U.S. patent application number 17/476717 was filed with the patent office on 2022-01-06 for cardiopulmonary resuscitation training apparatus and cardiopulmonary resuscitation training evaluation method.
This patent application is currently assigned to Innosonian Inc.. The applicant listed for this patent is Innosonian Inc.. Invention is credited to Kwang Hee Choi, Mok CHUNG, Woong Hur, Nam Hun Kim, Nam Je Lee.
Application Number | 20220005378 17/476717 |
Document ID | / |
Family ID | |
Filed Date | 2022-01-06 |
United States Patent
Application |
20220005378 |
Kind Code |
A1 |
CHUNG; Mok ; et al. |
January 6, 2022 |
CARDIOPULMONARY RESUSCITATION TRAINING APPARATUS AND
CARDIOPULMONARY RESUSCITATION TRAINING EVALUATION METHOD
Abstract
Provided/Disclosed is a cardiopulmonary resuscitation (CPR)
training apparatus, comprising: a mannequin including a head
portion with an airway, and a body portion connected to the head
portion; a compression portion provided in the body portion, the
compression portion to be pressed in response to a chest
compression; an airbag connected to the airway, the airbag
configured to enable an artificial ventilation; and a measurer
configured to measure a CPR performance state in response to the
chest compression and the artificial ventilation performed on the
mannequin.
Inventors: |
CHUNG; Mok; (Seoul, KR)
; Hur; Woong; (Seoul, KR) ; Lee; Nam Je;
(Seoul, KR) ; Choi; Kwang Hee; (Gyeonggi-do,
KR) ; Kim; Nam Hun; (Incheon, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Innosonian Inc. |
Seoul |
|
KR |
|
|
Assignee: |
Innosonian Inc.
Seoul
KR
|
Appl. No.: |
17/476717 |
Filed: |
September 16, 2021 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
16025666 |
Jul 2, 2018 |
11158211 |
|
|
17476717 |
|
|
|
|
International
Class: |
G09B 23/28 20060101
G09B023/28; G09B 23/32 20060101 G09B023/32 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 4, 2017 |
KR |
10-2017-0084775 |
Jul 4, 2017 |
KR |
10-2017-0084776 |
Claims
1. A cardiopulmonary resuscitation (CPR) training evaluation method
through a CPR training apparatus, the CPR training evaluation
method comprising: obtaining CPR action information of a user in
relation to a CPR action performed on the CPR training apparatus;
providing a CPR performance state of the user in real time based on
the obtained action information; and evaluating a CPR performance
result of the user after CPR training is terminated, wherein the
CPR training apparatus, comprising: a mannequin including a head
portion with an airway, and a body portion connected to the head
portion; a compression portion provided in the body portion, the
compression portion to be pressed in response to a chest
compression; an airbag connected to the airway, the airbag
configured to enable an artificial ventilation; and a measurer
configured to measure a CPR performance state in response to the
chest compression and the artificial ventilation performed on the
mannequin.
2. The CPR training evaluation method of claim 1, wherein the
providing comprises: quantifying the obtained CPR action
information; classifying the quantified action information for a
plurality of set items; and converting the action information
classified for each of the items into an index with respect to the
CPR performance state and providing the index.
3. The CPR training evaluation method of claim 2, wherein the
converting comprises converting chest compression action
information of the quantified CPR action information into a
distribution map with respect to a depth and a rate of chest
compression, and cumulatively displaying indices with respect to
chest compression actions performed by the user to be distinguished
from each other.
4. The CPR training evaluation method of claim 1, wherein the
evaluating comprises: quantifying action information related to an
action performed during a CPR training period; classifying the
quantified action information for each set item; converting the
action information classified for each item by applying a weight
for each set item; and calculating a composite value with respect
to the CPR performance result based on the converted action
information for each item.
5. The CPR training evaluation method of claim 1, wherein the
evaluating comprises providing a CPR graph sequentially showing an
expected effect as time passes in response to each action of CPR
performed by the user.
Description
CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] This application a divisional of, claims the benefit of and
priority to previously filed U.S. patent application Ser. No.
16/025,666 filed Jul. 2, 2018, entitled "CARDIOPULMONARY
RESUSCITATION TRAINING APPARATUS AND CARDIOPULMONARY RESUSCITATION
TRAINING EVALUATION METHOD", which claims the priority benefit of
Korean Patent Application No. 10-2017-0084775 filed on Jul. 4, 2017
and Korean Patent Application No. 10-2017-0084776 filed on Jul. 4,
2017 in the Korean Intellectual Property Office, the disclosures of
which are incorporated herein by reference for all purposes.
BACKGROUND
1. Field
[0002] One or more example embodiments relate to a cardiopulmonary
resuscitation (CPR) training apparatus and a CPR training
evaluation method using the same.
2. Description of Related Art
[0003] In general, CPR is a procedure to resuscitate a patient who
has slowed or stopped cardiopulmonary function by restoring the
cardiopulmonary function. For general CPR, a performer checks
responsiveness, opens an airway, performs artificial ventilation,
and provides cardiac massage to recover a cardiac function.
[0004] For CPR, it is important to open the airway after checking
responsiveness by tapping shoulders of the patient. The airway is a
respiratory track including a nasal cavity, an oral cavity, a
pharynx, a larynx, bronchi, and lungs. When cardiac arrest or apnea
happens, muscle tension of a tongue decreases, and the tongue
blocks a pharyngeal area, which results in airway obstruction.
Airway obstruction often results from consciousness disorder after
cardiac arrest, apnea, head injury, or stroke happens.
[0005] To open the airway, the performer checks whether foreign
materials such as vomitus are in the oral cavity and removes the
materials. When the materials are removed, the performer lifts the
neck with one hand, and tilts the head back by pressing the head
with the other hand on the forehead.
[0006] When the airway is opened, the performer checks whether the
patient is breathing. If the patient is not breathing, the
performer performs artificial ventilation. Artificial ventilation
refers to a procedure to artificially recover the function of the
lungs to maintain normal respiration in case of suspended animation
in which the patient is not breathing while the heart is still
beating after drowning, poisoning, or bleeding.
[0007] Artificial ventilation is performed in two steps, an
exhaling step by the performer exhaling air into the lungs of the
patient and a manual ventilation step by the performer compressing
a chest of the patient with the hands of the performer to aid
inhalation and exhalation.
[0008] Such CPR is performed on a human body, and thus it is
difficult for the performer to perform self-training repeatedly.
Thus, in the past, a mannequin-shaped CPR training apparatus
provided in a shape of a human body was used for CPR training.
However, it was difficult to know whether the performer is
performing CPR correctly.
[0009] Accordingly, there is a demand for a CPR training apparatus
that enables a performer to intuitively check whether the performer
is performing correct CPR during CPR training.
SUMMARY
[0010] An aspect provides a cardiopulmonary resuscitation (CPR)
training apparatus and a CPR training evaluation method that may
display a CPR performance state of a user in real time, thereby
enabling effective CPR training for the user.
[0011] Another aspect also provides a CPR training apparatus and a
CPR training evaluation method that may intuitively provide a user
with a CPR performance state based on a position and a depth of
chest compression.
[0012] According to an aspect, there is provided a cardiopulmonary
resuscitation (CPR) training apparatus including a mannequin that
includes a head portion with an airway and a body portion connected
to the head portion, a compression portion provided in the body
portion, the compression portion to be pressed in response to a
chest compression, an airbag connected to the airway, the airbag
configured to enable an artificial ventilation, and a measurer
configured to measure a CPR performance state in response to the
chest compression and the artificial ventilation performed on the
mannequin.
[0013] The compression portion may include a compression plate
provided in the body portion, an elastic body connected to the
compression plate, the elastic body configured to provide a
restoring force, a tilt detecting sensor installed on the
compression plate, the tilt detecting sensor configured to detect a
change in a tilt of the compression plate in response to the chest
compression, and a position detecting sensor configured to detect a
change in a relative position of the compression plate with respect
to the body portion.
[0014] The CPR training apparatus may further include a magnetic
substance and a magnetic field sensor configured to measure a
change in a distance between the body portion and the compression
plate in response to a change in a volume of the airbag.
[0015] The measurer may be configured to measure a position of the
chest compression performed on the body portion through the tilt
detecting sensor, and measure a rate and a depth of the chest
compression performed on the body portion through the position
detecting sensor.
[0016] The measurer may be configured to set a database determined
based on the position and the depth of the chest compression
performed on the body portion, obtain matching reference values by
comparing a tilt value of the compression plate measured through
the tilt detecting sensor and a position change value of the
compression plate measured through the position detecting sensor to
the database, and detect the position of the chest compression
performed on the body portion based on the matching reference
values.
[0017] The magnetic field sensor may be disposed on the compression
plate, and the magnetic substance may be disposed on a front
surface of the body portion, wherein the magnetic field sensor may
be configured to detect a change in a magnetic field in response to
the change in the volume of the airbag, and the measurer may be
configured to measure a performance state of the artificial
ventilation performed on the mannequin through the detected change
in the magnetic field.
[0018] The CPR training apparatus may further include a contact
protrusion provided on the compression plate, the contact
protrusion configured to protrude toward a rear surface of the body
portion, and a clicker disposed on an inner rear surface of the
body portion, the clicker configured to produce a sound when in
contact with the contact protrusion.
[0019] The CPR training apparatus may further include a
communicator configured to transmit information measured by the
measurer to an external server.
[0020] The CPR training apparatus may further include a display
configured to display a virtual blood movement based on the CPR
performance state, wherein the display may include a light emitting
line including a plurality of light emitting diodes (LEDs)
configured to sequentially emit light based on the measured CPR
performance state.
[0021] The light emitting line may include a compression depth
displaying line disposed to extend from a chest of the body portion
toward both shoulders of the body portion, the compression depth
displaying line configured to display a virtual cardiac output
corresponding to the depth of the chest compression, and a blood
circulation displaying line disposed to circulate through the body
portion and the head portion, the blood circulation displaying line
configured to display a virtual blood circulation corresponding to
a performance state of the chest compression.
[0022] According to another aspect, there is provided a CPR
training evaluation method through a CPR training apparatus, the
CPR training evaluation method including obtaining CPR action
information of a user in relation to a CPR action performed on the
CPR training apparatus, providing a CPR performance state of the
user in real time based on the obtained action information, and
evaluating a CPR performance result of the user after CPR training
is terminated.
[0023] The providing may include quantifying the obtained CPR
action information, classifying the quantified action information
for a plurality of set items, and converting the action information
classified for each of the items into an index with respect to the
CPR performance state and providing the index.
[0024] The converting may include converting chest compression
action information of the quantified CPR action information into a
distribution map with respect to a depth and a rate of chest
compression, and cumulatively displaying indices with respect to
chest compression actions performed by the user to be distinguished
from each other.
[0025] The evaluating may include quantifying action information
related to an action performed during a CPR training period,
classifying the quantified action information for each set item,
converting the action information classified for each item by
applying a weight for each set item, and calculating a composite
value with respect to the CPR performance result based on the
converted action information for each item.
[0026] The evaluating may include providing a CPR graph
sequentially showing an expected effect as time passes in response
to each action of CPR performed by the user.
[0027] Additional aspects of example embodiments will be set forth
in part in the description which follows and, in part, will be
apparent from the description, or may be learned by practice of the
disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0028] These and/or other aspects, features, and advantages of the
invention will become apparent and more readily appreciated from
the following description of example embodiments, taken in
conjunction with the accompanying drawings of which:
[0029] FIG. 1 illustrating an example of using a cardiopulmonary
resuscitation (CPR) training system according to an example
embodiment;
[0030] FIG. 2 is a top view of a CPR training apparatus according
to an example embodiment;
[0031] FIG. 3 is a see-through top view of a CPR training apparatus
according to an example embodiment;
[0032] FIG. 4 is a side cross-sectional view of a CPR training
apparatus according to an example embodiment;
[0033] FIG. 5 is a view illustrating a display according to an
example embodiment;
[0034] FIG. 6 is a block diagram of a CPR training apparatus
according to an example embodiment;
[0035] FIG. 7 illustrates an operation of a CPR training apparatus
according to an example embodiment;
[0036] FIG. 8 illustrates a position of chest compression performed
on a CPR training apparatus according to an example embodiment;
[0037] FIG. 9 illustrates an operating process of a tilt detecting
sensor with respect to the position of chest compression of FIG.
8;
[0038] FIG. 10 is a flowchart illustrating an operation of a
measurer according to an example embodiment;
[0039] FIG. 11 is a flowchart illustrating a CPR training
evaluation method according to an example embodiment;
[0040] FIG. 12 is a flowchart illustrating an example of providing
a CPR performance state according to an example embodiment;
[0041] FIG. 13 is a flowchart illustrating an example of index
conversion according to an example embodiment;
[0042] FIG. 14 illustrates an example of a CPR performance state
provided through a CPR training evaluation method according to an
example embodiment;
[0043] FIG. 15 illustrates an example of a chest compression
performance state index provided through a CPR training evaluation
method according to an example embodiment;
[0044] FIG. 16 illustrates an example of an artificial ventilation
performance state index provided through a CPR training evaluation
method according to an example embodiment;
[0045] FIG. 17 illustrates an example of an artificial ventilation
performance state index provided through a CPR training evaluation
method according to an example embodiment;
[0046] FIG. 18 illustrates an example of a chest compression
distribution map provided through a CPR training evaluation method
according to an example embodiment;
[0047] FIG. 19 is a flowchart illustrating an example of evaluating
a CPR performance result according to an example embodiment;
[0048] FIG. 20 illustrates an example of a CPR performance result
provided through a CPR training evaluation method according to an
example embodiment;
[0049] FIG. 21 illustrates an example of a CPR performance result
provided through a CPR training evaluation method according to an
example embodiment;
[0050] FIG. 22 illustrates an example of a CPR performance result
provided through a CPR training evaluation method according to an
example embodiment; and
[0051] FIG. 23 illustrates an example of a CPR performance result
provided through a CPR training evaluation method according to an
example embodiment.
DETAILED DESCRIPTION
[0052] Hereinafter, some example embodiments will be described in
detail with reference to the accompanying drawings. Regarding the
reference numerals assigned to the elements in the drawings, it
should be noted that the same elements will be designated by the
same reference numerals, wherever possible, even though they are
shown in different drawings. Also, in the description of
embodiments, detailed description of well-known related structures
or functions will be omitted when it is deemed that such
description will cause ambiguous interpretation of the present
disclosure.
[0053] In addition, terms such as first, second, A, B, (a), (b),
and the like may be used herein to describe components. Each of
these terminologies is not used to define an essence, order or
sequence of a corresponding component but used merely to
distinguish the corresponding component from other component(s). It
should be noted that if it is described in the specification that
one component is "connected", "coupled", or "joined" to another
component, a third component may be "connected", "coupled", and
"joined" between the first and second components, although the
first component may be directly connected, coupled or joined to the
second component.
[0054] The same name may be used to describe an element included in
the example embodiments described above and an element having a
common function. Unless otherwise mentioned, the descriptions on
the example embodiments may be applicable to the following example
embodiments and thus, duplicated descriptions will be omitted for
conciseness.
[0055] FIG. 1 illustrating an example of using a cardiopulmonary
resuscitation (CPR) training system according to an example
embodiment.
[0056] Referring to FIG. 1, a CPR training system 1 may analyze a
CPR training action performed by a user U in real time and provide
an analysis result to the user U, thereby improving a CPR training
level of the user U. For example, the CPR training system 1 may
provide a result with respect to a CPR performance state in real
time based on CPR action information related to a CPR action
performed by the user U and provide an evaluation based on a
performance result, thereby enabling the user U to intuitively
verify a CPR performance level. The CPR training system 1 may
include a CPR training apparatus 10, a communicator 150 and an
evaluation apparatus 20.
[0057] The CPR training apparatus 10 may be used for CPR training
of the user U.
[0058] FIG. 2 is a top view of a CPR training apparatus according
to an example embodiment, FIG. 3 is a see-through top view of the
CPR training apparatus according to an example embodiment, FIG. 4
is a side cross-sectional view of the CPR training apparatus
according to an example embodiment, FIG. 5 is a view illustrating a
display according to an example embodiment, FIG. 6 is a block
diagram of the CPR training apparatus according to an example
embodiment, FIG. 7 illustrates an operation of the CPR training
apparatus according to an example embodiment, FIG. 8 illustrates a
position of chest compression performed on the CPR training
apparatus according to an example embodiment, and FIG. 9
illustrates an operating process of a tilt detecting sensor with
respect to the position of chest compression of FIG. 8.
[0059] Referring to FIGS. 2 through 4, the CPR training apparatus
10 may include a mannequin 100, a compression portion 110, an
airbag 120, a measurer 140 and a display 130.
[0060] The mannequin 100 may be formed like a human body such that
a user may experience a feeling like performing CPR on a real human
body. For example, the mannequin 100 may have a shape similar to a
standard body shape of a human and include a skin of a silicon or
urethan material to have a skin texture similar to an elasticity of
a real skin. The mannequin 100 may be formed of a
light-transmissive material, thereby enabling light emitted by the
display 130, which will be described later, to be recognized
outside. The mannequin 100 may include a head portion 101 and a
body portion 102.
[0061] The head portion 101 may include an airway 1013 through
which artificial ventilation may be performed. For example, the
head portion 101 may include a mouth with an oral cavity 1011 and a
nose with a nasal cavity 1012. The oral cavity 1011 and the nasal
cavity 1012 may communicate with each other, thereby forming the
airway 1013 in the head portion 101. The airway 1013 may extend to
a chin of the head portion 101 and be connected to the airbag 120,
which will be described later. An extension of the airway 1013 may
include a valve which is opened only when a predetermined or higher
pressure is applied. By the above structure, in a case of
performing artificial ventilation through the oral cavity 1011, air
injected into the airway 1013 may leak through the nasal cavity
1012. Thus, in a case in which the user performs artificial
ventilation, the user may be induced to perform artificial
ventilation while closing the nasal cavity 1012.
[0062] The head portion 101 may realize a joint motion similar to
that of a human body. For example, the head portion 101 may be back
and forth rotatably connected to the body portion 102. That is, the
head portion 101 may be tilted by the user back and forth with
respect to the body portion 102. In this example, only when the
head portion 101 is tilted back with respect to the body portion
102, the airway 1013 may be opened such that the air injected into
the airway 1013 may move into the airbag 120. As a result, the CPR
training apparatus 10 may induce the user to open the airway 1013
by tilting the head portion 101 and perform artificial ventilation
when the user performs CPR.
[0063] The body portion 102 may be formed to have an appearance
similar to an upper body of a human. For example, the body portion
102 may include a xiphoid process, ribs, and nipples on an outer
surface thereof. By the above structure, in a case in which the
user performs a chest compression on the body portion 102, the user
may verify an exact position for the chest compression through the
outer surface of the body portion 102.
[0064] The compression portion 110 may be provided in the body
portion 102 such that the user may perform a chest compression
action on the body portion 102. The compression portion 110 may
include a compression plate 111, an elastic body 115, a tilt
detecting sensor 112 and a position detecting sensor 114.
[0065] The compression plate 111 may be disposed in the body
portion 102 to be pressed in response to the chest compression
performed on the body portion 102. The compression plate 111 may
perform a function similar to that of ribs of a human body. For
example, the compression plate 111 may be pressed in a direction of
a rear surface of the body portion 102, that is, toward a back of
the body portion 102, in response to the chest compression or
artificial ventilation performed on a mannequin.
[0066] The elastic body 115 may provide a restoring force to return
the compression plate 111 to its original position. The elastic
body 115 may be disposed between the rear surface of the body
portion 102 and the compression plate 111, and store elastic energy
(potential energy) in response to the chest compression applied to
the compression plate 111. The elastic body 115 may apply the
energy to the compression plate 111 such that the compression plate
111 may be pressed in a direction of a front surface of the body
portion 102, thereby returning the compression plate 111 to its
original position with respect to the body portion 102. By the
above structure, when the chest compression on the body portion 102
is released, the compression plate 111 may be returned to its
original position by the elastic body 115. Thus, the user may
repeatedly perform the chest compression action on the body portion
102.
[0067] The tilt detecting sensor 112 may detect a change in a tilt
of the compression plate 111 in response to the chest compression.
For example, based on a position of the chest compression performed
by the user with respect to the body portion 102, a compression
position of the compression plate 111 may be changed. In this
example, the tilt of the compression plate 111 with respect to the
body portion 102 may be changed based on the compression position.
The tilt detecting sensor 112 may be disposed at a predetermined
position on the compression plate 111, and detect the change in the
tilt of the compression plate 111 in response to the chest
compression, thereby obtaining information related to the position
of the chest compression performed on the body portion 102. Tilt
change information of the compression plate 111 obtained by the
tilt detecting sensor 112 may be transmitted to the measurer 140,
which will be described later. The tilt detecting sensor 112 may be
disposed at a center of the compression plate 111 which has a
bilateral symmetry as in FIG. 3. However, example embodiments are
not limited thereto, and an arrangement position of the tilt
detecting sensor 112 with respect to the compression plate 111 is
not limited thereto.
[0068] The position detecting sensor 114 may detect a change in the
position of the compression plate 111 with respect to the body
portion 102. For example, based on a depth of the chest compression
performed by the user with respect to the body portion 102, a
compression level of the compression plate 111 with respect to the
body portion 102 may be changed. As an intensity of the chest
compression is relatively great, the compression plate 111 may move
relatively further in a direction of the rear surface of the body
portion 102, that is, the back of the body portion 102. Thus, the
position detecting sensor 114 may measure a change in a relative
position of the compression plate 111 with respect to the body
portion 102. That is, the position detecting sensor 114 may measure
a compression depth of the compression plate 111 that is changed
based on the depth of the chest compression. The position detecting
sensor 114 may be, for example, a displacement sensor that measures
a distance between the compression plate 111 and the rear surface
of the body portion 102. However, a type and a position detecting
scheme of the position detecting sensor 114 are not limited
thereto. Various sensors capable of measuring a change in the
relative position of the compression plate 111 with respect to the
body portion 102 may be applied to the position detecting sensor
114.
[0069] The compression portion 110 may include a clicker that
operates to produce a sound when the compression plate 111 is
pressed deeper than a predetermined depth. For example, the
compression plate 111 may include a contact protrusion protruding
in a direction of the rear surface of the body portion 102, and the
clicker that operates when in contact with the contact protrusion
may be disposed in an inner rear surface of the body portion 102.
When the compression plate 111 is pressed deeper than the
predetermined depth, the clicker may be in contact with the contact
protrusion and produce a sound. By the above structure, an
operation of the clicker may intuitively indicate that the user is
performing the chest compression excessively.
[0070] The airbag 120 may be connected to the airway 1013 such that
artificial ventilation on the mannequin may be enabled. The airbag
120 may store the air injected by the user through the airway 1013
such that a volume thereof may be changed. The airbag 120 may be
disposed between the compression plate 111 and the body portion
102. For example, as shown in FIG. 4, the airbag 120 may be
disposed between the compression plate 111 and an inner front
surface of the body portion 102. The airbag 120 may be inflated as
the air is injected through the airway 1013 such that a distance
between the front surface of the body portion 102 and the
compression plate 111 may increase. The airbag 120 may be pressed
and discharge the air in response to the chest compression being
performed such that the distance between the front surface of the
body portion 102 and the compression plate 111 may decrease. Thus,
the airbag 120 may realize a thoracic motion of a human body in
response to the performance of CPR.
[0071] The measurer 140 may measure performance states of the chest
compression and the artificial ventilation performed on the CPR
training apparatus 10. For example, the measurer 140 may measure
the chest compression performance state of the user in real time
based on data measured at the compression portion 110. The measurer
140 may measure the position of the chest compression performed on
the body portion 102 based on a change in the tilt of the
compression plate 111 measured by the tilt detecting sensor 112,
and measure the depth and the rate of the chest compression
performed on the body portion 102 through the position detecting
sensor 114. For example, the measurer 140 may set values
corresponding to the tilt of the compression plate 111 and the
relative position of the compression plate 111 with respect to the
body portion 102, and include a database related to the position of
the chest compression based on the set values. The measurer 140 may
correct the tilt of the compression plate 111 measured by the tilt
detecting sensor 112 based on a value measured by the position
detecting sensor 114, and compare the corrected value to the
database related to the position of the chest compression, thereby
measuring the position of the chest compression performed by the
user with respect to the body portion 102.
[0072] The measurer 140 may measure the performance state of the
artificial ventilation performed by the user through the airway
1013 based on a change in the volume of the airbag 120. For
example, the measurer 140 may measure an amount and a flow rate of
the air injected into the airbag 120 through the artificial
ventilation based on information related to a change in the
distance between the compression plate 111 and the body portion 102
that changes in response to the change in the volume of the airbag
120. In this example, a magnetic field sensor 113 and a magnetic
substance 1131 may be provided on the compression plate 111 and the
front surface of the body portion 102, respectively. When a
distance between the magnetic field sensor 113 and the magnetic
substance 1131 changes in response to the change in the volume of
the airbag 120, a strength of a magnetic field detected by the
magnetic field sensor 113 may change, and thus the measurer 140 may
measure a degree and a rate of the change in the volume of the
airbag 120 based on a variance in the strength of the magnetic
field.
[0073] The display 130 may display the CPR performance state for
the user. For example, the display 130 may display a virtual blood
movement corresponding to the CPR performance state measured by the
measurer 140, thereby enabling the user to intuitively recognize a
CPR performance level.
[0074] Referring to FIG. 5, the display 130 may display the virtual
blood movement corresponding to the CPR performance state measured
by the measurer 140 through a light emitting line including a
plurality of light emitting diodes (LEDs). For example, the
plurality of LEDs may have light emitting intensities, light
emitting colors, and flickering rates that change based on the CPR
performance state, thereby displaying the CPR performance state for
the user in real time.
[0075] The light emitting line may include a compression depth
displaying line 131 that displays a virtual cardiac output in
response to CPR, and a blood circulation displaying line that
displays a virtual blood circulation.
[0076] The compression depth displaying line 131 may be disposed to
extend from a chest of the body portion 102 to both shoulders of
the body portion 102. For example, the compression depth displaying
line 131 may be provided on the compression plate 111. The LEDs of
the compression depth displaying line 131 may sequentially emit
light in a direction from the chest to the shoulders of the body
portion 102 based on a measured compression depth of the
compression plate 111, thereby displaying whether the user is
performing the chest compression to an adequate depth in real time.
Thus, the user may intuitively recognize whether the chest
compression action is being performed to a correct depth through
the light emitting intensity of the compression depth displaying
line 131.
[0077] The blood circulation displaying line may emit light
sequentially in an order of a first circulation line 132a, 133a, a
normal circulation displaying line 134 and a second circulation
line 132b, 133b, in response to the chest compression action
performed on the body portion 102. The blood circulation displaying
line may display a blood circulation process of a human body
corresponding to the chest compression action for the user. In this
example, the first circulation line 132a and the second circulation
line 132b may display a virtual blood movement corresponding to the
chest compression action of the user through the flickering rates
of the LEDs disposed in succession.
[0078] Meanwhile, the blood circulation displaying line may operate
such that the first circulation line 132a, 133a and the second
circulation line 132b, 133b may emit light sequentially in a
direction from the body portion 102 to the head portion 101 in
response to the chest compression performed by the user. However,
the above scheme of controlling light emission of the blood
circulation displaying line is merely an example. A light emitting
position and a sequential light emitting direction of each LED of
the blood circulation displaying line may vary.
[0079] The normal circulation displaying line 134 may emit light of
different colors based on a level of the chest compression
performed on the body portion 102. For example, the normal
circulation displaying line 134 may operate such that red LEDs emit
light when the rate and the compression level of the chest
compression are less than set reference values, green LEDs emit
light when the rate and the compression level of the chest
compression reach the set reference values, and yellow LEDs emit
light when the chest compression is performed excessively with the
rate and the compression level exceeding the set reference values.
However, the colors of the light emitted through the LEDs in
response to the chest compression being performed are merely an
example. Various schemes of providing the user with the chest
compression performance state may be applied to the normal
circulation displaying line 134.
[0080] Referring to FIG. 6, the measurer 140 may obtain information
related to the CPR action performed by the user from the
information obtained through the tilt detecting sensor 112, the
position detecting sensor 114 and the magnetic field sensor 113.
The communicator 150 may transmit the information measured by the
measurer 140 to an external server.
[0081] The external server may be, for example, an evaluation
apparatus capable of receiving a CPR performance result measured by
the measurer 140, or a personal terminal of the user.
[0082] For example, the evaluation apparatus may include at least
one of a smartphone, a tablet personal computer (PC), a mobile
phone, a video phone, an e-book reader, a desktop PC, a laptop PC,
a netbook computer, a personal digital assistant (PDA), a portable
multimedia player (PMP), an MP3 player, a mobile medical device, a
camera, or a wearable device (for example, a head-mounted-device
(HMD) like electronic glasses, electronic cloth, an electronic
bracelet, an electronic necklace, an electronic appcessory, an
electronic tattoo or a smart watch).
[0083] The evaluation apparatus 20 may analyze the CPR performance
state of the user based on the information received from the
communicator 150, and provide the analyzed CPR performance state to
the user in real time. When the user completes CPR training, the
evaluation apparatus 20 may evaluate the CPR performance result of
the user and provide the evaluated result to the user.
[0084] Referring to FIG. 7, the CPR training apparatus 10 may
induce an action of the user such that the user may experience a
feeling like performing artificial ventilation on a real human
body.
[0085] Only when the head portion 101 is tilted back with respect
to the body portion 102, the airway 1013 may be opened such that
the air may be injected into the airbag 120 in response to the
artificial ventilation. For example, in a case in which the user
does not tilt the head portion 101 back with respect to the body
portion 102, a chin of the head portion 101 may press a tube
connecting the airbag 120 and the airway 1013 such that the air may
not be injected into the airbag 120 in response to the artificial
ventilation. By the above structure, the CPR training apparatus 10
may induce the user to perform an action of opening the airway 1013
in the mannequin 100 when the user performs the artificial
ventilation.
[0086] In response to the artificial ventilation being performed
after the airway 1013 is opened, the air injected into the airway
1013 may move into the airbag 120 and inflate the airbag 120. When
the airbag 120 is inflated, the airbag 120 may press the
compression plate 111 toward the rear surface of the body portion
102 and simultaneously press the chest of the body portion 102
forward. Thus, the CPR training apparatus 10 may produce an effect
of the chest inflating like a real movement of a human body when
the artificial ventilation is performed.
[0087] When the airbag 120 is inflated, the distance between the
front surface of the body portion 102 and the compression plate 111
may be changed. That is, the distance between the front surface of
the body portion 102 and the compression plate 111 may increase. In
this example, the magnetic field sensor 113 and the magnetic
substance 1131 may be provided on the compression plate 111 and the
front surface of the body portion 102, respectively. However, on
the contrary, the magnetic substance 1131 may be disposed on the
compression plate 111 and the magnetic field sensor 113 may be
disposed on the front surface of the body portion 102. When the
distance between the compression plate 111 and the front surface of
the body portion 102 is changed, a strength of a magnetic field
measured by the magnetic field sensor 113 may be changed, and thus
the measurer 140 may obtain information such as an amount and an
injection rate of the air injected into the airbag 120 based on a
value measured by the magnetic field sensor 113.
[0088] Referring to FIGS. 8 and 9, the CPR training apparatus 10
may detect the position of the chest compression of the user
through the tilt detecting sensor 112. Based on the position of the
chest compression performed on the body portion 102 as shown in
FIG. 8, the tilt of the compression plate 111 may be changed as
shown in FIG. 9. For example, in a case of pressing a left side and
a right side of the compression plate 111 when compared to a case
of pressing a center of the compression plate 111, the compression
plate 111 may be tilted at angles of .theta.2 and .theta.3,
respectively. As a distance between the compression position and
the center of the compression plate 111 increases, a variance in
the tilt of the compression plate 111 may increase. Further, as the
compression level of the compression plate 111 increases, the
variance in the tilt of the compression plate 111 may increase.
Thus, the tilt detecting sensor 112 may detect the variance in the
tilt of the compression plate 111, thereby detecting information
related to the chest compression action performed by the user.
[0089] The measurer 140 may measure the position of the chest
compression performed by the user with respect to the body portion
102 based on the variance in the tilt of the compression plate 111
detected by the tilt detecting sensor 112. Since the variance in
the tilt of the compression plate 111 may be changed based on an
intensity of the chest compression performed by the user, the
measurer 140 may correct the tilt value of the compression plate
111 detected through the tilt detecting sensor 112 with a variance
in the position of the compression plate 111 detected through the
position detecting sensor 114, thereby obtaining the accurate
position of the chest compression performed on the body portion
102.
[0090] FIG. 10 is a flowchart illustrating an operation of a
measurer according to an example embodiment.
[0091] Referring to FIG. 10, a CPR training apparatus may operate
through an operation of measuring a tilt through a tilt detecting
sensor, an operation of comparing the measured tilt to a reference
value, and an operation of detecting a position of chest
compression.
[0092] In operation 1010, the measurer may obtain a variance in a
tilt of a compression plate through a tilt detecting sensor. The
variance in the tilt of the compression plate measured through the
tilt detecting sensor may be provided to the measurer. The measurer
may simultaneously obtain the variance in the tilt of the
compression plate through a position detecting sensor.
[0093] In operation 1020, the measurer may compare the measured
tilt to a set reference value. For example, the reference value may
be a database including values determined based on positions of
chest compressions applied to a body portion. The database may
include information related to the positions of the chest
compressions with respect to the body portion, which is determined
based on a change in a distance between the body portion and the
compression plate and the tilt of the compression plate.
[0094] The measurer may obtain matching reference values by
comparing the detected tilt value of the compression plate and the
relative distance value of the compression plate with respect to
the body portion to the database.
[0095] In operation 1030, the measurer may detect an expected
position of the chest compression of the user based on the obtained
reference values.
[0096] Hereinafter, a method of evaluating a CPR performance state
of the user performing CPR through the CPR training apparatus will
be described. The CPR training evaluation method may be performed
by an evaluation apparatus. An application interoperating with the
CPR training apparatus may be installed in the evaluation
apparatus. Meanwhile, the CPR training evaluation method may be
performed by the evaluation apparatus. However, a subject
performing the CPR training evaluation method is not limited
thereto. That is, any apparatus capable of executing at least one
program including instructions to perform the CPR training
evaluation method may be the subject performing the CPR training
evaluation method.
[0097] FIG. 11 is a flowchart illustrating a CPR training
evaluation method according to an example embodiment, FIG. 12 is a
flowchart illustrating an example of providing a CPR performance
state according to an example embodiment, FIG. 13 is a flowchart
illustrating an example of index conversion according to an example
embodiment, FIG. 14 illustrates an example of a CPR performance
state provided through the CPR training evaluation method according
to an example embodiment, FIG. 15 illustrates an example of a chest
compression performance state index provided through the CPR
training evaluation method according to an example embodiment, FIG.
16 illustrates an example of an artificial ventilation performance
state index provided through the CPR training evaluation method
according to an example embodiment, FIG. 17 illustrates an example
of an artificial ventilation performance state index provided
through the CPR training evaluation method according to an example
embodiment, and FIG. 18 illustrates an example of a chest
compression distribution map provided through the CPR training
evaluation method according to an example embodiment.
[0098] Referring to FIGS. 11 through 18, a CPR training evaluation
method may evaluate an action performed by a user on a CPR training
apparatus.
[0099] As shown in FIG. 11, the CPR training evaluation method may
include operation 1110 of obtaining CPR action information,
operation 1120 of providing a CPR performance state and operation
1130 of evaluating a CPR performance result.
[0100] In operation 1110, CPR action information related to a CPR
action performed by a user on a CPR training apparatus may be
obtained. Operation 1110 may include an operation of obtaining
chest compression action information related to a chest compression
action performed by the user on the CPR training apparatus and an
operation of obtaining artificial ventilation action information
related to an artificial ventilation action performed by the user
on the CPR training apparatus. The chest compression action
information may include information related to a position, a depth,
a count, a rate, a frequency, and a hand-off interval of the chest
compression performed by the user with respect to the CPR training
apparatus. The artificial ventilation action information may
include information related to an amount, a flow rate, an injection
count, and an injection interval of air injected into the CPR
training apparatus.
[0101] In operation 1120, a CPR performance state of the user may
be monitored in real time based on the obtained action
information.
[0102] As shown in FIG. 12, operation 1120 may include operation
1210 of quantifying the obtained action information, operation 1220
of classifying the quantified action information for each set item,
and operation 1230 of converting the quantified action information
into an index with respect to the CPR performance state and
providing the index to the user.
[0103] In operation 1210, CPR action information related to a CPR
action performed by a user may be quantified. For example, in
operation 1210, an analog signal corresponding to the action being
performed may be converted into a digital signal.
[0104] In operation 1220, the quantified action information may be
classified for each set item. Classification items with respect to
the action information may be changed based on a set condition. The
classification items may include information, for example, a
position of chest compression performed by the user on a CPR
training apparatus, a depth of the chest compression, a rate of the
chest compression, a count of the chest compression, a releasing
level of the chest compression, a flow rate of air injected into
the CPR training apparatus, an amount of artificial ventilation, a
frequency of the artificial ventilation, and a count of the
artificial ventilation. However, example embodiments are not
limited thereto, and the classification items are not limited
thereto.
[0105] In operation 1230, the quantified action information may be
converted into an index with respect to the CPR performance state
and provided to the user. In operation 1230, the index with respect
to the CPR performance state may be generated using various
schemes.
[0106] For example, as shown in FIG. 13, operation 1230 may include
operation 1310 of recognizing a cycle, operation 1320 of converting
operation information related to an operation performed in each
cycle into an index, and operation 1330 of cumulatively providing
the converted index.
[0107] In operation 1310, chest compression and artificial
ventilation action information related to chest compression and
artificial ventilation actions performed by the user on the CPR
training apparatus may be obtained in real time, and a cycle for
performing CPR may be recognized. The cycle may be recognized when
the obtained CPR action information satisfies a preset condition.
In general, CPR is performed through a series of actions, for
example, 30 chest compressions and two artificial ventilations, per
one cycle. Thus, in operation 1310, when artificial ventilation
actions are sensed after chest compression actions are sensed
through the CPR action information related to the CPR action
performed by the user, it may be recognized that the user has
performed one cycle of the CPR action. For example, the recognized
cycle may be displayed as a cycle performance index 1420, as shown
in FIG. 14.
[0108] In operation 1320, action information related to an action
performed in the cycle may be converted into an index with respect
to the CPR performance. In operation 1320, the action information
may be converted into the index based on a set condition. For
example, in operation 1320, a reference chest compression count for
each cycle may be set. In detail, in a case in which the reference
chest compression count for one cycle is set to "30", the obtained
chest compression action information may be converted into an index
with respect to a real chest compression count compared to the
reference chest compression count, and provided as a compression
count performance index 1410, in operation 1320.
[0109] Similarly, in operation 1320, a reference artificial
ventilation count for one cycle may be set. For example, in a case
in which the reference artificial ventilation count for one cycle
is set to "2", the obtained artificial ventilation action
information may be converted into an artificial ventilation
frequency index 1460 and provided to the user, in operation 1320.
However, example embodiments are not limited thereto, and the
condition set for each cycle may vary.
[0110] In operation 1320, the quantified action information may be
converted into a distribution map with respect to the depth and the
rate of the chest compression and provided. For example, in
operation 1320, a reference for the depth and the rate of the chest
compression may be set and the obtained chest compression action
information may be provided as an index displayed in a distribution
map 1470 such that the obtained chest compression action
information may be compared to the set reference. Thus, the user
may receive a feedback that enables the user to verify whether the
chest compression action performed by the user satisfies the set
condition in real time.
[0111] In operation 1330, the converted index may be displayed
cumulatively during the cycle. For example, in operation 1330, an
index 1430 with respect to a CPR performing time, the index 1410
with respect to the cumulative chest compression count, or the
index 1470 with respect to per-cycle compression record may be
displayed based on the obtained action information.
[0112] Operation 1230 may further include an operation of
initializing the converted index when the one cycle is terminated.
In this example, in operation 1230, when sequential actions of
chest compressions and artificial ventilations are performed again,
it may be recognized that the existing cycle is terminated, and a
new cycle is started. When a new cycle is started, the cumulative
index of the existing cycle may be initialized. Thus, the CPR
action performed by the user may be provided to the user separately
for each cycle.
[0113] In operation 1230, the classed action information may be
converted into a reach index with respect to a reference value of a
set database and provided. For example, in operation 1230, a
database with reference to a reference value for determining
whether the CPR is performed adequately may be set, and a value of
each action of the user may be converted into the reach index and
provided such that the value of each action of the user may be
compared to the reference value of the database. In detail, in
operation 1230, a reach index 1440 with respect to the chest
compression may be provided such that the user may verify whether
the user is performing the chest compression action correctly, a
reach index 1450 with respect to an amount of ventilation may be
provided such that the user may verify whether an amount of
ventilation in response to the artificial ventilation is adequate,
or a reach index 1480 with respect to a compression position such
that the user may verify whether the compression is performed at a
correct position. However, example embodiments are not limited
thereto. Various types of reference values and reach indices with
respect to each action of CPR performed by the user may be applied
thereto.
[0114] Indices with respect to the CPR performance state may be
displayed on a screen of a display D of the evaluation apparatus.
The indices may be displayed on the screen of the display D
simultaneously as shown in FIG. 14 or may be displayed separately.
Hereinafter, examples of indices indicating the CPR performance
state according to the CPR training evaluation method will be
described with reference to FIGS. 15 through 18.
[0115] As shown in FIG. 15, the reach index 1440 with respect to
chest compression may include a chest compression depth index 1510,
a chest compression release index 1520, a chest compression rate
index 1530, an optimal chest compression depth index 1540, an
excessive compression displaying index 1550, an excessive rate
displaying index 1560, and an optimal compression displaying index
1570.
[0116] The index 1510 may indicate a compression depth in response
to a chest compression action performed by the user in real time by
changing a gradation based on a depth of the chest compression. The
index 1520 may indicate whether an adequate release action is
performed during the chest compression. The index 1530 may indicate
whether a rate of the chest compression is less than a set
reference. The index 1540 may indicate whether the depth of the
chest compression satisfies a set reference. The index 1550 may
indicate whether the depth of the chest compression exceeds the
reference value. The index 1560 may indicate whether the rate of
the chest compression exceeds a set reference. The index 1570 may
indicate whether the depth and the rate of the chest compression
satisfy the set conditions at the same time. A scheme and condition
for providing the indices may be changed.
[0117] As shown in FIG. 16, the reach index 1450 with respect to
the amount of artificial ventilation may indicate whether an amount
of artificial ventilation performed by the user on the CPR training
apparatus is adequate. For example, in a case in which the amount
of artificial ventilation is insufficient, adequate, or excessive,
the reach index 1450 with respect to the amount of ventilation may
be changed as shown in each index 1610, 1620 or 1630, thereby
displaying whether the amount of artificial ventilation is adequate
in real time for the user.
[0118] As shown in FIG. 17, the index 1460 with respect to
artificial ventilation frequency may be displayed in a manner that
a gauge bar moves from an index 1710 to an index 1720 only when
artificial ventilations of a set count are performed, through a
count of artificial ventilations per one cycle performed by the
user. Thus, whether the user is performing artificial ventilations
at a correct frequency may be displayed in real time.
[0119] The index 1470 with respect to per-cycle compression record
as shown in FIG. 18 may cumulatively provide whether a chest
compression action performed by the user satisfies a set reference
rate and a set compression depth in real time. The indices may be
displayed separately to be distinguished from each other. For
example, in the index 1470, a chest compression action not
satisfying a reference may be indicated by an index 1810, and a
chest compression action satisfying the reference may be indicated
by an index 1820. Among indices with respect to chest compression
actions, a most recently performed chest compression action may be
indicated exaggeratively like an index 1830.
[0120] FIG. 19 is a flowchart illustrating an example of evaluating
a CPR performance result according to an example embodiment, FIG.
20 illustrates an example of a CPR performance result provided
through a CPR training evaluation method according to an example
embodiment, FIG. 21 illustrates an example of a CPR performance
result provided through the CPR training evaluation method
according to an example embodiment, FIG. 22 illustrates an example
of a CPR performance result provided through the CPR training
evaluation method according to an example embodiment, and FIG. 23
illustrates an example of a CPR performance result provided through
the CPR training evaluation method according to an example
embodiment.
[0121] Referring to FIG. 19, in operation 1130 of evaluating a CPR
performance result, an overall performance result with respect to
the performed CPR may be evaluated after the CPR training action of
the user is terminated. Operation 1130 may include operation 1910
of quantifying obtained action information, operation 1920 of
classifying the quantified action information for each set item,
operation 1930 of converting the classified action information for
each item by applying a weight for each item, and operation 1940 of
calculating a composite value with respect to the CPR performance
result.
[0122] In operation 1910, action information related to an action
performed by the user during the CPR training process may be
cumulatively quantified.
[0123] In operation 1920, the quantified action information may be
classified for each set item. For example, the action information
may be classified into items such as a depth of chest compression,
a releasing rate of chest compression, a rate of chest compression,
a position of chest compression, a count of chest compression, an
amount of artificial ventilation, and a frequency of artificial
ventilation. However, example embodiments are not limited thereto,
and the set items are not limited to the above examples.
[0124] In operation 1930, the classified action information may be
converted by applying a weight to the action information for each
set item. The weight may be set differently for each item. That is,
a relatively high weight may be applied to a relatively important
item among the plurality of items. For example, a higher weight may
be applied to the depth of chest compression than the rate of chest
compression.
[0125] In operation 1940, a composite value with respect to the CPR
performance result may be calculated based on the converted action
information for each item. For example, the composite value may be
calculated in a form of score. In a case in which a different
weight is applied to each item, the score of the composite value
may increase when an action of an item having a relatively high
weight is performed correctly.
[0126] Operation 1130 may further include an operation of selecting
one of a plurality of modes, before operation 1910 of quantifying
the obtained action information. For example, the plurality of
modes may be provided based on a number of users performing CPR and
conditions for a CPR target. In a case in which a single user
performs CPR and in a case in which two users perform CPR, each
user may perform a different CPR action on the CPR training
apparatus, and thus a CPR training evaluation condition may be
changed based on a corresponding mode.
[0127] Referring to FIG. 20, the CPR performance result may be
provided with a score index 2010 with respect to an overall result,
and a composite distribution chart 2020 with respective items. The
user may intuitively verify a detailed analysis on a result of CPR
performed by the user. The composite distribution chart 2020 may
display whether a value of each item of the CPR action performed by
the user reaches a reference value, thereby enabling the user to
intuitively recognize a weak point of the user when performing the
CPR action. The composite distribution chart 2020 may also display
a detailed evaluation 2040 for each item.
[0128] Referring to FIG. 21, the CPR performance result may be
provided in a form of time-course CPR performance graph 2110. The
CPR performance graph 2110 may sequentially display information
related to a series of actions performed by the user, for example,
a depth of chest compression, a rate of chest compression, and an
amount of artificial ventilation, as time passes.
[0129] Meanwhile, the CPR performance result may provide an
expected effect of a CPR action performed by the user with a CPR
effect progress graph 2120. The CPR effect progress graph 2120 may
display an expected effect of chest compression and artificial
ventilation actions performed by the user as time passes.
[0130] Further, the CPR performance result may display an action
performed during CPR training of the user with an event list 2130.
The event list 2130 may display whether an item required while
performing CPR has been performed, for example, whether an action
of checking responsiveness, an action of opening an airway, or an
action of using a defibrillator has been performed.
[0131] Referring to FIG. 22, the CPR performance result may provide
details of each item of a CPR action performed by the user. That
is, a performance result of each classified action item may be
provided separately. An evaluation on each action item may be
determined based on a set criterion.
[0132] Referring to FIG. 23, the CPR training evaluation method may
be performed concurrently through a plurality of CPR training
apparatuses. In a case in which a plurality of CPR training
apparatuses is provided, CPR actions performed on the respective
training apparatuses may be evaluated separately. In this example,
corresponding results may be provided through a single evaluation
apparatus such that the results may be compared to each other.
[0133] According to embodiments, a CPR training apparatus and a CPR
training evaluation method may display a CPR performance state of a
user in real time, thereby providing a prompt feedback to the
user.
[0134] According to embodiments, a CPR training apparatus and a CPR
training evaluation method may intuitively provide a user with a
CPR performance state based on a position and a depth of chest
compression, thereby improving a CPR training effect of the
user.
[0135] The effects of the CPR training apparatus and the CPR
training evaluation method are not limited to the aforementioned
effects and other effects not mentioned above will be clearly
understood by those skilled in the art from the above
description.
[0136] A number of example embodiments have been described above.
Nevertheless, it should be understood that various modifications
may be made to these example embodiments. For example, suitable
results may be achieved if the described techniques are performed
in a different order and/or if components in a described system,
architecture, device, or circuit are combined in a different manner
and/or replaced or supplemented by other components or their
equivalents. Accordingly, other implementations are within the
scope of the following claims.
* * * * *