Hard bronchoscope sheath applied to multiple scenes

Abstract

The utility model relates to the technical field of in vitro diagnosis automation equipment, in particular to a hard bronchoscope sheath applied to multiple scenes. The hard bronchoscope sheath comprises a bronchoscope sheath main body lumen; the double-path ventilation input airway is arranged on the endoscope sheath main body lumen and comprises a ventilation input airway interface and two input airway pipelines which are independent from each other; and the two input airway pipelines are respectively communicated with the ventilation input airway interface. Free switching of an independent constant-frequency ventilation input function, an independent high-frequency ventilation input function and a constant-frequency and high-frequency superposition ventilation input function can be achieved through the two ventilation input air channels. According to the constant-frequency and high-frequency superimposed ventilation input, the advantages of superimposed ventilation can be played in the breathing and interventional therapy operation process, and retention of carbon dioxide can be effectively reduced through high-frequency and constant-frequency superimposed ventilation. The problems that in the prior art, a hard bronchoscope sheath is single in function and cannot meet medical requirements of different scenes are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hard bronchoscope equipment in respiration and interventional therapy operation, concretely relates to a hard bronchoscope sheath applied to multiple scenes. BACKGROUND

[0002] Hard bronchoscope is a kind of modern medical equipment, and the diagnosis and treatment of respiratory diseases are realized by inserting endoscope into human body. In order to realize the insertion of endoscope, the mirror sheath needs to be inserted into the respiratory tract of human body first so that the endoscope can be smoothly inserted, the distal end of the mirror sheath is fixed with a connector, and the endoscope can be inserted into the mirror sheath through the connector opening. The above-mentioned mirror sheath connector can protect the supraglottic airway structure and keep the airway unobstructed.

[0003] In the prior art, for example, the visual hard bronchoscope disclosed in the publication No. CN215227456U. The hard bronchoscope sheath has only two channels, namely an operation channel and a single-path ventilation input port. Specifically, it is a high-frequency respirator interface connected with a high-frequency respirator and an anesthetic respirator interface connected with an anesthetic respirator at the proximal end of the bronchoscope body. Because the hard bronchoscope sheath in the prior art has only two or three channels, the two channels usually include an operation channel and a single-path ventilation input port, and the three channels usually include an operation channel, a single-path ventilation input port and a bypass gas adjusting inlet. Therefore, the existing mirror sheath can only realize single-path normal frequency ventilation input or high-frequency ventilation input, and cannot realize normal frequency and high-frequency superimposed ventilation. If the medical workers in the field want to realize superimposed ventilation or freely control the function switching of normal frequency ventilation input and high-frequency ventilation input, they still need to match the adapter accessory. The above-mentioned adapter accessory not only causes the change of ventilation position and affects the effect of ventilation, but also increases the operation complexity of the equipment and the need for frequent replacement of accessories. In addition, in the prior art, the mirror sheaths on the market do not have a channel for airway monitoring, and cannot realize real-time monitoring of the pressure, end-tidal carbon dioxide concentration and airway oxygen concentration in the human airway. This leads to the problem of lack of functionality of the existing hard bronchoscope sheath in clinical use, which can only observe the real-time situation of the patient through the monitor or monitor through the tracheal intubation connected to the equipment.

[0004] Therefore, the technical personnel in the field urgently need a new hard bronchoscope sheath that can be applied to different scenes, can realize single normal frequency ventilation input, high-frequency ventilation input and normal frequency high-frequency superimposed ventilation input. At the same time, it can also realize the synchronous monitoring of airway pressure, end-tidal carbon dioxide concentration and airway oxygen concentration in the airway and other data monitoring work. It can also be connected with bypass gas as needed for auxiliary heating and humidification, or connected with anesthetic gas, etc. UTILITY MODEL CONTENT

[0005] Therefore, the technical problem to be solved by the utility model lies in how to solve the problem of single function of the hard bronchoscope sheath in the prior art, which cannot meet the medical needs in different scenarios.

[0006] The mirror sheath main cavity;

[0007] The double-path ventilation input airway is arranged on the mirror sheath main cavity and comprises a ventilation input airway interface and two independent input airway pipelines.

[0008] Optionally, the double-path output gas sampling airway is also arranged on the mirror sheath main cavity and comprises an output gas sampling airway interface and two independent output airway pipelines.

[0009] Optionally, the two input airway pipelines are connected to the mirror sheath main cavity and located at the proximal end of the mirror sheath main cavity close to the inlet.

[0010] The two output airway pipelines are connected to the mirror sheath main cavity and located at the distal end of the mirror sheath main cavity close to the outlet.

[0011] Optionally, the outer peripheral wall of the mirror sheath main cavity is provided with a normal frequency ventilation input port and a high frequency ventilation input port, which are connected to the normal frequency ventilation input pipeline and the high frequency ventilation input pipeline respectively.

[0012] The outer peripheral wall of the mirror sheath main cavity is provided with a gas analysis detection port and a gas pressure detection port, which are connected to the gas analysis sampling pipeline and the gas pressure sampling pipeline respectively.

[0013] Optionally, the connection angle between the normal frequency ventilation input pipeline and / or the high frequency ventilation input pipeline and the outer peripheral wall of the mirror sheath main cavity is an acute angle.

[0014] The connection angle between the gas analysis collection pipeline and / or the gas path pressure collection pipeline and the outer peripheral wall of the main lumen of the mirror sheath body is an acute angle. The connection between the two output gas collection airways, i.e., the gas analysis collection pipeline and the gas path pressure collection pipeline, and the main lumen of the mirror sheath body is an acute angle insertion. The gas input into the patient's body in the positive direction will not be discharged from the output gas collection airway, but only the gas exhaled from the human airway in the reverse direction is collected to obtain better and more accurate collection data.

[0015] Optionally, the constant frequency ventilation input pipeline is welded and fixed with the main lumen of the mirror sheath body, so that the constant frequency ventilation input pipeline is in communication with the constant frequency ventilation input port; and / or,

[0016] The high-frequency ventilation input pipeline is welded and fixed with the main lumen of the mirror sheath body, so that the high-frequency ventilation input pipeline is in communication with the high-frequency ventilation input port.

[0017] Optionally, the gas analysis collection pipeline is welded and fixed with the main lumen of the mirror sheath body, so that the gas analysis collection pipeline is in communication with the airway gas analysis detection port; and / or,

[0018] The gas path pressure collection pipeline is welded and fixed with the main lumen of the mirror sheath body, so that the gas path pressure collection pipeline is in communication with the airway pressure detection port.

[0019] Optionally, the hard tracheoscope sheath applied to multiple scenes further comprises:

[0020] The bypass gas interface is located on the side of the main lumen of the mirror sheath body and is in communication with the main lumen of the mirror sheath body; the bypass gas interface is used for connecting a humidifier or an anesthesia machine.

[0021] Optionally, the bypass gas interface is obliquely connected with the main lumen of the mirror sheath body, and the double-way ventilation input airway and the output gas collection airway are respectively located at two side positions of the bypass gas interface.

[0022] Optionally, the distal end position of the main lumen of the mirror sheath body close to the outlet is further provided with an opening hole for ventilating the contralateral lung during ventilation; and / or,

[0023] The main lumen of the mirror sheath body is a straight-through thin-walled tube with a thickness of 0.3 mm to 1.2 mm; the above straight-through thin-walled tube can be more easily inserted into the human airway and can be applied to people with smaller airways; and / or,

[0024] The distal end of the main lumen of the mirror sheath body is formed with an oblique opening; the oblique opening can be more easily expanded and inserted into the airway, and at the same time, the airway will not be damaged.

[0025] Optionally, the opening hole is a waist-shaped hole extending in the reverse direction along the length of the main lumen of the mirror sheath body.

[0026] The technical scheme of the utility model has the following advantages:

[0027] 1. The utility model provides a rigid bronchoscope sheath applied to multiple scenes, which comprises a sheath main body lumen, a double-path ventilation input airway is arranged on the sheath main body lumen and comprises a ventilation input airway interface and two independent input airway pipelines, the two input airway pipelines are connected to the ventilation input airway interface respectively to realize separate normal frequency ventilation input function, separate high frequency ventilation input function and normal frequency high frequency superimposed ventilation input function.

[0028] In the utility model, by setting two independent input airway pipelines on the sheath main body lumen, the single function of the rigid bronchoscope sheath in the prior art can be effectively solved, if medical workers want to realize superimposed ventilation or freely control the function switching of normal frequency ventilation input and high frequency ventilation input, an adapter accessory still needs to be matched. The above-mentioned adapter accessory not only causes the change of the ventilation position and further affects the ventilation effect, but also increases the operation complexity of the equipment, leading to the problem that the accessory needs to be frequently replaced. In the utility model, the above-mentioned double-path ventilation input airway can make medical workers freely switch the separate normal frequency ventilation input function, the separate high frequency ventilation input function and the normal frequency high frequency superimposed ventilation input function according to needs. Among them, through the normal frequency high frequency superimposed ventilation input, the advantages of superimposed ventilation can be played in the process of respiration and interventional therapy operation, and through the superimposed ventilation of high frequency and normal frequency, the retention of carbon dioxide can be effectively reduced.

[0029] 2. The utility model provides a rigid bronchoscope sheath applied to multiple scenes, still includes: output gas sampling airway, set up on the sheath main body lumen, output gas sampling airway is used for detecting the related data of output gas. The output gas sampling airway is double-path airway, and it includes output gas sampling airway interface and two independent output airway pipelines, and the output airway pipeline includes gas analysis collection pipeline and airway pressure collection pipeline.

[0030] In the utility model, the gas analysis collection pipeline and the airway pressure collection pipeline can monitor the airway pressure in the airway, the end-expiratory carbon dioxide concentration and the airway oxygen concentration and other data at the same time. In addition, for the respirator without monitoring function, it can also be connected to the related monitoring equipment or instrument to perform monitoring work.

[0031] 3. The utility model provides a rigid bronchoscope sheath applied to multiple scenes, two output airway pipelines are connected to the sheath main body lumen respectively and are located at the distal end position close to the outlet of the sheath main body lumen, and two input airway pipelines are connected to the sheath main body lumen respectively and are located at the proximal end position close to the inlet of the sheath main body lumen.

[0032] In the utility model, in solving the existing mirror sheath cannot be superimposed ventilation and the gas path is short of monitoring port, still, the position of mirror sheath is optimized in ventilation input and gas path monitoring, and the two output gas ducts are connected with gas path gas analysis detection port and gas path pressure detection port respectively.

[0033] 4. The rigid bronchoscope sheath for multiple scenes provided by the utility model, the connection angle between the normal frequency ventilation input pipeline and / or the high frequency ventilation input pipeline and the outer peripheral wall of the bronchoscope sheath main lumen is an acute angle.

[0034] The two input air ducts, i.e. the normal frequency ventilation input pipeline and the high frequency ventilation input pipeline, are connected to the bronchoscope sheath main lumen at a small-angle acute angle, so that the Venturi effect occurs to the gas in the input air duct, relevant data are obtained by fluid analysis, most of the gas is introduced to the distal end position of the bronchoscope sheath main lumen close to the outlet, and then is diffused in the patient's airway, so that the best superimposed ventilation effect is achieved.

[0035] In addition, the connection angle between the gas analysis collection pipeline and / or the gas path pressure collection pipeline and the outer peripheral wall of the bronchoscope sheath main lumen is an acute angle.

[0036] The two output gas collection air ducts, i.e. the gas analysis collection pipeline and the gas path pressure collection pipeline, are connected to the bronchoscope sheath main lumen at a small-angle acute angle, so that the gas input to the patient's body in the positive direction is not discharged from the output gas collection air duct, but only collects the gas exhaled from the human airway in the reverse direction, so that more accurate collection data are obtained.

[0037] The position and angle of the above-mentioned double-path ventilation input air duct can make the sprayed gas enter the human airway more deeply, so as to ensure the flow rate of the sprayed gas and make the human body better perform oxygenation. Meanwhile, the position and angle of the output gas collection air duct of the double-path air duct can more accurately collect and monitor the airway pressure, the end-tidal carbon dioxide concentration and the airway oxygen concentration and other data in the human airway.

[0038] 5. The rigid bronchoscope sheath for multiple scenes provided by the utility model further comprises: a bypass gas interface, which is located on the side of the bronchoscope sheath main lumen and is connected to the bronchoscope sheath main lumen; and the bypass gas interface is used for connecting a humidifier or an anesthesia machine.

[0039] The aforementioned bypass gas interface allows for the supply of heated and humidified gas, or external anesthetic gas, as needed. Furthermore, this design retains an operational channel for guiding and introducing optical endoscopes or surgical instruments. This channel avoids endotracheal intubation, reducing patient trauma, while ensuring intraoperative visibility and providing operational space for laser surgery and other procedures, making the surgical process safer. Attached Figure Description

[0040] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 A three-dimensional structural diagram of the rigid bronchoscope sheath provided by this utility model;

[0042] Figure 2 A front view of the rigid bronchoscope sheath provided by this utility model;

[0043] Figure 3 A side view of the rigid bronchoscope sheath with dual-channel airway provided by this utility model;

[0044] Figure 4 Side view of a rigid tracheoscope sheath with an output gas sampling channel provided by this utility model;

[0045] Figure 5 A schematic diagram showing the positions of the normal frequency ventilation inlet and the high frequency ventilation inlet on the main body cavity of the mirror sheath provided by this utility model;

[0046] Figure 6 A schematic diagram showing the placement of the airway gas analysis detection port and the airway pressure detection port on the main body cavity of the sheath provided by this utility model;

[0047] Figure 7 A schematic diagram of the airflow direction inside the rigid bronchoscope sheath provided by this utility model.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1 - mirror sheath body lumen; 2 - double path ventilation input airway; 3 - ventilation input airway interface; 4 - input airway pipeline; 5 - output gas collection airway; 6 - output airway interface; 7 - output airway pipeline; 8 - gas analysis collection pipeline; 9 - airway pressure collection pipeline; 10 - constant frequency ventilation input pipeline; 11 - high frequency ventilation input pipeline; 12 - airway gas analysis detection port; 13 - airway pressure detection port; 14 - constant frequency ventilation input port; 15 - high frequency ventilation input port; 16 - bypass gas interface; 17 - opening; 18 - bevel. DETAILED DESCRIPTION

[0050] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0051] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] Embodiment 1

[0053] Referring to Figure 1 , Figure 2 and Figure 7 , Figure 1 shows a schematic diagram of the three-dimensional structure of the rigid bronchoscope sheath in the embodiment of the present application. Figure 2 shows a front view of the rigid bronchoscope sheath in the embodiment of the present application. Figure 7 shows a schematic diagram of the flow direction of the airway in the rigid bronchoscope sheath in the embodiment of the present application.

[0054] A rigid bronchoscope sheath for multiple scenarios is provided in this embodiment, comprising:

[0055] The mirror sheath body lumen 1 is a straight pipe structure;

[0056] A dual-path ventilation input airway 2 is provided on the main body cavity 1 of the sheath, which includes: a ventilation input airway interface 3 and two independent input airway lines 4; the two input airway lines 4 are respectively connected to the ventilation input airway interface 3 to realize a separate normal frequency ventilation input function, a separate high frequency ventilation input function, and a normal frequency and high frequency superimposed ventilation input function.

[0057] Specifically, such as Figure 3 The side view of the rigid bronchoscope sheath shown, and as shown Figure 5 The diagram shows the locations of the normal frequency ventilation inlet and the high frequency ventilation inlet. The two aforementioned inlet airway lines 4 are respectively connected to the main body cavity 1 of the sheath and are located near the proximal end of the main body cavity 1 near the inlet. Furthermore, the outer peripheral wall of the main body cavity 1 of the sheath has a normal frequency ventilation inlet 14 and a high frequency ventilation inlet 15, respectively, which are connected to the normal frequency ventilation inlet line 10 and the high frequency ventilation inlet line 11.

[0058] Understandably, the above embodiments do not specifically limit the shape and structure of the main body cavity 1 of the mirror sheath. In an optional embodiment, the shape of the main body cavity 1 of the mirror sheath can be various, such as: a straight tube, a curved tube, or a combination of straight and curved tubes.

[0059] Understandably, the above embodiments do not specifically limit the shape and structure of the main cavity 1 of the sheath. In an optional embodiment, the size of the main cavity 1 of the sheath can have various specifications, various thicknesses, varying diameters or cross-sections, and various lengths to suit various groups of people.

[0060] Understandably, the above embodiments do not specifically limit the connection structure of the sheath body cavity 1. In an optional embodiment, the sheath body cavity 1 can be integral or separate, detachable, and have replaceable interfaces.

[0061] In some more specific embodiments, such as Figure 1 As shown, the rigid bronchoscope sheath applicable to multiple scenarios also includes: an output gas sampling channel 5, which is disposed on the main body cavity 1 of the sheath. The output gas sampling channel 5 is used to detect relevant data of the output gas.

[0062] Specifically, such as Figure 4 The side view of the rigid bronchoscope sheath shown, and as shown Figure 6 The diagram shows the location of the gas analysis and pressure detection ports in the airway. The output gas sampling channel 5 is a dual-channel channel, including: an output gas sampling channel interface 6, and two independent output gas channel lines 7;

[0063] The output airway pipeline 7 comprises: a gas analysis collection pipeline 8 and an airway pressure collection pipeline 9. The gas analysis collection pipeline 8 is used for detecting end-tidal carbon dioxide concentration and airway oxygen concentration data, and the gas analysis collection pipeline 8 is used for monitoring the airway pressure in the output airway pipeline 7.

[0064] Specifically, the two output airway pipelines 7 are respectively connected to the mirror sheath body lumen 1 and located at the distal end of the mirror sheath body lumen 1 near the outlet. Moreover, the outer peripheral wall of the mirror sheath body lumen 1 is respectively provided with an airway gas analysis detection port 12 and an airway pressure detection port 13 which are connected to the gas analysis collection pipeline 8 and the airway pressure collection pipeline 9.

[0065] In some more specific embodiments, as shown in Figure 1 and Figure 2 The hard bronchoscope sheath for multiple scenes further comprises: a bypass gas interface 16 which is located on the side of the mirror sheath body lumen 1 and connected to the mirror sheath body lumen 1; and the bypass gas interface 16 is used for connecting a humidifier or an anesthesia machine.

[0066] Specifically, the bypass gas interface 16 is connected to the mirror sheath body lumen 1 at an angle, and the double-way ventilation input airway 2 and the output gas collection airway 5 are respectively located at two sides of the bypass gas interface 16.

[0067] In some more specific embodiments, as shown in Figure 2 The connection angle between the constant frequency ventilation input pipeline 10 and the high frequency ventilation input pipeline 11 and the outer peripheral wall of the mirror sheath body lumen 1 is an acute angle. The two input airway pipelines 4, i.e., the constant frequency ventilation input pipeline 10 and the high frequency ventilation input pipeline 11, are connected to the mirror sheath body lumen 1 at a small angle, and the gas in the input airway pipeline 10 and the high frequency ventilation input pipeline 11 is inserted at a small angle, so that the gas in the input airway pipeline 10 and the high frequency ventilation input pipeline 11 has a Venturi effect, and the relevant data is obtained by fluid analysis, so that most of the gas is introduced to the distal end of the mirror sheath body lumen 1 near the outlet, and then diffused in the airway of the patient, thereby achieving the effect of optimal superimposed ventilation.

[0068] It can be understood that the connection angle between the constant frequency ventilation input pipeline 10 and the high frequency ventilation input pipeline 11 and the outer peripheral wall of the mirror sheath body lumen 1 is not specifically limited, and in an optional embodiment, the connection angle between the constant frequency ventilation input pipeline 10 and the high frequency ventilation input pipeline 11 and the outer peripheral wall of the mirror sheath body lumen 1 can also be an angle other than an acute angle.

[0069] In some more specific embodiments, as shown in Figure 2As shown, the connection angle between the gas analysis collection pipeline 8 and the gas path pressure collection pipeline 9 and the outer peripheral wall of the sheath main lumen 1 is an acute angle. The two output gas collection airways 5, i.e. the gas analysis collection pipeline 8 and the gas path pressure collection pipeline 9, are inserted at a small angle of acute angle with the sheath main lumen 1. The gas input into the patient's body in a forward direction will not be discharged from the output gas collection airway 5, but only the gas exhaled from the human airway in a reverse direction is collected to obtain better and more accurate collection data.

[0070] It can be understood that the above embodiments do not specifically limit the connection angle between the gas analysis collection pipeline 8 and the gas path pressure collection pipeline 9 and the outer peripheral wall of the sheath main lumen 1. In an alternative embodiment, the connection angle between the gas analysis collection pipeline 8 and the gas path pressure collection pipeline 9 and the outer peripheral wall of the sheath main lumen 1 can also be other angles in addition to an acute angle.

[0071] In some more specific embodiments, as shown in Figure 2 The gas analysis collection pipeline 8 is welded and fixed with the sheath main lumen 1, so that the gas analysis collection pipeline 8 is in communication with the airway gas analysis detection port 12. The gas path pressure collection pipeline 9 is welded and fixed with the sheath main lumen 1, so that the gas path pressure collection pipeline 9 is in communication with the airway pressure detection port 13. The constant frequency ventilation input pipeline 10 is welded and fixed with the sheath main lumen 1, so that the constant frequency ventilation input pipeline 10 is in communication with the constant frequency ventilation input port 14. The high frequency ventilation input pipeline 11 is welded and fixed with the sheath main lumen 1, so that the high frequency ventilation input pipeline 11 is in communication with the high frequency ventilation input port 15.

[0072] It can be understood that the above embodiments do not specifically limit the connection and fixing method of the gas analysis collection pipeline 8, the gas path pressure collection pipeline 9, the constant frequency ventilation input pipeline 10 and the high frequency ventilation input pipeline 11 with the sheath main lumen 1. In an alternative embodiment, the gas analysis collection pipeline 8, the gas path pressure collection pipeline 9, the constant frequency ventilation input pipeline 10 and the high frequency ventilation input pipeline 11 can also be fixed and connected by bonding, clamping, one-piece molding and the like.

[0073] In some more specific embodiments, as shown in Figure 2 The sheath main lumen 1 is provided with an opening 17 for ventilation of the contralateral lung during ventilation at the distal end position close to the outlet. The opening 17 is a waist-shaped hole extending in the reverse direction along the length of the sheath main lumen 1.

[0074] It can be understood that the above embodiments do not specifically limit the specific shape of the opening 17. In an alternative embodiment, the opening 17 can also be a round hole or other shaped hole.

[0075] In some more specific embodiments, as shown in Figure 2 The distal end of the lumen 1 of the sheath body is formed with a bevel 18; through the bevel 18, the airway can be more easily expanded and probed into the inside, and meanwhile, the airway is not damaged.

[0076] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A rigid bronchoscope sheath applicable to multiple scenarios, characterized in that, include: The main lumen of the mirror sheath (1); A dual-path ventilation input airway (2) is provided on the main cavity (1) of the sheath, which includes: a ventilation input airway interface (3) and two independent input airway pipelines (4); the two input airway pipelines (4) are respectively connected to the ventilation input airway interface (3) to realize a separate normal frequency ventilation input function, a separate high frequency ventilation input function, and a normal frequency and high frequency superimposed ventilation input function.

2. The rigid bronchoscope sheath for multiple scenarios according to claim 1, characterized in that, Also includes: An output gas sampling channel (5) is provided on the main body cavity (1) of the mirror sheath. The output gas sampling channel (5) is used to detect relevant data of the output gas. The output gas collection channel (5) is a dual-channel channel, including: an output gas collection channel interface (6) and two independent output gas channel pipelines (7); The output gas pipeline (7) includes: a gas analysis and acquisition pipeline (8) and a gas pressure acquisition pipeline (9).

3. The rigid bronchoscope sheath for multiple scenarios according to claim 2, characterized in that, The two output air passages (7) are respectively connected to the main cavity (1) of the sheath and are located at the far end of the main cavity (1) of the sheath near the outlet; The two input airway lines (4) are respectively connected to the main cavity of the sheath (1) and are located at the proximal end of the main cavity of the sheath (1) near the inlet.

4. The rigid bronchoscope sheath for multiple scenarios according to claim 3, characterized in that, On the outer peripheral wall of the main cavity (1) of the mirror sheath, there are respectively a gas analysis detection port (12) and a gas pressure detection port (13) that are connected to the gas analysis and collection pipeline (8) and the gas pressure collection pipeline (9); The outer peripheral wall of the main cavity (1) of the sheath is provided with a normal frequency ventilation inlet (14) and a high frequency ventilation inlet (15) respectively connected to the normal frequency ventilation inlet pipe (10) and the high frequency ventilation inlet pipe (11).

5. The rigid bronchoscope sheath for multiple scenarios according to claim 4, characterized in that, The connection angle between the normal frequency ventilation input pipe (10) and / or the high frequency ventilation input pipe (11) and the outer peripheral wall of the sheath body cavity (1) is an acute angle; and / or, The connection angle between the gas analysis and acquisition pipeline (8) and / or the gas pressure acquisition pipeline (9) and the outer peripheral wall of the sheath body cavity (1) is an acute angle.

6. The rigid bronchoscope sheath for multiple scenarios according to claim 4, characterized in that, The gas analysis and collection pipeline (8) is welded and fixed to the main cavity (1) of the mirror sheath, so that the gas analysis and collection pipeline (8) is connected to the gas analysis and detection port (12) of the airway; and / or, The air pressure acquisition pipe (9) is welded and fixed to the main cavity (1) of the mirror sheath, so that the air pressure acquisition pipe (9) is connected to the airway pressure detection port (13); and / or, The normal frequency ventilation input pipe (10) is welded and fixed to the main cavity (1) of the mirror sheath, so that the normal frequency ventilation input pipe (10) is connected to the normal frequency ventilation input port (14); and / or, The high-frequency ventilation input pipe (11) is welded and fixed to the main cavity (1) of the mirror sheath, so that the high-frequency ventilation input pipe (11) is connected to the high-frequency ventilation input port (15).

7. The rigid bronchoscope sheath for multiple scenarios according to any one of claims 2 to 6, characterized in that, Also includes: Bypass gas interface (16) is located on the side of the main lumen (1) of the sheath and is connected to the main lumen (1); the bypass gas interface (16) is used to connect to a humidifier or anesthesia machine.

8. The rigid bronchoscope sheath for multiple scenarios according to claim 7, characterized in that, The bypass gas interface (16) is obliquely connected to the main cavity (1) of the mirror sheath, and the dual-path gas input channel (2) and the output gas sampling channel (5) are located on both sides of the bypass gas interface (16).

9. The rigid bronchoscope sheath for multiple scenarios according to any one of claims 1 to 6, characterized in that, The distal end of the main lumen (1) of the endoscope sheath near the outlet is also provided with an opening (17) for ventilation of the lateral lung during ventilation; and / or, The sheath body lumen (1) is a straight, thin-walled tube with a thickness of 0.3 mm to 1.2 mm; and / or, The distal end of the main cavity (1) of the sheath has an oblique opening (18).

10. The rigid bronchoscope sheath for multiple scenarios according to claim 9, characterized in that, The opening (17) is a waist-shaped hole that extends in the opposite direction to the length of the main cavity (1) of the sheath.

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