• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method for delivering ventilatory support to a patient is presented. The method includes controlling delivery of a first backup breath by delaying onset of the first backup breath, wherein delaying the onset of the first backup breath is configured to allow selection of an appropriate backup rate. Systems and computer-readable medium that afford functionality of the type defined by this method is also contemplated in conjunction with the present technique.
    公开号:SE534658C2
    申请号:SE0950455
    申请日:2009-06-12
    公开日:2011-11-08
    发明作者:Andrew Phillip Levi
    申请人:Gen Electric；
    IPC主号:
    专利说明:

    534 858 the patient is intubated and placed in a ventilator and ventilated using positive pressure.
    Alternatively, the patient may be non-invasively ventilated.
    Non-invasive ventilation can be used to refer to the delivery of mechanical respiration through the use of a face mask or other similar devices as opposed to the use of an endotracheal tube in invasive ventilation.
    Non-invasive respiration (IV) should be used to an increasing extent to avoid complications caused by invasive ventilation, such as infections and / or respiratory trauma.
    As will be appreciated, IV, during artificial ventilation, such as the patient may stop others for a period of time.
    Spontaneous breathing patients can often breathe in an accelerated manner and slow their breathing or even temporarily pause breathing.
    There are heynes-Stokes respiratory conditions that result in enhancement specific clinical as of this type of respiration. It may be desirable to deliver backup breaths if this period exceeds a predetermined time period, where the predetermined time period may include a backup rate.
    Currently available techniques that implement a more varied breathing pattern in a less than optimal way. backup speed unfortunately takes into account these More specifically, the currently available techniques are insensitive to pauses in the breathing pattern of patients because. These techniques are configured to deliver the initial backup breaths exactly one breathing period after the most recent trigger event. Furthermore, the implementation of backup breaths in the currently available techniques unfavorably results in clinicians setting the backup 534 B58 speed to a very low value. This increases the chance that patients become asynchronous with the ventilator or do not get needed and uncomfortable backup breathing. Furthermore, the onx patient really becomes apnea and stops breathing, currently available techniques will not deliver a sufficient number of backup breaths for proper ventilation.
    It may therefore be desirable to develop a design of a method that can be configured to advantageously assist in the smart delivery of backup breaths, thereby minimizing the patient's workflow. improve clinical that the desired discomfort and More specifically, it may be delaying the start of a first backup breath, thereby allowing the patient to temporarily pause breathing.
    Brief Description In accordance with aspects of the present art, a method of delivering ventilator support to a patient is presented.
    The method includes controlling delivery of a first backup breath by delaying the start of the first backup breath, the delay of the start of the first backup breath being configured to allow selection of an appropriate backup speed. Computer readable medium that allows functionality of the type defined by this method is also contemplated in connection with the present technology.
    In accordance with further aspects of the present art, a system for delivering ventilator support to a patient is presented.
    The system includes a ventilator system configured to provide artificial ventilation to the patient, the ventilator system being operatively connected to the patient via a patient interface. Furthermore, the 534 B58 system includes a backup breath delivery module configured to automatically control delivery of a first backup breath by delaying the start of * the first backup breath, the delay of the start of the first backup breath being configured to allow selection of a suitable backup speed.
    Drawings These and further features, aspects and advantages of being better understood when reading the following detailed description taken in conjunction with the present invention will accompany the accompanying drawings, in which like characters represent like parts throughout the drawings, in which: FIG. 1 is a block diagram of a ventilator system configured to deliver ventilator support to a patient, in accordance with aspects of the present art.
    FIG. 2 is an illustration of a flow chart as an exemplary method of delivering ventilator support to a patient in accordance with aspects of the present art.
    FIG. 3 is a diagrammatic illustration of the method of delivering ventilator support to a patient according to FIG. 2, in accordance with aspects of the present art.
    FIG. 4 is another diagrammatic illustration of the method of delivering ventilator support to a patient according to FIG. 2, in accordance with aspects of the present art.
    Detailed Description FIG. 1 is a ventilator system 10 that may be configured to assist in block diagrams of exemplary 534 B58 delivery of ventilator support to a patient 12, in accordance with the exemplary ventilator system 10 that may be configured with aspects of the present technology. In other words, a traditional IVA ventilator helps in smart delivery of ventilator support to the patient 12, thereby increasing the clinical workflow and minimizing discomfort for the patient 12.
    The ventilation system 10 may generally be operatively coupled to the patient 12 via a patient interface 18. It may be noted the patient interface 18 may include an invasive patient interface, non-invasive an example the invasive patient interface may comprise a patient interface or a combination thereof. As a breathing tube. The trachea can be inserted through the patient's nose or mouth and inserted into the patient's airway until the trachea passes through the patient's larynx. Examples of non-invasive patient interfaces may include a face mask.
    Further, in FIG. 1, the ventilator system 10 is shown being operatively connected to the patient 12. In one embodiment, the ventilator system 10 may include a ventilator 14, such as an IVA ventilator. As will be appreciated, the IVA ventilator 14 is a machine that may be configured to assist the patient 12 to breathe through an IVA patient interface 18, the patient interface 18 being operatively connected to the ventilator 14. Furthermore, the IVA ventilator 14 may also include a first connector 20. and a second connector 22.
    The first connector 20 and the second connector 22 may be configured to assist in operatively coupling the IVA ventilator 14 to the patient 12 via the patient interface 18. 534 E58 As noted above, the patient 12 may be operatively coupled to the IVA ventilator 14 via the patient interface 18.
    The patient interface 18 may include an inhalation branch 24 and an exhalation branch 26. in FIG. In the illustrated embodiment, the patient interface 18 is shown as being operatively coupled to the first connector 20 of the IVA ventilator 14 via the inhalation branch 24. The IVA ventilator 14 may be configured to pump gas into the patient's 12 lungs through 24. In a manner, the patient interface 18 being operatively connected to the inhalation branch similarly, the second connector 22 in the IVA ventilator 14 is also shown via the exhalation branch 26. The IVA ventilator 14 may be configured to assist in exhaling gas from the patient's 12 lungs through the exhalation branch 26.
    As will be several variations in To realize, the breathing pattern of the patient exists 12. For example, the patient may breathe rapidly, slow down his breathing, pause his breathing, stop breathing, or a combination thereof. In general, currently available techniques fail to allow pauses in the breathing patterns of a patient 12 because these techniques are configured to deliver a first backup breath exactly one breathing period after the most recent trigger event. Consequently, backup breaths can be unnecessarily delivered to the patient 12, thereby increasing the patient's discomfort. Consequently, that module which is a traditional fan system in the delivery of smart fan support. PREPARED A CONFIGURED ADVANTAGEOUS ASSIST In accordance with aspects of the present technology, shortcomings of currently available techniques can be avoided by using an exemplary smart 534 B58 7 backup breath delivery module 16. In the embodiment illustrated in FIG. 1, the IVA ventilator 14 may be shown as including a smart backup breath delivery module 16, wherein the smart backup breath delivery module 16 is configured to assist the IVA ventilator 14 in delaying the start of a first backup breath to the patient 12. More specifically, the smart backup the breath delivery module 16 may be configured to use an earlier breathing period to delay the start of the first backup breath to the patient 12.
    Furthermore, in a presently contemplated configuration, the IVA fan 14 is shown as including the smart backup breath delivery module 16. However, in some other embodiments, the smart backup breath delivery module 16 may include a stand-alone module configured for use with a fan system, such as the fan system 10. (see FIG. 1). The operation of the smart backup breath delivery module 16 will be described in more detail with reference to FIGS. 3-4.
    In addition, the ventilator system 10 may also include a pressure measuring subsystem 28, where the pressure measuring subsystem 28 may be configured to assist in measuring the pressure of the air pumped into the patient 12. It may be noted that in some embodiments, an additional pressure measuring subsystem (not shown) may be provided. in Fig. 1) is used to assist in measuring the air pressure on the breathing tube side.
    Unfortunately, as described above, currently available techniques that implement a backup rate are insensitive to pauses in the breathing patterns of the patient 12 and take into account these variations in respiration in a smaller 534 B58 than optimal way. More specifically, for increased use of currently available techniques results in levels of patient discomfort as the currently available techniques are generally programmed to deliver backup breaths exactly one breathing period after the most recent trigger event. Thus, it may be desirable to develop a method configured to improve the delivery of ventilator support to thereby reduce the patient's discomfort and improve the clinical workflow.
    More specifically, it may be desirable to develop a method configured to allow smart delivery of backup breaths, thereby allowing patient 12 to temporarily pause breathing and avoid inadvertent delivery of backup breaths during breathing pauses.
    FIG. 3 is a flow chart 30 showing an exemplary method of delivering smart ventilator support to a patient, such as patient 12 (see FIG. 1). In a presently contemplated configuration, the smart backup breathing delivery module 16 (see FIG. 1) may be configured to assist the IVA ventilator 14 (see FIG. 1) in the exemplary method of delivering ventilator support to the patient.
    The method starts in step 32, where a patient's breathing pattern is constantly monitored. As will be appreciated, a patient's breathing pattern, such as patient 12, during ventilator support may vary over time periods. For example, a spontaneously breathing patient may breathe in an accelerated manner and / or slow down his breathing or even pause breathing. Using currently available techniques, as the ventilator system detects this pause in the patient's breathing, a backup breath is delivered exactly one breathing period after the most recent trigger event. Furthermore, the clinician typically sets the backup speed to a very low value. Unfortunately, a patient who has temporarily paused breathing may get unwanted and / or unpleasant backup- Thus, the patient's breathing pattern, breathing. may, as indicated in step 32., be desirable to monitor. Further, in accordance with exemplary aspects of the present art, a method of delivering ventilator support is presented by controlling delivery of backup breaths to the Mer patient. specifically, the exemplary method may be configured to facilitate the delay of delivery of backup breaths based on one for the clinician to set a more appropriate backup speed. previous breathing intervals, thereby allowing In accordance with aspects of the present art, the smart backup breath delivery module 16 may be configured to delay the start of a first backup breath. More specifically, the smart backup breath delivery module 16 may be configured to delay the start of the first backup two consecutive previous breaths or trigger events. to the breath based on the time interval between This time interval can be referred to as a previous breathing interval. In other words, the smart backup breath delivery module 16 may be configured to delay the start of the first backup breath by postponing the beginning of the first on the one based on the Backup Breath based on the previous breathing interval. For example, time intervals between two consecutive breaths can be measured, as shown in step 34. In some embodiments, the 534 E58 smart backup breath delivery module may be configured to monitor a "previous" breathing interval. that all As will be realized, in a spontaneous mode of breathing the patient triggers breathing. In other words, a time interval between two previous trigger events (breaths) can be monitored, as shown by step 34.
    Traditionally, if the previous breathing interval exceeds a predetermined threshold value, the first backup breath is delivered. The predetermined threshold value may include a user time period in certain embodiments. For example, the user time period may include a backup speed. In addition, when a patient resumes breathing, the delivery of backup breathing is stopped. In accordance with aspects of the present technology, the smart backup breath delivery module may be configured to delay the start of the first backup breath in order to allow the patient to resume breathing after a pause in his / her breathing pattern. Consequently, in step 36, the previous breathing interval can be compared with the predetermined threshold value.
    Then, in step 38, a check can be performed to verify if the previous breathing interval exceeds the predetermined threshold value. If it is verified that the previous breathing interval exceeds the predetermined threshold value, the start of the first backup breath may be delayed, as indicated in step 40. However, step 38 that breathing interval does not exceed the predetermined one if it is verified that the previous threshold value , control can return to step 34. 534 B58 ll In accordance with exemplary aspects of the present technology, the start of a first backup breath may be delayed by up to twice the set backup period. As used herein, the term backup period is used to refer to an equivalent to the user-backed-up speed. More specifically, in technology, in accordance with aspects of the present start of the first backup breath, the following can be delayed as follows: First backup breathing period == [(backup period - previous breathing interval) + backup period)] (1) By using equation (1 ), an initial backup period can be calculated. As used herein, the term first backup period may be used to refer to a period of time between a previous respiratory trigger event and the first backup breath. In other words, the first backup period can be representative of a time period between when the last trigger event occurred and when the first backup breath 2 can be initiated. The method of delivering fan support in FIG. better understood with reference to FIGS. 3-4.
    Referring now to FIG. 3 shows an illustration 50 in diagrammatic form of an exemplary method for delivering fan support according to FIG. More specifically, the step of delaying the start of the first backup breath FIG. 2) (step 40 i is shown in FIG. 3. Reference numeral 52 may be representative of a time axis (X-axis), while an amplitude axis (Y-axis) may generally be represented by reference numeral 54. As noted with reference to FIG. the patient's breathing pattern can be monitored.
    Patient-triggered breaths can generally be represented by reference numeral 56. 534 B58 12 In the example illustrated in FIG. 3, the patient's breathing pattern indicates that the patient is breathing twice as fast as a set backup speed and then stops breathing.
    Furthermore, in displayed (bpm) The 20 bpm triggering rate results in a present example, the patient as triggering at 20 breaths per minute and then stops breathing. breathing period of 3 seconds. This breathing period can generally be represented by reference numeral 58 and may be referred to as the previous breathing interval.
    Furthermore, as previously noted, a time interval between two previous trigger events can be measured. In other words, the previous breathing interval can be measured. In addition, in the present example, the previous breathing interval is 3 seconds. However, as illustrated in FIG. 3, the patient stops breathing at the sixth second. When the new previous breathing interval is calculated, the new previous breathing interval can be compared with the predetermined threshold value, namely the user-set backup period. Since the new calculated previous breathing interval is greater than the predetermined threshold value, the start of the first backup breath may be delayed, thereby allowing the patient additional time to resume breathing.
    It can be noted that in the present example, the used backup speed may be 10 bpm. Consequently, a corresponding backup period can be 6 seconds. Using equation (1), the first backup breathing period can be calculated according to: First backup period = [(6-3) + 6] = 9 seconds 534 B58 13 can Consequently the start of a first backup breath 13th delayed is initiated at that second. In the present example, the first backup breath may be represented by reference numeral 60.
    The time for starting the first delayed backup breath can be represented by reference numeral 62. In addition, reference numeral 64 may be representative of a second delayed backup breath. that the delayed backup breath 64 is configured to occur in It may be noted other in accordance with a user backed up period 66. In other words, when the first delayed backup breath 60 is delivered, subsequent backup breaths, such as the second delayed backup breath 64, is delivered at the preset backup period 66 until the patient resumes breathing.
    It can be noted that the use of currently available techniques results in a first backup breath 68 that occurs exactly one time period after the most recent trigger event. In other words, in the present example, the first backup breath may have occurred 6 seconds after the last trigger event that occurred at the 4th second.
    In other words, the first backup breath 68 may have occurred at the 10th second. The start of the first backup period 68 can be represented by reference numeral 70. Furthermore, reference numeral 72 is representative of a second backup breath which may have occurred after a set backup period after the occurrence of the first backup breath 68. It may be noted that if the pause in breathing exceeds the respiratory arrest time, the first backup breath will be delivered. 534 B58 I4 In the present example, by implementing the method of delivering fan support by delaying the start of the first delayed backup breath 60, the time interval between the last trigger event at the 4th second and the start of the first delayed backup breath 60 advantageously improves to 9 seconds, as opposed to a time interval of 6 seconds when using currently available techniques. The time period between the last trigger event 56 at the 4th second and the first delayed backup breath 60 can generally be represented by. Reference numeral 74. Similarly, reference numeral 76 may be indicative of a period of time after the last trigger event 56 at the 4th second and as the first backup breath 68 provided by the currently available techniques.
    Consequently, the patient can be allowed to momentarily pause his breathing without the ventilator system prematurely delivering a backup breath and causing discomfort to the patient.
    Referring now to FIG. 4 shows an illustration 80 in diagrammatic form of an exemplary method of delivering fan support according to FIG. More specifically, Fig. 4 shows the step of delaying the start of the first backup breath (step 40 in Fig. 2). Reference numeral 82 may be representative of a time axis (X-axis), while an amplitude axis (Y-axis) may generally be represented by reference numeral 84.
    FIG. 2 As noted, the patient's breathing pattern can be monitored.
    Patient-triggered breaths can generally be represented by reference numeral 86. 534 E58 Here again, in the example illustrated in FIG. 4, the patient's breathing pattern indicates that the patient is breathing twice as fast as a set backup speed and then pauses breathing. Furthermore, in the presented example, the patient is shown as triggering at 20 breaths per minute (bpm) and then pauses breathing for 9 seconds. The 20 bpm triggering speed results in a breathing period of 3 seconds.
    This breathing period can generally be represented by reference numeral 58.
    Furthermore, as noted earlier, a time interval (the previous one between the breathing intervals) of two previous trigger events 86 can be measured. In the present example, the previous breathing interval between the previous two trigger events is 86 3 seconds. However, as illustrated in FIG. 3, the patient pauses breathing at the 6th second and resumes breathing at the 13th second. The resumed patient-triggered breaths can generally be represented by the reference numeral 90. Consequently, when the new previous breathing interval is calculated, the new one can be calculated a new previous breathing interval. the previous breathing interval is compared with the determined threshold value, namely the user-backed up period. In the present example, the new previous breathing interval is 9 seconds, the threshold value while the predetermined (set seconds. Backup period) is 6 Since the new previous breathing interval is larger than the predetermined threshold value, the start of the first backup breath may be delayed.
    In the present example, it can be noted that the used backup speed can be 10 bpm. Consequently, a corresponding period of 534 B58 16 can be 6 seconds. Using equation (1), the first backup ~ breathing period can be calculated as: First backup period = [(6-3) + 6] = 9 seconds Consequently, the start of a first delayed backup breath can be delayed to be initiated at the 13th second.
    However, since the patient is shown as resuming breathing at the 13th second, the delayed first backup breath is not delivered to the patient.
    It can be noted that for available techniques, may have resulted in a first use of the present backup breath 92 occurring at exactly one time period after the most recent trigger event. In other words, in the present example, the first backup breath may have occurred 6 seconds after the last trigger event occurring at the 4th second. In other words, the first backup breath 92 may have occurred at the 10th second. This start of the first backup breath 92 can be indicated by reference numeral 94.
    By implementing the method of delivering fan support by delaying the start of the first backup breath as described with reference to FIG. 4, the patient can be allowed to rest or pause breathing periods before one is delivered. backup breath Consequently, the patient is allowed to pause in his breathing without the ventilator system prematurely delivering a backup breath and causing discomfort to the patient. In other words, the present technology can be configured to prevent a first backup breath from occurring during a pause in the patient's breathing. In contrast, by using the currently available technology, the first backup breath may have occurred at the 10th second, thereby delivering unwanted backup breaths to the patient. Furthermore, the present technique allows the clinician to set a comparatively higher backup speed and thus increase the patient's comfort.
    As will be appreciated by one skilled in the art, the foregoing examples, demonstrations, and process steps may be implemented by appropriate code in a processor-based system, such as a general purpose or special purpose computer. It should also be noted that different implementations of the present technology may perform some or all of the steps described herein in different order or substantially simultaneously, that is, in parallel. Furthermore, the functions can be implemented in a variety of programming languages, to C ++ including but not limited to Java or in paradigms such as Service Oriented Architecture. Such code may, as will be appreciated by one skilled in the art, be stored or adapted for storage on one or more real machine readable media, such as on memory chips, local or remote hard disks (i.e., the CD or DVD) or other media, which may accessed through a processor-based system to execute the stored code. Note that the actual media may include paper or other suitable media on which the instructions are written. For example, the instructions can be captured electronically via optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in an appropriate manner if necessary and then stored in a computer memory. 5313 E58 I8 The method of delivering ventilator support to the patient and the system of delivering ventilator support to the patient described above dramatically simplify the clinical workflow by advantageously allowing control of delivery of the first backup breath. More specifically, patient comfort can be dramatically improved by delaying the start of the first backup breath, thereby allowing the patient to temporarily pause breathing. Furthermore, by using the exemplary method of delivering ventilator support, the patient is advantageously allowed to pause breathing without having a ventilator system that delivers an unwanted backup breath prematurely. In addition, the smart delivery of backup breaths described above allows the clinician to set a more appropriate backup speed.
    The above description of embodiments of the ventilator support delivery system to the patient and the method of delivering ventilator support to the patient have the technical effect of improving patient comfort by allowing the patient to temporarily pause breathing by delaying the onset of backup breathing. In addition, allowing the tile to set a higher backup speed can improve the clinical workflow.
    Since only certain features of the invention have been illustrated and described herein, many modifications and alterations may be made by one skilled in the art. it is therefore to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.
    权利要求:
    Claims (6)
    [1]
    A method of controlling delivery of a first backup breath to a patient, the method comprising: monitoring a patient's breathing pattern; measuring a first time interval between two most recent consecutive breaths and delaying the start of the first backup breath, by postponing the start of the first backup breath based on the measured first time interval, thereby delaying the start of the first backup the handle is configured to allow the selection of a backup speed.
    [2]
    The method of claim 1, further comprising comparing the first time interval with a predetermined threshold value.
    [3]
    The method of claim 2, further comprising delaying the start of the first backup breath if the measured first time interval exceeds the predetermined threshold value.
    [4]
    The method of claim 1, wherein postponing the start of the first backup breath comprises delaying the start of the first backup breath by up to twice the predetermined threshold value.
    [5]
    System (10) patient (12), the system comprising: for delivering ventilator support to a ventilator system (14) respiration (14) via a patient interface configured to provide to (12), is operative connected to the patient (18), the artificial patient wherein the ventilator system (12) and a backup breath delivery module (16) configured to: monitor a patient's breathing pattern; measuring a first time interval (58) preceding consecutive breaths (56) and between two most recently automatically checking delivery of a first backup breath by delaying the start of the first backup breath, delaying the start of the first backup breath comprising to postpone the start of the first backup breath based on the measured first time interval and wherein the delay of the start of the first backup breath is configured to allow selection of a backup speed.
    [6]
    The system (10) for delivering ventilator support to a patient (12) according to claim 5, wherein the backup breath delivery module (16) is further configured to: compare the first time interval determined threshold value. (58) with one in advance
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN101601884B|2014-07-09|
    SE0950455L|2009-12-14|
    CN101601884A|2009-12-16|
    US8726902B2|2014-05-20|
    DE102009025967A1|2009-12-17|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US12/138,605|US8726902B2|2008-06-13|2008-06-13|System and method for smart delivery of backup breaths|
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