KR20190030976A - Respiratory gas-humidifier for an artificial respiration apparatus - Google Patents

Abstract

The present invention relates to a respiratory gas humidifier for an artificial respirator, which has a simple structure and very small size to be easily used even when transporting a patient as well as in an operating room or an intensive care unit with space constraints, and can stably supply a physiologically suitably humidified respiratory gas to the patient by preventing the generation of a phenomenon that water vapor is condensed and stagnant in the process of transferring the respiratory gas to the patient. To this end, the respiratory gas humidifier of the present invention comprises: a body including a tubular mixing unit of which both end portions are connected to a suction pipe and a branch pipe respectively, and a tubular heating unit which is formed by extending in the direction perpendicular to a longitudinal direction of the mixing unit from a side surface of the mixing unit; and a cylindrical heating module inserted into and coupled to an opened end portion of the heating unit. The mixing unit and the heating unit are divided by a separation film enabling only water vapor generated in the heating unit to pass through the mixing unit. On an upper end of the heating module, provided is a heating plate which is heated by receiving power supplied from the outside and is covered with an insulating member. The separation film and the upper end of the heating module are spaced apart from each other to form a heating space therebetween, and a water supply pipe for supplying water from the outside to the heating space is formed to be communicated with a side surface of the heating unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a respiratory gas humidifier for a respirator,

The present invention can be used not only in an operating room or an intensive care unit room which is limited in space because of its simple structure and a very small size, but also in transportation of a patient, and in the process of delivering respiratory gas to a patient, condensation of water vapor does not occur, And a respiratory gas humidifying device for an artificial respirator capable of stably supplying a respiratory gas to a patient.

If the patient's ventilatory function is deteriorated and the patient's respiration alone can not maintain the pulmonary blood gas exchange, an artificial respirator, which is a mechanical device, is used to artificially breathe.

FIG. 1 schematically shows the structure of such a conventional ventilator. An end of an inspiratory tube 70 and an expiratory tube 80 are connected to a ventilator 50, respectively. The ventilator 50 sends the breathing gas to the intake pipe 70 in accordance with the set one-minute volume, the pressure, the breathing water, the oxygen concentration, the intake flow rate, the intake time,

One end of a Y-piece connector 90 is coupled to the other end of the intake tube 70 and the arcuate tube 80. The other end of the branch tube 90 is connected to the patient P, To a respiratory mask to be worn by a patient or to a separate tube that is inserted directly into the patient's airway.

The respiratory gas supplied through the suction pipe 70 is delivered to the patient P via one side of the branch pipe 90 and the exhaust gas discharged by the patient P passes through the other side of the branch pipe 90, 80 to the ventilator 50 and processed.

Since the respiratory gas supplied to the patient P from the central supply device installed in the sickroom or the operating room or the oxygen storage container through the ventilator 50 is not only very low in temperature but also dried, In some cases, it can cause serious problems such as epithelial damage, body temperature loss, and atelectasis.

A general method for appropriately adjusting the temperature and / or humidity of the respiratory gas supplied to the patient P is as shown in Fig. 1, in which the warming up of the intake tube 70 and / .

For example, in Korean Patent Laid-Open No. 10-2011-0085245 (published on July 27, 2011), distilled water contained in a vaporizer is vaporized into a particulate form by ultrasonic vibration by a vibrator in a state that the distilled water is contained in a replaceable cartridge Thereby enabling the instantaneous humidification, and the vaporizer main body and the suction tube are respectively provided with heating means to maintain the temperature of the gas.

However, since the warming and / or humidifying device has a considerable weight and volume, the space heating and / or humidifying device suffers from a considerable spatial limitation in use in an operating room or an intensive care unit room having a large number of medical equipments or in transportation of a patient.

The conventional heating and / or humidifying device is generally placed close to the ventilator because of the space restriction due to the size and weight of the device itself.

Therefore, the length of the intake pipe connecting the ventilator to the heating and / or the humidifying device is relatively short, while the intake pipe connecting the warming and / or humidification device and the patient is relatively long.

When the humidified breathing gas is supplied to the patient through a relatively long suction tube, the condensation water may condense in the tube due to the condensation of the water vapor in the suction tube due to the temperature difference between the inside and the outside of the breathing tube.

If the condensation of the respiratory gas continues in the respiratory tract, condensation may occur on the curved portion of the respiratory tract, which may block the respiratory tract and, in severe cases, lead to medical accidents.

In addition, conventional devices have a high manufacturing cost, which may increase the burden on the patient, and when reused through disinfection or the like, there is a risk of cross infection.

Korean Patent Publication No. 10-2011-0085245 (published on July 27, 2011)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide an ophthalmologic apparatus and an ophthalmologic apparatus which can be easily used not only in an operating room or intensive care unit, Which is capable of supplying physiologically appropriate humidified respiratory gas to a patient in a stable manner without generating a phenomenon of condensation and condensation of the respiratory gas.

In order to achieve the above object, a respiratory gas humidification device for an artificial respirator according to the present invention is interposed between an intake pipe and a branch pipe of a breathing apparatus for an artificial respirator including an intake pipe, a hose pipe and a branch pipe A tubular mixing portion having both end portions connected to the intake pipe and the branch pipe, and a tubular heating portion extending from a side surface of the mixing portion in a direction perpendicular to the longitudinal direction of the mixing portion, Body; And a cylindrical heating module inserted and coupled to the open end of the heating part, wherein the mixing part and the heating part are partitioned by a steam selective permeation separation membrane that allows only steam generated in the heating part to pass to the mixing part side A heating plate which is heated by receiving power from the outside is provided on an upper end of the heating module by an insulating member and the upper ends of the separation membrane and the heating module are spaced from each other to form a heating space therebetween, And a water supply pipe for supplying water from the outside to the heating space is formed in the side surface.

The respiratory gas humidification device for the respirator has a role of supporting and fixing the separation membrane, and may include an annular packing member fixedly attached to the inner circumferential surface of the heating space.

The respiratory gas humidification device for the respirator may further include a pressing switch for turning on / off the power supplied to the heating plate on the outer circumferential surface of the heating module, The pressing member may be pressed against the inner peripheral surface of the heating unit.

In the respiratory gas humidifier for the respirator, a locking protrusion protruding outward is formed on an outer circumferential surface of the heating module, and a locking groove for inserting and fixing the locking protrusion may be formed in the heating portion.

In addition, in the respiratory gas humidification device for the respirator, the water supply pipe may be provided with a valve for turning on / off water supply to the heating space.

In addition, in the respiratory gas humidifier for the respirator, an empty hollow cylindrical holder may be coupled to the outside of the heating unit.

The respiratory gas humidifying device for a respirator according to the present invention has a simpler structure and a very small size compared with a conventional humidity control device having a considerable weight and size, It can be easily applied to the respiratory tube for respiration.

In addition, since humidified breathing gas can be provided at a distance from the patient, condensation of water vapor does not occur during delivery of the breathing gas to the patient, so that physiologically appropriate humidified breathing gas can be stably supplied to the patient have.

Furthermore, the respiratory gas humidifying device for a respirator according to the present invention can be manufactured at a lower cost than the conventional humidity adjusting device and can be replaced easily, thereby reducing the risk of infection due to economic burden or reuse of the patient .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a conventional ventilator; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a respiratory gas humidification device for an artificial respirator.
FIG. 3 is a perspective view of a respiratory gas humidifying device for a respirator according to the present invention. FIG.
FIG. 4 is an exploded perspective view of a respiratory gas humidifier for a respirator according to an embodiment of the present invention; FIG.
5 is an exploded perspective view of a heating module according to the present invention;
6 and 7 are respectively an exploded perspective view of a respiratory gas humidification device for a respirator according to another embodiment of the present invention,
8 is a cross-sectional view in accordance with an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

FIG. 3 is a perspective view illustrating a respiratory gas humidifier 100 for a respirator according to an embodiment of the present invention. Referring to FIG. 2, 4 is an exploded perspective view of the respiratory gas humidification device 100 for a respirator.

Generally, the respiratory tract system for a respirator comprises an intake tract 70, a trolley 80, and a branch 90.

The intake tract 70 serves to deliver the respiratory gas supplied from the ventilator 50 to the patient P and the esophagus 80 serves to vent the exhaust gas excreted by the patient P to the ventilator 50 It plays a role.

The branch pipe 90 is a Y-piece connector which is branched into a substantially Y-shaped pipe. A breathing port 91 connected to the patient P side is formed at one end, 92 and an exhaust port 93 are formed. At this time, the breathing apparatus 15 may be connected to a respiratory mask worn by the patient P, or a separate tube directly inserted into the airway of the patient P.

One end of the intake pipe 70 and the other end of the arbor tube 80 are connected to the ventilator 50 and the other end of the intake pipe 70 is connected to the intake port 92 of the branch pipe 90, And is coupled to the exhaust port 93.

2, the respiratory gas humidification device 100 for an artificial respiratory apparatus according to the present invention is constructed in such a manner that an air intake pipe 70 is interposed between the intake pipe 70 and the branch pipe 90 in the conventional ventilator pipe system for a respirator, .

The respiratory gas humidifier 100 for a respirator according to the present invention may be a nasal cannula, a simple mask, a venturi mask, a partial respiratory mask, a non-respiratory mask, May be interposed between the intake tube 70 and any one of oxygen supplying means such as an oxygen conserving cannula, a transtracheal catheter, a nasal catheter, a facial tent, .

The respiratory gas humidifying apparatus 100 for a respirator includes a body 1 and a heating module 2.

The body 1 includes a cylindrical tubular mixing section 10 having both end portions connected to the intake tube 70 and the branch tube 90 and a mixing section 10 extending from the side (outer circumferential surface) Shaped heating section 11 extending in a direction perpendicular to the longitudinal direction of the heating section 11. Accordingly, the mixing portion 10 and the heating portion 11 have a structure in which the inner space communicates with each other, and the side surface of the body 1 has a substantially 'T' shape.

The mixing unit 10 and the heating unit 11 constituting the body 1 may be integrally formed and the mixing unit 10 and the heating unit 11 may be respectively formed and joined together by various known methods. You may.

One end of the mixing section 10 is connected to one end of the intake pipe 70 and the other end is connected to the intake port 92 of the branch pipe 90.

When the diameters of both ends of the mixing portion 10 do not match the diameters of the intake pipe 70 and / or the intake port 92, they may be connected to each other via an adapter tube.

The mixing unit 10 is a space in which water vapor V is mixed with dry respiratory gas G supplied from the ventilator 50 through the intake pipe 70.

The heating unit 11 is a space which functions together with the heating module 2 to be described below to serve to generate water vapor V by heating the water W.

Water (W) means distilled water and is used interchangeably throughout the description of the present invention.

The respiratory gas G mixed with the water vapor V in the mixing unit 10 and having a physiologically suitable humidity is supplied to the suction port 92 of the branch pipe 90 connected to the other end of the mixing unit 10 and the breathing port 91 To the patient P.

The mixing section 10 and the heating section 11 are spatially separated by the separation membrane 12.

The separation membrane 12 has a water vapor selective permeability which allows only the water vapor V generated in the heating section 11 to pass to the mixing section 10 side.

That is, a variety of known membranes which can pass water vapor (V) but not water (W) can be employed in the separation membrane (12), and water vapor V ) Can pass through the separation membrane (12) and move to the mixing section (10).

A substantially columnar heating module 2 is inserted into the open end of the heating part 11.

At the upper end of the heating module 2, a heating plate 22, which receives power from the outside and generates heat, is covered with an insulating member 21.

The heating module 2 is electrically connected to an external controller (not shown) for controlling the operation of the heating plate 22 by a power line 25.

The insulating member 21 is formed of a material having insulation and heat resistance. When the heating module 2 is inserted into the heating section 11, the outer surface of the insulating member 21 is brought into close contact with the inner wall of the heating section 11, whereby water W leaks from the heating space S It is preferable to be formed of a material having an elastic force.

When the heating module 2 is inserted into the heating unit 11 and coupled thereto, the upper end of the heating module 2 is spaced apart from the separation membrane 12 at regular intervals.

The lower end of the separation membrane 12 and the upper end of the heating module 2 are spaced from each other to form a heating space S therebetween.

An O-ring or a ring-shaped packing member 13 is brought into close contact with the inner peripheral surface of the heating space S in such a manner as to come into contact with the lower end of the separating membrane 12, as shown in Figs. 4, 6 and 8 . The packing member 13 serves to support and fix the separation membrane 12 and to prevent physical damage to the separation membrane 12.

The packing member 13 is preferably made of a material having an elastic force such as rubber, silicone, or the like.

A water supply pipe 15 for supplying water W from the outside to the heating space S is formed in the side surface of the heating part 11.

3 (a), the water W is continuously supplied from the outside through the water supply pipe 15 or the water supply pipe 15 is separately provided with the valve 16 as shown in Fig. 3 (b) So that the supply of water W can be turned on and off as needed.

When the handle 162 of the valve 16 is rotated clockwise or counterclockwise by 90 degrees, the channel of the water supply pipe 15 is shut off and the through hole 161 formed in the valve 16 is rotated again, (See Figs. 4 and 6). However, it is needless to say that the structure and the shape of the valve 16 are not limited to the example shown in the drawings, and a variety of known valves may be used.

The valve 16 can be closed (off state) after the water W is supplied to the heating space S through the water supply pipe 15. When the valve 16 is in the open state, The water can be continuously supplied from the outside.

The water W supplied through the water supply pipe 15 to the heating space S of the heating unit 11 is heated by the heating module 2. [

That is, when power is applied to the heating plate 22 located at the upper end of the heating module 2, the heating plate 22 generates heat, and the heat generated in the heating plate 22 flows to the water W) to generate water vapor (V).

The water vapor V generated in the heating space S passes through the steam selective permeation separation membrane 12 and moves to the mixing section 10 and the dry breathing gas supplied from the ventilator 50 through the intake pipe 70 And is supplied to the patient P through the suction port 92 of the branch pipe 90 connected to the other end of the mixing unit 10 and the breathing port 91. [

The respiratory gas humidifying apparatus 100 for a respirator according to the present invention is interposed between the intake pipe 70 and the branch pipe 90 at a close distance from the patient P. Therefore, the loss of water vapor due to the condensation during the movement of the humidified breathing gas (G) does not occur, and the physiologically suitably humidified breathing gas (G) can be stably supplied to the patient (P).

On the outer circumferential surface of the heating module 2, a pressing switch 23 capable of turning on / off the power supplied to the heating plate 22 is provided protruding outward.

When the heating module 2 is inserted into the heating section 11, the pressing switch 23 is pressed against the inner peripheral surface of the heating section 11 to turn on the power, and the heating module 2 is heated In the state of being separated from the part 11, the pressing operation is released and the power supply is turned off.

The pressing switch 23 prevents the heating plate 22 from being heated when the heating module 2 is separated from the heating section 11 even if power is applied to the heating module 2 by an external controller As a safety device.

At least one locking protrusion 24 protruding outward is formed on the outer circumferential surface of the heating module 2 in order to engage the heating unit 11 and the heating module 2. In the heating unit 11, 24 are inserted and fixed in correspondence with each other.

For example, as illustrated in FIGS. 4 and 6, a locking groove 14 is formed by bending the upper portion of the heating portion 11 in an approximately '?' (24) may protrude outward from the outer circumferential surface of the heating module (2).

In this case, the heating module 2 is pushed into the end of the heating part 11, inserted and rotated in one direction so that the engaging groove 14 and the engaging projection 24 are engaged and fixed.

Two locking protrusions 24 and two locking protrusions 14 are formed so that the coupling between the heating module 2 and the heating portion 11 can be stably performed. The two locking protrusions 24 and the locking protrusions 14 Are preferably located in mutually opposite directions.

It is needless to say that the shape, structure and position of the engaging groove 14 and the engaging projection 24 are not limited to the description and the drawings, but may be modified into various shapes and structures.

As shown in Figs. 6 and 7, an outside hollow cylindrical holder 3 can be inserted from the end of the heating part 11 and coupled to the outside of the heating part 11.

The inner circumferential surface of the holder 3 and the outer circumferential surface of the heating portion 11 are spaced apart from each other by a predetermined distance so that they do not contact with each other. The space formed by the holder 3 and the heating portion 11, Is prevented from being directly transmitted to the outside, thereby preventing an image or the like due to high temperature.

Conventional temperature / humidity control apparatuses have a considerable weight and volume, so that they are difficult to use in the operating room or in patient transportation where space and place restrictions are imposed due to the provision of numerous medical equipments. On the contrary, the respiratory gas humidification apparatus 100 for a respirator according to the present invention has a simple structure, a small volume, and a light weight, so that it can be easily used without any restriction according to the use place or environment.

Since the respiratory gas humidifying apparatus 100 for a respirator according to the present invention is interposed between the intake pipe 70 and the branch pipe 90 at a close distance from the patient P, G is not caused to be lost due to condensation during the movement of the patient G, so that the humidified respiratory gas G can be stably supplied to the patient P.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art to which the present invention pertains, There will be. Therefore, the scope of the present invention is not limited to the described embodiments, and various modifications and changes may be made without departing from the spirit and scope of the present invention, and such modifications or variations are within the scope of the present invention .

1: Body
10: mixing part 11: heating part
12: separator 13: packing member
14: latching groove 15: water supply pipe
16: Valve
2: Heating module
21: Insulation member 22: Hot plate
23: pressing switch 24:
25: Power line
3: Holder
50: Ventilator 60: Heating and / or humidifying device
70: intake tube 80:
90: Branch engine
100: Breathing gas humidifier for ventilator
G: Respiratory gas P: Patient
S: Heating space V: Water vapor
W: Water

Claims (6)

A suction tube, a suction tube, and a branch tube, and is interposed between the suction tube and the branch tube of the breathing tube for an artificial respirator,
A tubular mixing section having both end portions connected to the intake pipe and the branch pipe and a tubular heating section extending from a side surface of the mixing section in a direction perpendicular to the longitudinal direction of the mixing section, ; And a cylindrical heating module inserted into the open end of the heating part,
Wherein the mixing section and the heating section are separated by a steam selective permeation separation membrane that allows only steam generated in the heating section to pass to the mixing section side,
A heating plate which is heated by receiving power from the outside is covered with an insulating member at an upper end of the heating module,
The separation membrane and the upper end of the heating module are spaced apart from each other to form a heating space therebetween,
Wherein a water supply pipe for supplying water from the outside to the heating space is formed in a side surface of the heating unit. The method according to claim 1,
And a packing member in the form of a ring which is tightly fixed to the inner circumferential surface of the heating space for supporting and fixing the separation membrane. The method according to claim 1,
A pressing switch is provided on the outer circumferential surface of the heating module to turn on / off the power supplied to the heating plate, and the pressing switch is pressed against the inner circumferential surface of the heating unit when the heating module is inserted into the heating unit Breathing gas humidifier for ventilator characterized by. The method according to claim 1,
Wherein the heating module is provided with a protrusion protruding outwardly on an outer circumferential surface of the heating module, and the protrusion groove is formed in the heating section so that the protrusion can be inserted and fixed therein. The method according to claim 1,
Wherein the water supply pipe is provided with a valve for turning on / off water supply to the heating space. The method according to claim 1,
And a hollow cylindrical holder is coupled to the outside of the heating unit.

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