WO2005041777A1 - Dispositif de positionnement de patient pour un tomodensitometre - Google Patents

Dispositif de positionnement de patient pour un tomodensitometre Download PDF

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Publication number
WO2005041777A1
WO2005041777A1 PCT/EP2004/052688 EP2004052688W WO2005041777A1 WO 2005041777 A1 WO2005041777 A1 WO 2005041777A1 EP 2004052688 W EP2004052688 W EP 2004052688W WO 2005041777 A1 WO2005041777 A1 WO 2005041777A1
Authority
WO
WIPO (PCT)
Prior art keywords
patient
positioning device
bed
patient positioning
boom
Prior art date
Application number
PCT/EP2004/052688
Other languages
German (de)
English (en)
Inventor
Frank Bartels
Gerhard Helmreich
Stefan Leidenberger
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP04791324A priority Critical patent/EP1677678A1/fr
Priority to US10/577,845 priority patent/US20070094797A1/en
Priority to JP2006537300A priority patent/JP2007509672A/ja
Publication of WO2005041777A1 publication Critical patent/WO2005041777A1/fr

Links

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
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0487—Motor-assisted positioning

Definitions

  • the invention relates to a patient positioning device for a computer tomography device.
  • a computer tomography device or shorter CT device, is used to generate three-dimensional or sectional images of a body.
  • the image data are based on two-dimensional
  • X-ray projections of the body are calculated by a computer.
  • an X-ray source and an image detector rotate diametrically opposite one another around the body. The rotation takes place within a so-called gantry, which has an examination opening into which it can be pushed.
  • a patient positioning device must therefore ensure a sufficiently stable positioning of the patient's body and should e.g. no noteworthy deflection due to patient weight z; own. At the same time, however, an elaborate construction for supporting the patient's body in the examination opening of the gantry is prohibited, since disturbing image artifacts would be generated there.
  • a patient positioning device should be flexibly adjustable so that the handling of a patient when moving to the patient positioning device and the medical care of a patient already on it is simplified. For example, it may be desirable that the patient support device can be lowered for laying on the patient and can be raised for exiting the patient. Last but not least, good accessibility for medical operating personnel is advantageous, which is why the space below the patient positioning device should be as free and unobstructed as possible.
  • a patient positioning device is known from DE 101 08 549, which enables flexible positioning and ensures a stable position of the patient's body in the examination opening of the gantry of a CT device.
  • it offers no possibility of height adjustment and has a massive structure below the patient lying on it, which makes access more difficult.
  • the object of the invention is to provide a patient positioning device for a computer tomography device which ensures a stable position of the patient's body in the examination opening of the gantry, at the same time is flexibly adjustable in its position and has good accessibility for medical operating personnel.
  • a basic idea of the invention is to provide a patient positioning device for a computer tomography device, which comprises a gantry supported on a foot, the patient positioning device comprising a bed guide for a patient bed, and having an extension arm which is on or on the foot is supported by a swivel joint rotatable about a horizontal axis, and wherein the bed guide is mounted on the boom by a swivel joint rotatable about a horizontal axis, and wherein the height of the bed guide is adjustable.
  • couch guidance is to be understood as a constructive element that enables the attachment of a patient couch.
  • the bed guide can have a possibility for a fixed connection to a patient bed, but it can also be designed as a rail-like guide that allows the patient bed to be placed on or pushed in and guides it in the longitudinal direction.
  • the movement of the patient bed which results from the rotatable attachment of the extension arm at the foot of the gantry, has the further advantage that the patient bed is simultaneously moved away from the gantry when a patient is placed on it.
  • the greater distance to the gantry improves the accessibility of the patient bed, and any gantry operation that may occur at the same time is less disturbed. For example, a CT examination can be carried out undisturbed while a patient is placed on the lowered patient table.
  • the bed guide is simultaneously moved closer to the gantry when lifting, which improves the wear on the patient bed and thus the patient's body in the examination area.
  • the lever with which the patient's weight is supported in relation to the bed guide and causes the patient bed to bend is reduced.
  • the patient positioning device has a height adjustment device which is connected to the boom in such a way that it can rotate it about the swivel joint through which the boom is mounted on or on the foot.
  • the height adjustment device has a motor that adjusts the boom, for example, by means of a worm drive on the motor side and a gearwheel on the boom side.
  • the motor can also drive hydraulics that drive the boom around the swivel.
  • the height adjustment Actuating device ensures an automatic adjustment of the height of the patient bed and thus facilitates the work of the medical operating personnel.
  • the patient support device has a support arm which is mounted on the extension arm by means of a swivel joint which can be rotated about a horizontal axis, and on which the bed guide is supported by a swivel joint which can be rotated about a horizontal axis, and. the length of which is automatically adjustable in such a way that the orientation of the bed guide remains stable regardless of the boom being turned. This ensures that a patient can be placed on the horizontally oriented patient bed, for example, and that this horizontal orientation is maintained when the height of the patient bed is adjusted.
  • Maintaining orientation is, on the one hand, pleasant for the patient, who is automatically moved by the patient positioning device. On the other hand, it enables the patient to be positioned with the patient bed lowered in exactly the position and position in which the subsequent CT examination is to be carried out. Changes in the patient position during the delivery movement of the patient positioning device to the gantry, which could cause movements of the patient and thus disruptive movement artifacts in the CT image data, are thus avoided.
  • the automatic adjustment of the length of the support arm can be realized according to the same mechanical principle as the rotating movement of the boom. If, for example, the rotary movement is realized purely mechanically, for example by means of a worm drive and a gear wheel, the length of the support arm can also be brought about by a mechanical gear wheel or lever system. If, on the other hand, the rotary movement of the boom is hydraulically driven, the length of the support arm can also be hydraulically adjusted.
  • the hydraulic adjustment enables a particularly flexible mobility of both the extension arm and the support arm, so that the height of the patient couch and the orientation of the support arm can be freely adjusted independently of one another via the extension arm.
  • the longitudinal adjustment of the support arm In order to be able to maintain the orientation of the bed guide when adjusting the jib, the longitudinal adjustment of the support arm must be matched to the movement of the jib.
  • the hydraulic system can adjust the longitudinal adjustment according to a characteristic curve in
  • the characteristic curve depends on the geometric relationships of the boom and the support arm and their swivel joints.
  • a computer tomography device has a patient positioning device on each side of the passage opening of the gantry. This enables a particularly smooth and fast procedure for the CT examination of several patients.
  • the patient table is lowered and thus moved away from the gantry. This opens the examination opening for the immediate examination of the next patient, who is moved towards the examination opening by the delivery movement of the patient positioning device.
  • the patient bed of the patient to be examined can then be pushed into the bed guide of the patient positioning device on the opposite side, which has now become free.
  • the patient's CT examination then begins while the patient positioning device on this side is lowered again in order to be able to take up the next patient.
  • FIG 2 CT device with patient positioning device in side view
  • FIG. 1 shows a CT device 1 with a patient positioning device in a perspective view.
  • the CT device 1 has a gantry 3 with an examination opening.
  • the gantry 3 rests on a foot 5.
  • a patient who is to be examined is placed on a patient couch 9, which is inserted into the couch guide 7.
  • the bed guide 7 guides the patient bed 9 such that it can be moved in the longitudinal direction in order to be able to be pushed into the examination opening of the gantry 3.
  • the illustration shows a gantry 3, each with a patient positioning device on each side of the examination opening, and it can be seen that the patient bed 9 is pushed into the bed guide 7 of the opposite patient positioning device when it is pushed into the gantry.
  • the bed guide 7 is mounted in the boom 11 via a swivel joint 19 so as to be rotatable about a horizontal axis.
  • the boom 11 in turn is mounted in or on the foot 5 via a swivel joint 17 which can be rotated about a horizontal axis.
  • the rotary Joint 17 can be integrated into foot 5, but it can also be attached as part of the patient positioning device only in the area of foot 5, but not as an integral part of it.
  • the patient positioning device can be designed as an independent structural unit separately from the CT device 1 and can be modularly attached to it.
  • the arm 11 In order to adjust the height of the bed guide 7, the arm 11 is rotated about its pivot joint 17. In order to maintain its horizontal orientation in the illustration, the bed guide 7 is also rotated about the corresponding swivel joint 19.
  • the orientation of the bed guide 7 is stabilized by a support arm 13.
  • the support arm 13 supports the couch guide in such a way that deflection due to the patient's weight is prevented.
  • the support arm 13 is mounted in the arm guide via a swivel joint 21 which can be rotated about a horizontal axis and in the bed guide 7 via a swivel joint which can also be rotated about a horizontal axis.
  • the length of the support arm 13 is automatically adjustable. The length can be adjusted mechanically on the one hand via a gear or lever system which is driven by a rotary movement of the boom 11.
  • the length adjustment can take place hydraulically and can be matched to the rotary movement of the boom 11 by means of a characteristic curve, according to which the hydraulic drive is controlled.
  • the rotary movement of the boom 11 can either be mechanical, e.g. driven by a motor-driven worm drive and a gearwheel on the boom side, or by a hydraulic system.
  • the patient positioning device can be designed such that the bed guide 7 automatically always maintains a horizontal orientation, or in such a way that the orientation of the bed guide 7 can be adjusted by medical operating personnel.
  • the height is adjusted by rotating the boom 11, an orientation once taken up is automatically maintained by the mechanics or hydraulics.
  • the gantry 3 has a patient positioning device only on one side.
  • FIG. 2 shows the same CT device 1 with a patient positioning device as in the previous figure using the same reference numerals in a side view.
  • the embodiment shown has a patient positioning device on each side of the gantry 3, a patient couch 9 being inserted into only one of the two couch guides.
  • the patient support device which is largely invisible in the previous figure, also has an extension arm 11 ⁇ with swivel joints 17 ⁇ , 19 ⁇ that can be rotated about horizontal axes and a support arm 13 ⁇ with swivel joints 21, 23 ⁇ that can also be rotated about horizontal axes. having.
  • a height adjustment device 15 is used to adjust the height of the bed guide 7 by rotating the boom 11. For this purpose, it drives the rotary movement of the boom 11 either mechanically or hydraulically in a motor-driven manner. Individual components of the height adjustment device 15 are not shown in the figure. It can be seen in the illustration that each of the two patient positioning devices has its own height adjustment device 15, 15 which the mutually independent height adjustment of the two bed guides 7, 7 ⁇ enables.
  • FIG. 3 shows a CT device 1 with a patient positioning device on each side of the gantry 3 in another embodiment in a side view.
  • the patient positioning devices have the same features as the patient positioning devices shown in the previous figures, and in this respect the same reference numerals are used.
  • the illustrated embodiment shows a parallelogram swing arm in connection with the arms 11, 11 which ensures the horizontal orientation of the bed guides 7, 7. While the arms 11, 11 ⁇ are mounted as described above and are driven by height adjustment devices 15, 15 ⁇ , the support arms 13, 13 are now arranged parallel to the arms 11, 11 ⁇ . While one bearing point of the support arms 13, 13 ⁇ is also arranged in the bed guides 7, 7, the other bearing point is arranged in or on the foot 5 in order to achieve a parallelogram arrangement.
  • the parallelogram arrangement represents a particularly simple, mechanically feasible possibility of maintaining the orientation of the bed guides 7, 7 ⁇ independently of movements of the arms 11, 11 ⁇ , since it does not require any additional hydraulic control or mechanical translation.
  • the support arms 13, 13 ⁇ can be designed to be longitudinally adjustable in this embodiment. The longitudinal adjustment can be done mechanically or hydraulically.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention concerne un dispositif de positionnement de patient pour un appareil de tomodensitométrie (1) comprenant un support mobile (3) monté sur un pied (5). Le dispositif de positionnement de patient selon l'invention comprend un guide de table d'examen (7, 7') pour une table d'examen de patient (9), ainsi qu'un bras (11, 11') qui est logé sur le pied (5) au moyen d'une articulation rotative (17, 17') pouvant tourner autour d'un axe horizontal. Le guide de table d'examen (7, 7') est monté sur le bras (11, 11') au moyen d'une articulation rotative (19, 19') pouvant tourner autour d'un axe horizontal et la hauteur du guide de table d'examen (7, 7') est réglable.
PCT/EP2004/052688 2003-10-31 2004-10-28 Dispositif de positionnement de patient pour un tomodensitometre WO2005041777A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04791324A EP1677678A1 (fr) 2003-10-31 2004-10-28 Dispositif de positionnement de patient pour un tomodensitometre
US10/577,845 US20070094797A1 (en) 2003-10-31 2004-10-28 Patient positioning device for a computer tomograph
JP2006537300A JP2007509672A (ja) 2003-10-31 2004-10-28 コンピュータ断層撮影装置用患者支持装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10350900.3 2003-10-31
DE10350900A DE10350900A1 (de) 2003-10-31 2003-10-31 Patientenlagerungsvorrichtung für einen Computer-Tomographen

Publications (1)

Publication Number Publication Date
WO2005041777A1 true WO2005041777A1 (fr) 2005-05-12

Family

ID=34529977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/052688 WO2005041777A1 (fr) 2003-10-31 2004-10-28 Dispositif de positionnement de patient pour un tomodensitometre

Country Status (6)

Country Link
US (1) US20070094797A1 (fr)
EP (1) EP1677678A1 (fr)
JP (1) JP2007509672A (fr)
CN (1) CN1874728A (fr)
DE (1) DE10350900A1 (fr)
WO (1) WO2005041777A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8191190B2 (en) * 2009-05-15 2012-06-05 Koninklijke Philips Electronics N.V. Deflection compensating mechanism for patient imaging table
FI123379B (fi) * 2010-04-29 2013-03-15 Planmed Oy Lääketieteellinen tietokonetomografialaitteisto
JP6049243B2 (ja) * 2011-08-24 2016-12-21 東芝メディカルシステムズ株式会社 医用画像診断装置
NL2021421B1 (en) * 2018-08-03 2020-02-12 Itrec Bv Proton Therapy Gantry

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE727207C (de) * 1939-12-19 1942-10-29 Odelga Aerztlich Tech Ind Ag J Operationstisch
JPS6113940A (ja) * 1984-06-28 1986-01-22 株式会社島津製作所 断層映像装置
GB2286887A (en) * 1994-02-16 1995-08-30 Oxford Magnet Tech MRI patient lift
DE10108549A1 (de) 2001-02-22 2002-03-14 Siemens Ag Verstellbare Patientenliege für eine Computertomografieanlage
US20020112288A1 (en) * 2001-02-22 2002-08-22 Matthias Seufert Imaging medical examination apparatus having a bearing mechanism
US6637056B1 (en) * 2001-06-01 2003-10-28 Analogic Corporation Lifting apparatus and method for patient table

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126142A (ja) * 1983-12-09 1985-07-05 横河メディカルシステム株式会社 テ−ブル機構
US5657498A (en) * 1995-11-20 1997-08-19 General Electric Company Methods and apparatus for acquiring table elevation information
JP3859071B2 (ja) * 2002-11-25 2006-12-20 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 平行リンク型テーブルおよび断層画像撮影装置
US7077569B1 (en) * 2002-12-10 2006-07-18 Analogic Corporation Apparatus and method for supporting pallet extending from patient table

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE727207C (de) * 1939-12-19 1942-10-29 Odelga Aerztlich Tech Ind Ag J Operationstisch
JPS6113940A (ja) * 1984-06-28 1986-01-22 株式会社島津製作所 断層映像装置
GB2286887A (en) * 1994-02-16 1995-08-30 Oxford Magnet Tech MRI patient lift
DE10108549A1 (de) 2001-02-22 2002-03-14 Siemens Ag Verstellbare Patientenliege für eine Computertomografieanlage
US20020112288A1 (en) * 2001-02-22 2002-08-22 Matthias Seufert Imaging medical examination apparatus having a bearing mechanism
US6637056B1 (en) * 2001-06-01 2003-10-28 Analogic Corporation Lifting apparatus and method for patient table

Also Published As

Publication number Publication date
CN1874728A (zh) 2006-12-06
EP1677678A1 (fr) 2006-07-12
DE10350900A1 (de) 2005-06-09
US20070094797A1 (en) 2007-05-03
JP2007509672A (ja) 2007-04-19

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