摘要:
A method of determining a portion of light at a given wavelength which is incident on a material that is absorbed by the material, the method comprising: transmitting a pulse of light at the given wavelength so that the pulse traverses a path through the material; generating a first signal responsive to light in the light pulse that traverses the path length without being absorbed by the material; generating a second signal responsive to energy that the material emits responsive to a portion of the light from the light pulse that is absorbed by the material as the light pulse traverses the path; and using the first and second signals to determine the absorbed portion.
摘要:
Determining the temperature of the water by measuring the absorption coefficient of water (32). The method for determining temperature of a first substance comprising acquiring a measurement of the absorption coefficient of the first substance at least one wavelength (30); and determining the temperature using the measurement of the absorption coefficient and known values of the absorption coefficient as a function of temperature at the at least one wavelength.
摘要:
The present disclosure presents systems, devices and methods for injection of drugs, substances and/or chemicals to a patient and for improving their effectiveness once they are injected are disclosed. Additional treatment can be applied to a tissue region on the patient into which a drug (e.g., insulin) is injected, to expose the tissue region to various forms of energy or a substance to improve the drug's pharmacokinetic and/or pharmacodynamic profile.
摘要:
The present invention relates generally to systems, apparatuses, and methods for obtaining a fluid sample from a patient. In particular, the present invention relates to a various types of fluid access interfaces for enabling contact between a patient blood sample and blood parameter sensors for the measurement of physiological parameters and blood constituents.
摘要:
Embodiments of the present invention are directed to systems, apparatuses, devices and methods for improving, modifying and/or stabilizing pharmacokinetic and/or pharmacodynamic profile of a drug infused into the tissue by a catheter and absorbed into the blood or lymphatic system. In some embodiments, infusion sets provide fluid and electrical connection between a catheter assembly/treatment element and at least one of a fluid source and a second source.
摘要:
The present invention is directed towards apparatuses and methods for the automated measurement of blood analytes and blood parameters for bedside monitoring of patient blood chemistry. Particularly, the current invention discloses a programmable system that can automatically draw blood samples at a suitable programmable time frequency (or at predetermined timing), can automatically analyze the drawn blood samples and immediately measure and display blood parameters such as glucose levels, hematocrit levels, hemoglobin blood oxygen saturation, blood gases, lactate or any other blood parameter.
摘要:
The present invention is a programmable, automated device for the measurement and analysis of blood analytes and blood parameters. The device components are combined in a single apparatus and either programmed to initiate automatic, periodic blood sampling or initiate automatic blood sampling via operator input. The device operates automatically to draw blood samples at suitable, programmable frequencies to analyze the drawn blood samples and obtain the desired blood readings.
摘要:
Apparatus for assaying an analyte in a patient's body comprising: at least one sensor unit mountable to a region of the patient's skin comprising at least one light source that illuminates a tissue region below the skin with light that generates photoacoustic waves therein and at least one acoustic transducer that generates signals responsive to the photoacoustic waves; and a control unit configured to be mounted to a different part of the body and comprising a controller for controlling the at least one light source and at least one acoustic transducer and receiving the signals generated by the at least one acoustic transducer.
摘要:
Apparatus for assaying an analyte in blood in a blood vessel below a patient's skin comprising: at least one light source controllable to transmit light into tissue below the skin through at least one first region on the skin; at least one light detector that receives a portion of the transmitted light that reaches at least one second region on the skin after propagating through the blood vessel and generates signals responsive to the received light; and a controller; wherein the controller controls the at least one light source to transmit light at least one wavelength that interacts with blood and at least one wavelength that interacts with the analyte and uses the signals responsive to the light that interacts with the blood to determine a location for the blood vessel and the determined location and signals responsive to the light to assay the analyte.
摘要:
A system for monitoring a position of an instrument in a subject includes a light transmission medium configured to transmit light pulses to a desired region to produce an acoustic signal, at least one ultrasound sensor configured to receive the acoustic signal and to produce a transduced signal from the acoustic signal, and a processing unit connected to the at least one ultrasound sensor and configured to locate a source of the acoustic signal using the transduced signal.