Adjustable devices for treating arthritis of the knee

US11871971B2 · kind B2 · utility

Assignee

• NUVASIVE SPECIALIZED ORTHOPEDICS, INC. · US

Inventors

• David Skinlo · North Logan, US
• Thomas B. Buford · Laguna Beach, US
• Ephraim Akyuz · Logan, US
• Thomas Weisel · Ventura, US
• Roger Pisarnwongs · Valencia, US
• Adam G. Beckett · Mission Viejo, US
• Jeffrey Lee Gilbert · Lake Forest, US
• Frank Yan Liu · Irvine, US
• Urs Weber · Evilard, CH
• Edmund J. Roschak · Mission Viejo, US
• Blair Walker · Timmins, CA
• Scott Pool · Laguna Hills, US
• Mark Thomas Dahl · Afton, US

Key dates

• Filing date: Dec 7, 2021
• Grant date: Jan 16, 2024
• Expiry date: Mar 8, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2/389
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method of changing a bone angle includes creating an osteotomy between a first portion and a second portion of a tibia of a patient; creating a cavity in the tibia by removing bone material along an axis extending in a substantially longitudinal direction from a first point at the tibial plateau to a second point; placing a non-invasively adjustable implant into the cavity, the non-invasively adjustable implant comprising an adjustable actuator having an outer housing and an inner shaft, telescopically disposed in the outer housing, and a driving element configured to be remotely operable to telescopically displace the inner shaft in relation to the outer housing; coupling one of the outer housing or the inner shaft to the first portion of the tibia; coupling the other of the outer housing or the inner shaft to the second portion of the tibia; and remotely operating the driving element to telescopically displace the inner shaft in relation to the outer housing, thus changing an angle between the first portion and second portion of the tibia.