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Apparatus and method for treatment of in-stent restenosis

A restenosis, stenosis technology applied in the field of medical devices to achieve the effect of inhibiting injury, reducing tissue damage and avoiding electrical grounding

Inactive Publication Date: 2014-10-29
VESSIX VASCULAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, allergic reactions or cytotoxicity have been shown to be a serious problem for stents coated with anti-proliferative drugs

Method used

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  • Apparatus and method for treatment of in-stent restenosis
  • Apparatus and method for treatment of in-stent restenosis
  • Apparatus and method for treatment of in-stent restenosis

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Embodiment Construction

[0108] The present invention provides devices, systems and methods for treating and / or analyzing one or more luminal tissues adjacent to a lumen. Anatomical structures in which catheters are placed can be, for example, esophagus, oral cavity, nasal cavity, Eustachian tube and tympanic cavity, cerebral venous sinuses, arterial system, venous system, heart, larynx, trachea, bronchi, stomach, duodenum, ileum, colon , rectum, bladder, kidney, liver, ureter, ejaculatory duct, vas deferens, urethra, uterine cavity, vaginal cavity and cervical canal. The present invention will be particularly useful in characterizing and treating material along arteries to open the arterial lumen and increase blood flow, further including stenosis due to previous stent implantation. Remodeling may involve the application of electrosurgical energy, typically in the form of radiofrequency, laser, microwave, or ultrasonic energy potentials, to energy delivery surfaces such as electrodes, antennae, and o...

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Abstract

A catheter and catheter system can use energy tailored for remodeling and / or removal of target material proximate to a body lumen, often of stenotic material or tissue in the luminal wall of a blood vessel of a patient. An elongate flexible catheter body with a radially expandable structure may have a plurality of electrodes or other electrosurgical energy delivery surfaces to radially engage the luminal wall when the structure expands. Feedback using one or parameters of voltage, current, power, temperature, impedance magnitude, impedance phase angle, and frequency may be used to selectively control the delivery of energy.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 542,949 filed October 4, 2011 under 35 USC 119(e). The entire disclosure of this application is hereby incorporated by reference in its entirety for all purposes. [0003] This application is related to U.S. Patent Application 12 / 660,515, filed (approved) on February 26, 2010, entitled "Tuned RF Energy for Selective Treatment of Atheroma and Other Target Tissues"; filed on March 28, 2006, and entitled " U.S. Patent Application No. 11 / 392,231 (now U.S. Patent No. 7,742,795) for "Tuned RF Energy for Selective Treatment of Atheroma and Other Target Tissues and / or Structures", the entire contents of which are incorporated herein by reference. This application is related to U.S. Patent Application No. 10 / 938,138 (now U.S. Patent No. 7,291,146), entitled "Selectable Eccentric Remodeling and / or Ablation of Atherosclerotic Material," filed September 10, 200...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/06
CPCA61B18/1492A61B2018/00404A61B2018/00892A61B2018/1467A61B2018/00875A61B2018/124A61B2018/00791A61B2018/00827A61B2018/00779A61B2018/00267A61N5/00
Inventor P.马瑟M.马佐尔D.佩雷斯
Owner VESSIX VASCULAR
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