Patent application number | Description | Published |
20120245640 | POLYAXIAL PEDICLE SCREW AND FIXATION SYSTEM KIT COMPRISING THE SCREW - A polyaxial pedicle screw may include a receiving head having a transversal U-shaped passage, and a shank having a threaded portion external to the receiving head, and a bulging end rotatable housed within the receiving head. The polyaxial pedicle screw may include a locking insert housed within the receiving head and matable with the bulging end, for locking it into position, and a set-screw engaged in the distal aperture for locking a connecting rod received within the transversal U-shaped passage. The receiving head of the polyaxial screw may include a lateral aperture, the lateral aperture exposing a contact surface of the locking insert in such a way that external pressing component can act on the contact surface to maintain the locking insert into its locking position. | 09-27-2012 |
20120277810 | INSTRUMENT FOR POSITIONING AN INTERVERTEBRAL IMPLANT FOR THE FUSION BETWEEN TWO VERTEBRAL BODIES OF A VERTEBRAL COLUMN - An instrument positions an intervertebral implant for the fusion between two vertebral bodies of a vertebral column. The instrument may include a handle having a proximal and a distal end, a locking shaft extended from the distal end of the handle, and a grasping head at the distal end of the shaft. The locking shaft may be cannulated, and a stem may be hosted inside the cannulated shaft passing through the handle. The stem may be free to rotate with respect to the locking shaft, or vice versa, while the grasping head may be formed at the distal end of the stem with a couple of prongs or clamps toward the other according to an angular relative rotation of the stem with respect to the locking shaft. The instrument may allow the surgeon to grip a corresponding implant with a simple rotation movement of his hand. | 11-01-2012 |
20120277869 | INTERVERTEBRAL IMPLANT FOR THE FUSION BETWEEN TWO VERTEBRAL BODIES OF A VERTEBRAL COLUMN AND CORRESPONDING POSITIONING INSTRUMENT - An intervertebral implant for the fusion between two vertebral bodies of a vertebral column may include a body having two opposite surfaces and holes or cavities for filling purposes during bone growth, and an engagement portion for receiving a gripping end of a positioning instrument. The engagement portion may be shaped as a splined shaft accessible through an opening of the body. | 11-01-2012 |
20130218276 | INTERVERTEBRAL IMPLANT WITH IMPROVED FASTENING SYSTEM FOR THE FIXING PLATE - An Intervertebral implant ( | 08-22-2013 |
20140066718 | SURGICAL DEVICE FOR MINIMALLY INVASIVE SPINAL FUSION AND SURGICAL SYSTEM COMPRISING THE SAME - A surgical device is disclosed which may advantageously perform the functions of both a retractor and a distractor. The device has two retractor blades facing each other and held in a common frame, the retractor blades are insertable into a surgical incision in a patient and moveable away from each other along a main axis (x) so as to widen the surgical incision; and a connecting pin attached at a distal end of each retractor blade. Each connecting pin is attachable to a pedicle screw anchored to respective vertebrae of the patient, so that moving away the two retractor blades along the main axis (x) determines a distraction of the vertebrae. | 03-06-2014 |
Patent application number | Description | Published |
20090198234 | Telescopic strut for an external fixator - A telescopic strut for use with an external fixator includes a tube and a rod, especially a threaded rod being in threaded engagement with the tube. The tube comprises at least one hole for accommodating a ball, the ball having the spherical shape for engagement with the threaded rod. A sleeve is provided on the portion of the tube comprising the hole. The sleeve comprises a non-spherical inner cross-section. The greater diameter of the sleeve has a dimension which is at least the sum of the outer diameter of the threaded rod plus the diameter of an accommodating ball for allowing direct axial movement of the threaded rod against the tube in such a rotational position of the sleeve. The lesser diameter has a dimension to place the ball within the threaded rod for allowing a rotational movement of the threaded rod against the tube. | 08-06-2009 |
20090198235 | Strut joint for an external fixator - A ball joint for use with an external fixator has a sleeve in engagement with a rod of a strut for the external fixator. A ring insert and a blocking element are provided, having a combined circumferential surface being able to be introduced into a hole of a ring of an external fixator. The ring insert and blocking element have complementary wedge surfaces allowing a relative radial displacement therebetween to enlarge the diameter of the combined circumferential surface for blocking the ball joint inside the hole. Additionally the sleeve comprises a spherical hollow ball portion with concentrical inner and outer spherical portions, wherein the outer spherical portion engages a complementary spherical socket of the blocking element and wherein the inner spherical portion is engaged by a ball nut. A connection element extends through the sleeve, blocking element and ring insert, wherein a radial displacement and axial displacement of the ring insert and blocking element are activated by the connection element. | 08-06-2009 |
20090198236 | Clamping pin - A clamping pin is intended to be inserted into and held in an opening of a medical device. The clamping pin comprises a screw having a longitudinal axis, a first clamping element having a surface inclined to the longitudinal axis and provides a first part of a clamping section. A second clamping element has a surface inclined to the longitudinal axis and provides a second part of the clamping section which is complementary to the opening in the medical device. The inclined surfaces of the first and second clamping elements are in contact. A screw extends at least partly through both the first and second clamping elements. The screw engages in one of the clamping elements such that the axial distance between the two clamping elements and the diameter of the clamping section that can come in contact with a surface of the opening in the medical device will be changed upon actuation of the screw. | 08-06-2009 |
20090198292 | Wire fixation device - A wire fixation device for fixing a tensioned wire or a pin to a medical device has a wire post having a head portion with an opening having a predetermined longitudinal axis for reception of a wire or pin. The wire post has a neck portion for being in engagement with an opening of the medical device. A locking element is adapted to be introduced into opening having an opening with inclined sections that are inclined to the longitudinal axis. A clamping cone abuts on an abutment element. The clamping cone has a clamping opening to accommodate a wire and has inclined outer surfaces that are inclined to the longitudinal axis and which are encompassed with the conical section of the locking element. Upon an axial displacement of the locking element relative to the clamping cone a radial force is exerted onto the clamping cone leading to a reduction of the diameter of the clamping opening such that if a wire or a pin is received in the clamping opening a radial force results onto the wire or the pin. | 08-06-2009 |
20090264882 | External fixation system - An orthopedic fixation ring for an external fixator has a ring or a ring-segment extending around a center axis. The ring comprises a first surface running perpendicular to the center axis, a second surface which is parallel to the first surface, and a plurality of spaced apart through openings running parallel to the center axis and extending through the fixation plate. The fixation plate has at least a third surface which is parallel to the first surface spaced outwardly thereof with respect to the center axis. A further set of through openings extends from the first surface to the third surface. A fourth surface may be provided which is axially displaced from the second surface with respect to the center axis. The ring preferably is circular or part-circular and is molded from carbon fiber reinforced PEEK. | 10-22-2009 |
20110251648 | IMPLANT SYSTEM FOR STABILIZING BONES - The invention relates to an implant system having at least one component ( | 10-13-2011 |
20110257689 | BONE SCREW - The invention relates to a bone screw having a screw shaft ( | 10-20-2011 |
20110288549 | EXTERNAL FIXATION SYSTEM - An orthopedic fixation ring for an external fixator has a ring or a ring-segment extending around a center axis. The ring comprises a first surface running perpendicular to the center axis, a second surface which is parallel to the first surface, and a plurality of spaced apart through openings running parallel to the center axis and extending through the fixation plate. The fixation plate has at least a third surface which is parallel to the first surface spaced outwardly thereof with respect to the center axis. A further set of through openings extends from the first surface to the third surface. A fourth surface may be provided which is axially displaced from the second surface with respect to the center axis. The ring preferably is circular or part-circular and is molded from carbon fiber reinforced PEEK. | 11-24-2011 |
Patent application number | Description | Published |
20080286490 | Production of a Platinum-Free Chelate Catalyst Material as an Intermediate Product, and Further Processing Thereof to Obtain an Electrocatalytic Coating as a Final Product - A method for preparing a platinum-free chelate catalyst material as an intermediate product for selective electrocatalytic reduction of oxygen includes performing a low-temperature plasma treatment on a powdery form of the transition-metal chelate in a plasma reactor chamber having an inert plasma gas disposed therein. A plasma power, a plasma gas pressure, a plasma initialization and a treatment time of the low-temperature plasma treatment are selected so that molecules of the transition metal chelate are fragmented in the plasma and cross-link in a subsequent chemical reaction so as to form a carbon matrix and retain a basic chelate structure in a surrounding of the transition metal. | 11-20-2008 |
20110130270 | METHOD FOR PREPARING FUEL CELL ELECTRODE CATALYST AND SOLID POLYMER FUEL CELL - According to the present invention, the catalyst performance of a chelate catalyst comprising a complex of a macrocyclic compound such as a porphyrin derivative is improved. Also, the following method is provided: a method for preparing a fuel cell electrode catalyst comprising a nitrogen-containing metal complex in which a metallic element is coordinated with a macrocyclic organic compound, such method comprising the steps of: adding tin oxalate to the nitrogen-containing metal complex; and baking a mixture of the nitrogen-containing metal complex and tin oxalate in an inert gas atmosphere, wherein elution of metal tin is carried out via acid treatment. | 06-02-2011 |
20120149545 | ELECTRODE CATALYST FOR FUEL CELL - An object of the present invention is to provide a platinum catalyst for a fuel cell, the platinum catalyst having platinum particles with a fine particle size which are supported on carbon carriers in a highly dispersed manner. To achieve the above object, the present invention provides a method for producing an electrode catalyst for a fuel cell, the method comprising: an ammonia treatment step of heat-treating carbon carriers in an ammonia gas atmosphere; a platinum salt contact step of mixing the carbon carriers treated with ammonia with a solution prepared by dissolving a platinum salt in a solvent and bringing the platinum salt coming into contact with the carbon carriers in the mixture that has been formed; a recovery step of recovering the carbon carriers by removing the solvent from the mixture; and a heat treatment step of heat-treating the recovered carbon carriers in an inert gas atmosphere. | 06-14-2012 |
20120196738 | METHOD FOR PRODUCING ELECTRODE CATALYST FOR FUEL CELL - The present invention provides a method for producing an electrode catalyst for a fuel cell, comprising the steps of: mixing conductive particles loaded with catalyst metal fine particles with an organic compound; and heat treating the mixture formed in the mixing step under an inert gas atmosphere, so as to carbonize the organic compound. According to the present invention, the size increase of catalyst metal fine particles, which lowers catalytic activity, can be suppressed. | 08-02-2012 |