Abstract: The rivet nut (22) includes: the threaded attachment to replace the weld nut, the collar to spread the load interface to plastic panel (14) and to the attached component, room for a sleeve type compression limiter (24), or a collar that would be an integrated compression limiter.

Abstract: A guide is disclosed that operates to guide in the creation of a bone spur to facilitate harvesting a quadriceps tendon and includes an end having a width equal to a desired graft width with a terminal slope equal to a cutting angle desired. In use, the guide may be initially positioned parallel to the femur to form guide cuts in the patella. The guide is then rotated ninety degrees to allow an angled cut at the guide cut. The guide is again rotated, this time one hundred eighty degrees and a second angled cut made on the other guide cut. A final lateral cut is made and the bone spur may be lifted from the patella.

Abstract: A spinal screw includes a shaft formed with a lumen and including a head, and a distal movable member including a distal tip and arranged to move in a distal portion of the lumen. A distal movable member (18) includes a proximal surface (24) arranged to abut against a stopper (26) formed in the shaft (12).

Abstract: A bone screw may be insertable into a bone, and may have a proximal member, a distal member with bone-engaging threads, wherein the distal member is configured to slidably engage the proximal member such that a variable-length cavity is defined within the proximal member and the distal member, and a tension member residing at least partially within the variable-length cavity. The tension member may have a proximal end coupled to the proximal member and a distal end coupled to the distal member such that, in response to motion of the distal member away from the proximal member, the tension member elongates and urges the distal member to move toward the proximal member. The proximal member and the distal member may be interconnected to share bending loads at a bending transmission feature.

Abstract: An orthopaedic surgical instrument includes a polymer 4-in-2 cutting instrument having a number of metallic cutting guides secured thereto. An A/P femoral cutting block of the instrument is removably secured to the instrument's chamfer femoral cutting block.

Abstract: The use of S-enantiomerically enriched compositions of beta blockers for treating muscle weakness. The beta blocker can be oxprenolol or a pharmaceutically acceptable salt thereof.

Abstract: A bone screw for sacroiliac joint fusion is characterized by a longitudinal bone screw and a cylindrical sleeve received on a proximal end of the bone screw. The sleeve has axially extending fins or flutes on its outer surface that extend generally from one end of the sleeve to the other end of the sleeve. This feature allows the sleeve to resist reverse rotation which, in turn, aids in preventing back-out of the bone screw once installed. The bone screw has a self-tapping tip that allows the bone screw to be installed without need for a pilot hole, and self-harvesting geometry that gathers and retains bone shavings in and along the bone screw that are produced by bone screw installation for use as graft for bone fusion.

Abstract: The present invention discloses an alignment guide apparatus, system, and method. The alignment guide apparatus includes a body, a fixation insert, a guide pin, and a screw. The body may include an arm with a first end and a second end, an attachment portion at the first end, and an alignment portion at the second end. The fixation insert may be configured to pass through the attachment portion and the guide pin may be configured to pass through the alignment portion. The screw may be configured to engage the guide pin. The alignment system may include a bone plate, an alignment guide, a screw, at least one first fastener, and at least one second fastener. A method for moving a joint is also disclosed.

Abstract: The present invention discloses an alignment guide apparatus, system, and method. The alignment guide apparatus includes a body, a fixation insert, a guide pin, and a screw. The body may include an arm with a first end and a second end, an attachment portion at the first end, and an alignment portion at the second end. The fixation insert may be configured to pass through the attachment portion and the guide pin may be configured to pass through the alignment portion. The screw may be configured to engage the guide pin. The alignment system may include a bone plate, an alignment guide, a screw, at least one first fastener, and at least one second fastener. A method for moving a joint is also disclosed.

Abstract: An intramedullary bone fixation device is disclosed herein. The device includes a first longitudinally extending member, a second longitudinally extending member, and a coupling member. The first longitudinally extending member includes a connector end and a bone engagement end opposite the connector end. The second longitudinally extending member includes a connector end and a bone engagement end opposite the connector end. The coupling member is configured to engage the connector ends of the respective longitudinally extending members, thereby coupling the first longitudinally extending member to the second longitudinally extending member. The device may be provided in an kit form at least partially unassembled. The device may be delivered into a fracture and fully assembled within the fracture or adjacent bone via percutaneous or minimally invasive surgical procedures. The device, on account of its configuration and assembly, may be considered modular in some cases.

Abstract: A bone plate system for repair of a proximal humeral head fracture, which includes a fixation plate having a main body and a depending alignment flange, a plurality of elongated compression screws to extend through the intact humeral head into the cortical bone of the fractured portion and a cover plate. With the fixation plate in place, fastened to the humerus, the cover plate is in turn fastened to the fixation plate and provides a defined amount of clearance in a region adjacent the heads of the compression screws to allow measured back-out of the screws upon settling of the fractured bone portion at the fracture site.

Abstract: The present invention relates to a device for fixation of bone fragments at bone fractures.

Abstract: A device for fixation of bone fragments at bone fractures including at least two fixation means (5, 6), a securing plate (4) and at least one securing means (23) for the fixation means.

Abstract: An interchangeable orthopedic blade that includes an internal portion and an external portion. The internal portion threads onto either a pre-installed K-wire or a pre-installed screw so as to more accurately place the interchangeable orthopedic blade in, without excessive damage to, the bone when repairing a fracture in the bone, and ultimately providing absolute stable fixation by the interchangeable orthopedic blade holding the fracture in its anatomic position and resisting applied forces while healing, to thereby provide a stable anatomic restoration and eliminate a need for revision surgery due to failure of fixation or malunion. The internal portion is received in the external portion, and rotates relative to the external portion, but has the external portion move non-rotatably axially with the internal portion into the bone as the internal portion threads onto either the pre-installed K-wire or the pre-installed screw.

Abstract: 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.

Abstract: A locking screw for an intramedullary nail having at least one transverse hole. The locking screw has a central longitudinal axis and includes a screw shank, which is at least partially provided with an external thread, and a screw head. The diameter of the screw head is greater than the outer diameter of the external thread, and the screw head includes a passage extending generally parallel to the longitudinal axis of the screw and the external thread. The passage is configured to receive a longitudinal wedge element. As a result, any gap between the locking screw and the intramedullary nail is eliminated and the screw is wedged in position in the transverse hole of the intramedullary nail.

Abstract: 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.

Abstract: 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.

Abstract: Locking nail system for arthrodesis reconstruction of calcaneus fractures which includes a nail, several calcaneus-talar screws, and a guide. The system is usable for the reconstruction of severe comminuted fractures of the calcaneus in humans and fixation of this bone after reconstructing its principal form, to the talus, in order to attain arthrodesis or fusion with the latter. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: 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.

Abstract: 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.

Abstract: A coupling assembly is presented. The coupling assembly is used to selectively couple a bone screw having an elongate shaft and a head to an elongate rod. The coupling assembly has a coupling element configured to engage the head of a bone screw, as well as the elongate rod. When the elongate rod is engaged by the portion of the top of the coupling element, the coupling element does not extend above a top most portion of elongate rod.

Abstract: Intramedullary medical devices (e.g., intramedullary nails) and methods for their use and manufacture are described herein. The intramedullary medical devices described herein may provide sustained compressive forces across a bone fusion site despite bone resorption processes. Through various embodiments, the intramedullary medical devices described herein may provide non-linear force curves relative to displacement. Intramedullary medical devices are described with multiple elements made of different materials. Examples of intramedullary medical devices are described with shape memory alloys.

Abstract: The assembly supports the trailing end of a lag screw or hip nail device being used to immobilize a hip fracture, and enables the compression of the fractured bone ends together, thereafter enabling sliding of the femoral head together with the lag screw or hip nail laterally, while simultaneously limiting their rotation, thereby promoting healing of the fracture.

Abstract: An intramedullary device includes an intramedullary nail extending along a longitudinal axis from a proximal end to a distal end, a proximal portion of the intramedullary nail including a cavity extending from an opening at the proximal end along the longitudinal axis and a locking hole extending transversely therethrough along with a first insert sized and shaped for insertion into the cavity along the longitudinal axis thereof and including a transverse bore aligning with the locking hole and a second insert for engaging an inner surface of the cavity proximally of the first insert to retain the first insert within the cavity and including a central bore extending longitudinally therethrough for coupling to an insertion instrument.

Abstract: A bone fixation device is provided with an elongate body having a longitudinal axis and having a flexible state and a rigid state, a plurality of grippers disposed at longitudinally spaced locations of the elongated body, a curved rigid hub connected to the elongated body, and an actuator operably connected to the grippers to deploy the grippers from a first shape to an expanded second shape. Methods of repairing a fracture of a bone are also disclosed. One such method comprising inserting a bone fixation device into an intramedullary space of the bone to place at least a portion of an elongate body of the fixation device in a flexible state on one side of the fracture and at least a portion of a curved rigid hub on another side of the fracture, and operating an actuator to deploy a plurality of grippers of the fixation device to engage an inner surface of the intramedullary space to anchor the fixation device to the bone.

Abstract: 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.

Abstract: A canal diameter reducer is placed within the intramedullary canal alongside an intramedullary rod to stabilize the intramedullary rod and prevent toggling and/or misalignment due to shear. The canal reducer is an elongated block which may be guided into position by a guide wire and may be held in position during insertion of the rod by a suture extending through hole 31. The reducer is inserted through an entry opening formed in the end of the fractured bone. The canal reducer may be fabricated from allograft bone or xenograft bone.

Abstract: An intramedullary nail for the fixation of fractures of the proximal femur, with a femur neck screw (10a), installable with a proximal femur nail (1a), into the intramedullary area, by a diagonal bore (7a), running to the longitudinal axis of the femur nail (1a), from the side of the femur nail (1a), and a locking element (16a) with at least one prong (18a) parallel to the axis of the femur neck screw (10a). A positive connection between the locking element (16a) and a groove (8a) in the bore (7a) of the femur nail (1a) forms a twisting lock of the femur neck screw (10a) and, allows for the axial movement of the femur neck screw (10a) in the bore (7a) of the femur nail (1a).

Abstract: An intramedullary bone device comprises a distal outer member, a proximal outer member for positioning in substantial axial alignment with the distal outer member, the distal and proximal outer members each having at least one opening in a wall thereof. The distal outer member and the proximal outer member each have a passage therein. The device also has a distal inner member sized to be slideably received within the passage of the distal outer member and a proximal inner member sized to be slideably received within the passage of the proximal outer member. An extender/retractor is able to selectively extend or retract to selectively lengthen or shorten, respectively, the device. The device has pins movable between a retracted position and an extended position, wherein the pins extend through the at least one opening in the distal and proximal outer members to fix the device to a bone during use.

Abstract: A bone fixation device is provided with an elongate body having a longitudinal axis and having a flexible state and a rigid state, a plurality of grippers disposed at longitudinally spaced locations of the elongated body, a curved rigid hub connected to the elongated body, and an actuator operably connected to the grippers to deploy the grippers from a first shape to an expanded second shape. Methods of repairing a fracture of a bone are also disclosed. One such method comprising inserting a bone fixation device into an intramedullary space of the bone to place at least a portion of an elongate body of the fixation device in a flexible state on one side of the fracture and at least a portion of a curved rigid hub on another side of the fracture, and operating an actuator to deploy a plurality of grippers of the fixation device to engage an inner surface of the intramedullary space to anchor the fixation device to the bone.

Abstract: A system and method for attaching soft tissue to bone is provided. In general, the apparatus includes an expandable body that is configured to expand into bone, and an expander pin that is adapted to be driven into the expandable body. The device can also include a tissue attachment apparatus that can be used to secure tissue to the device, thereby providing a method for attaching tissue to bone.

Abstract: The invention relates to a bone fixation means (1) comprising: A) a longtitudinal shaft (2) with longtitudinal axis (3), and; B) an anchoring element (4), which can be fixed inside a bone and which has the same longitudinal axis (3) and is characterized in that; C) interacting means (5; 6) are provided on the shaft (2) and on the anchoring element (4), which either permit or prevent a rotation of the anchoring element (4) about the longitudinal axis (3) relative to the shaft (2).

Abstract: An intramedullary nail for treating fractures of a bone includes a body having a head, an intermediate portion and a distal tip. At least one transverse opening for receiving a screw is provided in the body. The opening comprises an insert adapted to receive the screw.

Abstract: 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.

Abstract: The present invention discloses a securing device that is used to secure a fixation device to two bone portions to promote healing between the two bone portions. The bone portions commonly include a skull bone portion and a skull bone flap or implant, and the fixation device is commonly a cranial clamp. The securing device provides for securing the fixation device in a uniform, single movement as opposed to currently available products. The securing device has two handles pivotably connected, and a gripping means moveably associated with one handle. As the handles are activated, the gripping means travels proximally along the one handle and grips an elongated section of the fixation device and exerts a tensioning force along the shaft of the elongated section prior to the cutting means cutting the elongated shaft to secure the fixation device in place.

Abstract: An improved polyaxial mechanism is disclosed. The mechanism preferably works in conjunction with a bone plate and fixation mechanism, such as a screw, rod, or the like. The improved polyaxial mechanism increases the strength of the locking among the locking mechanism, fixation mechanism, and bone plate. In addition, the improved polyaxial mechanism allows for easy locking among the elements, as well as more difficulty in unlocking the elements. A method for utilizing the improved polyaxial mechanism is also disclosed.

Abstract: A connecting device is provided for use in orthopedic surgery, for example to connect a spinal rod and a vertebral screw or hook. The connector generally includes a receiver member for receiving an elongated member, and an grommet member for receiving a bone fixation member. The grommet member is inserted into the receiver member so that the receiver member and grommet member are rotatably connected. One or more disks may be placed between the receiver member and grommet member to assist in locking the device.

Abstract: This device addresses the treatment of femoral neck trauma which includes basilar, mid-cervical and sub-cap fractures. The assembly has a lag screw assembly, side plate, compression screw and cortical screw, which are implantable. A syringe adaptor instrument delivers ortho-biologic material to the fracture site through the lag screw assembly. The lag screw assembly utilizes a cannulated screw with external threads and deployable tangs to anchor into the femoral head and is implanted in such a manner as to have the lag screw threads and tangs located on the opposite side of the fracture from the side plate. The distal shaft of the lag screw interfaces with the side plate in a manner which allows axial translation only.

Abstract: The present invention relates to a device for diagnosing physiological state based on blood pulse waves detected in the body. It is the objective of the present invention to provide a device which correctly diagnoses the current physiological state based on changes in physiological state measured over a specified period of time in the past while taking into consideration the cyclical variation exhibited in physiological state.

Abstract: This device addresses the treatment of femoral neck trauma which includes basilar, mid-cervical and sub-cap fractures. The assembly has a lag screw assembly, side plate, compression screw and cortical screw, which are implantable. A syringe adaptor instrument delivers ortho-biologic material to the fracture site through the lag screw assembly. The lag screw assembly utilizes a cannulated screw with external threads and deployable tangs to anchor into the femoral head and is implanted in such a manner as to have the lag screw threads and tangs located on the opposite side of the fracture from the side plate. The distal shaft of the lag screw interfaces with the side plate in a manner which allows axial translation only.

Abstract: Novel bone support assembly, and methods of use, wherein a locking member such as a resiliently flexible band, mounted to a bone support plate, automatically and as a consequence of driving a bone fastener through the bone support assembly and into bone structure of a recipient of such bone support assembly, activates a locking feature of the bone support assembly to thereby prevent the bone fastener from withdrawing out of the bone support assembly and past the locking member.

Abstract: A surgical fastener assembly for coupling first and second bone portions across a fracture therebetween is disclosed. In one embodiment of the present invention, the surgical fastener assembly includes an anchor that has a first externally threaded portion disposed in the first bone portion and a second portion which is at least partially disposed in the second bone portion. At least one pin is operably associated with the first portion of the anchor such that when the pin is in a retracted position the pin is disposed within the anchor and when the pin is in an extended position at least a portion of the pin extends outward from the anchor. An actuator is disposed within the anchor and is operably coupled with the at least one pin. A guide is adapted to be fixedly secured to the second bone portion and includes a sleeve. The second portion of the anchor is received within the sleeve. A fastener is provided that has a head portion and an externally threaded shank portion.

Abstract: An anchor assembly for autologous or artificial tendon grafts comprises an insertion element and a stabilizing element. The insertion element has a stem and a head containing an aperture large enough to receive a graft. The stabilizing element is adapted to be embedded in bone, and comprises a sleeve with a cavity arranged to receive and hold the insertion element stem. In use, the stabilizing element is affixed in the bone, and the stem of the insertion element is placed therein. A tendon graft may be secured to the insertion element either before or after its placement in the stabilizing element. Two such anchors may be linked with one or multiple grafts, in either a two-ply or four-ply arrangement.

Abstract: An implant sterilization tray includes an integral torquing fixture for holding an implant stationary. By incorporating the fixture into the instrument tray, a large, stable base is provided for holding the implant. The user can more readily hold the implant in a stable position with the implant resting in the case and the case resting on a table.

Abstract: The present invention relates to a medical device used to repair intertrochanteric fractures of the femur and a method for inserting and using the same which includes in cooperation a hip screw, a gliding mechanism, an intramedullary nail, and a compression screw. The hip screw includes along a longitudinal axis an externally threaded portion as a bone screw for threadable insertion into the head of the femur and a hollow barrel portion, the barrel portion having a pair of opposed slots provided therein along the longitudinal axis of the hip screw. The hollow barrel portion optionally further includes internal or female threads within the barrel portion near the end of the hip screw opposite the bone screw for threadably engaging a compression screw. The gliding mechanism is retained within the barrel portion of the hip screw with a slidable fit and provides for lateral movement of the intramedullary nail along the longitudinal axis of the hip screw.

Abstract: A universal external device for the protection of the emerging portion of a surgical pin (6) of any diameter used, includes a protective element (1) provided with an axial cylindrical through bore (2) in which is disposed a resiliently deformable insert (5) adapted to receive the projecting end of the pin (6), as well as a locking screw (4) disposed in a tapped hole (3) which opens into said bore (2). The resiliently deformable insert (5) is cylindrical, of a shape and size adapted to those of the axial cylindrical bore (2) which has a distal abutment (2a), the insert (5), under the force of the pressure of the screw (4), deforming and trapping the pin (6) disposed in the insert (5) to prevent any risk of becoming embedded.

Abstract: A graft ligament anchor comprises a graft ligament engagement member disposed in an opening in a bone, the graft ligament engagement member being arranged to receive a graft ligament alongside the engagement member, and a locking member for disposition in the opening, and at least in part engageable with the graft ligament engagement member. Movement of the locking member in the opening causes the locking member to urge the engagement member, and the graft ligament therewith, toward a wall of the opening, to secure the graft ligament to the wall of the opening.

Abstract: The present invention relates to a spine supporting system for correcting or fixing a spine to be a stable state at a diseased part in spine operation. The spine supporting system of the present invention, permits a inner bolt to be inserted in an outer cap preliminarily such that the initial centering of the inner bolt is achieved to a head only by inserting the outer cap to the head of the screw, and therefore makes the insertion of the outer cap and inner bolt to the head easy. Also, by forming a seat recess at an upper part of the outer cap, in which the a head part of the inner bolt could be seated, the head, rod, and outer cap are joined to be integrated with each other so that mutual fixation becomes rigid. Further, by forming a round cut part at a lower part of the outer cap in which the rod is inserted, the insertion of the outer cap to the head becomes easy if the rod is lifted in the head.

Abstract: An adjustable two-dimensional joint for use in hip compression screw assemblies, allows for relative alignment of the lag screw and angle plate, even when these components are effectively fitted to the respective bone sections. The joint has first and second elements (2, 4), formed with complementary male and female cylindrical surfaces (10, 12), which define the plane of adjustment. The first element (2) also defines a hinge point (6) at the axis of the male cylindrical surface (10), and the second element (4) includes a fulcrum (8) extending to the axis of the female cylindrical surface (12). A setting device (20) extends between the two elements (2, 4), which can be extended or contracted to alter the angle subtended at the hinge point/fulcrum (6, 8).