Orthopaedic foot bed and method for producing an orthopaedic foot bed
11154112 · 2021-10-26
Inventors
Cpc classification
A43B7/144
HUMAN NECESSITIES
A43B17/00
HUMAN NECESSITIES
A43B7/146
HUMAN NECESSITIES
International classification
Abstract
Orthopaedic foot bed for a shoe with a foot support surface, wherein the foot support surface is formed by a plane base surface. The foot bed has a multiplicity of knobs which are distributed in a predefined manner and by which the stimulation points in the sole are stimulated in a targeted manner, as a result of which the neurological, biotensegrity and liquid-dynamic system of the human body can in turn be improved. Through the improvement thereby achieved, it is possible to address and improve certain aspects of human health, which in particular include the gait pattern and posture of the human body. Moreover, by means of the invention, the transport of the lymphatic and venous liquids (“heart of feet function” of the sole) can be excited and intensified.
Claims
1. An orthopaedic footbed for a shoe, comprising: a foot contact surface, wherein the foot contact surface is formed by a planar base surface having a plurality of pimples that is arranged in accordance with a distribution of the plurality of pimples that is optimized for podiatry, wherein the distribution of the plurality of pimples that is optimized for podiatry corresponds to: a distribution such that when a user wears the shoe, the distribution corresponds to an anatomical distribution, projected in the foot contact surface, of bony parts of a human foot of the user that comes into contact with the foot contact surface, wherein the plurality of pimples is arranged in a zone of the foot contact surface on which the human foot comes into contact by a front ball of the foot of the human foot, in five rows, corresponding to: orientation of bony parts that form toes of the human foot, wherein the plurality of pimples is arranged in a circular manner in a zone of the foot contact surface on which a heel of the human foot comes into contact, and wherein the plurality of pimples is arranged in a zone of the foot contact surface on which a midfoot region of the human foot comes into contact, in at least two lines that diverge towards an inside of the foot contact surface, wherein the inside of the foot contact surface is a side of the foot contact surface that is assigned to an inside of the human foot resting thereon.
2. The orthopaedic footbed according to claim 1, wherein spacings between pimples of the plurality of pimples reduce, in a longitudinal direction of the foot contact surface, proceeding from a zone of the foot contact surface on which a midfoot region of the human foot comes into contact, to a front and/or rear face of the foot contact surface.
3. The orthopaedic footbed according to claim 1, wherein the pimples of the plurality of pimples are of an identical height.
4. The orthopaedic footbed according to claim 1, wherein the pimples of the plurality of pimples is of a height of from 2 to 3 mm with respect to the foot contact surface.
5. The orthopaedic footbed according to claim 1, wherein the pimples of the plurality of pimples have a diameter of from 3 to 5 mm.
6. The orthopaedic footbed according to claim 1, wherein the insole has a resiliency that is such that said insole can be folded and/or shaped into another shape, in a non-destructive manner, via pressure application, and said insole returns automatically to an original shape thereof when the pressure is relieved.
7. The orthopaedic footbed according to claim 1, wherein the foot contact surface comprises at least one functional zone which is raised or depressed relative to planar base surface of the foot contact surface and/or has a greater or lesser hardness than the orthopaedic footbed in a remaining portion.
8. The orthopaedic footbed according to claim 7, wherein the at least one functional zone is formed so as to have a greater hardness via a group of pimples of the plurality of pimples having a different hardness with respect to the remaining pimples of the plurality of pimples.
9. The orthopaedic footbed according to either claim 7, wherein the at least one functional zone is raised or depressed by 3 to 5 mm relative to the planar base surface.
10. The orthopaedic footbed according to claim 7, wherein the at least one functional zone is formed by a talipes valgus correction surface which is raised relative to the planar base surface and is arranged in a zone of the foot contact surface on which the human foot comes into contact by a front ball of the foot of the human foot and a foot arch of the human foot.
11. The orthopaedic footbed according to claim 7, wherein the at least one functional zone is formed by a statics correction surface which is raised relative to the planar base surface and is arranged in a zone of the foot contact surface on which the human foot comes into contact by the heel of the human foot.
12. The orthopaedic footbed according to claim 7, wherein the at least one functional zone is formed by a pes cavus correction surface which is raised relative to the planar base surface and is arranged in a zone of the foot contact surface on which an entire width of the front foot part of the human foot comes into contact.
13. The orthopaedic footbed according to claim 7, wherein the at least one functional zone is formed by a calcaneal spur correction surface which is depressed relative to the planar base surface and is arranged in a zone of the foot contact surface on which the human foot comes into contact by a central portion of the heel of the human foot thereof and/or by a central region of the foot arch of the human foot.
14. The orthopaedic footbed according to claim 7, wherein the at least one functional zone is formed by a portion which is raised relative to the planar base surface and is of a lesser hardness than the planar base surface, which portion is arranged in a zone of the foot contact surface on which the human foot comes into contact, on the inside of the foot contact surface by a midfoot region of the human foot that is arranged between a heel of the human foot and a ball of the human foot.
15. A set of orthopaedic footbeds, comprising: a plurality of orthopaedic footbeds, wherein each orthopaedic footbed of the plurality of orthopaedic footbeds is an orthopaedic footbed in accordance with claim 7, wherein, for each orthopaedic footbed of the plurality of orthopaedic footbeds, the at least one functional zone and the planar base surface are in each case formed by uniform, pre-defined, person-independent surfaces, and wherein the orthopaedic footbeds of the plurality of orthopaedic footbeds are formed as a range of different orthopaedic footbeds each having different foot contact surfaces via a combination of the planer base surface and different at least one functional zones.
16. A method for providing an orthopaedic footbed that is adapted with respect to a structural and/or functional disorder of a foot of a person, comprising: providing a plurality of different orthopaedic footbeds, wherein each orthopaedic footbed of the plurality of different orthopaedic footbeds is an orthopaedic footbed in accordance with claim 1, wherein each orthopaedic footbed of the plurality of different orthopaedic footbeds is of a defined size, which orthopaedic footbeds in each case comprise different, modularly assembled, foot contact surfaces, wherein the modular foot contact surfaces of the different orthopaedic footbeds are formed by one of the following pre-defined, person-independent surfaces: a planar base surface, or a combination of a planar base surface and a person-independent functional zone that is adapted to a structural and/or functional disorder of the foot, and examining the person for the presence of a structural and/or functional disorder of the foot, and, if no structural and/or functional disorder (SK, FK) of the foot is present, an orthopaedic footbed of a person-dependent size and comprising a foot contact surface formed by a planar base surface is selected, and if a structural and/or functional disorder (SK, FK) is present, an orthopaedic footbed of a person-dependent size and comprising a foot contact surface formed by a combination of a planar base surface and at least one functional zone is selected.
17. The method according to claim 16, wherein in that the person is examined for the presence of a structural and/or functional disorder (SK, FK) of the foot using a suitable sensor means.
18. The method according to either claim 16, wherein the person is examined for the presence of a structural and/or functional disorder (SK, FK) of the foot using suitable visually identifiable criteria.
Description
(1) The invention will be explained in the following, on the basis of preferred embodiments and with reference to the accompanying figures, in which:
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(12) The reference signs 1 to 56 in each case denote an individual pimple 5 on the orthopaedic footbed 1, and therefore the distribution of the reference signs 1 to 56 corresponds to the distribution of the pimples 5 on the foot contact surface 3. In the basic arrangement thereof, the distribution of the pimples 5 corresponds to the arrangement of the essential bony parts 100 of the bone structure of the foot 16 and the pathways 200 extending thereon, in the projection in the foot contact surface 3 of the orthopaedic footbed 1, as can be easily identified by way of a comparison of
(13) In the basic structure thereof, the foot 16 which can be seen in a view from below in
(14)
(15) In the rear zone of the foot contact surface 3, on which the heel 102 of the foot 16 comes into contact, the pimples 5 are arranged in a circular manner in an imaginary ring, which can be seen from the reference signs 41 to 52. Four further pimples 5, having reference signs 53 to 56, are arranged in the centre of the imaginary ring, in as uniform a distribution as possible and in a square, having identical spacings in the longitudinal direction and transversely to the longitudinal direction of the foot contact surface 3. As a result, at the start of the rolling movement the foot 16 is uniformly stimulated in the stimulation zones of the heel 102, as a result of which the pumping process described at the outset is initiated. In this case, the stimulation signals triggered in the stimulation zones generate corresponding signals, in the person's brain, for pressure change in the associated chambers of the cells or the organs of the person, as a result of which the segmented nervous system and the organs are deliberately vitalized.
(16) During the further rolling movement, a midfoot region 103 of the person's foot 16 rolls on the foot contact surface 3, and in this case rolls over a zone of the foot contact surface 3 in which the pimples 5 are arranged in two imaginary lines that extend transversely to the longitudinal direction of the foot contact surface 3 and diverge towards the inside 105 of the foot contact surface 3, according to reference signs 40 to 36 and 35 to 31. The divergent orientation of the lines means that the spacings of the pimples 5 in the longitudinal direction of the foot contact surface 3 are greater on the inside 105 of the foot contact surface 3 than on the outside 106 of the foot contact surface 3. This arrangement of the pimples 5 is advantageous because the spacings of the stimulation points are smaller on the outside 106 of the foot 16 than on the inside 105. Owing to the divergent orientation, the spacings of the pimples 5 increase in the longitudinal direction of the foot contact surface from the outside 106 to the inside 105, i.e. transversely to the longitudinal direction. Furthermore, the foot arch of the foot 16 is taken into account thereby.
(17) During the further rolling movement, the ball of the foot 104 and the toes 101 of the foot come into contact on the foot contact surface 3 in a zone in which the pimples 5 are arranged in the longitudinal direction of the foot contact surface 3 in five imaginary lines, corresponding to the bony parts 100 of the toes 101. In this case, the pimples 5 are arranged in imaginary lines corresponding to the reference signs 1, 6, 11, 16, 21, 26, the reference signs 2, 7, 12, 17, 22, 27, the reference signs 3, 8, 13, 18, 23, 28, the reference signs 4, 9, 14, 19, 24, 29 and finally corresponding to the reference signs 5, 10, 15, 20, 25, 30. The distribution of the pimples 5 thus corresponds to the representation of the bony parts 100 that form the toes 101, and the pathways 200 arranged along said bony parts, such that in this zone the stimulation points of the toes 101 arranged on the bony parts 100 or the pathways 200 are stimulated in a targeted manner by the pimples 5 during the rolling movement.
(18) The insole 6 shown in
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(20) In
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(24) The orthopaedic footbed 1 can be designed both as an insole 6 and as a part of a lower shoe. All that is important is that the foot contact surface 3 is correspondingly shaped or that the foot contact surface 1 forms the corresponding foot contact surface 3 in the shoe. In this case, the footbed 1 can in addition comprise a leather coating or textile coating, as a result of which wearing the shoe 2 can be made more comfortable. Furthermore, the footbed 1 should be designed so as to be permanently elastic, breathable, liquid-absorbing and conducting. The resiliency of the footbed 1 should be such that it subjects the foot contact surface 16 to sufficient resistance, the resiliency being intended to allow for slight penetration of the foot 16 into the foot contact surface 3 without the basic distribution of the contact surface, according to the principle, being lost. In particular, the resiliency should be selected such that the foot 16 does not sink in so far as to be in contact over the entire surface thereof, since otherwise the desired loading of the foot 16 is not achieved. This is the case in particular if the foot 16 is structurally and functionally healthy and the foot contact surface 3 is formed only by a planar base surface 4, as is shown in
(25) If the orthopaedic footbed 1 is designed as an insole 6, this may be intrinsically resilient, and the functional zones therein may be formed having a greater strength or hardness. In this case, the insole 6 can have a resiliency that is such that said insole can be put into a bag folded, bent back or rolled up, without being damaged in the process. After the insole 6 has been removed from the bag, it unfolds automatically or with slight assistance, owing to the resiliency thereof, back into the original shape, and can thus be inserted into the shoe 2. Simply owing to the greater hardness of the footbed 1 in the region of the functional zones 8, the foot 16 experiences greater support and stimulation here than in the remaining regions of the base surface 4. Furthermore, in addition to the greater hardness thereof, the functional zones 8 can of course also be of a greater height or thickness and optionally comprise additional pimples 5 for stimulation of the sole of the foot.
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(27) Firstly, a range of different orthopaedic footbeds 1 having differently shaped foot contact surfaces 3 for different foot types, in different shoe sizes, shoe last widths and possibly also having different hardnesses, is kept available in a shop or a clinic, in which the people can select and test their orthopaedic footbed 1, which is matched individually to their feed 16, under specialist guidance from correspondingly trained consultants. In this case, the left and right foot 16 may also be different, and therefore different orthopaedic footbeds 1 may be deliberately selected for the left and right foot 16.
(28) Firstly, the customer K is assessed visually and by means of measurements, within the context of an initial assessment E, by the consultant, optionally with the aid of corresponding sensor means such as pressure-sensitive standing surfaces or treadmills. In this case, further aids such as foot and shoe size measurement, a measuring device for measuring the posture and in particular the statics, may be used within the context of a diagnosis D. The consultant then identifies a specific foot type, with or without structural and/or functional disorders and/or with or without impaired statics.
(29) Structurally healthy is denoted in the flow diagram by SG, structural impaired by SK, functionally healthy by FG, and functionally impaired by FK.
(30) If it is ascertained that the feet are both structurally and functionally healthy SG, FG, it is firstly determined that a standard footbed SFB comprising an orthopaedic footbed 1 having a planar base surface 4 according to
(31) If one of the feet 16 is structurally healthy SG and functionally impaired FK, the type of the functional disorder is firstly determined in a further step DFK and a correspondingly individualized orthopaedic footbed 1 comprising a functional zone 8 individually provided for the disorder is selected. A functional disorder of this kind may be talipes valgus for example, the functional zone 8 in this case being the talipes valgus correction surface 9 shown in
(32) The orthopaedic footbeds 1 shown in
(33) If the diagnosis identifies both a structurally impaired SK foot 16 and a functionally impaired FK foot 16, a recommendation is made for a medical examination (EAU), and optionally a recommendation is made for wearing a standard footbed SFB until the results of the medial examination are available. A subsequent follow-up appointment KT may in addition also be arranged.
(34) The advantage of the proposed solution is considered to be that the health of the feet and the posture of a very large number of people can be improved, or the likelihood of the development of disorders and postural defects can be reduced, by means of preventative measures, using simple means basic knowledge of specialists which can be conveyed in specialist seminars for example. In this case, the invention makes use of the advantage that the orthopaedic footbeds 1 are kept available not specifically depending on the individual foot 16, but instead in a person-independent manner for various foot disorders, in the form of a range. The person-specific manufacture of the insoles used hitherto firstly requires production of an individual footprint, on the basis of which the insole is then manufactured. The person could therefore not take the insole immediately, but said insole instead had to be manufactured in an orthopaedics workshop that is specialized in this. As a result, the insole could be collected and worn only after a waiting time of several days or weeks. Overall, providing the insoles was thus associated with corresponding time expenditure and manufacturing outlay, resulting in a drop in the acceptance of wearing insoles. Insoles were worn only if already serious, medically identified disorders of the function and structure of the feet were already present.
(35) According to the method according to the invention for providing the footbed, the orthopaedic footbeds 1 are manufactured in large numbers, having various foot contact surfaces 3 which, although not person-specific, are instead type-specific, i.e. are adapted to the type of the foot 16 by means of the planar base surface 4 or by means of the combination of the base surface 4 with different functional zones 8 that are specially adapted to the structural and functional disorders, and thus allow for significantly more healthy walking. Since the footbeds 1 are tested on-site and can be taken away immediately after being selected, the outlay for obtaining a footbed 1 of this kind is significantly reduced, as a result of which a significantly larger number of people can be convinced to wear footbeds 1 of this kind, at least as a trial. As a result, the health of the population can be significantly improved, on average, by the increased acceptance of orthopaedic footbeds 1, which footbeds can be described as a new biointerface owing to the special distribution of the pimples 5. The distribution of the pimples 5 essentially achieves a biointerface which is used to stimulate the stimulation points of the sole of the foot during walking, and thus to strengthen the biotensegrity system. As a result, the person's normal walking movement itself is used for stimulating the biotensegrity system and for associated improvement of posture and gait.
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(37) The foot contact surface 3 comprising the pimples 5 provided thereon can be divided, in the same manner, into different regions in which the person comes into contact by the heel 102, the midfoot region 103, the ball of the foot 104 and finally with the toes 101 of the foot 16.
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(40) Both locally arranging pimples 5 having a greater hardness, and forming the base surface 4 so as to have a greater hardness and/or so as to be at a higher level locally result in the desired local stimulation effect on the sole of the foot being intensified. As a result, both the gait and the posture of the person can be positively influenced and corrected, since the perception in the sole of the foot leads to a postural change, in accordance with what is known as the vector addition model.
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(42) Furthermore,
(43) In the base surface 4, the orthopaedic footbed 1 comprises an EVA base layer 110 and an EVA cover layer 111 which are separated from one another by a stimulation layer 113. The EVA base layer 110 is covered, on the lower face, by a carrier layer 114, and the EVA cover layer 111 is covered, on the top face, by a functional tissue layer 112 having fluid-conducting and breathable properties, which layer simultaneously forms the foot contact surface 3. The EVA base layer 110, the EVA cover layer 111, the stimulation layer 113, the functional tissue layer 112, and the carrier layer 114 each have a constant thickness, such that the orthopaedic footbed 1 has a constant thickness in the region of the base surface 4, apart from the pimples 5 (not visible) which are arranged thereon.
(44) In the right-hand drawing, the EVA base layer 110 is of a greater thickness, in order to form the functional zone 8, while the thickness of the remaining layers is constant. The raising of the foot contact surface 3 in the region of the functional zone 8 is thus achieved merely by increasing the thickness in the EVA base layer 110. The thickening of the EVA base layer 110 is shown in the right-hand drawing, by the zone II of the EVA base layer 110 in the region of the functional zone 8, above the zone I.
(45) The functional tissue layer 112 is preferably formed by a breathable and fluid-permeable textile material, while the carrier layer 114 is formed by a wear-resistant plastics material, for example having a carbon effect.
(46) Both the EVA cover layer 111 and the EVA base layer 110 are manufactured from an EVA material, and virtually form the volume material of the footbed 1. The stimulation layer 113 is manufactured from a hard plastics material and defines the hardness of the footbed 1.
(47) The “heart of feet function” brought about by the orthopaedic footbed 1 according to the invention will be explained again, in greater detail, in the following.
(48) The sole of the foot is a blood and lymphatic pump and assists the return transport of the blood supplied by the heart. This return transport is brought about by the muscle-vein pump in the foot, formed by the vessels, the fasciae system, the bones and the muscles, together with gravity.
(49) Owing to the particular anatomical structure comprising the tissues encased in fasciae, natural movements and the pressure changes in the foot that are induced or stimulated by the footbed 1 according to the invention result in fluid-displacement effects owing to the constant change in tissue pressure gradients. When compressed and elongated, the pressure on the tissue portions protruding into the fasciae-encased chambers is significant, the alternating peaks and troughs of the pressure build-up brings about a pumping mechanism which is weakened but still present in the case of impaired venous and lymphatic vessels.
(50) The theory of the pumping movement in the sole of the feet of people can be explained as follows: The basis of the pumping movement is a grille having pressure gradients that are generated by deformation: Upon stretching, the pressure in the enclosed chambers increases owing to the movement of the connective tissue fasciae lines, and pressurized movement of the fluid takes place in a manner channelled from the foot to the centre of the body. If the movement of the grille recedes, the pressure gradient reduces again, resulting in fluid collecting in the chambers, between the grille elements. These movements alternate cyclically, as a result of which the body transports lymphatic and venous fluid from the narrowest tissue gaps to the heart, outside of vessels and in the smallest of vessels.
(51) The fasciae lines around each cell are thus inter alia also a person's “other heart”, which represents and is therefore responsible for the centripetal pumping movement, in the way in which the heart represents a large portion of the centrifugal pumping movement.
(52) The material of the “heart of feet” zone of the orthopaedic footbed 1 according to the invention, in portion 107 of
(53) The pressure increase results in expulsion of at least 20 to 40 cubic centimetres of blood and lymphs from the foot back towards the heart with each tread. Increasing the pressure relative to the orthopaedic footbed 1 without a “heart of feet” function significantly assists the venous and lymphatic return flow to the heart, in order to assist the insufficient, i.e. weakly pumping, venous and lymphatic vessels of the foot in their natural function.