EP1423153A1 - Coussin medical, en particulier coussin anti-escarres - Google Patents

Coussin medical, en particulier coussin anti-escarres

Info

Publication number
EP1423153A1
EP1423153A1 EP02754500A EP02754500A EP1423153A1 EP 1423153 A1 EP1423153 A1 EP 1423153A1 EP 02754500 A EP02754500 A EP 02754500A EP 02754500 A EP02754500 A EP 02754500A EP 1423153 A1 EP1423153 A1 EP 1423153A1
Authority
EP
European Patent Office
Prior art keywords
molecular sieve
active
medical
water
adduct
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Withdrawn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
EP02754500A
Other languages
German (de)
English (en)
Inventor
Werner Schunk
Michael Bruder
Karl-Heinz Krause
Gerhard Merkmann
Jörg Vortkort
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.)
Phoenix AG
Original Assignee
Intech Thueringen GmbH
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 Intech Thueringen GmbH filed Critical Intech Thueringen GmbH
Publication of EP1423153A1 publication Critical patent/EP1423153A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/44—Medicaments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/22—Lipids, fatty acids, e.g. prostaglandins, oils, fats, waxes
    • A61L2300/222—Steroids, e.g. corticosteroids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
    • A61L2300/406—Antibiotics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/42—Anti-thrombotic agents, anticoagulants, anti-platelet agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/428—Vitamins, e.g. tocopherol, riboflavin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/80—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special chemical form
    • A61L2300/802—Additives, excipients, e.g. cyclodextrins, fatty acids, surfactants

Definitions

  • the invention relates to a medical pillow, in particular anti-decubitus pillow, which is in particular multicellular.
  • foam pads DE 297 13 160 U1
  • gel pillows or pillows filled with plastic balls are used.
  • the preferred geometry of the cells is described in detail in US Pat. No. 4,698,864. Neoprene is mentioned as the preferred material in this patent.
  • the currently known inflatable pillows have one or more inflatable areas. Systems for the air exchange between the individual cells or for inflating the individual areas are described in the published documents WO 92/07492 A1 and WO 94/10881 A1.
  • the air exchange between the cells takes place through valves located on the underside of the cushion.
  • the individual areas are inflated by hoses and valve systems, which are preferably brought together at one point of the cushion for better operation.
  • the height and base area of the individual cells can be designed differently over the cushion area. Due to the coordinated geometry of the cells, it can be adapted to the body shape and body weight.
  • the published patent application WO 96/12426 A1 also describes an inflatable cushion which can be produced using the vacuum process or the hot-forming process.
  • Thermoplastic materials that can be processed using the aforementioned methods are used for this cushion.
  • These pillows are preferably made of the plastics polyethylene, polypropylene, polyester, nylon, polyvinyl chloride, Made of polyvinylidene and polyurethane.
  • the bottom of the deep-drawn cushion is closed with a film, for example by welding or gluing.
  • This pillow also consists of one or more areas that are inflated with air.
  • the air exchange system consisting of valves and hoses, is located on the underside of the cushion.
  • the geometry of the cells can vary in height and area.
  • the task now is to design a medical pillow, in particular an anti-decubitus pillow, in such a way that on the one hand the criteria mentioned above are taken into account and on the other hand the medical therapy spectrum is expanded.
  • the pillow at least in the area where there is contact with the skin, is equipped with an active membrane based on a skin-compatible matrix into which a molecular sieve is mixed, which is loaded with at least one active ingredient is, the molecular sieve / active substance adduct releases the active substance upon skin contact of the active membrane in connection with the transpiration water of the skin.
  • the medical cushion according to claim 2 is characterized in that the molecular sieve / active substance adduct additionally contains water of crystallization, in such a way that the molecular sieve is partially dehydrated with respect to a sufficient basic molar amount (m) of water of crystallization , wherein the molecular sieve with the reduced molar amount (nY) of water of crystallization is loaded with the active substance, so that when the active membrane comes into contact with the skin, water is adsorbed with desorption of the active substance, the crystal water content of the molecular sieve increasing.
  • m basic molar amount
  • nY reduced molar amount
  • the object of the invention is to provide a method for producing such a medical pillow.
  • the molecular sieve is loaded with at least one active ingredient to form the molecular sieve / active ingredient adduct;
  • the active membrane is assembled with the medical pillow.
  • the loading is carried out in particular under normal pressure in the presence of an inert gas, for example nitrogen, by means of a Mentermühle or Kugelmühle.
  • an inert gas for example nitrogen
  • the following process steps are expediently used in connection with partial dehydration: -
  • the molecular sieve with a sufficient basic molar amount (m) of water of crystallization is partially dehydrated at 100 to 500 ° C, preferably at 350 to 450 ° C, for several hours, preferably 2 to 6 hours;
  • the partially dehydrated molecular sieve is then loaded with the reduced molar amount (m ') of water of crystallization with at least one active substance to form the molecular sieve / active substance adduct.
  • the dehydration also takes place here in particular under normal pressure in the presence of an inert gas.
  • Figure 1 shows the adsorption / desorption mechanism based on two embodiments.
  • Fig. 2 shows the adsorption / desorption mechanism using two
  • the anti-decubitus pillow 1 with its main application in the hospital according to FIG. 1 comprises a cellular base body 2 and an active membrane 3.
  • a cellular base body 2 for example, dome pillows, foam pillows and geotextile pillows are used as base bodies.
  • the multi-cell inflatable pillows are of particular importance. With regard to structural and material details, reference is made to the prior art cited at the beginning.
  • the active membrane 3 in turn consists of the matrix 4, into which the molecular sieve active substance adduct 5 is mixed.
  • a sodium-aluminum-silicate of the formula is used as the molecular sieve
  • the molecular sieve / active substance adduct contains 5 water of crystallization ensures a corresponding moist environment. In this way, the desorption of the active ingredient Z by means of the solvent or dispersant water is facilitated. In addition, the moist environment creates ideal conditions for cell growth factors and also serves as an immune defense.
  • Exemplary active membranes are:
  • Antibiotic active membrane (against bacterial infections) Prednisolone active membrane (against inflammation) Vitamin A acid active membrane (against hornification) Antithrombotic active membrane (against thrombosis)
  • the molecular sieve is loaded with a uniform degree of dehydration with a first active ingredient Zi and a second active ingredient Z 2 , which are distinguished by a different loading level, so that the molecular sieve / active ingredient adduct 5 upon skin contact 6 of the active membrane 3 contains the active ingredients Zt and Z 2 sequentially releases what is shown by the different arrow strengths.
  • the two active ingredients have approximately the same molecular weight.
  • the molecular sieve has one Degree of dehydration of 70%. With a total loading level of 60% of the active ingredients Z- and Z 2 , Zi accounts for 40% and Z 2 20%. Due to the larger loading amount of the active ingredient Z is. released faster than the active ingredient Z 2 , combined with a delayed therapeutic effect.
  • An exemplary medical application in this sense would be the combination of an antithrombotic (Z- with an antibiotic (Z 2 )), which can also be used for the exemplary embodiment according to FIG. 2, which is now presented in more detail.
  • a first and second molecular sieves 11 and 12 are mixed into the matrix 10, which are of the same type but are distinguished by a different degree of dehydration, the following example being mentioned:
  • the degree of loading is approximately the same in each case.
  • the active ingredients Z 3 and Z 4 are released sequentially, which in turn is symbolized by the different arrow strengths.
  • the adduct 11 with the greater degree of dehydration will take up water more eagerly than the adduct 12.
  • the active ingredient Z 3 is released faster than the active ingredient Z 4 , in turn associated with a temporally staggered therapeutic effect.
  • the following parameters expediently apply to the active membrane 1 and 7: -
  • the adducts 5, 11 and 12 are distributed substantially uniformly within the matrix 4 and 10.
  • the adducts 5, 11 and 12 have a proportion of 2 to 20% by weight, preferably 5 to 10% by weight, based on the total mass of the active membrane 3 and 9.
  • the matrix 4 and 10 is a polymer material, in particular an elastomer, a thermoplastic elastomer or a thermoplastic. It is important in this context that these materials form a skin-compatible matrix.
  • the active membrane 3 and 9 has a layer thickness of 0.5 mm to 2 mm, preferably 1 mm.
  • the active membrane 3 and 9 can be covered with a removable protective film, which is then removed before use.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Materials Engineering (AREA)
  • Hematology (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Nursing (AREA)
  • Materials For Medical Uses (AREA)
  • External Artificial Organs (AREA)

Abstract

L'invention concerne un coussin médical (1), en particulier un coussin anti-escarres, ce coussin étant en particulier de structure multicellulaire. Ce coussin se caractérise en ce qu'il comprend, au moins dans la zone venant en contact avec la peau (6), une membrane active (3) à base d'une matrice (4) compatible avec la peau, dans laquelle un tamis moléculaire est mélangé, ce tamis étant chargé d'au moins une substance active (Z, Z1, Z2). Le produit d'addition tamis moléculaire/substance active (5) libère la substance active en cas de contact de la membrane active avec la peau (6) en conjonction avec la transpiration de la peau. D'après un mode de réalisation particulièrement avantageux de l'invention, ce coussin médical se caractérise en ce que le produit d'addition tamis moléculaire/substance active (5) contient en outre de l'eau de cristallisation de telle sorte que le tamis moléculaire est partiellement déshydraté en relation avec une quantité molaire de base (m) suffisante d'eau de cristallisation, le tamis moléculaire avec la quantité molaire réduite (m') d'eau de cristallisation étant chargé de la substance active (Z, Z1, Z2) de telle sorte qu'en cas de contact de la membrane active (3) avec la peau (6), de l'eau est adsorbée tandis que la substance active est désorbée, ce qui fait que la teneur en eau de cristallisation du tamis moléculaire augmente.
EP02754500A 2001-09-03 2002-08-08 Coussin medical, en particulier coussin anti-escarres Withdrawn EP1423153A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10142876 2001-09-03
DE10142876 2001-09-03
PCT/DE2002/002916 WO2003026708A1 (fr) 2001-09-03 2002-08-08 Coussin medical, en particulier coussin anti-escarres

Publications (1)

Publication Number Publication Date
EP1423153A1 true EP1423153A1 (fr) 2004-06-02

Family

ID=7697381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754500A Withdrawn EP1423153A1 (fr) 2001-09-03 2002-08-08 Coussin medical, en particulier coussin anti-escarres

Country Status (4)

Country Link
US (1) US6976281B2 (fr)
EP (1) EP1423153A1 (fr)
DE (1) DE10236363A1 (fr)
WO (1) WO2003026708A1 (fr)

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US10421587B2 (en) 2010-11-15 2019-09-24 Pacific Market International, Llc Beverage container closure
US8727176B2 (en) 2011-09-13 2014-05-20 Ignite Usa, Llc Seal mechanism for beverage container
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EP3038940A4 (fr) 2013-09-03 2017-06-28 Ignite USA LLC Récipient pour boisson de voyage pourvu d'un couvercle rabattable
USD742684S1 (en) 2013-09-06 2015-11-10 Ignite Usa, Llc Lid for travel beverage container
CA2936355A1 (fr) 2014-01-22 2015-07-30 Ignite Usa, Llc Recipient de boisson de voyage
USD748943S1 (en) 2014-06-12 2016-02-09 Ignite Usa, Llc Lid for beverage container
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Also Published As

Publication number Publication date
US20040049854A1 (en) 2004-03-18
DE10236363A1 (de) 2003-03-27
WO2003026708A1 (fr) 2003-04-03
US6976281B2 (en) 2005-12-20

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