CN112717247A

CN112717247A - Single-cavity bronchial catheter

Info

Publication number: CN112717247A
Application number: CN202110133998.2A
Authority: CN
Inventors: 曾凯; 杨瑞芝; 吴晓丹; 梁敏
Original assignee: First Affiliated Hospital of Fujian Medical University
Current assignee: First Affiliated Hospital of Fujian Medical University
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-04-30

Abstract

The invention discloses a single-cavity bronchial catheter, which comprises: an elongate tubular body defining a vent lumen therein and having a distal end and a proximal end; a first inflatable cuff disposed about the elongate tubular body proximal to the distal end; a second inflatable cuff disposed about the elongate tubular body proximal to the first inflatable cuff, the second inflatable cuff spaced apart from the first inflatable cuff; a lateral opening disposed on a wall of the elongate tubular body between the first inflatable cuff and the second inflatable cuff; an inflatable balloon located distal to the lateral opening in the vent lumen and being inflatable to occlude the vent lumen. Single chamber bronchial tube is applicable to right lung and left lung bronchial tube simultaneously for two-chamber bronchial tube, and because there are not two chambeies, the external diameter of whole trachea can reduce, easily inserts patient's air flue, can reduce the damage to patient's air flue.

Description

Single-cavity bronchial catheter

Technical Field

The invention relates to a medical instrument, in particular to a single-cavity bronchial catheter.

Background

During thoracic surgery anesthesia, lung isolation is required to protect the healthy lateral lung from contamination by secretions or blood drained from the affected lateral lung. In the prior art, a double-cavity bronchial catheter is used as a bronchial cannula so as to achieve the purposes of lung isolation and single-lung ventilation. The double-lumen bronchial catheter is divided into a left double-lumen bronchial catheter and a right double-lumen bronchial catheter, and is characterized in that the ventilation of a left main bronchus and a right main bronchus can be separated, so that both side lumens can be used, and anesthesia and ventilation can be performed only by using the side-healthy lumens. However, the existing double-cavity bronchial catheter has a plurality of defects: 1. the double-cavity bronchial catheter is divided into a left cavity and a right cavity, the requirement of the ventilation diameter ensures that the catheter body is thick and hard, and the airway is easy to damage when the trachea is intubated; 2. the diameter of the ventilation cavity of the double-cavity bronchial catheter is much smaller than that of the single-cavity bronchial catheter, so that airway resistance and airway pressure are increased; 3. the double-cavity bronchial catheter has thicker outer diameter and limited model, and is only suitable for adults; 4. the double-cavity bronchial catheter is divided into a left side catheter and a right side catheter, so that the types need to be selected according to actual operation requirements; 5. the double-cavity bronchial catheter is only used for bronchial ventilation and cannot be kept in a patient body for a long time, and for the patient who cannot pull out the catheter after an operation, life risks are undoubtedly increased by replacing the tracheal catheter.

Therefore, there is a need in the art for a new endotracheal tube that addresses the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a single-cavity bronchial catheter which has small outer diameter, small damage to an airway, reduced incidence of sore throat and hoarseness of a patient after operation, is suitable for children due to small outer diameter, has various models, can be randomly suitable for left or right bronchial intubation of the patient, and can be used as an endotracheal tube to be left in the airway of the patient after the operation of the patient is completed, so that the use convenience of the endotracheal tube is greatly improved.

In order to solve the above technical problem, the present assembly comprises:

an elongate tubular body defining a vent lumen therein and having a distal end and a proximal end;

a first inflatable cuff disposed about the elongate tubular body distal to the proximal end;

a second inflatable cuff disposed about the elongate tubular body distal to the first inflatable cuff, the second inflatable cuff spaced apart from the first inflatable cuff;

a lateral opening disposed on a wall of the elongate tubular body between the first inflatable cuff and the second inflatable cuff;

a switch located within the vent lumen distal to the lateral opening to open or close the vent lumen.

In some embodiments, the lateral opening is a closable opening.

In some embodiments, the elongate tubular body further comprises:

the plugging sheet moves in a direction close to or far away from the lateral opening to open or close the lateral opening;

and the driving device is connected with the plugging sheet and is used for driving the plugging sheet to move in the direction close to or far away from the lateral opening.

In some embodiments, the tube wall is provided with an accommodating area communicated with the lateral opening, and the blocking piece is slidably disposed in the accommodating area along a direction close to or far from the lateral opening so as to slide in the accommodating area in a direction close to or far from the lateral opening.

In some embodiments, the tube wall is provided with guide grooves extending along the sliding direction of the plugging sheet on two sides of the lateral opening, and both the guide grooves are communicated with the accommodating area to guide the plugging sheet to slide in the two guide grooves.

In some embodiments, the switch is an inflatable balloon that, in an inflated state, may occlude the vent lumen.

In some embodiments, the switch is a switch valve.

In some embodiments, the inflatable balloon is partially fixedly attached to an inner wall of the elongate tubular body.

In some embodiments, the single lumen bronchial catheter further comprises: a balloon catheter in communication with the inflatable balloon, the balloon catheter for connection with an external fluid source.

In some embodiments, the balloon catheter comprises: a balloon channel disposed within a wall of the elongate tubular body and an extension tube segment in communication with the balloon channel.

In some embodiments, the single lumen bronchial catheter further comprises: a camera and a lighting device disposed at a distal end of the elongate tubular body.

In some embodiments, the number of lateral openings is at least two.

In some embodiments, the receiving region and the lateral opening are arranged adjacent to each other in the longitudinal direction, the receiving region is located at a proximal side of the lateral opening, a closed inner cavity is arranged in a tubular wall of the elongated tubular body, the closed inner cavity is located at a proximal side of the receiving region, and the driving device includes:

the piston is arranged in the closed inner cavity and is in slidable sealing connection with the cavity wall of the closed inner cavity;

one end of the connecting rod is connected with the plugging sheet, and the other end of the connecting rod is connected with the piston;

a gas-filled tube in communication with the closed lumen at a proximal portion of the piston.

In some embodiments, the receiving region and the lateral opening are longitudinally adjacently aligned, and the receiving region is located on a side of the lateral opening facing the proximal end of the elongate tubular body;

wherein, the driving device is a control rod, one end of the control rod is connected with the plugging sheet, and the other end of the control rod extends out of the near end of the slender tubular body.

In some embodiments, the receiving areas are circumferentially adjacent to the lateral openings;

wherein, the driving device is a control lever, one end of the control lever is connected with the plugging sheet, and the other end extends out of the near end of the slender tubular body.

In some embodiments, the single lumen bronchial catheter further comprises: an adapter in communication with the proximal end of the elongate tubular body.

In some embodiments, the single-lumen bronchial catheter further comprises: the single-cavity tube movable cover is detachably arranged on the adapter and is an at least three-way adapter.

In some embodiments, the single lumen bronchial catheter further comprises: an auxiliary catheter disposed on the elongated tubular body, the auxiliary catheter having an opening at one end thereof on the distal side of the elongated tubular body and an opening at the other end thereof on the proximal side of the elongated tubular body.

In some embodiments, the auxiliary catheter is located at an opening on one side of the distal end of the elongate tubular body, distal to the lateral opening, and proximal to the second inflatable cuff.

Compared with the prior art, the scheme comprises the following steps: the first inflatable cuff, the second inflatable cuff, the switch element and the lateral opening between the first inflatable cuff and the second inflatable cuff are arranged in the main trachea and block the main trachea after inflation, otherwise, the lung is inflated and is not beneficial to operation, so that when the operation is performed on the lung at the affected side, the first inflatable cuff can be arranged in the main trachea and block the main trachea after inflation, meanwhile, the second inflatable cuff and the part of the slender tubular body provided with the switch element can be arranged in the bronchus at the affected side, the second inflatable cuff blocks the bronchus at the affected side after inflation, the switch element closes the ventilation cavity, the lateral opening is aligned with the healthy side lung, and at the moment, anesthetic gas or oxygen is injected into the slender tubular body, and the lung at the affected side is blocked by the second inflatable cuff and the switch element, so that anesthetic gas or oxygen can only enter the healthy side lung, therefore, the purposes of lung isolation and ventilation of a single lung can be realized, and after the channel of the affected lung side is blocked, the dirt in the affected lung side can be prevented from flowing back to the inside of the healthy lung side in the operation process.

In conclusion, because the single-cavity bronchial catheter can also realize the purposes of lung isolation, unilateral ventilation and bilateral ventilation, therefore, the single-cavity bronchial catheter can also realize the function of the double-cavity bronchial catheter, and compared with the double-cavity bronchial catheter, because two cavities are not provided, the outer diameter of the whole trachea can be reduced, the trachea cannula is easy to be inserted into the patient airway, the injury to the patient airway can be reduced, but also is suitable for children due to small outer diameter, and simultaneously, because the single-cavity bronchial catheter has small outer diameter, after the operation of the patient is finished, the tracheal catheter can be used as a tracheal catheter to be left in the airway of the patient, in addition, as the scheme adopts the single cavity, the inner diameter of the single lumen tube is thus again larger than the inner diameter of either catheter of the dual lumen tube, and compared to the dual lumen tube, the airway resistance and airway pressure are both much smaller, thus greatly improving the use convenience of the tracheal catheter.

Drawings

FIG. 1 is a schematic structural view of a single lumen bronchial catheter in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a single lumen bronchial catheter according to an embodiment of the present invention in a human body;

FIG. 3 is a schematic diagram of a balloon channel configuration according to an embodiment of the invention;

FIG. 4 is a schematic view of the driving device with the piston therein, the accommodation area and the lateral opening being arranged longitudinally;

FIG. 5 is a schematic structural view of the driving device with the control lever therein, wherein the accommodation region is longitudinally arranged with the lateral opening and is located in the middle of the wall of the elongated tubular body;

FIG. 6 is a schematic structural view of the driving device with a control lever therein when the receiving area is longitudinally aligned with the lateral opening and the receiving area is located on the inner wall of the elongated tubular body;

FIG. 7 is a schematic structural view of the driving device with the control lever therein, wherein the accommodation region is transversely arranged with the lateral opening and is located in the middle of the wall of the elongated tubular body;

FIG. 8 is a schematic structural view of the driving device with the joystick therein when the receiving area is transversely aligned with the lateral opening and the receiving area is located on the inner wall of the elongated tubular body;

FIG. 9 is a schematic diagram of a single lumen tube flap according to an embodiment of the present invention.

Description of reference numerals:

1. an elongate tubular body; 11. a lateral opening; 12. a vent lumen; 13. a distal end; 14. a proximal end; 15. a plugging sheet; 1611. sealing the inner cavity; 1612. a piston; 1613. a connecting rod; 1614. an inflation tube; 1621. a control channel; 1622. a control lever; 1623. a circular limiting ring; 1624. a vertical limiting strip; 1631. a manipulation channel; 1632. a joystick; 1633. a flat limiting ring; 1634. a transverse limiting strip; 1635. a transverse slideway; 17. an accommodating area; 18. a guide groove; 19. a tube wall; 2. a first inflatable cuff; 21. a first conduit; 3. a second inflatable cuff; 31. a second conduit; 4. a crossover sub; 5. an inflatable balloon; 51. a balloon catheter; 511. a balloon channel; 6. a main air pipe; 7. a bronchus; 8. a camera device; 9. an illumination device; 10. a single-cavity tube movable cover; 101. a cover body; 102. and (7) capping.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings in order to more clearly understand the objects, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms will be used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be construed as words of convenience and should not be construed as limiting terms. The terms "distal" and "proximal" in the context of "distal", "distal 13", "proximal" and "proximal 14" refer to positions relative to an operator of a single lumen bronchial catheter, i.e., "proximal" near the operator and "distal" away from the operator, and the term "external device" in the context of the present disclosure may be a device that combines any one or more of the functions of inflation, aspiration, water injection, water withdrawal, liquid injection, and liquid withdrawal, such as a suction blower, a blower, and the like.

The single lumen bronchial catheter of the present invention is described hereinafter with reference to the accompanying drawings, as shown in fig. 1 and 2, the assembly comprising: an elongate tubular body 1, a first inflatable cuff 2, a second inflatable cuff 3, a lateral opening 11, and an opening and closing member, wherein the elongate tubular body 1 defines a ventilation lumen 12 therein, and wherein the elongate tubular body 1 has a distal end 13 and a proximal end 14, the distal end 13 being inserted into a bronchus 6 of a patient, the proximal end 14 being disposed proximate to an operator, the proximal end 14 being adapted to receive an external ventilator, the first inflatable cuff 2 being disposed around the elongate tubular body 1 distal to the proximal end 14, the second inflatable cuff 3 being disposed around the elongate tubular body 1 distal to the first inflatable cuff 2, and the second inflatable cuff 3 being spaced apart from the first inflatable cuff 2, wherein the lateral opening 11 is disposed in a tubular wall 19 of the elongate tubular body 1 and between the first inflatable cuff 2 and the second inflatable cuff 3, wherein the opening and closing member is disposed within the ventilation lumen 12 of the elongate tubular body 1 and distal to the lateral opening 11, the shutter can open or close the vent lumen 12.

Because the present case includes: the first inflatable cuff 2, the second inflatable cuff 3, the switch element and the lateral opening 11 between the first inflatable cuff 2 and the second inflatable cuff 3 are not beneficial to operation because the affected lung can not ventilate in the operation process in the actual operation process, otherwise the lung is inflated and is not beneficial to operation, therefore, when the affected lung is operated, the first inflatable cuff can be arranged in the main trachea 6 and blocks the main trachea 6 after being inflated, meanwhile, the second inflatable cuff 3 and the part of the slender tubular body 1 provided with the switch element can be arranged in the bronchus 7 at the affected lung side, the second inflatable cuff 3 blocks the bronchus 6 at the affected lung side after being inflated, the switch element closes the ventilation cavity 12, the lateral opening 11 is aligned with the healthy side lung, anesthesia gas or oxygen is injected into the slender tubular body 1 at the moment, because the affected side lung is blocked by the second cuff 3 and the switch element, anesthetic gas or oxygen can only enter healthy lung, thereby can realize the purpose of lung isolation and single lung ventilation, and also can prevent the filth in the sick lung side from flowing back to healthy lung side in the operation process after the channel of sick lung side blocks up, of course, after the operation is finished, or before the operation is carried out, because both lung of both sides need to ventilate, then can open the switch, the patient's left and right sides lung can all ventilate at this moment, therefore can be applicable to left lung and right lung simultaneously and use the pipe. Therefore, when the patient needs mechanical ventilation after the operation, the elongated tubular body 1 only needs to be pulled out a little, so that the distal end 13 of the elongated tubular body 1 is positioned in the main trachea 6, and the patient does not need to replace the tracheal catheter, thereby reducing the pain of the patient. When the double-cavity bronchial catheter is adopted, the patient feels uncomfortable because the double-cavity bronchial catheter is thick and hard, and the patient has to replace a common trachea to ventilate after the operation is finished, so that great pain is brought to the patient.

In summary, since the single-lumen bronchial catheter can also achieve the purposes of lung isolation, single-side ventilation and bilateral ventilation, the single-lumen bronchial catheter can also achieve the function of a dual-lumen bronchial catheter, and compared with the dual-lumen bronchial catheter, the single-lumen bronchial catheter has no two lumens, so that the outer diameter of the whole trachea can be reduced, the single-lumen bronchial catheter is easy to insert into the airway of a patient, the damage to the airway of the patient can be reduced, the outer diameter is small, and the single-lumen bronchial catheter can also be suitable for children.

In addition, specifically, in some embodiments, the switch member is an inflatable balloon 5 disposed in the ventilation cavity 12, and the inflatable balloon 5 can block the ventilation channel 12 after being inflated, and of course, in some embodiments, the switch member may also be an electric switch valve, a pneumatic switch valve or a hydraulic switch valve, an electric wire of the electric switch valve, and a control tube of the pneumatic switch valve and the hydraulic switch valve may be embedded in the tube wall 19 of the elongated tubular body 1, so that electric leakage of the electric wire can be avoided, and of course, the electric wire may also be wrapped in an insulating material and then attached to the inner side of the tube wall of the elongated tubular body 1, and the control tube may also be attached to the inner side of the tube wall of the elongated tubular body 1.

Specifically, as shown in fig. 1 and 2, the first inflatable cuff 2 and the second inflatable cuff 3 are both made of medical rubber material, such as medical silicon rubber, which has good ductility, in practical cases, the elongated tubular body 1 penetrates through the first inflatable cuff 2 and the second inflatable cuff 3, the first inflatable cuff 2 and the second inflatable cuff 3 are tightly wrapped outside the elongated tubular body 1, no air leakage occurs between the first inflatable cuff 2 and the second inflatable cuff 3 and the elongated tubular body 1, and the single-lumen bronchial catheter further includes: a first conduit 21 communicating with the first inflatable cuff 2, a second conduit 31 communicating with the second inflatable cuff 3, the first conduit 21 and the second conduit 31 being externally connectable to external devices, such as external devices which may be inflation and deflation devices, either to inflate the first inflatable cuff 2 and the second inflatable cuff 3 through the first conduit 21 and the second conduit 31, respectively, or to deflate the first inflatable cuff 2 and the second inflatable cuff 3 through the first conduit 21 and the second conduit 31, respectively, although in practice the first conduit 21 and the second conduit 31 may also be externally connected to other inflation devices, such as water pumping or water injection devices, to fill or pump water into the first inflatable cuff 2 and the second inflatable cuff 3 through the first conduit 21 and the second conduit 31, and when the first inflatable cuff 2 and the second inflatable cuff 3 are inflated, the first inflatable cuff 2 bears against the main trachea 6 and the second inflatable cuff 3 bears against the bronchus 7, thereby securing the elongate tubular body 1 within the patient, and, upon inflation of the first and second inflatable cuffs 2, 3, the first inflatable cuff 2 occludes the main trachea 6 and the second inflatable cuff 3 occludes the bronchus 7 in which it is located.

In addition, in some embodiments, in order to fix the inflatable balloon 5, the outer surface of the inflatable balloon 5 is partially fixedly connected to the inner wall of the elongated tubular body 1, so that the inflatable balloon 5 does not shift arbitrarily, the inflatable balloon 5 may also be made of a material with good ductility, such as medical rubber, for example, medical silicon rubber, and the single-lumen bronchial catheter further includes: the balloon catheter 51 is communicated with the inflatable balloon 5, the balloon catheter 51 is used for being connected with an external device, gas or water can be injected into the balloon catheter 51 through the external device, the inflatable balloon 5 is inflated, the pipeline is blocked at the moment, meanwhile, the balloon catheter 51 can be further externally connected with the external device, so that the inflatable balloon 5 is not in an inflated state any more, and the pipeline is opened at the moment.

Specifically, as shown in fig. 3, the balloon catheter 51 includes: a balloon channel 511 disposed in the wall 19 of the elongated tubular body 1, and an external connection pipe section connected to the balloon channel 511, wherein during the forming process of the elongated tubular body 1, an elongated hollow pipe is disposed in the middle of the wall 19 of the elongated tubular body 1, the hollow pipe is the balloon channel 511, the external connection pipe section is connected to an external device, the external device may be an external fluid source or an external air suction and water pumping device, of course, in some embodiments, in order to avoid the inner wall of the elongated tubular body 1 being too thick as a whole, a portion of the inner wall of the elongated tubular body 1 protrudes inward, and the balloon channel 511 is disposed at the protruding portion.

Moreover, it should be noted that in some embodiments, the balloon catheter 51 may also be an elongated flexible catheter having a portion inserted within the elongated tubular body 1 and bonded to the inner wall of the elongated tubular body 1 for attachment to an inflatable cuff, and a portion extending outside of the elongated tubular body 1 for attachment to an external device.

In addition, as shown in fig. 2, in some embodiments, the lateral opening 11 is a closable opening, and in particular, the elongate tubular body 1 further comprises: a plugging sheet 15 and a driving device, wherein the plugging sheet 15 can move in a direction close to or far away from the lateral opening 11 to open or close the lateral opening 11, and the driving device is connected with the plugging sheet 15 and is used for driving the plugging sheet 15 to move in a direction close to or far away from the lateral opening 11.

In the actual operation process, the elongated tubular body 1 can be inserted into either one of a healthy or affected lung, as shown in fig. 1 and 2, since the first inflatable cuff 2 blocks the main airway 6 and the second inflatable cuff 3 blocks the bronchus 7, when the elongated tubular body 1 is connected to a respirator, the inflatable balloon 5 is not inflated, the lateral opening 11 is opened, both lungs are ventilated, when the inflatable balloon 5 is inflated, the lateral opening 11 is opened, the single lung toward which the lateral opening 11 faces is ventilated, when the lateral opening 11 is closed, and the inflatable balloon 5 is not inflated, the single lung toward which the inflatable balloon 5 faces is ventilated, thereby realizing further lung isolation.

Specifically, as shown in fig. 4 to 6, an accommodating area 17 communicating with the lateral opening 11 is provided on the tube wall 19, the blocking piece 15 is slidably disposed in the accommodating area 17 along a direction approaching to or departing from the lateral opening 11, so as to slide in the accommodating area 17 along the direction approaching to or departing from the lateral opening 11, in some embodiments, the accommodating area 17 may be disposed in the tube wall 19, in some embodiments, the accommodating area 17 may also be located on an inner wall or an outer wall of the tube wall 19, meanwhile, guide grooves 18 extending along a sliding direction of the blocking piece 15 are provided on two sides of the lateral opening 11 on the tube wall 19, and both the guide grooves 18 are communicated with the accommodating area 17, so as to guide the blocking piece 15 to slide in both the guide grooves 18.

As shown in fig. 4, when the accommodating area 17 is located in the tube wall 19, the guide grooves 18 are opened on the side walls at both sides of the lateral opening 11, in some embodiments, as shown in fig. 6, when the accommodating area 17 is located on the inner wall of the tube wall 19, the inner walls of the tube wall 19 at both sides of the lateral opening 11 are both protruded inwards to form two vertical limiting strips 1624, the two guide grooves 18 are respectively located on the two vertical limiting strips 1624, and of course, when the accommodating area 17 is located on the outer wall of the tube wall 19, the outer walls of the tube wall 19 at both sides of the lateral opening 11 are both protruded outwards to form two vertical limiting strips 1624.

In addition, specifically, as shown in fig. 4, the accommodating area 17 is located in the tube wall 19, the accommodating area 17 and the lateral opening 11 are arranged adjacent to each other in the longitudinal direction, the accommodating area 17 is located on the near side of the lateral opening 11, a closed inner cavity 1611 is arranged in the tube wall 19 of the elongated tubular body 1, the closed inner cavity 1611 is located on the near side of the accommodating area 17, and the driving device includes: the piston 1612, the connecting rod 1613 and the air inflation tube 1614, wherein the piston 1612 is arranged in the closed inner cavity 1611 and is slidably and hermetically connected with the cavity wall of the closed inner cavity 1611, one end of the connecting rod 1613 is connected with the blocking sheet 15, the other end of the connecting rod 1613 is connected with the piston 1612, the air inflation tube 1614 is communicated with the part, located on the near side of the piston 1612, of the closed inner cavity 1611, in the practical situation, the air inflation tube 1614 is externally connected with an air inflation device, the air inflation device is used for inflating the closed inner cavity 1611, the piston 1612 pushes the connecting rod 1613 and the blocking sheet 15 to move towards the far side, the blocking sheet 15 closes the lateral opening 11, the air inflation tube 1614 is externally connected with an air suction device, air in the cavity on the near side of the closed inner cavity 1611 is pumped out, the piston.

Of course, in some embodiments, as shown in fig. 5, the accommodating section 17 is longitudinally adjacent to the lateral opening 11, and the accommodating section 17 is located at a side of the lateral opening 11 facing the proximal end 14 of the elongated tubular body 1, the tubular wall 19 is provided with a control channel 1621 extending proximally from the accommodating section 17, the driving device is a control rod 1622, the control rod 1622 is slidably disposed in the control channel 1621, one end of the control rod 1622 is connected to the blocking piece 15, and the other end of the control rod extends out of the proximal end 14 of the control channel 1621. During actual manipulation, the user may hold control rod 1622 and push it toward distal end 13, with closure tab 15 closing lateral opening 11, and may also hold control rod 1622 and pull it toward proximal end 14, with closure tab 15 opening lateral opening 11.

Of course, in some embodiments, as shown in fig. 6, the control channel 1621 may not be disposed on the tubular wall 19 of the elongated tubular body 1, when the accommodating area 17 is located in the tubular wall 19, the control rod 1622 is disposed in the elongated tubular body 1, and several circular limiting rings 1623 are disposed on the tubular wall 19 in the elongated tubular body 1, wherein the circular limiting rings 1623 are longitudinally arranged, and the control rod 1622 is limited by the circular limiting rings 1623, so as to prevent the control rod 1622 from being inserted and deflected. When the accommodation region 17 is located outside the tubular wall 19 of the elongated tubular body 1, the control rod 1622 may also be disposed outside the elongated tubular body 1, and a hollow control tube may be disposed on the outer tubular wall 19 of the elongated tubular body 1, and the control rod 1622 may be slidably inserted into the control tube.

In some embodiments, as shown in fig. 7, the housing region 17 is circumferentially adjacent to the lateral opening 11, and the tubular wall 19 is provided with a manipulation channel 1631, wherein one end of the manipulation channel 1631 is communicated with the housing region 17 and the lateral opening 11, and the other end is communicated with the proximal end 14 of the elongated tubular body 1; the driving device is a control rod 1632, one end of the control rod 1632 is connected to the blocking piece 15, and the other end extends out of the proximal end 14 of the control channel 1631. During the actual operation, the user can hold the operating rod 1632 and push it in the circumferential direction towards the side opening 11, while the blocking piece 15 closes the side opening 11, and can also hold the operating rod 1632 and push it in the circumferential direction away from the side opening 11, while the blocking piece 15 opens the side opening 11.

Similarly, in some embodiments, as shown in fig. 8, the tubular wall 19 of the elongated tubular body 1 may not have the manipulation channel 1631, when the accommodation area 17 is located in the tubular wall 19, a lateral limiting bar 1634 is disposed on the inner side of the tubular wall 19, the lateral limiting sleeve is located below the blocking piece 15 and the lateral opening 11, a lateral slide 1635 is disposed on the lateral limiting bar 1634, the blocking piece 15 is slidably disposed in the lateral slide 1635, the manipulation rod 1632 is disposed in the elongated tubular body 1, and several flat limiting rings 1633 are disposed on the tubular wall 19 in the elongated tubular body 1, each flat limiting ring 1633 is arranged in the longitudinal direction, and the flat limiting ring 1633 is used to limit the manipulation rod 1632 to prevent the manipulation rod 1632 from sliding off. Specifically, as shown in the figure, the flat limiting rings 1633 are elongated and flat, and the operating rod 1632 can slide in each flat limiting ring 1633 along the length direction of each flat limiting ring 1633.

In addition, specifically, as shown in fig. 2, in some embodiments, the single-lumen bronchial catheter further comprises: set up camera device 8 on slender tubular body 1 distal end 13, this camera device 8 can be a waterproof miniature camera, this miniature camera accessible is wireless or wired to be connected with terminal equipment, when adopting wired mode, the electric wire can be buried underground in slender tubular body 1's pipe wall 19, certainly also can wrap up with insulating material, the subsides are established at the pipe wall inboardly, can realize visual bronchus intubate after the pipe sets up the camera, guide the intubate in real time, guarantee the position degree of accuracy, of course, single chamber bronchus pipe still includes: the illumination device 9 is arranged on the far end 13 of the slender tubular body 1, the illumination device 9 can adopt a waterproof illumination lamp, the illumination lamp and the camera can adopt a built-in micro battery for power supply, and of course, in practical situation, the camera and the illumination lamp can be integrated together to become a device.

In addition, specifically, in some embodiments, there are at least two lateral openings 11, and of course, when there are a plurality of lateral openings 11, there are a plurality of blocking sheets 15 and driving devices, and the lateral openings 11, the blocking sheets 15 and the driving devices are all in one-to-one correspondence, and the position of each lateral opening 11 is not limited, and may be arranged around the axis of the elongated tubular body, or may be arranged longitudinally on the elongated tubular body.

Specifically, in some embodiments, in order to facilitate the connection of the single-lumen bronchial catheter with the ventilator, as shown in fig. 1, the single-lumen bronchial catheter further includes: a transition joint 4 in communication with the proximal end 14 of the elongated tubular body 1, the transition joint 4 adapted to be coupled to an outlet of a ventilator, and of course, a single lumen tube flap 10 may be removably coupled to the transition joint 4, the single lumen tube flap being an at least three-way adapter, the single lumen tube flap 10 being adapted to be coupled to the transition joint 4 at one end and to an outlet of a different ventilator at another end, the single lumen tube flap 10 being adapted to be either plugged to the transition joint 4 or threadably coupled to the transition joint 4, as shown in fig. 1 and 9, and in some embodiments, the single lumen tube flap 10 comprises: the cover body 101 and the cap 102, the cover body 101 is a three-way pipeline, one port 1011 of the pipeline is connected with the adapter 4, the other port 1012 of the pipeline is connected with the respirator, the bronchofiberscope can be taken down from the third port 1013, the cap 102 is connected to the cover body 101 through a connecting rope, when the bronchofiberscope is not needed to be taken down, the cap 102 can be used for covering the third port 1013, so that dirt is prevented from entering the pipeline through the third port 1013, and after the single-cavity tube movable cover is adopted, the single-cavity bronchial catheter can be connected with the respirator and can also be used for taking other scopes such as the bronchofiberscope.

In addition, in some embodiments, the single-lumen bronchial tube is translucent, so that it is convenient to check whether the blocking piece 15 is blocked in place, and meanwhile, each of the control rod 1622 and the control rod 1632 in the present application may be a steel wire rod or a nickel-titanium alloy rod, or may be made of medical plastics. In addition, in some embodiments, the elongated tubular body 1 may have a thinner outer diameter in the portion inserted into the bronchial tube than in the portion inserted into the main airway.

In addition, the single-lumen bronchial catheter further comprises: an auxiliary catheter is arranged on the elongated tubular body 1, wherein one end opening of the auxiliary catheter is positioned at the side of the distal end 13 of the elongated tubular body 1, and the other end opening of the auxiliary catheter is positioned at the side of the proximal end 14 of the elongated tubular body 1. In practical situations, sputum or other secretions in the lung of the patient or blood pollution in the operation process can be sucked through the auxiliary catheter, and meanwhile, medicines can be injected into the body of the patient through the auxiliary catheter. Compared with the injection by adopting the slender tubular body, the auxiliary catheter is small, so that the unnecessary waste caused by the excessive adhesion of the medical gas on the catheter wall can be avoided, and the medicine can be accurately injected into the bronchus on two sides of the human body.

In some embodiments, the opening of the auxiliary conduit on the side of the distal end 13 of the elongate tubular body 1 may be at the distal end 13 of the elongate tubular body 1, or at the lateral opening 11, and of course may be distal to the lateral opening 11 and proximal to the second inflatable cuff 3. When the opening of the secondary catheter is distal to the lateral opening 11, and proximal to the second inflatable cuff 3, the blood that has accumulated above the second inflatable cuff 3 can be adsorbed.

In addition, the auxiliary catheter, the first catheter 21, the second catheter 31 and the inflation tube 1614 are substantially the same in structure as the balloon catheter 51, the configuration of any of the embodiments of the balloon catheter 51 can be used, with the primary differences between the first and second catheters and the balloon catheter being, when the balloon catheter 51 is positioned on the inner wall of the elongated tubular body 1, the first catheter 21 and the second catheter 31 are positioned on the outer wall of the elongated tubular body 1, the auxiliary catheter is mainly different from the balloon catheter in that the opening of the auxiliary catheter at the side of the distal end of the slender tubular body is opened towards the outside of the tube wall of the slender tubular body, so that the auxiliary catheter can suck sputum or other secretions out of the elongated tubular body conveniently, and thus, in order to avoid encumbrance, the structure and assembly relationship of the auxiliary catheter, the first catheter 21, the second catheter 31 and the inflation tube 1614 are not repeated here.

While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

Claims

1. A single lumen bronchial catheter, comprising:

a lateral opening disposed on a wall of the elongate tubular body between the first and second inflatable cuffs;

2. The single lumen bronchial catheter of claim 1, wherein the lateral opening is a closable opening.

3. The single lumen bronchial catheter of claim 2, wherein the elongate tubular body further comprises:

4. The single-lumen bronchial catheter of claim 3, wherein the tube wall is provided with a receiving area communicating with the lateral opening, and the blocking piece is slidably disposed in the receiving area along a direction approaching or departing from the lateral opening so as to slide in the receiving area in a direction approaching or departing from the lateral opening.

5. The single-lumen bronchial catheter of claim 4, wherein the tube wall is provided with guide grooves extending along the sliding direction of the plugging piece on both sides of the lateral opening, and both of the guide grooves communicate with the accommodating area to guide the plugging piece to slide in the two guide grooves.

6. The single lumen bronchial catheter of claim 1, wherein the switch is an inflatable balloon that, in an inflated state, occludes the vent lumen.

7. The single lumen bronchial catheter of claim 1, wherein the switch member is an on-off valve.

8. The single lumen bronchial catheter of claim 6, wherein the inflatable balloon is partially fixedly connected to an inner wall of the elongate tubular body.

9. The single-lumen bronchial catheter of claim 8, further comprising: a balloon catheter in communication with the inflatable balloon.

10. The single lumen bronchial catheter of claim 9, wherein the balloon catheter comprises: the balloon catheter comprises a balloon channel arranged in the wall of the elongated tubular body and an external pipe section communicated with the balloon channel.

11. The single-lumen bronchial catheter of claim 1, further comprising: a camera device and an illumination device removably disposed at a distal end of the elongate tubular body.

12. The single lumen bronchial catheter of claim 1, wherein the lateral openings are at least two.

13. The single lumen bronchial catheter of claim 4, wherein the receiving zone and the lateral opening are arranged longitudinally adjacent to each other with the receiving zone located proximal to the lateral opening, and wherein a closed lumen is provided in a wall of the elongated tubular body, the closed lumen located proximal to the receiving zone, the drive device comprising:

14. The single lumen bronchial catheter of claim 4, wherein the receiving zone and the lateral opening are longitudinally adjacently aligned, and the receiving zone is located on a side of the lateral opening facing the proximal end of the elongated tubular body;

15. The single lumen bronchial catheter of claim 4, wherein the containment zone is circumferentially adjacent to the lateral opening;

16. The single-lumen bronchial catheter of claim 1, further comprising: an adapter in communication with the proximal end of the elongate tubular body.

17. The single-lumen bronchial catheter of claim 16, further comprising: the single-cavity tube movable cover is detachably arranged on the adapter and is an at least three-way adapter.

18. The single-lumen bronchial catheter of claim 1, further comprising: an auxiliary catheter disposed on the elongated tubular body, the auxiliary catheter having an opening at one end thereof on the distal side of the elongated tubular body and an opening at the other end thereof on the proximal side of the elongated tubular body.

19. The single lumen bronchial catheter of claim 18, wherein the auxiliary catheter is located at an opening on a side of the distal end of the elongated tubular body, distal to the lateral opening, and proximal to the second inflatable cuff.