Patent GB1456008A successfully refreshed from Google Patents.
US20030023263A1
Expired / Lapsed
US
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Apparatus and methods for aspirating emboli
Assignee: Incept LLC
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Filing: 2001-07-24
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Granted: —
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Expires: 2021-07-24
Abstract
Abstract Apparatus and methods for aspirating emboli from a vascular filter or stent within a patient's circulatory system are provided. A filter sac of the vascular filter permits blood flow and captures emboli from the flow. The aspiration device removes emboli from within or proximal to the vascular filter or stent to reduce the risk to the ischemia during retrieval of the vascular filter and during a treatment procedure. Retrieval of the vascular filter may be accomplished using either the aspiration catheter or a separate retrieval catheter.
Inventors
- 👤 Jeffrey Krolik
- 👤 Amr Salahieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:12
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61F; A61F2/00; A61F2/01; A61F2/0105; A61B17/221; A61B2217/00; A61B2217/002; A61B2217/005
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
91 words
1 . Apparatus for filtering and aspirating emboli from a vessel comprising: a vascular filter having a blood-permeable element disposed on a guidewire, the vascular filter causing emboli to become deposited in the vessel in the vicinity of the vascular filter; a first catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings, wherein the first catheter is adapted to be advanced along the guidewire to a location in the vessel in the vicinity of the vascular filter to aspirate emboli.
Claim 2
Dependent Claim
91 words
1 . Apparatus for filtering and aspirating emboli from a vessel comprising: a vascular filter having a blood-permeable element disposed on a guidewire, the vascular filter causing emboli to become deposited in the vessel in the vicinity of the vascular filter; a first catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings, wherein the first catheter is adapted to be advanced along the guidewire to a location in the vessel in the vicinity of the vascular filter to aspirate emboli.
Claim 3
Dependent Claim
26 words
2 . The apparatus of claim 1 wherein the distal end of the first catheter is dimensioned so that the distal opening enters the blood-permeable element.
Claim 4
Dependent Claim
35 words
3 . The apparatus of claim 1 wherein the distal opening of the first catheter is dimensioned so that the vascular filter may be at least partially retracted in the lumen of the first catheter.
Claim 5
Dependent Claim
17 words
4 . The apparatus of claim 1 wherein the distal end of the first catheter is curved.
Claim 6
Dependent Claim
27 words
5 . The apparatus of claim 1 wherein the distal end of the first catheter includes one or more aspiration holes disposed proximal of the distal opening.
Claim 7
Dependent Claim
16 words
6 . The apparatus of claim 1 wherein the first catheter comprises a rapid exchange device.
Claim 8
Dependent Claim
15 words
7 . The apparatus of claim 1 wherein the first catheter comprises an over-the-wire device.
Claim 9
Dependent Claim
44 words
8 . The apparatus of claim 1 further comprising a second catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings, the lumen of the second catheter dimensioned to accept the first catheter therein.
Claim 10
Dependent Claim
35 words
9 . The apparatus of claim 8 wherein the first catheter includes one or more aspiration holes disposed proximal of the distal opening and the second catheter selectively occludes the one or more aspiration holes.
Claim 11
Dependent Claim
35 words
10 . The apparatus of claim 8 wherein the distal opening of the second catheter is dimensioned so that the vascular filter may be at least partially retracted in the lumen of the second catheter.
Claim 12
Dependent Claim
111 words
11 . A method of aspirating emboli from a vessel comprising: delivering a vascular filter having a blood-permeable element to a treatment site within a vessel so that emboli become deposited in the vessel in the vicinity of the vascular filter; providing a first catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings; advancing the first catheter to a location in the vessel so that the distal opening is in close proximity to the vascular filter; and inducing suction at the proximal opening to aspirate emboli from the vessel through the distal opening into the lumen of the first catheter.
Claim 13
Dependent Claim
111 words
11 . A method of aspirating emboli from a vessel comprising: delivering a vascular filter having a blood-permeable element to a treatment site within a vessel so that emboli become deposited in the vessel in the vicinity of the vascular filter; providing a first catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings; advancing the first catheter to a location in the vessel so that the distal opening is in close proximity to the vascular filter; and inducing suction at the proximal opening to aspirate emboli from the vessel through the distal opening into the lumen of the first catheter.
Claim 14
Dependent Claim
25 words
12 . The method of claim 11 further comprising, while inducing suction, moving the first catheter slightly proximally and distally relative to the vascular filter.
Claim 15
Dependent Claim
27 words
13 . The method of claim 11 further comprising, while inducing suction, advancing the distal end and distal opening of the first catheter within the vascular filter.
Claim 16
Dependent Claim
35 words
14 . The method of claim 11 further comprising advancing the first catheter to retrieve at least a portion of the vascular filter through the distal opening and into the lumen of the first catheter.
Claim 17
Dependent Claim
63 words
15 . The method of claim 11 further comprising: providing a second catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings; and advancing the second catheter over the first catheter to retrieve at least a portion of the vascular filter through the distal opening and into the lumen of the second catheter.
Claim 18
Dependent Claim
130 words
16 . A method of aspirating emboli from a vessel in the vicinity of a stent, comprising: delivering a vascular filter having a blood-permeable element to a treatment site within a vessel so that emboli become deposited in the vessel in the vicinity of the vascular filter; delivering a stent into the vessel at a location proximal of the vascular filter; providing a first catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings; advancing the first catheter to a location in the vessel so that the distal opening is in close proximity to the stent; and inducing suction at the proximal opening to aspirate emboli from the vessel through the distal opening into the lumen of the first catheter.
Claim 19
Dependent Claim
130 words
16 . A method of aspirating emboli from a vessel in the vicinity of a stent, comprising: delivering a vascular filter having a blood-permeable element to a treatment site within a vessel so that emboli become deposited in the vessel in the vicinity of the vascular filter; delivering a stent into the vessel at a location proximal of the vascular filter; providing a first catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings; advancing the first catheter to a location in the vessel so that the distal opening is in close proximity to the stent; and inducing suction at the proximal opening to aspirate emboli from the vessel through the distal opening into the lumen of the first catheter.
Claim 20
Dependent Claim
24 words
17 . The method of claim 16 further comprising, while inducing suction, moving the first catheter slightly proximally and distally relative to the stent.
Claim 21
Dependent Claim
26 words
18 . The method of claim 16 further comprising, while inducing suction, advancing the distal end and distal opening of the first catheter within the stent.
Claim 22
Dependent Claim
35 words
19 . The method of claim 16 further comprising advancing the first catheter to retrieve at least a portion of the vascular filter through the distal opening and into the lumen of the first catheter.
Claim 23
Dependent Claim
63 words
20 . The method of claim 16 further comprising: providing a second catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings; and advancing the second catheter over the first catheter to retrieve at least a portion of the vascular filter through the distal opening and into the lumen of the second catheter.
Claim 24
Dependent Claim
54 words
21 . An intravascular aspiration system, comprising: a first catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings; a guidewire; and wherein the first catheter is adapted to be advanced along the guidewire to a location in a blood vessel to aspirate emboli.
Claim 25
Dependent Claim
54 words
21 . An intravascular aspiration system, comprising: a first catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings; a guidewire; and wherein the first catheter is adapted to be advanced along the guidewire to a location in a blood vessel to aspirate emboli.
Claim 26
Dependent Claim
24 words
22 . The system of claim 21 , further comprising a vascular filter disposed on the guidewire, the vascular filter including a blood-permeable element.
Claim 27
Dependent Claim
18 words
23 . The system of claim 22 , wherein a nose cone is coupled to the blood-permeable element.
Claim 28
Dependent Claim
27 words
24 . The system of claim 21 wherein the distal end of the first catheter includes one or more aspiration holes disposed proximal of the distal opening.
Claim 29
Dependent Claim
44 words
25 . The system of claim 21 further comprising a second catheter having proximal and distal ends, proximal and distal openings, and a lumen extending between the proximal and distal openings, the lumen of the second catheter dimensioned to accept the first catheter therein.
Claim 30
Dependent Claim
35 words
26 . The system of claim 25 wherein the first catheter includes one or more aspiration holes disposed proximal of the distal opening and the second catheter selectively occludes the one or more aspiration holes.
Claim 31
Dependent Claim
21 words
27 . The system of claim 21 , further comprising a syringe coupled to a side port of the first catheter.
References Cited (Backward Citations)
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