EP2063995A1 - Apparatus for grinding and disinfecting waste, especially medical waste - Google Patents

Apparatus for grinding and disinfecting waste, especially medical waste

Info

Publication number
EP2063995A1
EP2063995A1 EP07788914A EP07788914A EP2063995A1 EP 2063995 A1 EP2063995 A1 EP 2063995A1 EP 07788914 A EP07788914 A EP 07788914A EP 07788914 A EP07788914 A EP 07788914A EP 2063995 A1 EP2063995 A1 EP 2063995A1
Authority
EP
European Patent Office
Prior art keywords
container
waste
base
grinding
shafts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07788914A
Other languages
German (de)
French (fr)
Inventor
Patrick Hengl
Emmanuel Hengl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TECHNOLOGIES ENVIRONNEMENT ET MEDICAL
Original Assignee
TECHNOLOGIES ENVIRONNEMENT ET MEDICAL
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 TECHNOLOGIES ENVIRONNEMENT ET MEDICAL filed Critical TECHNOLOGIES ENVIRONNEMENT ET MEDICAL
Publication of EP2063995A1 publication Critical patent/EP2063995A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00—Methods specially adapted for refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
    • B02C18/12—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged below container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/24—Drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
    • B02C19/0075—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for specially adapted for disintegrating medical waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/0075—Disposal of medical waste

Definitions

  • the present invention relates to an apparatus for grinding and / or disinfecting waste, particularly medical waste.
  • Medical waste must be treated prior to disposal, especially disinfected and crushed to be neither recognizable nor reusable.
  • International Patent Application No. WO2004009144 there is known a device for grinding and / or disinfecting medical waste comprising three superimposed units, namely an upper hopper for the supply of waste, a median compartment for grinding, series of counter-rotating knives, and a lower receptacle for receiving, compaction and disposal of crushed waste.
  • This device gives satisfaction in practice. However, it is suitable for the treatment of a relatively large quantity of waste and is not able to meet the needs of people with smaller quantities of waste to be treated, for example a self-medicated person.
  • the main objective of the present invention is to overcome this disadvantage, by providing an apparatus adapted to such needs, without compromising the treatment conditions of this type of waste.
  • said processing systems involve the use of a large amount of specific packaging, which certainly has the advantage of isolating the waste from their source, but which have the disadvantage of constituting an additional amount of waste, before also be treated.
  • These packages are in themselves relatively expensive and their treatment involves a significant additional cost.
  • the apparatus concerned comprises, in a manner known per se, waste reception means, waste grinding means and / or means for disinfecting said waste.
  • the apparatus comprises a body and a removable container; the body comprises a receiving base of the removable container, drive means accessible from said base, and / or the disinfection means and a disinfecting fluid introduction port in said removable container, opening into said base; the removable container is said means for receiving waste; it comprises the grinding means, which come into coupling with said drive means when the container is placed on said base, and / or an orifice for introducing the disinfection fluid into the container, which comes into communication with the orifice corresponding opening in said base.
  • the container can thus be separated from the body of the apparatus and transported by a user for the collection of waste; once the waste collected, the container is placed on the body of the device, which allows the coupling of the grinding means with the drive means and / or the communication of the respective orifices of the container and the body of the device.
  • the waste can then be ground by the grinding means and / or the disinfecting fluid can be introduced into the container through said orifices.
  • the container can again be separated from the body of the device to be reversed in order to evacuate the waste, in a suitable collection container, which can be a simple trash.
  • This device is thus perfectly adapted to the needs of people with relatively small quantities of waste to be treated; in particular, the removable container can be transported by the user, for a collection of waste in several locations, or for waste collection as and when the generation of waste, in different locations. In addition, this device does not use special additional packaging.
  • the disinfection means comprise means for generating the disinfection fluid under pressure, which promotes the disinfection of the crushed waste.
  • This fluid is in particular water vapor.
  • the container could include a closure lid, permanently connected to it; however, in the case of pressurized disinfection fluid, this lid should be such as to withstand the pressure of the fluid and would therefore unnecessarily increase the weight of the container; therefore, preferably, the removable container does not include such cover and it is the body of the device which comprises a clean cover to close off the removable container at the time of introduction of the pressure disinfection fluid into the container; the container receives, during the time of collection of waste, a sealing cap, which can be lifted for the insertion of the waste or comprising an opening for this purpose, this seal being made of a crushable material and being intended to be ground with the waste .
  • said body comprises a projection overhanging said base, which comprises at least one screw / nut assembly for moving said lid relative to the corresponding opening of the container and means for driving in rotation of the screw and / or the nut of each set relative to each other to achieve the displacement of the cover.
  • the body may comprise three screws integral with the cover and three nuts integral with gears actuated by a chain itself driven by a motor.
  • said base and said container comprise a discharge orifice of a possible exudate generated by the grinding of waste. This orifice may be the same as that used for introducing the disinfection fluid into the container.
  • the container or said lid, comprises means for discharging the disinfection fluid under pressure after disinfection, which may include a filter.
  • means for discharging the disinfection fluid under pressure after disinfection which may include a filter.
  • said drive means comprised by the body consist of two coaxial shafts engaged one inside the other; - Said grinding means that comprises the removable container are constituted by two knives integral with two coaxial shafts engaged one into the other, each of these shafts being integral with a knife and being intended to come into engagement, during the placing the container on said base, with one of the two drive shafts that includes the body.
  • the two drive shafts included in the body are preferably driven in opposite directions of rotation.
  • one of these shafts is connected to a first gear wheel and the other of these shafts is connected to a second gear wheel, and a primary drive shaft engages simultaneously with each of these wheels. toothed, in particular by means of a pinion which it comprises.
  • the apparatus comprises a display allowing in particular to indicate to the user the operations to be performed, the progress of these operations or alert messages.
  • the apparatus may also comprise a printer delivering a printout relating to the various parameters of the grinding and / or the apparatus.
  • Figure 1 is a perspective view, a removable container it comprises being placed on a base of a body which it also comprises;
  • Figure 2 is a view similar to Figure 1, the removable container being separated from the body and this body being visible only partially;
  • Figure 3 is a perspective view of the organs that includes the body, and the container;
  • Figure 4 is a partially exploded perspective view of various members that comprise the body and the container, some parts of the apparatus having been masked;
  • Figure 5 is a view of said base and the base portion of the container, in section through the axis of drive shafts that includes the base and the container;
  • Figure 6 is an exploded perspective view of a subassembly that includes the body, and
  • Figure 7 is a functional view of fluid circuits that includes the body.
  • Figures 1 and 2 show an apparatus 1 for grinding and / or disinfecting medical waste, comprising a body 2 and a removable container 3.
  • the body 2 comprises a base 4 for receiving the removable container 3, an upper projection 5 overhanging the base 4, a display 6 and a printer 7.
  • the base 4 comprises two shafts 8 protruding from it and an orifice 9.
  • the removable container 3 with a capacity of six to seven liters, has a cylindrical body 10, open on top, and a base 11 housing a valve 12 (see Figure 5).
  • This valve 12 is in communication with a orifice 13 opening into the bottom of the container 3 and comprises a lower orifice which comes into communication with the orifice 9 when the container 3 is placed on the base 4.
  • the valve 12 is controlled by an operating key 14.
  • the container 3 can be fixed detachably relative to the body 2 by means of a bayonet system (not shown), this system ensuring the arrival of the valve 12 facing the orifice 9.
  • the body 2 contains a support plate 15 on which are fixed two brackets 16.
  • the support plate 15 comprises, on its upper face, a motor 17 for driving the shafts 8, a generator 18 and the printer 7, and on its underside, a frame 19 comprising the transmission members between the motor 17 and these shafts 8.
  • the plate 15 also comprises various other organs, in particular an organ control unit. above, fluid lines and other electrical connection cables, not shown for the sake of clarity of the drawing.
  • the brackets 16 comprise the display 4 and an assembly for actuating a lid 25 for closing the container 3, this assembly being housed in the projection 6.
  • the motor 17, the generator 18 and the printer 7 are of known type, and are therefore not particularly described in detail.
  • the motor shaft 17 drives a pulley 20 mounted on the frame 19, by means of a belt passing through a slot in the plate 15.
  • this pulley 20 is mounted on a shaft driving a first conical gear 21, which is engaged with a lower gear 22 and an upper gear 23.
  • the two shafts 8 are coaxial and engaged. one in the other, the inner shaft 8 being integral with the lower wheel 22 while the outer shaft 8 is integral with the upper gear 23.
  • a pinion 24 similar to the pinion 21 is located opposite the pinion 21, coaxially to the latter.
  • the drive of the motor 17 carries a drive of the two wheels 22, 23, and thus the shafts 8, in opposite directions from one another.
  • the actuating assembly of the cover 25 comprises a support plate mounted on the brackets 16, comprising a motor 26 and three sets 27 of Maneuvering the lid 25.
  • Each set 27 comprises a nut 30 rotatably mounted on said plate by means of a bearing 31, and a threaded rod 32 secured to the lid 25 by means of a pin 33.
  • the motor 26 drives a chain 35 (Fictitiously represented as having a constant section, for the sake of simplification of the drawing) around three toothed portions (fictitiously represented as cylindrical), integral with the nuts 30.
  • Said support plate further comprises a return roller 36 ensuring an arc of sufficient winding of the chain 35 around the toothed portion of the nut 30 in the background.
  • the container 3 comprises two coaxial shafts 40 engaged one into the other, which can be coupled to the respective shafts 8 when placing the container 3 on the base 2.
  • These couplings can be made by simply engaging the lower ends of the shafts 40 on the upper ends of the shafts 8, the coupling being made by engaging end zones of complementary shape.
  • Each upper end of the shafts 40 opens into the bottom of the container 3 and comprises a knife 41, the linkage of the knives 41 with each of the shafts 40 being formed by means of keys held by hubs 42.
  • FIG. 7 shows the pipe 45 for supplying water to the steam generator 18 via a valve 46, the pipe 47 for feeding the vapor inside the container 3, via the orifices 9 and 13, the drain line 48 of the exudates, equipped with a valve 49, and the pipe 50, equipped with a valve 51 and a filter 52, connected to a vacuum source 53 allowing a setting empty of the container 3 and evacuation of the vapor out of this container.
  • the container 3 can be separated from the body 2 and be transported by a user for the collection of waste; during this transport, the valve 12 is closed and the upper opening of the container 3 receives a closing cap (not shown), comprising a narrow slot for the insertion of the waste.
  • This lid is made of a material that can be ground by the knives 41, in particular a thin synthetic material, and comprises a flange for its removable clipping on said opening of the container 3.
  • the container 3 is evacuated via the vacuum source 53 and the vapor is introduced inside the container 3 via said orifices 9, 13.
  • the duration of the treatment can in particular be 18 minutes, at 135.degree. C.
  • the exudates and the steam are evacuated, and the container 3 can again be separated from the body 2 so that it can be overturned in order to evacuate the waste in a suitable collection container, which can be a simple trash.
  • the container 3 is, after rinsing, placed in the inverted position on the base 4, for a final decontamination by means of steam and optionally a bactericide.
  • the invention provides an apparatus with the decisive advantages:

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

This apparatus (1) comprises means (3) for receiving the waste, means (17, 41) for grinding the waste and/or means (18) for disinfecting this waste. According to the invention, the apparatus (1) comprises a body (2) and a removable receptacle (3); the body (2) comprises a seat (4) for receiving the removable receptacle (3), drive means (8) accessible from said seat (4), and/or the disinfecting means (18) and an orifice (9) through which a disinfecting fluid is introduced into said removable receptacle (3) and which opens into said seat (4); the removable receptacle (3) constitutes said means for receiving the waste; it comprises the grinding means (41, 40), which come into engagement with said drive means (8) when the receptacle (3) is placed on said seat (4), and/or an orifice (13) through which the disinfecting fluid is introduced into the receptacle (3) and which comes into communication with the corresponding orifice (9) opening into said seat (4).

Description

APPAREIL DE BROYAGE ET DE DESINFECTION DE DECHETS, APPARATUS FOR GRINDING AND DISINFECTING WASTE,
NOTAMMENT MEDICAUXNOTABLY MEDICAL
La présente invention concerne un appareil de broyage et/ou de désinfection de déchets, notamment médicaux. Les déchets médicaux doivent être traités avant leur élimination, en particulier être désinfectés et broyés pour être ni reconnaissables ni réutilisables. Par la demande de brevet internationale N° WO2004009144, il est connu un appareil de broyage et/ou de désinfection de déchets médicaux comprenant trois unités superposées, à savoir une trémie supérieure d'alimentation en déchets, un compartiment médian de broyage, à séries de couteaux contrarotatifs, et un réceptacle inférieur de réception, compaction et évacuation des déchets broyés.The present invention relates to an apparatus for grinding and / or disinfecting waste, particularly medical waste. Medical waste must be treated prior to disposal, especially disinfected and crushed to be neither recognizable nor reusable. By International Patent Application No. WO2004009144, there is known a device for grinding and / or disinfecting medical waste comprising three superimposed units, namely an upper hopper for the supply of waste, a median compartment for grinding, series of counter-rotating knives, and a lower receptacle for receiving, compaction and disposal of crushed waste.
Cet appareil donne satisfaction en pratique. Il est cependant adapté au traitement d'une quantité relativement importante de déchets et n'est pas à même de répondre aux besoins de personnes ayant des quantités plus réduites de déchets à traiter, par exemple une personne auto-médicamentéeThis device gives satisfaction in practice. However, it is suitable for the treatment of a relatively large quantity of waste and is not able to meet the needs of people with smaller quantities of waste to be treated, for example a self-medicated person.
(notamment une personne diabétique ou dialysée), un laboratoire d'analyse de taille réduite, un cabinet d'un ou plusieurs praticiens, notamment d'infirmière(s), de dentiste(s) ou de vétérinaire(s). Ces personnes sont obligées d'utiliser des filières relativement contraignantes et coûteuses pour traiter leurs déchets.(including a diabetic or dialysis patient), a small analytical laboratory, a practice of one or more practitioners, including nurse (s), dentist (s) or veterinarian (s). These people are forced to use relatively restrictive and expensive channels to treat their waste.
L'objectif principal de la présente invention est de remédier à cet inconvénient, en fournissant un appareil adapté à de tels besoins, et ce sans amoindrissement des conditions de traitement de ce type de déchets. Par ailleurs, lesdites filières de traitement impliquent une utilisation d'une quantité importante d'emballages spécifiques, qui ont certes pour avantage d'isoler les déchets dès leur source, mais qui ont en revanche pour inconvénient de constituer une quantité supplémentaire de déchets, devant également être traitée. Ces emballages sont en eux-mêmes relativement coûteux et leur traitement implique un surcoût notable.The main objective of the present invention is to overcome this disadvantage, by providing an apparatus adapted to such needs, without compromising the treatment conditions of this type of waste. Moreover, said processing systems involve the use of a large amount of specific packaging, which certainly has the advantage of isolating the waste from their source, but which have the disadvantage of constituting an additional amount of waste, before also be treated. These packages are in themselves relatively expensive and their treatment involves a significant additional cost.
Un objectif supplementaire.de l'invention est de remédier à ce problème. L'appareil concerné comprend, de manière connue en soi, des moyens de réception des déchets, des moyens de broyage des déchets et/ou des moyens de désinfection de ces déchets. Selon l'invention, l'appareil comprend un corps et un récipient amovible ; le corps comprend une embase de réception du récipient amovible, des moyens d'entraînement accessibles depuis ladite embase, et/ou les moyens de désinfection et un orifice d'introduction d'un fluide de désinfection dans ledit récipient amovible, débouchant dans ladite embase ; le récipient amovible constitue lesdits moyens de réception des déchets ; il comprend les moyens de broyage, qui viennent en accouplement avec lesdits moyens d'entraînement lorsque le récipient est placé sur ladite embase, et/ou un orifice d'introduction du fluide de désinfection dans le récipient, qui vient en communication avec l'orifice correspondant débouchant dans ladite embase.An additional object of the invention is to overcome this problem. The apparatus concerned comprises, in a manner known per se, waste reception means, waste grinding means and / or means for disinfecting said waste. According to the invention, the apparatus comprises a body and a removable container; the body comprises a receiving base of the removable container, drive means accessible from said base, and / or the disinfection means and a disinfecting fluid introduction port in said removable container, opening into said base; the removable container is said means for receiving waste; it comprises the grinding means, which come into coupling with said drive means when the container is placed on said base, and / or an orifice for introducing the disinfection fluid into the container, which comes into communication with the orifice corresponding opening in said base.
Le récipient peut ainsi être séparé du corps de l'appareil et être transporté par un utilisateur pour la collecte des déchets ; une fois les déchets collectés, le récipient est mis en place sur le corps de l'appareil, ce qui permet l'accouplement des moyens de broyage avec les moyens d'entraînement et/ou la mise en communication des orifices respectifs du récipient et du corps de l'appareil. Les déchets peuvent alors être broyés par les moyens de broyage et/ou le fluide de désinfection peut être introduit à l'intérieur du récipient par lesdits orifices. Après désinfection, le récipient peut à nouveau être séparé du corps de l'appareil pour pouvoir être renversé afin d'évacuer les déchets, dans un réceptacle de collecte approprié, qui peut être une simple poubelle.The container can thus be separated from the body of the apparatus and transported by a user for the collection of waste; once the waste collected, the container is placed on the body of the device, which allows the coupling of the grinding means with the drive means and / or the communication of the respective orifices of the container and the body of the device. The waste can then be ground by the grinding means and / or the disinfecting fluid can be introduced into the container through said orifices. After disinfection, the container can again be separated from the body of the device to be reversed in order to evacuate the waste, in a suitable collection container, which can be a simple trash.
Cet appareil s'avère ainsi parfaitement adapté aux besoins des personnes ayant des quantités relativement réduites de déchets à traiter ; en particulier, le récipient amovible peut être transporté par l'utilisateur, pour une collecte des déchets en plusieurs emplacements, ou pour une collecte des déchets au fur et à mesure de la génération des déchets, en différents emplacements. De plus, cet appareil n'utilise pas d'emballages supplémentaires spécifiques.This device is thus perfectly adapted to the needs of people with relatively small quantities of waste to be treated; in particular, the removable container can be transported by the user, for a collection of waste in several locations, or for waste collection as and when the generation of waste, in different locations. In addition, this device does not use special additional packaging.
De préférence, les moyens de désinfection comprennent des moyens de génération du fluide de désinfection sous pression, ce qui favorise la désinfection des déchets broyés. Ce fluide est notamment de la vapeur d'eau.Preferably, the disinfection means comprise means for generating the disinfection fluid under pressure, which promotes the disinfection of the crushed waste. This fluid is in particular water vapor.
Le récipient pourrait comprendre un couvercle de fermeture, relié de manière définitive à lui ; toutefois, en cas de fluide de désinfection sous pression, ce couvercle devrait être de nature à résister à la pression du fluide et aurait donc pour conséquence d'alourdir inutilement le récipient ; par conséquent, de préférence, le récipient amovible ne comprend pas un tel couvercle et c'est le corps de l'appareil qui comprend un couvercle propre à venir obturer le récipient amovible au moment de l'introduction du fluide de désinfection sous pression dans le récipient ; le récipient reçoit, le temps de la collecte des déchets, un opercule d'obturation, pouvant être soulevé pour l'insertion des déchets ou comprenant une ouverture à cet effet, cet opercule étant en matériau broyable et étant destiné à être broyé avec les déchets.The container could include a closure lid, permanently connected to it; however, in the case of pressurized disinfection fluid, this lid should be such as to withstand the pressure of the fluid and would therefore unnecessarily increase the weight of the container; therefore, preferably, the removable container does not include such cover and it is the body of the device which comprises a clean cover to close off the removable container at the time of introduction of the pressure disinfection fluid into the container; the container receives, during the time of collection of waste, a sealing cap, which can be lifted for the insertion of the waste or comprising an opening for this purpose, this seal being made of a crushable material and being intended to be ground with the waste .
Selon une forme de réalisation de l'invention, ledit corps comprend une avancée surplombant ladite embase, laquelle comporte au moins un ensemble vis/écrou de déplacement dudit couvercle par rapport à l'ouverture correspondante du récipient et des moyens d'entraînement en rotation de la vis et/ou de l'écrou de chaque ensemble l'un par rapport à l'autre afin de réaliser le déplacement du couvercle. Notamment, le corps peut comprendre trois vis solidaires du couvercle et trois écrous solidaires de roues dentées actionnées par une chaîne elle-même entraînée par un moteur. De préférence, ladite embase et ledit récipient comprennent un orifice d'évacuation d'un éventuel exsudât généré par le broyage des déchets. Cet orifice peut être le même que celui servant à l'introduction du fluide de désinfection dans le récipient.According to one embodiment of the invention, said body comprises a projection overhanging said base, which comprises at least one screw / nut assembly for moving said lid relative to the corresponding opening of the container and means for driving in rotation of the screw and / or the nut of each set relative to each other to achieve the displacement of the cover. In particular, the body may comprise three screws integral with the cover and three nuts integral with gears actuated by a chain itself driven by a motor. Preferably, said base and said container comprise a discharge orifice of a possible exudate generated by the grinding of waste. This orifice may be the same as that used for introducing the disinfection fluid into the container.
De préférence, le récipient, ou ledit couvercle, comprend des moyens d'évacuation du fluide de désinfection sous pression après désinfection, pouvant inclure un filtre. De préférence,Preferably, the container, or said lid, comprises means for discharging the disinfection fluid under pressure after disinfection, which may include a filter. Preferably,
- lesdits moyens d'entraînement que comprend le corps sont constitués par deux arbres coaxiaux, engagés l'un dans l'autre ; - lesdits moyens de broyage que comprend le récipient amovible sont constitués par deux couteaux solidaires de deux arbres coaxiaux engagés l'un dans l'autre, chacun de ces arbres étant solidaire d'un couteau et étant destiné à venir en prise, lors de la mise en place du récipient sur ladite embase, avec l'un des deux arbres d'entraînement que comprend Ie corps. Les deux arbres d'entraînement que comprend le corps sont de préférence entraînés dans des sens de rotation inverses. Avantageusement, dans ce cas, l'un de ces arbres est relié à une première roue dentée et l'autre de ces arbres est relié à une deuxième roue dentée, et un arbre primaire d'entraînement vient en prise simultanément avec chacune de ces roues dentées, notamment par intermédiaire d'un pignon qu'il comporte. De préférence, l'appareil comprend un afficheur permettant notamment d'indiquer à l'utilisateur les opérations à accomplir, le déroulement de ces opérations ou des messages d'alerte. L'appareil peut également comprendre une imprimante délivrant un imprimé relatif aux différents paramètres du broyage et/ou de l'appareil.said drive means comprised by the body consist of two coaxial shafts engaged one inside the other; - Said grinding means that comprises the removable container are constituted by two knives integral with two coaxial shafts engaged one into the other, each of these shafts being integral with a knife and being intended to come into engagement, during the placing the container on said base, with one of the two drive shafts that includes the body. The two drive shafts included in the body are preferably driven in opposite directions of rotation. Advantageously, in this case, one of these shafts is connected to a first gear wheel and the other of these shafts is connected to a second gear wheel, and a primary drive shaft engages simultaneously with each of these wheels. toothed, in particular by means of a pinion which it comprises. Preferably, the apparatus comprises a display allowing in particular to indicate to the user the operations to be performed, the progress of these operations or alert messages. The apparatus may also comprise a printer delivering a printout relating to the various parameters of the grinding and / or the apparatus.
L'invention sera bien comprise, et d'autres caractéristiques et avantages de celle-ci apparaîtront, en référence au dessin schématique annexé, représentant, à titre d'exemple non limitatif, une forme de réalisation préférée de l'appareil qu'elle concerne. La figure 1 en est une vue en perspective, un récipient amovible qu'il comprend étant posé sur une embase d'un corps qu'il comprend également ; la figure 2 en est une vue similaire à la figure 1 , le récipient amovible étant séparé du corps et ce corps étant visible seulement en partie ; la figure 3 est une vue en perspective des organes que comprend le corps, et du récipient ; la figure 4 est une vue en perspective partiellement éclatée de différents organes que comprend le corps et le récipient, certaines parties de l'appareil ayant été masquées ; la figure 5 est une vue de ladite embase et de la partie de base du récipient, en coupe passant par l'axe d'arbres d'entraînement que comporte cette embase et ce récipient ; la figure 6 est une vue en perspective éclatée d'un sous-ensemble que comprend le corps, et la figure 7 est une vue fonctionnelle de circuits de fluide que comprend le corps.The invention will be better understood, and other features and advantages thereof will become apparent, with reference to the attached schematic drawing, showing, by way of non-limiting example, a preferred embodiment of the apparatus it relates. . Figure 1 is a perspective view, a removable container it comprises being placed on a base of a body which it also comprises; Figure 2 is a view similar to Figure 1, the removable container being separated from the body and this body being visible only partially; Figure 3 is a perspective view of the organs that includes the body, and the container; Fig. 4 is a partially exploded perspective view of various members that comprise the body and the container, some parts of the apparatus having been masked; Figure 5 is a view of said base and the base portion of the container, in section through the axis of drive shafts that includes the base and the container; Figure 6 is an exploded perspective view of a subassembly that includes the body, and Figure 7 is a functional view of fluid circuits that includes the body.
Les figures 1 et 2 représentent un appareil 1 de broyage et/ou de désinfection de déchets médicaux, comprenant un corps 2 et un récipient amovible 3.Figures 1 and 2 show an apparatus 1 for grinding and / or disinfecting medical waste, comprising a body 2 and a removable container 3.
Il apparaît que le corps 2 comprend une embase 4 de réception du récipient amovible 3, une avancée supérieure 5 surplombant l'embase 4, un afficheur 6 et une imprimante 7. L'embase 4 comprend deux arbres 8 dépassant d'elle et un orifice 9.It appears that the body 2 comprises a base 4 for receiving the removable container 3, an upper projection 5 overhanging the base 4, a display 6 and a printer 7. The base 4 comprises two shafts 8 protruding from it and an orifice 9.
Le récipient amovible 3, d'une contenance de six à sept litres, présente un corps cylindrique 10, ouvert sur le dessus, et un socle 11 logeant une vanne 12 (cf. figure 5). Cette vanne 12 est en communication avec un orifice 13 débouchant dans le fond du récipient 3 et comprend un orifice inférieur qui vient en communication avec l'orifice 9 lorsque le récipient 3 est mis en place sur l'embase 4. La vanne 12 est commandée par une clé de manœuvre 14. Le récipient 3 peut être fixé de manière amovible par rapport au corps 2 au moyen d'un système à baïonnettes (non représenté), ce système assurant la venue de la vanne 12 en regard de l'orifice 9.The removable container 3, with a capacity of six to seven liters, has a cylindrical body 10, open on top, and a base 11 housing a valve 12 (see Figure 5). This valve 12 is in communication with a orifice 13 opening into the bottom of the container 3 and comprises a lower orifice which comes into communication with the orifice 9 when the container 3 is placed on the base 4. The valve 12 is controlled by an operating key 14. The container 3 can be fixed detachably relative to the body 2 by means of a bayonet system (not shown), this system ensuring the arrival of the valve 12 facing the orifice 9.
En référence la figure 3, il apparaît que le corps 2 contient une plaque de support 15 sur laquelle sont fixées deux potences 16. La plaque de support 15 comporte, sur sa face supérieure, un moteur 17 d'entraînement des arbres 8, un générateur de vapeur 18 et l'imprimante 7, et, sur sa face inférieure, un bâti 19 comportant les organes de transmission entre le moteur 17 et ces arbres 8. La plaque 15 comporte également différents autres organes, en particulier une unité de commande des organes précités, des conduites de fluide et autres câbles de connexion électrique, non représentés par soucis de clarté du dessin. Les potences 16 comportent l'afficheur 4 et un ensemble d'actionnement d'un couvercle 25 de fermeture du récipient 3, cet ensemble étant logé dans l'avancée 6.Referring to Figure 3, it appears that the body 2 contains a support plate 15 on which are fixed two brackets 16. The support plate 15 comprises, on its upper face, a motor 17 for driving the shafts 8, a generator 18 and the printer 7, and on its underside, a frame 19 comprising the transmission members between the motor 17 and these shafts 8. The plate 15 also comprises various other organs, in particular an organ control unit. above, fluid lines and other electrical connection cables, not shown for the sake of clarity of the drawing. The brackets 16 comprise the display 4 and an assembly for actuating a lid 25 for closing the container 3, this assembly being housed in the projection 6.
Le moteur 17, le générateur 18 et l'imprimante 7 sont de type connu, et ne sont donc pas particulièrement décrits en détails.The motor 17, the generator 18 and the printer 7 are of known type, and are therefore not particularly described in detail.
L'arbre du moteur 17 entraîne une poulie 20 montée sur le bâti 19, au moyen d'une courroie traversant une lumière aménagée dans la plaque 15.The motor shaft 17 drives a pulley 20 mounted on the frame 19, by means of a belt passing through a slot in the plate 15.
Comme le montrent les figures 4 et 5, cette poulie 20 est montée sur un arbre entraînant un premier pignon conique 21 , lequel est en prise avec une roue dentée inférieure 22 et une roue dentée supérieure 23. Les deux arbres 8 sont coaxiaux et engagés l'un dans l'autre, l'arbre 8 intérieur étant solidaire de la roue inférieure 22 tandis que l'arbre 8 extérieur est solidaire de la roue dentée supérieure 23. Un pignon 24 similaire au pignon 21 est situé à l'opposé du pignon 21 , coaxialement à ce dernier. Comme cela se comprend, l'entraînement du moteur 17 réalise un entraînement des deux roues 22, 23, et donc des arbres 8, dans des sens inverses l'un de l'autre.As shown in FIGS. 4 and 5, this pulley 20 is mounted on a shaft driving a first conical gear 21, which is engaged with a lower gear 22 and an upper gear 23. The two shafts 8 are coaxial and engaged. one in the other, the inner shaft 8 being integral with the lower wheel 22 while the outer shaft 8 is integral with the upper gear 23. A pinion 24 similar to the pinion 21 is located opposite the pinion 21, coaxially to the latter. As it is understood, the drive of the motor 17 carries a drive of the two wheels 22, 23, and thus the shafts 8, in opposite directions from one another.
Ainsi que cela apparaît en référence aux figures 3, 4 et 6, l'ensemble d'actionnement du couvercle 25 comprend une plaque de support montée sur les potences 16, comportant un moteur 26 et trois ensembles 27 de manoeuvre du couvercle 25. Chaque ensemble 27 comprend un écrou 30 monté rotatif sur ladite plaque au moyen d'un roulement 31 , et une tige filetée 32 rendue solidaire du couvercle 25 au moyen d'une goupille 33. Le moteur 26 entraîne une chaîne 35 (fictivement représentée comme ayant une section constante, par soucis de simplification du dessin) autour de trois portions dentées (fictivement représentées comme cylindriques), solidaires des écrous 30. Ladite plaque de support comporte en outre un galet de renvoi 36 assurant un arc d'enroulement suffisant de la chaîne 35 autour de la portion dentée de l'écrou 30 situé en arrière-plan. En référence de nouveau aux figures 4 et 5, il apparaît que le récipient 3 comporte deux arbres coaxiaux 40 engagés l'un dans l'autre, pouvant être accouplés aux arbres 8 respectifs lors de la mise en place du récipient 3 sur l'embase 2. Ces accouplements peuvent être réalisés par simple engagement des extrémités inférieures des arbres 40 sur les extrémités supérieures des arbres 8, l'accouplement étant réalisé par venue en prise des zones d'extrémité de forme complémentaires.As it appears with reference to FIGS. 3, 4 and 6, the actuating assembly of the cover 25 comprises a support plate mounted on the brackets 16, comprising a motor 26 and three sets 27 of Maneuvering the lid 25. Each set 27 comprises a nut 30 rotatably mounted on said plate by means of a bearing 31, and a threaded rod 32 secured to the lid 25 by means of a pin 33. The motor 26 drives a chain 35 (Fictitiously represented as having a constant section, for the sake of simplification of the drawing) around three toothed portions (fictitiously represented as cylindrical), integral with the nuts 30. Said support plate further comprises a return roller 36 ensuring an arc of sufficient winding of the chain 35 around the toothed portion of the nut 30 in the background. Referring again to Figures 4 and 5, it appears that the container 3 comprises two coaxial shafts 40 engaged one into the other, which can be coupled to the respective shafts 8 when placing the container 3 on the base 2. These couplings can be made by simply engaging the lower ends of the shafts 40 on the upper ends of the shafts 8, the coupling being made by engaging end zones of complementary shape.
Chaque extrémité supérieure des arbres 40 débouche à l'intérieur du fond du récipient 3 et comporte un couteau 41 , la liaison des couteaux 41 avec chacun des arbres 40 étant réalisée au moyen de clavettes maintenues par des moyeux 42.Each upper end of the shafts 40 opens into the bottom of the container 3 and comprises a knife 41, the linkage of the knives 41 with each of the shafts 40 being formed by means of keys held by hubs 42.
La figure 7 montre la conduite 45 d'arrivée d'eau au générateur de vapeur 18 par l'intermédiaire d'une vanne 46, la conduite 47 d'alimentation de la vapeur à l'intérieur du récipient 3, par intermédiaire des orifices 9 et 13, la conduite d'évacuation 48 des exsudats, équipée d'une vanne 49, et la conduite 50, équipée d'une vanne 51 et d'un filtre 52, reliée à une source de vide 53 permettant qu'une mise sous vide du récipient 3 et une évacuation de la vapeur hors de ce récipient.FIG. 7 shows the pipe 45 for supplying water to the steam generator 18 via a valve 46, the pipe 47 for feeding the vapor inside the container 3, via the orifices 9 and 13, the drain line 48 of the exudates, equipped with a valve 49, and the pipe 50, equipped with a valve 51 and a filter 52, connected to a vacuum source 53 allowing a setting empty of the container 3 and evacuation of the vapor out of this container.
En pratique, le récipient 3 peut être séparé du corps 2 et être transporté par un utilisateur pour la collecte des déchets ; au cours de ce transport, la vanne 12 est fermée et l'ouverture supérieure du récipient 3 reçoit un opercule de fermeture (non représenté), comprenant une fente étroite pour l'insertion des déchets. Cet opercule est en une matière susceptible d'être broyée par les couteaux 41 , notamment une matière synthétique mince, et comprend un rebord pour son clipage amovible sur ladite ouverture du récipient 3. Une fois les déchets collectés, l'opercule est retiré et est placé dans le récipient 3, puis ce dernier est mis en place sur l'embase 4, ce qui permet l'accouplement des arbres 40 et 8 et la mise en communication des orifices respectifs 13 et 9 du récipient 3 et de l'embase 4. Le couvercle 25 est alors abaissé et les déchets ainsi que l'opercule sont alors broyés par les couteaux 41 , entraînés par le moteur 17. Une fois le broyage terminé, il est procédé à une mise au vide du récipient 3 par le biais de la source de vide 53 puis la vapeur est introduite à l'intérieur du récipient 3 par lesdits orifices 9, 13. La durée du traitement peut notamment être de 18 minutes, à 135° C. À la fin de ce traitement, les exsudats et la vapeur sont évacués, et le récipient 3 peut à nouveau être séparé du corps 2 pour pouvoir être renversé afin d'évacuer les déchets dans un réceptacle approprié de collecte, qui peut être une simple poubelle. Le récipient 3 est, après rinçage, placé en position renversée sur l'embase 4, pour une décontamination finale au moyen de la vapeur et éventuellement d'un bactéricide.In practice, the container 3 can be separated from the body 2 and be transported by a user for the collection of waste; during this transport, the valve 12 is closed and the upper opening of the container 3 receives a closing cap (not shown), comprising a narrow slot for the insertion of the waste. This lid is made of a material that can be ground by the knives 41, in particular a thin synthetic material, and comprises a flange for its removable clipping on said opening of the container 3. Once the waste collected, the lid is removed and is placed in the container 3, and the latter is placed on the base 4, which allows the coupling of the shafts 40 and 8 and the communication port openings 13 and 9 of the container 3 and the base 4. The lid 25 is then lowered and the waste and the lid are then ground by the knives 41, driven by the motor 17. Once the grinding is completed, it is the container 3 is evacuated via the vacuum source 53 and the vapor is introduced inside the container 3 via said orifices 9, 13. The duration of the treatment can in particular be 18 minutes, at 135.degree. C. At the end of this treatment, the exudates and the steam are evacuated, and the container 3 can again be separated from the body 2 so that it can be overturned in order to evacuate the waste in a suitable collection container, which can be a simple trash. The container 3 is, after rinsing, placed in the inverted position on the base 4, for a final decontamination by means of steam and optionally a bactericide.
Comme cela apparaît de ce qui précède, l'invention fournit un appareil présentant les avantages déterminants :As can be seen from the foregoing, the invention provides an apparatus with the decisive advantages:
- d'être adapté aux besoins de personnes ayant des quantités relativement réduites de déchets à traiter, et ce sans amoindrissement des conditions de traitement de ce type de déchets, et- to be adapted to the needs of people with relatively small quantities of waste to be treated, and without reducing the conditions for treating this type of waste, and
- de supprimer la nécessité d'emballage des déchets, réduisant de ce fait la quantité de déchets à traiter et donc le coût du traitement de ces déchets.- to eliminate the need for packaging waste, thereby reducing the amount of waste to be treated and therefore the cost of treating this waste.
Il va de soi que l'invention n'est pas limitée à la forme de réalisation décrite ci-dessus à titre d'exemple mais qu'elle s'étend à toutes les formes de réalisations couvertes par les revendications ci-annexées. It goes without saying that the invention is not limited to the embodiment described above by way of example but that it extends to all embodiments covered by the appended claims.

Claims

REVENDICATIONS
1 - Appareil de broyage et de désinfection de déchets, notamment médicaux, comprenant des moyens (3) de réception des déchets, des moyens (17, 41) de broyage des déchets et des moyens (18) de désinfection de ces déchets, caractérisé en ce qu'il comprend un corps (2) et un récipient amovible (3) ; le corps (2) comprend une embase (4) de réception du récipient amovible (3), des moyens d'entraînement (8) accessibles depuis ladite embase (4), et un orifice (9) d'introduction d'un fluide de désinfection dans ledit récipient amovible (3), débouchant dans ladite embase (4) ; le récipient amovible (3) constitue lesdits moyens de réception des déchets ; il comprend les moyens de broyage (41 , 40), qui viennent en accouplement avec lesdits moyens d'entraînement (8) lorsque le récipient (3) est placé sur ladite embase (4), et un orifice (13) d'introduction du fluide de désinfection dans le récipient (3), qui vient en communication avec l'orifice (9) correspondant débouchant dans ladite embase (4).1 - Apparatus for grinding and disinfecting waste, especially medical waste, comprising means (3) for receiving waste, means (17, 41) for grinding waste and means (18) for disinfecting such waste, characterized in it comprises a body (2) and a removable container (3); the body (2) comprises a base (4) for receiving the removable container (3), drive means (8) accessible from said base (4), and an orifice (9) for introducing a fluid of disinfection in said removable container (3), opening into said base (4); the removable container (3) constitutes said means for receiving the waste; it comprises the grinding means (41, 40), which come into engagement with said drive means (8) when the container (3) is placed on said base (4), and an orifice (13) for introducing the disinfection fluid in the container (3), which comes into communication with the corresponding orifice (9) opening into said base (4).
2 - Appareil (1) selon la revendication 1 , caractérisé en ce que les moyens de désinfection comprennent des moyens (18) de génération du fluide de désinfection sous pression.2 - Apparatus (1) according to claim 1, characterized in that the disinfection means comprise means (18) for generating the disinfection fluid under pressure.
3 - Appareil (1) selon la revendication 1 ou la revendication 2, caractérisé en ce que le corps (2) de l'appareil (1) comprend un couvercle (25) propre à venir obturer le récipient amovible (3) au moment de l'introduction du fluide de désinfection dans le récipient.3 - Apparatus (1) according to claim 1 or claim 2, characterized in that the body (2) of the apparatus (1) comprises a cover (25) adapted to close the removable container (3) at the time of introducing the disinfecting fluid into the container.
4 - Appareil (1) selon la revendication 3, caractérisé en ce que ledit corps (2) comprend une avancée (6) surplombant ladite embase (4), laquelle comporte au moins un ensemble vis/écrou (27) de déplacement dudit couvercle (25) par rapport à l'ouverture correspondante du récipient (3) et des moyens (26, 35) d'entraînement en rotation de la vis et/ou de l'écrou de chaque ensemble (27) l'un par rapport à l'autre afin de réaliser le déplacement du couvercle (25). 5 - Appareil (1) selon l'une des revendications 1 à 4, caractérisé en ce que ladite embase (4) et ledit récipient (3) comprennent un orifice (13) d'évacuation d'un éventuel exsudât généré par le broyage des déchets.4 - Apparatus (1) according to claim 3, characterized in that said body (2) comprises a projection (6) overhanging said base (4), which comprises at least one screw / nut assembly (27) for moving said cover ( 25) relative to the corresponding opening of the container (3) and means (26, 35) for rotating the screw and / or the nut of each assembly (27) relative to each other. other in order to move the cover (25). 5 - Apparatus (1) according to one of claims 1 to 4, characterized in that said base (4) and said container (3) comprise an orifice (13) for evacuation of any exudate generated by the grinding of waste.
6 - Appareil (1) selon la revendication 5, caractérisé en ce que ledit orifice (9) d'évacuation est le même que celui servant à l'introduction du fluide de désinfection dans le récipient. 7 - Appareil (1) selon l'une des revendications 1 à 6, caractérisé en ce que le récipient (3), ou ledit couvercle (25), comprend des moyens (50 à 53) d'évacuation du fluide de désinfection après désinfection, pouvant inclure un filtre (52). 8 - Appareil (1) selon l'une des revendications 1 à 7, caractérisé en ce que :6 - Apparatus (1) according to claim 5, characterized in that said orifice (9) discharge is the same as that for the introduction of the disinfecting fluid in the container. 7 - Apparatus (1) according to one of claims 1 to 6, characterized in that the container (3), or said cover (25), comprises means (50 to 53) for discharging the disinfection fluid after disinfection , which may include a filter (52). 8 - Apparatus (1) according to one of claims 1 to 7, characterized in that:
- lesdits moyens d'entraînement que comprend le corps (2) sont constitués par deux arbres coaxiaux (8), engagés l'un dans l'autre ;- said drive means that comprises the body (2) are constituted by two coaxial shafts (8) engaged one into the other;
- lesdits moyens de broyage que comprend le récipient amovible (3) sont constitués par deux couteaux (41) solidaires de deux arbres coaxiaux (40) engagés l'un dans l'autre, chacun de ces arbres (40) étant solidaire d'un couteau (41) et étant destiné à venir en prise, lors de la mise en place du récipient (3) sur ladite embase (4), avec l'un des deux arbres d'entraînement (8) que comprend le corps (2) - l'appareil comprend des moyens d'entraînement des deux couteaux- Said grinding means that comprises the removable container (3) are constituted by two knives (41) integral with two coaxial shafts (40) engaged one into the other, each of these shafts (40) being integral with a knife (41) and being adapted to engage, when placing the container (3) on said base (4), with one of the two drive shafts (8) that comprises the body (2) the apparatus comprises means for driving the two knives
(41) dans des sens contra-rotatifs.(41) in contra-rotating directions.
9 - Appareil (1) selon la revendication 8, caractérisé en ce que l'un desdits arbres (8) est relié à une première roue dentée (22) et l'autre de ces arbres (8) est relié à une deuxième roue dentée (23), et en ce qu'un arbre primaire d'entraînement vient en prise simultanément avec chacune de ces roues dentées (22, 23), notamment par intermédiaire d'un pignon (21) qu'il comporte.9 - Apparatus (1) according to claim 8, characterized in that one of said shafts (8) is connected to a first gear wheel (22) and the other of these shafts (8) is connected to a second gear wheel (23), and in that a primary drive shaft engages simultaneously with each of these toothed wheels (22, 23), in particular by means of a pinion (21) that it comprises.
10 - Appareil (1) selon l'une des revendications 1 à 9, caractérisé en ce qu'il comprend un afficheur (6) permettant notamment d'indiquer à l'utilisateur les opérations à accomplir, le déroulement de ces opérations ou des messages d'alerte, et/ou une imprimante (7) délivrant un imprimé relatif aux différents paramètres du broyage et/ou de l'appareil (1). 10 - Apparatus (1) according to one of claims 1 to 9, characterized in that it comprises a display (6) in particular to indicate to the user the operations to be performed, the progress of these operations or messages warning device and / or a printer (7) delivering a printout relating to the different grinding parameters and / or the device (1).
EP07788914A 2006-06-27 2007-06-21 Apparatus for grinding and disinfecting waste, especially medical waste Withdrawn EP2063995A1 (en)

Applications Claiming Priority (2)

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FR0605746A FR2902671B1 (en) 2006-06-27 2006-06-27 APPARATUS FOR GRINDING AND / OR DISINFECTING WASTE, IN PARTICULAR MEDICAL
PCT/FR2007/001033 WO2008000937A1 (en) 2006-06-27 2007-06-21 Apparatus for grinding and disinfecting waste, especially medical waste

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FR2902671A1 (en) 2007-12-28
WO2008000937A1 (en) 2008-01-03

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