[미국특허]
Single actuating jaw flexible endolumenal stitching device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/04
A61B-017/062
A61B-017/00
A61B-017/06
A61B-017/29
출원번호
US-0364353
(2012-02-02)
등록번호
US-8968340
(2015-03-03)
발명자
/ 주소
Chowaniec, Matthew
Taylor, Eric
Hathaway, Peter
출원인 / 주소
Covidien LP
인용정보
피인용 횟수 :
171인용 특허 :
212
초록▼
An end effector for use in an endoscopic stitching device includes a fixed jaw, a moveable jaw, a linkage member, needle engaging blades and a rotatable member. The moveable jaw is pivotably associated with the fixed jaw about a first pivot axis. The linkage member is pivotably associated with the m
An end effector for use in an endoscopic stitching device includes a fixed jaw, a moveable jaw, a linkage member, needle engaging blades and a rotatable member. The moveable jaw is pivotably associated with the fixed jaw about a first pivot axis. The linkage member is pivotably associated with the moveable jaw about a second pivot axis. The needle engaging blade is slidably supported in each of the fixed and moveable jaws. An axial movement of the linkage member causes the moveable jaw to pivot about the first pivot axis with respect to the fixed jaw, and rotation of the rotatable member causes opposed axial movement of the pair of needle engaging blades.
대표청구항▼
1. An end effector for use in an endoscopic stitching device, the end effector comprising: a fixed jaw;a moveable jaw pivotably associated with the fixed jaw and being pivotable about a first pivot axis, each jaw defining a needle receiving recess formed in a tissue contacting surface thereof and a
1. An end effector for use in an endoscopic stitching device, the end effector comprising: a fixed jaw;a moveable jaw pivotably associated with the fixed jaw and being pivotable about a first pivot axis, each jaw defining a needle receiving recess formed in a tissue contacting surface thereof and a longitudinal channel in communication with the needle receiving recess;a linkage member pivotably associated with the moveable jaw about a second pivot axis;a needle engaging blade slidably supported in each of the fixed jaw and the moveable jaw, each needle engaging blade being axially translatable in the longitudinal channel between a first position in which the needle engaging blade partially extends across the needle receiving recess and a second position in which the needle engaging blade does not extend across the needle receiving recess; anda rotatable member defining a helical groove in an outer surface thereof, a proximal end of each needle engaging blade being configured for slidable engagement in the helical groove, wherein the needle engaging blades are disposed on opposed sides of the rotatable member, wherein an axial movement of the linkage member causes the moveable jaw to pivot about the first pivot axis with respect to the fixed jaw, and rotation of the rotatable member causes opposed axial movement of the needle engaging blades. 2. The end effector according to claim 1, further comprising a lead screw operatively coupled to the linkage member, wherein rotation of the lead screw causes axial movement of the linkage member. 3. The end effector according to claim 2, further comprising a coupler operatively engaged with the lead screw, the coupler pivotally connected to the linkage member such that rotation of lead screw, relative to the coupler, axially displaces coupler and pivots the moveable jaw about the first pivot axis. 4. The end effector according to claim 1, further comprising a jaw support member defining a longitudinal axis, wherein the fixed jaw is securely fixed to the jaw support member. 5. The end effector according to claim 4, wherein the jaw support member defines a lumen configured to rotatably support the rotatable member therein and a pair of grooves configured to slidably receive respective needle engaging blades. 6. The end effector according to claim 4, wherein the first pivot axis is disposed on the longitudinal axis defined by the jaw support member. 7. The end effector according to claim 6, wherein the second pivot axis is offset from the longitudinal axis defined by the jaw support member. 8. The end effector according to claim 7, wherein the moveable jaw defines a second longitudinal axis, and wherein the first pivot axis is spaced a first transverse distance from the second longitudinal axis and the second pivot axis is spaced a second transverse distance from the second longitudinal axis, the second transverse distance being greater than the first transverse distance. 9. The end effector according to claim 7, wherein the first pivot axis and the second pivot axis are parallel to one another. 10. The end effector according to claim 4, further comprising a lead screw operatively coupled with linkage member, wherein rotation of the lead screw, relative to the linkage member, causes axial movement of the linkage member. 11. The end effector according to claim 10, wherein the lead screw includes an annular flange projecting radially outward for rotatable engagement with the jaw support member. 12. The end effector according to claim 11, wherein the jaw support member defines an inner circumferential groove for receiving the annular flange of the lead screw therein. 13. The end effector according to claim 1, further comprising an actuation cable coupled to the linkage member, the actuation cable being slidably movable through a longitudinal bore defined in the rotatable member. 14. The end effector according to claim 1, wherein uni-directional rotation of the rotatable member results in axial translation of the needle engaging blades in opposite directions to each other.
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