Low-temperature ablation catheter, low-temperature ablation operating device and low-temperature ablation device

An ablation catheter and low-temperature technology, which is applied in the field of low-temperature ablation operation device, low-temperature ablation equipment, and low-temperature ablation catheter, to achieve the effects of shortening recovery time, avoiding adverse effects, and relieving pressure

Pending Publication Date: 2018-07-24
PIEDMONT MEDSYST ZHUHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the low-temperature ablation catheter in the prior art will generate excessive heat exchange with the blood in the atrium when performing low-temperature ablation on myocardial tissue, and then provide a device that can reduce the heat exchange with the blood low temperature ablation catheter with heat exchange between

Method used

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  • Low-temperature ablation catheter, low-temperature ablation operating device and low-temperature ablation device
  • Low-temperature ablation catheter, low-temperature ablation operating device and low-temperature ablation device
  • Low-temperature ablation catheter, low-temperature ablation operating device and low-temperature ablation device

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Embodiment 1

[0058] like Figure 2 to Figure 5 Shown is embodiment 1 of the present invention. This embodiment provides a low-temperature ablation catheter, which is used to ablate part of myocardial tissue in the atrium, and is mostly used to treat atrial fibrillation.

[0059] The low temperature ablation catheter provided in this embodiment includes a first balloon body, a core tube and a thermal insulation part, the first balloon body is installed at the front end of the core tube, and the first balloon body has a The front end area where the myocardial tissue fits and the rear end area exposed to the blood; the core tube has a first circuit inside, and the first circuit is suitable for filling or flowing out the first fluid at low temperature into the first capsule; The heat insulation part is at least partially attached to the rear end region, and is suitable for reducing the heat exchange efficiency between the first fluid and the blood in the atrium.

[0060] Before the operation...

Embodiment 2

[0074] This embodiment provides a low-temperature ablation device, comprising: a handle connected to the low-temperature ablation catheter in Embodiment 1; 1 slide. During the operation, the handle is used to operate the low-temperature ablation catheter along the guide wire pre-extended into the atrium, from the opening on the body surface along the blood vessel and into the vicinity of the target tissue. Then, the actuator is used to push the front end of the core tube 3 out of the cannula 1, and the first balloon body 2 is filled with low-temperature fluid, and the first balloon body 2 is attached to the target tissue to start ablation.

[0075] Since this embodiment includes the low-temperature ablation catheter in embodiment 1, it also has the corresponding advantages of the low-temperature ablation catheter in embodiment 1.

Embodiment 3

[0077] This embodiment provides a low-temperature ablation device. When the device itself has operating devices such as handles and actuators, it only needs to be connected with the low-temperature ablation catheter in Embodiment 1 to perform low-temperature ablation smoothly; when the device itself does not When there are operating devices such as a real handle and an actuator, it needs to be connected to the low-temperature ablation operating device provided in Embodiment 2 to perform low-temperature ablation.

[0078] Since this embodiment includes the low-temperature ablation catheter in embodiment 1 or the low-temperature ablation operation device in embodiment 2, it also has the advantages of the low-temperature ablation catheter in embodiment 1 or the low-temperature ablation operation device in embodiment 2. corresponding advantages.

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Abstract

The invention discloses a low-temperature ablation catheter, a low-temperature ablation operating device and a low-temperature ablation device, and belongs to the technical field of the low-temperature ablation. The low-temperature ablation catheter comprises a first capsule, a core pipe and a thermal-insulating part. The first capsule is installed at the front end of the core pipe. The first capsule is provided with a front end area suitable for attaching a cardiac muscle tissue in a low-temperature ablation process and a rear end area exposed in blood. The core pipe is internally provided with a first loop. The first loop is suitable for charging low-temperature first fluid into the first capsule or flowing out the low-temperature first fluid. The thermal-insulating part is at least partially attached with the rear end area, and is suitable for reducing the heat exchange efficiency between the first fluid and the blood in atriums. The provided technical scheme is capable of effectively reducing the heat exchange between the low-temperature ablation catheter and the blood in the low-temperature ablation process.

Description

technical field [0001] The invention relates to the field of ablation technology, in particular to a low-temperature ablation catheter, a low-temperature ablation operating device, and a low-temperature ablation device. Background technique [0002] Atrial fibrillation is a medical condition in which the heart's electrical activity is abnormal. The current medical community tends to believe that the electrical signals that cause atrial fibrillation originate in the muscular cuffs outside the four pulmonary veins (two left and two right). Therefore, one way to treat atrial fibrillation is to isolate the electrical signal exchange between the muscle sleeve outside the pulmonary vein and the atrial tissue, which is usually achieved by ablation of part of the myocardial tissue. Catheter ablation is currently the most commonly used method to ablate myocardial tissue. Low-temperature ablation is a new type of catheter ablation in recent years. It has the advantages of less pain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/02
CPCA61B18/02A61B2018/0212A61B2018/0293A61B2018/00351A61B2018/00023A61B2018/00577A61B2018/00375A61B2018/00101A61B2018/0022A61B2018/00041A61B2018/00255A61B2018/00261A61B2018/025
Inventor 肖家华阿兰·德·拉·拉马凯瑞·国彦·波田
Owner PIEDMONT MEDSYST ZHUHAI CO LTD
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