Head radiotherapy equipment

Abstract

The utility model discloses head radiotherapy equipment which comprises a rack base, door shafts are installed on the two sides of the rack base, the door shafts are connected with a front shielding door and a rear shielding door, and the front shielding door and the rear shielding door on the same side of the rack base are coaxially connected. The machine frame base is connected with a base rear auxiliary supporting part, a sliding ring mechanism is installed on the base rear auxiliary supporting part, the machine frame base further comprises a machine frame, a treatment head assembly is installed on the machine frame, a sliding ring is arranged in the sliding ring mechanism, and the sliding ring mechanism is used for supplying power to the treatment head assembly and transmitting data signals and electric signals. A cable and a signal line which are connected with the rotary focusing treatment head assembly penetrate through a drag chain to be connected with a slip ring mechanism, a slip ring is conveniently installed on radiotherapy equipment, power and data signals can be stably transmitted, and after the slip ring mechanism is connected with an external power supply, through the arranged drag chain mechanism, the system performance can be improved, and the system structure can be simplified. And the problems of winding and easy damage of the power line and the signal line in the rotating process are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of radiotherapy equipment, in particular to a head radiotherapy equipment. Background Art

[0002] The radiation sources of radiotherapy equipment generally include gamma ray sources and accelerator X-ray sources. Gamma ray sources are commonly used, such as cobalt sources, which use natural radioactive isotopes to continuously generate radiation for radiotherapy. The rays emitted by the radiation source pass through the human epidermis from different angles to irradiate tumor lesions.

[0003] Head radiotherapy equipment generally uses a gamma knife. Its treatment head assembly is to install multiple cobalt sources in a cobalt source box, and use a collimator to focus the radiation beam. During the radiotherapy process, the focused rays converge on the lesion to form a limited high-dose area to act on the intracranial lesions. At present, clinical head gamma radiotherapy equipment is generally divided into two categories: fixed and non-rotatable radiation source equipment and single-rotation focusing radiation source. Rotation focusing equipment has the characteristics of good protection of normal tissues and has a higher focal-to-skin ratio. However, the existing rotation-focused head radiotherapy equipment still needs to be continuously improved in terms of structural optimization, such as self-shielding, safety (emergency manual source shutdown, drag chain solution), etc. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a head radiotherapy device, including a frame base, door shafts are installed on both sides of the frame base, the door shafts are connected to the front shielding door and the rear shielding door, the front shielding door and the rear shielding door on the same side of the frame base are coaxially connected; the frame base is connected to the rear auxiliary support part of the base, a slip ring mechanism is installed on the rear auxiliary support part of the base, the frame base also includes a frame, and a treatment head assembly is installed on the frame.

[0005] Preferably, the slip ring mechanism has a built-in slip ring, and the slip ring mechanism is used for powering the treatment head assembly and transmitting data signals and electrical signals.

[0006] Preferably, the front shielding door is connected to a driving member, and the other end of the driving member is fixed on a frame base.

[0007] Preferably, two front shielding doors and two rear shielding doors are provided.

[0008] Preferably, the frame base is further provided with a head protection cover, which is fixedly connected to the large ring, and the large ring is fixed on the frame base.

[0009] Preferably, the frame base is rotatably connected to a large gear ring, and the large gear ring is fixedly connected to the frame, and the frame is used to install the radiation source system and the CT imaging system.

[0010] Preferably, the large gear ring meshes with the gear, the gear is connected to the drive motor, and the drive motor is fixed on the frame base.

[0011] Preferably: a drag chain mechanism is installed on the frame, the drag chain mechanism comprises a box body, an opening is arranged on the top of the box body, the box body has a built-in drag chain, the inner wall of the box body is fixedly connected to a support frame, and the support frame is provided with a support portion.

[0012] Preferably, fixing columns are fixedly connected at the four corners of the box body, the fixing columns are provided with through holes, and the box wall of the box body is also provided with through holes corresponding to the fixing columns.

[0013] Preferably, the front shielding door is connected to a driving member, the other end of the driving member is fixed on the frame base, and the front shielding door is opened and closed by the driving member.

[0014] Technical effects and advantages of the utility model:

[0015] In the utility model, the cables and signal lines connected to the rotating focusing treatment head assembly pass through the drag chain to connect the slip ring mechanism. After the slip ring mechanism is connected to the external power supply, the free rotation of the treatment head assembly is realized. The slip ring is convenient to be installed on the radiotherapy equipment and can stably transmit power and data signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the structure of a head radiotherapy device provided in an embodiment of the present application;

[0017] Figure 2 is a rear view of a head radiotherapy device provided in an embodiment of the present application;

[0018] Figure 3 It is a structural schematic diagram of the head radiotherapy device provided in an embodiment of the present application without the front shielding door and the rear shielding door on one side;

[0019] Figure 4 It is a schematic diagram of the structure of a frame in a head radiotherapy device provided in an embodiment of the present application;

[0020] Figure 5 is a schematic structural diagram of a treatment head assembly in a head radiotherapy device provided in an embodiment of the present application;

[0021] Figure 6 is a structural schematic diagram of another perspective of a treatment head assembly in a head radiotherapy device provided in an embodiment of the present application;

[0022] Figure 7 is a schematic diagram of CTCT imaging in a head radiotherapy device provided in an embodiment of the present application;

[0023] Figure 8 It is a schematic diagram of the connection structure of the large gear ring in the head radiotherapy device provided in the embodiment of the present application;

[0024] Fig. 9 This is a schematic diagram of the structure of the head radiotherapy device provided in an embodiment of the present application with the tow chain mechanism in the device removing the box cover on one side.

[0025] In the figure: 1, frame base; 2, front shielding door; 201, driving part; 3, rear shielding door; 4, door shaft; 5, treatment bed; 6, rear auxiliary support part of the base; 7, slip ring mechanism; 8, frame; 9, drag chain mechanism; 91, box body; 92, drag chain; 93, opening; 94, support frame; 941, support part; 95, fixing column; 10, treatment head assembly; 101, X-ray generator; 102, detector; 103, gamma knife; 11, head protection cover; 12, large gear ring; 13, large ring; 14, gear; 15, driving motor. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0027] See also Figure 1 and Figure 2 As shown, in this embodiment, a head radiotherapy device is provided, including a frame base 1, door shafts 4 are installed on both sides of the frame base 1, the door shafts 4 are connected to the front shielding door 2 and the rear shielding door 3, the front shielding door 2 and the rear shielding door 3 on the same side of the frame base 1 are coaxially connected, two front shielding doors 2 and two rear shielding doors 3 are provided, and a treatment bed 5 is provided on one side of the frame base 1 located at the front shielding door 2, the front shielding door 2 is connected to the driving member 201, and the other end of the driving member 201 is fixed on the frame base 1, and the front shielding door 2 is opened and closed by the driving member 201. When the front shielding door 2 is closed, a treatment space is formed.

[0028] In this embodiment, the driving member 201 may be a cylinder, a hydraulic cylinder or an electric push rod, and the cylinder, the hydraulic cylinder or the electric push rod is extended and retracted to push the front screen door 2 to rotate, thereby realizing the opening and closing of the front screen door 2.

[0029] For further information, see Figure 3-Figure 6As shown, the rack base 1 is connected to the rear auxiliary support part 6 of the base, a slip ring mechanism 7 is installed on the rear auxiliary support part 6 of the base, and the slip ring mechanism 7 has a built-in slip ring. The rack base 1 is also installed with a rack 8, and a treatment head assembly 10 is fixed on the rack 8. The treatment head assembly 10 includes a CT image 101, a detector 102 and a gamma knife 103. The CT image 101 and the detector 102 are located on the same diameter of a circle with the axis of the rack 8 as a circle, so that the radiation center of the gamma knife 103 and the CT image center 101 are aligned. Overlapping, so as to achieve treatment through the gamma knife 103 after CT imaging. The frame base 1 is also provided with a head protection cover 11, the head protection cover 11 is fixedly connected to the large ring 13, the large ring 13 is fixed on the frame base 1, the frame base 1 is rotatably connected to the large gear ring 12, the large gear ring 12 is fixedly connected to the frame 8, the frame 8 is used to install the radiation source system and the CT imaging system, the large gear ring 12 meshes with the gear 14, the gear 14 is connected to the drive motor 15, and the drive motor 15 is fixed on the frame base 1.

[0030] Specifically, in the present embodiment, the slip ring is suitable for the transmission of power supply, data signal and electrical signal of two relatively rotating mechanisms in the medical equipment. The use of the slip ring can improve the system performance, simplify the system structure, and avoid the problem that the power line and the signal line are entangled and easily damaged during the rotation process. The treatment head assembly 10 is powered and the data signal and electrical signal are transmitted through the slip ring mechanism 7. The treatment head assembly 10 adopts a gamma knife 103, which is to install multiple cobalt sources in a cobalt source box, and focus the radiation beam through a collimator. During the radiotherapy process, the focused radiation converges on the lesion to form a limited high-dose area to act on the intracranial lesion. During the treatment, the driving motor 15 drives the gear 14 to rotate, drives the large gear ring 12, the frame 8 and the treatment head assembly 10 to rotate, and can adjust the position of the radiation beam treatment.

[0031] In this embodiment, refer to Figure 3 and Figure 7 As shown, a drag chain mechanism 9 is installed on the frame 8, and the drag chain mechanism 9 is used to insert the cables or signal lines to prevent the cables or signal lines from being entangled during the rotation of the frame 8.

[0032] Specifically, the drag chain mechanism 9 includes a box body 91, an opening 93 is provided on the top of the box body 91, and a drag chain 92 is built in the box body 91. The drag chain 92 is located inside the box body 91 and is curved. The inner wall of the box body 91 is fixedly connected to a support frame 94, and the support frame 94 is provided with a supporting portion 941. The supporting portion 941 is arc-shaped, and the supporting portion 941 fits the outer wall of the drag chain 92 to support the drag chain 92. Fixed columns 95 are fixedly connected at the four corners of the box body 91. The fixing columns 95 are provided with through holes, and the box wall of the box body 91 corresponding to the fixing columns 95 is also provided with through holes. Bolts pass through the through holes of the box body 91 and the fixing columns 95 to be connected to the frame 8, which facilitates the installation of the box body 91. The diameter of the fixing columns 95 is larger than the thickness of the box body 91. Compared with the box body 91, the fixing columns 95 are provided and connected with bolts, so that the strength of the connection can be improved, and the box body 91 can be prevented from being deformed, thereby preventing the box body 91 from deforming and squeezing the drag chain 92.

[0033] The working principle of the utility model is:

[0034] In the utility model, the cables and signal lines connected to the rotating focusing treatment head assembly 10 pass through the drag chain 92 to connect the slip ring mechanism 7. After the slip ring mechanism 7 is connected to the external power supply, the slip ring can be easily installed on the radiotherapy equipment, and can stably transmit power and data signals. By setting up the drag chain mechanism 9, the system performance can be improved, the system structure can be simplified, and the problem of power lines and signal lines being entangled and easily damaged during rotation can be avoided.

[0035] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A head radiotherapy device, comprising a frame base (1), characterized in that: Door shafts (4) are installed on both sides of the frame base (1), and the door shafts (4) are connected to the front screen door (2) and the rear screen door (3). The front screen door (2) and the rear screen door (3) on the same side of the frame base (1) are coaxially connected; The frame base (1) is connected to a rear auxiliary support portion (6) of the base, a slip ring mechanism (7) is installed on the rear auxiliary support portion (6) of the base, and the frame base (1) also includes a frame (8), and a treatment head assembly (10) is installed on the frame (8).

2. The head radiotherapy device according to claim 1, characterized in that: The slip ring mechanism (7) has a built-in slip ring, and the slip ring mechanism (7) is used for powering the treatment head assembly (10) and transmitting data signals and electrical signals.

3. The head radiotherapy device according to claim 1, characterized in that: The front screen door (2) is connected to a driving member (201), and the other end of the driving member (201) is fixed on the frame base (1).

4. A head radiotherapy device according to claim 3, characterized in that: Two of the front shielding doors (2) and two of the rear shielding doors (3) are provided.

5. The head radiotherapy device according to claim 1, characterized in that: The frame base (1) is also provided with a head protection cover (11), the head protection cover (11) is fixedly connected to a large ring (13), and the large ring (13) is fixed on the frame base (1).

6. The head radiotherapy device according to claim 5, characterized in that: The frame base (1) is rotatably connected to a large gear ring (12), and the large gear ring (12) is fixedly connected to a frame (8), and the frame (8) is used to install a radiation source system and a CT imaging system.

7. The head radiotherapy device according to claim 6, characterized in that: The large gear ring (12) meshes with a gear (14), the gear (14) is connected to a drive motor (15), and the drive motor (15) is fixed on the frame base (1).

8. The head radiotherapy device according to claim 1, characterized in that: The frame (8) is installed with a drag chain mechanism (9), the drag chain mechanism (9) comprising a box body (91), the top of the box body (91) is provided with an opening (93), the box body (91) has a built-in drag chain (92), the inner wall of the box body (91) is fixedly connected to a support frame (94), and the support frame (94) is provided with a support portion (941).

9. The head radiotherapy device according to claim 8, characterized in that: The box body (91) is fixedly connected with fixing columns (95) at the four corners thereof. The fixing columns (95) are provided with through holes, and the box wall of the box body (91) is also provided with through holes corresponding to the fixing columns (95).

10. The head radiotherapy device according to claim 1, characterized in that: The front screen door (2) is connected to a driving member (201), the other end of the driving member (201) is fixed on the frame base (1), and the front screen door (2) is opened and closed by the driving member (201).

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