Surgical device
View Patent ↗A surgical device includes a first jaw and a second jaw moveable relative to the first jaw between a first position, in which the first and second jaws are aligned within a plane, and a second position, in which the second jaw is in non-parallel correspondence to the plane. The surgical device may include a surgical member, e.g., a cutting and/or stapling element, disposed within the first jaw, and a second driver configured to cause relative movement of the surgical member in a direction parallel to the plane. The first and second jaws may include a camming arrangement that is configured to move the second jaw between the first and second positions. The camming arrangement may include a channel disposed along at least a portion of one or both of the first and second jaws, a ball bearing disposed within the channel.
1. A surgical device, comprising:
a first jaw; and
a second jaw coupled to and moveable relative to the first jaw between a closed position and an intermediate open position within a plane, the plane being fixed with respect to the first jaw, the second jaw further moveable between the intermediate open position and a fully opened position by rotating the second jaw with respect to the first jaw about an axis extending within the plane, wherein
between the intermediate open position and the fully opened position, the second jaw is further moveable relative to the first jaw in a direction parallel to the plane, and
a first driver includes at least a spur gear, a worm and a worm gear in turning and gearing relationship with each other, and an externally-threaded screw fixedly connected at one end to the worm gear and in engagement with an internally-threaded bore of the second jaw, the rotation of the gears thereby causing relative movement of the first jaw and the second jaw between a first position and a second position, and
the internally threaded bore of the second jaw is disposed within an arm, the arm configured to move longitudinally within and relative to a sleeve attached to the first jaw, the sleeve and the arm having a camming arrangement that is configured to move the second jaw between the first and second positions.
2. The device according to claim 1 , wherein the camming arrangement includes a channel disposed along at least one of the arm and the sleeve, a cam follower disposed within the channel.
3. A surgical device, comprising:
a first drive shaft rotatable about a rotation axis;
a first jaw;
a second jaw coupled to the first jaw, the second jaw moveable relative to the first jaw by rotation of the first drive shaft between a closed position and an intermediate open position within a plane, the plane being fixed with respect to the first jaw, the second jaw further moveable between the intermediate open position and a fully opened position by rotating the second jaw with respect to the first jaw about an axis extending within the plane;
a surgical member disposed within the first jaw; and
a second driver configured to cause relative movement of the surgical member in a direction parallel to the plane, wherein
the second driver includes at least a spur gears and a worm in turning and gearing relationship with each other and with a pair of additional worm gears, each of the pair of additional worm gears having a centrally-disposed, internally-threaded bore in engagement with one of a pair of externally threaded screws fixedly connected the surgical member, the rotation of the gears thereby causing relative movement of the surgical member;
and wherein the second jaw has an internally threaded bore disposed within an arm, the arm configured to move longitudinally within and relative to a sleeve attached to the first jaw, the sleeve and the arm having a camming arrangement that configured to move the second jaw between the first and second positions.
4. The device according to claim 3 , wherein the camming arrangement includes a channel disposed along at least on of the arm and the sleeve, a can follower disposed within the channel.
5. A surgical device, comprising:
a first jaw; and
a second jaw coupled to and moveable relative to the first jaw between a closed position and an intermediate open position wherein, between the closed position and the intermediate open position, the clamping surfaces of the first and second jaws define first and second planes that remain in parallel correspondence relative to each other, the second jaw further moveable relative to the first jaw between the intermediate open position and a fully opened position wherein, between the intermediate open position and the fully opened position, the first and second planes defined by the clamping surfaces of the first and second jaws are moved out of parallel correspondence relative to each other, the second jaw engaging a lead screw such that rotation of the lead screw actuates the second jaw with respect to the first jaw between the fully opened position, the intermediate open position, and the closed position, wherein the first jaw extends lengthwise along a third plane that is substantially perpendicular to the first plane, and the second jaw extends lengthwise along the third plane when the second jaw is in the closed position, and wherein, between the intermediate open position and a fully opened position, the second jaw is pivotable relative to the first jaw about an axis perpendicular to the third plane.
6. The device according to claim 5 , further comprising a first driver configured to cause relative movement of the first jaw and the second jaw.
7. The device according to claim 6 , wherein the first driver is configured to engage a first rotatable drive shaft that is rotatable about a rotation axis arranged in one of parallel and non-parallel correspondence to the third plane.
8. The device according to claim 7 , further comprising an electromechanical driver configured to rotate the first rotatable drive shaft.
9. The device according to claim 5 , further comprising:
a surgical member disposed within the first jaw; and
a second driver configured to cause relative movement of the surgical member in a direction parallel to the third plane.
10. The device according to claim 9 , wherein the second driver is configured to engage a second drive shaft rotatable about a rotation axis arranged in one of parallel and non-parallel correspondence to the third plane.
11. The device according to claim 9 , wherein the surgical member includes at least one of a cutting element, a stapling element and a thrust plate to which is mounted a cutting element and a stapling element.
12. The device according to claim 10 , further comprising an electromechanical driver configured to rotate the second rotatable drive shaft.
13. A surgical device, comprising:
a first jaw having a first longitudinal axis that lies in a plane; and
a second jaw coupled to and moveable relative to the first jaw between a closed position and an intermediate open position, the second jaw having a second longitudinal axis that, when second jaw is in the closed position and when the second jaw is in the intermediate open position, lies within the plane, the second jaw further moveable between the intermediate open position and a fully opened position by rotating the second jaw with respect to the first jaw, the second longitudinal axis being transverse to the plane when the second jaw is in the fully opened position.