39 results about "Bony pelvis" patented technology

The invention includes systems and methods for relating to improved body structures for robots. A robot assembly includes a base member (e.g., a pelvis base). The robot assembly includes a first hip member rotatably connected to the pelvis base. The first hip member is connected to a first electric actuator configured to rotate the first hip member about a first hip axis relative to the pelvis base. A first intermediate member is rotatably connected to the first hip member. The first intermediate member is connected to a second electric actuator configured to rotate the first intermediate member about a second hip axis relative to the first hip member. A first leg member is rotatably connected to the first intermediate member. The first leg member is connected to a third electric actuator configured to rotate the first leg member about a third hip axis relative to the first intermediate member.

Aspects in accordance with the present invention pertain to a prosthesis system comprising a plurality of modules, each of said modules being adapted for separate and appositional fixation thereof to a defective pelvis bone, such that when all the modules have been fixed to the pelvis bone, the modules communicate by a mating interface, thereby forming an acetabular prosthesis that is adapted to reconstruct an acetabulum and / or to augment the pelvis bone.

The present invention discloses a rigid-flexible pneumatic component hybrid-driven robot joint system, belonging to the technical field of robots. The robot has the function of whole-body joint movement: three cylinders are connected in parallel to drive the movement of the waist joint. Multiple cylinders of the waist joint and the pneumatic muscles of the pelvis together drive the movement of the hip joint; the pneumatic motor and the pneumatic muscles in the form of antagonist muscles together drive the movement of the knee joint; four pneumatic muscles are connected in parallel to drive the movement of the ankle joint, and another two pneumatic muscles are connected to the lower end of the foot through the rear connecting shaft guide and drive the ankle joint together with the four pneumatic muscles of the ankle joint. A group of antagonist muscles in the wrist joint-elbow joint and the shoulder joint-elbow joint respectively drive the rotation of the elbow joint, and the pneumatic muscles in the form of two groups of antagonist muscles in the wrist joint-elbow joint and the wrist joint drive the movement of the wrist joint, and the pneumatic gripper has the function of clamping items. The present invention drives the joints by combining pneumatic components with mechanism, and has the characteristics of compact structure, strong adaptability and flexible working mode.

A method for facilitating stabilization of a sacroiliac joint is provided. The method includes surgical and stabilization techniques for implanting bone anchors or fasteners such as a first bone screw, a second bone screw, and third bone screw in a pelvis traversing portions of a coxal bone and a sacrum, and extending through or adjacent at least a portion of a corresponding sacroiliac joint. The bone anchors or fasteners such as the first bone screw, the second bone screw, and the third bone screw can be inserted at different angles and locations to form a lattice structure that serves in securing the position of a coxal bone and a sacrum relative to one another to facilitate stabilization across a corresponding sacroiliac joint.

The invention relates to the technical field of medical data processing, and discloses a hip joint bone cartilage forming operation planning method, system and equipment based on a reverse motion envelope surface and a medium, and aims to accurately identify a bone impact area through all-attitude three-dimensional collision detection and remarkably reduce missed diagnosis and excessive resection risks; the device adapts to multiple pelvis postures, and limitation of a single posture is avoided; an inverse motion enveloping strategy is adopted, so that the operation efficiency and precision are improved, and the submillimeter resolution is realized; a multi-attitude and time dimension collision detection process is simplified, a potential conflict area is quickly obtained through union set operation, and digital operation planning is greatly facilitated. In addition, a doctor can be assisted in obtaining a three-dimensional visual'to-be-cut-off area 'before an operation, and the operation time is shortened; human experience errors are reduced, and the postoperative joint motion range is improved; the hip joint protection surgery is promoted to be converted from a two-dimensional scheme to a'three-dimensional + time 'multi-dimensional refined planning, and the method has important significance in reducing surgical wounds and improving postoperative functional recovery.

An acetabular cub system is configured to be secured to a pelvis and may include an acetabular cup and a plurality of bone fasteners. The acetabular cup may include a bone engaging surface and an articulating surface, as well as a plurality of lobed fastener apertures extending from a first opening at the articulating surface to a second opening at the bone engaging surface. The plurality of bone fasteners may be insertable through the lobed fastener apertures to secure the acetabular cup to the pelvis. Each of the plurality of lobed fastener apertures may include a central aperture configured to receive a first bone fastener of the plurality of bone fasteners and one or more aperture lobes intersecting with the central aperture configured to receive a second bone fastener of the plurality of bone fasteners. The central aperture may be larger than the one or more aperture lobes.

An acetabular bone defect filling block design method based on a force conduction path comprises the steps that a mechanical conduction target path is determined, specifically, the stress condition of a hip joint in a gait cycle is simulated on the basis of a three-dimensional model of a pelvis of a patient, a bone defect area Vdefect and a three-dimensional model of an implanted supporting bracket which are obtained in advance, and the mechanical conduction target path is determined; determining an expected force flow conduction path from the acetabular cup loading area to the host bone main bearing area; a filling space determining step: calculating a residual defect space Vremain formed after the support is implanted; a filling block main body generation step: taking the residual defect space Vremain as a design boundary, taking following of the expected force flow conduction path and realization of matching of the structural rigidity and the host bone as an optimization target, generating a filling block main body three-dimensional model with an internal support truss through a topological optimization algorithm, and steering a strong gluteus column by depending on an incomplete acetabular ring, and a fixed foundation which cannot be shaken is provided. An intelligent structure with the optimal mechanical property is generated by converting empirical shape matching into simulation driving generation type design.

The invention provides an orthopaedic implantation post-operation X-ray film simulation method and system based on a preoperative CT image, a medium, a program product and a terminal, and aims to accurately convert and present results of three-dimensional segmentation, key point identification and prosthesis positioning based on preoperative CT into a standard post-operation X-ray film simulation effect conforming to clinical routine. A doctor can intuitively and clearly foresee the form projection and the specific spatial position of selected prostheses including an acetabular cup, a lining, a ball head, a femoral stem and the like on a post-operation standard orthotopic X-ray film and the accurate relative anatomical relation between the prostheses and key bony markers of the pelvis and the femur in the pre-operation planning stage. By providing an intuitive and quantitative post-operation X-ray film simulation effect, a doctor is effectively assisted in selecting an optimal operation scheme and adjusting setting of parameters such as the size, the position and the angle of an implant, the predictability and the accuracy of operation planning are improved, and dependence on pure experience is reduced.

Methods include tracking one or more of a leg length or an offset in a patient during a total hip arthroplasty (THA) procedure performed using a navigated surgical system, with an expandable trial femoral assembly. Certain methods include registering a pelvis of the patient to the navigated surgical system; and in various embodiments measuring a leg length or registering a femur to the navigated surgical system. An expandable trial femoral assembly is affixed to a prepared and broached femur of the patient; and the expandable trial femoral assembly is reduced into an acetabular prosthesis. A navigated driver may then be used to adjust an expansion extent of the expandable trial femoral assembly. The navigated surgical system may measure the leg length and the offset in the patient based on the movement of a reference element of the femur relative to a reference element of the pelvis.

To provide a pelvis belt of improved support properties.SOLUTION: A pelvis belt 100 includes a connection belt 1 and a pulley system 4. The connection belt includes a left connection belt 102 and a right connection belt 101 and is composed of an inside facing the waist part and an outside on the back side of the waist part when they are wound around the waist part and fixed. The pulley system 4 is composed of a first pulley group 32 and a second pulley group 31. Both pulley groups 31, 32 are moved by strings 5 wound around the first pulley group 32 and the second pulley group 31, a distance between the left connection belt 102 and the right connection belt 101 is adjusted.SELECTED DRAWING: Figure 2

The invention discloses a method and a device for calculating an acetabular cup bone fitting rate, computer equipment and a storage medium. The method for calculating the acetabular cup bone fitting rate comprises the following steps: acquiring a pelvis model and an acetabular cup model; extracting an effective bone binding surface of the acetabular cup model; performing Boolean operation on the effective bone binding surface and the pelvis model to obtain an intersection set and a difference set of the effective bone binding surface relative to the pelvis model; and based on the intersection and the difference set, calculating to obtain the bone fitting rate of the effective bone fitting surface relative to the pelvis model. According to the method for calculating the joint rate of the acetabular cup bone, an objective, accurate and efficient method is provided for evaluation of the joint rate of the acetabular cup bone through geometric model reconstruction, effective bone joint surface extraction, Boolean operation and quantitative calculation, quantitative calculation of the joint rate of the acetabular cup bone is achieved, and the joint rate of the acetabular cup bone is evaluated. The problems that in a traditional method, doctor experience is relied on, and subjective judgment accuracy is insufficient are solved, and scientificity and accuracy of operation planning are remarkably improved.

The application relates to a hip joint prosthesis, which comprises an interposition acetabulum prosthesis and a femoral head reconstruction device. The interposition acetabulum prosthesis is connected with the acetabular fossa of the pelvis stably through an interposition acetabulum cup, a fixing screw and an interposition acetabulum liner, and the adaptability and stability are enhanced through multiple designs such as petal opening and damping parts; the femoral head reconstruction device comprises a joint friction surface prosthesis and a bone ingrowth support cage, and the reconstruction and stable support of the femoral head are realized. The application achieves the technical effects of improving the stability and durability of the hip joint prosthesis, reducing the postoperative discomfort of patients and promoting the growth of bone tissue.

The application belongs to the field of simulation, and provides a filling modified screw mechanical analysis method based on a finite element analysis model, which comprises the following steps: obtaining three-dimensional medical image data of a target bone tissue region, and constructing a finite element analysis model of a micro bone trabecula structure and a macro pelvis structure based on the three-dimensional medical image data; introducing a filling modified screw structure into the finite element analysis model; constructing a response control factor field for representing the local adaptation capability of each position in the filling structure, and automatically updating the distribution of the factor field according to the stress state change; iteratively optimizing the distribution of the factor field based on a global error minimization principle, so that the overall stress distribution of the filling modified screw in the bone tissue tends to a target state; and outputting the stress response distribution, strain distribution and mechanical adaptation region of the filling modified screw in the bone tissue, which are used for evaluating the fixing performance of the filling modified screw under the condition of osteoporosis.

The invention provides an acetabular cup structure which comprises an outer cup provided with a mounting cavity and connected with a pelvis; the inner cup is movably arranged in the mounting cavity, and the inner cup is provided with a containing cavity for containing the femoral head; the connecting assembly comprises a first positioning piece and a second positioning piece, the first positioning piece is arranged on the inner side of the outer cup, the second positioning piece is arranged on the outer side of the inner cup, and when the first positioning piece is in positioning fit with the second positioning piece, the position of the inner cup is kept unchanged relative to the outer cup. According to the technical scheme, the problem that an acetabular cup is difficult to install in the prior art can be effectively solved.

A pelvis fracture reduction device, comprising a proximal end reduction mechanism, a distal end reduction mechanism and a connecting rod; the proximal end reduction mechanism comprises a first frame, a first positioning assembly mounted on the first frame for fixing the proximal end bone of the affected side; the distal end reduction mechanism comprises a second frame, an adjusting frame hinged with the second frame, a second positioning assembly mounted on the second frame for fixing the distal end bone of the affected side, a third positioning assembly arranged on the adjusting frame for fixing the distal end bone of the affected side; the first frame and the second frame are connected through the connecting rod. After the pelvis fracture and displacement occur, the distal end bone of the affected side and the proximal end bone of the affected side are reduced and closed through the external reduction device. The reduction precision is high, the recovery speed of the patient is fast, and the bone recovery effect is better. At the same time, the large range of scars left by incision of the fracture site is avoided.

The invention relates to a protection device for deep orthopedic surgery. The protection device comprises a fairlead bone crow plate and a fairlead opening crow plate. The fairlead crow plate adopts the front design and the curved side design of a sheet structure with a heart-shaped outline, and is matched with the soft tissue protection baffle and the fairlead sliding groove, so that blood vessels, nerves and visceral organs can be effectively protected, and the risks of bleeding and misoperation in an operation are reduced. The opening crow plate adopts a T-shaped structure front design and an S-shaped sheet structure side design, a safe operation area is formed, cables can pass through the opening crow plate conveniently, and soft tissue embedding and cable winding are avoided. The fairlead bone crow plate and the fairlead distraction crow plate are used in cooperation, the safety and efficiency of the operation can be remarkably improved, the operation risk and the probability of occurrence of complications are reduced, and the fairlead bone crow plate is particularly suitable for deep orthopedic operations in complex anatomical environments such as pelvis, acetabulum and femur.

An acetabular cub system is configured to be secured to a pelvis and may include an acetabular cup and a plurality of bone fasteners. The acetabular cup may include a bone engaging surface and an articulating surface, as well as a plurality of lobed fastener apertures extending from a first opening at the articulating surface to a second opening at the bone engaging surface. The plurality of bone fasteners may be insertable through the lobed fastener apertures to secure the acetabular cup to the pelvis. Each of the plurality of lobed fastener apertures may include a central aperture configured to receive a first bone fastener of the plurality of bone fasteners and one or more aperture lobes intersecting with the central aperture configured to receive a second bone fastener of the plurality of bone fasteners. The central aperture may be larger than the one or more aperture lobes.

The utility model discloses a bone screw for pelvis, and particularly relates to the technical field of bone screws, the bone screw comprises a first screw, a first plug-in groove is arranged in the first screw, a second screw is in threaded connection with the interior of the first plug-in groove, the first screw comprises a first base material layer, a first anti-corrosion layer is arranged outside the first base material layer, and a second anti-corrosion layer is arranged outside the second base material layer. The first screw comprises a first base material layer, the second screw comprises a second base material layer, a second anti-corrosion layer is arranged outside the second base material layer, and the first anti-corrosion layer and the second anti-corrosion layer are anti-corrosion layers formed by coating bioactive substances on the surfaces of the first base material layer and the second base material layer. By means of the second anti-corrosion layer and the first anti-corrosion layer, the first screws and the second screws can have the anti-corrosion capacity, adverse reactions between the first screws and surrounding tissues and between the second screws and surrounding tissues are reduced, the service life of the first screws and the service life of the second screws are prolonged, the first screws can be fixed together through the fixing mechanism, and the service life of the first screws is prolonged. And the practicability of the device is improved.

The invention discloses a seal-imitating robot with two tail movement modes, and belongs to the technical field of underwater navigation equipment. The robot comprises a front body assembly, a rear drive assembly and a flexible outer skin. The front body assembly comprises a head, a control cabin and a seal-imitating front fin, and the rear drive assembly is connected with the rear part of the front body and is formed by sequentially connecting a seal-imitating lumbar vertebra unit, a pelvis unit, a lower limb bone unit and a tail fin unit. The lumbar vertebra unit comprises a bionic segment structure and a lumbar vertebra driving device, wherein the bionic segment structure swings through bending. The lower limb bone unit comprises tibia arranged on the two sides of the pelvis and a tibia driving device for driving the tibia to swing on the same side; the tail fin unit is composed of a fin root bone, tail toes and a tail fin driving device, the multiple tail toes form a fan-shaped support, and the tail fin driving device controls opening and closing of the fan-shaped support and swinging of the fin root bone. The seal imitating robot is compact in design structure, has efficient, smooth and stable motion characteristics and good environmental adaptability, and has excellent maneuverability and continuous operation capacity in various underwater tasks.

The invention discloses a nursing pad for postoperative nursing of scoliosis skull pelvis traction. The nursing pad comprises at least five supporting pads, the nursing pad comprises an upper body supporting area and a lower body supporting area; at least four supporting pads are arranged in the upper body supporting area, and at least one supporting pad is arranged in the lower body supporting area. A receding channel with the adjustable distance is formed between every two adjacent supporting pads. According to the invention, discomfort of a patient caused by deformation of the traction brace can be avoided.

The application discloses a skeleton resetting device, a skeleton positioning method and device, computer equipment and a medium. The initial position coordinate system of a repaired skeleton before installation of a bone needle and the bone needle position coordinate system after installation of the bone needle are obtained, the initial position coordinate system and the bone needle position coordinate system are matched into one repaired coordinate system, the skeleton coordinate information and the bone needle coordinate information in the repaired coordinate system are added to the matching image of the repaired skeleton, and the matching image is displayed. The repaired skeleton image after matching and the coordinate information of each part of the repaired skeleton can be accurately and intuitively displayed, the existing skeleton positioning method in the prior art needs to continuously confirm multiple X-ray images, the mapping between the additional image and the actual position of the pelvis is not intuitive, the doctor needs to determine by experience, and the skeleton positioning is not accurate and the obtained skeleton coordinate information cannot be combined with the medical image of the repaired skeleton.

The invention discloses a 3D printing composite structure type artificial anus, which comprises: 1) a lattice net structure type outer wing which replaces levator ani muscle, is attached to the pelvic floor, and is arranged on the inner side of the bony pelvis; (2) the lattice net structure type inner tube replaces an original cancerization intestinal canal to be matched with a near-end intestinal canal and is used for achieving the excrement conveying function; (3) the pressed telescopic tube is connected with the lattice net-shaped structure type inner tube and pops up when the intestinal tract reaches a certain pressure; and 4) a spiral thread pipe opening and a pressure sensor bottle cap, three circles of spiral threads are arranged at the spiral thread pipe opening so that the pipe opening can be tightly attached to the bottle cap, and the pressure sensor is arranged in the bottle cap and connected with a mobile phone APP through Bluetooth. Reliable adhesion between the outer wing and the abdominal wall and between the inner tube and the intestinal tube can be achieved, falling of a patient in the normal life process after implantation is prevented, the surgical implantation mode is simple and reliable, and the problems that an existing hanging bag type artificial anus is difficult to nurse, multiple in wound complications, poor in appearance, capable of causing psychological injuries to the patient and the like are solved.

A method for facilitating stabilization of a sacroiliac joint is provided. The method includes surgical and stabilization techniques for implanting bone anchors or fasteners such as a first bone screw, a second bone screw, and third bone screw in a pelvis traversing portions of a coxal bone and a sacrum, and extending through or adjacent at least a portion of a corresponding sacroiliac joint. The bone anchors or fasteners such as the first bone screw, the second bone screw, and the third bone screw can be inserted at different angles and locations to form a lattice structure that serves in securing the position of a coxal bone and a sacrum relative to one another to facilitate stabilization across a corresponding sacroiliac joint.

The invention relates to a motor vehicle (1) comprising: - a front body structure (100) including a transverse bumper beam (101); - a front bumper skin (140) covering said structure; - a hood (200) the rear portion of which is pivotally mounted relative to said structure; - a lock (110) designed to cooperate with a strike wire (210) attached to said hood; - a sheet metal support (120) carrying said lock and comprising an upper attachment portion (121) fixed to a front crossmember (130) rigidly connected to said structure, said support also comprising a front portion (124) extending substantially vertically opposite said skin, between said lock and said beam to which it is rigidly connected; and - an energy absorption device (160) interposed longitudinally between said skin and said front portion of the support. Figure to be published with the abbreviation: Fig. 1

The invention provides an implant prosthesis for acetabular bone defect and a manufacturing method, the implant prosthesis comprises a keel body and a hollow skeleton, one end of the keel body is provided with a connecting part connected with the top wall of the pelvis, the other end of the keel body is provided with a curved plate, and the upper surface and the lower surface of the curved plate are both lower than the upper surface and the lower surface of the connecting part; the size of the cross section of the curved plate in the radian direction is gradually increased from the connecting part end to the end far away from the connecting part, and the curved plate shrinks at the end face of the other end close to the keel body to form a preset cross section so as to adapt to the anatomic form of the acetabulum; the hollowed-out framework is connected to the other end of the keel body through bone cement and wraps and covers the curved plate. The hollow skeleton further extends out of the other end of the keel body and is used for being connected with a transpubic ramus pelvic defect prosthesis; the keel body and the hollow skeleton are both made of an osseointegration material or a bone biocompatibility material; the stability of acetabular bone defect reconstruction can be greatly improved, and the risk of loosening of the implanted prosthesis is remarkably reduced.

The pelvis fixing device comprises a fixing band and a spinning type tourniquet, the two ends of the fixing band are each provided with an insertion opening, the spinning type tourniquet penetrates through the insertion openings, and the two ends of the fixing band are detachably fixed through the spinning type tourniquet; a plurality of pressure-reducing inflatable cushions are symmetrically arranged in the center of the inner side of the fixing belt, the pressure-reducing inflatable cushions are communicated with an inflation assembly, and hard supporting plates are fixedly arranged at the two ends of each inflatable cushion; an invisible pocket is arranged on the outer side of the fixing band, a broadband is integrally formed in the invisible pocket, and the invisible pocket is filled with the broadband. The pelvis fixing band has the effect of effectively relieving pressure injury caused by long-time wearing of the pelvis fixing band for a patient.

The invention relates to a sole modular rehabilitation training device which comprises a sole adapter and replaceable functional modules, the bottom surface of the adapter is divided into a half sole area, a middle foot area and a heel area, and different functional modules are mounted in the areas in a clamping manner. Through gradient adjustment and dynamic combination of the modules, multi-target collaborative treatment such as strephenopodia correction, gravity center transfer induction and pelvis control is realized. The asymmetric structure of the T-shaped block can guide a patient to actively shift the center of gravity, and the anti-skid lines and the ankle fixing belt ensure the stability of mechanical transmission. Passive limitation of a traditional brace is broken through, full-cycle rehabilitation from a soft paralysis phase (the contact area is larger than 85%) to a recovery phase (the contact area is 40%-60%) is covered, clinical data shows that gait symmetry of a patient is improved, treatment cost is reduced, and independent rehabilitation without assistance is finally achieved.

Disclosed in the present application are a method and apparatus for mirroring processing-based determination of acetabular cup prosthesis information. The present application relates to the field of information processing. The method comprises: acquiring a three-dimensional bone model of a patient, and establishing a coordinate system in the three-dimensional bone model according to target feature points in the three-dimensional bone model, wherein the three-dimensional bone model at least comprises a three-dimensional model of the pelvis of the patient; when the affected-side acetabular fossa is incomplete, performing mirroring processing on a healthy-side pelvis model in the three-dimensional bone model according to the coordinate system, and determining information of the affected-side acetabular fossa according to the mirrored healthy-side pelvis model; and determining prosthesis information of an acetabular cup prosthesis according to the information of the affected-side acetabular fossa, wherein the prosthesis information comprises at least one of the following: a prosthesis model and a prosthesis implantation position. The present application solves the technical problem in the related art where the accuracy of prosthesis information is low when determining prosthesis information of an acetabular cup prosthesis according to the affected-side acetabular fossa of a patient.

The invention relates to the technical field of medical apparatus and instruments, and discloses an adjustable orthopedic tractor which comprises a fixed base provided with a pelvis clamping mechanism and a central bolt fixing hole; the composite sensing supporting system comprises a telescopic thigh supporting piece and a tail end shank supporting piece which are arranged in a linkage mode, the telescopic thigh supporting piece is movably connected to the fixed base through a first rotating connecting piece, and a first lifting type bearing mechanism is arranged on the bearing side of the telescopic thigh supporting piece; through the synergistic effect of the pelvis clamping mechanism and the central bolt fulcrum, the traction force reference is transferred from a traditional bed tail to a pelvis bony structure of a patient, traction force vectorization errors caused by deformation or displacement of a bed body are eliminated, a direct and stable mechanical reference system is provided for lower limbs, and the fracture reduction precision is remarkably improved.