EP3820414A1

EP3820414A1 - Back support belt

Info

Publication number: EP3820414A1
Application number: EP19736360.9A
Authority: EP
Inventors: Linda SCHIERMEISTER; Toni HOLTER; Hans B. Bauerfeind
Original assignee: Bauerfeind AG
Current assignee: Bauerfeind AG
Priority date: 2018-07-10
Filing date: 2019-07-02
Publication date: 2021-05-19
Also published as: CN112399839A; DE102018211431A1; KR20210016636A; JP2021524546A; WO2020011604A1; CA3105645C; CN112399839B; JP7478132B2; JP2022142794A; KR102308837B1; US20210177638A1; CA3105645A1

Abstract

The invention relates to a back support belt system, in particular a back orthosis or reclination orthosis for the treatment and prevention of back problems. The system comprises a pelvis strap and two independent left and right shoulder straps extending therefrom, those shoulder straps crossing each other in the back and ribcage region and being connected to the pelvis strap via tension straps, for simultaneously tensioning the pelvis strap and the shoulder straps.

Description

Back support

DESCRIPTION

The invention relates to a back support belt system, in particular a back orthosis or reclining orthosis for the treatment and prevention of back ailments. The system has a lap belt and two independent left and right shoulder straps, which intersect in the area of the back and chest, the shoulder straps being connected to the lap belt via tension straps for simultaneous tensioning of the lap belt and shoulder belts.

Back support belt systems are used to straighten the upper body, i.e. for the treatment and correction of postural errors and crooked spines, for example in the case of osteoporosis. Known back support belt systems and orthoses essentially consist of a lap belt, which can be closed under tension over the pelvis or hip of a patient, or generally a wearer, and which should then form a basis for the application of force to the back. Known systems also contain belts or support rails which start from the lap belt and which are intended to reposition or support the shoulders in spatial relation to the spine or the upper spine section in relation to the lower spine section by targeted force application. The interaction of these elements is intended to mechanically stabilize the wearer's spine and, above all, to straighten up the shoulder and upper thoracic spine. The harder the shoulder straps are tightened, the more the shoulders should be pulled back, which means that the upper body can be straightened. Back support belt systems are also intended to help reduce back strain when lifting and carrying loads, in particular to avoid excessive loads by specifically absorbing and distributing the forces generated in the area of the shoulders. Support straps are designed to direct the forces acting on the upper body, primarily via arms and shoulders, when lifting and carrying the loads directly into the pelvis or trunk. The spine should be bridged and relieved. In addition, a back support belt system should remind the wearer to adopt a harmful, stressful posture in the event of excessive posture of the upper body, and convey a feeling of security and stabilization. Back support belt systems are also intended to serve the health and safety of healthy people. At the same time, the back support straps should guide and limit the movement in a controlled manner in order to avoid bad postures that are unfavorable for the back when lifting or carrying the loads. This is useful in occupational safety, rehabilitation and certain sporting activities.

A disadvantage of known back support belt systems or back orthoses of this type is the complex structure, which makes it difficult for the wearer to wear them and why incorrect use can hardly be ruled out. The mostly rigid design of known bandages with support elements and belts helps to achieve a support effect, but an individual adaptation to the specific indication, the specific therapy requirement and / or the anatomical conditions of a wearer is not possible to a sufficient extent. Especially when the user is moving, in certain phases of movement, with special loads or already when the back support belt system is tensioned while putting on or afterwards, the support belt system slips unintentionally on the body (migration) into a position that on the one hand greatly affects the wearing comfort others can make the orthosis essentially ineffective. In particular, patients with restricted mobility find it difficult in practice to put on such belt systems and to generate the required tension on the support elements and the lap belt even after they have been put on. Likewise, it can be difficult to put on an orthosis that has already been set up for the purpose of sufficient support, that is to say preloaded, at all under this tension. Preloaded shoulder straps can get you Pull the lap belt, with which they are connected, unfavorably upwards, especially into the upper waist section, in the direction of the lower chest, so that a functional fit on the pelvis can no longer be achieved.

The invention was therefore based on the technical problem of improving such back support belt systems or back orthoses such as reclining orthoses, which are based at least on a basic structure containing a pelvic belt socket with force-introducing shoulder straps, so that it is easier to put on the wearer and also migration of the system, especially the pelvic frame, is effectively prevented already when putting on or during use, especially when the wearer is moving. This is said to improve the support and relief effect of such systems and also to be able to be maintained over the entire duration of wearing.

The technical problem is completely solved by the new back support belt or back orthosis construction according to the requirements. This back orthosis or back support belt system has at least the following elements: an at least sectionally stretchable lap belt for putting on around the pelvis of a wearer, with a lumbar / sacral positionable central section in the applied state and each laterally outgoing, left and ventrally pulling in the applied state right side section, according to the invention a right shoulder strap loop starting from this left side section of the lap belt alone to put it on over the right shoulder of the wearer, and a left shoulder belt loop according to the invention starting solely from this right side section of the lap belt to put it on over the left shoulder of the wearer. It is therefore envisaged that both ends of a shoulder belt loop should start on the opposite (contralateral) pelvic belt side, i.e. cross the trunk of the wearer, namely on the back (dorsal) as well as in the abdomen or chest area of the wearer. In particular, it is provided that the right shoulder belt loop and the left shoulder belt loop are in a central upper crossing point dorsal in the applied state, in a lower central crossing point dorsal in the applied state, and particularly also in cross two crossover points on each side, especially in the area of the chest or waist.

According to the invention, these two shoulder belt loops are each connected at their at least one end to the lap belt via a, preferably inelastic, tension band, which in each case runs in via at least one first deflecting element on the respective side section of the lap belt and is deflected there, so that it is attached to or even in the The pelvic belt runs along, gliding, to the respective pelvic belt end, that is to say with the orthosis in place, to the ventral section. The drawstring - and thus the associated shoulder belt loop - can be tensioned and, in particular, can be fixed there at the respective lap belt end.

In a first aspect of the invention, therefore, a back orthosis is provided, comprising: an expandable lap belt for application to the pelvis of a wearer, with a central section that can be positioned lumbar / sacral in the applied state and a left side section that goes off to the side with a left lap belt end and a right side section with a right side section Lap belt end, the lap belt ends being connectable to each other under tension for application; a right shoulder strap loop for application over the right shoulder of the wearer, which is connected via both its first end and its second end alone, that is to say exclusively, to the left side section of the lap belt; a left shoulder strap loop for application over the left shoulder of the wearer, which is connected to both the first side and the second end thereof only to the right side portion of the lap belt; wherein the right and left shoulder strap loops are each connected at least at their respective first ends to the lap belt via a first tension band, and wherein the first tension band of the right shoulder strap loop runs in and slides on via at least a first left deflection element which is arranged on the left side section or runs in the lap belt towards a lap belt end and can be tensioned and fixed there, and the first tension band of the left shoulder belt loop runs in via at least a first right deflection element, which is arranged on the right side section, and slides along or in the lap belt to one The lap belt end runs there and can be tensioned and fixed there. In a first embodiment it is provided that the first tension band of the right shoulder belt loop runs in via at least a first left deflection element which is arranged on the left side section, crosses the middle section and slides along or in the right side section of the lap belt to the right lap belt end and the first tension band of the left shoulder belt loop runs in via at least a first right deflection element which is arranged on the right side section, crosses the middle section and slides along or in the left side section of the lap belt towards the left lap belt end.

In a further alternative embodiment, it is provided that the first drawstring of the right shoulder strap loop runs in via the at least one first left deflection element which is arranged on the left side section and from the first left deflection element in the direction of the center section to at least one arranged on the center section The second left deflection element runs and runs from there along the left side section to the left lap belt end, and the first tension band of the left shoulder belt loop runs in via the at least one first right deflection element, which is arranged on the right side section, and from the at least one first right Deflection element runs in the direction of the center section to at least one second right deflection element arranged on the center section and runs from there along the right side section to the right lap belt end.

According to the invention, “tension band” primarily means an essentially inelastic, that is to say tensile, flexible band in the form of a woven belt. Functionally equivalent designs such as chain or link belts, belts made of solid material made of flexible polymers and metal belts are also covered. Alternatively, this also includes tensioning ropes or tensioning cords, individually or in a combination of parallel or intertwined cords. It is particularly provided that the Tension straps, especially in comparison to the shoulder straps, are not stretchable, that is to say essentially inelastic and tensile.

According to the invention, “deflecting element” is primarily understood to mean an eyelet or ring for the passage of a band or rope, but also a mounted roller or a roller block. A slip-inhibiting or a slip-improving coating can be provided, depending on the focus of application and the specific tension band guide, see below.

In the present case, a “carrier” is understood to mean a person who, for example as part of occupational safety measures, puts on and uses the belt system according to the invention, that is to say wears it, in order to prevent excessive strain or incorrect posture when working, particularly when carrying loads. It is also understood to mean a patient who, for example in the context of therapeutic measures, puts on and uses the belt system according to the invention, i.e. wears it, in order to counteract excessive stress or malposition of a previously damaged, diseased musculoskeletal system or targeted movement control in the sense of therapy for the diseased musculoskeletal system enable.

The drawstrings are designed according to the invention on or in the lap belt along its longitudinal extension so that the shoulder belt loops, that is mediated via these drawstrings, can be tensioned when the lap belt is stretched, in particular while the orthosis is being attached to the wearer or afterwards. It is particularly provided that the shoulder belt loops can be tensioned separately on the lap belt in each case via the drawstrings.

It is also provided that by tensioning the shoulder straps on the lap belt, that is to say the tension bands connected to the shoulder belt loops, in particular while the orthosis is being applied to the wearer or afterwards, the lap belt itself is also tensioned, that is to say can also be tensioned further.

According to the first embodiments, the lap belt is advantageously tensioned together with the tensioning of the shoulder belt, since the two on the side and in the middle Move deflection points towards each other due to the tension on the drawstring. In the second version, the lap belt and shoulder belt can be tensioned separately. This is particularly possible for older patients with restricted mobility. In particular, since the ends of the tension straps of the shoulder straps can be fixed directly to the lap belt ends, for example by means of Velcro fasteners, and / or can be tensioned there by means of separate tensioning devices on the side sections, it is also quick and easy to wear while wearing the back support belt system according to the invention Adjustment of the shoulder belt tension possible.

If the lap belt is put on under tension around the pelvis or waist of the wearer by closing the two lap belt ends, particularly in the region of the wearer's belly, according to this aspect of the invention, the lap belt can be tightened further or more tightly by running the along the lap belt according to the invention Tension bands of the shoulder strap loops are subjected to tension in order to tension the shoulder straps. It shows that the tension of the lap belt can increase proportionally to the increase in the shoulder belt tension, which results in a better fit and better hold of the lap belt. This prevents undesired migration of the lap belt when the shoulder straps are tensioned.

For this purpose, it is particularly provided that the drawstrings each have free drawstring ends that can be fixed directly to the respective lap belt ends for tensioning. This can be achieved in a manner known per se via releasable connecting elements. Preference is given to hooks and eyes or, alternatively or additionally, via Velcro hooks, in particular on the side of the free drawstring ends, and Velcro counterparts, in particular velor, in particular on the side of the pelvis. A position-variable positionability of the ends of the drawstring on or on the lap belt ends is preferred in order to make the tension and direction of the pull individually adaptable. This is achieved in particular by large areas formed on the lap belt ends with Velcro fastener counter-elements or by a plurality of ones arranged at a distance from one another. The invention thus allows, in particular, a practically two-stage tensioning when putting on or using the orthosis: after the pelvic belt ends have been closed, possibly under initial tension, the pelvic belt can be tensioned further in a first tensioning process via the free tension band ends; In this first step, the introduction of the train preferably leads to a tension that runs radially around the waist or pelvis of the wearer and thus applies the lap belt better and more firmly. In a second stage of the tensioning process, the two shoulder strap loops can be re-tensioned via the two other laterally lying free tension band ends. Both tensioning processes can be felt in one tensioning step simultaneously or in several, particularly depending on the specific arrangement and guidance of the tension bands and the deflection elements on the lap belt as well as on the static and sliding friction conditions of the fixed or moving belts on the deflection elements and along the lap belt Different tensioning steps can be carried out separately using force and / or tensioning effect on the pelvic and shoulder straps.

Due to the dynamic force distribution of the shoulder straps on the lap belt, which is made possible in particular due to the sliding tension straps of the shoulder straps, the tension force can advantageously be distributed dynamically in the back orthosis depending on the movement state of the wearer, without causing local tension and thus one unwanted migration of the back orthosis comes. In particular, the arrangement according to the invention allows the tensioning force which holds the lap belt by static friction on the pelvis or pelvic crest of the wearer to be in an appropriate and always adjusted relationship with the tensioning force of the shoulder straps, as a result of which excessive pulling of the shoulder straps, which increases the holding force of the lap belt (static friction ) could be effectively avoided. This prevents unwanted migration of the lap belt and thus the back orthosis.

It is advantageously also possible that when the elastic lap belt is stretched to tension and close the two side sections when placed on the carrier, as a result of which the tension belts running along the lap belt, particularly between the respective side section and the central lap belt section, particularly in the form of tension belts and / or pull ropes or pull cords, included tensioned on both sides at the same time, so that automatically when the lap belt is put on and the two belt ends are pulled together, the shoulder belts are also tensioned in relation to the lap belt, which easily generates the necessary tension, in particular the force required to recline the shoulders allows.

Each tension band is guided on or in the lap belt for itself between at least one central deflection element in the region of the dorsal central section of the lap belt and at least one lateral deflection element, each of which is arranged in the lateral area further from the (ventral) area of the respective side sections. For the dynamic tensile force distribution in the orthosis according to the invention, the course and arrangement of the tension bands on the lap belt are particularly important for the desired function of the belt system in the orthosis. This can be selected depending on the application, the therapy goal or the requirements of the wearer. On the one hand, the shoulder straps have a particularly relieving effect, for example when used in the area of occupational safety, and on the other hand, an effective and easy-to-apply reclining orthosis is desired for movement-restricted osteoporosis patients. The present invention therefore comprises several variants and designs of the tension belt guides.

In a first variant, the tension band, which comes from the dorsal first end of the right shoulder belt loop, runs from a first left deflection element positioned to the left of the center section along the left side section towards the left lap belt end and the tension band, which runs from the dorsal first end of the the left shoulder belt loop comes from a first right deflection element positioned on the right of the center section along the right side section towards the right lap belt end. This means that the incoming drawstring of the opposite shoulder belt loop is led directly to the front (ventral) solely via a lateral deflection element.

In another variant, this tension band, coming from the dorsal first end of the right shoulder belt loop, continues from one of the central section spaced apart first left deflection element along the left side section in the direction of the center section to a second left deflection element spaced closer to the center section and from there along the left side section towards the left lap belt end and the tension band, coming from the dorsal first end of the left shoulder belt loop, runs from a first right deflection element further spaced from the center section along the right side section in the direction of the center section to a second right deflection element spaced closer to the center section and from there along the right side section to the left lap belt end.

This means that each tension band is guided between the at least one central deflection element and the at least one lateral deflection element. In a first variant, the tension band running in from the shoulder belt loop of the opposite half of the body is directed at the lateral deflecting element in the direction of the central portion of the lap belt and there onto the central deflecting element. From the central deflection element, the tension band is guided forward (ventrally) on the same side of the lap belt. In another variant, the incoming drawstring is guided back and forth several times in alternating directions on several lateral deflecting elements and at least one central deflecting element, in particular in the manner of a waist, the deflecting elements forming the blocks and the drawstring each forming the runner.

The location of the introduction of the tension straps of the shoulder straps is in the rear / dorsal area of the lap belt with the lap belt attached, but always between the central section and the aforementioned lateral section. The deflection elements are guided on or in the region of stretchable (elastic) sections of the lap belt so that an active change in the length of the lap belt due to tension or tension leads to tension or tension on the tension belt and the effective length of the belt is shortened. In a particularly preferred embodiment, the tension band is in each case returned from a lateral lap belt section to a more centrally located lap belt section and from there again in the direction of the lateral lap section. Through this "Z" -shaped deflection of the drawstrings is like a single or multiple pulley achieves a force / length ratio. By simply pulling on the shoulder belt, for example when bending, the tension on the lap belt is increased twice or more. Conversely, the pull on the lap belt leads to a two to multiple effective shortening of the shoulder belt when put on. The latter is particularly advantageous for putting on the back belt system according to the invention, since in particular the shoulder straps can first be put on loosely and then shortened appropriately to a large extent by tensioning when putting on the lap belt in order to achieve the intended support function.

In preferred embodiments, it is additionally provided that the first, external starting point of the shoulder belt end is positioned in the area of the pelvic crest, preferably exactly on the pelvic crest (crista ilia), when the lap belt is in place. It is thereby advantageously achieved that the second end of the respective shoulder belt loop, which attaches there to the lap belt, that is to say in the anatomical frontal plane of the body of the wearer or user, does not experience any significant change in length when moving, particularly when the back is flexed. In conjunction with the specific course of the shoulder straps on the body according to the invention, a “neutral point” is thus achieved, which prevents undesired additional transverse forces, which could additionally cause the pelvic belt to migrate, during movement. The front introduction point of the tensile force of the respective shoulder belt loop in the lap belt is therefore preferably in the anatomical frontal plane. As a result, the belt system retains its tension even when flexed.

In a first variant thereof, the second end of the right and left shoulder strap loops is connected to the respective side sections at left and right side anchorages, respectively, with the left and right side anchorages in the attached state of the lap belt respectively on or in the area of the left and right Iliac crest of the wearer are localized. These second ends of the shoulder belt loops can each be connected to these anchorages either directly or indirectly via, in particular, length-adjustable, fixed drawstrings. Such drawstrings can be done in a manner known per se as anchors serving eyelets and be jammed with himself in a buckle for the purpose of length adjustment.

In another variant thereof, the second end of the right and left shoulder belt loops is connected to the lap belt in each case via a second tension band, the second tension band of the right shoulder belt loop sliding over at least one left lateral deflection element or along the left side section to the left lap belt end runs and the second tension band of the left shoulder belt loop slides over at least one right lateral deflection element on or in the left side section along to the left lap belt end and the left and right lateral deflection elements in the attached state of the lap belt respectively on or in the area of the left and right iliac crest of the wearer are located.

In preferred embodiments of the invention, at least one end of the shoulder belt loop, which forms the transition between the shoulder belt and the associated tension band, is designed as a particularly elastic belt section.

According to the invention, “elastic belt section” is primarily understood to mean an elastic, that is to say stretchable, elastic band, particularly in the form of a woven belt. Functionally equivalent designs, in particular elastomer tapes, preferably made of rubber, silicone rubber, polyurethane and the like, are thus also covered. As an alternative, this also includes elastic tension cables with inserts made of elastomer fibers. It is envisaged that these elastic belt sections, particularly in comparison to the other sections of the shoulder belt loops, are more elastic, that is to say they can be stretched further under tensile stress. In a preferred variant, these elastic belt sections are in each case the only components of the shoulder straps which are stretched, that is to say lengthened, under the tensile forces which can occur when the orthosis is used properly, especially when the back is flexed. The elastic belt section preferably has a force-elongation range with an elongation of + 60% from 7 N to 55 N, in particular from 20 N to 40 N. This elastic belt section is preferably arranged in each case at that end of the shoulder belt loop which pulls up over the rear upper back to the shoulders. Since the change in length when bending the back is particularly pronounced in this area of the body in particular, the particularly elastic belt section arranged there can reduce excessive tension in the belts, that is to say, in particular, can compensate for it by bending when bending the back. Because of its elasticity, the elastic belt section serves, on the one hand, to limit the tensile force of the pull initiated by the shoulder belts in the lap belt, which prevents the lap belt from migrating. On the other hand, it also compensates for the change in length of the back when bending, which keeps the shoulder straps in position on the shoulder, gives freedom of movement and increases the comfort and effectiveness of the back strap system.

In a variant of this, this elastic end section is additionally provided with a mechanical extension limiter which is formed separately and runs parallel to the elastic section. The stretch limit can be designed as at least one less elastic or inelastic band, which is connected to the ends of the elastic section. Depending on the desired therapeutic goal or application of the system, this can be used for controlled movement control during flexion. In particular, excessive back flexion should be prevented, which may be indicated therapeutically, for example in postoperative rehabilitation or in the area of occupational safety when lifting loads for reclination and posture improvement and the resulting improvement in load transfer in the back.

In a further embodiment, the support belt system according to the invention is guided in separate cross guides at least at the crossing points of the shoulder belt loops. This serves in particular to simplify the fitting of the back orthosis to the wearer or user, since the cross guides hold the intersecting shoulder straps in the correct positions. At least one such cross guide is preferably provided in the upper central intersection point on the back. The back support belt system according to the invention makes it possible to remind the wearer to adopt a more gentle posture in the event of an incorrect posture of the upper body, which means in particular: trunk strongly bent forward and, in the worst case, additional rotation of the back in the bent position, that is to say: an upright posture. When lifting loads with a curved spine, the load is shifted to the front part of the ventral pillar of the vertebral body, by straightening the spine and lifting it from the knees (upright posture), the load is advantageously distributed over the entire area of the ventral pillar. The upright posture can be assumed by the wearer especially when he experiences a stronger pull over the shoulder strap system according to the invention when the upper body is bent forward. The lap belt serves as an "anchor" and defines the central fixed point, which is used to generate a force on the shoulders from the movement in the dorsal direction via the belt system. Another side effect of the tightly fitting, tensioned lap belt of the back support belt system according to the invention is to impart a feeling of security and stabilization to the wearer of the system.

In a special embodiment, the back support belt system according to the invention is therefore upgraded to an elastic vest or jacket, the shoulder straps and / or the lap belt being fixed at least in sections to the vest or jacket. The invention therefore also relates to protective work clothing, in particular in the form of a vest or jacket, containing an elastic vest or jacket and the back support belt system according to the invention described herein

In the simplest case, the back support belt system is sewn onto the vest or jacket. In an alternative variant, the support straps on the vest or jacket are guided in tabs. Training on a vest or jacket makes it easier to put on and take off, which is very useful with everything for short-term and recurrent use of the back support belt system, for example in the area of occupational safety. The vest or jacket used is made of elastic fabric or knitted fabric. Alternatively, flexible vests, such as are known per se as safety vests, can be upgraded with the back support belt system according to the invention. Finally, the subject of the invention is also the use of the back orthosis according to the invention or the protective work clothing according to the invention for protection against adverse loads on the back.

The invention is illustrated in more detail by the following specific exemplary embodiments, without these being to be understood as restrictive.

FIG. 1 shows a perspective front view of a first embodiment of the back orthosis according to the invention. A left shoulder strap 24, which can be put on over the left shoulder, and a right shoulder strap 22, which can be put on over the right shoulder, is fastened to the right side section 34 of the lap belt 30 on a lap belt 30 with a rear center section 31. The dorsal end 25 of the left shoulder strap loop 24 which is in the attached state is connected to an essentially inelastic tension band 54 via an elastic belt section 80. The tension band 54 runs in via a right deflection element 64 designed in this embodiment as an eyelet, ring or simple buckle to the right of the central section 31 on the lap belt 30 and, crossing the central section 31, is guided past the left side section 32 of the lap belt 30 to the front where it ends in a free end 55. The free end 55 of the tension band 54 can be fixed on the left lap belt end 32. Correspondingly symmetrically to this, the rear end 23 of the right shoulder belt loop 22 runs via an elastic belt section 80 into a tension band 52, which runs into a corresponding left deflection element 62 in the lap belt 30, also crosses the middle section 31 and along the right side section 34 into a free one Expires at the end of 55. The free end 55 of the tension band 52 can be fixed on the right lap belt end 35. The respective other ends 26, 27 of the shoulder belt loops 22, 24 are in the illustrated embodiment firmly connected to a region of the side sections 32, 34 which is further to the side, ie further away from the central section 31. For this purpose, the second end 26 of the right shoulder belt loop 22 is firmly connected to the left side section 32 of the lap belt 30 at a left anchorage 72. This left anchor 72 is positioned in a region of the left side portion 32 which, when the orthosis is applied to the wearer, on or above the left Pelvic crest of the wearer lies. Likewise, the second end 27 of the left shoulder strap loop is firmly connected to the right side section 34 of the lap belt 30 via a right anchor 74. Likewise, this right anchor 74 is positioned in an area of the right side portion 34 which, when the orthosis is applied to the wearer, lies on or above the right iliac crest of the wearer. Due to the inventive positioning of the fastenings of the ends 23, 25, 26, 27 of the shoulder belt loops 22, 24 on the lap belt 30 on the opposite side of the body, the shoulder belt loops intersect at four crossing points: a rear central upper crossing point 41 and a rear central lower crossing point 43 as well as in a left lateral crossing point 42 and a right lateral crossing point 44. Additional, in particular partially elastic and / or padded shoulder straps are optionally available on the upper sections of the shoulder straps, which run in the region of the clavicle and shoulder blade when the orthosis is attached to the wearer 28 trained.

Figure 2 shows another embodiment of the back orthosis according to the invention in the open state in a perspective rear view. In a departure from the components corresponding to the features shown in FIG. 1, the embodiment according to FIG. 2 has, in addition to otherwise corresponding components, an alternative tension band guide: the tension bands 52, 54 of the right and left shoulder belt loops 24, 22 run in the lap belt 30 in the first left and right side Deflection elements 62 and 64. From there they are first deflected in the direction of the central section 31 and run there in the middle, that is to say closer to the central section 31, of second left and right deflection elements 63, 65. There, the drawstrings 52 and 54 are deflected and then pull in the direction of the left and right lap belt end 33, 35. In addition to the embodiment of FIG. 1, the shoulder belt loops 22 and 24 are also used in the embodiment according to FIG. 2 for fastening the second end 26, 27 at the anchoring points 72 and 74 adjustable second tension straps 56, 57 are provided, each of which is clamped to itself in buckles 58 in order to achieve a catch adjustment of the shoulder straps. FIG. 3 shows the back orthosis according to FIG. 2 in a rear view in a form applied to a carrier. In addition, it is shown that the first deflection elements 62, 64 are arranged on a stiffening element 36 in the region of the elastic lap belt 30 and are in particular directly connected to them. Likewise, the central section 31 of the lap belt 30 can be seen here as a stiffening element, on which the second deflection elements 63, 65 are arranged and are in particular directly connected to them.

FIG. 4 shows the embodiment according to FIG. 1 in the state in which it is applied to the carrier in a perspective front view. The reference numerals apply accordingly.

FIGS. 5A and 5B each show alternative variants of the embodiment according to FIG. 2 or 3, the first deflection elements 62, 64 being able to be fixed or fixed at variable positions on the stiffening elements 36 and the second deflecting elements 63, 65 on the central section 31 of the lap belt designed as a stiffening element are, whereby the arrangement of the respective tension bands 52, 54 guided in these deflection elements on the lap belt 30 is alternatively designed. FIG. 5A shows a first arrangement of the first deflection elements 62 and 64 on the upper edge of the lap belt 30 and that of the second deflection elements 63, 65 in the middle at the central section 31. FIG. 5B shows an alternative arrangement of the first deflection elements 62, 64 in the middle region of the lap belt 30 and that of the second deflection elements 63, 65 in the lower region of the middle section 31.

FIG. 6 shows a further alternative embodiment of the back orthosis in a frontal view analogous to that shown in FIG. 1. In contrast to the embodiments according to FIG. 1 and equally to the alternative embodiment according to FIG. 2, the variant of these embodiments shown here additionally provides that the free second ends 26 and 27 of the two shoulder belt loops 22, 24 each have left and right lateral deflection elements 66 , 67 and there in, the second end 26 of the right shoulder strap loop 22 ending in a second tension band 56 and the second end 27 of the left shoulder strap loop 24 ending in a second tension band 57. These are each on their free tension belt ends 55 on the left and right Lap belt ends 33, 35 can be fixed. In this embodiment, both ends 23, 25, 26, 27 of the respective shoulder strap loops can each be tensioned separately via individually assigned tension bands 52, 54, 56, 57.

FIG. 7 shows a further embodiment of the back orthosis according to the invention according to FIG. 1 in a representation analogous to the representation in FIG. 2. Identical reference symbols denote identical or functionally identical elements.

FIG. 8 shows a further embodiment of the invention as protective work clothing: a back support belt system analogous to the embodiment according to FIG. 2 is upgraded to an elastic vest 90. The right and left shoulder belt loops 22, 24 and pelvic belt 30 are at least partially firmly connected to the vest 90. The

Back orthosis can be put on directly and immediately together with vest 90.

REFERENCE SIGN LIST right shoulder strap loop (22)

the right shoulder strap loop first end (23) left shoulder strap loop (24)

the left shoulder strap loop first end (25) the right shoulder strap loop second end (26) the left shoulder strap loop second end (27)

Shoulder strap (28)

Lap belt (30)

Center section (31)

left side section (32)

left lap belt end (33)

right side section (34)

right lap belt end (35)

Stiffening element (36)

middle upper crossing point (41)

left crossing point (42)

lower center crossing point (43)

right crossing point (44)

the right shoulder strap loop first drawstring (52) the left shoulder strap loop first drawstring (54) the right shoulder strap loop second drawstring (56) the left shoulder strap loop second drawstring (57)

Buckle (58)

first left deflection element (62)

second left deflection element (63)

first right deflection element (64)

second right deflection element (65)

left side deflection element (66)

right side deflection element (67) left anchorage (72) right anchorage (74) elastic belt section (80) jacket (90)

Claims

EXPECTATIONS

1. back orthosis containing:

- A stretchable lap belt (30) for placing on the pelvis of a wearer, with a lumbar / sacral positionable middle section (31) in the applied state and left side section (32) with lateral left lap belt end (33) and right side section (34), each extending laterally therefrom with the right lap belt end (35), the lap belt ends (33, 35) being connectable to one another under tension,

a right shoulder strap loop (22) for putting on over the right shoulder of the wearer, which is connected via its first end (23) and its second end (26) only to the left side section (32) of the lap belt (30), and

- A left shoulder belt loop (24) for putting on the left shoulder of the wearer, which is connected via its first end (25) and its second end (27) alone to the right side portion (34) of the lap belt (30), right and the left shoulder belt loop (22, 24) are each connected at least at their first ends (23, 25) to the lap belt (30) via a first tension band (52, 54), and the first tension band (52) of the right shoulder belt loop (22 ) via at least one first left deflection element (62), which is arranged on the left side section (32), runs in and slides along or in the lap belt (30) to a lap belt end (33, 35) and can be tensioned and fixed there and wherein the first tension band (54) of the left shoulder belt loop (24) runs in via at least one first right deflection element (64) which is arranged on the right side section (34) and slides along or in the lap belt (30) to form a lap belt end (33,35) runs there and can be tensioned and fixed there.

2. back orthosis according to claim 1, wherein the first tension band (52) of the right shoulder strap loop (22) via a first left deflection element (62), which is arranged on the left side section (32), enters, crosses the center section (31) and slidably along or in the right side section (34) of the lap belt (30) to the right lap belt end (35) and wherein the first tension band (54) of the left shoulder belt loop (24) via a first right deflection element (64), the is arranged on the right side section (34), runs in, crosses the middle section (31) and slides along or in the left side section (32) of the lap belt (30) along to the left lap belt end (33).

3. The back orthosis according to claim 1, wherein the first tension band (52) of the right shoulder strap loop (22) runs in via a first left deflection element (62), which is arranged on the left side section (32), and from the first left deflection element (62). runs in the direction of the center section (31) to a second left deflection element (63) arranged on the center section (31) and from there along the left side section (32) to the left lap belt end (33) and the first tension band (54 ) of the left shoulder belt loop (24) via a first right deflection element (64), which is arranged on the right side section (34), runs in and from the first right deflection element (64) in the direction of the center section (31) to one on the center section ( 31) arranged second right deflection element (65) and runs from there along the right side section (32) to the right lap belt end (33).

4. Back orthosis according to one of the preceding claims, wherein the right shoulder belt loop (22) and left shoulder belt loop (24) in a dorsal central cross point (41) in the applied state, a central lower cross point dorsal in the applied state and in two cross the crossover points (42,44).

5. back orthosis according to any one of the preceding claims, wherein the drawstrings (52, 54) each have a free drawstring end (55) which can be fixed directly to the respective lap belt ends (33, 35) for tensioning the drawstrings (52, 54).

6. back orthosis according to one of the preceding claims, wherein the

Shoulder belt loops (22, 24) over the tension bands (52, 54), which run on the side sections (32, 34) and are fixed at the respective lap belt end (33, 35), over the stretching of the lap belt (30) when the back orthosis is put on and closing the lap belt (30) can be tensioned.

7. back orthosis according to one of the preceding claims, wherein the

Shoulder belt loops (22, 24) when the back orthosis is in the closed state and the lap belt (30) is closed, each can be tensioned separately via the drawstrings (52, 54) and secured to the respective lap belt end (33, 35).

8. back orthosis according to one of the preceding claims, wherein the closed lap belt (30) in the applied state of the back orthosis on the drawstrings (52, 54) of the shoulder belt loops (22, 24) can be further tensioned.

9. Back orthosis according to one of the preceding claims, wherein the second end (26, 27) of the shoulder belt loops (22, 24) is connected at left and right side anchors (72, 74) to the respective left and right side sections (32, 34) and the left and right lateral anchors (72, 74) in the applied state of the lap belt (30) are each located on or in the area of the left and right iliac crest (crista iliaca) of the wearer.

10. Back orthosis according to one of the preceding claims, wherein at least one deflecting element (62, 64, 63, 65, 66, 67) is formed separately and can be coupled to the lap belt (30) in a variable manner.

11. The back orthosis according to one of the preceding claims, wherein an elastic belt section (80) is formed between the one end of the shoulder belt loop (22, 24) and the tension band (52, 54), the elasticity of which is higher than that of the shoulder belt loops (22, 24) yourself.

12. The back orthosis according to claim 11, wherein in each case an additional elongation limitation in the form of at least one parallel, less elastic or inelastic band section is formed on the elastic belt section (82, 84).

13. Protective work clothing, comprising a stretchable vest or jacket (90) and a back support belt system characterized in one of the preceding claims, wherein

Shoulder belt loops (22, 24) and lap belt (30) are at least partially upgraded to a vest or jacket (90) and are firmly connected to the latter.

14. Use of the back orthosis according to one of claims 1 to 12 or the protective work clothing according to claim 13 for protection against adverse loads on the back.