CN209253887U - Active defense type breathes connecting tube - Google Patents

Active defense type breathes connecting tube Download PDF

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Publication number
CN209253887U
CN209253887U CN201821559205.3U CN201821559205U CN209253887U CN 209253887 U CN209253887 U CN 209253887U CN 201821559205 U CN201821559205 U CN 201821559205U CN 209253887 U CN209253887 U CN 209253887U
Authority
CN
China
Prior art keywords
connecting tube
pipe
breathing
air flow
flow switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201821559205.3U
Other languages
Chinese (zh)
Inventor
樊理华
高宏
王翊硕
王建平
黄东晓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lishui City Peoples Hospital
Wuxi Shengnuoya Technology Co Ltd
Original Assignee
Lishui City Peoples Hospital
Wuxi Shengnuoya Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lishui City Peoples Hospital, Wuxi Shengnuoya Technology Co Ltd filed Critical Lishui City Peoples Hospital
Priority to CN201821559205.3U priority Critical patent/CN209253887U/en
Application granted granted Critical
Publication of CN209253887U publication Critical patent/CN209253887U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of active defense types to breathe connecting tube comprising breathing connecting tube, one-way exhaust pipe and the pipe that is located by connecting;In the head end of the pipe that is located by connecting, air flow switch is set;When gas breathes connecting tube from the pipe flow direction that is located by connecting, air flow switch can be in the open state, and when gas is located by connecting pipe from breathing connecting tube flow direction, air flow switch is in close state;Air flow switch is in the open state, it can be flowed to by air flow switch into breathing connecting tube into the gas being located by connecting in pipe, and one-way exhaust pipe can be blocked by air flow switch and breathe the connected state between connecting tube, so that gas is flowed out from breathing connecting tube;When air flow switch is in close state, the gas flow entered in breathing connecting tube can be stopped to enter by air flow switch and be located by connecting in pipe, so that the gas for flowing into breathing connecting tube is discharged from one-way exhaust pipe.The utility model is able to achieve the gas supply connection unidirectionally breathed, easy to use, securely and reliably.

Description

Active defense type breathes connecting tube
Technical field
The utility model relates to a kind of connecting tube, especially a kind of active defense type breathes connecting tube, belongs to medical instrument Technical field.
Background technique
Patients Underwent Endotracheal Intubation autonomous respiration ventilatory capacity is often insufficient, and Breathing Suppotion must be awarded in transport process, to avoid Hypoventilation leads to anoxic and carbon dioxide accumulation.Transhipment ventilator or simple respiratory balloon are often used when transhipment patient at present Breathing Suppotion is done, it is expensive using less although gas supply frequency and tidal volume are accurate when transhipment ventilator Breathing Suppotion;Letter Easy respiratory balloon is by manual control, and gas supply is not accurate enough but cheap, and easy to use, application is extremely wide.
When either transhipment ventilator or simple respiratory balloon do Breathing Suppotion, there is dirt between air supply opening and trachea cannula Contaminate phenomenon, that is, patient exhalation air is excreted through single loop polluted breathing interface.Therefore transhipment ventilator or simple breathing Sacculus theoretically answers a people one disinfection, but since transhipment ventilator or simple respiratory balloon use are extremely frequent, price phase To also costly, clinically required at present substantially less than disinfection.
Meanwhile the gas direct emission of patient's exhalation is in an atmosphere, common patient influences less, but in breathing sexually transmitted disease In patient, such as SARS, lunger, since germ sends out pollution ambient enviroment, extremely to medical staff and neighbours patient It is unfavorable, it may cause cross-infection.We need one kind in the transhipment of respiratory disease patient Breathing Suppotion, can also prevent germ It sends out, avoids the breathing connecting tube of cross-infection.
Clinic needs a kind of and transhipment ventilator or the matched breathing pipeline of simple respiratory balloon, cheap a, people one Thrown aside with one, patient exhalation air pollution transhipment ventilator or simple respiratory balloon avoided from source, make to transport ventilator or Simple respiratory balloon can high frequency use after replacing pipeline.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of active defense type breathing connection Pipe, it is compact-sized, it is able to achieve the gas supply connection unidirectionally breathed, it is easy to use, securely and reliably.
According to technical solution provided by the utility model, the active defense type breathing connecting tube, including breathing connecting tube, It is set to the one-way exhaust pipe breathed in connecting tube and the pipe that is located by connecting that connection is adapted to the breathing connecting tube, it is unidirectional to arrange Tracheae is connected with breathing connecting tube;
Can be according to the air flow switch of airflow direction control switch state in the head end setting of the pipe that is located by connecting, positioning connects The air flow switch of adapter tube head end is in breathing connecting tube;When gas breathes connecting tube from the pipe flow direction that is located by connecting, air-flow is opened Closing can be in the open state, and when gas is located by connecting pipe from breathing connecting tube flow direction, air flow switch is in close state;
Air flow switch in the open state, can be flowed to enter and be exhaled into the gas being located by connecting in pipe by air flow switch It inhales in connecting tube, and one-way exhaust pipe can be blocked by air flow switch and breathe the connected state between connecting tube, so as to bring about the desired sensation Body is flowed out from breathing connecting tube;
When air flow switch is in close state, by air flow switch can stop enter breathing connecting tube in gas flow into Enter to be located by connecting in pipe, so that the gas for flowing into breathing connecting tube is discharged from one-way exhaust pipe.
The air flow switch includes several cut-off diaphragms for being set to the tube head that is located by connecting, and cut-off diaphragm is positioning Tapered in connecting tube, the tip of cut-off diaphragm is protruded into breathing connecting tube;Breathing connecting tube direction is directed toward along the pipe that is located by connecting The gas of flowing enters the Guan Houneng that is located by connecting and pushes cut-off diaphragm open, so that air flow switch is in the open state.
Screw nipple, one end of the screw nipple and the Guan Gu that is located by connecting is arranged in the tail end of the pipe that is located by connecting Connector is arranged in the other end of fixed connection, screw nipple.
Be located by connecting the first positioning step of pipe and the second positioning table of pipe that is located by connecting are set on the pipe that is located by connecting Rank is arranged the breathing connecting tube positioning step being adapted to the second positioning step of pipe that is located by connecting in breathing connecting tube, and is exhaling It inhales in connecting tube and also sets up sealing positioning step;
Be located by connecting pipe head end protrude into breathing connecting tube when, breathe connecting tube tail end and be located by connecting pipe first positioning Step alignment positioning, and breathe connecting tube positioning step and be directed at positioning with the second positioning step of pipe that is located by connecting;At air flow switch When opening state, air flow switch and sealing positioning step cooperation can stop one-way exhaust pipe and breathe the company between connecting tube Logical state.
It is concavely provided with locating slot in the outer wall of the breathing connecting tube, the locating slot is located at breathing connecting tube positioning step Between sealing positioning step.
The pipe that is located by connecting is after breathing in connecting tube, and the pipe that is located by connecting is with breathing connecting tube in coaxial distribution.
The gas bactericidal purifying mechanism that bactericidal purifying can be carried out to the gas of discharge is additionally provided in the one-way exhaust pipe.
The advantages of the utility model: being arranged in the head end of the pipe that is located by connecting can be according to airflow direction control switch state Air flow switch, the air flow switch at the tube head end that is located by connecting is in breathing connecting tube;Gas is exhaled from the pipe flow direction that is located by connecting When inhaling connecting tube, air flow switch can be in the open state, when gas is located by connecting pipe from breathing connecting tube flow direction, at air flow switch It is able to achieve to the unidirectionally controlled of air-flow, after the pipe that is located by connecting connect cooperation with breathing connecting tube to avoid in closed state Pollution of the gas entered by breathing connecting tube to be located by connecting pipe and screw nipple, meets nonexpondable demand, Improve the convenience used.
Detailed description of the invention
Fig. 1 is the utility model air flow switch schematic diagram in the open state.
Fig. 2 is the schematic diagram that the utility model air flow switch is in close state.
Fig. 3 is the A-A cross-sectional view in Fig. 2.
Fig. 4 be the utility model be located by connecting pipe connect with screw nipple cooperate schematic diagram.
Fig. 5 is the structural schematic diagram that the utility model breathes connecting tube.
Description of symbols: 1- screw nipple, 2- are located by connecting pipe, 3- connector, 4- one-way exhaust pipe, 5- switch membrane Be located by connecting the first positioning step of pipe, 8- of piece, 6- breathing connecting tube, 7- is located by connecting the second positioning step of pipe, 9- breathing connection Pipe positioning step, 10- sealing positioning step and 11- locating slot and 12- are located by connecting pipe venthole.
Specific embodiment
Below with reference to specific drawings and examples, the utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3: in order to be able to achieve the gas supply unidirectionally breathed connection, the utility model includes that breathing connects Adapter tube 6 is set to the one-way exhaust pipe 4 breathed in connecting tube 6 and is adapted to being located by connecting for connection with the breathing connecting tube 6 Pipe 2, one-way exhaust pipe 4 are connected with breathing connecting tube 6;
It can be positioned according to the air flow switch of airflow direction control switch state in the head end setting of the pipe 2 that is located by connecting The air flow switch of 2 head end of connecting tube is in breathing connecting tube 6;When gas breathes connecting tube 6 from the flow direction of pipe 2 that is located by connecting, Air flow switch can be in the open state, and when gas is located by connecting pipe 2 from the breathing flow direction of connecting tube 6, air flow switch, which is in, closes shape State;
Air flow switch can flow to entrance by air flow switch in the open state, into the gas being located by connecting in pipe 2 It breathes in connecting tube 6, and one-way exhaust pipe 4 can be blocked by air flow switch and breathe the connected state between connecting tube 6, so that Gas is obtained to flow out from breathing connecting tube 6;
When air flow switch is in close state, the gas flow entered in breathing connecting tube 6 can be stopped by air flow switch Into being located by connecting in pipe 2, so that the gas for flowing into breathing connecting tube 6 is discharged from one-way exhaust pipe 4.
Specifically, be located by connecting pipe 2, breathing connecting tube 6 and one-way exhaust pipe 4 is both needed to using meeting the material of medical standard Material is made, and air flow switch is arranged in the head end for the pipe 2 that is located by connecting, and air flow switch is placed in breathing connecting tube 6, the air flow switch Switch state is controlled by airflow direction.Screw nipple 1 is arranged in the tail end of the pipe 2 that is located by connecting, the screw nipple 1 One end is fixedly connected with the pipe 2 that is located by connecting, and connector 3 is arranged in the other end of screw nipple 1, and screw nipple 1 can use Existing common structure type, be connected through a screw thread pipe 1 and connector 3 convenient can connect with external gas source, connector 3 Concrete form is adapted to the form of external air source, specifically be can according to need and is selected, and details are not described herein again.
The pipe 2 that is located by connecting is after breathing in connecting tube 6, and the pipe 2 that is located by connecting is with breathing connecting tube 6 in coaxial point Cloth.In the utility model embodiment, after the head end of the pipe 2 that is located by connecting is in breathing connecting tube 6, be located by connecting pipe 2 with exhale It inhales and is kept fixed between connecting tube 6.When there is gas to breathe connecting tube 6 from the flow direction of pipe 2 that is located by connecting, air flow switch can be in and beat Open state, the i.e. flow direction of gas are when being located by connecting the direction breathing connecting tube 6 of pipe 2, and the gas of flowing can make at air flow switch In opening state;And when gas is located by connecting pipe 2 from the breathing flow direction of connecting tube 6, air flow switch can be in close state, i.e. gas The flow direction of body is when being located by connecting pipe 2 from the breathing direction of connecting tube 6, and air flow switch is in close state, and air flow switch can prevent Gas is located by connecting in pipe 2 from the breathing flow direction of connecting tube 6.
In the utility model embodiment, air flow switch in the open state, is connected through a screw thread the external gas of the introducing of pipe 1 Body meets the needs of Breathing Suppotion by entering in breathing connecting tube 6 after the pipe 2 that is located by connecting;Meanwhile air flow switch blocks unidirectionally After exhaust pipe 4, gas will not be discharged by one-way exhaust pipe 4, guarantee the supply amount of gas.
When air flow switch is in close state, can stop to enter the pipe 2 that is located by connecting into the gas in breathing connecting tube 6 It is interior, and the air flow switch being in close state will not stop one-way exhaust pipe 4 and breathe connecting tube 6 between connection, i.e., into Enter to breathe gas in connecting tube 6 cannot be introduced into be located by connecting pipe 2 in the case where, can be discharged, be kept away by one-way exhaust pipe 4 Exempt to assemble in breathing connecting tube 6.In addition, check valve can be set in one-way exhaust pipe 4, after check valve is arranged, unidirectionally Exhaust pipe 4 with breathing connecting tube 6 be connected in the case where, external gas can not one-way exhaust pipe 4 enter breathe connecting tube 6 in, Only allow to breathe gas in connecting tube 6 by being discharged after 4 internal check valve of one-way exhaust pipe, further increase breathing connecting tube 6, Reliability in the uses such as one-way exhaust pipe 4.
In the utility model embodiment, in progress in use, can control the flow direction of gas by air flow switch, i.e., external gas Body can only carry out Breathing Suppotion by the pipe 2 that is located by connecting, air flow switch and after breathing connecting tube 6, during Breathing Suppotion, Gas can not be entered by breathing connecting tube 6 to be located by connecting in pipe 2, to avoid passing through the gas pair that breathing connecting tube 6 enters Be located by connecting the pollution of pipe 2 and screw nipple 1, meets nonexpondable demand, improves the convenience used.
Further, the air flow switch includes several cut-off diaphragms 5 for being set to 2 head of pipe that is located by connecting, more The cut-off diaphragm 5 of piece be located by connecting it is tapered on pipe 2, the tip of cut-off diaphragm 5 protrude into breathing connecting tube 6 in;Connect along positioning The gas that adapter tube 2 is directed toward the flowing of breathing 6 direction of connecting tube can push cut-off diaphragm 5 open after entering the pipe 2 that is located by connecting, so that air-flow It switchs in the open state.
In the utility model embodiment, cut-off diaphragm 5 can be in splintery, and the quantity of cut-off diaphragm 5 can according to need Selection, cut-off diaphragm 5 can be made of medical materials such as films, be in mutually to lean between multiple switch diaphragm 5 under normal circumstances Closely, i.e., in closed state.2 head end of pipe is tapered, i.e., cut-off diaphragm 5 is being located by connecting being located by connecting for the cut-off diaphragm 5 of multi-disc The head end of pipe 2 and the shape for the pipe 2 that is located by connecting are adapted, and several pipe ventholes that are located by connecting are arranged in the head end for the pipe 2 that is located by connecting 12, the pipe venthole 12 that is located by connecting penetrates through the pipe 2 that is located by connecting, and the gas for the pipe 2 that is located by connecting passes through the pipe outlet that is located by connecting The outflow of hole 12 is located by connecting outside pipe 2, and when cut-off diaphragm 5, which is in, to be opened, then gas can flow into breathing connecting tube 6.In addition, working as When air-flow is located by connecting pipe 2 from the breathing flow direction of connecting tube 6, it is able to achieve using the head for the pipe 2 that is located by connecting and cut-off diaphragm 5 is carried out Support, cut-off diaphragm 5 are fitted in the head end for the pipe 2 that is located by connecting and close connecting tube venthole 12, close so that air flow switch is in Closed state.
The direction of the vertex of a cone is directed toward at the cone bottom of the taper and the direction breathing direction of connecting tube 6 of pipe 2 that is located by connecting is consistent, So that cut-off diaphragm 5 can be pushed open into the gas being located by connecting in pipe 2, meets air-flow and exhaled by the entrance of pipe 2 that is located by connecting It inhales in connecting tube 6.And the gas in 2 direction of pipe that is located by connecting is directed toward along breathing connecting tube 6, in flowing, multiwaferred switch can be made Diaphragm 5 is close to cone bottom direction, and cut-off diaphragm 5 is attached to the head for the pipe 2 that is located by connecting, between cut-off diaphragm 5 with the pipe 2 that is located by connecting Head fits formed closed state block breathing connecting tube 6 in gas flow be located by connecting in pipe 2.
As shown in Figure 4 and Figure 5, be located by connecting the first positioning step of pipe 7 and positioning are set on the pipe 2 that is located by connecting The breathing being adapted to the second positioning step of pipe 8 that is located by connecting is arranged in breathing connecting tube 6 and connects for the second positioning step of connecting tube 8 Adapter tube positioning step 9, and sealing positioning step 10 is also set up in breathing connecting tube 6;
When the head end of pipe 2 of being located by connecting protrudes into breathing connecting tube 6, breathes the tail end of connecting tube 6 and be located by connecting pipe first The alignment positioning of positioning step 7, and breathe connecting tube positioning step 9 and be directed at positioning with the second positioning step of pipe 8 that is located by connecting;Air-flow In the open state, air flow switch and sealing positioning step 10 cooperate switch, can stop one-way exhaust pipe 4 and breathing connecting tube Connected state between 6.
In the utility model embodiment, match in order to facilitate realizing to be located by connecting pipe 2 and breathe the connection between connecting tube 6 It closes, be located by connecting the first positioning step of pipe 7 and the second positioning step of pipe that is located by connecting is set on the outer wall for the pipe 2 that is located by connecting 8, the second positioning step of pipe 8 that is located by connecting, which is located at, to be located by connecting between the first positioning step of pipe 7 and cut-off diaphragm 5, is located by connecting For the first positioning step of pipe 7 with the tail end of positioned adjacent connecting tube 2, the outer diameter for the first positioning step of pipe 7 that is located by connecting is greater than positioning The outer diameter of the first positioning step of connecting tube 8.
The setting breathing connecting tube positioning step 9 in breathing connecting tube 6, when the head end for the pipe 2 that is located by connecting is embedded in breathing When in connecting tube 6, the tail end of breathing connecting tube 6 can be aligned with the first positioning step of pipe 7 that is located by connecting, and breathe the interior of connecting tube 6 Diameter outer diameter adaptation corresponding with the pipe 2 that is located by connecting, breathing connecting tube positioning step 9 can be with the second positioning step of pipe 8 that is located by connecting Alignment.
After the pipe 2 that is located by connecting is positioned by above-mentioned positioning step to group cooperation with breathing connecting tube 6, in normal ventilation feelings Under condition, air-tightness requirement can guarantee.When between cut-off diaphragm 5 in the open state, utilize cut-off diaphragm 5 and sealing positioning table The contact of rank 10 can block one-way exhaust pipe 4 and breathe the connected state between connecting tube 6, i.e. cut-off diaphragm 5 and sealing positions After step 10 contacts, air-flow can not be discharged by one-way exhaust pipe 4, can only carry out gas discharge by breathing connecting tube 6.
In addition, the outer wall in the breathing connecting tube 6 is concavely provided with locating slot 11, the locating slot 11 is located at breathing connection Between pipe positioning step 9 and sealing positioning step 10.In the utility model embodiment, breathing connection can be mitigated using locating slot 11 The weight of pipe 6, moreover it is possible to the effects of realizing positioning, holding.
In the utility model embodiment, the gas of discharge can be carried out to sterilize only by being additionally provided in the one-way exhaust pipe 4 The gas bactericidal purifying mechanism of change.Wherein, gas bactericidal purifying mechanism can carry out gas using filter paper, filter membrane etc. The form of purification, specifically can according to need and is selected, and when gas needs to be discharged by one-way exhaust pipe 4, need first to pass through It crosses gas bactericidal purifying mechanism and carries out bactericidal purifying, after the gas discharge after bactericidal purifying, to surrounding when being avoided that breathing The pollution of gas.Certainly, in the specific implementation, the gas that one-way exhaust pipe 4 is discharged can also be sent into scavenging solution, that is, passed through It is discharged after scavenging solution purification, scavenging solution can use physiological saline, and the forms such as pure water specifically can according to need and be selected It selects, details are not described herein again.

Claims (7)

1. a kind of active defense type breathes connecting tube, it is characterized in that: including breathing connecting tube (6), being set to breathing connecting tube (6) On one-way exhaust pipe (4) and with it is described breathing connecting tube (6) be adapted to connect the pipe that is located by connecting (2), one-way exhaust pipe (4) It is connected with breathing connecting tube (6);
Can be according to the air flow switch of airflow direction control switch state in the head end setting of the pipe that is located by connecting (2), positioning connects The air flow switch of (2) head end is taken in breathing connecting tube (6);Gas flows to breathing connecting tube from the pipe that is located by connecting (2) (6) when, air flow switch can be in the open state, when gas is located by connecting pipe (2) from breathing connecting tube (6) flow direction, air flow switch It is in close state;
Air flow switch in the open state, can be flowed to enter and be exhaled into the gas in the pipe that is located by connecting (2) by air flow switch It inhales in connecting tube (6), and one-way exhaust pipe (4) can be blocked by air flow switch and breathe the connected state between connecting tube (6), So that gas is flowed out from breathing connecting tube (6);
When air flow switch is in close state, by air flow switch can stop enter breathing connecting tube (6) in gas flow into Enter in the pipe that is located by connecting (2), so that the gas for flowing into breathing connecting tube (6) is discharged from one-way exhaust pipe (4).
2. active defense type according to claim 1 breathes connecting tube, it is characterized in that: the air flow switch includes several sets It is placed in the cut-off diaphragm (5) on described pipe (2) head that is located by connecting, multiwaferred switch diaphragm (5) is on the pipe that is located by connecting (2) in cone Shape, the tip of cut-off diaphragm (5) are protruded into breathing connecting tube (6);Along being located by connecting, pipe (2) are directed toward breathing connecting tube (6) direction The gas of flowing can push cut-off diaphragm (5) open into being located by connecting after pipe (2), so that air flow switch is in the open state.
3. active defense type according to claim 1 breathes connecting tube, it is characterized in that: the tail of the pipe that is located by connecting (2) End setting screw nipple (1), one end of the screw nipple (1) are fixedly connected with the pipe that is located by connecting (2), screw nipple (1) connector (3) are arranged in the other end.
4. active defense type according to claim 1 breathes connecting tube, it is characterized in that: on the pipe that is located by connecting (2) Be located by connecting the first positioning step of pipe (7) and the second positioning step of pipe (8) that is located by connecting are set, in breathing connecting tube (6) The breathing connecting tube positioning step (9) being adapted to the second positioning step of pipe (8) that is located by connecting is set, and in breathing connecting tube (6) Inside also set up sealing positioning step (10);
When the head end of pipe (2) of being located by connecting protrudes into breathing connecting tube (6), the tail end of connecting tube (6) is breathed and the pipe that is located by connecting One positioning step (7) alignment positioning, and breathe connecting tube positioning step (9) and be aligned with the second positioning step of pipe (8) that is located by connecting Positioning;In the open state, air flow switch and sealing positioning step (10) cooperation can stop one-way exhaust pipe to air flow switch (4) connected state between breathing connecting tube (6).
5. active defense type according to claim 4 breathes connecting tube, it is characterized in that: in breathing connecting tube (6) Outer wall is concavely provided with locating slot (11), and the locating slot (11) is located at breathing connecting tube positioning step (9) and sealing positioning step (10) between.
6. active defense type according to one of claims 1 to 5 breathes connecting tube, it is characterized in that: the pipe that is located by connecting (2) after in breathing connecting tube (6), the pipe that is located by connecting (2) is in coaxial distribution with breathing connecting tube (6).
7. connecting tube is breathed to active defense type described in one of 4 according to claim 1, it is characterized in that: in the one-way exhaust The gas bactericidal purifying mechanism that bactericidal purifying can be carried out to the gas of discharge is additionally provided in pipe (4).
CN201821559205.3U 2018-09-25 2018-09-25 Active defense type breathes connecting tube Expired - Fee Related CN209253887U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821559205.3U CN209253887U (en) 2018-09-25 2018-09-25 Active defense type breathes connecting tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821559205.3U CN209253887U (en) 2018-09-25 2018-09-25 Active defense type breathes connecting tube

Publications (1)

Publication Number Publication Date
CN209253887U true CN209253887U (en) 2019-08-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821559205.3U Expired - Fee Related CN209253887U (en) 2018-09-25 2018-09-25 Active defense type breathes connecting tube

Country Status (1)

Country Link
CN (1) CN209253887U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113230508A (en) * 2021-05-28 2021-08-10 四川大学华西医院 Universal respirator tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113230508A (en) * 2021-05-28 2021-08-10 四川大学华西医院 Universal respirator tube

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20190816

Termination date: 20210925