摘要:
According to one embodiment of the invention, a spinal fixation system includes a bone screw having a longitudinal access and a fixation rod configured to connect the bone screw to at least one additional bone screw. The fixation rod is lateral to the longitudinal axis. A coupling mechanism includes a bone screw securing device configured to secure the coupling mechanism to the bone screw and a fixation rod securing device configured to secure the coupling mechanism to the fixation rod. The spinal fixation system further includes a fastening mechanism. Rotation of the fastening mechanism secures the bone screw securing device to the bone screw and the fixation rod securing device to the fixation rod.
摘要:
A bone fixation system includes a bone screw having a longitudinal axis. A passage in the bone screw extends along the longitudinal axis and has a proximal opening at the proximal end of the bone screw and a distal opening at a distal end of the bone screw. A drill extends through the passage, a first end of the drill extending out the distal opening. The combination of the bone screw and the drill is self-drilling.
摘要:
A vertebral prosthesis is adapted to be implanted adjacent a spinal disc prosthesis. According to one embodiment, the vertebral prosthesis includes a shaft and an endplate coupled to one end of the shaft. The endplate is adapted to be implanted adjacent a disc prosthesis, thereby obviating the need to fuse the endplate to an adjacent vertebral body.
摘要:
This disclosure provides an improve methods and systems for performing Femtosecond Laser Assisted Cataract Surgery. By creating an inner radius in the eye capsule and lens fragmentation channels fluidically connected to the inner radius, then using viscoelastic fluid to separate the cataract, internal pressure is reduced on the peripheral portion of the cataract during the surgical procedure. Further, laser settings are oriented to permit instruments to break apart cataract nucleus into pieces with reduced ultrasound energy. The result of this improved method is a lessened likelihood of anterior capsular tears and a reduced chance of complications.
摘要:
A method includes acquiring, via an antenna disposed within a container, information associated with a radio frequency identification tag coupled to an object disposed within a container via an antenna. The information is transferred to an exterior radio frequency identification tag disposed outside of the container. The exterior radio frequency identification tag is configured to send an inventory indicator associated with the information to an external interrogator unless the container is open.
摘要:
A method and system managing radio frequency identification (RFID) systems. The system monitors the performance of systems that use RFID tags and readers. It operates at multiple levels to ensure the optimal performance of readers, tags, antennae, and the information processing systems that acquire and convey tag data. The management system may employ artificial intelligence techniques such as genetic algorithms, fuzzy logic, neural networks, Bayesian networks, support vector machines or statistical methods to develop, maintain and exploit models of RFID system behavior. By comparing the actual performance of RFIDs and related components, the management system can detect and report failures and partial failures of components. The management system may also send signals to components to enhance performance of the overall RFID system.
摘要:
A method and system for simulating radio frequency identification (RFID) systems. The system determines RFID system configurations and components that meet user constraints to facilitate planning for RFID system deployment. The simulator updates a database on the basis user input and radio frequency interrogator data from deployed systems.
摘要:
A modular joint prosthesis is intended for implantation in a patient. According to an exemplary embodiment, the modular joint prosthesis includes a head and a stem coupled to the head. The stem has a proximal portion coupled to the head and a distal portion configured to extend into a long bone of the patient. The distal portion may be removed from the stem after implantation of the prosthesis without also removing the proximal portion.
摘要:
Fenestrated bone screws and inserts disposed therein are provided for the delivery of medicants to bone. The bone screws provide a method to strengthen or repair damaged bones, or to promote bony fusion, and in conjunction with the inserts, provide a method of delivering a continuous or regulated amount of medicant to a desired location within the bone such as a fracture interface. In one embodiment, the inserts are customized in size, shape, or configuration after the bone screw has been inserted into the patient.
摘要:
A locking wedge interposed between insulating material and masonry spaced from a wall structure for biasing the insulating material against the wall structure, said locking wedge having a generally U-shaped body with a pair of spaced-apart arms joined at one end by a web, said arms defining therebetween a tapered slot increasing in width towards the distal ends of the arms, said body being uniformly tapered in thickness at the said distal ends of the arms, and a plurality of equispaced transverse notches forming a serriform pattern on one face of the body substantially along the length of the arms for receiving a longitudinal rod in said notches.