16 results about "Ischium" patented technology

An apparatus is described herein comprising an osteotome and a sheath, wherein the proximal end of the osteotome comprises a handle, wherein the distal end of the osteotome comprises a blade, wherein an intermediate stem joins the handle and the blade, the proximal end of the sheath comprising an attachment component, wherein a surface of the distal end of the sheath comprises a hollowed region, wherein the hollowed region comprises a stem, the proximal end of the stem comprising a securing component for receiving and securing the attachment component of the sheath, the blade comprising a blade curvature, wherein a surface of the blade curvature comprises a recessed opening, the recessed opening, and the stem, the attachment component, and the securing component configured to cooperate in securing the sheath to the blade.

To provide an ischial sitting cushion, when being used for ischial sitting, expected to have a positive effect on the trunk of a user, by preventing an increase in a hip joint flexion angle or accentuating the physiological lordosis of the lumbar spine due to a lumbar support part, and by allowing the user to maintain a neutral posture with the pelvis upright by appropriately activating the user's own muscles such as deep muscle groups of the trunk without excessively depending on a support for the lumbar part.SOLUTION: An ischial sitting cushion C1 formed of a material with a prescribed strength and resilience, includes: an inclined upper plate 1; a rear base part 11 that supports the inclined upper plate 1 at a rear portion in a prescribed inclined state together with a front portion of the inclined upper plate and whose upper surface inclined downward at a prescribed angle forward, supports a user's buttocks from behind; and ischial support parts 3 and 3a that are arranged side by side at a prescribed interval on the left and right sides, and have slits 30 and 30a penetrating in upper / lower surface direction at prescribed positions of the inclined upper plate 1 avoiding the rear base part 11, to form an outer shape into an elongated oval shape that is long in the left and right directions, with their connected except for a portion of the front part.SELECTED DRAWING: Figure 1

The application provides a kind of based on deep learning's full hip joint postoperative leg length difference calculation method and system, it is related to medical technology field, can realize the accurate evaluation of the postoperative condition of the patient of full hip arthroplasty surgery, method includes: obtaining the hip image of the patient after hip arthroplasty surgery;Based on the target recognition network of deep learning, identify the bilateral femur region in hip image, ischium region, the first key point position located in bilateral femur region and the second key point position located in ischium region;According to the first key point position, second key point position and ischium region, determine the leg length difference of the patient's double legs.The system executes the method.The application is based on the hip image of the patient after hip arthroplasty surgery, calculates the leg length difference of the patient's double legs after hip arthroplasty surgery, and realizes the accurate evaluation of the recovery condition of the patient after hip arthroplasty surgery according to the leg length difference of the patient's double legs.

The present invention relates to the technical field of orthopedic medical instruments, and relates to an intramedullary nail for percutaneous pelvis internal fixation, comprising an anterior column intramedullary nail and a general intramedullary nail, and being used in cooperation with an external guide frame. A hollow channel is formed in the anterior column intramedullary nail and used for allowing an anterior column screw guide pin to pass through, and the anterior column screw guide pin allows the anterior column intramedullary nail to pass through the acetabular dome and the acetabular anterior wall to the ramus superior ossis pubis; a hollow channel is formed in the general intramedullary nail and used for allowing a transcolumn screw guide pin or a posterior column screw guide pin to pass through, and the general intramedullary nail can be used as a transcolumn screw and a posterior column screw; when the general intramedullary nail is used as a transcolumn screw, the transcolumn screw guide pin allows the transcolumn screw to pass through the acetabular dome and reach the sacroiliac joint along the interior of the greater sciatic notch without passing through the sacroiliac joint; and when the general intramedullary nail is used as a posterior column screw, the posterior column screw guide pin passes through the acetabular posterior wall to the proximal end of the greater sciatic notch without penetrating out of the cortical bone.

This product is a cushion that the user places on a chair to sit on. As shown in the plan view, perspective view, etc., the cushion has a hole in the center, and the portion behind the hole is bifurcated, allowing it to be freely opened and closed to fit the user's ischial bones. This is designed to prevent the cushion from directly contacting the ischial bones when the user is seated by creating a cavity between the hole and the bifurcated portion behind the hole. Additionally, the portion shown in the center of the front view is raised in a mountain shape, with both outer portions gently sloping from the outside to the inside. When the user sits, the shape of the front of the seat holds the user's thighs and supports the ischial bones, stabilizing the sitting posture.

The invention discloses a 3D printing Ti metal bone trabecular acetabulum reconstruction pile and an operation method thereof, the 3D printing Ti metal bone trabecular acetabulum reconstruction pile comprises a plurality of reconstruction piles corresponding to the ilium, the pubis and the ischium, and adaptive acetabular cup prostheses are arranged between the reconstruction piles; the reconstruction pile comprises a pile body, one end of the pile body is a conical head end, the other end of the pile body is a tail end, a hollow hole channel allowing a guide pin to penetrate through is formed in the pile body in the axial direction, holes are distributed in the side wall of the pile body, and the stable foundation of the acetabulum is expanded to normal sclerotin of the ilium, the ischium and the pubis. The reconstruction pile is arranged in the medullary cavity of the part to form stable support, the bone cement is connected with the acetabular cup prosthesis, the shape and degree of acetabular bone defects do not need to be considered, the method is suitable for reconstruction of all types of acetabular bone defects, and the problem that a traditional method is limited in adaptation range is solved.

The invention discloses a multi-subgroup hip joint dysplasia classification method and system, and belongs to the field of artificial intelligence. Comprising the following steps: acquiring a pelvis normal position X-ray film image of a patient, and preprocessing the image; a rough classification network is constructed, general features in the image are extracted to obtain a rough classification result for identifying the rough type of the dysplasia of the hip joint, and the general features comprise contours and textures; a fine classification network is constructed, on the basis of the graph convolution network, classification results are refined by additionally increasing expression information of anatomical key points on the basis of coarse classification results, and the anatomical key points comprise the highest point of the ilium, the outermost edge of the acetabulum, the center point of the femoral head, the teardrop point and the lowest point of the ischial tuberosity; and outputting a fine classification network result. According to the method, the system generalization can be improved while the classification efficiency and accuracy are improved.

The utility model provides an ergonomic seat. The ergonomic seat is provided with a placing surface, a bearing surface, a front supporting surface and a rear supporting surface, wherein the placing surface is a plane where the seat is placed on the ground. The bearing face is used for bearing the buttocks of the human body, and the bearing face inclines backwards and downwards. The front supporting face and the rear supporting face are located on the two sides between the placing face and the bearing face respectively, and the front supporting face is located on the face, close to the legs of the human body, between the front supporting face and the rear supporting face. According to the structure, through the angle design that the bearing face inclines backwards and downwards, the bearing face supports the hip ischium area and meanwhile guides the pelvis to incline backwards, the spine maintains the natural physiological curvature, and in cooperation with the inclined structure of the front supporting face, a guiding interface attached to the curve of the lower limb is formed so as to relieve knee fossa compression; and the anti-overturning stability of the seat is enhanced through reconstruction of a mechanical conduction path, so that the sitting posture of long-time sitting is stable, and fatigue and tiredness are avoided after long-time sitting.

The utility model provides an acetabulum front and back column through the acetabulum bottom horizontal line pull screw setting device, including the base plate, the upper surface rotationally connected with the guide piece of base plate, the base plate and guide piece are equipped with the mutual adaptation's guide channel, the guide channel can pass through the guide needle, the outside surface of guide piece is connected with the positioning structure for the close contact of ischial obturator outer edge, and the positioning structure is equipped with the adjusting part that can adjust the distance between positioning structure and guide piece, because the patient's anatomical structure has individual difference, the size, shape, front and back column's spatial position relation etc. of different patient's acetabulum are not exactly the same, the distance between adjustable positioning structure and guide piece, can make the setting device better close patient's specific acetabulum form, improve the accuracy and safety of screw setting, reduce the setting deviation caused by individual difference.

This invention discloses a combined anatomical plate and operating tools for posterior approach reduction of acetabular fractures, including a locking plate and a reduction plate. The locking plate is an arc-shaped strip plate that fits above the greater sciatic notch and has screw holes. The locking plate has a screw rod with a nut. The reduction plate includes a first plate, a second plate, and a third plate, all integrally formed and each having screw holes. The first plate is curved to fit the anatomical structure above the acetabulum. The second plate intersects with the locking plate. The third plate is curved to fit the anatomical structure of the acetabular quadrilateral. In this invention, the third plate is tightly fitted to the quadrilateral, and the first screw hole of the locking plate is fixed to the ischial tuberosity with screws. The reduction tool is used to lift and twist the reduction plate assembly. The lifting action of the third plate on the quadrilateral pulls the quadrilateral protruding into the pelvic cavity outward, achieving reduction and fixation of the central dislocation of the hip joint.

The utility model relates to a waist protection cushion for maintaining pelvis stability and lumbar vertebra physiological curvature, and belongs to the technical field of ergonomic protectors. Through a bionic curved surface and biomechanical coupling system, the cushion solves the problems of non-physiological backward movement of lumbar vertebra, sacrum suspension, insufficient biomechanical synergy and the like caused by fixed encircling type side wings and single ischial support design of a traditional waist protection cushion, and has the core innovation points that 1, a central convex curved surface adopts a composite curvature structure, so that the shape of the central convex curved surface is more than that of the central convex curved surface, and the shape of the central convex curved surface is more than that of the central convex curved surface; a lumbosacral continuous supporting area is covered, local pressure concentration is reduced, and the lumbar vertebra physiological curvature is adapted; 2, the non-encircling side wing curved surfaces allow the waist to naturally twist and laterally bend through backward gradual curvature change, so that the degree of freedom of movement is improved; 3, according to the ischium bearing area, the outer edge of the ischium tuberosity is covered by 10-15 mm through the bidirectional diffusion design, the W-shaped transverse radian and the V-shaped longitudinal radian are matched with 90% or above of the hip shape (according to GB / T 10000-2023), and pressure distribution is improved;

A seating configuration is described. The seating configuration includes a first support surface configured to support the Ischial Tuberosities of a user. The first support surface includes a feature to urge a user into an optimal position on the seat. The seating configuration includes a second support surface positioned adjacent a pelvic-sacral-lumbar region of the user. The seating configuration includes a third support surface positioned adjacent a thoracic-cervical region of the user. The first, second, and third support surfaces, respectively, together can be configured to create a natural alignment of a spinal column of the user.

The application provides a half-pelvis reconstruction prosthesis, which comprises a iliac wing fixing part, a acetabular reconstruction part, a femoral stem, a acetabular reconstruction part, a pubic reconstruction part, a pubic symphysis, an ischium reconstruction part and a femoral stem. The pubic symphysis is provided with locking teeth on one side close to the pubic apex, the locking teeth are engaged with the locking teeth on the pubic apex, and the pubic apex and the pubic symphysis are fixedly connected through a first locking screw. The application solves the technical problem that the bone reference mark is lost after half-pelvis resection, and a small deviation of the implantation position causes abnormal hip joint eccentricity, soft tissue tension imbalance and gait compensation abnormality.

The invention provides a wing-shaped arch bridge hammock type pelvic floor support, and relates to the technical field of medical supplies, the wing-shaped arch bridge hammock type pelvic floor support comprises an elastic annular supporting ring, the two sides of the annular supporting ring are used for abutting against pubis descending branch and ischium descending branch, and the front end and the rear end of the annular supporting ring are concaved inwards to form a first arc-shaped concave part and a second arc-shaped concave part; the first arc-shaped indent can be attached to the inner side face of the pubis, the end of the first arc-shaped indent abuts against the middle section of the pubis, the second arc-shaped indent can avoid the uterus, and due to the fact that the annular supporting ring and the two ends of the first arc-shaped indent are matched with the pelvic cavity, the falling probability of the pelvic floor support is reduced. The two side walls of the first arc-shaped concave part extend upwards along an arc line to form first arch bridges, the two first arch bridges are connected with the side wall of the second arc-shaped concave part, and a connecting block is arranged in a space defined by the two first arch bridges, the first arc-shaped concave part and the second arc-shaped concave part to form a hammock for supporting the anterior wall of the vagina. The top of the hammock is attached to the anterior wall of the vagina, so that the anterior wall bladder is fully supported.

The application relates to a hip joint anatomical landmark point recognition method and system, which comprises the following steps: loading three-dimensional mask data containing femur and hip bone segmentation labels, extracting a bone surface point cloud and converting the same to a physical coordinate system; automatically screening a complete data side by comparing the number of bilateral point clouds; based on the complete femur point cloud, sequentially recognizing the femoral head center, lesser trochanter, femoral neck isthmus center and femoral shaft center point through geometric fitting and extreme value search; based on the same side hip bone point cloud, recognizing the acetabular fossa center, ischial tuberosity, pubic symphysis and anterior superior iliac spine point; finally, converting the landmark points to a three-dimensional model standard coordinate system and generating a visual model. The application realizes automatic and high-precision recognition of key anatomical landmark points of the hip joint, does not require manual intervention and a large amount of training data, has strong robustness, can be directly compatible with a three-dimensional surgical planning system, and significantly improves preoperative planning efficiency and accuracy.

This device is an acupressure device for applying pressure to the pelvic floor. It is molded from a resin material with moderate elasticity, and is compact, palm-sized, with a length D1 of approximately 90 mm at its widest point and a height D2 of approximately 59 mm. The user places the device on a seat, such as a chair or the floor, sits on it, and applies pressure to the pelvic floor using their body weight. When the user sits on the device, the multiple protuberances 11-14 press from below on the left and right areas of the user's pelvic floor, bounded by the ischial ramus, ischial tuberosity, sacrotuberous ligament, anus, and coccyx. This allows the device to loosen these areas, which are areas that can be effectively used to improve urinary incontinence. Of the protuberances 11-14, protuberances 11 and 12 correspond to the user's left pelvic floor, and protuberances 13 and 14 correspond to the user's right pelvic floor. Additionally, the bottom surface of this product, which is the surface that rests on the seat, is formed convexly in the front-to-back direction of the user when they are sitting on the product. This induces forward and backward tilt of the pelvis, allowing the user to naturally apply appropriate pressure to the left and right pelvic floors to massage and loosen them. The front and back directions of the user when using this product are indicated by the arrows in "Reference Figure 2 Showing the Names and Sizes of Each Part." The symbols in the above explanation are attached to "Reference Figure 1 Showing the Names and Sizes of Each Part" and "Reference Figure 2 Showing the Names and Sizes of Each Part."