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Device and a method for treatment of atrioventricular regurgitation
| Details |
Inventors: Kimblad, Per Ola;
Assignee: Jomed N.V. (Ulestraten, NL)
Primary Examiner: Calvert; John J.
Assistant Examiner: Moran; Katherine
Attorney, Agent or Firm: Browdy and Neimark, P.L.L.C.
A device for treatment of atrioventricular regurgitation comprises a suturing means. The suturing means has such dimensions as to be introducible, via blood vessels leading to the heart, to two leaflets of the atrioventricular valve between an atrium and a corresponding ventricle of the heart. Further, the suturing means is designed for binding together the two leaflets in a position along the free edges of the leaflets. As a result, the closing of the valve is improved. A method of using the device comprises the steps of inserting the suturing means into a catheter, introducing the catheter to the heart, so as to position a distal end of the catheter close to two leaflets of an atrioventricular valve, capturing the free edges of the two leaflets with the suturing means in its open state, binding together the two leaflets by transition of the suturing means into its closed state, and retracting the catheter from the heart. |
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DETAILED DESCRIPTION The object of the invention is to provide a device and a method for treatment of atrioventricular regurgitation that will be applicable to a beating heart.
This is accomplished by a device according to claim 1 and a method according to claim 14.
Preferred embodiments of the device and the method are defined in the dependent claims 2-14, respectively.
Thus, a device for treatment of atrioventricular regurgitation comprises a suturing means having such dimensions as to be introducible, via blood vessels leading to the heart, to two leaflets of an atrioventricular valve between an atrium and a corresponding ventricle of the heart and being designed for binding together the two leaflets in a position along the free edges of the leaflets, whereby the closing of the atrioventricular valve is improved.
Preferably, the atrioventricular valve is the mitral valve between the left atrium and the left ventricle of the heart.
Diseases to the atrioventricular valves are much more common in the mitral valve than in the tricuspid valve.
Therefore the focus of the invention is on the treatment of the mitral valve although treatment of the tricuspid valve could work equally well using the device.
The suturing means is preferably transitional between two states, being open in a first state and substantially closed in a second state.
This makes the suturing means capable of reaching the free edges of the mitral leaflets in the first state and of bringing them closer to each other when transitioned into the second state.
In a preferred embodiment, the suturing means comprises a clip.
Preferably, the clip has two arms pivotally connected to each other at a first end thereof, the arms forming a V in the first state of the clip and being substantially parallel in the second state of the clip.
Consequently, the arms of the clip can capture both mitral leaflets in the first state and bring them closer together in the second state.
Desirably, the arms of the clip have second, free ends bent towards each other so that these ends of the arms in the second state of the clip are brought proximal to each other
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Heart Surgery 
