Surgical impact driver adaptors for applying directed torque and linear impact loads during surgical procedures
AssigneeArthrex, Inc.
InventorsJoshua Best, Michael Charles Morris, Kenneth T. Helenbolt, Timothy McIntyre
Life of this patent
Estimating the term…
Abstract
Surgical impact driver adaptors may be connected between a powered surgical instrument and a driven surgical device when performing surgical procedures, such as those involving the implantation of a surgical implant into bone, for example. During surgical procedures, the surgical impact driver adaptors may limit a transfer of a rotational force from the powered surgical instrument to the surgical device until a sufficient axial force is applied to the impact driver adaptor from the powered surgical instrument.
Claims20
A surgical impact driver adaptor, comprising:
- a first connector adapted to receive a rotational force;
- a second connector;
- an outer locking sleeve including a proximal end portion configured to interface with a boss of the first connector and a distal end portion configured to interface with the second connector;
- an anvil coupling including a proximal end portion received within an inner bore of the boss of the first connector,
- wherein the anvil coupling is substantially housed within the boss and the outer locking sleeve;
- the boss of the first connector providing a hammer feature;
- the proximal end portion of the anvil coupling providing an anvil feature configured to mate with and engage the hammer feature;
- and
- a disengagement spring configured to bias the anvil feature and the hammer feature apart, thereby disengaging the second connector from receiving the rotational force until an axial force that exceeds a predefined threshold is applied to the first connector.
A surgical impact driver adaptor, comprising:
- a first connector adapted to receive a rotational force;
- a rotational component operably coupled to the first connector;
- and
- an engagement assembly configured to disengage the rotational component from receiving the rotational force until an axial force that exceeds a predefined threshold is applied to the first connector,
- wherein the engagement assembly includes a hammer feature provided by the first connector, an anvil feature provided by an anvil coupling, and a disengagement spring that is configured to bias the hammer feature and the anvil feature apart until the axial force exceeds the predefined threshold,
- wherein the hammer feature includes a first set of teeth that are configured to engage and mesh with a second set of teeth of the anvil feature.
A surgical impact driver adaptor, comprising:
- a first connector adapted to receive a rotational force;
- a rotational component operably coupled to the first connector;
- an engagement assembly configured to disengage the rotational component from receiving the rotational force until an axial force that exceeds a predefined threshold is applied to the first connector,
- wherein the engagement assembly includes a rear clutch cylinder, a front clutch cylinder, and a disengagement spring that is configured to bias the rear clutch cylinder and the front clutch cylinder apart until the axial force exceeds the predefined threshold;
- and
- a spring arranged between a cap of the first connector and the rear clutch cylinder, wherein the spring is configured to dampen linear impact loads created by the axial force.
Dependencies are inferred from the claim text.