US6355052B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for closure of body defect openings
Assignee: PFM Medical AG
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Filing: 1997-02-04
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Granted: 2002-03-12
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Expires: 2017-02-04
Abstract
Abstract The invention relates to a device for closure of defect openings in the human or animal body, which device, in a first state, can assume an elongate shape with a high ratio of length to transverse extent, and, in the implanted state, has a shape with a lower ratio of length to transverse extent, the device being deformable in the radial direction and comprising first arrangements with which the device, in the implanted state, supports itself elastically against the margin of the opening which is to be closed and thereby centers itself approximately within the opening. The device includes second arrangements which, in the implanted state, bear with positive engagement on opposite sides of the tissue surrounding the opening which is to be closed.
Inventors
- 👤 Malte Neuss
- 👤 Franz Freudenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/0057; A61B2017/00575; A61B2017/00597; A61B2017/00606; A61B2017/00619; A61B2017/00623
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
145 words
A device for closure of defect openings in a body, comprising: first means with which the device, in an implanted state, supports itself elastically against a margin of the opening which is to be closed and thereby centers itself approximately within the opening; and second means which, in the implanted state, bear with positive engagement on opposite sides of tissue surrounding the opening which is to be closed, wherein the device, in a first state, assumes an elongate shape with a high ratio of length to transverse extent, wherein in the implanted state the device has a shape with a lower ratio of length to transverse extent, and wherein the device is deformable and collapsible in a radial direction from the shape of its implanted state to the elongate shape of the first state by twisting the device about its axis into its collapsed state.
Claim 2
Independent Claim
145 words
A device for closure of defect openings in a body, comprising: first means with which the device, in an implanted state, supports itself elastically against a margin of the opening which is to be closed and thereby centers itself approximately within the opening; and second means which, in the implanted state, bear with positive engagement on opposite sides of tissue surrounding the opening which is to be closed, wherein the device, in a first state, assumes an elongate shape with a high ratio of length to transverse extent, wherein in the implanted state the device has a shape with a lower ratio of length to transverse extent, and wherein the device is deformable and collapsible in a radial direction from the shape of its implanted state to the elongate shape of the first state by twisting the device about its axis into its collapsed state.
Claim 3
Dependent Claim
17 words
The device according to claim 1 , wherein the second means clamp the tissue surrounding the opening.
Claim 4
Dependent Claim
15 words
The device according to claim 1 , wherein the device includes a plurality of elements.
Claim 5
Independent Claim
229 words
A device for closure of defect openings in a body, comprising: at least two elastic elements, which said device is extendable along a longitudinal axis, with each of the elements shaped to form at least two curves, and with the elements being connected to one another at at least one connection site, wherein a peak of a first curve of each element, starting from the connection site, is at a greater distance from the longitudinal axis than a bend point of a following second curve of each element, wherein the peaks of the first curves of each of the elements lie substantially in a first plane, wherein the bend points of the second curves of each of the elements lie substantially in a second plane, and wherein ends of the second curves of each of the elements lie substantially in a third plane, which planes are substantially perpendicular to the longitudinal axis of the device, and wherein the device is deformable and collapsible in a radial direction from the shape of its implanted state to the elongate shape of the first state by twisting the device about its axis into its collapsed state, and wherein in an implanted state, said bend points causes said device to support itself elastically against a margin of the opening which is to be closed and thereby centers said device approximately within the opening.
Claim 6
Independent Claim
229 words
A device for closure of defect openings in a body, comprising: at least two elastic elements, which said device is extendable along a longitudinal axis, with each of the elements shaped to form at least two curves, and with the elements being connected to one another at at least one connection site, wherein a peak of a first curve of each element, starting from the connection site, is at a greater distance from the longitudinal axis than a bend point of a following second curve of each element, wherein the peaks of the first curves of each of the elements lie substantially in a first plane, wherein the bend points of the second curves of each of the elements lie substantially in a second plane, and wherein ends of the second curves of each of the elements lie substantially in a third plane, which planes are substantially perpendicular to the longitudinal axis of the device, and wherein the device is deformable and collapsible in a radial direction from the shape of its implanted state to the elongate shape of the first state by twisting the device about its axis into its collapsed state, and wherein in an implanted state, said bend points causes said device to support itself elastically against a margin of the opening which is to be closed and thereby centers said device approximately within the opening.
Claim 7
Dependent Claim
74 words
The device according to claim 4 , wherein the device is shaped such that in an implanted state for closure of a septal defect, the device supports itself elastically against a margin of the defect opening via the bend points of the second curves, and the peaks of the first curves in the first plane and the ends of the third plane bear with positive engagement on opposite sides of tissue surrounding the opening.
Claim 8
Dependent Claim
33 words
The device according to claim 5 , wherein the tissue surrounding the opening is clamped between the peaks of the first curves in the first plane and the ends of the third plane.
Claim 9
Dependent Claim
15 words
The device according to claim 4 , wherein the elements are configured as three curves.
Claim 10
Dependent Claim
21 words
The device according to claim 7 , wherein two outer curves have a greater radius of curvature than a middle curve.
Claim 11
Dependent Claim
18 words
The device according to claim 7 , wherein two outer curves have a substantially identical radius of curvature.
Claim 12
Independent Claim
106 words
A device for closure of defect openings in a body, comprising: at least two elastic elements connected to each other at at least one connection site, the device being extendable along a longitudinal axis, wherein each of the elements has a winding with two legs connected thereto, and wherein the device is deformable and collapsible in a radial direction from the shape of its implanted state to the elongate shape of the first state by twisting the device about its axis into its collapsed state and, wherein said elastic elements support said device elastically against a margin of a defect opening which is to be closed.
Claim 13
Independent Claim
106 words
A device for closure of defect openings in a body, comprising: at least two elastic elements connected to each other at at least one connection site, the device being extendable along a longitudinal axis, wherein each of the elements has a winding with two legs connected thereto, and wherein the device is deformable and collapsible in a radial direction from the shape of its implanted state to the elongate shape of the first state by twisting the device about its axis into its collapsed state and, wherein said elastic elements support said device elastically against a margin of a defect opening which is to be closed.
Claim 14
Dependent Claim
31 words
The device according to claim 10 , wherein each element assumes the shape of a leg spring, in which the two legs are curved in the same direction as the winding.
Claim 15
Dependent Claim
32 words
The device according to claim 10 , wherein one leg is curved in the same direction as the winding, and the other leg is curved in the opposite direction to the winding.
Claim 16
Dependent Claim
24 words
The device according to claim 11 , wherein a radius of the bends of the legs is greater than a radius of the winding.
Claim 17
Dependent Claim
31 words
The device according to claim 10 , wherein the windings of each of the elements lie substantially in a plane which is substantially perpendicular to the longitudinal axis of the device.
Claim 18
Dependent Claim
16 words
The device according to claim 10 , wherein the winding of each element includes one turn.
Claim 19
Dependent Claim
83 words
The device according to claim 15 , wherein the device is shaped such that in an implanted state for closure of a septal defect, the device supports itself elastically against a margin of the defect opening which is to be closed, via an inner side of a turn of each element, at an apex of the turn facing towards the longitudinal axis of the device, and the legs of each element bear with positive engagement on opposite sides of tissue surrounding the opening.
Claim 20
Dependent Claim
21 words
The device according to claim 16 , wherein the tissue surrounding the opening is clamped between the legs of each element.
Claim 21
Dependent Claim
33 words
The device according to claim 7 , wherein the elements are connected to one another at connection sites at both ends, and both connection sites lie on the longitudinal axis of the device.
Claim 22
Dependent Claim
40 words
A device according to claim 1 , including an element which is shaped to form a closed loop with 2(n+3) curves, where n is an integer, and with curves having a concave curvature alternating with curves having a convex curvature.
Claim 23
Dependent Claim
49 words
The device according to claim 19 , wherein the device assumes an elongate form in which every second convex curve is displaced upwards in relation to an imaginary mid-plane through the device, and the remaining convex curves are displaced downwards, and the device is extended in this translational direction.
Claim 24
Dependent Claim
13 words
The device according to claim 19 , wherein n equals 1 to 5.
Claim 25
Dependent Claim
25 words
The device according to claim 19 , wherein the element has an eyelet-shaped turn at each of the peaks of the curves with convex curvature.
Claim 26
Dependent Claim
70 words
The device according to claim 19 , wherein the device is shaped such that in an implanted state for closure of a septal defect, the device supports itself elastically against a margin of the defect opening via an inner side of the concave curves, and the convex curves bear with positive engagement on a front side and a rear side, in each case alternately, of the tissue surrounding the opening.
Claim 27
Independent Claim
117 words
A device for closure of defect openings in a body, comprising: an element which is shaped to form a closed loop with at least two spaced apart windings, wherein eyelet-shaped turns are provided approximately in the middle of loop sections between two adjacent windings, with the diameter of the windings being greater than the diameter of the eyelet-shaped turns, and wherein the device is deformable and collapsible in a radial direction from the shape of its implanted state to the elongate shape of the first state by twisting the device about its axis into its collapsed state and, wherein said windings support said device elastically against a margin of a defect opening which is to be closed.
Claim 28
Independent Claim
117 words
A device for closure of defect openings in a body, comprising: an element which is shaped to form a closed loop with at least two spaced apart windings, wherein eyelet-shaped turns are provided approximately in the middle of loop sections between two adjacent windings, with the diameter of the windings being greater than the diameter of the eyelet-shaped turns, and wherein the device is deformable and collapsible in a radial direction from the shape of its implanted state to the elongate shape of the first state by twisting the device about its axis into its collapsed state and, wherein said windings support said device elastically against a margin of a defect opening which is to be closed.
Claim 29
Dependent Claim
38 words
The device according to claim 24 , wherein eyelet-shaped turns are provided substantially in the middle of loop sections between two adjacent windings, with the diameter of the windings being greater than the diameter of the eyelet-shaped turns.
Claim 30
Dependent Claim
47 words
The device according to claim 24 , wherein the device assumes an elongate shape in which every second winding is displaced upwards in relation to an imaginary mid-plane through the device, and the remaining windings are displaced downwards, and the device is extended in this translational direction.
Claim 31
Dependent Claim
82 words
The device according to claim 24 , wherein the device is shaped such that in an implanted state for closure of a septal defect, the device supports itself elastically against a margin of the defect opening which is to be closed, via an inner side of each winding, at a summit of the winding facing towards a mid-point of the device, and alternating loop sections between two adjacent windings bear with positive engagement on opposite sides of the tissue surrounding the opening.
Claim 32
Dependent Claim
16 words
The device according to claim 3 , wherein the elements are made from a resilient material.
Claim 33
Dependent Claim
27 words
The device according to claim 28 , wherein the elements are selected from the group consisting of wire, a wire strand, a wire coil or a tube.
Claim 34
Dependent Claim
23 words
The device according to claim 28 , wherein the elements are made of wire with a round, semicircular, oval, rectangular or square cross-section.
Claim 35
Dependent Claim
12 words
The device according to claim 30 wherein the wire cross-section is variable.
Claim 36
Dependent Claim
25 words
The device according to claim 1 , wherein the device is covered on at least one side with a fabric, a mesh or a foil.
Claim 37
Dependent Claim
16 words
The device according to claim 4 , including an arrangement for positioning or repositioning the device.
Claim 38
Dependent Claim
23 words
The device according to claim 22 , wherein the eyelet-shaped turns at the same time act as an arrangement for positioning or repositioning.
Claim 39
Dependent Claim
24 words
The device according to claim 33 , wherein the arrangement for positioning or repositioning the device is arranged at one of the connection sites.
Claim 40
Dependent Claim
24 words
The device according to claim 19 , wherein an arrangement for positioning or repositioning is arranged at a peak of a first convex curve.
Claim 41
Dependent Claim
53 words
The device according to claim 36 , wherein a second arrangement for positioning or repositioning is arranged at a peak of a second convex curve which is at a maximum distance from the first convex curve and, in an implanted state of the device, lies on the same side relative to a septum.
Claim 42
Dependent Claim
23 words
The device according to claim 37 , wherein both positioning arrangements are configured such that they are jointly grippable by a repositioning device.
Claim 43
Dependent Claim
13 words
The device according to claim 1 , wherein the device has radiopaque markings.
Claim 44
Dependent Claim
33 words
The device according to claim 10 , wherein the elements are connected to one another at connection sites at both ends, and both connection sites lie on the longitudinal axis of the device.
Claim 45
Dependent Claim
17 words
The device according to claim 7 , wherein two outer curves have a different radius of curvature.
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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) | 2005-03-11 | 2005-09-10 | 2006-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-11 | 2009-09-10 | 2010-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-11 | 2013-09-10 | 2014-03-12 | $7700.00 | Window Closed / Lapsed |