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Balloon catheter with fluid injection elements

一种球囊、第一流体的技术，应用在气球形导管、导管、手术器械的零部件等方向，能够解决非线性创伤、费时等问题

Inactive Publication Date: 2016-11-09
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to create a linear lesion of sufficient depth to interfere with the distorted electrical signal, however, an ablation device, such as a focal catheter, may have to track repeatedly with the linear lesion
This can be a time-consuming process, and user error can lead to non-linear trauma and ablation of non-target tissue

Method used

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  • Balloon catheter with fluid injection elements
  • Balloon catheter with fluid injection elements
  • Balloon catheter with fluid injection elements

Examples

Experimental program
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Embodiment Construction

[0023] Referring now to the drawings in which like reference designations refer to like elements, an embodiment of a medical system constructed in accordance with the principles of the invention is described in figure 1 are shown in , and are generally designated as "10". The system 10 generally includes a medical device 12 that may be coupled to a control unit 14 or operating console. Medical device 12, such as in figure 1 The cryoablation device shown in may generally include an elongate body 15 and one or more diagnostic or therapeutic elements 16 for energetic, therapeutic and / or investigative interactions between the medical device 12 and the treatment site. For example, the therapeutic element 16 may include an inner balloon 18 , an outer balloon 20 , and one or more splines 22 disposed between the inner balloon 18 and the outer balloon 20 . Therapeutic element 16 may, for example, deliver cryotherapy to tissue regions adjacent to the treatment region, including cardia...

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PUM

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Abstract

A system and method for creating radial-linear lesions in tissue. The system includes a cryoablation device having a first balloon, a second balloon disposed about the first balloon, and one or more splines disposed between the first balloon and second balloon, each spline defining a plurality of ports. The splines may be in communication with a coolant supply, and the first balloon may be in communication with a coolant supply or non-coolant inflation fluid supply. When the first balloon is in the uninflated configuration, the splines may have a substantially linear configuration. Each of the splines may be radially oriented about an elongate shaft and transitionable between the substantially linear configuration and an arcuate configuration when the first balloon is in the inflated configuration. Coolant expelled from the splines between the first and second balloons creates an ablation pattern on the outer surface of the second balloon.

Description

technical field [0001] The present invention relates to methods and systems for creating linear lesions in tissue. In particular, the present invention relates to cryoablation methods and systems for creating radial-linear lesions to treat atrial fibrillation originating in or near the pulmonary veins. Background technique [0002] Minimally invasive surgical techniques are known for performing medical procedures within the cardiovascular system, and many medical conditions can be treated using ablative techniques and devices. For example, cryoablation, or the removal of heat from body tissue to "stun" or kill tissue cells, is a technique that has proven effective in treating many types of cardiac arrhythmias. [0003] One such arrhythmia, atrial fibrillation, is a medical condition caused by the normal electrical activity within the heart. This abnormal activity can occur at regions of the heart including the sinoatrial (SA) node, the atrioventricular (AV) node, their vas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61B18/02
CPCA61B2018/0022A61B2018/00255A61B2018/00267A61B2018/00357A61B2018/00375A61B2018/0212A61B18/02A61B2018/00351A61B2018/0262
Inventor G·D·马林C·利克格
Owner MEDTRONIC INC
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