SHROUD RETENTION ARRANGEMENT FOR STERILIZABLE SURGICAL INSTRUMENTS

1 . A surgical instrument, comprising:

a shaft;

an end effector extending distally from said shaft; and

a housing extending proximally from said shaft, said housing comprising:

a first shroud portion;

a second shroud portion;

a working assembly nested in said first shroud portion, wherein said working assembly is detachable from said first shroud portion, wherein said second shroud portion is removably couplable to said first shroud portion to permit said working assembly to be detached from said first shroud portion; and

at least one securing member engaged with said first shroud portion, wherein said at least one securing member is movable to secure said working assembly to said first shroud portion.

2 . The surgical instrument of claim 1 , wherein said at least one securing member is movable between an unlocked position and a locked position.

3 . The surgical instrument of claim 2 , wherein said working assembly comprises a track, and wherein said at least one securing member is configured to engage and move along said track to said locked position.

4 . The surgical instrument of claim 3 , wherein said at least one securing member is prevented from moving along said track to said locked position when said working assembly is not properly nested in said first shroud portion.

5 . The surgical instrument of claim 1 , wherein said working assembly comprises a motor, wherein said first shroud portion comprises a motor nesting compartment configured to receive said motor, and wherein said at least one securing member comprises a motor securing member movable to secure said motor in said motor nesting compartment.

6 . The surgical instrument of claim 5 , wherein said motor nesting compartment comprises a wall including assembly instructions for placing said motor in said motor nesting compartment.

7 . The surgical instrument of claim 5 , wherein said motor comprises a camming surface, wherein said motor securing member is movable along said camming surface to secure said motor in said motor nesting compartment.

8 . A housing for use with a surgical instrument, the surgical instrument including a shaft extending distally from said housing, and an end effector extending distally from the shaft, said housing comprising:

a detachable working assembly;

a first shroud portion configured to receive said detachable working assembly;

a second shroud portion removably couplable to said first shroud portion to permit said detachable working assembly to be detached from said first shroud portion; and

at least one securing member engaged with said first shroud portion, wherein said at least one securing member is movable to secure said detachable working assembly to said first shroud portion.

9 . The housing of claim 8 , wherein said at least one securing member is movable between an unlocked position and a locked position.

10 . The housing of claim 9 , wherein said working assembly comprises a track, and wherein said at least one securing member is configured to engage and move along said track to said locked position.

11 . The housing of claim 10 , wherein said at least one securing member is prevented from moving along said track to said locked position when said working assembly is not properly nested in said first shroud portion.

12 . The housing of claim 8 , wherein said working assembly comprises a motor, wherein said first shroud portion comprises a motor nesting compartment configured to receive said motor, and wherein said at least one securing member comprises a motor securing member movable to secure said motor in said motor nesting compartment.

13 . The housing of claim 12 , wherein said motor nesting compartment comprises a wall including assembly instructions for placing the motor in said motor nesting compartment.

14 . A surgical assembly, comprising:

a housing;

a shaft extending distally from said housing;

an end effector extending distally from said shaft;

a working assembly, comprising:

a motor configured to generate at least one motion to effectuate said end effector, said motor detachable from said housing; and

a transmission assembly operably coupled to said motor, said transmission assembly detachable from said housing; and

working assembly securing means for removably securing said working assembly in said housing.

15 . The surgical assembly of claim 14 further comprising a power source configured to power said motor, wherein said power source is detachable from said housing.

16 . The surgical assembly of claim 15 further comprising a power source securing means for removably securing said power source in said housing.

17 . The surgical assembly of claim 14 , wherein said housing comprises a motor nesting compartment configured to receive said motor.

18 . The surgical assembly of claim 14 , wherein said housing comprises a transmission assembly nesting compartment configured to receive said transmission assembly.

19 . The surgical assembly of claim 14 , wherein said housing comprises an actuation trigger, wherein said actuation trigger is detachable from said housing, and wherein said housing comprises an actuation trigger nesting compartment configured to receive said actuation trigger.

20 . The surgical assembly of claim 14 , wherein said securing means comprises at least one clamping member.