CN-122004908-A - X-ray emission regulation and control mechanism for three-dimensional reconstruction, double-suspension DR and use method

CN122004908ACN 122004908 ACN122004908 ACN 122004908ACN-122004908-A

Abstract

The invention discloses an X-ray emission regulation and control mechanism for three-dimensional reconstruction, a double-suspension DR and a use method thereof, relating to the technical field of medical imaging equipment, comprising an X-ray emission mechanism, a control box, a rotating mechanism, a lifting mechanism and a linkage mechanism, wherein the X-ray emission mechanism is used for generating and emitting X-rays; the X-ray emitting mechanism is electrically connected with the control box and used for receiving external instructions and regulating and controlling the emitting parameters of X-rays, the rotating mechanism is used for bearing the X-ray emitting mechanism and driving the X-ray emitting mechanism to rotate so as to realize multi-angle X-ray emission, the lifting mechanism is used for bearing the control box and driving the control box to lift, and the linkage mechanism is respectively in transmission connection with the rotating mechanism and the lifting mechanism, so that when the rotating mechanism drives the X-ray emitting mechanism to rotate, the linkage mechanism synchronously drives the lifting mechanism to drive the control box to lift so as to avoid the rotating path of the X-ray emitting mechanism, effectively reduce the volume of equipment and promote the scanning angle range and imaging quality of three-dimensional reconstruction.

Inventors

Ji Xiancai
LIANG CHEN

Assignees

山东康威智能医疗科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260408

Claims (10)

1. An X-ray emission control mechanism for three-dimensional reconstruction, comprising: An X-ray emitting mechanism for generating and emitting X-rays; the control box is electrically connected with the X-ray emission mechanism and is used for receiving external instructions and regulating and controlling emission parameters of X-rays; the rotating mechanism is used for bearing the X-ray emitting mechanism and driving the X-ray emitting mechanism to rotate so as to realize multi-angle X-ray emission; the lifting mechanism is used for bearing the control box and driving the control box to lift and fall, and And the linkage mechanism is respectively in transmission connection with the rotating mechanism and the lifting mechanism, so that when the rotating mechanism drives the X-ray emitting mechanism to rotate, the linkage mechanism synchronously drives the lifting mechanism to drive the control box to lift so as to avoid the rotating path of the X-ray emitting mechanism.
2. The X-ray emission control mechanism for three-dimensional reconstruction according to claim 1, wherein the X-ray emission control mechanism comprises a bulb and a beam limiter coaxially connected with the bulb, and the bulb is mounted on the rotating mechanism and can rotate around the axis of the bulb under the drive of the rotating mechanism.
3. The X-ray emission control mechanism for three-dimensional reconstruction according to claim 2, wherein the rotating mechanism comprises a mounting seat, a pipe hoop, a sector gear, a driving motor, a speed reducer and a first gear, the mounting seat is used for being in transmission connection with one telescopic suspension arm of the suspension type DR, the outer ring of the pipe hoop is fixedly connected to the mounting seat, the ball tube is sleeved in the pipe hoop and is fixedly connected with the inner ring of the pipe hoop, the sector gear is fixedly connected with the inner ring of the pipe hoop, the driving motor and the speed reducer are fixedly connected with the mounting seat, an output shaft of the driving motor is in transmission connection with the first gear through the speed reducer, the first gear is in meshed connection with the sector gear, one end of the linkage mechanism is in transmission connection with the sector gear, and the other end of the linkage mechanism is in transmission connection with the lifting mechanism so as to convert rotation of the sector gear into lifting movement of the lifting mechanism.
4. The X-ray emission control mechanism for three-dimensional reconstruction of claim 2, wherein the lifting mechanism comprises a fixed back plate, a rack, a connecting plate and a limit sliding block, the fixed back plate is used for installing the control box, a limit sliding groove is formed in one side of the fixed back plate, which is far away from the control box, the rack is fixedly connected to one side of the fixed back plate, which is far away from the control box, one end of the connecting plate is fixedly connected with the pipe clamp, the other end of the connecting plate is fixedly connected with the limit sliding block, and the limit sliding block is used for being slidingly connected in the limit sliding groove; The linkage mechanism comprises a gear mounting frame, a second gear, a third gear, a transmission shaft and a fourth gear, wherein the gear mounting frame is fixedly connected with the pipe hoop, the second gear is rotationally connected with the gear mounting frame, two ends of the transmission shaft are respectively fixedly connected with the third gear and the fourth gear, the transmission shaft is rotationally connected with the gear mounting frame, the second gear is meshed with the sector gear, the third gear is meshed with the second gear, the fourth gear is meshed with the rack, the second gear is used for enabling the rotary motion of the sector gear to sequentially pass through the third gear, the transmission shaft and the fourth gear to be transmitted to the rack, and accordingly the fixed backboard and the control box mounted on the fixed backboard are driven to move along the limiting chute in a lifting mode.
5. The X-ray emission control mechanism for three-dimensional reconstruction as set forth in claim 4, wherein the limit sliding groove is a T-shaped groove or a dovetail groove, and the limit sliding block has a T-shaped section or a dovetail section adapted to the limit sliding groove.
6. The X-ray emission control mechanism for three-dimensional reconstruction as set forth in claim 4, wherein a central angle of said sector gear is 90 degrees to 200 degrees.
7. The X-ray emission control mechanism for three-dimensional reconstruction as set forth in claim 2, wherein the rotation mechanism further comprises a connecting shaft having one end fixedly connected to the mounting base and the other end for driving connection with a telescopic boom of the suspension type DR.
8. A double-suspension DR is characterized by comprising an X-ray emission regulating mechanism for three-dimensional reconstruction, a transverse moving guide rail, a horizontal rotating mechanism, a longitudinal moving guide rail, a first telescopic suspension arm, a second telescopic suspension arm, a first posture adjusting mechanism, a second posture adjusting mechanism and a flat panel detector, wherein the transverse moving guide rail is arranged on an indoor roof, a fixed end of the horizontal rotating mechanism is slidably connected to the transverse moving guide rail and can keep the position after moving, a rotating end of the horizontal rotating mechanism is slidably connected to the longitudinal moving guide rail and can keep the position after moving, the top ends of the first telescopic suspension arm and the second telescopic suspension arm are slidably connected to the longitudinal moving guide rail and can keep the position after sliding, a telescopic end at the bottom of the first telescopic suspension arm is in transmission connection with the X-ray emission mechanism for three-dimensional reconstruction through the first posture adjusting mechanism so as to adjust the horizontal position and the pitching angle of the X-ray emission mechanism, and a telescopic end at the bottom of the second telescopic suspension arm is in transmission connection with the flat panel detector through the second posture adjusting mechanism so as to generate a digital image, and the X-ray emission detector is in transmission position and the flat panel detector.
9. The dual-suspension DR of claim 8 wherein said first attitude adjustment mechanism comprises a first horizontal swivel bearing and a first vertical swivel bearing, wherein the fixed end of said first horizontal swivel bearing is fixedly connected to the telescoping end of the bottom of said first telescoping boom, the swivel end of said first horizontal swivel bearing is fixedly connected to the fixed end of said first vertical swivel bearing, the swivel end of said first vertical swivel bearing is fixedly connected to said X-ray emission control mechanism for three-dimensional reconstruction, said second attitude adjustment mechanism comprises a second horizontal swivel bearing, a second vertical swivel bearing and a swing mechanism, the fixed end of said second horizontal swivel bearing is fixedly connected to the telescoping end of the bottom of said second telescoping boom, the swivel end of said second horizontal swivel bearing is fixedly connected to the fixed end of said second vertical swivel bearing, the swivel end of said second vertical swivel bearing is fixedly connected to the fixed end of said swing mechanism, and the swing end of said swing mechanism is fixedly connected to said flat panel detector.
10. A method of use based on a double-suspended DR as claimed in any one of claims 8 to 9 comprising the steps of: Step S1, initial positioning, namely adjusting the integral position of the longitudinal moving guide rail through the transverse moving guide rail and the horizontal rotating mechanism according to the checking position of a patient, so that the X-ray emitting mechanism and the flat panel detector are approximately aligned to a checking area, respectively adjusting the vertical heights of the X-ray emitting mechanism and the flat panel detector through the first telescopic suspension arm and the second telescopic suspension arm to enable the X-ray emitting mechanism and the flat panel detector to be at proper shooting distances, respectively adjusting the horizontal positions and the pitching angles of the X-ray emitting mechanism and the flat panel detector through the first gesture adjusting mechanism and the second gesture adjusting mechanism, and enabling the emitting direction of the X-ray emitting mechanism to be vertically opposite to the receiving surface of the flat panel detector; and S2, three-dimensional reconstruction scanning, namely enabling the horizontal rotating mechanism to drive the longitudinal moving guide rail to rotate around a vertical axis so that the X-ray emission regulating mechanism and the flat panel detector synchronously do circular motion or specific track motion around a part to be scanned of a patient, enabling the rotating mechanism to start to drive the X-ray emission mechanism to rotate in a large angle to realize multi-angle X-ray emission in the process, enabling the flat panel detector to synchronously perform angle adjustment by the second posture adjusting mechanism, guaranteeing collinear precision of the X-ray emission angle and the center of the flat panel detector, enabling the working process linkage mechanism to synchronously transmit rotation of the rotating mechanism to the lifting mechanism, realizing lifting of a control box, avoiding a rotating path of the X-ray emission mechanism in real time, avoiding spatial interference, enabling the flat panel detector to synchronously receive X-ray projection data in different angles, and transmitting the data to an image processing workstation.

Description

X-ray emission regulation and control mechanism for three-dimensional reconstruction, double-suspension DR and use method Technical Field The invention relates to the technical field of medical imaging equipment, in particular to an X-ray emission regulation and control mechanism for three-dimensional reconstruction, a double-suspension DR and a use method. Background In the field of medical image diagnosis, a suspended Digital Radiography (DR) system has become an essential device in clinical radiodiagnosis by virtue of its flexible spatial layout and convenient operation. Along with the deep development of the precise medical concept, the clinical diagnosis requirement on the lesion site is changed from the traditional two-dimensional plane imaging to the three-dimensional structure imaging, and the spatial position, morphological characteristics and adjacent relation of the lesion tissue are expected to be obtained through the three-dimensional reconstruction technology so as to improve the accuracy and the comprehensiveness of diagnosis. In order to meet the three-dimensional imaging requirement, part of high-end DR systems begin to explore to acquire multi-view projection data through the cooperative motion of the bulb tube and the flat panel detector, so that three-dimensional reconstruction is realized. However, the following technical problems still exist in the prior art when implementing the three-dimensional imaging function: The problem of spatial interference between the X-ray emitting end and the control end is particularly pronounced. In the process of performing rotary scanning on the bulb tube to achieve multi-angle exposure, the control box is used as a key component for regulating and controlling X-ray emission parameters and is usually fixedly arranged near the bulb tube. When the bulb rotates to a certain angle, the movement path and the control box collide with each other in space position, so that the rotation angle range of the bulb is limited, and the stability and safety of the operation of the equipment are seriously affected. In order to solve the problem, the existing device often adopts a mode of increasing the space between components or limiting the rotation angle, but the whole volume of the device is increased, the imaging angle is limited, and the requirement of multi-view data acquisition in a large angle range cannot be met. Disclosure of Invention The invention aims to provide an X-ray emission regulating mechanism, a double-suspension DR and a using method for three-dimensional reconstruction, so as to solve the problems in the prior art, effectively reduce the volume of equipment and improve the scanning angle range and imaging quality of three-dimensional reconstruction while guaranteeing the large-angle rotation space of a bulb tube. In order to achieve the above object, the present invention provides the following solutions: The invention provides an X-ray emission regulating mechanism for three-dimensional reconstruction, which comprises an X-ray emission mechanism, a control box, a rotating mechanism, a lifting mechanism and a linkage mechanism, wherein the X-ray emission mechanism is used for generating and emitting X-rays, the control box is electrically connected with the X-ray emission mechanism and is used for receiving external instructions and regulating emission parameters of the X-rays, the rotating mechanism is used for bearing the X-ray emission mechanism and driving the X-ray emission mechanism to rotate so as to realize multi-angle X-ray emission, the lifting mechanism is used for bearing the control box and driving the control box to lift, and the linkage mechanism is respectively in transmission connection with the rotating mechanism and the lifting mechanism so that when the rotating mechanism drives the X-ray emission mechanism to rotate, the linkage mechanism synchronously drives the lifting mechanism to lift the control box so as to avoid a rotating path of the X-ray emission mechanism. Preferably, the X-ray emitting mechanism comprises a bulb and a beam limiter coaxially connected with the bulb, and the bulb is mounted on the rotating mechanism and can rotate around the axial lead of the bulb under the driving of the rotating mechanism. Preferably, the rotary mechanism comprises a mounting seat, a pipe hoop, a sector gear, a driving motor, a speed reducer and a first gear, wherein the mounting seat is used for being in transmission connection with a telescopic suspension arm of the suspension DR, an outer ring of the pipe hoop is fixedly connected to the mounting seat, a ball pipe is sleeved in the pipe hoop and is fixedly connected with an inner ring of the pipe hoop, the sector gear is fixedly connected with the inner ring of the pipe hoop, the driving motor and the speed reducer are both fixedly connected with the mounting seat, an output shaft of the driving motor is in transmission connection with the first gear through the speed reducer,