US 2024/0197487 A1Published application

Connection mechanisms for use with orthopedic instruments

AssigneesSmith & Nephew, Inc., Smith & Nephew Orthopaedics AG, Smith & Nephew Asia Pacific Pte. Limited

InventorsAaron N. Little, Jeffrey N. Yeager, Tom J. Francis, Jason S. Jordan, Tedd Dixon

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Abstract

Orthopedic systems, methods, and instrumentation for preforming knee arthroplasty. In some embodiments, the systems, methods, and instruments utilized improved quick connect mechanisms such as, for example, snap-fit connectors, to facilitate easier assembly and disassembly of the various components. For example, various connection mechanisms for coupling a tibial base trial to a guide (e.g., a fin punch guide), and/or for coupling the guide (e.g., fin punch guide) to a punch. In use, the systems, methods, and instruments provide an improved workflow for facilitating knee arthroplasty surgery.

Claims16

Dependent claims

An orthopedic knee system comprising:

a tibial base trial including an inferior surface arranged and configured to contact a resected tibia, a superior surface opposite the inferior surface, and at least one first connector;
a fin punch guide including an inferior surface arranged and configured to contact the superior surface of the tibial base trial, a superior surface opposite the inferior surface, at least one second connector arranged and configured to couple with the at least one first connector, and at least one third connector;
and
a fin punch including at least one fourth connector arranged and configured to couple with the at least one third connector;
wherein at least one of the first connector and the second connector includes a male mating feature, and the other one of the first connector and the second connector includes a female mating feature;
and
wherein at least one of the third connector and the fourth connector includes a male mating feature, and the other one of the third connector and the fourth connector includes a female mating feature.

4 more elements

A method of performing knee arthroplasty surgery, the method comprising:

placing a tibia base trial onto a resected tibia;
coupling a fin punch guide to the tibia base trial via a first snap-fit connection between the tibia base trial and the fin punch guide, and via an end portion of a tab associated with the fin punch guide contacting a surface formed in a recess of the tibia base trial;
coupling a fin punch to the fin punch guide via a second snap-fit connection between the fin punch and the fin punch guide, at least a portion of the fin punch extending through a passageway formed in the fin punch guide and the tibia base trial and into the patient's resected tibia, wherein coupling the fin punch to the fin punch guide further includes a projection associated with the fin punch contacting the tab to move the tab from a first position to a second position to release the surface formed in the recess;
and
removing the fin punch and the fin punch guide from the tibia base trial.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/513,030Filed 17 Nov 2023
Priority: 15 Dec 2022
Published: 20 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

A61F 2/389
For elbows or knees: tibial components
A61B 17/1604
Instruments for performing osteoclasis; Drills or chisels for bones; Trepans: chisels; Rongeurs; Punches; Stamps
A61B 17/1764
Specially adapted for particular parts of the body: for the knee
A61F 2/4684
Special tools for implanting artificial joints: trial or dummy prostheses

Family

Application63/432,793Us provisional application · filed 15 Dec 2022
US 12,661,231 B2Related patent
US 2024/0197487 A1This patent

From the US filing history. Foreign family members aren’t listed.

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