DE19905239B4 - Positioning device for positioning of medical tools for MR-assisted examination and treatment of body parts - Google Patents
Positioning device for positioning of medical tools for MR-assisted examination and treatment of body parts Download PDFInfo
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Classifications
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/702—Posture restraints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/708—Breast positioning means
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
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- 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
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
- A61B2090/374—NMR or MRI
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- 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
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- Health & Medical Sciences (AREA)
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- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Positioniereinrichtung zur Positionierung von medizinischen Werkzeugen (14) zur MR-gestützten Untersuchung und Behandlung von Körperteilen von Patienten oder an anderen Objekten, die auf einer Patientenauflage (4) eines Patiententisches (2) gelagert sind, dadurch gekennzeichnet, dass am Patiententisch (2) ein auswechselbares Rahmengestell (3) befestigt ist, an dem die Patientenauflage (4) sowie ein Fixierungssystem angeordnet sind, mit dessen Hilfe die zu untersuchenden Körperteile oder Objekte während der gesamten Dauer der Untersuchung und Behandlung in definierter Lage im Untersuchungsbereich (19) des Magnetresonanztomographen (18) ortsfest gehalten werden, und an dem sich ein Führungssystem (12) für die benötigten medizinischen Werkzeuge (14) befindet, die über ein computergestütztes Werkzeug-Navigationssystem (13) manuell oder automatisch steuerbar sind.positioning for the positioning of medical tools (14) for MR-guided examination and treatment of body parts of patients or other objects on a patient pad (4) of a patient table (2) are stored, characterized on the patient table (2) an exchangeable frame (3) attached to which the patient support (4) and a fixation system are arranged, with the help of which to be examined body parts or objects during the duration of the examination and treatment in defined Position in the examination area (19) of the magnetic resonance tomograph (18) to be held stationary, and to which a management system (12) for The necessities medical tools (14) located, which has a computerized tool navigation system (13) are manually or automatically controllable.
Description
Die Erfindung betrifft eine Positioniereinrichtung zur Positionierung von medizinischen Werkzeugen zur MR-gestützten Untersuchung und Behandlung von Körperteilen von Patienten oder an anderen Objekten, die auf einer Patientenauflage eines Patiententisches gelagert sind.The The invention relates to a positioning device for positioning from medical tools to MR-assisted Examination and treatment of body parts of patients or on other objects resting on a patient support of a patient table are stored.
Die
Magnetresonanztomographie (MRT) ist ein strahlungsfreies bildgebendes
Verfahren und gewinnt zunehmend an Bedeutung in der medizinischen
Diagnostik und Therapie. Speziell in der Mammadiagnostik stellt
die Magnetresonanztomographie aufgrund ihrer hohen Sensitivität und ihres hervorragenden
Weichteilkontrastes eine wertvolle Ergänzungsmethode zur Aufdeckung
von kleinsten suspekten, nicht palpablen Gewebebereichen (mit und
ohne Kontrastmittelapplikation) im Vergleich zu anderen bildgebenden
Verfahren dar. Innerhalb der Mammadiagnostik hat sich die MR-gestützte Gewebebiopsie
mit z.B. einer Stanzbiopsienadel als eine weit verbreitete und angewendete
Methode zur histologischen Beurteilung erkrankter Körperregionen, wie
z.B. durch Mammakarzinome, durchgesetzt. Biopsieapparaturen oder
MR-Brustspulen für
die magnetresonanztomographisch gestützte Mammabiopsie sind allgemein
bekannt (z.B.
Es
sind verschiedene Konzepte zur äußeren Fixierung
von insbesondere weichen anatomischen Strukturen bekannt. So können Körperteile
in der in
Zur
Navigation und Positionierung von diagnostischen und therapeutischen
Instrumenten sind eine Reihe von Verfahren und stereotaktischen
Vorrichtungen bekannt. So können
Instrumente mittels der in
Eine
Bildakquisition von fixierten anatomischen Strukturen, insbesondere
der Mamma, mittels Magnetresonanztomographie, mit dem Ziel einer bildbasierten
Instrumentenführung
ist aus einer Vielzahl von Quellen bekannt. So werden nach
In
Es
ist nach
Es
ist nach
Es sind jedoch bisher keine Verfahren oder Konzepte einer automatischen, manuell oder nicht manuell gesteuerten Navigation und Positionierung von medizinischen Instrumenten innerhalb des Magnetresonanztomographen bekannt.It However, no methods or concepts of an automatic, manual or not manually controlled navigation and positioning of medical instruments within the magnetic resonance tomograph known.
Die praktizierte MR-basierte Instrumentennavigation und -positionierung sieht eine Verlagerung des Patienten aus dem Isozentrum des MRT in einen vorgelagerten, dem medizinischen Personal zugänglichen Bereich vor.The practiced MR-based instrument navigation and positioning sees a shift of the patient from the isocenter of the MRI in an upstream, the medical staff accessible Area in front.
Wesentlicher Grund dafür sind im allgemeinen die engen Platzverhältnisse innerhalb des Untersuchungsbereiches dieser Geräte, wodurch besonders bei einem geschlossenen MRT, die Bewegungsfreiheit des Anwenders oder die Zugänglichkeit medizinischer Instrumente zu dem Untersuchungsobjekt stark eingeschränkt ist.essential the reason for this are generally the tight space within the study area these devices, especially for a closed MRI, freedom of movement of the user or accessibility medical instruments to the examination object is severely limited.
Mit der oben genannten Patientenverlagerung aus dem Untersuchungsbereich des MRT, die im allgemeinen über eine Verschiebung des Patiententisches erfolgt, muss zusätzlich mit möglichen Körperbewegungen des Patienten gerechnet werden. Dadurch kann sich aber die Genauigkeit der Biopsie durch Verschiebungen zuvor ermittelter Biopsiezielkoordinaten, insbesondere bei der Erfassung von Kleinsttumoren, stark verringern. Zur Sicherstellung der Biopsie-Treffer werden häufig mehrfache Wiederholungen der einzelnen Untersuchungsschritte notwendig, wodurch oft längere Untersuchungszeiten mit hohen Patientenbelastungen wie auch unwirtschaftliche Untersuchungskosten die Folge sind. Des Weiteren konnte festgestellt werden, dass einige der zurzeit verwendeten Biopsiesysteme nicht vollständig MR-kompatibel sind, so dass während der Schnittbilderstellung mit Bildstörungen (Artefakten) oder unerwünschten Deflektionen von z.B. medizinischen Nadeln im Magnetfeld zu rechnen ist. Die Fixierung der zu untersuchenden Objekte erfolgt bei den bekannten Systemen hauptsächlich nach subjektiven Aspekten, so dass Zirkulationsstörungen im Gewebe die Folge sein können.With the above-mentioned patient relocation from the examination area of the MRI, which in general over a shift of the patient table takes place, must be in addition with possible body movements of the patient. This can affect the accuracy the biopsy by shifts of previously determined biopsy target coordinates, especially in the detection of very small tumors. To ensure the biopsy hits are often repeated repetitions the individual examination steps necessary, whereby often longer examination times with high patient loads as well as uneconomical examination costs the result. Furthermore, it was found that some of the currently used biopsy systems are not fully MR compatible, so that while the Schnittbildstellung with picture disturbances (artifacts) or unwanted Deflections of e.g. computing medical needles in the magnetic field is. The fixation of the objects to be examined takes place at the known systems mainly according to subjective aspects, so that circulatory disorders in the tissue the result can be.
Als zukünftige Ergänzungen zu den MR-gestützten diagnostischen Anwendungen sind therapeutische Behandlungsverfahren unter MR-Kontrolle zu nennen, die sowohl in Einzelsitzungen oder direkt im Anschluss an die diagnostische Untersuchung angewendet werden könnten, wie zum Beispiel mit einer Laserbehandlung von Mammakarzinomen als zukünftiges Behandlungsverfahren. Systeme, mit denen beispielsweise eine gezielte Therapie mittels Laserapplikatoren im MRT möglich wäre; sind zur Zeit nicht bekannt.When future additions to the MR-based Diagnostic applications are therapeutic treatment procedures to call under MR control, both in individual sessions or applied immediately after the diagnostic examination could become, such as with a laser treatment of breast cancer as a future Treatment methods. Systems with which, for example, a targeted Therapy using laser applicators on MRI would be possible; are currently unknown.
Der Erfindung liegt nun die Aufgabe zugrunde, die Durchführung von MR-gestützten Gewebebiopsien oder minimalinvasiven therapeutischen Eingriffen innerhalb eines MRT schneller, effizienter und mit einer hohen Genauigkeit durchzuführen, ohne dass eine Patientenverlagerung aus dem homogenen Magnetfeldbereich des MRT während der gesamten Untersuchung/Behandlung notwendig ist.Of the Invention is now the object of the implementation of MR-guided Tissue biopsies or minimally invasive therapeutic procedures within an MRI faster, more efficiently and with a high degree of accuracy perform, without a patient relocation from the homogeneous magnetic field area of the MRI during the entire examination / treatment is necessary.
Diese Aufgabe wird durch die im Patentanspruch 1 aufgeführten Merkmale gelöst.These Task is achieved by the features listed in claim 1 solved.
Ein Vorteil der Erfindung ist, dass die Positioniereinrichtung ein automatisch gesteuertes Werkzeug-Navigationssystem umfasst, mit dem sich Gewebebiopsien oder minimal-invasive therapeutische Eingriffe mit hoher Genauigkeit durchführen lassen. Ein weiterer Vorteil ist, dass die Lage zwischen dem Patienten und dem bildgebenden Gerät (MRT) während des gesamten Untersuchungsvorganges oder während einer Behandlung unverändert ist. Einen Vorteil bildet auch das Fixierungssystem aus individuell verstellbaren Fixierungseinheiten, die lösbar mit dem Rahmengestell verbunden sind und kontrollier- sowie reproduzierbare Fixierungen von Körperteilen/Objekten ermöglichen.One Advantage of the invention is that the positioning automatically Controlled tool navigation system includes tissue biopsies or minimally invasive therapeutic interventions with high accuracy carry out to let. Another advantage is that the location between the patient and the imaging device (MRI) during the whole examination procedure or during a treatment is unchanged. Another advantage is the fixation system made of individually adjustable Fixation units that are detachable connected to the frame and controllable and reproducible Fixations of body parts / objects enable.
Bei einer weiteren vorteilhaften Ausführung ist das Rahmengestell so ausgebildet, dass es den Zugang zum Patienten oder zu den Untersuchungsobjekten und Systemkomponenten der Positioniereinrichtung von allen Seiten ermöglicht, wobei innerhalb des Rahmengestelles ein Freiraum existiert, in dem die zu untersuchenden/behandelnden Körperteile/Objekte innerhalb des Untersuchungsbereiches des bildgebenden Gerätes (MRT) stabilisiert, diagnostiziert und therapiert werden können. at A further advantageous embodiment is the frame designed so that it gives access to the patient or to the examination objects and system components of the positioning device from all sides allows wherein within the framework a free space exists in the the body parts / objects to be examined / treated within the examination area of the imaging device (MRI) stabilized, diagnosed and can be treated.
Eine weitere vorteilhafte Ausführung der Positioniereinrichtung besteht darin, dass alle verwendeten Systemkomponenten und Werkzeuge aus MR-kompatiblen Materialien bestehen, wodurch eine MR-gestützte Untersuchung/Behandlung auch innerhalb des Untersuchungsbereiches möglich ist. Zudem begünstigen diese Materialien einen störungsfreien Einsatz während der Bildgebung und vermeiden unerwünschte Deflektionen im MRT-Magnetfeld.A further advantageous embodiment the positioning device is that all used System components and tools consist of MR-compatible materials, resulting in an MR-assisted examination / treatment is also possible within the examination area. In addition, favor These materials are trouble-free Use during Imaging and avoid unwanted deflections in the MRI magnetic field.
Ein Ausführungs- und Anwendungsbeispiel der Erfindung wird anhand von fünf Figuren näher erläutert. Es zeigen:One execution and application example of the invention will be described with reference to five figures explained in more detail. It demonstrate:
In
Wie
in
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zeigen
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Claims (31)
Priority Applications (1)
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DE19905239A DE19905239B4 (en) | 1999-02-02 | 1999-02-02 | Positioning device for positioning of medical tools for MR-assisted examination and treatment of body parts |
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DE19905239A DE19905239B4 (en) | 1999-02-02 | 1999-02-02 | Positioning device for positioning of medical tools for MR-assisted examination and treatment of body parts |
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US6582381B1 (en) | 2000-07-31 | 2003-06-24 | Txsonics Ltd. | Mechanical positioner for MRI guided ultrasound therapy system |
US7259019B2 (en) | 2002-03-11 | 2007-08-21 | Pawliszyn Janusz B | Multiple sampling device and method for investigating biological systems |
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US9733234B2 (en) | 2002-03-11 | 2017-08-15 | Jp Scientific Limited | Probe for extraction of molecules of interest from a sample |
US20090026122A1 (en) | 2002-03-11 | 2009-01-29 | Janusz | Biocompatible solid-phase microextraction coatings and methods for their preparation |
AU2003208226A1 (en) | 2002-03-11 | 2003-09-22 | Janusz B. Pawliszyn | Micro-devices and analytical procedures for investigation of biological systems |
US9870907B2 (en) | 2002-03-11 | 2018-01-16 | Jp Scientific Limited | Probe for extraction of molecules of interest from a sample |
US8598325B2 (en) | 2002-03-11 | 2013-12-03 | Janusz B. Pawliszyn | Solid-phase microextraction coatings and methods for their preparation |
EP1642148A1 (en) * | 2003-06-30 | 2006-04-05 | Koninklijke Philips Electronics N.V. | Table position sensing for magnetic resonance imaging |
DE102005023121B4 (en) * | 2005-05-19 | 2010-10-07 | Dresel, Christian, Dr.med. | Device and method for automatic application and / or stimulation in magnetic resonance imaging (MRI) |
DE102011006353A1 (en) | 2011-03-29 | 2012-10-04 | Siemens Aktiengesellschaft | mammography system |
JP6360898B2 (en) * | 2013-09-18 | 2018-07-18 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | Intervention tool stepper for electromagnetic tracking |
JP6930978B2 (en) | 2016-03-02 | 2021-09-01 | ジェイ・ピィ・サイエンティフィック・リミテッドJp Scientific Limited | Solid-phase microextraction coating |
EP3455870A4 (en) | 2016-05-10 | 2019-12-11 | JP Scientific Limited | System and method for desorbing and detecting an analyte sorbed on a solid phase microextraction device |
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US5569266A (en) * | 1991-03-11 | 1996-10-29 | Fischer Imaging Corporation | Magnetic resonance imaging device useful for guiding a medical instrument |
US5590653A (en) * | 1993-03-10 | 1997-01-07 | Kabushiki Kaisha Toshiba | Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging |
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1999
- 1999-02-02 DE DE19905239A patent/DE19905239B4/en not_active Revoked
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5569266A (en) * | 1991-03-11 | 1996-10-29 | Fischer Imaging Corporation | Magnetic resonance imaging device useful for guiding a medical instrument |
US5590653A (en) * | 1993-03-10 | 1997-01-07 | Kabushiki Kaisha Toshiba | Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging |
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DE19905239A1 (en) | 2000-08-31 |
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