Multifunctional Radiography, Tomography and Fluoroscopy Device

Abstract

The invention relates to radiographic equipment comprising a height-adjustable board (1), a C-shaped arch (3), disposed transversally to the greater dimension (D) of the board (1), said board being housed within the internal space defined between the two free extremities (3, 3) of the arch (3). The arch (3) is slidingly mounted on a column (4) by means of a connecting element (5) in such a way that as the arch (3) rotates around an imaginary rotational axis (13) it causes the connecting element (5) to slide or roll throughout the extension of the arch (3). It further comprises a rail (12) extending parallel to the greater dimension of the board (1), on which the column (4) rests. The arch (3) features at its lower extremity (3) an x-ray receiver (6) and at its upper extremity (3) an x-ray emission assembly (7).

Claims

1. Multi-purpose equipment for radiography, tomography and fluoroscopy, characterised in that it comprises: a height-adjustable board (1) a C-shaped arch (3), disposed transversally to the greater dimension (D) of the board (1), said board remaining housed within the internal space comprised between the two free extremities (3, 3) of the arch (3), a column (4) on which the arch (3) is mounted, said column (4) being equipped with a connecting element (5) to which the arch (3) is slidingly attached, in such a way that as the arch (3) rotates around an imaginary rotational axis (13) parallel to the greater dimension (D) of the board (1), the connecting element (5) slides or rolls throughout the extension of the arch (3), a rail (12) extending parallel to the greater dimension (D) of the board (1), on which the column (4) rests and is displaced, wherein the C-shaped arch (3) comprises: at its lower extremity (3) a flat panel or x-ray receiver (6), housed below the board and configured to move solidarily with the arch (3); at its upper extremity (3) an x-ray emission assembly (7) formed by an x-ray tube (8) and a collimator (9); and a connecting element (14) enabling the attachment of the upper extremity (3) of the arch (3) to the x-ray emission assembly (7).

2. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in claim 1, characterised in that the flat panel or receiver (6) is configured to enable its lateral displacement in an orientation transversal to the greater dimension (D) of the board (1) and in both directions, in order to increase in the field of view (11) in tomography.

3. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in any of the preceding claims, characterised in that the flat panel or receiver is configured to take several sequential photographs, enabling the performance of real-time fluoroscopy.

4. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in any of the preceding claims, characterised in that the connecting element (5) is a roller bearing or other device.

5. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in any of the preceding claims, characterised in that the board (1) comprises height-adjustable legs (2).

6. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in any of the preceding claims, characterised in that the board (1) is a floating board.

7. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in any of the preceding claims, characterised in that the collimator is asymmetric, comprising a number of blinds which may move independently and asymmetrically as required, in order to prevent the irradiation of undesired areas.

8. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in any of the preceding claims, characterised in that it includes a screen or monitor (10) for the viewing of the images captured.

9. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in claim 8, characterised in that the screen or monitor (10) is mounted on the arch at the extremity where the x-ray tube is located.

10. The multi-purpose equipment for radiography, tomography and fluoroscopy, as claimed in any of the preceding claims, characterised in that the arch features means enabling its rotation with regard to a horizontal axis (15) passing through the point of attachment to the column (4), and in that the column is displaced or rotated in such a way that the rotation of the arch (3) does not interfere with the table.

11. Multi-purpose equipment for radiography, tomography and fluoroscopy comprising: a table provided with a board (1) that has longer sides and shorter sides and height-adjustable legs that support the board (1) wherein the board (1) is vertically displaceable, a frame (3) that is substantially C-shaped, which is disposed transversally to the longer side of the board (1), which has a rotational movement in both directions around a central rotation axis perpendicular to the plane of the frame (3), which has an upper extremity and a lower extremity, a radiation emission assembly (7) disposed in the upper extremity of the frame (1) that incorporates an x-ray tube and a collimator, an x-ray detection assembly disposed in the lower extremity of the frame (3), and a first body (16) on which the frame is mounted with the capacity of rotational sliding, which incorporates a first drive unit and a first transmission mechanism that cause the rotational sliding movement of the frame (3), characterised in that the equipment further comprises a rail (12) that can be coupled to the floor and parallel to the longer side of the board (1), on which the first body (16) and the frame (3) are displaced in a direction parallel to the longer side of the board (1), and in that the x-ray tube of the radiation emission assembly is intended to perform 2D radiographs and 3D tomographs of the patient and real-time fluoroscopy, and the x-ray detection unit comprises a dynamic flat panel (6) intended to receive x-rays for performing 2D radiographs and 3D tomographs and taking various simultaneous photographs to perform real-time fluoroscopy.

12. The multi-purpose equipment for radiography, tomography and fluoroscopy according to claim 11, characterised in that the first body (16) comprises a second drive unit and a second transmission mechanism that facilitate the guided displacement of the first body (16) on the rail (12).

13. The multi-purpose equipment for radiography, tomography and fluoroscopy according to claim 11, characterised in that it further comprises a rotational mechanism (17) on which the first body (16) is mounted that facilitates the total rotation of the first body (16) and frame (3) around a horizontal axis contained in the plane of the frame (3); moreover, it comprises a second body (18) with respect to which the rotational mechanism (17) can be displaced in height and therefore the first body (16) and the frame (3), the second body (18) having a third drive unit and a third transmission mechanism that facilitate the guided displacement of the second body (18) on the rail (12) in a direction parallel to the longer side of the board (1).

14. The multi-purpose equipment for radiography, tomography and fluoroscopy according to claim 11, characterised in that the dynamic flat panel (6) is mounted on the lower end of the frame (3) with intermediation of a structure (19) that enables the displacement of the board (1) in a direction perpendicular to the plane of the frame (3).

Description

EXPLANATION OF THE FIGURES

[0033] As a supplement to the description made herein, and for the purpose of aiding a better understanding of the characteristics of the invention, in accordance with a preferred example of a practical embodiment of the same, a set of drawings is attached as an integral part of said description wherein, by way of illustration and not limitation, the following is portrayed:

[0034] FIG. 1.Portrays a perspective view of radiographic equipment such as the object of the present invention.

[0035] FIG. 2.Portrays two schematic lateral views of the C-shaped arch with the flat panel or receiver displaced laterally in a direction transversal to that of the board.

[0036] FIG. 3.Portrays a perspective view of radiographic equipment such as the object of the invention while it performs the capture of images (the arch appears completely rotated in one of the directions of rotation).

[0037] FIGS. 4 to 6 portray an additional embodiment wherein the guide rail presents a length greater than the length of the table, and wherein the arch offers the possibility of rotation around a horizontal axis.

[0038] FIG. 7.Portrays a perspective view of an alternative embodiment of the equipment of the invention wherein the column is replaced by a body that includes motorisation and transmission mechanisms that facilitate the movements of the frame.

[0039] FIG. 8.Portrays a view of another embodiment of the invention wherein the column is replaced by bodies with motorisation and mechanisms that enable additional movements of the frame.

PREFERRED EMBODIMENT OF THE INVENTION

[0040] In the light of the figures, a preferred embodiment of the proposed invention may be found below.

[0041] In FIG. 1 a radiography x-ray machine may be observed; this comprises, among other elements, a board (1) supported by a number of height-adjustable motorised legs (2), enabling the board (1) to float with regard to the remainder of the equipment, and to move on the plane thereof. It further comprises a C-shaped arch (3) disposed transversally to the greater dimension (D) of the board (1), in such a way that the latter is housed within the internal space comprised between the two free extremities (3 and 3) of the arch (3).

[0042] The arch (3) is slidingly installed on a column (4) by means of a connecting element (5), which may be a linear guide or a roller bearing. Said connecting element (5) or roller bearing is configured in order to slide or roll along the extension of the arch (3) while the latter rotates with regard to an imaginary rotational axis (13) parallel to the greater dimension (D) of the board (1).

[0043] The column (4) in turn is disposed on a rail (12) located parallel to the greater dimension (D) of the board, along which the column (4), attached to the arch (3) is displaced longitudinally with regard to said board (1).

[0044] The C-shaped arch (3) presents at its lower extremity (3) a flat panel or x-ray receiver (6), while at its upper extremity it holds the x-ray emission assembly (7), comprised of an x-ray tube (8) and a collimator (9). The arch (3) is linked to the x-ray emission assembly (7) by means of a connecting element (14).

[0045] The x-ray emission assembly may include a screen or monitor (10) for the viewing of the images captured. The screen or monitor may also be disposed beside the equipment, as portrayed in FIG. 1, or may be installed on the arch at the extremity where the x-ray tube is located.

[0046] FIG. 2 portrays one of the particular characteristics of the equipment, this being the possibility that the flat panel (6) or receiver is configured so as to make possible its lateral displacement in an orientation transversal to the greater dimension of the board, and in both directions, a feature which enables an increase in the field of view (11) in tomography.

[0047] Furthermore, the flat panel or receiver is configured to take several photographs simultaneously, enabling the performance of real-time fluoroscopy.

[0048] The arch (3) is configured to rotate in both directions around an imaginary rotational axis (13) parallel to the greater dimension (D) of the board (1), in such a way that it enables the obtaining of the complete image of the patient without the need to perform a complete 360 rotation of the C-shaped arch (3).

[0049] FIG. 4 portrays an additional embodiment of the invention wherein the guide rail (12) presents a length greater than the dimension of the table, formed by the board (1) and the legs (2), and, furthermore, the arch (3) presents the particular characteristic of the possibility of rotation with regard to a horizontal axis (15) with regard to the plane of the floor, and passing through the point of attachment to the column (4), where the column (4) presents a greater height than that portrayed in the previous embodiments.

[0050] The combination of all of the above characteristics together enables the performance of 2D-3D radiographs with a patient in a vertical position.

[0051] FIG. 4 portrays the arch (3) at the lowest position on the column (4), while FIG. 5 portrays the arch (3) at the highest position.

[0052] FIG. 6 portrays the arch (3) at the lowest position possible, where the arch has been moved along its point of connection, with the column (4) close to the receiver (6).

FIG. 7 portrays the arch (3) at the highest position on the column (4), where the arch has been moved along its point of connection, with the column (4) close to the x-ray emission assembly (7).

[0053] According to another embodiment shown in FIG. 8, the multi-purpose equipment for the performance of radiography, tomography and fluoroscopy comprises:

[0054] a table provided with a board (1) that has longer sides and shorter sides and height-adjustable legs that support the board (1) wherein the board (1) is vertically displaceable,

[0055] a frame (3) that is substantially C-shaped, which is disposed transversally to the longer side of the board (1), which has rotational movement in both directions around a central rotation axis perpendicular to the plane of the frame (3), which has an upper extremity and a lower extremity,

[0056] a radiation emission assembly (7) disposed in the upper extremity of the frame (1) that incorporates an x-ray tube and a collimator,

[0057] an x-ray detection assembly disposed in the lower extremity of the frame (3), and

[0058] a first body (16) on which the frame is mounted with the capacity of rotational sliding, which incorporates a first drive unit and a first transmission mechanism that cause the rotational sliding movement of the frame (3).

[0059] Furthermore, it is observed in this same FIG. 8 that the equipment comprises a rail (12) that can be coupled to the floor and parallel to the longer side of the board (1), on which the first body (16) and the frame (3) are displaced in a direction parallel to the longer side of the board (1).

[0060] The equipment shown in FIG. 8 is mostly known because the x-ray tube of the radiation emission assembly is intended to perform 2D and 3D radiographs of the patient and real-time fluoroscopy, and the x-ray detection assembly comprises a dynamic flat panel (6) intended to receive x-rays for performing 2D and 3D radiographs and taking various simultaneous photographs to perform real-time fluoroscopy.

[0061] In the embodiment portrayed in FIG. 8, the first body (16) internally comprises a second drive unit and a second transmission mechanism that facilitate the guided displacement of the first body (16) on the rail (12).

[0062] Furthermore, it shows another embodiment of the equipment portrayed in FIG. 9, wherein, unlike FIG. 8, the first body (16) is mounted in a rotational mechanism (17) that facilitates the total rotation of the first body (16) and frame (3) around a horizontal axis contained in the plane of the frame (3); moreover, it is observed that the equipment comprises a second body (18) with respect to which the height of the rotational mechanism (17) can be displaced and therefore, the first body (16) and the frame (3), the second body (18) having a third drive unit and a third transmission mechanism that facilitate the guided displacement of the second body (18) on the rail (12) in a direction parallel to the longer side of the board (1).

[0063] In both cases, the dynamic flat panel (6) is mounted on the lower end of the frame (3) with intermediation of a structure (19) that enables the displacement of the board (1) in a direction perpendicular to the plane of the frame (3).