Tissue manipulation and securement system
View Patent ↗Tissue manipulation and securement systems are described herein. A tissue manipulation assembly is pivotably coupled to the distal end of a tubular member and has a lower jaw member and an upper jaw member pivotably coupled to the lower jaw member. A reconfigurable launch tube is also pivotably coupled to the upper jaw member and is used to urge the jaw members from a low-profile configuration to an open configuration for receiving tissue. The tissue manipulation assembly may be advanced through a shape-lockable endoscopic device, a conventional endoscope, or directly by itself into a patient. A second tool can be used in combination with the tissue manipulation assembly to engage tissue and manipulate the tissue in conjunction with the tissue manipulation assembly.
1. A tissue manipulation system, comprising:
a tissue grasping tool pivotably coupled to a distal end of an elongate shaft, the tissue grasping tool having a first jaw member pivotably coupled to the distal end of the elongate shaft, a second jaw member pivotably coupled to the first jaw member and having a channel formed therein, and a launch tube member attached to the second jaw member and adapted to urge the first and second jaw members between a low-profile delivery configuration in which a distal portion of the launch tube member is positioned substantially within the channel of the second jaw member and an expanded grasping configuration in which the distal portion of the launch tube member is positioned substantially outside of the channel of the second jaw member;
a lumen within the launch tube member;
an instrument within the lumen in the launch tube member; and
a tissue engagement device having a flexible shaft and a distal end effector disposed on the distal end of the shaft, the distal end effector being adapted to reversibly engage tissue and further adapted to be positioned endoluminally within the body lumen adjacent to the tissue grasping tool.
2. The system of claim 1 wherein the distal end of the launch tube is flexible and is substantially parallel to the second jaw member when the second law member is in the low-profile delivery configuration, and wherein the distal end of the launch tube is substantially perpendicular to the second jaw when the second jaw is in the expanded rasping configuration.
3. The system of claim 1 wherein the first jaw is longer than the second jaw.
4. The system of claim 1 wherein a distal end of the launch tube member is pivotably coupled to the second jaw member.
5. The system of claim 4 wherein the second jaw has a front end and a back end and the launch tube member is pivotally coupled to the second jaw at a position closer to the front end.
6. The system of claim 1 wherein the launch tube member comprises a distally located flexible portion.
7. The system of claim 6 wherein the launch tube member further comprises a rigid portion proximally of the flexible portion.
8. The system of claim 1 wherein the first and second jaw members are adapted to reconfigure into the expanded grasping configuration when the launch tube is urged proximally.
9. The system of claim 1 wherein the instrument comprises a needle having a tip moveable out of the of launch tube and through openings in the first and second jaws.