Adjustable head and neck positioning frame for tumor radiotherapy

Abstract

A tumor radiotherapy adjustable head and neck positioning frame disclosed by the present invention comprises a bottom plate and a lifting assembly, the lifting assembly comprises side frames symmetrically arranged at the two sides of the bottom plate, the opposite sides of the two side frames are connected with telescopic rods, the free ends of the two telescopic rods are provided with sliding blocks, a supporting belt is arranged between the two sliding blocks, and the supporting belt is connected with the bottom plate through a connecting rod. The two sliding blocks are slidably clamped in limiting grooves formed in the two sides of a supporting belt correspondingly, a supporting pad is arranged at the bottom end of the supporting belt, a lifting assembly is arranged on one side of the supporting pad, a connecting frame is arranged on the outer side of an output rod of the telescopic rod, a distance cylinder is hinged to the top end of the connecting frame, and the supporting belt makes contact with the side wall of the distance cylinder. The head of a patient can be fixed through the lifting assembly, extra damage to the patient caused by radiotherapy due to movement of the patient in the radiotherapy process is avoided, meanwhile, the height of the neck of the patient can be adjusted in cooperation with the lifting assembly, the elevation angle of the head of the patient is kept by adjusting the height difference between the head and the neck of the patient, and then the radiotherapy effect is improved.

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 α, β, γ rays produced by radioactive isotopes and x-rays, electron beams, proton beams and other particle beams produced by various x-ray therapy machines or accelerators; about 70% of cancer patients need radiotherapy during the treatment of cancer, and about 40% of cancers can be cured with radiotherapy.

[0003] However, most of the existing adjustable head and neck positioning frames for tumor radiotherapy 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 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 elevation angle of the patient's head, and the rays cannot irradiate the lesion at the optimal angle during radiotherapy, which prolongs the treatment cycle and increases the harm caused by radiotherapy to the patient.

[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, comprising a base plate and a lifting assembly, the lifting assembly comprising side frames symmetrically arranged on both sides of the base plate, two side frames are connected to opposite sides of telescopic rods, two telescopic rods are provided with sliders at free ends, a support belt is provided between the two sliders, the two sliders are respectively slidably clamped in limit 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 outer side of the telescopic rod output rod, a distance cylinder is hinged on 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, guide frames are provided on both sides of the bracket, a first clip and a second clip are provided on the guide frame, the first clip and the second clip are respectively staggered on both sides of the guide frame, and the support belt is sandwiched between the first clip and the second clip.

[0008] Preferably, a winding component is provided at the free end of the supporting belt. The winding component includes a motor provided at the top end of the bracket. The output shaft end of the motor is coaxially connected with a first gear through a rotating shaft. Two winding drums are hinged at the top end of the bracket. A second gear is coaxially connected to one end of each of the two winding drums. The first gear meshes with the two second gears simultaneously.

[0009] Preferably, both ends of the supporting belt are respectively wound around the outer sides of the two winding drums, and the winding directions of the supporting belt along the outer sides of the two winding drums are opposite.

[0010] Preferably, a through groove is formed at the bottom end of the bracket. A support rod is slidably clamped at the top end of the through groove. The support rod is connected with one end of the through groove through a spring. A connecting seat is provided at the top end of the support rod. A cushion pad is rotatably connected to the connecting seat.

[0011] Preferably, the lifting component includes an air cushion provided on the bottom plate. A positioning sleeve is provided at the top end of the air cushion. Two chassis are slidably clamped in the positioning sleeve. The two chassis are arranged staggeredly. One end of the chassis is connected with an arc-shaped plate. The two arc-shaped plates are connected through a folding pad. Elastic bands are provided at both ends of the folding pad. Connecting blocks are provided at both ends of the elastic pad. The 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 one of the connecting blocks. The lead screw penetrates through the other connecting block located on the same side. A knob is coaxially connected to one end of the lead screw.

[0013] Preferably, a support plate is rotatably connected to one end of the bottom plate away from the bracket. One end of the support plate is in pressing contact with the outer side of the arc-shaped plate closest to it.

[0014] Preferably, a pair of connecting buttons are symmetrically provided on the bottom plate. A screw rod is hinged to each of the two connecting buttons. A sliding sleeve is provided on the outer side of the screw rod. A fixing plate is provided at the top end of the sliding sleeve. Hooks are provided on the opposite sides of the two fixing plates.

[0015] Preferably, a pair of guide grooves are formed on the outer sides of the two screw rods. The sliding sleeve is slidably clamped on the outer side of the screw rod through the guide grooves. A rotating sleeve is screwed at the bottom end of the screw rod. The top surface of the rotating sleeve is in contact with the bottom surface of the sliding sleeve.

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

[0017] (1) The lifting component provided in the present invention can fix the patient's head, avoiding additional harm caused by radiotherapy due to the patient's movement during radiotherapy. When it is necessary to fix the patient's head, first adjust the telescopic rod according to the width of the patient's head. As the telescopic rod expands and contracts, the slider provided at the free end of the telescopic rod will also move synchronously, increasing the span of the support belt clamped between the two sliders in the horizontal direction. Then, adjust the length of the support belt between the two sliders 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 lift the patient's head. At this time, first adjust the length of the support rod, and then adjust the angle of the cushion along the connecting seat so that the cushion is in extrusion contact with the patient's head. At this time, the spring provided between the support rod and one end of the through groove will cause the cushion to squeeze the patient's head, avoiding the displacement of the patient's head in the direction perpendicular to the support belt.

[0018] (2) The lifting component provided in the present invention can lift the patient's neck to help the patient maintain different head elevation angles. First, adjust the distance between the two arc-shaped plates according to the patient's neck length, and rotate the knob until the two arc-shaped plates move to the shoulder-neck connection and the head-neck connection of the patient respectively. Since the bottom frames connected to the inner sides of the two arc-shaped plates are staggered and simultaneously slide and are clamped in the positioning sleeve, after the two arc-shaped plates move into place, inflate and deflate the air cushion to adjust the support height of the arc-shaped plates, and finally adjust the height difference between the patient's head and neck 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 completing the adjustment of the support height of the patient's neck, rotate the rotating sleeve according to the position of the patient's current lower jaw, so that the sliding sleeve slides along the axis of the screw while the rotating sleeve moves along the axis of the screw until the hook connected to the top of the sliding sleeve through the fixing plate is basically flush with the patient's lower jaw. At this time, hook the mask between the two hooks and rotate the two screws to make the mask cover and squeeze the patient's lower jaw. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the structural schematic diagram after splitting the present invention;

[0022] Figure 3 is Figure 2 the enlarged structural schematic diagram of area A in

[0023] Figure 4 is Figure 2 the enlarged structural schematic diagram of area B in

[0024] Figure 5 is Figure 2 the enlarged structural schematic diagram of area C in

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

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and implementation manners:

[0027] Embodiment:

[0028] As Figures 1 to 5 shown, the present invention provides a tumor radiotherapy adjustable head and neck positioning frame, including a bottom plate 2 and a lifting assembly. The lifting assembly includes side frames 1 symmetrically arranged on both sides of the bottom plate 2. Telescopic rods 27 are connected to the opposite sides of the two side frames 1. Sliders 28 are arranged at the free ends of the two telescopic rods 27. A supporting belt 3 is arranged between the two sliders 28. The two sliders 28 are respectively slidably clamped in the limiting grooves 4 opened on both sides of the supporting belt 3. A supporting pad 5 is arranged at the bottom end of the supporting belt 3. A lifting assembly is arranged on one side of the supporting pad 5. A connecting frame 26 is arranged on the outer side of the output rod of the telescopic rod 27. A distance-setting cylinder 25 is hinged to the top end of the connecting frame 26. The supporting belt 3 contacts the side wall of the distance-setting cylinder 25.

[0029] As Figure 1 and Figure 2 shown, one end of the bottom plate 2 is connected to a bracket 14. Guiding frames 13 are arranged on both sides of the bracket 14. A first clamp 11 and a second clamp 12 are arranged on the guiding frames 13. The first clamp 11 and the second clamp 12 are respectively arranged on both sides of the guiding frame 13 in a staggered manner. The supporting belt 3 is clamped between the first clamp 11 and the second clamp 12.

[0030] As Figure 1 and Figure 2 shown, a winding assembly is arranged at the free end of the supporting belt 3. The winding assembly includes a motor 8 arranged at the top end of the bracket 14. A first gear 6 is coaxially connected to the output shaft end of the motor 8 through a rotating shaft 7. Two winding drums 10 are hinged to the top end of the bracket 14. Second gears 9 are coaxially connected to one end of the two winding drums 10. The first gear 6 meshes with the two second gears 9 simultaneously.

[0031] As Figure 2As shown, both ends of the supporting belt 3 are respectively wound around the outer sides of two drums 10, and the winding directions of the supporting belt 3 along the outer sides of the two drums 10 are opposite.

[0032] As Figure 2 , Figure 4 and Figure 5 As shown, a through groove 38 is provided at the bottom end of the support 14, a support rod 32 is slidably clamped at the top end of the through groove 38, the support rod 32 is connected to one end of the through groove 38 by a spring 33, a connecting seat 31 is provided at the top end of the support rod 32, and a cushion pad 30 is rotatably connected to the connecting seat 31.

[0033] As Figure 3 As shown, the lifting assembly includes an air cushion 24 provided on the bottom plate 2, a positioning sleeve 22 is provided at the top end of the air cushion 24, two chassis 18 are slidably clamped in the positioning sleeve 22, the two chassis 18 are arranged staggeredly, one end of the chassis 18 is connected with an arc plate 19, the two arc plates 19 are connected by a folding pad 21, elastic bands 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 the two pairs of connecting blocks 23 are respectively arranged at both ends of the two arc plates 19.

[0034] As Figure 3 As shown, a lead screw 16 is rotatably connected to the outside of any connecting block 23, the lead screw 16 passes through the other connecting block 23 on the same side, and one end of the lead screw 16 is coaxially connected with a knob 17.

[0035] As Figures 1 to 3 As shown, one end of the bottom plate 2 away from the support 14 is rotatably connected with a support plate 20, and one end of the support plate 20 is in pressing contact with the outside of the arc plate 19 closest to it.

[0036] 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 arc plates 19 according to the patient's neck length. Rotate the knob 17, and the lead 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 arc plates 19 to move along the axis of the lead screw 16 until the two arc plates 19 respectively move to the shoulder-neck connection and the head-neck connection of the patient. Since the chassis 18 connected to the inner sides of the two arc plates 19 are arranged staggeredly and are simultaneously slidably clamped in the positioning sleeve 22, after the two arc plates 19 move in place, the air cushion 24 can be inflated and deflated to adjust the support height of the arc plates 19, and finally adjust the height difference between the patient's head and neck to realize the adjustment of the patient's head elevation angle.

[0037] As Figure 1 , Figure 4 and Figure 5As shown, a pair of connection buttons 37 are symmetrically arranged on the bottom plate 2. A screw rod 35 is hinged on each of the two connection buttons 37. A sliding sleeve 36 is arranged outside the screw rod 35. A fixing plate 29 is arranged at the top end of the sliding sleeve 36. Hook 34 is arranged on the opposite sides of the two fixing plates 29.

[0038] As Figure 5 shown, a pair of guide grooves 39 are opened on the outside of each of the two screw rods 35. The sliding sleeve 36 is slidably clamped outside the screw rod 35 through the guide grooves 39. A rotating sleeve 40 is screwed at the bottom end of the screw rod 35. The top surface of the rotating sleeve 40 contacts the bottom surface of the sliding sleeve 36.

[0039] The hook 34 can hook the mask to help the patient's mandible maintain a closed state. After adjusting the support height of the patient's neck, rotate the rotating sleeve according to the position of the patient's current mandible, so that while the rotating sleeve moves along the axis of the screw rod 35, the sliding sleeve 36 slides along the axis of the screw rod 35 until the hook 34 connected to the top end of the sliding sleeve 36 through the fixing plate 29 is basically flush with the patient's mandible. At this time, the mask is clamped between the two hooks 34, and rotate the two screw rods 35 to make the mask cover and squeeze the patient's mandible.

[0040] Specific usage method and function of this embodiment:

[0041] The lifting component set in the present invention can fix the patient's head, avoiding additional damage to the patient caused by the patient's movement during radiotherapy. When it is necessary to fix the patient's head, first adjust the telescopic rod 27 according to the width of the patient's head. The slider 28 arranged at the free end of the telescopic rod 27 will also move synchronously, increasing the span of the support belt 3 clamped between the two sliders 28 in the horizontal direction. Then, adjust the length of the support belt 3 between the two sliders 28 according to the overall size of the patient's head. Drive the motor 8 to rotate. The first gear 6 coaxially connected to the output shaft end of the motor 8 will drive the second gear 9 coaxially connected to one end of the two winding drums 10 to rotate, so that the two winding drums 10 simultaneously wind the two ends of the support belt 3. Since the first clip 11 and the second clip 12 fixed to the two sides of the bracket 14 through the guide frames 13 are respectively clamped on the two 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 fixed-distance cylinder 25 hinged to the top end of the connecting frame 26 until the length of the support belt 3 between the two sliders 28 is sufficient to stably lift the patient's head. At this time, first adjust the length of the support rod 32, and then adjust the angle of the cushion 30 along the connecting seat 31 so that the cushion 30 is in pressing contact with the patient's head. At this time, the spring 33 arranged between the support rod 32 and one end of the through groove 38 will make the cushion 30 press the patient's head, avoiding the displacement of the patient's head in the direction perpendicular to the support belt 3.

[0042] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solutions are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. An adjustable head and neck positioning frame for tumor radiotherapy, characterized in that: The invention 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 arranged between the two sliders (28), the two sliders (28) are respectively slidably arranged in limit grooves (4) provided on both sides of the support belt (3), a support pad (5) is arranged at the bottom end of the support belt (3), a lifting assembly is arranged on one side of the support pad (5), a connecting frame (26) is arranged 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).

2. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 1, characterized in that: One end of the bottom plate (2) is connected to a bracket (14), and guide frames (13) are arranged on both sides of the bracket (14). A first clip (11) and a second clip (12) are arranged on the guide frame (13), and the first clip (11) and the second clip (12) are respectively staggered on both sides of the guide frame (13), and the support belt (3) is sandwiched between the first clip (11) and the second clip (12).

3. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 2, characterized in that: 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), and the output shaft end of the motor (8) is coaxially connected to a first gear (6) through a rotating shaft (7), and two reels (10) are hinged at the top of the bracket (14), and one end of the two reels (10) is coaxially connected to a second gear (9), and the first gear (6) is simultaneously meshed with the two second gears (9).

4. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 3, characterized in that: 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.

5. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 4, characterized in that: 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).

6. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 5, characterized in that: The lifting assembly comprises an air cushion (24) arranged on the base plate (2), a positioning sleeve (22) being arranged at the top of the air cushion (24), two base frames (18) being slidingly arranged inside the positioning sleeve (22), the two base frames (18) being arranged alternately, one end of the base frame (18) being connected to an arc-shaped plate (19), the two arc-shaped plates (19) being connected via a folding pad (21), both ends of the folding pad (21) being provided with elastic bands (15), both ends of the elastic pad (15) being provided with connecting blocks (23), and two pairs of the connecting blocks (23) being respectively arranged at both ends of the two arc-shaped plates (19).

7. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 6, characterized in that: A lead screw (16) is rotatably connected to the outside of any connection block (23), the lead screw (16) is passed through another connection block (23) located on the same side, and one end of the lead screw (16) is coaxially connected to a knob (17).

8. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 7, characterized in that: One end of the bottom plate (2) away from the bracket (14) is rotatably connected to a support plate (20), and one end of the support plate (20) is in extrusion contact with the outer side of the nearest arc-shaped plate (19).

9. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 8, 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 outer side of the screw rod (35), and a fixing plate (29) is arranged on the top of the sliding sleeve (36). Hooks (34) are arranged on opposite sides of the two fixing plates (29).

10. The adjustable head and neck positioning frame for tumor radiotherapy according to claim 9, characterized in that: A pair of guide grooves (39) are provided on the outer sides of the two screw rods (35), and the sliding sleeve (36) is slidably clamped on the outer sides of the screw rods (35) through the guide grooves (39). A rotating sleeve (40) is threadedly connected 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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