43 results about "Cuneus" patented technology

Apparatus for performing an open wedge, high tibial osteotomy, the apparatus comprising:

• • cutting apparatus for forming an osteotomy cut in the tibia, the cutting apparatus comprising:
    • targeting apparatus for identifying a cutting plane through the tibia and a boundary line for terminating a cut made along the cutting plane, wherein the boundary line is located within the tibia, parallel to the anterior-posterior slope of the tibia and parallel to the sagittal plane of the patient.

A method for performing an open wedge, high tibial osteotomy, the method comprising:

• • positioning targeting apparatus for identifying a cutting plane through the tibia and a boundary line for terminating a cut made along the cutting plane, wherein the boundary line is located within the tibia, parallel to the anterior-posterior slope of the tibia and parallel to the sagittal plane of the patient;
  • cutting the bone along the cutting plane, with the cut terminating at the boundary line;
  • moving the bone on either-side of the cut apart so as to form the wedge-like opening in the bone; and
  • stabilizing the bone.

A polyaxial bone screw having a bone implantable shank, a head and a retaining ring. The retaining ring includes an outer partial hemispherical surface and an inner bore with radially extending channels and partial capture recesses. The shank includes a bone implantable body with an external helical wound thread and an upwardly extending capture structure. The capture structure includes at least one spline which extends radially outward and has a wedged surface that faces radially outward therefrom. The capture structure operably passes through a central bore of the retaining ring while the spline passes through a suitably shaped channel so that the spline becomes positioned above the head at which time the shank is rotated appropriately and the shank is drawn back downwardly so that the spline engages and seats in the capture recess. The head includes an internal cavity having a spherical shaped surface that mates with the ring surface and has a lower restrictive neck that prevents passage of the ring once the ring is seated in the cavity.

This invention relates to an implant to be inserted in the disc space between two adjacent vertebrae for the correction of the vertebral spine curvature. The configuration (lateral view) of the invention is basically a wedge or acute-angled isosceles trapeze, wherein the area opposite the shorter base or opposite to the vertex is a rounded pyramid-like surface, and the upper and lower surfaces of the trapeze include fixation protuberances to the vertebral plates of the adjacent vertebrae.

An osteotomy plate for maintaining the spacing of a wedge-like opening in bone, the osteotomy plate comprising: a body having a front side and a back side; a key extending out of the back side of the body for disposition in a keyhole formed in the bone along the wedge-like opening; and a plurality of mounting holes for receiving fixation screws therein, the mounting holes being formed in the body such that when the key is disposed in the keyhole, the mounting holes direct the fixation screws into bone on either side of the wedge-like opening.

Deformities present on the end of a bone, for example the end of the metatarsal bone making up part of the metatarsocuneiform joint, can lead to deformities such as bunions. These deformities are treatable with an implant that comprises a plate with a wedge extending perpendicular from the plate. Following removal of cartilage from the joint, deformed portions at the end of the bone are removed and the wedge is inserted in the joint and held in place when the plate is attached to the bones flanking the joint. This effectively fuses the two bones together. The wedge can be shaped in various ways depending on the particular deformity present.

A method for performing an open wedge osteotomy, the method comprising:

• • forming a cut in a bone;
  • manipulating the portions of the bone adjacent to the cut so as to open the cut into a wedge-like opening;
  • providing an osteotomy implant, wherein the osteotomy implant comprises:
    • an elongated body characterized by a distal end and proximal end, the elongated body having a screw thread thereon;
  • positioning at least the distal end of the elongated body into the wedge-like opening so that the screw thread engages the surrounding bone; and
  • threadingly advancing the elongated body into the wedge-like opening until the portions of the bone assume the desired positioning, with the elongated body stabilizing the bone portions in this position.

A slicing device for cutting fruits or vegetables into wedges, cubes, or other desired shapes includes a slicing frame and a pusher, in which the frame includes a grid of internal cutting blades. The pusher is configured to be used to push at least partially sliced food items through the gaps between cutting blades. In some versions, the pusher is pivotally attached to the slicer and includes a removable container.

The present invention comprises a novel method and apparatus for performing an open wedge, high tibial osteotomy. More particularly, the present invention comprises the provision and use of a novel method and apparatus for forming an appropriate osteotomy cut into the upper portion of the tibia, manipulating the tibia so as to open an appropriate wedge-like opening in the tibia, and then mounting an appropriately-shaped implant at the wedge-like opening in the tibia, so as to stabilize the tibia with the desired orientation, whereby to reorient the lower portion of the tibia relative to the tibial plateau and hence adjust the manner in which load is transferred from the femur to the tibia.

An osteotomy plate for maintaining the spacing of a wedge-like opening in bone, the osteotomy plate comprising:

• • a body having a front side and a back side;
  • a protrusion extending out of the back side of the body for disposition in the wedge-like opening; and
  • a plurality of mounting holes for receiving fixation screws therein, the mounting holes being formed in the body such that when the protrusion is disposed in the wedge-like opening, the mounting holes direct the fixation screws into bone on either side of the wedge-like opening.

The invention relates to a thigh stump endoprosthesis for an exoprosthetic treatment of a patient whose leg has been amputated in the thigh area, whereby the thigh stump can be pulled into a shaft to which the replica of a lower leg part and foot part of the prosthesis is attached. The inventive prosthesis includes a proximal shaft part which can be inserted inside a femur stump, whereby the shaft part is at least partially covered by an open-mesh three-dimensional spatial network structure, and includes a conical adapter on the distal end thereof. A condyle replacement which re-creates the shape of natural condyles of a knee joint can be coupled to the shaft part by means of said adapter. A cuneiform support can be joined to the condyle replacement with a wedge angle alpha which restores the valgity of the leg.

Methods and implants to treat anterior cruciate ligament (ACL) injuries are disclosed. The methods involve advancing the insertion of the patellar tendon to the proximal tibia by means of a partial osteotomy and a wedge-shaped cage (30). The wedge-shaped cage is specifically designed to facilitate transfer of not only compressive loads, but also of shear loads due to pull by the patellar tendon at its insertion to the tibial tuberosity. The cage decreases the angle between the patellar tendon and the common tangent plane formed by the condyles of the femur and the condyles of the tibia (sometimes called tibial plateau) and consequently modifies the internal joint force, restoring stability to the joint even if the ACL is ruptured. The methods and implants are applicable to both human and canine patients.

The present invention relates to a fixing tool for an open-wedge high tibial osteotomy, and a fixing tool for an open-wedge high tibial osteotomy, which is installed on a tibia cut open due to a tibial osteotomy, includes: a fixing plate which includes a head portion that has a plurality of nut holes, and an elongated plate that has a plurality of nut holes and a long hole and is formed to protrude from one side of the head portion; screws which are coupled to the nut holes; and a block which is detachably installed in the long hole by using a fixing screw. Therefore, the fixing tool is closely fixed to a tibia, which has been cut open due to a procedure of a high tibial osteotomy, thereby enabling solid union of the tibia.

The invention relates to an interdental wedge for use with a matrix band when preparing a filling on a tooth to be restored and/or for use with a rubber dam, by inserting the interdental wedge into an area near the gingiva between the tooth to be restored or to be treated and an adjacent tooth, with an insertion area having a cross section delimited by a lower face, by an inner face and by an outer face, wherein, in the state inserted near the gingiva, the lower face is directed towards the gum, the inner face is directed towards the tooth to be restored or to be treated, and the outer face is directed towards the adjacent tooth, wherein the inner face and the lower face run together in an edge, which is designed such that, in the state inserted near the gingiva, it bears on the tooth to be restored or to be treated, in order to provide a sealing action against passage of material.

A wedge is used to engage on one side with a femoral tunnel or a tibial tunnel and on the opposite side engage with a bone plug. This is accomplished by forming a wedge being substantially semi-circular on one side and flat on the opposite side.

A transceiver module release system is disclosed. The system may be used to release a transceiver module housed in a cage that is permanently mounted on a printed circuit board. The release system may include a bail that rotates a slide-block through a slot to urge the bail forward in a slide-block path on the transceiver module. The bail has a hook shaped structure adapted to be connected with a detachable pull tab. As the bail begins to move forward from the locked position, wedge elements at the end of a pair of slide-block arms extending rearward from the bail may contact locking tabs on the cage, forcing the locking tabs outward. As the locking tabs are forced outward, the shoulders of the transceiver module are released, and the transceiver module is free to slide-block out of the cage as the operator pulls on the bail.