US20070244517A1
Active / In Force
US
⏱️ 0.4 years remaining
Deformable flap catch mechanism for occluder device
Assignee: W.L. Gore and Associates Inc
•
Filing: 2007-03-29
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Granted: —
•
Expires: 2027-03-29
Abstract
Abstract Devices, delivery systems, and delivery techniques for an occlusion device for closure of physical anomalies, such as an atrial septal defect, a patent foramen ovale (PFO), and other septal and vascular defects are described. Specifically, an occluder with a catch member that holds the occluder in the deployed, expanded profile configuration is provided within a delivery sheath. The proximal end of the catch member includes a flap that when positioned proximal to the proximal end of the occluder holds the occluder in the expanded profile configuration. The flap is sized and formed of a material that allows the flap to deform by bending back and forth in axial and radial directions. In certain embodiments, the flap has segments divided by notches. In certain embodiments, deforming the flap in the proximal direction requires a different amount of force than deforming the flap in the distal direction.
Inventors
- 👤 David Callaghan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:30
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B2017/00575; A61B2017/00592; A61B2017/00606; A61B2017/00619; A61B2017/00623; A61B2017/00831; A61B2017/00862
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
98 words
1 . A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising: a proximal side and a distal side, and a catch system for holding the medical device in the second configuration, including a catch member with a flap at its proximal end that is bendable, wherein the flap holds the medical device in the second configuration.
Claim 2
Dependent Claim
98 words
1 . A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising: a proximal side and a distal side, and a catch system for holding the medical device in the second configuration, including a catch member with a flap at its proximal end that is bendable, wherein the flap holds the medical device in the second configuration.
Claim 3
Dependent Claim
15 words
2 . The medical device of claim 1 , wherein the flap includes two wings.
Claim 4
Dependent Claim
19 words
3 . The medical device of claim 1 , wherein the flap has a rounded shape when viewed axially.
Claim 5
Dependent Claim
18 words
4 . The medical device of claim 2 , wherein the wings are separated by cutoff V-shaped notches.
Claim 6
Dependent Claim
21 words
5 . The medical device of claim 1 , wherein the flap has a rounded surface at the radially outermost edge.
Claim 7
Dependent Claim
24 words
6 . The medical device of claim 1 , wherein the flap has a thickness to width ratio of about 1 to about 2.
Claim 8
Dependent Claim
24 words
7 . The medical device recited in claim 6 , wherein the flap has two wings with rounded surfaces at the radially outermost edge.
Claim 9
Dependent Claim
33 words
8 . The medical device of claim 1 , wherein a first force required to deform the flap for retrieval is greater than a second force required to deform the flap for deployment.
Claim 10
Dependent Claim
65 words
9 . The medical device of claim 1 , wherein the flap fits inside an interior passage of the occluder in during delivery and retrieval, and wherein the flap has a first interference with the interior passage of the occluder during delivery and a second interference with the interior passage of the occluder during retrieval, and the second interference is greater than the first interference.
Claim 11
Dependent Claim
63 words
10 . The medical device of claim 1 , wherein the catch member includes a catch body, and a first portion of the catch body extending distal from the flap has a first outer diameter and a second portion of the catch body extending proximal from the flap has a second outer diameter and the second diameter is greater than the first diameter.
Claim 12
Dependent Claim
51 words
11 . The medical device of claim 1 , wherein the catch member includes a catch body, wherein a base of the flap at a junction with the catch body on the proximal side is curved and has a greater radius than a base of the flap on the distal side.
Claim 13
Dependent Claim
155 words
12 . A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising: an axial passage along the length of the medical device; and a catch member adapted to be disposed in the passage such that the medical device can move from the reduced profile configuration to the expanded profile configuration with the catch member in the passage, including a flap on the proximal end of the catch member that is able to move in an axial direction relative to a proximal end of the medical device, such that when the medical device is in the expanded profile configuration, the flap disposed proximal to the axial passage secures the medical device in the expanded configuration.
Claim 14
Dependent Claim
155 words
12 . A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration with a reduced profile and a second configuration with an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising: an axial passage along the length of the medical device; and a catch member adapted to be disposed in the passage such that the medical device can move from the reduced profile configuration to the expanded profile configuration with the catch member in the passage, including a flap on the proximal end of the catch member that is able to move in an axial direction relative to a proximal end of the medical device, such that when the medical device is in the expanded profile configuration, the flap disposed proximal to the axial passage secures the medical device in the expanded configuration.
Claim 15
Dependent Claim
39 words
13 . The collapsible medical device of claim 12 , further comprising a first securement system for attaching the catch member to a delivery wire and a second securement system for attaching the occluder portion to a delivery catheter.
Claim 16
Dependent Claim
25 words
14 . The collapsible medical device of claim 12 , wherein the flap has a thickness to width ratio of about 1 to about 2.
Claim 17
Dependent Claim
16 words
15 . The collapsible medical device of claim 12 , wherein the flap includes two wings.
Claim 18
Dependent Claim
18 words
16 . The medical device of claim 15 , wherein the wings are separated by cutoff V-shaped notches.
Claim 19
Dependent Claim
24 words
17 . The collapsible medical device of claim 12 , wherein the flap is disposed on the proximal most portion of the catch member.
Claim 20
Dependent Claim
23 words
18 . The collapsible medical device recited of 12 , wherein the flap has an oval configuration when viewed from an axial direction.
Claim 21
Dependent Claim
23 words
18 . The collapsible medical device recited of 12 , wherein the flap has an oval configuration when viewed from an axial direction.
Claim 22
Dependent Claim
33 words
19 . The medical device of claim 12 , wherein a first force required to deform the flap for retrieval is greater than a second force required to deform the flap for deployment.
Claim 23
Dependent Claim
68 words
20 . The medical device of claim 12 , wherein the flap fits inside an interior passage of the medical device in during delivery and retrieval, and wherein the flap has a first interference with the interior passage of the medical device during delivery and a second interference with the interior passage of the medical device during retrieval, and the second interference is greater than the first interference.
Claim 24
Dependent Claim
63 words
21 . The medical device of claim 12 , wherein the catch member includes a catch body, and a first portion of the catch body extending distal from the flap has a first outer diameter and a second portion of the catch body extending proximal from the flap has a second outer diameter and the second diameter is greater than the first diameter.
Claim 25
Dependent Claim
51 words
22 . The medical device of claim 12 , wherein the catch member includes a catch body, wherein a base of the flap at a junction with the catch body on the proximal side is curved and has a greater radius than a base of the flap on the distal side.
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