Physiological sensor delivery device and method

A delivery device, sensor technology, applied in the direction of sensors, blood characterization devices, blood circulation processing, etc., can solve the problem of difficult to send pressure sensing wires into the anatomical position of interest, increase the location of transverse stenotic lesions and reposition pressure sensing Issues such as time and difficulty of wire

Active Publication Date: 2011-09-28
ACIST MEDICAL SYST
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  • Abstract
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Problems solved by technology

As a result, physicians may find it difficult to feed pressure-sensing leads into anatomical locations of interest relative to "standard" (non-pressure-sensing) medical leads
[0011] Physicians who have grown accustomed to the handling characteristics of particular non-pressure-sensing leads may be reluctant to use pressure-sensing leads, which can increase the time and difficulty of locating and repositioning pressure-sensing leads across stenotic lesions

Method used

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  • Physiological sensor delivery device and method
  • Physiological sensor delivery device and method
  • Physiological sensor delivery device and method

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Embodiment Construction

[0036] The following detailed description should be read with reference to the accompanying drawings, wherein like numerals indicate like elements. The figures, which are not necessarily drawn to scale, depict selected embodiments of the invention - other possible embodiments may become apparent to those skilled in the art having the benefit of these teachings. Accordingly, the embodiments shown in the drawings and described below are for illustrative purposes and are not intended to limit the scope of the invention, which is defined by the appended claims.

[0037] figure 1 An example of a sensor delivery device according to some embodiments of the invention is shown in . figure 1 The sensor delivery device 10 includes a distal cannula 20 having a guidewire lumen 22 for slidably receiving a medical guidewire 30 . A sensor 40 is coupled to the distal cannula 20, the sensor 40 is capable of sensing and / or measuring a physiological parameter of the patient and generating a sig...

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Abstract

An intravascular sensor delivery device for measuring a physiological parameter of a patient, such as blood pressure, within a vascular structure or passage. In some embodiments, the device can be used to measure the pressure gradient across a stenotic lesion or heart valve. For example, such a device may be used to measure fractional flow reserve (FFR) across a stenotic lesion in order to assess the severity of the lesion. The sensor delivery device has a distal sleeve configured to pass or slide over a standard medical guidewire. Some distance back from the sensor and distal sleeve, the device separates from the guidewire to permit independent control of the sensor delivery device and the guidewire. The sensor delivery device can be sized to pass over different sizes of guidewires to enable usage in coronary and peripheral arteries, for example.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 61 / 096,216, filed September 11, 2008, the entire contents of which are incorporated herein by reference. technical field [0003] The present application relates generally to the field of medical device technology, and more particularly, to devices and methods for locating and using physiological sensors in anatomical (eg, vascular) structures of a patient, such as in blood vessels or across heart valves. Background technique [0004] Certain physiological measurements can be made by positioning sensors inside the patient. Such physiological measurements may include, for example, measurements of blood parameters such as blood pressure, oxygen saturation, blood pH, and the like. Some of these measurements may have diagnostic value and / or may form the basis for treatment decisions. [0005] The technique used to assess the extent to which the ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00
CPCA61B6/507A61M25/0067A61M2025/0002A61B5/02158A61B5/0215A61M2025/0183A61M2025/0037A61M2025/0034A61B5/01A61M25/0029A61B5/02154A61M25/007A61B5/02007A61B5/145A61B5/02014A61B5/0225A61M1/36A61B5/0261A61B5/14552A61B5/02055A61B5/0002A61B5/6851A61B5/742A61M5/007A61B5/0022A61B5/02028A61B5/0017A61B5/6853A61B5/6862A61B2562/12A61M2025/091A61M25/09
Inventor D·R·蒙斯特伦A·R·拉蒂卡R·F·威尔森E·R·米勒J·K·帕克
Owner ACIST MEDICAL SYST
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