184 results about "Surgical Staplers" patented technology

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.

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.

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 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 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.

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 apparatus for applying at least one adjunct element to at least one of opposing first and second jaws of an end effector of a surgical stapler, wherein each of the first and second jaws includes a stapling surface and an outer surface opposite the respective stapling surface. The apparatus includes: (a) a platform configured to be positioned between the first and second jaws of the end effector; (b) an adjunct element positioned on the platform; and (c) at least one closure surface opposite the platform, wherein the at least one closure surface is configured to mechanically engage the outer surface of at least one of the first or second jaws to transition the end effector from an open state toward a closed state for placing the respective stapling surface of the at least one of the first or second jaws in contact with the at least one adjunct element.

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.

A method for performing an electrosurgical procedure using an electrosurgical instrument. The method includes selecting a desired pose of an end effector with respect to a shaft assembly and conducting a surgical procedure on a patient tissue via the end effector that causes tensions to be exerted on a plurality of articulation cables for the desired pose of the end effector. The method further includes obtaining, by a controller via a plurality of sensors, the tensions that are exerted on the plurality of articulation cables during the surgical procedure and determining whether the tensions exceed a first predetermined tension threshold and in response to determining that the tensions exceed the first predetermined tension threshold, operating at least one motor of the plurality of motors to reduce the tensions until the tensions are at or below the first predetermined tension threshold.

A stapling assembly for a surgical instrument, the stapling assembly comprising: a body extending along a longitudinal axis and having an upper deck; a plurality of dimples 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 stitching assembly also includes a plurality of dimple extensions extending upwardly from the upper deck. Each dimple extension has a respective top surface. The suture assembly also includes at least one upwardly facing surface configured to contact an adhesive of an appendage for securing the appendage to the suture assembly. The at least one upwardly facing surface is disposed at least partially between at least a portion of the upper platform and the top surface of the plurality of dimple extensions, and at least partially laterally spans at least two longitudinal rows of the plurality of dimples.

The present disclosure relates to low cost powered staplers with selectable end stops and provides a surgical stapler including a loading unit having a cartridge with a cartridge distance and a plurality of staples and an anvil forming the plurality of staples upon firing. The surgical stapler further includes a shaft assembly coupled to the loading unit. The shaft assembly includes a drive shaft longitudinally movable within the shaft assembly and configured to actuate the loading unit. The surgical stapler further includes a handle assembly having a power source and a motor coupled to the power source and configured to longitudinally move the drive shaft. The handle assembly further includes a distance setting interface including a plurality of switches, each of the switches corresponding to a travel distance of the motor moving the drive shaft, the travel distance corresponding to the cartridge distance.

A surgical stapler includes a first elongate member having a distal portion that supports an anvil surface, and a second elongate member having a distal portion configured to receive a staple cartridge. The stapler further includes a pin rotatably coupled with the first elongate member, and a clamp member movably coupled with the second elongate member. The clamp member is operable to releasably capture the pin to thereby clamp the first elongate member against the second elongate member. The pin is configured to rotate relative to the first elongate member in response to being captured by the clamp member.

The invention provides a surgical stapler and a control method of the surgical stapler. The surgical stapler includes: an electric drive system including an electric motor; the moving part is in transmission connection with the electric driving system; the end executor is driven by the moving part to execute a target action; and the controller is electrically connected with the motor so as to execute the control method. The control method comprises the following steps: sending a starting signal to a motor according to an instruction to drive an end executor to execute a target action; monitoring operating parameters of the electric drive system; and determining whether the motor is stalled or not based on the operation parameters, and controlling the surgical anastomat to enter a protection state or controlling the surgical anastomat to give an alarm in response to stalling of the motor. In this way, the safety of the surgical stapler can be improved.

An apparatus includes first and second elongate members having first and second stapling surfaces and being configured to releasably couple together. A clamp member is movable from a first position to a second position to approximate the stapling surfaces for clamping tissue. A latch member is transitionable from an unlatched state to a latched state to releasably retain the clamp member in the second position. A firing assembly is actuatable from a home position to fire staples into the clamped tissue. The latch member is transitionable from the unlatched state to the latched state when the clamp member is in the second position while the firing assembly is in the home position. The latch member is inhibited from transitioning from the unlatched state to the latched state when the clamp member is in the second position while the firing assembly is displaced from the home position.

A surgical fastener applier having a housing containing a compartment therein, an elongated member extending distally from the housing and first and second jaws. A firing mechanism is positioned within the housing movable to a second position to effect firing of fasteners. A power pack is removably loadable into the compartment, the power pack having one or both of a) a first motor and a first engagement member removably engageable with the firing mechanism when the power pack is loaded into the compartment to effect movement of the firing mechanism; and b) a second motor and a second engagement member removably engageable with an articulating mechanism in the housing of the surgical fastener applier to effect movement of an articulation mechanism to effect articulation. One or both of a firing position and an articulation position are tracked during the surgical procedure. Sensors are provided to detect select parameters and instrument functions.

An apparatus includes a first stapling assembly, a plurality of staples a plurality of staple drivers, and a second stapling assembly portion. The first stapling assembly portion has a deck surface defining a plurality of apertures. The staple drivers can drive the plurality of staples through the staple apertures of the deck surface. The second stapling assembly can couple with the first stapling assembly portion. The second stapling assembly portion has a section that overlies the deck surface. At least one of the first or second stapling assembly portions include a first support feature that inhibits deflection of the deck surface during stapling.

Software for driving a motor in a powered surgical stapler may include a pause monitoring process that may effectively improve staple form and / or increase local compression of tissue. The pause monitoring process monitors a firing speed of a firing bar driven by a motor and pauses the motor when the firing speed exceeds a speed error threshold. The pause monitoring process may also require a pulse width modulated (PWM) electrical signal driving the motor to have a duty cycle exceeding a duty cycle threshold while firing speed exceeds a speed error prior to pausing the motor. The pause monitoring process may force the firing bar through a predetermined distance immediately after pause. The pause monitoring process may be limited to the number of pauses that may be taken during the firing stroke.

A powered handle for a surgical stapler can have a drive system including an electric motor. The powered handle can include a manual articulation mechanism to articulate a jaw assembly coupled to a reload shaft connected to the handle. The manual articulation mechanism can include a ball screw mechanism that translates an articulation member responsive to rotation of an articulation knob when an instrument shaft is engaged with the handle. The articulation mechanism includes a release function that allows the jaw assembly to return to a longitudinally centered orientation. The powered handle includes a battery pack serving as a power supply for the drive system. A control system can control actuation of the motor based on user inputs and operating parameters of the stapler and can provide certain motor drive profiles for predetermined positions of the stapler. The powered handle can include a manual return mechanism.

A surgical stapler and a control method for the surgical stapler. The surgical stapler comprises: an electric drive system, which comprises an electric motor; a movable member, which is drivingly connected to the electric drive system; an end effector, which executes a target action under the drive of the movable member; and a controller, which is electrically connected to the electric motor to execute a control method. The control method comprises: on the basis of an instruction, sending a start signal to an electric motor, so as to drive an end effector to execute a target action; monitoring operating parameters of an electric drive system; on the basis of the operating parameters, determining whether the electric motor has experienced a locked-rotor condition; and in response to the electric motor having experienced a locked-rotor condition, controlling a surgical stapler to enter a protection state or controlling the surgical stapler to raise an alarm. In this way, the safety of a surgical stapler can be improved.