Surgical devices having a plurality of outwardly-biased flexible fins capable of inward movement such that the fins converge to provide both a passageway for surgical instruments to traverse towards a surgical site, and provide a substantially impermeable seal, thus providing for fluid retention during the surgical procedure. The outwardly-biased flexible fins 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.

A probe unit includes, a probe configured to treat a bone by ultrasonic vibration, a hollow sheath which surrounds the probe and which has a first portion at a small distance from a central axis, and a second portion at a greater distance from the central axis than the first portion, and a knob configured to rotate the sheath relative to the probe between a first position for insertion between the bone and a living tissue facing the bone so that the first portion is located between the bone and the living tissue and a second position for insertion between the bone and the living tissue so that the second portion is located between the bone and the living tissue.

A protective assembly for use during laparoscopic surgery, the assembly comprising: a thin membrane formed from non-toxic material, the membrane being sufficiently thin and maneuverable to be passed through a cannula of a trocar; a flexible connector extending from the thin membrane; and an insertable shaft dimensioned to be passed through the cannula wherein a distal portion of the shaft is anchored to the flexible connector.

A method for removing tissues may comprise disposing a tissue resection device at a target tissue site, causing the tissue resection device to resect a core of tissue from the target tissue site, removing the core of tissue from the body, wherein the removing the core of tissue from the body creates a core cavity at the target tissue site.

A tissue guard includes a body defining an open proximal end, an open distal end, and a lumen extending through the body between the open proximal end and the open distal end. The tissue guard further includes a lip extending radially outwardly from the open proximal end of the body. The lip includes a plurality of spaced-apart cut-outs defined about the outer circumference of the lip to define a plurality of tabs of the lip. Each tab includes an outer edge segment. The body and the lip are monolithically formed as a single piece of material.

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.

According to an aspect, a medical device includes an elongate member and a sleeve. The elongate member defines a lumen and has a first end portion and a second end portion. The second end portion has a first configuration and a second configuration. The second end portion has a first size when the second end portion is in its first configuration and a second size when the second end portion is in its second configuration. The first size is smaller than the second size. The second end portion is biased to its second configuration. The sleeve defines a lumen extending from a first end portion of the sleeve to a second end portion of the sleeve.

An endoscope and methods of use thereof are provided, which includes at least one multi-functional extending arm supporting a plurality of imaging, lighting and other sensory elements. The arms provide a mounting platform upon which cameras, lights and sensors may be mounted to generate multiple-angled images and video, arena-like lighting and other data for performing a minimally-invasive surgical (MIS) procedure. The arms may be inserted through a single portal in the endoscope and extended outward in multiple directions from the single portal once inserted into a body cavity. The endoscope may also include support arms which support the extending arms within the body cavity and a stabilization plate which anchors the endoscope to an external surface of the body. An endoscopic tool with optical, lighting and other sensors integrated into a functional end is also provided.

A vessel harvesting apparatus for removing a blood vessel from a patient includes collection and conditioning (i.e., treatment) of expelled insufflation gas prior to releasing the gas into the air of the operating room. An endoscopic instrument has a distal end with a vessel harvesting tip and has a proximal end with a handle. An insufflation channel is configured to convey an insufflation gas subcutaneously into a dissected space within the patient. A removal channel is configured to evacuate fluidic contents from the dissected space, wherein the fluidic contents include insufflation gas and biological impurities. A processor/separator is coupled to the removal channel to process the fluidic contents to retain at least some of the biological impurities and to exhaust the insufflation gas.

Some embodiments of an anchor device may include bendable anchor mechanism that is deployable in a subcutaneous layer to releasably secure the anchor device to a patient's body. Certain embodiments of the anchor mechanism may include one or more barbs that flexibly bend in response to an insertion or removal force. As such, the anchor mechanism may be inserted into a subcutaneous layer, and removed from the subcutaneous layer, without the need for a separate actuation device to extend or retract the barbs.