Surgical adapter assemblies for use between surgical handle assembly and surgical end effectors
Adapter assemblies are provided for selectively interconnecting a surgical end effector that is configured to perform at least a pair of functions and a surgical device that is configured to actuate the end effector, wherein the adapter assembly includes an adapter knob housing configured and adapted for connection with the surgical device and to be in operative communication with each of the at least one rotatable drive shaft of the surgical device, the adapter knob housing defining a lumen extending longitudinally therethrough and a ring gear formed in an inner surface of the lumen of the adapter knob housing, the ring gear defining an internal array of gear teeth which are engaged with a spur gear of a rotatable drive shaft. The adapter knob housing may be a unitary member and may be formed of plastic.
1. An adapter assembly for selectively interconnecting a surgical end effector that is configured to perform a function and a surgical device that is configured to actuate the end effector, the end effector including at least one axially translatable drive member, and the surgical device including at least one rotatable drive shaft, the adapter assembly comprising:
an adapter knob housing configured and adapted for connection with the surgical device and to be in operative communication with each of the at least one rotatable drive shaft of the surgical device, the adapter knob housing including:
a body portion formed as a single unitary molded component, the body portion defining a lumen extending longitudinally therethrough and an open proximal end, the body portion including a ring gear formed in an inner surface thereof and defining an internal array of gear teeth extending into the lumen; and
a cap joined to the open proximal end of the body portion;
an outer tube having a proximal end supported by the adapter knob housing and a distal end configured and adapted for connection with the end effector, wherein the distal end of the outer tube is in operative communication with each of the at least one axially translatable drive member of the end effector; and
a drive transmitting assembly including a proximal rotatable drive shaft rotatably supported in the adapter knob housing and having a spur gear supported on a distal end thereof and a proximal end connectable to the rotatable drive shaft of the surgical device, the spur gear engaged with the internal array of gear teeth of the ring gear;
wherein when the adapter assembly is connected to the surgical device and the end effector, rotation of the rotatable drive shaft of the surgical device results in rotation of the proximal drive shaft, and wherein rotation of the proximal drive shaft results in rotation of the adapter knob housing via the ring gear to rotate the end effector.
2. The adapter assembly according to claim 1 , wherein the adapter knob housing is formed of plastic.
3. The adapter assembly according to claim 1 , wherein the cap of the adapter knob housing defines a central opening axially aligned with the open proximal end of the body portion.
4. An electromechanical surgical system, comprising:
a hand-held surgical device, including a device housing defining a connecting portion for selectively connecting with an adapter assembly;
an end effector configured to perform at least one function, the end effector including at least one axially translatable drive member; and
an adapter assembly for selectively interconnecting the end effector and the surgical device, the adapter assembly including:
an adapter knob housing configured and adapted for connection with the surgical device and to be in operative communication with each of the at least one rotatable drive shaft of the surgical device, the adapter knob housing including:
a body portion formed as a single unitary molded component, the body portion defining a lumen extending longitudinally therethrough and an open proximal end, the body portion including a ring gear formed in an inner surface thereof and defining an internal array of gear teeth extending into the lumen; and
a cap joined to the open proximal end of the body portion;
an outer tube having a proximal end supported by the adapter knob housing and a distal end configured and adapted for connection with the end effector, wherein the distal end of the outer tube is in operative communication with each of the at least one axially translatable drive member of the end effector; and
a drive transmitting assembly including a proximal rotatable drive shaft rotatably supported in the adapter knob housing and having a spur gear supported on a distal end thereof and a proximal end connectable to the rotatable drive shaft of the surgical device, the spur gear engaged with the internal array of gear teeth of the ring gear;
wherein rotation of the rotatable drive shaft of the surgical device results in rotation of the proximal drive shaft, and wherein rotation of the proximal drive shaft results in rotation of adapter knob housing via the ring gear to rotate the end effector.
5. The electromechanical surgical system according to claim 4 , wherein the adapter knob housing is formed of plastic.
6. The electromechanical surgical system according to claim 4 , wherein the cap of the adapter knob housing defines a central opening axially aligned with the open proximal end of the body portion.
7. An adapter assembly for selectively interconnecting a surgical end effector that is configured to perform a function and a surgical device that is configured to actuate the end effector, the end effector including an axially translatable drive member, and the surgical device including a rotatable drive shaft, the adapter assembly comprising:
an adapter knob housing configured for connection with the surgical device and to be in operative communication with the rotatable drive shaft of the surgical device, the adapter knob housing including:
a body portion formed as a single unitary molded component, the body portion defining a lumen extending longitudinally therethrough and an open proximal end, the body portion including a ring gear formed in an inner surface thereof and defining an internal array of gear teeth extending into the lumen; and
a cap joined to the open proximal end of the body portion;
an outer tube extending distally from the adapter knob housing; and
a drive transmitting assembly supported in the adapter knob housing and configured to be connected to the rotatable drive shaft of the surgical device.
8. The adapter assembly according to claim 7 , wherein the cap of the adapter knob housing defines a central opening axially aligned with the open proximal end of the body portion.