Patent US20030100919A1 successfully refreshed from Google Patents.
US20030100919A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vascular device for emboli, thrombus and foreign body removal and methods of use
Assignee: Incept LLC
•
Filing: 2002-11-22
•
Granted: —
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Expires: 2022-11-22
Abstract
Abstract Apparatus and methods are provided for use in filtering emboli from a vessel and/or performing thrombectomy and embolectomy, wherein a vascular device comprises one or more support hoops connected near a distal end of a guide wire, each support hoop having an articulation region, 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
- 👤 L. Hopkins
- 👤 Farhad Khosravi
- 👤 Amr Salahieh
- 👤 Jackson Demond
- 👤 Jonah Lepak
- 👤 Stephen Ramee
- 👤 Jeff Krolik
- 👤 Richard Renati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:29
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/0105; A61F2/012; A61B; A61B17/00; A61B17/00234; A61B2017/00287; 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; A61M25/0067; A61M25/0068; A61M25/0069
Claims Analysis
Total Claims: 72
Claim 1
Independent Claim
69 words
1 . Apparatus suitable for filtering emboli or performing thrombectomy, embolectomy or foreign body removal, comprising: an elongated member having a distal region; a first support hoop attached to the distal region, the first support hoop having an articulation region interposed between curved regions; and a blood permeable sac affixed to the first support hoop so that the first support hoop forms a mouth of the blood permeable sac.
Claim 2
Dependent Claim
69 words
1 . Apparatus suitable for filtering emboli or performing thrombectomy, embolectomy or foreign body removal, comprising: an elongated member having a distal region; a first support hoop attached to the distal region, the first support hoop having an articulation region interposed between curved regions; and a blood permeable sac affixed to the first support hoop so that the first 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 first support hoop-comprises a super-elastic material.
Claim 8
Dependent Claim
16 words
7 . The apparatus of claim 6 , wherein the super-elastic material comprises a nickel-titanium alloy.
Claim 9
Dependent Claim
29 words
8 . The apparatus of claim 1 , wherein the first support hoop comprises a wire having a thickness that tapers to a minimum thickness at the articulation region.
Claim 10
Dependent Claim
46 words
9 . The apparatus of claim 1 , wherein the apparatus has a deployed state, wherein the first 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
27 words
10 . The apparatus of claim 9 , wherein the first support hoop is folded at the articulation region when the apparatus is in the delivery state.
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, thereby preventing 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
27 words
14 . 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 16
Dependent Claim
28 words
15 . The apparatus of claim 1 wherein the first support hoop includes one or more side turns that stabilize and orient the apparatus in the deployed state.
Claim 17
Dependent Claim
16 words
16 . The apparatus of claim 1 wherein the elongated member serves as a guide wire.
Claim 18
Dependent Claim
47 words
17 . The apparatus of claim 1 further comprising: a nose cone disposed on the distal region of the elongated member distal to the first support hoop; and a delivery sheath having a first lumen for accepting the elongated member, first support hoop and blood permeable sac.
Claim 19
Dependent Claim
22 words
18 . The apparatus of claim 17 , wherein the delivery sheath further comprises a second lumen for accepting a guide wire.
Claim 20
Dependent Claim
35 words
19 . The apparatus of claim 18 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 21
Dependent Claim
35 words
20 . The apparatus of claim 18 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 22
Dependent Claim
12 words
21 . The apparatus of claim 1 further comprising a balloon catheter.
Claim 23
Dependent Claim
36 words
22 . The apparatus of claim 18 , wherein the delivery sheath further comprises a guide tube attached to an exterior surface of the delivery sheath, the guide tube having a portion defining the second lumen.
Claim 24
Dependent Claim
18 words
23 . The apparatus of claim 17 further comprising a guide wire in communication with the delivery sheath.
Claim 25
Dependent Claim
26 words
24 . The apparatus of claim 23 , wherein a distal end of the guide wire is attached to a proximal end of the delivery sheath.
Claim 26
Dependent Claim
26 words
25 . The apparatus of claim 1 , wherein the articulation region comprises a gap, the gap bridged by a portion of the blood permeable sac.
Claim 27
Dependent Claim
20 words
26 . The apparatus of claim 1 , wherein the blood permeable sac is further affixed to the elongated member.
Claim 28
Dependent Claim
41 words
27 . 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 29
Dependent Claim
22 words
28 . The apparatus of claim 13 , wherein the radiopaque feature comprises a radiopaque wire wrapped around the first support hoop.
Claim 30
Dependent Claim
24 words
29 . The apparatus of claim 1 , wherein the blood permeable sac has a length and a diameter that tapers along the length.
Claim 31
Dependent Claim
20 words
30 . The apparatus of claim 25 , wherein the proximal end of the blood permeable sac comprises a lumen.
Claim 32
Dependent Claim
22 words
31 . The apparatus of claim 30 , wherein the lumen is configured to receive the curved regions and bridge the gap.
Claim 33
Dependent Claim
21 words
32 . The apparatus of claim 25 , wherein the curved regions of the first support hoop comprise an elastic material.
Claim 34
Dependent Claim
24 words
33 . The apparatus of claim 1 , wherein the first support hoop is attached to a sheath slidably disposed on the elongated member.
Claim 35
Dependent Claim
23 words
34 . The apparatus of claim 33 further comprising means for constraining longitudinal motion of the sheath with respect to the elongated member.
Claim 36
Dependent Claim
32 words
35 . The apparatus of claim 1 further comprising a second support hoop disposed circumferentially adjacent to the first support hoop, the blood permeable sac further affixed to the second support hoop.
Claim 37
Dependent Claim
38 words
36 . The apparatus of claim 1 further comprising: a second support hoop coupled to the distal region and spaced apart longitudinally from the first support hoop, the blood permeable sac further affixed to the second support hoop.
Claim 38
Dependent Claim
29 words
37 . The apparatus of claim 36 , wherein the second support hoop comprises a wire having a thickness that tapers to a minimum thickness at an articulation region.
Claim 39
Dependent Claim
24 words
38 . The apparatus of claim 36 , wherein the blood permeable sac has a length and a diameter that tapers along the length.
Claim 40
Dependent Claim
20 words
39 . The apparatus of claim 40 , wherein the second support hoop is smaller than the first support hoop.
Claim 41
Dependent Claim
31 words
40 . The apparatus of claim 36 , wherein the second support hoop comprises an articulation region having a gap, the gap bridged by a portion of the blood permeable sac.
Claim 42
Dependent Claim
26 words
41 . The apparatus of claim 36 , wherein the first and second support hoops are attached to a sheath slidably disposed on the elongated member.
Claim 43
Dependent Claim
23 words
42 . The apparatus of claim 41 further comprising means for constraining longitudinal motion of the sheath with respect to the elongated member.
Claim 44
Dependent Claim
54 words
43 . The apparatus of claim 1 further comprising: a delivery sheath having a lumen for accepting the elongated member, support hoop and blood permeable sac; a retrieval sheath having a flared end region and a lumen for accepting the delivery sheath; and a guide catheter having a lumen for accepting the retrieval sheath.
Claim 45
Dependent Claim
45 words
44 . The apparatus of claim 43 , 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 the delivery sheath.
Claim 46
Dependent Claim
27 words
45 . The apparatus of claim 44 , wherein the first support hoop folds at the articulation region when the apparatus is contracted to the delivery state.
Claim 47
Dependent Claim
26 words
46 . The apparatus of claim 44 , wherein the mouth of the blood permeable sac closes when the apparatus is contracted to the delivery state.
Claim 48
Dependent Claim
17 words
47 . The apparatus of claim 43 , wherein the flared end region comprises a radiopaque feature.
Claim 49
Dependent Claim
48 words
48 . The apparatus of claim 43 , wherein the retrieval sheath has a deployed state, wherein the flared end region extends distal of the guide catheter and is expanded, and a contracted state, wherein the flared end region is collapsed to fit within the guide catheter lumen.
Claim 50
Dependent Claim
42 words
49 . The apparatus of claim 48 , wherein the retrieval sheath is retracted from the deployed state to the contracted state when a radiopaque feature on the flared end region is aligned with a radiopaque feature on the blood permeable sac.
Claim 51
Dependent Claim
44 words
50 . The apparatus of claim 48 , wherein the flared end region contracts the portion of the vascular device remaining in the deployed state within the guide catheter lumen when the retrieval sheath is retracted from the deployed state to the contracted state.
Claim 52
Dependent Claim
17 words
51 . The apparatus of claim 43 , wherein the flared end region comprises an elastomeric material.
Claim 53
Dependent Claim
48 words
52 . The apparatus of claim 1 further comprising: a delivery sheath having a lumen for accepting the elongated member, support hoop and blood permeable sac, and having an atraumatic expander; and a retrieval sheath having an expandable end region and a lumen for accepting the delivery sheath.
Claim 54
Dependent Claim
68 words
53 . The apparatus of claim 1 further comprising: a handle having a collet for selectively grasping and releasing the elongated member; and a lumen flushing section coupled to the handle to allow translation and rotation therebetween, the lumen flushing section having a side port in fluid communication with the lumen of the delivery sheath and configured to allow the elongated member to pass therethrough to the handle.
Claim 55
Dependent Claim
84 words
54 . The apparatus of claim 53 , wherein the apparatus has a delivery state, wherein the handle is translated longitudinally to a proximal-most position relative to the lumen flushing section, and the first support hoop is retracted within the delivery sheath, and a deployed state wherein the handle is translated longitudinally to a distal-most position adjacent the lumen flushing section, wherein the first support hoop extends beyond a distal end of the delivery sheath and engages an interior wall of a patient's vessel.
Claim 56
Dependent Claim
66 words
55 . The apparatus of claim 1 further comprising: a handle configured to selectively grasp and release the elongated member; and a fluid port section coupled to the handle to allow translation and rotation therebetween, the fluid port section having a side port in fluid communication with the lumen of the delivery sheath and configured to allow the elongated member to pass therethrough to the handle.
Claim 57
Dependent Claim
84 words
56 . The apparatus of claim 55 , wherein the apparatus has a delivery state, wherein the handle is translated longitudinally to a proximal-most position relative to the fluid port section, and the first support hoop is retracted within the delivery sheath, and a deployed state wherein the handle is translated longitudinally to a distal-most position adjacent the fluid port section, wherein the first support hoop extends beyond a distal end of the delivery sheath and engages an interior wall of a patient's vessel.
Claim 58
Dependent Claim
34 words
57 . The apparatus of claim 1 further comprising: a thrombus removal element disposed proximal of the first support hoop, the thrombus removal element movable in a proximal direction independent of the elongated member.
Claim 59
Dependent Claim
22 words
58 . The apparatus of claim 57 , wherein the thrombus removal element comprises a third support hoop with blood permeable sac.
Claim 60
Dependent Claim
20 words
59 . The apparatus of claim 58 , wherein the third support hoop is slidably disposed on the elongated member.
Claim 61
Dependent Claim
24 words
60 . The apparatus of claim 57 , wherein the removal element is configured to excise or ablate thrombus from within a patient's vessel.
Claim 62
Dependent Claim
48 words
61 . The apparatus of claim 57 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, first support hoop, and blood permeable sac.
Claim 63
Dependent Claim
22 words
62 . The apparatus of claim 1 , wherein the blood permeable sac comprises a plurality of pores formed by laser drilling.
Claim 64
Dependent Claim
27 words
63 . The apparatus of claim 62 , wherein each one of the plurality of pores has a diameter in a range of 20 to 400 microns.
Claim 65
Dependent Claim
19 words
64 . The apparatus of claim 1 , wherein the blood permeable sac comprises a plurality of elliptical pores.
Claim 66
Dependent Claim
15 words
65 . The apparatus of claim 2 , wherein the biocompatible material is substantially non-thrombogenic.
Claim 67
Dependent Claim
42 words
66 . The apparatus of claim 1 , wherein the blood permeable sac comprises a plurality of pores provided in sufficient density, such that proximal pores remain open when distal pores become occluded, thereby ensuring continuous blood flow through a patient's vessel.
Claim 68
Dependent Claim
25 words
67 . The apparatus of claim 29 , wherein tapering the blood permeable sac reduces bunching of the sac during retrieval within a delivery sheath.
Claim 69
Dependent Claim
21 words
68 . The apparatus of claim 29 , wherein tapering the blood permeable sac reduces a delivery profile of the apparatus.
Claim 70
Dependent Claim
26 words
69 . The apparatus of claim 29 , wherein tapering the blood permeable sac reduces a risk of snagging the sac on a stent during retrieval.
Claim 71
Dependent Claim
18 words
70 . The apparatus of claim 6 , wherein the super-elastic material comprises a spring tempered stainless steel.
Claim 72
Dependent Claim
23 words
71 . The apparatus of claim 2 , wherein the biocompatible material is formed into the blood permeable sac by a thermoforming process.
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