US6942673B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable basket
Assignee: Boston Scientific Scimed Inc
•
Filing: 2003-02-03
•
Granted: 2005-09-13
•
Expires: 2023-02-03
Abstract
Abstract A medical retrieval device includes a basket formed of two or more loops. The basket may be used to retrieve material (e.g., a urinary stone) from a body. The basket opens and closes for end-encapsulation of a stone and is strengthened by support members that interconnect the basket loops. A captured stone may be released from the basket with the basket still in the body by opening the loops.
Inventors
- 👤 James S. Bates
- 👤 James A. Teague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/221; A61B17/32; A61B17/3205; A61B17/32056; A61B2017/2215
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
143 words
A medical device, comprising: a proximal handle; a sheath extending distally from the handle and having a lumen extending therethrough from a distal end of the sheath to a proximal end of the sheath; at least two opposing loops having a collapsed position in which the loops are collapsed within the lumen of the sheath and another position in which the loops extend from the distal end of the sheath and out of the lumen, the loops being joined at their proximal ends 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; and a membrane framed by at least one of the loops.
Claim 2
Dependent Claim
143 words
A medical device, comprising: a proximal handle; a sheath extending distally from the handle and having a lumen extending therethrough from a distal end of the sheath to a proximal end of the sheath; at least two opposing loops having a collapsed position in which the loops are collapsed within the lumen of the sheath and another position in which the loops extend from the distal end of the sheath and out of the lumen, the loops being joined at their proximal ends 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; and a membrane framed by at least one of the loops.
Claim 3
Dependent Claim
12 words
The device of claim 1 , wherein the membrane comprises a mesh.
Claim 4
Dependent Claim
13 words
The device of claim 1 , wherein the membrane comprises a woven material.
Claim 5
Dependent Claim
15 words
The device of claim 1 , further comprising membranes each framed by a different loop.
Claim 6
Dependent Claim
20 words
The device of claim 4 , wherein at least two membranes are each framed by one of two opposing loops.
Claim 7
Dependent Claim
12 words
The device of claim 1 , wherein the membrane forms a concavity.
Claim 8
Dependent Claim
14 words
The device of claim 1 , wherein the sheath moves relative to the loops.
Claim 9
Dependent Claim
26 words
The device of claim 1 , further comprising an elongated member extending from the handle through the lumen of the sheath, and joined to the loops.
Claim 10
Dependent Claim
20 words
The device of claim 1 , wherein at least a portion of the loops is coated with an anti-slip substance.
Claim 11
Dependent Claim
16 words
The device of claim 1 , wherein at least a portion of the loops is roughened.
Claim 12
Dependent Claim
17 words
The device of claim 1 , further comprising one of more support members disposed between the loops.
Claim 13
Dependent Claim
24 words
The device of claim 1 , further comprising a mechanism for fragmenting or moving the material, the mechanism being deployed from the sheath lumen.
Claim 14
Dependent Claim
13 words
The device of claim 12 , wherein the mechanism comprises a laser lithotriptor.
Claim 15
Dependent Claim
21 words
The device of claim 1 , wherein at least a portion of the loops is energizeable to excise a biological tissue.
Claim 16
Dependent Claim
17 words
The device of claim 1 , wherein at least one of the loops comprises a cutting surface.
Claim 17
Dependent Claim
53 words
The device of claim 1 , further comprising an elongated member slidingly moveable within the lumen of the sheath and at least one wire operably attached to at least one loop and to the elongated member, wherein movement of the elongated member transitions the loops between the closed position and the open position.
Claim 18
Dependent Claim
17 words
The device of claim 1 , wherein at least one of the loops comprises a stainless steel.
Claim 19
Dependent Claim
18 words
The device of claim 1 , wherein at least one of the loops comprises a shape memory material.
Claim 20
Independent Claim
204 words
A method for retrieving a material from a body, comprising: inserting a medical device into a body, the device comprising a proximal handle, a sheath extending distally from the handle and having a lumen extending therethrough from a distal end of the sheath to a proximal end of the sheath, at least two opposing loops having a collapsed position in which the loops are collapsed within the lumen of the sheath and another position in which the loops extend from the distal end of the sheath and out of the lumen, the loops being joined at their proximal ends 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, and a membrane framed by at least one of the loops; placing the loops in the position in which they extend from the distal end of the sheath and out of the lumen of the sheath; capturing the material with the loops; and withdrawing the device from the body to remove the material from the body.
Claim 21
Independent Claim
204 words
A method for retrieving a material from a body, comprising: inserting a medical device into a body, the device comprising a proximal handle, a sheath extending distally from the handle and having a lumen extending therethrough from a distal end of the sheath to a proximal end of the sheath, at least two opposing loops having a collapsed position in which the loops are collapsed within the lumen of the sheath and another position in which the loops extend from the distal end of the sheath and out of the lumen, the loops being joined at their proximal ends 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, and a membrane framed by at least one of the loops; placing the loops in the position in which they extend from the distal end of the sheath and out of the lumen of the sheath; capturing the material with the loops; and withdrawing the device from the body to remove the material from the body.
Claim 22
Dependent Claim
19 words
The method of claim 19 wherein the capturing step further comprises breaking the material into two or more pieces.
Claim 23
Dependent Claim
19 words
The method of claim 19 wherein the step of capturing the material comprises capturing a calculus or a stone.
Claim 24
Dependent Claim
34 words
The method of claim 21 wherein the step of capturing the material comprises capturing a stone from a location selected from the group consisting of the kidney, the ureter, the bladder, and the gall.
Claim 25
Dependent Claim
20 words
The method of claim 21 wherein the step of capturing the material comprises capturing a stone within the biliary tree.
Claim 26
Dependent Claim
15 words
The method of claim 19 wherein the step of capturing the material comprises a polypectomy.
Claim 27
Dependent Claim
16 words
The method of claim 19 wherein the step of capturing the material comprises a biopsy procedure.
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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) | 2008-09-12 | 2009-03-14 | 2009-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-09-12 | 2013-03-14 | 2013-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-09-12 | 2017-03-14 | 2017-09-13 | $7700.00 | Window Closed / Lapsed |