20 results about "Proximal humerus" patented technology

The invention provides a fixing steel plate for proximal humerus comminuted fracture, and relates to the technical field of proximal humerus fracture, the fixing steel plate comprises a main steel plate with a connecting hole and a branch steel plate fixed with the main steel plate through the connecting hole; a plurality of extending claws are arranged on the side, away from the main steel plate, of the branch steel plate, and fixing structures are arranged at the ends of the extending claws and can connect bone fragments and make the bone fragments tightly attached to the main bone. The branch steel plates can be strip-shaped or ring-shaped, and the extension claws can be integrally formed or detachably combined. The problems that a traditional steel plate can only be placed on the outer side, and when fractures are smashed, the upper rear large nodule and the inner fracture blocks are difficult to fix and prone to displacement or internal fixation fails are solved, all-directional fixation is achieved, the steel plate is suitable for different fracture scenes, operative wounds are reduced, and shoulder joint function recovery is assisted.

The utility model provides a proximal humerus weight lifting swing training device. The proximal humerus weight lifting swing training device comprises a wrist fixing belt, a hand grabbing rope belt and an annular hanging buckle. The two ends of the wrist fixing band in the length direction are detachably connected; the length direction of the hand grabbing rope belt is parallel to the width direction of the wrist fixing belt, one end of the hand grabbing rope belt is connected to the wrist fixing belt, the annular hanging buckle is installed at the other end of the hand grabbing rope belt, and the annular hanging buckle is used for hanging heavy objects. The device is fixed on the wrist of a patient, a heavy object is hung on the device through the annular hanging buckle, and the patient can lift the heavy object to carry out hand swinging exercise by grasping the rope belt with hands, so that the heavy object cannot fall off due to the limitation of the annular hanging buckle, and the accident that the heavy object hurts the patient is avoided.

This invention discloses an integrated preoperative planning system and method for locking plates in proximal humeral fractures, comprising: a data preprocessing module for processing CT data; a fracture segmentation and 3D reconstruction module for segmenting and generating fracture fragment models; a target anatomy prediction and fragment disposal module for predicting target anatomical morphology and classifying fracture fragments; a surgical feasibility-constrained virtual reduction module for virtual reduction under anatomical and clinical constraints; a plate fitting and fixation planning module for optimizing plate fit, screw configuration, and generating equivalent fixation parameters; a finite element modeling and solving module for automatic mechanical simulation; and a risk assessment and closed-loop optimization module for assessing risks and triggering replanning to achieve closed-loop optimization. This invention significantly reduces preoperative planning time, improves the mechanical reliability and clinical fit of the plan, and provides a quantitative basis for surgical decisions.

The invention relates to an osteosynthesis plate (P) designed for attachment to the proximal humerus (H) for fixing bone fragments and comprising an elongated base body (G) with a top surface (G1) and an opposing bottom surface (G2). The base body (G) has two fastening sections (BA1, BA2) arranged longitudinally at the respective ends (E1, E2) of the base body (G), each of which is equipped with at least one through-hole (A1, A2, A3, A4), wherein the through-holes (A1, A2, A3, A4) are each provided for receiving one screw (SK). The osteosynthesis plate (P) is designed for anterior fixation to the proximal humerus (H), wherein the base body (G) is provided on the underside (G2) in the longitudinal direction between the fixation sections (BA1, BA2) with a recess (AS) which completely penetrates the base body (G) transversely.The invention further relates to an osteosynthesis set (O) with such an osteosynthesis plate (P).

The utility model discloses a nail plate system for fixing pathological fracture of the proximal humerus of a child, and particularly relates to the technical field of medical instruments. The nail plate system for fixing the pathological fracture of the proximal humerus of the child comprises a steel plate, a plurality of screws are installed on the steel plate, the screws are screwed into the humerus to effectively fix the steel plate to the surface of the humerus, the screws are perpendicular to the steel plate, the diameter of each screw is 3 mm, and the diameter of each screw is 3 mm. In this way, it can be guaranteed that the screw can be screwed into a small amount of sclerotin above a focus, and if a traditional humerus near-end steel plate is adopted, the screw is obliquely screwed into the humerus to damage epiphysis. The nail plate system for fixing the pathological fracture of the proximal humerus of the child can effectively fix the pathological fracture of the proximal humerus of the child, and is beneficial to early recovery of functional exercise of a child patient.

An implant, system, and method used for inserting a tendon repair implant system into a patient's humerus. The implant system includes an implant and at least one staple. The implant includes a body, a first arm extending away from the body on a first end of the implant, and a second arm extending away from the body between the first end and a second end of the implant. The implant may also include a hydrogel coating with a gradient of human growth factors positioned on at least the bone contacting surfaces. The implant is positioned on the proximal humerus and greater tuberosity with the two arms of the implant spaced apart forming a passageway for receiving the rotator cuff tendon.

The invention discloses a reduction locking internal fixation device for compression fracture, and relates to the technical field of medical instruments. The device comprises an implantation assembly, a supporting assembly, an adjusting assembly and a locking mechanism, a main body structure of the implantation assembly provides an installation reference, the adjusting assembly drives a threaded rod of the supporting assembly to ascend and descend through meshing of a bevel gear, and a supporting piece is attached to a fracture surface to achieve precise reduction; the locking mechanism fixes the supporting height through gear meshing, and displacement is avoided. The device overcomes the defects that in the prior art, bare-handed reduction depends on experience, fixation easily collapses, and bone grafting resources are in shortage, manual prying and shifting of allogeneic bones are not needed, supporting is even and stable, operation is convenient and fast, the device is suitable for various intra-articular compression fractures such as tibial plateau and proximal humerus, the operation difficulty can be lowered, the treatment effect can be improved, and the complication occurrence rate can be reduced.

A humeral implant is disclosed. The implant has a humeral surface component and a stem. The humeral surface component has an articular surface and is configured for fixation to an articular portion of a proximal humerus. The stem is configured for post-surgery axial movement within the humerus. The stem is connected to the humeral surface component opposite of the articular surface. A method of implanting a humeral implant is also disclosed.

The present application relates to the field of orthopedic biomedical technology, specifically, a proximal humerus fracture intramedullary bone cement support rod, which comprises a bone plate, a plurality of first connecting holes and a plurality of second connecting holes are formed on one side of the bone plate, and a solid bone nail is arranged in the first connecting hole. The device can inject bone cement into the bone marrow cavity through the injection channel and the injection port, and then solidify into a rod body to tightly fill the bone marrow cavity space. Through the cooperation of the bone plate and the bone cement support rod in the bone marrow cavity space, a support structure is formed on both sides of the humerus, the stress during the movement of the patient's arm is evenly distributed on both sides of the humerus, the fixation stability is significantly improved, the risk of internal fixation failure such as steel plate displacement and screw cutting is effectively reduced, the bone cement support rod can also prevent the displacement of the fracture block, promote the repair of the fracture, reduce the extrusion and friction of the surrounding tissue of the filling part, reduce the inflammatory reaction and postoperative pain, and improve the comfort of the patient's recovery.

The application relates to the technical field of medical devices, in particular to a novel metal ceramic reverse type shoulder joint prosthesis system and a preparation method thereof. The system comprises a humeral stem, a humeral holder, a humeral pad, a reverse type glenoid head, a taper adapter and a glenoid holder which are sequentially assembled together. The humeral holder, the humeral pad, the reverse type glenoid head and the taper adapter are all formed by 3D zirconium niobium metal printing or forging; the humeral stem and the glenoid holder are integrally formed by 3D printing zirconium niobium alloy, and the bone combining surface is a trabecular structure; an active contact friction interface is formed between the humeral pad and the reverse type glenoid head, and the interface is a zirconium niobium surface oxidized metal ceramic interface. It can be seen that, by replacing the high polymer material component with the zirconium niobium metal ceramic component, the prosthesis system can reduce the bone cutting amount of the proximal humerus, increase the wear resistance of the friction interface, and manufacture a micro-texture structure on the friction interface to realize the super strong wear resistance and low wear of the friction interface, which is beneficial to the long-term stability after the prosthesis is implanted.

The utility model discloses a greater tuberosity humerus steel plate structure in the technical field of medical instruments, which comprises a plate body, a first bendable part and a second bendable part are mounted on the surface of the upper end of the plate body side by side left and right, and first lock nail holes are fixedly formed in the surfaces of the first bendable part and the second bendable part in a penetrating manner; three sets of sewing holes are formed in the upper portion of the surface of the plate body side by side in a left-right penetrating mode, a second lock nail hole and a third lock nail hole are formed in the portion, below the sewing holes, of the surface of the plate body in a penetrating mode, and a fourth lock nail hole is formed in the portion, below the second lock nail hole and the third lock nail hole, of the surface of the plate body in a penetrating mode; the plate body structure solves the problems that according to a traditional proximal humerus steel plate, for a greater tuberosity humerus fracture block, 3.5 locking nails easily increase the crushing degree of the fracture block, and the fracture block cannot be effectively fixed, but the two first bendable pieces and the second bendable pieces at the head end of the plate body structure and the first locking nail holes can effectively prevent the greater tuberosity humerus fracture block from moving upwards, and the fracture block cannot be effectively fixed. And a fracture block can be effectively fixed.

The invention relates to the technical field of medical instruments, and discloses a proximal humerus fracture restoration preparation method which comprises the following steps: acquiring proximal humerus CT image data of a patient, and constructing a three-dimensional digital skeleton model through medical image processing software; on the basis of the three-dimensional digital skeleton model, personalized adaptation parameters of the prosthesis are determined by adopting a parameterized design algorithm, and the personalized adaptation parameters comprise anatomical angle parameters, medullary cavity curvature parameters and dimension specification parameters; according to the personalized adaptation parameters, a digital model of the modular restoration is generated through computer aided design software, and the digital model comprises a first bearing part and a second bearing part which are connected through a splicing structure and an adjusting connection part arranged between the first bearing part and the second bearing part. The purpose of the invention is to realize personalized precise adaptation, have intraoperative regulation ability, and integrate advanced manufacturing and biological activity technologies.

The invention discloses a reverse mold for supporting an anatomical bone cement rod applied to proximal humerus fracture, and belongs to the technical field of proximal humerus fracture supporting.The reverse mold for supporting the anatomical bone cement rod applied to the proximal humerus fracture comprises a left mold and a right mold which are used for mold closing forming; the reverse mold further comprises a left mold core upper mold cavity and a left mold core lower mold cavity which are communicated with each other and are formed in the inner molding surface of the left mold, and a right mold core mold cavity is formed in the inner molding surface of the right mold; the left mold and the right mold are precisely butted and closed to prepare a supporting rod matched with the proximal humerus intramedullary anatomical structure; the bone cement supporting rod can be rapidly prepared through the left mold and the right mold, operation is rapid and convenient, the formed shape and size of the bone cement supporting rod are stable, operation requirements are met, repeated adjustment and correction are not needed, and the left mold and the right mold can be prepared through the 3D printing technology or made of metal materials; and the prepared mold can be repeatedly used to assist the surgical operation.

Anatomical proximal humeral osteosynthesis bone plate devices, as well as kits and systems incorporating these devices, are disclosed. The bone plate device is configured and adapted to be attached to the proximal humerus. The kit comprises at least two bone plate devices which differ from each other in at least one structural and / or dimensional characteristic. Methods of use thereof are also disclosed.

The invention belongs to the technical field of medical instruments, and particularly discloses a continuous angle-adjustable intramedullary nail for proximal humerus fracture, which comprises a main nail and an adjusting mechanism penetrating through the main nail, the adjusting mechanism comprises an adjusting hole formed in the main nail, and a first hemispherical seat is machined on the inner wall of the adjusting hole; the special-shaped sleeve is fixed in the adjusting hole, a second hemisphere seat is machined at the end of the special-shaped sleeve, and the first hemisphere seat and the second hemisphere seat jointly form a ball socket; the ball socket bush is provided with an outer spherical surface matched with the ball socket and a through hole for the distance screw to pass through, and is accommodated in the ball socket; the pitch screw sequentially penetrates through the special-shaped sleeve and the ball socket bushing and extends out of an outlet of the adjusting hole; the radial locking screw is in threaded connection with the main nail, and the end of the radial locking screw abuts against the surface of the ball socket sleeve lining to lock the angle during screwing. By means of the structure, the angle of the distance screw can be continuously and steplessly adjusted in the operation, individualized matching is achieved, reliable locking is achieved through the radial locking screw, the stability and adaptability of internal fixation are improved, and the specification number of needed instruments is reduced.

This invention relates to the field of trauma orthopedic technology, specifically to a modular proximal humeral fracture reduction and guidance device. The implantation module of the modular proximal humeral fracture reduction and guidance device includes an intramedullary nail implantation guide and a first mounting base. The intramedullary nail implantation guide is connected to the first mounting base and is used for insertion into the humerus. The humeral head reduction module includes a second mounting base and a humeral head reduction guide. The humeral head reduction guide is connected to the second mounting base and is used for insertion into the free humeral head, parallel to the fracture surface of the humerus. The greater tuberosity reduction module includes a third mounting base and a greater tuberosity reduction guide. The greater tuberosity reduction guide is connected to the third mounting base and is used for insertion into the greater tuberosity and humeral head. This modular proximal humeral fracture reduction and guidance device has a simple structure and is easy to operate. It is suitable for reduction before internal fixation of proximal humeral fractures, as well as for positioning relevant reference points for intramedullary nail or plate implantation.

The utility model relates to the technical field of medical equipment, in particular to a proximal humerus locking bone fracture plate which comprises a bone fracture plate proximal end section, a bone fracture plate torsion section and a bone fracture plate lengthening section which are sequentially connected, locking holes are formed in the bone fracture plate proximal end section, the bone fracture plate torsion section and the bone fracture plate lengthening section, the bone fracture plate torsion section is of a split type, and the bone fracture plate lengthening section is of a split type. The bone fracture plate comprises a bone fracture plate near-end section and a bone fracture plate lengthening section, the bone fracture plate near-end section is integrally formed with the bone fracture plate lengthening section, the bone fracture plate near-end section and the bone fracture plate lengthening section are integrally formed with the bone fracture plate near-end section, and the bone fracture plate near-end section and the bone fracture plate lengthening section are integrally formed with the bone fracture plate lengthening section. The proximal humerus fracture plate section and the lengthened humerus fracture plate section which are matched in model are selected, the upper torsion section and the lower torsion section are matched with the fastening bolt to complete targeted adjustment and assembly, the structural strength is guaranteed under the cooperation of the insertion plate and the insertion groove, stable support can be provided, and the proximal humerus restoration effect is improved.

The proximal humerus metal locking bone fracture plate assembly comprises a steel plate humerus body section, and the top of the steel plate humerus body section is sequentially provided with a first steel plate subsection, a second steel plate subsection, a third steel plate subsection, a fourth steel plate subsection and a fifth steel plate subsection from bottom to top. Mounting grooves are formed in the tops of the steel plate humerus body section, the first steel plate section, the second steel plate section, the third steel plate section and the fourth steel plate section, and telescopic joints are fixedly mounted at the bottoms of the first steel plate section, the second steel plate section, the third steel plate section, the fourth steel plate section and the fifth steel plate section; and the telescopic joints are rotationally connected with the adjacent mounting grooves. According to the utility model, the overall radian can be adjusted through the titanium alloy strip and the auxiliary sleeve, so as to meet the radian requirements between the greater tuberosity of humerus and the humerus body of different patients and the self radian requirement of the greater tuberosity of humerus, so that the greater tuberosity of humerus can well meet the requirements of most patients.

Anatomical proximal humerus osteosynthesis bone plate devices, as well as kits and systems containing same, are disclosed. The bone plate devices are configured and adapted for attachment to a proximal humerus. The kits include at least two bone plate devices that differ from one another in at least one structural and / or size characteristic. Also disclosed are methods of use thereof.

The invention discloses a proximal humerus fracture rehabilitation training device with constant traction force, which belongs to the field of medical instruments and comprises a base and a telescopic frame arranged on the base. The arm supporting mechanism is connected with the top of the telescopic frame through the hinge structure so as to allow the arm supporting mechanism and the telescopic frame to rotate relatively, and the hinge center of the hinge structure forms a shoulder joint simulation rotation center; the traction assembly comprises an elastic energy storage structure and a traction cable which are connected with each other, and further comprises a fixed pulley connected to the outer wall of the arm support mechanism; after the traction cable bypasses the fixed pulley and changes the direction, the free end of the traction cable is connected to the elbow area of the adjustable arm support mechanism; therefore, when the arm support mechanism rotates around the shoulder joint simulation rotation center, the direction of traction force applied to the upper limbs of the patient by the traction cable is always kept consistent with the direction of the limb bearing axis defined by the arm support mechanism. By means of the arrangement, constant axial traction can be provided on the premise that it is guaranteed that the fracture end is subjected to shearing component force of traction force.