US5116352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing deposits from vessels
Assignee: Angiomed GmbH and Co Medizentechnik KG
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Filing: 1990-09-28
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Granted: 1992-05-26
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Expires: 2010-09-28
Abstract
Abstract An apparatus for removing deposits, such as plaque, in vessels and atherosclerotically transformed wall areas. The apparatus includes a rotary wire and a working coil which extends on the front end of the rotary wire. A ball is provided on a distal end of the working coil; additionally, sharp cutting edges are provided on the ball for engaging and cutting the deposits. The ball is able to rotate eccentrically with respect to a longitudinal axis of symmetry of the working coil.
Inventors
- 👤 Wolfram Schnepp-Pesch
- 👤 Josef Lindenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B2017/00681; A61B2017/00685; A61B17/22; A61B2017/22038; A61B2017/22039; A61B2017/320766
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
82 words
Apparatus for removing deposits, such as plaque in vessels, aterosclerotically transformed wall portions, the apparatus comprising a rotary wire, a working coil extending on a front end of the rotary wire, a ball provided on a distal end of the working coil, sharp cutting edges provided on said ball for engaging and cutting said deposits, and means for mounting said ball so as to enable said ball to rotate eccentrically with respect to a longitudinal axis of symmetry of said working coil.
Claim 2
Dependent Claim
82 words
Apparatus for removing deposits, such as plaque in vessels, aterosclerotically transformed wall portions, the apparatus comprising a rotary wire, a working coil extending on a front end of the rotary wire, a ball provided on a distal end of the working coil, sharp cutting edges provided on said ball for engaging and cutting said deposits, and means for mounting said ball so as to enable said ball to rotate eccentrically with respect to a longitudinal axis of symmetry of said working coil.
Claim 3
Dependent Claim
92 words
Apparatus for removing deposits, such as plaque in vessels, aterosclerotically transformed wall portions, with a working coil extending on a front end of the rotary wire, and provided on its distal end with a ball, characterized in that the ball is provided with sharp edges, the sharp edges are formed by a rear transition edge, considered in the rotation direction of the ball, between an outer wall of the ball and a boundary wall of a slot formed in the ball at an acute angle to a tangent on the outer wall.
Claim 4
Dependent Claim
92 words
Apparatus for removing deposits, such as plaque in vessels, aterosclerotically transformed wall portions, with a working coil extending on a front end of the rotary wire, and provided on its distal end with a ball, characterized in that the ball is provided with sharp edges, the sharp edges are formed by a rear transition edge, considered in the rotation direction of the ball, between an outer wall of the ball and a boundary wall of a slot formed in the ball at an acute angle to a tangent on the outer wall.
Claim 5
Dependent Claim
26 words
Apparatus according to one of claims 1 or 2, wherein the sharp cutting edges extend over only a part of a total diameter of the ball.
Claim 6
Dependent Claim
18 words
Apparatus according to claim 3, wherein an outer portion of the working coil includes a sharp cutting edge.
Claim 7
Dependent Claim
17 words
Apparatus according to one of claims 1 or 2 wherein the working coil is a helical wire.
Claim 8
Dependent Claim
32 words
Apparatus according to one of claims 1 or 2, wherein the working coil is formed as a blade having a plurality of twists with respect to a longitudinal axis of the blade.
Claim 9
Dependent Claim
26 words
Apparatus according to claim 2 wherein means are provided for enabling a rotation of the ball eccentrically to a longitudinal center axis of the rotary wire.
Claim 10
Dependent Claim
11 words
Apparatus according to claim 7, wherein the working coil is curved.
Claim 11
Dependent Claim
40 words
Apparatus according to claim 7, wherein said means for enabling includes a bore provided in said ball and extending in parallel to an axis of symmetry of the working coil, and a stationarily held guide wire extending through said bore.
Claim 12
Dependent Claim
42 words
Apparatus according to claim 1, wherein said means for mounting said ball includes a bore provided in said ball and extending in parallel to an axis of symmetry of the working coil, and a stationarily held guide wire extending through said bore.
Claim 13
Dependent Claim
18 words
Apparatus according to claim 1, wherein an outer portion of the working coil includes a sharp cutting edge.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-26 | 1995-11-25 | 1996-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-26 | 1999-11-25 | 2000-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-26 | 2003-11-25 | 2004-05-26 | $7700.00 | Window Closed / Lapsed |