US6660014B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Systems and methods for clot disruption and retrieval
Assignee: Covidien LP
•
Filing: 2002-06-03
•
Granted: 2003-12-09
•
Expires: 2022-06-03
Abstract
Abstract Thrombectomy and other treatments are achieved using a catheter having a positioning cage and a macerator within the positioning cage. The catheter is introduced to a target body lumen, typically a blood vessel, and a positioning cage deployed at a treatment site. The macerator is then operated to disrupt thrombus, clot, or other occlusive materials at the treatment site, and the catheter is used to collect and remove the disruptive materials from the body lumen. In particular examples, the macerator may be radially expansible and optionally rotated and/or axially translated within the positioning cage to effect disruption of the occlusive material.
Inventors
- 👤 Denise Demarais
- 👤 Michael A. Evans
- 👤 Stephen A. Leeflang
- 👤 Christian S. Eversull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:48
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320725; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M29/00; A61M29/02; A61B2017/00681; A61B2017/00685; A61B17/22; A61B17/221; A61B2017/2212; A61B17/320758; A61B2017/320775; A61F; A61F2/00; A61F2/01; A61F2002/016; A61F2002/018; A61F2230/00; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/0076; A61F2230/0093
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
73 words
A catheter for removing occlusive material from a body lumen, said catheter comprising: a catheter body having a proximal end, a distal end, and a lumen therethrough; a radially expansible positioning cage near the distal end of the catheter body; and a radially expansible macerator configured to break up occlusive material within the cage and draw the material into the catheter body lumen, said macerator comprising a shaped wire having a spiral geometry.
Claim 2
Dependent Claim
73 words
A catheter for removing occlusive material from a body lumen, said catheter comprising: a catheter body having a proximal end, a distal end, and a lumen therethrough; a radially expansible positioning cage near the distal end of the catheter body; and a radially expansible macerator configured to break up occlusive material within the cage and draw the material into the catheter body lumen, said macerator comprising a shaped wire having a spiral geometry.
Claim 3
Dependent Claim
21 words
A catheter as in claim 1 , further comprising means for selectively adjusting the diameter of the radially expansible positioning cage.
Claim 4
Dependent Claim
20 words
A catheter as in claim 1 , wherein the radially expansible cage is self-expanding and has a predetermined unconstrained diameter.
Claim 5
Dependent Claim
18 words
A catheter as in claim 1 , further comprising means for selectively adjusting the diameter of the macerator.
Claim 6
Dependent Claim
18 words
A catheter as in claim 1 , wherein the macerator is self-expanding and has a predetermined unconstrained diameter.
Claim 7
Dependent Claim
67 words
A catheter as in claim 1 , wherein the cage is expansible from an initial width in the range from 1 mm to 4 mm to an expanded width in the range from 2 mm to 40 mm and the macerator has an initial width in the range from 1 mm to 4 mm and an expanded width in the range from 2 mm to 35 mm.
Claim 8
Dependent Claim
25 words
A catheter as in claim 1 , wherein adjustment of the radial dimension of the macerator is not coupled to expansion of the positioning cage.
Claim 9
Dependent Claim
12 words
A catheter as in claim 1 , wherein the macerator is rotatable.
Claim 10
Dependent Claim
30 words
A catheter as in claim 8 , further comprising a drive unit at the proximal end of the catheter body, wherein the drive unit is mechanically coupled to the macerator.
References Cited (Backward Citations)
US3320957A
Cited
US4621636A
Cited
US5597378A
Cited
US4665906A
Cited
US4842579B1
Cited
US5024651A
Cited
US4819634A
Cited
US4842579A
Cited
US5653696A
Cited
US4886490A
Cited
US4894051A
Cited
US4732154A
Cited
US5443443A
Cited
US5334211A
Cited
US5306244A
Cited
US4979939A
Cited
US5002553A
Cited
US5135531A
Cited
US4926858A
Cited
US4646736A
Cited
US5041082A
Cited
US4762130A
Cited
US4883458A
Cited
US4923462A
Cited
US4895166A
Cited
US5423799A
Cited
US5007896A
Cited
US4957482A
Cited
US5569277A
Cited
US5226909A
Cited
US5116352A
Cited
US5030201A
Cited
US5041093A
Cited
US5616149A
Cited
US5330484A
Cited
US5100423A
Cited
US5569275A
Cited
US5192268A
Cited
US5630806A
Cited
US5766191A
Cited
US5571122A
Cited
US5540707A
Cited
US5501694A
Cited
US5419774A
Cited
US5643199A
Cited
WO1996001591A1
Cited
US5695507A
Cited
US5873882A
Cited
US5876414A
Cited
US5795322A
Cited
US5556408A
Cited
US5681335A
Cited
US5688234A
Cited
US5928186A
Cited
US5972019A
Cited
WO1998038929A1
Cited
US5911734A
Cited
US5904698A
Cited
US5947985A
Cited
US5954737A
Cited
WO1999044510A1
Cited
WO1999044542A2
Cited
US6001112A
Cited
US6036708A
Cited
WO2000041762A1
Cited
US6322572B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-12-08 | 2007-06-09 | 2007-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-08 | 2011-06-09 | 2011-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-08 | 2015-06-09 | 2015-12-09 | $7700.00 | Window Closed / Lapsed |