阅读说明：本技术 肿瘤放疗装置 (Tumor radiotherapy device ) 是由 李建雄 宋伟 吴璇 冀天楠 鞠忠建 于 2020-11-27 设计创作，主要内容包括：本发明提供了一种肿瘤放疗装置,属于医疗器械技术领域,包括固定架、固定环、调整组件以及固定套,所述固定架用于套设于患者的脖颈外周,所述固定架可在上下方向伸缩调节；所述固定环转动连接于所述固定架的顶部外周,所述固定环与所述固定架之间围合形成滑槽；所述调整组件固设于所述固定环上且与所述滑槽滑动连接,所述调整组件上转动连接有第一转轴和第二转轴,所述第一转轴的轴线和所述第二转轴的轴线垂直设置；所述固定套分别与所述第一转轴和所述第二转轴连接,并用于分别在垂直于所述第一转轴轴向的平面上和垂直于所述第二转轴轴向的平面上转动。本发明肿瘤放疗装置通过架设在患者的脖颈外周,减轻了患者的痛苦,提高了治疗效果。(The invention provides a tumor radiotherapy device, which belongs to the technical field of medical instruments and comprises a fixed frame, a fixed ring, an adjusting assembly and a fixed sleeve, wherein the fixed frame is sleeved on the periphery of the neck of a patient and can be adjusted in a telescopic manner in the vertical direction; the fixing ring is rotationally connected to the periphery of the top of the fixing frame, and a sliding groove is formed by enclosing the fixing ring and the fixing frame; the adjusting assembly is fixedly arranged on the fixing ring and is in sliding connection with the sliding groove, a first rotating shaft and a second rotating shaft are rotatably connected to the adjusting assembly, and the axis of the first rotating shaft is perpendicular to the axis of the second rotating shaft; the fixed sleeve is respectively connected with the first rotating shaft and the second rotating shaft and is used for respectively rotating on a plane vertical to the axial direction of the first rotating shaft and a plane vertical to the axial direction of the second rotating shaft. The tumor radiotherapy device is erected on the periphery of the neck of a patient, so that the pain of the patient is relieved, and the treatment effect is improved.)

1. Tumor radiotherapy apparatus, characterized in that includes:

the fixing frame is sleeved on the periphery of the neck of the patient and can be telescopically adjusted along the axial direction of the fixing frame;

the fixing ring is rotationally connected to the periphery of the top of the fixing frame, and a sliding groove is formed by enclosing the fixing ring and the fixing frame;

the adjusting component is connected to the sliding groove in a sliding manner; and

the fixing sleeve is connected with the adjusting component;

the adjustment assembly includes:

the bottom end of the bracket is connected with the sliding chute in a sliding manner;

the first connecting plate is rotationally connected with the bracket through a first rotating shaft, and the fixed sleeve is connected with the first connecting plate through a third rotating shaft;

the second connecting plate is rotatably connected with the bracket through a second rotating shaft; and

the rotating ball is fixedly arranged at the bottom end of the third rotating shaft, a strip-shaped groove is formed in the rotating ball, a bulge is arranged on the second connecting plate, and the bulge is in rotating fit with the groove and slides along the long axis direction of the groove;

in an initial state, the first rotating shaft is perpendicular to the second rotating shaft, the third rotating shaft is perpendicular to the first rotating shaft, and the axis of the strip-shaped groove, the axis of the first rotating shaft and the axis of the second rotating shaft are located in the same plane.

2. The tumor radiotherapy apparatus of claim 1, wherein the stent comprises:

the length direction of the first frame body is parallel to the axis of the fixing ring, and the first rotating shaft is rotatably connected to the first frame body;

one end of the second frame body is fixedly arranged in the middle of the first frame body and is perpendicular to the first frame body, and the second rotating shaft is rotatably connected to the second frame body;

the first motor is fixedly arranged on the first frame body, and an output shaft of the first motor is fixedly connected with the first rotating shaft; and

and the second motor is fixedly arranged on the second frame body, and an output shaft of the second motor is fixedly connected with the second rotating shaft.

3. The tumor radiotherapy device of claim 2, wherein a cylindrical block is disposed at the bottom of the first frame body, and a peripheral side surface of the cylindrical block is attached to an inner surface of the chute;

a first cavity is formed in the cylindrical block, and balls are arranged in the first cavity in a protruding mode.

4. The tumor radiotherapy apparatus of claim 1, wherein the end of said harness facing the axis of said stationary ring is provided with a tapered enlarged plate, the small end of said enlarged plate being connected to said harness.

5. The tumor radiotherapy apparatus of claim 4, wherein said expansion plate comprises a plurality of curved plates, one end of said curved plates is rotatably connected to said sheath, the edges of adjacent curved plates are overlapped in a staggered manner, and the rotation axis of said curved plates is perpendicular to the central axis of said sheath.

6. The tumor radiotherapy apparatus of claim 1, wherein the holder comprises:

the periphery of the top bearing ring is provided with a fixing piece which is clamped with the periphery of the fixing ring;

the top of the telescopic assembly is connected with the top bearing ring; and

the bottom bearing ring is used for being placed on the shoulders of a patient and is connected with the bottom of the telescopic assembly.

7. The tumor radiotherapy apparatus of claim 6, wherein the telescoping assembly comprises:

the outer surface of the air bag ring is respectively connected with the top bearing ring and the bottom bearing ring, and the inner cavity of the air bag ring is communicated with an air source; and

and one end of the telescopic rod is fixed with the bottom bearing ring, and the other end of the telescopic rod is fixed with the top bearing ring.

8. The tumor radiotherapy device of claim 7, wherein a plurality of air cavities are formed in the air bag ring along the axial direction of the top supporting ring;

the air cavities are communicated with each other; or the air cavities are arranged in a separated mode, and each air cavity is communicated with the air source.

9. The device for radiotherapy of tumor according to claim 6, wherein the fixing member is a bent elastic sheet, one end of the elastic sheet is fixedly connected to the top supporting ring, and the periphery of the fixing ring is uniformly provided with a plurality of positioning holes for being clamped with the free end of the elastic sheet.

10. The tumor radiotherapy apparatus of claim 6, further comprising:

the supporting plate is used for supporting the bottom of the chin of a patient;

the top of the first supporting rod is fixedly connected with the supporting plate; and

the second supporting rod is parallel to the first supporting rod and is in axial sliding connection with the fixing ring, and the bottom of the second supporting rod is fixedly arranged on the bottom bearing ring.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a tumor radiotherapy device.

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.

When having for neck tumour patient to do radiotherapy now, need the patient to lie in bed and keep a posture (lie or lie prone) for a long time usually, need the patient to stand up when radiotherapying respectively to the front and the back of neck and operate such as, increased patient's misery, and be unfavorable for adjusting the radiation position at any time at the treatment in-process.

Disclosure of Invention

The invention aims to provide a tumor radiotherapy device, and aims to solve the technical problems that a patient needs to keep one posture for a long time and the radiation position is not easy to adjust in the conventional radiotherapy device.

In order to achieve the purpose, the invention adopts the technical scheme that: there is provided an apparatus for radiotherapy of tumors comprising:

the fixing frame is sleeved on the periphery of the neck of the patient and can be telescopically adjusted along the axial direction of the fixing frame;

the fixing ring is rotationally connected to the periphery of the top of the fixing frame, and a sliding groove is formed by enclosing the fixing ring and the fixing frame;

the adjusting component is connected to the sliding groove in a sliding manner; and

the fixing sleeve is connected with the adjusting component;

the adjustment assembly includes:

the bottom end of the bracket is connected with the sliding chute in a sliding manner;

the first connecting plate is rotationally connected with the bracket through a first rotating shaft, and the fixed sleeve is connected with the first connecting plate through a third rotating shaft;

the second connecting plate is rotatably connected with the bracket through a second rotating shaft; and

the rotating ball is fixedly arranged at the bottom end of the third rotating shaft, a strip-shaped groove is formed in the rotating ball, a bulge is arranged on the second connecting plate, and the bulge is in rotating fit with the groove and slides along the long axis direction of the groove;

in an initial state, the first rotating shaft is perpendicular to the second rotating shaft, the third rotating shaft is perpendicular to the first rotating shaft, and the axis of the strip-shaped groove, the axis of the first rotating shaft and the axis of the second rotating shaft are located in the same plane.

As another embodiment of the present application, the stent includes:

the length direction of the first frame body is parallel to the axis of the fixing ring, and the first rotating shaft is rotatably connected to the first frame body;

one end of the second frame body is fixedly arranged in the middle of the first frame body and is perpendicular to the first frame body, and the second rotating shaft is rotatably connected to the second frame body;

the first motor is fixedly arranged on the first frame body, and an output shaft of the first motor is fixedly connected with the first rotating shaft; and

and the second motor is fixedly arranged on the second frame body, and an output shaft of the second motor is fixedly connected with the second rotating shaft.

As another embodiment of the application, a cylindrical block is arranged at the bottom of the first frame body, and the peripheral side surface of the cylindrical block is attached to the inner surface of the sliding groove;

a first cavity is formed in the cylindrical block, and balls are arranged in the first cavity in a protruding mode.

As another embodiment of the application, one end of the fixing sleeve, which faces the axis of the fixing ring, is provided with a conical expansion plate, and the small end of the expansion plate is connected to the fixing sleeve.

As another embodiment of this application, expand the board and include a plurality of arcs, the one end of arc with fixed cover rotates to be connected, and is adjacent the crisscross overlap joint in edge of arc, the axis of rotation perpendicular to of arc the axis of fixed cover.

As another embodiment of the present application, the fixing frame includes:

the periphery of the top bearing ring is provided with a fixing piece which is clamped with the periphery of the fixing ring;

the top of the telescopic assembly is connected with the top bearing ring; and

the bottom bearing ring is used for being placed on the shoulders of a patient and is connected with the bottom of the telescopic assembly.

As another embodiment of the present application, the telescopic assembly includes:

the outer surface of the air bag ring is respectively connected with the top bearing ring and the bottom bearing ring, and the inner cavity of the air bag ring is communicated with an air source; and

and one end of the telescopic rod is fixed with the bottom bearing ring, and the other end of the telescopic rod is fixed with the top bearing ring.

As another embodiment of the present application, a plurality of air chambers are provided in the air bag ring along the axial direction of the top support ring;

the air cavities are communicated with each other; or the air cavities are arranged in a separated mode, and each air cavity is communicated with the air source.

As another embodiment of this application, the mounting is the shell fragment of bending, the one end rigid coupling of shell fragment in top bearing ring, solid fixed ring periphery evenly be equipped with a plurality of be used for with the locating hole of shell fragment free end joint.

As another embodiment of the present application, the tumor radiotherapy apparatus further comprises:

the supporting plate is used for supporting the bottom of the chin of a patient;

the top of the first supporting rod is fixedly connected with the supporting plate; and

the second supporting rod is parallel to the first supporting rod and is in axial sliding connection with the fixing ring, and the bottom of the second supporting rod is fixedly arranged on the bottom bearing ring.

The tumor radiotherapy device provided by the invention has the beneficial effects that: compared with the prior art, when the tumor radiotherapy device is used, the whole device is sleeved on the periphery of the neck of a patient, the bottom of the fixing frame is erected on the shoulder of the patient, the height of the fixing frame is adjusted through the length of the neck of the patient, then the fixing ring is rotated to drive the adjusting assembly to slide in the sliding groove, the position of the adjusting assembly on the periphery of the neck is determined, finally, the first rotating shaft and the second rotating shaft are sequentially rotated, the first connecting plate drives the third rotating shaft to change the position on a plane vertical to the first rotating shaft when the first rotating shaft rotates, the second rotating shaft rotates after the first rotating shaft rotates, the protrusion on the second rotating shaft pushes the groove, the rotating ball changes the position on the plane vertical to the second rotating shaft, and after the position of the fixing sleeve is adjusted, an external radioactive source is placed in the fixing sleeve to start radiotherapy. The tumor radiotherapy device is erected on the periphery of the neck of a patient, when the front and the back of the neck are required to be irradiated at different angles, the patient does not need to move the position, and the direction and the position of an external radioactive source fixed on the fixing sleeve can be changed only by rotating the fixing ring or rotating the first rotating shaft and the second rotating shaft, so that the pain of the patient is relieved; through the height of adjusting the mount and rotating first pivot, second pivot can realize that external radiation source carries out radiotherapy in following condition: (1) the height, the position and the angle are the same; (2) different heights, same positions and different angles; (3) different heights, different positions and different angles. The external radioactive source is fixed through the fixing sleeve to carry out radiotherapy under various conditions, so that the position and the direction of the radiation can be conveniently adjusted at any time, the range of the radiotherapy is enlarged, the accurate position of the radioactive source aiming at the tumor can be ensured, and the treatment effect is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions 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 creative efforts.

Fig. 1 is a schematic cross-sectional structural diagram of a tumor radiotherapy apparatus according to an embodiment of the present invention;

fig. 2 is a schematic top view of a tumor radiotherapy apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of an adjusting assembly and a fixing sheath used in an embodiment of the present invention;

fig. 4 is a schematic perspective view of a fixing sleeve according to a second embodiment of the present invention;

fig. 5 is a schematic partial sectional view of a tumor radiotherapy apparatus according to an embodiment of the present invention.

In the figure: 1. a fixed mount; 101. a top bearing ring; 102. a telescoping assembly; 112. an air bag ring; 122. a telescopic rod; 103. a bottom bearing ring; 2. a fixing ring; 3. an adjustment assembly; 301. a support; 311. a first frame body; 321. a second frame body; 331. a first motor; 341. a second motor; 302. a first connecting plate; 303. a second connecting plate; 304. rotating the ball; 4. fixing a sleeve; 5. a chute; 6. a first rotating shaft; 7. a second rotating shaft; 8. a third rotating shaft; 9. a groove; 10. a protrusion; 11. a first disc; 12. a second disc; 13. a cylindrical block; 14. a first cavity; 15. a ball bearing; 16. an accommodating chamber; 17. a bump; 18. an elastic member; 19. a fixing hole; 20. expanding a plate; 21. an arc-shaped plate; 22. an air cavity; 23. a boss; 24. a fixing member; 25. positioning holes; 26. a support plate; 27. a first support bar; 28. a second support bar; 29. an arc-shaped groove.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 5, a tumor radiotherapy device according to the present invention will be described. The tumor radiotherapy device comprises a fixing frame 1, a fixing ring 2, an adjusting component 3 and a fixing sleeve 4, wherein the fixing frame 1 is used for being sleeved on the periphery of the neck of a patient, and the fixing frame 1 can be telescopically adjusted along the axial direction of the fixing frame; the fixed ring 2 is rotationally connected to the periphery of the top of the fixed frame 1, and a sliding groove 5 is formed between the fixed ring 2 and the fixed frame 1 in a surrounding manner; the adjusting component 3 is connected with the chute 5 in a sliding way; the fixed sleeve 4 is connected with the adjusting component 3; the adjusting assembly 3 comprises a bracket 301, a first connecting plate 302, a second connecting plate 303 and a rotating ball 304, wherein the bottom end of the bracket 301 is slidably connected to the sliding groove 5; the first connecting plate 302 is rotationally connected with the bracket 301 through a first rotating shaft 6, and the fixed sleeve 4 is connected with the first connecting plate 302 through a third rotating shaft 8; the second connecting plate 303 is rotatably connected with the bracket 301 through a second rotating shaft 7; the rotating ball 304 is fixedly arranged at the bottom end of the third rotating shaft 8, a strip-shaped groove 9 is formed in the rotating ball 304, a protrusion 10 is arranged on the second connecting plate 303, and the protrusion 10 is in rotating fit with the groove 9 and slides along the long axis direction of the groove 9; in the initial state, the first rotating shaft 6 is perpendicular to the second rotating shaft 7, the third rotating shaft 8 is perpendicular to the first rotating shaft 6, and the axis of the strip-shaped groove 9, the axis of the first rotating shaft 6 and the axis of the second rotating shaft 7 are located in the same plane.

Compared with the prior art, the tumor radiotherapy device provided by the invention has the advantages that when the device is used, the whole device is sleeved on the periphery of the neck of a patient, the bottom of the fixing frame 1 is erected on the shoulder of the patient, the height of the fixing frame 1 is adjusted according to the length of the neck of the patient, then the fixing ring 2 is rotated to drive the adjusting component 3 to slide in the sliding groove 5, the position of the adjusting component 3 on the periphery of the neck is determined, finally, the first rotating shaft 6 and the second rotating shaft 7 are sequentially rotated, the first connecting plate 302 drives the third rotating shaft 8 to change the position on a plane vertical to the first rotating shaft 6 when the first rotating shaft 6 rotates, the second rotating shaft 7 is rotated after the first rotating shaft 6 rotates, the protrusion 10 on the second rotating shaft 7 pushes the groove 9, so that the rotating ball 304 changes the position on the plane vertical to the second rotating shaft 7, and after the position of the fixing frame 4 is, the external radiation source is placed in the fixation sleeve 4 and the radiotherapy is started. The tumor radiotherapy device is erected on the periphery of the neck of a patient, when the front and the back of the neck are required to be irradiated at different angles, the patient does not need to move the position, and the direction and the position of an external radioactive source fixed on a fixed sleeve 4 can be changed by only rotating a fixed ring 2 or rotating a first rotating shaft 6 and a second rotating shaft 7, so that the pain of the patient is relieved; the radiation therapy of the external radiation source under the following conditions can be realized by adjusting the height of the fixing frame 1 and rotating the first rotating shaft 6 and the second rotating shaft 7: (1) the height, the position and the angle are the same; (2) different heights, same positions and different angles; (3) different heights, different positions and different angles. The external radioactive source is fixed by the fixing sleeve 4 to carry out radiotherapy under various conditions, so that the position and the direction of the radiation can be conveniently adjusted at any time, the range of the radiotherapy is enlarged, the accurate position of the radioactive source aiming at the tumor can be ensured, and the treatment effect is improved.

Referring to fig. 3, a projection 10 is a cylinder, which is an embodiment of the tumor radiotherapy apparatus of the present invention. When the axis of the first rotating shaft 6 for adjusting the fixed sleeve 4 is the axis vertical to the fixed ring 2, the rotating ball 304 is adjusted through the second rotating shaft 7, and the axis of the protrusion 10 is always parallel to the axis of the first rotating shaft 6; when the first rotating shaft 6 adjusts the irradiation light of the fixing sleeve 4 to be not perpendicular to the axis of the fixing ring 2, the second rotating shaft 7 rotates while the protrusion 10 pushes the side wall of the groove 9 to drive the rotating ball 304 to rotate, in the process, the axis of the protrusion 10 cannot be always parallel to the axial direction of the first axis, through the elongated groove 9, the protrusion 10 can slide in the length direction of the groove 9 in the rotating process of the second rotating shaft 7, and the second rotating shaft 7 drives the fixing sleeve 4 to rotate in the state.

The contact between the outer peripheral surface of the protrusion 10 and the two side surfaces of the groove 9 is beneficial to the stability of the second connecting plate 303 when driving the rotating ball 304 to rotate, and is also beneficial to the stability of the fixing sleeve 4 during operation.

Specifically, first connecting plate 302 and second connecting plate 303 are the L template, and the connecting plate of two L types encloses into and supplies to connect ball pivoted space, guarantees to rotate the head and can not hinder fixed cover 4's rotation process production when can rotate smoothly under the drive of first pivot 6 and second pivot 7

As an embodiment of the tumor radiotherapy apparatus provided in the present invention, please refer to fig. 1 and fig. 3, the support 301 includes a first support 311, a second support 321, a first motor 331 and a second motor 341, the length direction of the first support 311 is parallel to the axis of the fixing ring 2, and the first rotating shaft 6 is rotatably connected to the first support 311; one end of the second frame 321 is fixedly arranged in the middle of the first frame 311 and is perpendicular to the first frame 311, and the second rotating shaft 7 is rotatably connected to the second frame 321; the first motor 331 is fixedly arranged on the first frame 311, and an output shaft of the first motor 331 is fixedly connected with the first rotating shaft 6; the second motor 341 is fixedly disposed on the second frame 321, and an output shaft of the second motor 341 is fixedly connected to the second rotating shaft 7. The first frame body 311 and the second frame body 321 are simple in structure, the first rotating shaft 6 and the second rotating shaft 7 can be conveniently fixed, the body of the first motor 331 is fixedly connected with the first frame body 311, the output shaft of the first motor 331 is fixedly connected with the first rotating shaft 6, and the rotation or stop of the first rotating shaft 6 can be adjusted by controlling the opening and closing of the first motor 331; the body of the second motor 341 is fixedly connected to the second frame 321, the output shaft is fixedly connected to the second rotating shaft 7, and the rotation or stop of the second rotating shaft 7 can be adjusted by controlling the opening and closing of the second motor 341; the angle of the fixed sleeve 4 can be adjusted conveniently through the two motors, and the labor intensity of operators is reduced.

The first motor 331 and the second motor 341 are respectively in communication connection with a control module, the control module is used for controlling the on and off of the first motor 331 and the second motor 341, and the control module can be in wired connection with the first motor 331 and the second motor 341 to control the on and off of the motors conveniently; the control module can be wirelessly connected with the first motor 331 and the second motor 341, so that the first motor 331 and the second motor 341 can be remotely controlled conveniently.

In this embodiment, the first frame 311 is provided with a first disk 11, and the first motor 331 is fixed on the first disk 11 through a threaded connection; the second frame 321 is provided with a second disc 12, and the second motor 341 is fixed on the second disc 12 through a threaded connection. The first motor 331 is convenient to install through the first disk 11, the second motor 341 is convenient to install through the second disk 12, and the stable rotation of the first motor 331 and the second motor 341 can ensure the stable radiotherapy of the external radioactive source fixed at the fixing sleeve 4.

As a specific embodiment of the tumor radiotherapy device provided by the present invention, please refer to fig. 1, fig. 3 and fig. 5, the bottom of the first frame 311 is provided with a cylindrical block 13, and the peripheral side surface of the cylindrical block 13 is attached to the inner surface of the chute 5; a first cavity 14 is arranged in the cylindrical block 13, and a ball 15 is arranged in the first cavity 14 in a downward protruding mode. The chute 5 is annular, the axis of the chute 5 coincides with the axis of the fixing ring 2, the fixing ring 2 rotates relative to the fixing frame 1 to drive the cylindrical block 13 to slide in the chute 5 to adjust the position of the fixing sleeve 4, and in the sliding process, the peripheral side surface of the cylindrical block 13 is always attached to the inner wall of the chute 5, so that the stability of the fixing sleeve 4 in a sliding or static state is improved, and the stability of an external radioactive source is ensured; the bottom of cylinder piece 13 is equipped with ball 15, is favorable to reducing the cylinder piece 13 at the frictional force of slip in-process and spout 5 bottom, improves the smoothness nature of cylinder piece 13 slip in-process.

As a specific embodiment of the tumor radiotherapy apparatus provided in the present invention, please refer to fig. 5, an inner wall accommodating cavity 16 of the fixing ring 2, a protrusion 17 slidably connected in the accommodating cavity 16, and an elastic member 18 disposed between the protrusion 17 and the inner wall of the accommodating cavity 16; the cylindrical block 13 is provided with a fixing hole 19 for clamping with the convex block 17. Preferably, the elastic member 18 is a spring, when the adjusting assembly 3 is installed, the convex block 17 is firstly extruded, the convex block 17 extrudes the spring and is positioned in the accommodating cavity 16, then the fixing block is abutted against the top inside the sliding chute 5 and is positioned at the top of the convex block 17 to slide downwards, after the cylindrical block 13 is placed in the sliding chute 5, if the fixing hole 19 at the moment is just aligned with the protrusion 10, the spring rebounds to push the protrusion 10 to clamp the protrusion 10 in the fixing hole 19, so that the fixing ring 2 is connected with the adjusting assembly 3; if the fixing hole 19 is not aligned with the outlet of the accommodating cavity 16 at this time, the cylindrical block 13 can be rotated around the axis of the cylindrical block 13 until the fixing hole 19 is aligned with the protrusion 10, and the spring rebounds to push the protrusion 10 to be clamped in the fixing hole 19 to complete the connection of the fixing ring 2 and the adjusting assembly 3. Through the structure, the connection of the fixing ring 2 and the adjusting component 3 is realized, the installation is convenient, and the connection is stable.

Referring to fig. 3, as an embodiment of the tumor radiotherapy apparatus provided by the present invention, a tapered expanding plate 20 is disposed at an end of the fixing sleeve 4 facing the axis of the fixing ring 2, and a small end of the expanding plate 20 is connected to the fixing sleeve 4. After the external radioactive source is fixed in the fixing sleeve 4, rays of the radioactive source enter from one end of the fixing sleeve 4 and reach one end of the conical expansion plate 20 through the guidance of the fixing sleeve 4, and the conical expansion plate 20 can expand the range of ray emission, enlarge the treatment range and improve the treatment efficiency.

Referring to fig. 4, as a specific embodiment of the tumor radiotherapy apparatus provided by the present invention, the expansion plate 20 includes a plurality of arc plates 21, one end of each arc plate 21 is rotatably connected to the fixing sleeve 4, edges of adjacent arc plates 21 are overlapped in a staggered manner, and a rotation axis of each arc plate 21 is perpendicular to a central axis of the fixing sleeve 4. The diameter of the outlet of the enclosed expansion plate 20 can be changed by rotating the arc plate 21, and the diameter of the outlet of the expansion plate 20 can be larger than the diameter of the fixed sleeve 4 or smaller than the diameter of the fixed sleeve 4, so that the diameter area of the radioactive source ejected from the fixed sleeve 4 can be changed conveniently, the range of the ejected rays can be adjusted conveniently according to the size of the tumor, and the applicability is strong; the edge overlap prevents radiation leakage.

Preferably, the material of fixed cover 4 and arc 21 is titanium alloy, all is titanium alloy material through fixed cover 4 and arc 21, can effectively with the ray separation at fixed cover 4 within ranges, reduces the radiation of ray, reduces the injury to the patient.

In this embodiment, the adjacent arc-shaped plates 21 are distributed in a staggered manner, that is, the middle arc-shaped plate 21 is located at the inner sides of the two arc-shaped plates 21 at the two sides among the three adjacent arc-shaped plates 21; or, the middle arc plate 21 of the three adjacent arc plates 21 is positioned at the outer side of the two arc plates 21 at the two sides. It is ensured that the arc-shaped plates 21 do not interfere with each other during the rotational adjustment.

As a specific embodiment of the tumor radiotherapy apparatus provided in the present invention, please refer to fig. 1, the fixing frame 1 includes a top supporting ring 101, a telescopic assembly 102 and a bottom supporting ring 103, a fixing member 24 for engaging with the periphery of the fixing ring 2 is disposed at the periphery of the top supporting ring 101; the top of the telescopic assembly 102 is connected with the top bearing ring 101; a bottom retainer ring 103 is adapted to be placed over the shoulders of the patient, and the bottom retainer ring 103 is connected to the bottom of the telescoping assembly 102. When the adjustable fixed sleeve is used, the fixed frame 1 penetrates through the head of a patient, the bottom bearing ring 103 is placed on the shoulder of the patient, the top bearing ring 101 is adjusted to a proper height through the adjustable telescopic component 102, the fixed ring 2 is rotated, the adjusting component 3 is driven to reach a proper position, the purpose of fixing the position of the fixed sleeve 4 is achieved on the periphery of the fixed ring 2 through the fixing piece 24 in a clamping mode, the orientation angle of the outlet of the fixed sleeve 4 is adjusted through rotating the first rotating shaft 6 and/or the second rotating shaft 7, and it is guaranteed that a light beam irradiated by the fixed sleeve 4 is in a preset angle state and is aligned to the position of a tumor, and the. Conveniently adjust the height of fixed cover 4 through flexible subassembly 102, satisfy different patients' neck length, also be applicable to the not high not regulation of angle of difference of fixed cover 4, the angle scope of the fixed cover 4 export orientation of increase, and then the radiation angle scope of increase radiation source, optimize treatment.

In this embodiment, the bottom of the bottom support ring 103 is provided with an arc-shaped groove 29 with a downward opening, and a cushion pad (sponge pad, etc.) is arranged in the arc-shaped groove 29. The blotter can just the joint in the position of patient's shoulder, helps this tumour radiotherapy device's stability, and the blotter can alleviate and lead to the aching and pain sense of patient's shoulder department owing to place tumour radiotherapy device for a long time simultaneously.

As a specific embodiment of the tumor radiotherapy device provided by the present invention, please refer to fig. 1, the telescopic assembly 102 includes an air bag ring 112 and a telescopic rod 122, an outer surface of the air bag ring 112 is respectively connected with the top supporting ring 101 and the bottom supporting ring 103, and an inner cavity of the air bag ring 112 is communicated with an air source; one end of the telescopic rod 122 is fixed with the bottom bearing ring 103, and the other end is fixed with the top bearing ring 101. Preferably, the material of the airbag ring 112 is flexible plastic, and at least two telescopic rods 122 are provided. In an initial state, no gas exists in the airbag ring 112, after the fixing frame 1 is sleeved on the periphery of the neck of a patient, the inside of the airbag ring 112 is inflated through a gas source, the telescopic rod 122 extends synchronously until the height is adjusted to be a proper height, and at the moment, the telescopic rod 122 is adjusted in a telescopic mode to ensure the stability of the top supporting ring 101; the height of the top bearing ring 101 is adjusted through the air bag ring 112, so that the adjustment is convenient, the weight of the whole device can be reduced, and the applicable comfort level is increased.

In this embodiment, cold air or hot air can be filled into the airbag ring 112 according to the environmental requirements, for example, in a cold weather, the device itself is relatively cool, and warmer air can be filled into the airbag ring 112; in hot weather conditions, cooler air may be introduced into the bladder 112 to reduce dryness heat. The patient can be ensured to be in a more comfortable state in the treatment process by adjusting the temperature of the introduced gas.

Specifically, the inner ring of the airbag ring 112 can play a primary supporting effect on the periphery of the neck in a state of more inflation, so that the patient is prevented from moving around in the treatment process.

As a specific embodiment of the tumor radiotherapy device provided by the present invention, please refer to fig. 1, a plurality of air cavities 22 are arranged in the air bag ring 112 along the axial direction of the top support ring 101, and the plurality of air cavities 22 are communicated with each other; or, a plurality of air cavities 22 are arranged separately, and each air cavity 22 is respectively communicated with an air source. When a plurality of air cavities 22 are communicated, the whole air cavity 22 only needs to be ventilated through an air source, and the height of the top bearing ring 101 can be changed by introducing more or less air in the air cavities 22; when the air chambers 22 are arranged in a mutually separated manner, each air chamber 22 is independently communicated with the air source, each air chamber 22 corresponds to one regulating valve for switching on and off the inflation inlet, the effect of regulating the height of the top bearing ring 101 can be achieved by independently inflating one or two air chambers 22, at the moment, each air chamber 22 is in a full state when inflated, the more the number of the filled air chambers 22 is, the higher the height of the corresponding top bearing ring 101 is, and the air chambers 22 are always in the full state, so that the stability of the whole structure is ensured; it is also possible to fill two air chambers 22 arranged at intervals, for example: only one air cavity 22 at the top and one air cavity 22 at the bottom are inflated and in a full state, so that the height of the top bearing ring 101 is ensured, and the top bearing ring 101 and the bottom bearing ring 103 are prevented from being hard to cause discomfort of a patient, the structure is simple to operate, and the labor intensity of medical staff is reduced.

Referring to fig. 1 and 5, as an embodiment of the tumor radiotherapy apparatus provided by the present invention, a boss 23 for supporting the fixing ring 2 is disposed on the periphery of the top supporting ring 101. Through the boss 23 bearing in solid fixed ring 2's bottom, play the supporting effect to solid fixed ring 2, boss 23 is fixed when solid fixed ring 2 rotates, prevents solid fixed ring 2 and drops, realizes solid fixed ring 2's rotation.

In this embodiment, the fixing ring 2 is composed of a horizontal annular plate and a vertical annular plate, the outer peripheral surface of the top bearing ring 101 is flush with the inner surface of the horizontal annular plate, the boss 23 is supported at the bottom of the horizontal annular plate, and the vertical annular plate and the top bearing ring 101 are enclosed to form the sliding groove 5, so that the cylindrical block 13 can slide in the sliding groove 5 conveniently, the structure is simple, and the manufacturing cost is reduced.

Referring to fig. 1 and 5, the fixing member 24 is a bent elastic sheet, one end of the elastic sheet is fixedly connected to the top support ring 101, and the periphery of the fixing ring 2 is uniformly provided with a plurality of positioning holes 25 for being clamped with the elastic sheet. When needs rotate solid fixed ring 2, take the shell fragment out from locating hole 25, rotate solid fixed ring 2 to suitable position after, with the shell fragment joint to corresponding locating hole 25 in, realize the fixed to solid fixed ring 2 position, the elasticity of flexure strip is conveniently taken out with the joint, easy operation prevents solid fixed ring 2 and rocks in the use.

Specifically, the top support ring 101 may have a plurality of elastic pieces at its outer circumference to enhance the fixing effect of the fixing ring 2.

Referring to fig. 1, the tumor radiotherapy apparatus further includes a supporting plate 26, a first supporting rod 27 and a second supporting rod 28, wherein the supporting plate 26 is used for supporting the bottom of the chin of the patient; the top of the first supporting rod 27 is fixedly connected with the supporting plate 26; the second supporting rod 28 is connected with the first supporting rod 27 in a sliding manner along an axial direction parallel to the fixing ring 2, and the bottom of the second supporting rod 28 is fixedly arranged on the bottom supporting ring 103. Preferably, the supporting plate 26 is rotatably connected to the first supporting rod 27, and the supporting plate 26 can be adjusted to be perpendicular to the first supporting rod 27 and parallel to the first supporting rod 27 by rotation, so that when the supporting plate 26 is parallel to the first supporting rod 27, the sliding of the adjusting assembly 3 in the sliding groove 5 is not affected; after the fixing frame 1 is sleeved on the neck of a patient, the height of the supporting plate 26 can be adjusted through the telescopic adjustment of the first supporting rod 27 and the second supporting rod 28, so that the supporting plate 26 is supported at the chin of the patient, the neck of the patient can be ensured to be in a relatively fixed state through the up-and-down support of the supporting plate 26 and the bottom supporting ring 103, and the radiation position of a radiation source is prevented from generating deviation due to the activity of the neck of the patient in the treatment process.

In this embodiment, a second cavity is formed in the second strut 28, the first strut 27 is inserted into the second cavity and can be slidably connected, a bolt is further axially connected to the second strut 28 perpendicular to the second strut 28 at an opening of the second cavity, and one end of the bolt abuts against the outer surface of the first strut 27; when the extension height of the first supporting rod 27 needs to be adjusted, the bolt is loosened, the extension height of the first supporting rod 27 is adjusted, so that the height of the supporting plate 26 is changed, the bolt is tightened to press the first supporting rod 27 in the first cavity 14, the first supporting rod 27 is fixed, the structure is simple, and adjustment is convenient.

The top of the supporting plate 26 is provided with a rubber pad, so that the comfort level of the chin during long-time holding is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.