Surgical visualization systems and related methods are disclosed herein, e.g., for providing visualization during surgical procedures. Systems and methods herein can be used in a wide range of surgical procedures, including spinal surgeries such as minimally-invasive fusion or discectomy procedures. Systems and methods herein can include various features for enhancing end user experience, improving clinical outcomes, or reducing the invasiveness of a surgery. Exemplary features can include access port integration, hands-free operation, active and/or passive lens cleaning, adjustable camera depth, and many others.

Various devices and methods are provided with respect to inserting multiple surgical instruments through a single surgical access device. A medical device including a flexible tissue retractor a releasable insert having multiple instrument openings, and a member such as a sleeve is disclosed. The insert can be in the form of an insert assembly including multiple components. The sleeve can support the insert with respect to the retractor such that the insert and sleeve can be removed together with the retractor remaining in the incision. A method of using the insert is also described.

Embodiments of a rotating assistant port device are presented. The assistant port device can be utilized to provide for additional assistant instruments in single port robotic surgery. In some embodiments, the assistant port device can be utilized for skin retraction during single port teleoperated robotic surgery.

A surgical access apparatus is presented including a cannula having a housing and a cannula shaft, the cannula shaft defining an internal lumen and a slot in communication with the internal lumen and an obturator insertable through the internal lumen of the cannula. The obturator includes an obturator shaft having a proximal end and a distal end and a tip member disposed at the distal end of the obturator shaft, the tip member configured to form an incision through tissue. An outer surface of the obturator shaft and the tip member defines a channel for receiving and directing insufflation fluid into a body cavity, a portion of the same channel also configured to guide a surgical instrument, such as a suture passer/grasper for closing an incision, towards and through the slot. In this way, the cannula and obturator can be employed both for forming an incision at the beginning of a surgical procedure and for closing the same incision at the conclusion of the surgical procedure.

There is provided a patient specific access retractor for use in surgery, for example, minimally invasive spinal surgery. There are also provided methods of using the access retractor in surgery.

A medical device includes an elongate member and a port. The elongate member defines a lumen extending from a first end portion of the elongate member to a second end portion of the elongate member. The elongate member defines a helical pathway configured to convey a fluid. The port defines a lumen. The lumen of the port being in fluid communication with the pathway.

A cannula assembly can allow an operator in an arthroscopic surgical procedure to control both an arthroscope and a surgical tool with a single hand. In some embodiments, for example, a scope tube may be combined with a tool tube to allow such control. The tool may be manipulated, for example, by causing the tool to rotate, and/or to move forward and backward in relation to the cannula assembly.

Methods and apparatus for treating disorders of the ear, nose, throat or paranasal sinuses, including methods and apparatus for dilating ostia, passageways and other anatomical structures, endoscopic methods and apparatus for endoscopic visualization of structures within the ear, nose, throat or paranasal sinuses, navigation devices for use in conjunction with image guidance or navigation system and hand held devices having pistol type grips and other handpieces.

A cannula mounting fixture may include a base, a first arm with a first cannula mounting bracket and a second arm with a second cannula mounting bracket. The first arm may be coupled to the base so that a first cannula mounted at the first mounting bracket is positioned within an opening in a patient's body. The second arm may be coupled to the base and includes a joint that allows a second cannula mounted at the second mounting bracket to be inserted through the opening. A cannula stabilizing fixture may include a base and a repositionable arm. The base may be configured to be securely and removably coupled to a first cannula that extends into an opening in a patient's body. The repositionable arm may include a first cannula holder coupled to the base and is configured to support a second cannula that extends into the opening.

Unitary endoscopic vessel harvesting devices are disclosed. In some embodiments, such devices may comprise an elongated body having a proximal end and a distal end. A conical tip may be disposed at the distal end of the elongated body. In addition, the surgical instrument may include one or more surgical instruments moveable in a longitudinal direction along an axis substantially parallel to a central longitudinal axis of the cannula from a retracted position proximally of a distal end of the tip to an advanced position toward the distal end of the tip to seal and cut a blood vessel.