Title: Programmable AED-CPR training device
Abstract: A portable, interactive electronic training device for prompting a trainee on the proper sequence of steps for performing CPR, using a defibrillator and performing CPR in conjunction with the use of a defibrillator. The device simulates the obtaining of direct information about a patient's condition, such as ECG data collected directly from the patient. The device receives information pertinent to the treatment of the patient indirectly through an operator of the device. The device prompts a trainee on the medically appropriate action such as a defibrillation shock in response to the indirect and direct information. Indirect information is obtained through information processing means that includes means for prompting the operator of the device and means for receiving the operator's responses thereto. Prompts may include both questions and instructions, and in one embodiment the information processing means obtains the assent of the operator before causing the defibrillation shock. Indirect information may include information as to whether the patient is conscious, whether the patient is an adult, baby or child, and as to whether or not cardiopulmonary resuscitation has been performed. The device also prompts the user on proper placement of training electrode pads upon a simulated victim's chest by prompting feedback to the trainee if the pads are not placed on the conductive targets located upon the simulated victim's chest.
Patent Number: 6,969,259 Issued on 11/29/2005 to Pastrick, et al.
| Inventors:
|
Pastrick; John J. (University Heights, OH);
Lindseth; Steven W. (Gates Mills, OH)
|
| Assignee:
|
Cardiac Science, Inc. (Irvine, CA)
|
| Appl. No.:
|
722864 |
| Filed:
|
November 26, 2003 |
| Current U.S. Class: |
434/265; 434/262; 607/5 |
| Intern'l Class: |
G09B 023/28 |
| Field of Search: |
434/118,262,265,307.R,365
607/5-8,30,60
|
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| |
| 5275572 | Jan., 1994 | Ungs et al.
| |
| 5490820 | Feb., 1996 | Schock et al.
| |
| 5549115 | Aug., 1996 | Morgan et al.
| |
| 5611815 | Mar., 1997 | Cole et al.
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| 5662690 | Sep., 1997 | Cole et al.
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| 5716380 | Feb., 1998 | Yerkovich et al.
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| 5853292 | Dec., 1998 | Eggert et al.
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| 5993219 | Nov., 1999 | Bishy.
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| 6021349 | Feb., 2000 | Arand et al.
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| 6074213 | Jun., 2000 | Hon.
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| 6108578 | Aug., 2000 | Bardy et al.
| |
| 6141584 | Oct., 2000 | Rockwell et al.
| |
| 6148233 | Nov., 2000 | Owen et al.
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| 6154673 | Nov., 2000 | Morgan et al.
| |
| 6263238 | Jul., 2001 | Brewer et al.
| |
| 6266562 | Jul., 2001 | Leyde.
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| 6321113 | Nov., 2001 | Parker et al.
| |
| 6334070 | Dec., 2001 | Nova et al.
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| |
Other References
"Laerdal AED Trainer—Directions for Use" of Laerdal Medical corporation
which is published prior 1996, 27 pages.
|
Primary Examiner: Cheng; Joe H.
Attorney, Agent or Firm: Patterson, Thuente, Skaar & Christensen, P.A.
Parent Case Text
PRIORITY CLAIM
This application is a divisional application of pending application Ser. No.
09/494,590 filed on Jan. 31, 2000 which is currently pending and which claims priority
to provisional patent application No. 60/117,727 filed on Jan. 29, 1999.
Claims
1. A programmable training device for instructing a user on the appropriate medical
steps for the operation of an automatic external defibrillator (AED) device, said
programmable training device comprising:
a processor;
a programmable control panel having two or more input devices for generating
a first and second training signal to the processor, each training signal representing
either a simulated shock cycle or a simulated no shock cycle; and
the processor further comprising control logic responsive to said first and second
signals for outputting a simulated shock sequence of said simulated shock cycle
or said simulated no shock cycle representative of said first and second signals.
2. The programmable training device of claim 1 further comprising a voice synthesizer.
3. The programmable training device of claim 1 further comprises light emitting diodes.
4. The programmable training device of claim 1, wherein said control panel further
comprises a refibrillator key, said refibrillator key generating an input signal
to said processor representing the programmable option of interrupting said simulated
no shock cycle and prompting the user that the simulated victim has a simulated
shockable rhythm,
said processor further comprising control logic responsive to said input signal
and interrupting said simulated no shock cycle and outputting the appropriate medial
steps for performing said simulated shock cycle.
5. The programmable training device of claim 1, wherein said control panel is
located on the training device.
6. The programmable training device of claim 1, wherein said input devices are
switches that toggle on or off.
7. A programmable training device for instructing a user on the appropriate medical
steps for the operation of an automated external defibrillator (AED) device, said
programmable training device comprising:
a processor;
a programmable control panel including two or more input devices for generating
a first and second training signal to said processor, each training signal representing
either a simulated shock cycle or a simulated no-shock cycle;
said programmable control panel further comprising two or more display indicators
which correspond to said two or more input devices, wherein each of said display
indicators display the programmed simulated shock/no-shock cycle of said corresponding
input device;
the processor further comprising control logic responsive to said first and second
signals, said control logic generating a simulated shock sequence of individual
simulated shock cycles and/or no-shock cycles; and
said indicators together displaying said programmed simulated shock sequence
of simulated shock/no-shock cycles.
8. The programmable training device of claim 7 wherein said display indicators
are light emitting diodes.
Description
FIELD OF THE INVENTION
The present invention pertains generally to a training device used to assist
a student operator in rescue procedures, and more particularly a hand-on training
device used to assist a student in learning cardiopulmonary resuscitation (CPR),
training instructions in the use of a defibrillator and rescue procedures such
as rescue breathing and choking procedures.
BACKGROUND OF THE INVENTION
It has been estimated that over 350,000 deaths occur each year in the United
States
due to cardiac arrhythmia. Many of these deaths could be prevented by rescue procedures
such as CPR and defibrillation by properly trained persons in rescue procedures.
Thus, there is a continuing need to provide training to the public and to medical
personnel in the proper treatment of a patient undergoing cardiac arrest or in
need of rescue procedures. In order to train a student properly in rescue techniques,
hands-on training aids such as manikins are often utilized. The disadvantage to
prior art training aids is that separate devices are often needed to provide the
full range of training. For example, CPR manikins and CPR prompting devices are
used in training students CPR, while real defibrillator devices are used as defibrillator
training aids. These devices can be quite costly. Further, the use of real defibrillator
devices in a training environment creates a possible danger of discharging an unintended
potent electric shock. Further, these type of devices in general only assist in
the instruction of the use of the defibrillator, and do not provide instruction
in the use of CPR or other rescue techniques such as rescue breathing. Still further
yet, these training devices generally assume that the patient is of a sufficient
age to receive shock treatment. In addition, prior art defibrillator and CPR training
devices generally do not instruct the trainee to check for a pulse after a victim
has received a shock treatment nor after a series of CPR compressions have been
given. Finally, these type of training devices do not teach the proper placement
of the paddles upon the patient.
These and other features and advantages of the invention will become apparent
in the detailed description and claims to follow, taken in conjunction with the
accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a CPR-AED training device shown in use with
a manikin according to the present invention;
FIG. 2 is a front view of the CPR-AED training device of FIG. 1 with the cover
plate removed and the electrodes withdrawn.
FIG. 3 is a rear view of the CPR-AED training device of FIG. 1 with the programmable
display panel in view.
FIG. 4 is a perspective view of a training electrode pad and cable shown with
a removable attachment clip for insertion onto the training electrode pads.
FIG. 5 is an enlarged perspective view of the removable attachment clip shown
in FIG. 4 which is shown installed on the training electrode pad.
FIG. 6 is a side view of the removable attachment clip shown in the direction
6—6 of FIG. 5.
FIG. 7 is an enlarged view of the removable attachment clip shown in the direction
7—7 of FIG. 6.
FIG. 8 is a bottom view of a training electrode pad with the target means shown
in phantom in several locations.
FIG. 9 is a block diagram of the CPR-AED training device of FIG. 1.
FIGS. 10-12 are logic diagrams of the CPR-AED training device in the CPR ONLY
Mode, the AED MODE, and the CPR-AED Mode.
FIGS. 13-15 are program control logic diagrams of the prompting sequences of
the CPR-AED training device in CPR Mode, AED Mode, and CPR-AED Mode, respectively.
DETAILED DESCRIPTION OF THE INVENTION
Mechanical System
Referring initially to FIGS. 1-3, a CPR-AED training device
10 of
the present invention is shown. The device
10 prompts trainees with instructions
on the proper sequence of steps of CPR and defibrillation in a non-emergency setting,
with input information from the trainee to the device
10. With respect to
the defibrillation prompting, the device
10 allows a trainee to evaluate
simulated patient electrocardiogram (ECG) signals and perform simulated defibrillation
with or without CPR prompting. As shown in FIG. 1, the device
10 may be
used alone or in conjunction with a manikin
100 or other means for simulating
a victim. The CPR-AED training device
10 comprises a body
12 having
a front panel
14 and a rear panel
16, a cover plate
18, and
carrying handle
20. The training device
10 further comprises an audio
speaker
30 with volume control (not shown) for audibly prompting a trainee
in rescue operations. The cover plate
18 is slidably mounted within grooves
(not shown) of the body
12 of the training device and may be used to cover
and protect the device CPR keypad
40. The CPR keypad
40 comprises
a plurality of interactive key switches which are operative in the CPR mode
74
and are used by the trainee to provide feedback to the device
10 of the
simulated victim's condition. The CPR keypad
40 includes an adult key
41,
a baby key
42 and a child key
43 used by trainee to provide feedback
to the device
10 of the victim's age. Additionally, the keypad
40
comprises a Heimlich maneuver labeled key "1"
44 used when victim is conscious
and choking, and an abdominal thrust key "2"
45 utilized when the victim
is unconscious with a blocked airway. Key "3" labeled Rescue breathing
46
is used when victim has a pulse but is unconscious, while key
4 47
labeled "CPR" is used when victim has been assessed by the trainee to be unconscious
with no pulse or breathing. The CPR keypad
40 further comprises an off switch
48 which will switch off the device, and the pause key
49 which will
pause the algorithm. The off switch is operative in all three modes, while the
pause key is only active in both mode
76 and CPR mode
74. Finally,
each of the keys (except the off key) on keypad has its own LED indicator light
to indicate when the key has been activated by the trainee.
The front panel
14 further comprises an AED keypad
50 comprising
an AED POWER switch
52, an ANALYZE switch
54, and a SHOCK switch
56. Each AED switch
52-
56 has its own LED indicating light
58-
62 to indicated that the switch has been activated when lit. In
addition, the front panel of the device
10 further comprises a Select Prompting
Mode switch
70 for allowing the trainee to select only defibrillation mode
denoted as "AED" as mode
72 the CPR mode
74, or both CPR and AED
prompts denoted as "Both"
76.
As shown in FIG. 3, the rear panel
16 of the device
10 comprises
a power source
80 such as a battery pack and a Shock Sequence keypad
90.
The Shock Sequence keypad
90 is used by the trainee or instructor to program
the sequences of shockable and non-shockable simulated heart rhythms when in the
AED mode
72 or CPR-AED mode
76, as explained in more detail below.
As shown in FIGS. 1 and 2, the front panel of the device
10 also comprises
a plug receptacle
110 for receiving the plug end
112 of electrode
cables
114. The plug end
112 of the electrode cables has a built
in jumper (not shown) in order to indicate continuity of the plug connection when
it is properly installed within receptacle
110. If not, trainee will be
prompted to install the cable until the trainee has successfully plugged the electrode
cable
114 into its receptacle
110-
114.
The opposite ends of the electrode cables
114 all connected to disposable
electrode pads
120 via an electrode clip
140. The disposable electrode
pads
120 are simulated defibrillator pads and are to be inserted into the
electrode clip
140 and then mounted by the trainee upon a simulated victim's
chest as explained in more detail, below. The electrode clip
140 as best
shown in FIGS. 4-6, comprises two main components made of any suitable non-conductive
material such as plastic. The first main component of the electrode clip
140
is the housing
142 which has a first and second mating member
144,
146,
which together form a slot
148 for receiving an electrode training pad
120
therein. The first and second mating members
144,
146 are connected
together by a screw
150 or other connecting means. The second main component
of the clip
140 is the securing means
160 which secures the electrode
training pads
120 to the clip
140. The securing means
160
comprises a first and second arm
162 rotatably mounted to the clip housing
142, and a planar surface
164 with a tabular extension
166
for easy opening and closing of the clip securing means
160 to the housing
142. The inner surface of the tabular extension
166 has two spaced
prongs
168 aligned for insertion into holes
169 of the first and
second mating members
144,
146 and holes
122 of the electrode
pads
120.
Each electrode-training pad
120 is disposable and comprises an upper
surface layer
123, a lower adhesive layer
124, and a conductive layer
126. The upper surface layer
123 of the training pad comprises a
flexible plastic or foam material. The upper surface layer
123 of each training
pad
120 is color coded with a graphic design
128 on the front surface
layer
123 of the pads which illustrates the proper placement upon a victim's
chest. The design further includes the number 1 or 2 that indicates the proper
sequence of placement of the pads
120 upon the simulated victim's chest.
The lower adhesive layer
124 of the electrode pads
120 has a removable
protective liner
130 which is peeled away by the trainee prior to installation
upon the simulated victim. The outer conductive layer
126 is adhered to
the lower adhesive layer
124, and is formed of a thin plastic having a metallic
or conductive substrate bonded thereto. The outer conductive layer
126 of
each electrode training pad
120 acts as a built in sensor means which generates
an output signal to the device
10 when the training pad is properly connected
to the electrode clip
140 and placed in contact with a conductive target
means
170. The conductive target means
170 is preferably an adhesive
disc having an outer conductive layer such as metal. The conductive target means
170 are mounted upon a simulated victim's chest in the upper right chest
and lower left rib position for defibrillation.
The sensor means
126 of the electrode training pad
120 as shown
in FIG. 4 in phantom, has a first and second conductive path
132,
134
respectively, with said second conductive path
134 preferably being located
within the interior of said first conductive path
132, without touching
said first conductive path
132. Preferably, each of said paths have an elongated
rectangular shape, although other shapes would work for the invention. When the
electrode pad
120 is received within the slot of the clip
160, the
first and second conductive paths
132,
134 of the sensor means
126
contact a first and second conducting strip
136,
138 mounted upon
the interior surface of the first mounting member
144 of the clip housing
142. The first and second conducting strip
136,
138 is soldered
to a first and second wire of the electrode cable
114 which has been inserted
into the rear end of the clip housing
142.
Thus in order for the trainee to secure the removable electrode pads
120
to the clips
140, the holes
122 of the electrode training pad
120
are inserted through the slot
148 of the clip
140 such that the holes
122 and
169 are aligned. Then the clip securing means
160
is rotated into position such that the prongs
168 are inserted into the
aligned holes
122 and
169, such that the first and second conducting
strip
136,
138 of the first mating member of the clip
140 contact
with the conductive layer
126 of the electrode pads
120. After notched
receiving end of the electrode pad
120 is inserted into the slot
148,
the securing means
160 of the clip
140 is snapped into place such
that the prongs
168 are inserted through holes
169 and
122
of the members and the electrode pad, respectively. When the trainee properly mounts
each of the electrode pads within its clip
160 and properly places each
electrode training pad
120 over its respective target means
170 on
the simulated victim's chest, the target means
170 shorts or completes the
circuit formed by the first and second conductive paths
132,
134.
When the circuit is closed, a small current is generated by the device
10
through the first conducting strip
136 and the first conductive path
132,
through the target means
170 and then back to the device through the second
conductive path
134 and the strip
138, thus indicating that the electrode
training pad
120 has been properly placed upon the target
170. Each
electrode training pad
120 must be properly placed over its conductive target
170, else the trainee will be continually prompted to "PLACE PADS ON VICTIMS
BARE CHEST" until the operation is performed correctly for each pad
120.
The trainee will continually be voice prompted until the sequence of operations
has been correctly performed.
In an alternative embodiment of the invention, a reed switch is utilized as the
sensing means in each disposable electrode pads. A reed switch may be attached
to the outer surface layer of each electrode pad or mounted within the pad. The
reed switch is used to sense when the pads are in close proximity to a target means
having a magnet or magnetized surface. The target means are mounted in the proper
area of a victim's chest for defibrillation. Alternatively, a magnet may be mounted
upon the electrode pads and the reed switched mounted on the simulated victim's
chest. When the reed switch is in close proximity to the target means, the reed
switch generates an electric signal which is communicated to the device
10,
and the trainee will no longer be prompted to "PLACE PADS ON VICTIM'S BARE CHEST".
Electrical System
There is shown in FIG. 9, a block diagram illustrating the logical arrangement
of a system
200 according to the invention. The invention includes a first
and second electronic input device, which is preferably keypads
18 and
50
or other keying means. The invention also includes multiple button switches and
LED indicator lights. An energy source
210 such as battery pack provides
power to the system. The training device further comprises a central processing
unit
220, memory
230 (ROM), and a speech synthesizer unit or chip
240. The speech synthesizer unit
240 is in electrical communication
with an amplifier
250, and a speaker
260. The speech chip
280
may comprise any chip which furnishes understandable speech suitable for use in
the invention. The speech synthesizer unit or chip
240 converts digital
data stored in ROM and converts it to analog data.
Operation of the Device
In order to begin operation of the AED-CPR training device
10, the trainee
first selects the desired training mode using the Prompting Mode switch
70.
The AED-CPR training device
10 has three different training modes denoted
as: "AED", "BOTH", and "CPR". If the AED mode is selected, the training device
10 will only provide training prompts that simulate the operation of an
actual defibrillator device. The device
10 will first simulate the collection
of patient ECG data, then simulate the analyzing of the ECG data by the training
device and then the delivery of a simulated electrical pulse to a simulated patient
in response to actuation by the trainee. No actual electrical pulse is delivered.
If the CPR mode is selected by the trainee, the training device
10 will
provide detailed training prompts for the proper sequence of CPR rescue steps.
If the "BOTH" mode is selected, the device
10 will provide the trainee with
CPR and AED prompts. The operation of these three modes is described in more detail, below.
AED Mode
If the trainee selects the AED mode by setting the Prompting Mode switch
70
to the "AED" position, the CPR panel
40 is deactivated and the AED panel
50 is activated. The AED mode has three programmable modes for the ANALYZE
key. The ANALYZE key may be programmed using the Shock Sequence keypad
90
to toggle key
111 to simulate a manual defibrillator, a semi-automatic defibrillator
or an automatic defibrillator. The programming steps are described in more detail, below.
As illustrated in FIGS. 12 & 13, the simulation of a manual defibrillator in
AED
mode
72 is described as follows. The trainee must press the "AED" switch
52 in order to begin. The trainee is then prompted by the device to place
the training electrode pads
120 on the simulated victim's bare chest, with
pad "1" to be placed on victim's upper right chest and pad "2" to be positioned
on victim's lower left ribs. If the training electrode pads are not placed on the
simulated victim in the proper sequence, i.e., first training pad labeled "1" and
then training pad labeled "2", the trainee will be continually prompted until the
trainee performs the operation in the required sequence. Further, each training
electrode pad
120 must be placed such that each of its respective sensors
132,
134 contacts the respective conductive target
170 located
on the simulated victim
100 or manikin. The trainee will continue to be
prompted until the trainee successfully performs the sequence of operations. The
trainee will then be prompted to connect the electrode plug
112 into the
plug receptacle
110 of the device
10. If the trainee performs this
operation successfully, a jumper
113 located within the plug will complete
the internal circuit. The device
10 senses that the plug
112 is installed
when the jumper
113 completes the intended current.
After the training electrode pads
120 and the plug
112 of the
electrode cable have been properly installed by the trainee, the trainee is prompted
to press the "ANALYZE" switch
54 and to "STAND CLEAR" of the victim. The
analyze LED
60 will flash on and off while the device simulates the Analyze
function of a real defibrillator. The device
10 will have been previously
programmed by an instructor or the trainee as described in more detail, below.
The device will indicate to the user via voice prompting whether a shock is advised.
If a shock is advised, the Analyze LED
60 will turn off and the shock LED
light
62 will flash on and off, while the trainee is voice prompted "SHOCK
ADVISED". If a shock sequence is advised, the trainee will be prompted to "STAND
CLEAR" of the victim while a simulated charging tone is emitted from the speaker.
The trainee is prompted to "SHOUT ALL CLEAR" and to check if all clear and then
press the "SHOCK" key
56. When the "SHOCK" key
56 is pressed, the
trainee will hear a simulated shock ready tone of approximately 15 seconds in duration
and then a simulated shock delivered tone. Then the Shock LED light
62 will
be deactivated. The trainee will be prompted to press the ANALYZE key
54
to repeat the process. If no shock is advised, the Analyze LED
60 is turned
off and the trainee is prompted to check the simulated victim's breathing and pulse.
If no pulse is detected, the trainee is prompted to do CPR for a 1 minute interval.
If no pulse is detected by the simulated defibrillator after the trainee has performed
CPR for a set interval of time, the trainee is prompted to check the victim's pulse,
and if no pulse is found, to press the Analyze key
54.
The shock sequence as described above is programmable by the trainee or instructor
using the shock sequence keypad
90 located on the rear panel. Thus the user
may program the sequence of shock/no shock heart rhythms. Up to seven shock/no-shock
sequences may be programmed. In order to program the device, the set key
92
is toggled on. Adjacent the set key
92 is seven toggle keys
93-
99
labeled "1" through "7+", with each numbered key representing the numerical cycle
of analyzed heart rhythms. Thus key "1"
93 represents the first cycle of
simulated analyzed heart rhythms, key "2"
94 represents the second cycle
of simulated analyzed heart rhythms, etc. Thus up to seven cycles may be programmed.
In addition, each numerical key has its own LED indicator light
101 located
immediately thereabove. The indicator light indicates (i.e., when lit) whether
a shockable rhythm has been programmed. When the set key
92 is toggled on,
the LED indicator lights
101 will light up if a shockable rhythm is desired
for its respective numerical cycle. If the LED indicator light
101 is not
lit, then the device will not recommend a shockable rhythm for that particular
cycle. For example, if the American Heart Association recommended teaching shock
sequence is: shock:shock:shock:no shock:shock:shock, then keys
1-
3
and keys
5-
7 will be toggled on such that their respective LED indicator
lights
101 are lit. When finished programming, the set key
92 is
toggled off.
The Shock Sequence Panel
90 also provides for turning on a "REFIBRILLATE"
key
102. To program the device for the REFIBRILLATE function, the set key
92 is toggled on and then the REFIBRILLATE key
102 is toggled on
such that the LED indicator light
103 labeled "ON" lights up. The set key
92 is then toggled off. In order to use this feature, a non shockable rhythm
must have been programmed. After the trainee receives the first "NO SHOCK ADVISED"
prompt, the trainee will be instructed to "CHECK BREATHING AND PULSE", and "IF
NO PULSE PERFORM CPR". The CPR interval will be interrupted to instruct the trainee
that the victim has went into a shockable rhythm. The trainee will be prompted
to press the ANALYZE key. Thus when the REFIBRILLATE key is activated, a simulation
of a non-shockable rhythm which converts into a shockable rhythm is demonstrated.
The Shock Sequence panel
90 also provides for the simulation of a manual,
semi-automatic or automatic defibrillator by programming the Analyze key
105.
The simulation of a semi-automatic defibrillator is the same as the manual defibrillator
as described above, except the trainee is not prompted to press the Analyze key
after it has been pressed once by the trainee. The simulation of an automatic defibrillator
is the same as the above description, except the trainee is not prompted to press
the ANALYZE key at anytime, as the device automatically goes into the simulated
Analyze mode.
The Shock Sequence panel
90 also provides for the altering of the CPR
prompting based upon the number of rescuers present for the CPR mode. After the
set key
92 is toggled on, the "ADULT/CPR/TIME" key
106 may be set
to either "1 Rescuer"
107 or "2 Rescuer"
108 mode. The timing of
the CPR interval and the breathing rate will be affected. For 1 Rescuer attending
a victim, the trainee will be prompted to do cycles of 5 chest compressions and
1 breath for 1 minute, while 2 Rescuers will be prompted to do cycles of 15 compressions
and 2 breaths for 1 minute intervals. In addition, the Shock Sequence panel
90
also allows the trainee to program short or long prompting scripts for the rescue
instructions for the AED, CPR or AED/CPR modes of operation by selecting the "PROMPTING
FORMAT" key
109 and setting it to "short" or "long" formats. The "short"
prompting format contains only the essential prompting queues, while "long" format
gives trainee more detailed instructions. In addition, the Shock Sequence Panel
90 provides for programming the CPR interval, i.e., the time CPR is prompted,
to 30, 60 or 90 second intervals.
CPR Mode
When the trainee manually sets the SELECT PROMPTING MODE switch
70 to
CPR mode
74, the trainee will receive instructive prompts for performing
CPR in conjunction with other rescue operations such as the HEIMLICH maneuver,
abdominal thrusts and rescue breathing. In order to activate the device in this
mode, the trainee must assess the victim's age and select the appropriate ADULT,
BABY or CHILD key. As shown in FIGS. 10 and 13, the trainee will be prompted to
"REMAIN CALM; SHAKE VICTIM GENTLY AND SHOUT ARE YOU OKAY; IF NO RESPONSE CALL 911
NOW." Next the trainee is prompted to "POSITION THE VICTIM ON HIS OR HER BACK ON
A FIRM SURFACE." and to "TILT HEAD; LIFT CHIN; CHECK BREATHING." The trainee is
then prompted to assess whether the victim is breathing. If the victim is not breathing,
the trainee is instructed to "TILT HEAD LIFT CHIN; PINCH NOSE; BLOW; BLOW." The
trainee is then prompted to press pause key and repeat the above steps if no chest
rise. The trainee will then be prompted to CHECK THE VICTIM'S PULSE. If a pulse
is found but the victim is not breathing, the trainee is prompted to press Key
3 (Rescue Breathing). If no pulse is found, the trainee is instructed to
press KEY
4 CPR. IF the victim's airway is blocked, the trainee is prompted
to press KEY
2 for abdominal thrust prompting.
CPR Plus AED (Both) Mode
When the trainee manually sets the SELECT PROMPTING MODE switch to BOTH, the
trainee will receive instructive prompts for performing CPR in conjunction with
use of a defibrillator. The user may initiate this mode by pressing the ADULT key
after assessing the victim's age. If the BABY or CHILD key is pressed, the trainee
will be prompted that he or she has pressed a wrong key, because infants or children
are not recommended to receive defibrillation. After the ADULT key is selected,
the trainee will be prompted as described above under the CPR mode. However, if
no pulse is found, the trainee is instructed to press the AED power key
52
instead of the CPR key
4. The AED sequence of prompting is as described
above under the AED ONLY section.
While the preferred embodiments of the invention have been illustrated and
described, it should be understood that variations will become apparent to those
skilled in the art. Accordingly, the invention is not to be limited to the specific
embodiments illustrated and described herein, but rather the true scope and spirit
of the invention are to be determined by reference to the appended claims.
*
