Thyroid drainage tube and drainage apparatus

Abstract

The application discloses a thyroid drainage tube and drainage apparatus, the thyroid drainage tube comprises: a main tube in which a drainage channel is formed; the core tube is inserted into the drainage channel, and the drainage channel comprises a main flow channel located in the core tube; the reinforcing ribs are arranged around the core pipe, the reinforcing ribs are connected with the core pipe and the flow guide pipe in the extending direction perpendicular to the core pipe and the flow guide pipe, the drainage channel comprises a plurality of auxiliary flow channels surrounding the main flow channel, and the adjacent reinforcing ribs, the core pipe and the flow guide pipe define the auxiliary flow channels. Compared with the prior art, the core tube and the main tube are connected at intervals through the reinforcing ribs, directional supporting and shape limiting effects are provided for the drainage tube, the multiple independent auxiliary flow channels are formed in the circumferential direction, the structural stability and the flow channel redundancy are enhanced, and the safety and reliability of thyroid postoperative drainage are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical auxiliary devices, in particular to a thyroid drainage tube and a drainage device. BACKGROUND

[0002] Drainage devices are a kind of medical devices commonly used in surgical operations and wound treatment, and their main function is to drain blood, fluid and other fluids in the surgical area or lesion area out of the body to reduce local tension, reduce the risk of infection and promote wound healing. A conventional drainage device generally includes a drainage tube placed in the patient's body and a drainage container connected thereto, and the two are connected through a catheter and a connector. The drainage tube is usually made of flexible material, and a plurality of side holes are provided on the part of the tube wall placed in the body. After the drainage liquid enters the lumen, it is transported to the external drainage container through the catheter under the action of negative pressure or gravity. The drainage device of this structure has been widely used in chest and abdominal surgery, surface and other body cavity surgery, and can achieve basic drainage unobstructed in the case of relatively straight or slightly curved drainage path.

[0003] In thyroidectomy, adenoma resection and other anterior neck region surgeries, the above-mentioned conventional silicone or plastic drainage tube is also commonly used, which is placed through a surgical incision near the incision or another small skin incision, and is connected with a negative pressure drainage bottle and other devices to continuously or intermittently drain blood, fluid and lymph from the surgical area to prevent hematoma and fluid accumulation in the anterior neck region.

[0004] However, the thyroid and anterior neck region have the characteristics of shallow anatomical position, large degree of activity, close relationship with head and neck movement, etc. The postoperative drainage tube usually needs to be pulled out of the skin from the anterior neck incision or its vicinity, and then extended to the outside of the body along the neck soft tissue path. This path often has a large bending angle and is repeatedly pulled by the patient's neck flexion, extension and rotation. The general drainage tube made of flexible material is prone to folding, bending or local collapse at the subcutaneous passage of the neck in the above-mentioned use environment, resulting in partial or complete obstruction of the lumen. Therefore, there is an urgent need for a drainage tube or drainage device with stronger anti-bending ability and the ability to maintain unobstructed drainage in the complex curved path of the anterior neck in the field of thyroid surgery. SUMMARY

[0005] One object of the present application is to provide a thyroid drainage tube and a drainage device, which aims to solve the technical problem that the existing thyroid drainage tube is prone to bending and obstruction due to activity.

[0006] To achieve the above-mentioned object, in a first aspect, the present application provides a thyroid drainage tube, comprising: a main tube, a drainage passage being formed in the main tube; a core tube, the core tube being inserted into the drainage passage, the drainage passage comprising a main flow passage located in the core tube; The reinforcing ribs are arranged around the core pipe and connect the core pipe and the guide pipe in the extension direction perpendicular to the core pipe and the guide pipe, and the drainage channel comprises a plurality of sub-flow channels around the main flow channel, and the adjacent reinforcing ribs, the core pipe and the guide pipe enclose the sub-flow channels.

[0007] In combination with the first aspect, according to an embodiment of the present application, the main pipe and the core pipe are coaxially arranged and extend in the first direction, and the reinforcing ribs extend spirally around the core pipe.

[0008] In combination with the first aspect, according to an embodiment of the present application, a plurality of flow-converging holes are formed in the core pipe, and the sub-flow channel comprises a sub-flow flow channel, and the sub-flow flow channel is in communication with the main flow channel through the flow-converging holes.

[0009] In combination with the first aspect, according to an embodiment of the present application, each sub-flow flow channel corresponds to a plurality of flow-converging holes, the cross section of the flow-converging holes extends in the extension direction of the sub-flow flow channel, and the plurality of flow-converging holes are distributed at intervals in the extension direction of the sub-flow flow channel.

[0010] In combination with the first aspect, according to an embodiment of the present application, the sub-flow channel comprises a liquid supply flow channel, the liquid supply flow channel is arranged separately from the sub-flow flow channel and the main flow channel, and a liquid injection hole is formed in the guide pipe at a region corresponding to the liquid supply flow channel.

[0011] In combination with the first aspect, according to an embodiment of the present application, the length of the core pipe is shorter than the length of the main pipe, and the sub-flow channel and the main flow channel are in communication at one end of the liquid inlet to form a parallel flow space.

[0012] In combination with the first aspect, according to an embodiment of the present application, the core pipe has multiple segments and is distributed at intervals, and the sub-flow channel and the main flow channel form a parallel flow space between the adjacent two segments of the core pipe.

[0013] In combination with the first aspect, according to an embodiment of the present application, the main pipe extends in the first direction, and the projection length of each reinforcing rib in the first direction is equal to the length of the main pipe.

[0014] In the second aspect, the present application further provides a thyroid gland drainage device, comprising: a drainage pipe, which is the thyroid gland drainage pipe in the above-mentioned embodiments; and a negative pressure device connected with the drainage pipe, used for forming a negative pressure in the drainage pipe for suction.

[0015] In combination with the second aspect, according to an embodiment of the present application, the sensor is arranged in the sub-flow channel; the sensor has a plurality of sensors arranged in different sub-flow channels or upstream and downstream positions of the sub-flow channel; and / or the sensor is a pressure sensor, a visual sensor, a flow rate sensor or a flow sensor. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0017] Figure 1 is an exploded structural schematic diagram of a thyroid drainage tube provided by the embodiments of the present application; Figure 2 is a cross-sectional schematic diagram of a thyroid drainage tube provided by the embodiments of the present application; Figure 3 is a longitudinal section schematic diagram of a thyroid drainage tube provided by the embodiments of the present application; Figure 4 is a liquid flow relationship schematic diagram of a thyroid drainage device provided by the embodiments of the present application.

[0018] Explanation of reference numerals: 10, main pipe; 20, drainage channel; 21, main flow channel; 22, auxiliary flow channel; 30, core pipe; 31, flow converging hole; 40, reinforcing rib; 50, flow converging space. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Drainage devices are a kind of medical devices commonly used in surgical operations and wound treatment, and their main function is to drain blood, fluid and the like in the surgical area or lesion area out of the body, so as to reduce local tension, reduce the risk of infection and promote wound healing. A conventional drainage device generally comprises a drainage tube placed in the patient's body and a drainage container connected thereto, and the two are in communication through a catheter and a connector. The drainage tube is usually made of flexible material, and the part of the tube wall placed in the patient's body can be provided with a plurality of side holes to allow the drainage liquid to enter the lumen, and then under the action of negative pressure or gravity, it is transported to the body outside the drainage container through the catheter.

[0021] After thyroidectomy, adenoma resection and other operations in the anterior cervical region, bleeding, effusion and even lymphatic fluid accumulation often occur in the surgical gap. In order to timely lead out the above-mentioned liquid and prevent the anterior cervical hematoma from compressing the trachea and affecting respiration, a drainage device is generally placed before the end of thyroid surgery. The existing post-thyroid drainage mostly uses conventional silica gel or plastic drainage tubes, which are placed through the incision or a small incision made by skin incision, and the distal end of the drainage tube is connected with a negative pressure drainage bottle or other drainage device to use continuous or intermittent negative pressure to suck out the fluid in the surgical area. Such drainage device can achieve basic unobstructed drainage in general straight or slightly curved path, and can also be used in conventional body surface or body cavity surgery.

[0022] However, the thyroid and anterior cervical region have the characteristics of superficial anatomical position, large activity, close relationship with head and neck movement, etc. The postoperative drainage tube usually needs to be pulled out of the skin from the anterior cervical incision or its vicinity, and then extended to the outside along the cervical soft tissue path, which often accompanies a large bending angle and is repeatedly pulled by the patient's neck flexion, extension and rotation.

[0023] The flexible drainage tube of the related technology is prone to folding, bending or local collapse at the subcutaneous passage of the neck in the above use environment, resulting in partial or complete blockage of the lumen, and unobstructed drainage will cause the blood and exudate in the surgical area to be unable to be discharged in time, which is easy to form or aggravate the anterior cervical hematoma and exudate accumulation, affecting wound healing, and may also cause compression to the trachea, increasing the risk of respiratory difficulty and secondary intervention. At the same time, the flow rate in the lumen of the bending part is also reduced, which is easy to promote the deposition of blood clots and fibrin, aggravate the blockage problem, and affect the drainage effect and postoperative safety.

[0024] Therefore, in the field of thyroid surgery, there is an urgent need for a drainage tube or drainage device with greater bending resistance.

[0025] Please refer to Figures 1 to 4 , Figure 1 is an exploded structural schematic diagram of a thyroid drainage tube provided by the embodiments of the present application; Figure 2 is a cross-sectional schematic diagram of a thyroid drainage tube provided by the embodiments of the present application; Figure 3 is a longitudinal sectional schematic diagram of a thyroid drainage tube provided by the embodiments of the present application; Figure 4 is a liquid flow relationship schematic diagram of a thyroid drainage device provided by the embodiments of the present application.

[0026] To solve the above technical problems, in a first aspect, the present application provides a thyroid drainage tube, comprising: a main tube 10, a drainage passage 20 is formed in the main tube 10; a core tube 30, which is inserted into the drainage passage 20, the drainage passage 20 comprises a main flow passage 21 located in the core tube 30; The reinforcing ribs 40 are arranged around the core tube 30 and connect the core tube 30 and the guide tube in the direction perpendicular to the extension direction of the core tube 30 and the guide tube, and the drainage channel 20 comprises a plurality of auxiliary flow channels 22 arranged around the main flow channel 21, and the adjacent reinforcing ribs 40, the core tube 30 and the guide tube enclose the auxiliary flow channels 22.

[0027] In the present application, the reinforcing ribs 40 are arranged around the core tube 30, and the reinforcing ribs 40 connect the core tube 30 and the main tube 10 in the direction perpendicular to the extension direction of the core tube 30 and the main tube 10, so that the main tube 10, the core tube 30 and the reinforcing ribs 40 jointly form a three-dimensional support framework. On the one hand, the framework structure improves the bending resistance and collapse resistance of the whole drainage tube, so that the drainage tube can still maintain the shape stability and smoothness of the drainage channel 20 under the conditions of frequent bending and stretching and rotating of the neck of the patient, and avoids the situation that the drainage is not smooth due to local folding or collapse. On the other hand, the reinforcing ribs 40, the core tube 30 and the main tube 10 enclose a plurality of auxiliary flow channels 22 arranged around the main flow channel 21, and the drainage channel 20 is composed of the main flow channel 21 and the plurality of auxiliary flow channels 22. When the main flow channel 21 is partially blocked, the circumferentially distributed auxiliary flow channels 22 can still provide bypass flow paths, effectively improving the redundancy and fault tolerance of the drainage tube and reducing the risk of complete blockage of the whole drainage channel 20, so as to maintain relatively continuous and stable drainage effect under the conditions of complex pre-neck anatomy and large activity frequency and bending strength.

[0028] Compared with the prior art, the core tube 30 and the main tube 10 are connected by the reinforcing ribs 40 in the present application, which not only provides directional support and shape limiting for the drainage tube, but also forms a plurality of independent auxiliary flow channels 22 in the circumferential direction, realizing the dual effects of structural support and multi-path drainage. The existing flexible drainage tube is prone to folding and collapse at the bending or pressure part when it is bent and laid along the subcutaneous part of the neck after thyroid surgery, resulting in the whole tube being disabled once the single lumen is blocked. The drainage tube of the present application has a grid-type support and a plurality of auxiliary flow channels 22 arranged around the main flow channel 21, so that the lumen deformation can be significantly reduced even under the conditions of large bending radius and repeated mechanical pulling, and the auxiliary flow channels 22 can still maintain part or even most of the flow when the main flow channel 21 is blocked, thereby effectively reducing the probability of drainage failure, pre-neck hematoma or effusion formation, and improving the safety and reliability of post-thyroid surgery drainage.

[0029] In addition, in the specific embodiment structure shown in the drawings, in the drainage tube of the present embodiment, the main flow channel 21 is a regular cylindrical lumen, and each of the plurality of auxiliary flow channels 22 arranged around the main flow channel 21 is enclosed by the core tube 30, the main tube 10, and the reinforcing ribs 40 to form an irregular cross-sectional shape with sharp corners, and generally the cross-sectional area of each auxiliary flow channel 22 is smaller than that of the main flow channel 21. Since the auxiliary flow channels 22 are jointly defined by the plurality of reinforcing ribs 40 and the inner and outer cylindrical walls, the local wall thickness and support points are relatively more concentrated, and under the same external force, the structural strength is higher and is less likely to collapse or flatten, thereby being less likely to be completely blocked when bent than a single large lumen structure.

[0030] It should also be pointed out that, taking the example of the core tube 30 and the main tube 10 being coaxial cylinders, the reinforcing ribs 40 are distributed in the circumferential direction and enclose a plurality of auxiliary flow channels 22 around the main flow channel 21, and each of the auxiliary flow channels 22 has a different spatial orientation in the cross section, and the weak bending direction thereof is also different from each other. When the drainage tube is subjected to a large bending moment or external pressure in a certain direction, some of the auxiliary flow channels 22 may be significantly flattened or deformed in the direction of the force, but other auxiliary flow channels 22 that are at an angle to or even approximately perpendicular to the direction can still maintain a relatively complete cross-sectional shape and basic conduction capability, thereby maintaining a certain drainage patency through the auxiliary flow channels 22 that are not significantly compressed under extreme pressure and severe bending conditions, further ensuring the overall bending resistance and safety redundancy.

[0031] In combination with the first aspect, according to an embodiment of the present application, the main tube 10 and the core tube 30 are coaxially arranged and extend along a first direction, and the reinforcing ribs 40 extend spirally around the core tube 30.

[0032] In the present embodiment, the main tube 10 and the core tube 30 are coaxially arranged and extend along a first direction, and the reinforcing ribs 40 extend spirally around the core tube 30 along the direction. In addition to the improvement of the strength of the drainage tube by the reinforcing ribs 40, due to the spiral distribution of the reinforcing ribs 40, the local weak bending direction of the drainage tube at different cross sections continuously rotates and changes, avoiding the problem that the traditional reinforcing structure arranged in a fixed direction is prone to show a significant bending weak point in a certain direction. Even under the bending moment and pressure continuously or repeatedly acting in a certain direction, the stress direction of each cross section of the drainage tube will also migrate and disperse along the axial direction, and the overall bending resistance performance is more balanced and relatively uniform in all directions, thereby reducing the risk of being bent and blocked in a certain direction.

[0033] In combination with the first aspect, according to an embodiment of the present application, a plurality of flow converging holes 31 are formed in the core tube 30, and the auxiliary flow channel 22 includes an auxiliary flow channel, and the auxiliary flow channel communicates with the main flow channel 21 through the flow converging hole 31.

[0034] In this embodiment, the core tube 30 is provided with multiple manifolds 31, allowing the auxiliary flow channel to connect with the main flow channel 21 through the manifolds 31. This not only achieves initial diversion between the main flow channel 21 and the auxiliary flow channel at the inlet position where the drainage fluid enters the drainage tube from the wound, but also forms a multi-point connected lateral diversion channel path in the extension direction of the drainage channel 20. When the main flow channel 21 is blocked at a certain local position, the fluid upstream of the blocked section can be laterally diverted from the main flow channel 21 into the auxiliary flow channel through the manifolds 31 at the adjacent position. This effectively reduces the risk of interruption of the overall drainage function due to blockage of a section of the main flow channel 21, and significantly improves the redundancy and continuous unobstructed flow capability of the drainage path.

[0035] For example, when the main channel 21 is partially or completely blocked, since the auxiliary channel is connected to the main channel 21 through the manifold 31, more liquid in the main channel 21 will be forced to flow into the auxiliary channel through the manifold 31, causing significant changes in fluid parameters such as flow velocity, pressure, and flow rate distribution in the auxiliary channel. By arranging monitoring elements such as pressure sensors, flow sensors, or velocity sensors in the auxiliary channel, abnormal fluctuations in the above parameters can be detected in real time, thereby achieving indirect and effective monitoring of the blockage state of the main channel 21, and thus triggering an alarm to clear the drainage pipe or straighten the bend.

[0036] In conjunction with the first aspect, according to one embodiment of this application, each auxiliary flow channel corresponds to a plurality of confluence holes 31, the cross-section of the confluence holes 31 extends along the extension direction of the auxiliary flow channel, and the plurality of confluence holes 31 are spaced apart in the extension direction of the auxiliary flow channel.

[0037] In this embodiment, each auxiliary flow channel corresponds to multiple confluence holes 31 spaced apart along its extension direction and with cross-sections extending along the direction of the auxiliary flow channel, thus forming multiple axial connections between the main flow channel 21 and each auxiliary flow channel. When blockage occurs upstream of the main flow channel 21, the upstream liquid can be laterally diverted into the auxiliary flow channel through the adjacent confluence holes 31, and then flow back to the main flow channel 21 downstream of the blockage through subsequent confluence holes 31, thereby achieving effective bypassing of the blockage area and maintaining a continuous and unobstructed flow path. Since a local high-speed flow section is formed only in the auxiliary flow channel near the blockage area, the remaining areas unaffected by the blockage maintain a relatively stable flow state, which improves the emergency crossing capability for local blockages and avoids causing excessive disturbance to the overall flow field.

[0038] In conjunction with the first aspect, according to one embodiment of this application, the secondary flow channel 22 includes a liquid supply channel, which is isolated from the auxiliary flow channel and the main flow channel 21, and an injection hole is opened in the area of ​​the liquid guide tube corresponding to the liquid supply channel.

[0039] In clinical practice, there is a need to inject fluids into body cavities at specific points during or after surgery. Examples include local irrigation, injection of antibiotic solutions to control infection, injection of hemostatic or vasoconstrictor drugs to reduce bleeding, or injection of contrast agents for imaging enhancement. If these procedures rely solely on intravenous injection, the drugs need to circulate systemically to indirectly reach the lesion, resulting in slow onset of action, limited local effective concentrations, and potentially increased risk of systemic adverse reactions. In this embodiment, the secondary drainage channel 22 includes a fluid delivery channel, which is isolated from the main channel 21 and the auxiliary channel. An injection port is provided in the area of ​​the catheter corresponding to the fluid delivery channel, allowing medical personnel to directly inject saline, antibiotic solutions, hemostatic agents, contrast agents, etc., into the lesion or surgical area around the catheter without interfering with the continuous drainage function of the main channel 21.

[0040] By integrating the fluid administration function into the secondary drainage channel 22 of this drainage device, medical staff can directly administer targeted, continuous, or intermittent local medication and irrigation to the target cavity through the existing drainage tube, without the need for additional independent infusion catheters, thus reducing repeated punctures and catheterization procedures. Furthermore, this significantly increases local drug concentration and accelerates drug onset; compared to simple intravenous administration, it helps reduce systemic drug dosage and systemic adverse reactions; and it allows for flexible adjustment of the type and dosage of infusion based on changes in drainage fluid, thereby improving overall treatment safety and ease of operation.

[0041] It should be understood that the end of the infusion channel away from the insertion section of the drainage tube can be sealed during production or use to ensure that the injection solution can be stably delivered to the target cavity.

[0042] In conjunction with the first aspect, according to one embodiment of this application, the length of the core tube 30 is shorter than the length of the main tube 10, and the secondary flow channel 22 and the main flow channel 21 are connected at their liquid inlet ends to form a parallel flow space.

[0043] This embodiment provides a specific diversion structure for the drainage tube. In use, the fluid to be drained first enters a parallel flow space with a large cross-sectional area, and then is diverted into the main flow channel 21 and the secondary flow channel 22. Through this structural design, the fluid diffuses first and then diverts within the parallel flow space, creating a relatively stable and predictable diversion ratio between the main and secondary flow channels. This makes drainage easier to control and helps ensure sufficient drainage, thereby improving the overall safety and reliability of the device.

[0044] In conjunction with the first aspect, according to one embodiment of this application, the core tube 30 has multiple segments that are spaced apart, and the secondary flow channel 22 and the main flow channel 21 form a parallel flow space between two adjacent segments of the core tube 30.

[0045] In this embodiment, the fluid to be drained sequentially passes through multiple parallel flow spaces, repeatedly undergoing a process of convergence and diversion. This allows for a self-regulating diversion relationship between the main flow channel 21 and the secondary flow channel 22. On the one hand, even if a temporary blockage or compression occurs at a local location, adjacent parallel flow spaces can still redistribute the flow to a certain extent, reducing instantaneous flow fluctuations and improving the continuity and reliability of the overall drainage process. On the other hand, blood clots and tissue debris tend to be dispersed and reduced in size during the diversion and return process, further reducing the risk of blockage of the drainage channel 20. Thus, the overall drainage process becomes gentler and more controllable, further enhancing the safety and applicability of the drainage tube in long-term placement or complex surgical scenarios.

[0046] Furthermore, the main tube 10 extends in the first direction, and the projected length of each reinforcing rib 40 in the first direction is equal to that of the main tube 10.

[0047] Therefore, along the entire length of the main tube 10, the reinforcing rib 40 divides the core tube 30 into a continuously extending secondary flow channel 22 (the secondary flow channel 22 partially opens towards the main flow channel 21 within the confluence space 50). The reinforcing rib 40 guides and restricts the flow of liquid along its entire length, causing the return flow from the secondary flow channel 22 to flow tangentially into the main flow channel 21 at a relatively fixed direction and velocity (or the diverted flow from the main flow channel 21 to flow tangentially into the secondary flow channel 22 at a relatively fixed direction and velocity). This creates a more concentrated shear flow field and vortex region in the confluence space 50, improving the efficiency of tearing and breaking down blood clots and tissue debris attached to the tube wall or rib edge. The debris is further refined and carried out with the flow, reducing the possibility of accumulation in a local area. Thus, without significantly increasing the overall flow velocity and pressure burden, the risk of channel blockage is further reduced, and the self-cleaning and unobstructed performance under long-term retention is optimized.

[0048] Secondly, this application also provides a thyroid drainage device, comprising: a drainage tube, wherein the drainage tube is the thyroid drainage tube of the above embodiment; and a negative pressure device connected to the drainage tube for creating negative pressure within the drainage tube for suction.

[0049] In conjunction with the second aspect, according to one embodiment of this application, a sensor is also included, which is disposed within the secondary flow channel 22; there are multiple sensors, which are respectively disposed within different secondary flow channels 22 or at upstream and downstream positions of the secondary flow channel 22; and / or, the sensor is a pressure sensor, a vision sensor, a flow velocity sensor, or a flow rate sensor, and this application also provides one or more of these.

[0050] In this embodiment, the sensor is placed in the secondary flow channel 22 rather than directly intruding into the main flow channel 21 of the main flow channel 10, so that the flow cross section and flow pattern in the main flow channel 21 are basically unaffected by the sensor body, thereby avoiding the formation of additional resistance, turbulence or new blockage points caused by the insertion of the detection element; at the same time, the secondary flow channel 22 receives the body fluid diverted from the main flow channel 21, and its pressure, flow rate and flow rate changes can reflect the overall drainage status and blockage trend in real time.

[0051] By arranging multiple pressure sensors, visual sensors, and flow rate / volume sensors at different secondary channels 22 or upstream and downstream of the same secondary channel 22, multi-point and segmented monitoring of the drainage process can be achieved. On the one hand, the differences in upstream and downstream parameters can be compared to determine whether there is local stenosis, blockage, or abnormal backflow. On the other hand, the monitoring results of multiple secondary channels 22 can be integrated to assess the overall working status of the drainage tube and the changes in risk during long-term indwelling. Thus, without significantly altering the flow pattern of the main channel 21, online perception and early warning of the drainage effect are achieved, improving the intelligence level of the device and the safety and controllability of clinical use.

[0052] The beneficial effects of the second aspect described above can be referred to in the first aspect or any possible implementation of the first aspect, and will not be elaborated here. Based on the implementations provided in the above aspects, this application can also be further combined to provide more implementations.

[0053] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0054] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0055] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0056] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the design concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A thyroid drainage tube, characterized by, The application relates to a thyroid drainage device, which comprises: a main pipe (10) in which a drainage channel (20) is formed; a core pipe (30) inserted into the drainage channel (20), wherein the drainage channel (20) comprises a main flow channel (21) in the core pipe (30); a reinforcing rib (40) arranged around the core pipe (30), wherein the reinforcing rib (40) connects the core pipe (30) and the drainage pipe in the direction perpendicular to the extension direction of the core pipe (30) and the drainage pipe, and the drainage channel (20) comprises a plurality of auxiliary flow channels (22) around the main flow channel (21), and the adjacent reinforcing rib (40), core pipe (30) and drainage pipe enclose the auxiliary flow channels (22).

2. The thyroid drainage tube of claim 1, wherein, The main pipe (10) and the core pipe (30) are coaxially arranged and extend along a first direction, and the reinforcing rib (40) spirally extends around the core pipe (30).

3. The thyroid drainage tube of claim 1, wherein, A plurality of flow converging holes (31) are formed in the core pipe (30), and the auxiliary flow channels (22) comprise auxiliary flow channels (22) which are in communication with the main flow channel (21) through the flow converging holes (31).

4. The thyroid drainage tube of claim 3, wherein, Each auxiliary flow channel (22) corresponds to a plurality of flow converging holes (31), and the cross section of the flow converging holes (31) extends along the extension direction of the auxiliary flow channel (22), and the flow converging holes (31) are distributed in the extension direction of the auxiliary flow channel (22).

5. The thyroid drainage tube of claim 3, wherein, The auxiliary flow channels (22) comprise liquid supply channels (22) which are separately arranged from the auxiliary flow channels (22) and the main flow channel (21), and a liquid injection hole is formed in the region of the drainage pipe corresponding to the liquid supply channels (22).

6. The thyroid drainage tube of claim 1, wherein, The length of the core pipe (30) is shorter than the length of the main pipe (10), and the auxiliary flow channels (22) are in communication with the main flow channel (21) at one end of the liquid inlet, thereby forming a co-current space.

7. The thyroid drainage tube of claim 6, wherein, The core pipe (30) has a plurality of sections and is distributed in intervals, and the auxiliary flow channels (22) and the main flow channel (21) form the co-current space between the adjacent two sections of the core pipe (30).

8. The thyroid drainage tube of claim 6, wherein, The main pipe (10) extends in a first direction, and the projection length of each reinforcing rib (40) in the first direction is equal to the length of the main pipe (10).

9. A thyroid drainage device, comprising: a drainage pipe, which is the thyroid drainage pipe according to any one of claims 1-8; a negative pressure device connected with the drainage pipe and used for forming a negative pressure in the drainage pipe for suction.

10. The thyroid drain of claim 9, wherein, A sensor is further arranged in the auxiliary flow channel (22). The sensor has a plurality of types, and is arranged in different auxiliary flow channels (22) or upstream and downstream positions of the auxiliary flow channels (22); and / or the sensor is one or more of a pressure sensor, a visual sensor, a flow rate sensor or a flow sensor.

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