51 results about "Femur neck fracture" patented technology

The invention discloses a bone connecting device for treating femoral neck fracture. The bone connecting device comprises a bone connecting plate, wherein the bone connecting plate comprises a bone connecting plate upper part and a bone connecting plate lower part which are connected in sequence; the bone connecting plate upper part is outwards and obliquely arranged at the upper end of the bone connecting plate lower part, and the middle of the bone connecting plate is thicker than the two ends of the bone connecting plate; the bone connecting plate upper part is provided with three sleeves arranged in an invertedly triangular manner, and hollow screws are arranged in the sleeves; threads are formed in the front ends of the hollow screws, and no threads are formed in the rear parts of the hollow screws; during use, the hollow screws are obliquely arranged in the femoral head through the femoral neck from the greater trochanter; the threads are fixed in the femoral head, the rear parts of the hollow screws are connected with the femoral neck and the sleeves in a sliding manner, and locking screw holes locked with fixing screws in a thread manner are formed in the bone connecting plate lower part. Therefore, the fracture part can be pressurized in a femoral neck healing process, the fracture line is reduced, the blood supply rebuilding of the femoral neck fracture end becomes possible, the angular stability is relatively good, the fracture displacement can be prevented, and the occurrence rate of femoral head necrosis is reduced.

The invention belongs to the technical field of surgery equipment for orthopaedics, and relates to a first quasi type hollow nail minimally invasive mechanical transplanting system based on a femoralneck surgical central axis. The first quasi type hollow nail minimally invasive mechanical transplanting system comprises a nail feeding point positioning guider, a femoral neck front cortex key pointtranscultural positioning device, a first quasi type femoral neck surgical central axis minimally invasive mechanical navigation system, and a femoral neck hollow nail guide pin positioning and orientating combined slide module. According to the first quasi type hollow nail minimally invasive mechanical transplanting system disclosed by the invention, the nail feeding point positioning guider, anisthmus center point transcultural positioning device and the first quasi type central axis mechanical navigation system are adopted, and the hollow nail guide pin positioning and orientating slide module is combined for use, so that procedures of femoral neck surgical central axis determination, first quasi type guide pin transplantation, hollow nail positioning, orientating and transplanting, and the like can be completed, the situation that the guide pin and the hollow nail can be successfully transplanted in one time can be effectively realized, the distance precision of the guide pin canbe effectively controlled, iatrogenic accidents easily caused by manual operations are avoided, the incidence rate of the iatrogenic accidents is reduced, the success rate of a surgery is effectivelyincreased, and a base is established for hip preserving treatment of femoral neck fracture.

The invention discloses a biotype artificial hip joint surface replacement prosthesis comprising a hemispheric prosthesis cap, which is cooperated with the shape of the caput femoris and is disposed on the caput femoris; a carrying steel plate, which is fixedly disposed on one side of the tuberosity of the caput femoris; a carrying column; an inserting column; a main bolt used for fixing the carrying column; and at least one auxiliary bolt. The invention can be used to prevent the loosening of the prosthesis and the fracture of the femoral neck around the prosthesis effectively.

The invention discloses an internal fixation anti-slip locking bone fracture plate applied to a femoral neck fracture. The bone fracture plate comprises a fixing part and a supporting part which are of an integrated structure, wherein the fixing part is used for being fixed to the front side of the proximal femur, the supporting part extends upwards and inwards from the fixing part and extends inthe direction of the femoral head below the femoral neck, and the supporting part is used for bearing a proximal bone structure of a femoral neck fracture line. The bone fracture plate is placed in front of the proximal femur, so that a proximal femur neck fracture line bone structure is supported below the femur neck, downward movement of the proximal bone structure of the femoral neck fracture line above the bone fracture plate caused by the gravity of a patient is effectively avoided, and the effects of supporting and avoiding sliding displacement of the femur neck fracture are achieved; and therefore, the probability of internal fixation failure of the femoral neck fracture is reduced, and the curative effect of femoral neck fracture surgery is improved.

The invention discloses a femoral neck fracture fixing device. The femoral neck fracture fixing device comprises side steel plates, three sleeves, three head nails matched with the sleeves and at least one cortical bone locking screw. The inner surfaces of the side steel plates are matched with the anatomic form of the near-end outer side wall of the thigh bone. The head side of each side steel plate is provided with three conical threaded locking holes, and the tail side of locking the steel plates is provided with at least one cortical bone locking screw. The sleeves of hollow structures. The tail portions of the sleeves are matched with the conical threaded locking holes. The cortical bone locking screws are matched with cortical bone locking screw locking holes. The femoral neck fracture fixing device produces small wounds and is good in fixing effect, simple in operation and accurate in positioning.

The invention relates to the field of medical image processing, and discloses a femur neck fracture detection method and system based on weak supervision segmentation; the method comprises the steps:obtaining a detection image, inputting an obtained femur neck X-ray film into a constructed and trained detection neural network, and carrying out the detection of a femur part; obtaining a probability segmentation map P<probability and a femur neck region detection image P<detec>; acquiring the fracture type of the femur neck region, inputting the femur region detection image P<detec> into a constructed and trained classification network, and acquiring the type of the femur part fracture; acquiring a segmented fracture part, and inputting the femur region detection image P<detec> into a constructed and trained weak supervision segmentation network to obtain a segmented fracture part image P<seg>; and performing image fusion to obtain a femur neck region fracture image, and performing fusing on the segmented fracture part image P<seg> and the femur region detection image P<detec>to generate and output a femoral neck fracture region image. The femoral neck fracture is segmented througha weak supervision segmentation method, the detection precision is high, and the efficiency is high.

The invention relates to the technical field of medical surgical auxiliary equipment, and discloses a measuring instrument for artificial hip joint pressure. The measuring instrument includes an acetabular lining trial mold, the acetabular lining trial mold is composed of an acetabular lining shell, pressure sensors and a bluetooth signal transmitter, and the acetabular lining trial mold can be indata connection with computer equipment. The measuring instrument for the artificial hip joint pressure can improve the installation accuracy of artificial total hip replacement surgery and obtain amore ideal stress distribution, thereby improving the therapeutic effect of the artificial total hip replacement surgery; and the measuring instrument can be used for treatment of femoral neck fracture, femoral head necrosis, hip osteoarthritis, hip ankylosis, hip rheumatoid arthritis, acetabular dysplasia, hip primary / metastatic bone tumors, and other severe hip bone lesions with joint destruction.

The invention discloses a reduction support structure for femoral neck fractures. The reduction support structure comprises a locking steel plate, a sleeve and first screws; the inner surface of the locking steel plate is curved to be matched with the femoral large trochanter; the locking steel plate comprises a steel plate head, a steel plate trunk and a steel plate tail; three first screw holesarranged in an isosceles triangle shape are formed in the locking steel plate, and the bottom edge of the isosceles triangle extends in the side edge direction of the locking steel plate; the sleeve is arranged in the first screw holes; the tails of the first screws are arranged in the sleeve. The reduction support structure can achieve stable reduction support for the femoral neck fractures; theoperation is simple, the reduction effect is good, and the injuries to patient are small.

The invention relates to the field of medical image processing, and discloses a method and system for detecting femoral neck fractures based on weakly supervised segmentation. , get the probability segmentation map P probability and femoral neck region detection image P detec ; Obtain the fracture type of the femoral neck region, and detect the image P of the femoral region detec Input to the constructed and trained classification network to obtain the type of femoral fracture; detec Input the constructed and trained weakly supervised segmentation network to obtain the segmented fracture image P seg ; Image fusion to obtain the image of the femoral neck fracture area, and the segmented fracture image P seg Detection image P with the femoral region detec Fusion is performed to generate an image of the femoral neck fracture area and output. The femoral neck fracture is segmented by weakly supervised segmentation method, which has high detection accuracy and high efficiency.

The present invention discloses a method and system for evaluating closed reduction of femoral neck fractures based on a three-dimensional C-arm machine. Multi-dimensional imaging of the femur and the femur of the healthy side; S2: Calculate the length α of the A-line and the angle β between the projection of the B-line on the a-section plane and the B-line on the multi-dimensional imaging model; S3: The normal side obtained according to step S2 The α value α‑0 / β value β‑0, and the α value α‑1 and β value β‑1 of the fracture side were used to evaluate the effect of surgical closed reduction. The present invention uses a data-based method to make judgments, and solves the problem of inaccurate results of artificial subjective judgments in the prior art.

The modified method of Biplane Double-supported Screw Fixation (Modified BDSF) (Calcar buttressed screw fixation) of femoral neck fractures is disclosed. BDSF is applied using three standard bone screws laid in two vertical oblique planes in the femoral neck: the inferior (distal) screw is placed at an obtuse angle in the posterior oblique plane, and touched on the inferior (distal) and on the posterior cortices of the femoral neck; the middle screw and the proximal screw are laid in the anterior oblique plane and in parallel to each-other, with the middle screw touched on the distal femoral neck cortex. With BDSF of the three screws, two are weight-bearing and act as console beams: the distal screw and the middle screw, each of them having two supporting points in the distal fragment: medial (on the distal femoral neck cortex), and lateral (in the place of screw entry into the lateral femoral cortex).

The invention relates to the technical field of femoral neck fracture recovery, and discloses a body position reminder device for femoral neck fracture patients, comprising: a fixing plate, a fixing frame is fixedly installed on the upper end of the fixing plate, and a limit block is fixedly installed on the upper surface of the middle part of the fixing frame; A limit plate is fixedly installed on the upper end of the limit block, a buzzer is fixedly installed on the upper surface of the fixed plate, a fixed block is fixedly installed on the upper surface of the buzzer, and support strips are fixedly installed on both sides of the upper end of the fixed block . Through the use of the buzzer, the fixed block, the support plate, the fixed rod, the clip and the clip frame, it can effectively remind the patient when the distance between the legs of the patient is not a normal and reasonable distance due to the flipping of the body position. The patient is restored to a lying state, which ensures the effective and rapid recovery of the femoral neck, and avoids the state where the two legs are not separated by a reasonable distance, which may easily lead to the dislocation of the hip prosthesis, making the healing more difficult and inconvenient for the patient's recovery.

The invention provides a reverse V-shaped hollow screw assembly for fixing femoral neck fracture. The reverse V-shaped hollow screw assembly for fixing femoral neck fracture is characterized by comprising a first parallel screw, a second parallel screw and an oblique screw which form a reverse V-shaped assembly at the proximal end of the femur; the first parallel screw and the second parallel screw are parallel to each other and are parallel to the bone cortex above the femoral neck, so that the upper tension resistance effect is achieved; the oblique screw is located under the first parallel screw and the second parallel screw and is arranged in the direction of the connecting line of the femoral head load bearing area and the femoral distance; and the lower anti-pressure effect is achieved. Through a reverse V-shaped method, the two screws parallel to the bone cortex above the femoral neck above the femoral neck achieve the anti-tension effect, and the long oblique screw at the lower side achieves the anti-pressure effect. According to the method, the tension-pressure load condition of a real human body is effectively simulated by placing the screws, the dynamic balance of tension and pressure is achieved, and healing of femoral neck fracture is facilitated.