CN211097098U

CN211097098U - Vertical plate type patient support device for radiotherapy

Info

Publication number: CN211097098U
Application number: CN201921038887.8U
Authority: CN
Inventors: 戴建荣; 李明辉; 牛传猛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-07-28
Anticipated expiration: 2029-07-04

Abstract

A riser-style patient support device for radiation therapy is disclosed, the patient support device comprising: the vertical plate is used for supporting a patient in a standing or sitting posture, the fixing piece is connected to the vertical plate and used for fixing the patient on the vertical plate, and the motion platform is connected with the vertical plate and used for driving the vertical plate to perform multi-dimensional motion. By using the device, the structure of the existing radiotherapy equipment is simplified and the cost of the radiotherapy equipment is reduced on the premise of ensuring the same irradiation effect.

Description

Vertical plate type patient support device for radiotherapy

Technical Field

The present application relates to the field of radiation therapy, and more particularly, to a patient support device for use in radiation therapy.

Background

Radiotherapy plays an important role in the field of tumor therapy as one of conventional means of tumor therapy. Photon and electron beam radiotherapy based on linear accelerator technology is most widely used in radiotherapy at present, and proton and heavy ion beam radiotherapy based on synchrotron or cyclotron technology is also beginning to be gradually applied. Research shows that the effect of proton and heavy ion radiotherapy is superior to photon and electron radiotherapy, and especially the toxic side effect and adverse reaction caused by radiotherapy are obviously less than those of the latter.

During the radiotherapy process based on the linear accelerator radiotherapy technology, a patient generally lies on a treatment bed, and the part where the tumor is located is fixed by using a positioning accessory such as a thermoplastic net or a thermoplastic film. Then, multi-angle fixed field or continuous angle rotary irradiation around the target area is realized by rotating the accelerator frame, so that the purposes that the dose is concentrated in the target area and the receiving capacity of peripheral organs at risk is reduced are achieved; in addition, image-guided radiotherapy for a patient using on-board Cone Beam CT (Cone Beam CT, CBCT) of a linear accelerator is an effective method for improving the positioning accuracy. The premise of realizing the functions is that a rack of the rotary accelerator is needed, the weight of the rack of the existing linear accelerator is more than 1 ton, and the mechanical rotation is relatively easy to realize. The gantry weight of the synchrotron or cyclotron required by proton and heavy ion radiotherapy reaches hundreds of tons, and the precise rotation of the gantry by the current technology is very complex and difficult and extremely high in cost. For this reason, this type of accelerator has a beam irradiation mode using a gantry fixed. Under the supporting and fixing mode of the traditional treatment bed, because the treatment bed only supports the horizontal state, under the condition that the machine frame cannot rotate, only a few fixed angles installed and fixed in the machine room can be selected for fixed field irradiation, and the rotary field irradiation and CBCT image guided radiotherapy technology cannot be directly applied, so that the irradiation effect is greatly reduced, and the curative effect of a patient is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, embodiments of the present application provide a stand-up type patient support device for radiation therapy. The vertical plate type patient supporting device supports and fixes a patient in a standing or sitting posture, can translate and incline in a three-dimensional direction, can rotate along the axial direction of the head and the feet to replace the rotation of a rack of an accelerator, can simplify the structure of the existing radiotherapy equipment and reduce the cost of the radiotherapy equipment on the premise of ensuring the same irradiation effect.

In order to achieve the above object, the present invention provides a vertical plate type patient support device for radiotherapy, comprising a vertical plate, a fixing member and a motion platform, wherein the vertical plate is used for supporting a patient in a standing or sitting posture, the fixing member is connected to the vertical plate for fixing the patient on the vertical plate, and the motion platform is connected to the vertical plate for driving the vertical plate to perform multidimensional motion.

For example, the motion platform has six-dimensional direction motion function. The functions of patient positioning and positioning correction are realized through three-dimensional direction translation and three-dimensional direction inclination; the patient is driven to rotate by the axial rotation of the head and the feet, so that the rack of the accelerator is replaced to rotate, and the multi-angle fixed field irradiation radiotherapy, the rotary irradiation radiotherapy, the CBCT guided radiotherapy and other various technical treatments are realized.

In some embodiments of the riser patient support for radiation therapy, the motion platform may be divided into multiple layers, wherein any one or more of the multiple layers is used to cause the riser to perform one or more dimensional motions. For example, the motion platform includes an upper motion platform, a middle motion platform, and a lower motion platform, where the lower motion platform makes the vertical plate perform a lifting motion, the middle motion platform makes the vertical plate perform a rotating motion, and the upper motion platform makes the vertical plate perform a horizontal movement and an inclination motion. As another example, a lower platform may be used to enable the patient support device to perform a head and foot axial rotation or lift function.

In some embodiments of the stand-plate patient support device for radiation therapy, the motion platform is mounted with a powered drive for driving the stand plate to perform multi-dimensional motion.

In some embodiments of the vertical plate type patient support device for radiotherapy, the vertical plate is vertically or obliquely installed on the motion platform for supporting, fixing and posture adjusting a patient in a standing or sitting posture, for example.

In some embodiments of the stand-up patient support apparatus for radiotherapy, the stand is provided with a locking member of the fixing member, and the locking member is mounted at a position of the stand corresponding to the head and neck and/or the thoracoabdominal and/or knee of the patient for locking the fixing member on the stand.

In some embodiments of the riser patient support for radiation therapy, the riser is provided with a seat assembly for seating a patient.

In some embodiments of the riser patient support apparatus for radiation therapy, the seat assembly has an open-close configuration, the open-close configuration of the seat assembly opens when the patient is in a sitting position, allowing the seat assembly to open; when the patient is in a standing state, the opening and closing structure of the seat assembly is closed, so that the seat assembly is folded.

In some embodiments of the riser patient support for radiation therapy, the riser is further provided with a recess for receiving the seat assembly when the seat assembly is folded.

In some embodiments of the vertical plate type patient support device for radiotherapy, the vertical plate is provided with scale marks for assisting the patient to position. The graduation marks can be arranged on the two side surfaces of the vertical plate.

In some embodiments of the riser-type patient support device for radiation therapy, the riser is fitted with a handrail for the patient to grasp. For example, the armrest is mounted on the top of the riser and/or below the seat assembly, is T-shaped or otherwise, and is adjustable in position.

Carry on the patient through this kind of device and carry out the multidimensional movement, the utility model discloses there is following beneficial effect:

(1) the radiation therapy can be carried out under the condition of beam fixation, the structure of the existing radiation therapy equipment is greatly simplified, and the cost of the radiation therapy equipment is reduced;

(2) the flexibility of the placement of the patient body during radiotherapy can be greatly improved;

(3) various radiation therapy irradiation techniques can be implemented.

Drawings

The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally represent like parts or steps.

Fig. 1 is a schematic structural diagram of a device according to the present application.

Fig. 2 is a schematic view of the use of the device according to the present application when the patient is in a standing position.

Fig. 3 is a schematic view of the use of the device according to the present application when the patient is in a sitting position.

List of reference numerals

101 lower layer motion platform

102 middle layer motion platform

103 upper motion platform

201 body plate

202 upper handle

203 thermoplastic mesh locking apertures

204 headrest locking hole

205 thermoplastic film locking strip

206 lines

207 groove

208 seat assembly

209 lower handle

301 thermoplastic web

302 thermoplastic film

4 patients

501 kV radiation source

502 kV detection plate

7 therapeutic beam radiation source

8 ground

Detailed Description

Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and that the present application is not limited by the example embodiments described herein.

SUMMARY

The gantry weight of synchrotrons or cyclotrons required for proton or heavy ion beam radiotherapy based on synchrotron or cyclotron technology reaches hundreds of tons, and the precise rotation of the gantry by current technology is very complicated and difficult and very expensive. Therefore, the application provides a patient support device for radiotherapy, when radiotherapy is performed, the patient is carried on the multidimensional movement device for radiotherapy to perform multidimensional movement, and the frame of the accelerator is fixed, so that the structure of the existing radiotherapy equipment is simplified and the cost of the radiotherapy equipment is reduced on the premise of ensuring the same irradiation effect.

Exemplary devices

Embodiments of the apparatus according to the present application will be described in further detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

As shown in fig. 1, the apparatus according to the present application includes a motion platform, such as a lower layer motion platform 101, a middle layer motion platform 102 and an upper layer motion platform 103, which are arranged in sequence from top to bottom; a riser, such as body panel 201, the body panel 201 having an armrest, thermoplastic mesh locking apertures 203, headrest locking apertures 204, thermoplastic film locking bars 205, tick marks 206, recess 207, and seat assembly 208, where the armrest may include, for example, an upper handle 202 and/or a lower handle 209; a securing member, such as a thermoplastic web 301, and a thermoplastic film 302.

Here, the body panel 201 may be connected, e.g. fixedly connected, or pivotably connected, or translationally connected to the motion platform, in particular the upper motion platform 103. In particular, the body plate 201 may be fixedly mounted on a motion platform, such as the upper motion platform 103, for example in an upright or inclined form, for example for support fixation and posture adjustment of a patient in a standing or sitting position.

The lower motion platform 101, the middle motion platform 102, and the upper motion platform 103 are configured to rotate the body plate 201 in multiple dimensions, such as translating in three dimensions and rotating the body plate 201 in three dimensions, for example, the lower motion platform 101 raises and lowers the body plate 201 to different heights, the middle motion platform 102 rotates the body plate 201 to different angles, and the upper motion platform 103 moves and tilts the body plate 201 horizontally. Of course, the lower motion platform 101, the middle motion platform 102 and the upper motion platform 103 may move the body plate 201 in other manners, for example, but not limited to, the lower motion platform 101 horizontally moves the body plate 201, the middle motion platform 102 lifts the body plate 201, the upper motion platform 103 rotates the body plate 201 and the inclined body plate 201. Additionally, devices according to the present application may also include fewer or more than three motion stages, such as a single motion stage where the single motion stage causes body panel 201 to perform six-dimensional motion, or a four motion stage where the first and second motion stages simultaneously cause body panel 201 to perform one or more dimensional motions, or the second and third motion stages simultaneously cause body panel 201 to perform one or more dimensional motions, or the third and fourth motion stages simultaneously cause body panel 201 to perform one or more dimensional motions. In one example of an apparatus according to the present application, the motion platform (including one or both of the lower motion platform 101, the middle motion platform 102, and the upper motion platform 103) may be mounted below the ground with the top being at a height close to the ground to facilitate patient positioning.

The body plate 201 is provided with an upper handle 202 and a lower handle 209 for the patient to use, as shown in fig. 1, the upper handle 202 is T-shaped, and the position can be adjusted.

The body plate 201 is also provided with thermoplastic net locking holes 203, headrest locking holes 204 and thermoplastic film locking strips 205, and in use, the fixing bolts on the thermoplastic net 301 are pressed to be inserted into the thermoplastic net locking holes 203 on the body plate 201, so as to lock the thermoplastic net 301 on the body plate 201; the thermoplastic film locking strip 205 on the body panel 201 is pushed to lock the thermoplastic film 302 on the body panel 201.

On both side surfaces of the body plate 201, there are provided graduation marks 206 for assisting the patient to reach a desired position.

A groove 207 and a seat assembly 208 are further arranged on the body plate 201, wherein the groove 207 is used for accommodating the seat assembly 208, the seat assembly 208 can have an opening and closing structure to realize an opening and closing function, and when a patient is in a sitting state, the opening and closing structure of the seat assembly 208 is opened, so that the seat assembly 208 is opened for the patient to sit; when the patient is in a standing position, the open-close structure of the seat assembly 208 is closed, so that the seat assembly 208 is folded and retracted into the groove 207. The opening and closing structure of the seat assembly 208 may be a spring or a resilient rod, among other structures known in the art. Of course, the seat assembly may not have an opening and closing structure.

As shown in fig. 2 and 3, the device according to the present application is further provided with a thermoplastic web 301 and a thermoplastic film 302, which are connected to the body panel 201 for securing the patient to the body panel 201. Of course, the device according to the present application may also be provided with straps, masks, body covers, headrests, vacuum pads, foam glue, etc. to secure the patient to the body panel 201.

Application example 1

Fig. 2 shows a schematic view of a use of the device according to the present application when the patient is in a standing position. When the device according to the present application is used to immobilize a patient 4 with a tumor in the thoracic and abdominal region, as shown in fig. 2, the lower motion platform 101, the middle motion platform 102 and the upper motion platform 103 are in an initial position, in which the top of the upper motion platform 103 is substantially flush with the ground 8; seat assembly 208 on body plate 201 is received in recess 207; the patient 4 stands on the upper movement platform 103, leans against the body plate 201, lifts up with both hands, and grasps the upper handle 202; the position of the reference scale 206 indicates that the thermoplastic film 302 covers the treatment site and the knees of the patient 4, respectively, and the thermoplastic film locking bar 205 on the body plate 201 is pushed to lock the thermoplastic film 302 directly to the body plate 201. According to the indication of the outer laser lamp or other positioning devices, the patient 4 is moved to the isocenter position through the lifting of the lower layer motion platform 101 and the translation of the upper layer motion platform 103, and the positioning process is completed. The kV radiation source 501 is started, the middle-layer moving platform 102 rotates 180 degrees or 360 degrees, the kV detection plate 502 obtains perspective images of corresponding angles, CBCT images are obtained after reconstruction, and the CBCT images are registered with the planned CT images to obtain positioning errors. The positioning correction is completed through the lifting of the lower layer motion platform 101 and the horizontal movement and the inclination of the upper layer motion platform 103. Starting the therapeutic beam radiation source 7, rotating to different angles through the middle layer moving platform 102, and realizing coplanar multi-angle fixed field irradiation or rotary irradiation; the upper layer moving platform 103 is inclined at a certain angle, and the middle layer moving platform 102 rotates to different angles, so that non-coplanar multi-angle fixed field irradiation or rotary irradiation is realized.

Application example 2

Fig. 3 shows a schematic view of the use of the device according to the present application when the patient is seated. When the device according to the present application is used to immobilize a patient 4 with a head and neck neoplasm, as shown in fig. 3, the lower motion stage 101, the middle motion stage 102 and the upper motion stage 103 are in an initial position, where the top of the upper motion stage 103 is substantially flush with the ground. A headrest locking hole 209 on the headrest insert body plate 201, the seat assembly 208 opens from the recess 207, the patient 4 sits on the seat assembly 208, the headrest, the backrest body plate 201, the lower handle 209 hanging down with both hands and grasping under the seat assembly 208; the thermoplastic net 301 covers the treatment site of the patient, and the fixing pins on the thermoplastic net 301 are pressed to be inserted into the thermoplastic net locking holes 203 on the body plate 201, so that the thermoplastic net 301 is locked on the body plate 201. According to the indication of the outer laser lamp or other positioning devices, the patient 4 is moved to the isocenter position through the lifting of the lower layer motion platform 101 and the translation of the upper layer motion platform 103, and the positioning process is completed. The kV radiation source 501 is started, the middle-layer moving platform 102 rotates 180 degrees or 360 degrees, the kV detection plate 502 obtains perspective images of corresponding angles, CBCT images are obtained after reconstruction, and the CBCT images are registered with the planned CT images to obtain positioning errors. The positioning correction is completed through the lifting of the lower layer motion platform 101 and the horizontal movement and the inclination of the upper layer motion platform 103. Starting the therapeutic beam radiation source 7, rotating to different angles through the middle layer moving platform 102, and realizing coplanar multi-angle fixed field irradiation or rotary irradiation; the upper layer moving platform 103 is inclined at a certain angle, and the middle layer moving platform 102 rotates to different angles, so that non-coplanar multi-angle fixed field irradiation or rotary irradiation is realized.

The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.

The block diagrams of devices, apparatuses, systems referred to in this application are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

It should also be noted that in the devices, apparatuses, and methods of the present application, the components or steps may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present application.

In this document, modifiers such as "first," "second," etc., without quantity, are intended to distinguish between different elements/components/circuits/modules/devices/steps and are not intended to emphasize order, positional relationships, importance, priority, etc. In contrast, modifiers such as "first," "second," and the like with quantitative terms may be used to emphasize different elements/components/circuits/modules/devices/steps in order, location, degree of importance, priority, and the like.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims

1. A riser-type patient support apparatus for radiation therapy, the patient support apparatus comprising: the vertical plate is used for supporting a patient in a standing or sitting posture, the fixing piece is connected to the vertical plate and used for fixing the patient on the vertical plate, and the motion platform is connected with the vertical plate and used for driving the vertical plate to perform multi-dimensional motion.

2. The riser patient support apparatus of claim 1, wherein the motion platform is divisible into a multi-layered structure, wherein any one or more of the multi-layered structure is configured to cause the riser to perform one or more dimensional motions.

3. The patient support apparatus of claim 1, wherein the motion platform is configured to mount a powered drive for driving the riser to perform multi-dimensional motion.

4. The riser patient support apparatus for radiation therapy according to claim 1, wherein the riser is mounted on the motion platform upright or inclined.

5. The stand type patient support device for radiation therapy according to claim 1, wherein said stand plate is provided with a locking member of said fixing member, installed at a position of said stand plate corresponding to the patient's head and neck and/or thoracoabdominal and/or knee for locking said fixing member on said stand plate.

6. The riser patient support apparatus of claim 1, wherein the riser is provided with a seat assembly for seating a patient.

7. The riser patient support apparatus for radiation therapy according to claim 6, wherein the seat assembly has an open-close configuration, wherein when the patient is in a sitting position, the open-close configuration of the seat assembly opens to allow the seat assembly to open; when the patient is in a standing state, the opening and closing structure of the seat assembly is closed, so that the seat assembly is folded.

8. The riser patient support apparatus of claim 7, wherein the riser is further provided with a recess for receiving the seat assembly when the seat assembly is folded.

9. The patient support apparatus of claim 1, wherein the vertical plate is provided with graduations to assist in positioning the patient.

10. The riser patient support apparatus of claim 1, wherein the riser mounts a hand rest for a patient to grasp.