Compound angle laparoscopic methods and devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/00
A61B-019/00
A61B-001/00
출원번호
US-0775724
(2010-05-07)
등록번호
US-8562592
(2013-10-22)
발명자
/ 주소
Conlon, Sean P.
Weisenburgh, II, William B.
출원인 / 주소
Ethicon Endo-Surgery, Inc.
인용정보
피인용 횟수 :
20인용 특허 :
229
초록▼
Methods and devices are provided for performing minimally invasive surgical procedures. In one embodiment, a surgical device is provided that include an elongate shaft having a distal portion configured to be movable between a first configuration in which the distal portion of the shaft is substanti
Methods and devices are provided for performing minimally invasive surgical procedures. In one embodiment, a surgical device is provided that include an elongate shaft having a distal portion configured to be movable between a first configuration in which the distal portion of the shaft is substantially straight or linear and a second configuration in which the distal portion of the shaft is articulated at a compound angle. The shaft's distal portion can include two articulation joints to facilitate formation of the compound angle.
대표청구항▼
1. An articulating laparoscopic access device, comprising: an elongate shaft;a first linkage having proximal and distal ends, the proximal end of the first linkage being pivotally coupled to a distal end of the elongate shaft at a first pivot point; anda second linkage having proximal and distal end
1. An articulating laparoscopic access device, comprising: an elongate shaft;a first linkage having proximal and distal ends, the proximal end of the first linkage being pivotally coupled to a distal end of the elongate shaft at a first pivot point; anda second linkage having proximal and distal endsan actuator coupled to the distal end of the second linkage and being longitudinally movable relative to the elongate shaft; andfirst and second linkage bars coupled to opposite sides of each of the first and second linkages, each linkage bar having proximal and distal ends, the proximal end of each of the first and second linkage bars being pivotally coupled to the distal end of the first linkage by a second pivot point, and the distal end of each of the first and second linkage bars being pivotally coupled to the proximal end of the second linkage by a third pivot point, wherein a first range of motion of the linkage bars is limited such that the first range of motion of the linkage bars about the third pivot point is less than a second range of motion of the linkage bars about the second pivot point; andwherein the distal end of the first linkage, the proximal end of the second linkage, and the first and second linkage bars are movable between a first position longitudinally aligned with a longitudinal axis of the elongate shaft and a second position displaced from the longitudinal axis of the elongate shaft, and wherein the actuator constrains the distal end of the second linkage to movement along the longitudinal axis of the elongate shaft. 2. The device of claim 1, wherein the distal end of the second linkage is pivotally coupled to the actuator at a fourth pivot point. 3. The device of claim 1, wherein the proximal end of each of the first and second linkage bars is seated within a first groove formed in the distal end of the first linkage, and wherein the distal end of each of the first and second linkage bars is seated within a second groove formed in the proximal end of the second linkage, and wherein the first groove defines the first range of motion and the second groove defines the second range of motion. 4. The device of claim 1, wherein the elongate shaft, the first linkage, and the second linkage have an inner lumen extending longitudinally therethrough for receiving a tool. 5. The device of claim 1, further comprising an end effector coupled to the distal end of the second linkage. 6. The device of claim 5, wherein the end effector includes opposed jaws, and the device includes an actuator extending through the elongate shaft, the first linkage, and the second linkage and coupled to a proximal end of the opposed jaws, the actuator being configured to move the opposed jaws between a closed position and an open position. 7. A laparoscopic system, comprising: an articulation device having, an elongate shaft,a first linkage coupled to the elongate shaft at a first joint,a second linkage coupled to the first linkage at a second joint, the second joint being movable radially outward relative to a central axis extending longitudinally along the elongate shaft, andan actuator coupled to a distal end of the second linkage and being longitudinally movable relative to the elongate shaft; anda tool having a flexible elongate shaft with an end effector on a distal end thereof, the flexible elongate shaft being disposable through a lumen extending through the elongate shaft, the first linkage, and the second linkage such that the end effector extends from the distal end of the second linkage, wherein the flexible elongate shaft is bendable to conform to a shape of the lumen as the second joint is moved radially outward;wherein the actuator constrains the distal end of the second linkage to movement along a longitudinal axis of the actuator. 8. The system of claim 7, wherein the first joint comprises a pivot point formed between a distal end of the elongate shaft and a proximal end of the first linkage. 9. The system of claim 7, wherein the second joint comprises a linkage bar having a proximal end pivotally coupled to a distal end of the first linkage at a first pivot point and a distal end pivotally coupled to a proximal end of the second linkage at a second pivot point. 10. The system of claim 7, wherein the end effector is angularly oriented relative to the axis when the second joint is disposed radially outward from the axis. 11. The system of claim 7, wherein the actuator extends along the elongate shaft and has a proximal end positioned proximal to the first joint. 12. The system of claim 11, wherein the distal end of the actuator is coupled to the distal end of the second linkage at a pivot point such that the second linkage is configured to pivot about the pivot point relative to the actuator. 13. The system of claim 11, further comprising a lock configured to lock the actuator in a fixed position relative to the shaft and the first and second linkages. 14. The system of claim 11, wherein the actuator is rigid. 15. The device of claim 1, wherein, when the device is in the second position, longitudinal axes of the first and second linkages are transverse relative to the longitudinal axis of the elongate shaft at first and second angles. 16. The device of claim 1, wherein the proximal end of the first linkage is fixed relative to the longitudinal axis of the elongate shaft. 17. The device of claim 1, wherein the actuator is a rigid rod. 18. The system of claim 11, wherein the actuator is configured to move proximally to move the second joint radially outward relative to the central axis of the elongate shaft.
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