An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.

An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.

An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.

An access device for a heart chamber, a removable hemostatic valve unit, and a system including a cardiac assist unit are disclosed. In examples, the access device) includes an apical base plate and a sealing unit configured to provide a separation of a wet zone from a heart chamber and a dry zone with a gaseous environment outside of said heart chamber inside a patient body at the same time.

A method of using a surgical modular robotic assembly including an interchangeable motor pack, a hand-held surgical instrument, and a robotic surgical instrument is disclosed. The method includes releasably attaching an interface portion of the interchangeable motor pack to the hand-held surgical instrument, causing the interchangeable motor pack to drive a first surgical tool of the hand-held surgical instrument, stopping the interchangeable motor pack from driving the first surgical tool, disconnecting the interface portion from the hand-held surgical instrument, and releasably attaching the interface portion of the interchangeable motor pack to the robotic surgical instrument.

A surgical access device including a cannula, a seal, and a seal guard is disclosed. The cannula includes a housing and an elongated portion extending distally from the housing. The seal is disposed at least partially within the housing of the cannula and includes an aperture for sealed reception of a surgical instrument therethrough. The seal guard is disposed at least partially within the housing of the cannula and proximally of the seal. The seal guard is formed from a flat sheet of material and folded into a funnel-like shape.

An access assembly includes an instrument valve housing defining a cavity, and a valve assembly. The valve assembly includes a flange seal member, a seal assembly, a centering mechanism, and a retainer frame assembly. The flange seal member includes an arcuate portion configured to adjustably engage first and second surfaces of the instrument valve housing in a sealing relation. The centering mechanism is configured to bias the valve assembly towards a generally centered position within the cavity. The centering mechanism includes a plurality of coils including inner coil portions operatively secured with the seal assembly, and outer coil portions configured to engage the first surface of the instrument valve housing. The retainer frame assembly includes first and second members. The inner coil portion of the centering mechanism is disposed between seal assembly and the second member of the retainer frame assembly.

Surgical access devices having wound closure features incorporated as part of the device are provided. The devices allow suture to be inserted directly into the device and operated to close an opening through which the device is disposed as or shortly after the device is removed from the surgical site. Further, the wound closure features allow for various orientations of wound closure to be achieved by adjusting an angle at which the suture enters tissue surrounding the opening to be closed. Some of the wound closure features provided for include openings formed in both the housing and cannula of the surgical access device, multiple openings formed in one or both the housing and cannula, locations of the openings being adjustable or otherwise movable, and various flexible seals. Other features, as well as methods of closing an opening through which the surgical access device was disposed, are also provided.

The surgical robotic access system provides access for robotic instruments and/or actuators including the introduction, operation and withdrawal of such robotic manipulators into a body cavity without permitting the escape of pressurized fluid or gas. The surgical robotic access system also provides a multi-faceted range of movement without touching or effecting pressure on the opening in the patient's body cavity.

A sealing ring protection sheet for a trocar of the present invention includes a positioning skirt, a support piece and a curved protection sheet. An upper end of the support piece is connected to an inner side of the positioning skirt, and a lower end of the support piece is connected to an upper end of the curved protection sheet. The curved protection sheet is of a curved and asymmetrical sheet-like structure, forming an easily deformable region and a protection region along two sides of a center line and its extension line of the positioning skirt separately. A left side and a right side of the curved protection sheet have different curvatures. The design of different curvatures of the left and right sides reduces resistance forces when various special-shaped instruments are inserted and removed. An end sealing assembly and the trocar of the present invention include the sealing ring protection sheet for a trocar of the present invention, capable of not only ensuring that a funnel-shaped sealing ring is not punctured by a surgical instrument in a surgical process, thereby ensuring a good sealing performance, but also reducing a moving resistance force, and particularly reducing a resistance force when various special-shaped surgical instruments are inserted and removed.