NO772649L

NO772649L - SITTING OR LOCATION.

Info

Publication number: NO772649L
Application number: NO772649A
Authority: NO
Inventors: Hugo Martinus Hansen; Flemming Dahl
Original assignee: Hugo Martinus Hansen; Flemming Dahl
Priority date: 1976-07-27
Filing date: 1977-07-26
Publication date: 1978-01-30
Also published as: CA1045753A; DK144056B; DK336876A; ATA520677A; IE45533L; DE2732833A1; AU504213B2; BR7704857A; GB1540336A; ES461053A1; ZA774510B; IL52518A0; BE857186A; CH618342A5; IT1081614B; IL52518A; FR2359602A1; FR2359602B1; FI772164A; DE2732833B2

Description

"Sitte- eller liggeunderlag" "Sitting or lying surface"

SIDDE- ELLER LIGGEUNDERLAG.SEATING OR LYING COVERS.

Opfindelsen angår et sidde- eller liggeunderlag, hvis overflade er opdelt i overfladeelementer, som er koblet til et drivorgan på en sådan måde, at en del af elementerne bevæges nedefter fra udgangsstillingen til en mindre højde og derefter bevæges opefter ti-1 udgangsstillingen, hvorefter de resterende elementer bevæges nedefter og derefter opefter, hvorefter denne cyklus gentages. - The invention relates to a sitting or lying surface, the surface of which is divided into surface elements, which are connected to a drive in such a way that part of the elements are moved downwards from the starting position to a lower height and then moved up to the starting position, after which they remaining elements are moved downwards and then upwards, after which this cycle is repeated. -

Sådanne underlag anvendes til personer, der f.eks. på grund af lammelser til stadighed skal sidde eller ligge ned, og derfor er udsatfor at pådrage sig sidde- eller liggesår, med mindre pleie-personalet med passende, mellemrum hjælper de pågældende med at skifte stilling. Such bases are used for persons, where e.g. due to paralysis must constantly sit or lie down, and are therefore at risk of contracting sitting or lying sores, unless the nursing staff at appropriate intervals helps the persons concerned to change positions.

Et kendt underlag af den indledningsvis omhandlede art er kendtA known substrate of the type mentioned at the outset is known

fra dansk patent nr. 133.232, der omhandler et sidde- eller liggeunderlag- med overfladeelementer, der er monteret på stænger, der bevæges op og ned i en cyklus. Disse elementer er således placeret, at et nedsænket element er omgivet af fire elementer i udgangsstillingen. Dette bevirker, at der ikke finder tilstrækkelig side-værts bévægelse af understøtningspunkterne sted, da variation ligger i en forskydning fra ét punkt til det hosliggende punkt. Den opnå-ede massagevirkning er derfor ikke tilstrækkelig til at give den ønskede blodcirkulation, som er en betingelse for heling af sidde-eller liggesår. Endvidere er fladetrykket forholdsvis højt, da der ved nedsænkningen fjernes 5o% af understøtningen og kropsvægten understøttes af de resterende understøtninger. from Danish patent no. 133,232, which deals with a sitting or lying surface with surface elements, which are mounted on rods, which move up and down in a cycle. These elements are positioned so that a submerged element is surrounded by four elements in the starting position. This means that there is not sufficient side-to-side movement of the support points, as variation lies in a displacement from one point to the adjacent point. The achieved massage effect is therefore not sufficient to provide the desired blood circulation, which is a condition for healing bedsores or bedsores. Furthermore, the surface pressure is relatively high, as 5o% of the support is removed during the immersion and the body weight is supported by the remaining supports.

Det er opfindelsens formål at afhjælpe disse mangler og forbedreIt is the purpose of the invention to remedy these deficiencies and improve them

de kendte sidde- eller liggeunderlag, og dette opnås, når elementerne er anbragt på en sådan måde, at hvert nedsænket element er omgivet af seks elementer i udgangsstillingen således, at. de alle har den samme afstand såvel indbyrdes som til det nedsænkede centrale element. the known seating or lying surfaces, and this is achieved when the elements are arranged in such a way that each submerged element is surrounded by six elements in the initial position such that. they all have the same distance both between themselves and to the submerged central element.

Herved opnås for det første, at fladetrykket bliver nedbragt idet kun 25% af understøtningen nedsæhkes, hvorved de resterende 75% This achieves, firstly, that the surface pressure is reduced as only 25% of the support is lowered, whereby the remaining 75%

kan bære kropsvægten. Dette betyder en lettelse for personen, der sidder eller ligger, at fladetrykket kun stiger lidt. Endvidere giver denne placering af elementerne.en betydelig større variation af understøtningsmønsteret mellem de enkelte nedsænkninger, idet de 25%, der nedsæhkes, varieres mellem de resterende 75°/ °i således at. der er tre nedsænkninger mellem hver udgangscyklus. Denne store variation betyder en væsentligt forbedret massagevirkning, hvilket indebærer, at personer med sår ved brug af denne understøtning forventes at blive fuldstændigt helbredt.for sår. can bear body weight. This means a relief for the person, who is sitting or lying, that the surface pressure only rises slightly. Furthermore, this placement of the elements gives a significantly greater variation in the support pattern between the individual immersions, as the 25% that is immersed is varied between the remaining 75°/ °i so that. there are three dips between each output cycle. This large variation means a significantly improved massage effect, which implies that people with wounds when using this support are expected to be completely healed.

Ved at anvende den i krav 2 omhandlede montering af elementerne på stænger, kan man på en let og hensigtsmæssig måde bevæge elementerne ved hjælp af et drivorgan. By using the assembly of the elements on rods referred to in claim 2, the elements can be moved easily and expediently by means of a drive.

Endvidere er den i krav 3 og 4 omhandlede montering af elementerne af indbyrdes forskydelighed på stængerne medvirkende til en hidtil ukendt understøtning, idet hvert element i udgangsstillingen nu vil kunne føje sig efter kroppen og endvidere udligne fladetrykket således, at kroppen bliver fuldstændig ens understøttet over .bele laget af overfladeelementer. Dette udligner variationen i fladetryk, og vil føles som en stor lettelse for personen, der.herved bliver mindre belastet på særligt udsatte kropsdele, der ved de hidtil kendte understøtninger har skullet optage uforholdsmæssig stor vægt med sårdannelse til følge. Furthermore, the mounting of the elements referred to in claims 3 and 4 is mutually displaceable on the rods contributing to a hitherto unknown support, as each element in the initial position will now be able to follow the body and also equalize the surface pressure so that the body is completely equally supported above. bele made of surface elements. This balances out the variation in surface pressure, and will feel like a great relief for the person, who is thereby less stressed on particularly exposed parts of the body, which with the previously known supports have had to absorb a disproportionately large amount of weight resulting in the formation of wounds.

Opfindelsen vil i det følgende blive nærmere beskrevet under hen-visning til tegningen, hvor- In the following, the invention will be described in more detail with reference to the drawing, where

fig. 1 viser et udsnit at et sæde set fra oven i to under-støtningssituationer, fig. 1 shows a section of a seed seen from above in two support situations,

fig. 2 viser et delsnit gennem en stang med understøtnings-elementer., fig. 2 shows a partial section through a bar with support elements.,

På fig. 1 er vist- et eksempel på et sidde- eller liggeunderlag set fra oven. De enkelte understøtningselementer 1,2 er monteret på langs- eller tværgående stænger I, II, III, IV, der kan bevæges i forhold til en udgangsstilling med alle stængerne i samme niveau ved hjælp af et ikke vist drivorgan. Dette drivorgan bevæger stængerne på. en sådan måde, at hver fjerde stang', f.eks. alle stænger betegnet med I, til venstre på fig. 1 bevæges ned i forhold til udgangsstillingen, medens de resterende stænger forbliver i niveau. In fig. 1 is shown - an example of a sitting or lying surface seen from above. The individual support elements 1,2 are mounted on longitudinal or transverse rods I, II, III, IV, which can be moved in relation to an initial position with all the rods at the same level by means of a drive device not shown. This drive unit moves the rods. such a way that every fourth rod', e.g. all rods denoted by I, on the left in fig. 1 is moved down in relation to the starting position, while the remaining rods remain level.

Herved fremkommer et mønster, der udgøres af en kreds af seks elementer 2", der er.centreret omkring det nedsænkede element 1. Med punkteret-linie er et sådant mønster fremhævet på fig. 1, hvor det nedsænkede element 1 er skraveret. Ved hævning af stængerne med betegnelsen I og sænkning af f.eks. stængerne med betegnelsen II, se højre side på fig. 1, flyttes mønsteret såvel på langs som på tværs. Ved efterfølgende nedsænkning af stængerne betegnet med III og efterfølgende nedsænkning af stængerne med'betegnelsen IV, bevæges understøtningen således på en særdeles jævn og behagelig måde, hvilket sikrer den ønskede massagevirkning. This results in a pattern consisting of a circle of six elements 2", which are centered around the submerged element 1. Such a pattern is highlighted with a dotted line in Fig. 1, where the submerged element 1 is shaded. When raised of the bars with the designation I and lowering of, for example, the bars with the designation II, see the right side of Fig. 1, the pattern is moved both lengthwise and crosswise. By subsequent lowering of the bars designated with III and subsequent lowering of the bars with the designation IV, the support is thus moved in a particularly smooth and comfortable manner, which ensures the desired massage effect.

i'i-; vor ganet kan være af enhver kendt art såsom hydraulisk med oylind,er eller ved hjælp af en bælgindretning eller mekanisk ved hjælp af f.eks. vippearme eller kamskiver samt elektromagnetisk. i'i-; Our gate can be of any known type such as hydraulic with oylind,er or by means of a bellows device or mechanical by means of e.g. rocker arms or cam discs as well as electromagnetic.

Afstanden 3 mellem de enkelte elementer 1,2 er ens, som det er antydet, på fig. 1. Herved opnås en jævn fordeling af understøt-ningspunkterne. The distance 3 between the individual elements 1,2 is the same, as indicated in fig. 1. This achieves an even distribution of the support points.

De enkelte elementer 1,2 består af en skålformet underdel 7, somThe individual elements 1,2 consist of a bowl-shaped lower part 7, which

er fastgjort til stempelstangen 4 foroven. I underdelen er anbragt en eftergivelig overdel 8, der kan bestå af et luftfyldt lukket kuglelegeme med eftergivelig væg. Overdelen 8 er affladet for- is attached to the piston rod 4 at the top. A flexible upper part 8 is placed in the lower part, which can consist of an air-filled closed spherical body with a flexible wall. The upper part 8 is flattened for

oven. 9, for at elementerne.1,2 t.ilsammen kan danne en forholdsvis plan understøtningsflade, hvor hvert' element kan optage tryk over hele understøtningsfladen 9. above. 9, so that the elements 1,2 together can form a relatively flat support surface, where each element can absorb pressure over the entire support surface 9.

For at sikre den eftertragtede ligelige fordeling af kropsvægten på elementerne, er stængerne indrettet som vist på fig. 2. Stængerne I-IV er hule og forsynet med et antal cylindre 6, der hver In order to ensure the desired equal distribution of body weight on the elements, the bars are arranged as shown in fig. 2. The bars I-IV are hollow and provided with a number of cylinders 6, where each

har et stempel 5 med en stempelstang 4-, hvorpå elementet 1,2 er fastgjort. Der er fyldt væske f.eks. i form af hydraulikolie pa stængerne, således at alle elementerne ved start har samme afstand A fra stængerne med stemplet 5 f.eks. midt i cylinderen 6. has a piston 5 with a piston rod 4-, on which the element 1,2 is fixed. Liquid is filled, e.g. in the form of hydraulic oil on the rods, so that all the elements at the start have the same distance A from the rods with the stamp 5, e.g. in the middle of cylinder 6.

For at sikre at væsken ikke siver ud af cylinderen 6 ude.nom stemplet 5>kan der til cylindervæggens indvendige side•væsketæt være fastgjort en almindelig kendt eftergivelig membran af f.eks. gummi, der er uigennemtrængelig for væske. Denne,membran ligger an mod stemplets underside og kan følge stemplets op- og nedgående bevægelse uden at hæmme denne bevægelse. Herved sikres, at denne del af systemet er fuldstændig væsketæt og samtidig, at stemplet kan bevæges frit op og ned, idet man ikke behøver at forsyne stemplet med tætningsringe såsom O-ringe. In order to ensure that the liquid does not seep out of the cylinder 6 outside the piston 5>, a commonly known resilient membrane of e.g. rubber, which is impermeable to liquid. This membrane rests against the piston's underside and can follow the piston's up and down movement without inhibiting this movement. This ensures that this part of the system is completely liquid-tight and, at the same time, that the piston can move freely up and down, as there is no need to supply the piston with sealing rings such as O-rings.

Ved nedpresning af nogle elementer, f.eks. ved at en person sætter sig på understøtningen, presses olien over i de øvrige cylindre, hvis elementer herved hæves til anslag mod kroppen. Det hydrauliske system er lukket. Herved optages en ensartet kropsvægt på elementerne monteret'på samme stang, og fladetrykket bliver reduceret til,et hidtil ukendt lavt niveau. Praksis har vist, at medens man med en legemsvægt på 7o kg. udsættes for et fladetryk på ca. 35 g/cm<2>When pressing down some elements, e.g. when a person sits on the support, the oil is forced into the other cylinders, the elements of which are thereby raised to abut against the body. The hydraulic system is closed. In this way, a uniform body weight is recorded on the elements mounted on the same rod, and the surface pressure is reduced to an unprecedented low level. Practice has shown that while one with a body weight of 70 kg. exposed to a surface pressure of approx. 35 g/cm<2>

i siddestilling nedbringes fladetrykket ved hjælp af opfindelsen til mellem lo og 15 g/cm p ved et elementantal på mellem 5oo og 6oo på et sæde. in the sitting position, the surface pressure is reduced by means of the invention to between 10 and 15 g/cm p with an element number of between 5oo and 6oo on a seat.

I en anden udførelsesform består hvert element'af en stationær, eftergivelig cylinder, en såkaldt rullemembran, hvilken membran kan være fyldt med luft eller væske. Por at danne et lukket systera, er alle membraner på én række, svarende til elementerne på eh,stang, forbundet ved hjælp af f.eks. en slange eller et rør. Ved at lade oversiden af membranen udgøre selve understøtningen og påvirke membranen ved en indpresning, hæves oversiden op til dannelse af et element i udgangsstillingen, medens en fjernelse af påvirkningen vil resultere i en nedsænkning af overfladen og dermed elementet. Herved skabes et lækagetæt system, der sikrer brugeren mod risiko for udsivning og dårlig fuhktion af underlaget. In another embodiment, each element consists of a stationary, flexible cylinder, a so-called rolling membrane, which membrane can be filled with air or liquid. In order to form a closed systera, all membranes in one row, corresponding to the elements on the rod, are connected by means of e.g. a hose or pipe. By letting the upper side of the membrane form the actual support and influencing the membrane by pressing in, the upper side is raised up to form an element in the initial position, while removing the influence will result in a lowering of the surface and thus the element. This creates a leak-proof system, which protects the user against the risk of seepage and poor operation of the substrate.

Claims

1. Sitting or lying surface, the surface of which is divided into surface elements (1,2), which are connected to a drive device in such a way that a part of the elements (1) is moved downwards from the starting position to a lower height and then moved upwards to the starting position, after which the remaining elements (2-) are moved downwards and then upwards, after which this cycle is repeated, characterized by the fact that the elements (1,2) are arranged in such a way that each submerged element (l) is surrounded by six elements (2) in the starting position so that they all have the same distance (3) both between themselves and to the bottom lowered central element (l).

2. Substrate according to claim 1, characterized in that the surface elements (1,2) are mounted on rods (I-IV), which are connected to the drive member.

3. Substrate according to claim 2, characterized in that a number of elements (1,2) are mounted on each rod (I-IV) in such a way that the distance (A) of the elements (1,2) from the rod can be varied continuously and so that the sum of the distances to the rod remains constant.

4-, Substrate according to claim 3, characterized in that each element (1,2) is attached to a piston rod (4) whose piston (5) slides in a hydraulic cylinder (6) on the rod (I-IV), which cylinder (6) is hydraulically connected with the other cylinders (6) on the rod (I-IV) to form a closed hydraulic system.