Nutrition infusion tube

Abstract

The embodiment of the utility model provides a nutrition infusion tube. The nutrition infusion tube comprises a peristaltic tube, an input tube connector, an output tube connector, a conveying tube and a supporting plate. The supporting plate is provided with a guide groove, and the guide groove can guide movement of the supporting plate. The input pipe connector is connected to the peristaltic pipe and one conveying pipe, and the output pipe connector is connected to the peristaltic pipe and the other conveying pipe; the peristaltic tube section between the input port of the peristaltic tube and the starting point of the adjacent annular part and the peristaltic tube section between the output port of the peristaltic tube and the starting point of the adjacent annular part are subjected to external expansion force given by the supporting plate, the input tube connector, the output tube connector or the independent external expansion piece. The internal structure of the nutrition infusion tube, such as the supporting plate, the input tube connector, the output tube connector or the independent external expansion piece, can provide external expansion force to open the peristaltic tube, so that an operator can achieve the installation process of the nutrition infusion tube with one hand, and due to the guiding effect of the guide groove, the reliability of the installation process is high.

Description

Technical Field

[0001] This application relates to the technical field of medical infusion devices, and particularly to a nutritional infusion tube. Background Art

[0002] A nutritional infusion tube is an infusion device that can be installed on a nutritional infusion device and is used to conveniently input water, nutrient solution, and self-made rice milk with a certain concentration to patients. A nutritional infusion tube is a disposable infusion consumable. The smaller its volume, the more convenient it is for patients to use, carry, and replace. However, when the volume of the nutritional infusion tube is smaller, during the process of installing it on the nutritional infusion device, the operator needs to cooperate with both hands to successfully install it, and the operation is relatively inconvenient, and the assembly process is cumbersome. Utility Model Content

[0003] The embodiments of this application provide a nutritional infusion tube. The nutritional infusion tube provided in the embodiments of this application can achieve miniaturized design of the nutritional infusion tube while allowing the operator to operate with one hand, facilitating the operator's use, and improving the reliability and convenience of the assembly process of the operator installing the nutritional infusion tube on the nutritional infusion device, and can achieve a faster and simpler installation process of the nutritional infusion tube.

[0004] In a first aspect, the embodiments of this application provide a nutritional infusion tube. The nutritional infusion tube includes a peristaltic tube, an input tube connector, an output tube connector, a delivery tube, and a support plate;

[0005] The support plate is provided with a guide groove and two mounting grooves, and the two mounting grooves are respectively arranged on both sides of the guide groove;

[0006] The guide groove is used to provide a guiding function when the support plate moves;

[0007] The input port of the peristaltic tube is connected to one end of the input tube connector, the other end of the input tube connector is connected to at least one delivery tube, and the input tube connector is located in one mounting groove. The output port of the peristaltic tube is connected to one end of the output tube connector, the other end of the output tube connector is connected to another delivery tube, and is located in the other mounting groove. Between the input port and the output port, the peristaltic tube further includes an annular portion that is suspended relative to the support plate or an independent expansion member;

[0008] The peristaltic tube section between the input port and the starting point of the adjacent annular portion is subjected to an outward expansion force of the support plate, the input tube connector, or the independent expansion member;

[0009] The peristaltic tube section between the output port and the starting point of the adjacent annular portion is subjected to an outward expansion force of the support plate, the output tube connector, or the independent expansion member;

[0010] The outward expansion force has a component along a direction perpendicular to the extending direction of the guide groove, so as to increase a distance between two starting points of the annular portion along the direction perpendicular to the extending direction of the guide groove.

[0011] In a possible implementation, the direction of the outward expansion force intersects or is perpendicular to the moving direction of the support plate.

[0012] In a possible implementation, the guide groove is disposed on the center line of the support plate, or the guide groove is disposed close to the center line of the support plate.

[0013] In a possible implementation, the nutrition infusion tube further includes a locking hole and / or an in-place identification element, which is located between the guide groove and the mounting groove for mounting the output tube connector.

[0014] In a possible implementation, the support plate has a top surface and a bottom surface, the top surface and the bottom surface are located on opposite sides of the support plate, and the top surface has a slope; in a direction away from the annular portion of the peristaltic tube, the distance between the slope and the bottom surface gradually increases.

[0015] In one possible implementation, the support plate has a top surface and a bottom surface, the top surface and the bottom surface are located on opposite sides of the support plate, the mounting groove is arranged on the bottom surface, the support plate includes a plate body and a protrusion, the protrusion is arranged at the top end of the plate body, and in the direction from the top surface of the support plate toward the bottom surface of the support plate, the distance from the surface of the protrusion away from the plate body to the plate body gradually decreases.

[0016] In a possible implementation, the support plate includes a plate body and two support members;

[0017] The two mounting grooves and the guide groove are both arranged on the plate body, and the two support members are arranged at intervals on the same side of the plate body or respectively on the two corresponding sides of the plate body;

[0018] One of the support members abuts against a starting point of one end of the annular portion, and the other support member abuts against a starting point of the other end of the annular portion, so as to increase a distance between the two starting points of the annular portion along an extending direction perpendicular to the guide groove.

[0019] In one possible implementation, in the input tube connector, the port for connecting to the delivery tube is bent relative to the port for connecting to the peristaltic tube; and / or in the output tube connector, the port for connecting to the delivery tube is bent relative to the port for connecting to the peristaltic tube.

[0020] In a possible implementation, the support plate includes two mounting openings and a transverse pipe groove. After the peristaltic tube passes through the mounting openings, it is respectively connected to the input tube connector and the output tube connector. The extending direction of the transverse pipe groove intersects or is perpendicular to the extending direction of the guide groove. Wherein, at least a part of the section of the peristaltic tube between the input tube connector or the output tube connector and the corresponding mounting opening is arranged along the transverse pipe groove. In a possible implementation, the maximum distance between the two ends of the annular part in the direction perpendicular to the extending direction of the guide groove is greater than or equal to 33 mm.

[0021] In a possible implementation, the two ends of the annular part are axisymmetric with the center line of the support plate as the axis of symmetry.

[0022] In a second aspect, an embodiment of the present application further provides another nutritional infusion tube. The nutritional infusion tube includes a peristaltic tube, an input tube connector, an output tube connector, a delivery tube, and a support plate;

[0023] The support plate is provided with a guide groove and two mounting grooves, and the two mounting grooves are respectively arranged on both sides of the guide groove;

[0024] The guide groove is used to provide a guiding function when the support plate moves;

[0025] The input port of the peristaltic tube is connected to one end of the input tube connector, the other end of the input tube connector is connected to at least one delivery tube, and the input tube connector is located in one mounting groove. The output port of the peristaltic tube is connected to one end of the output tube connector, the other end of the output tube connector is connected to another delivery tube, and is located in the other mounting groove. Between the input port and the output port, the peristaltic tube further includes an annular part that is suspended relative to the support plate or independently of the outer expansion part;

[0026] The maximum distance between the two ends of the annular part in the direction perpendicular to the extending direction of the guide groove is greater than or equal to 33 mm.

[0027] In a third aspect, an embodiment of the present application further provides a nutritional infusion tube. The nutritional infusion tube includes a peristaltic tube, an input tube connector, an output tube connector, a delivery tube, and a support plate;

[0028] The support plate is provided with a guide groove and two mounting grooves, and the two mounting grooves are respectively arranged on both sides of the guide groove;

[0029] The guide groove is used to provide a guiding function when the support plate moves;

[0030] The input port of the peristaltic tube is connected to one end of the input tube connector, the other end of the input tube connector is connected to at least one delivery tube, and the input tube connector is located in one mounting groove. The output port of the peristaltic tube is connected to one end of the output tube connector, the other end of the output tube connector is connected to another delivery tube, and is located in the other mounting groove. Between the input port and the output port, the peristaltic tube further includes an annular part that is suspended relative to the support plate;

[0031] The support plate further includes a plate body and two support members. The two support members are spaced apart and disposed on the bottom side of the plate body, and extend toward the annular portion;

[0032] One of the support members abuts against the starting point of one end of the annular portion, and the other support member abuts against the starting point of the other end of the annular portion, so as to increase the distance between the two starting points of the annular portion in a direction perpendicular to the extending direction of the guide groove.

[0033] In the nutrient infusion tube provided by the embodiment of the present application, when an operator installs the nutrient infusion tube, the guide groove can play a guiding and positioning role. And when the nutrient infusion tube is in a normal state (that is, when the nutrient infusion tube is not subjected to external forces applied by the operator or other external structural members), structures inside the nutrient infusion tube, such as parts of the support plate, the input tube connector, the output tube connector, or an independent outward expansion member, etc., can apply an outward expansion force to the peristaltic tube, so as to increase the distance between the two starting points of the annular portion of the peristaltic tube in a direction perpendicular to the extending direction of the guide groove; this is beneficial for the operator to easily and single-handedly sleeved the annular portion on the roller of the nutrient infusion device in the installation direction of the guide groove, and then install the guide groove, saving the installation steps of the operator, reducing the difficulty for the operator to install the nutrient infusion tube on the nutrient infusion device, and at the same time being beneficial to the lateral dimension and volume of the nutrient infusion tube and its corresponding nutrient infusion device. Description of the Drawings

[0034] Figure 1 is a schematic structural diagram of a nutrient infusion system provided by an embodiment of the present application in some embodiments;

[0035] Figure 2 is Figure 1 a schematic structural diagram of the nutrient infusion system shown in another state;

[0036] Figure 3 is a schematic installation environment diagram of a nutrient infusion tube provided by an embodiment of the present application;

[0037] Figure 4 is Figure 2 a schematic structural diagram of the nutrient infusion tube shown in some embodiments;

[0038] Figure 5 is Figure 4 a schematic structural diagram of the nutrient infusion tube shown in another perspective;

[0039] Figure 6 is Figure 5 a schematic exploded structural diagram of the nutrient infusion tube shown;

[0040] Figure 7 is a schematic diagram of a partial process of installing a nutrient infusion tube provided by an embodiment of the present application on a nutrient infusion device;

[0041] Figure 8 is Figure 6 A schematic structural view of the support plate shown from another angle;

[0042] Figure 9 A schematic view of the nutritional infusion tube provided by an embodiment of the present application during installation;

[0043] Figure 10 A schematic structural view of another nutritional infusion tube provided by an embodiment of the present application.

[0044] 1 - Nutritional infusion system, 10 - Nutritional infusion tube, 11 - Peristaltic tube, 111 - Input section, 111a - Input port, 112 - Output section, 112a - Output port, 113 - Ring portion, 113a - First starting point of the ring portion 113, 113b - Second starting point of the ring portion 113, 12 - Input tube connector, 121 - Reversing groove, 122 - First port, 123 - Second port, 13 - Output tube connector, 131 - Third port, 132 - Fourth port, 14 - Delivery tube, 141 - Output tube, 142 - Input tube, 15 - Support plate, 151 - Plate body, 151a - Top surface of the support plate 15, 151b - Bottom surface of the support plate 15, 151c - Ramp, 152 - Protrusion, 153 - Locking hole, 154 - Support member, 1541 - Connecting portion, 1542 - Bent portion, 1543 - Supporting portion, 1543a - Main body portion, 1543b - First retaining piece, 1543c - Second retaining piece, 155 - Installation groove, 155a - Installation opening, 156 - Pressing member, 16 - In-position recognition element, 20 - Nutritional infusion device, 201 - Bottom surface of the nutritional infusion device 20, 21 - Housing, 211 - Installation surface, 211a - First installation surface, 211b - Second installation surface, 211c - Third installation surface, 22 - Pump door, 23 - Installation space, 23a - First installation space, 23b - Second installation space, 23c - Third installation space, 24 - Driving assembly, 241 - Roller, 25 - Tube groove, 251 - Ultrasonic bubble sensor, 252 - Pressure sensor, 26 - Fixing assembly, 27 - Locking member, 28 - Switching member, 30 - Guide rail, 301 - First guide rail, 302 - Second guide rail, 303 - Third guide rail, 31 - Guide groove, 311 - First guide groove, 312 - Second guide groove. Detailed implementation manners

[0045] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0046] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Plurality" means at least two.

[0047] The orientation terms mentioned in the embodiments of the present application, such as "upper", "inner", "outer", "top", "bottom", "side", etc., are only references to the directions of the attached drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, 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 thus cannot be understood as a limitation to the embodiments of the present application.

[0048] In the embodiments of the present application, the limitations of the relative position relationships mentioned, such as parallel and perpendicular. These limitations are all for the current technological level and are not absolute strict limitations. A small deviation is allowed, and approximate parallelism, approximate perpendicularity, etc. are all acceptable. For example, A is parallel to B means that A is parallel to B or approximately parallel to B, and the included angle between A and B can be between 0 degrees and 10 degrees. For example, A is perpendicular to B means that A is perpendicular to B or approximately perpendicular to B, and the included angle between A and B can be between 80 degrees and 100 degrees.

[0049] In the embodiments of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include one or more of such features. Among them, an integrally formed structural member means that during the process of forming one part of the structural member, this part is connected to the other part together and does not require connecting the two parts together by means of reprocessing (such as bonding, welding, snap connection, screw connection).

[0050] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. 18 is a schematic structural diagram of the nutrition infusion system 1 provided by the embodiments of the present application in some embodiments, Figure 2 is Figure 1 a schematic structural diagram of the nutrition infusion system 1 shown in FIG. 18 in another state.

[0051] In some embodiments, the nutritional infusion system 1 may include a nutritional infusion tube 10 and a nutritional infusion device 20. The nutritional infusion tube 10 may be detachably mounted on the nutritional infusion device 20. Clinically, the nutritional infusion system 1 is generally used to deliver water, nutritional solutions, and self-made rice milk of a certain concentration to patients to provide nutrition for them. Among them, the nutritional infusion device 20 may provide a driving force for the fluid in the pipeline of the nutritional infusion tube 10 mounted thereon to push the fluid in the pipeline of the nutritional infusion tube 10 forward, so as to deliver fluids such as nutritional solutions and cleaning solutions in the pipeline of the nutritional infusion tube 10 to the patient.

[0052] Please refer to Figure 2 and Figure 3 , Figure 3 which is a schematic diagram of the installation environment of a nutritional infusion tube 10 provided by an embodiment of the present application.

[0053] In some embodiments, the nutritional infusion device 20 may include a housing 21 and a pump door 22. The pump door 22 may be rotatably connected to one side of the housing 21. Exemplarily, the housing 21 may be made of materials such as plastic and silica gel and is used to provide strength support for the nutritional infusion device 20. The pump door 22 may be hinged to the housing 21 through a door hinge. In some other embodiments, the pump door 22 may also be detachably connected to the housing 21 and covered on the housing 21 when needed. Alternatively, the pump door 22 may also be slidably connected to the housing 21. The present application does not limit the connection manner between the pump door 22 and the housing 21. In some embodiments, the nutritional infusion device 20 may not include the pump door 22 either, and the present application also does not limit this.

[0054] Exemplarily, the nutritional infusion device 20 may have an installation space 23. The installation space 23 may be considered to be formed by the partial outer surface of the housing 21 recessing towards the inside of the housing 21. The installation space 23 may be used to accommodate other structural components (such as the nutritional infusion tube 10, etc.) in the nutritional infusion system 1. During the process of the pump door 22 opening relative to the housing 21, the structural components installed in the installation space 23 are exposed to facilitate the operator to install or replace the structural components in the installation space 23. When the pump door 22 is closed relative to the housing 21, the pump door 22 may cover the installation space 23 to protect the structural components installed in the installation space 23 and prevent external impurity water or dust, etc. from affecting the service life of the structural components in the installation space 23. Among them, as Figure 1 shown, the pump door 22 and the housing 21 may jointly form the outer contour of the nutritional infusion system 1. When the pump door 22 is closed relative to the housing 21, the overall shape of the nutritional infusion system 1 can be restored. The outer surface of the nutritional infusion system 1 may be considered to be approximately a plane, ensuring the aesthetics of the product.

[0055] Exemplarily, please refer to again Figure 1As shown, the nutritional infusion device 20 can be erected on a support base such as a tabletop or a support frame. The nutritional infusion device 20 can have a bottom surface 201, and the bottom surface 201 of the nutritional infusion device 20 can be used to contact the support base such as a tabletop or a support frame. In some examples, a flexible support pad can also be provided on the bottom surface 201 of the nutritional infusion device 20 to avoid hard contact between the nutritional infusion device 20 and the support base, increase the friction between the nutritional infusion device 20 and the support base, ensure the stability of the nutritional infusion device 20, and also slow down the wear or scratching of the bottom surface 201 of the nutritional infusion device 20. Wherein, the side where the bottom surface 201 of the nutritional infusion device 20 is located is defined as the bottom side of the nutritional infusion device 20, and the top side of the nutritional infusion device 20 is opposite to the bottom side.

[0056] It can be understood that, for the convenience of description hereinafter, in the embodiments of the present application, it is defined that Figure 1 the nutritional infusion device 20 shown is in an erected state, and it is defined that Figure 1 the nutritional infusion device 20 shown has an X-axis direction, a Y-axis direction, and a Z-axis direction. The X-axis direction can be parallel to the length direction of the nutritional infusion device 20, the Z-axis direction can be parallel to the height direction of the nutritional infusion device 20, the Y-axis direction can be parallel to the width direction of the nutritional infusion device 20, and any two of the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other. In other embodiments, the nutritional infusion device 20 can also lie flat, be hung, or be connected to a support base such as a tabletop or a support frame in other postures, and the coordinate system setting of the nutritional infusion device 20 can be flexibly set according to specific actual needs, and the present application does not limit this.

[0057] In some embodiments, the nutritional infusion device 20 may further include a driving assembly 24. The driving assembly 24 may include rollers 241. The rollers 241 may be installed in the installation space 23 and rotatably connected to the housing 21. Exemplarily, the housing 21 may have an installation surface 211, and the operator can operate on the structural members located in the installation space 23 facing the installation surface 211 of the nutritional infusion device 20. In the embodiments of the present application, the rollers 241 may be exposed relative to the installation surface 211 and are arranged close to the bottom side of the nutritional infusion device 20. In other embodiments, the rollers 241 may be arranged close to the top side of the nutritional infusion device 20, or at the middle position of the housing 21, and the present application does not limit this.

[0058] Please refer to Figure 4 、 Figure 5 and Figure 6 , Figure 4 which is Figure 2 a schematic structural diagram of the nutritional infusion tube 10 shown in some embodiments, Figure 5 and Figure 4 is a schematic structural diagram of the nutritional infusion tube 10 shown from another perspective.Figure 6 is Figure 5 a schematic exploded view of the nutrition infusion tube 10 shown in the figure.

[0059] In some embodiments, the nutrition infusion tube 10 may include a peristaltic tube 11, an input tube connector 12, an output tube connector 13, and a delivery tube 14. One end of the input tube connector 12 is connected to the input port 111a of the peristaltic tube 11, and the other end is connected to a delivery tube 14. One end of the output tube connector 13 is connected to the output port 112a of the peristaltic tube 11, and the other end is connected to another delivery tube 14. Among them, by setting the peristaltic tube 11, the input tube connector 12, the output tube connector 13, and the delivery tube 14 to be connected, the pipeline part in the nutrition infusion tube 10 can be assembled into an integrated structure, improving the modularity of the structure in the nutrition infusion tube 10 and facilitating the reduction of the operation difficulty of moving and installing the nutrition infusion tube 10. Among them, the peristaltic tube 11 may be approximately in the shape of a "water droplet". Among them, the input port 111a of the peristaltic tube 11 and the output port 112a of the peristaltic tube 11 respectively represent the openings at both ends of the peristaltic tube 11, and through these openings, the peristaltic tube 11 can be connected to the external space.

[0060] Exemplarily, the peristaltic tube 11 may be made of materials such as silica gel, and has characteristics such as high heat resistance, insulation, reliability, bendability, and flexibility. In the embodiments of the present application, the peristaltic tube 11 can be directly sleeved on the input tube connector 12 and / or the output tube connector 13 by using its elasticity, or can also be connected to the input tube connector 12 and / or the output tube connector 13 by means of glue bonding, ultrasonic welding, etc. In other embodiments, the peristaltic tube 11 and the input tube connector 12 and / or the output tube connector 13 may also be an integrally formed structure, and the present application does not limit this. In some embodiments, the nutrition infusion tube 10 may not include the input tube connector 12 and / or the output tube connector 13 either. One end of the peristaltic tube 11 can be directly connected to a delivery tube 14, and the other end of the peristaltic tube 11 can be directly connected to another delivery tube 14, and the present application does not limit this.

[0061] Exemplarily, the number of the delivery tubes 14 may be 2, 3, or more. As a fluid delivery path, multiple delivery tubes 14 may include an output tube 141 and at least one input tube 142. Multiple input tubes 142 can be respectively used to pour different fluids such as nutrient solution and cleaning solution into the peristaltic tube 11, and then be delivered to the patient via the output tube 141. Among them, the delivery tube 14 may be made of a synthetic material (Polyvinylchlorid, PVC) made by adding other components to polyvinyl chloride or a material such as Thermoplastic polyurethanes (TPU), and the present application does not limit this.

[0062] In some examples, the input tube connector 12 may be a valve mechanism such as a two-way valve with one inlet and one outlet or a three-way valve with two inlets and one outlet. By controlling the position of the valve core in the valve, the connection of the channel between the delivery tube 14 and the peristaltic tube 11 can be controlled. For example, one of the inlets and outlets between the delivery tube 14 and the peristaltic tube 11 can be connected. For another example, the other inlet and outlet between the delivery tube 14 and the peristaltic tube 11 can be connected. Or the channel between the delivery tube 14 and the peristaltic tube 11 can be blocked, so as to realize the on / off and switching of different fluid paths in the nutrition infusion tube 10. The valve mechanism has high flexibility and strong reliability, which helps to improve the reliability of the nutrition infusion tube 10 and the nutrition infusion system 1. Among them, before the nutrition infusion tube 10 is installed on the nutrition infusion device 20 (as Figure 2 shown), the pipeline in the nutrition infusion tube 10 can be in a blocked state. After the nutrition infusion tube 10 is installed on the nutrition infusion device 20, by rotating the angle of the valve core, the three-way / two-way valve is controlled to connect the corresponding pipeline according to the setting to realize the feeding of nutrient solution. After stopping the feeding, by rotating the control three-way / two-way valve core to reset to the blocked state, it is avoided that the nutrition infusion tube 10 flows freely out of control after being removed from the nutrition infusion device 20, so as to improve the reliability and safety of the nutrition infusion system 1. In other embodiments, the input tube connector 12 may also be of other structures, and the present application does not limit this.

[0063] Combined with Figure 2 shown, in the embodiment of the present application, the pipeline of the nutrition infusion tube 10 can be wound around the outer periphery of the roller 241. The roller 241 can generate a certain pressure on the pipeline of the nutrition infusion tube 10. For example, when the nutrition infusion tube 10 is installed in place, the peristaltic tube 11 can be in contact with at least part of the roller 241. When the roller 241 rotates, the peristaltic tube 11 is in a stretched state. When the roller 241 rotates, the roller 241 can generate a driving force on the fluid in the pipeline of the peristaltic tube 11, and push the fluid in the pipeline of the peristaltic tube 11 to flow along the pipeline, so as to transport the nutrients flowing into the peristaltic tube 11 to the patient; when the roller 241 stops rotating, the pressure of the roller 241 on the pipeline of the peristaltic tube 11 is relatively large, and the fluid path in the pipeline of the peristaltic tube 11 is equivalent to being blocked, and the fluid in the pipeline of the peristaltic tube 11 stops flowing forward, so the delivery of nutrients to the patient is stopped.

[0064] In some embodiments, the nutrition infusion tube 10 may further include a support plate 15, and both the input tube connector 12 and the output tube connector 13 are fixed to the support plate 15. By providing the support plate 15 to connect the input tube connector 12 and the output tube connector 13, the support plate 15 can be used to fix the relative positions of the input tube connector 12 and the output tube connector 13, which is beneficial to maintaining the shape of the nutrition infusion tube 10, enabling the flexible pipeline to have a fixed shape and position, facilitating installation, and further improving the integration of the structure of the nutrition infusion tube 10, reducing the operation difficulty of moving the nutrition infusion tube 10.

[0065] Please refer to Figure 5 and Figure 6 , for example, the support plate 15 may have two mounting grooves 155, and the input tube connector 12 and the output tube connector 13 are respectively fixed in the two mounting grooves 155. Among them, the input tube connector 12 and / or the output tube connector 13 may be fixed in the mounting groove 155 by means of snap connection, glue bonding, etc. The mounting groove 155 can limit and position the input tube connector 12 and the output tube connector 13 located therein, and by arranging the input tube connector 12 and the output tube connector 13 in the mounting groove 155, the mounting groove 155 can also support the input tube connector 12 and the output tube connector 13, which is beneficial to improving the strength of the structure at the connection of the input tube connector 12, the peristaltic tube 11, the output tube connector 13 and the delivery tube 14, thereby improving the connection reliability of the nutrition infusion tube 10. Among them, the peristaltic tube 11 may include an annular portion 113 (as shown in Figure 5 ), and the annular portion 113 may be suspended relative to the support plate 15. It can be understood that the annular portion 113 being suspended relative to the support plate 15 means that the annular portion 113 is not subjected to the acting force of the support plate 15, or is not within the acting range of the acting force given by the support plate 15. For example, if there is a support point at each end of the peristaltic tube 11 by the support plate 15, then the annular portion is connected between the support plate 15 and the two support points of the peristaltic tube 11, and is located on the side of the two support points away from the support plate 15. These two support points can also be regarded as the starting points of the annular portion 113. The annular portion 113 may include a first starting point 113a and a second starting point 113b. In the embodiments of the present application, the peristaltic tube 11 section between the input port 111a and the adjacent starting point of the annular portion 113 (the first starting point 113a of the annular portion 113) is denoted as the input section 111 of the peristaltic tube 11 (as shown in Figure 5 ), and the peristaltic tube 11 section between the output port 112a and the adjacent starting point of the annular portion 113 (the second starting point 113b) is denoted as the output section 112 of the peristaltic tube 11 (as shown in Figure 5 ).

[0066] In some embodiments, the nutrition infusion tube 10 may further include an independent expanding member (not shown in the figure). The independent expanding member means that there is no connection relationship between the expanding member and structural members such as the support plate 15, the input tube connector 12, and the output tube connector 13. The annular portion 113 may also be suspended relative to the independent expanding member. At this time, both ends of the expanding member may abut against the peristaltic tube 11, and the annular portion 113 may be located at a portion of the expanding member facing away from the support plate 15. The two starting points of the annular portion 113 may be two acting points of the expanding member on the peristaltic tube 11. In other words, at this time, the annular portion 113 can be understood as a section of the peristaltic tube 11 that is not subjected to the acting force of the expanding member and the support plate 15, or is not within the acting range of the acting force between the expanding member and the support plate 15. Hereinafter, taking the annular portion 113 being suspended relative to the support plate 15 as an example, the related settings of the nutrition infusion tube 10 will be introduced exemplarily. When the annular portion 113 is suspended relative to the expanding member, the related settings of the nutrition infusion tube 10 can be adaptively modified with reference to the following content, and the present application will not elaborate on this again.

[0067] Among them, the arrangement direction of the two mounting grooves 155 may be parallel to the arrangement direction of the input tube connector 12 and the output tube connector 13. In the embodiments of the present application, the input tube connector 12 and the output tube connector 13 may be arranged in the X-axis direction. That is, the two mounting grooves 155 may be arranged in the X-axis direction. In other embodiments, the arrangement direction of the two mounting grooves 155 and the arrangement direction of the input tube connector 12 and the output tube connector 13 may intersect or be perpendicular to the X-axis direction, etc. The embodiments of the present application do not limit this.

[0068] Among them, the support plate 15 may have a top surface 151a (as Figure 4 shown) and a bottom surface 151b (as Figure 5 shown). The top surface 151a and the bottom surface 151b of the support plate 15 are located on opposite sides of the support plate 15 in the Y-axis direction. The bottom surface 151b of the support plate 15 is closer to the mounting surface 211 than the top surface 151a of the support plate 15. The mounting groove 155 can be regarded as being recessed from a part of the bottom surface 151b toward the top surface 151a side.

[0069] Please refer to Figure 2 and Figure 3, In some embodiments, the nutritional infusion device 20 may have two tube grooves 25. After the nutritional infusion tube 10 is installed in the nutritional infusion device 20, both sides of the annular portion 113 can be respectively fixed in the two tube grooves 25. By providing the tube grooves 25 in the nutritional infusion device 20, the tube grooves 25 can limit the extension direction of the pipeline of the peristaltic tube 11, which helps to make the pipeline of the nutritional infusion tube 10 more smoothly wound around the outer periphery of the roller 241. In addition, by setting the tube grooves 25 to fix the relative position of the nutritional infusion tube 10 and the nutritional infusion device 20, it can also avoid problems such as the nutritional infusion tube 10 falling off when external factors, such as an operator accidentally colliding with the nutritional infusion system 1.

[0070] Exemplarily, an ultrasonic bubble sensor 251 can be embedded in the groove wall of the tube groove 25. When the peristaltic tube 11 is embedded in the tube groove 25, the ultrasonic bubble sensor 251 can emit and receive ultrasonic waves, and then judge whether there are bubbles according to the differences in its reflection and propagation, so as to realize the detection of bubbles in the pipeline of the peristaltic tube 11, which is beneficial to improving the safety and reliability of the nutritional infusion system 1.

[0071] Exemplarily, other detection devices such as a pressure sensor 252 can also be provided in the nutritional infusion device 20 to detect other parameters such as the blockage pressure of the pipeline of the peristaltic tube 11, so as to realize the monitoring of the normal and smooth operation of the nutritional infusion system 1, which is convenient for the operator to timely understand and control the working state of the nutritional infusion system 1. The present application does not limit this. In the embodiments of the present application, an ultrasonic bubble sensor 251 and a pressure sensor 252 can be respectively provided in the two tube grooves 25, Figure 2 and Figure 3 only the positions of the ultrasonic bubble sensor 251 and the pressure sensor 252 are schematically shown, and can be designed according to actual needs.

[0072] Exemplarily, the tube groove 25 can be provided on the top side of the roller 241 facing the nutritional infusion device 20. The distance between the ends of the two tube grooves 25 close to the roller 241 can be greater than the distance between the ends of the two tube grooves 25 far from the roller 241. The ends of the two tube grooves 25 close to the roller 241 can be approximately in an "eight" - shaped structure. By setting the shape of the tube groove 25, the good shaping effect of the tube groove 25 on the nutritional infusion tube 10 is utilized, which can help the nutritional infusion tube 10 maintain a bent state similar to a "water droplet shape", facilitating the peristaltic tube 11 to be more smoothly wound around the roller 241. In other embodiments, the relative position of the tube groove 25 and the roller 241 can also be flexibly set according to actual needs. The tube groove 25 can also be linear, curved or other shapes. The present application does not limit this. Or, in some other embodiments, the nutritional infusion device 20 may not be provided with tube grooves 25.

[0073] Please refer toFigure 7 , Figure 7 FIG. 7A shows a partial process diagram of the installation of the nutrition infusion tube 10 provided by an embodiment of the present application on the nutrition infusion device 20. Among them, Figure 7 as shown in 7A, it shows the state where the nutrition infusion tube 10 provided by the embodiment of the present application is just sleeved on the roller 241, Figure 7 and as shown in 7B, it shows the state after the nutrition infusion tube 10 provided by the embodiment of the present application is installed in place.

[0074] The process of installing the nutrition infusion tube 10 on the nutrition infusion device 20 generally may include: sleeving the peristaltic tube 11 on the outer periphery of the roller 241; moving the support plate 15 to stretch the peristaltic tube 11 so that the peristaltic tube 11 can be in contact with at least part of the roller 241; and fixing the nutrition infusion tube 10 to the nutrition infusion device 20.

[0075] In the prior art, when the size of the nutrition infusion tube 10 is made smaller, the elasticity of the peristaltic tube 11 is greater, and the space between the two ends of the peristaltic tube 11 is smaller. The operator needs to cooperate with both hands to first overcome the greater elasticity of the peristaltic tube 11 and pull the peristaltic tube 11 apart before it can be sleeved on the roller 241; moreover, during the process of moving the support plate 15 to stretch the peristaltic tube 11, it is necessary to pinch the upper and lower ends of the support plate 15 (in the embodiment of the present application, that is, the two ends of the support plate in the Z-axis direction) to exert force. During the process of stretching the peristaltic tube 11, the support plate 15 is suspended, which is not easy for the operator to operate and exert force, and the support plate 15 is also likely to deviate from the preset position, affecting the accuracy and reliability of the installation position after the nutrition infusion tube 10 is installed on the nutrition infusion device 20. In addition, during the process of fixing the nutrition infusion tube 10 to the nutrition infusion device 20, the support plate 15 is pressed downward in a direction perpendicular to the roller 241 (in the embodiment of the present application, that is, the Y-axis direction) so that the support plate 15 can be snapped into the structural member provided on the nutrition infusion device 20 for fixing the support plate 15. However, pressing the support plate 15 downward while it is suspended and making it fall vertically easily damages the support plate 15. It can be seen that the assembly process of the prior art is cumbersome, and the operator needs to cooperate with both hands, the operation is relatively inconvenient and the reliability is low.

[0076] Therefore, as Figure 2 , Figure 4 and Figure 5 shown, the embodiment of the present application provides a nutrition infusion tube 10, the structure of which is improved compared with the existing structure, and the nutrition infusion tube 10 allows the operator to install it on the nutrition infusion device 20 with one-handed operation, and the installation process is simple and easy to implement.

[0077] Please refer to Figure 5 and Figure 7As shown, in some embodiments, the peristaltic tube 11 section (i.e., the input section 111) between the input port 111a and the first starting point 113a of the adjacent annular portion 113 is subjected to the outward expansion force of the support plate 15; the peristaltic tube 11 section (i.e., the output section 112) between the output port 112a and the second starting point 113b of the adjacent annular portion 113 is subjected to the outward expansion force of the support plate 15; this outward expansion force is used to increase the distance between the two starting points of the annular portion 113 in the direction perpendicular to the moving direction of the support plate 15. Among them, the direction of the outward expansion force can intersect or be perpendicular to the moving direction of the support plate 15. In the embodiments of the present application, the direction of the outward expansion force intersects or is parallel to the X-axis direction.

[0078] In the embodiments of the present application, by setting the internal structure of the nutrient infusion tube 10, the peristaltic tube 11 can be subjected to the action of the outward expansion force, and the peristaltic tube 11 has a stable shape before the nutrient infusion tube 10 is sleeved on the roller 241 (i.e., when the nutrient infusion tube 10 is in a normal state or not subjected to the acting force of the roller 241 or the external force deformed by the operator). The maximum distance L1 of the peristaltic tube 11 in the first direction can be greater than or equal to the maximum distance L2 between any two points on the roller 241. It can be understood that the maximum distance L1 of the peristaltic tube 11 in the first direction, the maximum distance L1 of the peristaltic tube 11 in the first direction (as Figure 5 shown). The maximum distance L1 between the peristaltic tubes 11 when the nutrient infusion tube 10 is in a normal state is greater than or equal to the maximum distance L2 between any two points on the roller 241 (as Figure 2 shown), so that the peristaltic tube 11 can be easily sleeved on the roller 241, simplifying the process in the prior art where the user needs to overcome the elastic force of the peristaltic tube 11 to expand it before sleeving it on the roller 241, enabling the user to sleeved the nutrient infusion tube 10 on the outer periphery of the roller 241 with one hand, so as to simplify the process of assembling the nutrient infusion tube 10 on the nutrient infusion device 20 and facilitating the operator's use.

[0079] Among them, the first direction can be parallel to the mounting surface 211 of the housing 21. For example, the first direction can be parallel to the X-axis direction. In other embodiments, the first direction can also be parallel to the Y-axis direction or the Z-axis direction, or intersect with the X-axis direction and / or the Y-axis direction and / or the Z-axis direction. The present application does not make any limitations in this regard. In the embodiments of the present application, the arrangement direction of the input tube connector 12 and the output tube connector 13 can be parallel to the X-axis direction, that is, the first direction can be parallel to the arrangement direction of the input tube connector 12 and the output tube connector 13. In other embodiments, the arrangement direction of the input tube connector 12 and the output tube connector 13 can also intersect with the X-axis direction. The embodiments of the present application also do not make any limitations in this regard.

[0080] In the embodiment of the present application, the roller 241 can be approximately cylindrical. The maximum distance L2 between any two points on the roller 241 can also be understood as the length of the diameter of the roller 241. That is, the maximum distance L1 of the peristaltic tube 11 in the first direction can be greater than or equal to the diameter (maximum distance L2) of the roller 241 in the first direction. In this way, the peristaltic tube 11 in the non-deformed state can be sleeved on the outer periphery of the roller 241 with one hand. At this time, the plane where the peristaltic tube 11 is located can be considered parallel to the end face of the roller 241, and the peristaltic tube 11 is directly opposite to the roller 241. The connection line between the two points with the maximum distance on the roller 241 can be parallel to the first direction (that is, the connection line between the two points with the maximum distance on the roller 241 can be parallel to the X-axis direction). Here, the non-deformed state means that no additional external force is applied to the peristaltic tube 11 by the operator. At this time, the peristaltic tube 11 can be in a completely non-deformed state, or there may be a slight deformation due to the supporting effect of other structures inside the nutrition infusion tube 10.

[0081] In the embodiment of the present application, the diameter of the end face of the roller 241 can be 33 mm. Exemplarily, the maximum distance L1 of the peristaltic tube 11 in the first direction when the nutrition infusion tube 10 is in the normal state (which can also be considered as the maximum distance of the annular part 113 in the direction perpendicular to the moving direction of the support plate 15) can be greater than or equal to 33 mm. In other embodiments, the maximum distance L2 between any two points of the roller can also be other values, such as 30 mm, 32 mm, 35 mm, 38 mm, etc. More values. The maximum distance L1 of the peristaltic tube 11 in the first direction when the nutrition infusion tube 10 is in the normal state can be set as needed.

[0082] It can be understood that there may also be an included angle between the connecting line direction of any two points on the roller 241 and the first direction. In the embodiment of the present application, that is, there may be an included angle between the connecting line of the two points with the largest distance on the roller 241 and the X-axis direction. For example, the surface cross-section of the roller 241 may also be other shapes such as an ellipse, a square, a triangle, etc. The maximum distance between any two points on the roller 241 may be the length of the long axis of the roller 241 or the length of the diagonal of the roller 241, etc. During the process of sleeving the peristaltic tube 11 on the outer periphery of the roller 241, the peristaltic tube 11 in the non-deformed state may also be in contact with a part of the outer periphery of the roller 241. Taking the contact point between the roller 241 and the peristaltic tube 11 as the force application point, after slightly deforming the peristaltic tube 11 by moving the support plate 15, another part of the peristaltic tube 11 is then brought into contact with another part of the outer periphery of the roller 241. Among them, the force for moving the support plate 15 to slightly deform the peristaltic tube 11 is much smaller than the maximum force that can be provided by an operator with one hand. At this time, moving the support plate 15 can be understood as rotating or translating the support plate 15 at any angle to adjust the support plate 15 to a state directly facing the mounting surface 211, so that one side of the support plate 15 in the Z-axis direction can be parallel to the X-axis direction, or the arrangement direction of the two sides of the support plate 15 in the X-axis direction can be parallel to the X-axis direction.

[0083] Please refer to Figure 5 、 Figure 7 and Figure 8 as shown in Figure 8 which is Figure 6 a schematic structural diagram of the support plate 15 shown in another angle.

[0084] In some embodiments, the support plate 15 may include a plate body 151 and a support member 154. The support member 154 may be disposed on the side of the plate body 151 facing the roller 241. The support member 154 may abut against the peristaltic tube 11 to prevent the input section 111 of the peristaltic tube 11 (as shown in Figure 5 ) from Figure 5The mutual approach (as shown) enables the maximum distance L1 of the peristaltic tube 11 in the first direction (i.e., the X-axis direction) to be greater than or equal to the maximum distance L2 between any two points of the roller 241 when the nutrient infusion tube 10 is in its normal state. For example, the number of the support members 154 can be two. The two support members 154 can be arranged at intervals on the same side of the plate body 151. The two support members 154 can respectively abut against the starting point of one end of the annular portion 113 and the starting point of the other end of the annular portion 113. In the embodiment of the present application, the abutting force exerted by the two support members 154 on the peristaltic tube 11 is the outward expansion force of the inner pipeline of the peristaltic tube 11 by the support plate 15, which is used to increase the distance between the two starting points of the annular portion 113 in the moving direction perpendicular to the support plate 15 (i.e., in the X-axis direction), so that the maximum distance L1 of the peristaltic tube 11 in the first direction can be greater than or equal to the maximum distance L2 between any two points of the roller 241, facilitating the operator to hold the nutrient infusion tube 10 with one hand and easily sleeving it on the roller 241. In some embodiments, the two support members 154 can also be arranged on the corresponding two sides of the plate body 151. For example, the two support members 154 can also be arranged on the corresponding two sides of the plate body 151 in the X-axis direction. The present application does not make any limitation in this regard.

[0085] In some embodiments, the plate body 151 and / or the support members 154 can be made of materials such as acrylonitrile-butadiene-styrene copolymer (ABS) resin, having relatively high strength and toughness. The present application does not make any specific limitation on the materials of the plate body 151 and the support members 154. Among them, the support members 154 can be connected to the plate body 151 by means of glue bonding, welding, etc., or the support members 154 and the plate body 151 can also be of an integral structure. The embodiments of the present application do not make any limitation in this regard.

[0086] Please refer to Figure 7 and Figure 9 as shown, Figure 9 which is a schematic diagram of the nutrient infusion tube 10 provided by the embodiment of the present application during the installation process. Among them, Figure 9 the sizes, positions, etc. of the structural members such as the peristaltic tube 11 and the support members 154 in the nutrient infusion tube 10 shown in

[0087] When an external force is applied to cause the support plate 15 to move away from the roller 241, the peristaltic tube 11 will be stretched and elongated as the support plate 15 moves until the support plate 15 reaches a preset position, and the peristaltic tube 11 is straightened and abuts against at least part of the roller 241. Among them, the state where the peristaltic tube 11 is in a straightened state can be understood as the state where the peristaltic tube 11 is just straightened, that is, when the pulling force is about to be generated but not yet generated, and the state between when the peristaltic tube 11 is stretched and about to break. During this process, the maximum distance of the peristaltic tube 11 in the first direction can be considered to be gradually decreasing. In the embodiment of the present application, the support member 154 can have a certain elastic deformation ability, that is, the support member 154 can deform as the peristaltic tube 11 is stretched and elongated to adapt to different maximum distances L1 of the peristaltic tube 11 in the first direction, and can avoid the support member 154 from obstructing the peristaltic tube 11 during its movement or even piercing the peristaltic tube 11.

[0088] In some embodiments, the support plate 15 can have a center line O. The center line O of the support plate 15 can be perpendicular to the first direction (that is, in the embodiment of the present application, the center line O can be perpendicular to the X-axis direction). After the nutrient infusion tube 10 is installed on the nutrient infusion device 20, the center line O can pass through the rotation center of the roller 241. The two ends of the peristaltic tube 11 can be axisymmetric with the center line O as the axis of symmetry, and the two support members 154 can be axisymmetric with the center line O to ensure uniform stress on both ends of the peristaltic tube 11. In some other embodiments, the two support members 154 may not be axisymmetrically arranged, and the present application does not limit this.

[0089] As Figure 8 shown, exemplarily, the support member 154 can include a connecting portion 1541, a bending portion 1542, and a supporting portion 1543 connected in sequence. The connecting portion 1541 is fixedly connected to the plate body 151. The supporting portion 1543 is spaced from the plate body 151, and the supporting portion 1543 abuts against the annular portion 113. The bending portion 1542 is connected between the connecting portion 1541 and the supporting portion 1543, and the bending portion 1542 is in a bent shape. By setting the bending portion 1542 to be in a bent shape, the anti-bending performance of the support member 154 can be improved, the stress buffering effect can be achieved, and the support member 154 can be prevented from breaking during deformation. In some other embodiments, the support member 154 may not include the bending portion 1542, and the support member 154 can be approximately in a straight line or other shapes and abut between the peristaltic tube 11 and the plate body 151. The embodiment of the present application does not limit the shape of the support member 154.

[0090] In some embodiments, the projection of the support portion 1543 on the plate body 151 covers at least a portion of the corresponding mounting opening 155a. By setting the projection of the support portion 1543 on the plate body 151 to partially or completely cover the corresponding mounting opening 155a, it is possible to ensure that the length of the support member 154 is sufficient to open the peristaltic tube 11, and change the maximum spacing of the peristaltic tube 11 in the first direction when the nutrition infusion tube 10 is in normal state.

[0091] Please refer to Figure 4 , Figure 5 and Figure 8 In some embodiments, illustratively, the support member 154 may include a connecting portion 1541, a bending portion 1542 and a supporting portion 1543 connected in sequence, the connecting portion 1541 is fixedly connected to the plate body 151, the supporting portion 1543 is spaced apart from the plate body 151, and the supporting portion 1543 abuts against the annular portion 113 of the peristaltic tube 11, the bending portion 1542 is connected between the connecting portion 1541 and the supporting portion 1543, and the bending portion 1542 is curved. Among them, the spacing of the supporting portion 1543 and the plate body 151 can be understood as a gap between the supporting portion 1543 and the plate body 151. By setting the bending portion 1542 in a curved shape, the anti-bending performance of the support member 154 can be improved, the stress buffering effect can be achieved, and the support member 154 can be prevented from breaking when deformed. In some other embodiments, the support member 154 may not include the bending portion 1542 , and the support member 154 may be approximately straight or in other shapes, abutting between the peristaltic tube 11 and the plate 151 . The embodiment of the present application does not limit the shape of the support member 154 .

[0092] In some examples, along the connection direction of the connection portion 1541, the bending portion 1542 and the support portion 1543, the width of the bending portion 1542 is smaller than the width of the connection portion 1541 and / or the width of the support portion 1543; and / or, a hollow area is provided in the bending portion 1542. By setting the bending portion 1542 to be narrower or lighter than the connection portion 1541 and the support portion 1543, the bending portion 1542 is easier to deform, that is, the ability of the support member 154 to deform during the stretching and elongation process of the peristaltic tube 11 can be improved, so as to improve the reliability of the support member 154 abutting against the peristaltic tube 11.

[0093] In some embodiments, the orthographic projection of the support portion 1543 toward the plate body 151 covers at least a portion of the corresponding mounting opening 155a. By setting the projection of the support portion 1543 on the plate body 151 to partially or completely cover the corresponding mounting opening 155a, it is possible to ensure that the length of the support member 154 is sufficient to open the peristaltic tube 11, and change the maximum spacing of the peristaltic tube 11 in the first direction when the nutrition infusion tube 10 is in normal state.

[0094] Please refer to Figure 4 ,Figure 5 and Figure 8 In some embodiments, the support portion 1543 may include a main body portion 1543a, a first flap 1543b, and a second flap 1543c. The first flap 1543b and the second flap 1543c are fixed to opposite sides of the main body portion 1543a, and the peristaltic tube 11 is located on the main body portion 1543a between the first flap 1543b and the second flap 1543c. By providing the first flap 1543b and the second flap 1543c, the first flap 1543b and the second flap 1543c can surround at least a part of the outer periphery of the peristaltic tube 11 to limit and prevent the peristaltic tube 11 from moving in its radial direction and disengaging from the support member 154, which can improve the connection reliability of the support portion 1543 abutting against the peristaltic tube 11. In some embodiments, the support portion 1543 may also not include the first flap 1543b and / or the second flap 1543c, and the embodiments of the present application do not limit this.

[0095] Exemplarily, the orthographic projection of the first flap 1543b in the direction towards the plane where the second flap 1543c is located is staggered from the second flap 1543c, which is beneficial to reducing the manufacturing difficulty of the support member 154 and facilitating the mold opening for manufacturing the support member 154.

[0096] In addition, when the nutrient infusion tube 10 is installed on the nutrient infusion device 20, the second flap 1543c may be closer to the bottom surface 151b of the support plate 15 than the first flap 1543b. The second flap 1543c can be used to block the peristaltic tube 11 from disengaging from the installation groove 155. By setting the distance between the first flap 1543b and the connecting portion 1541 to be less than the distance between the second flap 1543c and the connecting portion 1541, and / or by making the size of the second flap 1543c larger than the size of the first flap 1543b, etc., the area surrounded by the second flap 1543c in the circumferential direction of the peristaltic tube 11 is larger, which is beneficial for the second flap 1543c to achieve a better blocking effect.

[0097] In the embodiments of the present application, the maximum distance between the two support portions 1543 in the first direction may be in the range of 24 mm to 34 mm. Exemplarily, the maximum distance between the two support portions 1543 may be 24 mm, 26 mm, 30 mm, 34 mm, etc. By setting the range of the maximum distance between the two support portions 1543, it can ensure that the length of the support member 154 is sufficient to support the peristaltic tube 11 while preventing the support member 154 from being too large, which may cause interference with other structural members on the nutrient infusion device when the support member 154 deforms during the installation process. In other embodiments, the maximum distance between the two support portions 1543 in the first direction may also be set according to actual needs, and the present application does not limit this.

[0098] Please refer to Figure 2 andFigure 3 As shown, on the mounting surface 211, structures such as bosses or grooves can also be provided to divide the installation space 23 into several interconnected regions with different depths, so as to better arrange and install structural members of different sizes in the installation space 23. In some examples, the installation space 23 can include a first installation space 23a, a second installation space 23b, and a third installation space 23c that are connected in sequence in the Z-axis direction. In the Y-axis direction, the depth of the first installation space 23a is greater than the depth of the second installation space 23b, and the depth of the third installation space 23c is greater than the depth of the second installation space 23b. Exemplarily, in the embodiments of the present application, the mounting surface 211 can also be considered to be divided into a first mounting surface 211a, a second mounting surface 211b, and a third mounting surface 211c. The first mounting surface 211a is located in the first installation space 23a, the second mounting surface 211b is located in the second mounting surface 211b, and the third mounting surface 211c is located in the third mounting surface 211c. The first mounting surface 211a, the second mounting surface 211b, and the third mounting surface 211c have the same orientation and are staggered from each other.

[0099] In the embodiments of the present application, the roller 241 can be arranged in the first installation space 23a, and the pipe groove 25 can be arranged on the second mounting surface 211b of the second installation space 23b, as Figure 2 and Figure 3 shown. When the nutrition infusion tube 10 is installed in place, the support plate 15 can be located in the third installation space 23c, and a part of the peristaltic tube 11 is embedded in the pipe groove 25 in the second installation space 23b. The peristaltic tube 11 can be straightened and kept in contact with at least a part of the roller 241. Among them, the first installation space 23a, the second installation space 23b, and the third installation space 23c can also be divided into multiple sub-installation spaces with different depths, and the present application does not limit this. In other embodiments, the dimensional relationship between the first installation space 23a, the second installation space 23b, and the third installation space 23c can be different from that in the embodiments of the present application, and the installation space 23 can be divided into more or fewer regions, and the present application does not limit this.

[0100] In some embodiments, one of the nutrition infusion device 20 and the support plate 15 includes a guide rail, and the other includes a guide groove; for applying an external force to make the support plate 15 move in a direction away from the roller 241 to reach a preset position, it can be achieved by applying an external force to make the support plate 15 move in a direction perpendicular to the first direction and move along the mating track of the guide rail and the guide groove to reach the preset position. Through the cooperation of the guide rail and the guide groove, the limit of the movement track of the support plate 15 can be realized, and the accuracy of the installation position of the support plate 15 is improved.

[0101] For example, please refer to Figure 3 and Figure 5, in the embodiment of the present application, the nutrition infusion device 20 may include a guide rail 30, and the support plate 15 may include a guide groove 31. During the process of applying an external force to move the support plate 15 away from the roller 241, the guide rail 30 can be embedded in the guide groove 31, and the support plate 15 can move along the extension path of the guide rail 30. In other embodiments, the nutrition infusion device 20 may include a guide groove 31, and the support plate 15 may include a guide rail 30. During the process of applying an external force to move the support plate 15 away from the roller 241, the guide rail 30 can be embedded in the guide groove 31, and the support plate 15 can move along the extension path of the guide groove 31. Among them, the guide groove 31 may be provided between two mounting grooves 155. In other embodiments, the number of guide grooves 31 provided on the support plate 15 may also be two, three or more, and the guide groove 31 may also be provided at other positions on the support plate 15. The present application does not limit this.

[0102] Exemplarily, the moving direction of the support plate 15 may include a second direction and a third direction, and any two of the first direction, the second direction, and the third direction are perpendicular to each other; the guide rail 30 may include a first guide rail 301 and a second guide rail 302. The first guide rail 301 is closer to the roller 241 than the second guide rail 302. There is a step between the first guide rail 301 and the second guide rail 302, and the extension directions of the first guide rail 301 and the second guide rail 302 are both parallel to the second direction.

[0103] In the embodiment of the present application, the first guide rail 301 may be installed on the second mounting surface 211b in the second mounting space 23b, and the extension direction of the first guide rail 301 may be parallel to the Z-axis direction. The second guide rail 302 may be installed on the third mounting surface 211c in the third mounting space 23c, and the extension direction of the second guide rail 302 may be parallel to the Z-axis direction. Among them, the third mounting space 23c is "sunk" relative to the second mounting space 23b, that is, there is a step between the first guide rail 301 and the second guide rail 302, and the first guide rail 301 protrudes relative to the second guide rail 302.

[0104] Adaptively, as Figure 5 shown, the guide groove 31 may include a first guide groove 311 and a second guide groove 312 arranged along the second direction (that is, the Z-axis direction). When the nutrition infusion tube 10 is installed on the nutrition infusion device 20, the first guide groove 311 is closer to the roller 241 than the second guide groove 312 (as Figure 3 shown), there may also be a step between the first guide groove 311 and the second guide groove 312. The second guide groove 312 may protrude relative to the first guide groove 311 and cooperate with the step between the first guide rail 301 and the second guide rail 302. Among them, the moving direction of the support plate 15 is defined by the extension direction of the guide groove 31, and the extension direction of the guide groove 31 is the moving direction of the support plate 15.

[0105] After the nutrition infusion tube 10 is installed on the nutrition infusion device 20, when an external force is applied to cause the support plate 15 to move in the second direction, the first guide rail 301 is inserted into the first guide groove 311. When an external force is applied to cause the support plate 15 to move in the third direction, the connection between the first guide groove 311 and the second guide groove 312 abuts against the connection between the first guide rail 301 and the second guide rail 302.

[0106] By setting the cooperation of the continuously arranged guide rails 30 and guide grooves 31, during the movement of the support plate 15, the guide rails 30 can support and limit the movement of the support plate 15, improving the accuracy of the installation position of the nutrition infusion tube 10 during the installation process on the nutrition infusion device 20. Moreover, by setting the guide grooves 31 in a stepped shape, the thickness of the support plate 15 at the second guide groove 312 can be made thinner, which is beneficial to saving manufacturing costs.

[0107] In some examples, the guide rail 30 may further include a third guide rail 303. The third guide rail 303 can be connected between the first guide rail 301 and the second guide rail 302. The third guide rail 303 can be perpendicular to the second mounting surface 211b and the third mounting surface 211c. The third guide rail 303 serves as a transition section, which is beneficial to avoiding the process of the support plate 15 hanging and dropping. When the support plate 15 moves in the third direction (i.e., the Y-axis direction), it can play a role in supporting and limiting the support plate 15.

[0108] In some other embodiments, the first guide rail 301 and the second guide rail 302 can also be linearly connected. In other words, in some other embodiments, the guide rail 30 may not include the third guide rail 303. This application does not make any limitations in this regard. In addition, when the nutrition infusion device 20 includes guide grooves and the support plate 15 is provided with guide rails, the guide rails can also be formed by connecting multiple tracks with different sizes or a straight-connected track, which can be set according to actual needs. This application does not make any limitations in this regard.

[0109] In some embodiments, the number of guide grooves 31 is one. The two mounting grooves 155 are respectively arranged on both sides of the guide groove 31, which is beneficial to making full use of the space between the two mounting grooves 155, improving the space utilization rate of the support plate 15, facilitating the reduction of the size of the support plate 15, realizing the miniaturization of the nutrition infusion tube 10, and also facilitating the operator to exert force. Moreover, the two mounting grooves 155 are closer to the edge of the support plate 15 relative to the guide groove 31, which also facilitates the installation of both ends of the peristaltic tube 11 into the mounting grooves 155. Among them, the guide groove 31 can be arranged on the center line O of the support plate 15 or close to the center line O of the support plate 15.

[0110] In some embodiments, as Figure 7 shown, the top surface 151a of the support plate 15 (such as Figure 4) may be provided with a slope 151c, and in the direction away from the annular portion 113 of the peristaltic tube 11 (that is, the Z-axis direction), the slope 151c and the bottom surface 151b (as shown in FIG. Figure 5 In the embodiment of the present application, the slope 151c can also be considered to extend upward from the side of the support plate 15 close to the roller 241 to the side of the support plate 15 away from the roller 241.

[0111] By setting the slope 151c, the slope 151c can be used as a fulcrum to apply an external force to make the support plate 15 move in a direction away from the roller 241. The slope 151c can decompose the force applied by the operator thereon into a force component parallel to the mounting surface 211 of the nutrition infusion device 20 for pushing / pulling the support plate 15 to lengthen the peristaltic tube 11, and a force component perpendicular to the nutrition infusion device 20 for making the support plate 15 close to the nutrition infusion device 20, so that the support plate 15 always sticks to the mounting surface 211 of the nutrition infusion device 20, thereby avoiding the problem in the prior art that the operator needs to hold the two ends of the support plate 15 by hand to move the support plate 15, and the force component in the direction of the force easily causes the support plate 15 to separate from the nutrition infusion device 20, thereby improving the reliability of the installation process.

[0112] Please refer to Figure 3 and Figure 4 In some embodiments, the nutrition infusion device 20 may further include a fixing component 26, which may be fixed to the housing 21 and located on the side of the tube groove 25 away from the roller 241. Exemplarily, a through hole or the like may be provided in the fixing component 26, and the support plate 15 of the nutrition infusion tube 10 may include a protrusion 152, which may be fixed to the top of the plate body 151, and the protrusion 152 may be embedded in the fixing component 26 to fix the relative position of the support plate 15 and the fixing component 26, thereby limiting the relative position of the nutrition infusion tube 10 and the nutrition infusion device 20. Among them, the protrusion 152 and the plate body 151 may be an integrated structure, or an integrated structure formed by welding, glue bonding, etc. The protrusion 152 may be made of materials such as acrylonitrile-butadiene-styrene copolymer (ABS) resin, which has high strength and toughness. The present application does not specifically limit the materials of the protrusion 152 and the plate body 151. In other embodiments, the protrusion 152 may also be located at other positions of the plate body 151, or the protrusion 152 may not be included in the nutrition infusion tube 10. The support plate 15 of the nutrition infusion tube 10 may cooperate with the fixing component 26 through other structures to achieve positioning, which is not limited in the embodiments of the present application.

[0113] It can be understood that during the process of embedding the bump 152 into the fixing component 26, since the bump 152 has a certain elasticity, it can be squeezed and deformed. When the support plate 15 is installed in place, the bump 152 can return to its original state and be clamped in the fixing component 26. Alternatively, the bump 152 can still be in a compressed state, and the deformation recovery force of the bump 152 can also be used to push against the fixing component 26 to improve the tightness of the connection between the fixing component 26 and the bump 152.

[0114] Exemplarily, in the direction from the top surface 151a of the support plate 15 towards the bottom surface 151b of the support plate 15, the distance from the surface of the bump 152 facing away from the plate body 151 to the plate body 151 gradually decreases. It can be understood that in the direction from the top surface 151a of the support plate 15 towards the bottom surface 151b of the support plate 15, that is, in the extending direction of the third guide rail 303, setting the distance from the surface of the bump 152 facing away from the plate body 151 to the plate body 151 to gradually decrease is beneficial to squeezing the bump 152 into the fixing component 26 during the movement of the support plate 15 along the third guide rail 303. In some examples, the nutrient infusion tube 10 may further include a pressing member 156, and the pressing member 156 can be elastically connected between the bump 152 and the plate body 151 to provide a deformation space for the bump 152 during the process of the bump 152 being squeezed into the fixing component 26. For example, the pressing member 156 can be approximately in the shape of a "bow", or in the shape of a partial structure approximately in the shape of a "bow", or the pressing member 156 can also have a hollow area inside to enable it to provide a larger deformation space for the bump 152. In addition, when disassembling the nutrient infusion tube 10 from the nutrient infusion device 20, the pressing member 156 can also be pressed to make the bump 152 disengage from the fixing component 26.

[0115] In some embodiments, the nutrient infusion device 20 may further include a locking member 27. The support plate 15 may be provided with a locking hole 153, and the locking member 27 can be embedded in the locking hole 153 to achieve the limiting effect on the nutrient infusion tube 10. Among them, the locking member 27 can be slidably connected or rotatably connected to the housing 21. By rotating or moving the locking member 27, the limiting of the support plate 15 in other directions can be achieved. It can be understood that, for example, in the embodiments of the present application, such as Figure 2As shown, a first baffle and a second baffle are provided in the locking hole 153 at intervals along the Z-axis direction. In the initial position, the locking member 27 can extend along the X-axis direction. At this time, the locking member 27 can be embedded in the space between the first baffle and the second baffle to prevent the support plate 15 from moving relative to the housing 21 in the Z-axis direction. By rotating the locking member 27 and changing the position of the locking member 27, the locking member 27 can also extend along the Z-axis and abut between the first baffle and the second baffle to prevent the support plate 15 from moving relative to the housing 21 in the Y-axis direction. In the embodiments of the present application, the connection manner between the locking member 27 and the housing 21, the relative position between the locking member 27 and the locking hole 153, etc. are not limited. In some other embodiments, the nutritional infusion system 1 may not include the locking member 27 and the locking hole 153 either, and the present application does not limit this either.

[0116] In some embodiments, an in-place identification element 16 (such as Figure 6 shown) may also be provided in the nutritional infusion tube 10. A detection element (not shown in the figure) may be provided in the nutritional infusion device 20. The detection element may be a Hall sensor. Using the Hall effect principle, the Hall sensor can feedback the magnitude of the magnetic field around it by the output Hall voltage value. When the nutritional infusion tube 10 is installed in the nutritional infusion device 20, there is a difference between the voltage value output by the Hall sensor when installed and the voltage value output by the Hall sensor when not installed, thereby realizing the detection of the installation state of the nutritional infusion tube 10. In addition, the Hall sensor can also be used to identify the type of the nutritional infusion tube 10 installed on the nutritional infusion device 20. For example, when the valve structure in the nutritional infusion tube 10 is a two-way valve, the "N" pole of the in-place identification element 16 in the nutritional infusion tube 10 can be set to face the Hall sensor. For another example, when the valve structure in the nutritional infusion tube 10 is a three-way valve, the "S" pole of the in-place identification element in the nutritional infusion tube 10 can be set to face the Hall sensor. Thus, when different nutritional infusion tubes 10 are installed on the same nutritional infusion device 20, the Hall voltage values detected by the Hall sensor are also different, so as to identify different types of nutritional infusion tubes 10. In some other embodiments, the detection of whether the nutritional infusion tube 10 is installed on the nutritional infusion device 20 can also be realized by setting a touch switch, a photoelectric sensor, etc. in the nutritional infusion device 20. Exemplarily, the locking hole 153 and the in-place identification element 16 can be located between the guide groove 31 and the installation groove 155 for installing the output tube connector 13. It can be understood that the size of the input tube connector 12 is generally larger than the size of the output tube connector 13. By arranging the locking hole 153 and the in-place identification element 16 close to the output tube connector 13, it is beneficial to make full use of the space in the support plate 15, so as to realize the miniaturization setting of the support plate 15 and the nutritional infusion tube 10, which is convenient for the operator to operate with one hand.

[0117] In some embodiments, the nutritional infusion device 20 may further be provided with a switching member 28. A reversing groove 121 may be provided in the valve structure of the nutritional infusion tube 10. The switching member 28 may be embedded in the reversing groove 121 of the valve structure to drive the valve core of the valve structure to rotate, thereby controlling the switching of the valve core between different positions to achieve the on / off and switching of the fluid passage in the nutritional infusion tube 10, which is beneficial to reducing the difficulty for the operator to use the nutritional infusion system 1.

[0118] In the foregoing embodiment, taking the example of providing the support member 154 in the support plate 15, corresponding design for the nutritional infusion tube 10 has been made. In other embodiments, the nutritional infusion tube 10 may not include the support member 154, and the outward expansion force can also be provided by changing other structures in the nutritional infusion tube 10, such as the input tube connector 12 and / or the output tube connector 13, to prevent the output section 112 of the peristaltic tube 11 and the input section 111 of the peristaltic tube 11 from approaching each other in the first direction.

[0119] For example: Please refer to Figure 10 , Figure 10 is a schematic structural diagram of another nutritional infusion tube 10 provided by an embodiment of the present application. In some embodiments, the input tube connector 12 may include a first port 122 and a second port 123. The first port 122 is used to connect to at least one delivery tube 14, and the second port 123 is used to connect to the peristaltic tube 11. The first port 122 is bent relative to the second port 123; and / or, the output tube connector 13 may include a third port 131 and a fourth port 132. The third port 131 is used to connect to another delivery tube 14, and the fourth port 132 is used to connect to the peristaltic tube 11. The third port 131 is bent relative to the fourth port 132. By changing the shape of the input tube connector 12 and / or the output tube connector 13, it can also be used to prevent the output section 112 of the peristaltic tube 11 and the input section 111 of the peristaltic tube 11 from approaching each other in the first direction, so that the maximum distance L1 between any two points of the peristaltic tube 11 in the first direction when the nutritional infusion tube 10 is in the normal state can be greater than or equal to the maximum distance L2 between any two points of the roller 241 (as Figure 2 shown).

[0120] It can be understood that Figure 10Among them, the second port 123 is located within the installation groove 155, and the second port 123 is also inside the installation groove 155. In some embodiments, the second port 123 can also be flush with or extend out of the installation opening 155a; and / or, the fourth port 132 is installed in another installation opening 155a and is flush with or extends out of the other installation opening 155a. The closer the second port 123 is to the roller 241, the stronger the supporting force of the input tube connector 12 on the peristaltic tube 11 and the greater the influence on its shape. Also, the closer the fourth port 132 is to the roller 241, the stronger the supporting force of the output tube connector 13 on the peristaltic tube 11 and the greater the influence on its shape. By setting the second port 123 and / or the fourth port 132 to be flush with or extend out of the installation opening 155a, it is beneficial to ensure that the maximum distance L1 between any two points of the peristaltic tube 11 is greater than the maximum distance L2 between any two points of the roller 241 when the nutritional infusion tube 10 is in a normal state.

[0121] In some other embodiments, the orientation of at least a portion of the peristaltic tube 11 from the input tube connector 12 and / or the output tube connector 13 to the installation opening 155a can also be changed by adding grooves on the support plate 15 or changing the space on the support plate 15. For example, a transverse tube groove (not shown in the figure) can be provided such that the extending direction of the transverse tube groove intersects or is perpendicular to the extending direction of the guide groove 31, so that the groove wall of the transverse tube groove can provide an outward expansion force to increase the distance between the two starting points of the annular portion 113 along the direction perpendicular to the extending direction of the guide groove 31 (i.e., the X-axis direction), enabling the peristaltic tube 11 to be easily sleeved on the roller 241 while having a smaller size, simplifying the installation process of the nutritional infusion tube 10 and facilitating the operator's use. The present application does not limit this.

[0122] The above are only some embodiments and implementation manners of the present application. The protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A nutritional infusion tube, characterized in that, The nutrient infusion tube includes a peristaltic tube, an input tube connector, an output tube connector, a delivery tube, and a support plate; The support plate is provided with a guide groove and two mounting grooves, and the two mounting grooves are respectively arranged on both sides of the guide groove; The guide groove is used to provide a guiding function when the support plate moves; The input port of the peristaltic tube is connected to one end of the input tube connector, the other end of the input tube connector is connected to at least one of the delivery tubes, and the input tube connector is located in one of the mounting grooves. The output port of the peristaltic tube is connected to one end of the output tube connector, the other end of the output tube connector is connected to the other delivery tube, and is located in the other mounting groove. Between the input port and the output port, the peristaltic tube further includes an annular portion that is suspended relative to the support plate or an independent expansion member; The peristaltic tube section between the input port and the starting point of the adjacent annular portion is subjected to an outward expansion force from the support plate, the input tube connector, or the independent expansion member; The peristaltic tube section between the output port and the starting point of the adjacent annular portion is subjected to an outward expansion force from the support plate, the output tube connector, or the independent expansion member; The outward expansion force has a component along a direction perpendicular to the extension direction of the guide groove to increase the distance between the two starting points of the annular portion along the direction perpendicular to the extension direction of the guide groove.

2. The nutritional infusion tube according to claim 1, wherein The guide groove is arranged on the center line of the support plate, or the guide groove is arranged close to the center line of the support plate.

3. The nutritional infusion tube according to claim 1, wherein The nutrient infusion tube further includes a locking hole and / or an in-position identification element, which is located between the guide groove and the mounting groove for installing the output tube connector.

4. The nutritional infusion tube according to claim 1, wherein The support plate has a top surface and a bottom surface, the top surface and the bottom surface are located on opposite sides of the support plate, and the top surface has a slope; in the direction away from the annular portion of the peristaltic tube, the distance between the slope and the bottom surface gradually increases.

5. The nutritional infusion tube according to claim 1, wherein The support plate has a top surface and a bottom surface, the top surface and the bottom surface are located on opposite sides of the support plate, the mounting groove is arranged on the bottom surface, the support plate includes a plate body and a convex block, the convex block is arranged at the top end of the plate body, and in the direction from the top surface of the support plate towards the bottom surface of the support plate, the distance from the surface of the convex block facing away from the plate body to the plate body gradually decreases.

6. The nutritional infusion tube according to any one of claims 1 to 5, characterized in that The support plate includes a plate body and two support members; The two mounting grooves and the guide groove are all arranged on the plate body, and the two support members are arranged at intervals on the same side of the plate body or are respectively arranged on opposite sides of the plate body; One of the support members abuts against the starting point of one end of the annular portion, and the other support member abuts against the starting point of the other end of the annular portion to increase the distance between the two starting points of the annular portion along the direction perpendicular to the extension direction of the guide groove.

7. The nutritional infusion tube according to any one of claims 1 to 5, characterized in that, In the input tube connector, the port for connecting to the delivery tube is bent relative to the port for connecting to the peristaltic tube; and / or in the output tube connector, the port for connecting to the delivery tube is bent relative to the port for connecting to the peristaltic tube.

8. The nutritional infusion tube according to any one of claims 1 to 5, characterized in that, The support plate includes two mounting openings and a transverse pipe groove. The mounting openings are used for the peristaltic tube to pass through and then be connected to the input tube connector and the output tube connector respectively. The extending direction of the transverse pipe groove intersects or is perpendicular to the extending direction of the guide groove. Among them, at least part of the section of the peristaltic tube between the input tube connector or the output tube connector and the corresponding mounting opening will be arranged along the transverse pipe groove.

9. The nutritional infusion tube according to any one of claims 1 to 5, characterized in that, The maximum distance of the annular part in the extending direction of the guide groove is greater than or equal to 33 mm.

10. The nutritional infusion tube according to any one of claims 1 to 5, characterized in that, Both ends of the annular part are axially symmetric with the center line of the support plate as the axis of symmetry.

11. A nutritional infusion tube, characterized in that, The nutrient infusion tube includes a peristaltic tube, an input tube connector, an output tube connector, a delivery tube, and a support plate. The support plate is provided with a guide groove and two mounting grooves, and the two mounting grooves are respectively arranged on both sides of the guide groove. The guide groove is used to provide a guiding function when the support plate moves. The input port of the peristaltic tube is connected to one end of the input tube connector. The other end of the input tube connector is connected to at least one delivery tube, and the input tube connector is located in one mounting groove. The output port of the peristaltic tube is connected to one end of the output tube connector. The other end of the output tube connector is connected to the other delivery tube and is located in the other mounting groove. Between the input port and the output port, the peristaltic tube further includes an annular part that is suspended relative to the support plate or an independent outward expansion member. The maximum distance of the annular part in the direction perpendicular to the extending direction of the guide groove is greater than or equal to 33 mm.

12. A nutritional infusion tube, characterized in that, The nutrient infusion tube includes a peristaltic tube, an input tube connector, an output tube connector, a delivery tube, and a support plate. The support plate is provided with a guide groove and two mounting grooves, and the two mounting grooves are respectively arranged on both sides of the guide groove. The guide groove is used to provide a guiding function when the support plate moves. The input port of the peristaltic tube is connected to one end of the input tube connector. The other end of the input tube connector is connected to at least one delivery tube, and the input tube connector is located in one mounting groove. The output port of the peristaltic tube is connected to one end of the output tube connector. The other end of the output tube connector is connected to the other delivery tube and is located in the other mounting groove. Between the input port and the output port, the peristaltic tube further includes an annular part that is suspended relative to the support plate. The support plate further includes a plate body and two support members. The two support members are spaced apart and arranged on the bottom side of the plate body and extend toward the annular part. One of the support members abuts against the starting point of one end of the annular part, and the other support member abuts against the starting point of the other end of the annular part to increase the distance between the two starting points of the annular part in the direction perpendicular to the extending direction of the guide groove.

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