CN220237583U

CN220237583U - Positioning device

Info

Publication number: CN220237583U
Application number: CN202321517800.1U
Authority: CN
Inventors: 牛瑞军; 陶娜; 郭晴; 陶发利; 成坚强; 贾怀琳; 魏玺仪; 高力英; 魏世鸿
Original assignee: Gansu Academy Of Medical Sciences Gansu Cancer Hospital Gansu Cancer Research Institute Gansu Cancer Hospital Of Integrated Traditional Chinese And Western Medicine
Current assignee: Gansu Academy Of Medical Sciences Gansu Cancer Hospital Gansu Cancer Research Institute Gansu Cancer Hospital Of Integrated Traditional Chinese And Western Medicine
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2023-12-26
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses a positioner, which comprises a base and a radiotherapy probe, wherein a transverse moving mechanism for driving the radiotherapy probe to move forwards and backwards is fixedly arranged on the upper surface of the base, a lifting mechanism for driving the radiotherapy probe to move vertically is arranged on the base, an arc-shaped positioning frame is arranged at the lifting end of the lifting mechanism, an angle adjusting mechanism for driving the radiotherapy probe to rotate along the edge of the arc-shaped positioning frame is arranged on the arc-shaped positioning frame, and a fine adjusting mechanism for fine adjusting the distance between the radiotherapy probe and a tumor part of a patient is fixedly arranged on one side of the angle adjusting mechanism.

Description

Positioning device

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a positioner.

Background

Tumor radiotherapy is a local treatment method for treating tumors by utilizing radioactive rays, wherein the radioactive rays comprise alpha rays, beta rays, gamma rays generated by radioactive isotopes, x-rays, electron beams, proton beams, other particle beams generated by various x-ray treatment machines or accelerators, and the like, about 70 percent of cancer patients need to be treated by the radioactive rays in the process of treating cancers, about 40 percent of cancers can be radically treated by the radioactive rays, and the effect and the position of the radioactive rays in the tumor treatment are increasingly prominent, so that the tumor radiotherapy has become one of main means for treating malignant tumors.

The Chinese patent grant publication No. CN217886815U discloses a radiotherapy positioner for oncology, which comprises a cylinder, one side of the cylinder is provided with a movable rod, and one side of the movable rod is fixedly connected with a first rack. This radiotherapy locator of oncology, through cylinder, movable rod, first rack, slide, recess, first gear, dwang, second gear, second rack, the cooperation setting of second auxiliary rod, radiotherapeutic appearance, radiotherapy probe, third auxiliary rod and third mobile jib.

When the above-mentioned publication uses, the staff opens the switch of cylinder, and the carriage release lever begins to drive first rack and makes reciprocating motion, and first rack removes in the recess on the slide, and first gear and first rack meshing make first gear and dwang and second gear rotate, and second gear and second rack meshing, the second auxiliary rod upwards moves, because the cooperation of third auxiliary rod and third mobile jib to the staff can adjust the height of radiotherapy appearance and radiotherapy probe.

The above-described positioner, however, still suffers from the following drawbacks when in use:

1. the angle of the radiotherapy probe cannot be adjusted according to the tumor part of the patient;

2. the position of the radiotherapy probe cannot be adjusted back and forth according to the tumor part of the patient.

For this purpose we propose a positioner.

Disclosure of Invention

It is an object of the present utility model to provide a positioner that solves or at least alleviates one or more of the above-mentioned and other problems of the prior art.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

a positioner, comprising a base and a radiotherapy probe;

the upper surface of the base is fixedly provided with a transverse moving mechanism for driving the radiotherapy probe to move forwards and backwards;

the base is provided with a lifting mechanism for driving the radiotherapy probe to vertically move up and down;

the lifting end of the lifting mechanism is provided with an arc-shaped locating frame, the arc-shaped locating frame is provided with an angle adjusting mechanism used for driving the radiotherapy probe to rotate along the edge of the arc-shaped locating frame, and one side of the angle adjusting mechanism is fixedly provided with a fine adjusting mechanism used for fine adjusting the distance between the radiotherapy probe and a tumor part of a patient.

In one type of positioner according to the present utility model, the lateral movement mechanism includes a linear module fixedly mounted on top of the base, and a moving seat fixedly mounted on a slider of the linear module.

According to the positioner disclosed by the utility model, the two ends of the top of the base are fixedly connected with the vertical plates, the guide rods are fixedly connected between the two vertical plates, and the movable seat is sleeved on the guide rods in a sliding manner.

According to the positioner disclosed by the utility model, the lifting mechanism comprises the lifting electric cylinder, the top of a piston rod of the lifting electric cylinder is fixedly connected with the supporting seat, the top of the supporting seat is fixedly connected with the bottom of the arc-shaped positioning frame, and the bottom of the lifting electric cylinder is fixedly arranged at the top of the movable seat.

According to the positioner disclosed by the utility model, the angle adjusting mechanism comprises a motor and a gear, the upper surface of the arc-shaped positioning frame is fixedly connected with an arc-shaped rack, the gear is meshed with the arc-shaped rack, the gear is fixedly connected to a rotating shaft of the motor, and the motor is arranged on the arc-shaped positioning frame through a limiting assembly.

According to the positioner disclosed by the utility model, the limiting component comprises the inverted U-shaped frame, the motor is fixedly arranged at the inner top of the inverted U-shaped frame, the limiting roller components are rotatably arranged at the two ends of the inner side of the inverted U-shaped frame, each limiting roller component comprises an upper roller and a lower roller, the upper roller is in rolling contact with the upper surface of the arc-shaped positioning frame, and the lower roller is in rolling contact with the lower surface of the arc-shaped positioning frame.

According to the positioner disclosed by the utility model, the limit roller assemblies positioned at the same end of the inverted U-shaped frame are not lower than two groups.

According to the positioner disclosed by the utility model, the top and the bottom of two opposite sides of the arc-shaped positioning frame are provided with the guide grooves, and the limiting roller assemblies are arranged on the guide grooves in a rolling way.

According to the positioner disclosed by the utility model, the fine adjustment mechanism comprises a fine adjustment electric cylinder and a mounting seat, the mounting seat is fixedly connected to one side of the inverted U-shaped frame, the fine adjustment electric cylinder is fixedly arranged on the mounting seat, and the radiotherapy probe is fixedly arranged at the bottom of a piston rod of the fine adjustment electric cylinder.

The positioner provided by the utility model further comprises a radiotherapy bed, wherein the radiotherapy bed is fixedly arranged on the base, and the arc-shaped positioning frame is positioned above the radiotherapy bed.

The utility model has at least the following beneficial effects:

the utility model can rapidly adjust the position of the radiotherapy probe according to the tumor position in the patient, and effectively improves the positioning efficiency of the radiotherapy probe.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic view of a positioner according to the present utility model;

FIG. 2 is a schematic view of a lateral movement mechanism according to the present utility model;

fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Reference numerals illustrate:

1. an arc-shaped positioning frame; 101. an arc-shaped rack; 102. a guide groove;

2. an angle adjusting mechanism; 201. an inverted U-shaped frame; 202. a motor; 203. a gear; 204. a limit roller assembly;

3. a fine adjustment mechanism; 301. fine tuning an electric cylinder; 302. a mounting base;

4. a lifting mechanism; 401. lifting electric cylinders; 402. a support base;

5. a lateral movement mechanism; 501. a linear module; 502. a vertical plate; 503. a movable seat; 504. a guide rod;

6. a base; 7. a radiotherapy bed; 8. a radiation therapy probe.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the implementation process of how the technical means are applied to solve the technical problems and achieve the technical effects of the present application can be fully understood and implemented accordingly.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a positioner, which includes an arc-shaped positioning frame 1, an angle adjusting mechanism 2, a fine adjusting mechanism 3, a lifting mechanism 4, a lateral moving mechanism 5, a base 6, a radiotherapy bed 7 and a radiotherapy probe 8.

Wherein, radiotherapy bed 7 is fixed to be set up on base 6, and arc locating rack 1 is located radiotherapy bed 7's top.

Wherein, a lateral shifting mechanism 5 fixed mounting for driving radiotherapy probe 8 back and forth movement is at the upper surface of base 6, it includes sharp module 501 and removes seat 503, sharp module 501 fixed mounting is at the top of base 6, remove seat 503 fixed mounting on the slider of sharp module 501, it is more stable when removing the seat 503 back and forth movement to improve, the equal fixedly connected with riser 502 in top both ends of base 6, fixedly connected with guide bar 504 between two risers 502, it establishes on guide bar 504 to remove seat 503 slip cap, during the use, slider on the control straight line module 501 carries radiotherapy probe 8 to carry out back and forth movement as required.

Wherein, a elevating system 4 for driving vertical reciprocate of radiotherapy probe 8, it includes lift jar 401, the piston rod top fixedly connected with supporting seat 402 of lift jar 401, the top of supporting seat 402 and the bottom fixed connection of arc locating rack 1, the bottom fixed mounting of lift jar 401 is at the top of removing seat 503, through the flexible of control lift jar 401 piston rod, and then can adjust the general height of radiotherapy probe 8 relative patient.

Wherein, an angle adjustment mechanism 2 for driving radiotherapy probe 8 carries out pivoted along the edge of arc locating rack 1, it includes motor 202 and gear 203, the last fixed surface of arc locating rack 1 is connected with arc rack 101, gear 203 meshes with arc rack 101 mutually, gear 203 fixed connection is in the pivot of motor 202, motor 202 passes through spacing subassembly setting on arc locating rack 1, spacing subassembly includes and falls U type frame 201, motor 202 fixed mounting is at the interior top of falling U type frame 201, fall the inboard both ends of U type frame 201 and all rotate and set up spacing roller assembly 204, spacing roller assembly 204 includes gyro wheel and lower gyro wheel, go up gyro wheel and the upper surface rolling contact of arc locating rack 1, lower gyro wheel and the lower surface rolling contact of arc locating rack 1, in order to improve the stability when motor 202 removes, the guide way 102 has all been seted up to the top and the bottom that are located the same one end of falling U type frame 201, spacing roller assembly 204 roll and set up on guide way 102, through the guide way 102 that sets up, effectively avoid falling U type frame 201 when moving to the left and right side and rocking.

When the radiation therapy probe 8 is used, the rotating shaft of the motor 202 can be controlled to rotate forward or reversely as required, so that the radiation therapy probe 8 can rotate along the edge of the arc-shaped positioning frame 1 by a moving angle, and then the radiation therapy probe 8 can be subjected to angle adjustment.

Wherein, a fine setting mechanism 3 for finely tuning the distance between radiotherapy probe 8 and the tumor part of patient, it includes fine setting jar 301 and mount pad 302, and mount pad 302 fixed connection is in one side of falling U type frame 201, and fine setting jar 301 fixed mounting is on mount pad 302, and radiotherapy probe 8 fixed mounting is in the bottom of the piston rod of fine setting jar 301. The distance between the radiotherapy probe 8 and the tumor part of the patient can be finely adjusted by controlling the expansion and contraction of the piston rod of the fine adjustment electric cylinder 301.

In order to facilitate understanding of the above technical solutions of the present utility model, the following describes in detail the working principle or operation manner of the present utility model in the actual process.

Working principle: when the radiotherapy device is used, a patient lies on the radiotherapy bed 7 firstly, then the linear module 501 is controlled according to the tumor position of the patient, the radiotherapy probe 8 is moved to the upper part of the tumor position of the patient, then the piston rod of the lifting electric cylinder 401 is controlled to stretch out and draw back, the distance between the radiotherapy probe 8 and the patient is roughly adjusted, then the motor 202 is controlled to start according to the tumor position of the patient, the radiotherapy probe 8 is driven to rotate, the radiotherapy probe 8 irradiates light to the tumor position of the patient, then the stretch out and draw back of the piston rod of the fine-tuning electric cylinder 301 is controlled according to the requirement, the distance between the radiotherapy probe 8 and the tumor position of the patient is accurately adjusted, and then radiotherapy treatment can be carried out on the patient.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. A positioner, comprising:

a base (6) and a radiotherapy probe (8);

the upper surface of the base (6) is fixedly provided with a transverse moving mechanism (5) for driving the radiotherapy probe (8) to move forwards and backwards;

the base (6) is provided with a lifting mechanism (4) for driving the radiotherapy probe (8) to vertically move up and down;

the utility model discloses a radiotherapy probe, including angle adjustment mechanism (2), elevating system (4), arc locating rack (1) are provided with to go up to be used for the drive on arc locating rack (1) radiotherapy probe (8) are followed the edge of arc locating rack (1) carries out pivoted angle adjustment mechanism (2), one side fixed mounting of angle adjustment mechanism (2) has fine setting mechanism (3) that are used for right distance between radiotherapy probe (8) and the patient tumor position carries out fine setting.

2. A positioner according to claim 1, wherein: the transverse moving mechanism (5) comprises a linear module (501) and a moving seat (503), wherein the linear module (501) is fixedly arranged at the top of the base (6), and the moving seat (503) is fixedly arranged on a sliding block of the linear module (501).

3. A positioner according to claim 2, wherein: the movable base (503) is slidably sleeved on the guide rods (504).

4. A positioner according to claim 3, wherein: elevating system (4) are including lift jar (401), the piston rod top fixedly connected with supporting seat (402) of lift jar (401), the top of supporting seat (402) with the bottom fixed connection of arc locating rack (1), the bottom fixed mounting of lift jar (401) is in the top of removing seat (503).

5. A positioner according to claim 4, wherein: the angle adjusting mechanism (2) comprises a motor (202) and a gear (203), the upper surface of the arc-shaped locating frame (1) is fixedly connected with an arc-shaped rack (101), the gear (203) is meshed with the arc-shaped rack (101), the gear (203) is fixedly connected to a rotating shaft of the motor (202), and the motor (202) is arranged on the arc-shaped locating frame (1) through a limiting component.

6. A positioner according to claim 5, wherein: the limiting assembly comprises an inverted U-shaped frame (201), the motor (202) is fixedly arranged at the inner top of the inverted U-shaped frame (201), limiting roller assemblies (204) are rotatably arranged at two ends of the inner side of the inverted U-shaped frame (201), each limiting roller assembly (204) comprises an upper roller and a lower roller, each upper roller is in rolling contact with the upper surface of the arc-shaped locating frame (1), and each lower roller is in rolling contact with the lower surface of the arc-shaped locating frame (1).

7. A positioner according to claim 6, wherein: the limit roller assemblies (204) positioned at the same end of the inverted U-shaped frame (201) are not lower than two groups.

8. A positioner according to claim 6, wherein: guide grooves (102) are formed in the top and the bottom of two opposite sides of the arc-shaped locating frame (1), and the limiting roller assemblies (204) are arranged on the guide grooves (102) in a rolling mode.

9. A positioner according to claim 6, wherein: the fine adjustment mechanism (3) comprises a fine adjustment electric cylinder (301) and a mounting seat (302), the mounting seat (302) is fixedly connected to one side of the inverted U-shaped frame (201), the fine adjustment electric cylinder (301) is fixedly mounted on the mounting seat (302), and the radiotherapy probe (8) is fixedly mounted at the bottom of a piston rod of the fine adjustment electric cylinder (301).

10. A positioner according to claim 1, wherein: still include radiotherapy bed (7), radiotherapy bed (7) are fixed to be set up on base (6), arc locating rack (1) are located the top of radiotherapy bed (7).