A bronchoscope alveolar lavage fluid collector

Abstract

The present application relates to the technical field of medical apparatus and instruments, in particular to a bronchoscope alveolar lavage fluid collector, which is applied to a bronchoscope alveolar lavage fluid suction system, the suction system comprises a bronchoscope unit, a waste liquid collecting unit and a negative pressure aspirator, and the bronchoscope unit, the collector, the waste liquid collecting unit and the negative pressure aspirator are connected in series, the collector comprises a valve mechanism, an adapter mechanism and a specimen jar; the specimen jar is detachably installed on the adapter mechanism. The valve mechanism is communicated with the bronchoscope unit and the waste liquid collecting unit respectively, and the adapter mechanism and the detachable assembly structure of the specimen jar are matched, when sampling, the specimen jar is only needed to be installed on the side of the valve mechanism by using the adapter mechanism, and a complete sampling channel can be constructed, after sampling, the sampling channel can be switched to a waste liquid collecting channel by only removing the adapter mechanism, and the pipeline between the bronchoscope unit and the waste liquid collecting unit does not need to be repeatedly detached and connected, so that the pipeline pollution risk and the operation complexity are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a bronchoscope alveolar lavage fluid collector. BACKGROUND

[0002] Bronchoscope alveolar lavage is an endoscopic diagnosis and treatment technology. By inserting a bronchoscope into the airway and injecting physiological saline into the target bronchus and then withdrawing, alveolar lavage fluid samples can be obtained for cytological, microbiological and other examinations to assist in the diagnosis of lung infections, tumors, diffuse lung diseases and other diseases. It can also remove foreign matter, viscous secretions or inflammatory exudates in the airway for the treatment of related lung lesions.

[0003] The alveolar lavage fluid specimen collector currently used is connected in series with the waste liquid collection container on the negative pressure suction pipeline. Therefore, when the alveolar lavage fluid in the specimen collector is collected to the required amount, the specimen collector inlet and outlet ports need to be removed from the pipeline, and then the waste liquid collection container inlet port needs to be connected to the bronchoscope suction valve. The operation process needs to keep the negative pressure suction stopped and close the corresponding valve to avoid leakage of the lavage fluid. This operation is complicated and time-consuming, increases the workload of medical staff, and increases the possibility of instrument contamination. SUMMARY

[0004] The purpose of the present application is to provide a bronchoscope alveolar lavage fluid collector to solve the technical problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical solutions.

[0006] A bronchoscope alveolar lavage fluid collector is applied to a bronchoscope alveolar lavage fluid suction system, the suction system comprising a bronchoscope unit, a waste liquid collection unit and a negative pressure aspirator, and the bronchoscope unit, the collector, the waste liquid collection unit and the negative pressure aspirator are connected in series, the collector comprising a valve mechanism, an adapter mechanism and a specimen jar; the specimen jar is detachably installed on the adapter mechanism, and the adapter mechanism is detachably installed on the valve mechanism; the valve mechanism is communicated with the bronchoscope unit through an inlet pipe, and the valve mechanism is communicated with the waste liquid collection unit through an outlet pipe; when the specimen jar is installed on the valve mechanism through the adapter mechanism, alveolar lavage fluid can be collected into the specimen jar; when the adapter mechanism is removed from the valve mechanism, the bronchoscope unit is directly communicated with the waste liquid collection unit through the valve mechanism.

[0007] Preferably, the valve mechanism comprises a valve body, a blocking ring, a circular core and a spring A; the valve body is cylindrical, a pair of insertion holes extending along the length axis are formed on one side end face of the valve body; an inlet port is arranged on one side of the outer wall of the valve body, an outlet port is arranged on the other side, and a flow guide port for connecting the two insertion holes is arranged in the valve body; an inlet pipe is connected to the inlet port, and an outlet pipe is connected to the outlet port; a blocking ring is fixed on the inner wall of each insertion hole near the port; a circular core is slidably installed in each insertion hole, and a plurality of flow-through holes are uniformly distributed around the axis of the circular core; a spring A is arranged in each insertion hole, one end of the spring A is fixed to the end face of the circular core, and the other end is fixed to the inner wall of the insertion hole; under the elastic restraint of the spring A, the end face of the circular core abuts against the blocking ring, at this time, the blocking ring can cover and block all the flow-through holes on the circular core; when the circular core is pushed away from the blocking ring by the inlet pipe or the outlet pipe to the limit position, the circular core covers and blocks the flow guide port.

[0008] Preferably, the adapter mechanism comprises an inlet pipe, an outlet pipe, an L-shaped joint, a fastening cap and a fastening end; the inlet pipe and the outlet pipe are fixed in the L-shaped joint in a penetrating manner, and both the inlet pipe and the outlet pipe are bent; the inlet pipe is longer than the outlet pipe, and one end of the inlet pipe is parallel to one end of the outlet pipe; the parallel ends of the inlet pipe and the outlet pipe are respectively matched with the two circular cores for abutting and pushing, and a plurality of flow-through ports are arranged in an annular array on the end portions of the inlet pipe and the outlet pipe; the inlet pipe and the outlet pipe can be matched to pass through the corresponding blocking rings and be inserted into the corresponding insertion holes; the fastening cap is installed on one end of the L-shaped joint and can be detachably installed on the valve body; the fastening end is arranged on the other end of the L-shaped joint, and the specimen jar can be detachably installed on the fastening end.

[0009] Preferably, a convex ring is fixedly sleeved on the inlet pipe and the outlet pipe, and a blocking sleeve for shielding and blocking the flow-through port is slidably sleeved on the inlet pipe and the outlet pipe; the two blocking sleeves are respectively matched with the corresponding blocking rings for abutting and pushing; a spring B is sleeved on the outside of the inlet pipe and the outlet pipe, one end of the spring B is fixed to the convex ring, and the other end is fixed to the blocking sleeve.

[0010] Preferably, the fastening cap is rotatably sleeved on the L-shaped joint, and the fastening cap and the valve body are connected by threads; the specimen jar and the fastening end are connected by threads.

[0011] Preferably, the specimen jar is made of transparent material, and a scale is arranged on the outer wall of the specimen jar.

[0012] Preferably, the bronchoscope unit comprises a sputum suction tube and a handle seat; one end of the sputum suction tube is installed in the handle seat in a penetrating manner and is connected to the inlet pipe, and the other end of the sputum suction tube is used for insertion into the human body; the connecting line in the bronchoscope unit is connected to the host computer.

[0013] Preferably, the waste liquid collecting unit comprises a waste liquid collecting tank, a liquid suction pipe and a suction pipe; one end of the liquid suction pipe is connected with an inlet end of the waste liquid collecting tank, and the other end is connected with an outlet pipe; one end of the suction pipe is connected with an outlet end of the waste liquid collecting tank, and the other end is connected with a negative pressure aspirator.

[0014] Preferably, the suction system further comprises a support frame, and the support frame is sequentially fixed with a rack A, a U-shaped clamping frame, a rack B and a rack C from top to bottom; the main machine is supported and placed on the rack A, the handle seat is clamped on the U-shaped clamping frame, the negative pressure aspirator is supported and placed on the rack B, and the waste liquid collecting tank is supported and placed on the rack C.

[0015] Preferably, anti-skid convex patterns are arranged around the axis of the outer peripheral wall of the fastening cap.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The valve mechanism of the present application is connected with the bronchoscope unit and the waste liquid collecting unit, and cooperates with the adapter mechanism and the specimen tank to form a detachable assembly structure. When sampling, the specimen tank is installed on the side of the valve mechanism by using the adapter mechanism, so that a complete sampling channel is formed. After sampling, the adapter mechanism is removed, so that the sampling channel is switched to a waste liquid collecting channel. The pipeline between the bronchoscope unit and the waste liquid collecting unit does not need to be repeatedly disassembled and connected, so that the risk of pipeline pollution and the operation complexity are reduced.

[0018] 2. During the removal of the adapter mechanism, the spring A is used to elastically reset the circular core member to continuously abut against the end of the inlet tube and the outlet tube. When the inlet tube and the outlet tube are not completely withdrawn, the center hole of the blocking ring member is blocked. When the inlet tube and the outlet tube are completely withdrawn, the flow-through hole of the blocking ring member is blocked, and the center hole of the blocking ring member is blocked by the circular core member. Without the need to close the negative pressure source and the related valve, the leakage of the lavage liquid can be effectively avoided, and the disassembly can be realized without stopping the machine.

[0019] 3. The blocking ring member has the functions of limiting and blocking of the circular core member, blocking of the flow-through hole and pushing of the blocking sleeve. The circular core member simultaneously blocks the center hole of the blocking ring member and the flow guide port. Multiple independent limiting members, blocking members and triggering members are not needed, so that the number of components is reduced, the assembly difficulty and the maintenance cost are reduced, and the overall reliability of the system is improved.

[0020] 4. The inlet tube and the outlet tube in the present application adopt a hard bending pipe structure. The bending shape of the hard bending pipe structure is matched with the L-shaped joint. Compared with the traditional flexible pipeline, the hard bending pipe structure can effectively prevent the lavage liquid from being blocked due to excessive bending of the pipeline. The annular array of the flow-through ports at the end of the inlet tube and the outlet tube and the uniformly distributed flow-through holes on the circular core member can increase the flow-through cross-sectional area of the lavage liquid, reduce the blocking probability of the channel by impurities such as mucus and flocculent substances in the lavage liquid, and ensure the negative pressure suction efficiency and the continuity of diagnosis and treatment.

[0021] 5. The valve mechanism, switching mechanism and specimen jar are designed as an inverted L-shaped structure as a whole, so that the inflow cannula is closer to the side where the overall gravity center is located than the outflow cannula in the specimen jar, while avoiding excessive inclination of the specimen jar, ensuring a certain distance between the liquid surface in the specimen jar and the outflow cannula, and effectively avoiding the situation that the lavage liquid in the specimen jar is sucked into the outflow cannula due to excessive inclination of the specimen jar, resulting in insufficient sampling amount. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the collector in the application;

[0023] Figure 2 It is a schematic diagram of the bronchoscope alveolar lavage fluid suction system structure;

[0024] Figure 3 It is Figure 1 the schematic diagram of the structure shown in the figure omits the inflow pipe and the outflow pipe;

[0025] Figure 4 It is Figure 3 the schematic diagram of the structure shown in the figure omits the specimen jar;

[0026] Figure 5 It is Figure 4 the schematic diagram of the structure shown in the figure omits the switching mechanism;

[0027] Figure 6 It is Figure 3 the schematic diagram of the structure shown in the figure omits the valve mechanism and the specimen jar;

[0028] Figure 7 It is Figure 3 the cross-sectional schematic diagram of the structure shown in the figure;

[0029] Figure 8 It is Figure 7 the enlarged schematic diagram of the structure at A in the figure;

[0030] Figure 9 It is Figure 8 the enlarged schematic diagram of the structure at B in the figure;

[0031] Figure 10 It is a schematic diagram of the specimen jar when the amount collected is tilted;

[0032] Figure 11 It is a schematic diagram of the structure when the two plug-in holes are connected in the application;

[0033] Figure 12 It is a schematic diagram of the structure when the flow-through port is plugged by the plugging sleeve.

[0034] In the figure: 1, support frame; 11, U-shaped card frame; 12, frame A; 13, frame B; 14, frame C; 2, sputum suction tube; 21, handle seat; 22, connecting line; 23, main machine; 3, waste liquid collection tank; 31, liquid suction tube; 32, suction tube; 4, negative pressure suction device; 5, valve mechanism; 51, valve body; 501, inlet pipe; 502, outlet pipe; 511, inlet port; 512, outlet port; 513, flow guide port; 52, plug hole; 53, blocking ring; 54, round core; 541, flow-through hole; 55, spring A; 6, adapter mechanism; 61, inlet cannula; 62, outlet cannula; 63, flow-through port; 64, L-shaped joint; 65, fastening cap; 651, anti-slip convex; 66, fastening end; 67, blocking sleeve; 68, convex ring; 69, spring B; 7, specimen tank; 71, scale. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0036] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connection", "installation" should be understood in a broad sense, for example, "connection" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through intermediate medium. In addition, "communication" can be direct communication, or can be indirect communication through intermediate medium. Among them, "fixing" means connecting with each other and the relative positional relationship after connection does not change. The orientation language mentioned in the embodiments of the present application, such as "inner", "outer", "top", "bottom", etc., is only the direction of the drawing, therefore, the orientation language used is to better and more clearly illustrate and understand the embodiments of the present application, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0037] In the embodiments of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0038] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.

[0039] Reference to "one embodiment" or "some embodiments" or "one implementation" or "some implementations" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in some embodiments" or "in one implementation" or "in some implementations" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to some, but not all, embodiments. The terms "including," "comprising," "carrying," "having," "containing," and variations thereof are meant to encompass the item listed thereafter, but do not exclude additional, unrecited items. The terms "a" or "an," as used herein in the disclosure, mean "one or more." Embodiment 1

[0040] Referring to Figure 2 The embodiment provides a bronchoscope alveolar lavage fluid suction system, the suction system comprising a bronchoscope unit, a waste liquid collecting unit and a negative pressure aspirator 4, the bronchoscope unit, the waste liquid collecting unit and the negative pressure aspirator 4 being connected in series to realize the construction of a negative pressure suction path.

[0041] The bronchoscope unit comprises a sputum suction tube 2 and a handle seat 21, the sputum suction tube 2 being installed in the handle seat 21 in a penetrating manner, the other end of the sputum suction tube 2 being used to be placed into a human body, and a connecting line 22 in the bronchoscope unit being connected with a main machine 23. It is worth noting that the bronchoscope unit adopts the prior art, and therefore, the specific structure and working principle thereof will not be explained in detail.

[0042] The waste liquid collecting unit comprises a waste liquid collecting tank 3, a liquid suction tube 31 and a suction tube 32, one end of the liquid suction tube 31 being connected with an inflow end of the waste liquid collecting tank 3, one end of the suction tube 32 being connected with an outflow end of the waste liquid collecting tank 3, and the other end of the suction tube 32 being connected with the negative pressure aspirator 4.

[0043] In addition, the suction system further comprises a support frame 1, the support frame 1 being sequentially fixed with a rack A 12, a U-shaped clamping frame 11, a rack B 13 and a rack C 14 from top to bottom, the main machine 23 being supported and placed on the rack A 12, the handle seat 21 being clamped on the U-shaped clamping frame 11, the negative pressure aspirator 4 being supported and placed on the rack B 13, and the waste liquid collecting tank 3 being supported and placed on the rack C 14, so that the support frame 1 can stably arrange the components in the suction system, and the stability during the bronchoscope alveolar lavage fluid suction is ensured.

[0044] As a solution in the prior art, the sputum suction tube 2 is connected with the liquid suction tube 31, and a negative pressure suction path is formed by the sputum suction tube 2, the liquid suction tube 31, the waste liquid collecting tank 3, the suction tube 32 and the negative pressure aspirator 4. One end of the sputum suction tube 2 is arranged in the patient's body. When the bronchoscope alveolar lavage fluid is suctioned, the negative pressure suction effect is generated by the operation of the negative pressure aspirator 4. The alveolar lavage fluid in the patient's body is suctioned into the waste liquid collecting tank 3 by the sputum suction tube 2 and the liquid suction tube 31. The waste liquid collecting tank 3 can collect the lavage fluid. The solution is only suitable for the suction and collection of the lavage fluid. Embodiment 2

[0045] Please refer to Figures 1-12 The present application provides a bronchoscope alveolar lavage fluid collector. The collector is applied to a bronchoscope alveolar lavage fluid suction system, and a bronchoscope unit, the collector, a waste liquid collecting unit and a negative pressure aspirator 4 are sequentially connected in series.

[0046] The collector comprises a valve mechanism 5, an adapter mechanism 6 and a specimen tank 7. The specimen tank 7 is detachably arranged on the adapter mechanism 6, the adapter mechanism 6 is detachably arranged on the valve mechanism 5, the valve mechanism 5 is communicated with the bronchoscope unit through an inlet pipe 501, and the valve mechanism 5 is communicated with the waste liquid collecting unit through an outlet pipe 502. When the specimen tank 7 is arranged on the valve mechanism 5 through the adapter mechanism 6, the alveolar lavage fluid can be collected into the specimen tank 7. When the adapter mechanism 6 is detached from the valve mechanism 5, the bronchoscope unit is directly communicated with the waste liquid collecting unit through the valve mechanism 5.

[0047] When the sample of the lavage fluid in the alveolus needs to be collected, the valve mechanism 5 is connected with the sputum suction tube 2 through the inlet pipe 501, and the valve mechanism 5 is connected with the liquid suction tube 31 through the outlet pipe 502. Then the specimen tank 7 is arranged on the adapter mechanism 6, and the adapter mechanism 6 is arranged on the valve mechanism 5. When the negative pressure suction effect is generated by the operation of the negative pressure aspirator 4, the lavage fluid in the patient's body is suctioned into the specimen tank 7 by the sputum suction tube 2, the inlet pipe 501 and the adapter mechanism 6, so as to realize the sampling of the lavage fluid.

[0048] After the sampling is completed, the adapter mechanism 6 is detached from the valve mechanism 5. At this time, the inlet pipe 501 is directly communicated with the outlet pipe 502 through the valve mechanism 5, so as to realize the direct communication between the bronchoscope unit and the waste liquid collecting unit. The lavage fluid in the patient's body can be suctioned into the waste liquid collecting tank 3 for collection by the operation of the negative pressure aspirator 4.

[0049] When the specimen tank 7 is detached from the adapter mechanism 6, the lavage fluid in the specimen tank 7 can be poured out for testing.

[0050] By setting the valve mechanism 5 between the bronchoscope unit and the waste liquid collection unit, the specimen jar 7 is installed on the valve mechanism 5 by the adapter mechanism 6, and the lavage fluid can be pumped into the specimen jar 7 for sampling. The adapter mechanism 6 is detached from the valve mechanism 5, which facilitates inspection, and the bronchoscope unit and the waste liquid collection unit are directly connected for waste liquid collection without frequent pipeline disconnection and switching.

[0051] The specimen jar 7 is made of transparent material to observe the liquid level of the collected lavage fluid in the specimen jar 7. In addition, as shown in Figure 3 , the specimen jar 7 has a scale line 71 on the outer wall to determine whether the amount of collected lavage fluid in the specimen jar 7 reaches the required amount. Example 3

[0052] Please refer to Figure 7 and Figure 8 , on the basis of the foregoing examples, the valve mechanism 5 and the adapter mechanism 6 are explained in detail as follows:

[0053] The valve mechanism 5 includes a valve body 51, a blocking ring 53, a circular core 54, and a spring A 55. The valve body 51 is cylindrical, and a pair of insertion holes 52 extending along the length axis are formed on one side of the valve body 51. An inlet port 511 is provided on one side of the outer wall of the valve body 51, and an outlet port 512 is provided on the other side. The valve body 51 has a flow guide port 513 for connecting the two insertion holes 52. The inlet port 511 is connected to an inlet pipe 501, which is in communication with the suction tube 2. The outlet port 512 is connected to an outlet pipe 502, which is in communication with the suction tube 31.

[0054] The blocking ring 53 is fixed on the inner wall of the insertion hole 52 near the port. The circular core 54 is slidably installed in the insertion hole 52. The circular core 54 has a plurality of flow-through holes 541 distributed around the axis, and the distribution range of the circular core 54 corresponds to the position of the blocking ring 53. The spring A 55 is provided in the insertion hole 52. One end of the spring A 55 is fixed to the end face of the circular core 54, and the other end is fixed to the inner wall of the insertion hole 52. Under the elastic restraint of the spring A 55, the end face of the circular core 54 abuts against the blocking ring 53. At this time, the blocking ring 53 can cover and block all the flow-through holes 541 on the circular core 54. When the circular core 54 is pushed away from the blocking ring 53 to the limit position by the inlet insertion tube 61 or the outlet insertion tube 62, the circular core 54 covers and blocks the flow guide port 513.

[0055] The switching mechanism 6 comprises an inflow cannula 61, an outflow cannula 62, an L-shaped joint 64, a fastening cap 65 and a fastening end 66, the inflow cannula 61 and the outflow cannula 62 are fixedly penetrated in the L-shaped joint 64, and the inflow cannula 61 and the outflow cannula 62 are both in a bent shape, and a plurality of flow ports 63 are arranged in an annular array on the end of the inflow cannula 61 and the outflow cannula 62, the inflow cannula 61 and the outflow cannula 62 can be matched to pass through the corresponding blocking ring 53 and are inserted into the corresponding insertion hole 52, the fastening cap 65 is installed on one end of the L-shaped joint 64 and can be detachably installed on the valve body 51, and the fastening end 66 is arranged on the other end of the L-shaped joint 64, and the specimen jar 7 is detachably installed on the fastening end 66.

[0056] The inflow cannula 61 and the outflow cannula 62 are made of hard pipes, and the bending degree is consistent with the L-shaped joint 64, so that the situation of blockage caused by excessive bending of the soft pipes used as the inflow cannula 61 and the outflow cannula 62 in the prior art can be avoided, in addition, the inflow cannula 61 is longer than the outflow cannula 62, and the one end of the inflow cannula 61 and the one end of the outflow cannula 62 are parallel, when the specimen jar 7 is installed on the fastening end 66, the end of the inflow cannula 61 extends to the bottom of the specimen jar 7, and the end of the outflow cannula 62 is below the jar opening of the specimen jar 7, so that the liquid level of the lavage fluid in the specimen jar 7 can be guaranteed not to be sucked to the downstream before reaching the height where the end of the outflow cannula 62 is located, thereby ensuring that a certain amount of lavage fluid sample can be collected in the specimen jar 7, and secondly, the parallel ends of the inflow cannula 61 and the outflow cannula 62 are respectively matched to the corresponding two circular core members 54.

[0057] As shown in Figure 7 and Figure 8 , the fastening cap 65 and the valve body 51 are connected by screwing, the specimen jar 7 and the fastening end 66 are connected by screwing, the fastening cap 65 is rotatably sleeved on the L-shaped joint 64, so that the fastening cap 65 has the rotation ability relative to the L-shaped joint 64, and then the fastening cap 65 is screwed when the inflow cannula 61 and the outflow cannula 62 pass through the blocking ring 53 and are inserted into the insertion hole 52, so that the L-shaped joint 64, the inflow cannula 61 and the outflow cannula 62 cannot rotate with the fastening cap 65.

[0058] Specifically, the dismounting principle of the specimen jar 7 is as follows:

[0059] The port of the specimen jar 7 is clamped into the fastening end 66, and the outflow cannula 62 and the inflow cannula 61 are both inserted into the specimen jar 7, then the specimen jar 7 is held and twisted, the specimen jar 7 and the fastening end 66 are gradually locked by the thread cooperation between the specimen jar 7 and the fastening end 66, so that the specimen jar 7 is fixedly installed; when dismounting, the specimen jar 7 is held and twisted in the opposite direction, so that the specimen jar 7 can be dismounted from the fastening end 66.

[0060] Specifically, the inlet and outlet cannulas 61 and 62 are slightly extended to the outside of the fastening cap 65 at the flush end, and the disassembly principle of the adapter mechanism 6 is as follows:

[0061] First, the inlet and outlet cannulas 61 and 62 are aligned and inserted into the two blocking ring members 53, and the fastening cap 65 is slowly screwed onto the valve body 51. When the fastening cap 65 is gradually tightened, the inlet and outlet cannulas 61 and 62 pass through the two blocking ring members 53 at the same time and abut against the circular core members 54. As the fastening cap 65 continues to be screwed, the inlet and outlet cannulas 61 and 62 push the two circular core members 54 to move away from the blocking ring members 53, and the spring A 55 is compressed and stored. At this time, the circular core members 54 are separated from the blocking ring members 53, and the blocking ring members 53 do not block the flow-through holes 541.

[0062] Until the fastening cap 65 is completely tightened on the valve body 51, the inlet and outlet cannulas 61 and 62 push the two circular core members 54 to move to the limit position away from the blocking ring members 53. At this time, the two circular core members 54 move to the position corresponding to the flow guide port 513 and block the flow guide port 513 from both sides. The sampling path is formed by the inlet port 511, the upper insertion hole 52, the upper flow-through hole 541, the upper flow-through port 63, the inlet cannula 61, the specimen tank 7, the outlet cannula 62, the lower flow-through port 63, the lower flow-through hole 541, the lower insertion hole 52, and the outlet port 512, which facilitates sampling the lavage fluid into the specimen tank 7. The specific sampling flow direction is indicated by the arrows in Figure 8 .

[0063] When the adapter mechanism 6 is disassembled from the valve mechanism 5, the fastening cap 65 is unscrewed in reverse, which drives the inlet and outlet cannulas 61 and 62 to retreat. Under the elastic reset action of the spring A 55, the circular core members 54 are pushed to retreat synchronously. Until the inlet and outlet cannulas 61 and 62 are completely withdrawn from the two insertion holes 52, the disassembly of the adapter mechanism 6 is completed. As shown in Figure 11 , the two springs A 55 push the two circular core members 54 to abut against the blocking ring members 53 under the action of the elastic force, and the flow-through holes 541 are blocked by the blocking ring members 53. At the same time, when the two circular core members 54 are reset, the blocking of the flow guide port 513 is cancelled. The waste liquid suction path is formed by the inlet port 511, the upper insertion hole 52, the flow guide port 513, the lower insertion hole 52, and the outlet port 512, which facilitates the suction of waste liquid into the waste liquid collection tank 3 for collection. The specific flow direction is indicated by the arrows in Figure 11 .

[0064] Wherein, when the adapter mechanism 6 is detached from the valve mechanism 5, in the process of the inlet cannula 61 and the outlet cannula 62 being withdrawn outwardly, the two core members 54 can be pushed to keep abutting with the inlet cannula 61 and the outlet cannula 62 at the end by the elastic restoring action of the spring A55, on the one hand, the inlet cannula 61 and the outlet cannula 62 are still provided in the two blocking ring members 53, so that the blocking ring members 53 can be blocked, thereby avoiding the lavage liquid from leaking from the blocking ring members 53 during the detaching process, on the other hand, when the inlet cannula 61 and the outlet cannula 62 are completely withdrawn from the blocking ring members 53, the core members 54 abut with the blocking ring members 53, the flow-through hole 541 is blocked by the blocking ring members 53, and the central hole of the blocking ring members 53 is blocked by the core members 54, which also has the effect of preventing the lavage liquid from leaking, and the mechanism ensures that the suction system does not need to be stopped when the adapter mechanism 6 is detached.

[0065] In addition, as shown in Figure 6 , the fastening cap 65 is provided with anti-skid convex patterns 651 arrayed around its axis on the outer peripheral wall, which has the effect of anti-skid when the fastening cap 65 is screwed.

[0066] In addition, when the specimen jar 7 is installed on the side of the valve mechanism 5 by using the adapter mechanism 6, the valve mechanism 5, the adapter mechanism 6 and the specimen jar 7 are in an inverted L-shaped structure, and meanwhile, as shown in Figure 2 , when there is no lavage liquid collected in the specimen jar 7, the specimen jar 7 is kept in a nearly vertical state under the restraint of the inlet pipe 501 and the outlet pipe 502, and since the above-mentioned inverted L-shaped structure has the gravity center deviated to the side of the inlet cannula 61, as the amount of the lavage liquid collected in the specimen jar 7 becomes more and more, the specimen jar 7 will gradually tilt slightly to the side of the inlet cannula 61, and then, as shown in Figure 10 , there is a certain distance between the liquid surface of the lavage liquid in the specimen jar 7 and the outlet cannula 62.

[0067] In summary, the valve mechanism 5, the adapter mechanism 6 and the specimen jar 7 are designed in an inverted L-shaped structure, and the inlet cannula 61 is relatively closer to the side where the gravity center of the whole structure is located than the outlet cannula 62, which can avoid the specimen jar 7 from tilting excessively, and at the same time, can ensure that there is a certain distance between the liquid surface in the specimen jar 7 and the outlet cannula 62, thereby effectively avoiding the situation that the lavage liquid in the specimen jar 7 is sucked into the outlet cannula 62 due to the excessive tilting of the specimen jar 7, and the sampling amount is insufficient. Embodiment 4

[0068] Please refer to Figure 6 , Figure 8 and Figure 9 , the difference between this embodiment and embodiment 3 is that:

[0069] Both the inlet tube 61 and the outlet tube 62 are fixedly fitted with protruding rings 68. Both the inlet tube 61 and the outlet tube 62 are slidably fitted with sealing sleeves 67 for blocking the flow port 63. The two sealing sleeves 67 are respectively engaged with the corresponding retaining rings 53. Both the inlet tube 61 and the outlet tube 62 are fitted with springs B69. One end of the spring B69 is fixed to the protruding ring 68, and the other end is fixed to the sealing sleeve 67.

[0070] like Figure 12 As shown, when the inlet tube 61 and outlet tube 62 are not inserted into the retaining ring 53 and are inserted into the insertion hole 52, the spring B69, under its elastic support, pushes the sealing sleeve 67 to block the flow port 63 on the inlet tube 61 and outlet tube 62 respectively. When the transfer mechanism 6 is removed from the valve mechanism 5 after sampling, leakage of the sample from the specimen container 7 from the flow port 63 is prevented.

[0071] When the inlet tube 61 and outlet tube 62 are inserted into the insertion hole 52, under the blocking and pushing action of the retaining ring 53, the sealing sleeve 67 is gradually pushed towards the convex ring 68, and the spring B69 is elastically compressed and stores energy. At this time, as Figure 8 and Figure 9 As shown, the sealing sleeve 67 removes the obstruction of the flow port 63, ensuring that the flushing fluid can flow through the flow port 63.

[0072] In addition, the retaining ring 53 serves as a blocking component for the round core 54, a sealing component for the flow hole 541, and a blocking and pushing component for the sealing sleeve 67, achieving multiple functions at once; at the same time, the round core 54 serves as a sealing component for the central hole of the retaining ring 53 and a sealing component for the guide port 513, achieving two functions at once.

[0073] The sealing and unsealing of the flow guide port 513 by the round core component 54, the sealing and unsealing of the flow hole 541 by the retaining ring component 53, the sealing and unsealing of the central hole of the retaining ring component 53 by the round core component 54, and the sealing and unsealing of the flow port 63 by the sealing sleeve 67 all occur during the disassembly and assembly of the adapter mechanism 6, thus eliminating the need for additional adjustments to the sealing and unsealing at the corresponding locations, ensuring a more relaxed and convenient disassembly and assembly process.

[0074] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A bronchoscope alveolar lavage fluid collector applied to a bronchoscope alveolar lavage fluid suction system, the suction system comprising a bronchoscope unit, a waste fluid collection unit and a negative pressure suction device (4), and the bronchoscope unit, the collector, the waste fluid collection unit and the negative pressure suction device (4) are connected in series, characterized in that: the collector comprises a valve mechanism (5), an adapter mechanism (6) and a specimen jar (7); the specimen jar (7) is detachably mounted on the adapter mechanism (6), and the adapter mechanism (6) is detachably mounted on the valve mechanism (5); the valve mechanism (5) is communicated with the bronchoscope unit through an inlet pipe (501), and the valve mechanism (5) is communicated with the waste fluid collection unit through an outlet pipe (502); when the specimen jar (7) is mounted on the valve mechanism (5) through the adapter mechanism (6), alveolar lavage fluid can be collected into the specimen jar (7); when the adapter mechanism (6) is removed from the valve mechanism (5), the bronchoscope unit is directly communicated with the waste fluid collection unit through the valve mechanism (5); the valve mechanism (5) comprises a valve body (51), a blocking ring (53), a circular core (54) and a spring A (55); the valve body (51) is cylindrical, and a pair of insertion holes (52) extending along the length of the valve body (51) are formed on one side end face of the valve body (51); one side of the outer peripheral wall of the valve body (51) is provided with an inlet port (511), and the other side is provided with an outlet port (512), and the valve body (51) is provided with a flow guide port (513) for communicating the two insertion holes (52); the inlet port (511) is connected with the inlet pipe (501), and the outlet port (512) is communicated with the outlet pipe (502); the blocking ring (53) is fixed on the inner wall of each of the two insertion holes (52) near the port thereof, and the circular core (54) is slidably matched and installed in each of the two insertion holes (52), and a plurality of flow-through holes (541) are uniformly distributed around the axis of the circular core (54); the spring A (55) is arranged in each of the two insertion holes (52), one end of the spring A (55) is fixed to the end face of the circular core (54), and the other end is fixed to the inner end wall of the insertion hole (52); under the elastic restraint of the spring A (55), the end face of the circular core (54) abuts against the blocking ring (53), at this time, the blocking ring (53) can cover and block all the flow-through holes (541) on the circular core (54); when the circular core (54) is pushed away from the blocking ring (53) to the limit position by the inlet insertion tube (61) or the outlet insertion tube (62), the circular core (54) covers and blocks the flow guide port (513). 2.The bronchoscope alveolar lavage fluid collector according to claim 1, characterized in that: the adapter mechanism (6) comprises an inlet insertion tube (61), an outlet insertion tube (62), an L-shaped joint (64), a fastening cap (65) and a fastening end (66); the inlet insertion tube (61) and the outlet insertion tube (62) are fixed in the L-shaped joint (64) in a penetrating manner, and the inlet insertion tube (61) and the outlet insertion tube (62) are both bent. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The inflow cannula (61) is longer than the outflow cannula (62), and one end of the inflow cannula (61) is parallel to one end of the outflow cannula (62); The parallel ends of the inflow cannula (61) and the outflow cannula (62) are respectively correspondingly abutted and matched with the two circular core members (54), and a plurality of flow-through openings (63) are arranged in an annular array on the end portions of the inflow cannula (61) and the outflow cannula (62); The inflow cannula (61) and the outflow cannula (62) can be matched to pass through the corresponding blocking ring members (53) and are inserted into the corresponding insertion holes (52); The fastening cap (65) is installed on one end of the L-shaped joint (64) and can be detachably installed on the valve body (51); The fastening end (66) is provided on the other end of the L-shaped joint (64), and the specimen tank (7) can be detachably installed on the fastening end (66).

3. The bronchoscopy alveolar lavage fluid collector according to claim 2, characterized in that: The inflow cannula (61) and the outflow cannula (62) are each fixedly sleeved with a protruding ring member (68), and each is slidably sleeved with a blocking sleeve (67) for shielding and blocking the flow-through opening (63), and the two blocking sleeves (67) are respectively abutted and matched with the corresponding blocking ring members (53); The inflow cannula (61) and the outflow cannula (62) are each externally sleeved with a spring B (69), one end of the spring B (69) is correspondingly fixed with the protruding ring member (68), and the other end is correspondingly fixed with the blocking sleeve (67).

4. The bronchoscopy alveolar lavage fluid collector according to claim 2, characterized in that: The fastening cap (65) is rotatably sleeved on the L-shaped joint (64), and the fastening cap (65) and the valve body (51) are connected by screw threads; The specimen tank (7) and the fastening end (66) are connected by screw threads.

5. The bronchoscopy alveolar lavage fluid collector according to claim 1, characterized in that: The specimen tank (7) is made of transparent material, and the specimen tank (7) is provided with a scale line (71) on the outer wall.

6. The bronchoscopy alveolar lavage fluid collector according to claim 1, characterized in that: The bronchoscope unit comprises a sputum suction tube (2) and a handle seat (21); One end of the sputum suction tube (2) is installed in the handle seat (21) in a penetrating manner and is connected in communication with the inflow tube (501), and the other end of the sputum suction tube (2) is used for being inserted into the human body; The connecting line (22) in the bronchoscope unit is connected with the main machine (23).

7. The bronchoscopy alveolar lavage fluid collector according to claim 6, characterized in that: The waste liquid collecting unit comprises a waste liquid collecting tank (3), a liquid suction tube (31) and a suction tube (32); One end of the liquid suction tube (31) is connected in communication with the inflow end of the waste liquid collecting tank (3), and the other end is connected in communication with the outflow tube (502); One end of the suction tube (32) is connected in communication with the outflow end of the waste liquid collecting tank (3), and the other end is connected in communication with the negative pressure suction device (4). 8.The bronchoscope alveolar lavage fluid collector according to claim 7, characterized in that: The suction system further comprises a support frame (1) on which are sequentially fixed from top to bottom a frame stand A (12), a U-shaped clamping frame (11), a frame stand B (13) and a frame stand C (14); The main machine (23) is supported and placed on the frame stand A (12), the handle seat (21) is clamped on the U-shaped clamping frame (11), the negative pressure aspirator (4) is supported and placed on the frame stand B (13), and the waste liquid collection tank (3) is supported and placed on the frame stand C (14). 9.The bronchoscope alveolar lavage fluid collector according to claim 2, characterized in that: The outer peripheral wall of the fastening cap (65) is arrayed with anti-skid convex patterns (651) around its axis.

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