Catheter, apparatus and method for therapeutic embolization

A therapeutic, catheter-based technology that can be used in applications, surgical navigation systems, medical science, etc., and can solve problems such as not giving

Inactive Publication Date: 2007-03-14
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Abstract
  • Description
  • Claims
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  • Catheter, apparatus and method for therapeutic embolization
  • Catheter, apparatus and method for therapeutic embolization

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Embodiment Construction

[0030] In the schematic diagram of FIG. 1 it can be seen that during the therapeutic embolization of an aneurysm 1 in a vessel wall 4 a catheter 5 is inserted into the aneurysm. A suitable occluding material 2, such as a curable polymer, may then be injected through the catheter 5 into the aneurysm 1 in order to occlude said aneurysm and terminate its negative impact on blood flow. Plugging material 2 is supplied to conduit 5 by means of controllable pump means 6 .

[0031] During the injection of the plugging material 2 , a problem arises that the catheter 5 tends to stretch and thus emerge from the aneurysm 1 . If this happens, the occluding material 2 is injected into the blood stream, which entails the risk of blocking the blood vessel, damaging it or causing a fatal embolism (stroke). Extra care is therefore required to ensure that the catheter 5 remains in the aneurysm 1 when embolization is performed.

[0032] The use of the device shown in the accompanying drawings p...

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Abstract

The invention relates to devices and methods and catheters for therapeutic embolization of aneurysms (1). The plugging material (2) is injected through a catheter (5) inserted into the aneurysm (1). During infusion, the spatial position of the active localizer (3), such as a magnetic field sensor mounted on the tip of the catheter (5), is observed by localization means (8, 9). If it is detected by the monitoring unit (7) that the tip of the catheter emerges from the aneurysm (1), said monitoring unit stops further supply of occluding material to the catheter (5).

Description

technical field [0001] The present invention relates to catheters, devices and methods for therapeutic embolization of aneurysms using catheters. Background technique [0002] In therapeutic embolization of aneurysms, the negative effects of aneurysms on blood flow are inhibited by injecting suitable occlusive materials to eliminate cavities caused by disturbances in the vasculature. Many variants of therapeutic embolization are known from the literature. For example, US 6024754 describes the combination of a coil first inserted into the aneurysm with a curable polymer subsequently introduced. An x-ray opaque marker is mounted on the tip of the associated catheter so that its position can be determined on the x-ray image. Furthermore, US 6024754 states that during injection of occluding material into an aneurysm, it is known to require care not to protrude the tip of the catheter from the aneurysm and discharge the occluding material into the blood stream or block the vess...

Claims

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Application Information

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IPC IPC(8): A61B17/12A61B19/00
CPCA61B17/12186A61B2019/5251A61B19/5244A61B17/12195A61B17/12113A61B17/12022A61B2017/1205A61B34/20A61B2034/2051
Inventor J·博尔格特D·M·巴比克
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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