US6846324B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination anatomical orifice sizer and heart valve
Assignee: Edwards Lifesciences Corp
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Filing: 2002-01-22
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Granted: 2005-01-25
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Expires: 2022-01-22
Abstract
Abstract Anatomical orifice sizers that are optimally proportional to an associated prosthetic device such as a heart valve, and methods of use are provided. The sizers are desirably slightly larger than the rigid mounting diameter of the corresponding heart valve. The heart valve sizer may be cylindrical and have a diameter about 0.3 mm larger than the valve mounting diameter. The sizer preferably has a length of between about 19 mm to 22 mm, and the edges are desirably rounded to a minimum 1 mm radius. The method includes providing a set of cylindrical sizers having varying diameters; sequentially inserting at least two of the sizers through the annulus; measuring the push force needed to pass each sizer through the annulus; selecting a valve corresponding to the sizer for which the measured push force is between about 150 and 300 grams.
Inventors
- 👤 Robert Stobie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:12
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2409; A61F2/2496; A61B; A61B90/00; A61B90/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
54 words
A cylindrical heart valve sizer in combination with a prosthetic heart valve having a mounting portion, the sizer having indicated thereon a size corresponding to an indicated valve size of the prosthetic heart valve, wherein the actual diameter of the heart valve sizer is larger than the actual diameter of the valve mounting portion.
Claim 2
Dependent Claim
54 words
A cylindrical heart valve sizer in combination with a prosthetic heart valve having a mounting portion, the sizer having indicated thereon a size corresponding to an indicated valve size of the prosthetic heart valve, wherein the actual diameter of the heart valve sizer is larger than the actual diameter of the valve mounting portion.
Claim 3
Dependent Claim
25 words
The combination of claim 1 wherein the diameter of the sizer is between about 0.2 mm to 0.4 mm larger than the valve mounting portion.
Claim 4
Dependent Claim
21 words
The combination of claim 2 wherein the diameter of the sizer is about 0.3 mm larger than the valve mounting portion.
Claim 5
Dependent Claim
28 words
The combination of claim 2 wherein the length of the sizer is substantially cylindrical in shape and has a length of between about 19 mm to 22 mm.
Claim 6
Dependent Claim
28 words
The combination of claim 1 wherein the length of the sizer is substantially cylindrical in shape and has a length of between about 19 mm to 22 mm.
Claim 7
Dependent Claim
28 words
The combination of claim 5 wherein the sizer has rim edges on one end thereof, and wherein said rim edges are rounded to a minimum 1 mm radius.
Claim 8
Dependent Claim
28 words
The combination of claim 1 wherein the sizer has rim edges on one end thereof, and wherein said rim edges are rounded to a minimum 1 mm radius.
Claim 9
Dependent Claim
81 words
A kit for installing a prosthetic heart valve comprising: at least one prosthetic heart valve having a rigid mounting portion having a diameter D, the prosthetic heart valve denoted by a size identifier; and, at least one cylindrical sizer having a diameter S and denoted by a size identifier corresponding to the size identifier of the valve; wherein the actual diameter S of the sizer is larger than the actual diameter D of the rigid mounting portion of the heart valve.
Claim 10
Dependent Claim
81 words
A kit for installing a prosthetic heart valve comprising: at least one prosthetic heart valve having a rigid mounting portion having a diameter D, the prosthetic heart valve denoted by a size identifier; and, at least one cylindrical sizer having a diameter S and denoted by a size identifier corresponding to the size identifier of the valve; wherein the actual diameter S of the sizer is larger than the actual diameter D of the rigid mounting portion of the heart valve.
Claim 11
Dependent Claim
33 words
The kit of claim 8 wherein the diameter of the sizer is between about 0.2 mm to 0.4 mm larger than the diameter of the rigid mounting portion of the corresponding heart valve.
Claim 12
Dependent Claim
29 words
The kit of claim 9 wherein the diameter of the sizer is about 0.3 mm larger than the diameter of the rigid mounting portion of the corresponding heart valve.
Claim 13
Dependent Claim
19 words
The kit of claim 10 wherein the sizer has a cylindrical length of between about 19mm to 22 mm.
Claim 14
Dependent Claim
20 words
The kit of claim 8 wherein the sizer has a cylindrical length of between about 19 mm to 22 mm.
Claim 15
Dependent Claim
19 words
The kit of claim 12 wherein the sizer has edges that are rounded to a minimum 1 mm radius.
Claim 16
Dependent Claim
19 words
The kit of claim 8 wherein the sizer has edges that are rounded to a minimum 1 mm radius.
References Cited (Backward Citations)
GB2083362A
Cited
US4211241A
Cited
US5042161A
Cited
US5545214A
Cited
US5360014A
Cited
US5489296A
Cited
US5531785A
Cited
US5716417A
Cited
US5814098A
Cited
WO1997025003A1
Cited
US6045576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-01-25 | 2008-07-26 | 2009-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-01-25 | 2012-07-26 | 2013-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-01-25 | 2016-07-26 | 2017-01-25 | $7700.00 | Window Closed / Lapsed |