Class / Patent application number | Description | Number of patent applications / Date published |
606065000 | Femoral screw | 22 |
20080262498 | Double locked hip implant - A novel apparatus for treating fractures of the femur is disclosed. The assembly includes two hip implants positioned into the head and neck of the femur. The hip implants solidly lock into each other, while retaining the possibility of being slided together through either the oblique bore of an intramedullary nail or through the barrel of a side plate. This novel apparatus allows the surgeon to achieve sliding rotational control of the femoral head, while avoiding independent rotation of each screw around its own axis. This novel apparatus also avoids independent sliding of each screw. | 10-23-2008 |
20080269752 | Hip fracture device with barrel and end cap for load control - A hip fracture device providing distance limited dynamization, load controlled dynamization and combinations of both dynamization methods by varying components. The hip fracture device includes a plate having a head portion and a shaft portion. A barrel projects from the head portion of the plate and a screw is inserted in the barrel. A friction pin is slidably connected with the screw, and an end cap is fixed to the head portion of the plate. The friction pin is fixedly connected with the end cap. The screw slides over the friction pin and toward the end cap when a load is applied on the fracture device. The load required for further sliding of the screw over the friction pin increases incrementally as the screw slides towards the end cap. | 10-30-2008 |
20080275447 | Assembly for minimally invasive reduction of hip fracture - An assembly includes a holder having a first arm and a second arm, the holder being movable between a first configuration and a second configuration. The assembly further includes an actuator movable in relation to the holder between a first position and a second position. Movement of the actuator from the first position to the second position causes movement of the holder from the first configuration to the second configuration. The first arm has a first bone plate contact portion, and the second arm has a second bone plate contact portion. The first bone plate contact portion and the second bone plate contact portion are separated by a first distance when the holder is in the first configuration. The first bone plate contact portion and the second bone plate contact portion are separated by a second distance when the holder is in the second configuration. The first distance is greater than the second distance. The assembly further includes a bone plate having a plurality of fastener openings defined therein. The holder retains the bone plate between the first bone plate contact portion of the first arm and second bone plate contact portion of the second arm when the holder is positioned in the second configuration. | 11-06-2008 |
20090069813 | METHOD AND APPARATUS FOR BONE FIXATION WITH SECONDARY COMPRESSION - Disclosed is a fracture fixation device, for reducing and compressing fractures in a bone. The fixation device includes an elongate body comprising a first portion and a second portion that are detachably coupled to each other. The first portion defines a helical cancellous bone anchor and the second portion defines a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device and is rotationally locked to the first portion. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. The second portion is then detached from the first portion. | 03-12-2009 |
20090326534 | Fracture Fixation Apparatus - An apparatus for treating a bone fracture comprises an intramedullary rod extending through a first bone segment of a fractured bone. A lag screw assembly extends through a first transverse aperture in the rod, while a control member extends through a second transverse aperture longitudinally offset from the first aperture. The lag screw assembly includes a lag screw engaged to the second bone segment and a locking sleeve mounted over a proximal portion of the lag screw. The locking sleeve defines a groove aligned with the second aperture. The control member includes a distal portion penetrating the bone segments, an intermediate portion configured to engage the second aperture and an enlarged head configured to slidably engage the groove. The groove includes a terminus that contacts the head of the control member after a predetermined amount of lateral migration of the lag screw as the fracture collapses. | 12-31-2009 |
20100121327 | ORTHOPEDIC SCREW - An orthopedic screw that may be used to align and stabilize a bone fracture and a method for using the same. | 05-13-2010 |
20100174285 | Fixation Of Femoral Neck Fractures - In one embodiment of the invention, a device for femoral neck fracture fixation includes a base, a first conduit that slidably receives a first screw, a second conduit that slidably receives a second screw, and a third conduit that slidably receives a third screw. The first conduit is spaced from the second conduit to allow the first screw to couple to the femoral neck inferior cortex and to further allow the second screw and third screw to each couple to the femoral head and reduce angular instability of the femoral neck fracture. | 07-08-2010 |
20110118741 | APPARATUS FOR PREVENTING DISTAL MIGRATION OF LAG SCREW FOR HIP FRACTURE SURGERY - A device for preventing distal migration of a LAG screw used for hip joint fracture surgery is disclosed. A locking support ( | 05-19-2011 |
20130116694 | TELESCOPING SCREW FOR FEMORAL NECK FRACTURES - A bone fixation system includes a bone fixation device, including a first element having a first channel extending therethrough and a second element including a proximal portion sized and shaped to be received within the first channel such that the longitudinal axes of the first and second elements are substantially coaxial and a distal portion including a bone engaging structure, a proximal end of the second element slidably locked within the first channel such that the first and second elements are longitudinally movable relative to one another between a permitted range of motion. The system also includes a driving tool, including an outer sleeve and an inner sleeve slidably received therethrough, a distal end of the outer sleeve configured to engage the proximal end of the first element to prevent relative rotation therebetween, a distal end of the inner sleeve configured to engage the proximal end of the second element. | 05-09-2013 |
20130150852 | POLYAXIAL PEDICLE SCREW - A polyaxial bone anchor including a housing, a bone screw, and a retainer for pivotably coupling the head of the bone screw to the housing. The retainer is positioned into the bore of the housing and includes a plurality of alternating tabs and slots circumferentially arranged to define a cavity for receiving the head portion of the bone screw therein. The retainer is axially moveable in the housing from a first position in which the head portion is not passable through the lower opening of the retainer to a second position in which the head portion is passable through the lower opening of the retainer. | 06-13-2013 |
20140031824 | POROUS TANTALUM ROD - A porous tantalum rod is provided, which is a medical implantation used for treating collapsed articular surface of the femoral head or necrosis of the femoral head in phase I or phase II. The implantation includes a fastening structure formed on one end of the porous tantalum rod used for connecting with the osseous tissues and a through hole formed on the center of the porous tantalum rod. The porous tantalum rod is made of the porous tantalum material, which is produced by foam impregnation and had a foam structure with three-dimensional interconnecting pores, wherein the foam structure has a foam skeleton, tantalum particles located on the foam skeleton, and multiple sintering neck structures formed between the tantalum particles. | 01-30-2014 |
20140214034 | CANNULATED TELESCOPIC FEMORAL NECK SCREW DEVICE AND RELATED FIXATION METHOD - A screw assembly and method developed for the fixation of femoral neck fractures without interruption of the growth process is disclosed. The screw assembly includes a male component that is attached to the lateral cortex and a female component that is attached at the proximal epiphysis. Anchorage of the components is achieved through screw-type fixation. The screw has a built-in feature that allows for free extension of its length as the fracture site or the slipped capital physeal plate heals and normal patient growth continues. Stable fixation and rotational stability are created at the fracture (slip) site while avoiding compression forces, thus avoiding premature closure of the physeal plate. | 07-31-2014 |
20140214035 | BONE NAIL WITH SMOOTH TRAILING END - A bone nail has a shaft with a leading section and a trailing section, wherein the trailing section includes an end surface having at least one depressed portion and at least one elevated portion. The transition between one of the depressed portions and the adjacent elevated portion is smooth. The end surface is formed so as to transmit rotational forces as well as translational forces from a medical device to the shaft of the bone nail, when the medical device is coupled at the end surface to the trailing section of the bone nail. | 07-31-2014 |
20140343552 | BONE SCREW SYSTEM AND METHOD - An improved bone screw is disclosed which includes a shaft with distal portion having a threaded surface thereon, a sleeve having an opening which receives the shaft such that the shaft is able to move within the sleeve without moving the sleeve. A compressive device may be incorporated between the sleeve and the proximal portion of the shaft such that the compressive device forces the shaft and sleeve towards at least a portion each other, thereby maintaining the compressive load at the union of the fracture. As additional compression is exerted on the load from weight bearing, the force may be reduced, but the head of the sleeve is still substantially maintained against the lateral cortex. | 11-20-2014 |
20150366591 | Cannulated Telescopic Femoral Neck Screw Device and Related Fixation Method - A screw assembly and method developed for the fixation of femoral neck fractures without interruption of the growth process is disclosed. The screw assembly includes a male component that is attached to the lateral cortex and a female component that is attached at the proximal epiphysis. Anchorage of the components is achieved through screw-type fixation. The screw has a built-in feature that allows for free extension of its length as the fracture site or the slipped capital physeal plate heals and normal patient growth continues. Stable fixation and rotational stability are created at the fracture (slip) site while avoiding compression forces, thus avoiding premature closure of the physeal plate. | 12-24-2015 |
606066000 | Anti-rotation or keeper means | 7 |
20090264885 | Orthopaedic trauma hip screw assembly - A fracture reduction assembly and method for insertion of the assembly through a surgical site in one embodiment includes a base portion including a bone contacting surface and an upper surface, a barrel with a first end portion connected to the bone contacting surface, the base portion and the barrel defining a bore extending through the barrel and the base portion and opening at the upper surface of the base portion, a screw portion including a shaft with a first diameter sized to fit within the bore and a threaded portion with a second diameter sized to not fit within the bore, wherein at least a portion of the shaft is positioned within the bore, and a retainer coupled with the shaft and having a third diameter sized to fit within a first portion of the bore but not within a second portion of the bore. | 10-22-2009 |
20130317502 | FEMORAL NECK FRACTURE IMPLANT - A bone fixation system comprises an elongated implant shaft extending from a proximal end to a distal end along a central longitudinal axis and including a first channel extending from the proximal end to a side opening formed in a side wall of the implant shaft along a first channel axis. The bone fixation system further comprises a bone plate having a first plate portion and a second plate portion, the first plate portion having a first opening extending therethrough along a first opening axis and the second plate portion having a second opening extending therethrough along a second opening axis, the second opening being configured to receive the implant shaft therethrough to permit insertion thereof into a head of a bone. | 11-28-2013 |
20130317503 | BONE FIXATION SCREW AND METHOD - A screw device for compressing and fixing together a proximal and distal bone part along a surgical axis comprising: a bone screw portion comprising an elongate body inscribed with bone screw threads at a leading end of an outer surface of said body; an elongate tubular torque stabilizer portion for spanning said bone parts and comprising one or more torsion stops to engage each bone part to limit rotational movement between the bone parts and a translation stop on said torque stabilizer to seat against a portion of the proximal bone to limit translation of said torque stabilizer portion along the surgical axis; and a compressor lock portion engaging the bone screw portion and torque stabilizer portion to draw said bone screw portion proximally along the surgical axis toward said translation stop therein compressing said one parts together. | 11-28-2013 |
20140094803 | FEMORAL NECK FRACTURE IMPLANT - A device for implanting a bone fixation system comprises an insertion instrument extending from a proximal end to a distal end, the distal end having an engagement portion for removably engaging a proximal end of a bone plate, the insertion instrument having an elongated channel extending therethrough to permit insertion of a first protection sleeve therethrough, wherein a longitudinal axis of the elongated channel is coaxial with a longitudinal axis of a first opening extending through the bone plate and a first protection sleeve insertable into the elongated channel and guiding insertion of an anti-rotation screw therethrough and through the bone plate, a longitudinal axis of the first protection sleeve being angled with respect to the longitudinal axis of the elongated channel. | 04-03-2014 |
20140296855 | Bone end (epiphysis) fracture fixation device and method of use - A bone end (epiphysis) fracture device including a rotatable fixation plate having a guide pin aperture and a plurality of fixation screw apertures formed therethrough. The guide pin aperture is used by a surgeon to position the fixation plate so that one or more fixation screw apertures are properly positioned to receive fixation screws inserted by the surgeon for repairing a bone end fracture. In another embodiment, the fracture fixation device also includes a side plate to which the fixation plate is rotatably attached. This embodiment further includes one or more side plate apertures formed through an elongate extension, whereby the fixation device may also be attached to the bone for which an end fracture is being repaired. A lock screw is provided in this embodiment for locking the position of the fixation plate with respect to the side plate. | 10-02-2014 |
20140378974 | BONE FIXATION DEVICE - A bone fixation device for repairing a fracture of the proximal femur is disclosed. It includes a jack tube, a compression screw and a nail. The jack tube is an elongated tubular member having a base plate and a side wall defining central passageway. The base plate is arranged to be secured to the femur by screws. The side wall of jack tube includes plural longitudinally extending slots. The nail is a tubular member having plural linear blades located in respective slots in the jack tube and plural spikes extending out of the distal end of the nail. The compression screw is arranged to be disposed within the nail to form a slidable unit and has internal threads to engage threads in the jack tube so that rotation of the compression screw slides the nail down the jack tube, with the blades and spikes digging into the surrounding bone. | 12-25-2014 |
20160128731 | OSTEOSYNTHESIS DEVICE WITH CERVICO-CEPHALIC SCREW - The invention relates to an osteosynthesis device. | 05-12-2016 |