摘要:
A locking fastener for use with a bone plate. The fastener has threads on its shank to engage bone and threads on its head to engage the internal threads of the bone plate. The threads in the head may have a constant major diameter and a tapered minor diameter that creates a radial interference fit. The threads in the head may also have a variable pitch that creates an axial interference fit. The head may have a low profile to reduce soft tissue irritation.
摘要:
Processes for the production of metal nanoparticles. In one aspect, the invention is to a process comprising the steps of mixing a heated first solution comprising a base and/or a reducing agent (e.g., a non-polyol reducing agent), a polyol, and a polymer of vinyl pyrrolidone with a second solution comprising a metal precursor that is capable of being reduced to a metal by the polyol. In another aspect, the invention is to a process that includes the steps of heating a powder of a polymer of vinyl pyrrolidone; forming a first solution comprising the powder and a polyol; and mixing the first solution with a second solution comprising a metal precursor capable of being reduced to a metal by the polyol.
摘要:
Processes for controlling ink migration during the formation of printable electronic features. In a preferred aspect, the invention is to a process for forming at least a portion of an electronic feature. The process includes the steps of: (a) providing a first substrate having a first surface; (b) modifying the first surface to form a modified surface; and (c) applying an ink to at least a portion of the modified surface, wherein the modified surface interacts with the ink to inhibit lateral and/or longitudinal migration of the applied ink, and wherein the applied ink forms at least a portion of the electronic feature. In another aspect, the invention is to a process for encouraging electronic ink spreading with a surfactant.
摘要:
Automated systems and methods for creating and obtaining devices, including biomedical implants. Systems can have a surgeon's device, an automated platform, and a server. The surgeon's device can send a request for a template of a biomedical implant, and can access tools to edit the template. The automated platform can receive the edited template, and can generate a response. The response can include translating the edited template into a design for a biomedical implant. The response can further include generating a notice if the edited template falls outside of an acceptable range, or if the edited template is similar to the design of a standard biomedical implant. There can also be provided a manufacturing facility that can manufacture the implant and send the implant to the surgeon.
摘要:
Bone plates with an upper surface, a bone contacting surface, and at least one hole extending through the upper and bone contact surfaces are disclosed. A hole interchangeably accepts a compression screw for compression of a fracture and a locking screw that threads into the bone plate.
摘要:
A method for the detection of an analyte in a fluid, comprising contacting the fluid with a holographic element comprising a medium and a hologram disposed throughout the volume of the medium, wherein an optical characteristic of the element changes as a result of a variation of a physical property occurring throughout the volume of the medium, wherein the variation arises as a result of interaction between the medium and the analyte, and wherein the reaction and the variation are reversible; and detecting any change of the optical characteristic.
摘要:
Methods, systems, and devices according to this invention provide drill guides for optimal placement of fixation elements, such as half pins, into a patient's bone. According to one embodiment, a collar frame with a collar adapted to receive a bar of an orthopedic external fixation system such that the collar may be moved linearly or rotationally about the bar is coupled to a guide frame including a bore through which a fixation element of the external fixation system may be inserted. The coupling between the collar frame and the guide frame allows for them to rotate about at least one axis relative to each other. In one embodiment, the collar frame and the guide frame may rotate about three axes relative to each other.
摘要:
Systems, devices and methods are disclosed for treating fractures. The systems, devices and methods may include one or both of an implant, such as an intramedullary nail, and a fastening assembly, such as a lag screw and compression screw assembly. The implant in some embodiments has a proximal section with a transverse aperture and a cross-section that may be shaped to more accurately conform to the anatomical shape of cortical bone and to provide additional strength and robustness in its lateral portions, preferably without requiring significant additional material. The fastening assembly may be received to slide, in a controlled way, in the transverse aperture of the implant. In some embodiments, the engaging member and the compression device are configured so that the compression device interacts with a portion of the implant and a portion of the engaging member to enable controlled movement between the first and second bone fragments. This configuration is useful for, among other things, compressing a fracture.
摘要:
A modular intramedullary nail which, selectively, includes two or three connectable sections that are connectable end to end. In the two section nail the second section is an elongated curved nail component having an elongated, open-ended longitudinal bore, and terminating in a distal end. The three section nail includes an upper proximal nail component having an open-ended bore. The second section is a central nail section that is an elongated curved nail component having an open ended longitudinal bore. The third section is a lower distal nail component having an elongated open ended longitudinal bore. The nail components are connected at the end using corresponding conical socket and conical projecting end portions of adjoining end nail components that can be fitted together and secured upon impact. Upon assembly, the connections are self orienting, providing corresponding tooled "flat" portions adjacent the respective conical socket and conical projecting end portions of the nail components. This interlocking tooled flats align and abut upon assembly so that the adjoining nail components only align in one relative rotational position. The assembled nail thus provides an elongated continuous open ended bore that receives a cannulated fastener. In the three section nail, the fastener extends the full length of the longitudinal bore of the assembled three nail sections. In the two section nail, the fastener extends into the distal end. An upper enlarged head portion of the cannulated fastener grips the proximal nail component. The distal end portion of the cannulated fastener has external threads which engage corresponding internal threads within the bore of the distal nail component.
摘要:
A modular intramedullary nail includes three connectable sections that are connectable end to end. The three sections include an upper proximal nail component having an open ended bore. The second section is a central nail section that is an elongated curved nail component having an open ended longitudinal bore. The third section is a lower distal nail component having an elongated open ended longitudinal bore. The nail components are connected and the end using corresponding conical socket and conical projecting end portions of adjoining end nail components that can be fitted together and secured upon impact. Upon assembly, the connections are self orienting, providing corresponding tooled "flat" portions adjacent the respective conical socket and conical projecting end portions of the nail components. This interlocking tooled flats align and abut upon assembly so that the adjoining nail components only align in one relative rotational position. The assembled nail thus provides an elongated continuous open ended bore that receives a cannulated fastener. The fastener extends the full length of the longitudinal bore of the assembled three nail sections. An upper enlarged head portion of the cannulated fastener grips the proximal nail component. The distal end portion of the cannulated fastener has external threads which engage corresponding internal threads within the bore of the distal nail component.