389 results about "Surgical Staplers" patented technology

The present disclosure relates to a surgical stapler and a staple cartridge for use with the surgical stapler, where a cartridge body of the staple cartridge includes: a tissue contact platform; a plurality of staple cavities arranged in rows along a longitudinal direction of the staple cartridge; and a retaining pin assembly slidably arranged in an end of the cartridge body proximate to the outside and can extend distally out of a retaining pin hole opened on the tissue contact platform along a longitudinal direction of the surgical stapler when the closure drive mechanism is actuated, wherein a pin rod of the retaining pin assembly having a round cross section; wherein, in the longitudinal direction of the staple cartridge, an outermost edge of an outermost staple cavity in at least one row of the staple cavities is aligned with or extends beyond a longitudinal axis of the pin rod; and wherein the pin rod of the retaining pin assembly is offset relative to a longitudinal centerline of the staple cartridge; or alternatively the pin rod of the retaining pin assembly is centered relative to the longitudinal centerline of the staple cartridge while a longitudinal centerline of a plurality of rows of the staple cavities is offset relative to the longitudinal centerline of the staple cartridge. The surgical stapler according to the present disclosure includes: an anvil for causing staples in the staple cartridge formed, which is formed thereon with a plurality of staple forming pockets arranged in rows, and an anvil side retaining pin receiving hole for receiving a free end of a retaining pin assembly of the staple cartridge, wherein an outermost edge of an outermost staple forming pocket in at least one row of the staple forming pockets is aligned with or extends beyond a center of the retaining pin receiving hole at the anvil side.

A staple cartridge for a surgical instrument includes a cartridge body extending along a longitudinal axis and having an upper deck. Pockets extend through the upper deck for receiving respective staples. The staple cartridge also includes a pan coupled to the cartridge body. The pan includes a laterally-opposed pair of sidewalls spaced apart from each other to define a trough sized and configured to receive the cartridge body. The pan also includes a retention tab extending laterally outwardly from a sidewall and longitudinally between proximal and distal ends. The retention tab defines a recess extending laterally outwardly from the trough. The recess opens through the sidewall at at least one of the proximal or distal ends. The pan further includes a relief slot extending through the sidewall adjacent to the at least one of the proximal or distal ends such that the relief slot opens directly into the recess.

A surgical stapler kit includes a surgical stapler having a body, a shaft, and an end effector. The kit includes a first staple cartridge having a first cartridge body and a first sled, and a second staple cartridge having a second cartridge body and a second sled. When the first staple cartridge is at least partially seated within a cartridge jaw with the first sled in a proximal undisplaced position, a knife drives the first sled distally to deploy staples from the first cartridge body. When the second staple cartridge is at least partially seated within the cartridge jaw with the second sled in a proximal undisplaced position, the knife advances distally into a lockout position before causing any staples to be deployed from the second cartridge body.

An apparatus (1000) includes an end effector (200), a motor (1100), a sensor (1104), and a controller (1150). The end effector includes first and second jaws (202, 204) and a knife (206). The controller obtains using the sensor a first force value exerted by the motor as the knife is contacting the ramp surface. The controller determines whether the first force value exerted by the motor exceeds a first predetermined force threshold as the knife is contacting the ramp surface. The controller is configured to alter travel of the knife. Altering the travel of the knife includes at least one of: pausing the knife for a predetermined amount of time, pausing the knife until a second force value exerted by the motor obtained from the sensor is below the first predetermined force threshold, or advancing the knife at a second speed that is less than the first speed.

A staple cartridge assembly capable of coupling with a cartridge channel of a surgical stapler. The staple cartridge includes a staple cartridge body, a swing gate pivotably coupled with the staple cartridge body, and a bridge member extending across the central slot and located proximally relative to the swing gate. The staple cartridge body defines a central slot dimensioned to slidably receive a firing beam of the surgical stapler. The staple cartridge body includes a proximal end, a distal end, and a staple deck extending between the proximal end and the distal end. The staple deck defines staple openings. The swing gate can pivot between a first position and a second position. The swing gate extends across the central slot in the first position, while the swing gate extends alongside the central slot in the second position. The bridge member defines a closed proximal end of the central slot.

The utility model relates to a surgical stapling instrument. The surgical suturing instrument comprises a driving gear, a driven gear, a return gear and a one-way control piece, wherein the driven gear is provided with a meshing position and a disengagement position which move in the axial direction of the driving gear. When the driven gear is in the meshing position, the one-way control piece is far away from the rack, and the driving gear is meshed with the rack through the driven gear to drive the rack to advance or retreat; when the driven gear is in the separation position, the one-way control piece is used for being connected with the rack, the driven gear is separated from the rack, and the retreating gear is meshed with the rack to drive the rack to retreat. When the motor breaks down, firstly, the driven gear is made to move from the meshing position to the disengaging position, then the return gear is manually rotated, under the action of the one-way control piece, the return gear can drive the rack to return, the jaw is opened to release tissue, and on the other hand, the tong head needs to drive the blade to retract.

A staple cartridge including a cartridge body and a first RFID feature. The cartridge body defines a longitudinal axis extending from a proximal end to a distal end of the cartridge body. The cartridge body is configured to be received within a jaw of a surgical stapler. The cartridge body also defines a plurality of staple apertures that are configured to house staples. The proximal portion of the cartridge body defines a pocket, and the pocket is proximal to a proximal most staple aperture of the plurality of staple apertures. The first RFID feature is fixed within the pocket. The first RFID feature is configured to communicate with a second RFID feature presented by the jaw of the surgical stapler.

Surgical staple cartridges with sled configurations configured to be coupled to a firing driver of a compatible surgical stapling instrument such that the sled is retractable from a fired position within the staple cartridge to a released position wherein the firing driver decouples from the sled at a location that is distal to an unfired position of the sled.

The present disclosure provides a stapling apparatus. The apparatus includes a trocar, a stapling head assembly, and an anvil. The stapling head assembly includes one or more lights positioned on a surface of a tubular casing of the stapling head assembly, the lights extending parallel to a longitudinal axis of the stapling head assembly. The row of lights provide an illumination system to provide indicators of device orientation or location.

A powered handle for a surgical stapler has a drive system including an electric motor. The powered handle includes a shaft recognition mechanism such that when a reload shaft for use with the surgical stapler is installed, a control system can actuate the drive system with the recognized shaft. The powered handle further comprises a LED light ring driven by a light control scheme to display a handle status. The control system also includes a startup module to assess hardware and control system performance before use. The startup module assesses different criteria depending on whether the handle is new, previously used, or previously reset. The control system of the powered handle further includes a lockout module configured to identify when a lockout has been encountered. The lockout module applies different criteria depending on whether the motor is operating at a maximum speed state or less than a maximum speed state.

An apparatus includes a first and second elongate member that can releasably couple together to in order to cooperate to clamp and staple tissue, a latch member that can latch the first and second elongate member to clamp tissue, a firing assembly that can sever and staple clamped tissue, and a strain measuring assembly associated with the first elongate member. The strain measuring assembly being capable of measuring a strain value on the first elongate member, compare the strain value with a predetermined limit associated with successful staple formation, and generate a signal in response to the comparison.

An apparatus includes a housing, a lockout arm, and a spring, and is configured for use with a linear surgical stapler having a first stapler half with a frame and a clamp lever, and a second stapler half with a latch projection. The lockout arm is rotatable between a lockout position and a bypass position and is biased toward the lockout position by the spring. In the lockout position the lockout arm inhibits a proximal end of the clamp lever in a closed state from coupling with a proximal end of the frame. In the bypass position the lockout arm permits the proximal end of the clamp lever in the closed state to couple with the proximal end of the frame. The lockout arm transitions from the lockout position to the bypass position only when the latch projection is properly captured by the clamp lever in the closed state.

An apparatus (1000) includes an end effector (1200, 2200, 2300, 3200, 4200, 5200), a first flexible coil (508, 1508), a second flexible coil (510, 1510), and a pivoting lock (1270, 2270, 2370, 3270, 4270, 5270). The end effector includes a first jaw (1202, 2202, 2302, 3202, 4202, 5202), a second jaw (1202), and a knife (1206, 2206, 2306, 3206, 4206, 5206). The first and second flexible coils are operatively attached to an upper portion (1238, 2238, 2338, 3238, 4238, 5238) and a lower portion (1246, 2246, 2346, 3246, 4246, 5246) of the knife, respectively. The pivoting lock is pivotable from an unlocked configuration to a locked-out configuration about a pivot axis located vertically between the first and second flexible coils to inhibit distal actuation of the knife. The knife can move the pivoting lock relative to the first and second jaws along the firing stroke.

A surgical instrument includes a body assembly, a shaft assembly, a stapling head assembly disposed at a distal end of the shaft assembly, and an anvil. The stapling head assembly having a deck member and a closure shaft capable of moving relative to the deck member. The anvil including a head, a shank, a biasing body, and a electronic unit having a distance sensor. The head and the shank being capable of moving relative to each other. The biasing body being interposed between the head and the shank with a known spring constant. The distance sensor being capable of measuring a relative distance between the shank and the head, while the electronic unit can communicate a parameter associated with the relative distance to a console.

A method of replacing a consumable of a surgical tool includes securing the surgical tool, which includes a drive housing, a shaft extending from the drive housing, an end effector arranged at a distal end of the shaft and including opposing upper and lower jaws, a wrist interposing the shaft and the end effector, and a knife assembly including a knife arranged at the end effector and first and second drive members extending to the drive housing. The method includes uncoupling the end effector from the wrist, moving the end effector distally from the wrist while the wrist remains intact, removing the knife assembly from the end effector, and thereby entirely separating the end effector from proximal portions of the surgical tool, replacing the consumable of the surgical tool, reconnecting the knife assembly to the surgical tool, and re-coupling the end effector to the wrist.

The utility model provides a nail bin assembly and a surgical anastomat, the nail bin assembly comprises a first sleeve and a second sleeve, the far end of the first sleeve is connected with the near end of the second sleeve, the near end of the first sleeve is used for being connected with an instrument platform of the surgical anastomat, and a pipe cavity of the first sleeve and a pipe cavity of the second sleeve communicate with each other and define a sliding space; the connecting piece is used for axially moving in the sliding space when receiving the driving force from the instrument platform; the guide piece extends in the sliding space, the far end of the guide piece is located in the second sleeve, the near end of the guide piece extends out of the near end of the second sleeve and is located in the first sleeve, the connecting piece is driven, the connecting piece receives the guide piece, and the guide piece guides the connecting piece to move into the second sleeve from the first sleeve in the axial direction. By arranging the guide piece extending in the axial direction, axial movement of the connecting piece is guided, and possible rotating movement of the connecting piece is prevented.

The utility model discloses a surgical suture device for sutures, comprising a middle handle, a screw hole is provided at the top of the middle handle, an external threaded barrel is movably connected to the screw hole, a suture needle is fixedly connected to the top of the external threaded barrel, a pressure rod is provided at the top of the suture needle, a rotary spring is provided at the bottom of the pressure rod, a cavity is provided inside the middle handle, a round ball is movably embedded inside the cavity, a transparent cover is embedded on the outer wall of the middle handle, a tail handle is fixedly connected to the bottom end of the middle handle, and a plurality of corrugated grooves are provided on the outer wall of the tail handle. The utility model is provided with a series of structures, so that the suture needle can be replaced by twisting when replaced, reducing the difficulty of separating the suture needle from the suture device, thereby saving the time required for replacing the suture needle by the suture device, thereby reducing the probability of the needle of the suture needle piercing the finger of the surgeon, improving the safety of the suture device when in use, and reducing the risk of infectious occupational exposure of the surgeon.

An apparatus includes a first and second elongate member that can releasably couple together to in order to cooperate to clamp and staple tissue, a latch member that can latch the first and second elongate member to clamp tissue, a firing assembly that can sever and staple clamped tissue, and a clamp force measuring assembly. The clamp force measuring assembly can measure a parameter associated with a clamping force imparted on the first and second stapling surfaces while clamping tissue, and process and communicate the measured parameter to be compared with a predetermined limit associated with successful staple formation.

A powered or robotic surgical stapler includes a loading unit having an end effector with an anvil and staple cartridge. A drive shaft disposed in the loading unit is actuated by one or more motors. The drive shaft approximates the anvil and advances a knife and a sled to eject a plurality of staples from the cartridge. A position sensor and a torque or current draw sensor measure operation of the motor and a processor determines an initial peak in the torque or current. The processor then calculates a stop position from the drive shaft based on a motor position corresponding to the initial peak and actuates the drive shaft until it reaches the stop position, which occurs prior to the drive shaft reaching a mechanical limit of the drive shaft.

The utility model provides a percussion piece, a nail bin assembly and a surgical anastomat, the percussion piece is used for the nail bin assembly of the surgical anastomat and can be driven to move in the axial direction of the surgical anastomat, and at least one row of anastomosis nails arranged in the axial direction are arranged in the nail bin assembly; the percussion piece comprises a body part and at least one nail pushing part, the nail pushing part is at least partially located on the far end side of the body part, the upper surface of the nail pushing part is provided with a nail pushing face, and the nail pushing face is provided with at least one limiting part; wherein each nail pushing part corresponds to a row of anastomosis nails, and when the percussion piece moves towards the far end to drive the anastomosis nails, the limiting part at least partially acts on the anastomosis nails. The limiting part is arranged on the far end side of the percussion piece, the anastomosis nail in the forming process is guided and limited, transverse deviation of the anastomosis nail under the action of external force is compensated, and the operation effect is effectively improved.

A surgical stapler includes a tool assembly that has a cartridge assembly, an anvil assembly, and a dissector tip. The dissector tip is moveable between a first configuration aligned with a longitudinal axis of the tool assembly and a second configuration defining an acute angle with the longitudinal axis of the tool assembly.

A stapling assembly for a surgical instrument includes a body extending along a longitudinal axis and having an upper deck, a plurality of pockets extending through the upper deck for receiving respective staples and arranged in at least two longitudinal rows, a plurality of staple drivers, and a staple driver actuator. The stapling assembly also includes a plurality of pocket extenders extending upwardly from the upper deck. Each pocket extender has a respective top surface. The stapling assembly further includes at least one upwardly-facing surface configured to contact an adhesive of an adjunct for securing the adjunct to the stapling assembly. The at least one upwardly-facing surface is disposed at least partially between at least a portion of the upper deck and the top surfaces of the plurality of pocket extenders, and spans laterally at least partially across at least two longitudinal rows of the plurality of pockets.

An apparatus includes a jaw body, an anvil surface defined by the jaw body, and an elongate slot extending through the anvil surface and along a longitudinal axis of the jaw body. The apparatus further includes a first longitudinal row of staple forming pockets disposed on the anvil surface and configured to form a plurality of first staples such that first legs of each formed first staple are laterally aligned with each other. The apparatus also includes a second longitudinal row of staple forming pockets disposed on the anvil surface laterally outwardly of the first longitudinal row of staple forming pockets relative to the longitudinal axis, and configured to form a plurality of second staples such that second legs of each formed second staple skew laterally away from a second crown of the respective formed second staple.

An apparatus that includes a body, an initiation device, an actuator, and a driver. The body has a cradle sized and configured to receive a linear surgical stapler operable to clamp and staple tissue with a plurality of staples. The actuator is in communication with the initiation device and the initiation device is coupled with the body. The driver is operatively coupled with the actuator and is configured to mechanically couple with a firing assembly of the linear surgical stapler. The initiation device is configured to be manipulated by a user to activate the actuator so that the actuator actuates the driver relative to the body, thereby driving the firing assembly distally to fire the linear surgical stapler.

To provide improved surgical instruments. [Solution] Surface preparation of sliding surfaces can improve the wear performance of surgical instruments such as surgical staplers, which include a reusable mechanism that is used multiple times with a single-use reloadable cartridge. A combination of surface hardening, surface finishing, and surface coating can be applied to the metal components of surgical instruments to reduce the possibility of abrasive wear in metal-to-metal sliding engagements. Surface hardening technology can enable further manufacturing operations such as welding without compromising the strength of the underlying metal substrate. With stainless steel metal substrates, surface hardening or surface hardening technology may reduce corrosion resistance, so a surface coating can be added to suppress surface oxidation and to provide a barrier against metal-to-metal contact. Further lubricating coating layers, such as a brazing coating layer, can enhance abrasion resistance.

A surgical stapler includes an anvil and a cartridge that cooperate with each other, a handle, and a connecting tube for connecting the cartridge to the handle. A stent mounting rod is arranged at a front end of the anvil, and a stent for distracting an orifice is movably connected to the stent mounting rod. The stent has a flexible and deformable tubular structure and can distract a lumen of the human orifice after a radial constraint is removed. The stent is coated with an anti-leakage film. An anti-reflux film is further arranged on the stent. The surgical stapler can effectively solve some complications after anastomosis by an existing surgical stapler, and can be widely used in the technical field of medical anastomosis.