Systems and devices for reducing the size of an internal tissue opening

摘要

A medical system for treating an internal tissue opening can include a closure device and associated delivery device. The closure device can include a multi-cellular body portion operatively associated with a first anchor and a second anchor. The closure device can be configured to apply lateral force to tissue of the internal tissue opening for tissue approximation. The closure device can also include an ingrowth material. The delivery device can include an actuating assembly configured to partially deploy the closure device by a first movement, and deploy a second portion of the closure device by a second movement. The delivery device can also include a release assembly to selectively release or disconnect the closure device from the delivery device.

主权项

1. A delivery device for delivering a medical device from a catheter, the delivery device comprising:
a handle body defining a longitudinal axis extending therethrough; and an actuating assembly operatively associated with said handle body and configured to unsheathe the medical device from the catheter, said actuating assembly including a linear guide defining a linear slot extending parallel to the longitudinal axis and a helical guide defining a helical slot, said actuating assembly being adapted to move linearly with respect to said handle body to an end of the linear slot to unsheathe at least a first portion of the medical device from the catheter, and, once fully moved linearly along the linear guide, to then rotate with respect to said handle body along the helical slot of the helical guide to unsheathe at least a second portion of the medical device from the catheter; wherein said actuating assembly comprises a first member adapted to move linearly with respect to said handle body to unsheathe said at least a first portion of the medical device; wherein said actuating assembly comprises a second tubular member adapted to rotate with respect to said handle body to unsheathe said at least a second portion of the medical device, the first member slidably positioned relative to and movable within said second tubular member such that the second tubular member is rotatable relative to the first member; and wherein the linear slot is contiguous with the helical slot.