Patent US4986807A successfully refreshed from Google Patents.
US4986807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atherectomy cutter with radially projecting blade
Assignee: Boston Scientific Scimed Inc
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Filing: 1989-01-23
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Granted: 1991-01-22
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Expires: 2009-01-23
Abstract
Abstract An atherectomy device for cutting obstructive tissue from the lumen of a body vessel comprises a rotatable cutter having a blade. A hollow, generally cylindrical housing defines a central longitudinal axis and has a side opening. The cutter is mounted in the housing for rotation about an axis that is substantially parallel to the longitudinal axis of the housing. During rotation of the cutter, the blade cyclically projects from the side opening to cut obstructive tissue from the lumen.
Inventors
- 👤 Andrew F. Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:18
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320783; A61B17/22; A61B2017/22038; A61B2017/320791
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
61 words
A device for removing obstructive tissue from a body vessel which comprises: a rotatable cutter having a blade; and a hollow cylindrical housing defining a cylindrical periphery, said housing being formed with a side opening, said housing supporting said cutter therein to cyclically project said blade from within said housing through said opening beyond said periphery during rotation of said cutter.
Claim 2
Independent Claim
61 words
A device for removing obstructive tissue from a body vessel which comprises: a rotatable cutter having a blade; and a hollow cylindrical housing defining a cylindrical periphery, said housing being formed with a side opening, said housing supporting said cutter therein to cyclically project said blade from within said housing through said opening beyond said periphery during rotation of said cutter.
Claim 3
Dependent Claim
36 words
A device for removing obstructive tissue from a body vessel as recited in claim 1 further comprising a guide wire for supporting said cutter, said cutter being formed with a passageway for receiving said guide wire.
Claim 4
Dependent Claim
40 words
A device for removing obstructive tissue from a body vessel as recited in claim 2 further comprising a torque tube fixedly attached to said cutter for rotating said cutter, said torque tube being positioned for fluid communication with said passageway.
Claim 5
Dependent Claim
32 words
A device for removing obstructive tissue from a body vessel as recited in claim 3 further comprising a fixedly attached to said housing and positioned in surrounding relationship to said torque tube.
Claim 6
Dependent Claim
41 words
A device for removing obstructive tissue from a body vessel as recited in claim 4 further comprising suction means operatively connected with said torque tube for removing cuttings of obstructive tissue from said vessel through said passageway and said torque tube.
Claim 7
Independent Claim
80 words
An apparatus for removing obstructive tissue from a body vessel which comprises: a housing having a periphery and defining a central longitudinal axis and having a side opening radially oriented relative to said longitudinal axis; and a cutter having a blade, said cutter rotatably mounted in said housing for rotation about an axis substantially parallel to and spaced from said central longitudinal axis to cyclically project said blade from said side opening beyond said periphery to cut the obstructive tissue.
Claim 8
Independent Claim
80 words
An apparatus for removing obstructive tissue from a body vessel which comprises: a housing having a periphery and defining a central longitudinal axis and having a side opening radially oriented relative to said longitudinal axis; and a cutter having a blade, said cutter rotatably mounted in said housing for rotation about an axis substantially parallel to and spaced from said central longitudinal axis to cyclically project said blade from said side opening beyond said periphery to cut the obstructive tissue.
Claim 9
Dependent Claim
36 words
A device for removing obstructive tissue from a body vessel as recited in claim 6 further comprising a guide wire for supporting said cutter, said cutter being formed with a passageway for receiving said guide wire.
Claim 10
Dependent Claim
40 words
A device for removing obstructive tissue from a body vessel as recited in claim 7 further comprising a torque tube fixedly attached to said cutter for rotating said cutter, said torque tube being positioned for fluid communication with said passageway.
Claim 11
Dependent Claim
33 words
A device for removing obstructive tissue from a body vessel as recited in claim 8 further comprising a sheath fixedly attached to said housing and positioned in surrounding relationship to said torque tube.
Claim 12
Dependent Claim
41 words
A device for removing obstructive tissue from a body vessel as recited in claim 9 further comprising suction means operatively connected with said torque tube for removing cuttings of obstructive tissue from said vessel through said passageway and said torque tube.
Claim 13
Independent Claim
105 words
A method for removing obstructive tissue from the lumen of a body vessel which comprises the steps of: Inserting a guide wire into the lumen of a body vessel across the obstructive tissue; Advancing a cutting apparatus over said guide wire into contact with the obstructive tissue, said apparatus comprising a rotatable cutter having a blade, and a hollow cylindrical housing defining a periphery and having a side opening therethrough, said housing supporting said cutter therein to cyclically project said blade from within said housing through said opening beyond said periphery during rotation of said cutter to cut said obstructive tissue; and Rotating said cutter.
Claim 14
Independent Claim
105 words
A method for removing obstructive tissue from the lumen of a body vessel which comprises the steps of: Inserting a guide wire into the lumen of a body vessel across the obstructive tissue; Advancing a cutting apparatus over said guide wire into contact with the obstructive tissue, said apparatus comprising a rotatable cutter having a blade, and a hollow cylindrical housing defining a periphery and having a side opening therethrough, said housing supporting said cutter therein to cyclically project said blade from within said housing through said opening beyond said periphery during rotation of said cutter to cut said obstructive tissue; and Rotating said cutter.
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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) | 1994-01-21 | 1994-07-23 | 1995-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-21 | 1998-07-23 | 1999-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-21 | 2002-07-23 | 2003-01-22 | $7700.00 | Window Closed / Lapsed |