| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 606313000 | Radially expandable | 17 |
| 20080288003 | REVERSIBLY EXPANDABLE FIXATION DEVICE - A reversibly expandable vertebral fixation screw and minimally invasive techniques for inserting the screw are provided. The screw incorporates a divided tip and an expansion device that allows for the divided components of the tip of the screw to expanded outward to engage the internal surfaces of the vertebral body. | 11-20-2008 |
| 20090043342 | Flat Shaft Fasteners - Disclosed is an expanding fastener. The expanding fastener includes two walls configured to be inserted in a bore in a bone, said two walls include: one first wall having at least one first flat planar wall portion, and one second wall. The expanding fastener further including a shaft having one flat planar shaft portion configured to slide along said one first flat planar wall portion, said shaft further having a shape configured to cause radial outward movement of at least one of said two walls during said sliding. | 02-12-2009 |
| 20090105771 | Multi-Axial Expandable Pedicle Screw and an Expansion Method Thereof - The invention disclosed a multi-axial expandable pedicle screw and an expansion method by using the same. Structure of the screw comprising a hollow screw being spherical shaped end connecting with an adapting piece, which is universal joint structure; an inner wall of the adapting piece connecting a lock bolt through screw threads; the hollow screw with sharp shaped on another end having a bore inside formed hollow structure in its entirety; the bore having taper shaped tip; expansion gaps uniformly setting up two, or three or four or more anterior fins on the hollow screw along its axial direction upward, prolonging from its tip to the bore; the inner needle is disposed in the bore. The invention can reduce the pedicle screw loose and even occurrence ratio of pull-out and increase the stability and reliability and reduce the failure rate of spinal surgeries at the same time. It is also easy to operate, and degree of expansion is of controllable level. | 04-23-2009 |
| 20090131992 | EXPANDABLE ATTACHMENT DEVICE AND METHOD - An attachment device with a radially expandable section is disclosed. The attachment device can have helical threads, for example, to facilitate screwing the attachment device into a bone. Methods of using the same are also disclosed. The attachment device can be positioned to radially expand the expandable section in cancellous bone substantially surrounded by cortical bone. | 05-21-2009 |
| 20100016905 | EXPANDABLE ATTACHMENT DEVICE AND METHOD - An attachment device with a radially expandable section is disclosed. The attachment device can have helical threads, for example, to facilitate screwing the attachment device into a bone. Methods of using the same are also disclosed. The attachment device can be positioned to radially expand the expandable section in cancellous bone substantially surrounded by cortical bone. | 01-21-2010 |
| 20100145396 | Bolt Apparatus - The invention provides a bolt apparatus for fixation of bones, the bolt apparatus comprising an expandable section having respective ends, the expandable section being operable between a contracted position and an expanded position; and expanding means in operable association with the expandable section, to displace the expandable section between the contracted position and the expanded position by simultaneously applying force to the respective ends of the expandable section, such that each of the respective ends of the expandable section are advanced toward the opposing respective end. The invention also provides a method for fixation of bones. The method comprises the steps of reducing the fracture; providing a channel across the fracture; inserting a bolt apparatus of the invention; and fixing the bolt apparatus in the channel. Preferably, the method also comprises providing a plate in operative association with the bolt. | 06-10-2010 |
| 20100228301 | ATTACHMENT DEVICE AND METHODS OF USE - An attachment device with a radially expandable section is disclosed. The attachment device can have helical threads, for example, to facilitate screwing the attachment device into a bone. Methods of using the same are also disclosed. The attachment device can be positioned to radially expand the expandable section in cancellous bone substantially surrounded by cortical bone. | 09-09-2010 |
| 20100241176 | FASTENING ELEMENT - A fastening element, particularly a peg, for fastening bone fragments or the like, is divided into at least two partial elements ( | 09-23-2010 |
| 20100324607 | PEDICLE SCREW WITH EXPANSION ANCHOR SLEEVE - A bone anchor for use in conjunction with orthopedic spinal fixation comprising a pedicle screw having a threaded proximal tip for threaded insertion into a hole prepared into a vertebral body through the pedicle of the vertebra from the posterior approach. The shank of the anchor is of smaller diameter than the proximal tip so as to receive a sleeve after insertion into the bone. The tubular sleeve is provided with a plurality of longitudinal slots evenly arranged about the longitudinal axis of the sleeve to forming a plurality of longitudinal. A tubular compression collar for insertion over said shank portion is provided on the shank and driven toward the proximal tip compression the sleeve and causing the ribs to expand radially into a star pattern securing the anchor in the bone. A tubular collar of natural or synthetic bone growth promoting material may be inserted to promote bone growth, close the hole and further stabilize the anchor. An elastomeric collar may also be inserted over the shank and extend beyond the end of the shank to flexibly receive a rod seat for receiving an orthopedic rod affixed to said elastomeric collar. | 12-23-2010 |
| 20110238124 | ACTIVE BONE SCREW - A bone screw includes a head portion and shank portion. The shank portion includes a regularly outwardly expanding threaded portion. | 09-29-2011 |
| 20120059429 | Fixation Device With Magnesium Core - A fixation device comprises a biodegradable inner core extending along a longitudinal axis from a distal tip to a proximal end in combination with a sleeve surrounding the core along a portion of a length thereof and comprising a thermoplastic polymer formed of a material which softens and expands into surrounding bone tissue when activated by an energy source. | 03-08-2012 |
| 20130053902 | APPARATUS AND METHODS FOR IMMOBILIZATION AND FUSION OF A SYNOVIAL JOINT - Methods and apparatus for immobilizing a synovial joint, such as a sacroiliac (SI) joint are disclosed. In one form, a multipiece fixation device, such as a dowel, includes multiple expandable fasteners that are configured to fix adjacent bones of a synovial joint with respect to one another. The expandable fasteners include expansion portions that are expanded radially via insertion of another expandable fastener or an expansion device to fix the expandable fasteners to the bone. The fixation device may be configured to provide for compression or distraction of the bones of the synovial joint while at the same time stabilizing the joint. | 02-28-2013 |
| 20130226250 | Systematic Displacement Bone Screw - The present invention is a systematic displacement bone screw having minor and major thread diameters that are constant instead of tapered. The crests at the tip of the screw are narrower than the crests near the screw head resulting in a smaller distance between the thread flanks, which displaces and/or compresses more bone matter. Because the major diameter remains constant, the diameter of the hole made by inserting the screw is consistent over the length of the screw allowing the screw to be adjusted without loosening. The systematic displacement screw with varying crest thicknesses also avoids the need to use a larger diameter screw in place of a removed screw during a repair procedure. Rather than increasing the size of the hole, the systematic displacement screw can be used for the both the original screw and the replacement screw. | 08-29-2013 |
| 20130310883 | EXPANDABLE BONE FIXATION ELEMENT - A threaded bone fastener including a threaded shank, a head extending from the shank, one or more expandable elements, each having a distal end or a proximal end pivotally attached to the shank, the expandable elements being expandable radially outwards from the shank and contractible radially inwards towards the shank, wherein expansion and contraction of the expandable elements does not change an overall length of the shank. | 11-21-2013 |
| 20140012336 | BONE ANCHOR - A bone anchor includes an anchor member including a first material, and having a tubular section extending along a longitudinal axis, a region configured to expand radially outwards from the longitudinal axis, and a bone engagement structure projecting from at least a portion of the expandable region of the tubular section, and a core member including a second material, and configured for insertion into and connection to the anchor member. When the core member is in the anchor member and is actuated relative to the anchor member, the tubular section is adjustable between a first position where the expandable region of the tubular member has a first length and a first maximum diameter, to a second position where the expandable region of the tubular member has a length shorter than the first length and a maximum diameter greater than the first maximum diameter. | 01-09-2014 |
| 20140107713 | Subtalar Implant - A subtalar implant ( | 04-17-2014 |
| 20160095638 | ORTHOPEDIC SCREW - An orthopedic screw having a shaft and a thread ribbon is provided. The shaft includes a proximal driving end and a distal end. The thread ribbon extends around the shaft and including a base portion that is rigidly attached to the shaft and a flange portion that is resilient. The flange portion extends away from the shaft at a preset angle to form a preset outer thread diameter in a preset configuration. The flange portion extends away from the shaft at a second angle greater than the preset angle to form a second outer thread diameter greater than the preset outer thread diameter when the orthopedic screw is subjected to a pull out force. | 04-07-2016 |
