FR2673389A1 - Method and device for the decontamination of metal objects - Google Patents
Method and device for the decontamination of metal objects Download PDFInfo
- Publication number
- FR2673389A1 FR2673389A1 FR9102462A FR9102462A FR2673389A1 FR 2673389 A1 FR2673389 A1 FR 2673389A1 FR 9102462 A FR9102462 A FR 9102462A FR 9102462 A FR9102462 A FR 9102462A FR 2673389 A1 FR2673389 A1 FR 2673389A1
- Authority
- FR
- France
- Prior art keywords
- objects
- drawer
- laser
- decontamination
- cavity
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000005202 decontamination Methods 0.000 title abstract description 7
- 230000003588 decontaminative effect Effects 0.000 title abstract description 5
- 239000002184 metal Substances 0.000 title abstract 2
- 230000006378 damage Effects 0.000 abstract description 6
- 238000011109 contamination Methods 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 241000700605 Viruses Species 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000003612 virological effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000030507 AIDS Diseases 0.000 description 1
- 208000036142 Viral infection Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 208000006454 hepatitis Diseases 0.000 description 1
- 231100000283 hepatitis Toxicity 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009385 viral infection Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/3278—Apparatus for destroying used needles or syringes
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Environmental & Geological Engineering (AREA)
- Epidemiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
PROCEDE ET DISPOSITIF DE DECONTAMINATION
D'OBJETS METALLIQUES.DECONTAMINATION PROCESS AND DEVICE
METALLIC OBJECTS.
La présente invention a pour objet un procédé de décontamination et de destruction d'objets métalliques susceptibles d'être contaminés par des souches microbiennes ou virales, ainsi qu'un dispositif de mise en oeuvre dudit procédé.The subject of the present invention is a process for decontamination and destruction of metallic objects liable to be contaminated by microbial or viral strains, as well as a device for implementing said process.
On sait que dans les établissements hospitaliers humains ou vétérinaires il est indispensable de décontaminer les objets qui ont pu être en contact avec du sang, du pus, des déjections ou tout autre contaminant, ces objets risquant de provoquer une infection du personnel appelé à les manipuler directement ou indirectement.We know that in human or veterinary hospitals it is essential to decontaminate objects that may have been in contact with blood, pus, excrement or any other contaminant, these objects being likely to cause an infection of the personnel called to handle them. directly or indirectly.
Des cas de contamination, mortels en cas de SIDA ou d'hépatite décrit, ont été décrits soit chez le personnel hospitalier appelé à manipuler ces objets, soit parmi le personnel qui est appelé à manipuler les ordures collectives qui peuvent contenir des aiguilles, des seringues, lames du bistouri, sondes diverses ayant été en contact avec des malades porteurs d'infections microbiennes ou virales. Les objets pouvant entraîner une telle atteinte sont des objets acérés risquant d'entraîner par mégarde une blessure du personnel, cette blessure constituant une voie d'entrée pour des microbes ou virus. Ces objets sont au moins en partie métallique et de petites dimensions telles que des aiguilles ou les lames de bistouri.Cases of contamination, fatal in the event of AIDS or of described hepatitis, have been described either among the hospital staff called upon to handle these objects, or among the staff who is called upon to handle collective garbage which may contain needles, syringes , scalpel blades, various probes having been in contact with patients carrying microbial or viral infections. The objects which can cause such an attack are sharp objects which risk inadvertently causing injury to personnel, this injury constituting an entry route for microbes or viruses. These objects are at least partly metallic and of small dimensions such as needles or scalpel blades.
Précédement, de tels objets étaient, après usage, stérilisés dans une étuve à 18000 pendant un temps donné. Une telle élévation de température permettait ainsi d'éliminer les microbes et les virus. Toutefois, on utilise actuellement des aiguilles, bistouris, sondes etc... à usage unique afin d'éviter une contamination entre les malades et on ne les restérilise plus. Mais, il existe un problème de destruction de ces objets qui ne doivent en aucun cas être disséminés dans la nature. A cet effet, il est connu actuellement de placer les objets utilisés dans des boites de matières plastiques qui pour des raisons de sécurité énoncées plus haut ne doivent pas être jetées avec les ordures collectives. De tels objets représentent un volume considérable de déchets pour un établissement de soins en comptant plusieurs piqûres par personne et par jour.Les boites en matière plastique doivent être amenées soit à l'incinérateur central de l'établissement, soit à un incinérateur collectif qui peut être éloigné du centre de soins d'où un coût supplémentaire. La présente invention a pour objet de pallier cet inconvénient et de mettre à la disposition des unités de soins, un dispositif de décontamination des objets permettant de détruire les contaminants, le résidu pouvant être évacué avec des déchets ordinaires sans aucun danger.Previously, such objects were, after use, sterilized in an oven at 18000 for a given time. Such a rise in temperature thus made it possible to eliminate microbes and viruses. However, single-use needles, scalpels, probes, etc. are currently used in order to avoid contamination between patients and they are no longer re-sterilized. But, there is a problem of destruction of these objects which must in no case be disseminated in nature. To this end, it is currently known to place the objects used in plastic boxes which, for the safety reasons stated above, must not be thrown away with collective garbage. Such objects represent a considerable volume of waste for a healthcare establishment, counting several bites per person per day. Plastic boxes must be brought either to the central incinerator of the establishment, or to a collective incinerator which can be far from the health center, which results in an additional cost. The object of the present invention is to overcome this drawback and to make available to the care units, a device for decontaminating objects making it possible to destroy the contaminants, the residue being able to be removed with ordinary waste without any danger.
Selon la présente invention, le procédé de décontamination et de destruction d'objets métalliques pouvant être contaminés et caractérisés en ce qu'il consiste à soumettre l'objet à un bombardement laser.According to the present invention, the method of decontamination and destruction of metallic objects which can be contaminated and characterized in that it consists in subjecting the object to laser bombardment.
Ainsi, l'objet tel qu'une aiguille ou une lame du bistouri est soumis à un échauffement très rapide qui provoque pour le moins sa fusion partielle et détruit bien entendu toutes les souches microbiennes ou virales.Thus, the object such as a needle or a scalpel blade is subjected to very rapid heating which at least causes its partial fusion and of course destroys all the microbial or viral strains.
La présente invention a également pour objet un dispositif de mise en oeuvre du procédé comprenant une enceinte thermiquement et électriquement isolée, renfermant une source laser disposée au-dessus d'une cavité pouvant recevoir un tiroir contenant les objets à détruire. The present invention also relates to a device for implementing the method comprising a thermally and electrically isolated enclosure, containing a laser source disposed above a cavity capable of receiving a drawer containing the objects to be destroyed.
Il est ainsi possible après usage de récupérer directement les objets dangereux dans le tiroir qui peut être disposé sur un chariot et ensuite d'introduire le tiroir dans l'enceinte pour commencer le bombardement laser.It is thus possible after use to directly collect dangerous objects in the drawer which can be placed on a trolley and then to introduce the drawer into the enclosure to start the laser bombardment.
Après usage, l'objet éventuellement contaminé peut être placé directement à l'intérieur du tiroir et amené au dispositif de destruction-décontamination.After use, the possibly contaminated object can be placed directly inside the drawer and brought to the destruction-decontamination device.
D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre d'un mode particulier de réalisation donné uniquement à titre d'exemples non limitatif en regard des figures qui représentent - La figure 1, une vue schématique d'un appareil de
décontamination - La figure 2, une vue en perspective du tiroir.Other characteristics and advantages of the invention will appear during the following description of a particular embodiment given solely by way of nonlimiting examples with reference to the figures which represent - FIG. 1, a schematic view of a device
decontamination - Figure 2, a perspective view of the drawer.
Sur la figure 1, on voit qu'à ltintérieur d'une enceinte 1 qui est de préférence thermiquement et électriquement isolée est montée une source laser 2. La source laser 2 est commandée à partir d'un tableau 9 agissant sur l'alimentation 5 du laser.In Figure 1, we see that inside a chamber 1 which is preferably thermally and electrically isolated is mounted a laser source 2. The laser source 2 is controlled from a table 9 acting on the power supply 5 of the laser.
Bien entendu, le bloc d'alimentation 5 est relié au secteur et comporte toutes les sécurités habituelles.Of course, the power supply 5 is connected to the mains and includes all the usual security devices.
L'enceinte 1 présente sur sa face avant et à la partie inférieure de celle-ci une ouverture 3 permettant l'introduction d'un tiroir 4 permettant d'amener les objets au-dessous du faisceau laser F.The enclosure 1 has on its front face and at the lower part thereof an opening 3 allowing the introduction of a drawer 4 making it possible to bring the objects below the laser beam F.
Le tiroir 4 est représenté en perspective sur la figure 2. Il présente d'une manière générale une forme de creuset rectangulaire. A cet effet, il comporte quatre parois inclinées 7 formant entonnoir de sorte que un objet introduit sur l'un des côtés glisse automatiquement dans le fond 10 du tiroir. Les parois inclinées 7 se prolongent vers le fond 10 du tiroir par des surfaces 8 très inclinées. Selon une caractéristique de l'invention, les parois 7 et 8 sont des parois réfléchissantes à la longueur d'onde d'émission de la source laser 2. Ainsi, le rayonnement laser n'est pas absorbé par ces parois et par suite ne provoque pas d'échauffement notable de celles-ci. Toutefois, les miroirs 7 et 8 ne constituent qu'un revêtement du corps du tiroir qui est avantageusement en matière réfractaire afin d'éviter toute dissipation de la chaleur.The drawer 4 is shown in perspective in Figure 2. It generally has a rectangular crucible shape. To this end, it has four inclined walls 7 forming a funnel so that an object inserted on one of the sides slides automatically into the bottom 10 of the drawer. The inclined walls 7 extend towards the bottom 10 of the drawer by very inclined surfaces 8. According to a characteristic of the invention, the walls 7 and 8 are walls reflecting at the emission wavelength of the laser source 2. Thus, the laser radiation is not absorbed by these walls and consequently does not cause no noticeable heating of these. However, the mirrors 7 and 8 constitute only a coating of the body of the drawer which is advantageously made of refractory material in order to avoid any dissipation of heat.
Au cours d'expériences qui ont été réalisées, des résultats satisfaisant ont été obtenus avec un laser YAG dont l'élément actif est un grenat double d'aluminium et d'yttrium dont la puissance d'émission était de 30 watts et la longueur d'onde de 1 065 mm. On a pu observer que les parties acérées (pointes de l'aiguille, lames du bistouri) se vaporisaient pour former des microbilles. En tout état de cause, les instruments tranchants introduit dans l'appareil sont émoussés et impropres à tout usage ultérieur. Le temps de fonctionnement du laser a été de deux à trois secondes.In the course of experiments which have been carried out, satisfactory results have been obtained with a YAG laser, the active element of which is a double garnet of aluminum and yttrium, the emission power of which was 30 watts and the length d wave of 1,065 mm. It was observed that the sharp parts (tips of the needle, scalpel blades) vaporized to form microbeads. In any case, the sharp instruments introduced into the device are blunt and unsuitable for any subsequent use. The laser operating time was two to three seconds.
Bien entendu, le fonctionnement du système proprement dit nécessite quelques précautions et, outre les sécurités classiques on adjoint de préférence à l'intérieur de l'enceinte 1 un contact de fin de course 6 qui ne peut être fermé que lorsque le tiroir 4 est poussé à fond à l'intérieur de la cavité 3. Et ainsi, le dispositif ne peut être mis en fonctionnement que lorsque le tiroir est en place. Le laser n'émet aucune fumée et aucune radiation nocive pour l'environnement. Of course, the operation of the system proper requires a few precautions and, in addition to the conventional safety devices, there is preferably added inside the enclosure 1 a limit switch 6 which can only be closed when the drawer 4 is pushed. fully inside the cavity 3. And thus, the device can only be put into operation when the drawer is in place. The laser emits no smoke and no radiation harmful to the environment.
Il est possible d'avoir des tiroirs sur les chariots de soins auprès des malades et de mettre directement les aiguilles dedans puis arriver dans le local des infirmières de faire passer les aiguilles dans le dispositif avant de jeter lesdites aiguilles avec les ordures normales. It is possible to have drawers on the carts for caring for the sick and to put the needles directly in then arrive in the nurses' room to pass the needles in the device before throwing said needles with normal garbage.
La présente invention permet ainsi de limiter au maximum les manipulations des objets souillés et par suite les risques de contamination. Les manipulations étant réduites au minimum, il existe un gain de temps et de personnel qui compense rapidement l'investissement d'achat du dispositif.The present invention thus makes it possible to limit as much as possible the handling of soiled objects and consequently the risks of contamination. The manipulations being reduced to a minimum, there is a saving of time and personnel which quickly compensates for the investment of purchase of the device.
Il va de soi que de nombreuses variantes peuvent être introduites, notamment par substitution de moyens techniquement équivalents sans pour autant sortir du cadre de 1 t invention. It goes without saying that many variants can be introduced, in particular by substitution of technically equivalent means without departing from the scope of the invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9102462A FR2673389B1 (en) | 1991-03-01 | 1991-03-01 | METHOD AND DEVICE FOR DECONTAMINATION OF METAL OBJECTS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9102462A FR2673389B1 (en) | 1991-03-01 | 1991-03-01 | METHOD AND DEVICE FOR DECONTAMINATION OF METAL OBJECTS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2673389A1 true FR2673389A1 (en) | 1992-09-04 |
| FR2673389B1 FR2673389B1 (en) | 1993-06-18 |
Family
ID=9410239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9102462A Expired - Fee Related FR2673389B1 (en) | 1991-03-01 | 1991-03-01 | METHOD AND DEVICE FOR DECONTAMINATION OF METAL OBJECTS. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2673389B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994022512A1 (en) * | 1993-03-30 | 1994-10-13 | Maria Teresa Piva | Safety container for scoria, particularly in devices for destroying medical instruments such as hypodermic needles, scalpels and the like |
| BE1013093A5 (en) * | 1999-08-24 | 2001-09-04 | Wallonia Space Logistics En Ab | Decontamination method and device |
| DE102005005707B3 (en) * | 2005-01-31 | 2006-02-02 | Technische Universität Dresden | Radiation of object surface with melting in radiation active region useful for decontamination of an object with electrically conductive surface and production of high purity compositions, where melt is electrically conductive |
| DE102005005709A1 (en) * | 2005-01-31 | 2006-08-17 | Technische Universität Dresden | Method and device for processing material surfaces |
| CN102000689A (en) * | 2010-10-13 | 2011-04-06 | 山东淄博山川医用器材有限公司 | Device for preventing reuse of disposable syringe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0136392A1 (en) * | 1983-08-08 | 1985-04-10 | Ch'ing-Lung Hsieh | Mini electrical syringe needle destroyer |
| WO1986004544A1 (en) * | 1985-02-11 | 1986-08-14 | Sed S.A. | Method for decontaminating refuse stored in a collection and compaction container |
| FR2618336A1 (en) * | 1987-07-24 | 1989-01-27 | Schwarzmann Paul | Steriliser for metal objects, in particular for single medical use |
| EP0332584A2 (en) * | 1988-03-08 | 1989-09-13 | Jeabor S.A. | Apparatus for instantaneously destroying used injection syringe needles |
-
1991
- 1991-03-01 FR FR9102462A patent/FR2673389B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0136392A1 (en) * | 1983-08-08 | 1985-04-10 | Ch'ing-Lung Hsieh | Mini electrical syringe needle destroyer |
| WO1986004544A1 (en) * | 1985-02-11 | 1986-08-14 | Sed S.A. | Method for decontaminating refuse stored in a collection and compaction container |
| FR2618336A1 (en) * | 1987-07-24 | 1989-01-27 | Schwarzmann Paul | Steriliser for metal objects, in particular for single medical use |
| EP0332584A2 (en) * | 1988-03-08 | 1989-09-13 | Jeabor S.A. | Apparatus for instantaneously destroying used injection syringe needles |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994022512A1 (en) * | 1993-03-30 | 1994-10-13 | Maria Teresa Piva | Safety container for scoria, particularly in devices for destroying medical instruments such as hypodermic needles, scalpels and the like |
| BE1013093A5 (en) * | 1999-08-24 | 2001-09-04 | Wallonia Space Logistics En Ab | Decontamination method and device |
| DE102005005707B3 (en) * | 2005-01-31 | 2006-02-02 | Technische Universität Dresden | Radiation of object surface with melting in radiation active region useful for decontamination of an object with electrically conductive surface and production of high purity compositions, where melt is electrically conductive |
| DE102005005709A1 (en) * | 2005-01-31 | 2006-08-17 | Technische Universität Dresden | Method and device for processing material surfaces |
| DE102005005709B4 (en) * | 2005-01-31 | 2009-06-10 | Technische Universität Dresden | Device for processing material surfaces |
| CN102000689A (en) * | 2010-10-13 | 2011-04-06 | 山东淄博山川医用器材有限公司 | Device for preventing reuse of disposable syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2673389B1 (en) | 1993-06-18 |
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| ST | Notification of lapse |