AU2013248259B2 - Compression sleeve with improved position retention - Google Patents

Abstract

COMPRESSION SLEEVE WITH IMPROVED POSITION RETENTION A compression garment (10) comprising: an inner layer (12) and an outer layer (18) in opposing relation with each other, the inner and outer layers (12, 18) defining a thigh section (1 la), a calf section (1 1b) and a bridge section (84) between the thigh and calf sections (1 la, 1 1b); first and second intermediate layers (14, 16) defining bladders (24a, 24b, 24c) disposed between the inner and outer layers (12, 18), at least one bladder (24a, 24b, 24c) located in the thigh section (1 la) and at least one bladder (24a, 24b, 24c) located in the calf section (1 la); and a stay up device (90) between the first intermediate layer (14) and the inner layer (12), the stay up device (90) having a first region (100) disposed in the thigh section (1 la), a second region (102) disposed in the calf section (1 1b) and a leg portion (106) extending between and interconnecting the first and second regions (100, 102) and disposed at least partially in the bridge section (84), the bridge section (84) is releasably attached to the calf section (1 1b) along a line of weakness (93) in the first and second intermediate layers (14, 16), and the second region (102) is removable from the calf section (1 1b) upon release of the bridge section (84) from the calf section (1 1b).

Description

1 COMPRESSION SLEEVE WITH IMPROVED POSITION RETENTION Field [0001] The present invention is directed generally to a compression device for applying compression therapy to a body part of a wearer, and more particularly to a compression device with an improved capability to retain its position on the body part. Background [0002] Compression garments for applying intermittent compression therapy to a body part (e.g., a limb such as a leg) have many applications, including deep vein thrombosis prophylaxis, edema prevention, and aiding in wound healing. It is sometimes desirable to provide active compression therapy during and after surgical procedures. The performance of these compression garments is sensitive to the ability of the garment to retain its initial fit and position around the body part. This can be very difficult when the patient moves, such as by walking, sitting, standing, and rolling over. The garments tend to loosen around the body part or slide down the body part causing misalignment of inflatable bladders on the garment with respect to the body part, which may result in ineffective compression therapy and/or discomfort. Thus, a compression garment needs to "stay up" in use. Object [0003] It is an object of the present invention to substantially overcome or ameliorate one or more of the disadvantages of the prior art, or at least provide a useful alternative. Summary [0004] An aspect of the present invention provides a compression garment comprising: an inner layer and an outer layer in opposing relation with each other, the inner and outer layers defining a thigh section, a calf section and a bridge section between the thigh and calf sections; first and second intermediate layers defining bladders disposed between the inner and outer layers, at least one bladder located in the thigh section and at least one bladder located in the calf section; and 2 a stay up device between the first intermediate layer and the inner layer, the stay up device having a first region disposed in the thigh section, a second region disposed in the calf section and a leg portion extending between and interconnecting the first and second regions and disposed at least partially in the bridge section, the bridge section is releasably attached to the calf section along a line of weakness in the first and second intermediate layers, and the second region is removable from the calf section upon release of the bridge section from the calf section. [0005] In one embodiment of the present invention a compression garment for applying compression to a part of a wearer's body generally comprises a layer of material sized and shaped for wrapping around the body part such that the layer of material encircles and conforms to the body part. A stay up device is operatively connected to the layer of material for supporting the layer of material against movement along a length of the body part. The stay up device includes a first region, a second region and at least one leg portion extending between and interconnecting the first and second regions. The second region being adapted to operatively engage a portion of the wearer's body adjacent to the second region for locating the stay up device relative to the wearer's body to support the layer of material in a generally fixed location relative to the body. [0006] In another embodiment of the present invention, a compression garment for applying compression to a part of a wearer's body generally comprises an inner layer and an outer layer in generally opposing relation with each other. The inner and outer layers define a thigh section, a calf section and a bridge section between the thigh and calf sections. The thigh section is sized and shaped for placement around a thigh of the wearer and the calf section is sized and shaped for placement around a calf of the wearer. Bladders are disposed between the inner and outer layers for applying pressure to the part of the wearer's body. At least one bladder is located in the thigh section and at least one bladder is located in the calf section. A stay up device is disposed between the inner and outer layers. The stay up device has a first region disposed at least partially in the thigh section of the garment, a second region disposed at least partially in the calf section of the garment and a leg portion extending between and interconnecting the first and second regions and disposed at least partially in the bridge section of the garment. The second region of the stay up device is adapted to engage a calf of the wearer to positively locate the stay up device for providing structural support to the thigh section of the garment.

3 [0007] Other features will be in part apparent and in part pointed out hereinafter. Brief Description of Drawings [0008] A preferred embodiment of the present invention will now be described, by way of an example only, with reference to the accompanying drawings wherein: [0009] Fig. 1 is a front elevation of one embodiment of a compression sleeve with an outer cover and bladder layers of the sleeve partially removed to show underlying layers; [0010] Fig. 2 is an exploded perspective of the compression sleeve; [0011] Fig. 2A is an enlarged, fragmentary view of Fig. 1 showing a perforation line extending across a left bridge of the compression sleeve; [0012] Fig. 2B is similar to Fig. 2A with the perforation line comprising circular openings; [0013] Fig. 2C is similar to Fig. 2A with the perforation line comprising slot-shaped openings; [0014] Fig. 2D is a section taken in the plane including line 2D--2D in Fig. 2A; [0015] Fig. 3 is a rear elevation of the compression sleeve showing an inner layer; [0016] Fig. 4 is an enlarged fragmentary elevation of an outer cover of the sleeve illustrating loop material; [0017] Fig. 5 is a front elevation of the compression sleeve with the outer cover removed; [0018] Fig. 6 is an enlarged perspective of a stay up insert of the compression sleeve; [0019] Fig. 7 is a perspective of the sleeve worn by a wearer illustrating interaction of the stay up insert with the wearer's leg; [0020] Fig. 8 is the perspective of Fig. 7 with portions of the sleeve partially removed to the stay up insert; and 4 [0021] Fig. 9 is an enlarged perspective of a second embodiment of an insert of the compression sleeve. [0022] Corresponding reference characters indicate corresponding parts throughout the drawings. Description of Embodiments [0023] Referring now to the drawings, and in particular to Figs. 1 and 2, one embodiment of a compression device (broadly, "a garment or a sleeve") for applying sequential compression therapy to a limb of a wearer is generally indicated at 10. The compression sleeve is of the type sized and shaped for being disposed around a leg of the wearer, but could be configured for application to other parts of the wearer's body. More specifically, the sleeve 10 has a width W (Fig. 1) for being wrapped around a full circumference of the leg and a length L (Fig. 1) for running from the ankle to a thigh of the leg. This type of sleeve is generally referred to in the art as a thigh-length sleeve including a thigh section 11 a, a calf section 1 lb and an ankle section 1 1c. It is understood that other types of compression devices for being disposed about other limbs of the wearer's body are within the scope of the present invention. [0024] Referring to Figs. 1 and 2, the compression sleeve 10 comprises four layers secured together in the illustrated embodiment of the present invention. The scope of the present invention is not limited to four layers. More specifically, the compression sleeve comprises an inner layer, generally indicated at 12, on which a first intermediate layer (broadly, a first bladder layer), generally indicated at 14, is overlaid. A second intermediate layer (broadly, a second bladder layer), generally indicated at 16, overlies the first intermediate layer 14 and is secured thereto. An outer cover generally indicated at 18, overlies the second intermediate layer 16. In use, the inner layer 12 is disposed most adjacent to the limb of the wearer and is in contact with the limb of the wearer, and the outer cover 18 is most distant from the limb of the wearer. A knee opening 19 is formed through the sleeve 10 that is generally aligned with the back of the knee when the sleeve is applied to the leg. The layers have the same geometric shape and are superposed on each other so that edges of the layers generally coincide. The inner layer 12 and outer layer 18 may be secured to each other and/or to the intermediate layers 14, 16 in any suitable manner. It is contemplated that one or more of the layers 12, 14, 16, or 18 may not be superposed on a corresponding layer, but slightly offset to accommodate a particular feature of a 5 patient's limb. Moreover, the number of sheets or thickness making up each layer 12, 14, 16, or 18 of the compression sleeve 10 may be other than described. The thickness of the layers may vary to add strength or to cause more expansion in one direction, such as toward the limb, during inflation. [0025] Referring to Figs. 1, 2 and 5, the first and second intermediate layers 14, 16, respectively, each include a single sheet of elastic material (broadly, "bladder material"). For example, the sheets 14 and 16 are made of a pliable PVC material as the bladder material. Layers 12 and 18 are made of a polyester material. The second intermediate layer 16 is secured to the first intermediate layer 14 via three separate bladder seam lines 22a, 22b, 22c defining a proximal bladder 24a, an intermediate bladder 24b and a distal bladder 24c, respectively, that are spaced apart longitudinally along the sleeve 10. The number of bladders may be other than three without departing from the scope of the present invention. As used herein, the terms "proximal", "distal", and "intermediate" represent relative locations of components, parts and the like of the compression sleeve when the sleeve is secured to the wearer's limb. As such, a ''proximal" component or the like is disposed most adjacent to a point of attachment of the wearer's limb to the wearer's torso, a "distal" component is disposed most distant from the point of attachment, and an "intermediate" component is disposed generally anywhere between the proximal and distal components. Terms such as "proximal," "distal," "intermediate," "upper," "lower," "inner" and "outer" are used for convenience in describing relative locations but are not absolute requirements with respect to the environment as to the location of the various components. [0026] For reasons discussed below, the proximal bladder 24a defines a proximal, lateral extension 25 near the upper edge margin of the sleeve 10 (see, Fig. 5). The bladders 24a, 24b, 24c are circumferential bladders meaning that they are sized and shaped to be wrapped around substantially the entire circumference of the wearer's limb or very nearly the entire circumference of the limb. For example, in one embodiment the bladders 24a, 24b, 24c each extend around at least 90% of a median circumference of a leg. It is to be understood that the circumferential extent may be other than described within the scope of the present invention 6 [0027] The intermediate layers 14, 16 may be secured together by radiofrequency welding, adhesive, or other chemical and/or mechanical process. It is understood that the intermediate layers 14, 16 may be secured together at other locations, such as around their peripheries and at bladder seam lines 22a, 22b, 22c to further define the shape of the inflatable bladders 24a, 24b, 24c. For purposes discussed below, the first intermediate layer 14 is secured to the inner layer 12 along a seam line 42 (Fig. 1) that runs along the outer periphery of the first intermediate layer 14 so that central regions of the bladders 24a, 24b, 24c are not secured to the inner layer 12. This permits the bladders 24a, 24b, 24c to move relative to the inner layer 12. The second intermediate layer 16 may also be secured to the inner layer 12 along the same seam line 42. The first intermediate layer 14 may be secured to the inner layer 12 by RF welding or adhesive or in other suitable ways. This structure improves comfort as described below. [0028] Referring to Figs. 2 and 4, each inflatable bladder 24a, 24b, 24c receives fluid from a source of compressed fluid (not shown) via a dedicated proximal bladder tube 26a, intermediate bladder tube 26b, and distal bladder tube 26c, respectively, (Fig. 2). A tube line need not be dedicated to a bladder to practice the invention. Each tube 26a, 26b, 26c is disposed between the intermediate layers 14, 16 and secured to the respective bladder 24a, 24b, 24c by the respective bladder seam line 22a, 22b, 22c. As shown best in Figs. 2 and 4, the first intermediate layer 16 defines a cutout 27 (Fig. 2) so that portions of the tubes 26a, 26b, 26c are not disposed between the intermediate layers. Other ways of securing the tubes 26a, 26b, and 26c to the bladders 24a, 24b, and 24c are within the scope of the invention. The opposite ends of the tubes 26a, 26b, 26c are grouped together using a second connector 30 (Figs. 1 and 2) that is adapted to fluidly connect the tubes to the source of compressed fluid. The source of compressed fluid may be an air compressor under the control of a microprocessor that sequentially pressurizes the bladders as is generally known in the art. An exemplary air compressor is described in U.S. Patent No. 5,876,359 to Bock, the disclosure of which is incorporated herein by reference. The bladders 24a, 24b, 24c may be configured to contain air pressurized to at least about 10 mm Hg (1333 Pa) to about 45 mm Hg (6000 Pa). The bladders should be capable of being repeatedly pressurized without failure. Materials suitable for the sheets include, but are not limited to, flexible PVC material that will not stretch substantially. In another embodiment, the intermediate layers may form a chamber for receiving an inflatable bladder that is formed separate from the chamber. In this embodiment, the layers need not be capable of containing pressurized air as along as the inflatable bladders are so capable. It will 7 be noted that the bladders 24a, 24b, 24c can have openings 32 extending completely through the bladders, as described in the embodiments of the present invention. [0029] Referring particularly to Figs. 1 and 5, the sleeve 10 defines a connecting section including a pair of bridge members 84 on opposite sides of the knee opening 19 that extend between and connect a proximal portion of the sleeve that includes the proximal bladder 24a to the remainder of the sleeve. The proximal tube 26a generally lies along an axis of bridge member 84 to help provide structural, lengthwise support to the sleeve 10. As shown best in Fig. 4, the cutout 27 in the intermediate sheet 16 does not extend through the bridge member 84. As explained above, the proximal bladder tube 26a is secured to the proximal bladder 24a at the proximal, lateral extension 25. The proximal bladder tube 26a runs along a side of a distal portion of the proximal bladder 24a so that it does not enter the bladder until it reaches the proximal, lateral extension 25. The proximal bladder tube 26a may provide support to the thigh section 11 a against bunching or sliding down the leg, but need not do so in the illustrated embodiments. [0030] Referring to Figs. 1, 3 and 5, the proximal bladder 24a is secured to the inner layer 12 and the outer cover 18 at spot welds 92 adjacent to the bladder openings 32 and within an outer perimeter of the bladder defined by the bladder seamline 22a. The spot welds 92 maintain the outer cover 18 and the inner layer 12 in proper position with respect to the bladders 24a, 24b, 24c. In other words, the spot welds 92 prevent the bladders 24a, 24b, 24c from substantially shifting relative to the inner layer 12 and the outer cover 18 while still providing the sleeve 10 with substantial flexibility. Too much movement of inner layer 12 and the outer cover 18 with respect to the bladders 24a, 24b, 24c may reduce the fit of the sleeve, thereby leading to reduced efficacy of the compression therapy. The proximal bladder 24a is free from securement to the inner layer 12 and outer cover 18 other than at the spot welds 92 to maintain flexibility of the sleeve so that mobility of the patient's leg is not compromised. Inner layer 12 may be joined to layer 16 at the spot welds 92 or the inner layer 12 may be joined at the seam line 34 of the opening 32. Away from the openings 32 and spot welds 92, the inner layer 12 is not joined to surface of the bladder material forming the bladder that expands to provide compression treatment to the patient's limb.

8 [0031] Referring to Figs. 1 and 4, the entirety of an outer surface of the outer cover 18 also acts as a fastening component of a fastening system for securing the sleeve 10 to the limb of the wearer. In a particular embodiment, the outer cover 18 of mesh (Fig. 4), for example, has an outer surface comprising loops 44 that acts as a loop component of a hook-and-loop fastening system. A mesh construction, as shown in Fig. 4, has interconnected or weaved fibers 21 of material forming the outer cover 18. The loops 44 may be formed as part of the material of the outer cover 18 or otherwise disposed on the surface of the outer cover. A suitable material with such construction is a polyester mesh loop 2103 sold by Quanzhou Fulian Warp Knitting Industrial Co., Ltd. of Quanzhou City, China. Hook components 46 (Fig. 3) are attached to an inner surface of the inner layer 12 at the proximal, intermediate and distal flaps 41a, 41b, 41c, respectively. The loops 44 of the outer cover 18 allow the hook components 46 (Fig. 3) to be secured anywhere along the outer surface of the outer cover when the sleeve 10 is wrapped circumferentially around the limb of the wearer. This allows for sleeve 10 to be of a substantially one-size-fits-all configuration with respect to the circumferences of different wearers' limbs. Moreover, the outer cover 18 having the loops 44 allows the practitioner to quickly and confidently secure the sleeve 10 to the wearer's limb without needing to align the fastening components. [0032] Referring to Figs. 2, 5 and 6, a stay up insert 90 (broadly, "a stay up device") is disposed between the first intermediate layer 14 and the inner layer 12. The insert 90 provides structural support to the sleeve 10 against buckling of the thigh section 11 a in a vertical direction, and from sliding down the leg (e.g., as might otherwise be caused by buckling of the bridge members 84). The insert 90 comprises a first section 100, a second section 102 including first and second foot portions 104 and a bridge including first and second leg portions 106 connecting the first and second sections. The first section 100 is defined by a larger, roughly rectangular portion having rounded proximal corners. The first and second leg portions 104 each have a maximum width that is less than the width of either the first section 100 or the second section. Holes 108 in the first section 100 are generally aligned with the openings 32 in the proximal bladder 24a. An indent 110 in the first section 100 also provides clearance for an opening 32 in the proximal bladder 24a. The holes 108 and indent 110 are provided so that the insert 90 does not impede the evaporation function of the openings 32 in the intermediate layers 14, 16. Aligning the holes 108 with the openings 32 in the intermediate layers 14, 16 also fixes the insert 90 in place within the sleeve 10.

9 [0033] The leg portions 106 extend distally from the first section 100 and flank the knee opening 19. The bridge portions 106 include reduced width sections 112, the purpose of which will be explained hereinafter. The reduced width portions 112 have widths less than the maximum widths of the leg portions 106. The first and second foot portions 104 extend medially from the respective leg portion 106, below the knee opening 19. Free ends of the extension portions 104 are spaced apart. When the garment 10 is applied to the leg, the space overlies the popliteal vein. In this way, the insert 90 does not impede block flow of blood out of the leg through the popliteal vein. The insert 90 may be formed from pliable foam or any other suitable material for providing structural rigidity to the sleeve 10 to aid in keeping the sleeve in place on the limb of the wearer However, the foam is preferably also sufficiently pliable so that if in no way impedes wrapping the garment 10 around the leg. [0034] Referring to Figs. 7 and 8, the first section 100 of the insert 90 extends substantially the entire height of thigh section 1 la of the sleeve 10. In this manner, the insert 90 provides support to the thigh section 11 a to resist against bunching (buckling) of the thigh section or the tendency of the thigh section to slide down the limb. The leg portions 106 of the insert 90 extend along the length of the bridge members 84 of the sleeve 10 providing structural rigidity to the bridge members of the sleeve. The foot portions 104 are configured to engage a calf of the wearer causing the calf to serve as a shelf for supporting the proximal portion (thigh section 11 a and bridge members 84) of the sleeve 10. Also, upon flexion of the leg, the calf will exert an upward force on the foot portions 104 providing an additional supporting force to keep the sleeve 10 in its intended position on the leg. [0035] In a second embodiment, an insert 90' (Fig. 9) comprises a bridge having leg portions 106' having no reduced width sections. The insert 90' otherwise functions substantially the same as insert 90. [0036] In the illustrated embodiment, the thigh section 1 la is removable from the remainder of the sleeve 10 to convert the sleeve from thigh length to knee length. In particular, the proximal portion of the sleeve 10 that includes the proximal bladder 24a and the bridge members 84 are removable from the remainder of the sleeve. Tear lines comprising perforation lines 93 in the intermediate layers 14, 16, extend transversely across the intermediate layers adjacent to where the bridge members 84 join thigh section 1 la to the calf and ankle sections 1 1b, 1 1c. In a preferred embodiment, the removal is destructive and permanent. It is understood that the 10 sleeve may include one tear line or more than two tear lines within the scope of the invention. It is also understood that the shapes of the perforations may be circular (FIG. 2B) or slot-shaped (FIG. 2C) or other shapes within the scope of the invention. Other ways of weakening the sleeve 10 at the tear lines besides the perforation lines 93 are within the scope of the present invention. For example, the tear lines may include a thinned out portion of the intermediate layers 14, 16. It is also understood that the tear lines may be positioned to disconnect different ones of the sleeve sections (i.e., besides the thigh section 11 a). [0037] Neither the inner liner 12 nor the outer cover 18 have lines of weakness (e.g., perforations), although such a configuration is contemplated and within the scope of the present invention. Instead, as shown best in Figs. 2A and 2D, both the inner liner 12 and the outer cover 18 are discontinuous generally adjacent to the perforation lines 93 in the intermediate layers 14, 16 so as to define respective opposing terminal edge margins 94 adjacent to the perforation lines. Each perforation line 93 is disposed between respective opposing terminal edge margins 94 of the inner liner 12 and the outer cover 18. In the illustrated embodiment, the terminal edge margins 94 of the inner liner 12 and the outer cover 18 are at least partially welded or otherwise secured to respective intermediate layers 14, 16 along terminal securement lines 95a, 95b associated with the respective left and right bridge members 84. The weld lines 95a, 95b are contiguous with the seamline 42 securing the bladder layers 14, 16 to the inner liner 12 and outer cover 18. [0038] The terminal securement lines 95a on the bridge member 84 (Figs. 2A-2C) are discontinuous and do not extend laterally across the bridge member. Instead, the terminal securement lines 95a, 95b converge toward each other and the center of the bridge 84. The terminal securement lines 95a, 95b then turn back and curve down to the end of the terminal edge margins 94. On the left bridge member, the securement lines 95a, 95b define opposed inwardly projections on opposite sides of the bladder tube 26a and facilitate location of the bladder tube. However, the weld lines 95a do not permanently join the bladder tube 26a so that it can be removed, as described hereinafter. The reduced width sections 112 of the insert 90 are aligned with the terminal securement lines 95a, 95b where they converge and provide space for this convergence.

11 [0039] Generally, each terminal edge margin 94 is connected to the intermediate layers 14, 16 on a respective opposite side of the perforation line 93. By making the inner liner 12 and the outer cover 18 discontinuous at locations adjacent to the perforation lines 93 in the intermediate layers 14, 16, the sleeve is more easily torn at the perforation lines than if the inner liner and the outer cover were continuous and included perforation lines like the perforation lines in the intermediate layers. Moreover, the sleeve's resistance to tearing is greater at the terminal securement lines 95a, 95b. This greater tear resistance at the terminal securement lines 95a, 95b facilitates more precise tearing of the sleeve along the perforation lines 93 and prevents incidental, significant deviation from the tear lines. [0040] It is understood that the tear lines may be in other locations other than illustrated for removing the thigh section 1 la from the remainder of the sleeve 10. As illustrated, the calf and ankle sections 1 1b, 1 1c do not have tear lines between them. It is also understood that the sleeve 10 may be configured to have other removable portions in addition to or instead of the thigh section 11 a within the scope of the present invention. [0041] As described previously, the proximal bladder tube 26a is disposed between the intermediate layers 14, 16 and extends through one of the bridge members 84. The proximal bladder tube 26a is releasably secured to the connector 30 so that the proximal bladder tube can be disconnected from the connector and so that the thigh section 11 a can be removed from the remainder of the sleeve 10. The connector 30 and the proximal bladder tube 26a may be of the type disclosed in pending U.S. Patent Application No. 10/784,607, filed February 23, 2004 and assigned to the assignee of the present application, the entirety of which is herein incorporated by reference. In particular, the connector 30 permits non-destructive disconnection of the proximal bladder tube 26a in preparation for removing the thigh section 11 a. Because the proximal bladder tube 26a and leg portions 106 of the insert 90 extend through the bridge members 84 generally transverse to the tear line, it may be difficult to tear the sleeve 10 along the corresponding perforation lines in the intermediate layers 14, 16. Accordingly, a tube access opening or window 96 is formed by an opening 96a in the outer cover 18 and an aligned opening 96b in the second intermediate layer 16. Because the window extends through the outer cover 18 and the second intermediate layer 16 adjacent to the outer cover to expose a portion of the proximal bladder tube to facilitate removal of the proximal bladder tube 26a from the bridge member 84 before tearing the sleeve 10. In the illustrated embodiment, the tube access window 12 96 is generally oblong and extends less than the full axial length of one of the bridge members 84. [0042] In use, the proximal bladder tube 26a can be disconnected from the connector 30 and then pulled through the tube access window 96 so that the tube no longer extends past the tear line between the intermediate layers 14, 16. With the tube 26a removed from between the intermediate layers 14, 16 at the corresponding tear line, the sleeve can be easily torn along the perforation lines 93 to remove the proximal portion, including the proximal bladder 24a, and the bridge members 84. [0043] Similarly, as shown in the first embodiment of the insert 90, the leg portions 106 have the reduced width section 112 which makes it easier to pull the leg portions 106 and foot portions 104 from the knee section 1 lb of the sleeve 10. In addition to accommodating the terminal securement lines 95a, 95b, the reduced width portion 112 reduces the amount of material of the insert 90 at and below the bridge members 84. This construction makes it easier to remove the leg portions 106 and foot portions 104, from the knee section 1 lb of the sleeve 10. Thus, if the thigh section 1 la and bridge members 84 are removed from the garment 10, the perforations 93 (see, Fig. 2a) are torn part way. The reduced width section 12 and extensions 104 are pulled out from the calf section 1 1b, and tearing of the perforation 93 is completed to separate the thigh section 11 a and bridge members 84 from the remainder of the garment 10. Other ways of achieving separation are contemplated. For example, the leg portions of an insert (not shown) may have lines of weakness (e.g., perforations) that generally align with the perforations 93. In that instance, the extensions and part of the reduced width sections would be torn away from the remainder of the insert. [0044] Having described the invention in detail, it will be apparent that modifications and variations are possible without departing from the scope of the invention defined in the appended claims. [0045] When introducing elements of the present invention or the preferred embodiments(s) thereof, the articles "a", "an", "the" and "said" are intended to mean that there are one or more of the elements. The terms "comprising", "including" and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements.

13 [0046] In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained. [0047] As various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Claims (10)

1. A compression garment comprising: an inner layer and an outer layer in opposing relation with each other, the inner and outer layers defining a thigh section, a calf section and a bridge section between the thigh and calf sections; first and second intermediate layers defining bladders disposed between the inner and outer layers, at least one bladder located in the thigh section and at least one bladder located in the calf section; and a stay up device between the first intermediate layer and the inner layer, the stay up device having a first region disposed in the thigh section, a second region disposed in the calf section and a leg portion extending between and interconnecting the first and second regions and disposed at least partially in the bridge section, the bridge section is releasably attached to the calf section along a line of weakness in the first and second intermediate layers, and the second region is removable from the calf section upon release of the bridge section from the calf section.

2. The compression garment of claim 1, wherein the inner layer and the outer layer are discontinuous generally adjacent the line of weakness in the first and second intermediate layers.

3. The compression garment of claim 1, wherein the line of weakness is a thinned out portion of the first and second intermediate layers.

4. The compression garment of claim 1, wherein the line of weakness is a perforation line in the first and second intermediate layers.

5. The compression garment of claim 1, wherein further comprising a bladder tube extending through the bridge section and the outer layer and the second intermediate layer define a tube access opening through which the bladder tube is removable.

6. The compression garment of claim 1, wherein the second region is adapted to operatively engage a portion of the wearer's body adjacent to the second region for locating the stay up device relative to the wearer's body to support the layer of material in a generally fixed location relative to the body. 15

7. The compression garment of claim 6, wherein the tube access window extends less than the full axial length of the bridge section.

8. The compression garment of claim 1, wherein the thigh section has a height and the first region of the stay up device extends substantially along the entire height of the thigh section.

9. The compression garment of claim 1, wherein the at least one bladder defines at least one opening extending completely through the at least one bladder, the stay up device defining at least one hole in the first region, the at least one hole generally aligned with the at least one opening defined by the at least one bladder.

10. The compression garment of claim 1, wherein the stay up device is pliable foam. Covidien LP Patent Attorneys for the Applicant/Nominated Person SPRUSON & FERGUSON