CN209751075U

CN209751075U - CBCT equipment

Info

Publication number: CN209751075U
Application number: CN201920152509.6U
Authority: CN
Inventors: 吴警; 尹海文
Original assignee: Kauwa Kerr Dental Medical Instruments (suzhou) Co Ltd
Current assignee: Kauwa Kerr Dental Medical Instruments (suzhou) Co Ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2019-12-10
Anticipated expiration: 2029-01-29

Abstract

The utility model relates to a CBCT equipment, include: a bulb moving device capable of freely moving; the bulb tube can be arranged on the bulb tube moving device in a lifting manner; a probe moving device capable of freely moving; and the detector can be arranged on the detector moving device in a lifting way. The utility model discloses do not need the combination of multidimension motion structure, and only need once fix a position the patient, can obtain the three mode formation of image of 3D PAN/CEPH.

Description

CBCT equipment

Technical Field

The utility model relates to a CBCT equipment.

Background

CBCT is short for Cone beam CT, i.e., Cone beam CT. As the name suggests, cone-beam projection computed tomography apparatus, the principle is that an X-ray generator makes a circular digital projection (DR) around a projection with a low dose. And then recombining data obtained in the intersection after multiple digital projection around the projection body in a computer to obtain a three-dimensional image. The projection principle of CBCT acquisition data is completely different from that of conventional sector scan CT, and the algorithm principle of later computerized reconstruction is similar. The oral CBCT is mainly used for the oral outpatient service, has the advantages of clear images, high resolution, less reconstruction time, capability of eliminating the waiting trouble and the like, has the most reasonable imaging range, and can obtain the full-oral double-dentition three-dimensional image by one-time scanning.

In a traditional three-in-one CBCT device, three imaging functions of panorama (also called PAN), 3D and cranial position (also called CEPH) are generally integrated, and when the three imaging functions are in a 3D/PAN imaging mode, the distance between a required bulb and a detector is relatively short, namely about 600 mm; in the CEPH imaging mode, the distance between the required bulb and the detector is far, about 1800 mm. Therefore, the current CBCT apparatus generally uses two bulbs, which are disposed at different positions for the above three imaging modes. In traditional trinity CBCT equipment, in order to satisfy the different distance demands of different imaging modes, need use two bulb pipes at least, then the cost increases.

In addition, when 3D, PAN and CEPH scanning is carried out, the motions of the detector and the bulb in three scanning modes are different, and the tracks are complex, traditionally, various complex tracks are realized by combined control through 3 ~ 5 dimensional motion, and therefore a plurality of linear motion or rotary motion structures are needed, the structure is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is to provide a CBCT apparatus that does not require a combination of multidimensional motion structures and only needs to position a patient once to obtain 3D/PAN/CEPH three-mode imaging.

the utility model discloses a CBCT equipment, include:

a bulb moving device capable of freely moving;

The bulb tube can be arranged on the bulb tube moving device in a lifting manner;

A probe moving device capable of freely moving; and

the detector can be arranged on the detector moving device in a lifting mode.

According to the utility model discloses, only possess single bulb and single detector, but carry bulb and detector respectively through two mobile device that freely move, then make up out the orbit of the various modes of needs through 2 mobile device's free motion, make all freely movable of bulb and detector to realize 3D PAN CEPH's scanning. The distance between the bulb and the detector can be conveniently adjusted because the bulb is placed on the freely moving device; and because the multi-dimensional movement structure combination is not needed, the structure is very simple and the cost is lower. Meanwhile, the patient can be positioned at the same position in the three imaging modes of 3D/PAN/CEPH, and the three-mode imaging of 3D/PAN/CEPH can be obtained only by positioning the patient once, so that when several imaging modes are required, only one detector and one bulb tube are needed, and the time and the cost can be saved.

Preferably, the bulb moving device has a base, a pulley disposed at the bottom of the base, and a bulb lifting mechanism fixed on the base, and the bulb is fixed on the bulb lifting mechanism.

Preferably, the pulley is an omni-wheel.

preferably, the bulb tube lifting mechanism is a multi-layer sleeve guiding lifting mechanism.

Preferably, the detector moving device is provided with a base, a pulley arranged at the bottom of the base, and a detector lifting mechanism fixed on the base, and the detector is fixed on the detector lifting mechanism.

Preferably, the pulley is an omni-wheel.

Preferably, the detector lifting mechanism is a multi-layer sleeve-guided lifting mechanism.

Preferably, a seat with a positioning system is also included.

Preferably, the positioning system comprises: the lower jaw positioning support comprises a supporting rod connected to the seat, a handle rod positioned on the supporting rod and a lower jaw positioning support arranged at the upper end of the handle rod.

the foregoing and other objects, features and advantages of the invention will be better understood from the following detailed description taken in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a perspective view of a CBCT apparatus according to an embodiment of the present invention;

FIG. 2 is a perspective view of the CBCT apparatus of the present invention in a 3D imaging mode;

FIG. 3 is a perspective view of the CBCT apparatus of the present invention in the PAN imaging mode;

Fig. 4 is a perspective view of the CBCT apparatus of the present invention in the CEPH imaging mode.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following embodiments, which are to be understood as illustrative and not restrictive.

Fig. 1 is a perspective view of a CBCT apparatus according to an embodiment of the present invention. The CBCT apparatus can support three types of modes, i.e., 3D/PAN/CEPH imaging modes, in which the patient is co-located and only one detector and one bulb need be used.

Specifically, as shown in fig. 1, in the present embodiment, the CBCT apparatus includes a seat 1 having a positioning system, a bulb 2, a detector 3, a bulb moving device 4, and a detector moving device 5. In the present embodiment, the bulb moving device 4 and the probe moving device 5 are carriages that can move freely.

In the embodiment shown in fig. 1, the chair 1 with the positioning system may include a support bar 11 attached to the chair, a handle bar 13 positioned on the support bar, and a mandible positioning tray 12 at the upper end of the handle bar 13. Wherein, the lower jaw positioning support 12 is used for supporting the lower jaw of the patient, and the handle bar 13 is used for the patient to hold by hand to ensure the stability of the upper body. Of course, standing positions may also be used.

As also shown in fig. 1, the bulb moving device 4 and the detector moving device 5 are respectively used for lifting the bulb and the detector, and respectively carry the bulb and the detector to move, and the functions are the same. Preferably, the bulb moving device 4 and the probe moving device 5 may be the same size, and thus may have the same structure. Only the bulb moving device 4 will be described below, and the probe moving device 5 is the same.

As shown in fig. 1, the bulb moving device 4 includes a base 41, pulleys 421 provided at four corners of the bottom of the base 41, pulleys 422, 423, and 424, and a bulb raising and lowering mechanism 43 fixed to the base 41. The bulb 2 is fixed to the bulb elevating mechanism 43. As shown in fig. 3, the bulb elevating mechanism 43 can support the bulb and can move in the vertical direction, so as to drive the bulb 2 to move in the vertical direction. The pulley 421, the pulley 422, the pulley 423, and the pulley 424 can move in any direction on the horizontal plane, thereby moving the base 41, the bulb lifting mechanism 43, and the bulb 2 in the horizontal direction. Because the common sliding is only suitable for the front and the rear rollers, the requirement of arbitrary movement in the horizontal direction cannot be met. In the present embodiment, the pulleys 421, 422, 423, and 424 are preferably omni wheels (also called mecanum wheels). Each pulley is controlled in its movement by a respective motor. A control circuit board may be mounted in the base 41 to control the movement of the motor. The tube lifting mechanism 43 can drive the tube to lift to satisfy different heights of people. The specific structure of the bulb tube lifting mechanism can be various, and in this embodiment, the bulb tube lifting mechanism adopts a jacking mechanism guided by a plurality of layers (for example, three layers as shown in fig. 1). Other specific structures are not described herein in detail as long as the bulb can be driven to lift.

As shown in fig. 2, in the 3D imaging mode, the lower jaw of the patient is placed on the lower jaw positioning support 12, and then the bulb elevating mechanism 43 and the probe elevating mechanism 53 are automatically elevated to a reasonable position according to the height of the head of the patient. The vertical height of the bulb 2 and the probe 3 is determined. The bulb moving means 4 and the detector moving means 5 are moved to the initial position and the distance between the bulb 2 and the detector 3 is preferably set at 600mm so that the X-ray emitted from the bulb is irradiated to the detector. After exposure is started, the two moving devices 4 and 5 are controlled reasonably and respectively, so that the bulbs on the moving devices 4 and 5 and the detectors rotate around the patient in a certain track under the condition of keeping the relative distance unchanged. Thereby obtaining a 3D image. The movement means 4, 5 may be controlled by their respective internal control circuit boards.

As shown in fig. 3, if imaging in PAN mode is required, without moving the patient, the two mobile devices 4 and 5 are reasonably controlled to respectively carry the ball tube and the detector to move to the initial position in PAN mode, and after exposure is started, the control circuit boards inside the mobile devices 4 and 5 can control the movement of the motors to realize that the two mobile devices 4 and 5 move according to the track required by PAN mode under the condition of keeping the relative distance of 600mm preferred by the ball tube 2 and the detector 3 unchanged.

After the PAN imaging mode is finished, if imaging in the CEPH mode is required, the patient does not need to move to the initial position in the CEPH mode by reasonably controlling the two moving devices 4 and 5 to respectively carry the bulb and the detector, and the distance between the bulb 2 and the detector 3 is preferably adjusted to 1800 mm. After exposure is started, the movement of the motors can be controlled by the control circuit boards in the moving devices 4 and 5, so that the two moving devices 4 and 5 move according to the track required by the CEPH mode under the condition of keeping the relative distance of 1800mm, which is preferred by the bulb 2 and the detector 3, unchanged.

The present invention may be embodied in several forms without departing from the spirit of the essential characteristics thereof, and the embodiments are therefore to be considered in all respects as illustrative and not restrictive, since the scope of the invention is defined by the appended claims rather than by the description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A CBCT apparatus, comprising:

a bulb moving device capable of freely moving;

A probe moving device capable of freely moving; and

The detector can be arranged on the detector moving device in a lifting mode.

2. The CBCT apparatus of claim 1, wherein the bulb moving device has a base, a pulley provided at a bottom of the base, and a bulb lifting mechanism fixed to the base, the bulb being fixed to the bulb lifting mechanism.

3. The CBCT apparatus of claim 2, wherein the pulley is an omni-wheel.

4. The CBCT apparatus of claim 2, wherein the bulb elevator mechanism is a multi-tiered sleeve guided jack mechanism.

5. The CBCT apparatus of claim 1, wherein the detector moving device has a base, a pulley disposed at a bottom of the base, and a detector lifting mechanism fixed to the base, the detector being fixed to the detector lifting mechanism.

6. the CBCT apparatus of claim 5, wherein the pulley is an omni-wheel.

7. the CBCT apparatus of claim 5, wherein the detector lifting mechanism is a multi-tiered sleeve guided jacking mechanism.

8. The CBCT apparatus of any of claims 1-7, further comprising a seat with a positioning system.

9. The CBCT apparatus of claim 8, wherein the positioning system comprises: the lower jaw positioning support comprises a supporting rod connected to the seat, a handle rod positioned on the supporting rod and a lower jaw positioning support arranged at the upper end of the handle rod.