WO1999066863A3 - Altering heart valve leaflet attachment geometry to influence the location and magnitude of maximum loaded stress on the leaflet - Google Patents

Altering heart valve leaflet attachment geometry to influence the location and magnitude of maximum loaded stress on the leaflet Download PDF

Info

Publication number
WO1999066863A3
WO1999066863A3 PCT/US1999/014189 US9914189W WO9966863A3 WO 1999066863 A3 WO1999066863 A3 WO 1999066863A3 US 9914189 W US9914189 W US 9914189W WO 9966863 A3 WO9966863 A3 WO 9966863A3
Authority
WO
WIPO (PCT)
Prior art keywords
leaflet
location
magnitude
influence
heart valve
Prior art date
Application number
PCT/US1999/014189
Other languages
French (fr)
Other versions
WO1999066863A9 (en
WO1999066863A2 (en
Inventor
Riyad E Moe
John Kenneth Ryder
Original Assignee
Sulzer Carbomedics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer Carbomedics Inc filed Critical Sulzer Carbomedics Inc
Priority to JP2000555551A priority Critical patent/JP2002518131A/en
Priority to CA002305730A priority patent/CA2305730A1/en
Priority to EP99930591A priority patent/EP1089676A2/en
Publication of WO1999066863A2 publication Critical patent/WO1999066863A2/en
Publication of WO1999066863A3 publication Critical patent/WO1999066863A3/en
Publication of WO1999066863A9 publication Critical patent/WO1999066863A9/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
    • A61F2/2415—Manufacturing methods

Abstract

The durability of tri-leaflet valves is improved by moving the point of maximum loaded stress on the free edge (18) of the leaflet (14) away from the location of stress risers. The point of maximum loaded stress is moved by changing the geometry of the attachment curve (16) between the leaflet (14) and the valve body (12). The geometry of the attachment curve (16) is changed by changing the shape of the valve body (12) or the shape of the leaflet (14).
PCT/US1999/014189 1998-06-24 1999-06-23 Altering heart valve leaflet attachment geometry to influence the location and magnitude of maximum loaded stress on the leaflet WO1999066863A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000555551A JP2002518131A (en) 1998-06-24 1999-06-23 A heart valve leaflet coupling structure that changes to affect the location and magnitude of the maximum load pressure on the leaflet
CA002305730A CA2305730A1 (en) 1998-06-24 1999-06-23 Altering heart valve leaflet attachment geometry to influence the location and magnitude of maximum loaded stress on the leaflet
EP99930591A EP1089676A2 (en) 1998-06-24 1999-06-23 Altering heart valve leaflet attachment geometry to influence the location and magnitude of maximum loaded stress on the leaflet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10348298A 1998-06-24 1998-06-24
US09/103,482 1998-06-24

Publications (3)

Publication Number Publication Date
WO1999066863A2 WO1999066863A2 (en) 1999-12-29
WO1999066863A3 true WO1999066863A3 (en) 2000-02-10
WO1999066863A9 WO1999066863A9 (en) 2001-06-28

Family

ID=22295429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/014189 WO1999066863A2 (en) 1998-06-24 1999-06-23 Altering heart valve leaflet attachment geometry to influence the location and magnitude of maximum loaded stress on the leaflet

Country Status (5)

Country Link
US (1) US6613086B1 (en)
EP (1) EP1089676A2 (en)
JP (1) JP2002518131A (en)
CA (1) CA2305730A1 (en)
WO (1) WO1999066863A2 (en)

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Also Published As

Publication number Publication date
CA2305730A1 (en) 1999-12-29
EP1089676A2 (en) 2001-04-11
WO1999066863A9 (en) 2001-06-28
WO1999066863A2 (en) 1999-12-29
JP2002518131A (en) 2002-06-25
US6613086B1 (en) 2003-09-02

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