CN105561483B - A kind of digital picture detection plate angular apparatus for correcting and its radiotherapy apparatus - Google Patents

Abstract

The present invention relates to a kind of digital pictures to detect plate angular apparatus for correcting, digital picture for radiotherapy equipment detects the angle adjustment of tablet, including angle detection mechanism, digital picture is arranged to detect on tablet, tablet is detected to set angle to adjust digital picture for detecting the angle change of digital image detection tablet.The angle change of the digital image detection tablet of angle detection mechanism detection detects tablet to set angle to adjust digital picture in the present invention, when radiotherapy, ensures the accuracy of radiation treatment images, realizes automation, improve working efficiency, more convenient.

Description

A digital image detection flat panel angle correction device and its radiotherapy apparatus

technical field

The invention belongs to the field of medical equipment manufacturing, and in particular relates to a digital image detection flat panel angle correction device and a radiotherapy instrument thereof.

Background technique

A radiation therapy machine is used in medical treatment to treat diseased tissue, such as tumor tissue, with radiation. The types of radiation suitable for this treatment include high-energy X-rays in the megavolt range, light particle radiation, etc. Living tissue is altered by radiation treatment: connections may be disrupted or atoms may be ionized. These changes can cause damage or kill tissue. In radiation therapy, this effect should be avoided as much as possible on healthy tissue. Therefore, tumor tissue should be treated with radiation only as targeted as possible, requiring precise localization of the tumor.

Publication No. US6888919 discloses a radiotherapy apparatus, wherein the radiation components are installed in the first frame, and the imaging components are installed in the second frame. The imaging component needs to be below the radiation component and kept vertical during operation. In this patent, the angular position of the imaging component cannot be detected and corrected during operation.

Contents of the invention

The purpose of the present invention is to overcome the defects in the prior art, and provide a digital image detection flat panel angle correction device and a radiotherapy apparatus thereof.

The technical solution for realizing the purpose of the present invention is: a digital image detection panel angle correction device, which is used for angle adjustment of the digital image detection panel of radiotherapy equipment, including:

The angle detection mechanism is arranged on the digital image detection flat panel, and is used for detecting the angle change of the digital image detection flat panel to adjust the digital image detection flat panel to a set angle.

Further, the angle detection mechanism includes at least one angle sensor.

Further, it also includes a detection plate transmission device, the detection plate transmission device is adjusted according to the angle change signal sent by the angle detection mechanism, so that the digital image detection plate returns to the set angle position.

Further, the detection plate transmission device includes:

a support arm for supporting the following support unit;

The support unit is used to install the digital image detection flat panel and adjust the stroke of the digital image detection flat panel. One end of the support unit is hinged on the support arm and located below the radiation source. The support unit is planar and on its plane The inside is a telescopic structure, and the digital image detection flat panel is set on the support unit;

The rotating link is connected with the support arm and the support unit, and is used to drive the support unit to rotate to the working position, that is, to the unfolded state, or to rotate to the folded state where it fits on the stand.

Further, the support arm is a telescopic structure in the vertical direction to adjust the stroke of the support unit in the vertical direction.

Further, the supporting arm is also a horizontally telescopic structure, which can adjust the stroke of the supporting unit in the horizontal direction.

Further, the rotary link includes a lever arm and a rotary drive assembly connected to the lever arm, the lever arm is rotatably supported in the support arm around an axis perpendicular to the support arm, and the support The unit is rotatably supported on the lever arm about an axis perpendicular to the support arm.

Preferably, the rotating connector includes a rotating base plate, a rotating connecting rod and a rotating drive assembly for driving the rotating base plate to slide, the rotating base plate is slidably arranged on the support arm, and the rotating connecting rod is connected with the rotating connecting rod respectively. The supporting unit and the rotating bottom plate are hinged.

Further, if the rotating bottom plate slides close to the hinge point between the support unit and the support arm, the drive support unit rotates counterclockwise around the hinge point with the support arm to the working position, that is, the unfolded state;

When the rotating bottom plate slides away from the hinge point between the support unit and the support arm, the support unit is driven to rotate clockwise around the hinge point with the support arm until it fits on the stand, that is, it is folded.

Further, a radiotherapy apparatus, comprising:

Bench;

a radiation source, arranged on the upper part of the gantry, for emitting radiation;

The digital image detection flat panel angle correction device is arranged on the stand and below the ray source, and is used to support and drive the following digital image detection flat panel;

The digital image detection flat panel is arranged on the angle correction device of the digital image detection flat panel, and is used to receive the radiation emitted by the radiation source and form an image.

The present invention has positive effects: in the present invention, the angle detection mechanism detects the angle change of the digital image detection flat panel to adjust the digital image detection flat panel to the set angle. During radiotherapy, the accuracy of radiotherapy images is ensured, automation is realized, and work efficiency is improved. ,More convenient.

Description of drawings

In order to make the content of the present invention easier to understand clearly, the present invention will be described in further detail below according to specific embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a schematic structural diagram of the whole of the first embodiment of the present invention;

Fig. 2 is a schematic structural view of the angle correction mechanism according to the first embodiment of the present invention;

Fig. 3 is a schematic diagram of the overall structure of the fourth embodiment of the present invention.

Among them: 1. Supporting arm, 2. Rotating connector, 21. Rotating bottom plate, 22. Rotating connecting rod, 3. Support unit, 31. Lower supporting plate, 32. Upper supporting plate, 4. Bench, 5. Radiation source , 6, digital image detection flat panel, 7, lever arm, 8, angle detection mechanism.

Detailed ways

An embodiment of the present invention,

As shown in Figure 1, a digital image detection panel angle correction device is used to adjust the angle of the digital image detection panel of radiotherapy equipment, including:

The angle detection mechanism 8 is arranged on the digital image detection flat panel 6, and is used to detect the angle change of the digital image detection flat panel 6 to adjust the digital image detection flat panel to a set angle.

In this embodiment, the angle detection mechanism 8 detects the angle change of the digital image detection panel 6 to adjust the digital image detection panel to a set angle. During radiotherapy, the accuracy of radiotherapy images is ensured, automation is achieved, and work efficiency is improved, making it more convenient.

According to the actual situation, it can be selected that the angle detection mechanism 8 is one or more angle sensors; the angle detection mechanism 8 adopts a pendulum and induction circuits arranged on both sides of the pendulum, when the angle of the digital image detection plate changes, the pendulum When the position changes, the resistance in the sensing circuit changes, and a corresponding voltage value signal is generated, and the digital image detection panel is adjusted to the set angle according to the voltage value signal; the angle detection mechanism 8 also adopts horizontally arranged balls and a ball directly above the balls For the imaging device, when the angle of the digital image detection plate changes, the position of the ball will change in displacement. The imaging device will calculate the change in the angle of the digital image detection plate after imaging the displacement change, and then adjust the digital image detection plate 6 to return to the set value. angular position.

In some embodiments, the detection plate transmission device is also included, and the detection plate transmission device is adjusted according to the angle change signal sent by the angle detection mechanism, so that the digital image detection plate returns to the set angle position.

Among them, the detection plate transmission device includes:

A support arm 1, the support arm 1 is used to support the support unit 3;

Support unit 3, one end of the support unit 3 is hinged on the support arm 1 and located below the radiation source, the support unit 3 is planar and has a telescopic structure in its plane, and is used to install the digital image detection flat panel 6 and adjust the digital image detection flat panel 6 itinerary;

The rotating connector 2 is connected with the support arm 1 and the support unit 3 , and is used to rotate the support unit 3 to a working position, that is, an unfolded state, or to a folded state where it fits on the stand 4 .

As shown in Figure 2, the support unit 3 provided in this embodiment includes:

The support plate includes a lower support plate 31 and an upper support plate 32 sliding on the lower support plate 31, and one end of the lower support plate 31 is hinged on the support arm 1;

The detection drive assembly is connected with the upper support plate 32 and is used to drive the upper support plate 32 to slide on the lower support plate 31 .

The rotating connector 2 provided in this embodiment includes a rotating base plate 21, a rotating connecting rod 22 and a rotating drive assembly for driving the rotating base plate 21 to slide. 3. The rotating bottom plate 21 is hinged.

Wherein, there is an interval between the hinge point of the support unit 3 and the support arm 1, and the hinge point of the rotating connecting rod 22 and the rotating bottom plate 21;

There is an interval between the hinge point of the support unit 3 and the support arm 1, and the hinge point of the support unit 3 and the rotating connecting rod 22;

If the rotating bottom plate 21 slides towards the hinge point close to the support unit 3 and the support arm 1, the drive support unit 3 will rotate counterclockwise around the hinge point with the support arm 1 to the working position, that is, the unfolded state;

If the rotating bottom plate 21 slides away from the hinge point between the support unit 3 and the support arm 1, the drive support unit 3 is driven to rotate clockwise around the hinge point with the support arm 1 to fit the stand, that is, the folded state.

In order to meet the stroke of the support unit 3 in the vertical direction and the horizontal direction, on the basis of the previous embodiment, the supporting arm 1 is a telescopic structure in the vertical direction and the horizontal direction, and the adjustment support unit 3 is in the vertical direction and the horizontal direction. itinerary.

In order to further satisfy the stroke of the support unit 3 in the horizontal direction, on the basis of the second embodiment, the support plate includes a lower support plate 31 and three upper support plates 32 that are sequentially stacked and slid on the lower support plate 31, and the lower support plate 31 One end is hinged on the supporting arm 1.

As shown in FIG. 3 , in other embodiments, the rotary connector 2 includes a lever arm 7 and a rotary drive assembly connected to the lever arm 7 , and the lever arm 7 is rotatably supported on the support arm 1 around an axis perpendicular to the support arm 1 1, the support unit 3 is rotatably mounted on the arm 7 about an axis perpendicular to the support arm 1. In this embodiment, the rotating connector 2 adopts another structure to connect the supporting unit 3, as another embodiment, achieving the same technical effect as the previous embodiment.

This embodiment also provides a radiotherapy apparatus, including:

Bench 4;

The ray source 5 is arranged on the upper part of the gantry 4 and is used for emitting rays;

The digital image detection flat panel angle correction device is arranged on the platform 4 and located below the ray source 5, and is used to support and drive the digital image detection flat panel 6;

The digital image detection panel 6 is arranged on the angle correction device of the digital image detection panel, and is used to receive the radiation emitted by the radiation source 5 and form an image.

In this embodiment, the angle correction mechanism is adjusted according to the angle change signal sent by the angle detection mechanism 8, so that the digital image detection flat panel 6 is restored to the set angle position, and the imaging is more accurate during radiotherapy, which realizes automation, is more convenient, and improves work efficiency. efficiency.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. A digital image detection flat panel angle correction device, used for the angle adjustment of the digital image detection flat panel of radiotherapy equipment, is characterized in that, comprising: The angle detection mechanism is set on the digital image detection flat panel to detect the angle change of the digital image detection flat panel to adjust the digital image detection flat panel to the set angle: The detection plate transmission device, the detection plate transmission device is adjusted according to the angle change signal sent by the angle detection mechanism, so that the digital image detection plate returns to the set angle position, and the detection plate transmission device includes: a support arm for supporting the following support unit; The support unit is used to install the digital image detection flat panel and adjust the stroke of the digital image detection flat panel. One end of the support unit is hinged on the support arm and located below the radiation source. The support unit is planar and on its plane The inside is a telescopic structure, and the digital image detection flat panel is set on the support unit; The rotating connector is connected with the supporting arm and the supporting unit, and is used to drive the supporting unit to rotate to the working position, that is, to the unfolded state or to rotate to the folded state where it is attached to the stand, and the rotating connecting member includes a lever arm and a rotary drive assembly connected to the lever arm, the lever arm is rotatably supported in the support arm about an axis perpendicular to the support arm, and the support unit is rotatably about an axis perpendicular to the support arm supported on the lever arm. 2 . The digital image detection flat panel angle correction device according to claim 1 , wherein the angle detection mechanism comprises at least one angle sensor. 3 . 3 . The device for correcting the angle of the digital image detection flat panel according to claim 1 , wherein the support arm is a telescopic structure in the vertical direction to adjust the stroke of the support unit in the vertical direction. 4 . 4 . The device for correcting the angle of the digital image detection flat panel according to claim 1 , wherein the supporting arm is also a horizontally telescopic structure, and the stroke of the supporting unit in the horizontal direction is adjusted. 5. The digital image detection flat panel angle correction device according to claim 1, wherein the rotating connector comprises a rotating bottom plate, a rotating connecting rod and a rotating drive assembly for driving the sliding of the rotating bottom plate, and the rotating The bottom plate is slidably arranged on the support arm, and the rotating connecting rod is respectively hinged with the supporting unit and the rotating bottom plate. 6. The digital image detection flat panel angle correction device according to claim 5, wherein if the rotating bottom plate slides toward the hinge point close to the support unit and the support arm, the support unit is driven to rotate around the support arm. The hinge point of the support arm is rotated counterclockwise upwards to the working position, that is, the unfolded state; When the rotating bottom plate slides away from the hinge point between the support unit and the support arm, the support unit is driven to rotate clockwise around the hinge point with the support arm until it fits on the stand, that is, it is folded. 7. A radiotherapy apparatus, characterized in that, comprising: Bench; a radiation source, arranged on the upper part of the gantry, for emitting radiation; The digital image detection flat panel angle correction device according to claims 1-6, which is arranged on the stand and below the ray source, and is used to support and drive the following digital image detection flat panel; The digital image detection flat panel is arranged on the angle correction device of the digital image detection flat panel, and is used to receive the radiation emitted by the radiation source and form an image.