Gamma knife collimator recognition device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly discloses a gamma knife collimator recognition device which comprises a base. The base is arranged on the ground surface, a bearing outer ring is arranged on the surface of the base, a bearing inner ring assembly is arranged in the bearing outer ring, a collimation body is arranged in the bearing inner ring assembly, and the collimation body is connected with the bearing inner ring assembly through a bolt; a collimation body detection position A, a collimation body detection position B, a collimation body detection position C and a collimation body detection position D are uniformly distributed on the surface of the collimation body; a bed body is horizontally arranged in the bearing inner ring, sliding seats are symmetrically arranged on the two sides of the bottom face of the bed body, the bed body is in sliding connection with the sliding seats, the sliding seats are arranged on the surface of the lifting mechanism, and color recognition devices are arranged on the surfaces of the sliding seats. According to the invention, the color recognition device is arranged in the collimator and is combined with the system of the collimator for control, so that the collimator can be recognized and distinguished, the error risk caused by manual inspection can be effectively avoided, and the overall operability and safety of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a gamma knife collimator identification device. Background Art

[0002] Usually, a patient's tumor will go through multiple treatment courses, and each treatment may use one or two sets of collimators; when a hospital uses a stereoscopic gamma-ray whole body treatment system for radiotherapy, each radiation treatment can use up to two sets of collimators in the collimator. The two sets of collimators are used by the hospital's radiotherapists to make radiotherapy plans based on the patient's tumor conditions. The radiation dose in the radiotherapy plan is the cumulative dose calculated by the equipment's radiation source and the collimators used, thereby achieving the treatment of the tumor. Therefore, in radiotherapy, the collimator must be installed according to the model selected in the treatment plan;

[0003] In the existing three-dimensional gamma-ray whole-body treatment system, the collimators have always been installed manually. Only two groups of collimators can be placed at each installation. Each group of collimators is designed to have 18 collimators, and each collimator focuses on the same spherical center point. Each group of collimators can be placed in the upper collimator position or the lower collimator position; and the selection of collimators and manual replacement of collimators have always been a troublesome task. There is also the risk of wrong installation and missing installation; the current risk control is mainly to store them in groups by collimator, and to conduct double inspections and repeated confirmations during installation, and to fully rely on operators and inspectors to determine the model of the collimator. There is still a risk of making mistakes. Although this risk is very low, with the advancement of technology, the risk of making mistakes in use can be further reduced through automatic inspection by equipment, while improving customer satisfaction with the user experience;

[0004] In addition, on the one hand, the cost of designing and modifying the automatic replacement collimator is high, and on the other hand, the automatic replacement of the collimator will greatly change the size and appearance structure of the product. Therefore, we invented a device that can identify the collimator, thereby improving the operability and safety of the equipment and further reducing safety risks. Utility Model Content

[0005] The utility model aims to provide a gamma knife collimator identification device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gamma knife collimator identification device, comprising a base; the base is arranged on the ground surface, a bearing outer ring is arranged on the base surface, a bearing inner ring assembly is arranged inside the bearing outer ring, a collimator is arranged inside the bearing inner ring assembly, and the collimator is connected to the bearing inner ring assembly by bolts, and a collimator detection position A, a collimator detection position B, a collimator detection position C and a collimator detection position D are evenly distributed on the surface of the collimator;

[0007] A bed is horizontally arranged inside the inner ring of the bearing, and slide seats are symmetrically arranged on both sides of the bottom surface of the bed, and the bed and the slide seats are slidably connected. The slide seats are arranged on the surface of the lifting mechanism, and a color recognition device is arranged on the surface of the slide seats.

[0008] Preferably, the color recognition device includes a slide rail; the slide rail is arranged on a slide seat surface, a slider is arranged on the slide rail surface, and the slider is slidably connected to the slide rail surface, a support wheel is arranged on the slide rail surface near the end position, the support wheel is arranged on the slide seat surface, a mounting bracket is arranged at the end of the slide rail, and a locking motor is arranged on the side of the mounting bracket.

[0009] Preferably, a through hole is provided on the surface of the mounting bracket, a connecting pin is vertically arranged inside the through hole, the output end of the positioning motor passes through the inside of the connecting pin and is connected to the connecting pin through a positioning pin, a limiting hole is provided on the bottom surface of the bed at the position corresponding to the connecting pin, and the top end of the connecting pin is inserted into the limiting hole.

[0010] Preferably, a shielding fixed cover is installed and fixed on the bottom surface of the end of the slide rail, and a distance sensor and a color recognition sensor are respectively arranged inside the shielding fixed cover.

[0011] Preferably, the positioning motor is a corner motor.

[0012] Preferably, the color recognition device is connected to a host control system, which includes a computer host and a control module; the color recognition device is electrically connected to an input end of the control module, and an output end of the control module is electrically connected to the computer host.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the present invention sets a color recognition device in the collimator and controls it in combination with its own system, so as to realize the recognition and distinction of the collimator, which can effectively avoid the risk of errors caused by manual inspection, thereby improving the overall operability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall front view of a gamma knife collimator identification device provided by the utility model;

[0015] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0016] Figure 3 for Figure 2 The enlarged schematic diagram of P in the middle;

[0017] Figure 4 for Figure 3 Cross-sectional view at the middle BB.

[0018] In the figure: 100, base; 200, bed; 201, limit hole; 300, slide; 400, color recognition device; 401, connecting pin; 402, positioning motor; 403, mounting bracket; 404, positioning pin; 405, support wheel; 406, slide rail; 407, slider; 408, shielding fixing cover; 409, distance sensor; 410, color recognition sensor; 411, collimator detection position; 500, collimator; 600, bearing outer ring; 700, bearing inner ring assembly; 800, host control system; 801, computer host; 802, control module. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-Figure 4The utility model provides a technical solution: a gamma knife collimator identification device, comprising a base 100; the base 100 is fixed to the ground surface, a bearing outer ring 600 is fixedly installed on the surface of the base 100 by bolts, a bearing inner ring assembly 700 is arranged inside the bearing outer ring 600, and the bearing inner ring assembly 700 and the bearing outer ring 600 can form a bearing structure, a collimator 500 is arranged inside the bearing inner ring assembly 700, and the collimator 500 is fixedly connected to the bearing inner ring assembly 700 by bolts, and the surface of the collimator 500 is evenly distributed with a collimator detection position 411A, a collimator detection position 411B, a collimator detection position 411C and a collimator detection position 411D;

[0023] The base 100 is used to support and connect the whole device. The bearing inner ring assembly 700 and the bearing outer ring 600 can be combined into a bearing structure, so that the bearing inner ring assembly 700 can rotate at any angle in the bearing outer ring 600, and the collimator 500 is fixed to the inner wall of the bearing inner ring assembly 700, so that when the bearing inner ring assembly 700 rotates, the collimator 500 can be driven to rotate together. When the collimator 500 is in a non-treatment state, it is in the initial position, and the initial positions are respectively 0° direction, 90° direction and 270° direction;

[0024] A bed 200 is horizontally arranged inside the inner ring of the bearing, and slide seats 300 are symmetrically arranged on both sides of the bottom surface of the bed 200, and the bed 200 and the slide seats 300 are slidably connected, and the slide seats 300 are installed and fixed on the surface of the lifting mechanism, and a color recognition device 400 is arranged on the surface of the slide seat 300;

[0025] The bed 200 can move along the Y-axis direction through the sliding connection between the bed 200 and the slide 300, and the slide 300 is fixed to the surface of the lifting mechanism, which can be fixed on the ground or the base 100, not shown in the figure. The lifting mechanism can be used to move the bed 200 in the X-axis direction and the Z-axis direction, thereby realizing the three-dimensional movement of the bed 200;

[0026] The color recognition device 400 includes a slide rail 406; the slide rail 406 is arranged on the surface of a slide seat 300, a slider 407 is arranged on the surface of the slide rail 406, and the slider 407 is slidably connected to the surface of the slide rail 406, a support wheel 405 is arranged near the end position of the surface of the slide rail 406, the support wheel 405 is arranged on the surface of the slide seat 300, and the end surface of the slide rail 406 is fixedly connected with a mounting bracket 403 by bolts, and a positioning motor 402 is fixedly installed on the side of the mounting bracket 403, and the positioning motor 402 is arranged horizontally;

[0027] The surface of the mounting bracket 403 is provided with a through hole, and a connecting pin 401 is vertically arranged inside the through hole. The output end of the positioning motor 402 passes through the connecting pin 401 and is fixedly connected to the connecting pin 401 through a positioning pin 404. A limiting hole 201 is provided at the bottom surface of the bed body 200 at a position corresponding to the connecting pin 401, and the top end of the connecting pin 401 is inserted into the limiting hole 201.

[0028] A support wheel 405 is preferably arranged near the end of the surface of the slide rail 406, so that the slide rail 406 can maintain horizontal linear motion in the Y-axis direction and reduce the resistance generated during the linear motion. After the positioning motor 402 is started, the connecting pin 401 is driven to move through the output end of the positioning motor 402, so that the slide rail 406 and the bed 200 move together in the Y-axis direction.

[0029] A shielding fixed cover 408 is fixedly mounted on the bottom surface of the end of the slide rail 406, and a distance sensor 409 and a color recognition sensor 410 are respectively fixedly mounted inside the shielding fixed cover 408;

[0030] The shielding fixed cover 408 is made of tungsten alloy. On the one hand, the shielding fixed cover 408 prevents the distance sensor 409 and the color recognition sensor 410 from being exposed to gamma rays and shortening their lifespan when not in operation. On the other hand, it serves as a mounting bracket 403 for the color recognition sensor 410 and the distance sensor 409. The color recognition sensor 410 can recognize the color after training and output four signals, which correspond to four types of collimators. The distance sensor 409 is a safety sensor, which prevents the color recognition sensor 410 assembly from being damaged by colliding with the collimator 500, and also prevents the device from being damaged by colliding with the collimator 500.

[0031] The positioning motor 402 is a rotation angle motor, and the rotation angle of the rotation angle motor is 90°. Through the linkage between the rotation angle motor, the connecting pin 401 and the limiting hole 201, it is possible to control whether the slide rail 406 moves with the bed 200, that is, the movement trajectory of the slide rail 406 can be controlled through the three-dimensional movement of the bed 200, so that the color recognition sensor 410 installed on the slide rail 406 can work within the working range;

[0032] The host control system 800 includes a computer host 801 and a control module 802 ; the color recognition device 400 is electrically connected to an input end of the control module 802 , and an output end of the control module 802 is electrically connected to the computer host 801 .

[0033] like Figure 1-Figure 4As shown, a gamma knife collimator identification device of the present invention has the following working process: the treatment plan in the computer host 801 presets the collimator model used in this treatment, and when the computer host 801 or the control module 802 issues an instruction, the collimator inspection will be performed in the following order:

[0034] 1. The bed 200 will return to the origin position of the collimator detection according to the program;

[0035] 2. The positioning motor 402 receives the instruction and rotates 90°;

[0036] 3. The collimator 500 rotates clockwise to the collimator inspection position A;

[0037] 4. The bed 200 moves to the collimator inspection position A according to the running track set during installation, and returns the recognized color signal to the control module 802 and the computer host 801;

[0038] 5. The computer host 801 compares the returned signal with the preset color code of the treatment plan. If they are inconsistent, an error is reported, an audible and visual alarm command is issued, and an abnormal processing state is entered. If no error is reported, the next step of detection is carried out until no detection is completed and no alarm is issued;

[0039] 6. When there is no abnormality in the detection of the collimator inspection position A, the color recognition sensor 410 stops until the collimator 500 rotates clockwise to the collimator inspection position B, and then performs detection in the reverse direction according to the set trajectory;

[0040] 7. Complete the inspection of all collimators at collimator inspection position C and collimator inspection position D according to the above steps.

[0041] It is worth noting that the entire device is controlled by a main control button. Since the device matched with the control button is a common device and belongs to the existing common knowledge technology, its electrical connection relationship and specific circuit structure will not be described here.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gamma knife collimator identification device, characterized in that: The invention comprises a base (100); the base (100) is arranged on the ground surface; a bearing outer ring (600) is arranged on the surface of the base (100); a bearing inner ring assembly (700) is arranged inside the bearing outer ring (600); a collimator (500) is arranged inside the bearing inner ring assembly (700); the collimator (500) is connected to the bearing inner ring assembly (700) by bolts; and a collimator detection position (411) A, a collimator detection position (411) B, a collimator detection position (411) C and a collimator detection position (411) D are evenly distributed on the surface of the collimator (500); A bed is horizontally arranged inside the inner ring of the bearing, and slide seats (300) are symmetrically arranged on both sides of the bottom surface of the bed (200). The bed (200) and the slide seats (300) are slidably connected, and the slide seats (300) are arranged on the surface of the lifting mechanism. A color recognition device (400) is arranged on the surface of the slide seat (300).

2. A gamma knife collimator identification device according to claim 1, characterized in that: The color recognition device (400) comprises a slide rail (406); the slide rail (406) is arranged on the surface of a slide seat (300); a slider (407) is arranged on the surface of the slide rail (406); the slider (407) is slidably connected to the surface of the slide rail (406); a support wheel (405) is arranged on the surface of the slide rail (406) near the end position; the support wheel (405) is arranged on the surface of the slide seat (300); a mounting bracket (403) is arranged at the end of the slide rail (406); and a locking motor (402) is arranged on the side of the mounting bracket (403).

3. A gamma knife collimator identification device according to claim 2, characterized in that: A through hole is provided on the surface of the mounting bracket (403), a connecting pin (401) is vertically arranged inside the through hole, the output end of the positioning motor (402) passes through the inside of the connecting pin (401) and is connected to the connecting pin (401) via a positioning pin (404), a limiting hole (201) is provided on the bottom surface of the bed body (200) at a position corresponding to the connecting pin (401), and the top end of the connecting pin (401) is inserted into the limiting hole (201).

4. A gamma knife collimator identification device according to claim 3, characterized in that: A shielding fixed cover (408) is fixedly mounted on the bottom surface of the end of the slide rail (406), and a distance sensor (409) and a color recognition sensor (410) are respectively arranged inside the shielding fixed cover (408).

5. The gamma knife collimator identification device according to claim 2, characterized in that: The positioning motor (402) is a rotation angle motor.

6. A gamma knife collimator identification device according to claim 1, characterized in that: The color recognition device (400) is connected to a host control system (800), and the host control system (800) comprises a computer host (801) and a control module (802); the color recognition device (400) is electrically connected to an input end of the control module (802), and an output end of the control module (802) is electrically connected to the computer host (801).

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