WO2022198976A1 - 磁控和无线充电系统 - Google Patents

磁控和无线充电系统 Download PDF

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Publication number
WO2022198976A1
WO2022198976A1 PCT/CN2021/121627 CN2021121627W WO2022198976A1 WO 2022198976 A1 WO2022198976 A1 WO 2022198976A1 CN 2021121627 W CN2021121627 W CN 2021121627W WO 2022198976 A1 WO2022198976 A1 WO 2022198976A1
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Prior art keywords
coil
magnetic field
wireless charging
circuit
charging system
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PCT/CN2021/121627
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English (en)
French (fr)
Inventor
王闯
史岩
王子华
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北京善行医疗科技有限公司
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Publication of WO2022198976A1 publication Critical patent/WO2022198976A1/zh

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/041Capsule endoscopes for imaging
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002Operational features of endoscopes
    • A61B1/00025Operational features of endoscopes characterised by power management
    • A61B1/00027Operational features of endoscopes characterised by power management characterised by power supply
    • A61B1/00029Operational features of endoscopes characterised by power management characterised by power supply externally powered, e.g. wireless
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131Accessories for endoscopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147Holding or positioning arrangements
    • A61B1/00158Holding or positioning arrangements using magnetic field
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/045Control thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/273Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
    • A61B1/2736Gastroscopes
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices

Definitions

  • the present invention provides a magnetic control and wireless charging system, comprising:
  • the first coil group, the second coil group, and the third coil group generate magnetic fields that can control the posture and position of the medical device, and the first coil group, the second coil group, One or more of the coil set and the third coil set, respectively, are in selective communication with the corresponding resonant circuit.
  • the wireless charging frequency when the driving coil provides energy to the medical device by means of wireless power supply is not lower than 100KHz.
  • the receiving coil is one or more, and the axial direction of the receiving coil is perpendicular or parallel to the axial direction of the capsule device;
  • a plurality of the receiving coils are respectively located at different parts of the capsule device, and the plurality of the receiving coils can individually receive energy in different directions, and can also receive energy simultaneously.
  • FIG. 2 is a perspective view of a magnetic field drive device in an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a medical device in an embodiment of the present invention.
  • the present invention provides a magnetic control and wireless charging system, including a medical device 1 and a magnetic field driving device 2.
  • the medical device 1 is used to be placed in a body cavity of a subject 4 and obtain a specified position in the body cavity. information.
  • the magnetic field driving device 2 can generate a magnetic field outside the subject 4 and exert a force on the medical device, then the medical device 1 can move in a specified direction under the driving of the external magnetic field, and the corresponding examination has been completed.
  • the magnetic field driving device 2 can also provide energy to the medical device 1 by means of wireless power supply, so that the medical device 1 has a larger image resolution, a frame rate and a longer working time.
  • the medical device 1 is provided with a receiving coil 12 , and as shown in FIG. 3 , the driving coil 20 is selectively communicated with the resonant circuit 25 .
  • the driving coil 20 is connected to the resonant circuit 25, the resonant circuit 25 makes the frequency of the driving coil 20 and the receiving coil 12 the same, so that the driving coil 20 and the receiving coil 12 resonate, and efficient wireless charging can be realized.
  • the medical device 1 may be a capsule-type device, which can enter the digestive tract of the subject 4 for scanning and shooting to obtain real-time images.
  • the present invention will be described in detail by taking the medical device 1 as a capsule device as an example.
  • the change of the current intensity and/or direction in the first coil group 21 , the second coil group 22 and the third coil group 23 can control the change of the posture and position of the medical device 1 .
  • the magnetic field driving device 2 also includes a fourth coil group 24 axially arranged around the body of the subject 4, which is used to generate a magnetic field with uniform intensity; the current intensity and/or direction in the fourth coil group 24 are changed , to control the rotational orientation of the medical device 1 along the body axis of the subject 4 .
  • the fourth coil group 24 has a helical shape and thus may also be referred to as a solenoid coil. Similar to the other three coil sets, the fourth coil set 24 can also be used as a transmitting coil in communication with the resonant circuit 25 to supply power to the receiving coil 12 .
  • the two first coils 211 are positioned coaxially and in parallel.
  • the distance between the two first coils 211 is substantially equal to their diameters.
  • the diameters of the two first coils 211 should be substantially the same.
  • the second coil 221 and the third coil 231 can be arranged in a manner similar to that of the first coil 211 .
  • the fact that the first coil group 21 , the second coil group 22 and the third coil group 23 are orthogonal to each other refers to the connection of the two first coils 211 , the connection of the two second coils 221 and the two third coils 231 The lines are perpendicular to each other.
  • the intensity and direction of the magnetic field generated by the corresponding coil group can be changed.
  • the first coil set 21 can generate a gradient magnetic field along the body axial direction of the subject 4 , so that the movement of the medical device 1 in the body cavity of the subject 4 along the body axial direction can be controlled.
  • the second coil group 22 and the third coil group 23 can generate a magnetic field (or gradient magnetic field) with uniform intensity, so that the medical device 1 can be controlled to rotate (or move) around the body in the body cavity of the subject 4 .
  • the strength and direction of the current passing through the fourth coil group 24 change, the strength and direction of the magnetic field in the coil also change, so that the rotational orientation of the medical device 1 along the body axis of the subject 4 can be controlled.
  • the magnetic field drive device 2 further includes an examination channel for passing the movable examination couch 3 carrying the subject 4 therethrough.
  • the subject 4 needs to lie down on the movable examination bed 3 after swallowing the medical device 1 .
  • the stomach of the subject 4 can be located within the magnetic field coverage of the magnetic field driving device 2 .
  • One or more magnets 11 are disposed inside the housing 17 of the medical device 1 (capsule device), and the plurality of magnets 11 are respectively located at different positions in the housing 17 of the capsule device.
  • the polarization direction of the magnet 11 is parallel or perpendicular to the axial direction of the housing 17 of the capsule device. In the embodiment shown in FIG. 4 , the polarization direction of the magnet 11 is parallel to the axial direction of the housing 17 .
  • the magnet 11 Under the influence of the magnetic field generated by the driving coil 20 , the magnet 11 can provide torque and magnetic force to the medical device 1 , so that it can rotate, move, and orient in the digestive tract of the subject 4 .
  • the receiving coils 12 may be one or more, and the axial direction of the receiving coils 12 is perpendicular or parallel to the axial direction of the housing 17 of the capsule device.
  • the plurality of receiving coils 12 are respectively located at different positions in the casing 17 of the capsule device, and the plurality of receiving coils 12 can individually receive the energy of one or more groups of driving coils 20 in different directions, and can also receive multiple groups of energy simultaneously. The energy to drive the coil 20 .
  • the casing 17 of the capsule device includes a hemispherical tip cap 171 formed of a translucent member and a cylindrical body 172 having a hemispherical end. Inside the top cover 171, an image signal acquisition circuit 13 having a camera and an illuminating element is arranged so that an image of the digestive tract can be taken.
  • the capsule device may also include one or more sensor circuits, which may be external to the housing 17 or independent of the housing 17 .
  • These sensor circuits may include a single sensor circuit for sensing a particular physiological or neurological parameter associated with the patient in order to sense one or more physiological parameters associated with the patient.

Abstract

一种磁控和无线充电系统,包括医疗装置(1)和磁场驱动装置(2),磁场驱动装置(2)包括多组驱动线圈(20);驱动线圈(20)不仅能够产生磁场以驱动医疗装置(1)进行姿态和方位的调整,同时还可向医疗装置(1)供电,可以实现高效的无线充电,从而使医疗装置(1)具有更大图像分辨率和帧率以及更长的工作时间。

Description

磁控和无线充电系统
相关申请的交叉引用
本申请要求享有于2021年3月25日提交的中国专利申请CN 202110322365.6的优先权,上述申请的全部内容通过引用并入本文中。
技术领域
本发明涉及医疗器械技术领域,特别地涉及一种磁控和无线充电系统。
背景技术
对于用以体内检查的胶囊式装置,一般采用机械臂方式带动永磁体来控制胶囊的移动,如中国专利CN201510567611.9公开了的控制胶囊内窥镜在人体消化道运动的装置及方法,这种方式控制胶囊运动的速度较慢。此外,现有的胶囊式装置,一般采用电池供电的方式提供能量,如中国专利CN202020507120.1公开的双镜头胶囊内窥镜的天线结构,但是采用电池供电的方式由于体积受限,因此使电池电量有限,从而无法提供更大图像分辨率和帧率以及更长的工作时间。
发明内容
本发明提供一种磁控和无线充电系统,用于支持医疗装置实现更大图像分辨率和帧率以及更长的工作时间。
本发明提供一种磁控和无线充电系统,包括:
医疗装置,其用于置于受检者体腔内并获取体腔内指定位置的信息;以及
磁场驱动装置,所述磁场驱动装置包括多组驱动线圈;
其中,所述驱动线圈可产生磁场以控制所述医疗装置按照指定方向进行运动;所述驱动线圈采用无线供电的方式向所述医疗装置提供能量。
在一个实施方式中,所述医疗装置中设置有接收线圈,所述驱动线圈与谐振电路选择性连通;
当所述驱动线圈与所述谐振电路连通时,所述驱动线圈与所述接收线圈产生共振以向所述医疗装置提供能量。
在一个实施方式中,所述多组驱动线圈包括第一线圈组、第二线圈组和第三线圈组;
所述第一线圈组沿受检者的身体轴向设置,用于产生沿受检者身体轴向方向的梯度磁场或强度均匀的磁场;所述第二线圈组和所述第三线圈组分别围绕受检者的身体四周分布,用于产生梯度磁场或强度均匀的磁场;
其中,所述第一线圈组、所述第二线圈组和所述第三线圈组产生磁场的可控制所述医疗装置的姿态与位置的改变,且所述第一线圈组、所述第二线圈组和所述第三线圈组中的一个或多个分别与对应的所述谐振电路选择性连通。
在一个实施方式中,所述磁场驱动装置还包括环绕受检者的身体轴向设置的第四线圈组,其用于产生强度均匀的磁场;所述第四线圈组与谐振电路选择性连通。
在一个实施方式中,所述驱动线圈与独立的可编程的电源控制装置选择性相连,且所述驱动线圈与所述电源控制装置和所述谐振电路不同时连通。
在一个实施方式中,所述驱动线圈采用无线供电的方式向所述医疗装置提供能量时的无线充电频率不低于100KHz。
在一个实施方式中,所述医疗装置为胶囊式装置。
在一个实施方式中,所述胶囊式装置内设置有图像信号采集电路、无线通信电路、储能电路和无线供电调制电路;
所述图像信号采集电路与所述无线通信电路相连,以将信号通过无线通信电路进行传输;
所述无线供电调制电路分别与所述接收线圈和所述储能电路相连,以将所述接收线圈的能量输入所述储能电路进行存储,所述储能电路还与所述无线通信电路以及其他电路相连从而为所述磁控和无线充电系统供电。
在一个实施方式中,所述胶囊式装置的内部设置有一个或多个磁体,多个所述磁体分别位于所述胶囊式装置的不同部位;所述磁体的极化方向与所述胶囊式装置的轴向方向平行或垂直。
在一个实施方式中,所述接收线圈为一个或多个,所述接收线圈的轴向方向与所述胶囊式装置的轴向方向垂直或平行;
其中,多个所述接收线圈分别位于所述胶囊式装置的不同部位,且多个所述接收线圈可单独在不同方向上接收能量,也可同时接收能量。
与现有技术相比,本发明的优点在于:驱动线圈不仅能够产生磁场以驱动医 疗装置进行姿态和方位的调整,同时还可做为无线发送线圈向医疗装置供电,可以实现高效的无线充电,从而使医疗装置具有更大图像分辨率和帧率以及更长的工作时间。
附图说明
在下文中将基于实施例并参考附图来对本发明进行更详细的描述。
图1是本发明的实施例中磁控和无线充电系统使用状态示意图;
图2是本发明的实施例中磁场驱动装置的立体图;
图3是本发明的实施例中磁场驱动装置的与谐振电路以及电源控制装的连接关系示意图;
图4是本发明的实施例中医疗装置的结构示意图。
附图标记:
1-医疗装置;11-磁体;12-接收线圈;13-图像信号采集电路;14-无线供电调制电路;15-储能电路;16-无线通信电路;17-外壳;171-顶端盖;172-主体;
2-磁场驱动装置;20-驱动线圈;21-第一线圈组;22-第二线圈组;23-第三线圈组;24-第四线圈组;25-谐振电路;26-电源控制装置;27-开关;
3-可移动检查床;4-受检者。
具体实施方式
下面将结合附图对本发明作进一步说明。
如图1-4所示,本发明提供一种磁控和无线充电系统,包括医疗装置1和磁场驱动装置2,医疗装置1用于置于受检者4体腔内并获取体腔内指定位置的信息。磁场驱动装置2能够在受检者4外部产生磁场并对医疗装置施加作用力,则医疗装置1在体外磁场的驱动下可按照指定方向进行运动已完成相应的检查。此外,磁场驱动装置2还能采用无线供电的方式向医疗装置1提供能量,从而使医疗装置1具有更大图像分辨率和帧率以及更长的工作时间。
具体来说,磁场驱动装置2包括多组驱动线圈20,驱动线圈20能够可产生磁场以控制医疗装置1按照指定方向进行运动。此外,驱动线圈20还可作为发送线圈以无线供电的方式向医疗装置1中供电。
其中,医疗装置1中设置有接收线圈12,如图3所示,驱动线圈20与谐振电路25选择性连通。当驱动线圈20与谐振电路25连通时,谐振电路25使驱动线圈20与接收线圈12的频率相同,从而使驱动线圈20和接收线圈12产生共振,即可实现高效的无线充电。
需要说明的是,驱动线圈20采用无线供电的方式向医疗装置1提供能量时的无线充电频率不低于100KHz。
医疗装置1可以是胶囊式装置,其可以进入受检者4的消化道进行扫描拍摄以获取实时影像。
下面以医疗装置1为胶囊式装置为例,对本发明进行详细地说明。
如图1和2所示,磁场驱动装置2包括相互正交的第一线圈组21、第二线圈组22和第三线圈组23。第一线圈组21沿受检者4的身体轴向设置,用于产生沿受检者4身体轴向方向的梯度磁场或强度均匀的磁场。第二线圈组22和第三线圈组23分别围绕受检者4的身体四周分布,用于产生梯度磁场或强度均匀的磁场。
其中,第一线圈组21、第二线圈组22和第三线圈组23中的电流强度和/或方向发生改变可控制医疗装置1的姿态与位置的改变。
并且第一线圈组21、第二线圈组22和第三线圈组23中的一个或多个分别与对应的谐振电路25选择性地连通。从而使第一线圈组21、第二线圈组22和第三线圈组23中的每个都单独作为发送线圈向接收线圈12供电,也可同时作为发送线圈向接收线圈12供电。
进一步地,磁场驱动装置2还包括环绕受检者4的身体轴向设置的第四线圈组24,其用于产生强度均匀的磁场;第四线圈组24中的电流强度和/或方向发生改变,以控制医疗装置1沿受检者4的身体轴向旋转定向。
第四线圈组24呈螺旋状,因此可也称为螺线管线圈。与其他三个线圈组类似,第四线圈组24也可作为发送线圈与谐振电路25连通,从而向接收线圈12供电。
驱动线圈20还可与电源控制装置26相连。具体地,第一线圈组21、第二 线圈组22、第三线圈组23和第四线圈组24分别与独立的可编程的电源控制装置26相连,从而独立控制每个线圈的电流方向和大小。
如图3所示,驱动线圈20与电源控制装置26和谐振电路25不同时连通。通过开关27可以选择使驱动线圈20与电源控制装置26导通或者使驱动线圈20与谐振电路25导通。
第一线圈组21可以设置至少两个第一线圈211,如图2所示,两个第一线圈211在Z向上相对设置。其中,Z向为受检者4的身体轴向方向(即沿受检者的脚部至头部的方向)。
其中,两个第一线圈211中的电流同向时,则产生强度均匀的磁场;两个第一线圈211中的电流反向时,则产生梯度磁场。即两个第一线圈211可以是亥姆霍兹型线圈,也可以使用其他线圈(例如麦克斯韦线圈)配置来获得不同的结果,并且可以包括更改线圈数量、线圈直径、每个线圈中的匝数或线圈分离度和倾斜度。
在亥姆霍兹线圈中,两个第一线圈211同轴且平行地定位。两个第一线圈211之间的距离基本等于其直径。为了确保最大的工作效率,两个第一线圈211直径应基本相同。
为了解决与较大直径和多匝传输线圈相关的高阻抗限制,可以将第一线圈211分成多个较小的线圈段将其并联,各线圈段可以相同。
同样地,第二线圈组22可以设置至少两个第二线圈221,两个第二线圈221在X向上相对设置,其中X向为受检者4的身体周向方向(即沿受检者的右臂至左臂的方向)。其中,两个第二线圈221中的电流同向时,则产生强度均匀的磁场;两个第二线圈221中的电流反向时,则产生梯度磁场。第三线圈组23可以设置至少两个第三线圈231,两个第三线圈231在Y向上相对设置,其中Y向为受检者4的身体周向方向(即沿受检者的背部至面部的方向)。其中,两个第三线圈231中的电流同向时,则产生强度均匀的磁场;两个第三线圈231中的电流反向时,则产生梯度磁场。X向、Y向和Z向构成三维直角坐标系。
第二线圈221和第三线圈231可以采用与第一线圈211类似的设置方式。
因此,第一线圈组21、第二线圈组22和第三线圈组23相互正交是指两个 第一线圈211的连线、两个第二线圈221的连线以及两个第三线圈231的连线相互垂直。
通过控制每个线圈中通过的电流强度和方向发生改变,可使相应的线圈组产生的磁场强度和方向发生改变。例如,第一线圈组21可以产生沿受检者4身体轴向方向的梯度磁场,从而可以控制医疗装置1在受检者4的体腔内沿其身体轴向方向的移动。第二线圈组22和第三线圈组23可以产生强度均匀的磁场(或梯度磁场),从而可以控制医疗装置1在受检者4的体腔内进行绕身体四周方向的旋转运动(或移动)。第四线圈组24中通过的电流强度和方向发生改变时,线圈内的磁场强度和方向也会发生改变,从而可以控制医疗装置1沿受检者4身体轴向的旋转定向。
如图1和2所示,磁场驱动装置2还包括检查通道,检查通道用于使承载有受检者4的可移动检查床3穿过。受检者4需要吞服医疗装置1后,平躺在可移动检查床3上。移动可移动检查床3,可以使受检者4的胃部居于磁场驱动装置2的磁场覆盖范围内。
医疗装置1(胶囊式装置)包括外壳17,外壳17内设置有图像信号采集电路13、无线通信电路16、储能电路15和无线供电调制电路14。图像信号采集电路13与无线通信电路16相连,以将信号通过无线通信电路16进行传输。无线通信电路16还与无线接收电路相连,从而通过无线接收电路将图像信号采集电路13的信号显示在显示屏上。
无线供电调制电路14分别与接收线圈12和储能电路15相连,以将接收线圈12的能量输入储能电路15进行存储。储能电路15还与无线通信电路16相连以及其他电路相连,从而作为电源向各电路供电。
医疗装置1(胶囊式装置)的外壳17的内部设置有一个或多个磁体11,多个磁体11分别位于胶囊式装置的外壳17中的不同部位。磁体11的极化方向与胶囊式装置的外壳17的轴向方向平行或垂直。如图4所示的实施例中,磁体11的极化方向与外壳17的轴向方向平行。磁体11在驱动线圈20产生的磁场的影响下,可对医疗装置1提供转矩及磁力,使之在受检者4的消化道内进行旋转、移动、定向等运动。
接收线圈12可以是一个或多个,接收线圈12的轴向方向与胶囊式装置的外壳17的轴向方向垂直或平行。其中,多个接收线圈12分别位于胶囊式装置的外壳17中的不同部位,且多个接收线圈12可单独在不同方向上接收一组或多组驱动线圈20的能量,也可同时接收多组驱动线圈20的能量。
胶囊式装置的外壳17包括由透光性构件形成的半球形的顶端盖171和具有半球形的端部的圆筒状的主体172。在顶端盖171的内部,布置了具有照相机和照明元件的图像信号采集电路13,使得可以拍摄消化道的影像。
在一些可选的实施例中,胶囊式装置还可包括一个或多个传感器电路,其可以位于外壳17之外或者相对于外壳17独立。这些传感器电路可以包括用于感测与患者相关的特定生理或神经学参数的单个传感器电路,以为感测与患者相关的一个或多个生理参数。
虽然已经参考优选实施例对本发明进行了描述,但在不脱离本发明的范围的情况下,可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是,只要不存在结构冲突,各个实施例中所提到的各项技术特征均可以任意方式组合起来。本发明并不局限于文中公开的特定实施例,而是包括落入权利要求的范围内的所有技术方案。

Claims (10)

  1. 一种磁控和无线充电系统,其特征在于,包括:
    医疗装置(1),其用于置于受检者(4)体腔内并获取体腔内指定位置的信息;以及
    磁场驱动装置(2),所述磁场驱动装置(2)包括多组驱动线圈(20);
    其中,所述驱动线圈(20)可产生磁场以控制所述医疗装置(1)按照指定方向进行运动;所述驱动线圈(20)采用无线供电的方式向所述医疗装置(1)提供能量。
  2. 根据权利要求1所述的磁控和无线充电系统,其特征在于,所述医疗装置(1)中设置有接收线圈(12),所述驱动线圈(20)与谐振电路(25)选择性连通;
    当所述驱动线圈(20)与所述谐振电路(25)连通时,所述驱动线圈(20)与所述接收线圈(12)产生共振以向所述医疗装置(1)提供能量。
  3. 根据权利要求2所述的磁控和无线充电系统,其特征在于,所述多组驱动线圈(20)包括第一线圈组(21)、第二线圈组(22)和第三线圈组(23);
    所述第一线圈组(21)沿受检者(4)的身体轴向设置,用于产生沿受检者(4)身体轴向方向的梯度磁场或强度均匀的磁场;所述第二线圈组(22)和所述第三线圈组(23)分别围绕受检者(4)的身体四周分布,用于产生梯度磁场或强度均匀的磁场;
    其中,所述第一线圈组(21)、所述第二线圈组(22)和所述第三线圈组(23)产生磁场的可控制所述医疗装置(1)的姿态与位置的改变,且所述第一线圈组(21)、所述第二线圈组(22)和所述第三线圈组(23)中的一个或多个分别与对应的所述谐振电路(25)选择性连通。
  4. 根据权利要求2或3所述的磁控和无线充电系统,其特征在于,所述磁场驱动装置(2)还包括环绕受检者(4)的身体轴向设置的第四线圈组(24),其用于产生强度均匀的磁场;所述第四线圈组(24)与谐振电路(25)选择性连通。
  5. 根据权利要求2所述的磁控和无线充电系统,其特征在于,所述驱动线圈(20)与独立的可编程的电源控制装置(26)选择性相连,且所述驱动线圈(20) 与所述电源控制装置(26)和所述谐振电路(25)不同时连通。
  6. 根据权利要求1-3中任一项所述的磁控和无线充电系统,其特征在于,所述驱动线圈(20)采用无线供电的方式向所述医疗装置(1)提供能量时的无线充电频率不低于100KHz。
  7. 根据权利要求2或3所述的磁控和无线充电系统,其特征在于,所述医疗装置(1)为胶囊式装置。
  8. 根据权利要求7所述的磁控和无线充电系统,其特征在于,所述胶囊式装置内设置有图像信号采集电路(13)、无线通信电路(14)、储能电路(15)和无线供电调制电路(16);
    所述图像信号采集电路(13)与所述无线通信电路(14)相连,以将信号通过无线通信电路(14)进行传输;
    所述无线供电调制电路(16)分别与所述接收线圈(12)和所述储能电路(15)相连,以将所述接收线圈(12)的能量输入所述储能电路(15)进行存储,所述储能电路(15)还与所述无线通信电路以及其他电路相连从而为所述磁控和无线充电系统供电。
  9. 根据权利要求7所述的磁控和无线充电系统,其特征在于,所述胶囊式装置的内部设置有一个或多个磁体(11),多个所述磁体(11)分别位于所述胶囊式装置的不同部位;所述磁体(11)的极化方向与所述胶囊式装置的轴向方向平行或垂直。
  10. 根据权利要求7所述的磁控和无线充电系统,其特征在于,所述接收线圈(12)为一个或多个,所述接收线圈(12)的轴向方向与所述胶囊式装置的轴向方向垂直或平行;
    其中,多个所述接收线圈(12)分别位于所述胶囊式装置的不同部位,且多个所述接收线圈(12)可单独在不同方向上接收能量,也可同时接收能量。
PCT/CN2021/121627 2021-03-25 2021-09-29 磁控和无线充电系统 WO2022198976A1 (zh)

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