Attachable instrument guide with detachable handle
View Patent ↗An instrument guide with device coupler, a handle and one or more instrument guide lumens is detachably coupled to an orthopedic implant to facilitate drilling of the fastener holes or to facilitate insertion of self-tapping or self-dripping fasteners. The handle is preferably detachable to facilitate access to the instrument guide lumens. The device coupler detachably engages the implantable device and aligns the instrument guide lumens with the fastener openings on the device.
1. An instrument guide, comprising:
a shaft having a proximal end and a distal end, wherein the distal end comprises a threaded surface;
a handle attached to the proximal end of the shaft;
a device coupler comprising a coupling base with a through lumen and an elongate coupling member comprising a proximal end and a distal end, wherein the distal end is configured with a least one mechanical interfit structure, wherein at least a portion of the elongate coupling member is configured so as to move in the through lumen of the coupling base; and
at least one drill guide member joined to the device coupler;
wherein the proximal end of the elongate coupling member of the device coupler, comprising a threaded surface complementary to the threaded surface of the distal end of the shaft, releasably locks to the distal end of the shaft.
2. The instrument guide as in claim 1 , wherein the mechanical interfit structure comprises helical threads.
3. The instrument guide as in claim 1 , further comprising at least one fixed coupling member extending from the coupling base.
4. The instrument guide as in claim 1 , wherein the coupling base comprises a distal concave surface.
5. The instrument guide as in claim 1 , further comprising a distal tubular shaft joined to the coupling base, the distal tubular shaft having a proximal end, a distal end and a lumen therebetween in which at least a portion of the elongate coupling member movably resides.
6. The instrument guide as in claim 5 , wherein the elongate coupling member has a proximal position and a distal position.
7. The instrument guide as in claim 1 , wherein the mechanical interfit structure comprises a hook that engages a recess or pin on an implantable device.
8. The instrument guide as in claim 1 , wherein the mechanical interfit structure comprises a pivot or clamp member configured to grasp onto a side of an implantable device.