Air cutting type bridge frame control balanced ventilation single-cavity lung isolation catheter

Abstract

The invention provides an air cutting type bridge frame control balanced ventilation single-cavity lung isolation catheter, and belongs to the technical field of medical instruments. Comprising a main tracheal catheter body and a bronchial catheter body connected to the tail end of the main tracheal catheter body, the outer wall of the tail end of the main tracheal catheter body and the outer wall of the tail end of the bronchial catheter body are connected with a main tracheal balloon and a bronchial balloon respectively, and the effects of sealing and fixing the main trachea and the bronchial tube of a patient can be achieved; the ventilation effect on bilateral lung balance can be achieved through spirally arranged air holes formed in the joint of the main tracheal catheter and the bronchial catheter and an air outlet hole formed in one side of the ball head body; by communicating an air source with an air blowing connecting line, air blowing force can be generated for turbine blades, so that a connecting column and a ball head can slowly rotate, the air supply direction of an air outlet hole located in the branch air pipe can be adjusted in real time, the risk that the air outlet hole is blocked is reduced, the device can be more suitable for on-site real-time operation, a guide pipe does not need to be inserted and pulled again, and the working efficiency is improved. Therefore, oxygen supply is always smooth.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a gas-cutting bridge-controlled balanced ventilation single-chamber lung isolation catheter. Background Art

[0002] The single-lumen catheter has a thinner diameter and is easy to intubate, which is suitable for difficult airways or children's airways. When the diameter of the single-lumen catheter is reduced compared to the double-lumen catheter, the available space for the occlusion balloon will increase. Since the balloon is made of a soft material, it can reduce the difficulty of positioning and effectively reduce the probability of damage to the vocal tract and airway mucosa.

[0003] The existing single-lumen catheter generally consists of a main catheter and a bronchial catheter, and air bags are connected in the main catheter and the bronchial catheter respectively to achieve fixed connection with the patient's main trachea and bronchus, and through the through hole fixedly opened at the connection between the main tracheal catheter and the bronchial catheter and the through hole opened at the end of the bronchial catheter, oxygen can be supplied to the bilateral lungs after being sealed by the air bag; but due to the randomness of the catheter insertion technique, after the catheter is inserted, the through hole fixedly opened at the connection between the main tracheal catheter and the bronchial catheter and the through hole opened at the end of the bronchial catheter may be blocked by the inner wall of the patient's trachea, and the state of the catheter needs to be adjusted, which is not only cumbersome to operate, but also causes discomfort to the patient. Summary of the invention

[0004] In view of the above problems, the present invention provides a single-chamber lung isolation catheter with a cut-gas bridge-controlled balanced ventilation, comprising a main tracheal catheter, a bronchial catheter, a main air bag, a bronchial air bag, a spherical air outlet component and spirally arranged air holes, wherein the spherical air outlet component comprises a ball head, an air outlet hole, a connecting column, an air shield, a turbine blade, and an inner fixing ring;

[0005] The terminal interface of the main tracheal tube is connected to a bronchial tube, the main airbag is connected to the terminal outer wall of the main tracheal tube, the ball head is screwed to the terminal interface of the bronchial tube through a connecting column damping seal, the bronchial airbag is connected to the terminal outer wall of the bronchial tube, and one side of the ball head body is arranged with an air outlet;

[0006] An air shield is fixed in the inner hole of the end of the bronchial tube, a turbine blade is fixed in the inner hole of the head end of the connecting column, an inner fixed ring is fixed to the inner ends of the turbine blades in an array, and the expanded end of the air shield is fixed to the inner hole of the bronchial tube, and the closed end of the air shield can be extended into the inner fixed ring, and an air blowing pipeline connected to the main body of the air shield is buried in the main tracheal tube and the main body of the bronchial tube;

[0007] The spirally arranged pores are provided at the connection between the end of the main tracheal tube and the head of the bronchial tube.

[0008] Furthermore, the head end interface of the main tracheal tube is also connected to a main joint, which can be quickly connected to an external air source through the main joint.

[0009] Furthermore, a first inflation line is embedded in the main body of the main tracheal catheter, the outlet end of the first inflation line is connected to the interior of the main airbag, and the inlet end of the first inflation line is connected to a first inflation valve, which can inflate and deflate the main airbag.

[0010] Furthermore, a second inflation line is buried in the main body of the main tracheal catheter and the bronchial catheter. The outlet end of the second inflation line is connected to the interior of the bronchial airbag, and the inlet end of the second inflation line is connected to a second inflation valve, which can inflate and deflate the bronchial airbag.

[0011] Furthermore, an inner sealing spiral groove is provided at the inner hole of the end of the bronchial tube, an inner sealing spiral sleeve is fixed at the position where the outer side of the connecting column and the outer wall of the ball head meet, an outer sealing spiral groove is also provided on the outer side of the end of the bronchial tube, an outer sealing spiral sleeve is fixed concentrically with the outer wall of the ball head and the inner sealing spiral sleeve, the inner sealing spiral sleeve is sealingly screwed into the inner sealing spiral groove, and the outer sealing spiral sleeve is sealingly screwed onto the outside of the outer sealing spiral groove.

[0012] Furthermore, rotating tables are evenly fixed on the outside of the connecting column, and the rotating tables are arranged concentrically. An inner rotating groove is provided in the inner hole at the end of the bronchial tube, and the rotating tables are rotatably connected in the inner rotating groove.

[0013] Furthermore, an air blowing line connected to an air shield is buried in the main body of the main tracheal tube and the bronchial tube, and an air inlet end of the air blowing line is connected to an air blowing valve.

[0014] By adopting the above technical solution, the present invention can achieve the following beneficial effects:

[0015] (1) The present invention is based on the traditional main tracheal tube and bronchial tube, and creatively provides spirally distributed spirally arranged air holes at the position where the main tracheal tube and the bronchial tube are connected. Compared with the traditional method of only providing fixed-position through holes at the position where the main tracheal tube and the bronchial tube are connected, the spirally distributed spirally arranged air holes can not only protect the connection structure of the bronchial tube and the main tracheal tube, making it less likely to bend, but also form an all-round, three-dimensional ventilation effect through the spirally arranged air holes;

[0016] (2) The ball head of the present invention is a spherical structure, which has the advantage that it can not only make the process of penetrating the bronchus smoother and reduce the risk of damaging the inner wall of the bronchus, but also based on the spherical structure of the ball head, the air outlet holes opened on the ball head body can be arranged in a non-planar manner, thereby reducing the risk of ventilation obstruction;

[0017] (3) The ball head of the present invention is sealed and screwed to the terminal interface of the bronchial tube through the inner sealing rotary sleeve and the outer sealing rotary sleeve of the double-layer structure on the outer side of the connecting column, and a turbine blade is creatively fixed in the inner hole of the connecting column. The external air source enters the blowing line to generate air force to blow the turbine blade, so that the connecting column can rotate slowly, thereby adjusting the position of the air outlet, which is more suitable for on-site processing operations in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0019] Figure 1 A schematic diagram of the overall structure of a single-chamber lung isolation catheter with a cut-gas bridge-controlled balanced ventilation provided by the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the spherical air outlet assembly connected to the bronchial catheter of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the ball head part of the present invention;

[0022] Figure 4 It is a schematic diagram of the connection structure of the rotating table part of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the air shield part of the present invention.

[0024] Figure markings: 1. main tracheal catheter; 2. main joint; 3. main air bag; 4. first inflation line; 5. first inflation valve; 6. bronchial catheter; 7. bronchial air bag; 8. spherical air outlet assembly; 9. second inflation line; 10. second inflation valve; 11. blowing line; 12. blowing valve; 13. spirally arranged air holes; 801. ball head; 802. air outlet; 803. connecting column; 804. inner sealing rotary sleeve; 805. inner sealing rotary groove; 806. outer sealing rotary groove; 807. outer sealing rotary sleeve; 808. inner rotating groove; 809. rotating table; 810. air shield; 811. turbine blade; 812. inner fixed ring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Please refer to the attached Figure 1-5 An example is given to describe a single-chamber lung isolation catheter with a gas-cutting bridge-controlled balanced ventilation provided by the present invention.

[0027] Embodiment 1:

[0028] The cut-gas bridge controlled balanced ventilation means that after the main tracheal tube 1 is inserted into the main trachea of ​​the patient, the bronchial tube 6 is inserted into the bronchus of the patient, and the main airbag 3 and the bronchial airbag 7 are inflated, the oxygen source entering the main tracheal tube 1 through the main connector 2 can form a balanced state through the circulation of the spirally arranged air holes 13 and the air outlet holes 802. The specific implementation example is as follows: Figure 1 and Figure 2 As shown;

[0029] The end interface of the main tracheal tube 1 is connected to the bronchial tube 6, and the inner hole of the main tracheal tube 1 is communicated with the inner hole of the bronchial tube 6. The main airbag 3 is connected to the outer wall of the end of the main tracheal tube 1 and can be inflated and deflated. The ball head 801 is screwed to the end interface of the bronchial tube 6 through the connecting column 803 with damping seal. The bronchial airbag 7 is connected to the outer wall of the end of the bronchial tube 6 and can be inflated and deflated. An air outlet 802 is arranged on one side of the main body of the ball head 801.

[0030] The purpose of setting the ball head 801 into a spherical shape is to make the ball head 801 more smoothly inserted into the patient's bronchus. A spirally arranged air hole 13 is provided at the connection between the end of the main tracheal tube 1 and the head of the bronchial tube 6. The spirally arranged air holes 13 are distributed in a spiral along the main tracheal tube 1 and the main body of the bronchial tube 6, and are located between the main air bag 3 and the bronchial air bag 7.

[0031] The purpose of setting the spirally arranged pores 13 in a spiral distribution is, on the one hand, to make the spirally arranged pores 13 form a three-dimensional uniform distribution along the outside of the main tracheal tube 1 and the bronchial tube 6, which is more convenient for free bending during operation, so that the pores 13 will not be bent in a certain direction during bending; on the other hand, the spiral distribution of the spirally arranged pores 13 can form a three-dimensional all-round and uniform ventilation effect;

[0032] The through hole between the main airbag 3 and the bronchial airbag 7 in the existing catheter is fixedly opened in a certain direction, which has the disadvantage of easy ventilation obstruction; on the one hand, it reduces the difficulty of operation, and on the other hand, it can reduce the risk of damaging the inner wall of the bronchus;

[0033] The main tracheal tube 1 is also connected to a main connector 2 at the head end interface, and can be quickly connected to an external gas source through the main connector 2;

[0034] A first inflation line 4 is embedded in the main body of the main tracheal tube 1, the outlet end of the first inflation line 4 is connected to the inside of the main airbag 3, and the inlet end of the first inflation line 4 is connected to a first inflation valve 5, which can inflate and deflate the main airbag 3;

[0035] A second inflation line 9 is also buried in the main body of the main tracheal tube 1 and the bronchial tube 6. The outlet end of the second inflation line 9 is connected to the inside of the bronchial airbag 7. The inlet end of the second inflation line 9 is connected to a second inflation valve 10, which can inflate and deflate the bronchial airbag 7.

[0036] The first inflation valve 5 and the second inflation valve 10 can both maintain the pressure of the inflated gas, so that after the main airbag 3 and the bronchial airbag 7 are inflated, they will not be easily deflated;

[0037] When the patient needs bilateral lung ventilation, the main tracheal tube 1 is inserted into the main trachea of ​​the patient, and the bronchial tube 6 is inserted into the bronchus on one side;

[0038] By connecting the external air source with the first inflation valve 5 and the second inflation valve 10, the main airbag 3 and the bronchial airbag 7 can be inflated respectively, so that the main airbag 3 can fit with the inner wall of the patient's main trachea, and the bronchial airbag 7 can fit with the inner wall of the patient's bronchus, and form a sealing and fixing effect;

[0039] The main connector 2 can be connected to an external oxygen source. The oxygen source entering the main tracheal tube 1 from the main connector 2 will flow to the bronchus on the other side through the spirally arranged air holes 13 to supply oxygen to the other lung.

[0040] On the other hand, the oxygen source will enter the inner hole of the air shield 810 through the end of the bronchial tube 6. Since the closed inner hole of the air shield 810 extends into the inner fixing ring 812, the oxygen source will not form a blowing force on the turbine blades 811. Then the oxygen source enters the inner cavity of the ball head 801 and flows from the air outlet 802 to the current lung. The main bronchial tube 1 and the bronchial tube 6 with a single cavity structure can realize the balanced oxygen supply operation of both lungs.

[0041] Embodiment 2:

[0042] Based on the first embodiment, the present invention adjusts the position of the air outlet 802 in an example as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown;

[0043] An air shield 810 is fixed in the inner hole of the end of the bronchial tube 6, a turbine blade 811 is fixed in the inner hole of the head end of the connecting column 803, an inner fixed ring 812 is fixed to the inner ends of the array of turbine blades 811, and the expanded end of the air shield 810 is fixed to the inner hole of the bronchial tube 6, and the closed end of the air shield 810 can be inserted into the inner fixed ring 812 without interfering with the rotation of the inner fixed ring 812. An air blowing pipeline connected to the main body of the air shield 810 is buried in the main tracheal tube 1 and the bronchial tube 6;

[0044] An inner sealing spiral groove 805 is provided at the inner hole of the end of the bronchial tube 6, an inner sealing spiral sleeve 804 is fixed at the position where the outer side of the connecting column 803 and the outer wall of the ball head 801 meet, an outer sealing spiral groove 806 is also provided at the outer side of the end of the bronchial tube 6, an outer sealing spiral sleeve 807 is fixed concentrically with the outer wall of the ball head 801 and the inner sealing spiral sleeve 804, the inner sealing spiral sleeve 804 is sealed and screwed into the inner sealing spiral groove 805, and the outer sealing spiral sleeve 807 is sealed and screwed into the outer side of the outer sealing spiral groove 806. By respectively arranging the inner sealing spiral sleeve 804 and the outer sealing spiral sleeve 807 on the inner and outer sides of the interface of the end of the bronchial tube 6, the sealing effect of the screw connection can be improved;

[0045] The inner sealing rotary sleeve 804 and the inner sealing rotary groove 805 as well as the outer sealing rotary sleeve 807 and the outer sealing rotary groove 806 are interference fits, and there is a certain rotation resistance, which can play a certain damping effect;

[0046] The outer surface of the connecting column 803 is evenly fixed with a rotating platform 809, and the rotating platforms 809 are arranged concentrically. An inner rotating groove 808 is provided in the inner hole at the end of the bronchial tube 6, and the rotating platform 809 is rotatably connected in the inner rotating groove 808;

[0047] The rotating connection mode of the rotating platform 809 formed by the inner rotating groove 808 can prevent the connecting column 803 from being easily dislocated when the connecting column 803 is rotatingly connected with the bronchial tube 6;

[0048] An air blowing line 11 connected to the air shield 810 is buried in the main body of the main tracheal tube 1 and the bronchial tube 6, and an air blowing valve 12 is connected to the air inlet end of the air blowing line 11;

[0049] By connecting the external air source to the air blowing valve 12 and using the air blowing line 11 as a channel, the turbine blade 811 can be blown. Due to the structure of the turbine blade 811 itself, the gas blown to the turbine blade 811 will slowly drive the rotation of the connecting column 803, thereby slowly driving the rotation of the ball head 801 to adjust the ventilation direction of the air outlet 802.

[0050] Due to the randomness of the insertion process, after the spherical air outlet component 8 connected to the end is inserted into the bronchus, the smoothness of ventilation of the air outlet hole 802 cannot be guaranteed;

[0051] Therefore, after the insertion is completed, the position of the air outlet 802 needs to be adjusted in real time;

[0052] By connecting the external air source to the air blowing valve 12, air with a certain pressure can enter the space between the air shield 810 and the turbine blade 811 from the air blowing connection line 11, and generate aerodynamic force to drive the rotation of the turbine blade 811. Since the turbine blade 811 is fixedly connected to the connecting column 803, it can drive the connecting column 803 and the ball head 801 to rotate slowly;

[0053] Furthermore, the gas source entering the blowing valve 12 can be the same as the gas source entering the main connector 2, so that the purpose of synchronous oxygen supply can be achieved by adjusting the orientation of the air outlet 802.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A single-chamber lung isolation catheter with a cut-gas bridge-controlled balanced ventilation, comprising a main tracheal catheter (1) and a bronchial catheter (6), characterized in that: It also includes a main air bag (3), a bronchial air bag (7), a spherical air outlet component (8) and spirally arranged air holes (13); The spherical air outlet component (8) comprises a ball head (801), an air outlet hole (802), a connecting column (803), an air shield (810), turbine blades (811) and an inner fixing ring (812); The terminal interface of the main tracheal tube (1) is connected to a bronchial tube (6), the main air bag (3) is connected to the terminal outer wall of the main tracheal tube (1), the ball head (801) is screwed to the terminal interface of the bronchial tube (6) through a connecting column (803) with a damping seal, the bronchial air bag (7) is connected to the terminal outer wall of the bronchial tube (6), one side of the main body of the ball head (801) is provided with an air outlet hole (802), an air shield (810) is fixed in the terminal inner hole of the bronchial tube (6), and the head of the connecting column (803) is provided with an air outlet hole (802). A turbine blade (811) is fixed in the inner hole of the end, and the inner ends of the array of turbine blades (811) are commonly fixed with an inner fixing ring (812), and the flared end of the air shield (810) is fixed to the inner hole of the bronchial tube (6), and the closed end of the air shield (810) can extend into the inner fixing ring (812), and an air blowing pipeline connected to the main body of the air shield (810) is buried in the main body of the main tracheal tube (1) and the bronchial tube (6), and the spirally arranged air holes (13) are opened at the connection between the end of the main tracheal tube (1) and the head of the bronchial tube (6).

2. According to claim 1, a gas-cutting bridge-controlled balanced ventilation single-chamber lung isolation catheter is characterized in that: The head end interface of the main tracheal tube (1) is also connected to a main connector (2).

3. A gas-cutting bridge-controlled balanced ventilation single-chamber lung isolation catheter according to claim 1 or 2, characterized in that: A first inflation line (4) is embedded in the main body of the main tracheal catheter (1); an outlet end of the first inflation line (4) is connected to the interior of the main airbag (3); and an inlet end of the first inflation line (4) is connected to a first inflation valve (5).

4. A gas-cutting bridge-controlled balanced ventilation single-chamber lung isolation catheter according to claim 1 or 2, characterized in that: A second inflation line (9) is also buried in the main body of the main tracheal catheter (1) and the bronchial catheter (6), the outlet end of the second inflation line (9) is connected to the interior of the bronchial airbag (7), and the inlet end of the second inflation line (9) is connected to a second inflation valve (10).

5. A gas-cutting bridge-controlled balanced ventilation single-chamber lung isolation catheter according to claim 1 or 2, characterized in that: An inner sealing spiral groove (805) is provided at the inner hole of the end of the bronchial tube (6); an inner sealing spiral sleeve (804) is fixed at a position where the outer surface of the connecting column (803) and the outer wall of the ball head (801) meet; an outer sealing spiral groove (806) is also provided at the outer surface of the end of the bronchial tube (6); an outer sealing spiral sleeve (807) is fixed concentrically with the outer wall of the ball head (801) and the inner sealing spiral sleeve (804); the inner sealing spiral sleeve (804) is sealingly screwed into the inner sealing spiral groove (805); and the outer sealing spiral sleeve (807) is sealingly screwed onto the outside of the outer sealing spiral groove (806).

6. The single-chamber lung isolation catheter with a cut-gas bridge-controlled balanced ventilation according to claim 5, characterized in that: A rotating platform (809) is evenly fixed on the outside of the connecting column (803), an inner rotating groove (808) is opened in the inner hole at the end of the bronchial tube (6), and the rotating platform (809) is rotatably connected in the inner rotating groove (808).

7. A gas-cutting bridge-controlled balanced ventilation single-chamber lung isolation catheter according to claim 1, 2 or 6, characterized in that: An air blowing line (11) connected to an air shield (810) is embedded in the main bodies of the main tracheal tube (1) and the bronchial tube (6), and an air inlet end of the air inlet line (11) is connected to an air inlet valve (12).

Images