A surgical device includes a tool assembly and a handle assembly. The tool assembly includes a distal portion including a plurality of staples and an anvil assembly movable relative to the distal portion from an open position to a clamped position. The handle assembly includes an approximation mechanism coupled to the anvil assembly and configured to move the anvil assembly from the open position to the clamped position, a force sensor disposed at a distal end of the surgical device, and a controller. The force sensor is configured to sense a change in resistance indicating a force imparted on compressed tissue and on the approximation mechanism. The controller is configured to receive a signal indicative of a force measured by the force sensor and provide an indication of the sensed force.

A force sensor includes a substrate, sensing elements, a flex cable, and a seal assembly. The substrate has proximal and distal surfaces, and a cavity defined therein. The sensing elements are disposed within the cavity of the substrate and the pin block assembly is electrically coupled to the sensing elements. The seal assembly includes at least one gasket, a retainer plate, and a seal restraint. The seal assembly is held under compressive load to seal the cavity of the substrate and protect the sensing element disposed therein.

A surgical stapler is disclosed herein. The surgical stapler comprises a body having a distal end and a proximal end, and the body defines an interior space. A first knob and a second knob are configured adjacent the proximal end of the body. An anvil and trocar assembly is configured adjacent the distal end of the surgical stapler, wherein the anvil and trocar assembly is coupled to the first knob, and the first knob is configured to facilitate the extension and retraction of the anvil and trocar assembly at the distal end of the body. A staple and knife assembly is configured adjacent the anvil and trocar assembly within the body, wherein the staple and knife assembly is coupled to the second knob, and wherein the second knob is configured to facilitate firing of staples and actuation of a knife of the staple and knife assembly sequentially.

A surgical stapler is disclosed herein. The surgical stapler comprises a body having a distal end and a proximal end, and the body defines an interior space. A first knob and a second knob are configured adjacent the proximal end of the body. An anvil and trocar assembly is configured adjacent the distal end of the surgical stapler, wherein the anvil and trocar assembly is coupled to the first knob, and the first knob is configured to facilitate the extension and retraction of the anvil and trocar assembly at the distal end of the body. A staple and knife assembly is configured adjacent the anvil and trocar assembly within the body, wherein the staple and knife assembly is coupled to the second knob, and wherein the second knob is configured to facilitate firing of staples and actuation of a knife of the staple and knife assembly sequentially.

A purse suturing device includes a circular stapler having a tubular stapler head adapted to be inserted inside a section of the hollow viscus to be sutured, a handle with an actuator connected to the stapler head, and an anvil against which the staples may be folded. The anvil has a pole adapted to be inserted into the tubular stapler head. A suturing thread is wound around the hollow viscus and tightened, causing a section of the hollow viscus to be tightened around the pole. The tightened section also includes a pursed, or folded, section of the wall of the hollow viscus, in which two layers of the wall of the hollow viscus are stapled together.

A method for creating a flexible fastener line is disclosed. The fastener line comprises fasteners oriented in directions which are transverse or oblique to a tissue incision created by a cutting member. The fasteners can translate and/or rotate within the tissue when the tissue is stretched thereby creating flexibility within the tissue.

A stapling device includes a handle assembly, an adaptor assembly extending from the handle assembly, and a reload assembly supported on a distal end portion of the adaptor assembly. The reload assembly includes a shell housing, a staple cartridge, a first seal, a staple actuator, and a knife carrier. The first seal is disposed within a cavity of the shell housing and defines a staple actuator opening and a knife carrier opening. The staple actuator includes a proximal leg extending proximally therefrom and through the staple actuator opening of the first seal to provide a fluid seal therebetween. The knife carrier includes a proximal body portion extending proximally therefrom and through the knife carrier opening of the first seal to provide a fluid seal therebetween.

An anastomat includes a body tail plate and a battery pack, a triode and a controller. The elastic sheets for positive and negative signals of the body tail plate are connected to the upper and lower signal conducting sheets in the battery pack by means of a mechanical mechanism, and afterwards are used for outputting a signal for the anastomat. After the power clamping reed of the body tail plate is connected to the power output conducting plate in the battery pack by means of a mechanical structure, the power clamping reed is used for outputting power for the anastomat. The controller is used for controlling the operation of a battery panel in the battery pack, wherein the base of the triode is connected to a pin corresponding to the controller, the collector of the triode is connected to the battery panel, and the emitter of the triode is grounded.

A surgical device includes a handle assembly having: a power source, a motor coupled to the power source, and a controller configured to control the motor. The device also includes an adapter assembly configured to selectively couple to the handle assembly. The adapter assembly includes a clamping transmission assembly movable by the motor. The device also includes a reload configured to selectively couple to a distal portion of the adapter assembly, the reload including a plurality of staples ejectable from the reload. The device further includes an anvil assembly selectively couplable to the distal portion of the adapter assembly and movable relative to the reload. The controller is further configured to control the motor to move the clamping transmission assembly to move the anvil assembly from a distal clamp position to a proximal clamp position and then distally from the proximal clamp position to reduce clamp force.

A trocar release assembly includes a housing, a release button, first and second springs, and a pin. The housing has top and bottom faces, side faces, and end faces. The end faces include opposed openings that define a passage between. The passage is configured to receive a sleeve of a trocar assembly. The release button is movably coupled to the housing and is movable between a compressed position and an expanded position. The first spring is positioned between the housing and the release button to bias the release button towards the expanded position. The pin slides within a chamber of the housing and is slidable between a retracted position and an extended position. The second spring is operably coupled with the pin to bias the pin towards an extended position.