Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
258 results about "Artificial hip joints" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
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
Twin-shelled artificial hip joint and its manufacture
InactiveUS6045583AHigh degree of polymerizationReduce wear rateJoint implantsCoatingsArtificial hip jointsCoxal joint
The invention shows a hip joint socket and its manufacture, with the hip joint socket including a thin walled metallic outer shell with anchoring pins which is firmly connected to an inner shell of plastic. Since the bearing surface of the inner shell is not produced until after the assembly, a high accuracy of shape of the bearing surface results together with a relatively elastic outer shell and with good anchoring aids for a primary anchoring.
Owner:SULZER ORTHOPAEDIC
Femoral stem for artificial coxal articulation and method for processing neck portion thereof
ActiveUS20050267590A1Maximize rangeMaintaining cross sectional areaJoint implantsFemoral headsArtificial hip jointsFemoral stem
Disclosed are a femoral stem for artificial coxal articulation, in which portions of the femoral stem interfering with and contacting an insertion in the joint movement of the femoral stem are removed from the femoral stem so as to maximize the range of the joint movement thereof while maintaining the cross sectional area thereof, and a method for processing a neck portion of the femoral stem. The method includes cutting symmetrical portions of the outer circle of a circular rod to form cutting planes inwardly inclined such that the cutting planes contact a virtual inner circle having the same center as that of the outer circle; and rounding a portion between the cutting planes along the inner circle so that the inner part of the outer circle is shorter than the outer part of the outer circle.
Owner:CORENTEC
Biomimetic artificial hip joint with internal growth function
ActiveCN105105875AImprove tribological propertiesImprove fault toleranceJoint implantsHip jointsArticular surfacesBiomechanics
The invention discloses a biomimetic artificial hip joint with an internal growth function. The joint is composed of an artificial cartilage layer, an interface bonding layer and a porous bracket, wherein the artificial cartilage layer and the porous bracket have elliptic surfaces; the surface wrapping angle of the joint is 60-120 degrees; when the wrapping angle is 80-120 degrees, 3-6 convex columnar bodies, which are uniformly distributed, are designed on the inner surface of a prosthesis along the peripheral direction; a porous coating with biological activity is prepared on the outer surface of a femoral component and materials of the coating have gradient changes from inside to outside; the porous bracket is designed into a porous structure with gradient according to a finite element optimization result, and the pore diameter is 300-800 microns; the porosity is 20%-85%. According to the biomimetic artificial hip joint disclosed by the invention, bone mass and biomechanical characteristics of thigh bones can be kept to the greatest extent; the biomimetic artificial hip joint has good mechanical properties and tribological properties; the growth of bone cells is induced or promoted so as to guarantee effective interface bonding intensity between a prosthesis implantation material and a natural bone, the stability of the planted prosthesis is improved and the service life is prolonged.
Owner:XI AN JIAOTONG UNIV
Artificial hip joint consisting of multilayer shell core composite structural components
The invention discloses an artificial hip joint consisting of multilayer shell core composite structural components. The artificial hip joint comprises an artificial acetabulum and an artificial thigh bone. The artificial hip joint is characterized in that: the artificial acetabulum has a multilayer shell core composite structure and consists of a ceramic acetabulum lining, a transition layer, a porous metal, a porous alloy or a porous toughened ceramic acetabulum shell; the artificial thigh bone has a multilayer shell core composite structure and consists of a ceramic spherical shell layer, a transition layer and a toughened ceramic inner core. The ceramic acetabulum lining and the spherical shell layer of the artificial thigh bone have high hardness, corrosion resistance and abrasion resistance; the artificial acetabulum shell layer and the inner core of the thigh bone have high toughness and impact resistance; and the transition layers are made of gradient composite materials between the materials for the shell layer and the inner core layer, and have the functions of increasing the bonding strength between the shell layer and the inner core layer, reducing the interface stressbetween the shell layer and the inner core layer and the like. The artificial hip joint has the characteristics of long service life, high reliability, high performance and the like.
Owner:SUZHOU DINGAN ELECTRONICS TECH
Locking ring for liner of acetabular cup
InactiveUS7267693B1Easy to disassembleEasy to captureJoint implantsAcetabular cupsArtificial hip jointsCoxal joint
An artificial hip joint is provided including a generally hemispherical acetabular cup with a generally hemispherical liner mated within the acetabular cup and with a locking ring to secure the liner within the acetabular cup. The acetabular cup is adapted to be secured within a hip bone. The liner includes a hemispherical inside surface for pivotably supporting a head at an upper end of a femur. The locking ring resides within an annular groove in the acetabular cup and an annular seat in the liner. The locking ring includes a captured end and a free end. The captured end includes a slot which cooperates with a post in the acetabular cup to slidably hold the captured end to the acetabular cup. The locking ring removably attaches the liner to the acetabular cup.
Owner:ORTHOPEDIC SOURCE
System, method and tool for ensuring correct insertion of an artificial hip joint
InactiveUS20090076519A1Avoid accidental movementEasy to fixJoint implantsDiagnostic recording/measuringArtificial hip jointsPhysical medicine and rehabilitation
The present invention relates to the area of orthopaedic surgery, and in particular to a system for ensuring that prosthesis components or parts thereof are inserted correctly upon implantation of artificial hip joints and to methods for ensuring correct insertion of the parts of an artificial hip joint or femoral prosthesis during surgery. This system comprises a tool (30) for controlling the mutual positioning of the main components in a hip prosthesis, a measuring device (40), for measuring the distance between two supports connected to the patient's pelvis and leg, and connection members (46, 47) arranged at said measuring device, where said connection members are adapted to interact with receptors at said supports.
Owner:OM SURGICAL UK
Stem of artificial hip joint
A stem of an artificial hip joint is capable of removing a gap that may be formed between a proximal portion of a femur and a backside of the stem. The stem has an upper end portion 11 to face a proximal side and a backside 15 to face a greater trochanter 33 and is adapted for insertion into, and fixation to, a medullary space of a femur, and the stem has a through bore 17 opened both to said upper end portion and the vicinity of proximal end of said backside.
Owner:KOSHINO TOMIHISA
Ball joint or cap implant for an artificial hip joint
InactiveUS20090112330A1Easy to rinseEasy to replaceJoint implantsFemoral headsArtificial hip jointsSacroiliac joint
A ball joint or cap for an artificial hip joint is described that is suitable for carrying out a rotating or pivoting motion in an artificial hip joint socket, with a gap being provided for a natural fluid film (synovial fluid) between itself and the artificial hip joint socket, and with regular depressions without interconnecting channels between them being recessed in areas of its surface. It is proposed that its surface in the polar area is smooth and without depressions, that an area is provided in an intermediate area between the smooth polar area and its equator, in which depressions are recessed with hole widths between 1.0 mm to 3.0 mm, that adjacently in the intermediate area in the direction of its base edge, further depressions are recessed, the hole widths of which become steadily smaller, the closer they lie to the base edge, with hole widths between 0.5 mm and 1.0 mm.
Owner:ORTHODYNAMICS GMBH
Preparation method of hydroxylapatite/titanic oxide composite biological coatings
The invention provides a method for preparing a hydroxyapatite / titanium dioxide composite bioactive coating on the surfaces of medical metals such as a titanium alloy, and the like, and belongs to the technical field of the preparation of bioactive coatings on the surface of the titanium alloy. The composite coating is prepared by preparing precursor sols of HA and TiO2 respectively, then mixing the precursor sols of the HA and the TiO2, and performing aging, coating, drying and heat treatment. The coating has high bioactivity, low cost of preparation technology, and high bonding strength with a matrix, is applicable to the preparation of surface coatings of various complicated geometric structures, and can be used for surface modification of surgical implants such as artificial hip joints and dental implants as well as orthopedic instrument products.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Composite material for repairing deletion of tooth and human hard tissues and its preparation
InactiveCN1582884AImprove mechanical propertiesTranslucentImpression capsDentistry preparationsArtificial hip jointsHard tissue
A composite material for reparing tooth and human hard tissue is prepared through preparing the partly sintered ceramics, surficial coupling, and vacuum dipping in resin while in-situ polymerizing.
Owner:李石保
Artificial hip joint without a shaft
InactiveUS20060217720A1Strengthen the relative fixedHigh strengthInternal osteosythesisDiagnosticsArtificial hip jointsCoxal joint
The invention provides an artificial hip joint without a shaft which includes an enhancing bone plate for supporting the femur, the plate having more than one hole on its surface, fixing elements for fixing the plate on the surface of the femur extending through these holes respectively; an enhancing bone screw which is expended through the plate and the femur; a center bone screw which is screwed with the enhancing bone screw; the other end of the center bone screw extending out of the femur neck; and a femur neck protecting device for protecting the femur neck, the device being fixed on the end which is not connected with the enhancing bone screw. With the fixation of the center bone screw, the protecting device can ride against the surface of the femur tightly so that it can protect the remaining bone cutting off the diseased or damaged. It can also enhance the rigidity and stabilization of the bone which is not well in function by the support of the enhancing bone plate.
Owner:CHIENG POONUNG
Femoral Stem for Artificial Hip Joint and Artificial Hip Joint Including the Same
ActiveUS20090164026A1Suitable for treatmentEasy to fixJoint implantsFemoral headsArtificial hip jointsMedicine
A femoral stem 2 for artificial hip joint is provided that is capable of tightly fixing a greater trochanter and is suitable for treatment of transcervical fracture where it is necessary to fix the greater trochanter. The femoral stem 2 comprising: a stem member 20 including a distal part 21 of the stem member which is inserted in a medullary cavity of a femur and fixed therein and a proximal part 22 of the stem member which has a neck 26 for fixing an artificial head and is positioned at a proximal end of the distal part, the distal part and the proximal part being integrated or separable; a plate fixing portion 36 which is detachably attached at a top of the proximal part; and a greater trochanter plate 3 for depressing the greater trochanter 71, the greater trochanter being fixed to the plate fixing portion 36 at a certain angle or fixed to the plate fixing portion so as to adjust an angle. Since the greater trochanter plate 3 is fixed onto the femoral stem 2 of the present invention, the greater trochanter is tightly fixing and thus the fixation can be stabilized. Furthermore, since the greater trochanter plate 3 is fixed at the top of the proximal part 22, the greater trochanter plate 3 covers the top of the greater trochanter 71 when the greater trochanter 71 is fixed. Therefore upward displacement of the greater trochanter by a gluteus medius musculus can be effectively suppressed.
Owner:MIKAMI HIROSHI +1
Artificial hip joint fatigue testing device
The invention relates to an artificial hip joint fatigue testing device. The artificial hip joint fatigue testing device comprises a framework, a moving mechanism, a loading mechanism and a test piece, wherein the framework is connected with the moving mechanism by screws; the loading mechanism is fixed on the framework; the test piece is positioned between the loading mechanism and the moving mechanism; the loading mechanism is internally provided with a force sensor and a thread adjusting mechanism, and is used for determining and adjusting load force on line; a motor drives a connecting rod mechanism so as to enable a middle moving platform to move up and down in a reciprocating mode; a spring is loaded on the upper part of the middle moving platform so as to test the prosthetic body fatigue performance in the motion state. The testing device provided by the invention can simulate the motion situation of a human body by the reciprocating motion, can test the artificial hip joint prosthetic body fatigue performance under different load conditions, and is low in manufacturing and maintaining cost, convenient to operate and easy to popularize and apply.
Owner:SHANGHAI UNIV
Compound movement type artificial hip joint frictional wear experiment equipment
InactiveCN104833603ASimple structureEasy to replaceInvestigating abrasion/wear resistanceArtificial hip jointsRight femoral head
The invention relates to compound movement type artificial hip joint frictional wear experiment equipment. The experiment equipment comprises a frame, a loading device and a compound movement mechanism. The hydraulic loading device is installed on the top surface of the frame, and the lower end of the loading device is provided with a femoral head upper sample. The compound movement mechanism is composed of a swinging mechanism for achieving forward-backward swinging and a rotation mechanism for achieving left-right rotation. The swinging mechanism and the rotation mechanism are connected through a swing table, the rotation mechanism is fixed on the swing table of the swinging mechanism, and the swing table is connected to the frame through two supporting seats. The provided experiment equipment can imitate the actual movement state of human hip joint and work environment, and has the advantages of simple structure, convenient application, and reliable experiment results.
Owner:UNIV OF JINAN
Nanoparticle-reinforced polyether-ether-ketone joint prosthesis material as well as preparation method and application thereof
The invention discloses a nanoparticle-reinforced polyether-ether-ketone joint prosthesis material as well as a preparation method and application thereof. Nanoparticles filled in polyether-ether-ketone serve as crosslinking points to form a polymer composite material of a net crosslinking structure; the composite material is used as manual hip joint in a joint prosthesis; the inner surface layer of the hip joint is made of a nanoparticle-reinforced polyether-ether-ketone joint prosthesis material, and the thickness of the inner surface layer is 2-4mm; and the outer surface layer of the hip joint is made of polyether-ether-ketone, and the thickness of the outer surface layer is 8-10mm. The nanoparticle / PEEK (polyether-ether-ketone) composite material prepared by the preparation method has low nanoparticle filling amount which is less than 10wt%. The abrasive resistance of the preferable composite material is improved by 8 times compared with that of the pure PEEK, a friction coefficient is lowered to 1 / 2 of that of the pure PEEK; the hardness and wettability of the nanoparticle-reinforced PEEK composite material are improved, and abrasion on friction couples can be lightened.
Owner:NANJING UNIV OF SCI & TECH
Multi-workbench detecting and experimenting device for artificial hip joint abrasion
ActiveCN102871778AImprove compatibilityImprove work efficiencyJoint implantsArtificial hip jointsPhysical medicine and rehabilitation
The invention discloses a multi-workbench detecting and experimenting device for artificial hip joint abrasion. The multi-workbench detecting and experimenting device for artificial hip joint abrasion comprises a frame, an artificial hip joint driver and a controller. The artificial hip joint driver which is an artificial hip joint motion synthesizing mechanism comprises an artificial hip joint simulating workbench module, a tester workbench transmission module and a tester workbench loading module. Actual application conditions of the artificial hip joint can be reproduced authentically and reliably and abrasive particles similar to actual applications can be generated. The detecting and experimenting device has multiple workbenches, driven by a single motor, for testing a plurality of artificial hip joints simultaneously and has high compatibility, and is applicable to experiments on different specifications of artificial hip joints, high in work efficiency, low in manufacturing cost, and easy to operate.
Owner:SHANGHAI UNIV
Production method of acetabulum navigation template
InactiveCN103230302ASolve the problem of difficult implantationIncrease contactDiagnosticsSurgical navigation systemsArtificial hip jointsComputed tomography
The invention discloses a production method of an acetabulum navigation template. The production method comprises building a three-dimensional model of a pelvis according to computed tomography scanning data of the pelvis; extracting surface point clouds of an acetabulum in the three-dimensional model; fitting the surface point clouds to an optimal sphere and enabling a sphere centre coordinate to be a rotation center coordinate of the acetabulum; utilizing a triangle function relation and the rotation center coordinate of the acetabulum to calculate to obtain a direction vector of a navigation tube in the acetabulum navigation template; and utilizing a rapid prototyping technology to produce an entity of the acetabulum navigation template. The production method of the acetabulum navigation template has the advantages of enabling the acetabulum navigation template entity which is highly matched with acetabulum fossa ovalis of patients to be produced; enabling physicians to perform planning and simulation according to actual conditions of skeletons of the patients before operation; enabling a convenient contact to be established between a preoperative plan and intraoperative operation; and providing a new method and an effective auxiliary means for accurate implantation of acetabular cup prosthesis in artificial hip replacement.
Owner:陆声 +1
Artificial hip joint dynamic fatigue wear sample clamp and tester
InactiveCN103257076ASimple structureEasy to installInvestigating abrasion/wear resistanceArtificial hip jointsRight femoral head
The invention relates to an artificial hip joint dynamic fatigue wear sample clamp and a tester. The clamp comprises a femoral head sample fixing part for driving femoral head samples to rotate and an acetabulum sample fixing part, wherein the acetabulum sample fixing part comprises a base and an inclined tray; and acetabulum samples are mounted on the base which is arranged in the inclined tray. The tester comprises a femoral head sample rotating part, a sample clamp and a sample loading part, which are positioned at the upper part of the tester, wherein the femoral head sample rotating part comprises a rotating motor and an upper spindle rotating under the driving of the motor; tail conical holes for mounting the femoral head samples are formed in the lower end part of the upper spindle; and the sample loading part comprises a loading motor, a speed reducer and a loading drive part for applying load to the acetabulum samples. The test clamp is simple in structure and convenient to install. The tester has the advantages that the structure is advanced, the control is accurate and the test data reliability is high.
Owner:UNIV OF JINAN
Stem of artificial hip joint
A stem of an artificial hip joint is capable of removing a gap that may be formed between a proximal portion of a femur and a backside of the stem. The stem has an upper end portion to face a proximal side and a backside to face a greater trochanter and is adapted for insertion into, and fixation to, a medullary space of a femur. The stem has a through bore opened both to the upper end portion and the vicinity of proximal end of the backside.
Owner:KOSHINO TOMIHISA
Special laser selecting area melting equipment for directly manufacturing metal orthopedics implant
ActiveCN105945282AImprove powder utilizationImprove cleanlinessAdditive manufacturing apparatusIncreasing energy efficiencyGratingOxygen
The invention discloses special laser selecting area melting equipment for directly manufacturing a metal orthopedics implant. The equipment is characterized by comprising a forming system, a powder recovery system, a powder paving system, a laser transmission system, a dust filter and water / oxygen purification double-circulation system, and a sealing cavity; the forming system, the powder recovery system and the powder paving system are all positioned in the sealing cavity; the laser transmission system is positioned at the upper part of the sealing cavity; the dust filter and water / oxygen purification double-circulation system is positioned out of the sealing cavity; the forming system includes a forming cylinder, a forming cylinder piston, a ball screw, a servo motor and a grating ruler; a heating copper plate, a water cooling system and a temperature sensor are arranged in the forming cylinder piston; the powder paving system paves powder by an upper powder paving mode; and the forming process is performed under argon protection, and is provided with the dust filter and water / oxygen purification double-circulation system. The equipment is high in atmosphere cleanness of the forming cavity and high in forming part size precision, can form such bionic structures as porous structures and biological channels, and is suitable for quick and personalized customization of artificial hip joints.
Owner:THYTEC SHANGHAI
Liner for acetabular cup
InactiveUS7294150B1Inhibit migrationIncrease the diameterJoint implantsAcetabular cupsArtificial hip jointsCoxal joint
An artificial hip joint is provided featuring a liner with a deforming seal which quickly and easily seals a top bore in an acetabular cup of the artificial hip joint, such as to prevent the passage of fluid, wear debris or other material through the top bore in the acetabular cup. The acetabular cup is adapted to be secured to a hip bone and is generally hemispherical and sized to receive the generally hemispherical liner therein. The liner is secured to the acetabular cup by a locking ring which nests within both an acetabular groove in the annular cup and an annular seat in the liner. The liner provides a hemispherical bearing surface for a head at an upper end of a femur.
Owner:ORTHOPEDIC SOURCE
Method and system for acquiring attitude of acetabulum and femoral head in real time during hip joint replacement procedure
ActiveUS20150289890A1Increase success rateImproving efficiency and efficacyDiagnosticsFemoral headsSensor arrayRight femoral head
A method and system for acquiring the attitudes of an acetabulum and a femoral head in real time during an artificial hip joint replacement procedure; during hip joint replacement, a pressure sensor and / or a touch sensor are disposed at each pressure point concerned for a femoral head prosthesis test mould, forming a sensor array (1); the sensor array (1) acquires the contact and stress conditions between the femoral head prosthesis test mould and the acetabulum, and sends out a signal; and a receiving terminal receives and displays the signal on a display module, and acquires the simulated attitudes of the acetabulum and the femoral head. The system comprises a sensor array (1), a necessary peripheral circuit, and a signal receiving and display device for receiving and displaying the signal sent by the peripheral circuit. The present invention can accurately simulate the presented attitude of the femoral head prosthesis during hip joint replacement procedure, so that a doctor can intuitively see the position and movement condition of the femoral head prosthesis during the procedure, thus improving the success rate and curative effect of the hip joint replacement procedure.
Owner:TSINGHUA UNIV
UHMWPE (Ultra High Molecular Weight Polyethylene) artificial joint with surface wear-resistant layer and preparation method of same
InactiveCN103007356AResistant to fatigue crack growthHas significant advantages: the prepared by the present invention has the ability to resist fatigue crack growthJoint implantsCoatingsArtificial hip jointsSurface layer
The invention discloses a UHMWPE (Ultra High Molecular Weight Polyethylene) artificial joint with a surface wear-resistant layer and a preparation method of the UHMWPE artificial joint. Vacuum irradiated UHMWPE or a composite material thereof is used as a wear-resistant surface layer for forming a polymer composite material with a lamellar structure; and the material is applied to an artificial hip joint and an artificial knee joint tibia pad in the field of artificial joints, wherein the wear-resistant surface layer is formed by the vacuum irradiated UHMWPE or the composite material thereof and a matrix layer is prepared from unirradiated UHMWPE. Compared with the wear resistance of the unirradiated pure UHMWPE, the wear resistance of the UHMWPE artificial joint material with the surface wear-resistant layer, which is prepared by the invention, is improved for three times under the condition that a calf serum knee joint is worn; the matrix material keeps the related characteristics of original UHMWPE; physical impact resistance capacity of the material can be improved; and service life of the artificial joint is prolonged.
Owner:NANJING UNIV OF SCI & TECH
Ball joint or cap implant for an artificial hip joint
InactiveUS7771485B2Good rinsing and replacementJoint implantsFemoral headsArtificial hip jointsEngineering
A ball joint or cap for an artificial hip joint is described that is suitable for carrying out a rotating or pivoting motion in an artificial hip joint socket, with a gap being provided for a natural fluid film (synovial fluid) between itself and the artificial hip joint socket, and with regular depressions without interconnecting channels between them being recessed in areas of its surface. It is proposed that its surface in the polar area is smooth and without depressions, that an area is provided in an intermediate area between the smooth polar area and its equator, in which depressions are recessed with hole widths between 1.0 mm to 3.0 mm, that adjacently in the intermediate area in the direction of its base edge, further depressions are recessed, the hole widths of which become steadily smaller, the closer they lie to the base edge, with hole widths between 0.5 mm and 1.0 mm.
Owner:ORTHODYNAMICS GMBH
Titanium-containing amorphous carbon high-hardness andwear resistant thin film
InactiveCN101596799AImprove mechanical propertiesImprove wear resistanceVacuum evaporation coatingSputtering coatingCarbon layerGyroscope
The invention discloses a titanium-containing amorphous carbon high-hardness and wear resistant thin film. A pure titanium bottom layer, a carbon-titanium complex gradient transition layer and a titanium-containing amorphous carbon layer are deposited on a metal matrix in sequence from the bottom to the top; TiC crystal grains with diameters ranging 5-20nm are dispersively distributed in the titanium-containing amorphous carbon layer; wherein the percentage of carbon atoms is 74.2at.%-98at.%, and the atom percentage of titanium is 2-23.8at.%.The thin film has the advantages of high hardness, good toughness, low friction coefficient, high wear resistance, and good combination strength with the metal matrix, thereby being applied to the surfaces of bearings, gyroscopes, gears and metal cutting tools, so as to improve the service life of the devices; and the thin film also can be applied in biomedicine, such as artificial hip joint surface, and the like.
Owner:ZHEJIANG UNIV
Apparatus for preparing femoral cavity using vibration under operation of fixing guide unit
InactiveUS7189241B2High shape accuracyPrecise cuttingInternal osteosythesisJoint implantsInterference fitArtificial hip joints
Disclosed herein is a femoral broaching apparatus for use in preparing a femoral cavity for implantation of a prosthetic joint in surgical orthopedic artificial hip joint replacement arthroplasty procedures. The apparatus comprises a fixing guide unit fixed in the femoral cavity by an interference fit, a cavity preparing broach coupled to the fixing guide unit in a longitudinally movable manner, and a vibration-generating unit coupled to the cavity preparing broach for allowing the cavity preparing broach to perform the preparing of the femoral cavity under operation of the fixing guide unit. According to the present invention, a femoral cavity having an intended accurate shape can be easily prepared using mechanical vibration rather than a manual operation, thereby ensuring operational convenience. Further, since the preparing of the femoral cavity is performed under axial guiding operation of a fixing guide unit, the shape accuracy of the resulting femoral cavity as well as the positional accuracy of a tool, such as a surgical broach, can be improved.
Owner:KOREA ADVANCED INST OF SCI & TECH
Multifunctional tribology experimental device
The invention relates to a multifunctional experimental device for tribology, comprising a machine station frame and a variable speed motor. The invention is characterized in that: a middle cross beam is arranged on the machine station frame, and a rotary tray is pivotally inserted in the middle cross beam through a planar bearing; a downward extended rotating shaft of the rotary tray is connected with the variable speed motor through a coupling, while the tray at the upper end is connected with a lower turntable fixture of an experiment module; a loading plate is arranged in the top part of the machine station frame, a loading top compression leg is fixedly connected with the center of the loading plate, and the loading top compression leg is connected with an upper axle pin fixture of the experiment module. The experimental device has the advantages of the use for artificial hip joint simulation and experiment and pin-disk type friction experiment, and strong compatibility, low cost and easy operation.
Owner:JIANGSU GREEN LEAVES MACHINERY
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
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
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com