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75 results about "Femoral head" patented technology
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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.
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
Method and apparatus for hip femoral resurfacing tooling
ActiveUS20110004318A1Successful surface replacementAdditional toolJoint implantsFemoral headsMuscles of the hipFemoral prosthesis
Owner:HOWMEDICA OSTEONICS CORP
Tool
InactiveUS20060058810A1Improve stabilityEasy to storeDiagnosticsJoint implantsGuide wiresBiomedical engineering
A checking jig comprising: a body having an aperture therethrough which in use can be placed over a guide wire located in a well in the head of the femur; an arm extending from the body and shaped to extend around the head of the femur; a tip located on the end of the arm remote from the body said tip representing the diameter at which a particular size of sleeve cutter will cut; and means for adjusting the position of the tip between different positions representing different cut diameters.
Owner:FINSBURY DEV
Mr method and apparatus for determining coronal and sagittal image planes from an image data set of a knee joint
Owner:SIEMENS HEALTHCARE GMBH
Minimally invasive total hip replacement
ActiveUS9295556B2Minimally invasiveMinimize stress transferredInternal osteosythesisJoint implantsTotal hip replacementBiomedical engineering
A femoral implant for total hip replacement includes a cage screw, a femoral head and a base plate provided between the cage screw and the femoral head, to minimize the stress transferred from the femoral head to the bone. The femoral implant may optionally include devices for lateral fixation (for example, internal and / or external screws for lateral fixation) and a device for minimizing micro-motion that is integral to, and extends from, the cage screw.
Owner:ARTHREX
Artificial hip joint consisting of multilayer shell core composite structural components
Owner:SUZHOU DINGAN ELECTRONICS TECH
Method making it possible to produce the ideal curvature of a rod of vertebral osteosynthesis material designed to support a patient vertebral column
ActiveUS9693831B2Impart the appropriate curvature to a straight rod easilyEasily impartedImage enhancementImage analysisSpinal columnMedicine
Owner:MEDICREA INT SA
Inner acetabular liner for a dual mobility femoral head construct
A dual mobility femoral head construct has a secure acetabular shell received within an acetabular recess formed in a pelvis. An implantable prosthetic device is implantable after a failure of an originally installed articular head insert of an acetabular cup assembly. A hemispherical liner is formed from a cast cobalt-chromium alloy for thinness and elasticity. At least three spacers are annularly displaced about an outer diameter of the hemispherical liner to define a uniform cement thickness with the secure acetabular shell. Web shaped depressions are formed circumferentially in the outer diameter of the hemispherical liner to receive cement to resist lever out forces and to secure the cement bond with the secure acetabular shell. A replacement articular head insert is then received for dual mobility rotational movement in an inner diameter of the hemispherical liner. A femoral head implant is received for articulating movement in the articular head insert.
Owner:CHOUDHURY SAMBHU +3
Prostheses
A replacement ligament prosthesis including an elongate replacement ligament having a femoral end and a tibial end. The prosthesis includes a bar, which in use will extend between the medial and lateral condyles of a femur and across the intercondylar notch, and to which the femoral end of the elongate replacement ligament will be fixed. The prosthesis also includes a fixing means, which in use will fasten the tibial end of the elongate replacement ligament to the tibia.
Owner:FINSBURY DEV
Method and apparatus for total hip replacement
Methods and apparatus of the present invention provide for orthopedic total replacement of the hip while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation following the procedure. In an exemplary embodiment, the acetabulum is prepared and fitted with a prosthetic acetabular cup 702 and a prosthetic femoral head 1102 is fitted into the prosthetic acetabular cup 702. An intramedullary rod 1502 is inserted longitudinally into the femur. A prosthetic femoral neck 3102 is then inserted from a point along the side of the patient's body and into the side of the femur and through a pre-existing lateral bore in the intramedullary rod 1502 and through the remainder of the femur to join the prosthetic femoral head 1102. The methods and apparatus include structures and techniques for fixing the prosthetic femoral neck 3102 in relation to the intramedullary rod 1502.
Owner:IHIP SURGICAL LLC
Real-time visualization assistant positioning system for interior of hip joint in total hip replacement arthroplasty
ActiveCN103735303AReduce the difficulty of surgeryImprove the success rate of surgerySurgeryFemoral headsData acquisitionPositioning system
A real-time visualization assistant positioning system for the interior of a hip joint in total hip replacement arthroplasty is divided into two portions of hardware and software, wherein the hardware can be divided into three modules of a sensing data gathering module, a data merging and processing module and a data transmission module according to functions, and takes charge of gathering information of images, accelerated speed and the like, encapsulating the information into data of an image, and transmitting the data of the image to a computer or a flat computer, and the software can be divided into four portions of a data extraction portion, a position and posture measurement and calculation module, a data fusion portion and a three dimensional (3D) display module, and takes charge of figuring out a relative position and a relative posture of an artificial thigh bone and acetabulum through various sensing data, improving precision and reliability of measurement and calculation through fusion of redundant data, and showing the relative position and the relative posture to a doctor in 3D mode. The real-time visualization assistant positioning system for the interior of the hip joint in the total hip replacement arthroplasty presents movement status of the thigh bone in the acetabulum and a relative position relation of the thigh bone and the acetabulum in real time, assists the doctor in visually observing installation status of the artificial thigh bone with the acetabulum during the operation process, and greatly improves success rate and operation curative effects of the total hip replacement arthroplasty.
Owner:TSINGHUA UNIV
Proection pad for the trochantheric region and device comprising the pad
InactiveUS20050234380A1Improve protectionAccelerated dissipationFeet bandagesProtective garmentEngineeringGreat Trochanter
When people fall they tend to fall on their side. This can lead to them breaking their femur particularly at the head around the trochantheric region. The head of the femur includes a portion called the greater trochanter which projects outwards and which is covered by very little flesh. A pad for use in protecting trochantheric region of the body comprises at least two separate layers, a substantially rigid layer, and a layer of dense, closed-cell resilient foam material. The substantially rigid layer includes a protecting boss which, in use, is located in the region of the greater trochanter to increase the spacing between the outside of the rigid layer and the greater trochanter. Preferably, the layer of closed-cell foam material extends over a greater area than the substantially rigid layer so that the periphery of the rigid layer lies entirely within the periphery of the foam layer.
Owner:REMPLOY
Method of implanting a femoral neck fixation prosthesis
InactiveUS20050010232A1Reduce bone lossReduce the amount requiredInternal osteosythesisJoint implantsRight femoral headMedicine
A femoral neck fixation prosthesis and method of using same which reduces bone loss and the avoids the other shortcomings of the prior art by allowing the fixation of a stable femoral head replacement while reducing the amount of the femur which must be reamed for the insertion of the prosthesis. The preferred embodiment provides that the femoral head is attached to a fixation prosthesis, which extends coaxially through the canal of the femoral neck, into the femur, and is then attached to the opposite lateral wall of the femur. In this manner, the prosthesis serves to imitate the original structure of the femoral neck. No other support members, either crosspins or arms extending into the length of the femur, are required.
Owner:HOWMEDICA OSTEONICS CORP
Revision hip implants and prosthesis systems
Revision hip implants and prosthesis systems include femoral heads, cups, screws, bridges, and segmental prostheses for revision surgeries.
Owner:SMITH & NEPHEW INC
Thigh-bone positioning method for full knee-joint replacement operation by robot
InactiveCN1488321AMeet the precision requirementsThe principle is simpleDiagnosticsInstruments for stereotaxic surgeryThighSimulation
The invention provides a thighbone positioning method of robot full-knee joint replacement. First, abstract the problem to determine the center of thighbone into a geometric model to find the sphere center according to the known point on the sphere, combine three arbitrary points according to the collected spacing-socket central data of the thighbone, determine the coordinate information of the thighbone center by numerical calculation, then build the thighbone reference frame, then make the vectors on coordinate axes of three thighbone reference frame in the robot reference frame and ones on three coordinate axes of the robot reference frame compose a one-to-one relationship, and thus, find and build the corresponding relationship of the robot and thighbone reference frames, which accurately positions the thighbone.
Owner:SHANGHAI JIAO TONG UNIV
Implant assembly for proximal femoral fracture
ActiveUS8734448B2Quality improvementEasy to fixInternal osteosythesisJoint implantsThighProximal point
Owner:THAKKAR NAVIN N
Titanium alloy artificial hip joint with abrasion-proof ceramic coat and method for producing the same
InactiveCN101347358AImprove wear resistanceAvoid Galvanic Corrosion ProblemsJoint implantsHip jointsArtificial hip jointsWear resistant
Owner:HARBIN INST OF TECH
Method for determining biological force line of lower limbs in three dimensional space
InactiveCN108042217AHigh precisionMeasured in accordance withDiagnosticsComputer-aided planning/modellingKnee JointAnkle
The invention discloses a method for determining the biological force line of lower limbs in a three dimensional space. A caput femoris central point, a knee joint central point and an ankle joint central point are determined respectively in the three dimensional space, the caput femoris central point is used for three-dimensional reconstruction of the lower limbs of the human body, perfusion is conducted on collum femoris, caput femoris and greater trochanter after three-dimensional reconstruction, and then the geometric center of a perfusion body is found through Mimics or 3D Slicer; the knee joint central point adopts the center of a knee joint non-bony space perfusion body; the ankle joint central point adopts the center of an ankle joint non-bony space perfusion body. The method avoids the defects that in the prior art, the measurement result, obtained by visual inspection, protractor measurement and body X-ray measurement on a two-dimensional platform, of the force line of the lower limbs is greatly affected by interference, data has no standard and the subjectivity is high; the accuracy of the method is higher, and the method is more in line with the measurement of the forceline of the lower limbs.
Owner:成都真实维度科技有限公司 +1
Methods and devices for treatment of osteonecrosis of the femoral head with core decompression
Methods and devices for treatment of osteonecrosis of the femoral head with core decompression include a dowel adapted for placement into a core decompression channel of a femoral head. A cathode at the distal end of the dowel provides electrical stimulation of bone growth in the femoral head. A method of treating osteonecrosis of the femoral head involves placing a dowel having a cathode thereon into a core decompression channel of a femoral head in a state of osteonecrosis. Electrical current is supplied to the cathode for electrical stimulation of bone growth in the femoral head.
Owner:EUROPEAN BIOINFORMATICS INSTITUTE
Simulator for training medical personnel to perform uterine procedures
The surgical simulator contains a one-piece simulated uterus having a uterine fundus and body. A rigid hollow support base has a recess in its support surface that is complementary to the shape of at least a portion of the uterine fundus and body so that at least a posterior portion of the uterine fundus and body fit securely into the recess to retain the simulated uterus in position during use. Liquid can be introduced into the base to add weight, and the liquid can be heated to heat the simulated uterus to body temperature. The base can also provide a rigid hard tissue component that simulates the surface topography of the pelvic bone, portion of the spine, hip joints and heads of the femurs. The hard tissue component can be encased in an elastomeric material that simulates muscles and skin to practice obstetric procedures such as a C-section, insertion of an intrauterine tamponade balloon, insertion of an intrauterine contraceptive device, or insertion of compression sutures such as the B-Lynch suture.
Owner:SOUTER VIVIENNE +1
Novel artificial hip joint and manufacturing method thereof
ActiveCN102973335AReduce loosenessStress reliefJoint implantsHip jointsRight femoral headFemoral stem
The invention discloses a novel artificial hip joint and a manufacturing method thereof. The novel artificial hip joint comprises an advanced porous layer PCA (porous coated anatomic) spherical crown (1), an alloy acetabular cup (2), a metal ceramic acetabular lining (3), a metal ceramic femoral head (4), a metal handle (5), a collar (6), an advanced porous layer PCA plane ring (7), a metal handle guide pipe (8) and an advanced porous layer PCA net ring (9). According to the invention, the stress shielding of the artificial hip joint is removed and the proximal femoral osteopenia is prevented through femoral stem separation; the stress shielding on acetabular fossae is removed by increasing the pressure intensity; the osteolysis, the stem looseness and the femoral brittleness caused by wear debris are greatly reduced by using the metal ceramic acetabular lining and the femoral head with flexibility enhancement; and by improving the raw material selection and diffusion welding processes of the PCA structure part, the binding force of the PCA structure part and the bone tissues of a human body is increased, the postoperative problems of a patient are reduced, the comprehensive quality of the artificial hip joint is essentially improved, and the service life of the artificial hip joint is essentially prolonged to be longer than thirty or forty years at least.
Owner:刘昌星 +1
Adjustable multi-component hip orthosis
ActiveUS20130178775A1Increase lifting powerNon-surgical orthopedic devicesMachines/enginesThighKnee orthosis
A hip orthosis having a flexible waist band for conforming to the waist of a user can be attached at any position on the exterior of the waist band with adjustments in a vertical circumferential and rotational position for connecting a hip support unit at a desired position to maintain the head of a femur into the acetabulum of a user. The hip support unit is connected to a hinge member and an extension unit that is secured at a lower portion of the thigh wherein a thigh support unit can be adjusted so that a three point force system can be applied to the user.
Owner:ORTHOMERICA PRODS
Manufacturing method and product of intra-head femur stent
InactiveCN102178573AStrong enoughUniform internal structureJoint implantsFemoral headsBone tissueInsertion stent
The invention discloses a method for manufacturing an intra-head femur stent. The method manufactures the designed product by means of laser beam scanning controlled by a computer to sinter and superpose metal powder materials in layers. The essential microstructure of each part of the intra-head femur stent prepared by the method is formed of units of the same structure that are superposed, and each small unit is a rectangular hexagonal frame formed of 12 edges. The finished product of the stent has enough strength and meanwhile, is coarse in the surface of the body, provided with a regular porous structure inside the body and suitable for the growth of bone tissue.
Owner:北京畅想天行医疗技术有限公司
Durable resurfacing hip replacement device
ActiveUS8840675B2Minimal invasive hip arthroplastyInternal osteosythesisJoint implantsLong nailsIliac screw
A minimal invasive hip arthroplasty device is provided. The device includes a long nail portion, a lag screw portion, distal locking screws, and a resurfacing head. The long nail portion is inserted into a shaft body of a femur from a top portion of the femur and disposed in the femur. The lag screw portion engages and anchors at the long nail portion through a lag screw hole, and the lag screw portion is inserted into a neck of the femur. The distal locking screws queue through the shaft body of the femur perpendicularly and fix the long nail portion to the femur further. The resurfacing head includes a cup portion configured to cover a head of the femur and a fixing pin portion configured to be inserted into the head and the neck of the femur and engaging the lag screw portion through a resurfacing head hole.
Owner:OMNES MEDICAL INC
Intramedullary pin for insertion into the medullary space of a femur
ActiveUS8317788B2Prevent the surrounding tissue from being irritatedInternal osteosythesisJoint implantsIntramedullary rodTrochanter major
An intramedullary pin for insertion into the medullary space of the femur through the lateral compacta of the trochanter major. The pin has a proximal pin section and an adjoining distal pin section. Each pin section includes one or more bores for one or more bone screws. The proximal pin section has at least one bore running obliquely to the longitudinal axis, so that bone screws can be inserted through the bore into the head of the femur, or a screw can be inserted in the antegrade direction through the bore. The distal pin section is at least partly straight and the proximal pin section has a curvature in the lateral-posterior direction.
Owner:SYNTHES USA
Adjustable multi-component hip orthosis
ActiveUS8708941B2Increase lifting powerNon-surgical orthopedic devicesMachines/enginesThighKnee orthosis
Owner:ORTHOMERICA PRODS
Femoral gauge
Owner:MICROPORT ORTHOPEDICS HLDG INC
Mr method and apparatus for determining coronal and sagittal image planes from an image data set of a knee joint
In a method for determination of coronal and sagittal planes for the subsequent acquisition of new magnetic resonance slice images or the representation of magnetic resonance slice images from an existing image data set of a knee joint, starting from a data set representing a transversal slice image of the knee joint, the slice image is analyzed using at least one analysis algorithm to identify the medial and the lateral condyles of the femoral bone head shown as a transversal section and a point lying thereon in a section that defines the coronal plane. The sagittal plane proceeding perpendicular to the defined coronal plane is then determined. Coronal or sagittal slice images are then acquired or represented with orientations dependent on the identified planes.
Owner:SIEMENS HEALTHCARE GMBH
Device and method for allograft total hip arthroplasty
ActiveUS8439921B2Precise preparationBone implantJoint implantsTotal hip arthroplastyTissue engineered bone
Owner:JAMALI AMIR
Artificial joint femoral stem
InactiveCN104874019APrevent looseningImprove fusion effectCoatingsProsthesisHuman bodyArtificial joints
The invention discloses an artificial joint femoral stem which comprises a joint femoral stem body and at least one titanium alloy layer on the partial outer surface of the end part, close to a femoral ball head, of the joint femoral stem body, wherein the titanium alloy layer adopts a sponge hole structure; walls of holes in the sponge hole structure are made of titanium alloy materials; the holes are distributed in an irregular three-dimensional net-shaped manner in the thickness direction so as to form communicated hole channels. Integration of the artificial joint femoral stem and human body bone tissue is increased, so that looseness between the artificial joint femoral stem and the bone is effectively prevented.
Owner:ZHONGAO HUICHENG TECH CO LTD
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