Ultra-pure dialysate sterile collector

Abstract

The utility model relates to the technical field of medical instruments, in particular to an ultra-pure dialysate sterile collector which comprises a sampling tube and a dialysate collecting bottle, a containing cavity used for containing dialysate is formed in the dialysate collecting bottle, the sampling tube is connected to the dialysate collecting bottle and communicated with the containing cavity in the dialysate collecting bottle, a first connector is further arranged at the end of the sampling tube, and a second connector is further arranged at the end of the sampling tube. The first connector is used for being connected with a liquid outlet connector of the dialysis machine; the liquid collection bottle comprises a bottle cap part and a bottle body part, the bottle cap part and the bottle body part are detachably connected and matched, the sampling tube is arranged on the bottle cap part, an exhaust port is further formed in the bottle cap part, and air in the bottle body part is exhausted to the external environment through the exhaust port. According to the sterile collector for the ultra-pure dialysate, the sampling tube is matched with the dialysate collecting bottle, so that the collected and detected dialysate can be stored in a relatively sealed environment, and air is effectively prevented from being contacted with the dialysate, so that the risk that the dialysate is polluted is reduced, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an ultrapure dialysis fluid aseptic collector. Background Art

[0002] Dialysate is the liquid that exchanges solutes with blood through diffusion on both sides of the dialysis membrane during hemodialysis. During hemodialysis, ultrapure dialysate (<0.1 cfu / ml) needs to be collected from the dialysis machine at regular intervals for bacterial culture to analyze whether the dialysate is contaminated.

[0003] In the prior art, the method for collecting dialysate is: after disconnecting the dialyzer and the circulation pipeline, the dialysate flowing out of the dialyzer outlet is directly collected by using a collection cup. However, the mouth of the collection cup used in the prior art is completely open, and during the collection process and the inspection process, the dialysate is completely exposed to the air, which increases the risk of the dialysate being contaminated, thereby affecting the accuracy of the test results.

[0004] Therefore, how to reduce the risk of dialysate contamination during dialysate collection operations is a technical problem that needs to be urgently solved in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide an ultrapure dialysate aseptic collector to address the problem that the mouth of the collection cup used clinically in the prior art is in a completely open state, and the dialysate is completely exposed to the air during the collection process and the inspection process, which increases the risk of the dialysate being contaminated, thereby affecting the accuracy of the test results.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A sterile collector for ultrapure dialysate comprises a sampling tube and a liquid collecting bottle, wherein the liquid collecting bottle is provided with a containing cavity for containing dialysate, the sampling tube is connected to the liquid collecting bottle, the sampling tube is communicated with the containing cavity in the liquid collecting bottle, a first joint is further provided at the end of the sampling tube, and the first joint is used to connect to a liquid outlet joint of a dialysis machine; the liquid collecting bottle comprises a bottle cap portion and a bottle body portion, the bottle cap portion and the bottle body portion are detachably connected, the sampling tube is provided on the bottle cap portion, and the bottle cap portion is also provided with an exhaust port, and the air in the bottle body portion is discharged to the external environment through the exhaust port.

[0008] Preferably, a filter membrane is further provided in the exhaust port, and the filter membrane is used to prevent impurities in the air from entering the bottle body.

[0009] Preferably, an exhaust pipe is further provided outside the exhaust port, and a sealing cover is provided on the exhaust pipe, and the sealing cover is used to close the opening of the exhaust pipe.

[0010] Preferably, the sealing cover and the exhaust pipe are in threaded connection and cooperation. The sealing cover includes a first cover body section and a second cover body section, and a through hole is provided on the second cover body section; when the second cover body section corresponds to the opening of the exhaust pipe, the exhaust pipe is in an open state, and the bottle body part communicates with the external environment; when the first cover body section corresponds to the opening of the exhaust pipe, the exhaust pipe is in a closed state, and a sealed environment is formed inside the bottle body part; a retaining ring is further provided at the opening of the sealing cover, and a stepped structure is provided at one end of the opening of the exhaust pipe, and threads adapted to the inner surface of the sealing cover are provided on the surface of the stepped structure, and the retaining ring cooperates with the stepped structure to prevent the separation between the sealing cover and the exhaust pipe.

[0011] Preferably, the bottle body part is made of a transparent material, and scale marks are provided on the surface of the bottle body part.

[0012] Preferably, the first joint is made of an elastic rubber material or an elastic silicone material, and the first joint is connected to the liquid outlet joint of the dialysis machine by its own elastic contraction force.

[0013] Preferably, a guiding section is provided at the end of the first joint, the guiding section is made of a hard material, and the diameter of the guiding section is larger than the outer diameter of the liquid outlet joint of the dialysis machine.

[0014] Preferably, a retaining piece is further provided on the guiding section, and the retaining piece extends outward from the surface of the guiding section to form an annular sheet structure.

[0015] Preferably, an insertion pipe is provided inside the first joint, the insertion pipe is arranged in a conical structure, the insertion pipe can be inserted into the liquid outlet joint of the dialysis machine, and an adsorption layer is further provided on the outer surface of the insertion pipe, and the adsorption layer is used to absorb the dialysis fluid accumulated in the liquid outlet joint of the dialysis machine, and / or, the adsorption layer is used to absorb the dialysis fluid accumulated in the first joint.

[0016] Preferably, a bridging pipe is further connected to the sampling pipe, and a second joint is provided at the end of the bridging pipe, and the second joint is used to connect the circulation pipeline of the dialysis machine.

[0017] Preferably, a three-way valve is further provided at the intersection of the sampling pipe and the bridging pipe, and the connection between the liquid collection bottle and the sampling pipe is a separable connection and cooperation.

[0018] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are:

[0019] 1. For a sterile collector for ultra-pure dialysate of the present utility model, the sampling tube is configured to cooperate with the liquid collection bottle, which can ensure that the dialysate collected and sent for inspection can be stored in a relatively sealed environment, effectively avoiding the contact between air and the dialysate, thereby reducing the risk of the dialysate being contaminated and improving the accuracy of the test results;

[0020] 2. For a sterile collector for ultra-pure dialysate of the present utility model, the first connector is made of elastic rubber material or elastic silica gel material, and the first connector is connected to the liquid outlet connector of the dialysis machine by its own elastic contraction force. With this structural arrangement, the present utility model can be connected and used with different models of dialysis machines, improving the versatility of the present utility model in actual use. Further, a guiding section is provided at the end of the first connector, and the guiding section is made of a hard material, and the diameter of the guiding section is larger than the outer diameter of the liquid outlet connector of the dialysis machine. With this structural arrangement, the convenience of connection between the first connector and the liquid outlet connector of the dialysis machine can be improved; more importantly, the setting of the guiding section can prevent the hands of medical staff from contacting the liquid outlet connector of the dialysis machine during the connection operation, thereby reducing the risk of the liquid outlet connector of the dialysis machine being contaminated;

[0021] 3. For a sterile collector for ultra-pure dialysate of the present utility model, a retaining piece is further provided on the guiding section, and the retaining piece extends outward from the surface of the guiding section to form an annular sheet structure. With this structural arrangement, the retaining piece can form a stable stress point on the guiding section, thereby further improving the convenience of connection between the first connector and the liquid outlet connector of the dialysis machine; moreover, the retaining piece can prevent the hands of medical staff from slipping towards the liquid outlet connector of the dialysis machine, thereby further reducing the risk of the liquid outlet connector of the dialysis machine being contaminated. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a sterile collector for ultra-pure dialysate;

[0023] Figure 2 is a schematic cross-sectional structure diagram of the first connector in a sterile collector for ultra-pure dialysate;

[0024] Figure 3 is a schematic cross-sectional structure diagram of the cooperation between the exhaust pipe and the sealing cover in a sterile collector for ultra-pure dialysate.

[0025] Markings in the figure: 1 - sampling tube, 2 - liquid collection bottle, 3 - first joint, 4 - bottle cap part, 5 - bottle body part, 6 - exhaust port, 7 - filter membrane, 8 - exhaust pipe, 9 - sealing cover, 10 - first cover body section, 11 - second cover body section, 12 - through hole, 13 - retaining ring, 14 - step structure, 15 - guiding section, 16 - retaining piece, 17 - bridging pipe, 18 - second joint, 19 - three-way valve, 20 - insertion pipe, 21 - adsorption layer. Detailed implementation mode

[0026] The following will describe the present utility model in detail with reference to the accompanying drawings.

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model to be protected, but only represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0029] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.

[0030] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, terms such as "first" and "second" are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0032] Embodiment 1

[0033] As Figures 1 to 3As shown in the figure, a sterile collector for ultra-pure dialysate according to the present utility model includes a sampling tube 1 and a liquid collection bottle 2. An accommodation cavity for receiving the dialysate is provided inside the liquid collection bottle 2. The sampling tube 1 is connected to the liquid collection bottle 2, and the sampling tube 1 communicates with the accommodation cavity inside the liquid collection bottle 2. A first connector 3 is further provided at the end of the sampling tube 1, and the first connector 3 is used to connect to the liquid outlet connector of the dialysis machine. The liquid collection bottle 2 includes a bottle cap part 4 and a bottle body part 5. The connection between the bottle cap part 4 and the bottle body part 5 is a separable connection fit. The sampling tube 1 is provided on the bottle cap part 4. An exhaust port 6 is further provided on the bottle cap part 4. The air inside the bottle body part 5 is discharged to the external environment through the exhaust port 6.

[0034] By using the sterile collector for ultra-pure dialysate according to the present utility model, with the cooperation of the sampling tube 1 and the liquid collection bottle 2, it can ensure that the collected and sent-for-inspection dialysate can be stored in a relatively sealed environment, effectively avoiding the contact between air and dialysate, thereby reducing the risk of dialysate contamination and improving the accuracy of the detection results.

[0035] Specifically, in this embodiment, before collecting the dialysate, the operation of the dialysis machine needs to be stopped. After the dialysis machine stops rotating, the connection between it and the circulation pipeline is disconnected. Then, the first connector 3 is connected to the liquid outlet connector of the dialysis machine, and the dialysis machine is restarted. At this time, the dialysate can flow into the liquid collection bottle 2 through the sampling tube 1. After the dialysate collection is completed, the dialysis machine is stopped again, the connection between the first connector 3 and the liquid outlet connector of the dialysis machine is disconnected, and after reconnecting the dialysis machine and the circulation pipeline, the dialysis machine can be restarted.

[0036] As a preferred implementation, on the basis of the above method, further, a filter membrane 7 is provided inside the exhaust port 6, and the filter membrane 7 is used to block impurities in the air from entering the bottle body part 5. With this structural setting, the risk of dialysate contamination is further reduced, and the accuracy of the detection results is improved.

[0037] Embodiment 2

[0038] As Figure 3 shown, on the basis of the above method, for a sterile collector for ultra-pure dialysate according to the present utility model, further, an exhaust pipe 8 is provided outside the exhaust port 6, and a sealing cap 9 is provided on the exhaust pipe 8, and the sealing cap 9 is used to seal the opening of the exhaust pipe 8.

[0039] In this embodiment, during the collection of dialysis fluid, the sealing cap 9 provided on the exhaust pipe 8 is removed, and the bottle body portion 5 is communicated with the external environment, ensuring the smoothness of dialysis fluid collection; after the dialysis fluid collection is completed, the exhaust pipe 8 is sealed with the sealing cap 9, further preventing impurities in the air from entering the bottle body portion 5, reducing the risk of dialysis fluid contamination, and improving the accuracy of the detection result.

[0040] As a preferred embodiment, on the basis of the above method, further, the sealing cap 9 and the exhaust pipe 8 are in threaded connection and cooperation. The sealing cap 9 includes a first cap body section 10 and a second cap body section 11, and a through hole 12 is provided on the second cap body section 11; when the second cap body section 11 corresponds to the opening of the exhaust pipe 8, the exhaust pipe 8 is in an open state, and the bottle body portion 5 is communicated with the external environment; when the first cap body section 10 corresponds to the opening of the exhaust pipe 8, the exhaust pipe 8 is in a closed state, and a sealed environment is formed inside the bottle body portion 5; a retaining ring 13 is further provided at the opening of the sealing cap 9, and a stepped structure 14 is provided at one end of the opening of the exhaust pipe 8. Threads adapted to the inner surface of the sealing cap 9 are provided on the surface of the stepped structure 14, and the retaining ring 13 cooperates with the stepped structure 14 to prevent the sealing cap 9 from separating from the exhaust pipe 8.

[0041] Specifically, in this embodiment, clockwise rotation of the sealing cap 9 can make the first cap body section 10 correspond to the opening of the exhaust pipe 8, and the exhaust pipe 8 is in a closed state; counterclockwise rotation of the sealing cap 9 can make the second cap body section 11 correspond to the opening of the exhaust pipe 8, and the exhaust pipe 8 is in an open state; the cooperation of the retaining ring 13 provided at the opening of the sealing cap 9 and the stepped structure 14 provided at one end of the opening of the exhaust pipe 8 can prevent the sealing cap 9 from separating from the exhaust pipe 8; with this structural arrangement, the closing / opening operation of the exhaust pipe 8 is more convenient, improving the practicality of the present utility model in actual use.

[0042] As a preferred embodiment, on the basis of the above method, further, the bottle body portion 5 is made of a transparent material, and scale markings are provided on the surface of the bottle body portion 5. With this structural arrangement, it is convenient for medical staff to observe whether the amount of collected dialysis fluid meets the standard, further improving the practicality of the present utility model in actual use.

[0043] Embodiment 3

[0044] Such as Figure 2As shown in the figure, for a sterile collector of ultra-pure dialysate according to the present utility model, on the basis of the above method, further, the first joint 3 is made of elastic rubber material or elastic silica gel material, and the first joint 3 is connected to the liquid outlet joint of the dialysis machine by its own elastic contraction force. With this structural arrangement, the present utility model can be connected and used with dialysis machines of different models, improving the versatility of the present utility model in actual use.

[0045] It should be noted that when the dialysis machine is in operation, the pressure generated by the dialysate is small, and the time required to collect the dialysate is only a few minutes. The first joint 3 is connected to the liquid outlet joint of the dialysis machine by its own elastic contraction force, and the risk of disconnection is small. Therefore, the structure of the first joint 3 in this embodiment can be fully applied clinically.

[0046] As a preferred embodiment, on the basis of the above method, further, a guiding section 15 is provided at the end of the first joint 3. The guiding section 15 is made of a hard material, and the diameter of the guiding section 15 is larger than the outer diameter of the liquid outlet joint of the dialysis machine.

[0047] In this embodiment, the setting of the guiding section 15 can improve the convenience of connection between the first joint 3 and the liquid outlet joint of the dialysis machine; more importantly, the setting of the guiding section 15 can prevent the hands of medical staff from contacting the liquid outlet joint of the dialysis machine during the connection operation, thereby reducing the risk of contamination of the liquid outlet joint of the dialysis machine.

[0048] As a preferred embodiment, on the basis of the above method, further, a retaining piece 16 is provided on the guiding section 15. The retaining piece 16 extends outward from the surface of the guiding section 15 to form an annular sheet structure.

[0049] Specifically, in this embodiment, the setting of the retaining piece 16 can form a stable stress point on the guiding section 15, thereby further improving the convenience of connection between the first joint 3 and the liquid outlet joint of the dialysis machine; and, the retaining piece 16 can prevent the hands of medical staff from slipping towards the liquid outlet joint of the dialysis machine, thereby further reducing the risk of contamination of the liquid outlet joint of the dialysis machine.

[0050] As a preferred embodiment, on the basis of the above method, further, an insertion pipe 20 is provided inside the first joint 3. The insertion pipe 20 is arranged in a conical structure. The insertion pipe 20 can be inserted into the liquid outlet joint of the dialysis machine, and an adsorption layer 21 is further provided on the outer surface of the insertion pipe 20. The adsorption layer 21 is used to absorb the dialysate accumulated in the liquid outlet joint of the dialysis machine, and / or, the adsorption layer is used to absorb the dialysate accumulated in the first joint 3.

[0051] In this embodiment of the setting, the insertion tube 20 is arranged inside the first connector 3. After the first connector 3 is connected to the liquid outlet connector of the dialysis machine, the insertion tube 20 can be inserted into the cavity of the liquid outlet connector of the dialysis machine, thus improving the tightness of the connection between the two. Further, in this embodiment, the insertion tube 20 is arranged to be inserted into the liquid outlet connector of the dialysis machine, which can occupy the flow channel space of the liquid outlet of the dialysis machine. In this way, the dialysate will not remain in the flow channel of the liquid outlet of the dialysis machine. On the one hand, it avoids the dialysate remaining in the flow channel of the liquid outlet of the dialysis machine from leaking into the external environment and causing pollution after the connection between the first connector 3 and the liquid outlet connector of the dialysis machine is disconnected. On the other hand, it also reduces the risk of bacteria breeding in the flow channel of the liquid outlet of the dialysis machine. Furthermore, the insertion tube 20 is arranged in a conical structure, and the insertion tube 20 can be inserted into the liquid outlet connectors of different specifications of dialysis machines, thus improving the versatility of this new type in actual use;

[0052] In another embodiment, an adsorption layer 21 is further arranged on the outer surface of the insertion tube 20. The adsorption layer 21 is used to absorb the dialysate accumulated in the liquid outlet connector of the dialysis machine, and / or, the adsorption layer is used to absorb the dialysate accumulated in the first connector 3.

[0053] In this embodiment, the adsorption layer 21 is made of medical sponge; the arrangement of the adsorption layer 21 can absorb the residual dialysate in the liquid outlet connector of the dialysis machine, and / or, the adsorption layer absorbs the residual dialysate in the first connector 3. It further avoids the dialysate from leaking into the external environment and causing pollution after the connection between the first connector 3 and the liquid outlet connector of the dialysis machine is disconnected, and also further reduces the risk of bacteria breeding in the flow channel of the liquid outlet of the dialysis machine; moreover, arranging the adsorption layer 21 on the outer surface of the insertion tube 20 can also reduce the wear caused by the insertion tube 20 to the flow channel of the liquid outlet of the dialysis machine, improving the practicability of this new type.

[0054] Embodiment 4

[0055] As Figure 1 shown, in the ultra-pure dialysate aseptic sampler of the present utility model, on the basis of the above method, further, a bridge connection tube 17 is further connected to the sampling tube 1. A second connector 18 is arranged at the end of the bridge connection tube 17. The second connector 18 is used to connect the circulation pipeline of the dialysis machine.

[0056] With this structural arrangement, it can avoid the destruction of the circulation path formed between the dialysis machine and the circulation pipeline. During the dialysate sampling, the treatment of the patient can continue, thus further improving the practicability of the present utility model in actual use.

[0057] As a preferred embodiment, on the basis of the above manner, further, a three-way valve 19 is further provided at the joint of the sampling tube 1 and the bridging tube 17, and the connection between the liquid collecting bottle 2 and the sampling tube 1 is a separable connection fit.

[0058] With this structural arrangement, the sampling tube 1 and the bridging tube 17 can form a circulation path for the dialysate together with the dialysis machine and the circulation pipeline. In actual use, the opening / closing of the sampling tube 1 and the bridging tube 17 is controlled by the three-way valve 19 to complete the sampling operation of the dialysate during the dialysis treatment of the patient, avoiding repeated start / stop of the dialysis machine and repeated tube disconnection / connection operations during the treatment, thereby further improving the practicability of the present invention in actual use.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sterile collector for ultrapure dialysate, characterized in that: It includes a sampling tube and a liquid collecting bottle, wherein the liquid collecting bottle is provided with a containing cavity for containing dialysate, the sampling tube is connected to the liquid collecting bottle, the sampling tube is communicated with the containing cavity in the liquid collecting bottle, and a first joint is also provided at the end of the sampling tube, and the first joint is used to connect to the liquid outlet joint of the dialysis machine; the liquid collecting bottle includes a bottle cap part and a bottle body part, the bottle cap part and the bottle body part are detachably connected, the sampling tube is arranged on the bottle cap part, and the bottle cap part is also provided with an exhaust port, and the air in the bottle body part is discharged to the external environment through the exhaust port.

2. The ultrapure dialysate sterile collector according to claim 1, characterized in that: A filter membrane is also arranged in the exhaust port, and the filter membrane is used to prevent impurities in the air from entering the bottle body.

3. The ultrapure dialysate sterile collector according to claim 2, characterized in that: An exhaust pipe is also arranged outside the exhaust port, and a sealing cover is arranged on the exhaust pipe, and the sealing cover is used to close the opening of the exhaust pipe.

4. The ultrapure dialysate sterile collector according to claim 3, characterized in that: The sealing cover and the exhaust pipe are threadedly connected, and the sealing cover includes a first cover body section and a second cover body section, and the second cover body section is provided with a through hole; when the second cover body section corresponds to the opening of the exhaust pipe, the exhaust pipe is in an open state, and the bottle body is connected with the external environment; when the first cover body section corresponds to the opening of the exhaust pipe, the exhaust pipe is in a closed state, and a closed environment is formed in the bottle body; a retaining ring is also provided at the opening of the sealing cover, and a step structure is provided at one end of the opening of the exhaust pipe, and a thread matching the inner surface of the sealing cover is provided on the surface of the step structure, and the retaining ring cooperates with the step structure to avoid separation between the sealing cover and the exhaust pipe.

5. The ultrapure dialysate sterile collector according to claim 1, characterized in that: The bottle body is made of transparent material, and a scale mark is arranged on the surface of the bottle body.

6. The ultrapure dialysate sterile collector according to any one of claims 1 to 5, characterized in that: The first joint is made of elastic rubber material, or elastic silicone material, and is connected to the liquid outlet joint of the dialysis machine by using its own elastic contraction force; a guide section is provided at the end of the first joint, and the guide section is made of hard material, and the diameter of the guide section is larger than the outer diameter of the liquid outlet joint of the dialysis machine.

7. The ultrapure dialysate sterile collector according to claim 6, characterized in that: The guide section is also provided with a blocking piece, which extends outward from the surface of the guide section to form an annular sheet structure.

8. The ultrapure dialysate sterile collector according to claim 7, characterized in that: A plug-in tube is arranged inside the first connector, and the plug-in tube is arranged in a conical structure. The plug-in tube can be inserted into the liquid outlet connector of the dialysis machine. An adsorption layer is also arranged on the outer surface of the plug-in tube, and the adsorption layer is used to absorb the dialysate accumulated in the liquid outlet connector of the dialysis machine, and / or the adsorption layer is used to absorb the dialysate accumulated in the first connector.

9. The ultrapure dialysate sterile collector according to claim 8, characterized in that: The sampling tube is also connected to a bridge tube, and the end of the bridge tube is provided with a second connector, and the second connector is used to connect to the circulation pipeline of the dialysis machine.

10. The ultrapure dialysate sterile collector according to claim 9, characterized in that: A three-way valve is also provided at the junction of the sampling tube and the bridge tube, and the liquid collecting bottle and the sampling tube are detachably connected.

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