An anchoring system for cannulas or tools to be inserted into a surgical workspace in the body, particularly the brain, of a patient. The system comprises a grommet which may be fixed to the skull to both secure the system to the skull and protect the skull opening from passage of cannulas and tools, a resilient clip with grasping jaws adapted to firmly grasp a cannula or tool, and a flexible membrane secured to the outer rim of the grommet and the clip.

A suture cleating system for arthroscopic or endoscopic cannula to facilitate suture management while preserving seal functionality. The suture cleating system includes an end cap with an aperture extending therethrough and one or more cleats extending therefrom. A cannula body extends distally from the end cap. A seal is connected between the cannula body and the end cap. The seal has a seal slit extending therethrough and the seal slit is substantially aligned with the aperture of the end cap. In use, a suture extends through the cannula, the seal slit, and the aperture in the end cap. The suture can be tensioned from the aperture in the end cap and secured in a suture slot between two cleats.

A polymeric device including: an elongated hollow tube having an outer surface; and a spiral fin wound around the outer surface of the hollow tube; wherein the hollow tube and the spiral fin are formed of a single unitary piece through a molding process. The polymeric device can further include a longitudinal projection projecting from the outer surface of the hollow tube, the longitudinal projection having a greater thickness than other portions of the hollow tube and the longitudinal projection extending at least a portion of a longitudinal length of the hollow tube.

A depth limiter that is configured to couple with a cannula of a surgical access device. The depth limiter includes first and second user contact portions and first and second biasing features. The first biasing feature includes a first resilient portion and a first gripping surface. The second biasing feature includes a second resilient portion and a second gripping surface. The first and second resilient portions are configured to move the respective first and second gripping surfaces from a fixed configuration to a movable configuration when the respective first and second user contact portions are actuated. In the fixed configuration, the first and second gripping surfaces collectively restrict axial movement of the depth limiter by directly contacting the cannula. In the movable configuration, the first and second gripping surfaces extend parallel to a longitudinal axis and allow for axial movement of the depth limiter relative to the cannula.

Systems and methods for preventing the seeding of cancerous cells during morcellation of a tissue specimen inside a patient's body and removal of the tissue specimen from inside the patient through a minimally-invasive body opening to outside the patient are provided. One system includes a cut-resistant tissue guard removably insertable into a containment bag. The tissue specimen is isolated and contained within the containment bag and the guard is configured to protect the containment bag and surrounding tissue from incidental contact with sharp instrumentation used during morcellation and extraction of the tissue specimen. The guard is adjustable for easy insertion and removal and configured to securely anchor to the body opening. Protection-focused and containment-based systems for tissue removal are provided that enable minimally invasive procedures to be performed safely and efficiently.

A surgical cannula includes a seal structure including a one-way check valve and a cannula body. The cannula body includes an insertion portion having a distal opening that is configured to be inserted into tissue, and a receiving portion that includes a proximal opening and is configured to reversibly receive the seal structure. In addition, the seal structure is configured to removably associate with the proximal opening of the cannula body, retain a positive pressure within the cannula body when engaged with the cannula body, and retain a positive pressure within the cannula body when an object is inserted through the cannula and the seal structure. Also, the cannula further includes one or more suture attachment structures extending outward laterally from the cannula body; and one or more internal recesses in an inner wall of the cannula located directly adjacent to the one or more suture attachment structures.

A cannula assembly including a camera system to help provide multiple viewing angles of a surgical site. This added visualization provides the surgeon with more comprehensive feedback during the surgical procedure, leading to better patient outcome and a reduction in the surgical failure rate. The cannula has a main lumen and a smaller secondary lumen and is insertable into the surgical site for easy surgeon adaptation. The camera is coupled to the secondary lumen toward the side of the cannula. This allows the camera to provide visualization without obstructing the main lumen for the use of tools. The camera wiring runs through a long tube connected to the camera and through a handle at the end of the tube without blocking access to the surgical site.

An anchoring system for cannulas or tools to be inserted into a surgical workspace in the body, particularly the brain, of a patient. The system comprises a mounting ring which may be fixed to the skull to both secure the system to the skull and protect the skull opening from passage of cannulas and tools, a resilient clip with grasping jaws adapted to firmly grasp a cannula or tool, and a flexible membrane secured to the outer rim of the mounting ring and the clip.

An implant delivery device may include an implant holding portion proximate the distal end, the implant holding portion being configured to retain a sheet-like implant during implantation of the implant. In addition, the implant holding portion may be configured to receive the implant with a fixed implant supporting flange member configured to support the implant on one side, and a movable implant supporting flange member. The movable implant supporting flange member may be configured to be slidable between a distal position and a proximal position, wherein, in the distal position, the movable implant supporting flange member and secures the implant against the fixed implant supporting flange member, and in the proximal position, the movable implant supporting flange member is withdrawn from the distal end of the implant delivery device, thus enabling release of the implant.

Various methods and devices are provided for use of a cannula. For example, provided herein is a flexible cannula having an elongate body with an elongate shaft extending between a proximal hub and a distal dam. A lumen can extend through the cannula. The dam is in the form of a flexible annular member formed on a distal end of the shaft. The dam and the hub have diameters greater than a diameter of the shaft. A flexible, expandable sleeve is removably positioned on the distal end of the shaft of the cannula. The sleeve deformably encapsulates the dam such that the dam is folded against the shaft of the cannula. An obturator is also provided having an elongate shaft configured to be removably positioned within the lumen of the cannula. The shaft can be configured to fit within the lumen in a clearance fit.