A single-chamber lung isolation catheter with a gas-cutting bridge-controlled balanced ventilation

Abstract

The present invention provides a single-chamber lung isolation catheter with a scalp-type bridge-controlled balanced ventilation, which belongs to the technical field of medical devices. The catheter comprises a main tracheal catheter and a bronchial catheter connected to the end of the main tracheal catheter. The outer walls of the ends of the main tracheal catheter and the bronchial catheter are respectively connected to a main air bag and a bronchial air bag, which can seal and fix the main trachea and bronchus of the patient; and the spirally arranged air holes at the connection between the main tracheal catheter and the bronchial catheter and the air outlet holes on one side of the ball head body can form a ventilation effect for both lungs; and by connecting the air source to the blowing line, air blowing force can be generated on the turbine blades, so that the connecting column and the ball head can rotate slowly, thereby adjusting the air supply direction of the air outlet hole in the bronchus in real time, reducing the risk of the air outlet hole being blocked, and being more suitable for real-time operation on site, without having to re-insert and unplug the catheter, to achieve smooth oxygen supply.

Description

Technical Field

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

[0002] Single-lumen catheters have a smaller diameter, making intubation easier and suitable for difficult airways or pediatric airways. The reduced diameter of single-lumen catheters compared to double-lumen catheters increases the available space for the occlusion cuff. The softness of the cuff reduces positioning and effectively reduces the risk of damage to the vocal tract and airway mucosa.

[0003] Existing single-lumen catheters generally consist of a main catheter and a bronchial catheter, with air bags connected to 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 both lungs after being sealed by the air bag; however, due to the randomness of the catheter insertion technique, 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 patient's tracheal inner wall after the catheter is inserted, 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] To address the above problems, the present invention provides a single-chamber lung isolation catheter with a slicing bridge-controlled balanced ventilation, comprising a main tracheal catheter, a bronchial catheter, a main air bag, a bronchial air bag, a spherical air outlet assembly, and spirally arranged air holes. The spherical air outlet assembly comprises a ball head, air holes, a connecting column, an air shield, turbine blades, and an inner fixing ring.

[0005] The end interface of the main tracheal tube is connected to a bronchial tube, the main airbag is connected to the outer wall of the end of the main tracheal tube, the ball head is screwed to the end interface of the bronchial tube through a connecting column damping seal, the bronchial airbag is connected to the outer wall of the end 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 distal 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 flared 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 inserted into the inner fixed ring. An air blowing pipeline connected to the air shield body is embedded 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 connector, which can be quickly connected to an external air source through the main connector.

[0009] Furthermore, a first inflation line is embedded in the main body of the main tracheal tube, 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 formed at the inner hole of the distal end of the bronchial tube, an inner sealing spiral sleeve is fixed at the position where the outer side of the connecting column meets the outer wall of the ball head, an outer sealing spiral groove is also formed on the outer side of the distal end of the bronchial tube, an outer sealing spiral sleeve is fixed concentrically with the outer wall of the ball head, 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 platforms are evenly fixed on the outside of the connecting column, and the rotating platforms are concentric in groups. An inner rotating groove is opened in the inner hole of the end of the bronchial tube, and the rotating platforms are rotatably connected in the inner rotating groove.

[0013] Furthermore, an air blowing line connected to an air shield is embedded 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 connection point between the main tracheal tube and the bronchial tube. Compared with the traditional method of only providing fixed-position through holes at the connection point between the main tracheal tube and the bronchial tube, the spirally distributed spirally arranged air holes can not only protect the connection structure between 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 has a spherical structure, which has the advantage of not only making the process of bronchial penetration smoother and reducing 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, 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, which can generate air force to blow the turbine blade, so that the connecting column can rotate slowly, thereby adjusting the position of the air outlet, and being 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 following briefly introduces the drawings required for describing the embodiments or the prior art.

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

[0020] Figure 2 This is a schematic diagram of the structure of the spherical air outlet component 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 Schematic diagram of the connection structure of the rotating table part of the present invention;

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

[0024] Figure markings: 1. Main tracheal catheter; 2. Main joint; 3. Main airbag; 4. First inflation line; 5. First inflation valve; 6. Bronchial catheter; 7. Bronchial airbag; 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] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall 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] Example 1:

[0028] The balanced ventilation controlled by the cut-off bridge 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. Figure 1 and Figure 2 As shown;

[0029] The distal end interface of the main tracheal tube 1 is connected to a bronchial tube 6, and the inner hole of the main tracheal tube 1 is in communication with the inner hole of the bronchial tube 6. The main airbag 3 is connected to the distal end outer wall of the main tracheal tube 1 and can be inflated and deflated. The ball head 801 is threadedly connected to the distal end interface of the bronchial tube 6 via a connecting post 803 with a damping seal. The bronchial airbag 7 is connected to the distal end outer wall 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 it easier to insert the ball head 801 into the patient's bronchus. A spirally arranged air hole 13 is formed at the connection between the end of the main tracheal tube 1 and the tip of the bronchial tube 6. The spirally arranged air holes 13 are distributed in a spiral along the main tracheal tube 1 and the bronchial tube 6, and are located between the main air bag 3 and the bronchial air bag 7.

[0031] The purpose of arranging the spirally arranged air holes 13 in a spiral distribution is, on the one hand, to form a three-dimensional uniform distribution of the spirally arranged air holes 13 along the outer surface of the main tracheal tube 1 and the bronchial tube 6, which is more convenient for free bending during operation and prevents bending in a certain direction during bending; on the other hand, the spiral distribution of the spirally arranged air holes 13 can achieve a three-dimensional, all-round, uniform ventilation effect.

[0032] The through hole between the main airbag 3 and the bronchial airbag 7 in the existing catheter is fixed in a certain direction, which has the disadvantage of easy ventilation blockage. 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 end interface of the main tracheal tube 1 is also connected to a main connector 2, which 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 interior of the main airbag 3. 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 embedded 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 interior 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] Furthermore, 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 one of the bronchus;

[0038] By connecting an external air source to 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 against the inner wall of the patient's main trachea, and the bronchial airbag 7 can fit against the inner wall of the patient's bronchus, forming 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 into 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 inner hole of the air shield 810 extends into the inner fixing ring 812, the oxygen source will not generate blowing force on the turbine blades 811. Then the oxygen source enters the inner cavity of the ball head 801 and flows into the front lung from the air outlet 802. By using the main tracheal tube 1 and bronchial tube 6 with a single cavity structure, a balanced oxygen supply operation for both lungs can be achieved.

[0041] Example 2:

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

[0043] An air shield 810 is fixed to the inner hole of the distal end of the bronchial tube 6, and a turbine blade 811 is fixed to the inner hole of the head end of the connecting column 803. The inner ends of the array of turbine blades 811 are commonly fixed to an inner fixing ring 812. 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 without interfering with the rotation of the inner fixing ring 812. An air insufflation pipeline connected to the main body of the air shield 810 is embedded in the main bronchial tube 1 and the bronchial tube 6.

[0044] An inner sealing groove 805 is defined at the inner hole of the distal end of the bronchial tube 6. An inner sealing sleeve 804 is fixed to the outer surface of the connecting post 803 where it meets the outer wall of the ball head 801. An outer sealing groove 806 is also defined on the outer surface of the distal end of the bronchial tube 6. An outer sealing sleeve 807 is fixed to the outer wall of the ball head 801 concentrically with the inner sealing sleeve 804. The inner sealing sleeve 804 is screwed in a sealing manner within the inner sealing groove 805, while the outer sealing sleeve 807 is screwed in a sealing manner outside the outer sealing groove 806. By providing the inner sealing sleeve 804 and the outer sealing sleeve 807 on the inner and outer sides of the distal end interface of the bronchial tube 6, respectively, the sealing effect of the screw connection can be improved.

[0045] Moreover, there is an interference fit between the inner sealing rotary sleeve 804 and the inner sealing rotary groove 805, as well as between the outer sealing rotary sleeve 807 and the outer sealing rotary groove 806. 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 rotating platforms 809, and the rotating platforms 809 are arranged concentrically. The inner hole of the end of the bronchial tube 6 is provided with an inner rotating groove 808, and the rotating platforms 809 are rotatably connected in the inner rotating groove 808.

[0047] The inner rotation groove 808 forms a snap-fitting rotation connection with the rotation platform 809, so that the connecting column 803 will not fall out easily when it is in rotational connection with the bronchial tube 6.

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

[0049] By connecting an 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 air blown toward the turbine blade 811 will slowly drive the rotation of the connecting column 803, thereby slowly driving the rotation of the ball head 801, thereby adjusting 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 smooth 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 an external air source to the air blowing valve 12, air with a certain pressure can be allowed to 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, thereby achieving the purpose of synchronous oxygen supply 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 above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above 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 tracheal 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 assembly (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 end interface of the main tracheal tube (1) is connected to a bronchial tube (6), the main air bag (3) is connected to the outer wall of the end of the main tracheal tube (1), the ball head (801) is screwed to the end interface of the bronchial tube (6) through a damping seal of the connecting column (803), the bronchial air bag (7) is connected to the outer wall of the end of the bronchial tube (6), one side of the main body of the ball head (801) is provided with an air outlet (802), an air shield (810) is fixed in the inner hole of the end of the bronchial tube (6), and the head end of the connecting column (803) is provided with an air outlet (802). A turbine blade (811) is fixed in the inner hole, and an inner fixing ring (812) is fixed to the inner ends of the array of turbine blades (811), 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 be inserted into the inner fixing ring (812). An air blowing pipeline connected to the main body of the air shield (810) is embedded 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); An inner sealing groove (805) is provided at the inner hole of the end of the bronchial tube (6), an inner sealing sleeve (804) is fixed at a position where the outer side of the connecting column (803) and the outer wall of the ball head (801) meet, an outer sealing groove (806) is also provided at the outer side of the end of the bronchial tube (6), an outer sealing sleeve (807) is fixed concentrically with the outer wall of the ball head (801) and the inner sealing sleeve (804), the inner sealing sleeve (804) is sealingly screwed into the inner sealing groove (805), and the outer sealing sleeve (807) is sealingly screwed onto the outside of the outer sealing groove (806); A rotating platform (809) is evenly fixed on the outside of the connecting column (803), and an inner rotating groove (808) is opened in the inner hole of the end of the bronchial tube (6), and the rotating platform (809) is rotatably connected in the inner rotating groove (808).

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

3. A single-chamber lung isolation catheter with a gas-cutting bridge-controlled balanced ventilation according to claim 1 or 2, characterized in that: A first inflation line (4) is embedded in the main body of the main tracheal tube (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 single-chamber lung isolation catheter with a gas-cutting bridge-controlled balanced ventilation according to claim 1 or 2, characterized in that: A second inflation line (9) is also embedded in the main bodies of the main tracheal tube (1) and the bronchial tube (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 single-chamber lung isolation catheter with a choanal bridge-controlled balanced ventilation according to claim 1 or 2, characterized in that: An air blowing connection line (11) connected to the air shield (810) is embedded in the main bodies 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 connection line (11).

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