242 results about "Femur bone" patented technology

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

Computer implemented methods, systems, and computer products employing program code or algorithms for use in customized patient specific hip implants or femoral stems or sleeves having an outer surface that corresponds more closely to the inner surface of the cortical bone of a patient's femur compared to conventional hip implant or femoral stems or sleeves based on population-based design.

An apparatus and method for inserting a femoral broach or femoral stem or acetabular cup into a bone. The apparatus includes at least one closed loop insertion mechanism to provide impacts on the associated handles of the broach, stem, or the acetabular cup; at least one sensor to sense a series of impacts, including impact angle, and to provide real-time feedback of the alignment and / or condition of the bone; and a processor operably connected to the at least one sensor. The processor includes an algorithm that receives the real-time feedback to control the force, frequency, and alignment of the impacts by the at least one closed loop insertion mechanism.

Bone and joint surface reconstruction methods are disclosed for the therapeutic amelioration of joint defects caused by various conditions, injuries, and diseases to help eliminate or reduce pain and return the joint to its proper bio-mechanical function without the need to replace fully or partially the anatomical joint. The joint may specifically include mammalian joints such as the femorotibial joint, for example. The methods disclosed herein leverage the significant role the subchondral bone plays in the health status of the afflicted joint.

The present application relates to femoral stem prosthesis, specifically provides a femoral stem prosthesis with twisted trabecular structure, aims to solve the problem that although the existing femoral stem prosthesis has trabecular porous structure to promote bone growth, but still due to the high material elastic modulus and stress concentration inside the pore, leading to stress shielding effect and trabecular fracture, so it is difficult to effectively prevent long-term loosening of the prosthesis. For this purpose, a femoral stem prosthesis with twisted trabecular structure of the present application comprises a trabecular structure unit arranged on the surface layer of the prosthesis, the shape of the trabecular structure unit is a space net structure, the space net structure is provided with pores, the pores can accommodate new bone, and the space net structure is twisted from the inside of the prosthesis to the surface layer of the prosthesis. The present application introduces the mechanical regulation effect brought by structure twisting by arranging the space net trabecular structure which is twisted continuously from inside to outside on the surface layer of the prosthesis, on the basis of ensuring that the pores can be used for new bone growth and realizing bone-prosthesis biological fixation.

A device for forcefully inserting a surgical implant in a recipient bone by impaction, comprising an impactor (10) that exerts an impaction force on the implant and is associated with at least one sensor (12). The sensor (12) measures a value from among the exerted impaction force and the deformation of the impactor (10) and provides a measurement signal representing the temporal variation of said value during an impact. The sensor (12) is connected to a processing unit (30) that is configured to compute, on the basis of the temporal variation of said value during the impact, an indicator representing the level of contact between the implant and the recipient bone. The indicator corresponds to the duration separating the instant corresponding to the first maximum amplitude peak of the measurement signal from the instant corresponding to the second maximum amplitude peak of the measurement signal. The implant can be a femoral rod (2).

An ultrasonically vibrating surgical tool for removing cement (7) in artificial joint revision surgery has an ultrasonic vibration source operationally coupled to a working tip (5) that acts on the cement (7) in the lumen (8) of a bone such as a femur (1). When acting on the cement (7), the tool vibrates at substantially a single resonant frequency. If the working tip (5) comes into contact with a hard material such as the bone wall (6) of the femur (1), additional supplemental vibrations are generated at other frequencies. The tool is equipped with a microphone or other vibration detector to pick up these supplemental vibrations, which may be in the audible or ultrasonic range. If supplemental vibrations are detected at a frequency characteristic of contact between the working tip (5) and bone, the user of the tool is warned and the operation of the tool is interrupted.

The invention relates to the technical field of surgical measurement, in particular to a real-time measurement method and system for the length and eccentric distance of lower limbs in hip replacement. According to the technical scheme, the method comprises the following steps that anatomical feature points on the two sides of a patient are obtained, wherein the anatomical feature points at least comprise the positions of anterior superior iliac spines on the two sides and the positions of high points on the inner side and the outer side of ankle joints on the two sides; and according to the obtained anatomical feature points, calculating and establishing a normal position reference plane of the patient. By means of the non-invasive body surface positioning and optical tracking technology, the length and the eccentric distance of the lower limb can be accurately measured in real time in the hip replacement. The method comprehensively considers the change of both sides of the acetabulum and the femur, avoids the trauma risk of traditional invasive navigation and the deviation of single measurement, and provides a quantitative basis for doctors through intraoperative dynamic data feedback and preoperative, intraoperative and postoperative whole-course evaluation, thereby improving the surgical precision and reducing the occurrence rate of complications with unequal lengths of lower limbs.

There is provided a method to perform bone resection using a planer. Under guidance of a surgical navigation system, and, optionally, under command of a robotic system, a trackable surgical instrument is guided to a target pose on a target bone. The bone may be a femur or tibia in a TKA. The trackable instrument comprises a drill or a pin guide for mounting a pair of pins, preferably graduated pins to select a resection depth. A pin end is inserted into the planer and the planer operated to resect until the pin end bottoms out. A robot may command movement of the trackable instrument to the target pose. The target pose may be received or determined from surgical pre-planning or intra-operative activities such as tracked measurements, user input, etc. The navigation system presents information such as measurements and / or image overlays to guide the placement.

An apparatus to facilitate torso exercises includes a base frame, and a leg support member coupled to the base frame to rotate about a first vertical axis, supporting a user's legs during the torso exercises. A rotation mechanism is configured to allow rotation of the leg support member along the first vertical axis relative to the base frame. The leg support member includes a pair of cavities configured to accommodate tibias during the torso exercises, to enable the user to apply torque and rotation through the femurs. Further, the design of the chest support member facilitates adjustability of the chest support member in forward- backward direction, and upward-downward direction to account for different body shape and size of the user. The apparatus facilitates the user to perform exercises in a quad-pad position, by moving the chest support member out of a region occupied by the user.

A method is provided for performing a quadruped unicompartmental stifle arthroplasty. The method includes cutting a plateau of a tibia to form first cut surfaces. The method also includes cutting a medial condyle of a femur to form second cut surfaces. The method also includes aligning openings in a first trial device with the first cut surfaces and forming first holes in the first cut surfaces by passing a drill through the openings in the first trial device. The method also includes aligning openings in a second trial device with the second cut surfaces and forming second holes in the second cut surfaces by passing a drill through the openings in the second trial device. The method also includes mounting a first implant device to the first cut surfaces and mounting a second implant device to the second cut surfaces. A system is also provided for performing the method.

Femur lift (1) of an operating table (2) comprising a control device (5) for a support arm (3) mounted therein in a longitudinally adjustable position in a transverse recess (27) of an angularly pivotable control disk (6), with an end-side femur support (4) and a pivot-releasable return locking mechanism (7) made of a spring-loaded control wedge (8) which engages in a wedge gap between a functional surface (17) of the control device (5) and a convex end-face control surface (16) of the control disk (6), characterized in that the control device (5) is equipped with an adjusting device (25) which has a control slide (20) extending in front of a narrow side of the control wedge (8) and the control wedge (8) is held in a zero position out of engagement with the control surface (16),which, in an operating position with the control slide (20) moved out of contact, is engaged with the control surface (16) and allows an angular adjustment of a support arm (3) in one direction of rotation from bottom to top and locks in the opposite direction of rotation from top to bottom.

The device comprises a nail rod, a nail cap and an O-shaped pull strap, a sliding groove is formed in the middle of the nail rod in a penetrating mode, a sliding rod is connected to the inner wall of the sliding groove in a sliding mode, a plurality of mounting grooves are symmetrically formed in the outer wall of the nail rod at equal intervals in a penetrating mode, and the O-shaped pull strap is arranged in the mounting grooves. The mounting grooves extend into the sliding groove and are rotationally connected with auxiliary nails, connecting grooves are formed in the positions, opposite to the auxiliary nails, of the outer wall of the nail rod in a penetrating mode, push blocks are fixedly connected to the outer walls of one sides of the auxiliary nails and extend into the connecting grooves, and one end of the sliding rod extends out of the sliding groove and is fixedly connected with a nail cap. The outer wall of the limiting block is sleeved with an O-shaped pull strap, so that the auxiliary nail abuts against the bone wall of a patient, the friction performance of the sliding rod is improved, the nail cap is limited through the limiting block, the limiting block is sleeved with the O-shaped pull strap, the nail rod is limited through the O-shaped pull strap, and secondary reinforcement is conducted on fractured bone fragments of the patient.

The invention discloses a femoral neck fracture treatment positioning plate, preparation equipment and a preparation method, the positioning plate comprises a main body plate and an adjustable guide module, the shape of the main body plate is matched with the anatomical form of the outer side bone surface of the proximal femur, and the main body plate is provided with at least one bone nail hole. The individualized main body plate accurately matched with the anatomical form of a patient is introduced, and the adjustable guide modules of various innovative designs are combined, so that the problem that a traditional positioning plate is poor in universality is effectively solved, and anatomical differences and operation requirements of different patients can be perfectly met; a spherical hinge, an offset sliding block-arc-shaped guide rail, an elastic deformation ring, a modularized guide sleeve and other structures are adopted by the guide module, the space angle stepless adjusting function is ensured, meanwhile, the mechanical structure is remarkably simplified, redundant parts are eliminated, high-rigidity and gapless locking is achieved, micro-motion and displacement in an operation are thoroughly avoided, and the operation efficiency is improved. And the accuracy and the reliability of screw placement are greatly improved.

The disclosure provides a femur bilateral boundary line determination method, a system and an X-ray camera. The femur bilateral boundary line determination method comprises the following steps: extracting a femur mask boundary image corresponding to a femur mask in a femur region mask image; and determining one or two boundary lines of a first boundary line and a second boundary line in a femur bilateral boundary line or a femur cortical bilateral boundary line based on non-zero coordinates of the femur mask boundary image. The embodiment of the disclosure can determine the femur bilateral boundary line and / or the femur central axis.

The present disclosure relates to a femur and patella contact surface, length determination, image processing method, system and X-ray machine, and relates to the technical field of knee X-ray processing. The femur and patella contact surface determination method comprises: acquiring a femur region mask image and a patella region mask image corresponding to a to-be-processed knee X-ray image; determining an overlapping region corresponding to a femur region mask in the femur region mask image and a patella region mask in the patella region mask image; and configuring the overlapping region as a femur and patella contact surface in the to-be-processed knee X-ray image. The embodiment of the present disclosure can realize knee X-ray image processing.

An implant removal tool used to remove a femoral implant from a femur bone by providing a substantially U-shaped body having a substantially rectangular-shaped opening located thereon that allows the substantially U-shaped body to be placed over a neck of a femoral implant so a sharpened front edge of the substantially U-shaped body makes direct contact with an inner surface of the stem of the femoral implant. The U-shaped body may have front side edges that extend beyond a front edge to allow the front side edges to cut anterior and posterior surface of the implant.

The utility model relates to medical nursing field relates to a portable hip joint postoperative abduction lifting device, the utility model discloses: U type inflation slope pad and T type inflation body position pad, the U type inflation slope pad includes first air bag pad and second air bag pad, the first air bag pad top is equipped with the mouth that places, the second air bag pad sets up in the inside of first air bag pad high middle part gap, T type inflation body position pad sets up in U type inflation slope pad one side, T type inflation body position pad both sides are equipped with U -shaped groove, and U type inflation slope pad and T type inflation body position pad combine, satisfy the need after femur fracture operation, and clinical practicality is strong, can good help patient, prevent the dislocation caused by improper body position, improve patient's comfort, promote the disease recovery, and the inflation type structure is convenient to carry, and the double air bag setting in U type inflation slope pad satisfies the demand of different patients to the affected limb elevation.

Disclosed is a tool set and an associated method for removing a prosthetic implant. Although the tools in the tool set can be used to remove a variety of different prosthetic implants, it finds particular application in the removal of femoral implants. In one embodiment, both lateral and medial tools are utilized. The lateral tool includes a generally arcuate shape with upstanding sidewalls that define an arcuate interior. The lateral tool is thus dimensioned to follow the contour of the lateral side of a femoral implant. The medial tool includes opposing side walls that define an interior opening. The opening is sized to receive the neck of the femoral implant, thereby allowing the tool to closely follow the medial bone / implant interface. In another embodiment, a J-shaped tool and an L-shaped tool are utilized to cut below an undercut of an femoral implant. The tools in the tool set can work together or individually.

The application provides a surgical robot system and control method for proximal femur osteotomy, the system comprises: a preoperative planning module for constructing a hip joint three-dimensional model and performing preoperative planning according to the hip joint three-dimensional model to generate a proximal femur osteotomy scheme, which is one of a femoral head rotation osteotomy scheme, a femoral neck rotation osteotomy scheme, an intertrochanteric rotation osteotomy scheme and a subtrochanteric rotation osteotomy scheme; a navigation positioning module for registering the entity femur in operation and the hip joint three-dimensional model before operation according to an optical positioner and an optical positioning frame to map the proximal femur osteotomy scheme, real-time tracking the pose of the surgical tool and the entity femur, and displaying and comparing the proximal femur osteotomy scheme and the real-time osteotomy process on a display screen. In the application, the preoperative planning-intraoperative optical positioning navigation can track the osteotomy condition of the surgical tool in real time during operation, and multiple medical imaging is avoided, thereby greatly improving the surgical effect.

The present invention relates to a mechanical implant for hip and shoulder arthroplasty. The mechanical implant comprises a neck (1) and an end (2), the end (2) which enters into a cavity in the patient's bone and terminates with a movable mechanical part (3) which fits into the metaphysis of the femur or humerus, and the end (2) terminates with two movable parts (4) to fit the end (2) into the neck (1). The two parts of the neck (1) and the movable mechanical part (3) are joined by a screw (5). The present invention enhances stability and facilitates the replacement of the neck (1) in the event of revision.

A distal femoral jig includes an alignment guide and an outrigger component. A segmented intramedullary rod instrument may be used to install the alignment guide on a patient's femur. The alignment guide is configured to contact the distal femoral condyles of the patient's femur so as to align a distal cutting block coupled to the outrigger component. The distal femoral jig may be operated in either a mechanical alignment mode of operation or a kinematic alignment mode of operation. Methods of surgically preparing a patient's femur are also disclosed.

The invention discloses an optimization method, device and equipment of a biodegradable bone fracture plate and a storage medium, and is applied to the technical field of medical instruments, and the method comprises the following steps: constructing a finite element model of femoral shaft fracture; in the finite element model, applying a dynamic biomechanical load simulating a human body walking cycle; the stress level of the bone fracture plate and the displacement level of the fixed thighbone are used as optimization targets, and multi-dimensional parameters of the bone fracture plate are optimized; delimiting a safety area of the bone fracture plate according to the optimized bone fracture plate design parameters; according to the method, the technical steps of base material type selection and process optimization, finite element model construction and dynamic load application, multi-dimensional parameter optimization, safety area demarcation and personalized adaptation and the like are organically combined; the technical problems of secondary operation, stress shielding, high biological safety risk, poor adaptability, high engineering difficulty and the like of a traditional bone fracture plate are effectively solved.

The femoral multi-dimensional interlocking intramedullary nail structure comprises an aiming support, the top of the aiming support is connected to one end of a connecting handle, the other end of the connecting handle is connected to an intramedullary nail, and the two sides of the top of the aiming support are connected to one end of a left support and one end of a right support respectively; a left sleeve is inserted into the other end of the left support, a right sleeve is inserted into the other end of the right support, a left cross nail is connected to the end of the left sleeve, a right cross nail is connected to the end of the right sleeve, an aiming tube is inserted into the bottom of the aiming support, and a blade nail is connected to the end of the aiming tube. According to the internal fixation device, proximal femur fracture accompanied by split fracture of the outer side wall of greater trochanter of femur and small fracture blocks around the greater trochanter are held, so that firmer internal fixation is achieved, and internal fixation failures such as nail withdrawing and nail breaking caused by poor holding can be effectively prevented.

To provide image processing programs and the like that can generate image data and images that enable more adequate evaluation and diagnosis than conventional methods. [Solution] The present invention's image processing program is characterized by causing a computer to execute the following: an image acquisition process in step S305, which acquires a plurality of image data obtained by performing CT scanning of the hip joint of a subject; an image generation process in step S310, which generates display image data for displaying a predetermined image on a display device based on the plurality of image data acquired in the image acquisition process in step S305; and a first region identification process in step S320, which identifies a first region that is a necrotic area of ​​the femur surrounded by a plurality of image data corresponding to the femur, where the CT value is greater than that of a normal bone, based on the display image data of the femur in the hip joint generated in the image generation process in step S310.

The application belongs to the technical field of biology and specifically relates to a casein phosphopeptide for promoting calcium, iron and zinc mineral absorption and improving bone health. The application obtains the casein phosphopeptide containing high-activity peptide segments by optimizing the process, and takes six mineral elements of calcium, magnesium, copper, iron, zinc and manganese as research objects. Firstly, the mineral deficiency rat model is used to evaluate the mineral utilization of the CPP. The consumption of 7mg / kg.d increases the contents of Ca, Mg, Cu, Fe, Zn and Mn in femur by 7.12%, 3.56%, 20.76%, 15.84%, 9.94% and 67.12% respectively. Secondly, the molecular docking technology is used to screen the peptide segments with calcium absorption activity from the CPP and perform function verification. The application aims to reveal the effect of the CPP in the mineral absorption and utilization from the cell and animal levels, and provide a theoretical basis for the functional development.