CN214286221U - Single lung ventilation management catheter - Google Patents

Abstract

The invention discloses a unipulmonary ventilation management catheter, which is characterized in that: the device comprises a main ventilation pipe (1), a secondary plugging pipe (2) and a double-pipe connecting mechanism, wherein the rear section of the secondary plugging pipe (2) is connected with the rear section of the main ventilation pipe (1) through the double-pipe connecting mechanism, and the secondary plugging pipe (2) is arranged outside a ventilation cavity of the main ventilation pipe (1) and is longer than the main ventilation pipe (1); the double-pipe connecting mechanism comprises a connecting main body, wherein a main pipe limiting part (3-1) and an auxiliary pipe limiting part (3-2) are arranged on two sides of the connecting main body, the rear section of the ventilating main pipe (1) is embedded in the main pipe limiting part (3-1), and the rear section of the plugging auxiliary pipe (2) is embedded in the auxiliary pipe limiting part (3-2). The single-lung ventilation management catheter provided by the invention can reduce the airway pressure to the maximum extent during single-lung ventilation, can implement single-lung ventilation in children, can avoid the replacement operation of the tracheal catheter, and has the advantages of simple structure and wide applicability.

Description

Single lung ventilation management catheter

Technical Field

The utility model relates to the technical field of medical equipment, in particular to unipulmonary ventilation management pipe.

Background

The single-lung ventilation management catheter is widely applied to anesthesia in thoracic surgery and has the function of isolating the left lung and the right lung and realizing the respective ventilation of the left lung and the right lung. The current single-lung ventilation management catheter comprises a double-cavity bronchial catheter and a bronchial occluder. These products meet clinical needs in adults with normal lung function, but do not significantly meet clinical needs in adults with poor lung function, or in pediatric patients.

Although the double-cavity bronchial catheter can safely and effectively ventilate the left single lung or the right single lung so as to provide conditions for left or right thoracic cavity and lung operations, the sputum of the left and right collateral bronchi can be conveniently cleaned in the operations. However, the double-lumen bronchial catheter is thicker and deeper to be implanted, has larger stimulation to the trachea and carina of a patient, is not easy to be tolerated by the patient, and is easy to have cardiovascular reactions such as hypertension, arrhythmia and the like, so that accidents are caused. Meanwhile, the two ventilation cavities of the double-cavity bronchial catheter are both thin, so that the sputum suction is very inconvenient, and the airway pressure is also high during ventilation. If the lung function of the patient is poor, when the patient needs to continue mechanical respiration to assist breathing after the operation is finished, the double-cavity bronchial catheter needs to be pulled out, the trachea is inserted again, and the single-cavity tracheal catheter is placed, so that the sputum suction and the respiration management of the patient can be conveniently implemented in the later stage. Because the left and right double cavities are respectively arranged, in children with smaller tracheal internal diameter, the tracheal internal diameter of a patient is limited, the external diameter of the double-cavity bronchial catheter which can be placed in the children is thinner, the left and right double cavities are narrower, the breathing support can not be effectively provided for the patient, and the sputum can not be cleaned through the left and right side cavities.

When in use, the bronchus blocking device needs to be matched with a single-cavity tracheal catheter and needs to be placed in the single-cavity tracheal catheter cavity and reach the operation side branch trachea, although the ventilation of the left single lung or the right single lung can be effectively implemented, thereby providing conditions for the left chest or the right chest and the lung operation. However, the bronchus stopper must be placed into the single-cavity tracheal catheter cavity when in use, the single-cavity tracheal catheter cavity is occupied, the sputum suction catheter is placed into the bronchus stopper to cause great interference when the sputum needs to be cleared, and the bronchus stopper is not beneficial to sputum suction operation. If want accurate sputum suction, must accomplish under the video scope is supplementary, at this moment, the trachea occluder, inhale phlegm pipe and video scope are put into simultaneously to single chamber endotracheal tube inner chamber, and the operation is very difficult. Meanwhile, when an infant operates, the inner cavity of the single-cavity tracheal catheter is thin, the bronchus blocking device is difficult to place, even if the single-cavity tracheal catheter is placed in, the single-cavity tracheal catheter is greatly interfered, the effective ventilation area is seriously reduced, and effective ventilation cannot be implemented.

The clinical urgent need is a single lung ventilation management tool, which can effectively implement the single lung ventilation of the left and right lungs; when single lung ventilation is carried out, a maximum ventilation support tube cavity is provided, and the airway pressure is reduced to the maximum extent; when the operation is finished and respiratory support is needed, intubation is not needed again; even in the infant patient, the occupation of the inner cavity of the single-cavity tracheal catheter can be avoided, and the effective and safe mechanical ventilation is ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a unipulmonary ventilation management pipe, simple structure, the suitability is strong.

Based on the above problem, the utility model provides a technical scheme is:

a unipulmonary ventilation management catheter comprises a main ventilation pipe, a secondary plugging pipe and a double-pipe connecting mechanism, wherein the rear section of the secondary plugging pipe is connected with the rear section of the main ventilation pipe through the double-pipe connecting mechanism; the double-pipe connecting mechanism comprises a connecting main body, wherein a main pipe limiting part and an auxiliary pipe limiting part are arranged on two sides of the connecting main body, the rear section of the ventilating main pipe is embedded in the main pipe limiting part, and the rear section of the plugging auxiliary pipe is embedded in the auxiliary pipe limiting part.

In some of these embodiments, the connecting body is provided with a secondary tube locking mechanism capable of temporarily locking the position of the connecting body with the occluded secondary tube; the auxiliary tube locking mechanism is loosened, and the tail part of the plugging auxiliary tube can be operated, so that the plugging auxiliary tube independently rotates, advances or retreats in the auxiliary tube limiting part or is separated from the connecting main body.

In some of these embodiments, the connecting body is provided with a main tube locking mechanism capable of temporarily locking the position of the connecting body and the main vent tube; the tail of the connecting body can be operated by loosening the main pipe locking mechanism, so that the connecting body is separated from the main ventilation pipe.

In some embodiments, the auxiliary pipe locking mechanism includes a first fixing ring disposed on the connecting body, and a first locking nut, the first fixing ring is axially provided with a first limiting through hole for the plugging auxiliary pipe to extend into, a side wall of the first fixing ring is provided with a first opening, two sides of the first opening are provided with first locking arms extending to the outside of the first fixing ring, and the first locking nut is in threaded fit with the first locking arms to lock the plugging auxiliary pipe in the first fixing ring.

In some embodiments, the main pipe locking mechanism includes a second fixing ring and a second locking nut, the second fixing ring is axially provided with a second limiting through hole for the main ventilation pipe to extend into, the side wall of the second fixing ring is provided with a second opening, two sides of the second opening are provided with second locking arms extending to the outer side of the second fixing ring, and the second locking nut is in threaded fit with the second locking arms to enable the main ventilation pipe to be locked in the second fixing ring.

In some embodiments, the tail end of the main ventilation pipe is provided with a breathing interface matched with an anesthetic breathing pipeline, the head end of the main ventilation pipe is provided with a main pipe sealing airbag, a main pipe inflation channel is arranged in the pipe wall of the main ventilation pipe, the head end of the main pipe inflation channel is connected to the main pipe sealing airbag, the tail end of the main pipe inflation channel is connected to a main pipe inflation pipe, and the tail end of the main pipe inflation pipe is provided with a main pipe inflation valve.

In some embodiments, the head end of the secondary plugging pipe is provided with a secondary pipe sealing air bag, a secondary pipe inflation channel is arranged in the pipe wall of the secondary plugging pipe, the head end of the secondary pipe inflation channel is connected to the secondary pipe sealing air bag, the tail end of the secondary pipe inflation channel is connected to a secondary pipe inflation pipe, and a secondary pipe inflation valve is arranged at the tail end of the secondary pipe inflation pipe.

In some embodiments, the blocking auxiliary tube is a hollow blocking tube with a head end and a tail end communicated with each other, the hollow blocking tube is provided with a connecting joint matched with the negative pressure suction tube and the oxygen supply tube, and an oxygen supply high-pressure safety valve communicated with the outside atmosphere in a one-way mode from the inner cavity of the hollow blocking tube is arranged.

In some embodiments, the blocking auxiliary tube is a hollow blocking tube with a head end and a tail end communicated with each other, the hollow blocking tube is provided with a connecting joint matched with the negative pressure suction tube and the oxygen supply tube, and a negative pressure low pressure safety valve communicated with the inner cavity of the hollow blocking tube in a one-way mode from the outside atmosphere is arranged.

In some embodiments, the tail part of the main ventilation pipe is provided with an oxygen supply high-pressure safety valve which is communicated with the outside atmosphere in a one-way mode from the inner cavity of the main ventilation pipe, and a gas leakage trigger alarm and an oxygen supply high-pressure safety valve closing device are arranged.

Compared with the prior art, the utility model has the advantages that:

1. the rear section of the plugging auxiliary tube is connected with the rear section of the ventilation main tube through a double-tube connecting mechanism, the outer diameter of the plugging auxiliary tube is less than 5mm, and the plugging auxiliary tube is arranged outside the inner cavity of the ventilation main tube, so that on one hand, the bronchus can not be blocked, and the ventilation of the lungs on two sides is realized; or blocking the mouth of one side bronchus to perform unilateral lung ventilation; on the other hand, the blocking auxiliary pipe is positioned in the trachea of the patient, the inner cavity of the trachea of the patient is fully utilized outside the inner cavity of the ventilation main pipe, the inner cavity of the trachea catheter is prevented from being occupied, the ventilation main pipe is matched with the inner cavity of the trachea of the patient, the largest mechanical ventilation cavity channel can be provided, the airway pressure of the patient during respiratory support is reduced to the greatest extent, the air pressure blocking device is particularly suitable for the patient with higher airway pressure, and ventilation barotrauma caused by the air pressure blocking device is reduced. The operation of children patients with small inner tracheal diameter is also particularly suitable;

2. the plugging secondary pipe and the ventilation main pipe are detachably fixed through a double-pipe connecting mechanism, and the positions of the rear section of the ventilation main pipe and the rear section of the plugging secondary pipe can be temporarily locked through the double-pipe connecting mechanism, so that the plugging secondary pipe can rotate along with the rotation of the ventilation main pipe. After the rotation, the head end of the blocking auxiliary tube can be adjusted to be placed in the bronchus on the other side to block the lung on the side, so that the operation can be conveniently carried out on the lung on the two sides respectively. The tail part of the blocking auxiliary tube can be operated by loosening the double-tube connecting mechanism, so that the blocking auxiliary tube independently rotates, advances or retreats or is separated from the main ventilation tube, the position of the blocking auxiliary tube can be conveniently adjusted according to the operation requirement, and the operation can be conveniently carried out on the lungs on two sides respectively. After the operation is finished, the blocking auxiliary tube can be withdrawn, and the main ventilation tube is continuously kept in the trachea of the patient with poor lung function, so that the mechanical ventilation and breathing support can be conveniently carried out on the patient after the operation is finished, and the trachea cannula operation is avoided again;

3. if the auxiliary plugging tube is hollow, sputum suction or oxygen supply can be carried out on the lung at the plugging side;

4. the tail end of the blocking auxiliary pipe is provided with an oxygen supply high-pressure safety valve and/or a negative pressure low-pressure safety valve, when the oxygen supply pressure is greater than a set value, air leakage is carried out through the oxygen supply high-pressure safety valve in time, and when the suction negative pressure is higher than the set value, air leakage is carried out through the negative pressure low-pressure safety valve in time, so that smooth implementation of an operation is guaranteed;

5. the tail part of the main ventilation pipe is provided with an oxygen supply high-pressure safety valve, and when the oxygen supply pressure is greater than a set value, air leakage is carried out through the oxygen supply high-pressure safety valve in time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of a unipulmonary ventilation management catheter of the present invention;

fig. 2 is a schematic structural view of another direction of the embodiment of the present invention;

FIG. 3 is a schematic structural view of an oxygen supply high pressure safety valve and a negative pressure low pressure safety valve in an embodiment of the present invention;

wherein:

1. a main ventilation pipe; 1-1, an auxiliary pipe clamping groove; 1-2, safety side holes; 1-3, clamping strips;

2. blocking the auxiliary pipe;

3. a connecting body; 3-1, a main pipe limiting part; 3-2, an auxiliary pipe limiting part; 3-3, a first fixed ring; 3-4, a first locking nut; 3-5, a first locking arm; 3-6, a second fixing ring; 3-7, a second lock nut; 3-8, a second locking arm;

4. the main pipe seals the air bag; 4-1, an auxiliary pipe limiting groove;

5. the auxiliary tube seals the air bag;

6. an oxygen supply high-pressure safety valve; 6-1, a first interface; 6-2, a first valve body; 6-2a, a first air leakage hole; 6-3, a first valve stem; 6-4, a first gasket; 6-5, a first spring;

7. a main pipe gas-filled pipe;

8. a main pipe inflation valve;

9. a secondary tube gas-filled tube;

10. a secondary pipe inflation valve;

11. a sputum suction tube;

12. a main video transmission line;

13. a negative pressure low pressure safety valve 13-1 and a second interface; 13-2, a second valve body 13-2a and a second air leakage hole; 13-3, a second valve stem; 13-4, a second gasket; 13-5, second spring

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.

Referring to fig. 1-3, for the utility model discloses embodiment 1's structural schematic diagram provides a unilung ventilation management pipe, including the person in charge 1 of ventilating, shutoff auxiliary pipe 2, and double-barrelled coupling mechanism, the shutoff auxiliary pipe 2 back end with ventilate and be in charge 1 back end through double-barrelled coupling mechanism connection, the setting of shutoff auxiliary pipe 2 is being ventilated and is being in charge 1 outside and the external diameter in the chamber of ventilating and be less than 5mm, the length of shutoff auxiliary pipe 2 is greater than the person in charge 1 of ventilating and the head end of shutoff auxiliary pipe 2 can extend to the place ahead of the person in charge 1 head end of ventilating. The rear section refers to a section of the main vent pipe 1 or the secondary plugging pipe 2 near the tail end portion.

The double-tube connecting mechanism can temporarily lock the positions of the rear section of the main ventilation tube 1 and the rear section of the secondary plugging tube 2, so that the secondary plugging tube 2 can rotate around the main ventilation tube 1 outside the ventilation cavity of the main ventilation tube 1 along with the rotation of the main ventilation tube 1, the main ventilation tube 1 is placed in the trachea of a patient when an operation is carried out, the secondary plugging tube 2 can rotate into the bronchus of an affected side along with the main ventilation tube 1, the lung of the affected side is plugged, so that the lung of the affected side can be quickly collapsed, a clear operation field is provided, and the main ventilation tube 1 can ventilate the lung of a healthy side. The tail part of the plugging auxiliary pipe 2 can be operated by loosening the double-pipe connecting mechanism, so that the plugging auxiliary pipe 2 independently rotates, moves forwards or backwards or is separated from the main ventilating pipe 1; before the operation, the blocking auxiliary tube 2 can be moved to a proper position to block the affected lung; when the operation of one lung is finished, the blocking auxiliary tube 2 can be rotated and adjusted to the lung on the other side for blocking; when the operation is finished, the blocking auxiliary tube 2 can be separated from the main ventilation tube 1, and the main ventilation tube 1 is left in the trachea to supply oxygen to the patient with poor lung function.

In this example, the double-pipe connection mechanism comprises a connection body 3, a main pipe limiting part 3-1 and an auxiliary pipe limiting part 3-2 are arranged on two sides of the connection body 3, the rear section of the ventilation main pipe 1 is embedded in the main pipe limiting part 3-1 in a matching way, and the rear section of the plugging auxiliary pipe 2 is embedded in the auxiliary pipe limiting part 3-2 in a matching way. Specifically, the main pipe limiting part 3-1 is a main pipe sleeve with an opening on the side wall, and the auxiliary pipe limiting part 3-2 is an auxiliary pipe sleeve sleeved outside the plugging auxiliary pipe 2. The ventilation main pipe 1 can be broken off from the main pipe limiting part 3-1 to be separated from the connecting main body 3, and the plugging auxiliary pipe 2 can be pulled out from the auxiliary pipe limiting part 3-2 to be separated from the connecting main body 3.

An auxiliary tube locking mechanism is arranged on the connecting main body 3, the positions of the connecting main body 3 and the plugging auxiliary tube 2 can be temporarily locked, and the tail of the plugging auxiliary tube 2 can be operated by loosening the auxiliary tube locking mechanism, so that the plugging auxiliary tube 2 independently rotates, moves forwards or backwards in the auxiliary tube limiting part 3-2 or is separated from the connecting main body 3. Specifically, the auxiliary pipe connecting and locking mechanism comprises a first fixing ring 3-3 and a first locking nut 3-4, the first fixing ring 3-3 is axially provided with a first limiting penetrating opening for the plugging auxiliary pipe 2 to extend into, the side wall of the first fixing ring is provided with a first opening, two sides of the first opening are provided with first locking arms 3-5 extending towards the outer side of the first fixing ring 3-3, and the first locking nut 3-4 is in threaded fit with the first locking arms 3-5 to enable the plugging auxiliary pipe 2 to be locked in the first fixing ring 3-3. When the operation is finished, the blocking auxiliary tube 2 needs to be withdrawn, and the first locking nut 3-4 is loosened, so that the blocking auxiliary tube 2 can be drawn out from the auxiliary tube limiting part 3-2.

A main pipe locking mechanism is also arranged on the connecting main body 3 and can temporarily lock the positions of the connecting main body 3 and the main ventilation pipe 1; the main tube locking mechanism is released, the tail part of the connecting body 3 can be operated, and the connecting body 3 is separated from the main ventilation tube 1. Specifically, the main pipe locking mechanism comprises a second fixing ring 3-6 and a second locking nut 3-7 which are arranged on the connecting main body 3, a second limiting penetrating opening for the main ventilation pipe 1 to extend into is axially arranged on the second fixing ring 3-6, a second opening is formed in the side wall of the second fixing ring, second locking arms 3-8 extending to the outer side of the second fixing ring 3-6 are arranged on two sides of the second opening, and the second locking nut 3-7 is in threaded fit with the second locking arms 3-8 so that the main ventilation pipe 1 is locked in the second fixing ring 3-6. In this embodiment, the main tube limiting portion and the main tube locking mechanism are both made of elastic materials, and when the operation is completed, the second locking nut 3-7 is loosened to separate from the second locking arm 3-6, and the main connecting body 3 is broken off from the main ventilation tube 1, so that the main connecting body 3 can be separated from the main ventilation tube 1, and the main ventilation tube 1 can be left in the trachea to supply oxygen to the patient with poor lung function.

The tail end of the main ventilation pipe 1 is provided with a breathing interface matched with an anesthesia breathing pipeline, and the ventilation in the main ventilation pipe 1 is used for supplying oxygen to the healthy side lung. The head end of the main ventilation pipe 1 is provided with a main pipe sealing air bag 4, the wall of the main ventilation pipe 1 is internally provided with a main pipe inflation channel, the head end of the main pipe inflation channel is connected to the main pipe sealing air bag 4, the tail end of the main pipe inflation channel is connected to the main pipe inflation pipe 7, the tail end of the main pipe inflation pipe 7 is provided with a main pipe inflation valve 8, and the main pipe inflation pipe 7 inflates the main pipe sealing air bag 4 to plug the trachea of a patient and avoid air leakage during oxygen supply to the healthy lung. In general, the main tube sealing airbag 4 is required to be installed when performing an operation on an adult, and the main tube sealing airbag 4 is not required to be installed when ventilating a child due to the special funnel shape of the child glottis.

The head end of the auxiliary blocking tube 2 is provided with an auxiliary tube sealing air bag 5, an auxiliary tube inflation channel is arranged in the tube wall of the auxiliary blocking tube 2, the head end of the auxiliary tube inflation channel is connected to the auxiliary tube sealing air bag 5, the tail end of the auxiliary tube inflation channel is connected to an auxiliary tube inflation tube 9, the tail end of the auxiliary tube inflation tube 9 is provided with an auxiliary tube inflation valve 10, the auxiliary tube inflation tube 9 inflates the auxiliary tube sealing air bag 5 to enable the auxiliary tube sealing air bag 5 to be attached to the inner wall of a bronchus of an affected side, so that the affected side lung is blocked, after gas in the affected side lung is discharged, the operated side lung is collapsed, the situation that the gas enters the affected side lung to cause the expanded affected side lung during mechanical ventilation is avoided, the thoracic cavity of the affected side has a larger space, and a clear operative field is provided for operation.

When the plugging auxiliary tube 2 is applied to children surgery, the plugging auxiliary tube is a solid tube body; when the device is applied to adult operations, the blocking auxiliary tube 2 is a hollow blocking tube with a head end and a tail end penetrating through, the hollow blocking tube is provided with a joint matched with the negative pressure suction tube and the oxygen supply tube, sputum or oxygen can be sucked or supplied to a patient, and the device is also provided with an oxygen supply high-pressure safety valve 6 which is communicated with the outside atmosphere in a one-way mode from the inner cavity of the hollow blocking tube or an oxygen supply high-pressure safety valve 6 which is communicated with the inner cavity of the hollow blocking tube in a one-way mode from the outside atmosphere when the oxygen supply pressure or the negative pressure is too high, the oxygen supply high-pressure safety valve 6 and the negative pressure low-pressure safety valve 19 leak gas, so that the operation safety is ensured.

When the ventilation of the single lung of a patient with poor lung function is insufficient to provide sufficient oxygen, the oxygen with continuous tension can be provided for the patient through the blocking auxiliary tube 2, so that the lung of the patient can also absorb partial oxygen. In patients with poorer lung function, it is necessary to use artificial lungs to assist the patient in providing adequate oxygenation during surgery.

Referring to fig. 3, the oxygen supply high pressure safety valve 6 comprises a first interface 6-1 arranged at the radial outer side of the joint, a first valve body 6-2 fixed on the first interface 6-1, and a first valve core arranged in the first valve body 6-2, wherein one end of the first valve body 6-2 far away from the first interface 6-1 is provided with a plurality of first air leakage holes 6-2a, the first valve core comprises a first valve rod 6-3 arranged in the first valve body 6-2 in a penetrating way, the first valve comprises a first gasket 6-4 arranged at the inner end of the first valve rod 6-3 and a first spring 6-5 arranged between the first gasket 6-4 and the first valve body 6-2, wherein the first gasket 6-4 is tightly attached to the first connector 6-1 under the elastic force action of the first spring 6-5 so as to seal the first connector 6-1. When the oxygen supply pressure is larger than the elastic force of the first spring 6-5, the first gasket 6-4 moves away from the first interface 6-1 under the action of the oxygen pressure, so that the oxygen in the joint leaks out from the first air leakage hole 6-2a after passing through the first interface 6-1.

The negative pressure low pressure safety valve 13 comprises a second interface 13-1 arranged at the radial outer side of the joint, a second valve body 13-2 sleeved on the second interface 13-1, and a second valve core arranged in the second valve body 13-2, wherein one end of the second valve body, far away from the second interface 13-1, is provided with a plurality of second air leakage holes 13-2a, the second valve core comprises a second valve rod 13-3 which is arranged in the second valve body 13-2 in a penetrating way and one end of the second valve rod is fixed on the second valve body 13-2, a second gasket 13-4 arranged at the inner end of the second valve rod 13-3, and a second spring 13-5 arranged between the second valve body 13-3 and the second interface 13-1, the second interface 13-1 is provided with a boss matched with the second gasket 13-4, and the second gasket 13-4 is tightly attached to the boss under the action of the second spring 13-5, when the negative pressure suction pressure is greater than the elastic force of the second spring 13-5, the second valve body 13-2 is sucked and moves towards the direction close to the second port 13-1, so that the second gasket 13-4 is separated from the boss, and air leakage occurs at the second port 13-1.

In order to facilitate the operation of the operation and improve the accuracy of the operation, a main pipe video acquisition head is arranged at the head end of the main ventilation pipe 1, and a main pipe video transmission line 12 for connecting the main pipe video acquisition head with a display screen is arranged at the main ventilation pipe 1; the head end of the auxiliary pipe 2 is provided with an auxiliary pipe video collecting head, and the auxiliary pipe video transmission line for connecting the auxiliary pipe video collecting head and the display screen is arranged on the auxiliary pipe.

In order to clear the incretion of the trachea, a sputum suction pipe 11 is arranged on the main ventilation pipe 1, a sputum suction port is arranged on the main ventilation pipe behind the main pipe sealing air bag 4, and a sputum suction channel is arranged in the pipe wall of the main ventilation pipe 1 and is connected with the sputum suction port and the sputum suction pipe 11.

In order to further improve the safety of operation implementation, the tail part of the main ventilation pipe 1 is provided with an oxygen supply high-pressure safety valve 6 which is communicated with the outside atmosphere in a one-way mode from the inner cavity of the main ventilation pipe 1, a gas leakage trigger alarm and an oxygen supply high-pressure safety valve closing device.

The utility model discloses a concrete operation flow does:

(1) before the intubation, the double-tube connecting mechanism is loosened, and the plugging auxiliary tube 2 is adjusted to retreat so that the head end of the plugging auxiliary tube 2 is adjacent to the main ventilation tube 1. And then locking the double-pipe connecting mechanism to lock the head end of the plugging auxiliary pipe 2 with the main ventilating pipe 1. After anesthesia induction, the main ventilation tube 1 and the auxiliary blocking tube 2 are simultaneously placed into the trachea of a patient through the glottis with the aid of an intubation tool and are placed to a proper depth which does not exceed the position of the carina, and the optimal position is 1-3cm above the carina. The position of the main ventilation tube 1 and the incisors of the patient is fixed.

(2) The main ventilator 1 is connected to a respiratory support apparatus to perform mechanical ventilation on a patient. It is noted that when the vent main tube 1 is provided with the main tube airbag 4, the main tube airbag 4 is inflated. At the moment, the double-tube connecting mechanism is loosened, the tail part of the auxiliary blocking tube 2 is operated, and the auxiliary blocking tube 2 is adjusted to advance or rotate, so that the head end of the auxiliary blocking tube 2 enters the side branch trachea of the operation. The positioning of the head end of the auxiliary blocking pipe 2 can be completed under a video endoscope, and if the head end of the main ventilating pipe 1 is provided with a main pipe video collecting head, the positioning can be completed under the main pipe video collecting head. After the positioning of the head end of the blocking auxiliary tube 2 is finished, the main ventilation tube 1 is separated from the respiratory support equipment, so that the gas in the lungs of the patient is discharged, and the two lungs of the patient collapse and collapse. And inflating the auxiliary tube sealing air bag 5 at the head end of the auxiliary tube 2 to ensure that the auxiliary tube 2 finishes the blockage of the affected side bronchus.

(3) And connecting the main ventilation pipe 1 with the respiratory support equipment again, and locking the double-pipe connecting mechanism to lock the head end of the secondary plugging pipe 2 with the main ventilation pipe 1 so as to avoid displacement of the two. At this time, the operated lung is kept in an atrophied and collapsed state, and an operation space is provided for the operation in the affected thoracic cavity. The non-surgical side lungs are mechanically ventilated with ventilator support to provide oxygenation to the patient. The operation in the chest cavity or the lung of the affected side can be safely and reliably carried out.

Locking in

(4) When the lung function of a patient is poor in operation and the ventilation and oxygen supply of a single lung are insufficient, oxygen can be supplied or phlegm can be sucked through the plugging auxiliary tube 2. Before the operation is finished, the air can be supplied through the tail part of the blocking auxiliary tube 2, and the tightness of the anastomosis joint of the lung operation is monitored.

(5) After the operation is finished, the air of the auxiliary tube sealing air bag 5 at the head end of the auxiliary tube 2 is pumped out, the air of the main tube sealing air bag 4 is pumped out, the double-tube connecting mechanism is loosened, the auxiliary tube 2 is retreated to separate the auxiliary tube 2 from the main ventilation tube 1, and the auxiliary tube 2 is pulled out of the oral cavity of the patient. Or simultaneously pulling out the double-pipe connecting mechanism.

(6) The main tube sealing air bag 4 is inflated again, and the ventilation main tube 1 is continuously used for carrying out respiratory support on the patient.

(7) If the other side of the lung or the thoracic cavity of the patient needs surgery, the air of the auxiliary tube sealing air bag 5 for plugging the head end of the auxiliary tube 2 is extracted, the air of the main tube sealing air bag 4 is extracted, the double-tube connecting mechanism is loosened, the auxiliary tube 2 is retreated and plugged a little, the head end of the auxiliary tube 2 is retreated to the front of the carina in the airway of the patient, the head end of the auxiliary tube 2 is advanced again and plugged, the head end of the auxiliary tube 2 enters the mouth of the other side of the airway, the auxiliary tube sealing air bag 5 for plugging the head end of the auxiliary tube 2 is inflated with air, the main tube sealing air bag 4 is inflated with air, the double-tube connecting mechanism is fixed, the main ventilation tube 1 is connected with the breathing support equipment, the positions of ventilation and the collapsed lung can be exchanged, and the surgery can be carried out on the other side.

(8) After the operation is finished, the air of the auxiliary tube sealing air bag 5 at the head end of the auxiliary tube 2 is pumped out, the air of the main tube sealing air bag 4 is pumped out, the double-tube connecting mechanism is loosened, the auxiliary tube 2 is retreated to separate the auxiliary tube 2 from the main ventilation tube 1, and the auxiliary tube 2 is pulled out of the oral cavity of the patient. Or simultaneously pulling out the double-pipe connecting mechanism. The main tube sealing air bag 4 is inflated again, and the ventilation main tube 1 is continuously used for carrying out respiratory support on the patient.

The above examples are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. A single lung ventilation management catheter, characterized by: the device comprises a main ventilation pipe (1), a secondary plugging pipe (2) and a double-pipe connecting mechanism, wherein the rear section of the secondary plugging pipe (2) is connected with the rear section of the main ventilation pipe (1) through the double-pipe connecting mechanism, and the secondary plugging pipe (2) is arranged outside a ventilation cavity of the main ventilation pipe (1) and is longer than the main ventilation pipe (1);

the double-pipe connecting mechanism comprises a connecting main body, wherein a main pipe limiting part (3-1) and an auxiliary pipe limiting part (3-2) are arranged on two sides of the connecting main body, the rear section of the ventilating main pipe (1) is embedded in the main pipe limiting part (3-1), and the rear section of the plugging auxiliary pipe (2) is embedded in the auxiliary pipe limiting part (3-2).

2. The mono-pulmonary ventilation management catheter of claim 1, wherein: the connecting main body (3) is provided with an auxiliary pipe locking mechanism which can temporarily lock the positions of the connecting main body (3) and the plugging auxiliary pipe (2); the tail part of the plugging auxiliary pipe (2) can be operated by loosening the auxiliary pipe locking mechanism, so that the plugging auxiliary pipe (2) can independently rotate, advance or retreat in the auxiliary pipe limiting part (3-2) or be separated from the connecting main body (3).

3. The mono-pulmonary ventilation management catheter of claim 1, wherein: the connecting body (3) is provided with a main pipe locking mechanism which can temporarily lock the positions of the connecting body (3) and the main ventilation pipe (1); and the tail part of the connecting main body (3) can be operated by loosening the main pipe locking mechanism, so that the connecting main body (3) is separated from the ventilation main pipe (1).

4. The mono-pulmonary ventilation management catheter of claim 2, wherein: the auxiliary pipe locking mechanism comprises a first fixing ring (3-3) and a first locking nut (3-4), the first fixing ring (3-3) is axially provided with a first limiting through hole for the plugging auxiliary pipe (2) to extend into, the side wall of the first limiting through hole is provided with a first opening, first locking arms (3-5) extending towards the outer side of the first fixing ring (3-3) are arranged on two sides of the first opening, and the first locking nut (3-4) is in threaded fit with the first locking arms (3-5) to enable the plugging auxiliary pipe (2) to be locked in the first fixing ring (3-3).

5. The mono-pulmonary ventilation management catheter of claim 3, wherein: the main pipe locking mechanism comprises a second fixing ring (3-6) and a second locking nut (3-7), the second fixing ring (3-6) is arranged on the connecting body (3), a second limiting through hole for the ventilating main pipe (1) to extend into is axially formed in the second fixing ring (3-6), a second opening is formed in the side wall of the second fixing ring, second locking arms (3-8) extending to the outer side of the second fixing ring (3-6) are arranged on two sides of the second opening, and the second locking nut (3-7) is in threaded fit with the second locking arms (3-8) to enable the ventilating main pipe (1) to be locked in the second fixing ring (3-6).

6. The mono-pulmonary ventilation management catheter of claim 1, wherein: the utility model discloses a breathing device, including the person in charge of ventilating, be equipped with person in charge air bag (4) in the person in charge of ventilating, be equipped with in the person in charge air channel in charge of ventilating (1) pipe wall, be connected to in charge air channel head end be connected to person in charge air bag (4), tail end connection is to be responsible for gas tube (7), person in charge gas tube (7) tail end sets up person in charge inflation valve (8).

7. The mono-pulmonary ventilation management catheter of claim 1, wherein: the head end of the plugging auxiliary pipe (2) is provided with an auxiliary pipe sealing air bag (5), an auxiliary pipe inflation channel is arranged in the pipe wall of the plugging auxiliary pipe (2), the head end of the auxiliary pipe inflation channel is connected to the auxiliary pipe sealing air bag (5), the tail end of the auxiliary pipe inflation channel is connected to an auxiliary pipe inflation pipe (9), and the tail end of the auxiliary pipe inflation pipe (9) is provided with an auxiliary pipe inflation valve (10).

8. The mono-pulmonary ventilation management catheter of claim 1 or 7, wherein: the blocking auxiliary pipe (2) is a hollow blocking pipe with a head end and a tail end communicated, the hollow blocking pipe is provided with a connecting joint matched with the negative pressure suction pipe and the oxygen supply pipe, and an oxygen supply high-pressure safety valve (6) communicated with the outside atmosphere in a one-way mode from the inner cavity of the hollow blocking pipe is arranged.

9. The mono-pulmonary ventilation management catheter of claim 1 or 7, wherein: the blocking auxiliary pipe (2) is a hollow blocking pipe with a head end and a tail end communicated, the hollow blocking pipe is provided with a connecting joint matched with the negative pressure suction pipe and the oxygen supply pipe, and a negative pressure low-pressure safety valve (13) communicated with the inner cavity of the hollow blocking pipe in a one-way mode from the outside atmosphere is arranged.

10. The mono-pulmonary ventilation management catheter of claim 1, wherein: the tail part of the main ventilation pipe (1) is provided with an oxygen supply high-pressure safety valve (6) which is communicated with the outside atmosphere in a one-way mode from the inner cavity of the main ventilation pipe (1), and a gas leakage trigger alarm and an oxygen supply high-pressure safety valve closing device are arranged.

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