 |
Description  |
|
|
BACKGROUND OF THE INVENTION
The present invention relates to a litholysis apparatus for dissolving a
calculus produced in an organism by using a medical fluid in which, when a
stop operation is carried out, the dissolution treatment is stopped after
the medical fluid, which significantly stimulates organisms, has been
completely discharged.
A calculus treatment apparatus has been recently proposed for treating a
coagulum such as a calculus or the like, which is produced in, for
example, the cystic duct in an organism, by dissolving it in a medical
fluid such as monoctanoin, octodiol, methyl t-butyl ether (MTBE) or the
like, which is introduced into the organism.
For example, first and second examples of prior art are respectively
disclosed in Japanese Patent Laid-Open Nos. 62-117545 (U.S. Pat. No.
4,655,744) and 63-40541 (U.S. application Ser. No. 871775).
In the first example, a predetermined quantity of medical fluid is
introduced into a treatment part and sucked therefrom by using a pump in
an organism so as to promote the dissolution of a calculus under
agitation.
The second example is further provided with a means for detecting the
pressure in the gallbladder and controlling the flow of a medical fluid so
as to keep the pressure in the gallbladder within a set range.
Since a certain time is required for completing litholysis treatment, there
is the possibility that the treatment must be stopped owing to a change in
condition of a patient in the course of the treatment.
In such a case, in the first example, the medical fluid generally remains
in the gallbladder when an apparatus is stopped (or stopped/terminated).
Since this medical fluid significantly stimulates organisms, the medical
fluid remaining in the gallbladder must be manually recovered.
On the other hand, the second example employs a continuous circulation
method in which irrigation and suction are simultaneously made. The
apparatus of the second example also has no means for detecting the
quantity of the medical fluid storing in the gallbladder and no function
to accurately and surely discharge the medical fluid remaining in the
gallbladder to the outside of an organism when the apparatus is stopped.
Since no treatment is made on the medical fluid when the curative
treatment is completed or stopped, therefore, the medical fluid remains in
the organism. There is thus a dangerous problem in that the residual
medical fluid leaks from the gallbladder.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a litholysis apparatus
which allows curative treatment to be stopped after a patient has been
brought into a safe state when an operation of stopping the treatment is
performed.
It is another object of the present invention to provide a therapeutic
litholysis apparatus which is capable of performing litholysis treatment
only by a simple operation.
To this end, the present invention provides a litholysis apparatus
comprising an irrigation means for irrigating an organism by a medical
fluid for dissolving a calculus therein, a suction means for discharging
the medical fluid, in which the calculus dissolves, to the outside of the
organism, a control means for controlling the irrigation means and the
suction means so as to control the quantity of the medical fluid
introduced into the organism and the quantity of the medical fluid
discharged therefrom, and a stop treatment means for completely
discharging the medical fluid injected by the injection means to the
outside of the organism in response to a stop operation performed by a
stop operation means for stopping litholysis treatment. The apparatus has
the function to safely stop the treatment after stop treatment has been
completed by the stop treatment means. The invention further has the
function to perform pretreatment such as the discharge of the humor in a
treatment portion to the outside of a human body by using the suction
means before the litholysis treatment.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 1 to 5 relate to a first embodiment of the present invention, in
which:
FIGS. 1a, and 1b are a flow chart which shows the operation of litholysis
treatment including stop treatment in the first embodiment;
FIG. 2 is a general drawing of the apparatus of the first embodiment;
FIG. 3 is a schematic drawing of the circulation system in the first
embodiment;
FIG. 4 is a block diagram which shows the configuration of a control unit;
and
FIG. 5a-d are explanatory views of the typical operation of the first
embodiment;
FIGS. 6 to 9 relate to a second embodiment, in which;
FIG. 6 is a schematic drawing of the circulation system in the second
embodiment;
FIG. 7a-e are explanatory views of the operation of the second embodiment;
FIG. 8 is a flow chart which shows the contents of stop treatment; and
FIG. 9 is a flow chart which shows treatment contents different from those
shown in FIG. 8;
FIGS. 10 to 13 are schematic diagrams of the circulation system in a third
embodiment of the present invention, in which;
FIG. 10 is a drawing of the configuration of the system in a third
FIG. 11 is a block diagram which shows the configuration of a control unit;
FIG. 12 is a flow chart which shows the contents of stop treatment in the
third embodiment; and
FIG. 13 is a flow chart which shows contents of stop treatment different
from those shown in FIG. 12;
FIGS. 14 to 16 relate to a fourth embodiment of the present invention, in
which;
FIG. 14 is a drawing of the configuration of the circulation system in the
fourth embodiment;
FIG. 15 is a block diagram which shows the configuration of a control unit;
and
FIG. 16 is a flow chart which shows the contents of pretreatment;
FIGS. 17 and 18 relate to a fifth embodiment of the present invention, in
which;
FIG. 17 is a drawing of the configuration of the circulation system in the
fifth embodiment; and
FIG. 18 is a flow chart which shows the contents of pretreatment in the
fifth embodiment;
FIGS. 19 and 20 relate to a sixth embodiment of the present invention, in
which;
FIG. 19 is a drawing of the configuration of the circulation system in the
sixth embodiment; and
FIG. 20 is a flow chart which shows the contents of pretreatment in the
sixth embodiment;
FIG. 21 is a drawing of the configuration of the circulation system in a
seventh embodiment of the present invention;
FIGS. 22 to 24 relate to modification of the seventh embodiment of the
present invention, in which;
FIG. 22 is a drawing of the configuration of a circulation system;
FIG. 23 is a block diagram of the configuration of a control unit; and
FIG. 24 is a flow chart which shows the treatment contents in the seventh
embodiment;
FIGS. 25 and 26 relate to a eighth embodiment of the present invention, in
which;
FIG. 25 is a drawing of the configuration of the eighth embodiment; and
FIG. 26 is a block diagram of the configuration of a circuit unit;
FIGS. 27 and 28 relate to a ninth embodiment of the present invention, in
which;
FIG. 27 is a drawing of the configuration of the ninth embodiment; and
FIG. 28 is a block diagram of the configuration of a circuit unit;
FIGS. 29 and 30 relate to a tenth embodiment of the present invention, in
which;
FIG. 29 is a drawing of the configuration of the tenth embodiment;, and
FIGS. 30a-b are explanatory views of the operation;
FIGS. 31a-c are explanatory views of the operation of a modification of the
eighth embodiment;
FIGS. 32 and 33 relate to an eleventh embodiment of the present invention,
in which;
FIG. 32 is a block diagram of the configuration of a control means; and
FIGS. 33a-c are timing charts provided for explaining the operation;
FIG. 34 is a block diagram of the configuration of the control means in a
twelfth embodiment of the present invention;
FIG. 35 is a block diagram of the configuration of the control means in a
thirteenth embodiment of the present invention; and
FIGS. 36 and 37 relate to a fourteenth embodiment of the present invention,
in which;
FIG. 36 is a drawing of the configuration of the circulation system in the
fourteenth embodiment; and
FIG. 37 is a block diagram of the configuration of the control unit.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
As shown in FIG. 2, a litholysis apparatus 1 has the function to dissolve
the calculus produced in, for example, the gallbladder, which is a
treatment part, in the human body 2 of a patient who lies down on a
medical table 3. As shown in FIGS. 2 and 3, the front end of a catheter 6
is percutaneously inserted into the gallbladder 4, the catheter 6 being
made of a porous tube and having three lumens, i.e., an irrigation duct
6a, a suction duct 6b and a pressure duct 6c. The three lumens of the
catheter 6 are provided at the rear end of the catherter 6 so as to be
branched. The irrigation duct 6a, the suction duct 6b and the pressure
duct 6c are connected to an irrigation pump tube 8a through a connector
7a, a suction pump tube 8b through a connector 7b and a pressure sensor 9,
respectively.
An irrigation pump 10 is provided at an intermediate position of the
irrigation pump tube 8a, and the end of the pump tube 8 is connected to a
liquid bottle 12 for storing a medical fluid serving as a lithotriptic
such as monoctanoin, d-limonene or methyl t-butyl ether (MTBE).
A suction pump 11 is provided at an intermediate position of the suction
pump tube 8b, and the end thereof is connected to an exhaust bottle 13 for
storing the fluid recovered from the treatment part.
The irrigation pump 10 and the suction pump 11 are connected to an
input/control apparatus 20 through a control unit 19 so that the number of
revolutions of the pump can be freely determined by the control unit 19,
the driving time of each of the pumps and the operation of switching the
pumps can be set by the input/control apparatus 20. Each of the pumps 10,
11 is operated in accordance with the set contents.
As shown in FIG. 2, an ultrasonic applicator 14 for applying an ultrasonic
wave to the gallbladder 4 contains a single or a plurality of ultrasonic
piezoelectric transducers (not shown). The ultrasonic applicator 14 is
supported and fixed by a support member 21 which is disposed at the end of
a support arm 15 and connected to a power amplifier 17 by means of a cable
16.
The signal output from an oscillator 18 is input to the power amplifier 17.
The signal output from the control unit 19, in which the frequency,
amplitude, pulse number, pulse separation and driving time are adjusted
and set, is input to the oscillator 18. The signal output from the
oscillator 18 is amplified by the power amplifier 17, and the amplified
signal is applied to the ultrasonic piezoelectric transducer 14a in the
ultrasonic applicator 14.
The ultrasonic wave excited by the ultrasonic piezoelectric transducer 14a
is applied to a portion including the calculus 5, which is present in the
gallbladder 4 in the human body 2.
An ultrasonic observation probe 22 is detachably supported by the support
member 21 opposite to the ultrasonic applicator 14, with the central axis
of the support member 21 therebetween. The ultrasonic probe 22 and the
ultrasonic applicator 14 can be rotated for 180.degree. around the center
of the support member 21 so that the central axis of the observation range
of the ultrasonic probe 22 agrees with the central axis of the ultrasonic
irradiation region of the ultrasonic applicator 14.
The ultrasonic probe 22 is connected to an ultrasonic observation apparatus
23 so that an ultrasonic image including the gallbladder 4 in the human
body 2 is displayed on a monitor 24.
The control unit 19, the input/control apparatus 20, the irrigation pump
10, the suction pump 11, the oscillator 18 and the power amplifier 17 are
connected to a power source through an insulating transformer 26 and a
power switch 25.
The pressure sensor 9 is movable in the longitudinal direction, i.e., the
vertical direction, on a rail 27 so that it can be fixed at any desired
position on the rail 27.
The control unit 19, the input/control apparatus 20, the connectors 7a, 7b
and irrigation pump 10, the suction pump 11, the liquid bottle 12, the
exhaust bottle 13, the oscillator 18, the power switch 25, the insulating
transformer 26, the rail 27 and the power amplifier 17 are installed or
fixed on a body rack 28.
The configuration related to the control unit 19 is described below with
reference to FIG. 4.
The pressure sensor 9 is connected to a signal amplifier 30, a signal
amplified by the signal amplifier 30 being input to comparison circuits 36
and 38 through a low pass filter 32. To the comparison circuits 36 and 38
are respectively connected a standard voltage source 35 corresponding to
the upper limit pressure and a standard voltage source 37 corresponding to
the lower limit pressure during suction. A signal of comparison between a
pressure signal and a standard signal is input to the input/control
apparatus 20 through an I/O interface 44 and a bus 45.
An offset adjusting means 31 is connected to the signal amplifier 30 so
that the offset of the pressure signal output from the signal amplifier 30
can be adjusted. The pressure signal passed through the low pass filter 32
is then input to a pressure display circuit 33 for displaying the pressure
of the treatment part and to an offset pressure display circuit 34.
The irrigation pump 10 and the suction pump 11 are respectively connected
to action adjusting circuits 39, 41 to which action control signals are
input from the input/control apparatus 20 through the bus 45 and the I/O
interface 44 and to which revolution display circuits 40, 42 are
respectively connected.
The oscillation output from the oscillator 18 is applied to the input
terminal of the output adjusting circuit 43 so that the output from the
oscillator 18 can be adjusted by using the control signal applied to the
control terminal through the I/O interface 44. The output from the
oscillator 18 is adjusted, for example, with respect to its frequency,
amplitude, pulse number, pulse separation and driving time, by the output
adjusting circuit 43 using the control signal input from the input/control
apparatus 20 through the I/O interface 44 and the bus line 45. The output
is then amplified by the power amplifier 17 so as to drive the ultrasonic
piezoelectric transducer 14a in the ultrasonic applicator 14.
A stop switch 97 is provided as a means for stopping the treatment. If the
switch 97 is turned on, a stop signal is sent to the input/control
apparatus 20 through the I/O interface 44 so that the input/control
apparatus 20 controls the action of stopping the treatment on the basis of
the stop signal.
A stop switch 98 for forcing the treatment to stop is also provided.
A data input means 99 such as a key board or the like for inputting
treatment data to the input/control apparatus 20 is further provided.
In this first embodiment, the irrigation pump 10 and the suction pump 11
perform the actions (typical action) shown in FIG. 5 on the basis of the
control by the input/control apparatus 20.
When the time read from a timer reaches an irrigation start time t.sub.1 1,
the irrigation of the medical fluid is started by the rotation of the
irrigation pump 10, as shown in FIG. 5a. The irrigation pump 10 is stopped
at an irrigation end time t.sub.1 2. This time t.sub.1 2 is the start time
of ultrasonic irradiation at which ultrasonic irradiation is started, as
shown in FIG. 5b. After the irradiation, the suction pump 11 is started so
as to start suction, as shown in FIG. 5c. After the suction has been
continued to a time t.sub.1 4, a rest is started. After the rest time has
passed, a first treatment comprising irrigation, ultrasonic irradiation
and suction is finished, and second treatment is then started.
In each action, the pressure in the gallbladder is monitored by using the
signal output from the pressure sensor 9 so that it is allowable pressure.
For example, if the detected pressure exceeds the upper limit at a time
during the ultrasonic irradiation shown in FIG. 5, therefore, the suction
pump 11 is rotated so as to perform suction (referred to as "pre-suction"
hereinafter), as shown in FIG. 5c. When the pressure becomes the upper
limit or less, the suction is stopped. Although the suction pump 11 is
then rotated so as to perform suction after the ultrasonic irradiation has
been completed, the quantity of suction is reduced by the quantity of the
pre-suction.
Although above-described operation is a normal operation, for example, if
the stop switch 97 is operated at a time t' during the irrigation shown in
FIG. 5a, the stop signal is output, as shown in FIG. 5d, and the
input/control apparatus 20 controls the stop treatment when detecting the
signal.
Namely, the irrigation pump 10 is immediately stopped so that the
irrigation is stopped (refer to FIG. 5a), and the quantity of the medical
fluid introduced up to the stop time is calculated. The suction pump 11 is
immediately operated in correspondence with the irrigation quantity
calculated (refer to FIG. 5c) so as to discharge the medical fluid, which
is introduced in the human body, to the outside thereof. After the medical
fluid has been completely discharged, the suction is stopped, and the
apparatus is stopped.
If the stop switch 97 is operated during ultrasonic irradiation, the
irradiation is stopped, and the suction pump 11 is immediately operated.
If the stop switch 97 is operated during the operation of the suction pump
11, after the medical fluid introduced has been completely discharged to
the outside of the human body by continuous suction, the suction pump 11
is stopped.
If the stop switch 98 is operated, the apparatus is immediately stopped.
The input/control apparatus 20 controls the irrigation pump 10 and the
suction pump 11 in accordance with the flow chart shown in FIG. 1 so that
the above-described actions are carried out.
The operation of the apparatus 1 is described in detail below with
reference to FIG. 1.
When the operation of the apparatus 1 is started, treatment data required
for curative treatment is input in Step S1. Namely, the operator inputs to
the input/control apparatus 20 the irrigation time taken for introducing
the medical fluid and the suction time for sucking the medical fluid or
the irrigation quantity and suction quantity, the ultrasonic irradiation
time or standing time, and, if required, the stop time and the number of
repetitions.
When the data is input in Step S1, the treatment time and the start time
and end time of each action are calculated and set in Step S2. Namely, the
total time required for treatment is calculated on the basis of the data
input in Step S1.
The start time and end time of each of the means (for example, the
irrigation pump 10, the suction pump 11 and the ultrasonic applicator 14),
i.e., the nth irrigation start time t.sub.n 1, the nth irrigation end time
and an ultrasonic irradiation (standing) start time t.sub.n 2, the nth
ultrasonic irradiation (standing) end time and suction start time t.sub.n
3, the nth suction stop time and rest start time t.sub.n 4, and the nth
rest end time, i.e., (n+1)th irrigation start time t.sub.n+1 1, . . . ,
are calculated over the treatment. These times are set and stored in the
input/control apparatus 20. The active state and inactive state of each of
the operational means are switched on the basis of the calculated times.
When the times are calculated, the total treatment time of treatment is
displayed in Step S3. Namely, the time required for treatment, which is
calculated in Step S2, is displayed on the display part of the
input/control apparatus 20.
After the treatment time has been displayed, the timer is started in Step
S4. In order to control the time required for treatment, the timer in the
input/control apparatus 20 is operated in such a manner that the time (the
elapsed time from the start of treatment) can be known at any time as
occasion demands. When the timer is started, the input/control apparatus
20 reads the time from the timer in Step S5 and then decides whether or
not the pressure in the gallbladder exceeds the upper limit pressure in
Step S6.
The pressure in the gallbladder is measured by the pressure sensor 9, and
the pressure signal is input to the comparison circuit 36 in the control
unit 19 in which it is compared with the standard voltage source 35
corresponding to the upper limit pressure value. Namely, a decision is
made as to whether or not the detected signal is beyond the upper limit
pressure value, i.e., whether the output state of the comparison circuit
36 is "H" or "L".
In a case of YES in Step S6, the processing in Step S7 is performed for
deciding the action state at a time the pressure is over the upper limit
pressure value and then moves to Step S8. On the other hand, in a case of
NO, a decision is made in Step S7b as to whether or not the fluid is under
pre-suction. Step S7a comprises Steps S7a1, S7a2 and S7a3 of making
decisions as to whether or not the fluid is under irrigation, ultrasonic
irradiation and pre-suction, respectively.
When the fluid is under irrigation, the irrigation stop time is set at the
present time in Step S7a1-1 in order to stop the irrigation. The
irrigation is thus stopped after the time the irrigation stop time is
decided in the subsequent step. After Step S7a1-1, a suction stop time is
newly calculated and set.
In Step S7a1-2, a new suction stop time is set so that the true irrigation
time equals to the suction time on the basis of the irrigation time the
medical fluid is actually introduced until irrigation is stopped by the
pressure sensor 9 which detects the pressure. The processing moves to Step
S8.
In the ultrasonic irradiation in Step S7a2, an ultrasonic wave is applied
to the interior of the human body from the ultrasonic applicator. When no
ultrasonic wave is applied, a decision is made as to whether or not the
human body is left to stand. In a case of YES, pre-suction is started,
i.e., the suction pump 11 is started. The processing then moves to Step
S8. The pre-suction is carried out by rotating the suction pump 11 until
the pressure in the gallbladder is decreased to the upper limit pressure
or less for removing excessive pressure when the pressure in the
gallbladder is higher than the predetermined upper limit value during the
ultrasonic irradiation (or standing). After the pre-suction in Step
S7a2-1, the processing moves to Step S8.
In Step S7a3, a decision is made as to whether or not the fluid is under
pre-suction. In a case of YES, the pre-suction time is integrated in Step
S7a3-1, and the processing then moves to Step S8. In Step S7a3-1, the
operation time the suction pump for pre-suction is integrated each time
the time is read from the timer in Step S5.
When the result of a decision whether or not the fluid is under pre-suction
is YES in Step S7b, in Step S7b-1, the suction is stopped, and the
pre-suction time is calculated. Namely, the suction pump is stopped, and
the operation time of the suction pump 11 is determined. A new nth suction
stop time is then calculated in Step S7b-2, and the processing moves to
Step S8. In Step S7b-2, the stop time of the suction pump 11 during the
suction action is determined so that the irrigation time equals to the sum
of the pre-suction time and the suction time.
In Step S8, a decision is made as to whether or not the time is the start
time of nth irrigation. In a case of YES, a decision is made as to whether
or not the pressure in the gallbladder is beyond the upper limit in Step
9a. In a case of NO, a decision is made as to whether or not the time is
the nth irrigation stop time in Step S9b.
The irrigation start in Step S8 means that the rotation of the irrigation
pump 10 is started.
The result of the decision made in Step 9a is NO, the irritation pump is
started in Step S9a-1, and the processing then moves to Step S12. In a
case of YES, abnormal pressure is displayed in Step S9a-2, and the
processing then moves to Step S12.
In a block including Steps S9a and S9a-2, the abnormal pressure is
displayed because, if the pressure in the gallbladder is beyond the upper
limit value during the irrigation start, the irrigation pump 10 is not
rotated in correspondence with the processing and processing speed of the
block.
When the result of the decision made as to whether or not the time is the
nth irrigation stop time is NO in Step S9b, a decision is made as to
whether or not the time is the nth suction start time in Step S10. In a
reverse case of YES, in Step S9b1-1, the suction pump is stopped, and the
ultrasonic irradiation (or standing) is started, and the processing then
moves to Step S12.
The result of the decision made in Step S10 is NO, the processing moves to
Step S11b, and when the result of the decision is YES, a decision is made
as to whether or not the pre-suction is completed in Step S11a. When the
result of the decision made in Step S11a is YES, in Step S11a-1,
ultrasonic irradiation (or standing) is stopped, suction is started, and
the processing then moves to Step S12. When the result of the decision
made in Step S11a is NO, in Step S11a-2, the pre-suction is stopped, and
the pre-suction time is calculated. In Step S11a-3, a new (nth) suction
stop time is calculated, and the processing then moves to Step S11a-1.
In the block including Steps S11a, S11a-2 and S11a-3, when suction is
started before the pre-suction is completed, the operation time of the
suction pump 11 is considered as the pre-suction time, and the pre-suction
is stopped in the same way as that described above.
When the result of the decision made as to whether or not the time is the
nth suction stop time is NO in Step S11b, in Step S12, a decision is made
as to whether or not the treatment is stopped. In a reverse case of NO, in
Step S11b-1, the suction pump is stopped, and the processing moves to Step
S12.
The times of Steps S8, S9b, S10, S11b correspond to the times t.sub.n 1,
t.sub.n 2, . . . , respectively.
In Step S12, a decision as to whether or not the treatment is stopped is
made by deciding whether or not the input/control apparatus 20 selects the
treatment stop. When the treatment is not stopped, the processing moves to
Step S13. When it is decided that the treatment stop is selected,
decisions are made as to whether or not the fluid is under irrigation,
ultrasonic irradiation (or standing), suction and pre-suction in Steps
S12-1, S12-2, S1203 and S12-4, respectively.
In Steps S12-1 to S12-4, the action state at the stop of the treatment is
decided.
When it is decided in Step S12-1 that the the treatment is under
irrigation, the irrigation pump is stopped in Step S12-5. When the result
of the decision made in Step S12-2 is YES, the ultrasonic irradiation is
stopped in Step S12-6. When the human body is allowed to stand, the
standing is stopped in Step S12-6. When the result of the decision made in
Step S12-3 is YES, the suction time is calculated in Step S12-7. When the
result of the decision made in Step S12-4 is YES, the pre-suction time is
calculated in Step S12-8. When the processing in Steps S12-5 to S12-8 is
completed, the suction stop time is calculated in Step S12-9. The quantity
of the medical fluid remaining in the gallbladder is determined from the
difference between the operation time of the irrigation pump 10 and the
operation time of the suction pump 11 (including the operation time of the
suction pump 11 for pre-suction). The suction stop time is determined from
the suction time required for sucking the medical fluid remaining in the
gallbladder.
After the processing in Step S12-9, the suction pump is started in Step
S12-10, and a decision is then made as to whether or not the present time
is the suction stop time in Step S12-11. When the time is not the suction
stop time, a decision is made as to whether or not the suction action is
stopped in Step S12-12.
In Step S12-12, a decision is made as to whether or not the stop of suction
action is further selected in a stop treatment loop. When the result of
this decision is NO, the time is read from the timer in Step S12-13, and
the processing returns to Step S12-11. Since the present time read out
from the timer in Step S4 cannot be input in Step S12-13, in Step S12-13,
the present time is read and used for deciding the action with time.
When the results of the decisions made in Steps S12-11 and S12-12 are YES,
the operation of the suction pump is stopped in Step S12-14, and the
processing then moves to Step S15.
When the result of the decision made in Step S13 as to whether or not the
nth rest end time is NO, the processing returns to Step S5. This decision
is made for deciding whether or not one sequence is completed.
When no rest time is provided, a decision is again made as to whether or
not the time is the suction stop time. When the result of the decision
made in Step S13 is YES, a decision is made as to whether or not the
number of repetitions equals to the set number in Step S14. When the
result of this decision is NO, the number of repeated treatments is
counted up (n=N+1) in Step S14-1, and the processing returns to Step S5.
In Step S14, a decision is made as to whether or not the number of repeated
sequences reaches the set number m. In Step S14-1, the variable, which
indicates the number of actually repeated sequences, is increased by one
for the purpose of performing the next sequence.
When the result of the decision made in Step S14 is YES, the treatment data
is stored in Step S15, and the processing is completed.
In Step S15, the results of treatment actions such as the actual irrigation
time and irrigation quantity, the actual suction time and suction
quantity, the pre-suction time and quantity, the standing or ultrasonic
irradiation time, the number of actually repeated sequences and so forth
are stored in the input/control apparatus 20.
In the first embodiment, when the treatment is stopped, the input/control
apparatus 20 detects the stop of the treatment in accordance with the flow
chart shown in FIGS. 1a and 1b and performs the stop treatment of stopping
the apparatus 1 after the medical fluid has been completely discharged
from the gallbladder.
This stop treatment permits | | |
