KR20160115619A

KR20160115619A - Indirect suction type vacuum drainage system

Info

Publication number: KR20160115619A
Application number: KR1020150043725A
Authority: KR
Inventors: 서현배
Original assignee: 서현배
Priority date: 2015-03-28
Filing date: 2015-03-28
Publication date: 2016-10-06

Abstract

Discloses an indirect inhalation type vacuum drainage device for generating a negative pressure in a space separated from the vacuum pressure region and transferring the vacuum pressure generated in the vacuum pressure source to the human body without directly transmitting the vacuum pressure generated in the vacuum pressure source to the human body . The apparatus includes a vacuum operating fluid pump (4) that operates with vacuum pressure generated from a vacuum pressure source to generate a negative pressure and deliver the negative pressure to a human body while circulating body fluids such as exudates exchanged from a human body to a drain container. The vacuum operation fluid pump (4) is divided into a vacuum chamber (44) in which the vacuum pressure of the vacuum pressure source is applied and a vacuum chamber (45) which generates negative pressure and sucks and discharges body fluids such as exudates. That is, the problem of contamination of the vacuum pressure generating source by body fluids such as exudates is fundamentally solved.

Description

INDIRECT SUCTION TYPE VACUUM DRAINAGE SYSTEM [0001]

The present invention relates to a vacuum drainage device and a portable aspirator used for discharging a body fluid such as a wound or an exudate swollen at a surgical site out of the body by using vacuum pressure lower than atmospheric pressure, For a new indirect inhalation system.

A device for vacuum drainage, which uses a vacuum to remove wounds and exudates collected at the wound or surgical site and then collects the body fluids from the body for the purpose of treating wounds, or for rapid recovery after surgery or after surgery, 7,004, 915 (Patent Document 1). The apparatus for vacuum drainage is generally a vacuum pump which generates vacuum pressure lower than atmospheric pressure, that is, a vacuum pressure source for generating negative pressure, a generally elongated drain pipe for suction and transfer of body fluids such as exudates, And a drainage vessel, commonly called a canister, for separating and collecting body fluids such as exudates delivered through this conduit from the air.

The source of vacuum pressure is classified into manual type and electric type. Electric type is effective in that it can regulate and maintain the proper negative pressure depending on the tissue of wound or surgical site. Electrically powered, for example, can be a vacuum pump that operates with an electric motor and can be replaced by a vacuum port that is typically located at the bedside of a patient at a hospital or other medical facility. In the case of the manual type, there is also a form in which the liquid container is also used.

A bioabsorbable pad and a suction port are used for the drain conduit procedure. The bioabsorbable pad forms a manifold that can exchange body fluids such as exudates by covering the wound or surgical site. The suction port is fixed on the bioabsorbable pad and is connected to the conduit in a sealed state around the bioabsorbable pad so that body fluids such as exudates are exchanged and transferred from the bioabsorbable pad according to the negative pressure transmitted through the conduit (refer to Patent Document 2, 10-1144422). Unlike the trauma, the catheter can be percutaneously inserted into a surgical site or an alveolar bone in a patient's body. In this case, the catheter is provided in various forms depending on the surgical site tissue or the purpose of the treatment (refer to Patent Document 3, Korean Patent No. 10-1198563 Reference).

The draining container is used for hygienically disposing or analyzing body fluids such as exudates delivered through the conduit. The drain container may be provided in the form of a bag that gradually becomes swollen while being filled with body fluids such as exudates that are conveyed through a conduit in a state of inelastic contracting due to a negative pressure on the side of the vacuum pressure source (refer to Patent Document 4, 1309063). The drainage vessel may also be provided in the form of a rigid barrel having a constant volume, which is a form of collecting body fluids such as exudates by separating them from the air, ie, an air hole that allows the internal air to escape to the outside (Refer to Patent Document 5 below and Korean Patent No. 10-1497776).

Meanwhile, the apparatus for vacuum drainage can be divided into a fixed type and a movable type, and the portable type can also be divided into a tabletop type and a portable type .

The fixed type is a typical type which is fixedly installed on the bedside of the bed in a medical institution such as a hospital and connected to the above-described vacuum port. (See Patent Document 6, Utility Model No. 20-0456798 of the Republic of Korea).

Korean Patent Laid-Open No. 10-2010-0015999 (Patent Document 7) discloses one type of tabletop type product. In this form, the drain container is detachable to the pump equipment and includes a separate connecting unit. The connection unit detachably connects the drain container and the drain conduit. In other words, body fluids such as exudates collected by extracting only the drain container can be collected easily.

Korean Patent No. 10-1212650 (Patent Document 8) shows another type of tabletop type product. It is a form equipped with an ultraviolet lamp that sterilizes body fluids such as collected exudates.

Korean Patent No. 10-0509075 (Patent Document 9) discloses one type of portable product having a small size. This type is a structure that can detach a drain container having a bottle-shaped injection port shape under a pump device having a vacuum pump driven by an electric motor.

Korean Patent No. 10-0978599 (Patent Document 10) discloses another type of portable product. This is a structure that sucks fluid and air inside the lungs in a form that removes the drain container on one side of the pump equipment with the electric motor driven vacuum pump.

US 7,004,915 B2 (2006/02/28) KR 10-1144422 B1 (May 2, 2012) KR 10-1198563 B1 (October 31, 2012) KR 10-1309063 B1 (September 10, 2013) KR 10-1497776 B1 (February 22, 2015) KR 20-0456798 Y1 (11/14/2011) KR 10-2010-0015999 A (2010/02 // 12) KR 10-1212650 B1 (2012/12/12) KR 10-0509075 B1 (2005/08/10) KR 10-0978599 B1 (2010/08/23)

The existing vacuum drainage system is a direct inhalation system in which a vacuum pressure source, a drainage conduit and a drainage container communicate with each other and the vacuum pressure of the vacuum pressure source is directly transferred to the human body to exchange body fluids such as exudates. In such a direct suction system, the vacuum pressure source can be contaminated by the inflow of body fluids such as exudates collected in a drain container via a drain duct, and can not be used any longer as well as fail when contaminated. Pump equipment equipped with a vacuum pump capable of controlling and maintaining the pressure according to a wound or surgical site tissue is expensive and needs to be effectively used for other patients for economic benefit. .

The problem of contamination of the pump equipment can be solved by inserting a gas-liquid separation filter (for example, a well-known hydrophobic filter) into the conduit or the connection path to the drain container for the pump equipment, Can be solved relatively simply. Such a hydrophobic filter can also be applied to a drain container having an air hole for separating body fluids such as exudates from air (see Patent Document 5). However, in this case, if the hydrophobic filter is immersed in body fluids such as exudates, the water level should be strictly restricted, and care should be taken not to tilt the drain container or its product when using it.

In the case of various types of vacuum drainage systems, it is desirable to have a portable type rather than a fixed type and a portable type so as to facilitate convenience and recovery of a patient who can be operated after surgery. Particularly, small and simple portable products can protect patients' self-esteem by allowing patients to live their daily life and carry them invisibly on the outside.

However, since the portable type product is greatly inclined or shaken depending on the wear state or movement of the patient, the vacuum connection passage or the air hole of the drainage container is clogged by body fluids such as the exudates collected as described above, And it was not practical.

On the other hand, in the vacuum drainage procedure, the negative pressure transmitted to the human body should be controlled and maintained at a proper pressure depending on the wound or the tissue of the surgical site. If the negative pressure is too weak, body fluids such as exudates can not be exchanged and delivered smoothly, and excessive use of water may damage cellular tissues. However, even in the case of using a vacuum pump capable of controlling the vacuum pressure, a negative pressure can be weakened or deteriorated due to a temporary abnormal operation, and measures are required to be taken in a timely manner.

The main object of the present invention is to provide a so-called " new " type vacuum pump capable of generating a negative pressure that can be exchanged with body fluids such as exudates in a space separated from an existing direct suction system and separated from a vacuum pressure source (vacuum pump) And to provide an indirect suction type vacuum drainage device.

The indirect inhalation type vacuum drainage device according to the present invention for achieving the above object is a device for evacuating body fluids such as a drainage conduit for delivering a negative pressure to a human body and exchanging body fluids such as exudates from a human body and delivering the same through the drainage conduit, A vacuum evacuation source for evacuating the vacuum, a vacuum evacuation source for vacuum evacuation, and a vacuum evacuation system for evacuating the evacuation conduit, And a vacuum operating fluid pump sucking body fluids such as exudates to be delivered and discharging the fluid into the drain pan.

The apparatus may further comprise means for branching between the drain conduit and the vacuum operating fluid pump to detect the vacuum generated in the vacuum operating fluid pump and to open the vacuum operating fluid pump in a temporary atmospheric state in an excessive case.

The apparatus may further comprise means for branching between the vacuum source and the vacuum operating fluid pump to open to an atmospheric pressure to intermittently exhaust vacuum pressure generated in the vacuum pressure source.

In the apparatus, the vacuum operating fluid pump may include a housing defining a finite size space, the space of the housing being divided into two spaces, a vacuum chamber and a bodily fluid chamber, which may be retracted and expanded after contracting or expanding one of them And a vacuum pilot port is connected to the vacuum chamber to transmit the vacuum pressure to the vacuum chamber. In the vacuum chamber, the drain conduit and the drain container are connected to each other so as to circulate body fluids such as exudates And a check valve for allowing the flow of bodily fluids such as exudates in one direction and shutting off the flow in the opposite direction with respect to the suction port and the discharge port.

The vacuum operating fluid pump further comprises a spring member for elastically supporting the diaphragm so as to expand the diaphragm toward the body fluid chamber in the vacuum chamber and a sensor for sensing the movement of the diaphragm, The vacuum pressure of the vacuum pressure source may be periodically exhausted.

The indirect suction type vacuum drainage apparatus according to the present invention is characterized in that the vacuum pressure generated in the cause of vacuum pressure generation (vacuum pump) is not directly transmitted to the human body but the vacuum pressure generated in the vacuum pressure source So-called vacuum pressure, in which the negative pressure generated by the operating fluid pump is transmitted to the human body, is indirectly transmitted.

Therefore, according to the present invention, it is possible to spatially separate the vacuum passage on the vacuum pressure source side (vacuum pump) side of the vacuum drainage device (suction device) and the vacuum passage of the vacuum operation fluid pump, The problem can be solved fundamentally.

The present invention further includes means for branching between the vacuum pressure source and the vacuum operating fluid pump and opening the vacuum pressure fluid source to an atmospheric pressure state for intermittently exhausting vacuum pressure generated in the vacuum pressure source, It is possible to immediately extinguish the occurrence of excessive negative pressure caused by the pressure gauge, thereby providing an advantageous effect for enhancing the stability to the patient.

The present invention further includes means for branching between the drain conduit and the vacuum operating fluid pump to sense the vacuum generated in the vacuum operating fluid pump and to open the vacuum operating fluid pump in a temporary atmospheric state in an excessive case, It is possible to shorten the discharging operation after the suction operation of the body fluid pump to increase the suction efficiency thereof, and to provide an advantageous effect in miniaturizing the product.

Fig. 1 is a layout diagram showing an outline of an indirect suction type vacuum drainage apparatus according to the present invention.
FIG. 2 is a cross-sectional view showing a preferable structure of a vacuum operating fluid pump provided in an indirect suction type vacuum drainage apparatus according to the present invention.
3 is a suction operation state of the vacuum operating fluid pump shown in Fig.
4 is a state of discharging operation of the vacuum operating fluid pump shown in Fig.
5 is a control circuit diagram of an indirect suction type vacuum drainage apparatus according to the present invention.
6 is a control flow chart of the indirect suction type vacuum drainage apparatus according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are merely illustrative of preferred embodiments of the present invention and are not intended to limit the present invention. In addition, some elements may be exaggerated or omitted in the drawings, and may differ from actual ones.

The vacuum drainage apparatus according to the present invention illustrated in FIG. 1 includes a drain conduit 1, a drainage vessel 2, a vacuum pressure source 3, a vacuum operation fluid pump 4, check valves 5 and 6, Sensing sensor 7, solenoid valves 8, 9, and control circuitry 10. Here, the drain container 2 and the vacuum operation fluid pump 4 may be provided integrally. The vacuum pressure source 3, the negative pressure sensor 7, the solenoid valves 8, 9, and the control circuit 10 may be provided in the form of a module mounted in one case.

The drain conduit 1 is a conventional one for exchanging and delivering body fluids such as exudates and the like by delivering vacuum pressure, i.e., negative pressure, lower than atmospheric pressure to a human body, and it can be delivered in various forms Can be provided. The drainage conduit 1 may be connected to a suction port (not shown) of the type shown in the drawing for covering the skin wound or surrounding the surgical site and inserted percutaneously into the human body.

The liquid drainage container 2 is a container for separating and collecting body fluids such as exudates delivered through the conduit for drainage 1 from the air, and can be generally provided in the form of a bag made of a rigid material or in the form of a flexible material bag have. In the case of a rigid container, there should be an air vent (not shown) through which the internal air can escape to the outside to contain body fluids such as exudates collected as known in the art.

The vacuum pressure generating source 3 is for generating a vacuum pressure, and it may be a vacuum pump operated by an electric motor, a vacuum port provided in a medical institution such as a hospital, or a passive pump.

The vacuum operation fluid pump 4 is connected to a vacuum pressure source 3 and a pneumatic pipeline (not shown) and also connects the drain conduit 1 and the drain conduit 2 directly or by a separate conduit. The vacuum operation fluid pump 4 operates as a vacuum pressure generated in the vacuum pressure generating source 3 to generate the vacuum pressure and transmit the vacuum pressure to the human body through the drainage conduit 1, The body fluid is sucked and discharged to the drain container 2, and body fluids such as exudates are distributed in a region different from the vacuum pressure source 3.

The check valves 5 and 6 inserted into the suction port and the discharge port of the vacuum operation body fluid pump 4 allow the flow of bodily fluids such as exudates in one direction, that is, from the conduit 1 for drainage to the drainage container 2 Blocks flowing backwards.

A negative pressure detection sensor 7 and a first solenoid valve 8 are branched and connected to each other between a suction port of the vacuum operation body fluid pump 4 and the drain conduit 1. The negative pressure sensor 7 is a kind of pressure sensor for detecting an electrical signal generated in the vacuum operation fluid pump 4 and informing the user of excessive negative pressure transmitted to the human body through the conduit for drainage 1. The first solenoid valve 8 is normally closed, which is electrically operated, and is opened during operation. When the first solenoid valve 8 is opened, the drain conduit 1 and the vacuum operating fluid pump 4 are atmospheric pressure. That is, when the negative pressure transmitted from the vacuum operation fluid pump 4 to the human body through the conduit for drainage 1 is detected at all times and the negative pressure is excessively applied, the first solenoid valve 8 is opened, And it is possible to prevent accidental injuries of the human body or damage to the surgical site tissue due to excessive negative pressure during the drainage operation. After the excessive negative pressure is exhausted, the first solenoid valve 8 is returned (closed), so that the vacuum operation fluid pump 4 can operate normally again.

A second solenoid valve 9 is branched and connected to a separate pipe between the vacuum pressure source 3 and the vacuum operation fluid pump 4. The second solenoid valve 9 is also normally closed electrically operated and is open during operation. When the second solenoid 9 is opened, the vacuum pressure generating source 3 becomes atmospheric pressure and its vacuum pressure is exhausted, so that the operation of the vacuum operation fluid pump 4, that is, the negative pressure generation is stopped. By operating the second solenoid 9 at regular intervals, it is possible to smoothly control the pump action for exchanging suction and discharge with body fluids such as exudates according to the negative pressure while generating a negative pressure by the vacuum operating fluid pump 4 intermittently will be.

Fig. 2 shows a preferred embodiment of the above-described vacuum operating fluid pump 4. Figures 3 and 4 show the operation of the vacuum direct operated biphasic pump 4 in its preferred form. More specifically, referring to these drawings, the vacuum operating fluid pump 4 can be provided in a form in which the diaphragm 43 is mounted on the housings 41 and 42 forming a space of finite size. The vacuum operation fluid pump 4 may be attached to the drain container 2 or may be integrally formed with the vacuum container. In this case, a portion of the wall of the drain container 2 may be configured to cover one housing 41 . The diaphragm 43 separates the space in the housings 41 and 42 into two spaces, a vacuum chamber 44 and a body fluid chamber 45. The diaphragm 43 can be expanded or contracted to expand one of the vacuum chamber 44 and the body fluid chamber 45 and shrink the other, for example, a material such as a thin rubber plate. The vacuum chamber 44 has a vacuum pilot port 44a formed therein for connection to a vacuum port provided in a medical institution such as a vacuum pump or a hospital, which is the vacuum pressure source 3 described above. The body fluid chamber 45 is provided with a suction port 45a and a discharge port 45b for connecting the above-described drain conduit 1 and the drain container 2, respectively.

The spring member 46 provided in the vacuum chamber 44 between the one housing 42 and the diaphragm 43 has elasticity and the diaphragm 43 is held in the body fluid chamber 45 as shown in FIG. The vacuum chamber 44 is expanded to push it against the wall surface and is maintained in that state. When the vacuum chamber 44 is evacuated in a vacuum state, it is constricted by the diaphragm 43 to contract as shown in FIG. When the vacuum pressure is released in the contracted state as shown in FIG. 3, it is restored to the initial state shown in FIG.

When the vacuum chamber 44 is evacuated by the vacuum pressure of the vacuum source fluid source 3, the vacuum operation fluid pump 4 gradually contracts the vacuum chamber 44 as the diaphragm 47 moves, So that a negative pressure is generated from the body fluid chamber 45. The negative pressure is delivered to the human body through the drain port 1 connected to the suction port 45a and sucked through the suction port 45a, such as exudates exchanged from the human body through the drain port 1. The gradually expanding body fluid chamber 45 is filled with body fluids such as exudates (FIG. 3).

After the vacuum chamber 44 is contracted to the minimum state and the body fluid chamber 45 is filled with body fluids such as exudates in a state of being expanded to the maximum state as shown in Fig. 3, the vacuum pilot port 44a is opened and the vacuum chamber 44 The vacuum chamber 44 gradually expands while the diaphragm 46 is restored to the initial position as indicated by the imaginary line in FIG. 4 by the elastic force of the spring member 46, 45 are gradually contracted. The body fluids such as exudates that have filled the body fluid chamber 45 are discharged through the discharge port 45b and collected in the above-described drain container 2.

The action of generating the negative pressure and exchanging the body fluids such as the exudates is periodically repeated in order to transmit and exhaust the vacuum pressure to the vacuum pilot port 44a. Accordingly, the operation of continuously collecting and collecting the body fluids such as the exudates is carried out It can be.

The magnet 47 attached to the center of the side of the vacuum chamber 44 side of the diaphragm 43 and the hall sensor 48 provided on the same center line detect the movement of the diaphragm 43 to detect the movement of the second solenoid 9, . The hall sensor 48 outputs a signal when the magnet 47 is close (FIG. 3) and does not output a signal when it is distant (FIG. 2). The output of the Hall sensor 48 is used to actuate (open) the second solenoid 9 in the control circuit 10, which will be described later, in the form of a pulse signal. The cyclic negative pressure generation and the suction / To be repeated continuously. Contact type sensor such as a well-known proximity switch or a contact type sensor using an electrical contact, even if the magnet 47 and the hall sensor 48 are not the same, the movement of the diaphragm 43 or the corresponding movement of the vacuum chamber 44 or the body fluid chamber Any sensor or device that detects a signal capable of controlling the second solenoid valve 9 by sensing the state of contraction and expansion of the second solenoid valve 45 may be possible.

The control for restoring the diaphragm 43 to the spring member 46 and opening the second solenoid valve 9 while sensing the movement of the diaphragm 43 with the hall sensor 48, It is possible to quickly perform the discharge operation after the suction operation of the vacuum operation body fluid pump 4 so as to shorten the total drainage operation time and to increase the suction efficiency by the vacuum operation body fluid pump 4, Thereby providing an advantageous effect on downsizing.

The bracket 49 shown in Figures 2 to 4 may be part of the module case when a sensor such as the Hall sensor 48 is mounted in a module comprising the vacuum pressure source 3, 4) or a structure in which it is possible to connect the vacuum flushing port 44a when the liquid-draining container 2, which is built in or integrally constructed, is detached.

Fig. 5 shows a circuit configuration of the control circuit 10 that can be applied to the present invention. The power source battery 101 is preferably a primary or secondary battery of any type in the case of mobile products and a commercial power source in the case of fixed products. The control unit 102 controls the vacuum pump and the solenoid drive based on the signal of the sensor sensing unit 105 while operating the predetermined control program in accordance with the set conditions in the setting unit 104 using the processing mechanism of the microcomputer, And processes display information. The power supply unit 103 is used to supply and manage the power required for the circuit parts such as the control unit 102 from the power source of the battery 101. For example, a well-known PMIC (power management IC) can be used. The setting unit 104 may be configured as an input circuit for directly setting conditions necessary for the vacuum drainage operation such as operation time and negative pressure setting, or selecting a predetermined operation mode. The sensor detection unit 105 may be configured as an analog / digital conversion circuit for converting the analog signal output from the negative pressure detection sensor 7 and the hall sensor 48 into digital data required for the control unit 102. The vacuum pump driving unit 106 may be configured as a switching circuit for interrupting the driving voltage of a vacuum pump operating as an electric motor as the vacuum pressure generating source 3. The solenoid driving unit 107 may be configured as a switching circuit for interrupting the driving voltages of the first and second solenoid valves 8 and 9 described above. The display unit 108 may be configured as an output circuit that outputs the display information processed by the control unit 108 to a display device such as a monitor in real time. Since these control circuit units can be implemented at a level of ordinary skill, the detailed description will be omitted for the sake of convenience.

Next, Fig. 6 is a flowchart illustrating the control operation by the above-described control circuit. Step S1 is a step of setting the operating conditions such as the operating time and the vacuum pressure. Step S2 is a step of starting driving of the vacuum pump for generating the vacuum pressure and counting the operation time thereof. Steps S3 to S5 are control procedures for opening the first solenoid valve 8 for a predetermined time in excess when compared with the vacuum pressure set based on the signal input in real time from the negative pressure sensor 7 described above. Steps S6 and S7 are control procedures for opening the second solenoid valve 8 described above for a predetermined time based on the signal of the hall sensor 48 described above. Steps S8 and S9 are a process for notifying the drainage container 2 with an alarm when it is filled with body fluids such as exudates to be collected. This is a method for detecting the level or weight of body fluids such as exudates It would be possible by installing a separate sensor. Step S10 is a step for finishing all the operations when the cumulative counted operation time reaches the set time. The mode control process after the step S3 is repeated until the operation time reaches the set time.

The most important feature of the present invention as described through the above embodiments is that the vacuum pressure generated in the vacuum working fluid pump 4 is not directly transmitted to the human body, Which is a new indirect suction system. The vacuum operation body fluid pump 4 generates a negative pressure in the body fluid chamber 45 which is separated from the vacuum chamber 44 connected to the vacuum pressure source 3 and allows the body fluid such as exudates to flow. Therefore, it is possible to enhance the safety of the product by fundamentally solving the problem that the body fluids such as exudates are introduced into the vacuum pressure generating source (3).

1: Drain port, 2: Drain container, 3: Vacuum pressure source, 4: Vacuum operation fluid pump, 5: 6: Check valve, 7: Negative pressure sensor, 8; 9: Solenoid valve, 10: 44: vacuum pilot port, 45: fluid chamber, 46: spring member, 47: magnet, 48: hall sensor

Claims

A drainage conduit for delivering negative pressure to a human body and exchanging body fluids such as exudates from a human body, a drainage container for collecting body fluids separated from air, such as exudates delivered through the drainage conduit, a vacuum pressure source for generating vacuum pressure And a vacuum pump connected to the drain pipe and the drain container and operated by the vacuum pressure of the vacuum pressure source to suck body fluids such as exudates exchanged and delivered through the drain pipe while generating the negative pressure, And an actuating body fluid pump.

[2] The apparatus according to claim 1, further comprising means for branching between the drain conduit and the vacuum operating fluid pump to detect the negative pressure generated in the vacuum operating fluid pump and to open the valve in a temporary atmospheric pressure state in an excessive case Indirect suction type vacuum drainage device.

The vacuum cleaner according to claim 1, further comprising means for branching between the vacuum pressure source and the vacuum operating fluid pump to open the vacuum pressure fluid to an atmospheric pressure state for intermittently exhausting vacuum pressure generated in the vacuum pressure source Suction type vacuum drainage device.

The vacuum operating fluid pump according to any one of claims 1 to 3, wherein the vacuum operating fluid pump comprises a housing defining a space of a finite size, the space of the housing being divided into a vacuum chamber and a bodily fluid chamber which are two spaces and either contracting or expanding And the vacuum chamber has a vacuum pilot port connected to the vacuum pressure generating source to transmit the vacuum pressure, and the vacuum duct port and the drain box are connected to the body fluid chamber, respectively, And a check valve for allowing flow of bodily fluids such as exudates in one direction and shutting off flow in the opposite direction to the suction port and the discharge port, wherein the suction port and the discharge port are capable of distributing bodily fluids such as exudates Suction type vacuum drainage device.

The vacuum pump according to claim 4, wherein the vacuum operating fluid pump includes a spring member for elastically supporting the diaphragm so as to expand the diaphragm toward the body fluid chamber in the vacuum chamber, and a sensor for sensing movement of the diaphragm, Wherein the control unit is configured to be able to periodically exhaust the vacuum pressure of the vacuum pressure source.