CN212140457U - Guiding perspective positioner of C-arm X-ray machine - Google Patents
Guiding perspective positioner of C-arm X-ray machine Download PDFInfo
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- CN212140457U CN212140457U CN201922393683.2U CN201922393683U CN212140457U CN 212140457 U CN212140457 U CN 212140457U CN 201922393683 U CN201922393683 U CN 201922393683U CN 212140457 U CN212140457 U CN 212140457U
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Abstract
The utility model relates to a C arm X-ray machine technical field discloses a C arm X-ray machine direction perspective locator, including mobile device and laser emission device, mobile device includes two plane moving mechanism of upper and lower parallel arrangement, a plane moving mechanism includes a movable block and drives the movable block along the X axle, X axle moving mechanism and the Y axle moving mechanism that the Y axle removed, laser emission device includes laser head and laser pipe, the upper and lower both ends of laser pipe are connected on two movable blocks through joint ball bearing respectively, the lower extreme at the laser pipe is installed to the laser head, be equipped with at least three plane sign on two plane moving mechanism respectively, and three plane sign is not located same straight line, laser irradiation through the laser head transmission is on the patient, can accurately find the body surface position of target focus, realize external location, it is quick accurate.
Description
Technical Field
The utility model relates to a C arm X-ray machine technical field especially relates to a C arm X-ray machine direction perspective locator.
Background
The C-arm X-ray machine is a device commonly used in clinical operations of hospitals and comprises an X-ray generator and an image intensifier, wherein the X-ray generator and the image intensifier are respectively connected to two ends of a C-shaped arm. The image output by the image intensifier is transmitted to the television camera in a photoelectric coupling mode to form a video signal. The video signal can be displayed on a monitor in real time so that the doctor can see the anatomical information image of the patient and the dynamic situation of the patient during the treatment process, and the visual information can assist the doctor to accurately position the foreign body or the pathological tissue in the body.
At present, a C-shaped arm X-ray machine can only generate a perspective image for observing internal tissues and organs, and does not have the functions of operation positioning and operation navigation. For the operation of locking the nail of the intramedullary nail, a nailing point needs to be accurately positioned on the body of a patient, and the C-arm X-ray machine sees the irradiated range of the patient and cannot position the nailing point in vitro.
SUMMERY OF THE UTILITY MODEL
The utility model aims at a C arm X-ray machine direction perspective locator that can fix a position in vitro.
In order to realize the above-mentioned purpose, the utility model provides a C arm X-ray machine direction perspective locator, including mobile device and laser emission device, mobile device includes two plane moving mechanism of parallel from top to bottom, one plane moving mechanism includes a movable block and drives the X axle moving mechanism and the drive that the movable block removed along the X axle the Y axle moving mechanism that the Y axle removed is followed to the movable block, laser emission device includes laser head and laser pipe, the upper and lower both ends of laser pipe are connected two respectively through joint ball bearing on the movable block, the laser head is installed the lower extreme of laser pipe, two be equipped with at least three plane sign on the plane moving mechanism respectively, and three the plane sign is not located same straight line, be equipped with central sign on the movable block.
Preferably, the X-axis moving mechanism includes a first guide rail frame, a first motor, a first lead screw connected to the first motor, and a first lead screw nut sleeved on the first lead screw, the first guide rail frame is parallel to the Y-axis, one end of the first guide rail frame is connected to the first lead screw nut, and the upper portion of the moving block is slidably sleeved in the first guide rail frame;
the Y-axis moving mechanism comprises a second guide rail frame, a second motor, a second lead screw connected with the second motor and a second lead screw nut sleeved on the second lead screw, the second guide rail frame is parallel to the X axis, one end of the second guide rail frame is connected to the second lead screw nut, and the lower portion of the moving block is slidably sleeved in the first guide rail frame.
Preferably, the connecting frame comprises two rectangular frames and four connecting columns which are parallel up and down, two ends of each connecting column are connected with four corners of each rectangular frame respectively, two ends of each first guide rail frame are connected with two opposite side edges of each rectangular frame in a sliding mode respectively, and two ends of each second guide rail frame are connected with two other opposite side edges of each rectangular frame in a sliding mode respectively.
Preferably, the first guide rail frame and the second guide rail frame both include an upper frame and a lower frame which are arranged in parallel and oppositely, the upper frame and the lower frame are separated by a certain distance to form a slide way, and two sides of the moving block are provided with slide blocks which are connected with the slide way in a sliding manner.
Preferably, a moving block of the planar moving mechanism located above is taken as a first moving block, a moving block of the planar moving mechanism located below is taken as a second moving block, the upper end and the lower end of the laser tube are respectively connected to the central positions of the first moving block and the second moving block, a central mark of the first moving block is arranged at the central position of the first moving block, and the second moving block is provided with four central marks which are uniformly arranged around the central circumference of the second moving block.
Preferably, the first moving block is provided with a first bearing seat for mounting the joint ball bearing, the first bearing seat is mounted on the lower portion of the first moving block, a center mark of the first moving block is arranged on the upper end face of the first moving block, the second moving block is provided with a second bearing seat for mounting another joint ball bearing, a mounting through hole is arranged at the center position of the second moving block, the second bearing seat is mounted in the mounting through hole, and the center mark of the second moving block is arranged on the lower end face of the second moving block.
Preferably, the plane mark of the upper plane moving mechanism is provided on the first rail frame of the plane moving mechanism, and the plane mark of the lower plane moving mechanism is provided on the second rail frame of the plane moving mechanism.
Preferably, the plane marks of the upper plane moving mechanism include a first plane mark, a second plane mark and a third plane mark, the first plane mark and the second plane mark are located on the same straight line parallel to the Y axis, and the second plane mark and the third plane mark are located on the same straight line parallel to the X axis; the plane mark of the plane moving mechanism positioned below comprises a fourth plane mark, a fifth plane mark and a sixth plane mark, the fourth plane mark and the fifth plane mark are positioned on the same straight line parallel to the X axis, and the fifth plane mark and the sixth plane mark are positioned on the same straight line parallel to the Y axis.
Preferably, the moving block, the first guide rail frame, the second guide rail frame and the connecting frame are made of carbon fiber material bodies which are not developed under X-rays, and the plane mark and the center mark are made of lead material bodies which are developed under X-rays.
Compared with the prior art, the utility model discloses a C arm X-ray machine direction perspective locator, its beneficial effect lies in:
1. the utility model discloses a set up the plane sign on plane moving mechanism, can obtain the proportion that this plane was thrown through actual distance between the plane sign and the distance of plane sign on the monitor, and set up the movable block that can X axle removal and Y axle removal, coordinate through the target focus that obtains on the monitor of measuring, through the distance that the projection ratio converts into the movable block removal, the straight line that the target focus is located can be confirmed to two movable blocks, laser irradiation through the laser head transmission is on the patient, can accurately find the body surface position of target focus, realize external location, it is quick accurate.
2. The utility model discloses a central sign setting of first movable block is put on the central point of up end, whether this central sign of accessible coincides with the origin of coordinates of monitor and calibrates whether first movable block aligns, and the lower extreme of second movable block need set up the laser head, therefore can't set up central sign at its central point, the second movable block set up around the even central sign that sets up of its central circumference, can calibrate through the coordinate detection at the monitor, and succinctly convenient, and quick accuracy.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of the C-arm X-ray machine guiding perspective positioner according to the embodiment of the present invention.
Fig. 3 is a schematic connection diagram of a moving block according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a center mark of the first moving block according to the embodiment of the present invention.
Fig. 5 is a schematic diagram of a center mark of the second moving block according to the embodiment of the present invention.
Fig. 6 is a schematic view of a second guide frame of the upper plane movement mechanism according to the embodiment of the present invention.
Fig. 7 is a schematic view of a first guide rail frame of the lower plane moving mechanism according to the embodiment of the present invention.
Fig. 8 is a schematic connection diagram of the positioner in the embodiment in a C-arm X-ray machine.
In the figure, 1, a laser tube; 2. a first guide rail frame; 3. a first motor; 4. a first lead screw; 5. a first lead screw nut; 6. a second guide rail frame; 7. a second motor; 8. a second lead screw; 9. a second feed screw nut; 10. a rectangular frame; 11. connecting columns; 12. putting the frame on; 13. a lower frame; 14. a slideway; 15. a slider; 16. a first moving block; 17. a second moving block; 1701. mounting a through hole; 18. a second bearing housing; 19. a center mark; 20. a first plane identifier; 21. a second plane identifier; 22. a third plane identifier; 23. a fourth plane mark; 24. a fifth plane mark; 26. a sixth plane mark; 27. an X-ray emitter; 28. an image intensifier; 29. a locator.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "X axis" and "Y axis" used in the present invention are two mutually perpendicular directions on the same plane, and the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses set up based on the concentric circles principle. Since the refractive index of X-rays in different media is 1, X-rays propagate linearly in different media, the X-ray beam emitted from the X-ray emitter is conical, and can be regarded as being composed of successive coaxial circles which are gradually enlarged, assuming three points on any three parallel coaxial circular planes on the cone, if the three points are overlapped on the X-ray projection sheet, the three points are necessarily on the same straight line, and the three points correspond to the positions of the respective circles (the same angle as the centers of the respective circles, proportional to the distance), and vice versa. As shown in FIG. 1, point O is the X-ray source point, point B is the laser source point, the plane on which A, A 'is located is the upper plane, and the plane on which B, B' is located is the lower plane (i.e., the plane on which the laser source is located). Setting the initial laser beam as BO, moving the laser light source point from B to B 'and simultaneously moving the other point A where the laser beam passes to A', so that the coaxial laser beam of A 'B' is superposed with the X-ray, and the laser point can be hit on the target body along the direction of the laser beam, thereby achieving the purpose of navigation and positioning. For any point on a plane parallel to the horizontal plane, the two components in X, Y directions can be decomposed, and the target point can be reached through the motion of X, Y axis.
As shown in fig. 2, the utility model discloses a C arm X-ray machine direction perspective locator 29 of preferred embodiment, including mobile device and laser emission device, mobile device includes two plane moving mechanism of parallel arrangement from top to bottom, a plane moving mechanism includes a movable block and drives the X axle moving mechanism that the movable block removed along the X axle and drive the Y axle moving mechanism that the movable block removed along the Y axle, laser emission device includes laser head and laser pipe 1, the upper and lower both ends of laser pipe 1 are connected on two movable blocks through joint ball bearing respectively, the lower extreme at laser pipe 1 is installed to the laser head, be equipped with at least three plane sign on two plane moving mechanism respectively, three plane sign is not located same straight line, be equipped with central sign 19 on the movable block. The plane identification is arranged on the plane moving mechanism, the projected proportion of the plane can be obtained through the actual distance of the plane identification and the distance of the plane identification on the monitor, the moving blocks capable of moving along the X axis and the Y axis are arranged, the coordinates of the target focus obtained through measurement on the monitor are converted into the moving distance of the moving blocks through the projection proportion, the straight line where the target focus is located can be determined through the two moving blocks, laser emitted by the laser head irradiates on a patient, the body surface position of the target focus can be accurately found, in-vitro positioning is realized, and the positioning is rapid and accurate. As shown in fig. 8, the C-arm X-ray machine includes an X-ray emitter 27 and an image intensifier 28, and a positioner 29 of the present embodiment is installed below the image intensifier 28 of the C-arm X-ray machine.
Further, the X-axis moving mechanism of the present embodiment includes a first guide rail frame 2, a first motor 3, a first lead screw 4 connected to the first motor 3, and a first lead screw nut 5 sleeved on the first lead screw 4, one end of the first guide rail frame 2 is connected to the first lead screw nut 5, and the upper portion of the moving block is slidably sleeved in the first guide rail frame 2; the Y-axis moving mechanism comprises a second guide rail frame 6, a second motor 7, a second lead screw 8 connected with the second motor 7 and a second lead screw nut 9 sleeved on the second lead screw 8, one end of the second guide rail frame 6 is connected to the second lead screw nut 9, and the lower part of the moving block is slidably sleeved in the first guide rail frame 2. The first motor 3 works to drive the first lead screw 4 to rotate, and drives the first lead screw nut 5 to move along the first lead screw 4, so as to drive the first guide rail frame 2 to move along the X axis, and because the lower part of the moving block is sleeved in the second guide rail frame 6, therefore, the first guide rail frame 2 drives the moving block to move along the X axis, and meanwhile, the moving block slides on the second guide rail frame 6, and similarly, the Y-axis moving mechanism also works.
In addition, the positioner of this embodiment further includes a connecting frame, the connecting frame includes two rectangular frames 10 and four connecting columns 11 that are parallel from top to bottom, four corners of two rectangular frames 10 are connected respectively to two ends of four connecting columns 11, two ends of first guide rail frame 2 are connected on two opposite sides of rectangular frame 10 slidably respectively, two ends of second guide rail frame 6 are connected on two other opposite sides of rectangular frame 10 slidably respectively. Through setting up the link, can provide the installation basis for X axle moving mechanism and Y axle moving mechanism to can be for the removal direction, spacing of first guide rail frame 2 and second guide rail frame 6.
As shown in fig. 3, the first guide rail frame 2 and the second guide rail frame 6 of this embodiment both include an upper frame 12 and a lower frame 13 that are arranged in parallel and oppositely, the upper frame 12 and the lower frame 13 form a slide way 14 at a certain distance, the two sides of the moving block are provided with sliders 15 that are slidably connected to the slide way 14, the moving block can be embedded in the guide rail frame, so that the upper end surface and the lower end surface of the moving block are flush with the guide rail frame, and further, the center mark 19 on the moving block and the plane mark on the guide rail frame are located on the same plane, thereby ensuring accurate positioning, and reducing errors caused by the fact that the center mark 19 and the plane mark are not located on the same plane.
As shown in fig. 4 and 5, the moving block of the upper planar movement mechanism is referred to as a first moving block 16, the moving block of the lower planar movement mechanism is referred to as a second moving block 17, the first moving block 16 and the second moving block 17 of the present embodiment are both rectangular blocks, the upper end and the lower end of the laser tube 1 are respectively connected to the central positions of the first moving block 16 and the second moving block 17, the central mark 19 of the first moving block 16 is provided at the central position of the first moving block 16, the second moving block 17 is provided with four central marks 19, and the four central marks 19 are uniformly arranged around the central circumference of the second moving block 17.
Further, a first bearing seat (not shown) for mounting an articulated ball bearing is provided on the first moving block 16, the first bearing seat is mounted on a lower portion of the first moving block 16, a center mark 19 of the first moving block 16 is provided on an upper end surface of the first moving block 16, a second bearing seat 18 for mounting another articulated ball bearing is provided on the second moving block 17, a mounting through hole 1701 is provided at a center position of the second moving block 17, the second bearing seat 18 is mounted in the mounting through hole 1701, and the center mark 19 of the second moving block 17 is provided on a lower end surface of the second moving block 17.
As shown in fig. 6 and 7, the plane marks of the upper plane moving mechanism are provided on the first rail frame 2 of the plane moving mechanism, and the plane marks of the lower plane moving mechanism are provided on the second rail frame 6 of the plane moving mechanism so that the plane marks of the two plane moving mechanisms do not overlap. The plane mark of the upper plane moving mechanism of the present embodiment is provided on the upper side of the upper frame 12 of the first guide frame 2 of the plane moving mechanism, and the plane mark of the lower plane moving mechanism is provided on the lower side of the lower frame 13 of the second guide frame 6 of the plane moving mechanism.
Further, the plane marks of the above-located plane movement mechanism include a first plane mark 20, a second plane mark 21, and a third plane mark 22, the first plane mark 20 and the second plane mark 21 are located on the same straight line parallel to the Y axis, and the second plane mark 21 and the third plane mark 22 are located on the same straight line parallel to the X axis; the plane marks of the plane moving mechanism positioned below comprise a fourth plane mark 23, a fifth plane mark 24 and a sixth plane mark 25, the fourth plane mark 23 and the fifth plane mark 24 are positioned on the same straight line parallel to the X axis, the fifth plane mark 24 and the sixth plane mark 25 are positioned on the same straight line parallel to the Y axis, and the X-axis and Y-axis projection ratio of the plane on the monitor can be measured through the X-axis and Y-axis distances between the two marks.
In addition, the moving block, the first guide frame 2, the second guide frame 6 and the connecting frame of the present embodiment all use carbon fiber material bodies which are not developed under X-rays, and the plane mark and the center mark 19 all use lead material bodies which are developed under X-rays, so that the visual interference caused by the development of various objects on the monitor is prevented, and the center mark 19 and the plane mark can be ensured to be developed on the monitor.
The utility model discloses a working process does: a coordinate system is established on a monitor, the first moving block 16 and the second moving block 17 are reset and moved to the central position, calibration is performed on the monitor by judging whether the central mark 19 of the first moving block 16 is overlapped with the origin of coordinates of the monitor, and calibration of the second moving block 17 is performed by judging whether the coordinates of the four central marks 19 of the second moving block 17 on the monitor are consistent with the same distance. After calibration, the X-ray generator is started, each plane mark is projected onto the monitor, a projection proportion is obtained according to the actual distance between the plane marks on the same plane and the distance on the monitor, the distances of the first moving block 16 and the second moving block 17 moving in the X-axis and Y-axis directions are converted according to the coordinates and the projection proportion of the target focus on the monitor, the first motor 3 and the second motor 7 are started, the first moving block 16 and the second moving block 17 are moved, after the target focus is moved in place, the laser head on the laser light 1 works to emit laser, the laser irradiates on the skin of a human body, the body surface position of the target focus can be obtained, in-vitro positioning is achieved, and the device is accurate and convenient.
To sum up, the embodiment of the utility model provides a C arm X-ray machine direction perspective locator, its this embodiment is through setting up the plane sign on plane moving mechanism, can obtain the proportion that this plane was thrown through the actual distance of plane sign and the distance of plane sign on the monitor, and set up the movable block that can X axle remove and Y axle remove, through the coordinate of the target focus that obtains on the monitor, through throwing the distance that the proportion converts the movable block into and remove, the straight line that the target focus is located can be confirmed to two movable blocks, laser irradiation through the laser head transmission is on the patient, can accurately find the body surface position of target focus, realize external location, it is quick accurate.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (8)
1. A C-arm X-ray machine guide perspective positioner is characterized by comprising a moving device and a laser emission device, wherein the moving device comprises two plane moving mechanisms which are arranged in parallel up and down, one of the plane moving mechanisms comprises a moving block, an X-axis moving mechanism which drives the moving block to move along an X axis and a Y-axis moving mechanism which drives the moving block to move along a Y axis, the laser emission device comprises a laser head and a laser tube, the upper end and the lower end of the laser tube are respectively connected to the two moving blocks through joint ball bearings, the laser head is installed at the lower end of the laser tube, at least three plane marks are respectively arranged on the two plane moving mechanisms, the three plane marks are not positioned on the same straight line, and a center mark is arranged on the moving block; the X-axis moving mechanism comprises a first guide rail frame, a first motor, a first lead screw connected with the first motor and a first lead screw nut sleeved on the first lead screw, the first guide rail frame is parallel to the Y axis, one end of the first guide rail frame is connected to the first lead screw nut, and the upper part of the moving block is slidably sleeved in the first guide rail frame;
the Y-axis moving mechanism comprises a second guide rail frame, a second motor, a second lead screw connected with the second motor and a second lead screw nut sleeved on the second lead screw, the second guide rail frame is parallel to the X axis, one end of the second guide rail frame is connected to the second lead screw nut, and the lower portion of the moving block is slidably sleeved in the first guide rail frame.
2. The C-arm X-ray machine guide perspective positioner according to claim 1, further comprising a connecting frame, wherein the connecting frame comprises two rectangular frames and four connecting columns which are parallel up and down, two ends of the four connecting columns are respectively connected with four corners of the two rectangular frames, two ends of the first guide rail frame are respectively slidably connected on two opposite sides of the rectangular frames, and two ends of the second guide rail frame are respectively slidably connected on the other two opposite sides of the rectangular frames.
3. The C-arm X-ray machine guide perspective positioner according to claim 1, wherein the first guide rail frame and the second guide rail frame comprise an upper frame and a lower frame which are oppositely arranged in parallel, the upper frame and the lower frame are separated by a certain distance to form a slide way, and two sides of the moving block are provided with slide blocks which are slidably connected with the slide way.
4. The C-arm X-ray machine guiding perspective positioner according to claim 3, wherein a moving block of the planar moving mechanism located above is recorded as a first moving block, a moving block of the planar moving mechanism located below is recorded as a second moving block, upper and lower ends of the laser tube are respectively connected to central positions of the first moving block and the second moving block, a center mark of the first moving block is arranged at the central position of the first moving block, four center marks are arranged on the second moving block, and the four center marks are uniformly arranged around the center of the second moving block in the circumferential direction.
5. The C-arm X-ray machine guiding perspective positioner according to claim 4, wherein a first bearing seat for mounting the joint ball bearing is arranged on the first moving block, the first bearing seat is mounted on a lower portion of the first moving block, a center mark of the first moving block is arranged on an upper end face of the first moving block, a second bearing seat for mounting another joint ball bearing is arranged on the second moving block, a mounting through hole is arranged at a center position of the second moving block, the second bearing seat is mounted in the mounting through hole, and the center mark of the second moving block is arranged on a lower end face of the second moving block.
6. The C-arm X-ray machine guide perspective positioner according to claim 5, wherein the plane mark of the upper plane moving mechanism is disposed on the first guide rail frame of the plane moving mechanism, and the plane mark of the lower plane moving mechanism is disposed on the second guide rail frame of the plane moving mechanism.
7. The C-arm X-ray machine guide perspective positioner according to claim 6, wherein the plane marks of the upper plane moving mechanism comprise a first plane mark, a second plane mark and a third plane mark, the first plane mark and the second plane mark are positioned on the same straight line parallel to the Y axis, and the second plane mark and the third plane mark are positioned on the same straight line parallel to the X axis; the plane mark of the plane moving mechanism positioned below comprises a fourth plane mark, a fifth plane mark and a sixth plane mark, the fourth plane mark and the fifth plane mark are positioned on the same straight line parallel to the X axis, and the fifth plane mark and the sixth plane mark are positioned on the same straight line parallel to the Y axis.
8. The C-arm X-ray machine guide perspective positioner according to claim 2, wherein the moving block, the first guide rail frame, the second guide rail frame and the connecting frame are made of carbon fiber materials which are not developed under X-rays, and the plane mark and the center mark are made of lead materials which are developed under X-rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922393683.2U CN212140457U (en) | 2019-12-26 | 2019-12-26 | Guiding perspective positioner of C-arm X-ray machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922393683.2U CN212140457U (en) | 2019-12-26 | 2019-12-26 | Guiding perspective positioner of C-arm X-ray machine |
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| CN212140457U true CN212140457U (en) | 2020-12-15 |
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| CN201922393683.2U Active CN212140457U (en) | 2019-12-26 | 2019-12-26 | Guiding perspective positioner of C-arm X-ray machine |
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Address after: 528318 No.39 Donghua Road, Longjiang Town, Shunde District, Foshan City, Guangdong Province Patentee after: Foshan Shunde District Fifth People's Hospital (Foshan Shunde District Longjiang Hospital) Country or region after: China Address before: 528318 No.39 Donghua Road, Longjiang Town, Shunde District, Foshan City, Guangdong Province Patentee before: THE THIRD AFFILIATED HOSPITAL OF GUANGDONG MEDICAL University (FOSHAN SHUNDE LONGJIANG Hospital) Country or region before: China |