ES2356440A1 - Pressing flexible sheet and procedure for its preparation. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Presser flexible sheet, and procedure for its preparation. This presser flexible sheet is applicable to a template for the sole of the foot, comprising adjacent flexible cavities (2) occupied by fluid and interconnected by means of valve tubes (4) defining longitudinal channels (11) provided internally with elements spring (10), some rods (8) and some stops (7) or grids limiting the displacement towards the cavities (2) of said rods. The procedure comprises obtaining a negative of the footprint of soft consistency and scarce hardness, whose surface presents high areas, in correspondence with areas of maximum impact and other thin areas, with little or no support; attaching said soft sheet in the area of its eminences, to a hard sheet, obtaining a definitive template with soft and hard parts. (Machine-translation by Google Translate, not legally binding)

Description

Flexible presser sheet and procedure for its elaboration.

Object of the invention

The present invention as explained in the set forth in this specification, refers to a improvement in the design of a flexible sheet such as described in patent P200601693 ES, assessing the pressures mechanically and visually; making subsequent molds with her and the consequent use primarily for medical purposes and that can mitigate any risk to the skin of its owner.

The invention also concerns a procedure for preparing said flexible sheet applicable to a template for the sole of the foot.

Background of the invention

The sole of the foot presents quite frequency alterations, produced mainly by pressures excessive and repeated in some areas of said plant. At market there are numerous devices that detect both pressures static as dynamic, some are mechanical devices and others electronic that inform the specialist about the tread, these knowledge pose problems that you have to solve later the foot technician, usually counting on a time and some limited means.

Brief Description of the Invention

The device of my invention provides a mechanical, simple and fast way a vision first of how produces the tread of a subject under study, with a template of easy implantation in a shoe, sports or flip flop and after some walking cycles or steps, in the left footprint we will see some valleys corresponding to the areas of maximum repeated impacts and some raised areas where the foot does not support or hardly does. A skilled technician in the field can get a quick glimpse, the vision of a fairly approximate average of the pressures plantar dynamics in the different areas of the sole each person measured, being able to later, again and automatically reuse said sheet. This footprint can be easily obtained the negative mold in which high areas are appreciated than in this negative correspond to the areas of maximum impact and one zones very thin corresponding to areas of zero or poor support, the material used for the negative is usually of low hardness and excellent memory; with methods frequently used in the market (pedologists, orthopedics, prosthetics etc.), for example of silicone; negative can be saved in the subject's history to study.

Another possibility of this sheet with cavities is to generate in many cases the final template that the subject will subsequently use to compensate for excessive pressures; thus, covering the negative to its highest zones, which as I have referred to corresponds to the areas with the greatest plantar impact, with a harder material, this summation sheet (softer soft) It can serve us in many subjects under study, as a template definitive and in some cases, at least serve as a template Definitive for your metatarsal areas.

The areas without support or with less support are they will raise more and this will make the sole of the foot enjoy greater support surface, lift and stability. On the contrary in areas of maximum impact, the height will have decreased and the sheet Soft memory of excellent memory will absorb these impacts.

In an exemplary embodiment the device of my invention is constituted in a flexible sheet (1) formed by cavities (2) that communicate with each other through tubes (3) located at the bottom, these tubes have about valve elements (4). The cavities and the tubes that intercommunicate are occupied by a fluid of known viscosity (5). When one of the cavities (2) exceeds one predetermined pressure (6) its fluid (5) is transferred between contiguous cavities, increasing or decreasing the volume of said cavities in inverse proportion to the pressures (6) received by the different cavities (2) from its upper face. Deformation of volume of the different cavities (2) is mainly in the sense vertical, both down and up. The tubes (3) to your instead they go on top of a bottom laminated polymer or on a sole.

The tubes (3) are of material with sufficient resistance to withstand intracavitary pressures, usually of polymeric materials.

Each tube (3) intercom cavity with cavity contiguous with each other (2), gathering several tubes under one cavity may be separated within the hollow of each cavity or all interconnected with each other radially.

Bidirectional valve elements (4) they are conformed by the tubes (3), in whose interior it moves in both directions a spring element (10) usually of nature metallic or polymeric that closes in its contour or outer boundary (17) the inner walls of the tube, preventing the fluid from leaving by these contours. Said tube (3) has at its ends a stop or a grid (7) that is located in the tube itself or beyond inside the flexible cavity where the ends of the springs and the internal stem of the spring (8), this prevents compress said spring in excess and those supports depend on the direction in which the pressure (A ') inside the tube (3) predominates. On Both Sides from the center of the tubes, in its internal walls there are channels longitudinal (11) leading to the end of the tube; when the item spring has deformed to a predetermined point the fluid (5) will be introduced through these channels (11) according to the direction of the tube that the pressure predominates reaching the opposite chamber.

When a certain pressure (6) is reached by the external and superior pressor action on the sheet of a certain cavity (2), the fluid that acts in any of the tubes (3) of said cavity pushes the spring element (10) of each tube (3) forcing it to reach the stop (7) on the opposite side in each contiguous cavity (2), this allows said element to deform spring (9) and the channels of the internal walls of the tube and the fluid from a cavity (2) is transferred to its contiguous ones. Again when the foot oscillates and stops reaching the pressure (6) By default, the channels (11) of the tubes are inaccessible to the fluid (5) when closing the passage to said fluid through the external limits of the spring (17), leaving the height of the cavity (2) where that certain pressure (6), reduced; Y in contiguous cavities (2) where this has not been reached pressure (6), the heights of the cavities (2) will be increased, having received part of the fluid transfer. This situation of change remains stable during the foot swing, until new enough pressures appear to alter this situation of equilibrium This succession of repeated pressures after a sufficient number of steps, the flexible sheet will give us an average quite approximate of the pressures in each of the zones by example of the sole of one foot after walking, because not always in similar conditions, the tread is the same in the same person.

In order to achieve a plantar footprint valued with the naked eye, that is the average of the pressures produced by the footprints of a person, after walking with the flexible sheet a certain time, and then Automatically reuse another person.

Being able to get the mold or negative directly from said footprint produced and even elaborate directly the complete template from said mold, in other occasions getting at least the final template of the area metatarsal with subsequent adaptations of the heel area, fingers and plantar arches.

This same result can be achieved. using at least a double communication between two cavities contiguous, so that between the adjacent cavities a tube with one way valve and no return; the other communicator tube of the same contiguous cavities would be unidirectional, no return and in the opposite direction.

For a better understanding of what is described in the This report is accompanied by several drawings, which only as an example they represent some practical cases for the realization of the sheet flexible pressor.

Description of the drawings

Figure 1. Tube (3) in longitudinal section that communicates two adjacent cavities (2), which forms a device valve (4), here with elastomeric spring (10) and stops (7) located at both ends of each tube with channels in its wall internal (11).

Figure 2. Longitudinal section tube that communicates two contiguous cavities, which forms a valve device, here with elastomeric spring contracted (9) by the action of the internal pressure (6) of the fluid that occupies it (5), in one of the senses, due to increased pressure in one of the cavities adjoining

Figure 3. Tube (3) in longitudinal section that communicates two adjacent cavities, which forms a valve device (4), here with a metal spring (10) with its spring rod (8) and with a spring limit (17) that closes by its outer contour in contact with the internal contour of the tube, the passage to the fluid is normally closed until, due to the intensity of the pressure, this spring limit exceeds the channels
them.

Figure 4. Longitudinal section tube that communicates two contiguous cavities, which forms a valve device, here with contracted metal spring (9) with its stem (8) settling at its top.

Figure 5. Flexible cavity sheet Hexagonal contiguous or attached, seen in elevation in this figure there are five of them complete somewhat deployed (13) for the better visualize them, with a central hexagonal cavity with more laces dense, and two upper and lower half cavities; from up to down the hexagonal cavity is seen first, under the duct sheet grouped (16) in zones and below the sheet of cords (12).

Figure 6. Flexible cavity sheet hexagonal (1) contiguous or attached perspective views by its superior convexity, which is where it receives the different pressures or plantar impacts, in this example the cavities are shaped hexagonal and are joined together by their base.

Figure 7. Sheet attached to the sheet of the Figure 6 in this case by its lower or base portion, that is, to the concavities sheet of the (Fig. 6), with groups of ducts grouped by zones.

Figure 8. Most basal lamina, with laces in its upper face (12) starting from a central point as a radii under each hexagonal cavity, these cords are attached to the sheet of Figure 7 in this case by its lower or base portion, that is, to the sheet with ducts grouped by zones to what separate and form independent triangular cavities (14) and incommunicado with each other for the fluid and only communicate with the adjacent triangular cavity that matches the contact area of two hexagonal cavities of the upper zone.

In Figure 9. It is like the sheet of (Fig. 8) in which the radial cords (12) allow communication to the fluid between all triangular cavities of said base. In this In case the fluid does not need to pass between the adjacent cavities hexagonal to pass to the farthest cavities.

Description of the preferred invention

The device of my invention is a sheet flexible (1) formed by attached cavities (2) that communicate each other by means of ducts (3) located in its lower part. The cavities and the intercommunicating ducts are occupied by a fluid of known viscosity. When in any of the cavities (2) the pressure (6) of its contiguous is exceeded this fluid it is transferred between said adjacent cavities, being fundamentally its viscosity which opposes the passage of the fluid by the mentioned conduits, creating an important resistance to said step; increasing or decreasing the volume of these cavities in inverse proportion to the pressures (6) received by the different cavities (2) from its upper face. The deformation of the volume of the different cavities (2) is mainly vertically, both down and up.

Again when you swing your foot and stop having pressures (6) on the sole of the foot and on the flexible sheet, The heights and volumes of the cavities (2) remain stable. This situation remains until the appearance of new pressures. variables capable of altering said equilibrium situation.

The ducts are usually located in the lower area of the walls separating the cavities, by example with two hard sheets with channels or grooves on their faces contact, which would act as small conduits that would communicate the cavities with each other or depositing particles between surfaces hard in touch.

Also in another example, the ducts are grouped by zones in a sheet more basal to the cavity sheet flexible hexagonal (13) interconnect hexagonal cavity with contiguous hexagonal cavity, through triangular chambers lower (14) also completely occupied by said fluid. There are several lower triangular chambers, in this example six by each upper hexagonal cavity and each chamber is communicated with said upper hexagonal cavity by a group of ducts, these cameras are separated and isolated from each other by cords radial under the hollow of each cavity, communicating the fluid only between the lower triangular chambers attached than in the upper zone coincide, with the union of two cavities hexagonal townhouses.

Alternatively they can be intercommunicated. all lower chambers with each other.

To get the result of the last two Examples, I use several polymer sheets, (Thus: polypropylene polyethylene, urethane, silicone etc.) to the top sheet I give Shape of hollow hexagonal cavities attached, with faces convex looking up, where the sole of the foot will affect, under this first sheet of hexagonal cavities I place another sheet which can be made of polymer or metal, with ducts grouped in zones; finally to communicate the hexagonal cavities with each other, I place a more basal sheet, with laces on its upper face that they start from a central point as a radius under each cavity hexagonal, these cords are attached to the sheet with ducts grouped by zones to which it separates in its inferior situation and form triangular chambers independent and isolated from each other for the fluid and only communicate with the triangular chamber adjacent, which coincides between adjacent hexagonal cavities from the upper zone forming two triangles in the lower zone communicated with each other or rhombus.

Here the ducts are grouped, but they can be uniformly distributed by each triangular chamber.

The materials have sufficient strength to withstand plantar pressures, usually of materials polymeric

This succession of repeated pressures after a sufficient number of steps will give us a fairly average approximate of the pressures in each of the zones for example of the sole of one foot after walking, because not always in conditions similar, the tread is the same in the same person.

In order to achieve a plantar footprint that is the average of the pressures produced by the footsteps of the foot of a person, after walking with them a certain time and assess these pressures by observing their surface or with any height meter, applied to said sheet; and then be able Use them another person.

Being able to get the mold in negative directly from said footprint produced and even elaborate directly the complete template from said mold, in other occasions getting at least the final template of the area metatarsal with subsequent adaptations of the heel area, fingers and plantar arches.

Flexible hexagonal cavities and chambers are occupied by the fluid, but for the fluid to can distribute among them, initially we put all Flexible hexagonal cavities with a smaller volume.

The pressures that originate later after the march, of smaller amount, so when sitting etc. Do not generate significant changes in the final template.

Claims (6)

1. Presser flexible sheet, applicable to a foot sole template, said sheet (1) comprising adjacent flexible cavities (2) occupied by a fluid and intercommunicated with each other by means of valve devices that close the passage to the fluid (5) while lower pressures act at a preset value, said cavities modifying their volume when deforming to contract, stably upon receiving plantar pressures during the march, characterized in that said cavities (2) are intercommunicated by valvular tubes (4) that define longitudinal channels (11) internally provided with spring elements (10), stems (8) and stops (7) or grilles limiting the movement towards the cavities (2) of said stems (8). 2. Flexible pressor sheet according to claim 1, characterized in that the springs of said valve tubes (4) are metallic or polymeric. 3. Procedure for the elaboration of a flexible presser sheet, applicable to a sole for the sole of the foot, obtained from a surface with eminences and valleys that records the plantar pressure after the march characterized in that it comprises depositing a sheet of soft consistency with low hardness on said surface and the face of said contact provides, once separated, a negative mold, with a surface having elevated areas corresponding to areas of maximum impact and other thin areas, of little or no support; subsequently to this surface with soft eminences a hard sheet is added obtaining the final template. 4. Method according to claim 3, characterized in that the zones that on said surface obtained from the plantar pressure have valleys generate corresponding zones in the final template that are characterized by having a greater amount of soft material and little hard material. 5. Method according to claim 3, characterized in that the areas that on said surface obtained from the plantar pressure have elevated areas generate in the final template a greater amount of hard material and little soft material. 6. Method according to claim 6, characterized in that the material used for the negative is silicone that provides poor hardness and excellent memory.