US7172610B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotational atherectomy system with stationary cutting elements
Assignee: Covidien LP
•
Filing: 2003-10-17
•
Granted: 2007-02-06
•
Expires: 2023-10-17
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 21:00
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: 59
Claim 1
Independent Claim
70 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, the rotatable tip comprising a radially inwardly extending annular recess; and the tubular body comprising a plurality of radially inwardly extending retaining members for rotatably engaging the annular recess.
Claim 2
Dependent Claim
70 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, the rotatable tip comprising a radially inwardly extending annular recess; and the tubular body comprising a plurality of radially inwardly extending retaining members for rotatably engaging the annular recess.
Claim 3
Dependent Claim
135 words
A rotational medical device comprising an elongate flexible tubular body having a proximal end and a distal end, a manifold for connecting a vacuum source to said proximal end of said elongate flexible tubular body, an elongate element extending through said elongate flexible tubular body, a rotatable tip being connected to said elongate element at said distal end of said elongate flexible tubular body, said rotatable tip having a proximal end, a distal end and a rotational axis extending through said proximal end and said distal end; said rotatable tip comprising a plurality of cutting surfaces that provide a plurality of cutting profiles, the rotatable tip further being rotatable about said rotational axis relative to said elongate flexible tubular body, and a control being disposed at said proximal end of said elongate flexible tubular body.
Claim 4
Dependent Claim
135 words
A rotational medical device comprising an elongate flexible tubular body having a proximal end and a distal end, a manifold for connecting a vacuum source to said proximal end of said elongate flexible tubular body, an elongate element extending through said elongate flexible tubular body, a rotatable tip being connected to said elongate element at said distal end of said elongate flexible tubular body, said rotatable tip having a proximal end, a distal end and a rotational axis extending through said proximal end and said distal end; said rotatable tip comprising a plurality of cutting surfaces that provide a plurality of cutting profiles, the rotatable tip further being rotatable about said rotational axis relative to said elongate flexible tubular body, and a control being disposed at said proximal end of said elongate flexible tubular body.
Claim 5
Dependent Claim
16 words
The device of claim 2 , further comprising a guidewire lumen extending through said elongate element.
Claim 6
Dependent Claim
16 words
The device of claim 3 , wherein said guidewire lumen also extends through said rotatable tip.
Claim 7
Dependent Claim
36 words
The device of claim 2 , further comprising an indicator that is in electrical communication with said control, said indicator being adapted to indicate resistance to rotation of either said elongate element or said rotatable tip.
Claim 8
Dependent Claim
36 words
The device of claim 2 , wherein said control is mounted on a handle that is sized and configured for single hand operation of said rotatable tip and application of said vacuum source through said device.
Claim 9
Dependent Claim
25 words
The device of claim 2 , further comprising an axially extending annular space being defined between said elongated flexible tubular body and said elongate element.
Claim 10
Dependent Claim
19 words
The device of claim 7 , wherein said annular space defines at least a portion of an aspiration lumen.
Claim 11
Dependent Claim
46 words
The device of claim 8 , wherein said elongated flexible tubular body has a first cross sectional area and said annular space has a second cross sectional area such that said second cross sectional area is at least about 35% of said first cross sectional area.
Claim 12
Dependent Claim
14 words
The device of claim 2 , wherein said rotatable tip comprises a helical thread.
Claim 13
Dependent Claim
28 words
The device of claim 10 , wherein said rotatable tip further comprises at least one radially outward extending cutter positioned on said proximal end of said rotatable tip.
Claim 14
Dependent Claim
120 words
A rotational medical device comprising an elongate flexible tubular body having a proximal end and a distal end, a housing being secured to said distal end of said elongate flexible tubular body, a manifold for connecting a vacuum source to said proximal end of said elongate flexible tubular body, an elongate element extending through said elongate flexible tubular body, a rotatable tip being connected to a distal end of said elongate element and being axially moveable relative to said housing, said rotatable tip having a proximal end, a distal end and a rotational axis extending through said proximal end and said distal end; and said rotatable tip being rotatable about said rotational axis relative to said elongate flexible tubular body.
Claim 15
Dependent Claim
120 words
A rotational medical device comprising an elongate flexible tubular body having a proximal end and a distal end, a housing being secured to said distal end of said elongate flexible tubular body, a manifold for connecting a vacuum source to said proximal end of said elongate flexible tubular body, an elongate element extending through said elongate flexible tubular body, a rotatable tip being connected to a distal end of said elongate element and being axially moveable relative to said housing, said rotatable tip having a proximal end, a distal end and a rotational axis extending through said proximal end and said distal end; and said rotatable tip being rotatable about said rotational axis relative to said elongate flexible tubular body.
Claim 16
Dependent Claim
15 words
The device of claim 12 , wherein said rotatable tip is captured within said housing.
Claim 17
Dependent Claim
17 words
The device of claim 13 , wherein said housing comprises two pieces that enclose said rotatable tip.
Claim 18
Dependent Claim
16 words
The device of claim 12 , further comprising a guidewire lumen extending through said elongate element.
Claim 19
Dependent Claim
16 words
The device of claim 15 , wherein said guidewire lumen also extends through said rotatable tip.
Claim 20
Dependent Claim
53 words
The device of claim 12 , further comprising a control that is adapted to control rotation of said elongate element or said rotatable tip and an indicator that is in electrical communication with said control, said indicator being adapted to indicate resistance to rotation of either said elongate element or said rotatable tip.
Claim 21
Dependent Claim
36 words
The device of claim 12 , wherein a control is mounted on a handle that is sized and configured for single hand operation of said rotatable tip and application of said vacuum source through said device.
Claim 22
Dependent Claim
25 words
The device of claim 12 , further comprising an axially extending annular space being defined between said elongated flexible tubular body and said elongate element.
Claim 23
Dependent Claim
19 words
The device of claim 19 , wherein said annular space defines at least a portion of an aspiration lumen.
Claim 24
Dependent Claim
46 words
The device of claim 20 , wherein said elongated flexible tubular body has a first cross sectional area and said annular space has a second cross sectional area such that said second cross sectional area is at least about 35% of said first cross sectional area.
Claim 25
Dependent Claim
14 words
The device of claim 12 , wherein said rotatable tip comprises a helical thread.
Claim 26
Dependent Claim
28 words
The device of claim 22 , wherein said rotatable tip further comprises at least one radially outward extending cutter positioned on said proximal end of said rotatable tip.
Claim 27
Dependent Claim
15 words
The device of claim 12 , wherein the rotatable tip is at least partially serrated.
Claim 28
Dependent Claim
22 words
The device of claim 2 , wherein the plurality of cutting surfaces comprises a proximal cutting surface and a distal cutting surface.
Claim 29
Dependent Claim
19 words
The device of claim 25 , wherein the proximal cutting surface and the distal cutting surface comprise different diameters.
Claim 30
Dependent Claim
24 words
The device of claim 26 , wherein the diameter of the distal cutting surface is greater than the diameter of the proximal cutting surface.
Claim 31
Dependent Claim
93 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 having a rotatable cutter at a distal end thereof; a control on the proximal end of the body; and at least one stationary cutting member on the tubular body; wherein a portion of the rotatable cutter is configured to cooperate with the stationary cutting member to cut material drawn into the tubular body, said cooperation between the stationary cutting member and the rotatable being the primary cutting mechanism.
Claim 32
Dependent Claim
93 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 having a rotatable cutter at a distal end thereof; a control on the proximal end of the body; and at least one stationary cutting member on the tubular body; wherein a portion of the rotatable cutter is configured to cooperate with the stationary cutting member to cut material drawn into the tubular body, said cooperation between the stationary cutting member and the rotatable being the primary cutting mechanism.
Claim 33
Dependent Claim
17 words
The rotational medical device of claim 28 , comprising two stationary cutting members on the tubular body.
Claim 34
Dependent Claim
21 words
The rotational medical device of claim 28 , wherein the rotatable cutter comprises a rotatable tip connected to the rotatable element.
Claim 35
Dependent Claim
21 words
The rotational medical device of claim 28 , wherein the rotatable cutter is at least partially recessed within the tubular body.
Claim 36
Dependent Claim
19 words
The rotational medical device of claim 28 , wherein the rotatable cutter is substantially recessed within the tubular body.
Claim 37
Dependent Claim
19 words
The rotational medical device of claim 28 , wherein the rotatable cutter is entirely recessed within the tubular body.
Claim 38
Dependent Claim
16 words
The rotational medical device of claim 28 , wherein the rotatable element comprises a torque tube.
Claim 39
Dependent Claim
18 words
The rotational medical device of claim 28 , wherein the torque tube comprises a layer of braided wire.
Claim 40
Dependent Claim
18 words
The rotational medical device of claim 28 , wherein the torque tube comprises a layer of coiled wire.
Claim 41
Dependent Claim
14 words
The rotational medical device of claim 36 , wherein the coiled wire comprises metal.
Claim 42
Dependent Claim
15 words
The rotational medical device of claim 36 , wherein the coiled wire comprises a polymer.
Claim 43
Dependent Claim
23 words
The rotational medical device of claim 28 , further comprising a central guidewire lumen extending throughout the length of the rotational medical device.
Claim 44
Dependent Claim
23 words
The rotational medical device of claim 28 , further comprising a monorail guidewire lumen extending throughout the length of the rotational medical device.
Claim 45
Dependent Claim
20 words
The rotational medical device of claim 30 , wherein the rotatable tip further comprises a radially inwardly extending annular recess.
Claim 46
Dependent Claim
92 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 and having a rotatable cutter at a distal end thereof; a housing at the distal end of the body; and at least one stationary cutting member; wherein a portion of the rotatable cutter is configured to cooperate with the stationary cutting member to cut material drawn into the tubular body, said cooperation between the rotatable cutter and the stationary cutting member being the primary mechanism for cutting.
Claim 47
Dependent Claim
92 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 and having a rotatable cutter at a distal end thereof; a housing at the distal end of the body; and at least one stationary cutting member; wherein a portion of the rotatable cutter is configured to cooperate with the stationary cutting member to cut material drawn into the tubular body, said cooperation between the rotatable cutter and the stationary cutting member being the primary mechanism for cutting.
Claim 48
Dependent Claim
23 words
The rotational medical device of claim 42 , wherein the housing is separately formed and secured to the distal end of the body.
Claim 49
Dependent Claim
21 words
The rotational medical device of claim 42 , wherein the rotatable cutter is at least partially recessed within the tubular body.
Claim 50
Dependent Claim
19 words
The rotational medical device of claim 42 , wherein the rotatable cutter is substantially recessed within the tubular body.
Claim 51
Dependent Claim
19 words
The rotational medical device of claim 42 , wherein the rotatable cutter is entirely recessed within the tubular body.
Claim 52
Dependent Claim
80 words
A rotational medical device, comprising: an elongate flexible tubular body, having a proximal end and a distal end; a rotatable element within the body; a control on the proximal end of the body; first means for cutting material drawn into the tubular body, the first means being on the tubular body; and second means for cutting material drawn into the tubular body, the second means being on the rotatable element and cooperating with the first means to cut the material.
Claim 53
Dependent Claim
80 words
A rotational medical device, comprising: an elongate flexible tubular body, having a proximal end and a distal end; a rotatable element within the body; a control on the proximal end of the body; first means for cutting material drawn into the tubular body, the first means being on the tubular body; and second means for cutting material drawn into the tubular body, the second means being on the rotatable element and cooperating with the first means to cut the material.
Claim 54
Dependent Claim
25 words
The rotational medical catheter of claim 47 , wherein the first means for cutting material drawn into the tubular body comprises a stationary cutting member.
Claim 55
Dependent Claim
27 words
The rotational medical catheter of claim 47 , wherein the first means for cutting material drawn into the tubular body comprises a lip of a cutter housing.
Claim 56
Dependent Claim
24 words
The rotational medical catheter of claim 47 , wherein the second means for cutting material drawn into the tubular body comprises a cutting edge.
Claim 57
Dependent Claim
28 words
The rotational medical catheter of claim 47 , wherein the second means for cutting material drawn into the tubular body comprises a cutting edge of a screw thread.
Claim 58
Dependent Claim
23 words
The rotational medical catheter of claim 47 , wherein the second means for cutting material drawn into the tubular body comprises a flange.
Claim 59
Dependent Claim
24 words
The rotational medical catheter of claim 47 , wherein the second means for cutting material drawn into the tubular body comprises a cutting flange.
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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) | 2010-02-05 | 2010-08-07 | 2011-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-02-05 | 2014-08-07 | 2015-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-02-05 | 2018-08-07 | 2019-02-06 | $7700.00 | Window Closed / Lapsed |