Abdominal pressure device for radiotherapy
By designing the support components and abdominal pressure components of the abdominal pressure device, and using threaded rods to control the movement of the abdominal pressure plate, the problem of increased liver movement range during radiotherapy for liver cancer was solved, improving the accuracy and stability of radiotherapy and preventing ineffective or excessive pressure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF XIAMEN UNIV
- Filing Date
- 2025-01-09
- Publication Date
- 2026-04-24
AI Technical Summary
During radiotherapy for liver cancer, the body's internal respiratory movements and abdominal peristalsis increase the range of liver movement, thus expanding the radiotherapy area. Current technology struggles to effectively address this issue.
An abdominal pressure device comprising a housing, a support assembly, and an abdominal pressure assembly was designed. The device uses a threaded rod to control the up-and-down movement of the abdominal pressure plate, which applies pressure to the patient's abdomen. With the help of a guide and limiting structure, the device ensures the precise movement and pressure effect of the abdominal pressure plate.
It effectively reduces the expansion of the liver's range of motion, improves the accuracy and stability of radiotherapy, prevents ineffective or excessive pressure, and ensures that patients can pass through the patient passage smoothly.
Smart Images
Figure CN224156189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of radiotherapy technology, and more specifically, to an abdominal pressure device for radiotherapy. Background Technology
[0002] Radiation therapy for cancer, also known as radiotherapy or radiation therapy, is a method of treating cancer using radiation. It involves using high-energy rays or other types of radiation to destroy the DNA of cancer cells, thereby preventing them from growing and dividing.
[0003] Currently, during radiotherapy for liver cancer, the range of liver movement increases due to respiratory movements or abdominal peristalsis, thus expanding the radiotherapy area. This does not meet existing needs. To address this, we propose an abdominal pressure device for radiotherapy. Utility Model Content
[0004] The purpose of this invention is to provide an abdominal pressure device for radiotherapy, in order to solve the problem that in the current radiotherapy process for liver cancer, the range of liver movement increases due to respiratory movements or abdominal peristalsis, thereby expanding the radiotherapy range.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an abdominal pressure device for radiotherapy, comprising: a housing, one end of which is clamped to a hospital bed and a patient passage for the patient to pass through is provided at the end of the housing near the hospital bed; a support assembly, comprising a guide plate and a fixing plate, the guide plate being slidably disposed at the end of the housing away from the hospital bed and located inside the housing, the fixing plate being spaced apart on the side of the guide plate away from the hospital bed, and an abdominal pressure assembly being disposed on the fixing plate, the abdominal pressure assembly extending completely through the guide plate into the patient passage on the side of the abdominal pressure assembly facing the hospital bed; and an abdominal pressure assembly comprising an abdominal pressure plate disposed on the side of the guide plate facing the hospital bed, a threaded rod for extending and retracting the abdominal pressure plate being disposed on the side of the abdominal pressure plate facing the guide plate, the end of the threaded rod away from the abdominal pressure plate extending outside the housing, and the threaded rod being close to the guide plate.
[0006] By adopting the above technical solution, firstly, the abdominal pressure device includes a housing for protecting the support component and the abdominal pressure component, preventing impurities from entering the support component and the abdominal pressure component, which could lead to malfunctions and reduced performance of the support component and the abdominal pressure component. Secondly, the abdominal pressure component includes an abdominal pressure plate for contacting the patient and a threaded rod for controlling the up-and-down movement of the abdominal pressure plate. The threaded rod controls the up-and-down movement of the abdominal pressure plate, improving the pressure effect of the abdominal pressure plate on the patient and preventing ineffective pressure or the patient being unable to pass through the patient passage.
[0007] The present invention is further configured as follows: a first guide opening for guiding is provided on the guide plate; a first limiting member is slidably provided on the side of the guide plate facing the fixed plate; a second guide opening for guiding is provided on the fixed plate; a second limiting member is slidably provided on the side of the fixed plate away from the guide plate; a third guide opening for guiding is provided on the housing and located at the end of the housing away from the hospital bed; an abdominal pressure plate is slidably provided at the end of the first guide opening facing the hospital bed; a threaded rod is detachably provided on the side of the abdominal pressure plate away from the hospital bed; the end of the threaded rod away from the abdominal pressure plate completely penetrates the guide plate, the fixed plate, the housing, the first limiting member, and the second limiting member; and the threaded rod is located within the first guide opening, the second guide opening, and the third guide opening; the threaded rod is threadedly connected to the first limiting member and the second limiting member.
[0008] By adopting the above technical solution, the operator can control the lateral movement of the abdominal pressure plate by sliding the threaded rod.
[0009] The present invention is further configured such that: a pair of driving components for driving screws are provided on the side of the fixed plate away from the guide plate, and the two driving components are located on both sides of the threaded rod; a slider is also provided on the threaded rod, and the slider is slidably provided on the fixed plate; a pair of screws are provided at intervals on the slider, and the two ends of each screw are respectively provided on the two driving components.
[0010] By adopting the above technical solution, the accuracy of the lateral movement of the threaded rod is improved.
[0011] The present invention is further configured such that each of the driving components includes two motors spaced apart on the fixed plate, and the output end of each motor is connected to the screw.
[0012] By adopting the above technical solution, the lateral movement of the threaded rod is automated, thereby improving the accuracy of the lateral movement of the threaded rod.
[0013] The present invention is further configured such that: a rotating handle is provided at the end of the threaded rod away from the hospital bed, and the rotating handle is also spaced apart on the housing.
[0014] By adopting the above technical solution, the movement effect of the threaded rod when moving up and down is improved, making it easier for workers to rotate the threaded rod and improving the up and down displacement effect of the pressure plate.
[0015] The present invention is further provided with an anti-slip groove on the rotating handle.
[0016] By adopting the above technical solution, difficulties in rotating the threaded rod can be prevented.
[0017] The present invention is further configured such that: two telescopic components are provided on the side of the guide plate facing the hospital bed, and the two telescopic components are respectively located on both sides of the patient passage; each telescopic component has a limiting plate for fixing the telescopic component at the end away from the guide plate; the telescopic component includes a pair of first telescopic rods spaced apart on the side of the guide plate facing the hospital bed for guiding the direction of the guide plate; the end of the first telescopic rod away from the guide plate is located on the side of the limiting plate away from the hospital bed; and the outer edge of the first telescopic rod is provided with a first spring for providing elastic support.
[0018] By adopting the above technical solution, the effect of vertical displacement of the fixed plate is improved.
[0019] The present invention is further configured such that: the limiting plate and the first telescopic rod are connected by a first limiting seat, and the first springs adjacent to the first telescopic rod are all located within the first limiting seat; the guide plate and the first telescopic rod are connected by a first limiting seat, and the first springs adjacent to the first telescopic rod are all located within the first limiting seat.
[0020] By adopting the above technical solution, the installation effect of the first spring and the first telescopic rod on the limiting plate and the guide plate is improved.
[0021] The present invention is further configured such that: a pair of fixed seats are spaced apart at one end of the housing away from the support assembly, and the pair of fixed seats are respectively located on both sides of the patient passage; a pair of second telescopic rods are spaced apart on the side of each fixed seat facing the limiting plate; a second spring for providing elastic support is also sleeved on the outer edge of the second telescopic rod, and the second spring is located between the fixed seat and the limiting plate; an anti-slip sleeve is provided at one end of each second telescopic rod away from the fixed seat; and a pull ring is provided at one end of each second telescopic rod that completely penetrates the fixed seat and extends to the outside of the housing.
[0022] By adopting the above technical solution, the clamping effect of the shell is improved.
[0023] The present invention is further configured such that each of the second telescopic rods is connected to the fixed seat via a second limiting seat, and the second spring is located within the second limiting seat.
[0024] By adopting the above technical solution, the difficulty for staff to fix the shell to the hospital bed is reduced.
[0025] In summary, the present invention has the following beneficial effects: First, the abdominal pressure device includes a housing for protecting the support assembly and the abdominal pressure assembly, preventing impurities from entering the support assembly and the abdominal pressure assembly, which could lead to malfunctions and reduced performance of the support assembly and the abdominal pressure assembly. Second, the abdominal pressure assembly includes an abdominal pressure plate for contacting the patient and a threaded rod for controlling the up-and-down movement of the abdominal pressure plate. By using the threaded rod to control the up-and-down movement of the abdominal pressure plate, the pressing effect of the abdominal pressure plate on the patient is improved, preventing ineffective pressing or the patient being unable to pass through the patient passage. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of the abdominal pressure device for radiotherapy in an embodiment of this utility model;
[0027] Figure 2 This is a top view of the abdominal pressure device for radiotherapy in an embodiment of this utility model;
[0028] Figure 3 This is a schematic diagram of the structure of the support component and the abdominal pressure component in an embodiment of this utility model;
[0029] Figure 4 This is a schematic diagram of the abdominal pressure assembly in an embodiment of this utility model.
[0030] In the diagram: 1. Housing; 2. Motor; 3. Slider; 4. Screw; 5. Threaded rod; 6. Rotating handle; 7. Second limiting component; 8. First limiting component; 9. Abdominal pressure plate; 10. Fixing plate; 11. Guide plate; 12. First spring; 13. First limiting seat; 14. Limiting plate; 15. Anti-slip sleeve; 16. Second spring; 17. Second limiting seat; 18. Fixing seat. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.
[0032] Example
[0033] like Figures 1-4 As shown, an abdominal pressure device for radiotherapy includes a housing 1, a support assembly, and an abdominal pressure assembly.
[0034] The end of the shell 1 facing the ground is clamped to the hospital bed, and the end of the shell 1 near the hospital bed is provided with a patient passage for the patient to pass through.
[0035] To improve the disassembly and assembly of housing 1 and facilitate the replacement of various components, housing 1 is formed by splicing several steel plates together, with two adjacent steel plates connected by bolts.
[0036] As a preferred embodiment, to improve the rigidity of the shell 1, the shell 1 is formed by splicing several steel plates together, and two adjacent steel plates are connected by welding.
[0037] The support assembly includes a guide plate 11 and a fixing plate 10. The guide plate 11 is slidably disposed at the end of the housing 1 away from the bed and is located inside the housing 1. The fixing plate 10 is disposed at intervals on the side of the guide plate 11 away from the bed. The fixing plate 10 is disposed inside the housing 1 and is connected to the housing 1 by welding. An abdominal pressure assembly is disposed on the fixing plate 10 that is movable up and down. The abdominal pressure assembly extends completely through the guide plate 11 into the patient passage on the side facing the bed.
[0038] The abdominal pressure assembly includes an abdominal pressure plate 9 disposed on the side of the guide plate 11 facing the bed. A threaded rod 5 for extending and retracting the abdominal pressure plate 9 is disposed on the side of the abdominal pressure plate 9 facing the guide plate 11. The end of the threaded rod 5 away from the abdominal pressure plate 9 extends outside the housing 1, and the threaded rod 5 is close to the guide plate 11.
[0039] The abdominal pressure plate 9 is used to press on the patient. However, to ensure that the abdominal pressure plate 9 is pressed correctly, the threaded rod 5 can be rotated to move the abdominal pressure plate 9 up and down, so as to avoid the abdominal pressure plate 9 being pressed lightly or excessively.
[0040] The guide plate 11 is provided with a first guide opening for guiding the lateral movement of the threaded rod 5. The guide plate 11 is also slidably provided with a first limiting member 8 on the side facing the fixed plate 10. The two ends of the first limiting member 8 abut against the housing 1 respectively. The first limiting member 8 and the threaded rod 5 are connected by threads. The first limiting member 8 is used to limit the threaded rod 5 to prevent the threaded rod 5 from spinning freely when it rotates.
[0041] The fixed plate 10 is provided with a second guide port for guiding the lateral movement of the threaded rod 5. The fixed plate 10 is also slidably provided with a second limiting member 7 on the side away from the guide plate 11. The two ends of the second limiting member 7 abut against the housing 1 respectively. The second limiting member 7 is connected to the threaded rod 5 by a thread. The second limiting member 7 is used to limit the threaded rod 5 to prevent the threaded rod 5 from spinning freely when it rotates. In order to prevent the threaded rod from driving the second limiting member 7 to move upward when the abdominal pressure plate abuts against the patient, the second limiting member 7 is located between the slider and the fixed plate.
[0042] The housing 1 is provided with a third guide port for guiding the lateral movement of the threaded rod 5, and is located at the end of the housing 1 away from the hospital bed.
[0043] An abdominal pressure plate 9 is slidably provided at the end of the first guide opening facing the hospital bed. A threaded rod 5 is detachably provided on the side of the abdominal pressure plate 9 away from the hospital bed. The end of the threaded rod 5 away from the abdominal pressure plate 9 completely passes through the guide plate 11, the fixing plate 10, the housing 1, the first limiting member 8, and the second limiting member 7. The threaded rod 5 is located in the first guide opening, the second guide opening, and the third guide opening. The threaded rod 5 is connected to the first limiting member 8 and the second limiting member 7 by threads. When the user rotates the rotating handle 6, the threaded rod 5 can move up and down within the guide plate 11, the fixing plate 10, and the housing 1.
[0044] A pair of driving components for driving screws 4 are fixedly installed on the side of the fixed plate 10 away from the guide plate 11. The two driving components are located on both sides of the threaded rod 5. A slider 3 is also provided on the threaded rod 5. The slider 3 is also slidably installed on the fixed plate 10. A pair of screws 4 are spaced apart on the slider 3. The two ends of each screw 4 are respectively installed on the two driving components.
[0045] Each drive component includes two motors 2 spaced apart on the fixed plate 10. The output end of each motor 2 is connected to the screw 4. The housing 1 is provided with switch buttons for all motors 2 and charging ports for all motors 2 to connect to the power supply.
[0046] The user turns the motor 2 on or off using a switch button. Turning on the motor 2 drives the screw 4 to rotate, which in turn drives the slider 3 to move laterally, thereby achieving the lateral position of the threaded rod 5 mounted on the slider 3.
[0047] The connection method between screw 4 and slider 3 is existing technology. This solution does not further improve motor 2, and therefore does not provide further explanation of this connection method.
[0048] Motor 2 is existing technology. This case does not make any further improvements to motor 2, nor does it make any further technological changes to motor 2.
[0049] A rotating handle 6 is provided at the end of the threaded rod 5 away from the hospital bed, and the rotating handle 6 is also spaced on the housing 1. The rotating handle 6 is also provided with anti-slip grooves.
[0050] Two telescopic components are provided on the side of the guide plate 11 facing the hospital bed, and the two telescopic components are located on both sides of the patient passage. Each telescopic component has a limiting plate 14 for fixing the telescopic component at the end away from the guide plate 11. The telescopic component includes a pair of first telescopic rods that are spaced apart on the side of the guide plate 11 facing the hospital bed for guiding the direction of the guide plate 11. The end of the first telescopic rod away from the guide plate 11 is located on the side of the limiting plate 14 away from the hospital bed. A first spring 12 for providing elastic support is provided on the outer edge of the first telescopic rod.
[0051] The limiting plate 14 is connected to the first telescopic rod by a first limiting seat 13, and the first springs 12 adjacent to the first telescopic rod are all located within the first limiting seat 13.
[0052] The guide plate 11 is connected to the first telescopic rod by a first limiting seat 13, and the first springs 12 adjacent to the first telescopic rod are all located within the first limiting seat 13.
[0053] A pair of fixed seats 18 are spaced apart at the end of the housing 1 away from the support assembly, and the pair of fixed seats 18 are located on both sides of the patient passage. A pair of second telescopic rods are spaced apart on the side of each fixed seat 18 facing the limiting plate 14. A second spring 16 for providing elastic support is also sleeved on the outer edge of the second telescopic rod, and the second spring 16 is located between the fixed seat 18 and the limiting plate 14. An anti-slip sleeve 15 is provided at the end of each second telescopic rod away from the fixed seat 18. A pull ring is also provided at the end of each second telescopic rod that extends completely through the fixed seat 18 to the outside of the housing 1.
[0054] Each second telescopic rod is connected to the fixed seat 18 via a second limiting seat 17, and the second spring 16 is located within the second limiting seat 17.
[0055] A pair of fixed seats 18 are spaced apart at the end of the housing 1 away from the support assembly, and the pair of fixed seats 18 are located on both sides of the patient passage. The housing 1 and the fixed seats 18 are connected by bolts. Each fixed seat 18 is spaced apart on the side facing the limiting plate 14 with a pair of second telescopic rods that can move within the fixed plate 10. A second spring 16 for providing elastic support is also sleeved on the outer edge of the second telescopic rod, and the second spring 16 is located between the fixed seat 18 and the limiting plate 14. An anti-slip sleeve 15 is provided at the end of each second telescopic rod away from the fixed seat 18, and a pull ring is provided at the end of each second telescopic rod that extends completely through the fixed seat 18 to the outside of the housing 1.
[0056] Each second telescopic rod is connected to the fixed seat 18 via a second limiting seat 17, and the second spring 16 is located inside the second limiting seat 17. The second spring 16 is fixedly installed at one end of the second limiting seat 17 facing the guide plate 11. The second limiting seat 17 and the fixed seat 18 are connected by threads, and the second telescopic rod can move up and down within the second limiting seat 17.
[0057] When the user needs the housing 1 to be clamped on the hospital bed, the user pulls the pull ring, which causes the second spring 16 of the second telescopic rod to compress until there is a position between the fixed seat 18 and the limiting plate 14 that is fully available for the clamped object to enter. The user then slowly releases the pull ring.
[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An abdominal pressure device for radiotherapy, characterized in that, include: The housing (1) is clamped to the hospital bed at one end facing the ground, and a patient passage for the patient to pass through is provided at the end of the housing (1) near the hospital bed; A support assembly, comprising a guide plate (11) and a fixing plate (10), wherein the guide plate (11) is disposed at one end of the housing (1) away from the bed and the guide plate (11) is located inside the housing (1), and a fixing plate (10) is provided at intervals on the side of the guide plate (11) away from the bed, and an abdominal pressure assembly is provided on the fixing plate (10), wherein the abdominal pressure assembly extends completely through the guide plate (11) into the patient passage on the side facing the bed; An abdominal pressure assembly includes an abdominal pressure plate (9) disposed on the side of the guide plate (11) facing the bed. The side of the abdominal pressure plate (9) facing the guide plate (11) is provided with a threaded rod (5) for extending and retracting the abdominal pressure plate (9). One end of the threaded rod (5) away from the abdominal pressure plate (9) extends outside the housing (1), and the threaded rod (5) is close to the guide plate (11).
2. The abdominal compression device of claim 1, wherein, The guide plate (11) is provided with a first guide opening for guiding, and a first limiting member (8) is also provided on the side of the guide plate (11) facing the fixed plate (10). The fixing plate (10) is provided with a second guide opening for guiding, and a second limiting member (7) is slidably provided on the side of the fixing plate (10) away from the guide plate (11). The housing (1) is provided with a third guide port for guidance, and is located at the end of the housing (1) away from the hospital bed. An abdominal pressure plate (9) is slidably provided at one end of the first guide opening facing the hospital bed. A threaded rod (5) is detachably provided on the side of the abdominal pressure plate (9) away from the hospital bed. The end of the threaded rod (5) away from the abdominal pressure plate (9) completely penetrates the guide plate (11), the fixing plate (10), the housing (1), the first limiting member (8), and the second limiting member (7). The threaded rod (5) is located in the first guide opening, the second guide opening, and the third guide opening. The threaded rod (5) is connected to the first limiting member (8) and the second limiting member (7) by threads.
3. The intra-abdominal pressure device of claim 2, wherein, On the side of the fixed plate (10) away from the guide plate (11), there is a pair of driving components for driving screws (4), and the two driving components are located on both sides of the threaded rod (5). A slider (3) is also provided on the threaded rod (5), and the slider (3) is slidably provided on the fixed plate (10). A pair of screws (4) are spaced apart on the slider (3), and the two ends of each screw (4) are respectively provided on the two driving components.
4. The intra-abdominal pressure device of claim 3, wherein, Each of the drive components includes two motors (2) spaced apart on the fixed plate (10), and the output end of each motor (2) is connected to the screw (4).
5. The abdominal compression device of any one of claims 1-4, wherein the inflatable bladder is configured to be inflated to a pressure of about 20 mm Hg to about 60 mm Hg. A rotating handle (6) is provided at the end of the thread away from the bed, and the rotating handle (6) is also spaced on the housing (1).
6. The intra-abdominal pressure device of claim 5, wherein, The rotating handle (6) is also provided with anti-slip grooves.
7. The intra-abdominal pressure device of claim 1, wherein, Two telescopic components are provided on the side of the guide plate (11) facing the hospital bed, and the two telescopic components are respectively located on both sides of the patient passage. Each telescopic component has a limiting plate (14) for fixing the telescopic component at the end away from the guide plate (11). The telescopic component includes a pair of first telescopic rods for guiding the direction of the guide plate (11) on the side of the guide plate (11) facing the hospital bed, and the end of the first telescopic rod away from the guide plate (11) is located on the side of the limiting plate (14) away from the hospital bed. The outer edge of the first telescopic rod is provided with a first spring (12) for providing elastic support.
8. The intra-abdominal pressure device of claim 7, wherein, The limiting plate (14) is connected to the first telescopic rod by a first limiting seat (13), and the first springs (12) adjacent to the first telescopic rod are all located within the first limiting seat (13). The guide plate (11) is connected to the first telescopic rod by a first limiting seat (13), and the first springs (12) adjacent to the first telescopic rod are all located within the first limiting seat (13).
9. The intra-abdominal pressure device of claim 7, wherein, A pair of fixed seats (18) are spaced apart at one end of the housing (1) away from the support assembly, and the pair of fixed seats (18) are respectively located on both sides of the patient passage. A pair of second telescopic rods are spaced apart on the side of each fixed seat (18) facing the limiting plate (14). A second spring (16) for providing elastic support is also sleeved on the outer edge of the second telescopic rod, and the second spring (16) is located between the fixed seat (18) and the limiting plate (14). An anti-slip sleeve (15) is provided at one end of each second telescopic rod away from the fixed seat (18), and a pull ring is provided at the end of each second telescopic rod that completely penetrates the fixed seat (18) and extends to the outside of the housing (1).
10. The abdominal pressure device for radiotherapy according to claim 9, characterized in that, Each of the second telescopic rods is connected to the fixed seat (18) via a second limiting seat (17), and the second spring (16) is located within the second limiting seat (17).