Radiotherapy positioning film

Abstract

The utility model relates to radiotherapy positioning membrane technical field especially is a radiotherapy positioning membrane, including the membrane piece, the both sides fixed connection of membrane piece have the positioning fiber cloth piece, the top of positioning fiber cloth piece is provided with the roof, the bottom of roof is provided with the bottom plate, the inboard fixed connection of bottom plate has the screw bush, the inboard screw thread connection of screw bush has the positioning screw rod, the top fixed connection of positioning screw rod has the torsional block, the inboard of roof is set up with the screw hole that screw bush is one -to -one arrangement, in the utility model, the structure that setting up the positioning fiber cloth piece, screw hole and the edge locking ring etc.

Description

Technical Field

[0001] This utility model relates to the field of radiotherapy positioning membrane technology, specifically a radiotherapy positioning membrane. Background Technology

[0002] A radiotherapy positioning membrane is a special plastic product used in radiotherapy. It is mainly used to fix the patient's body parts to ensure the accuracy and repeatability of radiotherapy. The use of a radiotherapy positioning membrane is an important part of the pre-radiotherapy preparation. It helps to determine the specific location and irradiation range of the radiotherapy, reduce damage to surrounding tissues and sequelae. At the same time, it can also protect surrounding normal tissues from radiation damage, reduce the side effects of radiotherapy, and improve the treatment effect.

[0003] Radiotherapy positioning membranes typically consist of a membrane and a fixing frame. In common radiotherapy positioning membranes, the fixing frame is usually fixed at the edge of the membrane. When the membrane is damaged, it is inconvenient to replace the membrane separately, which increases the cost of use. Therefore, a radiotherapy positioning membrane is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a radiotherapy positioning membrane to solve the problem that it is inconvenient to replace the membrane individually when the membrane in the radiotherapy positioning membrane is damaged.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A radiotherapy positioning membrane includes a membrane sheet, with positioning fiber cloth sheets fixedly connected to both sides of the membrane sheet. A top plate is provided on the top of the positioning fiber cloth sheet, and a bottom plate is provided at the bottom of the top plate. Evenly spaced threaded sleeves are fixedly connected to the inner side of the bottom plate. A positioning screw is threadedly connected to the inner side of the threaded sleeves. A torsion block is fixedly connected to the top of the positioning screw. A screw hole corresponding to each threaded sleeve is opened on the inner side of the top plate. A locking ring corresponding to each screw hole is fixedly connected to the inner side of the positioning fiber cloth sheet. An elastic sleeve is fixedly connected to the inner side of the locking ring.

[0007] Preferably, the positioning screw passes through the screw hole and the positioning screw passes through the locking ring.

[0008] Preferably, the positioning screw is fitted with the elastic sleeve, the side of the elastic sleeve that is fitted with the positioning screw is smooth, and the inner side of the elastic sleeve has a plurality of through holes that are evenly arranged.

[0009] Preferably, both the top plate and the bottom plate are fixedly connected to a silicone pad that fits in contact with the human body, and the silicone pad and the positioning fiber cloth are fitted together.

[0010] Preferably, a handle is fixedly connected to one side of the torsion block, and an anti-slip sleeve is fixedly connected to the outside of the handle.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, a structure consisting of a positioning fiber cloth, a top plate, a bottom plate, a screw sleeve, a positioning screw, a screw hole, and a locking ring is used. The screw passes sequentially through the screw hole in the top plate and the locking ring fixed in the positioning fiber cloth, and the screw is threadedly connected to the screw sleeve in the bottom plate. This allows for the detachable positioning of the positioning fiber cloth. The positioning fiber cloth is fixedly connected to the membrane, thus enabling the detachable installation of the membrane. This solves the problem that it is inconvenient to replace the membrane individually when it is damaged in a radiotherapy positioning membrane. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the base plate of this utility model;

[0015] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A;

[0016] Figure 4 This is a schematic diagram of the installation structure of the positioning fiber cloth sheet of this utility model.

[0017] In the diagram: 1. Diaphragm; 2. Positioning fiber cloth sheet; 3. Top plate; 4. Bottom plate; 5. Screw sleeve; 6. Positioning screw; 7. Torque block; 8. Screw hole; 9. Locking ring; 10. Elastic sleeve; 11. Through hole; 12. Handle; 13. Anti-slip sleeve; 14. Silicone pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0021] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0022] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A radiotherapy positioning membrane includes a membrane 1, with positioning fiber cloth sheets 2 fixedly connected to both sides of the membrane 1. A top plate 3 is provided on the top of the positioning fiber cloth sheet 2, and a bottom plate 4 is provided at the bottom of the top plate 3. Screw sleeves 5 are fixedly connected to the inner side of the bottom plate 4 in a uniform arrangement. A positioning screw 6 is threadedly connected to the inner side of the screw sleeve 5. A torsion block 7 is fixedly connected to the top of the positioning screw 6. Screw holes 8 are provided on the inner side of the top plate 3, corresponding one-to-one with the screw sleeves 5. Locking rings 9 are fixedly connected to the inner side of the positioning fiber cloth sheet 2, corresponding one-to-one with the screw holes 8. An elastic sleeve 10 is fixedly connected to the inner side of the locking ring 9. This arrangement allows the membrane 1 to be disassembled individually.

[0026] The positioning screw 6 passes through the screw hole 8 and the locking ring 9. This arrangement allows the positioning screw 6 to position the top plate 3, the bottom plate 4, and the positioning fiber cloth 2. The positioning screw 6 is in contact with the elastic sleeve 10. The side of the elastic sleeve 10 that is in contact with the positioning screw 6 is smooth. The inner side of the elastic sleeve 10 has several evenly arranged through holes 11. This arrangement allows the elastic sleeve 10 to protect the positioning screw 6 and the locking ring 9. The through holes 11 can enhance the range of elastic deformation of the elastic sleeve 10. The outer sides of the top plate 3 and the bottom plate 4 are fixedly connected to silicone pads 14 that fit in contact with the human body. The silicone pads 14 and the positioning fiber cloth 2 are in contact with each other. This arrangement allows the silicone pads 14 to provide a certain degree of protection to the human body. A handle 12 is fixedly connected to one side of the torsion block 7. An anti-slip sleeve 13 is fixedly connected to the outer side of the handle 12. This arrangement makes it easier to rotate the torsion block 7.

[0027] Workflow: When determining the specific location and irradiation range of a patient using a radiotherapy positioning membrane, the membrane 1 is softened under specified conditions. The softened membrane 1 is then quickly applied to the target area. The top plate 3 and bottom plate 4, positioned vertically, are grouped together. Both groups of top plates 3 and bottom plates 4 are simultaneously pressed down with both hands and pulled to the left and right sides to ensure complete contact between the membrane 1 and the area to be examined. The top plate 3 and bottom plate 4 are then positioned on the CT scanning table using a specific device. The silicone pad 14 will then come into contact with the patient, allowing for the application of the radiotherapy positioning membrane. After a certain degree of protection and natural cooling for an appropriate period, once the membrane 1 has hardened and formed a stable support structure, multiple "dashed cross lines" are drawn on the membrane 1 or the patient's skin using a special pen as key positioning markers for radiotherapy repositioning. The patient, along with the positioning membrane, is moved into a CT scanner for inspection. The positioning lines are aligned using a laser light, and the image is scanned and transmitted to the workstation. The doctor confirms the target area range and planning accuracy. After the inspection is completed, the membrane 1 can be removed. When the membrane 1 is damaged and needs to be replaced, the handle 12, which has an anti-slip sleeve 13 fixed on the outside, is rotated. This causes the handle 12 to rotate the torsion block 7, which in turn rotates the positioning screw 6. The positioning screw 6 then spirals with the screw sleeve 5, gradually disengaging from the screw sleeve 5 in the base plate 4, the locking ring 9 fixed in the positioning fiber cloth 2, and the screw hole 8 in the top plate 3. An elastic sleeve 10 is fixed inside the locking ring 9, protecting the positioning screw 6 and the locking ring 9. The side of the elastic sleeve 10 that contacts the positioning screw 6 is smooth, ensuring that the elastic sleeve 10 does not affect the rotation of the positioning screw 6. The through hole 11 inside the elastic sleeve 10 allows... The elastic sleeve 10 is enhanced to increase the range of elastic deformation, thus facilitating the movement of the positioning screw 6. When the screw is completely disengaged from the screw hole 8, the positioning screw 6 removes the restriction on the positioning fiber cloth 2, top plate 3, and bottom plate 4, thereby enabling the disassembly of the positioning fiber cloth 2. The positioning fiber cloth 2 is fixedly connected to the diaphragm 1, thereby enabling the disassembly of the diaphragm 1. The reverse operation enables the installation of the positioning fiber cloth 2 and the diaphragm 1. The locking ring 9 can reinforce the positioning fiber cloth 2 and reduce the wear of the positioning fiber cloth 2 caused by repeated stretching or friction.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A radiotherapy positioning membrane, comprising a membrane sheet (1), characterized in that: Positioning fiber cloth pieces (2) are fixedly connected to both sides of the diaphragm (1). A top plate (3) is provided on the top of the positioning fiber cloth piece (2). A bottom plate (4) is provided at the bottom of the top plate (3). A uniformly arranged threaded sleeve (5) is fixedly connected to the inner side of the bottom plate (4). A positioning screw (6) is threadedly connected to the inner side of the threaded sleeve (5). A torsion block (7) is fixedly connected to the top of the positioning screw (6). A screw hole (8) is opened on the inner side of the top plate (3) and is arranged in a one-to-one correspondence with the threaded sleeve (5). A locking ring (9) is fixedly connected to the inner side of the positioning fiber cloth piece (2) and is arranged in a one-to-one correspondence with the screw hole (8). An elastic sleeve (10) is fixedly connected to the inner side of the locking ring (9).

2. The radiotherapy positioning membrane according to claim 1, characterized in that: The positioning screw (6) passes through the screw hole (8) and the positioning screw (6) passes through the locking ring (9).

3. The radiotherapy positioning membrane according to claim 1, characterized in that: The positioning screw (6) is in contact with the elastic sleeve (10). The side of the elastic sleeve (10) that is in contact with the positioning screw (6) is smooth. The inner side of the elastic sleeve (10) has several through holes (11) that are evenly arranged.

4. The radiotherapy positioning membrane according to claim 1, characterized in that: The outer sides of the top plate (3) and the bottom plate (4) are fixedly connected with silicone pads (14) that fit the human body. The silicone pads (14) and the positioning fiber cloth (2) are fitted together.

5. The radiotherapy positioning membrane according to claim 1, characterized in that: A handle (12) is fixedly connected to one side of the twist block (7), and an anti-slip sleeve (13) is fixedly connected to the outside of the handle (12).

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