US6179861B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vascular device having one or more articulation regions and methods of use
Assignee: Incept LLC
•
Filing: 1999-12-23
•
Granted: 2001-01-30
•
Expires: 2019-12-23
Abstract
Abstract Apparatus and methods are provided for use in filtering emboli from a vessel and performing thrombectomy and embolectomy, wherein a vascular device comprises one or more support hoops, each having an articulation region connected near a distal end of a guide wire, and a blood permeable sac affixed to the support hoop or hoops to form a mouth of the blood permeable sac. The mouth of the sac closes when the apparatus is collapsed for removal to prevent material from escaping from the sac.
Inventors
- 👤 Farhad Khosravi
- 👤 Amr Salahieh
- 👤 Jeff A. Krolik
- 👤 Jackson F. Demond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0105; A61F2/013; A61B; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212; A61F2/011; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0008; A61F2230/0063; A61F2230/0073; A61F2230/008; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/09175; A61M2025/09183; A61M25/10; A61M2025/1043; A61M2025/1052; A61M2025/109
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
85 words
Apparatus for filtering emboli or performing thrombectomy or embolectomy, the apparatus comprising: an elongated member having a distal region; proximal and distal support hoops coupled to the distal region, each one of the proximal and distal support hoops having an articulation region interposed between curved regions; and a blood permeable sac affixed at its proximal end to the proximal support hoop so that the proximal hoop forms a mouth of the blood permeable sac, and affixed at its distal end to the distal support hoop.
Claim 2
Dependent Claim
85 words
Apparatus for filtering emboli or performing thrombectomy or embolectomy, the apparatus comprising: an elongated member having a distal region; proximal and distal support hoops coupled to the distal region, each one of the proximal and distal support hoops having an articulation region interposed between curved regions; and a blood permeable sac affixed at its proximal end to the proximal support hoop so that the proximal hoop forms a mouth of the blood permeable sac, and affixed at its distal end to the distal support hoop.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1 , wherein the blood permeable sac comprises a biocompatible material.
Claim 4
Dependent Claim
25 words
The apparatus of claim 2 , wherein the biocompatible material comprises a material chosen from a list consisting of polyethylene, polypropylene, polyester, polyurethane and nylon.
Claim 5
Dependent Claim
34 words
The apparatus of claim 1 , wherein the blood permeable sac comprises a plurality of pores, each one of the plurality of pores having a diameter in a range of 20 to 400 microns.
Claim 6
Dependent Claim
39 words
The apparatus of claim 4 , wherein each one of the plurality of pores has a cross-sectional area, and a sum area of the cross-sectional areas is greater than or equal to a cross-sectional area of a patient's vessel.
Claim 7
Dependent Claim
14 words
The apparatus of claim 1 , wherein the support hoops comprise a super-elastic material.
Claim 8
Dependent Claim
26 words
The apparatus of claim 1 , wherein each support hoop comprises a wire having a thickness that tapers to a minimum thickness at the articulation region.
Claim 9
Dependent Claim
44 words
The apparatus of claim 1 , wherein the apparatus has a deployed state, wherein the proximal support hoop engages an interior wall of a patient's vessel, and a delivery state, wherein the apparatus has a contracted configuration to permit insertion within a delivery sheath.
Claim 10
Dependent Claim
24 words
The apparatus of claim 8 , wherein the distal support hoop also engages the interior wall of the patient's vessel in the deployed state.
Claim 11
Dependent Claim
25 words
The apparatus of claim 9 , wherein the support hoops are folded at their respective articulation regions when the apparatus is in the delivery state.
Claim 12
Dependent Claim
24 words
The apparatus of claim 10 , wherein the mouth of the blood permeable sac is closed when the apparatus is in the contracted configuration.
Claim 13
Dependent Claim
26 words
The apparatus of claim 11 , wherein opposite sides of each support hoop close towards one another when the apparatus is contracted to its contracted configuration.
Claim 14
Dependent Claim
20 words
The apparatus of claim 1 , wherein one of the proximal and the distal support hoops comprises a radiopaque feature.
Claim 15
Dependent Claim
19 words
The apparatus of claim 13 , wherein the radiopaque feature comprises a radiopaque wire wrapped around the support hoop.
Claim 16
Dependent Claim
22 words
The apparatus of claim 1 , wherein the blood permeable sac has a length and a diameter that tapers along the length.
Claim 17
Dependent Claim
18 words
The apparatus of claim 15 , wherein the distal support hoop is smaller than the proximal support hoop.
Claim 18
Dependent Claim
26 words
The apparatus of claim 1 , wherein the articulation region comprises a gap, and the gap is bridged by a portion of the blood permeable sac.
Claim 19
Dependent Claim
24 words
The apparatus of claim 1 , wherein the proximal and distal support hoops are attached to a sheath slidably disposed on the elongated member.
Claim 20
Dependent Claim
21 words
The apparatus of claim 18 further comprising means for constraining longitudinal motion of the sheath with respect to the elongated member.
Claim 21
Independent Claim
102 words
A method of trapping emboli or thrombus during a medical procedure, the method comprising: providing apparatus comprising an elongated member, proximal and distal support hoops coupled to the elongated member, each one of the proximal and distal support hoops having an articulation region, and a blood permeable sac affixed to the proximal and distal support hoops; positioning the apparatus in a contracted delivery state within a delivery sheath; advancing the delivery sheath to a desired location within a patient's vessel; withdrawing the delivery sheath; and expanding the apparatus to a deployed state, wherein the proximal support hoop seals against the vessel wall.
Claim 22
Independent Claim
102 words
A method of trapping emboli or thrombus during a medical procedure, the method comprising: providing apparatus comprising an elongated member, proximal and distal support hoops coupled to the elongated member, each one of the proximal and distal support hoops having an articulation region, and a blood permeable sac affixed to the proximal and distal support hoops; positioning the apparatus in a contracted delivery state within a delivery sheath; advancing the delivery sheath to a desired location within a patient's vessel; withdrawing the delivery sheath; and expanding the apparatus to a deployed state, wherein the proximal support hoop seals against the vessel wall.
Claim 23
Dependent Claim
30 words
The method of claim 20 , wherein expanding the apparatus to a deployed state further comprises expanding the distal support hoop to engage the interior wall of the patient's vessel.
Claim 24
Dependent Claim
86 words
The method of claim 20 further comprising: providing an interventional device comprising a guide wire lumen; percutaneously and transluminally advancing the interventional device for performing a medical procedure along the elongated member to position within the patient's vessel at a location proximal of the apparatus; performing the medical procedure, the apparatus catching emboli released when the medical procedure is performed; retracting the apparatus into a collapsed configuration within the guide lumen of the interventional device; and removing the interventional device and apparatus from the patient's vessel.
Claim 25
Dependent Claim
30 words
The method of claim 22 , wherein retracting the apparatus within the guide wire lumen comprises folding each one of the proximal and distal support hoops at the articulation region.
Claim 26
Dependent Claim
25 words
The method of claim 20 , wherein providing apparatus comprises providing apparatus having a distal support hoop that is smaller than the proximal support hoop.
Claim 27
Dependent Claim
55 words
The method of claim 20 , wherein providing apparatus further comprises providing apparatus wherein the proximal and distal support hoops are coupled to a sheath slidably disposed on the elongated member, the method further comprising transmitting translational motion applied to the elongated member to the sheath without transmitting rotational motion applied to the elongated member.
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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) | 2004-01-30 | 2004-07-31 | 2005-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-30 | 2008-07-31 | 2009-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-30 | 2012-07-31 | 2013-01-30 | $7700.00 | Window Closed / Lapsed |