CN103127595A

CN103127595A - Heat and moisture exchanger

Info

Publication number: CN103127595A
Application number: CN2011103796298A
Authority: CN
Inventors: 李清昭; 陈裕智
Original assignee: GALEMED (XIAMEN) MEDICAL EQUIPMENT CO Ltd
Current assignee: GALEMED (XIAMEN) MEDICAL EQUIPMENT CO Ltd
Priority date: 2011-11-25
Filing date: 2011-11-25
Publication date: 2013-06-05
Anticipated expiration: 2031-11-25
Also published as: CN103127595B

Abstract

A heat and moisture exchanger comprises a shell body and a filtering wet storage unit. The shell body is provided with an encircling wall, a respiratory air connector, an oxygen connector and an adjustable air hole unit. A containing space is defined in the encircling wall, the respiratory air connector is placed on the encircling wall, a first channel communicating with the containing space and the environment outside the shell body is defined in the respiratory air connector, the oxygen connector is arranged on the encircling wall, and a second channel communicating with the containing space and the environment outside the shell body is defined in the encircling wall. The adjustable air hole unit is placed in the encircling wall and comprises an air hole around the wall, and the air hole is used for communicating the containing space and the environment outside the shell body and can be controlled to open or close. The filtering wet storage unit is contained in the containing space and does not separate the air hole and the first channel. Insufficient air quantity can be supplied by opening of the air hole.

Description

Warm and humid exchanger

Technical field

The present invention relates to a kind of medical supplies, particularly relate to a kind of warm and humid exchanger that the autogenous cutting pipe uses that connects.

Background technology

The general patient that the autogenous cutting pipe is installed usually need to utilize warm and humid exchanger come in filtering gas impurity and by the Exhaled gasesS stores its humidity of patient own and steam, with to the gas humidification that sucks and heat, the gas of avoiding sucking causes discomfort to human body.

Due to after the filter material in warm and humid exchanger uses a period of time, because tracheal secretion stops up filter material, make the air mass flow by filter material diminish, so can cause patient's inspiration capacity not enough, if fail in time to change warm and humid exchanger, the danger that may cause patient to suffocate.

But, because medical personnel are usually extremely busy commonplace, sometimes do not have the sufficient time to change warm and humid exchanger, so how the buffer time of changing warm and humid exchanger is provided, to ensure patient safety and to facilitate medical personnel to arrange to change the time of warm and humid exchanger, it is still the problem that needs solution.

Summary of the invention

The purpose of this invention is to provide a kind of warm and humid exchanger that can postpone the time of changing.

Warm and humid exchanger of the present invention comprises: wet unit is stored up in a housing and a filtration; This housing has a surrounding wall, a respiratory gas interface and an oxygen interface, this surrounding wall defines a receiving space, this respiratory gas interface is located at this surrounding wall and is defined a first passage that is communicated with the environment outside this receiving space and this housing, and this oxygen interface is located at this surrounding wall and is defined a second channel that is communicated with the environment outside this receiving space and this housing; It is characterized in that: this housing also has an adjustable stoma unit, this adjustable stoma unit is located at this surrounding wall and is comprised a passage that is formed at this surrounding wall being communicated with the outer environment of this receiving space and this housing, and this passage is controllably opened or closes; This filters the wet unit housing of storage in this receiving space, and does not intercept this passage and this first passage.

Beneficial effect of the present invention is: can replenish not enough air capacity by opening passage, can strive for changing the buffer time of warm and humid exchanger, so that medical personnel have ample time to change warm and humid exchanger.

Description of drawings

Fig. 1 is the axonometric chart of the warm and humid exchanger of explanation a preferred embodiment of the present invention;

Fig. 2 is the three-dimensional exploded view of this preferred embodiment of explanation and an oxygen conveying pipe;

Fig. 3 illustrates a housing of this preferred embodiment and the axonometric chart of a filter material;

Fig. 4 is the three-dimensional exploded view of this housing of explanation;

Fig. 5 is the rear view of Fig. 4;

Fig. 6 is the schematic diagram of the passage state of closing of this preferred embodiment of explanation; And

Fig. 7 is the schematic diagram of the state opened of passage of this preferred embodiment of explanation.

The specific embodiment

For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.At first need to prove, the present invention is not limited to the following specific embodiment, and those skilled in the art should understand the present invention from the spirit that following embodiment embodies, and each technical term can be done the most wide in range understanding based on spirit of the present invention.In figure, same or analogous member uses the same reference numerals to represent.

Consult Fig. 1, Fig. 2 and Fig. 3, the warm and humid exchanger of a preferred embodiment of the present invention is applicable to connect an oxygen conveying pipe 9 and an autogenous cutting pipe (not shown), the warm and humid exchanger 100 of this preferred embodiment comprises a housing 1 and wet unit is stored up in a filtration, and filtration is stored up the unit that wets and comprised two filter materials 2.

Housing 1 has a surrounding wall 3, respiratory gas interface 4, oxygen interface 5 and an adjustable stoma unit.Surrounding wall 3 in a tubular form and define a receiving space 31 and be positioned at two ports 32 of opposite end.Two filter materials 2 are positioned at receiving space 31 relatively and at intervals, and are filled in surrounding wall 3 and respectively near two port 32 places.Respiratory gas interface 4 is located at surrounding wall 3 and is defined a first passage 41 that is communicated with the environment outside receiving space 31 and housing 1.Respiratory gas interface 4 is in order to connect the joint of autogenous cutting pipe, for example 15ID joint (inner ring of joint is 15mm).Oxygen interface 5 is located at surrounding wall 3 and is defined a second channel 51 that is communicated with the environment outside receiving space 31 and housing 1.Oxygen interface 5 is in order to connect oxygen conveying pipe 9.Respiratory gas interface 4 and oxygen interface 5 are oppositely arranged and between two filter materials 2.In addition, housing 1 also has a training wall 11, a plurality of limited block 12 and a joint limiting section 13.Training wall 11 is connected in surrounding wall 3 inboard and relative with oxygen the interface 5 and gas minute both sides that will be entered by oxygen interface 5 towards two filter materials, 2 direction water conservancy diversion, and training wall 11 and respiratory gas interface 4 make two filter materials 2 maintenance intervals between two filter materials 2.A plurality of limited blocks 12 are distributed in two port 32 places and are protruded out toward receiving space 31 by surrounding wall 3, in order to filter material 2 is spacing, prevent that filter material 2 from deviating from housing 1.Joint limiting section 13 is connected between respiratory gas interface 4 and training wall 11, at the present embodiment, joint limiting section 13 is made of two relative rank sections, causes humidifying bad and be difficult for separating the autogenous cutting pipe joint when changing warm and humid exchanger 100 in order to prevent the autogenous cutting pipe joint from inserting dark.

Consult Fig. 1, Fig. 4 and Fig. 5, the adjustable stoma unit is located at surrounding wall 3 and is comprised that one convexedly stretches in surrounding wall 3 and ringwise mount pad 6, a knob 7 and a passage 8 that is formed at surrounding wall 3, and passage 8 is positioned at the scope that mount pad 6 circles surround, in order to be communicated with the outer environment of receiving space 31 and housing 1.In the present embodiment, oxygen interface 5 is positioned at the place, axle center of mount pad 6 and is protruded out outward by surrounding wall 3, that is to say, mount pad 6 is take oxygen interface 5 as the axle center around oxygen interface 5 and be positioned at the opposite side of respiratory gas interface 4, and passage 8 is also relative with respiratory gas interface 4 between oxygen interface 5 and mount pad 6, in addition, be the clearance space of two filter materials 2 between passage 8 and first passage 41, so filter material 2 (filter and store up wet unit) does not intercept passage 8 and first passage 41.Knob 7 have one rotationally with mount pad 6 in conjunction with and ringwise joint portion 71, a catch 72 and hollow-out parts 73, catch 72 is by the inboard past center extension in joint portion 71 and controllably block passage 8, and define a central perforation 74 and stretch through with oxygen interface 5, hollow-out parts 73 is formed at catch 72, and hollow-out parts 73 can be exposed the whole of passage 8, and the shape that is to say hollow-out parts 73 is roughly corresponding with passage 8 and be not less than passage 8.specifically, knob 7 is incorporated into mount pad 6 rotationally, oxygen interface 5 stretches through out catch 72 to connect oxygen conveying pipe 9 by central perforation 74, and knob 7 can rotate take oxygen interface 5 as the axle center, and catch 72 and hollow-out parts 73 are rotated together with also, when catch 72 blocks passage 8 fully, be about to passage 8 and close (consulting Fig. 6), when catch 72 does not block passage 8 fully, be about to passage 8 and open (consulting Fig. 7), the part that passage 8 is unlocked can with the outer environmental communication of housing 1, and can utilize the size that catch 72 blocks passage 8 to control the scope that passage 8 can be ventilated, when catch 72 does not block passage 8, passage 8 is opened fully and is had maximum a ventilated scope.That is to say, when turning to, hollow-out parts 73 overlaps with passage 8 and when exposing passage 8 whole, namely that catch 72 is not when blocking passage 8 fully, if hollow-out parts 73 only has part and passage 8 to overlap, passage 8 is not namely blocked by catch 72 with the part that hollow-out parts 73 overlaps, and makes passage 8 only have the part that overlaps with hollow-out parts 73 to ventilate, therefore, can control passage 8 by turning knob 7 and open or close, and can control the size (scope that can ventilate) that passage 8 is opened.The mode of controlling passage 8 unlatchings or closing also can be reached by valve is set, and that is to say that catch can with the valve version setting, not be limited with the present embodiment yet.

Using warm and humid exchanger during 100 initial stage, passage 8 can be closed, patient can be by the air in the two-port 32 absorption environment of surrounding wall 3, air flow after filter material 2 humidifications are heated with oxygen mix by oxygen interface 5 input receiving spaces 31, then enter the autogenous cutting pipe by the first passage 41 that respiratory gas interface 4 defines and suck human body.Using warm and humid exchanger after 100 a period of times, if filter material 2 is caused the air mass flow in the autogenous cutting pipe not enough by the tracheal secretion Partial Blocking, and medical personnel are not when also having grace time to change warm and humid exchanger 100, medical personnel can first open passage 8, make the outer air of housing 1 can be by passage 8 directly with the air of the filter material 2 of flowing through and by the oxygen mix of oxygen interface 5 inputs, then enter first passage 41 to replenish not enough air capacity.Can strive for changing by this buffer time of warm and humid exchanger 100, so that medical personnel have ample time to change warm and humid exchanger 100.

In sum, not enough air capacity can be replenished by opening passage 8, the buffer time of warm and humid exchanger 100 can be striven for changing, so that medical personnel have ample time to change warm and humid exchanger 100.

Below described preferred embodiment of the present invention in detail, but it will be appreciated that, after having read above-mentioned teachings of the present invention, those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally.

Claims

1. warm and humid exchanger comprises: housing and one filter storage wet unit; This housing has a surrounding wall, a respiratory gas interface and an oxygen interface, this surrounding wall defines a receiving space, this respiratory gas interface is located at this surrounding wall and is defined a first passage that is communicated with the environment outside this receiving space and this housing, and this oxygen interface is located at this surrounding wall and is defined a second channel that is communicated with the environment outside this receiving space and this housing; It is characterized in that: this housing also has an adjustable stoma unit, this adjustable stoma unit is located at this surrounding wall and is comprised a passage that is formed at this surrounding wall being communicated with the outer environment of this receiving space and this housing, and this passage is controllably opened or closes; This filters the wet unit housing of storage in this receiving space, and does not intercept this passage and this first passage.

2. warm and humid exchanger as claimed in claim 1 is characterized in that: this adjustable stoma unit also comprises a catch that controllably blocks this passage; When this catch blocked this passage fully, this passage was closed; When this catch did not block this passage fully, this passage was opened.

3. warm and humid exchanger as claimed in claim 2, it is characterized in that: this adjustable stoma unit comprises that also one convexedly stretches in this surrounding wall and ringwise mount pad and a knob, and this passage is positioned at the scope that this installation seat ring surrounds, this knob have one rotationally with the joint portion that this mount pad is combined, and this catch is connected in this joint portion and rotates with this joint portion.

4. warm and humid exchanger as claimed in claim 3 is characterized in that: this joint portion ringwise and this catch extend toward center by this joint portion is inboard; This knob also has a hollow-out parts that is formed at this catch, and this hollow-out parts can be exposed the whole of this passage.

5. warm and humid exchanger as claimed in claim 4 is characterized in that: this oxygen interface is positioned at the place, axle center of this mount pad and is protruded out outward by this surrounding wall, and this catch defines a central perforation and stretches through for this oxygen interface.

6. warm and humid exchanger as claimed in claim 1, it is characterized in that: this filtration is stored up wet unit and is comprised two filter materials, these two filter materials are positioned at this receiving space relatively and at intervals, this respiratory gas interface and this oxygen interface is oppositely arranged and between these two filter materials; This housing also has a training wall that is connected in this surrounding wall inboard, and this training wall and gas minute both sides that will by this oxygen interface be entered relative with this oxygen interface are towards these two filter material direction water conservancy diversion.

7. warm and humid exchanger as claimed in claim 6, it is characterized in that: this housing also has a joint limiting section that is connected between this respiratory gas interface and this training wall.

8. warm and humid exchanger as claimed in claim 6 is characterized in that: this surrounding wall in a tubular form and define two ports that are positioned at opposite end, and these two filter materials are filled in this surrounding wall and respectively near these two ports.

9. warm and humid exchanger as claimed in claim 8, it is characterized in that: this housing also has a plurality of limited blocks, and described limited block is distributed in these two ports and is protruded out toward this receiving space by this surrounding wall.