公开(公告)号：US20060122556A1

公开(公告)日：2006-06-08

申请号：US11211562

申请日：2005-08-26

Applicant: Atul Kumar ,  Alkar Kumar

Inventor： Atul Kumar ,  Alkar Kumar

IPC: A61M31/00

CPC classification number: A61B1/015 ,  A61M1/0058 ,  A61M1/0072 ,  A61M3/0258 ,  A61M2205/3337

Abstract: The present invention provides a system and a method for distending a body tissue cavity of a subject by continuous flow irrigation by using two positive displacement pumps, such as peristaltic pumps, one pump on the inflow side and another pump on the outflow side, such that the amplitude of the pressure pulsations created by a the said positive displacement pumps inside the tissue cavity is substantially dampened to almost negligible levels. The present invention also provides a method of reducing the frequency of the said pressure pulsations. The present invention also provides a method for accurately determining the rate of fluid loss, into the subject's body system, during any endoscopic procedure without utilizing any deficit weight or fluid volume calculation, the same being accomplished by using two fluid flow rate sensors. The present invention also provides a system of creating and maintaining any desired pressure in a body tissue cavity for any desired cavity outflow rate. The system and the methods of the present invention described above can be used in any endoscopic procedure requiring continuous flow irrigation few examples of such endoscopic procedures being hysteroscopic surgery, arthroscopic surgery, trans uretheral surgery, endoscopic surgery of the brain and endoscopic surgery of the spine.

Abstract translation: 本发明提供一种系统和方法，其通过使用两个容积式泵，例如蠕动泵，流入侧的一个泵和流出侧的另一个泵，通过连续流动冲洗来膨胀受试者的身体组织腔，使得 由组织空腔内的所述正位移泵产生的压力脉动的幅度基本上被抑制到几乎可忽略的水平。 本发明还提供一种降低所述压力脉动频率的方法。 本发明还提供了一种用于在任何内窥镜程序中精确地确定流体损失速率的方法，而不使用任何缺陷重量或流体体积计算，这通过使用两个流体流速传感器来实现。 本发明还提供了一种在任何期望的腔体流出速率下，在身体组织腔中产生和维持任何所需压力的系统。 上述本发明的系统和方法可用于需要连续流动灌洗的任何内窥镜程序中，这种内窥镜手术的例子是宫腔镜手术，关节镜手术，经皮穿刺手术，脑内窥镜手术和脊柱内窥镜手术 。