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WO2013060388A1 - Dispositif d'exercice contre les douleurs du bas du dos - Google Patents

Dispositif d'exercice contre les douleurs du bas du dos Download PDF

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Publication number
WO2013060388A1
WO2013060388A1 PCT/EP2011/069028 EP2011069028W WO2013060388A1 WO 2013060388 A1 WO2013060388 A1 WO 2013060388A1 EP 2011069028 W EP2011069028 W EP 2011069028W WO 2013060388 A1 WO2013060388 A1 WO 2013060388A1
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WO
WIPO (PCT)
Prior art keywords
user
central part
stress
lbff
string
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2011/069028
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English (en)
Inventor
Dirk BRUYLAND
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Individual
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Individual
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Filing date
Publication date
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Priority to PCT/EP2011/069028 priority Critical patent/WO2013060388A1/fr
Publication of WO2013060388A1 publication Critical patent/WO2013060388A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/02—Exercising apparatus specially adapted for particular parts of the body for the abdomen, the spinal column or the torso muscles related to shoulders (e.g. chest muscles)
    • A63B23/0244—Exercising apparatus specially adapted for particular parts of the body for the abdomen, the spinal column or the torso muscles related to shoulders (e.g. chest muscles) with signalling or indicating means, e.g. of incorrect posture, for deep-breathing exercises
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/40—Interfaces with the user related to strength training; Details thereof
    • A63B21/4001—Arrangements for attaching the exercising apparatus to the user's body, e.g. belts, shoes or gloves specially adapted therefor
    • A63B21/4003—Arrangements for attaching the exercising apparatus to the user's body, e.g. belts, shoes or gloves specially adapted therefor to the head; to the neck
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/40—Interfaces with the user related to strength training; Details thereof
    • A63B21/4001—Arrangements for attaching the exercising apparatus to the user's body, e.g. belts, shoes or gloves specially adapted therefor
    • A63B21/4011—Arrangements for attaching the exercising apparatus to the user's body, e.g. belts, shoes or gloves specially adapted therefor to the lower limbs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B2071/0602—Non-electronic means therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B2071/0655—Tactile feedback

Definitions

  • LBFF Lower Back Forward Flexing
  • the movements made in daily life consist of various combinations of above movements whereby several of the above specific types are more or less expressed. For example, when kneeling to grab something before you, many of the above types of movement will be involved. The content of a daily life movement very much depends on the individual as well: Some people will naturally express more thoracic flexing others more LBFF flexing when bending forward to pick something up.
  • LBFF is the specific spinal movement whereby the vertebrae elements sacrumSl, belonging to the pelvis, and lumbar vertebrae L1,L2,L3,L4,L5 rotate and shift with respect to each other, and rotate on themselves and thereby evolve into a more aligned state, when a forward flexing is performed from a normal standing position.
  • the back sway can be identified in the normal standing side view (sagittarian plane) position as the hollow area formed by the Body Back Sway Curve/Contour (BBSCC), on the back body skin surface, and the Back Sway Span (BSS) which is the imaginary straight line leading from the lower thoracic (T11-T12) to pelvis (Sacrum SI). See Fig.1
  • LBFF expression causes the BSS to elongate and finally equal and align with the BBSCC. See Fig.2
  • LBFF is part of most day to day flexing movements , but is expressed more, or less, depending on individual and on the daily life movement that is made. In some daily life movements it is often expressed more: For example when one tends to reach forward from a standing position LBFF is frequently over expressed. Vacuum cleaning is a frequent expresser of LBFF.
  • a first view is how the vertebrae move with respect to one another in a vertebrae pair. See Fig.3
  • the movement of the upper vertebra in a lumbar vertebra pair, compared to the lower vertebra is as follows:
  • the upper vertebra slides forwards (in the anterior or belly direction) and upwards, while it rotates (inclines) on its own.
  • the joint side connections between the lower and upper vertebrae get hereby slightly disjointed. This is the vertical relative displacement of the processi articulari , also called vertebral facets.
  • the inter vertebral discs have a wedge form, when the user is standing in normal position, with their large wedge base on the anterior side. This wedge form disappears or even inverses (wedge on posterior side) during the inclination of the lower vertebra. This wedge deformation causes a vertical elongation of the vertebra pair its height, and thus the height of the overall spine.
  • a second view on LBFF movement is then the resulting, grand motion, which is the superposition of all these above described small relative motions of the vertebra pairs, and shows us how the lumbar column is driven by the downwards rotating thoracic column and complete torso system, into a downwards and forward rotation and thereby makes the lumbar dorlosis disappear and the lumbar spine elongate.
  • the BSS elongate and align to the BBSCC which only elongates slightly. See Fig.5 . This BSS elongation is exploited by this invention.
  • the elongation of the spine is 2cm and the elongation of the imaginary BSS is of 8cm.
  • the total curvature or opening angle of the lumbar lordosis is 45 degrees.
  • LBFF is warned against as it is a complex risky movement involving rotations and shifts, of the lower back vertebrae and their whole associated spinal system of ligaments muscles tendons joints veins and nerves. Moreover, the lower vertebrae are naturally ,due to their position, subject to the highest stress forces and pressures in the skeleton. Much of the health advice around lifting objects implicitly aims at reducing the LBFF movement.
  • LBFF warning device that allows full mobility for all movements, forward flexing movements included, but clearly indicates to the user ,and optionally to an electronic monitoring device, when the more risky LBFF flexing movement is made or over expressed.
  • the device should be easy to wear and easy to activate and de activate anywhere any time and on the go.
  • the device should be lightweight and avoid skin contact and difficult set-up. The device should not pose problems to shop and airport security systems.
  • Monitoring comprises the electronic capturing and processing of measurements and recording them 95 for posterior feedback and analysis and converting them to immediate feedback signals .
  • a problem with present lower back measurement state of the art and measurements on the skin surface is the disturbing factor of the skin and the dependence of the skin movements not only on 105 the close by vertebrae movements one wants to monitor, but foremost on the whole spinal body system which consists of fat muscles and ligaments , veins, nerves and the bony ends of vertebra.
  • a misunderstood measurement disturbance factor is the way the skin is hung up in the overall skeletal system in the body. It is a distributed system and local (elongation) effects trickle up and
  • the skin is humid or changes humidity and does not like adhesives or any other contraptions for restraining sensors or devices.
  • This invention proposes a feature that addresses these issues, notably by using a body tight, and providing a larger scope and context to reference the sensors from.
  • a stress measurement sensor should be embedded "in series" with the device under test, it should provide an 130 impression of the whole stress surface under consideration, and one expects the measuring sensor not to unduly disturb and elongate the device.
  • Miniaturised inclination sensors are in the present state of the art made of micro mechanical silicon etched circuitry (MEMS) and packaged as integrated circuits. Their dimensions are typical 10x10x3 mm, for inclination sensors that can provide inclination output in 2 dimensions. They typically 140 provide an output that can be interpreted as the sensors plane (defined its largest 10x10 mm surface size) inclination versus the gravity vertical. They are mechanical devices that produce their output from stress movements caused by gravitation.
  • MEMS micro mechanical silicon etched circuitry
  • the main idea of the invention is to exploit BSS elongation in a controlled way.
  • the inspiration for this method of anchoring and standard clothing material like cotton can be used for material as it is sufficiently inelastic.
  • Other materials like polymer webbing , or string, or body tight material which is made stronger and inelastic in specific parts are considered as well and define the various embodiments of the device.
  • the body geometry at neck or shoulders are ideal for anchoring against downward pull, and the body geometry at pelvis is ideal for anchoring against
  • Fig.8 conceptually illustrates this main idea behind the device, whereby an inelastic material ,a string, gets under stress when opening a hinge that widens the distance between the deferred 170 constraints of this string.
  • the device has 3 main parts: the top bottom and central part. See Fig.10
  • Top and bottom part provide for the anchoring of the device to the body and assuring a restraint against BSS elongation.
  • the anchoring is done by a tying up or looping around the body parts with string, or wrapping around the body parts with clothing like material.
  • Top and bottom part are connected to the central part, where a buckle with adjustable straps are 180 located.
  • the central part is made out of a polymer webbing strip, and spans the BSS.
  • the central part can be made entirely out of 1 type of inelastic webbing, or of several types of webbing with different elastic properties as discussed further.
  • the central part can be a string but it is proposed to be webbing based as this allows for a webbing buckle and webbing makes for a better choice to keep the central part flat against the user's back.
  • Webbing buckles with integrated 185 adjustment straps and side release buttons are a well engineered commodity used in many
  • the buckle in the central part allows for easy splitting, by means of for example easy to find and operate side release buttons ,the central part , and thus deactivating the device.
  • the adjustable straps allow for buckle positioning and for manual introducing or removing of the possibly different types of webbing.
  • Top and bottom parts are made out of the material choices as per the chosen embodiment.
  • Connection between the 3 parts can be done with simple straps , sewed or glued, or be more elaborate and the engineering design choice for this will be determined by cost, aesthetics, user preference and a design for allowing a certain movement degree of freedom between the 3 parts under the forces at play.
  • the device is installed by mounting the parts on the body separately, dressing up, and then closing the buckle 2 unite the 2 central part halves.
  • This 2 part assembly allows for mounting like one would dress into normal clothes, which is an important feature of this invention. See Fig.34.
  • Slack or pre tension is then applied which defines the amount of LBFF expression needed before the user feels considerable stress from it, and before the user subsequently feels movement restriction from it.
  • the pre tension is applied with the adjustable straps at the buckle. This is an important feature as the user may wish to change this on the go dependant on which activity he is doing and which specific movement awareness he is training for. The user may also wish to deactivate the device during the day which only requires opening the 1 buckle in central part. Once the straps are adjusted the user can go to toilet during the day and by simply opening the buckle will discard the device from the back and when refitting his clothes and closing the buckle, the device will still be well adjusted.
  • the device tensions While wearing the device in active or closed buckle condition, when the wearer expresses LBFF, the device tensions: The tension is propagated through the central webbing strips and top and bottom parts to the neck or shoulders and pelvis where the device is anchored and the wearer will sensorily experience this increasing tension as a warning.
  • the symmetrical layout of the device entails symmetrical stress propagation and this can be exploited to position stress sensors or stress safety relieves.
  • the symmetry promotes alignment under the forces at play at all times. See Fig.16.
  • cloth , string or body tight material can be cut or tuned in width to accentuate more sensorily experience in one location (eg on 1 shoulder) only. If wider cloth , string or cloth is chosen for the bottom part of the device, the LBFF induced stress will be less experienced there, which adds to the comfort of the device.
  • a plastic implement can be positioned
  • a 1st working mode is where the device is in slack. Any initial LBFF will not be felt by the user. This is useful as LBFF movement is always present for some small part in hip flexing, or thoracic 265 flexing.
  • a 2 nd mode is where the device is under full operating stress during the main part of LBFF movement. Although the user can make the movement he feels the stress by the restrained parts of the device against its upper and lower skeletal anchoring. This is the training mode with increased intensity of sensorily experience for increased LBFF expression.
  • 270 A 3 rd mode is where the restraints restrict further movement as the elasticity of body+device have played their part to the maximum.
  • the device works in the limit as an orthosis.
  • more initial slack could be set, or more webbing material stripcould be introduced with elastic working mode under nominal LBFF force.
  • the safety relieve can be tuned or selected to set in at a lower force. This has to be a repeat safety relieve then , not a
  • a 4 th working mode is then the safety release that kicks in and allows more material in the stressed device sliding in, or opens up the device making it inactive.
  • This safety release can be implemented as a string clamp for the string embodiment anywhere in the top device part, or as breakdown stretching solution in the central webbing, for example with a velcroTM strip.
  • This slack can be made invisible for clothes and user by using a 2 mode elastic strip in a part of the central part of the device.
  • the slack will be concealed by a ,for the user barely noticeable, redressing force (indicatively 1 Newton) exerted by the 2 mode 285 elastic strip , and this specific strip will be lengthening as if a slacking strip during initial LBFF expression without exerting a larger restraining force, and from a certain elongation ⁇ onwards the 2 nd mode of this strip will kick in whereby LBFF expression is indicated and the material of this strip behaves inelastic. See Fig.18
  • Device stress measurement can be done on the device central part, or anywhere for the string embodiment.
  • This stress output is a time stamped proxy for LBFF presence and amount of expression of it.
  • the intensity is indicative for LBFF expression.
  • Both sensor restraints are on the stress propagating part and cover the full width of this part thereby 295 providing a correct stress measure.
  • the device scaffolding and stress outlay provides for the installation of spine direction measurement with inclination sensors.
  • the averaged direction of the lower back can be measured with inclination sensors on the device central part and the thoracic spine direction with inclination 300 sensors installed on the device leads to the neck or shoulders.
  • the measurement gives a stable body macro measure of direction as provided by the overall device construct. This in contrast with what inclination sensors stuck on possibly erratically moving skin or body clothing would provide.
  • the measured directional output provides a time stamped record of the overall user body position and activity which can be used for body movement analysis with respect to LBFF movements.
  • the measured output is correlated to LBFF expression when the sensor end on the body tight is at Thoracic T12.
  • An inelastic neck collar could be used to make an elongation measurement possible without body 315 tight. In this case the complete spinal elongation would be measured as the neck collar is a good reference for the upper skeleton.
  • the measured output provides a timestamped record of spinal elongation which can be used for body movement analysis with respect to LBFF.
  • One body tight embodiment shows inclination sensors installed on the lower back BBSCC along the spinal tract, on the body tight. 1 or more sensors are installed on the upper half of the lumbar lordosis and 1 or more sensors should be installed on the lower half. The differences between the measured inclinations result in a correct calculation of the lumbar lordosis angle. The measured interpreted output provides a timestamped record of lumbar lordosis angle.
  • This provides a material choice of 2 dimensional, 1 dimensional or 2 dimensional sticky material properties.
  • the embodiments differ in the choice for material used in the device top and bottom part.
  • the device central part has its own embodiment choices not described in this chapter, and these choices are dependant on user specific tuning requirements, and is made of string or a variety of thin polymer webbing materials with possibly different elastic characteristics as described in the above stress and slack discussion.
  • a string embodiment provides the solution as a mere clothing accessory ,the user can still decide what to wear underneath, and might be easier to fine tune, whereas a cloth embodiment might provide more wearing comfort and a body 340 tight embodiment needs only little tuning and is ideal to combine with a monitoring activity.
  • the cloth and body tight embodiment will have to be specially designed for or adapted from standard retail available products to allow for proper stress handling to assure device lifetime and minimise deformation under the stresses required and generated by the device restraints. They will have a distributed solution for safety breakdown, eg a perforated line or will have a safety provision 345 in the device central part.
  • the materials used are all standard clothing materials and as such will not pose problems with shop and airport security , and are maintained and washable like normal clothes. This is an important feature of this invention.
  • the top and bottom part are implemented as clothing which is not elastic in vertical direction.
  • the clothing material used can be cotton or polymer webbing material such as commonly used in outdoor equipment like back packs, or can be throw away material like paper as sometimes is used in patient hospital care attire.
  • Anchoring is done via wrapping of material around neck or shoulders ,and pelvis respectively.
  • Fig 11 shows the simplest configuration whereby the top part follows the spine and then wraps around the neck by which the top part is anchored. While this design is most efficient and least disturbance prone it will not fit or be disliked by many users as the sensorily experience will resemble choking.
  • the neck wrap cloth embodiment is for the rest similar to the further discussed shoulder wrapped cloth
  • the restraining stress is 2 dimensionally distributed at neck or shoulders and at pelvis respectively, 370 only at the central part is there a narrow funnelling which makes it the only possible location for stress measurement.
  • Comfortable wear A lot of pre tensioning can be applied as the anchoring of the device is widely spread over shoulders and pelvis areas, which makes the device fit for a set-up where some 375 movement restriction is desired or where the specific user body geometry leaves no other option.
  • This embodiment is a clothing accessory:
  • the device can be worn on the skin directly or on top of a body tight.
  • the material used is plastic or natural cordage made of nylon polyproylene or other polymer or natural twine or sisal , with a diameter of 2-6mm.
  • Anchoring is done via tying and looping around the neck or shoulders and pelvis respectively.
  • Additional provisions are sewed loops, rings or conduits to facilitate the movements of the strings and facilitate the movement of top and bottom device part with respect to the central device part.
  • a ring is sewed to the top end of the central part webbing.
  • a tied (knotted or manufactured) loop of string is pushed through the ring for half its length, thereby making 2 half loops of string one at each side of the ring.
  • the user puts his arms through each half, having the half loop strings run over the shoulders and under the arms while the ring is positioned on the back.
  • the ring positions itself automatically at the lower end of the top part as it is connected with the central part which pulls it down by its weight.
  • a similar construct is used for the bottom part, whereby the legs are stuck through each half loop.
  • the ring will situate itself at the upper end of the bottom part, where it is held up by its connection with the central part.
  • the purpose of the use of rings is to allow the string loop to self align thereby slide frictionless through the ring to give one string half loop more string and the other half loop less so, as the changed body positions and forces demand for it during wearing of the device in normal daily activities.
  • the rings can be more elaborate constructs, polymer extruded conduits, that better allow the string ends to slide independantly from each other and the central part connection and that keep the conduit and whole assembly flat against the back.
  • the string loop length is bespoke tailored to the user body.
  • the string length is chosen so that the upper ring (or webbing loop, or conduit) will be situated at, and be a reference of the upper BSS end , so it will be positioned above the lumbar curvature proximate to L6-L7.
  • the ring in the bottom part will be a reference of the BSS bottom end, at location Sacrum SI .
  • the central part will follow and cover the BSS span as described in the overall solution.
  • rings(conduits, sewed loops) allows for minimising slack during all possible movements. See Figs.22-25. This is an essential feature of this embodiment compared to span jacket embodiment, as explained below.
  • the design is such that the central part keeps covering the BSS during all movements and that all other spinal and bending movements except LBFF go unhindered.
  • 450 1 -Stress measurements can be performed on the strings located anywhere in the device.
  • the device top and bottom part consist of a body tight top/shirt and a body tight trunks/briefs.
  • body tight clothing mean clothing made out of tight fitting partly polymer based materials 460 like SpandexTM ,LycraTM ,elasthaneTM which are often used in sportswear like swimming wear and bicycle trousers and which most of the time contain a material mix with a polyurethane component in it.
  • the anchoring is similar to the cloth webbing embodiment and is a 2 dimensional distribution at top of shoulders and around pelvis and legs, but there is also an additional distributed restraining force 465 via the shear stress between body tight and skin present.
  • a body tight material embodiment will require adaptation of standard retail available body tight clothing as the parts are subjected to the forces for LBFF indication.
  • the central part connects to the top and bottom parts at reinforced and sewed in landing patches in 470 the body tight material. This is because the body tight material would simply stretch under the forces required to indicate LBFF feedback to the user.
  • the pads must distribute the injected stress around the body tight material with sewed-in veins that have higher strength and less elasticity than the surrounding body tight material. Also instead of strings, similar stronger sewed-in seams are used to lead most of the pulling forces during LBFF from central part to the neck or shoulders and 475 the pelvis respectively.
  • the device is robust against various non LBFF flexing and other bodily movements , as is inherent for this type of tight fitting material. It does not come out of alignment thanks to the sticky shear 480 stress skin-material.
  • Bespoke tailored and cut out design of the body tight pieces with patches of different elasticity is the preferred way to tune this to the specific user geometry.
  • the embodiments are a mix of string embodiment and body tight embodiment, one embodiment has a body tight top/shirt , the other a body tight bottom/trunk.
  • the elongation sensors are conceptually depicted. It is an engineering issue how to implement this in detail and which technology (sensor gauges)to use for them and the only concern here is how the 500 invention provides proper restraint and context for such sensors.
  • the purpose of the body tight in this configuration is to provide protection against eventual skin friction irritation by the device, and to allow the device strings to slide smoothly over and find easier their natural position subject to the forces at play.
  • the body tight allows to package and present the overall device assembly as 2 distinct parts only, 510 which are easily mounted (dressed on) like a top/shirt and a briefs/trunks.
  • the strings of the top and bottom part are thereby put under strips which are with both ends fixed with adhesives to the body tight.
  • the strings have enough mobility for their purpose under the strips but will not slide off when the user dresses or undresses.
  • the body tight provides a muscle compacting and composure and balance improving effect on the back body, as is its marketed wont in sports attire, and provides for a scaffold to fix the sensor ends on, without requiring adhesives on skin.
  • polymer foam stubs which can be glued to the bottom body tight , or similarly tied and positioned on a trousers' belt, and 520 which allow the use of normal trousers and belt on top of the device.
  • the stubs increase the clearance naturally formed by the spinal dorsal curvature in the horizontal plane as can be seen from a top view on a normally standing user. This clearance allows for the central part and bottom part material to move vertically up and down without being hindered by the back body and vice versa, during all daily movements.
  • the figures are all organised with 9 figures in 1 page , 3 rows by 3 columns, equal space for each figure.
  • the Back Sway (1) is the space between the imaginary BSS (3) and the BBSCC (2)
  • the BBSCC is slightly lengthened(15) because of the LBFF expression( ⁇ 2cm)
  • a skeleton is schematically represented with head(17) , shoulders(18), vertebrae(19), pelvis (20) and inter vertebral disks(14).
  • the lumbar dorlosis and the way it changes its shape is not shown here as a driver for skin movement, for simplicity.
  • the spinal column elongates because the inter vertebral disks change during vertebrae rotation.
  • the buttocks (21) flatten as does other fat muscle build ups (22) in the system, and this flattening allows the skin to absorb the column elongation.
  • the skeleton is represented with one dimensional representation of shoulders(23) spine , lumbar dorlosis as a hinge and pelvis.
  • An inelastic string(25) is tied around shoulders and pelvis(24), spanning the back sway at (3). When the back sway opens as a hinge, there is not enough string to span the whole length from shoulders to pelvis and the system comes under stress whereby the most
  • Cloth embodiment of the invention with webbing or other cloth like material which is inelastic User shown in normal standing position, back view, with following parts: the top part (30)which is wrapped or anchored like a jacket around (34) the shoulders, providing a restraint against downward pull. The bottom part (31) wrapped around (35) thighs and pelvis providing a similar 595 restraint against an upward pull.
  • the central part (32) which is made of inelastic material and can be for example a polyethylene webbing.
  • the central part covers the BSS.
  • the buckle(33) with adjustable straps in the central part can split the central part in 2 for activation deactivation of the overall device functioning.
  • An implement(27) made of polymer, a protruded part can be positioned under the cloth on top of 600 one of the shoulders where most of the sensorily experience is desired. This accentuation is needed as the anchoring force is distributed over a large area on the shoulders/pelvis.
  • top part wrapped and anchored around neck instead of shoulders.
  • the training feedback indication for this device will then be that the user notices the snap has released and needs to be put back in place.
  • top part follows the spine over all of its length, the connections of top part to central part can be with adhesive strip(28).
  • Suitable cloth material could be hospital patient throw away clothing for an indoors setting.
  • Figure 12 620 Cloth embodiment side view, shoulder wrapped, LBFF expressed.
  • the exclamation marks show the areas of focused stress of the anchoring webbing.
  • (40) is the top ring, large enough to allow both string loop halves to slide through and allows for the connection to the central part.
  • the ring can be of plastic and can be of a more elaborate form in order to optimize balancing of forces and comfort of wearing, then called a conduit. It could also be a loop made out of same webbing material strip as the central part in its simplest implementation. 630 Its main feature is that it allows string sliding and stays pressed flat against the user's back and does not hinder.
  • (41) is the bottom ring, of the same layout as (40) but form and choice of material might differ due to further design considerations like cost and comfort.
  • the string embodiment finds a natural optimal position (along geodesic lines on the human body form) as the parts are subject to forces from the body restraints. This positioning maximises comfort and minimises risk for faulty 635 positioning and malfunctioning of the device.
  • the device has found an optimal position being subject to the new forces and configuration.
  • the stress in the device is propagated in a well defined way, as is shown by the force arrows.
  • the stress which is the main feature of the device is funnelled through the central part.
  • the clamp consists of a spring which presses the string against the clamp's housing thereby causing a defined friction against the pulling force of the string. When this friction is exceeded the string will glide.
  • This set up also allows to adjust for slack with just one adjustable strap in the central part.
  • This graph shows the stress in the device versus the imaginary BSS elongation. It is a good proxy for the users experience “device LBFF indication” versus “LBBF expression”, as well. It shows the 4 different modes of working of the device+body system.
  • Mode I the device is in slack and the BSS elongation is undefined over a range(44) and there is little stress (45).
  • Mode HI the device does not get any more leeway from body indentation at its body anchoring around shoulders and pelvis experience a limit and hence the BSS elongation stops and there is movement restriction.
  • the system as a whole becomes inelastic as seen by the steep slope (46). 685
  • Mode IV the user has expressed even more LBFF thereby increasing the stress to a safety
  • This figure shows a 2 mode elastic material part embedded in device central part and its 2 modes.
  • a slack ⁇ is possible and will be redressed and made invisible by the 2 mode elastic material. Instead of visible slacked material we have tightly aligned material but which is compressed by a smaller force or stress than the ones at play in the device during LBFF expression. When LBFF expresses so far such that the BSS elongates more than this pre set slack , the 2 nd mode of the elastic
  • the ring(55) is subject to the downward pulling force(57) from the central part webbing(32) which is looped around the ring and sewed (56).
  • the lower string loop half (58) presses the ring against the users back at (59) while the upper string loop half(60) does that at (61).
  • the upper loop half will exert a pulling force on the ring which 715 originates from the shoulder's string anchoring.
  • the purpose of the ring is to keep the device flattened against the back, to allow for string sliding through and allow the device central part and top part some degree of freedom of movement.
  • a bottom ring is of a similar set up with the connection to the central part at the top of the bottom ring.
  • Figure 20 string conduits used with string embodiment of top and bottom part.
  • the parts are made out of polymer material. The additional features of these parts are that the strings cannot hinder each other any more as they slide separately (64), (65) inside the conduit from 725 each other and from the central part connection(66). The strings have more contacts with the strings
  • conduit which allows for better force balancing and hence easier self alignment of the conduit and overall device.
  • the geometry can further be made in such way (smooth , flat) that the conduits provide some further shield against possible mutual hindrance from normal clothing accessories like bra and belt.
  • Top and bottom conduits have different geometries , as the strings will approach the conduits from a different angle due to the body geometry.
  • the adjustable straps allow to introduce or 735 remove webbing active strip and allow for setting pretension or slack in the device and allow to position the buckle vertically.
  • (70),(71) webbing adjustable straps integrated with buckle. Pulling the webbing loose ends further out of the straps will reposition the buckle or will further tension the device.
  • this is a looped and sewed central webbing end that connects the central part to the top ring 740 conduit.
  • this is a looped and sewed central webbing strip end that connects the central part to the bottom part , which is just a string loop, and acts as conduit for this bottom loop.
  • the buckle (74) is a side release button of the buckle for easily snapping the central part in 2 parts by hand and deactivating the device.
  • the buckle can easily be reached in daily life by arm and hand tending backwards to deactivate the device. This is an important feature of the device.
  • the device does not hinder this spinal movement
  • the device remains well centred with its central part over the BSS.
  • the device does not hinder this spinal movement type.
  • the movement does not hinder the device and does not give false indication for LBFF.
  • the device remains well centred with its central part over the BSS,
  • the device is wired below the cervical vertebrae so not affected by them, and flexing the thoracic vertebrae does not modify the top ring/conduit position on the wearer's back as the
  • Hip joint flexing The device does not hinder hip joint flexing
  • the central part of the device remains aligned over BSS.
  • the left shoulder parts get closer to the spine the right shoulder parts get further from the spine, where the upper ring/conduit is located.
  • the device does not hinder movement as the central part of the device has little width and does not 780 hinder the rotation.
  • the rotation does affect the required string lengths in the upper loop however, string will slide through the ring/conduit to enable optimal arrangement.
  • An example embodiment which is a mix of string(top) and cloth(bottom) embodiment with textile 785 in bottom loop for comfort.
  • the string embodiment allows for positioning sensors and electronics anywhere in the device.
  • Body tight embodiment standing position, back view.
  • the device top part is implemented as a body tight top/shirt (101), and the device bottom part is implemented as a body tight briefs/trunks(102).
  • the anchoring forces for the device are partly distributed and not just provided by wrappings around shoulders and pelvis but partly provided by the body tight skin contact (96) (97)and are shear stress based.
  • the standard retail body tight top and bottom are adapted with sewed in or glued 800 in reinforcement pads (98),(99) to connect the body tight parts to the device central part.
  • Inelastic seams (100) are sewed into the body tight parts to provide for the shoulder and pelvis anchoring.
  • Body tight embodiment standing position, side view.
  • the shear stress anchoring spreads to the side of the users body.
  • Body tight embodiment LBFF flexed position, back view.
  • Body tight embodiment LBFF flexed position, side view.
  • the left setup has a string top part and a body tight trunks bottom part.
  • the left setup sensor uses an inelastic neck collar (106) for one end and the central part for the other end and allows for an accurate measurement of the complete spine elongation as the references of this measurement relate in a well defined way to lower and upper skeleton.
  • the right setup has a 820 body tight shirt top part, and a string bottom part.
  • the right setup has 2 sensors and uses adhesive patches on the body tight top for one end of both sensors ,the other end is for both sensors again on the central part. Both set ups allows for simpler sensor wiring and avoid skin contact.
  • the body tight will filter for skin movement variability unrelated to overall LBFF flexing.
  • the bottom measurement in the right setup will provide a measurement of spinal elongation biased towards the 825 lower back flexion.
  • Upper measurement will do similar for upper back flexion.
  • Inclination sensors (107) are positioned on the inelastic seams towards shoulders, on the device central part and along the BBSCC on the body tight. Using more sensors allows for sensor failure 830 filtering.
  • the sensors are placed on pads (108) to provide for mechanical contacts and electronic interfacing.
  • the sensor circuit wiring (109) follows the inelastic seams for reason of stress protection of the pad's connectors.
  • the use of a sensor on the central part gives a contextual independent indication from the body tight indications, as the central part has a macro context from the device. This allows for faulty or wrong positioned sensor detection.
  • sensor output provides a check for the overall spinal alignment of the device. A lateral deviation from a sensor provides a clue for sensor malpositioning.
  • the macro whole body anchoring of the device provides valuable sensor output (seam sensors and central part sensors) that is independent from the BBSCC sensors which makes the overall monitoring much more reliable.
  • a string embodiment is used with adhesive strips (116) holding the string wires against a top/shirt and bottom trunks/briefs standard retail body tight.
  • the central part holds 2 webbing material types(HO), (112) with possibly different working modes and elastic properties and with remaining material (111), (113) available to introduce via the straps. 855
  • the central part is split in 2 by the buckle leaving 2 buckle halves (114), (115). the other ends of the central part webbing are the straps of the adapted conduits (117), (118)
  • Figure 36 Shows the same polymer foams as seen from top showing waist(123) and clearance(124)
  • L 1023363 exploits the reducing width of the back sway during LBFF.
  • Anterior in the direction of the user's front, belly.
  • BSS Back Sway Span, imaginary line in air between SI and T12 delimiting the back sway
  • BBSCC Body Back Sway Curve Contour , the area on the user's lower back body delimiting the back sway
  • Body Tight material or clothing part of said material containing elasthane or similar and tightly fitting the user's body in a comfortable manner.
  • Elasticity Modulus the slope in a stress versus elongation graph, flat slopes indicate very elastic 900 materials, steep slopes indicate stiff materials.
  • Lumbar of the lower back, lumbar dorlosis is the lower back curvature
  • Sagittarian plane a vertical plane showing a side view of the user

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention concerne le domaine du syndrome des douleurs du bas du dos, et le domaine étendu de l'analyse de médication et de la prévention d'affections du bas du dos. L'invention concerne le sous-domaine du contrôle et de l'enregistrement de mouvements du corps et le sous-domaine des dispositifs d'entraînement et de contrôle portables. A cet effet, l'invention porte sur un dispositif d'exercice qui indique à l'utilisateur le moment où un mouvement de flexion vers l'avant du bas du dos est effectué et qui offre la possibilité de réaliser un contrôle électronique dudit mouvement.
PCT/EP2011/069028 2011-10-28 2011-10-28 Dispositif d'exercice contre les douleurs du bas du dos Ceased WO2013060388A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/069028 WO2013060388A1 (fr) 2011-10-28 2011-10-28 Dispositif d'exercice contre les douleurs du bas du dos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/069028 WO2013060388A1 (fr) 2011-10-28 2011-10-28 Dispositif d'exercice contre les douleurs du bas du dos

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WO2013060388A1 true WO2013060388A1 (fr) 2013-05-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015022570A1 (fr) * 2013-08-13 2015-02-19 Basin Denis Dispositif d'entrainement de coordinations de l'appareil musculaire
WO2020049163A1 (fr) 2018-09-06 2020-03-12 Myoswiss Ag Dispositif d'assistance passive portable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608451A (en) 1969-09-18 1971-09-28 Lester S Kelem Structure for exposing photographic film with flash illumination
US5143088A (en) 1989-04-12 1992-09-01 William S. Marras Apparatus for monitoring the motion components of the spine
US5259833A (en) * 1992-09-15 1993-11-09 Barnett Larry W Back bending motion limiting apparatus
US6450131B1 (en) * 2001-06-18 2002-09-17 Daniel James Broman Forward bending motion control harness
NL1023363C2 (nl) 2003-05-08 2004-11-09 Albertus Bruggeman Rugbel.
US20060047232A1 (en) 2004-09-01 2006-03-02 Robert Bourne Back training device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608451A (en) 1969-09-18 1971-09-28 Lester S Kelem Structure for exposing photographic film with flash illumination
US5143088A (en) 1989-04-12 1992-09-01 William S. Marras Apparatus for monitoring the motion components of the spine
US5259833A (en) * 1992-09-15 1993-11-09 Barnett Larry W Back bending motion limiting apparatus
US6450131B1 (en) * 2001-06-18 2002-09-17 Daniel James Broman Forward bending motion control harness
NL1023363C2 (nl) 2003-05-08 2004-11-09 Albertus Bruggeman Rugbel.
US20060047232A1 (en) 2004-09-01 2006-03-02 Robert Bourne Back training device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"manual therapy journal", vol. 15, April 2010, ELSEVIER PUBLISHERS, article "The Spineangel(R): Examining the validity and reliability of a novel clinical device for monitoring trunk motion"
GJ DONATELL ET AL.: "A simple device to monitor flexion and lateral bending of the lumbar spine", IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, vol. 13, no. 1, March 2005 (2005-03-01), XP011127964, DOI: doi:10.1109/TNSRE.2005.843446

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015022570A1 (fr) * 2013-08-13 2015-02-19 Basin Denis Dispositif d'entrainement de coordinations de l'appareil musculaire
WO2020049163A1 (fr) 2018-09-06 2020-03-12 Myoswiss Ag Dispositif d'assistance passive portable

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