A surgical apparatus used in an ostomy procedure includes an introducer configured for atraumatic insertion in a tissue opening and a dilator. The dilator includes an elongate body and an extension movably coupled to the elongate body. A distal portion of the elongate body is disposed within and axially movable relative to the introducer between first and second positions. The extension is configured to move from a retracted state to an expanded state in response to movement of the dilator relative to the introducer from the first position to the second position. In the retracted state, the extension is disposed within the introducer, and in the expanded state the extension projects laterally outward from the distal portion of the elongate body.

An anastomosis set for anastomosing a first end to be anastomosed with a second end to be anastomosed, such anastomosis set comprising: a first manipulator, with a first telescoping part at a distal end thereof, the first telescoping part is used for telescoping toward the first end to be anastomosed; a second manipulator, with a second telescoping part at a distal end thereof, the second telescoping part is used for telescoping toward the second end to be anastomosed; and an anastomosis mechanism for anastomosing the first end to be anastomosed with the second end to be anastomosed; the first manipulator including a first exit part through which the first manipulator will be removed from the first end to be anastomosed after anastomosing; the second manipulator has a second exit part, through which the second manipulator will be removed from the second end to be anastomosed after anastomosing.

Disclosed are devices and methods for providing simple, fast, effective, and repeatable anastomotic graft connections, which can reduce (or eliminate) risks associated with graft anastomoses, thus improving patient outcomes. An example embodiment is an anastomotic graft connection device that includes a connector and a cuff. The connector includes a first flared end and a second flared end. The first flared end is configured to be inserted into a vessel (e.g., blood vessel). At least the second flared end is configured to be attached to a graft. The cuff includes an inner ring and an outer ring. The inner ring is configured to secure the graft to at least the second flared end of the connector, and the outer ring is configured to exert force on the vessel to seal the first flared end of the connector against an inner wall of the vessel.

Devices, systems, and methods are disclosed for inverting and closing a left atrial appendage. Certain methods include the steps of inverting a distal portion of a left atrial appendage and constraining the inverted portion using at least a snare device configured to be fit around the inverted portion of the left atrial appendage and closed, so that the inverted portion is securely circumscribed and closed. Devices and systems related to such methods are also described and include a catheter system comprising a vacuum tube and a snare slidably disposed within a catheter.

Disclosed embodiments include apparatuses, systems, and methods for facilitating surgical anastomosis between bodily passages. In an illustrative embodiment, an eversion mechanism is configured to partially evert a distal portion of an opening of a receiving passage and further configured to leave a proximal portion of the opening of the receiving passage in a non-everted position. A donor support mechanism is configured to partially evert a distal portion of an opening at an end of a donor passage and further configured to leave a first proximal portion of the end of the donor passage in a non-everted position. The donor support mechanism is further configured to form a passage juncture at the end of the donor passage and the opening of the receiving passage. A suturing mechanism is configured to motivate a filament through a generally helical path around the passage juncture to suture the donor passage to the receiving passage.

Disclosed embodiments include apparatuses, systems, and methods for facilitating anastomosis between bodily passages. In an illustrative embodiment, an eversion mechanism is configured to engage a first external surface of a receiving passage adjacent a first opening in the receiving passage in order to create a receiving flange presenting a first interior face. A donor support mechanism is configured to support a donor passage with an opening in an end in an everted position that forms a donor flange presenting a second interior face. The donor support mechanism is further configured to present the second interior face of the donor flange against the first interior face of the receiving flange to present a passage juncture. A suturing mechanism is configured to motivate a filament through a helical path around the passage juncture to suture the second interior face of the donor passage to the first interior face of the receiving passage.

A method of resecting entire layers of a digestive tract includes: an insertion step of inserting an endoscope into the digestive tract; an everting step performed after the insertion step, to suture mucosal layers located on both sides of a target region including a lesion, cover the target region with the mucosal layers, and evert a tract wall including the target region to a side of an abdominal cavity, in the digestive tract; and an incision step performed after the everting step, to position an incision tool between the target region and the mucosal layers to incise the tract wall around the lesion by the incision tool.

A system for anastomosis of a tubular structure, the system comprising a device configured such that, when is the device arranged in the tubular structure, an anastomosis is obtained in the tubular structure and a cavity is formed between the device and the tubular structure, and a pump in fluid communication with the cavity and configured to temporarily apply a negative pressure to the cavity.

The present invention provides a device for connection of a biological structure with at least one other structure, the device including a first tubular member and a second tubular member and at least one arm for connecting the first tubular member to the second tubular member. The first tubular member includes a first opening at a proximal extremity of the tubular member, a second opening at a distal extremity of the tubular member and a central cavity within the body of the tubular member for accommodating the biological structure. The second tubular member includes a first opening at a proximal extremity of the tubular member, a second opening at a distal extremity of the tubular member and a central cavity within the body of the tubular member. The present invention further provides methods of connecting one or more structures, such as biological structures and grafts.

The present invention provides devices for connecting biological structures. The device features a tubular member that includes a tubular body. The tubular member may include a plurality of interwoven lengths configured for reversible radial enlargement and reversible radial contraction of the tubular member. In some aspects the tubular member may include a net design of interconnected cells configured for reversible radial enlargement of the tubular member. The tubular member includes a distal opening, a proximal opening, a central cavity within the tubular member for receiving and retaining a biological structure and a plurality of spaced apart protrusions protruding out from the exterior surface of the body of the device for fixing to the device an end of the biological structure and for fixing a second structure to the device to facilitate connecting the biological structure to the second structure.