WO2025031996A1 - Radioprotective screen - Google Patents
Radioprotective screen Download PDFInfo
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- WO2025031996A1 WO2025031996A1 PCT/EP2024/072036 EP2024072036W WO2025031996A1 WO 2025031996 A1 WO2025031996 A1 WO 2025031996A1 EP 2024072036 W EP2024072036 W EP 2024072036W WO 2025031996 A1 WO2025031996 A1 WO 2025031996A1
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- screen
- ground
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- radio
- protective material
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- 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
- A61B6/10—Safety means specially adapted therefor
- A61B6/107—Protection against radiation, e.g. shielding
Definitions
- the present invention relates to the general field of equipment for protection against ionizing radiation.
- radio-protective screens which are used in medical or other environments, to protect an operator against emissions of ionizing radiation, for example X-rays.
- ionizing radiation such as X-rays
- fluoroscopy is an imaging technique that uses X-rays to obtain real-time images of an object.
- medical field its application allows the visualization of the structures and functions of a patient's internal organs, such as the heartbeat or the passage of blood in blood vessels.
- This technique is used for diagnosis as well as therapy; and it is present in the interventional fields including radiology, cardiology, neurology, electrophysiology, peripheral vascular radiology, interventional pediatrics, etc.
- fluoroscopy devices also called C-arm
- C-arm fluoroscopy devices
- catheters and probes are introduced through an access route (usually the femoral or radial artery) for diagnostic or therapeutic purposes.
- the vascular network is visualized using X-rays, often coupled with an injection of contrast product(s).
- contrast product(s) often coupled with an injection of contrast product(s).
- screens or barriers made up of panels or assemblies of panels made of suitable radio-protective material(s), suspended from a suitable support or placed on the ground, either directly or by means of a rolling base.
- Such shielding structures generally adequately protect the operator who is located just behind the radiation-protective wall(s).
- the operator or other persons do not have any specific information regarding radiation protection when they are located behind the screen and at some distance from the radiation-protective walls.
- the present invention proposes a screen made of radio-protective material to ensure the protection of an operator against emissions of ionizing radiation of the X-ray or other type, which screen comprises a rear screen face opposite which said operator is intended to position himself and a front screen face opposite said rear screen face, this screen being characterized by the fact that it comprises means for generating a luminous marking on the ground, adapted to delimit an area considered as a protection zone on the side of the rear screen face.
- Such luminous marking generated on the ground makes it possible to inform the person(s) present about the area radio-protected by the screen, in particular so as to allow them to adapt their position in the space to be correctly protected.
- the screen comprises screen lateral sides, and the means for generating a luminous marking on the ground comprise means for generating a luminous line in the extension of at least one of said screen lateral sides;
- the means for generating a light marking on the ground comprise a vertical plane light beam
- the means for generating a light marking on the ground comprise at least one laser device
- the two lateral sides of the screen comprise the means for generating a light line on the ground, so as to generate two light lines which delimit, between them, said zone considered as a protection zone on the rear face side of the screen;
- the screen comprises fixed lateral planar panels which comprise at least a portion of said lateral screen sides, which fixed lateral planar panels extend in respective planes P and P', and the means for generating a light line on the ground are arranged to generate a light line in said planes P, P', or parallel to said planes P, P', to within 10° degrees relative to said plane(s) P, P';
- the fixed side planar panels extend in respective planes P and P' which are offset by 70 to 100°;
- the screen rests on the ground by means of a rolling base comprising casters fixed on caster supports, at least some of said caster supports, called lateral caster supports, being arranged near said lateral sides of the screen, and the means for generating a luminous marking on the ground are fixed on said lateral caster supports;
- the screen comprises control means for controlling the activation and deactivation of the means for generating a luminous marking on the ground, which control means are provided on the rear face of the screen;
- the screen comprises at least one battery structure for the electrical supply of the means for generating luminous marking on the ground, which battery structure is removably fixed on the rear face of the screen;
- the screen includes means for differentiating the light marking on the ground, depending on whether means for emitting ionizing radiation such as X-rays or others are activated or not.
- Figure 1 is a perspective view of a possible embodiment of a screen made of radio-protective material in accordance with the invention
- Figure 2 is an enlarged view of part A of the radiation-protective material screen illustrated in Figure 1.
- the radiation protection screen 1 illustrated in Figures 1 and 2 is suitable for ensuring the protection of an operator in particular against ionizing radiation emitted by a source of ionizing radiation, for example X-rays emitted by a C-arm type fluoroscopy device, in a hospital operating room.
- a source of ionizing radiation for example X-rays emitted by a C-arm type fluoroscopy device
- this radio-protective screen 1 are made of radio-protective material(s) having a lead equivalence. adapted, of at least 0.2 mm, depending on the constituent parts concerned.
- this lead equivalence is between 0.5 mm and 3 mm.
- This screen 1 made of radio-protective material(s) may correspond to that described in document EP-3 555 892.
- this radio-protective screen 1 is in the form of a mobile cabin, here with a general horizontal dihedral section, comprising a rear screen face 2, opposite which an operator is intended to position himself (on the side of the acute angle of the dihedral, identified by location B in Figure 1), and a front screen face 3, opposite the rear screen face 2.
- the radio-protective screen 1 is delimited laterally by two lateral screen sides 4 and 5.
- the lateral side of the screen 4 constitutes the free lateral edge of a fixed lateral flat panel 6 which extends in a plane P over the entire height of the screen 1; and the lateral side of the screen 5 is divided into two parts 51 and 52, the first part 51 constituting the free edge of a lower fixed lateral flat panel 7, which extends in a plane P', and the second part 52 constituting the free edge of an upper movable lateral flat panel 8.
- the fixed side plane panel 6 is connected, at the level of a vertical or substantially vertical corner edge 9:
- the two fixed side planar panels 6 and 7 extend in respective planes P and P' which are offset by an angle of between 70 and 100° (preferably of the order of 90°).
- the various flat panels 6, 7 and 8 constituting the radio-protective screen 1 are made of radio-protective material(s) such as steel, lead, lead glass, etc.
- a rolling base 10 for ground support which includes:
- the upper edge of the fixed side plane panel 6 and the upper edge of the movable side plane panel 8 each comprise a roof-forming extension, respectively 15 and 16, made of radio-protective material, which extend on the side of the rear face of the screen 2.
- the roof extension 16 extends in a plane offset from the plane of the roof extension 15 so as not to hinder the pivoting of the upper movable lateral plane panel 8.
- the radio-protective screen 1 comprises means 17, 17a for generating a luminous marking 18, 18a on the ground, adapted to delimit a zone C considered as a protection zone on the side of the rear face of the screen 2.
- the means in question for generating a luminous marking on the ground comprise means for generating a luminous line 18, 18a in the extension of at least one of the lateral sides of the screen 4, 51, and preferably in the extension of the two lateral sides of the screen 4, 51.
- the light lines 18, 18a extend from the lateral sides of the screen 4, 51, or close to them (a few cm or tens of cm), and this over a length of several meters (for example 1 to 4 m).
- laser devices 17, 17a are used here, adapted to generate a vertical plane light beam 19, 19a, the projection of which on the ground forms a light line 18 and 18a on each side of the radio-protective screen 1.
- the laser devices 17, 17a are placed on the screen 1, as close to the ground as possible.
- the laser devices 17, 17a are attached to the side roller supports 14 which are provided on or near the side screen sides 4 and 51.
- the means for generating a luminous marking on the ground can be fixed to other areas of the radio-protective screen 1, for example directly on the lateral sides of the screen 4, 5 or on the fixed lateral flat panels 6 and 7.
- the means 17, 17a for generating a light line 18, 18a on the ground are arranged to generate this light line in, or parallel to, at least one of the planes P, P' of the two fixed lateral flat panels 6 and 7, this to within 10° degrees relative to each of the planes P, P'.
- the length of the light lines 18, 18a and the orientation of the light beams 19, 19a which generate them are adapted according to the desired safety characteristics, and according to the conventional positioning of the screen 1 relative to the radiation source located opposite the front face of the screen 3.
- the light lines can also be oriented differently, in particular depending on the positioning of the screen in relation to the source of the ionizing radiation.
- the means for generating the light marking on the ground are supplied with electricity by one or more battery structures 20.
- the battery structure(s) 20 are advantageously removably fixed to the rear face of the screen 2.
- control means 21 allow the control of the activation and deactivation of the means 17, 17a to generate a luminous marking on the ground.
- control means 21 are provided on the rear face of screen 2 to facilitate their activation and deactivation by the operator in position at location B.
- the luminous marking on the ground may also be provided to differentiate the luminous marking on the ground, depending on whether the means for emitting ionizing radiation of the X-ray or other type are activated or not.
- the luminous marking on the ground may be green when the means for emitting ionizing radiation are not activated, and red when they are activated.
- the luminous marking on the ground may be provided to vibrate when the means for emitting ionizing radiation are activated.
- the delimited, displayed or highlighted radiation protection zone C is defined between the two light lines 18, 18a generated in the extension of the two lateral sides of screen 4 and 5. It should be noted that, in certain special cases, a single light line generated in the extension of only one of the two lateral sides of screen 4 or 5 may prove sufficient.
- means other than laser devices may be used to generate the light marking on the ground.
- the means for generating the light marking on the ground may comprise a conventional light source associated with a mask comprising a vertical slit (for producing a vertical beam of light whose projection on the ground forms the desired line of light).
- the means for generating the light marking on the ground may comprise a plurality of light sources whose projection on the ground forms points or small illuminated surfaces which delimit the at least partial outline of the protection zone, or whose projection on the ground forms one or more large illuminated surfaces which constitute(s) or which determine(s) the protection zone.
- adjustment means to adjust the orientation of the light beam(s) generating the luminous marking on the ground, to adapt the marking of the protected area according to situations and needs.
- Screen structures without a rolling base on the ground can also be equipped with the means described above to generate luminous marking on the ground, suitable for delimiting an area considered to be a protection zone on the side of their rear face.
- the radiation-protective screen 1 in accordance with the invention makes it possible, in a simple manner, to visualize a radiation protection zone for personnel, behind the screen, with the aim of ensuring them effective protection and limiting any stress linked to doubt about their positioning.
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Abstract
Description
Description Description
Titre de l'invention : Paravent radio-protecteur Title of the invention: Radio-protective screen
Domaine technique de l'invention Technical field of the invention
La présente invention concerne le domaine général des équipements de protection contre les rayonnements ionisants. The present invention relates to the general field of equipment for protection against ionizing radiation.
Elle concerne plus particulièrement les paravents radio-protecteurs qui sont utilisés en milieu médical ou autre, pour protéger un opérateur à l’encontre des émissions de rayonnements ionisants, par exemple les rayons X. It particularly concerns radio-protective screens which are used in medical or other environments, to protect an operator against emissions of ionizing radiation, for example X-rays.
Etat de la technique State of the art
Dans le cadre de certains examens ou interventions, on soumet les patients à des rayonnements ionisants, type rayons X notamment, utilisés dans un but de contrôle, de diagnostic ou de traitement. As part of certain examinations or procedures, patients are exposed to ionizing radiation, such as X-rays, used for monitoring, diagnosis or treatment purposes.
C’est le cas en particulier pour des interventions du genre cathétérisme, pose de pacemakers, examens vasculaires, neurologiques ou urologiques, CRM (Cardiac Rhythm Management), CRT (Cardiac Resynchronization Therapy) ou encore lors de la mise en œuvre de techniques de fluoroscopie. This is particularly the case for interventions such as catheterization, pacemaker insertion, vascular, neurological or urological examinations, CRM (Cardiac Rhythm Management), CRT (Cardiac Resynchronization Therapy) or when implementing fluoroscopy techniques.
En particulier, la fluoroscopie est une technique d’imagerie qui consiste à utiliser les rayons X pour obtenir des images en temps réel d’un objet. Dans le domaine médical, son application permet la visualisation des structures et fonctions des organes internes d’un patient, comme par exemple le battement cardiaque ou le passage du sang dans les vaisseaux sanguins. Cette technique est utilisée pour le diagnostic ainsi que la thérapie ; et elle est présente dans les domaines interventionnels notamment de la radiologie, cardiologie, neurologie, électrophysiologie, radiologie périphérique vasculaire, pédiatrie interventionnelle, etc. In particular, fluoroscopy is an imaging technique that uses X-rays to obtain real-time images of an object. In the medical field, its application allows the visualization of the structures and functions of a patient's internal organs, such as the heartbeat or the passage of blood in blood vessels. This technique is used for diagnosis as well as therapy; and it is present in the interventional fields including radiology, cardiology, neurology, electrophysiology, peripheral vascular radiology, interventional pediatrics, etc.
Les salles destinées à ces spécialités sont équipées d’appareils de fluoroscopie (encore appelés C-arm) qui se présentent sous la forme générale d’un caisson technique mobile se prolongeant par un grand arceau dont une extrémité comporte un appareil émetteur de rayon X et dont l’autre extrémité est munie d’un détecteur. The rooms intended for these specialties are equipped with fluoroscopy devices (also called C-arm) which take the general form of a mobile technical box extended by a large arch, one end of which contains an X-ray emitting device and the other end of which is equipped with a detector.
Dans les salles équipées, des cathéters et sondes sont introduits par une voie d’accès (généralement l’artère fémorale ou radiale) dans un but de diagnostic ou thérapeutique. Le réseau vasculaire est visualisé grâce à l’utilisation des rayons X, souvent couplé à une injection de produit(s) de contraste. Ces appareils de fluoroscopie occupent une place importante autour de la table d’examen et leur positionnement est fréquemment modifié selon la zone corporelle du patient à inspecter ou à traiter. In equipped rooms, catheters and probes are introduced through an access route (usually the femoral or radial artery) for diagnostic or therapeutic purposes. The vascular network is visualized using X-rays, often coupled with an injection of contrast product(s). These fluoroscopy devices occupy a significant space around the examination table and their positioning is frequently modified depending on the area of the patient's body to be inspected or treated.
On comprend qu’il est important de protéger correctement les opérateurs (médecins, chirurgiens, techniciens, infirmières ou autre) contre les rayonnements ionisants émis, (de type primaires, provenant directement de l’émetteur, ou de type secondaires : réfléchis par les équipements et issus du patient lui-même), sous peine de les exposer à des doses importantes, cumulées dans le temps, susceptibles d’engendrer des pathologies diverses (nécroses des membres supérieurs, tumeurs cérébrales, cataractes, radiodermites etc.). It is understood that it is important to properly protect operators (doctors, surgeons, technicians, nurses or others) against emitted ionizing radiation (primary type, coming directly from the transmitter, or secondary type: reflected by the equipment and coming from the patient himself), otherwise they risk being exposed to significant doses, cumulative over time, likely to cause various pathologies (necrosis of the upper limbs, brain tumors, cataracts, radiodermatitis, etc.).
Il existe pour cela des structures de protection consistant en des vêtements du genre blouses, chasubles, tabliers en matériau radio-protecteur, protège-thyroïde, lunettes... , mais qui ne couvrent pas toujours la totalité du corps et dont le poids important nuit au confort de l’opérateur, limite ses capacités de mouvements et entraîne une fatigue rapide. For this purpose, there are protective structures consisting of clothing such as blouses, vests, aprons made of radio-protective material, thyroid shields, glasses, etc., but these do not always cover the entire body and their significant weight is detrimental to the operator's comfort, limits their ability to move and causes rapid fatigue.
Il existe encore des écrans ou paravents constitués de panneaux ou d’assemblages de panneaux en matériau(x) radio-protecteur(s) approprié(s), suspendus à un support adapté ou posés sur le sol, soit directement, soit par l’intermédiaire d’un piètement roulant. There are also screens or barriers made up of panels or assemblies of panels made of suitable radio-protective material(s), suspended from a suitable support or placed on the ground, either directly or by means of a rolling base.
De telles structures de paravents radio-protecteurs sont décrites dans les documents US-2012/0049093, US-2006/0076522, FR-2 915 868, WO-2009/156660, US-3 308 297, ou encore EP-3555892. Such radiation-protective screen structures are described in documents US-2012/0049093, US-2006/0076522, FR-2 915 868, WO-2009/156660, US-3 308 297, or EP-3555892.
De telles structures de paravent protègent généralement correctement l’opérateur qui est situé juste derrière la ou les parois radio-protectrices. Such shielding structures generally adequately protect the operator who is located just behind the radiation-protective wall(s).
Cependant, l’opérateur ou d’autres personnes ne disposent pas d’information particulière concernant la radioprotection lorsqu’ils sont situés à l’arrière du paravent et à quelque distance des parois radio-protectrices. However, the operator or other persons do not have any specific information regarding radiation protection when they are located behind the screen and at some distance from the radiation-protective walls.
Présentation de l'invention Presentation of the invention
Afin de remédier à l’inconvénient précité de l’état de la technique, la présente invention propose un paravent en matériau radio-protecteur pour assurer la protection d’un opérateur contre les émissions de rayonnements ionisants du type rayons X ou autres, lequel paravent comprend une face arrière de paravent en regard de laquelle ledit opérateur est destiné à venir se positionner et une face avant de paravent opposée à ladite face arrière de paravent, ce paravent étant caractérisé par le fait qu’il comprend des moyens pour générer un marquage lumineux sur le sol, adapté pour délimiter une zone considérée comme une zone de protection du côté de la face arrière de paravent. In order to overcome the aforementioned drawback of the state of the art, the present invention proposes a screen made of radio-protective material to ensure the protection of an operator against emissions of ionizing radiation of the X-ray or other type, which screen comprises a rear screen face opposite which said operator is intended to position himself and a front screen face opposite said rear screen face, this screen being characterized by the fact that it comprises means for generating a luminous marking on the ground, adapted to delimit an area considered as a protection zone on the side of the rear screen face.
Un tel marquage lumineux généré sur le sol permet de renseigner la ou les personnes présentes, sur la zone radio-protégée par le paravent, en particulier de sorte à permettre d’adapter leur position dans l’espace pour être correctement protégé. Such luminous marking generated on the ground makes it possible to inform the person(s) present about the area radio-protected by the screen, in particular so as to allow them to adapt their position in the space to be correctly protected.
D’autres caractéristiques non limitatives et avantageuses du paravent conforme à l’invention, prises individuellement ou selon toutes les combinaisons techniquement possibles, sont les suivantes : Other non-limiting and advantageous characteristics of the screen according to the invention, taken individually or in all technically possible combinations, are as follows:
- le paravent comprend des côtés latéraux de paravent, et les moyens pour générer un marquage lumineux sur le sol comprennent des moyens pour générer une ligne lumineuse dans le prolongement de l’un au moins desdits côtés latéraux de paravent ; - the screen comprises screen lateral sides, and the means for generating a luminous marking on the ground comprise means for generating a luminous line in the extension of at least one of said screen lateral sides;
- les moyens pour générer un marquage lumineux sur le sol comprennent un faisceau lumineux plan vertical ; - the means for generating a light marking on the ground comprise a vertical plane light beam;
- les moyens pour générer un marquage lumineux sur le sol comprennent au moins un dispositif laser ; - the means for generating a light marking on the ground comprise at least one laser device;
- les deux côtés latéraux de paravent comprennent les moyens pour générer une ligne lumineuse sur le sol, de sorte à générer deux lignes lumineuses qui délimitent, entre elles ladite zone considérée comme une zone de protection du côté de face arrière de paravent ; - the two lateral sides of the screen comprise the means for generating a light line on the ground, so as to generate two light lines which delimit, between them, said zone considered as a protection zone on the rear face side of the screen;
- le paravent comprend des panneaux plans latéraux fixes qui comprennent une partie au moins desdits côtés latéraux de paravent, lesquels panneaux plans latéraux fixes s’étendent dans des plans respectif P et P’, et les moyens pour générer une ligne lumineuse sur le sol sont agencés pour générer une ligne lumineuse dans lesdits plans P, P’, ou parallèlement auxdits plans P, P’, à 10° degrés près par rapport au(x)dit(s) plan(s) P, P’ ; - the screen comprises fixed lateral planar panels which comprise at least a portion of said lateral screen sides, which fixed lateral planar panels extend in respective planes P and P', and the means for generating a light line on the ground are arranged to generate a light line in said planes P, P', or parallel to said planes P, P', to within 10° degrees relative to said plane(s) P, P';
- les panneaux plans latéraux fixes s’étendent dans des plans respectif P et P’ qui sont décalés de 70 à 100° ; - le paravent repose sur le sol par l’intermédiaire d’un piètement roulant comprenant des roulettes fixées sur des supports de roulettes, certains au moins desdits supports de roulettes, dits supports latéraux de roulettes, étant ménagés à proximité desdits côtés latéraux de paravent, et les moyens pour générer un marquage lumineux sur le sol sont fixés sur lesdits supports latéraux de roulettes ; - the fixed side planar panels extend in respective planes P and P' which are offset by 70 to 100°; - the screen rests on the ground by means of a rolling base comprising casters fixed on caster supports, at least some of said caster supports, called lateral caster supports, being arranged near said lateral sides of the screen, and the means for generating a luminous marking on the ground are fixed on said lateral caster supports;
- le paravent comprend des moyens de commande pour commander l’activation et la désactivation des moyens pour générer un marquage lumineux sur le sol, lesquels moyens de commande sont ménagés sur la face arrière de paravent ; - the screen comprises control means for controlling the activation and deactivation of the means for generating a luminous marking on the ground, which control means are provided on the rear face of the screen;
- le paravent comprend au moins une structure de batterie pour l’alimentation électrique des moyens pour générer un marquage lumineux sur le sol, laquelle structure de batterie est fixée de manière amovible sur la face arrière de paravent ;- the screen comprises at least one battery structure for the electrical supply of the means for generating luminous marking on the ground, which battery structure is removably fixed on the rear face of the screen;
- le paravent comprend des moyens pour différentier le marquage lumineux sur le sol, selon que des moyens pour l’émission des rayonnements ionisants du type rayons X ou autres sont activés ou non. - the screen includes means for differentiating the light marking on the ground, depending on whether means for emitting ionizing radiation such as X-rays or others are activated or not.
Bien entendu, les différentes caractéristiques, variantes et formes de réalisation de l'invention peuvent être associées les unes avec les autres selon diverses combinaisons dans la mesure où elles ne sont pas incompatibles ou exclusives les unes des autres. Of course, the various features, variants and embodiments of the invention may be combined with each other in various combinations to the extent that they are not incompatible or mutually exclusive.
Description détaillée de l'invention Detailed description of the invention
De plus, diverses autres caractéristiques de l'invention ressortent de la description annexée effectuée en référence aux dessins qui illustrent une forme, non limitative, de réalisation de l'invention et où : In addition, various other characteristics of the invention emerge from the appended description given with reference to the drawings which illustrate a non-limiting form of embodiment of the invention and where:
La figure 1 est une vue en perspective d’un mode de réalisation possible d’un paravent en matériau radio-protecteur conforme à l’invention ; Figure 1 is a perspective view of a possible embodiment of a screen made of radio-protective material in accordance with the invention;
La figure 2 est une vue agrandie de la partie A du paravent en matériau radioprotecteur illustré sur la figure 1 . Figure 2 is an enlarged view of part A of the radiation-protective material screen illustrated in Figure 1.
Le paravent de radioprotection 1 illustré sur les figures 1 et 2 est adapté pour assurer la protection d’un opérateur en particulier contre les rayonnements ionisants émis par une source de rayonnements ionisants, par exemple des rayons X émis par un appareil de fluoroscopie du type C-arm, dans une salle d’opération hospitalière. The radiation protection screen 1 illustrated in Figures 1 and 2 is suitable for ensuring the protection of an operator in particular against ionizing radiation emitted by a source of ionizing radiation, for example X-rays emitted by a C-arm type fluoroscopy device, in a hospital operating room.
Pour cela les différentes parties constitutives de ce paravent radio-protecteur 1 sont réalisées en matériau(x) radio-protecteur(s) ayant une équivalence plomb adaptée, d’au minimum 0,2 mm, selon les parties constitutives concernées. Par exemple, cette équivalence plomb est comprise entre 0, 5 mm et 3 mm. For this, the various constituent parts of this radio-protective screen 1 are made of radio-protective material(s) having a lead equivalence. adapted, of at least 0.2 mm, depending on the constituent parts concerned. For example, this lead equivalence is between 0.5 mm and 3 mm.
Ce paravent 1 en matériau(x) radio-protecteur(s) peut correspondre à celui décrit dans le document EP-3 555 892. This screen 1 made of radio-protective material(s) may correspond to that described in document EP-3 555 892.
Tel qu’illustré sur les figures 1 et 2, ce paravent radio-protecteur 1 se présente sous la forme d’une cabine mobile, ici à section horizontale générale en dièdre, comprenant une face arrière de paravent 2, en regard de laquelle un opérateur est destiné à venir se positionner (du côté de l’angle aigu du dièdre, repéré par l’emplacement B sur la figure 1 ), et une face avant de paravent 3, opposée à la face arrière de paravent 2. As illustrated in Figures 1 and 2, this radio-protective screen 1 is in the form of a mobile cabin, here with a general horizontal dihedral section, comprising a rear screen face 2, opposite which an operator is intended to position himself (on the side of the acute angle of the dihedral, identified by location B in Figure 1), and a front screen face 3, opposite the rear screen face 2.
Le paravent radio-protecteur 1 est délimité latéralement par deux cotés latéraux de paravent 4 et 5. The radio-protective screen 1 is delimited laterally by two lateral screen sides 4 and 5.
Le côté latéral de paravent 4 constitue la bordure latérale libre d’un panneau plan latéral 6 fixe qui s’étend dans un plan P sur toute la hauteur du paravent 1 ; et le côté latéral de paravent 5 se décompose en deux parties 51 et 52, la première partie 51 constituant la bordure libre d’un panneau plan latéral 7 fixe inférieur, qui s’étend dans un plan P’, et la seconde partie 52 constituant la bordure libre d’un panneau plan latéral 8 mobile supérieur. The lateral side of the screen 4 constitutes the free lateral edge of a fixed lateral flat panel 6 which extends in a plane P over the entire height of the screen 1; and the lateral side of the screen 5 is divided into two parts 51 and 52, the first part 51 constituting the free edge of a lower fixed lateral flat panel 7, which extends in a plane P', and the second part 52 constituting the free edge of an upper movable lateral flat panel 8.
Le panneau plan latéral 6 fixe est relié, au niveau d’une bordure d’angle 9 verticale ou sensiblement verticale : The fixed side plane panel 6 is connected, at the level of a vertical or substantially vertical corner edge 9:
- avec le panneau plan latéral 7 fixe inférieur, cela de manière fixe, et - with the lower fixed side plan panel 7, this in a fixed manner, and
- avec le panneau plan latéral 8 mobile supérieur, cela de manière pivotante. - with the upper movable side plan panel 8, this in a pivoting manner.
Les deux panneaux plans latéraux fixes 6 et 7 s’étendent dans des plans respectifs P et P’ qui sont décalés d’un angle compris entre 70 et 100° (de préférence de l’ordre de 90°). The two fixed side planar panels 6 and 7 extend in respective planes P and P' which are offset by an angle of between 70 and 100° (preferably of the order of 90°).
Les différents panneaux plans 6, 7 et 8 constitutifs du paravent radio-protecteur 1 sont réalisés en matériau(x) radio-protecteur(s) tels que l’acier, le plomb, le verre au plomb etc. The various flat panels 6, 7 and 8 constituting the radio-protective screen 1 are made of radio-protective material(s) such as steel, lead, lead glass, etc.
L’ensemble est monté sur un piètement roulant 10 d’appui au sol qui comprend :The whole is mounted on a rolling base 10 for ground support which includes:
- des roulettes avant 11 fixées sur des supports de roulettes avant 12, et - front casters 11 fixed on front caster supports 12, and
- des roulettes latérales 13, fixées sur des supports latéraux de roulettes 14 qui sont ménagés à proximité des côtés latéraux de paravent 4 et 5. La bordure supérieure du panneau plan latéral 6 fixe et la bordure supérieure du panneau plan latéral 8 mobile comprennent chacun un prolongement formant toiture, respectivement 15 et 16, réalisés en matériau radio-protecteur, qui s’étendent du côté de la face arrière de paravent 2. - side rollers 13, fixed on side roller supports 14 which are provided near the lateral sides of screens 4 and 5. The upper edge of the fixed side plane panel 6 and the upper edge of the movable side plane panel 8 each comprise a roof-forming extension, respectively 15 and 16, made of radio-protective material, which extend on the side of the rear face of the screen 2.
Le prolongement formant toiture 16 s’étend dans un plan décalé par rapport au plan du prolongement formant toiture 15 pour ne pas gêner le pivotement du panneau plan latéral 8 mobile supérieur. The roof extension 16 extends in a plane offset from the plane of the roof extension 15 so as not to hinder the pivoting of the upper movable lateral plane panel 8.
Conformément à l’invention, le paravent radio-protecteur 1 comprend des moyens 17, 17a pour générer un marquage lumineux 18, 18a sur le sol, adapté pour délimiter une zone C considérée comme une zone de protection du côté de la face arrière de paravent 2. According to the invention, the radio-protective screen 1 comprises means 17, 17a for generating a luminous marking 18, 18a on the ground, adapted to delimit a zone C considered as a protection zone on the side of the rear face of the screen 2.
Dans le mode de réalisation illustré, les moyens en question pour générer un marquage lumineux sur le sol comprennent des moyens pour générer une ligne lumineuse 18, 18a dans le prolongement de l’un au moins des côtés latéraux de paravent 4, 51 , et de préférence dans le prolongement des deux côtés latéraux de paravent 4, 51 . In the illustrated embodiment, the means in question for generating a luminous marking on the ground comprise means for generating a luminous line 18, 18a in the extension of at least one of the lateral sides of the screen 4, 51, and preferably in the extension of the two lateral sides of the screen 4, 51.
Les lignes lumineuses 18, 18a s’étendent depuis les côtés latéraux de paravent 4, 51 , ou à proximité de ceux-ci (à quelques cm ou dizaines de cm), et cela sur quelques mètres de longueur (par exemple 1 à 4 m). The light lines 18, 18a extend from the lateral sides of the screen 4, 51, or close to them (a few cm or tens of cm), and this over a length of several meters (for example 1 to 4 m).
Pour cela, on utilise ici des dispositifs laser 17, 17a, adaptés pour générer un faisceau lumineux plan vertical 19, 19a dont la projection sur le sol forme une ligne lumineuse 18 et 18a sur chacun des côtés du paravent radio-protecteur 1 . For this, laser devices 17, 17a are used here, adapted to generate a vertical plane light beam 19, 19a, the projection of which on the ground forms a light line 18 and 18a on each side of the radio-protective screen 1.
Par exemple, on peut utiliser un modèle de laser XtrAlign HU LASER - 5HU52 green, fourni par la Société Allemande LAP LASER. For example, one can use a laser model XtrAlign HU LASER - 5HU52 green, supplied by the German company LAP LASER.
Pour limiter voire éviter toute gêne des personnes environnantes, les dispositifs laser 17, 17a sont ménagés sur le paravent 1 , le plus près possible du sol. To limit or even avoid any inconvenience to people nearby, the laser devices 17, 17a are placed on the screen 1, as close to the ground as possible.
Dans le mode de réalisation illustré, les dispositifs laser 17, 17a sont fixés sur les supports latéraux de roulettes 14 qui sont ménagés sur ou à proximité des côtés latéraux de paravent 4 et 51 . In the illustrated embodiment, the laser devices 17, 17a are attached to the side roller supports 14 which are provided on or near the side screen sides 4 and 51.
Dans une variante de réalisation les moyens pour générer un marquage lumineux sur le sol peuvent être fixés sur d’autres zones du paravent radio-protecteur 1 , par exemple directement sur les côté latéraux de paravent 4, 5 ou sur les panneaux plans latéraux fixes 6 et 7. De préférence, les moyens 17, 17a pour générer une ligne lumineuse 18, 18a sur le sol sont agencés pour générer cette ligne lumineuse dans, ou parallèlement à, l’un au moins des plans P, P’ des deux panneaux plans latéraux fixes 6 et 7, cela à 10° degrés près par rapport à chacun des plans P, P’. In an alternative embodiment, the means for generating a luminous marking on the ground can be fixed to other areas of the radio-protective screen 1, for example directly on the lateral sides of the screen 4, 5 or on the fixed lateral flat panels 6 and 7. Preferably, the means 17, 17a for generating a light line 18, 18a on the ground are arranged to generate this light line in, or parallel to, at least one of the planes P, P' of the two fixed lateral flat panels 6 and 7, this to within 10° degrees relative to each of the planes P, P'.
La longueur des lignes lumineuses 18, 18a et l’orientation des faisceaux lumineux 19, 19a qui les génèrent sont adaptés selon les caractéristiques de sécurité recherchées, et en fonction du positionnement classique du paravent 1 par rapport à la source de rayonnement située en regard de la face avant de paravent 3. The length of the light lines 18, 18a and the orientation of the light beams 19, 19a which generate them are adapted according to the desired safety characteristics, and according to the conventional positioning of the screen 1 relative to the radiation source located opposite the front face of the screen 3.
Cependant, les lignes lumineuses peuvent aussi être orientées de manière différente, en particulier en fonction du positionnement réalisé du paravent par rapport à la source du rayonnement ionisant. However, the light lines can also be oriented differently, in particular depending on the positioning of the screen in relation to the source of the ionizing radiation.
Les moyens pour générer le marquage lumineux sur le sol (ici les dispositifs laser 17, 17a) sont alimentés en électricité par une ou plusieurs structures de batterie 20. The means for generating the light marking on the ground (here the laser devices 17, 17a) are supplied with electricity by one or more battery structures 20.
La ou les structures de batteries 20 sont avantageusement fixées de manière amovible sur la face arrière de paravent 2. The battery structure(s) 20 are advantageously removably fixed to the rear face of the screen 2.
D’autre part, des moyens de commande 21 (par exemple en forme d’interrupteur on/off de type poussoir(s) à ressort ou tactile) permettent la commande de l’activation et de la désactivation des moyens 17, 17a pour générer un marquage lumineux sur le sol. On the other hand, control means 21 (for example in the form of an on/off switch of the spring or tactile push button type) allow the control of the activation and deactivation of the means 17, 17a to generate a luminous marking on the ground.
Ces moyens de commande 21 sont ménagés sur la face arrière de paravent 2 pour faciliter leur activation et leur désactivation par l’opérateur en position sur l’emplacement B. These control means 21 are provided on the rear face of screen 2 to facilitate their activation and deactivation by the operator in position at location B.
Il peut être prévu également de différentier le marquage lumineux sur le sol, selon que les moyens pour l’émission des rayonnements ionisants du type rayons X ou autres sont activés ou non. Par exemple, le marquage lumineux au sol peut être de couleur verte lorsque les moyens pour l’émission des rayonnements ionisants ne sont pas activés, et de couleur rouge lorsqu’ils sont activés. Ou encore le marquage lumineux au sol peut être prévu vibrant lorsque les moyens pour l’émission des rayonnements ionisants sont activés. It may also be provided to differentiate the luminous marking on the ground, depending on whether the means for emitting ionizing radiation of the X-ray or other type are activated or not. For example, the luminous marking on the ground may be green when the means for emitting ionizing radiation are not activated, and red when they are activated. Or the luminous marking on the ground may be provided to vibrate when the means for emitting ionizing radiation are activated.
De préférence, la zone de radioprotection C délimitée, affichée, ou mise en évidence, est définie entre les deux lignes lumineuses 18, 18a générées dans le prolongement des deux côtés latéraux de paravent 4 et 5. Il convient de noter que, dans certains cas particuliers, une seule ligne lumineuse générée dans le prolongement d’un seul des deux côtés latéraux de paravent 4 ou 5 peut s’avérer suffisante. Preferably, the delimited, displayed or highlighted radiation protection zone C is defined between the two light lines 18, 18a generated in the extension of the two lateral sides of screen 4 and 5. It should be noted that, in certain special cases, a single light line generated in the extension of only one of the two lateral sides of screen 4 or 5 may prove sufficient.
Encore à titre de variante, d’autres moyens que des dispositifs laser peuvent être utilisés pour générer le marquage lumineux sur le sol. Alternatively, means other than laser devices may be used to generate the light marking on the ground.
Par exemple, les moyens pour générer le marquage lumineux sur le sol peuvent comprendre une source de lumière classique associée à un masque comprenant une fente verticale (pour la réalisation d’un faisceau de lumière vertical dont la projection sur le sol forme la ligne de lumière recherchée). For example, the means for generating the light marking on the ground may comprise a conventional light source associated with a mask comprising a vertical slit (for producing a vertical beam of light whose projection on the ground forms the desired line of light).
Encore selon une variante de réalisation, les moyens pour générer le marquage lumineux sur le sol peuvent comprendre une pluralité de sources de lumière dont la projection au sol forme des points ou des petites surfaces éclairées qui délimitent le contour au moins partiel de la zone de protection, ou encore dont la projection au sol forme une ou plusieurs larges surfaces éclairées qui constitue(nt) ou qui détermine(nt) la zone de protection. Still according to an alternative embodiment, the means for generating the light marking on the ground may comprise a plurality of light sources whose projection on the ground forms points or small illuminated surfaces which delimit the at least partial outline of the protection zone, or whose projection on the ground forms one or more large illuminated surfaces which constitute(s) or which determine(s) the protection zone.
On peut également prévoir la présence de moyens de réglage pour régler l’orientation du ou des faisceaux de lumière générateurs du marquage lumineux sur le sol, pour adapter le marquage de la zone protégée en fonction des situations et des besoins. It is also possible to provide for the presence of adjustment means to adjust the orientation of the light beam(s) generating the luminous marking on the ground, to adapt the marking of the protected area according to situations and needs.
Les structures de paravent dépourvues de piètement de roulement sur le sol peuvent également être équipés des moyens décrits ci-dessus pour générer un marquage lumineux sur le sol, adapté pour délimiter une zone considérée comme une zone de protection du côté de leur face arrière. Screen structures without a rolling base on the ground can also be equipped with the means described above to generate luminous marking on the ground, suitable for delimiting an area considered to be a protection zone on the side of their rear face.
Le paravent radio-protecteur 1 conforme à l’invention permet, de manière simple, de visualiser une zone de radioprotection pour le personnel, en arrière du paravent, dans le but de leur assurer une protection efficace et de limiter tout stress lié au doute sur leur positionnement. The radiation-protective screen 1 in accordance with the invention makes it possible, in a simple manner, to visualize a radiation protection zone for personnel, behind the screen, with the aim of ensuring them effective protection and limiting any stress linked to doubt about their positioning.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2308531A FR3152079B1 (en) | 2023-08-07 | 2023-08-07 | Radio-protective screen |
| FRFR2308531 | 2023-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2025031996A1 true WO2025031996A1 (en) | 2025-02-13 |
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ID=88690228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/072036 Pending WO2025031996A1 (en) | 2023-08-07 | 2024-08-02 | Radioprotective screen |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3152079B1 (en) |
| WO (1) | WO2025031996A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3308297A (en) | 1964-02-12 | 1967-03-07 | Joseph S Mansker | X-ray protective shield having an aperture for the passage of instruments manipulated by the operator |
| US20060076522A1 (en) | 2004-04-07 | 2006-04-13 | Goldstein James A | Radiation barrier |
| FR2915868A1 (en) | 2007-05-09 | 2008-11-14 | Lemer Prot Anti X Par Abrevati | STERILE COVER FOR PARAVENT IN RADIOPROTECTIVE MATERIAL |
| WO2009156660A2 (en) | 2008-05-30 | 2009-12-30 | Lemer Protection Anti-X Par Abreviation Societe Lemer Pax | Improvement to screens for protection against ionising radiation emissions |
| US20120049093A1 (en) | 2010-08-25 | 2012-03-01 | University Of Cincinnati | Radiation shielding devices |
| EP3555892A1 (en) | 2016-12-14 | 2019-10-23 | Lemer Protection Anti-X Par Abreviation Societe Lemer Pax | Movable radiation protection screen |
-
2023
- 2023-08-07 FR FR2308531A patent/FR3152079B1/en active Active
-
2024
- 2024-08-02 WO PCT/EP2024/072036 patent/WO2025031996A1/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3308297A (en) | 1964-02-12 | 1967-03-07 | Joseph S Mansker | X-ray protective shield having an aperture for the passage of instruments manipulated by the operator |
| US20060076522A1 (en) | 2004-04-07 | 2006-04-13 | Goldstein James A | Radiation barrier |
| FR2915868A1 (en) | 2007-05-09 | 2008-11-14 | Lemer Prot Anti X Par Abrevati | STERILE COVER FOR PARAVENT IN RADIOPROTECTIVE MATERIAL |
| WO2009156660A2 (en) | 2008-05-30 | 2009-12-30 | Lemer Protection Anti-X Par Abreviation Societe Lemer Pax | Improvement to screens for protection against ionising radiation emissions |
| US20120049093A1 (en) | 2010-08-25 | 2012-03-01 | University Of Cincinnati | Radiation shielding devices |
| EP3555892A1 (en) | 2016-12-14 | 2019-10-23 | Lemer Protection Anti-X Par Abreviation Societe Lemer Pax | Movable radiation protection screen |
| EP3555892B1 (en) * | 2016-12-14 | 2021-10-20 | Lemer Pax | Movable radiation protection screen |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3152079B1 (en) | 2025-08-01 |
| FR3152079A1 (en) | 2025-02-14 |
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