KR101958267B1 - Suction Pump of Artificial Intelligence Type Autonomously Drived, and Catheter Used threrin - Google Patents

Abstract

An autonomous drive type artificial intelligent medical suction machine and a catheter used therein are disclosed. The present invention relates to a catheter including a catheter having a plurality of suction holes formed at a predetermined height along a periphery of a suction end, a suction pump connected to the catheter, a driving unit for moving the catheter to insert the catheter into the respiratory apparatus, Wherein the controller sets the suction pressure of the suction pump to a predetermined reference suction pressure, advances the catheter forward so that the suction end of the catheter is inserted into the respirator, and changes the value of the actual suction pressure measured from the catheter Thereby controlling the suction pressure of the suction pump. According to the present invention, an autonomous drive type artificial intelligent medical suction unit in which a suction pressure of a foreign substance is adaptively adjusted according to a state of a foreign object, and a catheter used therefor are provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an autonomous drive type artificial intelligent medical suction machine and a catheter used therein,

[0001] The present invention relates to an autonomous drive type artificial intelligent medical suction unit and a catheter used therefor, and more particularly, to an autonomous drive type artificial intelligent medical suction unit in which a suction pressure of an object is adaptively adjusted according to a state of a foreign object, .

The medical suction unit is a medical foreign body suction device for forcibly sucking and removing foreign substances such as blood, saliva, vomit and secretion generated in the body of a patient while performing a procedure in a hospital.

In general, patients who are uncomfortable in hospitals or at home are equipped with a constant suction machine and are assisted by a caregiver or nurse to remove foreign substances such as sputum from airway or bronchial tubes.

However, since foreign substances such as sputum can occur during sleep and block the airway of the patient, the nurse, caregiver and guardian must not only drive the suction machine from time to time, but also the guardian drives the suction machine from time to time You have to take the trouble of removing the foreign object.

In addition, although the protector judges that foreign substance such as sputum exists in the patient's respiratory apparatus and attempts to aspirate the foreign substance by entering the catheter provided in the medical suction machine into the respiratory apparatus, There is a case where the suction of the fluid is not smooth.

Accordingly, it is an object of the present invention to provide an autonomous drive type artificial intelligent medical suction unit in which a suction pressure of a foreign substance is adaptively adjusted according to a state of a foreign matter, and a catheter used therefor.

According to another aspect of the present invention, there is provided a control method of an artificial intelligent medical suction unit for removing foreign matter from a respiratory apparatus using a catheter, the method comprising the steps of: (a) Setting a suction pressure of the suction pump to a predetermined reference suction pressure; (b) advancing the catheter forward so that the inhalation end of the catheter is inserted into the respiratory tract; And (c) controlling the suction pressure of the suction pump based on the variation value of the actual suction pressure measured from the catheter.

Advantageously, the step (c) comprises: (c1) increasing the suction pressure of the suction pump when the actual suction pressure measured from the catheter is increased by a predetermined ratio .

The step (c) may further include the step of (c2) further increasing the suction pressure of the suction pump when the state in which the actual suction pressure is increased by a predetermined ratio is maintained for a predetermined time or longer .

According to another aspect of the present invention, there is provided an artificial intelligent medical suction unit for removing foreign substances in a respiratory apparatus using a catheter, the artificial intelligent medical suction unit comprising: a catheter having a plurality of suction holes formed at a predetermined height around a suction end; A suction pump connected to the catheter; A driving unit for moving the catheter to insert the catheter into the respiratory apparatus, and a control unit for controlling the suction pump and the driving unit, wherein the control unit sets the suction pressure of the suction pump to a predetermined reference suction pressure The catheter is driven forward to insert the suction end of the catheter into the respiratory apparatus and the suction pressure of the suction pump is controlled based on the variation value of the actual suction pressure measured from the catheter.

Advantageously, the control unit increases the suction pressure of the suction pump when the actual suction pressure measured from the catheter is increased by a predetermined ratio.

The control unit may further increase the suction pressure of the suction pump when a state in which the actual suction pressure is increased by a predetermined ratio is maintained for a predetermined time or longer.

The catheter provided in the medical suction unit according to the present invention for sucking foreign substances in the respiratory apparatus is characterized in that a plurality of suction holes are formed at a predetermined height along the periphery of the suction end.

According to the present invention, an autonomous drive type artificial intelligent medical suction unit in which a suction pressure of a foreign substance is adaptively adjusted according to a state of a foreign object, and a catheter used therefor are provided.

1 is a view showing a structure of an artificial intelligent medical suction unit according to an embodiment of the present invention,
FIG. 2 is a flow chart for explaining an execution process of a control method of an artificial intelligent medical suction unit according to the present invention;
FIG. 3 is a view showing a waveform of a stethoscopic sound measured from a patient having no respiratory disturbance due to sputum or the like, converted into a frequency domain,
4 is a view showing a waveform of a stethoscopic sound measured from a patient suffering from a respiratory disorder due to sputum or the like and converting the waveform into a frequency domain,
5 is a flow chart for explaining an execution process of a control method of an artificial intelligent medical suction unit adaptively driven according to a state of a foreign matter according to the present invention, and
FIG. 6 is a view showing a structure of a suction end of a catheter provided in an artificial intelligent medical suction device according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a view showing the structure of an artificial intelligent medical suction unit according to an embodiment of the present invention. The artificial intelligent medical suction unit 200 according to the present invention performs a function of removing foreign substances in the respiratory apparatus by using the catheter 100. To this end, the artificial intelligent medical suction unit 200 includes a suction pump 210 connected to an end of the catheter 100, A heart monitor 220, a driver 230, a stethoscope microphone 240, a pressure sensor 250, a pulse measuring unit 260, a controller 270, and an oxygen saturation measuring unit 280.

First, the suction pump 210 is installed at one end of the catheter 100 and sucks the suction pressure inside the catheter 100 so that foreign substances such as sputum are sucked through the other end of the catheter 100 inserted into the patient's respiratory system .

The sensor unit 220 includes a mass flow meter (MFM) sensor for measuring the mass of the inspiratory gas and the mass of the exhalation gas of the patient, respectively, and measures the mass of the inspiratory gas and the exhalation gas of the patient, And transmits the result to the control unit 270.

On the other hand, the driver 230 moves the catheter 100 forward for insertion into the bronchus of the catheter 100, or moves the catheter 100 backward for removal from the organ of the catheter 100.

The stethoscope microphone 240 measures the stethoscope sound of the patient and transmits the measured stethoscope sound to the control unit 270. The pulse measurement unit 260 measures the pulse rate of the patient and outputs the measured pulse rate to the control unit 270 The oxygen saturation measuring unit 280 measures the degree of saturation of oxygen from the blood sample collected from the patient and transmits the measured degree of oxygen saturation to the control unit 270.

The control unit 270 receives the patient's stutter sound information received from the stethoscope microphone 240, the pulse rate information of the patient received from the pulse measuring unit 260, the patient's oxygen saturation information received from the oxygen saturation measuring unit 280 Based on the patient condition information including the patient's condition, the condition of the patient's bronchus to remove foreign substances such as sputum.

In addition, the pressure sensor 250 measures the pressure (sound pressure) formed inside the catheter 100 and transmits the measured pressure value to the controller 270.

FIG. 2 is a flowchart illustrating a process of controlling the artificial intelligent medical infusion set 200 according to an embodiment of the present invention. Referring to FIG. Hereinafter, with reference to FIG. 1 and FIG. 2, a description will be made of a process of controlling the artificial intelligent medical suction device 200 according to an embodiment of the present invention.

First, the sensor unit 220 includes a first mass flowmeter sensor and a second mass flowmeter sensor. The first mass flowmeter sensor measures an exhalation volume of the patient from an exhalation outlet of a respiratory mask worn by the patient, 2 The mass flow sensor measures the inspiratory volume of the patient from the inspiratory inlet of the respiratory mask.

Meanwhile, the control unit 270 receives the breathing volume measurement value of the patient from the first mass flowmeter sensor and the breathing volume measurement value of the patient from the second mass flowmeter sensor alternately. As a result, the controller 270 controls the breathing cycle It becomes possible to acquire the glucose tolerance information in real time.

In addition, the controller 270 computes the interval between the time at which the breath breathing volume measurement value is received from the first mass flowmeter sensor and the time at which the next breath breathing volume measurement value is received, thereby determining the breathing (inspiration / breathing) cycle of the patient (S320).

The control unit 270 calculates and stores a cumulative average value of the patient's respiratory volume, calculates and outputs a cumulative average value of the respiratory cycles of the patient, .

Meanwhile, the controller 270 determines whether the respiration rate per breathing cycle of the patient received from the sensor unit 220 in real time from the sensor unit 220 is less than a cumulative average value (reference breathing rate) of the patient's respiration rate (S330) .

In general, when foreign substances such as sputum accumulate more than a certain degree in the respiratory tract, the respiration of the patient becomes complicated, resulting in a shortening of the respiratory cycle and a decrease in respiratory rate per breathing cycle.

Accordingly, when it is determined that the respiration amount per breathing cycle of the patient is less than the cumulative average value (reference breathing amount) of the patient, the control unit 270 determines that the removal of the sputum is necessary and the suction pump 210 and the driving unit 230 , Thereby starting entry of the catheter 100 into the respiratory tract (S390).

On the other hand, if the control unit 270 determines in step S330 that the respiration amount per breathing cycle of the patient is equal to or greater than the cumulative average value (reference respiration amount) of the respiration amount of the patient, the control unit 270 determines, It is determined whether the cycle is smaller than the cumulative average value (reference cycle) of the respiratory cycle (S340).

As a result, when it is determined that the currently measured respiratory cycle of the patient is smaller than the cumulative average value (reference cycle) of the respiratory cycle, even if the patient's respiratory volume is not abnormal, The operation start command is transmitted to the pump 210 and the driving unit 230 so that the entry of the catheter 100 into the respiratory apparatus is started (S390).

If the control unit 270 determines in step S340 that the currently measured respiratory period of the patient is not less than the cumulative average value of the respiratory period (reference period), the controller 270 analyzes the waveform of the stuttering sound of the patient (S350), and determines whether the maximum amplitude of the analyzed waveform exceeds a predetermined reference amplitude value (S360).

Specifically, the normal control unit 270 receives a stethoscopic sound (or a breath sound) from the patient's chest measured from the stethoscope microphone 240 in real time, and performs a waveform analysis as shown in FIG. 3 for the received stethoscope sound . FIG. 3 is a diagram showing the waveform of a stethoscope measured from a patient without respiratory disturbance due to sputum or the like, converted into a frequency domain. FIG.

The control unit 270 sets a mean value obtained by accumulating the maximum amplitude of the analyzed waveform for the stethoscope sound received in real time as a reference amplitude value.

On the other hand, when the control unit 270 determines that the maximum amplitude of the waveform analyzed for the stinging sound received from the stethoscope microphone 240 exceeds a predetermined reference amplitude value, It is determined that the breathing of the catheter 100 is rough and the operation start command is transmitted to the suction pump 210 and the driving unit 230 so that the entry of the catheter 100 into the respirator is started (S390).

Specifically, as shown in FIG. 4, it can be seen that the maximum amplitude of the waveform of the stuttering sound measured from the patient having respiratory disturbance due to sputum or the like exceeds the maximum amplitude of the steady state waveform in FIG.

On the other hand, if the control unit 270 determines in step S360 that the maximum amplitude of the waveform analyzed for the stinging sound received from the stethoscope microphone 240 does not exceed the predetermined reference amplitude value, 270) determines whether the current pulse rate of the patient exceeds a reference pulse rate (S370).

Specifically, the normal control unit 270 receives the pulse rate of the patient in real time from the pulse measuring unit 260 installed on the patient's wrist, and sets the average value of the cumulative received pulse rate as the reference pulse rate.

On the other hand, when the control unit 270 receives a pulse rate exceeding the reference pulse rate from the pulse measuring unit 260, the control unit 270 determines that the patient is unconscious and has difficulty breathing due to foreign substances such as sputum As a result, it is determined that the pulse rate of the patient is increased, and an operation start command is transmitted to the suction pump 210 and the driving unit 230, thereby starting entry of the catheter 100 into the respiratory apparatus is started (S390).

If the control unit 270 determines in step S370 that the pulse rate received from the pulse measurement unit 260 does not exceed the reference pulse rate, the controller 270 determines whether the currently measured oxygen saturation from the patient is normal It is determined whether the oxygen saturation is less than a reference oxygen saturation value corresponding to about 80% of the oxygen saturation (S380).

On the other hand, when it is determined that the current oxygen saturation of the patient received from the oxygen saturation measuring unit 280 is less than the reference oxygen saturation, the control unit 270 determines that the unconscious patient is a foreign object of the respiratory apparatus such as sputum It is determined that the oxygen saturation of the patient is decreased and the operation start command is transmitted to the suction pump 210 and the driving unit 230. As a result, the entry of the catheter 100 into the respiratory apparatus is started (S390).

On the other hand, when it is determined that foreign substances such as sputum are present in the patient's respiratory tract by the above-described method, foreign substances can be successfully removed through the catheter when entry into the respiratory apparatus of the catheter is started. However, Or the foreign matter may not be removed smoothly depending on the state of the foreign matter, such as when the amount of foreign matter is large.

Accordingly, the present inventor has proposed a control method of an artificial intelligent medical infusion pump that intelligently judges the state of a foreign object and adjusts the suction pressure of the foreign object adaptively according to the state of the foreign object.

FIG. 5 is a flow chart illustrating a method of controlling an artificial intelligent medical suction unit adaptively driven according to a state of a foreign object according to the present invention. Hereinafter, with reference to FIG. 1 and FIG. 5, FIG. 5 illustrates an execution process of a control method of an artificial intelligent medical suction unit adaptively driven according to a state of a foreign object according to the present invention.

First, the control unit 270 determines the entry of the catheter 100 into the respiratory apparatus, sets the suction pressure of the suction pump 210 to a predetermined reference suction pressure (S410), and moves the catheter 100 forward And controls the driving unit 230 (S420).

The suction pressure of the suction pump 210 is maintained at a constant value while the catheter 100 is inserted into the respiratory apparatus and moved forward. The pressure sensor 250 installed in the catheter 100 moves the catheter 100 The actual suction pressure value is measured (S430).

6, a plurality of (four) suction holes 150 are formed in the suction end of the catheter 100 at a predetermined height along the suction end, and a part of the suction holes 150 The actual suction pressure value in the catheter 100 is instantaneously increased.

However, if there is a small amount of foreign matter such as sputum, the suction pressure is not increased separately but is smoothly sucked through the suction hole 150 and discharged to the outside even when the reference suction pressure is maintained So that the actual suction pressure value inside the catheter 100 is restored to its original state.

However, when foreign matter such as sputum which is in contact with the suction hole 150 at the end of the catheter 100 has a relatively large amount or has a high viscosity, foreign matter does not pass through the suction hole 150 even after a lapse of time The suction hole 150 is still closed by the foreign substance.

Accordingly, when it is determined that the actual suction pressure value in the catheter 100 has increased to a ratio (A%) of a minimum standard (for example, 5%) or more (S440) , It is determined whether or not such a pressure state is maintained for a predetermined reference time (for example, 5 seconds) or more (S450).

On the other hand, when the actual suction pressure value within the catheter 100 is restored to the original state within a predetermined reference time, the controller 270 may completely remove the foreign substance temporarily blocking the suction hole 150 from the inside of the catheter 100 It is judged that it is inhaled.

However, when the increased state of the actual suction pressure value is maintained such that the predetermined reference time is exceeded, the control unit 270 determines that the foreign matter is inhaled through the suction hole 150 due to a high viscosity or a large amount of the foreign matter blocking the suction hole 150 150), and the suction pressure value of the suction pump 210 is increased by the same ratio as the actual suction pressure increase rate A% in step S440 so that the foreign matter can be sucked S460).

6, a plurality (four) of the suction holes 150 are formed at the predetermined height along the periphery of the suction end in the end portion of the catheter 100 according to the present invention, so that the amount of foreign matters such as sputum The larger the number of the suction holes 150 is, the more the foreign substance blocks the suction holes 150. As a result, the increase rate of the actual suction pressure in the above-described step S430 is also increased as shown in the following Table 1, Respectively.

Number of blocked suction holes The actual increase rate of suction pressure Increase rate of pump suction pressure 0 0 0 One 30% 30% 2 60% 60% 3 90% 90% 4 120% 120%

That is, as shown in Table 1, the controller 270 increases the actual increase rate of the suction pressure, which means that more suction holes are blocked, and that a larger amount of foreign matter is present at the suction end of the catheter 100 And the increase rate of the pump suction pressure is increased or proportionally increased in accordance with the actual increase rate of the suction pressure.

When the foreign substance passes through the suction hole 150 by the increased suction pressure of the suction pump 210, the actual suction pressure value in the catheter 100 is recovered to the measured value in the step S430 do.

However, as shown in Table 1, even when the pump suction pressure is increased, when the foreign matter still blocks the same number of suction holes 150, the actual suction pressure value inside the catheter 100 is increased .

In the meantime, the control unit 270 of the present invention determines whether the actual suction pressure value in the catheter 100 has increased to a predetermined reference time (for example, 5 seconds) even after the pump suction pressure is increased in step S460, It is judged that the viscosity of the foreign matter is relatively high or the amount of the foreign matter is relatively excessive and the pump suction pressure is further increased by 50% of the increase rate of the pump suction pressure in Table 1 So that the foreign matter is sucked smoothly (S470, S480).

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

100: catheter, 150: suction hole,
200: Medical suction machine, 210: Suction pump,
220: sensor unit, 230: driving unit,
240: stethoscope microphone, 250: pressure sensor,
260: pulse measuring unit, 270: control unit,
280: Oxygen saturation measuring unit.

Claims (3)

An artificial intelligent medical suction machine for removing foreign matter from a patient's respiratory apparatus using a catheter,
A catheter having a plurality of suction holes formed at a predetermined height along the periphery of the suction end;
A suction pump connected to the catheter;
A drive for moving the catheter to insert the catheter into the respiratory tract;
A control unit for controlling the suction pump and the driving unit; And
An oxygen saturation measuring unit for measuring the oxygen saturation of the blood of the patient;
/ RTI >
The control unit sets the suction pressure of the suction pump to a predetermined reference suction pressure, drives the catheter forward to insert the suction end of the catheter into the respiratory apparatus, and calculates a variation value of the actual suction pressure measured from the catheter The suction pressure of the suction pump is controlled based on the suction pressure,
As the amount of foreign matter in the respiratory body of the patient increases, a larger number of suction holes among the plurality of suction holes are blocked by the foreign matter, so that the actual suction pressure measured from the catheter increases,
Wherein the control unit increases the suction pressure of the suction pump when the actual suction pressure measured from the catheter is increased by a predetermined ratio,
The control unit increases the suction pressure of the suction pump at the same increasing rate as the actual suction pressure measured from the catheter,
Wherein the control unit further increases the suction pressure of the suction pump when a state in which the actual suction pressure is increased by a predetermined ratio is maintained for a predetermined time or more,
Wherein the control unit controls the operation of the suction pump based on the measurement value of the oxygen saturation measuring unit.
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