Check patentability & draft patents in minutes with Patsnap Eureka AI!

Rotary cutting unit with eccentric grinding head system

A rotary cutting device and eccentric technology, applied in the direction of grinding scalpels, surgical cutting instruments, medical science, etc., can solve problems such as uncontrollable and difficult

Active Publication Date: 2022-02-25
CARDIOVASCULAR SYST INC
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, Wulfman's sweep diameter is not caused by the rotational speed, and thus, cannot be controlled by other means than the shape of the guidewire
Difficulty also exists in positioning a shaped, undeformed guidewire without damaging the patient's vasculature

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotary cutting unit with eccentric grinding head system
  • Rotary cutting unit with eccentric grinding head system
  • Rotary cutting unit with eccentric grinding head system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] While the invention is susceptible to various modifications and alternative forms, its details are shown by way of example in the drawings and described in detail herein. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

[0041] figure 1One embodiment of a rotary cutting device according to the invention is shown. The device includes a handle portion 10, an elongated flexible drive shaft 20 having an eccentric abrading head system 27 including, but not limited to, a proximal eccentric enlarging abrading head 28 in the illustrated embodiment, a distal A laterally eccentric enlarged grinding head or grinding element 29, and an elongated catheter 13 extending distally from the handle portion 10. The drive shaft 20 is constructed of helical coil wire as ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention, in various embodiments, provides a rotary cutting device having a flexible, elongated, rotatable drive shaft with an eccentric abrading head system attached thereto. At least a portion of the eccentric enlarging abrading head in the system has a tissue removal surface - typically an abrasive surface. In some embodiments, the abrasive head can be at least partially hollow. Preferably, the eccentric enlarging abrading head has a center of mass radially spaced from the axis of rotation of the drive shaft to facilitate the co-operation of the eccentric abrading head system to open stenotic lesions to a diameter substantially greater than the outer resting diameter of the enlarging abrading head at high speed. diameter capacity. Accordingly, certain embodiments include systems with an unbalanced center of mass not only to facilitate a larger diameter of rotation, but also arranged in a manner by which a debris removal helical effect is created. Optionally, other embodiments may include systems having grinding heads with a balanced center of mass.

Description

[0001] Cross References to Related Applications [0002] This application is 333ion Serial No. 13 / 621,398 filed September 17, 2012, which is hereby incorporated by reference. [0003] inventor [0004] Matthew D. Cambronne, a citizen of Moundsview, Minnesota, USA [0005] Robert E. Kohler, citizen of Lake Elmont, Minnesota, USA technical field [0006] The present invention relates to devices and methods for removing tissue from body passages, such as removing atherosclerotic plaque from arteries, using high-speed rotary cutting devices. Background technique [0007] 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 (plaques) in the intimal layer (subendothelium) of a patient's blood vessels. Often over time, the i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/22A61D1/02
CPCA61B17/320758A61B2017/320004A61B2017/320766A61B2017/320775
Inventor 马修·D·康布罗纳罗伯特·E·科勒
Owner CARDIOVASCULAR SYST INC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com