42 results about "Joint stability" patented technology

Apparatus and surgical techniques provide alternative cutting fixtures and other features to improve bone resection accuracy and joint stability. According to one embodiment, stabilizers are removably attached to a cutting guide to temporarily lengthen the surface against which a saw or other cutting device rests. Another embodiment provides differently shaped saw blades, having curved distal ends and right-angle bends applicable to box cuts of the type associated with cruciate sacrifice knee-replacement surgery. Methods are also disclosed whereby the box cuts, distal and posterior augment cuts may be approached from a distal perspective, both laterally and medially. A different embodiment provides a trial / cutting guide having flat surfaces as opposed to curved surfaces adapted for articulation within a joint. Yet a further alternative embodiment teaches a device for determining the joint line relative to a tibia using the fibula as reference.

An ankle arthrodesis fusion plate is provided that affords compression across the tibio-talar joint to promote bone fusion and joint stability.

Apparatus and surgical techniques provide alternative cutting fixtures and other features to improve bone resection accuracy and joint stability. According to one embodiment, stabilizers are removably attached to a cutting guide to temporarily lengthen the surface against which a saw or other cutting device rests. Another embodiment provides differently shaped saw blades, having curved distal ends and right-angle bends applicable to box cuts of the type associated with cruciate sacrifice knee-replacement surgery. Methods are also disclosed whereby the box cuts, distal and posterior augment cuts may be approached from a distal perspective, both laterally and medially. A different embodiment provides a trial / cutting guide having flat surfaces as opposed to curved surfaces adapted for articulation within a joint. Yet a further alternative embodiment teaches a device for determining the joint line relative to a tibia using the fibula as reference.

The invention discloses a novel bracket type blood vessel, which comprises a trunk and a branch part, wherein the trunk comprises at least one embedded branch which extends towards the inner wall of the trunk and is communicated with the trunk; the port of the embedded branch is trumpet-shaped; and after a bracket is released, the released trunk can be prevented from damaging a branch blood vessel, and the introducing joint stability of a split module is enhanced simultaneously. The novel bracket type blood vessel further comprises at least one epitaxial branch which extends outwards.

A hollow turbine engine component with complex internal features can include a first region and a second, high resolution region. The first region can be defined by a first ceramic core piece formed by any conventional process, such as by injection molding or transfer molding. The second region can be defined by a second ceramic core piece formed separately by a method effective to produce high resolution features, such as tomolithographic molding. The first core piece and the second core piece can be joined by interlocking engagement that once subjected to an intermediate thermal heat treatment process thermally deform to form a three dimensional interlocking joint between the first and second core pieces by allowing thermal creep to irreversibly interlock the first and second core pieces together such that the joint becomes physically locked together providing joint stability through thermal processing.

Disclosed is a method and apparatus for repeatably positioning a forearm at a plurality of angular positions for medical analysis. A forearm of a patient is positioned in a support channel within reach of a rotatable handle. The handle can be locked in a number of angular positions, providing a counteractive force as the handle is rotated. The patient rotates and applies a torque force to the handle at selected rotational angles. The forearm and wrist can be scanned in these locked position, and applied torque can be measured to evaluate joint stability.

A hollow turbine engine component with complex internal features can include a first region and a second, high resolution region. The first region can be defined by a first ceramic core piece formed by any conventional process, such as by injection molding or transfer molding. The second region can be defined by a second ceramic core piece formed separately by a method effective to produce high resolution features, such as tomo lithographic molding. The first core piece and the second core piece can be joined by interlocking engagement that once subjected to an intermediate thermal heat treatment process thermally deform to form a three dimensional interlocking joint between the first and second core pieces by allowing thermal creep to irreversibly interlock the first and second core pieces together such that the joint becomes physically locked together providing joint stability through thermal processing.

The stability of an animal joint, especially a knee, is assessed with an arrangement having track arranged about perpendicular to the axis of the distal portion; a cart slidably engaged to the track; a fork positioned on the cart; a support adapted to receive the distal linear portion, the support connected to the fork; a lever arm connected to the support, the lever arm positioned to rotate the support about the axis of the distal portion; and at least one instrumented handle, the instrumented handle detachably engages at least one of the cart and the lever arm. In some embodiments, the fork can rotate freely on the cart. Additionally, in various embodiments, the cart may be selectively locked at a position along the length of the track. In various embodiments, the arrangement further comprises: a bracket rigidly attached to the distal portion and positioned between the support and the joint; and the at least one instrumented handle detachably engages the bracket.

The invention discloses a bionic pulling and pressing body system design method. According to the method, through space contact hard components, a flexible component system which is distributed in a multi-dimension topological structure manner is jointly composed of active flexible components integrating driving and transmission and passive flexible components maintaining joint stability. A bionicrobot designed through the method has high flexibility due to high flexibility of the passive flexible components and the active driving type flexible components in the structure, collisions and impacts between connecting components of the bionic robot are reduced, the service life of the components is prolonged, and meanwhile the man-machine physical contact safety is improved. The active driving type flexible components in the bionic pulling and pressing body system serve as a driver for providing power for the whole system, and under assistance of the passive flexible components distributed in a topological structure manner, rapid transmission, distribution and management of energy are conducted; and meanwhile, the hard components are driven to move, energy consumption is reduced, anda self-stability, self-balance and impact-resistant bionic pulling and pressing body system is formed.

The invention discloses a tooth jaw three-dimensional digital modeling method based on temporal-mandibular joint stability. The tooth jaw three-dimensional digital modeling method comprises the following steps of using a three-dimensional scanner for scanning to obtain a tooth jaw three-dimensional digital model of a patient; taking a positive position X-ray image and a lateral position X-ray image of the head of the patient at the median relation position; constructing a virtual X-ray projection model and a reference coordinate system; respectively adjusting positions and angles of upper andlower tooth jaws of the tooth jaw three-dimensional digital model in the virtual X-ray projection model, and calculating a two-dimensional X-ray projection image; registering the two-dimensional X-rayprojection images of the upper tooth jaw and the lower tooth jaw with an actual skull positive position X-ray image and an actual lateral position X-ray image, and recording parameters of the upper tooth jaw and the lower tooth jaw in a reference coordinate system during optimal registration; inversely solving spatial position information of the temporal-mandibular joint; reconstructing a dentaljaw three-dimensional digital model by using the upper and lower dental jaw three-dimensional digital model information during optimal registration; and further constructing a jaw occlusion motion model and a mechanical decomposition model of the three-dimensional digital model, and providing a virtual operation function and an operation prediction function according to the model.

Hemi joint replacements for the base of the first metacarpal of the CMC joint are provided which can effectively restore and reestablish functional joint mechanics while preserving the soft tissues that contribute to joint stability and function. The implants have a unique head shape with a saddle-like articular surface that is shaped somewhat similar to a conventional bicycle seat. A set of four proportionately larger and smaller implants allows a surgeon to choose the appropriately sized prosthesis for implantation in respect of the metacarpal osteotomy.

The invention relates to a chip with a drive integrated circuit and a corresponding liquid crystal display. The invention provides a projection layout of the chip, which is suitable for the packaging technology of the chip on glass. The chip with the drive integrated circuit comprises a plurality of first projections and a plurality of second projections and can be electrically connected to the glass substrate of the liquid crystal display, wherein the first projections and the second projections are arranged on the surface of the chip and respectively adjacent to two opposite long edges of the chip, and the total area ratio of the first projections to the second projections ranges from 0.8 to 1.2. Thus, when the chip and the glass substrate of the liquid crystal display are jointed, pressure can be uniformly distributed on each position of the chip so that the jointed stability of the chip is improved.

The invention provides a porous meniscus substitute modeling and a preparation method thereof. The modeling method comprises the following steps: scanning the meniscus part of a patient by using CT, performing image processing on a scanned image to obtain a meniscus model matched with the patient, performing parameter acquisition on the concentrated compression stress, shear stress and stress distribution of the femur, tibia and meniscus part of the patient at the meniscus, and setting the pore shape, pore diameter and porosity of the pores in the porous meniscus substitute by adopting a parametric modeling mode to obtain a final meniscus substitute model. The model is subjected to a 3D printing or injection molding process to obtain the porous meniscus substitute. The porous meniscus substitute prepared by the invention can be matched with the meniscus of the user, is favorable for rapid formation of meniscus tissues after transplantation, and has the biomechanical properties meetingthe requirements of knee joint parts; and in addition, through the cooperation of hydrogel and a porous scaffold, the effects of transmitting load, absorbing oscillation and improving the joint stability of the meniscus substitute can be greatly improved.

The invention discloses an NbTi / Cu superconducting composite pipe. The outer layer of the composite pipe is made of oxygen-free copper while the inner layer thereof is made of a niobium-titanium superconducting material. The invention also relates to a preparation method of the composite pipe. The preparation method comprises the steps of: pressing an NbTi alloy ingot into the oxygen-free copper pipe to assemble a composite ingot, and sealing and welding the two ends of the composite ingot by using oxygen-free copper cover plates; performing thermal extrusion process on the well-assembled composite ingot to form an NbTi / Cu composite rod; performing cold drawing process on the composite rod to enable the diameter to be 10-20 mm; performing aging heat treatment on the composite rod after the cold drawing; carrying on the cold drawing process of the composite rod after the heat treatment until the needed outer diameter size is obtained; cutting off the composite rod after the cold drawing in a fixed length, carrying out straightening ;process to form an NbTi / Cu composite rod; cutting off the composite rod in a fixed length, and drilling holes with needed diameter from the center of the composite rod along the axial direction until the NbTi / Cu superconducting composite pipe is obtained. The produced NbTi / Cu superconducting composite pipe is suitable for an NbTi superconducting joint, the resistance of the joint can be reduced efficiently, the joint stability and reliability can be improved, and production in batches is facilitated.

The invention relates to a high-temperature superconducting cable and a joint connecting method thereof, belongs to the technical field of high-temperature superconducting materials, and solves the problems of large size, high resistance, slow heat conduction, high processing difficulty and poor joint stability of the existing high-temperature superconducting cable joint. The joint connecting method comprises the following steps: 1, stacking and welding a plurality of high-temperature superconducting strips end to end in sequence to form a single-layer long strip; 2, stacking a plurality of single-layer long strips, wherein welding points of every two adjacent layers of single-layer long strips are arranged at intervals in the horizontal direction; 3, binding the plurality of stacked single-layer long strips into a high-temperature superconducting stack by using a binding piece. The invention also provides a high-temperature superconducting cable based on the joint connection method. The connector connecting method is simple in manufacturing process and easy in machining, and the cable connector manufactured through the connector connecting method is small in size, small in resistance, high in heat conduction speed and good in application prospect.

The invention provides a double-handle pull-down trainer comprising a vertical frame; a training guideline panel is arranged on the vertical frame; an upper fixing frame and a lower fixing frame are mounted on the upper part and the lower part of the vertical frame respectively; a sliding rod is mounted on the upper fixing frame; the sliding rod penetrates through an enclosed counterweight barreland then is vertically mounted on the lower fixing frame; the enclosed counterweight barrel can move up and down along the sliding rod; the two sides of the enclosed counterweight barrel are providedwith connection blocks; the connection blocks are hinged to the enclosed counterweight barrel; the connection blocks are connected with loop chains; and the other end of each loop chain is connected with a pull handle. According to the double-handle pull-down trainer in the invention, counterweights on the fixed sliding rod are pulled by a human body for safely training leg muscle groups, arm muscle groups and back muscle groups, enhancing the cardiopulmonary function, improving the body flexibility and the coordination ability, improving the joint stability and realizing the rehabilitation effect on movement disorder, muscle weakness, muscle atrophy and other symptoms; and training personnel are helped to take exercise scientifically through a touch screen display according to the conditions of the training personnel, the fitness effect is displayed, and intelligent broadcast is carried out through voice.

A leave-in-place forming system is for concrete slabs and pavements. It comprises a number of components that can include two or more of the following but is not limited to two or more of the following: a plate dowel for load transfer between adjacent concrete panels (joint stability), a divider plate (which could be sheet metal, plastic or other rigid material), and an assembly or molding to finish the concrete to, that armors the joint and / or provides a water-tight seal to the joint. The joint assembly could incorporate an integral setting assembly or bracket, or could be used with a re-usable setting bracket. The integral assembly or bracket is most suitable when it is desirable to place concrete to both sides of the joint assembly at the same time. The re-usable setting bracket is most suitable where concrete is placed to just one side of the assembly and it is desirable to re-use the setting assembly.

An ankle arthrodesis fusion plate is provided that affords compression across the tibio-talar joint to promote bone fusion and joint stability.

The invention discloses an outdoor fitness strolling machine. The outdoor fitness strolling machine comprises a base, wherein triangular supports are symmetrically arranged on both sides of the base;planes on which the triangular supports are positioned are vertical to a plane on which the base is positioned; the planes on which the two triangular supports are positioned respectively are parallelto each other; bearing bases are arranged at the top ends of the triangular supports; the bearing bases are provided with three-stage bent tubes; the upper ends of the three-stage bent tubes are connected with the bearing bases; pedals are arranged at the lower ends of the three-stage bent tubes; the three-stage bent tubes are positioned between the two triangular supports which are arranged symmetrically; and the two triangular supports are provided with U-shaped handrails. The outdoor fitness strolling machine has the advantages of improving cardio-pulmonary function as well as lower limb and waist muscle strength, improving the flexibility and coordination ability of the lower limbs and improving the joint stability of the lower limbs, can rehabilitate lumbar muscle degeneration, hip joint aching pain, lower limb movement disorder, muscle weakness, muscle atrophy and the like, and has very high commercial value and popularization value.

The invention provides a T-shaped web-clamped-by-cover-plate connecting device for a beam-column joint of a fabricated steel structure square steel tube column, and belongs to the field of structuralengineering. The connecting device comprises a column and a beam. The column is formed by welding the square steel tube column, stiffening ribs, a supporting plate and a flange plate in a factory, wherein an upper column body is formed by welding the square steel tube column and the flange plate in the factory; an H-shaped steel beam, the square steel tube column, T-shaped steel plates, L-shaped steel plates, cover plates and the supporting plate are provided with bolt holes corresponding in position, and the H-shaped steel beam can be connected with the T-shaped steel plates and the L-shapedsteel plates through bolts and the column after being conveyed to a construction site. The supporting plate is welded on the side surface of the column and is connected with the lower flange of the beam through bolts, so that in the lever mechanism formed at the joint connection position, the supporting plate also has anti-bending arm of force and bears a part of beam end bending moment, and a plastic hinge is moved outwards; and the H-shaped steel beam is placed on the supporting plate, the H-shaped steel beam can be accurately positioned, and meanwhile, the joint stability is improved. Boltassembling is adopted on site, the construction speed is greatly increased, the construction quality is greatly improved, industrialized production is realized, and on-site rapid assembling is realized.

A lightning-protection grounding resistance stabilizer is used in an assembled-type net-shaped grounding wire device and is an arc wedge which is inserted into a gap between a metal round bar and an inverse U-shaped compression-joint sheet and plays a role in fixation. The cross section shape of the stabilizer which is inlaid into the gap between the inverse U-shaped compression-joint sheet and the metal round bar and plays a role in the fixation is composed through enclosure of two right-angle edges and an internal concave arc edge; the larger front end face of the stabilizer uniformly retracts to the smaller rear end face; in the front end face, the length of the two right-angle edges is equal to the radius of the metal round bar; and lengths of the front end and the rear end of the internally concave arc edge are 1 / 4 and 1 / 8 of the perimeter of the metal round bar respectively. The stabilizer is characterized by high compression-joint stability, a large contact area and effective reduction of grounding-wire resistance to the ground.

The invention provides a protective device for a foot ankle joint ligament, wherein the protective device includes an ankle brace, a foot arch pad, a plurality of fixing structures and ankle protection pads. The ankle brace is worn at a foot ankle joint of a patient; the foot arch pad is placed at the bottom of the ankle brace and at the foot sole position of the patient; the outer side of the ankle brace is wrapped with a group of fixing structures and the ankle protection pads, wherein the ankle protection pads are attached to a medial malleolus, lateral malleolus and foot contour of the patient respectively; with a biomechanics principle, and through the support of the foot arch, the stress state of the foot ankle bone joint and the ligament is improved, the foot ankle bone joint ligament is protected, and the secondary injury is reduced; the protrusion of bones is fully utilized, the position of the protective device is fixed, and slippage failure is avoided. The effects of increasing the ankle joint stability and preventing and treating sprain of ankle joint are achieved, and new treatment and protection measures are provided for vast patients with foot ankle joint ligamentousinjury and after foot ankle surgery.

The sphere double hangs the width ditch pipeline connection part, locks between the handle or the long hook and the gallows spacing after the introduction vice- (15), the suspension hook in own plane of symmetry two sides establishments hook (5), the seal packing collar radial direction lateral section for has the relative smaller aperture (4), assumes cavity body and spring-loaded seal tongue which incompletely seals up (3) isostructuralism, improved the fast attachment operation, increased the joint stability; To is sealed the pressure and the seal packing collar own elastic combination, establishes the seal to distort with is sealed the medium pressure the relation; Retains the shut-down condition by become estranged the coordination to release flows the channel; Sealed the tongue to enhance the establishment seal condition movement sensitivity and the reliable degree. Causes the seal with to divulge a pair of mutually contradictory function, harmoniously melts into the identical seal packing collar in the structure, thus easily realized had the pressure seal, not pressed from releases, to sealed the part the special seal request. Plan idea ingenious reasonable, structure precise simple compact, the manufacture and the use very is all convenient.

The invention belongs to the technical field of sewing devices, and relates to a sewing machine. The problem that an existing sewing machine is low in close joint stability is solved. The sewing machine comprises a base. A reverse joint driving source and a close joint driving source are arranged on the base. A reverse joint output shaft is movably arranged on the reverse joint driving source. Oneend of the reverse joint output shaft is connected with a reverse joint swing base of the sewing machine through a connecting rod mechanism. The reverse joint output shaft is sleeved with a limitingring and fixedly matched with the limiting ring. The close joint driving source is movably provided with a close joint output shaft perpendicular to the reverse joint output shaft. A limiting fork isarranged at one end of the close joint output shaft and provided with two limiting plates at intervals. The close joint driving source can drive the limiting fork to move through the close joint output shaft so that a limiting plate on the limiting fork can abut against the upper end and the lower end of the limiting ring. The sewing machine has the advantage of being good in close joint stability.

The invention provides a physical fitness rehabilitation training process and an action quality evaluation method, and relates to the technical field of sports training. The action quality evaluationmethod comprises posture evaluation, joint flexibility evaluation, joint stability evaluation and action mode evaluation, wherein the posture evaluation comprises a standing posture and a waistline, and specifically comprises the steps of evaluation of the standing posture and providing an exemplary action, wherein 1) the test purpose of the evaluation of the standing posture is to observe the arrangement condition of skeletal muscle and to reflect potential musculoskeletal problems; and 2) the exemplary action is that a person stands back to an evaluation pad, the two feet are parallel to thefront, the knees are consistent with the direction of the toes, the shoulders are naturally relaxed, and the position of the head is in the center line of the evaluation pad. Through a reasonable test flow, the physical fitness rehabilitation training progress and the action quality evaluation can be effectively established for athletes, a lot of convenience is brought to daily training of the athletes, and meanwhile, the damage risk and the motion capability of the athletes can be effectively analyzed.

The present invention discloses a semi-radial head prosthesis for matching to a non-fractured part of a bone. The prosthesis comprises a prosthesis head (3) matching to a radial head of the non-fractured part, the prosthesis head having a fractured surface, the prosthesis head (3) is jointed with the non-fractured part (2) to form an intact radial head. In the present invention, when the partial articular surface of the radial head is fractured, it is unnecessary to remove the entire radial head. Instead, the radial head of the fractured part is replaced with a prosthesis head and the radial head of the non-fractured part is retained. The two parties are combined to form an intact radial head. This minimizes iatrogenic injuries to the patients, and is good for the joint intactness and joint stability.

The invention discloses a method for strengthening joint stability by using an rhBMP-2 release coating on the surface of an artificial joint, which relates to a method for strengthening the joint stability. The invention solves the problem that a function of inducing the bone formation of BMP-2 is difficult to realize in the whole process of forming a new bone by using a method of combining an HAcoating and the BMP-2 on the surface of the traditional artificial joint, and the action time of the release is not controllable by using a method of combining the BMP-2 and polyethylene glycol. The method comprises the following steps of: 1, adding EC and PEG 4000 into chloroform, ultrasonically dissolving the EC and PEG 4000, adding BMP-2 and carrying out ultrasonic dispersion to obtain a BMP-2mixed liquid; and 2, spraying the BMP-2 mixed liquid on an artificial thighbone steam, placing the artificial thighbone steam in an ultra-clean working table to air, packaging into a seal bag, and sterilizing the seal bag at a low temperature to complete the process. The invention has the advantages of even and tight combination of the rhBMP-2 release coating and the joint surface, smooth coatinglayer, difficult damage, strengthened stability of the artificial joint and adjustable release performance.

The present invention provides a composition comprising HMB. Methods of administering HMB to an animal are also described. HMB is administered to decrease joint instability, increase joint stability, decrease joint stiffness, improve joint function, improve joint health, improve balanced movement and improve skeletal joint stability during muscle movement. HMB is administered to increase muscle strength and / or muscle mass in a side of the body contralateral to joint inflammation, joint damage, and / or joint injury.