CN211022722U

CN211022722U - X-ray beam limiter

Info

Publication number: CN211022722U
Application number: CN201921532284.3U
Authority: CN
Inventors: 张进东; 赵红波; 张羽
Original assignee: Shenyang Zhonghuiyida Technology Development Co ltd
Current assignee: Shenyang Zhonghuiyida Technology Development Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-07-17
Anticipated expiration: 2029-09-16

Abstract

The utility model relates to the technical field of X-ray beam limiting, in particular to an X-ray beam limiter which is arranged under an X-ray transmitting bulb tube and comprises a shell, wherein the center of the upper surface of the shell is provided with an X-ray injection hole, the edge of the X-ray injection hole is provided with an opening limiting mechanism, a reflector is fixedly arranged at the center position in the shell and at a position forming an angle of 45 degrees with the incident vertical X-ray, the reflecting surface of the reflector faces downwards, a camera is fixedly arranged on the side wall of the shell, the camera faces the reflecting surface of the reflector, the X-ray transmitting bulb tube and the camera are in mirror symmetry, thus, the image in the camera is the radiation field irradiated by the bulb tube, an operator can observe the irradiated part of the patient in a control room through the display screen, the beam limiter is controlled and adjusted by the operating rod, so that the working efficiency of an operator is improved, and the possibility of receiving wires is reduced.

Description

X-ray beam limiter

Technical Field

The utility model relates to a X ray beam limiting technical field provides a X ray beam limiter very much.

Background

The beam limiter is an indispensable component of the X-ray diagnostic equipment, is installed at an exit port of the X-ray of the bulb tube (i.e. a bulb tube sleeve window), and is a device for limiting the X-ray irradiation field of view within a required range and shielding scattered rays to reduce the damage of the X-ray to a patient, and is also called a beam splitter. Is often used in the following cases: (1) in an X-ray therapy apparatus, when a diseased cell is irradiated for therapy, the X-ray shielding apparatus is used for shielding X-rays and protecting normal cells from being damaged by the X-rays. (2) The non-examined region is protected during fluoroscopy and photography. In both cases, the size, shape and quality of the X-ray irradiation field are adjusted by the control of the beam limiter. The traditional medical X-ray machine beam limiter has the following defects: (1) the condition of the examined part cannot be monitored in real time. In the examination process of a patient, certain examination body positions are not easy to keep for a long time, and a doctor returns to a control room for exposure operation after positioning, and does not intuitively perceive the change of the position of the examination body position, so that a photographed image has a tail shadow or non-optimal body position for photographing, and the judgment of a clinician on a focus is difficult; (2) the precision of changing the size of the ray field by manually adjusting the beam limiter is not high. If a doctor manually rotates and adjusts a knob of a beam limiter beside a diagnosis bed to change the ray field, the force is not uniform, so that mechanical errors are increased during rotation, and the ray field precision is not high; (3) the error of the remote control for adjusting the ray field is larger. The radiation field is remotely adjusted through the operating handle, the size of the radiation field cannot be observed in real time, the projection error of X-rays is large, unnecessary radiation is caused to normal tissues of a patient, the working efficiency of a doctor is reduced, and the recovery period of mechanical cost is prolonged.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an X-ray beam limiter.

The utility model discloses a realize like this, X ray beam limiter, the setting is under X ray emission bulb, which comprises a housin, the upper surface center of casing is opened there is the X ray to penetrate the hole, opening stop gear is installed at the edge that the X ray penetrated the hole, central point puts in the casing inside, becomes the position at 45 jiaos with the vertically X ray that penetrates, the fixed mounting reflector, the reflecting surface of reflector is downwards, on the lateral wall of casing, the fixed camera that sets up, the camera is in the face of the reflecting surface of reflector, and X ray emission bulb is mirror symmetry with the camera.

The X-ray beam limiting device comprises an X-ray beam limiting device, a camera, a human-computer interaction device and an opening limiting mechanism, wherein the opening limiting mechanism and the camera are connected with the controller respectively, and the controller is connected with the human-computer interaction device and used for controlling the position of the X-ray beam limiting device.

Further, the opening limiting mechanism is a lead door.

Further, the shell is of a cubic hollow structure.

Furthermore, a conical cylinder type light-gathering cylinder is fixedly arranged on one side, close to the X-ray emission bulb tube, of the X-ray injection hole.

Furthermore, a support frame is fixed on the side wall of the shell, and the camera is connected to the support frame.

Compared with the prior art, the utility model has the advantages of: the camera and the bulb tube form mirror symmetry through the reflector, so that an image in the camera is a ray field irradiated by the bulb tube, an operator can observe the irradiated part of a patient through the display screen in the control room, the beam limiter is controlled and adjusted through the operating rod, the working efficiency of the operator is improved, and the possibility of receiving the ray is reduced.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and embodiments:

FIG. 1 is a schematic view of a housing of the present invention;

fig. 2 is a schematic diagram of the connection principle between the control part and the human-computer interaction device of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, the utility model provides an X-ray beam limiter, set up under X-ray emission bulb 1, including casing 2, the upper surface center of casing 2 is opened there is the X-ray and is penetrated hole 201, the lower surface center of casing 2 is opened there is the X-ray and is penetrated hole 202, current opening stop gear 3 is installed at the edge of X-ray emission hole 202, at the inside central point of casing 2, become the position of 45 jiaos with the perpendicular X-ray that penetrates, fixed mounting reflector 4, the edge of reflector 4 is fixed with the inner wall of casing 2 promptly, reflector 4's reflection of light face is down, on the lateral wall of casing 2, fixed camera 5 that sets up, camera 5 is the reflection of light face of reflector 4, and X-ray emission bulb 1 is mirror symmetry with camera 5, under this kind of angle, the image that the camera caught is the field of irradiation X-ray promptly.

In order to facilitate control, as an improvement of the technical scheme, the X-ray beam limiter further comprises a controller 6, wherein the opening limiting mechanism 3 and the camera 5 are respectively connected with the controller 6, and the controller 6 is connected with a human-computer interaction device 7 and used for controlling the position of the X-ray beam limiter.

When the X-ray is required to work, the camera 5 collects images in the reflector 4, namely the irradiation field of the X-ray emitted by the X-ray emission bulb tube, the images are transmitted to the controller 6, the controller 6 transmits the images to the human-computer interaction device 7, namely a computer, an operator can see the specific working range of the X-ray through the display, the operator inputs the images through the human-computer interaction device 7, the human-computer interaction device 7 transmits the information input by the operator to the controller 6, and the controller 6 controls the opening size of the opening limiting mechanism 3 and the position of the beam limiter according to the information indication to adjust the irradiation field of the X-ray to the optimal position.

Preferably, the opening limiting mechanism 3 is a lead door, a transmission mechanism is arranged on the lead door, the transmission mechanism is controlled by a stepping motor, and the stepping motor is connected with the controller 6, so that the size of the opening of the lead door is controlled by the controller 6.

For the convenience of arranging the reflector and the camera and for better operation, as an improvement of the technical scheme, the shell 2 is of a cubic hollow structure.

In order to reduce the exposure range of the X-ray before being absorbed into the housing 2, as a technical improvement, a conical cylindrical light-gathering cylinder 9 is fixedly arranged on one side of the X-ray injection hole 201 close to the X-ray emission bulb 1.

In order to better arrange the camera 5, a support frame 10 is fixed on the side wall of the shell 2, and the camera 5 is connected to the support frame 10. The support frame 10 may be configured as a frame structure as long as it can support the camera 5 and fix its direction.

Claims

The X-ray beam limiter is characterized in that the X-ray beam limiter is arranged under an X-ray emission bulb tube (1) and comprises a shell (2), an X-ray injection hole (201) is formed in the center of the upper surface of the shell (2), an X-ray injection hole (202) is formed in the center of the lower surface of the shell (2), an opening limiting mechanism (3) is installed at the edge of the X-ray injection hole (202), the position of the center inside the shell (2) forms an angle of 45 degrees with the injected vertical X-ray, a reflector (4) is fixedly installed, the reflecting surface of the reflector (4) faces downwards, a camera (5) is fixedly arranged on the side wall of the shell (2), the camera (5) faces the reflecting surface of the reflector (4), and the X-ray emission bulb tube (1) and the camera (5) are in mirror symmetry.
2. The X-ray beam limiter according to claim 1, further comprising a controller (6), wherein the opening limiting mechanism (3) and the camera (5) are respectively connected with the controller (6), and the controller (6) is connected with a human-computer interaction device (7) and is used for controlling the position of the X-ray beam limiter.
3. An X-ray beam limiter according to claim 1, characterized in that the opening limiter (3) is a lead door.
4. An X-ray beam limiter according to claim 1, characterized in that the housing (2) is of a cubic hollow construction.
5. The X-ray beam limiter according to claim 1, wherein a conical cylinder type condenser (9) is fixedly arranged at one side of the X-ray injection hole (201) close to the X-ray emission bulb (1).
6. The X-ray beam limiter according to claim 1, characterized in that a support (10) is fixed to a side wall of the housing (2), and the camera (5) is connected to the support (10).