Patent classifications
A61B17/2841
Forceps knife blade lockout mechanism
A forceps includes jaws, a first shaft having a first slot, a second shaft extending along the first shaft and having a second slot, and a rod that extends along the second shaft. The rod has a third slot including a locking portion and a guide track portion. A pin extends through the first slot, the second slot, and the third slot to prevent deployment of the rod when the pin is in the locking portion and to permit deployment of the rod when the pin is in the guide track portion. A first actuator produces relative movement of the first and second shafts to move the jaws relative to each other and move the pin from the locking portion to the guide track portion of the third slot. A second actuator produces movement of the rod to deploy the rod when the pin is in the guide track portion.
Handle device
A handle device, in particular a surgical-tool handle device, with a first handle element and a second handle element, and with a shear joint by means of which the two handle elements are connected pivotably and separably, and with a coupling unit, which is configured to keep the two handle elements together counter to a separation direction and which comprises at least one coupling element that is configured to establish, depending on a relative position of the handle elements, a form-fit connection of the handle elements counter to the separation direction. The at least one coupling element is embodied as a centering element for centering the form-fit connection.
Surgical instruments comprising an articulation drive that provides for high articulation angles
A surgical instrument is disclosed comprising a shaft, an end effector, and an articulation joint rotatably connecting the end effector to the shaft. The surgical instrument further comprises an articulation drive system configured to permit high degrees of articulation.
BLADE DEPLOYMENT MECHANISMS FOR SURGICAL FORCEPS
A forceps includes first and second shafts, each having a jaw member disposed at a distal end thereof. At least one jaw member is moveable from an open to a closed position for grasping tissue therebetween. At least one jaw member is configured for reciprocation of a blade therethrough. A trigger assembly includes a trigger and at least one linkage coupled to the trigger and to the blade such that rotation of the trigger translates the blade between the retracted and the extended position. An interference member moveable between a locked position and an unlocked position is also provided. The interference member is configured to engage the linkage(s) when in the locked position to inhibit translation of the blade from the retracted to the extended position.
MICROFORCEPS
A forceps device includes forceps deployable through a needle. In one embodiment, both jaws of the forceps are movable with respect to each other, and their movement is controlled by a box slider. In another embodiment, one jaw is fixed and the other jaw is movable. In one embodiment the jaws include teeth that increase in length from the proximal end of the jaws to the distal end of the jaws. In a further embodiment, suction may be achieved through the needle when the forceps are removed.
FEATURES TO ALIGN AND CLOSE LINEAR SURGICAL STAPLER
A surgical stapler includes an anvil half and a cartridge half. The anvil half includes an anvil channel member and an anvil surface. The cartridge half releasably couples with the anvil half and includes a cartridge channel member having a distal portion that receives a staple cartridge, and a latching member coupled to the cartridge channel member and movable between open and closed positions. A resilient member is arranged at a proximal end of one of the anvil half or the cartridge half, and a projection is arranged at a proximal end of the other of the anvil half or the cartridge half. The resilient member is configured to contact and releasably couple with the projection to thereby couple the proximal end of the anvil half with the proximal end of the cartridge half while the latching member is in the open position.
Surgical clip applier comprising adaptive control in response to a strain gauge circuit
A surgical clip applier comprising an electric motor system is disclosed. The electric motor system is configured to drive a clip firing system of the surgical clip applier. The surgical clip applier further comprises a control system configured to control the electric motor system. The control system is configured to monitor a strain gauge circuit to assess the crimping force experienced by the clip firing system. In at least one instance, one or more strain gauges are mounted to a drive shaft and/or jaw of the clip firing system. The control system modifies the operation of the surgical clip applier when the voltage of the strain gauge circuit exceeds and/or falls below a threshold. In at least one instance, the control system modulates the width, or duration, of voltage pulses applied to the electric motor system to control the speed of the electric motor system.
Conductive Instrument
Disclosed is an instrument assembly for a selected procedure. The procedure may include a dissection and neural monitoring. The instrument may be insulated to allow for a selected and precise electrical conductive path.
APPARATUS FOR REMOVING A HOOK WITH A BARB
An apparatus for removing a hook embedded within a tissue is presented. The hook has a barb extending from a point section of the hook. The apparatus includes a clamping device configured to secure the hook. A probe is coupled to the clamping device. The probe has a tip portion configured to fit within a space between the barb and the point section of the hook to allow the hook to be removed from the tissue.
Surgical instrument with dual mode end effector and side-loaded clamp arm assembly
A surgical instrument includes a body, an ultrasonic blade, a clamp arm, and a resilient member. The body includes an electrical conductor and defines a longitudinal axis. The clamp arm is pivotably coupled with the body at a pivot assembly. The clamp arm is operable to compress tissue against the ultrasonic blade. The clamp arm includes an electrode operable to apply RF energy to tissue, wherein the clamp arm is configured to be loaded onto and removed from the body at the pivot assembly along a path that is transverse to the longitudinal axis defined by the body. The resilient member is located within the pivot assembly. The resilient member is configured to provide electrical continuity between the electrode of the clamp arm and the electrical conductor of the body.