EP1742579A1 - Diagnosegerät - Google Patents
DiagnosegerätInfo
- Publication number
- EP1742579A1 EP1742579A1 EP05759603A EP05759603A EP1742579A1 EP 1742579 A1 EP1742579 A1 EP 1742579A1 EP 05759603 A EP05759603 A EP 05759603A EP 05759603 A EP05759603 A EP 05759603A EP 1742579 A1 EP1742579 A1 EP 1742579A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- generating
- series
- diagnostic device
- diagnostic
- 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.)
- Ceased
Links
- 238000011282 treatment Methods 0.000 claims abstract description 16
- 238000002591 computed tomography Methods 0.000 claims abstract description 4
- 238000002604 ultrasonography Methods 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims description 8
- 238000001931 thermography Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 238000010894 electron beam technology Methods 0.000 claims description 4
- 210000002683 foot Anatomy 0.000 description 16
- 239000000463 material Substances 0.000 description 12
- 210000003423 ankle Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 238000003325 tomography Methods 0.000 description 3
- 208000012661 Dyskinesia Diseases 0.000 description 2
- 208000015592 Involuntary movements Diseases 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 210000000845 cartilage Anatomy 0.000 description 2
- 230000017311 musculoskeletal movement, spinal reflex action Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 210000000683 abdominal cavity Anatomy 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
- 210000000544 articulatio talocruralis Anatomy 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 210000002346 musculoskeletal system Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- -1 polyoxymethylene Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009747 swallowing Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/548—Remote control of the apparatus or devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/11—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00681—Aspects not otherwise provided for
- A61B2017/00694—Aspects not otherwise provided for with means correcting for movement of or for synchronisation with the body
- A61B2017/00699—Aspects not otherwise provided for with means correcting for movement of or for synchronisation with the body correcting for movement caused by respiration, e.g. by triggering
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/508—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for non-human patients
Definitions
- the invention relates to a diagnostic device with a device for generating a series of image recordings and a device for generating a passive movement of an object with a motor-driven, pivotable about at least one axis support for storing at least part of the object, which in the device for generating a Series of image recordings is retractable.
- Magnetic resonance tomographs are also used, which also enable the display of soft structures.
- the movement sequence of a (healthy) joint with tendons, cartilages and the like can be researched using such a method.
- Magnetic resonance tomographs are also often used to test materials and to test the behavior of different objects.
- a manipulator for positioning medical instruments on the patient in a magnetic resonance tomograph (MRT) or a computer tomograph (CT) is known.
- MRT magnetic resonance tomograph
- CT computer tomograph
- the patient is kept calm on a patient couch so that no injuries to the patient can occur.
- a device for generating a passive movement of a patient in a magnetic resonance tomograph is known from WO 03/082107.
- magnetic resonance tomography the influence and density of atoms and the relaxation times for magnetization of the materials are recorded by a strong magnetic field in order to be reconstructed computationally with the help of a computer to form a sectional image. Different materials can therefore be displayed differently well with magnetic resonance tomography.
- the duration of an MRI scan is comparatively long even in modern devices, so that image involvement, which can reduce diagnostic significance, can be caused by involuntary movements of a patient, such as breathing or swallowing movements, which are referred to as artifacts. This also extends the duration of the examination, which some patients find unpleasant.
- the device for generating a series of image recordings is a computer tomography device, an ultrasound device, a gamma camera, a thermography device, an X-ray device or a sonography device, in which, in addition to the device for generating a Passive movement of an object is arranged at least one device that can be moved stereotactically and is driven by a motor to carry out a treatment or examination, and that the drive for pivoting the support and / or the Drive of the device for carrying out a treatment or examination is controlled via a control unit or control unit in such a way that the series of image recordings is generated in real time during a passive movement of the object or the device for carrying out a treatment or examination.
- the device for generating a series of image recordings is preferably a spiral computer tomograph or an electron beam computer tomograph.
- a spiral computer tomograph a patient or an object is scanned continuously by a rotating X-ray tube while a support, for example a patient bed, is being moved.
- the examination time is considerably shortened and the radiation dose can also be reduced be reduced.
- the diagnostic informative value increases, since image errors caused by breathing or involuntary movements practically no longer occur. This applies in particular to examinations of the chest cavity, the lungs or the abdominal cavity. This applies in the same way to diagnoses in the area of the neck or head, which can be of great importance, for example, for orthopedic questions.
- a modern sixteen-line spiral computer tomograph delivers a variety of images in a very short time, which enable the representation of an organ from different spatial perspectives. Up to 16 data lines are recorded during one revolution of the X-ray tube, which takes about 0.4 s. Such a spiral computer tomograph is therefore particularly suitable for real-time recordings of a defined passive movement for the diagnostic assessment of joint mechanics, bone or cartilage gliding, fracture gap manipulation or other movement analyzes. Electron beam computer tomographs are also suitable for such examinations, and are also characterized by very fast recording times of approximately 100 ms. With such devices, it is possible to take slice images of moving organs in real time.
- the device for generating a series of image recordings can also be used as a positron emission tomograph (PET), a single photon emission computer tomograph (SPECT), a gamma camera for static or dynamic scintigraphy, a digital infrared thermography device, a dynamic area thermography device or a digital X-ray device.
- PET positron emission tomograph
- SPECT single photon emission computer tomograph
- a gamma camera for static or dynamic scintigraphy for static or dynamic scintigraphy
- a digital infrared thermography device a dynamic area thermography device or a digital X-ray device.
- the drive for pivoting the support or the treatment or examination device being carried out by means of a piezoelectric motor.
- a piezoelectric motor to drive the support or the treatment or examination device
- pneumatic or hydraulic drives for this.
- the drive for pivoting the support is preferably controlled via a control unit or control unit which is grounded and shielded from magnetic radiation.
- the drives can also be connected to the control system via grounded lines shielded from magnetic radiation and / or wirelessly, for example via an infrared remote control.
- the position between the part of the body to be examined and the diagnostic device can remain unchanged during the entire diagnostic process. At the same time, however, precisely defined movements controlled by motors can be carried out for the first time during the recording process. On the one hand, this enables the examiner to create a specific image in a targeted manner, but on the other hand it also shows the movement itself in terms of a real-time image.
- control of the support can be further improved in that the control unit is provided with at least one sensor, in particular with an optical encoder, for detecting the position of the support or the motors.
- the support can be pivoted about two axes independently of one another and driven by a motor. This allows the physiological movements of the body parts to be examined to be represented even better.
- the physiological course of movement of an ankle can be reproduced particularly well with the device according to the invention if the support is inclined about a first horizontal axis and a second second axis inclined by approximately 35 ° in the horizontal plane and by approximately 18 ° in the sagittal plane is pivotable.
- This inclination of the second axis speaks the average geometric axis of the lower ankle determined by Van den Bogard.
- the pressure forces acting on the ankle for example, when running can be simulated in the diagnostic device during the examination in that means are provided for fixing the at least one part of the patient's body on the support and that the support is at least partially relative to the means for fixing is movable.
- the support is preferably pneumatically or hydraulically movable relative to the means for fixing the body part. In this way, a gradual compression of the body part to be examined can take place, which also leads to a change in the configuration of the individual parts of the body, which are simulated, for example, when walking or the like.
- FIG. 1 shows a longitudinal section through the channel of a diagnostic device with a device according to the invention arranged on a patient couch
- FIG. 2 shows a sectional view of the device perpendicular to the sectional plane of FIG. 1,
- Fig. 3 is a side view of the device of Fig. 2 and
- the diagnostic device shown in the figures consists of a device for generating a series of image recordings, which is formed by an ultrasound device or a computed tomography device, hereinafter referred to briefly as a recording device, such as a spiral computer tomograph or an electron beam computer tomograph, and one in the following Device described in detail for generating a passive movement of an object, in particular a body part of a patient.
- a recording device such as a spiral computer tomograph or an electron beam computer tomograph
- the diagnostic device can have a device for carrying out a treatment or examination that is stereotactically movable and motor-driven, independently of the device for generating a passive movement, which device is not shown in the figures.
- This device makes it possible to carry out examinations, such as taking tissue samples or optical examinations, or alternative treatments with a scalpel, a syringe or the like.
- These instruments can be moved relative to a part of a patient's body in a targeted manner on two levels in space are images of this examination or treatment are simultaneously generated in real time by the recording device. The position of the instrument on or in the body part of a patient can thus be monitored at any time and optimally controlled.
- both the device for carrying out the treatment or examination and the associated control and drive elements are made of a material that is compatible with the recording device.
- the recording device is indicated in FIG. 1 by its channel 38.
- the device for generating a passive movement is set up to examine the ankle.
- the device has a support 14 for the heel of the foot and an angled support 17 for the sole of the foot.
- the inner and outer ankles of the foot are stabilized by side walls 15, while the support 17 for the sole of the foot is held on a rear wall 16.
- the foot to be examined is indicated schematically by reference number 19.
- the device for generating a passive movement is fastened on a patient couch 35 by means of an indicated connection unit 30.
- a patient lying on his back can be inserted with the patient bed 35 into the channel 38 of the recording device, the device being arranged at one end of the patient bed 35.
- the foot can be kept fixed in the device with buckles 18.
- the foot that is not to be examined can be placed on a further support 29 and is not included in the examination.
- the device for generating a passive movement arranged on the patient couch 35 further comprises two vertical side walls 1 and a vertical front wall 2 which merges into a horizontal front wall 3.
- a vertical rear wall 4 is provided on the side opposite the vertical front wall 2, which is connected to a lower horizontal rear wall 5.
- a further vertical wall 6 runs parallel to the side walls 1 and is pivotally connected to the side walls 1 via ball bearings 13 about a horizontal axis 33.
- the vertical walls 6 are connected to one another via a rear wall 11 and a V-shaped bottom wall 12.
- the fastening unit 9 In the V-shaped bottom wall 12 two recesses 27 are provided, in which a fastening unit 9 can be received. Via an intermediate part 8, the fastening unit 9 carries a further fastening unit 10 with a gearwheel on which the support 14 for the heel and the rear wall 16 with the support 17 for the sole of the foot are attached.
- the pad 14 for the heel and the Back wall 16 with the support 17 for the sole of the foot can be rotated relative to the mounting unit 9 via the fastening unit 10, the support 14 for the heel with the back due to the inclination of the V-shaped bottom wall 12 and the corresponding design of the fastening units 9 and 10 - Wall 16 and the support 17 for the sole of the foot by about 35 ° in the horizontal plane and by about 18 ° in the sagittal plane with respect to the vertical axis 34 are rotatable.
- a piezoelectric motor 22 is assigned to the fastening units 9 and 10 and carries a gear 7 with a conical tip for moving the fastening unit 10 relative to the fastening unit 9.
- a piezoelectric motor 23 is provided on the vertical side wall 1, which carries a first gearwheel 24, which can be brought into engagement with a gearwheel 26 via a further gearwheel 25, which gearwheel is non-rotatably connected to one of the side walls 6. In this way, the side walls 6 can be pivoted relative to the side walls 1 driven by the motor 23.
- a pressure valve unit 20 is arranged on the rear wall 16, with which the support 17 for the sole of the foot can be displaced relative to the rear wall 16. In this way, pressure can be continuously applied to the sole of the foot.
- Two optical encoders 21 are positioned in one of the side walls 1 and can detect the position of the side walls 6 relative to the side walls 1.
- the data determined by the encoders 21 can be forwarded via lines (not shown) to an electrical box 28, which in turn is connected to a control unit 32 (control unit) via a shielded cable 36.
- the motors 22 and 23 are also controlled by the control unit 32 via shielded cables 37.
- ferrite cores 31 are arranged on the shielded lines 36 and 37.
- the lines 36 and 37 are connected to the control unit 32 via likewise shielded cable connectors 39.
- the materials used for the device for generating a passive movement do not generate image artifacts that make diagnosis impossible. These are, for example, VA4 stainless steel screws and threads, aluminum plates, pins, screws and air pressure nozzles made of brass, plastic screws, and glass and ceramic ball bearings.
- the use of polyoxymethylene semi-tools (POM) is particularly favorable, since this plastic can absorb a high-frequency field (HF) and therefore does not generate any interfering radiation.
- the embodiment of the device for generating a passive movement shown is specifically designed for the examination of ankle joints.
- the motors 22 and 23 can rotate the support 14 for the heel and the support 17 connected to the rear wall 16 for the sole of the foot in such a way that the physiological movement of the ankle is simulated.
- the recording device is connected to the drive of the device for generating a passive movement such that the recordings can be made while the passive movement is being generated.
- kinematic (real-time) recordings during the passive movement of the body part and static recordings from different positions within the channel 38 of the recording device for research and routine clinical diagnosis.
- These real-time recordings of the movement sequence thereby considerably expand the possible uses of the recording devices known per se. 4 shows that the channel 38, in which the patient bed 35 can be displaced, is arranged in a computer tomograph as a recording device in a computer tomograph room 40, while the control unit 32 and possibly a power supply unit 41 with on - Connected to a power source for energy supply outside the room 40 are positioned.
- the device for generating a passive movement is supplied with energy and controlled via cables 36 and 37. However, it is also possible to carry out the control and / or the power supply wirelessly.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Optics & Photonics (AREA)
- Radiology & Medical Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004020783A DE102004020783A1 (de) | 2004-04-27 | 2004-04-27 | Diagnosegerät |
PCT/EP2005/004511 WO2005102173A1 (de) | 2004-04-27 | 2005-04-27 | Diagnosegerät |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1742579A1 true EP1742579A1 (de) | 2007-01-17 |
Family
ID=34972174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05759603A Ceased EP1742579A1 (de) | 2004-04-27 | 2005-04-27 | Diagnosegerät |
Country Status (5)
Country | Link |
---|---|
US (1) | US7822462B2 (ja) |
EP (1) | EP1742579A1 (ja) |
JP (1) | JP2007534396A (ja) |
DE (1) | DE102004020783A1 (ja) |
WO (1) | WO2005102173A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60310078T2 (de) * | 2002-07-09 | 2007-06-06 | AECC ENTERPRISES LTD., Bournemouth | Verfahren zur bilddarstellung der relativen bewegung von skelettsegmenten |
WO2006119420A1 (en) * | 2005-05-02 | 2006-11-09 | Xoran Technologies, Inc. | Ct scanner for lower extremities |
US8676293B2 (en) * | 2006-04-13 | 2014-03-18 | Aecc Enterprises Ltd. | Devices, systems and methods for measuring and evaluating the motion and function of joint structures and associated muscles, determining suitability for orthopedic intervention, and evaluating efficacy of orthopedic intervention |
US20090099481A1 (en) | 2007-10-10 | 2009-04-16 | Adam Deitz | Devices, Systems and Methods for Measuring and Evaluating the Motion and Function of Joints and Associated Muscles |
KR101040690B1 (ko) * | 2008-10-21 | 2011-06-10 | 최종수 | 지방흡입용 핸들 |
US9101752B2 (en) * | 2008-11-17 | 2015-08-11 | Sunnybrook Health Sciences Centre | Computer controlled focused ultrasound positioning system for sequential beam emitting to sonicate discrete and interleaved tissue locations |
US20100311109A1 (en) * | 2009-06-03 | 2010-12-09 | Salaimeh Ahmad A | Non-contact method for quantifying changes in the dynamics of microbial populations |
US9138163B2 (en) | 2009-09-25 | 2015-09-22 | Ortho Kinematics, Inc. | Systems and devices for an integrated imaging system with real-time feedback loop and methods therefor |
JP5356173B2 (ja) * | 2009-09-30 | 2013-12-04 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 医用画像撮影システム |
DE102010023313A1 (de) * | 2010-06-10 | 2011-12-15 | Jörg Mudrak | Verfahren zur Erzeugung von Bewegungsartefakten in einem Bild und eine dafür benötigte Einrichtung |
EP3150113A1 (en) | 2010-12-13 | 2017-04-05 | Ortho Kinematics, Inc. | Methods, systems and devices for clinical data reporting and surgical navigation |
US20160354161A1 (en) | 2015-06-05 | 2016-12-08 | Ortho Kinematics, Inc. | Methods for data processing for intra-operative navigation systems |
US10517558B2 (en) * | 2016-06-01 | 2019-12-31 | Stellenbosch University | Ankle imaging accessory |
US11013476B1 (en) | 2020-06-08 | 2021-05-25 | SIMULATE Technologies, LLC | Weightbearing simulation assembly and methods of using the same to image a subject |
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-
2004
- 2004-04-27 DE DE102004020783A patent/DE102004020783A1/de not_active Withdrawn
-
2005
- 2005-04-27 JP JP2007509963A patent/JP2007534396A/ja active Pending
- 2005-04-27 WO PCT/EP2005/004511 patent/WO2005102173A1/de active Application Filing
- 2005-04-27 US US11/115,972 patent/US7822462B2/en not_active Expired - Lifetime
- 2005-04-27 EP EP05759603A patent/EP1742579A1/de not_active Ceased
Non-Patent Citations (1)
Title |
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See references of WO2005102173A1 * |
Also Published As
Publication number | Publication date |
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JP2007534396A (ja) | 2007-11-29 |
DE102004020783A1 (de) | 2005-11-24 |
WO2005102173A1 (de) | 2005-11-03 |
US20060020196A1 (en) | 2006-01-26 |
US7822462B2 (en) | 2010-10-26 |
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