EP2465009A1 - Dispositif permettant de retirer des films de mémorisation d'une enveloppe protectrice - Google Patents

Dispositif permettant de retirer des films de mémorisation d'une enveloppe protectrice

Info

Publication number
EP2465009A1
EP2465009A1 EP10740157A EP10740157A EP2465009A1 EP 2465009 A1 EP2465009 A1 EP 2465009A1 EP 10740157 A EP10740157 A EP 10740157A EP 10740157 A EP10740157 A EP 10740157A EP 2465009 A1 EP2465009 A1 EP 2465009A1
Authority
EP
European Patent Office
Prior art keywords
protective cover
storage
storage film
holding means
protective
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Withdrawn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
EP10740157A
Other languages
German (de)
English (en)
Inventor
Michael Thoms
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.)
Duerr Dental SE
Original Assignee
Duerr Dental SE
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 Duerr Dental SE filed Critical Duerr Dental SE
Publication of EP2465009A1 publication Critical patent/EP2465009A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C3/00—Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives
    • G03C3/003—Individual packages for X-ray film, e.g. for dental applications
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
    • G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
    • G03B42/04—Holders for X-ray films
    • G03B42/045—Holders for X-ray films apparatus for loading or unloading the holders

Definitions

  • the invention relates to a device for removing storage foils from a protective cover.
  • Image plates serve to record X-ray images of irradiated objects and patients. They contain storage centers, which can be converted by the X-rays into metastable electronic excitation states from which they relax upon exposure to readout light with emission of fluorescence.
  • the imaging plates are made by a reader (scanner), in which the exposed imaging plates are inserted.
  • Hygienic covers that surround the protective cover and ensure that the protective cover does not come into contact with bodily fluids or other contaminants.
  • the envelopes surrounding the imaging plates had to be manually removed, which costs time and more
  • the present invention is intended to provide a device for removing storage foils from a protective cover, which can remove protective covers from storage foils without manual labor.
  • the protective cover is held on a region adjacent to an existing or to be created removal opening.
  • the protective cover is pushed out, it can be taken over by a collection device of the read-out device (the scanner). This then pulls the memory film completely out of the protective cover, so that the latter comes free of the storage film and can be disposed of.
  • Claim 5 indicates various alternatives with which the protective cover can be held. It is
  • the cooperating form-fitting elements and form-fitting means can serve to position the protective cover.
  • the storage disks are already bent to a curved geometry, as used in some read-out devices.
  • the storage film can then be taken over from the removal device into the read-out device substantially while maintaining its geometry.
  • the development of the invention according to claim 9 makes it possible to realize the pushing out of the storage film from the protective cover with the application of low force.
  • the read-out device and / or the ejection of the empty protective cover can be started automatically when the front edge of the storage film has reached the feeder of the reader.
  • the movement of the storage film is continued by the removal device at least until the front edge of the storage film has been taken over by the collection of the read-out device.
  • a (the front) side of the protective cover is mechanically opened to provide a removal opening for the storage sheet.
  • Figure 1 a partially broken view of a
  • FIG. 2 shows a section through the arrangement according to FIG
  • Figure 3 a schematic representation of a device
  • Figure 4 a vertical section through a station
  • FIG. 9 a plan view of a modified protective cover
  • FIG. 10 a plan view of the front side of a delten reader with teilzylindrischer readout surface
  • FIG. 11 a plan view of the read-out device according to FIG.
  • Figure 12 a vertical section through a further
  • FIG. 13 shows a further vertical section through the device shown in FIG. 12 in a plane perpendicular to the plane of the drawing of FIG. 12;
  • FIG. 14 a plan view of a further modified one
  • FIGS. 1 a light-tight protective cover for a storage film 14 is shown at 10.
  • the protective cover 10 is sealed at its edges by a weld 12.
  • the protective cover 10 is made of a flexible film material which is opaque to visible light but transparent to X-ray light. This can be done for example by black pigmentation of the film material.
  • the protective cover 10 may be designed in the manner of an envelope and have a self-adhesive tab IOC, which is folded over the removal opening, as indicated by dashed lines in FIGS.
  • FIG. 3 schematically shows a readout device 26, which serves to convert latent X-ray images, which were obtained in the storage film 14 when an object is irradiated, into an electrical image which can be displayed, printed or further processed on a screen.
  • the read-out device 16 comprises two delivery units 18A and 18B, which are arranged in alignment behind an inlet slot 22 of a housing 20.
  • the housing 20 also has a guideway 24 for reading
  • the reader 16 Lying between the two conveyor units 18A, 18B, the reader 16 has a scan head 26, which generates a fine laser beam 28 as readout light and includes a detector for registration of triggered in the memory film fluorescent light.
  • the storage film 14 is through the conveyor units
  • the scan head 26 moves the laser beam 28 in the direction perpendicular to the plane of Figure 3 and the plane of movement of the storage film direction. In this way, the individual points of the storage film are read out separately.
  • the output signal of the scan head 26 is applied to an operation and evaluation circuit 30 connected to the scan head
  • the memory film 14 must be the latter surrounding protective cover 10 is removed, since it is impermeable to visible light, the laser beam used for reading
  • the fluorescence light obtained in the excited storage centers is blue.
  • Storage film 14 is in the reader according to FIG.
  • a removal station 32 is provided. Various embodiments thereof are shown in FIGS.
  • Figures 4 to 13 shown in more detail. They work on the same principle: the protective cover 14 is held in an area adjacent to the open end, and by applying a force to the rear edge of the
  • FIGS. 4 to 13 differ in the means for holding the front, open end of the protective cover 10.
  • like reference numerals refer to like-functionally identical components, even though they differ in detail.
  • the squeegee 34 has a perpendicular to the plane extending distribution channel 38 which communicates with a plurality of suction channels 40 in communication, which opens into the conveying path of the protective covers 10 adjacent end face of the squeegee 34.
  • the Andschreibor 36 has a plurality perpendicular to
  • Pressure line 49 are connected.
  • the protective cover 10 with the corresponding wall areas is securely held on the intake channels 42. Thereafter, the pressurization of the bores 48 may be terminated, and, if desired, by pressurizing the drilled holes 48, the piston 46 again be retracted.
  • Figure 5 differs from that of Figure 4, characterized in that above the plunger 46 is still a sealing strip 50 is provided, which is made of flexible rubber material.
  • the adhesive strip 52 is further provided with a pneumatic operated Slider 58 provided, which serves as a movable stop and facilitates a correct alignment of the protective covers 10 with respect to the housing 20 of the readout device 16.
  • the slider 58 also serves to close the
  • Inlet plate 22 if no storage film 14 of a protective cover 10 is to be removed.
  • the slider 58 of the squeegee 34 is arranged opposite. In this way, he can at the same time take over the function of the pressing piston 46.
  • a light-emitting diode 60 and a light-sensitive diode 62 are integrated, which together form a light barrier. This is interrupted when a storage film 14 is introduced with this surrounding protective cover 10 in the removal station 32.
  • a predetermined period of time after interruption of the light barrier can then be released by applying vacuum to the back of the slider 58, the access to the inlet slot 22 automatically.
  • the holding plates 64 are arranged so that they are in the
  • the protective cover 10 is then clamped by the retaining plates 64 in each case against the end faces 44 of the respective retaining strip 66 and thus fixed.
  • the protective cover 10 shown in FIG. 9 has a reinforcing strip 60 provided on one side in the lower edge region of the front wall 10A and provided with recesses 70. These can cooperate in a form-fitting manner with holding plates which are designed similarly to the holding plates 64 of FIG. 8, only being interrupted at the center.
  • the reinforcing strip 68 is made of plastic film of greater material thickness and welded to the front wall 10A of the protective cover 10.
  • the inlet slot 22, the suction strip 34 and the pressure strip 36 are each curved in a part-cylindrical manner.
  • the suction strip 34 and the pressure strip 36 are spaced apart from one another such that the protective cover 10 with the storage film 14 located therein can first be fed without being curved.
  • the protective cover 10 is partially cylindrically curved together with the storage film 14. It can already be adopted in this geometry in the read-out device 16, which has a cylindrical reading surface in order to accomplish the second scanning direction of the storage film by pivoting the laser beam 28 can.
  • a linearly movable slide 70 is provided so that it provides an undisturbed feeding of protective cover 10 with memory sheet therein
  • Figures 12 and 13 show a further modified
  • the housing 20 has a rear housing main part 2OA and a front, about a vertical axis swing-off housing part 2OB.
  • a shallow recess 74 which has walls 76, 78 extending in the longitudinal direction, a rear wall 80 and a front wall 82
  • front and “rear” are here related to the conveying direction of the storage film, otherwise "front” is the operating side of the collection station).
  • the front wall 82 is formed by the side surface of a counter knife 84, which is displaceable perpendicular to the plane of Figure 12 by a drive 86, as shown schematically in Figure 13.
  • the walls 76 to 82 are arranged so that a storage sheet 14 with under sufficient to receive casing material game just form fit in the recess 74 recording.
  • the counter knife 84 has a groove in its front
  • the knife ring 90 is of a
  • Drum portion 94 of the rotary blade 92 worn.
  • the rotary blade 92 is driven by a motor 96, whose housing is seated on a knife carriage 98. This is displaceable in a guide groove 100 of the housing part 2OA.
  • a corresponding aligned porous wall piece 116 is provided in the back of the housing part 2OB. It holds the other side of the protective cover 10 firmly.
  • Photoelectric sensor, the Dorderrittier 18A is set by the control and supply unit 112 in motion, and in a further advancing the storage sheet 14 whose front portion is then taken over by the conveyor unit 18A for further transport.
  • An inlet ramp 124 at the inlet slot 22 ensures centering of the storage film 14 on the guide
  • the storage sheet becomes
  • Figure 14 shows a unit of a storage film
  • the protective cover 10 has seen in the film longitudinal direction larger dimension than the storage film 14.
  • two weak tack welds 134 are provided in front of the front edge of the storage film 14, which are easily broken by the slider 70 can, when the protective cover 10 is held by negative pressure.
  • These tack welds 134 can be produced by using welding tools which have a lower temperature and / or act only for a short time, so that the layers of the
  • Foil material are placed in the appropriate places only for easy adhesion to each other.
  • a vacuum-loaded porous wall piece 116 is used, which lies behind the tack weldings 134 when the protective sheath is inserted in the recess 74.
  • the protective cover 10 was held in each case and the storage film 14 was moved.
  • the storage film 14, e.g. can hold by a stop and the protective cover 10 can shoot open or retreat over the storage sheet 14 by pulling back, so that a larger part of the storage sheet is exposed. At this can then take a conveyor unit of the reader, the storage sheet 14 and further transport.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Radiography Using Non-Light Waves (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention concerne un dispositif permettant de retirer d'une enveloppe protectrice (10) ne laissant pas passer la lumière des films de mémorisation (14) exposés aux rayons X. Ledit dispositif comprend des moyens permettant de maintenir une zone de paroi de l'enveloppe protectrice (10) ainsi que des moyens (70, 120) permettant de déplacer le film de mémorisation (14) par rapport à la zone de paroi de l'enveloppe protectrice (14).
EP10740157A 2009-08-13 2010-07-24 Dispositif permettant de retirer des films de mémorisation d'une enveloppe protectrice Withdrawn EP2465009A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910037062 DE102009037062A1 (de) 2009-08-13 2009-08-13 Einrichtung zum Entnehmen von Speicherfolien aus einer Schutzhülle
PCT/EP2010/004552 WO2011018158A1 (fr) 2009-08-13 2010-07-24 Dispositif permettant de retirer des films de mémorisation d’une enveloppe protectrice

Publications (1)

Publication Number Publication Date
EP2465009A1 true EP2465009A1 (fr) 2012-06-20

Family

ID=42562719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10740157A Withdrawn EP2465009A1 (fr) 2009-08-13 2010-07-24 Dispositif permettant de retirer des films de mémorisation d'une enveloppe protectrice

Country Status (5)

Country Link
EP (1) EP2465009A1 (fr)
AU (1) AU2010281886A1 (fr)
DE (1) DE102009037062A1 (fr)
EA (1) EA201200264A1 (fr)
WO (1) WO2011018158A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8658996B2 (en) * 2011-03-15 2014-02-25 Carestream Health, Inc. Computed radiography scanner and envelope for imaging plates
DE102011110625A1 (de) 2011-08-16 2013-02-21 DüRR DENTAL AG Lichtschutzhülle für ein lichtempfindliches Aufzeichnungsmaterial
DE102011114125A1 (de) 2011-09-23 2013-03-28 DüRR DENTAL AG Lichtschutzhülle für eine Speicherfolie sowie Vorrichtung zum Entfernen einer Lichtschutzhülle von einer Speicherfolie

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2022103C3 (de) * 1970-05-06 1975-01-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung an einem Vorratsmagazin für Blattfilme
JPS49102331A (fr) * 1973-01-31 1974-09-27
FR2604265B1 (fr) * 1986-09-19 1988-12-02 Paulhe Pascal Procede et dispositif de deballage de plaques sensibles pour radiographies dentaires
DE3886235T2 (de) * 1987-01-28 1994-04-14 Fuji Photo Film Co Ltd Blattfilmpackung.
CA2138192C (fr) * 1994-12-15 1998-08-11 Lieven Dirx Methode de chargement a la lumiere de materiaux photosensibles pour la photographie
DE102005046248A1 (de) * 2005-09-27 2007-03-29 Dürr Dental GmbH & Co. KG Vorrichtung zum Auslesen von insbesondere flexiblen Speicherfolien
ATE422250T1 (de) * 2005-11-24 2009-02-15 Agfa Gevaert Healthcare Gmbh Kassette für eine speicherleuchtstoffplatte sowie vorrichtung zur entnahme der speicherleuchtstoffplatte aus der kassette
DE102008061306A1 (de) * 2008-12-11 2010-06-17 DüRR DENTAL AG Einrichtung zum Entnehmen von Speicherfolien aus einer Schutzhülle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011018158A1 *

Also Published As

Publication number Publication date
DE102009037062A1 (de) 2011-02-17
EA201200264A1 (ru) 2012-09-28
AU2010281886A1 (en) 2012-03-22
WO2011018158A1 (fr) 2011-02-17

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