Fingertip oximeter and a method for observing a measurement result thereon

• US 8,639,308 B2
• Filed: 03/01/2012
• Issued: 01/28/2014
• Est. Priority Date: 08/07/2006
• Status: Active Grant

• Current Assignee: Beijing Choice Electronic Technology Co., Ltd. (Tianjin Chase Sun Pharmaceutical Co., Ltd.)
• Original Assignee: Beijing Choice Electronic Technology Co., Ltd. (Tianjin Chase Sun Pharmaceutical Co., Ltd.)
• Inventors: Xu, Feng, Liu, Shuhai
• Primary Examiner(s): WINAKUR, ERIC FRANK
• Application Number:
  US13/409,773
• Publication Number:
  US 20130035572A1
• Time in Patent Office: 698 Days
• Field of Search: 600/310, 600/322, 600/323, 600/300, 345/418, 345/168
• US Class Current: 600/323
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6838 Clamps or clips
• CPC Class Codes: A61B 5/72 Signal processing specially adapted for physiological signals or for diagnostic purposes character recognition, recognising digital ink, document-oriented image-based pattern recognition G06V30/00; recognition or understanding of postal images G06V30/424
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/3265 Power saving in display device
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

There is provided a fingertip oximeter that has a plurality of display modes which are presented sequentially in a circulating way, allowing users to easily observe a measurement result from any of surrounding directions. The present invention makes users to be able to observe a measurement result of the fingertip oximeter from any of surrounding directions, without the need of bending his/her finger. Thus, any partial occlusion of the arterial blood capillary can be avoided, so that strength of the pulse will not decrease, and strength of the signal will not be affected. As a result, the precision of the measurement is improved.

Claims

1. A method for updating a display mode of a measurement result of a fingertip oximeter on a display while the fingertip oximeter is in use, the method comprising:

detecting a user instruction for updating a current display mode of the fingertip oximeter when the user presses down a button, said button further controlling a power source of the fingertip oximeter, said current display mode illustrating the measurement result, said measurement result including measurement parameters, said measurement parameters being displayed in an upright standing way, a portrait right laying way, a landscape upside-down standing way, or a portrait left laying way;

generating, by a central processor, a new display mode to display the measurement result according to the instruction, the new display mode displaying the measurement parameters in a different way than the current display mode; and

displaying, on the display, the new display mode in place of the current display mode.

2. The method of claim 1, further comprising:

detecting that the button is pressed down;

determining whether the fingertip oximeter is powered on;

if the fingertip oximeter is powered off, turning on the power source to provide power to the fingertip oximeter in response to the press-down of the button; and

if the fingertip oximeter is powered on, generating an interrupt signal for updating the current display mode in response to the press-down of the button.

3. The method of claim 2, wherein turning on the power source further includes letting the central processor take over control of the power source after the button is released.

4. A fingertip oximeter comprising:

a power source unit for supplying power to the fingertip oximeter;

a button for receiving a user instruction to update a current display mode, the button further controlling the power source; and

a central processor for updating the current display mode while the fingertip oximeter is in use, said current display mode illustrating a measurement result of the fingertip oximeter, said measurement result including measurement parameters, or measurement parameters and pulse columns, said measurement parameters being displayed in an upright standing way, a portrait right laying way, a landscape upside-down standing way, or a portrait left laying way, wherein said button also controls the power source unit of the fingertip oximeter, the central processor being configured to;

detect the user instruction when the user presses down the button; and

generate a new display mode to display the measurement result according to the instruction, the new display mode displaying at least one of the heading or the measurement parameters in a different way than the current display mode, and

a display for displaying the new display mode in place of the current display mode.

5. The fingertip oximeter of claim 4, wherein the central processor is further configured to:

detect that the button is pressed down;

determine whether the fingertip oximeter is powered on;

if the fingertip oximeter is powered off, turn on the power source to provide power to the fingertip oximeter in response to the press-down of the button; and

if the fingertip oximeter is powered on, generate an interrupt signal for updating the current display mode in response to the press-down of the button.

6. The fingertip oximeter of claim 5, wherein the central processor is further configured to take over control of the power source after the button is released.