Pipeline selection device and medical equipment

Abstract

The invention provides a pipeline selection device and medical equipment. The pipeline selection device comprises a base, and a baffle and a rotating part rotationally connected with the base are arranged on the base; the number of the baffles is at least two, the baffles are distributed at intervals along the rotating path of the rotating part, the side, facing the rotating part, of each baffle is provided with a space for containing a local pipe section of the liquid pipe, and one liquid pipe can be arranged at each baffle; the rotating piece can be close to any baffle and far away from other baffles in the rotating process, and extrudes the liquid pipe at any baffle so as to cut off the liquid pipe. According to the pipeline selection device suitable for the medical equipment, the pipelines can be rapidly connected or disconnected outside the pipelines, the on-off states of the multiple pipelines are rapidly switched, the requirement for liquid medicine sanitation can be met, on-off replacement of the multiple pipelines can be conveniently and rapidly achieved, on-off management and control over the pipelines are reliable and accurate, and the practicability is high. And the switching efficiency of the pipeline can also be improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a pipeline selection device and medical equipment. Background Art

[0002] Medical equipment will be equipped with pipelines for conveying liquid medicine. Among them, blood treatment equipment, such as hemodialysis equipment and blood purification equipment, needs to lead blood out of the human body, mix it with liquid medicine outside the body for treatment, and then return the blood to the human body. Blood treatment involves a variety of treatment modes, and the way liquid medicine and blood are mixed is different in different modes, so there are a large number of liquid medicine pipelines on the equipment. In actual use, medical staff will select and switch pipelines according to the mode requirements, resulting in a large number of pipeline selection and switching operations. If the pipeline is turned on or off manually using a tube clamp, the operation is cumbersome and inefficient, but if a solenoid valve or other valve is connected to the pipeline, the valve is not easy to clean after the liquid medicine is delivered, and it is not easy to meet the hygienic requirements of the liquid medicine for a single drug and a single tube. Summary of the invention

[0003] In view of this, the present application aims to provide a pipeline selection device that can be used on medical equipment, which can quickly turn on or off the pipeline outside the pipeline and quickly switch the on and off states of multiple pipelines. This can not only meet the hygiene requirements of the liquid medicine, but also facilitate the rapid on and off replacement of multiple pipelines. The on and off control of the pipelines is reliable and accurate, and the switching efficiency of the pipelines can be improved.

[0004] The present application provides a pipeline selection device, comprising a base, on which a baffle and a rotating member rotatably connected to the base are arranged;

[0005] At least two baffles are provided along the rotation path of the rotating member, and each baffle has a space for placing a partial section of a liquid pipe on a side facing the rotating member, so that a liquid pipe can be provided at each baffle;

[0006] The rotating member can approach any baffle and move away from other baffles during rotation, and squeeze the liquid pipe at any baffle to shut off the liquid pipe.

[0007] In a possible implementation, the baffle includes a first baffle and a second baffle; the first baffle and the second baffle are spaced apart and arranged opposite to each other, the rotating member is located between the first baffle and the second baffle, and a first liquid pipe is placed between the rotating member and the first baffle, and a second liquid pipe is placed between the rotating member and the second baffle;

[0008] The rotating member has an eccentrically arranged extrusion portion, which can rotate from an initial position to a first position close to the first baffle and away from the second baffle and extruding the first liquid pipe, and can also rotate to a second position close to the second baffle and away from the first baffle and extruding the second liquid pipe.

[0009] In a possible implementation, the rotating member is a cam, and the protrusion of the cam forms an extrusion portion for extruding the liquid tube; or, the rotating member has an eccentrically arranged column, and the column forms an extrusion portion for extruding the liquid tube.

[0010] In a possible implementation manner, the rotating member includes a main block body rotatably connected to the base and a column eccentrically arranged on the main block body; wherein,

[0011] The column comprises a column body and a rotating sleeve which is sleeved on the column body and can rotate relative to the column body, or the column comprises a column body and a ball or roller embedded on the surface of the column body.

[0012] In a possible implementation manner, the extrusion plate surface of the baffle plate facing the rotating member is an arc-shaped surface.

[0013] In a possible implementation manner, a slot for inserting a turning key is provided on the top surface of the main block, so that the rotating member can be driven to rotate by twisting the turning key to switch the pipeline.

[0014] In a possible embodiment, the column includes an anti-slip boss, a light column section and a connecting section in sequence along the axial direction, the connecting section extends into the base and is detachably connected to the base, the light column section and the anti-slip boss are located in the rotating sleeve, and the rotating sleeve has a step surface that abuts against the anti-slip boss.

[0015] In a possible implementation, it further includes:

[0016] A power member, which is transmission-connected with the rotating member and is used to drive the rotating member to rotate;

[0017] A controller, electrically connected to the power member;

[0018] A sensor assembly is connected to the controller for detecting the rotation position of the extrusion portion.

[0019] In a possible implementation, the sensor assembly includes:

[0020] three sensors, distributed along the circumference of the rotating member and corresponding to an initial position, a first position and a second position of the extrusion portion of the rotating member on the rotation path, respectively;

[0021] The induction sheet is connected to the rotating member and rotates with the rotating member, and is used for triggering the corresponding sensor when the extrusion part rotates to a target position.

[0022] In a possible implementation, the base includes:

[0023] An upper cover, on which the rotating member and the baffle are both arranged;

[0024] The lower shell is detachably connected to the upper cover, the power member is connected to the lower shell, and the sensor assembly is connected to the side surface of the lower shell and distributed along the circumferential direction.

[0025] In a possible embodiment, the upper cover has a cover plate, a first boss protruding from the cover plate, and a second boss arranged on the first boss, the baffle is located on the second boss, and the rotating member is also rotatably connected to the second boss; the top end surface of the first boss is used to abut against the inner wall of the equipment housing and is provided with a sealing member extending circumferentially along the second boss to seal the first boss passing through the equipment housing.

[0026] In a possible implementation manner, the rotating hole on the upper cover for the rotating member to pass through is a stepped hole, the rotating member passes through the shaft sleeve and is rotatably connected to the upper cover through the shaft sleeve, the shaft sleeve is embedded with a large hole section of the rotating hole, and the two axial ends are respectively against the stepped surface on the rotating hole and the lower shell;

[0027] And / or, the lower shell includes a bottom plate and a side plate connected to the bottom plate, the side plate and the bottom plate enclose a concave cavity for the lower part of the rotating part to extend into, the power part is connected to the bottom plate, and the three sensors are distributed on the three side plates connected in sequence along the circumferential direction.

[0028] The present application also provides a medical device, comprising a device body and a pipeline selection device as described in any one of the above items.

[0029] In a possible implementation, the medical device is a hemodialysis machine or a blood purification device.

[0030] The pipeline selection device provided by the present application is provided with baffles and liquid pipes on the rotation path of the rotating member, and the rotating member is rotated to a position close to any baffle to squeeze the liquid pipe between the two to shut off one pipeline and connect the other pipeline. Taking two baffles and two liquid pipes as an example, when the rotating member is rotated to the initial position, the first position close to the first baffle, and the second position close to the second baffle, three pipeline state switching can be realized: connecting two pipelines at the same time, shutting off the first liquid pipe and connecting the second liquid pipe, and shutting off the second liquid pipe and connecting the first liquid pipe. It can be seen that the pipeline selection device provided in the present application can select or adjust the on and off conditions of the pipeline by controlling the rotation position of the rotating part, and can adjust the on and off conditions of multiple pipelines, and can realize the use switching of multiple pipelines. It is easy to operate and easy to use; and can quickly and conveniently turn on or off the pipeline outside the pipeline. When applied to liquid medicine or blood pipeline systems, it can not only meet the hygiene requirements of liquid medicine, but also facilitate the on and off switching of multiple pipelines, facilitate the start-up of the required pipeline for use, improve the switching efficiency of the pipeline, and the on and off control of the pipeline is reliable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The figure shows the overall structure diagram of the pipeline selection device in the embodiment of the present application;

[0032] Figure 2 The figure shows a schematic diagram of the composition of the pipeline selection device in the embodiment of the present application;

[0033] Figure 3 The figure shows a cross-sectional schematic diagram of a pipeline selection device in an embodiment of the present application;

[0034] Figure 4 Shown is a schematic diagram of a sensor assembly in an embodiment of the present application;

[0035] Figure 5 Shown is a schematic diagram of the arrangement of the pipeline selection device on the equipment body in an embodiment of the present application.

[0036] Figure 1-Figure 5 middle:

[0037] 1. base; 11. upper cover; 111. first boss; 112. second boss; 12. lower shell; 121. bottom plate; 122. side plate;

[0038] 2. Rotating member; 21. Column; 211. Column; 212. Rotating sleeve; 22. Main block; 201. Slot;

[0039] 3. baffle; 31. first baffle; 32. second baffle; 301. extrusion plate surface;

[0040] 41. Sensor; 42. Induction plate; 5. Power part; 6. Bushing; 7. Equipment body. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] Please refer to the attached Figure 1-Figure 5 , an embodiment of the present application provides a pipeline selection device, which is suitable for switching multiple pipelines, selecting and adjusting pipeline states. The pipeline selection device includes a base 1, on which a baffle 3 and a rotating member 2 are arranged; the rotating member 2 is rotatably connected to the base 1, and the baffle 3 is arranged on one side of the rotation path of the rotating member 2, and at least two baffles 3 are arranged and distributed at intervals along the rotation path of the rotating member 2. At the same time, each baffle 3 has a space for placing a liquid pipe on one side facing the rotating member 2, so that a liquid pipe can be arranged at each baffle 3; in other words, a liquid pipe can pass through one side of the baffle 3. Among them, when the rotating member 2 rotates, it can approach any baffle 3 and move away from other baffles 3, and squeeze the liquid pipe near the baffle 3 to shut off the liquid pipe, that is, when the rotating member 2 rotates to face any baffle 3, the distance between the baffle 3 and the rotating member 2 is smaller than the diameter of the liquid pipe, and the rotating member 2 squeezes the liquid pipe, or the rotating member 2 and the baffle 3 tightly clamp the liquid pipe, causing the liquid pipe to be squeezed and unable to pass liquid, thus forming a shutoff; at the same time, the liquid pipes at other baffles 3 are all in a conducting state. In this way, by rotating the rotating member 2 and controlling the squeezing position of the rotating member 2, the conduction and shutoff of the pipeline can be selected or adjusted.

[0043] When a power member 5 is provided to drive the rotating member 2 to rotate, for example, the pipeline selection device further includes a power member 5 that is transmission-connected to the rotating member 2 and used to drive the rotating member 2 to rotate, and a controller that is electrically connected to the power member 5. By controlling the power member 5 by the controller to adjust the rotation angle and the extrusion position of the rotating member 2, the use status of multiple pipelines can be quickly and accurately switched.

[0044] It can be seen that the pipeline selection device provided by the present application is provided with a baffle 3 and a liquid pipe on the rotation path of the rotating part 2. The rotating part 2 rotates to different positions to squeeze the liquid pipe at any baffle 3 to shut off one pipeline and connect other pipelines. The on-off state of multiple pipelines can be adjusted by controlling the rotation position of the rotating part 2, and the use switching of multiple pipelines can be realized. The operation is convenient and easy to use, and the pipeline can be switched by rotating the rotating part 2 at an angle, so that the pipeline switching is fast and timely; at the same time, since the pipeline can be quickly connected or disconnected outside the pipeline, the pipeline selection device is applied to the medicine liquid or blood pipeline system, which can not only meet the hygiene requirements of the medicine liquid, but also facilitate the on-off switching of multiple pipelines, facilitate the start of the required pipeline for use, improve the switching efficiency of the pipeline, and the on-off control of the pipeline is reliable and accurate.

[0045] The number of baffles 3 can be determined according to the demand and the number of liquid pipes that need to be connected at one time. This application uses two liquid pipes with the highest demand as an example to explain.

[0046] For example, the baffle 3 includes a first baffle 31 and a second baffle 32; the first baffle 31 and the second baffle 32 are spaced apart and arranged opposite to each other, and the rotating member 2 is located between the first baffle 31 and the second baffle 32, or the first baffle 31 and the second baffle 32 are located on opposite sides of the rotating member 2 and are distributed along the circumference of the rotating member 2; the first liquid pipe is placed between the rotating member 2 and the first baffle 31, and the second liquid pipe is placed between the second baffle 32. In addition, the rotating member 2 has an eccentrically arranged extrusion portion, and as the rotating member 2 rotates, the extrusion portion can rotate from an initial position to a first position close to the first baffle 31 and away from the second baffle 32 and extruding the first liquid pipe (or clamping the first liquid pipe with the first baffle 31), and can also rotate to a second position close to the second baffle 32 and away from the first baffle 31 and extruding the second liquid pipe.

[0047] The rotating member 2 rotates around the central axis of rotation, and the eccentrically arranged extrusion portion has an initial position, a first position, and a second position on the rotation path. When the extrusion portion rotates to the initial position with a spacing from both the first baffle 31 and the second baffle 32, for example, the initial position between the first position and the second position in the circumferential direction of the rotating member 2, the first liquid pipe and the second liquid pipe are both in a conducting state; when the extrusion portion rotates to the first position, the plate surfaces of the extrusion portion and the first baffle 31 are opposite in the axial direction, the extrusion portion and the first baffle 31 clamp or squeeze the first liquid pipe between the two, and shut off the first liquid pipe, blocking the flow of liquid in the first liquid pipe, at this time the second liquid pipe is in a conducting state; when the extrusion portion rotates to the second position, the extrusion portion will be opposite in the axial direction to the plate surface of the second baffle 32, thereby squeezing the second liquid pipe to shut off the second liquid pipe, at this time the first liquid pipe is in a conducting state.

[0048] With such arrangement, when the rotating member 2 rotates to the initial position, the first position close to the first baffle 31 and the second position close to the second baffle 32, three pipeline state switchings can be realized, namely, simultaneously connecting two pipelines, closing the first liquid pipe and connecting the second liquid pipe, and closing the second liquid pipe and connecting the first liquid pipe. The pipeline switching efficiency is high, and the on-off control of the pipeline is reliable and accurate.

[0049] Specifically, in some embodiments, the rotating member 2 is a cam, and the protrusion of the cam forms an extrusion portion for extruding the liquid pipe with the baffle 3. Or, in some embodiments, the rotating member 2 has an eccentrically arranged column 21, and the column 21 forms an extrusion portion for extruding the liquid pipe with the baffle 3. For example, Figure 1 As shown, the rotating member 2 includes a main block 22 rotatably connected to the base 1 and a column 21 eccentrically arranged on the main block 22; or, the rotating member 2 includes a rotating rod, one end of which is connected to the base 1 through a rotating shaft, and the other end is provided with a column 21. The rotating rod rotates around the rotating shaft with the column 21, and can squeeze the liquid pipes distributed along its rotation path.

[0050] In a preferred embodiment, the rotating member 2 includes a main block 22 rotatably connected to the base 1 and a column 21 eccentrically arranged on the main block 22. In this arrangement, the rotating member 2 is a cylindrical block structure, which is stable in rotation, and it is convenient to expose the baffle 3 and the column 21 on the surface of the device body 7, while the rest of the position is located inside the shell of the device body 7, and at the same time, there is no gap between the shell of the device body 7 that is not convenient for sealing.

[0051] Furthermore, the column 21 includes a column 211 and a rotating sleeve 212 that is sleeved on the column 211 and can rotate relative to the column 211, or the column 21 includes the column 211 and a ball or roller embedded on the surface of the column 211. In this way, in the process of the column 21 contacting the liquid pipe and rotating to the position of completely squeezing the liquid pipe, the column 21 and the liquid pipe are rolling friction rather than sliding friction, which can effectively reduce the friction force and prevent the squeezing action from getting stuck or damaging the liquid pipe. In a preferred embodiment, a rotating sleeve 212 is sleeved on the column 211 of the column 21. Compared with the ball, the rotating sleeve 212 is more flexible, has a better friction reduction effect, is better to use, and is more stable and durable.

[0052] For example, the column body 211 of the column 21 includes an anti-slip boss, a light column section and a connecting section in the axial direction, the connecting section extends into the base 1 and is detachably connected to the base 1, the light column section and the anti-slip boss are located in the rotating sleeve 212, and the rotating sleeve 212 has a step surface that abuts against the anti-slip boss. In this way, the rotating sleeve 212 can be firmly connected to the column body 211 of the column 21 and can rotate flexibly.

[0053] In some embodiments, the plate surface of the baffle 3 facing the rotating member 2 is an arc-shaped surface, or the extrusion plate surface 301 on the baffle 3 for forming extrusion with the column 21 is an arc-shaped surface; that is, the extrusion plate surfaces 301 of the first baffle 31 and the second baffle 32 facing the rotating member 2 are both arc-shaped surfaces. In this way, the extrusion plate surface 301 can match the outer surface of the rotating sleeve 212, and the distances between the column 21 and the arc-shaped surface in each area in the circumferential direction of the rotating member 2 are consistent or substantially consistent. In the entire extension range of the arc-shaped surface in the circumferential direction of the rotating member 2, the column 21 can effectively squeeze the liquid pipe to form a pipeline shutoff, thereby ensuring the effectiveness of the pipeline shutoff.

[0054] In some embodiments, the pipeline selection device includes not only a power member 5 driving the rotating member 2 to rotate and a controller electrically connected to the power member 5, but also a sensor assembly communicatively connected to the controller. The sensor assembly is used to detect the rotation position of the extrusion part and transmit a signal to the controller, and the controller controls the rotation angle and direction of the rotating member 2 according to the signal, so as to control the position of the extrusion part and switch the pipeline state.

[0055] Specifically, in some embodiments, the sensor assembly may include a sensing sheet 42 and three sensors 41, the three sensors 41 are distributed along the circumference of the rotating member 2, and respectively correspond to the initial position, the first position, and the second position of the above-mentioned extrusion part such as the column 21 on the rotation path. The sensing sheet 42 is connected to the rotating member 2 and rotates with the rotating member 2, and is used to trigger the corresponding sensor 41 when the extrusion part rotates to the target position. When the extrusion part such as the column 21 rotates to the initial position, the sensing sheet 42 triggers the first sensor 41 corresponding to the initial position. The controller obtains the signal and knows that the column 21 has rotated to the initial position, and can close the power member 5 in time to make the column 21 stay there. Then, when the controller chooses to switch the pipeline according to the treatment mode or input information, the power part 5 is started to drive the rotating part 2 to turn left or right to approach the first baffle 31 or the second baffle 32. If the first liquid pipe needs to be shut off, the controller drives the rotating part 2 through the power part 5 to make the column 21 rotate toward the first baffle 31. When the column 21 rotates to the first position for squeezing the first liquid pipe, the sensor sheet 42 triggers the second sensor 41 corresponding to the first position, and the controller stops the column 21 at this position in time, thereby realizing the pipeline switching of shutting off the first liquid pipe and connecting the second liquid pipe; similarly, when the column 21 rotates to the second position and squeezes the second liquid pipe located at the second baffle 32, the sensor sheet 42 triggers the third sensor 41 corresponding to the second position, and the controller accurately stops the column 21 there, thereby realizing the pipeline switching of shutting off the second liquid pipe and connecting the first liquid pipe.

[0056] According to the pipeline selection state, a sensor 41 is correspondingly set for each stop position of the column 21 on the rotation path, which can sensitively and accurately respond to the rotation position and state of the column 21. The controller can accurately and quickly adjust the start and stop of the column 21, not only can the column 21 quickly stop at the position of shutting off the liquid pipe, but also can adjust the rotation direction and angle of the column 21 according to the pipeline switching requirements, and realize pipeline switching quickly and accurately.

[0057] The sensor 41 may specifically be a photoelectric sensor 41 , a Hall sensor 41 , a proximity switch, and the like.

[0058] In some embodiments, Figure 1 and Figure 3 As shown, a slot 201 for inserting a key is provided on the top surface of the main block 22 of the rotating member 2, so that the rotating member 2 can be driven to rotate by turning the key to switch the pipeline. The key can be a common plug plate that can be inserted into the slot 201, or a key with features matching the slot 201. When the power member 5 or the controller fails or stops working due to an alarm, the key can also be used to rotate the rotating member 2 to shut off the pipeline or remove the pipeline from the equipment in special circumstances or emergencies.

[0059] For ease of assembly and disassembly, in some embodiments, the pipeline selection device is an integral module, which is detachably connected to the device body 7. For example, in some embodiments, the base 1 includes an upper cover 11 and a lower shell 12, the rotating member 2 and the baffle 3 are both arranged on the upper cover 11, the first baffle 31 and the second baffle 32 are arranged on the top surface of the upper cover 11, the rotating member 2 is rotatably connected to the upper cover 11, and the lower shell 12 is detachably connected to the upper cover 11 and has a concave cavity for the lower part of the rotating member 2 to extend into. The lower shell 12 includes a bottom plate 121 and a side plate 122 connected to the bottom plate 121, and the side plate 122 and the bottom plate 121 enclose a concave cavity.

[0060] The power member 5 is detachably connected to the lower shell 12, such as detachably connected to the bottom plate 121 of the lower shell 12, and the transmission shaft extends into the concave cavity to be transmission-connected with the rotating member 2. The power member 5 can be a motor, a cylinder, etc. Preferably, the power member 5 can be a motor, and the power output shaft of the motor forms the transmission shaft, which directly extends into the concave cavity to be connected with the rotating member 2. For example, the main block 22 of the rotating member 2 has a groove, and the power output shaft of the motor extends into the groove to be connected with the rotating member 2 and drives the rotating member 2 to rotate.

[0061] The sensor assembly is connected to the side of the upper shell and distributed along the circumferential direction, for example, three sensors 41 are distributed on three side plates 122 that are sequentially connected along the circumferential direction. Specifically, the side plates 122 are provided with through holes for the probes of the sensors 41 to extend into the concave cavity, and are provided with connection holes for fixing the sensors 41. The sensors 41 can be fixed on the bearing blocks, and the bearing blocks can be detachably connected to the lower shell 12 by screws inserted into the connection holes.

[0062] In this arrangement, the base 1 is divided into an upper cover 11 and a lower shell 12, and all components are distributed on the upper cover 11 and the lower shell 12. The upper cover 11 and the lower shell 12 are directly detachably connected to form a pipeline selection device. The upper cover 11 or the lower shell 12 is detachably connected to the device body 7. For example, the upper cover 11 is connected to the device body 7 by fasteners such as screws, and the pipeline selection device can be fixed to the device body 7. Not only can the pipeline selection device be disassembled as a whole to facilitate inspection, maintenance, replacement and other operations, but the pipeline selection device itself is also easy to disassemble and assemble, and the assembled parts are easy to disassemble for inspection and also easy to assemble as a whole.

[0063] like Figure 1-Figure 3 As shown, in some embodiments, the upper cover 11 has a cover plate, a first boss 111 protruding from the cover plate, and a second boss 112 disposed on the first boss 111, the baffle 3 is located on the second boss 112, and the rotating member 2 is also rotatably connected to the second boss 112; the top end surface of the first boss 111 is used to abut against the inner wall of the device housing and is provided with a sealing member extending circumferentially along the second boss 112 to seal the first boss 111 passing through the device housing. In this way, the pipeline selection device can be located in the outer shell of the device body 7, and only the baffle 3 and the column 21 pass through the outer shell and are exposed outside the outer shell. The upper cover 11 is set as a multi-layer boss structure, which is convenient for being firmly positioned and connected with the outer shell of the device body 7 with high sealing performance.

[0064] like Figure 3 As shown, the rotating hole on the upper cover 11 for the rotating member 2 to pass through is a stepped hole, the rotating member 2 passes through the shaft sleeve 6 and is rotatably connected to the upper cover 11 through the shaft sleeve 6, the shaft sleeve 6 is embedded with a large hole section of the rotating hole, and the two axial ends are respectively against the stepped surface on the rotating hole and the lower shell 12. With this arrangement, the rotating member 2 can rotate stably and smoothly.

[0065] The present application also provides a medical device, comprising a device body 7 and a pipeline selection device as described in any of the above embodiments.

[0066] Specifically, the medical device is a hemodialysis machine or a blood purification device.

[0067] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0068] The components and devices involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the drawings. As will be appreciated by those skilled in the art, these components and devices can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, meaning "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The word "such as" used here refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0069] It should also be noted that in the device and apparatus of the present application, each component can be decomposed and / or reassembled, and such decomposition and / or reassembly should be regarded as an equivalent solution of the present application.

[0070] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0071] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

[0072] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pipeline selection device, characterized in that: It comprises a base (1), on which a baffle (3) and a rotating member (2) rotatably connected to the base (1) are arranged; At least two baffles (3) are provided and spaced apart along the rotation path of the rotating member (2); each baffle (3) has a space for placing a partial section of a liquid pipe on a side facing the rotating member (2), so that a liquid pipe can be provided at each baffle (3); The rotating member (2) can approach any baffle (3) and move away from other baffles (3) during rotation, and squeeze the liquid pipe at any baffle (3) to shut off the liquid pipe.

2. The pipeline selection device according to claim 1, characterized in that: The baffle (3) comprises a first baffle (31) and a second baffle (32); the first baffle (31) and the second baffle (32) are spaced apart and arranged opposite to each other; the rotating member (2) is located between the first baffle (31) and the second baffle (32); a first liquid pipe is placed between the rotating member (2) and the first baffle (31); and a second liquid pipe is placed between the rotating member (2) and the second baffle (32); The rotating member (2) has an eccentrically arranged squeezing portion, which can rotate from an initial position to a first position close to the first baffle (31) and away from the second baffle (32) and squeezing the first liquid pipe, and can also rotate to a second position close to the second baffle (32) and away from the first baffle (31) and squeezing the second liquid pipe.

3. The pipeline selection device according to claim 1, characterized in that: The rotating member (2) is a cam, and the raised portion of the cam forms an extrusion portion for extruding the liquid tube; or, the rotating member (2) has an eccentrically arranged column (21), and the column (21) forms an extrusion portion for extruding the liquid tube.

4. The pipeline selection device according to claim 1, characterized in that: The rotating member (2) comprises a main block (22) rotatably connected to the base (1) and a column (21) eccentrically arranged on the main block (22); wherein: The column (21) comprises a column (211) and a rotating sleeve (212) sleeved on the column (211) and rotatable relative to the column (211); or the column (21) comprises a column (211) and a ball or roller embedded on the surface of the column (211).

5. The pipeline selection device according to any one of claims 1 to 4, characterized in that: The extrusion plate surface (301) of the baffle (3) facing the rotating member (2) is an arc-shaped surface.

6. The pipeline selection device according to claim 4, characterized in that: A slot (201) for inserting a rotary key is provided on the top surface of the main block (22), so that the rotary member (2) can be driven to rotate by twisting the rotary key to switch the pipeline.

7. The pipeline selection device according to claim 4, characterized in that: The column (211) comprises an anti-slip boss, a light column section and a connecting section in sequence along the axial direction; the connecting section extends into the base (1) and is detachably connected to the base (1); the light column section and the anti-slip boss are located in the rotating sleeve (212); and the rotating sleeve (212) has a step surface that abuts against the anti-slip boss.

8. The pipeline selection device according to claim 1, characterized in that: Also includes: A power member (5) is connected to the rotating member (2) in a transmission manner and is used to drive the rotating member (2) to rotate; A controller electrically connected to the power member (5); A sensor assembly is connected to the controller for detecting the rotation position of the extrusion portion.

9. The pipeline selection device according to claim 8, characterized in that: The sensor assembly comprises: three sensors (41), distributed along the circumference of the rotating member (2), and corresponding to an initial position, a first position, and a second position of the extrusion portion of the rotating member (2) on the rotation path, respectively; The induction sheet (42) is connected to the rotating member (2) and rotates with the rotating member (2), and is used to trigger the corresponding sensor (41) when the extrusion portion rotates to a target position.

10. The pipeline selection device according to claim 9, characterized in that: The base (1) comprises: An upper cover (11), the rotating member (2) and the baffle plate are both arranged on the upper cover (11); The lower shell (12) is detachably connected to the upper cover (11), the power component (5) is connected to the lower shell (12), and the sensor components are connected to the side of the lower shell (12) and distributed along the circumference.

11. The pipeline selection device according to claim 10, characterized in that: The upper cover (11) comprises a cover plate, a first boss (111) protruding from the cover plate, and a second boss (112) arranged on the first boss (111); the baffle (3) is located on the second boss (112); and the rotating member (2) is also rotatably connected to the second boss (112); The top end surface of the first boss (111) is used to abut against the inner wall of the device housing and is provided with a sealing member extending along the circumference of the second boss (112) to seal the first boss (111) passing through the device housing.

12. The pipeline selection device according to claim 10, characterized in that: The rotating hole on the upper cover (11) through which the rotating member (2) is inserted is a stepped hole; the rotating member (2) is inserted into the shaft sleeve (6) and is rotatably connected to the upper cover (11) via the shaft sleeve (6); the shaft sleeve (6) is embedded with a large hole section of the rotating hole, and the two axial ends thereof are respectively abutted against the stepped surface on the rotating hole and the lower shell (12); And / or, the lower shell (12) includes a bottom plate (121) and a side plate (122) connected to the bottom plate (121), the side plate (122) and the bottom plate (121) enclose a concave cavity for the lower part of the rotating member (2) to extend into, the power member (5) is connected to the bottom plate (121), and the three sensors (41) are distributed on the three side plates (122) connected in sequence along the circumferential direction.

13. A medical device, characterized in that: It comprises an equipment body (7) and a pipeline selection device as described in any one of claims 1 to 12.

14. The medical device according to claim 13, characterized in that The medical device is a hemodialysis machine or a blood purification device.

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