Apparatus and method for reducing mitral regurgitation
First Claim
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1. Apparatus for reducing mitral regurgitation, the apparatus comprising:
- a bendable elongated body adapted to be inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the elongated body being adjustable between a first configuration adapted to be delivered into the coronary sinus and a second configuration adapted to exert a force onto the posterior annulus, the body comprising;
a distal end section having a plurality of proximally-extending barbs;
a proximal end section having a plurality of distally-extending barbs; and
at least one spring segment connecting said distal end section to said proximal end section, said at least one spring segment being adapted to apply a force to said distal end section and said proximal end section so as to urge said distal end section and said proximal end section together;
whereby when said elongated body is inserted into the coronary sinus in the first configuration, said at least one spring segment will cause said elongated body to assume the second configuration so as to exert the force on the posterior annulus and thereby reduce mitral regurgitation.
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Abstract
Apparatus for reducing mitral regurgitation, by applying a force to the wall of the coronary sinus so as to force the posterior leaflet anteriorly and thereby reduce mitral regurgitation.
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Citations
13 Claims
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1. Apparatus for reducing mitral regurgitation, the apparatus comprising:
a bendable elongated body adapted to be inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the elongated body being adjustable between a first configuration adapted to be delivered into the coronary sinus and a second configuration adapted to exert a force onto the posterior annulus, the body comprising;
a distal end section having a plurality of proximally-extending barbs;
a proximal end section having a plurality of distally-extending barbs; and
at least one spring segment connecting said distal end section to said proximal end section, said at least one spring segment being adapted to apply a force to said distal end section and said proximal end section so as to urge said distal end section and said proximal end section together;
whereby when said elongated body is inserted into the coronary sinus in the first configuration, said at least one spring segment will cause said elongated body to assume the second configuration so as to exert the force on the posterior annulus and thereby reduce mitral regurgitation. - View Dependent Claims (2, 3, 4, 5)
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6. Apparatus for reducing mitral regurgitation, the apparatus comprising:
a variable elongated body adapted to be inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the variable elongated body being adjustable between a first configuration adapted to be delivered into the coronary sinus and a second configuration adapted to exert a force onto the posterior annulus, the variable elongated body comprising;
a first anchor comprising a first elongated section and a first anchor element disposed at one end thereof;
a second anchor having a second elongated section and a second anchor element disposed at one end thereof;
a crimp having an opening therein and being adapted to selectively close down the size of the opening;
said first anchor, said second anchor and said crimp being arranged so that said first elongated section and said second elongated section extend through said opening, with said first anchor element and said second anchor element being displaced from one another;
whereby said elongated body may be positioned in said first configuration wherein first anchor element and said second anchor element are displaced from one another by a first distance, said elongated body may be deployed in said coronary sinus, and said elongated body may thereafter be moved into said second configuration wherein said first anchor and said second anchor are displaced from one another by a second, shorter distance, whereby to exert the force on the posterior annulus and thereby reduce mitral regurgitation. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method for reducing mitral regurgitation, the method comprising the steps of:
providing a prosthesis comprising;
a bendable elongated body adapted to be inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the elongated body being adjustable between a first configuration adapted to be delivered into the coronary sinus and a second configuration adapted to exert a force onto the posterior annulus, the body comprising;
a distal end section having a plurality of proximally-extending barbs;
a proximal end section having a plurality of distally-extending barbs; and
at least one spring segment connecting said distal end section to said proximal end section, said at least one spring segment being adapted to apply a force to said distal end section and said proximal end section so as to urge said distal end section and said proximal end section together;
whereby when said elongated body is inserted into the coronary sinus in the first configuration, said at least one spring segment will cause said elongated body to assume the second configuration so as to exert the force on the posterior annulus and thereby reduce mitral regurgitation;
positioning the prosthesis in the coronary sinus while in the first configuration; and
reconfiguring the prosthesis into the second configuration.
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13. A method for reducing mitral regurgitation, the method comprising the steps of:
providing a prosthesis comprising;
a variable elongated body adapted to be inserted into the coronary sinus of a patient in the vicinity of the posterior leaflet of the mitral valve, the variable elongated body being adjustable between a first configuration adapted to be delivered into the coronary sinus and a second configuration adapted to exert a force onto the posterior annulus, the variable elongated body comprising;
a first anchor comprising a first elongated section and a first anchor element disposed at one end thereof;
a second anchor having a second elongated section and a second anchor element disposed at one end thereof;
a crimp having an opening therein and being adapted to selectively close down the size of the opening;
said first anchor, said second anchor and said crimp being arranged so that said first elongated section and said second elongated section extend through said opening, with said first anchor element and said second anchor element being displaced from one another;
whereby said elongated body may be positioned in said first configuration wherein first anchor element and said second anchor element are displaced from one another by a first distance, said elongated body may be deployed in said coronary sinus, and said elongated body may thereafter be moved into said second configuration wherein said first anchor and said second anchor are displaced from one another by a second, shorter distance, whereby to exert the force on the posterior annulus and thereby reduce mitral regurgitation;
positioning the prosthesis in the coronary sinus while in the first configuration; and
reconfiguring the prosthesis into the second configuration.
Specification