US6083239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compliant framework and methods of use
Assignee: Edwards Lifesciences Corp
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Filing: 1998-11-24
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Granted: 2000-07-04
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Expires: 2018-11-24
Abstract
Abstract An expansion mechanism which includes an elongate instrument and a plurality of struts arranged around the elongate instrument provides radial expansion of a medical device. Each strut has a first end pivotally connected to the elongate instrument and a second strut which expands radially outward. Each strut further carries a flexible line which has a proximal end and a distal end. The distal end of each line passes beyond the second end of the strut which carries it and is attached to the strut immediately adjacent the strut which carries it. Methods of using such an expansion mechanism are also disclosed, particularly to provide deployment of medical devices within a patient's blood vascular system.
Inventors
- 👤 Bruce Addis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:14
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12027; A61B17/1204; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12136; A61F; A61F2/00; A61F2/01; A61F2/013; A61B2017/00535; A61B2017/00557; A61B17/22; A61B2017/22051; A61B2017/22062; A61B2017/22065; A61B2017/22067; A61B2017/22069; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0063; A61F2230/0067
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
120 words
An expansion mechanism for radial expansion of a medical device, comprising: an elongate instrument; a plurality of struts arranged circumferentially around the elongate instrument, each strut having a first end pivotally connected to the elongate instrument and a second end which expands radially outward; and a plurality of flexible elongate lines, one carried by each strut, each line having a proximal end and a distal end which slideably engages the second end of the strut which carries it, the distal end of each line being attached to the strut immediately adjacent the strut which carries it each line passing proximally beyond the first of the strut which carries it, whereby distal advancement of then plurality flexible elongate lines effects struts.
Claim 2
Dependent Claim
120 words
An expansion mechanism for radial expansion of a medical device, comprising: an elongate instrument; a plurality of struts arranged circumferentially around the elongate instrument, each strut having a first end pivotally connected to the elongate instrument and a second end which expands radially outward; and a plurality of flexible elongate lines, one carried by each strut, each line having a proximal end and a distal end which slideably engages the second end of the strut which carries it, the distal end of each line being attached to the strut immediately adjacent the strut which carries it each line passing proximally beyond the first of the strut which carries it, whereby distal advancement of then plurality flexible elongate lines effects struts.
Claim 3
Dependent Claim
13 words
The expansion mechanism of claim 1, wherein the elongate instrument comprises a cannula.
Claim 4
Dependent Claim
18 words
The expansion mechanism of claim 2, wherein the struts are mounted on a distal end of the cannula.
Claim 5
Dependent Claim
29 words
The expansion mechanism of claim 1, wherein each strut comprises a tubular member having a lumen and each flexible line is carried by the lumen of each tubular strut.
Claim 6
Dependent Claim
19 words
The expansion mechanism of claim 4, wherein the second end of each strut curves toward the immediately adjacent strut.
Claim 7
Dependent Claim
13 words
The expansion mechanism of claim 1, wherein the flexible lines comprise pull wires.
Claim 8
Dependent Claim
61 words
The expansion mechanism of claim 1, further comprising a filter mesh disposed about the expansion mechanism, a first edge of the mesh attached circumferentially about the elongate instrument and aligned with the first end of each strut, and a second edge of the mesh attached circumferentially to a segment of each line which extends beyond the second end of each strut.
Claim 9
Dependent Claim
15 words
The expansion mechanism of claim 7, wherein the elongate instrument comprises a blood filtration cannula.
Claim 10
Dependent Claim
14 words
The expansion mechanism of claim 1, wherein the elongate instrument comprises a percutaneous catheter.
Claim 11
Dependent Claim
14 words
The expansion mechanism of claim 9, wherein the catheter further comprises a balloon occluder.
Claim 12
Dependent Claim
15 words
The expansion mechanism of claim 10, wherein the balloon occluder is mounted proximal the struts.
Claim 13
Independent Claim
157 words
A method for radially expanding a portion of a medical device within a patient, comprising the steps of: providing a medical device comprising an elongate instrument having a plurality of struts arranged circumferentially around the instrument, each strut having an end which pivots away from the instrument, and a plurality of flexible lines, one carried by each struts, each line having a proximal end and a distal end which slideably engages the end of the strut which carries it, the distal end of each line being attached to the strut immediately adjacent the strut which carries it, each line passing proximally beyond the first end of the strut which carries it, inserting the medical device into the patient through an incision; pushing the flexible lines distally to expand the portion of the device radially outward; pulling the flexible lined proximally to contract the portion of the device radially inward; and removing the medical device from the patient.
Claim 14
Independent Claim
157 words
A method for radially expanding a portion of a medical device within a patient, comprising the steps of: providing a medical device comprising an elongate instrument having a plurality of struts arranged circumferentially around the instrument, each strut having an end which pivots away from the instrument, and a plurality of flexible lines, one carried by each struts, each line having a proximal end and a distal end which slideably engages the end of the strut which carries it, the distal end of each line being attached to the strut immediately adjacent the strut which carries it, each line passing proximally beyond the first end of the strut which carries it, inserting the medical device into the patient through an incision; pushing the flexible lines distally to expand the portion of the device radially outward; pulling the flexible lined proximally to contract the portion of the device radially inward; and removing the medical device from the patient.
Claim 15
Dependent Claim
35 words
The method of claim 12, wherein the elongate instrument further comprises a filter mesh disposed over said struts and expandable by operation of said flexible lines, wherein during use the filter mesh captures embolic material.
Claim 16
Dependent Claim
17 words
The method of claim 13, wherein the medical device is inserted into an artery of the patient.
Claim 17
Dependent Claim
11 words
The method of claim 14, wherein the artery is an aorta.
Claim 18
Dependent Claim
13 words
The method of claim 15, further comprising the steps of performing cardiopulmonary bypass.
Claim 19
Dependent Claim
14 words
The method of claim 15, further comprising the steps of performing valve repair surgery.
Claim 20
Dependent Claim
12 words
The method of claim 12, wherein the instrument is a percutaneous catheter.
Claim 21
Dependent Claim
12 words
The method of claim 14, wherein the artery is a carotid artery.
Claim 22
Dependent Claim
13 words
The method of claim 19, further comprising the steps of performing carotid endarterectomy.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-07-04 | 2004-01-03 | 2004-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-04 | 2008-01-03 | 2008-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-04 | 2012-01-03 | 2012-07-04 | $7700.00 | Window Closed / Lapsed |