APPARATUS, SYSTEMS AND METHODS FOR PRODUCING X-RAY IMAGES
A mobile X-ray apparatus for medical examination includes an apparatus for producing X-ray images having a digital Radiography detector positioned at a first spatial position, an X-ray tube assembly positionable at a second spatial position relative to the first spatial position, sensor(s) for providing the first spatial position and/or the second spatial position, a control unit for receiving the first and/or the second spatial position(s) from the at least one sensor and for controlling the first or second spatial position for alignment of the X-ray tube assembly with the detector based on the first and second spatial positions, a drive wheel, a base, optionally an elevating column, and a telescopic arm which is rotatable into a direction perpendicular to a driving direction of the base. The apparatus is controllable to drive along a patient table and/or the X-ray tube assembly is height adjustable in front of a wall stand, for alignment.
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This application is a continuation of and claims the benefit of International Application No. PCT/SE2012/051259, filed Nov. 15, 2011, the disclosure of which is hereby incorporated by reference.
FIELDThis disclosure pertains in general to the field of X-ray imaging. More particularly, the disclosure relates to a mobile X-ray apparatus for medical examination.
BACKGROUNDVarious X-ray apparatuses are known. Some of the known X-ray apparatuses are stationary, and can not be moved. Others are mobile and can be moved. However, the prior art mobile X-ray apparatuses are bulky, heavy and large. They have batteries, which contain lead and acid. Thus, they are not environmentally friendly. Furthermore, for height adjustments of an X-ray tube, a counter balanced mechanism with a counter-weight is used, which further increases weight, and a tall vertical column, which blocks the view in front of the mobile X-ray apparatus for the steering person behind it during movement. In addition, the prior art mobile X-ray apparatuses are too large for convenient transportation.
Moreover, the prior art X-ray systems generally have many additional components, such as a manoeuver console, a computer for examination of images, a fixed X-ray generator, various holders and a separate display unit, positioned at various places in an examination room.
Thus, it would be advantageous to reduce the number of components used for X-ray imaging.
In addition, many existing stationary X-ray systems use old analogue detectors.
Thus, it would be advantageous to provide means for upgrading systems with analogue detectors so that digital radiography detectors can be used, i.e. retrofitting.
From U.S. Pat. No. 8,021,045 B2, a portable X-ray apparatus is known. However, as can be seen in
Thus, there is a need for an improved mobile X-ray apparatus, which is compact, light and small.
An environmentally friendly mobile X-ray apparatus, having lead free and acid free batteries would also be advantageous.
It would also be advantageous to have a free view of what is in front of the mobile X-ray apparatus during driving or moving of the apparatus.
A mobile X-ray apparatus, which can easily be transported, would also be advantageous.
SUMMARYAccordingly, embodiments of the present disclosure preferably seek to mitigate, alleviate or eliminate one or more deficiencies, disadvantages or issues in the art, such as the above-identified, singly or in any combination by providing an apparatus, a system and methods for producing X-ray images, according to the appended patent claims.
According to one aspect of the disclosure, an apparatus for producing X-ray images is provided. The apparatus comprises a digital radiography detector, positioned at a first spatial position. It also comprises an X-ray tube assembly positionable at a second spatial position at a distance relative the first spatial position. Furthermore, it also comprises at least one sensor for providing the first spatial position and/or the second spatial position. Sensors that can be used are angle sensors, compasses, inclinometers, gyros, potentiometers, encoders and/or GPS receivers. In addition, local GPS or local sensor networks can be used for an absolute positioning. These systems may include the use of magnets and/or triangulation. Moreover, the apparatus comprises a control unit for receiving the first spatial position and/or the second spatial position from the at least one sensor. The control unit is adapted to control the second spatial position or the first spatial position for alignment of the X-ray tube assembly with the digital radiography detector, based on the first and second spatial positions. Optionally the apparatus comprises a drive wheel, a base, a telescopic arm and/or an elevating column. The apparatus can be positioned quickly and easily.
According to another aspect of the disclosure, a system for producing X-ray images is provided. The system comprises a workstation, such as a patient table or a wall stand, and an apparatus. The control unit of the apparatus is configured to align the X-ray tube assembly with the workstation from data, provided by sensors, such as angle sensors, compasses, inclinometers, gyros, potentiometers, encoders and/or GPS receivers located at the workstation. The data used comprises identification data and position data. Optionally angle data of the workstation is included. With the provided data, embodiments simplify or facilitate the alignment of the X-ray tube assembly with the workstation.
According to yet another aspect of the disclosure, a system for producing X-ray images is provided. The system comprises a workstation, such as a wall stand or a patient table, and an apparatus, such as a mobile X-ray apparatus. The digital radiography detector of the apparatus is positioned at the workstation. The control unit of the apparatus is configured to control at least one actuator of the apparatus for aligning an X-ray tube assembly of the apparatus with the digital radiography detector based on the first and second spatial positions, i.e. the positions of the digital radiography detector and the mobile X-ray apparatus. Through the use of a tracking unit, automatic alignment of the X-ray tube assembly and the digital radiography detector is enabled. The alignment can be in a vertical plane and/or in a horizontal plane.
According to a further aspect of the disclosure, a method of producing X-ray images is provided. The method comprises positioning of a digital radiography detector at a first spatial position and positioning of a mobile X-ray apparatus at a second spatial position at a distance relative the first spatial position. The first spatial position and/or the second spatial position are received from at least one sensor. Furthermore, optionally adjustment of the height of an elevating column is performed. Adjustment of a rotational angle of a telescopic arm is optionally performed. In addition, as an option, adjustment of a length of the telescopic arm is performed. All the adjustments are based on the first and second spatial positions. Also tilting and/or rotating of an X-ray tube assembly to align the X-ray tube assembly with the digital radiography detector is performed, based on the first and second spatial positions, if needed. An X-ray image is obtained.
According to another aspect of the disclosure, a method of producing X-ray images is provided, which comprises positioning of a digital radiography detector at a first spatial position. Positioning of a mobile X-ray apparatus at a second spatial position at a distance relative the first spatial position is performed. The first spatial position and/or the second spatial position are received by a control unit from at least one sensor. Optionally, adjustment of the height of an elevating column is performed, based on the first and second spatial positions. Also adjustment of a rotational angle of a telescopic arm can optionally be performed, based on the first and second spatial positions. As an option, the length of the telescopic arm is also adjusted, based on the first and second spatial positions. If needed, tilting and/or rotating of an X-ray tube assembly to align the X-ray tube assembly with the digital radiography detector is performed, based on the first and second spatial positions. An X-ray image is obtained. Then, the digital radiography detector may be repositioned. Alternatively the mobile X-ray apparatus may be repositioned. Thereafter more X-ray images can be obtained. The repositioning of the digital radiography detector or repositioning of the mobile X-ray apparatus and the obtaining of X-ray images may continue until a desired number of X-ray images are obtained.
According to a further aspect of the disclosure, an apparatus for producing X-ray images is provided. The apparatus comprises a drive wheel and a base. The base comprises an elevating column, which is rotationally fixed in relation to the base. The base further comprises a control unit, which is adapted to control at least the drive wheel and the elevating column. The base also comprises a telescopic arm, which is rotatable around the elevating column and connected to the elevating column with a connecting element in a joint. The telescopic arm and the connecting element are located outside an outer segment of the elevating column. Thus, the telescopic arm and the connecting element can freely move outside an outer segment of the elevating column and therefore X-ray images can be obtained from a very low height, i.e. a height which is just above the bottom of the elevating column. The elevating column does not block the view in front of the driver, and the apparatus therefore provides for a safer driving or movement. The apparatus is also of a compact size, so that it can be transported easily. Thus, fast, easy and safe transportation of the mobile X-ray apparatus is provided.
According to another aspect of the disclosure, a system for producing X-ray images is provided. The system comprises a workstation and an apparatus. The control unit of the apparatus is configured to align the X-ray tube assembly with the workstation from data, provided by angle sensors, compasses, inclinometers, gyros, potentiometers, encoders and/or GPS receivers at the workstation. The data used comprises identification data and position data. Optionally angle data of the workstation is included. With the provided data, embodiments simplify or facilitate the alignment of the X-ray tube assembly with the workstation.
According to yet another aspect of the disclosure, a system for producing X-ray images is provided. The system comprises a workstation and an apparatus. The workstation comprises a movable digital radiography detector. The apparatus comprises a tracking unit for receiving spatial data of the digital radiography detector in relation to the apparatus from at least one sensor. Sensors that can be used are angle sensors, compasses, inclinometers, gyros, potentiometers, encoders and/or GPS receivers. In addition, local GPS or local sensor networks can be used for an absolute positioning. These systems may include the use of magnets and/or triangulation. The control unit of the apparatus is configured to control actuators of the apparatus for aligning an X-ray tube assembly of the apparatus with the digital radiography detector based on the spatial data. Through the use of a tracking unit, automatic alignment of the X-ray tube assembly and the digital radiography detector is enabled. The alignment can be in a vertical plane or in a horizontal plane.
According to a further aspect of the disclosure, a method of producing X-ray images is provided. The method comprises positioning of a mobile X-ray apparatus for use in medical examination. In the method, tracking of a movable digital radiography detector is performed. Furthermore, adjustment of the height of an elevating column is performed, if needed. If needed, adjustment of a rotational angle of a telescopic arm is performed. The telescopic arm and the connecting element are located outside an outer segment of the elevating column. Thus, the height of the telescopic arm can also be adjusted. In addition, adjustment of a length of the telescopic arm is performed, if needed. Also tilting and/or rotating of an X-ray tube assembly to align the X-ray tube assembly with the digital radiography detector is performed, if needed. An X-ray image is obtained.
According to another aspect of the disclosure, a method of producing X-ray images is provided, which comprises positioning of a mobile X-ray apparatus. Tracking of a movable digital radiography detector is performed. Adjustment of the height of an elevating column is performed, if needed. Also adjustment of a rotational angle of a telescopic arm is performed, if needed. The length of the telescopic arm is also adjusted, if needed. If needed, tilting and/or rotating of an X-ray tube assembly to align the X-ray tube assembly with the digital radiography detector is performed. An X-ray image is obtained. Then, the movable digital radiography detector may be moved and more X-ray images can be obtained. The movement of the digital radiography detector and the obtaining of X-ray images may continue until a desired number of X-ray images are obtained.
According to yet another aspect of the disclosure, a mobile X-ray apparatus is provided. The mobile X-ray apparatus comprises a base and a digital radiography detector. The digital radiography detector is insertable into the base of the mobile X-ray apparatus. The digital radiography detector is also storable in the slot.
According to a further aspect of the disclosure, a system for producing X-ray images is provided. The system comprises a workstation and a mobile X-ray apparatus. The mobile X-ray apparatus comprises a base and a digital radiography detector. The digital radiography detector is positionable at and/or attachable to a workstation. Furthermore, the digital radiography detector is also detachable from the workstation. Moreover, the digital radiography detector is insertable into a slot of the base of the mobile X-ray apparatus. In addition, the digital radiography detector is storable in the slot of the base of the mobile X-ray apparatus.
Further embodiments of the disclosure are defined in the dependent claims, wherein features for the second and subsequent aspects of the disclosure are as for the first aspect mutatis mutandis.
Some embodiments of the disclosure provide for enabling running cables or electrical wires inside the elevating column instead of outside the elevating column.
Some embodiments of the disclosure enable a compact size during transportation.
Some embodiments of the disclosure provide for fast and easy positioning of the apparatus.
Some embodiments of the disclosure provide for easy positioning and angling of the X-ray tube.
Some embodiments of the disclosure provide for easy maneuverability of the apparatus.
Some embodiments of the disclosure provide for convenient control of the apparatus.
Some embodiments of the disclosure provide for easy movement of the X-ray tube.
Some embodiments of the disclosure provide for easy adjustment of the height when transporting the device.
Some embodiments of the disclosure enable fast and easy imaging of different parts of a patient, since the apparatus can be automatically driven along a patient table for alignment of an X-ray tube assembly with a digital radiography sensor, based on tracking of the digital radiography sensor.
It should be emphasized that the term “comprises/comprising” when used in this specification is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.
The invention can be best understood by those having ordinary skill in the art by reference to the following detailed description when considered in conjunction with the accompanying drawings in which:
Reference will now be made in detail to the presently preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Throughout the following detailed description, the same reference numerals refer to the same elements in all figures.
The following description focuses on an embodiment of the present disclosure applicable to an apparatus for producing X-ray images and in particular to a mobile X-ray apparatus. However, it will be appreciated that the disclosure is not limited to this application but may be applied to many other apparatuses for producing X-ray images, including for example stationary X-ray apparatuses.
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Loading of the image receptor 1204 into the slot 14 when the grid unit 1202 is inside the base unit 100 may be performed by inserting the image receptor 1204 slightly angled. This way, good ergonomics is provided for the user, since the angled insertion of the image receptor 1204 reduces the muscular tension in the arms of the user. The angled insertion also makes the loading of the image receptor 1204 simpler due to gravitational force. Furthermore, the height of the slot 14 from the floor may also be selected so that good ergonomics is provided for the user. As an example, the slot opening may be located 50-150 cm, and preferably 60-80 cm, above the floor level.
Once the image receptor 1204 has entered through the slot opening, the image receptor 1204 should slide down to the bottom of the slot 14. When the image receptor 1204 reaches the bottom of the slot 14, the image receptor 1204 will be locked inside. The locking mechanism may be a mechanical spring mechanism or similar.
Loading of the image receptor 1204 with the grid unit 1202 mounted thereon is performed in the same way as loading of the image receptor 1204 into the slot 14 when the grid unit 1202 is inside the base unit 100.
Unloading of the image receptor 1204 may be performed by a user simply by activating eject. Eject may be activated by pushing on the visible side of the image receptor 1204. When eject is activated, the image receptor 1204 is automatically pushed outwards 2-30 cm, and preferably 10-15 cm. This pushing may be performed by e.g. a mechanical spring mechanism. When the image receptor 1204 is in this ejected position, a plastic protection bag can easily be mounted on top and/or around the image receptor 1204 if needed for examination. A plastic protection bag is typically used for applications, in which the image receptor 1204 may otherwise get in contact with fluids. Furthermore, while the image receptor 1204 is in the ejected position, the user may grip the image receptor 1204 with a safe two-hand-grip and pull the image receptor 1204 out, while the grid unit 1202 stays inside the base unit 100. Thus, good ergonomics is provided for the user also during unloading of the image receptor 1204.
Alternatively, the image receptor 1204 may be unloaded from the base unit 100 with the grid unit 1202 mounted thereon. When the grid unit 1202 is inside the base unit 100 and the image receptor 1204 is outside the base unit 100, the user may load the image receptor 1204 into the base unit 100 and into the grid unit 1202. This may be performed by the user through activation of the grid selection device, which preferably is mechanical. Thereafter, the user activates eject by pushing on the visible side of the image receptor 1204. When eject is activated, the image receptor 1204 is automatically pushed outwards 10-15 cm. This pushing may be performed by e.g. a mechanical spring mechanism. When the image receptor 1204 is in this ejected position, a plastic protection bag can easily be mounted on top and/or around the grid unit 1202 containing the image receptor 1204 if needed for examination. Furthermore, while the grid unit 1202 containing the image receptor 1204 is in the ejected position, the user may grip the grid unit 1202 with a safe two-hand-grip and pull the grid unit 1202 with the image receptor 1204 out from the base unit 100. Thus, good ergonomics is provided for the user also during unloading of the grid unit 1202 containing the image receptor 1204.
As an alternative, the grid unit 1202 may instead be mounted and dismounted by the user outside the slot 14.
Compared to a prior art X-ray systems, the disclosed mobile X-ray apparatus comprises fewer components. As an example, the disclosed X-ray apparatus does not need any additional manoeuver console, any additional computer for examination of images, any fixed X-ray generator, any separate display unit or the holders usually used in a prior art X-ray system. Thus, a simpler and more cost-effective X-ray system is provided. Furthermore, the novel mobile X-ray system may be utilized as a fixed system, and thus replace a fixed X-ray system, although still being mobile.
Furthermore, with the disclosed mobile X-ray apparatus, systems with analogue detectors can easily be upgraded to use digital radiography detectors, since the only additional component needed to upgrade such a system is the mobile X-ray apparatus.
The present disclosure has been described above with reference to specific embodiments. However, other embodiments than the above described are equally possible within the scope of the disclosure. Different method steps than those described above, may be provided within the scope of the disclosure. The different features and steps of the disclosure may be combined in other combinations than those described. The scope of the disclosure is only limited by the appended patent claims. More generally, those skilled in the art will readily appreciate that all parameters, dimensions, materials, and configurations described herein are meant to be exemplary and that the actual parameters, dimensions, materials, and/or configurations will depend upon the specific application or applications for which the teachings of the present disclosure is/are used.
Equivalent elements can be substituted for the ones set forth above such that they perform in substantially the same manner in substantially the same way for achieving substantially the same result.
It is believed that the system and method as described and many of its attendant advantages will be understood by the foregoing description. It is also believed that it will be apparent that various changes may be made in the form, construction and arrangement of the components thereof without departing from the scope and spirit of the invention or without sacrificing all of its material advantages. The form herein before described being merely exemplary and explanatory embodiment thereof. It is the intention of the following claims to encompass and include such changes.
Claims
1-13. (canceled)
14. A system for producing X-ray images, comprising:
- a track configured to provide position data, said track extending at least partly along a patient table or to a wall stand, the track comprising at least one of a magnetic track or an optical mark;
- an apparatus configured to be moveable relative said track, comprising:
- at least one drive wheel;
- a read-out unit for said track; and
- a control unit configured to control said at least one drive wheel such that said apparatus drives along said track relative said patient table and/or to said wall stand, based on position data retrieved from said read-out unit for said track, the control unit being configured to align an X-ray tube assembly of said apparatus with a digital radiography detector of said system using one or more position sensors.
15. The system according to claim 14, wherein said system further comprises a marker at a predetermined entry position, and said moveable apparatus is configured for automatic guidance to said track based on said marker.
16. The system according to claim 14, further comprising:
- a digital radiography detector, positioned at a first spatial position, wherein the one or more position sensors comprise a first sensor configured to provide said first spatial position, said moveable apparatus further comprising: an X-ray tube assembly positionable at a second spatial position at a distance relative said first spatial position, wherein the one or more position sensors comprise a second sensor configured to provide said second spatial position; wherein said control unit is configured for receiving said first spatial position and/or said second spatial position from said at least one first and second sensor; and wherein said control unit is configured to control, based on the first and/or second spatial position and based on position data retrieved from said read-out unit for said track, said at least one drive wheel such that said apparatus drives along said track relative said patient table and/or to said wall stand, for aligning said X-ray tube assembly of said apparatus with said digital radiography detector of said system.
17. The system according to claim 14, said moveable apparatus further comprises:
- a base;
- an elevating column being rotationally fixed in the base along a longitudinally axis of said elevating column; and
- a telescopic arm, said telescopic arm being rotatable around said elevating column and connected to said elevating column with a connecting element in a joint, and wherein said telescopic arm and said connecting element are located radially outside an outer segment of said elevating column for aligning said X-ray tube assembly of said apparatus with said digital radiography detector of said system.
18. The system according to claim 17, wherein said elevating column is provided with a motor for height adjustments and wherein said motor is utilized for positioning of said X-ray tube assembly, comprising an X-ray tube and a collimator, in relation to a desired image area.
19. The system according to claim 17, wherein said X-ray tube assembly is adapted for rotating and tilting motion around a center axis or an axis in parallel with said center axis of said telescopic arm and wherein said rotating and/or tilting motion is actuated by a motor.
20. The system according to claim 17, further comprising:
- a workstation, such as a wall stand or a patient table;
- wherein said control unit is configured to align said X-ray tube assembly with said digital radiography detector and/or said workstation from data, comprising identification data, position data, and optionally angle data of said workstation, provided by said workstation.
21. The system according to claim 20,
- wherein said digital radiography detector is positioned at said workstation, and
- wherein said control unit is configured to control at least one actuator of said apparatus for said alignment of said X-ray tube assembly with said digital radiography detector based on said first and second spatial positions.
22. The system according to claim 20, wherein said digital radiography detector is detachable from said workstation and storable in a slot of said base.
23. The system according to claim 22, wherein said digital radiography detector is storable inside a detachable grid unit in said slot of said base.
24. The system according to claim 23, wherein said digital radiography detector and said grid unit are stored in said slot and wherein a user may select if said digital radiography detector is ejected with or without said grid unit mounted thereon.
25-26. (canceled)
27. A system comprising:
- a track configured to provide position data, said track extending at least partly along a patient table or to a wall stand;
- an apparatus configured to be moveable relative said track, the apparatus comprising: at least one drive wheel; an X-ray tube assembly; a read-out unit for the track; and a control unit configured to control the at least one drive wheel such that said apparatus drives along said track based on position data retrieved from said read-out unit for said track, the control unit being configured to align the X-ray tube assembly with a digital radiography detector of said system using one or more position sensors.
28. The system according to claim 27, wherein said system further comprises a marker at a predetermined entry position, and said moveable apparatus is configured for automatic guidance to said track based on said marker.
29. The system according to claim 27, further comprising:
- a digital radiography detector, positioned at a first spatial position, wherein the one or more position sensors comprise a first sensor configured to provide said first spatial position, said moveable apparatus further comprising: an X-ray tube assembly positionable at a second spatial position at a distance relative said first spatial position, wherein the one or more position sensors comprise a second sensor configured to provide said second spatial position; wherein said control unit is configured for receiving said first spatial position and/or said second spatial position from said at least one first and second sensor; and wherein said control unit is configured to control, based on the first and/or second spatial position and based on position data retrieved from said read-out unit for said track, said at least one drive wheel such that said apparatus drives along said track relative said patient table and/or to said wall stand, for aligning said X-ray tube assembly of said apparatus with said digital radiography detector of said system.
30. The system according to claim 27, said moveable apparatus further comprises:
- a base;
- an elevating column being rotationally fixed in the base along a longitudinally axis of said elevating column; and
- a telescopic arm, said telescopic arm being rotatable around said elevating column and connected to said elevating column with a connecting element in a joint, and wherein said telescopic arm and said connecting element are located radially outside an outer segment of said elevating column for aligning said X-ray tube assembly of said apparatus with said digital radiography detector of said system.
31. The system according to claim 30, wherein said elevating column is provided with a motor for height adjustments and wherein said motor is utilized for positioning of said X-ray tube assembly, comprising an X-ray tube and a collimator, in relation to a desired image area.
32. The system according to claim 30, wherein said X-ray tube assembly is adapted for rotating and tilting motion around a center axis or an axis in parallel with said center axis of said telescopic arm and wherein said rotating and/or tilting motion is actuated by a motor.
33. The system according to claim 30, further comprising:
- a workstation, such as a wall stand or a patient table;
- wherein said control unit is configured to align said X-ray tube assembly with said digital radiography Radiography detector and/or said workstation from data, comprising identification data, position data, and optionally angle data of said workstation, provided by said workstation.
34. The system according to claim 33,
- wherein said digital radiography detector is positioned at said workstation, and
- wherein said control unit is configured to control at least one actuator of said apparatus for said alignment of said X-ray tube assembly with said digital radiography detector based on said first and second spatial positions.
35. A method comprising:
- receiving position data from a track, said track extending at least partly along a patient table or to a wall stand;
- moving an apparatus relative to said track, the apparatus comprising at least one drive wheel, an X-ray tube assembly, and a read-out unit for the track;
- controlling the at least one drive wheel such that said apparatus drives along said track based on position data retrieved from said read-out unit for said track; and
- aligning the X-ray tube assembly with a digital radiography detector of said system using one or more position sensors.
Type: Application
Filed: Dec 27, 2017
Publication Date: May 17, 2018
Applicant: SOLUTIONS FOR TOMORROW AB (VACKELSANG)
Inventors: Jan Bååt (Vaxjo), Mattias Guldstrand (Varends Nobbele), Martin Göran Yngvesson (Tavelsas)
Application Number: 15/855,741