278 results about "Surgical Staplers" patented technology

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.

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.

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.

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.

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 instrument end effector includes a first jaw configured to receive a staple cartridge and a second jaw that includes an anvil having a plurality of staple forming pockets. The first and second jaws are operable to clamp and staple tissue positioned therebetween. A tip member is movably disposed at a distal end of the anvil and is configured to toggle relative to the anvil between a first discrete position and a second discrete position. The tip member in the first discrete position is oriented angularly toward the first jaw, and the tip member in the second discrete position is oriented angularly away from the first discrete position.

A method of operating a surgical stapler includes advancing a knife assembly at a first velocity until a predetermined force is detected, advancing the knife assembly at a second velocity when the predetermined force is detected, the second velocity being less than the first velocity, and continuing to advance the knife assembly at the second velocity until the knife assembly travels a cutting stroke distance.

Jaw assemblies for a surgical stapler are provided. The jaw assemblies comprise a first jaw having a first clamping surface and a plurality of staples disposed therein and second jaw assembly having a second clamping surface. The jaw assemblies can be actuated from a closed configuration in which the first clamping surface contacts or is adjacent to the second clamping surface to an open configuration in which the second jaw is pivoted away from the first jaw to a stapling position in which the second clamping surface is parallel to the first clamping surface and spaced apart from the first clamping surface. A pivoting link or sliding pivot joint can couple the second jaw to the first jaw to facilitate motion between the closed position, the open position, and the stapling position.

A surgical stapler that can deliver staples or anchors into both tendon and bone. The staples or anchors releasably engage to the end of a staple rod. The stapler rod includes a butterfly clip on its proximal end, the butterfly clip having two wings or panels and a striking surface between the wings. The stapler is used to secure a biological construct to tendon or bone during arthroscopic surgery. The device includes a stapler handle with an insertable staple rod. The stapler handle drives the staple rod to advance a staple into the bone or tendon.

An apparatus includes first and second stapler halves that selectively couple together and separate from one another, and a clamp member actuatable to approximate the stapler halves to clamp tissue. A firing assembly is actuatable through a firing stroke to fire the stapling assembly on clamped tissue. The firing assembly includes a firing actuator movable between a retracted position and a deployed position in which the firing actuator is configured to actuate the firing assembly through the firing stroke, and a firing lockout member movable between an engaged position in which the firing lockout member inhibits advancement of the firing assembly through the firing stroke, and a disengaged position in which the firing lockout member permits advancement of the firing assembly through the firing stroke. The firing lockout member is configured to assume the disengaged position only when the firing actuator is in the deployed position.

A surgical stapler includes an anvil portion, a portion of a tissue contacting surface of the anvil portion located on one side of a stapling groove having a first width and a portion of the tissue contacting surface located on the other side of the stapling groove having a second width, the first width being greater than the second width. Such an arrangement allows a certain error to be allowed as much as possible when firing the retaining pin, for example, even if the retaining pin is not accurately received by the retaining pin recess, the end of the retaining pin abuts against an enlarged tissue contact surface of the anvil portion without miss the anvil portion into tissue. The retaining pin abuts against the enlarged tissue contact surface, thereby resisting actuation of the anvil portion and cartridge towards the closed configuration, which enables an operator to perceive anomalies in actuation of the guide pin. In addition, the retaining pin abutting against the tissue contact surface of the anvil portion may return to the retaining pin recess under subsequent slight wobble or similar operations to allow subsequent surgical procedures.

Disclosed is an anvil for a surgical stapler, the anvil being locally powered and including a contact indication with light indicator. The light indicators provide feedback as to the status of the anvil. The anvil can include a battery or capacitor-based circuit, which can be charged locally or via a power source on the handle.

A surgical instrument for treating a tubular organ includes a shaft assembly, a stapling assembly, a trocar, and one or more light sources. The stapling assembly is disposed at the distal end portion of the shaft assembly and includes a circumferential sidewall having a distal edge to define a stapling line. The trocar is operably movable relative to the stapling assembly along an axis of the stapling assembly between an extended position and a retracted position. The one or more light sources are used to emit light transmissible through the wall of the tubular organ. Thus, by detecting light transmitted through the wall of the tubular organ, a user of the surgical instrument can position the trocar, the distal edge of the stapling assembly, or both in the tubular organ.

A cartridge assembly and a surgical stapler are provided. The cartridge assembly includes: a staple strip including a staple strip body; a support member; a cartridge cover including a second surface arranged relative to the first surface of the staple strip body, wherein a first gap is formed between the first surface of the staple strip body and the second surface of the cartridge cover; a firing member including a cutting portion, wherein the highest point of the cutting portion is higher than the first surface of the staple strip body. By forming the first gap, the cutting portion of the firing member is higher than the first surface of the staple strip, which facilitates the cutting portion to separate the staples from the staple strip body.

A surgical stapler system for real-time tissue perfusion assessment during clamping includes a powered surgical stapler with a handle assembly, adapter assembly, and an end effector comprising a reload assembly with staples and an anvil assembly. Integrated into the system is a near-infrared spectroscopy (NIRS) system featuring light sources and photodetectors. The method involves clamping tissue between the reload and anvil assemblies, transmitting near-infrared light through the clamped tissue, and detecting backscattered light to determine tissue perfusion levels. The perfusion data is processed and displayed in real-time, allowing adjustments to the clamping force to ensure adequate perfusion before stapling. The system enhances surgical outcomes by providing real-time feedback on tissue viability during critical phases of the stapling procedure.

A surgical stapler for applying a suture to tissue includes a first jaw and a second jaw configured to receive a cartridge. An actuation mechanism translates a drive member distally through the first and second jaws to apply staples to tissue such that a suture, in combination with the staples, forms a purse string when the stapler activated. The cartridge includes a first upper portion and a second lower portion.

A sled (182) for a surgical stapler, the sled including: a base, a plurality of rails, a first detent, and a second detent. The base being configured to translate distally relative to a jaw of the surgical stapler through a firing stroke to eject a plurality of staples into tissue. The plurality of rails (184, 185) extending upwardly from the base and configured to guide distal translation of the sled within the jaw through the firing stroke. The first sled detent (188A, 188B, 189) positioned on a lateral half of the sled. The second sled detent (188A, 188B, 189) positioned on the lateral half of the sled. Wherein each of the first and second sled detents is configured to independently inhibit the sled from translating distally relative to the jaw prior to the firing stroke.

The utility model relates to the technical field of surgical staplers, in particular to an electric endoscope cutting stapler which comprises a chuck, a gun barrel and a handle, the handle is arranged at one end of the gun barrel, the other end of the gun barrel is connected with the chuck, the chuck comprises a nail bin clamping plate, a nail box and a nail abutting seat, and a clamping groove is formed in the bottom of the nail box. The clamping groove extends to the side face of the nail box and forms a step on the upper edge of the side face, the nail abutting base is in a U shape and is in butt joint with the clamping groove of the nail box, the nail abutting base comprises a bottom plate and two side plates, the two side plates are provided with limiting holes, the side face of the nail box is correspondingly provided with limiting blocks capable of extending into the limiting holes, and the outer side face of each limiting block is provided with a disassembling groove for a tool to be placed in. According to the electric endoscopic cutting anastomat, the nail box is clamped in the nail abutting base through cooperation of the limiting block and the limiting hole, the disassembling groove is formed in the limiting block, a linear groove is formed in the clamping face of the nail box and the nail abutting base, tools can stretch into the disassembling groove and the linear groove conveniently, and the nail box and the nail abutting base can be disassembled easily.

The utility model relates to a surgical stitching instrument and an end actuator thereof, the end actuator comprises a first clamping component, a second clamping component and a push broach piece, the second clamping component is movably connected with the first clamping component and can be matched with the first clamping component to clamp tissue, the first clamping component is provided with a feed groove extending in the axial direction and a nail bin provided with anastomosis nails, and the second clamping component is provided with a push broach piece. The feed groove divides the opposite surfaces of the first clamping component and the second clamping component into a first part and a second part which are located on the two sides of the feed groove, the width of the first part is larger than that of the second part, and the nail bin is located on the first clamping component where the first part is located. According to the end executor, the nail bin is arranged on the single side of the feeding groove, the function of precisely suturing tissue needing to be reserved is achieved, meanwhile, the tissue to be cut off can be efficiently cut off, and resource waste cannot be caused; by reducing the width of the second part, the end effector is particularly suitable for treating the situation that the excision range of the tissue to be excided is narrow, and the flexibility and adaptability of surgical operation are remarkably improved.

This disclosure discloses a surgical stapler (100) including a stapler body (200). One end of the stapler body is provided with a receiving opening (203) for receiving a lesion (220) of a specimen. A circular base (206) is positioned proximal to the receiving opening (203), and the circular base defines a curved path (202b) structured to guide one staple of a plurality of staples (300) toward an exit end (203b) defined at the receiving opening. A drive mechanism (202) is structured to displace one staple of the plurality of staples. The drive mechanism has a transport member (202a) configured to displace between a first position (A) and a second position (B) relative to the curved path. An actuator (212) is operably connected to the transport member. The deformation module (204) is positioned near the entrance end (203a) of the receiving end and is structured to deform a portion of one staple.

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.

This application provides a storage device connection assembly and a surgical stapler. The surgical stapler includes an actuator and a stapler body that are detachably connected. The storage device connection assembly includes: a storage device disposed on the actuator; a first electrical connector disposed on the actuator and electrically connected to the storage device; and a second electrical connector disposed on the stapler body. When the actuator is connected to the stapler body along the axial direction of the stapler, the second electrical connector and the first electrical connector are aligned and abut against each other in the axial direction to achieve electrical connection. The first and second electrical connectors of this application abut against each other in the axial direction of the stapler to achieve electrical connection. The electrical connection points of the first and second electrical connectors will not interfere with the mechanical structure, causing deformation of either the first or second electrical connector, resulting in incomplete assembly, improving assembly reliability, and ensuring surgical effectiveness.

An endoscopic stapler of the present invention allows for endoscopic approximation of tissue via stapling, avoiding invasive surgical procedures. The endoscopic stapler provides (1) flexibility compared to a traditional surgical stapler; (2) a long instrument (at least 135 cm) enabling the stapling to occur from a long distance as opposed to the short mechanism with today's surgical staplers; (3) a "bending section" allowing the device to reach to its target (often located at an angulation / corner / behind folds / or needing a retroflexed position); (4) small size to allow insertion through the upper esophageal sphincter (the size-limiting point in our field); and, (5) additional channels to facilitate endoscopic procedures including: one or more cameras, one or more accessory channels, suction port, and irrigation port. These features allow for easier and faster approximation of tissue, improve the efficacy of bariatric endoscopy procedures, increase the durability of tissue approximation, and reduce the costs of effective weight loss intervention.