Abstract: A reload assembly includes a shell housing, a knife carrier, and a one-way collar. The knife carrier is movably positioned about an inner housing portion of the shell housing between retracted and advanced positions and supports a snap-ring. The one-way collar is movably supported about the inner housing portion of the shell housing from a retracted position to an advanced position in response to movement of the knife carrier from its retracted position to its advanced position. The snap-ring is movable with the knife carrier to a position proximally of the one-way collar when the one-way collar is in its advanced position to obstruct movement of the knife carrier back towards its advanced position.

Abstract: A device for loading a trocar assembly with an adapter assembly of a surgical stapling instrument is provided. The trocar loading device includes a base member and an engagement member operatively secured to the base member. The base member defines a longitudinal passage for receipt of a trocar assembly and the engagement member releasably secures the trocar member within the base member. The base member includes an alignment feature for aligning the trocar assembly with an adapter assembly.

Abstract: A plug assembly for an electromechanical surgical system includes: a housing defining a proximal facing bore; a pair of electrical contacts disposed within the housing, each electrical contact including a distal end portion projecting distally from a distal end of the housing; and a proximal end portion disposed within the proximal facing bore of the housing; a ribbon cable having a distal end portion electrically connected to the proximal end portion of each of the pair of electrical contacts, and being disposed with the proximal facing bore of the housing; and an encapsulating material filling the proximal facing bore of the housing.

Abstract: A plug assembly for an electromechanical surgical system includes: a housing defining a proximal facing bore; a pair of electrical contacts disposed within the housing, each electrical contact including a distal end portion projecting distally from a distal end of the housing; and a proximal end portion disposed within the proximal facing bore of the housing; a ribbon cable having a distal end portion electrically connected to the proximal end portion of each of the pair of electrical contacts, and being disposed with the proximal facing bore of the housing; and an encapsulating material filling the proximal facing bore of the housing.

Abstract: A loading unit includes a shell assembly and a locking collar. The shell assembly has an annular ring that defines a locking slot and a proximal opening. The proximal opening configured to receive a distal end portion of the surgical instrument. The locking collar is rotatably disposed about the annular ring. The locking collar has a body including a flexible tab that has an inwardly extending lock. The locking collar is moveable about the annular ring between a locked and unlocked configuration. In the locked configuration, the lock passes through the locking slot and into the proximal opening of the annular ring. In the unlocked configuration, the body of the locking collar is rotated about the annular ring from the locked configuration to move the lock from within the proximal opening.

Abstract: A reload assembly includes a shell housing, a knife carrier, and at least one engagement member. The shell housing includes an inner housing portion and an outer housing portion that is spaced from the outer housing portion to define an annular cavity. The knife carrier defines a longitudinal axis and supports a knife. The knife carrier also defines a stepped central bore having a distal portion and a proximal portion and has a shoulder positioned between the distal and proximal portions. The at least one engagement member is supported on the knife carrier and is positioned to engage the inner housing portion of the shell housing when the knife carrier is in its retracted position to retain the knife carrier in the retracted position.

Abstract: A surgical device includes a handle assembly having a controller and an adapter assembly including a tubular housing having a proximal end portion configured to couple to the handle assembly and a distal end portion. The adapter assembly also includes a load sensing assembly disposed with the tubular housing. The load sensing assembly is configured to measure a load exerted on the tubular housing and includes: a sensor body having a pocket defined therein; a load sensor circuit disposed within the pocket and coupled to the sensor body; and a signal processing circuit disposed within the pocket and electrically coupled to the load sensor circuit. The load sensing assembly further includes a cover disposed over the pocket and enclosing the load sensor circuit and the signal processing circuit therein, the cover being coupled to the sensor body thereby forming a first hermetic seal therebetween.

Abstract: A method of assembling a hermetically sealed printed circuit board includes: securing a flange of a cap against an electrical contact region on a first side of a substrate, the flange extending across a first end portion of a wall of the cap, the wall extending around the electrical contact region and including a second end portion disposed in an open configuration; and closing the second end portion of the wall to form a hermetically sealed chamber around the electrical contact region.

Abstract: A surgical instrument includes a shell assembly and an adapter. The shell assembly includes a shell housing, a plurality of staples, a staple pusher, a staple actuator configured to engage the staple pusher, a knife member, and a knife carrier supporting the knife member. The adapter includes a staple band operatively coupled to an actuation mechanism for axial displacement, a knife band at least partially received within the staple band, and a cam ring rotatably supported about the knife band. The staple band is configured to releasably engage the staple actuator. The knife band is operatively coupled with an actuation mechanism for axial displacement. The cam ring is rotatable between an engaged position in which the knife carrier engages the cam ring for concomitant axial displacement with the knife band and a disengaged position in which the knife carrier is disengaged from the cam ring.

Abstract: A reload assembly a shell housing, a staple cartridge, a pusher assembly, a knife carrier, an annular knife, and a spring clip. The shell housing includes an inner housing portion that defines a central bore. The knife carrier includes a body defining a longitudinal axis and a cutout and is movable within the shell housing between advanced and retracted positions. The spring clip is supported on the inner housing portion of the shell housing and has a locking tang and an engagement portion. The spring clip is movable from a first position in which the locking tang is received within the cutout of the knife carrier to obstruct advancement of the knife carrier to a second position in which the locking tang is removed from the cutout of the knife carrier.

Abstract: A method of encapsulating and hermetically sealing a printed circuit board of a flex cable includes: positioning a printed circuit board portion of a flex cable into a channel defined in a first mold half of a mold, the printed circuit board portion including a substrate and electronic components mounted on the substrate; mounting a second mold half onto the first mold half to enclose the channel of the first mold half and form a cavity within the mold; and filling the cavity of the mold with an encapsulation material through an inlet opening defined through the mold.

Abstract: The present disclosure relates to force sensors and force sensor substrates for use with surgical devices. A force sensor includes a substrate, a plurality of sensing elements, a distal plate, and a pin block assembly. The substrate includes a proximal portion and a distal portion including a proximally-facing surface in fluid communication with a distal surface via an opening extending therebetween. The plurality of sensing elements are mounted on a sensing area of the distal surface of the substrate. The distal plate is welded to the distal surface of the substrate, hermetically sealing the plurality of sensing elements between the distal plate and the distal surface of the substrate. The pin block assembly is welded to the proximally-facing surface of the distal portion of the substrate, hermetically sealing distal ends of a plurality of conductive pins between the pin block assembly and the substrate.

Abstract: A reload assembly includes a shell housing, a knife carrier, and at least one engagement member. The shell housing includes an inner housing portion and an outer housing portion that is spaced from the inner housing portion to define an annular cavity. A catch is supported within the annular cavity. The knife carrier defines a longitudinal axis and supports a knife. The knife carrier also supports a resilient locking member that is positioned to engage the catch when the knife carrier is in its retracted position after the reload assembly has been fired to retain the knife carrier in the retracted position.

Abstract: An adapter assembly for connecting a loading unit to a handle assembly is provided. The adapter assembly includes a sleeve, a removable trocar assembly releasably securable with the sleeve, and a locking assembly configured to releasably secure the trocar assembly within the sleeve. The locking assembly includes first and second button members and corresponding first and second locking members for releasably securing the trocar assembly.

Abstract: A method of hermetically sealing electronic components of a wiring harness and integrating the wiring harness into a surgical device includes: positioning a tube around a printed circuit board and a first end section of a first flex cable of a wiring harness that is electrically coupled to a first end portion of the printed circuit board at a first connection area such that a first end portion of the tube extends axially beyond the first end section of the first flex cable and a second end portion of the tube extends axially beyond a second end portion of the printed circuit board; and filling at least a portion of the tube with an encapsulate to form a hermetic seal within the tube.

Abstract: The present disclosure relates to force sensors and force sensor substrates for use with surgical devices.

Abstract: A surgical instrument includes a shell assembly and an adapter. The shell assembly includes a shell housing, a plurality of staples, a staple pusher configured to eject the plurality of staples from the shell housing, a staple actuator configured to engage the staple pusher, a knife member, and a knife carrier supporting the knife member. The adapter includes a staple band operatively coupled to an actuation mechanism for axial displacement, a knife band at least partially received within the staple band, and a cam ring rotatably supported about the knife band. The staple band is configured to releasably engage the staple actuator. The knife band is operatively coupled with an actuation mechanism for axial displacement. The cam ring is rotatable between an engaged position in which the knife carrier engages the cam ring for concomitant axial displacement with the knife band and a disengaged position in which the knife carrier is disengaged from the cam ring.

Abstract: An adapter assembly for connecting a loading unit to a handle assembly is provided. The adapter assembly includes a sleeve, a trocar assembly releasably securable with the sleeve, and a retaining mechanism configured to releasably secure the trocar assembly within the sleeve and to facilitate cleaning and sterilizing of the adapter assembly.

Abstract: A circular stapler including a cartridge assembly and an anvil assembly is provided. The cartridge assembly includes a rotatable drive shaft and the anvil assembly includes first and second pull cables. When the anvil assembly engages the cartridge assembly, retraction of the first pull cable effects clamping of tissue between the anvil assembly and the cartridge assembly, and retraction of the second pull cable effects stapling and cutting of the clamped tissue.

Abstract: The present disclosure relates to force sensors and force sensor substrates for use with surgical devices.