A61B17/1635

RETROGRADE CUTTING INSTRUMENT

A retrograde cutting instrument and method of retrograde drilling using such an instrument. A method of forming a socket includes providing a retrograde cutter, inserting the cutter into a joint with a blade of the cutter in a straight position, pivoting the blade to a non-straight flip position, locking the blade in the flip position, and retrograde drilling a socket using the blade in the flip position.

DEVICE AND METHOD FOR AUTOLOGOUS BONE GRAFT HARVESTING
20230363770 · 2023-11-16 ·

A device(100) and method(4100) for autologous bone graft harvesting simultaneously cuts a cross-section of a bone(900) longitudinally with a longitudinal drill assembly(102), and transversely with a saw assembly(126) during a bone(900) drilling to obtain a bone block for repairing and rebuilding diseased bones. The longitudinal drill assembly(102) and the saw assembly(126) simultaneously cut a cross-section of a bone(900). The device(100) is hand-controllable, drill motor powered, and spring-tensioned to selectively cut internally to the captured bone for internal bone harvesting. The longitudinal drill assembly(102) includes a drill shaft(114) extending perpendicular from a drill plate(112), having a flat surface(204) with a depth gauge(116). A module assembly(118) includes a module plate(120) disposed above the drill plate(112). Pins(302a,302b) extend from the upper face(308a) of the module plate(120) to engage ends of slots(400a,400b) to restrict over-rotation of saw plate(128). The saws (136a,136b) move between an open position(700a) for stowage, and a closed position(700b) while sawing the bone(900).

System and methods for harvesting and processing periosteum fibers

Periosteum harvesting and processing systems and methods enable rapid, efficient, and repeatable harvesting of periosteum tissue from human long bones and processing of the tissue into individual fibers for use in strengthening surgical allograft products. One harvesting and processing method involves providing a human long bone, securing the long bone between two rotating live centers, scraping, using one of a plurality of harvesting tools selected from a harvesting and processing kit, periosteum tissue from the long bone, executing a first wash cycle comprising a hydrogen peroxide wash, executing a second wash cycle comprising an isopropyl alcohol wash, executing a third wash cycle comprising a phosphate buffered saline wash, compressing the periosteum tissue to remove excess fluid, cryofracturing the tissue until a desired fiber size is achieved, and separating the periosteum tissue into individual periosteum fibers having the desired fiber size. Other embodiments are also disclosed.

Systems and methods for bone and tissue harvesting

Tools, devices and systems that include a generally cylindrical, hollow shaft, and a suction canister are provided with advantageous interconnectivity features and functions that enable ease of manufacturing, lowered manufacturing costs, and allow for a platform of different shaft embodiments and canister embodiments that may be manufactured in different combinations to form an array of unique instruments. The interconnectivity may be irreversible or reversible, and the connection features maintain an air tight seal between the components. Tools, devices and systems are also provided that include collection functionality that can be employed to manipulate the volume of tissue collected while using a tissue collection feature/function. This may be undertaken to restrict total volume of the collection chamber in a way that allows for continuous suction flow rate to take place while collecting the desired amount of tissue. Containing the tissue to a pre-set volume can enable a user to effectively ascertain the volume of tissue collected.

PARTIAL JOINT RESURFACING IMPLANT, INSTRUMENTATION, AND METHOD

An implant for repairing an articular cartilage defect site including an implant fixation portion with an upper segment and at least one bone interfacing segment and a top articulating portion with an articulating surface and an engagement surface. The upper segment includes a supporting plate with a first locking mechanism segment. The engagement surface includes a second locking mechanism segment. The first locking mechanism segment with at least two channels is structured to couple to the second locking mechanism segment with at least two protrusions. The at least one bone interfacing segment structured for insertion into the articular cartilage defect site. An implant including an implant fixation portion, a top articulating portion, and a locking mechanism with a first locking segment coupled to the upper segment and a second locking segment coupled to the at least one engagement surface and structured to couple to the first locking segment.

Harvesting cancellous bone and marrow from distal femur, proximal tibia, distal tibia, or calcaneus using bone press apparatus

Methods of harvesting cancellous bone and bone marrow include extracting loosened cancellous bone and bone marrow—including a liquid component thereof—to a collection container that has a first cup and a suction port to which a suction source is connected. After extraction, the suction source is disconnected and a lid of the collection container is removed and replaced with a lid having a plunger with a press head that is configured to filter the extracted liquid by depressing the plunger toward a bottom of the first cup. The filtered liquid is poured through a suction port into a second cup while depressing the plunger, thereby separating the liquid from a semi-solid mass of cancellous bone that remains. The bone is extracted through a cortical opening in the femur, tibia, or calcaneus, or from an intermedullary canal that is preferably formed by reaming of the tibia using an orthopedic reamer.

Removable biocompatible substrate filter for a reaming and collection device

A removable second stage biocompatible substrate filter including biocompatible implant material configured to trap second stage operative particulate matter, wherein the removable second stage biocompatible substrate filter is configured to combine with first stage operative particulate matter captured from irrigation fluid by a first stage filter, defining a combined product and the removable second stage biocompatible substrate filter is configured to be removable from a filter device container.

Securing a bone graft to the glenoid bone and implementations thereof
11432830 · 2022-09-06 · ·

A method of securing a bone graft to an anterior surface of a patient's glenoid bone, including drilling first and second bores through a posterior surface to an anterior surface of the glenoid bone; measuring a medial distance of the first bore; transferring the medial distance to a bone block; drilling a third bore based on the medial distance through the bone block to match the first bore; positioning the bone block in contacting relation with the anterior surface of the glenoid bone, and coaxially lining up the third bore with the first bore; positioning a first fastener through the third bore and the first bore; drilling a fourth bore in the bone block by positioning a drill bit through the second bore from the posterior side of the glenoid bone, and extending the drill bit from the first surface of the bone block to the second surface of the bone block; and positioning a second fastener through the fourth bore and the second bore.

Nondestructive autograft extracting device for autologous osteochondral transplantation

Systems and methods for harvesting tissue from a donor site include first and second conduits through which a flexible saw component is guided. Certain embodiments include a mechanism which facilitates insertion of a flexible cutting member component parallel to a transverse plane and slicing a graft parallel to the coronal plane to extract the graft.

CUTTING HEAD FOR TISSUE COLLECTION DEVICE
20220287693 · 2022-09-15 · ·

An instrument for collecting tissue from a body cavity includes a hollow tubular body. The tubular body has a tubular wall that extends between a proximal-most end and a distal-most end of the tubular body. The tubular wall surrounds a passage that extends to the distal end portion of the tubular body. The tubular body can be a non-bending shaft, or a shaft having an articulating section that allows a portion of the tubular body to articulate relative to the proximal end portion. The distal end portion includes a core drill with a cutting tip. The cutting tip defines a first aperture, a second aperture opposite the first aperture, and a web extending between the first aperture and the second aperture. The web tapers to a drill point at the distal-most end of the tubular body.