34 results about "Limb length" patented technology

A multiaxial combined and matched type anti-infection semi-pelvic false body comprises an acetabulum and net cup plate wing which is arranged on the top of the acetabulum and can be fixed on a reserved hip bone wing. Two to three universal joints are arranged on the back of the net cup plate wing. The universal joints are opened with a card slot which can be connected with a universal bar. The invention can arbitrarily adjust the height and the point of view of the acetabulum through the combination of the universal joints and the acetabulum to realize the truly anatomical location reconstruction of the hip joint which is not affected by the resection range. The reconstruction of the connection of the pelvic ring and the acetabulum takes the way of universal multi-axis in order to conveniently adjust the location of the acetabulum, thereby assuring the coherence of the limb length after being reconstructed. The location of the acetabulum can be adjusted according to the removal situation of the soft tissue in the operation. Through the sacrum and the contact point of the universal screw of the ischiopubic multi-axis point driven into the pelvic ring, especially multi-nail fixation driven into the lumbar, the hardening stress can be scattered, the hardening stress concentration can be reduced to reduce the complicating disease such as looseness and broken nails.

The invention discloses an action guidance method based on action capture. The method comprises the steps of acquiring a standard action image and a user action image; outputting digital signals of key points and two-dimensional coordinates of a human body in the standard action image and the user action image; identifying the limb length and the limb included angle of the human body, and markingdigital signals of each joint point of the human body and the two-dimensional coordinates of each joint point in the standard action image and the adjusted user action image; respectively enabling thedigital signals of the two-dimensional coordinates of each key point of the human body in the standard action image to correspond to the first human body skeleton model, and enabling the digital signals of the two-dimensional coordinates of each key point of the human body in the adjusted user action image to correspond to the second human body skeleton model; comparing the included angles between limbs in the actions of the first skeleton model and the second skeleton model to judge whether the actions of the user and the standard actions are within an error range or not; and if the deviation between the action of the user and the standard action exceeds a threshold value, reminding the user to adjust the action towards the direction of reducing errors.

The invention discloses a multi-functional portable retractor for the osteology department and belongs to the field of medical appliances. The multi-functional portable retractor for the osteology department disclosed by the invention comprises a main body, a telescopic arm and an embedded connecting assembly, wherein a main body fixation clamp is disposed on one end of the main body; the telescopic arm which can stretch out from the other end is disposed inside the main body; the telescopic arm is telescopic relative to the main body; and the end part of the telescopic arm is connected to a traction arm by the embedded connecting assembly. The retractor disclosed by the invention is mainly used to solve the technical problem in accurate control of human body limb traction during operations, treatments and recovery; by the multi-functional portable retractor for the osteology department disclosed by the invention, a doctor can explicitly determine a traction distance during use and ensure a precise limb length of a patient; and force saving, torsion increase and efficiency are taken into account, so that optimal effects in aspects such as the force saving, torsion increase and working efficiency increase can be achieved.

A training action identification method comprises the steps of: measuring motion parameters of motion, wherein the motion parameters comprise an accelerated speed, an angular speed and a rotation attitude angle; according to a preset constraints model, performing denoising processing for the motion parameters to obtain optimal motion parameters; and employing a classification algorithm to performclassification for the optimal motion parameters to identify the action. According to the limb length and the limb connection relation, the constraints model is established, and the constraints modelis employed to perform denoising for the actually measured motion parameters to obtain the optimal motion parameters so as to allow the motion identification robustness to be higher.

The invention discloses a man-machine supple connecting mechanism aiming at an exoskeleton robot. The connecting mechanism is characterized in that motion pairs are disposed at an exoskeleton shank and a foot part so as to constrain the foot part and the shank of a human body; a planar pair is disposed at the waist part of the exoskeleton so as to constrain the human body waist; and through two motion pairs and one planar pair, the exoskeleton could be connected to the human body, and mechanism constitution is simplified. Traditional belt binding connection is replaced; a joint alignment error and a limb length error between the human body and the robot exoskeleton can be adapted; main-machine constraint force is reduced effectively; and wearing comfort of the exoskeleton robot is enhanced.

The invention discloses a human body flexion angle identification method and a device based on a BP neural network, wherein, the method comprises the following steps of: establishing a BP neural network model; the foreground object of the sitting body flexion side image is extracted, and the sitting body flexion side image after the foreground object is extracted is obtained. Inputting the sittingbody flexion side image into the BP neural network model for body flexion angle identification; outputting the body flexion angle of the subject. The invention can overcome the measurement error caused by different limb lengths, makes the measurement result more accurate, and further improves the detection efficiency.

The invention relates to the technical field of medical instruments, in particular to a clinical limb rehabilitation device. The device comprises a base, wherein a seat is arranged at the upper end ofthe base, an L-shaped rod is arranged at the upper end of the seat, an exercise apparatus is connected with the lower end of the L-shaped rod, an output shaft of a first motor is connected with a long rod, and the upper end of a supporting rod is provided with an arc-shaped block; the upper end of the arc-shaped block is provided with a groove, the side wall of the arc-shaped block is provided with an arc-shaped notch communicated with the groove, a fixing plate is inserted to the upper end of the groove, and the lower end of the fixing plate is provided with a supporting shaft matched with the arc-shaped notch; the supporting shaft is matched with the long rod, the upper end of the fixing plate is provided with a hook-and-loop fastener, and the side wall of the fixing plate is provided with a spring connected with the seat. The device can not only carry out rehabilitation training on the upper limbs and lower limbs of a patient at the same time but also meet the use demands of patients different in limb length and have high practicability.

The invention belongs to the technical field of medical devices, in particular to an adjustable leg bone stretching device for medical surgery. Aiming at the problems of low patient comfort and inconvenient movement of the legs, the following proposals are proposed, including leg fixing frames and feet The leg fixing frame includes a base, and the top of the base is provided with a semi-cylindrical groove, and the two sides of the top of the base are respectively hinged with a clip and a clip, and the clip and the clip are connected to each other , both sides of the outer wall at one end of the base are provided with installation grooves along the length direction of the base, racks are installed in the two installation grooves, and slide grooves are provided on the bottom inner walls of the two installation grooves, the two racks and the two The inner wall of a chute is slidingly connected. The invention can adjust the stretching device according to the length and diameter of the patient's limbs, so that the device is suitable for different patients, can fix the legs and feet separately, facilitates the movement of the patient, improves the comfort of the device, and avoids secondary damage to the patient .

The invention provides a clover titanium plate fixing structure and method of a femoral intertrochanteric fracture. The structure comprises a clover titanium plate and a single leather screw. The clover titanium plate comprises an upper part and a lower part. When an femoral intertrochanteric fracture prothesis replacement operation is carried out, the clover titanium plate and the single leather screw are used for fixing the fracture at the upper end of the femur, according to the structural shape of the upper portion of the clover titanium plate, three blades are arranged in three directions respectively, and the blades are provided with a plurality of screw fixation holes. The bending-resistant, rotation-resistant and shearing-resistant functions of the fixing structure obviously exceed those of a steel wire kirschner wire, a reference point of the femoral head rotation center and the eccentric distance during prosthesis implantation is restored, postoperative limb length balance is guaranteed, tension of the gluteus medius is effectively restored, and normal functions of postoperative hip joints are guaranteed.

The invention discloses a rapid affected limb raising device for a patient suffering from gout. The rapid affected limb raising device comprises a seat plate, wherein the two sides of the lower end ofthe seat plate are fixedly connected with supporting plates, first sliding grooves are separately formed in the front and rear sides of the seat plate, a hanging frame is snapped into the middle partof the seat plate, lower ends of the front and rear sides of the hanging frame are fixedly connected with stretching mechanisms, a supporting mechanism is arranged at one side of the upper end of theseat plate, pin holes are separately formed in the front and rear sides of one end of the seat plate, two second sliding grooves are formed in the upper end of the seat plate, and a plurality of locating holes are formed in the seat plate between the two second sliding grooves. According to the rapid affected limb raising device, a lifting plate is arranged on the base, when in use, a bottom plate and a top plate can be driven to move by using the lifting plate and an air cylinder so as to lift a thigh limb of a sufferer; and the lifting plate is in sliding connection with the seat plate, when in use, the position of the lifting plate can be adjusted according to length of the thigh limb of the sufferer, so that the rapid affected limb raising device can be conveniently applicable to sufferers of different thigh limb lengths, other raising devices are not required to be replaced, and the manufacturing cost is relatively low.

The present invention discloses a rope-driven three-degree-of-freedom training robot. The rope-driven three-degree-of-freedom training robot comprises a robot body and an active and passive hybrid driving system, and the robot body comprises a forearm outer ring, a forearm inner ring and a hand circular ring. A rope is used to drive a wrist joint of a user for training, a joint misalignment phenomenon between the user and the robot can be avoided, besides, the robot can be adapted to different limb lengths, reduces load weight of the user, can effectively increase training comfort, and improves training efficiency, and the active and passive hybrid driving system can provide large-output and high-bandwidth force feedback in training processes to assist rehabilitation training of patients.

The cephalomedullary nailing system of this invention contributes to solving three main problems: reduce fractures, improve assembly biomechanics to ensure the load axis is favorable as possible for bony fragments and prevent femoral neck collapse as well as offset and limb length loss, hence avoiding the possibility of reduced abductor power. The system is based on specific screw channel geometry and the placement of an additional locking screw, allowing the nail to turn 360° and facilitating nail insertion through the screw.

The invention discloses a method device for recognizing the bending angle of a human body, and the method comprises the steps: previewing a to-be-captured image at an image capturing interface; setting a photographing range in a previewing process; carrying out the photographing of a detected person in the photographing range when the detected person bends forwards, and obtaining a body forward bending image of the detected person; carrying out the analysis of the body forward bending image, and obtaining the bending angle of the detected person. According to the invention, the method can avoid the measurement error caused by different limb lengths, enables a measurement result to be more precise, and improves the detection efficiency.

The invention discloses a measurer of the eccentric distance of a hip joint and the extended limb length. The scaled long straight section of an L-shaped limb length measuring rod (4) is fixedly connected with a scaled pointer (5) by a first cross connector (3); the short straight section of the L-shaped limb length measuring rod (4) is fixedly connected with one end of an eccentric distance measuring rod (2) by a second cross connector (6); the other end of the eccentric distance measuring rod (2) is fixedly connected with a positioning kirschner pin (1) by a universal connector (7); and the pinpoint of the scaled pointer (5) faces to one end where the positioning kirschner pin (1) is arranged. The measurer is accurate to measure, changes the limitation of the prior measurer aiming at measuring the limb length, simultaneously obtains two important measured data and fills in a gap that eccentric distance measurement can not be realized in a manual full hip joint replacement operation; and the measurer is convenient to dismount, does not influence the operation of an operation view and saves the operation time.

The present invention provides an apparatus for measurement of a limb circumference, comprising a pull string module, a first measurement module and a second measurement module. The pull string module comprises a surrounding component, wherein the surrounding component comprises an encircling part disposed around a limb of an individual; the first measurement module is disposed at the pull string module and moves alone the longitudinal axis of the limb and meanwhile measures the length of the limb; and the second measurement module measures the length of the encircling part simultaneously when the first measurement module move alone the limb, so as to determine the correlation between the limb length and the limb circumference. The present invention further provides a device including two or more apparatuses of the present invention to measure the limb compliance and to be used in the treatment of lymphedema.

An embodiment of the invention provides a limb length measuring method and a limb length measuring device. In the embodiment of the invention, the rotation angle of a limb is obtained, the movement displacement of the limb is obtained, the length of the limb can be automatically calculated through the rotation angle and the movement displacement, manual measurement and input are not needed, the construction efficiency of a human body virtual model is greatly improved, in addition, errors are reduced, and the human body virtual model can be closer to the actual body of a user.

The invention relates to the technical field of postoperative rehabilitation training devices, and especially relates to a postoperative local rehabilitation training device. The device comprises: a lifting seat; a lower limb local training mechanism; and a translation mechanism. The translation mechanism comprises a rectangular base; and a translation plate. The lifting seat includes: an automatic lifting tube; and a seat. The lower limb local training mechanism comprises: a base; a fixed box; a first rotating shaft; and a pair of pedal plates which are arranged at the two extending ends of the first rotating shaft in a crossed mode, wherein an arc-shaped buffering sleeve is arranged on the rear side of each pedal plate; and a control host capable of being adjusted in a lifting mode is arranged on the vertical face, close to the seat, of the fixed box, and the control host is electrically connected with the interior of the lifting seat, the interior of the lower limb local training mechanism and the interior of the translation mechanism. The device is simple to operate, can dorehabilitation motion in an easy environment, can perform automatic adjustment according to patients with different limb lengths, and improves the practicability and the rehabilitation training effect.

The present invention provides an apparatus for measurement of a limb circumference, comprising a pull string module, a first measurement module and a second measurement module. The pull string modulesurrounds the limb, the first measurement module is arranged on the pull string module, and the second measurement module is connected to the pull string module. The first measurement module moves alone the longitudinal axis of the limb and meanwhile measures the length of the limb. The first measurement module measures the length of the encircling part simultaneously when the second measurementmodule move alone the limb, so as to determine the correlation between the limb length and the limb circumference. Two groups or more of the pull string modules of the apparatus can be used in parallel. When two groups of the pull string modules are used in parallel, changes of limb hardness, namely compliance, can be monitored. A plurality of groups of the pull string modules used in parallel canbe used for treatment of lymphedema.

The invention discloses a steel wire mesh bent reinforced Z-shaped section concrete column and a making method, and belongs to the technical field of shock absorption and disaster prevention. The section of the column is Z-shaped, and the column is positioned at the Z-shaped corner of a longitudinal and transverse wall; the ratio of the limb length to the limb thickness of the Z-shaped column is 2-4; and the column consists of concrete 1, steel wire meshes 2, concave key grooves 3 and a Z-shaped steel wire mesh skeleton 4. The making method comprises the following steps of: bending the steel wire meshes 2 into the Z-shaped steel wire mesh skeleton 4 according to the design size, supporting a template, pre-burying connecting steel bars 3 or reserving end grooves 4, pouring the concrete 1, and thus forming the steel wire mesh bent reinforced Z-shaped section concrete column. The transverse steel wire intervals of the steel wire mesh skeleton are dense, so the shearing resistance is good, and brittle shear fracture of a special-shaped short column can be prevented; the end grooves are reserved at the ends of the section of the column or the connecting steel bars are connected with a lightweight ecological wallboard, so that the aims of enhancing the integrity of a house and promoting the integral anti-seismic and energy dissipation capabilities are fulfilled; and the column is suitable for rural houses, and has a broad application prospect.