US6368328B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser-resistant medical retrieval device
Assignee: Boston Scientific Scimed Inc
•
Filing: 1999-09-16
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Granted: 2002-04-09
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Expires: 2019-09-16
Abstract
Abstract A medical device used for retrieving material from within a body includes an engaging assembly in which at least a portion of the engaging assembly is resistant to laser energy-induced damage.
Inventors
- 👤 Michael S. H. Chu
- 👤 George Bourne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:00
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/221; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/26; A61B2017/2212; A61B2017/2215; A61B90/00; A61B90/04; A61B2090/049
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
106 words
A medical device, comprising: a proximal handle; a sheath extending distally from the handle and having a lumen; and, an engaging assembly for engaging material within a body, the engaging assembly comprising a plurality of legs and having at least a position in which the engaging assembly is within the lumen of the sheath and another position in which the engaging assembly extends from a distal end of the sheath and out of the lumen, an entire cross-section of at least a portion of a length of at least one of the plurality of legs comprising at least one substance resistant to damage from laser energy.
Claim 2
Dependent Claim
106 words
A medical device, comprising: a proximal handle; a sheath extending distally from the handle and having a lumen; and, an engaging assembly for engaging material within a body, the engaging assembly comprising a plurality of legs and having at least a position in which the engaging assembly is within the lumen of the sheath and another position in which the engaging assembly extends from a distal end of the sheath and out of the lumen, an entire cross-section of at least a portion of a length of at least one of the plurality of legs comprising at least one substance resistant to damage from laser energy.
Claim 3
Dependent Claim
31 words
The medical device of claim 1 wherein said sheath is axially moveable over said engaging assembly, whereby said engaging assembly moves relative to said sheath when said sheath is axially moved.
Claim 4
Dependent Claim
42 words
The medical device of claim 1 further comprising an elongated member extending within said sheath lumen and operably attached to a proximal end of said engaging assembly, whereby said engaging assembly moves when said elongated member is axially moved within said sheath.
Claim 5
Dependent Claim
15 words
The medical device of claim 1 wherein said engaging assembly comprises a surgical retrieval basket.
Claim 6
Dependent Claim
14 words
The medical device of claim 4 wherein said basket comprises a plurality of loops.
Claim 7
Dependent Claim
20 words
The medical device of claim 4 wherein said basket comprises an atraumatic tip at the distal end of the basket.
Claim 8
Dependent Claim
26 words
The medical device of claim 4 wherein at least one of said plurality of legs comprises at least one substance resistant to damage from laser energy.
Claim 9
Dependent Claim
18 words
The medical device of claim 1 wherein at least one of said plurality of legs is individually actuateable.
Claim 10
Dependent Claim
23 words
The medical device of claim 1 wherein the cross-section of at least one of said plurality of legs is D-shaped, V-shaped, or rectangular.
Claim 11
Dependent Claim
15 words
The medical device of claim 1 wherein said engaging assembly comprises a single loop configuration.
Claim 12
Dependent Claim
28 words
The medical device of claim 1 wherein said engaging assembly is moveable between a closed position and an open position to allow engaging of material in the body.
Claim 13
Dependent Claim
79 words
The medical device of claim 1 wherein said engaging assembly comprises a proximal portion and a distal portion, the distal portion for capturing material in a body when the distal portion is extended beyond the distal end of the sheath and the proximal portion of the engaging assembly is collapsed within the sheath, the engaging assembly expanding to release captured material when the distal and proximal portions of the engaging assembly extend from the distal end of the sheath.
Claim 14
Dependent Claim
13 words
The medical device of claim 12 wherein said engaging assembly comprises a basket.
Claim 15
Dependent Claim
119 words
The medical device of claim 1 wherein said engaging assembly comprises a grasper, said grasper comprising a plurality of opposing loops and having a collapsed position in which the loops are collapsed within the lumen of the sheath and another position in which at least a portion of the loops extend from the distal end of the sheath and out of the lumen, the loops being joined at a base and unattached to each other at their distal ends, the loops being moveable between an open position and a closed position with the loops being closer together at their distal ends when in the closed position than when in the open position to allow capture and release of material.
Claim 16
Dependent Claim
13 words
The medical device of claim 14 wherein said grasper comprises two opposing loops.
Claim 17
Dependent Claim
14 words
The medical device of claim 1 wherein said engaging assembly comprises a surgical screen.
Claim 18
Dependent Claim
14 words
The medical device of claim 1 wherein said engaging assembly comprises a laser-resistant fabric.
Claim 19
Dependent Claim
18 words
The medical device of claim 1 wherein said at least one substance comprises at least one fluorocarbon plastic.
Claim 20
Dependent Claim
13 words
The medical device of claim 18 wherein said fluorocarbon plastic comprises expanded polytetrafluoroethylene.
Claim 21
Independent Claim
144 words
A method for treatment of material within a body, comprising: inserting into a body a medical device comprising a proximal handle, a sheath extending distally from the handle and having a lumen, and an engaging assembly for engaging material within a body, the engaging assembly comprising a plurality of legs and having at least a position in which the engaging assembly is within the lumen of the sheath and another position in which the engaging assembly extends from a distal end of the sheath and out of the lumen, an entire cross-section of at least a portion of a length of at least one of the plurality of legs comprising at least one substance resistant to damage from laser energy; holding said material by the engaging assembly for laser treatment; treating said material with a laser; and removing said medical device from the body.
Claim 22
Independent Claim
144 words
A method for treatment of material within a body, comprising: inserting into a body a medical device comprising a proximal handle, a sheath extending distally from the handle and having a lumen, and an engaging assembly for engaging material within a body, the engaging assembly comprising a plurality of legs and having at least a position in which the engaging assembly is within the lumen of the sheath and another position in which the engaging assembly extends from a distal end of the sheath and out of the lumen, an entire cross-section of at least a portion of a length of at least one of the plurality of legs comprising at least one substance resistant to damage from laser energy; holding said material by the engaging assembly for laser treatment; treating said material with a laser; and removing said medical device from the body.
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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) | 2005-04-08 | 2005-10-08 | 2006-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-04-08 | 2009-10-08 | 2010-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-04-08 | 2013-10-08 | 2014-04-09 | $7700.00 | Window Closed / Lapsed |