| 摘要 |
An apparatus for operating on tissue comprises a body, a lever, an end effector, and a tissue severing assembly. The end effector has a pair of jaws configured to open and close on tissue. The end effector is also capable of delivering RF energy to the tissue. The lever is configured to drive the pair of jaws. The tissue severing assembly comprises a trigger having at least one elongate member, at least one gear, and a firing beam. The trigger may also comprise a button operable to activate the RF energy. The firing beam is operable to sever tissue captured between the jaws. The at least one elongate member, at least one gear, and firing beam are associated such that longitudinal movement of the trigger in a first direction causes longitudinal movement of the firing beam in a second direction. |
| 主权项 |
1. An apparatus for operating on tissue, the apparatus comprising:
(a) a body, wherein the body comprises a distal end and a proximal end, wherein the body defines an elongate opening, wherein the proximal end of the body defines a first scissor grip; (b) an end effector, wherein the end effector comprises a first jaw and a second jaw, and wherein the first jaw is selectively pivotable toward and away from the second jaw; (c) a lever pivotably coupled to the body, wherein the lever comprises a distal end and a proximal end, wherein the first jaw is coupled to the distal end of the lever, wherein the lever is configured to drive the first jaw toward and away from the second jaw, wherein the proximal end of the lever defines a second scissor grip; and (d) a tissue severing assembly, wherein the tissue severing assembly comprises:
(i) a gear, wherein the gear is rotatable about a first axis,(ii) a longitudinally sliding trigger, wherein the trigger is slidably disposed within the elongate opening, wherein the trigger comprises an elongate member extending distally from the trigger, wherein the elongate member is engaged with the gear, and(iii) a firing beam engaged with the gear, wherein the trigger is operable to drive the firing beam. |
