CN113274652A

CN113274652A - Improved generation oncology uses radiotherapy device

Info

Publication number: CN113274652A
Application number: CN202110709502.1A
Authority: CN
Inventors: 尹丽; 姜雪松; 狄文忆; 章平川
Original assignee: Jiangsu Cancer Hospital
Current assignee: Jiangsu Cancer Hospital
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-08-20

Abstract

The invention relates to the technical field of radiotherapy equipment in oncology, in particular to an improved radiotherapy device for oncology, which comprises a bed body, a first moving component arranged on the bed body in a sliding manner and a radiotherapy device arranged below the first moving component in a sliding manner; the moving direction of the first moving assembly is vertical to the moving direction of the radiotherapy device; a first driving part which enables the first moving component to move is arranged between the first moving component and the bed body, and a second driving part which enables the radiotherapy device to move is arranged between the radiotherapy device and the first moving component; the inside of the bed body is provided with a human body shape following component which penetrates through the upper surface of the bed body. The invention can reduce the number of the positioning devices and improve the accuracy of radiotherapy.

Description

Improved generation oncology uses radiotherapy device

Technical Field

The invention relates to the technical field of radiotherapy equipment in oncology, in particular to an improved radiotherapy device for oncology.

Background

Tumor radiotherapy is a local treatment for tumors using radiation. The radiation includes alpha, beta and gamma rays generated by radioactive isotopes, and x-rays, electron beams, proton beams and other particle beams generated by various x-ray therapeutic machines or accelerators. About 70% of cancer patients require radiation therapy in the course of cancer treatment, and about 40% of cancers can be cured by radiation therapy. The role and position of radiotherapy in tumor treatment are increasingly prominent, and the radiotherapy has become one of the main means for treating malignant tumors.

Radiation therapy has been in the history for decades, but has progressed faster. With the help of the development of the CT imaging technology and the computer technology, the current radiotherapy technology is developed from two-dimensional radiotherapy to three-dimensional radiotherapy and four-dimensional radiotherapy technology, the radiotherapy dose distribution is also developed from point dose to volume dose distribution, and the dose intensity adjustment in the volume dose distribution is realized. Current mainstream radiotherapy techniques include Stereotactic Radiotherapy (SRT) and Stereotactic Radiosurgery (SRS). Stereotactic Radiotherapy (SRT) includes three-dimensional conformal radiotherapy (3DCRT), three-dimensional conformal Intensity Modulated Radiotherapy (IMRT); the Stereotactic Radiosurgery (SRS) comprises an X-Knife (X-Knife), a gamma Knife (Y-Knife) and a wave-emitting Knife (Cyber-Knife), and the X-Knife, the gamma Knife, the wave-emitting Knife and other devices belong to the field of stereotactic radiotherapy.

In the prior art, a large number of positioning devices are needed to be used in the process of radiotherapy of a patient, the patient is positioned on a radiotherapy bed, so that the patient adapts to the positioning precision of equipment, and a special positioning device needs to be appointed to realize the positioning of the patient aiming at different focus parts, so that inconvenience is brought in the actual operation process.

Disclosure of Invention

The invention aims to provide an improved radiotherapy device for oncology, which solves the problems, reduces the number of used positioning devices and improves the accuracy of radiotherapy.

In order to achieve the purpose, the invention provides the following scheme:

an improved radiotherapy device for oncology department comprises a bed body, a first moving assembly and a radiotherapy device, wherein the first moving assembly is arranged on the bed body in a sliding mode, and the radiotherapy device is arranged below the first moving assembly in a sliding mode; the moving direction of the first moving assembly is vertical to the moving direction of the radiotherapy device;

a first driving part which enables the first moving assembly to move is arranged between the first moving assembly and the bed body, and a second driving part which enables the radiotherapy device to move is arranged between the radiotherapy device and the first moving assembly;

the utility model discloses a bed, including bed body, bed body top surface, bed body is provided with human body type following subassembly in the bed body, human body type following subassembly passes the bed body upper surface.

Preferably, the human body shape following assembly comprises a plurality of first ejector rods which are arranged at equal intervals, the first ejector rods are vertically arranged, the bottom ends of the first ejector rods are fixedly connected with output shafts of first linear motors, the top ends of the first ejector rods are fixedly connected with first sensors, the first ejector rods penetrate through the upper surface of the bed body, and the first linear motors are fixedly connected with the bed body.

Preferably, a pressure sensor is fixedly connected between the output shaft of the first linear motor and the first ejector rod.

Preferably, the first moving assembly comprises a first moving block slidably connected to two sides of the bed body, a first cross beam is fixedly connected to the top of the first moving block, the first driving portion is arranged on the inner side of the first moving block, and the first driving portion is fixedly connected to two sides of the bed body.

Preferably, the first driving portion includes first mounting grooves symmetrically and fixedly connected to two sides of the bed body, a first lead screw is rotationally connected to the first mounting grooves, the first lead screw is in threaded connection with a first nut, the first nut is fixedly connected to the inner side of the first moving block, the first nut is slidably connected to the inner wall of the first mounting groove, the first lead screw is coupled to an output shaft of a first servo motor, and the first servo motor is fixedly connected to the first mounting groove.

Preferably, the second driving part comprises a second lead screw, a sliding groove is formed in the lower surface of the first cross beam, the second lead screw is rotatably connected in the sliding groove, a second nut is connected with the second lead screw in a threaded manner, the second nut is in sliding fit with the inner wall of the sliding groove, the second lead screw is connected with an output shaft of a second servo motor in a shaft coupling manner, the second servo motor is fixedly connected with the first cross beam, the axis of the second lead screw is perpendicular to the axis of the first lead screw, and the second nut is fixedly connected to the top of the radiotherapy device.

Preferably, a plurality of first through holes are formed in the top surface of the bed body, and the first ejector rod penetrates through the first through holes in sliding fit.

Preferably, a plurality of first linear motors are fixedly connected with a fixed plate, and the fixed plate is fixedly connected with the inside of the bed body.

Preferably, the first sensor is a distance sensor.

The invention has the following technical effects:

through at the internal human type subassembly that follows up that sets up of bed, after the people lies to the bed body, through human type subassembly that follows up, make it and human outside profile phase-match, play the effect of location, then the first drive division of control drives first removal subassembly and removes, control second drive division drives the radiotherapy device and removes, finally make the radiotherapy device remove the position that needs implement the treatment, can be to the human location of different bodily forms through human type subassembly that follows up, the use of positioner has been reduced, the adaptability of equipment has been strengthened, make the location of implementing the radiotherapy more accurate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

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

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is a schematic left side sectional view of the present invention;

FIG. 4 is a schematic view of a first lift pin structure;

FIG. 5 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a second top positioning device according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a second lift pin according to a second embodiment of the present invention;

FIG. 8 is a schematic diagram of a fourth main view structure according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of four mounting holes according to an embodiment of the present invention.

Wherein, 1, a bed body; 101. a fixing plate; 102. a first via hole; 2. a first mounting groove; 201. a first lead screw; 202. a first servo motor; 3. a first moving block; 301. a first nut; 302. a second servo motor; 303. a first cross member; 304. a second lead screw; 305. a second nut; 4. a radiotherapy device; 5. a first ejector rod; 501. a first linear motor; 502. a first sensor; 6. a second mounting groove; 601. a third lead screw; 602. a third servo motor; 7. a second moving block; 701. a third nut; 702. a fourth servo motor; 703. a second cross member; 704. a fourth lead screw; 705. a fourth nut; 8. moving the housing; 801. a second ejector rod; 802. a second linear motor; 803. a second sensor; 9. a support; 901. a transverse chute; 902. a rack; 903. a slider; 904. a gear; 905. positioning a baffle plate; 10. a locator mounting plate; 1001. a locator mounting hole; 10011. a first mounting hole; 10012. a second mounting hole; 1002. a convex lens; 1003. an infrared emitter; 1004. an infrared receiver.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The first embodiment is as follows:

referring to fig. 1-4, the present embodiment provides an improved radiotherapy device for oncology, which includes a bed body 1, a first moving assembly slidably disposed on the bed body 1, and a radiotherapy device 4 slidably disposed below the first moving assembly; the moving direction of the first moving component is vertical to the moving direction of the radiotherapy device 4;

a first driving part which enables the first moving component to move is arranged between the first moving component and the bed body 1, and a second driving part which enables the radiotherapy device 4 to move is arranged between the radiotherapy device 4 and the first moving component;

the inside of the bed body 1 is provided with a human body shape following component which penetrates through the upper surface of the bed body 1.

Through set up human body along with the type subassembly in the bed body 1, after the people lies to the bed body 1, through human body along with the type subassembly, make it and human external profile phase-match, play the effect of location, then the first drive division of control drives first removal subassembly and removes, control second drive division drives radiotherapy device 4 and removes, finally make radiotherapy device 4 remove the position that needs implement the treatment, can be to the human location of different bodily forms through human body along with the type subassembly, positioner's use has been reduced, the adaptability of equipment has been strengthened, make the location of implementing the radiotherapy more accurate.

Further optimization scheme, human body profile following subassembly includes a plurality of equidistant first ejector pins 5 of arranging, and first ejector pin 5 is vertical to be set up, and first ejector pin 5 bottom fixedly connected with first linear motor 501's output shaft, first ejector pin 5 top fixedly connected with first sensor 502, first ejector pin 5 pass bed body 1 upper surface, first linear motor 501 and bed body 1 fixed connection.

In a further optimized scheme, a pressure sensor is fixedly connected between the output shaft of the first linear motor 501 and the first ejector rod 5.

After the patient lies on sick bed 1, detect the distance of first ejector pin 5 apart from patient's body surface profile through first sensor 502, signal transmission to the control end that will detect, the operation of control end control first linear motor 501, it is ejecting upwards to drive first ejector pin 5, make the top of first ejector pin 5 and the body surface realization contact of patient, a plurality of first ejector pins 5 are through going upward different distances, realize the location to the patient, detect every first ejector pin 5's the top pressure through pressure sensor simultaneously, make every first ejector pin 5's the top pressure the same.

Further optimize the scheme, first removal subassembly includes sliding connection at the first movable block 3 of bed body 1 both sides, and first crossbeam 303 is fixedly connected with at first movable block 3 top, and first drive division sets up at first movable block 3 inboard, and first drive division fixed connection is in bed body 1 both sides.

Further optimize the scheme, first drive division includes that symmetry fixed connection is at the first mounting groove 2 of the 1 both sides of the bed body, and 2 internal rotations in the first mounting groove are connected with first lead screw 201, and first lead screw 201 threaded connection has first nut 301, and first nut 301 fixed connection is inboard at first movable block 3,

first nut

301 and 2 inner wall sliding connection in the first mounting groove, and first lead screw 201 has the output shaft of first servo motor 202,

first servo motor

202 and 2 fixed connection in the first mounting groove.

The first servo motor 202 is controlled to rotate by the control end, the first servo motor 202 drives the first lead screw 201, the first lead screw 201 drives the first nut 301 to move, and the first nut 301 drives the first moving block 3 to move, so that the radiotherapy device 4 is driven to move in one direction.

Further optimize the scheme, the second drive division includes second lead screw 304, the sliding tray has been seted up to first crossbeam 303 lower surface, second lead screw 304 rotates to be connected in the sliding tray, second lead screw 304 threaded connection has second nut 305, second nut 305 and sliding tray inner wall sliding fit, second lead screw 304 hub connection has the output shaft of second servo motor 302, second servo motor 302 and first crossbeam 303 fixed connection, the axis of second lead screw 304 is mutually perpendicular with first lead screw 201 axis, second nut 305 fixed connection is at 4 tops of radiotherapy device.

The second servo motor 302 is controlled by the control end to rotate, the second servo motor 302 drives the second lead screw 304 to rotate, and the second lead screw 304 drives the second nut 305 to move, so that the radiotherapy device 4 is driven to move in the other direction.

According to the further optimization scheme, the top surface of the bed body 1 is provided with a plurality of first through holes 102, and the first ejector rods 5 penetrate through the first through holes 102 in a sliding fit mode.

Further optimize the scheme, the organism fixedly connected with fixed plate 101 of a plurality of first linear electric motor 501, fixed plate 101 and bed body 1 inside fixed connection.

In a further preferred embodiment, the first sensor 502 is a distance sensor.

Example two:

referring to fig. 5 to 7, the radiotherapy apparatus of this embodiment is different from the first embodiment only in that a second moving assembly is slidably connected above the bed body 1, a top positioning device is slidably connected below the second moving assembly, the moving direction of the second moving assembly is the same as that of the first moving assembly, the moving direction of the top positioning device is the same as that of the radiotherapy apparatus 4, a third driving part for moving the second moving assembly is disposed between the second moving assembly and the bed body 1, and a fourth driving part for moving the top positioning device is disposed between the top positioning device and the second moving assembly.

The top positioning device comprises a movable shell 8, a plurality of second through holes are formed in the bottom surface of the movable shell 8, a second ejector rod 801 penetrates through the second through holes, a second sensor 803 is fixedly connected to the lower end of the second ejector rod 801, the second sensor 803 is a distance sensor, the top end of the second ejector rod 801 is fixedly connected with an output shaft of a second linear motor 802, the second linear motor 802 is fixedly connected with the movable shell 8, and a pressure sensor is fixedly connected between the output shaft of the second linear motor 802 and the second ejector rod 801.

The second moving assembly comprises a second moving block 7 which is arranged on two sides of the bed body 1 in a sliding mode, a second cross beam 703 is fixedly connected to the top of the second moving block 7, and a third driving portion is arranged on the inner side of the second moving block 7.

The third drive portion includes second mounting groove 6 of fixed connection in bed body 1 both sides, and 6 internal rotations in second mounting groove are connected with third lead screw 601, and third lead screw 601 one end coupling has the output shaft of third servo motor 602, and third servo motor 602 and second mounting groove 6 fixed connection, third lead screw 601 screw-thread fit have third nut 701, third nut 701 and the inboard fixed connection of second movable block 7.

The fourth driving portion comprises a fourth lead screw 704 rotatably connected in the second cross beam 703, a fourth nut 705 is connected to the outer side of the fourth lead screw 704 in a threaded manner, one end of the fourth lead screw 704 is coupled with an output shaft of a fourth servo motor 702, the fourth servo motor 702 is fixedly connected with the second cross beam 703, a sliding groove is formed in the bottom of the second cross beam 703, the fourth nut 705 is slidably connected in the sliding groove, and the fourth nut 705 is fixedly connected with the top surface of the movable shell 8.

The second removes the subassembly, top positioner's mobile mode is the same with radiotherapy device 4's mobile mode, can realize the removal of two directions of top positioner through control end control third servo motor 602, fourth servo motor 702 operation, can drive second ejector pin 801 downwards to stretch out through control end control second linear electric motor 802 operation, the tight locate function of clamp to patient is realized to the first ejector pin 5 that sets up in the cooperation bed body 1, makes the location of device more accurate.

Example three:

the radiotherapy apparatus of this embodiment is different from the second embodiment only in that the number of the second moving assemblies and the number of the top positioning devices are two, and the two second moving assemblies and the top positioning devices are respectively located at two sides of the first moving assembly.

Can fix a position the patient in the position of focus both sides through setting up two sets of top positioner, then treat the focus position through radiotherapy device 4 can, can fix a position the position of patient's focus both sides through the cooperation of two top positioner cooperation bed body 1 internal first ejector pin 5 jointly, reduce the removal of patient at treatment in-process health, make treatment position accurate reliable.

Example four

Referring to fig. 8-9, the radiotherapy apparatus of this embodiment is different from embodiment one only in that two side walls of the bed body 1 not provided with the second mounting groove 6 are respectively and fixedly connected with a first positioning assembly, the two first positioning assemblies are symmetrically arranged, the first positioning assembly includes a support 9, a main view projection shape of the support 9 is an Contraband-shaped structure, a transverse sliding groove 901 is formed in the top inner side wall of the support 9, the direction of the transverse sliding groove 901 is the same as the moving direction of the second moving assembly, a rack 902 is fixedly connected to the top of the transverse sliding groove 901, a slider 903 is slidably connected to the transverse sliding groove 901, a gear 904 is rotatably connected to the slider 903, the gear 904 is engaged with the rack 902, the gear 904 is coupled with an output shaft of a fifth servo motor, the fifth servo motor is fixedly connected with the slider 903, and a positioning baffle 905 is vertically and fixedly connected to the bottom of the slider 903.

Rotate through control end control fifth servo motor, fifth servo motor drives gear 904 and rotates to make slider 903 slide along horizontal spout 901, two sliders 903 drive location baffle 905 respectively and are close to or keep away from, the control end records the displacement of slider 903 according to fifth servo motor pivoted number of turns, thereby judge the relative distance of patient's head and foot, provide the position degree of patient's radiotherapy process, make the treatment process of radiotherapy more accurate.

Bed body 1 sets up two lateral walls of second mounting groove 6 fixedly connected with second locating component respectively, second locating component includes locator mounting panel 10, two locator mounting panel 10 symmetry sets up, a plurality of locator mounting holes 1001 have been seted up to two relative sides of locator mounting panel 10, equidistant array setting such as a plurality of locator mounting holes 1001, locator mounting hole 1001 includes first mounting hole 10011 and second mounting hole 10012, install infrared transmitter 1003 in first mounting hole 10011, install infrared receiver 1004 in the second mounting hole, convex lens 1002 is installed to the tip of second mounting hole 10012.

Control end control infrared transmitter 1003 transmission infrared ray, infrared receiver 1004 is used for receiving infrared transmitter 1003 from the infrared ray of patient's body surface reflection, through the focusing effect of convex lens 1002, make the light that infrared receiver 1004 received concentrate more, it is more accurate to make the detection precision, the control end passes through the signal time difference calculation patient left and right sides's of infrared transmitter 1003 and infrared receiver 1004 outside profile, provide the relative position degree of patient's radiotherapy process, make the treatment process of radiotherapy more accurate.

Example five:

the radiotherapy device of this embodiment only lies in with the difference of embodiment four, and bed body 1 side wall installs the second locating component respectively all around, sets up the second locating component through four directions on, can scan the profile of four directions of patient through locating component, provides more accurate position degree information for patient's radiotherapy.

The control end includes but is not limited to a PLC controller and a PC control end, and the first servo motor 202, the second servo motor 302, the first linear motor 501, the first sensor 502, the third servo motor 602, the fourth servo motor 702, the fifth servo motor, the second linear motor 802, the second sensor 803, the pressure sensor, the infrared transmitter 1003 and the infrared receiver 1004 are respectively and electrically connected to the control end, and the control mode thereof is the prior art and is not described herein again.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. An improved generation radiotherapy device for oncology, its characterized in that: comprises a bed body (1), a first moving component arranged on the bed body (1) in a sliding way and a radiotherapy device (4) arranged below the first moving component in a sliding way; the moving direction of the first moving assembly is vertical to the moving direction of the radiotherapy device (4);

a first driving part which enables the first moving assembly to move is arranged between the first moving assembly and the bed body (1), and a second driving part which enables the radiotherapy device (4) to move is arranged between the radiotherapy device (4) and the first moving assembly;

the bed body (1) is internally provided with a human body shape following component which penetrates through the upper surface of the bed body (1).

2. The improved radiotherapy device for oncology department of claim 1, wherein: the human body shape following assembly comprises a plurality of first ejector rods (5) which are arranged at equal intervals, the first ejector rods (5) are vertically arranged, the bottom ends of the first ejector rods (5) are fixedly connected with output shafts of first linear motors (501), the top ends of the first ejector rods (5) are fixedly connected with first sensors (502), the first ejector rods (5) penetrate through the upper surface of the bed body (1), and the first linear motors (501) are fixedly connected with the bed body (1).

3. The improved radiotherapy device for oncology department of claim 2, wherein: and a pressure sensor is fixedly connected between the output shaft of the first linear motor (501) and the first ejector rod (5).

4. The improved radiotherapy device for oncology department of claim 1, wherein: the first moving assembly comprises first moving blocks (3) which are connected to two sides of the bed body (1) in a sliding mode, the top of each first moving block (3) is fixedly connected with a first cross beam (303), the first driving portion is arranged on the inner side of each first moving block (3), and the first driving portion is fixedly connected to two sides of the bed body (1).

5. The improved radiotherapy device for oncology department of claim 4, wherein: the first driving portion comprises first mounting grooves (2) which are symmetrically and fixedly connected to two sides of the bed body (1), a first lead screw (201) is connected to the first mounting grooves (2) in a rotating mode, a first nut (301) is connected to the first lead screw (201) in a threaded mode, the first nut (301) is fixedly connected to the inner side of the first moving block (3), the first nut (301) is connected to the inner wall of the first mounting groove (2) in a sliding mode, the first lead screw (201) is connected to an output shaft of a first servo motor (202) in a shaft coupling mode, and the first servo motor (202) is fixedly connected with the first mounting groove (2).

6. The improved radiotherapy device for oncology department of claim 5, wherein: the second driving part comprises a second lead screw (304), a sliding groove is formed in the lower surface of the first cross beam (303), the second lead screw (304) is rotatably connected in the sliding groove, a second nut (305) is connected to the second lead screw (304) in a threaded manner, the second nut (305) is in sliding fit with the inner wall of the sliding groove, an output shaft of a second servo motor (302) is coupled to the second lead screw (304), the second servo motor (302) is fixedly connected with the first cross beam (303), the axis of the second lead screw (304) is perpendicular to the axis of the first lead screw (201), and the second nut (305) is fixedly connected to the top of the radiotherapy device (4).

7. The improved radiotherapy device for oncology department of claim 2, wherein: a plurality of first through holes (102) are formed in the top surface of the bed body (1), and the first ejector rod (5) penetrates through the first through holes (102) to be in sliding fit.

8. The improved radiotherapy device for oncology department of claim 2, wherein: a fixing plate (101) is fixedly connected to the machine body of the first linear motors (501), and the fixing plate (101) is fixedly connected with the inside of the bed body (1).

9. The improved radiotherapy device for oncology department of claim 2, wherein: the first sensor (502) is a distance sensor.