Bone Positioning And Cutting System And Method

What is this patent about?

’590 is related to the field of bone surgery, specifically addressing the correction of bunion deformities. The background highlights the challenges in achieving accurate bone cuts, especially in smaller bones like those in the foot. Traditional bunion correction often involves imprecise manual techniques, leading to suboptimal alignment and potential complications.

The underlying idea behind ’590 is to provide a guided and controlled method for bunion surgery. This involves using a specialized bone cutting guide with a joint plate that precisely aligns with the joint between the metatarsal and cuneiform bones. This guide then directs a cutting tool to accurately resect the metatarsal. A bone positioning device is used to adjust the alignment, and compression is applied using fixation pins. Finally, a bone connector secures the corrected position.

The claims of ’590 focus on a method for bunion surgery that combines guided bone cutting with controlled alignment and fixation. The key steps include aligning a bone cutting guide with the joint, using the guide to cut the metatarsal, adjusting the alignment with a bone positioning device, compressing the bones together using fixation pins, and securing the final position with a bone connector.

In practice, the surgeon first inserts the joint plate of the bone cutting guide into the joint space, ensuring accurate placement. The guide feature then allows for a precise cut of the metatarsal's leading edge. Following the cut, a bone positioning device is used to fine-tune the alignment between the metatarsal and cuneiform. The compression step, achieved by applying force to fixation pins, ensures close contact between the bones before final fixation.

This approach differs from traditional methods by providing a more controlled and predictable bone resection. The joint plate on the cutting guide ensures accurate placement relative to the joint, while the guide feature enables a precise cut. The use of fixation pins for compression is also a key differentiator, allowing for controlled force application during the healing process. The bone connector then provides long-term stability to the corrected alignment.