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US6451036B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Rotational atherectomy system with stationary cutting elements

Assignee: Covidien LP
•
Filing: 2000-06-12
•
Granted: 2002-09-17
•
Expires: 2020-06-12
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Abstract

Abstract An elongate tubular body extends between a rotatable cutter and a control. The cutter is connected to the control with a rotatable element. A vacuum is applied through an annular passage defined between the tubular body and the rotatable element. The cutter has at least one radial projection which cooperates with at least one stationary element on the tubular body to cut material drawn into the tubular body. Material that has been processed by the cutter is aspirated through the tubular body for disposal.

Inventors

  • 👤 Harold A. Heitzmann
  • 👤 John S. Honeycutt
  • 👤 Paul Taylor

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 20:22
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B2017/00017; A61B2017/00022; A61B2017/00681; A61B2017/00685; A61B17/22; A61B2017/22051; A61B2017/22052; A61B2017/320004; A61B2017/320008; A61B90/00; A61B90/06; A61B2090/062; A61B2090/064; A61B2217/00; A61B2217/002; A61B2217/005

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 90 words
A rotational medical device comprising: an elongate flexible tubular body, having a proximal end and a distal end; a rotatable element extending through the body; a rotatable tip at the distal end of the body and connected to the rotatable element; a control on the proximal end of the body; at least one radially inwardly extending stationary cutting member on the tubular body; and at least one radially outwardly extending flange on the rotatable tip for cooperating with the stationary cutting member to cut material drawn into the tubular body.
Claim 2
Dependent Claim 90 words
A rotational medical device comprising: an elongate flexible tubular body, having a proximal end and a distal end; a rotatable element extending through the body; a rotatable tip at the distal end of the body and connected to the rotatable element; a control on the proximal end of the body; at least one radially inwardly extending stationary cutting member on the tubular body; and at least one radially outwardly extending flange on the rotatable tip for cooperating with the stationary cutting member to cut material drawn into the tubular body.
Claim 3
Dependent Claim 18 words
A rotational medical device as in claim 1 , comprising two radially outwardly extending flanges on the tip.
Claim 4
Dependent Claim 18 words
A rotational medical device as in claim 1 , comprising two stationary cutting members on the tubular body.
Claim 5
Dependent Claim 26 words
A rotational medical device as in claim 1 , further comprising an annular recess in the tubular body for rotatably receiving the radially outwardly extending flange.
Claim 6
Dependent Claim 28 words
A rotational medical device as in claim 1 , wherein the rotatable tip has a diameter within the range of from about 0.025 inches to about 0.092 inches.
Claim 7
Dependent Claim 29 words
A rotational medical device as in claim 1 , wherein the rotatable tip has an axial length within the range of from about 0.040 inches to about 0.120 inches.
Claim 8
Dependent Claim 29 words
A rotational medical device as in claim 1 , wherein the distal end of the rotatable tip is approximately axially aligned with the distal end of the tubular body.
Claim 9
Dependent Claim 26 words
A rotational medical device as in claim 1 , wherein the distal end of the rotatable tip extends beyond the distal end of the tubular body.
Claim 10
Dependent Claim 19 words
A rotational medical device as in claim 1 , wherein the rotatable tip is recessed within the tubular body.
Claim 11
Dependent Claim 17 words
A rotational medical device as in claim 1 , wherein the rotatable element comprises a torque tube.
Claim 12
Dependent Claim 19 words
A rotational medical device as in claim 1 , wherein the torque tube comprises a layer of braided wire.
Claim 13
Dependent Claim 23 words
A rotational medical device as in claim 1 , comprising a central guidewire lumen extending throughout the length of the rotational medical device.
Claim 14
Dependent Claim 21 words
A rotational medical device as in claim 3 , wherein the rotatable tip further comprises a radially inwardly extending annular recess.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2005-09-16 2006-03-18 2006-09-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2009-09-16 2010-03-18 2010-09-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2013-09-16 2014-03-18 2014-09-17 $7700.00 Window Closed / Lapsed

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