Patent US2700297A successfully refreshed from Google Patents.
US20020022858A1
Expired / Lapsed
US
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Vascular device for emboli removal having suspension strut and methods of use
Assignee: Incept LLC
•
Filing: 2001-01-16
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Granted: —
•
Expires: 2021-01-16
Abstract
Abstract Apparatus and methods are provided for use in filtering emboli from a vessel, wherein a vascular filter disposed on a guidewire, the vascular filter comprising a support hoop disposed from a suspension strut so as to permit lateral eccentric displacement of the support hoop relative to a longitudinal axis of the guidewire. A blood permeable sac is affixed to the support hoop to form a mouth of the blood permeable sac. The support hoop is disposed obliquely relative to the guidewire and is capable of being properly used in a wide range of vessel diameters. The support hoop collapses the mouth of the blood permeable sac during removal of the vascular filter to prevent material from escaping from the sac. A delivery sheath and introducer sheath for use with the vascular filter of the present invention are also provided.
Inventors
- 👤 Jackson Demond
- 👤 Amr Salahieh
- 👤 Farhad Khosravi
- 👤 Jeff Krolik
- 👤 Kirk Young
- 👤 Richard Renati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0105; A61F2/011; A61B; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0008; A61F2230/0063; A61F2230/0067; A61F2230/0069; 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: 43
Claim 1
Independent Claim
71 words
1 . Apparatus suitable for filtering emboli comprising: an elongated member having a distal region having a longitudinal axis; a support hoop; a suspension member coupling the support hoop to the distal region so that the support hoop may be eccentrically laterally displaced relative to the longitudinal axis; and a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac.
Claim 2
Dependent Claim
71 words
1 . Apparatus suitable for filtering emboli comprising: an elongated member having a distal region having a longitudinal axis; a support hoop; a suspension member coupling the support hoop to the distal region so that the support hoop may be eccentrically laterally displaced relative to the longitudinal axis; and a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac.
Claim 3
Dependent Claim
17 words
2 . The apparatus of claim 1 , wherein the blood permeable sac comprises a biocompatible material.
Claim 4
Dependent Claim
30 words
3 . The apparatus of claim 2 , wherein the biocompatible material comprises a material chosen from a group consisting of polyethylene, polypropylene, polyurethane, polyester, polyethylene tetraphlalate, nylon and polytetrafluoroethylene.
Claim 5
Dependent Claim
36 words
4 . 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
27 words
5 . 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
16 words
6 . The apparatus of claim 1 , wherein the support hoop comprises a super-elastic material.
Claim 8
Dependent Claim
15 words
7 . The apparatus of claim 1 , wherein the support hoop comprises stainless steel.
Claim 9
Dependent Claim
16 words
8 . The apparatus of claim 1 , wherein the support hoop includes an articulation region.
Claim 10
Dependent Claim
45 words
9 . The apparatus of claim 1 , wherein the apparatus has a deployed state, wherein the 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 11
Dependent Claim
14 words
10 . The apparatus of claim 1 , further comprising a single-use delivery sheath.
Claim 12
Dependent Claim
36 words
11 . The apparatus of claim 9 , wherein the mouth of the blood permeable sac is closed when the apparatus is in the contracted configuration to prevent emboli from escaping from the blood permeable sac.
Claim 13
Dependent Claim
28 words
12 . The apparatus of claim 11 wherein opposite sides of the first support hoop close towards one another when the apparatus is contracted to its contracted configuration.
Claim 14
Dependent Claim
17 words
13 . The apparatus of claim 1 , wherein the first support hoop comprises a radiopaque feature.
Claim 15
Dependent Claim
30 words
14 . The apparatus of claim 1 , further comprising a tube disposed in the distal region, and the suspension strut and blood permeable sac are affixed to the tube.
Claim 16
Dependent Claim
19 words
15 . The apparatus of claim 14 wherein the distal region has a reduced diameter to accept the tube.
Claim 17
Dependent Claim
27 words
16 . The apparatus of claim 1 wherein the suspension strut further includes one-or more side turns to stabilize and orient the apparatus in the deployed state.
Claim 18
Dependent Claim
15 words
17 . The apparatus of claim 1 wherein the elongated member is a guide wire.
Claim 19
Dependent Claim
16 words
18 . The apparatus of claim 14 further comprising a nose cone disposed on the tube.
Claim 20
Dependent Claim
24 words
19 . The apparatus of claim 1 , wherein the blood permeable sac has a length and a diameter that tapers along the length.
Claim 21
Dependent Claim
22 words
20 . The apparatus of claim 1 , wherein the blood permeable sac comprises a plurality of pores formed by laser drilling.
Claim 22
Dependent Claim
28 words
21 . The apparatus of claim 1 further comprising a delivery sheath having a longitudinal perforation, the delivery sheath retaining the vascular filter in a contracted delivery state.
Claim 23
Dependent Claim
29 words
22 . The apparatus of claim 21 further comprising an introducer sheath having a longitudinal slit, the introducer sheath facilitating insertion of the vascular filter into a guide catheter.
Claim 24
Dependent Claim
68 words
23 . Apparatus suitable for filtering emboli comprising: an elongated member having a distal region having a longitudinal axis; a support hoop; a suspension member coupling the support hoop to the distal region so that the support is disposed obliquely relative to the longitudinal axis; and a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac.
Claim 25
Dependent Claim
68 words
23 . Apparatus suitable for filtering emboli comprising: an elongated member having a distal region having a longitudinal axis; a support hoop; a suspension member coupling the support hoop to the distal region so that the support is disposed obliquely relative to the longitudinal axis; and a blood permeable sac affixed to the support hoop so that the support hoop forms a mouth of the blood permeable sac.
Claim 26
Dependent Claim
17 words
24 . The apparatus of claim 23 , wherein the blood permeable sac comprises a biocompatible material.
Claim 27
Dependent Claim
28 words
25 . The apparatus of claim 23 , wherein the blood permeable sac comprises a plurality of pores having diameters in a range of 20 to 400 microns.
Claim 28
Dependent Claim
16 words
26 . The apparatus of claim 23 , wherein the support hoop includes an articulation region.
Claim 29
Dependent Claim
45 words
27 . The apparatus of claim 23 , wherein the apparatus has a deployed state, wherein the 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 30
Dependent Claim
14 words
28 . The apparatus of claim 23 , further comprising a single-use delivery sheath.
Claim 31
Dependent Claim
36 words
29 . The apparatus of claim 23 , wherein the mouth of the blood permeable sac is closed when the apparatus is in the contracted configuration to prevent emboli from escaping from the blood permeable sac.
Claim 32
Dependent Claim
30 words
30 . The apparatus of claim 23 , further comprising a tube disposed in the distal region, and the suspension strut and blood permeable sac are affixed to the tube.
Claim 33
Dependent Claim
19 words
31 . The apparatus of claim 30 wherein the distal region has a reduced diameter to accept the tube.
Claim 34
Dependent Claim
24 words
32 . The apparatus of claim 23 wherein the elongated member is a guide wire and the guide wire further comprises an articulation region.
Claim 35
Dependent Claim
112 words
33 . A method of filtering emboli from flow within a vessel comprising: providing a vascular filter mounted on a distal region of an elongated member, the elongated member having a longitudinal axis, the vascular filter comprising a support hoop, a suspension member coupling the support hoop to the distal region and a blood permeable sac affixed to the support hoop; inserting the distal region of the elongated member and the vascular filter into a vessel; deploying the vascular filter within the vessel at a location at which the support hoop is eccentrically laterally displaced relative to the longitudinal axis and the support hoop forms a mouth of the blood permeable sac.
Claim 36
Dependent Claim
112 words
33 . A method of filtering emboli from flow within a vessel comprising: providing a vascular filter mounted on a distal region of an elongated member, the elongated member having a longitudinal axis, the vascular filter comprising a support hoop, a suspension member coupling the support hoop to the distal region and a blood permeable sac affixed to the support hoop; inserting the distal region of the elongated member and the vascular filter into a vessel; deploying the vascular filter within the vessel at a location at which the support hoop is eccentrically laterally displaced relative to the longitudinal axis and the support hoop forms a mouth of the blood permeable sac.
Claim 37
Dependent Claim
28 words
34 . The method of claim 33 , wherein providing a vascular filter further comprises providing a vascular filter wherein the blood permeable sac comprises a biocompatible material.
Claim 38
Dependent Claim
23 words
35 . The method of claim 33 , wherein deploying the vascular filter further comprises articulating the support hoop at an articulation region.
Claim 39
Dependent Claim
27 words
36 . The method of claim 33 , wherein deploying the vascular filter comprises engaging the support hoop in apposition to an interior wall of the vessel.
Claim 40
Dependent Claim
30 words
37 . The method of claim 33 further comprising, after completion of a diagnostic or therapeutic procedure, closing the mouth of the blood permeable sac and retrieving the vascular filter.
Claim 41
Dependent Claim
72 words
38 . The method of claim 33 wherein inserting the distal region of the elongated member and the vascular filter into a vessel further comprises: providing a guide catheter having a valve; providing an introducer sheath; inserting the introducer sheath into the guide catheter through the valve; inserting the distal region of the elongated member and the vascular filter through the introducer sheath into the guide catheter; and removing the introducer sheath.
Claim 42
Dependent Claim
42 words
39 . The method of claim 33 wherein the introducer sheath includes a longitudinal slit and removing the introducer sheath further comprises removing the distal region of the elongated member and the vascular filter from the introducer sheath through the longitudinal slit.
Claim 43
Dependent Claim
97 words
40 . The method of claim 33 wherein: providing a vascular filter mounted on a distal region of an elongated member further comprises providing a vascular filter mounted on a distal region of an elongated member enclosed within a delivery sheath, the delivery sheath having a longitudinal perforation; and inserting the distal region of the elongated member and the vascular filter into a vessel further comprises advancing the distal region of the elongated member and the vascular filter to a desired location in the vessel, and then holding the elongated member stationary while retracting the delivery sheath.
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