CN215741446U

CN215741446U - 360-degree rotary proton treatment rack

Info

Publication number: CN215741446U
Application number: CN202121973208.3U
Authority: CN
Inventors: 华庆强
Original assignee: Shanghai Qingqiang Industrial Co ltd
Current assignee: Shanghai Qingqiang Industrial Co ltd
Priority date: 2021-08-22
Filing date: 2021-08-22
Publication date: 2022-02-08
Anticipated expiration: 2031-08-22

Abstract

The utility model belongs to the technical field of proton treatment, in particular to a 360-degree rotating proton treatment rack, which comprises: the rotary drum type rotary drum cleaning machine comprises a front support and a rear support, wherein a rotary drum is rotatably supported between the front support and the rear support; the front part of the roller is provided with a winding drum; a magnet bracket is arranged outside the roller; magnets are arranged on two sides of the upper part of the magnet support, and four-stage iron chips are arranged between the magnets on two sides and on the lower side of the magnet on one side; the four-level iron chip and the magnet on the lower side of the magnet on one side extend into the roller, and the four-level iron chip and the magnet extend into the bobbin; and the front support and the rear support are provided with driving rotating mechanisms which drive the rollers to rotate. The conformal treatment can be realized, the transverse position and the longitudinal energy distribution of the beam current can be efficiently controlled, and the shape of a focus can be accurately matched; the rotating frame can rotate by 360 degrees and has extremely high precision of the position of a central point, and the beam supply at any angle can be realized.

Description

360-degree rotary proton treatment rack

Technical Field

The utility model relates to the technical field of proton treatment, in particular to a 360-degree rotating proton treatment rack.

Background

Tumors are seriously threatening the health and development of human beings and have become a worldwide problem. As one of the core approaches, radiotherapy is advancing towards precision radiotherapy: the method can reduce the damage of normal tissues while accurately increasing the tumor lethal dose, becomes the basic direction of the development of modern radiation therapy, and is an important strategy for overcoming the cancer problem of human beings.

To realize conformal treatment, the transverse position and longitudinal energy distribution of the beam current need to be controlled efficiently to match the shape of the focus accurately, and a rotating frame with extremely high precision of the position of a +/-185-degree rotating central point is needed to realize beam supply at any angle, so that a 360-degree rotating proton treatment frame is provided.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a 360 ° rotary proton treatment gantry to solve the problem of the prior art that in order to achieve conformal treatment, the transverse position and longitudinal energy distribution of beam current need to be efficiently controlled to precisely match the shape of a focus, and thus a rotary gantry with an extremely high precision of ± 185 ° rotary center point position is needed to achieve beam supply at any angle.

In order to achieve the purpose, the utility model provides the following technical scheme: a 360 ° rotating proton therapy gantry comprising:

the rotary drum type rotary drum cleaning machine comprises a front support and a rear support, wherein a rotary drum is rotatably supported between the front support and the rear support;

the front part of the roller is provided with a winding drum;

a magnet bracket is arranged outside the roller;

magnets are arranged on two sides of the upper part of the magnet support, and four-stage iron chips are arranged between the magnets on two sides and on the lower side of the magnet on one side;

the four-level iron chip and the magnet on the lower side of the magnet on one side extend into the roller, and the four-level iron chip and the magnet extend into the bobbin;

and the front support and the rear support are provided with driving rotating mechanisms which drive the rollers to rotate.

Furthermore, the front support comprises a front support seat, a front upper support frame and a front roller bead, the front support seat and the front upper support frame are connected to form a front rotating support part, the front end of the roller is inserted into the front rotating support part, the front roller bead is embedded into the contact position of the front rotating support part and the roller, and the front support seat is movably connected with the roller.

Further, the rear support includes rear support seat, back upper support frame and back ball, connect between rear support seat, the back upper support frame and constitute the back and rotate the supporting part, the rear end of cylinder inserts on the back rotates the supporting part, the back ball embedding rotates the contact department of supporting part and cylinder at the back.

Furthermore, a supporting frame is arranged in the roller and is used for supporting and connecting the four-level iron chip and the magnet in the roller.

Further, drive slewing mechanism includes speed reduction driving motor, drive gear and ring gear, the ring gear cover is on the outer wall of cylinder, just ring gear and cylinder coaxial arrangement, speed reduction driving motor installs in the front on support, the back support, speed reduction driving motor's output shaft drive gear, drive gear and ring gear meshing.

Compared with the prior art, the utility model has the beneficial effects that:

1) the conformal treatment can be realized, the transverse position and the longitudinal energy distribution of the beam current can be efficiently controlled, and the shape of a focus can be accurately matched;

2) the rotating frame can rotate by 360 degrees and has extremely high precision of the position of a central point, and the beam supply at any angle can be realized.

Drawings

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

FIG. 2 is an exploded view of FIG. 1 of the present invention;

FIG. 3 is a schematic view of the connection structure of the magnet holder, the magnet and the four-stage iron core plate according to the present invention;

fig. 4 is a schematic structural view of the drum of the present invention.

In the figure: the four-stage iron chip comprises a front support seat 1, a front upper support frame 2, a front ball 3, a roller 4, a magnet support 5, a support frame 6, a magnet 7, a rear ball 8, a rear upper support frame 9, a rear support seat 10 and a four-stage iron chip 11.

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 the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-4, the present invention provides the following technical solutions: a 360 ° rotating proton therapy gantry comprising:

the rotary drum type rotary drum cleaning machine comprises a front support and a rear support, wherein a rotary drum 4 is rotatably supported between the front support and the rear support;

the front part of the roller 4 is provided with a winding drum;

a magnet bracket 5 is arranged outside the roller 4;

magnets 7 are arranged on two sides of the upper part of the magnet support 5, and four-stage iron chips 11 are arranged between the magnets 7 on two sides and on the lower side of the magnet 7 on one side;

a four-level iron core piece 11 and the magnet 7 on the lower side of the magnet 7 extend into the roller 4, and the four-level iron core piece 11 and the magnet 7 extend into the bobbin;

and the front support and the rear support are provided with driving rotating mechanisms which drive the roller 4 to rotate.

Preferably, the front support comprises a front support base 1, a front upper support frame 2 and a front ball 3, the front support base 1 and the front upper support frame 2 are connected to form a front rotation support part, the front end of the roller 4 is inserted into the front rotation support part, the front ball 3 is embedded into the contact position of the front rotation support part and the roller 4, and the front support base is movably connected with the roller 4.

The front support can move, and when the roller 4 extends and expands along with the change of the temperature, the front support extends along with the extension of the front support and contracts along with the contraction of the front support;

the front support is connected with the base on the ground through the linear guide rail and the sliding block, so that the front support can move, and the aim of dynamically supporting the roller 4 is fulfilled.

Preferably, the rear support includes rear support seat 10, back upper support frame 8 and back ball 8, connect between rear support seat 10, the back upper support frame 9 and constitute the back and rotate the supporting part, the rear end of cylinder 4 inserts on the back rotates the supporting part, the contact department of back ball 8 embedding back rotation supporting part and cylinder 4.

Preferably, a support frame 6 is provided in the drum 4, and the support frame 6 supports and connects the four-stage core plate 11 and the magnet 7 inside the drum 4.

Preferably, the driving rotating mechanism comprises a speed reduction driving motor, a driving gear and a gear ring, the gear ring is sleeved on the outer wall of the roller 4, the gear ring is coaxially installed with the roller 4, the speed reduction driving motor is installed on the front support and the rear support, the output shaft of the speed reduction driving motor is connected with the driving gear, and the driving gear is meshed with the gear ring.

As shown in fig. 3, the basic principle of proton beam transmission is that a beam enters, passes through two 45 ° magnets 7 successively to complete beam translation with a distance of about 2.25M, enters a first 135 ° magnet 7, then enters another 135 ° magnet 7 after being gathered and scanned by a four-stage iron chip 11, and is guided to vertically and downwards hit an isocenter of a patient positioning bed after being deflected by 270 ° in common.

The speed reduction driving motor drives the roller 4 to move on the front support and the rear support to drive the therapeutic head on the front support to rotate, the rotation angle is +/-185 degrees, the rotation frequency is 1 revolution/Min, the driving angular speed is 0.017-0.104 radian/s, the rotation angle precision can stop rotating within +/-0.05 degrees of a preset required selected angle, the rotation angle repeated positioning precision is not more than 0.1 degree, the acceleration and deceleration are all program-controlled, the acceleration can be carried out from zero to full speed within 30 degrees, the deceleration can be carried out from 1 rotation speed to zero rotation speed per minute, and the stop rotating within 3 degrees under the condition of special accidents.

While there have been shown and described the fundamental principles and essential features of the utility model and advantages thereof, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1.360 rotatory proton treatment frame, characterized by, includes:

the rotary drum type rotary drum cleaning machine comprises a front support and a rear support, wherein a rotary drum (4) is rotatably supported between the front support and the rear support;

the front part of the roller (4) is provided with a winding drum;

a magnet bracket (5) is arranged outside the roller (4);

magnets (7) are arranged on two sides of the upper part of the magnet support (5), and four-stage iron chips (11) are arranged between the magnets (7) on two sides and on the lower side of the magnet (7) on one side;

a four-level iron core piece (11) arranged at the lower side of the magnet (7) at one side and the magnet (7) extend into the roller (4), and the four-level iron core piece (11) and the magnet (7) extend into the bobbin;

and the front support and the rear support are provided with driving rotating mechanisms, and the driving rotating mechanisms drive the rollers (4) to rotate.

2. A 360 ° rotating proton treatment gantry of claim 1, wherein: the front support comprises a front support base (1), a front upper support frame (2) and a front ball (3), wherein the front support base (1) and the front upper support frame (2) are connected to form a front rotating support part, the front end of the roller (4) is inserted into the front rotating support part, the front ball (3) is embedded into the contact part of the front rotating support part and the roller (4), and the front support base is movably connected with the roller (4).

3. A 360 ° rotating proton treatment gantry of claim 1, wherein: the rear support comprises a rear support base (10), a rear upper support frame (9) and rear balls (8), the rear support base (10) and the rear upper support frame (9) are connected to form a rear rotating support part, the rear end of the roller (4) is inserted into the rear rotating support part, and the rear balls (8) are embedded into the contact position of the rear rotating support part and the roller (4).

4. A 360 ° rotating proton treatment gantry of claim 1, wherein: a supporting frame (6) is arranged in the roller (4), and the supporting frame (6) supports and connects a four-stage iron chip (11) and a magnet (7) in the roller (4).

5. A 360 ° rotating proton treatment gantry of claim 1, wherein: the driving rotating mechanism comprises a speed reduction driving motor, a driving gear and a gear ring, wherein the gear ring is sleeved on the outer wall of the roller (4), the gear ring is coaxially installed with the roller (4), the speed reduction driving motor is installed on the front support and the rear support, the output shaft of the speed reduction driving motor is connected with the driving gear, and the driving gear is meshed with the gear ring.