US6685739B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable prosthetic valve
Assignee: Boston Scientific Scimed Inc
•
Filing: 2002-07-09
•
Granted: 2004-02-03
•
Expires: 2022-07-09
Abstract
Abstract A prosthetic valve for implantation within a fluid conducting lumen within a body includes an elongate generally cylindrical radially collapsible valve body scaffold defining a fluid passageway therethrough for retentive positioning within the lumen. A radially collapsible leaf valve member is supported by the scaffold includes a number of valve leafs deflectable between a closed position restricting fluid flow through the passageway and an open position permitting fluid flow through the passageway. The leaf valve member includes an interior leaf valve frame defining a valve leaf aperture which is sealed by a fluid impermeable non-thrombogenic lining to prevent fluid flow therethrough.
Inventors
- 👤 Kristian DiMatteo
- 👤 Peter Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:54
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2475; A61F2/2412; A61F2/2415; A61F2/2418; A61F2/2442; A61F2/2454; A61F2/2457; A61F2220/00; A61F2220/0025; A61F2220/0058; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2230/0054; A61F2230/0063; A61F2230/0067; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7886
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
122 words
A method of forming a prosthetic valve for implantation within a body lumen, comprising providing a radially collapsible trellis having a tubular body scaffold portion defining an elongate fluid passageway for fluid flow therethrough and a valve leaflet frame portion having a number of valve leaf frames each defining a valve leaf frame aperture with the scaffold portion wherein said valve leaf frames are deflectable with respect to said scaffold portion so as to extend in overlying registry with the passageway between a first position and a second position, and sealing each said valve leaf aperture with a biocompatible non-thrombogenic fluid impermeable material such that when the leaflet portion is in said first position, fluid flow through said passageway is substantially restricted.
Claim 2
Independent Claim
122 words
A method of forming a prosthetic valve for implantation within a body lumen, comprising providing a radially collapsible trellis having a tubular body scaffold portion defining an elongate fluid passageway for fluid flow therethrough and a valve leaflet frame portion having a number of valve leaf frames each defining a valve leaf frame aperture with the scaffold portion wherein said valve leaf frames are deflectable with respect to said scaffold portion so as to extend in overlying registry with the passageway between a first position and a second position, and sealing each said valve leaf aperture with a biocompatible non-thrombogenic fluid impermeable material such that when the leaflet portion is in said first position, fluid flow through said passageway is substantially restricted.
Claim 3
Dependent Claim
27 words
The method of forming a prosthetic valve of claim 1 , further comprising the steps of biasing each of said valve leaf frames towards the first position.
Claim 4
Dependent Claim
33 words
The method of forming a prosthetic valve of claim 1 , further comprising the step of biasing said valve leaflet portion towards the second position whereby fluid flow through said passageway is permitted.
Claim 5
Dependent Claim
31 words
The method of forming a prosthetic valve of claim 1 , further comprising the step of coating the material sealing each said valve leaf frame aperture with a growth inhibiting drug.
Claim 6
Dependent Claim
55 words
The method of forming a prosthetic valve of claim 1 , further comprising the steps of providing an elongate mandrel having a cylindrical outer surface; positioning a first biocompatible non-thrombogenic fluid impermeable liner over the outer surface of the mandrel; positioning said trellis over said first liner; and affixing said first liner to said trellis.
Claim 7
Dependent Claim
25 words
The method of forming a prosthetic valve of claim 1 , further comprising the step of forming a radially collapsible trellis having a shape memory.
Claim 8
Dependent Claim
38 words
The method of forming a prosthetic valve of claim 6 , wherein the step of forming a radially collapsible trellis further includes laying a wire in an undulating manner in the shape of a preform of the trellis.
Claim 9
Dependent Claim
43 words
The method of forming a prosthetic valve of claim 7 , wherein the laying step further comprises the steps of alternately forming an aperture defined by a valve leaflet frame and said body scaffold and forming an opening defined by said scaffold portion.
Claim 10
Dependent Claim
46 words
The method of forming a prosthetic valve of claim 1 , further comprising the step of deflecting each said leaflet frame portion with respect to the body scaffold portion component to impart a shape memory to the preform in one of said first and second positions.
Claim 11
Dependent Claim
23 words
The method of forming a prosthetic valve of claim 9 , further comprising the step of imparting a curve to the leaflet frame.
Claim 12
Dependent Claim
38 words
The method of forming a prosthetic valve of claim 9 , wherein the imparting step further comprises the step of heat setting a shape memory alloy at a temperature above its austenitic start temperature in a desired shape.
Claim 13
Dependent Claim
27 words
The method of forming a prosthetic valve of claim 5 , further comprising the step of positioning a second biocompatible fluid impermeable non-thrombogenic liner over the scaffold.
Claim 14
Dependent Claim
26 words
The method of forming a prosthetic valve of claim 12 , further comprising the step of positioning said second fluid impermeable liner opposite said first liner.
Claim 15
Dependent Claim
35 words
The method of forming a prosthetic valve of claim 12 , further comprising the step of positioning said second fluid impermeable liner to be substantially longitudinally coextensive with said first liner along said scaffold portion.
Claim 16
Dependent Claim
47 words
The method of forming of prosthetic valve of claim 14 , wherein said step of positioning said second fluid impermeable liner opposite said first liner and substantially coextensive with said first liner along said scaffold portion further comprises positioning said second liner over said valve frame portion.
Claim 17
Dependent Claim
37 words
The method of forming a prosthetic valve of claim 1 , further comprising the step of providing anchoring means to the prosthesis for engaging a lumen wall upon emplacement at a selected site of a body lumen.
Claim 18
Dependent Claim
51 words
The method of forming a prosthetic valve of claim 1 , further comprising the step of providing an elongate mandrel having a cylindrical outer surface; positioning said trellis over the outer surface of said mandrel; and positioning a first biocompatible non-thrombogenic fluid impermeable liner over the outer surface of said trellis.
Claim 19
Dependent Claim
25 words
The method of forming a prosthetic valve of claim 1 , further comprising the step of incorporating cultured tissue cells into said valve frame aperture.
Claim 20
Dependent Claim
25 words
The method of forming a prosthetic valve of claim 18 , further comprising the step of covering each said valve leaf frame with cultured tissues.
Claim 21
Dependent Claim
42 words
The method of forming a prosthetic valve of claim 18 , further comprising the step of forming each said valve leaf frame from a bioabsorbable material to be displaced by said cultured tissue cells upon said cells maturing within the body lumen.
Claim 22
Dependent Claim
23 words
The method of forming a prosthetic valve of claim 18 , further comprising the step of forming said trellis from a bioabsorbable material.
Claim 23
Dependent Claim
23 words
The method of forming a prosthetic valve of claim 18 , further comprising the step of forming said trellis from a metallic material.
Claim 24
Dependent Claim
40 words
The method of forming a prosthetic valve of claim 22 , further comprising the step of forming said trellis from a shape memory material selected from the group consisting of an alloy of nickel and tin and a polymeric material.
Claim 25
Dependent Claim
66 words
The prosthetic valve of claim 1 , further including a second radially collapsible open tubular scaffold having a cylindrical inner surface and an opposing cylindrical outer surface, said inner surface defining an elongate fluid conduit being substantially coaxially-aligned with said passageway of said valve, said second scaffold affixed to said body scaffold and extending at least one of said upstream and downstream direction from said valve.
Claim 26
Dependent Claim
31 words
The prosthetic valve of claim 1 , wherein said second scaffold further includes a biocompatible fluid impermeable non-thrombogenic lining on at least one of said inner surface and said outer surface.
References Cited (Backward Citations)
US15192A
Cited
US4759759A
Cited
US5863531A
Cited
US5770193A
Cited
US5770417A
Cited
US5759830A
Cited
US4851001A
Cited
US5413599A
Cited
US5500014A
Cited
US5840081A
Cited
US5358518A
Cited
EP0520126A1
Cited
US5545214A
Cited
US5123919A
Cited
WO1994004099A1
Cited
US5409019A
Cited
US5843180A
Cited
US6027525A
Cited
US5855601A
Cited
US5855602A
Cited
US6126686A
Cited
US6015431A
Cited
EP0850607A1
Cited
WO1998032400A1
Cited
US5851232A
Cited
US5957949A
Cited
US5855597A
Cited
US5954766A
Cited
US6530952B2
Cited
US6254564B1
Cited
FR2788217A1
Cited
US6110201A
Cited
US6299637B1
Cited
US6440164B1
Cited
US6458153B1
Cited
US6503272B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-02-02 | 2007-08-04 | 2008-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-02-02 | 2011-08-04 | 2012-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-02-02 | 2015-08-04 | 2016-02-03 | $7700.00 | Window Closed / Lapsed |