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Method and apparatus for monitoring total delivered dose of contrast media

A technology of contrast agent and dose, applied in the field of total cumulative delivery dose of contrast agent, which is often used before injection, can solve the problems that have not been widely used

Inactive Publication Date: 2016-06-08
INTERSECT PARTNERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Various devices have been proposed to measure and potentially limit the total delivered volume of contrast media during interventional procedures, but none have gained widespread adoption

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  • Method and apparatus for monitoring total delivered dose of contrast media
  • Method and apparatus for monitoring total delivered dose of contrast media
  • Method and apparatus for monitoring total delivered dose of contrast media

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Embodiment Construction

[0034] The present invention provides a dosimeter for real-time tracking and display of the total delivered dose of a preselected component in a fluid stream. The dosimeter can additionally track and display the total delivered volume of fluid, as the sum of preselected components and a carrier such as saline. In the following, the dosimeter of the present invention is first discussed in the context of infusing a fluid into a patient, in particular for monitoring the total delivered dose of a contrast agent such as a radiolucent facilitator. However, the dosimeters of the present invention may be used to monitor other fluids that will be apparent to those skilled in the art in view of the disclosure herein.

[0035] In various interventional procedures, the patient receives a flow of saline from the fluid flow line through the catheter to the treatment site. The saline flow rate may fluctuate over time. In addition, periodic bolus doses (aperiodic bolus of contrast agent) ca...

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Abstract

Disclosed are methods and devices for monitoring total delivered dose of an analyte of interest, such as an iodine containing contrast media used during intravascular procedures. The device includes a flow rate measuring capability, and an analyte concentration measuring capability. Total cumulative delivered dose of the analyte can be determined, without regard to the number of sources of analyte and variations in concentration of the analyte delivered over the course of an intravascular procedure.

Description

[0001] Cross References to Related Applications [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 61 / 869,006, filed August 22, 2013, the entire contents of which are incorporated herein by reference. [0003] The present invention relates to fluid flow monitoring, and more particularly to the real-time determination of the total cumulative delivered dose of contrast media such as to facilitate fluoroscopic imaging. Background technique [0004] In X-rayfluoroscopy, a radiopaque contrast agent increases the absorption of X-rays and creates positive contrast (ie, an opaque image or shadow where the radiopaque contrast agent is present). Radiopaque contrast agents may generally include any soluble or insoluble compound that increases X-ray absorption. Certain types of radiopaque contrast media may contain iodine. For example, the contrast agent may comprise one or more aqueous solutions of iodine-containing salts, such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/168A61J1/22A61M36/04
CPCA61M5/007A61M5/16804A61M5/16831
Inventor 安德鲁·H·克拉格杰勒德·冯·霍夫曼
Owner INTERSECT PARTNERS