Head and neck protection device for tumor radiotherapy

Abstract

The invention discloses a head and neck protection device for tumor radiotherapy, and relates to the technical field of medical instruments. The lower side of the fixing block is movably inserted into the bed board, and the fixing block is connected with the neck supporting pad through a supporting mechanism. The height adjusting mechanism is arranged in the bed board and is connected with the fixing block; the head supporting frame is arranged in the fixing frame, and a convex edge on the outer ring wall of the head supporting frame is movably inserted into an arc-shaped groove in the inner arc-shaped face of the fixing frame. The clamping mechanism is arranged in the head support frame; a plurality of teeth are fixed on the outer arc-shaped surface of the convex edge of the head support frame, the lower sides of the teeth are meshed with a driving gear, and the driving gear penetrates through the bottom wall of the fixed frame and then is embedded in the bed board; the rotating motor is embedded and fixed in the bed board, and an output shaft of the rotating motor is fixedly connected with the driving gear; the neck of a patient can be supported, the inclination angle of the head of the patient can be adjusted, and the patient can be supported, so that the phenomenon that the radiotherapy efficiency is reduced due to unstable placement of the head of the patient is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a head and neck protection device for tumor radiotherapy. Background Art

[0002] Head and neck tumors are one of the important application areas of radiotherapy. Since the structure of the head and neck is complex and contains many important organs, it is particularly important to protect the head and neck during radiotherapy. For head radiotherapy, the patient's head and neck usually need to be fixed during radiotherapy to facilitate irradiation. Since the human head and neck have relatively few support points, the patient lies directly on the pillow and needs to keep himself fixed at all times, which is very tiring. Therefore, during radiotherapy, it is easy for the patient's head to be unstable and often shake his head and neck, which can easily reduce the radiotherapy efficiency. Summary of the invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the prior art and provide a head and neck protection device for tumor radiotherapy that is reasonably designed and easy to use. The device can support the patient's neck while adjusting the inclination angle of the patient's head and providing support, thereby avoiding the phenomenon of unstable placement of the patient's head and reducing the efficiency of radiotherapy.

[0004] To achieve the above object, the present invention adopts the following technical scheme: it comprises a bed board, a neck support pad and a fixing frame, wherein a neck support pad is arranged on one side of the upper surface of the bed board, a fixing frame is arranged on one side of the neck support pad, the fixing frame is arranged in an arc shape, and the fixing frame is embedded and fixed on the bed board; it also comprises: A fixing block, wherein the fixing block is arranged at the lower side of the neck support pad, the upper side of the fixing block is inserted in the neck support pad, the lower side of the fixing block is movably inserted in the bed board, and the fixing block is connected to the neck support pad through a supporting mechanism; A height adjustment mechanism, wherein the height adjustment mechanism is arranged in the bed board and connected to the fixing block; A head support frame, wherein the head support frame is arranged in an arc shape, the head support frame is arranged in the fixing frame, and the convex edge on the outer ring wall of the head support frame is movably inserted into the arc groove on the inner arc surface of the fixing frame; The clamping mechanism is arranged in the head support frame; a plurality of teeth are fixed on the outer arc surface of the convex edge of the head support frame, and a driving gear is meshed on the lower side of the teeth. The driving gear passes through the bottom wall of the fixing frame and is embedded in the bed board; A rotating motor, wherein the rotating motor is embedded and fixed in the bed board, and the output shaft of the rotating motor is fixedly connected to the driving gear; Through the above technical scheme, the patient lies on the bed board with the neck located on the neck support pad, and the supporting mechanism is started according to the length of the patient's neck, and the length of the neck support pad is adjusted by the supporting mechanism, and then the height adjustment mechanism is started according to the height of the neck, and the height of the fixed block is adjusted by the height adjustment mechanism until the neck support pad contacts the patient's neck, thereby improving the supporting effect, and the patient's head is located in the head support frame, and the clamping mechanism is started, and the patient's head is clamped by the clamping mechanism, so that the patient's head can be supported and fixed, and when the angle of the head needs to be adjusted, the rotating motor is started, and the rotating motor drives the driving gear to rotate, and the driving gear is engaged with the teeth on the head support frame, thereby driving the head support frame to rotate, and the head support frame drives the patient's head to rotate through the clamping mechanism until the patient's head rotates to a suitable angle.

[0005] As a further improvement of the present invention, arc-shaped plates are symmetrically arranged on both sides of the convex edge of the head support frame, and the arc-shaped plates are movably inserted in the side walls of the arc-shaped groove of the fixing frame. The two sides between the two arc-shaped plates are fixedly connected by guide rods, and an adjusting screw rod is arranged on the lower side between the two arc-shaped plates. The two ends of the adjusting screw rod are respectively screwed on the two arc-shaped plates through bearings, and the middle end of the adjusting screw rod is screwed with the middle end of the convex edge of the head support frame through a thread. Through the above technical solution, the head support frame can be moved left and right by adjusting the screw rod according to the size of the patient's head until the head support frame moves to a suitable position.

[0006] As a further improvement of the present invention, the supporting mechanism comprises: Support blocks, there are three support blocks, and they are respectively fixed on the inner wall of the neck support pad and the inner walls on the left and right sides. On the left and right side walls of the upper support block, several support connecting rods are equidistantly connected from front to back through hinge seats, and the other end of the support connecting rod is rotated on the adjacent support block through the hinge seat; Internally threaded tubes, there are several internally threaded tubes, and they are screwed into the fixed block through bearings at equal distances from front to back, the threads at both ends of the internally threaded tubes are arranged oppositely, and screws are screwed into both ends of the internally threaded tubes through threads, and the screws pass through one end of the internally threaded tube and are fixed on the side wall of the support block adjacent thereto; A driving rod, wherein the driving rod is screwed into the fixed block through a bearing, and the front and rear ends of the driving rod respectively pass through the fixed block and are exposed outside the fixed block, and one end of the driving rod located inside the fixed block is connected to a plurality of internal threaded tubes through a plurality of worm gear pairs; Through the above technical solution, the driving rod is rotated, and the driving rod drives several internal threaded tubes to rotate synchronously through the worm gear pair. The internal threaded tubes drive the two screws inside each of them, so that the screws drive the corresponding support blocks to move. The two corresponding support blocks on the left and right drive the lower end of the support connecting rod to move while driving the two sides of the neck support pad to move, so that the upper end of the support connecting rod drives the upper support block to move.

[0007] As a further improvement of the present invention, the height adjustment mechanism comprises: There are two adjusting blocks, which are symmetrically arranged in the bed board, and the protrusions on the middle side of the adjusting blocks are inserted into the front and rear side walls of the fixed block, and the inclined surface of the protrusions is arranged to conflict with the inclined grooves on the inner walls of the adjusting blocks; A bidirectional screw rod, wherein the bidirectional screw rod is screwed to the inside of the bed plate through a bearing, and both ends of the bidirectional screw rod are screwed to the lower sides of the adjustment blocks at the front and rear sides through threads respectively; There are two adjusting rods, which are symmetrically connected to the bed board through bearings. The lower end of the adjusting rod is connected to the two ends of the bidirectional screw rod through a worm gear pair. The two adjusting rods are connected through a synchronous wheel transmission assembly. After the upper end of the adjusting rod passes through the bed board, a rotating disk is fixed; Through the above technical solution, one of the rotating disks is rotated, and the rotating disk drives the adjusting rod to rotate. The adjusting rod synchronous wheel transmission assembly drives the other adjusting rod to rotate. The two adjusting rods drive the bidirectional lead screw to rotate through the worm gear pair. The bidirectional lead screw drives the adjusting block to move through the threads at both ends. During the movement, the adjusting block drives the fixed block to move up and down until the fixed block moves to a suitable position.

[0008] As a further improvement of the present invention, sliding blocks are fixed on both side walls of the fixed block, and the sliding blocks are slidably arranged in the sliding grooves on the two inner walls of the bed board; Through the above technical solution, the fixing block can be limited while not affecting the up and down movement of the fixing block, thereby preventing the fixing block from falling out of the bed board.

[0009] As a further improvement of the present invention, the clamping mechanism comprises: Clamping plates, there are two clamping plates, and they are symmetrically arranged in the head support frame front and back, and an arc-shaped slider is arranged on the outer wall of the clamping plate through an angle adjustment mechanism, and the arc-shaped slider is slidably arranged on the arc-shaped inner wall of the head support frame; Clamping gears, there are several clamping gears, and they are arranged at equal amounts and angles on the front and rear sides of the head support frame. The two sides of the clamping gears are respectively screwed into the head support frame through bearings, and the several clamping gears on the same side are connected in pairs through synchronous wheel transmission components. The upper side of the clamping gear is meshed with the tooth groove on the outer ring wall of the adjacent arc-shaped slider; Driving gears, there are two driving gears, which are arranged in the lower side of the head support frame after being meshed with each other, and the two sides of the driving gears are screwed in the head support frame through bearings, and the driving gears are connected to the adjacent clamping gears through a synchronous wheel transmission assembly; A clamping motor, wherein the clamping motor is embedded and fixed in the head support frame, and an output shaft of the clamping motor is connected to one of the driving gears; Through the above technical solution, when the patient's head is resting in the head support frame, the clamping motor is started, and the clamping motor drives the driving gear connected to it to rotate, and the driving gear drives another driving gear to rotate in the opposite direction. The two driving gears respectively drive the clamping gears connected to them to rotate through the synchronous wheel transmission assembly. The clamping gear rotates through the cooperation of several synchronous wheel transmission assemblies. When the clamping gear rotates, it drives the corresponding arc-shaped slider to move. The arc-shaped slider drives the clamping plate to move through the angle adjustment mechanism. During the movement, the clamping plate is driven to rotate through the angle adjustment mechanism until the clamping plate contacts the patient's head, thereby achieving the clamping effect.

[0010] As a further improvement of the present invention, the angle adjustment mechanism comprises: A mounting plate, wherein the mounting plate is fixed to the outside of the arc-shaped slider, an electric push rod is fixed to a side wall of the mounting plate adjacent to the clamping plate, and an output end of the electric push rod is screwed to the clamping plate through a hinge seat; Moving blocks, there are two moving blocks, which are symmetrically slidably arranged in a slide groove on a side wall of the clamping plate adjacent to the mounting plate; A mounting block, wherein the mounting block is fixed on one side of the mounting plate, the mounting block is located between the two moving blocks, and the mounting block is screwed to the moving blocks on both sides through a shaft; Through the above technical scheme, the electric push rod is started according to the inclination of the clamping plate, and the electric push rod drives the upper side of the clamping plate to move, so that the clamping plate rotates with the moving block on the lower side and the shaft rod on the mounting block as the axis. During the rotation process, the moving block slides in the clamping plate until the clamping plate is perpendicular to the bed board.

[0011] As a further improvement of the present invention, a resistance pad is fixed on the bottom wall of the clamping plate, and the resistance pad is disposed in resistance with the inner arc wall of the head support frame; Through the above technical solution, the clamping plate can be supported to a certain extent by the resistance pad.

[0012] As a further improvement of the present invention, a protective pad is fixed on a side wall of the clamping plate adjacent to the center of the head support frame, and the lower side of the protective pad is arranged to abut against the abutment pad; Through the above technical solution, the clamping stability can be improved while preventing the two sides of the patient's head from contacting the side edges of the clamping plate, thereby improving the patient's comfort.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When supporting the patient's neck with a neck support pad, the support position can be adjusted accordingly according to the patient's body shape through the support mechanism and the height adjustment mechanism, thereby improving the support effect; 2. After the teeth on the outer arc surface of the head support frame are meshed with the driving gear, the head support frame can be driven by the driving motor to rotate, thereby adjusting the angle of the patient's head to facilitate radiotherapy operations; 3. A clamping mechanism is arranged inside the head support frame, which can clamp the patient's head, thereby providing support to the patient's head, avoiding the shaking of the head and improving the efficiency of radiotherapy; 4. The convex edge on the bottom wall of the head support frame can be adjusted in position by adjusting the screw rod, and at the same time, the screw rod can slide in the fixed frame through the arc plate, so as to adjust the position of the head support frame without affecting it, so as to meet the needs of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention.

[0015] Figure 2 It is an exploded view of the fixing block, the supporting mechanism and the neck support pad in the present invention.

[0016] Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0017] Figure 4 It is an exploded view of the fixing block and the height adjustment mechanism in the present invention.

[0018] Figure 5 It is an exploded view of the fixing frame, the head supporting frame, the clamping mechanism and the driving gear in the present invention.

[0019] Figure 6 It is an exploded view of the head support frame, the arc plate and the bidirectional screw rod in the present invention.

[0020] Figure 7 It is an exploded view of the clamping mechanism in the present invention.

[0021] Figure 8 It is an exploded view of the angle adjustment mechanism in the present invention.

[0022] Description of reference numerals: Bed board 1, neck support pad 2, fixing frame 3, fixing block 4, supporting mechanism 5, supporting block 5-1, supporting connecting rod 5-2, internal threaded tube 5-3, screw 5-4, driving rod 5-5, height adjustment mechanism 6, adjusting block 6-1, bidirectional screw 6-2, adjusting rod 6-3, rotating disk 6-4, head supporting frame 7, clamping mechanism 8, clamping plate 8-1, angle adjustment mechanism 8-2, mounting plate 8-2-1, electric push rod 8-2-2, moving block 8-2-3, mounting block 8-2-4, arc slider 8-3, clamping gear 8-4, driving gear 8-5, clamping motor 8-6, teeth 9, driving gear 10, rotating motor 11, arc plate 12, adjusting screw 13, sliding block 14, contact pad 15, protective pad 16. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention. Embodiment 1:

[0024] like Figure 1-Figure 8 As shown, this embodiment comprises a bed board 1, a neck support pad 2 and a fixing frame 3. The neck support pad 2 is arranged on the right side of the upper surface of the bed board 1, and the fixing frame 3 is arranged on the right side of the neck support pad 2. The fixing frame 3 is arranged in an arc shape, and the fixing frame 3 is embedded and welded on the bed board 1; it also comprises: A fixing block 4, wherein the fixing block 4 is arranged at the lower side of the neck support pad 2, the upper side of the fixing block 4 is inserted into the neck support pad 2, the lower side of the fixing block 4 is movably inserted into the bed board 1, and the fixing block 4 is connected to the neck support pad 2 through a supporting mechanism 5; A height adjustment mechanism 6 is provided in the bed board 1 and is connected to the fixed block 4; sliding blocks 14 are welded and fixed on both side walls of the fixed block 4, and the sliding blocks 14 are slidably provided in the slide grooves on the two inner walls of the bed board 1, so as to limit the fixed block 4 without affecting the up and down movement of the fixed block 4, thereby preventing the fixed block 4 from falling out of the bed board 1; The head support frame 7 is arranged in an arc shape, and the head support frame 7 is arranged in the fixing frame 3. The convex edge on the outer ring wall of the head support frame 7 is movably inserted in the arc groove on the inner arc surface of the fixing frame 3; arc plates 12 are symmetrically arranged on both sides of the convex edge of the head support frame 7, and the arc plates 12 are movably inserted in the side walls of the arc groove of the fixing frame 3. The two sides between the two arc plates 12 are fixedly connected by guide rods, and an adjusting screw rod 13 is arranged on the lower side between the two arc plates. The two ends of the adjusting screw rod 13 are respectively screwed on the two arc plates 12 through bearings, and the middle end of the adjusting screw rod 13 is screwed with the middle end of the convex edge of the head support frame 7 through a thread. According to the size of the patient's head, the head support frame 7 can be driven to move left and right by adjusting the screw rod 13 until the head support frame 7 moves to a suitable position; A clamping mechanism 8, wherein the clamping mechanism 8 is disposed in the head support frame 7; a plurality of teeth 9 are welded and fixed on the outer arc surface of the convex edge of the head support frame 7, and a driving gear 10 is meshed on the lower side of the teeth 9. The driving gear 10 passes through the bottom wall of the fixing frame 3 and is embedded in the bed board 1; The rotary motor 11 is embedded in and fixed in the bed board 1 , and the output shaft of the rotary motor 11 is fixedly connected to the driving gear 10 . Embodiment 2:

[0025] See also Figure 1-3 As shown, based on Example 1, the support mechanism 5 includes: Support blocks 5-1, there are three support blocks 5-1, and they are respectively glued and fixed on the upper inner wall and the inner walls on the left and right sides of the neck support pad 2. On the left and right side walls of the upper support block 5-1, there are several support connecting rods 5-2 that are equidistantly rotated from front to back through hinge seats, and the other end of the support connecting rod 5-2 is rotated on the adjacent support block 5-1 through a hinge seat; Internally threaded tubes 5-3, there are several internally threaded tubes 5-3, and they are screwed into the fixed block 4 through bearings at equal intervals from front to back, the threads at both ends of the internally threaded tube 5-3 are arranged oppositely, and screw rods 5-4 are screwed into both ends of the internally threaded tube 5-3 through threads, and the screw rods 5-4 pass through one end of the internally threaded tube 5-3 and are fixed to the side wall of the adjacent support block 5-1 through bolts; The driving rod 5-5 is screwed into the fixed block 4 through a bearing, and the front and rear ends of the driving rod 5-5 respectively pass through the fixed block 4 and are exposed on the outside of the fixed block 4. One end of the driving rod 5-5 located inside the fixed block 4 is connected to several internal threaded tubes 5-3 through several worm gear pairs. Embodiment 3:

[0026] See also Figure 4 As shown, based on Example 1, the height adjustment mechanism 6 comprises: Adjustment block 6-1, there are two adjustment blocks 6-1, and they are symmetrically arranged in the bed board 1, the protrusion on the middle side of the adjustment block 6-1 is inserted into the front and rear side walls of the fixed block 4, and the inclined surface of the protrusion is set against the inclined groove on the inner wall of the adjustment block 6-1; A bidirectional screw rod 6-2, wherein the bidirectional screw rod 6-2 is screwed to the inside of the bed plate 1 through a bearing, and both ends of the bidirectional screw rod 6-2 are screwed to the lower sides of the adjustment blocks 6-1 at the front and rear sides respectively through threads; There are two adjusting rods 6-3, and they are symmetrically screwed on the bed board 1 through bearings. The lower ends of the adjusting rods 6-3 are connected to the two ends of the bidirectional screw 6-2 through a worm gear pair. The two adjusting rods 6-3 are connected through a synchronous wheel transmission assembly. After the upper ends of the adjusting rods 6-3 pass through the bed board 1, a rotating disk 6-4 is welded and fixed. Embodiment 4:

[0027] See also Figure 1 , Figure 5 , Figure 7-8 As shown, based on Example 1, the clamping mechanism 8 comprises: The clamping plate 8-1 is two in number and is symmetrically arranged in the head support frame 7 front to back. An arc-shaped slider 8-3 is arranged on the outer wall of the clamping plate 8-1 through an angle adjustment mechanism 8-2, and the arc-shaped slider 8-3 is slidably arranged on the arc-shaped inner wall of the head support frame 7; a resistance pad 15 is glued and fixed on the bottom wall of the clamping plate 8-1, and the resistance pad 15 is arranged to resist the inner arc-shaped wall of the head support frame 7, and the clamping plate 8-1 can be supported to a certain extent by the resistance pad 15; a protective pad 16 is glued and fixed on a side wall of the clamping plate 8-1 adjacent to the center of the head support frame 7, and the lower side of the protective pad 16 is arranged to resist the resistance pad 15, which can improve the clamping stability while avoiding the two sides of the patient's head from resisting the side edges of the clamping plate 8-1, thereby improving the patient's comfort; Clamping gear 8-4, there are several clamping gears 8-4, and they are arranged at equal amounts and angles on the front and rear sides of the head support frame 7. The two sides of the clamping gear 8-4 are respectively screwed into the head support frame 7 through bearings, and the several clamping gears 8-4 on the same side are connected in pairs through synchronous wheel transmission components. The upper side of the clamping gear 8-4 is meshed with the tooth groove on the outer ring wall of the adjacent arc-shaped slider 8-3; Driving gear 8-5, there are two driving gears 8-5, and they are arranged on the lower side of the head support frame 7 after being meshed with each other, both sides of the driving gear 8-5 are screwed into the head support frame 7 through bearings, and the driving gear 8-5 is connected to the adjacent clamping gear 8-4 through a synchronous wheel transmission assembly; The clamping motor 8-6 is embedded and fixed in the head support frame 7, and the output shaft of the clamping motor 8-6 is connected to the driving gear 8-5 on the right side. Embodiment 5:

[0028] See also Figure 5 , Figure 7-8 As shown, based on Example 4, the angle adjustment mechanism 8-2 includes: The mounting plate 8-2-1 is glued and fixed on the outer side of the arc-shaped slider 8-3. An electric push rod 8-2-2 is fixed on a side wall of the mounting plate 8-2-1 adjacent to the clamping plate 8-1. The output end of the electric push rod 8-2-2 is screwed to the clamping plate 8-1 through a hinge seat; Moving blocks 8-2-3, there are two moving blocks 8-2-3, and they are symmetrically slidably arranged in the slide groove on the side wall of the clamping plate 8-1 adjacent to the mounting plate 8-2-1; The mounting block 8-2-4 is glued and fixed on one side of the mounting plate 8-2-1. The mounting block 8-2-4 is located between the two moving blocks 8-2-3. The mounting block 8-2-4 is screwed to the moving blocks 8-2-3 on both sides through an axle rod.

[0029] When using the present invention, the patient lies on the bed board 1 with the neck located on the neck support pad 2. According to the length of the patient's neck, the rotation driving rod 5-5 is started. The driving rod 5-5 drives several internal threaded tubes 5-3 to rotate synchronously through the worm gear pair. The internal threaded tubes 5-3 drive the two screw rods 5-4 inside each of them, so that the screw rods 5-4 drive the corresponding support blocks 5-1 to move. The two corresponding support blocks 5-1 on the left and right drive the lower ends of the support connecting rods 5-2 to move while driving the two sides of the neck support pad 2 to move, so that the upper ends of the support connecting rods 5-2 drive the upper support blocks 5-1 to move, and the length of the neck support pad 2 supported by the support blocks 5-1 is adjusted, and then the length of the neck support pad 2 supported by the support blocks 5-1 is adjusted. According to the height of the neck, one of the rotating disks 6-4 is rotated, and the rotating disk 6-4 drives the adjusting rod 6-3 to rotate, and the adjusting rod 6-3 synchronous wheel transmission assembly drives the other adjusting rod 6-3 to rotate, and the two adjusting rods 6-3 drive the bidirectional screw 6-2 to rotate through the worm gear pair, and the bidirectional screw 6-2 drives the adjusting block 6-1 to move through the threads at both ends. During the movement, the adjusting block 6-1 drives the fixed block 4 to move up and down until the fixed block 4 moves to a suitable position, until the neck support pad 2 contacts the patient's neck, thereby improving the supporting effect. When the patient's head is resting in the head support frame 7, the clamping motor 8-6 is started, and the clamping motor 8-6 drives the clamping motor connected thereto The driving gear 8-5 rotates, and the driving gear 8-5 drives another driving gear 8-5 to rotate in the opposite direction. The two driving gears 8-5 drive the clamping gear 8-4 connected thereto to rotate through the synchronous wheel transmission assembly respectively. The clamping gear 8-4 rotates through the cooperation of several synchronous wheel transmission assemblies. When the clamping gear 8-4 rotates, it drives the corresponding arc-shaped slider 8-3 to move. The arc-shaped slider 8-3 drives the clamping plate 8-1 to move through the angle adjustment mechanism 8-2. According to the inclination of the clamping plate 8-1, the electric push rod 8-2-2 is started, and the electric push rod 8-2-2 drives the upper side of the clamping plate 8-1 to move, so that the clamping plate 8-1 rotates with the moving block 8-2-3 on the lower side and the shaft on the mounting block 8-2-4 as the axis. During the rotation, the moving block 8-2-3 slides in the clamping plate 8-1 until the clamping plate 8-1 is perpendicular to the bed board 1, and until the clamping plate 8-1 contacts the patient's head to achieve a clamping effect. When the angle of the head needs to be adjusted, the rotating motor 11 is started, and the rotating motor 11 drives the driving gear 10 to rotate. The driving gear 10 engages with the teeth 9 on the head support frame 7, thereby driving the head support frame 7 to rotate. The head support frame 7 drives the patient's head to rotate through the clamping mechanism 8 until the patient's head rotates to a suitable angle.

[0030] Compared with the prior art, the beneficial effects of this specific implementation are as follows: 1. When the neck support pad 2 is used to support the patient's neck, the support position can be adjusted accordingly according to the patient's body shape through the support mechanism 5 and the height adjustment mechanism 6, thereby improving the support effect; 2. After the teeth 9 on the outer arc surface of the head support frame 7 are meshed with the driving gear 10, the head support frame 7 can be driven by the driving motor to rotate, thereby adjusting the angle of the patient's head to facilitate radiotherapy operations; 3. A clamping mechanism 8 is provided inside the head support frame 7, and the clamping mechanism 8 can clamp the patient's head, thereby providing support force to the patient's head, avoiding the shaking of the head, and improving the efficiency of radiotherapy; 4. The convex edge on the bottom wall of the head support frame 7 can be adjusted in position by adjusting the screw rod 13, and at the same time, the screw rod 13 can slide in the fixing frame 3 through the arc plate 12, so as to adjust the position of the head support frame 7 without affecting it, so as to meet the needs of different users.

[0031] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A head and neck protection device for tumor radiotherapy, comprising a bed board (1), a neck support pad (2) and a fixing frame (3), wherein a neck support pad (2) is arranged on one side of the upper surface of the bed board (1), and a fixing frame (3) is arranged on one side of the neck support pad (2), the fixing frame (3) is arranged in an arc shape, and the fixing frame (3) is embedded and fixed on the bed board (1); characterized in that: It also contains: a fixed block (4), the fixed block (4) being arranged on the lower side of the neck support pad (2), the upper side of the fixed block (4) being inserted into the neck support pad (2), the lower side of the fixed block (4) being movably inserted into the bed board (1), and the fixed block (4) being connected to the neck support pad (2) via a supporting mechanism (5); A height adjustment mechanism (6), wherein the height adjustment mechanism (6) is arranged in the bed board (1), and the height adjustment mechanism (6) is connected to the fixing block (4); A head support frame (7), wherein the head support frame (7) is arranged in an arc shape, the head support frame (7) is arranged in the fixing frame (3), and the convex edge on the outer ring wall of the head support frame (7) is movably inserted into the arc groove on the inner arc surface of the fixing frame (3); A clamping mechanism (8), wherein the clamping mechanism (8) is arranged in the head support frame (7); a plurality of teeth (9) are fixed on the outer arc surface of the convex edge of the head support frame (7); a driving gear (10) is meshed on the lower side of the teeth (9); and the driving gear (10) passes through the bottom wall of the fixing frame (3) and is embedded in the bed board (1); A rotating motor (11) is embedded in and fixed in the bed board (1), and an output shaft of the rotating motor (11) is fixedly connected to the driving gear (10).

2. A head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: Arc plates (12) are symmetrically arranged on both sides of the convex edge of the head support frame (7), and the arc plates (12) are movably inserted into the side walls of the arc groove of the fixing frame (3). The two sides between the two arc plates (12) are fixedly connected by a guide rod, and an adjusting screw rod (13) is arranged on the lower side between the two arc plates. The two ends of the adjusting screw rod (13) are respectively screwed to the two arc plates (12) through bearings, and the middle end of the adjusting screw rod (13) is screwed to the middle end of the convex edge of the head support frame (7) through a thread.

3. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: The supporting mechanism (5) comprises: Support blocks (5-1), the support blocks (5-1) being three in number and being fixed respectively on the upper inner wall and the inner walls on the left and right sides of the neck support pad (2); a plurality of support connecting rods (5-2) are equidistantly connected to the left and right side walls of the upper support block (5-1) from front to back via hinged seats, and the other ends of the support connecting rods (5-2) are rotatably connected to the adjacent support blocks (5-1) via hinged seats; An internally threaded tube (5-3), wherein the internally threaded tube (5-3) is in plurality and is equidistant from front to back and is screwed into the fixed block (4) via bearings, the threads at both ends of the internally threaded tube (5-3) are arranged opposite to each other, and a screw rod (5-4) is screwed into both ends of the internally threaded tube (5-3) via threads, and the screw rod (5-4) passes through one end of the internally threaded tube (5-3) and is fixed to the side wall of the support block (5-1) adjacent thereto; A driving rod (5-5) is screwed into a fixed block (4) via a bearing, and the front and rear ends of the driving rod (5-5) respectively pass through the fixed block (4) and are exposed outside the fixed block (4), and one end of the driving rod (5-5) located inside the fixed block (4) is connected to a plurality of internal threaded tubes (5-3) via a plurality of worm gear pairs.

4. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: The height adjustment mechanism (6) comprises: The adjusting blocks (6-1) are two in number and are symmetrically arranged in the bed board (1) in the front and rear directions. The protrusions on the middle sides of the adjusting blocks (6-1) are inserted into the front and rear side walls of the fixing block (4), and the inclined surfaces of the protrusions are arranged to abut against the inclined grooves on the inner walls of the adjusting blocks (6-1); A bidirectional screw rod (6-2), wherein the bidirectional screw rod (6-2) is screwed to the inside of the bed plate (1) via a bearing, and both ends of the bidirectional screw rod (6-2) are screwed to the lower sides of the adjustment blocks (6-1) at the front and rear sides respectively via threads; The adjusting rods (6-3) are two in number and are symmetrically connected to the bed board (1) through bearings. The lower ends of the adjusting rods (6-3) are connected to the two ends of the bidirectional screw rod (6-2) through a worm gear pair. The two adjusting rods (6-3) are connected through a synchronous wheel transmission assembly. After the upper ends of the adjusting rods (6-3) pass through the bed board (1), a rotating disk (6-4) is fixed thereto.

5. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: Sliding blocks (14) are fixed on both side walls of the fixed block (4), and the sliding blocks (14) are slidably arranged in sliding grooves on the two inner walls of the bed board (1).

6. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: The clamping mechanism (8) comprises: A clamping plate (8-1), wherein the clamping plates (8-1) are two in number and are symmetrically arranged in the head support frame (7) in a front-to-back manner, an arc-shaped slider (8-3) is arranged on the outer wall of the clamping plate (8-1) via an angle adjustment mechanism (8-2), and the arc-shaped slider (8-3) is slidably arranged on the arc-shaped inner wall of the head support frame (7); A clamping gear (8-4), wherein the clamping gear (8-4) is in plurality and is arranged at equal amounts and angles on the front and rear sides of the head support frame (7), the two sides of the clamping gear (8-4) are respectively screwed into the head support frame (7) via bearings, the plurality of clamping gears (8-4) on the same side are connected in pairs via synchronous wheel transmission components, and the upper side of the clamping gear (8-4) is meshed with a tooth groove on the outer ring wall of an adjacent arc-shaped slider (8-3); A driving gear (8-5), wherein the driving gears (8-5) are two and are arranged inside the lower side of the head support frame (7) after being meshed with each other, the two sides of the driving gear (8-5) are screwed into the head support frame (7) via bearings, and the driving gear (8-5) is connected to the adjacent clamping gear (8-4) via a synchronous wheel transmission assembly; A clamping motor (8-6) is embedded in and fixed in the head support frame (7), and an output shaft of the clamping motor (8-6) is connected to one of the driving gears (8-5).

7. The head and neck protection device for tumor radiotherapy according to claim 6, characterized in that: The angle adjustment mechanism (8-2) comprises: A mounting plate (8-2-1), wherein the mounting plate (8-2-1) is fixed to the outside of the arc-shaped slider (8-3), an electric push rod (8-2-2) is fixed to a side wall of the mounting plate (8-2-1) adjacent to the clamping plate (8-1), and an output end of the electric push rod (8-2-2) is screwed to the clamping plate (8-1) via a hinge seat; Moving blocks (8-2-3), there are two moving blocks (8-2-3), which are symmetrically slidably arranged in a slide groove on a side wall of the clamping plate (8-1) adjacent to the mounting plate (8-2-1); The mounting block (8-2-4) is fixed on one side of the mounting plate (8-2-1), the mounting block (8-2-4) is located between the two moving blocks (8-2-3), and the mounting block (8-2-4) is screwed to the moving blocks (8-2-3) on both sides via a shaft.

8. The head and neck protection device for tumor radiotherapy according to claim 7, characterized in that: A contact pad (15) is fixed on the bottom wall of the clamping plate (8-1), and the contact pad (15) is arranged to contact the inner arc-shaped wall of the head support frame (7).

9. The head and neck protection device for tumor radiotherapy according to claim 8, characterized in that: A protective pad (16) is fixed on a side wall of the clamping plate (8-1) adjacent to the center of the head support frame (7), and the lower side of the protective pad (16) is arranged to abut against the abutment pad (15).

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