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EP-3769678-B1 - MULTI-COMPATIBILITY PULSE BLOOD OXYGEN SENSOR

EP3769678B1EP 3769678 B1EP3769678 B1EP 3769678B1EP-3769678-B1

Inventors

  • WANG, Ganbing
  • XU, CHUNHUI

Dates

Publication Date
20260506
Application Date
20190321

Claims (4)

  1. A multi-compatible pulse oximetry sensor (50), comprising: a detection end (501); an output end (503); and a cable (505) configured to connect the detection end with the output end; wherein the detection end is provided with a light emitter and a photodetector; the light emitter is composed of a plurality of light emitting diodes and a plurality of connection ports; the light emitting diodes consist of at least two red light emitting diodes varying in peak wavelengths and at least one infrared light emitting diode or consist of at least one red light emitting diode and at least two infrared light emitting diodes varying in peak wavelengths; and each connection port is connected to an output port of the output end through a conductive wire in the cable; characterized in that the light emitting diodes are connected in series at the detection end; wherein the light emitter is composed of two red light emitting diodes and two infrared light emitting diodes; the two red light emitting diodes are connected in series to form a first series circuit; the two infrared light emitting diodes are connected in series to form a second series circuit; the first series circuit is connected with the second series circuit in series; the light emitter is provided with five connection ports; the cable has five conductive wires; the output end has five output ports; and the five connection ports of the light emitter are electrically connected with the five output ports through the five conductive wires, respectively; or wherein the light emitter is composed of one red light emitting diode and two infrared light emitting diodes; the two infrared light emitting diodes are connected in series to form a series circuit; the one red light emitting diode is connected in series with the series circuit; the light emitter is provided with four connection ports; the cable has four conductive wires; the output end has four output ports; and the four connection ports of the light emitter are electrically connected with the four output ports through the four conductive wires, respectively; or wherein the light emitter is composed of two red light emitting diodes and one infrared light emitting diode; the two red light emitting diodes are connected in series to form a series circuit; the one infrared light emitting diode is connected in series with the series circuit; the light emitter is provided with four connection ports; the cable has four conductive wires; the output end has four output ports; and the four connection ports of the light emitter are electrically connected with the four output ports through the four conductive wires, respectively.
  2. The multi-compatible pulse oximetry sensor according to claim 1, characterized in that the light emitting diodes are packaged together in one chip, and the chip is provided at the detection end; or the light emitting diodes are individually packaged in a plurality of chips, and the chips are all provided at the detection end.
  3. A multi-compatible pulse oximetry sensor combination (100), comprising: the multi-compatible pulse oximetry sensor according to any one of claims 1-2; and an adapter cable (70) for connecting the multi-compatible pulse oximetry sensor with a monitor, wherein the adapter cable comprises a first adapter end configured to connect the multi-compatible pulse oximetry sensor; a second adapter end configured to connect the monitor; and an adapter wire for connecting the first adapter end with the second adapter end.
  4. A multi-compatible pulse oximetry sensor combination (100a), comprising: the multi-compatible pulse oximetry sensor according to any one of claims 1-2; an adapter cable; and an adapter (90) for electrically connecting the multi-compatible pulse oximetry sensor with the adapter cable; wherein the adapter comprises a first adapter end configured to connect the multi-compatible pulse oximetry sensor; a second adapter end configured to connect the adapter cable; and a connector for connecting the first adapter end with the second adapter end.

Description

TECHNICAL FIELD The present application relates to pulse oximetry sensors, and more particularly to a pulse oximetry sensor compatible with multiple monitors. BACKGROUND The monitor manufacturers vary in the oximetry technique, which renders their corresponding pulse oximetry sensors technically different from each other, so that a sensor produced by one manufacturer generally cannot be compatible with a monitor produced by another manufacturer. However, actually, the monitors used in different departments are often produced by different manufacturers. For example, there may be four kinds of monitors used in the four clinical environments that a patient may undergo in one treatment course, that is, monitor A is used in the operating room; monitor B is used in the postanesthesia care unit; monitor C is used in the intensive care unit (ICU); and monitor D is used in the general ward, which indicates that four kinds of pulse oximetry sensors are required to be prepared to satisfy the clinical requirements during the same treatment course. Considering the above, since different monitors generally have different ports, it is necessary to use four kinds of pulse oximetry sensors respectively compatible with the four different monitors in the same treatment course, which makes for an increase not only in the clinical workload and operation complexity, but also in the treatment cost. Publication WO2011086520A1 discloses a multi-system compatible pulse oximetry sensor including a light emitting unit 3. There are three LEDs being connected in parallel in the initial LED circuit. However, there are only three leads D circuit and LED circuit variation can create only two_configurations. SUMMARY An object of this application is to provide a pulse oximetry sensor compatible with various monitors, simplifying the operation and lowering the cost. The invention is as defined in the appended set of claims. Hereinafter, any contents that do not correspond to the scope of the claims are only for illustrative purpose, or to highlight the effect of a particular aspect or feature. Compared to the prior art, there are the following beneficial effects. A combination of the multi-compatible pulse oximetry sensor and an adapter or an adapter cable is employed, and at least three light emitting diodes including red light emitting diodes and infrared light emitting diodes are connected in series at the detection end of the pulse oximetry sensor. Moreover, the adapter or the adapter cable can be customized according to the target monitor. Therefore, the pulse oximetry sensor can be compatible with multiple monitors, simplifying the operation and lowering the cost. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram schematically depicting a multi-compatible pulse oximetry sensor.Fig. 2 is a block diagram schematically depicting a multi-compatible pulse oximetry sensor combination.Fig. 3 schematically illustrates a circuit of a light emitter in the multi-compatible pulse oximetry sensor.Fig. 4 is a front view of the circuit shown in Fig. 3 after packaged.Fig. 5 is a rear view of the circuit shown in Fig. 3 after packaged.Fig. 6 schematically illustrates a structure of the multi-compatible pulse oximetry sensor.Fig. 7 schematically illustrates a structure of an adapter cable.Fig. 8 schematically illustrates another structure of an adapter cable.Fig. 9 schematically illustrates another structure of an adapter cable.Fig. 10 is a block diagram schematically depicting another multi-compatible pulse oximetry sensor combination.Fig. 11 schematically shows a structure of an adapter. In the drawings, 10-patient; 30-monitor; 50-multi-compatible pulse oximetry sensor; 501-detection end; 5015-light emitter; 503-output end; 505-cable; 70, 70a, 70b, 70c-adapter cable; 701-first end for connecting the sensor; 703-second end for connecting the monitor; 705, 705a, 705b, 705c-adapter wire; 80-adapter cable; 90-adapter; 901-first adapter end; 903-second adapter end; 905-connector; and 100, 100a-multi-compatible pulse oximetry sensor combination. DETAILED DESCRIPTION OF EMBODIMENTS The invention will be illustrated below in detail with reference to the accompanying drawings. Fig. 1 is a block diagram schematically depicting a multi-compatible pulse oximetry sensor. Fig. 2 is a block diagram schematically depicting a multi-compatible pulse oximetry sensor combination. Fig. 3 schematically illustrates a circuit of a light emitter in the multi-compatible pulse oximetry sensor. In an embodiment, this application provides a multi-compatible pulse oximetry sensor combination 100, which is connected to a monitor 30 to obtain the blood oxygen saturation of a patient 10 by pulse oximetry. The multi-compatible pulse oximetry sensor combination 100 is composed of a multi-compatible pulse oximetry sensor 50 and an adapter cable 70 connected to the multi-compatible pulse oximetry sensor 50. The multi-compatible pulse oximetry sensor 50 of the invention is compat