EP1954191A2 - Procede pour determiner les effets physiopathologiques exerces par un siege ou un lit sur une personne, procede pour determiner des effets biomecaniques de sieges et de lits et procede de production d'un support - Google Patents

Procede pour determiner les effets physiopathologiques exerces par un siege ou un lit sur une personne, procede pour determiner des effets biomecaniques de sieges et de lits et procede de production d'un support

Info

Publication number
EP1954191A2
EP1954191A2 EP06829266A EP06829266A EP1954191A2 EP 1954191 A2 EP1954191 A2 EP 1954191A2 EP 06829266 A EP06829266 A EP 06829266A EP 06829266 A EP06829266 A EP 06829266A EP 1954191 A2 EP1954191 A2 EP 1954191A2
Authority
EP
European Patent Office
Prior art keywords
body region
pad
determined
impairments
sitting
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.)
Withdrawn
Application number
EP06829266A
Other languages
German (de)
English (en)
Inventor
Gerhard Silber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1954191A2 publication Critical patent/EP1954191A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/123—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for beds or mattresses
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for chairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A61B5/447—Skin evaluation, e.g. for skin disorder diagnosis specially adapted for aiding the prevention of ulcer or pressure sore development, i.e. before the ulcer or sore has developed
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6892—Mats
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05715—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with modular blocks, or inserts, with layers of different material
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4504—Bones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4519—Muscles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/34—General characteristics of devices characterised by sensor means for pressure

Definitions

  • the invention relates to a method for determining the pathophysiologically relevant impairments exerted on a person by a sitting or lying system. Furthermore, the invention relates to a method for determining biomechanical effects of sitting and lying furniture according to the preamble of claim 12. Finally, the invention relates to a method for producing an elastic pad.
  • the invention has for its object to provide methods that affect the physical regions of humans pathophysiologically relevant impairments of Wegg. Medystemen and biomechanical effects of sitting and lying systems to determine to create preferably sitting or lying systems, especially mattresses, which provide the greatest possible comfort, in particular pressure ulcers prevent and the production of elastic documents.
  • a method for achieving this object comprises the measures of claim 1. Accordingly, by imaging methods, the geometries of each relevant Body regions (predilection sites) in the unloaded or undeformed state (reference or reference configuration) and loaded or deformed state (instantaneous configuration) detected. The mechanical stresses, distortions, deformations, forces, but also thermal influences, etc., are not measured, but on the basis of the recorded geometries of the respective body regions as well as an experimentally determined in vivo force-displacement curve of the respective body regions by means of numerical programs (FEM). calculated. This is preferably done on a subject (in vivo).
  • FEM numerical programs
  • limit values can be defined, exceeding which there is a pressure ulcer or perceived as an uncomfortable side effect when sitting or lying.
  • the tensions can be calculated and compared with limits given in nursing science and medicine. Conversely, the statement can be made that there is no risk of decubitus on forces below the limit values or the sitting and lying system is also perceived as pleasant by healthy persons.
  • the bearing forces exerted by the at least one selected body part on the seat or lying system to be tested, in particular a mattress thereof are determined. This is preferably done by an area sensor in the form of, for example, a sensor mat.
  • the influences, or impairments of mechanical or optionally also of thermal type, which occur in the interior of the body part, in particular the deeper tissue layers are determined, which are determined by reconstructions.
  • the resulting mechanical stresses, deformations, distortions and / or forces or the like in the body part can now be checked to see whether they exceed a perceived as uncomfortable or leading to a pressure ulcer risk limit or remain below.
  • FIG. 2 Measurement program for detecting mechanical properties of the gluteal region (gluteus), namely path-time diagram / path-controlled process (FIG. 2a), force-time diagram / response (FIG. 2b), force-displacement diagram (FIG. 2c)
  • FIG. 3 MRT sequence, namely designation of fatty tissue, muscle and indentereinduck (FIG. 3 a) as well as geometric quantities for material identification (FIG. 3 b),
  • FIG. 7 shows CAD data for mattresses, namely a single-layered mattress (FIG. 7a) and a three-layered profiled mattress (FIG. 7b), FIG.
  • Fig. 11 iliac leaflets of the human buttocks as the main support points (arrows) of the gluteal load
  • a mattress of a sitting or lying system exercises. It is considered such body parts or body regions that are charged in a special way and / or influenced when the person rests on the sitting or lying system, such as particularly sensitive, especially decubitus prone regions (predilection). These are preferably, but not exclusively, body regions of the head, shoulder and / or coccyx region, the elbow and / or the heels.
  • Stress, strain and / or distortion fields are determined in the soft tissue networks of the body regions or body sites used, namely skin, adipose tissue, muscle and / or bone.
  • the interaction of the predilection points with the preferably elastic pad of the sitting and lying system is determined.
  • the sitting or lying system or just a mattress of the same is now charged, which need not happen in vivo.
  • the burden of a fully relaxed mattress takes place.
  • pressure measurements are made between the bearing or contact surfaces and a model.
  • These pressure measurements are preferably made by area sensors, such as a sensor mat, placed between the mattress and the model on the or each support surface of the model and mattress.
  • the model can be a person's model, called a model body. So there is no living person use. However, it is also conceivable to use parts of models of a person as a model body. In principle, however, a living person can also be used.
  • limit values of the influences or impairments in the deeper tissue layers of the investigated body regions can be determined or determined with regard to absolute values and their penetration into the depth of the tissue layers at the point of consideration.
  • the tested seat or seat Bedding system as comfortable or is suitable, Drucküborule to prevent decubitus.
  • a determination of the open material parameters in (1) or (2) or (3) can then be accomplished by adapting the force-compression relation to the experimental force-displacement data by means of suitable numerical optimization routines [5, 7, 8] ,
  • the material parameters in (1) or (2) or (3 ) can be indexed with "P for adipose tissue and" A / T for muscle.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Educational Administration (AREA)
  • Computational Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Algebra (AREA)
  • Educational Technology (AREA)
  • Dermatology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Nursing (AREA)
  • Pulmonology (AREA)
  • Optics & Photonics (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

Le risque d'escarre de décubitus chez les malades et les personnes nécessitant des soins est élevé. Ce phénomène est dû généralement à l'inadaptation des sièges et des lits, en particulier des matelas. Par ailleurs, les personnes bien portantes recherchent également des sièges et des lits confortables. Jusqu'à présent, seule la pression d'appui exercée sur les matelas par au moins une partie du corps de la personne assise ou alitée était mesurée dans le cadre du développement de nouveaux matelas, ce qui ne permettait pas de tirer des conclusions suffisantes concernant le caractère adéquat des matelas. Selon l'invention, les lésions occasionnées par les matelas dans des couches tissulaires profondes d'une personne sont déterminées par exemple par examen des régions corporelles à risque à l'aide de l'imagerie par résonance magnétique. Les éléments de connaissance ainsi obtenus sont utilisés lors de la conception et de la réalisation de matelas principalement.
EP06829266A 2005-12-02 2006-12-04 Procede pour determiner les effets physiopathologiques exerces par un siege ou un lit sur une personne, procede pour determiner des effets biomecaniques de sieges et de lits et procede de production d'un support Withdrawn EP1954191A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005057885 2005-12-02
DE102006006105A DE102006006105A1 (de) 2005-12-02 2006-02-10 Verfahren zur Ermittlung der von einem Sitz- bzw. Liegesystem auf eine Person ausgeübten pathophysiologischen Beeinträchtigungen und Verfahren zur Ermittlung biomechanischer Wirkungen von Sitz- und Liegesystemen
PCT/EP2006/011612 WO2007062873A2 (fr) 2005-12-02 2006-12-04 Procede pour determiner les effets physiopathologiques exerces par un siege ou un lit sur une personne, procede pour determiner des effets biomecaniques de sieges et de lits et procede de production d'un support

Publications (1)

Publication Number Publication Date
EP1954191A2 true EP1954191A2 (fr) 2008-08-13

Family

ID=37865621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06829266A Withdrawn EP1954191A2 (fr) 2005-12-02 2006-12-04 Procede pour determiner les effets physiopathologiques exerces par un siege ou un lit sur une personne, procede pour determiner des effets biomecaniques de sieges et de lits et procede de production d'un support

Country Status (3)

Country Link
EP (1) EP1954191A2 (fr)
DE (1) DE102006006105A1 (fr)
WO (1) WO2007062873A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005983A1 (de) * 2010-01-28 2011-08-18 Audi Ag, 85057 Verfahren und Vorrichtung zum Ermitteln einer Eigenschaft eines Sitzes
CN103169477B (zh) * 2013-02-01 2014-08-20 安徽农业大学 一种无干扰睡眠的睡姿脊柱形态测试方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050165284A1 (en) * 2002-03-25 2005-07-28 Amit Gefen Method and system for determining a risk of ulcer onset
NL1020839C2 (nl) * 2002-06-12 2004-01-08 Medavinci Dev B V Inrichting en werkwijze voor het controleren van een diabetische voet.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007062873A2 *

Also Published As

Publication number Publication date
WO2007062873A3 (fr) 2007-11-15
WO2007062873A2 (fr) 2007-06-07
DE102006006105A1 (de) 2007-06-14

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