US6530939B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vascular device having articulation region and methods of use
Assignee: Incept LLC
•
Filing: 1999-07-30
•
Granted: 2003-03-11
•
Expires: 2019-07-30
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 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. The articulation region comprises a reduced thickness region of the support hoop that prevents kinks from forming in the support hoop when the apparatus is contracted to its delivery state, and curved regions that close the mouth of the sac to prevent material escaping from the sac when the apparatus is collapsed for removal.
Inventors
- 👤 Leo N. Hopkins
- 👤 Farhad Khosravi
- 👤 Amr Salahieh
- 👤 Jeff A. Krolik
- 👤 Jackson F. Demond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:15
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: 46
Claim 1
Independent Claim
100 words
Apparatus suitable for filter emboli or performing thrombectomy or embolectomy comprising: an elongated member having a distal region; a support structure attached to the distal region, the support structure having an articulation region interposed between curved regions that orient the articulation region relative to a vessel wall when the support structure is deployed within a vessel; and a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac, wherein the opposite sides of the support structure close towards one another when the apparatus is contracted to a contracted configuration.
Claim 2
Dependent Claim
100 words
Apparatus suitable for filter emboli or performing thrombectomy or embolectomy comprising: an elongated member having a distal region; a support structure attached to the distal region, the support structure having an articulation region interposed between curved regions that orient the articulation region relative to a vessel wall when the support structure is deployed within a vessel; and a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac, wherein the opposite sides of the support structure close towards one another when the apparatus is contracted to a contracted configuration.
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 woven material having a plurality of pores, the pores having a size determined by a weave pattern of the woven material.
Claim 6
Dependent Claim
25 words
The apparatus of claim 4 , wherein each one of the plurality of pores has a diameter in a range of 20 to 400 microns.
Claim 7
Dependent Claim
14 words
The apparatus of claim 1 , wherein the support structure comprises a super-elastic material.
Claim 8
Dependent Claim
14 words
The apparatus of claim 6 , wherein the super-elastic material comprises a nickel-titanium alloy.
Claim 9
Dependent Claim
26 words
The apparatus of claim 1 , wherein the support structure comprises a wire having a thickness that tapers to a minimum thickness at the articulation region.
Claim 10
Dependent Claim
43 words
The apparatus of claim 1 , wherein the apparatus has a deployed state, wherein the support structure engages an interior wall of a patient's vessel, and a delivery state, wherein the apparatus has the contracted configuration to permit insertion within a delivery sheath.
Claim 11
Dependent Claim
24 words
The apparatus of claim 9 , wherein the support structure is folded at the articulation region when the apparatus is in the delivery state.
Claim 12
Dependent Claim
34 words
The apparatus of claim 9 , 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 13
Dependent Claim
14 words
The apparatus of claim 1 , wherein the support structure comprises a radiopaque band.
Claim 14
Dependent Claim
25 words
The apparatus of claim 1 , wherein the blood permeable sac is affixed to the elongated member along a length of the blood permeable sac.
Claim 15
Dependent Claim
25 words
The apparatus of claim 1 wherein the support structure includes one or more side turns that stabilize and orient the apparatus in the deployed state.
Claim 16
Dependent Claim
14 words
The apparatus of claim 1 wherein the elongated member serves as a guide wire.
Claim 17
Dependent Claim
52 words
The apparatus of claim 1 further comprising: a nose cone disposed on the distal region of the elongated member distal to the support structure; and a delivery sheath having a first lumen for accepting the elongated member, support structure and blood permeable sac, and a second lumen for accepting a guide wire.
Claim 18
Dependent Claim
33 words
The apparatus of claim 16 wherein the first lumen of the delivery sheath opens to a skive in a lateral wall of the delivery sheath in a distal region of the delivery sheath.
Claim 19
Dependent Claim
33 words
The apparatus of claim 16 wherein the second lumen of the delivery sheath opens to a skive in a lateral wall of the delivery sheath in a distal region of the delivery sheath.
Claim 20
Dependent Claim
10 words
The apparatus of claim 1 further comprising a balloon catheter.
Claim 21
Independent Claim
160 words
A method of trapping emboli or thrombus during a medical procedure, the method comprising: providing apparatus comprising an elongated member, a support structure having an articulation region coupled to the elongated member, and a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac; 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 to expand the apparatus to a deployed state wherein the support structure seals against the vessel wall; providing an interventional device for performing a medical procedure, the interventional device comprising a guide wire lumen; percutaneously and transluminally advancing the interventional device along the elongated member to position the interventional device within the patient's vessel at a location proximal of the apparatus; and performing the medical procedure, the apparatus catching emboli released when the medical procedure is performed.
Claim 22
Independent Claim
160 words
A method of trapping emboli or thrombus during a medical procedure, the method comprising: providing apparatus comprising an elongated member, a support structure having an articulation region coupled to the elongated member, and a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac; 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 to expand the apparatus to a deployed state wherein the support structure seals against the vessel wall; providing an interventional device for performing a medical procedure, the interventional device comprising a guide wire lumen; percutaneously and transluminally advancing the interventional device along the elongated member to position the interventional device within the patient's vessel at a location proximal of the apparatus; and performing the medical procedure, the apparatus catching emboli released when the medical procedure is performed.
Claim 23
Dependent Claim
33 words
The method of claim 20 further comprising: 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 24
Dependent Claim
33 words
The method of claim 21 , wherein retracting the apparatus within the guide wire lumen comprises folding the support structure at the articulation region to close the mouth of the blood permeable sac.
Claim 25
Dependent Claim
96 words
The method of claim 20 , further comprising, prior to advancing the delivery sheath to a desired location within a patient's vessel: providing a catheter having a balloon in a distal region; inserting the catheter so that the balloon is disposed proximally of a lesion; and inflating the balloon to arrest antegrade flow through the vessel, wherein advancing the delivery sheath to a desired location within a patient's vessel comprises advancing the delivery sheath through an interior lumen of the catheter so that a distal region of the delivery sheath is disposed distal to the lesion.
Claim 26
Dependent Claim
27 words
The method of claim 23 , further comprising, after withdrawing the delivery sheath to expand the apparatus, deflating the balloon to re-establish antegrade flow through the vessel.
Claim 27
Dependent Claim
34 words
The method of claim 20 further comprising: partially 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 28
Dependent Claim
83 words
Apparatus suitable for filtering emboli or performing thrombectomy or embolectomy comprising: an elongated member having a distal region; a support structure comprising a super-elastic material attached to the distal region, the support structure having an articulation region interposed between curved regions that orient the articulation region relative to a vessel wall when the support structure is deployed within a vessel; and a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac.
Claim 29
Dependent Claim
83 words
Apparatus suitable for filtering emboli or performing thrombectomy or embolectomy comprising: an elongated member having a distal region; a support structure comprising a super-elastic material attached to the distal region, the support structure having an articulation region interposed between curved regions that orient the articulation region relative to a vessel wall when the support structure is deployed within a vessel; and a blood permeable sac affixed to the support structure so that the support structure forms a mouth of the blood permeable sac.
Claim 30
Dependent Claim
15 words
The apparatus of claim 26 , wherein the blood permeable sac comprises a biocompatible material.
Claim 31
Dependent Claim
25 words
The apparatus of claim 27 , wherein the biocompatible material comprises a material chosen from a list consisting of polyethylene, polypropylene, polyester, polyurethane and nylon.
Claim 32
Dependent Claim
34 words
The apparatus of claim 26 , 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 33
Dependent Claim
25 words
The apparatus of claim 29 , wherein each one of the plurality of pores has a diameter in a range of 20 to 400 microns.
Claim 34
Dependent Claim
14 words
The apparatus of claim 26 , wherein the super-elastic material comprises a nickel-titanium alloy.
Claim 35
Dependent Claim
26 words
The apparatus of claim 26 , wherein the support structure comprises a wire having a thickness that tapers to a minimum thickness at the articulation region.
Claim 36
Dependent Claim
43 words
The apparatus of claim 26 , wherein the apparatus has a deployed state, wherein the support structure 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 37
Dependent Claim
24 words
The apparatus of claim 33 , wherein the support structure is folded at the articulation region when the apparatus is in the delivery state.
Claim 38
Dependent Claim
34 words
The apparatus of claim 33 , 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 39
Dependent Claim
15 words
The apparatus of claim 26 , wherein the support structure further comprises a radiopaque band.
Claim 40
Dependent Claim
25 words
The apparatus of claim 27 , wherein the blood permeable sac is affixed to the elongated member along a length of the blood permeable sac.
Claim 41
Dependent Claim
25 words
The apparatus of claim 26 wherein the support structure includes one or more side turns that stabilize and orient the apparatus in the deployed state.
Claim 42
Dependent Claim
14 words
The apparatus of claim 26 wherein the elongated member serves as a guide wire.
Claim 43
Dependent Claim
52 words
The apparatus of claim 26 further comprising: a nose cone disposed on the distal region of the elongated member distal to the support structure; and a delivery sheath having a first lumen for accepting the elongated member, support structure and blood permeable sac, and a second lumen for accepting a guide wire.
Claim 44
Dependent Claim
33 words
The apparatus of claim 40 wherein the first lumen of the delivery sheath opens to a skive in a lateral wall of the delivery sheath in a distal region of the delivery sheath.
Claim 45
Dependent Claim
33 words
The apparatus of claim 40 wherein the second lumen of the delivery sheath opens to a skive in a lateral wall of the delivery sheath in a distal region of the delivery sheath.
Claim 46
Dependent Claim
10 words
The apparatus of claim 26 further comprising a balloon catheter.
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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) | 2006-03-10 | 2006-09-09 | 2007-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-03-10 | 2010-09-09 | 2011-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-03-10 | 2014-09-09 | 2015-03-11 | $7700.00 | Window Closed / Lapsed |