86 results about "Arthroplasty replacement" patented technology

The invention relates to a hip joint prosthesis peripheral fracture steel plate cable binding and fixing device which comprises a head portion at the near end and a body portion at the far end, and the head portion and the body portion are integrally arranged. The inner surfaces of the head part and the body part are arc-shaped curved surfaces which are tightly attached to the outer surface of the thighbone of a human body; the head is of an anatomical structure matched with the physiological appearance of the outer side face of the greater trochanter of the femur. The body part is of an anatomical structure matched with the physiological shape of a thighbone body at the proximal end of the thighbone; at least one clamping hook is arranged at the near end of the head part, and the clamping hook is in an anatomical radian shape attached to the outer side of the top end of the major trochanter; and the body part is provided with a plurality of lock hole structures. The device is placed on the outer side face of the femur with the vertex of the greater trochanter as a mark; the device is suitable for patients who fail in internal fixation in a proximal femur fracture operation and need revision and suffer from fracture around a femur prosthesis after a joint replacement operation, at least one clamping hook is specially arranged at the proximal end of the head, a fracture block can be grabbed through the clamping hook, and reduction failure is avoided.

A robot-aided knee arthroplasty system includes a robotic device and a controller communicable with the robotic device. The controller is configured to control the robotic device to apply a force configured to increase a gap distance between a femur and a tibia of a knee joint and collect measurements of the gap distance between the femur and the tibia as the robotic device applies the force.

An intraoperative surgical system can be used for knee arthroplasty. The system may include a sensor support body defining a platform, a force sensor positioned on the platform, and a sensor cover positioned over the platform of the sensor support body thereby sandwiching the force sensor between the platform and the sensor cover. The sensor cover can be detachably coupled to the sensor support body. The platform, the force sensor, and the sensor cover can collectively define a joint insertion block configured to be inserted into a tibiofemoral joint for measuring a force between a tibia and a femur defining the tibiofemoral joint.

The application discloses a kind of postoperative image index automatic measurement methods of hip arthroplasty, belong to medical image processing technical field, first obtain original data set;Marking is obtained to obtain segmentation data set and key point detection data set, and image data is carried out data enhancement and data preprocessing;Using segmentation model, segmentation data set is handled to obtain region of interest;Using key point detection model combines Gaussian heat map regression method to detect key point in region of interest image;Finally, according to the position of key point, the four parameters of patient after hip arthroplasty are calculated, to accurately evaluate the condition of patient after hip arthroplasty surgery is carried out.The application uses deep learning measurement method to automatically measure some important indexes quickly, accurately and with high repeatability, solves the pain point of manual labeling, saves manpower and time, has excellent reliability and accuracy, and has application value for clinical diagnosis.

The invention provides a risk prediction method for intermuscular venous thrombosis of a knee arthroplasty patient. The method comprises the following steps: acquiring potential risk factors of intermuscular venous thrombosis of a research object; carrying out single-factor analysis on the potential risk factors, and screening single-factor variables which are strongly related to the formation of the intermuscular venous thrombosis of the research object; analyzing Plt in the single factor; 0.2 single factor variables are incorporated into multivariable logistic regression analysis, independent risk variables, significantly related to intermuscular venous thrombosis, of a research object are screened, and a risk prediction column graph model of intermuscular venous thrombosis of the research object is constructed; and performing distinction degree, calibration degree and clinical adaptability test on the column graph model. By constructing the inter-muscular venous thrombosis column diagram risk prediction model of the knee joint replacement patient, the occurrence risk of inter-muscular venous thrombosis of the knee joint replacement patient can be specifically evaluated and predicted.

The utility model provides a hip replacement post-operation horizontal position supporting pad. The pad comprises a pad body; the pad body is made of latex and comprises a convex part and a concave part; the upper surface of the pad body is a curved surface in smooth transition; the upper surface of the convex part corresponds to the curve of the waist of a subject; the upper surface of the concave part corresponds to the curve of the buttocks of a subject; a first cutting groove which is through up and down is formed in the concave part in the length direction of the pad body so as to correspond to the sacrococcygeal region of a subject; a second cut groove which is through in the front-back direction is formed in the concave part in the front-back direction of the pad body, and the second cut groove is used for clamping the urinal pad. The waist is supported by the convex part, and the hip is supported by the concave part, so that the waist can be in a natural posture when a subject lies on the back; a first cutting groove is formed corresponding to the sacrococcygeal part, so that the sacrococcygeal part of the subject is suspended and cannot be pressed; according to the horizontal position supporting pad used after hip replacement, the urinal pad can be clamped in the second cutting groove, and the urinal pad is prevented from forming wrinkles on the bed surface.

The utility model relates to the technical field of medical care, and discloses an adjustable brace for dislocation fixation after hip replacement in the orthopedics department, which comprises a hollow connecting pipe, the left end of the hollow connecting pipe is detachably connected with a telescopic rod, and the right end of the hollow connecting pipe is detachably connected with a rod piece. The ends, away from each other, of the telescopic rod and the rod piece are provided with ankle fixing mechanisms. Wherein the ankle fixing mechanism comprises a connecting side column, one end of the connecting side column is fixedly mounted at the other end of the telescopic rod or the rod piece, a [-shaped mounting plate is mounted at the other end of the connecting side column, and an annular positioning plate is fixedly mounted at the other end of the [-shaped mounting plate. The nursing bed is firm in fixation, has an adjusting function, is better in applicability, is simple to operate, is convenient to nurse, and is practical and reliable.

The utility model discloses a hip replacement post-operation dual-purpose body position pad which comprises a first body position pad, a second body position pad is arranged on the right side of the first body position pad, sponge pads are filled in the first body position pad and the second body position pad, and zippers are fixed on the lower end face of the first body position pad and the lower end face of the second body position pad. The first magic tape hook surface is fixed on the lower end surface of the first body position pad, and a second magic tape hook surface is fixed on the right side of the first body position pad; and the first magic tape rough surface is fixed on the lower end surface of the second body position pad. According to the dual-purpose body position pad used after hip replacement, when the lower limb is kept in the abduction neutral position in the horizontal position, the shank is lifted to relieve postoperative edema and promote venous return of the lower limb, and turning over towards the healthy side, the second function of the body position pad is applied, the pad is arranged between the two legs in the side-lying position, the distance between the two legs is fixed, and the distance is kept stable; excessive internal rotation, adduction and excessive hip bending of the affected limb in the healthy side lying position are avoided, and the comfort of a patient and the stability of the body position of the patient are effectively guaranteed.

The invention relates to the field of intelligent detection, and provides a nursing system and method for elderly hip replacement patients. According to the method, electrocardiogram data, time queue data of non-invasive blood pressure, time queue data of pulse blood oxygen saturation, time queue data of end-expiratory carbon dioxide and time queue data of body temperature of a patient in the operation process of old-age hip replacement are analyzed in real time, and then whether the physiological state of the patient in the operation is stable or not is judged. Therefore, a more objective evaluation result can be obtained, the risk of subjective judgment is reduced, potential unstable risks can be found based on real-time analysis, and then a timely intervention basis is provided for medical staff.

The utility model discloses a body position pad used in hip replacement, which comprises a pad body used for supporting lower limbs; wherein a concave limiting part is arranged at the position, opposite to the knee joint, of the pad body. According to the utility model, the pelvis can be maintained in a neutral position, so that the risks of pelvis inclination, unequal length of limb functionality and the like after an operation are reduced.

Arthroplasty components include an articular surface and a bone-facing surface. The bone-facing surface bears at least one anchoring element adapted for an oblique implantation trajectory. The articular surface includes a larger radius of curvature in the superior-inferior direction than in the anterior-posterior direction. An inferior chamfer may be present on the articular surface. Instruments and implantation methods are also disclosed. Reamers include reamer heads coupled to various offset shaft configurations.

The present invention relates to a tibial sensor pin insertion guide for robotic total knee arthroplasty and, in particular, comprises: a tibial contact part configured such that the bottom surface contacting the medial slope of the tibia is inclined upward at an angle of 30-40 degrees on both sides with respect to a center line; and a first pin insertion tube formed to penetrate the posterior side of the tibial contact part and to be inclined upward at an angle of 45-55 degrees with respect to the longitudinal direction of the tibial contact part. The present invention has the effect of preventing the sensor pin inserted into the tibia to mount a sensor during robotic total knee arthroplasty from damaging the peroneal nerve passing through the outer side of the tibia during the insertion process.

The invention relates to an anti-dislocation electric axis turning bed after hip replacement, which belongs to the technical field of medical instruments and comprises an electric control lifting bed frame, an automatic axis turning bed plate, a body position fixer and a central controller. According to the anti-dislocation electric axis turning bed, the anti-dislocation electric axis turning bed is provided with an automatic turning structure, an axis limiting and fixing structure and an auxiliary bearing structure at the same time, and the automatic axis turning bed board is combined with the body position fixator, so that different requirements of left and right sleeping postures of a patient can be met at the same time; and stable limiting is carried out to ensure automatic turning-over steering without deflection of the central axis, so that the operation of turning over a patient is greatly simplified, dislocation of hip joints is avoided, and the safety of postoperative turning-over is greatly improved.

The present application relates to hip replacement technical field, and disclose a kind of hip replacement post anti-dislocation positioner and its using method, including mounting frame, further comprising: fixed component, fixed component includes screw hole rod, the end of screw hole rod is rotatably connected with the surface of mounting frame, and the inner wall of screw hole rod is threadedly connected with threaded rod;Protection component, protection component includes telescopic plate, and the end of telescopic plate is fixedly connected with round hole rod, and the inside of round hole rod is sleeved with semicircle frame.The surface of mounting frame of the present application is provided with fixed component, and fixed component can be tied at the torso of patient, after fixed component is fixed at the torso of patient, protection component can be positioned, after protection component is fixed, it is pushed to move downward, when protection component moves downward, it will contact with the hip joint of patient and position hip joint, avoid hip joint to appear the condition of falling off, inside protection component is provided with stabilizing component, when protection component is sleeved at the hip joint of patient.

A robotic surgical system can include an end effector coupled to a robotic arm. A reamer operable to ream bone can be coupled to the end effector (e.g., via a retainer). The reamer can include a primary driveshaft and a cutting head. The primary driveshaft can be rotatable about a first axis of rotation and the cutting head can be rotatable about a second axis of rotation, for example parallel to and offset from the first axis of rotation.

The invention relates to the field of postoperative rehabilitation instruments, and particularly discloses a hip replacement postoperative dislocation prevention cushion structure which comprises a cushion mechanism and a limiting frame mechanism. The seat cushion mechanism comprises a seat cushion assembly, a fixing shaft bracket assembly is arranged at the bottom of the seat cushion assembly, and a pawl assembly is installed on the outer side of the fixing shaft bracket assembly; the limiting frame mechanism comprises a limiting frame assembly rotationally installed on the fixing shaft frame assembly. By arranging the rotatable limiting frame body and the locking structure matched with the ratchet wheel and the pawl, reliable guarantee can be obtained when a hip replacement postoperative patient uses the cushion, after the patient sits, the handle is pulled in the direction of the cushion body, the shaft rod drives the ratchet wheel to rotate, and the limiting frame body is lifted accordingly; after reaching a proper position, the pawl body abuts against the ratchet wheel under the action of the first spring, and reverse rotation of the ratchet wheel is effectively limited; and through the linkage design of the pull rope assembly and the pawl assembly, the laying-down operation of the limiting frame body is extremely simple and convenient.

The present disclosure provides an implant, a corresponding method of implantation, and a method of using the same that can be used in orthopaedic joint replacement arthroplasty or hemiarthroplasty and / or an orthopaedic joint resurfacing arthroplasty or hemiarthroplasty. The implant can include a fin portion for receipt in a corresponding slot formed in bone, and the fin portion can support an articulation portion that can be used in resurfacing and replacing portions of articulation surfaces of a joint.

The invention discloses a hip replacement post-operation anti-falling device, which comprises two positioning plates, a clamping fixing piece and a binding fixing piece, and is characterized in that the two positioning plates are arranged on a bed surface in a left-right opposite manner; the number of the clamping and fixing pieces is two, and the two clamping and fixing pieces are arranged on the two positioning plates correspondingly and used for being clamped and fixed to a bed body. The binding fixing part comprises a plurality of binding blocks and a plurality of locking parts, the binding blocks are sequentially hinged to form a strip shape through a center shaft, the two binding blocks at the head and the tail are fixedly connected with the ends of the inner sides of the two positioning plates respectively, one locking part is arranged between every two adjacent binding blocks, and the locking parts are fixedly connected with the locking parts. And the locking piece is used for locking the angle between the two binding blocks.

The present disclosure provides an implant, a corresponding method of implantation, and a method of using the same that can be used in orthopaedic joint replacement arthroplasty or hemiarthroplasty and / or an orthopaedic joint resurfacing arthroplasty or hemiarthroplasty. The implant can include a first fin portion and a second fin portion for receipt in a first slot and a second slot, respectively formed in bone, and the first fin portion and the second fin portion can support an articulation portion that can be used in resurfacing and replacing portions of articulation surfaces of a joint.

Stemless components and fracture stems for joint arthroplasty, such as shoulder arthroplasty, are disclosed. Also, methods and devices are disclosed for the optimization of shoulder arthroplasty component design through the use of medical imaging data, such as computed tomography scan data.

The utility model discloses a hip replacement post-rehabilitation training device, which comprises a training frame body, the training frame body comprises an adjusting mechanism, a limiting mechanism and a supporting mechanism, the limiting mechanism comprises adjusting legs, a placing block, a limiting strip and a limiting block, the rear ends of the two adjusting legs are both rotatably connected to the two sides of the front surface of the training frame body, and the supporting mechanism is arranged on the front surface of the training frame body. Sliding grooves are formed in the front faces of the two adjusting legs, the outer sides of the containing blocks are slidably connected to the inner walls of the sliding grooves, moving grooves are formed in the sides, away from the center, of the two adjusting legs and extend to the inner walls of the sliding grooves, and the outer sides of the limiting blocks are slidably connected to the inner walls of the moving grooves. The hip joint rehabilitation training device has the advantages that through an adjusting block, an electric sliding rail and a Y-shaped supporting rod in the adjusting mechanism, the height and the angle of the training device can be accurately adjusted according to specific conditions and rehabilitation requirements of a patient, a personalized rehabilitation training scheme is provided, and recovery of hip joint functions is facilitated.

The invention discloses a non-invasive positioning method for pelvis and lower limbs in hip replacement. The non-invasive positioning method comprises the following steps: 1, calibrating a flexible multi-array strain sensor at pelvis skin; 2, acquiring strain intensity information, attitude information and space information of the sensor; 3, standardizing the timestamps of the collected information; 4, setting a data acquisition time interval; 5, calculating a strain tensor change rate, a relative displacement change rate and an attitude difference angle; 6, the trend degree and the dispersion degree of the sum are obtained; 7, calculating a skin sliding index SI and a skin deformation index DI; 8, respectively setting an SI threshold value and a DI threshold value and comparing; 9, calculating the length variation between the nodes of the sensor array; 10, performing spatial position compensation according to the step 8; and 11, repeating the steps 2-10 to carry out space information compensation on the femur until positioning is stopped. According to the invention, the identification and compensation of the motion artifacts of the optical marker in the operation are realized, and the accuracy and stability of navigation in the operation are improved.

The utility model discloses a hip replacement postoperative patient getting-out-of-bed assisting device. The hip replacement postoperative patient getting-out-of-bed assisting device comprises a base unit and a seat unit. The base unit comprises a base body and a cylindrical stand column. The stand column is vertically formed on the base body. The seat unit comprises a seat plate, a backrest and a side plate; the rear side of the seat plate is integrally connected with the lower side of the backrest; the side plates are vertically arranged on the seat plate and the backrest; through holes are formed in the upper parts of the side plates; an insertion rod is mounted in the through hole; the first end of the insertion rod extends out of the first side of the side plate, and the second end of the insertion rod extends out of the second side of the side plate; a blocking head is formed at the first end of the inserting rod, and a coil spring is installed between the blocking head and the first side of the side plate. A buckle head is formed at the second end of the insertion rod and used for being buckled on the inner side of the thigh of the operated limb of the subject; the second side of the side plate is used for supporting the outer side of the thigh of the operated limb of the subject; a circular-tube-shaped stand column insertion tube is formed on the base plate. The upper end of the stand column of the base unit is rotatably inserted into the stand column insertion tube of the seat unit.

The utility model discloses a joint replacement post-operation pressurizing leg sleeve with pressure gradient, which belongs to the technical field of knee joint post-operation medical equipment, and comprises a belt body, the belt body is provided with two first side edges which are oppositely arranged, and the two first side edges extend along a first direction; the belt body is provided with a plurality of air cavities distributed in the first direction. The air pressure values in the plurality of air cavities are increased or decreased in a gradient manner along the first direction; matched connecting assemblies are arranged on the two first side edges, the two first side edges can be connected through the connecting assemblies to enable the belt body to form a sleeve body, and a containing cavity is formed in the sleeve body. An observation hole communicated with the accommodating cavity is formed in the middle of the belt body; the plurality of air cavities are distributed on the belt body along the first direction, and the air pressure values of the plurality of air cavities are changed in a gradient manner along the first direction, so that gradient pressure conforming to physiological laws can be applied to veins of limbs, the flowing speed of venous blood is increased, the backflow of the venous blood is promoted, blood circulation and incision healing are facilitated, postoperative edema is relieved, and the postoperative healing effect is improved. Phlebothrombosis is prevented.

The utility model discloses a kind of knee joint replacement postoperative rehabilitation pressing devices, including stand, one end of the stand is movably connected with movable seat, one end of the movable seat is fixedly connected with lifting seat, the both sides of the lifting seat are movably connected with telescopic plate, one end of the telescopic plate is fixedly connected with boom, the utility model has beneficial effect, first power mechanism, second power mechanism, third power mechanism and inflation mechanism are respectively driven by controller to operate, so that two groups of fixed rods can be clamped to the calf and thigh in the air, its knee is located in the just below lifting seat, finally again through first power mechanism drive lifting seat slowly lift, lifting lifting seat pushes the lifting of hanged clamping seat, clamping seat drives the lifting of connected clamping plate, clamping plate can repeatedly press the leg of clamping, structure is reasonable, it is convenient for automatic pressing of leg, less manual labor, it is convenient to adjust simultaneously, it is convenient for different body size patient to be clamped and pressed.

Disclosed herein are computer-implemented methods, and systems for performing such a methods, comprising: obtaining values for one or more non-modifiable risk factors of a patient; obtaining first candidate values for one or more modifiable risk factors of the patient; obtaining second candidate values for the one or more modifiable risk factors of the patient, wherein the second candidate values are determined to maximize the likelihood that the dislocation results from the arthroplasty procedure; determining a personalized risk interval that represents a range of modifiable risk for the patient with respect to the arthroplasty procedure, including determining (i) a lower bound for the personalized risk interval and (ii) an upper bound for the personalized risk interval; and providing an output indicative of the risk interval.

The invention discloses a joint replacement bone cement uniform smearing device and a using method thereof, and belongs to the technical field of joint replacement. Comprising a drug delivery assembly, a coating assembly is arranged at the bottom of the drug delivery assembly, the drug delivery assembly comprises an injection tube, a communicating head is arranged at the bottom of the injection tube, the coating assembly comprises an exhaust cavity, a communicating port is formed in the top of the exhaust cavity and connected to the outer side of the communicating head in a clamped mode, and a communicating part is arranged at the bottom of the exhaust cavity. A doctor blade is fixedly installed at the bottom of the communicating part, the doctor blade is of a hollow structure, an administration groove is formed in one side of the lower end of the doctor blade, a uniform coating strip is fixedly installed at the bottom of the doctor blade, the doctor blade and the uniform coating strip are both made of medical silica gel, and the hardness of the doctor blade is larger than that of the uniform coating strip. A flow guide groove is transversely formed in the outer side of the uniform coating strip; according to the bone cement smearing device, bone cement can be conveniently and evenly smeared to the surface of a joint platform, bubbles mixed in the bone cement can be eliminated, and the high practical value is achieved.

A surgical implant opening insert for use in a surgical implant system, and a surgical implant system for use in arthroplasty, comprising an opening and the surgical implant opening insert, are provided. The insert can increase the surface area of ​​the surgical component available for bone regrowth and provide fitting means to allow the use of different fixation devices within the opening.

A safety broach for use in arthroplasty for hip joints, and a system including the same. The system may further include a segmented or otherwise flexible reamer and an implant. The safety broach includes a hollow interior passage that serves to guide the reamer when the safety broach is in place in the bone. The system may include any number of sizes of safety broaches, segmented reamers, and implants. In any case, such a safety broach may be capable of assisting with arthroplasty for hip joints (or any other joint), while typically providing enhanced safety and reliability of the arthroplasty.

The present invention provides an apparatus for sensing the pressure on the body of a patient on an anterior hip table or a standard surgical table. The pressure monitoring post provides a warning indicator when the pressure exceeds a predetermined value that is related to pressure related injuries. The pressure monitoring post may also provide for a center and two lateral pressure sensors to detect the pressure resulting on a patient's body during various processes related to hip distraction for arthroscopy and arthroplasty procedures.