Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1998049974) LOW PROFILE INTRODUCER AND ROTATOR FOR A HEART VALVE PROSTHESIS
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

WHAT IS CLAIMED IS:
1. A device for positioning during implantation a heart valve prosthesis (50) having a general annular configuration with an inside diameter comprising:
a handle having a proximal end and a distal end; and
a low profile introducer/rotator (2) coupled to the distal end of the handle, characterized by
said introducer/rotator (2) having a low profile and having a length (64) and a width (62), the length (64) in operative relation to said diameter during engagement with the prosthesis (50), and a width (62) less than said diameter.
2. The device of claim 1 , wherein the introducer/rotator (2) is rigidly connected to said handle and is configured to fit in an intercostal space between a patient's ribs.
3. The device of claim 1, wherein the valve prosthesis (50) has an annulus defining a plane, and said introducer/rotator (2) further comprises an axial contact surface parallel to said plane, and a radial contact surface transverse to said plane during engagement with the prosthesis.
4. The device of claim 1, wherein the ratio of length to width is greater than 1.
5. The device of claim 1, wherein the prosthesis (50) further comprises leaflet occluders (52) rotatably attached to an annular valve body (66), said occluders (52) capable of rotatating from an open position to a closed position, and wherein the introducer/rotator (2) further comprises a protective groove (34) for said occluders.
6. The device of claim 5 wherein said groove (34) maintains the occluders (52) in the open position.
7. The device of claim 1 , wherein the introducer/rotator (2) further comprises self-aligning surfaces (22, 24) to aid in engaging the prosthesis (50).
8. A device for engaging during implantation a heart valve prosthesis (50) having a generally annular configuration around an axis and having an internal diameter and an inner surface defining a central passageway through which blood flows, said surface being generally cylindrical and including two opposing flat portions (70), and a pair of leaflet occluders (52) positioned in the flat portions of said surface, comprising:
a handle having a proximal and a distal end; and
a low profile introducer/rotator (2)
characterized by said introducer/rotator (2) having a length (64) and a width (62), the length (64) operatively related to said diameter between said flat portions (70), and said width (62) substantially parallel to said flat portions (70) when the introducer/rotator (2) is engaged with said prosthesis (50).
9. The device of claim 8, wherein the introducer/rotator (2) further comprises an engaging surface (20) along said width, said surface (20) capable of applying rotational force to the prosthesis (50).
10. The device of claim 8, wherein the occluders (52) are capable of rotatating from an open position to a closed position, and wherein the introducer/rotator (2) further comprises a protective groove (34) in operative relation to the occluders.
11. The device of claim 8 wherein said groove (34) maintains the occluders (52) in the open position.
12. The device of claim 8, wherein the introducer/rotator (2) further comprises self-aligning surfaces (22, 24) to aid in engaging the prosthesis (50).
13. The device of claim 8, said introducer/rotator (2) further comprising an axial contact surface substantially parallel to said axis, and a radial contact surface substantially transverse to said axis during engagement with the prosthesis.