15 results about "Bone positioning" patented technology

A system for detecting motion between an implant and a bone that can optionally include: a bone locator means configured to be coupled to the bone, an implant attachment means configured to be coupled to the implant, and a data analysis means. The implant attachment means includes a detection means, and the implant attachment means defines one or more apertures or surfaces for receiving a force from a force inducing means.

The invention is suitable for the technical field of medical image processing and artificial intelligence, and provides a urinary system tumor bone metastasis diagnosis method based on deep learning and bone positioning, and the method comprises the steps: collecting and preprocessing multi-modal medical data containing PET / CT images; segmenting a skeleton region by adopting a deep learning model, and realizing focus segmentation in the skeleton region; a lightweight skeleton segmentation network is constructed, and efficient and fine skeleton segmentation is realized through an encoder-decoder structure; pET metabolic features, CT morphological features and texture features are extracted and fused, and a radiomics feature matrix is constructed; carrying out cancer species specificity analysis based on the radiomics characteristic matrix, and constructing an intelligent diagnosis model by utilizing a machine learning algorithm; and finally, outputting a structured report containing the focus position, the type, the cancer classification and the diagnosis confidence. According to the invention, through lightweight network design and multi-modal feature fusion, the efficiency and accuracy of skeleton segmentation and focus diagnosis are significantly improved, and the method is suitable for clinical real-time auxiliary diagnosis.

The application relates to a medical orthopedic quick drill bit, which comprises a drill bit body composed of a drill bit part and a drill rod part, wherein the drill bit part is provided with circularly arranged cutting edges for bone positioning and hole forming, and the drill rod part is designed as a light rod; a connecting piece is connected with the drill bit body at one end and fixed with a driving piece at the other end, and the two are quickly separated through a split device containing a clamping piece and a disengaging piece, so that safe disconnection is ensured when the pressure of the medullary cavity or cancellous bone is abnormal. The application has the technical effects of improving the operation efficiency, enhancing the safety and reducing accidental injuries.

The invention relates to the technical field of orthopedic surgery medical instruments, and discloses a surgical tibia reduction support which comprises a bottom connecting plate, the upper portion of the bottom connecting plate is movably sleeved with a first telescopic rod, the end of the first telescopic rod is fixedly connected with a connecting plate, and the upper portion of the connecting plate is fixedly connected with a second telescopic rod. According to the tibia reduction support for the operation, a first round bone needle and a second round bone needle are installed in a bone, a second inclined rod and a first telescopic rod are sequentially connected to the outer portion of the first round bone needle and the outer portion of the second round bone needle in a sleeving mode, the first inclined rod and the first telescopic rod are installed on the two sides of a leg, and meanwhile a telescopic adjusting plate is rotated to adjust the angle of equipment; the first telescopic rod and the second telescopic rod installed at the two ends of the thigh are synchronously rotated, the length of the first telescopic rod and the length of the second telescopic rod are adjusted and controlled, the first telescopic rod and the second telescopic rod can drive the fracture part to be stretched, and therefore the staggered bone is driven to be stretched and positioned, and the bone positioning accuracy is improved.

This invention relates to the field of sand core forming, and more particularly to a method for manufacturing an ultrathin annular air duct core. Addressing the problems of poor core bone positioning accuracy in existing technologies, which easily leads to core bone leakage during sand filling and thus scrapping of handmade cores, this invention provides a method for manufacturing an ultrathin annular air duct core. This method is simple to operate, facilitates core bone forming, and achieves relatively accurate dimensions, making it suitable for forming small-sized handmade cores with small sand volumes. The mesh-like core bone dimensions provide sufficient support strength for thin-surface sand cores; the core bone positioning is accurate, preventing core bone misalignment; the core bone is welded using a 3D-printed sand mold, resulting in precise core bone dimensions, suitable for handmade core production with very small sand volumes and where core bone drawings are inconvenient to annotate.

The invention relates to a radiological imaging method, said method comprising a vertical scanning of a standing patient (20) by two radiological sources orthogonal to each other in two imaging directions along a vertical scanning direction (Z), wherein said radiological method comprises at least one operating mode in which: a frontal scout view is obtained to identify a specific skeletal location (21) within said frontal scout view, the driving current intensity and voltage intensity of said frontal radiological source are simultaneously adjusted (11), preferably automatically synchronized, as a function of the patient thickness and of said identified specific skeletal location (21) along said vertical scanning direction (Z), to improve the compromise between: reducing the overall radiation dose received by the patient (20) during said vertical scanning, and, for the frontal image, increasing the local image contrast of said identified specific skeletal location (21) at different imaging locations along said vertical scanning direction (Z).

The application relates to an orthopedic drilling device for preventing soft tissue injury, which comprises an inner cylinder and an outer cylinder; the inner cylinder is slidingly matched to the inner side of the outer cylinder, and a guide channel for a drill bit is formed in the inner cylinder; the bottom of the outer cylinder is provided with a positioning assembly for positioning the device on a target bone and a protection assembly for protecting soft tissues around the bone, and the outer wall of the outer cylinder is further provided with a fitting assembly for fitting a skin surface; a transmission assembly is arranged on the positioning assembly, and the transmission assembly is used for synchronously driving the protection assembly to outwardly expand in the stroke of a bone positioning action of the positioning assembly, so as to form a soft tissue shielding barrier around a drilling area. The application is used for realizing bone fixation and soft tissue protection through a mechanical linkage structure, and can improve the operation safety and accuracy and simplify the operation process.

A system for detecting motion between an implant and a bone that can optionally include: a bone locator means configured to be coupled to the bone, an implant attachment means configured to be coupled to the implant, and a data analysis means. The implant attachment means includes a detection means, and the implant attachment means defines one or more apertures or surfaces for receiving a force from a force inducing means.

The application discloses a shoulder lock joint dislocation minimally invasive reduction threading kit in the technical field of fracture threading reduction, which comprises a hooking wire clamp, a ring rotating hook rod, a threading clamp and a clavicle clamp. The hooking wire clamp is in a scissor-shaped structure capable of being opened and closed and is formed by connecting two straight rods through a rotating shaft. The two straight rods of the hooking wire clamp are both provided with holding handles at rear ends. The front end of one straight rod of the hooking wire clamp is rotatably connected with the ring rotating hook rod. The front end of the other straight rod of the hooking wire clamp is provided with the threading clamp. After the coracoid process of the scapula and the clavicle are positioned, the threading clamp can be used to stably penetrate along a rotating path into the bone to be positioned, so that the bone to be reduced can be precisely and quickly threaded. Because the holding is convenient and the stress is stable, the muscle and ligament are not easily disturbed, so that the device can conveniently and stably position the bone to be positioned and thread and wind.

The application discloses a wrist joint prosthesis, relates to the technical field of medical devices, and comprises a carpal bone connecting assembly, a radius connecting assembly and a locking structure; the carpal bone connecting assembly comprises a carpal bone bracket, a carpal bone pad in sleeve joint with the carpal bone bracket, a carpal bone positioning column in separable plug joint with the carpal bone bracket and two bone screws for being connected with carpal bones, the screw caps of the bone screws are in sliding joint with straight through holes on the carpal bone bracket, and the carpal bone bracket is in separable connection with the bone screws through the locking structure; the radius connecting assembly comprises a radius bracket and a radius extension handle, the radius bracket is in separable connection with the radius extension handle through a clamping structure, and the radius bracket is provided with a circular arc surface matched with the carpal bone pad. The application is convenient and reliable to use, and is convenient for local structure adjustment or replacement in a later surgery process.

The present application relates to the technical field of medical equipment, in particular to a fracture proximal end fixing device for lower limb long bone fracture reduction. The fracture proximal end fixing device for lower limb long bone fracture reduction comprises a positioning mechanism, a clamping mechanism and a guide connecting piece connecting the positioning mechanism and the clamping mechanism; the positioning mechanism is provided with a first auxiliary Kirschner wire for rough positioning of a fracture area; the guide connecting piece is rotatable around the axis of the first auxiliary Kirschner wire; the clamping mechanism comprises a main Kirschner wire and a clamping piece, the clamping piece is provided with a clamping space for accommodating the fracture area, and one end of the main Kirschner wire extends into the clamping space for fine positioning of the fracture area. The bone positioning device can be used for long bone fracture reduction, meets the mechanical and precision requirements of long bone fracture reduction, and realizes stable fixation of the long bone fracture proximal end holding in combination with the clinical requirements; and can solve the problems of unstable holding, occupation of too much surgical space resources and damage to fracture blood supply of the current device.

The invention relates to the technical field of mutton bone sawing machines, and provides a mutton stainless steel double-speed bone sawing machine which comprises a base, the top of the base is fixedly connected with a cutting table through a supporting rod, the top of the cutting table is fixedly connected with a blocking base, and a discharging groove is formed in the end, close to the blocking base, of the base in an embedded mode; the sheep bone positioning assembly is assembled at the top end of the base and used for positioning and pushing sheep bones; the protection assembly is assembled between the blocking base and the sheep bone positioning assembly and used for being matched with the blocking base to form anti-sputtering protection during sheep bone slitting; and the bone sawing assembly is assembled at the top end of the base. By means of the technical scheme, the technical problems that in the prior art, most saw blades are exposed on a cutting table top, in the process that a person pushes sheep bones, hands slip or other errors are prone to occurring, limbs of the person make direct contact with the saw blades, and serious personal injury accidents are caused are solved.

Surgical systems and methods for delivery of cement to a target bone involve a robotic manipulator that supports a delivery device. The delivery device has a distal tip with an opening through which cement can be delivered to the target bone. A localization system and / or imaging system obtain images of the delivery device and the target bone to track positions of the delivery device and the target bone. Controller(s) utilize the tracked positions to determine a control parameter for the robotic manipulator and / or the delivery device, the control parameter relating to delivery of cement to the target bone.

The invention provides an adjusting jig for an endoscope pull wire, and relates to the technical field of endoscopes. According to the adjusting jig for the endoscope pull wire, the pull wire of the endoscope can be quickly tensioned and adjusted, and the assembling consistency of the pull wire of the endoscope can be improved. The adjusting jig for the endoscope pull wire comprises a base body, a snake bone positioning assembly, a main body positioning assembly and an adjusting assembly. Wherein the snake bone positioning assembly is arranged on the base body, the snake bone positioning assembly is provided with a clamping part, and the clamping part is used for containing a snake bone and limiting movement of the snake bone; the main body positioning assembly is arranged on the base body and is provided with a containing part, and the containing part is used for containing and fixing the operating handle; the adjusting assembly is arranged on the side, away from the snake bone positioning assembly, of the main body positioning assembly on the base body, the adjusting assembly is provided with a fixing part matched with a pull wire of the endoscope, and the fixing part can move relative to the base body in the arrangement direction of the adjusting assembly and the main body positioning assembly so as to apply pull force to the pull wire.

The present application belongs to the field of minimally invasive correction of hallux valgus, and specifically discloses a foot hallux valgus osteotomy guide plate, which comprises an osteotomy pre-guide plate and an osteotomy post-guide plate; the osteotomy pre-guide plate comprises a guide plate body, a distal end, a proximal end, a metatarsal bone distal end positioning needle guide column hole, an osteotomy groove, and a wedge bone positioning needle guide column hole; the osteotomy post-guide plate comprises a guide plate body, a distal end, a proximal end, a metatarsal bone distal end fixing clamp, a metatarsal bone distal end positioning needle guide column hole, an osteotomy post-fixed screw guide nail channel, and a wedge bone positioning needle guide column hole. Compared with the prior art, the osteotomy line position obtained when the osteotomy pre-guide plate is used is the preoperative accurate planning direction, and the osteotomy pre-guide plate has small trauma and high accuracy; the osteotomy post-guide plate can be used to screw fix the metatarsal bone distal end along the preoperative planning position after the osteotomy is completed, the operation process is minimally invasive, and the consistency and accuracy of the positions before and after the osteotomy are ensured, the process of repeated adjustment and perspective is avoided, the operation time is saved, and the radiation exposure is reduced.