Bronchoalveolar lavage fluid collecting device

Abstract

The utility model provides a bronchoalveolar lavage fluid collecting device, belongs to the technical field of alveolar lavage, and solves the problem that lavage fluid subpackaging is troublesome in the prior art. The device comprises a first collection chamber and a second collection chamber which are communicated in a tank body, the second collection chamber is communicated with an insertion pipe, a subpackaging bottle is placed under the insertion pipe, a bottle cap is arranged at an opening in the upper end of the subpackaging bottle in a threaded and sleeving mode, a guide pipe is communicated with the bottle cap, and a sealing plate is arranged on an opening in the lower end of the guide pipe in an attached mode. One end of the sealing plate is hinged to the guide pipe, a torsion spring is arranged at the hinged position, a support is arranged on the outer side of the tank body, and a driving mechanism is arranged on the support. After the tank body collects a certain amount of lavage fluid, the intubation tube is inserted into the subpackaging bottle through the driving mechanism for subpackaging, after the lavage fluid is injected, the intubation tube is pulled out, and the whole process is operated by a mechanical device instead of manual operation, so that the risk of infection caused by contact with the lavage fluid is reduced, and more manpower is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of alveolar lavage, in particular to a bronchoalveolar lavage fluid collection device. Background Art

[0002] Alveolar lavage is a treatment and examination method that uses a fiberoptic bronchoscope to lavage the alveoli. The advantages of alveolar lavage include clearing a large number of pus plugs, delivering drugs directly to the patient, and reducing the use of antibiotics. At the same time, through the study of the alveolar surface lining fluid, inflammation, immune cells and tumors can be examined, which helps to complete the diagnosis, treatment and pathogenesis research of certain respiratory diseases.

[0003] When the purpose of alveolar lavage is examination, the lavage fluid needs to be divided into multiple collection bottles for various examinations (such as exfoliated cell examination and image analysis pathological diagnosis, Mycobacterium tuberculosis polymerase chain reaction technology, bronchial lavage fluid cell count and classification, bronchial lavage fluid T cell subsets, specific alkaline phosphatase, etc.). The conventional filling operation of lavage fluid requires medical staff to take lavage fluid from a large collection bottle and then put it into multiple small collection bottles. In addition, in order to ensure the amount used for examination, lavage fluid needs to be input into small collection bottles multiple times. The whole operation process is relatively cumbersome and there is a risk of infection due to contact with lavage fluid. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a bronchoalveolar lavage fluid collection device, in which a tank body collects the lavage fluid, and after a certain amount is collected, a cannula is inserted into a dispensing bottle for dispensing through a driving mechanism. After the lavage fluid is injected, the cannula is controlled to be pulled out of the dispensing bottle, and a sealing plate with a sealed outlet in the dispensing bottle blocks the outlet after the cannula is removed to prevent the lavage fluid from flowing out of the dispensing bottle. The entire process is performed by mechanical devices instead of manual operations, which reduces the risk of infection due to contact with the lavage fluid and saves a lot of manpower.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A bronchoalveolar lavage fluid collecting device comprises a tank body, wherein two communicating first collecting chambers and second collecting chambers are arranged in the upper and lower parts of the tank body, a liquid inlet pipe and a negative pressure suction pipe are connected to the first collecting chamber, a first solenoid valve is arranged in the channel connecting the first collecting chamber and the second collecting chamber, a first liquid level sensor is arranged in the second collecting chamber, the second collecting chamber is connected to a vertically arranged cannula, a second solenoid valve is arranged in the cannula, a sub-filling bottle is placed directly below the cannula, a bottle cap is threadedly sleeved at the upper end opening of the sub-filling bottle, a guide tube extending into the sub-filling bottle is connected to the bottle cap, a sealing plate is fitted on the lower end opening of the guide tube, one end of the sealing plate is hinged to the guide tube and a torsion spring is arranged at the hinge, a bracket is arranged on the outer side of the tank body, and a driving mechanism for driving the tank body to move up and down is arranged on the bracket.

[0007] Preferably, the driving mechanism includes a hydraulic telescopic rod, the upper end of the hydraulic telescopic rod is fixedly connected to a first annular plate connected to the bracket, the lower end of the hydraulic telescopic rod is fixedly connected to a pressure plate connected to the tank body, a second annular plate connected to the bracket is arranged below the pressure plate, and a spring is connected between the pressure plate and the second annular plate.

[0008] Preferably, the lower surface of the pressure plate and the upper surface of the second annular plate are both provided with guide columns located inside the spring.

[0009] Preferably, a first disc for placing the sub-bottle is provided below the sub-bottle, a motor is connected to the bottom of the first disc, a connecting rod is connected to the first disc, a second disc is connected to the connecting rod, a plurality of arc grooves are provided on the side wall of the second disc at equal intervals along the circumferential direction, an arc fixing piece is hinged on the second disc, a through groove is provided on one end of the arc fixing piece away from the hinge, and an elastic hook cooperating with the through groove is provided on the second disc.

[0010] Preferably, the first disc is provided with a slot for placing the sub-packaging bottles.

[0011] Preferably, the second collecting chamber is connected to a pressurized pipe.

[0012] Preferably, a second liquid level sensor is provided on the inner wall of the cannula.

[0013] Preferably, a filter screen covering the opening of the liquid inlet pipe is arranged in the first collecting chamber.

[0014] Preferably, an opening is provided at the upper end of the tank body, and a cover plate is detachably connected to the opening, and the filter screen is mounted on the cover plate.

[0015] Preferably, the bottoms of the first collecting chamber and the second collecting chamber are both conical.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] The tank collects the lavage fluid, and after a certain amount is collected, the cannula is inserted into the dispensing bottle for dispensing through the driving mechanism. After the lavage fluid is injected, the cannula is controlled to be pulled out of the dispensing bottle. The sealing plate with a sealed outlet in the dispensing bottle blocks the outlet after the cannula is removed to prevent the lavage fluid from flowing out of the dispensing bottle. The entire process is performed by mechanical devices instead of manual operations, which reduces the risk of infection due to contact with the lavage fluid and saves a lot of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a cross-sectional structure provided for an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of a top view of the first disc and the second disc provided in an embodiment of the utility model;

[0021] Figure 3 for Figure 1 Enlarged structural diagram at A in the middle.

[0022] Description of the drawings: 1- bracket; 2- second annular plate; 3- spring; 4- pressure plate; 5- hydraulic telescopic rod; 6- first annular plate; 7- liquid inlet pipe; 8- filter screen; 9- negative pressure suction pipe; 10- first collecting chamber; 11- first solenoid valve; 12- tank body; 13- second collecting chamber; 14- pressurizing pipe; 15- guide column; 16- first liquid level sensor; 17- second liquid level sensor; 18- second solenoid valve; 19- cannula; 20- second disc; 21- arc-shaped fixing piece; 22- sub-bottle; 23- first disc; 24- slot; 25- motor; 26- connecting rod; 27- elastic hook; 28- arc-shaped slot; 29- bottle cap; 30- guide pipe; 31- sealing plate; 32- cover plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Combine the following Figure 1-Figure 3 The utility model is described in detail.

[0027] Example

[0028] Bronchoalveolar lavage fluid collection device, such as Figure 1 and 3 As shown, it includes a tank body 12, in which two communicating first collecting chambers 10 and second collecting chambers 13 are arranged in the upper and lower parts of the tank body 12, a liquid inlet pipe 7 and a negative pressure suction pipe 9 are connected to the first collecting chamber 10, a first solenoid valve 11 is arranged in the channel connecting the first collecting chamber 10 and the second collecting chamber 13, a first liquid level sensor 16 is arranged in the second collecting chamber 13, the second collecting chamber 13 is connected to a vertically arranged cannula 19, a second solenoid valve 18 is arranged in the cannula 19, a sub-filling bottle 22 is placed directly below the cannula 19, a bottle cap 29 is threadedly sleeved at the upper end opening of the sub-filling bottle 22, the bottle cap 29 is connected to a guide tube 30 extending into the sub-filling bottle 22, a sealing plate 31 is fitted at the lower end opening of the guide tube 30, one end of the sealing plate 31 is hinged to the guide tube 30 and a torsion spring is arranged at the hinge, a bracket 1 is arranged on the outer side of the tank body 12, and a driving mechanism for driving the tank body 12 to move up and down is arranged on the bracket 1.

[0029] The first solenoid valve 11, the first liquid level sensor 16, the second solenoid valve 18 and the driving mechanism are all connected to a controller (the controller is prior art and is not shown in the figure); under the negative pressure suction action of the negative pressure suction tube 9 (the negative pressure suction tube 9 is connected to the negative pressure device through a hose), the irrigation fluid flows from the liquid inlet tube 7 (the liquid inlet tube 7 is connected to the fiber bronchoscope through a hose) into the first collection chamber 10 and the second collection chamber 13, at which time the first solenoid valve 11 is in an open state and the second solenoid valve 18 is in a closed state; the irrigation fluid is collected in the second collection chamber 13 until the liquid level reaches the first liquid level sensor 16, the first liquid level sensor 16 detects the relevant signal and feeds it back to the controller, and the controller then controls the first solenoid valve 11 to close and controls the driving mechanism to insert the cannula 19 into the guide tube 30 and push open the sealing plate 31, and then opens the second solenoid valve 18, and the irrigation fluid flows into the sub-filling bottle 22. After the irrigation liquid is injected, the driving mechanism is controlled to move the cannula 19 out of the guide tube 30 and close the second electromagnetic valve 18. The sealing plate 31 is kept in contact with the lower end of the sealing guide tube 30 under the reset action of the torsion spring, thereby achieving the sealing of the sub-filling bottle 22. Finally, the operator replaces the new sub-filling bottle 22 for the sub-filling operation. The guide tube 30 is installed on the bottle cap 29. When the irrigation liquid needs to be taken out, the bottle cap 29 is unscrewed to take out the guide tube 30 and the sealing plate 31 together.

[0030] like Figure 1 As shown, the driving mechanism includes a hydraulic telescopic rod 5, the upper end of which is fixedly connected to a first annular plate 6 connected to a bracket 1, the lower end of which is fixedly connected to a pressing plate 4 connected to a tank body 12, a second annular plate 2 connected to the bracket 1 is provided below the pressing plate 4, and a spring 3 is connected between the pressing plate 4 and the second annular plate 2. The hydraulic telescopic rod 5 pushes the pressing plate 4 downward to achieve the downward movement of the tank body 12. After the hydraulic telescopic rod 5 retracts, the spring 3 drives the tank body 12 to move upward. The first annular plate 6 and the second annular plate 2 can support the tank body 12 to ensure the stable movement of the tank body 12. At least two hydraulic telescopic rods 5 are provided and are respectively located on both sides of the tank body 12, so as to stably push the tank body 12 to move.

[0031] The lower surface of the pressure plate 4 and the upper surface of the second annular plate 2 are both provided with guide posts 15 located inside the spring 3. The guide posts 15 provide a guide function for the spring 3 to prevent the spring 3 from deflecting and deforming and being damaged during the compression process.

[0032] like Figure 1 and 2As shown, a first disc 23 for placing the sub-bottle 22 is provided below the sub-bottle 22, a motor 25 is connected to the bottom of the first disc 23, a connecting rod 26 is connected to the first disc 23, a second disc 20 is connected to the connecting rod 26, a side wall of the second disc 20 is provided with a plurality of arc grooves 28 equidistantly arranged along the circumferential direction, an arc fixing member 21 is hingedly connected to the second disc 20, a through groove is provided at one end of the arc fixing member 21 away from the hinge, and an elastic hook 27 cooperating with the through groove is provided on the second disc 20.

[0033] The motor 25 is also connected to the controller. The multiple arc grooves 28 provided on the second disc 20 can hold multiple sub-bottles 22, and are fixed with the cooperation of the elastic hook 27 and the arc fixing member 21 to prevent the sub-bottle 22 from tipping over. After the irrigation liquid of the previous sub-bottle 22 is injected, the controller controls the motor 25 to rotate a certain angle so that the next empty sub-bottle 22 is aligned with the cannula 19, thereby replacing the manual bottle changing operation, further reducing the labor intensity and the risk of infection. When the arc fixing member 21 fixes the sub-bottle 22, the elastic hook 27 penetrates the through groove and hooks on one side of the through groove, thereby achieving a fixing effect. When the sub-bottle 22 needs to be taken out, the elastic hook 27 is moved to one side so that it is no longer hooked on one side of the through groove, thereby releasing the fixation.

[0034] The first disc 23 is provided with a slot 24 for placing the sub-filling bottle 22 , and the slot 24 can further stably place the sub-filling bottle 22 .

[0035] The second collection chamber 13 is connected to a pressurizing tube 14. The pressurizing tube 14 is connected to a blowing device through a hose, and the blowing device blows out sterile air, which pressurizes the second collection chamber 13, so that the irrigation fluid can flow out of the second collection chamber 13 quickly, reducing the time for packaging.

[0036] A second liquid level sensor 17 is provided on the inner wall of the cannula 19. The second liquid level sensor 17 is also connected to the controller and is used to detect the lowest liquid level signal of the irrigation fluid. When the level of the irrigation fluid reaches the second liquid level sensor 17, the irrigation fluid has been basically dispensed. At this time, the second liquid level sensor 17 transmits a signal to the controller, and the controller controls the second solenoid valve 18 to close, the first solenoid valve 11 to open, and the driving mechanism to drive the tank body 12 to move upward.

[0037] A filter screen 8 is provided in the first collecting chamber 10 and is covered at the pipe opening of the liquid inlet pipe 7. The filter screen 8 can filter some impurities in the lungs to prevent the impurities from clogging the cannula 19.

[0038] The upper end of the tank body 12 is provided with an opening, and a cover plate 32 is detachably connected to the opening, and the filter screen 8 is mounted on the cover plate 32, and the cover plate 32 is detachably connected to the tank body 12 through a screw. The cover plate 32 is sealed and attached to the upper end opening of the tank body 12. After the collection device is used, the cover plate 32 is removed to clean the filter screen 8 and the inside of the tank body 12.

[0039] The bottoms of the first collecting chamber 10 and the second collecting chamber 13 are both conical, so as to facilitate the collection of the irrigation fluid.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bronchoalveolar lavage fluid collection device, characterized in that: The invention comprises a tank body (12), wherein the tank body (12) is provided with two communicating first collecting chambers (10) and second collecting chambers (13) in the upper and lower parts, the first collecting chamber (10) is connected with a liquid inlet pipe (7) and a negative pressure suction pipe (9), a first solenoid valve (11) is provided in a channel connecting the first collecting chamber (10) and the second collecting chamber (13), a first liquid level sensor (16) is provided in the second collecting chamber (13), the second collecting chamber (13) is connected with a vertically arranged cannula (19), and a second solenoid valve (11) is provided in the cannula (19). A valve (18) is provided, a filling bottle (22) is placed just below the insertion tube (19), a bottle cap (29) is threadedly sleeved at the upper opening of the filling bottle (22), a guide tube (30) extending into the filling bottle (22) is connected to the bottle cap (29), a sealing plate (31) is fitted at the lower opening of the guide tube (30), one end of the sealing plate (31) is hinged to the guide tube (30) and a torsion spring is provided at the hinge, a bracket (1) is provided on the outer side of the tank body (12), and a driving mechanism for driving the tank body (12) to move up and down is provided on the bracket (1).

2. The bronchoalveolar lavage fluid collection device according to claim 1, characterized in that: The driving mechanism comprises a hydraulic telescopic rod (5), the upper end of the hydraulic telescopic rod (5) is fixedly connected to a first annular plate (6) connected to a bracket (1), the lower end of the hydraulic telescopic rod (5) is fixedly connected to a pressing plate (4) connected to a tank body (12), a second annular plate (2) connected to the bracket (1) is arranged below the pressing plate (4), and a spring (3) is connected between the pressing plate (4) and the second annular plate (2).

3. The bronchoalveolar lavage fluid collection device according to claim 2, characterized in that: The lower surface of the pressure plate (4) and the upper surface of the second annular plate (2) are both provided with guide columns (15) located inside the spring (3).

4. The bronchoalveolar lavage fluid collection device according to claim 1, characterized in that: A first disc (23) for placing the sub-bottle (22) is arranged below the sub-bottle (22); a motor (25) is connected to the bottom of the first disc (23); a connecting rod (26) is connected to the first disc (23); a second disc (20) is connected to the connecting rod (26); a plurality of arc grooves (28) are equidistantly provided on the side wall of the second disc (20) along the circumferential direction; an arc fixing member (21) is hingedly connected to the second disc (20); a through groove is provided at one end of the arc fixing member (21) away from the hinge; and an elastic hook (27) cooperating with the through groove is provided on the second disc (20).

5. The bronchoalveolar lavage fluid collection device according to claim 4, characterized in that: The first disc (23) is provided with a slot (24) for placing the sub-packaging bottle (22).

6. The bronchoalveolar lavage fluid collection device according to claim 1, characterized in that: The second collecting chamber (13) is connected to a pressurizing pipe (14).

7. The bronchoalveolar lavage fluid collection device according to claim 1, characterized in that: A second liquid level sensor (17) is arranged on the inner wall of the insertion tube (19).

8. The bronchoalveolar lavage fluid collection device according to claim 1, characterized in that: A filter screen (8) is arranged in the first collecting chamber (10) and is covered at the pipe opening of the liquid inlet pipe (7).

9. The bronchoalveolar lavage fluid collection device according to claim 8, characterized in that: The upper end of the tank body (12) is provided with an opening, and a cover plate (32) is detachably connected to the opening, and the filter screen (8) is mounted on the cover plate (32).

10. The bronchoalveolar lavage fluid collection device according to claim 1, characterized in that: The bottoms of the first collecting chamber (10) and the second collecting chamber (13) are both conical.

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