301 results about "Orthopaedic procedures" patented technology

The present invention provides instrumentation that facilitates access to both sides of the vertebral body from a single access point. More particularly, the present invention provides bendable access devices that can be steered so as to traverse the vertebral body from the point of entry into the vertebral body, through the cancellous bone within the vertebral body, and to the contralateral side of the vertebral body. This steerability is provided by forming the access device with a series of slots, grooves, or notches in the side of the access device near the distal end of the access device, which slots, grooves, or notches reduce the bending stiffness of the access device. As a result, the distal end of the access device bends as it is being advanced into the vertebral body.

A device for use in tensioning a cable around a long bone for use in orthopaedic procedures is provided. The device includes a body. The device also includes first connecting means operably associated with the body for connecting a first end of the cable to the device. The device also includes second connecting means operably associated with the body for connecting a second end of the cable to the device. The first connecting means and / or the second connecting means include a unidirectional locking mechanism for tightening the cable.

Surgical anchoring systems and methods are employed for the correction of bone deformities. The anchoring system and its associated instrument may be suitable for surgical repair of hallux valgus, tarsometatarsal sprains, ankle ligament reconstruction, spring ligament repair, knee ligament reinforcement, acromioclavicular sprains, coracoclavicular sprains, elbow ligament repair, wrist and hand ligamentous stabilization or similar conditions. The anchoring system may include a fixation system for anchoring two or more sections of bone or other body parts and a system for aligning of one section relative to another section.

Systems and methods are provided for navigated placement of bone engaging elements, such as support pins used to support a cutting block on a bone for resection. In one embodiment, a tool configured to drive a pin into a bone is outfitted with a position tracking element. The system includes a localizing device that senses a signal from the position tracking element and feeds position information to a processor that makes a real-time comparison of the position of the tool to a location on the bone for placing the pin. When the tool spatial position coincides with the location on the bone, an annunciator is activated providing an audible or visible signal to the surgeon to operate the tool. In another embodiment, when the spatial position coincides, the processor directs an on-board controller of the tool to activate the tool. In another embodiment of the invention, the tool is continuously operating and the on-board processor controls a sheath that initially covers the working end of the tool. In yet another embodiment, a guide apparatus is configured to be mounted to a bone and provides multi-degree of freedom gross and fine adjustments of a pin guide. The pin guide carries a position tracking element so that its real-time spatial position relative to a location on the bone can be evaluated.

A computer assisted surgery system with is enhanced graphics features is described for assisting a surgeon in orthopaedic procedures. A system is described for use in inserting multiple guide pins in hip fracture surgery using a single bore drill guide that has a graphical representation comprising its real trajectory and one or more virtual trajectories, the virtual trajectories representing potential positions of other guide pins to be placed during the procedure. Additionally, representations of inserted guide pins and virtual trajectories may be retained on the display at their inserted positions for use in aligning subsequent guide pins. A system is also described for orientation of an acetabular cup in a total hip replacement surgery. During cup insertion, the surgeon is provided with information regarding the orientation of the cup with respect to a pelvic reference frame that is based on accepted pelvic landmarks. The positions of each landmark is calculated by the system when a probe with a virtual tip, separate from its physical tip, is overlaid on the landmark in roughly orthogonal images of the pelvis.

Systems and methods are provided for navigated placement of bone engaging elements, such as support pins used to support a cutting block on a bone for resection. In one embodiment, a guide apparatus is configured to be mounted to a bone and provides multi-degree of freedom gross and fine adjustments of a pin guide. The pin guide carries a position tracking element so that its real-time spatial position relative to a location on the bone can be evaluated.

The invention discloses a method for manufacturing a navigation template of human bone surgery and a female die thereof. The method comprises the following steps of: a, acquiring raw data of a patient bone, and establishing a three-dimensional model on a computer; b, analyzing the three-dimensional model, extracting a bone curve image near a surgical screw inlet part, and designing a screw positioning rod; c, establishing a reverse template fitted with a bone curve near the surgical screw inlet part to make the screw positioning rod matched with the reverse template through reverse engineering software, establishing a three-dimensional model of the female die of the surgical navigation template, and manufacturing a physical model of the female die; and d, pouring biomedical materials into the physical model of the female die to make the bottom three-dimensional shape of the biomedical material model fitted and consistent with the bone curve near the surgical screw inlet part, and hardening to form the biocompatible navigation template of human bone surgery. The biocompatible navigation template of the human bone surgery manufactured by the invention makes the surgery safer and achieves better effect.

The invention discloses a three-dimensional guiding method for use in an orthopaedic operation and a guider thereof. In the invention, an acceleration sensor and a magnetic field sensor are fixedly arranged on an operating instrument, wherein the acceleration sensor acquires gravity acceleration components corresponding to the axes of the operating instrument, and the magnetic field sensor acquires the magnetic field components corresponding to the axes of the operating instrument; the acquired gravity acceleration components and magnetic field components are converted into azimuth angle and sagittal saw angle information which is to be displayed in real time; and real-time three-dimensional orientation guiding is performed according to the displayed azimuth angle and sagittal saw angle information. The guider can be used to help medical care personnel to determine the sizes of azimuth angles and sagittal saw angles in clinic so as to avoid various human errors. Meanwhile, the guider has a small volume and therefore is convenient to carry; and when the guider is used, the medical care personnel can acquire real-time position accurate information, so that the successful rate of an operation can be increased.

The present invention generally relates to bioactive antibacterial materials and composites that enhance bone growth while preventing surgical site infection. The present invention also relates to bioactive antibacterial materials and composites that include a bimodal bioactive glass particle size distribution. The bioactive antibacterial composite finds utility in a variety of clinical applications including spine and orthopaedic procedures.

Apparatus (20, 120, 300) and methods for use in the performance of minimally invasive orthopaedic procedures, including apparatus and methods for use in the performance of such procedures under the visualization of an endoscope (22), are herein disclosed. Such procedures include a minimally invasive intramedullary nailing procedure, a minimally invasive bone graft harvesting procedure, a minimally invasive pelvic osteotomy procedure, an orthopaedic implant revision procedure, and a minimally invasive percutaneous bone plating procedure.

The invention provides an orthopedic surgery navigation system based on multimode image fusion, which comprises a binocular vision positioning camera used for acquiring space coordinates of a passiveinfrared reflection marking ball placed on a surgical instrument and the skin surface of a subject in real time; an image segmentation module used for accurately segmenting a spine part in an initialimage; a space coordinate registration module used for registering the space coordinates and the image coordinates; a surgical instrument calibration module used for establishing a conversion relationship between surgical instrument tip coordinates and passive infrared reflection marking ball coordinates placed at the tail end; a multimode image registration module used for registering an intraoperative cone beam CT image to a preoperative CT image; and a visual interface module used for establishing a three-dimensional image and displaying the position of the surgical instrument in the subject image in real time during a surgery. According to the invention, the real-time position of the surgical instrument in the body of the subject during the surgery can be accurately positioned, accurate and reliable navigation is provided for the orthopedic surgery, the surgical risk is effectively reduced, the surgical time is reduced, and the system is simple and convenient to operate and high inapplicability.

The embodiment of the invention discloses a joint replacement surgical robot navigation and positioning system and method. The system comprises a preoperative planning module which is used for carrying out segmentation and reconstruction of a hip joint according to the obtained medical image data of the hip joint, obtaining a three-dimensional model of the hip joint, carrying out the preoperative planning, and determining a surgical scheme; an optical navigation positioning module which is used for generating a navigation instruction according to the surgical scheme, registering the hip joint three-dimensional model according to the spatial position relationship between the hip joint of a patient and an operation probe to obtain a hip joint solid model, and determining the bone operation position of the patient according to the hip joint solid model; and a mechanical arm control module which is used for moving an end effector to the bone surgery position of the patient and controlling the end effector to perform osteotomy, filing and press-fit operation on the hip joint according to the navigation instruction. Preoperative planning is executed through the orthopedic surgery robot, surgery operation is completed at a high level, the operation intensity of doctors can be greatly reduced, the operation time is saved, and the operation precision is improved.

A computer aided system of orthopedic surgery is disclosed and omnidirectional osteogenesis is provided as an example thereof. To perform this surgery a craniofacial anatomic surgical simulator (CASS) is described, in which simulator a stereolithographic medical model is mounted. The medical model hereof is modified for this purpose so that pre-operative intra-oral devices, including custom-fitted fixation plates, can be crafted. An occlusal splint formed on the stereolithographic model acts as an armature for a docking bar which is, during the surgical operation, rigidly affixed to the fixation plate(s). The CASS, in one embodiment hereof, includes an indexing means for alignment of the stereolithographic model. The CASS also simulates the temporomandibular joint and fixedly mounts segments of the model in a post-operative condition.

An orthopedic tool being made from an alloy in the group comprising stainless steel alloys, cobalt-chrome alloys, titanium alloys and alumina and zirconia ceramic alloys, and having a density less than 98% of a theoretical possible density for the alloy, the orthopedic tool being made by a metal injection moulding process.

The invention discloses an acetabulum square area bone fracture plate which belongs to the technical field of orthopedic surgical instruments and is used for effectively fixing acetabular fractures. The technical scheme is as follows: the bone fracture plate has a three-dimensional structure, and the shape of each part of the bone fracture plate is respectively matched with curved shapes of an acetabulum square area, so that each part of the bone fracture plate can effectively fix the acetabular fractures. The bone fracture plate disclosed by the invention can effectively fix acetabular anterior and posterior column fractures at the same time, the coverage and support to the acetabulum square area can be increased by fixing arcuate lines and ischial spine parts of the acetabulum square area, and acetabular anterior and posterior columns can be stably reconstructed from the medial wall of the square area. The bone fracture plate disclosed by the invention is originated in the treatment of hip fractures, has a simple structure, is convenient to use, achieves unexpected good effects, solves difficult problems in the treatment of acetabulum square area bone fractures, has remarkable benefits, and is worthy of popularization.

The invention relates to the technical field of medical instruments, in particular to a surgical instrument clamping device for an orthopedic surgical robot, which comprises a connecting frame for quickly detaching and connecting a mechanical arm of the surgical robot, the connecting frame is provided with a shaft sleeve assembly, a movable clamping sleeve and an elastic locking part, the shaft sleeve assembly is used for being sleeved with a surgical instrument in a matched mode, the movable clamping sleeve is in coaxial butt joint with the shaft sleeve assembly, the elastic locking part is in transmission connection with the movable clamping sleeve, and the movable clamping sleeve is driven by the elastic acting force of the elastic locking part to clamp the surgical instrument sleeved with the shaft sleeve assembly. And the clamping of the surgical instrument by the movable clamping sleeve is released by operating the elastic locking part. According to the surgical instrument clamping device for the orthopedic surgical robot, stable connection between a mechanical arm of the surgical robot and an orthopedic surgical instrument can be achieved, the surgical precision is improved, connection is easy and convenient, and the surgical time efficiency can be guaranteed and improved.

Systems and methods for optimizing parameters of an orthopaedic procedure for a particular patient, including parameters relating to the anatomic and biomechanic fit of an implant or implant system implanted into the patient's joint. These systems and methods may utilize patient-specific information gathered pre-operatively in conjunction with optimization algorithms to determine an optimal implant design and an optimal position and orientation for implantation of the implant into the particular patient's joint.

The invention provides a robot for minimally invasive orthopedic surgery. The robot is characterized in that the robot for the minimally invasive orthopedic surgery is composed of a robot body, X-ray perspective equipment, a master control system, a ray registration device, a cross-shaped registration device, a double-implantation mechanical hand and a single-implantation mechanical hand, the master control system is composed of a control table, a computer, a manual controller, an external scene display system and a motor driver, a liquid crystal displayer is adopted as the displayer of the external scene display system, registration is carried out on virtual labels arranged in the human vertebrae and same virtual labels on an extracorporal registration device through X-rays, and transpedicular implantation or puncturing is guided.

A kit for use in orthopaedic procedures on a long bone is provided. The kit includes a cable and a device. The device includes a body. The device also includes first connecting means operably associated with the body for connecting a first end of the cable to the device. The device also includes second connecting means operably associated with the body for connecting a second end of the cable to the device. The first connecting means and / or the second connecting means include a unidirectional locking mechanism for tightening the cable.

The invention relates to an orthopedic surgery device and an orthopedic surgery robot system. The orthopedic surgery device comprises an orthopedic surgery tool and two moving mechanisms, and the two moving mechanisms provide reciprocating movement variables in different directions for the orthopedic surgery tool; the orthopedic surgery device further comprises a decoupling mechanism and an orthopedic surgery tool clamping mechanism. The orthopedic operation tool clamping mechanism is used for installing the orthopedic operation tool and is connected with the decoupling mechanism; the decoupling mechanism is connected with the two moving mechanisms, and under the combined action of the two moving mechanisms, the orthopedic operation tool reaches any point in the stroke range. According to the invention, the surgical operation is simpler, more convenient and easier, the stability is stronger, the precision is higher, the surgical efficiency is improved, the tired and difficult-to-control surgical risk of doctors during bare-handed operation is reduced, and the surgical controllability and safety are improved. The orthopedic surgery robot system comprises the orthopedic surgery device and a control center, and the control center is connected with and controls a driving motor of the orthopedic surgery device, so more intelligent and higher-precision surgery control is realized.

The invention relates to an orthopedics department reset positioning robot, which solves the technical problem that an existing orthopedics department operation robot is low in reset precision during an operation and comprises a reset robot body, a navigation robot and a positioning robot body, the reset robot body comprises a reset platform, a far-end fixator and a far-end reference frame, and the far-end reference frame is fixed to the far-end fixator; the far-end fixator comprises a connecting base plate, a movable connecting plate, a first locking device, a reference frame, a first connecting side plate, a second connecting side plate, a first fixed sleeve, a second fixed sleeve, a fixing plate, a first fixed needle, a second fixed needle, a third fixed sleeve, a fourth fixed sleeve, a third fixed needle and a fourth fixed needle. The invention is widely applied to orthopedic surgery.

A method for correcting position of an osteotomy guide tool and an orthopedic operation system are disclosed. A trackable element mounted on the osteotomy guide tool or on the robotic arm tracks the position of the osteotomy guide tool and generates position information of the trackable element. According to the current position and the desired position of the trackable element, a robotic arm drives the osteotomy guide tool and the trackable element to move, until the trackable element is moved to the desired position. This method does not need to consider the absolute position accuracy of the robotic arm, and does not rely on the experience of the surgeon. The tool has several guiding features, which can provide guides for osteotomy operations, so that the same osteotomy guide tool can perform multiple operations of osteotomy and punching, thus greatly reducing the operation time and improving the operation efficiency.

The invention belongs to the technical field of glass bone restoration, and discloses a porous biological activity glass bone restoration material, a preparation method and application thereof. Aftera prepared porous biological activity glass bone restoration material being implanted into an organism, the biocompatibility is good; the prepared bone restoration material is composed of natural macromolecular materials and inorganic materials being bone-like components, the surface of the prepared bone restoration material is capable of forming a good interface relation with cells, any parts ofany bone defect can be implanted in a orthopedic surgery, application parts are not limited, good biocompatibility, no cytotoxicity and no immune rejection are achieved. According to the prepared bonerestoration material adopted by the preparation method, good degradation performance is achieved, materials are gradually degraded with growth of new bone, and thus no occupation and no interfere tobone reconstruction are achieved; and the restoration cycle is shortened.

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 belongs to the field of medical appliances and especially relates to a method and system for registration of three-dimensional orthopedic operation navigation. The invention solves the technical problem that the method and system for the registration of the three-dimensional orthopedic operation navigation with simple and convenient operations and a quick registration speed are provided. The adopted technical scheme is characterized in that the method for the registration of the three-dimensional orthopedic operation navigation comprises the steps that image coordinates of a mark point on a die body are collected; a conversion relation between a spatial motion track of a C-shaped arm and spatial coordinates of the mark point on the die body is determined; the spatial motion track of the C-shape arm is collected; the spatial coordinates of the mark point on the die body are computed according to the conversion relation between the spatial motion track of the C-shaped arm and the spatial coordinates of the mark point on the die body before an operation as well as the collected spatial motion track of the C-shaped arm; and the registration is conducted on the image coordinates of the mark point on the die body and the spatial coordinates of the mark point on the die body. The method and the system are applicable to the field of medical appliances.