초록 ▼

A surgical device for performing surgery generally includes a handle assembly, an elongate member extending from the handle assembly, an articulation mechanism operatively associated with the handle assembly, and an end effector. The elongate member has an articulating section and straight section.

A surgical device for performing surgery generally includes a handle assembly, an elongate member extending from the handle assembly, an articulation mechanism operatively associated with the handle assembly, and an end effector. The elongate member has an articulating section and straight section. The articulating section is configured to articulate with respect to the straight section. The articulation mechanism is operatively associated with the handle assembly and the articulating section such that the articulating section articulates toward a first direction relative to the straight section upon movement of the handle assembly towards the first direction with respect to the straight section. The end effector is operatively coupled to the articulating section of the elongate member and includes first and second jaw members. The surgical device further includes a locking mechanism configured for fixing a relative position of first and second jaw members.

대표청구항 ▼

1. A surgical device for performing surgery, comprising: a handle assembly including a cup portion;an elongate member extending from the handle assembly, the elongate member having an articulating section and a straight section, wherein the articulating section is configured to articulate with respe

1. A surgical device for performing surgery, comprising: a handle assembly including a cup portion;an elongate member extending from the handle assembly, the elongate member having an articulating section and a straight section, wherein the articulating section is configured to articulate with respect to the straight section;an articulation mechanism operatively associated with the handle assembly and the articulating section such that the articulating section articulates toward a first direction relative to the straight section upon movement of the handle assembly towards the first direction with respect to the straight section, the articulation mechanism including: an articulation cable plate disposed at least partially within the cup portion, the articulation cable plate coupled with the articulating section of the elongate member; andan articulation lock ring disposed within the cup portion of the handle assembly, the articulation lock ring having a plurality of circumferentially arranged fingers, the articulation cable plate movable between a locked position in which the plurality of fingers engage an inner surface of the cup portion to lock position of the handle assembly with respect to the elongate member and an unlocked position in which the plurality of fingers disengage from the inner surface of the cup portion, whereby the handle assembly is movable with respect to the elongate member;an end effector operatively coupled to the articulating section of the elongate member, the end effector having first and second jaw members, wherein the first and second jaw members are configured to move relative to each other between an open position and an approximated position; anda locking mechanism configured for fixing a relative position of first and second jaw members, the locking mechanism including a first ratchet assembly and a second ratchet assembly positioned within the handle assembly, the first and second ratchet assemblies being moveable relative to each other between an engaged position to lock the relative position of the first and second jaw members and a disengaged position to unlock the relative position of the first and second jaw members. 2. The surgical device of claim 1, wherein the articulating section includes a plurality of articulation links for facilitating articulation of articulating section relative to the straight section. 3. The surgical device of claim 2, wherein the articulation mechanism includes a plurality of articulation cables passing through the articulation links. 4. The surgical device of claim 3, wherein the plurality of articulation cables operatively connect the articulation cable plate with the articulating section, the plurality of articulation cables pulled proximally when the articulation cable plate is in the locked position. 5. The surgical device of claim 4, wherein the articulation mechanism further includes an articulation lock trigger operatively coupled with the articulation cable plate, the articulation lock trigger is configured to move the articulation cable plate between the locked position and the unlocked position. 6. The surgical device of claim 4, wherein the articulation cable plate includes an annular portion and an elongate portion, the annular portion disposed at least partially within the articulation lock ring, whereby the annular portion causes outward flexing of the plurality of fingers when the articulation cable plate is in the locked position. 7. The surgical device of claim 6, wherein the plurality of articulation cables are fixed securely to the annular portion of the articulation cable plate. 8. The surgical device of claim 1, wherein the handle assembly includes a thumb loop operatively connected to the end effector such that actuation of the thumb loop causes an actuation of the end effector. 9. The surgical device of claim 1, wherein the locking mechanism includes a release assembly configured to disengage the first ratchet assembly from the second ratchet assembly. 10. The surgical device of claim 9, wherein the locking mechanism includes a biasing member for biasing the release assembly in a distal direction. 11. The surgical device of claim 9, wherein the release assembly of the locking mechanism includes a trigger, the release assembly being configured to disengage the first ratchet assembly from the second ratchet assembly upon movement of the trigger in a proximal direction. 12. The surgical device of claim 1, wherein the second ratchet assembly is configured to move longitudinally along the handle assembly. 13. The surgical device of claim 1, wherein the end effector is configured to transmit electrosurgical energy to tissue. 14. The surgical device of claim 1 further comprising, a rotational wheel operatively coupled with the end effector, wherein rotation of the rotational wheel causes concomitant rotation of the end effector. 15. The surgical device of claim 14, wherein the rotational wheel is configured to be rotatable independent of the articulation mechanism. 16. The surgical device of claim 1, wherein the articulation cable plate is configured to urge the plurality of fingers radially outward when the articulation cable plate is in the locked position. 17. The surgical device of claim 1, wherein the fingers are made of resilient material. 18. A surgical device for performing surgery, comprising: a handle assembly including a cup portion;an elongate member extending from the handle assembly, the elongate member having an articulating section and a substantially stiff section, wherein the articulating section is configured to articulate with respect to the substantially stiff section;an articulation mechanism operatively associated with the handle assembly and the articulating section, wherein moving the handle assembly in a first direction relative to the substantially stiff section causes the articulating section to articulate towards the first direction relative to the substantially stiff section, the articulation mechanism including: an articulation cable plate disposed at least partially within the cup portion, the articulation cable plate coupled with the articulating section of the elongate member; andan articulation lock ring disposed within the cup portion of the handle assembly, the articulation lock ring having a plurality of circumferentially arranged fingers, the articulation cable plate movable between a locked position in which the plurality of fingers engage an inner surface of the cup portion to lock position of the handle assembly with respect to the elongate member and an unlocked position in which the plurality of fingers disengage from the inner surface of the cup portion, whereby the handle assembly is movable with respect to the elongate member;an end effector operatively coupled to the articulating section of the elongate member, the end effector having first and second jaw members, wherein the first and second jaw members are configured to move relative to each other between an open position and an approximated position; anda locking mechanism configured for fixing a relative position of first and second jaw members, the locking mechanism including a first ratchet assembly and a second ratchet assembly positioned within the handle assembly, the first and second ratchet assemblies being moveable relative to each other between an engaged position to lock the relative position of the first and second jaw members and a disengaged position to unlock the relative position of the first and second jaw members. 19. The surgical device of claim 18, wherein the articulating section includes a plurality of articulation links for facilitating articulation of articulating section relative to the substantially stiff section. 20. The surgical device of claim 19, wherein the articulation mechanism includes a plurality of articulation cables passing through the articulation links. 21. The surgical device of claim 18, wherein the handle assembly includes a thumb loop operatively connected to the end effector such that actuation of the thumb loop causes an actuation of the end effector. 22. The surgical device of claim 18, wherein the locking mechanism includes a release assembly configured to disengage the first ratchet assembly from the second ratchet assembly. 23. The surgical device of claim 22, wherein the locking mechanism includes a biasing member for biasing the release assembly in a distal direction. 24. The surgical device of claim 22, wherein the release assembly of the locking mechanism includes a trigger, the release assembly being configured to disengage the first ratchet assembly from the second ratchet assembly upon movement of the trigger in a proximal direction. 25. The surgical device of claim 24 wherein the second ratchet assembly is configured to move longitudinally along the handle assembly. 26. The surgical device of claim 18, wherein the end effector is configured to transmit electrosurgical energy to tissue. 27. A surgical device for performing surgery, comprising: a handle assembly including a cup portion;an elongate member extending from the handle assembly, the elongate member having an articulating section and a substantially straight section, the articulating section configured to articulate with respect to the substantially straight section;an articulation mechanism operatively associated with the handle assembly and the articulating section, the articulation mechanism including: an articulation cable plate movable at least partially within the cup portion and operable to effect articulation of the articulating section of the elongate member; andan articulation lock ring operable with the articulation cable plate, the articulation cable plate selectively movable to engage the articulation lock ring which, in turn, causes the articulation lock ring to engage the cup portion to maintain a relative position of the articulating section with respect to the substantially straight section;an end effector operably coupled to the articulating section of the elongate member, the end effector having first and second jaw members movable relative to each other between an open position and an approximated position; anda locking mechanism configured for fixing a relative position of the first and second jaw members. 28. The surgical device of claim 27, wherein the articulation lock ring includes a plurality of radially spaced fingers. 29. The surgical device of claim 28, wherein the plurality of radially spaced fingers is configured to frictionally engage the cup portion. 30. The surgical device of claim 27, wherein the handle assembly is movable with respect to the straight portion. 31. The surgical device of claim 30, wherein the articulation lock ring is operable to maintain the handle assembly in a position relative to the substantially straight portion. 32. The surgical device of claim 27, wherein the articulation lock ring surrounds at least a portion of the articulation lock plate.