摘要:
Systems and methods for optically imaging a dental structure within an oral cavity by moving one or more image apertures on an arm coupled to a fixed coordinate reference frame external to the oral cavity; determining the position of the one or more image apertures using the fixed external coordinate reference frame; capturing one or more images of the dental structure through one or more of the image apertures; and generating a 3D model of the dental structure based on the captured images.
摘要:
Systems and methods for optically imaging a dental structure within an oral cavity by moving one or more image apertures on an arm coupled to a fixed coordinate reference frame external to the oral cavity; determining the position of the one or more image apertures using the fixed external coordinate reference frame; capturing one or more images of the dental structure through one or more of the image apertures; and generating a 3D model of the dental structure based on the captured images.
摘要:
Systems and methods for imaging a dental occlusal registration impression; developing a digital 3D surface contour model of the occlusal registration impression from the image data; electronically transferring the data representing the digital 3D surface contour model of the occlusal registration impression; fabricating a physical replicate of the occlusal registration impression; correlating features on upper and lower jaw dental models with features on the replicate occlusal registration impression model; and determining occlusal alignment of the upper and lower jaw dental models using the replicate occlusal registration impression model.
摘要:
Systems and methods for generating a three-dimensional (3D) model of a structure include coating the structure with a luminescent substance to enhance the image quality, the luminescent substance having an excitation range; and capturing one or more images of the structure through at least one image aperture each having a frequency sensitivity, wherein the frequency sensitivity of each image aperture is maximized for the luminescent material emission range.
摘要:
Methods and systems for treating teeth include capturing a digital dental model taken within an oral cavity; modifying the digital model in planning a dental treatment or in designing a tooth die model for a dental prosthetic; creating physical models from the original or modified digital models: and using the physical models as a pattern for fabrication and fit check of a dental prosthetic.
摘要:
A method is provided for measuring inhibition of platelet reactivity in an individual treated with a drug-eluting stent (DES). First, a blood sample is obtained from an individual treated with a DES and a P2Y12 antagonist. The blood sample is then mixed with particles comprising an attached GPIIb/IIIa receptor ligand, adenosine diphosphate (ADP) and prostaglandin E1 (PGE1). The mixture is incubated under conditions suitable for agglutinating particles, and platelet-mediated agglutination is assessed in the mixture. The absence or reduction of agglutination indicates that the individual treated with a DES has reduced platelet reactivity. Also provided is a kit for measuring inhibition of platelet aggregation by a P2Y12 receptor antagonist that includes a GPIIb/IIIa receptor ligand immobilized on a particle, adenosine diphosphate (ADP), prostaglandin E1 (PGE1), an anticoagulant, and a buffer to maintain the anticoagulated blood in a condition suitable for platelet aggregation.
摘要:
A method is provided of determining whether an individual has reduced ability to form platelet thrombi due to inhibition of platelet activation initiation, signal transduction and/or GPIIb/IIIa blockade. A blood sample is obtained from the individual being assessed. The blood sample is mixed in combination with 1) an anticoagulant; 2) sufficient buffer to maintain the pH and salt concentration of the anticoagulated blood within a range suitable for platelet aggregation; 3) a platelet GPIIb/IIIa receptor ligand immobilized on a solid surface; 4) one or more agents to enhance a signal transduction pathway and 5) a receptor activator. The combination is incubated under conditions for agglutinating particles. Platelet-mediated agglutination is assessed in the agitated mixture. The absence of agglutination indicates that the individual has a reduced ability to form platelet thrombi.
摘要:
A portable, hand-held data processing assembly of modular structure includes a base unit with a keyboard and a display screen. An indicia reader module is housed in a housing shell which is attachable to the base unit. The indicia reader module can contain a reflected light indicia reader for non-contact essentially instantaneous reading of bar codes of the like disposed in a spaced, non-contacting relationship to the assembly. The indicia reader module can also include a processor. The base can include a light source. Additionally, the base unit can include a battery for powering the hand-held data processing assembly. A data collection and communications module can include a stacked arrangement of a communications interface main circuit board, a radio and a laser scanner assembly which are housed in a housing shell attachable to the base unit. In this arrangement, the radio is mounted in spaced relationship to one side of the main circuit board, while the laser scanner assembly is mounted to the other side of the main circuit board. A support frame and a plurality of ground planes in the sandwiched main circuit board and a routing circuit board form an RF cage for shielding RF interference which may be generated by the radio. Also disclosed is a method for reducing the operational power consumption requirements of laser bar code scanners by analyzing reflected laser light in order to determine the presence of optically readable information sets.
摘要:
A method is provided of determining whether an individual has reduced ability to form platelet thrombi due to inhibition of platelet activation initiation, signal transduction and/or GPIIb/IIIa blockade. A blood sample is obtained from the individual being assessed. The blood sample is mixed in combination with 1) an anticoagulant; 2) sufficient buffer to maintain the pH and salt concentration of the anticoagulated blood within a range suitable for platelet aggregation; 3) a platelet GPIIb/IIIa receptor ligand immobilized on a solid surface; 4) one or more agents to enhance a signal transduction pathway and 5) a receptor activator. The combination is incubated under conditions for agglutinating particles. Platelet-mediated agglutination is assessed in the agitated mixture. The absence of agglutination indicates that the individual has a reduced ability to form platelet thrombi.
摘要:
A method is provided for measuring inhibition of platelet reactivity in an individual treated with a drug-eluting stent (DES). First, a blood sample is obtained from an individual treated with a DES and a P2Y12 antagonist. The blood sample is then mixed with particles comprising an attached GPIIb/IIIa receptor ligand, adenosine diphosphate (ADP) and prostaglandin E1 (PGE1). The mixture is incubated under conditions suitable for agglutinating particles, and platelet-mediated agglutination is assessed in the mixture. The absence or reduction of agglutination indicates that the individual treated with a DES has reduced platelet reactivity. Also provided is a kit for measuring inhibition of platelet aggregation by a P2Y12 receptor antagonist that includes a GPIIb/IIIa receptor ligand immobilized on a particle, adenosine diphosphate (ADP), prostaglandin E1 (PGE1), an anticoagulant, and a buffer to maintain the anticoagulated blood in a condition suitable for platelet aggregation.