| Edan Instruments, Inc. Patent applications |
| Patent application number | Title | Published |
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| 20120095299 | Patient Monitor Having Entertainment Functions and Control Method Thereof - The invention provides a patient monitor having entertainment functions and a control method thereof. If a user initiates the entertainment functions of the patient monitor having entertainment functions, a system thereof sends an entertainment signal to an entertainment signal processing unit, the entertainment signal is then processed to display an image on an entertainment specific display apparatus, and sound playing is achieved via an entertainment specific loudspeaker; the system sends a parameter signal to a parameter signal processing unit in real time, the parameter signal is then processed to display real-time measurement values and waveforms of parameters on a monitor specific display apparatus, and playing of various sounds is achieved via a monitor specific loudspeaker; an alarm processing unit detects, in real-time, whether the physiological characteristics of patient meet the alarm condition, and once the condition is met, alarm is triggered immediately; with the patient monitor of the invention, patients can enjoy some entertainment activities for mental relaxation while lying on the bed without having an impact on normal real-time monitor for patients. | 04-19-2012 |
| 20110054280 | Finger Type Pulse and Blood Oxygen Measuring Device - The invention discloses a finger type pulse and blood oxygen measuring device, including an upper shell suite and a lower shell suite that are installed with silica gel soft finger pad, and a semi-closed holding cavity shaped by the coordination of the silica gel soft finger pad that installed within the upper shell suite and lower shell suite; herein its feature it is that the foresaid silica gel soft finger pad that installed within the upper shell suite and lower shell suite has optical windows which are corresponding to each other, while the optical window and silica gel soft finger pad become integrated; and a removable power supply module is installed in the lower shell suite. The beneficial effects of the invention is that because of the adoption of the removable type power supply module which is able to load the battery, by the comparison with the current technology, it is easier to assemble and disassemble the battery, and it enforces the anti-damage function of the measuring device; the device also adopts the integrated technology for the mould of the transparent silica gel optical window and the silica gel soft finger pad, which makes the craft simpler, and enhances the consistency of the products, and also increases the comfort of the fingers for placement in measuring. | 03-03-2011 |
| 20110037514 | Method for the Elimination of Ringing of Power Line Interference Filter - The present invention discloses a method for the removal of power line interference (PLI) to the signal parts of which are abrupt. First, to the non-abrupt part of the original input signal, we pass it to the notch filter, and get the output as the system output. Then, to the abrupt part, we subtract previous output from the original input signal; and add a straight line, connecting the starting and end of previous output, to the result of the subtraction to get the input of the notch filter. After processing of the notch filter, we add previous output to current output of the notch filter; and subtract the straight line as before from the sum to get the output of this step. We repeat this processing several times. During the detection of electrocardiogram (ECG), 50/60 Hz power line interference conceals the subtle changes in the original ECG, which affects the diagnosis. When the linear time-invariant (LTI) notch filter is used to the suppression of PLI, it usually causes ringing after the QRS complex, which affects the measurement of the Ventricular Late Potential and so on. The present invention uses the starting and end points of the QRS complex to process the input and output signal of the notch filter, so it is able to suppress PLI as well as to avoid the generation of the ringing. | 02-17-2011 |
| 20110013671 | Replaceable Probe Holder Structure for Thermometer - The invention discloses a replaceable probe holder structure for thermometer, including a thermometer shell. Inside the thermometer shell installs a slot and an elastic positioning mechanism; inside the slot installs a probe holder; after the insertion of the probe holder in the slot, the probe holder will match with the elastic positioning mechanism and then fixed in the slot. By adopting the above structure, the probe holder structure of this invention requires fewer components, and convenient for installation; the adoption of the elastic positioning mechanism to fix the probe holder is more convenient to replace in practical use. | 01-20-2011 |
| 20100329305 | Induction Type of Electronic Thermometer Probe Motion Detection Device - The invention discloses an induction type of electronic thermometer probe motion detection device, including a probe and a probe holder; wherein the probe includes a cavity and a probe tip; Inside the probe tip has a heating mechanism, wherein the probe tip and the heating mechanism electrically connected with the host of the electronic thermometer by wires; Inside the cavity locates a magnetic inductive switch, wherein the magnetic inductive switch communicates with the host of electronic thermometer by wires; A magnetic signal source located in the position of the other side of the probe holder after the placement of the probe, where corresponds to the magnetic inductive switch, and then the magnetic signal source and the magnetic inductive switch composed to the probe motion detection device. When the probe put back to the probe holder, the magnetic inductive switch will induce the magnetic signal source in the probe holder, and the magnetic inductive switch is on the closed mode and communicates with the host of the electronic thermometer by wire, then turns off the pre-heating process; Likewise, when the probe leave the probe holder, the magnetic inductive switch is not able to induce the magnetic signal source, and the magnetic inductive switch is on the open mode and communicates with the host of the electronic thermometer by wire, then initiates the pre-heating process. | 12-30-2010 |
| 20100329303 | Method to Control the Work of Electronic Thermometer by Using the Position of Probe and the Apparatus Composed of - The invention discloses a method to control the work of electronic thermometer by using the position of probe. The probe incased in a disposable sheath, wherein the pre-heating mechanism in the probe and the control switch is connected with the host of the electronic thermometer by wires; and by using the axial reciprocating motion of the probe to trigger the control switch to initiate the electronic thermometer. When using the invention, we use the movement for the assembling of the sheath to initiate the hearting process and measurement, to ensure that the disposable sheath is assembled on the probe, and then execute the measurement, so as to eliminate the possibility of cross infection completely. The invention also exempts the requirement for the users to the return back of the probe into the cavity after use, and brings convenience for the users: Meanwhile, the equipment structure is simple, and the machinery assembles are few by comparison, which effectively decrease the production cost. | 12-30-2010 |
| 20100308907 | Type of High-Performance DC Amplification Device for Bioelectrical Signal Collection - This invention relates to a high-performance DC amplifying device for bioelectrical signal collection, including the sequentially linked input protective/filter circuit, input buffer circuit, instrumentation amplification circuit, RC low-pass filter circuit, analog-digital conversion and peripheral circuit and CPU, as described as below: the input protective/filter circuit collects the bioelectrical signal and sends such signal to the input buffer circuit and then allows it pass through the instrumentation amplification circuit, RC low-pass filter circuit and analog-digital conversion and peripheral circuit in order. For such device, CPU controls the operation of analog-digital conversion and peripheral circuit. This invention converts the impedance of bioelectrical signal firstly and then applies the common-mode signal rejection to the amplified signal, with the high-frequency noise filtered; such signal is treated for the secondary amplification by the single-ended-to-differential operational amplifier—the noise and common-mode rejection ratio and other indicators of such signal after analog-digital conversion reach a very high level and the baseline is very stable; the dynamic range of signal input is large and it is not saturated easily. With fewer parts needed, the reliability of such device is enhanced. | 12-09-2010 |
| 20100249611 | Respiratory Signal Processing Method - This Invention relates to a respiratory signal processing method, including the following steps: A. Obtain the respiratory physiological signals by means of a specific respiratory circuit, AD collects and obtains the respiratory digital signals and applies the data preprocessing to such signals; B. Convert frequency spectrum of the preprocessed respiratory signals and obtain the distribution of their frequency domain; C. Judge whether there is asphyxia in accordance with the properties of respiratory signal's physiological parameters; D. Introduce the physiological parameters of heart activities and analyze frequency spectrum distribution of respiratory signals and judge whether there is any interference from heart activities; E. Analyze the spectral energy envelop of respiratory waveform and find out the correct spectral peak, and then convert the frequency point corresponding to the spectral peak to the respiratory rate so as to obtain the value of current respiratory rate by integrating with the previous values of respiratory rate. The processing methods under this Invention can maximize the accuracy of results of respiratory rate and improve the stability of such result remarkably. | 09-30-2010 |
