CN219126402U - CBCT device - Google Patents

Abstract

The utility model provides a CBCT device, which comprises a scanner main body, a bed plate and a supporting piece, wherein the bed plate is integrally connected with the scanner main body through the supporting piece, so that the positions of the bed plate and the scanner main body do not need to be corrected in the processes of scanning, carrying and the like, and the CBCT device is convenient to install; in addition, the supporting pieces comprise a first supporting piece and a second supporting piece, a lifting device is arranged between the first supporting piece and the second supporting piece, the position of the bed board can be adjusted through the lifting device, and the accuracy is high; in addition, in the CBCT device provided by the utility model, no metal supporting structure exists in the scanning range, so that clear and artifact-free images can be obtained, a large-volume external bracket is not needed for a bed plate in the CBCT device, the occupied area is small, and the manufacturing cost is saved.

Description

CBCT device

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a CBCT device.

Background

Cone-beam Computed Tomography, CBCT is a novel CT technique with wide application prospect. The CBCT apparatus includes two parts of a scanner main body and a push-pull bed, in the prior art, the scanner main body and the push-pull bed are not of an integral structure, therefore, the installation position of the push-pull bed needs to be adjusted to match with the scanner main body in the scanning process, and when the CBCT apparatus is carried, the push-pull bed and the scanner main body need to be carried separately, and when the CBCT apparatus is reinstalled, the positions of the two need to be corrected again, so that the problem of complex installation exists. In addition, because the metal is not needed in the scanning range, the push-pull bed can only use carbon fiber materials, and in order to keep the structural strength of the CBCT device, the push-pull bed is supported by a large-volume external bracket, and has large occupied area, heavy weight and high manufacturing cost.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present utility model provides a CBCT apparatus, which includes a scanner main body, a couch board and a support member, wherein the couch board is integrally connected with the scanner main body through the support member, so that the positions of the couch board and the scanner main body do not need to be corrected during the processes of scanning, transporting, etc., thereby facilitating installation; in addition, the supporting pieces comprise a first supporting piece and a second supporting piece, a lifting device is arranged between the first supporting piece and the second supporting piece, the position of the bed board can be adjusted through the lifting device, and the accuracy is high; in addition, in the CBCT device provided by the utility model, no metal supporting structure exists in the scanning range, so that clear and artifact-free images can be obtained, a large-volume external bracket is not needed for a bed plate in the CBCT device, the occupied area is small, and the manufacturing cost is saved.

To achieve the above and other related objects, the present utility model provides a CBCT apparatus comprising:

a scanner body having a scanning chamber therein extending in a first direction, and having support members provided at both ends of the scanning chamber in the first direction;

the bed plate is arranged in the scanning cavity and is connected with the scanner main body through the supporting piece;

the support piece comprises a first support piece and a second support piece, wherein the first support piece is fixedly connected with the scanner main body, the second support piece is fixedly connected with the bed board, a lifting device is arranged between the first support piece and the second support piece and used for pushing the second support piece, so that the second support piece drives the bed board to lift in the vertical direction.

Optionally, the bed board extends along the first direction, the second support member extends along a second direction perpendicular to the first direction, and two ends of the second support member are provided with clamping plates for enabling the bed board to move along the first direction.

Optionally, the clamping plate is provided with a deep groove ball bearing, and the deep groove ball bearing is tangential to the side wall of the bed plate, so that the bed plate moves along the first direction.

Optionally, a cam bearing follower is further arranged on the clamping plate and is used for limiting the position of the bed plate.

Optionally, the lifting device is an electric push rod.

Optionally, the electric push rod is connected with the first support piece and the second support piece respectively through a hinge pin.

Optionally, the first support piece with connect through the guiding axle between the second support piece, the guiding axle includes first guiding axle and second guiding axle, just first guiding axle with the second guiding axle is with elevating gear symmetry, the guiding axle is used for stabilizing the bed board is at the level of in-process of going up and down.

Optionally, the second support member is connected with the bed board through a connecting member, and the connecting member is located right above the lifting device.

The CBCT device provided by the utility model has at least the following beneficial effects:

the CBCT device provided by the utility model comprises a scanner main body, a bed plate and a supporting piece, wherein the bed plate is integrally connected with the scanner main body through the supporting piece, so that the positions of the bed plate and the scanner main body do not need to be corrected in the processes of scanning, carrying and the like, and the CBCT device is convenient to install; in addition, the supporting pieces comprise a first supporting piece and a second supporting piece, a lifting device is arranged between the first supporting piece and the second supporting piece, the position of the bed board can be adjusted through the lifting device, and the accuracy is high; in addition, in the CBCT device provided by the utility model, no metal supporting structure exists in the scanning range, so that clear and artifact-free images can be obtained, a large-volume external bracket is not needed for a bed plate in the CBCT device, the occupied area is small, and the manufacturing cost is saved.

Drawings

Fig. 1 shows a schematic structure of a CBCT apparatus according to an embodiment.

Fig. 2 shows a front view of a couch plate and a support in the CBCT apparatus provided for an embodiment.

Fig. 3 shows a side view of a couch plate and a support in a CBCT apparatus provided for an embodiment.

Fig. 4 is a schematic structural view of a clamping plate in the CBCT apparatus according to the embodiment.

Fig. 5 shows a schematic view of the lowest position of the couch plate in the CBCT apparatus according to the embodiment.

Fig. 6 shows a schematic view of the top of the bed plate in the CBCT apparatus according to the embodiment.

Description of element reference numerals

10. Scanner main body

20. Bed board

100. Scanning chamber

30. Support member

31. First support piece

32. Second support piece

40. Lifting device

50. Hinge pin

61. First guide shaft

62. Second guide shaft

63. Linear bearing

64. Stop plate

70. Clamping plate

71. Deep groove ball bearing

72. Cam bearing follower

80. Connecting piece

81. Connecting hole

82. Nut

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

It should be noted that, the illustrations provided in the present embodiment only illustrate the basic concept of the present utility model by way of illustration, but only the components related to the present utility model are shown in the illustrations, rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number, positional relationship and proportion of each component in actual implementation may be changed at will on the premise of implementing the present technical solution, and the layout of the components may be more complex.

Examples

The present embodiment provides a CBCT apparatus, which includes a scanner main body 10, a couch plate 20, and a support 30, as shown with reference to fig. 1 and 2.

Referring to fig. 1 and 2, the scanner body 10 has therein a scanning chamber 100 extending in a first direction (X-axis direction shown in fig. 1), and in the first direction (X-axis direction shown in fig. 1), both ends of the scanning chamber 100 are provided with supports 30.

As shown in fig. 2, the supporting member 30 includes a first supporting member 31 and a second supporting member 32, wherein the first supporting member 31 is fixedly connected with the scanner main body 10, the second supporting member 32 is fixedly connected with the bed board 20, and a lifting device 40 is disposed between the first supporting member 31 and the second supporting member 32, and the lifting device 40 is used for pushing the second supporting member 32, so that the second supporting member 32 drives the bed board 20 to lift in the vertical direction (the Z-axis direction shown in fig. 2). In the operation of the CBCT apparatus provided in this embodiment, the lifting device may be coupled to a central controller (not shown in the drawings) through a motor, and the central controller simultaneously controls the lifting devices 40 disposed at both ends of the scanning chamber 100, so that the bed board 20 is lifted in a state of being kept horizontal. In this embodiment, the lifting device 40 is an electric push rod, as shown in fig. 3, the electric push rod is connected to the first support 31 and the second support 32 through hinge pins 50, and in other alternative embodiments, the lifting device 40 may be another device capable of achieving a lifting function.

As shown in fig. 2, the first supporting member 31 and the second supporting member 32 are connected by a guide shaft, the guide shaft includes a first guide shaft 61 and a second guide shaft 62, and the first guide shaft 61 and the second guide shaft 62 are symmetrical with respect to the lifting device 40, in this embodiment, a linear bearing 63 is fixed on the first supporting member 31 using a stopper piece 64, and the first guide shaft 61 and the second guide shaft 62 are sleeved in the linear bearing 63 and fixedly connected with the second supporting member 32 by a hinge pin 50. In the present embodiment, when the electric push rod is extended and retracted, the first guide shaft 61 and the second guide shaft 62 are raised or lowered in synchronization with the electric push rod so that the bed plate 20 is maintained horizontal during the lifting process.

As shown in fig. 1, the couch 20 is disposed in the scan chamber 100, and is connected to the scanner body 10 via the support 30, and in this embodiment, the couch 20 is a carbon fiber couch. As an example, the bed plate 20 extends in a first direction (X-axis direction shown in fig. 1), the second support 32 extends in a second direction (Y-axis direction shown in fig. 1) perpendicular to the first direction, and as shown in fig. 2, both ends of the second support 32 are provided with clamping plates 70 for moving the bed plate 20 in the first direction (X-axis direction shown in fig. 1).

Referring to fig. 2 and 4, the clamp plate 70 is provided with a deep groove ball bearing 71, and the deep groove ball bearing 71 is tangent to a side wall of the bed plate 20 so that the bed plate 20 can move in a first direction (X-axis direction shown in fig. 1). The clamping plates 70 are further provided with cam bearing followers 72, in this embodiment, four cam bearing followers 72 are provided on each clamping plate 70, and the four cam bearing followers 72 are symmetrically distributed above and below the deep groove ball bearings 71 in pairs for limiting the position of the bed plate 20, so that the bed plate 20 is kept horizontal in the process of moving along the first direction.

As shown in fig. 2, the second supporting member 32 is fixedly connected with the bed board 20 through the connecting member 80, and the connecting member 80 is located right above the lifting device 40, so that a certain supporting effect can be achieved on the bed board 20 while a connecting effect is achieved. In this embodiment, the surface of the connecting piece 80 is provided with a connecting hole 81, and the connecting hole 81 is of a strip structure, so that the connecting piece 80 can be adjusted up and down by adjusting the position of the nut 82 in the connecting hole 81, thereby ensuring the stability of the bed board 20 when bearing weight and ensuring that a sufficiently clear image is obtained by scanning.

The working principle of the CBCT apparatus provided in this embodiment is as follows:

first, an object to be photographed is placed on the extended couch 20, and the couch 20 is pushed into the scan chamber 100 to place the object to be photographed within the scan range. Next, considering the problems of the scanning field of view and the imaging definition, the height of the bed board 20 is adjusted to make the object to be photographed be at a proper position, specifically, the lifting devices 40 at two ends of the scanning chamber 100 are controlled by the motor linked with the central controller to synchronously lift the lifting devices 40, so as to drive the bed board 20 to lift, the schematic diagram of the bed board 20 at the lowest position is shown in fig. 5, and the schematic diagram at the highest position is shown in fig. 6. In the lifting process of the bed board 20, the first guide shaft 61 and the second guide shaft 62 are driven to synchronously lift so as to keep the bed board 20 horizontal in the lifting process.

The CBCT device provided by the embodiment comprises a scanner main body, a bed plate and a supporting piece, wherein the bed plate is integrally connected with the scanner main body through the supporting piece, so that the positions of the bed plate and the scanner main body do not need to be corrected in the processes of scanning, carrying and the like, and the CBCT device is convenient to install; in addition, the supporting pieces comprise a first supporting piece and a second supporting piece, a lifting device is arranged between the first supporting piece and the second supporting piece, the position of the bed board can be adjusted through the lifting device, and the accuracy is high; in addition, in the CBCT device provided by the utility model, no metal supporting structure exists in the scanning range, so that clear and artifact-free images can be obtained, a large-volume external bracket is not needed for a bed plate in the CBCT device, the occupied area is small, and the manufacturing cost is saved.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (8)

1. A CBCT apparatus, comprising:

a scanner body having a scanning chamber therein extending in a first direction, and having support members provided at both ends of the scanning chamber in the first direction;

the bed plate is arranged in the scanning cavity and is connected with the scanner main body through the supporting piece;

the support piece comprises a first support piece and a second support piece, wherein the first support piece is fixedly connected with the scanner main body, the second support piece is fixedly connected with the bed board, a lifting device is arranged between the first support piece and the second support piece and used for pushing the second support piece, so that the second support piece drives the bed board to lift in the vertical direction.

2. The CBCT device of claim 1, wherein the couch plate extends in the first direction, the second support extends in a second direction perpendicular to the first direction, and clamping plates are provided at both ends of the second support for moving the couch plate in the first direction.

3. The CBCT device of claim 2, wherein the clamp plate is provided with a deep groove ball bearing, the deep groove ball bearing being tangential to a side wall of the bed plate to move the bed plate in the first direction.

4. A CBCT device according to claim 3, wherein the clamping plate is further provided with a cam bearing follower for defining the position of the bed plate.

5. The CBCT device of claim 1, wherein the lifting device is an electric push rod.

6. The CBCT device of claim 5, wherein the electric push rod is connected to the first support and the second support via hinge pins, respectively.

7. The CBCT device of claim 1, wherein the first support member and the second support member are connected by a guide shaft, the guide shaft comprises a first guide shaft and a second guide shaft, and the first guide shaft and the second guide shaft are symmetrical with respect to the lifting device, and the guide shaft is used for stabilizing the level of the bed plate during lifting.

8. The CBCT device of claim 7, wherein the second support is connected to the bed plate by a connector located directly above the lifting device.

Images