阅读说明：本技术 一种磁兼容全数字固体pet探测器 (Magnetic compatibility all-digital solid PET detector ) 是由 游志远 于 2020-04-16 设计创作，主要内容包括：本发明提供一种磁兼容全数字固体PET探测器,包括用于支撑设备的空心底座、用于安装和支撑设备的圆机架、用于进行探测工作的探测机构和用于对活动状态下并且非固定圆环的探测结构进行接触式降温的自适应活动降温机构,所述圆机架固定连接在空心底座的上方,所述探测机构设置在圆机架上,涉及医疗领域。该磁兼容全数字固体PET探测器根据现有的PET探测器存在的散热问题,设计出可以针对活动状态下的探测环,对局部狭小空间进行接触式换热的特殊结构,集中多级散热,解决了一般的PET探测器主要发热器件集中在探测环上,热量集中难以散失,尤其是狭小空间热量容易堆积,非接触式散热效率较低,不利于探测器高效持续使用的问题。(The invention provides a magnetic compatible all-digital solid PET (positron emission tomography) detector, which comprises a hollow base for supporting equipment, a circular rack for installing and supporting the equipment, a detection mechanism for performing detection work and a self-adaptive movable cooling mechanism for performing contact cooling on a detection structure of a non-fixed circular ring in a movable state, wherein the circular rack is fixedly connected above the hollow base, and the detection mechanism is arranged on the circular rack, and relates to the field of medical treatment. This magnetic compatibility all-digital solid PET detector is according to the heat dissipation problem that current PET detector exists, designs out and to surveying the ring under the active state, carries out the special construction of contact heat transfer to the narrow and small space in part, concentrates multistage heat dissipation, has solved general PET detector and has mainly generated heat the device and concentrate on surveying the ring, and the heat is concentrated and is difficult to scatter and disappear, and especially narrow and small space heat is piled up easily, and non-contact radiating efficiency is lower, is unfavorable for the high-efficient problem that lasts the use of detector.)

1. A magnetic compatible all-digital solid PET detector is characterized in that: including hollow base (1) that is used for the support equipment, circle frame (2) that is used for installation and support equipment, be used for surveying detection mechanism (3) of work and be used for carrying out self-adaptation activity cooling mechanism (4) that the contact was cooled down to the detection structure of non-stationary ring under the active condition, circle frame (2) fixed connection is in the top of hollow base (1), detection mechanism (3) set up on circle frame (2), self-adaptation activity cooling mechanism (4) set up the inside at circle frame (2), the surface of circle frame (2) is the first annular form, the inside of circle frame (2) is hollow form, circle frame (2) inboard is personally submitted and is opened the form.

2. A magnetically compatible all-digital solid-state PET detector as claimed in claim 1, wherein: the detection mechanism (3) comprises a plurality of single crystals (31), photomultiplier tubes (32), a support ring (33), a plurality of blocking strips (34), a support rod (35), a connecting rod (36), a connecting groove (37), a connecting block (38), a plurality of wrapping copper plates (39) in one-to-one correspondence with the single crystals (31), a large bearing (310) and a motor (311), wherein the surface of the circular frame (2) is fixedly connected with the large bearing (310), the inner ring of the large bearing (310) is fixedly connected with the connecting rods (36), the connecting groove (37) is formed in the surface of the connecting rod (36), the surface of the single crystals (31) is fixedly connected with the wrapping copper plates (39), the surface of the wrapping copper plates (39) is fixedly connected with the connecting block (38), the surface of the connecting block (38) is inserted into the inner wall of the connecting groove (37), and the surface of the connecting block (38) and the inner wall of the connecting groove, the single crystals (31) and the connecting rods (36) are distributed in a staggered mode.

3. A magnetically compatible all-digital solid-state PET detector as claimed in claim 2, wherein: the fixed surface of single crystal (31) installs a plurality of photomultiplier (32), support ring (33) cup joint on the medial surface of circle frame (2), the fixed surface of support ring (33) is connected with bracing piece (35), the fixed surface of bracing piece (35) is connected with the fixed surface of circle frame (2), the fixed surface of support ring (33) is connected with a plurality of and hides bar (34), the interval that hides bar (34) is less than the width of photomultiplier (32).

4. A magnetically compatible all-digital solid-state PET detector as claimed in claim 3, wherein: the motor (311) is fixedly installed on the surface of the circular rack (2), a gear disc (312) is fixedly connected to an output shaft of the motor (311), and gear teeth which are matched and meshed with gears on the surface of the gear disc (312) are arranged on the side face of the inner ring of the large bearing (310).

5. A magnetically compatible all-digital solid-state PET detector as claimed in claim 4, wherein: the self-adaptive movable cooling mechanism (4) comprises a first refrigeration semiconductor (41), a second refrigeration semiconductor (42), a plurality of contact cooling sheets (43), a plurality of flexible plastic rings (44) and a plurality of refrigeration rods (45), the first refrigeration semiconductor (41) is fixedly arranged on the inner wall of the circular frame (2), the second refrigeration semiconductor (42) is fixedly connected to the first refrigeration semiconductor (41), the surfaces of the first refrigerating semiconductor (41) and the second refrigerating semiconductor (42) are in a ring shape, the inner wall of the second refrigeration semiconductor (42) is fixedly connected with a plurality of contact cooling fins (43), the surfaces of the contact cooling sheets (43) are arc-shaped, a plurality of contact cooling sheets (43) are circumferentially distributed on the surface of the second refrigeration semiconductor (42), and a plurality of air holes (46) are formed in the surface of the second refrigeration semiconductor (42).

6. A magnetically compatible all-digital solid-state PET detector as claimed in claim 5, wherein: one end of each refrigerating rod (45) is fixedly connected with the surface of the first refrigerating semiconductor (41), a plurality of refrigerating rods (45) are distributed on the surface of the first refrigerating semiconductor (41) in a circumferential manner, the surface of each refrigerating rod (45) is fixedly connected with a small bearing (47), an inner supporting ring (48) is sleeved on the outer ring of each small bearing (47), a plurality of spring wires (49) which are respectively arranged on the surfaces of the inner supporting rings are fixedly connected with the surface of the inner supporting ring (48), one end, far away from the inner supporting ring (48), of each spring wire (49) is fixedly connected with the inner side surface of the flexible plastic ring (44), the spring wires (49) and the flexible plastic ring (44) are made of spring steel, the inner supporting ring (48) is made of copper, a plurality of sleeve rods (410) are fixedly connected with the surface of the flexible plastic ring (44), and contact heat exchange balls (411) are connected with the surface of the sleeve rods (410) in a rolling manner, the contact heat exchange ball (411) is made of a copper ball, and the surface of the wrapping copper plate (39), the surface of the connecting rod (36) and the surface of the contact cooling sheet (43) are in rolling connection with the surface of the contact heat exchange ball (411).

7. A magnetically compatible all-digital solid-state PET detector as claimed in claim 6, wherein: the inside fixed mounting of hollow base (1) has fan (5), through-hole (6) have been seted up to the bottom of circle frame (2), through-hole (6) communicate hollow base (1) with the inside of circle frame (2), tuber pipe (7) have been cup jointed on the surface of circle frame (2), operation mouth (8) have been seted up on the surface of circle frame (2), the surface grafting of operation mouth (8) has arc picture peg (9).

Technical Field

The invention relates to the technical field of medical treatment, in particular to a magnetic compatible all-digital solid PET detector.

Background

Injecting isotope-labeled drugs with positron emission into a living body by a PET detector, wherein the drugs generate annihilation effect in the process of participating in the physiological metabolism of the living body and generate two gamma-ray photon quanta which emit along 180 degrees and have energy of 0.511MeV and move oppositely to each other; according to different capacities of different parts of an organism for absorbing the labeled compound, the concentration degree of isotopes at each part in the organism is different, and the intensity of photons generated by annihilation reaction is different; therefore, the PET detector surrounding the organism can detect the time, the position, the quantity and the direction of photons released by the organism, the optical signal is converted into a time pulse signal through the photomultiplier, the information is acquired, stored, operated, subjected to digital/analog conversion and image reconstruction through a computer system, so as to obtain the image of the corresponding organ of the organism, the detection ring on the PET detector slowly rotates when in use, the internal devices can generate heat in the working process, the current cooling mode of the components on the detection ring is mainly realized by wind power heat dissipation, and because the constant movement is required, the contact type heat exchange of the complex narrow space is difficult to realize, the contact type heat exchange reduces the process of heat transfer of an intermediate medium, the efficiency is high, the energy is saved, and the existing detection ring is in an integral ring shape, the heat that produces disperses in the comparatively bellied place of each narrow and small space department easily, and general PET detector mainly generates heat the device and concentrates on detecting the ring, and the heat is concentrated and is difficult to scatter and disappear, and especially narrow and small space heat piles up easily, and non-contact radiating efficiency is lower, is unfavorable for the high-efficient continuous use of detector, so needs a magnetic compatibility all-digital solid PET detector.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a magnetic compatible all-digital solid PET detector, which solves the problems that the main heating devices of the common PET detector are concentrated on a detection ring, the heat is concentrated and difficult to dissipate, especially, the heat is easy to accumulate in a narrow space, the non-contact heat dissipation efficiency is lower, and the efficient and continuous use of the detector is not facilitated.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a compatible all-digital solid PET detector of magnetism, is including the hollow base that is used for the support device, the circle frame that is used for installation and support device, the detection mechanism that is used for surveying work and be used for carrying out the self-adaptation activity cooling mechanism that the contact was cooled down to the detection structure of non-stationary ring under the active condition, circle frame fixed connection is in the top of hollow base, detection mechanism sets up in the circle frame, self-adaptation activity cooling mechanism sets up the inside in the circle frame, the surface of circle frame is the first annular form, the inside of circle frame is hollow form, the inboard of circle frame is personally submitted openly and is described.

Preferably, the detection mechanism includes parcel copper, big bearing and the motor of a plurality of single crystal, photomultiplier, support ring, a plurality of shielding strip, bracing piece, connecting rod, spread groove, connecting block, a plurality of and single crystal one-to-one, the big bearing of fixed surface of circle frame, the inner circle fixedly connected with a plurality of connecting rod of big bearing, the spread groove has been seted up on the surface of connecting rod, the fixed surface of single crystal is connected with the parcel copper, the fixed surface of parcel copper is connected with the connecting block, the surface of connecting block is pegged graft with the inner wall of spread groove, the surface of connecting block and the inner wall of spread groove all are the trapezoidal form, the single crystal distributes with the connecting rod is crisscross.

Preferably, the fixed surface of single crystal installs a plurality of photomultiplier, the support ring cup joints on the medial surface of circle frame, the fixed surface of support ring is connected with the bracing piece, the fixed surface of bracing piece is connected with the fixed surface of circle frame, the fixed surface of support ring is connected with a plurality of and hides the strip, the interval that hides the strip is less than photomultiplier's width.

Preferably, the motor is fixedly installed on the surface of the circular frame, a gear disc is fixedly connected to an output shaft of the motor, and gear teeth which are matched and meshed with the gear on the surface of the gear disc are arranged on the side face of the inner ring of the large bearing.

Preferably, self-adaptation activity cooling mechanism includes first refrigeration semiconductor, second refrigeration semiconductor, a plurality of contact cooling piece, the flexible plasticity ring of a plurality of and a plurality of refrigeration pole, first refrigeration semiconductor fixed mounting is on the inner wall of circle frame, second refrigeration semiconductor fixed connection is on first refrigeration semiconductor, the surface of first refrigeration semiconductor and second refrigeration semiconductor all is the ring shape that becomes, the inner wall fixedly connected with a plurality of contact cooling piece of second refrigeration semiconductor, the surface of contact cooling piece is a plurality of arc form the contact cooling piece is the circumference on the surface of second refrigeration semiconductor and distributes, a plurality of wind hole has been seted up on the surface of second refrigeration semiconductor.

Preferably, one end of the refrigerating rod is fixedly connected with the surface of the first refrigerating semiconductor, a plurality of refrigerating rods are circumferentially distributed on the surface of the first refrigerating semiconductor, the surface of the refrigerating rod is fixedly connected with a small bearing, the outer ring of the small bearing is sleeved with an inner supporting ring, the surface of the inner support ring is fixedly connected with a plurality of spring wires which are circumferentially arranged on the surface of the inner support ring, one end of the spring wire far away from the inner support ring is fixedly connected with the inner side surface of the flexible plastic ring, the spring wire and the flexible plastic ring are made of spring steel, the inner support ring is made of copper, the surface of the flexible plastic ring is fixedly connected with a plurality of loop bars, the surface of the loop bar is connected with a contact heat exchange ball in a rolling way, the contact heat exchange ball is made of copper balls, the surface of the wrapping copper plate, the surface of the connecting rod and the surface of the contact cooling sheet are in rolling connection with the surface of the contact heat exchange ball.

Preferably, the inside fixed mounting of hollow base has the fan, the through-hole has been seted up to the bottom of circle frame, the through-hole is with the inside intercommunication of hollow base and circle frame, the tuber pipe has been cup jointed on the surface of circle frame, the operation mouth has been seted up on the surface of circle frame, the surface of operation mouth is pegged graft and is had the arc picture peg.

(III) advantageous effects

(1) By arranging the detection mechanism, on one hand, the submerged combined detection mechanism is convenient to replace and overhaul local detection devices under the condition of ensuring the detection of the circular ring shape, and on the other hand, the uniformly distributed connection structure can concentrate heat, reduce heat accumulation on the detector and facilitate the heat loss of the detector.

(2) According to the invention, through arranging the self-use movable cooling mechanism, the spherical contact heat exchange ball can concentrate heat in a point contact manner, and rotary exchange and local deformation are generated under the operation action of the detection structure, so that the heat exchange ball not only can contact a narrow space to absorb and exchange heat in the narrow space, but also can continuously switch different contact heat exchange balls, and the contact heat exchange balls continuously absorb and dissipate heat, thereby maintaining the effect of continuous cooling.

(3) The fan is arranged, so that on one hand, the circulation of airflow inside the circular rack can be promoted under the condition that the self-adaptive movable cooling mechanism is out of action, and the heat dissipation state inside the circular rack is kept, on the other hand, the output of surplus cooling capacity can be promoted in the working process of the self-adaptive movable cooling mechanism, and circulating cooling capacity is provided for other components needing cooling.

(4) According to the invention, according to the heat dissipation problem of the existing PET detector, a special structure capable of carrying out contact type heat exchange on a local narrow space is designed aiming at a detection ring in a movable state, multi-stage heat dissipation is concentrated, and the problems that a main heating device of a common PET detector is concentrated on the detection ring, heat is concentrated and difficult to dissipate, especially heat in the narrow space is easy to accumulate, the non-contact heat dissipation efficiency is low, and the efficient and continuous use of the detector is not facilitated are solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the circular frame structure of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2;

FIG. 4 is a front view of a second refrigeration semiconductor structure of the present invention;

fig. 5 is a rear view of the motor mechanism of the present invention.

The device comprises a hollow base 1, a circular frame 2, a detection mechanism 3, a single crystal 31, a photomultiplier 32, a support ring 33, a shielding strip 34, a support rod 35, a connecting rod 36, a connecting groove 37, a connecting block 38, a copper plate wrapped by 39, a large bearing 310, a motor 311, a gear wheel 312, a self-adaptive movable cooling mechanism 4, a first refrigeration semiconductor 41, a second refrigeration semiconductor 42, a contact cooling sheet 43, a flexible plastic ring 44, a refrigeration rod 45, an air hole 46, a small bearing 47, an inner support ring 48, a spring wire 49, a loop bar 410, a contact heat exchange ball 411, a fan 5, a through hole 6, an air outlet pipe 7, an operation opening 8 and an arc-shaped inserting plate 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a magnetic-compatibility all-digital solid PET detector, which includes a hollow base 1 for supporting equipment, a circular frame 2 for mounting and supporting the equipment, a detection mechanism 3 for performing detection work, and an adaptive movable cooling mechanism 4 for performing contact cooling on a detection structure of a non-fixed circular ring in a movable state, wherein the circular frame 2 is fixedly connected above the hollow base 1, the detection mechanism 3 is arranged on the circular frame 2, the adaptive movable cooling mechanism 4 is arranged inside the circular frame 2, the surface of the circular frame 2 is in a shape of a circular ring, the inside of the circular frame 2 is in a hollow shape, and the inner side surface of the circular frame 2 is in an open shape.

The detection mechanism 3 comprises a plurality of single crystals 31, photomultiplier tubes 32, a support ring 33, a plurality of shielding strips 34, a support rod 35, a connecting rod 36, a connecting groove 37, a connecting block 38, a plurality of wrapping copper plates 39 corresponding to the single crystals 31 one by one, a large bearing 310 and a motor 311, a large bearing 310 is fixedly connected to the surface of the circular frame 2, a plurality of connecting rods 36 are fixedly connected to the inner ring of the large bearing 310, the connecting groove 37 is formed in the surface of each connecting rod 36, the wrapping copper plates 39 are fixedly connected to the surface of the single crystals 31, the connecting block 38 is fixedly connected to the surface of the wrapping copper plates 39, the surface of the connecting block 38 is inserted into the inner wall of the connecting groove 37, the surface of the connecting block 38 and the inner wall of the connecting groove 37 are in a ladder shape, the single crystals 31 and the connecting rods 36 are distributed in a staggered manner, a plurality, the fixed surface of support ring 33 is connected with bracing piece 35, the fixed surface of bracing piece 35 and round frame 2 is connected, the fixed surface of support ring 33 is connected with a plurality of and shelters from strip 34, the interval that shelters from strip 34 is less than photomultiplier 32's width, motor 311 fixed mounting is on round frame 2's surface, fixedly connected with gear disc 312 on motor 311's the output shaft, the side of the inner circle of big bearing 310 is provided with the teeth of a cogwheel that matches the meshing each other with gear disc 312 on the surface.

The self-adaptive movable cooling mechanism 4 comprises a first refrigeration semiconductor 41, a second refrigeration semiconductor 42, a plurality of contact cooling sheets 43, a plurality of flexible plastic rings 44 and a plurality of refrigeration rods 45, wherein the first refrigeration semiconductor 41 is fixedly installed on the inner wall of the circular frame 2, the second refrigeration semiconductor 42 is fixedly connected on the first refrigeration semiconductor 41, the surfaces of the first refrigeration semiconductor 41 and the second refrigeration semiconductor 42 are in a ring-shaped shape, the inner wall of the second refrigeration semiconductor 42 is fixedly connected with the plurality of contact cooling sheets 43, the surface of the contact cooling sheets 43 is in an arc shape, the plurality of contact cooling sheets 43 are circumferentially distributed on the surface of the second refrigeration semiconductor 42, the surface of the second refrigeration semiconductor 42 is provided with a plurality of air holes 46, one end of each refrigeration rod 45 is fixedly connected with the surface of the first refrigeration semiconductor 41, and the plurality of refrigeration rods 45 are circumferentially distributed on the surface of the first refrigeration semiconductor 41, the surface of the refrigeration rod 45 is fixedly connected with a small bearing 47, the outer ring of the small bearing 47 is sleeved with an inner support ring 48, the surface of the inner support ring 48 is fixedly connected with a plurality of spring wires 49 which are respectively arranged on the surface of the inner support ring in a circumferential manner, one end of each spring wire 49 far away from the inner support ring 48 is fixedly connected with the inner side surface of the flexible plastic ring 44, the spring wires 49 and the flexible plastic ring 44 are made of spring steel, the inner support ring 48 is made of copper, the surface of the flexible plastic ring 44 is fixedly connected with a plurality of sleeve rods 410, the surface of each sleeve rod 410 is connected with a contact heat exchange ball 411 in a rolling manner, the contact heat exchange balls 411 are made of copper balls, the surface of the wrapping copper plate 39, the surface of the connecting rod 36 and the surface of the contact cooling sheet 43 are all connected with the surface of the contact heat exchange balls 411 in a rolling manner, a fan 5 is fixedly arranged in the hollow, the through hole 6 is communicated with the inside of the hollow base 1 and the round rack 2, the air outlet pipe 7 is sleeved on the surface of the round rack 2, the operation opening 8 is formed in the surface of the round rack 2, and the arc-shaped inserting plate 9 is inserted into the surface of the operation opening 8.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

When the device is used, a power supply is connected, the motor 311, the fan 5, the first refrigerating semiconductor 41 and the second refrigerating semiconductor 42 are started, an output shaft of the motor 311 drives the gear disc 312 to rotate, the gear disc 312 drives the inner ring of the large bearing 310 to rotate, the connecting rod 36 on the inner ring of the large bearing 310 drives each single crystal 31 to rotate, the single crystal 31 is used for receiving gamma rays emitted from a living body, the photomultiplier tube 32 is tightly attached to the outer side of the single crystal 31 and used for converting optical signals received by the single crystal 31 into pulse signals, the shielding strip 34 uniformly shields the gamma rays, heat generated by the single crystal 31 is concentrated on the wrapping copper plate 39 on the outer side, each rotating single crystal 31 can drive the whole flexible plastic ring 44 to rotate and deform, the deformed flexible plastic ring 44 drives the contact heat exchange ball 411 to perform multi-point contact heat exchange with each component in a narrow space and other positions, the heat is concentrated on the contact heat exchange ball 411, when the rotating contact heat exchange ball 411 rotates to be in contact with the inner wall of the cooling fin 43, the rotating contact heat exchange ball rotates on the inner wall of the cooling fin 43 to dissipate the heat, part of the heat is transmitted to the refrigerating rod 45 through the spring wire 49 and is consumed by the first refrigerating semiconductor 41, meanwhile, the wind power generated by the fan 5 promotes the internal cold to be uniform and accelerates the dissipation of the heat, when local parts need to be overhauled and replaced, only the arc-shaped inserting plate 9 needs to be taken out from the operation opening 8, and then the local single crystal 31 slides out and is replaced.