CN217659913U - CT scanning bed and positioning device thereof - Google Patents
CT scanning bed and positioning device thereof Download PDFInfo
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- CN217659913U CN217659913U CN202221435590.7U CN202221435590U CN217659913U CN 217659913 U CN217659913 U CN 217659913U CN 202221435590 U CN202221435590 U CN 202221435590U CN 217659913 U CN217659913 U CN 217659913U
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Abstract
The utility model discloses a CT scanning bed and positioner thereof. The positioning device comprises a base plate which is fixed on a mounting surface and used for placing a CT scanning bed; the four lifting adjusting components are respectively arranged at four preset angular positions of the CT scanning bed and movably connected with the base plate, and each lifting adjusting component can drive the CT scanning bed to move back and forth along a first direction so as to adjust the position of the CT scanning bed in the first direction, the rotation angle around a second direction and the rotation angle around a third direction; two horizontal adjustment subassemblies set up on the backing plate to be located the both sides of CT scanning bed respectively, two horizontal adjustment subassemblies can drive CT scanning bed along second direction reciprocating motion or along the reciprocating motion of third direction, with the turned angle around the first direction in the position of second direction, in the position of third direction and around the CT scanning bed. The positioning device can realize high-precision adjustment of 6 degrees of freedom, so that the CT scanning bed can be accurately adjusted to a preset position.
Description
Technical Field
The utility model relates to a positioner of CT scanning bed still relates to the CT scanning bed including this positioner simultaneously, belongs to medical instrument technical field.
Background
CT (Computed Tomography) is an abbreviation for Computed Tomography. The CT detector utilizes the precisely collimated X-rays and the like to perform cross-section scanning around a certain part of a human body together with the CT detector with extremely high sensitivity, has the characteristics of short scanning time, clear images and the like, and can be used for checking various diseases. At present, the CT apparatus has become one of indispensable tools in medical diagnosis.
When CT scanning is carried out, the placing position of a CT scanning bed has very high requirements, and the quality of CT scanning imaging is related. The position adjustment of the existing CT scanning bed needs to depend on a level bar, so that the number of tools is increased, and the burden of installation personnel is increased.
In the Chinese invention application with the application number of 201611179734.6, an adjustable radiation-proof bed for CT scanning is disclosed, which comprises a bed body, wherein the bed body comprises a pair of support shafts arranged at intervals, a plurality of arched blocking covers are arranged above the support shafts, two ends of each blocking cover are respectively provided with a sliding sleeve, the sliding sleeves are sleeved on the pair of support shafts, and the sliding sleeves can slide along the axial direction of the support shafts; and a support plate is arranged between the sliding sleeves at the two ends of each blocking cover and is positioned below the support shaft. This radiation bed can carry out effectual cover and protection to the position that need not scan on the examinee's health pertinence through adjustment, the combination to different fender cover positions, and it is tighter than current safeguard measure, and can thoroughly accomplish on the examinee's body each part homoenergetic and carry out effective protection.
Disclosure of Invention
The utility model aims to solve the technical problem that the utility model provides a positioner of CT scanning bed is provided first of all.
Another technical problem to be solved by the present invention is to provide a CT scanning bed.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
according to the utility model discloses an aspect provides a positioner of CT scanning bed, include:
the backing plate is fixed on the mounting surface and used for placing the CT scanning bed;
the four lifting adjusting components are respectively arranged at four preset angular positions of the CT scanning bed and movably connected with the base plate, and each lifting adjusting component can drive the CT scanning bed to move back and forth along a first direction so as to adjust the position of the CT scanning bed in the first direction, the rotation angle around a second direction and the rotation angle around a third direction; wherein the first direction is the height direction of the CT scanning bed, the second direction is the length direction of the CT scanning bed, and the third direction is the width direction of the CT scanning bed;
two horizontal adjustment subassemblies set up in on the backing plate, and be located respectively CT scanning bed's both sides, two horizontal adjustment subassemblies can drive CT scanning bed is followed second direction reciprocating motion or edge third direction reciprocating motion is in order to adjust CT scanning bed is in the position of second direction, in the position of third direction and around the turned angle of first direction.
Wherein preferably, the lift adjustment assembly comprises:
the adjusting screw is in threaded connection with a preset angular position of the CT scanning bed and is provided with a hollow inner cavity;
the countersunk head screw penetrates through the hollow inner cavity and is fixedly connected with the base plate so that the adjusting screw rod and the countersunk head screw can move relatively in the moving space of the hollow inner cavity;
the first nut is connected with the countersunk head screw so as to limit the relative movement of the countersunk head screw and the adjusting screw rod or remove the position limitation of the countersunk head screw.
Wherein preferably, the lift adjustment assembly further comprises:
and the second nut is connected with the adjusting screw rod so as to limit the relative position of the adjusting screw rod and the CT scanning bed or release the position limitation of the adjusting screw rod.
Preferably, a plurality of first grooves are formed in the outer wall of the adjusting screw rod protruding out of the CT scanning bed and used for being matched with the hook wrench;
and a plurality of second grooves are formed in the outer wall of the second nut and used for being matched with the hook wrench.
Preferably, one end of the countersunk head screw, which is far away from the base plate, is provided with a flat position so as to limit the rotation of the countersunk head screw by clamping the flat position.
Preferably, the horizontal adjusting assembly comprises:
the adjusting bracket is arranged on the backing plate and is provided with an accommodating groove for accommodating the protruding part at one side of the CT scanning bed;
the two first adjusting screw rods respectively penetrate through two sides of the adjusting bracket along the third direction, and can move back and forth along the third direction so as to jointly abut against the protruding part to move back and forth along the third direction;
and the second adjusting screw rod penetrates through the adjusting support along the second direction and can reciprocate along the second direction so as to abut against the protruding part to be far away from the adjusting support along the second direction.
Preferably, the base plate and the adjusting bracket are integrally formed.
Preferably, the CT scanning bed further comprises a horizontal bead arranged on one side of the CT scanning bed for detecting the levelness of the CT scanning bed.
Preferably, the backing plate is fixed on the mounting surface by a plurality of expansion screws.
According to a second aspect of the embodiments of the present invention, a CT scanning bed is provided, which comprises the above positioning device.
The utility model discloses following technological effect has:
the embodiment of the utility model provides a CT scanning bed and positioner thereof realizes 6 degree of freedom high accuracy through lift adjustment subassembly cooperation level adjustment subassembly and adjusts, makes CT scanning bed can accurate adjustment to predetermined position. And the positioning device has compact structure, simplicity, reliability and lower manufacturing cost. In addition, the cooperation of lift adjustment subassembly and horizontal pearl is used, need not to realize the level (l) ing with the help of extra level bar.
Drawings
Fig. 1 is a schematic view of an overall structure of a positioning device of a CT scanning bed according to an embodiment of the present invention;
FIG. 2 is a schematic view of the connection between the backing plate and the expansion screw according to the embodiment of the present invention;
fig. 3 is an exploded view of the lift adjustment assembly in an embodiment of the present invention;
fig. 4 is a schematic view of a partial structure of the horizontal adjustment assembly and the CT scanning bed according to the embodiment of the present invention.
Detailed Description
The technical content of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides a positioning device of CT scanning bed for carry out the position control of a plurality of degrees of freedom (for example 6) to the CT scanning bed. For convenience of description, the positioning device of the CT scanning table is exemplified in the present embodiment, but this does not limit the present invention. Therefore, the embodiment of the utility model provides a positioning device can also be applied to other medical beds, for example: operating tables, patient beds, etc.
As shown in fig. 1, the positioning device provided by the embodiment of the present invention includes a base plate 1, four lifting adjusting assemblies 2 and two horizontal adjusting assemblies 3. Wherein the base plate 1 is fixed on a mounting surface (for example, the ground) for placing the CT scanning bed 100. The four lifting adjusting components 2 are respectively arranged at four preset angular positions (four corners of the CT scanning bed 100 in this embodiment) of the CT scanning bed 100 and movably connected with the backing plate 1, and each lifting adjusting component 2 can drive the CT scanning bed 100 to reciprocate along the first direction so as to adjust the position of the CT scanning bed 100 in the first direction, the rotation angle around the second direction and the rotation angle around the third direction. The first direction is a height direction of the CT scanning bed (i.e., a Z direction in fig. 1), the second direction is a length direction of the CT scanning bed (i.e., an X direction in fig. 1), and the third direction is a width direction of the CT scanning bed (i.e., a Y direction in fig. 1). The two horizontal adjusting components 3 are arranged on the base plate 1 and are respectively located on two sides of the CT scanning bed 100, and each horizontal adjusting component 3 can drive the CT scanning bed 100 to reciprocate along the second direction or reciprocate along the third direction so as to adjust the position of the CT scanning bed 100 in the second direction, the position of the CT scanning bed in the third direction and the rotation angle of the CT scanning bed around the first direction.
In the present embodiment, each of the lifting adjustment assemblies 2 can adjust the height of a corresponding corner of the CT scanning table 100. For convenience of description, in the present embodiment, the four lifting adjustment assemblies 2 are labeled as A, B, C, D, and when A, B, C, D and the four lifting adjustment assemblies 2 simultaneously ascend or descend, the CT scanning bed 100 can be driven to ascend or descend, so that the height of the CT scanning bed 100 (i.e., the position adjustment in the Z direction) is realized, and the CT scanning bed 100 can be in a horizontal state by adjusting the heights of the four corners. When A, D and B, C rise and fall simultaneously, the CT scanning bed 100 rotates counterclockwise around the Y direction; conversely, when the A, D two lifting adjusting assemblies 2 descend simultaneously and the B, C two lifting adjusting assemblies 2 ascend simultaneously, the CT scanning bed 100 rotates clockwise around the Y direction, so as to realize the angle adjustment of the CT scanning bed 100 around the Y direction. When A, B and C, D both lift adjusting assemblies 2 ascend at the same time, the CT scanning bed 100 rotates counterclockwise around the X direction; conversely, when the A, B two lifting adjusting assemblies 2 descend simultaneously and the C, D two lifting adjusting assemblies 2 ascend simultaneously, the CT scanning bed 100 rotates clockwise around the X direction, so as to realize the angle adjustment of the CT scanning bed 100 around the X direction.
In addition, in this embodiment, two horizontal adjusting components 3 are located on two sides of the CT scanning bed in the X direction, each horizontal adjusting component 3 can drive the CT scanning bed 100 to reciprocate along the Y direction, and simultaneously, the two horizontal adjusting components 3 can drive the CT scanning bed 100 to reciprocate along the X direction together. Therefore, when the two horizontal adjusting assemblies 3 simultaneously drive the CT scanning bed 100 to move along the Y direction, the whole CT scanning bed 100 moves along the Y direction; on the contrary, when the two horizontal adjusting assemblies 3 simultaneously drive the CT scanning bed 100 to move along the opposite direction of the Y direction, the whole CT scanning bed 100 moves along the opposite direction of the Y direction, thereby realizing the position adjustment of the CT scanning bed 100 along the Y direction. In fig. 1, when the horizontal adjusting component 3 on the left side drives the CT scanning bed 100 to move along the Y direction, and the horizontal adjusting component 3 on the right side drives the CT scanning bed 100 to move along the opposite direction of the Y direction, the whole CT scanning bed 100 rotates counterclockwise around the Z direction; on the contrary, when the horizontal adjusting component 3 on the left side drives the CT scanning bed 100 to move along the opposite direction of the Y direction, and the horizontal adjusting component 3 on the right side drives the CT scanning bed 100 to move along the Y direction, the whole CT scanning bed 100 rotates clockwise around the Z direction, so as to realize the angle adjustment of the CT scanning bed 100 around the Z direction. When the two horizontal adjusting components 3 simultaneously drive the CT scanning bed 100 to move along the X direction, the whole CT scanning bed 100 moves along the X direction; on the contrary, when the two horizontal adjusting assemblies 3 simultaneously drive the CT scanning bed 100 to move along the opposite direction of the X direction, the whole CT scanning bed 100 moves along the opposite direction of the X direction, thereby realizing the position adjustment of the CT scanning bed 100 along the X direction.
In this embodiment, the four lifting adjusting assemblies 2 are matched with the two horizontal adjusting assemblies 3 to realize the position adjustment of 6 degrees of freedom of the CT scanning bed 100 (namely, the position adjustment along the X direction, the Y direction and the Z direction, and the angle adjustment around the X direction, the Y direction and the Z direction). Therefore, the CT scanning bed 100 can be adjusted to any position according to the requirement to meet the use requirements of different conditions.
In the above embodiment, as shown in fig. 1, the backing plate 1 is two, and each backing plate 1 is fixed on the mounting surface by two expansion screws 4. The expansion screw 4 is a conventional connecting member, and will not be described in detail herein, as shown in fig. 2, in the specific installation, a mounting hole is formed on the mounting surface, and the expansion screw 4 is placed in the mounting hole after passing through a through hole on the cushion plate 1, so that the cushion plate 1 is fixed on the mounting surface by screwing a nut on the expansion screw 4. Therefore, the material consumption of the backing plate 1 can be reduced, and the production cost is saved. Of course, in other embodiments, a whole mat 1 may be integrally laid on the installation surface and connected and fixed to the installation surface by the expansion screws 4.
As shown in fig. 3, in the above embodiment, the elevation adjustment assembly 2 includes the adjustment screw 21, the countersunk screw 22, the first nut 23, and the second nut 24. Specifically, the outer wall of the adjusting screw 21 is provided with an external thread, and correspondingly, a threaded hole is formed in the preset angular position of the CT scanning bed 100, so that the adjusting screw 21 can be connected to the preset angular position of the CT scanning bed 100 in a threaded manner, and one corner of the CT scanning bed 100 is driven to ascend or descend by rotating the adjusting screw 21. Furthermore, the adjusting screw 21 has a hollow inner cavity 211 for providing a moving space for the position adjustment of the CT scanning table 100.
The countersunk head screw 22 is inserted into the hollow inner cavity 211 and is connected and fixed with the backing plate 1, and in this embodiment, the inner diameter of the hollow inner cavity 211 is larger than the outer diameter of the countersunk head screw 22, so that when the countersunk head screw 22 is not tightened, the countersunk head screw 22 and the adjusting screw 21 can move relatively in the moving space of the hollow inner cavity 211, thereby adjusting the position of the CT scanning bed 100.
The first nut 23 is connected to the countersunk screw 22 for fixing the position of the countersunk screw 22. When the first nut 23 is screwed up clockwise through the spacer 231, the countersunk screw 22 and the adjusting screw 21 cannot move relatively, and at this time, the CT scanning bed 100 cannot adjust the position; conversely, when the first nut 23 is loosened counterclockwise, the countersunk screw 22 and the adjusting screw 21 can move relatively, and at this time, the position of the CT scanning bed 100 can be adjusted.
The second nut 24 is connected to the adjusting screw 21 for limiting the relative position of the adjusting screw 21 and the CT scanning table 100 or releasing the position limitation of the adjusting screw 21. It can be understood that, since the threaded connection of the adjusting screw 21 and the CT scanning bed 100 inevitably has a connection gap, if the two are not defined in position, the CT scanning bed 100 is unstable, thereby affecting the CT scanning effect. In this embodiment, the second nut 24 is added to the adjusting screw 21, so that the position of the adjusting screw 21 and the CT scanning bed 100 is defined by the second nut, so as to improve the stability of the CT scanning bed 100 after adjustment.
In the above embodiment, preferably, the adjusting screw 21 protrudes out of the outer wall of the CT scanning bed 100 and is provided with a plurality of first grooves 212 for matching with a hook wrench. And, a plurality of second grooves 241 are opened on the outer wall of the second nut 24 for matching with the hook wrench. Wherein, colluding the spanner for the common instrument in this field, do not describe here in detail, can be convenient for utilize colluding the spanner to twist adjusting screw 21 through setting up a plurality of first slots 212, and similarly, can be convenient for utilize colluding the spanner to twist second nut 24 through setting up a plurality of second slots 241 to improve the convenience to CT scanning bed 100 position control.
Furthermore, in the above embodiment, it is preferable that the end of the countersunk-head screw 22 away from the shim plate 1 has the flat position 221, so that the rotation of the countersunk-head screw 22 is limited by clamping the flat position 221. When the nut is used, the flat part 221 can be clamped by a tool (such as pliers), so that the first nut 23 can be conveniently screwed, and the phenomenon of 'thread slipping' is avoided.
As shown in fig. 4, in the above embodiment, the horizontal adjustment assembly 3 includes the adjustment bracket 31, two first adjustment screws 32, and one third adjustment screw 33. Specifically, the adjusting bracket 31 is disposed on the backing plate 1 and has a receiving slot 311 for receiving the protrusion 110 at one side of the CT scanning bed 100. The adjusting bracket 311 in this embodiment is a U-shaped bracket, and may be integrally formed with the pad 1, or may be mounted on the pad 1, so as to provide a mounting base for the first adjusting screw 32 and the third adjusting screw 33.
The two first adjusting screws 32 are respectively inserted into two sides of the adjusting bracket 31 along a third direction (i.e., the Y direction). Specifically, the first adjusting screw 32 includes a first adjusting bolt 321 and a first adjusting nut 322, and the adjusting bracket 31 has bolt holes respectively formed at two sides in the Y direction, and the first adjusting bolt 321 is screwed in the bolt holes, so that the protruding portion 110 is pushed to move in the Y direction or the direction opposite to the Y direction by screwing the adjusting bolt 321. Since the protruding portion 110 and the CT scanning bed 100 are of an integral structure, the movement of the protruding portion 110 correspondingly drives the CT scanning bed to reciprocate along the Y direction. The first adjusting nut 322 is screwed on the first adjusting bolt 321, and after the first adjusting bolt 321 is adjusted in place, the first adjusting bolt 321 is fixed on the side wall of the adjusting bracket 31, so as to ensure the stability of the CT scanning bed 100 after adjustment.
The second adjusting screw 33 penetrates through the adjusting bracket 31 along a second direction (i.e., the X direction), and can move back and forth along the second direction to abut against the protruding portion 110 to move away from the adjusting bracket 31 along the second direction. In this embodiment, the structure of the second adjusting screw 33 is the same as that of the first adjusting screw 32, and is not described herein again. As shown in fig. 1, since the CT scanning bed 100 is provided with the horizontal adjusting assemblies 3 on both sides in the X direction, when the second adjusting screw 33 on the left side pushes the protrusion 110 to move in the X direction, the second adjusting screw 33 on the right side also needs to move in the X direction, so that the whole CT scanning bed moves in the X direction; conversely, when the second adjusting screw 33 on the left side moves in the opposite direction of the X direction, the second adjusting screw 33 on the right side also needs to push the protrusion 110 to move in the opposite direction of the X direction, so that the whole CT scanning bed moves in the opposite direction of the X direction. Therefore, the position of the whole CT scanning bed in the X direction is adjusted by the cooperation of the two horizontal adjusting assemblies 3.
As shown in fig. 1, in the above embodiment, the positioning device further includes a horizontal bead 5, and the horizontal bead 5 is disposed at one side of the CT scanning bed 100 for detecting the levelness of the CT scanning bed 100. In the present embodiment, the horizontal beads 5 are disposed on both sides of the CT scanning bed 100, so as to detect whether the CT scanning bed 100 is in a horizontal state after being adjusted, and provide a visual judgment basis for a user.
On the basis of the above-mentioned embodiment, the embodiment of the utility model provides a CT scanning bed is still provided, and this CT scanning bed includes above-mentioned positioner to can carry out the regulation of 6 degrees of freedom to the CT scanning bed.
To sum up, the embodiment of the utility model provides a CT scanning bed and positioner thereof realizes 6 degree of freedom high accuracy through 2 cooperation horizontal adjusting part 3 of lift adjusting part and adjusts, makes CT scanning bed 100 can accurate adjustment to predetermined position. And the positioning device has compact structure, simplicity, reliability and lower manufacturing cost. In addition, the cooperation of lift adjustment subassembly 2 and horizontal pearl 5 is used, need not to realize the level (l) ing with the help of extra level bar.
The CT scanning bed and the positioning device thereof provided by the present invention have been described in detail above. Any obvious modifications thereto, which would occur to one skilled in the art and which would not depart from the essence of the invention, would constitute a violation of the patent rights and would bear corresponding legal obligations.
Claims (10)
1. A positioning device of a CT scanning bed is characterized by comprising:
the backing plate is fixed on the mounting surface and used for placing the CT scanning bed;
the four lifting adjusting components are respectively arranged at four preset angular positions of the CT scanning bed and movably connected with the base plate, and each lifting adjusting component can drive the CT scanning bed to move back and forth along a first direction so as to adjust the position of the CT scanning bed in the first direction, the rotation angle of the CT scanning bed around a second direction and the rotation angle of the CT scanning bed around a third direction; wherein the first direction is the height direction of the CT scanning bed, the second direction is the length direction of the CT scanning bed, and the third direction is the width direction of the CT scanning bed;
two horizontal adjustment subassemblies set up in on the backing plate, and be located respectively CT scanning bed's both sides, two horizontal adjustment subassemblies can drive CT scanning bed is followed second direction reciprocating motion or edge third direction reciprocating motion is in order to adjust CT scanning bed is in the position of second direction, in the position of third direction and around the turned angle of first direction.
2. The positioning apparatus of claim 1, wherein said lift adjustment assembly comprises:
the adjusting screw is in threaded connection with a preset angular position of the CT scanning bed and is provided with a hollow inner cavity;
the countersunk head screw penetrates through the hollow inner cavity and is fixedly connected with the base plate so that the adjusting screw rod and the countersunk head screw can move relatively in the moving space of the hollow inner cavity;
the first nut is connected with the countersunk head screw so as to limit the relative movement of the countersunk head screw and the adjusting screw rod or remove the position limitation of the countersunk head screw.
3. The positioning device of claim 2, wherein: the lift adjustment assembly further includes:
and the second nut is connected with the adjusting screw rod so as to limit the relative position of the adjusting screw rod and the CT scanning bed or release the position limitation of the adjusting screw rod.
4. A positioning device according to claim 3, characterized in that:
a plurality of first grooves are formed in the outer wall, protruding out of the CT scanning bed, of the adjusting screw rod and used for being matched with the hook wrench;
and a plurality of second grooves are formed in the outer wall of the second nut and used for being matched with the hook wrench.
5. The positioning apparatus of claim 2, wherein:
one end of the countersunk head screw, which is far away from the base plate, is provided with a flat position so as to limit the rotation of the countersunk head screw by clamping the flat position.
6. The positioning apparatus of claim 1, wherein said level adjustment assembly comprises:
the adjusting bracket is arranged on the backing plate and is provided with an accommodating groove for accommodating the protruding part at one side of the CT scanning bed;
the two first adjusting screw rods respectively penetrate through two sides of the adjusting bracket along the third direction, and can move back and forth along the third direction so as to jointly abut against the protruding portion to move back and forth along the third direction;
and the second adjusting screw rod penetrates through the adjusting support along the second direction and can reciprocate along the second direction so as to abut against the protruding part to be far away from the adjusting support along the second direction.
7. The positioning device of claim 6, wherein:
the base plate and the adjusting bracket are integrally formed.
8. The positioning apparatus according to claim 1, further comprising a horizontal bead disposed at a side of the CT scanning bed for detecting a levelness of the CT scanning bed.
9. The positioning device of claim 1, wherein:
the backing plate is fixed on the mounting surface through a plurality of expansion screws.
10. A CT scanning table comprising a positioning device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221435590.7U CN217659913U (en) | 2022-06-08 | 2022-06-08 | CT scanning bed and positioning device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221435590.7U CN217659913U (en) | 2022-06-08 | 2022-06-08 | CT scanning bed and positioning device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217659913U true CN217659913U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221435590.7U Active CN217659913U (en) | 2022-06-08 | 2022-06-08 | CT scanning bed and positioning device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN217659913U (en) |
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2022
- 2022-06-08 CN CN202221435590.7U patent/CN217659913U/en active Active
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