174 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 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 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.

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 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.

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.

A surgical stapling device includes a drive assembly and a tool assembly having an anvil and a cartridge assembly that is pivotably coupled to the anvil for movement between an open position and a clamped position. The cartridge assembly includes a staple cartridge and a channel member that defines a cavity that receives the staple cartridge. The channel member includes a channel lock that is positioned on a proximal portion of the channel member. The drive assembly is movable between a drive advanced position and a drive retracted position and engages the channel lock in the drive retracted position to retain the tool assembly in the open position.

A surgical stapling device includes a tool assembly including an anvil assembly, a cartridge assembly, and a drive assembly. The cartridge assembly includes a deployable knife that is movable from a lowered position to a raised position in response to movement of the drive assembly from a drive retracted position towards a drive advanced position. The tool assembly supports a lockout member that is movable from a locked position to an unlocked position in response to advancement of the drive assembly from the drive retracted position towards the drive advanced position when a knife and / or actuation sled is present. The lockout member is provided to prevent firing of the stapling device when a knife and / or actuation sled is not present in the tool assembly.

A surgical stapling device (10) includes an anvil assembly (12) and a replaceable staple cartridge assembly (60). The staple cartridge assembly (60) includes a blade (292) and upper alignment pins (70) and lower alignment pins (72) for holding tissue between the anvil assembly (48) and the staple cartridge assembly (60) to ensure that the blade (292) cleanly cuts through the tissue. The staple cartridge assembly (60) includes a staple cartridge body (64) having a guiding structure for guiding the staple cartridge assembly (60) onto a clamping and sliding assembly (42) of the stapling device (10).

A surgical stapling system includes an end effector and a support loading assembly. The end effector includes an anvil assembly. The support loading assembly includes an anvil support and an anvil support loader. The anvil support loader supports the anvil support and includes a support plate and a slide. The support plate includes a flexible locking arm. The carriage is coupled to the support plate by a flexible locking arm. The slide supports the anvil support and is configured to slide the anvil support onto the anvil assembly. The slide is configured to move relative to the support plate when the flexible lock arm is disconnected from the slide.

A surgical stapling system, including a stapler including a first jaw having a tissue clamping surface and a second jaw operable to receive interchangeable staple cartridges having different staple patterns, the first and second jaws relatively pivotable between an open position and a closed position. The surgical stapling system also includes a first staple cartridge having a first staple pattern and a second staple cartridge having a second staple pattern, the second staple pattern being different from the first staple pattern. The stapler is configured to perform a first firing stroke to form a first set of staples using the first staple cartridge and a second firing stroke to form a second set of staples using the second staple cartridge.

The utility model discloses a surgical suture needle storage box with high sealing performance, which comprises a storage box main body, a plurality of auxiliary mechanisms are hinged to the upper end of the storage box main body, a sealing mechanism is fixedly arranged in the middle of the interior of the storage box main body, and a silica gel pad is fixedly arranged at the lower end of the interior of the storage box main body. A plurality of needle grooves are fixedly formed in the upper end of the silica gel pad. According to the storage box, through the design of the auxiliary mechanism, the auxiliary mechanism is connected through magnetic attraction of the first magnetic attraction block and the second magnetic attraction block, the lifting cover can be tightly attached when the needle taking opening is closed, dust and impurities are prevented from entering the lifting cover, meanwhile, the sealing performance of the needle taking opening is further enhanced through the first sealing ring, and the needle taking opening is prevented from being damaged. Due to the design of the needle taking opening, the needed suture needle can be conveniently taken out in the operation process, the box cover does not need to be completely opened, the time that the suture needle is exposed in the external environment is shortened, and the sealing mechanism is matched with a sealing protruding block through a sealing groove formed in the sealing mechanism.

A surgical stapling device and tool assembly includes an anvil assembly with a stepped portion defining a first axial stop, and a cartridge assembly facing the anvil assembly and operably coupled to a drive assembly of the surgical stapling device. The cartridge assembly includes a plurality of staples disposed in a cartridge housing, and a knife assembly with a knife and a body having at least a first flange and a distal projection configured to engage a seat of an actuation sled.

An end effector for stapling and cutting an anatomical structure includes an anvil, a cartridge, and a blade. The anvil has an anvil face and a plurality of staple pockets positioned on the anvil face. The cartridge has a cartridge face defining a cartridge blade channel, the cartridge being configured to retain a plurality of staples. Each of the plurality of staples comprises a first staple leg, a second staple leg, and a crown connecting the first and second staple legs and having a midpoint. Each of the plurality of staples comprises an open staple configuration and a closed staple configuration where a first portion of the first staple leg and a second portion of the second staple leg are bent relative to the crown such that the first portion of the first staple leg and the second portion of the second staple leg cross the midpoint of the crown.