Provided is a stent delivery device that can rapidly transport a stent to an indwelling site. In one aspect, the stent delivery device includes a catheter including an inner sheath and an outer sheath allowing the inner sheath to be slidably inserted therethrough and a stent provided between the inner sheath and the outer sheath in the vicinity of a distal end of the catheter. The stent delivery device also includes a guiding elongated body inserted through an inner lumen of the inner sheath and partially exposed from the distal end of the catheter so as to guide the insertion of the catheter. The guiding elongated body has a variable tip area provided in the vicinity of a distal end of the guiding elongated body so as to change flexibility between a first state and a second state different from the first state.

Provided is a stent delivery device that can rapidly transport a stent to an indwelling site. In one aspect, the stent delivery device includes a catheter including an inner sheath and an outer sheath allowing the inner sheath to be slidably inserted therethrough and a stent provided between the inner sheath and the outer sheath in the vicinity of a distal end of the catheter. The stent delivery device also includes a guiding elongated body inserted through an inner lumen of the inner sheath and partially exposed from the distal end of the catheter so as to guide the insertion of the catheter. The guiding elongated body has a variable tip area provided in the vicinity of a distal end of the guiding elongated body so as to change flexibility between a first state and a second state different from the first state.

A control method and device of a surgical robot and an end instrument (34) are provided. The control device is configured for acquiring first target position and/or pose information of a remote end of a mechanical arm (21) at a first coordinate system and current position and/or pose information of each controlled end instrument (34) (S1); converting the current position and/or pose information of each controlled end instrument (34) at the first coordinate system to second target position and/or pose information of the controlled end instrument at a second coordinate system (S2); controlling joint assemblies (210-214) of the mechanical arm (21) to linkedly move according to the first target position and/or pose information, and controlling the joint assemblies of the operation arms (31) to linkedly move according to the second target position and/or pose information to allow the controlled end instrument (34) to maintain current position and/or pose (S3).

An intravascular articulating retrieval apparatus may be used to move objects within the vasculature, such as to remove an intravascular filter, tissue and other items from the vasculature. The apparatus has a user interface to manipulate a first and second actuating portion that are coupled to the distal end of the apparatus conduit. A retrieval apparatus may include forceps coupled to the second actuating portion whereby the retrieval actuator opens and closes the forceps for retrieval of an IVF or other device, such as stent or stent graft. An intravascular articulating retrieval apparatus may be used to dissect thrombus from the interior of the vascular wall, move a stent or remove a portion of a stent or stent graft to provide better blood flow or to allow blood flow into a branched vessel.

A system for performing minimally invasive procedures in a body lumen of a patient including a flexible catheter having a first lumen configured and dimensioned to receive an endoscope therethrough and a second lumen configured and dimensioned to receive a first flexible tube therethrough. The first flexible tube is movable through the second lumen and has a distal portion including a first curve extending in a first direction with respect to the longitudinal axis and a second curve extending in a second different direction with respect to the longitudinal axis. A retractor system is positioned at a distal portion of the catheter and is movable from a non-expanded insertion position to an expanded position forming an expanded cage to form a larger working space. The distal portion of the first flexible tube is movable within the expanded cage.

An instrument includes an ultrasonic blade, a first fluid port, an irrigation member, a second fluid port, and a fluid communication assembly. The ultrasonic blade defines a distal opening. The ultrasonic blade is operable in a first mode to emulsify tissue that is distally positioned relative to the ultrasonic blade. The ultrasonic blade is further operable in a second mode to transect and seal tissue that is transversely positioned relative to the ultrasonic blade. The first fluid port is in communication with the distal opening of the ultrasonic blade. The irrigation member is positioned adjacent to the distal end of the ultrasonic blade. The second fluid port is in communication with the irrigation member. The fluid communication assembly is configured to couple the first fluid port with a fluid source, couple the first fluid port with a suction source, and couple the second fluid port with the fluid source.

A surgical instrument for treating the tissue of a patient is disclosed. The surgical instrument comprises a handle, a shaft extending from the handle, and an end effector. The surgical instrument further comprises a motorized drive system, a first drive system configured to perform a first end effector drive motion, wherein the first drive system is operably coupled to the motorized drive system, and a second drive system configured to perform a second end effector drive motion, wherein the second drive system is operably coupled to the motorized drive system. The surgical instrument further comprises synchronizing means for repetitively sequencing the first end effector drive motion and the second end effector drive motion.

A disposable reloadable laparoscopic suturing instrument and method for suturing is provided. The disposable reloadable laparoscopic suturing instrument connects to and receives control signals via an actuating instrument. The instrument includes a pair of first and second opposable jaw members, a blade unit, and a needle unit. The jaw members close, clamp onto and secure the tissue, and include a pair of needle tracks and a blade track between the needle tracks. The blade unit has a blade that, upon actuation, travels along the blade track cutting the tissue resulting in an incision. Each needle unit has a needle and thread that, upon actuation, travels along a needle track suturing and sealing the tissue on both sides of the incision.

A surgical device controllable by a surgical robotic system is provided. The surgical device includes a housing capable of being coupled to the surgical robotic system; a drive system at least partially mounted in the housing; and a shaft rotatably coupled to the drive system at a first end of the shaft. The surgical device further includes a tissue-removal assembly coupled to the second end of the shaft. The tissue-removal assembly includes a first cutting member having a plurality of rotatable blades. The first cutting member is coupled to a second end of the shaft. The tissue-removal assembly further includes a second cutting member, one or more support elements slidably or fixedly coupled to the second cutting member, and one or more extendable elements slidably or fixedly coupled to the second cutting member.

The present disclosure provides a method for controlling a surgical instrument. The method includes connecting a power assembly to a control circuit, wherein the power assembly is configured to provide a source voltage, energizing, by the power assembly, a voltage boost convertor circuit configured to provide a set voltage greater than the source voltage, and energizing, by the voltage boost convertor, one or more voltage convertors configured to provide one or more operating voltages to one or more circuit components.