US6203561B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated vascular device having thrombectomy element and vascular filter and methods of use
Assignee: Incept LLC
•
Filing: 1999-12-23
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Granted: 2001-03-20
•
Expires: 2019-12-23
Abstract
Abstract Apparatus and methods are provided for use in removing thrombus from a vessel, wherein a vascular device comprises an thrombectomy element for excising or ablating thrombus and a vascular filter for capturing emboli generated during removal of the thrombus. The vascular filter comprises a support hoop having an articulation region connected near a distal end of a guide wire, and a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac. In a preferred embodiment, the thrombectomy element comprises a second support hoop and blood permeable sac attached to the guide wire proximal of the vascular filter support hoop.
Inventors
- 👤 Stephen Ramee
- 👤 Farhad Khosravi
- 👤 L. N. Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:03
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0105; A61F2/011; A61F2/012; A61F2/013; A61B; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212; 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: 24
Claim 1
Independent Claim
81 words
Apparatus suitable for performing thrombectomy comprising: an elongated member having a distal region; a support hoop attached to the distal region, the support hoop having a reduced-thickness articulation region, the hoop attached to the elongated member; a blood permeable sac affixed to the support hoop so that the hoop forms a mouth of the blood permeable sac; a thrombus removal element disposed proximal of the support hoop, the thrombus removal element movable in a proximal direction independent of the elongated member.
Claim 2
Dependent Claim
81 words
Apparatus suitable for performing thrombectomy comprising: an elongated member having a distal region; a support hoop attached to the distal region, the support hoop having a reduced-thickness articulation region, the hoop attached to the elongated member; a blood permeable sac affixed to the support hoop so that the hoop forms a mouth of the blood permeable sac; a thrombus removal element disposed proximal of the support hoop, the thrombus removal element movable in a proximal direction independent of the elongated member.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 , wherein the thrombus removal element comprises a second support hoop with blood permeable sac.
Claim 4
Dependent Claim
18 words
The apparatus of claim 2 , wherein the second support hoop is slidably disposed on the elongated member.
Claim 5
Dependent Claim
15 words
The apparatus of claim 1 , wherein the blood permeable sac comprises a biocompatible material.
Claim 6
Dependent Claim
25 words
The apparatus of claim 4 , wherein the biocompatible material comprises a material chosen from a list consisting of polyethylene, polypropylene, polyester, polyurethane and nylon.
Claim 7
Dependent Claim
34 words
The apparatus of claim 1 , wherein the blood permeable sac comprises a woven material having a plurality of pores, the pores having a size determined by a weave pattern of the woven material.
Claim 8
Dependent Claim
25 words
The apparatus of claim 6 , wherein each one of the plurality of pores has a diameter in a range of 20 to 400 microns.
Claim 9
Dependent Claim
14 words
The apparatus of claim 1 , wherein the support hoop comprises a super-elastic material.
Claim 10
Dependent Claim
14 words
The apparatus of claim 8 , wherein the super-elastic material comprises a nickel-titanium alloy.
Claim 11
Dependent Claim
26 words
The apparatus of claim 1 , wherein the support hoop comprises a wire having a thickness that tapers to a minimum thickness at the articulation region.
Claim 12
Dependent Claim
42 words
The apparatus of claim 1 , wherein the apparatus has a deployed state, wherein the 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 13
Dependent Claim
24 words
The apparatus of claim 11 , wherein the support hoop folds at the articulation region when the apparatus is contracted to the delivery state.
Claim 14
Dependent Claim
17 words
The apparatus of claim 11 , wherein thrombus is excised or ablated by the thrombus removal element.
Claim 15
Dependent Claim
34 words
The apparatus of claim 11 , wherein the mouth of the blood permeable sac is closed when the apparatus is in the contracted configuration, thereby preventing emboli from escaping from the blood permeable sac.
Claim 16
Dependent Claim
25 words
The apparatus of claim 12 wherein opposite sides of the support hoop close towards one another when the apparatus is contracted to its contracted configuration.
Claim 17
Dependent Claim
14 words
The apparatus of claim 1 , wherein the support hoop comprises a radiopaque band.
Claim 18
Dependent Claim
45 words
The apparatus of claim 1 further comprising: a nose cone disposed on the distal region of the elongated member distal to the support hoop; and a delivery sheath having a lumen for accepting the elongated member, thrombus removal element, support hoop and blood permeable sac.
Claim 19
Independent Claim
131 words
A method of trapping thrombus and/or emboli during a medical procedure, the method comprising: providing apparatus comprising an elongated member having a distal region, a support hoop having an articulation region coupled to the distal region of the elongated member, a blood permeable sac affixed to the support hoop so that the hoop forms a mouth of the blood permeable sac, and a thrombus removal element disposed proximal to the support hoop; 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; and withdrawing the delivery sheath to expand the apparatus to a deployed state wherein the support hoop seals against the vessel wall, and the thrombus removal element is configured to excise or ablate the thrombus.
Claim 20
Independent Claim
131 words
A method of trapping thrombus and/or emboli during a medical procedure, the method comprising: providing apparatus comprising an elongated member having a distal region, a support hoop having an articulation region coupled to the distal region of the elongated member, a blood permeable sac affixed to the support hoop so that the hoop forms a mouth of the blood permeable sac, and a thrombus removal element disposed proximal to the support hoop; 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; and withdrawing the delivery sheath to expand the apparatus to a deployed state wherein the support hoop seals against the vessel wall, and the thrombus removal element is configured to excise or ablate the thrombus.
Claim 21
Dependent Claim
46 words
The method of claim 18 , wherein advancing the delivery sheath to a desired location within a patient's vessel comprises advancing the delivery sheath through an interior lumen of a catheter so that a distal region of the delivery sheath is disposed distal to the lesion.
Claim 22
Dependent Claim
32 words
The method of claim 18 further comprising retracting the apparatus within the delivery sheath by folding the support hoop at the articulation region to close the mouth of the blood permeable sac.
Claim 23
Dependent Claim
20 words
The method of claim 20 , wherein the thrombus removal element comprises an additional support hoop and blood permeable sac.
Claim 24
Dependent Claim
40 words
The method of claim 21 , wherein the additional support hoop is slidably disposed on the elongated member, the method further comprising sliding the additional support hoop proximally to excise thrombus from the vessel by scraping against the vessel wall.
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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) | 2004-03-19 | 2004-09-18 | 2005-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-19 | 2008-09-18 | 2009-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-19 | 2012-09-18 | 2013-03-20 | $7700.00 | Window Closed / Lapsed |