Portable ambulant pneumatic compression system
First Claim
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1. An automatic portable ambulant system for applying pressure to a body limb comprising:
- a sleeve including first and second inflatable cells, each of the first and second cells including at least three intra-cell compartments;
said 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 longitudinal axes of the compartments being adapted to substantially align with a primary axis of a body limb, the first and second cells being longitudinally adjacent to each other and being adapted to be arranged coaxially with respect to a primary axis of a body limb, the first and second cells being intermittently inflatable to apply pressure to a body limb, wherein each inflatable cell comprises inner and outer shells of durable flexible material;
said inner and outer shells being bonded together to form a perimetric cell bond, said perimetric bond defining outer boundaries of an inflatable cell and boundaries between the inflatable cells, said inner and outer shells being further bonded together to form compartmental bonds, said compartmental bonds defining boundaries between 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 perimetric cell bonds extending substantially in the longitudinal direction, and wherein the compartmental bonds partly extend between the upper and lower perimetric cell bonds, wherein the compartmental bonds include perforations to allow for confluent air flow between intra-cell compartments within a cell, the first cell becoming circumferentially constricted when the first cell is inflated, the second cell becoming circumferentially constricted when the second cell is inflated, the first and second cells being non-confluent such that the first and second cells are separately inflatable, said intra-cell compartments of the first and second cells being interdigitated;
means for laterally coupling the outermost intra-cell compartments within a cell so as to form a sleeve, the sleeve has a circumference of Nπ
r when the cell is deflated, and the sleeve has a circumference of 2Nr when the cell is inflated, where N is the number of intra-cell compartments within the cell, and where r is the cross-sectional radius of each intra-cell compartment when inflated, so as to provide for circumferential constriction;
a portable hand-held pump unit for intermittently inflating any one or more selected cells of the sleeve via a conduit, said pump unit including a control unit for determining the sequence of cell inflation and deflation.
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Abstract
An automatic portable ambulant miniaturized system for applying pneumatic pressure to a body limb including a portable ambulant hand-held fluid source unit, a conduit for delivering fluid generated by the unit, and a sleeve coupled to the conduit and adapted to envelop a body limb. The sleeve contains one or more individually inflatable cells, each cell being subdivided into two or more longitudinally extending confluent compartments along the axis of the body limb. The compartments are inflated and deflated essentially simultaneously by the portable fluid source unit.
221 Citations
7 Claims
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1. An automatic portable ambulant system for applying pressure to a body limb comprising:
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a sleeve including first and second inflatable cells, each of the first and second cells including at least three intra-cell compartments;
said 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 longitudinal axes of the compartments being adapted to substantially align with a primary axis of a body limb, the first and second cells being longitudinally adjacent to each other and being adapted to be arranged coaxially with respect to a primary axis of a body limb, the first and second cells being intermittently inflatable to apply pressure to a body limb, wherein each inflatable cell comprises inner and outer shells of durable flexible material;
said inner and outer shells being bonded together to form a perimetric cell bond, said perimetric bond defining outer boundaries of an inflatable cell and boundaries between the inflatable cells, said inner and outer shells being further bonded together to form compartmental bonds, said compartmental bonds defining boundaries between 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 perimetric cell bonds extending substantially in the longitudinal direction, and wherein the compartmental bonds partly extend between the upper and lower perimetric cell bonds, wherein the compartmental bonds include perforations to allow for confluent air flow between intra-cell compartments within a cell, the first cell becoming circumferentially constricted when the first cell is inflated, the second cell becoming circumferentially constricted when the second cell is inflated, the first and second cells being non-confluent such that the first and second cells are separately inflatable, said intra-cell compartments of the first and second cells being interdigitated;
means for laterally coupling the outermost intra-cell compartments within a cell so as to form a sleeve, the sleeve has a circumference of Nπ
r when the cell is deflated, and the sleeve has a circumference of 2Nr when the cell is inflated, where N is the number of intra-cell compartments within the cell, and where r is the cross-sectional radius of each intra-cell compartment when inflated, so as to provide for circumferential constriction;
a portable hand-held pump unit for intermittently inflating any one or more selected cells of the sleeve via a conduit, said pump unit including a control unit for determining the sequence of cell inflation and deflation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification
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Current AssigneeZimmer Surgical Incorporated (Zimmer Biomet Holdings, Inc.)
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Original AssigneeMedical Compression Systems (DBN) Ltd.
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InventorsBarak, Jakob, Naveh, Yoav, Ehrlich, Sharon
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Primary Examiner(s)YU, JUSTINE ROMANG
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Application NumberUS09/413,968Time in Patent Office1,167 DaysField of Search601/148-152, 417/411, 417/234, 602/13, 606/201, 606/202, 128/DIG.20US Class Current601/151CPC Class CodesA61F 5/012 inflatableA61H 2201/5007 computer controlledA61H 2205/10 LegA61H 9/0078 with intermittent or altern...
