Patent US6623496B2 successfully refreshed from Google Patents.
US6623496B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atherectomy catheter with aligned imager
Assignee: Covidien LP
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Filing: 2001-08-14
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Granted: 2003-09-23
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Expires: 2021-08-14
Abstract
Abstract An atherectomy catheter is provided for excising and imaging material in a body lumen. In one embodiment, the catheter comprises a catheter body, a cutting blade, and an imaging device. The cutting blade is mounted on the catheter body and configured to move between a first position and a second position relative to an aperture or cutting window. When the cutting blade is in the second position, the blade substantially closes the aperture on the catheter body. The imaging device which is mounted on or otherwise coupled to the cutting blade is configured to be in an imaging position when the cutting blade substantially closes the aperture or cutter window. This allows the imaging device to survey material within the cutting zone of the atherectomy catheter. By allowing the imaging device to view materials within this cutting zone, material may be imaged and then removed from the body lumen without having to reposition the catheter between each step.
Inventors
- 👤 David W. Snow
- 👤 James R. Flom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:50
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320783; A61B17/32075; A61B2017/00017; A61B2017/00022; A61B17/00234; A61B2017/00292; A61B2017/00353; A61B2017/320791; A61B90/00; A61B90/36; A61B90/361; A61B2090/3614; A61B90/37; A61B2090/373; A61B2090/378; A61B2090/3782; A61B2090/3784
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
54 words
A method of removing material from a body lumen, the method comprising: positioning a catheter comprising a tissue removal assembly in a body lumen; rotating the tissue removal assembly; axially moving the tissue removal assembly in the catheter; and directing the tissue removal assembly radially out of a side-opening cutting window in the catheter.
Claim 2
Independent Claim
54 words
A method of removing material from a body lumen, the method comprising: positioning a catheter comprising a tissue removal assembly in a body lumen; rotating the tissue removal assembly; axially moving the tissue removal assembly in the catheter; and directing the tissue removal assembly radially out of a side-opening cutting window in the catheter.
Claim 3
Dependent Claim
34 words
The method of claim 1 wherein the catheter defines an outer diameter, wherein directing comprises moving the tissue removal assembly radially out of the side-opening cutting window beyond an outer diameter of the catheter.
Claim 4
Dependent Claim
24 words
The method of claim 1 wherein directing comprises moving at least part of the tissue removal assembly over a ramp disposed within the catheter.
Claim 5
Dependent Claim
27 words
The method of claim 1 further comprising imaging the body lumen with an imaging device disposed on at least one of the catheter and tissue removal assembly.
Claim 6
Dependent Claim
25 words
The method of claim 1 further comprising removing material from the body lumen with the rotating tissue removal assembly directed out of the cutting window.
Claim 7
Dependent Claim
13 words
The method of claim 5 wherein cutting comprises using a non-serrated cutting edge.
Claim 8
Dependent Claim
105 words
A medical kit comprising: a catheter having a catheter body that comprises a side-opening cutting window, an outer diameter, and a movable tissue removal assembly that can extend beyond the outer diameter of the catheter body; instructions for use in removing material from a body lumen comprising moving the tissue removal assembly between a first position in which the tissue removal assembly is disposed within the catheter body and a second position in which at least a portion of the tissue removal assembly is positioned beyond the outer diameter of the catheter body; and a package adapted to contain the catheter and istructions for use.
Claim 9
Dependent Claim
105 words
A medical kit comprising: a catheter having a catheter body that comprises a side-opening cutting window, an outer diameter, and a movable tissue removal assembly that can extend beyond the outer diameter of the catheter body; instructions for use in removing material from a body lumen comprising moving the tissue removal assembly between a first position in which the tissue removal assembly is disposed within the catheter body and a second position in which at least a portion of the tissue removal assembly is positioned beyond the outer diameter of the catheter body; and a package adapted to contain the catheter and istructions for use.
Claim 10
Dependent Claim
19 words
The kit of claim 7 wherein the tissue removal assembly comprises a cutting blade comprising a non-serrated cutting edge.
Claim 11
Dependent Claim
26 words
The kit of claim 7 wherein the catheter further comprises an imaging device disposed on at least one of the catheter body and tissue removal assembly.
Claim 12
Dependent Claim
15 words
The kit of claim 7 wherein the instructions further comprise rotating the tissue removal assembly.
Claim 13
Dependent Claim
31 words
The kit of claim 7 wherein the catheter further comprises a cam disposed in the catheter body that directs the tissue removal assembly from the first position to the second position.
Claim 14
Independent Claim
91 words
A method of removing tissue from a body lumen, the method comprising: positioning a catheter in the body lumen; placing a tissue removal assembly in a first position in which the tissue removal assembly is disposed within the catheter; and moving at least a portion of the tissue removal assembly over a cam in the catheter so as to move the tissue removal assembly to a second position in which the tissue removal assembly extends through a side-opening cutting window in the catheter and beyond an outer diameter of the catheter.
Claim 15
Independent Claim
91 words
A method of removing tissue from a body lumen, the method comprising: positioning a catheter in the body lumen; placing a tissue removal assembly in a first position in which the tissue removal assembly is disposed within the catheter; and moving at least a portion of the tissue removal assembly over a cam in the catheter so as to move the tissue removal assembly to a second position in which the tissue removal assembly extends through a side-opening cutting window in the catheter and beyond an outer diameter of the catheter.
Claim 16
Dependent Claim
21 words
The method of claim 12 further comprising imaging the body lumen when the tissue removal assembly is in the first position.
Claim 17
Dependent Claim
14 words
The method of claim 12 further comprising rotating the tissue removal assembly during moving.
Claim 18
Independent Claim
61 words
A method of removing material from a body lumen, the method comprising: positioning a catheter comprising a tissue removal assembly in a body lumen; rotating the tissue removal assembly; axially moving the tissue removal assembly in the catheter; and directing the tissue removal assembly radially out of a side-opening cutting window in the catheter, beyond an outer surface of the catheter.
Claim 19
Independent Claim
61 words
A method of removing material from a body lumen, the method comprising: positioning a catheter comprising a tissue removal assembly in a body lumen; rotating the tissue removal assembly; axially moving the tissue removal assembly in the catheter; and directing the tissue removal assembly radially out of a side-opening cutting window in the catheter, beyond an outer surface of the catheter.
Claim 20
Dependent Claim
28 words
The method of claim 15 wherein directing the tissue removal assembly comprises moving at least part of the tissue removal assembly over a ramp disposed within the catheter.
Claim 21
Dependent Claim
26 words
The method of claim 15 comprising imaging the body lumen with an imaging device disposed on at least one of the catheter and tissue removal assembly.
Claim 22
Dependent Claim
25 words
The method of claim 15 further comprising removing material from the body lumen with the rotating tissue removal assembly directed out of the cutting window.
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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) | 2006-09-22 | 2007-03-24 | 2007-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-09-22 | 2011-03-24 | 2011-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-09-22 | 2015-03-24 | 2015-09-23 | $7700.00 | Window Closed / Lapsed |