An illuminating ring assembly is disclosed. The illuminating ring configured to be used with a surgical access element. The illuminating ring assembly comprises a housing defined by a cover and a wall member extending from the cover, wherein the cover and wall member cooperate to define a cavity therein, a light element configured to be disposed with the cavity, and an attachment mechanism configured to selectively attach the housing to a surgical access element. Wherein the cover and the light element both include an opening therethrough.

A craniocerebral operation passage is provided, including a guide device, a trocar, and an outer sheath. The guide device is used for penetrating into the brain of a patient; a connection hole is provided in the middle of the trocar and passes through the trocar in a direction of a central axis of the trocar; the connection hole and the trocar are coaxially disposed; the trocar can sheathe on a periphery of the guide device through the connection hole and can slide in a lengthwise direction of the guide device; the outer sheath is internally hollow for providing an operation passage; and the outer sheath can sheathe the periphery of the trocar. The craniocerebral operation passage is accurately located and can effectively protect brain tissues of a patient.

A containment bag assembly for extracting a tissue specimen comprises a bag having one or more segmenting wires, an outer tube comprising a proximal and distal end, a flexible ring configured to form a top opening of the containment bag, wherein the flexible ring comprises two ring subassemblies, each having a proximal and distal end, a flexible member positioned between and coupled to the distal ends of the two ring subassemblies, wherein, when the flexible member is in a collapsed position, the two ring subassemblies are in a collapsed position and the containment bag is configured to be stored within the outer tube, and wherein, when the flexible member is in an expanded position, the two ring subassemblies and the flexible member bias the top opening of the containment bag to an open position to enable placement of the tissue specimen within the containment bag.

Surgical devices having a plurality of outwardly-biased flexible fins capable of both inward convergence and outward flexion, provide for fluid retention and soft tissue retraction during surgical procedures. The outwardly-biased flexible fins also provide for soft tissue compression, decreasing the length of the lumen or passageway through which instruments pass, allowing for a wider range of movement of instruments and better access to the surgical site, especially in patients with greater amounts of fat tissue that would otherwise require longer lumen lengths in prior art endoscopic cannulas. An obturator assembly including a cannulated handle member with a cannulated shaft attached to said handle member, said shaft extending distally and terminating at a cannulated obturator tip. A hood structure found on such obturator tip may be used to secure one or more flexible fins prior to deployment.

A surgical drain including an introducer having a central axis, a proximal end, and a distal end. The proximal end disposed along the central axis and configured to couple to a drain. The distal end having a blunt distal tip and the introducer at least partially tapering from the proximal end to the distal end, wherein the introducer has a length of 30 cm or greater.

A surgical access assembly and method of use is disclosed. The surgical access assembly comprises an outer sheath and an obturator. The outer sheath and obturator are configured to be delivered to an area of interest within the brain. Either the outer sheath or the obturator may be configured to operate with a navigational system to track the location of either within the brain. Once positioned at a desired location, the obturator is removed, leaving a distal end of the outer sheath adjacent an area of interest, and creating a working corridor. Interrogation of the area of interest may be performed to evaluate a disorder and/or abnormality, as well as evaluate treatment regimes. Interventional devices may also be introduced to the area of interest, as well as a variety of treatments.

Disclosed herein is an obturator and/or cannula configured for insertion of a trocar assembly into a surgical cavity and allowing insertion of medical instruments into the surgical cavity through the cannula after removal of the obturator. The cannula can include an obturator for use in a trocar assembly. A trocar assembly is disclosed including a cannula having a shaft, optionally with a lumen, and one or more elements protruding outwardly from a surface of the lumen and an obturator. The obturator can comprise a shaft with one or more portions configured to accommodate the one or more elements protruding from the lumen surface when the obturator shaft is located in the lumen of the cannula.

Methods and apparatuses for peritoneal catheter placement are disclosed herein. An example method includes using a puncture device to create an access hole to a patient's peritoneal cavity. The puncture device includes a lumen that enables a guidewire to be inserted into the peritoneal cavity. The puncture device is then replaced with a catheter, which is inserted along the guidewire. A surgical seal is next applied to connect the catheter to adjacent patient muscle tissue. After the guidewire is removed, a tunneling device creates a pathway through fat tissue to anchor the catheter. An end of the tunneling device is aligned with an external piercing device to pierce the patient's skin from the outside, creating a catheter exit hole. An end of the catheter is connected to the tunneling device and pulled through the exit hole, thereby enabling the catheter to be connected to peritoneal dialysis tubing for a treatment.

Systems, methods, and devices are disclosed for robotic surgical systems including a robotic arm, the systems comprising an end effector attached to the robotic arm and retaining an access guide, and an initial access tool detachably connected to the access guide, wherein the initial access tool comprises a housing, a shaft extending from the housing coaxially through the access guide, and a distal tip attached to the shaft and protruding from a portion of the access guide distal to the end effector, wherein the housing is adapted to prevent rotation with respect to the access guide. In some embodiments, the access guide is adapted to retain an initial access tool and one or more of a burring tool, a drilling tool, or a tapping tool. In some embodiments, the initial access tool further comprises a step spaced from a distal end of the shaft, a rigid sleeve for placing over the shaft below the step, a spring for placing over the shaft below the step, and at least one detachable tip for engaging the distal end of the shaft, wherein the housing is adapted to prevent rotation with respect to the access guide.

The present disclosure relates to a needle including a wall structure, a cutting edge and a blunt contour. The needle advantageously can be used to deliver a sensor (such as a glucose or other analyte sensor) through an outer skin layer and into a sensor depth in a less invasive way than prior art needles. The size of the cutting edge is balanced against a portion of the distal wall structure that has blunt contours. Thus, the needle is capable of cutting the more durable outer skin layer (first phase) and then progressively stretching open the cut for further advancement into the subcutaneous layer (second phase). When the needle is sufficiently advanced, it is retracted leaving the sensor in a desired position. Early testing has shown a reduction of “dip and recover” from glucose sensors delivered using the needle.