WO1998032402A1 - Systeme de fixation d'un element servant a immobiliser un malade - Google Patents

Systeme de fixation d'un element servant a immobiliser un malade Download PDF

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Publication number
WO1998032402A1
WO1998032402A1 PCT/BE1998/000010 BE9800010W WO9832402A1 WO 1998032402 A1 WO1998032402 A1 WO 1998032402A1 BE 9800010 W BE9800010 W BE 9800010W WO 9832402 A1 WO9832402 A1 WO 9832402A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixation system
patient
groove
low
parts
Prior art date
Application number
PCT/BE1998/000010
Other languages
English (en)
Inventor
Steven Cuypers
Original Assignee
Orfit Industries
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 Orfit Industries filed Critical Orfit Industries
Priority to DE29880026U priority Critical patent/DE29880026U1/de
Priority to AU56490/98A priority patent/AU5649098A/en
Publication of WO1998032402A1 publication Critical patent/WO1998032402A1/fr

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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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. splints, casts or braces

Definitions

  • This invention relates to a fixation system for an immobilisation element of a patient, in particular a low-temperature immobilisation element.
  • Immobilising a patient or a part of a patient's body during radiotherapy, radiological examination and/or radiodiagnostics, or during stereotactic surgery on the one hand improves the quality of these methods of medical treatment and examination as a result of increased efficiency and accuracy, and on the other hand increases the comfort of the patient.
  • the available systems comprise, on the one hand, a masking sheet material which is moulded over the patient, and on the other hand a base, to which the moulded masking sheet is joined.
  • a system using a hook-and-loop strip in which the loop strip is pulled taut over the patient and is attached to the hook strip on the base
  • a system using a so-called high-temperature plastic material (HTTP) in which firstly a negative impression of the patient is taken using plaster of Paris, then a positive mould is made in plaster of Paris from this impression, and the plastic is moulded over this positive mould by means of a vacuum forming technique.
  • HTP high-temperature plastic material
  • the resultant plastic element is then placed over the patient and attached to the base; a system using a patient and attached to the base; a system using a thermosetting, synthetic plaster bandage which is moulded over the patient and is attached to the base; and also a system using a so-called "bite block" system, in which on one side a small block is placed in the mouth of the patient, and the patient has to bite on this block, and on the other side a connecting piece situated on the block is attached to the base; a system in which a cushion in a soft state is arranged around the patient and is then hardened. This hardening can be carried out by chemically curing the content of the cushion or by withdrawing the air from the cushion so that the remaining content of the cushion hardens. This cushion is then fastened to the base.
  • the patient is only immobilized to a very limited extent, since this system is 2-d ⁇ mens ⁇ onal and surrounds only a very limited area of the body part to be immobilized. This is because the loop strip has a limited width.
  • the next system does not allow direct mmoDil zation of the patient.
  • the system is laborious, time-consuming to use, uncomfortable for the patient and requires expensive equipment and a plurality of people.
  • the high-temperature plastic material cannot be remoulded.
  • the chemical reaction of the further known system entails an exothermic reaction, whicn is uncomfortable for the patient. Moreover, various layers are moulded unevenly above one another, resulting in differences in thickness and density in the mould, which interfere with the emitted radiation, resulting in a lack of accuracy.
  • the next known system is a 2-d ⁇ mens ⁇ onal mould, which only provides a limited degree of immobility and is thus uncomfortable for the patient.
  • the further known system is 2-d ⁇ mens ⁇ onal and large, the chemical system producing an exothermic reaction and entailing a laborious operating procedure, and the vacuum system exhibiting poor dimensional stability during subsequent sessions owing to the lack of vacuum caused by air penetrating into the system.
  • the various existing systems using purely LTTP have the problem that the mould is attached to the base at only two points, so that the accuracy is not sufficiently high.
  • Two people are required in order to effect the activation and shaping of the low-temperature plastic.
  • two people are required here. Owing to the thickness tolerance in the low- temperature plastic, the fixing part does not always fit equally easily into the base.
  • two people are also required and it can only be employed on one base system.
  • the so-called tent mould of the low- temperature plastic means that the body part is not completely enclosed, so that it remains movable, which causes a lack of accuracy.
  • the high- temperature plastic fixing profiles can in each case be used on only one system.
  • a fixation profile which is known here has a relatively high density, which represents a drawback in those cases in which the said profile is situated in the field of irradiation.
  • the shape of the single-piece profile can only be used on a single type of base plate. Furthermore, owing to the fact that the profile is permanently joined to the low-temperature plastic masking sheet, the use is moreover limited to that one low-temperature plastic material or that one low- temperature plastic mould or masking sheet to which the profile in question s attached.
  • the object of this invention is to alleviate the abovementioned drawbacks .
  • the system according to the invention comprises a fixation profile with two parts which can be detached from one another, one side of which profile is provided with a slot for accommodating the said immobilization element therein, and the other side of which profile is provided with a fixing element for interacting in a fixed manner with a base as a support for the patient.
  • One part is produced from a high-temperature plastic material which is non- deformable at the working temperature. Both parts can be coupled together by means of coupling members which are provided for this purpose.
  • the system according to the invention thus comprises a fixation system which has two parts, where one part rests on or can even be attached by the user to the immobilization element which is placed over that part of the body which is to be immobilized, and where the other part can on one side be detachably connected to the said one part and on the other side can have different shapes which are such that any specified mould fits into or onto a given base plate.
  • the fixation system according to the invention therefore enables an immobilization masking sheet to be fixed to base plates of various types.
  • this low-temperature plastic masking sheet can be placed completely in the heating medium without the operator having to hold the mould.
  • the heating medium may, for example, be formed by a water tank or an oven.
  • Figures 1 and 2 respectively show a perspective view and a cross-section of the fixation system according to the invention, in the coupled state and with the parts detached from one another, respectively.
  • Figure 3 is a diagrammatic plan view of a patient to be treated who has been placed on a support table with a fixing plate.
  • the fixation system represented in Figures 1 and 2 comprises a profile which comprises two parts 10, 20 which can be detached from one another and are shaped in such a way that they can be pushed onto one another so that the two parts 10, 20 can be joined together and detached again easily while nevertheless ensuring a strong and reliable connection in the joined state (not shown) .
  • This is achieved in a very satisfactory manner by means of the illustrated shape of the respective ends 19, 29 of the two parts 10, 20, which allows these parts to be pushed onto one another.
  • the holding part 10 has a fixed shape and is adhesively bonded to the fixing masking sheet 30 by means of a joining agent 2, such as for example glue, which ensures that the two parts 30, 2 remain stuck to cne another during the activation.
  • part 20 may take various forms, in each case fitting along one side 29 over the holding part 10 and along the other s de 21 into, onto or over a fixing plate 40 of a giver, form.
  • the holding part 10 is in the shape, for example, of a U which is pushed over the said low-temperature plastic masking sheet 30 and is adhesively bonded by means of the said bonding agent 2, which ensures that the low-temperature plastic masking sheet remains stuck during the activation.
  • a slot 11 is formed on the holding side for holding the masking sheet 30, and the width of opening 11 may differ depending on the thickness of the masking sheet 30.
  • the holding part 10 On its underside, the holding part 10 has an external barlike projecting part or protrusion 12 which fits in a corresponding coupling side 22 of the second part 20.
  • the second part 10 is thus provided on the said coupling side with a groove 22, which fits tightly over the said protrusion 12 of the holding part 10.
  • the groove 22 has a constriction 25 which forms a narrowed section 26 of the groove 22. This constriction 25 exerts a retaining action on the said protrusion 12 and makes it possible to snap the holding part 10 into the groove.
  • the opposite side 21 of the engagement part 20 may have various forms which are such that part 20 can fit into various types of fixing plates 40.
  • This side may, for example, have an L-shape 21 which is known per se, so that it fits into the fixing plates 40 of our existing HP system.
  • the said side may also be straight with three openings, so that it fits over the small pins on the fixing plate of a conventional system.
  • the holding part 10 and the engaging part 20 can thus be quickly connected to one another in a reliable but nevertheless releasable manner without the two parts being able to move with respect to one another once they have been snapped or pushed into one another unless a considerable force is exerted on them. This avoids the two parts 10, 20 from becoming detached unintentionally during normal use.
  • a clamping system is used in which the fixation profile was clamped around the fixing material or masking sheet and was easy to remove therefrom.
  • a system was also tried which had a hook-and-loop strip allowing the fixation profile and the masking sheet to be mounted and detached easily.
  • both systems failed to produce sufficient holding capacity, with the result that there was a risk of the fixing or masking sheet coming loose during activation.
  • the second part 20 is attached to the first part 10 by means of connecting elements, preferably screws, thus also ensuring that the two parts 10, 20 can be removed and exchanged.
  • the said immobilization element is, for example, transparent. However, it may also be opaque.
  • Figure 3 diagrammatically shows a patient 50 who is to be treated _and who has been placed on a fixing plate 40, in which suitable slots 41 are provided at predetermined locations for inserting the engaging side 21 of the part 20 therein in a manner which is well known.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (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)
  • Radiation-Therapy Devices (AREA)
  • Materials For Medical Uses (AREA)
  • External Artificial Organs (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

Système de fixation conçu pour un élément servant à immobiliser un malade, en particulier, un élément d'immobilisation à basse température, composé d'un profil de fixation (1), dont un côté est pourvu d'une fente (11) servant à loger ledit élément d'immobilisation (30) et dont l'autre côté est pourvu d'un élément de fixation (21) permettant d'exercer une interaction de façon fixe avec une base (40) servant de support au patient, et caractérisé par le fait que ledit profil de fixation (1) comprend deux parties (10, 20) qu'on peut détacher l'une de l'autre et qu'on peut accoupler l'une à l'autre au moyen d'éléments d'accouplement (12, 22), situés respectivement à cet effet sur chacune des deux parties (10, 20), l'une (10) de ces parties étant fabriquée en un matériau plastique à température élevée non déformable à la température d'utilisation.
PCT/BE1998/000010 1997-01-23 1998-01-23 Systeme de fixation d'un element servant a immobiliser un malade WO1998032402A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29880026U DE29880026U1 (de) 1997-01-23 1998-01-23 Fixierungssxstem für ein Patienten-Immobilisierungselement
AU56490/98A AU5649098A (en) 1997-01-23 1998-01-23 Fixation system for an immobilisation element of a patient

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9700072 1997-01-23
BE9700072A BE1010879A3 (nl) 1997-01-23 1997-01-23 Bevestigingssysteem voor immobilisatie-element van een patient.

Publications (1)

Publication Number Publication Date
WO1998032402A1 true WO1998032402A1 (fr) 1998-07-30

Family

ID=3890297

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BE1998/000010 WO1998032402A1 (fr) 1997-01-23 1998-01-23 Systeme de fixation d'un element servant a immobiliser un malade

Country Status (4)

Country Link
AU (1) AU5649098A (fr)
BE (1) BE1010879A3 (fr)
DE (1) DE29880026U1 (fr)
WO (1) WO1998032402A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6756330B1 (en) 1999-01-08 2004-06-29 N.V. Bekaert S.A. Knitted fabric of steel fibers with increased number of stitches
US9296640B2 (en) 2010-03-26 2016-03-29 Nv Bekaert Sa Knitted fabric of steel fibers
WO2019145888A1 (fr) 2018-01-24 2019-08-01 Orfit Industries Élément d'immobilisation à profilé pourvu de saillies

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994018916A1 (fr) * 1993-02-17 1994-09-01 Kelvin Conrad Doyle Element de protection de membre
WO1996011226A2 (fr) * 1994-10-07 1996-04-18 Orfit Industries Procede de production d'une matiere synthetique thermoplastique, et element d'immobilisation la comportant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994018916A1 (fr) * 1993-02-17 1994-09-01 Kelvin Conrad Doyle Element de protection de membre
WO1996011226A2 (fr) * 1994-10-07 1996-04-18 Orfit Industries Procede de production d'une matiere synthetique thermoplastique, et element d'immobilisation la comportant

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6756330B1 (en) 1999-01-08 2004-06-29 N.V. Bekaert S.A. Knitted fabric of steel fibers with increased number of stitches
US9296640B2 (en) 2010-03-26 2016-03-29 Nv Bekaert Sa Knitted fabric of steel fibers
WO2019145888A1 (fr) 2018-01-24 2019-08-01 Orfit Industries Élément d'immobilisation à profilé pourvu de saillies
BE1025953B1 (nl) * 2018-01-24 2019-08-27 Orfit Industries Immobilisatie element met profiel voorzien van protrusies
CN111629698A (zh) * 2018-01-24 2020-09-04 奥菲特工业公司 其型面设有突出的固定元件
JP2021510591A (ja) * 2018-01-24 2021-04-30 オルフィット インダストリーズ 突起が設けられたプロファイルを有する固定要素

Also Published As

Publication number Publication date
BE1010879A3 (nl) 1999-02-02
DE29880026U1 (de) 1999-05-20
AU5649098A (en) 1998-08-18

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