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Catheter system and method for fine navigation in a vascular system

A technology of vascular system and catheter, which is applied in the field of catheter system, and can solve problems such as injecting contrast agents

Inactive Publication Date: 2007-02-28
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, monitored navigation of the lead requires X-ray fluoroscopy and possible injection of contrast agent, including the associated load on the patient

Method used

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  • Catheter system and method for fine navigation in a vascular system
  • Catheter system and method for fine navigation in a vascular system
  • Catheter system and method for fine navigation in a vascular system

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Embodiment Construction

[0023] Figure 1 shows the tip of the invented catheter system in a blood vessel 7 with a stenosis 6 due to deposits on the inner vessel wall. The catheter system comprises a first catheter element 1 (hereinafter simply referred to as "catheter") which has a longitudinally running channel inside, through which a second catheter element in the form of a guide wire 2 is guided. The guide wire 2 can be moved relative to the outer catheter 1 in the longitudinal direction as desired.

[0024] Furthermore, the outer catheter 1 as well as the guide wire 2 carry active positioners 4 or 5 respectively on their tips in each case. This can be, for example, a magnetic field probe of a magnetic tracking system. The spatial position of the catheter element relative to the external coordinate system can be determined with relatively good accuracy by means of the positioners 4 , 5 . Typically, this current spatial position is displayed on a pre-operatively generated 3-dimensional vessel map ...

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PUM

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Abstract

The invention relates to a catheter system comprising a first, outer catheter (1) and a second catheter element contained in it, which can particularly be a guide wire (2). A respective active localizer (4, 5) is placed on the first and on the second catheter element (1, 2), for example sensors of a magnetic tracking system. The first catheter element (1) preferably has a fixing device (3), by means of which it can be fixed relative to the vascular system (7). If the guide wire (2) is, for example, to be navigated through a stenosis (6), the position of its localizer (5) relative to the localizer (4) is measured on the catheter element at rest (1), so that its position relative to the vessel (7) is known. Since interference factors such as organ movement balance each other during the measurement of the relative position of the localizers (4, 5), the navigation can be carried out with very high accuracy.

Description

technical field [0001] The present invention relates to a catheter system comprising a first and a second catheter element coupled to each other, and a method of navigating using such a catheter system. Background technique [0002] A typical application of the catheter system is in the detection and treatment of stenosis (narrowing of blood vessels). The success of a medical intervention essentially depends on positioning and navigating the catheter system with greater precision relative to the stenosis. Usually, a preoperative image of the vascular system is used as a so-called "vascular map", on which the current position of the catheter system is displayed for the doctor in charge. Numerous methods have been developed for this purpose, by means of which the self-motion of the vascular system caused by the heartbeat and respiration can be largely compensated and make it possible to roughly navigate the catheter into the stenosis. [0003] However, subsequent fine naviga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61M25/01A61B5/06A61F2/958A61M25/04A61M25/09
CPCA61B5/06A61M25/0127A61M25/04A61M25/10A61M25/09
Inventor J·博尔格特S·克吕格尔H·蒂明格尔
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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