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898 results about "Right femoral head" patented technology
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Upper extremity of right femur viewed from behind and above. [edit on Wikidata] The femoral head (femur head or head of the femur) is the highest part of the thigh bone (femur). It is supported by the femoral neck.
Custom replacement device for resurfacing a femur and method of making the same
InactiveUS6712856B1Joint implantsComputer-aided planning/modellingArticular surfacesRight femoral head
A replacement device for resurfacing a joint surface of a femur and a method of making and installing such a device is provided. The custom replacement device is designed to substantially fit the trochlear groove surface, of an individual femur. Thereby creating a "customized" replacement device for that individual femur and maintaining the original kinematics of the joint. The replacement device may be defined by four boundary points, and a first and a second surface. The first of four points is 3 to 5 mm from the point of attachment of the anterior cruciate ligament to the femur. The second point is near the bottom edge of the end of the natural articulatar cartilage. The third point is at the top ridge of the right condyle and the fourth point at the top ridge of the left condyle of the femur. The top surface is designed so as to maintain centrally directed tracking of the patella perpendicular to the plane established by the distal end of the femoral condyles and aligned with the center of the femoral head.
Owner:KINAMED
Expandable porous mesh bag device and methods of use for reduction, filling, fixation, and supporting of bone
ActiveUS7226481B2Less fear of punctureAvoid breakingInternal osteosythesisSurgical needlesSpinal columnDisease area
The invention provides a method of correcting numerous bone abnormalities including bone tumors and cysts, avascular necrosis of the femoral head, tibial plateau fractures and compression fractures of the spine. The abnormality may be corrected by first accessing and boring into the damaged tissue or bone and reaming out the damaged and / or diseased area using any of the presently accepted procedures or the damaged area may be prepared by expanding a bag within the damaged bone to compact cancellous bone. After removal and / or compaction of the damaged tissue the bone must be stabilized.
Owner:SPINEOLOGY
Custom replacement device for resurfacing a femur and method of making the same
InactiveUS20040098133A1Joint implantsComputer-aided planning/modellingArticular surfacesRight femoral head
Owner:KINAMED
Method and apparatus for bone fixation with secondary compression
Disclosed is a fracture fixation device, for reducing and compressing fractures in a bone. The fixation device includes an elongate body. An axially moveable proximal anchor is carried by the proximal end of the fixation device and comprises a tubular sleeve that includes a plurality of graduations positioned on an outer surface of the tubular sleeve. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. In certain embodiments, the elongated body includes a distal anchor with a distal cutting tip.
Owner:DEPUY SYNTHES PROD INC
Tool
InactiveUS20050245934A1Stabilise the alignment guidePrecise positioningDiagnosticsSurgical sawsRight femoral headSurgery procedure
An alignment guide for use in femoral head surgery comprising: a support arm having a proximal and a distal end; a ring located at the distal end of the support arm and angled to the plane of the support arm; and a collar located at the proximal end of the support arm, the support arm being configured such that the axis of the bore of the collar is located above the ring.
Owner:FINSBURY DEV
Instruments and method for minimally invasive surgery for total hips
InactiveUS7601155B2Precise cuttingHigh cutting precisionSurgical sawsProsthesisLess invasive surgeryRight femoral head
An intramedullary femoral broach aligns two instruments. A femoral neck resector guide slides over the broach and centers on the patient's femoral head to determine the height and angular rotation of resection. A circular ring of the head and cutting arms assure the system will fit any femur. A template is applied to the femoral broach and seats itself against the buttress of the broach locking it into place. The broach is then reinserted into the intramedullary canal. When the template reaches the greater trochanter the sizer is adjusted to the rotational anteversion of the canal. The handle of the femoral broach is struck with a mallet until the template is imbedded into the proximal femoral neck intramedullary bone. A retractor facilitates reaming of the acetabulum through a small anterior incision. A proximal portion digs into the bone of the superior acetabulum to allow for retraction of soft tissues.
Owner:PETERSEN THOMAS D
Patient specific alignment guide for a proximal femur
ActiveUS20100286700A1Easy to introducePrecise positioningDiagnosticsProsthesisRight femoral headGrip force
An alignment guide for aligning instrumentation along a proximal femur includes a neck portion configured to wrap around a portion of the neck of the femur, a head underside portion configured to abut a disto-lateral portion of the femoral head and a medial head portion configured to overlie a medial portion of the head. Portions of the guide can have an inner surface generally a negative of the femoral bone of a specific patient that the guide overlies; such surfaces can be formed using data obtained from the specific patient. The neck portion can be configured to rotationally stabilize the guide by abutting and generating a first gripping force on the neck. The femoral head portions can be configured to grip the head portion of the femur and can support a bore guide that is configured to guide an instrument to the femur in a specified location and along a given axis.
Owner:SMITH & NEPHEW INC
Hip resurfacing surgical guide tool
ActiveUS20090222015A1Increase in sizeProgramme controlAdditive manufacturing apparatusArticular surfacesRight femoral head
Disclosed herein is a tool for guiding a drill hole along a central axis of a femur head and neck for preparation of a femur head that is the subject of a hip resurfacing surgery. In one embodiment, the tool includes a mating region and a guide hole. The mating region is configured to matingly receive a predetermined surface of the femur. The mating region and guide hole are positionally correlated or referenced with each other such that when the mating region matingly receives the predetermined surface of the femur, the guide hole will be generally coaxial with a central axis extending through the femur head and the femur neck.
Owner:HOWMEDICA OSTEONICS CORP
Method and apparatus for bone fixation with secondary compression
InactiveUS6890333B2Prevent movementInternal osteosythesisJoint implantsRight femoral headFemoral neck
Disclosed is a fracture fixation device, for reducing and compressing fractures in a bone. The fixation device includes an elongate body comprising a first portion and a second portion that are detachably coupled to each other. The first portion defines a helical cancellous bone anchor and the second portion defines a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device and is rotationally locked to the first portion. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. The second portion is then detached from the first portion.
Owner:DEPUY SYNTHES PROD INC
Tool
InactiveUS20070233136A1Prevent movementReadily fitted and removedSurgeryJoint implantsRight femoral headMedicine
An alignment guide for use in femoral head surgery comprising: support member comprising a cannulated rod; at least three locator arms at least a portion of at least one of which comprises a cantilever spring, each of said arms having a proximal end connected to the support member and a distal end having location means for location at the femoral head / neck junction, said at least three locator arms being spaced such that in use they extend around the femoral head and prevent relative movement between the alignment guide and the femoral head.
Owner:FINSBURY DEV
Method for locating the mechanical axis of a femur
ActiveUS20050015022A1Overcome influence of noiseImprove accuracySurgical navigation systemsPerson identificationRight femoral headComputer-assisted surgery
There is described a method for determining a mechanical axis of a femur using a computer aided surgery system having an output device for displaying said mechanical axis, the method comprising: providing a position sensing system having a tracking device capable of registering instantaneous position readings and attaching the tracking device to the femur; locating a center of a femoral head of the femur by moving a proximal end of the femur to a first static position, acquiring a fixed reading of the first static position, repeating the moving and the acquiring for a plurality of static positions; and locating the centre by determining a central point of a pattern formed by the plurality of static positions; digitizing an entrance point of the mechanical axis at a substantially central position of the proximal end of the femur; and joining a line between the entrance point and the center of rotation to form the mechanical axis.
Owner:ORTHOSOFT ULC
Laser triangulation of the femoral head for total knee arthroplasty alignment instruments and surgical method
InactiveUS20050070897A1Improve accuracyConsiderable morbidityDiagnostic recording/measuringSensorsArticular surfacesArticular surface
An Extramedullary system of alignment for total knee arthroplasties uses a small diode laser at the center of the knee adjustable to the longitudinal axis of the femur to triangulate the center of the femoral head. It utilizes a V-Frame positioning device that fits into the distal femoral intercondylar notch and is tangent to the articular surfaces of the notch. It is also parallel to the anterior femoral cortex by using a removal tongue flange that sits flat on the filed surface of the anterior cortex. This prepositions the Distal Femoral Resector Guide within a few degrees of the center of the femoral head. An adjustment knob on the V-Frame pivots the distal femoral resector guide to the exact center of the femoral head for that particular patient accomplishing fine adjustment of the longitudinal axis of the femur. There is only one position where the laser beam will go through the center of the target no matter where you position the leg and that is when the target's bulls-eye is exactly over the rotational center of the femoral head. Since the laser confirms this position, the surgeon is assured that the alignment is accurate. The Distal Femoral Resector Guide is then fixed to bone with fixation pins and the resection made with a power saw. The laser is moved to the target mount to act as a longitudinal “laser ruler” for the remainder of the operation.
Owner:PETERSEN THOMAS D
Tool
A jig for the application of a femoral head resurfacing prosthesis to a prepared femoral head wherein the jig comprises: at least one support arm having a proximal and a distal end; a jaw located at the distal end of the support arm and angled to the plane of the support arm; a static member located at the proximal end of the or each support arm; an applicator member associated with the static member and movable with respect thereto; and a connector means to enable the applicator member in use to interact with an outer surface of a femoral head resurfacing prosthesis; the applicator member comprising operating means to enable the applicator member to be moved from a first upper position to a second lower position.
Owner:FINSBURY DEV
Acetabular prosthesis assembly
InactiveUS20050071015A1Reduce wearEliminate wear and tearJoint implantsFemoral headsRight femoral headEngineering
An acetabular prosthesis assembly (1) comprising an acetabular cup (3) with a generally convex outer surface for engaging acetabular bone and a generally concave inner surface, an insert (10) capable of insertion in the cup (3) for receiving a femoral head component, wherein a wear liner (13) is disposed between the cup (3) and the insert (10), the liner (13) providing a wear inhibiting surface (4a).
Owner:PORTLAND ORTHOPAEDICS
Hip prosthesis with monoblock ceramic acetabular cup
InactiveUS7695521B2High strengthImprove toughnessBone implantJoint implantsRight femoral headMetallic materials
An improved hip prosthesis includes an acetabular cup bearing component constructed from a relatively hard and high strength ceramic material for articulation with a ball-shaped femoral head component which may be constructed from a compatible ceramic or metal material. In one form, the acetabular cup further includes a ceramic porous bone ingrowth surface adhered thereto for secure ingrowth attachment to natural patient bone.
Owner:AMEDICA A DELAWARE
Canine acetabular cup
ActiveUS7169185B2Increase flexibilityLife maximizationSurgeryJoint implantsPorous coatingRight femoral head
Owner:IMPACT SCI & TECH
Joint placement methods and apparatuses
InactiveUS20090164024A1Easy alignmentRange of motionDiagnosticsSurgical navigation systemsRight femoral headRange of motion
Systems and methods for determining placement of prosthetic components in joint including defining patient-specific frame of reference for joint, determining patient-specific postoperative range of motion of joint, evaluating patient-specific range of motion of joint, automatically planning placement of components balancing need for range of motion with prosthesis stability through bony coverage, and applying manual adjustments to the automatically planned placement of component by giving greater or lesser weight to need for range of motion or prosthesis stability through bony coverage. Apparatuses for defining center of prosthetic femoral head and axis of prosthetic femoral neck including primary cylinder, first alignment receptacle and second alignment receptacle, and a divot on exterior of primary cylinder, divot having normal parallel to longitudinal axis of second alignment receptacle and position of the divot being translated toward an opening of the first alignment receptacle on the primary cylinder. Methods for using apparatuses. Apparatus for mounting spatially tracked device to impactor for impacting prosthetic cup into reamed socket.
Owner:IGO TECH
Method for locating the mechanical axis of a femur
ActiveUS7427272B2Improve accuracyOvercome influenceSurgical navigation systemsPerson identificationRight femoral headComputer-assisted surgery
There is described a method for determining a mechanical axis of a femur using a computer aided surgery system having an output device for displaying said mechanical axis, the method comprising: providing a position sensing system having a tracking device capable of registering instantaneous position readings and attaching the tracking device to the femur; locating a center of a femoral head of the femur by moving a proximal end of the femur to a first static position, acquiring a fixed reading of the first static position, repeating the moving and the acquiring for a plurality of static positions; and locating the centre by determining a central point of a pattern formed by the plurality of static positions; digitizing an entrance point of the mechanical axis at a substantially central position of the proximal end of the femur; and joining a line between the entrance point and the center of rotation to form the mechanical axis.
Owner:ORTHOSOFT ULC
Pelvic waypoint clamp assembly and method
InactiveUS20050027303A1Accuracy can be to newBrevity can be to newDiagnosticsSurgical navigation systemsRight femoral headComputer-aided
A pelvic waypoint clamp assembly designed for external attachment to a patient's hips. The clamp assembly serves as a foundation for a fixation mount (i.e. a passive or active tracker) that, when in communication with conventional computer-assisted orientation systems, is used to determine, non-invasively, the center of the femoral head prior to or during knee arthroscopy.
Owner:LIONBERGER DAVID R +1
Tool
InactiveUS20100137924A1Stabilise toolEasy clampingJoint implantsSurgical sawsRight femoral headFemoral neck
In an alignment guide for use in femoral head surgery, a cannulated rod is supported by, and is adjustable with respect to, a support member of the alignment guide. The guide also includes two jaws, an anterior jaw and a posterior jaw, with each jaw having a proximal end connected to the support arm, and a distal end for clamping, in use, to the neck of the femur. At least one of the jaws is movable from a first open position to a second clamping position.
Owner:FINSBURY DEV
Method and apparatus for reducing femoral fractures
InactiveUS7258692B2Reducing a hip fracturePrevent escapeInternal osteosythesisJoint implantsRight femoral headHip fracture
An improved method and apparatus for reducing a hip fracture utilizing a minimally invasive procedure which does not require incision of the quadriceps. A femoral implant in accordance with the present invention achieves intramedullary fixation as well as fixation into the femoral head to allow for the compression needed for a femoral fracture to heal. To position the femoral implant of the present invention, an incision is made along the greater trochanter. Because the greater trochanter is not circumferentially covered with muscles, the incision can be made and the wound developed through the skin and fascia to expose the greater trochanter, without incising muscle, including, e.g., the quadriceps. After exposing the greater trochanter, novel instruments of the present invention are utilized to prepare a cavity in the femur extending from the greater trochanter into the femoral head and further extending from the greater trochanter into the intramedullary canal of the femur. After preparation of the femoral cavity, a femoral implant in accordance with the present invention is inserted into the aforementioned cavity in the femur. The femoral implant is thereafter secured in the femur, with portions of the implant extending into and being secured within the femoral head and portions of the implant extending into and being secured within the femoral shaft.
Owner:ZIMMER TECH INC
Non-spherical articulating surfaces in shoulder and hip replacement
An orthopedic device and method of use are provided that incorporate complex, non-spherical articulating surfaces to allow a greater available range of motion compared with existing artificial shoulder joint and artificial hip joints. According to some embodiments, complex, non-spherical articulating surfaces can be incorporated on a humeral head and / or glenoid of a shoulder prosthesis. In other embodiments, complex, non-spherical articulating surfaces can be incorporated on the acetabulum and / or femoral head of a hip prosthesis. These non-spherical surfaces can be used to adjust constraint, joint thickness, soft tissue tension, moment and arc of motion, and in doing so, influence motion.
Owner:HOWMEDICA OSTEONICS CORP
Femoral head prosthesis assembly and operation instruments thereof
InactiveUS20100168866A1Improve fitImprove the quality of operationSurgeryJoint implantsRight femoral headFemoral head prosthesis
A femoral head prosthesis assembly and operation instruments thereof. The operation instruments include a hollow femoral neck holder with a configuration adapted to the surface configuration of the femoral neck and a shaper blade for cutting a replacement end of the femur into a predetermined configuration. A guide tube is disposed on a top face of the femoral neck holder. A transverse slot is formed on the femoral neck holder for indicating a femoral head cutting line. The femoral head prosthesis assembly includes a cap body and an artificial femoral head. A root section of the cap body has an inner surface in conformity to the surface of the femoral neck. A top section of the cap body has a cross section adapted to that of the replacement end. The cap body can be precisely securely bonded with the replacement end of the femur.
Owner:SHIH GRANT LU SUN
Method and apparatus for reducing femoral fractures
InactiveUS20070225721A1Reducing a hip fractureHigh strengthInternal osteosythesisJoint implantsRight femoral headHip fracture
Owner:ZIMMER TECH INC
Method and apparatus for bone fixation with secondary compression
Disclosed is a fracture fixation device, for reducing and compressing fractures in a bone. The fixation device includes an elongate body. An axially moveable proximal anchor is carried by the proximal end of the fixation device and comprises a tubular sleeve that includes a plurality of graduations positioned on an outer surface of the tubular sleeve. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. In certain embodiments, the elongated body includes a distal anchor with a distal cutting tip.
Owner:DEPUY SYNTHES PROD INC
Apparatus and methods for bone surgery
InactiveUS20050059978A1Joint implantsNon-surgical orthopedic devicesRight femoral headLeft femoral head
The surgeon grasps the jig by its handle and manipulates the head of the jig through the patient wound and onto the femoral neck. The head of the jig includes jig location means in the form of an elongate rod which acts as a spacer. The spacer has an end which abuts the trochanteric fossa so as to position the slot of the jig at the required position, which is between 5 mm and 25 mm, and most preferably 15 mm, from the trochantic fossa. Additional jig location means are provided by a surface adapted to receive a bone formation. This surface is provided by contours on the base of the head which are adapted to mate with contours of the femur. The slot is oriented generally perpendicularly to the elongate dimension of the rod. The slot functions as a surgical tool guide means which is positioned by the jig at the correct position for osteotomisation of the neck. Advantageously, osteotomisation takes place while the femoral head is still disposed within the acetabulum.
Owner:INT PATENT OWNERS CAYMAN
Hip arthroplasty trialing apparatus with adjustable proximal trial and method
ActiveUS7425214B1Easy to determineOptimal hip mechanicsInternal osteosythesisJoint implantsRight femoral headFemoral stem
Apparatus and method are described for interoperatively determining, during a trailing procedure conducted in connection with total hip arthroplasty, a combination of neck length and femoral head offset required in a femoral component for establishing appropriate hip mechanics in a prosthetic hip joint to be implanted at an implant site. A trial femoral head is coupled for selective movement relative to a femoral stem component to move the trial femoral head longitudinally and laterally relative to a predetermined direction among selected combinations of trial distance and trial offset to evaluate hip mechanics and determine interoperatively an appropriate combination of trial distance and trial offset corresponding to the combination of neck length and femoral head offset required in the prosthetic hip joint.
Owner:HOWMEDICA OSTEONICS CORP
Method and apparatus for delivering an agent
A fracture fixation device is configured for reducing and compressing fractures in a bone and delivering bone treatment agents. The fixation device includes an elongate body comprising a first portion and a second portion that are detachably coupled to each other. The first portion defines a helical cancellous bone anchor and the second portion defines a distal end. An axially moveable proximal anchor is carried by the proximal end of the fixation device and is rotationally locked to the first portion. The device is rotated into position across the femoral neck and into the femoral head, and the proximal anchor is distally advanced to lock the device into place. The second portion is then detached from the first portion.
Owner:INTERVENTIONAL SPINE
Modular orthopaedic implant apparatus and method
Owner:DEPUY PROD INC
Femoral head assembly with variable offset
A proximal femoral head assembly having a variable offset that is selectively adjustable to conform to various anatomical conditions encountered during a femoral surgical procedure. The assembly includes a femoral head, a neck removeably connectable to the femoral head, and an adjustment mechanism. The adjustment mechanism provides the neck with a plurality of different femoral offsets with respect to a femoral hip stem.
Owner:ZIMMER INC
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