WO2004082481A1 - Systeme de tomographie par ordinateur a rayons x - Google Patents

Systeme de tomographie par ordinateur a rayons x Download PDF

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Publication number
WO2004082481A1
WO2004082481A1 PCT/JP2003/016573 JP0316573W WO2004082481A1 WO 2004082481 A1 WO2004082481 A1 WO 2004082481A1 JP 0316573 W JP0316573 W JP 0316573W WO 2004082481 A1 WO2004082481 A1 WO 2004082481A1
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WO
WIPO (PCT)
Prior art keywords
ray
subject
chair
image
height
Prior art date
Application number
PCT/JP2003/016573
Other languages
English (en)
Japanese (ja)
Inventor
Shigehisa Hagura
Iwao Miyano
Kunihiko Seo
Yoshiaki Amano
Original Assignee
Hitachi Medical Corporation
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 Hitachi Medical Corporation filed Critical Hitachi Medical Corporation
Publication of WO2004082481A1 publication Critical patent/WO2004082481A1/fr

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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
    • A61B6/50—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
    • A61B6/51—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 dentistry

Definitions

  • the present invention relates to an X-ray CT apparatus which rotates an X-ray beam onto a subject as an examinee, processes a projected image thereof, and photographs a tomographic image or the like.
  • the present invention relates to an X-ray CT apparatus suitable for use in image capturing for dental care, which can irradiate a ray cone beam and obtain an arbitrary CT slice image and a panoramic image of the part.
  • a turning arm equipped with an X-ray generator and a two-dimensional X-ray detector opposed to each other across a subject is supported by, for example, a front-back, left-right moving unit and a rotating unit. Movement controlled in a complex trajectory that approximates the shape of the dental arch? ).
  • a technique described in Patent Document 1 or the like is known.
  • an X-ray imaging apparatus having a CT function for obtaining a cross-sectional image of a tooth other than a panoramic imaging apparatus is known, for example, as described in Patent Document 2 and the like. Also perform X-ray CT imaging A panoramic X-ray imaging apparatus capable of performing such operations is known from, for example, Patent Document 3 and the like.
  • This conventional device reduces the exposure of the subject by turning and irradiating the X-ray cone beam not on the entire jaw including the dental arch but on the local area around the teeth and the temporomandibular joint, etc. It can also provide high-resolution CT tomographic images and three-dimensional stereoscopic images.
  • Fig. 8 is a diagram showing a basic structure example of a sitting-type X-ray CT apparatus according to the prior art.
  • the X-ray CT apparatus according to the prior art will be described with reference to Fig. 8.
  • reference numeral 800 denotes a fixed base
  • reference numeral 800 denotes a rotating unit
  • reference numeral 800 denotes an X-ray generator
  • reference numeral 800a denotes an X-ray source
  • reference numeral 800b denotes an X-ray cone beam
  • reference numeral 800 denotes a X-ray cone beam.
  • 4 is an X-ray detector
  • 805 is a rotation axis
  • 807 is a subject
  • 808 is a chair
  • 809 is a head support
  • 810 is a control device
  • 811 is image processing.
  • the device 812 is an image display device.
  • the X-ray CT apparatus has a rotating unit 8002 suspended above a fixed frame 8001 above a subject 807 sitting in a chair 808, and a rotating unit.
  • the X-ray generator 803 and the X-ray detector 804 held at 802 are rotated around the subject 807 along the rotation axis 805 by the controller 810 It is configured as follows.
  • the head of the subject 807 is fixed to the chair 808 by the headrest 809.
  • the radiation from the X-ray source 803 a of the X-ray generator 803 The X-ray cone beam 803 b passes through the imaging region of the subject 80 ′ 7 and is detected as image data by the X-ray detector 804.
  • Image data collected from the two-dimensional X-ray detection device 804 is sent to the image processing device 811.
  • the image processing device 811 performs arithmetic processing on the received image data, reconstructs a two-dimensional tomographic image, a CT image or a three-dimensional stereoscopic image, and displays it on the image display device 812.
  • Patent Document 1 JP-A-06-78919
  • Patent Document 2 Japanese Patent Application Laid-Open No. 09-221218
  • Patent Document 3 JP-A-11-3188888
  • Patent Document 4 Japanese Patent Application Laid-Open No. 2000-1 3902 Disclosure of the Invention
  • the height of the device is inevitably higher than the height of the subject 807, and in each case, the height of the device exceeds 2 meters.
  • Dental X-ray equipment is often as small and light as possible because the space for installing the equipment and the space for carrying the equipment are often limited compared to general diagnostic X-ray equipment. desirable.
  • the height of the device according to the prior art is to be reduced, the operator who sets and checks the position of the subject around the head of the subject 807 or around the subject 807 can be used. There is a problem that the distance between the head of the subject and the device in the height direction is reduced, and the risk of the subject 807 or the head of the operator colliding with the device is increased.
  • the rotating part of the device can be retracted in the height direction to avoid the risk of the head colliding with the device as described above.
  • the sitting-type device as shown also increases the risk of collision between the head and the device during the standing-up operation when the subject gets on and off the chair of the device.
  • the sitting type device measures the device according to the patient's height. Although it is necessary to change the height of the fixed part or the subject, when adjusting the height of the device or the patient, for example, the head of the subject may collide with the device due to erroneous operation or the like.
  • imaging may be performed during surgery on the temporomandibular joint and the like.
  • radiography is called intraoperative radiology (IVR: Interventional Radiology).
  • IVR Interventional Radiology
  • the device according to the prior art is a closed space at the top, bottom, front and rear, or right and left near the subject's head, so that the subject may experience a feeling of oppression or blockage with the device. Is of great psychological impact.
  • the device when viewed from the viewpoint of the installation space of the device, in order to install the rotating part above the subject's head, unless the device is fixed to the ceiling, it is generally installed on the floor where the device is installed.
  • a column such as the fixed frame 81 in Fig. 8) that supports the rotating part.
  • An object of the present invention is to provide an X-ray CT device capable of performing the above.
  • the object is to provide an X-ray CT apparatus that rotationally irradiates a subject with an X-ray beam and captures a projected image of the subject, wherein an X-ray generating unit that generates an X-ray beam arranged to sandwich the subject is provided.
  • X-ray detecting means for detecting an image formed by X-rays transmitted through a subject; and a rotating shaft for rotating the X-ray generating means and the X-ray detecting means with the subject interposed therebetween, wherein the rotating shaft is a floor of the apparatus. This is achieved by being provided on the side.
  • the object is that a chair on which the subject sits is provided between the X-ray generation unit and the X-ray detection unit, and a seat surface of the chair is configured to be able to move up and down.
  • a backrest formed in a semi-cylindrical shape is mounted on the backrest, and a control means for the X-ray generation means and the X-ray detection means is accommodated inside the backrest.
  • the object is to provide a connecting portion on the floor side of the apparatus, the connecting portion connecting columns supporting each of the X-ray generating means and the X-ray detecting means, and comprising a step symmetrically from the center of the connecting portion. This is achieved by the fact that the entire device is placed on a circular mat equipped with a safety device.
  • FIG. 1 is a perspective view seen from the front side of an X-ray X-ray apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view seen from the rear side of the X-ray C-ray apparatus according to the embodiment of the present invention.
  • FIG. 3 is a front view of the X-ray CT apparatus according to one embodiment of the present invention.
  • FIG. 4 is a side view showing a state in which a subject rides on an X-ray C-ray apparatus according to an embodiment of the present invention.
  • FIG. 5 is a top view of the X-ray CT apparatus according to the embodiment of the present invention in a state where the subject is on the X-ray CT apparatus.
  • FIG. 6 is a diagram for explaining a rotation drive mechanism of the X-ray generation device and the X-ray imaging device, and a lifting and lowering drive mechanism of a chair seat.
  • FIG. 7 is a three-sided view showing the shape of the power supply box.
  • FIG. 8 is a diagram showing an example of the basic structure of a conventional sitting-type X-ray CT apparatus. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a perspective view of the X-ray CT apparatus according to one embodiment of the present invention as viewed from the front side
  • FIG. 2 is a perspective view of the X-ray CT apparatus according to one embodiment of the present invention as viewed from the back side
  • 3 is a front view of the X-ray CT apparatus according to one embodiment of the present invention
  • FIG. 4 is a side view of the X-ray CT apparatus according to one embodiment of the present invention in a state in which a subject is riding
  • FIG. FIG. 1 is a top view of a state in which a subject rides on an X-ray CT apparatus according to one embodiment.
  • 101 is a floor surface
  • 102 is a mat
  • 103 is a step
  • 104 is an X-ray generator
  • 105 is an X-ray imaging device constituting an X-ray detector
  • 1 06 is an X-ray generating device support
  • 107 is an X-ray imaging device support
  • 108 is a support connecting part
  • 109 is a footrest
  • 110 is a chair pedestal
  • 111 is a chair pedestal.
  • 1 18 is a power bots
  • 1 19 is a handle.
  • the X-ray CT apparatus includes a circular mat 102 provided on the floor 101, and a column 106 for the X-ray generator.
  • the X-ray imaging apparatus 105 supported by 107 has a structure in which the X-ray imaging apparatus 105 is arranged so as to face the subject, which is the subject, across the head.
  • the strut 106 for the X-ray generator and the strut 107 for the X-ray imaging device are connected by a strut connecting portion 108 at the lower part thereof, so that they are almost at the center of the strut connecting portion 108. That is, the mat 102 is rotatably mounted on the mat 102 around the center of the mat 102 as a fulcrum.
  • a chair on which the subject sits at the time of imaging, a rotation of the X-ray generator 104 and the X-ray imaging device 105 that rotate together with the support connection 108 are provided on the support connection 108. It is installed so that it does not rotate with respect to it and can be moved up and down.
  • This chair has a chair seat surface 113 with armrests 112 on which a subject sits, a chair seat 110, and a chair back connected to the rear surface of the seat 110.
  • the front side of the chair pedestal portion 110 is configured to have a member that is one step lower and protrudes in a circular shape forward. This member is provided with an arcuate plate-shaped foot guard 114 that is movable along the circular circumference.
  • a footrest 109 that slides back and forth so that it can be stored in the chair pedestal portion 110. Since the backrest for the chair 1 1 1 1 has an outer periphery on the back side formed in an arc shape along the rotation trajectory of the column 106 for the X-ray generator and the column 107 for the X-ray imaging device, When a doctor or the like approaches the apparatus during imaging of the subject, it is possible to visually recognize the rotation range of the X-ray generator support 106 and the X-ray imaging apparatus support 107. it can. As a result, an accident can be prevented beforehand, and a safe X-ray CT apparatus can be provided for doctors and the like.
  • a column for the head and jaw fixation device 117 is erected on the chair pedestal 110, and the upper part of the column is used to hold the subject's head from moving during X-ray photography. Can be moved vertically and fixed A head fixation device 115 and a jaw fixation device 116 are attached.
  • the chair seat surface 113 is provided so as to be able to slide forward and backward, and a handle 119 for lifting the seat surface is provided below the chair seat surface portion 113. By manually turning the handle 119, the chair seat 113 can be moved up and down.
  • the height can be adjusted.
  • the height can be adjusted electrically.
  • a step 103 is connected before and after the column connecting portion 108.
  • the step is provided symmetrically from the center of the column connecting portion 108.
  • a power supply box 118 formed in a substantially triangular prism shape is installed outside the circular mat 102.
  • Step 103 is used as a stair when the subject sits on the chair seat surface 113 of the X-ray CT apparatus. 2 and the safety device in the mat 102 can be activated.
  • the chair backrest 111 constituting the chair is formed in a semi-cylindrical shape, and includes therein an X-ray generator 104 and an X-ray imaging device.
  • a control device for 105, an image processing device (not shown), a communication unit for performing communication with the image display device, and the like are housed.
  • the power supply box 118 is provided separately, but the power supply unit is provided inside the chair backrest 111 in the interior space of the chair backrest 111. Is also good.
  • the floor surface 101 is shown as a square, but this is the same as the X-ray CT apparatus according to the embodiment of the present invention. It indicates the minimum installation area and is approximately 180 mm x 180 mm.
  • the power supply box 1 18 described above is also arranged. That is, the X-ray CT apparatus according to the embodiment of the present invention can be stored in a small room having a size of 180 mm ⁇ 180 mm.
  • the illustrated X-ray CT apparatus is installed on a circular mat 102 having a diameter of 164 mm provided on the floor 101, and the circular mat 102 Since it is possible to visually clarify that the inside of the mat 102 is a rotation region between the X-ray generator 104 and the X-ray imaging device 105, the subject ⁇ doctor or the like can be visually recognized. It can alert visually and prevent accidents.
  • the above-mentioned MAT 102 is provided with a safety device having a pressure-sensitive sensor and the like inside. When a subject, a doctor, etc.
  • the X-ray generator 104 and the X-ray imaging device 105 are positioned on both sides of the chair on which the subject is seated, as shown in the front view in FIG.
  • the head fixing device 1 15 and the jaw fixing device 1 16 are moved from the front position shown in Fig. 3 to the side as shown in Fig. 2, and the foot guard 1 1 4 is evacuated to the side.
  • the subject sits on the seat surface 113 of the chair from the front side of the device.
  • the subject should move from the floor 101 to the mat 102, step 103, the lower part of the chair base 110, Step forward to the platform 109 and sit on the chair seat 1 1 3.
  • the safety device is built into the mat 102, and the step 103 is to contact the mat 102 when the person puts his / her foot on and to activate the safety device.
  • the subject can be seated safely.
  • the doctor, technician, etc. adjusts the front-back position of the chair seat surface 113, adjusts the height of the chair seat surface 113 using the handle 119, and Move the footrest 109 back and forth so that the subject's feet can easily rest on the footrest 109.
  • a doctor, a technician, or the like moves the head fixing device 1 15 and the jaw fixing device 1 16 to the front, adjusts the height, and fixes the subject's head and jaw.
  • the position of the subject's head should be such that the imaging site, such as a tooth, is irradiated with X-rays from the X-ray generator 104 and reaches the X-ray imaging device 105.
  • the height is determined by repeating the adjustment of the height of the chair seat surface portion 113 and the adjustment of the height of the head fixing device 115 and the jaw fixing device 116 described above. After that, the doctor, technician, etc., position the foot guard 114 in front of the camera and finish preparations for imaging.
  • the reason for keeping the feet guard 1 1 4 in front is that the X-ray generator column 10 6 that rotates during imaging should the subject inadvertently throw his feet forward. This is in order to avoid the danger of striking the foot on the support 107 for the X-ray imaging apparatus.
  • the outer circumference of the foot guard 114 is formed in an arc shape along the rotation trajectory of the support 106 for the X-ray generator and the support 107 for the X-ray imaging device, the subject is placed on the chair.
  • the rotation range of each of the struts 1'06 and 107 can be visually clarified when sitting down, and a sense of security can be given to the subject.
  • the subject When the subject gets off the X-ray CT apparatus, the subject performs the opposite operation, but also in this case, after the subject puts his foot on step 103, , Mistakenly support for X-ray generator 106 and X-ray imaging device Since the column 107 does not rotate, it is possible to safely descend.
  • the step 103 is provided before and after the strut connecting portion 108, which allows the X-ray generator 104 and the X-ray imaging device 105 to be connected to the subject.
  • the subject can get on and off the device regardless of which side of the subject it is located on, and the X-ray generator 104 and the X-ray imaging device 105 are positioned before and after the subject.
  • the two steps 103 are located on both sides of the subject, and the doctor or the like rides the step 103 at this position and sends the subject from the side of the subject to the subject. You can access and provide treatment.
  • the step 103 is slightly larger than the width of the chair.
  • This step 103 is a step when the subject sits on the chair, and guides from which direction the subject sits on the chair outside the apparatus.
  • a space is formed on both sides of step 103, which makes the exposed surface of the mat 102, which incorporates a safety device with a small difference in height from the floor 101, wider. Therefore, when a doctor or the like needs to stop the device urgently, the device can be stopped without approaching the rotating device too much.
  • FIG. 4 shows the side view of the subject sitting on the chair seat surface of the X-ray CT apparatus with the head adjusted and the position adjusted
  • Fig. 5 shows the top view.
  • FIG. 4 shows a state in which the X-ray generator 104 and the X-ray imaging apparatus 105 are located on the sides of the subject, and the X-ray imaging apparatus 105 is removed. ing. In such a state, the X-ray generating device support 106 and the X-ray imaging device support 107 are rotated together with the support connecting portion 108, and the X-ray from the X-ray generating device 104 is rotated.
  • the X-rays are radiated onto the imaging region of the subject, and the transmitted X-rays reach the X-ray imaging device 105, so that an image of a tooth or the like can be obtained from the X-ray imaging device 105.
  • the X-ray generator 104 and the X-ray imager 105 at the time of imaging do not rotate in a complete circle around one axis, but instead take a tomographic image or panoramic image. Depending on whether the image is to be taken or not, it is controlled and rotated so that the imaged part can always be taken most clearly while changing the rotation center. Since the control of the rotation is not the subject of the present invention, the description is omitted here.
  • FIG. 6 is a diagram for explaining a rotation drive mechanism of the X-ray generator and the X-ray imaging apparatus, and a lifting drive mechanism of the chair seat.
  • reference numeral 120 denotes a rotary drive mechanism
  • reference numeral 121 denotes an elevating drive mechanism
  • reference numeral 122 denotes a rotating shaft
  • reference numeral 123 denotes a column for supporting a chair seat surface
  • reference numeral 124 denotes a base.
  • the reference numerals are the same as those in FIGS.
  • FIG. 6 is a cross-sectional view of the X-ray generator 104 and the X-ray imaging device 105 viewed from the side with the X-ray generator 104 and the X-ray imaging device 105 positioned before and after the subject's head. Further, an example is shown in which the chair seat surface portion 113 is moved up and down electrically.
  • an X-ray generator 104 and an X-ray imaging device 105 supported on the respective columns 106 and 107, and a column connecting portion 108 connecting these members are provided.
  • the rotating shaft 1 2 2 is formed in a hollow, somewhat thick pipe shape, and a chair seat surface support column 1 2 3 passes through the inside of the rotating shaft 1 2 2 and a base 1 2 4 It is supported by.
  • the rotation drive mechanism 120 for the rotating shaft 122 is composed of an X-ray generator support 106 supporting the X-ray generator 104 and the X-ray imaging device 105, respectively, and an X-ray imaging device. It is incorporated in a column connecting portion 108 connecting the device column 107.
  • An elevating drive mechanism 121 for raising and lowering the chair seat surface 113 is incorporated in the chair pedestal 110.
  • These drive mechanisms 120 and 121 can be constituted by known mechanical mechanisms including a drive source such as a motor, and are not the gist of the present invention. The detailed description in is omitted.
  • FIG. 6 shows the dimensions of each part of the X-ray CT apparatus according to the embodiment of the present invention.
  • the center height of the X-ray generator 104 and the X-ray imaging device 105 is 1540 mm from the floor, and the height from the floor to the top of the X-ray generator 104 is The height from the floor to 1840 mm and the upper surface of the mat 102 is 50 mm from the floor.
  • the distance between the back surfaces of the X-ray generator 104 and the X-ray imaging device 105 is 150 Omm, and the center of the distance is the position of the imaging site.
  • the distance from the front of the X-ray generator 104 to the position of the imaging site is 320 mm, and the distance from the front of the X-ray imaging device 105 to the position of the imaging site is 30 O mm.
  • FIG. 7 is a three-side view showing the shape of the power supply box.
  • the power supply box 118 is formed in a triangular prism shape having a substantially triangular cross-sectional shape obtained by cutting off an acute angle portion of a right-angled isosceles triangle.
  • the cross-sectional dimension is 500 mm in length of an isosceles part, and 11 Omm in length of a side formed by cutting off an acute angle part. And its height is 1400 mm.
  • the power supply box 1 18 of this shape is The power supply box 118 is arranged so that the long side of the power box 118 faces the arc-shaped edge of the mat 102.
  • the diameter of the mat 102 is 1640 mm, such an arrangement allows the X-ray CT apparatus including the power supply box 118 to have a size of 180 mm x 18 mm. It can be as large as 00 mm. .
  • the rotation axis for rotating the X-ray generator 104 and the X-ray imaging apparatus 105 across the subject's head is located on the floor side of the apparatus.
  • structural parts such as means for holding the X-ray generator and X-ray imaging device and means for rotating and driving them are installed above the subject, as in the case of the conventional technology. Can be eliminated.
  • a sufficient space can be secured above the subject's head, and the X-ray generation device 104 and the X-ray imaging device 105 can be connected to each other.
  • safety can be improved, and the height and installation space of the device can be significantly reduced.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Dentistry (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (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 concernant un système de tomographie par ordinateur (CT) à rayons X irradiant rotatif un objet au moyen d'un faisceau de rayons X et photographiant son image de projection, qui comprend un générateur de rayons X disposé de manière à retenir l'objet et à générer un faisceau de rayons X, un détecteur de rayons X qui détecte une image au moyen des rayons X émis à travers l'objet, et un arbre tournant conçu pour faire tourner le générateur de rayons X et le détecteur de rayons X tout en retenant l'objet, ledit arbre est situé sur le côté base du système CT à rayons X. Un tel système convient pour usage dentaire, dans lequel la sécurité est renforcée et la hauteur réduite, l'espace d'installation obtenu étant sensiblement plus grand.
PCT/JP2003/016573 2003-03-17 2003-12-24 Systeme de tomographie par ordinateur a rayons x WO2004082481A1 (fr)

Applications Claiming Priority (2)

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JP2003072078A JP4084217B2 (ja) 2003-03-17 2003-03-17 Ｘ線ｃｔ装置
JP2003-72078 2003-03-17

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US9456793B2 (en) 2010-02-23 2016-10-04 Planmeca Oy Patient support for an odontological x-ray apparatus
WO2018167378A1 (fr) * 2017-03-17 2018-09-20 Planmeca Oy Appareil d'imagerie par rayons x et agencement de support de patient
WO2019206526A1 (fr) * 2018-04-27 2019-10-31 Palodex Group Oy Appareil de positionnement de patient avec dossier réglable et verrouillable
CN111772584A (zh) * 2020-07-08 2020-10-16 莆田学院附属医院（莆田市第二医院） 一种智能脊柱数字化手术装置

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JP4679157B2 (ja) * 2005-01-07 2011-04-27 株式会社日立メディコ Ｘ線ｃｔ装置
KR100907821B1 (ko) * 2007-05-29 2009-07-14 차영진 치과 의료진단용 복합영상 촬영장치
CN102551772B (zh) * 2012-03-16 2014-03-05 中国科学院深圳先进技术研究院 射线成像装置
JP6207823B2 (ja) * 2012-09-26 2017-10-04 東芝メディカルシステムズ株式会社 Ｘ線撮影装置
KR101838349B1 (ko) 2014-04-17 2018-03-13 쎄플라 쏘씨에타 쿠퍼라티바 구강외 치과 방사선영상을 획득하기 위한 두개 고정기

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US9456793B2 (en) 2010-02-23 2016-10-04 Planmeca Oy Patient support for an odontological x-ray apparatus
WO2018167378A1 (fr) * 2017-03-17 2018-09-20 Planmeca Oy Appareil d'imagerie par rayons x et agencement de support de patient
KR20190126868A (ko) * 2017-03-17 2019-11-12 플란메카 오이 X-레이 촬상 장치 및 환자 지지 배열
US11350890B2 (en) 2017-03-17 2022-06-07 Planmeca Oy X-ray imaging apparatus and patient support arrangement
KR102508670B1 (ko) 2017-03-17 2023-03-13 플란메카 오이 X-레이 촬상 장치 및 환자 지지 배열
WO2019206526A1 (fr) * 2018-04-27 2019-10-31 Palodex Group Oy Appareil de positionnement de patient avec dossier réglable et verrouillable
US10835441B2 (en) 2018-04-27 2020-11-17 Palodex Group Oy Patient positioning apparatus with adjustable and lockable back rest
CN111772584A (zh) * 2020-07-08 2020-10-16 莆田学院附属医院（莆田市第二医院） 一种智能脊柱数字化手术装置
CN111772584B (zh) * 2020-07-08 2022-08-09 莆田学院附属医院（莆田市第二医院） 一种智能脊柱数字化手术装置

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