BIOPSY DEVICE LATCHING ASSEMBLY

摘要

A biopsy instrument driver includes a drive member having a laterally extending catch arm and movable between a distal, fired position and a proximal, armed position. A reversible motor has a rotatable output comprising or otherwise being operatively connected to a drive shaft, such that activation of the motor rotates the drive shaft. A translating member is threadably coupled to the drive shaft, wherein rotation of the drive shaft causes axial translation of the translating member along the drive shaft. A latch base is operatively associated with the translating member. A latch arm is pivotally coupled to the latch base, and has a distal portion configured to selectively engage and retain the drive member catch arm, and a proximal portion operatively coupled to the translating member, such that movement of the translating member relative to the latch base pivots latch arm distal portion.

主权项

1. A biopsy instrument driver, comprising:
an instrument drive member coupled to a support structure and having a laterally extending catch arm, the drive member being movable relative to the support structure between a distal, fired position and a proximal, armed position; a motor coupled to the support structure and having a rotatable output; a drive shaft rotatably coupled to the support structure, the drive shaft comprising or otherwise being operatively connected to the motor output such that activation of the motor rotates the drive shaft; a translating member threadably coupled to the drive shaft, such that rotation of the drive shaft causes axial translation of the translating member along the drive shaft relative to the support structure; a latch base movably coupled to the support structure and operatively associated with the translating member; and a latch arm movably coupled to the latch base, the latch arm having a distal portion configured to selectively engage and retain the instrument drive member catch arm, and a proximal portion operatively coupled to the translating member, such that movement of the translating member along the drive shaft relative to the latch base moves latch arm distal portion.