Patent US2430672A successfully refreshed from Google Patents.
Patent US6033419A successfully refreshed from Google Patents.
US6033419A
Expired / Lapsed
US
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Apparatus and method for cutting a heart valve annulus
Assignee: Corcym SRL
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Filing: 1998-05-15
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Granted: 2000-03-07
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Expires: 2018-05-15
Abstract
Abstract An apparatus and method are disclosed for cutting a heart valve annulus. The apparatus includes an actuator and a backup plate coupled to the actuator. The apparatus also includes an annulus cutter movably coupled to the actuator. The annulus cutter can thereby oppose and engage the backup plate. The method includes positioning a backup plate proximate heart valve tissue to be removed. An annulus cutter is then positioned proximate the heart valve tissue opposing the backup plate. The annulus cutter is engaged in opposition with the backup plate to cut the heart valve tissue and form a heart valve annulus. The heart valve tissue is then removed.
Inventors
- 👤 James Henry Hamblin, Jr.
- 👤 Billy Ray Singleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:10
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/32053
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
61 words
An apparatus for cutting a heart valve annulus, comprising: an actuator having a first end and a second end; an annulus cutter movably coupled to the actuator between the first end and the second end; and a backup plate coupled to the first end of the actuator, said backup plate comprising a stop for opposing and engaging said said annulus cutter.
Claim 2
Independent Claim
61 words
An apparatus for cutting a heart valve annulus, comprising: an actuator having a first end and a second end; an annulus cutter movably coupled to the actuator between the first end and the second end; and a backup plate coupled to the first end of the actuator, said backup plate comprising a stop for opposing and engaging said said annulus cutter.
Claim 3
Dependent Claim
73 words
The apparatus of claim 1, further comprising: a handle; a body having a first end and a second end, the first end coupled to the handle, and the actuator extending through the body; a spring coupled to the body and to the actuator, the spring having a compressed state allowing the backup plate to be extended from the body and having an uncompressed state holding the backup plate in contact with the body.
Claim 4
Dependent Claim
42 words
The apparatus of claim 2, further comprising: a cutter member movably coupled to the body and positioned coaxially with respect to the body and the actuator; the annulus cutter coupled to a first end of the cutter member proximate the backup plate.
Claim 5
Dependent Claim
14 words
The apparatus of claim 3, wherein the annulus cutter comprises a stainless steel cutter.
Claim 6
Dependent Claim
19 words
The apparatus of claim 3, wherein the annulus cutter comprises a cutter edge formed integrally with the cutter member.
Claim 7
Dependent Claim
35 words
The apparatus of claim 3, further comprising: a cutter rotator coupled to a second end of the cutter member distal from the backup plate; and a ring coupled to the second end of the actuator.
Claim 8
Dependent Claim
21 words
The apparatus of claim 1, wherein the apparatus is flexible and can be operated through a conduit in a non-invasive procedure.
Claim 9
Dependent Claim
11 words
The apparatus of claim 7, wherein the conduit is a catheter.
Claim 10
Independent Claim
63 words
A method for cutting a heart valve annulus, comprising: positioning an annulus cutter proximate heart valve tissue to be removed; positioning a backup plate comprising a stop for the annulus cutter proximate the heart valve tissue; engaging the cutter in opposition with the backup plate to cut the heart valve tissue and form a heart valve annulus; and removing the heart valve tissue.
Claim 11
Independent Claim
63 words
A method for cutting a heart valve annulus, comprising: positioning an annulus cutter proximate heart valve tissue to be removed; positioning a backup plate comprising a stop for the annulus cutter proximate the heart valve tissue; engaging the cutter in opposition with the backup plate to cut the heart valve tissue and form a heart valve annulus; and removing the heart valve tissue.
Claim 12
Dependent Claim
24 words
The method of claim 9, wherein positioning the backup plate comprises extending the backup plate through an existing heart valve into a heart chamber.
Claim 13
Dependent Claim
17 words
The method of claim 9, wherein the backup plate is collapsible to form a smaller cross section.
Claim 14
Dependent Claim
25 words
The method of claim 9, wherein positioning the annulus cutter comprises moving the annulus cutter to contact the heart valve tissue outside the heart chamber.
Claim 15
Dependent Claim
18 words
The method of claim 9, wherein the annulus cutter is circular and forms a circular heart valve annulus.
Claim 16
Dependent Claim
20 words
The method of claim 9, wherein the backup plate and the annulus cutter are components of a hand-held surgical device.
Claim 17
Dependent Claim
30 words
The method of claim 9, wherein the backup plate and the annulus cutter are components of a flexible surgical device that can operated through a conduit in a non-invasive procedure.
Claim 18
Independent Claim
48 words
An apparatus for cutting a heart valve annulus, comprising: an actuator having a first end and a second end; an annulus cutter movably coupled to the actuator between the first end and the second end; and a collapsible backup plate coupled to the first end of the actuator.
Claim 19
Independent Claim
48 words
An apparatus for cutting a heart valve annulus, comprising: an actuator having a first end and a second end; an annulus cutter movably coupled to the actuator between the first end and the second end; and a collapsible backup plate coupled to the first end of the actuator.
Claim 20
Dependent Claim
31 words
The apparatus of claim 16, wherein said collapsible backup plate further comprises: a centerpiece; a first leaflet movably coupled to the centerpiece; and a second leaflet movably coupled to the centerpiece.
Claim 21
Dependent Claim
18 words
The apparatus of claim 17, wherein the first and second leaflets are coupled to the centerpiece by hinges.
Claim 22
Dependent Claim
22 words
The apparatus of claim 17, wherein the leaflets are held in place when the backup plate is in contact with the body.
References Cited (Backward Citations)
DE2028070A1
Cited
US3776237A
Cited
US4018228A
Cited
US5069679A
Cited
US5129913A
Cited
WO1995016476A1
Cited
DE19507560A1
Cited
US5690662A
Cited
WO1997027799A1
Cited
US5827316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-03-07 | 2003-09-06 | 2004-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-07 | 2007-09-06 | 2008-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-07 | 2011-09-06 | 2012-03-07 | $7700.00 | Window Closed / Lapsed |