Laser positioning instrument for nuclear magnetic resonance machine room

Abstract

The utility model discloses a laser positioning instrument for a nuclear magnetic resonance machine room. The laser positioning instrument comprises a nuclear magnetic positioning plate, a gantry type frame detachably arranged on the nuclear magnetic positioning plate, and three groups of laser positioning assemblies in sliding connection with the gantry type frame, the gantry type frame can be installed in the length direction of the nuclear magnetic positioning plate and used for achieving three-dimensional positioning of the three laser positioning assemblies in the head and foot direction of the body of the patient. The three sets of laser positioning assemblies are correspondingly arranged on the top and the two sides of the gantry type frame, and scales are arranged at the installation positions of the gantry type frame and used for accurately adjusting and recording the positions of the laser positioning assemblies. According to the utility model, the laser positioning instrument can be fixed on the nuclear magnetic positioning plate in a rapid bayonet lock manner, and a patient lies on the nuclear magnetic positioning plate for scanning, so that radiotherapy laser positioning in a nuclear magnetic environment can be completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to radiotherapy technical field, especially a laser positioning instrument for nuclear magnetic resonance machine room. BACKGROUND

[0002] In the field of radiotherapy, accurate positioning before treatment is a crucial step, which directly relates to the accuracy and effectiveness of treatment. In order to determine the precise location and range of the lesion, patients usually need to undergo image scanning, such as magnetic resonance imaging (MRI). Nuclear magnetic resonance technology uses magnetic fields and radio frequency pulses to obtain detailed images of internal structures of the human body, especially in soft tissue imaging, which has obvious advantages compared to computed tomography (CT). Therefore, with the development of medical imaging technology, the demand for radiotherapy positioning using nuclear magnetic resonance is increasing.

[0003] However, the strong magnetic field in the nuclear magnetic resonance machine room imposes strict requirements on the treatment equipment. Any material that can be attracted by the magnetic field, such as metal components used in traditional laser positioning instruments, is not allowed to exist in the nuclear magnetic resonance machine room. This results in the limited application of traditional laser markers in the nuclear magnetic resonance environment, because these devices need to use metal tools such as electric drills and screwdrivers during installation, which can be easily attracted in a strong magnetic field, causing equipment damage or safety hazards, and even causing harm to patients and medical staff.

[0004] In addition, due to the structural limitations of traditional laser positioning equipment, it cannot perform accurate three-dimensional laser positioning in the nuclear magnetic resonance machine room, which limits the accuracy and effectiveness of radiotherapy. Therefore, it is necessary to develop a new type of laser positioning instrument that can meet the special environmental requirements of the nuclear magnetic resonance machine room and provide accurate three-dimensional positioning function to improve the accuracy and safety of radiotherapy. Utility model content

[0005] In view of the problems existing in the prior art, the utility model provides a laser positioning instrument for nuclear magnetic resonance machine room.

[0006] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] The utility model provides a laser positioning instrument for nuclear magnetic resonance machine room, which comprises: a nuclear magnetic positioning plate, a gantry type frame detachably arranged on the nuclear magnetic positioning plate, and three groups of laser positioning components in sliding connection with the gantry type frame.

[0008] The gantry type frame can be installed along the length direction of the nuclear magnetic positioning plate, which is used to realize three-dimensional positioning of the three groups of laser positioning components in the head-to-foot direction of the patient's body.

[0009] Three groups of laser positioning assemblies are arranged on the top and two sides of the gantry frame, and a scale is arranged on the mounting position of the gantry frame, which is used for accurately adjusting and recording the position of the laser positioning assembly.

[0010] Preferably, a plurality of adjustable mounting hole positions are arranged on the two sides of the nuclear magnetic positioning plate, and the gantry frame can be mounted along different adjustable mounting hole positions, so that the position of the gantry frame mounted on the nuclear magnetic positioning plate can be adjusted.

[0011] Preferably, a 7-shaped fixing seat is arranged at the bottom of the gantry frame, and a quick pin is arranged on the 7-shaped fixing seat; the quick pin is inserted into the adjustable mounting hole position, so that the gantry frame is fixed on the nuclear magnetic positioning plate.

[0012] Preferably, a sliding assembly is further arranged on the gantry frame, and the laser positioning assembly is arranged on the sliding assembly.

[0013] Preferably, the sliding assembly comprises a guide rail and a sliding block arranged on the guide rail; the guide rail is arranged on the gantry frame, and the scale is arranged beside the guide rail.

[0014] Preferably, three groups of laser positioning assemblies are arranged on the top, the middle of the two sides of the gantry frame.

[0015] Preferably, each laser positioning assembly comprises a fixing seat arranged on the sliding block, a cross laser lamp head and a non-magnetic battery pack arranged on the fixing seat, and a lamp line adjusting knob for adjusting the cross laser lamp head.

[0016] Preferably, the scale has an accuracy of 0.1 mm, which is used for accurately adjusting and recording the laser positioning assembly.

[0017] The technical scheme of the utility model has the following beneficial effects:

[0018] The laser positioning instrument can be fixed on the nuclear magnetic positioning plate by means of the quick pin, the use of tools that can be attracted by a magnetic field is avoided, the application limitation problem of the traditional equipment in the MRI environment is solved, and the patient can complete the radiotherapy laser positioning in the nuclear magnetic environment when lying on the nuclear magnetic positioning plate for scanning.

[0019] The utility model designs a nuclear magnetic positioning plate which can be used in the nuclear magnetic environment and is fixed on the nuclear magnetic bed; and a gantry frame which can be used in the strong magnetic environment is also designed, three groups of laser positioners are arranged on the gantry frame, the laser positioners can be adjusted leftward and rightward and upward and downward, the gantry frame can move in the head-foot direction, and the laser positioning instrument can realize three-dimensional movement, 提高了治疗的精确性 ， so as to help the radiotherapy doctor to position.

[0020] Improved positioning accuracy: Through precise scale and sliding component design, this laser positioning instrument can achieve laser positioning component adjustment with an accuracy of 0.1mm, which significantly improves the positioning accuracy of radiotherapy and imaging.

[0021] Ease of operation: The design of quick-release latches and sliding components simplifies the installation and adjustment process of the equipment, eliminating the need for tools, reducing operational difficulty, and improving work efficiency.

[0022] Highly adaptable: The adjustable mounting holes and detachable gantry frame design allow the equipment to adapt to different patient body shapes and treatment needs, making it widely applicable.

[0023] Enhanced safety: The use of a non-magnetic battery pack ensures the safe use of the equipment in a magnetic field, while avoiding interference with the nuclear magnetic resonance equipment.

[0024] Reduced preparation time: The quick-release locking design allows for faster adjustment and fixation of the gantry frame, reducing treatment preparation time and improving treatment efficiency.

[0025] Improved patient experience: Precise positioning reduces the number of times patients need to adjust their position, improving patient comfort and treatment experience. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the laser positioning component of this utility model. Figure One ;

[0028] Figure 3 This is a schematic diagram of the laser positioning component of this utility model. Figure Two . Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of the utility model, it is understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0031] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0032] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature in the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature in the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature in the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] Referring to Figures 1 to 3 The utility model provides a kind of laser positioner for nuclear magnetic resonance machine room, comprising: nuclear magnetic positioning plate 1, the gantry frame 3 of detachably being set on nuclear magnetic positioning plate 1, and three groups of laser positioning components 200 being slidably connected with gantry frame 3;

[0035] The gantry frame 3 can be installed along the length direction of the nuclear magnetic positioning plate, and is used to realize three-dimensional positioning of the three groups of laser positioning assemblies 200 in the head-to-foot direction of the patient's body; this design provides greater flexibility and adaptability, and can be adjusted according to the body shape and treatment needs of different patients.

[0036] The three groups of laser positioning assemblies 200 are arranged on the top and both sides of the gantry frame 3, and a scale 10 is arranged at the installation position of the gantry frame 3, which is used to accurately adjust and record the position of the laser positioning assembly; by arranging three groups of laser positioning assemblies 200 on the top and both sides of the gantry frame 3, the patient's body can be positioned in all directions, and this layout helps to capture the position information of the patient's body from different angles, ensuring the accuracy of positioning; the movement ability of the gantry frame 3, combined with the accurate adjustment of the laser positioning assembly 200, can significantly improve the positioning accuracy of the overall system; the gantry frame 3 is made of high-hardness aluminum alloy material, which can be used in a strong magnetic environment; the nuclear magnetic positioning plate 1 is arranged in the same structure as the linear accelerator bed plate, and is made of Kevlar; its function is to keep the patient's body position consistent with the CT positioning position when the patient is scanned by the magnetic resonance scanner; the nuclear magnetic positioning plate is fixed on the nuclear magnetic bed.

[0037] Further, a plurality of adjustable installation hole positions 101 are arranged on the two sides of the nuclear magnetic positioning plate 1, and the gantry frame 3 can be installed along different adjustable installation hole positions 101, so that the position of the gantry frame 3 installed on the nuclear magnetic positioning plate 1 can be adjusted; by changing the position of the gantry frame 3 on the nuclear magnetic positioning plate 1, different patients of different body shapes can be adapted to, and ensure that the laser positioning assembly 200 can accurately aim at the key parts of the patient; the adjustable gantry frame 3 allows doctors to adjust the position of the laser positioning assembly 200 according to the treatment plan or imaging needs to obtain the best positioning effect; the position adjustment of the gantry frame 3 can be recorded, which is helpful for subsequent treatment evaluation and quality control.

[0038] Further, a 7-shaped fixing seat is arranged at the bottom of the gantry frame 3, and a quick pin 2 is arranged on the 7-shaped fixing seat; the quick pin 2 is inserted into the adjustable installation hole position 101, so that the gantry frame 3 is fixed on the nuclear magnetic positioning plate 1. The quick pin 2 is made of ABS material, and doctors can quickly loosen / lock the entire gantry frame 3 without tools; because the positions of tumors of different patients are different, doctors need to quickly adjust the entire gantry frame 3 according to actual needs, and it is not convenient to use tools in the nuclear magnetic machine room, so the quick pin structure is designed; the quick pin 2 makes the adjustment and fixation of the gantry frame 3 more rapid, reduces the preparation time of treatment, and simplifies the disassembly process of the equipment, which is convenient for cleaning and disinfection, and is helpful for maintaining the hygiene of the equipment.

[0039] Further, the gantry type frame 3 is further provided with a sliding assembly 20, and the laser positioning assembly 200 is installed on the sliding assembly 20 and used for realizing accurate movement of the laser positioning assembly 200; the sliding assembly 20 comprises a guide rail 4 and a sliding block arranged on the guide rail 4; the guide rail 4 is installed on the gantry type frame 3, and the guide rail 4 is provided with the scale 10; the laser positioning assembly 200 is installed on the sliding assembly 20, so that the laser positioning assembly 200 can slide along the guide rail 4 to adjust the position of the laser; the guide rail 4 is provided with the scale 10, which is used for indicating the position of the sliding block, so as to accurately control the position of the laser positioning assembly 200, and ensure that the positioning error of the laser positioning assembly 200 is less than 0.5mm when the laser positioning assembly 200 moves on the gantry type frame 3; further, the scale 20 has an accuracy of 0.1mm, which is used for ensuring accurate adjustment and record of the laser positioning assembly 200; the combination of the sliding assembly 20 and the scale 10 makes the movement of the laser positioning assembly 200 more accurate, and improves the overall positioning accuracy.

[0040] Further, the three groups of laser positioning assemblies 200 are arranged at the top and the middle of the two sides of the gantry type frame 3, and can realize three-dimensional space positioning of the patient's body; each laser positioning assembly 200 comprises a fixing seat installed on the sliding block, a cross laser lamp head 6 and a non-magnetic battery pack 7 arranged on the fixing seat, and a lamp line adjusting knob 5 used for adjusting the cross laser lamp 6; the cross laser lamp head 6 is used for indicating the marking line of the patient, so as to ensure that the patient's position is consistent with the CT positioning; the non-magnetic battery pack 7 provides power supply for the laser positioning assembly 200, so as to ensure that the laser lamp head 6 can work normally, and is designed to be non-magnetic, so as to avoid interference with the nuclear magnetic resonance equipment, improve the safety of the equipment, and at the same time, get rid of the power supply constraint and facilitate the operation of the doctor; the lamp line adjusting knob 5 is used for fine adjustment of the cross laser lamp head 6, so as to ensure that the laser lines are accurately aligned, and when the left and right laser lines do not coincide, the lamp line adjusting knob 5 needs to be adjusted to make the left and right cross laser lines coincide.

[0041] The working principle of the utility model is as follows:

[0042] Firstly, the laser line coincidence of the three groups of laser positioning assemblies 200 on the gantry type frame 3 is verified, and if the laser lines do not coincide, the lamp line adjusting knob 5 is adjusted until the laser lines coincide; then the patient is fixed, and the patient is fixed on the nuclear magnetic positioning plate 1 according to the CT positioning position; the gantry type frame 3 is installed, and is moved forward and backward on the nuclear magnetic positioning plate 1 according to the need, so that the left and right cross laser lines and the top cross laser line coincide with the three marking points on the patient's body; if the three marking points do not coincide, the patient's posture needs to be adjusted until the three marking points and the three cross laser lines coincide; finally, the gantry type frame 3 is removed, and the nuclear magnetic scanning is started.

[0043] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the inventive concept of the present application, as described in the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A laser positioner for a nuclear magnetic resonance machine room, characterized by, The utility model relates to a kind of laser positioning device for nuclear magnetic resonance, including: Nuclear magnetic positioning plate, detachable gantry frame arranged on nuclear magnetic positioning plate, and three groups of laser positioning components slidingly connected with gantry frame; The gantry frame can be installed along the length direction of the nuclear magnetic positioning plate to realize the three-dimensional positioning of the three groups of laser positioning components in the head-to-foot direction of the patient's body. Three groups of laser positioning components are arranged on the top and both sides of the gantry frame, and a scale is provided on the installation position of the gantry frame for accurate adjustment and recording of the position of the laser positioning component.

2. Laser positioner for a nuclear magnetic resonance cabin according to claim 1, characterized in that, A plurality of adjustable mounting hole positions are provided on both sides of the nuclear magnetic positioning plate, and the gantry frame can be installed along different adjustable mounting hole positions to adjust the position of the gantry frame installed on the nuclear magnetic positioning plate.

3. Laser positioner for a nuclear magnetic resonance cabin according to claim 2, characterized in that, A 7-shaped fixing seat is installed at the bottom of the gantry frame, and a quick pin is installed on the 7-shaped fixing seat. By inserting the quick pin into the adjustable mounting hole position, the gantry frame is fixed on the nuclear magnetic positioning plate.

4. The laser positioner for a nuclear magnetic resonance machine room according to claim 3, characterized in that, The gantry frame is also provided with a sliding assembly, and the laser positioning component is installed on the sliding assembly.

5. Laser positioner for a nuclear magnetic resonance cabin according to claim 4, characterized in that, The sliding assembly includes a guide rail and a sliding block arranged on the guide rail. The guide rail is installed on the gantry frame, and the scale is provided beside the guide rail.

6. Laser positioner for a nuclear magnetic resonance cabin according to claim 5, characterized in that, Three groups of laser positioning components are arranged on the top, middle of both sides of the gantry frame.

7. Laser positioner for a nuclear magnetic resonance cabin according to claim 6, characterized in that, Each laser positioning component includes a fixing seat installed on the sliding block, a cross laser lamp head and a non-magnetic battery pack arranged on the fixing seat, and a lamp line adjustment knob for cross adjustment of the laser lamp head.

8. Laser positioner for a nuclear magnetic resonance cabin according to claim 7, characterized in that, The accuracy of the scale is 0.1 mm to ensure accurate adjustment and recording of the laser positioning component.

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