CN217793100U - Multi-detector ring PET (polyethylene terephthalate) rack - Google Patents

Abstract

The utility model relates to a many detectors ring PET frame, the technical field who relates to imaging device, it includes the frame body, a plurality of detector bodies and a plurality of detector ring, the frame body is the annular setting, a plurality of detector bodies horizontal sliding connection is in the frame body in proper order, a plurality of detector rings set up respectively in the outside of a plurality of detector bodies and lie in same one side, and be provided with the annular that supplies detector ring embedding joint and conflict previous detector ring on the adjacent detector body, all be provided with the locking mechanical system who is used for locking the two connected state between the adjacent a pair of detector body both sides. This application is located the detector in the detector body outside through setting up the detector ring, makes the detector ring outside not have and shelters from, and the staff maintains the detector ring when the detector ring breaks down.

Description

Multi-detector ring PET (polyethylene terephthalate) rack

Technical Field

The present application relates to the field of imaging devices, and more particularly, to a multi-detector ring PET gantry.

Background

The axial visual field range is an important index of PET, the axial visual field range of the traditional PET is usually not more than 30cm, a patient needs to move a plurality of beds in the data acquisition process, images need to be spliced in the later period, and if the patient moves in the moving process, the reconstructed images are easy to generate faults. Meanwhile, limited by a narrow axial view angle, the data volume acquired by PET is correspondingly small, and the acquisition time needs to be increased to obtain enough reconstruction data. The problem can be improved by increasing the axial length, but the axial length of a single detector cannot be too long, otherwise higher requirements are imposed on the design and reliability of the product, and therefore, the axial splicing mode of a plurality of detectors is generally adopted in the industry to increase the axial length.

The continuity of image is guaranteed to many detector ring PET, and a plurality of detector rings need guarantee between the detector ring zonulae occludens at the in-process of axial concatenation, in current design, arrange the center of frame with the detector ring usually, and peripheral device is arranged around the detector ring, and the connection of detector ring can be guaranteed in this kind of design, but can lead to the maintenance of detector ring comparatively difficult, awaits improvement.

SUMMERY OF THE UTILITY MODEL

To facilitate maintenance of the detector rings, the present application provides a multi-detector ring PET gantry.

The application provides a many detectors ring PET frame adopts following technical scheme:

the utility model provides a many detectors ring PET frame, includes frame body, a plurality of detector body and a plurality of detector ring, the frame body is the annular setting, and is a plurality of detector body horizontal sliding connection in proper order in the frame body, it is a plurality of the detector ring sets up respectively in a plurality of the outside of detector body lies in same one side, and adjacent be provided with the confession on the detector body detector ring embedding joint and conflict one-front the annular of detector ring, adjacent a pair of all be provided with the locking mechanical system who is used for locking the two connection status between the detector body both sides.

Through adopting above-mentioned technical scheme, lie in the detector body outside through setting up the detector ring, make the detector ring outside not shelter from, the staff maintains the detector ring when the detector ring breaks down be convenient for.

Optionally, locking mechanism includes wedge and locking piece, one detector body side is provided with the mounting groove, just it is a pair of to be provided with the confession on the both sides wall of mounting groove the locking piece imbeds the locking groove that slides respectively, it is used for driving a pair ofly all to lock the inslot locking spring that the locking piece slided to one side of being close to each other, the wedge sets up in another detector body is last and be used for imbedding the mounting groove, the locking piece is used for the joint locking the wedge, the mounting groove is provided with and is used for driving a pair ofly the locking piece slides and removes to one side of keeping away from each other and is right the actuating mechanism of wedge lock state.

Through adopting above-mentioned technical scheme, when connecting adjacent detector ring, at first utilize a pair of locking block of actuating mechanism drive to slide to the one side of keeping away from each other, drive the detector body and slide along the frame body afterwards and make the detector ring embedding that is located the rear side set up in the annular of front side, wedge embedding mounting inslot this moment, remove actuating mechanism later on, the locking block removes and locks the wedge to the one side that is close to each other under the effect of locking spring this moment, guarantee the stable connection between the detector body, and then guarantee seamless connection between the detector ring, guarantee the continuity and the integrality of formation of image. Through setting up simple structure and job stabilization's locking mechanical system, realized the stable connection between the detector body, and then guaranteed seamless connection's between the detector ring stability, effectively guaranteed the continuity and the integrality of formation of image.

Optionally, actuating mechanism includes actuating lever and a pair of driving rope, the actuating lever level set up in the mounting groove and with the mounting groove rotates to be connected, be provided with a pair of wire winding roller on the actuating lever, it is a pair of the one end of driving rope twines respectively in a pair of on the wire winding roller, the other end respectively with a pair of locking block fixed connection, just both ends all are provided with the confession in the mounting groove the pulley that the driving rope strides, and a pair of the pulley is relative respectively the locking block with the actuating lever sets up, actuating lever one end extends to this external driving hand wheel that is provided with of detector.

Through adopting above-mentioned technical scheme, when maintaining the detector ring to embedding annular, only need to control the actuating lever rotation through the driving hand wheel, make the driving rope carry out the rolling along the winding roller, and then the one side that a pair of locking piece of drive was kept away from each other slides, makes the locking piece shrink in locking inslot, removes the locking state to the wedge, drives the detector body afterwards and makes detector ring and annular break away from, and the detector ring exposes in the outside this moment, and the staff can maintain it. Through setting up simple structure and job stabilization's actuating mechanism, realized the convenient of locking piece to the wedge piece locking state and removed, and then realized the convenient of annular and detector ring and break away from, the staff of being convenient for maintains the detector ring.

Optionally, a polygonal sliding sleeve is disposed in the middle of the driving handwheel, the driving rod penetrates through the sliding sleeve and is slidably connected therewith, and a polygonal sliding groove for allowing the sliding sleeve to be embedded and locked is disposed on the detector body.

Through adopting above-mentioned technical scheme, use sliding sleeve and spout through setting up with actuating lever sliding connection's drive hand wheel and mutually supporting, both realized the convenient drive of actuating lever and realized the locking of actuating lever again for single breaking away from that can realize adjacent detector.

Optionally, the driving handwheel can be replaced by a driving motor, and a control screen for controlling the driving motor to act is arranged on the rack body.

Through adopting above-mentioned technical scheme, through setting up driving motor and rather than matched with control panel, realized the convenient rotary drive of actuating lever.

Optionally, the two sides of the bottom of the frame body are both provided with slide rails, the top of the frame body is also provided with slide rails, a slide block matched with the slide rails for use is arranged at a corresponding position on the detector body, and a counterweight ring used for balancing the weight of the detector ring is arranged on one side of the detector body, which deviates from the detector ring, along the circumferential direction of the detector ring.

By adopting the technical scheme, the stability of sliding connection between the frame body and the detector body is ensured by arranging the sliding block and the sliding rail which simultaneously support the bottom and the top of the detector body, and meanwhile, the balance weight ring which balances the weight of the detector ring is arranged, so that the whole gravity center of the detector is ensured to be positioned at the central position of the detector body, the whole balance of the detector is ensured, and the whole normal working state of the frame is effectively ensured.

Optionally, the bottom both sides of frame body all are provided with the slide rail, the top of frame body also is provided with the slide rail, it is provided with both sides to correspond the position on the detector body the slide rail slide block that cooperatees and use, the detector ring deviates from a pot head of frame body is equipped with rings, and the rings top is provided with and the top the slide rail slide block that cooperatees and use, detector body top is provided with the auxiliary tank that supplies rings embedding to slide.

Through adopting above-mentioned technical scheme, carry out the slider and the slide rail that support to detector body bottom through the setting, guaranteed sliding connection's between frame body and the detector body stability, carry out the rings of hoist and mount to the detector ring through the setting simultaneously, avoided the slope of detector ring and detector body, guaranteed the holistic balance of detector, and then effectively guaranteed the holistic normal operating condition of frame.

Optionally, the width of the detector ring is greater than the depth of the ring groove.

Through adopting above-mentioned technical scheme, be less than the annular of detector ring width through the degree of depth for certain intermittent type is left to adjacent detector body, and the later stage of being convenient for installs relevant heat dissipation pipelines such as water-cooling as required.

Optionally, two sides of the detector body are provided with driving rings for driving the detector body to slide along the rack body.

Through adopting above-mentioned technical scheme, through setting up the drive ring, the staff of being convenient for controls the detector body and slides along the frame body.

In summary, the present application includes at least one of the following beneficial technical effects:

the detector ring is arranged on the detector positioned on the outer side of the detector body, so that the outer part of the detector ring is not shielded, and a worker can conveniently maintain the detector ring when the detector ring breaks down;

by arranging the locking mechanism which is simple in structure and stable in working, stable connection between the detector bodies is realized, the stability of seamless connection between the detector rings is further ensured, and the continuity and integrity of imaging are effectively ensured;

through setting up simple structure and job stabilization's actuating mechanism, realized the convenient of locking piece to the wedge piece locking state and removed, and then realized the convenient of annular and detector ring and break away from, the staff of being convenient for maintains the detector ring.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is a schematic view of the connection relationship between the probe bodies in embodiment 1 of the present application.

Fig. 3 is a partially enlarged schematic view of the area a in fig. 2.

Fig. 4 is a schematic view of the connection relationship between the driving handwheel and the probe body in embodiment 1 of the present application.

Fig. 5 is a schematic view of the connection relationship between the drive rod and the drive handwheel in embodiment 1 of the present application.

Fig. 6 is a schematic view of the overall structure of embodiment 2 of the present application.

Description of reference numerals: 1. a rack body; 11. a slide rail; 2. a probe body; 21. a slider; 22. a ring groove; 23. mounting grooves; 231. a locking groove; 232. a locking spring; 233. a pulley; 24. a chute; 25. a drive ring; 26. a counterweight ring; 27. an auxiliary groove; 3. a detector ring; 4. a locking mechanism; 41. a wedge block; 42. a locking block; 5. a drive mechanism; 51. a drive rod; 511. a winding roller; 512. a connecting rod; 52. a drive rope; 6. driving a hand wheel; 61. a sliding sleeve; 7. a drive motor; 8. a control screen; 9. a lifting ring.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment 1 of the application discloses a multi-detector ring PET rack.

Referring to fig. 1, a multi-detector ring PET gantry includes a gantry body 1, a plurality of detector bodies 2, and a plurality of detector rings 3 arranged in an annular shape.

Referring to fig. 1, a rack body 1 is horizontally arranged, a plurality of detector bodies 2 are sequentially arranged in the rack body 1, slide rails 11 are arranged on two sides of the bottom of the rack body 1, the slide rails 11 are also arranged on the top of the rack body 1, and slide blocks 21 matched with the slide rails 11 for use are arranged on the detector bodies 2 in corresponding positions, so that the detector bodies 2 and the rack body 1 are stably and horizontally connected.

Referring to fig. 1, a plurality of detector rings 3 set up respectively in the outside of a plurality of detector bodies 2 and lie in same one side, one side that detector body 2 deviates from detector ring 3 is provided with the annular 22 that supplies adjacent detector ring 3 embedding joint and conflict preceding detector ring 3, and the width of detector ring 3 is greater than the degree of depth of annular 22, so that leave certain space between the adjacent detector body 2, be convenient for staff's later stage as required installation water-cooling etc. relevant heat dissipation pipe.

Referring to fig. 1, a counterweight ring 26 for balancing the weight of the detector ring 3 is arranged along the circumferential direction of one side of the detector body 2 away from the detector ring 3, so as to ensure that the center of gravity of the whole detector is located at the center of the detector body 2, and further ensure the balance of the whole detector.

Referring to fig. 2 and 3, a locking mechanism 4 is arranged between two sides of each adjacent pair of detector bodies 2, and the locking mechanism 4 is used for locking the connection state of the adjacent detector bodies 2, so that the stability of the connection state between the adjacent detector rings 3 is ensured, and the integrity and continuity of imaging are ensured. The locking mechanism 4 includes a wedge block 41 and a pair of locking blocks 42.

Referring to fig. 2 and 3, a mounting groove 23 is formed in a side surface of one of the probe bodies 2, locking grooves 231 are formed in both upper and lower side walls of the mounting groove 23 along a length direction of the mounting groove, a pair of locking blocks 42 are relatively embedded in the pair of locking grooves 231, one ends of the locking blocks are close to ports of the mounting groove 23, and are vertically slidably connected with the locking grooves 231, locking springs 232 are respectively arranged in the pair of locking grooves 231, and the locking springs 232 are used for driving the pair of locking blocks 42 to vertically slide to a side close to each other.

Referring to fig. 2 and 3, the wedge block 41 is disposed on the other detector body 2, the wedge block 41 is used for being inserted into the mounting groove 23, and the pair of locking blocks 42 is used for clamping and locking the wedge block 41 inserted into the mounting groove 23, so that stable connection between the adjacent detector bodies 2 is realized, and the connection tightness between the adjacent detector rings 3 is ensured.

Referring to fig. 2 and 3, the mounting groove 23 is provided with a driving mechanism 5 for driving the pair of locking blocks 42 to slide away from each other and releasing the locking state of the pair of wedge blocks 41. The drive mechanism 5 includes a drive lever 51 and a pair of drive cords 52.

Referring to fig. 3, a driving rod 51 is horizontally disposed at one end of the mounting groove 23 far from the pair of locking blocks 42 and rotatably connected to the mounting groove 23, a pair of winding rollers 511 is disposed on the driving rod 51, one end of the pair of driving ropes 52 is wound around the pair of winding rollers 511, the other end is fixedly connected to the pair of locking blocks 42, pulleys 233 over which the driving ropes 52 pass are disposed at both ends of the mounting groove 23, and the pair of pulleys 233 are disposed opposite to the locking blocks 42 and the driving rod 51, respectively, so that the pair of locking blocks 42 are driven to slide to the side far from each other by simultaneously winding the pair of driving ropes 52 on the pair of winding rollers 511, thereby releasing the locking state of the wedge block 41.

Referring to fig. 4 and 5, one end of the driving rod 51 extends to the outside of the detector body 2 and is provided with a driving hand wheel 6, one end of the driving rod 51 extending to the detector body 2 is provided with a polygonal connecting rod 512, the middle part of the driving hand wheel 6 is provided with a polygonal sliding sleeve 61 for the connecting rod 512 to penetrate through, and the detecting body is provided with a polygonal sliding groove 24 for the sliding sleeve 61 to be embedded and locked, so that the driving rod 51 can be conveniently and quickly locked while the driving rod 51 is conveniently and rotationally driven.

Therefore, when the detector ring 3 embedded in the ring groove 22 is maintained, the driving hand wheel 6 is controlled to slide outwards firstly, so that the sliding sleeve 61 and the sliding groove 24 are separated, then the driving hand wheel 6 is rotated, the driving hand wheel 6 drives the driving rod 51 to rotate and the driving rope 52 is wound along the winding roller 511, then the pair of locking blocks 42 are driven to slide towards the sides far away from each other, so that the locking blocks 42 are contracted in the locking grooves 231, the locking state of the wedge-shaped block 41 is released, then the driving hand wheel 6 is controlled to slide inwards and embedded in the sliding groove 24 again, the locking of the driving hand wheel 6 and the driving rod 51 is realized, finally the adjacent detector bodies 2 are controlled to slide towards the sides far away from each other, so that the detector ring 3 is exposed outside, and at the moment, a worker can maintain along with the detector ring.

Referring to fig. 1, two sides of the detector body 2 are provided with driving rings 25 for driving the detector body 2 to slide along the rack body 1, so that a worker can drive the detector body 2 to slide along the rack body 1.

The implementation principle of the multi-detector ring PET rack in embodiment 1 of the application is as follows: when the detector ring 3 is maintained, the driving hand wheel 6 is firstly controlled to slide outwards, the sliding sleeve 61 and the sliding groove 24 are separated, then the driving hand wheel 6 is rotated, the driving hand wheel 6 drives the driving rod 51 to rotate and enables the driving rope 52 to be wound along the winding roller 511, and then the pair of locking blocks 42 are driven to slide towards one side far away from each other, the locking blocks 42 are contracted in the locking grooves 231, the locking state of the wedge-shaped blocks 41 is relieved, then the driving hand wheel 6 is controlled to slide inwards again and embedded into the sliding groove 24, locking of the driving hand wheel 6 and the driving rod 51 is realized, the adjacent detector bodies 2 are controlled to slide towards one side far away from each other later, the detector ring 3 is exposed outside, and the working personnel can carry out the maintenance.

When the maintenance work of the detector ring 3 is completed, the detector body 2 is controlled to slide along the rack body 1, the maintained detector ring 3 is embedded into the sliding groove 24 again, the wedge block 41 is embedded into the mounting groove 23 again, then the driving hand wheel 6 is operated again to unreel the driving rope 52 on the winding roller 511, the pair of locking blocks 42 slide to the side close to each other under the action of the locking spring 232 and lock the wedge block 41, the reconnection of the adjacent detector bodies 2 is realized, the maintained detector ring 3 is stably connected with the front detector ring 3, and finally the maintenance work of the detector ring 3 is completed.

The embodiment 2 of the application discloses many detector ring PET frame, the difference with embodiment 1 lies in:

referring to fig. 6, both sides of the bottom of the rack body 1 are provided with slide rails 11, the top of the rack body 1 is also provided with slide rails 11, and the corresponding positions of both sides of the bottom on the detector body 2 are provided with slide blocks 21 matched with the slide rails 11 on both sides for use, and one end of the detector ring 3 departing from the rack body 1 is provided with a hanging ring 9, and the top of the hanging ring 9 is provided with the slide block 21 matched with the slide rails 11 on the top for use, the top of the detector body 2 is provided with an auxiliary groove 27 for the hanging ring 9 to wear to establish horizontal sliding, so as to hoist and support the detector ring 3, prevent the detector ring 3 and the detector body 2 from inclining, and further guarantee the stable horizontal sliding connection of the detector body 2 and the rack body 1.

Referring to fig. 6, a driving motor 7 connected to the driving rod 51 is disposed on the frame body 1 to drive the driving rod 51 to move through the driving motor 7, so as to realize convenient control of winding and unwinding of the driving rope 52. Meanwhile, a control screen 8 is arranged on the rack body 1, so that the convenient rotation control of the driving motor 7 is realized through the control screen 8.

The implementation principle of the multi-detector-ring PET rack in embodiment 2 of the application is as follows: when the detector ring 3 is maintained, firstly, the control screen 8 controls the driving motor 7 to act, so as to drive the driving rod 51 to rotate and enable the driving rope 52 to be wound along the winding roller 511, and further the pair of locking blocks 42 are driven to slide towards the sides far away from each other, so that the locking blocks 42 are contracted in the locking grooves 231, the locking state of the wedge-shaped blocks 41 can be released, and later, the adjacent detector bodies 2 are controlled to slide towards the sides far away from each other, so that the detector ring 3 is exposed to the outside, and at the moment, a worker can do the operation.

When the maintenance work of the detector ring 3 is finished, the detector body 2 is controlled to slide along the rack body 1, the maintained detector ring 3 is embedded into the sliding groove 24 again, the wedge block 41 is embedded into the mounting groove 23 again, then the driving motor 7 is controlled to act through the control screen 8 again, the driving rope 52 is unreeled on the winding roller 511, the pair of locking blocks 42 slide to one side close to each other under the action of the locking spring 232 and lock the wedge block 41, the reconnection of the adjacent detector bodies 2 is realized, the maintained detector ring 3 is further stably connected with the front detector ring 3, and finally the maintenance work of the detector ring 3 is finished.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A multi-detector ring PET gantry comprising a gantry body (1), a plurality of detector bodies (2) and a plurality of detector rings (3), characterized in that: frame body (1) is the annular and sets up, and is a plurality of detector body (2) horizontal sliding connection in proper order in frame body (1), and is a plurality of detector ring (3) set up respectively in a plurality of the outside of detector body (2) lies in same one side, and adjacent be provided with the confession on detector body (2) detector ring (3) embedding joint and conflict the previous annular (22) of detector ring (3), adjacent a pair of all be provided with between detector body (2) both sides and be used for locking the locking mechanical system (4) of the two connected state.

2. A multi-detector ring PET gantry according to claim 1, characterized in that: locking mechanical system (4) are including wedge (41) and locking block (42), one detector body (2) side is provided with mounting groove (23), just it is a pair of to be provided with the confession on the both sides wall of mounting groove (23) locking block (42) imbed locking groove (231) that slides respectively, it is a pair of all to be provided with in locking groove (231) to be used for driving locking block (42) to being close to locking spring (232) that one side slided each other, wedge (41) set up in another detector body (2) are gone up and are used for imbedding in mounting groove (23), locking block (42) are used for the joint locking wedge (41), mounting groove (23) are provided with and are used for driving a pair ofly locking block (42) are slided and are relieved to one side of keeping away from each other wedge (41) lock state's actuating mechanism (5).

3. A multi-detector ring PET gantry according to claim 2, characterized in that: actuating mechanism (5) include actuating lever (51) and a pair of driving rope (52), actuating lever (51) level set up in mounting groove (23) and with mounting groove (23) rotate to be connected, be provided with a pair of wire winding roller (511) on actuating lever (51), it is a pair of the one end of driving rope (52) twines respectively in a pair of on wire winding roller (511), the other end respectively with a pair of locking block (42) fixed connection, just both ends all are provided with the confession in mounting groove (23) pulley (233) that driving rope (52) strided across, and a pair of pulley (233) are relative respectively locking block (42) with actuating lever (51) set up, actuating lever (51) one end extend to outside detector body (2) and be provided with driving hand wheel (6).

4. A multi-detector ring PET gantry according to claim 3, characterized in that: a polygonal sliding sleeve (61) is arranged in the middle of the driving hand wheel (6), the driving rod (51) penetrates through the sliding sleeve (61) and is in sliding connection with the sliding sleeve, and a polygonal sliding groove (24) for embedding and locking the sliding sleeve (61) is formed in the detector body (2).

5. A multi-detector ring PET gantry according to claim 3, characterized in that: the driving hand wheel (6) can be replaced by a driving motor (7), and a control screen (8) for controlling the driving motor (7) to act is arranged on the rack body (1).

6. A multi-detector ring PET gantry according to claim 1, characterized in that: the bottom both sides of frame body (1) all are provided with slide rail (11), the top of frame body (1) also is provided with slide rail (11), just corresponding the position on detector body (2) be provided with slide rail (11) slide block (21) that cooperate and use, just detector body (2) deviate from one side of detector ring (3) is provided with along its circumference and is used for right detector ring (3) weight carries out the counter weight ring (26) balanced.

7. A multi-detector ring PET gantry according to claim 1, characterized in that: the bottom both sides of frame body (1) all are provided with slide rail (11), the top of frame body (1) also is provided with slide rail (11), it is provided with both sides to correspond the position on detector body (2) slide rail (11) the slider (21) that cooperate and use, detector ring (3) deviate from a pot head of frame body (1) is equipped with rings (9), and rings (9) top be provided with the top slide rail slider (21) that cooperate and use, detector body (2) top is provided with auxiliary tank (27) that supply rings (9) embedding to slide.

8. A multi-detector ring PET gantry according to claim 1, characterized in that: the width of the detector ring (3) is larger than the depth of the ring groove (22).

9. A multi-detector ring PET gantry according to claim 1, characterized in that: and driving rings (25) used for driving the detector body (2) to slide along the rack body (1) are arranged on two sides of the detector body (2).

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