Otto Bock HealthCare has been granted a patent for an orthopedic joint for a prosthesis. The joint includes a rotation hydraulic unit with a pivot piston, flexion and extension chambers, and a pretensioning device directly coupled to the pivot piston. This innovation allows for improved support and movement in prosthetic joints. GlobalData’s report on Otto Bock HealthCare gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Otto Bock HealthCare, was a key innovation area identified from patents. Otto Bock HealthCare's grant share as of February 2024 was 55%. Grant share is based on the ratio of number of grants to total number of patents.

Orthopedic joint with rotation hydraulics and pretensioning device

Source: United States Patent and Trademark Office (USPTO). Credit: Otto Bock HealthCare GmbH

A recently granted patent (Publication Number: US11911296B2) discloses an innovative orthopedic joint design featuring a rotation hydraulics unit. The joint comprises an upper part and a lower part pivotally mounted on the upper part, allowing movement about a pivot axis. The rotation hydraulics unit includes a housing with a chamber, a pivot piston dividing the chamber into flexion and extension chambers, and a pretensioning device aiding the pivoting movement of the upper part. The pretensioning device consists of a support and a slide piece, with the support directly coupled to the pivot piston and positioned within a hydraulic fluid.

Furthermore, the patent details various aspects of the orthopedic joint, such as the pivotable mounting of the support in or at the pivot piston, stability against buckling, and the transmission of forces between the slide piece and the pivot piston. The design also includes features like a spring for the pretensioning device, a unique S-shaped contour for the support, and the positioning of the coupling point relative to the pivot axis. Additionally, the joint is suitable for use in prostheses or orthoses, serving as a prosthetic or orthotic joint. The incorporation of a throttle in the hydraulic channel and the presence of recesses and passages for hydraulic fluid further enhance the functionality and versatility of this orthopedic joint.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.