US-12622734-B2 - Offset acetabular shell impactor adapter

US12622734B2US 12622734 B2US12622734 B2US 12622734B2US-12622734-B2

Abstract

An orthopaedic surgical instrument may include an elongated body with an implant end and an impactor end. A latch lever may be pivotally coupled to the elongated body. The latch lever may be moveable between an open position and a latched position in which the latch lever is retained within the body. An acetabular shell component may be rigidly attached to the implant end of the elongated body. An automated surgical impactor may be attached to the impactor end.

Inventors

Daniel E. Lashure
Cory A. Shulaw

Assignees

DePuy Synthes Products, Inc.

Dates

Publication Date: 20260512
Application Date: 20240618

Claims (6)

1 . A method for performing an orthopaedic surgical procedure, the method comprising: securing an acetabular shell component to a first end of an orthopaedic surgical instrument; moving a lever of the orthopaedic surgical instrument from a first position to a second position in response to securing the acetabular shell component to the first end, wherein moving the lever from the first position to the second position comprises (i) pivoting a pivot end of the lever about an elongated body of the orthopaedic surgical instrument, (ii) latching a latch positioned on an opposite latch end of the lever to a pushbutton catch of the orthopaedic surgical instrument positioned in the elongated body so as to secure the lever in the second position, and (iii) applying tension with a leaf spring pivotally coupled to the lever on the acetabular shell component against the first end; and coupling a second end of the orthopaedic surgical instrument to an automated surgical impactor in response to moving the lever.
2 . The method of claim 1 , wherein securing the acetabular shell component to the first end comprises: threading a central threaded hole of the acetabular shell component onto a threaded body of a slideable bolt of the orthopaedic surgical instrument, wherein the threaded body extends outward from the first end of the orthopaedic surgical instrument; positioning a driver tool in a guideway defined by a top surface of the orthopaedic surgical instrument in response to threading the central threaded hole onto the threaded body; and tightening a head of the slideable bolt with the driver tool in response to positioning the driver tool.
3 . The method of claim 1 , further comprising: adjusting a rotational position of the acetabular shell component in response to securing the acetabular shell component to the first end; wherein moving the lever further comprises moving the lever in response to adjusting the rotational position.
4 . The method of claim 1 , further comprising: impacting the acetabular shell component with the automated surgical impactor into a surgically prepared acetabulum of a patient in response to coupling the second end to the automated surgical impactor; depressing the pushbutton catch of the orthopaedic surgical instrument in response to impacting the acetabular shell component, wherein depressing the pushbutton catch comprises unlatching the lever from the second position and releasing tension with the leaf spring; and releasing the acetabular shell component from the first end of the orthopaedic surgical instrument in response to depressing the pushbutton catch.
5 . The method of claim 1 , wherein moving the lever of the orthopaedic surgical instrument from the first position to the second position comprises contacting a top surface of the elongated body of the orthopaedic surgical instrument with a body of the lever; wherein the pushbutton catch is positioned on a side surface of the elongated body that extends away from the top surface of the elongated body.
6 . The method of claim 1 , wherein pivoting the pivot end of the lever about the elongated body of the orthopaedic surgical instrument comprises compressing a helical spring between the pivot end of the lever and a portion of the elongated body.

Description

This application is a divisional application and claims priority to U.S. patent application Ser. No. 17/314,404, now U.S. Pat. No. 12,011,203, which was filed on May 7, 2021, the entirety of the above-identified application is hereby incorporated by reference. TECHNICAL FIELD The present disclosure relates generally to orthopaedic instruments for use in the performance of an orthopaedic joint replacement procedure, and more particularly to orthopaedic surgical instruments for use in the performance of a hip replacement procedure. BACKGROUND Joint arthroplasty is a well-known surgical procedure by which a diseased and/or damaged natural joint is replaced by a prosthetic joint. For example, in a hip arthroplasty surgical procedure, a patient's natural hip ball and socket joint is partially or totally replaced by a prosthetic hip joint. A typical prosthetic hip joint includes an acetabular prosthetic component and a femoral head prosthetic component. An acetabular prosthetic component generally includes an outer shell configured to engage the acetabulum of the patient and an inner bearing or liner coupled to the shell and configured to engage the femoral head. The femoral head prosthetic component and inner liner of the acetabular component form a ball and socket joint that approximates the natural hip joint. Typical joint arthroplasty surgical procedures include impaction of surgical instruments (e.g., broaches, chisels, or other cutting tools) and/or prosthetic implants into the patient's bone. Historically, impaction has been performed by an orthopaedic surgeon manually striking a surgical instrument using a surgical mallet or hammer. Such manual impaction can be unpredictable and imprecise. Additionally, typical manual impaction instruments may require the surgeon to hold the instrument with one hand and strike the instrument with a mallet held in the surgeon's other hand. Certain automated surgical impactors are capable of performing a series of percussive impacts that each provide a controlled amount of impaction energy. An automated surgical impactor may be used with one or more adapters to connect to various surgical instruments and/or implants. Typical adaptors connect to the surgical instrument and/or implant using a rigid drive train including one or more drive shafts, gear trains, or other rigid mechanical connections. SUMMARY According to one aspect, an orthopaedic surgical instrument includes an elongated body extending from a first end to a second end, a slideable bolt, a carrier slideably coupled to the elongated body, an elongated lever that extends from a pivot end to a latch end, a leaf spring, and a pushbutton catch coupled to the elongated body. The first end of the elongated body is configured to be received by an automated surgical impactor. The slideable bolt includes a head and a threaded body positioned at the second end of the elongated body. The threaded body extends outward from the second end of the elongated body. A notch defined in the carrier engages the head of the slideable bolt. The pivot end of the elongated lever is pivotally coupled to the elongated body. The leaf spring has a first end that is pivotally coupled to the lever and a second end that is pivotally coupled to the carrier such that movement of the lever causes movement of the carrier. The lever is movable between a first position in which the latch end is spaced apart from the elongated body and a second position in which the latch end is captured by the pushbutton catch. In the second position the leaf spring urges the carrier inward away from the implant end, and in the second position the carrier pulls the head of the bolt inward away from the implant end. In an embodiment, the elongated body includes a straight segment, an angled segment, and an offset segment. The straight segment extends from the first end to the angled segment, the angled segment extends from the straight segment to the offset segment, and the offset segment extends from the angled segment to the second end. In an embodiment, a centerline of the first end is offset by a predetermined distance from a center of the slideable bolt. In an embodiment, the predetermined distance is 41 millimeters. In an embodiment, the elongated body includes a top surface having an elongated opening defined therein, a bottom surface opposite the top surface and having an elongated opening defined therein, one or more inner walls extending between the elongated opening defined in the top surface and the elongated opening defined in the bottom surface, and a first cavity defined by the one or more inner walls. The pivot end of the elongated lever is pivotally coupled to the elongated body within the first cavity, and the latch end of the elongated lever extends out of the first cavity through the elongated opening defined in the top surface. The leaf spring is positioned within the first cavity. When the elongated lever is in the second position the carrier pull