleeves that are connected to the device with an air conduit connector that has three air conduits or flow tracts.
  • the control unit within the pump unit, can read the input information about the required treatment by reading the coding of the sleeves connectors. While starting any new treatment cycle, the control unit will start the treatment by a quick identification of the type of sleeves connected and will apply the appropriate operating cycle.
  • the coding of the sleeve connectors can be made by state of the art mechanical or electro-mechanical components wherein each air conduit connector has a mechanical tag, an electronic tag, an optical tag, or an electromechanical tag, all which could be read by the pump unit.
  • the required treatment parameters on the sleeve's connector as part of the mechanical tag, an electronic tag, an optical tag, or an electromechanical tag according to the sleeve's projected treatment.
  • the data will be transferred to the pump unit through either mechanical, electrical, optical means, or a combination thereof, and the treatment cycle will be compatible to the selected sleeve.
  • the therapist will be able to program the sleeve's parameters through manipulation of the mechanical tag, the electronic tag, the optical tag, the electromechanical tag, or combination thereof to fit the treatment to the specific patient.
  • FIG. 1 1 is a simplified functional block diagram of an exemplary embodiment of a connector assembly 1100 for an associated sleeve 1105 in accordance with the present invention.
  • the assembly 1100 includes an electronic memory and/or control processor unit 1102 that is capable of detecting and transmitting electronic signals.
  • the processor unit When connected to a pump unit and on power reset of the pump unit, the processor unit, which can be part of the conduits of the sleeve, receives DC power and sends back an identification signal which initiates the communication procedures.
  • the treatment data will be loaded to the pump unit.
  • the second phase of this operation is to lock the cuff of the sleeve, with an electromechanical safety locking mechanism 1103. This operation is done for safety reasons, to prevent undesired release of the cuff, during normal operation.
  • a pressure sensors array 1104 measures the pressure at the end of each pressure line 1106.
  • the data collected at this stage is transmitted, via the processor unit 1102, to the processor in the pump unit, in order to evaluate the status of the system.
  • the sleeve 1105 has several cells that -can be independently inflated by the pump unit. The number of cells in the sleeve can vary, according to desired treatments.
  • Figure 12 shows a pressure device having a pressure sleeve-pressure accumulator combination generally indicated by 112 in accordance with another embodiment of the present invention.
  • the combination 112 comprises a pressure sleeve 105 and a pressure accumulator 110.
  • the pressure sleeve 105 may be any known pressure sleeve, but preferably the pressure sleeve is a pressure sleeve with the multiple intra-cell compartments as described above so that a small volume of air or fluid provides for beneficial circumferential constriction of the pressure sleeve upon the limb.
  • the pressure sleeve 105 includes one or more individually inflatable toroidal cells 115.
  • FIG. 12 three cells 115a, 115b, and 115c are shown. This is by way of example only, and the pressure sleeve 105 may comprise any number of cells 115. Each cell 115 has an associated tubular conduit 120a, 120b, and 120c. The conduits 120a,
  • 120b, and 120c serve as both an inlet for fluid into the associated cells 115a, 115b, and 115c, respectively, as well as an outlet for fluid out of the associated cell 115a, 115b, and 115c, respectively.
  • the cells 115a, 115b, and 115c are formed from a flexible, fluid imperious material such as cloth-lined rubber or canvas.
  • the pressure sleeve 105 may be formed for example from an inner cylindrical shell 150 and an outer cylindrical shell 155 formed from a flexible fluid impervious material. Seams 160 at the boundaries of cells 115a, 115b, and 115c are formed by welding the inner cylindrical shell 150 and outer cylindrical shell 155 together at the seams.
  • One or more of the cells 115a, 115b, and 115c may optionally be divided into two or more intra-cell compartments 130, as shown, for example, for the cell 115c.
  • the intra-cell compartments 130 are formed by seams 135 extending in a longitudinal direction of the pressure sleeve 105.
  • the seams 135 are incomplete at perforations 136 so that the intra-cell compartments 130 are inflated essentially simultaneously when pressurized fluid enters the cell 115c. As explained above, this decreases the volume of the cell 115c so that a predetermined pressure on a-limb positioned in the lumen 125 of the pressure sleeve 105 is realized.
  • the pressure accumulator 110 comprises a container 140 formed from a fluid impervious material.
  • the container 140 may be made from a flexible material such as cloth-lined rubber or canvas. Alternatively, the container 140 may be made from a rigid material such as plastic or metal.
  • the accumulator 110 further comprises a tubular conduit 145 that serves both as an inlet for pressurized fluid into the container 140 as well as an outlet for fluid out of the container 140.
  • the pressure accumulator 110 enables the compression system to provide intermittent pneumatic compression, fast intermittent pneumatic compression, fast inflation, less complexity, lower costs, and greater patient comfort. Moreover, the pressure accumulator 110 enables the compression system to provide effective therapeutic venous flow acceleration.
  • the pressure accumulator 110 is not part of a console.
  • the pressure accumulator 110 is a device that is separate, e.g., non-integral, from the other components of the compression system.
  • the pressure accumulator 110 can then be located at any convenient location that the user desires.
  • the pressure accumulator 110 includes a clip or fastening device 142 that enables the pressure accumulator 110 to be located on the belt of the user or hook onto another proximately located object.
  • This fastening device 142 may also include a strap to fasten around the waist or limb of the user.
  • the pressure accumulator 110 is flexibly tethered to the compression system of the present invention to provide mobility and flexibility.
  • FIG. 13 shows a pressure device having a pressure sleeve-pressure accumulator combination generally indicated by 200 in accordance with a further embodiment of the present invention.
  • a pressure accumulator 210 is integrated into a pressure sleeve 205, thereby making the pressure accumulator 210 integral with the pressure sleeve 205.
  • the pressure sleeve 205 is divided into the pressure accumulator 210 and a pressure application section 216 made up of cells 215a and 215b.
  • the pressure sleeve 205 may comprise any number of cells.
  • each cell has an associated tubular conduit (220a and 220b) that serves as both a fluid inlet and outlet for the cell.
  • the cells are formed from a flexible, fluid impervious material such as cloth-lined rubber or canvas.
  • One or more of the cells may be divided into intra-cell compartments 230, as explained above with reference to Figure 12, having seams 235 and perforations 236 so that the intra-cell compartments are inflated essentially simultaneously when pressurized fluid enters the cell.
  • the container 240 may partially surround the lumen 225 of the pressure sleeve 205 as shown in Figure 13. Alternatively, the container 240 may completely surround the lumen 225 of the pressure sleeve 205 (not shown).
  • the pressure sleeve 205 is formed from an inner cylindrical shell 250 and an outer cylindrical shell 255 formed from a flexible fluid impervious material. Seams (260a, 260b, 260c, 260d, and 260e) at the boundaries of the cells, at the boundaries of the container 240 or at the boundary between the container 240 and the cell 215a are formed by welding the inner and outer sleeves together at the seams.
  • FIG 22 shows a pressure device having a pressure sleeve-pressure accumulator combination generally indicated by 1120 in accordance with a further embodiment of the present invention.
  • a pressure accumulator 1110 is separate from a pressure sleeve 1150.
  • the pressure sleeve 1150 is divided into pressure application cells 215a and 215b. This is by way of example only, and the pressure sleeve 1150 may comprise any number of cells.
  • each cell has an associated tubular conduit (220a and 220b) that serves as both a fluid inlet and outlet for the cell.
  • the cells (215a and 215b) are formed from a flexible, fluid impervious material such as cloth-lined rubber or canvas.
  • One or more of the cells may be divided into intra-cell compartments 230, as explained above with reference to Figure 13, having seams 235 and perforations 236 so that the intra-cell compartments are inflated essentially simultaneously when pressurized fluid enters the cell.
  • the pressure accumulator 1110 comprises a container 240 formed from a fluid impervious material.
  • the accumulator 210 further comprises a tubular conduit 245 that serves both as an inlet for pressurized fluid into the container 240 as well as an outlet for fluid out of the container 240.
  • the container 240 may be made from a flexible material such as cloth-lined rubber or canvas. Alternatively, the container 240 may be made from a rigid material such as plastic or metal.
  • the pressure sleeve 1150 is formed from an inner cylindrical shell 250 and an outer cylindrical shell 255 formed from a flexible fluid impervious material. Seams (260a, 260b, 260c, and 260d) at the boundaries of the cells are formed by welding the inner and outer sleeves together at the seams.
  • the pressure sleeve-pressure accumulator combination 1120 is connected via tubular conduit (220a, 220b, and 245) to air conduit connector 1111 that has three air conduits or flow tracts 1112.
  • Figure 14 shows a pressure device having a pressure sleeve-pressure accumulator combination generally indicated by 300 in accordance with another embodiment of the present invention.
  • the combination 300 is formed into a slipper 307 to be worn on a foot 301.
  • the combination 300 comprises a pressure sleeve 305 that comprises one cell 315.
  • the pressure sleeve 305 may comprise any number of cells.
  • the cell or cells 315 may be divided into intra-cell compartments 330, as discussed above in reference to Figure 12, having seams 335 and perforations 336 so that the intra-cell compartments are inflated essentially simultaneously when pressurized fluid enters the cell.
  • the cell 315 has an associated tubular conduit 320.
  • the combination 300 further comprises a pressure accumulator 310.
  • the pressure accumulator 310 has been incorporated into the sole of the slipper 307.
  • the pressure accumulator 310 comprises a container 340 formed from a fluid impervious material that is sufficiently flexible so as to allow it to bend for comfortable walking while being sufficiently rigid so that it does not collapse under the weight of the user.
  • the container formed from a fluid impervious material that is sufficiently flexible so as to allow it to bend for comfortable walking while being sufficiently rigid so that it does not collapse under the weight of the user.
  • the pressure accumulator 310 further comprises a tubular conduit 345 that serves both as an inlet for pressurized fluid into the container 340 as well as an outlet for fluid out of the container 340.
  • the combination 300 lastly comprises a foot fastener 303 that causes the pressure sleeve 305 to be snug around the foot 301.
  • This foot fastener 303 may be a Velcro TM strap or other device that enables the pressure sleeve 305 to be formed around the foot 301.
  • An ankle strap 304 is provided to prevent the pressure sleeve 305 and slipper 307 from shifting or coming disengaged from the foot 301.
  • the ankle strap 306 may be a Velcro tM strap or other device that prevents the pressure sleeve 305 and slipper 307 from shifting or coming disengaged from the foot 301.
  • the ankle strap 304 is provided with a heel support 306 that prevents the foot from sliding out of the back of the slipper 304.
  • the heel support 306 may be of a rigid material, such as a plastic, or a flexible material, such as cloth.
  • Figure 29 shows another pressure device having a pressure sleeve-pressure accumulator combination in accordance with another embodiment of the present invention.
  • the combination comprises a pressure sleeve 2000 that comprises one cell 2315.
  • the pressure sleeve 2000 may comprise any number of cells.
  • the cell or cells 2315 may be divided into intra-cell compartments 2006, as discussed above in reference-to Figure 12, having seams 2004 and perforations so that the intra-cell compartments are inflated essentially simultaneously when pressurized fluid enters the cell.
  • the cell 2315 has an associated tubular conduit 2014.
  • the pressure sleeve-pressure accumulator combination further comprises a pressure accumulator 410.
  • the pressure accumulator 410 is separate from the pressure sleeve 2000.
  • the pressure accumulator 410 comprises a container formed from a fluid impervious material.
  • the container may be formed, for example, from a flexible material such as cloth-lined rubber or canvas or from a rigid material such as plastic or metal.
  • the pressure accumulator 410 further comprises a tubular conduit 2015 that serves both as an inlet for pressurized fluid into the container as well as an outlet for fluid out of the container.
  • the combination lastly comprises foot fasteners 2009 that cause the pressure sleeve 2000 to be snug around the foot 301.
  • the foot pressure sleeve 2000 has a forward section 2012 that can extend from an arch portion of a patient's foot to under either the ball of a patient's foot or the toes of a patient's foot.
  • the foot pressure sleeve 2000 also has a rearward section 2011 that substantially extends under the heel of a patient's foot.
  • the cell has an associated tubular conduit 2014.
  • the foot pressure sleeve 2000 comprises foot fasteners 2009 and 2010 that causes the pressure sleeve 2000 to be snug around the foot.
  • the foot fasteners 2009 and 2010 may be Velcro ⁇ M straps or other devices that enable the pressure sleeve 2000 to be formed around the foot.
  • An ankle strap 2007 is provided to prevent the pressure sleeve 2000 from shifting or coming disengaged from the foot.
  • the ankle strap 2007 may be a Velcrox M strap or other device that prevents the pressure sleeve 2000 from shifting or coming disengaged from the foot.
  • Figure 39 shows another pressure device having a pressure sleeve-pressure accumulator combination (pressure device) in accordance with another embodiment of the present invention.
  • the pressure device comprises a foot pressure sleeve 4300.
  • the foot pressure sleeve 4300 comprises a single cell; however the foot pressure sleeve 4300 may comprise any number of cells.
  • the foot pressure sleeve 4300 has an associated tubular conduit 4010, 4030, 4040, and 4050 connected to the connector 4000.
  • the connector 4000 includes coupler 4005 to connect to valves 5050 that are connected to conduit 5070, as illustrated in Figure 40.
  • the pressure device further comprises a pressure accumulator 4200 that is located in a pressure accumulator flexible housing 4100.
  • the pressure accumulator 4200 is separate from the foot pressure sleeve 4300.
  • the pressure accumulator 4200 comprises a container formed from a fluid impervious material.
  • the container may be formed, for example, from a flexible material such as cloth-lined rubber or canvas or from a rigid material such as plastic or metal.
  • the pressure accumulator 4200 further comprises a tubular conduit 4020 that serves both as an inlet for pressurized fluid into the container as well as an outlet for fluid out of the container.
  • the conduits 4010 and 4030 may be housed in or pass through the pressure accumulator flexible housing 4100.
  • the conduits 4010 and 4030 may be connected together by a y-joint 4040 within the pressure accumulator flexible housing 4100, with the y-joint 4040 being connected to conduit 4050 leading to the foot pressure sleeve 4300.
  • Figure 30 shows another pressure device having a pressure sleeve-pressure accumulator combination in accordance with another embodiment of the present invention.
  • the combination comprises a pressure sleeve 2000 that comprises one cell 2315.
  • the cell or cells 2315 may be divided into intra-cell compartments 2006, as discussed above in reference to Figure 12, having seams 2004 and perforations so that the intra-cell compartments are inflated essentially simultaneously when pressurized fluid enters the cell.
  • the cell has an associated tubular conduit 2014 connected through port 2013.
  • the pressure sleeve-pressure accumulator combination further comprises a pressure accumulator 410.
  • the pressure accumulator 410 is separate from the pressure sleeve 2000.
  • the combination lastly comprises a foot fastener 2009. that causes the pressure sleeve 2000 to be snug around the foot 301.
  • the foot fastener 2009 may be a Velcro ⁇ M strap or another device that enables the pressure sleeve 2000 to be formed around the foot 301.
  • An ankle strap comprising an ankle portion 304 and a heel portion 306 is provided to prevent the pressure sleeve 2000 from shifting or coming disengaged from the foot 301.
  • the ankle strap comprising ankle portion 304 and heel portion 306 may include a Velcrox M strap or other device that prevents the pressure sleeve 2000 from shifting or coming disengaged from the foot 301.
  • a more detail illustration of the pressure sleeve of Figure 30 is shown in Figure
  • a foot pressure sleeve 2000 is constructed from two shells that have been welded together.
  • the shells are a fluid impervious and flexible material such as cloth-lined rubber or canvas.
  • the foot pressure sleeve 2000 contains a cell formed by weld 2002. This is by way of example only, and the pressure sleeve 2000 may comprise any number of cells.
  • the cell or cells contain multiple intra-cells 2006 formed by intra-cell linear-welds 2004 and intra-cell spot-welds 2003.
  • the foot pressure sleeve 2000 has a forward section 2012 that can extend from an arch portion of a patient's foot to the ball of a patient's foot.
  • the foot pressure sleeve 2000 also has a rearward section 2011 that substantially extends under the heel of a patient's foot.
  • the cell has an associated tubular conduit 2014 connected through port 2013.
  • the foot pressure sleeve 2000 comprises foot fasteners 2009 and 2010 that causes the pressure sleeve 2000 to be snug around the foot.
  • the foot fasteners 2009 and 2010 may be Velcro ⁇ M straps or other devices that enable the pressure sleeve 2000 to be formed around the foot.
  • An ankle strap 2008 comprising an ankle portion 304 and a heel portion 306 is provided to prevent the pressure sleeve 2000 from shifting or coming disengaged from the foot.
  • the ankle strap 2008 comprising an ankle portion 304 and a heel portion 306 may include a Velcro T M strap or other device that prevents the pressure sleeve 2000 from shifting or coming disengaged from the foot.
  • FIG 31 shows another example of a pressure device having a foot pressure sleeve according to the concepts of the present invention.
  • a foot pressure sleeve 2000 is constructed from two shells that have been welded together.
  • the shells are a fluid impervious and flexible material such as cloth-lined rubber or canvas.
  • the foot pressure sleeve 2000 contains a cell formed by weld 2002. This is by way of example only, and the pressure sleeve 2000 may comprise any number of cells.
  • the cell or cells contain multiple intra-cells 2006 formed by intra-cell linear-welds 2004 and intra-cell spot-welds 2003.
  • the foot pressure sleeve 2000 has a forward section 2012 that can extend from an arch portion of a patient's foot to under either the ball of a patient's foot or the toes of a patient's foot.
  • the forward section 2012 as illustrated in Figure 31, includes a weld 2040 that is used to form a non-inflating section 2060.
  • the non-inflating section 2060 is formed substantially from an arch portion of a patient's foot to under either the ball of a patient's foot or the toes of a patient's foot so that no significant pressure is applied to a bottom portion of the patients' foot associated with the non-inflating section 2060.
  • the foot pressure sleeve 2000 also has a rearward section 2011 that substantially extends under the heel of a patient's foot.
  • the cell has an associated tubular conduit 2014.
  • FIG 32 shows a further example of a pressure device having a foot pressure sleeve according to the concepts of the present invention.
  • a foot pressure sleeve 2000 is constructed from two shells that have been welded together.
  • the shells are a fluid impervious and flexible material such as cloth-lined rubber or canvas.
  • the foot pressure sleeve 2000 contains a cell formed by weld 2002. This is by way of example only, and the pressure sleeve 2000 may comprise any number of cells.
  • the cell or cells contain multiple intra-cells 2006 formed by intra-cell linear-welds 2004 and intra-cell spot-welds 2003.
  • the foot pressure sleeve 2000 has a forward section 2012 that can extend from an arch portion of a patient's foot to under the ball of a patient's foot.
  • the forward section 2012 as illustrated in Figure 32, includes a weld 2040 that is used to form a non-inflating section 2060.
  • the non-inflating section 2060 is formed substantially from an arch portion of a patient's foot to under the ball of a patient's foot so that no significant pressure is applied to a bottom portion of the patients' foot associated with the non- inflating section 2060.
  • the foot pressure sleeve 2000 also has a rearward section 2011 that substantially extends under the heel of a patient's foot.
  • the cell has an associated tubular conduit 2014 connected through port 2013.
  • the foot pressure sleeve 2000 comprises foot fasteners 2009 and 2010 that causes the pressure sleeve 2000 to be snug around the foot.
  • the foot fasteners 2009 and 2010 may be Velcroj M straps or other devices that enable the pressure sleeve 2000 to be formed around the foot.
  • An ankle strap 2008 comprising an ankle portion 304 and a heel portion 306 is provided to prevent the pressure sleeve 2000 from shifting or coming disengaged from the foot.
  • the ankle strap 2008 comprising an ankle portion 304 and a heel portion 306 may include a Velcro ⁇ M strap or other device that prevents the pressure sleeve 2000 from shifting or coming disengaged from the foot.
  • Figure 15 shows a console system generally indicated by 515 for enabling the application of pressure to a body limb.
  • the system 515 as illustrated in Figure 15, can be utilized in conjunction with the pressure sleeve-pressure accumulator combination 112 described above in reference to Figure 12.
  • the pressure sleeve used in conjunction with the console 515 preferably contains one or more cells divided into longitudinally extending compartments that are inflated and deflated essentially simultaneously.
  • the console 515 is preferably portable and battery operated and includes an air compressor 502. It is noted that air compressor 502 may be bypassed with pressurized air from an external source. The pressurized air would be introduced into the console 515 through pressurized air inlet 501.
  • the console 515 is also preferably configured to be carried on a user's body.
  • the console 515 may have clips (not shown) that allow the console 515 to be attached to the user's belt.
  • the console system shown in Figure 15 is used when it is desired to apply pressure rapidly to a portion of a body limb.
  • the valve 505a is opened while the valves 505b, 505c, and 505d are closed, causing pressurized air to flow in the conduit 507 from the compressor 502 through the valve 505a into the tubular conduit 510a associated with a pressure accumulator, such as pressure accumulator 110 of Figure 12.
  • a pressure accumulator such as pressure accumulator 110 of Figure 12.
  • the processor 519 opens the valve 505b causing air to flow from the associated pressure accumulator into the cell, such as cell 115a of Figure 12.
  • FIGs 35-38 illustrate the operation of the present invention when a console, as illustrated in Figure 15, is connected to a pressure device, such as the pressure sleeve and pressure accumulator of Figures 39 and 40 as described above.
  • FIG 35 shows a console system generally indicated by 515 for enabling the application of pressure to a body limb. It is assumed for this discussion that the system 515, as illustrated in Figure 35, is connected to a pressure sleeve-pressure accumulator combination as illustrated in Figure 39.
  • the console system shown in Figures 35-38 is used when it is desired to apply pressure rapidly to a portion of a body limb.
  • the console 515 is preferably portable and battery operated and includes an air compressor 502.
  • air compressor 502 may be bypassed with pressurized air from an external source.
  • the pressurized air would be introduced into the console 515 through pressurized air inlet 501.
  • valve 505b is opened (in Figures 35-38, an open valve is denoted by light or non-bolded crossed lines) while the valves 505a, 505c, 505d, and release valve 530 are closed (in Figures 35-38, a closed valve is denoted by heavy or bolded crossed lines), causing pressurized air to flow in the conduit 507 (in Figures 35-38, arrows within the conduit 507 generally show the flow of air and double-ended arrows indicate either non- air flow or air flowing in both direction as dictated by the present pressure drops in the conduit 507) from the compressor 502 through the valve 505b into the tubular conduit 510b associated with a pressure accumulator (arrow indicating air flow away from console 520 to the accumulator connected to conduit 510b).
  • release valve 530 may also include a self-operated valve to allow the user to directly release the pressurized air from the system.
  • Figure 36 illustrates the situation when the pressure in the pressure accumulator reaches a predetermined value P A , as determined by the pressure gauge 503.
  • the processor opens the valve 505a causing air to flow from the associated pressure accumulator (see arrow indicating air flow from accumulator) into the cell (see arrow indicating air flow to cell).
  • valves 505a, 505b, and 505c are open, and valve 505d and the release valve 530 are closed.
  • the one-way valve 525 prevents the flow of air in the conduit 507 from the pressure accumulator towards the compressor 502.
  • Figure 37 illustrates the situation when the cell connected to the conduits 510a and 510c is deflated. As illustrated in Figure 37, the processor closes the valve 505b. In this situation, valves 505a and 505c and the release valve 530 are open, and valves 505b and 505d are closed. The process illustrated in Figures 35-37 is repeated until the therapy is terminated.
  • Figure 38 illustrates the situation at the end of operations and all connected sleeves are deflated. As illustrated in Figure 38, the processor opens all the valves to allow any pressurized air in a connected pressure device to be expelled through the release valve 530.
  • the pressure sleeve may include an inflatable cell.
  • the inflatable cell may include at least two intra-cell compartments, the intra-cell compartments being confluent and each compartment being elongated in a direction of the primary axis.
  • the inflatable cell may further include inner and outer shells of durable flexible material, the inner and outer shells being bonded together about a perimetric cell bond ands being further bonded together along compartmental bonds within the perimetric cell bond to define each intra- cell compartment.
  • the perimetric cell bond includes upper and lower perimetric cell bonds.
  • the compartmental bonds partly extend between the upper and lower perimetric cell bonds and include perforations to allow for confluent airflow between adjacent intra- cell compartments within the cell.
  • Adjacent intra-cell compartments are spatially fixed relative to each other, such that upon inflation of the cell, the cell becomes circumferentially constricted.
  • the bonds include welds.
  • the adjacent intra-cell compartments are contiguous, and the perforations are located adjacent the perimetric cell bond.
  • the perforations are also located between compartmental bonds extending from the upper and lower perimetric bonds.
  • the pressure accumulator includes a fastener device to fasten the pressure accumulator to a user of the compression system.
  • the compression console system is portable, battery operated with a rechargeable battery.
  • the compression system indicates an appropriate inflation and deflation sequence.
  • the pressure sleeve of the present invention may include an integral pressure accumulator and an inflatable cell operatively pneumatically connected to the integral pressure accumulator.
  • the pressure sleeve of the present invention may also be a therapeutic foot device that includes a pressure sleeve; a sole member; and a pressure accumulator provided in the sole member and operatively pneumatically connected to the pressure sleeve.
  • the present invention also contemplates a therapeutic pressure system that includes a pressure sleeve and a compression system console, pneumatically connected to the pressure sleeve, having a controller and compressor to provide controlled pressurized fluid to the pressure sleeve.
  • the controller upon entering a first mode, identifies a type of the pressure sleeve connected to the compression system console.
  • the therapeutic pressure system further includes a plurality of solenoids to convey pressurized air from the compressor to air conduits. The controller causes individual solenoids to activate so that the compressor supplies pressurized air through the activated solenoid to determine if a proper pressure device is connected thereto through an associated air conduit.
  • the various embodiments of the pressure sleeves of the present invention have been described in conjunction with a portable compression system console or small compression system console wherein the source of the pressurized air was within the console, the pressure sleeves of the present invention can be used with any compression system wherein the source of pressurized air may be without the console.
  • the source of the air pressure for inflation of the pressure sleeves can be located in the patient's bed or be built into the wall of a room.
  • This source of pressurized air can be directly connected to the pressure sleeves via proper air conduits (assuming that a pressure control device that regulates or control the delivery of pressurized air to the pressure sleeves is associated with the pressurized air source) or can be connected to the pressure sleeves of the present invention through a control device or system that regulates or control the delivery of pressurized air to the pressure sleeves of the present invention.
  • the present invention contemplates a system where the source of pressurized air is integral with the pressure control device or a system where the source of pressurized air is not integral with the pressure control device.

Abstract

La présente invention concerne un système miniaturisé ambulant et portable automatique destiné à appliquer une pression pneumatique à un membre d'une personne. Ce système comprend une unité source de fluide portable et ambulant (51, 60, 64), un conduit (54) destiné à distribuer le fluide généré par cette unité, un accumulateur de pression (110, 310) et une gaine de pression (52) raccordée au conduit et conçue pour envelopper un membre. Cette gaine de pression contient une ou plusieurs cellules (2) individuellement gonflables, chaque cellule étant subdivisée en au moins deux compartiments (7) intracellulaires confluents s'étendant longitudinalement le long de l'axe du membre. Ces compartiments intracellulaires sont gonflés et dégonflés sensiblement simultanément par l'unité source de fluide portable. L'accumulateur de pression peut être relié de manière souple à l'unité source de fluide et connecté de manière pneumatique à celle-ci, mais sans être solidaire de cette unité. Cet accumulateur de pression peut aussi être solidaire de la gaine de pression.
PCT/IL2003/000927 2002-11-06 2003-11-06 Systeme de compression pneumatique portable automatique WO2004041146A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003276663A AU2003276663A1 (en) 2002-11-06 2003-11-06 Automatic portable pneumatic compression system
EP03810572A EP1699409A1 (fr) 2002-11-06 2003-11-06 Systeme de compression pneumatique portable automatique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37028302A 2002-11-06 2002-11-06
US10/370,283 2002-11-06

Publications (1)

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WO2004041146A1 true WO2004041146A1 (fr) 2004-05-21

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PCT/IL2003/000927 WO2004041146A1 (fr) 2002-11-06 2003-11-06 Systeme de compression pneumatique portable automatique

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EP (1) EP1699409A1 (fr)
AU (1) AU2003276663A1 (fr)
WO (1) WO2004041146A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006082459A1 (fr) * 2005-02-03 2006-08-10 Eirona Gauci Dispositif(s) a assistance pneumatique facilitant la mobilite
WO2006109112A1 (fr) * 2004-12-28 2006-10-19 Medical Compression Systems (Dbn) Ltd. Appareil d'assistance au flux vasculaire par compression externe synchronisee avec le flux de phase veineux
GB2468611A (en) * 2005-06-02 2010-09-15 Yung-Hsiang Liu Preparation of multipotent cells from monocytes
FR2950245A1 (fr) * 2009-09-22 2011-03-25 Daniel Maunier Systeme pour le massage ou le drainage lymphatique
AT511365A1 (de) * 2011-05-12 2012-11-15 Maurer Sonja Vorrichtung zur massage eines unterschenkels
US9125787B2 (en) 2011-09-30 2015-09-08 Covidien Lp Compression garment having a foam layer
US9402779B2 (en) 2013-03-11 2016-08-02 Covidien Lp Compression garment with perspiration relief

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388200A2 (fr) * 1989-03-16 1990-09-19 The Kendall Company Manchon compressible sur toute sa longueur
US6007559A (en) * 1998-06-12 1999-12-28 Aci Medical Vascular assist methods and apparatus
US6290662B1 (en) * 1999-05-28 2001-09-18 John K. Morris Portable, self-contained apparatus for deep vein thrombosis (DVT) prophylaxis
US20020042583A1 (en) * 1998-03-11 2002-04-11 Jakob Barak Automatic portable pneumatic compression system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0388200A2 (fr) * 1989-03-16 1990-09-19 The Kendall Company Manchon compressible sur toute sa longueur
US20020042583A1 (en) * 1998-03-11 2002-04-11 Jakob Barak Automatic portable pneumatic compression system
US6007559A (en) * 1998-06-12 1999-12-28 Aci Medical Vascular assist methods and apparatus
US6290662B1 (en) * 1999-05-28 2001-09-18 John K. Morris Portable, self-contained apparatus for deep vein thrombosis (DVT) prophylaxis

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7637879B2 (en) 2003-12-29 2009-12-29 Medical Compression Systems, (Dbn) Ltd. Method and apparatus for assisting vascular flow through external compression synchronized with venous phasic flow
WO2006109112A1 (fr) * 2004-12-28 2006-10-19 Medical Compression Systems (Dbn) Ltd. Appareil d'assistance au flux vasculaire par compression externe synchronisee avec le flux de phase veineux
WO2006082459A1 (fr) * 2005-02-03 2006-08-10 Eirona Gauci Dispositif(s) a assistance pneumatique facilitant la mobilite
GB2468611A (en) * 2005-06-02 2010-09-15 Yung-Hsiang Liu Preparation of multipotent cells from monocytes
FR2950245A1 (fr) * 2009-09-22 2011-03-25 Daniel Maunier Systeme pour le massage ou le drainage lymphatique
AT511365A1 (de) * 2011-05-12 2012-11-15 Maurer Sonja Vorrichtung zur massage eines unterschenkels
AT511365B1 (de) * 2011-05-12 2013-01-15 Maurer Sonja Vorrichtung zur massage eines unterschenkels
US9125787B2 (en) 2011-09-30 2015-09-08 Covidien Lp Compression garment having a foam layer
US9402779B2 (en) 2013-03-11 2016-08-02 Covidien Lp Compression garment with perspiration relief

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