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Devices, systems and methods for a piloting tip bushing for rotational atherectomy

A technique of atheromatous plaque resection, applied in the direction of surgery, grinding scalpels, surgical cutting instruments, etc.

Active Publication Date: 2015-12-02
CARDIOVASCULAR SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with this device, the path and diameter of the treatment is limited to the smallest size lesion

Method used

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  • Devices, systems and methods for a piloting tip bushing for rotational atherectomy
  • Devices, systems and methods for a piloting tip bushing for rotational atherectomy
  • Devices, systems and methods for a piloting tip bushing for rotational atherectomy

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Embodiment Construction

[0025] While the invention is susceptible to various modifications and alternative forms, details thereof are shown by way of example in the drawings and described in detail herein. It should be understood, however, that the invention should not be limited to the particular forms described. On the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

[0026]Various embodiments of the present invention include a rotational atherectomy system as generally described in US 6,494,890, entitled "ECCENTRICROTATIONALATHERECTOMYDEVICE", incorporated by reference here. In addition, the disclosures of the following commonly owned patents or patent applications are hereby incorporated by reference in their entirety: U.S. Patent No. 6,295,712, entitled "ROTATIONALATHERECTOMYDEVICE"; U.S. Patent No. 6,132,444 to "ECCENTRIC DRIVE SHAFTFORATHERECTOMY DEVICEAND METHODFORMANUFACTURE"; entitled "Eccentric Dri...

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Abstract

A high-speed rotational atherectomy device for opening a stenosis in an artery having a given diameter, comprising: a guide wire; a flexible elongated, rotatable drive shaft advanceable over the guide wire, the drive shaft having a proximal end and a distal end; an abrading head; and a piloting member fixedly attached to the drive shaft and disposed distally of the abrading head. When the piloting member is advanced to a stenosis, the piloting member creates a piloting hole when the drive shaft at a sufficient rotational speed. The eccentric abrading head is then advanced through the piloting hole and distally across the stenotic lesion, thereby opening the stenotic lesion to a diameter larger than the nominal diameter of the eccentric enlarged diameter section.

Description

[0001] Cross References to Related Applications [0002] This application claims Application Serial No. 61 entitled "Devices, Systems and Methods for a Piloting Tip Bushing for Rotational Atherectomy," filed March 14, 2013 Priority of / 782,083. technical field [0003] The present invention relates to devices and methods for removing tissue from bodily passages (eg, removing atherosclerotic plaque from arteries) using high-speed rotational atherectomy devices. Background technique [0004] Various techniques and instruments have been developed for removing or repairing tissue in arteries and similar body passages. The usual goal of these techniques and instruments is to remove atherosclerotic plaque in a patient's arteries. Atherosclerosis is characterized by the accumulation of fatty deposits (atheromas) in the intimal layer (subendothelium) of a patient's blood vessels. Many times over time, the initially deposited relatively soft cholesterol-rich atherosclerotic mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/3207
CPCA61B17/320758A61B2017/22094A61B2017/320004A61B2017/320766
Inventor 尼古拉斯·伊莱凌约瑟夫·希金斯
Owner CARDIOVASCULAR SYST INC
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