Abstract: A pivotal bone anchor assembly includes a shank having a head portion and an anchor portion for fixation to the bone of a patient, and a receiver comprising a base defining a lower portion of central bore and a pair of upright arms defining a channel for receiving an elongate rod. The assembly also includes a retaining structure with a central opening configured to capture and pivotally retain and support the head portion of the shank in the retaining structure, and which is slidably movable relative to the receiver so as to provide for increased articulated movement between the shank and the receiver prior to locking the assembly with the elongate rod and a closure. The assembly further includes an insert configured to engage the elongate rod and the head portion of the shank when in use, and to have an overlapping configuration with the retaining structure when the assembly is in the locked configuration.

Abstract: A device and methods for intervertebral spinal fusion of adjacent intervertebral bodies. An intervertebral spacer is positioned within a narrow disc space between adjacent intervertebral bodies of a patient. The spacer is arranged with upper and lower guides. The guides are adapted to simultaneously guide the deployment of upper and lower anchors of an anchoring device into their respective intervertebral bodies. The spacer is also adapted to lock the upper and lower anchors to the spacer in the deployed position.

Abstract: A bone cement mixing and dispensing system and method for mixing and delivering bone cement therefrom. The system has a mixing container for holding a bone cement mixture, the mixing container extending along an axial length and having opposed first and second ends, the first end comprising a downstream opening for dispensing the bone cement downstream from the mixing container; a mixing element movably disposed within the mixing container; and a plunger comprising a piston movably disposed within the mixing container. In this system. with a first coupling, the mixing element moves by assistance of a motor along the axial length of the mixing container without translation of the plunger to mix the bone cement. In this system. with a second coupling, the mixing element and plunger are driven together along the axial length of the mixing container.

Abstract: A biomedical implant (16, 18) is formed from magnesium (Mg) single crystal (10). The biomedical implant (16, 18) may be biodegradable. The biomedical implant (16, 18) may be post treated to control the mechanical properties and/or corrosion rate thereof said Mg single crystal (10) without changing the chemical composition thereof. A method of making a Mg single crystal (10) for biomedical applications includes filling a single crucible (12) with more than one chamber with polycrystalline Mg, melting at least a portion of said polycrystalline Mg, and forming more than one Mg single crystal (10) using directional solidification.

Abstract: A surgical device for cutting bone or tissue in a patient can include a cutting blade having a rigid portion, a flexible portion, and a liner to provide a seal to the flexible portion. The blade has an outer member and an inner member disposed within a lumen of the outer member. The inner member has a rigid portion and a flexible portion. The liner can be disposed within a lumen of the inner member and can engage the rigid portion such as to retain the liner adjacent to the flexible portion of the inner member.

Abstract: The present invention relates to an implant, to an instrument for implantation of the latter and to a method for manufacturing this implant which includes an elongated body (10) between a free end and a head (18) along a longitudinal axis on the one hand and turns (12) of at least one threading on at least one portion of said body (10) in proximity to the free end, along the longitudinal axis on the other hand, characterized in that the body (10) includes a longitudinal internal conduit (11) in at least one portion to along the longitudinal axis, obtained by at least one first central machining operation parallel to the longitudinal axis and at least one second machining operation in a so-called transverse plane, not parallel to the longitudinal axis and crossing the wall of the body (10) as far as the longitudinal internal conduit (11) by making windows (15) communicating between said longitudinal internal conduit (11) and the outside of the body (10).

Abstract: A kit includes a distractor, a plurality of trial elements, and at least one sensor. The distractor is configured to separate a first bone from a second bone by adjusting the distance between a first member and a second member, and is configured to receive at least one sensor in the first portion. Each of the trial elements corresponds to one of a plurality of surgical implants, is configured to be temporarily coupled to the second bone so as to evaluate suitability of the corresponding one of the plurality of surgical implants for implantation, and is configured to receive at least one sensor. The at least one sensor is configured to be received in the distractor or one of the trial elements, and is configured to record a magnitude of a force, a direction of application of a force, a pressure mapping, or a location of application of a force.

Abstract: A device for repair meniscus tears utilizing transfer cannulas that are pulled or kedged through the meniscus tear by a pulling element. The transfer cannulas are positioned via sliding guide to prevent a shear force acting on the meniscus.

Abstract: Methods and apparatus for planning and/or carrying out a total knee replacement surgical procedure on a knee of a leg of a patient are described. Anatomical data for the leg of the patient is obtained, which allows the femoral mechanical axis, the tibial mechanical axis and the joint line of the knee to be determined. A planned proximal tibial cut angle and a planned distal femoral cut angle are determined. A total knee replacement procedure is carried out on the knee of the patient, wherein a distal femoral cut is made using the planned distal femoral cut angle and a proximal tibial cut is made using the planned proximal tibial cut angle.

Abstract: An irrigation system for a surgical instrument includes an irrigation tube arranged to convey an irrigation fluid and an irrigation clip structurally arranged to receive a portion of the irrigation tube. The irrigation clip includes a proximal portion, a distal portion, a body portion, and an arm portion. The arm portion is structurally configured to selectively attach the irrigation clip to the surgical instrument and to bias the irrigation clip toward the surgical instrument with a biasing force. The irrigation clip includes a tube locking portion structurally arranged to cooperate with the surgical instrument to engage the outer surface portion of the irrigation tube to inhibit rotation and axial displacement of the irrigation tube relative to the irrigation clip in response to the biasing force.

Abstract: An exemplary trial component is configured to be attached to a resected bone having a resection surface, and includes a body portion and a sliding fastening mechanism movably coupled to the body portion. The body portion has an articular surface, a bone-facing surface, and at least one drill guide extending through the articular surface and the bone-facing surface. The sliding fastening mechanism includes at least one post extending beyond the bone-facing surface, and the post is operable to engage the resection surface to retain the position of the sliding fastening mechanism relative to the bone. When attached to the bone, the trial component is structured to selectively retain the position of the body portion relative to the bone, and to selectively permit adjustment of the position of the body portion relative to the bone.

Abstract: Powered drivers (10) for inserting an intraosseous device (160) into a bone and associated bone marrow are disclosed. Some of the powered drivers (10) may include a housing (12) having a distal end (14) and a proximal end (16); a motor (18) disposed in the housing (12); a driveshaft (34) extending outward from the distal end (14) of the housing in a direction away from the proximal end (16); a gearbox (32) coupled to the motor (18) and to the driveshaft (34) such that activation of the motor (18) causes the driveshaft (34) to rotate; and a power source (40) configured to power the motor (18). A guard member (50) may be pivotably connected to the housing (12) and movable between a protective position and a non-protective position. The guard member (50) may be configured to cover the intraosseous (10) needle assembly in the protective position and to expose the intraosseous (10) needle assembly in the non-protective position.

Abstract: An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.

Abstract: A bone screw assembly includes a first body, a second body, and a thread locking assembly that may couple the first body with the second body. The first body includes a proximal portion, a distal portion that may pierce bone in response to rotation of the first body about the longitudinal axis, and a first threaded section that may engage bone. The second body defines a through hole that may receive the distal portion of the first body. The thread locking assembly includes a first thread locking section associated with the proximal portion of the first body, and a second thread locking section associated with the through hole of the second body. Either the first threaded locking section or the second threaded locking section deforms the other in response to rotation of the first threaded locking section relative to the second threaded locking section.

Abstract: Guiding devices and methods are disclosed that comprise a detachable guide pin. The guiding devices may be driven into a bone to place the detachable guide pin within the bone. Once placed in the bone, the guide pin can be used to guide a surgical device into the bone.

Abstract: A sternal elevator apparatus is disclosed. The sternal elevator may include a panel, a support beam traversing the panel, and a post coupled to a proximal end of the panel. The apparatus may also include an indicator handle coupled to the sternal elevator, an actuator drive pivotably coupled to the indicator handle, and a housing movably coupled to the actuator drive. The sternal elevator apparatus may have an actuator drive incorporating a linear rack. The housing further may include a cylindrical gear where the cylindrical gear is engaged with the linear rack.

Abstract: A surgical system includes a disposable force sensor pod that includes a load cell and a mounting feature. The surgical system also includes a computing system configured to be placed in electronic communication with the disposable force sensor pod and receive a force measurement from the disposable force sensor pod. The disposable force sensor pod is configured to be removeably coupled to a distraction device using the mounting feature.

Abstract: Hip arthroplasty trial systems and associated medical devices, methods, and kits are described that can be utilized in situ to complete a femoral head trial. An example embodiment of a hip arthroplasty trial system includes a medical device and a femoral stem. The medical device has a head member, a spacer, a shaft, and a locking member. The spacer is disposed within the head member and is moveable from a first position to a second position. The shaft is disposed within the head member and contacts the femoral stem. The shaft is moveable from a first position to a second position. Movement of the shaft from the first position to the second position moves the spacer from its first position to its second position. The locking member is disposed within the head member and releasably attaches the shaft to the head member.

Abstract: A system for performing minimally invasive procedures in a working space within a body lumen of a patient including a flexible catheter configured to receive a working instrument therethrough. The flexible catheter has a working space expanding system positioned at the distal portion, the working space expanding system including first and second flexible elements movable from a non-expanded insertion position to an expanded position forming an expanded region to expand the working space within the body. The first and second flexible elements are connected at a distal region by a coupling structure. A stabilizing member stabilizes the distal portion of the flexible catheter.

Abstract: In a method of forming an access route to the bile duct, a needle is introduced into a duodenum, and the introduced needle is pierced into an oral side projection of a duodenal papilla, which is located at an oral position than an opening of the duodenal papilla. The tip of the pierced needle is made to reach the inside of the bile duct to form a tunnel communicating the duodenum and the bile duct, and a treatment device is inserted into the formed tunnel.