SPECT (single photon emission computed tomography) rack for online monitoring of boron concentration in boron neutron capture therapy process

Abstract

The utility model discloses an SPECT (Single Photon Emission Computed Tomography) rack for on-line monitoring of boron concentration in a boron neutron capture therapy process, which comprises a fixed base, a telescopic SPECT probe is rotationally connected onto the fixed base, and an arc-shaped view field for annular static scanning is arranged on the SPECT probe. The SPECT rack for online monitoring of the boron concentration in the boron neutron capture therapy process is light, flexible and space-saving, an SPECT probe can be arranged at any expected position, the SPECT rack can adapt to signal acquisition under different therapy body positions, the SPECT rack structure can be easily stored in a high space after therapy is finished, a patient can move the SPECT rack conveniently, and the SPECT rack is convenient to use. And high flexibility and degree of freedom are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of target current monitoring devices, in particular to a SPECT rack for online monitoring of boron concentration during boron neutron capture therapy. Background Art

[0002] Boron neutron capture therapy (BNCT) is a cancer radiotherapy method based on the 10B(n, α)7Li reaction. During this process, epithermal neutron beams (0.5eV-10keV) react with boron-containing drugs that are targeted and enriched in tumor cells to produce α and 7Li particles with high energy line density, high relative biological effect, low oxygen enhancement ratio and short range characteristics. The range of these particles is less than 10μm, which is smaller than the diameter of most human tumor cells. They can form high-density ionization energy per unit distance, destroy the DNA double strands of tumor cells, and cause the death of boron-containing tumor cells. The effect is much stronger than traditional cancer treatments such as radiotherapy and heavy ion therapy. In addition, BNCT is also widely used in various types of tumors such as head and neck cancer, melanoma, osteosarcoma, brain and CNS tumors, breast cancer, etc. Not only that, BNCT only requires 1~2 courses of treatment, so the treatment cost is lower, it is more patient-friendly, and it is far superior to other existing treatments.

[0003] However, in order to achieve accurate treatment of tumors by BNCT, it is necessary to monitor the distribution and concentration of 10B drugs in the treatment target area online to achieve efficient treatment of tumors and protect normal tissues. If the quantitative distribution information of 10B drugs is not obtained during the treatment process, the treatment dose will be uncertain, which may affect the treatment effect and cause unnecessary damage to normal tissues, or miss the best window for treatment. Accurate monitoring of boron concentration distribution is also crucial for preventing adverse conditions after treatment (such as tumor recurrence and edema).

[0004] At present, it is generally proposed to use single photon emission computed tomography (SPECT) for online monitoring of boron concentration. It collects 478KeV prompt gamma rays released by the reaction of epithermal neutrons and boron medicine for tomographic imaging to obtain the distribution and concentration of boron concentration in the target area.

[0005] However, the frame of a conventional SPECT device generally uses dual probes, triple probes or more probes in conjunction with a fixed rotating frame for scanning. The patient can only lie on the axis position of the rotating frame for detection. The patient's scanning position is fixed and the equipment requires bulky and difficult to move. The new D-SPECT structure uses an L-shaped probe in conjunction with a joystick-like frame for scanning, and the patient's treatment position is also very limited. For BNCT boron concentration monitoring, the therapeutic neutron beam is emitted from a beam shaping assembly (BSA) fixed in the wall. During the treatment, the patient may coincide with the neutron beam direction, may be at a certain angle to the neutron beam direction, or may be perpendicular to the neutron beam direction. The patient needs to be close to the wall, and the SPECT layout space is very limited. At the same time, the SPECT frame structure and signal acquisition process cannot interfere with the treatment process. This makes it impossible for the SPECT frame suitable for BNCT boron concentration monitoring to use a circular rotating scanning frame, and at the same time requires the SPECT frame to have a high degree of flexibility and freedom. Utility Model Content

[0006] The utility model aims to solve the problems that the existing rack is limited by the layout space, cannot realize the circular rotation scanning in the non-interference treatment process, lacks flexibility and freedom, and provides a SPECT rack for online monitoring of boron concentration in the boron neutron capture treatment process, which has high flexibility and freedom, is flexible and light, can be fixed on the ceiling, wall or movable suspension, does not occupy the ground space, will not hinder the treatment process, can adapt to the signal collection under different treatment positions in the SPECT treatment process, and can also be conveniently stored after the treatment, so as to facilitate the patient to move; the SPECT probe can remain stationary during the collection process, and can collect as much as possible to reduce the uncertainty caused by the change of boron concentration with the collection time.

[0007] The technical solution adopted by the utility model to achieve its invention purpose is: a SPECT rack for online monitoring of boron concentration during boron neutron capture therapy, including a fixed base, a telescopic SPECT probe is rotatably connected to the fixed base, and the SPECT probe is provided with an arc field of view for annular static scanning. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy can arrange the SPECT probe to any desired position such as a ceiling, a wall or a movable suspension by setting a fixed base, and at the same time, a telescopic SPECT probe is set, and the telescopic SPECT probe can be rotated on the fixed base to adjust the position and angle of the telescopic SPECT probe, and the telescopic SPECT probe is provided with an arc field of view, which can scan the range to be detected to the maximum extent in a static state, does not occupy the ground space, does not hinder the treatment process, can adapt to the signal collection under different treatment positions during the SPECT treatment process, and can also conveniently store the SPECT rack after the treatment, which is convenient for the patient to move, has high flexibility and freedom, is flexible and light, and has a simple structure, is more convenient and quick to operate, and is highly practical.

[0008] Preferably, the telescopic SPECT probe is connected to the fixed base in a swivel manner via a swivel assembly. In order to achieve the swivel and swing connection between the telescopic SPECT probe and the fixed base, a swivel assembly is provided between the telescopic SPECT probe and the fixed base.

[0009] Preferably, the rotating assembly includes a rotating connector and a rotating shaft. As a preferred solution, the rotating assembly mainly includes a rotating connector for rotationally connecting with a fixed base and a rotating shaft for swingingly connecting with a telescopic SPECT probe.

[0010] Preferably, the rotating connector includes a rotating member body and a rotating embedded shaft, the lower end of the rotating member body is provided with a U-shaped rotating groove, and a rotating shaft hole is provided on the groove wall of the U-shaped rotating groove. As a preferred solution, the rotating connector includes a rotating member body and a U-shaped rotating groove is provided on the rotating member body, and a rotating shaft hole is provided on the U-shaped rotating groove, so that the telescopic SPECT probe can be swungly connected to the rotating connector. The rotating embedded shaft is provided to achieve a rotating connection with a fixed base, and the rotating embedded shaft is embedded in the fixed base and can rotate 360 ​​degrees relative to the fixed base, so as to adjust the position and angle of the telescopic SPECT probe.

[0011] Preferably, the rotating member body and the rotating embedded shaft are integrally arranged or separately arranged. The rotating member body and the rotating embedded shaft can be integrally arranged or separately arranged.

[0012] As another preferred embodiment, the rotating connector is a rotating joint; or the rotating connector is a rotating seat. As another preferred embodiment, the rotating connector can be directly connected to the fixed base by a rotating joint, or can be connected to the fixed base by a rotating seat capable of 360-degree rotation.

[0013] As another preferred embodiment, the rotating assembly includes a rotating connector, a rotating shaft and a bearing. As another preferred embodiment, the rotating assembly can also be connected to a fixed base by a rotating connector through a bearing for 360-degree rotation. Based on this, the rotating assembly includes a rotating connector, a rotating shaft and a bearing.

[0014] Preferably, the telescopic SPECT probe is telescopically arranged through a telescopic assembly. In order to adjust the length and position of the SPECT probe, the SPECT probe is telescopically arranged through a telescopic assembly.

[0015] Preferably, the telescopic assembly comprises at least one set of telescopic arms. The telescopic assembly preferably has a telescopic arm structure, which has a simple structure and is easy to operate.

[0016] Preferably, the telescopic arm comprises a secondary main telescopic arm and a secondary secondary telescopic arm which are hingedly connected, and a shaft through hole is provided on the secondary main telescopic arm. The telescopic arm mainly comprises a secondary main telescopic arm and a secondary secondary telescopic arm which are hingedly connected together, and a shaft through hole is provided on the secondary main telescopic arm in order to realize the swing connection between the secondary main telescopic arm and the rotating assembly.

[0017] Preferably, the secondary telescopic arm is hingedly connected to the SPECT probe and drives the SPECT probe to change position and angle. The secondary telescopic arm can be set as needed, and one group, two groups or multiple groups can be set. The secondary telescopic arm is mainly used to connect with the SPECT probe and drive the SPECT probe to change position and angle. Therefore, the secondary telescopic arm is hingedly connected to the SPECT probe.

[0018] Preferably, the fixed base includes a base flange and a base body, the base flange is provided with a base mounting hole, and the base body is provided with a rotation embedding hole. As a preferred solution, the fixed base mainly adopts a base flange and a base body, the base flange is used to connect with any desired position, and the base body is mainly used to realize rotation connection with the rotating component.

[0019] Preferably, the SPECT probe is also provided with a locking and positioning structure, which is provided to realize locking and positioning of the position between the SPECT probe and the telescopic assembly, thereby locking the scanning position to realize static scanning and ensure scanning accuracy.

[0020] The beneficial effects of the utility model are as follows: the SPECT frame for online monitoring of boron concentration during boron neutron capture therapy is light, flexible, and space-saving; the SPECT probe can be arranged at any desired position through a rotating component and a telescopic component, and can adapt to signal collection under different treatment positions; the SPECT frame structure can also be easily stored in a high space after the treatment, which is convenient for patients to move, and has high flexibility and freedom. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of a SPECT frame for online monitoring of boron concentration during boron neutron capture therapy.

[0022] Figure 2 It is a structural schematic diagram of the SPECT rack of the utility model from another angle.

[0023] Figure 3 It is a schematic diagram of the exploded structure of the SPECT rack of the utility model.

[0024] Figure 4 It is a schematic diagram of an application structure of the SPECT rack of the utility model.

[0025] Figure 5 It is a use state diagram of the SPECT rack of the utility model.

[0026] Figure 6 This is a second use state diagram of the SPECT rack of the utility model.

[0027] Figure 7 This is a third use state diagram of the SPECT rack of the utility model.

[0028] In the figure: 1, fixed base, 11, base flange, 12, base body, 13, base mounting hole, 14, rotation embedding hole;

[0029] 2. SPECT probe, 21. probe articulated seat, 22. arc-shaped field of view;

[0030] 3. Rotating assembly, 4. Telescopic assembly;

[0031] 5. Rotating connecting member, 51. Rotating member body, 52. Rotating embedded shaft, 53. U-shaped rotating slot, 54. Rotating shaft hole;

[0032] 6. Rotating axis, 7. Telescopic arm;

[0033] 8. Secondary main telescopic arm, 81. Secondary main telescopic arm outer arm, 82. Secondary main telescopic arm inner arm, 83. Through hole, 84. Rotating support, 85. U-shaped seat body, 86. Connecting shaft;

[0034] 9. Secondary telescopic arm, 91. Secondary telescopic arm outer arm, 92. Secondary telescopic arm inner arm, 93. Articulated rod, 94. Articulated hole;

[0035] 10. Patient, 20. Neutron beam exit, 30. Wall, 40. Bed. DETAILED DESCRIPTION

[0036] The various aspects of the utility model are described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] exist Figure 1 , Figure 2 , Figure 3 In the illustrated embodiment, a SPECT rack for online monitoring of boron concentration during boron neutron capture therapy includes a fixed base 1 for mounting the SPECT rack at any desired position in a treatment room, a telescopic SPECT probe 2 is rotatably connected to the fixed base 1, and the SPECT probe 2 is provided with an arc-shaped field of view 22 for annular static scanning.

[0039] The fixed base 1 comprises a base flange 11 and a base body 12 . A base mounting hole 13 is arranged on the base flange 11 ; and a rotation embedding hole 14 is arranged on the base body 12 .

[0040] In order to realize the rotation and swing of the SPECT probe 2 , the telescopic SPECT probe 2 is connected to the fixed base 1 in a rotation and swinging manner via a rotating component 3 .

[0041] The rotating assembly 3 includes a rotating connecting member 5 and a rotating shaft 6. The rotating connecting member 5 includes a rotating member body 51 and a rotating embedded shaft 52. The lower end of the rotating member body 51 is provided with a U-shaped rotating slot 53, and a rotating shaft hole 54 is provided on the slot wall of the U-shaped rotating slot 53. The rotating member body 51 and the rotating embedded shaft 52 are integrally arranged or separately arranged. In this embodiment, the rotating member body 51 and the rotating embedded shaft 52 are integrally arranged.

[0042] In another embodiment, the rotating connector 5 is a rotating joint; in other embodiments, the rotating connector 5 is a rotating seat.

[0043] In order to change the length position of the SPECT probe 2, the telescopic SPECT probe 2 is telescopically arranged through a telescopic assembly 4. The telescopic assembly 4 includes at least one set of telescopic arms 7. The telescopic arms 7 include a secondary main telescopic arm 8 and a secondary secondary telescopic arm 9 that are hingedly connected, and the secondary main telescopic arm 8 is provided with a shaft through hole 83.

[0044] The secondary telescopic arm 9 is hingedly connected to the SPECT probe 2 and drives the SPECT probe 2 to change position and angle.

[0045] The SPECT probe 2 is also provided with a locking and positioning structure.

[0046] Embodiment 2:

[0047] In this embodiment, a SPECT rack for online monitoring of boron concentration during boron neutron capture therapy includes a fixed base 1 for mounting the SPECT rack in a treatment room, a SPECT probe 2 connected to the fixed base 1 in a 360-degree free rotation manner, and the SPECT probe 2 is arranged in an arc-shaped structure. A rotating component 3 and a telescopic component 4 for changing the direction and position of the SPECT probe 2 are also included.

[0048] The SPECT probe 2 is provided with an arc-shaped field of view 22, which can be semi-circular, semi-elliptical, semi-open curved, etc. The structural shape of the arc-shaped field of view 22 can be any shape as long as it can semi-enclose the patient during treatment. Its purpose is to maintain static collection during online detection of boron concentration, and to achieve all-round detection and collection without affecting the normal treatment of the patient.

[0049] The rotating assembly 3 includes a rotating connector 5 and a rotating shaft 6. The rotating connector 5 can be a spherical rotating joint, a rotating seat, or other rotatable components, as long as it can be connected to the fixed base for 360-degree rotation. The rotating shaft is used to connect with the telescopic assembly and can drive the telescopic assembly to rotate. The rotating connector 5 and the fixed base 1 can also be directly connected through a bearing.

[0050] like Figure 4 As shown, in this embodiment, the rotating connecting member 5 includes a rotating member body 51 and a rotating embedded shaft 52 which are arranged in one piece or in a separate piece. A U-shaped rotating slot 53 is arranged at the lower end of the rotating member body 51, and a rotating shaft hole 54 is arranged on the slot wall of the U-shaped rotating slot 53. The rotating shaft 6 is arranged inside the rotating shaft hole 54 and passes through the U-shaped rotating slot 53 horizontally. The rotating embedded shaft 52 is embedded inside the fixed base 1 in a T-shaped structure as a whole.

[0051] The telescopic assembly 4 preferably adopts at least one set of telescopic arms 7. In this embodiment, the telescopic arms 7 include a secondary main telescopic arm 8 and a secondary secondary telescopic arm 9.

[0052] The secondary main telescopic arm 8 can be an inside-out telescopic type, a folding telescopic type, or an elastic telescopic type, and the specific telescopic method is not limited. In this embodiment, the secondary main telescopic arm 8 adopts an inside-out telescopic type. The secondary main telescopic arm 8 includes a secondary main telescopic arm outer arm 81 and at least one secondary main telescopic arm inner arm 82, and the secondary secondary telescopic arm 9 also adopts an inside-out telescopic type. The secondary secondary telescopic arm 9 is arranged in two groups in an eight-shaped structure, and each group of secondary secondary telescopic arms 9 includes a secondary secondary telescopic arm outer arm 91 and at least one secondary secondary telescopic arm inner arm 92.

[0053] In this embodiment, the fixed base 1 includes a base flange 11 and a base body 12. A base mounting hole 13 is provided on the edge of the base flange 11. The setting of the base mounting hole 13 enables the fixed base 1 to be fixed to any possible installation position such as the roof, wall of the treatment room or a movable bracket that does not hinder treatment by bolt connection. Specifically, the installation position should avoid the neutron beam outlet and the patient's treatment space as much as possible. A rotation embedding hole 14 is provided on the base body 12.

[0054] The rotating embedded shaft 52 in the rotating connector 5 is embedded in the rotating embedded hole 14 of the fixed base 1. The rotating connector 5 can rotate freely 360 degrees around the central axis of the fixed base 1 in the rotating embedded hole 14. The U-shaped rotating groove 53 at the bottom of the rotating connector 5 is used to install the telescopic component 4.

[0055] A through hole 83 is provided at one end of the secondary main telescopic arm outer arm 81 in the secondary main telescopic arm 8 connected to the rotating connector 5. The secondary main telescopic arm outer arm 81 is arranged inside the U-shaped rotating slot 53 and is rotatably connected to the rotating connector 5 through the rotating shaft 6. The secondary main telescopic arm outer arm 81 can swing around the rotating shaft 6, which is equivalent to a swing rod. A secondary main telescopic arm inner arm 82 is telescopically arranged at one end of the secondary main telescopic arm outer arm 81 away from the rotating connector 5. The secondary main telescopic arm inner arm 82 can move within the secondary main telescopic arm outer arm 81 according to a fixed stroke to control the length of the secondary main telescopic arm 8.

[0056] A rotating support 84 is provided at one end of the secondary main telescopic arm inner arm 82 connected to the secondary secondary telescopic arm 9 .

[0057] The rotating support 84 includes a U-shaped seat body 85 and two parallel connecting shafts 86 arranged on the U-shaped seat body 85. The U-shaped seat body 85 is integrally or separately arranged with the secondary main telescopic arm inner arm 82 and fixedly connected, and is connected to the secondary secondary telescopic arm 9 through the connecting shaft 86.

[0058] Both ends of the secondary telescopic arm 9 are respectively provided with hinge rods 93, and the hinge rods 93 are provided with hinge holes 94. The hinge holes 94 are hinged to the connecting shaft 86, so that the secondary telescopic arm 9 can rotate relative to the secondary main telescopic arm 8.

[0059] Specifically, the upper end of the secondary telescopic arm outer arm 91 is provided with a hinge rod 93, and the lower end of the secondary telescopic arm inner arm 92 is provided with a hinge rod 93. A probe hinge seat 21 is provided on the outer arc surface of the SPECT probe 2, and the lower end of the secondary telescopic arm inner arm 92 is hinged to the probe hinge seat 21 on the SPECT probe 2 through a hinge hole 94 on the hinge rod 93.

[0060] The secondary telescopic arm inner arm 92 can move and rotate according to a fixed stroke in the secondary telescopic arm outer arm 91. The secondary telescopic arm 9 is designed in two groups, which are respectively hinged to the SPECT probe 2 through the secondary telescopic arm inner arm 92, so that the SPECT probe 2 can be pulled to change the position and angle.

[0061] like Figure 5 As shown, in this embodiment, when the patient 10 (only the upper body is shown for the sake of focusing on the schematic diagram) coincides with the axial direction of the neutron beam outlet 20, the secondary main telescopic arm and the two secondary secondary telescopic arms move together to align the scanning area of ​​the SPECT probe with the area to be detected of the patient 10, and the patient 10 lies on the bed 40, and the patient 10 is as close to the neutron beam outlet 7 as possible, that is, close to the wall 30.

[0062] like Figure 6 As shown, when the patient 10 forms a certain angle with the axial direction of the neutron beam outlet 20 , such as when the patient 10 forms a 30 degree angle with the axial direction of the neutron beam outlet 20 , the SPECT probe avoids interference with the wall 30 .

[0063] like Figure 7 As shown, when the patient 10 is perpendicular to the axial direction of the neutron beam outlet 20 , the SPECT probe 2 avoids interference with the wall 30 .

[0064] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above is only a part of the utility model rather than all embodiments, and is not used to limit the utility model. Any non-creative modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

[0065] The SPECT rack designed by the utility model uses a suspended rack to collect 478keV gamma information during BNCT treatment to monitor boron concentration. The mechanical structure of the previous ground-fixed rack circular scanning and the rocker rack is very different. This patent proposes that the SPECT rack structure can be easily adjusted according to the different treatment positions during BNCT treatment. In this embodiment, the rotation and swing of the SPECT probe 2 can be adjusted manually.

[0066] In another embodiment, the rotating connector can be driven by a motor to rotate in the fixed base, and the rotating connector and the fixed base can be directly connected through a bearing. The rotating connector drives the secondary main telescopic arm, the two secondary secondary telescopic arms and the SPECT probe to rotate together.

[0067] In another embodiment, the rotating shaft connects the rotating connector and the secondary main telescopic arm, so that the secondary main telescopic arm can swing around the rotating shaft under the control of a motor, and simultaneously drive the two secondary sub-telescopic arms and the SPECT probe to swing.

[0068] In another embodiment, the secondary main telescopic arm can swing around the rotation axis under the control of the rotating motor, and adjust the length under the control of the telescopic motor or hydraulics, and cooperate with the two secondary telescopic arms to adjust the SPECT probe to the target height and position. At the same time, when the SPECT rack is finished working, the SPECT rack can be stored in a high place without taking up space, which is convenient for patients to move around.

[0069] The secondary telescopic arm can control the swing of the SPECT probe driven by the telescopic motor and the rotary connector, so that the SPECT probe is placed in a position that does not hinder the treatment of the patient and is as close to the patient as possible.

[0070] The SPECT probe is used to collect 478keV instantaneous gamma signals emitted during BNCT treatment. The SPECT probe is provided with an arc-shaped field of view 22, which is designed as a semi-circular overall structure. The arc-shaped field of view 22 corresponds to the SPECT probe and may include multiple sets of detector modules. In order to reduce the uncertainty caused by the change of boron concentration with the acquisition time, the arc-shaped field of view 22 of the SPECT probe will not move after being aligned with the detected area, and will remain stationary to collect signals. Based on this, a positioning structure is also provided between the SPECT probe and the telescopic component, and the positioning structure may be any conventional positioning structure.

[0071] The collimator of the SPECT probe can be a multi-pinhole collimator, a cone beam collimator, a fan-shaped hole collimator, a parallel hole collimator, etc.

[0072] The detector crystal material of the SPECT probe can be semiconductor detectors such as CZT, CdTe, or scintillator detectors such as GAGG, LaBr3, etc. The detector of the SPECT probe needs to be arranged behind a light guide, a photomultiplier tube, a preamplifier, and a computing circuit.

[0073] The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy is light, flexible, and space-saving. The SPECT probe can be placed at any desired position through the rotating connector, rotating axis, secondary main telescopic arm, and two secondary secondary telescopic arms. It can adapt to signal acquisition under different treatment positions. After the treatment, the SPECT rack structure can be easily stored in a high space to facilitate patient movement. The SPECT probe is designed as a semi-annular structure, in which multiple groups of detector modules are arranged to collect signals statically, which can make the imaging process simpler and reduce the uncertainty caused by changes in boron concentration over acquisition time.

[0074] The SPECT rack has a flexible and lightweight structure and can be fixed on the ceiling, wall or movable suspension. It does not take up ground space and will not interfere with the treatment process. The position of the SPECT probe can be easily changed through the designed mechanical structure and simple control system, which can adapt to the signal acquisition under different treatment positions during SPECT treatment. After the treatment, the SPECT rack can also be conveniently stored to facilitate patient movement. The SPECT probe is designed to be semi-circular and remains stationary during the acquisition process, minimizing the uncertainty caused by the change of boron concentration over the acquisition time.

[0075] Save space. The SPECT probe can be placed at any desired position through the rotating connector, rotating axis, secondary main telescopic arm, and two secondary secondary telescopic arms. It can adapt to signal acquisition under different treatment positions. After the treatment, the SPECT rack structure can be easily stored in a high space to facilitate patient movement.

[0076] The above specific implementation modes / embodiments are specific implementation modes of the utility model, which are used to illustrate the concept of the utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation modes of the utility model and the scope of the utility model. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, and these technical solutions include any obvious replacement and modification of the embodiments described herein, which are within the protection scope of the utility model.

Claims

1. A SPECT rack for online monitoring of boron concentration during boron neutron capture therapy, comprising a fixed base (1), characterized in that: A telescopic SPECT probe (2) is rotatably connected to the fixed base (1), and the SPECT probe (2) is provided with an arc-shaped field of view (22) for annular static scanning.

2. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to claim 1, characterized in that: The telescopic SPECT probe (2) is connected to the fixed base (1) in a swinging manner via a rotating component (3).

3. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to claim 2, characterized in that: The rotating assembly (3) comprises a rotating connecting member (5) and a rotating shaft (6).

4. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to claim 3, characterized in that: The rotating connecting member (5) comprises a rotating member body (51) and a rotating embedded shaft (52); a U-shaped rotating slot (53) is provided at the lower end of the rotating member body (51); a rotating shaft hole (54) is provided on the slot wall of the U-shaped rotating slot (53); the rotating member body (51) and the rotating embedded shaft (52) are arranged in an integral manner or in a separate manner.

5. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to claim 3, characterized in that: The rotating connection member (5) is a rotating joint; or the rotating connection member (5) is a rotating seat.

6. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to claim 1, characterized in that: The telescopic SPECT probe (2) is telescopically arranged via a telescopic component (4).

7. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to claim 6, characterized in that: The telescopic assembly (4) comprises at least one set of telescopic arms (7).

8. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to claim 7, characterized in that: The telescopic arm (7) comprises a secondary main telescopic arm (8) and a secondary secondary telescopic arm (9) which are hingedly connected, and a shaft through hole (83) is provided on the secondary main telescopic arm (8).

9. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to claim 8, characterized in that: The secondary telescopic arm (9) is hingedly connected to the SPECT probe (2) and drives the SPECT probe (2) to change position and angle.

10. The SPECT rack for online monitoring of boron concentration during boron neutron capture therapy according to any one of claims 1 to 9, characterized in that: The fixed base (1) comprises a base flange (11) and a base body (12), wherein a base mounting hole (13) is provided on the base flange (11); and a rotation embedding hole (14) is provided on the base body (12).

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