CN111840733A

CN111840733A - Visual single-cavity four-bag bronchial catheter

Info

Publication number: CN111840733A
Application number: CN202010906306.9A
Authority: CN
Inventors: 蒋克泉; 陈蕾
Original assignee: FIFTH PEOPLE'S HOSPITAL OF SHANGHAI
Current assignee: FIFTH PEOPLE'S HOSPITAL OF SHANGHAI
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2020-10-30

Abstract

The invention relates to the technical field of medical instruments, in particular to a visual single-cavity four-bag bronchial catheter which comprises a main catheter, wherein one end of the main catheter is provided with a connector connected with an external respirator or anesthetic, a visual point is arranged on the main catheter and is connected with an external visual device by a data connecting line.

Description

Visual single-cavity four-bag bronchial catheter

Technical Field

The invention relates to the technical field of medical instruments, in particular to a visible single-cavity four-bag bronchial catheter.

Background

The lung isolation operation is a common breathing management method for thoracic surgery, separates the ventilation paths of the left and right lungs, selectively ventilates the single lung, prevents blood and sputum of the lung at the diseased side from flowing into the healthy side, and simultaneously, the operative side lung atrophy can provide good exposure for the operator. With the advance of medicine, bronchial lavage, modern minimally invasive thoracic surgery and lung transplantation all require effective single lung ventilation. However, the following problems still exist at present: 1. the double-cavity bronchial catheter has a thick pipe diameter, and has great damage to human tissues and organs through which the catheter passes; 2. the physiological anatomy of each person has individual difference, and the diameter of the pipe is difficult to control; 3. due to anatomical difference of the main bronchus at two sides, the left and right bronchus are easy to be inserted reversely, and the damage degree of repeated operation is increased.

The prior patent CN204181987U discloses a single-cavity four-bag bronchial catheter, which adopts an inner air bag of a blocking section, an outer air bag of the blocking section, a side hole sealing air bag and an air bag of the air pipe to realize the control of the isolation, the blocking and the ventilation of two lungs; if the lung operation is performed on the other side, the side hole is closed, and the air sac in the blocking section is ventilated; thereby solving the above problems.

However, the following problems still exist in the patent: all the paths which pass through cannot be seen clearly, and the traditional auscultation method and the sputum suction tube positioning method are only used for suction, which can cause inaccurate positioning and is difficult for beginners.

Therefore, a visible single-cavity four-bag bronchial catheter which can clearly observe the passing path of the catheter and can be accurately positioned is necessary.

Disclosure of Invention

The invention breaks through the difficult problems in the prior art and designs the visible single-cavity four-bag bronchial catheter which can clearly observe the passing path of the catheter and can accurately position.

In order to achieve the purpose, the invention designs a visible single-cavity four-bag bronchial catheter which comprises a main catheter, wherein one end of the main catheter is provided with a connector connected with an external respirator or an anesthesia machine, and the visible single-cavity four-bag bronchial catheter is characterized in that: the main body catheter is provided with a visual point, and the visual point is connected with an external visual device by using a data connecting line.

Furthermore, 4 air bags are arranged on the main body catheter, namely 3 outer wall air bags and 1 inner wall air bag respectively, a first outer wall air bag is arranged at the position close to the joint, a third outer wall air bag is arranged at the position far away from the joint, the second outer wall air bag is positioned between the first outer wall air bag and the third outer wall air bag, and an inner wall air bag is also arranged between the first outer wall air bag and the second outer wall air bag;

the outer wall air bag and the inner wall air bag are respectively connected with corresponding inflation valves by utilizing vent pipes.

Furthermore, a side opening is arranged on the side wall of the main catheter between the inner wall air bag and the first outer wall air bag.

Further, the point of sight is located between the third outer wall bladder and the second outer wall bladder.

Further, the main body catheter is composed of a bending portion and a vertical portion, the third outer wall airbag is located at the bending portion, and the second, first outer wall airbags, inner wall airbags and side openings are located at the vertical portion.

Further, the visible point is located at a position where the bent portion communicates with the vertical portion.

Furthermore, the diameter range of the outer wall air bag in an inflated state is 3-5cm, and the diameter range of the inner wall air bag in the inflated state is 1-3 cm.

Further, the axial length of the inner wall air bag and the axial length of the outer wall air bag are both 1-3 cm.

Further, the length of the side opening is smaller than that of the outer wall balloon.

Furthermore, the main body conduit is made of a high molecular environment-friendly material.

Compared with the prior art, the visual point is designed, more beginners can clearly see all passing parts in a visual state in the process of inserting the catheter, the intubation technique is convenient to master, the operation is convenient and easy to master, meanwhile, the positioning is more accurate in the visual state, and the patient is prevented from being damaged by repeated intubation.

Drawings

Fig. 1 is a schematic structural view of a visible single-lumen four-cuff bronchial catheter in an embodiment.

Fig. 2 is a schematic view of a visible single lumen four-cuff bronchial catheter during unilateral left lung ventilation in one embodiment.

FIG. 3 is a schematic view of a visible single lumen four cuff bronchial catheter during unilateral right lung ventilation in accordance with one embodiment.

Fig. 4 is a schematic view of a single lumen four-cuff bronchial catheter in a two lung ventilation configuration according to an embodiment of the present invention.

Wherein, 1 is first outer wall gasbag, 2 is second outer wall gasbag, 3 are inner wall gasbags, 4 are third outer wall gasbags, 5 are the joint, 6 are the main part pipe, 7 are the side opening, 8 are the visible point, 9 are the breather pipe, 10 are the inflation valve, 81 are data connecting wire.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but is not to be construed as being limited thereto.

Referring to fig. 1, the invention designs a visible single-cavity four-bag bronchial catheter, which comprises a main catheter 6, wherein one end of the main catheter 6 is provided with a connector 5 connected with an external respirator or an anesthesia machine, and the other end of the main catheter can be inserted into a main bronchus to solve the ventilation problem of the lung at the side, a visible point 8 is arranged on the main catheter 6, and the visible point 8 is connected with an external visualization device by using a data connection line 81.

In normal catheterization in-process, the image that operator's accessible visual point 8 spreads carries out abundant observation and location to the pipe, can help more beginners clear see all positions of process under visual state, is convenient for master this intubate technique, makes this convenient operation and easily master, and simultaneously, the location is more accurate under visual state, avoids many times or intubate repeatedly to cause the damage to the patient.

Preferably, the main body catheter 6 is a single-lumen tube, the diameter of the lumen is smaller than that of a double-lumen bronchial catheter, and the injury to the organs and tissues of the passing human body is small in the process of intubation and tube drawing.

The thickness of the main body conduit 6 is generally the same as that of the normal No. 7 endotracheal tube, and the thickness of the main body conduit is reduced as much as possible under the condition that the main body conduit can well play the role. The length of the main pipeline 6 can be designed according to the actual condition of a patient, and the specific length can refer to the model and the length of a common double-cavity bronchial catheter.

Preferably, the main catheter 6 is provided with 4 balloons, namely 3 outer wall balloons and 1 inner wall balloon 3, the first outer wall balloon 1 is arranged at the position close to the joint 5, the third outer wall balloon 4 is arranged at the position far away from the joint 5, the second outer wall balloon 2 is arranged between the first outer wall balloon 4 and the third outer wall balloon 4, and the inner wall balloon 3 is arranged between the first outer wall balloon 1 and the second outer wall balloon 2;

the outer wall air bag and the inner wall air bag 3 are respectively connected with corresponding inflation valves 10 by utilizing vent pipes 9.

Specifically, the first outer wall airbag 1 is connected with a first inflation valve through a first vent pipe, and the first inflation valve controls inflation and deflation of the first outer wall airbag 1; the second outer wall air bag 2 is connected with a second inflation valve through a second vent pipe 9, and the second inflation valve controls the inflation and deflation of the second outer wall air bag 2; the third outer wall air bag 4 is connected with a third inflation valve through a third vent pipe, and the third inflation valve controls the inflation and deflation of the third outer wall air bag 4; the inner wall air bag 3 is connected with the inner wall inflation valve through an inner wall vent pipe, and the inner wall inflation valve controls the inflation and deflation of the inner wall air bag 3.

Wherein, the inner wall air bag 3 and the outer wall air bag are both set to be elliptical, and the inflation and deflation operations of the inflation air bag through the inflation valve 10 can complete the control of the ventilation of the unilateral lung and the bilateral lung.

Preferably, a side opening 7 is formed in the side wall of the main catheter 6 between the inner wall balloon 3 and the first outer wall balloon 1, the side opening 7 is arranged at a downward inclined angle so as to facilitate the passage of the sputum suction catheter, and the side opening 7 is formed along the length direction of the main catheter 6.

When the main body catheter 6 is inserted into the respective main trachea, unilateral ventilation of the contralateral lung can be accomplished by balloon inflation and ventilation of the side opening 7. The width of the side opening 7 should be sufficient for sufficient gas flow and for the function of the lateral lung unilung ventilation.

Preferably, the length of the side opening 7 is smaller than that of the outer wall airbag, and if the linear distance between both ends of the notch is too small (i.e., the length of the side opening 7 is too small), the flow rate of gas passing through the side is too small, and the problem of unipulmonary ventilation of the side lung cannot be satisfied; if the linear distance between the two ends of the gap is too large (i.e., the length of the side opening 7 is too large), the gas flow passing through the side is too large, and the problem of simultaneous ventilation of both lungs cannot be satisfied, or the ventilation of both lungs is not uniform.

Meanwhile, the width and the length of the side opening 7 can meet the requirement of placing a sputum suction tube, and operations such as sputum suction can be performed.

Preferably, the visual point 8 is located between the third outer wall balloon 4 and the second outer wall balloon 2, and at the same time, at a position where the bending part is communicated with the vertical part, so as to ensure that an operator can sufficiently observe and position the catheter through an image transmitted from the visual point 8 during normal catheter insertion.

Preferably, the main body catheter 6 is composed of a curved portion where the third outer wall balloon 4 is located and a vertical portion where the second, first outer wall balloon 1, inner wall balloon 3 and side opening 7 are located.

In the specific implementation, the invention is inserted into the left main trachea, and when unilateral left lung ventilation is required, the first outer wall air bag 1, the second outer wall air bag 2 and the third outer wall air bag 4 are inflated through the corresponding inflation valves 10, and the inner wall air bag 3 is deflated, as shown in fig. 2.

When unilateral right lung ventilation is required, the first outer wall air bag 1, the inner wall air bag 3 and the third outer wall air bag 4 can be inflated through the corresponding inflation valves 10, and the second outer wall air bag 2 is deflated, as shown in figure 3.

When the ventilation of the two lungs is required, the first outer wall airbag 1 and the third outer wall airbag 4 can be inflated through the corresponding inflation valves 10, and the second outer wall airbag 2 and the inner wall airbag 3 can be deflated, as shown in the attached figure 4, or the first outer wall airbag 1 can be inflated through the corresponding inflation valves 10, and the second outer wall airbag 2, the third outer wall airbag 4 and the inner wall airbag 3 can be deflated.

Preferably, the outer wall bladder has a diameter in the range of 3-5cm in the inflated state and the inner wall bladder 3 has a diameter in the range of 1-3cm in the inflated state.

Preferably, the axial length of the outer wall air bag and the axial length of the inner wall air bag 3 are both 1-3 cm.

In the specific implementation of the invention, four independent air bags with different colors and four independent inflation valves 10 with the same color as the corresponding inflation air bags can be designed, and the inflation and deflation of the inflation air bags are realized by operating the inflation valves 10, so that the inflation air bags at different positions can simultaneously complete the ventilation of the lung at one side and the ventilation of the lung at two sides when in inflation and deflation states respectively. Meanwhile, the inflatable air bags at different positions have the function of fixing the main tracheal catheter in an inflated state, so that the main tracheal catheter is prevented from moving up and down, and the inflatable air bags with different colors also have a positioning function.

The invention can realize the practicability of a double-cavity tube by using a single-cavity tube; meanwhile, no matter the main tracheal catheter is inserted into the left or right main tracheal catheter, the use effect is not influenced; the side opening 7 can also perform unilateral suction on the premise of meeting the ventilation; the visual point 8 is convenient to position on the premise of following trend, the intubation success rate is greatly improved, and the damage and the discomfort of a patient in the intubation process are reduced; the operation is simple for beginners, the grasping is easy, and the clinical use value is high.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and additions can be made without departing from the method of the present invention, and these modifications and additions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a four bag endotracheal tubes in visual single chamber, includes main part pipe, and the one end of main part pipe (6) is equipped with and connects (5) that are connected with outside breathing machine or anesthesia machine, its characterized in that: the main body catheter (6) is provided with 4 air bags, namely 3 outer wall air bags and 1 inner wall air bag (3), the position close to the joint (5) is a first outer wall air bag (1), the position far away from the joint (5) is a third outer wall air bag (4), the second outer wall air bag (2) is positioned between the first outer wall air bag and the third outer wall air bag (4), and the inner wall air bag (3) is also arranged between the first outer wall air bag (1) and the second outer wall air bag (2);

the outer wall air bag and the inner wall air bag (3) are respectively connected with corresponding inflation valves (10) by using vent pipes (9);

the main body catheter (6) is provided with a visual point (8), and the visual point (8) is connected with an external visualization device by using a data connecting line (81).

2. A visual single-lumen four-cuff bronchial catheter as set forth in claim 1, wherein: a side opening (7) is arranged on the side wall of the main body catheter (6) between the inner wall air bag (3) and the first outer wall air bag (1).

3. A visual single-lumen four-cuff bronchial catheter as set forth in claim 1, wherein: the viewing point (8) is located between the third outer wall airbag (4) and the second outer wall airbag (2).

4. A visual single-lumen four-cuff bronchial catheter as set forth in claim 1, wherein: the main body catheter (6) is composed of a bending portion and a vertical portion, the third outer wall airbag (4) is located at the bending portion, and the second outer wall airbag, the first outer wall airbag (1), the inner wall airbag (3) and the side opening (7) are located at the vertical portion.

5. A visual single-lumen four-cuff bronchial catheter as set forth in claim 3, wherein: the visual point (8) is located at a position where the curved portion communicates with the vertical portion.

6. A visual single-lumen four-cuff bronchial catheter as set forth in claim 1, wherein: the diameter range of the outer wall air bag is 3-5cm in an inflated state, and the diameter range of the inner wall air bag is 1-3cm in the inflated state.

7. A visual single-lumen four-cuff bronchial catheter as set forth in claim 1, wherein: the axial length of the outer wall air bag and the axial length of the inner wall air bag are both 1-3 cm.

8. A visual single-lumen four-cuff bronchial catheter as set forth in claim 2, wherein: the length of the side opening (7) is less than that of the outer wall airbag.

9. A visual single-lumen four-cuff bronchial catheter as set forth in claim 1, wherein: the main body conduit (6) is made of a high molecular environment-friendly material.