Auxiliary positioning device for precise radiotherapy of gastric cancer and use method of auxiliary positioning device

Abstract

The invention relates to the technical field of medical instruments, and discloses a stomach cancer precise radiotherapy auxiliary positioning device and a use method thereof, the stomach cancer precise radiotherapy auxiliary positioning device comprises a base, the base is provided with a mounting seat, and the mounting seat is provided with a bed plate; the adjusting supporting assembly is used for supporting the patient's back according to the patient's back radian; the waist positioning assembly is used for fixing and supporting the waist of the patient; the foot support assembly is used for placing the feet of the patient. Through the arrangement of the adjusting supporting assembly, the multiple flexible blocks can support the back of the patient according to the shape of the back of the patient and keep the fit degree to the back of the patient, so that the effect of positioning the trunk of the patient is achieved, meanwhile, the comfort degree of the patient is guaranteed, and the device can be suitable for the patient with the bent back and humpback; the situation that the patient feels uncomfortable due to long-time supine, the body is twisted, and the treatment process is affected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a precise radiotherapy auxiliary positioning device for gastric cancer and a method of using the same. Background Art

[0002] Precision radiotherapy for gastric cancer, that is, precise radiotherapy for gastric cancer lesions, is an advanced tumor treatment method that combines modern computer technology, physics and radiotherapy medicine. Precision radiotherapy for gastric cancer directly irradiates gastric cancer lesions with radiation, and uses the energy of radiation to kill local tumor cells. This treatment method combines high-precision tumor positioning, plan design, dose calculation and precise execution on the treatment machine to ensure that the radiation dose is concentrated to the lesion area to the maximum extent, while the surrounding normal tissues are less exposed to or protected from unnecessary exposure. During the radiotherapy treatment, auxiliary positioning devices are needed to ensure the accuracy of the treatment position, including auxiliary positioning devices for the patient's body to prevent the patient from twisting his body during treatment and causing deviations in the treatment target, thereby affecting the treatment effect.

[0003] However, the prior art has the following problems:

[0004] When performing precise radiotherapy on the patient's stomach, the existing technology usually requires the patient to lie on his back on a treatment table and fix his waist to achieve the effect of auxiliary positioning of the stomach. However, some elderly patients have a large curvature of the back, and it will cause discomfort if they remain in a supine position for a long time. Patients with hunchbacks are also not convenient to lie on their backs. The patient's inability to remain in a supine position will directly affect the fixation effect of the waist, thereby affecting the accuracy of the treatment target. In addition, different waist fixation devices may need to be replaced according to the different body sizes of patients, which is more troublesome to operate. Summary of the invention

[0005] The purpose of the present invention is to provide a gastric cancer precise radiotherapy auxiliary positioning device and its use method in order to solve the above-mentioned problems and overcome the defects of the prior art, as described in detail below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The precise radiotherapy auxiliary positioning device for gastric cancer provided by the present invention comprises: a base, a mounting seat is installed on the base, and a bed board is installed on the mounting seat; an adjusting support assembly is used to support the patient's back according to the curvature of the patient's back; a waist positioning assembly is used to fix and support the patient's waist; a foot support assembly is used for the patient to place his feet; the adjusting support assembly is arranged in the base, the waist positioning assembly is arranged on the bed board, and the foot support assembly is arranged on the bed board; the adjusting support assembly comprises a perforated plate, the perforated plate is installed inside the mounting seat, a plurality of mounting holes are arranged on the perforated plate, a plurality of sliding shafts are slidably installed on the plurality of mounting holes of the perforated plate, a flexible block is connected to the top of the sliding shaft, a pressure block is connected to the bottom of the sliding shaft, springs are arranged between the plurality of flexible blocks and the perforated plate, the plurality of pressure blocks are in contact with each other, a square groove is arranged on the bed board, and the plurality of flexible blocks are located in the square groove of the bed board.

[0008] Preferably, a plurality of support balls are placed inside the mounting seat, and the plurality of support balls are located below a plurality of pressure blocks. A push plate is slidably mounted on the inner wall of the mounting seat, and a hydraulic cylinder is mounted on the base. The output end of the hydraulic cylinder is connected to the push plate, and the outer surface of the output end of the hydraulic cylinder is slidably connected to the inner wall of the mounting seat, and the push plate is in contact with some of the support balls.

[0009] Preferably, an adjusting cylinder is installed on the side wall of the mounting seat, a screw rod is rotatably installed on the inner wall of the adjusting cylinder, an adjusting plug is slidably connected to the inner wall of the adjusting cylinder, and a turning handle is connected to the end of the screw rod away from the mounting seat.

[0010] Preferably, a threaded groove is provided on the screw rod, the inner wall of the adjusting plug is slidably connected to the threaded groove of the screw rod via a ball bearing, the turning handle is located outside the adjusting cylinder, and the adjusting plug is in contact with a portion of the supporting balls.

[0011] Preferably, the lumbar positioning assembly includes two side support plates, two arc-shaped mounting grooves are arranged on the bed board, the two side support plates are respectively slidably mounted in the two arc-shaped mounting grooves of the bed board, a hinge seat is installed at the bottom of the bed board, two support rods are hinged on the hinge seat, the ends of the two support rods away from the hinge seat are respectively hinged to the two side support plates, connecting rods are respectively hinged on the two support rods, a push rod is hinged to the outer wall of the output end of the hydraulic cylinder, the push rod is hinged to a connecting piece at one end away from the hydraulic cylinder, and both of the connecting rods are hinged to the connecting piece.

[0012] Preferably, an airbag is installed on the inner wall of the side support plate, a flexible pad is connected to the airbag, two air cylinders are installed on the outer wall of the mounting seat, the two air cylinders are respectively connected to air pipes, the ends of the two air pipes away from the air cylinders are respectively connected to the two airbags, and the outer wall of the output end of the hydraulic cylinder is connected to two fixed blocks.

[0013] Preferably, the two fixing blocks are in contact with two air cylinders respectively during movement, the two flexible pads are arranged in a mirror image, and an air core is installed on the airbag.

[0014] Preferably, the footrest assembly includes a footrest plate, a mounting straight groove is provided on the bed board, the footrest plate is rotatably installed in the mounting straight groove of the bed board, the bottom of the footrest plate is connected to a movable rod via a sliding hinge, a fixed rod is installed on the base, pull rods are respectively connected to the two fixed blocks, two slide seats are slidably installed on the base, and two lever rods are installed on the outer wall of the movable rod.

[0015] Preferably, the inner wall of the fixed rod is slidably connected to the outer wall of the movable rod, two sliding grooves are arranged on the fixed rod, the outer walls of the two shift rods are respectively slidably connected to the two sliding grooves of the fixed rod, the two pull rods are respectively connected to the two sliding groove seats, and the two shift rods are respectively slidably connected to the inner walls of the two sliding groove seats through bearings.

[0016] The method for using the gastric cancer precise radiotherapy auxiliary positioning device comprises the following steps:

[0017] Step 1: According to the patient's body shape, roughly adjust the position of the adjustment plug by turning the handle to adjust the size of the internal space of the mounting base;

[0018] Step 2: Lay a medical mattress on the bed board, and help the patient lie on the bed board so that the patient's back is placed on multiple flexible blocks;

[0019] Step 3: After the multiple flexible blocks are positioned according to the shape of the patient's back, the hydraulic cylinder is started, and the push plate pushes the multiple support balls to prop up the multiple pressure blocks, so that the multiple flexible blocks are fixedly supported;

[0020] Step 4: After the two side support plates are raised, the two flexible pads extend toward the patient's waist to support the patient's waist. When the flexible pads support the patient's waist, the air core is opened until the hydraulic cylinder stops working, and the patient's waist positioning is completed;

[0021] Step 5: When the patient needs to bend his legs, two levers are installed in advance, and the footrest can rise with the hydraulic cylinder, so that the patient can put his feet on the footrest to facilitate bending his legs upward;

[0022] Step 6: After the treatment, slightly open the air core, close the hydraulic cylinder, and clean and maintain the bed board.

[0023] The beneficial effects are:

[0024] 1. The precise radiotherapy auxiliary positioning device for gastric cancer adjusts the setting of the support component so that the multiple flexible blocks can support the patient's back according to the shape of the patient's back and maintain a fit to the patient's back, thereby achieving the effect of positioning the patient's trunk while ensuring the patient's comfort. It can be suitable for patients with curved backs and hunchbacks to avoid discomfort caused by lying supine for a long time, thereby twisting the trunk and affecting the treatment process; through the cooperation of the adjustment tube and the adjustment plug, the staff can adjust the support strength of the multiple flexible blocks according to actual usage to ensure the patient's comfort.

[0025] 2. The precise radiotherapy auxiliary positioning device for gastric cancer, through the setting of the waist positioning component, enables the two side support plates to rise after the patient lies down, to limit the two sides of the patient's waist and prevent the patient from moving; through the cooperation of two air bags and two flexible pads, the two air bags can drive the two flexible pads to extend, to support and fix the two sides of the patient's waist, and can be adjusted according to different waist circumferences to maintain a more appropriate supporting force and maintain the patient's comfort, thereby achieving the effect of fixing the patient's stomach position and avoiding stomach displacement during treatment.

[0026] 3. The precise radiotherapy auxiliary positioning device for gastric cancer, through the setting of the footrest assembly, enables the footrest to rise after the patient lies on the bed, so that the patient can put his feet on the footrest and keep his legs bent, thereby achieving the effect of relaxing the legs. This is convenient for patients who are accustomed to bending their legs, further improving the patient's comfort. The footrest can also be not raised by removing the lever, so that it is convenient for patients who do not need to bend their legs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the adjustment support assembly of the present invention;

[0030] Figure 3 It is a schematic diagram of the mounting seat structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the sliding shaft structure of the present invention;

[0032] Figure 5It is a schematic diagram of the structure of the regulating cylinder of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the waist positioning assembly of the present invention;

[0034] Figure 7 It is a schematic diagram of the side support plate structure of the present invention;

[0035] Figure 8 It is a schematic diagram of the airbag structure of the present invention;

[0036] Fig. 9 The present invention Figure 8 A magnified schematic diagram of point A;

[0037] Fig.10 It is a schematic diagram of the structure of the footrest assembly of the present invention;

[0038] Fig.11 It is a schematic diagram of the foot support structure of the present invention.

[0039] The accompanying drawings are marked as follows: 1. Base; 2. Mounting seat; 3. Bed board; 4. Adjustment support assembly; 41. Orifice plate; 42. Sliding shaft; 43. Flexible block; 44. Pressure block; 45. Support ball; 46. Push plate; 47. Hydraulic cylinder; 48. Adjustment cylinder; 49. Adjustment plug; 410. Screw rod; 411. Turn handle; 5. Waist positioning assembly; 51. Push rod; 52. Connector; 53. Connecting rod; 54. Strut; 55. Articulated seat; 56. Side support plate; 57. Fixed block; 58. Air cylinder; 59. Air pipe; 510. Air bag; 511. Flexible pad; 512. Air core; 6. Footrest assembly; 61. Footrest plate; 62. Movable rod; 63. Fixed rod; 64. Dial rod; 65. Slide seat; 66. Pull rod. DETAILED DESCRIPTION

[0040] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0041] Example 1

[0042] See also Figure 1 - Figure 5The precise radiotherapy auxiliary positioning device for gastric cancer comprises: a base 1, a mounting seat 2 is installed on the base 1, and a bed board 3 is installed on the mounting seat 2; an adjustable support component 4 is used to support the patient's back according to the curvature of the patient's back, and the adjustable support component 4 is arranged in the base 1, and the adjustable support component 4 comprises a hole plate 41, and the hole plate 41 is installed inside the mounting seat 2, and a plurality of mounting holes are arranged on the hole plate 41, and a plurality of sliding shafts 42 are slidably installed on the plurality of mounting holes of the hole plate 41, and a flexible block 43 is connected to the top of the sliding shaft 42, and a pressing block 44 is connected to the bottom of the sliding shaft 42, and springs are arranged between the plurality of flexible blocks 43 and the hole plate 41, and the flexible blocks 43 can slide up and down through the sliding shaft 42, and the springs between the flexible blocks 43 and the hole plate 41 make the flexible blocks 43 have a certain direction The elastic force on the bed plate 3, multiple pressing blocks 44 are in contact with each other, a square groove is provided on the bed plate 3, and multiple flexible blocks 43 are all located in the square groove of the bed plate 3. The patient's back is in contact with multiple flexible blocks 43, and multiple flexible blocks 43 can slide downward according to the shape of the patient's back while maintaining contact with the patient's back. Multiple flexible blocks 43 form a shape that fits the patient's back, and multiple support balls 45 are placed inside the mounting seat 2. Multiple support balls 45 are located under multiple pressing blocks 44, and the support balls 45 cannot pass through the gaps between adjacent pressing blocks 44. A push plate 46 is slidably installed on the inner wall of the mounting seat 2, and a hydraulic cylinder 47 is installed on the base 1. The output end of the hydraulic cylinder 47 is connected to the push plate 46, and the outer surface of the output end of the hydraulic cylinder 47 is slidably connected to the inner wall of the mounting seat 2. The push plate 4 6 contacts with part of the support balls 45, and the hydraulic cylinder 47 drives the push plate 46 to move leftward. During the movement of the push plate 46 to the left, the multiple support balls 45 in the mounting seat 2 are squeezed, and some of the support balls 45 are squeezed to the upper layer and contact with the multiple pressing blocks 44. When the support balls 45 contact with the pressing blocks 44, the support balls 45 support the pressing blocks 44, and the contact surfaces between the multiple support balls 45 and the multiple pressing blocks 44 remain in a fitted state. The multiple support balls 45 support and fix the multiple flexible blocks 43 through the multiple pressing blocks 44 and the multiple sliding shafts 42, achieving the effect of supporting and fixing according to the shape of the patient's back, and meeting the back support needs of patients with hunchbacks and back curvature; the side wall of the mounting seat 2 is installed with an adjustment cylinder 48, and the adjustment cylinder 48 is tilted to facilitate the support balls 45 The adjusting cylinder 48 is rolled out, and a screw rod 410 is rotatably installed on the inner wall of the adjusting cylinder 48. An adjusting plug 49 is slidably connected to the inner wall of the adjusting cylinder 48. A turning handle 411 is connected to the end of the screw rod 410 away from the mounting seat 2. A threaded groove is provided on the screw rod 410. The inner wall of the adjusting plug 49 is slidably connected to the threaded groove of the screw rod 410 through a ball. The turning handle 411 is located outside the adjusting cylinder 48. When the screw rod 410 rotates, the adjusting plug 49 is driven to slide in the adjusting cylinder 48 through the cooperation of the threaded groove and the ball. The adjusting plug 49 contacts with part of the supporting balls 45. The sliding of the adjusting plug 49 in the adjusting cylinder 48 can adjust the contact space between the cylinder 48 and the supporting balls 45, thereby increasing or decreasing the number of supporting balls 45 supporting multiple pressing blocks 44, thereby achieving the effect of adjusting the supporting strength.By adjusting the setting of the support component 4, the multiple flexible blocks 43 can support the patient's back according to the shape of the patient's back and maintain the fit to the patient's back, thereby achieving the effect of positioning the patient's trunk and ensuring the patient's comfort. It can be suitable for patients with curved backs and hunchbacks to avoid discomfort caused by lying on the back for a long time, thereby twisting the trunk and affecting the treatment process; through the cooperation of the adjustment cylinder 48 and the adjustment plug 49, the staff can adjust the support strength of the multiple flexible blocks 43 according to the actual use situation to ensure the patient's comfort. ;

[0043] For further information, see Figure 6 - Fig. 9The waist positioning assembly 5 is used to fix and support the patient's waist. The waist positioning assembly 5 is arranged on the bed board 3. The waist positioning assembly 5 includes two side support plates 56. The bed board 3 is provided with two arc-shaped mounting grooves. The two side support plates 56 are respectively slidably mounted in the two arc-shaped mounting grooves of the bed board 3. A hinge seat 55 is installed at the bottom of the bed board 3. Two support rods 54 are hinged on the hinge seat 55. One end of the two support rods 54 away from the hinge seat 55 is respectively hinged to the two side support plates 56. The two support rods 54 are respectively hinged with connecting rods 53. The outer wall of the output end of the hydraulic cylinder 47 is hinged with a push rod 51. The push rod 51 is away from the hydraulic cylinder 47. One end is hinged with a connecting piece 52, and two connecting rods 53 are hinged with the connecting piece 52. The two support rods 54 respectively drive the two side support plates 56 to slide upward in the two arc-shaped installation grooves. After the two side support plates 56 rise upward on the upper plane of the bed board 3, they are located on both sides of the patient's waist, limiting the two sides of the patient's waist to prevent the patient's waist from shifting; the inner wall of the side support plate 56 is installed with an air bag 510, and the air bag 510 is connected to a flexible pad 511. The outer wall of the mounting seat 2 is installed with two air cylinders 58, and the two air cylinders 58 are respectively connected to air pipes 59, and the ends of the two air pipes 59 away from the air cylinders 58 are respectively connected to the two air bags 510 The outer wall of the output end of the hydraulic cylinder 47 is connected to two fixing blocks 57. The two fixing blocks 57 are in contact with two air cylinders 58 respectively during the movement. The two flexible pads 511 are arranged in a mirror image. After the two air cylinders 58 are squeezed, the air is injected into the two air bags 510 through the trachea 59, so that the two air bags 510 are inflated. After the air bags 510 are inflated, the flexible pads 511 are squeezed out. After the two flexible pads 511 are squeezed out, they are closely attached to the two sides of the patient's waist, playing a fixed supporting role for the two sides of the patient's waist. An air core 512 is installed on the air bag 510. Twisting the air core 512 can discharge part of the gas in the air bag 510 to avoid The flexible pad 511 applies too much pressure to the patient's waist and causes discomfort to the patient; through the setting of the waist positioning component 5, after the patient lies down, the two side support plates 56 can rise to limit the two sides of the patient's waist to prevent the patient from moving; through the cooperation of the two airbags 510 and the two flexible pads 511, the two airbags 510 can drive the two flexible pads 511 to extend, support and fix the two sides of the patient's waist, and can be adjusted according to different waist circumferences to maintain a more appropriate supporting force, maintain the patient's comfort, and achieve the effect of fixing the patient's stomach position, avoiding the patient's stomach displacement during treatment.

[0044] Further, see Fig.10 - Fig.11, a footrest assembly 6 is used for placing the patient's feet. The footrest assembly 6 is arranged on the bed board 3. The footrest assembly 6 includes a footrest plate 61. A mounting straight groove is arranged on the bed board 3. The footrest plate 61 is rotatably installed in the mounting straight groove of the bed board 3. The bottom of the footrest plate 61 is connected with a movable rod 62 through a sliding hinge. A fixed rod 63 is installed on the base 1. Two pull rods 66 are respectively connected to the two fixed blocks 57. Two slide seats 65 are slidably installed on the base 1. Two levers 64 are installed on the outer wall of the movable rod 62. The two levers 64 are set to be detachable. The inner wall of the fixed rod 63 is slidably connected to the outer wall of the movable rod 62. Two slide grooves are arranged on the fixed rod 63. The outer walls of the two levers 64 are respectively slidably connected to the two slide grooves of the fixed rod 63. The two pull rods 66 are respectively connected to the two slide seats 65. The two levers 64 are respectively connected to the two slide grooves through bearings. The inner wall of the slide seat 65 is slidably connected. When the two slide seats 65 move to the left, the two levers 64 drive the movable rod 62 to slide upward on the inner wall of the fixed rod 63. When the movable rod 62 moves upward, it drives the footrest 61 to flip upward with the connection between it and the straight groove of the bed board 3 as the center of the circle. The flipped footrest 61 forms an inclined surface, and the patient can place his feet on the footrest 61 to facilitate bending of the legs and keeping the legs relaxed. Through the setting of the footrest assembly 6, after the patient lies on the bed board 3, the footrest 61 can be raised, so that the patient can place his feet on the footrest 61 and keep the legs bent to achieve the effect of relaxing the legs, which is convenient for patients who are accustomed to bending their legs and further improves the comfort of the patients. The footrest 61 can also be kept from rising by removing the lever 64, so that it is convenient for patients who do not need to bend their legs.

[0045] Example 2

[0046] The method for using the gastric cancer precise radiotherapy auxiliary positioning device adopts the gastric cancer precise radiotherapy auxiliary positioning device in Example 1, and further includes the following steps:

[0047] Step 1: First, roughly adjust the position of the adjustment plug 49 by turning the handle 411 according to the patient's body shape, thereby adjusting the size of the internal space of the mounting seat 2;

[0048] Step 2: Lay a medical mattress on the bed board 3, and help the patient lie on the bed board 3 so that the patient's back is placed on the multiple flexible blocks 43;

[0049] Step 3: After the multiple flexible blocks 43 are positioned according to the shape of the patient's back, the hydraulic cylinder 47 is started, and the push plate 46 pushes the multiple support balls 45 to prop up the multiple pressing blocks 44, so that the multiple flexible blocks 43 are fixedly supported;

[0050] Step 4: After the two side support plates 56 are raised, the two flexible pads 511 extend toward the patient's waist to support the patient's waist. When the flexible pads 511 support the patient's waist, the air core 512 is opened until the hydraulic cylinder 47 stops working, and the patient's waist is positioned;

[0051] Step 5: When the patient needs to bend his legs, two levers 64 are installed in advance, and the foot support plate 61 can rise along with the hydraulic cylinder 47, so that the patient can put his feet on the foot support plate 61 to facilitate bending the legs upward;

[0052] Step 6: After the treatment is completed, slightly open the air core 512, close the hydraulic cylinder 47, and clean and maintain the bed board 3.

[0053] With the above structure, the working principle of the case is that after the patient lies on the bed board 3, the patient's back is placed on the square groove of the bed board 3, and the patient's back contacts with multiple flexible blocks 43. Since the flexible blocks 43 can slide up and down through the sliding shaft 42, and the spring between the flexible blocks 43 and the orifice plate 41 makes the flexible blocks 43 have a certain upward elastic force, the multiple flexible blocks 43 can slide downward according to the shape of the patient's back while maintaining contact with the patient's back. The multiple flexible blocks 43 form a shape that fits the patient's back, and the hydraulic cylinder 47 is started. The hydraulic cylinder 47 drives the push plate 46 to move to the left. During the movement of the push plate 46 to the left, the multiple support balls 45 in the mounting seat 2 are squeezed, so that the overall area of ​​the multiple support balls 45 in the horizontal plane is reduced. The total volume of the plurality of support balls 45 is constant, so that the overall height of the plurality of support balls 45 is increased, and some of the support balls 45 are squeezed to the upper layer and contact with the plurality of pressing blocks 44. When the support balls 45 contact with the pressing blocks 44, the support balls 45 support the pressing blocks 44, and the support balls 45 stop moving upward, so that the positions of some support balls 45 are lower and the positions of some support balls 45 are higher. The shape formed by the plurality of pressing blocks 44 is the same as the shape formed by the plurality of flexible blocks 43, and the contact surfaces between the plurality of support balls 45 and the plurality of pressing blocks 44 also remain in a fitted state. After the push plate 46 moves into place, the hydraulic cylinder 47 enters a pressure-maintaining state. At this time, the plurality of support balls 45 support and fix the plurality of flexible blocks 43 through the plurality of pressing blocks 44 and the plurality of sliding shafts 42, thereby achieving the effect of adjusting the pressure according to the shape of the patient's back. The support and fixation effect can be achieved to meet the back support needs of patients with hunchbacks and back curvature; when the shape of the patient's back is quite different from that of a regular patient, the staff turns the turning handle 411, and the turning handle 411 drives the screw rod 410 to rotate. When the screw rod 410 rotates, the adjustment plug 49 is driven to slide in the adjustment cylinder 48 through the cooperation of the threaded groove and the ball. When the adjustment plug 49 moves toward the turning handle 411, the space between the adjustment plug 49 and the inside of the mounting seat 2 increases, and some of the support balls 45 can enter the space of the adjustment cylinder 48, so that the number of support balls 45 supporting multiple pressing blocks 44 is reduced, which is suitable for patients with more severe back protrusions. When the adjustment plug 49 moves away from the turning handle 411, the space between the adjustment plug 49 and the inside of the mounting seat 2 is reduced, and the adjustment cylinder 48 The tilted setting makes it easier for the support balls 45 to roll out of the adjustment cylinder 48, so that the number of support balls 45 supporting the multiple pressing blocks 44 is increased, which is suitable for patients with small back fluctuations. The staff can make a rough adjustment in advance before the patient lies down according to the actual situation of the patient. After the patient lies down, fine-tuning can be made according to the patient's experience to ensure the patient's comfort. By adjusting the setting of the support component 4, the multiple flexible blocks 43 can support the patient's back according to the shape of the patient's back and maintain a fit to the patient's back, thereby achieving the effect of positioning the patient's torso and ensuring the patient's comfort. It can be suitable for patients with bent backs and hunchbacks, avoiding discomfort caused by lying on the back for a long time, thereby twisting the torso and affecting the treatment process.Through the cooperation of the adjustment cylinder 48 and the adjustment plug 49, the staff can adjust the support strength of the multiple flexible blocks 43 according to the actual use situation to ensure the comfort of the patient. ;

[0054] When the hydraulic cylinder 47 extends to the left, the hydraulic cylinder 47 drives the bottom of the push rod 51 to move to the left. Since the two support rods 54 and the two connecting rods 53 limit the top of the push rod 51 through the connecting piece 52, the top of the push rod 51 can only move up and down. When the bottom of the push rod 51 moves to the left, the top of the push rod 51 moves upward. When the top of the push rod 51 moves upward, the two connecting rods 53 are driven to move upward through the connecting piece 52. When the two connecting rods 53 move upward, they respectively drive the two support rods 54 to flip upward with the hinge seat 55 as the center of the circle, so that the two support rods 54 respectively drive the two side support plates 56 to rotate on both sides. The two side support plates 56 are raised on the upper plane of the bed plate 3 and are located on both sides of the patient's waist, limiting the two sides of the patient's waist to prevent the patient's waist from shifting. When the hydraulic cylinder 47 moves, the hydraulic cylinder 47 drives the two fixing blocks 57 to move leftward. When the two fixing blocks 57 move leftward, they contact and squeeze the two air cylinders 58. After the two air cylinders 58 are squeezed, air is injected into the two air bags 510 through the trachea 59, so that the two air bags 510 swell. After the air bags 510 swell, the flexible pads 511 are squeezed out. After the two flexible pads 511 are squeezed out, they are tightly attached to the two sides of the patient's waist, thus ensuring the patient's waist is comfortable. The two flexible pads 511 are used to fix and support the two sides of the patient's waist. When used by patients with larger waist circumferences, if the two flexible pads 511 are still moving after contacting the patient's waist, the staff twists open the air core 512 to discharge the gas subsequently added in the air bag 510 and stop the flexible pad 511 from moving further, so as to avoid excessive pressure exerted by the flexible pad 511 on the patient's waist and causing discomfort to the patient. After the treatment, the two fixing blocks 57 are reset, and the two air cylinders 58 draw the air in the two air bags 510 back into the air cylinders 58 during the reset process. If the air core 512 has been opened before, the air core 512 is opened again when the air bag 510 contracts. 2. Keep the air cylinder 58 at normal pressure after it recovers air; through the setting of the waist positioning component 5, after the patient lies down, the two side support plates 56 can rise to limit the two sides of the patient's waist to prevent the patient from moving; through the cooperation of the two air bags 510 and the two flexible pads 511, the two air bags 510 can drive the two flexible pads 511 to extend, support and fix the two sides of the patient's waist, and can be adjusted according to different waist circumferences to maintain a more appropriate support force and maintain the patient's comfort, thereby achieving the effect of fixing the patient's stomach position and preventing the patient's stomach from shifting during treatment.

[0055] When the two fixed blocks 57 move to the left, the two pull rods 66 drive the two slide seats 65 to move to the left. Due to the limiting effect of the two slide slots on the fixed rod 63 on the two levers 64, the two slide seats 65 drive the movable rod 62 to slide upward on the inner wall of the fixed rod 63 through the two levers 64 when moving to the left. When the movable rod 62 moves upward, it drives the foot support plate 61 to flip upward with the connection between it and the straight groove of the bed plate 3 as the center of the circle. The flipped foot support plate 61 forms an inclined surface, and the patient can place his feet on the foot support plate 61 to facilitate leg bending and keep the legs relaxed. The two levers 64 It is set to be detachable. When the patient does not need to bend his legs, the staff can remove the two levers 64, and the footrest 61 will not move, so that the footrest 61 and the bed board 3 form a plane; through the setting of the footrest assembly 6, after the patient lies on the bed board 3, the footrest 61 can be raised, so that the patient can put his feet on the footrest 61 and keep his legs bent, thereby achieving the effect of relaxing the legs, which is convenient for patients who are accustomed to bending their legs and further improves the patient's comfort. The footrest 61 can also be kept from rising by removing the lever 64, so that it is convenient for patients who do not need to bend their legs.

[0056] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. Gastric cancer precise radiotherapy auxiliary positioning device, characterized in that: include: A base (1), a mounting seat (2) being mounted on the base (1), and a bed board (3) being mounted on the mounting seat (2); An adjustable support assembly (4) for supporting the patient's back according to the curvature of the patient's back; A waist positioning component (5), used for fixing and supporting the patient's waist; A foot support assembly (6), used for placing the patient's feet; The adjustable support assembly (4) is arranged in the base (1), the waist positioning assembly (5) is arranged on the bed board (3), and the foot support assembly (6) is arranged on the bed board (3); The adjustment support assembly (4) comprises a perforated plate (41), wherein the perforated plate (41) is mounted inside the mounting seat (2), wherein a plurality of mounting holes are arranged on the perforated plate (41), wherein a plurality of sliding shafts (42) are slidably mounted on the plurality of mounting holes of the perforated plate (41), wherein a flexible block (43) is connected to the top of the sliding shaft (42), wherein a pressure block (44) is connected to the bottom of the sliding shaft (42), wherein springs are arranged between the plurality of flexible blocks (43) and the perforated plate (41), wherein the plurality of pressure blocks (44) are in contact with each other, wherein a square groove is arranged on the bed plate (3), wherein the plurality of flexible blocks (43) are located in the square groove of the bed plate (3).

2. The gastric cancer precise radiotherapy auxiliary positioning device according to claim 1, characterized in that: A plurality of supporting balls (45) are placed inside the mounting seat (2), and the plurality of supporting balls (45) are located below a plurality of pressing blocks (44). A push plate (46) is slidably mounted on the inner wall of the mounting seat (2). A hydraulic cylinder (47) is mounted on the base (1), and the output end of the hydraulic cylinder (47) is connected to the push plate (46). The outer surface of the output end of the hydraulic cylinder (47) is slidably connected to the inner wall of the mounting seat (2), and the push plate (46) contacts some of the supporting balls (45).

3. The gastric cancer precise radiotherapy auxiliary positioning device according to claim 2, characterized in that: An adjusting cylinder (48) is installed on the side wall of the mounting seat (2), a screw rod (410) is rotatably installed on the inner wall of the adjusting cylinder (48), an adjusting plug (49) is slidably connected to the inner wall of the adjusting cylinder (48), and a turning handle (411) is connected to one end of the screw rod (410) away from the mounting seat (2).

4. The gastric cancer precise radiotherapy auxiliary positioning device according to claim 3, characterized in that: The screw rod (410) is provided with a thread groove, the inner wall of the adjusting plug (49) is slidably connected to the thread groove of the screw rod (410) via a ball bearing, the turning handle (411) is located outside the adjusting cylinder (48), and the adjusting plug (49) is in contact with a portion of the supporting ball (45).

5. The gastric cancer precise radiotherapy auxiliary positioning device according to claim 4, characterized in that: The waist positioning assembly (5) comprises two side support plates (56), and two arc-shaped mounting grooves are arranged on the bed board (3). The two side support plates (56) are respectively slidably mounted in the two arc-shaped mounting grooves of the bed board (3). A hinge seat (55) is installed at the bottom of the bed board (3), and two support rods (54) are hinged on the hinge seat (55). One end of the two support rods (54) away from the hinge seat (55) is hinged to the two side support plates (56) respectively, and the two support rods (54) are respectively hinged to connecting rods (53). The outer wall of the output end of the hydraulic cylinder (47) is hinged with a push rod (51), and one end of the push rod (51) away from the hydraulic cylinder (47) is hinged with a connecting piece (52), and the two connecting rods (53) are both hinged to the connecting piece (52).

6. The gastric cancer precise radiotherapy auxiliary positioning device according to claim 5, characterized in that: An air bag (510) is installed on the inner wall of the side support plate (56), and a flexible pad (511) is connected to the air bag (510). Two air cylinders (58) are installed on the outer wall of the mounting seat (2), and air pipes (59) are respectively connected to the two air cylinders (58). One end of the two air pipes (59) away from the air cylinder (58) is respectively connected to the two air bags (510), and the outer wall of the output end of the hydraulic cylinder (47) is connected to two fixing blocks (57).

7. The gastric cancer precise radiotherapy auxiliary positioning device according to claim 6, characterized in that: The two fixing blocks (57) are in contact with the two air cylinders (58) respectively during movement, the two flexible pads (511) are arranged in a mirror image, and an air core (512) is installed on the air bag (510).

8. The gastric cancer precise radiotherapy auxiliary positioning device according to claim 7, characterized in that: The footrest assembly (6) includes a footrest plate (61), a mounting straight groove is provided on the bed board (3), the footrest plate (61) is rotatably installed in the mounting straight groove of the bed board (3), the bottom of the footrest plate (61) is connected to a movable rod (62) via a sliding hinge, a fixing rod (63) is installed on the base (1), and the two fixing blocks (57) are respectively connected to pull rods (66), two slide groove seats (65) are slidably installed on the base (1), and two shifting rods (64) are installed on the outer wall of the movable rod (62).

9. The gastric cancer precise radiotherapy auxiliary positioning device according to claim 8, characterized in that: The inner wall of the fixed rod (63) is slidably connected to the outer wall of the movable rod (62); the fixed rod (63) is provided with two slide grooves; the outer walls of the two shifting rods (64) are respectively slidably connected to the two slide grooves of the fixed rod (63); the two pull rods (66) are respectively connected to the two slide groove seats (65); the two shifting rods (64) are respectively slidably connected to the inner walls of the two slide groove seats (65) via bearings.

10. A method for using a precise radiotherapy auxiliary positioning device for gastric cancer, characterized in that: The gastric cancer precise radiotherapy auxiliary positioning device according to any one of claims 1 to 9 further comprises the following steps: Step 1: First, according to the patient's body shape, the position of the adjustment plug (49) is roughly adjusted by turning the handle (411), thereby adjusting the size of the internal space of the mounting seat (2); Step 2: Lay a medical mattress on the bed board (3), and help the patient lie on the bed board (3) so that the patient's back is placed on the multiple flexible blocks (43); Step 3: After the multiple flexible blocks (43) are positioned according to the shape of the patient's back, the hydraulic cylinder (47) is started, and the push plate (46) pushes the multiple support balls (45) to prop up the multiple pressure blocks (44), so that the multiple flexible blocks (43) are fixedly supported; Step 4: After the two side support plates (56) are raised, the two flexible pads (511) extend toward the patient's waist to support the patient's waist. When the flexible pads (511) support the patient's waist, the air core (512) is opened until the hydraulic cylinder (47) stops working, and the patient's waist positioning is completed; Step 5: When the patient needs to bend his legs, two levers (64) are installed in advance, and the foot support plate (61) can rise along with the hydraulic cylinder (47), so that the patient can put his feet on the foot support plate (61) to facilitate bending the legs upward; Step 6: After the treatment is completed, slightly open the air core (512), close the hydraulic cylinder (47), and clean and maintain the bed board (3).

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