WO2008078105A2 - Dispositif de contention ou d'immobilisation - Google Patents

Dispositif de contention ou d'immobilisation Download PDF

Info

Publication number
WO2008078105A2
WO2008078105A2 PCT/GB2007/005003 GB2007005003W WO2008078105A2 WO 2008078105 A2 WO2008078105 A2 WO 2008078105A2 GB 2007005003 W GB2007005003 W GB 2007005003W WO 2008078105 A2 WO2008078105 A2 WO 2008078105A2
Authority
WO
WIPO (PCT)
Prior art keywords
splinting device
splinting
core material
envelope
core
Prior art date
Application number
PCT/GB2007/005003
Other languages
English (en)
Other versions
WO2008078105A3 (fr
Inventor
Benjamin Chang
Original Assignee
Benjamin Chang
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 Benjamin Chang filed Critical Benjamin Chang
Publication of WO2008078105A2 publication Critical patent/WO2008078105A2/fr
Publication of WO2008078105A3 publication Critical patent/WO2008078105A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/04—Plaster of Paris bandages; Other stiffening bandages

Definitions

  • the present invention relates to a splinting or immobilisation device, but not exclusively, to a device for managing fractures or orthopaedic problems especially in relation to immobilising joints or long bone in trauma or orthopaedic surgery.
  • a splinting device comprising a load bearing material which softens to enable shaping within the range of 30 0 C to 15O 0 C and an integral or separate means for heating the device to the softening temperature. Accordingly it is the inventor's purpose to provide a lighter weight splinting or immobilisation device comprising a strong core/load bearing heat softenable substance which may be physically changed in shape repeatedly when heated and an optional flexible envelope for it. It is the intention that the desired change in shape will usually be accomplished manually.
  • the flexible envelope will be more likely to be used if the core substance is liquid, or if it becomes liquid or too tacky during the heating and application process, or if it consists of unacceptable or unproven materials for use in contact with skin or other body tissue.
  • the envelope may not be used if medically acceptable separation of the core substance from the body can be achieved by using barrier or separating spacer materials including firms or sheets of a suitable envelope material itself.
  • the envelope may be used with all core substance compositions if desired.
  • the envelope may be constructed from any materials including plastic polymers, elastomers, fabrics, sintered fibre papers and the like or even metals. Ideally the envelope will be made of films or fabrics or any other form that can be produced readily by known methods and then shaped to produce the particular envelope required.
  • the envelope maybe crimped, dimpled, corrugated, pleated, embossed, woven or presented in any physical form that can ease shaping when placed over complex contours.
  • the envelope may be chosen to be impermeable, semi permeable or permeable to some or all the materials contained in the core.
  • the envelope material may contain reinforcing fibres, in any format.
  • the envelope may contain wires which when a current is passed through them causes ohmic heating.
  • the envelope may be a foamed material which could maintain the temperature and flexibility of the core whilst being formed and also prevent discomfort to the patient by slowing heat transfer from the core.
  • the envelope may be of any chemical composition which will form a flexible film either at ambient temperatures or at any temperature up to the temperature used for heating the core material to allow it to be physically changed in shape.
  • the envelope may have attached on the external surfaces, partially or completely, other materials including bandages, socks and foams intended to be in contact with skin or other tissue to enable patient comfort, ease of application and positioning plus thermal protection when the splinting device is heated for shaping.
  • the splinting device may be used on the top of bandages, socks, foams and the like applied to the patient beforehand.
  • the envelope material will be one which is known or can be proved to be inert or acceptable for contact with skin or other tissue.
  • the envelope material will be one which can be sterilised using known thermal or radiation techniques to allow reuse.
  • the envelope will be radioleucent.
  • the envelope maybe of any suitable shape and may contain discontinuities. Discontinuities maybe utilised to enable formability to contour the access of air to the repair area, evaporation of moisture, the application of medicaments, visual or radiological inspection or any purpose connected with the medical treatment or comfort of the patient.
  • Methods for holding the splinting device temporarily or semi permanently in position such as buckles, belts, ties, adhesives and Velcro may be attached to the envelope or used separately as necessary or convenient.
  • the core material is load bearing for this invention at least up to 3O 0 C and may be readily changed in shape or form when softened at a suitable temperature by heating within the temperature range of 30 0 C up to 15O 0 C. It is also implied that it is the inventor's intention to operate the splinting device advantageously in the range between 4O 0 C to 100 0 C and ideally between 45 0 C and 8O 0 C.
  • the core material may be a single compound or a mixture of compounds or a polymer or polymers or a mixture, homogeneous or non homogeneous of meltable or softenable compounds including thermoplastics or cross linked thermoset polymers and may contain any modifying materials which confer beneficial application properties or other advantages.
  • the core material may also be completely or partially foamed whether before placing in the flexible envelope, if required, or subsequently at any time by a chemical foaming reaction or gas injection or any combination of these.
  • the core material may include reinforcing or non reinforcing fibres made from any fibre forming material.
  • the core material may be composed entirely of fibres.
  • the core material may use fibres that are coated with any material organic or inorganic.
  • the fibres may be in continuous or discontinuous form or any mixture of forms. Where suitable these fibres may be presented in any woven, knitted or creped forms or be unidirectional, cross-plied, stitched or random or any mixture as required.
  • the fibres may contain fillers or toughing agents.
  • the fibres may be foamed.
  • the core material may contain fillers of any shape. These fillers may be solid, liquid or elastomeric, toughening fillers whether added to the initial core material or generated in situ by chemical reaction, hollow low thermal conductivity fillers, high latent heat of fusion or solidification fillers, electrically conductive fillers and or electrically conducted wires that when attached to a suitable source of electricity will give rise to ohmic heating, hollow tubes or the like which may be used for the passage of coolant(s) or heating media, thixotropic agents, plasticisers, pigments, foaming agents, heat and light stabilisers and biologically and bacteriologically active compounds amongst others.
  • fillers may be solid, liquid or elastomeric, toughening fillers whether added to the initial core material or generated in situ by chemical reaction, hollow low thermal conductivity fillers, high latent heat of fusion or solidification fillers, electrically conductive fillers and or electrically conducted wires that when attached to a suitable source of electricity will give rise to ohmic heating, hollow tubes
  • the core material is radioleucent.
  • This invention also allows for the core material to contain compounds with different softening temperatures and also more than one type of reinforcing fibre or asymmetric distribution of these fibres or compounds allowing the core to possess different softening temperatures, formability and strengths in different axes. This allows the possibility for designing the splinting device to be flexible at ambient temperatures in some axes and to require heating for fo ⁇ ning in others and the like.
  • the core material may be of any convenient shape and include discontinuities even if used without the optional envelope. It is an integral part of this splinting device that it becomes soft at some temperature up to 150 0 C for forming to the required shape. Usually this will be achieved by thermal heating but it may in some cases be brought about by radiation polymerisation or initiation or heating of suitable latent reactive compounds which may be liquid at ambient temperature to yield solid polymers or oligomers in situ.
  • thermal heating is used to allow forming of the sprinting device it may be applied by any convenient means. This can be by preheating the device away from the actual patient application site using any form of energy transmission within the visible or invisible band of the electromagnetic spectrum, or by the application of a heater band or bandage which may be similarly heated, or by electrical resistance heating either via the use of electrically conductive wires and or fillers in the core material or the envelope or the heater band or bandage, or by generation of heat by chemical or physical reaction of materials. In the case of electrical or chemical or physical reaction heating this can be arranged to be an integral part of the device or a separate entity permanently attached to the device or it can just be placed in contact with the device and be so easily removable.
  • Preferred methods of heating are those, which can conveniently be reapplied again when the device is already in use to allow readjustment of shape and subsequently removal.
  • electrical resistance heating of any part of the splinting device electrical heating of a bandage which may or may not be permanently attached to the flexible envelope or the reapplication of a heated bandage or an exothermic chemical or physical heat generation pack are advantageous.
  • compositions within the flexible envelope where radiation polymerisation of compositions within the flexible envelope is employed it is essential that the polymerised core should be formable within the temperature range of 3O 0 C to 15O 0 C enabling the same methods of reheating for physical adjustment to be used.
  • the invention can be designed to provide the following advantages: •
  • the device is lightweight
  • the core material has a fast solidification time
  • the device can be partially discontinuous permitting the dressing of underlying open wounds or inspection
  • the device may be radioleucent permitting x-ray, CT and MRI scanning
  • the device is reusable
  • the device may be used to provide release of biologically active materials over a period of time
  • Figure 1 and 2 represent two configurations of an electrically heated version of the device.
  • Figure 1 is a plan view of the device laid flat.
  • Figure 2 is a perspective view of the device set in a U-shaped form.
  • Figure 3 is section HI-III through the device from Figure 1.
  • the envelope will contain the reshapable core material defined earlier.
  • Such a material changes phase or softens at a temperature in the range of 3O 0 C to 15O 0 C advantageously from 40° to 100 0 C and ideally between 45° and 80° and preferably in the region of 5O 0 C.
  • the core material 5 may be the product sold under the trademark "Tliermophase” Grade FSF-52 manufactured by Orcus Inc. This material has a phase change temperature of 52 0 C, above which the material is in the form of a thixotropic liquid.
  • the envelope 2 also contains an electrical heating element 6 shown in Figure 1 in broken lines for heating the core material to the phase softening temperature.
  • This element 6 is connected to a pair of terminals 7 provided on the outer surface of the envelope 2.
  • Current may be supplied through the terminals 7 provided to the element 6 from a suitable AC or DC power source.
  • this core material 5 may be heated by passing a current directly through the thermoplastic providing that it is electrically conductive.
  • a pair of electrodes may be provided within the envelope through which a potential difference may be applied across the thermoplastic medium.
  • These electrodes may for example be formed on the inside faces of the sides 3.
  • a current is applied through the heating element 6 to heat the core material 5 to the core forming temperature. At this temperature the core material can be moulded to most desired shapes.
  • This example is just one embodiment of the invention. Where separate heating of the splinting device is achieved by remote radiation or heater bands or bandages are used, whether electrically heated or not there is no need to incorporate electrically conducting materials, wires or electrodes to the device.
  • a flexible envelope will usually be used.
  • the core material softens without becoming difficult to handle it may be used without an envelope if it is either a medically acceptable material or may be safely separated from skin or other tissue by suitable protective layers.
  • This version of the invention may also be used with or without direct means of electrical heating.
  • the device may be cut to any required shape.
  • the splinting device may be wrapped around the forearm in a U-shape form shown in Figure 3.
  • the current is switched off or other means of heating removed allowing the material to cool and resolidify after which traction can be released.
  • the splinting device 1 acts in the same way as a plaster of Paris cast to retain the fractured bones in correct alignment and to protect them during the healing process.
  • the core material can be softened whenever necessary to correct the alignment of the bones or removed to check any wound or dressing, and to allow manipulation of the joints and exercise of the muscles. Muscle wastage can thus be reduced and rehabilitation time can be shortened considerably.
  • the splinting device may be produced in different sizes and shapes for use at different sites, for example on the upper limbs, lower limbs and wrist joints.
  • Various thickness, specific strength and different performance in the x, y and z axes versions can be made.
  • the products may be coloured or printed to make them more attractive to provide information.
  • the devices could for example be printed with cartoon characters for use on children etc.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention concerne une attelle qui peut être moulée en une forme requise autour d'une partie corporelle devant être immobilisée. L'attelle comprend un noyau malléable (5) qui peut être durci par chaleur par l'intermédiaire d'électrodes ou de bornes (7) et d'un élément de chauffage (6). Le noyau (5) est enfermé dans une enveloppe de tissu (2).
PCT/GB2007/005003 2006-12-22 2007-12-21 Dispositif de contention ou d'immobilisation WO2008078105A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0625861.0 2006-12-22
GB0625861A GB0625861D0 (en) 2006-12-22 2006-12-22 Modified flexicast/flexisplint

Publications (2)

Publication Number Publication Date
WO2008078105A2 true WO2008078105A2 (fr) 2008-07-03
WO2008078105A3 WO2008078105A3 (fr) 2008-10-02

Family

ID=37759010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/005003 WO2008078105A2 (fr) 2006-12-22 2007-12-21 Dispositif de contention ou d'immobilisation

Country Status (2)

Country Link
GB (1) GB0625861D0 (fr)
WO (1) WO2008078105A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220170003A (ko) * 2021-06-22 2022-12-29 다소니 주식회사 휴대형 공기가온기

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB698255A (en) * 1949-09-13 1953-10-14 Karl Egen Improvements in mouldable articles for application to the human body
US3326211A (en) * 1964-03-31 1967-06-20 Jeanne N Logue Reusable cast-like appliance
US3692023A (en) * 1970-07-20 1972-09-19 Union Carbide Corp Formable orthopedic cast materials, resultant casts and method
WO2000057821A1 (fr) * 1999-03-25 2000-10-05 Benjamin Chang Dispositif d'attelle
US6346210B1 (en) * 1997-02-14 2002-02-12 The Rockport Company, Llc Method of shaping susceptor-based polymeric materials
WO2005052235A1 (fr) * 2003-11-25 2005-06-09 Tytex A/S Materiaux textile 3d doux, amortissant et rigidifiant
EP1582187A1 (fr) * 2004-04-02 2005-10-05 Orfit Industries Dispositif hybride d'immobilisation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB698255A (en) * 1949-09-13 1953-10-14 Karl Egen Improvements in mouldable articles for application to the human body
US3326211A (en) * 1964-03-31 1967-06-20 Jeanne N Logue Reusable cast-like appliance
US3692023A (en) * 1970-07-20 1972-09-19 Union Carbide Corp Formable orthopedic cast materials, resultant casts and method
US6346210B1 (en) * 1997-02-14 2002-02-12 The Rockport Company, Llc Method of shaping susceptor-based polymeric materials
WO2000057821A1 (fr) * 1999-03-25 2000-10-05 Benjamin Chang Dispositif d'attelle
WO2005052235A1 (fr) * 2003-11-25 2005-06-09 Tytex A/S Materiaux textile 3d doux, amortissant et rigidifiant
EP1582187A1 (fr) * 2004-04-02 2005-10-05 Orfit Industries Dispositif hybride d'immobilisation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220170003A (ko) * 2021-06-22 2022-12-29 다소니 주식회사 휴대형 공기가온기
KR102492096B1 (ko) * 2021-06-22 2023-01-26 다소니 주식회사 휴대형 공기가온기

Also Published As

Publication number Publication date
WO2008078105A3 (fr) 2008-10-02
GB0625861D0 (en) 2007-02-07

Similar Documents

Publication Publication Date Title
US7985192B2 (en) Geometrically apertured protective and/or splint device comprising a re-mouldable thermoplastic material
US10463544B2 (en) Orthopedic system for immobilizing and supporting body parts
US7556610B2 (en) Gel wrap providing musculo-skeletal support
US4964402A (en) Orthopedic device having gel pad with phase change material
US11865025B2 (en) Rapid setting composite article
US20040260224A1 (en) Arm suspension sleeve
ZA200303856B (en) Custom-formable knee immobilizer product, knee immobilizer and method.
EP1845907A1 (fr) Orthese et son procede de fabrication
CN1502313A (zh) 形状记忆骨骼固定夹板
WO2008078105A2 (fr) Dispositif de contention ou d'immobilisation
WO2000057821A1 (fr) Dispositif d'attelle
JPS6055133B2 (ja) 整形用装具、材料および方法
IE20050593A1 (en) Geometrically apertured protective and/or splint device comprising a re-mouldable thermoplastic material
CN214128973U (zh) 一种骨折外固定复合支具
US20210236684A1 (en) Device for mapping the shape of a spatial form
WO2019046917A1 (fr) Matériau thermoplastique à usage vétérinaire
KR20200057654A (ko) 공기주머니를 구비한 욕창 방지용 부목
WALTERS et al. Semi-RIGIDCASTS
Reed The Treatment of fractures: the principles and methods of closed reduction
JPH0134619B2 (fr)
JPS61268429A (ja) 熱軟化性プラスチツク整形方法及びプラスチツク複合体

Legal Events

Date Code Title Description
NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07848688

Country of ref document: EP

Kind code of ref document: A2