Positioning device for stereotactic radiotherapy

Abstract

The utility model discloses a positioning device for stereotactic radiotherapy, which comprises a carbon fiber bottom plate and two strip hole clamping frames fixedly arranged on the carbon fiber bottom plate, a foot pad piece is fixedly arranged on one side of the top end of the carbon fiber bottom plate, and a knee supporting pad is fixedly arranged on one side of the joint of the carbon fiber bottom plate and the foot pad piece. The side surface of the carbon fiber bottom plate is fixedly provided with two arch-shaped bridge frame mechanisms through bolts, the bottom plate structure of the positioning device for stereotactic radiotherapy is widened to 630mm, and 14 vacancies are arranged on the bottom plate and are used for installing bridge frames matched with a six-dimensional bed, so that the positioning device for stereotactic radiotherapy is simple in structure and convenient to use. The six-dimensional bed is simple in structure and convenient to use, the function of the six-dimensional bed is not affected while a patient lies flat and is positioned conveniently, the plate-shaped structural design is convenient to disassemble and maintain, positioning of the knees, the abdomen and the head of the patient can be flexibly adjusted, and the body position of the patient is easy, convenient, stable and reliable to fix.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary radiotherapy equipment, in particular to a positioning device for stereotactic radiotherapy. Background Art

[0002] High-end medical linear accelerators are equipped with a six-dimensional bed that can be adjusted in six degrees of freedom to provide patients with more accurate radiotherapy. When using a six-dimensional bed, an arch bridge needs to be placed on the six-dimensional bed, and the six-dimensional bed probe uses the metal markers on the bridge to determine the actual position of the patient on the six-dimensional bed. In daily clinical radiotherapy, staff need to place the stereotactic radiotherapy positioning frame on the six-dimensional bed, and the patient then lies on the stereotactic radiotherapy positioning frame to fix the body position.

[0003] Since the width of the base plate of the current stereotactic radiotherapy positioning frame is 530mm, which is the same as the width of the six-dimensional bed board, after placing the base plate on the six-dimensional bed, the bridge frame that comes separately with the six-dimensional bed cannot be placed, so some functions of the six-dimensional bed cannot be used. Utility Model Content

[0004] The utility model aims to provide a positioning device for stereotactic radiotherapy to solve the problem that the bridge of the six-dimensional bed cannot be properly installed during the use of the existing positioning frame proposed in the above background technology, thus affecting some functions of the six-dimensional bed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for stereotactic radiotherapy, comprising a carbon fiber base plate and two strip hole brackets fixedly arranged on the carbon fiber base plate, a foot pad is fixedly arranged on one side of the top of the carbon fiber base plate, a knee support pad is fixedly arranged on one side of the connection between the carbon fiber base plate and the foot pad, two arched bridge mechanisms are fixedly arranged on the side of the carbon fiber base plate by bolts, one of the arched bridge mechanisms is provided with a knee clamping assembly for fixing the patient's knees, and the other arched bridge mechanism is provided with an abdomen clamping assembly for fixing the patient's abdomen, an wing-shaped head pad assembly is fixedly arranged on the other side of the top of the carbon fiber base plate, seven reserved sockets are opened on both sides of the edge of the carbon fiber base plate, and the width of the carbon fiber base plate is set to 630mm.

[0006] Preferably, the bow-shaped bridge mechanism includes two support frames and a bow-shaped frame slidably arranged between the two support frames, and locking components for clamping the bow-shaped frames are fixedly installed on the outer sides of the two support frames, a transverse sliding groove is provided at the top of the bow-shaped frame, a sliding block is slidably arranged on the transverse sliding groove, a locking seat is fixedly provided on one side of the sliding block, a locking buckle is hinged on one side of the locking seat, a locking bolt is threadedly connected to the locking buckle, and a plurality of limit clamping holes are provided at the bottom of both sides of the bow-shaped frame.

[0007] Preferably, the locking assembly includes a limit card seat and a wedge-shaped block slidably arranged on the inner side of the limit card seat, a pull rod is fixedly arranged at one end of the wedge-shaped block, a spring is sleeved on the middle part of the pull rod, one end of the pull rod extends out of the limit card seat, and the wedge-shaped block matches the limit card hole.

[0008] Preferably, the knee compression assembly comprises a knee compression rod and a knee compression pad fixedly arranged at the bottom end of the knee compression rod, and the knee compression pad is arranged opposite to the knee support pad.

[0009] Preferably, the abdominal compression assembly includes an abdominal compression rod and an abdominal compression plate fixedly arranged at the bottom end of the abdominal compression rod, and the abdominal compression plate is arranged in a rounded triangle shape; the abdominal compression plate can be adjusted up and down and left and right to better contact the human body position.

[0010] Preferably, the wing-shaped head pad assembly includes an inclined column and a column slide slidably arranged on the inclined column, a wing-shaped base plate is fixedly arranged on the front side of the column slide, a headrest is fixedly installed on the top of the wing-shaped base plate, a pin is threadedly connected to one side of the column slide, and the pin is threadedly connected to the inclined column; the height and position of the headrest can be flexibly adjusted.

[0011] Preferably, two carrying handle holes are provided at both ends of the carbon fiber bottom plate, so as to facilitate the normal carrying and use of the carbon fiber bottom plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The stereotactic radiotherapy positioning device has expanded the base structure to 630mm and opened 14 spaces on the base for the installation of the bridge frame supporting the six-dimensional bed. It facilitates the patient's lying positioning without affecting the function of the six-dimensional bed. The plate-like structure design is not only easy to disassemble and maintain, but also can flexibly adjust the positioning of the patient's knees, abdomen and head. The patient's position is fixed, easy to operate, stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the positioning device of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the bow-shaped bridge mechanism of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the wing-shaped head pad assembly of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0018] Figure 5It is an enlarged view of part A of the utility model.

[0019] In the figure: 1. Carbon fiber bottom plate; 2. Foot pad; 3. Arched bridge mechanism; 31. Support frame; 32. Arched frame; 33. Limiting seat; 34. Limiting hole; 35. Horizontal slide; 36. Slide block; 37. Locking seat; 38. Locking buckle; 39. Locking bolt; 310. Pull rod; 311. Spring; 312. Wedge block; 4. Knee support pad; 5. Strip hole bracket; 6. Wing-shaped head pad assembly; 61. Oblique column; 62. Column slide; 63. Wing-shaped bottom plate; 64. Headrest; 65. Pin; 7. Carrying grip hole; 8. Reserved socket; 9. Abdominal pressure plate; 10. Knee pressure rod; 11. Knee pressure pad; 12. Abdominal pressure rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-5 The utility model provides a positioning device for stereotactic radiotherapy, comprising a carbon fiber base plate 1 and two strip hole brackets 5 fixedly arranged on the carbon fiber base plate 1, a foot pad 2 is fixedly arranged on one side of the top of the carbon fiber base plate 1, a knee support pad 4 is fixedly arranged on one side of the connection between the carbon fiber base plate 1 and the foot pad 2, two arch bridge mechanisms 3 are fixedly arranged on the side of the carbon fiber base plate 1 by bolts, one of the arch bridge mechanisms 3 is provided with a knee clamping assembly for fixing the patient's knee, and the other arch bridge mechanism 3 is provided with an abdomen clamping assembly for fixing the patient's abdomen, and an airfoil head pad assembly 6 is fixedly arranged on the other side of the top of the carbon fiber base plate 1, seven reserved jacks 8 are provided on both sides of the edge of the carbon fiber base plate 1, the width of the carbon fiber base plate 1 is set to 630mm, and two carrying grip holes 7 are provided at both ends of the carbon fiber base plate 1;

[0022] The carbon fiber base plate 1 is widened from 530mm to 630mm, and 7 holes are opened on both sides of the carbon fiber base plate 1. The size of the hole is 115*45mm, and the horizontal spacing between two adjacent holes is 490mm. These 14 holes are used to place the six-dimensional bed bridge frame. The hole positions correspond to the letter hole positions of the bed board. The abdominal arch bridge and the knee arch bridge are also modified accordingly, and the width on both sides is increased to 630mm, which can be stuck on the modified carbon fiber base plate 1.

[0023] See also Figure 1 , Figure 2 , Figure 4 and Figure 5Furthermore, the arched bridge mechanism 3 includes two support frames 31 and an arched frame 32 slidably arranged between the two support frames 31. The outer sides of the two support frames 31 are fixedly installed with locking components for clamping the arched frames 32. A transverse slide groove 35 is provided at the top of the arched frame 32. A sliding block 36 is slidably arranged on the transverse slide groove 35. A locking seat 37 is fixedly arranged on one side of the sliding block 36. A locking buckle 38 is hinged on one side of the locking seat 37. A locking bolt 39 is threadedly connected to the locking buckle 38. A plurality of limit holes 34 are provided at the bottom of both sides of the arched frame 32. The locking components include limit A holder 33 and a wedge-shaped block 312 slidably arranged on the inner side of the limit holder 33, a pull rod 310 is fixedly arranged on one end of the wedge-shaped block 312, a spring 311 is sleeved on the middle part of the pull rod 310, one end of the pull rod 310 extends out of the limit holder 33, the wedge-shaped block 312 matches the limit hole 34, the knee compression assembly includes a knee compression rod 10 and a knee compression pad 11 fixedly arranged at the bottom end of the knee compression rod 10, the knee compression pad 11 is arranged opposite to the knee support pad 4, the abdominal compression assembly includes an abdominal compression rod 12 and an abdominal compression plate 9 fixedly arranged at the bottom end of the abdominal compression rod 12, and the abdominal compression plate 9 is arranged in a rounded triangle;

[0024] The knee and leg positions can be flexibly positioned. When the height of the arch frame 32 needs to be adjusted, the arch frame 32 is directly held and pressed down to press the bottom of the arch frame 32 into the support frame 31. When the arch frame 32 squeezes the wedge-shaped block 312, the spring 311 will shrink until the wedge-shaped block 312 is stuck in the appropriate limit hole 34. At this time, the height of the arch frame 32 is fixed, and the sliding block 36 can slide left and right on the horizontal slide groove 35, and is limited and fixed by the screws set on the sliding block 36. When the pressure rod is adjusted up and down, the locking bolt 39 is first loosened, and after sliding to adjust the position of the pressure rod, the locking bolt 39 is retightened. At this time, the locking buckle 38 will be clamped on the locking seat 37 for compression and fixation.

[0025] See also Figure 1 and Figure 3 Further, the wing-shaped headrest assembly 6 includes an oblique column 61 and a column slide 62 slidably arranged on the oblique column 61, an wing-shaped bottom plate 63 is fixedly arranged on the front of the column slide 62, a headrest 64 is fixedly installed on the top of the wing-shaped bottom plate 63, a pin 65 is threadedly connected to one side of the column slide 62, and the pin 65 is threadedly connected to the oblique column 61;

[0026] According to the height of the patient's head, first loosen the pin 65, slide the column slide 62 along the inclined column 61, and thus adjust the height of the wing-shaped base plate 63 so that the patient's head can be placed on the headrest 64, and finally retighten the pin 65. It can be flexibly adjusted. The headrest 64 is made of PU material.

[0027] When the embodiment of the present application is in use: the medical staff grasps the carrying grip holes 7 from both ends of the carbon fiber base plate 1, sets up the carbon fiber base plate 1 on the six-dimensional bed, and clamps and fixes it through the strip hole clamp frame 5. During radiotherapy, the patient lies directly on the carbon fiber base plate 1, with the knees placed on the knee support pads 4, the feet placed on the foot pads 2, and the patient's head placed on the headrest 64. Then the medical staff takes out the two arched bridge mechanisms 3 according to the positions of the patient's knees and abdomen, and fixes the arched bridge mechanisms 3 to the sides of the carbon fiber base plate 1 with screws, so that the knee clamping assembly is pressed against the bottom of the patient, and the abdomen clamping assembly is pressed and fixed against the patient's abdomen. At this time, the patient's position is fixed, and the bridge equipped with the six-dimensional bed can be directly inserted into the reserved socket 8 by clamping, which is easy to install and use.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning device for stereotactic radiotherapy, comprising a carbon fiber base plate (1) and two strip hole brackets (5) fixedly arranged on the carbon fiber base plate (1), characterized in that: A foot pad (2) is fixedly provided on one side of the top of the carbon fiber base plate (1), a knee support pad (4) is fixedly provided on one side of the connection between the carbon fiber base plate (1) and the foot pad (2), two arch-shaped bridge mechanisms (3) are fixedly provided on the side of the carbon fiber base plate (1) by bolts, one of the arch-shaped bridge mechanisms (3) is provided with a knee clamping assembly for fixing the patient's knees, and the other arch-shaped bridge mechanism (3) is provided with an abdomen clamping assembly for fixing the patient's abdomen, a wing-shaped head pad assembly (6) is fixedly provided on the other side of the top of the carbon fiber base plate (1), seven reserved sockets (8) are provided on both sides of the edge of the carbon fiber base plate (1), and the width of the carbon fiber base plate (1) is set to 630 mm; The bow-shaped bridge mechanism (3) comprises two support frames (31) and a bow-shaped frame (32) slidably arranged between the two support frames (31); a locking assembly for clamping the bow-shaped frame (32) is fixedly installed on the outer sides of the two support frames (31); a transverse sliding groove (35) is provided at the top of the bow-shaped frame (32); a sliding block (36) is slidably arranged on the transverse sliding groove (35); a locking seat (37) is fixedly arranged on one side of the sliding block (36); a locking buckle (38) is hinged on one side of the locking seat (37); a locking bolt (39) is threadedly connected to the locking buckle (38); and a plurality of limit clamping holes (34) are provided at the bottom of both sides of the bow-shaped frame (32).

2. A stereotactic radiotherapy positioning device according to claim 1, characterized in that: The locking assembly comprises a limit card seat (33) and a wedge-shaped card block (312) slidably arranged on the inner side of the limit card seat (33), a pull rod (310) is fixedly arranged on one end of the wedge-shaped card block (312), a spring (311) is sleeved on the middle part of the pull rod (310), one end of the pull rod (310) extends out of the limit card seat (33), and the wedge-shaped card block (312) matches the limit card hole (34).

3. A stereotactic radiotherapy positioning device according to claim 1, characterized in that: The knee compression assembly comprises a knee compression rod (10) and a knee compression pad (11) fixedly arranged at the bottom end of the knee compression rod (10), and the knee compression pad (11) is arranged directly opposite to the knee support pad (4).

4. A stereotactic radiotherapy positioning device according to claim 1, characterized in that: The abdominal compression assembly comprises an abdominal compression rod (12) and an abdominal compression plate (9) fixedly arranged at the bottom end of the abdominal compression rod (12); the abdominal compression plate (9) is arranged in the shape of a rounded triangle.

5. A stereotactic radiotherapy positioning device according to claim 1, characterized in that: The wing-shaped head pad assembly (6) comprises an inclined column (61) and a column slide (62) slidably arranged on the inclined column (61); a wing-shaped bottom plate (63) is fixedly arranged on the front of the column slide (62); a headrest (64) is fixedly installed on the top of the wing-shaped bottom plate (63); a pin (65) is threadedly connected to one side of the column slide (62); and the pin (65) is threadedly connected to the inclined column (61).

6. A stereotactic radiotherapy positioning device according to claim 1, characterized in that: Two carrying handle holes (7) are provided at both ends of the carbon fiber bottom plate (1).

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