CN202933393U - 一种具有无线通信天线的植入式医疗设备及系统 - Google Patents
一种具有无线通信天线的植入式医疗设备及系统 Download PDFInfo
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Abstract
本实用新型公开了一种具有无线通信天线的植入式医疗设备，包括外壳、设置在外壳上的头部，头部包括多个用于连接植入电极的金属挡块、无线通信天线，无线通信天线至少包括一迂回弯折部，迂回弯折部设置在金属挡块的上方。本实用新型还提供了一种该植入式医疗设备的植入式医疗系统，与现有技术相比，由于本实用新型无线通信通信的迂回弯折的形状使无线通信天线的长度增加了，满足了无线通信天线长度要求。迂回弯折部设置在金属挡块的上方，巧妙地利用了金属挡块上方的空间并有效地避开了金属挡块的干扰，使无线通信天线能够在较低的发射功率下和体外控制装置可靠通信，且体积较小便于植入人体体内，减少了高频辐射对人体的危害。
Description
技术领域
本实用新型涉及植入式医疗系统，尤其是一种具有无线通信天线的植入式医疗设备及植入式医疗系统。
背景技术
植入式医疗系统通常包括植入式神经电刺激系统(包括脑深部电刺激DBS，植入式脑皮层刺激CNS，植入式脊髓电刺激SCS，植入式骶神经电刺激SNS，植入式迷走神经电刺激VNS等)、植入式心脏电刺激系统(俗称心脏起搏器)、植入式药物输注系统(IDDS)等。
以植入式神经电刺激系统为例，主要包括植入体内的脉冲发生器、电极以及体外的控制装置。其中，脉冲发生器与电极相连接，从而将脉冲发生器所产生的脉冲传输到电极，脉冲发生器产生的脉冲信号由电极传输至特定神经靶点进行电刺激，从而使人体机能恢复到正常运作的状态。体外控制装置包括医生程控器、病人控制器。
其中，病人控制器是为病人配备的用来根据自己的情况控制开关或者调节体内脉冲发生器的输出参数的装置，病人通常仅能够在医生设置的调节范围内自行调节。医生程控器是医生用来根据病人情况监控调节体内脉冲发生器的输出参数的装置，通常一个医生程控器可用来控制多个脉冲发生器。病人控制器和医生程控器可通过无线通信模式、磁性线圈或其他通信方式与脉冲发生器进行通信。
现有技术中的植入式医疗设备中通过设置无线通信天线与体外控制装置进行无线通信，由于植入式医疗设备与体外控制的通信频率在402～405MHz之间，因此对于单极天线来说通常需要较长的长度才能达到需要的通信距离和效果，对于植入式医疗设备内部极为有限的空间来说较为困难。并且，由于植入式医疗设备的头部设置有用于连接电极的八个金属挡块，而在狭小的空间内如何减少该金属挡块对天线通信的干扰是改善无线通信质量亟待解决的问题。
实用新型内容
针对现有技术中存在的不足，本实用新型要解决的技术问题是提供一种具有无线通信天线的植入式医疗设备，它能够在较低的发射功率下和体外控制装置可靠通信，且体积较小便于植入人体体内。
根据本实用新型所提供的技术方案，一种具有无线通信天线的植入式医疗设备，包括：
外壳，所述外壳的内腔体内设置有电路板；
设置在所述外壳上的头部，所述头部包括多个用于连接植入电极的金属挡块、用于在植入式医疗设备与体外控制装置之间传输无线通信信号的无线通信天线，所述无线通信天线的一端与所述电路板相连接；所述无线通信天线至少包括一迂回弯折部，所述迂回弯折部设置在金属挡块的上方。
优选地，所述金属挡块包括两组平行设置的第一组金属挡块和第二组金属挡块，所述迂回弯折部位于所述第一组金属挡块和第二组金属挡块之间空隙的上方，且迂回弯折部与第一组金属挡块和第二组金属挡块之间的距离相等。
优选地，所述无线通信天线包括分别连接在迂回弯折部两端的第一端部和第二端部，所述第一端部与电路板相连接，所述第二端部与所述外壳的壳体相连接。
优选地，所述无线通信天线的第一端部和/或第二端部为迂回弯折形状。
优选地，所述无线通信天线的迂回弯折部、第一端部和第二端部均位于同一平面内。
优选地，所述无线通信天线为单极天线。
优选地，所述无线通信天线的第二端部为自由端。
优选地，所述迂回弯折部呈蛇形且包括多个均匀分布且首尾相连接的U形天线单元，所述每个U形天线单元之间的间隔为0.4～1mm。
优选地，所述无线通信天线的中心频率为403.5MHz，带宽至少为3MHz。
优选地，所述电路板包括无线通信天线的第一端部相连接的匹配电路和无线信号发射/接收电路。
优选地，所述电路板水平放置在所述外壳的口部。
本实用新型还提供了一种植入式医疗系统，包括体外控制器、电极，还包括上述的具有无线通信天线的植入式医疗设备。
与现有技术相比本实用新型的优点是：由于无线通信天线至少包括一迂回弯折部，由于迂回弯折的形状使无线通信天线的长度增加了，满足了无线通信天线长度要求。并且，迂回弯折部设置在金属挡块的上方，巧妙地利用了金属挡块上方的空间并有效地避开了金属挡块的干扰，使无线通信天线能够在较低的发射功率下和体外控制装置可靠通信，且体积较小便于植入人体体内，减少了高频辐射对人体的危害。
附图说明
附图1为植入式医疗系统的结构示意图；
附图2为植入式医疗设备的结构示意图；
附图3为本实用新型的无线通信天线与金属挡块之间的位置关系示意图(第二端部为自由端)；
附图4为附图3的无线通信天线与金属挡块之间的位置关系俯视示意图；
附图5为本实用新型的无线通信天线电路连接结构示意图；
附图6为本实用新型的无线通信天线与金属挡块之间的位置关系示意图(第二端部连接在壳体上)；
附图7为本实用新型的无线通信天线的另一结构示意图；
附图8为本实用新型的无线通信天线的另一结构示意图；
附图9为本实用新型的无线通信天线的另一结构示意图；
附图10为本实用新型的无线通信天线的另一结构示意图；
其中：
1、植入式医疗设备；10、外壳；101、电路板；102、匹配电路；103、无线信号发射/接收电路；20、头部；201、金属挡块；2011、第一组金属挡块；2012、第二组金属挡块；202、无线通信天线；203、迂回弯折部；2031、U形天线单元；204、第一端部；205、第二端部；2、电极；3、体外控制装置。
具体实施方式
下面结合附图对本实用新型作进一步详细的说明：
参照图1，以植入神经电刺激系统为例，主要包括植入体内的植入式医疗设备1、电极3，以及位于体外的控制装置2，本实施方式中植入式医疗设备1为植入式脉冲发生器。植入式脉冲发生器与电极3电连接，从而将植入式脉冲发生器所产生的脉冲传输到电极3，以对神经靶点进行电刺激，达到治疗的效果。电极3具有4对触点，该4对触点与植入式脉冲发生器的头部的4对金属挡块相对应，用于将电极3与脉冲发生器相固定连接。
参照图2和图3，一种具有无线通信天线的植入式医疗设备1，包括外壳10，所述外壳10的内腔体内设置有电路板101，电路板101包括微处理器单元、匹配电路102和无线信号发射/接收电路103，用于处理天线接收到的无线信号。匹配电路102与无线通信天线202的第一端部204相连接，无线信号发射/接收电路103与匹配电路102相连接。植入式医疗设备1还包括穿出外壳10用于连接电路板101和无线通信天线202的馈通连接器(feedthrough)。电路板101水平放置在外壳10的口部，节约了壳体的内部空间，使得植入式医疗设备1的尺寸可以做的较小。
植入式医疗设备1的外壳10上设置有头部20，所述头部20包括多个用于连接植入电极2的金属挡块201、用于在植入式医疗设备1与体外控制装置3之间传输无线通信信号的无线通信天线202，所述无线通信天线202的一端与所述电路板101相连接；所述无线通信天线202至少包括一迂回弯折部203，所述迂回弯折部203设置在金属挡块201的上方。本实用新型无线通信天线202的迂回弯折的形状使无线通信天线的长度增加了，能够满足无线通信天线长度要求，保证无线通信通信质量和通信距离。
具体地说，如图4和图5所示，本实施方式中金属挡块201包括两组平行设置的第一组金属挡块2011和第二组金属挡块2012，第一组金属挡块2011和第二组金属挡块2012均包括4个沿直线排列的金属块。所述迂回弯折部203位于所述第一组金属挡块2011和第二组金属挡块2012之间空隙的上方，且迂回弯折部203与第一组金属挡块2011和第二组金属挡块2012之间的距离相等，巧妙地利用了金属挡块201上方的空间并有效地避开了金属挡块的干扰，使无线通信天线能够在较低的发射功率下和体外控制装置可靠通信。
无线通信天线202包括分别连接在迂回弯折部203两端的第一端部204和第二端部205，第一端部204与电路板101相连接。无线通信天线202的迂回弯折部203、第一端部204和第二端部205均位于同一平面内，无线通信天线202为单极天线，无线通信天线202的第二端部205为自由端。
如图6所示，在不同的实施方式中，无线通信天线202的第二端部205也可以与外壳10的壳体相连接，将壳体作为无线通信天线的延伸部分，从而满足了通信天线的长度要求，使无线通信天线能够在较低的发射功率下和体外控制装置可靠通信，减少了高频辐射对人体的危害。
迂回弯折部203为蛇形，包括多个均匀分布且首尾相连接的U形天线单元2031，所述每个U形天线单元2031之间的间隔为0.4～1mm，本实施方式中的间隔1mm。所述无线通信天线202的中心频率为403.5MHz，带宽至少为3MHz。
如附图7至图10所示，在其他的实施方式中，所述无线通信天线202的第一端部204和/或第二端部205可为迂回弯折形状，也可以由直线段和/或弧线段组成。当然，无线通信天线202的第一端部204和第二端部205也可为不规则的弯折形状。
与现有技术相比，本实用新型的无线通信天线的迂回弯折部使无线通信天线的长度增加了，满足了无线通信天线长度要求。并且，迂回弯折部设置在金属挡块的上方，巧妙地利用了金属挡块上方的空间并有效地避开了金属挡块的干扰，使无线通信天线能够在较低的发射功率下，比如功率小于25uw，就可以和体外控制装置在2米范围内可靠通信，能耗较低有效地延长植入式医疗设备的使用寿命，并且体积较小便于植入人体体内，减少了高频辐射对人体的危害。
本实用新型还提供了一种植入式医疗系统，包括体外控制器、电极，还包括上述的具有无线通信天线的植入式医疗设备，体外控制器通过无线通信天线与植入在病人体内的植入式医疗设备进行无线通信。本实用新型所述的植入式医疗设备可以是植入式神经刺激器、植入式心脏起搏器、植入式心律转复除颤器或者植入式药物输注器中的一种。
本实用新型还可有其他多种实施例，在不背离本实用新型精神及实质的情况下，本领域的技术人员可根据本实用新型作出各种相应的改变和变形，但这些相应的改变和变形都应属于本实用新型的权利要求保护的范围。
Claims (12)
1.一种具有无线通信天线的植入式医疗设备，包括：
外壳，所述外壳的内腔体内设置有电路板；
设置在所述外壳上的头部，所述头部包括多个用于连接植入电极的金属挡块、用于在植入式医疗设备与体外控制装置之间传输无线通信信号的无线通信天线，所述无线通信天线的一端与所述电路板相连接；
其特征在于：所述无线通信天线至少包括一迂回弯折部，所述迂回弯折部设置在金属挡块的上方。
2.根据权利要求1所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述金属挡块包括两组平行设置的第一组金属挡块和第二组金属挡块，所述迂回弯折部位于所述第一组金属挡块和第二组金属挡块之间空隙的上方，且迂回弯折部与第一组金属挡块和第二组金属挡块之间的距离相等。
3.根据权利要求1所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述无线通信天线包括分别连接在迂回弯折部两端的第一端部和第二端部，所述第一端部与电路板相连接，所述第二端部与所述外壳的壳体相连接。
4.根据权利要求3所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述无线通信天线的第一端部和/或第二端部为迂回弯折形状。
5.根据权利要求3所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述无线通信天线的迂回弯折部、第一端部和第二端部均位于同一平面内。
6.根据权利要求1所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述无线通信天线为单极天线。
7.根据权利要求3所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述无线通信天线的第二端部为自由端。
8.根据权利要求1所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述迂回弯折部呈蛇形且包括多个均匀分布且首尾相连接的U形天线单元，所述每个U形天线单元之间的间隔为0.4～1mm。
9.根据权利要求1所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述无线通信天线的中心频率为403.5MHz，带宽至少为3MHz。
10.根据权利要求1所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述电路板包括无线通信天线的第一端部相连接的匹配电路和无线信号发射/接收电路。
11.根据权利要求1所述的一种具有无线通信天线的植入式医疗设备，其特征在于：所述电路板水平放置在所述外壳的口部。
12.一种植入式医疗系统，包括体外控制器、电极，其特征在于：还包括如权利要求1至11中任一所述的具有无线通信天线的植入式医疗设备。
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