An adjustable head and neck positioning frame for tumor radiotherapy

Abstract

The present invention discloses an adjustable head and neck positioning frame for tumor radiotherapy, including a base plate and a lifting assembly, the lifting assembly includes side frames symmetrically arranged on both sides of the base plate, the two side frames are connected to telescopic rods on opposite sides, the free ends of the two telescopic rods are provided with sliders, a supporting belt is provided between the two sliders, the two sliders are respectively slid and clamped in the limiting grooves opened on both sides of the supporting belt, a supporting pad is provided at the bottom end of the supporting belt, a lifting assembly is provided on one side of the supporting pad, a connecting frame is provided on the outer side of the telescopic rod output rod, a distance cylinder is hinged at the top of the connecting frame, and the supporting belt contacts the side wall of the distance cylinder; the lifting assembly provided in the present invention can fix the patient's head to avoid the patient's movement during radiotherapy, which may cause additional damage to the patient caused by radiotherapy, and at the same time, the patient's neck height can be adjusted in conjunction with the lifting assembly, and the patient's head elevation angle can be maintained by adjusting the height difference between the patient's head and neck, thereby improving the radiotherapy effect.

Description

Technical Field

[0001] The present invention relates to the technical field of radiotherapy equipment, and more specifically, to an adjustable head and neck positioning frame for tumor radiotherapy. Background Art

[0002] Tumor radiotherapy is a local treatment method that uses radiation to treat tumors; radiation includes radiation produced by radioisotopes. 、 、 Rays and various Produced by radiation therapy machines or accelerators Rays, electron beams, proton beams and other particle beams, etc.; about 70% of cancer patients need radiotherapy during the treatment of cancer, and about 40% of cancers can be cured by radiotherapy.

[0003] However, most of the existing adjustable head and neck positioning frames for tumor radiotherapy are unable to adjust the patient's head elevation angle, and the radiation cannot irradiate the lesion at the optimal angle during radiotherapy, which not only prolongs the treatment cycle but also increases the damage caused by radiotherapy to the patient. Summary of the Invention

[0004] The present invention provides an adjustable head and neck positioning frame for tumor radiotherapy to solve the problem that most of the adjustable head and neck positioning frames for tumor radiotherapy in the prior art cannot adjust the patient's head elevation angle, and the radiation cannot irradiate the lesion at the optimal angle during radiotherapy, which prolongs the treatment cycle and increases the harm caused to the patient by radiotherapy.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A tumor radiotherapy adjustable head and neck positioning frame includes a base plate and a lifting assembly, the lifting assembly includes side frames symmetrically arranged on both sides of the base plate, two telescopic rods are connected to opposite sides of the two side frames, two telescopic rods are provided with sliders at the free ends, a support belt is provided between the two sliders, the two sliders are respectively slidably clamped in the limiting grooves opened on both sides of the support belt, a support pad is provided at the bottom end of the support belt, a lifting assembly is provided on one side of the support pad, a connecting frame is provided on the outside of the telescopic rod output rod, a distance cylinder is hinged at the top of the connecting frame, and the support belt contacts the side wall of the distance cylinder.

[0007] Preferably, one end of the base plate is connected to a bracket, and guide frames are provided on both sides of the bracket. A first clip and a second clip are provided on the guide frame, and the first clip and the second clip are staggered on both sides of the guide frame respectively, and the support belt is sandwiched between the first clip and the second clip.

[0008] Preferably, a winding assembly is provided at the free end of the support belt, and the winding assembly includes a motor provided at the top of the bracket, the output shaft end of the motor is coaxially connected to a first gear through a rotating shaft, and two reels are hinged at the top of the bracket, and one end of the two reels is coaxially connected to a second gear, and the first gear is engaged with the two second gears at the same time.

[0009] Preferably, both ends of the support belt are respectively wound around the outsides of the two reels, and the winding directions of the support belt along the outsides of the two reels are opposite.

[0010] Preferably, a through slot is provided at the bottom end of the bracket, a support rod is slidably provided at the top end of the through slot, the support rod is connected to one end of the through slot by a spring, a connecting seat is provided at the top end of the support rod, and a protective pad is rotatably connected to the connecting seat.

[0011] Preferably, the lifting assembly includes an air cushion arranged on the base plate, a positioning sleeve is provided on the top of the air cushion, and two base frames are provided for sliding inside the positioning sleeve. The two base frames are staggered, and one end of the base frame is connected to an arc-shaped plate. The two arc-shaped plates are connected by a folding pad, and elastic pads are provided at both ends of the folding pad. Connecting blocks are provided at both ends of the elastic pad, and two pairs of connecting blocks are respectively provided at both ends of the two arc-shaped plates.

[0012] Preferably, a lead screw is rotatably connected to the outside of any connecting block, the lead screw is passed through another connecting block located on the same side, and one end of the lead screw is coaxially connected to a knob.

[0013] Preferably, one end of the bottom plate away from the bracket is rotatably connected to a supporting plate, and one end of the supporting plate is in press contact with the outer side of the nearest arc-shaped plate.

[0014] Preferably, a pair of connecting buttons are symmetrically arranged on the bottom plate, a screw is hinged on each of the connecting buttons, a sliding sleeve is arranged on the outside of the screw, a fixing plate is arranged on the top of the sliding sleeve, and hooks are arranged on opposite sides of the two fixing plates.

[0015] Preferably, a pair of guide grooves are provided on the outside of the two screws, and the sleeve is slidably clamped on the outside of the screw through the guide grooves. The bottom end of the screw is threaded with a rotating sleeve, and the top surface of the rotating sleeve contacts the bottom surface of the sleeve.

[0016] The principle and beneficial effects of this technical solution:

[0017] (1) The lifting assembly provided in the present invention can fix the patient's head to prevent the patient from moving during radiotherapy, which may cause additional damage to the patient. When the patient's head needs to be fixed, the telescopic rod is first adjusted according to the width of the patient's head, so that the slider provided at the free end of the telescopic rod will also move synchronously, so that the horizontal span of the support belt clamped between the two sliders is increased, and then the length of the support belt between the two sliders is adjusted according to the overall size of the patient's head until the length of the support belt between the two sliders is sufficient to stably support the patient's head. At this time, the length of the support rod is first adjusted, and then the angle of the pad is adjusted along the connecting seat so that the pad is squeezed and contacted with the patient's head. At this time, the spring provided between the support rod and one end of the through slot will cause the pad to squeeze the patient's head, preventing the patient's head from moving in a direction perpendicular to the support belt.

[0018] (2) The lifting assembly provided in the present invention can lift the patient's neck and help the patient maintain different head elevation angles. First, the distance between the two arc plates is adjusted according to the length of the patient's neck, and the knob is turned until the two arc plates are moved to the patient's shoulder-neck connection and head-neck connection respectively. Since the base frames connected to the inner sides of the two arc plates are staggered and slidably clamped in the positioning sleeves at the same time, when the two arc plates move into place, the air cushion is inflated and deflated to adjust the support height of the arc plates, and finally the height difference between the patient's head and neck is adjusted to achieve the adjustment of the patient's head elevation angle.

[0019] (3) The hook provided in the present invention can hook the mask to help the patient's lower jaw remain closed. After the adjustment of the patient's neck support height is completed, the rotating sleeve is rotated according to the current position of the patient's lower jaw, so that the rotating sleeve moves along the axis of the screw while the sliding sleeve slides along the axis of the screw until the hook connected to the fixed plate at the top of the sliding sleeve is basically flush with the patient's lower jaw. At this time, the mask is clamped between the two hooks, and the two screws are rotated to cover and squeeze the patient's lower jaw. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure after disassembly of the present invention;

[0022] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0023] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0024] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of the middle C region;

[0025] The reference numerals in the drawings of the specification include: 1. side frame; 2. bottom plate; 3. support belt; 4. limiting groove; 5. support pad; 6. first gear; 7. rotating shaft; 8. motor; 9. second gear; 10. reel; 11. first clamp; 12. second clamp; 13. guide frame; 14. bracket; 15. elastic pad; 16. lead screw; 17. knob; 18. bottom frame; 19. arc plate; 20. support plate; 21. folding pad; 22. positioning sleeve; 23. connecting block; 24. air cushion; 25. distance cylinder; 26. connecting frame; 27. telescopic rod; 28. slider; 29. fixing plate; 30. pad; 31. connecting seat; 32. support rod; 33. spring; 34. hook; 35. screw; 36. sliding sleeve; 37. connecting button; 38. through groove; 39. guide groove; 40. rotating sleeve. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Example

[0027] like Figures 1 to 5 As shown, the present invention provides an adjustable head and neck positioning frame for tumor radiotherapy, including a base plate 2 and a lifting assembly. The lifting assembly includes side frames 1 symmetrically arranged on both sides of the base plate 2, and the opposite sides of the two side frames 1 are connected to telescopic rods 27. The free ends of the two telescopic rods 27 are provided with sliders 28, and a support belt 3 is provided between the two sliders 28. The two sliders 28 are respectively slidably clamped in the limiting grooves 4 opened on both sides of the support belt 3, a support pad 5 is provided at the bottom end of the support belt 3, and a lifting assembly is provided on one side of the support pad 5. A connecting frame 26 is provided on the outer side of the output rod of the telescopic rod 27, and a distance cylinder 25 is hinged at the top of the connecting frame 26, and the support belt 3 is in contact with the side wall of the distance cylinder 25.

[0028] like Figure 1 and Figure 2 As shown, one end of the base plate 2 is connected to a bracket 14, and guide frames 13 are provided on both sides of the bracket 14. The guide frames 13 are provided with a first clip 11 and a second clip 12. The first clip 11 and the second clip 12 are staggered and arranged on both sides of the guide frame 13, and a support belt 3 is sandwiched between the first clip 11 and the second clip 12.

[0029] like Figure 1 and Figure 2 As shown, a winding assembly is provided at the free end of the support belt 3, and the winding assembly includes a motor 8 arranged at the top of the bracket 14. The output shaft end of the motor 8 is coaxially connected to the first gear 6 through the rotating shaft 7. Two reels 10 are hinged at the top of the bracket 14, and one end of the two reels 10 is coaxially connected to the second gear 9. The first gear 6 is engaged with the two second gears 9 at the same time.

[0030] like Figure 2As shown, both ends of the support belt 3 are respectively wound around the outside of the two reels 10 , and the winding directions of the support belt 3 along the outside of the two reels 10 are opposite.

[0031] like Figure 2 、 Figure 4 and Figure 5 As shown, a through slot 38 is provided at the bottom end of the bracket 14, and a support rod 32 is slidably provided at the top end of the through slot 38. The support rod 32 is connected to one end of the through slot 38 by a spring 33. A connecting seat 31 is provided at the top end of the support rod 32, and a protective pad 30 is rotatably connected to the connecting seat 31.

[0032] like Figure 3 As shown, the lifting assembly includes an air cushion 24 arranged on the base plate 2, a positioning sleeve 22 is provided at the top of the air cushion 24, and two base frames 18 are provided in the sliding card inside the positioning sleeve 22. The two base frames 18 are staggered. One end of the base frame 18 is connected to an arc-shaped plate 19. The two arc-shaped plates 19 are connected by a folding pad 21. Elastic pads 15 are provided at both ends of the folding pad 21. Connecting blocks 23 are provided at both ends of the elastic pad 15. Two pairs of connecting blocks 23 are respectively provided at the two ends of the two arc-shaped plates 19.

[0033] like Figure 3 As shown, a screw 16 is rotatably connected to the outside of any connecting block 23 , and the screw 16 is passed through the other connecting block 23 on the same side. One end of the screw 16 is coaxially connected to a knob 17 .

[0034] like Figures 1 to 3 As shown, one end of the bottom plate 2 away from the bracket 14 is rotatably connected to the supporting plate 20, and one end of the supporting plate 20 is in press contact with the outer side of the nearest arc-shaped plate 19.

[0035] The lifting assembly can lift the patient's neck and help the patient maintain different head elevation angles. First, adjust the distance between the two curved plates 19 according to the patient's neck length, turn the knob 17, and the screw 16 coaxially connected to the knob 17 will drive the connecting block 23 to move, so that the two connecting blocks 23 on the same side drive the curved plate 19 to move along the axis of the screw 16 until the two curved plates 19 move to the patient's shoulder and neck connection and head and neck connection respectively. Since the base frames 18 connected to the inner sides of the two curved plates 19 are staggered and slidably clamped in the positioning sleeve 22 at the same time, when the two curved plates 19 move into place, the air cushion 24 can be inflated and deflated to adjust the support height of the curved plate 19, and finally the height difference between the patient's head and neck is adjusted to achieve the adjustment of the patient's head elevation angle.

[0036] like Figure 1 、 Figure 4 and Figure 5As shown, a pair of connecting buttons 37 are symmetrically provided on the base plate 2, and a screw rod 35 is hinged on each connecting button 37. A sliding sleeve 36 is provided on the outer side of the screw rod 35, and a fixing plate 29 is provided on the top of the sliding sleeve 36. A hook 34 is provided on the opposite sides of the two fixing plates 29.

[0037] like Figure 5 As shown, a pair of guide grooves 39 are provided on the outside of the two screw rods 35 , and the sliding sleeve 36 is slidably clamped on the outside of the screw rod 35 through the guide grooves 39 . The bottom end of the screw rod 35 is threaded with a rotating sleeve 40 , and the top surface of the rotating sleeve 40 contacts the bottom surface of the sliding sleeve 36 .

[0038] The hook 34 can hook the mask to help the patient's lower jaw remain closed. After completing the adjustment of the patient's neck support height, the rotating sleeve is rotated according to the current position of the patient's lower jaw, so that the rotating sleeve moves along the axis of the screw 35 while the sliding sleeve 36 slides along the axis of the screw 35 until the hook 34 connected to the fixing plate 29 at the top of the sliding sleeve 36 is basically flush with the patient's lower jaw. At this time, the mask is clamped between the two hooks 34, and the two screws 35 are rotated to cover and squeeze the patient's lower jaw.

[0039] The specific usage and function of this embodiment are as follows:

[0040] The lifting assembly provided in the present invention can fix the patient's head to prevent the patient from moving during radiotherapy and causing additional damage to the patient. When the patient's head needs to be fixed, the telescopic rod 27 is first adjusted according to the width of the patient's head, so that the telescopic rod 27 is telescoped and the slider 28 provided at the free end of the telescopic rod 27 will also move synchronously, so that the horizontal span of the support belt 3 clamped between the two sliders 28 is increased, and then the length of the support belt 3 between the two sliders 28 is adjusted according to the overall size of the patient's head, and the driving motor 8 rotates. The first gear 6 coaxially connected to the output shaft end of the motor 8 through the rotating shaft 7 will drive the second gear 9 coaxially connected to one end of the two reels 10 to rotate, so that the two reels 10 can simultaneously support the support belt 3. The two ends of the belt 3 are wound. Since the first clip 11 and the second clip 12 fixed by the guide frame 13 on both sides of the bracket 14 are respectively clamped on both sides of the support belt 3, the support belt 3 will move along the first clip 11 and the second clip 12 at this time, and at the same time slide along the outside of the spacing cylinder 25 hinged at the top of the connecting frame 26 until the length of the support belt 3 between the two sliders 28 is sufficient to stably support the patient's head. At this time, first adjust the length of the support rod 32, and then adjust the angle of the pad 30 along the connecting seat 31 so that the pad 30 is squeezed and contacted with the patient's head. At this time, the spring 33 arranged between the support rod 32 and one end of the through slot 38 will cause the pad 30 to squeeze the patient's head to prevent the patient's head from displacing in a direction perpendicular to the support belt 3.

[0041] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. An adjustable head and neck positioning frame for tumor radiotherapy, characterized by: It comprises a base plate (2) and a lifting assembly, wherein the lifting assembly comprises side frames (1) symmetrically arranged on both sides of the base plate (2), two telescopic rods (27) are connected to opposite sides of the two side frames (1), free ends of the two telescopic rods (27) are provided with sliders (28), a support belt (3) is provided between the two sliders (28), the two sliders (28) are respectively slidably clamped in the limiting grooves (4) opened on both sides of the support belt (3), a support pad (5) is provided at the bottom end of the support belt (3), a lifting assembly is provided on one side of the support pad (5), a connecting frame (26) is provided on the outer side of the output rod of the telescopic rod (27), a distance cylinder (25) is hinged at the top end of the connecting frame (26), and the support belt (3) contacts the side wall of the distance cylinder (25); One end of the bottom plate (2) is connected to a bracket (14), and guide frames (13) are provided on both sides of the bracket (14). A first clip (11) and a second clip (12) are provided on the guide frame (13), and the first clip (11) and the second clip (12) are staggered and arranged on both sides of the guide frame (13), respectively, and the support belt (3) is sandwiched between the first clip (11) and the second clip (12); The free end of the support belt (3) is provided with a winding assembly, and the winding assembly includes a motor (8) provided at the top of the bracket (14), the output shaft end of the motor (8) is coaxially connected to a first gear (6) through a rotating shaft (7), and the top of the bracket (14) is hinged with two reels (10), one end of each of the two reels (10) is coaxially connected to a second gear (9), and the first gear (6) is simultaneously engaged with the two second gears (9); The two ends of the support belt (3) are respectively wound around the outside of the two reels (10), and the winding directions of the support belt (3) along the outside of the two reels (10) are opposite; A through slot (38) is provided at the bottom end of the bracket (14), a support rod (32) is slidably mounted at the top end of the through slot (38), the support rod (32) is connected to one end of the through slot (38) via a spring (33), a connecting seat (31) is provided at the top end of the support rod (32), and a protective pad (30) is rotatably connected to the connecting seat (31).

2. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 1, characterized in that: The lifting assembly includes an air cushion (24) arranged on the base plate (2), a positioning sleeve (22) is arranged at the top of the air cushion (24), and two base frames (18) are provided in the sliding card inside the positioning sleeve (22). The two base frames (18) are arranged alternately, and one end of the base frame (18) is connected to an arc plate (19). The two arc plates (19) are connected by a folding pad (21), and elastic pads (15) are provided at both ends of the folding pad (21). Connecting blocks (23) are provided at both ends of the elastic pad (15), and two pairs of connecting blocks (23) are respectively provided at both ends of the two arc plates (19).

3. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 2, characterized in that: A lead screw (16) is rotatably connected to the outside of any connecting block (23), and the lead screw (16) is passed through another connecting block (23) located on the same side. One end of the lead screw (16) is coaxially connected to a knob (17).

4. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 3, characterized in that: One end of the bottom plate (2) away from the bracket (14) is rotatably connected to a supporting plate (20), and one end of the supporting plate (20) is in extrusion contact with the outer side of the nearest arc-shaped plate (19).

5. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 4, characterized in that: A pair of connecting buttons (37) are symmetrically arranged on the bottom plate (2), and a screw rod (35) is hinged on each of the two connecting buttons (37). A sliding sleeve (36) is arranged on the outside of the screw rod (35), and a fixing plate (29) is arranged on the top of the sliding sleeve (36). A hook (34) is arranged on the opposite side of the two fixing plates (29).

6. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 5, characterized in that: A pair of guide grooves (39) are provided on the outside of the two screw rods (35), and the sliding sleeve (36) is slidably clamped on the outside of the screw rod (35) through the guide grooves (39). A rotating sleeve (40) is screwed to the bottom end of the screw rod (35), and the top surface of the rotating sleeve (40) contacts the bottom surface of the sliding sleeve (36).

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