US6375668B1
Expired / Lapsed
US
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Devices and methods for treating vascular malformations
Assignee: Stryker Corp
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Filing: 1999-06-02
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Granted: 2002-04-23
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Expires: 2019-06-02
Abstract
Abstract A system for treating a vascular malformation has an expandable device and a heating device for heating and shrinking the malformation. The expandable device may have deformable elements which plastically deform in the expanded position. The balloon may be self-expanding, balloon expanded or expanded with an actuating rod. A fluid, such as saline, may be introduced during heating when using RF heating. A sealant may also be introduced into the expandable device to further seal the aneurysm.
Inventors
- 👤 Hanson S. Gifford
- 👤 Ivan Sepetka
- 👤 Mark E. Deem
- 👤 Martin S. Dieck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12113; A61B17/12118; A61B17/12131; A61B17/12136; A61B17/1214; A61B17/12145; A61B17/12168; A61B17/12172; A61B17/12177; A61B17/12181; A61B17/12186; A61M; A61M25/00; A61M25/10; A61M25/1002; A61M29/00; A61M29/02; A61B2017/00831; A61B2017/00867; A61B2017/1205; A61B2017/12054; A61B2017/12068; A61B2017/12081; A61B2017/12095; A61B2018/00053; A61B2018/00214; A61B2018/00315; A61B2018/00345; A61B2018/00404; A61B2018/00416; A61B2018/1495; A61M2025/1043; A61M2025/1084; A61M2205/00; A61M2205/36; A61M25/0067; A61M25/0068; A61M25/007; A61M25/0074; A61M25/0082
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
94 words
A method of treating a cerebral aneurysm, comprising the steps of: providing an expandable structure movable from a collapsed shape to an expanded shape; introducing the expandable structure into a blood vessel of a patient; advancing the expandable structure through the patient's vasculature to a cerebral aneurysm while the expandable structure is in the collapsed position; moving the expandable structure into the cerebral aneurysm; expanding the expandable structure to the expanded position in the cerebral aneurysm; shrinking the wall of the aneurysm; and leaving the expandable structure in the aneurysm after the shrinking step.
Claim 2
Independent Claim
94 words
A method of treating a cerebral aneurysm, comprising the steps of: providing an expandable structure movable from a collapsed shape to an expanded shape; introducing the expandable structure into a blood vessel of a patient; advancing the expandable structure through the patient's vasculature to a cerebral aneurysm while the expandable structure is in the collapsed position; moving the expandable structure into the cerebral aneurysm; expanding the expandable structure to the expanded position in the cerebral aneurysm; shrinking the wall of the aneurysm; and leaving the expandable structure in the aneurysm after the shrinking step.
Claim 3
Dependent Claim
21 words
The method of claim 1 , wherein the shrinking step is carried out until the aneurysmal wall contacts the expandable structure.
Claim 4
Dependent Claim
29 words
The method of claim 1 , wherein the shrinking step is carried out by delivering electrical energy to the expandable structure to generate heat which shrinks the aneurysm wall.
Claim 5
Dependent Claim
21 words
The method of claim 3 , further comprising the step of: delivering saline to the aneurysm while delivering the electrical energy.
Claim 6
Dependent Claim
18 words
The method of claim 3 , wherein the shrinking step is carried out for at least 5 seconds.
Claim 7
Dependent Claim
26 words
The method of claim 1 , wherein the shrinking step is carried out by providing a heated fluid in the aneurysm to heat the aneurysmal wall.
Claim 8
Dependent Claim
26 words
The method of claim 1 , wherein the introducing step is carried out with the expandable structure having a permeable portion when in the expanded position.
Claim 9
Dependent Claim
36 words
The method of claim 7 , wherein the shrinking step is carried out by delivering RF energy to the aneurysm wherein heated fluid in the aneurysm leaks through the permeable portion and into the parental vessel.
Claim 10
Dependent Claim
31 words
The method of claim 1 , wherein the introducing step is carried out with the expandable structure being advanced through the patient's vasculature with a catheter, the catheter having a lumen.
Claim 11
Dependent Claim
29 words
The method of claim 1 , further comprising the steps of: coupling the lumen to a source of fluid; and infusing the fluid into the aneurysm through the lumen.
Claim 12
Dependent Claim
28 words
The method of claim 10 , wherein the infusing step is carried out so that the fluid seals the aneurysm to isolate the aneurysm from the parental vessel.
Claim 13
Dependent Claim
34 words
The method of claim 1 , wherein the shrinking step is carried out so that the aneurysmal wall contacts the expandable structure and reduces the size of the expandable structure after the expanding step.
Claim 14
Independent Claim
81 words
A method of isolating a cerebral aneurysm from the parental vessel, comprising the steps of: providing a device movable from a collapsed position to an expanded position, the device having a proximal portion when in the expanded position; introducing the device into the aneurysm in the collapsed position; expanding the device to the expanded position after the introducing step; shrinking the dome of the aneurysm so that the proximal portion of the expandable device extends around the neck of the aneurysm.
Claim 15
Independent Claim
81 words
A method of isolating a cerebral aneurysm from the parental vessel, comprising the steps of: providing a device movable from a collapsed position to an expanded position, the device having a proximal portion when in the expanded position; introducing the device into the aneurysm in the collapsed position; expanding the device to the expanded position after the introducing step; shrinking the dome of the aneurysm so that the proximal portion of the expandable device extends around the neck of the aneurysm.
Claim 16
Dependent Claim
36 words
The method of claim 13 , wherein the providing step is carried out with the proximal portion being permeable, the proximal portion being configured to form a thrombus to isolate the aneurysm from the parental vessel.
Claim 17
Dependent Claim
44 words
The method of claim 14 , wherein the providing step is carried out with the proximal portion forming a permeable barrier having an opening size of no more than 1 mm when viewed in a direction perpendicular to blood flow through the parental vessel.
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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) | 2005-04-22 | 2005-10-22 | 2006-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-04-22 | 2009-10-22 | 2010-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-04-22 | 2013-10-22 | 2014-04-23 | $7700.00 | Window Closed / Lapsed |