Trocar components and methods of use are described, wherein the trocar components are configured to provide access to intraperitoneal space via the rectouterine pouch to surgical tools, which optionally include one or more surgical robot members. The surgical tools are optionally 5 mm or more in diameter. In some embodiments, a cannula part has a lumen sized to provide to a plurality of the surgical tools simultaneous transvaginal access to the intraperitoneal space via the rectouterine pouch. In some embodiments, an incision sized to receive a distal aperture of the cannula is created, optionally using one or two dilators. The dilators are sized to create (optionally starting from a puncture by a needle 2 mm in diameter or less) an oblong aperture. In some embodiments, the oblong aperture is at least twice as wide across a long diameter as across a short diameter.

The present invention provides devices and methods for laparoscopic access and wound closure. The device is in the form of a unitary needle device, which enables performance of several tasks, including penetration or puncture of fascia layers, insufflation of a body cavity with gas, and placing a suture for wound closure. In particular, the device features a blunt-tipped stylet having a hook or notch at the proximal end, which can be used to capture a suture.

A radially expandable trocar, port or cannula system is provided for use in minimally invasive surgeries. The cannula creates a port access with an initial small internal diameter. The passage of the cannula devices is defined by a plurality of elongate rigid members. A number of mechanisms are provided for expanding the passage of the cannula devices, by moving the plurality of elongate rigid members towards a larger radial location, thereby creating a larger internal diameter for the port. The elongate rigid members can be prevented from unintended movement when the system is at the un-expanded state, during expansion and when it is expanded to the desired larger diameter. Exemplary embodiments include methods of preventing gas loss from the tissue that would occur through the gaps created during expansion.

A cannula assembly for use in robotic surgery is disclosed that includes a robotic cannula having a housing with an open end and a tubular portion extending distally from the housing, the tubular portion being dimensioned to accommodate passage of a surgical instrument having a 12 mm diameter, an adapter assembly configured for engagement within the open end of the cannula housing and including a tubular body with a passage supporting a primary seal dimensioned to accommodate passage of a surgical instrument having a 12 mm diameter, and an insert tube dimensioned to extend through the passage of the body portion of the adapter assembly and the tubular portion of the robotic cannula, the insert tube including a head portion with a passage supporting a secondary seal dimensioned to accommodate a surgical instrument having an 8 mm diameter.

An introducer assembly for introducing a catheter into a patient, includes a sheath having a distal end and a proximal end with a hollow lumen extending between the distal end and proximal end. The assembly also includes a coupler having a distal end operatively coupled to the proximal end of the sheath, the coupler having an internal passage in fluid communication with the hollow lumen. The assembly further includes a connector having a distal end operatively coupled to the coupler proximate the distal end of the coupler.

Access assemblies include an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. The guard assembly includes a support ring and a plurality of guard sections disposed distally of the support ring. The seal assembly includes a proximal seal member, an intermediate seal assembly, and a distal seal member, the intermediate seal assembly including a plurality of seal sections in a stacked configuration.

A cannula assembly having a retractable cannula tip for use in ophthalmic surgical procedures is disclosed. The apparatus may include a housing having a valve bay disposed between its proximal and distal ends, and a cannula assembly, including an inner and outer tube, that extends from the distal end of the housing. The inner tube may include an elongated portion with a cannula tip at its distal end. The apparatus may further include a valve disposed in the valve bay of the housing. The valve may comprise a valve tubular for adjusting flow through the inner tube, and an actuator for moving the cannula tip from an extended position to a retracted position in the outer tube. The valve tubular may provide a biasing force to the inner tube in the retracted position to move the inner tube back to the extended position upon release of the actuator.

A surgical access assembly includes an instrument valve housing defining a cavity, and a seal assembly disposed within the cavity of the instrument valve housing. The seal assembly includes a flange seal member and a centering mechanism. The flange seal member includes an annular member, a flange portion extending from the annular member, and a seal portion supported by the annular member and defining an opening dimensioned to receive a surgical instrument in a sealing relation. The flange portion includes first and second arcuate portions adjustably engaging the instrument valve housing in a sealing relation. The first and second arcuate portions have a parabolic profile. The centering mechanism maintains the seal assembly centered within the cavity of the instrument valve housing.

An example introducer is disclosed. An example introducer includes an inner liner including a lumen, a distal region and at least one folded portion extending along the distal region. The introducer also includes a reinforcing member having a length and including at least one spine extending along the length of the reinforcing member. The introducer also includes a sheath disposed along at least a portion of the introducer, wherein the sheath includes at least one perforation, wherein material adjacent to the at least one folded portion is removed from a distal portion of the introducer to form a tip region. The introducer also includes a tip member disposed along the tip region.

An attachment (1) for a trocar cannula (3) having an access valve (12) located in a proximal end (5) thereof comprises a housing (20) defining an instrument passageway (29). An operating member (43) having an instrument bore (46) is slideable in the instrument passageway (29) from a disengaged state disengaged from the access valve (12) to an engagement state extending through the access valve (12) with the access valve (12) in the open state and shielded from an instrument passing therethrough. A pair of detecting probes (55) carried on a carrier (50) and extending into the instrument bore (46) are urgeable distally from a first state to a second state by a distal end of an instrument being urged distally in the instrument bore (46) for in turn urging the operating member (43) from the disengaged state to the engagement state. A proximal seal (40) in the instrument passageway (29) is urged from a non-sealing state to a sealing state by the operating member (43) being urged from the disengaged state to the engagement state.