KR102574906B1 - Liposuction risk monitoring device - Google Patents

Abstract

An apparatus for monitoring risk of liposuction according to an embodiment of the present invention includes an accommodating unit for collecting lung fat extraction complexes collected during liposuction, and a blood volume included in the lung fat extraction complex located in a specific area of the accommodating unit. and a blood loss monitoring sensor that determines the risk of surgery through a blood loss monitoring sensor comprising: a light source irradiation unit for irradiating a light source to the lung fat extraction complex; an absorbance calculator for calculating absorbance of red blood cells of a light source irradiated from the light source irradiation unit; A red blood cell counting unit for estimating the number of red blood cells included in the lung fat extraction complex using the absorbance calculated through the calculation unit, measuring the amount of blood contained in the lung fat extraction complex through the number of red blood cells counted in the red blood cell count counting unit It is characterized in that it includes a blood volume measuring unit.

Description

Liposuction risk monitoring device {Liposuction risk monitoring device}

The present invention relates to a device for monitoring the risk of liposuction, and more particularly, to a technique for determining the risk of surgery by monitoring changes in the number of red blood cells in a lung fat extraction complex that occur during liposuction.

Recently, as modern people invest heavily in improving their external appearance, the number of plastic surgery, liposuction, and plastic surgery is rapidly increasing. In particular, liposuction is a surgery that many people are interested in for health and treatment purposes as well as cosmetic purposes. In liposuction, a cannula is generally inserted into the fat layer and the fat formed in the cannula is suctioned and removed alone. In other words, liposuction is a procedure in which a cannula is inserted into the fat layer, which consists of the skin layer, fat layer, and muscle layer, to suction and discharge the fat. It can remove fat from the abdomen, thighs, buttocks, arms, as well as the face, and is also used for lipoma removal. It is becoming. Since the aspect of the fat layer extracted during such liposuction is detected depending on the external naked eye or the operator's touch, damage may occur to the surgical and treatment area. When damage occurs in the surgical or surgical site, a large amount of bleeding is accompanied, and if prompt action is not taken, the safety and reliability of the surgery are deteriorated.

Korean Patent Publication No. 2005-0074214 relates to a red blood cell index measuring device, which includes a mixing device for mixing a sample; a flow rate control device for controlling the flow rate of the sample; an array device for arranging the red blood cells of the sample; and a detector device for measuring the red blood cell index.

Korean Patent Registration No. 10-1600869 relates to a device, method, and system for simultaneously collecting a user's blood and measuring the number of red blood cells in the user's blood. A storage unit, a diluent storage unit containing a diluent for diluting red blood cells in the user's blood, a hemocytometer for smearing the blood that has passed through the diluent storage unit, a camera unit for photographing the blood smeared in the hemocytometer, and When the syringe coupled to the injector receiving part collects the user's blood, a predetermined amount of the collected blood is moved to the diluent storage unit, and the diluted blood in the dilution storage unit is stored in the hemocytometer. It is characterized in that it includes a control unit for controlling to be smeared on the meter.

Korean Patent Publication No. 2005-0074214 Korean Registered Patent No. 10-1600869

An embodiment of the present invention monitors in real time the change in the number of red blood cells in the lung fat extraction complex that occurs during liposuction and sends an alarm signal to the operator when the number of red blood cells rapidly increases, so that the operator can damage microscopic tissue and blood vessels. It is intended to provide a device for monitoring the risk of liposuction so that an immediate response can be made by recognizing that this has occurred.

An apparatus for monitoring risk of liposuction according to an embodiment of the present invention includes an accommodating unit for collecting lung fat extraction complexes collected during liposuction, and a blood volume included in the lung fat extraction complex located in a specific area of the accommodating unit. It includes a blood loss monitoring sensor that determines the risk of surgery through

The blood loss monitoring sensor includes a light source irradiation unit for irradiating a light source to the lung fat extraction complex, an absorbance calculation unit for calculating absorbance of red blood cells of the light source irradiated from the light source irradiation unit, and the lung fat extraction complex using the absorbance calculated through the absorbance calculation unit. It is characterized in that it includes a red blood cell count counting unit for estimating the number of red blood cells contained in the lung fat extraction complex, and a blood loss measurement unit for measuring the amount of blood contained in the lung fat extraction complex through the number of red blood cells counted by the red blood cell count counting unit.

The accommodating unit includes a capacity measurement unit for measuring the volume of the lung fat extraction complex collected in the accommodation unit in real time, a time measurement unit for measuring the time at which the lung fat extraction complex is collected, and the lungs measured in the capacity measurement unit. It is characterized in that it further comprises a data transmission unit for transmitting the volume data of the fat extraction complex and the time data measured by the time measuring unit to the blood loss monitoring sensor.

A risk determination unit for determining the risk of bleeding by comparing the amount of blood loss measured by the blood loss measurement unit with a preset reference value, and a danger signal alarm unit generating a danger signal when the risk determination unit determines that the risk of bleeding is high characterized by

The bleeding amount monitoring sensor is covered with a protective cap to prevent damage and contamination by external impurities, and the protective cap is formed of a plastic material that can be deformed according to the shape of the bleeding amount monitoring sensor.

The light source irradiation unit irradiates a light source in a wavelength range of 300 to 500 nm, and adjusts the intensity of the light source and the angle of the irradiated light source according to the capacity of the lung fat extraction complex.

The absorbance calculator includes an incident light source measurement unit for measuring the intensity I _o of the light source incident on the lung fat extraction complex collected in the receiving unit, and a transmission light source measurement unit for measuring the intensity I _i of the light source passing through the lung fat extraction complex. and a light source intensity storage unit for storing the intensities of the light sources measured by the incident light source measurement unit and the transmitted light source measurement unit, and calculating the absorbance of red blood cells based on the intensities of the incident and transmitted light sources stored in the light source intensity storage unit. It includes a part, and the absorbance (A) is characterized in that it is calculated as Log (I _o /I _i ).

When the amount of blood loss during a certain period of time is measured to be greater than or equal to a preset reference value, the risk level determination unit transmits a danger signal indicating that the operation is dangerous to the danger signal alarm unit, and maintains the amount of blood loss during a certain period of time below the set standard value. If it is, it is characterized in that a safety signal indicating that the operation is safely proceeding is transmitted to the danger signal alarm unit.

The blood loss estimated by the blood loss measuring unit is characterized in that it is calculated by red blood cell count (RBC) X number of red blood cells per unit blood.

The disclosed technology may have the following effects. However, it does not mean that a specific embodiment must include all of the following effects or only the following effects, so it should not be understood that the scope of rights of the disclosed technology is limited thereby.

The risk monitoring device for liposuction according to an embodiment of the present invention monitors in real time the change in the number of red blood cells in the lung fat extraction complex that occurs during liposuction and sends an alarm signal to the operator when the number of red blood cells increases, It is possible to provide a technique that enables an operator to immediately cope with recognizing that microscopic damage and vascular damage have occurred in tissues.

1 is a view showing a cross section of a partial region of a general abdomen.
2 is a diagram showing the configuration of a risk monitoring device for liposuction surgery according to an embodiment of the present invention.
3 is a diagram showing the configuration of a blood loss monitoring sensor for liposuction according to an embodiment of the present invention.
4 is a diagram showing the configuration of a light source irradiation unit according to an embodiment of the present invention.
5 is a graph showing the distribution of hemoglobin absorbance in red blood cells.
6 is a diagram showing the configuration of an absorbance calculator according to an embodiment of the present invention.
7 is a flow chart illustrating a blood loss monitoring method using a risk monitoring device for liposuction surgery according to an embodiment of the present invention.

Since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

Meanwhile, the meaning of terms described in this application should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Expressions in the singular number should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to an embodied feature, number, step, operation, component, part, or these. It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In each step, the identification code (eg, a, b, c, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step clearly follows a specific order in context. Unless otherwise specified, it may occur in a different order than specified. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present application.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail. Hereinafter, the same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components are omitted.

1 is a view showing a cross section of a partial region of a general abdomen.

Referring to FIG. 1 , a portion of the cross section of the abdomen is shown among the components of the human body, and the abdomen is composed of a skin layer 110, a subcutaneous fat layer 120, a muscle layer 130, and a peritoneum 140. In addition, the abdomen includes several organs, but only the above-described components will be shown and described here.

The skin layer 110 is located at the outermost part of the human body, and the subcutaneous fat layer 120 is located below the skin layer 110 . The subcutaneous fat layer 120 is a portion composed of fat extracted during liposuction, and during liposuction, a cannula is inserted into the subcutaneous fat layer and the fat is suctioned and removed through a hole formed in the cannula. That is, in liposuction, a cannula is inserted into the fat layer in the skin composed of a skin layer, a fat layer, and a muscle layer to suction and discharge the fat. Here, the cannula is a tube inserted into the body, the front end is closed and the rear end is open, and the cannula is inserted into the fat layer, which is the treatment site, and moved in forward/backward directions to destroy fat cells and extract fat cells to the outside. The front end of the cannula to be closed is formed in a streamlined shape to prevent injury to internal organs or muscles when inserted into the treatment site.

In addition, a cannula corresponds to a medical device that allows liquid or air to pass through, and can be inserted into the thoracic or abdominal cavity to extract liquid or inserted into a blood vessel to collect blood. It can be used for various purposes.

In addition, the muscle layer 130 is located under the subcutaneous fat layer 120, and the peritoneum 140, which protects all or part of the abdominal organs such as the stomach or liver, is located under the muscle layer 130.

During liposuction of the abdomen having this configuration, the cannula must be inserted only up to the subcutaneous fat layer 120 existing above the muscle layer 130 to extract fat. However, since the fat must be physically extracted by directly inserting the cannula into the subcutaneous fat layer 120 , micro-damages other than the subcutaneous fat layer 120 may occur. Since microscopic damage to human tissue is accompanied by bleeding, almost the patient's blood is mixed in the lung fat mixture extracted during the liposuction process. , follow-up actions can be taken quickly.

However, since the lung fat extraction mixture contains a mixture of fat extract, two medicine solution, and blood, it is not easy to determine the amount of blood with the naked eye. Accordingly, an object of the present invention is to provide a device for monitoring the risk of liposuction by counting the number of red blood cells in a lung fat extraction mixture generated during liposuction and measuring the amount of blood loss based on the count.

2 is a diagram showing the configuration of a risk monitoring device for liposuction surgery according to an embodiment of the present invention.

Referring to FIG. 2 , the liposuction risk monitoring device 200 includes an accommodation unit 210 in which pulmonary fat complex generated during the liposuction process is collected and a blood loss amount that monitors the amount of blood generated during the liposuction process in real time. A monitoring sensor 250 is included.

The accommodating unit 210 may further include a capacity measurement unit 220 that is connected to the cannula to collect the lung fat complex extracted externally during liposuction and to measure the volume of the collected lung fat complex. Also, the accommodating unit 210 may further include a time measurement unit 230 that measures the time at which the lung fat complex is collected.

The volume data of the lung fat extraction complex measured by the capacity measurement unit 220 and the time data measured by the time measurement unit 230 are transmitted to the blood loss monitoring sensor 250 through the data transmission unit 240 .

The blood loss monitoring sensor 250 is provided in a specific area of the accommodating unit 210, counts the number of red blood cells included in the lung fat extraction complex collected in the accommodating unit 210, predicts the amount of blood loss, and based on the predicted blood loss The risk of surgery is monitored in real time. The bleeding amount monitoring sensor 250 will be described in more detail with reference to FIGS. 3 to 6 .

The blood loss monitoring sensor 250 is covered with a protective cap to prevent damage and contamination by external impurities, and the protective cap may be formed of a plastic material that can be deformed according to the shape of the blood loss monitoring sensor 250. . In addition, the protective cap can be formed in a detachable form as needed.

3 is a diagram showing the configuration of a blood loss monitoring sensor for liposuction according to an embodiment of the present invention.

Referring to FIG. 3 , the blood loss monitoring sensor 300 for liposuction includes a light source irradiation unit 310, an absorbance calculator 320, a red blood cell counting unit 330, a blood loss measurement unit 340, and a risk level determination unit 350. ) and a danger signal alarm unit 360.

First, the light source irradiation unit 310 irradiates a light source to the lung fat extraction complex collected in the receiving unit ('210' in FIG. 2). In the light source irradiation unit 310, a light source of a wavelength band having the highest absorbance of red blood cells is irradiated. Preferably, a light source in a wavelength range of 300 to 500 nm is irradiated.

The absorbance calculation unit 320 calculates the absorbance of red blood cells of the light source irradiated by the light source irradiation unit 310 . Absorbance for red blood cells is calculated as shown in Equation 1 below.

<Equation 1>

Absorbance (A) = Log (I _o /I _i ), (I _o : intensity of incident light source, I _i : intensity of transmitted light source)

The red blood cell counting unit 330 counts the number of red blood cells included in the lung fat extraction complex by using the absorbance calculated by the absorbance calculating unit 320 .

The blood loss measuring unit 340 calculates the blood volume through the number of red blood cells counted by the red blood cell counting unit 330 and predicts the blood loss included in the lung fat extraction complex. The blood loss estimated by the blood loss measurement unit 340 is calculated as shown in Equation 2 below.

<Equation 2>

Blood volume included in the lung fat extract complex = Red Blood Cell Count (RBC) × Red blood cell count per unit blood (representative unit: cell count/μL)

The risk determination unit 350 determines the risk of bleeding by comparing the amount of blood loss predicted by the blood loss measurement unit 340 with a preset reference value. The risk level determination unit 350 transmits a danger signal indicating that the operation is dangerous to the danger signal alarm unit when the amount of blood loss during a certain period of time is measured to be greater than or equal to a predetermined reference value. The risk level determination unit 350 may transmit only a danger signal, but more preferably, when the amount of blood loss for a certain period of time is maintained below a predetermined reference value, a safety signal is transmitted at regular time intervals to inform that the operation is safely proceeding. can

When the danger signal alarm unit 360 receives a danger signal from the risk level determination unit 350, it transmits the risk level of surgery to the operator through an alarm. The danger signal alarm unit 360 may generate an alarm using an alarm sound, vibration, or display by connecting to a separate device.

4 is a diagram showing the configuration of a light source irradiation unit according to an embodiment of the present invention.

Referring to FIG. 4 , the light source irradiation unit 400 irradiates a light source in a wavelength band having the highest absorbance of red blood cells. More specifically, the light source irradiation unit 400 preferably irradiates a light source in a wavelength band having the highest absorbance of hemoglobin in red blood cells. Hemoglobin plays a very important role in transporting oxygen, and as can be seen from the graph of FIG. 5, hemoglobin has the highest absorbance at a wavelength of about 418 nm. Accordingly, the light source irradiation unit 400 is irradiated with a light source having a wavelength of 300 to 500 nm, preferably 418 nm.

The light source irradiator 400 includes a light source intensity control unit 410 that adjusts the intensity of the light source according to the change in the volume of the lung fat extraction complex generated during the liposuction process and a light source angle control unit 420 that adjusts the angle of the light source. can include more.

6 is a diagram showing the configuration of the absorbance calculation unit of FIG. 3 according to an embodiment of the present invention.

Referring to FIG. 6 , the absorbance calculation unit 600 includes an incident light source intensity measurement unit 610, a transmitted light source intensity measurement unit 620, a light source intensity storage unit 630, and a calculator 640.

The incident light source intensity measuring unit 610 measures the intensity (I _o ) of the light source when the light source irradiated from the light source irradiation unit is incident on the lung fat extraction complex collected in the receiving unit. The transmitted light source intensity measuring unit 620 measures the intensity (I _i ) of the light source irradiated from the light source irradiation unit transmitted through the waste fat extraction complex collected in the receiving unit.

The light source intensity storage unit 630 stores light intensity data measured by the incident light source intensity measurement unit 610 and the transmitted light source intensity measurement unit 620 and transfers the stored data to the calculation unit 640 .

The calculation unit 640 calculates the absorbance of red blood cells included in the lung fat extraction complex collected during the liposuction procedure by using the intensity of the light source transmitted from the light source intensity storage unit 630 . Absorbance for red blood cells is calculated as in <Equation 1> described above.

7 is a flow chart illustrating a blood loss monitoring method using a risk monitoring device for liposuction surgery according to an embodiment of the present invention.

Referring to FIG. 7 , the lung fat extraction complex generated during the liposuction procedure is collected in the receiving unit (S700). The capacity of the lung fat extract complex collected in the receiving unit is measured in real time, and the change in capacity for a certain period of time is also measured at the same time.

Next, a light source is irradiated to the lung fat extraction complex collected in the receiving unit (S710). At this time, it is preferable to use a light source of a wavelength range of 300 to 500 nm having high absorbance for red blood cells as the irradiated light source.

Next, absorbance of red blood cells of the irradiated light source is measured (S720). Since various materials including pure fat extract are mixed in the lung fat extraction complex, the number of red blood cells is counted by measuring the absorbance of red blood cells in the lung fat extraction complex (S730).

Subsequently, the amount of blood included in the lung fat extraction complex is predicted by calculating the blood volume through the counted number of red blood cells (S740).

Finally, the risk of bleeding is determined by comparing the predicted amount of blood loss with a preset reference value (S750). When the amount of blood loss is measured above a predetermined reference value, a danger signal indicating that the operation is dangerous is generated so that the operator recognizes the risk of the operation.

As described above, the present invention measures the blood volume in the lung fat extraction complex generated during liposuction, and when the measured blood volume increases above a certain reference value, it is notified that large blood vessel damage has occurred during the operation, and in response to this, It provides the effect of securing the reliability and safety of surgery by taking appropriate measures.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

110: skin layer
120: subcutaneous fat layer
130: muscle layer
140: peritoneum
200: risk monitoring device
210: receiving part
220: capacity measurement unit
230: time measuring unit
240: data transmission unit
250, 300: Bleeding amount monitoring sensor
310, 400: light source irradiation unit
320, 600: absorbance calculator
330: red blood cell counting unit
340: blood volume measurement unit
350: risk level determination unit
360: danger signal alarm unit
410: light intensity control unit
420: light source angle adjusting unit
610: Incident light source intensity measuring unit
620: transmitted light source intensity measuring unit
630: light intensity storage unit
640: calculation unit

Claims (8)

a receiving unit for collecting the lung fat extraction complex collected during liposuction; and
A blood volume monitoring sensor located in a specific region of the receiving unit to determine the risk of surgery through the amount of blood included in the lung fat extraction complex,
The blood flow monitoring sensor
a light source irradiation unit for irradiating a light source to the lung fat extraction complex;
an absorbance calculation unit that calculates absorbance of red blood cells of the light source emitted from the light source irradiation unit;
a red blood cell count counting unit for estimating the number of red blood cells included in the lung fat extraction complex using the absorbance calculated through the absorbance calculation unit; and
A blood volume measuring unit for measuring the amount of blood contained in the lung fat extraction complex through the number of red blood cells counted in the red blood cell counting unit,
The absorbance calculator
an incident light source measurement unit for measuring the intensity I _o of the light source incident on the lung fat extraction complex collected in the receiving unit;
a transmission light source measuring unit measuring intensity I _i of the light source that has passed through the lung fat extraction complex;
a light source intensity storage unit for storing the intensity of the light source measured by the incident light source measurement unit and the transmitted light source measurement unit; and
and a calculator for calculating red blood cell absorbance (A) defined as Log (I _o /I _i ) based on the intensities of the incident light source and the transmitted light source stored in the light source intensity storage unit. Device.
The method of claim 1, wherein the receiving portion
a capacity measurement unit for measuring a capacity of the lung fat extraction complex collected in the receiving unit in real time;
a time measurement unit for measuring a time at which the lung fat extraction complex is collected; and
A data transmission unit for transmitting the volume data of the lung fat extraction complex measured by the volume measurement unit and the time data measured by the time measurement unit to the blood loss monitoring sensor.
The risk monitoring device for liposuction further comprising a.
According to claim 1,
Risk determination unit for determining the risk of bleeding by comparing the amount of blood loss measured through the amount of blood loss measuring unit with a predetermined reference value; and
A danger signal alarm unit generating a danger signal when the risk level determination unit determines that the risk of bleeding is high
The risk monitoring device for liposuction further comprising a.
The method of claim 1, wherein the blood volume monitoring sensor
A risk monitoring device for liposuction surgery characterized in that it is covered with a protective cap to prevent damage and contamination by external impurities, and the protective cap is formed of a plastic material that can be deformed according to the shape of the blood loss monitoring sensor. .
The method of claim 1, wherein the light source irradiation unit
A device for monitoring the risk of liposuction, characterized in that a light source of a wavelength range of 300 to 500 nm is irradiated, and the intensity of the light source and the angle of the light source are adjustable according to the capacity of the lung fat extraction complex.
delete The method of claim 3, wherein the risk determination unit
When the amount of blood loss during a certain period of time is measured above a predetermined reference value, a danger signal indicating that the operation is dangerous is transmitted to the danger signal alarm unit;
A device for monitoring the risk of liposuction, characterized in that, when the amount of blood loss for a certain period of time is maintained below a predetermined reference value, a safety signal indicating that the operation is being safely performed is transmitted to the danger signal alarm unit.
According to claim 1,
The amount of bleeding estimated by the blood amount measuring unit is
A device for monitoring the risk of liposuction, characterized in that the red blood cell count (RBC) is calculated as the number of red blood cells per unit blood.