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Systems and methods for detecting tissue contact and needle penetration depth using static fluid pressure measurements
Systems and methods for detecting tissue contact and needle penetration depth using static fluid pressure measurements
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机译:使用静态流体压力测量来检测组织接触和针头穿透深度的系统和方法
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摘要
Systems and methods for determining tissue contact and penetration depth are provided. In one aspect, the system includes a needle and a pressure measurement assembly. The needle, in one exemplary embodiment, includes a first end and a second end with at least one aperture located a predetermined distance from the first end. The fluid pressure measurement assembly is connected with a portion of the needle to measure pressure of fluid dispensed in the needle. The fluid pressure measurement assembly measures a first pressure of the fluid, a second pressure when the needle contacts tissue and a third pressure when the needle penetrates the tissue and the aperture becomes occluded.
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