公开(公告)号：WO2023012585A1

公开(公告)日：2023-02-09

申请号：PCT/IB2022/056888

申请日：2022-07-26

Applicant: COVIDIEN LP

Inventor： MOHANASUNDARAM, Suresh Kumar Prema ,  CRESTON, Brian J. ,  CHOWANIEC, David M. ,  FERNANDES, Roanit A. ,  KALEPU, Hari Naga Mahesh ,  KAMARAJ, Raja

IPC: A61B17/072

Abstract: A surgical instrument includes a motor-driven drive shaft, a distal firing rod coupled to a driven element of a surgical end effector, and a clutch mechanism coupled between the drive shaft and the distal firing rod. The clutch mechanism is configured to electrically connect the drive shaft and the distal firing rod upon the distal firing rod experiencing a threshold force. The electrical connection signals a processor that the threshold force has been exceeded.

公开(公告)号：WO2023021369A1

公开(公告)日：2023-02-23

申请号：PCT/IB2022/057375

申请日：2022-08-08

Applicant: COVIDIEN LP

Inventor： BUYDA, Andriy ,  CHOWANIEC, David M. ,  CHEN, Xingrui ,  CRESTON, Brian J. ,  BANERJEE, Saumya

IPC: H01R13/24 ,  A61B17/072 ,  A61B90/98 ,  H01R24/86 ,  A61B17/00

Abstract: A surgical instrument including a housing, an elongated portion (120), and a loading unit (200) is disclosed. The elongated portion extends distally from the housing, defines a longitudinal axis, and includes an electrical contact (150). The loading unit is configured to releasably engage the elongated portion. The loading unit includes an electronic component, a proximal portion including an electrical contact (250) in electrical communication with the electronic component, and an end effector coupled to the proximal portion and configured to manipulate tissue. Engagement between the elongated portion and the loading unit causes the electrical contact (150) of the elongated portion to engage the electrical contact (250) of the loading unit thereby electrically connecting the elongated portion and the loading unit.

公开(公告)号：WO2023021405A1

公开(公告)日：2023-02-23

申请号：PCT/IB2022/057621

申请日：2022-08-15

Applicant: COVIDIEN LP

Inventor： CHOWANIEC, David M. ,  CHEN, Xingrui ,  BUYDA, Andriy ,  CRESTON, Brian J. ,  BANERJEE, Saumya

IPC: A61B17/072

Abstract: A surgical stapling device includes a tool assembly and a handle assembly. The tool assembly includes first and second jaw members. The handle assembly includes a rack and a retraction assembly. The rack is operatively coupled to the tool assembly and slidably supported in the handle assembly. The rack includes teeth extending along a length of the rack. The retraction assembly includes a shaft, a lever including a wheel and a lever handle extending from the wheel, and a pawl pivotably secured to the wheel. The lever is secured to the shaft for concomitant rotation therewith. The shaft is transitionable between a disengage state, in which, the pawl is disengaged from the teeth of the rack, and an engaged state, in which, the pawl engages the teeth of the rack such that when the lever handle is rotate about the shaft, the rack is retracted.

公开(公告)号：WO2022248994A1

公开(公告)日：2022-12-01

申请号：PCT/IB2022/054687

申请日：2022-05-19

Applicant: COVIDIEN LP

Inventor： CHOWANIEC, David M. ,  CHEN, Xingrui ,  BUYDA, Andriy ,  BANERJEE, Saumya ,  CRESTON, Brian J.

IPC: A61B17/072

Abstract: A powered handle assembly includes a motor assembly, a rack, a shaft, and a pinion that couples the motor assembly to the rack. The shaft supports the pinion and is movable to move the pinion from a first position engaged with the rack to a second position disengaged from the rack to facilitate manual retraction of the rack.