Tumor radiotherapy positioning and fixing device

Abstract

The invention relates to the field of medical instruments, in particular to a tumor radiotherapy positioning and fixing device which comprises a bottom plate, a horizontal adjusting mechanism is arranged on the upper surface of the bottom plate, a sliding cover is arranged at the top of the horizontal adjusting mechanism, and a limb fixing mechanism is arranged on the upper surface of the sliding cover. A four-limb fixing mechanism is arranged on the upper surface of the sliding cover and can rotate by 360 degrees. A vertical shaft made of iron is arranged at the bottom of the four-limb fixing mechanism, the vertical shaft is arranged on a sliding cover through a fixing bearing and penetrates through the sliding cover, an electromagnet is installed at the bottom of the sliding cover, the upper surface of the electromagnet is tightly attached to the lower surface of the vertical shaft, and the electromagnet attracts the vertical shaft after being powered on, so that the four-limb fixing mechanism can stop at any angle. Scales are arranged on the circumferential face of the bottom of the vertical shaft and are plus or minus 180 degrees, the division value of the scales is 1 mm, a pointer is installed on the upper surface of the fixing disc, the point of the pointer corresponds to the scales and is used for indicating the rotating angle of the four-limb fixing mechanism, and the four-limb fixing mechanism is suitable for wide popularization.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, in particular to a positioning and fixing device for tumor radiotherapy. Background Art

[0002] The treatment methods for cancer patients mainly include surgery, radiotherapy and chemotherapy. Among the many treatment methods, radiotherapy plays a vital role in the recovery of patients. During radiotherapy, due to the large number of radiation times, long cycles and many factors involved, the accuracy of the body position for radiotherapy is difficult to control, which can easily lead to under-irradiation or over-irradiation of the tumor. In addition, inaccurate positioning during radiotherapy will greatly increase the recurrence rate of radiotherapy patients. At present, during radiotherapy, special attention is paid to the placement and fixation of the patient's body position. The current equipment for fixing the patient's limbs is relatively simple, and cannot be effectively adjusted and fixed according to the different limb placement postures of the patient, and the function is relatively single.

[0003] Chinese patent CN116059543A discloses a tumor radiotherapy positioning and fixing device, comprising a bottom plate, wherein the left and right sides of the rear side of the upper end of the bottom plate are respectively hinged with a first swinging plate that can swing forward and backward, and the left and right sides of the front side of the upper end of the bottom plate are respectively hinged with a second swinging plate that can swing synchronously with the first swinging plate, and the inner sides of the upper ends of the first swinging plate and the second swinging plate are respectively provided with mounting blocks, and the two mounting blocks on the rear side are respectively hinged with the first swinging plate on the rear side, and the surfaces of the two mounting blocks on the front side are commonly fixedly connected with a mounting rod, and the two sides of the surface of the mounting rod are respectively slidably connected with the second swinging plates on both sides, and the two ends of the mounting rod are respectively threadedly connected with fixing knobs, and the mounting block is installed with a mounting platform that can swing left and right, and the inner side of the upper end of the mounting platform is slidably connected with a lifting and lowering placing platform, and the left end of the mounting platform is fixedly connected with a first Velcro, and the right end of the mounting platform is fixedly connected with a fixing belt, and the lower end of the fixing belt is fixedly connected with a second Velcro that can be bonded with the first Velcro. When in use, the mounting table can also swing left and right, and can be adjusted according to the different positions of the patient's limbs, so as to facilitate the fixation of the limbs and have various functions. Although the patent has many advantages, the structure is complex and the flexibility is poor. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a tumor radiotherapy positioning and fixing device.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a tumor radiotherapy positioning and fixing device, comprising a base plate, a horizontal adjustment mechanism is arranged on the upper surface of the base plate, a sliding cover is arranged on the top of the horizontal adjustment mechanism, a limb fixing mechanism is arranged on the upper surface of the sliding cover, and a limb fixing mechanism is arranged on the upper surface of the sliding cover, and the limb fixing mechanism can rotate 360°.

[0006] Specifically, the horizontal adjustment mechanism includes a first vertical plate, a second vertical plate, a first motor, a first driving gear, a first driven gear, a lead screw, a sliding nut, a sliding frame, a column, a linear slide rail and a slider.

[0007] Specifically, the first vertical plate and the second vertical plate are both vertically arranged on the upper surface of the bottom plate, the first motor is horizontally arranged on the first vertical plate, and the first driving gear is arranged at the output end of the first motor.

[0008] Specifically, both ends of the lead screw are rotatably disposed on the first vertical plate and the second vertical plate through bearings respectively, and the first driven gear is disposed at one end of the lead screw and meshes with the first driving gear.

[0009] Specifically, the sliding nut is arranged on the lead screw through an internal thread, and sliding frames are symmetrically arranged on the left and right sides of the sliding nut, and a column is vertically arranged on the upper surface of the sliding frame; The bottom of the inner cavity of the sliding cover is arranged on the upper surface of the column.

[0010] Specifically, the linear slide rails are symmetrically arranged on the upper surface of the bottom plate, there are two linear slide rails in total, the slider is slidably arranged on the linear slide rails, and the bottom of the sliding frame is arranged on the linear slide rails.

[0011] Specifically, the limb fixing mechanism includes an arc-shaped seat and an arc-shaped support plate; A vertical shaft is arranged at the bottom of the arc-shaped seat, a fixed bearing is arranged at the lower end of the vertical shaft, the vertical shaft is arranged on the sliding cover through the fixed bearing, the vertical shaft passes through the sliding cover, an electromagnet is installed at the bottom of the sliding cover, the upper surface of the electromagnet is tightly fitted with the lower surface of the vertical shaft, and two bandages for fixing the patient's limbs are arranged on the upper surface of the arc-shaped support plate.

[0012] Specifically, a scale is arranged on the circumferential surface at the bottom of the vertical shaft, the scale is plus or minus 180°, and the graduation value of the scale is 1mm.

[0013] Specifically, a fixed plate is installed on the upper surface of the fixed bearing, and a pointer is installed on the upper surface of the fixed plate. The needle tip of the pointer corresponds to a scale and is used to indicate the rotation angle of the limb fixing mechanism.

[0014] Specifically, two connecting rods are provided at the front end of the base plate, and suction cups are provided at the bottom of the front ends of the two connecting rods. A U-shaped fixing frame is provided at the bottom of the end of the base plate, and fastening bolts are provided at the bottom of the front end of the U-shaped fixing frame. A control screen for controlling the first motor and electromagnet is provided on the upper surface of the sliding cover.

[0015] The beneficial effects of the present invention are: The present invention discloses a tumor radiotherapy positioning and fixing device, comprising a base plate, a horizontal adjustment mechanism is arranged on the upper surface of the base plate, a sliding cover is arranged on the top of the horizontal adjustment mechanism, a limb fixing mechanism is arranged on the upper surface of the sliding cover, and the limb fixing mechanism can rotate 360 ​​degrees. A vertical shaft is arranged at the bottom of the limb fixing mechanism, the vertical shaft is made of iron, the vertical shaft is arranged on the sliding cover through a fixed bearing, the vertical shaft passes through the sliding cover, an electromagnet is installed at the bottom of the sliding cover, the upper surface of the electromagnet is tightly fitted with the lower surface of the vertical shaft, the electromagnet sucks the vertical shaft after being energized, so that the limb fixing mechanism can stop at any angle, a scale is arranged on the circumferential surface of the bottom of the vertical shaft, the scale is positive and negative 180 degrees, and the graduation value of the scale is 1mm, a fixed disk is installed on the upper surface of the fixed bearing, a pointer is installed on the upper surface of the fixed disk, the needle tip of the pointer corresponds to the scale, and is used to indicate the rotation angle of the limb fixing mechanism, which is suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the U-shaped fixing frame of the present invention; Figure 3 This is a schematic diagram of the fastening bolt structure of the present invention; Figure 4 It is a schematic diagram of the structure of the horizontal adjustment mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the horizontal adjustment mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the limb fixing mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the limb fixing mechanism of the present invention; Figure 8 It is a schematic diagram of the scale structure of the present invention; Fig. 9 This is a schematic diagram of the fixed disk structure of the present invention; Fig.10 It is a schematic diagram of the structure of the electromagnet of the present invention; In the figure: 1-base plate, 2-connecting rod, 21-suction cup, 3-U-shaped fixing frame, 31-fastening bolt, 4-horizontal adjustment mechanism, 41-first vertical plate, 410-second vertical plate, 42-first motor, 43-first driving gear, 44-first driven gear, 45-screw, 46-sliding nut, 47-sliding frame, 48-column, 49-linear slide rail, 491-slider, 5-sliding cover, 6-limb fixing mechanism, 61-arc seat, 62-arc support plate, 63-binding strap, 8-control screen, 10-vertical shaft, 11-fixed bearing, 12-fixed plate, 13-pointer, 14-scale, 15-electromagnet. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 10 As shown, a tumor radiotherapy positioning and fixing device includes a base plate 1, a horizontal adjustment mechanism 4 is arranged on the upper surface of the base plate 1, a sliding cover 5 is arranged on the top of the horizontal adjustment mechanism 4, and a limb fixing mechanism 6 is arranged on the upper surface of the sliding cover 5. The limb fixing mechanism 6 can rotate 360°.

[0020] The horizontal adjustment mechanism 4 includes a first vertical plate 41 , a second vertical plate 401 , a first motor 42 , a first driving gear 43 , a first driven gear 44 , a lead screw 45 , a sliding nut 46 , a sliding frame 47 , a column 48 , a linear slide rail 49 and a slider 491 .

[0021] The first vertical plate 41 and the second vertical plate 401 are both vertically arranged on the upper surface of the bottom plate 1 , the first motor 42 is horizontally arranged on the first vertical plate 41 , and the first driving gear 43 is arranged at the output end of the first motor 42 .

[0022] Both ends of the lead screw 45 are rotatably disposed on the first vertical plate 41 and the second vertical plate 401 through bearings respectively. The first driven gear 44 is disposed at one end of the lead screw 45 and meshes with the first driving gear 43 .

[0023] The sliding nut 46 is arranged on the lead screw 45 through an internal thread, and sliding frames 47 are symmetrically arranged on the left and right sides of the sliding nut 46, and a column 48 is vertically arranged on the upper surface of the sliding frame 47; The bottom of the inner cavity of the sliding cover 5 is arranged on the upper surface of the column 48 .

[0024] The linear slide rails 49 are symmetrically arranged on the upper surface of the base plate 1 . There are two linear slide rails 49 . The slider 491 is slidably arranged on the linear slide rails 49 . The bottom of the sliding frame 47 is arranged on the linear slide rails 49 .

[0025] The limb fixing mechanism 6 comprises an arc-shaped seat 61 and an arc-shaped support plate 62; The arc-shaped support plate 62 is used to place the patient's limbs, and two bandages 7 for fixing the patient's limbs are arranged on the upper surface of the arc-shaped support plate 62; A vertical shaft 10 is arranged at the bottom of the arc seat 61, and a fixed bearing 11 is arranged at the lower end of the vertical shaft 10. The vertical shaft 10 is arranged on the sliding cover 5 through the fixed bearing 11. The vertical shaft 10 passes through the sliding cover 5. An electromagnet 15 is installed at the bottom of the sliding cover 5, and the upper surface of the electromagnet 15 is tightly fitted with the lower surface of the vertical shaft 10.

[0026] A scale 14 is arranged on the circumferential surface at the bottom of the vertical shaft 10 . The scale 14 is positive and negative 180°, and the division value of the scale 14 is 1 mm.

[0027] A fixed plate 12 is installed on the upper surface of the fixed bearing 11 , and a pointer 13 is installed on the upper surface of the fixed plate 12 . The needle tip of the pointer 13 corresponds to a scale 14 for indicating the rotation angle of the limb fixing mechanism 6 .

[0028] Two connecting rods 2 are provided at the front end of the base plate 1, and suction cups 21 are provided at the bottom of the front ends of the two connecting rods 2. A U-shaped fixing frame 3 is provided at the bottom of the end of the base plate 1, and a fastening bolt 31 is provided at the bottom of the front end of the U-shaped fixing frame 3. A control panel 8 for controlling the first motor 42 and the electromagnet 15 is provided on the upper surface of the sliding cover 5.

[0029] A vertical shaft 10 is arranged at the bottom of the limb fixing mechanism 6. The material of the vertical shaft 10 is iron. The vertical shaft 10 is arranged on the sliding cover 5 through a fixed bearing 11. The vertical shaft 10 passes through the sliding cover 5. An electromagnet 15 is installed at the bottom of the sliding cover 5. The upper surface of the electromagnet 15 is tightly fitted with the lower surface of the vertical shaft 10. After the electromagnet 15 is energized, the vertical shaft 10 is sucked, so that the limb fixing mechanism 6 can be stopped at any angle. A scale 14 is arranged on the circumferential surface of the bottom of the vertical shaft 10. The scale 14 is positive and negative 180°, and the graduation value of the scale 14 is 1mm. A fixed disk 12 is installed on the upper surface of the fixed bearing 11, and a pointer 13 is installed on the upper surface of the fixed disk 12. The needle tip of the pointer 13 corresponds to the scale 14, which is used to indicate the rotation angle of the limb fixing mechanism 6, which is suitable for wide promotion.

[0030] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A positioning and fixing device for tumor radiotherapy, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is provided with a horizontal adjustment mechanism (4), the top of the horizontal adjustment mechanism (4) is provided with a sliding cover (5), the upper surface of the sliding cover (5) is provided with a limb fixing mechanism (6), and the limb fixing mechanism (6) can rotate 360 ​​degrees.

2. The tumor radiotherapy positioning and fixing device according to claim 1, characterized in that: The horizontal adjustment mechanism (4) comprises a first vertical plate (41), a second vertical plate (401), a first motor (42), a first driving gear (43), a first driven gear (44), a lead screw (45), a sliding nut (46), a sliding frame (47), a column (48), a linear slide rail (49) and a sliding block (491).

3. The tumor radiotherapy positioning and fixing device according to claim 2, characterized in that: The first vertical plate (41) and the second vertical plate (401) are both vertically arranged on the upper surface of the bottom plate (1), the first motor (42) is horizontally arranged on the first vertical plate (41), and the first driving gear (43) is arranged at the output end of the first motor (42).

4. The tumor radiotherapy positioning and fixing device according to claim 3 is characterized in that: The two ends of the lead screw (45) are rotatably arranged on the first vertical plate (41) and the second vertical plate (401) respectively through bearings, and the first driven gear (44) is arranged at one end of the lead screw (45) and meshes with the first driving gear (43).

5. The tumor radiotherapy positioning and fixing device according to claim 4, characterized in that: The sliding nut (46) is arranged on the lead screw (45) via an internal thread, and sliding frames (47) are symmetrically arranged on the left and right sides of the sliding nut (46), and a column (48) is vertically arranged on the upper surface of the sliding frame (47); The bottom of the inner cavity of the sliding cover (5) is arranged on the upper surface of the column (48).

6. The tumor radiotherapy positioning and fixing device according to claim 5, characterized in that: The linear slide rails (49) are symmetrically arranged on the upper surface of the base plate (1), there are two linear slide rails (49) in total, the slider (491) is slidably arranged on the linear slide rails (49), and the bottom of the sliding frame (47) is arranged on the linear slide rails (49).

7. The tumor radiotherapy positioning and fixing device according to claim 6, characterized in that: The limb fixing mechanism (6) comprises an arc-shaped seat (61) and an arc-shaped support plate (62); The upper surface of the arc-shaped support plate (62) is provided with two bandages (7) for fixing the patient's limbs; A vertical shaft (10) is arranged at the bottom of the arc seat (61), a fixed bearing (11) is arranged at the lower end of the vertical shaft (10), the vertical shaft (10) is arranged on the sliding cover (5) through the fixed bearing (11), the vertical shaft (10) passes through the sliding cover (5), an electromagnet (15) is installed at the bottom of the sliding cover (5), and the upper surface of the electromagnet (15) is tightly fitted with the lower surface of the vertical shaft (10).

8. The tumor radiotherapy positioning and fixing device according to claim 7, characterized in that: A scale (14) is provided on the circumferential surface at the bottom of the vertical shaft (10), the scale (14) is plus or minus 180°, and the graduation value of the scale (14) is 1 mm.

9. The tumor radiotherapy positioning and fixing device according to claim 8, characterized in that: A fixed disk (12) is mounted on the upper surface of the fixed bearing (11), and a pointer (13) is mounted on the upper surface of the fixed disk (12). The needle tip of the pointer (13) corresponds to a scale (14) and is used to indicate the rotation angle of the limb fixing mechanism (6).

10. The tumor radiotherapy positioning and fixing device according to claim 9, characterized in that: Two connecting rods (2) are arranged at the front end of the base plate (1), and suction cups (21) are arranged at the bottom of the front ends of the two connecting rods (2). A U-shaped fixing frame (3) is arranged at the bottom of the end of the base plate (1), and a fastening bolt (31) is arranged at the bottom of the front end of the U-shaped fixing frame (3). A control panel (8) for controlling the first motor (42) and the electromagnet (15) is arranged on the upper surface of the sliding cover (5).

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