CN207785617U - A kind of single-lumen bronchial tube - Google Patents

Abstract

The utility model discloses a kind of single-lumen bronchial tubes, including catheter main body, the first air bag and the second air bag, first air bag is arranged on the outer wall of the catheter main body and is connected to one first gas tube, second air bag is arranged on the outer wall of the catheter main body and is connected to one second gas tube, second air bag is located at the rear side of the first air bag, there is a blow vent on the catheter main body, the blow vent between the first air bag and the second air bag, be provided at blow vent can blow vent described in opening and closing of fault the first sealing mechanism.The utility model can conveniently realize one-lung ventilation and double pulmonary ventilation, and it can switch between one-lung ventilation and double pulmonary ventilation, without being gone the second air bag is repeatedly inflated for deflated to switch between one-lung ventilation and double pulmonary ventilation, and reduce the number of plug tracheal catheter, and operation is simplified, also reduce the injury to patient as far as possible.

Description

A kind of single-lumen bronchial tube

Technical field

The utility model is related to area of medical devices more particularly to a kind of tracheal catheters.

Background technology

When lesion occurs for the left pulmonary of patient or right lung, needs to keep apart left pulmonary and right lung, make a left side Side lung and right lung are separately ventilated, and Ipsilateral Lung infection is avoided to be good for side lung.During treatment, it is also necessary to which the lung of both sides leads to simultaneously The pulmonary ventilation of gas or only side.In order to reach these purposes, need to use tracheal catheter.

For common tracheal catheter mainly by three kinds, the first is single-lumen bronchial tube, has air bag on single-lumen bronchial tube, Single-lumen bronchial tube is inserted into the main bronchus of unilateral lung, the front opening of single-lumen bronchial tube is made to be placed in the main branch gas of unilateral lung Guan Zhong, by airbag aeration, the main bronchus of air-pocket obstruction unilateral lung in this way can keep apart the lung of both sides and can be single to being inserted into The unilateral lung of chamber tracheal catheter is ventilated, but when needing to be switched to double pulmonary ventilation, is needed to be intubated again to patient, be operated Trouble, can also make patient very painful, and be easy to happen cross-infection during plug.Second is that two-chamber tracheae is led It manages, there are two cavities for tool on double-lumen catheter, correspond to left lung and right lung respectively, also have air bag on double-lumen catheter, Left lung and right lung can be kept apart when the bladder inflates, but two-chamber tracheae has the following disadvantages：Catheter outer diameter is thicker, It is easy to damage respiratory tract when trachea cannula, is not suitable for the thinner patient of tracheae and uses；The unilateral intracavitary diameter of double lumen tube is smaller, no Conducive to ventilation, it is easy to happen gas duct high pressure.The third is single-lumen bronchial tube combination bronchial occlusive device, when operation, by branch gas Pipe plugging device is inserted into the main bronchus of unilateral lung, and the airbag aeration on bronchial occlusive device can be realized to the isolation of both sides lung, But the catheter diameter of bronchial occlusive device is thinner, it is difficult to install suction pipe in the conduit of bronchial occlusive device lung is sucked out Secretion.

Utility model content

To solve the above-mentioned problems, the utility model provides one kind can realize double pulmonary ventilation and one-lung ventilation more conveniently The tracheal catheter of function.

Technical solution adopted by the utility model to solve its technical problems is：

A kind of single-lumen bronchial tube, which is characterized in that including catheter main body, the first air bag and the second air bag.First air bag It is arranged on the outer wall of the catheter main body and is connected to one first gas tube；Second air bag is arranged in the outer of the catheter main body It is connected on wall and with one second gas tube, second air bag is located at the rear side of the first air bag.Have one on the catheter main body Blow vent, for the blow vent between the first air bag and the second air bag, being provided at the blow vent can opening and closing of fault institute State the first sealing mechanism of blow vent.

Preferably, first sealing mechanism includes the sealed piece to link together and the first traction fiber, and described first leads Sealed piece action can be drawn to close or open the blow vent by drawing silk.

Preferably, it is provided with first passage compatible with the first traction fiber in the side wall of the catheter main body, described One traction fiber is movably arranged in first passage.

Preferably, it is provided with scale on first traction fiber.

Preferably, be provided on the catheter main body can opening and closing of fault catheter main body front end opening the second sealer Structure.

Preferably, second sealing mechanism includes the second traction fiber and plug to link together, plug and opening phase Adaptation, the second traction fiber can draw plug movement with the opening and closing of fault opening.

Preferably, first gas tube is an integral structure or the second gas tube and catheter main body with catheter main body It is an integral structure.

The utility model has the beneficial effects that：In the utility model, by the way that the first air bag and are arranged on catheter main body Two air bags, and blow vent is set on the catheter main body between the first air bag and the second air bag, it can conveniently realize single lung Ventilation and double pulmonary ventilation, and can switch between one-lung ventilation and double pulmonary ventilation, without in order to logical in one-lung ventilation and double lungs Switch between gas and remove number that is the second air bag is repeatedly inflated for deflated, and reducing plug tracheal catheter, and simplifies Operation, also reduces the injury to patient as far as possible.

Description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples：

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of another embodiment of the utility model；

Fig. 3 is the I magnified partial views of Fig. 2.

Specific implementation mode

Referring to Fig.1~Fig. 3, the utility model is a kind of single-lumen bronchial tube, including catheter main body 1, in catheter main body 1 The first air bag 21 and the second air bag 31 are provided on outer wall, the second air bag 31 is located at the rear side of the first air bag 21, the first air bag 21 It is connected to one first gas tube 22, the second air bag 31 is connected to one second gas tube 32.It can be to first by the first gas tube 22 The operation that air bag 21 is inflated and deflates, the behaviour that second air bag 31 can be inflated and be deflated by the second gas tube 32 Make.There is a blow vent 41, the blow vent 41 is between the first air bag 21 and the second air bag 31 on catheter main body 1.It is ventilating Be provided at mouthfuls 41 can the opening and closing of fault blow vent 41 the first sealing mechanism.

When needing to be applied to left pulmonary ventilation, catheter main body 1 is inserted into the main bronchus of left lung, utilizes the first sealing mechanism Blow vent 41 is closed, the first air bag 21 and the inflation of the second air bag 31, the second air bag 31 block tracheae, and the first air bag 21 blocks left lung Main bronchus, gas from the opening 11 of 1 front end of catheter main body enter left lung, meet the needs of left pulmonary ventilation.Applied to right lung When ventilation, catheter main body 1 is inserted into the main bronchus of right lung, blow vent 41, the first air bag 21 are closed using the first sealing mechanism It is inflated with the second air bag 31, the second air bag 31 blocks tracheae, and the first air bag 21 blocks the main bronchus of right lung, and gas is from conduit master The opening 11 of 1 front end of body enters right lung, meets the needs of right lung ventilation.It is close using first when needing to be switched to double pulmonary ventilation Sealing mechanism opens blow vent 41.In the utility model, by the way that the first air bag 21 and the second air bag are arranged on catheter main body 1 31, and blow vent 41 is set on the catheter main body 1 between the first air bag 21 and the second air bag 31, it can conveniently realize list Pulmonary ventilation and double pulmonary ventilation, and can switch between one-lung ventilation and double pulmonary ventilation, do not have in order to logical in one-lung ventilation and double lungs Switch between gas and remove number that is the second air bag 31 is repeatedly inflated for deflated, and reducing plug tracheal catheter, and simplifies Operation, also reduces the injury to patient, reduces the pain of patient as far as possible.Catheter main body 1 in the utility model For single lumen catheter, single lumen catheter has outer diameter small, and the big feature of internal diameter can preferably protect respiratory tract and can reduce airway pressure, and And it could be applicable to the thinner patient of tracheae.It, can be conveniently in catheter main body 1 since the internal diameter of catheter main body 1 is larger Suction pipe is installed, the intrabronchial secretion of patient is drawn using suction pipe.

In the utility model, the first sealing mechanism includes the sealed piece 42 to link together and the first traction fiber 43, manually Drive the first traction fiber 43 that the first traction fiber 43 can be made to move, the first traction fiber 43 can draw the action of sealed piece 42 to open when moving Open or close blow vent 41.In the present embodiment, sealed piece 42 is sealing diaphragm, and the side for sealing diaphragm is arranged in blow vent 41 Place, the first traction fiber 43 driving sealing diaphragm action, when sealing diaphragm be moved to the when of being tightly attached on blow vent 41 can close it is logical Gas port 41.First traction fiber 43 specifically can be used or steel wire plastics silk.

Certainly, as shown in Fig. 2, sealed piece 42 can also be one section of hollow seal pipe, seal pipe is movably arranged on conduit master In body 1, the length of seal pipe is equal or slightly larger than the length of blow vent 41, and seal pipe can edge under the traction of the first traction fiber 43 The movement of catheter main body 1, blow vent 41 can be closed when seal pipe is moved to the position for blocking blow vent 41 completely.Such as Fig. 2 Shown in Fig. 3, limiting section 12 is provided in catheter main body 1, seal pipe is slided along catheter main body 1, when the end of seal pipe When being abutted against with limiting section 12, limiting section 12 will limit the movement of seal pipe, and seal pipe is just at making 41 envelope of blow vent at this time The position closed or opened, it is that although it is understood that the keying shape of blow vent 41 that operating personnel, which combine the distance of the first traction fiber 43 movement, State.In addition, limiting section 12 can also avoid seal pipe from sliding into other positions.

First passage compatible with the first traction fiber 43, the first traction fiber 43 are provided in the side wall of catheter main body 1 It is movably arranged in first passage, the first arbitrarily movement of traction fiber 43 can be limited in this way, keep operating personnel more accurate The first traction fiber of understanding 43 shift length, and then recognize the opening and closing situation of blow vent 41.Further, in the first traction It is provided with scale on silk 43, so that operating personnel more accurately understand the shift length of the first traction fiber 43, by adjusting the The shift length of one traction fiber 43 also adjusts the ventilation flow rate of blow vent 41.

The second sealer of the opening 11 that can open or close 1 front end of catheter main body is additionally provided on catheter main body 1 Structure.When needing to be applied to left pulmonary ventilation, catheter main body 1 is inserted into the main bronchus of left lung, is closed using the first sealing mechanism Blow vent 41 opens the opening 11 of 1 front end of catheter main body using the second sealing mechanism, and the first air bag 21 and the second air bag 31 fill Gas, the second air bag 31 block tracheae, and the first air bag 21 blocks the main bronchus of left lung, opening of the gas from 1 front end of catheter main body 11 enter left lung, meet the needs of left pulmonary ventilation.When needing to be switched to right lung ventilation, it is only necessary to open blow vent 41 and close Opening 11, need not be intubated so that the operation of the utility model is simpler, further reduces the pain of patient again It is bitter.When needing double lungs to ventilate simultaneously, while opening blow vent 41 and being open 11.

In the utility model, the second sealing mechanism includes the second traction fiber 52 to link together and plug 51, plug 51 It is adapted with opening 11, the second traction fiber 52 draws the movement of plug 51 with the opening and closing of fault opening 11.Likewise, in conduit master Second channel compatible with the second traction fiber 52 is provided in the side wall of body 1, it is logical that the second traction fiber 52 is movably arranged on first In road, the second arbitrarily movement of traction fiber 52 can be limited in this way, operating personnel is allow accurately to understand the second traction fiber 52 shift length, and then recognize the opening and closing situation of opening 11.Further, it is provided with scale on the second traction fiber 52, So that operating personnel more accurately understand the shift length of the second traction fiber 52.Second traction fiber 52 can be steel wire or plastics Silk.Certainly, in practical application, the second sealing mechanism can be also made of interconnected third gas tube and third air bag, the Three air bags are located at opening 11, and opening 11 can be closed when third airbag aeration.

In the present embodiment, the first gas tube 22 is an integral structure with catheter main body 1, the second gas tube 32 and catheter main body 1 is also an integral structure.First gas tube 22 and the second gas tube 32 can be respectively bonded on catheter main body 1.First gas tube 22, the second gas tube 32 and catheter main body 1 can be made of identical material, the first gas tube 22, the second gas tube 32 and conduit Main body 1 can machine-shaping together, reduce the quantity of parts, reduce processing and assembly cost.

In addition, being both provided with closing valve 61 on the first gas tube and 21 second gas tubes 22.After airbag aeration, pass through Closing valve 61 closes corresponding gas tube, prevents the gas in air bag to be reversely lost in, continues pressurize without air supply system.

Above-described embodiment is the preferred embodiment of the utility model, and the utility model can also have other embodiments.Ability The technical staff in domain puts in the head without prejudice to the spirit of the present invention can also make equivalent variations or replacement, these equivalent changes Type or replacement are all contained in the range set by the application claim.

Claims (7)

1. a kind of single-lumen bronchial tube, which is characterized in that including

Catheter main body (1)；

First air bag (21) is arranged on the outer wall of the catheter main body (1) and is connected to one first gas tube (22)；

Second air bag (31) is arranged on the outer wall of the catheter main body (1) and with one second gas tube (32) and is connected to, and described the Two air bags (31) are located at the rear side of the first air bag (21)；

There is a blow vent (41), the blow vent (41) to be located at the first air bag (21) and the second gas on the catheter main body (1) Between capsule (31), be provided at the blow vent (41) can blow vent (41) described in opening and closing of fault the first sealing mechanism.

2. a kind of single-lumen bronchial tube according to claim 1, it is characterised in that：First sealing mechanism includes connection Sealed piece (42) together and the first traction fiber (43), first traction fiber (43) can draw sealed piece (42) action to seal Close or open the blow vent (41).

3. a kind of single-lumen bronchial tube according to claim 2, it is characterised in that：In the side wall of the catheter main body (1) It is provided with the compatible first passage with the first traction fiber (43), first traction fiber (43) is movably arranged on first passage It is interior.

4. a kind of single-lumen bronchial tube according to claim 3, it is characterised in that：It is arranged on first traction fiber (43) There is scale.

5. a kind of single-lumen bronchial tube according to claim 1, it is characterised in that：It is provided on the catheter main body (1) Can opening and closing of fault catheter main body (1) front end opening (11) the second sealing mechanism.

6. a kind of single-lumen bronchial tube according to claim 5, it is characterised in that：Second sealing mechanism includes connection The second traction fiber (52) together and plug (51), plug (51) are adapted with opening (11), and the second traction fiber (52) can be led It is mobile with the opening and closing of fault opening (11) to draw plug (51).

7. according to a kind of single-lumen bronchial tube described in claim 1, it is characterised in that：First gas tube (22) and conduit master Body (1) is an integral structure or the second gas tube (32) is an integral structure with catheter main body (1).