Surgical impacting tool interfaces

Patent metadata

Field	Value
Publication number	US-12102369-B2
Application number	US-202117319700-A
Country	US
Kind code	B2
Filing date	May 13, 2021
Priority date	May 13, 2021
Publication date	Oct 1, 2024
Grant date	Oct 1, 2024

Abstract

Various exemplary surgical impacting tool interfaces and methods of using surgical impacting tool interfaces are provided. In general, a surgical impacting tool includes a locking assembly configured to releasably attach to an adapter. In response to engagement with the adapter, the locking assembly is configured to move from an unlocked configuration, in which the adapter is not releasably attached to the surgical impacting tool (nor is any other adapter releasably attached to the surgical impacting tool via the locking assembly), to a locked configuration, in which the adapter is releasably attached to the surgical impacting tool via the locking assembly. The locking assembly is configured to receive the adapter in a longitudinal direction along a longitudinal axis defined by the locking assembly and to automatically lock the adapter to the surgical impacting tool.

First claim

What is claimed is:

1. A surgical tool, comprising:
an adapter;
a surgical implement configured to impact bone, the surgical implement being a broach or a chisel, and the surgical implement either being non-releasably attached to the adapter or being configured to releasably attach to the adapter; and
a locking assembly configured to releasably attach to the adapter, wherein:
the locking assembly has a locked configuration in which the locking assembly is releasably attached to the adapter;
the locking assembly has an unlocked configuration in which the locking assembly is not releasably attached to the adapter;
the locking assembly includes a cavity configured to, in the locked configuration, seat a portion of the adapter therein;
a direction of the impacting is, with the locking assembly releasably attached to the adapter and with the surgical implement either non-releasably attached to the adapter or releasably attached to the adapter, substantially along a longitudinal axis defined by the cavity;
the longitudinal axis defined by the cavity is, with the locking assembly releasably attached to the adapter, coaxial with a longitudinal axis of the adapter;
the locking assembly is configured to move from the unlocked configuration to the locked configuration in response to the adapter being moved into the cavity substantially along a longitudinal axis defined by the cavity; and
the locking assembly is configured to move from the locked configuration to the unlocked configuration in response to a housing of the locking assembly being rotated about the longitudinal axis and then the adapter being moved out of the cavity substantially along the longitudinal axis.

2. The tool of claim 1 , wherein the locking assembly comprises a first pawl defining a first longitudinal axis that is substantially perpendicular to the longitudinal axis defined by the cavity with the locking assembly in the unlocked configuration, and a second pawl defining a second longitudinal axis that is substantially perpendicular to the longitudinal axis defined by the cavity with the locking assembly in the unlocked configuration.

3. The tool of claim 1 , wherein the locking assembly comprises a base having the cavity formed therein, a first pawl pivotally coupled to the base at a first pivot point, and a second pawl pivotally coupled to the base at a second pivot point.

4. The tool of claim 3 , wherein the locking assembly being configured to move from the unlocked configuration to the locked configuration comprises
the adapter being moved into the cavity substantially along the longitudinal axis and thereby causing the first pawl to pivot at the first pivot point and the second pawl to pivot at the second pivot point.

5. The tool of claim 4 , wherein the locking assembly being configured to move from the locked configuration to the unlocked configuration comprises
the housing being rotated about the longitudinal axis and thereby causing the housing to rotate relative to the base, and
thereafter the adapter being moved out of the cavity substantially along the longitudinal axis and thereby causing the first pawl to pivot at the first pivot point and the second pawl to pivot at the second pivot point.

6. The tool of claim 4 , wherein the locking assembly being configured to move from the locked configuration to the unlocked configuration comprises
the housing being rotated about the longitudinal axis and thereby causing the housing to rotate relative to the base, causing the first pawl to pivot at the first pivot point, and causing the second pawl to pivot at the second pivot point, and
thereafter the adapter being moved out of the cavity substantially along the longitudinal axis.

7. The tool of claim 3 , wherein the locking assembly comprises a biasing element that biases the housing to a position corresponding to the unlocked configuration of the locking assembly.

8. The tool of claim 3 , wherein the locking assembly comprises a first biasing element that biases the housing to a position corresponding to the locked configuration of the locking assembly; and
the locking assembly comprises a second biasing element that biases the first and second pawls to positions corresponding to the locked configuration of the locking assembly.

9. The tool of claim 1 , wherein the locking assembly comprises a first pawl defining a first longitudinal axis that is substantially parallel to the longitudinal axis defined by the cavity with the locking assembly in the locked configuration, and a second pawl defining a second longitudinal axis that is substantially parallel to the longitudinal axis defined by the cavity with the locking assembly in the locked configuration.

10. The tool of claim 1 , wherein the locking assembly is configured to automatically move from the unlocked configuration to the locked configuration without the adapter being rotated.

11. The tool of claim 1 , wherein the locking assembly is configured to, in the locked configuration, seat the adapter in the cavity at each of a plurality of predetermined angular orientations relative to the locking assembly.

12. The tool of claim 11 , wherein the plurality of predetermined angular orientations are each about 90 degrees apart from one another.

13. The tool of claim 1 , wherein the surgical implement conforms to a shape of a stem of a prosthetic device.

14. The tool of claim 1 , wherein a surgical impacting tool includes the locking assembly; and
with the surgical implement operably coupled to the locking assembly, the surgical impacting tool is configured to drive the impacting of the surgical implement.

15. The tool of claim 2 , wherein, in response to the adapter being moved into the cavity substantially along the longitudinal axis defined by the cavity, the first pawl is configured to pivot at a first pivot point and the second pawl is configured to pivot at a second pivot point.

16. The tool of claim 2 , wherein the adapter being moved into the cavity substantially along the longitudinal axis defined by the cavity is configured to cause the first pawl to pivot at a first pivot point from a first default configuration and then back toward the first default configuration;
the adapter being moved into the cavity substantially along the longitudinal axis defined by the cavity is configured to cause the second pawl to pivot at a second pivot point from a second default configuration and then back toward the second default configuration; and
the housing of the locking assembly being rotated about the longitudinal axis is configured to cause the first pawl to pivot at the first pivot point and the second pawl to pivot at the second pivot point.

17. The tool of claim 3 , wherein, in response to the adapter being moved into the cavity substantially along the longitudinal axis defined by the cavity, the first pawl is configured to pivot at the first pivot point and the second pawl is configured to pivot at the second pivot point.

18. The tool of claim 3 , wherein the adapter being moved into the cavity substantially along the longitudinal axis defined by the cavity is configured to cause the first pawl to pivot at the first pivot point from a first default configuration and then back toward the first default configuration;
the adapter being moved into the cavity substantially along the longitudinal axis defined by the cavity is configured to cause the second pawl to pivot at the second pivot point from a second default configuration and then back toward the second default configuration; and
the housing of the locking assembly

Assignees

• Depuy Synthes Products Inc

Inventors

• Pedicini Christopher

Classifications

• A61B2017/00477

  Coupling (A61B2017/0046 takes precedence) · CPC title

• A61B17/1604

  Chisels; Rongeurs; Punches; Stamps · CPC title

• A61B17/1675

  for the knee · CPC title

• A61B17/1668

  for the upper femur (A61B17/164 takes precedence) · CPC title

• B25D17/082

  Retainers consisting of a swinging yoke or latching means (B25D17/086 takes precedence) · CPC title