Opposing disk device for grasping cardiac valve tissue

Abstract

The present disclosure relates to repair devices and methods for repair of regurgitant tricuspid valves. A repair method includes positioning a repair device at a tricuspid valve in a collapsed configuration. The repair device includes a proximal grasping assembly movable between a first position and a second position and a distal grasping assembly movable between a third position and a fourth position. An actuator rod operatively connected to each of the proximal grasping assembly and the distal grasping assembly so that distal movement of the actuator rod moves the proximal grasping assembly proximally and the distal grasping assembly distally.

What is claimed is: 
     
         1 . An interventional device configured for repair of a regurgitant tricuspid valve, the repair device comprising:
 a proximal grasping assembly movable between a first position and a second position;   a distal grasping assembly movable between a third position and a fourth position, the distal grasping assembly being spaced apart from the proximal grasping assembly so as to define a grasping space therebetween;   an actuator rod operatively connected to each of the proximal grasping assembly and the distal grasping assembly; and   a locking assembly mounted to the actuator rod, the locking assembly being configured to transition from an open configuration allowing translation of the actuator rod to a binding configuration limiting translation of the actuator rod.   
     
     
         2 . The interventional device of  claim 1 , wherein the locking assembly comprises a first locking plate and a second locking plate. 
     
     
         3 . The interventional device of  claim 2 , wherein the first locking plate and the second locking plate are biased toward the binding configuration. 
     
     
         4 . The interventional device of  claim 3 , wherein the locking assembly comprises a lock control configured to selectively release the first locking plate and the second locking plate and allow the first locking plate and the second locking plate to transition to the binding configuration. 
     
     
         5 . The interventional device of  claim 4 , wherein the first locking plate and the second locking plate abut a distal end of the lock control. 
     
     
         6 . The interventional device of  claim 5 , wherein the first locking plate and the second locking plate further comprising holes configured to receive the actuator rod. 
     
     
         7 . The interventional device of  claim 1 , wherein the locking assembly comprises a first locking plate cooperating with a leaf spring. 
     
     
         8 . The interventional device of  claim 7 , wherein the locking assembly comprises a pivot space within a lock control, the first locking plate being configured to move within the pivot space from the open configuration to the binding configuration. 
     
     
         9 . The interventional device of  claim 8 , further comprising a holding structure defining the pivot space. 
     
     
         10 . An interventional device configured for repair of a regurgitant tricuspid valve, the repair device comprising:
 a proximal grasping assembly movable between a first position and a second position;   a distal grasping assembly movable between a third position and a fourth position, the distal grasping assembly being spaced apart from the proximal grasping assembly so as to define a grasping space therebetween for grasping tricuspid valve leaflets when the proximal grasping assembly and the distal grasping assembly are in second position and fourth position, respectively, and are deployed at a tricuspid valve;   an actuator rod operatively connected to each of the proximal grasping assembly and the distal grasping assembly so that distal movement of the actuator rod simultaneously moves the proximal grasping assembly proximally and the distal grasping assembly distally; and   a locking assembly mounted to the actuator rod, the locking assembly being configured to transition from an open configuration allowing translation of the actuator rod to a binding configuration limiting translation of the actuator rod.   
     
     
         11 . The interventional device of  claim 10 , wherein the locking assembly comprises a first locking plate and a second locking plate. 
     
     
         12 . The interventional device of  claim 11 , wherein the first locking plate and the second locking plate are biased toward the binding configuration. 
     
     
         13 . The interventional device of  claim 12 , wherein the locking assembly comprises a lock control configured to selectively release the first locking plate and the second locking plate and allow the first locking plate and the second locking plate to transition to the binding configuration. 
     
     
         14 . The interventional device of  claim 10 , wherein the locking assembly comprises a first locking plate cooperating with a leaf spring. 
     
     
         15 . The interventional device of  claim 14 , wherein the locking assembly comprises a pivot space within a lock control, the firs locking plate being configured to move within the pivot space from the open configuration to the binding configuration. 
     
     
         16 . An interventional system configured for repair of a regurgitant tricuspid valve, the repair system comprising:
 a delivery system, comprising:   a sheath;   a delivery catheter disposed within the sheath so as to be translatable within the sheath, the delivery catheter including a connection element disposed at a distal end of the delivery catheter; and   an interventional device, including:   a proximal grasping assembly movable between a pre-deployed position and a deployed position;   a distal grasping assembly movable between a pre-deployed position and a deployed position, the distal grasping assembly being spaced apart from the proximal grasping assembly so as to define a grasping space therebetween for grasping tricuspid valve leaflets when the proximal grasping assembly and the distal grasping assembly are in deployed positions and are deployed at a tricuspid valve;   an actuator rod operatively connected to each of the proximal grasping assembly and the distal grasping assembly so that distal movement of the actuator rod simultaneously moves the proximal grasping assembly proximally and the distal grasping assembly distally; and   a locking assembly mounted to the actuator rod, the locking assembly being configured to transition from an open configuration allowing translation of the actuator rod to a binding configuration limiting translation of the actuator rod,   wherein the sheath is configured to be retractable relative to the delivery catheter to expose the interventional device and enable the distal grasping assembly and the proximal grasping assembly to move toward the deployed configuration.   
     
     
         17 . The interventional device of  claim 16 , wherein the locking assembly comprises a first locking plate and a second locking plate, the first locking plate and the second locking plate being biased toward the binding configuration. 
     
     
         18 . The interventional device of  claim 17 , wherein the first locking plate and the second locking plate further comprise holes configured to receive the actuator rod. 
     
     
         19 . The interventional device of  claim 16 , wherein the locking assembly comprises a first locking plate cooperating with a leaf spring. 
     
     
         20 . The interventional device of  claim 19 , wherein the locking assembly comprises a pivot space defined by a holding structure, the first locking plate being configured to move within the pivot space from the open configuration to the binding configuration.