CN211245253U

CN211245253U - A location auxiliary device for radiotherapy

Info

Publication number: CN211245253U
Application number: CN201922170684.0U
Authority: CN
Inventors: 杨涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-14
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a positioning auxiliary device for radiotherapy, a turntable which rotates horizontally is arranged at the bottom of a diagnosis and treatment table, the diagnosis and treatment table comprises a base and a bed body, and the base can drive the bed body to move back and forth and move up and down; the frame is the loop configuration, and frame middle part is passed to bed body one end, frame one side fixed mounting has the radiation therapy module, the radiation therapy module front end is provided with the radiation therapy output, the frame top still is provided with the detector array that is used for detecting charged particle. The device can effectively ensure that the charged particle beam can irradiate the appointed area of a patient through the co-positioning assistance of the simple detector array and the horizontal module, and effectively reduce the possibility that the surrounding healthy cells can not be damaged or killed; meanwhile, the bed body is leveled by adopting the horizontal module, so that the error is further reduced, the accuracy of the radiotherapy process is improved, and the medical treatment popularization and use are facilitated.

Description

A location auxiliary device for radiotherapy

Technical Field

The utility model relates to a radiotherapy equipment field, concretely relates to location auxiliary device for radiotherapy.

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); stereotactic Radiosurgery (SRS) comprises an X-Knife (X-Knife), a gamma Knife (Y-Knife) and a radiowave Knife (Cyber-Knife), and the X-Knife, the gamma Knife and the radiowave Knife belong to the field of stereotactic radiotherapy, and are characterized by three-dimensional, small-field, cluster, fractional and large-dose irradiation, which requires higher positioning precision and faster dose attenuation outside a target area.

The efficacy of radiation therapy depends on the sensitivity of the radiation, and the degree to which different tissues and organs, as well as various tumor tissues, respond differently after exposure to radiation. Radiosensitivity is related to the proliferative cycle and pathological grade of tumor cells, i.e., actively proliferating cells are more sensitive than non-proliferating cells, with higher cell differentiation giving lower radiosensitivity and vice versa. In addition, the oxygen content of tumor cells directly affects the radiosensitivity, for example, the early stage tumor has small volume and good blood circulation, the treatment effect is good when the number of hypoxic cells is small, the late stage tumor has large volume and poor blood circulation in the tumor, and even if the center has necrosis, the radiosensitivity is low; squamous carcinoma growing in local area has better blood circulation and higher sensitivity than tumor in buttocks and limbs; local combined infection of tumor, poor blood circulation (more hypoxic cells), and decreased radiosensitivity. Therefore, keeping the irradiated part clean and preventing infection and necrosis are important conditions for improving the sensitivity of radiotherapy.

In radiation therapy, in order to ensure safety and effectiveness, precise control of the dose of radiation and the location of delivery is required to ensure that surrounding healthy cells are not harmed or killed. It is desirable to provide a positioning aid detection device that accurately assesses the beam end position during treatment so that radiation treatment can be altered or stopped when the actual in vivo beam end is not at the desired location.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing a positioning auxiliary detection device for radiotherapy of an improvement precision.

In order to realize the technical purpose, the utility model discloses a scheme is: a positioning auxiliary device for radiotherapy comprises a rack and a diagnosis and treatment table, wherein a horizontally rotating turntable is arranged at the bottom of the diagnosis and treatment table, the diagnosis and treatment table comprises a machine base and a bed body, and the machine base can drive the bed body to move back and forth and up and down;

the bed body is of an annular structure, one end of the bed body penetrates through the middle of the bed body, a radiotherapy module is fixedly mounted on one side of the bed body, a radiotherapy output end is arranged at the front end of the radiotherapy module, and a detector array for detecting charged particles is further arranged at the top of the bed body;

the bed body is further provided with a shallow groove, a horizontal module used for correcting the bed body can be installed on the shallow groove, the horizontal module comprises a horizontal ruler and a bottom plate, the horizontal ruler is L-shaped, a sliding rail and a sliding rod are arranged on the bottom plate, the sliding rod is located in the sliding rail, and the horizontal ruler can horizontally slide along the sliding rod.

Preferably, a vertical laser lamp for positioning is arranged below the detector array.

Preferably, one side of the bed body is also provided with a control handle for controlling the movement of the bed body.

Preferably, the level is further provided with scales.

The beneficial effects of the utility model are that the device can effectively ensure that the charged particle beam can irradiate the appointed area of the patient through the co-location assistance of the simple detector array and the horizontal module, thereby effectively reducing the possibility that the surrounding healthy cells can not be injured or killed; meanwhile, the bed body is leveled by adopting the horizontal module, so that the error is further reduced, the accuracy of the radiotherapy process is improved, and the medical treatment popularization and use are facilitated.

Drawings

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

fig. 2 is a schematic structural view of a horizontal module in a top view;

fig. 3 is a schematic structural diagram of the side view surface of the horizontal module of the present invention.

Detailed Description

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

As shown in fig. 1-3, specific embodiment be a location auxiliary device for radiotherapy, include frame 1 and diagnose a 2, it is provided with horizontal pivoted carousel 3 to diagnose 2 bottoms of platform, it includes frame 201 and bed body 202 to diagnose platform 2, frame 201 can drive bed body 202 back-and-forth movement and reciprocate, in this embodiment, changes the horizontal position of frame through carousel 3, through the vertical position of brake valve lever 10 control frame.

Frame 1 is the loop configuration, and frame 1 middle part is passed to bed body 202 one end, and the region at the frame middle part that the bed body is located is the radiotherapy region, 1 one side fixed mounting of frame has radiotherapy module 4, radiotherapy module 4 front end is provided with radiotherapy output 5 for launch charged particle beam, frame 1 top still is provided with detector array 6 that is used for detecting charged particle. Traditional detector module sets up under the bed body front end, can detect the charged particle intensity that passes the human body, and this application adopts the detector array, detects the charged particle of reflection. When the device is used, the angle of the radiotherapy output end is adjusted to aim at the appointed area of a patient, the detector array can be moved closer to or away from the bed body, and the detector array is kept parallel to the charged particle beam.

In order to correct the initial position of the detector array, laser light is emitted through a vertical laser lamp 9 below the detector array 6, and the initial position of the detector array can be corrected by the position of the laser light.

The device still has more accurate location auxiliary device, still be provided with shallow slot 7 on the bed body 202, can install the horizontal module 8 that is used for the bed body 202 to rectify on the shallow slot 7, horizontal module 8 arranges in the shallow slot, flushes with the bed body, horizontal module 8 includes spirit level 801 and bottom plate 802, spirit level 801 is the L type, be provided with slide rail 803 and slide bar 804 on the bottom plate 802, slide bar 804 is located the slide rail, and spirit level 801 can follow slide bar 804 horizontal slip, and the slip spirit level makes the bed body level, and further the device of treating of keeping flat of essence still is provided with the scale on the spirit level simultaneously. The utility model provides a horizontal module easy operation installs during the use in the shallow slot on the bed body, and the slip level bar can carry out the levelness to one section region of the bed body and detect, and easy operation is swift, and detection speed is fast.

The device can effectively ensure that the charged particle beam can irradiate the appointed area of a patient through the co-positioning assistance of the simple detector array and the horizontal module, and effectively reduce the possibility that the surrounding healthy cells can not be damaged or killed; meanwhile, the bed body is leveled by adopting the horizontal module, so that the error is further reduced, the accuracy of the radiotherapy process is improved, and the medical treatment popularization and use are facilitated.

The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.

Claims

1. A positioning aid for radiotherapy, comprising: the diagnosis and treatment table comprises a frame and a diagnosis and treatment table, wherein a rotary table which rotates horizontally is arranged at the bottom of the diagnosis and treatment table, the diagnosis and treatment table comprises a machine base and a bed body, and the machine base can drive the bed body to move back and forth and up and down;

2. A positioning aid for radiation therapy according to claim 1, wherein: and a vertical laser lamp for positioning is arranged below the detector array.

3. A positioning aid for radiation therapy according to claim 1, wherein: one side of the bed body is also provided with a control handle for controlling the bed body to move.

4. A positioning aid for radiation therapy according to claim 1, wherein: the level bar is also provided with scales.