Apparatus for endoscopic procedures
First Claim
1. An end effector for performing a surgical function and being connectable to an electromechanical power source, the end effector comprising:
- an upper jaw and a lower jaw, at least one of the upper jaw and the lower jaw being movable in relation to the other of the upper jaw and the lower jaw, wherein the lower jaw of the end effector is configured to selectively receive a cartridge assembly;
a drive beam slidably supported in the lower jaw and being translatable through each of the upper jaw and the lower jaw to move the lower jaw relative to the upper;
a cartridge assembly configured for loading into the lower jaw, the cartridge assembly including an actuation sled slidably supported therein and being configured to expel at least a portion of a plurality of staples loaded in the cartridge assembly upon a distal movement of the actuation sled from a proximal-most position;
a drive screw rotatably supported in the lower jaw, wherein the drive beam is threadably supported on the drive screw, whereby rotation of the drive screw results in axial translation of the drive beam, wherein the drive screw defines a proximal coupling socket;
a proximal coupling hub defining a proximal facing opening;
a lock actuator having at least a first position and a second position; and
a lock bar supported in the proximal coupling hub and being operatively engageable by the lock actuator, the lock bar including;
a first position in which the lock bar does not extend across the opening of the proximal coupling hub; and
a second position in which the lock bar at least partially extends across the opening of the proximal coupling hub.
1 Assignment
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Accused Products
Abstract
An electromechanical surgical device is provided and includes an end effector configured to perform at least one function; and a shaft assembly. The end effector includes a rotatable drive screw having a coupling member at a proximal end thereof; and a flexible drive cable rotatably supported therein and extending therefrom, wherein the flexible drive cable receives rotational forces and transmits said rotational forces to the drive screw to actuate the end effector. The shaft assembly includes a proximal neck housing supported at a distal end of the outer tube; and a distal neck housing pivotally connected to the proximal neck housing, wherein a distal end of the distal neck housing is configured and adapted for operative connection with the end effector. In use, when the end effector is connected to the shaft assembly, the flexible drive cable extends through the proximal neck housing and the distal neck housing.
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Citations
20 Claims
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1. An end effector for performing a surgical function and being connectable to an electromechanical power source, the end effector comprising:
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an upper jaw and a lower jaw, at least one of the upper jaw and the lower jaw being movable in relation to the other of the upper jaw and the lower jaw, wherein the lower jaw of the end effector is configured to selectively receive a cartridge assembly; a drive beam slidably supported in the lower jaw and being translatable through each of the upper jaw and the lower jaw to move the lower jaw relative to the upper; a cartridge assembly configured for loading into the lower jaw, the cartridge assembly including an actuation sled slidably supported therein and being configured to expel at least a portion of a plurality of staples loaded in the cartridge assembly upon a distal movement of the actuation sled from a proximal-most position; a drive screw rotatably supported in the lower jaw, wherein the drive beam is threadably supported on the drive screw, whereby rotation of the drive screw results in axial translation of the drive beam, wherein the drive screw defines a proximal coupling socket; a proximal coupling hub defining a proximal facing opening; a lock actuator having at least a first position and a second position; and a lock bar supported in the proximal coupling hub and being operatively engageable by the lock actuator, the lock bar including; a first position in which the lock bar does not extend across the opening of the proximal coupling hub; and a second position in which the lock bar at least partially extends across the opening of the proximal coupling hub. - View Dependent Claims (2, 3, 4, 5)
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6. An end effector for performing a surgical function and configured to couple to a shaft assembly, the end effector comprising:
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a coupling hub defining an opening; a lock actuator movable between a first actuator position and a second actuator position and being biased into the second actuator position; and a lock bar movable between a first bar position and a second bar position in which the lock bar extends at least partially across the opening, the lock bar being biased into the first bar position, such that when the lock actuator is in the second actuator position, the lock actuator moves the lock bar into the second bar position and when the lock actuator is in the first position the lock bar is moved into the first position. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A surgical device comprising:
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a shaft assembly including a distal portion defining a notch therein; and an end effector including; a coupling hub defining an opening, the coupling hub configured to couple to the distal portion of the shaft; a lock actuator configured to engage the notch, the lock actuator movable between a first actuator position and a second actuator position when engaged with the notch and being biased into the second actuator position; and a lock bar movable between a first bar position and a second bar position in which the lock bar extends at least partially across the opening, the lock bar being biased into the first bar position, such that when the lock actuator is in the second actuator position, the lock actuator moves the lock bar into the second bar position and when the lock actuator is in the first position the lock bar is moved into the first position. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification