Methods and apparatus employing ionizing radiation for treatment of cardiac arrhythmia

a technology of ionizing radiation and treatment method, which is applied in the field of treatment of cardiac arrhythmias, can solve the problems of deep along the entire lesion length, and patients suffering from repeated restenosis of the pulmonary vein often have a doubtful prognosis, so as to reduce the treatment time and minimize unnecessary radiation exposure

Inactive Publication Date: 2011-08-11
BONAN RAOUL +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables accurate and minimally invasive treatment of cardiac arrhythmias with reduced treatment time, avoidance of invasive surgeries, and potential prevention of pulmonary vein stenosis, offering a more effective and safer alternative to traditional ablation techniques.

Problems solved by technology

For example, forming continuous linear lesions without breaks or disruptions and of uniform depth along the entire lesion lengths are challenging at the very least for cardiologists and electrophysiologists.
Despite efforts to open the pulmonary vein and to place a stent in the vein to hold it open, patients suffering from repeated restenosis of the pulmonary vein often have a doubtful prognosis.

Method used

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  • Methods and apparatus employing ionizing radiation for treatment of cardiac arrhythmia
  • Methods and apparatus employing ionizing radiation for treatment of cardiac arrhythmia
  • Methods and apparatus employing ionizing radiation for treatment of cardiac arrhythmia

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Embodiment Construction

[0040]FIG. 1 is a generally diagrammatical view of the human heart, generally designated by the numeral 2. To better understand the present invention, it is helpful to have at least a basic introduction to the physiology of the heart and to the cardiac cycle, including what is known as the electrophysiology of the heart.

[0041]The human heart has four chambers, the right atrium 4 and right ventricle 6, which are connected together by a valve 8, and the left atrium 10, and left ventricle 12 which are also connected by a valve 14. The function of the atria is to receive blood from the veins and to store it for each heartbeat. Blood returning from the major organs of the body and muscles, which is depleted of oxygen, is delivered first to the right atrium. This blood is then delivered to the right ventricle, which pumps the oxygen depleted blood to the lungs where carbon dioxide is expelled and oxygen replenished. Re-oxygenated blood flows from the lungs, through right and left pairs of...

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Abstract

Method and apparatus are disclosed employing ionizing radiation. for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus may include a catheter in which the radiation source is advanced hydraulically after the catheter is in place within the heart. Various fixation devices are also disclosed for fixing the location of the catheter within the heart.

Description

[0001]This is a Divisional patent application of U.S. patent application Ser. No: 11 / 709,652 filed on Feb. 22, 2007, which claims the benefit of U.S. Provisional Patent Application Ser. No. 60 / 324,299, filed Sep. 24, 2001, and incorporates by reference aforesaid application.BACKGROUND OF THE INVENTION[0002]The present invention generally relates to the treatment of cardiac arrhythmias (a trial and ventricular) such as, but not limited to, “a trial fibrillation and / or to the treatment of vascular restenosis after the use of other ablation techniques. More specifically, the present invention is directed to unique apparatus and / or methods employing ionizing radiation for ablating cardiac issue to treat cardiac arrhythmias.[0003]The coordinated contraction of the various chambers of the human heart during a normal heartbeat is controlled by. a relatively complex electrical system. The electrical signal that initiates each heartbeat begins at an area in the right atrium commonly called t...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): A61N5/00A61M25/00A61M25/01A61M36/04A61N5/10
CPCA61B2017/003A61B2018/00363A61B2018/00559A61N5/1002A61M25/0147A61M2025/0034A61M2025/004A61B2018/00577
InventorBONAN, RAOULLARSEN, CHARLES E.TRIP, ROELOFSCHUMER, DOUGLAS B.GRIFFIS, III, JACK C.LEROHL, ANDREW L.
OwnerBONAN RAOUL