US6245087B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable expansion frame system for deploying medical devices and methods of use
Assignee: Edwards Lifesciences Corp
•
Filing: 1999-08-03
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Granted: 2001-06-12
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Expires: 2019-08-03
Abstract
Abstract An expansion frame system for deploying medical devices in a patient's body cavity. The system typically includes an inner wire disposed within a lumen of an outer wire. Distal ends of the inner and outer wires are attached to a substantially circular frame at first and second points. During use, the outer wire is displaced relative to the inner wire, causing the circular frame to rotate about an axis perpendicular to the line defined by the first and second points. Medical devices, such as a filter, a stent, an occluder or a manometer, can be mounted on the circular frame. The diameter of the expansion frame can be varied to achieve optimal contact with the luminal wall of the body cavity. Methods of using the expansion frame system for temporary or permanent placement of a medical device is disclosed.
Inventors
- 👤 Bruce Addis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:45
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/013; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/22; A61B17/221; A61B2017/1205; A61B2017/2215; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0008; A61F2230/0063; A61F2230/0073; A61F2230/008
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
135 words
A variable diameter expansion frame, comprising: an outer wire having a proximal end, a distal end, and a lumen therebetween; an inner wire having a proximal end and a distal end, the inner wire being disposed within the lumen of the outer wire, the inner wire slideable relative to the outer wire; and a substantially circular frame attached at a first circumferential point to the distal end of the outer wire, and attached at a second circumferential point to the distal end of the inner wire, the first circumferential point being disposed approximately 180° from the second circumferential point, wherein, during use, the outer wire is displaced relative to the inner wire, and the circular frame is caused to rotate about an axis perpendicular to the line defined by the first and second circumferential points.
Claim 2
Dependent Claim
135 words
A variable diameter expansion frame, comprising: an outer wire having a proximal end, a distal end, and a lumen therebetween; an inner wire having a proximal end and a distal end, the inner wire being disposed within the lumen of the outer wire, the inner wire slideable relative to the outer wire; and a substantially circular frame attached at a first circumferential point to the distal end of the outer wire, and attached at a second circumferential point to the distal end of the inner wire, the first circumferential point being disposed approximately 180° from the second circumferential point, wherein, during use, the outer wire is displaced relative to the inner wire, and the circular frame is caused to rotate about an axis perpendicular to the line defined by the first and second circumferential points.
Claim 3
Dependent Claim
34 words
The expansion frame of claim 1 , wherein the outer wire has a hole through its wall near the distal end, and wherein the inner wire passes through the hole in the outer wire.
Claim 4
Dependent Claim
40 words
The expansion frame of claim 2 , further comprising a force biasing element disposed about the distal end of the inner wire and biasing the second circumferential point of the circular frame away from the hole of the outer wire.
Claim 5
Dependent Claim
15 words
The expansion frame of claim 3 , wherein the force biasing element is a spring.
Claim 6
Dependent Claim
17 words
The expansion frame of claim 1 , further comprising a filter mesh disposed about the circular frame.
Claim 7
Dependent Claim
17 words
The expansion frame of claim 1 , further comprising an impermeable membrane disposed about the circular frame.
Claim 8
Dependent Claim
39 words
The expansion frame of claim 1 , further comprising a syringe having a barrel and a plunger, wherein the proximal end of the inner wire passes through a distal surface of the plunger and is mounted on the barrel.
Claim 9
Dependent Claim
20 words
The expansion frame of claim 7 , wherein the outer wire is mounted on the distal surface of the plunger.
Claim 10
Dependent Claim
23 words
The expansion frame of claim 7 , further comprising a locking mechanism capable of fixing the displacement between the plunger and the barrel.
Claim 11
Dependent Claim
26 words
The expansion frame of claim 1 , further comprising an angioplasty catheter adapted to receive and be guided by the outer wire of the expansion frame.
Claim 12
Dependent Claim
27 words
The expansion frame of claim 1 , further comprising an stent deployment catheter adapted to receive and be guided by the outer wire of the expansion frame.
Claim 13
Dependent Claim
26 words
The expansion frame of claim 1 , further comprising an atherectomy catheter adapted to receive and be guided by the outer wire of the expansion frame.
Claim 14
Dependent Claim
26 words
The expansion frame of claim 1 , further comprising an imaging catheter adapted to receive and be guided by the outer wire of the expansion frame.
Claim 15
Independent Claim
147 words
A method for deploying a medial device within a body, comprising the steps of: providing an expansion frame comprising an outer wire, an inner wire, and a substantially circular frame attached at a first point to a distal end of the outer wire, and attached at a second point to a distal end of the inner wire, the inner wire being disposed within the lumen of the outer wire, the inner wire slideable relative to the outer wire; introducing the expansion frame into a lumen within the body of a patient; advancing the expansion frame to a region of interest; and retracting a proximal end of the outer wire relative to a proximal end of the inner wire, wherein the circular frame rotates about an axis perpendicular to the line defined by the first and second point, and the circular frame thereby circumferentially engages the luminal wall.
Claim 16
Independent Claim
147 words
A method for deploying a medial device within a body, comprising the steps of: providing an expansion frame comprising an outer wire, an inner wire, and a substantially circular frame attached at a first point to a distal end of the outer wire, and attached at a second point to a distal end of the inner wire, the inner wire being disposed within the lumen of the outer wire, the inner wire slideable relative to the outer wire; introducing the expansion frame into a lumen within the body of a patient; advancing the expansion frame to a region of interest; and retracting a proximal end of the outer wire relative to a proximal end of the inner wire, wherein the circular frame rotates about an axis perpendicular to the line defined by the first and second point, and the circular frame thereby circumferentially engages the luminal wall.
Claim 17
Dependent Claim
20 words
The method of claim 14 , wherein the expansion frame further comprises a filter mesh disposed about the circular frame.
Claim 18
Dependent Claim
20 words
The method of claim 14 , wherein the expansion frame further comprises an impermeable membrane disposed about the circular frame.
Claim 19
Dependent Claim
12 words
The method of claim 14 , wherein the lumen is a vessel.
Claim 20
Dependent Claim
12 words
The method of claim 17 , wherein the vessel is an artery.
Claim 21
Dependent Claim
157 words
An expansion frame system, comprising: a cannula having a proximal end, a distal end, a first lumen therebetween, and a side port communicating with a second lumen which extends to the distal end of the cannula; and a variable diameter expansion frame comprising an outer wire having a proximal end and a distal end, an inner wire having a proximal end and a distal end, the inner wire being disposed within the lumen of the outer wire, the inner wire slideable relative to the outer wire, and a substantially circular frame attached at a first circumferential point to the distal end of the outer wire, and attached at a second circumferential point to the distal end of the inner wire, the first circumferential point being disposed approximately 180° from the second circumferential point, wherein, during use, the expansion frame is advanced through the side port of the cannula and is deployed within the lumen of a vessel.
Claim 22
Dependent Claim
157 words
An expansion frame system, comprising: a cannula having a proximal end, a distal end, a first lumen therebetween, and a side port communicating with a second lumen which extends to the distal end of the cannula; and a variable diameter expansion frame comprising an outer wire having a proximal end and a distal end, an inner wire having a proximal end and a distal end, the inner wire being disposed within the lumen of the outer wire, the inner wire slideable relative to the outer wire, and a substantially circular frame attached at a first circumferential point to the distal end of the outer wire, and attached at a second circumferential point to the distal end of the inner wire, the first circumferential point being disposed approximately 180° from the second circumferential point, wherein, during use, the expansion frame is advanced through the side port of the cannula and is deployed within the lumen of a vessel.
Claim 23
Dependent Claim
12 words
The method of claim 18 , wherein the artery is an aorta.
Claim 24
Dependent Claim
13 words
The method of claim 18 , wherein the artery is a carotid artery.
Claim 25
Dependent Claim
20 words
The method of claim 14 , further comprising the step of performing an endoluminal procedure upstream of the expansion frame.
Claim 26
Dependent Claim
20 words
The method of claim 22 , wherein embolic materials are dislodged during the procedure and captured by the expansion frame.
Claim 27
Dependent Claim
18 words
The method of claim 14 , wherein the expansion frame is introduced through an incision by direct access.
Claim 28
Dependent Claim
13 words
The method of claim 14 , wherein the expansion frame is introduced percutaneously.
Claim 29
Dependent Claim
16 words
The method of claim 14 , wherein a radiopaque marker is mounted on the circular frame.
Claim 30
Dependent Claim
19 words
The method of claim 14 , further comprising the step of verifying the position of the frame using fluoroscopy.
Claim 31
Dependent Claim
21 words
The method of claim 22 , wherein the endoluminal procedure is performed by advancing an endoluminal instrument over the outer wire.
Claim 32
Dependent Claim
28 words
The method of claim 28 , wherein the endoluminal instrument is an angioplasty catheter adapted to receive and be guided by the outer wire of the expansion frame.
Claim 33
Dependent Claim
29 words
The method of claim 28 , wherein the endoluminal instrument is a stent deployment catheter adapted to receive and be guided by the outer wire of the expansion frame.
Claim 34
Dependent Claim
28 words
The method of claim 28 , wherein the endoluminal instrument is an atherectomy catheter adapted to receive and be guided by the outer wire of the expansion frame.
Claim 35
Dependent Claim
28 words
The method of claim 28 , wherein the endoluminal instrument is an imaging catheter adapted to receive and be guided by the outer wire of the expansion frame.
Claim 36
Dependent Claim
36 words
The method of claim 30 , wherein the stent deployment catheter comprises: a self-expanding stent disposed about the outer wire; and a sheath disposed about the stent, wherein the sheath is retracted to release the stent.
Claim 37
Dependent Claim
25 words
The method of claim 17 , wherein the step of introducing the expansion frame into the vessel comprises advancing the expansion frame through an introducer.
Claim 38
Dependent Claim
12 words
The method of claim 34 , wherein the introducer comprises a cannula.
Claim 39
Dependent Claim
15 words
The method of claim 34 , wherein the introducer is a port on a cannula.
Claim 40
Dependent Claim
17 words
The method of claim 36 , wherein the port is separate from a lumen of the cannula.
Claim 41
Dependent Claim
43 words
The expansion frame of claim 19 , wherein during use, the outer wire is displaced relative to the inner wire and the circular frame is caused to rotate about an axis perpendicular to the line defined by the first and second circumferential points.
Claim 42
Dependent Claim
16 words
The expansion frame of claim 19 , wherein the second lumen communicates with the first lumen.
Claim 43
Dependent Claim
14 words
The expansion frame of claim 19 , wherein the cannula is an arterial cannula.
Claim 44
Dependent Claim
16 words
The expansion frame of claim 19 , wherein the side port further comprises a hemostatic valve.
Claim 45
Dependent Claim
26 words
The expansion frame of claim 19 , wherein the second lumen is separate from the first lumen and communicates at a distal end with a port.
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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) | 2004-06-11 | 2004-12-11 | 2005-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-06-11 | 2008-12-11 | 2009-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-06-11 | 2012-12-11 | 2013-06-12 | $7700.00 | Window Closed / Lapsed |