• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a mobile x-ray device with telescopic column comprising: a chassis (1) which supports the entire assembly; a telescopic column (2) which comprises a fixed lower portion (5) rotatable with respect to a vertical axis and at least one movable upper portion (6); a telescopic arm (3) that moves along the vertical column which supports at its end an x-ray source head (4), in which the telescopic arm and head assembly can be moved from a condition retracted in a lower position in the movable column to an extended condition in an upper position in the movable column. all movements of the column are manual and the device comprises a mechanical balance mechanism which comprises a first mechanism consisting of a spring, a hoist and a pulley of variable radius housed in the fixed lower portion (5) of the column, and a second mechanism balance consisting of a recovery sheave and a housed two-spoke sheave which balances the weight between the cable entry and the telescopic arm and head assembly.
    公开号:BR112014018480B1
    申请号:R112014018480-1
    申请日:2013-07-04
    公开日:2021-07-20
    发明作者:Ildefonso Moreno Vallejo；Diego Sanz Parreno；Angel GARCÍA ALONSO；Javier Fernández Juarez；Andrés Causapé Rodríguez
    申请人:Sociedad Espanola De Electromedicina Y Calidad, S.A.；
    IPC主号:
    专利说明:

    Purpose of the Invention
    [001] The purpose of the present invention, as the title of the invention establishes, is a mobile X-ray device having a telescopic column used to perform X-rays, which can reach any point in space and also having a design capable of adopting a configuration that facilitates the movement of the equipment.
    [002] The mobile X-ray device comprises a chassis that supports the entire assembly, a telescopic column comprising a fixed portion attached to the chassis, the fixed portion having at least one telescopic portion, the device additionally comprises a telescopic arm movable to the along at least one telescopic portion which supports an X-ray source head at its end.
    [003] The present invention is characterized by its configuration and the special design of each, as well as all the elements forming part of the equipment and, particularly, by the fact that both: the column and the arm that support the source head X-rays are telescopically extendable allowing any point in space to be reached, in addition to adopting a compact configuration that facilitates movement and which has a mechanism balancing all the movements of the telescopic arm along the mobile extension and retraction portion of the column telescopic.
    [004] Therefore, the present invention relates to the field of mobile devices for performing X-rays. Background of the Invention
    [005] The state of the art knows mobile devices for carrying out X-rays such as the one disclosed in the US patent document No. US 2011024807, which comprises a chassis on which a telescopic column is mounted and to which an arm telescopic is associated, whose arm has an X-ray source head at its end.
    [006] The device is provided with means to mechanically balance the vertical movements that occur, the movement of extension and retraction of the movable portion of the column, and the movement of the telescopic arm along the movable portion of the column.
    [007] The means used to balance the two movements are counterweights and/or motorized braking systems, which are expensive and complex means that depend on the power supply and that require constant maintenance.
    [008] Consequently, the object of the present invention is to provide a mobile X-ray device comprising both a telescopic column and a telescopic arm having an X-ray emission source mounted at its end, in which the means to balance the movements verticals are simplified, thereby providing a mobile X-ray device such as the one described below whose protection is essentially reflected in claim one. Invention Summary
    [009] The purpose of the present invention is a mobile X-ray device with a telescopic column on which a telescopic arm is mounted which has an X-ray emission source mounted at its end, the mobile device being provided, on the telescopic column, with means to balance the vertical movement of the set.
    [010] The mobile X-ray device is composed of the following parts:
    [011] - an arm and head assembly comprising a telescopic arm and an X-ray emission source at its end;
    [012] - a telescopic column having a fixed lower portion and a movable upper portion that allows the positioning of the height of the arm and head assembly. This column can, in turn, rotate around a vertical axis allowing the arm and head assembly to rotate around the column in a horizontal plane;
    [013] - a telescopic arm that moves along the vertical column and which supports at its end an X-ray emission source, said arm when extending or retracting allowing the X-ray emitting source to approach or move away horizontally;
    [014] - a chassis which supports the entire telescopic column, which includes a handling system, whether manual or motorized, which includes wheels that allow the mobile X-ray device to be moved;
    [015] - a head or head assembly which includes an X-ray emission source; and
    [016] - a user console.
    [017] Thanks to the combination of the extension characteristics of both the telescopic column and the telescopic arm, it is possible, on the one hand, to reach any point in space in which an X-ray is to be performed, while, on the other hand, adopting a configuration compact in such a way that when moving the telescopic column itself does not present an obstacle to the field of vision beyond the mobile device.
    [018] Both the chassis and the telescopic arm incorporate a parking brake in such a way that the X-ray emission source is in a locked condition during transport for greater safety. This transport configuration allows an unobstructed field of view for the operator driving the equipment.
    [019] The arm and head assembly can be moved from a retracted condition in a lower position of the movable column (minimum height position) to an extended condition in the upper position of the movable column (maximum height position).
    [020] Additionally, all column movements are manual and are mechanically balanced, so it is possible to position the arm and head assembly at any height between the maximum and minimum height positions.
    [021] The movements of the elements mounted on the chassis of the mobile X-ray device are:
    [022] - rotation of the telescopic column about a vertical axis on a horizontal plane;
    [023] - vertical movement, with extension and retraction of the telescopic column;
    [024] - movement of the arm and head assembly over the mobile portion of the telescopic column;
    [025] - extension and retraction of the telescopic arm; and
    [026] - the rotation of the head assembly.
    [027] Of all these movements, two are performed in a vertical direction and need to be balanced: the arm and head assembly along the mobile portion of the column and the extension and retraction of the telescopic column.
    [028] In the prior art this problem is typically solved by means of counterweights and/or motorized braking systems. In the present invention, due to the fact that all the movements described above are manual and mechanically balanced, a correct and continuous functioning of the balance system is ensured, in contrast to balance systems based on electrical means, which require maintenance and have greater risk of failure.
    [029] The mechanical balancing mechanism according to the present invention is divided into two parts:
    [030] - a first mechanism that balances the weight of the set of two bodies with vertical movement, which are the mobile part of the column and the arm and head assembly, which set is formed by the fixed column, the hoist, the spring, and by the sheaves with variable radii; and
    [031] - a second mechanism that balances the weight of the arm and head assembly, which is formed by the movable column, the recovery pulley and the two-spoke pulley.
    [032] The second balancing mechanism can be modified to admit other vertical telescopic portions merely by adding a new variable radius sheave and a new recovery sheave for each new movable portion of the telescopic column.
    [033] The telescopic arm comprises several portions, a base portion joined to the column and at least one other portion which slides horizontally with respect to the base portion. Brief Description of Drawings
    [034] To complement this descriptive report and with the purpose of contributing to a better understanding of the characteristics of the invention, according to the preferred practical realization thereof, drawing sheets are presented as an integral part of this descriptive report, in which, by way of illustration and not limitation, the following is shown:
    [035] Figure 1 is a perspective view showing the mobile X-ray device according to the present invention;
    [036] Figure 2 is a side elevation view showing the device in its compact and retracted position.
    [037] Figures 3 and 4 are views in alter elevation showing the extreme positions that the telescopic arm and head assembly with the X-ray emission source can adopt in terms of height, with Figure 3 showing the minimum height position and Figure 4 showing the maximum height position;
    [038] Figure 5 is a simplified illustrative view of the mechanical balancing means of the mobile device;
    [039] Figure 6 is an exploded perspective view of the telescopic column and the balancing means housed within it;
    [040] Figure 7 is a top view of the telescopic column;
    [041] Figures 8 and 9 are cross-sectional views of the telescopic column taken along planes VIII-VIII and IX-IX respectively; Figure 10 is a perspective view of the device in its compact and retracted position illustrating the different rotation possibilities of the user console, Preferred Embodiment Of The Invention
    [042] A description of a preferred embodiment of the present invention will be made hereinafter with reference to the drawings.
    [043] From Figure 1 it can be seen that the mobile device object of the present invention comprises:
    [044] - a chassis (1) that supports the telescopic column and which is provided with a manual or motorized movement system which includes wheels that allow moving the mobile X-ray device;
    [045] - a telescopic column (2) comprising a fixed lower portion (5) rotatable with respect to a vertical axis and at least one mobile upper portion (6);
    [046] - a telescopic arm (3) vertically movable along the vertical column, which supports at its end a head assembly (4) inside which is an X-ray emission source, said arm when extending or retract allowing the source of the X-ray emission to approach or move away horizontally;
    [047] - the head assembly (4) including in its interior the source of X-ray emission.
    [048] The telescopic arm (3) comprises a base portion (7) and at least one other horizontally movable portion. In a possible embodiment, said telescopic arm comprises:
    [049] - a base portion (7) joined to the telescopic column (2) by means of a movable joint along the length of the last (highest) portion of the telescopic column (6);
    [050] - two portions (8, 9) horizontally slidable with respect to the base portion (7).
    [051] From Figure 2 it is possible to observe the retracted position (parking) of both the telescopic column (2) and the telescopic arm (3), in a convenient position for transporting the mobile device, as well as the field of view ( 29) of a user (24) is not limited.
    [052] Figures 1, 2 and 10 illustrate the presence of a user console (27). In Figure 1 the user console (27) is in an open position while in Figure 2 the user console (27) is in a closed position.
    [053] Figure 10 shows how the user console (27) can rotate between 0o and 90o around a horizontal axis and additionally shows how the user console (27) can rotate between -180o and +180o around of a vertical axis.
    [054] Figures 3 and 4 show the extreme height positions that the assembly formed by the telescopic arm (3) and the head assembly (4) can reach, which vary from the lowest position in the movable portion (6) in a retracted condition (Figure 3) to the highest position on the movable portion (6) in an extended condition (Figure 4).
    [055] Figure 5 schematically shows in detail the mechanical balance mechanism, which comprises:
    [056] - a first mechanism that balances the weight of the two bodies that move vertically (the mobile portion (6) of the telescopic column (2), on the one hand, and the telescopic arm (3) with the head assembly (4 ), on the other hand), whose first mechanism is housed in the lower fixed portion (5) of the telescopic column (2); and
    [057] - a second mechanism that balances the weight of the assembly formed by the telescopic arm (3) and the head assembly (4), which is stored in each of the mobile portions (6) of the telescopic column (2).
    [058] The first balancing mechanism comprises:
    [059] - a traction spring (11) using any traction technology, which is the device responsible for storing the gravitational potential energy of the mobile suspended bodies in the form of elastic potential energy when these bodies move downwards and by return this energy when bodies move upwards.;
    [060] - a hoist (12) responsible for dividing the spring force and multiplying the output cable path, whose degree of multiplication and division depends on the number of pulleys of the hoist (12). In the case shown, the multiplication factor is 6. The hoist (12) is formed by a group of lower pulleys (12.1) and a group of upper pulleys (12.2).
    [061] - a sheave of variable radius (13). The cable from the hoist (12) which is attached to the spring (11) is wound in the grooves of the variable radius sheave (13), whose radii vary along the cable path, causing the cable at the exit of the sheave to variable radius (13) has a constant tension. This force will be the sum of the weights to be balanced (the movable portion (6) of the telescopic column (2) and that of the telescopic arm (3) and the head assembly (4).
    [062] The above-mentioned elements, namely, the spring (11), the hoist (12) and the sheave of variable radius (13) are housed in the fixed column.
    [063] The fixed portion (5) of the telescopic column (2) is fixed to the chassis frame and can rotate around itself. The rotation mechanism incorporates a concentric opening with the column, which allows the passage of the electrical cables of the system that come from the chassis (1) to the telescopic column (2) and whose final destination is any device between said opening and up to the assembly of head (4).
    [064] In a possible embodiment of the invention the hoist (12) is achieved with only two axes, with the upper pulleys (12.1) and the variable radius pulley (13) being coaxial on the one hand and, on the other hand, the lower pulleys (12.2). This configuration does not preclude other possible hoist configurations that can perform and perform the same function.
    [065] The system represented in Figure 5 has two degrees of freedom in a vertical direction whose movement is manual and balanced. Therefore, if the head assembly (4) is manually shifted in a vertical direction, there is a lack of determination as to which of the two vertical guides will begin to shift. Due to different degrees of friction of the vertical guides (16, 17) only one of the two will move until reaching the maximum height, from which the other will start to move.
    [066] The second balancing mechanism comprises:
    [067] - a two-spoke pulley (14) that is responsible for balancing the weight of the telescopic arm (3) and the head assembly (4) with the traction at the entrance of this pulley (the sum of the mobile portion (6) plus the telescopic arm (3) and the head assembly (4)). This is achieved by making the ratio between the entry radius and the exit radius equal to the weight of the arm (3) and head (4) assembly divided by the weight of the movable portion (6) plus the telescopic arm (3) and the head assembly (4), that is, the ratio between the entry radius and the exit radius is equal to the quotient between the sum of the weights of the arm (3) and head (4) set divided by the sum of the portion weights mobile (6) plus the telescopic arm (3) and the head assembly (4). This two-spoke pulley (14) is fixed to the upper part of the movable portion (6) of the telescopic column (2).
    [068] - a retrieval pulley (15) that allows the cable from the variable radius pulley to pull in an upward direction from the bottom of the movable portion (6) of the telescopic column (2).
    [069] The second balancing mechanism is housed in the movable portion (6), thus housing the recovery pulley (15) and the two-spoke pulley (14). Additionally also the linear guides (16) between the mobile portion (6) and the fixed portion (5) and the linear guides (17) between the mobile portion (6) and the telescopic arm (3).
    [070] The second balancing mechanism can be modified to admit additional portions, as many as the movable portions of the telescopic column (2), simply by adding a new two-spoke pulley and a recovery pulley for each of the new portions of the telescopic column (2).
    [071] In this Figure 5 the telescopic arm (3) is also represented, which at its end receives the head assembly (4) consisting of the X-ray emission source (4.1) and the X-ray collimator (4.2) .
    [072] In Figure 6, it is possible to observe the elements described above with the rotating joint between the fixed lower portion (5) and the chassis (1) being particularly shown, which is composed by means of a bearing (5.1), the said joint having an opening through which the system cables passing from the chassis (1) to the fixed portion (5) and whose final destination may be any device between said opening and the head assembly (4), including its components.
    [073] Front bearings (18) and side bearings (19) are arranged on the fixed portion (5) of the telescopic column (2) at its upper and lower end and on each side, which allow movement of the movable portion (6) with respect to the fixed portion (5) without displacements or puffing.
    [074] A base plate (20) can also be observed for the movement of the telescopic arm (3) whose base portion (7) is shown. Said base plate (20) is provided both at its upper end and at its lower end and on both sides with front bearings (21) and side bearings (22) which allow a perfect sliding, without displacement or hefting, of the arm telescopic (3) when its vertical movement along the mobile portion (6) to which it is associated.
    [075] In Figure 7 can be seen the guides (16) between the fixed portion (5) and the mobile portion (6) and the guides (17) between the telescopic arm (3) and the mobile portion (6). The front (18) and side (19) bearings are arranged on the guide (16) and the front (21) and side (22) bearings are arranged on the guide (17).
    [076] Figures 8 and 9 show cross-sectional views of the telescopic column in which the support (11.1) of the spring (11) at its lower end can be observed.
    [077] Additionally the mechanical balance mechanism is provided with safety means, which in a possible embodiment comprise:
    [078] - an electromagnetic brake (24) mounted on the variable radius sheave (13);
    [079] - a first braking mechanism (25) which prevents a possible fall of the assembly formed by the telescopic arm (3) and head assembly (4) in case of cable breakage; and
    [080] - a second braking mechanism (26) which prevents a possible fall of the movable portion (6) in case of cable breakage.
    [081] Having sufficiently described the nature of the present invention, in addition to a way of putting it into practice, it is stated that within its essence, it can be put into practice through other embodiments which differ in details of that represented by way of example, and from which the protection set forth herein will be similarly extended provided that its fundamental principle is not altered, changed or modified.
    权利要求:
    Claims (13)
    [0001]
    1. A mobile X-ray device with a telescopic column comprising: a chassis (1) supporting the telescopic column (2); a telescopic column (2) comprising a fixed lower portion (5) rotatable with respect to a vertical axis, and at least one movable upper portion (6); a telescopic arm (3) that moves vertically along the telescopic column (2) and that supports at its end a head assembly (4) that contains the X-ray emitter, said arm (3), when extending or retracting, allows the X-ray emitter to move away or approach horizontally; wherein the assembly comprising the telescopic arm (3) and the head assembly (4) can move from a minimum height in the lowest position of the at least one movable upper portion (6) in the retracted position of the telescopic column (2) up to a maximum height in the highest position of the movable portion (6) in the extended position of the telescopic column (2); in which all column movements are manual and have a mechanical balancing mechanism, said mechanical balancing mechanism comprising: a first mechanism is housed in the fixed portion (5) of the telescopic column (2) that balances the weight of the two suspended bodies with the vertical movement (the at least one movable upper portion (6) on one side, and the telescopic arm (3) with the head assembly (4) on the other side); and a second mechanism housed in each of the at least one movable upper portion (6) of the telescopic column (2) that balances the weight of the assembly consisting of the telescopic arm (3) and the head assembly (4), characterized in that : the first balancing mechanism comprises: a tension spring (11) which can use any type of traction technology, and which is fixed to a support (11.1) at its lower end; a pulley assembly (12) consisting of a group of lower pulleys (12.1) and a group of upper pulleys (12.2), the lower pulleys (12.1) of the hoist being connected to the tension spring (11); and a variable radius pulley (13), wherein the cable from the pulley assembly (12) is wound in pulley grooves whose radii vary along the cable path to ensure that the cable at the pulley outlet (13 ) has a constant tension, which is the sum of the two weights to be balanced (that of the at least one mobile upper part (6) and that of the telescopic arm (3) with the head assembly (4).
    [0002]
    2. Device according to claim 1, characterized in that the chassis (1) has a wheel system with manual or motorized movement, which allows the equipment to be moved.
    [0003]
    3. Device according to claim 1, characterized in that the telescopic arm (3) comprises a base portion (7) fixed to at least one movable upper portion (6) of the telescopic column (2) by a movable joint to the along the movable portion (6); and two portions (8) and (9) horizontally slidable with respect to the base portion (7) and each also with respect to the immediately preceding portion.
    [0004]
    4. Device according to claim 1, characterized in that the second balancing mechanism, housed in each of the at least one movable upper portion (6) of a telescopic column (2), comprises: a two-spoke pulley ( 14) which balances the weight of the telescopic arm (3) and the head assembly (4) with the traction at the pulley entrance (sum of at least one mobile upper portion (6) plus the telescopic arm assembly (3 ) and the head assembly (4)); and a recovery pulley (15) which allows the rope from the variable radius pulley (13) to pull upwardly from the underside of the movable portion (6).
    [0005]
    5. Device according to claim 4, characterized in that the two-spoke pulley (14) balances the forces by making the ratio between the input radius divided by the output radius equal to the sum of the weights of the set of telescopic arm (3) and the weight of the head assembly (4) divided by the sum of the weights of the at least one movable upper portion (6), the telescopic arm assembly (3) and the head assembly (4).
    [0006]
    6. Device according to claim 1, characterized in that the at least one mobile upper portion (6) has linear guides (16) between the at least one mobile upper portion (6) and the fixed portion (5), and linear guides (17) between the at least one movable upper portion (6) and the telescopic arm (3).
    [0007]
    7. Device according to claim 1, characterized in that the rotary joint between the lower fixed portion (5) and the chassis (1), which is performed by a support (5.1), has an opening (6.1) through the which the electrical cables of the system pass from the chassis (1) to the inner side of the fixed portion (5).
    [0008]
    8. Device according to claim 1, characterized in that front supports (18) and side supports (19) arranged on both sides in the fixed portion (5) of the telescopic column (2) allow a movement of the mobile portion (6) with respect to the fixed portion (5), without elevation or pitch; and front supports (21) and side supports (22) are arranged at the upper end, the lower end and both sides of the base plate (20) for movement of the telescopic arm (3), to allow guiding the telescopic arm (3 ) in its vertical movement over the at least one movable upper portion (6) to which it is associated.
    [0009]
    9. Device according to claim 1, characterized in that the mechanical balancing mechanism has safety means, a first fall protection mechanism (25) between the telescopic arm (3) and the at least one movable upper portion ( 6), and a second fall protection mechanism (26) between the at least one movable upper portion (6) and the fixed portion (5), said fall protection mechanisms preventing a possible fall of the telescopic arm (3), of the head assembly (4) and of the at least one movable upper portion (6) in the event of a cable breakage.
    [0010]
    10. Device according to claim 1, characterized in that the lower fixed portion (5) is rotatable with respect to the chassis (1) by means of a rotating support (5.1) having an opening (6.1) through which the system electrical cables run from the chassis (1) to the telescopic column (2).
    [0011]
    11. Device according to any one of the preceding claims, characterized in that the mobile X-ray device comprises a user console (27).
    [0012]
    12. Device according to claim 11, characterized in that the user console (27) rotates between 0° and 90° around a horizontal axis.
    [0013]
    13. Device according to claim 12, characterized in that the user console (27) rotates between -180° and +180° around a vertical axis.
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-07-21| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-05-25| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-07-20| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 04/07/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/ES2013/070473|WO2015001144A1|2013-07-04|2013-07-04|Mobile x-ray device comprising a telescopic column|
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