US6846316B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Systems and methods for detaching a covering from an implantable medical device
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 2001-11-14
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Granted: 2005-01-25
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Expires: 2021-11-14
Abstract
Abstract An endoprosthesis cover may be attached to the distal end of a delivery device. The cover may be generally cylindrical in shape and may have a lumen through it. An endoprosthesis may then be covered as it is delivered to a treatment site.
Inventors
- 👤 Robert M. Abrams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:55
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12113; A61B17/12131; A61B17/12168; A61F2/82; A61F2/86; A61F2/88; A61F2/95; A61B2017/1205; A61B2017/12054; A61B2017/12063; A61F2002/075; A61F2230/00; A61F2230/0063; A61F2230/0073; A61F2230/008
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
89 words
A device for delivering an expandable prosthesis in a body lumen comprising: an elongate body having a distal end and a lumen therethrough; an expandable prosthesis; and an expandable sheath releasably attached to the distal end of the body, the sheath having a distal opening and a lumen therethrough, the sheath located distal to the expandable prosthesis when the expandable prosthesis is in the elongate body lumen, wherein the sheath is configured to receive the expandable prosthesis when the expandable prosthesis is delivered outside of the elongate body lumen.
Claim 2
Independent Claim
89 words
A device for delivering an expandable prosthesis in a body lumen comprising: an elongate body having a distal end and a lumen therethrough; an expandable prosthesis; and an expandable sheath releasably attached to the distal end of the body, the sheath having a distal opening and a lumen therethrough, the sheath located distal to the expandable prosthesis when the expandable prosthesis is in the elongate body lumen, wherein the sheath is configured to receive the expandable prosthesis when the expandable prosthesis is delivered outside of the elongate body lumen.
Claim 3
Dependent Claim
44 words
The sheath of claim 1 wherein the expandable sheath is releasably attached with a releasable attachment, wherein the releasable attachment comprises an adhesive calibrated to detach from the elongate body when a sufficient expansion force is applied to the sheath by the expandable prosthesis.
Claim 4
Dependent Claim
45 words
The sheath of claim 1 wherein the expandable sheath is releasably attached with a releasable attachment, wherein the releasable attachment comprises a circumferential perforation configured to detach from the elongate body when a sufficient expansion force is applied to the sheath by the expandable prosthesis.
Claim 5
Dependent Claim
16 words
The sheath of claim 1 further comprising perforations to allow blood porosity and to enhance distensability.
Claim 6
Dependent Claim
9 words
The expandable prosthesis of claim 1 comprising a stent.
Claim 7
Dependent Claim
9 words
The expandable prosthesis of claim 1 comprising a coil.
Claim 8
Dependent Claim
21 words
The expandable prosthesis of claim 1 comprising a wire having a pre-curved shape that forms upon delivery into the expandable sheath.
Claim 9
Dependent Claim
71 words
A detachable prosthesis cover comprising: a tubular member; a prosthesis; and a generally tubular sheath having a lumen therethrough and a proximal region of the sheath circumferentially surrounding a distal end of the tubular member, the sheath located distal to the prosthesis when the prosthesis is being delivered through the tubular member, wherein the sheath is configured to capture the prosthesis delivered into the lumen and separate from the tubular member.
Claim 10
Dependent Claim
71 words
A detachable prosthesis cover comprising: a tubular member; a prosthesis; and a generally tubular sheath having a lumen therethrough and a proximal region of the sheath circumferentially surrounding a distal end of the tubular member, the sheath located distal to the prosthesis when the prosthesis is being delivered through the tubular member, wherein the sheath is configured to capture the prosthesis delivered into the lumen and separate from the tubular member.
Claim 11
Dependent Claim
8 words
The prosthesis of claim 8 comprising a stent.
Claim 12
Dependent Claim
9 words
The expandable prosthesis of claim 8 comprising a coil.
Claim 13
Dependent Claim
16 words
The sheath of claim 8 further comprising perforations to allow blood porosity and to enhance distensability.
Claim 14
Dependent Claim
21 words
The prosthesis of claim 8 comprising a wire having a pre-curved shape that forms upon delivery into the generally tubular sheath.
Claim 15
Independent Claim
86 words
A method of delivering a prosthesis comprising: providing a delivery system comprising a tubular member, a sheath releasably affixed to the tubular member, a prosthesis, and an actuator for deploying the prosthesis; advancing a distal end of the tubular member through a body vessel to a position within a human body; delivering the prosthesis into a lumen of the sheath; and deploying the prosthesis such that the sheath is positioned between the prosthesis and a vessel wall while maintaining a patent fluid path through the vessel.
Claim 16
Independent Claim
86 words
A method of delivering a prosthesis comprising: providing a delivery system comprising a tubular member, a sheath releasably affixed to the tubular member, a prosthesis, and an actuator for deploying the prosthesis; advancing a distal end of the tubular member through a body vessel to a position within a human body; delivering the prosthesis into a lumen of the sheath; and deploying the prosthesis such that the sheath is positioned between the prosthesis and a vessel wall while maintaining a patent fluid path through the vessel.
Claim 17
Dependent Claim
19 words
The method of claim 13 further comprising detaching the sheath from the tubular member as the prosthesis is deployed.
Claim 18
Dependent Claim
14 words
The method of claim 14 wherein the prosthesis is deployed in an aneurysm neck.
Claim 19
Dependent Claim
13 words
The method of claim 13 wherein the prosthesis is deployed in an aneurysm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2008-01-25 | 2008-07-26 | 2009-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-01-25 | 2012-07-26 | 2013-01-25 | $3760.00 | Window Closed / Lapsed |
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