Electric motor driven tool for orthopedic impacting
AssigneeDePuy Synthes Products, Inc.
InventorChristopher Pedicini
Life of this patent
Estimating the term…
Abstract
An orthopedic impacting tool comprises a motor, an energy storage chamber, a striker, and an anvil. The motor stores energy in the energy storage chamber and then releases it, causing the striker to apply a controlled force on an adapter to create a precise impact for use in a surgical setting. The tool may further comprise a combination anvil and adapter. The tool further allows forward or backward impacting for expanding the size or volume of the opening or for facilitating removal of a broach, implant, or other surgical implement from the opening. An energy adjustment control of the tool allows a surgeon to increase or decrease the impact energy. A light source and hand grips improve ease of operation of the tool.
Claims25
An orthopedic impacting tool for striking an object, the tool comprising:
- a motor;
- a linear motion converter;
- an energy storage means;
- a detent;
- a control means;
- an adapter, said adapter capable of holding a broach, chisel or other surgical implement;
- and
- a striker, said striker capable of impacting at least two distinct impact surfaces, wherein a first impact surface moves said adapter forward and a second impact surface moves said adapter rearward,
- wherein said control means directs said motor to store an energy in said energy storage means and said energy storage means thereafter releases the energy onto said striker causing said striker to move from a first position to a second position such that said striker is capable of imparting a force upon said adapter in a direction that is dependent at least in part on which surface said striker impacts.
A surgical impactor for striking an object with a repeatable, controlled striking force to impel a surgical implement in one of at least two opposing directions, the impactor comprising:
- a drive mechanism configured to produce the striking force;
- an energy controller configured to control storage and release of energy output from the drive mechanism to an energy storage mechanism to produce the repeatable, controlled striking force;
- an adapter configured to receive the surgical implement to interface the object;
- a striker operable to impact a first surface of an actuator and a different second surface of an anvil responsive to the repeatable, controllable striking force delivered thereto, the impact of the striker on the first surface of the actuator impelling the adapter in a first direction and the impact of the striker on the second surface of the anvil impelling the adapter in a direction opposite the first direction;
- and
- a detent mechanism configured to retain the striker in position.
A surgical impactor for striking an object with a repeatable, controlled striking force to impel a surgical implement in one of at least two opposing directions, the impactor comprising:
- a drive mechanism configured to drive the impactor,
- an energy controller configured to control storage and release of energy output from the drive mechanism to an energy storage device to produce the repeatable, controlled striking force;
- an adapter having a mount configured to receive the surgical implement;
- a striker operable to impact a first surface of an actuator and a different second surface of an anvil responsive to the repeatable, controllable striking force delivered thereto, the impact of the striker on the first surface of the actuator impelling the adapter in a first direction and the impact of the striker on the second surface of the anvil impelling the adapter in a direction opposite the first direction;
- and
- a detent mechanism configured to retain the striker in position.
Dependencies are inferred from the claim text.