Magnetic impactor assembly
AssigneeThink Surgical, Inc.
InventorsJonathan WU, Mark DIXON
Life of this patent
Estimating the term…
Abstract
A magnetic impactor assembly is described herein. The magnetic impactor assembly generally includes a guide receptacle, and an impactor guide magnetically coupled to the guide receptacle to form a magnetic interface therebetween. The guide receptacle is attachable to a surgical device such as a surgical robotic manipulator arm. The impactor guide receives and guides an impactor to permit a user to impact a prosthesis into a bone of a patient in a planned position and orientation. The magnetic impactor assembly reduces the transmission of excessive forces to a patient or the surgical device if an off-axis impaction force is generated on the impactor through the decoupling of the impactor guide from the guide receptacle.
Claims16
A guide assembly for an impactor, comprising:
- an impactor guide having a frame and one or more guide magnetic regions assembled laterally to the frame where the frame has an opening to support and translationally guide the impactor along an impaction axis concentric to the opening;
- a guide receptacle having a bracket connected to a top support, and one or more receptacle magnetic regions complementary to the one or more guide magnetic regions, where the guide receptacle receives the impactor guide and forms a magnetic interface between the one or more receptacle magnetic regions complementary to the one or more guide magnetic regions;
- and
- wherein one of the impactor guide or guide receptacle at least partially breaks from the magnetic interface when an off-axis impaction force is applied to the impactor.
A guide assembly, comprising:
- an impactor guide having a frame and an opening to support and translationally guide an inserted impactor along an impaction axis concentric to the opening, and at least a first magnetic region and a second magnetic region on opposing ends of the frame;
- a guide receptacle for receiving the impactor guide, the guide receptacle having at least a third magnetic region and a fourth magnetic region, wherein the third magnetic region and fourth magnetic region magnetically couple with the first magnetic region and the second magnetic region, respectively, to form a magnetic interface;
- and
- wherein one of the impactor guide or guide receptacle at least partially breaks from the magnetic interface when an off-axis impaction force is applied to the impactor.
A magnetic impactor assembly, comprising:
- a magnetic impactor receptacle having a first magnetic region;
- a magnetic impactor guide having a second magnetic region removably coupled to the first magnetic region to form a magnetic interface;
- an impactor having an impaction axis, said impactor operably associated with the magnetic impactor guide;
- a prosthesis removably attached to an end of the impactor;
- and
- wherein one of the impactor receptacle or impactor guide decouples from the magnetic interface when either:
- (i) a pre-determined impaction force applied to the impactor is exceeded;
- or
- (ii) an impaction force deviating from the impaction axis is applied to the impactor.
(canceled)
(canceled)
A slap-hammer for removing an implant, comprising:
- an impactor guide including a shaft having a first end, a second end, and a magnetic shaft region positioned between the first end and the second end;
- a guide receptacle positioned about the shaft, the guide receptacle having an impaction surface and a magnetic surface, wherein the magnetic surface magnetically couples to the magnetic shaft region to form a magnetic interface;
- and
- an impactor slidable along said shaft, wherein the guide receptacle breaks from the magnetic interface when a threshold amount of force is generated between the impactor and the guide receptacle.
Dependencies are inferred from the claim text.