WO2018176315A1 - 车载ct及救护车和体检车 - Google Patents

车载ct及救护车和体检车 Download PDF

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Publication number
WO2018176315A1
WO2018176315A1 PCT/CN2017/078769 CN2017078769W WO2018176315A1 WO 2018176315 A1 WO2018176315 A1 WO 2018176315A1 CN 2017078769 W CN2017078769 W CN 2017078769W WO 2018176315 A1 WO2018176315 A1 WO 2018176315A1
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Prior art keywords
disposed
bed
bed frame
gear
vehicle
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PCT/CN2017/078769
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English (en)
French (fr)
Inventor
史继生
史臣
Original Assignee
深圳市艾克瑞电气有限公司
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Priority to PCT/CN2017/078769 priority Critical patent/WO2018176315A1/zh
Publication of WO2018176315A1 publication Critical patent/WO2018176315A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects

Definitions

  • the invention relates to a vehicle-mounted CT and an ambulance and a physical examination vehicle.
  • cerebral hemorrhage or cerebral embolism account for a large proportion of all emergency cases in the elderly. Cerebral hemorrhage and cerebral embolism cannot be recognized from the body surface, and cerebral hemorrhage is the opposite of cerebral embolism. Blood vessels, reduce bleeding, cerebral embolism medication is to dilate blood vessels), so it can not be used before diagnosis.
  • the current practice is usually to send the patient to the hospital and then perform a computed tomography scan at the hospital (Computed) Tomography, CT), after the diagnosis, according to the targeted medication.
  • Compputed computed tomography
  • CT computed tomography
  • the whole process takes at least two hours, combined with the current increasingly blocked traffic in China, delaying the rescue time of gold, causing brain damage, death and death, reflecting the meaning of time is life.
  • a vehicle-mounted CT for scanning a head including:
  • the scanning mechanism includes a scanning cylinder, an X-ray source, and a digital imaging plate, the scanning cylinder extending in a first direction, and the X-ray source is disposed opposite to the digital imaging plate in the scanning cylinder;
  • a fixing frame mechanism comprising: a first bed frame seat and a second bed frame seat respectively disposed at opposite ends of the scanning cylinder;
  • a bed board the two ends of the bed board being respectively connected to the first bed frame base and the second bed frame base, the bed board being freely rotatable about its own central axis parallel to the first direction.
  • FIG. 1 is a perspective view of a vehicle-mounted CT in an embodiment
  • FIG. 2 is a perspective view of a vehicle-mounted CT in another embodiment
  • FIG. 3 is a perspective exploded view of the vehicle-mounted CT shown in FIG. 2;
  • Figure 4 is a perspective exploded view of the bed mechanism shown in Figure 2;
  • Figure 5 is a perspective view of components connected to the first and second bed frame holders
  • Figure 6 is a perspective view of the components connected to the first bed frame
  • Figure 7 is a perspective view of the components connected to the second bed frame.
  • on-board CT can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of on-board CT more thorough and comprehensive.
  • the on-vehicle CT 10 in one embodiment includes a scanning mechanism 100, a mount mechanism 200, and a bed mechanism 300.
  • the vehicle CT 10 is used to scan a person's head.
  • the scanning mechanism 100 includes a scanning cylinder 110, an X-ray source 120, and a digital imaging plate 130.
  • the scanning cylinder 110 extends in the first direction 10a for fixing to the floor of the vehicle.
  • the X-ray source 120 is disposed in the scanning cylinder 110 opposite to the digital imaging plate 130, and the line connecting the X-ray source 120 and the center of the digital imaging plate 130 intersects the first direction 10a (not parallel, and does not coincide).
  • the mounting mechanism 200 includes a first bed frame 210 and a second bed frame 220 respectively disposed at opposite ends of the scanning cylinder 110.
  • the first bed frame 210 and the second bed frame 220 are fixed on the floor of the vehicle. .
  • the deck mechanism 300 includes a bed 310. Both ends of the bed board 310 are connected to the first bed frame base 210 and the second bed frame base 220, respectively. And the bed board 310 is free to rotate (360° rotation) about its own central axis parallel to the first direction 10a.
  • the scanning cylinder When the CT is used on the head by the conventional CT system, the person is stationary, and the scanning cylinder rotates one turn, thereby driving the X-ray source and the digital imaging plate to rotate one turn, thereby obtaining a CT picture of the head.
  • the scanning cylinder When constructing a traditional CT instrument, the scanning cylinder needs to be rotated, which causes the CT instrument to be large in size and occupying a large space. It cannot be installed on vehicles such as ambulances and medical examination vehicles (the height of the scanning cylinder is greater than the height of the interior space of the vehicle) Even if it is installed on a special vehicle with a large space, there is no way to arrange other medical equipment (for example, oxygen supply equipment).
  • the bed board 310 can rotate 360° around its own central axis parallel to the first direction 10a.
  • the bed board 310 is rotated by one person, and when the scanning cylinder 110 is fixed and does not rotate, You can get a CT picture of the head.
  • the scanning cylinder 110 does not rotate, and the space occupation can be minimized, so that the CT can be disposed on the vehicle.
  • the vehicle When it is deployed on vehicles such as ambulances and medical examination vehicles, when the vehicle receives a patient with cerebral hemorrhage or cerebral embolism requiring treatment, it can perform CT scan in time and obtain the scan result at the fastest speed, so that it can be targeted. Maximize the use of gold to save time, reduce brain damage, and save lives to the greatest extent.
  • the inner surface of the scanning cylinder 110 has a cylindrical shape. In other embodiments, the inner surface of the scanning cylinder can also be square.
  • the line connecting the X-ray source 120 and the center of the digital imaging plate 130 is parallel to the vertical direction, and the X-rays emitted by the X-ray source 120 can be directed toward the ground or the sky, thereby reducing the radiation of the X-rays to the surrounding environment, and also facilitating the X-rays. Take protection.
  • the person When the person is lying on the bed board 310, the face is facing upward, and when the bed board 310 is rotated, the face of the person faces the ground.
  • the person when a person is lying on the bed board 310, the person is first fixed to the bed board 310 with a strap.
  • the straps can be designed to be detachably coupled to the bed board 310 or can be a separate structure (in use, there is no need to connect to the bed board 310).
  • the structure of the strap can be similar to the strap of a sphygmomanometer, or a velcro can be used as a strap, and the strap can also be elastic.
  • the bed mechanism 300 further includes a bed frame 320.
  • the bed frame 320 is disposed on the scanning cylinder 110, and the two ends of the bed frame 320 are respectively disposed on the first bed frame 210 and the second bed frame 220.
  • the bed frame 320 can surround itself and the first direction 10a.
  • the parallel central axis rotates 360°.
  • the bed board 310 is disposed on the bed frame 320. That is, in the present embodiment, the bed frame 310 is rotated by rotating the bed frame 320 to rotate the bed plate 310. It can be understood that the bed frame can be omitted and the bed plate can be directly rotated.
  • the vehicle CT The 10 further includes a first drive mechanism 400a and a connection mechanism 400b.
  • the bed frame 320 With the first drive mechanism 400a engaged with the attachment mechanism 400b, the bed frame 320 can be rotated 360° about its own central axis parallel to the first direction 10a.
  • the first driving mechanism 400a includes a first motor 410 disposed on the first bed frame 210, a first gear 420 disposed on an output shaft of the first motor 410, and a second gear 430 meshing with the first gear 420.
  • the radius of the second gear 430 is greater than the radius of the first gear 420, that is, the second gear 430 is a reduction gear.
  • the first motor 410 is a horizontal motor.
  • the rotational speed of the second gear 430 can be controlled from 1 second/turn to 120 seconds/turn, which is suitable for the examinee.
  • the connecting mechanism 400b includes a first link 440 and a second link 450.
  • One end of the bed frame 320 is fixedly connected to the center of the second gear 430 through the first link 440, that is, the first link 440 is coaxially disposed with the second gear 430, so that the rotation speed of the first link 440 and the second gear 430 The speed is the same.
  • the other end of the bed frame 320 is rotatably connected to the second bed frame 220 through the second link 450.
  • the second bed frame 220 may be provided with a sleeve for connecting with the second link 450.
  • the bed board 310 can also be reciprocated in the first direction 10a, thereby facilitating placement of a person on the bed board 310 and facilitating the transfer of a person from the bed board 310.
  • the bed board 310 can be controlled to move toward the first bed frame base 210 in the first direction 10a, so that the person can be placed on the first bed frame base 210 (away from the scanning cylinder 110); and then the bed board is controlled.
  • the 310 moves along the first direction 10a toward the second bed frame 220 so that the person is located in the scanning cylinder 110 to receive the X-rays emitted by the X-ray source 120 for CT scanning; after the scanning is finished, the bed board 310 is controlled to continue along the edge.
  • the first direction 10a is moved toward the second bed frame holder 220 so that a person can be transferred from the bed board 310 at the second bed frame base 220 (away from the scanning cylinder 110).
  • the first bed frame 210 and the second bed frame 220 can be respectively arranged corresponding to the rear door and the front door of the physical examination vehicle, so as to facilitate the upper and lower body inspection.
  • the vehicle CT The 10 further includes a second drive mechanism 500a and a first slide mechanism 500b disposed between the bed frame 320 and the bed board 310.
  • the bed board 310 can reciprocate in the first direction 10a.
  • the second driving mechanism 500a includes a second motor 510 disposed on the bed frame 320, a first screw 520 disposed on the output shaft of the second motor 510, and a first nut seat disposed on the first screw 520.
  • the first lead screw 520 extends in the first direction 10a.
  • the first nut seat 530 is coupled to the bed plate 310.
  • the first sliding mechanism 500b includes a first linear guide 540 and a first slider 550 disposed on the first linear guide 540.
  • the first linear guide 540 extends in the first direction 10a.
  • the first slider 550 is coupled to the bed plate 310.
  • the bed frame 320 is provided with a mounting groove 322, and the second motor 510, the first screw rod 520 and the first nut seat 530 are both Located in the mounting slot 322.
  • the second driving mechanism 500a further includes a first fixing base 560, a first support 570, and a first coupling 580.
  • One end of the first screw 520 is disposed on the first support 570 , and the other end is disposed on the first fixed seat 560 and connected to the second motor 510 through the first coupling 580 .
  • the first fixing base 560 and the first supporting base 570 are both disposed on the bottom of the groove of the mounting groove 322.
  • the number of the first linear guide rails 540 is two, and the two first linear guide rails 540 are respectively disposed on both sides of the mounting groove 322.
  • Two first sliders 550 are spaced apart from each of the first linear guides 540.
  • the number of the first linear guides 540 may be three or four, and each of the first linear guides 540 may have only one first slider 550, or may have three or more. The first slider 550.
  • the bed board 310 can also reciprocate in the vertical direction, thereby facilitating adjustment of the heads of different thicknesses, so that the center sections of the heads of different thicknesses on the horizontal plane can be moved to predetermined positions.
  • Some people are fat, some are thin, some are big, some are small, so different people are lying on the bed board 310, and the thickness of the head in the vertical direction is usually different.
  • the center section is referenced to the predetermined position (the distance between the predetermined position to the X-ray source 120 and the predetermined position to the digital imaging plate 130 is equal). After that, scan again.
  • the vehicle CT The 10 further includes a third drive mechanism 600a, a second slide mechanism 600b, a transmission mechanism 700a, and a third slide mechanism 700b.
  • the bed board 310 can reciprocate in the vertical direction.
  • the third driving mechanism 600a includes a third motor 610 disposed on the first bed frame 210, a second screw 620 disposed on the output shaft of the third motor 610, and a second thread disposed on the second screw 620. Nut seat 630.
  • the second lead screw 620 extends in the vertical direction.
  • the second nut seat 630 is coupled to the end of the bed frame 320.
  • the second sliding mechanism 600b includes a second linear guide 640 disposed on the first bed frame 210 and a second slider 650 disposed on the second linear guide 640.
  • the second linear guide 640 extends in the vertical direction.
  • the second slider 650 is coupled to the end of the bed frame 320.
  • the transmission mechanism 700a includes a transmission shaft 710, a third screw shaft 720, a third nut holder 730, a first helical gear 740, a second helical gear 750, a third helical gear 760, and a fourth helical gear 770.
  • the third screw 720 is disposed on the second bed frame 220 and extends in a vertical direction.
  • the third nut seat 730 is disposed on the third screw 720.
  • the third nut seat 730 is coupled to the end of the bed frame 320.
  • the first helical gear 740 and the second helical gear 750 are respectively disposed at two ends of the transmission shaft 710, and the third helical gear 760 and the fourth helical gear 770 are respectively disposed on the second screw 620 and the third screw 720, and the first The triple helical gear 760 meshes with the first helical gear 740, and the fourth helical gear 770 meshes with the second helical gear 750.
  • the third sliding mechanism 700b includes a third linear guide 780 disposed on the second bed frame 220 and a third slider 790 disposed on the third linear guide 780.
  • the third linear guide 780 extends in the vertical direction.
  • the third slider 790 is coupled to the end of the bed frame 320.
  • the fixing mechanism 200 further includes a first mounting plate 230 and a second mounting plate 240.
  • the third motor 610, the second screw 620 and the second linear guide 640 are disposed on the first mounting plate 230, and the third screw 720 and the third linear guide 780 are disposed on the second mounting plate 240.
  • An end of the first link 440 away from the second gear 430 is fixedly connected to the first mounting plate 230
  • an end of the second link 450 away from the second bed frame 220 is fixedly connected to the second mounting plate 240 .
  • the third driving mechanism 600a further includes a second fixing seat 660, a second seat 670, and a second coupling 680.
  • One end of the second screw 620 is disposed on the second support 670 , and the other end is disposed on the second mount 660 and connected to the third motor 610 through the second shaft 680 .
  • the second fixing base 660 and the second supporting base 670 are both disposed on the first mounting plate 230.
  • the number of the second linear guides 640 is two, and the two second linear guides 640 are respectively disposed on two sides of the second lead screw 620.
  • a second slider 650 is disposed on each of the second linear guides 640.
  • the structure of the fixing seat, the support and the like which cooperate with the third screw 720 is the same as that of the second screw 620, and will not be repeatedly described here.
  • the transmission shaft 710 is bored on the scanning cylinder 110.
  • an ambulance is also provided.
  • the ambulance includes the above-described onboard CT 10.
  • a medical examination vehicle is also provided.
  • the medical examination vehicle includes the above-described onboard CT 10.

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Abstract

一种车载CT（10），包括：扫描机构（100）、固定架机构（200）以及床板机构（300）。扫描机构（100）包括扫描筒体（110）、X射线源（120）及数字成像板（130），扫描筒体（110）沿第一方向延伸，X射线源（120）与数字成像板（130）相对的设于扫描筒体（110）内。固定架机构（200）包括分别设于扫描筒体（110）相对的两端的第一床架座（210）和第二床架座（220）。床板机构（300）包括床板（310），床板（310）两端分别与第一床架座（210）和第二床架座（220）连接，床板（310）能绕自身的且与第一方向平行的中轴线自由旋转。通过以上结构，可以最大限度的减少空间占用，使得CT能配置于车辆上，从而可以及时对病人进行CT扫描，最快速度获得扫描结果。

Description

车载CT及救护车和体检车
【技术领域】
本发明涉及一种车载CT及救护车和体检车。
【背景技术】
老年人因脑出血或脑栓塞引发的求救在老人所有急救病例中占据相当大的比例，脑出血和脑栓塞无法从体表识别，而脑出血与脑栓塞的用药正好相反（脑出血用药是收缩血管，减少出血，脑栓塞用药是扩张血管），因而在确诊前无法用药。
目前的做法通常是，先将病人送至医院，然后在医院做电子计算机断层扫描（Computed Tomography，CT），确症后再根据病症针对性的用药。而这整个过程至少需要两个小时，加之目前国内日渐堵塞的交通，耽误了黄金抢救时间，造成脑损伤致残、死亡等后果，体现了时间就是生命的含义。
【发明内容】
基于此，有必要提供一种车载CT。
一种车载CT，用于扫描头部，包括：
扫描机构，包括扫描筒体、X射线源以及数字成像板，所述扫描筒体沿第一方向延伸，所述X射线源与所述数字成像板相对的设于所述扫描筒体内；
固定架机构，包括分别设于所述扫描筒体相对的两端的第一床架座及第二床架座；以及
床板，所述床板的两端分别与所述第一床架座及所述第二床架座连接，所述床板能绕自身的且与所述第一方向平行的中轴线自由旋转。
本发明的一个或多个实施例的细节在下面的附图和描述中提出。本发明的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
【附图说明】
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他实施例的附图。
图1为一实施方式中的车载CT的立体示意图；
图2为另一实施方式中的车载CT的立体示意图；
图3为图2所示车载CT的立体分解示意图；
图4为图2所示床板机构的立体分解示意图；
图5为与第一、第二床架座连接的元器件的立体示意图；
图6为与第一床架座连接的元器件的立体示意图；
图7为与第二床架座连接的元器件的立体示意图。
【具体实施方式】
为了便于理解本发明，下面将参照相关附图对车载CT及救护车和体检车进行更全面的描述。附图中给出了车载CT的首选实施例。但是，车载CT可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对车载CT的公开内容更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在车载CT的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及／或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1所示，一实施方式中的车载CT 10，包括扫描机构100、固定架机构200及床板机构300。该车载CT 10用于扫描人的头部。
扫描机构100包括扫描筒体110、X射线源120以及数字成像板130。扫描筒体110沿第一方向10a延伸，用于固定于车底板上。X射线源120与数字成像板130相对的设于扫描筒体110内，且X射线源120与数字成像板130的中心的连线与第一方向10a相交（不平行，也不重合）。
固定架机构200包括分别设于扫描筒体110相对的两端的第一床架座210及第二床架座220，第一床架座210及第二床架座220用于固定于车底板上。
床板机构300包括床板310。床板310的两端分别与第一床架座210及第二床架座220连接。且床板310能绕自身的且与第一方向10a平行的中轴线自由旋转（360°旋转）。
采用传统的CT系统对头部做CT时，人静止不动，扫描筒体转动一圈，从而带动X射线源与数字成像板转动一圈，进而可以获得头部一圈的CT图片。在构建传统的CT仪器时，扫描筒体需要转动，导致CT仪器体积大，占用空间大，不能安装于常用的救护车、体检车等车辆上（扫描筒体的高度大于车辆内部空间的高度），就算安装于具有较大空间的特制车辆上，也没办法布置其他医疗设备（例如，供氧设备）。而在上述车载CT 10中，床板310能绕自身的且与第一方向10a平行的中轴线360°旋转，当人固定于床板310后，床板310带着人旋转一圈，而扫描筒体110固定不转动时，即可获得头部一圈的CT图片。采用人转动，扫描筒体110不转动的方式，可以最大限度的减少空间占用，从而使得CT能配置于车辆上。特别是当上述车载CT 10配置于救护车、体检车等车辆上时，在车辆接到需要救治的脑出血或脑栓塞病人时，可以及时对其进行CT扫描，最快速度获得扫描结果，从而可以有针对性的用药，最大限度地利用黄金抢救时间，减少脑损伤，最大程度地挽救生命。
在本实施方式中，扫描筒体110的内表面呈圆柱形。在其他实施方式中，扫描筒体的内表面也可以呈方形。
X射线源120与数字成像板130的中心的连线与竖直方向平行，X射线源120发出的X射线可以朝向地面或天空，从而降低X射线对周围环境的辐射，也更便于对X射线进行防护。
人躺在床板310上时，面部朝上，当床板310旋转时，会出现人的面部朝向地面的情况。在本实施方式中，当人躺在床板310上时，先用绑带将人固定在床板310上。绑带可以设计为与床板310可拆卸连接，也可以为独立的结构（在使用时，不需要与床板310连接）。绑带的结构可以类似血压计的绑带，也可以采用魔术贴来做绑带，绑带还可以具有弹性。
如图2、图3及图4所示，在本实施方式中，床板机构300还包括床架320。床架320穿设于扫描筒体110上，且床架320的两端分别设于第一床架座210及第二床架座220上，床架320能绕自身的且与第一方向10a平行的中轴线360°旋转。床板310设于床架320上。也即在本实施方式中，采用床架320旋转从而带动床板310旋转的方式，实现床板310旋转。可以理解，床架可以省略，直接旋转床板。
具体的，如图3、图5及图6所示，在本实施方式中，车载CT 10还包括第一驱动机构400a及连接机构400b。在第一驱动机构400a与连接机构400b配合下，床架320能绕自身的且与第一方向10a平行的中轴线360°旋转。
第一驱动机构400a包括设于第一床架座210上的第一电机410、设于第一电机410的输出轴上的第一齿轮420以及与第一齿轮420啮合的第二齿轮430。其中，第二齿轮430的半径大于第一齿轮420的半径，也即第二齿轮430为减速齿轮。具体的，在本实施方式中，第一电机410为卧式电机。第二齿轮430的转速可以控制在1秒/圈至120秒/圈，该转速适合被检查者。
连接机构400b包括第一连杆440及第二连杆450。床架320一端通过第一连杆440与第二齿轮430的中心固定连接，也即第一连杆440与第二齿轮430同轴设置，从而使得第一连杆440的转速与第二齿轮430的转速相同。床架320的另一端通过第二连杆450与第二床架座220转动连接，具体的，可以在第二床架座220设置用于与第二连杆450连接的轴套。
进一步，在本实施方式中，床板310还能沿第一方向10a往返移动，从而可以便于将人放置于床板310上以及便于将人从床板310上转移下来。具体的，可以先控制床板310沿第一方向10a朝向第一床架座210移动，从而可以在第一床架座210处（远离扫描筒体110处）将人放置于310上；再控制床板310沿第一方向10a朝向第二床架座220移动，以使人位于扫描筒体110内，以接收X射线源120发出的X射线，进行CT扫描；扫描结束后，再控制床板310继续沿第一方向10a朝向第二床架座220移动，从而可以在第二床架座220处（远离扫描筒体110处）将人从床板310上转移下来。从而当上述车载CT 10配置于体检车中时，第一床架座210与第二床架座220可以分别对应体检车的后门与前门设置，方便上下体检车。
具体的，如图2、图3及图4所示，在本实施方式中，车载CT 10还包括设于床架320与床板310之间的第二驱动机构500a以及第一滑动机构500b。在第二驱动机构500a与第一滑动机构500b配合下，床板310能沿第一方向10a往返移动。
第二驱动机构500a包括设于床架320上的第二电机510、设于第二电机510的输出轴上的第一丝杆520以及穿设于第一丝杆520上的第一螺帽座530，第一丝杆520沿第一方向10a延伸。第一螺帽座530与床板310连接。
第一滑动机构500b包括第一直线导轨540及设于第一直线导轨540上的第一滑块550。第一直线导轨540沿第一方向10a延伸。第一滑块550与床板310连接。
进一步，在本实施方式中，为了降低床板310与床架320构成的整体的厚度，床架320上设有安装槽322，第二电机510、第一丝杆520以及第一螺帽座530均位于安装槽322内。
进一步，在本实施方式中，第二驱动机构500a还包括第一固定座560、第一支座570以及第一联轴器580。第一丝杆520的一端穿设于第一支座570上，另一端穿设于第一固定座560上，并通过第一联轴器580与第二电机510连接。第一固定座560及第一支座570均设于安装槽322的槽底上。
进一步，在本实施方式中，第一直线导轨540的数目为两根，两根第一直线导轨540分别设于安装槽322的两侧。每一第一直线导轨540上间隔设置两个第一滑块550。在其他实施方式中，第一直线导轨540的数目可以为三根或四根，每一第一直线导轨540上也可以只有一个第一滑块550，也可以具有三个或三个以上的第一滑块550。
进一步，在本实施方式中，床板310还能沿竖直方向往返移动，从而便于调节不同厚度的头部，使得不同厚度的头部在水平面上的中心截面都能移动到预定位置。有的人胖，有的人瘦，有的人头大，有的人头小，因此不同的人躺在床板310上，其头部，在竖直方向上的厚度通常不相同。而在CT扫描头部时，以头部在水平面上的中心截面为基准，当中心截面到达预定位置（通常预定位置到X射线源120的距离与预定位置到数字成像板130之间的距离相等）后，再进行扫描。
具体的，如图5、图6及图7所示，在本实施方式中，车载CT 10还包括第三驱动机构600a、第二滑动机构600b、传动机构700a及第三滑动机构700b。在第三驱动机构600a、第二滑动机构600b、传动机构700a及第三滑动机构700b的配合下，床板310能沿竖直方向往返移动。
第三驱动机构600a包括设于第一床架座210上的第三电机610、设于第三电机610的输出轴上的第二丝杆620以及穿设于第二丝杆620上的第二螺帽座630。第二丝杆620沿竖直方向延伸。第二螺帽座630与床架320的端部连接。
第二滑动机构600b包括设于第一床架座210上的第二直线导轨640及设于第二直线导轨640上的第二滑块650。第二直线导轨640沿竖直方向延伸。第二滑块650与床架320的端部连接。
传动机构700a包括传动轴710、第三丝杆720、第三螺帽座730、第一螺旋齿轮740、第二螺旋齿轮750、第三螺旋齿轮760以及第四螺旋齿轮770。第三丝杆720设于第二床架座220上，且沿竖直方向延伸。第三螺帽座730穿设于第三丝杆720上。第三螺帽座730与床架320的端部连接。第一螺旋齿轮740与第二螺旋齿轮750分别设于传动轴710的两端，第三螺旋齿轮760与第四螺旋齿轮770分别设于第二丝杆620与第三丝杆720上，且第三螺旋齿轮760与第一螺旋齿轮740啮合，第四螺旋齿轮770与第二螺旋齿轮750啮合。
第三滑动机构700b包括设于第二床架座220上的第三直线导轨780及设于第三直线导轨780上的第三滑块790。第三直线导轨780沿竖直方向延伸。第三滑块790与床架320的端部连接。
进一步，在本实施方式中，固定架机构200还包括第一安装板230及第二安装板240。第三电机610、第二丝杆620及第二直线导轨640设于第一安装板230上，第三丝杆720及第三直线导轨780设于第二安装板240上。第一连杆440远离第二齿轮430的一端与第一安装板230固定连接，第二连杆450远离第二床架座220的一端与第二安装板240固定连接。
进一步，在本实施方式中，第三驱动机构600a还包括第二固定座660、第二支座670以及第二联轴器680。第二丝杆620的一端穿设于第二支座670上，另一端穿设于第二固定座660上，并通过第二轴器680与第三电机610连接。第二固定座660及第二支座670均设于第一安装板230上。
第二直线导轨640的数目为两根，两根第二直线导轨640分别设于第二丝杆620的两侧。每一第二直线导轨640上设置一个第二滑块650。
与第三丝杆720配合的固定座、支座等结构与第二丝杆620的相同，这里不再重复介绍。
进一步，在本实施方式中，传动轴710穿设于扫描筒体110上。
在本实施方式中，还提供一种救护车。该救护车包括上述的车载CT 10。
在本实施方式中，还提供一种体检车。该体检车包括上述的车载CT 10。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种车载CT，包括：
    扫描机构，包括扫描筒体、X射线源以及数字成像板，所述扫描筒体沿第一方向延伸，所述X射线源与所述数字成像板相对的设于所述扫描筒体内；
    固定架机构，包括分别设于所述扫描筒体相对的两端的第一床架座及第二床架座；以及
    床板，所述床板的两端分别与所述第一床架座及所述第二床架座连接，所述床板能绕自身的且与所述第一方向平行的中轴线自由旋转。
  2. 根据权利要求1所述的车载CT，其特征在于，还包括第一驱动机构以及连接机构；
    所述第一驱动机构包括设于所述第一床架座上的第一电机、设于所述第一电机的输出轴上的第一齿轮以及与所述第一齿轮啮合的第二齿轮，所述第二齿轮的半径大于所述第一齿轮的半径；
    所述连接机构包括第一连杆及第二连杆，所述床板一端通过所述第一连杆与所述第二齿轮的中心固定连接，所述床板的另一端通过所述第二连杆与所述第二床架座转动连接。
  3. 根据权利要求1所述的车载CT，其特征在于，所述床板还能沿第一方向往返移动。
  4. 根据权利要求3所述的车载CT，其特征在于，还包括床架，所述床架穿设于所述扫描筒体，且所述床架的两端分别设于所述第一床架座及所述第二床架座上，所述床架能绕自身的且与第一方向平行的中轴线自由旋转，所述床板设于所述床架上；
    所述车载CT还包括设于所述床架与所述床板之间的第二驱动机构以及第一滑动机构；
    所述第二驱动机构包括设于所述床架上的第二电机、设于所述第二电机的输出轴上的第一丝杆以及穿设于所述第一丝杆上的第一螺帽座，所述第一丝杆沿所述第一方向延伸，所述第一螺帽座与所述床板连接；
    所述第一滑动机构包括第一直线导轨及设于第一直线导轨上的第一滑块，所述第一直线导轨沿所述第一方向延伸，所述第一滑块与所述床板连接。
  5. 根据权利要求4所述的车载CT，其特征在于，所述床架上设有安装槽，所述第二电机、所述第一丝杆以及所述第一螺帽座均位于所述安装槽内。
  6. 根据权利要求1所述的车载CT，其特征在于，所述床板还能沿竖直方向往返移动。
  7. 根据权利要求6所述的车载CT，其特征在于，还包括第三驱动机构、第二滑动机构、传动机构及第三滑动机构；
    所述第三驱动机构包括设于所述第一床架座上的第三电机、设于所述第三电机的输出轴上的第二丝杆以及穿设于所述第二丝杆上的第二螺帽座，所述第二丝杆沿竖直方向延伸，所述第二螺帽座与所述床板的端部连接；
    所述第二滑动机构包括设于所述第一床架座上的第二直线导轨及设于第二直线导轨上的第二滑块，所述第二直线导轨沿竖直方向延伸，所述第二滑块与所述床板的端部连接；
    所述传动机构包括传动轴、第三丝杆、第三螺帽座、第一螺旋齿轮、第二螺旋齿轮、第三螺旋齿轮以及第四螺旋齿轮，所述第三丝杆设于所述第二床架座上，且沿竖直方向延伸，所述第三螺帽座穿设于所述第三丝杆上，所述第三螺帽座与所述床板的端部连接，所述第一螺旋齿轮与所述第二螺旋齿轮分别设于所述传动轴的两端，所述第三螺旋齿轮与所述第四螺旋齿轮分别设于所述第二丝杆与所述第三丝杆上，且所述第三螺旋齿轮与第一螺旋齿轮啮合，所述第四螺旋齿轮与第二螺旋齿轮啮合；
    所述第三滑动机构包括设于所述第二床架座上的第三直线导轨及设于第三直线导轨上的第三滑块，所述第三直线导轨沿竖直方向延伸，所述第三滑块与所述床板的端部连接。
  8. 根据权利要求7所述的车载CT，其特征在于，还包括第一驱动机构以及连接机构；
    所述第一驱动机构包括设于所述第一床架座上的第一电机、设于所述第一电机的输出轴上的第一齿轮以及与所述第一齿轮啮合的第二齿轮，所述第二齿轮的半径大于所述第一齿轮的半径；
    所述连接机构包括第一连杆及第二连杆，所述床板一端通过所述第一连杆与所述第二齿轮的中心固定连接，所述床板的另一端通过所述第二连杆与所述第二床架座转动连接；
    所述固定架机构还包括第一安装板及第二安装板，所述第三电机、所述第二丝杆及第二直线导轨设于所述第一安装板上，所述第三丝杆及第三直线导轨设于所述第二安装板上，所述第一连杆远离所述第二齿轮的一端与所述第一安装板固定连接，所述第二连杆远离所述第二床架座的一端与所述第二安装板固定连接。
  9. 一种救护车，其特征在于，包括如权利要求1-8中任一项所述的车载CT。
  10. 一种体检车，其特征在于，包括如权利要求1-8中任一项所述的车载CT。
PCT/CN2017/078769 2017-03-30 2017-03-30 车载ct及救护车和体检车 WO2018176315A1 (zh)

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