FR2685058A1 - Impact safety device and radiology system equipped with such a device - Google Patents

Impact safety device and radiology system equipped with such a device Download PDF

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Publication number
FR2685058A1
FR2685058A1 FR9115546A FR9115546A FR2685058A1 FR 2685058 A1 FR2685058 A1 FR 2685058A1 FR 9115546 A FR9115546 A FR 9115546A FR 9115546 A FR9115546 A FR 9115546A FR 2685058 A1 FR2685058 A1 FR 2685058A1
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Prior art keywords
mini
safety device
impact
elastic supports
equipment
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FR9115546A
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French (fr)
Inventor
Berthet Jean-Paul
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General Electric CGR SA
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General Electric CGR SA
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Priority to FR9115546A priority Critical patent/FR2685058A1/en
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Withdrawn legal-status Critical Current

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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
    • A61B6/102—Protection against mechanical damage, e.g. anti-collision devices

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The present invention relates to an impact safety device, fixed to moving equipment (1) likely to come into collision with a solid body (3) and comprising: - a base (4) secured to the equipment (1) on which are fixed two elastic supports (5) and two mini breakers (6); - a floating plate (7), fixed to the base (4) by struts (8) set into the centre of the elastic supports (5) and comprising tabs (9) which, in the normal position, bear on the mini breakers (6) which they engage by contact, this plate being intended, in the event of impact, to pivot about the elastic supports (5) triggering a mini breaker (6) by detaching from one of the tabs (9); - a flexible cover (10) completely protecting the said safety device and intended to distribute the impact over the entire surface of the base (4). The invention applies particularly to radiology systems.

Description

DISPOSITIF DE SECURITE D'IMPACT ET SYSTEME DE RADIOLOGIE
EQUIPE D'UN TEL DISPOSITIF
L'invention concerne un dispositif de sécurité d'impact adapté à un équipement en mouvement susceptible d'entrer en collision avec un corps solide. L'invention s'applique particulièrement à des systèmes de radiologie complexes, comprenant des équipements. lourds et encombrants qui présentent un danger de collision avec le patient examiné, le sol ou encore d'autres équipements. Pour remédier à ces risques de -collision, une solution consiste à intercaler entre l'équipement en mouvement et l'obstacle, un dispositif électro-mécanique commandant l'arrêt du mécanisme mettant en mouvement ltequipement. IMPACT SAFETY DEVICE AND RADIOLOGY SYSTEM
EQUIPPED WITH SUCH A DEVICE
The invention relates to an impact safety device suitable for moving equipment capable of colliding with a solid body. The invention is particularly applicable to complex radiology systems, comprising equipment. heavy and bulky which presents a danger of collision with the patient being examined, the ground or other equipment. To remedy these risks of collision, a solution consists in interposing between the moving equipment and the obstacle, an electro-mechanical device controlling the stopping of the mechanism putting the equipment in motion.

Actuellement, il existe trois types de dispositif de sécurité d'impact. Selon un premier type, le dispositif est à air commandé, doté de membranes souples renfermant de l'air comprimé. Un contact électropneumatique envoie un signal électrique de coupure du mécanisme, en cas de choc. Currently, there are three types of impact safety devices. According to a first type, the device is air-controlled, provided with flexible membranes containing compressed air. An electropneumatic contact sends an electrical signal to cut the mechanism in the event of an impact.

Selon un second type, le dispositif comprend un contact multiposition et une antenne. According to a second type, the device comprises a multi-position contact and an antenna.

Enfin un troisième type de dispositif de sécurité comporte des contacteurs associés à un capot rigide et lourd placé sur l'équipement à protéger, auquel il est suspendu par un ressort. Un des inconvénients vient de ce que le dispositif ne fonctionne bien que pour des impacts agissant dans la direction du ressort. Finally, a third type of safety device comprises contactors associated with a rigid and heavy cover placed on the equipment to be protected, to which it is suspended by a spring. One of the drawbacks is that the device only works well for impacts acting in the direction of the spring.

Le but de la présente invention est de proposer un dispositif de sécurité fiable pour des impacts venant de toutes directions. The object of the present invention is to provide a reliable safety device for impacts coming from all directions.

Pour cela, l'objet de la présente invention est un dispositif de sécurité d'impact, fixé sur la partie d'un équipement en mouvement, susceptible d'entrer en collision avec un corps solide et comprenant
- Une embase solidaire de l'équipement, sur laquelle sont montés deux supports élastiques et deux mini-rupteurs
- Une plaque flottante fixée à l'embase par des colonnettes encastrées au centre des supports élastiques et comportant des pattes disposées en face des mini-rupteurs et les enclenchant en fonctionnement normal, ladite plaque étant destinée à pivoter autour des supports en cas de collision
- Un capot souple protégeant le dispositif de sécurité et destiné à répartir l'impact sur toute la surface de l'embase.For this, the object of the present invention is an impact safety device, fixed to the part of a moving equipment, capable of colliding with a solid body and comprising
- A base fixed to the equipment, on which are mounted two elastic supports and two mini-switches
- A floating plate fixed to the base by balusters embedded in the center of the elastic supports and comprising tabs arranged opposite the mini-switches and engaging them in normal operation, said plate being intended to pivot around the supports in the event of a collision
- A flexible cover protecting the safety device and intended to distribute the impact over the entire surface of the base.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante, d'un exemple de réalisation illustré par les dessins ci-annexés dans lesquels - La figure 1 est une vue en coupe transversale du dispositif de sécurité selon l'invention , placé sur un équipement ; - La figure 2 est une vue en coupe transversale du dispositif selon l'invention, fonctionnant lors d'une collision avec un corps solide ; - La figure 3 est une vue de face du dispositif selon l'invention. Other characteristics and advantages of the invention will appear on reading the following description, of an exemplary embodiment illustrated by the attached drawings in which - Figure 1 is a cross-sectional view of the safety device according to the invention, placed on equipment; - Figure 2 is a cross-sectional view of the device according to the invention, operating during a collision with a solid body; - Figure 3 is a front view of the device according to the invention.

Sur la figure 1, est représenté, en coupe transversale, un équipement 1 destiné à se déplacer dans l'espace sous l'action d'un mécanisme, non représenté. In Figure 1, there is shown, in cross section, an equipment 1 intended to move in space under the action of a mechanism, not shown.

Sa face 2 susceptible d'entrer en collision avec un corps solide 3 est équipée d'un dispositif de sécurité d'impact selon l'invention. Ce dispositif comprend une embase 4 solidaire de l'équipement 1, sur laquelle sont fixés d'une part deux supports élastiques 5 et d'autre part deux mini-rupteurs 6. Chaque support élastique 5 est constitué d'une plaquette 51 rigide en métal, entourant une membrane 52 circulaire souple en caoutchouc, percée d'un trou doté d'un petit tube rigide 53. Chaque mini-rupteur 6 joue le rôle d'interrupteur électrique, commandé à l'aide d'un bouton électrique.Its face 2 capable of colliding with a solid body 3 is equipped with an impact safety device according to the invention. This device comprises a base 4 secured to the equipment 1, on which are fixed on the one hand two elastic supports 5 and on the other hand two mini-switches 6. Each elastic support 5 consists of a rigid plate 51 made of metal , surrounding a flexible circular rubber membrane 52, pierced with a hole provided with a small rigid tube 53. Each mini-breaker 6 plays the role of electric switch, controlled by means of an electric button.

Le dispositif de sécurité comprend également une plaque flottante 7, disposée parallèlement à la face 2 de l'équipement 1 en mouvement susceptible d'être touchée. Cette plaque 7 est fixée à l'embase 4 par des colonnettes 8 encastrées au centre des supports élastiques 5, et vissées dans les petits tubes 53. Elle comporte des pattes 9 qui, en position normale, sont en appui sur les mini-rupteurs 6, les enclenchant donc par contact pendant le déplacement de l'équipement 1. The safety device also comprises a floating plate 7, arranged parallel to the face 2 of the equipment 1 in movement likely to be touched. This plate 7 is fixed to the base 4 by posts 8 embedded in the center of the elastic supports 5, and screwed into the small tubes 53. It has lugs 9 which, in normal position, are supported on the mini-breakers 6 , thus engaging them by contact during the movement of the equipment 1.

Le dispositif de sécurité comprend enfin un capot 10 souple, parallèle à la plaque 7, destiné à le protéger totalement et à répartir l'impact éventuel sur toute la surface de l'embase 4. Le capot 10 réalisé à partir d'une plaque rigide de faible épaisseur et de mêmes dimensions que la face 2 de l'équipement 1, entourée d'une membrane 11 souple qui adhère sur le pourtour 12 de ladite face 2. Le capot peut-être accroché par des moyens du type velcro à la plaque flottante 7. The safety device finally comprises a flexible cover 10, parallel to the plate 7, intended to completely protect it and to distribute the possible impact over the entire surface of the base 4. The cover 10 produced from a rigid plate thin and of the same dimensions as the face 2 of the equipment 1, surrounded by a flexible membrane 11 which adheres to the periphery 12 of said face 2. The cover can be hung by means of the velcro type on the plate floating 7.

La figure 2 montre un cas de collision entre l'équipement 1 et le corps solide 3, qui touche le capot souple 10 en un point d'impact A. Le capot 10 se déforme, notamment par écrasement de la membrane périphérique 11 et oblige la plaque flottante 7 à pivoter autour des supports élastiques 5 de sorte qu'au moins une des pattes 9 ne soit plus en contact avec un mini-rupteur 5. Ce dernier se déclenche, envoyant un signal électrique à un circuit électronique de commande d'un logiciel par exemple, qui décide alors l'arrêt du déplacement de l'équipement 1. Pour couvrir toutes les possibilités de collision, un seul support élastique 5 supportant la plaque flottante 7 ne permettrait pas de détecter une collision se produisant dans l'axe du mini-rupteur 6. Par contre, trois supports élastiques équivaudraient à un contact plan, rendant le dispositif de sécurité trop stable. C'est pourquoi deux supports élastiques associés à deux mini-rupteurs permettent de détecter tout impact, quelque soit sa direction. FIG. 2 shows a case of collision between the equipment 1 and the solid body 3, which touches the flexible cover 10 at an impact point A. The cover 10 is deformed, in particular by crushing the peripheral membrane 11 and forces the floating plate 7 to pivot around the elastic supports 5 so that at least one of the tabs 9 is no longer in contact with a mini-breaker 5. The latter trips, sending an electrical signal to an electronic circuit for controlling a software for example, which then decides to stop the movement of the equipment 1. To cover all collision possibilities, a single elastic support 5 supporting the floating plate 7 would not make it possible to detect a collision occurring in the axis of the mini-interrupter 6. On the other hand, three elastic supports would be equivalent to a flat contact, making the safety device too stable. This is why two elastic supports associated with two mini-breakers make it possible to detect any impact, whatever its direction.

Une détection optimale des collisions est obtenue lorsque les droites, joignant respectivement les projections sur un même plan des deux mini-rupteurs et des deux supports élastiques, se coupent selon un angle a non négligeable comme le montre la figure 3, qui est une vue de face du dispositif de détection. De plus, la plaque flottante supportant les rupteurs et les supports ne doit pas pivoter autour de l'axe reliant les deux mini-rupteurs ; aussi faut-il éloigner au maximum les supports élastiques des mini-rupteurs pour que l'impact sur ces derniers soit franc. Optimal collision detection is obtained when the lines, respectively joining the projections on the same plane of the two mini-breakers and the two elastic supports, intersect at a significant angle a as shown in Figure 3, which is a view of face of the detection device. In addition, the floating plate supporting the switches and the supports must not pivot around the axis connecting the two mini-switches; also it is necessary to move the elastic supports as far as possible from the mini-breakers so that the impact on the latter is frank.

le dispositif de sécurité d'impact selon l'invention offre l'avantage d'être simple à réaliser et fiable en raison de l'utilisation de mini-rupteurs simples. Il présente de plus un encombrement réduit, dû à l'utilisation de supports élastiques. Enfin, l'intégration du capot souple dans un habillage est aisée et très intéressante dans les applications à des systèmes de radiologie. L'esthétique de l'ensemble est ainsi gardée vis à vis du patient et l'hygiène est respectée puisque le nettoyage de l'équipement de radiologie est ainsi facilité, ceci étant indispensable en milieu hospitalier.  the impact safety device according to the invention offers the advantage of being simple to produce and reliable due to the use of simple mini-switches. It also has a reduced size, due to the use of elastic supports. Finally, the integration of the flexible cover into a covering is easy and very advantageous in applications to radiology systems. The esthetics of the whole is thus kept with respect to the patient and hygiene is respected since the cleaning of the radiology equipment is thus facilitated, this being essential in a hospital environment.

Claims (5)

REVENDICATIONS 1 - Dispositif de sécurité d'impact, fixé sur la face (2) d'un équipement (1) en mouvement, susceptible d'entrer en collision avec un corps solide (3), caractérisé en ce qu'il comprend - une embase (4) solidaire de l'équipement (1) sur laquelle sont fixés deux supports élastiques (5) et deux mini-rupteurs (6) ; - une plaque (7) flottante, fixée à l'embase (4) par des colonnettes (8), encastrées au centre des supports élastiques (5), et comportant des pattes (9) qui, en position normale, sont en appui sur les mini-rupteurs (6) qu'elles enclenchent par contact, destinée, en cas d'impact, à pivoter autour des support élastiques (5) en déclenchant un mini-rupteur (6) par décollement d'une de pattes (9). 1 - Impact safety device, fixed to the face (2) of a piece of equipment (1) in movement, capable of colliding with a solid body (3), characterized in that it comprises - a base (4) integral with the equipment (1) on which two elastic supports (5) and two mini-breakers (6) are fixed; - a floating plate (7), fixed to the base (4) by columns (8), embedded in the center of the elastic supports (5), and comprising tabs (9) which, in normal position, are supported on the mini-breakers (6) which they engage by contact, intended, in the event of impact, to pivot around the elastic supports (5) by triggering a mini-breaker (6) by detachment of one of the legs (9) . - Un capot souple (10), protégeant complètement ledit dispositif de sécurité et destiné à répartir l'impact sur toute la surface de l'embase (4).- A flexible cover (10), completely protecting said safety device and intended to distribute the impact over the entire surface of the base (4). 2 - Dispositif de sécurité selon la revendication 1, caractérisé en ce que les deux supports élastiques (5) et les deux mini-rupteurs (6) sont disposés de telle sorte que les droites, joignant respectivement les projections sur un même plan des deux supports (5) et des deux mini-rupteurs (6), se coupent selon un angle a non négligeable. 2 - Safety device according to claim 1, characterized in that the two elastic supports (5) and the two mini-switches (6) are arranged so that the straight lines, respectively joining the projections on the same plane of the two supports (5) and two mini-breakers (6), intersect at an angle a significant. 3 - Dispositif de sécurité selon la revendication 2, caractérisé en ce que les supports élastiques (5) doivent être éloignés au maximum des mini-rupteurs (6). 3 - Safety device according to claim 2, characterized in that the elastic supports (5) must be separated as far as possible from the mini-breakers (6). 4 - Dispositif de sécurité selon la revendication 1, caractérisé en ce que le capot souple (10) est réalisé à partir d'une plaque rigide de faible épaisseur et de mêmes dimensions que la face (2) de l'équipement, entourée d'une membrane (11) souple qui adhère sur le pourtour (12) de ladite face (2). 4 - Safety device according to claim 1, characterized in that the flexible cover (10) is made from a rigid plate of small thickness and the same dimensions as the face (2) of the equipment, surrounded by a flexible membrane (11) which adheres to the periphery (12) of said face (2). 5 - Système de radiologie caractérisé en ce qu'il est doté d'un dispositif de sécurité d'impact selon l'une des revendications précédentes.  5 - Radiology system characterized in that it is provided with an impact safety device according to one of the preceding claims.
FR9115546A 1991-12-13 1991-12-13 Impact safety device and radiology system equipped with such a device Withdrawn FR2685058A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9115546A FR2685058A1 (en) 1991-12-13 1991-12-13 Impact safety device and radiology system equipped with such a device

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FR9115546A FR2685058A1 (en) 1991-12-13 1991-12-13 Impact safety device and radiology system equipped with such a device

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FR2685058A1 true FR2685058A1 (en) 1993-06-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808858A1 (en) * 2000-05-09 2001-11-16 Ge Med Sys Global Tech Co Llc COVERING DEVICE WITH TWO MOBILE COVER ELEMENTS WITH RESPECT TO THE OTHER AND A FLEXIBLE JUNCTION, AND RADIOLOGY APPARATUS COMPRISING A DIGITAL SENSOR SYSTEM PROVIDED WITH SUCH A DEVICE
US8661584B1 (en) 2012-09-06 2014-03-04 Samsung Electronics Co., Ltd. Device for controlling motion of anti-collision switch and medical diagnosis apparatus employing the same
CN106110521A (en) * 2016-07-29 2016-11-16 武汉新奥沃医疗新技术有限公司 A kind of touch device for the anti-of head radiotherapy equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967931C (en) * 1950-06-04 1957-12-27 Mueller C H F Ag Safety device on auxiliary devices moved by means of a servo motor drive for X-ray diagnostic examination devices
US3934147A (en) * 1973-02-13 1976-01-20 Siemens Aktiengesellschaft Patient support with weight-sensitive spring scale for controlling motor operation
DE8804468U1 (en) * 1988-04-05 1989-08-03 Siemens AG, 1000 Berlin und 8000 München Collision protection for an X-ray diagnostic device
US5056365A (en) * 1990-05-31 1991-10-15 General Electric Company Collision sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967931C (en) * 1950-06-04 1957-12-27 Mueller C H F Ag Safety device on auxiliary devices moved by means of a servo motor drive for X-ray diagnostic examination devices
US3934147A (en) * 1973-02-13 1976-01-20 Siemens Aktiengesellschaft Patient support with weight-sensitive spring scale for controlling motor operation
DE8804468U1 (en) * 1988-04-05 1989-08-03 Siemens AG, 1000 Berlin und 8000 München Collision protection for an X-ray diagnostic device
US5056365A (en) * 1990-05-31 1991-10-15 General Electric Company Collision sensor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808858A1 (en) * 2000-05-09 2001-11-16 Ge Med Sys Global Tech Co Llc COVERING DEVICE WITH TWO MOBILE COVER ELEMENTS WITH RESPECT TO THE OTHER AND A FLEXIBLE JUNCTION, AND RADIOLOGY APPARATUS COMPRISING A DIGITAL SENSOR SYSTEM PROVIDED WITH SUCH A DEVICE
US6550964B2 (en) 2000-05-09 2003-04-22 Ge Medical Systems Global Technology Company Llc Covering device for cover elements which are mobile with relation to the other and radiology machine having such a covering device
US8661584B1 (en) 2012-09-06 2014-03-04 Samsung Electronics Co., Ltd. Device for controlling motion of anti-collision switch and medical diagnosis apparatus employing the same
EP2705796A1 (en) * 2012-09-06 2014-03-12 Samsung Electronics Co., Ltd Device for controlling motion of anti-collision switch and medical diagnosis apparatus employing the same
CN103654836A (en) * 2012-09-06 2014-03-26 三星电子株式会社 Device for controlling motion of anti-collision switch and medical diagnosis apparatus employing the same
US9057427B2 (en) 2012-09-06 2015-06-16 Samsung Electronics Co., Ltd. Device for controlling motion of anti-collision switch and medical diagnosis apparatus employing the same
CN106110521A (en) * 2016-07-29 2016-11-16 武汉新奥沃医疗新技术有限公司 A kind of touch device for the anti-of head radiotherapy equipment

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