Valve leaflet connecting device

Abstract

A valve leaflet connecting device includes: a base; and first and second followers extending from the base. A first arm extends from the first follower in a direction away from the second follower andaway from the base to define an acute angle between the first follower and first arm for capturing a first leaflet there between. A second arm extends from the second follower in a direction away from the first follower and away from the base to define an acute angle between the second follower and second arm for capturing a second leaflet there between, The first and second followers are resiliently deformable between: (i) an open condition, in which: the point from which the first arm extends from the first follower; and the point from which the second arm extends from the second follower,are spaced more than 15mm; and (ii) a closed condition, in which: the point from which the first arm extends from the first follower; and the point from which the second arm extends from the second follower, are spaced less than 5mm. Deforming means deform the followers towards the closed condition. A positioner extends from the base, between the first and second followers, and a fastener releasably secured to the positioner, includes first and second fastener jaws. The first and second jaws: extend away from the base; and are movable between: (i) a splayed condition in which leaflets may be received between the first and second fastener jaws; and (ii) a securing condition in which the first and second fastener jaws secure the leaflets there between. In use: (i) the first and second followers may be: passed axially through a valve, between first and second valve leaflets; and resiliently deformed by opening and closing of the valve leaflets; (ii) the first arm may capture the first leaflet between the first arm and the first follower, and the second arm may capture the second leaflet between the second arm and the second follower, with the first and second followers disposed between the first and second leaflets; (iii) the deforming means may deform the first and second followers towards the closed condition, thereby moving the first and second leaflets towards each other; (iv)the fastener may receive the first and second leaflets between the fastener jaws when the fastener jaws are in the spayed condition; and (v) moving the fastener jaws towards the securing condition secures the first and second leaflets to each other. Alternatively, the arms and fastener jaws may extend towards the base.

Description

Background technique [0001] The invention relates to a valve leaflet connecting device. More specifically, the present invention relates to a device for connecting mitral valve leaflets, the device comprising: [0002] (1) A pair of resilient followers that can be disposed between the valve leaflets and are sufficiently flexible and elastic (i.e., deformable) to follow the valve leaflets as they open and close; [0003] (2) an arm extending from each follower to capture the valve leaflet between the arm and the corresponding follower; [0004] (3) deformation means for moving the follower and the arm toward each other; and [0005] (4) A positioner that positions a fastener on the free end of the leaflets to hold the leaflets together. [0006] Various connection arrangements are known. For example: [0007] US5015246 "Endoscopic Stapling Apparatus and Method" describes staples positioned between the jaws of forceps that "open" the staples (ie, spread / separate the staple ...

AI Technical Summary

Problems solved by technology

A disadvantage of [0012] existing attachment devices is that the valve leaflets cannot be captured by the attachment device while allowing continuous opening and closing of the valve

Another disadvantage of [0013] existing attachment devices is the need for large leaflet capture devices to capture the valve leaflets as the valve opens and closes

In addition, complex controllers are required to position the leaflet capture device in the correct position to achieve satisfactory capture of the valve leaflets

In existing connection devices, large capture devices lead to large connection devices and delivery and access systems

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