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2. 发明申请

WO9900066A8 METHOD AND APPARATUS FOR ASSISTING PERCUTANEOUS COMPUTED TOMOGRAPHY-GUIDED SURGICAL ACTIVITY 审中-公开
标题翻译：用于辅助计算机辅助计算机辅助外科手术活动的方法和装置
公开(公告)号：WO9900066A8
公开(公告)日：1999-09-23
申请号：PCT/NO9800197
申请日：1998-06-29
申请人： NEORAD A S , BRABRAND KNUT
发明人： BRABRAND KNUT
IPC分类号： A61B6/03 , A61B19/00 , A61B17/34
CPC分类号： A61B90/36 , A61B34/10 , A61B90/11 , A61B90/13
摘要： A method and an apparatus for assisting percutaneous computed tomography-guided surgical activity inside a human or animal body, such as withdrawal of body tissue or body liquid sample, withdrawal of excess body liquid, insertion or injection, said method for determining insertion depth, transversal insertion angle and craniocaudal insertion angle for a needle-type surgical instrument to be inserted into the human or animal body from an insertion entry point on a skin surface of said body to a target inside said body. From a first tomography image coordinate values of said entry point are determined, and from said first or a second tomography image coordinate values of said target point are determined. Based on said coordinate values of said insertion depth, transversal insertion angle and craniocaudal insertion angle are calculated. Said calculated values are applied to an instrument insertion guiding apparatus positioned adjacent said body in no physical contact therewith, said apparatus having a laser which provides a laser beam, manipulating adjustment means on said apparatus to let the laser beam assume the values of transversal insertion angle and craniocaudal insertion angle and to let the laser beam point at the entry point. The instrument with a needle pointed end thereof is located at said entry point and a longitudinal axis of the instrument is aligned with said laser beam, the aligning being made by letting a distal end face of said instrument be pointed at by said laser beam.
摘要翻译：一种用于辅助人体或动物体内的经皮计算机断层摄影引导手术活动的方法和装置，例如身体组织或身体液体样品的抽出，多余的身体液体的抽出，插入或注射，所述用于确定插入深度的方法，横向插入角度和头钉插入角度，用于将针型手术器械从所述身体的皮肤表面上的插入入口插入人体或动物体内到达所述身体内的靶。从第一断层图像确定所述入口点的坐标值，并且从所述第一或第二断层摄影图像确定所述目标点的坐标值。基于所述插入深度的所述坐标值，计算横向插入角度和头部插入角度。所述计算值被应用于与所述主体相邻定位的器械插入引导装置，其不与其物理接触，所述装置具有提供激光束的激光器，在所述装置上操纵调节装置以使激光束呈现横向插入角度和颅骨插入角度，并使激光束指向入口点。具有针尖端的仪器位于所述入口点处，并且仪器的纵向轴线与所述激光束对准，通过使所述仪器的远端面通过所述激光束指向而进行对准。

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