632 results about "Orthopaedic department" patented technology

A bone plating apparatus includes a handle having extending therefrom a tissue expander for insertion through a skin incision and through the subcutaneous tissue surrounding a fractured bone. A bone plate may be secured to the handle during advancement of the tissue expander so as to deliver the bone plate to a desired location proximate to the fractured bone. Both the tissue expander and the bone plate may be advanced to the desired location proximate to the fractured bone under the visualization of an endoscope. A screw alignment jig is secured to the handle and has a guide hole which aligns with an access hole of the tissue expander. The alignment of the guide hole and the access hole allow for percutaneous screw insertion into the delivered bone plate. A method for plating a fractured bone is also disclosed.

Artificial implants having reduced area to provide reduced wear are provided. The reduced area is particularly located at areas where greatest wear is exhibited. In a particular embodiment of a mobile bearing knee implant, the area is reduced on the mobile bearing insert underside, where it contacts a tibial component. The reduced area may be any shape of indentations, for example, grooves, dimples, straight patterns, curved patterns, crossing patterns, holes, channels or slots. The indentations may be various sizes, and have been found to be particularly effective if covering about 10% to about 20% of the insert at depths between about 1-2 mm.

A prosthesis (20) for use in performing joint arthroplasty is provided. The prosthesis (20) is to be fitted to a long bone (3). The prosthesis includes a first body (22) having a first body articulating surface (24) defining a generally circular outer periphery (26) of the first body articulating surface (24). The first body (22) has a support surface (28) opposed to the articulating surface (24). The support surface (28) is adapted to receive the head of the long bone (3). The prosthesis (20) also includes a second body (30) operably associated with the first body (22). The second body (30) has a second body articulating surface (32) extending from a portion of the circular outer periphery (26) of the first body articulating surface (24).

The invention discloses a method for manufacturing a navigation template of human bone surgery and a female die thereof. The method comprises the following steps of: a, acquiring raw data of a patient bone, and establishing a three-dimensional model on a computer; b, analyzing the three-dimensional model, extracting a bone curve image near a surgical screw inlet part, and designing a screw positioning rod; c, establishing a reverse template fitted with a bone curve near the surgical screw inlet part to make the screw positioning rod matched with the reverse template through reverse engineering software, establishing a three-dimensional model of the female die of the surgical navigation template, and manufacturing a physical model of the female die; and d, pouring biomedical materials into the physical model of the female die to make the bottom three-dimensional shape of the biomedical material model fitted and consistent with the bone curve near the surgical screw inlet part, and hardening to form the biocompatible navigation template of human bone surgery. The biocompatible navigation template of the human bone surgery manufactured by the invention makes the surgery safer and achieves better effect.

The invention discloses a three-dimensional guiding method for use in an orthopaedic operation and a guider thereof. In the invention, an acceleration sensor and a magnetic field sensor are fixedly arranged on an operating instrument, wherein the acceleration sensor acquires gravity acceleration components corresponding to the axes of the operating instrument, and the magnetic field sensor acquires the magnetic field components corresponding to the axes of the operating instrument; the acquired gravity acceleration components and magnetic field components are converted into azimuth angle and sagittal saw angle information which is to be displayed in real time; and real-time three-dimensional orientation guiding is performed according to the displayed azimuth angle and sagittal saw angle information. The guider can be used to help medical care personnel to determine the sizes of azimuth angles and sagittal saw angles in clinic so as to avoid various human errors. Meanwhile, the guider has a small volume and therefore is convenient to carry; and when the guider is used, the medical care personnel can acquire real-time position accurate information, so that the successful rate of an operation can be increased.

The invention discloses a high-strength, high-plasticity and corrosion-resistant titanium alloy, a preparation method thereof and an application thereof. The invention belongs to the field of titanium alloy technology. According to the titanium alloy, a certain mass fraction proportion of copper (2.6-4.9%) is added into titanium, then the copper and the titanium are mixed and smelted, and after a series of heat treatment processes, dispersed titanium copper phase is precipitated on the basal body of the titanium alloy, so that an anti-microbial objective can be achieved. Moreover, the mechanical property, the corrosion property and the bio-compatibility of the titanium alloy can be improved significantly and the titanium alloy can be widely used for various kinds of titanium alloy medical instruments in the field of medical clinic such as the orthopaedics department, the stomatology department and like.

The invention relates to a degradable magnesium alloy implanting material for bone fixation and a preparing method of the degradable magnesium alloy implanting material. The implanting material is prepared from, by mass percent, 0.5-4% of Mg, 0.5-4% of Ag and the balance Y. The preparing method of the implanting material comprises the steps of ingot casting metallurgy, extruding, rolling and heat treatment. The prepared implanting material meets the requirement of plates, rods and profiles, wherein the plates, the rods and the profiles serve in biological fluid environments. By means of alloy materials, the good comprehensive mechanical performance needed by bone fixing materials is ensured, the beneficial effects of being capable of inhibiting bacteria, resistant to corrosion, free of cytotoxicity, good in biological mechanical property and the like are achieved, and the alloy materials can be degraded under the biological fluid environments. The implanting material can serve as bone nails or marrow nails or bone fraction plates or other various devices to be used under the medical conditions, and the comprehensive performance is good; and especially, the implanting material has both the biomechanical property and the biodegradable performance at the same time, and the typical defect of existing metal materials of a titanium alloy or stainless steel or high polymer materials in application of the department of orthopaedics is overcome.

The present invention relates generally to an antibacterial coating which is composed of silver, to medical tools and to implants comprising such a coating and to a method as well to an apparatus for the production of such a coating. The medical tools or the dental or orthopaedic implant comprises a metal or metal alloy having a treated surface wherein the treated surface is at least partially converted to an oxide film by plasma electrolytic oxidation using a colloid-dispersed system and wherein the converted surface is partially covered by islands formed by colloid-dispersed silver-particles of the colloid-dispersed system. An Ag—TiO₂ coating shows excellent properties in terms of antibacterial efficacy (even against multi-resistant strains), adhesion and biocompatibility. The life-time of an implant in a human body is increased. The antibacterial coating can be used in the field of traumatology, orthopaedic, osteosynthesis and/or endoprothesis, especially where high infection risk exists.

The invention relates to the technical field of medical instruments, in particular to a smoothly started leg rehabilitation training instrument for an orthopaedic patient, which can enable the patientto perform stretching rehabilitation training on leg ligaments and tendons. The leg rehabilitation training instrument comprises an inclined opening and closing semicircular disc, opening and closingassisting armrests, leg up-and-down swing lining plates, a damping matching base, an inclined supporting sliding bottom frame, inclined driving assisting armrests and a locking lying training bed, apatient lies on the locking lying training bed firstly, then two legs are fixed to the two leg up-and-down swing lining plates, and then up-and-down swing training of the two legs is conducted; ligaments and tendons behind the legs of the patient can be trained when the legs are lifted, and the two opening and closing assisting armrests can be driven to slide at the front end and the rear end of the inclined opening and closing semicircular disc by swinging the lining plate up and down through the two legs of the patient, so that the patient can perform opening and closing training on the legs; ligaments and tendons on the inner sides of the legs of the patient are subjected to stretching rehabilitation training.

The invention relates to the technology of biological material in the field of biomedical engineering, specifically a preparation technology for bioactive bone-repairing cement material, which is suitable for medical application in the fields of orthopaedics department, thoracic surgery department and reconstructive surgery, such as artificial joint fixation, bone defect filling and implant restoration. The invention relates to a new material which is a combination of powder and liquid with bioactivity for bone repairing and is characterized in that the combination comprises a powder component including homopolymerization powder of methyl methacrylate or copolymerization powder of methyl methacrylate, and a sosoloid powder doped with strontium hydroxyapatite capable of being hardened and solidified to form solid substance with a certain mechanical intensity and synostosis activity when mixed with the liquid component. The main component of the liquid includes methyl methacrylate monomer, which can form bioactive bone-repairing cement when mixed with the powder component. Compared with the prior art, the material can further increase osteoconduction and osteoconduction activity of the combination, and accelerate healing of bone defect part; thus, the material is suitable for orthopaedics department and craniomaxillofacial plastic repair.

The invention discloses an intellectualized orthopaedics implant for reconstruction after centrum excision. The intellectualized orthopaedics implant comprises an outer sleeve and an inner sleeve, wherein the outer sleeve is provided with an opening in one end, and an end surface at the other end, and the inner sleeve is provided with an opening in one end, and an end surface at the other end; theopening end of the outer sleeve is mounted at the opening end of the inner sleeve in a sleeving manner; the outer sleeve is in clearance fit with the inner sleeve; a stress sensor is arranged in a gap between the outer sleeve and the inner sleeve; a stress sensor and a displacement sensor are arranged at a supporting component between the opening end of the inner sleeve and the outer sleeve; anda gravity sensor is arranged on the inner wall of the outer sleeve or the inner sleeve; a plurality of through holes are formed in the side wall of the outer sleeve and/or the inner sleeve, communicate with an inner cavity of the outer sleeve and/or the inner sleeve, and are formed in the periphery of the outer sleeve and/or the inner sleeve. According to the intellectualized orthopaedics implantdisclosed by the invention, under the situation that X-ray examination and CT examination are not performed, whether a patient is subjected to bone fusion or not can be accurately judged, the precision rate for judging bone fusion is increased, and the own position, the stress situation and the like of the orthopaedics implant after transplanting can be recorded and fed back.

The invention discloses an orthopaedic navigation and positioning system and method, and the system comprises a mechanical arm which is provided with an actuator and a tracer at the tail end; a precision verification device which is used for cooperating with the C-arm machine and the optical tracker to verify and optimize the navigation precision of the system; an optical tracker which is used for collecting the position of the tracer on each device and obtaining the position information of the corresponding device; a C-arm machine which is used for scanning to generate a preoperative 3D image and registering the preoperative 3D image with the intraoperative 2D perspective image; and an upper computer which is used for planning a path according to the preoperative 3D image, controlling the mechanical arm to move to a target position after the preoperative 3D image is registered with the intraoperative 2D perspective image, and carrying out an operation. By means of precise positioning, the operation precision of a person and a mechanical arm can be maximized, wounds of a patient are reduced, meanwhile, the operation process can be accelerated, and radiation borne by doctors and the patient is reduced.

The invention relates to a sickbed, and especially relates to an orthopedics sickbed convenient for a patient to get out. The technical problem to be solved by the invention is how to design the sickbed convenient for the patient to get out for the orthopedics department, which is convenient for the patient to get out when the patient gets out of bed. The sickbed comprises: a bed frame, wherein telescopic rods are connected to the two sides of the bed frame in an embedded mode, a supporting plate is connected between the tops of the telescopic rods, guide grooves are formed in the two sides ofthe top of the supporting plate, and guide rails are connected to the guide grooves in the two sides in a sliding mode; a fixed bed plate connected between the tops of the guide rails on the two sides; and a rotating mechanism arranged between the bed frame and the fixed bed plate. Through cooperative operation of the rotating mechanism and a lifting mechanism, a patient can be located at a proper height and a proper angle when getting out of bed, so the patient can get out of bed more conveniently.

A kit for bonding to biological hard tissues, containing a phosphorylated polysaccharide, a polyvalent metal salt other than phosphates, and a solvent. The adhesive composition for biological hard tissues provided by the kit for bonding to biological hard tissues is suitably used in for medical uses, such as cement for bones or dental cement. In addition, since the adhesive composition has excellent bio-absorbability, it is useful as fusion materials for artificial joint prosthesis, fusion materials for spine fracture, fusion materials for extremity fracture, filling materials for bone tumors in the region of orthopedics, filling materials and restorative materials at dental caries-defective sites, luting materials for prosthetic restorative materials such as inlay and crown, pulp-capping and lining materials, implant surface treatment materials, periodontal disease therapeutic materials, hyperesthesia preventive materials, dental pulp capping materials, substrates for DDS, substrates for systems engineering, and tissue bonding materials in the dental region.

The invention discloses a leg rehabilitation training device used in a neurosurgery department and relates to the field of medical rehabilitation. Aiming at problems that a patient in a conventional leg neurosurgery department lies on a bed and cannot take effect rehabilitation training after a surgical operation, and thus the rehabilitation cycle of the patient is long, the invention discloses ascheme that the leg rehabilitation training device comprises a transverse bracket, wherein two telescopic rods in symmetric distribution are mounted inside the transverse bracket in a sliding manner;end parts of the telescopic rods are moved out of the transverse bracket; sleeves are fixedly connected with bottom ends of the telescopic rods; moveable rods are mounted inside the sleeves in a sliding manner; and end parts of the moveable rods extend to parts below the sleeves and are fixedly connected with positioning devices. The leg rehabilitation training device can be effectively fixed on guard bars of beds of different sizes, enables a patient to take effective leg and arm postoperative rehabilitation training, effectively shortens rehabilitation cycles, meanwhile, is capable of preventing muscle atrophy phenomena caused by long-term bedridden situations, and is applicable to popularization.

The invention relates to a massage robot for treating cervical spondylosis of a department of orthopaedics. The massage robot comprises a fixing table. The upper end face of the fixing table is symmetrically provided with four parallel connection branched chains. An operation table is installed at the top ends of the four parallel connection branched chains. A rotating motor is installed in the middle of the upper end face of the operation table through a motor base. A rotating platform is fixedly installed at the output end of the rotating motor. The lower end face of the rotating platform is uniformly provided with four limiting rods in the axis direction. The four limiting rods and annular limiting sliding grooves are connected in a sliding-fit mode. The annular limiting sliding grooves are welded to the upper end face of the operation table. A massage mechanical hand is welded to the middle of the rotating platform. The automatic ultrasonic massage function can be achieved, the massage robot has the comfortable degree of artificial massage and also has the advantages of being easy and convenient to operate, good in massage effect, uniform in massage force, adjustable in massaging force, adjustable in massage height, large in massage range, wide in application range, high in working efficiency and the like, and the new way is provided for automatic cervical vertebra massage.