公开(公告)号：US06248083B1

公开(公告)日：2001-06-19

申请号：US09399097

申请日：1999-09-20

Applicant: Leif Smith ,  Lars Tenerz

Inventor： Leif Smith ,  Lars Tenerz

IPC: A61B500

CPC classification number: A61B5/0215 ,  A61B2017/00482

Abstract: The invention relates to a guide wire assembly, having a guide wire (2) having a distal end portion (16) and a proximal end, wherein a measuring device (14) is mounted in the distal end portion (16) of the guide wire (2). It also has an interface cable (4) having a first end connectable to a control unit (8), and a second end connectable to the proximal end of the guide wire. Furthermore there is provided information storage (20; 22; Rx) on the interface cable, containing calibration/temperature compensation data, uniquely characteristic of the measuring device. The data and an uncompensated output from the measuring device forming the input for calculation of a correct measurement value.

Abstract translation: 本发明涉及一种导线组件，其具有具有远端部分（16）和近端的导丝（2），其中测量装置（14）安装在导丝的远端部分（16）中 （2）。 它还具有接口电缆（4），其具有可连接到控制单元（8）的第一端和可连接到导丝的近端的第二端。 此外，在接口电缆上提供信息存储（20; 22; Rx），包含校准/温度补偿数据，测量设备的独特特征。 该数据和来自测量装置的未补偿的输出形成用于计算正确测量值的输入。

公开(公告)号：US6112598A

公开(公告)日：2000-09-05

申请号：US952825

申请日：1997-12-04

Applicant: Lars Tenerz ,  Ola Hammarstrom ,  Leif Smith

Inventor： Lars Tenerz ,  Ola Hammarstrom ,  Leif Smith

IPC: A61B5/0215 ,  A61M25/00 ,  A61M25/01 ,  A61M25/09 ,  G01L9/00 ,  G01L7/00

CPC classification number: G01L19/142 ,  A61B5/0215 ,  A61B5/6851 ,  A61M25/09 ,  G01L19/147 ,  A61M2025/0002 ,  A61M2025/09175

Abstract: The invention relates to a sensor/guide wire device for biological pressure measurements having a guide wire (16, 17, 18, 21, 23) having a distal and a proximal end, and a pressure sensor device (19) mounted at the distal end of the guide wire. The distal portion can be a solid wire member (16) surrounded by a spiral member (18), and the sensor (19) can be an electrical sensor of a piezoresistive type. The sensor (19) is mounted on the solid wire (16). The sensor is mounted in a cantilevering fashion such that a pressure sensitive end of the sensor does not contact any structure other than its mount. This prevents forces (bending artifacts) from being exerted on the sensor, which could otherwise interfere with pressure measurements.

Abstract translation: PCT No.PCT / SE96 / 00798 Sec。 371 1997年12月4日第 102（e）1997年12月4日，PCT PCT 1996年6月18日PCT公布。 公开号WO97 / 00641 日期1997年1月9日本发明涉及一种用于生物压力测量的传感器/导丝装置，其具有具有远端和近端的导丝（16,17,18,21,23）和压力传感器装置（19） 安装在导丝的远端。 远侧部分可以是由螺旋构件（18）包围的实心线构件（16），并且传感器（19）可以是压阻型的电传感器。 传感器（19）安装在实心线（16）上。 传感器以悬臂方式安装，使得传感器的压力敏感端不接触除了其安装件之外的任何结构。 这防止了力（弯曲伪影）施加在传感器上，否则可能会干扰压力测量。

公开(公告)号：US6089103A

公开(公告)日：2000-07-18

申请号：US73061

申请日：1998-05-06

Applicant: Leif Smith

Inventor： Leif Smith

IPC: A61B5/028 ,  A61B5/0295 ,  G01F1/708 ,  G01L9/00

CPC classification number: A61B5/028 ,  G01F1/7084

Abstract: A system and method for measuring flow of a fluid flowing in a narrow channel. A sensor is provided, having an element sensitive to pressure, and an element sensitive to a selected chemical or physical property, both arranged at the distal end of a guide wire, for registering pressure values and values of said selected chemical or physical property. The sensor is located at a point of measurement in the narrow channel. A bolus of liquid having a property distinguishable from the selected property of the flowing fluid and detectable by the second sensitive element is injected into the fluid, and registered with said first sensitive element is a pressure pulse resulting from said injecting step. A point in time of the pulse is taken as a starting point for measuring elapsed time. Registered with the second sensitive element is the distinguishable property of the bolus in the fluid when the bolus in the fluid passes the second sensitive element. The elapsed time from the injecting of the bolus, up to the registering of the distinguishable property is noted, and a flow parameter is calculated on the basis of a value of the registered pressure pulse and a value of the distinguishable property.

Abstract translation: 用于测量在狭窄通道中流动的流体的流动的系统和方法。 提供具有对压力敏感的元件的传感器和对所选择的化学或物理性质敏感的元件，两者都布置在引导线的远端处，用于记录所选择的化学或物理性质的压力值和值。 传感器位于狭窄通道中的测量点。 将具有与流动流体的选定性质区分开并且可被第二敏感元件检测的特性的性质的液体注射到流体中，并且与所述第一敏感元件配准是由所述注射步骤产生的压力脉冲。 将脉冲的时间点作为测量经过时间的起点。 与第二敏感元件一起注册的是当流体中的推注通过第二敏感元件时液体中的推注的可区分的特性。 注意从注射大剂量所经过的时间，直到可区分性质的登记，并且基于登记的压力脉冲的值和可区分性质的值来计算流动参数。