This disclosure relates to back braces and orthotic methods for supporting and/or relieving pain in the lower back. More particularly, this disclosure relates to back orthoses and orthotic methods that provide an adjustable level of directionally focused pressure to the lower back and high circumferential compression to the lower torso, particularly at the abdomen.
Back braces are intended to alleviate or eliminate pain and suffering caused by various disorders along a person's spine. Some spinal disorders relate specifically to the lumbar region (vertebrae L1 through L5), while other spinal disorders relate specifically to the thoracic lumbar region (vertebrae T5 through S1). Other spinal disorders stem at least in part from osteo-degenerative causes. The dynamic, integrated nature of various portions of the spine—as well as the many other variables that affect spinal disorders—make the occurrence of such disorders dependent on a large number of factors.
The alleviation of back pain sometimes includes the application of a mechanical advantage by way of a circumferential torso brace. Systems that include circumferential torso braces provide some degree of temporary relief, but they do not provide optimal pain relief. Typically, existing circumferential torso braces merely provide circumferential pressure to address back pain. For example, each of U.S. Pat. Nos. 6,213,968 B1 and 6,676,620 B2, respectively titled “Custom Fitted Orthotic Device” and “Modular Orthosis Closure System and Method” discloses a circumferential torso brace with a single pulley system that draws the brace inward toward the body in a manner that only provides basic circumferential compression, without focusing or localizing support in the lumbar area. They each have a piece that fits over the lumbar area, but none of these pieces has any connection to the workings of the brace as it is tightened other than simply being connected to the brace at the lumbar area.
U.S. Pat. No. 7,001,348 B1, titled “Double Pulley Body Brace”, discloses a circumferential torso brace with a single, one piece body panel and double pulley system, but likewise fails to provide focused or localized lumbar support or allow for lateral movement of its lumbar piece in either direction.
This disclosure is directed to a back orthosis that is easy to use and effectively reduces or eliminates back pain. In more particular embodiments, a back orthosis may be configured to provide an adjustable level of pressure to the spinal region of the lower back in a localized or focused manner. Adjustments may be made by an individual wearing the back orthosis, and while the individual is wearing the back orthosis. Such a back orthosis may be used under a variety of circumstances, including, but not limited to, addressing chronic conditions, addressing acute conditions, for pre-operative use and/or post-operative use persons, and can effectively be applied and adjusted by the wearer.
A back orthosis may include system components that broaden the brace's application such as enabling use of the back orthosis as a lumbo sacral orthosis (“LSO”), a thoracic lumbo sacral orthosis (“TLSO”) and/or an osteoarthritic (“OA”) orthosis.
The disclosure also includes an orthotic method that provides an easy and effective means to reduce or eliminate back pain.
The disclosure alternately or additionally includes an orthotic method—for chronic, acute, pre-operative, and/or post-operative persons—that enables effective application and adjustment by the wearer.
The disclosure alternately or additionally includes an orthotic method that implements system components that expand the usefulness of a brace, such as by enabling modification of the brace from an lumbo sacral orthosis (“LSO”) to a thoracic lumbo sacral orthosis (“TLSO”), an osteoarthritic (“OA”) brace, or both.
One aspect of the disclosure includes a back orthosis that includes a support, a lumbar compression piece and a pair of cinching systems. The support is configured to be positioned over at least a portion of a front side of a wearer's torso. In some embodiments, the support includes first and second, separate, opposing and mating attachment panels, which are configured to be operatively attached to one another to form a portion of a circumferential enclosure. Each attachment panel may include an outer edge with a portion that is configured to be positioned over a lateral portion of the back of the wearer's torso. The outer portion of each attachment panel is referred to herein as a “rear panel” and as a “rear anchor.”
The lumbar compression piece, which is also referred to herein as a “lumbar panel,” may form another portion of the circumferential enclosure, may be configured to apply a compressive force to a portion of an individual's back over which the lumbar compression piece resides. The lumbar compression piece is separate from the support and its position over an individual's back may be adjustable. In addition, the lumbar compression piece may be rigid. The lumbar compression piece may include opposite lateral sides.
Each cinching system includes one or more cords, as well as features of the attachment panels and the lumbar compression piece that the cord(s) interact with (e.g., eyelets or other features for receiving portions of the cords). In a specific embodiment, a first cord connects a first side of the lumbar compression piece along substantially its entire length to the first attachment panel, and a second cord connects a second side of the lumbar compression piece along substantially its entire length to the second attachment panel. The first cord may be pulled to draw the first side of the lumbar compression piece and the first attachment panel closer to one another, or loosened to space the first side of the lumbar compression piece and the first attachment panel further apart from one another. The second cord may be pulled to draw the second side of the lumbar compression piece and the second attachment panel closer to each other, or the second cord may be loosened to enable the second side of the lumbar compression piece and the second attachment panel to be spaced further apart from one another. As each cord is pulled, the brace circumferentially tightens and the cord provides a mechanical advantage that concentrates an inward compression of the lumbar compression piece, or panel, directly and especially upon a spinal region of the wearer's back. The extent of the mechanical advantage depends at least partially upon a number of apertures through which each cord passes.
In another aspect, pulling the first cord or the second cord causes relatively greater compression directly and especially upon a spinal region of a wearer's back than upon a region adjacent to the spinal region of a wearer's back.
In yet another aspect, the first set, the second set, or both first and second sets of apertures are formed by raised eyelets that are substantially parallel to the wearer's back surface when the lumbar compression piece is worn, and provide additional anchoring leverage actively to force the lumbar compression piece specifically at the spinal region and so inwardly compress the spinal region of the wearer's back while keeping the first cord and/or the second cord spaced away from the wearer's back at a region adjacent to the spinal region of the wearer's back.
In still another aspect, the first and second, separate, opposing and mating front attachment panels have anterior portions that have greater rigidity than lateral sides of the orthosis, which provides an opposing vice-like frontal force diametrically opposed to the concentrated inward compression of the separate, laterally adjustable, lumbar compression piece directly and especially upon a spinal region of a wearer's back.
In yet another aspect, the separate, laterally adjustable, lumbar compression piece has a raised, beveled inner surface that operatively abuts against the wearer's spinal region.
In still another aspect, the lumbar compression piece has a flat, curved, regular, irregular, or form-fitting inner compression surface and a generally flat, curved, regular, irregular, or form-fitting outer surface.
In yet another aspect, the lumbar compression piece has at least four slots on each of the first and second lateral sides by which the respective first and second cords engage the lumbar compression piece so causing the lumbar compression piece to contour to a shape of the wearer's back.
In yet another aspect, the back orthosis further comprises at least one tensioning handle with respect to which the first cord passes and with respect to which a portion of the first cord changes its relative position in accordance with variations in upper and lower first cord material lengths, relative to one another, each of which runs between the at least one tensioning handle and the first set of apertures.
In still another aspect, the first cord changes its position with respect to the tensioning handle at least in accordance with adjustable vertical and circumferential stationary tensioning handle attachment positions on the first or second, separate, opposing and mating front attachment panels, or first and second corresponding orthosis side portions.
In yet another aspect, the back orthosis further comprises a pad positioned between the wearer's back and the lumbar compression panel wherein foam within the pad flows.
In still another aspect, the lumbar compression piece comprises a horizontally and vertically centered reinforced center grid bordered by upper and lower hollowed out, beveled bowls, the bottoms of which push against the wearer's spinal region.
In yet another aspect, the first lateral side of the separate rigid lumbar compression piece is immediately adjacent to at least one vertically centered aperture, through which the first cord passes through a final aperture on the separate lumbar compression piece just before extending to a manually operated tensioning handle.
In still another aspect, the at least one vertically centered aperture is a pair of side-by-side apertures, through each of which one of two opposing lengths of the first cord passes.
In yet another aspect, the separate, laterally adjustable, lumbar compression piece includes a central vertical axis about which independent horizontally disposed extensions project.
In still another aspect, the independent, horizontally disposed extensions each correspond to at least one aperture of the first and second sets of apertures.
In yet another aspect, the independent, horizontally disposed extensions operatively flex in accordance with varying contours of lumbar and thoracic spinal regions that vary from individual-to-individual, with a finger-like horizontal and transverse motion when engaged in tension by the first and second cords.
Another aspect of the disclosure includes a back orthosis comprising a lumbar compression piece configured for self-adjustable positioning only at the rear of a wearer; twin opposing rigid panels, which are also referred to as “rear panels” and as “rear anchors,” for immobile placement upon opposing lateral sides of a spinal region of the wearer; a front abdominal piece, configured for immobile positioning upon an anterior side of the wearer; and at least two independent cinching systems, at least two of which are on opposing lateral sides of the lumbar compression piece, each cinching system providing a mechanical advantage for circumferential tightening of the orthosis and applying a relatively greater force than a circumferential force specifically to four points of the wearer's torso; wherein the lumbar compression piece and rear panels direct pressure radial to the wearer's spine; and wherein three of the four points are immobile while the forth point is laterally movable about a posterior lumbar side of the wearer, and the lumbar compression piece addresses the forth point of the wearer's torso.
In another aspect, the disclosure includes a back orthosis comprising first and second attachment panels and a lumbar compression piece that includes: opposing lateral sides, one such side connected along substantially its entire vertical length to the first attachment panel by a cord, and the other such side connected along substantially its entire vertical length to the second attachment panel by another cord or by an elastic piece; a first set of apertures through which the cord passes and is operatively pulled or allowed to retract, respectively either to draw the one such side laterally closer to the first attachment panel or to distance the one such side laterally further from the first attachment panel; wherein pulling of the cord causes the brace to circumferentially tighten and to concentrate compression of the lumbar compression piece directly and especially upon a spinal region of a wearer's back with the aid of a mechanical advantage, which may be dependent upon a number of apertures through which the cord or the another cord passes.
Another aspect of the disclosure includes an orthotic method comprising utilizing a back orthosis, comprising first and second attachment panels, which are operatively attached to one another to form a circumferential enclosure about a wearer; and a lumbar compression piece including: opposing first and second lateral sides, the first side connected along substantially its entire vertical length to the first attachment panel by a first cord, and the second side connected along substantially its entire vertical length to the second attachment panel by a second cord; a first set of apertures through which the first cord passes and is operatively pulled or allowed to loosen, respectively either: to draw the first side laterally closer to the first attachment panel, and the first attachment panel posteriorly closer to the first side, or to distance the first side laterally further from the first attachment panel, and the first attachment panel further from the first side; and a second set of apertures through which the second cord passes and is operatively pulled or allowed to loosen, respectively either: to draw the second side laterally closer to the second attachment panel, and the second attachment panel posteriorly closer to the second side, or to distance the second side laterally further from the second attachment panel, and the second attachment panel further from the second side; wherein pulling of the first cord and the second cord causes the brace both to circumferentially tighten and to concentrate inward compression of the lumbar compression piece directly and especially upon a spinal region of the wearer's back with the aid of a mechanical advantage, which may be dependent upon a number of apertures through which the first cord or the second cord passes.
In the accompanying drawings, which form a part of the specification and are to be read in conjunction therewith, and in which like reference numerals are used to indicate like parts in the various views:
a-d schematically depict how the angle at which the rear panels 33 and 35 are oriented affects the force applied by the lumbar panel 3;
a is a perspective assembly view of the embodiment of cinching system 8′ show in
b is a cutaway view showing the arrangement of the rollers 89′ and cords 9′ and 10′ relative to the adjacent sides of the lumbar panel 3′ and its corresponding side panels 33′ and 35′;
a is a rear view of a torso of a person wearing the back orthosis 1 of
b is a rear view of a torso of a person wearing the back orthosis 1 of
c is a rear view of a torso of a person wearing the back orthosis 1 of
a-c are respective side, top partial cut-away, and bottom views of a tensioning handle of the back orthosis 1 of
a and 9b are respective attachment and application sides of a foam lumbar pad;
a is plan view of an attachment side of a thoracic lumbo sacral attachment panel;
a-1 is a cut away side view of the clip tab 127 shown in
b is a plan view of an attachment side of another embodiment of a thoracic lumbo sacral attachment panel;
a is a plan view of the posterior side of one embodiment of a flexible multi-positional lumbar panel;
b is a perspective view of the lumbar panel of
As illustrated in the accompanying drawings and discussed in detail below, one aspect of this disclosure includes a back orthosis that, when used, provides high circumferential compression to the lower torso with a high level of mechanical advantage. The back orthosis of this aspect nevertheless also applies a continued, direct, adjustable amount of active support especially to the lower back, which can be finely tuned by lateral adjustment specifically to a particular area of pain.
In one embodiment, the back orthosis 1 is a lumbo sacral orthosis (“LSO”). Referring to
Lumbar panel 3 fits directly over the lumbar spinal region of a wearer's back, including the spine and the soft tissue surrounding it. When applied as described below, it acts as a posterior wall to the lumbar spine in such a way that when the below-described cinching system is drawn, lumbar panel 3 creates an inward force against the spine and soft tissue surrounding the spine. This helps to decompress the spine with the help of a continuous opposing force from at least one attachment panel 19 and 21, while lumbar panel 3 is free to laterally move side-to-side and about a wearer's spine in accordance with a particular spinal compression and pain relief for a given situation at a particular time.
Lumbar panel 3 is specifically shaped and configured to maximize its effectiveness to accomplish these and other ends. Inner side 51 of lumbar panel 3 is generally shaped as an inverted rectangular dish comprising upper and lower symmetrically oriented bowls 53 and 55. Upper and lower side walls 63 and 65 run towards the panel's center approximately from perimeter (approximately 1-inch wide) to lip 61 (which is at least approximately parallel to the wearer's back when worn and is rounded at its corners). Specifically, from respective horizontal sides 57 and 59, walls 63 and 65 form relatively obtuse angles (with respect to immediately adjacent portions of lip 61) when compared to the angles formed between right and left lateral walls 67 and 69. Thus, the walls 63 and 65 are gently sloped relative to the walls 67 and 69.
Dividing and reinforcing bowls 53 and 55 is a vertically and horizontally centered reinforcement section 71, specifically comprised of a hollow raised lattice work (defining approximately 48½ inch segments of a various assortment of full or truncated squares) that fills the space that occupies the dish volume otherwise defined by bowls 53 and 55. When compressed by application of back orthosis 1, lumbar panel 3 flexes along the vertical curvature of a wearer's spine, at which point this reinforcement section 71 provides added support and strength to lumbar panel 3. Section 71 also provides support and strength when lumbar panel 3 does not vertically flex. Posterior plate 73 adds further support.
The resulting lumbar panel 3, which is generally vertically elongated, provides dual, centrally and inwardly thrust projections each having vertically and laterally beveled interior sides, both (1) generally to decompress a spine in a direction normal and perpendicular to the plane generally created by a wearer's back, but (2) also about the axis of the spine from between about 0° to about 45° (or from about 0° to about 5°, 10°, 15° or 20°) angles with respect to a position parallel to such plane.
Lumbar panel 3, especially when used with the cinching systems described below, projects inwardly and thereby applies particularly enhanced (as relative to the circumferential intra-cavity pressure otherwise exerted about a wearer) inwardly focused, concentrated force towards a wearer's spinal region. As described below, this relatively greater force against the spinal region is continually radial to the spinal region even as lumbar panel 3 is positioned at laterally varied locations from side-to-side across a wearer's back, because of the specially adapted beveled walls 67 and 69 of bowls 53 and 55, and the various possible, separately adjustable, angular positions of lumbar panel 3 with respect to the plane parallel to a wearer's back.
This configuration is especially and surprisingly effective when lumbar panel 3 is integrated into the workings of two or more laterally opposing independent and immobile cinching systems, as described below.
In one embodiment, two or more independent cinching systems may be used with lumbar panel 3. The cinching systems may be configured to cinch laterally, vertically and/or diagonally.
Lumbar panel 3 is also configured to accept intermediate self-attaching comfort pads, e.g., warm or cold gel pads, used for heat or cold therapy—as discussed further below. For example, hook or loop-friendly fabric strips 44 allow such removable attachment.
Lumbar panel 3 is optionally also configured with slots 52 that receive TLSO or OA orthosis attachments for secured removable attachment and therapy, also discussed below, though another embodiment has no such slots.
Each right 5 and left 7 side attachment member comprises a back segment 15 (or 17), an attachment panel 19 (or 21), and a lateral segment 29 (or 31). Each back segment 15 and 17 contains and confines a rear panel 33 (or 35), which may be rigid (e.g., it may comprise a plastic, etc.) and may be sewn into its corresponding back segment 15 (or 17) to keep the rear panel 33 (or 35) from moving laterally, vertically, diagonally, or any combination thereof. Rear panels 33 and 35 are specifically bound by stitching in perimeter borders 43 and partitioning borders 45. This placement, which is immovable with respect to the rest of a respective attachment member 5 or 7, maintains proper anchor positioning of its corresponding back segment 15 and 17 with respect to a wearer's body. Attachment panels 19 and 21 include front panels 25 and 27, which may comprise rigid elements with perforations 30, and likewise contain and confine front panels 25 and 27 for the same reasons at stitched perimeter borders 43 and partitioning border 47. As shown in
Each rear panel 33, 35 provides an independent rear anchoring point at a location lateral to a wearer's spinal region. They are not configured to be positioned directly adjacent to the wearer's spinal region. Rather, they are configured to be positioned directly over either right or left lateral muscle groups, i.e., over two muscle groups in the low back, the transversospinalis and intertranversarri portions of the wearer's back. This positioning provides additional inward pressure in parallel opposition to the force applied by front panels 25 and 27. This positioning also prevents axial or rotational displacement of the back orthosis 1 about the wearer's body when worn. Combined with lumbar panel 3, they provide two symmetric points of a three point stabilizing system, as discussed further below. Rear panels 33 and 35 further provide a guide and anchor position for the cinching systems that include cords 9 and 10.
Lateral segments 29 and 31, which may comprise flexible elements, are configured to circumferentially wrap around a wearer's torso, and so provide a flexible yet durable connection between the back segments 15 and 17, and their corresponding attachment panels 19 and 21. Lateral segments 29 and 31, and the exteriors of back segments 15 and 17 and attachment panels 19 and 21, may be made from an external durable woven nylon formed as loop material laminated onto a polyester foam laminated onto a brushed nylon fabric. This protects the internal components, but any durable and strong relatively inelastic fabric may be used.
Monolithic, one-piece lumbar panel 3 (including eyelets 81) may be made entirely from injection molded nylon having a relatively firm hardness, but any rigid plastic material or similarly functioning material may be used, such as polyethylene, polyvinylchloride, or any other polymer or co-polymer resin. For example, treated natural wood, any foam injection resins (such as comprised of the polymers stated above), hard rubber, composites, metals, or many other materials may be used. In one embodiment, lumbar panel 3 is made from duPont ZYTEL® 66 nylon (as described in U.S. Pat. No. 6,756,429 herein incorporated by reference in its entirety) having a Shore D hardness of about 85, or from about 80 to about 90. Any material suitable for performing any or all of the functions stated herein may be used, however.
The lumbar panel 3 may be about ½ inch thick but, as described above, may vary in thickness across its unique shape, including at locations that include structural reinforcement. In its panel form, lumbar panel 3 may vary in general thickness from about % inch to about 2 or more inches, but of course carbon composite or high strength metal panels would allow for thinner or thicker panels to provide similar function.
Monolithic, one-piece rear panels 33 and 35 (including eyelets 83) may be made from injection molded nylon having a relatively firm hardness, but any rigid plastic material or similarly functioning material may be used, such as polyethylene, polyvinylchloride, or any other polymer or co-polymer resin. For example, treated natural wood, any foam injection resins (such as comprised of the polymers stated above), hard rubber, composites, metals, or many other materials may be used. In one embodiment, rear panels 33 and 35 are made from duPont ZYTEL® 66 nylon (as described in U.S. Pat. No. 6,756,429, the disclosure of which is, by this reference, hereby incorporated herein in its entirety) having a Shore D hardness of about 85, or from about 80 to about 90. Any material suitable for performing any or all of the functions stated herein may be used, however.
Front panels 25 and 27 may be made from ¼ inch injection molded polyethylene, but may be made from anywhere between about % and about ¾ inch. As hardness varies, so may the relative thickness of each front panel 25, 27, as long as it achieves some or all of the functions disclosed herein.
Nearly all of the components of back orthosis 1 may be symmetrical about a plane running through the vertical central axis of lumbar panel 3, except for an additional piece of hook-friendly fabric 41 used to attach right attachment member 5 over and onto left attachment member 7.
In an alternate embodiment, left attachment member 5 fits over right attachment member 7, however.
Outer sides 49 are covered in hook-friendly fabric, which mates with both loop-friendly fabric piece 41 on attachment panel 19 and loop-friendly material on the inner surfaces of right and left tensioning handles 11 and 13. Hook and loop fabric on any of the mating components may be reversed, or other suitable reversibly self-adjustable and attachable fabrics or fasteners may be used.
In another embodiment, attachment members 5 and 7 are identically equipped with various other types of attachment materials or devices suited for the adjustable attachment called for herein wherein attachment members 5 and 7 provide a rotationally and vertically immobile fit.
In any case, the various components of attachment members 5 and 7—in particular rear panels 33 and 35, and mating attachment panels 19 and 21—when attached as part of back orthosis 1, may be rotationally and vertically immobile with respect to the wearer's torso by virtue of the panel and fabric specifications noted above, and the relative placement and structural configuration described herein below.
Back orthosis 1 provides at least three fixation points in a three-point stabilizing system. Referring to
Thus, lumbar panel 3 alone, or when coupled with the right rear panel 33 and the left rear panel 35, provides posterior force parallel to a wearer's back. While lumbar panel 3 may be adjusted from side-to-side, rotationally and vertically immobilized rigid front panels 25 and 27 (
With such an arrangement, the amount of force applied by the lumbar panel 3 is defined at least partially by the angle at which the rear panels 33 and 35 are oriented relative to one another, which is referred to as an “attack angle.” As illustrated by
FR=[F12+F22−(2×F1×F2×cos(180°−(A+B))×½, (1)
where F1 is the amount of force applied along force vector F1, F2 is the amount of force applied along force vector F2, A is the measure of the angle between force vector F1 and the resultant force vector FR, and B is the measure of the angle between the resultant force vector FR and force vector F2. As illustrated by
Referring to
Referring to
A set of six raised eyelets 81 on each side of lumbar panel 3 and four raised eyelets 83 on each of rear panels 33 and 35 (only rear panel 33 is shown in
Thus, raised eyelets 81 and the bowl portions of lumbar panel 3 provide several unique advantages. Lumbar panel 3 is compressed against a spinal region as cords 9 and 10 are being tensioned and the pressure is coming from rear panels 33 and 35. At the same time, rear panels 33 and 35 are being pulled up away from the back as cords 9 and 10 are being tensioned, due to the raised portions of lumbar panel 3. The two offset one another so the pressure under the rear panels 33, 35 and lumbar panel 3 can be effectively the same. The effects on the underlying soft tissue can remain fairly constant under both areas.
In one embodiment eyelets 81 are replaced by simple holes having rounded and slick surfaces, or any other type of apertures through which cords 9 and 10 may pass to achieve a mechanical advantage.
In one embodiment, grooves 89 are angled from about 40° to about 70°, and in another embodiment grooves 89 are angled from about 45° to about 65°.
As such, lumbar panel 3 and rear panel 33 move and separately in accordance with the relative, and counteracting tightening and loosening of cords 9 and 10. This tightening, which may vary from the upper to the lower communicating portions of lumbar panel 3 and rear panel 33, will cause separately adjustable distancing along the entire vertical side of lumbar panel 3, as indicated by various directional movement arrows D, E, F, and G.
As illustrated by
Each eyelet 81′, 83′ may include a receptacle 81R′, 83R′ configured to receive a roller 89′ and a pin 90′. The pin 90′ serves as an axis about which the roller 89′ rotates. In the embodiment shown in
Cords 9′ and 10′ are laced through the eyelets 81′ and 83′. In the specific, but non-limiting embodiment depicted by
Although
The inclusion of rollers 89′ in eyelets 81′ and 83′ may minimize friction in the cinching system 8′ and increase the amount of force that may be achieved with the cinching system 8′. The arrangement of the rollers 89′ spreads that force out over the height of the cinching system (e.g., the distance between an uppermost roller 89′ on one side of the lumbar support 3′ and a lowermost roller 89′ on that side of the lumbar support 3′, etc.). By increasing the force that may be applied with the cinching system 8′, the amount of leverage that may be achieved with the cord(s) 9′, 10′ of a cinching system 8′ is also increased. This added leverage enables the back orthosis 1 to be used in a manner that causes the lumbar panel 3′ to apply an increased and optimal amount of localized or focused and/or directional force to a wearer's back (e.g., as much as fifty percent (50%) to sixty percent (60%) more force than may be applied when the cinching system depicted by and described in reference to
As shown, each roller 89′ may be configured as a pulley or spool. The divergent outward tapering from the center of a spindle to the rims at its ends facilitates retention of a cord 9′, 10′ that extends through each eyelet 81′, 83′ by the roller 89′ of that eyelet 81′, 83′. While the rollers 89′ shown in the drawings are shaped like pulleys or spools, other embodiments of rollers 89′ are also within the scope of this disclosure.
In the depicted embodiment, each roller 89′ and its corresponding pin 90′ may be positioned substantially parallel to its corresponding side 78′, 79′ of the lumbar panel 3′. Such an orientation will position the rollers 89′ and their corresponding pins 90′ substantially vertically when an individual wears the back orthosis 1, and substantially parallel to a pressure front applied by the lumbar panel 3′ to a wearer's back when the back orthosis 1 is used. Of course, other orientations of the rollers 89′ are also within the scope of the disclosed subject matter, including embodiments where rollers 89′ are oriented at angles that tailor the leverage at one or more locations between a rear panel 33′, 35′ and its corresponding side 78′, 79′ of the lumbar panel 3′, as well as orientations that minimize friction in adjusting the tension in the cords 9′ and 10′ and, thus, adjusting the relative locations of the rear panels 33′ and 35′ and the lumbar panel 3, as well as the amount of force applied by the lumbar panel 3′, the area to which force is applied by the lumbar panel 3′ and the direction in which the lumbar panel 3′ applies force to the back of a wearer. By orienting each roller 89′ vertically or in another suitable non-horizontal position, the cinching system 8′ will continue to function in the desired manner when the relative lateral position of one or both sets of rollers 89′ (i.e., those in eyelets 81′ and those in eyelets 83′) shifts (e.g., when tension is applied to either cord 9′, 10′, etc.). If rollers 89′ were oriented horizontally, any movement of one or more rollers 89′ out of plane from other rollers 89′ would detrimentally affect the manner in which the cinching system 8′ operates.
Referring to
Referring to
Free passage of each cord 9, 10 also in turn provides meaningful and repeatable vertical and circumferential attachment positioning along the entire area of attachment members 5 and 7. Thus, equally distributed tension makes a lower vertical attachment position correspond to a longer upper length of cord 9, 10, which tends to close the upper portion of the back orthosis 1 (
Plus, this equally distributed, and greater more comfortable leverage, does not require handling the cords themselves. Limiting handling to tensioning handles 11 and 13 thus improves cinching ability by enhancing comfort and leverage—for all users. Curved handles also contour about a torso so as to lay flat when attached to attachment members 5 or 7 (
In one embodiment, both ends of each cord 9, 10 retract within its corresponding tensioning handle 11, 13 by the installation of suitable twin spring-loaded cord retraction devices. Such an installation, though independently taking-in cord slack on both sides of a handle, will not necessarily offer all of the advantages of the above-mentioned device, however.
Referring to
Referring to
Referring to
Referring to
Referring to
In one embodiment, an orthoarthritic, thoracic fractures and thoracic surgeries attachment panel is similarly attached, in particular to afford posterior application of proximal ends of straps that run over a wearer's shoulders and/or around the armpit area for attachment at their distal ends upon the orthoarthritic, thoracic fractures and thoracic surgeries panel.
Referring to
A second aspect of the disclosure includes an orthotic method that includes any of the components and techniques substantially as described above. Other embodiments, techniques or devices can also or alternately be used in this method aspect.
While it is apparent that the illustrative embodiments of the subject matter disclosed herein fulfill the limitations of the appended claims, it is appreciated that numerous modifications and other embodiments may be devised by those skilled in the art. Additionally, feature(s) and/or element(s) from any embodiment may be used singly or in combination with other embodiment(s). Therefore, it will be understood that the appended claims are intended to cover all such modifications and embodiments that would come within the broader spirit and scope of the disclosed concepts.
This application is a continuation-in-part of U.S. patent application Ser. No. 12/629,013, filed on Dec. 1, 2009 and titled “BACK ORTHOSIS AND ORTHOTIC METHOD” (“the '013 Application”), which claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 61/119,368, filed on Dec. 2, 2008 and titled “BACK ORTHOSIS AND ORTHOTIC METHOD” (“the '368 Provisional Application”) and to U.S. Provisional Patent Application No. 61/119,022, filed on Dec. 1, 2008 and titled “BACK ORTHOSIS AND ORTHOTIC METHOD” (“the '022 Provisional Application”). The entire disclosures of the '022 Provisional Application, the '368 Provisional Application, and the '013 Application are, by this reference, incorporated herein.
Number | Date | Country | |
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61119368 | Dec 2008 | US | |
61119022 | Dec 2008 | US |
Number | Date | Country | |
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Parent | 12629013 | Dec 2009 | US |
Child | 13843939 | US |