A surgical instrument includes a first member defining a passageway defining a first axis. A second member is positioned in the passageway and includes a lip extending at an angle relative to a second axis defined by the second member that engages a flange of the first member. A third member engages an outer surface of the first member. The third member includes an end surface. A fourth member defines a pathway having the first and second members disposed therein. The fourth member includes a first locking element. A fifth member includes a body including an inner surface that engages the third member. The fifth member includes a plurality of straps extending outwardly from the body. At least one of the straps includes a second locking element that engages the first locking element to fix the fourth member relative to the fifth member. Systems and methods are disclosed.

Embodiments described herein include devices, systems, and methods for reducing the distance between two locations in tissue. In one embodiment, an anchor may reside within the right ventricle in engagement with the septum. A tension member may extend from that anchor through the septum and an exterior wall of the left ventricle to a second anchor disposed along a surface of the heart. Perforating the exterior wall and the septum from an epicardial approach can provide control over the reshaping of the ventricular chamber. Guiding deployment of the implant from along the epicardial access path and another access path into and through the right ventricle provides control over the movement of the anchor within the ventricle. The joined epicardial pathway and right atrial pathway allows the tension member to be advanced into the heart through the right atrium and pulled into engagement along the epicardial access path.

A specialized obturator that has a curved configuration designed specifically for entry through the anterior joint and out the back of the knee in the ideal position for a posterior portal. The curved obturator is shaped to avoid intact knee ligaments and femoral condyles. The obturator is provided with an eyelet located at the tip and may be employed with a cannula similar to a PassPort Button cannula, but with one or more sutures placed through the neck behind the collar. A standard inside-out cannula may be used as well, but dimensioned for the specialized obturator.

An instrument for treating a sinus cavity includes a cutter member, a rotatable member, and a fluid passage. The cutter member has a lumen extending therealong, and the rotatable member is received within the lumen. The rotatable member has a helical blade projecting from a distal end portion. The cutter member is configured to translate relative to the rotatable member. Thereby, the cutter member and the rotatable blade are configured to form an opening into the sinus cavity. The fluid passage extends through the cutter member from an inlet to an outlet. The outlet is positioned proximal to the helical blade such that the outlet is configured to fluidly communicate with the sinus cavity. The inlet is configured to receive at least one of a fluid and a vacuum in order to communicate the respective fluid or vacuum to the outlet for irrigating or suctioning the sinus cavity.

A biopsy trocar (1) is provided for performing bone marrow biopsies. The trocar comprises a biopsy needle (2) having a cannula (4), and a mandrel (3) having a shaft (6), the shaft (6) being suitable for sliding in the biopsy needle (2). The cannula (4) has, at its distal end, at least one internal rib (12, 21) forming a helix portion on the internal wall of the cannula (4), and the shaft (6) has a helical groove (16, 26) that is able to cooperate with the internal rib (12, 21), the internal rib (12, 21) being suitable for retaining a sample of marrow in the needle (2).

A cannula with an augmented frictional surface to enhance physical security thereof. The augmented surface may be of unique morphology with rows or ribs. The ribs may be continuous or individual projections. They may be horizontal or screw-like. In one embodiment of screw-like ribs, rotations during placement and removal of the cannula may be employed.

A cannula with an augmented frictional surface to enhance physical security thereof. The augmented surface may be of unique morphology with rows or ribs. The ribs may be continuons or individual projections. They may be horizontal or screw-like. In one embodiment of screw-like ribs, rotations during placement and removal of the cannula may be employed.

Exemplary systems and methods encompass suture knot tools and suture knot tools pre-loaded with sutures for use in tendon repair and other surgical procedures. Related methods may include forming a nail knot between a suture and a tissue of a patient during a surgical procedure by drawing tissue into a port sleeve of an arthroscopic system, moving the port sleeve relative to a free end portion of the tissue and a nail knot cinch of a suture, to allow the nail knot cinch of the suture to contact the free end portion of the tissue; and tightening the nail knot cinch of the suture about the free end portion of the tissue, so as to form the nail knot with the suture and the tissue.

An intraosseous needle hub includes a hub body and a needle. The hub body has a hollow bore extending along a central axis from a proximal end to a distal end of the hub body. The needle has a hollow bore extending along the central axis and includes a proximal end attached to the hub body, a distal end including a needle tip, a threaded section at the needle tip configured to screw into bone of a patient, and a shoulder portion between the threaded section and the hub body. The shoulder portion is configured to resist movement of the needle through bone of a patient.

A dilator includes a shaft in a hollow shape whose distal end has a smaller outer diameter than the proximal end, and a connector on the proximal end of the shaft. A spirally-arranged protruding portion on an outer peripheral face of the shaft has gaps between neighboring sections along an axis of the shaft. The shaft has a first location and a second location located closer to the distal end than the first location and having an outer diameter smaller than at the first location. The spirally-arranged protruding portion has, with respect to the axis, an angle of inclination that is larger at the second location than at the first location.