Disclosed is a laparoscopic port perforation and closure device configured such that a perforation device for perforating a laparoscopic port on a patient's body, a trocar for maintaining the port and allowing various surgical tools to be introduced therethrough, and a closure device for closing the port are selectively used in a single trocar assembly. The device includes: a trocar (4) configured such that a handle is coupled to a first end of a sleeve formed in a tubular shape for being introduced into a perforated port; a penetrating tip (37) with an end tip thereof being exposed outside a second end of the sleeve by sequentially penetrating the handle and the sleeve of the trocar, and configured to enter an abdominal cavity by opening a port; and a combined perforation/closure assembly (3) closing the opened port by replacing the penetrating tip (37) with a closure cartridge (36).

A gyroscopic stabilizer configured to stabilize a surgical instrument relative to a patient includes a frame having a central axis and a hub configured to releasably couple with the surgical instrument. A first gyroscope assembly is coupled with a first frame portion and a second gyroscope assembly is coupled with a second frame portion. Each gyroscope assembly includes a gimbal pivotably coupled with the respective frame portion about a precession axis, a motor, and a rotor rotatably coupled with the motor about a spin axis perpendicular to the respective precession axis. Each gyroscope assembly is operable generate a torque in a torque plane that contains the respective spin axis and the respective precession axis. The torques are configured to resist rotation of the gyroscopic stabilizer relative to the patient about respective device axes that are perpendicular to the central axis and to one another.

A trocar apparatus includes a trocar and a trocar shaft. The trocar has a retractable-type camera section and a seal unit. The seal unit has a dome type seal and a first mount. A step is formed on the proximal side of a puncture member at the distal end of the trocar shaft. A relationship between a puncture member length L1 of the puncture member and an interval L2 in the axial direction of the trocar from the boundary position between a pipe section and a head section to a first mount opening satisfies conditional formula (A) given below:
L1>L2(A).

An integrated sheath assembly for inserting f a medical device such as a percutaneous pump into a vessel can include a first sheath having a first lumen defining a first opening between proximal and distal ends of the first sheath for passage of a portion of the pump and a second sheath having a second lumen defining a second opening between proximal and distal ends of the second sheath. The second lumen is expandable to allow passage of the first sheath containing the portion of the pump. The first sheath fills a space between the second sheath and the portion of the percutaneous pump when the first sheath containing the percutaneous pump is inserted into the second lumen. The first sheath has a first hub, and the second sheath has a second hub. In some embodiments, a single sheath and a movable connector can be integrated on the medical device.

A cannula may include a tubular section having a distal end, a proximal end, and forming a passage, and an elastomeric membrane coupled to and encircling the tubular section. The cannula may also include a valve that is movable between an open condition and a closed condition to selectively provide access to the passage defined by the tubular section. When the tubular section is inserted into an eye during an ophthalmic surgery, a concave surface of the elastomeric membrane acts as a suction cup to retain the cannula device onto a surface of an eye.

A surgical trocar includes a connection unit, which: connects a first trocar body and a second trocar body such that the second trocar body can vertically move relative to the first trocar body when a trocar unit is inserted into and drawn out of a trocar body unit having the first trocar body and the second trocar body, such that when an external force is not applied, a state of being unfolded in the radial direction of the first trocar body is maintained; and has an extension member extending in the longitudinal direction of the first trocar body when the trocar unit is inserted into the trocar body unit such that the second trocar body moves relative to the first trocar body.

A cannula seal assembly with a compatible flexible cannula. The cannula includes a rigid cannula body having proximal and distal body ends. The cannula body is composed of material having a first thickness. A flexible thread extends along at least a portion of the cannula body from the distal body end toward the proximal body end. The thread is composed of material having a second thickness, which is less than a first thickness. The cannula is attachable to a cannula seal assembly. The assembly includes a housing having a primary seal and a secondary seal therein. The assembly has a spacer connected between the primary seal and the secondary seal and a reservoir between the primary seal and the secondary seal.

Surgical access stabilization devices, systems, and methods are disclosed herein. For example, the devices, systems, and methods disclosed herein can be used during a surgical procedure to selectively establish, stabilize, and maintain a desired trajectory and/or positioning of a surgical access device. An exemplary surgical access stabilization device can include a pad with an adhesive distal facing surface to adhere to an anchor surface, a surgical access device coupled to the pad, and a locking mechanism to selectively lock a position of the surgical access device relative to the pad. In one embodiment, the anchor surface can be the skin of a patient. An exemplary surgical access device stabilization method can include making an incision in a patient at a surgical site, inserting a surgical access device through the incision, adhering a pad to an anchor surface, e.g., the skin of the patient, coupling the surgical access device to the pad, and selectively locking a position of the surgical access device relative to the pad. Other exemplary devices, systems, and methods are also provided.

A trocar sleeve has a hollow shaft having a distal end and a proximal end, the shaft having a rectilinear shaft axis, an external thread rising from an outer surface of the shaft, wherein a first external thread having a shape of a helix has a height, measured from the outer surface up to a vertex of the helix, the height of the helix, seen along the rectilinear shaft axis from distal to proximal increases, and wherein a pitch of the helix, seen along the rectilinear shaft axis from distal to proximal decreases.

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.