BIPOLAR SCISSOR VESSEL SEALER FORCE LIMITING MECHANISM

    公开(公告)号:US20240358430A1

    公开(公告)日:2024-10-31

    申请号:US18682233

    申请日:2022-10-28

    发明人: Aaron Szabo

    IPC分类号: A61B18/14 A61B18/00

    摘要: A scissor style vessel sealer having a first shaft interconnected to a first jaw by a pivot plate that pivotally couples the first shaft to the first jaw by the pivot and also by a spring that is secured at one end to the first shaft and an opposing end to the pivot plate at a location offset from the pivot and a second shaft connected to a second jaw and pivotally coupled to the first jaw by the pivot. The first shaft and the second shaft are then pivotable from a jaws open position to a jaw closed position. Any further application of force results in the first shaft pivoting relative to the first jaw so that the additional force is not transmitted to the jaws. The first shaft pivoting relative to the first jaw may actuate a button associated with the second shaft.

    Force limiting mechanism for surgical instruments

    公开(公告)号:US12127889B2

    公开(公告)日:2024-10-29

    申请号:US17631008

    申请日:2020-07-28

    摘要: A force limiting apparatus for a surgical instrument to prevent too much force being applied to the jaws of the instrument. The instrument has a body with a drive shaft coupled to a pair of jaws, a bearing tube secured to the drive shaft, and a pair of tracks carrying a pivot pin that is biased into one end of the track. A lever is coupled to the pivot pin and abuts the bearing tube to move the bearing tube and close the jaws when squeezed by a user. If the lever is over actuated, the pivot pin will slide along the track against the bias of the spring assembly with the lever pivoting about the bearing tube rather than the pivot pin. As a result, the additional movement of lever does not result in any addition force being transmitted to the drive shaft via the bearing tube.