Patent Publication Number: US-11389335-B2

Title: Extensible dressings

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application claims the benefit of the earlier filing date of U.S. provisional patent application 62/565,631 filed Sep. 29, 2017, the entirety of which application is hereby incorporated by reference herein as if fully set forth herein. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates to dressings such as bandages or tapes improved extensibility. The present invention further relates to dressings such as bandages or tapes which are extensible so as to at least partially conform to a body contour at wound surface upon stretching of the dressing. 
     BACKGROUND OF THE INVENTION 
     Dressings such as bandages and tapes for applying to and/or covering the skin have been known for some time. Such dressings have gained wide acceptance for closing minor wounds, protecting minor wounds and/or covering abrasions. In some instances, microporous or breathable, bandages or tapes have been developed and are used either to cover minor wounds (including wounds that have been partially healed). 
     While such dressings have been greatly improved over the years in that, for example, they have incorporated microporous materials allowing the wound to breath and permitting water vapor to escape from the wound, hence, reducing chances of wound maceration, there remains a need for dressings which improves extensibility and which, optionally, to yield to at least partially conform to the contour of the body of the user in response to a movement of the skin surface at a site of a wound. Accordingly, in order for a dressing to provide the aforementioned attributes, the dressing comprises a wound dressing assembly providing improved extensibility, comprising a layer of resilient material and a backing layer attached to the layer of resilient material by discrete adhesive regions disposed on a surface of the layer of resilient material at discrete areas thereof. 
     It is, therefore, an aspect of the present invention to provide dressings that may be used to cover, protect wounds and facilitate wound healing. It is also an aspect of the present invention to provide a wound dressing assembly comprising a layer of resilient material and a backing layer both having improved elongation. It is also an aspect of the present invention to provide a wound dressing assembly comprising a layer of resilient material and a backing layer, wherein the layer of resilient material is longitudinally extendable x upon stretching of any backing layer attached thereto. It is a further aspect of the present invention to provide a wound dressing assembly comprising a layer of resilient material and a backing layer attached to the layer of resilient material by discrete adhesive regions disposed on a surface of the layer of resilient material at discrete areas thereof. Other aspects of the present invention will be readily apparent from the ensuing description and claims. 
     SUMMARY OF THE INVENTION 
     The present invention relates to a dressing comprising a layer of resilient material, the layer of resilient material having a length direction (LD) and a width direction (WD), which together define a horizontal plane (HP), the horizontal plane HP having a first surface and a second opposed surface, a longitudinal centerline (LC) and a transverse centerline (TC), 
     the layer of resilient material further including one or more pleats formed in at least a portion thereof, each pleat comprising two or more folds, at least one of which folds each pleat shares in common with a neighboring pleat when there are two or more pleats, each pleat further has a length extending in a direction taken along the pleat length, a pleat width, and a lengthwise centerline (PC) bisecting the pleat width, 
     each pleat includes two or more folds incorporated so as to form an open end and a closed end, with a pair of side walls of the pleat, each side wall extending between a fold contributing to formation of the open end and the closed end, wherein one or more pleats has a pair of adjacent closed ends, spaced apart by a substantially fold-free segment of the layer of resilient material, and 
     wherein the direction of each pleat length independently makes an angle φ with the longitudinal centerline LC in the horizontal plane HP, and wherein the angle φ has a value that falls within a range specified by the equation: 0°&lt;φ&lt;180°. 
     The present invention also relates to a dressing comprising a layer of resilient material, the layer of resilient material having a length direction (LD) and a width direction (WD), which together define a horizontal plane (HP), the horizontal plane HP having a first surface and a second opposed surface, a longitudinal centerline (LC) and a transverse centerline (TC), the layer of resilient material further including one or more pleats formed in at least a portion thereof, each pleat comprising two or more folds, at least one of which folds each pleat shares in common with a neighboring pleat when there are two or more pleats, each pleat further has a length extending in a direction taken along the pleat length, a pleat width, and a lengthwise centerline (PC) bisecting the pleat width, wherein the direction of each pleat length independently makes an angle φ with the longitudinal centerline LC in the horizontal plane HP, and wherein the angle φ has a value that falls within a range specified by the equation: 0°&lt;φ&lt;180°. 
     The present invention further relates to a dressing comprising a layer of resilient material, the layer of resilient material having: 
     (a) a length direction (LD) and a width direction (WD), which together define a horizontal plane (HP), the horizontal plane HP having a first surface and a second opposed surface, a longitudinal centerline (LC) and a transverse centerline (TC); 
     (b) one or more pleats formed in at least a portion of the layer of resilient material, each pleat comprising two or more folds, at least one of which folds each pleat shares in common with a neighboring pleat, each pleat further has a pleat length extending in a pleat direction, a pleat width, and a lengthwise centerline (PC) bisecting the pleat width, wherein each pleat direction of a pleat length independently makes an angle φ with the longitudinal centerline LC in the horizontal plane HP, and wherein the angle φ has a value that falls within a range specified by the equation: 0°&lt;φ&lt;180°; 
     (c) a plurality of discrete adhesive regions disposed on the second surface of the layer of resilient material at discrete areas of the layer of resilient material; and 
     (d) an additional layer of material having a first surface and a second opposed surface, the first surface of the additional layer of material adhered to the second surface of the layer of resilient material by the plurality of discrete adhesive regions. 
     The present invention still further relates to a dressing comprising a layer of resilient material, the layer of resilient material having: 
     (i) a first longitudinal edge and a second longitudinal edge, which together define a width (W) of the layer of resilient material; 
     (ii) a first transverse edge and a second transverse edge, which together define a length (L) of the layer of resilient material, the length L and width W of the layer of resilient material  12  having a length direction (LD) and a width direction (WD) respectively, the length direction LD and the width direction WD together defining a horizontal plane (HP), the horizontal plane HP having a first surface and a second opposed surface, a longitudinal centerline (LC), and a transverse centerline (TC); and 
     (iii) a plurality of pleats formed in at least a portion of the layer of resilient material, each pleat comprising a multiplicity of folds, each fold extending from the first longitudinal edge to the second longitudinal edge, each pleat having a closed end (or an apex)  36  defined by a fold, an open end spaced from and opposite the closed end (or apex), and a trailing side wall and an opposing leading side wall sharing a common transverse edge running along the fold of the closed end (the apex) of the pleat, each of the trailing and leading side walls of the pleat further has a second transverse edge spaced from and opposite the common transverse edge and disposed on opposite sides of the open end of the pleat, 
     wherein at least two (adjacent) neighboring pleats are arranged in a spaced relation to each other with a substantially fold-free segment of the layer of resilient material spanning the distance from the second transverse edge of the leading side wall of one of the pleats to the second transverse edge of the trailing sidewall of the neighboring pleat. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       An embodiment of this invention will now be described in greater detail, by way of illustration only, with reference to the accompanying drawings, in which: 
         FIG. 1A  shows a perspective view of a dressing in according with an exemplary embodiment of the present invention; 
         FIG. 1B  shows a perspective view of the coordinate system, including axes LD, WD, TD in relation to the horizontal plane HP of a layer of resilient material in accordance with an exemplary embodiment of the present invention; 
         FIG. 2A  shows a top perspective view of a dressing including a layer of resilient material having a plurality of pleats formed therein and an additional layer of material adhered to the layer of resilient material; 
         FIG. 2B  shows an exploded view of the dressing of  FIG. 2A  further including a release liner disposed on the face of the layer of resilient material opposite to the face on which is disposed the additional layer of material; 
         FIG. 2C  shows an exploded view of the dressing of  FIG. 2B  further including discrete adhesive regions disposed proximate to each of the transverse edges of the layer of resilient material; 
         FIG. 3A  shows a perspective view of an exemplary embodiment of the layer of resilient material in accordance with the present invention, showing a coordinate system located on a pleat on the layer of resilient material to illustrate angles φ and β; 
         FIG. 3B  shows a side view of the exemplary embodiment of the layer of resilient material of the invention illustrated in  FIG. 3A ; 
         FIG. 4  shows a perspective view of another exemplary embodiment of the layer of resilient material in accordance with the present invention; 
         FIG. 5A  shows a perspective view of another exemplary embodiment of the layer of resilient material in accordance with the present invention; 
         FIG. 5B  shows a side view of the exemplary embodiment of the layer of resilient material in  FIG. 5A ; 
         FIG. 6  shows a top perspective view of another exemplary embodiment of the layer of resilient material in accordance with the present invention; 
         FIG. 7  shows a top perspective view of another exemplary embodiment of the layer of resilient material including different types of pleats formed therein; 
         FIG. 8A  shows a top perspective view of another exemplary embodiment of the layer of resilient material including pleats with rounded folds; 
         FIG. 8B  shows a top perspective view of the exemplary embodiment of the layer of resilient material in  FIG. 8A  including discrete adhesive regions disposed proximate to each of the transverse edges of the layer of resilient material; and 
         FIG. 8C  shows a top perspective view of the exemplary embodiment of the layer of resilient material in  FIG. 8A , further including a plurality discrete adhesive regions located on each of the pleats of the layer of resilient material. 
         FIG. 9A  shows a top perspective view of an exemplary embodiment of the layer of resilient material having pleats in accordance with the present invention; 
         FIG. 9B  shows a side view of the exemplary embodiment in accordance with  FIG. 9A ; 
         FIG. 10A  shows a top perspective view of an exemplary embodiment of the dressing in accordance with the present invention; 
         FIG. 10B  shows a side view of the exemplary embodiment of the dressing illustrated in  FIG. 10A ; 
         FIG. 11A  shows a top perspective view of an exemplary embodiment of a dressing in accordance with the present invention; 
         FIG. 11B  shows a side view of the exemplary embodiment of the dressing illustrated in  FIG. 11A ; 
         FIG. 12A  shows a side view of an exemplary embodiment of a dressing in accordance with the present invention adhered to a skin surface at or near an extended elbow joint; 
         FIG. 12B  shows a magnified side view of the exemplary embodiment of the dressing and extended elbow joint of  FIG. 12A   
         FIG. 12C  shows a side view of an exemplary embodiment of the dressing and elbow joint of  FIG. 12A  with the elbow joint in a flexed configuration; and 
         FIG. 12D  shows a magnified side view of the exemplary embodiment of the dressing and flexed elbow joint of  FIG. 12C . 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The dressing of the present invention can comprise, consist of, or consist essentially of the essential elements and limitations of the invention described herein, as well any of the additional or optional features, components, or limitations described herein. 
     The term “comprising” (and its grammatical variations) as used herein is used in the inclusive sense of (and, interchangeably with the terms) “having” or “including” and not in the exclusive sense of “consisting only of.” The terms “a” and “the” as used herein are understood to encompass the plural as well as the singular. 
     As used herein, terms “skin” and “tissue” are interchangeable and refer to mammalian skin. 
     All documents incorporated herein by reference, by portion or in their entirety, are only incorporated herein to the extent that they are not inconsistent with this specification. 
     In certain embodiments, the present invention as disclosed herein may be practiced in the absence of any component, element (or group of components or elements) or method step which is not specifically disclosed herein. 
     Referring to the drawings in detail, wherein like reference numerals indicate like elements throughout, there is shown in  FIGS. 1A-8C , a dressing, generally designated by the reference numeral  10 , in accordance with an exemplary embodiment of the present invention. 
     Pleated Layer of Resilient Material 
     As illustrated in  FIG. 1A , a dressing  10  in accordance with an exemplary embodiment of the present invention comprises a layer of resilient material  12  having a first surface  14  and second surface  16 , opposing the first surface  14 , the surfaces  14 ,  16  extending in a length direction (LD) and a width direction (WD) (see  FIGS. 1A-2C ), which directions define a horizontal plane (HP).  FIG. 1B  shows how the length direction (LD) and the width direction (WD) of the surface of the layer of resilient material  12  together define the horizontal plane (HP). The first surface  14  and the second opposed surface  16  of the layer of resilient material  12  include the same longitudinal centerline (LC) extending in the length direction (LD) and a transverse centerline (TC) extending in the width direction (WD) as shown with respect to dressing  10  in  FIGS. 1A and 1B . 
     In certain embodiments, the layer of resilient material  12  is formed from any suitable nonwoven fabrics, including, but not limited to, spunlace, spunbond, thermo bond, wetlaid nonwoven fabrics. Spunlace nonwovens are typically made using a mechanical bonding process (spun-lacing method) which employs jets of water to entangle fibers, deposition of the entangled fibers onto a collecting belt in a uniform random manner, followed by bonding of the entangled fibers. and thereby provide fabric integrity. Any suitable synthetic fibers can be used to produce spunlace nonwoven fabrics, including polypropylene, polyethylene, polyethylene terephthalate, nylon, and the like. 
     Thermal bonded nonwovens are fabrics produced by using heat to melt thermoplastic powders or fibers, including polyester, polypropylene, and polyethylene terephthalate fibers. Typically, the thermal bonding process begins by taking a thermoplastic fiber or a blend of thermoplastic fibers and forming them into a fiber batt, using air-laying machines, for example. The resulting fibrous webs are then heated using various thermal bonding methods, including through-air bonding and ultrasonic energy bonding. 
     Wetlaid nonwovens are typically produced in a process similar to paper making in which a nonwoven web is produced by filtering an aqueous suspension of fiber onto a screen conveyor belt or perforated drum. Many wet laid nonwovens are made with wood pulp or other natural fibers blended with synthetic fibers. 
     As illustrated in  FIGS. 1A, and 3A  an exemplary embodiment of the layer of resilient material  12  comprises a plurality of pleats  18 , each pleat comprising folds  20  such that when two or more contiguous pleats  18  are formed in the layer of resilient material  12  each pleat  18  shares two or more of which folds  20  in common with a neighboring pleat  18 . A number of different types of pleats  18  are known in the art. Examples of pleated structures useful in the current invention include, but are not limited to, those shown in  FIGS. 2A-7, 9A, and 9B . 
     Pleats may be incorporated into the layer of resilient material  12  by any suitable methods known in the art, including by a mechanical folding, for example. 
       FIG. 6A , for example, shows a layer of resilient material  12  having one or more pleats  18 , each of which pleats  18  having two or more folds  20 , which can be rounded folds as shown in  FIG. 6A  or creased folds  20  as shown in  FIG. 7 . In one embodiment, as shown in  FIG. 6A , each pleat  18  includes rounded folds  20 , at least one of which rounded folds  20  is shared in common between two neighboring pleats  18 . Each pleat  18  of the layer of resilient material  12  in  FIG. 6A  includes a pleat length  22 , the pleat length  22  extending in a pleat direction  24 . Each pleat direction  24  of a pleat length  22  independently makes an angle φ with the longitudinal centerline LC in the horizontal plane HP of the layer of resilient material  12 . In  FIG. 6A , pleat direction  24  of a pleat length  22  is shown as making an angle φ, with the longitudinal centerline LC (not shown), wherein φ is about 90°. However, the angle φ can have a range of values specified by the equation: 0°&lt;φ&lt;180°, optionally from 30°&lt;φ&lt;150°, or optionally from 40°&lt;φ&lt;140°. As such,  FIG. 6B  illustrates a top view of an exemplary layer of resilient material  12  having two or more pleats  18 , each having a pleat length  22  extending in a pleat direction  24 , the pleat direction  24  making an angle φ with the longitudinal centerline LC of the layer of resilient material  12 , wherein, angle φ has a non-zero value less than 90°, for example, about 60°, about 45°, or about 30°. 
     In one embodiment, as shown in  FIGS. 3A and 3B , a layer of material  12  has one or more pleats  18 , each of which pleats  18  including two or more folds  20 . Unlike the pleats of the embodiment of  FIG. 6A , the pleats of the embodiment of  FIGS. 3A and 3B  have creased (e.g., sharp or angled) folds  20 , each “crease” of the creased fold  20  defining a closed end  36 . In one embodiment, each pleat  18  includes creased folds  20 , at least one of which creased folds  20  is shared in common between two neighboring pleats  18 . Each pleat  18  of the layer of resilient material  12  in  FIG. 3A  includes a pleat length  22 , and extends in a pleat direction  24 . Each pleat direction  24  of a pleat length  22  independently makes an angle φ with the longitudinal centerline LC (not shown) in the horizontal plane HP of the layer of resilient material  12 . In  FIG. 3A , pleat direction  24  of a pleat length  22  is shown as making an angle φ, wherein angle φ is about 90°, with the longitudinal centerline LC of the layer of resilient material  12 . However, the angle φ can have a range of values specified by the equation: 0°&lt;φ&lt;180°, optionally from 30°&lt;φ&lt;150°, or optionally from 40°&lt;φ&lt;140°. In one embodiment, each pleat  18 , in  FIG. 3A , includes one creased fold defining a closed end  36  of the pleat  18 , one or two creased folds  20 , each of which define a root (i.e., the fold  20  [creased or non-creased] furthest away from the skin surface of a user and, accordingly, as the case may be, closest to the additional layer of material  28 ) of the pleat  18 , and a pair of legs (or side walls) L 58  and T 58  defining pleat  18  sidewalls, the pair of legs (or side walls) L 58  and T 58  of each pleat  18  being joined to one another at the closed end  36  of the pleat  18 , i.e. share a common fold  20  at the closed end  36  of the pleat  18 . In one embodiment, each of the side walls L 58  and T 58  of a pleat  18  shares a common fold  20  with a side wall L 58  or a side wall T 58  of a neighboring pleat  18  (i.e. at the root of the neighboring pleat  18 ). In one embodiment, each pleat  18 , includes one or two creased folds  20 , each of which define a root of the pleat  18 , and a pair of legs (or side walls) L 58  and T 58  defining pleat  18  sidewalls, wherein the leading pleat leg (or side wall) L 58  has a length lb and the trailing pleat  18  leg (or side wall) T 58  has a length la. In one embodiment, as shown in  FIGS. 3A and 3B , the leading pleat leg (or side wall) L 58  of any pleat  18  has a length lb and the trailing pleat leg (or side wall) T 58  of the same pleat  18  has a length la, wherein the length lb and the length la are substantially equal. The leading pleat  18  leg (or side wall) L 58  of any pleat  18  can be longer than, shorter than, or the same length as the trailing pleat  18  leg (or side wall) T 58  of the same pleat  18 . As such, in one embodiment, as shown in  FIG. 4 , the layer of resilient material  12  includes pleats  18 , each pleat  18  including a trailing pleat leg (or side wall) T 58  and a leading pleat leg (side wall) L 58 , wherein the trailing pleat leg (or side wall) T 58  is longer than the leading pleat leg (or side wall) L 58 , i.e., la&gt;lb. 
     In one embodiment, a dressing  10  of the present invention includes a layer of resilient material  12 , as illustrated in  FIGS. 3A and 3B , including one or more pleats  18 , each of which pleats  18  includes the two or more folds  20  incorporated to form an open end  34  (i.e., as in the “open” portion of a “V” or “L”) and a closed end  36  (i.e., as in the angled corner opposite the “open” portion of such “V” or “L”), with a pair of side walls (i.e., leading side wall L 58  and trailing side wall T 58 ) of the pleat  18 , each side wall extending between a fold  20  contributing to formation of an open end  34  and the closed end  36 . In one embodiment of the pleats  18  of the layer of resilient material  12  the leading side wall L 58  and trailing side wall T 58  of a pleat  18  share a common transverse edge  70 A at the closed end  36  of the pleat  18 . 
     In one embodiment of the layer of resilient material  12 , such as in  FIGS. 5A and 5B , each of the leading side wall L 58  and trailing side wall T 58  of a pleat  18  has a transverse edge (or pleat line)  70 A at a different closed end  36  of the pleat  18 . 
     In one embodiment of the layer of resilient material  12 , any pleat  18  is resiliently structurally biased (or, has a mechanical tendency for positioning) toward substantially overlying a leading side wall L 58  (or a trailing sidewall T 58 ) of an adjacent pleat  18  or it is structurally biased toward overlaying an adjacent segment  72  of the layer of resilient material  12  interposed between the pleat  18  and a neighboring pleat  18 . 
     In one embodiment, as shown in  FIGS. 3A and 3B , the layer of resilient material  12 , one or more of the pleats  18  has open end  34  and a closed end  36  and a pair of side walls (i.e., leading side wall L 58  and trailing side wall T 58 ), each side wall extending between a fold  20  contributing to formation of the open end  34  and the closed end  36 , the one or more pleats  18  being resiliently structurally biased axially (or, has a mechanical tendency for maintaining positioning) at an angle β with the horizontal plane HP of the layer of resilient material  12 . In one embodiment of the layer of resilient material  12 , one or more of the pleats  18  has an open end  34  and a closed end  36  and a pair of side walls (i.e., leading side wall L 58  and trailing side wall T 58 ), each side wall extending between a fold  20  contributing to formation of the open end  34  and the closed end  36 , the one or more pleats  18  being resiliently biased axially at an angle β with the horizontal plane HP of the layer of resilient material  12 , wherein the angle β, can have any value that falls within a range specified by the equation: 0°≤β≤180°, optionally, 0°≤β≤5° (or, 175°≤β≤180°. As such, in one embodiment of the layer of resilient material  12 , as illustrated in  FIG. 4 , a pleat  18  has an open end  34  and a closed end  36  and a pair of side walls (i.e., leading side wall L 58  and trailing side wall T 58 ), each side wall extending between a fold  20  contributing to formation of the open end  34  and the closed end  36 , wherein the pleat  18  is resiliently biased axially at an acute angle β with the horizontal plane HP of the layer of resilient material  12 . 
     In another embodiment of the dressing  10  in accordance with the present invention, the dressing  10  includes a layer of resilient material  12 , as illustrated in  FIGS. 5A and 5B , which includes one or more pleats  18 , each of which has folds  20  are arranged such that each pleat  18  has a pair of adjacent (i.e., near, or next to, each other without necessarily touching) closed ends  36 , substantially laterally spaced apart by a substantially fold-free segment  38  of the layer of resilient material  12 . As used herein, the term “substantially fold free” further means “fold-free” or “without any folds whatsoever”. In one embodiment, the layer of resilient material  12  includes one or more pleats  18 , each of which has folds  20  are arranged such that each pleat  18  has a pair of adjacent closed ends  36 , substantially laterally spaced apart by a substantially fold-free segment  38  of the layer of resilient material  12 , wherein each of the substantially fold-free segments  38  has an inner surface  40  and an opposed outer surface  42 , and wherein the inner surface  40  of a substantially fold-free segment  38  of any pleat  18  faces in a direction opposite to the direction of an inner surface  40  of a substantially fold-free segment  38  of an adjacent pleat  18 . As illustrated in  FIG. 5A , each pleat  18  has a pleat length  22  extending in pleat direction  24 , and a lengthwise centerline of PC bisecting the substantially fold-free segment  38 . Each pleat direction  24  of a pleat length  22  independently makes an angle φ with the longitudinal centerline LC (not shown) in the horizontal plane HP of the layer of resilient material  12 . In  FIG. 5A , pleat direction  24  of a pleat length  22  is shown as making an angle φ, wherein angle φ is about 90°, with the longitudinal center line LC of the layer of resilient material  12 . However, pleat lengths  22  of pleats  18  can be oriented to make any angle φ with the longitudinal center line LC such that the angle φ can have any value in the range of values specified by the equation: 0°&lt;φ&lt;180°, optionally 30°&lt;φ&lt;150°, or optionally from 40°&lt;φ&lt;140°. 
     In one embodiment, a dressing  10  of the present invention includes a layer of material  12 , as shown in  FIG. 7 , which has one or more pleats  18  of different types of pleats  18 . As shown in  FIG. 7 , the layer of resilient material  12  includes at least one pleat  18  including folds  20  arranged such that the at least one pleat  18  includes a pair of adjacent closed ends  36 , substantially laterally spaced apart by a substantially fold-free segment  38  of the layer of resilient material  12 . In one such embodiment, each of the remaining pleats  18  to each side of the at least one pleat  18  with the pair of adjacent closed ends  36 , has folds  20  arranged such that each pleat  18  only has one closed end  36 . 
     In one embodiment, a dressing  10  of the present invention includes a layer of resilient material  12 , as illustrated in  FIGS. 4 and 7 , which includes one or more pleats  18 , each of which pleats  18  includes the two or more folds  20  arranged such that includes one creased fold defining a closed end  36  of the pleat  18  (reference numeral  36 ), opposing one or two creased folds  20 , each of which defines a root of the pleat  18 , and a pair of legs L 58  and T 58  (i.e., leading side wall L 58  and trailing side wall T 58 ) each of which extends between a closed end  36  and a root (an opposing fold) of the pleat  18  and wherein the pair of legs L 58  and T 58  of each pleat  18  are axially oriented such that a leading leg L 58  of a pleat  18  at least partially overlaps a trailing leg T 58  of an adjacent pleat  18  or a segment of the layer of resilient material  12 . 
     In one embodiment, a dressing  10  comprises a layer of resilient material  12 , as shown in  FIGS. 9A and 9B , the layer of resilient material  12  includes: (i) a first longitudinal edge ( 62 ) and a second longitudinal edge ( 64 ), which together define a width (W) of the layer of resilient material  12 ; and (ii) a first transverse edge ( 66 ) and a second transverse edge ( 68 ), which together define a length (L) of the layer of resilient material  12 , the length L and width W of the layer of resilient material  12  having a length direction (LD) and a width direction (WD) respectively, the length direction LD and the width direction WD together defining a horizontal plane (HP), the layer of resilient material  12  having a first surface  14  and a second opposed surface  16 , a longitudinal centerline (LC), not shown, and a transverse centerline (TC), also not shown. In one embodiment, the layer of resilient material  12 , as shown in  FIGS. 9A and 9B , includes a plurality of pleats  18  formed in at least a portion of the layer of resilient material  12 , each pleat  18  comprising a multiplicity of folds  20 , each fold  20  extending from the first longitudinal edge  62  to the second longitudinal edge  64  of the layer of resilient material  12 , each pleat  18  having a closed end (or an apex)  36  defined by a fold  20 , an open end  34  spaced from and opposite the closed end (or apex)  36 , and a pair of opposing side walls, T 58  and L 58  respectively. In one such embodiment, the pair of opposing side walls T 58  and L 58  of a pleat  18  share a common transverse edge  70 A defined by the fold  20  at the closed end (or apex)  36  of the pleat  18 , each of the side walls T 58  and L 58  extending between the common transverse edge  70 A and the open end  34  of the pleat  18 , and wherein each of the side walls T 58  and L 58  further includes a second transverse edge  70 B opposite the common transverse edge  70 A and defined by a fold  20  at or proximate the open end  34  of the pleat  18 . In one embodiment, as shown in  FIGS. 9A and 9B , the layer of resilient material  12  includes a plurality of pleats  18 , at least two of which are arranged in a spaced relation to each other with a substantially fold-free segment  72  of the layer of resilient material  12  extending from the second transverse edge  70 B of the side wall L 58  of one of the pleats  18  to the second transverse edge  70 B of the sidewall TL 58  of the other pleat  18 . In one embodiment, as illustrated in  FIGS. 1A, and 2A-2C , the dressing  10  in accordance with an exemplary embodiment of the present invention further includes an additional layer of material  28  attached to the layer of resilient material  12 . Any suitable method of attaching the additional layer of material  28  to the layer of resilient material  12  may be used, including using an adhesive. The additional layer of material  28  can be in the form of a single layer or multiple layers and may be incorporated to act as a protective backing layer for the layer of resilient material  12 . When used as a backing layer, additional layer of material  28  may, in addition to the rectangular shape illustrated in  FIGS. 1A, and 2A-2C , have various other shapes, including but not limited to, circular, oval, ovoid, or oblong etc. In such an embodiment, the shape of the bandage and tape  10  may be defined by the shape of additional layer of material  28 . In some such embodiments, additional layer of material  28  may be thin, highly flexible or deformable, water-impervious, and clear or opaque. Generally, in some such embodiments, the thickness of additional layer of material  28  is between about 0.05 to 0.2 millimeter (“mm”) to achieve the forming and flexing characteristics desired. 
     In one embodiment, a dressing  10  comprises a layer of resilient material  12 , as shown in  FIGS. 10A and 10B , which includes a plurality of pleats  18 , at least two of which are arranged in a spaced relation to each other with a substantially fold-free segment  72  of the layer of resilient material  12  extending from a second transverse edge  70 B of a side wall L 58  of one of the pleats  18  to a second transverse edge  70 B of a sidewall TL 58  of the other pleat  18 . In one embodiment of the dressing  10 , as shown in  FIGS. 10A and 10B , the substantially fold-free segment  72  between a pair of neighboring pleats  18  has a surface  14 A. In one embodiment of the dressing  10 , as shown in  FIGS. 10A and 10B , a substantially fold-free segment  72  between a pleat  18  and a transverse edge ( 66  or  68 ) of the layer of resilient material  12  has a surface  14 B. 
     In one embodiment, a dressing  10  comprises a layer of resilient material  12 , as shown in  FIGS. 10A and 10B , and an additional layer of material  28  to which the layer of resilient material  12  is adhered at discrete adhesive regions  54 ,  48   a , and  48   b . In one embodiment, the substantially fold-free segments  72  of the layer of resilient material  12 , between neighboring pleats  18  and between pleats  18  and transverse edges  66  and  68 , are adhesively adhered to the layer of additional material  28 . Discrete adhesive regions  54 ,  48   a , and  48   b , spans the entire surface of a side of the substantially fold-free segments  72  (as shown in  FIGS. 10A and 10B ) or just a portion of the surface of a side of the substantially fold-free segments  72  (as shown in  FIGS. 11A and 11B ). 
     In one embodiment of the dressing  10 , as shown in  FIG. 12A , when applied to a surface, such as a skin surface of an extended human forearm  74 , each of the plurality of pleats  18  formed in the layer of resilient material  12  is forced to substantially overlay the substantially fold-free segment  72  between it (the pleat  18 ) and a neighboring pleat  18  or is forced to substantially overlay the substantially fold-free segment  72  between it (the pleat  18 ) and a transverse edge  66  or  68  of the layer of resilient material  12 . In one embodiment of the dressing  10 , as shown in  FIGS. 12A and 12B , when applied to a surface of an articulated joint, such as a skin surface of a human elbow joint  76 , each of the plurality of pleats  18  formed in the layer of resilient material  12  is forced to substantially overlay the substantially fold-free segment  72  between it (the pleat  18 ) and a neighboring pleat  18  or between it (the pleat  18 ) and a transverse edge  66  or  68  of the layer of resilient material  12  when the elbow joint  76  is extended. In one embodiment, as shown in  FIGS. 10A-11B , each pleat  18  has a pair of side walls L 58  and T 58  arranged substantially in touching relationship near or at the open end  34  of the pleat  18 . Similarly, as shown in  FIG. 12A , wherein each pleat  18  is forced to substantially overlay a substantially fold-free segment  72  of the layer of resilient material  12  as a consequence of being pressed against a surface, such as a skin surface of an extended human forearm  74 , each pair of side walls L 58  and T 58  of each pleat  18  is arranged substantially in touching relationship near or at the open end  34  of the pleat  18 , thereby restricting the extent of the opening of the open end  34  of each pleat  18 . In contrast, when the elbow joint  76  is flexed as in  FIG. 12C , each of the plurality of pleats  18  remains substantially in an overlapping relation with an adjacent substantially fold-free segment  72  of the layer of resilient material  12 , but each of the open ends  34  of the plurality of pleats  18  has an opening  34 ′ that is greater in extent (e.g., wider apart) than the opening  34  of a pleat  18  in the embodiment of  FIG. 12A . In one embodiment, as in  FIGS. 12C and 12D , each pair of side walls L 58  and T 58  of each pleat  18  is spaced apart (in direction of arrows) to a greater extend at or near the open end  34  each of pleats  18  (as compared to their counterparts in the embodiment illustrated in  FIGS. 12A and 12B ) as a consequence of the additional layer of material  28  stretching to accommodate the elbow joint  76  in a flexed configuration. Without being limited by theory, it is believed that the presence of pleats  18  in the layer of resilient material  12  prevents or reduces any inhibitory or restrictive effect that the layer of resilient material  12  might exert, without such pleats, on the extensibility of the additional layer of material  28 . 
     Optional Components 
     Additional Layer of Material 
     In certain such embodiments, where additional layer material  28  acts as a backing layer, the material used in forming the additional layer  28  should be both conformable to the contours of the body and flexible so as to permit free movement of the body part wearing the product. In certain embodiments, it can be a woven or nonwoven fabric, a film or a foam. Polymeric materials useful in forming backing layers include polyolefin (such as polyethylene), polyurethane, and polyvinylchloride. Other examples of backings include, but are not limited to, nonwoven, woven, or knitted fabrics such as cotton, polyester, polyurethane, rayon and the like. 
     Polyethylene film may be optionally used to form additional layer of material  28  where additional layer of material  28  acts as a backing layer, and, in such instances, particularly effective results can be achieved with stretchable, elastomeric films formed of polyurethane, which has the further advantage of gas (including water vapor) transmissibility. It is to be understood, however, that, in such instances, other flexible, water insoluble polymeric films known in the art may be used. Furthermore, where additional layer of material  28  is used as a backing layer, additional layer of material  28  may be formed from closed-cell polymeric foam, particularly one with an integral skin covering the side of the closed-cell polymeric foam facing away from the skin of the user. In certain such embodiments, foam layers formed of polyurethane or polyethylenes are suitable, while other polymeric foams having similar properties may be used. In other embodiments, where additional layer of material  28  is used as a backing layer, additional layer of material  28  may be made from other polyolefins, vinyl polyethylene acetate, textile non-woven fabrics, rubber, or other materials known in the adhesive article art. In certain embodiments, polymers used to form additional layer of material  28  where additional layer of material  28  acts as a backing layer generally have viscosity of from about 500 to 500,000 centipoises at temperatures of about 190° C., or from about 1,000 to 30,000 centipoises at temperatures of about 190° C., or from about 3,000 to 15,000 centipoises at temperatures of about 190° C. 
     In certain embodiments, where additional layer of material  28  acts as a backing layer, additional layer of material  28  may be impermeable to liquid, but permeable to gas, which allows the wound and the skin to which the bandage and tape  10  of the present invention is adhered to breathe. In one embodiment, where additional layer of material  28  acts as a backing layer, additional layer of material  28  may have pores of such a size that will allow only the passage of gases, which have molecules of extremely small size. 
     Finally, where additional layer of material  28  acts as a backing layer, additional layer of material  28  may be perforated for still further ventilation of the skin. In certain such embodiments, perforations may be circular in area and have a range of diameters, such as from about 0.1 to about 0.8 millimeters. In certain other embodiments, however, where additional layer of material  28  acts as a backing layer, additional layer of material  28  may, when necessary, be totally impermeable to gases. 
     Adhesive 
     In some embodiments of the dressing  10 , the layer of resilient material  12  further incorporates on at least one of the first (or skin facing) and second surfaces  14  and  16 , an adhesive to provide adherence of the layer of resilient material  12  to the additional layer of material  28  and to a tissue/skin surface. When incorporated onto the layer of resilient material  12  of dressing  10 , the adhesive is applied so as not restrict or inhibit the two or more folds  20  of the one or more pleats  18  from having a bias to return the length L of the layer of resilient material  12 , after being extended to a second length L 2 , from the second length L 2  to a first length L 1 , which is shorter than the second length L 2 . In general, any of a variety of pressure-sensitive adhesives can be used with the layer of resilient material  12  of the dressing  10 . Exemplary pressure-sensitive adhesives, include pressure-sensitive adhesives that are biocompatible with human skin, including water soluble and water insoluble pressure-sensitive adhesives and pressure-sensitive adhesives that are dispersible in an aqueous environment. Examples of commercially available dispersible pressure-sensitive adhesive include: those sold under the trade name of HL-9415-X (available from H.B. Fuller Company). Another suitable adhesive includes about 10-75% by weight of a polyalkyloxazoline polymer, 10-75% by weight of a functional diluent comprising a hydroxy compound or a carboxylic acid compound, and 5-50% by weight of a tackifier. Thus, suitable pressure sensitive adhesive may vary in their compositions. Some may comprise hydrocolloids. The hydrocolloid element used may be any substance that has a good performance in this utilization, as for example, sodium carboxymethylcellulose, pectin, xanthan gum, polysaccharides, sodium or calcium alginates, chitosan, seaweed extract (carrageenan), polyaspartic acid, polyglutamic acid, hyaluronic acid or salts and derivatives thereof, among others. Hydrocolloids, such as sodium carboxymethylcellulose and pectin, among others, are agents that form gels as soon as they come into contact with bodily fluids, from wounds, for example. When used in adhesive bandages, these hydrocolloids are combined with elastomers and/or adhesives. In certain embodiments, the layer of resilient material  12  comprising such hydrocolloids should provide a humid environment (but without saturation), which environment is a situation suitable for facilitating healing. 
     Other conventional adhesives known for such use in wound dressings may be used with the dressing  10  of the present invention. For example, pressure-sensitive acrylic adhesives, including those containing a resin for increasing adhesion, a cohesion increasing agent, an absorption agent (preferably a polyacrylate superabsorbent, a polyacrylate salt superabsorbent or a mixture thereof), and/or a plasticizer and optionally a pigment. 
     When applied to the layer of resilient material  12  of the dressing  10  of the present invention, the pressure-sensitive adhesive may be configured in discontinuous patterns, arranged in lines, screen, spray or any other configurations within the purview of a person skilled in the art. 
     In one embodiment, as shown in  FIGS. 2A and 2B , a dressing  10  of the present invention, the adhesive is disposed on or contacts the second surface  16  of the layer of resilient material  12  in the form of one or more discrete adhesive regions  54  at discrete areas of the layer of resilient material  12 . In one embodiment, dressing  10  further includes an additional layer of material  28 , the additional layer of material  28  including a first surface  30  and an opposed second surface  32 , wherein the first surface  30  of the additional layer of material  28  is adhered to the second surface  16  of the layer of resilient material  12  by the one or more discrete adhesive regions  54 . 
     In one embodiment, as shown in  FIG. 8A , a dressing  10  of the present invention includes a plurality of discrete adhesive regions  54  disposed on the first and second surfaces  14  and  16  of the layer of resilient material  12  at discrete areas of the layer of resilient material  12 . In one embodiment, as shown in  FIG. 8C , a dressing  10  of the present invention not only includes a plurality of discrete adhesive regions  54  disposed on the first of the layer of resilient material  12 , but also one or more discrete adhesive regions  48   a  and  48   b  disposed proximate a periphery  44  of the layer of resilient material  12 . In one embodiment, as shown in  FIG. 8B , the one or more discrete adhesive regions  48   a  and  48   b  disposed on the second surface  16  proximate a periphery  44  of the layer of resilient material  12  such that they form a pair of opposed adhesive regions spaced apart by an adhesive free-region  50 , wherein the adhesive region  48   a  is located proximate the periphery  44  of the layer of resilient material  12  substantially parallel to the transverse centerline TC (not shown) and the adhesive region  48   b  is also located at the periphery  44  of the layer of resilient material  12  but substantially diametrically opposite the adhesive region  48   a . In one embodiment, the layer of resilient material  12  of the dressing  10 , includes the adhesive-free region  50  extending from an inner edge  52   a  of the adhesive region  48   a  to an inner edge  52   b  of the adhesive region  48   b.    
     In one embodiment, as illustrated in  FIGS. 2A to 2C , the dressing  10  further includes an additional layer of material  28 , the additional layer of material  28  including a first surface  30  and an opposed second surface  32 . In one embodiment, the additional layer of material  28  is adhered to the second surface  16  of the layer of resilient material  12  illustrated in  FIGS. 8A to 8C  at the first surface  30  of the additional layer of material  28  by a plurality of discrete adhesive regions, reference numeral  54  in  FIG. 8A  and/or reference numerals  48   a  and  48   b  in  FIG. 8A  in  FIGS. 8B and 8C , to produce a dressing  10  in accordance with exemplary embodiments of the present invention. In one embodiment, such as illustrated in  FIGS. 2B and 2C , a releasable release liner  56  may be added to the dressing  10  in accordance with the present invention. As shown in  FIGS. 2A and 2B , release liner  56  is adapted to be releasably attached to the first surface  14  of the layer of resilient material  12 , for example, by an adhesive. The release liner  56  can be releasably attached to the first surface  14  of the layer of resilient material  12  at continuous or discrete adhesive regions, for example reference numerals  54 ,  48   a , and  48   b , disposed on the first surface  14  of the layer of resilient material  12 . 
     In one embodiment, as illustrated in  FIGS. 2A, 2B and 2C , the dressing  10  further includes an additional layer of material  28 , the additional layer of material  28  including a first surface  30  and an opposed second surface  32 , wherein the additional layer of material  28  is adhered to the second surface  16  of the layer of resilient material  12  at discrete adhesive regions such as identified by reference numerals  54 ,  48   a , and  48   b  in  FIGS. 8B and 8C  at the first surface  30  of the additional layer of material  28 . When the additional layer of material  28  is adhered to the second surface  16  of the layer of resilient material  12  illustrated either in  FIG. 8B , the first surface  30  of the additional layer of material  28  is adhered to the second surface  16  of the layer of resilient material  12  by the adhesive regions  48   a  and  48   b . When the additional layer of material  28  is adhered to the second surface  16  of the layer of resilient material  12  illustrated either in  FIG. 8C , the first surface  30  of the additional layer of material  28  is adhered to the second surface  16  of the layer of resilient material  12  by the adhesive regions  48   a  and  48   b  and by the plurality of discrete adhesive regions  54 , as shown in exploded view in  FIG. 2C . 
     Release Liner 
     In a further embodiment, as shown in  FIG. 2C , the dressing  10  includes a release liner  56 , the release liner  56  being in contact with, or which releasably contacts, the first surface  14  of the layer of resilient material  12  and/or, in releasably contacts the first surface  30  of the additional layer of material  28 . In certain embodiments, the release liner  56  and additional layer of material  28  are sized to extend beyond the periphery of the layer of resilient material  12  in at least one, or in one of more directions. The release liner  56  can be releasably attached to the first surface  14  of the layer of resilient material  12  by a continuous or discrete adhesive regions disposed on the first surface  14  of the layer of resilient material  12 . In one embodiment, the release liner  56  includes a first surface  60  and a second surface  58 , wherein the first surface  60  of the release liner  56  is releasably adhered to the first surface  14  of the layer of resilient material  12  by an adhesive disposed on the first surface  14  of the layer of resilient material  12 . 
     In one embodiment, as shown in  FIG. 2A , a dressing  10  includes of a layer of resilient material  12  which includes a plurality of discrete adhesive regions  54  disposed on the first and second surfaces  14  and  16  of the layer of resilient material  12  at discrete areas of the layer of resilient material  12 , the dressing  10  further includes an additional layer of material  28  and a release liner  56 , the additional layer of material  28  including a first surface  30  and an opposed second surface  32 , and the release liner  56  including a first surface  58  and a second surface  60 , wherein the first surface  30  of the additional layer of material  28  is adhered to the second surface  16  of the layer of resilient material  12  by the plurality of discrete adhesive regions  54 , and the second surface  60  of the release liner  56  is releasably adhered to the first surface  14  of the layer of resilient material  12  by the plurality of discrete adhesive regions  54  disposed on the first surface  14  of the layer of resilient material  12 . 
     The releasable liner  56  can be comprised of any suitable material, including, for example, polyethylene, polypropylene, kraft papers, polyester, polystyrene (PS), high impact polystyrene (HIPS) or composites of any of these materials. 
     Although specific embodiments of this invention have been shown and described herein, it is understood that these embodiments are merely illustrative of the many possible specific arrangements that can be devised in application of the principles of the invention. Numerous and varied other arrangements can be devised in accordance with these principles by those of ordinary skill in the art without departing from the spirit and scope of the invention. Thus, the scope of the present invention should not be limited to the structures described in this application, but only by the structures described by the language of the claims and the equivalents of those structures. 
     Embodiments of the Present Invention 
     1. A dressing comprising a layer of resilient material, the layer of resilient material having a length direction (LD) and a width direction (WD), which together define a horizontal plane (HP), the horizontal plane HP having a first surface and a second opposed surface, a longitudinal centerline (LC) and a transverse centerline (TC), the layer of resilient material further including one or more pleats formed in at least a portion thereof, each pleat comprising two or more folds, at least one of which folds each pleat shares in common with a neighboring pleat when there are two or more pleats, each pleat further has a length extending in a direction taken along the pleat length, a pleat width, and a lengthwise centerline (PC) bisecting the pleat width, wherein the direction of each pleat length independently makes an angle φ with the longitudinal centerline LC in the horizontal plane HP, and wherein the angle φ has a value that falls within a range specified by the equation: 0°&lt;φ&lt;180°.
 
2. The dressing of embodiment 1, wherein the lengthwise centerlines PC of a pleat is oriented substantially parallel relative to the lengthwise centerlines PC of an adjacent pleat.
 
3. The dressing of embodiment 1, wherein the lengthwise centerline PC of one or more pleats is oriented at angle φ with respect to the longitudinal centerline LC such that angle φ has a value that falls within a range specified by the equation: 0°&lt;φ≤90°.
 
4. The dressing of embodiment 1, wherein the lengthwise centerline PC of one or more pleats is oriented at angle φ with respect to the longitudinal centerline LC such that angle φ has a value that falls within a range specified by the equation: 90°&lt;φ&lt;180°.
 
5. The dressing of any of the previous embodiments or combinations thereof, wherein the longitudinal centerline LC divides the width of the layer of resilient material in two substantially equal halves.
 
6. The dressing of any of the previous embodiments or combinations thereof, wherein the transverse centerline TC divides the length L of the layer of resilient material in two substantially equal halves.
 
7. The dressing of any of the previous embodiments or combinations thereof, wherein the two or more folds in a pleat are incorporated to form an open end and a closed end.
 
8. The dressing of embodiment 7 (or, any of the previous embodiments or combinations thereof), wherein the open end and the closed end of a pleat are spaced from one another by a pair of side walls extending from the closed end to the open end of the pleat and wherein the pleat is axially oriented substantially orthogonal to the horizontal plane HP.
 
9. The dressing of any of embodiments 1-6 or combinations thereof (or, any of the previous embodiments or combinations thereof), wherein the two or more folds in each of the one or more pleats are arranged such that each pleat has an open end and a closed end spaced from the open end by a pair of side walls extending from the closed end to the open end of the pleat and wherein the pleat is axially oriented at an angle β to the horizontal plane HP, wherein the angle β has a value that falls within a range specified by the equation: 0°&lt;β≤180°.
 
10. The dressing of any of embodiments 1-6 or combinations thereof (or, any of the previous embodiments or combinations thereof), wherein the two or more folds in each of the one or more pleats are arranged such that each pleat has an open end and a closed end spaced from the open end by a pair of side walls extending from the closed end to the open end of the pleat and wherein the pleat is axially oriented at an angle β to the horizontal plane HP, wherein the angle β has a value that falls within a range specified by the equation: 90°≤β≤180°.
 
11. The dressing of any of embodiments 7-10 or combinations thereof (or, any of the previous embodiments or combinations thereof), wherein the two or more pleats having their open ends facing in alternately opposite directions with respect to the first surface and the second surface of the layer of resilient material.
 
12. The dressing of any of the previous embodiments or combinations thereof, wherein at least one of the one or more pleats has folds incorporated so as to form a pair of adjacent closed ends, spaced apart by a substantially fold-free segment of the layer of resilient material.
 
13. The dressing of embodiment 11 (or, any of the previous embodiments or combinations thereof), wherein each of the substantially fold-free segments of the layer of resilient material of the pleats has an inner surface and an outer surface, and wherein the substantially fold-free segments of the layer of resilient materials of the pleats are arranged such that the inner surface of a substantially fold-free segment of the layer of resilient material of any pleat faces in a direction opposite to the direction of an inner surface of a substantially fold-free segment of the layer of resilient material of an adjacent pleat.
 
14. The dressing of any of embodiments 1-9 and 11, or combinations thereof (or, any of the previous embodiments or combinations thereof), wherein the two or more folds are rounded folds.
 
15. The dressing of any of embodiments 1-13, or combinations thereof (or, any of the previous embodiments or combinations thereof), wherein the two or more folds are creased folds.
 
16. The dressing of any of the previous embodiments or combinations thereof, wherein the length L of the layer of resilient material is greater than its width W.
 
17. The dressing of any of the previous embodiments or combinations thereof, wherein the length L and the width W of the layer of resilient material are substantially equal.
 
18. The dressing of any of the previous embodiments or combinations thereof further including an additional layer of material adhered to at least a portion of the second surface of the layer of resilient material.
 
19. The dressing of any of the previous embodiments or combinations thereof, wherein the layer of resilient material further includes a first transverse periphery and a second opposed transverse periphery, a first and second discrete adhesive regions disposed on the second surface of the layer of resilient material respectively proximate each of the first and second transverse peripheries of the layer of resilient material, wherein the first and second discrete adhesive regions are spaced apart by a substantially adhesive free-region.
 
20. The dressing of embodiment 19 (or, any of the previous embodiments or combinations thereof), wherein the first discrete adhesive region and the second discrete adhesive region are substantially free of pleats.
 
21. The dressing of any of embodiments 12 and 20, or combinations thereof (or, any of the previous embodiments or combinations thereof), wherein the one or more pleats are located in an adhesive-free region of the layer of resilient material.
 
22. The dressing of any of the previous embodiments or combinations thereof, wherein the length L of the layer of resilient material is extendable between a first length L 1  and a second length L 2  longer than the first length L 1 .
 
23. The dressing of any of the previous embodiments or combinations thereof, wherein the two or more folds of each pleat are biased to return the length L of the layer of resilient material, after being extended to the second length L 2 , from the second length L 2  to the first length L 1 .
 
24. A dressing comprising a layer of resilient material, the layer of resilient material having:
 
     (a) a length direction (LD) and a width direction (WD), which together define a horizontal plane (HP), the horizontal plane HP having a first surface and a second opposed surface, a longitudinal centerline (LC) and a transverse centerline (TC); 
     (b) one or more pleats formed in at least a portion of the layer of resilient material, each pleat comprising two or more folds, at least one of which folds each pleat shares in common with a neighboring pleat, each pleat further has a pleat length extending in a pleat direction, a pleat width, and a lengthwise centerline (PC) bisecting the pleat width, wherein each pleat direction of a pleat length independently makes an angle φ with the longitudinal centerline LC in the horizontal plane HP, and wherein the angle φ has a value that falls within a range specified by the equation: 0°&lt;φ&lt;180°; 
     (c) a plurality of discrete adhesive regions disposed on the second surface of the layer of resilient material at discrete areas of the layer of resilient material; and 
     (d) an additional layer of material having a first surface and a second opposed surface, the first surface of the additional layer of material adhered to the second surface of the layer of resilient material by the plurality of discrete adhesive regions. 
     25. The dressing of any of the previous embodiments or combinations thereof, further including a release liner covering the first surface of the layer of resilient material. 
     26. The dressing of embodiment 25 (or, any of the previous embodiments or combinations thereof), wherein the release liner includes a first surface and an opposed second surface, the second surface of the release liner being releasably adhered to the first surface of the layer of resilient material.
 
27. A dressing comprising a layer of resilient material, the layer of resilient material having:
 
     (i) a first longitudinal edge and a second longitudinal edge, which together define a width (W) of the layer of resilient material; 
     (ii) a first transverse edge and a second transverse edge, which together define a length (L) of the layer of resilient material, the length L and width W of the layer of resilient material  12  having a length direction (LD) and a width direction (WD) respectively, the length direction LD and the width direction WD together defining a horizontal plane (HP), the horizontal plane HP having a first surface and a second opposed surface, a longitudinal centerline (LC), and a transverse centerline (TC); and 
     (iii) a plurality of pleats formed in at least a portion of the layer of resilient material, each pleat comprising a multiplicity of folds, each fold extending from the first longitudinal edge to the second longitudinal edge, each pleat having a closed end (or an apex)  36  defined by a fold, an open end spaced from and opposite the closed end (or apex), and a trailing side wall and an opposing leading side wall sharing a common transverse edge running along the fold of the closed end (the apex) of the pleat, each of the trailing and leading side walls of the pleat further has a second transverse edge spaced from and opposite the common transverse edge and disposed on opposite sides of the open end of the pleat, 
     wherein at least two (adjacent) neighboring pleats are arranged in a spaced relation to each other with a substantially fold-free segment of the layer of resilient material spanning the distance from the second transverse edge of the leading side wall of one of the pleats to the second transverse edge of the trailing sidewall of the neighboring pleat. 
     28. The dressing of embodiment 27 (or, any of the previous embodiments or combinations thereof), wherein the length L of the layer of resilient material is extendable between a first length L 1  and a second length L 2  longer than the first length L 1 . 
     29. The dressing of embodiment 28 (or, any of the previous embodiments or combinations thereof), wherein the multiplicity of folds of each pleat are biased to return the length L of the layer of resilient material, after being extended to the second length L 2 , from the second length L 2  to the first length L 1 .
 
30. The dressing of any of the previous embodiments or combinations thereof, wherein any pleat is arranged in a spaced relation with a neighboring pleat such that a substantially fold-free segment of the layer of resilient material spans the distance from the second transverse edge of the leading side wall of one of pleat to the second transverse edge of the trailing sidewall of a neighboring pleat.
 
31. The dressing of any of the previous embodiments or combinations thereof, wherein at least one pleat is movable between collapsed and upright configurations, where in the collapsed configuration the at least one pleat is in an overlaying relationship with the substantially fold-free segment of the layer of resilient material spanning the distance between it and its neighbor (an adjacent pleat), where in the upright configuration the at least one pleat is in a substantially upright orientation relative to the substantially fold-free segment of the layer of resilient as a consequence of being moved by the application of an external force to the layer of resilient material, and wherein the at least one pleat is biased to return to the collapsed configuration when the external force is removed.
 
32. The dressing of any of the previous embodiments or combinations thereof, wherein the plurality of pleats are movable between collapsed and upright configurations, where:
 
     (a) in the collapsed configuration, each of the plurality of pleats is succeeded by a neighboring pleat is in an overlaying relationship with the substantially fold-free segment of the layer of resilient material spanning the distance between it and the succeeding neighbor (an adjacent pleat), and 
     (b) in the upright configuration the plurality of pleats is in a substantially upright orientation relative to the substantially fold-free segment of the layer of resilient as a consequence of being moved by the application of an external force to the layer of resilient material, and wherein the plurality of pleats is biased to return to the collapsed configuration when the external force is removed. 
     33. The dressing of any of the previous embodiments or combinations thereof, wherein each pleat has a length, a direction, and a lengthwise centerline (PC) extending in a pleat direction, wherein the pleat direction makes an angle φ with the longitudinal centerline LC in the horizontal plane HP, wherein the angle φ has a value that falls within a range specified by the equation: 0°&lt;φ&lt;180°.
 
34. The dressing of embodiment 33 (or, any of the previous embodiments or combinations thereof), wherein the angle φ has a value that falls within a range specified by the equation: 0°&lt;φ≤90°.
 
35. The dressing of embodiment 33 (or, any of the previous embodiments or combinations thereof), wherein the angle φ has a value that falls within a range specified by the equation: 90°≤φ&lt;180°.
 
36. A dressing comprising a layer of resilient material, the layer of resilient material having a length direction (LD) and a width direction (WD), which together define a horizontal plane (HP), the horizontal plane HP having a first surface and a second opposed surface, a longitudinal centerline (LC) and a transverse centerline (TC),
 
     the layer of resilient material further including one or more pleats formed in at least a portion thereof, each pleat comprising two or more folds, at least one of which folds each pleat shares in common with a neighboring pleat when there are two or more pleats, each pleat further has a length extending in a direction taken along the pleat length, a pleat width, and a lengthwise centerline (PC) bisecting the pleat width, 
     each pleat includes two or more folds incorporated so as to form an open end and a closed end, with a pair of side walls of the pleat, each side wall extending between a fold contributing to formation of the open end and the closed end, wherein one or more pleats has a pair of adjacent closed ends, spaced apart by a substantially fold-free segment of the layer of resilient material, and 
     wherein the direction of each pleat length independently makes an angle φ with the longitudinal centerline LC in the horizontal plane HP, and wherein the angle φ has a value that falls within a range specified by the equation: 0°&lt;φ&lt;180°. 
     37. The dressing of embodiment 36 (or, any of the previous embodiments or combinations thereof), wherein the lengthwise centerlines PC of a pleat is oriented substantially parallel relative to the lengthwise centerlines PC of an adjacent pleat. 
     38. The dressing of embodiment 36 (or, any of the previous embodiments or combinations thereof), wherein the lengthwise centerline PC of one or more pleats is oriented at angle φ with respect to the longitudinal centerline LC such that angle φ has a value that falls within a range specified by the equation: 0°&lt;φ≤90°.
 
39. The dressing of embodiment 36 (or, any of the previous embodiments or combinations thereof), wherein the lengthwise centerline PC of one or more pleats is oriented at angle φ with respect to the longitudinal centerline LC such that angle φ has a value that falls within a range specified by the equation: 90°&lt;φ&lt;180°.
 
40. The dressing of any of embodiments 36-39 or combinations thereof, wherein the two or more pleats have their open ends facing in alternately opposite directions with respect to the first surface and the second surface of the layer of resilient material.
 
41. The dressing of any of embodiments 36-40 or combinations thereof, wherein each of the substantially fold-free segments of the layer of resilient material has an inner surface and an outer surface, and wherein the substantially fold-free segments of the layer of resilient material are arranged such that the inner surface of a substantially fold-free segment of the layer of resilient material of any pleat faces in a direction opposite to the direction of an inner surface of a substantially fold-free segment of the layer of resilient material of an adjacent pleat.
 
42. The dressing of any of embodiments 36-41, or combinations thereof, wherein the two or more folds of each pleat are creased folds.
 
     The dressing of any of the previous embodiments or combinations thereof, wherein the length L of the layer of resilient material is greater than its width W. 
     43. The dressing of any of the previous embodiments or combinations thereof, wherein the length L and the width W of the layer of resilient material are substantially equal. 
     44. The dressing of any of the previous embodiments or combinations thereof further including an additional layer of material adhered to at least a portion of the second surface of the layer of resilient material. 
     45. The dressing of any of the previous embodiments or combinations thereof, wherein the layer of resilient material further includes a first transverse periphery and a second opposed transverse periphery, a first and second discrete adhesive regions disposed on the second surface of the layer of resilient material respectively proximate each of the first and second transverse peripheries of the layer of resilient material, wherein the first and second discrete adhesive regions are spaced apart by a substantially adhesive free-region.
 
46. The dressing of embodiment 45 (or, any of the previous embodiments or combinations thereof), wherein the first discrete adhesive region and the second discrete adhesive region are substantially free of pleats.
 
47. The dressing of any of embodiments 36-46, or combinations thereof, wherein the one or more pleats are located in an adhesive-free region of the layer of resilient material.
 
48. The dressing of any of embodiments 36-47, or combinations thereof, wherein the length L of the layer of resilient material is extendable between a first length L 1  and a second length L 2  longer than the first length L 1 .
 
49. The dressing of any embodiments 36-48, or combinations thereof, wherein the two or more folds of each pleat are biased to return the length L of the layer of resilient material, after being extended to the second length L 2 , from the second length L 2  to the first length L 1 .