US20030045893A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clip apparatus for closing septal defects and methods of use
Assignee: Ovalis Inc
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Filing: 2001-09-06
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Granted: —
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Expires: 2021-09-06
Abstract
Abstract A device for closing a septal defect, such as a patent foramen ovale, includes a clip formed from a superelastic material that is inserted into a septum wall of a heart. The clip is advanced through a patient's vasculature, e.g., within a delivery apparatus, until the clip is disposed within a first chamber adjacent the septal defect. Tines of the clip are directed through a flap of tissue of the septal defect until the tines of the clip are disposed within a second opposing chamber. The clip then transforms into its relaxed state, wherein the tines of the clip engage with a surface of the second chamber, thereby substantially closing the septal opening.
Inventors
- 👤 Richard Ginn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:18
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B17/064; A61B17/0644; A61B2017/00575; A61B2017/00831; A61B2017/00867; A61B17/04; A61B17/06; A61B2017/06052; A61B2017/0641; A61B2017/0647
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
66 words
1 . An apparatus for closing a septal defect, comprising: a clip formed from an elastic material having at least two penetrating tines and an opposing retaining end, the clip being biased so as to project the at least two penetrating tines distal to the opposing retaining end, wherein when the bias is removed, the at least two penetrating tines move laterally apart from one another.
Claim 2
Dependent Claim
66 words
1 . An apparatus for closing a septal defect, comprising: a clip formed from an elastic material having at least two penetrating tines and an opposing retaining end, the clip being biased so as to project the at least two penetrating tines distal to the opposing retaining end, wherein when the bias is removed, the at least two penetrating tines move laterally apart from one another.
Claim 3
Dependent Claim
17 words
2 . The apparatus of claim 1 , wherein the clip is formed from a superelastic material.
Claim 4
Dependent Claim
18 words
3 . The apparatus of claim 1 , wherein the clip is formed from a shape memory alloy.
Claim 5
Dependent Claim
16 words
4 . The apparatus of claim 1 , wherein the clip is formed from stainless steel.
Claim 6
Dependent Claim
19 words
5 . The apparatus of claim 1 , wherein the clip, in a stressed state, has a V shape.
Claim 7
Dependent Claim
19 words
6 . The apparatus of claim 1 , wherein the clip, in a relaxed state, has a W shape.
Claim 8
Dependent Claim
19 words
7 . The apparatus of claim 1 , wherein the clip, in a stressed state, has a U shape.
Claim 9
Dependent Claim
31 words
8 . The apparatus of claim 1 , wherein the clip is directed into a flap of tissue partially attached to a septum wall of a heart in the stressed state.
Claim 10
Dependent Claim
43 words
9 . The apparatus of claim 1 , wherein after the clip is directed into the septal defect, the clip transforms to a relaxed state wherein at least a portion of the tines lie substantially flat against a septum wall of the heart.
Claim 11
Dependent Claim
96 words
10 . The apparatus of claim 1 , further comprising: a tubular member comprising proximal and distal ends and a lumen therebetween, the distal end having a size for insertion into a blood vessel, the clip being carried within the lumen such that the penetrating tines are disposed distally to the retaining end; and a pusher member slidably disposed within the lumen, the pusher member comprising a distal end disposed proximate the retaining end of the clip, the pusher member being moveable axially relative to the tubular member for ejecting the clip distally from the lumen.
Claim 12
Dependent Claim
30 words
11 . The apparatus of claim 10 , further comprising an actuator on the proximal end of the tubular member for advancing the pusher member relative to the tubular member.
Claim 13
Dependent Claim
26 words
12 . The apparatus of claim 10 , further comprising at least one axially disposed clip-retaining groove located in an inner surface of the tubular member.
Claim 14
Dependent Claim
29 words
13 . The apparatus of claim 10 , further comprising a notch located in the distal end of the pusher member for engaging the retaining end of the clip.
Claim 15
Dependent Claim
26 words
14 . The apparatus of claim 10 , further comprising an imaging device comprising an imaging element associated with the distal end of the tubular member.
Claim 16
Dependent Claim
23 words
15 . The apparatus of claim 14 , wherein the imaging device comprises an angioscope received within a lumen of the tubular member.
Claim 17
Dependent Claim
29 words
16 . The apparatus of claim 14 , wherein the imaging device comprises an elongate member comprising a distal end having a size for introduction into a body lumen.
Claim 18
Dependent Claim
118 words
17 . A method of closing a septal defect within a patient's heart comprising the steps of: providing a clip having at least two penetrating tines and an opposing retaining end; advancing the clip, in a biased state, through the patient's vasculature until the clip is disposed within the first chamber of the heart adjacent to the septal opening; directing the at least two penetrating tines through a flap of tissue to expose the at least two penetrating tines to the second chamber of the heart; moving the tines of the clip in laterally opposing directions so as to bring the flap of tissue into engagement with the septum wall to at least partially close the septal opening.
Claim 19
Dependent Claim
118 words
17 . A method of closing a septal defect within a patient's heart comprising the steps of: providing a clip having at least two penetrating tines and an opposing retaining end; advancing the clip, in a biased state, through the patient's vasculature until the clip is disposed within the first chamber of the heart adjacent to the septal opening; directing the at least two penetrating tines through a flap of tissue to expose the at least two penetrating tines to the second chamber of the heart; moving the tines of the clip in laterally opposing directions so as to bring the flap of tissue into engagement with the septum wall to at least partially close the septal opening.
Claim 20
Dependent Claim
34 words
18 . The method according to claim 17 , wherein the tines of the clip are moved by removing the biasing force so as to permit the clip to transition to a relaxed state.
Claim 21
Dependent Claim
66 words
19 . The method according to claim 18 , wherein the clip is disposed within a distal end of a delivery apparatus comprising a catheter and a pusher member slidably coupled to one another, and wherein the step of advancing the clip comprises advancing the distal end of the delivery apparatus into the first chamber until the distal end is disposed adjacent to the septal defect.
Claim 22
Dependent Claim
43 words
20 . The method of claim 19 , wherein the step of directing the first end of the clip through the flap of tissue comprises advancing the pusher member distally relative to the catheter, thereby ejecting the clip from within the delivery apparatus.
Claim 23
Dependent Claim
22 words
21 . The method of claim 20 , wherein the biasing force is removed by ejecting the clip from the delivery apparatus.
Claim 24
Dependent Claim
15 words
22 . The apparatus of claim 1 , wherein the clip is formed from NITINOL.
Claim 25
Dependent Claim
19 words
23 . The method of claim 17 , further comprising the step of imaging a portion of the heart.
Claim 26
Dependent Claim
67 words
24 . An apparatus for closing a septal defect, comprising: A clip formed from an elastic material having a single penetrating tine and an opposing retaining end, the clip being biased so as to project the single tine distal to the opposing retaining end, wherein when the bias is removed, the clip transforms into geometric shape selected from the group consisting of “V”, “U”, “S”, and “L”.
Claim 27
Dependent Claim
67 words
24 . An apparatus for closing a septal defect, comprising: A clip formed from an elastic material having a single penetrating tine and an opposing retaining end, the clip being biased so as to project the single tine distal to the opposing retaining end, wherein when the bias is removed, the clip transforms into geometric shape selected from the group consisting of “V”, “U”, “S”, and “L”.
Claim 28
Dependent Claim
17 words
25 . The apparatus of claim 24 , wherein the clip is formed from a superelastic material.
Claim 29
Dependent Claim
18 words
26 . The apparatus of claim 24 , wherein the clip is formed from a shape memory alloy.
Claim 30
Dependent Claim
16 words
27 . The apparatus of claim 24 , wherein the clip is formed from stainless steel.
Claim 31
Dependent Claim
20 words
28 . The apparatus of claim 24 , further comprising a head attached to the retaining end of the clip.
References Cited (Backward Citations)
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