CN104812445A - Multi-angle motion treatment bed - Google Patents

Abstract

The invention relates to a treatment bed capable of realizing multidirectional movement, which comprises a base, an X-direction movable bed body, a lifting bed body, a rotating bed body, a Y-direction rotating bed body, an X-direction rotating bed body and an upper bed plate. The X-direction moving bed body is connected with the base and can move in the X direction relative to the base. The lifting bed body is connected with the X-direction moving bed body and can move in the Z direction relative to the X-direction moving bed body. The rotary bed body is connected with the lifting bed body and can rotate in an XY plane relative to the lifting bed body. The Y-direction rotating bed body is connected with the rotating bed body in a swinging mode and can swing in the Y direction relative to the rotating bed body. The X-direction rotating bed body is connected with the Y-direction rotating bed body in a swinging mode and can swing in the X direction relative to the Y-direction rotating bed body. The upper bed plate is connected with the X-direction rotating bed body and can move in the Y direction relative to the X-direction rotating bed body. The treatment bed capable of realizing multidirectional movement is adopted to solve the problem of positioning precision of the treatment bed.

Description

A multi-angle exercise therapy bed

technical field

The invention relates to the field of medical instruments, in particular to a treatment couch capable of multi-angle movement in gamma knife equipment.

Background technique

Gamma Knife equipment must include a treatment bed that carries the patient. When the treatment bed is treating tumors in different parts of the patient, it needs to move up and down, left and right, and back and forth to adjust the irradiation position. As shown in FIG. 1 , the existing treatment bed includes a base 21 , a bed 22 , a middle bed 23 and a bed board 24 . The middle bed 23 , the bed 22 and the bed board 24 are connected to each other through two vertical linear guide rails 25 , and the bed 22 and the base 21 are connected through a vertical guide rail 26 . In this way, the treatment couch can only move in the X-axis direction, Y-axis direction, and Z-axis direction to compensate for the position error caused by the placement of the radioactive source in the Gamma Knife device. However, in actual use, a position error of six degrees of freedom will occur, and the existing treatment bed cannot accurately position the patient, resulting in treatment error.

Contents of the invention

The invention provides a treatment bed capable of multi-angle movement, which realizes accurate positioning during the treatment process.

An embodiment of the present invention provides a treatment bed capable of multi-directional motion, including a base, an X-direction moving bed, an elevating bed, a rotating bed, a Y-rotating bed, an X-rotating bed and an upper bed board. The X-direction mobile bed is connected to the base, and an X-direction mobile driver is arranged between the X-direction mobile bed and the base, for driving the X-direction mobile bed to move relative to the base in the X direction. The lifting bed is connected with the X-direction moving bed, and a Z-direction lifting driver is also arranged between the lifting bed and the X-direction moving bed, which is used to drive the lifting bed to move in the Z direction relative to the X-direction moving bed. move. The rotating bed is connected with the lifting bed, and can rotate in the XY plane relative to the lifting bed. The Y-rotating bed is swingably connected to the rotating bed, and a Y-rotating drive is also arranged between the Y-rotating bed and the rotating bed for driving the Y-rotating bed relative to the rotating bed. Swing in the Y direction. The X-rotating bed is swingably connected to the Y-rotating bed, and an X-rotating driver is arranged between the X-rotating bed and the Y-rotating bed for driving the X-rotating bed relative to the Y-rotating bed. The Y-rotating bed swings along the X direction. The upper bed board is connected with the X-direction rotating bed, and a Y-direction moving driver is arranged between the upper bed board and the X-direction rotating bed, for driving the upper bed board to move in the Y direction relative to the X-direction rotating bed.

Preferably, the X-direction movement driver includes an X-direction movement lead screw arranged between the X-direction movement bed and the base.

Preferably, a first support rail is also included, and the X-direction movable bed is connected to the base through the first support rail.

Preferably, the Z-direction lifting driver is arranged on the Z-direction lifting screw 11 between the lifting bed and the X-moving bed.

Preferably, it also includes a Z-direction linear guide rail, and the lifting bed is connected with the X-direction movable bed through the Z-direction linear guide rail.

Preferably, a worm gear device arranged between the rotating bed and the X-direction moving bed is also included.

Preferably, it also includes a first rotating shaft connected to the Y-direction rotating bed and one end of the rotating bed, and the Y-rotating driver includes an Rotate the lead screw in the Y direction.

Preferably, it also includes a second rotating shaft connected to one end of the X-rotating bed and the Y-rotating bed, and the X-rotating drive includes another shaft opposite to the second rotating shaft. X-rotating lead screw at one end.

Preferably, the Y-direction moving driver includes a Y-direction moving screw rod arranged between the upper bed board and the X-direction rotating bed.

Preferably, it also includes a second support rail, and the upper bed board is connected with the X-direction rotating bed through the second support rail.

By adopting the multi-directional motion treatment couch in the embodiment of the present invention, the multi-directional movement of the treatment couch in six dimensions can be realized, so that the treatment couch can realize accurate treatment positioning.

Description of drawings

Fig. 1 is the schematic diagram of the treatment bed structure in the existing Gamma Knife equipment;

Fig. 2 is a schematic structural view of a multi-angle movable treatment bed provided by an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In order to better understand the technical solution of the present invention, the applicant illustrates the multi-angle movable treatment bed according to the embodiment of the present invention through the specific implementation manner in FIG. 2 . As shown in Figure 2, the treatment bed includes base 1, X-direction movable bed 2, lifting bed 3, rotating bed 4, Y-direction rotating bed 5, X-direction rotating bed 6, and Upper bed board 8. The specific connections of the above devices are as follows:

The base 1 is the foundation of the six-dimensional moving bed, and the X-direction moving bed 2 is connected to the base 1 through the X-direction moving driver, which is used to drive the X-direction moving bed to move relative to the base in the X direction. Specifically, in this embodiment, the X-direction moving driver includes an X-direction moving screw 13 and a corresponding motor (not shown in the figure), and the motor drives the X-direction moving screw 13 to convert rotational motion into linear motion, thereby realizing X-direction movement. The mobile bed 2 moves in the X direction. Preferably, a first support rail 15 is further included between the X-direction movable bed 2 and the base, for guiding the X-direction movable bed 2 to move in the X direction.

The lifting bed 3 is connected with the X-direction moving bed 2 through the Z-direction lifting driver, and the Z-direction lifting driver is used to drive the lifting bed to move in the Z direction relative to the X-direction moving bed. Specifically, in this embodiment, the Z-direction lifting driver includes a Z-direction lifting screw 11 and a corresponding motor. Similarly, the motor drives the Z-direction lifting lead screw 11 to rotate to realize the lifting movement of the lifting bed 3 .

A worm gear device 12 coordinating with the rotating bed 4 is installed in the lifting bed 3, and the rotating bed 4 can rotate 180 degrees in the XY plane through the worm gear transmission. It can be understood that the worm gear device 12 can also be arranged on the lifting bed 3 or the base 1, as long as the lifting bed 3 can rotate in the XY plane.

The Y-rotating bed 5 and the rotating bed 4 are swingably connected and fixed through the first rotating shaft 14, and a Y-rotating drive is also arranged between the Y-rotating bed and the rotating bed, which is used to drive the Y The rotating bed swings in the Y direction relative to the rotating bed. Specifically, in this embodiment, the Y-rotation driver includes a Y-rotation lead screw 10 and a corresponding motor disposed on the other side opposite to the first rotation shaft 14 to realize the Y-rotation of the bed. It can be understood that the first rotating shaft 14 and the Y-rotating lead screw 10 are not limited to be arranged at opposite ends, as long as the Y-rotating bed 5 can swing relative to the rotating bed 4 in the Y-direction.

One end of the X-rotating bed 6 and the Y-rotating bed 5 is swingably connected and fixed through a second rotating shaft (not shown in the figure), and an X-rotating bed is also provided between the X-rotating bed and the Y-rotating bed. The rotary driver is used to drive the X-direction rotating bed relative to the Y-direction rotating bed to swing along the X direction. Specifically, in this embodiment, the X-direction rotation driver includes an X-direction rotation screw 9 and a corresponding motor arranged on the opposite side to the second rotation shaft to realize the X-direction rotation of the X-direction bed. Similarly, the second rotating shaft and the X-direction rotating lead screw 9 are not limited to be arranged at opposite ends.

The upper bed board 8 and the X-direction rotating bed 6 can preferably be connected and fixed by a second support rail (not shown in the figure), and a Y-direction moving driver is also arranged between the upper bed board and the X-direction rotating bed for driving the upper The bed board moves in the Y direction relative to the X direction rotating bed. Specifically, in this embodiment, the Y-direction movement driver includes a Y-direction movement screw 7 and a corresponding motor drive to realize the Y-direction movement of the upper bed board 8 .

During use, the head patient is placed on the multi-angle movable treatment bed (six-dimensional bed) and fixed on the upper bed board 8 . The imaging system is used for setup verification, and the six-dimensional deviation between the actual position of the patient's tumor on the six-dimensional bed and the planned position of the patient's tumor is calculated and sent to the control computer. The six-dimensional bed automatically readjusts the position of the patient's tumor according to the instructions of the control machine to meet the requirements of the plan and improve the actual treatment accuracy.

In the embodiment of the present invention, through the cooperation between the base 1, the X-direction moving bed 2, the lifting bed 3, the rotating bed 4, the Y-direction rotating bed 5, the X-direction rotating bed 6, and the upper bed 8 , to realize the multi-directional movement of the treatment couch in six dimensions, so that the treatment couch can achieve precise treatment positioning.

In the above embodiment, the first support guide rail 15 and the X-direction moving screw 13, the Z-direction linear guide rail and the Z-direction lifting screw 11, the Y-direction rotating screw 10, the X-direction rotating screw 9, the second support guide rail and the Y-direction moving lead screw 7 and other devices are all used to realize the movement in the corresponding direction. Therefore, it can be understood that in other embodiments, it can also be a linear motor or a cylinder that can realize movement in one direction. devices, and are not limited to the above-mentioned embodiments.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. A therapeutic bed capable of realizing multidirectional motion, characterized in that, comprising: base; The X-direction mobile bed is connected to the base, and an X-direction mobile driver is arranged between the X-direction mobile bed and the base, which is used to drive the X-direction mobile bed to move relative to the base in the X direction; The lifting bed is connected with the X-moving bed, and a Z-direction lifting driver is also arranged between the lifting bed and the X-moving bed, which is used to drive the lifting bed relative to the X-moving bed. Z to move; A rotating bed, which is connected to the lifting bed, and can rotate in the XY plane relative to the lifting bed; The Y-rotating bed is swingably connected with the rotating bed, and a Y-rotating driver is arranged between the Y-rotating bed and the rotating bed for driving the Y-rotating bed to rotate relative to the The bed swings along the Y direction; The X-rotating bed is swingably connected to the Y-rotating bed, and an X-rotating driver is arranged between the X-rotating bed and the Y-rotating bed for driving the X-rotating bed The body swings in the X direction relative to the Y-rotating bed; and The upper bed board is connected with the X-direction rotating bed, and a Y-direction moving driver is arranged between the upper bed board and the X-direction rotating bed, which is used to drive the upper bed board to move in the Y direction relative to the X-direction rotating bed . 2 . The treatment bed capable of multi-directional motion according to claim 1 , wherein the X-direction movement driver comprises an X-direction movement lead screw disposed between the X-direction movement bed and the base. 3. The treatment bed capable of multi-directional motion according to claim 2, further comprising a first support rail, the X-direction movable bed is connected to the base through the first support rail. 4 . The treatment bed capable of multi-directional movement according to claim 1 , wherein the Z-direction lifting driver is arranged on a Z-direction lifting screw 11 between the lifting bed and the X-moving bed. 5. The treatment bed capable of multi-directional motion according to claim 4, further comprising a Z-direction linear guide rail, through which the lifting bed is connected with the X-direction movable bed. 6 . The treatment bed capable of multi-directional motion according to claim 1 , further comprising a worm gear device arranged between the rotating bed and the X-direction moving bed. 7 . 7. The treatment bed capable of multi-directional motion according to claim 1, further comprising a first rotating shaft connected to the Y-direction rotating bed and one end of the rotating bed, and the Y-direction rotating drive includes a set A Y-rotating lead screw at the other end of the Y-rotating bed opposite to the first rotating shaft. 8. The multi-directional motion treatment bed according to claim 1, further comprising a second rotation shaft connected to one end of the X-rotation bed and the Y-rotation bed, and the X-rotation driver It includes an X-direction rotating lead screw arranged at the other end of the X-direction rotating bed opposite to the second rotating shaft. 9. The treatment bed capable of multi-directional motion according to claim 1, wherein the Y-direction movement driver comprises a Y-direction movement screw rod arranged between the upper bed board and the X-direction rotating bed. 10. The treatment bed capable of multi-directional motion according to claim 9, further comprising a second support rail, the upper bed board is connected with the X-direction rotating bed through the second support rail.