阅读说明：本技术 肺炎筛查仪 (Pneumonia screening instrument ) 是由 A·艾尔-阿里 K·W·印多尔 于 2018-03-09 设计创作，主要内容包括：一种用于获得包括医疗患者的体积描记的生理信息和检测肺炎病症的设备。便携式肺炎筛查设备可包括一个或多个传感器,其配置成获得生理信息。肺炎筛查仪可以提供用选择和接口以帮助选择患者的年龄组的方法。筛查仪可以从一组程序设定的血氧饱和度、呼吸、脉搏率或其他生理参数的阈值水平匹配被选定的年龄组,以辅助肺炎诊断。肺炎筛查仪可以提供一种或多种视觉和/或音频刺激,诸如动画、声音或音乐。视觉和/或音频刺激可以指示初始化、进行中的诊断、完成、或其他事件、或事件的进展。在一些实施方案中,视觉和/或音频刺激可用于抚慰或吸引患者,以使得在筛查过程中患者的躁动被减缓。(An apparatus for obtaining physiological information including plethysmography of a medical patient and detecting a pneumonia condition. The portable pneumonia screening apparatus may include one or more sensors configured to obtain physiological information. The pneumonia screening apparatus may provide a method of using a selection and interface to assist in selecting an age group for a patient. The screener may match the selected age group from a set of programmed threshold levels of blood oxygen saturation, respiration, pulse rate, or other physiological parameters to aid in pneumonia diagnosis. The pneumonia screener may provide one or more visual and/or audio stimuli, such as animation, sound, or music. The visual and/or audio stimuli may indicate an initialization, an ongoing diagnosis, a completion, or other event, or a progression of an event. In some embodiments, visual and/or audio stimuli can be used to soothe or attract the patient such that agitation of the patient is reduced during the screening process.)

1. An electronic system for determining the presence of a pneumonia condition, the electronic system comprising:

at least one optical sensor configured to be connected to a patient and to measure a physiological parameter indicative of a respiratory rate of the patient;

a user interface configured to receive age information related to a patient;

a memory configured to store correlation information between a plurality of patient ages and a normal breathing frequency for each respective patient age; and

a hardware processor configured to:

determining a breathing frequency of the patient from the measured physiological parameter;

receiving at least one patient information indicative of a patient's age;

accessing a memory and obtaining a normal breathing frequency for comparison to the determined patient breathing frequency based at least in part on the patient age;

comparing the determined patient breathing frequency to the normal breathing frequency;

determining a likelihood of the patient having a pneumonia condition based on the results of the comparison; and

a diagnostic report is generated that includes the likelihood of the pneumonia condition.

2. The electronic system of claim 1, wherein the normal breathing frequency is represented by a threshold breathing frequency.

3. The electronic system of claim 2, wherein when the determined breathing frequency of the patient is above the threshold breathing frequency, the system diagnoses the patient as a pneumonia condition.

4. The electronic system of claim 1, wherein at least some of the plurality of patient ages are represented by an age group having a minimum age and a maximum age.

5. The electronic system of claim 4, wherein the minimum age or maximum age is expressed in months.

6. The electronic system of claim 4, wherein each age group is associated with two or more threshold respiratory rates, and each of the two or more threshold respiratory rates is associated with a severity of a pneumonia condition.

7. An electronic system according to any of claims 1-6, further comprising a display and/or a speaker.

8. The electronic system of claim 7, wherein the display is a touch screen that includes the display and the user interface.

9. An electronic system according to claim 7, wherein the speakers and/or display provide media content including still images, animations, sounds and/or music for visual and/or audio stimulation.

10. The electronic system of claim 9, wherein the visual and/or audio stimuli reduce patient agitation such that the patient's breathing rate is accurate.

11. The electronic system of any of claims 9 or 10, wherein the visual stimulus occupies a first portion of available space on the display for presentation of visual information.

12. The electronic system of claim 11, wherein the display presents one or more physiological data related to the likelihood of a pneumonia condition on a second portion of available space on the display for presentation of visual information.

13. The electronic system of claim 12, wherein the hardware processor updates the one or more physiological data in real-time.

14. The electronic system of any of claims 9-13, wherein the media content includes instructions to a user relating to connection with at least one optical sensor, use of the system, provision of patient age, initiation of pneumonia diagnosis, and/or interpretation of diagnosis results.

15. The electronic system of claim 14, wherein the instruction is a voice prompt.

16. An electronic system as in any of claims 9-15, wherein the connection with the at least one optical sensor on the patient automatically advances the system to the next media content.

17. The electronic system of any of claims 7-16, wherein the diagnostic report comprises a sound.

18. The electronic system of any of claims 9-17, wherein the patient interacts with the animation via the user interface, and the system changes the provided media content in response to patient interaction.

19. The electronic system of any of claims 1-18, further comprising a communication module configured to receive updates or additions to available media content.

20. The electronic system of any of claims 1-19, wherein the at least one optical sensor measures a physiological parameter indicative of a patient's pulse rate, temperature, or blood oxygen saturation.

21. The electronic system of any of claims 1-20, wherein the hardware processor is configured to receive a pulse rate, a temperature, or a blood oxygen saturation from the at least one optical sensor, and adjust the determination of the likelihood that the patient has the pneumonia condition based at least in part on the pulse rate, the temperature, or the blood oxygen saturation.

22. The electronic system of any of claims 1-21, wherein the hardware processor is configured to receive a pulse rate, a temperature, or a blood oxygen saturation from the at least one optical sensor and adjust the threshold respiratory rate.

23. An electronic method for providing care treatment, the method comprising:

attaching at least one optical sensor to a patient;

measuring a physiological parameter indicative of a respiratory rate of the patient;

determining a breathing frequency of the patient from the measured physiological parameter;

receiving age information related to a patient via a user interface;

accessing a normal breathing frequency compared to the determined breathing frequency of the patient based at least in part on the age information of the patient;

comparing said determined patient breathing rate to said normal breathing rate;

determining a likelihood of the patient having a pneumonia condition based on the results of the comparison; and

a diagnostic report is generated that includes the likelihood of the pneumonia condition.

24. The electronic method according to claim 23, further comprising providing media content including still images, animation, sound and/or music for visual and/or audio stimulation via a display and/or a speaker, wherein the visual and/or audio stimulation reduces patient agitation.

25. An electronic system for determining the presence of a pneumonia condition, the electronic system comprising:

at least one optical sensor configured to be connected to a patient and to measure a physiological parameter of the patient;

a hardware processor configured to determine a physiological parameter of the patient from the measured physiological parameter; and

a display configured to present visual stimuli comprising static images or animations, wherein the visual stimuli is configured to draw the attention of the patient and to display patient physiological information obtained from the at least one optical sensor.

26. The electronic system of claim 25, further comprising a user interface configured to receive age information associated with a patient.

27. The electronic system of any one of claims 25-26, further comprising a memory configured to store association information between a plurality of patient ages and normal physiological parameters for each respective patient age.

28. The electronic system of any of claims 25-27, wherein the hardware processor is configured to receive at least one patient information indicative of a patient's age.

29. The electronic system of any of claims 25-28, wherein the hardware processor is configured to access the memory and obtain a normal physiological parameter for comparison to the determined patient physiological parameter based at least in part on the patient age.

30. The electronic system of any of claims 25-30, wherein the hardware processor is configured to compare the determined patient physiological parameter to the normal physiological parameter.

31. The electronic system of any of claims 25-31, wherein the hardware processor is configured to determine a likelihood that the patient has a pneumonia condition based on the comparison results.

32. The electronic system of any of claims 25-32, wherein the hardware processor is configured to generate a diagnostic report comprising a likelihood of the pneumonia condition.

33. The electronic system of any of claims 25-33, wherein the visual stimulus occupies a first portion of available space on the display for presentation of visual information.

34. The electronic system of any of claims 25-34, wherein the display presents one or more physiological data related to a likelihood of the pneumonia condition on a second portion of available space on the display for presentation of visual information.

35. The electronic system of claims 25-35, wherein the hardware processor is configured to update the one or more physiological data in real-time.

36. The electronic system of any of claims 25-29, wherein the physiological parameter is respiratory rate.

Technical Field

In general, the present disclosure relates to methods and apparatus for non-invasively and automatically diagnosing pneumonia.

Background

Hospitals, nursing homes, and other patient care facilities typically include patient monitoring equipment located on one or more bedside in the facility. Patient monitoring devices typically include sensors, processing devices, and displays for obtaining and analyzing physiological parameters of a medical patient, such as blood oxygen saturation levels, respiration rates, pulse rates, and the like. Clinicians, including doctors, nurses, and other medical personnel, use the physiological parameters obtained from the patient monitor to diagnose disease and prescribe a treatment. The clinician also uses the physiological parameters to monitor the patient during various clinical conditions to determine whether to increase the level of medical care given to the patient.

An example of a non-invasive patient monitoring device includes a pulse oximeter. Pulse oximetry is a widely accepted non-invasive procedure for measuring the blood oxygen saturation of arterial blood, which is a marker of oxygen supply to the body. Pulse oximeters typically include one or more light sources that transmit or reflect light radiation into or through a portion of the body, such as a finger or toe (such as a finger), hand, foot, nose, earlobe, or forehead. After being attenuated by the tissue and fluid of the portion of the body, one or more photodetection devices detect the attenuated light and output one or more detector signals in response to the detected attenuated light. In various embodiments, the oximeter may calculate oxygen saturation (SpO)₂) Pulse rate, plethysmograph waveform, Perfusion Index (PI), pulse volume variability index (PVI), methemoglobin (MetHb), carboxyhemoglobin (CoHb), total hemoglobin (tHb), glucose, and/or others, and the oximeter may display the foregoing parameters individually, in groups, trending, as a combination, or as an overall health or other index on one or more monitors. Examples of such oximeters, which can utilize the optical sensors described herein, are described in U.S. application No. 13/762,270 entitled "wireless patient monitoring device" filed on 7.2.2013, U.S. application No. 14/834,169 entitled "wireless patient monitoring device" filed on 24.8.2015, and U.S. application No. 14/511,974 entitled "patient position detection system" filed on 10.10.2014, the disclosures of which are incorporated herein by reference in their entireties. Other examples of such oximeters are described in U.S. application No.09/323176 entitled "stereoscopic pulse oximeter," U.S. application No.09/323176, now 6,334,065, filed on 27.5.1999, the disclosure of which is incorporated herein by reference in its entirety.

In non-invasive devices and methods, the sensor is typically adapted to position a portion of the body in proximity to the light source and the light detector. In one example, a non-invasive sensor typically includes a clothes-pin shaped finger grip that includes a contoured bed that generally conforms to the shape of a finger. Examples of such non-invasive sensors are described in U.S. application No. 12/829352 entitled "multiple data stream acquisition system for non-invasive measurement of blood constituents," filed on 1/7/2010, now U.S. patent No. 9,277,880, the disclosure of which is incorporated herein by reference in its entirety. In another example, the non-invasive sensor can include one or more sensing components, such as a light source and/or photodetector on tape, for example, as described in U.S. application No. 13/041,803 entitled "reprocessing of physiological sensors," filed 5/7/2011, now U.S. patent No. 8,584,345, the disclosure of which is incorporated herein by reference in its entirety.

The patient monitoring device is also able to communicate with an acoustic sensor comprising an acoustic transducer, for example a piezoelectric element. The acoustic sensor is capable of detecting respiratory and other biological sounds of the patient and providing signals reflective of these sounds to the patient monitor. Examples of such acoustic sensors, which can perform the sensing functions of any of the sounds described herein, are described in U.S. application No. 12/643,939 entitled "acoustic sensor assembly" filed on 12/21 2009 and U.S. application No. 61/313,645 entitled "acoustic respiration monitoring sensor with multiple sensing elements" filed on 3/12 2010, the disclosures of which are incorporated herein by reference in their entirety.

Disclosure of Invention

The present disclosure describes methods and apparatus for diagnosing pneumonia using physiological information of a patient. In developing countries, the opportunity to obtain adequate healthcare is often limited. Local care providers typically receive at best limited training. The present disclosure provides a low cost, accurate and very user friendly system for detecting pneumonia. The present disclosure has particular application to pediatric patients.

The present disclosure provides a portable pneumonia screening apparatus that includes one or more sensors configured to obtain physiological information. The one or more sensors can include one or more optical sensors.

The pneumonia screener can provide an interface to assist in selecting an age group for a patient. The pneumonia screener may provide age groups in months or years, including one or more months, such as 0 to 2 months. The screening instrument may match the selected age group with programmed threshold levels from a set of blood oxygen saturation, respiratory, pulse rate, or other physiological parameters to aid in the diagnosis of pneumonia.

The pneumonia screening apparatus can provide one or more instructions to a clinician, user, operator, or patient. These instructions may be displayed on the monitor of the screening apparatus as clear instructions or as a graphical representation. Additionally or alternatively, the instructions can be audio prompts, such as voice prompts, through a speaker. The screening instrument may require user interaction to proceed to the next instruction. An unsuccessful compliant instruction can selectively re-prompt the instruction, re-initialize the program associated with the instruction, or change the manner in which the instruction is transmitted. These instructions may be static or dynamic.

The pneumonia screening apparatus can provide one or more audio stimuli (e.g., sound and/or music). In addition to the instructional voice prompts, sounds and music may indicate the initialization of the screening instrument and/or the input of user input. The screening instrument may also use sound and music to indicate initialization, ongoing diagnosis, completion, or other events, or progress of an event. Sound or music may be combined with visual stimuli such as animation.

The pneumonia screener can provide a diagnostic indicator indicating detection of pneumonia. The screening instrument can provide additional diagnostic information related to the pneumonia and indicate the severity of the pneumonia.

For the purposes of summarizing the disclosure, certain aspects, advantages and novel features of the invention have been described herein. It is to be understood that not necessarily all such advantages may be achieved in accordance with any particular embodiment of the invention disclosed herein. Thus, the invention disclosed herein can be embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other advantages as may be taught or suggested herein.

Drawings

Various embodiments will be described below with reference to the accompanying drawings. These embodiments are illustrated and described by way of example only and are not intended to limit the scope of the present disclosure. In the drawings, like elements have like reference numerals.

Figure 1A illustrates a pneumonia screening apparatus.

FIG. 1B illustrates an oximetry sensor that may be connected to the pneumonia screening instrument of FIG. 1A.

Fig. 2 illustrates an interface showing an age group selection screen.

FIG. 3 illustrates an interface showing an instruction screen.

FIG. 4 illustrates an interface showing a dynamic indication of a diagnosis being performed.

Fig. 5 illustrates a system block diagram of a pneumonia diagnostic system.

Detailed Description

The present disclosure describes methods and apparatus for diagnosing pneumonia from physiological information of a patient. Pneumonia can occur at any age, but is more common in young children. Pneumonia, for example, accounts for 13% of all infections in infants under the age of 2. At least to say, high morbidity is of great concern because pneumonia accounts for 16% of the total deaths in children under the age of 5 years, causing 920,136 deaths in 2015.

The World Health Organization (WHO) program to control pneumonia uses clinical symptoms to identify pneumonia and assess its severity and whether hospitalization is required. However, the early identification of pneumonia in young children poses particular challenges for both assessment and management, as the clinical manifestations of pneumonia are often similar to sepsis, meningitis, or urinary tract infections. To address the difficulties of assessment, the WHO pointed out examining the respiratory rate of children during physical examination as an important first step in diagnosing pneumonia.

In particular, the WHO has determined respiratory rate thresholds that point to signs of pneumonia according to age group, such as 60 breaths per minute or greater in children under 2 months, 50 breaths per minute or greater in children between 2 and 11 months, and 40 breaths per minute or greater for children between 12 and 59 months. In the presence of respiratory symptoms, the assessment of blood oxygen saturation by a pulse oximeter to supplement the respiratory rate can be used for more accurate diagnosis. The respiratory readings, along with blood oxygen saturation, pulse rate, temperature, and other physiological parameters, can provide an efficient detection analysis.

However, several factors make it difficult to accurately and reliably detect the respiratory rate and other physiological parameters of a child. For example, children often have different psychological states than normal adult patients because they are easily distracted or agitated. Restless children tend to move around, causing noise on the measurement signal, which can degrade the quality of the measurement and lead to inaccurate results.

The present disclosure describes a pneumonia screening apparatus that provides methods and assemblies that help children rest while the screening apparatus measures physiological parameters. The screening instrument may utilize visual and/or auditory stimuli on the display and/or use a speaker to sooth or attract the child, focus the child on the screen and reduce the child's agitation, respectively. The visual stimulus may be the display of a still picture, an animation, or both. The animation may be played or repeated as the screener obtains and/or processes the raw data and presents a diagnosis thereof. The auditory stimulus may be music or some sound effect associated with a picture or animation. Detailed aspects of the invention are described further below.

Figure 1A illustrates an embodiment of a pneumonia screening apparatus 100. The illustrated pneumonia screening apparatus 100 includes a sensor interface 102 for attaching one or more sensors, a display 104, a speaker (shown in fig. 3), various buttons 106, 108, and 110, and a device body 112. The buttons may include a back button 106, a menu button 108, and a system settings button 110. The display 104 may be a touch screen display, thereby reducing the number of physical buttons and greatly simplifying the understanding and operation of the screening instrument. For example, the touch screen display 104 recognizes the pneumonia screening machine for the user as a pneumonia screening machine and requests user interaction to continue to indicate step by step. The screening instrument may use a familiar smartphone layout to provide a more intuitive user interface. The screener may also maintain its familiar smartphone look and feel by placing the familiar and most commonly used functions (e.g., back function 106, menu function, and system setup function 110) as individually labeled buttons.

The back button 106 may provide quick access to cancel the current operation and return to the previous screen if accidental touching of the touch screen display 104 would result in an undesired input. The menu button 108 may provide quick access to frequently desired programs or to changes to music or animation (disclosed below with reference to fig. 4). The system settings buttons 110 may provide quick access to changes in the display 104 settings, such as brightness or contrast, volume, or preferred units of measure, such as degrees fahrenheit or celsius.

FIG. 1B illustrates an embodiment of an optical sensor 150 that is mechanically and electrically connected to the screener body 112 of FIG. 1A through the sensor interface 102 of FIG. 1A. Pneumonia screening instrument 100 includes hardware and/or software capable of determining and/or monitoring blood oxygen levels, blood flow, respiratory rate, and/or other physiological parameters. For example, a pulse oximetry system may use an optical sensor 150 clipped to a patient's finger to, for example, measure blood oxygen levels, heart rate, blood flow, respiratory rate, and the like. In some embodiments, the optical sensor 150 may take on other form factors to more easily attach to other attachment sites, such as the tip of a toe or nose.

FIG. 2 illustrates an embodiment of a screen displaying age group selection. As mentioned above, one of the indicators of pneumonia is respiratory rate, which has different thresholds for different age groups. The age group is not necessarily in units of years, but may be defined in a monthly form. In addition, different respiratory rate detection thresholds may be used to determine pneumonia in children. The touch screen display 104 may prompt the operator to select an age group. The schematic shows an age group 202 of 0-2 months, an age group 204 of 2-12 months, and an age group 206 of 12-59 months. Further, each age group may have a defined respiration rate threshold for determining pneumonia, e.g., greater than or equal to 60 breaths per minute, 50 breaths per minute, and 40 breaths per minute, respectively, for each group. The selection of the age group matches the selected age group with an age group-related threshold respiratory rate programmed in a memory within the screener. In addition, the pneumonia screener 100 may match other measurement thresholds, such as blood oxygen saturation, pulse rate, or other physiological parameters, to a selected age group. The touch screen display 104 may display more age groups and thresholds associated with each provided age group. The pneumonia screening apparatus 100 may provide a confirmation user interface, such as a next step button 208. The button may be disabled (e.g., grayed out and/or not selectable) until the user selects an age group. Alternatively, the screening instrument 100 may not include or skip the confirmation user interface 208 and simply move to the next diagnostic step after the age group is selected. In this case, the user may press/touch the back button 106 to return to the age group selection.

FIG. 3 illustrates an example instruction screen. The user is instructed to place the optical sensor 150 on a finger, toe, ear, or other tissue examination site. The instruction is displayed on the touch screen display 104. As shown, the instructions may be written ("sensor placement") or presented via one or more graphical, moving image or video representations. After placing the sensors, the user may be required to press/touch the start button 304 to perform diagnostics. One or more sensors 200 may detect their placement from changes in optical or electrical readings and report the placement to the screening instrument. Alternatively, the start button 304 may be disabled until the sensor reports its placement, and may be activated only after placement. Alternatively, the screener may automatically perform a pneumonia diagnosis after the report is placed. Unsuccessful compliance with an instruction can cause re-cueing of the instruction, re-initialization of the program associated with the instruction, or change the manner in which the instruction is transmitted. These instructions may be static or dynamic, or may include one or more instructional videos.

The screening instrument may guide the user with voice prompts or audio prompts. For example, the screening instrument of fig. 3 may include audio or voice prompts in addition to or in lieu of written and demonstrative instructions, including but not limited to "place sensor," "place sensor on patient's fingertip," or some similar indication. The sound may emanate from the screener's speaker 306 or through some other sound output device. In addition to prompting context, written, demonstrative, or audible prompts may also be used to inform the context. For example, in addition to voice prompts requesting user interaction such as "put sensor," the screening instrument may provide updates to the diagnostic program such as "initialize device" or "look for pulse. Further, instead of a voice update, an audible prompt (such as a ring) may update the user with an event, such as completion of a pneumonia detection procedure.

FIG. 4 illustrates an interface displaying an animation indicating that a diagnosis is being performed. After the optical sensor 150 is placed on the patient and the diagnostic procedure has begun, the screening instrument collects physiological information from the optical sensor 150. The pneumotach 100 analyzes these plethysmographs to obtain various physiological parameters, including blood oxygen saturation 402, pulse rate 404, and respiratory rate 406. These three readings are highly informative for pneumonia diagnosis. In addition, the non-invasiveness of the optical sensor 200 is attractive to a wide range of doctors and patient audiences.

The collection and analysis of physiological information is not instantaneous and may take a period of time to complete. Complicating the diagnosis is the fact that pulse rate and respiration are closely related to the psychological state of the patient. When the patient is a child, accurate measurements become even more difficult. As mentioned above, children are prone to distraction or irritability. A child with anxiety or distraction may exhibit a measurement value that exceeds a threshold value due to distraction or agitation, making the overall diagnosis unreliable. Similar problems exist for adults.

Figure 4 illustrates a solution to distraction and/or agitation of a patient. The screening instrument 100 may provide some media content (e.g., animation 408, music, or both) to the patient. Animation 408 may show an elephant or other animal or character walking slowly from left to right. The screening instrument may output audio stimuli, such as elephant sounds and/or elephant footsteps, through one or more speakers 306 attached to the screening instrument. Other animals, characters or noticeable sounds can also make sounds. The screening instrument can play interesting music together with the animation. The elephant can be replaced by giraffe or moose. A string of walking animals or characters, which may be the same or different, may also be present. The display of an animation of an animal or character should not be considered limiting. In addition to any animal or symbol, any type of animation (including still pictures) and sound (including music) may be used during the diagnostic process to attract the interest of and to capture the attention of the child. As animation and music draw the attention of the child, the child becomes distracted to the screening instrument 100 rather than distracting from the screening instrument 100, which helps calm the child during diagnosis. Any animation can be synchronized with the music.

The screening instrument 400 may simultaneously present the media content along with the diagnostic progress indicator or diagnostic reading. For example, the screening instrument 400 may restrict presentation of media content to a portion of the display usage area and use the remaining display usage area for a diagnostic progress indicator or diagnostic reading. For example, FIG. 4 illustrates a screener 400 that presents an animation 408 near the bottom of the display and indicates that it is looking for a pulse near the top. Animations may be assigned to occupy various regions of the display usage area, such as the third or fourth region of the bottom. In the example illustration, the screener 400 indicates one or more physiological data and/or test results (e.g., blood oxygen saturation 402, pulse rate 404, and respiratory rate 406) in a middle portion. Alternatively, the detected waveform may be indicated.

The allocation of the actual use area of the display is such that the patient remains cool while the care provider can confirm that the measurement is in progress. The care provider can capture in real time any problems that affect the diagnosis, such as misplaced sensors or undesired patient movement, and resolve the problem in real time without waiting for the diagnostic procedure to complete.

The screening instrument may include such media content within its memory. Alternatively or additionally, the screener may access the media content server via its communication interface and download or stream the media content. For example, the screener may stream or download to present the latest episode of the cartoon during the diagnosis.

The pneumonia screening instrument can report whether pneumonia is detected according to the age group input and the reading of physiological parameters. The report may be accompanied by a visual indication, an audible indication, or both. The pneumonia screener may also report the severity of pneumonia based on deviations from stored threshold parameters or from associated tolerances. Each age group may have multiple associated thresholds, each associated with a severity of pneumonia. The screening instrument may report severity based on a threshold associated with the determined patient respiratory rate.

Fig. 5 illustrates an example system block diagram of an example pneumonia diagnostic system described herein. As depicted in fig. 5, the pneumonia diagnostic system 500 may include a pneumonia screening instrument 502. The pneumonia screening apparatus 502 may be small, light and durable enough to be portable. The architecture of pneumonia diagnostic system 502 may include an arrangement of computer hardware and software components for implementing aspects of the present disclosure. Pneumonia diagnostic system 502 may include more or fewer elements than those shown in fig. 5. Not all of these elements are necessarily shown to provide a viable disclosure.

As illustrated, pneumonia screening apparatus 502 may include a hardware processor 504, a memory 506, a power supply 508, a communication interface 510, a sensor interface 518, and/or an input/output device interface 520, all of which may communicate with each other via a communication bus 522 or any other data communication technique. The hardware processor 504 may read and write to the memory 506, and may provide output information to the display 542 via the input/output device interface 520. The example graphical user interface 400 of fig. 1A, 2, 3, and 4 and/or other media content may be presented on the speaker 540 and the display 542. For example, an animation may be played on display 542 along with music played by speaker 540. The input/output device interface 520 may also accept input from input devices 544, such as physical buttons, a digital pen, a touch screen, a gesture recognition system, and/or another input device capable of receiving user input. The display 542 and the input device 544 may have the same form factor and share some resources, for example in a display that supports a touch screen.

The pneumonia screening instrument 502 may be connected to a media content server 546 via one or more networks 548, such as the internet, a 3G/Wi-Fi/LTE/5G network, a satellite network, and the like. Pneumonia screener 502 may stream or download media content from media content server 546 over wired connection 512 or wireless connection 514. In addition, the pneumonia screening instrument 502 may retrieve new media content through a physically coupled external memory (such as a USB thumb drive) via the other port 516. Some of the media content may be stored in and accessed from the internal media content module 538 of the screener.

Pneumonia screening apparatus 502 may be connected via its sensor interface 518 (e.g., fig. 1A, 102) with one or more sensors 550. Various types of sensors may be connected to pneumonia screening instrument 502, including acoustic sensors or optical sensors. One or more sensors may provide readings of physiological parameters indicative of the presence of pneumonia symptoms to pneumonia screening apparatus 502.

The memory 506 may contain computer program instructions (grouped into modules or components in some embodiments) that the hardware processor 504 may execute to implement one or more embodiments described herein. Memory 506 may generally include RAM, ROM, and/or other permanent, auxiliary, or non-transitory computer-readable media. The memory 506 may store an operating system 524 that provides computer program instructions used by the hardware processor 504 in the general management and operation of the pneumonia screening apparatus 502.

Memory 506 may include computer program instructions and other information for implementing aspects of the present disclosure, including a respiratory rate calculation module 526, a pulse rate calculation module 528, a blood oxygen saturation calculation module 530, other measurement modules 532, a pneumonia diagnosis module 534, a media content module 538, and/or any combination of modules.

The pneumonia diagnostic module 534 may determine a likelihood that the patient has a pneumonia condition based on one or more physiological parameters determined from other modules (e.g., 526, 528, 530, 532). The pneumonia diagnostic module 534 may include an age and associated detection threshold association 536 with which the likelihood of a pneumonia condition may be diagnosed. The pneumonia diagnostic module 534 may indicate the diagnostic result through a display and/or a speaker. In some embodiments, the results may be indicated only by a set of distinguishable sounds so as not to disturb the patient being diagnosed. For example, a high tone may indicate the absence of a pneumonia condition, while a low tone may indicate the presence of a pneumonia condition.

Pneumonia screening apparatus 502 may include a media content module 538 that stores, indexes, and/or otherwise makes media content available to pneumonia screening apparatus 502 for presentation to speaker 540 and/or display 542. Based on patient interactions received through the one or more input devices 544, the pneumonia screening apparatus 502 may change the media content presented to the patient.

Pneumonia screening instrument 502 may be a separate device configured to couple with one or more sensors 550. Pneumonia screening instrument 502 may be an application configured to run on a mobile device, such as a smartphone or tablet computer, which may be coupled with one or more of the sensors 550 via an interface of the mobile device.

Term(s) for

Many other variations in addition to those described herein will be apparent in light of this disclosure. For example, certain acts, events or functions of any algorithm described herein can be performed in a different order, added together, merged together, or omitted together (e.g., not all described acts or events are necessary for the implementation of the algorithm). Further, acts or events may be performed concurrently, e.g., through multi-threaded processing, interrupt processing, or multiple processors or processor cores, or on other parallel architectures, rather than sequentially. In addition, different tasks or processes may be performed by different machines and/or computing systems that may function together.

It is to be understood that not necessarily all such advantages may be achieved in accordance with any particular one of the embodiments disclosed herein. Thus, the embodiments disclosed herein may be embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other advantages as may be taught or suggested herein.

The various illustrative logical blocks and modules described in connection with the implementations disclosed herein may be implemented or performed with a machine designed to perform the functions described herein, such as a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. A general purpose processor may be a microprocessor, but in the alternative, the processor may be a controller, microcontroller, or state machine, combinations thereof, or the like. The processor may comprise electronic circuitry or digital logic circuitry configured to process computer-executable instructions. In another example, a processor includes an FPGA or other programmable device that performs logic operations without processing computer-executable instructions. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. The computing environment may include any type of computer system, including but not limited to a microprocessor-based computer system, a mainframe computer, a digital signal processor, a portable computing device, a device controller, or a computational engine within an appliance, to name a few.

The steps of a method, process, or algorithm described in connection with the examples disclosed herein may be embodied directly in hardware, in a software module stored in one or more memory devices and executed by one or more processors, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of non-transitory computer-readable storage medium, media, or physical computer storage known in the art. An example storage medium may be coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The storage medium may be unstable or stable. The processor and the storage medium may reside in an ASIC.

As used herein, conditional language, such as "may," "e.g.," is generally intended to convey that certain embodiments include, but not others include, certain components, elements, and/or states unless expressly stated otherwise or understood otherwise in the context of such usage. Thus, such conditional language is not generally intended to imply that components, elements and/or states are in any way required for one or more embodiments or that one or more embodiments necessarily include instructions for deciding, with or without input or prompting by the inventor, whether such components, elements and/or states are included or are to be performed in any particular embodiment. The terms "comprising," "including," "having," and the like, are synonymous and are used inclusively, in an open-ended fashion, and do not exclude additional elements, components, acts, operations, and the like. In addition, the term "or" is used in its inclusive sense (and not its exclusive sense) such that, for example, when used in conjunction with a list of elements, the term "or" means one, some, or all of the elements in the list. Further, the term "each," as used herein, in addition to having its ordinary meaning, may also refer to any subset of a set of elements to which the term "each" is applied.

Unless expressly stated otherwise, an alternative language such as the phrase "X, Y or at least one of Z" is understood from the context to be used generically to indicate that an item, term, etc. can be either X, Y or Z or any combination thereof (e.g., X, Y and/or Z). Thus, such allogenic language is not generally intended to, and should not imply that certain embodiments require that at least one of X, at least one of Y, or at least one of Z all be present.

Articles such as "a" or "an" should generally be construed to include one or more of the described items unless expressly stated otherwise. Thus, phrases such as "a device configured as …" are intended to include one or more of the devices. Such one or more of the devices may also be collectively configured to implement the narration. For example, a "processor configured to implement statements A, B and C" may include a first processor configured to implement statement a working in conjunction with a second processor configured to implement statements B and C.

While the above detailed description has shown, described, and pointed out novel features as applied to various embodiments, it will be understood that various omissions, substitutions, and changes in the form and details of the system or algorithm illustrated may be made without departing from the spirit of the disclosure. As will be recognized, certain embodiments described herein may be embodied within a form that does not provide all of the features and benefits set forth herein, as some features may be used or practiced separately from others.

In addition, all publications, patents and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication, patent or patent application was specifically and individually indicated to be incorporated by reference.