Abstract: The present disclosure provides methods for forming or enlarging holes in bone tissue and methods for fixing medical plates to bodies. The present disclosure also provides for products produced by the methods of the present disclosure and for apparatuses used to perform the methods of the present disclosure including but not limited to spring compressed retained blades and detachable blades.

Abstract: Implant delivery systems for delivering sheet-like implants include a delivery shaft, an implant expander, a sheath, and a sheet-like implant. In some embodiments, the delivery shaft has a proximal end and a distal end. The implant expander is mounted to the distal end of the delivery shaft. The implant expander includes a central portion and a plurality of leg portions radiating from the central portion. The implant expander is evertable between an unstressed configuration in which a distal surface of the implant expander defines a concave surface, and a first compact configuration in which the distal surface of the implant expander defines a convex surface. The implant expander has a first lateral extent when the implant expander is free to assume the unstressed configuration. The sheath defines a lumen having a lumen diameter. At least a portion of the delivery shaft is slidably disposed in the lumen.

Abstract: A tool bit (100) of an ultrasonic osteotome includes: an arbor (2); and an end portion (1) of the tool bit connected to a front end of the arbor (2). The end portion (1) of the tool bit has a spoon-like shape and has a toothed front edge. An ultrasonic osteotome including the tool bit is also provided.

Abstract: A surgical screw assembly including: a fastener including an elongate shaft having a proximal end and a distal end and a head at the proximal end. A tulip having a an internal bearing surface is provided. A distal end of the tulip has a bore therethrough defining the internal bearing surface. Locking enhancement features are configured to cooperate with the head, such that, in an unlocked configuration, the head is movable relative to the tulip; in a provisionally locked configuration, the locking enhancement features engage the head with a first polyaxial grip strength; and in a finally locked configuration, the locking enhancement features engage the head with a second polyaxial grip strength greater than the first polyaxial grip strength.

Abstract: An expandable spinal implant configured for positioning within the intervertebral space between adjacent vertebral bodies is disclosed. The spinal implant includes a first body, a second body, a ratchet, and a locking mechanism. The first and second bodies are pivotably affixed to each other on respective first ends thereof and are capable of movement relative to each other in a medial-lateral direction with respect to the adjacent vertebral bodies. The ratchet is pivotably supported within a slot defined in the first body and is capable of engaging the second body thereby permitting movement of the first and second body relative to each other in a first direction, but not in a second direction that is different than the first direction. A method of performing spinal surgery is also disclosed.

Abstract: An improved motorized burr instrument for operation on tissue at a desired surgical site surrounding by fluid, the motorized burr instrument being operable with a variable speed motor at a rotary drive coupler with a hub extending therefrom, an outer sheath housing a rotating member extending between the rotary drive coupler and a burr having a cutting edge with at least one radial projection joining a leading and a trailing edge and rotating said fluid through the outer sheath as the cutting edge is rotated.

Abstract: Systems, apparatus, and methods may be adapted for grafting tissue at a tissue site that may include an elongate housing and a plurality of elongate cutting members. The plurality of elongate cutting members may define a cutting surface at a distal end of the elongate housing. The cutting surface may be adapted to contract from a first diameter to a second diameter that is less than the first diameter. The contraction of the cutting surface from the first diameter to the second diameter may define a tapered profile between the first diameter and the second diameter suitable for obtaining a tapered graft.

Abstract: Disclosed are a tool bit of an ultrasonic osteotome and an ultrasonic osteotome including the same, the tool bit comprising: an arbour (2); and an end portion (1) of the tool bit connected to a front end of arbour (2), wherein the end portion (1) of the tool bit has a hook-like shape and includes a hook tip (11), a hook handle (13), as well as a hook-shaped interconnecting piece (12) which is interconnected between the hook tip (11) and the hook handle (13). The hook handle (13) is connected with the arbour (2), and the inner side edge of the hook-shaped interconnecting piece (12) is tooth-like. With this ultrasonic osteotome, the cutting efficiency is high and surgery time is short, therefore the labour intensity of medical workers is decreased. Moreover, accurate positioning can be realized in cutting process with no skidding, so the chance of success of surgery can be improved.

Abstract: A total hip femoral prosthesis provides a shortened neck and more proximal coating level. Additionally, a means for strengthening the neck may be incorporated to increase stress transfer to the native bone. A method for reducing potential impingement that results from a high neck resection level includes instrumentation for cutting chamfered surfaces into the bone surrounding the proximal end of the implant. Instrumentation and methods of creating chamfered cuts are disclosed.

Abstract: A medical drill bit comprises an accommodating slot disposed concavely on a main body of the medical drill bit, a separate board disposed in the accommodating slot to separate the accommodating slot into a first slot and a second slot, and a lid engaging with the separate board and covering the accommodating slot. The lid and the separate board do not rotate with the main body when the main body in rotation. The accommodating uses to fill with cooling liquid which able to be pumped out from the accommodating slot, and fresh cooling liquid is able to inject into the accommodating slot for cooling the drill bit in rotation.

Abstract: Disclosed is a medical motor drill having an angle adjusting function. The medical motor drill includes a main body, a shaft connected to the main body, a drill unit connected to the shaft so as to be bendable relative to the shaft, the drill unit including a motor configured to receive power from the main body and a drill blade configured to be rotated by the motor, a drive force transmission unit configured to bend the drill unit relative to the shaft, and an angle adjustment unit connected to the drive force transmission unit to adjust a bending degree of the drill unit. The medical motor drill has advantages of enabling drilling over a wide range in a state in which a drill manipulation position is fixed and of enabling adjustment in the angle of the drill unit that is located distant from a user manipulation position.

Abstract: A metatarsal fixation device is provided for fixation of osteotomy or fracture of a distal metatarsal metaphysis bone of the human foot and for fixation of an associated capsule to the metatarsal head. The device includes a metallic bone plate with a series of screw holes along an elongated portion of the plate and a combination of a singular screw hole and a resilient clamp on an end of the elongated portion. The resilient clamp has two arched resilient arms extending laterally outward from an end of the elongated portion. Each arm has a plurality of spikes on an inner surface thereof providing points of contact that compress and attach a metatarsal phalangeal joint capsule portion to the medial and/or lateral aspect of the metatarsal head, thereby facilitating realignment of the metatarsophalangeal joint and respective digit. The resilient arms are biased to grasp lateral sides of a metatarsal head and any associated capsule portion.

Abstract: A mixing and delivery device for osseous tissue and method of use is provided. A kit for use by a medical professional is also provided.

Abstract: Non-load-bearing, drug-eluting components that can be added to load bearing spinal implants.

Abstract: An orthopedic fixation assembly for connecting to a bone includes a fixation plate having a hole, an insert securable to the hole and a screw securable to the insert. The fixation plate includes a shoulder recessed from its upper surface and an aperture. The insert includes a base portion and a flange extending laterally from an upper end of the base portion. The insert defines an insert central axis extending in a direction generally perpendicular to the flange. The screw has a screw head and the base portion has an insert hole with machined internal threads for engaging the screw. The insert hole defines an insert hole central axis extending in a direction at an offset angle relative to the insert central axis. The aperture of the fixation plate is dimensioned to receive the base portion of the insert and the recessed shoulder is dimensioned to receive the flange.

Abstract: Methods and apparatus for treating bones, including, in one or more embodiments, a device for delivering a bone filler material comprising: a housing having a throughbore; a plunger comprising a shaft having external threads, wherein the plunger is configured for advancement through the throughbore of the housing; and a threaded receiving member configured to releasably engage the plunger. Methods for removing an instrument from a vertebral body comprising applying ultrasonic energy to the instrument, wherein a distal end of the instrument is disposed in a cavity in the vertebral body, wherein the cavity contains a filler material; and removing the instrument from the vertebral body.

Abstract: A fastener for attaching a sheet-like implant to tissue or bone. The fastener includes a first arm having a proximal end and a distal end, a second arm having a proximal end and a distal end, and a bridge extending therebetween. Each of the first and second arms include a trunk portion defining at least a portion thereof, the trunk portion having a cavity therein and an aperture through a wall thereof. A claw is disposed in the cavity which is moveable from a first delivery position to a second deployed position. A pull member engages each claw to move the claw from the delivery position to the deployed position.

Abstract: Intervertebral endoprosthesis discs suitable for surgical implantation between two vertebrae having and methods thereof. The prosthetic disc may have an endoprosthesis body including an anterior region and a posterior region designed to be positioned between a first vertebra and a second vertebra with a first and second movable insert positioned rotatably in anterior cavities and is rotatable to adjust the fasteners.

Abstract: In an exemplary embodiment, the present invention provides an orthopedic plate blocking assembly that can be used for the fixation or fastening of an orthopedic plate to bone tissue. In particular, the present invention, in one embodiment, provides an orthopedic plate having a plurality of cavities where each cavity is configured and dimensioned to receive a bone anchoring member. The orthopedic plate further provides a blocking mechanism having a plurality of blocking members that block the bone anchoring members to prevent the bone anchoring members from “backing out” of cavities once the bone anchoring members are finally seated in the cavities.

Abstract: A disposable modular patella protector and clamp is disclosed, providing the ability for a surgeon to shift the procedure sequence of the implantation of the patella from the end of a total knee replacement procedure to anytime during the procedure by providing a modular clamp that holds and protects the patella prosthesis and prepared patella. The clamp may be positioned in a manner in which it does not obstruct the patella or the prosthesis, allowing the surgeon to attend to other elements of the procedure while the bone cement is allowed to cure.