Granted Patent B2

US 12,245,773 · App. 18/320,267 · Granted Mar 11, 2025

Inventor: Christopher Pedicini (Franklin, TN)

Assignee: DePuy Synthes Products, Inc.

A61B17/1628A61B17/1604A61B17/1655A61B17/17A61B17/92A61B90/30A61F2/4603A61B2017/00022A61B2017/00137A61B2017/00398A61B2017/00473A61B2017/00477A61B2017/00734A61B2017/924A61B2090/0807

Abstract

Claims (53)

1. A surgical impacting system, comprising:

a first mechanical spring;

a second mechanical spring axially aligned with the first mechanical spring;

an end effector configured to impact bone in forming a cavity in which a prosthesis is configured to be implanted;

a motor; and

a rotatable element, the motor being configured to drive rotational movement of the rotatable element in a first phase and in a second phase;

wherein, in the first phase, the motor is configured to drive the rotational movement of the rotatable element such that the first mechanical spring compresses so as to store first potential energy therein;

in the second phase, the motor is configured to drive the rotational movement of the rotatable element such that the second mechanical spring compresses so as to store second potential energy therein;

release of the first potential energy is configured to apply a forward impacting force to the end effector to allow the end effector to impact the bone in a forward direction; and

release of the second potential energy is configured to apply a rearward impacting force to the end effector to allow the end effector to impact the bone in a rearward direction.

2. The system of claim 1 , wherein the second mechanical spring is axially aligned with the first mechanical spring along an axis;

in the first phase, the rotational movement of the rotatable element is configured to compress the first mechanical spring linearly along the axis; and

in the second phase, the rotational movement of the rotatable element is configured to compress the second mechanical spring linearly along the axis.

3. The system of claim 1 , wherein the rotatable element comprises a gear.

4. The system of claim 1 , wherein the rotatable element comprises a pinion; and

the system further comprises a rack configured to be engaged by the pinion.

5. The system of claim 1 , wherein the rotatable element comprises a cam.

6. The system of claim 1 , further comprising an elongate mass axially aligned with the first and second mechanical springs;

wherein the elongate mass is configured to move linearly relative to the first and second mechanical springs in response to the rotational movement of the rotatable element.

7. The system of claim 6 , further comprising an anvil;

wherein the elongate mass is configured to move linearly in response to the release of the first potential energy and strike a first surface of the anvil to generate the forward impacting force; and

the elongate mass is configured to move linearly in response to the release of the second potential energy and strike a second surface of the anvil to generate the rearward impacting force.

8. The system of claim 7 , wherein the rotatable element comprises a gear.

9. The system of claim 1 , wherein, in the first phase, the second mechanical spring is not compressed; and

in the second phase, the first mechanical spring is not compressed.

10. The system of claim 1 , wherein the end effector is axially aligned with the first and second mechanical springs along an axis.

11. The system of claim 10 , wherein the forward and rearward impacting forces are along the axis.

12. The system of claim 1 , wherein the end effector comprises a broach or a chisel; and

the end effector has a shape conforming to a shape of the prosthesis.

13. The system of claim 1 , further comprising a trigger configured to be selectively actuated by a user to initiate at least one of the first phase and the second phase.

14. The system of claim 1 , further comprising a housing;

wherein the first and second mechanical springs are housed in the housing; and

the end effector extends forward of the housing.

15. The system of claim 14 , wherein the end effector is one of removably coupled to the housing and non-removably coupled to the housing.

16. The system of claim 1 , further comprising an electronic control element configured to control the storing of the first and second potential energies.

17. A surgical impacting system, comprising:

a first mechanical spring;

a second mechanical spring;

an end effector configured to impact bone in forming a cavity in which a prosthesis is configured to be implanted;

a motor;

a gear, the motor being configured to drive rotational movement of the gear such that the first and second mechanical springs are alternately compressed; and

an elongate mass;

wherein the elongate mass is configured to move linearly in response to the rotational movement of the gear;

decompression of the first mechanical spring is configured to cause the elongate mass to strike a first surface such that the end effector is configured to impact the bone in a forward direction; and

decompression of the second mechanical spring is configured to cause the elongate mass to strike a second surface such that the end effector is configured to impact the bone in a rearward direction.

18. The system of claim 17 , further comprising a trigger configured to be selectively actuated by a user to initiate the motor driving the rotational movement of the gear.

19. The system of claim 17 , further comprising a housing;

wherein the first and second mechanical springs are housed in the housing;

the end effector extends forward of the housing; and

the end effector is non-removably coupled to the housing.

20. The system of claim 17 , further comprising an anvil, wherein the first and second surfaces are surfaces of the anvil.

21. The system of claim 17 , further comprising the prosthesis;

wherein the end effector comprises a broach or a chisel.

Continuity (4)

References Cited (77)