US6309399B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries
Assignee: Boston Scientific Scimed Inc
•
Filing: 2000-09-07
•
Granted: 2001-10-30
•
Expires: 2020-09-07
Abstract
Abstract An arterial catheter system for removing plaque from the aorta and other arteries is disclosed. The system typically includes an elongate catheter member, a filtration apparatus disposed within the distal region, and an atherectomy assembly which includes a mechanism for trapping and holding mobile or fixed plaque and an excising mechanism for removing the plaque. In use, the catheter is positioned so that the atherectomy assembly lies within a region of interest, the filtration apparatus is deployed downstream of the region of interest, the plaque is trapped and held by a snare, vacuum, or other trapping means, and then the excising mechanism is activated to remove the plaque. Methods are also disclosed for removing plaque from the aorta and other arteries.
Inventors
- 👤 Denise R. Barbut
- 👤 Jonathan D. Root
- 👤 Giovanni Pastrone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320783; A61B17/22; A61B17/22031; A61B17/221; A61F; A61F2/00; A61F2/01; A61F2/0105; A61F2/013; A61B10/00; A61B10/02; A61B10/06; A61B17/32056; A61B17/32075; A61B2010/0225; A61B17/00234; A61B2017/00287; A61B2017/22051; A61B2017/22065; A61B2017/22068; A61B2017/22069; A61B2017/2215; A61B17/30; A61B2017/306; A61B17/320016; A61B2017/32004; A61B2017/320064; A61B8/00; A61B8/08; A61B8/0808; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0063; A61F2230/0067; A61F2230/0071; A61F2230/0073; A61F2230/008; A61M; A61M2210/00; A61M2210/12; A61M2210/127; A61M25/00
Claims Analysis
Total Claims: 70
Claim 1
Independent Claim
128 words
A catheter for removing plaque from a blood vessel, comprising: a flexible elongate member having an outer surface and a distal region; expansion means disposed at the elongate member which is expandable between a contracted condition and an enlarged condition; a filter mesh movable relative to the outer surface and having a first edge and a second edge; the first edge attached to the expansion means; the second edge closely associated with the outer surface of the flexible elongate member; and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising means for plaque removal and trapping means, wherein during use plaque is trapped and held by the trapping means and excised from a blood vessel by the means for plaque removal.
Claim 2
Dependent Claim
128 words
A catheter for removing plaque from a blood vessel, comprising: a flexible elongate member having an outer surface and a distal region; expansion means disposed at the elongate member which is expandable between a contracted condition and an enlarged condition; a filter mesh movable relative to the outer surface and having a first edge and a second edge; the first edge attached to the expansion means; the second edge closely associated with the outer surface of the flexible elongate member; and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising means for plaque removal and trapping means, wherein during use plaque is trapped and held by the trapping means and excised from a blood vessel by the means for plaque removal.
Claim 3
Dependent Claim
18 words
The catheter in accordance with claim 1 , wherein the flexible elongate member is equipped with steering capabilities.
Claim 4
Dependent Claim
27 words
The catheter in accordance with claim 1 , wherein the flexible elongate member includes a housing having a cavity adapted to receive and store excised plaque material.
Claim 5
Dependent Claim
30 words
The catheter in accordance with claim 1 , wherein the expansion means comprises an umbrella frame having a plurality of arms which, upon activation, bend outwardly to the enlarged condition.
Claim 6
Dependent Claim
19 words
The catheter in accordance with claim 1 , wherein the filter mesh is disposed circumferentially about the elongate member.
Claim 7
Dependent Claim
21 words
The catheter in accordance with claim 1 , wherein the filter mesh is disposed at a side of the elongate member.
Claim 8
Dependent Claim
23 words
The catheter in accordance with claim 1 , wherein the filter mesh is disposed distally of a distal end of the elongate member.
Claim 9
Dependent Claim
20 words
The catheter in accordance with claim 1 , wherein the filter mesh is movable longitudinally relative to the elongate member.
Claim 10
Dependent Claim
32 words
The catheter in accordance with claim 1 , wherein the atherectomy assembly is disposed within the distal region of the elongate member and distal to the expansion means and the filter mesh.
Claim 11
Dependent Claim
32 words
The catheter in accordance with claim 1 , wherein the atherectomy assembly is disposed within the distal region of the elongate member and proximal to the expansion means and the filter mesh.
Claim 12
Dependent Claim
17 words
The catheter in accordance with claim 1 , wherein the elongate member extends through the filter mesh.
Claim 13
Dependent Claim
16 words
The catheter in accordance with claim 1 , wherein the expansion means comprises an inflation seal.
Claim 14
Dependent Claim
89 words
The catheter in accordance with claim 12 , wherein the elongate member further comprises an inflation system comprising a first lumen adapted to receive pressurized fluid and a second lumen adapted to evacuate gas, and wherein the inflation seal further includes an entry port in fluid communication with the first lumen of the flexible elongate member, so that when fluid is advanced through the first lumen, the fluid enters the inflation seal and forces gas from the inflation seal through the second lumen, thereby purging the system of gas.
Claim 15
Dependent Claim
44 words
The catheter in accordance with claim 13 , wherein the inflation seal comprises a tubular balloon which encloses a chamber, and wherein the entry port and exit port are in close proximity, and wherein a septum is disposed between the entry and exit ports.
Claim 16
Dependent Claim
25 words
The catheter in accordance with claim 12 , further comprising a plurality of holding strings which attach the inflation seal to the flexible elongate member.
Claim 17
Dependent Claim
16 words
The catheter in accordance with claim 12 , wherein the trapping means comprises a suction device.
Claim 18
Dependent Claim
15 words
The catheter in accordance with claim 12 , wherein the trapping means comprises a snare.
Claim 19
Dependent Claim
19 words
The catheter in accordance with claim 12 , wherein the trapping means comprises a surface having an adjustable orifice.
Claim 20
Dependent Claim
18 words
The catheter in accordance with claim 12 , wherein the means for plaque removal comprises a cutting blade.
Claim 21
Dependent Claim
17 words
The catheter in accordance with claim 12 , wherein the means for plaque removal comprises a snare.
Claim 22
Dependent Claim
21 words
The catheter in accordance with claim 12 , wherein the means for plaque removal comprises a surface having an adjustable orifice.
Claim 23
Dependent Claim
36 words
The catheter in accordance with claim 12 , wherein the means for plaque removal comprises a basket having an adjustable opening adapted to close about the plaque and excise a portion of the plaque by pinching.
Claim 24
Dependent Claim
28 words
The catheter in accordance with claim 12 , wherein the means for plaque removal comprises a plurality of claws which are movable between an open and closed position.
Claim 25
Dependent Claim
35 words
The catheter in accordance with claim 12 , wherein the means for plaque removal comprises first and second substantially semispherical surfaces pivotally connected to the elongate member and movable between an open and closed position.
Claim 26
Dependent Claim
57 words
The catheter in accordance with claim 12 , wherein the means for plaque removal comprises a basket and a cutting wire having a first end anchored to the elongate member and a second end which is drawn in a proximal direction, wherein a segment of the cutting wire sweeps across the opening to the basket during operation.
Claim 27
Dependent Claim
24 words
The catheter in accordance with claim 1 , further comprising one or more positioning fingers disposed within the distal region of the elongate member.
Claim 28
Dependent Claim
199 words
A catheter for removing plaque from a blood vessel, comprising: a flexible elongate member having an outer surface and a distal region; an inflation seal expandable between a contracted position and an enlarged condition; an inflation system comprising a first lumen adapted to receive pressurized fluid and a second lumen adapted to evacuate gas, and wherein the inflation seal further includes an entry port in fluid communication with the first lumen of the flexible elongate member, so that When fluid is advanced through the first lumen, the fluid enters the inflation seal and forces gas from the inflation seal through the second lumen, thereby purging the system of gas; a filter mesh movable relative to the outer surface and having a first edge and a second edge; the first edge attached to the inflation seal; the second edge being disposed circumferentially relative to the outer surface of the flexible elongate member; and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising means for plaque removal and trapping means, wherein during use plaque is trapped and held by the trapping means and excised from a blood vessel by the means for plaque removal.
Claim 29
Dependent Claim
199 words
A catheter for removing plaque from a blood vessel, comprising: a flexible elongate member having an outer surface and a distal region; an inflation seal expandable between a contracted position and an enlarged condition; an inflation system comprising a first lumen adapted to receive pressurized fluid and a second lumen adapted to evacuate gas, and wherein the inflation seal further includes an entry port in fluid communication with the first lumen of the flexible elongate member, so that When fluid is advanced through the first lumen, the fluid enters the inflation seal and forces gas from the inflation seal through the second lumen, thereby purging the system of gas; a filter mesh movable relative to the outer surface and having a first edge and a second edge; the first edge attached to the inflation seal; the second edge being disposed circumferentially relative to the outer surface of the flexible elongate member; and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising means for plaque removal and trapping means, wherein during use plaque is trapped and held by the trapping means and excised from a blood vessel by the means for plaque removal.
Claim 30
Dependent Claim
18 words
The catheter in accordance with claim 27 , wherein the flexible elongate member is equipped with steering capabilities.
Claim 31
Dependent Claim
27 words
The catheter in accordance with claim 27 , wherein the flexible elongate member includes a housing having a cavity adapted to receive and store excised plaque material.
Claim 32
Dependent Claim
30 words
The catheter in accordance with claim 27 , wherein the inflation seal comprises an umbrella frame having a plurality of arms which, upon activation, bend outwardly to the enlarged condition.
Claim 33
Dependent Claim
32 words
The catheter in accordance with claim 27 , wherein the atherectomy assembly is disposed within the distal region of the elongate member and distal to the inflation seal and the filter mesh.
Claim 34
Dependent Claim
32 words
The catheter in accordance with claim 27 , wherein the atherectomy assembly is disposed within the distal region of the elongate member and proximal to the inflation seal and the filter mesh.
Claim 35
Dependent Claim
17 words
The catheter in accordance with claim 27 , wherein the elongate member extends through the filter mesh.
Claim 36
Dependent Claim
44 words
The catheter in accordance with claim 27 , wherein the inflation seal comprises a tubular balloon which encloses a chamber, and wherein the entry port and exit port are in close proximity, and wherein a septum is disposed between the entry and exit ports.
Claim 37
Dependent Claim
25 words
The catheter in accordance with claim 27 , further comprising a plurality of holding strings which attach the inflation seal to the flexible elongate member.
Claim 38
Dependent Claim
16 words
The catheter in accordance with claim 27 , wherein the trapping means comprises a suction device.
Claim 39
Dependent Claim
15 words
The catheter in accordance with claim 27 , wherein the trapping means comprises a snare.
Claim 40
Dependent Claim
19 words
The catheter in accordance with claim 27 , wherein the trapping means comprises a surface having an adjustable orifice.
Claim 41
Dependent Claim
18 words
The catheter in accordance with claim 27 , wherein the means for plaque removal comprises a cutting blade.
Claim 42
Dependent Claim
17 words
The catheter in accordance with claim 27 , wherein the means for plaque removal comprises a snare.
Claim 43
Dependent Claim
21 words
The catheter in accordance with claim 27 , wherein the means for plaque removal comprises a surface having an adjustable orifice.
Claim 44
Dependent Claim
36 words
The catheter in accordance with claim 27 , wherein the means for plaque removal comprises a basket having an adjustable opening adapted to close about the plaque and excise a portion of the plaque by pinching.
Claim 45
Dependent Claim
28 words
The catheter in accordance with claim 27 , wherein the means for plaque removal comprises a plurality of claws which are movable between an open and closed position.
Claim 46
Dependent Claim
35 words
The catheter in accordance with claim 27 , wherein the means for plaque removal comprises first and second substantially semispherical surfaces pivotally connected to the elongate member and movable between an open and closed position.
Claim 47
Dependent Claim
57 words
The catheter in accordance with claim 27 , wherein the means for plaque removal comprises a basket and a cutting wire having a first end anchored to the elongate member and a second end which is drawn in a proximal direction, wherein a segment of the cutting wire sweeps across the opening to the basket during operation.
Claim 48
Dependent Claim
24 words
The catheter in accordance with claim 27 , further comprising one or more positioning fingers disposed within the distal region of the elongate member.
Claim 49
Dependent Claim
132 words
A catheter for removing plaque from a blood vessel, comprising: a flexible elongate member having an outer surface and a distal region; expansion means disposed at the elongate member which is expandable between a contracted condition and an enlarged condition; a filter mesh longitudinally movable relative to the outer surface and having a first edge and a second edge; the first edge attached to the expansion means; the second edge being disposed circumferentially relative to the outer surface of the flexible elongate member; and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising means for plaque removal and a suction device, wherein during use plaque is trapped and held by the suction device and excised from a blood vessel by the means for plaque removal.
Claim 50
Dependent Claim
132 words
A catheter for removing plaque from a blood vessel, comprising: a flexible elongate member having an outer surface and a distal region; expansion means disposed at the elongate member which is expandable between a contracted condition and an enlarged condition; a filter mesh longitudinally movable relative to the outer surface and having a first edge and a second edge; the first edge attached to the expansion means; the second edge being disposed circumferentially relative to the outer surface of the flexible elongate member; and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising means for plaque removal and a suction device, wherein during use plaque is trapped and held by the suction device and excised from a blood vessel by the means for plaque removal.
Claim 51
Dependent Claim
18 words
The catheter in accordance with claim 47 , wherein the flexible elongate member is equipped with steering capabilities.
Claim 52
Dependent Claim
27 words
The catheter in accordance with claim 47 , wherein the flexible elongate member includes a housing having a cavity adapted to receive and store excised plaque material.
Claim 53
Dependent Claim
30 words
The catheter in accordance with claim 47 , wherein the expansion means comprises an umbrella frame having a plurality of arms which, upon activation, bend outwardly to the enlarged condition.
Claim 54
Dependent Claim
32 words
The catheter in accordance with claim 47 , wherein the atherectomy assembly is disposed within the distal region of the elongate member and distal to the expansion means and the filter mesh.
Claim 55
Dependent Claim
32 words
The catheter in accordance with claim 47 , wherein the atherectomy assembly is disposed within the distal region of the elongate member and proximal to the expansion means and the filter mesh.
Claim 56
Dependent Claim
17 words
The catheter in accordance with claim 47 , wherein the elongate member extends through the filter mesh.
Claim 57
Dependent Claim
16 words
The catheter in accordance with claim 47 , wherein the expansion means comprises an inflation seal.
Claim 58
Dependent Claim
89 words
The catheter in accordance with claim 54 , wherein the elongate member further comprises an inflation system comprising a first lumen adapted to receive pressurized fluid and a second lumen adapted to evacuate gas, and wherein the inflation seal further includes an entry port in fluid communication with the first lumen of the flexible elongate member, so that when fluid is advanced through the first lumen, the fluid enters the inflation seal and forces gas from the inflation seal through the second lumen, thereby purging the system of gas.
Claim 59
Dependent Claim
44 words
The catheter in accordance with claim 55 , wherein the inflation seal comprises a tubular balloon which encloses a chamber, and wherein the entry port and exit port are in close proximity, and wherein a septum is disposed between the entry and exit ports.
Claim 60
Dependent Claim
25 words
The catheter in accordance with claim 53 , further comprising a plurality of holding strings which attach the inflation seal to the flexible elongate member.
Claim 61
Dependent Claim
15 words
The catheter in accordance with claim 53 , wherein the trapping means comprises a snare.
Claim 62
Dependent Claim
19 words
The catheter in accordance with claim 53 , wherein the trapping means comprises a surface having an adjustable orifice.
Claim 63
Dependent Claim
18 words
The catheter in accordance with claim 53 , wherein the means for plaque removal comprises a cutting blade.
Claim 64
Dependent Claim
17 words
The catheter in accordance with claim 53 , wherein the means for plaque removal comprises a snare.
Claim 65
Dependent Claim
21 words
The catheter in accordance with claim 53 , wherein the means for plaque removal comprises a surface having an adjustable orifice.
Claim 66
Dependent Claim
36 words
The catheter in accordance with claim 54 , wherein the means for plaque removal comprises a basket having an adjustable opening adapted to close about the plaque and excise a portion of the plaque by pinching.
Claim 67
Dependent Claim
28 words
The catheter in accordance with claim 54 , wherein the means for plaque removal comprises a plurality of claws which are movable between an open and closed position.
Claim 68
Dependent Claim
35 words
The catheter in accordance with claim 54 , wherein the means for plaque removal comprises first and second substantially semispherical surfaces pivotally connected to the elongate member and movable between an open and closed position.
Claim 69
Dependent Claim
57 words
The catheter in accordance with claim 54 , wherein the means for plaque removal comprises a basket and a cutting wire having a first end anchored to the elongate member and a second end which is drawn in a proximal direction, wherein a segment of the cutting wire sweeps across the opening to the basket during operation.
Claim 70
Dependent Claim
24 words
The catheter in accordance with claim 48 , further comprising one or more positioning fingers disposed within the distal region of the elongate member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-10-29 | 2005-04-30 | 2005-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-10-29 | 2009-04-30 | 2009-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-10-29 | 2013-04-30 | 2013-10-30 | $7700.00 | Window Closed / Lapsed |