Positron emission tomography scanner

Abstract

The utility model relates to a positron emission tomography scanner, which belongs to the technical field of positron emission tomography scanners and comprises a scanner body, a mounting seat arranged outside the scanner body, a base arranged on the lower surface of the mounting seat, a supporting plate fixedly connected to the top of the base and a controller fixedly arranged outside the supporting plate. A rotating mechanism is arranged outside the mounting seat, a moving mechanism is arranged on the upper surface of the base, and the rotating mechanism comprises a gear ring rotationally mounted outside the mounting seat, a gear connected to the outside of the gear ring in a meshed mode, a driving motor fixedly mounted on the back of the mounting seat and a limiting assembly arranged on the back of the gear ring. According to the positron emission tomography scanner, the controller starts the driving motor to work to drive the gear to rotate, so that the gear rotates to be meshed with the gear ring, annular driving of the scanner body is achieved, all-directional scanning of a patient is achieved, the imaging quality and the diagnosis accuracy are improved, and the advantage of high scanning efficiency is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of positron emission tomography, specifically to a positron emission tomography. BACKGROUND

[0002] The full name of positron emission computed tomography is: positron emission computed tomography, which is a relatively advanced clinical examination imaging technology in the field of nuclear medicine; PET uses annihilation radiation and positron collimation technology to non-invasively, quantitatively and dynamically measure the spatial distribution, quantity and dynamic changes of PET imaging agents or their metabolite molecules in vivo, and obtain the biochemical, physiological and functional metabolic changes of PET imaging agents and target points in vivo from the molecular level, providing important information for clinical research.

[0003] In the process of nuclear medicine scanner, positron emission tomography is needed, and the positron emission tomography is an important functional imaging device in nuclear medicine, which can perform early non-invasive diagnosis on cardiovascular and cerebrovascular diseases and tumor lesions. However, the existing positron emission tomography device can only perform fixed position scanning during scanning, and it is difficult to realize the all-around and multi-angle imaging of the patient, which limits its application in clinic to some extent, and cannot meet the use requirement, so a positron emission tomography is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a positron emission tomography which has the advantages of high scanning efficiency and strong practicability, solves the problem that the existing positron emission tomography device can only perform fixed position scanning during scanning, and it is difficult to realize the all-around and multi-angle imaging of the patient, which limits its application in clinic to some extent, and cannot meet the use requirement.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a positron emission tomography, comprising a scanner body, a mounting seat arranged outside the scanner body, a base arranged on the lower surface of the mounting seat, a supporting plate fixedly connected to the top of the base and a controller fixedly installed outside the supporting plate, a rotating mechanism is arranged outside the mounting seat, and a moving mechanism is arranged on the upper surface of the base.

[0006] The rotating mechanism comprises a gear ring rotatably installed outside the mounting seat, a gear meshedly connected to the outside of the gear ring, a driving motor fixedly installed at the back of the mounting seat and a limiting assembly arranged at the back of the gear ring.

[0007] The moving mechanism comprises a mounting box fixedly connected to the top of the base, a lead screw rotatably connected to the inside of the mounting box, a moving block threadedly connected to the outside of the lead screw and a driving mechanism arranged outside the mounting box.

[0008] Further, the inside of the mounting seat is provided with a movable opening matched with the supporting leg, the supporting leg is fixedly connected between the supporting leg and the base, the output shaft of the driving motor is fixedly connected with the shaft of the gear, and the scanner body is fixedly installed outside the gear ring.

[0009] Further, the limiting assembly comprises a limiting rod fixedly connected to the back of the gear ring and extending into the inside of the mounting seat, the inside of the mounting seat is provided with a sliding groove matched with the limiting rod, and the limiting rod and the sliding groove are in sliding connection.

[0010] Further, the number of the mounting box, the lead screw and the moving block is two, and the inside of the two mounting boxes is respectively fixedly provided with a bearing matched with the two lead screws.

[0011] Further, the mounting seat is fixedly connected to the upper surface of the two moving blocks, the bottom of the moving block is fixedly connected with a sliding block extending into the inside of the mounting box, the inside of the mounting box is fixedly provided with a sliding seat matched with the sliding block, and the sliding block and the sliding seat are in sliding connection.

[0012] Further, the driving mechanism comprises a reciprocating motor fixedly installed outside the right mounting box and a transmission wheel rotatably installed outside the two mounting boxes, and the reciprocating motor is electrically connected with the controller.

[0013] Further, the output shaft of the reciprocating motor is fixedly connected with the left end of the left lead screw, the two transmission wheels are fixedly connected with the ends of the two lead screws away from the mounting box, and the outer surfaces of the two transmission wheels are drivingly connected with a synchronous belt.

[0014] Compared with the prior art, the positron emission tomography scanner has the following beneficial effects:

[0015] 1. The positron emission tomography scanner, by the controller starting the driving motor to work to drive the gear to rotate, so that the gear is meshed with the gear ring, so that the annular driving of the scanner body is realized, so that the full-range scanning of the patient is realized, the imaging quality and the diagnostic accuracy are improved, and the high scanning efficiency is achieved.

[0016] 2. The positron emission tomography scanner, through the controller starts the reciprocating motor work drives the screw rod to reciprocate, so that the moving block drives the mounting seat and the scanner body move forward and backward, under the cooperation of the transmission wheel and the synchronous belt, realize the stable reciprocating movement of the scanner body in the front and back direction, through the cooperation of the rotating mechanism and the moving mechanism, realize the multidimensional driving of the scanner body, improve the imaging quality and the diagnostic accuracy, provide more reliable technical support for clinical diagnosis and treatment, reach the advantage that the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the structure perspective drawing of the utility model;

[0018] Fig. 2 It is the structure perspective drawing of the rotating mechanism of the utility model;

[0019] Fig. 3 It is the structure perspective drawing of the utility model Fig. 1 It is the enlarged structure schematic view of A shown in the utility model;

[0020] Fig. 4 It is the enlarged structure schematic view of B shown in the utility model. Fig. 2

[0021] In the drawing: 1, scanner body; 2, mounting seat; 3, base; 4, supporting plate; 5, controller; 6, rotating mechanism; 61, gear ring; 62, gear; 63, drive motor; 64, limit rod; 65, sliding slot; 7, moving mechanism; 71, mounting box; 72, screw rod; 73, moving block; 74, reciprocating motor; 75, transmission wheel; 76, synchronous belt. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0023] Please refer to Figs. 1 to 4 ​The positron emission tomography in the embodiment comprises a scanner body 1, a mounting seat 2 arranged outside the scanner body 1, a base 3 arranged at the lower surface of the mounting seat 2, a supporting plate 4 fixedly connected to the top of the base 3 and a controller 5 fixedly arranged outside the supporting plate 4, a rotating mechanism 6 arranged outside the mounting seat 2, a moving mechanism 7 arranged at the upper surface of the base 3, the rotating mechanism 6 comprises a gear ring 61 rotatably arranged outside the mounting seat 2, a gear 62 engagedly connected outside the gear ring 61, a driving motor 63 fixedly arranged at the back of the mounting seat 2 and a limiting assembly arranged at the back of the gear ring 61. The controller 5 can also set the scanning parameters of the scanner body 1, such as the scanning time, the scanning range and the like, and collect and analyze the scanning data in real time to provide accurate diagnostic information for doctors. The driving motor 63 is started to work by the controller 5 to drive the gear 62 to rotate, so that the gear 62 is engaged with the gear ring 61 to realize the annular driving of the scanner body 1, thereby realizing the omnidirectional scanning of the patient, improving the imaging quality and the diagnostic accuracy and achieving the advantage of high scanning efficiency.

[0024] The inside of the mounting seat 2 is provided with a movable opening matched with the supporting plate 4, supporting legs are fixedly connected between the supporting plate 4 and the base 3, the output shaft of the driving motor 63 is fixedly connected with the axis of the gear 62, and the scanner body 1 is fixedly arranged outside the gear ring 61.

[0025] Specifically, the limiting assembly comprises a limiting rod 64 fixedly connected to the back of the gear ring 61 and extending into the inside of the mounting seat 2, the inside of the mounting seat 2 is provided with a sliding groove 65 matched with the limiting rod 64, and the limiting rod 64 is slidingly connected with the sliding groove 65.

[0026] In the embodiment, the moving mechanism 7 comprises mounting boxes 71 fixedly connected to the top of the base 3, lead screws 72 rotatably connected inside the mounting boxes 71, moving blocks 73 threadedly connected outside the lead screws 72 and a driving mechanism arranged outside the mounting boxes 71.

[0027] The number of the mounting boxes 71, the lead screws 72 and the moving blocks 73 is two, and two bearings matched with the two lead screws 72 are fixedly arranged inside the two mounting boxes 71.

[0028] The mounting seat 2 is fixedly connected to the upper surfaces of the two moving blocks 73, the bottom of the moving block 73 is fixedly connected with a sliding block extending into the inside of the mounting box 71, the inside of the mounting box 71 is fixedly provided with a sliding seat matched with the sliding block, and the sliding block is slidingly connected with the sliding seat.

[0029] It needs to be explained that the drive mechanism includes a reciprocating motor 74 fixedly installed outside the right mounting box 71 and two transmission wheels 75 rotatably installed outside the two mounting boxes 71, and the reciprocating motor 74 is electrically connected with the controller 5. The reciprocating motor 74 is started to work by the controller 5 to drive the lead screw 72 to reciprocate, so that the moving block 73 drives the mounting seat 2 and the scanner body 1 to move back and forth, and under the cooperation of the transmission wheel 75 and the synchronous belt 76, the stable reciprocating movement of the scanner body 1 in the front-back direction is realized.

[0030] Moreover, the output shaft of the reciprocating motor 74 is fixedly connected with the left end of the left lead screw 72, the two transmission wheels 75 are fixedly connected with the ends of the two lead screws 72 away from the mounting box 71, and the outer surfaces of the two transmission wheels 75 are drivingly connected with the synchronous belt 76.

[0031] The working principle of the above embodiment is as follows:

[0032] In actual use, the patient is placed on the supporting plate 4, the drive motor 63 is started to work by the controller 5 to drive the gear 62 to rotate, so that the gear 62 rotates and meshes with the gear ring 61, thereby realizing the annular driving of the scanner body 1, thereby realizing the omnidirectional scanning of the patient, the reciprocating motor 74 is started to work by the controller 5 to drive the lead screw 72 to reciprocate, so that the moving block 73 drives the mounting seat 2 and the scanner body 1 to move back and forth, under the cooperation of the transmission wheel 75 and the synchronous belt 76, the stable reciprocating movement of the scanner body 1 in the front-back direction is realized, the cooperation of the rotating mechanism 6 and the moving mechanism 7 realizes the multidimensional driving of the scanner body 1, the controller 5 processes the data obtained by scanning to provide clear imaging results.

[0033] The mounting mode, connection mode or setting mode disclosed in the embodiment are all common mechanical connection modes, as long as the beneficial effects can be achieved, and moreover, the electrical elements appearing in the embodiment are all electrically connected with the master controller and the power supply, the master controller can be a conventional known device such as a computer which plays a control role, and the person skilled in the art can realize the control of the electrical elements through simple programming, and the existing disclosed power connection technology also belongs to the common knowledge in the art, so the specific structure composition and working principle of the embodiment will not be described in more detail.

[0034] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0035] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A positron emission tomograph, characterized by: The utility model relates to a kind of scanner, including scanner body (1), the mounting seat (2) being arranged at the outside of scanner body (1), the base (3) being arranged at the lower surface of mounting seat (2), the supporting plate (4) being fixedly connected at the top of base (3) and the controller (5) being fixedly installed at the outside of supporting plate (4), the outside of mounting seat (2) is provided with rotating mechanism (6), the upper surface of base (3) is provided with moving mechanism (7); The rotating mechanism (6) includes a gear ring (61) rotatably mounted outside the mounting seat (2), a gear (62) engagedly connected outside the gear ring (61), a drive motor (63) fixedly mounted at the back of the mounting seat (2), and a limiting assembly arranged at the back of the gear ring (61). The moving mechanism (7) includes a mounting box (71) fixedly connected to the top of the base (3), a lead screw (72) rotatably connected inside the mounting box (71), a moving block (73) threadedly connected outside the lead screw (72), and a driving mechanism arranged outside the mounting box (71).

2. A positron emission tomograph according to claim 1, characterized in that: The inside of the mounting seat (2) is provided with a movable opening matched with the supporting plate (4), supporting legs are fixedly connected between the supporting plate (4) and the base (3), the output shaft of the drive motor (63) is fixedly connected with the shaft of the gear (62), and the scanner body (1) is fixedly installed outside the gear ring (61).

3. A positron emission tomograph according to claim 1, characterized in that: The limiting assembly includes a limiting rod (64) fixedly connected to the back of the gear ring (61) and extending into the inside of the mounting seat (2), the inside of the mounting seat (2) is provided with a sliding groove (65) matched with the limiting rod (64), and the limiting rod (64) is slidingly connected with the sliding groove (65).

4. A positron emission tomograph according to claim 1, characterized in that: The number of the mounting box (71), the lead screw (72), and the moving block (73) is two, and two bearings matched with the two lead screws (72) are fixedly installed inside the two mounting boxes (71).

5. A positron emission tomograph according to claim 4, characterized in that: The mounting seat (2) is fixedly connected to the upper surface of the two moving blocks (73), the bottom of the moving block (73) is fixedly connected with a sliding block extending into the inside of the mounting box (71), the inside of the mounting box (71) is fixedly installed with a sliding seat matched with the sliding block, and the sliding block is slidingly connected with the sliding seat.

6. A positron emission tomograph according to claim 1, characterized in that: The driving mechanism includes a reciprocating motor (74) fixedly installed outside the right mounting box (71) and two transmission wheels (75) rotatably installed outside the two mounting boxes (71), and the reciprocating motor (74) is electrically connected with the controller (5).

7. A positron emission tomograph according to claim 6, characterized in that: The output shaft of the reciprocating motor (74) is fixedly connected with the left end of the left lead screw (72), the two transmission wheels (75) are fixedly connected with the ends of the two lead screws (72) away from the mounting box (71), and the outer surfaces of the two transmission wheels (75) are drivingly connected with a synchronous belt (76).

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