US5092873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon configuration for atherectomy catheter
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1990-02-28
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Granted: 1992-03-03
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Expires: 2010-02-28
Abstract
Abstract A vascular catheter includes a flexible catheter body having proximal and distal ends and an elongate housing secured to the distal end of the catheter body. An interactional device is disposed on one side of the housing, and at least two spaced-apart inflatable chambers are located on the other side of the housing generally at its proximal and distal ends, respectively. The inflatable chambers may be expanded simutaneously or separately, and the spaced-apart positioning of the chambers provides for stable positioning of the housing during atherectomy procedures imaging procedures, and the like.
Inventors
- 👤 John B. Simpson
- 👤 Richard L. Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:11
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320783; B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C65/48; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/13; B29C66/131; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/61; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81455; A61B17/22; A61B2017/22051; A61B2017/22052; A61B2017/22054; A61B2017/22072; A61B2017/22074; A61B2017/22075; A61M; A61M25/00; A61M25/10; A61M25/1002; A61M25/1011; B29C66/20; B29C66/24; B29C66/242; B29C66/2422; B29C66/24221; B29C66/70; B29C66/71; B29L; B29L2031/00; B29L2031/753; B29L2031/7542
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
91 words
A catheter comprising: a flexible catheter body having proximal and distal ends; an elongate housing having proximal and distal ends, said housing being secured at its proximal end to the distal end of the catheter body and having an aperture on one side thereof; interactional means disposed within the housing for removing stenotic material which penetrates the aperture; at least two spaced-apart inflatable chambers located generally at the proximal and distal ends of the housing on a side opposite to that of the aperture and means for inflating the inflatable chambers.
Claim 2
Dependent Claim
91 words
A catheter comprising: a flexible catheter body having proximal and distal ends; an elongate housing having proximal and distal ends, said housing being secured at its proximal end to the distal end of the catheter body and having an aperture on one side thereof; interactional means disposed within the housing for removing stenotic material which penetrates the aperture; at least two spaced-apart inflatable chambers located generally at the proximal and distal ends of the housing on a side opposite to that of the aperture and means for inflating the inflatable chambers.
Claim 3
Dependent Claim
25 words
A catheter as in claim 1, wherein the at least two inflatable chambers are interconnected so that they are inflated simultaneously by the inflation means.
Claim 4
Dependent Claim
22 words
A catheter as in claim 1, wherein the interactional means includes a blade and means for moving the blade past the aperture.
Claim 5
Dependent Claim
29 words
A catheter as in claim 3, wherein the blade is circular and the means for moving includes a drive cable for rotating and translating the blade past the aperture.
Claim 6
Dependent Claim
38 words
A catheter as in claim 1, wherein the inflatable chambers each have a length in the range from about 2 to 15 mm and are separated by a length in the range from about 4 to 30 mm.
Claim 7
Independent Claim
73 words
A method for removing stenotic material from a blood vessel, said method comprising: positioning a catheter housing having an aperture on one side thereof proximate a stenosed region within a patient's vascular system; inflating a pair of axially spaced-apart inflatable chambers on a side of the housing opposite to that of the aperture to urge stenotic material into the housing; and translating a cutting blade across the aperture to sever the stenotic material.
Claim 8
Independent Claim
73 words
A method for removing stenotic material from a blood vessel, said method comprising: positioning a catheter housing having an aperture on one side thereof proximate a stenosed region within a patient's vascular system; inflating a pair of axially spaced-apart inflatable chambers on a side of the housing opposite to that of the aperture to urge stenotic material into the housing; and translating a cutting blade across the aperture to sever the stenotic material.
Claim 9
Dependent Claim
16 words
A method as in claim 6, wherein the inflatable chambers are inflated to the same pressure.
Claim 10
Dependent Claim
21 words
A method as in claim 6, wherein the inflatable chambers are inflated to different pressures selected to stabilize the cutter housing.
Claim 11
Dependent Claim
28 words
A method as in claim 6, further comprising inflating a third inflatable chamber located between said spaced-apart balloon chambers in order to change the position of the housing.
References Cited (Backward Citations)
US2610626A
Cited
US4573966A
Cited
US4610662A
Cited
US4636195A
Cited
US4581017A
Cited
US4581017B1
Cited
US4747405A
Cited
US4781186A
Cited
US4771774A
Cited
US4669469A
Cited
US4958634A
Cited
US4794928A
Cited
US4983165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-03 | 1995-09-02 | 1996-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-03 | 1999-09-02 | 2000-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-03 | 2003-09-02 | 2004-03-03 | $7700.00 | Window Closed / Lapsed |