CN109985317B - Head fixing device for tumor radiotherapy - Google Patents
Head fixing device for tumor radiotherapy Download PDFInfo
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- CN109985317B CN109985317B CN201910287903.5A CN201910287903A CN109985317B CN 109985317 B CN109985317 B CN 109985317B CN 201910287903 A CN201910287903 A CN 201910287903A CN 109985317 B CN109985317 B CN 109985317B
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 18
- 206010028980 Neoplasm Diseases 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 78
- 238000001125 extrusion Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 description 4
- 241001456553 Chanodichthys dabryi Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1092—Details
- A61N2005/1097—Means for immobilizing the patient
Abstract
The invention discloses a head fixing device for tumor radiotherapy, and effectively solves the problems that the height and the angle of the head fixing device cannot be adjusted according to the treatment requirement of a patient by using a conventional head fixing device for tumor radiotherapy, and the fixing device cannot be adjusted according to the shape and the size of the head of the patient. The comfort of the patient and the working efficiency of medical workers are improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a head fixing device for tumor radiotherapy.
Background
The tumor radiotherapy is a clinical subject generated by cross combination of oncology and radiology, most head and neck malignant tumors can effectively receive radiotherapy, but the position positioning requirement of the radiotherapy on the head and neck is higher, so the head of a patient needs to be fixed during radiotherapy.
The head fixing device for radiotherapy in the current market has a single function, and can not adjust the fixed angle and height according to the physical conditions of different patients, for example, when the patient needs different supine positions to treat or when the patient has humpback and spine problems, the height and angle of the head fixing position can not be adjusted according to the treatment requirement by the conventional head fixing device, and the head sizes and shapes of different patients are different, and the comfort of the patient is not considered by the conventional head fixing device.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention provides a head fixing device for tumor radiotherapy, which effectively solves the problems that the conventional head fixing device for radiotherapy cannot adjust the height and angle of the head fixing device according to the treatment requirements of a patient, and cannot adjust the fixing device according to the shape and size of the head of the patient.
In order to achieve the purpose, the invention provides the following technical scheme: the adjustable rotary table comprises a base, wherein a head fixing mechanism is arranged at the upper end of the base, a support frame is arranged at the lower end of the base, a rotary shaft is fixedly connected to the rear end of the support frame, an adjusting mechanism is arranged at the rear end of the rotary shaft, the adjusting mechanism can drive the rotary shaft to rotate around the axis of the rotary shaft, and the adjusting mechanism can also drive the rotary shaft to circularly swing;
the head fixing mechanism comprises a first clamping mechanism and a second clamping mechanism which are symmetrical to each other, the first clamping mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod and an arc-shaped guide rod, the upper end of the guide rod is hinged with the end parts of the first connecting rod and the second connecting rod through pin rods, the lower end of the guide rod is provided with an arc-shaped guide groove, a pin rod capable of sliding along the guide groove is arranged in the guide groove, the pin rod is hinged with the middle parts of the third connecting rod and the fourth connecting rod, the upper end of the third connecting rod is hinged with the lower end of the first connecting rod through the pin rods, the upper end of the fourth connecting rod is hinged with the lower end of the second connecting rod through the pin rods, and the lower end of the third connecting rod is hinged with the end part of the;
the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod and the fifth connecting rod are all arc-shaped structures, the second clamping mechanism and the first clamping mechanism are identical in structure, the joint of the first clamping mechanism and the second clamping mechanism is hinged through a pin rod, and the fifth connecting rod is rotated positively and negatively to form a structure for driving the head fixing mechanism to be opened and closed;
the end part of each pin rod is connected with a telescopic rod, the end part of each telescopic rod is provided with a spherical hinge joint, each spherical hinge joint is connected with a truncated cone-shaped extrusion block, the end surface with larger area of the extrusion block is embedded with a plurality of rotatable massage balls, and the massage balls can be made of rubber materials;
the adjusting mechanism comprises a fixed frame, a first double-face bevel gear is arranged on the right side of the fixed frame, a second bevel gear is meshed with the outer side tooth surface of the first double-face bevel gear, the rear end of the second bevel gear is connected with a first rotating disc through a first connecting shaft, a second double-face bevel gear is arranged on the left side of the fixed frame, a third bevel gear is meshed with the outer side tooth surface of the second double-face bevel gear, the rear end of the third bevel gear is connected with a second rotating disc through a second connecting shaft, the first rotating disc is rotated, the second bevel gear is matched with the first double-face bevel gear to form a bevel gear transmission structure, the second rotating disc is rotated, and the third bevel gear is matched with;
the left side of the second double-face bevel gear is rotatably connected with a U-shaped supporting rod, a rotating shaft rotatably penetrates through one end of the supporting rod, a first bevel gear is fixed to the rear end of the rotating shaft and is arranged between the first double-face bevel gear and the second double-face bevel gear, the first bevel gear is respectively meshed with tooth surfaces on the inner sides of the first double-face bevel gear and the second double-face bevel gear and rotates in the same direction, the first double-face bevel gear and the second double-face bevel gear rotate in the opposite direction to form a structure enabling the first bevel gear to rotate around the axis of the rotating shaft, the first rotary disc and the second rotary disc rotate in the opposite direction, and the first double-face bevel gear and the second double-face bevel gear rotate in the same direction to form a structure enabling the first bevel gear to rotate around the axis of the first double-face bevel gear and the second double.
Preferably, the telescopic link includes the cavity pipe, and the intraductal slide bar that can be intraductal upper and lower gliding at the cavity that is equipped with of cavity, fixedly connected with spring between the bottom of slide bar and cavity pipe, spherical hinge joint rotationally inlays and forms the articulated structure of ball in the upper end of slide bar.
Preferably, a rotating rod is fixed at the lower end of the middle part of the fifth connecting rod, the lower end of the rotating rod can rotatably penetrate through the base and is arranged at the lower end of the base, a first gear is arranged at the lower end of the rotating rod, and a second gear is meshed with the rear end of the first gear;
the rear end of the base is provided with two sliding grooves in the front-back direction, a push-pull rod capable of sliding back and forth in the sliding grooves is arranged in each sliding groove, the front end of each push-pull rod is connected with the sliding grooves on the same side through a tension spring, the rear ends of the two push-pull rods are connected with arc-shaped limiting tooth blocks, and the limiting tooth blocks are meshed with the second gear to form a locking structure.
Preferably, the ratio of the total amount of the components is set to be zero.
Preferably, the rear ends of the first turntable and the second turntable are provided with a detachable U-shaped limiting rod, and the periphery of the limiting rod is uniformly provided with a plurality of convex strips;
the center of first carousel and second carousel is equipped with a spacing groove respectively, the inner wall of every spacing groove be equipped with can with the recess of sand grip block, the gag lever post constitutes the spacing structure of locking with the spacing groove cooperation.
Compared with the prior art, the invention has the beneficial effects that:
1. the fifth connecting rod can be rotated according to the shape and the size of the head of the patient to adjust the opening size of the head fixing mechanism to a proper degree, so that medical workers are helped to better fix the head of the patient.
2. The extrusion block also changes in spatial position along with the change in pin position, and the extrusion block is always attached to and fixed with the head of a patient, so that the fixation of the head of the patient is guaranteed, and the comfort level of the patient is also guaranteed.
3. The height and the angle of the head fixing mechanism on the base can be adjusted through the adjusting mechanism, and medical workers can be helped to deal with more complex conditions.
4. The invention is convenient to use and improves the working efficiency of medical workers.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the head fixing mechanism of the present invention.
Fig. 3 is an exploded view of the head fixing mechanism according to the present invention.
Fig. 4 is a schematic structural diagram of the adjusting mechanism of the present invention.
FIG. 5 is a schematic view of a base structure according to the present invention.
FIG. 6 is a schematic view of the structure of the expansion link and the extrusion block of the present invention.
Fig. 7 is a schematic sectional view of the telescopic rod of the present invention.
FIG. 8 is a schematic view of a tooth stop according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings 1 to 8.
In the first embodiment, as shown in fig. 1, the present invention includes a base 2, a head fixing mechanism 1 is disposed at an upper end of the base 2, the head fixing mechanism 1 is used for fixing the head of a patient, so as to prevent the head from shifting during long-time treatment and affect the treatment effect, a support frame 3 is disposed at a lower end of the base 2, the support frame 3 is used for supporting the base 2 and the head fixing mechanism 1, a rotation shaft 4 is fixedly connected to a rear end of the support frame 3, an adjusting mechanism 5 is disposed at a rear end of the rotation shaft 4, the adjusting mechanism 5 can drive the rotation shaft 4 to rotate around an axis of the rotation shaft 4, the adjusting mechanism 5 can also drive the rotation shaft 4 to circularly swing, and the height and the angle of the head fixing mechanism 1.
In the second embodiment, based on the first embodiment, as shown in fig. 1, 2, 3 and 6, in order to fix the heads of different patients and open and close the head fixing mechanism 1, the head fixing mechanism 1 includes a first clamping mechanism 18 and a second clamping mechanism 19 which are symmetrical to each other, the first clamping mechanism 18 includes a first connecting rod 6, a second connecting rod 7, a third connecting rod 8, a fourth connecting rod 9, a fifth connecting rod 10 and an arc-shaped guide rod 42, the upper end of the guide rod 42 is hinged to the end portions of the first connecting rod 6 and the second connecting rod 7 by a pin rod 33, the lower end of the guide rod 42 is provided with an arc-shaped guide groove 11, the guide groove 11 is internally provided with a pin rod 33 which can slide along the guide groove 11, the pin rod 33 is hinged to the middle portions of the third connecting rod 8 and the fourth connecting rod 9, the upper end of the third connecting rod 8 is hinged to the lower end of the first connecting rod 6 by a pin rod 33, the upper end of the fourth connecting rod 9 is hinged with the lower end of the second connecting rod 7 through a pin rod 33, and the lower end of the third connecting rod 8 is hinged with the end part of the fifth connecting rod 10 through the pin rod 33;
in order to realize that the head fixing mechanism 1 surrounds and fixes the head of a patient in space, as shown in fig. 1, the first connecting rod 6, the second connecting rod 7, the third connecting rod 8, the fourth connecting rod and the fifth connecting rod 10 are all arc-shaped structures, the second clamping mechanism 19 is the same as the first clamping mechanism 18 in structure, the joint of the first clamping mechanism 18 and the second clamping mechanism 19 is hinged by a pin 33, the fifth connecting rod 10 is rotated positively and negatively to form a structure for driving the head fixing mechanism 1 to open and close, the fifth connecting rod 10 is rotated clockwise at an angle of a top view, the connecting rods on the first clamping mechanism 18 and the second clamping mechanism 19 sequentially act to realize the closing of the head fixing mechanism 1, the fifth connecting rod 10 is rotated counterclockwise at an angle of the top view, the connecting rods on the first clamping mechanism 18 and the second clamping mechanism 19 sequentially act to realize the opening of the head fixing mechanism 1, when in specific use, the fifth connecting rod 10 can be rotated according to the condition of a patient to adjust the opening size of the head fixing mechanism 1 to a proper degree;
the end part of each pin rod 33 is connected with an expansion rod 34, the end part of each expansion rod 34 is provided with a spherical hinge joint 35, each spherical hinge joint 35 is connected with a truncated cone-shaped extrusion block 36 which can be made of plastic materials, the end surface of the extrusion block 36 with larger area is inlaid with a plurality of rotatable massage balls 37, the massage balls 37 can be made of rubber materials with larger hardness, the head of a patient is placed in the head fixing mechanism 1 and is contacted with the corresponding extrusion block 36, then the head fixing mechanism 1 is adjusted according to the condition of the patient, in the process that the head fixing mechanism 1 is gradually closed, each extrusion block 36 also generates the change of the spatial position along with the change of the position of the pin rod 33, the position of the extrusion block 36 is changed, the massage balls 37 on the extrusion block 36 roll on the head of the patient, and the friction damage of the extrusion block 36 to the head of the patient is avoided, meanwhile, because the squeezing block 36 is in ball joint with the telescopic rod, the squeezing block 36 still keeps fit with the head of the patient despite the change of the position and the angle of the squeezing block 36.
Third embodiment, on the basis of the second embodiment, as shown in fig. 6 and 7, in order to realize the extrusion fixation of the extrusion block 36 to the head of the patient, the expansion link 34 includes a cavity tube 39, a sliding rod 38 capable of sliding up and down in the cavity tube 39 is arranged in the cavity tube 39, a spring 40 is fixedly connected between the sliding rod 38 and the bottom end of the cavity tube 39, the spherical hinge 35 is rotatably embedded at the upper end of the sliding rod 38 to form a ball hinge structure, and because the spring 40 is arranged in the expansion link 34, a reaction force is applied to the head of the patient after the extrusion block 36 is extruded, so that the extrusion fixation to the head of the patient is realized.
Fourth embodiment, on the basis of the first and second embodiments, as shown in fig. 1, 2 and 5, in order to limit the head fixing mechanism 1, a rotating rod 12 is fixed at a lower end of a middle portion of the fifth connecting rod 10, the lower end of the rotating rod 12 rotatably penetrates through the base 2 and is disposed at the lower end of the base 2, the rotating rod 12 is respectively provided with a limiting block on the base 2 and under the base 2, the limiting block can limit the rotating rod 12 to slide up and down, the limiting block is not shown in the drawing, the lower end of the rotating rod 12 is provided with a first gear 13, a rear end of the first gear 13 is engaged with a second gear 14, a portion of the second gear 14 is exposed outside the base 2, the second gear 14 is manually shifted to drive the first gear 13 to rotate, the rotating rod 12 is driven to rotate while the first gear 13 rotates, because the rotating rod 12 is fixedly connected to the fifth connecting rod 10, therefore, the rotation of the second gear 14 can control the rotation of the fifth connecting rod 10, so that the opening and closing of the head fixing mechanism 1 can be adjusted;
in order to realize locking and fixing of the second gear 14, the rear end of the base 2 is provided with two sliding grooves 32 in the front-back direction, each sliding groove 32 is internally provided with a push-pull rod 16 capable of sliding back and forth in the sliding groove 32, the front end of each push-pull rod 16 is connected with the sliding groove 32 on the same side through a tension spring 15, the rear ends of the two push-pull rods 16 are connected with arc-shaped limiting toothed blocks 17, the push-pull rod 16 is pulled forward through the pulling force of the tension spring 15 to enable the limiting toothed blocks 17 to be in pressing contact with the second gear 14, the limiting toothed blocks 17 are meshed with the second gear 14 to form a locking structure, and when the head fixing mechanism 1 needs to be adjusted, the limiting toothed blocks 17 are pulled backward only to enable the limiting toothed blocks 17 to be separated from the second gear.
Fifth embodiment, on the basis of the first embodiment, as shown in fig. 1 and 4, in order to achieve multi-angle adjustment of the head fixing mechanism 1 according to the requirements of different patients, the adjusting mechanism 5 includes a fixing frame 43, a first double-sided bevel gear 22 is disposed on the right side of the fixing frame 43, a second bevel gear 23 is engaged with the outer side tooth surface of the first double-sided bevel gear 22, a first rotating disc 25 is connected to the rear end of the second bevel gear 23 through a first connecting shaft, rotation of the second bevel gear 23 is achieved by rotating the first rotating disc 25, a second double-sided bevel gear 21 is disposed on the left side of the fixing frame 43, a third bevel gear 30 is engaged with the outer side tooth surface of the second double-sided bevel gear 21, a second rotating disc 28 is connected to the rear end of the third bevel gear 30 through a second connecting shaft, rotation of the third bevel gear 30 is achieved by rotating the second rotating disc 28, the first rotating disc 25 is rotated, the second bevel gear 23 and the first double-sided bevel gear 22 form a bevel gear, when the second turntable 28 is rotated, the third bevel gear 30 is matched with the second double-sided bevel gear 21 to form a bevel gear transmission structure;
a U-shaped support rod 31 is rotatably connected to the left side of the second double-sided bevel gear 21, the rotating shaft 4 rotatably penetrates through the support rod 31, a first bevel gear 20 is fixed to the rear end of the rotating shaft 4, the first bevel gear 20 is arranged between the first double-sided bevel gear 22 and the second double-sided bevel gear 21, the first bevel gear 20 is respectively engaged with the inner side tooth surfaces of the first double-sided bevel gear 22 and the second double-sided bevel gear 21, the first rotating disc 25 and the second rotating disc 28 rotate in the same direction, the first double-sided bevel gear 22 and the second double-sided bevel gear 21 rotate in opposite directions to form a structure which enables the first bevel gear 20 to rotate around the axis of the rotating shaft 4, because the first bevel gear 20 is fixedly connected with the rotating shaft 4, the rotating shaft 20 simultaneously drives the rotating shaft 4 to rotate around the axis of the rotating shaft 4, and the rotating shaft 4 simultaneously drives the head fixing mechanism 1 on the base 2 to, the first rotating disc 25 and the second rotating disc 28 rotate in opposite directions, the first double-face bevel gear 22 and the second double-face bevel gear 21 rotate in the same direction to form a structure which enables the first bevel gear 20 to rotate around the axes of the first double-face bevel gear 22 and the second double-face bevel gear 21, so that the height and angle of the head fixing mechanism 1 on the base 2 in the vertical direction can be adjusted, the rotation adjustment and the vertical adjustment of the head fixing mechanism 1 can be adjusted in multiple angles and heights of the head fixing mechanism 1, and medical workers can be helped to deal with more complicated conditions.
Sixth embodiment, based on the fifth embodiment, as shown in fig. 1 and 8, in order to lock and fix the first rotating disk 25 and the second rotating disk 28, the rear ends of the first rotating disk 25 and the second rotating disk 28 are provided with a detachable U-shaped limiting rod 27, and the periphery of the limiting rod 27 is uniformly provided with a plurality of convex strips 41;
the center of first carousel 25 and second carousel 28 is equipped with a spacing groove 26 respectively, and the inner wall of every spacing groove 26 is equipped with the recess that can block with sand grip 41, and the recess is not shown in the drawing, inserts the spacing groove 26 of homonymy respectively with the tip of gag lever post 27 in, and gag lever post 27 constitutes the spacing structure of locking with the cooperation of spacing groove 26, and after head fixed establishment 1's angle and altitude mixture control, it is spacing to utilize gag lever post 27 to lock first carousel 25 and second carousel 28.
When the medical head fixing mechanism is used, a medical worker firstly rotates the first rotary table 25 and the second rotary table 28 according to the condition of a patient, the adjustment of the rotation angle of the head fixing mechanism 1 is realized by rotating the first rotary table 25 and the second rotary table 28 in the same direction, the adjustment of the vertical height and the angle of the head fixing mechanism 1 is realized by rotating the first rotary table 25 and the second rotary table 28 in opposite directions, the head of the patient is placed on the head fixing mechanism 1 on the base 2 after the adjustment, then the head fixing mechanism 1 is surrounded on the periphery of the head of the patient by controlling the second gear 14 according to the size of the head of the patient, and the extrusion block 36 on the head fixing mechanism 1 extrudes and fixes the head of the patient under the action of the telescopic rod 34.
The head fixing device for the radiotherapy has the advantages of novel structure, ingenious conception and simple and convenient operation, effectively solves the problems that the conventional head fixing device for the radiotherapy cannot adjust the height and the angle of the head fixing device according to the treatment requirement of a patient and cannot adjust the fixing device according to the shape and the size of the head of the patient, realizes the fixation of the head of the patient in multiple angles and heights, and helps medical workers to deal with more complicated conditions. The comfort of the patient and the working efficiency of medical workers are improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The head fixing device for tumor radiotherapy comprises a base (2) and is characterized in that a head fixing mechanism (1) is arranged at the upper end of the base (2), a support frame (3) is arranged at the lower end of the base (2), a rotating shaft (4) is fixedly connected to the rear end of the support frame (3), an adjusting mechanism (5) is arranged at the rear end of the rotating shaft (4), the adjusting mechanism (5) can drive the rotating shaft (4) to rotate around the axis of the rotating shaft (4), and the adjusting mechanism (5) can also drive the rotating shaft (4) to circumferentially swing;
the head fixing mechanism (1) comprises a first clamping mechanism (18) and a second clamping mechanism (19) which are symmetrical to each other, the first clamping mechanism (18) comprises a first connecting rod (6), a second connecting rod (7), a third connecting rod (8), a fourth connecting rod (9), a fifth connecting rod (10) and an arc-shaped guide rod (42), the upper end of the guide rod (42) is hinged with the end parts of the first connecting rod (6) and the second connecting rod (7) through a pin rod (33), the lower end of the guide rod (42) is provided with an arc-shaped guide groove (11), the guide groove (11) is internally provided with the pin rod (33) which can slide along the guide groove (11), the pin rod (33) is hinged with the middle parts of the third connecting rod (8) and the fourth connecting rod (9), the upper end of the third connecting rod (8) is hinged with the lower end of the first connecting rod (6) through the pin rod (33), and the upper end of the fourth connecting rod (9) is hinged with the lower end of the second connecting rod (7) through the pin rod (33, the lower end of the third connecting rod (8) is hinged with the end part of the fifth connecting rod (10) by a pin rod (33);
the head fixing mechanism is characterized in that the first connecting rod (6), the second connecting rod (7), the third connecting rod (8), the fourth connecting rod (9) and the fifth connecting rod (10) are all arc-shaped structures, the second clamping mechanism (19) and the first clamping mechanism (18) are identical in structure, the joint of the first clamping mechanism (18) and the second clamping mechanism (19) is hinged through a pin rod (33), and the fifth connecting rod (10) is rotated positively and negatively to form a structure for driving the head fixing mechanism (1) to open and close;
the end part of each pin rod (33) is connected with a telescopic rod (34), the end part of each telescopic rod (34) is provided with a spherical hinge joint (35), each spherical hinge joint (35) is connected with a truncated cone-shaped extrusion block (36), the end surface with larger area of the extrusion block (36) is inlaid with a plurality of rotatable massage balls (37), and the massage balls (37) can be made of rubber materials;
the adjusting mechanism (5) comprises a fixing frame (43), a first double-face bevel gear (22) is arranged on the right side of the fixing frame (43), a second bevel gear (23) is meshed with the outer side tooth surface of the first double-face bevel gear (22), the rear end of the second bevel gear (23) is connected with a first rotating disc (25) through a first connecting shaft (24), a second double-face bevel gear (21) is arranged on the left side of the fixing frame (43), a third bevel gear (30) is meshed with the outer side tooth surface of the second double-face bevel gear (21), the rear end of the third bevel gear (30) is connected with a second rotating disc (28) through a second connecting shaft (29), the first rotating disc (25) is rotated, the second bevel gear (23) is matched with the first double-face bevel gear (22) to form a bevel gear transmission structure, the second rotating disc (28) is rotated, and the third bevel gear (30) is matched with the;
the left side of the second double-face bevel gear (21) is rotatably connected with a U-shaped supporting rod (31), a rotating shaft (4) rotatably penetrates through one end of the supporting rod (31), a first bevel gear (20) is fixed at the rear end of the rotating shaft (4), the first bevel gear (20) is arranged between the first double-face bevel gear (22) and the second double-face bevel gear (21), the first bevel gear (20) is respectively meshed with the inner side tooth surfaces of the first double-face bevel gear (22) and the second double-face bevel gear (21), a first rotating disc (25) and a second rotating disc (28) rotate in the same direction, the first double-face bevel gear (22) and the second double-face bevel gear (21) rotate in opposite directions to form a structure enabling the first bevel gear (20) to rotate around the axis of the rotating shaft (4), the first rotating disc (25) and the second rotating disc (28) rotate in opposite directions, and the first double-face bevel gear (22) and the second double-face bevel gear (21) rotate in the same direction to form a structure enabling the first bevel gear (20) And a structure in which the axis of the second double-sided bevel gear (21) rotates.
2. The head fixing device for tumor radiotherapy according to claim 1, wherein the telescopic rod (34) comprises a cavity tube (39), a sliding rod (38) which can slide up and down in the cavity tube (39) is arranged in the cavity tube (39), a spring (40) is fixedly connected between the sliding rod (38) and the bottom end of the cavity tube (39), and the spherical hinge joint (35) is rotatably embedded at the upper end of the sliding rod (38) to form a spherical hinge structure.
3. The head fixing device for tumor radiotherapy according to claim 1, wherein a rotating rod (12) is fixed at the lower end of the middle part of the fifth connecting rod (10), the lower end of the rotating rod (12) rotatably penetrates through the base (2) and is arranged at the lower end of the base (2), a first gear (13) is arranged at the lower end of the rotating rod (12), and a second gear (14) is meshed at the rear end of the first gear (13);
the rear end of the base (2) is provided with two sliding grooves (32) in the front-back direction, a push-pull rod (16) capable of sliding back and forth in the sliding grooves (32) is arranged in each sliding groove (32), the front end of each push-pull rod (16) is connected with the sliding grooves (32) on the same side through a tension spring (15), the rear ends of the two push-pull rods (16) are connected with arc-shaped limiting tooth blocks (17), and the limiting tooth blocks (17) are meshed with the second gear (14) to form a locking structure.
4. The head fixing device for tumor radiotherapy according to claim 1, wherein the rear ends of the first rotating disc (25) and the second rotating disc (28) are provided with a detachable U-shaped limiting rod (27), and the periphery of the limiting rod (27) is uniformly provided with a plurality of convex strips (41);
the center of first carousel (25) and second carousel (28) is equipped with a spacing groove (26) respectively, and the inner wall of every spacing groove (26) is equipped with the recess that can with sand grip (41) block, and gag lever post (27) constitutes the spacing structure of locking with spacing groove (26) cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287903.5A CN109985317B (en) | 2019-04-11 | 2019-04-11 | Head fixing device for tumor radiotherapy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910287903.5A CN109985317B (en) | 2019-04-11 | 2019-04-11 | Head fixing device for tumor radiotherapy |
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| CN109985317A CN109985317A (en) | 2019-07-09 |
| CN109985317B true CN109985317B (en) | 2021-01-29 |
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| CN201910287903.5A Expired - Fee Related CN109985317B (en) | 2019-04-11 | 2019-04-11 | Head fixing device for tumor radiotherapy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110974437A (en) * | 2019-12-19 | 2020-04-10 | 常州市第二人民医院 | Head supporting and positioning device for neurosurgery |
| CN111012523B (en) * | 2019-12-20 | 2021-08-10 | 西南医科大学附属中医医院 | Encephalopathy treatment fixing device |
| CN111467051B (en) * | 2020-04-16 | 2021-01-12 | 徐佳丽 | Head restraint support for operation |
Citations (4)
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| US11679053B2 (en) * | 2017-02-17 | 2023-06-20 | Medtec Llc | Body part fixation device with pitch and/or roll adjustment |
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| US5452720A (en) * | 1990-09-05 | 1995-09-26 | Photoelectron Corporation | Method for treating brain tumors |
| CN102847237A (en) * | 2011-06-28 | 2013-01-02 | 苏州雷泰医疗科技有限公司 | Radiotherapy device for stereo positioning of head |
| CN107569784A (en) * | 2017-09-05 | 2018-01-12 | 刘桂平 | A kind of radiotherapy department head fixing device |
| CN208660164U (en) * | 2018-01-30 | 2019-03-29 | 王建军 | A kind of radiotherapy department doctor radiotherapy fixed frame |
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| CN109985317A (en) | 2019-07-09 |
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