CN213129582U

CN213129582U - Collecting tube for gas in alveolus pulmonale

Info

Publication number: CN213129582U
Application number: CN202020851535.0U
Authority: CN
Inventors: 李澎
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-05-07
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses an alveolus inner gas collecting tube, which comprises a collecting tube body and a saccule sleeved at the front end of the collecting tube body; a first channel, a second channel and a third channel are arranged in the collection tube body along the extension direction of the collection tube body, and a balloon air inlet, an air collection port and an air injection-suction port are arranged at the rear part of the collection tube body; the balloon is hermetically communicated with a balloon air inlet through a first channel, the second channel is used for communicating the alveolus with an air collecting port, the third channel is used for communicating the alveolus with an air injection-suction port, the air collecting port is operatively connected with an air collecting device, and the air injection-suction port is operatively connected with a repeated air injection-suction device. By arranging the gas acquisition port and the gas injection-suction port, the unbalance of gas exchange in the alveolus caused by gas acquisition in the alveolus is avoided, and the test accuracy is influenced.

Description

Collecting tube for gas in alveolus pulmonale

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to interior gas of alveolus gathers pipe.

Background

The alveoli are the main sites of pulmonary gas exchange and also the functional units of the lungs. After the gas inhaled into the alveoli enters the blood, the venous blood becomes oxygenated-rich arterial blood and is transported to the body through the blood circulation. Carbon dioxide in blood in capillary vessels around the alveoli can permeate through the capillary walls and alveolar walls to enter the alveoli and is discharged out of the body through expiration. The analysis of the alveolar gas composition is of great significance to the diagnosis and monitoring of respiratory diseases, such as the determination of the exhaled nitric oxide, which is produced by airway cells and the concentration of which is highly correlated with the number of inflammatory cells and is used as an airway inflammation biomarker; further, for example, measurement of alveolar ventilation can be used to determine an increase or decrease in pulmonary ventilation or physiologic dead space in response to an increase or decrease in effective ventilation. In addition, analysis of alveolar gas composition is also of great significance for the diagnosis and treatment of alveolar pleural fistula. However, in the prior art, the collection mode of alveolar gas, such as collection of expired gas, closed thoracic drainage method and the like, has large errors, and particularly the latter is easy to have false positive results.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an alveolus collection pipe with induction port, gas collection mouth and gas injection-induction port, the device can stretch into internally with the help of bronchoscope working hole, and then draws forth and gathers the gas in the alveolus, and in the collection process, the gas exchange in the alveolus is in balanced state, does benefit to the test accuracy.

In order to realize the purpose, the utility model discloses a technical scheme is: an intra-alveolar gas collecting tube comprises a collecting tube body and a balloon sleeved at the front end of the collecting tube body; a first channel, a second channel and a third channel are arranged in the collection tube body along the extension direction of the collection tube body, and a balloon air inlet, an air collection port and an air injection-suction port are arranged at the rear part of the collection tube body; the balloon is hermetically communicated with a balloon air inlet through a first channel, the second channel is used for communicating the alveolus with an air collecting port, the third channel is used for communicating the alveolus with an air injection-suction port, the air collecting port is operatively connected with an air collecting device, and the air injection-suction port is operatively connected with a repeated air injection-suction device.

Furthermore, the collecting tube body comprises an outer tube, an inner tube which is arranged in the outer tube in a penetrating way along the extension direction of the outer tube, and the rear part of the inner tube extends backwards and extends out of the rear end of the outer tube; the first channel is formed between the outer tube and the inner tube, a through hole for hermetically communicating the balloon with the first channel is formed in the tube wall of the outer tube at the position matched with the balloon, and the balloon air inlet is formed in the rear part of the outer tube; the inner tube forms a second channel and a third channel, and the gas collection port and the gas injection-suction port are provided at the rear of the inner tube that extends out through the rear end of the outer tube.

Furthermore, the front end of the outer tube is provided with a plug to avoid internal pollution, the inner tube is arranged in the outer tube along the axial slidable direction of the outer tube, and the plug at the front end of the outer tube can be punctured when the inner tube slides forwards, so that the front end of the outer tube is in a smooth state.

Further, the collecting tube body comprises an outer tube, a first inner tube, a second inner tube and a third inner tube, wherein the first inner tube, the second inner tube and the third inner tube are arranged in the outer tube in a penetrating mode along the extension direction of the outer tube; the first inner pipe forms the first channel, the front end of the first inner pipe is communicated with the interior of the balloon through the through hole, and the rear end of the first inner pipe extends backwards, extends out of the first mounting hole and is used as the balloon air inlet; the second inner pipe forms the second channel, the front end of the second inner pipe extends forwards at least to the front end of the outer pipe, and the rear end of the second inner pipe extends backwards and extends out of the second mounting port to be used as the gas collecting port; the third inner tube forms the third channel, the front end of the third inner tube extends forwards at least to the front end of the outer tube, and the rear end of the third inner tube extends backwards and extends out of the third mounting port to be used as the gas injection-suction port.

Furthermore, the collection tube body is an injection molding integrated piece, and the first channel, the second channel and the third channel are formed inside the collection tube body and are independent of each other.

Compared with the prior art, the utility model discloses the technological effect who gains does: by arranging the gas acquisition port and the gas injection-suction port, the unbalance of gas exchange in the alveolus caused by gas acquisition in the alveolus is avoided, and the test accuracy is influenced.

Drawings

Fig. 1 is a schematic structural diagram of an alveolar collection tube according to an embodiment of the present invention.

Fig. 2 is a schematic, partially cross-sectional view of an alveolar collection tube in an embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a point a in fig. 2.

Fig. 4 is a schematic view of the internal structure of an alveolar collection tube according to another embodiment of the present invention.

Fig. 5 is an enlarged schematic view of B in fig. 4.

The reference numbers in the figures are: 1. the air sac comprises a balloon, 2, a first channel, 3, a second channel, 4, a third channel, 5, a balloon air inlet, 6, an air collecting port, 7, an air injection-suction port, 8, an outer tube, 801, a plug, 9, an inner tube, 10, a through hole, 11, an air collecting device and 12, an air sac.

Detailed Description

The utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Referring to fig. 1, an intra-alveolar gas collection tube comprises a collection tube body and a balloon 1 sleeved at the front end of the collection tube body; a first channel 2, a second channel 3 and a third channel 4 are arranged in the collection tube body along the extension direction of the collection tube body, and a balloon air inlet 5, an air collection port 6 and an air injection-suction port 7 are arranged at the rear part of the collection tube body; the balloon 1 is hermetically communicated with a balloon air inlet 5 through a first channel 2, a second channel 3 is used for communicating an alveolus with an air collecting port 6, a third channel 4 is used for communicating the alveolus with an air injection-suction port 7, the air collecting port 6 is operatively connected with an air collecting device, and the air injection-suction port 7 is operatively connected with a repeated air injection-suction device.

The above-described generic structure is illustrated below by way of specific embodiments:

referring to fig. 2 and 3, which are one embodiment of the collecting tube for collecting gas in alveolar space according to the present invention, specifically, the collecting tube body includes an outer tube 8, an inner tube 9 penetrating the outer tube 8 along the extending direction of the outer tube 8, both the outer tube 8 and the inner tube 9 are flexible tubes, and the rear portion of the inner tube 9 extends backward and protrudes from the rear end of the outer tube 8; the first channel 2 is formed between the outer tube 8 and the inner tube 9, a through hole 10 for hermetically communicating the balloon 1 with the first channel 2 is formed in the tube wall of the outer tube 8 at the position matched with the balloon 1, and the balloon air inlet 5 is arranged at the rear part of the outer tube 8; the inner tube 9 forms the second passage 3 and the third passage 4, and the gas collecting port 6 and the gas injection-suction port 7 are provided at the rear of the inner tube 9 that protrudes through the rear end of the outer tube 8.

The front end of the outer tube 8 is provided with a plug 801, so that before use, the inside cleanliness of the gas collection tube in the alveolus is guaranteed, the inner tube 9 can slide back and forth along the axial direction of the outer tube 8, the inner tube 9 can be arranged in the outer tube 8 along the axial direction of the outer tube 8 in a sliding manner, and when the inner tube 9 slides forwards, the plug 801 at the front end of the outer tube 8 can be punctured, and the front end of the outer tube 8 is in a smooth state.

When the device is used, the gas collecting tube in the alveolus extends into the device through a working pore canal of a bronchoscope, the saccule 1 sleeved at the front end of the gas collecting tube in the alveolus is embedded into a target bronchus, the gas collecting port is provided with a gas suction device (which can be an injector), and the gas injection-suction port 7 is provided with the injector. Then the air is inflated through the air inlet of the saccule, so that the saccule is expanded and seals a target bronchus, then the inner tube 9 is pushed forwards to puncture the seal at the front end of the outer tube, so that the outer tube is in a smooth state, then the air in the alveolus is collected through the air suction device, and meanwhile, the air is repeatedly injected and sucked through the injector at the air injection-suction port 7 to exchange with the air in the alveolus and maintain balance. The collected gas is injected into an analyzer for quantitative measurement to obtain the gas component in the alveolus.

Referring to fig. 4 and 5, another embodiment of the gas collection tube in the alveolus of the present invention is shown, specifically, the collection tube body includes an outer tube 8, and a first inner tube, a second inner tube and a third inner tube penetrating the outer tube 8 along the extending direction of the outer tube 8, and the outer tube 8, the first inner tube, the second inner tube and the third inner tube are hoses. The balloon 1 is sleeved on the front part of the outer tube 8, a through hole 10 is formed in the tube wall of the outer tube 8 at the position matched with the balloon 1, and a first mounting opening, a second mounting opening and a third mounting opening are formed in the rear part of the outer tube 8; the first inner tube forms the first channel 2, the front end of the first inner tube is communicated with the interior of the balloon 1 through a through hole 10, the rear end of the first inner tube extends backwards and extends out through a first mounting port to be used as the balloon air inlet 5; the second inner pipe forms the second channel 3, the front end of the second inner pipe extends forwards at least to the front end of the outer pipe 8, the rear end of the second inner pipe extends backwards and extends out through the second mounting port to be used as the gas collecting port 6; the third inner tube forms the third channel 4, and the front end of the third inner tube extends at least forwards to the front end of the outer tube 8, and the rear end of the third inner tube extends backwards and extends out through the third mounting port to be used as the gas injection-suction port 7.

When the device is used, the gas collecting tube in the alveolus extends into the device through a working pore canal of a bronchoscope, the saccule 1 sleeved at the front end of the gas collecting tube in the alveolus is embedded into a target bronchus, a gas collecting device (which can be an injector) is arranged at a gas collecting port, and the injector is arranged at a gas injection-suction port 7. Then the air is inflated through the air inlet of the saccule, so that the saccule is expanded and seals a target bronchus, then the air in the alveolus is collected through the air suction device, and meanwhile, the air is repeatedly injected and sucked through the injector at the air injection-suction port 7 to exchange with the air in the alveolus and maintain the balance. The collected gas is injected into an analyzer for quantitative measurement to obtain the gas component in the alveolus.

In addition to the two embodiments, the collecting tube for collecting gas in alveolus of the present invention may be an injection molding integrated piece, and the collecting tube for gas in alveolus is a flexible tube, and the first channel 2, the second channel 3 and the third channel 4 are formed inside the collecting tube body and are independent from each other. The specific application method is the same as that of the intra-alveolar gas collection tube in fig. 2.

In the above embodiments, the repetitive insufflation-aspiration device is a syringe, or a motorized device with an oscillation mode or a high frequency ventilation mode. In the oscillation mode, the electric device can perform the operation of repeatedly sucking air to suck air and inject air under the control of a program, and the electric device presents a certain waveform in unit time. The high frequency ventilation mode allows the device to be powered for rapid insufflation or rapid insufflation if desired.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. An intra-alveolar gas collection tube, comprising: comprises a collecting tube body and a balloon (1) sleeved at the front end of the collecting tube body; a first channel (2), a second channel (3) and a third channel (4) are arranged in the collection tube body along the extension direction of the collection tube body, and a balloon air inlet (5), an air collection port (6) and an air injection-suction port (7) are arranged at the rear part of the collection tube body; the balloon (1) is communicated with a balloon air inlet (5) in a sealing mode through a first channel (2), a second channel (3) is used for communicating an alveolus and an air collection port (6), a third channel (4) is used for communicating the alveolus and an air injection-suction port (7), the air collection port (6) is operatively connected with an air collection device, and the air injection-suction port (7) is operatively connected with a repeated air injection-suction device.

2. The intra-alveolar gas collection tube of claim 1, wherein: the collecting tube body comprises an outer tube (8), an inner tube (9) arranged in the outer tube (8) in a penetrating mode along the extending direction of the outer tube (8), and the rear portion of the inner tube (9) extends backwards and extends out of the rear end of the outer tube (8); the first channel (2) is formed between the outer tube (8) and the inner tube (9), a through hole (10) for hermetically communicating the balloon (1) and the first channel (2) is formed in the tube wall of the outer tube (8) at the position matched with the balloon (1), and the balloon air inlet (5) is formed in the rear part of the outer tube (8); the inner tube (9) forms a second channel (3) and a third channel (4), and the gas collection port (6) and the gas injection-suction port (7) are provided at the rear of the inner tube (9) that protrudes through the rear end of the outer tube (8).

3. The intra-alveolar gas collection tube of claim 2, wherein: the front end of the outer tube (8) is provided with a plug (801), the inner tube (9) is arranged in the outer tube (8) in a sliding mode along the axial direction of the outer tube (8), and the plug (801) at the front end of the outer tube (8) can be punctured when the inner tube (9) slides forwards, so that the front end of the outer tube (8) is in a smooth state.

4. The intra-alveolar gas collection tube of claim 1, wherein: the collecting tube body comprises an outer tube (8), a first inner tube, a second inner tube and a third inner tube, wherein the first inner tube, the second inner tube and the third inner tube are arranged in the outer tube (8) in a penetrating mode along the extending direction of the outer tube (8), the balloon (1) is sleeved on the front portion of the outer tube (8), a through hole (10) is formed in the tube wall of the outer tube (8) at the position matched with the balloon (1), and a first mounting opening, a second mounting opening and a third mounting opening are formed in the rear portion of the outer tube (8); the first inner pipe forms the first channel (2), the front end of the first inner pipe is communicated with the inside of the balloon (1) through a through hole (10), the rear end of the first inner pipe extends backwards and protrudes out through a first mounting opening to be used as the balloon air inlet (5); the second inner pipe forms the second channel (3), the front end of the second inner pipe extends forwards at least to the front end of the outer pipe (8), the rear end of the second inner pipe extends backwards and protrudes out through the second mounting opening to be used as the gas collecting opening (6); the third inner pipe forms the third channel (4), the front end of the third inner pipe extends forwards at least to the front end of the outer pipe (8), the rear end of the third inner pipe extends backwards and extends out of the third mounting opening to be used as the gas injection-suction port (7).

5. The intra-alveolar gas collection tube of claim 1, wherein: the collecting tube body is an injection molding integrated piece, and the first channel (2), the second channel (3) and the third channel (4) are formed in the collecting tube body and are mutually independent.

6. The intra-alveolar gas collection tube of claim 1, wherein: the repetitive insufflation-aspiration device is a syringe or a motorized device with an oscillatory mode or a high frequency ventilation mode.