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WO2007004874A2 - Systeme de production d'une photo a rayons x - Google Patents

Systeme de production d'une photo a rayons x Download PDF

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Publication number
WO2007004874A2
WO2007004874A2 PCT/NL2006/050134 NL2006050134W WO2007004874A2 WO 2007004874 A2 WO2007004874 A2 WO 2007004874A2 NL 2006050134 W NL2006050134 W NL 2006050134W WO 2007004874 A2 WO2007004874 A2 WO 2007004874A2
Authority
WO
WIPO (PCT)
Prior art keywords
receiver
emitter
carrying device
attached
ray
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
Application number
PCT/NL2006/050134
Other languages
English (en)
Other versions
WO2007004874A3 (fr
Inventor
Wijnand Petrus Tromp
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2007004874A2 publication Critical patent/WO2007004874A2/fr
Publication of WO2007004874A3 publication Critical patent/WO2007004874A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/587—Alignment of source unit to detector unit
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4464—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit or the detector unit being mounted to ceiling
    • 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
    • A61B6/46—Arrangements for interfacing with the operator or the patient
    • A61B6/461—Displaying means of special interest
    • A61B6/462—Displaying means of special interest characterised by constructional features of the display
    • 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
    • A61B6/501—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 diagnosis of the head, e.g. neuroimaging or craniography

Definitions

  • the invention relates to a system for making an X-ray photo, comprising an emitter carrying device, which can be attached to a fixed point in a room with a first end thereof, and an X-ray emitter, which is attached to the second end of the emitter carrying device, said emitter carrying device comprising a number of arms capable of pivoting, sliding, telescoping and/or rotating movement relative to each other, such that the emitter can be manoeuvred into a desired position, a receiver carrying device, which can be attached to a fixed point in a room with a first end thereof, and an X-ray receiver, which is attached to the second end of the receiver carrying device, said receiver carrying device comprising a number of arms capable of pivoting, sliding, telescoping and/or rotating movement relative to each other, such that the receiver can be manoeuvred into a desired position, said system being provided with sensors by means of which the positions of the emitter and the receiver can be determined, said system furthermore being provided with an arithmetic unit, which is connected to the
  • the patient can simply be moved or move himself or herself so as to make it possible to make an X-ray of the right part of the patient's body.
  • this is frequently impossible or undesirable, so that it must be possible within certain bounds to manoeuver the emitter and the receiver into any desired position without burdening the patient unnecessarily.
  • An automatically controlled adjustment as takes place in the known system is not desirable in that case, because this may lead to highly diverse paths of movement in a system that is movable to such a degree and possibly result in injury to the patient and the operating staff or damage to the equipment that is present at that location.
  • several positions in which a technically good recording can be made are possible in a system that comprises many degrees of freedom.
  • the object of the invention is to provide a user-friendly system by which an optimum X-ray photo can be made in a quick and efficient manner whilst burdening the patient as little as possible.
  • the arithmetic unit is arranged to calculate correct receiver positions in dependence on the emitter position as determined and/or calculate correct emitter positions in dependence on the receiver position as determined, the system furthermore being provided with signalling means which are connected to the arithmetic unit and which are arranged to indicate when the emitter and/or the receiver is (are) in one of the correct positions as calculated.
  • signalling means which are connected to the arithmetic unit and which are arranged to indicate when the emitter and/or the receiver is (are) in one of the correct positions as calculated.
  • the indicating means are furthermore preferably arranged to indicate the direction in which the emitter and/or the receiver is (are) to be moved in order to reach one of the correct positions as calculated.
  • the indicating means preferably comprise at least a display.
  • the indicating means preferably comprise arrows that indicate the direction of a desired translation or rotation.
  • the size, the colour or the intensity of the arrows forms an indication of the magnitude of the required translation or rotation in that case.
  • the display or displays is (are) preferably present on the emitter and/or on the receiver, because this is where the user of the system is located while adjusting the system.
  • the indicating means on the emitter or the indicating means on the receiver provide instructions as regards the required translations and/or rotations of the emitter or the receiver on which the indicating means in question are present.
  • the system furthermore comprises a guide rail that can be fixed to the wall, the floor or the ceiling of the room, wherein the receiver is provided with means of attachment arranged to attach the receiver to the guide rail.
  • the object of the invention is furthermore to provide an X- ray recording system that operates with the highest possible degree of precision, so that an optimum technical quality of the X-ray photos can be realised. It is not very relevant in that connection whether positioning takes place manually or automatically. According to another possibility, positioning takes place manually for the greater part, with the last part of the movement (the fine adjustment) taking place automatically, i.e. by means of actuators driven by the arithmetic unit.
  • the invention also relates to a system for making an X-ray photo, comprising an emitter carrying device, which can be attached to a fixed point in a room with a first end thereof, and an X-ray emitter, which is attached to the second end of the emitter carrying device, said emitter carrying device comprising a number of arms capable of pivoting, sliding, telescoping and/or rotating movement relative to each other, such that the emitter can be manoeuvred into a desired position, a receiver carrying device, which can be attached to a fixed point in a room with a first end thereof, and an X-ray receiver, which is attached to the second end of the receiver carrying device, said receiver carrying device comprising a number of arms capable of pivoting, sliding, telescoping and/or rotating movement relative to each other, such that the receiver can be manoeuvred into a desired position, said system being provided with sensors by means of which the positions of the emitter and the receiver can be determined, said device furthermore being provided with an arithmetic unit, which is connected to
  • the arithmetic unit is capable of calculating the extent of the deflection at the end of the carrying device on the basis of the information from the sensors, which communicate the position of the various arms, and an arithmetic model in which the geometry and the weight of the various parts of the carrying device are incorporated.
  • this deflection calculation can be calibrated by carrying out one or more practical measurements.
  • the emitter and/or the receiver is (are) provided with an inclinometer for determining the deflection data of the emitter and/or the receiver.
  • the receiver carrying device is provided with a tilt compensation device at the end thereof, which tilt compensation device is connected to the arithmetic unit and which comprises actuators arranged to move a connecting part to which the receiver is connected, which connecting part comprises an at least virtual horizontal reference plane, said tilt compensation device being arranged to hold said at least virtual horizontal reference plane in a horizontal position in dependence on the deflection data.
  • a tilt compensation device is connected to the arithmetic unit and which comprises actuators arranged to move a connecting part to which the receiver is connected, which connecting part comprises an at least virtual horizontal reference plane, said tilt compensation device being arranged to hold said at least virtual horizontal reference plane in a horizontal position in dependence on the deflection data.
  • the invention furthermore relates to a system for making an X-ray photo, comprising a receiver carrying device, which can be attached to a fixed point in a room with a first end thereof, and an X-ray receiver, which is attached to the second end of the receiver carrying device, said receiver carrying device comprising a number of arms capable of pivoting, sliding, telescoping and/or rotating movement relative to each other, such that the receiver can be manoeuvred into a desired position, wherein the receiver carrying device is provided with an inclinometer at a point located near the receiver, wherein the receiver carrying device is provided with a tilt compensation device at the end thereof, which tilt compensation device is connected to the inclinometer and which comprises actuators arranged to move a connecting part to which the receiver is connected, which connecting part comprises an at least virtual horizontal reference plane, said tilt compensation device being arranged to hold said at least virtual horizontal reference plane in a horizontal position in dependence on the signals received from the inclinometer.
  • the object of the invention is furthermore to enable a greater degree of freedom of movement both of the system and of its users •
  • the manner in which the mutual alignment of the emitter and the receiver takes place is less relevant in that connection.
  • the invention furthermore relates to a system for making an X-ray photo, comprising a receiver carrying device, which can be attached to a fixed point in a room with a first end thereof, and an X-ray receiver, which is attached to the second end of the receiver carrying device, said receiver carrying device comprising a number of arms capable of pivoting, sliding, telescoping and/or rotating movement relative to each other, such that the receiver can be manoeuvred into a desired position, wherein a first arm is rotatably mounted in a vertical bearing at its upper end, wherein the upper end of said arm is disposed at least 190 cm above the floor surface in mounted condition and the lower end of the arm is disposed at least 170 cm above the floor surface in mounted condition, spaced from the vertical axis of the bearing, preferably by at least 50 cm, wherein the central portion of the first arm extends on or above the straight line through the two ends of the arm, and wherein a second arm is connected to the lower end of the first arm by means of a hinge,
  • the second arm is furthermore mounted in a vertical bearing on the lower end of the first arm, and the second arm preferably comprises two parallel sub-arms forming a parallelogram construction, such that a bearing that is mounted on the lower end of the second arm can be held in a substantially vertical position at all times.
  • the invention further relates to a system for making an X-ray photo, comprising an emitter carrying device, which can be attached to a fixed point in a room with a first end thereof, and an X-ray emitter, which is attached to the second end of the emitter carrying device, said emitter carrying device comprising a number of arms capable of pivoting, sliding, telescoping and/or rotating movement relative to each other, such that the emitter can be manoeuvred into a desired position, a receiver carrying device, which can be attached to a fixed point in a room with a first end thereof, and an X-ray receiver, which is attached to the second end of the receiver carrying device, said receiver carrying device comprising a number of arms capable of pivoting, sliding, telescoping and/or rotating movement relative to each other, such that the receiver can be manoeuvred into a desired position, said system being provided with sensors by means of which the positions of the emitter and the receiver can be determined, wherein the system furthermore comprises a guide rail that can be fixed to the wall,
  • the invention also relates to a receiver carrying device carrying an X-ray receiver as described above.
  • the invention relates to an arithmetic unit loaded with instructions for carrying out the calculations and receiving and transmitting signals as described above.
  • the invention also relates to a software programme, as well as to a computer-readable carrier with such a software programme, which programme comprises the instructions for carrying out the calculations and receiving and transmitting signals as described above.
  • the invention further relates to a method for making an X-ray photo, wherein an emitter carrying device is attached to a fixed point in a room with a first end thereof, and wherein an X-ray emitter is attached to the second end of the emitter carrying device, which emitter is manoeuvred into a desired position by the user, with a number of arms of the emitter carrying device pivoting, sliding, telescoping and/or rotating relative to each other, wherein a receiver carrying device is attached to a fixed point in a room with a first end thereof, and wherein an X-ray receiver is attached to the second end of the receiver carrying device, which receiver is manoeuvred into a desired position by the user, with a number of arms pivoting, sliding, telescoping and/or rotating relative to each other, wherein the positions of the emitter and the receiver are determined by an arithmetic unit, which is connected to sensors on the carrying device, wherein the arithmetic unit calculates correct positions of the receiver in dependence on the emitter position as determined
  • Figure 1 is a perspective view of a system for making an X- ray photo
  • Figures 2A, 2B, 2C show a few examples of indicating images on the display that is indicated by the arrow II in Figure 1;
  • Figures 3A and 3B show an X-ray receiver provided with a anti-scatter grid in plan view and in front view, respectively;
  • Figures 4A and 4B are a plan view and a front view, respectively, of an X-ray receiver provided with an alternative embodiment of a anti-scatter grid; and Figures 5A, 5B, 5C and 5D are plan views of an X-ray receiver with the alternative embodiment of a anti-scatter grid according to Figures 4A and 4B in various mounted positions thereof.
  • a system for making an X-ray photo comprises an X-ray emitter 1 and an X-ray receiver 2, which are both suspended from a ceiling 3 of a trauma treatment room in a hospital.
  • the emitter 1 is slidably mounted/ via an emitter carrying device 4, in a first rail 5 that is fixed to the ceiling, the receiver 2 is slidably mounted, via a receiver carrying device 6, to a second rail 7 that is fixed to the ceiling.
  • the X-ray receiver 2 is capable of electronically recording an X-ray image of an object that is present between the emitter and the receiver, such as a part of a patient's body to be examined, when the receiver is correctly aligned with the emitter 1.
  • the making of such X-ray recordings is a very well-known technique and will not be discussed in more detail herein. It should be noted, however, that generally the alignment of the receiver 2 and the emitter 1 is very critical in one direction of the receiver 2, whilst in many cases it is not critical in the direction perpendicular thereto.
  • the emitter carrying device 4 comprises a telescopic tube assembly 8, 9, the lower tube 9 of which is capable of rotation about its vertical axis as well.
  • the emitter 1 can be rotated about its horizontal axis.
  • the receiver carrying device 6 comprises a first bearing girder 10, which extends horizontally and which is attached to the rail 7 by means of a vertical bearing 11.
  • a second bearing girder 12 is attached to the bearing girder 10 by means of a second vertical bearing 13.
  • Said second bearing girder 12 consists of a quarter-circular arc, which extends substantially horizontally at its upper side and substantially vertical at its lower side. The dimensions of the components have been selected so that an adult will be able to stand upright under the horizontal bearing girder 10, with the lower side of the quarter-circular bearing girder 12 being positioned approximately at hip height .
  • a third bearing girder 14 is attached to the second bearing girder 12 by means of a third vertical bearing 15.
  • Said third bearing girder comprises a parallelogram hinge construction as known per se, which construction is made up of the two parallel sub-girders 14A, 14B, the third vertical bearing 15 and a fourth vertical bearing 16.
  • a tilt compensation device 17 is fixedly connected to the lower shaft of the fourth bearing.
  • Said device 17 comprises a set of actuators that function to hold the suspension of the outgoing shaft 18 in a horizontal position, as will be described in more detail below.
  • Mounted to the outgoing shaft 18 is the plate-shaped receiver 2, which can be rotated about its longitudinal axis.
  • a very flexible system is obtained in the above-described manner, by which the receiver can be manoeuvred into any desired position, within certain spatial bounds, in a simple manner and which enables a great freedom of movement .
  • the receiver is provided with a display 19. On said display, indications are given regarding the direction in which the receiver is to be moved in order to obtain a suitable recording position with respect to the emitter. These indications will be discussed below with reference to Figures 2A, 2B and 2C.
  • the display 19 is connected to a computer device (not shown) , which is in turn connected to a multitude of sensors 20 provided on all the moving points of the device.
  • Said sensors which are only shown schematically, are capable of measuring the rotation of the various bearings 11, 13, 15, 16 and the shaft 18, the vertical hinged position of the arm 14 as well as the movement of the suspension in the rails and the telescoping and rotating movements of the telescopic assembly 8, 9.
  • the computer device can determine the position and the orientation of the emitter and the receiver in the room.
  • the deflection of the various arms of (in this case) the receiver carrying device 6, which depends on the dimensions, the material properties and the position of the various components, have been taken into account in said arithmetic model.
  • the rotation and the movement caused by said deflection is added to the calculated position and orientation, therefore.
  • the computer will calculate the rotation caused by deflections in two directions of the horizontal plane at the location of the tilt compensation device 17 and drive the actuators of said device on the basis thereof in such a manner that the position of the suspension of the outgoing shaft 18 is compensated in two directions .
  • the tilt compensation device 17 comprises an inclinometer, which drives the actuators in a direct manner.
  • the object of this is, among other things, to reassure the user, as it prevents the user from noticing the deflection of the device, which might lead to confusion as to the precision of the system. Furthermore, it is necessary in many cases to position the receiver under a horizontal surface, such as a tabletop. The longitudinal axis of the receiver is to that end held in a horizontal position at all times. Consequently, only the movement of the receiver to caused by the deflection is added to the previously calculated position.
  • a model 26 of the housing of the receiver 2 is shown in the centre of the display 19, around which four translation arrows 21, 22, 23, 24 as well as four rotation arrows 25 are displayed.
  • the arrows may be filled entirely or partially, which is an indication of the degree of movement to be carried out according to the calculations.
  • the rotation arrows 25 may indicate a clockwise or and anti-clockwise direction of rotation.
  • the display shows the model 26 of the housing of the receiver 2 in plan view, and the figures show two positions of said model 26, Figures 2A and 2C showing a horizontal position and Figure 2B showing a vertical position.
  • the translation arrows 21 and 22 are half- filled, the rotation arrows 25 are entirely filled, indicating a clockwise direction.
  • the receiver 2 must be moved some distance upwards to the right, seen in plan view, and subsequently be rotated clockwise to a considerable degree.
  • the rotation may be carried out first, in which case the translation arrows will change automatically, so that the same direction will be indicated at all times.
  • the display as shown in Figure 2B instructs the user to slightly rotate the vertically oriented receiver 2 in clockwise direction, seen in plan view.
  • the display as shown in Figure 2C indicates by means of a coloured background and the unfilled arrows that the receiver is correctly positioned for making and X-ray photo.
  • Said eccentric irradiation may lead to a projection error of the part of the body can be examined.
  • the fact is that in most examinations the central ray 35 falls perpendicularly on the receiver 2. If that is not the case, vertically oriented planes of fracture/cavities will not be correctly projected on the receiver 2.
  • a separate scattered ray grid 31' is used for said eccentric alignment, with the central grid lamella 34, which extends perpendicularly from the receiver, being spaced from the centre of the X-ray sensitive plate 30.
  • the eccentric grid 31' is square in shape, so that it can be mounted in the same manner as the standard grid 31. By mounting the grid 31' in a position in which it is rotated a quarter turn, all the corners of the plate 30 can be irradiated, as is shown in the crossed surfaces in Figures 5A-5D, in which position the grid lamellae 32 may extend in two mutually perpendicular directions as determined by the user.
  • the use of said eccentric scattered ray grid 31' makes it possible to realise an eccentric position, with the central ray 35 directed perpendicularly to the receiver 2.

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

Abstract

L'invention concerne un système de production d'une photo à rayons X, qui comprend un dispositif de transport d'émetteur, que l'on peut fixer à un point fixe dans une salle au moyen d'une première extrémité, et un émetteur à rayons X, qui est fixé à la seconde extrémité du dispositif de transport d'émetteur. Ce dispositif comprend un certain nombre de bras pouvant pivoter, glisser, s'emboîter et/ou tourner les uns par rapport aux autres, ce qui permet de manoeuvrer l'émetteur dans une position désirée, un dispositif de transport de récepteur, qui peut être fixé à un point fixe, dans une salle au moyen d'une première extrémité, et un récepteur à rayons X, qui est fixé à la seconde extrémité du dispositif de transport de récepteur. Ledit dispositif de transport de récepteur comprend un certain nombre de bras pouvant pivoter, glisser, s'emboîter et/ou tourner les uns par rapport aux autres, ce qui permet de manoeuvrer le récepteur dans la position désirée. Ledit système est équipé de capteurs grâce auxquels on peut déterminer l'émetteur et le récepteur, ainsi que d'une unité arithmétique, qui est reliée aux capteurs.
PCT/NL2006/050134 2005-06-30 2006-06-06 Systeme de production d'une photo a rayons x Ceased WO2007004874A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1029377 2005-06-30
NL1029377A NL1029377C2 (nl) 2005-06-30 2005-06-30 Systeem voor het vervaardigen van een röntgenfoto.

Publications (2)

Publication Number Publication Date
WO2007004874A2 true WO2007004874A2 (fr) 2007-01-11
WO2007004874A3 WO2007004874A3 (fr) 2007-07-12

Family

ID=35241152

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2006/050134 Ceased WO2007004874A2 (fr) 2005-06-30 2006-06-06 Systeme de production d'une photo a rayons x

Country Status (2)

Country Link
NL (1) NL1029377C2 (fr)
WO (1) WO2007004874A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019108570A2 (fr) 2017-11-29 2019-06-06 Copernicus Therapeutics, Inc. Thérapie génique pour l'amélioration des fonctions oculaires

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02159256A (ja) * 1988-12-13 1990-06-19 Toshiba Corp Ｘ線管支持装置
DE19611705B4 (de) * 1996-03-25 2005-01-27 Siemens Ag Röntgenaufnahmeeinrichtung
US6155713A (en) * 1997-06-19 2000-12-05 Kabushiki Kaisha Toshiba X-ray diagnostic apparatus having an X-ray generating portion and an X-ray detecting portion independent of each other
US6200024B1 (en) * 1998-11-27 2001-03-13 Picker International, Inc. Virtual C-arm robotic positioning system for use in radiographic imaging equipment
DE19855213C2 (de) * 1998-11-30 2001-03-15 Siemens Ag Röntgenaufnahmeeinrichtung
US6702459B2 (en) * 2001-04-11 2004-03-09 The Uab Research Foundation Mobile radiography system and process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019108570A2 (fr) 2017-11-29 2019-06-06 Copernicus Therapeutics, Inc. Thérapie génique pour l'amélioration des fonctions oculaires

Also Published As

Publication number Publication date
NL1029377C2 (nl) 2007-01-04
WO2007004874A3 (fr) 2007-07-12

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