SeaSpine Holdings has filed a patent for an expandable orthopedic implant. The implant includes hinged arms that can be rotated from an initial position to a final position using an actuator. A bridging element connects the arms, and engagement between the bridging element and the arms is achieved through a double pin-in-slot mechanism. The implant allows for controlled expansion and contraction based on the rotation of the arms. GlobalData’s report on SeaSpine Holdings 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 SeaSpine Holdings, Customized implants was a key innovation area identified from patents. SeaSpine Holdings's grant share as of September 2023 was 58%. Grant share is based on the ratio of number of grants to total number of patents.

Expandable orthopedic implant with hinged arms and actuator

Source: United States Patent and Trademark Office (USPTO). Credit: SeaSpine Holdings Corporation

A recently filed patent (Publication Number: US20230240862A1) describes an expandable orthopedic implant. The implant consists of a base, two arms, an actuator, and a bridging element. The first arm is hingedly coupled to the base at one end, while the second arm is hingedly coupled to the base at the other end. The actuator, which has a threaded bolt, is rotatably coupled to the base and has two riders that can move along its length. The first arm is connected to the actuator through a first actuator linkage, and the second arm is connected to the actuator through a second actuator linkage. The bridging element is attached to the ends of both arms.

By rotating the actuator in one direction, the first arm and second arm rotate in the same direction, causing the bridging element to move away from the base. Rotating the actuator in the opposite direction causes the arms to rotate in the opposite direction, bringing the bridging element closer to the base. The implant can occupy different states, from an insertion state to a fully-expanded state, by rotating the actuator.

The patent also describes additional features of the implant. The first arm has a rear projection that extends beyond its hinge location, and a displaceable portion is engaged with this projection. Rotation of the first arm causes displacement of both the bridging element and the displaceable portion. The engagement between the bridging element and the arms is through a double pin-in-slot connection with non-parallel slots.

Overall, this expandable orthopedic implant offers a mechanism for controlled expansion and contraction. The actuator, arms, and bridging element work together to provide adjustable spacing between the base and the bridging element. The additional features, such as the rear projection and displaceable portion, enhance the functionality of the implant. This patent presents a novel design for an orthopedic implant that could potentially improve surgical procedures and patient outcomes.

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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