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Ablation device

A device and marking technology, applied in the fields of medical science, surgery, diagnosis, etc., can solve the problems such as the inability of the heart to cauterize the heart and the inability to transmit high-frequency current effectively, and achieve the effect of reliable cautery.

Inactive Publication Date: 2017-05-31
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a high-frequency current is supplied to the electrode in a state where the electrode is not in contact with the heart surface, there is a problem that the high-frequency current cannot be effectively transmitted to the heart and the heart cannot be cauterized reliably

Method used

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Examples

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Embodiment Construction

[0037] Next, an ablation device 1 according to an embodiment of the present invention will be described with reference to the drawings.

[0038] Such as figure 1 As shown, the ablation device 1 of this embodiment has: an elongated insertion part 2; a front end part 3, which is connected to the front end of the insertion part 2, and is used to cauterize the tissue; a handle 4, which is connected to the base of the insertion part 2. terminal connection; and a power supply unit 5 that supplies a high-frequency current for cauterization to the front end portion 3 .

[0039] The insertion part 2 and the distal end part 3 are flexible enough to bend along the shape of the surrounding tissue, and can be inserted into the pericardial cavity percutaneously.

[0040] figure 2 (a), (b) have shown the structure of the front-end|tip part 3. FIG. Such as figure 2 As shown in (a) and (b), the front end portion 3 has a flat burning surface 6 formed on a part of the circumferential direc...

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PUM

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Abstract

Provided is an ablation device (1) equipped with a narrow insert part (2) which can be inserted into a body, a tip part (3) which is arranged at the tip of the insert part (2) and has a narrow cauterizing surface (6) formed in the direction of the length of the tip part (3) on a portion of the tip part (3) as observed in the direction of the periphery of the tip part (3) and capable of emitting an energy toward a biological tissue, and a marking part (8) which is arranged at the tip part (3) approximately in parallel with the cauterizing surface (6) and is impermeable to X-ray radiation, wherein the marking part (8) has such a three-dimensional shape that images of the marking part (8) projected from different sides in the direction of the diameter of the tip part (3) are different from each other.

Description

technical field [0001] The present invention relates to ablation devices. Background technique [0002] Conventionally, in the treatment of arrhythmia, an ablation device that linearly cauterizes the surface of the heart has been used (see, for example, Patent Document 1 and Non-Patent Document 1.). In the cells of the atrium, the abnormal electrical signals were generated mainly near the pulmonary veins in the left atrium. Therefore, by performing linear cautery on the left atrium so as to surround the base of the pulmonary vein, abnormal electrical signals can be prevented from being transmitted from the pulmonary vein to the surroundings. [0003] On the other hand, a method of percutaneously inserting a treatment instrument into the pericardium through the pericardium from the xiphoid process is known as a low-invasive cardiac surgery method. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese PCT Publication No. 2003-527188 ...

Claims

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Application Information

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IPC IPC(8): A61B18/12
CPCA61B18/082A61B18/1492A61B2018/00375A61B2018/00595A61B2018/0212A61B18/12A61B90/39A61B2090/3966A61B18/1206A61B2018/00577A61B2018/00964A61B2018/00982
Inventor 杉本尚也
Owner OLYMPUS CORP
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