KR20220166551A - Portable negative pressure pump module for negative pressure stretcher - Google Patents

Abstract

The present invention relates to a negative pressure pump module. More specifically, the present invention is intended to provide a negative pressure pump module which makes air flow flexibly in a negative pressure chamber, facilitates the replacement of a filter, and includes a negative pressure pump with a flow path configuration that allows air which is introduced and discharged to flow quickly and smoothly. According to one embodiment of the present invention, a negative pressure pump module comprises: a chamber main body part in which a predetermined space is formed and which includes a support part so that a patient can be transported while lying down; a negative pressure pump part which is coupled and installed on one side of the chamber main body part and keeps the inside of the chamber main body part at a negative pressure; and a communication part which is formed in the chamber main body part and includes an inflow part through which external air is introduced and an outflow part through which internal air is discharged.

Description

Portable negative pressure pump module for negative pressure stretcher}

The present invention relates to a portable negative pressure pump module for a negative pressure stretcher, and more particularly, has a flow path configuration that makes the air flow in the negative pressure chamber flexible, filter replacement is easy, and the air flow in and out is made fast and smooth. It relates to a portable negative pressure pump module.

Unless otherwise indicated herein, material described in this section is not prior art to the claims in this application, and inclusion in this section is not an admission that it is prior art.

Recently, as fine dust from China increases, various mask products for filtering fine dust are being released. In recent years, fine dust has become a daily life in Korea, and in spring, we are used to seeing the sky hazy due to fine dust, and accordingly, we can often see people wearing masks to block fine dust on days when the fine dust index is high. The fine dust is composed of very small particles that may not be seen by the human eye and may not be a great threat, but fine dust enters deep into the lungs of a person and accumulates, causing various diseases. For example, fine dust entering through the respiratory tract can cause allergic rhinitis or inflammation by contacting the retina of the eye, and in severe cases, can cause bronchitis, laryngitis, and even pneumonia.

In addition, as we experienced infectious diseases such as SARS in 2003 and MERS in 2015, the importance of hygiene as well as quarantine has increased significantly. I am trying to realize and overcome. Infectious diseases through these viruses are transmitted through the respiratory tract, and the rate of infection is quite fast, and it is not easy to trace the route of infection from where and from whom, so it can be seen that immediate isolation of infected people is essential. In particular, secondary infection can occur when a confirmed infectious disease patient comes for treatment or infects nearby medical staff, other patients in the hospital, or outside visitors from inside the ward after being hospitalized. and get treated.

Here, in the case of suspected infection, it is necessary to maintain as much isolation as possible before coming to the negative pressure ward, but in reality, it is not easy to be transported in an isolated state. It is necessary to isolate suspected infected persons from the transfer stage. As an example of this, Korean Patent Registration No. 10-2160896 discloses a "negative pressure bag for transporting a patient", and more specifically, "blocks the spread of secondary contamination by isolating a patient contaminated with harmful substances." Content configured to facilitate filter replacement while preventing the negative pressure bag from being torn due to the weight of the patient when the patient is transported using a movable negative pressure bag used to quickly move the patient to the most stable position while moving the patient. .

However, in the case of the negative pressure bag for transporting the patient, it is inconvenient to install through a separate fixing device in order to fasten the negative pressure pump to the stretcher, and there is a disadvantage that the entire negative pressure pump must be replaced in order to replace the filter. In addition, there is a problem in that a sense of closure can be created in an enclosed space as air flow does not occur smoothly when a person lies down by configuring an outside air inlet and an internal air outlet on the front and rear surfaces of the negative pressure bag.

1. Korean Patent Registration No. 10-2160896 (Announced on September 28, 2020)

It is intended to provide a portable negative pressure pump module having a flow path configuration that makes air flow in the negative pressure chamber flexible, filter replacement is easy, and air flow in and out is made fast and smooth.

In addition, it is not limited to the technical problems as described above, and it is obvious that other technical problems may be derived from the following description.

Negative pressure pump module according to an embodiment of the present invention, a predetermined space is formed therein, a chamber main body including a support so that a patient can be transported while lying down, and coupled to one side of the chamber main unit, the chamber main unit It includes a negative pressure pump unit maintaining the inside at a negative pressure, and a communication unit formed in the chamber body and including an inlet unit through which outside air flows in and an outlet unit through which internal air is discharged.

According to a preferred feature of the present invention, the negative pressure pump unit, a suction fan for sucking the air inside the chamber body through the discharge unit, a central flow path for collecting the air sucked from the suction fan to the center, and the center A spiral passage formed to flow the air collected from the mold passage in a circumferential direction, a separation passage that separates the air moving along the spiral passage into both sides, and discharging the air separated along the separation passage to the outside, It is characterized in that it further comprises a plurality of filters coupled to one side of the negative pressure pump unit in a detachable manner.

According to a preferred feature of the present invention, the inlet is formed on the upper portion of the chamber body and includes a plurality of inlets equipped with HEPA filters.

According to a preferred feature of the present invention, the discharge unit is formed on the side of the chamber body and is connected to the negative pressure pump unit through a connecting pipe.

According to a preferred feature of the present invention, it is formed on one side of the chamber body, characterized in that it further comprises a pump receiving portion for accommodating the negative pressure pump portion.

According to a preferred feature of the present invention, the separation-type flow path is characterized in that it is formed of a barrier rib shape extending from an end of the spiral flow path to the filter.

According to a preferred feature of the present invention, it is characterized in that it further comprises a differential pressure measuring tube for interconnecting the chamber main body and the negative pressure pump, and for measuring the differential pressure between the inside of the chamber main body and outside air.

According to a preferred feature of the present invention, it further includes a control unit installed inside the negative pressure pump unit, wherein the control unit determines the amount of air (A) introduced from the inlet unit and the amount of air discharged to the outside through the plurality of filters ( It is characterized in that it is controlled to be less than B).

According to the present invention, there is an advantage that sterilization can be performed by simply separating only the filter without disassembling the entire negative pressure pump for filter replacement through the filter coupled to the negative pressure pump in a detachable manner.

In addition, according to the present invention, there is an advantage in that a comfortable environment can be created by creating air flow in the sealed negative pressure chamber by introducing air from the top of the negative pressure chamber to the negative pressure pump along the top of the head.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a perspective view of a negative pressure pump module according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of a negative pressure pump module according to an embodiment of the present invention.
Figure 3 is a view showing the inner bottom surface of the negative pressure pump module according to an embodiment of the present invention.
Figure 4 is in the negative pressure pump module according to an embodiment of the present invention, a view showing the air flow inside the chamber main body.
5 is a view showing a flow path formed inside the negative pressure pump unit and air flow accordingly in the negative pressure pump module according to an embodiment of the present invention.
Figure 6 is a view showing a state in which the negative pressure pump unit is mounted on the chamber body unit in the negative pressure pump module according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, look at the configuration, operation and effect of the negative pressure pump module according to a preferred embodiment. For reference, in the drawings below, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, like reference numerals refer to like components throughout the specification, and reference numerals for like components in individual drawings will be omitted.

The negative pressure pump module according to an embodiment of the present invention includes a chamber main body 10 having a predetermined space therein and including a support 11 so that a patient can lie down and be transported, and the chamber main body 10 A negative pressure pump 20 coupled to one side of the chamber body 10 to maintain the inside of the chamber body 10 at a negative pressure, and an inlet 31 formed in the chamber body 10 and into which outside air flows, and internal air It includes a communication part 30 including a discharge part 33 for discharging.

The chamber main body 10 may be formed of a chamber in which a predetermined space is formed so that a patient, such as an infected person or a person suspected of infection, can lie down and be transported. It may be made to be closed on all sides. In addition, a support part 11 made of a mat shape may be formed in the lower part of the chamber main part 10 so that the patient can lie down comfortably, and a plurality of fixing belts interconnecting both sides of the lower part of the chamber main part 10 ( 13), the support part 11 can be stably supported.

Next, a negative pressure pump unit 10 for maintaining the inside of the chamber body unit 10 at a negative pressure may be coupled to one side of the chamber body unit 10 . The negative pressure pump unit 10 discharges air inside the chamber body unit 10 to the outside through a suction fan 21 described later, and is installed on one side of the chamber body unit 10 adjacent to the part where the patient's head is located. It is desirable to ensure that the air flow is made in the patient's head.

According to a preferred feature of the present invention, it is formed on one side of the chamber body portion 10, characterized in that it further comprises a pump accommodating portion 50 for accommodating the negative pressure pump portion 20.

As a method for coupling and installing the negative pressure pump unit 20 to the chamber body unit 10, a method of mutual coupling through a separate coupling means is also possible, but in one embodiment of the present invention, the pump receiving unit 50 A method of bonding is disclosed. More specifically, the chamber body 10 is preferably made of a material that holds the overall appearance or skeleton like an air mat, and one side of the chamber body 10 is made of the same material as the outer shell of the air mat A pump accommodating portion 50 for accommodating the negative pressure pump portion 20 while holding may be formed to extend. In addition, in a state where the negative pressure pump unit 20 is accommodated in the pump receiving unit 50, a connection pipe 40 formed to introduce air inside the chamber body unit 10 or a filter 29 for discharging air to the outside ), a plurality of communication holes may be formed so that the differential pressure measurement pipe 60 to be described later may pass therethrough.

According to a preferred feature of the present invention, the negative pressure pump unit 20 includes a suction fan 21 for sucking air inside the chamber main unit 10 through the discharge unit 33, and the suction fan 21 ), a central flow path 23 for collecting the air sucked from the central flow path 23, a spiral flow path 25 formed to flow the air collected from the central flow path 23 in a circumferential direction, and the spiral flow path 25 A separation type flow path 27 for separating the air moved along to both sides, and a plurality of detachable couplings to one side of the negative pressure pump unit 20 for discharging the air separated along the separation type flow path 27 to the outside. Characterized in that it further comprises a filter (29).

There are various components constituting the negative pressure pump unit 20, and first, it may include a suction fan 21 for sucking air inside the chamber main unit 10. The suction fan 21 is driven by a motor that operates an air suction action, and the air inside the chamber main body 10 passes through a connection pipe 40 connected to the negative pressure pump 20 to remove the negative pressure pump 20. ) is inhaled. The air sucked in by the suction fan 21 flows inside the negative pressure pump unit 20, and the purified air is finally discharged to the outside through the filter 29. A flow path may be formed for More specifically, a central flow passage 23 may be formed to collect the air sucked from the suction fan 21 toward the center. The central flow path 23 is configured to centrally collect the air introduced from the side of the negative pressure pump unit 20 through the connection pipe 40, and may have a conical structure with a gradually smaller diameter, and thus suction The air formed does not diverge and forms a constant flow toward the center. The air collected through the central flow path 23 flows in the circumferential direction through the spiral flow path 25 . The spiral flow path 25 may be formed as a spiral partition wall whose diameter gradually increases from the end of the central flow path 23, and air flows in a whirlwind along the circumferential direction by the spiral flow path 25 thus formed. The air moved in this way is discharged to the outside through a plurality of filters 29 formed on one side, preferably at the bottom, of the negative pressure pump unit 20. Even if a plurality of filters 29 are installed, the air is equally distributed to each filter There is a problem that it is not supplied to (29). Accordingly, a separation type flow path 27 separating the air moving through the spiral flow path 25 into both sides may be formed on the inner wall of the negative pressure pump unit 20 .

According to a preferred feature of the present invention, the separation-type flow path 27 is characterized in that it is formed of a barrier rib shape extending from the end of the spiral flow path 25 to the filter 29.

The separation-type flow path 27 may be formed as a partition wall protruding along the inner wall of the negative pressure pump unit 20, and is configured to extend from the center of the plurality of filters 29 at the point where the spiral flow path 25 ends. As a result, the air separated from the separable flow path 27 is equally distributed to each filter 29 and discharged, so that air flow can be performed smoothly and quickly. In addition, since the separation type flow path 27 is formed, the air delivered from the spiral flow path 25 can be stably supplied to the plurality of filters 29 without flowing backward.

According to a preferred feature of the present invention, the inlet 31 is formed on the upper part of the chamber body 10 and includes a plurality of inlets equipped with HEPA filters.

In addition, according to a preferred feature of the present invention, the discharge unit 33 is formed on the side of the chamber body unit 10 and connected to the negative pressure pump unit 20 through a connection pipe 40. .

The inlet part 31 may be formed on the upper part of the chamber body part 10, preferably on the upper part adjacent to the place where the patient's face is located, and the discharge part 33 is formed on the side of the chamber body part 10. In such a way, the flow of air is configured to be formed around the head of a patient lying on the chamber body 10. Accordingly, there is an advantage in that patients can create a sense of security without feeling closed feelings even in an enclosed space without air flow. Here, the inlet 31 may be equipped with a HEPA filter to primarily purify the incoming outside air and then introduce it into the inside, and may have one or more suction ports so that the air is smoothly introduced. In addition, while the discharge unit 33 is connected to the negative pressure pump unit 20 through the connecting pipe 40, the air inside the chamber main body 10 is discharged to the discharge unit 33 through the suction fan 21.

According to a preferred feature of the present invention, the chamber main body 10 and the negative pressure pump 20 are connected to each other, and the differential pressure measuring tube 60 for measuring the differential pressure between the inside of the chamber main body 10 and outside air It is characterized in that it further comprises.

The differential pressure measurement pipe 60 is configured to check whether or not negative pressure is maintained in the air inside the chamber main body 10, and is composed of a tube or the like that interconnects the chamber main body 10 and the negative pressure pump 20. It can be made, the principle measures the pressure difference between the outside (ambient pressure) of the negative pressure pump part 20 and the inside of the chamber body part 10, where the differential pressure measuring pipe 60 is in the chamber body part 10 It is directly connected to bring pressure information inside the chamber main unit 10, and the outside of the negative pressure pump unit 20 has a hole in the exterior of the negative pressure pump unit 20, so it can be measured through it.

According to a preferred feature of the present invention, it further includes a control unit (not shown) installed inside the negative pressure pump unit 20, wherein the control unit controls the amount of air (A) introduced from the inlet unit 31, It is characterized in that it is controlled to be less than the amount of air (B) discharged to the outside through a plurality of filters (29).

A control unit for maintaining the inside of the chamber main unit 10 at a negative pressure may be formed inside the negative pressure pump unit 20. Through the control unit, the amount of air (A) introduced from the inlet unit 31 is By controlling the amount of air B discharged to the outside through the filter 29 to be less than the negative pressure inside the chamber main body 10, it is possible to prevent infectious agents from being discharged to the outside from the patient being transported as much as possible.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and represent all the technical ideas of the present invention. Since it is not, it should be understood that there may be various equivalents and modifications that can replace them at the time of this application. Therefore, the embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and their All changes or modified forms derived from equivalent concepts should be construed as being included in the scope of the present invention.

10: chamber body
11: support
13: fixed belt
20: negative pressure pump unit
21: suction fan
23: central oil passage
25: spiral flow path
27: Separable flow path
29: filter
30: communication part
31: inlet
33: discharge unit
40: connection pipe
50: pump receiving part
60: differential pressure measuring pipe

Claims (8)

A chamber body portion having a predetermined space formed therein and including a support portion so that the patient can lie down and be transported;
a negative pressure pump unit coupled to one side of the chamber body and maintaining a negative pressure inside the chamber body; and
a communication unit formed in the chamber body and including an inlet through which outside air flows in and an outlet through which internal air is discharged;
A negative pressure pump module comprising a. According to claim 1,
The negative pressure pump unit,
a suction fan for sucking air inside the chamber main body through the discharge unit;
a central oil passage that gathers the air sucked from the suction fan to the center;
a spiral flow passage formed to flow the air collected from the central flow passage in a circumferential direction;
a split-type flow path that separates the air moving along the spiral flow path into both sides;
a plurality of filters detachably coupled to one side of the negative pressure pump unit and discharging air separated along the separation-type flow path to the outside;
A negative pressure pump module further comprising a. According to claim 1,
The inlet part is formed on the upper part of the chamber body part and includes a plurality of inlets equipped with HEPA filters. According to claim 1,
The discharge unit is formed on the side of the chamber body and is connected to the negative pressure pump unit through a connection pipe. According to claim 1,
Formed on one side of the chamber main body, the negative pressure pump module characterized in that it further comprises a pump accommodating portion for accommodating the negative pressure pump. According to claim 2,
The separation-type flow path is a negative pressure pump module, characterized in that consisting of a bulkhead shape extending from the end of the spiral flow path to the filter. According to claim 1,
The negative pressure pump module further comprises a differential pressure measuring tube for interconnecting the chamber body and the negative pressure pump and measuring a differential pressure between the inside of the chamber body and the outside air. According to claim 2,
Further comprising a control unit installed inside the negative pressure pump unit,
The control unit,
The negative pressure pump module, characterized in that the control so that the amount of air (A) introduced from the inlet is less than the amount of air (B) discharged to the outside through the plurality of filters.

Images