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Method and apparatus for treatment of intracranial hemorrhages

a technology of intracranial hemorrhage and treatment method, which is applied in the field of intracranial hemorrhage treatment using ultrasound catheter, can solve the problems that the lytic treatment has not been widely adopted

Inactive Publication Date: 2013-08-15
EKOS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes an ultrasound catheter for treatment of blood clots in the brain caused by intracranial hemorrhage. The catheter has a distal portion with a fluid delivery lumen and a fluid evacuation lumen, allowing a fluid to be delivered and evacuated simultaneously. The catheter can also have a light source and pressure sensor to monitor the treatment process. A slidable sealing surface and temperature sensor can be included for better manipulation and monitoring of the catheter. The method involves positioning the catheter in the blood clot and activating the ultrasound assembly to deliver the lytic drug and evacuate fluid. The technical effects of this patent are improved blood clot treatment using an ultrasound catheter with advanced features for improved manipulation and monitoring.

Problems solved by technology

However, such lytic treatment has not been widely adopted because it is generally considered too slow to provide sufficient clinical benefits.

Method used

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  • Method and apparatus for treatment of intracranial hemorrhages
  • Method and apparatus for treatment of intracranial hemorrhages
  • Method and apparatus for treatment of intracranial hemorrhages

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Embodiment Construction

[0040]As set forth above, methods and apparatuses have been developed that allow an intracranial hemorrhage and / or a subarachnoid hemorrhage to be treated using ultrasonic energy in conjunction with a therapeutic compound and / or light treatment. As used herein, the term “intracranial hemorrhage” encompasses both intracerebral hemorrhage and intraventricular hemorrhage. Although some embodiments may be disclosed with reference to intracerebral hemorrhage or intraventricular hemorrhage, the embodiments can generally be used to treat both types of intracranial hemorrhage. Disclosed herein are several exemplary embodiments of ultrasonic catheters that can be used to enhance the efficacy of therapeutic compounds at a treatment site within a patient's body. Also disclosed are exemplary methods for using such catheters. For example, as discussed in greater detail below, the ultrasonic catheters disclosed herein can be used to deliver a therapeutic compound to a blood clot in the brain, all...

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Abstract

An ultrasound catheter with fluid delivery lumens, fluid evacuation lumens and a light source is used for the treatment of intracerebral hemorrhages. After the catheter is inserted into a blood clot in the brain, a lytic drug can be delivered to the blood clot via the fluid delivery lumens while applying ultrasonic energy to the treatment site. As the blood clot is dissolved, the liquefied blood clot can be removed by evacuation through the fluid evacuation lumens.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a continuation of U.S. patent application Ser. No. 12 / 143,470, filed Jun. 20, 2009, which claims the priority benefit of U.S. Provisional Application No. 60 / 945,846, filed Jun. 22, 2007, and U.S. Provisional Application No. 61 / 032,741, filed Feb. 29, 2008, the entire contents of these applications are hereby incorporated by reference herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates generally to the treatment of intracranial hemorrhages, and more specifically, to the treatment of intracranial hemorrhages using an ultrasound catheter.[0004]2. Background of the Invention[0005]Up to 70,000 Americans each year suffer a hemorrhagic stroke. Most of these occur in the basal ganglia, and a third of those include bleeding into the ventricles. Half of these victims will die within months, and a quarter of the survivors will have a second stroke within five years.[0006]Bleeding in the brain ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M25/00
CPCA61B17/2202A61M25/00A61B2017/00084A61B2017/00561A61B2017/12004A61B2019/464A61B2019/5206A61B2019/521A61B2217/005A61B2217/007A61M1/0084A61M25/003A61M25/0032A61M25/007A61M2025/0002A61M2205/058A61B18/24A61B2090/064A61B2090/309A61B2090/306A61M1/85
Inventor WILCOX, ROBERT L.HAAS, RONALD L.
Owner EKOS CORP
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