58 results about "Initial fixation" patented technology

The invention discloses a method for performing EBM metal 3D printing on a personalized human body thighbone prosthesis sleeve. The method includes the steps that encrypted CT scanning is performed on the upper middle section of a metaphysis prosthesis part, and CTdicom data are input into Mimics software to reconstruct a grid model; surface reconstruction and smoothing processing are performed on the grid model; post-modification is performed on the bone three-dimensional grid model based on the joint prosthesis design concept; a personalized joint prosthesis three-dimensional model is generated through surface reconstruction and designing; the shape of a personalized joint prosthesis is adjusted through finite element analysis; the three-dimensional model of the implant is input into a rapid prototyping machine and printed through EBM RP technology metal 3D printing. The shape of the printed and manufactured finished product can be completely matched with that of the medullary cavity of the distal femoral metaphysic of every patient, the personalized thighbone prosthesis can be knocked to be implanted just through a few intra-operative medullary cavity files, and good initial fixation and long-time biological fixation can be achieved.

Disclosed herein are systems and methods for bone preparation with designed areas having accurate tolerance profiles to enable improved initial fixation and stability for cementless implants and to improve long-term bone ingrowth / ongrowth to an implant. A method of preparing a bone surface to receive a prosthetic implant thereon having an articular surface and a bone contacting surface includes resecting the bone surface at a first location to create a first resected region having a first tolerance profile with a first cross-section, resecting the bone surface at a second location to create a second resected region having a second tolerance profile with a second cross-section less dense than the first cross-section, and contacting the bone contacting surface of the prosthetic implant with the first resected region.

The invention discloses a fixation point calibration method and related equipment, applied to an electronic device. The electronic device comprises a display screen and a camera module, and the methodcomprises the following steps: displaying a calibration point on the display screen, and shooting fixation data of a user for fixation at the calibration point through the camera module; analyzing the fixation data to obtain a first bright spot, a first sight line feature vector and a current head posture; determining a first fixation point based on calibration data, an initial fixation point, the first bright spot, the first sight line feature vector and the current head posture; and if the function value of the distance between the first fixation point and the calibration point is smaller than or equal to a first threshold value, determining the first fixation point as an effective fixation point. By adoption of the embodiment of the invention, the accuracy of the fixation point function can be improved.

The present invention includes filter manipulation devices, filters, holders for a plurality of filter manipulation devices, and systems comprising a filter manipulation device and its holder. The system comprises a filter handling device and a holder for the filter handling device, wherein the handling device has a first tool part for initially securing and subsequently releasing a filter in the sound outlet tube or vent outlet of the hearing aid. new filter, the operating device also includes a second tool part adapted to receive and fix the used filter, the operating device also includes a clamping part that can be grasped by the user, and wherein the first and second tool parts are installed side by side and Protruding from an edge portion of the clamping portion in substantially the same direction, wherein the support for the handling device comprises at least one recess for receiving at least the edge portion of the handling device, which secures the two tool parts.

The invention provides a knee joint tibial component. The knee joint tibial component comprises a contact surface in contact with a tibial resected surface, wherein the contact surface comprises a surface protruded towards the tibial resected surface. The knee joint tibial component provided by the embodiment of the invention is provided with the surface protruded towards the tibial resected surface, therefore, the surface protruded towards the tibial resected surface, of the knee joint tibial component, is in press fit combination with a tibial resected concave surface, the aims of gradually tightening along with pressure increase is achieved, further initial fixation of a product is facilitated, and a better press fit environment is provided; bone ingrowth on a biological fixation coating or a trabecular structure of the knee joint tibial component is realized under the pressure action of endoskeleton and the knee joint tibial component, bone growth is promoted, and finally a biological fixing effect of the bone ingrowth is realized.

The invention discloses a bench vise with a long service life, which comprises a first fixed base plate and a second fixed base plate with a plurality of bolts installed inside, the upper surface of the first fixed base plate is provided with a clip with an integrated structure. A holding block, one side of the top of the clamping block is provided with a first vertical vertical plate structure integrated with it, and the other side of the top of the clamping block is provided with a second vertical vertical plate structure integrated with it, The regions formed on the opposite end surfaces of the first vertical vertical plate structure and the second vertical vertical plate structure form a clamping groove. The present invention can carry out the preliminary fixation of the thread force type on the parts, and then carry out the air pressure action on the clamped push plate, so that the excessive force caused by the radial force on the parts can be effectively resisted every time. , At this time, the device has an anti-overload mechanism, which can reduce the degree of damage to the thread structure by external force, thereby enhancing its service life.

This disclosure addresses the problem of connecting and adjusting 3D stereoscopic vision enabling devices by providing a method and apparatus for connecting and aligning SEDs in a simple and straightforward manner. Several mounting options are available in two categories, including spring clip and screw clip mounting systems. Any major stereoscopic vision enabling device can be fixed to a flat panel display (using a variety of display technologies including LCD, plasma, OLED, etc.) Devices include, but are not limited to, micropolarizers, lenticular lens arrays, microlens arrays, parallax barriers, and holographic arrays manufactured by Vrex. Once the initial fixation of the stereoscopic enabling device has been completed, a method of correct alignment for optimal 3D stereoscopic viewing is provided by using appropriate test images depending on the stereoscopic enabling device used.

The invention discloses a novel double-action hip joint prosthesis. The novel double-action hip joint prosthesis mainly comprises an acetabular cup, a polythylene liner, a locking ring and a femoral head and is characterized in that a circle of groove is formed at the bottom of the polythylene liner; firstly, the femoral head is put into a ball socket of the polythylene liner, and then the locking ring is put into the groove of the polythylene liner and is arranged at the upper end of the femoral head; and the polythylene liner is externally arranged in the acetabular cup. The novel double-action hip joint prosthesis has the beneficial effects of being capable of solving the risk problem of dislocation of the femoral head in polythylene liner, not only being convenient to implant during operation, but also avoiding the dislocation risk of the femoral head after operation; and due to adoption of the novel double-action hip joint prosthesis, relatively good initial fixation and good long-term fixation of the femoral head in the polythylene liner are achieved, and the femoral head is convenient to install.

The present invention belongs to the CAN bus circuit, and especially relates to a CAN bus automatic coding circuit. The circuit comprises a host module and a slave computer module. There are at least two slave computer modules, the slave computer modules are in cascade connection with the host module, the host module can send detection frames and an encoding command to the slave computer module, and the detection frame can detect whether the slave computer module ID is an initial fixation ID or not; the slave computer module comprises a CAN transceiver and a communication cascade switch, the CAN transceiver is provided with an external outgoing line, the CAN transceiver of the first-grade slave computer module is connected with the host through the external outgoing line, one end of the communication cascade switch is connected with the external outgoing line of the CAN transceiver of this grade slave computer module, the other end of the communication cascade switch is connected with the external outgoing line of the CAN transceiver of the next-grade slave computer module, and the slave computer module completes the automatic switching of the communication cascade switch after the encoding is completed. The CAN bus automatic coding circuit employs the communication cascade switch to realize automatic encoding to simplify the circuit and improve the encoding efficiency and has high stability. The present invention further provides a CAN bus automatic coding method.

The invention provides an external acetabulum cup and a hip joint prosthesis including the same. The external acetabulum cup includes a cup body, the cup body is provided with an external surface andan internal surface connected with the external surface, the cup body is provided with a central hole and a mounting hole which extend from the external surface to the internal surface, and the external surface of the cup body is provided with a groove around the mounting hole. The contact area of the external acetabulum cup and a fossa acetabuli is obviously increased, initial fixation and compression stability are good, long-term bone in-growth is facilitated, and the service life of the external acetabulum cup is improved.

The invention provides a shoulder-joint humerus handle prosthesis. The shoulder-joint humerus handle prosthesis includes a main handle body and strip-shaped spines; the strip-shaped spines are arranged on the outer wall of the main handle body, so that when the main handle body is implanted in the humerus marrow cavity, the strip-shaped spines are embedded in the bone cortex of the humerus marrowcavity to fix the main handle body inside the humerus marrow cavity. Therefore, initial fixation of the humerus handle prosthesis in the humerus marrow cavity can be achieved, the situation is prevented that after the humerus handle prosthesis is stressed, the position of the humerus handle prosthesis changes, and the stability of the fixed humerus handle prosthesis is effectively ensured. The problem is solved that the initial stability of a current humerus-handle-prosthesis initial fixation technology is relatively low.

The invention relates to a reinforcing connection device for a building structure, which belongs to the technical field of building. During the use of the present invention, firstly, the drill bit is screwed into the right angle to fix the device for the first time, and the screw head on the fixing rod is screwed into the screw port of the support plate to realize the second fixation of the device, and at the same time, the screw on the rod is consolidated. The clamping head snaps into the bayonet on the fixing plate to realize the integration of the device, and fix it again, and finally drive it into the main body of the building structure through expansion screws for final fixing.

The invention relates to a method for assembling flat-bulb steel on a steel slab in ship building. The method is used for fixing the flat-bulb steel to the steel slab in ship building. The method for assembling the flat-bulb steel on the steel slab in ship building includes the steps that firstly, the steel slab is placed in a construction region, the fixing position of the flat-bulb steel is scribed and determined, and anti-toppling devices are prepared, wherein each anti-toppling device is composed of a main supporting body and longitudinal supporting feet; secondly, the flat-bulb steel is hoisted to the construction region through a crane, the two anti-toppling devices are installed on the flat-bulb steel from the two ends respectively, and the flat-bulb steel with the anti-toppling devices is placed on the steel slab; thirdly, the anti-toppling devices are adjusted according to the chalk line of the steel slab so as to change the position and the angle of the flat-bulb steel, and the flat-bulb steel vertically stands on the steel slab; fourthly, spot welding operation is firstly conducted for initial fixation, the anti-toppling devices are detached after detection qualification, and further welding fixation is conducted. The method and a special tool are convenient to install and operate, safe, reliable and high in realistic value.

Implantable fasteners that can be repositioned after implantation, and implants including these repositionable implantable fasteners, have been developed. The fasteners are designed to fixate medical devices and other implantable components in the body, and can be adjusted after initial fixation in tissue to reposition the implanted medical device. The fasteners include a plurality of tissue retainers emanating from a supportive backing, wherein the tissue retainers can swivel from the plane of the supportive backing to engage tissue. The fasteners are fixated in tissue by movement in a first direction, and can be removed when pulled in a direction opposite to the first direction. The fasteners may be attached to medical devices before or after implantation. In one embodiment, the implant is a mastopexy device in the form of a mesh and the repositionable fastener.

The invention discloses a sampling device for a pathology department. The sampling body component is a detachable detachable structure. A sampling needle is provided on a coaxial sleeve in the sampling cylinder. The sampling blade assembly is provided at the end of the sampling needle. The needle slides in and out in the sampling cylinder along the axial direction of the sampling cylinder. The present invention can not only sample the pathological place conveniently, but only need to screw the sampling cylinder into the proper position according to the sampling location, and after preliminary determination, use sampling to sample the pathological location, the position of the sampling needle can be adjusted, which improves the sampling efficiency. The applicability of the device, in addition, the sampling body assembly of the present invention adopts a detachable structure, which can be easily disassembled and assembled, so as to realize the replacement of the sampling needle. When sampling pathologically, only the sampling needle needs to be replaced. The sampling body components can be reused, the replacement efficiency is high, the positioning is accurate, the sampling cost can be greatly reduced, and the convenience and accuracy of sampling can be improved.