253 results about "Surgical stapling" patented technology

Systems, methods, and instrumentalities are disclosed for displaying a magnitude and location of a resulting tissue tension from an applied force to an instrument and a resulting tissue reaction. A surgical stapling device for monitoring and adapting to tissue tension during a surgical stapling procedure may measure strain on at least one component of the surgical stapling device resultant from one or more of an opposed force applied by a user and a force resisted by tissue associated with the tissue tension. The device may determine a location of the tissue tension based on historical surgical data, the opposed force, and the resisted force. The device may highlight the location of the tissue tension to aid in real-time surgical decision-making.

A cartridge assembly for a surgical stapling system includes a cartridge, a sled assembly, a drive beam, and a knife. The sled assembly is configured to drive fasteners through the cartridge. The drive beam defines a cam slot and is positioned to drive the sled assembly along the cartridge. The knife is supported by the sled assembly and has a blade and a guide pin that extends from the knife. The guide pin is configured to cam along the cam slot of the drive beam to facilitate pivoting movement of the knife relative to the sled assembly and to enable the blade to move relative to the cartridge for selectively cutting tissue.

A surgical system comprises a control circuit, a surgical instrument and a user interface is disclosed. The end effector assembly may comprise a sensor configured to detect a parameter associated with a function of the end effector, and transmit the detected parameter to the control circuit. Further, the control circuit may be configured to analyze the detected parameter based on a system-defined constraint and prevent at least one function of the surgical instrument based on a result of the analysis. The user interface may be configured to provide a current status regarding at least one prevented function of the surgical instrument.

A surgical stapling system comprising an instrument interface comprising a control circuit and an RFID reader is disclosed. The surgical stapling system further comprises a shaft assembly comprising a shaft and an end effector. The end effector comprises a first jaw, a second jaw, an anvil, and a cartridge channel. The surgical stapling system further comprises a replaceable staple cartridge assembly removably positioned within the cartridge channel. The replaceable staple cartridge assembly comprises a cartridge body, a longitudinal slot, a plurality of staple cavities, a plurality of staples, and a staple cartridge retainer. The staple cartridge retainer comprises a rib, a body portion, and an RFID tag embedded within the body portion, wherein the RFID tag comprises a memory, wherein the memory comprises identifier information stored in the memory specific to the staple cartridge, and wherein the identifier information is accessible by the RFID reader.

A surgical stapling system is disclosed that includes a firing drive, a first lockout, and a second lockout. The firing drive comprises a first edge and a second edge. The first lockout is configurable between a first locked state in which the first lockout engages the first edge during the firing stroke and a first unlocked state in which the first edge bypasses the first lockout during the firing stroke. The second lockout is configurable between a second locked state in which the second lockout engages the second edge during the firing stroke and a second unlocked state in which the second edge bypasses the second lockout during the firing stroke. A staple cartridge is seatable in the stapling system that comprises a first key that unlocks the first lockout and a second key that unlocks the second lockout.

Surgical stapling instruments include mechanisms for identifying and / or deactivating stapler cartridge for use with the instruments. The stapling instrument includes a drive member for actuating a staple cartridge and a locking member movable from a disabled position permitting distal translation of the drive member through a staple firing stroke, to a locking position inhibiting distal translation of the drive member through the staple firing stroke. The staple cartridge may include a switch for maintaining the locking member in the disabled position. The switch may be further configured to operate as a reload detection mechanism for determining the type of reload present in the surgical stapling instrument.

A surgical stapling assembly is disclosed. The assembly can include a cartridge body having cavities defined therein forming a pattern of openings in the deck of the cartridge body. The pattern can include longitudinally-repeating clusters of cavity ends. The assembly can also include fasteners removably positioned in the cavities. The pattern of openings can comprise openings on a first side of the cartridge body comprising inner openings each defining an inner proximal-to-distal axis oriented parallel to the longitudinal axis, outer openings each defining an outer proximal-to-distal axis obliquely-oriented relative to the longitudinal axis at an outer angle, and intermediate openings each defining an intermediate proximal-to-distal axis obliquely-oriented relative to the longitudinal axis at an intermediate angle, wherein the intermediate angle is different than the outer angle. The assembly can include a sled having offset ramps and / or an anvil comprising an arrangement of forming pockets proximal to the tissue stop.

A surgical system comprises a control circuit, a surgical instrument and a user interface is disclosed. The end effector assembly may comprise a sensor configured to detect a parameter associated with a function of the end effector, and transmit the detected parameter to the control circuit. Further, the control circuit may be configured to analyze the detected parameter based on a system-defined constraint and prevent at least one function of the surgical instrument based on a result of the analysis. The user interface may be configured to provide a current status regarding at least one prevented function of the surgical instrument.

A surgical stapling device includes a tool assembly having an anvil assembly and a cartridge assembly, and a drive assembly. The cartridge assembly includes a staple cartridge having an actuation sled assembly and channel member that supports a lockout member. The lockout member includes a stop member that interacts with the drive assembly when the actuation sled assembly is not present within a proximal portion of the staple cartridge to prevent advancement of the drive assembly and firing of the stapling device.

Surgical stapling instruments include mechanisms for identifying and / or deactivating stapler cartridge for use with the instruments. The stapling instrument includes a drive member for actuating a staple cartridge and a locking member movable from a disabled position permitting distal translation of the drive member through a staple firing stroke, to a locking position inhibiting distal translation of the drive member through the staple firing stroke. The staple cartridge may include a switch for maintaining the locking member in the disabled position. The switch may be further configured to operate as a reload detection mechanism for determining the type of reload present in the surgical stapling instrument.

A method for sequential firings of staple cartridges is disclosed. The sequential firings including a first firing that deploys first staples into a first tissue portion from a first staple cartridge and a second firing that deploys second staples into a second tissue portion from a second staple cartridge. The method comprises monitoring a parameter indicative of a tissue response associated with the first firing, assessing the tissue response based on the parameter, and adjusting an operational parameter associated with the second firing based on the tissue response during the first firing.

An anvil buttress loading system includes an anvil assembly having a snap clip disposed on a tissue facing surface, a loading tool including a clip roller extending proximally from a support plate, and an anvil buttress including a buttress body. The snap clip is movable between closed and open positions having generally concave and convex shapes, respectively, relative to the tissue facing surface. The anvil buttress is releasably retained on the loading tool and is transferrable from the loading tool to the anvil assembly such that the buttress body is captured between the snap clip and the tissue facing surface of the anvil assembly. The snap clip is movable from the closed position to the open position by the clip roller when advancing the loading tool onto the anvil assembly and from the open position to the closed position when separating the loading tool from the anvil assembly.

A surgical stapling system comprising an actuator system operable to generate independent motions and a stapling end effector responsive to the independent motions generated by the actuator system is disclosed. The stapling end effector comprises a staple cartridge jaw comprising a plurality of staples removably stored therein, an anvil jaw, and a firing member. The firing member comprises an anvil-engaging portion and a cartridge jaw-engaging portion configured to engage the staple cartridge jaw.

Systems, methods, and instrumentalities are disclosed for displaying a magnitude and location of a resulting tissue tension from an applied force to an instrument and a resulting tissue reaction. A surgical stapling device for monitoring and adapting to tissue tension during a surgical stapling procedure may measure strain on at least one component of the surgical stapling device resultant from one or more of an opposed force applied by a user and a force resisted by tissue associated with the tissue tension. The device may determine a location of the tissue tension based on historical surgical data, the opposed force, and the resisted force. The device may highlight the location of the tissue tension to aid in real-time surgical decision-making.

A surgical stapling device includes a tool assembly having a drive assembly, an anvil, and a cartridge assembly. The cartridge assembly includes a replaceable staple cartridge that includes an actuation sled assembly having an actuation sled, a knife bar, and a retractor link. The retractor link is secured to the knife bar such that the actuation sled assembly is movable through a cartridge body of the staple cartridge. The retractor link is movable from a non-deformed condition disengaged from the drive assembly to a deformed condition engaged with the drive assembly to facilitate retraction of the actuation sled assembly after the stapling device is fired.

A surgical stapling device includes a tool assembly that has a cartridge assembly, an anvil assembly, and a dissecting tip. The dissecting tip is movable between a first position in which the longitudinal axis of the dissecting tip is aligned with a longitudinal axis of the anvil and a second position in which the longitudinal axis of the dissecting tip defines an acute angle with the longitudinal axis of the anvil.

Surgical stapling instruments include mechanisms for identifying and / or deactivating stapler cartridges for use with the instruments. The stapling instrument includes a drive member for actuating a staple cartridge and a locking member movable from a disabled position permitting distal translation of the drive member through a staple firing stroke, to a locking position inhibiting distal translation of the drive member through the staple firing stroke. The staple cartridge may include a switch movable in a lateral direction to either maintain the locking member in the disabled position or to allow the locking member to move into the locking position. The instrument may further include a stapler cartridge including an annular pin configured to be engaged by a drive member at a an axial position to create a detectable resistance for reload detection by a control unit to identify the type of stapler cartridge present in the surgical stapling instrument.

The needle-holding stitching instrument comprises a forceps head assembly at the front end of a shaft tube and a shell at the tail end of the shaft tube, the forceps head assembly comprises forceps claws which can be opened or closed mutually, and roller assemblies capable of clamping the stitching needle are arranged in the forceps claws. The idler wheel assembly is in transmission with the bevel gear assembly in the shell through the transmission assembly, so that the idler wheel assembly rotates forwards or reversely, meanwhile, the bevel gear assembly is driven by the ratchet wheel assembly in a one-way mode, and the ratchet wheel assembly is controlled by the rotating handle in the shell, so that when the rotating handle is pressed, the ratchet wheel assembly can be in one-way transmission to the bevel gear assembly; when the rotating handle is reset, the ratchet wheel assembly does not transmit, the stitching instrument can achieve continuous advancing or retreating of the stitching needle, and the operation burden of a doctor during surgical stitching can be relieved.

A surgical stapling device includes an end effector having an end effector frame with a cantilevered portion and an anvil assembly supported on the cantilevered portion of the end effector frame. The anvil assembly and the cantilevered portion of the end effector frame are adapted to be secured together in a manner to minimize weakening of the cantilevered portion of the end effector frame to minimize deflection of the anvil assembly during firing of the stapling device.

A surgical stapling device includes an end effector having a bottom guide member to confine tissue in the path of a cutting member and ensure that tissue is cleanly cut through. The bottom guide member can be supported on an end effector frame and be reusable or supported on the cartridge module and be disposable.

A surgical stapling system is disclosed comprising an end effector, a closure actuator, and a closure lockout. The end effector comprises an elongate channel, an anvil, and a pivot pivotably coupling the anvil to the elongate channel. The anvil is pivotable relative to the elongate channel between an open position and a closed position. The closure actuator is movable from a first position toward a second position during a closure stroke. The closure actuator is configured to move the anvil toward the closed position. The closure lockout is configurable between a locked state in which the closure lockout engages the closure actuator at a location proximal with respect to the pivot to prevent the closure actuator from moving the anvil toward the closed position and an unlocked state in which the closure actuator is permitted to move the anvil toward the closed position.

A surgical stapling system is disclosed. The stapling system comprises a motor, a drive assembly comprising a drive train coupled to the motor to actuate a function of a surgical end effector, wherein the drive train is actuatable by the motor through a drive stroke, and a control circuit coupled to the drive assembly. The control circuit is configured to monitor a first parameter of the drive assembly during the drive stroke, determine a stored kinetic energy of the drive assembly based on the first parameter, monitor a second parameter of the drive assembly during the drive stroke, wherein the first parameter and the second parameter are different, compare the monitored second parameter to a parameter threshold indicative of a motor stall condition, and determine a motor setting of the motor based on the determined stored kinetic energy and the comparison of the monitored second parameter to the parameter threshold.

A surgical stapling device includes a tool assembly that has a cartridge assembly, an anvil assembly, and a dissecting tip. The dissecting tip is movable between a first position in which the longitudinal axis of the dissecting tip is aligned with a longitudinal axis of the anvil and a second position in which the longitudinal axis of the dissecting tip defines an acute angle with the longitudinal axis of the anvil.

A surgical stapling system includes an anvil, a blade, a motor and gear assembly, a motor power source, and a motor controller. A method of controlling a motor includes receiving first and second data indicative of operation of the motor under first and second conditions, respectively, and adjusting a motor control signal based on a difference between the first and second data. Another method includes receiving initial manufacturing motor and gear assembly data from a manufacturer and operational data during initial use of the system, and adjusting a parameter of a control signal based on a difference between the manufacturing data and the operational data. Another method includes controlling a pulse width modulation (PWM) motor control signal, receiving data regarding an interaction between a blade and tissue gripped by an anvil, and adjusting a frequency of the PWM signal based on the data relating to the interaction.

A surgical stapling device includes an anvil section, a cartridge section, a staple cartridge, a clamping lever, and a firing assembly. The staple cartridge is releasably supported on the cartridge section and includes a lockout assembly and a knife assembly. The knife assembly includes a knife bar having a cutting blade for cutting tissue clamped between the anvil and cartridge sections. The lockout assembly includes a lockout member that movable from an unlocked position to a locked position and is positioned to shield the cutting blade in both positions. The lockout member is configured to prevent binding of the lockout member to facilitate movement of the lockout member from the unlocked position to the locked position after the stapling device is fired.

A surgical stapling device includes a tool assembly, an articulation joint, and a drive assembly having a push pull drive cable. The articulation joint includes a distal articulation member, a middle articulation member, and a proximal articulation member that are configured to facilitate articulation of the tool assembly about spaced articulation axes in both a yaw direction and a pitch direction and provide support and guidance to the push pull drive cable during firing of the stapling device.

The application provides a laparoscope reciprocating suture device middle wire guide intermittent release mechanism, the suture device comprises a curved needle mounting block, the curved needle mounting block is provided with a curved needle groove, a curved needle is movably arranged in the curved needle groove, the curved needle performs curve movement along the curved needle groove, the curved needle mounting block is provided with a first opening and a second opening, the first opening is located at the front end of the curved needle groove, the second opening is movably connected with a wire guide, the wire guide is connected with a suture wire, and the intermittent release mechanism is arranged at the position of the second opening.The wire guide is limited or released, the wedge-shaped teeth between the rotating buckle and the rotating buckle base, the reset spring and the two-face cutting flange are arranged, so that the curved needle automatically and intermittently draws out the wire guide from the second outlet and separates from the wire guide when reciprocating, the wire guide remains in the second outlet position, manual operation is not required for releasing the wire guide or limiting the wire guide each time, the order of suture wire routing is ensured, and the reliability and convenience of surgical suturing are improved.

Aspects of the present disclosure are directed to a surgical stapling device including a drive assembly and a tool assembly having a cartridge assembly with a staple cartridge. The surgical stapling device includes a cartridge assembly with a replaceable staple cartridge. The replaceable staple cartridge includes an actuation sled assembly including an actuation sled and a knife. The knife is supported on the actuation sled for linear movement between a lowered position and a raised position. The staple cartridge includes an actuation sled assembly having an actuation sled and a knife supported on the actuation sled for linear movement between the lowered position and the raised position. The drive assembly and the knife are configured to move the knife between the raised and lowered positions when the drive assembly moves from a retracted position toward an advanced position.

A loading unit for use with a surgical stapling instrument is disclosed. The loading unit comprises a shaft and an end effector extending from the shaft. The end effector comprises a first jaw comprising an anvil, and a second jaw. At least one of the first jaw and the second jaw is movable relative to the other to grasp tissue. The second jaw comprises an elongated channel and a staple cartridge insertable into the elongated channel for assembly therewith. The staple cartridge comprises a cartridge pan, and a sled translatable relative to the cartridge pan from a home position along a firing path in a firing motion to deploy staples from the staple cartridge. The loading unit also comprises a sled position-resetting mechanism configured to return the sled to the home position from a predefined range of positions distal to the home position prior to the firing motion.