61 results about "Bony joints" patented technology

Osteoarticular allografts are transplanted by techniques which ensure substantial surface contour matching. Specifically, surgical techniques are provided whereby a plug from an osteochondral allograft may be transplanted to a cavity site which remains after a condylar defect is removed from a patient's condyle. In this regard, the present invention essentially includes placing an osteochondral allograft in substantially the same orientation as the patient condyle, and then removing the transplantable plug therefrom and forming the cavity site in the patient condyle while maintaining their relative same orientation. In this manner, the surface of the transplanted plug is matched to the contour of the excised osteochondral tissue.

A system and method facilitating replacement of comminuted bone fractures or portions thereof adjacent bone joints. The system and method employs a prosthesis to replace at least a portion of the comminuted bone fractures. The prosthesis serves in reproducing the articular surface of the portion or portions of the comminuted bone fractures that are replaced. In doing so, the prosthesis serves in restoring joint viability and corresponding articulation thereof.

The invention discloses a metal artificial bone trabecula for medical purposes. The structural design of the metal artificial bone trabecula is completed by a computer, and then inputted in an electron beam fusion former; the high temperature generated by electron beams is used to carry out the stratified scanning and high-temperature fusion to titanium alloy powder in the former so as to obtain the metal artificial bone trabecula with bio-cancellous bone morphology, strength and elasticity modulus and a rough and loose outer surface formed by a porous structure. The obtained artificial bone trabecula has mechanical and biological characteristics similar to a human bone, high surface friction coefficient, stable structure and wide range of application, and is applicable to various bone defects, bone filling, bone supporting, bone remodeling and bone repair in a human skeletal system as well as bone restoration of bone remodeling and substitute bone of different bone joints of a human body.

A porous total knee prosthesis comprises a femoral ankle prothesis, an artificial meniscus and a tibial tray prothesis, wherein a connection hole is formed in a solid main body part of the femoral ankle prothesis; a first porous fixing layer which can play a fixing role together with the femoral bone is arranged on the surface, combined with the femur of a patient, of the solid main body part in a covering manner; a structure wrapping the femoral end subjected to osteotomy is formed on the surface, opposite to the femur of the patient, of the first porous fixing layer, and two femoral articular surfaces are symmetrically arranged on the surface, back to the femur, of the first porous fixing layer; the artificial meniscus is provided with a protrusion matched with the connection hole and used for preventing the femoral ankle prothesis from dislocation, tibial articular surfaces matched with the femoral articular surfaces and a connection part matched with the tibial tray prothesis; and a locating part matched with the connection part is arranged at the upper end of the tibial tray prothesis, a second porous fixing layer is arranged on the outer surface of a supporting part at the lower end of the tibial tray prothesis in a covering manner, and a third porous fixing layer is arranged on the surface of a tibial bonding surface. The porous total knee prosthesis has a strong binding force with the femoral bone of the patient, facilitates growing-in of bone tissues and can achieve a relatively good biological fixation effect.

In a first broad aspect, there is provided herein a bioactive device and system for fusion between two bones, two parts of a bony joint, or a bony defect, such as of the spine. The fusion device includes a screw having a head and a threaded shaft. The fusion device also includes a bone dowel having an internal bore of which at least a distal portion is threaded to engage the threads of the screw shaft. The bone dowel is made of a bone-like, biocompatible, or allograft material to provide a layer of bone-like, biocompatible, or allograft material between the screw and the spinal bone. The device is generally coaxial and is further described in the drawings and description herein.

An implant (30) for a mammalian bone joint (3) for spacing a first bone (2) of the joint from a second bone (1) of the joint while allowing translational movement of the second bone in relation to the first bone is described. The implant comprises (a) a distal part (31) configured for intramedullary engagement with an end of the second bone, (b) a proximal part (34) having a platform (15) configured for non-engaging abutment of an end of the first bone and translational movement thereon, and (c) an articulating coupling (10, 16) provided between the distal and proximal ends allowing controlled articulation of the first and second bones. The bone-abutting platform is shaped to conform to and translate upon the end of the first bone. A kit for assembly to form the implant of the invention, and the use of the implant to treat osteoarthritis in a bone joint, are also described.

The invention discloses a finger mechanism of an anthropomorphic myoelectrical artificial hand. The finger mechanism sequentially comprises a base, a near knuckle, a middle knuckle and a far knuckle from bottom to top and further comprises a metacarpal bone joint, a near phalanx joint, a far phalanx joint, a near driving tendon and a far driving tendon, wherein the base is in rotary connection with the near knuckle through the metacarpal bone joint, the near knuckle is in rotary connection with the middle knuckle through the near phalanx joint, and the middle knuckle is in rotary connection with the far knuckle through the far phalanx joint. The near driving tendon is connected between the near phalanx joint and the metacarpal bone joint, the far knuckle is connected between the far phalanx joint and the near phalanx joint, and the near phalanx joint and the far phalanx joint are of spring type flexible hinge structures. The finger mechanism can achieve finger bending and stretching only by needing a driving unit, adopts tendon drive to achieve coupling motions of the joints, enables a finger structure to be simple, safe and reliable by applying spring type flexible hinges, is flexible in motion and has an appropriate operating function.

The invention discloses a method for positioning bone and joint in a human finger-vein image, the human finger-vein image can be collected and normalized in a coordinate system, and a double sliding windows model can be used for positioning the bone and joint position in the vein image. The method comprises the following steps: (1) making a double sliding windows model, (2) summing gray values of each pixel of the double sliding window, (3) and finding a minimum value in the sliding process, that is, finding the bone and joint position. According to the invention, the bone and joint precision position can be realized in the vein image with/without light interference, and a better recognition effect can be obtained with light interference.

Provided is a novel walking aid for a bone and joint patient. Rotating sleeves rotationally sleeve the upper portion of a foreleg, a lower separation and reunion plate sleeving the foreleg is coaxially fixed to the rotating sleeves, an upper separation and reunion plate located above a lower separation and reunion device vertically slidingly sleeves the foreleg, a first connecting rod is fixed between the two rotating sleeves, a control rod located below a transverse rod and downwards inclining towards a rear leg is fixedly installed on a control shaft, a sliding frame is slidingly connected with the transverse rod, a control rack fixedly connected with the sliding frame is meshed with a control gear, a connecting gear is rotationally connected with a gear rack, a connecting rack fixedly connected with the upper separation and reunion plate is meshed with the connecting gear, and a middle rod is arranged between the connecting gear and the sliding frame. When the walking aid interactively walks and a patient feels uncoordinated in walking with the walking aid on the body, by loosening the control rod, the positions of two supports can be relatively fixed, and the use safety and reliability of the patient are ensured; when a seat plate is unfolded, the locking of a walking wheel can be realized, and the safety of the patient is ensured.

The invention discloses a composition for protecting bone joint. The composition comprises the following components in parts by weight: 45-52 parts of maltitol, 32-40 parts of hydrolysis II-type collagen, 7-12 parts of turmeric, 6-12 parts of seaweed meal, 3-9 parts of mushroom powder, 8-13 parts of a ginger extract product, 12-20 parts of pawpaw powder, and 6-11 parts of tremella powder. The composition has the advantages that the composition is in favor of cartilage health, has good protection effect for bone joint, has good inflammation reducing efficacy, and has good effects for eliminating Inflammation and analgesic effect for bone joint inflammation.

The invention relates to an improved artificial knee joint tibial tray which is characterized in that the improved artificial knee joint tibial tray is cast or forged, and then a porous medical metal film is formed on the corresponding surface, being in contact with a bone of a patient, of the tibial tray through the additive manufacturing. The strength and mechanical properties of the tibial tray are guaranteed by casting and forging, and then the optimal aperture is customized for the porous film through the additive manufacturing, so that bone attachment or bone ingrowth can be facilitated to the maximum. The improved artificial knee joint tibial tray is suitable for a bone joint replacement surgery for human knee joint lesions.

The invention relates to an improved artificial knee joint femoral prosthesis which is characterized in that the improved artificial knee joint femoral prosthesis is cast or forged, and then a porous medical metal film is formed on the corresponding surface, being in contact with a bone of a patient, of the femoral prosthesis through additive manufacturing. The strength and mechanical properties of the femoral prosthesis are guaranteed by casting and forging, and then the optimal aperture is customized for the porous film through the additive manufacturing, so that bone attachment or bone ingrowth can be facilitated to the maximum. The improved artificial knee joint femoral prosthesis is suitable for a bone joint replacement surgery for human knee joint lesions.

The invention discloses a selectable bone joint forming device for clinic patients. The device comprises a selection adjustment device and a bone joint model, wherein a control box is arranged on the selection adjustment device, through holes are formed in two sides of the control box, sliding support strips are arranged in the through holes, teeth are formed in one end of each sliding support strip, a motor is arranged in the control box, the left and right structures of the bone joint model are controlled through first electric telescopic rods so as to adjust the left and right sizes of the bone joint model, the upper and lower thicknesses of the bone joint forming device are controlled through second electric telescopic rods to better facilitate adjustment, and the motor drives the sliding support strips to control the front and rear lengths of the bone joint model. A Bluetooth device is arranged on the selectable bone joint forming device and can be used for remote control, the selectable bone joint forming device for the clinic patients is simple in structure and can change the shape of implanted bone, and accordingly, the bone can be better matched.

The invention relates to the field of instrument science or biomimetic robots, in particular to an artificial bone joint friction and abrasion test device which comprises an L-shaped base. A cylinder is fixedly arranged at the top end of the base, and a push rod which is vertically arranged is arranged on a piston rod of the cylinder. A first bevel gear is fixedly arranged on the rear portion of the push rod, and a second bevel gear meshed with the first bevel gear is arranged on the bottom face of the push rod. The push rod is concentric with the second bevel gear, and a rolling bearing is arranged in the second bevel gear. The push rod is connected with the second bevel gear through the rolling bearing, and a joint head is fixedly arranged on the lower portion of the second bevel gear. A joint fossa fixedly arranged on the base is arranged on the lower portion of a bone joint. The artificial bone joint friction and abrasion test device can realistically simulate the movement conditions of the human joints and can provide accurate and reliable test data for the clinic application of different joint prosthesis materials.

The invention discloses a method for connecting a human skeleton specimen. A hot melt adhesive rod is adopted for the adhesive bonding between a cartilage and a bony joint, and the method has nearly no substances which are easy to puncture on the integral skeleton, such as a rivet; and one third or more than one third of time for connecting is shortened; the connected skeleton has good stability;the integral appearance is more beautiful and authentic; during the connecting process, the skeleton specimen can be modified randomly according to the characteristics of the skeleton specimen, and the difficulties that the connection of an intervertebral disc and ribs in the skeleton is fussy, and the intervertebral disc and the ribs are difficult to connect and trim are solved. The connected skeleton has high authenticity, medical students can understand and remember the skeleton connection well, and the symbolic structure of the skeleton on the body surface can not be damaged; the connected skeleton can be cleaned and stored, and the using time of the skeleton specimen is prolonged; and because holes are not necessary to be drilled on the skeleton to fix, the bone landmark on the surface of the skeleton can not be damaged, and the basis is provided for learners.

The invention belongs to the technical field of artificial limb repair and orthotics and discloses a pure-titanium outer-hanging osseointegration artificial limb implant. The implant comprises a fixing cap and a thread structure; the thread structure is formed in the fixing cap. According to the innovative outer-hanging osseointegration artificial limb, the bony joint of titanium and bone cortex can succeed as well to provide a fixing position, the tissue in the marrow cavity is not harmed, non-reversibility bone absorption caused when the bone cortex is subjected to stress shielding in a traditional artificial limb is reduced, and the exterior of the titanium artificial limb and the skin soft tissue can achieve good soft tissue integration; in addition, the space to vary the appearance ofthe outer-hanging implant is wide, a 3D printing technology of combining CT scanning with selective laser melting (SLM) and other methods can be used for customizing the porous titanium cap artificial limb implant, the inner face of the outer-hanging artificial limb is better matched with the appearance of the limb stub bone, the tissue in the implant grows into the inner face of the outer-hanging artificial limb, and the exterior better meets the demand for a more natural biological appearance and dynamics requirements.

The invention discloses ointment for treating osteoarthropathy, which is prepared by the following Chinese medicinal raw materials in part by weight: 10 to 15 parts of processed common monkshood mother root, 12 to 16 parts of medicinal cyathula root, 10 to 15 parts of common burreed rhizome, 10 to 15 parts of zedoary, 10 to 15 parts of myrrh, 10 to 15 parts of frankincense, 12 to 16 parts of trogopterus dung, 12 to 16 parts of dragon's blood, 10 to 15 parts of dipsacus asper, 12 to 16 parts of processed kusnezoff monkshood root and 12 to 16 parts of catechu. The Chinese medicinal raw materials are reasonable in compatibility, complement one another, together have the effects of quickening blood and dissipating stasis, warming and freeing channels, moving vital energy and relieving pain, dispelling wind and eliminating dampness, strengthening sinew and bone, and engendering flesh and closing sores, improve obstruction, vital energy stagnation and blood stasis of bony joints, make vital energy and blood of the bony joints smooth and make various kinds of osteoarthropathy cured.

Instruments and associated methods are disclosed for treating joints, and particularly bone tissue. In general, the embodiments relate to instruments and associated methods for the surgical treatment of a joint, and particularly to a subchondral bone defect at that joint region. More specifically, the embodiments relate to instruments that allow fast, easy, precise, and controllable subchondral delivery to, or removal of materials from, a bone joint being treated. An injection needle (200) having one or more holes 216 within a helical groove 214 is disclosed. Also disclosed is a system including a cannula (410), a handle (420) and a stabilizer (430).

The invention discloses a human body bone joint kinematics dynamic collection system. A Y-axis movable base is arranged on an X-axis movable base. A Z-axis supporting frame is arranged on the Y-axis movable base. A human body supporting pedal is independently arranged on the ground. A rotating shaft is arranged on the Z-axis supporting frame. A first supporting frame and a second supporting frame are arranged on the rotating shaft. A first X-ray tube and a first X-ray receiver are arranged on the first supporting frame. A second X-ray tube and a second X-ray receiver are arranged on the second supporting frame. A motion capture device is arranged on an object to be collected. A motion collection device is arranged on the rotating shaft. A computer controller is independently arranged. Relative rest of the motion capture device and the motion collection device can be ensured, and it is ensured that the focal lengths of the X-ray tubes and the X-ray receivers will not change. The best radiation effect is ensured by adjusting the irradiation angle, and the device is simple in structure and can rapidly and accurately collect human body bone joint in-vivo kinematics.

The invention belongs to the technical field of medical equipment, in particular to a dressing change auxiliary device convenient to move for the bone and joint surgery. The following scheme is proposed to solve the problem that no flexible movable part is available, the adjustment is inconvenient, the design structure is simple, the function is single, and the use is inconvenient. The device comprises a first chassis. Four connecting rib plates placed equidistantly in an annular shape in a tilting mode are welded on the outer wall of the top of the first chassis, a second chassis is welded onthe outer wall of one end of each of the four connecting rib plates away from the first chassis, and support legs distributed equidistantly are welded on the peripheral outer wall of the first chassis. The device can be stably supported, is prevented from falling in the use process, and can be moved rapidly. Further, the height of the device can be adjusted, and the device can be used for movingthe bone of a patient in two different modes.