CN215134571U

CN215134571U - Alveolar lavage device

Info

Publication number: CN215134571U
Application number: CN202121183340.4U
Authority: CN
Inventors: 李文雅; 张鑫
Original assignee: Aerospace Center Hospital
Current assignee: Aerospace Center Hospital
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-14
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses an alveolar lavage device, including pipe, gasbag, intake pipe, three-way pipe, collector, negative pressure device and negative pressure regulating valve, the gasbag cover is on the pipe, gasbag and intake pipe intercommunication, intake-tube connection gas injection device, the pipe wall of intake pipe and the pipe wall fixed connection of pipe, the three-way pipe links to each other with pipe mouth, collector and the priming device of keeping away from the gasbag respectively, the collector passes through the tube coupling with the negative pressure device, negative pressure regulating valve sets up on the pipeline between collector and negative pressure device. The utility model can support the target segment trachea through the air bag, prevent the collapse of the airway wall caused by suction, generate the best sealing effect, prevent lavage liquid from flowing out through the airway opening and increase the resorption amount; can reduce the secretion in the lumen of the hybrid bronchoscope to the alveolar lavage fluid, and reduce the deviation of lavage fluid cell classification caused by inflammatory cells in the large airway; the negative pressure is adjustable, the air passage damage is reduced, and the resorption amount is effectively controlled.

Description

Alveolar lavage device

Technical Field

The utility model relates to the technical field of medical equipment, more specifically, the utility model relates to an alveolar lavage device.

Background

Bronchoalveolar lavage is a non-invasive procedure performed through a bronchoscope and has been widely accepted in disease diagnosis. By injecting sufficient lavage fluid into alveoli and attracting the cells sufficiently, important information such as immune cells, inflammatory cells, cytology and infectious microbe pathogeny information is obtained at the alveolar level, and diagnosis, disease observation and prognosis of respiratory diseases are assisted. Most of the current clinics are to embed a bronchoscope in the third or fourth lower segment of the bronchus to obtain alveolar lavage and resorption. Injecting the injection liquid into the biopsy port, and connecting the negative pressure end with the collector for resorption. However, there are a series of disadvantages, such as:

1. the negative pressure is too strong, causing the distal airway to collapse or damage the airway mucosa, reducing the amount of resorption or changing the shape of the alveolar lavage fluid. A decrease in suction negative pressure can extend the lavage time, causing the bronchoscope to change the incarceration position or increasing airway injury.

2. The bronchoscope gradually goes from the large airway to the small airway, the lumen can remain the secretion of the large airway, and the possibility that the lavage fluid is polluted by mucus and inflammatory cells of the large airway cannot represent the real lesion of the far-end alveolus.

3. Poor incarceration at the lavage site or cough can cause lavage fluid to leak out of the bronchoscope and the resorption amount is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that the negative pressure of the existing alveolar lavage is not easy to control, the resorption amount is less, and the cavity can remain the secretion of the atmosphere, the utility model innovatively provides an alveolar lavage device which can support the target section of the trachea through an air bag, prevent the air passage wall from collapsing due to attraction, generate the best sealing effect, prevent lavage liquid from flowing out through the air passage opening and increase the resorption amount; can reduce the secretion in the lumen of the hybrid bronchoscope to the alveolar lavage fluid, and reduce the deviation of lavage fluid cell classification caused by inflammatory cells in the large airway; the negative pressure is adjustable, the air passage damage is reduced, and the resorption amount can be effectively controlled.

For realizing foretell technical purpose, the utility model discloses an alveolar lavage device, including pipe, gasbag, intake pipe, three-way pipe, collector, negative pressure device and negative pressure regulating valve, the gasbag cover is in on the pipe, the gasbag with the intake pipe intercommunication, the gas injection device is connected to the other end of intake pipe, the pipe wall of intake pipe with the pipe wall fixed connection of pipe, the first mouth of pipe of three-way pipe with the pipe is kept away from the pipe mouth of gasbag links to each other, the second mouth of pipe of three-way pipe with the collector links to each other, the third mouth of pipe of three-way pipe links to each other with priming device, the collector with negative pressure device passes through the tube coupling, negative pressure regulating valve sets up the collector with on the pipeline between the negative pressure device.

Furthermore, a first one-way valve is arranged on a pipeline for connecting the three-way pipe with the liquid injection device.

Furthermore, a second one-way valve is arranged on the air inlet pipe.

Further, the conduit is a hard pipe, and the air inlet pipe is a hose.

Further, the air sac is of an ellipsoid shape.

Furthermore, the negative pressure regulating valve comprises an annular valve body, a blocking piece, a rotating shaft, a damping ring and a regulating handle, wherein the blocking piece rotates relative to the annular valve body inside the annular valve body, the rotating shaft penetrates through the through hole, the damping ring is sleeved on the rotating shaft, the damping ring is clamped between the rotating shaft and the hole wall of the through hole, one end, located inside the annular valve body, of the rotating shaft is fixedly connected with the blocking piece, and one end, located outside the annular valve body, of the rotating shaft is fixedly connected with the regulating handle.

Furthermore, the negative pressure regulating valve comprises a three-way sleeve and a pressing plug, the three-way sleeve is sleeved on a pipeline between the collector and the negative pressure device, and the pressing plug is pressed in a pipe orifice of the pipeline between the three-way sleeve and the collector and the negative pressure device.

Furthermore, a three-way control valve is arranged on the three-way pipe.

The utility model has the advantages that:

the alveolus lavage device of the utility model can support the target segment trachea through the air bag, prevent the air passage wall from collapsing due to suction, generate the best sealing effect, prevent lavage liquid from flowing out through the air passage opening, and increase the resorption amount; can reduce the secretion in the lumen of the hybrid bronchoscope to the alveolar lavage fluid, and reduce the deviation of lavage fluid cell classification caused by inflammatory cells in the large airway; the negative pressure is adjustable, the air passage damage is reduced, and the resorption amount can be effectively controlled.

Drawings

Fig. 1 is a schematic structural view of an alveolar lavage apparatus according to an embodiment of the present invention;

fig. 2 is a longitudinal sectional view of a negative pressure regulating valve according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a negative pressure regulating valve according to another embodiment of the present invention.

In the figure, the position of the upper end of the main shaft,

1. a conduit; 2. an air bag; 3. an air inlet pipe; 4. a three-way pipe; 5. a collector; 6. a negative pressure device; 7. a negative pressure regulating valve; 71. an annular valve body; 72. a baffle plate; 73. a rotating shaft; 74. an adjusting handle; 75. a damping ring; 76. a three-way sleeve; 77. pressing the plug; 8. a three-way control valve.

Detailed Description

The alveolar lavage device provided by the present invention is explained and explained in detail below with reference to the drawings of the specification.

As shown in fig. 1, the present embodiment specifically discloses an alveolar lavage device, which includes a catheter 1, an air bag 2, an air inlet tube 3, a three-way tube 4, a collector 5, a negative pressure device 6 and a negative pressure regulating valve 7, wherein the air bag 2 is sleeved on the catheter 1, the air bag 2 is communicated with the air inlet tube 3, the other end of the air inlet tube 3 is connected with an air injection device, and the air injection device injects air into the air bag 2 from the air inlet tube 3 to prop up the air bag 2. The gas injection apparatus may be an injector, and the end of the gas inlet tube 3 connected to the gas injection apparatus may be kept in a sealed state when gas injection operation is not performed, and a sealing cap or sub-bag may be provided. The wall of the air inlet pipe 3 is fixedly connected with the wall of the conduit 1 and enters the alveolus along with the movement of the conduit 1. The first pipe orifice of the three-way pipe 4 is connected with the pipe orifice of the pipe 1 far away from the air bag 2, the second pipe orifice of the three-way pipe 4 is connected with the collector 5, the third pipe orifice of the three-way pipe 4 is connected with the liquid injection device, the collector 5 is connected with the negative pressure device 6 through a pipeline, and the negative pressure regulating valve 7 is arranged on the pipeline between the collector 5 and the negative pressure device 6. The liquid injection device injects liquid into the catheter from the third pipe orifice, and the liquid enters the lung segment through the catheter 1. Then the third tube mouth is closed, the negative pressure device 6 generates negative pressure, and lavage fluid is sucked into the collector 5 for collection by the negative pressure, so as to obtain the alveolar level information.

The three-way pipe 4 is provided with a three-way control valve 8, two or three pipelines in the three-way pipe are communicated through the adjustment of the three-way control valve 8, and the operations of liquid injection, negative pressure and the like are replaced. As shown in fig. 1, the arrows of the three-way control valve 8 point to which line and which line is open.

The pipeline that three-way pipe 4 and priming device are connected is equipped with first check valve, and first check valve only allows liquid to get into pipe 1, prevents that the lavage liquid in the pipe 1 from flowing back to priming device, increases the resorption volume.

The air inlet pipe 3 is provided with a second one-way valve. The second one-way valve only allows the gas injection device to inject gas into the airbag 2, and the gas injection efficiency is ensured.

The mouth of the catheter 1 close to the air bag 2 is a round mouth, so that the tracheal tissue is prevented from being scratched. The conduit 1 is a hard pipe, and the air inlet pipe 3 is a hose. The catheter 1 carries a flexible tube to the target segmental bronchus. The catheter 1 is provided as a rigid tube, preferably to be delivered to the targeted lung segment.

The air bag 2 is in an ellipsoid shape and is attached to the bronchial wall, so that the tracheal tissue is prevented from being scratched in the process of entering the lung section.

As shown in fig. 2, the negative pressure regulating valve 7 includes an annular valve body 71, a blocking piece 72 rotating inside the annular valve body 71 relative to the annular valve body 71, a rotating shaft 73, a damping ring 75 and a regulating handle 74, a through hole is provided on the annular valve body 71, the rotating shaft 73 penetrates through the through hole, the damping ring 75 is sleeved on the rotating shaft 73, the damping ring 75 is clamped between the rotating shaft 73 and the hole wall of the through hole, one end of the rotating shaft 73 located inside the annular valve body 71 is fixedly connected with the blocking piece 72, and one end of the rotating shaft 73 located outside the annular valve body 71 is fixedly connected with the regulating handle 74. Two ends of the annular valve body 71 are respectively connected with a pipeline between the negative pressure device 6 and the collector 5, the baffle piece 72 is circular, and the annular valve body 71 can be completely sealed when the baffle piece 72 rotates to a certain angle. The flap can be rotated by externally rotating the adjustment handle 74 to adjust the angle of the flap 72 within the annular valve body 71, and the amount of negative pressure is maximized when the flap 72 is perpendicular to the annular valve body 71. The damping ring 75 provides a damping force to maintain the flap 72 in position relative to the annular valve body 71 during negative pressure.

In another embodiment, as shown in fig. 3, the negative pressure regulating valve 7 comprises a three-way sleeve 76 and a pressing plug 77, the three-way sleeve 76 is sleeved on the pipeline between the collector 5 and the negative pressure device 6, and the pressing plug 77 is pressed in the pipeline of the three-way sleeve 76 perpendicular to the pipeline between the collector 5 and the negative pressure device 6. The pipeline between the collector 5 and the negative pressure device 6 is a hose, and the deformation of the hose is adjusted by adjusting the depth of pressing the plug 77 into the nozzle of the three-way sleeve 76, so as to adjust the negative pressure. When the plug 77 is pressed to generate no pressing force, the hose keeps the original shape, and the negative pressure is maximum; when the plug 77 is pressed to press and contact the two side walls of the hose, the negative pressure is minimal, even no negative pressure is generated.

The alveolar lavage device of the embodiment is used in the process of alveolar lavage, the catheter 1 is inserted into the opening of the bronchial section of target lavage from the biopsy port end, and the gas injection device injects gas into the air bag 2 to seal the target sub-section bronchial tube, so that the optimal sealing is realized, and lavage liquid is prevented from flowing out through the airway opening during negative pressure; also can reduce the secretion of the lumen of the hybrid bronchoscope into the alveolar lavage fluid, and reduce the deviation of lavage fluid cell classification caused by inflammatory cells in the large airway. Then warm saline is sent into the lung section from the catheter 1 through the third pipe orifice of the three-way pipe, and then the negative pressure device 7 is opened to suck the lavage liquid into the collector 5 through the second pipe orifice of the three-way pipe for recovery. The collector 5 directly absorbs the alveolar lavage fluid to avoid secondary pollution. In the negative pressure absorption process, the negative pressure regulating valve 7 can be regulated according to actual conditions, the negative pressure strength is controlled, the air passage damage is reduced, and the resorption amount can be effectively controlled. The negative pressure device of this embodiment is the negative pressure device that sets up on the hospital wall, and the alveolar lavage device of this embodiment uses conveniently.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element 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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the terms "this embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and simple improvements made in the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An alveolar lavage device, which is characterized by comprising a catheter (1), an air bag (2), an air inlet pipe (3), a three-way pipe (4), a collector (5), a negative pressure device (6) and a negative pressure regulating valve (7), wherein the air bag (2) is sleeved on the catheter (1), the air bag (2) is communicated with the air inlet pipe (3), the other end of the air inlet pipe (3) is connected with an air injection device, the pipe wall of the air inlet pipe (3) is fixedly connected with the pipe wall of the catheter (1), a first pipe orifice of the three-way pipe (4) is connected with a catheter orifice of the catheter (1), which is far away from the air bag (2), a second pipe orifice of the three-way pipe (4) is connected with the collector (5), a third pipe orifice of the three-way pipe (4) is connected with an injection device, and the collector (5) is connected with the negative pressure device (6) through a pipeline, the negative pressure regulating valve (7) is arranged on a pipeline between the collector (5) and the negative pressure device (6).

2. The alveolar lavage device according to claim 1, wherein the three-way pipe (4) is provided with a first one-way valve on the pipeline connected with the liquid injection device.

3. The alveolar lavage device according to claim 1, wherein the air intake tube (3) is provided with a second one-way valve.

4. The alveolar lavage device according to claim 1, wherein the catheter (1) is a rigid tube and the air intake tube (3) is a flexible tube.

5. The alveolar lavage device according to claim 1, characterized in that the balloon (2) is of an ellipsoidal type.

6. The alveolar lavage device according to claim 1, wherein the negative pressure regulating valve (7) comprises an annular valve body (71), a baffle (72) which rotates relative to the annular valve body (71) in the annular valve body (71), a rotating shaft (73), a damping ring (75) and a regulating handle (74), a through hole is arranged on the annular valve body (71), the rotating shaft (73) passes through the through hole, the damping ring (75) is sleeved on the rotating shaft (73), the damping ring (75) is clamped between the rotating shaft (73) and the hole wall of the through hole, one end of the rotating shaft (73) in the annular valve body (71) is fixedly connected with the baffle (72), and one end of the rotating shaft (73) in the annular valve body (71) is fixedly connected with the regulating handle (74).

7. The alveolar lavage device according to claim 1, characterized in that the negative pressure regulating valve (7) comprises a three-way sleeve (76) and a pressing plug (77), the three-way sleeve (76) being sleeved on the pipe between the collector (5) and the negative pressure device (6), the pressing plug (77) pressing in the mouth of the three-way sleeve (76) perpendicular to the pipe between the collector (5) and the negative pressure device (6).

8. The alveolar lavage device according to claim 1, wherein the tee is provided with a three-way control valve.