Patent US6159220A successfully refreshed from Google Patents.
US6159220A
Expired / Lapsed
US
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Medical retrieval device
Assignee: Boston Scientific Scimed Inc
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Filing: 1999-03-11
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Granted: 2000-12-12
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Expires: 2019-03-11
Abstract
Abstract A medical retrieval device includes a handle, a sheath, and a basket having basket legs and an atraumatic distal tip. The atraumatic tip of the basket is formed, for example, by entwining the ends of the basket legs together at the distal tip of the basket. Baskets with atraumatic tips according to the invention allow the capture of material from difficult to reach areas of the body while reducing the risk of tissue damage.
Inventors
- 👤 Stephane Gobron
- 👤 Like Que
- 👤 Tim E. Ward
- 👤 William Curtis White
- 👤 Tina M. Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:12
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
40 words
A medical device, comprising: a plurality of legs forming a basket for retrieving material from a body; and a tip at a distal end of the basket, said tip comprising two or more of the legs knotted and tightened together.
Claim 2
Dependent Claim
40 words
A medical device, comprising: a plurality of legs forming a basket for retrieving material from a body; and a tip at a distal end of the basket, said tip comprising two or more of the legs knotted and tightened together.
Claim 3
Dependent Claim
23 words
The medical device of claim 1 further comprising an elongated member, said elongated member and one of said legs comprising a single wire.
Claim 4
Dependent Claim
31 words
The medical device of claim 1 wherein said two or more knotted legs include a distal segment said distal segment forming at least one other of the legs of the basket.
Claim 5
Dependent Claim
24 words
The medical device of claim 3 further comprising an elongated member wherein a portion of said distal segment is attached to said elongated member.
Claim 6
Dependent Claim
23 words
The medical device of claim 1 wherein each of the legs is braided and the legs are each formed from a single wire.
Claim 7
Dependent Claim
17 words
The medical device of claim 1 wherein said knot comprises a square knot or a granny knot.
Claim 8
Dependent Claim
33 words
The medical device of claim 6 wherein said basket comprises two wires, each of said wires having a knot, and each of said knots knotted together at the distal end of said basket.
Claim 9
Dependent Claim
21 words
The medical device of claim 1 wherein said tip at said distal end of said basket comprises a plurality of knots.
Claim 10
Dependent Claim
46 words
A medical device, comprising: a basket for retrieving material from a body, the basket comprising a distal end and a plurality of legs extending proximally from the distal end, both the distal end and the plurality of legs being formed integrally from a single twisted wire.
Claim 11
Dependent Claim
46 words
A medical device, comprising: a basket for retrieving material from a body, the basket comprising a distal end and a plurality of legs extending proximally from the distal end, both the distal end and the plurality of legs being formed integrally from a single twisted wire.
Claim 12
Dependent Claim
15 words
The medical device of claim 9 wherein said legs comprise at least one braided leg.
Claim 13
Dependent Claim
18 words
The medical device of claim 9 wherein at least a portion of one of the legs is braided.
Claim 14
Dependent Claim
27 words
The medical device of claim 9 wherein the legs are formed from at least one twisted wire and are twisted together at said distal basket end portion.
Claim 15
Dependent Claim
19 words
The medical device of claim 9 wherein said plurality of legs are formed from a plurality of twisted wires.
Claim 16
Dependent Claim
17 words
The medical device of claim 9 wherein said distal end portion of the basket comprises a knot.
Claim 17
Dependent Claim
15 words
The medical device of claim 14 wherein said knot comprises two wire loops twisted together.
Claim 18
Dependent Claim
17 words
The medical device of claim 15 wherein said knot comprises a square knot or a granny knot.
Claim 19
Dependent Claim
30 words
The medical device of claim 9 wherein said distal end of the basket comprises a plurality of loops, said loops being twisted together at said distal end of the basket.
Claim 20
Dependent Claim
52 words
A medical device, comprising: a basket comprising a distal end and a plurality of pairs of twisted basket legs extending proximally from the distal end, each of the pairs of basket legs being formed from a single twisted wire, the distal end being formed by entwining together the pairs of basket legs.
Claim 21
Dependent Claim
52 words
A medical device, comprising: a basket comprising a distal end and a plurality of pairs of twisted basket legs extending proximally from the distal end, each of the pairs of basket legs being formed from a single twisted wire, the distal end being formed by entwining together the pairs of basket legs.
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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) | 2003-12-12 | 2004-06-12 | 2004-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-12-12 | 2008-06-12 | 2008-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-12-12 | 2012-06-12 | 2012-12-12 | $7700.00 | Window Closed / Lapsed |