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Device and method for determining a local property of a biological tissue

A technology of local characteristics, biological tissue, applied in measurement devices, applications, electrotherapy, etc.

Pending Publication Date: 2019-06-21
瓦斯科医疗有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, fluorescence intensity can only be measured in a time-delayed manner

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  • Device and method for determining a local property of a biological tissue
  • Device and method for determining a local property of a biological tissue
  • Device and method for determining a local property of a biological tissue

Examples

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Embodiment Construction

[0070] In the following, the structure and mode of operation of the catheter according to the invention with a rod or the device according to the invention will be described on the basis of an ablation catheter for intracardiac ablation. However, the present invention is not limited thereto. The structure and mode of operation of the catheter according to the invention or the device according to the invention can also be applied analogously to catheters / devices for other treatments or other tissues, where the determination of local tissue properties such as local thickness or local lesion depth is of interest.

[0071] figure 1 An exemplary embodiment of a catheter of the invention is shown having a handle (handgrip) 1, at least one electrical and / or optical signal wire 2 (for transmission from and / or to at least one catheter-mounted signal of a sensor or sensor element and / or at least one electrode), a flush line 3 , a control mechanism 4 and an inner shaft 20 . The inner r...

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Abstract

The invention relates to an ablation catheter for determining a local property of a biological tissue (50), said catheter having a flexible shaft (20), a data processing device (40), and an NMR sensor(30) arranged at the distal end of the shaft (20) and connected to the data processing device (40), wherein the NMR sensor (30) comprises a first sensor element (34) for generating a static magneticfield and a second sensor element (35) for generating a magnetic alternating field, the distal end of the shaft (20) can be arranged adjacently to the point of the tissue (50) to be measured, and thedata processing device (40) is designed to determine the local property of the tissue (50) at this point on the basis of a signal of the NMR sensor (30) transmitted to the data processing device (40).The invention also relates to a corresponding method.

Description

technical field [0001] In the case of biological tissue ablation, e.g. with the aim of optimizing intracardiac impulse conduction (electrophysiology), nerve destruction (renal denervation) or tumor therapy, knowledge of tissue properties such as lesion depth or local thickness of the treated tissue is useful for the assessment of interventional efficacy is quite meaningful. Accordingly, the present invention is directed to devices and methods for determining local properties of biological tissue. Background technique [0002] Intracardiac ablation is a known method for the minimally invasive treatment of idiopathic, paroxysmal, persistent or chronic arrhythmias, especially supraventricular arrhythmias . Here, in the case of atrial fibrillation or other arrhythmias such as atrial flutter, a catheter with electrodes is placed through the vein into the right atrium of the heart and placed across the heart septum in the left atrium. Subsequently, the region of musculature in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12A61B18/14
CPCA61N1/00G01R33/287G01R33/3802G01R33/3808G01R33/383A61B18/1492G01R33/285A61B2018/00577A61B5/055A61M2025/0166A61M25/0127
Inventor H.埃伯特J.鲁姆普
Owner 瓦斯科医疗有限责任公司