公开(公告)号：AU2001251654B2

公开(公告)日：2005-03-03

申请号：AU2001251654

申请日：2001-04-16

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： PORGES CHARLES E ,  FEIN MICHAEL E ,  MANNHEIMER PAUL D

IPC: G01N21/27 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61B005/00

Abstract: An oximeter system comprising an oximeter sensor in communication with an oximeter and a light detector signal. The oximeter sensor comprises a light emitter for directing light at a patient; a light detector mounted to receive light from the patient; and a memory storing a plurality of values of oxygen saturation or signal ratiometric values used to determine oxygen saturation. These values are dependent on a mean wavelength of the light emitter. The oximeter is programmed to determine oxygen saturation from the light detector signal by fitting the oxygen saturation to a curve defined by the values stored in the memory.

公开(公告)号：AU7720996A

公开(公告)日：1997-06-27

申请号：AU7720996

申请日：1996-11-13

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： GRONVALL DANIEL

IPC: A61B5/145 ,  A61B5/024 ,  A61B5/1455

Abstract: A reusable accessory for a sensor (such as a pulse oximeter or a plethysmograph) that allows close conformance between the sensor heads and the patient tissue to be measured. The accessory thus provides both a key advantage of adherent sensors (i.e. close tissue-sensor conformance) and a key advantage of rigid structure sensors (reusability). The accessory provides a structure for mounting the sensor heads, whereby the sensor heads can pivot about their respective points of attachment to the mounting structure within first and second voids, respectively, thereby allowing the sensors to closely conform to the patient tissue. In one embodiment, the mounting structure includes a spring containing two coils, and two frames surrounding the voids and connected to the coils, each frame having an end shaped to fit a portion of a sensor head and onto which a sensor head is mounted. Another aspect of the present invention, concerns the use of flexible sleeves to cover the sensor heads when mounted on a reusable accessory. The sleeves can be replaced or cleaned between patient applications, thereby reducing the risk of cross contamination between patients, and reduce the amount of shunted light. Yet another aspect of the present invention involves sensory accessories providing light shields that reduce shunting for non-flat site applications and yet do not interfere with sensor-tissue conformance in flat site applications.

公开(公告)号：AU7594896A

公开(公告)日：1997-04-17

申请号：AU7594896

申请日：1996-09-27

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： FRYE MARK R ,  GRENAWAY JOHN R ,  DAVIS RICHARD A ,  LEITHAUSER DOUGLAS R

IPC: A61M16/00 ,  A61M16/06 ,  A61M16/20

Abstract: PCT No. PCT/US96/15549 Sec. 371 Date Apr. 28, 1997 Sec. 102(e) Date Apr. 28, 1997 PCT Filed Sep. 27, 1996 PCT Pub. No. WO97/11734 PCT Pub. Date Apr. 3, 1997An apparatus is provided for controlling discharge of oxygen from an oxygen supply source to a patient. The apparatus includes an oxygen supply inlet, a pressure regulator coupled to the oxygen supply inlet and configured to reduce pressure of oxygen received from the oxygen supply inlet to a selected magnitude, a flow controller coupled to the pressure regulator and configured to meter oxygen received from the pressure regulator at a selected flow rate, and an oxygen distribution assembly including a pneumatic demand oxygen valve and a conduit conducting oxygen discharged from the flow controller through the pressure regulator to the pneumatic demand oxygen valve for delivery to a patient. The flow controller includes a chamber and a rotary valve for splitting oxygen discharged from the chamber into a first stream in an oxygen supply passageway for use by a patient and a second stream in a diaphragm supply passageway for controlling operation of pneumatic demand oxygen valve.

公开(公告)号：AU1211695A

公开(公告)日：1995-07-03

申请号：AU1211695

申请日：1994-11-22

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： FEIN MICHAEL E ,  JENKINS DAVID C ,  BERNSTEIN MICHAEL J ,  VENKATACHALAM K L ,  MERCHANT ADNAN I ,  BOWDEN CHARLES H

IPC: G08C15/12 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455

公开(公告)号：AU7845794A

公开(公告)日：1995-05-04

申请号：AU7845794

申请日：1994-09-28

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： BAKER CLARK R JR

IPC: A61B5/145 ,  A61B5/00 ,  A61B5/1455 ,  A61B5/1464

Abstract: The present invention provides an improved method and apparatus for more accurately calculating and measuring vital information such as oxygen saturation and pulse rate when an ECG signal is not available. Instead of using an ECG R-wave as a trigger to overlay optical pulses, a virtual trigger is generated based on the heart rate and used to overlay optical pulse data. The optical information from a number of periods is added together, with the beginning of each period being determined by the issuance of the virtual trigger. In this way, the maximum and minimum of the optical signal should be lined up with each other in each period and added together to give a cumulative maximum and minimum. This enables precise identification of the maximum and minimum of the signal, and thus allows calculation of the oxygen saturation at that point.

公开(公告)号：AU6441194A

公开(公告)日：1994-10-24

申请号：AU6441194

申请日：1994-03-21

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： SWEDLOW DAVID B ,  POTRATZ ROBERT S

IPC: G01N21/35 ,  A61B5/00 ,  A61B5/11 ,  A61B5/145 ,  A61B5/1455

Abstract: A pulse oximeter which modifies the alarm condition when motion is detected. Basically, if the lack of a pulse is determined to be as a result of motion artifact, the generation of an alarm is postponed. In addition, the display indicates that motion is present and that the last reading is questionable due to the presence of motion. The invention also determines if motion artifact is present from the pulse oximeter detector signal itself. The ratio of the positive and negative peaks of the derivative of the pulse signal are compared to a motion/blood pulse threshold.

公开(公告)号：AU5163993A

公开(公告)日：1994-05-24

申请号：AU5163993

申请日：1993-09-24

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： RICHARDSON CHARLES A ,  BERNSTEIN MICHAEL ,  OKIKAWA JERRY K ,  BENNETT TERRENCE R

IPC: A61B5/145 ,  A61B5/00 ,  A61B5/024 ,  A61B5/1455

公开(公告)号：AU2006259458A1

公开(公告)日：2006-12-28

申请号：AU2006259458

申请日：2006-06-13

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： WOODARD BRIAN ,  HOUGHTON CHRIS ,  LEE NGEE ,  KUMAR SHIV ,  SUN BENJAMIN K ,  GEISELHART EDWARD M

IPC: A61M16/08 ,  F16L27/047

Abstract: A system for adjusting a gas delivery mask is provided. The system may include a first housing portion, a first rim flexibly coupled to the first housing portion by a flexible member, a second housing portion coupled to the first housing portion, a second rim associated with the second housing portion, and a ball rotatably disposed between the first and second rims and having a gas passageway extending therethrough. The ball may be maintained in contact with both the first and second rims by a resiliency of the flexible member.

公开(公告)号：AU2005221673A1

公开(公告)日：2005-09-22

申请号：AU2005221673

申请日：2005-03-08

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： DEBRECZENY MARTIN ,  BAKER CLARK R JR

IPC: A61B5/00 ,  A61B5/024

Abstract: A method and an apparatus for measuring a physiological parameter, functioning based on obtaining a first signal derived from electromagnetic energy transmitted through a tissue portion at a first wavelength, the first signal including a signal portion corresponding with motion-related events and a signal portion corresponding with arterial pulsation events, where at the first wavelength water is a dominant absorber of electromagnetic energy in the tissue portion; obtaining a second signal derived from electromagnetic energy transmitted through a tissue portion at a second wavelength, the second signal including a signal portion corresponding with motion-related events and a signal portion corresponding with arterial pulsation events, where at the second wavelength hemoglobin is a dominant absorber of electromagnetic energy in the tissue portion; and combining the first signal and the second signal to generate a combined plethysmograph signal, such that the combined signal has a signal portion corresponding with motion-related events that is smaller than that present in the first signal or the second signal.

公开(公告)号：AU2005221653A1

公开(公告)日：2005-09-22

申请号：AU2005221653

申请日：2005-03-07

Applicant: NELLCOR PURITAN BENNETT INCORPORATED

Inventor： BAKER CLARK R JR

IPC: A61B5/00

Abstract: A method and device for detecting the presence of mixed venous and arterial blood pulsation in tissue, including receiving first and second electromagnetic radiation signals from a blood perfused tissue portion corresponding to infrared and red wavelengths of light, obtaining a measure of a phase difference between the first and second electromagnetic radiation signals, comparing the measure with a threshold value to form a comparison, and detecting the presence or absence of venous pulsation using the comparison.