A61B17/1155

Surgical stapler with removable power pack

A surgical fastener applier including a housing containing a compartment, an elongated member extending distally from the housing, first and second jaws and a firing mechanism positioned within the housing. The firing mechanism is movable between a first position and a second position to effect firing of fasteners into the tissue clamped between the first and second jaws. A cover on the housing is openable to access the compartment. A power pack is removably loadable into the compartment, the power pack having a motor and an engagement member removably engageable with the firing mechanism within the compartment when the power pack is loaded into the compartment to effect movement of the firing mechanism from the first position to the second firing position.

SURGICAL DEVICES WITH MOISTURE CONTROL
20220409330 · 2022-12-29 ·

A surgical device including a handle assembly, an elongated portion, an end effector, a drive shaft, and a wick is disclosed. The wick is disposed within an outer sleeve of the elongated portion and is made from a fibrous material. The wick is configured to transfer moisture from a first portion of the wick to a second portion of the wick.

STAPLING AND CUTTING TO DEFAULT VALUES IN THE EVENT OF STRAIN GAUGE DATA INTEGRITY LOSS

A powered surgical device includes a power source and a motor coupled to the power source. The device may also include a transmission assembly movable by the motor. The device may also include a sensor configured to monitor operation of the transmission assembly and output sensor data. The device may also include a controller configured to: determine position of the transmission assembly and operate the motor based on the position of the transmission assembly and an interruption in the sensor data.

Strain gauge stabilization in a surgical device

A surgical device includes an adapter assembly including a tubular housing having a proximal end portion configured to couple to a handle assembly, and 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 including a pocket defined therein; a load sensor circuit disposed within the pocket and coupled to the sensor body; a signal processing circuit disposed within the pocket and electrically coupled to the load sensor circuit; a cover defining a cavity and 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; and a thermal management material disposed within the cavity and in contact with the load sensor circuit and the signal processing circuit.

Electromechanical surgical stapler including trocar assembly release mechanism
11534172 · 2022-12-27 · ·

An adapter assembly for connecting a surgical reload to an electromechanical handle assembly, includes a trocar assembly release mechanism configured to releasably secure the trocar assembly within an outer tube. The release mechanism includes a release button supported in the outer tube and movable between an extended condition and a depressed condition; a spring clip slidably supported in the outer tube and connected to the release button; and a pair of lock cam pins supported within the outer tube, wherein each lock cam pin is secured to a respective leg of the spring clip, and wherein each lock cam pin is selectively receivable within a respective opening of the pair of openings formed in the trocar housing. The spring clip includes a backspan connected to the release button; and a pair of legs extending from the backspan.

Surgical stapling instrument with telescopic trocar assembly
11534173 · 2022-12-27 · ·

A surgical stapling instrument includes an adapter assembly having a trocar assembly transitionable between extended and retracted configurations. The trocar assembly includes a first member rotatably supporting a lead screw, a second member, and a third member slidable relative to the second member. The second member is operatively coupled to the lead screw such that rotation of the lead screw causes axial displacement of the second member relative to the first member. The third member includes a trocar engageable with the anvil assembly for axial displacement therewith. The third member is transitionable between an engaged state, in which, the third member is operatively coupled to the lead screw such that rotation of the lead screw causes axial displacement of the third member relative to the second member, and a disengaged state, in which, the third member is operatively disengaged from the lead screw.

PURSE-STRING APPLICATOR FOR CIRCULAR STAPLING INSTRUMENTS
20220401101 · 2022-12-22 ·

A purse-string applicator for use in an anastomosis procedure includes an introducer sleeve, a handle assembly, and a support ring. The introducer sleeve includes a tubular body portion having proximal and distal portions. A handle portion is disposed on the proximal portion of the tubular body, and an introducer portion is disposed on the distal portion of the tubular body. The handle assembly includes an elongate shaft portion and a release mechanism. The release mechanism is positionable distal of the distal portion of the introducer sleeve. The support ring is releasably engageable by the release mechanism of the handle assembly and includes an annular body portion and first and second rim portions. The release mechanism releasably retains the support ring adjacent the distal portion of the introducer sleeve. The purse-string applicator may be included in a kit along with an anvil assembly, an adapter assembly, and/or a circular stapling instrument.

METHOD FOR OPERATING SURGICAL INSTRUMENT SYSTEMS
20220406452 · 2022-12-22 ·

A method for adjusting the operation of a surgical instrument using machine learning in a surgical suite is disclosed.

Encapsulated plug assembly for electromechanical surgical devices
11529144 · 2022-12-20 · ·

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.

SURGICAL FASTENING INSTRUMENT
20220395275 · 2022-12-15 ·

A surgical fastening device includes a handle assembly, an elongated portion, a shell assembly, a screw drive, and a firing mechanism. The elongated portion extends distally from the handle assembly. The shell assembly is disposed adjacent a distal portion of the elongated portion, and includes a cartridge assembly and an end effector. The screw drive defines a longitudinal axis. A distal portion of the screw drive is engaged with the end effector. Rotation of the screw drive about the longitudinal axis relative to the elongated portion causes longitudinal translation of the end effector relative to the cartridge assembly. The firing mechanism is disposed at least partially within the end effector. A predetermined amount of proximal movement of the end effector relative to the cartridge assembly is configured to at least partially form fasteners disposed in the cartridge assembly.