Portable bracket for breast radiotherapy

Abstract

The invention belongs to the technical field of radiotherapy brackets, and particularly relates to a portable bracket for breast radiotherapy, which comprises a base plate, a frame is mounted in the middle of the top of the base plate, an unwinding assembly and a winding assembly are respectively mounted at the top of the base plate and on two sides of the frame, and sterile cloth is mounted between working ends of the unwinding assembly and the winding assembly; an adjusting assembly is installed on the top of the base plate and located between the unwinding assembly and the winding assembly, and the two movable ends of the adjusting assembly are fixedly connected with arm supports. According to the portable bracket for breast radiotherapy, the positions of the two soft cushions are kept in a synchronous adjustment state through the linkage structure, that is, when the position of the soft cushion on one side is moved, the soft cushion on the other side is synchronously driven to move, and then it is guaranteed that the two soft cushions are in a constantly symmetrical state; and the positions of the soft cushion and the handheld rod can be finely adjusted in a matched manner according to different users, so that each person is in the optimal state during use, and the use comfort of the patient is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of radiotherapy brackets, and in particular to a lightweight bracket for breast radiotherapy. Background Art

[0002] The current era of breast bracket design is the era of ordinary radiotherapy, that is, irradiation is performed with source-skin distance. The area to be irradiated is as flat as possible, so there is a lifting bottom to keep the chest flat during radiotherapy. In addition, radiotherapy has special requirements for the materials used. There should be no scattering, no radiation, and no shielding of rays. Most of the current radiotherapy methods are isocentric irradiation, and there is no need to consider whether the radiotherapy area is flat. Breast radiotherapy is an important auxiliary treatment for breast cancer patients after surgery, and its accuracy directly affects the treatment effect and patient prognosis. During radiotherapy, patients need to remain in a supine position and raise their arms to the head area to avoid radiation damage to their arms.

[0003] In the prior art, radiotherapy brackets usually adopt a double-arm support structure, which adapts to the body shape differences of different patients through adjustable support ends. The two arm support ends of the existing bracket adopt independent adjustment mechanisms, and the angles and positions need to be adjusted one by one during operation. The operator can only rely on hand feel and experience to control the symmetry, and it is difficult to ensure that the bilateral support ends are strictly symmetrical in three-dimensional space. This can easily lead to uneven force on the patient's arms, causing muscle fatigue, position displacement and other problems. At the same time, asymmetric support can easily cause excessive traction or compression of the patient's shoulder joint. Radiotherapy is a long-term treatment, and long-term treatment may induce complications such as brachial plexus injury, and the comfort level of the bracket is low. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present invention after paying a lot of creative work.

[0005] Specifically, the technical problem to be solved by the present invention is to provide a lightweight bracket for breast radiotherapy to solve the technical problem that the current bracket is difficult to ensure that the bilateral supporting ends are strictly symmetrical in three-dimensional space, which easily leads to uneven force on the patient's arms.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A portable bracket for breast radiotherapy, comprising a pad, a frame is installed in the middle of the top of the pad, a headrest is placed on the top of the pad and in the inner cavity of the frame, a reeling assembly and a reeling assembly are installed on the top of the pad and on both sides of the frame, and a sterile cloth is installed between the working ends of the reeling assembly and the reeling assembly;

[0008] An adjustment component is installed on the top of the pad and between the unwinding component and the rewinding component, and both movable ends of the adjustment component are fixedly connected to arm supports, and a soft cushion is installed on one end surface of the arm support away from the adjustment component;

[0009] The adjusting assembly includes a semicircular bar, both ends of which are slidably mounted with a U-shaped sliding bin, and an arm support is fixed to the top of the U-shaped sliding bin, a handgrip is welded to the inner side of the U-shaped sliding bin, an installation cavity is provided at the bottom of the semicircular bar, an installation shaft is rotatably mounted in the middle of the installation cavity, a second gear is mounted on the installation shaft, arc-shaped racks meshing with the second gear are slidably mounted on both sides of the installation cavity, and a U-shaped connecting seat is fixedly connected between the arc-shaped rack and the U-shaped sliding bin on the same side.

[0010] As an improved technical solution, the adjustment assembly also includes two columns installed on both sides of the top of the pad, and a guide seat installed in the middle of the top of the pad, the top of the column is rotatably installed with a hinge block, and the semicircular bar is fixed between the tops of the two hinge blocks, the guide seat is slidably installed with an arc-shaped guide bar through an arc-shaped guide cavity opened at the top of the guide seat, and the end of the arc-shaped guide bar close to the semicircular bar is fixedly connected to the semicircular bar.

[0011] As an improved technical solution, the U-shaped sliding bin is provided with a through hole toward the outside, and a threaded sleeve is fixed at a position of the U-shaped sliding bin facing the through hole toward the outside, a locking bolt is installed in the internal thread of the threaded hole on the threaded sleeve, and the tail end of the locking bolt is in conflict with the arc surface of the semicircular strip.

[0012] As an improved technical solution, a through hole is formed on one end face of the guide seat away from the semicircular strip, and a threaded sleeve 2 is fixed at a position of the guide seat opposite the through hole, a locking bolt 2 is installed in the internal thread of the threaded hole on the threaded sleeve 2, and the tail end of the locking bolt 2 is in conflict with the outer wall surface of the arc-shaped guide strip.

[0013] As an improved technical solution, the unwinding assembly and the rewinding assembly have the same structural size. The unwinding assembly includes an upper cover and a lower bin. A reel is rotatably installed between the interior of the upper cover and the lower bin. Limiting rings are sleeved on both ends of the reel, and the sterile cloth is wound around the reel and located between the limiting rings on both sides. An inlet and outlet are opened inwardly of the lower bin for the sterile cloth to pass through, and a blocking strip that penetrates deep into the inlet and outlet is fixed to the bottom of the upper cover and one side close to the inlet and outlet.

[0014] As an improved technical solution, lower pressure seats are fixed at both ends of the upper cover, a semicircular groove 1 is opened on one end face of the lower pressure seat close to the lower bin, and a half-moon bearing 1 is fixed inside the semicircular groove 1, cross beams are fixed at both ends of the lower bin, a semicircular groove 2 is opened in the middle of the top of the cross beam, a half-moon bearing 2 is fixed inside the semicircular groove 2, and a half-moon bearing 2 is fixed inside the semicircular groove 2, and the scroll is rotated between the half-moon bearing 2 and the half-moon bearing 1 on the same side.

[0015] As an improved technical solution, the peripheral surface of the limit ring is provided with a plurality of tooth grooves at equal intervals, and a damping shaft is rotatably installed at both ends of the tooth groove and below the reel, and a gear meshing with the tooth groove is installed at one end of the damping shaft.

[0016] As an improved technical solution, a servo motor is installed at the tail end of the upper and lower warehouses of the sterile cloth, and the driving end of the servo motor is fixedly connected to an electromagnet. A notch end is provided at the end of the sterile cloth reel close to the servo motor, and an iron sheet is installed at the end of the notch end close to the servo motor, and the opposite surfaces of the electromagnet and the iron sheet are in a magnetic adsorption state.

[0017] As an improved technical solution, positioning columns are fixed at the four corner ends inside the upper cover, and connecting seats are installed at the four corner ends inside the lower bin. A positioning hole that is engaged with the positioning column is opened on the top of the connecting seat, and a magnetic column 1 is installed inside the positioning hole. A magnetic column 2 is embedded and installed at one end of the positioning column close to the connecting seat, and the opposing surfaces of the magnetic column 1 and the magnetic column 2 are in a magnetic adsorption state.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are:

[0019] 1. The present invention maintains the positions of the two cushions in a synchronous adjustment state through a linkage structure, that is, when the position of the cushion on one side is moved, the cushion on the other side will also be driven to move synchronously, thereby ensuring that the two cushions are always in a symmetrical state, and the positions of the cushions and the handgrip can be fine-tuned according to different users, so that each person is in the most suitable state when using it, effectively improving the comfort of patients.

[0020] 2. The present invention adjusts the inclination angle of the semicircular bar accordingly through the range of lifting and lowering of the arc-shaped guide bar in the arc-shaped guide cavity, and can adjust the cushion to its most suitable angle according to different users, thereby improving the comfort of the user's arms when placing on the cushion, and fixes it by means of bolt locking, which is convenient for rapid adjustment of the cushion angle.

[0021] 3. In the present invention, the sterile cloth is spread over the top of the headrest to shield it. When the patient's head is placed on the headrest, it is in direct contact with the sterile cloth to reduce contamination of the headrest. When the next patient uses it, the winding component winds up the sterile cloth, pulls out the sterile cloth inside the unwinding component, and uses a new sterile cloth to spread on the headrest to avoid different patients using the same section of sterile cloth. This ensures that each patient uses a new sterile cloth, helps to avoid hygiene differences between different patients, and helps to avoid mutual sensing of head bacteria. The headrest is directly placed inside the frame, which is also convenient for quick replacement and cleaning of the headrest.

[0022] 4. The present invention installs the upper cover on the lower bin, and the reel will be clamped between the second and first half-moon bearings, thus completing the installation of the reel. This makes it easy to quickly install and disassemble the reel and replace the sterile cloth. The reel rotates between the second and first half-moon bearings, and the reel rotates more smoothly. The positioning column enters the interior of the positioning hole, and the upper cover and the lower bin are fixed together under the clamping action of the positioning column and the positioning hole, which also improves the accuracy of clamping the reel between the second and first half-moon bearings. In addition, under the magnetic attraction of the magnetic column one and the magnetic column two, the firmness of the upper cover installed on the lower bin is improved.

[0023] 5. In the present invention, when the reel rotates, the tooth socket will be driven to rotate. Under the meshing transmission action of the tooth socket and gear 1, the rotation of the reel will drive the damping shaft to rotate. Under the damping action of the damping shaft, when the servo motor does not drive the reel to rotate, the tissue reel rotates by itself, preventing the sterile cloth from loosening from the reel by itself, which is beneficial to ensure the tightness of the sterile cloth winding between the reels on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0025] Figure 1 The present invention is a schematic diagram of the overall structure of a portable bracket for breast radiotherapy.

[0026] Figure 2 The present invention is a schematic structural diagram of an adjustment component of a portable bracket for breast radiotherapy.

[0027] Figure 3 The present invention is a schematic bottom view of the semicircular strip of a portable bracket for breast radiotherapy.

[0028] Figure 4The present invention is a schematic structural diagram of an unwinding assembly, a rewinding assembly and a sterile cloth of a portable bracket for breast radiotherapy.

[0029] Figure 5 The present invention is a schematic structural diagram of an unwinding assembly of a portable bracket for breast radiotherapy.

[0030] Figure 6 The present invention is a schematic structural diagram of an upper cover of a portable bracket for breast radiotherapy.

[0031] Figure 7 The present invention is a schematic diagram of the internal structure of the lower compartment of a portable bracket for breast radiotherapy.

[0032] Figure 8 The present invention is a partial cross-sectional structural schematic diagram of a reeling assembly of a portable bracket for breast radiotherapy.

[0033] Description of reference numerals:

[0034] 1. Pad; 2. Unwinding assembly; 21. Upper cover; 211. Positioning column; 212. Lower pressure seat; 213. Half-moon bearing 1; 214. Blocking strip; 22. Lower bin; 221. Connecting seat; 222. Crossbeam; 223. Positioning hole; 224. Half-moon bearing 2; 225. Inlet and outlet; 23. Reel; 24. Limiting ring; 25. Tooth groove; 26. Damping shaft; 27. Gear 1; 3. Rewinding assembly; 4. Sterile cloth; 5. Headrest; 6. Frame; 7. Adjustment assembly; 7 1. Column; 72. Articulated block; 73. U-shaped slide; 74. Locking bolt 1; 75. Threaded sleeve 1; 76. Handlebar; 77. Guide seat; 78. Locking bolt 2; 79. Threaded sleeve 2; 710. Arc guide strip; 711. Semicircular strip; 712. Mounting cavity; 713. U-shaped connecting seat; 714. Arc rack; 715. Mounting shaft; 716. Gear 2; 8. Arm support; 9. Cushion; 10. Servo motor; 11. Electromagnet; 12. Iron sheet; 13. Notched end. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0038] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] like Figures 1 to 8 As shown together, the present embodiment provides a portable bracket for breast radiotherapy, which includes a pad 1, a frame 6 is installed in the middle of the top of the pad 1, a headrest 5 is placed on the top of the pad 1 and in the inner cavity of the frame 6, and the headrest 5 is directly placed inside the frame 6, which is also convenient for quick replacement and cleaning of the headrest 5, a unwinding component 2 and a winding component 3 are installed on the top of the pad 1 and on both sides of the frame 6, a sterile cloth 4 is installed between the working ends of the unwinding component 2 and the winding component 3, and a sterile cloth 4 is installed between the unwinding component 2 and the winding component 3. The sterile cloth 4 is rolled up by the unwinding component 3, so that the sterile cloth 4 is spread over the headrest 5 to cover it. When the patient's head is placed on the headrest 5, it is in direct contact with the sterile cloth 4, reducing the contamination of the headrest 5. When the next patient is replaced, the rolling component 3 rolls up the sterile cloth 4, pulls out the sterile cloth 4 inside the unwinding component 2, and spreads a new sterile cloth 4 on the headrest 5, avoiding different patients from using the same section of sterile cloth 4, ensuring that each patient uses a new sterile cloth 4, which helps to avoid the hygiene difference between different patients and helps to avoid the mutual sensing of head bacteria;

[0040] An adjusting component 7 is installed on the top of the pad 1 and between the unwinding component 2 and the winding component 3. Both movable ends of the adjusting component 7 are fixedly connected to arm supports 8. A cushion 9 is installed on one end of the arm support 8 away from the adjusting component 7.

[0041] The adjustment component 7 includes a semicircular bar 711, both ends of which are slidably mounted with a U-shaped sliding bin 73, and the arm support 8 is fixed on the top of the U-shaped sliding bin 73. A handgrip 76 is welded to the inner side of the U-shaped sliding bin 73. A mounting cavity 712 is provided at the bottom of the semicircular bar 711, and a mounting shaft 715 is rotatably mounted in the middle of the mounting cavity 712. A gear 2 716 is mounted on the mounting shaft 715. Arc-shaped racks 714 meshing with the gear 2 716 are slidably mounted on both sides of the mounting cavity 712, and a U-shaped connecting seat 713 is fixedly connected between the arc-shaped rack 714 and the U-shaped sliding bin 73 on the same side.

[0042] The linkage structure maintains the positions of the two cushions 9 in a synchronously adjusted state, thereby ensuring that the two cushions 9 are always symmetrical, and the positions of the cushions 9 and the grip bar 76 can be fine-tuned according to different users, so that each person is in the most suitable state when using it, effectively improving the comfort of patients.

[0043] like Figures 1 to 3 As shown together, in this embodiment, the adjustment component 7 also includes two columns 71 installed on both sides of the top of the pad 1, and a guide seat 77 installed in the middle of the top of the pad 1. The top of the column 71 is rotatably installed with a hinge block 72, and the semicircular bar 711 is fixed between the tops of the two hinge blocks 72. The guide seat 77 is slidably installed with an arc-shaped guide bar 710 through an arc-shaped guide cavity opened on its top, and the end of the arc-shaped guide bar 710 close to the semicircular bar 711 is fixedly connected to the semicircular bar 711. The inclination angle of the semicircular bar 711 is adjusted accordingly through the range of lifting and lowering of the arc-shaped guide bar 710 in the arc-shaped guide cavity. The cushion 9 can be adjusted to its most suitable angle according to different users, thereby improving the comfort of the user's arms resting on the cushion 9, and it is fixed by bolt locking, which is convenient for rapid adjustment of the angle of the cushion 9.

[0044] like Figures 1 to 3 As shown together, in this embodiment, a through hole is opened on the outside of the U-shaped sliding bin 73, and a threaded sleeve 75 is fixed at a position of the U-shaped sliding bin 73 facing the through hole on the outside, and a locking bolt 74 is installed on the internal thread of the threaded hole of the threaded sleeve 75, and the tail end of the locking bolt 74 is in conflict with the arc surface of the semicircular strip 711.

[0045] like Figures 1 to 3 As shown together, in this embodiment, a through hole is formed on one end face of the guide seat 77 away from the semicircular strip 711, and a threaded sleeve 79 is fixed at a position of the guide seat 77 opposite the through hole, a locking bolt 78 is installed on the internal thread of the threaded hole of the threaded sleeve 79, and the tail end of the locking bolt 78 is in conflict with the outer wall surface of the arc-shaped guide strip 710.

[0046] like Figures 4 to 8As shown together, in the present embodiment, the unwinding assembly 2 and the winding assembly 3 have the same structural size, the unwinding assembly 2 comprises an upper cover 21 and a lower bin 22, and the upper cover 21 is detachably mounted at the opening at the top of the lower bin 22, the lower bin 22 is fixed to the top of the pad 1, a reel 23 is rotatably mounted between the interior of the upper cover 21 and the lower bin 22, both ends of the reel 23 are sleeved with limiting rings 24, and the sterile cloth 4 is wound on the reel 23 and is located between the limiting rings 24 on both sides, an inlet and outlet 225 for the sterile cloth 4 to pass through is opened on the inner side of the lower bin 22, and a blocking strip 214 that penetrates deep into the inlet and outlet 225 is fixed to the bottom of the upper cover 21 and one side close to the inlet and outlet 225.

[0047] like Figure 6 to Figure 7 As shown together, in this embodiment, lower pressure seats 212 are fixed at both ends of the upper cover 21, a semicircular groove 1 is opened on one end face of the lower pressure seat 212 close to the lower bin 22, and a half-moon bearing 213 is fixed inside the semicircular groove 1, cross beams 222 are fixed at both ends of the lower bin 22, a semicircular groove 2 is opened in the middle of the top of the cross beam 222, a half-moon bearing 224 is fixed inside the semicircular groove 2, and the scroll 23 is rotatably arranged between the half-moon bearing 224 and the half-moon bearing 213 on the same side.

[0048] The installation process of Reel 23 is as follows:

[0049] Remove the upper cover 21 from the lower warehouse 22, place the two ends of the reel 23 inside the two half-moon bearings 224 respectively, and make the sterile cloth 4 inside the inlet and outlet 225, then install the upper cover 21 on the lower warehouse 22, at this time the reel 23 will be clamped between the half-moon bearing 224 and the half-moon bearing 1 213, and the installation of the reel 23 can be completed, which makes it easy to quickly install and disassemble the reel 23 and replace the sterile cloth 4, and the reel 23 rotates between the half-moon bearing 224 and the half-moon bearing 1 213, and the reel 23 rotates more smoothly.

[0050] like Figure 7 As shown, in this embodiment, a plurality of tooth grooves 25 are provided on the peripheral surface of the limit ring 24 at equal intervals, and a damping shaft 26 is rotatably installed at both ends of the tooth grooves 25 and located below the reel 23, and a gear 27 meshing with the tooth grooves 25 is installed at one end of the damping shaft 26. When the reel 23 rotates, the tooth grooves 25 are driven to rotate. Under the meshing transmission action of the tooth grooves 25 and the gear 27, the rotation of the reel 23 drives the damping shaft 26 to rotate. Under the damping action of the damping shaft 26, when the servo motor 10 does not drive the reel 23 to rotate, the tissue reel 23 rotates by itself to prevent the sterile cloth 4 from loosening from the reel 23 by itself, which is beneficial to ensure the tightness of the sterile cloth 4 wrapped between the reels 23 on both sides.

[0051] like Figure 8 As shown, in this embodiment, a servo motor 10 is installed at the tail end of the upper and lower bins 22 of the sterile cloth 4, and the driving end of the servo motor 10 is located inside the lower bin 22, and the driving end of the servo motor 10 is fixedly connected to an electromagnet 11, and a notch end 13 is provided at one end of the upper reel 23 of the sterile cloth 4 close to the servo motor 10, and an iron sheet 12 is installed at one end of the notch end 13 close to the servo motor 10, and the opposite surfaces of the electromagnet 11 and the iron sheet 12 are in a magnetic adsorption state.

[0052] The process of rolling up the sterile cloth 4 is as follows:

[0053] Turn on the magnetic adsorption between the electromagnet 11 and the iron sheet 12, and the servo motor 10 drives the electromagnet 11 to rotate, which will drive the iron sheet 12 to rotate and then drive the reel 23 close to the side of the servo motor 10 to rotate and reel in the sterile cloth 4. When the sterile cloth 4 is dragged, the sterile cloth 4 inside the unwinding assembly 2 is unwound.

[0054] like Figures 5 to 7 As shown together, in this embodiment, positioning columns 211 are fixed to the four corner ends inside the upper cover 21, and connecting seats 221 are installed at the four corner ends inside the lower chamber 22. A positioning hole 223 that is engaged with the positioning column 211 is opened on the top of the connecting seat 221, and a magnetic column 1 is installed inside the positioning hole 223. A magnetic column 2 is embedded and installed at one end of the positioning column 211 close to the connecting seat 221, and the opposite surfaces of the magnetic column 1 and the magnetic column 2 are in a magnetic adsorption state.

[0055] The installation process of the upper cover 21 and the lower compartment 22 is as follows:

[0056] The positioning column 211 enters the interior of the positioning hole 223, and under the clamping action of the positioning column 211 and the positioning hole 223, the upper cover 21 and the lower bin 22 are fixed together, which also improves the accuracy of the half-moon bearing 224 and the half-moon bearing 1 213 clamping the reel 23, and under the magnetic attraction action of the magnetic column 1 and the magnetic column 2, the firmness of the upper cover 21 installed on the lower bin 22 is improved.

[0057] When in use, the adjustment process of the horizontal position of the two cushions 9 is as follows:

[0058] The locking bolt 74 is rotated under the threaded transmission action between it and the threaded sleeve 75 to release the interference and locking between the locking bolt 74 and the outer wall of the semicircular strip 711, so that the U-shaped slide 73 can slide along the semicircular strip 711. When the U-shaped slide 73 moves, the arc-shaped rack 714 is driven to move through the U-shaped connecting seat 713. Under the meshing transmission action of the two arc-shaped racks 714 and the gear 2 716, the movement of one arc-shaped rack 714 will synchronously drive the movement of the other arc-shaped rack 714, and then drive the movement of the other U-shaped slide 73. That is, when the position of the soft pad 9 on one side is moved, the soft pad 9 on the other side will also be synchronously driven to move.

[0059] After the adjustment is completed, the locking bolt 74 is rotated in the reverse direction to make it contact with the outer wall surface of the semicircular strip 711 again for locking, so as to prevent the cushion 9 from sliding when not in use, thereby improving the stability of use, and the positions of the two cushions 9 can be adjusted at one time, which is convenient and quick;

[0060] The adjustment process of the soft pad 9 angle is as follows:

[0061] Under the threaded transmission action of the second locking bolt 78 and the second threaded sleeve 79, the locking bolt 78 moves outward to release the interference and locking with the outer wall of the arc-shaped guide strip 710, driving the arc-shaped guide strip 710 to slide vertically inside the arc-shaped guide cavity on the guide seat 77, and using the semicircular strip 711 to rotate with the two hinge blocks 72 as the rotation point. The rotation of the semicircular strip 711 can also adjust the inclination angle of the cushion 9. After the adjustment is completed, the locking bolt 78 is rotated in the opposite direction to make it conflict with the outer wall of the arc-shaped guide strip 710 again, and the semicircular strip 711 is locked and fixed to keep the cushion 9 in the inclined state;

[0062] A sterile cloth 4 is installed between the unwinding component 2 and the winding component 3. The winding component 3 winds up the sterile cloth 4 so that the sterile cloth 4 is spread over the headrest 5 to cover it. When the patient's head is placed on the headrest 5, it is in direct contact with the sterile cloth 4 to reduce contamination of the headrest 5. When the next patient is replaced, the winding component 3 winds up the sterile cloth 4, pulls out the sterile cloth 4 inside the unwinding component 2, and spreads a new sterile cloth 4 on the headrest 5.

[0063] It should be understood that the purpose of these embodiments is only to illustrate the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all of these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A portable bracket for breast radiotherapy, characterized in that: It comprises a backing plate (1), a frame (6) is installed in the middle of the top of the backing plate (1), a headrest (5) is placed on the top of the backing plate (1) and in the inner cavity of the frame (6), a reeling assembly (2) and a reeling assembly (3) are installed on the top of the backing plate (1) and on both sides of the frame (6), and a sterile cloth (4) is installed between the working ends of the reeling assembly (2) and the reeling assembly (3); An adjustment component (7) is installed on the top of the pad (1) and between the unwinding component (2) and the rewinding component (3); both movable ends of the adjustment component (7) are fixedly connected to arm supports (8); and a soft cushion (9) is installed on one end surface of the arm support (8) away from the adjustment component (7); The adjustment component (7) comprises a semicircular bar (711), both ends of which are slidably mounted with a U-shaped sliding bin (73), and an arm support (8) is fixed on the top of the U-shaped sliding bin (73), the inner side of the U-shaped sliding bin (73) is welded with a handshake lever (76), the bottom of the semicircular bar (711) is provided with a mounting cavity (712), a mounting shaft (715) is rotatably mounted in the middle of the mounting cavity (712), a gear 2 (716) is mounted on the mounting shaft (715), arc-shaped racks (714) meshing with the gear 2 (716) are slidably mounted on both sides of the mounting cavity (712), and a U-shaped connecting seat (713) is fixedly connected between the arc-shaped rack (714) and the U-shaped sliding bin (73) on the same side.

2. A portable bracket for breast radiotherapy according to claim 1, characterized in that: The adjustment assembly (7) further comprises two columns (71) mounted on both sides of the top of the pad (1), and a guide seat (77) mounted in the middle of the top of the pad (1); a hinge block (72) is rotatably mounted on the top of the column (71), and a semicircular bar (711) is fixed between the tops of the two hinge blocks (72); an arc-shaped guide bar (710) is slidably mounted on the guide seat (77) through an arc-shaped guide cavity opened on the top of the guide seat (77), and one end of the arc-shaped guide bar (710) close to the semicircular bar (711) is fixedly connected to the semicircular bar (711).

3. A portable bracket for breast radiotherapy according to claim 2, characterized in that: The U-shaped sliding bin (73) is provided with a through hole toward the outside, and a threaded sleeve (75) is fixed at a position of the U-shaped sliding bin (73) facing the through hole toward the outside, and a locking bolt (74) is threadedly installed inside the threaded hole on the threaded sleeve (75), and the tail end of the locking bolt (74) is in conflict with the arc surface of the semicircular strip (711).

4. A portable bracket for breast radiotherapy according to claim 3, characterized in that: A through hole is formed on one end face of the guide seat (77) away from the semicircular strip (711), and a second threaded sleeve (79) is fixed at a position of the guide seat (77) opposite to the through hole. A second locking bolt (78) is threadedly installed inside the threaded hole of the second threaded sleeve (79), and the tail end of the second locking bolt (78) is in conflict with the outer wall surface of the arc-shaped guide strip (710).

5. A portable bracket for breast radiotherapy according to claim 4, characterized in that: The unwinding assembly (2) and the rewinding assembly (3) are of the same structure and size. The unwinding assembly (2) comprises an upper cover (21) and a lower bin (22). A reel (23) is rotatably mounted between the interior of the upper cover (21) and the lower bin (22). Both ends of the reel (23) are sleeved with limit rings (24), and the sterile cloth (4) is wound around the reel (23) and is located between the limit rings (24) on both sides. An inlet and outlet (225) for the sterile cloth (4) to pass through is provided on the inner side of the lower bin (22). A blocking strip (214) that penetrates into the interior of the inlet and outlet (225) is fixed to the bottom of the upper cover (21) and on one side close to the inlet and outlet (225).

6. A portable bracket for breast radiotherapy according to claim 5, characterized in that: A lower pressure seat (212) is fixed at both ends of the upper cover (21), a semicircular groove 1 is provided on one end surface of the lower pressure seat (212) close to the lower bin (22), and a half-moon bearing 1 (213) is fixed inside the semicircular groove 1, a cross beam (222) is fixed at both ends of the lower bin (22), a semicircular groove 2 is provided in the middle of the top of the cross beam (222), a half-moon bearing 2 (224) is fixed inside the semicircular groove 2, and a half-moon bearing 2 (224) is fixed inside the half-moon bearing 1 (213) on the same side is rotatably arranged between the scroll (23).

7. A portable bracket for breast radiotherapy according to claim 6, characterized in that: The peripheral surface of the limiting ring (24) is provided with a plurality of tooth grooves (25) at equal intervals, and a damping shaft (26) is rotatably mounted at both ends of the tooth grooves (25) and located below the reel (23), and a gear (27) meshing with the tooth grooves (25) is mounted at one end of the damping shaft (26).

8. A portable bracket for breast radiotherapy according to claim 7, characterized in that: A servo motor (10) is installed at the tail end of the upper and lower bins (22) of the sterile cloth (4), and the driving end of the servo motor (10) is fixedly connected to an electromagnet (11). A notch end (13) is provided at one end of the upper reel (23) of the sterile cloth (4) close to the servo motor (10), and an iron sheet (12) is installed at one end of the notch end (13) close to the servo motor (10), and the opposing surfaces of the electromagnet (11) and the iron sheet (12) are in a magnetic adsorption state.

9. A portable bracket for breast radiotherapy according to claim 8, characterized in that: The four corners of the upper cover (21) are fixed with positioning posts (211), the four corners of the lower compartment (22) are installed with connecting seats (221), the top of the connecting seat (221) is provided with a positioning hole (223) engaged with the positioning post (211), a magnetic post 1 is installed inside the positioning hole (223), a magnetic post 2 is embedded and installed at one end of the positioning post (211) close to the connecting seat (221), and the opposite surfaces of the magnetic post 1 and the magnetic post 2 are in a magnetic adsorption state.

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