Gynecological tumor intracavity radiotherapy protection device

Abstract

The invention relates to the field of medical auxiliary instruments, in particular to a gynecological tumor intracavity radiotherapy protection device which comprises a source applicator, a connector is arranged at the right side end of the source applicator, a source application head is arranged at the side end of the source applicator, an extension frame is arranged on the source applicator in a sliding mode, an air bag is arranged at the left side end of the extension frame, and an air outlet assembly is arranged on the extension frame. When the application source reaches the focus position, the extension frame is pulled to adjust the position of the air bag, so that the air bag can cover and block the application source, the situation that the application source is not completely blocked is prevented, then the air outlet assembly is controlled to inflate the air bag, and in the inflation process, the air bag is inflated. The visual assembly is operated through the control line to observe the wrinkle condition in the air bag, so that the servo motor is controlled to drive the rotating wheel to rotate according to the wrinkle condition, the air outlet assembly moves, and when the air outlet port of the air outlet assembly can be aligned with the wrinkle position and inflated, the situation that the protection effect is weakened due to incomplete expansion of the air bag is avoided.

Description

Technical Field

[0001] The invention relates to the field of medical auxiliary equipment, and in particular to a protective device for intracavitary radiotherapy of gynecological tumors. Background Art

[0002] Intracavitary radiotherapy for gynecological tumors, also known as brachytherapy or afterloading therapy, is a method of treatment in which a radiation source is placed directly into or close to the tumor site. This method can provide high doses of radiation while minimizing the impact on surrounding healthy tissue. In order to further prevent the surrounding healthy tissue from being affected, the existing technology generally uses an airbag to shield the source to reduce the impact of radiation. However, in the existing device, the positions of the airbag and the source are relatively fixed. When entering the patient's body for treatment, the positions of the airbag and the source cannot be flexibly adjusted accordingly, which will result in incomplete blocking and further affect the surrounding healthy tissue. At the same time, because the airbag needs to enter the body with the device, the friction of the tissue in the body may cause wrinkles on the surface of the airbag, which in turn makes the airbag incompletely inflated, resulting in a weakened protective effect.

[0003] Therefore, a protective device for intracavitary radiotherapy of gynecological tumors is now developed in response to the above problems. Summary of the invention

[0004] In order to overcome the disadvantage that the positions of the airbag and the application source of the existing device are relatively fixed, and when entering the patient's body for treatment, the positions of the airbag and the application source cannot be flexibly adjusted accordingly, which will lead to incomplete blocking and further affect the surrounding healthy tissues. At the same time, since the airbag needs to enter the body together with the device, the friction of the body's tissues may cause wrinkles on the surface of the airbag, thereby causing incomplete expansion of the airbag and weakening the protective effect, the present invention provides a gynecological tumor intracavitary radiotherapy protective device.

[0005] The technical solution of the present invention is: a protective device for intracavitary radiotherapy of gynecological tumors, comprising:

[0006] Source applicator;

[0007] A connector, the connector being arranged at the right end of the applicator;

[0008] An applicator head, wherein the applicator head is arranged at the left end;

[0009] An extension frame, the extension frame is slidably arranged on the source applicator;

[0010] An airbag, the airbag being arranged at the left end of the extension frame, and the airbag being used to shield and protect the application source;

[0011] An air outlet component is arranged on the extension frame, and is used to inflate the airbag.

[0012] Furthermore, it also includes a shell, which is arranged on the upper right side of the extension frame, the servo motor is installed on the shell, the servo motor output shaft is arranged to face forward, the rotating wheel is connected to the servo motor output shaft, and a plurality of grooves are opened on the air outlet assembly.

[0013] Furthermore, it also includes a visual component, which is arranged at the left end of the air outlet component. The visual component is used to assist medical personnel in observing the wrinkles inside the airbag. The control line is connected to the right side of the visual component, and the control line is in contact with the upper part of the air outlet component.

[0014] Furthermore, it also includes a connecting rod, the connecting rod is connected to the right side of the extension frame, and the toggle frame is connected between the connecting rods.

[0015] Furthermore, it also includes a rotating rod, which is rotatably arranged on the upper right side of the extension frame. An extrusion piece is installed on the rotating rod. The extrusion piece is used to actively extrude and isolate the air outlet component. A toggle rod is connected to the top of the extrusion piece.

[0016] Furthermore, it also includes a scale member, which is arranged on the front side of the applicator.

[0017] Furthermore, the rotating wheels are provided with protrusions, and the protrusions can be engaged with the corresponding grooves.

[0018] Furthermore, a power-assisting paddle is provided at the bottom of the shifting frame.

[0019] Furthermore, a spherical booster block is installed on each of the toggle rods.

[0020] Furthermore, a viewing point is provided on the front side of the extension frame, and the viewing point cooperates with the scale member to determine the movement length of the airbag.

[0021] By adopting the above technical solution, the beneficial effects of the present invention are:

[0022] 1. When the source of application reaches the lesion, pull the extension frame to adjust the position of the airbag, so that the airbag can cover and block the source of application to prevent the source of application from being incompletely blocked. Then control the air outlet component to inflate the airbag. During the inflation process, operate the visual component through the control line to observe the wrinkles inside the airbag, and then control the servo motor to drive the rotating wheel to rotate according to the wrinkle conditions, so that the air outlet component moves. When the air outlet port of the air outlet component can be aligned with the wrinkle position and inflated, it can avoid incomplete expansion of the airbag and weaken the protection effect.

[0023] 2. When inflating the airbag through the air outlet component, medical staff can actively push the toggle lever to allow the extrusion part to quickly squeeze and block the pipeline of the air outlet component, so that the gas cannot continue to enter the airbag, thereby improving the flexibility of operation. At the same time, it also avoids the inability to quickly stop the gas supply due to abnormalities in the air outlet component, thereby improving operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention.

[0026] Figure 3 It is a schematic diagram of a first partial cross-sectional three-dimensional structure of the present invention.

[0027] Figure 4 It is a schematic diagram of a first partial three-dimensional structure of the present invention.

[0028] Figure 5 It is a schematic diagram of a second partial cross-sectional three-dimensional structure of the present invention.

[0029] Figure 6 It is a schematic diagram of a third partial cross-sectional three-dimensional structure of the present invention.

[0030] Figure 7 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0031] Figure 8 It is a schematic diagram of a third partial three-dimensional structure of the present invention.

[0032] Figure numbers: 1_source applicator, 2_connector, 3_source applicator, 4_airbag, 5_air outlet component, 6_extension frame, 7_housing, 8_servo motor, 9_rotating wheel, 10_groove, 11_visual component, 12_control line, 13_connecting rod, 14_sliding frame, 15_rotating rod, 16_extrusion piece, 17_sliding rod, 18_scale piece. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] Example 1

[0035] A protective device for intracavitary radiotherapy of gynecological tumors, such as Figure 1-Figure 8As shown, it includes a source applicator 1, a joint 2 is provided at the right end of the source applicator 1, a source head 3 is provided at the side end of the source applicator 1, an extension frame 6 is slidably provided on the source applicator 1, an air bag 4 is provided at the left end of the extension frame 6, the air bag 4 is used to shield and protect the source head 3, and an air outlet component 5 is provided on the extension frame 6, and the air outlet component 5 is used to inflate the air bag 4.

[0036] It also includes a shell 7, a shell 7 is arranged on the upper right side of the extension frame 6, a servo motor 8 is installed on the shell 7, the output shaft of the servo motor 8 is arranged to face forward, a rotating wheel 9 is connected to the output shaft of the servo motor 8, a plurality of grooves 10 are opened on the air outlet component 5, and the rotating wheel 9 has protrusions, which can be engaged with the corresponding grooves 10.

[0037] It also includes a visual component 11, which is arranged at the left end of the air outlet component 5. The visual component 11 is used to assist medical personnel in observing the wrinkles inside the airbag 4. A control line 12 is connected to the right side of the visual component 11, and the control line 12 is fitted to the upper part of the air outlet component 5.

[0038] It should be noted that, during radiotherapy for gynecological tumors, in order to prevent the radioactive rays generated by the applicator 3 from causing damage to other non-lesion sites, the present device can be used together with the applicator 3 to block the applicator 3. First, the patient's lesion location is determined, and then the device is inserted into the patient's body. When the applicator 3 reaches the lesion location, the extension frame 6 is pulled to adjust the position of the airbag 4, so that the airbag 4 can cover and block the applicator 3 to prevent the applicator 3 from being incompletely blocked. Then, the air outlet component 5 is controlled to inflate the airbag 4. During the inflation process, the visual component 11 is operated by the control line 12 to observe the wrinkles inside the airbag 4, so that the servo motor 8 is controlled to drive the rotating wheel 9 to rotate according to the wrinkle situation, so that the air outlet component 5 moves. When the air outlet port of the air outlet component 5 can be aligned with the wrinkle position and inflated, incomplete expansion of the airbag 4 is avoided, thereby weakening the protective effect.

[0039] Example 2

[0040] On the basis of Example 1, a connecting rod 13 is further included. The right side of the extension frame 6 is connected to a front-to-back symmetrical connecting rod 13. A toggle frame 14 is connected between the connecting rods 13. The bottom of the toggle frame 14 is provided with a power-assisting paddle.

[0041] It should be noted that when the extension frame 6 needs to be pulled and controlled, it is troublesome to pull it in actual operation because the extension frame 6 is too close to the source applicator 1. At this time, the power-assisting paddle at the bottom of the toggle frame 14 can be pulled to make the toggle frame 14 pull the extension frame 6 to move, so that the extension frame 6 can quickly drive the airbag 4 to adjust its position, thereby improving the convenience of operation.

[0042] It also includes a rotating rod 15. Two rotating rods 15 are rotatably arranged on the right upper part of the extension frame 6. Extrusion members 16 are installed on the rotating rods 15. The extrusion members 16 are used to actively extrude and isolate the air outlet component 5. The tops of the extrusion members 16 are connected to toggle rods 17, and spherical booster blocks are installed on the toggle rods 17.

[0043] It should be noted that when the airbag 4 is inflated through the air outlet component 5, medical staff can actively push the toggle rod 17 to make the extrusion member 16 quickly squeeze and block the pipeline of the air outlet component 5, so that the gas cannot continue to enter the airbag 4, thereby improving the flexibility of operation. At the same time, it also avoids the inability to quickly stop the air supply due to an abnormality of the air outlet component 5, thereby improving the safety of operation.

[0044] It also includes a scale piece 18 . The front side of the source applicator 1 is provided with the scale piece 18 . The front side of the extension frame 6 is provided with an inspection point. The inspection point and the scale piece 18 cooperate to judge the movement length of the airbag 4 .

[0045] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A protective device for intracavitary radiotherapy of gynecological tumors, characterized in that: Included are: Source applicator (1); A connector (2), the connector (2) being arranged at the right end of the source applicator (1); An applicator head (3), wherein the applicator (1) of the applicator head (3) is arranged at the left end; An extension frame (6), the extension frame (6) being slidably arranged on the source applicator (1); An airbag (4), the airbag (4) being arranged at the left end of the extension frame (6), the airbag (4) being used to shield and protect the application source (3); An air outlet component (5), the air outlet component (5) is arranged on the extension frame (6), and the air outlet component (5) is used to inflate the airbag (4).

2. A gynecological tumor intracavitary radiotherapy protection device according to claim 1, characterized in that: It also includes a shell (7), the shell (7) is arranged on the upper right side of the extension frame (6), the servo motor (8) is installed on the shell (7), the output shaft of the servo motor (8) is arranged to face forward, the rotating wheel (9) is connected to the output shaft of the servo motor (8), and the air outlet component (5) is provided with a plurality of grooves (10).

3. A gynecological tumor intracavitary radiotherapy protection device according to claim 2, characterized in that: The air bag (4) further comprises a visual component (11), wherein the visual component (11) is arranged at the left end of the air outlet component (5), and the visual component (11) is used to assist medical personnel in observing the wrinkles inside the air bag (4). A control line (12) is connected to the right side of the visual component (11), and the control line (12) is in contact with the upper part of the air outlet component (5).

4. A gynecological tumor intracavitary radiotherapy protection device according to claim 3, characterized in that: It also includes a connecting rod (13), wherein the connecting rod (13) is connected to the right side of the extension frame (6), and the toggle frame (14) is connected between the connecting rods (13).

5. The protective device for intracavitary radiotherapy of gynecological tumors according to claim 4, characterized in that: It also includes a rotating rod (15), which is rotatably arranged on the upper right side of the extension frame (6), and an extrusion member (16) is installed on the rotating rod (15). The extrusion member (16) is used to actively extrude and isolate the air outlet component (5), and the top of the extrusion member (16) is connected to a toggle rod (17).

6. The protective device for intracavitary radiotherapy of gynecological tumors according to claim 5, characterized in that: It also includes a scale member (18), which is arranged on the front side of the source applicator (1).

7. The protective device for intracavitary radiotherapy of gynecological tumors according to claim 2, characterized in that: The rotating wheels (9) are provided with protrusions, and the protrusions are capable of being engaged with the corresponding grooves (10).

8. The protective device for intracavitary radiotherapy of gynecological tumors according to claim 4, characterized in that: The bottom of the shifting frame (14) is provided with a power-assisting shifting piece.

9. The protective device for intracavitary radiotherapy of gynecological tumors according to claim 5, characterized in that: The toggle rods (17) are all provided with spherical booster blocks.

10. The protective device for intracavitary radiotherapy of gynecological tumors according to claim 6, characterized in that: The front side of the extension frame (6) is provided with an inspection point, and the inspection point cooperates with the scale member (18) to judge the movement length of the airbag (4).

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