Patent classifications
A61B17/6458
Anatomic external fixation system for the ankle
An external fixator system includes a proximal frame configured to restrict motion in a lower extremity of a subject, and a frame connector assembly. The proximal frame includes a first, second, and third component. The first component can support a first clamp to secure a first pin inserted within a bone extending between a foot and a knee of the lower extremity. The third component extends from a second end of the second component. The first, second and third components have longitudinal axes that are substantially coplanar. The third component includes an extension to extend over a dorsal portion of the foot of the subject and to support a second clamp to secure a second pin inserted within a bone of the foot. The frame connector assembly extends from the second component to support a third clamp to secure a third pin inserted within a third bone of the foot.
ADJUSTABLE STRUT ASSEMBLIES FOR EXTERNAL FIXATION SYSTEMS
Length-adjustable strut assemblies for external fixation systems, and corresponding external fixation systems, are disclosed. The strut assemblies include an elongate first and second end members, an elongate intermediate member, and first and second adjustment mechanisms. The intermediate member comprises a threaded rod fixedly coupled within an axial cavity thereof, and is rotatably fixed and axially translatably within an axial cavity of the first end member. An end portion of the second end member is received within the axial cavity of the intermediate member, and the second end member comprises an axial cavity threadably coupled with the threaded rod. The first adjustment mechanism is configured to selectively axially fix the intermediate member relative to the first end member. The second adjustment mechanism is configured to selectively rotate the second end member with respect to the threaded rod to axially translate the second end member relative to the intermediate member.
CLAMPING DEVICE FOR USE WITH AN ANATOMIC EXTERNAL FIXATION DEVICE
A clamping system includes a first clamp body including a first jaw, a second jaw, and a first aperture configured to receive a bone pin, the first clamp body is configured to receive a first connector rod between the first jaw and the second jaw, a second clamp body coupled to the first clamp body and including a third jaw, a fourth jaw, and a second aperture configured to receive the bone pin, the second clamp body configured to receive a second connector rod between the third jaw and the fourth jaw, and a securing assembly movable between a first position and a second position, such that moving the securing assembly from the first position to the second position reduces a distance between the first jaw and the second and reduces a distance between the third jaw and the fourth jaw.
Transosseous ribbon wire devices and a system and method for using the devices
Devices for use in performing external fixation orthopedic surgery are provided. More particularly, a specialized transosseous wire having a rectangular cross-section is provided. The specialized wire is installed using a reciprocating motion. Thereafter, the specialized transosseous wires are affixed to a frame. Methods of using the transosseous wire are also disclosed.
ADJUSTABLE RAIL APPARATUS FOR EXTERNAL FIXATION SYSTEMS
Adjustable rail apparatuses and external bone and/or tissue fixation system including an adjustable rail apparatus is disclosed. The rail apparatuses comprise first and second external fixation beam elements with alignment grooves, and a joint coupling the first and second beam elements and configured to selectively adjust the relative angular and rotational arrangement of the first and second beam elements. The joint also comprises a first and second beam end housings rotationally fixed to the first and second external fixation beam elements, respectively. The joint also comprises first and second clamp members axially and rotationally fixed to the first and beam end housings, respectively. The joint also comprises first and second rotation end housings coupled with the first and second clamp members, respectively, the first and second rotation end housings being selectively rotatably adjusted with respect to the first and second clamp members, respectively, within fixed ranges of rotation.
MULTIPLE TRACK SYSTEM FOR POSITIONING OF BONE SEGMENTS
The present invention presents various embodiments showing combination of a body, rods, platforms and pin (or wire) clamps for the relative fixation of separated bone segment. In some embodiments there is an overall linear arrangement of the assemblies. The rods are threaded and extend lengthwise throughout a substantial portion of the length of the body. Engaged with the threaded rods are one or more moveable platforms, with each moveable platform engaging one or more pin clamps. Preferably each moveable platform includes at least one tapped (generally threaded) hole and at least one smooth through-hole in each moveable platform, so that each moveable platform engages with one threaded rod via the tapped hole but can pass freely along the other threaded rod. Each body also typically bears at least one stationary platform, generally at or near one end of the device.
Clamping device for use with an anatomic external fixation device
A clamping device includes a clamp body and a locking assembly. The clamp body includes a first jaw defining a first opening and a second jaw defining a second opening. The locking assembly includes a first locking element, a second locking element, and a lever. The first locking element includes a first end and a shaft portion extending from the first end. The shaft portion is sized to pass through the first opening and the second opening. The locking assembly is configured to reduce a distance between the first jaw and the second jaw responsive to rotation of the second locking element. The lever is configured to attach to the second locking element and rotate about the second locking element from a first position to a second position to cause the distance between the first jaw and the second jaw to be reduced further.
External bone fixation systems
The present application provides external bone and tissue fixation systems and related methods. The fixation systems may include an elongate beam element defining an axis with an axially extending threaded track portion. The systems may also include at least one drivable fixation clamp assembly comprising a housing with a central bore, a driving housing rotatably coupled to the housing, a threaded driving member, and a clamp assembly rotatably coupled to the housing configured to clamp to at least one fixation member. The elongate beam element may extend axially through central bore of the housing. The driving member may be movable with respect to the central bore via rotation of the driving housing between engaged and disengaged states with the threaded track portion. Rotation of the driving member in the engaged state may axially translate the clamp assembly along the beam element.
Method for percutaneous fixation of a humeral head fracture and related device
A method for percutaneous fixation of a humeral head fracture and a related external fixation device, the method comprising the steps of: inserting two oblique wires through the cortical bone of the humerus shaft, said oblique wires being substantially oblique with respect to the humeral axis and crossing the surgical neck toward the humeral head; inserting two proximal transverse wires through the cortical bone of the humerus, said proximal transverse wires being substantially perpendicular with respect to the humeral axis and being inserted into the humeral head; inserting two distal transverse wires through the cortical bone of the humerus, said distal transverse wires being substantially perpendicular with respect to the humeral axis and being inserted into the humeral shaft; connecting the oblique wires, the proximal transverse wires and the distal transverse wires to a common external fixator frame.
Y-Frame External Bone Fixator
In an embodiment of the invention, a fixator for fixating bone fractures includes a Y-frame having superior, anterior and posterior arms. The arms may be slotted and may accept mounting hardware for supporting fixation pins or transfixion pins. Various components of mounting hardware may be able to be adjusted either in discrete steps or in continuous manner, for various degrees of either translation or rotation. The Y-frame may be rigid, or may have joints that allow either angulation or arm-twisting adjustment. Arms may be provided joinable interchangeably to a hub. A kit of such parts may be provided.