Novel laser system for treatment room

Abstract

The invention discloses a novel laser system for a treatment room, and relates to the technical field of radiotherapy. The treatment room comprises a treatment room cabin body, a proton therapeutic instrument installed in the treatment room cabin body and used for treating a human tumor focus part, and a treatment bed installed in the treatment room cabin body, and a reflector assembly and a laser positioning lamp matched with the reflector assembly to project a light beam to the human tumor focus part are installed on the inner side wall of the treatment room cabin body. A coronal plane, a sagittal plane and a cross section on the treatment bed are converged on an isocenter, and the reflector assembly receives light beams projected by the laser positioning lamp and coincides with the isocenter. The system has the effects of accurately positioning the tumor focus part of the human body and facilitating accurate and effective treatment.

Description

Technical Field

[0001] The present application relates to the field of radiotherapy technology, and in particular to a novel laser system for use in treatment rooms. Background Art

[0002] With the continuous advancement of science and technology, a variety of advanced treatment devices have emerged, bringing new hope to cancer patients. As a highly efficient and precise tumor treatment device, proton therapy plays a vital role in modern medicine. It leverages the unique physical properties of proton beams to precisely irradiate tumor lesions, effectively killing cancer cells while minimizing damage to surrounding normal tissue, significantly improving the effectiveness of tumor treatment and the patient's quality of life. However, when using proton therapy, accurate localization of the tumor lesion is crucial, as it directly impacts the accuracy and effectiveness of treatment.

[0003] In previous treatments, adjustments to the bed were often necessary to ensure the beam emitted by the treatment head could accurately target the lesion. The general approach is to use a laser lamp to illuminate three perpendicular surfaces, aligning the intersection of these three surfaces with the patient's lesion to determine the isocenter. Initially, at least three laser lamps were installed in the treatment room, irradiating from different directions to ensure coverage of the entire treatment area. Later, an improved method emerged. By installing mirrors on the walls and utilizing the mirror's reflection principle, the beam projected by a laser lamp installed in an empty area of ​​the treatment room was reflected, achieving full-range three-sided irradiation and reducing the number of laser lamps required.

[0004] However, the existing positioning methods have obvious defects. In actual use, patients may wear masks or have wrinkles on their clothes, and the laser light cannot penetrate these obstacles, resulting in positioning blind spots. This makes it easy for inaccuracies or deviations to occur when searching for the isocenter point through the laser light, which in turn affects the proton therapy device's precise positioning of the tumor lesion and the treatment effect. Summary of the Invention

[0005] In order to improve the problem of laser light being unable to penetrate obstacles when treating tumor lesions in the human body, resulting in positioning blind spots, in some cases when patients wear masks or have wrinkled clothes. This application provides a new laser system for use in treatment rooms.

[0006] This application provides a novel laser system for treatment rooms that adopts the following technical solutions: A new laser system for a treatment room includes a treatment room cabin, a proton therapy device installed in the treatment room cabin for treating human tumor lesions, a treatment bed installed in the treatment room cabin, a reflector assembly installed on the inner wall of the treatment room cabin, and a laser positioning lamp that cooperates with the reflector assembly to project a light beam to the human tumor lesion. The treatment bed is formed with a coronal plane, a sagittal plane and a transverse plane for locating the human tumor. The coronal plane, sagittal plane and transverse plane converge at the isocenter. The light beam projected by the laser positioning lamp received by the reflector assembly coincides with the isocenter.

[0007] By adopting the above technical solution, by using a reflector assembly to receive the light beam projected by the laser positioning light and make it coincide with the isocenter, all-round irradiation is achieved, which solves the problem of the laser positioning light encountering an obstruction and causing the center point to be unable to be found, resulting in inaccurate or deviated treatment position. The isocenter of the human tumor lesion can be accurately found, which facilitates the coincidence of the isocenter points referenced by the proton therapy device and the treatment bed, thereby improving the positioning accuracy of the human tumor lesion.

[0008] Optionally, the reflector assembly includes a transverse reflector parallel to the coronal plane, a longitudinal reflector parallel to the sagittal plane, and a vertical reflector parallel to the cross-sectional plane. A groove for embedding the transverse reflector, the longitudinal reflector, and the vertical reflector is provided on the inner wall of the treatment room cabin. The vertical reflector and the transverse reflector are both fixed in the groove, and an adjustment mechanism for adjusting the angle of the longitudinal reflector is provided between the longitudinal reflector and the groove.

[0009] By adopting the above technical solution, horizontal, longitudinal and vertical reflectors parallel to different surfaces can be used in conjunction with the laser positioning light to achieve all-round three-surface irradiation to find the isocenter plane; the reflectors are embedded in the grooves on the inner wall of the treatment room cabin, which can reasonably arrange the reflectors; the vertical and horizontal reflectors are fixed, and the longitudinal reflector is provided with an adjustment mechanism, which can conveniently adjust the angle of the longitudinal reflector, and then adjust the direction of the reflected light beam, to ensure that the laser positioning light beam received by the reflector assembly coincides with the isocenter point, thereby improving the accuracy of locating the lesion site.

[0010] Optionally, the projection coverage area of ​​the laser positioning light is fan-shaped, and the opening and closing angle formed by the projection of the laser positioning light is a fixed angle.

[0011] By adopting the above technical solution, the new laser system is equipped with a treatment room cabin, a proton therapy device, a treatment bed, a reflector assembly and a laser positioning light. The coronal plane, sagittal plane and transverse section of the treatment bed converge at the isocenter, and the reflector assembly receives the projected light beam of the laser positioning light and coincides with the isocenter. On this basis, the projection coverage area of ​​the laser positioning light is fan-shaped and the opening and closing angle formed by the projection is a fixed angle, which can effectively expand the irradiation range of the laser light and achieve large-area positioning. The fixed angle makes the laser projection stable and consistent, which is conducive to the precise positioning of tumor lesions in the human body.

[0012] Optionally, the width of the grooves is 1-3 cm, and the spacing between the grooves is equal to the width of each reflector.

[0013] By adopting the above technical solution, the new laser system for the treatment room includes a treatment room cabin, a proton therapy device, a treatment bed, a reflector assembly and a laser positioning light. The reflector assembly receives the laser positioning light beam and coincides with the isocenter. The reflector assembly includes transverse, longitudinal and vertical reflectors, and the vertical and transverse reflectors are fixed in the groove. The longitudinal reflector has an adjustment mechanism. On this basis, the groove width is set to 1-3cm, and the groove spacing is equal to the width of each reflector. This is conducive to the rational use of the space in the treatment room cabin for embedded installation of the reflectors, ensuring the installation stability and standardization of the reflectors, thereby enabling the reflector assembly to better receive and reflect the laser positioning light beam, accurately achieving all-round three-sided irradiation to determine the isocenter.

[0014] Optionally, the adjustment mechanism includes a first electric push rod and a second electric push rod installed in the groove, the first electric push rod and the second electric push rod form an obtuse angle or a right angle, and the mirror and the first electric push rod / the second electric push rod form an acute angle.

[0015] By adopting the above technical solution, an adjustment mechanism is composed of a first electric push rod and a second electric push rod and is installed in the groove, and the two are at an obtuse angle or a right angle, and the mirror is at an acute angle to one of the electric push rods. The angle of the longitudinal reflector can be accurately adjusted, so that the reflector assembly can better receive the light beam projected by the laser positioning lamp and coincide with the isocenter, thereby solving the problem of inaccurate or deviation in the isocenter search in the prior art and improving the accuracy of the proton therapy device in locating the tumor lesion in the human body.

[0016] Optionally, the number of the laser positioning light is one.

[0017] By adopting the above technical solution, only one laser positioning lamp is set up in combination with a reflector assembly. By utilizing the reflection principle of the reflector, all-round three-sided irradiation can be achieved to locate the isocenter of the human tumor lesion, avoiding the need to set up multiple laser lamps and saving costs.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. The reflector assembly receives the beam projected by the laser positioning lamp and aligns it with the isocenter, achieving all-round irradiation on three sides. This avoids positioning blind spots caused by patients wearing masks or wrinkled clothes, ensures accurate isocenter location, and improves the proton therapy device's positioning accuracy and treatment effect on tumor lesions. 2. Only one laser positioning light is needed, and the reflector assembly is used to reflect its light beam to achieve light azimuth illumination, which reduces the number of laser positioning lights and effectively reduces costs; 3. The projection cover surface of the laser positioning light is fan-shaped and the opening and closing angle formed by the projection is a fixed angle, which can better locate the lesion site. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram showing the overall structure of this application.

[0021] Figure 2 This is a cross-sectional view (top view) of this application.

[0022] Figure 3 This is a schematic diagram showing different adjustment angles of the adjustment mechanism of this application.

[0023] Figure 4 This is a schematic diagram showing the partial structure inside the treatment room cabin of this application.

[0024] Figure numerals: 1. Treatment room cabin; 2. Proton therapy device; 3. Treatment bed; 4. Reflector assembly; 5. Laser positioning light; 41. Horizontal reflector; 42. Longitudinal reflector; 43. Vertical reflector; 6. Groove; 7. Adjustment mechanism; 71. First electric push rod; 72. Second electric push rod. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-4 This application is described in further detail.

[0026] The embodiments of the present application disclose a novel laser system for use in treatment rooms.

[0027] Reference Figure 1 and Figure 2As shown, the system includes a treatment room cabin 1, a proton therapy device 2, a treatment bed 3, a reflector assembly 4, and a laser positioning light 5. The proton therapy device 2 is installed in the treatment room cabin 1 for treating human tumor lesions. The treatment bed 3 is also installed in the treatment room cabin 1. The reflector assembly 4 is installed on the inner wall of the treatment room cabin 1. The laser positioning light 5 cooperates with the reflector assembly 4 to project a light beam onto the human tumor lesion. The treatment bed 3 forms a coronal plane, a sagittal plane, and a transverse plane, and these three planes converge at the isocenter. The reflector assembly 4 receives the light beam projected by the laser positioning light 5 and coincides with the isocenter, achieving the effect of accurately locating the tumor lesion, reducing the number of laser lamps, and avoiding positioning blind spots. By reflecting the light beam of the laser positioning light 5 by the reflector assembly 4, the light beam can be projected to the isocenter from multiple directions. Even if there are some obstructions, all-round illumination can be achieved through reflected light. Only one laser positioning light 5 is required to meet the requirements, and a single laser positioning light 5 effectively saves costs.

[0028] See also Figure 1 As shown, the treatment room cabin 1 is the support structure of the entire system. It is typically a roughly rectangular parallelepiped structure made of sturdy metal or composite materials, providing a certain degree of strength and stability, and providing a safe operating environment for the equipment inside. Its size depends on the actual treatment room design and can be replaced with a different cabin structure, such as a circular or oval structure, as long as it meets the installation and operation requirements of the internal equipment.

[0029] See also Figure 4 As shown, the proton therapy device 2 is the core device for treating tumor lesions. It primarily consists of a particle accelerator, a beam transport system, and a treatment head. The particle accelerator accelerates protons to extremely high energies through electric and magnetic fields. The beam transport system accurately transmits the accelerated proton beam to the treatment head, which then focuses and delivers the proton beam to the tumor lesion. While the proton therapy device 2 can be replaced with other types of radiotherapy equipment, such as photon therapy devices, it offers unique advantages in precision treatment.

[0030] See also Figure 1 As shown, the treatment couch 3 is installed within the treatment room cabin 1 and can rotate around the body to adjust the position and angle of the treatment head. The treatment couch 3 typically consists of a metal frame and a drive motor. The drive motor drives the gantry rotation, which has high rotation accuracy and can accurately converge the coronal, sagittal, and transverse planes at the isocenter. A manually adjustable gantry structure is an alternative, but manual adjustment cannot guarantee high-precision positioning.

[0031] See also Figure 4As shown, the reflector assembly 4 includes a transverse reflector 41 parallel to the coronal plane, a longitudinal reflector 42 parallel to the sagittal plane, and a vertical reflector 43 parallel to the transverse plane. The transverse reflector 41 is generally a rectangular plane mirror made of highly reflective glass or metal-coated material. It is fixed within a groove 6 defined in the inner wall of the treatment room body 1. The size of the groove 6 must be compatible with the reflector to ensure the stability of the reflector installation. The structure and material of the longitudinal reflector 42 are similar to those of the transverse reflector 41, but an adjustment mechanism 7 is provided between the longitudinal reflector 42 and the groove 6 for adjusting its angle. The vertical reflector 43 is also fixed within the groove 6 to reflect the light beam.

[0032] See also Figure 2 As shown, the projection coverage area of ​​the laser positioning lamp 5 is fan-shaped, and the opening and closing angle formed by its projection is a fixed angle. The laser positioning lamp 5 generally uses a semiconductor laser as a light source, which can emit a high-intensity, high-collimation laser beam. The laser beam is diffused into a fan-shaped projection surface by optical lenses and other components, and its fixed angle is pre-set according to the space size of the treatment room and the layout of the reflector assembly 4. The laser positioning lamp 5 can be replaced with other types of light-emitting devices, but the collimation and intensity of the laser are more conducive to precise positioning.

[0033] The laser positioning lamp 5 emits a fan-shaped beam that is projected onto the reflector assembly 4, which reflects the beam to the isocenter, the location of the tumor lesion in the human body. The proton therapy device 2 performs treatment based on the location of the isocenter, and the treatment bed 3 assists in adjusting the position and angle of the treatment head for more precise treatment. This combination effectively reduces the number of laser lamps and avoids positioning blind spots caused by obstructions such as masks and wrinkled clothing, thereby improving the accuracy of tumor lesion positioning.

[0034] The grooves 6 provided on the inner wall of the treatment room cabin 1 are used to embed the transverse reflectors 41, the longitudinal reflectors 42, and the vertical reflectors 43. The width of the grooves 6 is 1-3 cm, and the spacing between the grooves 6 is equal to the width of each reflector. When each reflector is housed in the grooves 6, the end faces of each reflector are flush with the inner surface of the treatment room cabin 1, so that the reflectors are tightly mounted in the grooves 6, ensuring the stability and accuracy of the installation. This also helps to protect the reflectors from external collisions and damage.

[0035] See also Figure 3As shown, the adjustment mechanism 7 includes a first electric push rod 71 and a second electric push rod 72 mounted within the groove 6. The first and second electric push rods 71 ​​and 72 form an obtuse or right angle, and the mirror and the first and second electric push rods 71 ​​and 72 form an acute angle. The first and second electric push rods 71 ​​and 72 are driven by motors, enabling precise control of their extension and retraction lengths. When the angle of the longitudinal reflector 42 needs to be adjusted, the controller within the treatment room cabin 1 controls the extension and retraction of the first and second electric push rods 71 ​​and 72, thereby changing the tilt angle of the longitudinal reflector 42 and adjusting the direction of the reflected light beam. The first and second electric push rods 71 ​​and 72 preferentially push the mirror out of the groove 6. Subsequently, either the first or second electric push rod 71 and 72 continues to push, causing the mirror to form an angle with the treatment room cabin 1. The received laser beam is reflected onto the vertical reflector 43, which then reflects it onto the patient's tumor lesion on the treatment bed 3, ultimately achieving precise treatment.

[0036] The implementation principle of a new type of laser system for a treatment room in an embodiment of the present application is as follows: the new type of laser system projects a light beam through a single laser positioning lamp 5, which is reflected to the tumor lesion site of the human body by a reflector assembly. Since the treatment room cabin 1 is synchronously provided with reflectors parallel to the coronal plane, sagittal plane and transverse plane, the light beam can be reflected at multiple angles and directions, thereby achieving precise positioning of the center point such as the tumor lesion site of the human body. Compared with the traditional positioning method of multiple laser lamps, the equipment cost and installation complexity are reduced. The multi-angle setting of the reflector assembly 4 and the application of the adjustment mechanism 7 enable the laser beam to bypass obstructions, overcome the problem of positioning blind spots, and improve the accuracy of treatment. The coordinated work of the entire system greatly improves the effect and efficiency of tumor treatment.

[0037] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A new laser system for use in treatment rooms, characterized by: The invention comprises a treatment room cabin (1), a proton therapy device (2) installed in the treatment room cabin (1) for treating a human tumor lesion, a treatment bed (3) installed in the treatment room cabin (1), a reflector assembly (4) installed on the inner side wall of the treatment room cabin (1), and a laser positioning lamp (5) cooperating with the reflector assembly (4) to project a light beam to the human tumor lesion, wherein the treatment bed (3) is formed with a coronal plane, a sagittal plane and a transverse plane for locating the human tumor, the coronal plane, the sagittal plane and the transverse plane converge at an isocenter, and the light beam projected by the laser positioning lamp (5) received by the reflector assembly (4) coincides with the isocenter.

2. A novel laser system for treatment rooms according to claim 1, characterized in that: The reflector assembly (4) comprises a transverse reflector (41) parallel to the coronal plane, a longitudinal reflector (42) parallel to the sagittal plane, and a vertical reflector (43) parallel to the transverse plane. A groove (6) for embedding the transverse reflector (41), the longitudinal reflector (42), and the vertical reflector (43) is provided on the inner wall of the treatment room cabin (1). The vertical reflector (43) and the transverse reflector (41) are both fixed in the groove (6). An adjustment mechanism (7) for adjusting the angle of the longitudinal reflector (42) is provided between the longitudinal reflector (42) and the groove (6).

3. A novel laser system for treatment rooms according to claim 1, characterized in that: The projection coverage area of ​​the laser positioning light (5) is fan-shaped, and the opening and closing angle formed by the projection of the laser positioning light (5) is a fixed angle.

4. A novel laser system for treatment rooms according to claim 2, characterized in that: The width of the grooves (6) is 1 to 3 cm, and the spacing between the grooves (6) is equal to the width of each reflector.

5. A novel laser system for treatment rooms according to claim 2, characterized in that: The adjustment mechanism (7) comprises a first electric push rod (71) and a second electric push rod (72) installed in the groove (6); the first electric push rod (71) and the second electric push rod (72) form an obtuse angle or a right angle; and the mirror and the first electric push rod (71) / the second electric push rod (72) form an acute angle.

6. A novel laser system for treatment rooms according to claim 1, characterized in that: The laser positioning light (5) is provided in one piece.

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