EP-4741108-A2 - SURGICAL IMPACTING TOOL INTERFACES

EP4741108A2EP 4741108 A2EP4741108 A2EP 4741108A2EP-4741108-A2

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.

Inventors

PEDICINI, CHRISTOPHER

Assignees

DePuy Synthes Products, Inc.

Dates

Publication Date: 20260513
Application Date: 20220510

Claims (15)

A surgical system, comprising: an adapter; and a surgical impacting tool configured to releasably couple to the adapter, the surgical impacting tool comprising: a handpiece, a locking assembly comprising a housing, wherein the locking assembly comprises a locked configuration, in which the adapter is releasably attached to the locking assembly, and an unlocked configuration, in which the adapter is not releasably attached to the locking assembly, and wherein movement of the housing relative to the handpiece is configured to move the locking assembly from the locked configuration to the unlocked configuration, and an actuator on the handpiece and configured to be actuated by a user, wherein the actuator is configured to, with the surgical impacting tool coupled to the adapter, cause the surgical impacting tool to provide a force to the adapter.
The surgical system of claim 1 wherein the housing comprises a tubular member having an inner passageway extending therethrough.
The surgical system of claim 1 or claim 2, wherein the locking assembly comprises a cavity configured to, in the locked configuration, seat a portion of the adapter therein; and a housing of the locking assembly is configured to rotate about a longitudinal axis defined by the cavity to move the locking assembly from the locked configuration to the unlocked configuration.
The surgical system of claim 3, wherein the force is provided to the adapter substantially along the longitudinal axis.
The surgical system of claim 3 or claim 4, wherein the adapter is configured to move into the cavity substantially along the longitudinal axis.
The surgical system of any one of claims 3 to 5, wherein the adapter moving into the cavity is configured to move the locking assembly from the locked configuration to the unlocked configuration.
The surgical system of claim 3, wherein the housing is configured to be manually moved by the user to move the locking assembly from the unlocked configuration to the locked configuration.
The surgical system of claim 3, wherein the locking assembly is biased to the locked configuration and is configured move automatically from the unlocked configuration to the locked configuration.
The surgical system of claim 1, wherein the housing of the locking assembly is configured to be rotated in a first direction configured to move the locking assembly from the locked configuration to the unlocked configuration; and the housing is configured to be rotated in a second, opposite direction configured to move the locking assembly from the unlocked configuration to the locked configuration.
The surgical system of any preceding claim, wherein the housing of the locking assembly is configured to be rotated by a user to move the locking assembly from the unlocked configuration to the locked configuration.
The surgical system of claim 9, wherein the locking assembly is biased to the locked configuration and is configured move automatically from the unlocked configuration to the locked configuration.
The surgical system of claim 11, wherein the locking assembly comprises a cavity and wherein the adapter moving into the cavity is configured to cause the locking assembly to move automatically from the locked configuration to the unlocked configuration.
The surgical system of claim 1, wherein, with the surgical impacting tool coupled to the adapter, the adapter extends in a forward direction; and the force is configured to move the adapter in the forward direction and/or in a rearward direction.
The surgical system of claim 13, wherein the actuation of the actuator is configured to move the adapter cyclically in the forward direction and in the rearward direction.
The surgical system of claim 1, wherein the surgical impacting tool further comprises: a first pawl operably coupled to the housing, and a second pawl operably coupled to the housing; wherein the movement of the housing is configured to move the first and second pawls relative to the handpiece; and with the surgical impacting tool releasably coupled to the adapter, the first and second pawls are each seated against a surface of the adapter.

Description

FIELD The present disclosure relates generally to surgical impacting tool interfaces. BACKGROUND In the field of orthopedics, prosthetic devices, such as artificial joints, are often implanted or seated in a patient's bone cavity. The cavity is typically formed during surgery before a prosthetic device is seated or implanted by, for example, a physician or other medical professional removing and/or compacting existing bone to form the cavity. The prosthetic device, which can also be referred to as a prosthesis, usually includes a stem or other protrusion that is inserted into the cavity. To create the cavity, a physician or other medical professional may use a broach, chisel, or other surgical implement conforming to the shape of the stem of the prosthetic device. In general, the surgical implement is impelled into the implant area to form the cavity. One technique for impelling the surgical implement includes a physician or other medical professional manual hammering the surgical impacting tool to impel the surgical implement into the implant area. Another technique for creating the prosthetic cavity relies on computer-controlled robotic arms for creating the cavity instead of using manual power provided by a physician or other medical professional. Another technique for creating the prosthetic cavity is to drive the surgical implement pneumatically, e.g., by compressed air. Another technique for creating the prosthetic cavity relies on a linear compressor to compress air on a single stroke basis and then, after a sufficient pressure is created, to release the air through a valve and onto a striker to impel the surgical implement. The broach, chisel, or other surgical implement can be removably coupled to the surgical impacting tool to, for example, allow for surgical implements of different sizes and/or shapes to be used with the surgical impacting tool in different surgical procedures to help accommodate a particular patient's needs, to allow for replacement of surgical implements that become worn, damaged, or otherwise undesirable for future use without having to replace a remainder of the surgical impacting tool, and/or to accommodate a surgeon's personal preference of surgical implements. However, various techniques for creating the prosthetic cavity that impel the surgical implement, such as the four techniques discussed above, can loosen the surgical implement's removable coupling to the surgical impacting tool due to the force required to impel the surgical implement. Such loosening may cause the surgical implement to unexpectedly become decoupled from the surgical impacting tool during a surgical procedure, may cause the surgical implement to shake or otherwise move in unintentional direction(s) and thus cause patient harm and/or adversely affect cavity formation, and/or may hinder cavity formation by not allowing the surgical implement to receive and be impelled at full intended force. Accordingly, there remains a need for improved surgical impacting tools. SUMMARY In general, surgical impacting tool interfaces and methods of using surgical impacting tool interfaces are provided. In one aspect, a surgical tool is provided that in one embodiment includes an adapter configured to couple to a surgical implement configured to impact bone, and a locking assembly configured to releasably attach to the adapter. 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. 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 then rotating the adapter about the longitudinal axis. 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. The surgical tool can have any number of variations. For example, the locking assembly can include 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. For another example, the locking assembly can include 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