Apparatus for performing an electrosurgical procedure
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-018/12
A61B-018/14
A61B-017/29
A61B-018/00
출원번호
US-0111642
(2011-05-19)
등록번호
US-8852185
(2014-10-07)
발명자
/ 주소
Twomey, John R.
출원인 / 주소
Covidien LP
인용정보
피인용 횟수 :
81인용 특허 :
103
초록▼
An endoscopic forceps includes a housing having a shaft extending therefrom for treating tissue. A longitudinal axis is defined through the shaft. An end effector assembly is operably coupled to a distal end of the shaft and includes a pair of first and second jaw members. A rotating assembly operab
An endoscopic forceps includes a housing having a shaft extending therefrom for treating tissue. A longitudinal axis is defined through the shaft. An end effector assembly is operably coupled to a distal end of the shaft and includes a pair of first and second jaw members. A rotating assembly operably coupled to the shaft is configured to rotate the shaft and the end effector about the longitudinal axis. A drive assembly is configured to selectively and releasably engage the rotating assembly. Engagement of the rotating assembly with the drive assembly couples the rotating assembly to the shaft such that the shaft is rotatable about the longitudinal axis in a predetermined direction when the rotating assembly is rotated. And, disengagement of the rotating assembly from the drive assembly uncouples the rotating assembly from the shaft such that the shaft is non-rotatable about the longitudinal axis when the rotating assembly is rotated.
대표청구항▼
1. An endoscopic forceps, comprising: a housing having a shaft extending therefrom, the shaft defining a longitudinal axis therethrough;an end effector assembly operably coupled to a distal end of the shaft for treating tissue and including first and second jaw members;a rotating assembly operably c
1. An endoscopic forceps, comprising: a housing having a shaft extending therefrom, the shaft defining a longitudinal axis therethrough;an end effector assembly operably coupled to a distal end of the shaft for treating tissue and including first and second jaw members;a rotating assembly operably coupled to the shaft and configured to rotate the shaft and the end effector about the longitudinal axis; anda drive assembly configured to selectively and releasably engage the rotating assembly, wherein engagement of the rotating assembly with the drive assembly couples the rotating assembly to the shaft such that the shaft is rotatable about the longitudinal axis when the rotating assembly is rotated, and disengagement of the rotating assembly from the drive assembly uncouples the rotating assembly from the shaft such that the shaft is non-rotatable about the longitudinal axis when the rotating assembly is rotated. 2. An endoscopic forceps according to claim 1, wherein a mandrel is coaxially positioned about an outer tube of the shaft and configured to support the rotating assembly and the drive assembly thereon. 3. An endoscopic forceps according to claim 2, wherein the rotating assembly is positioned between a distal collar of the drive assembly and a distal clip operably disposed on the mandrel. 4. An endoscopic forceps according to claim 3, wherein a spring is positioned between a proximal collar of the drive assembly and a proximal flange of the mandrel, the spring configured to at least bias the distal collar of the drive assembly into engagement with the rotating assembly. 5. An endoscopic forceps according to claim 3, wherein the drive assembly is operably coupled to a movable handle associated with the endoscopic forceps, the drive assembly configured such that a predetermined amount of proximal movement of the movable handle moves the distal collar of the drive assembly out of engagement with the rotating assembly such that the rotating assembly spins freely about the mandrel when rotated. 6. An endoscopic forceps according to claim 5, wherein a shaft mount operably couples to the housing and the shaft, the shaft mount configured to allow rotation of the shaft thereabout when 7. An endoscopic forceps according to claim 5, further comprising a latch configured to releasably engage the movable handle, the latch operably coupled to an internal frame of the housing. 8. An endoscopic forceps according to claim 7, wherein the latch is pivotably coupled to the internal frame of the housing and includes a resilient member configured to bias the latch in an upward direction. 9. An endoscopic forceps according to claim 8, wherein the resilient member is a leaf spring. 10. An endoscopic forceps according to claim 7, wherein a locking feature is operably coupled to a proximal end of the movable handle and configured to selectively and releasably engage the latch. 11. An endoscopic forceps according to claim 1, wherein at least one of the first and second jaw members is movable relative to the other jaw member from an open position, wherein the first and second jaw members are disposed in spaced relation relative to one another, to a clamping position, wherein the first and second jaw members cooperate to grasp tissue therebetween. 12. An endoscopic forceps according to claim 11, wherein the spring is a compression spring that cooperates with the drive assembly to provide a closure force on the first and second jaw members in the range from about 3 kg/cm2 to about 16 kg/cm2 when the movable handle is in the latched position. the rotating assembly is rotated and configured to prevent translation of the shaft along the longitudinal axis when the movable handle is moved proximally. 13. An endoscopic forceps, comprising: a housing having a shaft extending therefrom, the shaft defining a longitudinal axis therethrough;an end effector assembly operably coupled to a distal end of the shaft for treating tissue and including first and second jaw members;a rotating assembly operably coupled to the shaft and configured to rotate the shaft and the end effector about the longitudinal axis; anda drive assembly configured to selectively and releasably engage the rotating assembly, wherein engagement of the rotating assembly with the drive assembly couples the rotating assembly to the shaft such that the shaft is rotatable about the longitudinal axis when the rotating assembly is rotated, and disengagement of the rotating assembly from the drive assembly uncouples the rotating assembly from the shaft such that the shaft is non-rotatable about the longitudinal axis when the rotating assembly is rotated,wherein a mandrel is coaxially positioned about an outer tube of the shaft and configured to support a proximal external gear wheel of the rotating assembly and the drive assembly thereon. 14. An endoscopic forceps according to claim 13, wherein a coupling rod includes proximal and distal external gear wheels disposed thereon, wherein the proximal external gear wheel of the coupling rod is configured to mesh with the proximal external gear wheel of the rotating assembly, and the distal external gear wheel of the coupling rod is configured to mesh with a distal external gear wheel of the rotating assembly such that rotation of the rotating assembly rotates the shaft including the first an second jaw members about the longitudinal axis. 15. An endoscopic forceps according to claim 14, wherein the proximal external gear wheel of the rotating assembly is positioned between a distal collar of the drive assembly and a distal clip operably disposed on the mandrel. 16. An endoscopic forceps according to claim 15, wherein a spring is positioned between a proximal collar of the drive assembly and a proximal flange of the mandrel, the spring configured to at least bias the distal collar of the drive assembly into engagement with the proximal external gear wheel of the rotating assembly. 17. An endoscopic forceps according to claim 14, wherein the drive assembly is operably coupled to a movable handle associated with the endoscopic forceps, the drive assembly configured such that a predetermined amount of proximal movement of the movable handle moves the distal collar of the drive assembly out of engagement with the proximal external gear wheel of the rotating assembly such that the rotating assembly spins freely about the mandrel when rotated. 18. An endoscopic forceps according to claim 13, wherein at least one of the first and second jaw members movable relative to the other jaw member from an open position, wherein the first and second jaw members are disposed in spaced relation relative to one another, to a clamping position, wherein the first and second jaw members cooperate to grasp tissue therebetween. 19. An endoscopic forceps according to claim 18, wherein the spring is a compression spring that cooperates with the drive assembly to provide a closure force on the first and second jaw members in the range of about 3 kg/cm2 to about 16 kg/cm2 when the movable handle is in the latched position.
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이 특허에 인용된 특허 (103)
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