Automatic dialysis waste liquid collecting device

Abstract

The utility model discloses an automatic dialysis waste liquid collecting device, which relates to the technical field of medical equipment, aims to solve the problems of manpower consumption and inaccurate sampling of the existing sampling mode, and comprises a shell, a waste liquid pump arranged on the shell and connected with a waste liquid pipe, a liquid outlet of the waste liquid pipe positioned in the shell, and a rotating device arranged on the shell, the rotating device is provided with a plurality of stations used for containing collecting bottles, the stations are symmetrically distributed with the central axis of the rotating device as the center and located below a liquid outlet of the waste liquid pipe, and the vertical distance between the central axis of the liquid outlet of the waste liquid pipe and the central axis of the rotating device and the vertical distance between the central axis of any station and the central axis of the rotating device are consistent. The timing device is used for calculating the running time of the rotating device when any collecting bottle rotates to the position below the liquid outlet of the waste liquid pipe and the staying time of the collecting bottle staying below the liquid outlet of the waste liquid pipe, the control device is in signal connection with the waste liquid pump, the rotating device and the timing device, and waste liquid in multiple time periods can be automatically collected in a timed and quantitative mode.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and more specifically, to an automatic dialysis waste fluid collection device. Background Technology

[0002] In the field of hemodialysis, detecting the toxin and protein content in dialysis waste fluid can effectively assess the clearance effect of dialysis treatment and evaluate the performance of dialyzers. When collecting dialysis waste fluid, it is necessary not only to collect it throughout the entire treatment process but also to collect it at different time points in order to detect the total solute content and its changes during treatment. Therefore, timely and accurate collection of dialysis waste fluid according to researchers' needs is crucial.

[0003] The most traditional method for testing is to collect dialysis waste fluid from the entire treatment process, approximately 120L, which is inconvenient to operate. CN204766764U discloses a sample collection device for hemodialysis waste fluid, which can continuously collect small doses of dialysis waste fluid samples at a uniform rate. However, there is still no convenient device for collecting waste fluid at different time periods. Existing methods mainly rely on manual operation, periodically opening and closing valves on the dialysis waste fluid pipeline to collect the waste fluid into sample bottles, and then sending it to the laboratory for testing. This requires a lot of manpower, and the sampling time and frequency are difficult to control precisely, which may affect the accuracy of the test results.

[0004] Therefore, how to solve the problems of existing sampling methods being labor-intensive and inaccurate is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an automatic dialysis waste fluid collection device that can automatically collect waste fluid from multiple time periods at regular intervals and in quantitative amounts, avoiding the inaccuracy caused by manual operation, improving the accuracy of waste fluid collection, and reducing labor intensity.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic dialysis waste collection device includes:

[0008] case;

[0009] Waste liquid pump, located in the housing, is connected to a waste liquid pipe, and the outlet of the waste liquid pipe is located inside the housing;

[0010] A rotating device is located on the housing. The rotating device has several stations for placing collection bottles. The stations are centrally symmetrical about the central axis of the rotating device. The stations are located below the outlet of the waste liquid pipe. The vertical distance between the outlet of the waste liquid pipe and the central axis of any station and the central axis of the rotating device is the same.

[0011] A timing device is provided on the rotating device. The timing device is used to calculate the running time of the rotating device when any collection bottle rotates to below the outlet of the waste liquid pipe, and the dwell time of the collection bottle below the outlet of the waste liquid pipe.

[0012] The control device is connected to the waste liquid pump, the rotating device, and the timing device via signals.

[0013] Preferably, the rotating device includes a rotating shaft and a driving device for driving the rotating shaft to rotate, and also includes a support frame disposed on the rotating shaft, wherein a plurality of elastic clamps for clamping the collection bottle are evenly arranged in the circumferential direction of the support frame.

[0014] Preferably, the drive device is located at the top or bottom of the housing.

[0015] Preferably, the waste liquid pump includes a motor, a rotor, and a housing. The motor is located at the top inside the housing, the output shaft of the motor is connected to the rotor, the rotor is rotatably located on the outer end face of the housing, the housing is located on the outer periphery of the rotor, and the drive device is located at the bottom of the motor.

[0016] Preferably, the top of the housing is provided with a removable top cover, and the waste liquid pump and waste liquid pipe are located on the top cover.

[0017] Preferably, the outlet of the waste liquid pipe is fixed to the top cover by an outlet cap.

[0018] Preferably, the housing has a side opening in the circumferential direction, and the side opening has an openable and closable door.

[0019] Preferably, the rotating device includes a rotating base with several elastic slots for placing collection bottles.

[0020] Preferably, the waste liquid pipe is equipped with a flow sensor for real-time detection of the waste liquid flow rate in the pipe, and the flow sensor is connected to the control device.

[0021] Preferably, the liquid outlet is equipped with a shut-off valve that is connected to the control device for signal transmission.

[0022] The automatic dialysis waste fluid collection device provided by this utility model includes a housing, a waste fluid pump, a rotating device, a timing device, and a control device. Specifically, the control device is signal-connected to the waste fluid pump, the rotating device, and the timing device. The control device adjusts the operating status of the waste fluid pump and the rotating device according to the signal transmitted by the timing device. The waste fluid pump and the rotating device are located in the housing. The waste fluid pump is connected to a waste fluid pipe, and the outlet of the waste fluid pipe is located inside the housing, allowing the waste fluid to be transported into the housing. The rotating device has several stations for placing collection bottles. These stations are centrally symmetrically distributed about the central axis of the rotating device, and are located below the outlet of the waste fluid pipe. The vertical distance between the outlet of the waste liquid pipe and the central axis of any station and the central axis of the rotating device is the same. That is to say, by rotating the rotating device, the collection bottle at any station can be rotated to be directly below the outlet of the waste liquid pipe, so that the waste liquid flowing out of the outlet can enter the collection bottle. The timing device is located on the rotating device. The timing device is used to calculate the running time of the rotating device when any collection bottle is rotated to be below the outlet of the waste liquid pipe, as well as the dwell time of the collection bottle below the outlet of the waste liquid pipe. The running time and dwell time of the rotating device are fed back to the control device through the timing device, so that the control device controls the operating status of the rotating device.

[0023] Initially, one of the empty collection bottles to be sampled is aligned with the outlet. The waste liquid pump is controlled by the control device, and the timing device starts timing simultaneously. The waste liquid pump draws waste liquid into the collection bottle through the waste liquid pipe. When the real-time time calculated by the timing device is the same as the preset dwell time, it indicates that the collection bottle has collected enough waste liquid. At this time, the waste liquid pump stops running, and the rotating device starts running, and the timing device restarts timing. The rotating device drives the collection bottle to rotate, switching to the next empty collection bottle to be sampled. When the real-time time calculated by the timing device is the same as the preset running time, it indicates that the next empty collection bottle to be sampled is aligned with the outlet. At this time, the rotating device stops running, and the waste liquid pump starts running, and the timing device restarts timing. This cycle repeats to achieve sampling. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the automatic dialysis waste fluid collection device provided by this utility model.

[0026] Figure 2This is a partial structural schematic diagram of the automatic dialysis waste fluid collection device provided by this utility model;

[0027] Figure 3 This is a partial structural schematic diagram of the automatic dialysis waste fluid collection device provided by this utility model;

[0028] Figure 4 This is a cross-sectional view of the automatic dialysis waste collection device provided by this utility model.

[0029] Figure label:

[0030] 10-Collection bottle;

[0031] 1-Shell;

[0032] 2-Waste liquid pump, 21-Motor, 22-Rotor, 23-Casing;

[0033] 3- Waste liquid pipe;

[0034] 4-Rotating device, 41-Rotating shaft, 42-Drive device, 43-Support frame, 44-Elastic clamp;

[0035] 5-Exit cover. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] It should be noted that the directional terms such as "up" and "down" in the following text are defined based on the accompanying drawings in the instruction manual.

[0039] The core of this invention is to provide an automatic dialysis waste fluid collection device that can automatically collect waste fluid from multiple time periods at regular intervals and in quantitative amounts, avoiding inaccuracies caused by manual operation, improving the accuracy of waste fluid collection, and reducing labor intensity.

[0040] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 An automatic dialysis waste collection device includes a housing 1, a waste pump 2, a rotating device 4, a timing device, and a control device.

[0041] Specifically, the control device is signal-connected to the waste liquid pump 2, the rotating device 4, and the timing device. The control device adjusts the operating status of the waste liquid pump 2 and the rotating device 4 according to the signal transmitted by the timing device. The waste liquid pump 2 and the rotating device 4 are located in the housing 1. The waste liquid pump 2 is connected to the waste liquid pipe 3, and the outlet of the waste liquid pipe 3 is located inside the housing 1, which allows the waste liquid to be transported into the housing 1. The rotating device 4 has several stations for placing the collection bottles 10. The stations are centrally symmetrically distributed about the central axis of the rotating device 4. The stations are located below the outlet of the waste liquid pipe 3, and the central axis of the outlet of the waste liquid pipe 3 and any station is perpendicular to the rotating device 4. The vertical distance between the central axes is consistent, that is, by rotating the rotating device 4, the collection bottle 10 at any station can be rotated to be directly below the outlet of the waste liquid pipe 3 so that the waste liquid flowing out of the outlet can enter the collection bottle 10. The timing device is set on the rotating device 4. The timing device is used to calculate the running time of the rotating device 4 when any collection bottle 10 is rotated to be below the outlet of the waste liquid pipe 3, and the dwell time of the collection bottle 10 below the outlet of the waste liquid pipe 3. The running time and dwell time of the rotating device 4 are fed back to the control device through the timing device, so that the operating state of the rotating device 4 can be controlled by the control device.

[0042] In the initial state, one of the empty collection bottles 10 to be sampled is aligned with the liquid outlet. The waste liquid pump 2 is controlled to run by the control device, and the timing device is started simultaneously. The waste liquid pump 2 draws waste liquid into the collection bottle 10 through the waste liquid pipe 3. When the real-time time calculated by the timing device is the same as the preset dwell time, it indicates that the waste liquid collected in the collection bottle 10 has reached the required amount. At this time, the waste liquid pump 2 is stopped, and the rotating device 4 is started and the timing device is restarted. The rotating device 4 drives the collection bottle 10 to rotate to switch to the next empty collection bottle 10 to be sampled. When the real-time time calculated by the timing device is the same as the preset running time, it indicates that the next empty collection bottle 10 to be sampled is aligned with the liquid outlet. At this time, the rotating device 4 is stopped, and the waste liquid pump 2 is started and the timing device is restarted. This cycle is repeated to achieve sampling.

[0043] The automatic dialysis waste liquid collection device set up in the above manner integrates flow control and waste liquid collection into one device, which can collect waste liquid at different time intervals and in different quantities to realize the automation of waste liquid collection, and the collected waste liquids do not contaminate each other.

[0044] In one embodiment, the rotating device 4 includes a rotating shaft 41 and a driving device 42 for driving the rotating shaft 41 to rotate, and also includes a support frame 43 disposed on the rotating shaft 41. The support frame 43 is uniformly provided with a plurality of elastic clamps 44 for clamping the collection bottle 10 in the circumferential direction.

[0045] It should be noted that when using it, first, the empty collection bottle 10 is clamped onto the elastic clamp 44. The elastic force of the elastic clamp 44 is sufficient to clamp the collection bottle 10 filled with waste liquid. After each elastic clamp 44 clamps the collection bottle 10, the drive device 42 is controlled by the control device to drive the rotating shaft 41 and the support frame 43 on the rotating shaft 41 to rotate synchronously, thereby driving the collection bottle 10 clamped by the elastic clamp 44 on the support frame 43 to rotate synchronously.

[0046] Furthermore, the collection bottle 10 is secured to the elastic clamp 44, and the collection bottle 10 is marked with graduation lines to indicate the optimal fixing position. This device can adjust the number and size of the collection bottles 10 according to actual needs, adapting to the waste liquid collection requirements of different production environments, thus improving the flexibility and practicality of the device.

[0047] The circumference of the central axis of the collection bottle 10 clamped on the elastic clamp 44 is on the same circumference as the central axis of the liquid outlet, so as to achieve the correspondence between the liquid outlet and the collection bottle 10 and avoid leakage problems caused by the misalignment of the liquid outlet and the collection bottle 10. Furthermore, the rotating shaft 41, the support frame 43, and the elastic clamp 44 can be set as an integral structure or as a separate structure, without limitation.

[0048] In the above case, the drive device 42 is located at the top or bottom of the housing 1.

[0049] In one feasible embodiment, the drive device 42 is disposed at the bottom of the housing 1, the output end of the drive device 42 is disposed facing the top of the housing 1, the output end of the drive device 42 is connected to the rotating shaft 41, and the upper end of the rotating shaft 41 is clearance-fitted with the top of the housing 1 to avoid the housing 1 interfering with the rotational movement of the rotating shaft 41.

[0050] In another feasible embodiment, the drive device 42 is disposed at the top of the inside of the housing 1, the output end of the drive device 42 is disposed facing the bottom of the housing 1, the output end of the drive device 42 is connected to the rotating shaft 41, and the lower end of the rotating shaft 41 is clearance-fitted with the bottom of the inside of the housing 1 to avoid the housing 1 interfering with the rotational movement of the rotating shaft 41.

[0051] Furthermore, the waste liquid pump 2 includes a motor 21, a rotor 22 and a housing 23. The motor 21 is located at the top inside the housing 1. The output shaft of the motor 21 is connected to the rotor 22. The rotor 22 is rotatably located on the outer end face of the housing 1. The housing 23 is located on the outer periphery of the rotor 22. The drive device 42 is located at the bottom of the motor 21.

[0052] It should be noted that the device is connected to the dialysis waste liquid pipe 3 at the back of the dialysis machine via the waste liquid pipe 3. During operation, the motor 21 is controlled by the control device to drive the rotor 22 to rotate synchronously. The outer casing 23 protects the rotor 22. The rotation of the rotor 22 provides power so that the waste liquid pipe 3 draws the waste liquid from the dialysis machine into the collection bottle 10. In this case, the drive device 42 can be directly fixed to the lower end of the motor 21; the drive device 42 can be the motor 21, and there are no restrictions on its use.

[0053] In the above embodiment, the top of the housing 1 is provided with a detachable top cover, the waste liquid pump 2 and the waste liquid pipe 3 are provided on the top cover, and the outlet of the waste liquid pipe 3 is fixed to the top cover through the outlet cover 5.

[0054] It is understandable that a handle can be provided on the top cover to facilitate disassembly. To improve the safety of the top cover during use, a locking device can be provided between the top cover and the housing 1 so that the top cover can be locked and fixed to the housing 1. There are no restrictions on the structure and specific setting of the locking device. When it is necessary to install or remove the collection bottle 10, the locking device should be unlocked first, and then the top cover can be removed directly through the handle, thereby realizing the installation and removal of the collection bottle 10.

[0055] The waste liquid pipe 3 and the outlet cap 5 can be integrated or detachable. If detachable, the waste liquid pipe 3 is inserted into the outlet cap 5, resulting in lower replacement costs. The outlet cap 5 and the top cap can also be integrated or detachable. If integrated, the structure is simpler and easier to use. If detachable, a snap-fit ​​structure needs to be provided on the outlet cap 5 and the top cap to achieve snap-fit ​​positioning between the outlet cap 5 and the top cap.

[0056] In the above embodiments, a side opening is made in the circumferential direction of the housing 1, and an openable door is provided at the side opening. The door is equipped with a handle and a locking device. By opening and closing the door, the collection bottle 10 can be installed and removed. The operation is simple and convenient for subsequent testing.

[0057] This application does not restrict the specific methods of installing and removing the collection bottle 10.

[0058] In another embodiment, the rotating device 4 includes a rotating base with a plurality of elastic slots for placing the collection bottle 10.

[0059] It should be noted that the rotating base can be installed at the bottom of the housing 1. The rotating base has elastic slots for inserting the collection bottle 10. The elastic slots are arranged circumferentially on the rotating base, so that the central axis of multiple elastic slots is on the same circumference as the central axis of the liquid outlet. The collection bottle 10 can be inserted and removed into the elastic slots. The depth of the elastic slots can be half the height of the collection bottle 10, and there is no limitation on this, as long as the collection bottle 10 can be fixed in the elastic slots when the rotating base rotates, and no waste liquid leakage occurs when the collection bottle 10 is removed.

[0060] Furthermore, the collection bottle 10 is secured in an elastic slot, allowing the number and size of the collection bottles 10 to be adjusted according to actual needs, adapting to the waste liquid collection requirements of different production environments, thus improving the flexibility and practicality of the device.

[0061] In a preferred embodiment, the waste liquid pipe 3 is equipped with a flow sensor for real-time detection of the flow rate of waste liquid in the pipe, and the flow sensor is connected to the control device.

[0062] It is understandable that by adding a flow sensor to the waste liquid pipe 3, the flow rate in the pipe can be detected in real time, and the real-time flow information can be fed back to the control device. The control device controls the speed of the waste liquid pump 2, thereby adjusting the flow rate of the waste liquid in the pipe. The waste liquid pump 2 itself can adjust the flow rate, and the additional flow sensor plays a dual role in ensuring safety.

[0063] In a preferred embodiment, the liquid outlet is equipped with a shut-off valve that is connected to the control device via a signal.

[0064] It should be noted that, to avoid the influence of residual waste liquid in waste liquid pipe 3 on the amount of waste liquid collected in collection bottle 10, a shut-off valve is directly installed at the outlet of waste liquid pipe 3 to ensure the accuracy of waste liquid collection. When the last collection bottle 10 has been collected, the control device controls waste liquid pump 2 to stop running.

[0065] In summary, the automatic dialysis waste fluid collection device provided by this invention can be used in the fields of hemodialysis and environmental engineering technology to automatically collect waste fluid, facilitating subsequent processing and analysis. Using a scientific, simple, and precise tool to replace traditional waste fluid collection methods, the device is pre-set with pump speed and time intervals. After connecting to the dialysis waste fluid tubing 3 after the dialysis machine, no manual intervention is required. Waste fluid from different time periods can be obtained after treatment. Testing the waste fluid at different time periods allows clinicians or researchers to obtain information related to the hemodialysis patient's disease status, the effectiveness of various toxin removal, and adverse effects of dialysis.

[0066] The device is connected to the dialysis waste tubing 3 of the dialysis machine via waste tubing 3 (e.g., via a T-junction). Waste liquid is pumped into waste tubing 3 by waste pump 2 at a set flow rate. There is an outlet cap 5 at the outlet of waste tubing 3. The outlet cap 5 is inserted into the housing 1 through a pre-drilled hole, and the waste liquid flows into collection bottle 10 through the outlet cap 5. When dialysis treatment begins, the pump 2 pumps at a speed of 2 ml / min. The first collection bottle 10 is located directly below the outlet cap 5. After 30 minutes, the second collection bottle 10 is rotated to be directly below the outlet cap 5. At this time, the first collection bottle 10 has collected 60 ml of waste liquid, and the second collection bottle 10 continues to collect waste liquid.

[0067] The device is simple in structure, easy to implement and maintain, and does not require complex circuit design. It can automate the collection of waste liquid without human intervention, avoiding the tediousness of manual operation and the inaccuracy of sampling time and frequency caused by negligence, as well as the possible waste liquid pollution problem. It can realize the function of collecting a quantitative amount of waste liquid at different time intervals, reducing labor intensity, reducing operational errors, and improving the accuracy and safety of waste liquid collection.

[0068] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0069] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0070] The above provides a detailed description of the automatic dialysis waste liquid collection device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An automatic dialysis waste fluid collection device, characterized in that, include: Shell (1); Waste liquid pump (2) is provided in the housing (1), the waste liquid pump (2) is connected to waste liquid pipe (3), and the outlet of the waste liquid pipe (3) is located inside the housing (1); A rotating device (4) is provided on the housing (1). The rotating device (4) has several stations for placing collection bottles (10). The stations are centrally symmetrical about the central axis of the rotating device (4). The stations are located below the outlet of the waste liquid pipe (3). The vertical distance between the outlet of the waste liquid pipe (3) and the central axis of any station is the same as the vertical distance between the central axis of the rotating device (4). A timing device is provided on the rotating device (4). The timing device is used to calculate the running time of the rotating device (4) when any of the collection bottles (10) rotates to below the outlet of the waste liquid pipe (3), and the dwell time of the collection bottle (10) below the outlet of the waste liquid pipe (3). The control device is signal-connected to the waste liquid pump (2), the rotating device (4), and the timing device.

2. The automatic dialysis waste collection device according to claim 1, characterized in that, The rotating device (4) includes a rotating shaft (41) and a driving device (42) for driving the rotating shaft (41) to rotate. It also includes a support frame (43) provided on the rotating shaft (41). The support frame (43) is provided with a plurality of elastic clamps (44) for clamping the collection bottle (10) evenly in the circumferential direction.

3. The automatic dialysis waste collection device according to claim 2, characterized in that, The drive device (42) is located at the top or bottom of the housing (1).

4. The automatic dialysis waste collection device according to claim 3, characterized in that, The waste liquid pump (2) includes a motor (21), a rotor (22) and a housing (23). The motor (21) is located at the top inside the housing (1). The output shaft of the motor (21) is connected to the rotor (22). The rotor (22) is rotatably located on the outer end face of the housing (1). The housing (23) is located on the outer periphery of the rotor (22). The drive device (42) is located at the bottom of the motor (21).

5. The automatic dialysis waste collection device according to claim 4, characterized in that, The top of the housing (1) is provided with a detachable top cover, and the waste liquid pump (2) and the waste liquid pipe (3) are located on the top cover.

6. The automatic dialysis waste collection device according to claim 5, characterized in that, The outlet of the waste liquid pipe (3) is fixed to the top cover by the outlet cap (5).

7. The automatic dialysis waste collection device according to claim 4, characterized in that, The housing (1) has a side opening in the circumferential direction, and the side opening has an openable door.

8. The automatic dialysis waste collection device according to claim 1, characterized in that, The rotating device (4) includes a rotating base, which has several elastic slots for placing the collection bottle (10).

9. The automatic dialysis waste collection device according to any one of claims 1-8, characterized in that, The waste liquid pipe (3) is equipped with a flow sensor for real-time detection of the flow rate of waste liquid in the pipe, and the flow sensor is connected to the control device.

10. The automatic dialysis waste collection device according to claim 9, characterized in that, The liquid outlet is equipped with a shut-off valve that is connected to the control device via a signal.

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