An intelligent drainage tube structure for thyroid surgery and a method of using the same

Abstract

This invention relates to the technical field of medical devices, and discloses an intelligent drainage tube structure and its usage method for thyroid surgery. It includes a Y-shaped drainage tube head with two drainage tube bodies extending in opposite directions for draining accumulated blood and fluid from the body. It can simultaneously drain blood and fluid from both surgical wounds. The drainage tube bodies have a spiral design, making them less prone to clogging. The two drainage tube bodies can intertwine to form a twisted shape for easy removal. Several anti-blocking blades are installed within matching drainage tube bodies. Each blade has a lead screw extending along the axis of the drainage tube body for drainage. An anti-blocking blade disc is fitted onto the lead screw and moves reciprocally along its axis. When the flow rate is lower than a preset threshold in the microprocessor, it is determined that the drainage tube body is blocked by accumulated blood and fluid, and the anti-blocking blade disc within the drainage tube body is controlled to move reciprocally along its axis to break up the blockage. This invention can promptly determine whether the drainage tube is draining accumulated blood and fluid normally.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, specifically to an intelligent drainage tube structure for thyroid surgery and its usage method. Background Technology

[0002] Drainage tubes are widely used in general surgery, from superficial procedures like thyroid and breast surgeries to intra-abdominal surgeries such as hepatobiliary, gastrointestinal, and colorectal surgeries. Postoperative placement of drainage tubes is routine in all these procedures. Thyroid surgery is particularly challenging because the area is richly vascularized, making postoperative wound bleeding common. Furthermore, the trachea, recurrent laryngeal nerve, common carotid artery, and veins are located in this area, making them extremely vulnerable to compression and damage. The narrow space in the neck also increases the risk of hematoma formation if postoperative bleeding is obstructed, potentially leading to tracheal compression, asphyxiation, and even death – extremely serious complications. Therefore, ensuring unobstructed drainage after thyroid surgery is crucial.

[0003] A drainage tube is placed at the thyroid surgery site and connected to the outside of the body through the surgical incision or a separate incision in the neck. However, to date, there is no dedicated thyroid surgery drainage tube in general surgery; various other drainage tubes are used as substitutes, such as thinner T-tubes or abdominal drainage tubes. At the same time, these substitute drainage tubes share a common drawback: they are not well-suited for drainage after thyroid surgery.

[0004] T-tubes are expensive and have a rigid tube diameter, which can easily cause damage to neck tissues such as pressure and friction. The drainage hole is also prone to blockage. Furthermore, when removing a T-tube, the drainage tube will fold to increase its diameter, making removal difficult and resulting in poor patient comfort. In contrast, abdominal drainage tubes are generally thicker (usually 1 cm or even thicker), requiring an additional large incision in the neck. The resulting wound after tube removal is larger, and the scar after healing is also larger, causing significant damage to the patient's appearance. Moreover, abdominal drainage tubes are mostly single tubes, and patients who have undergone bilateral thyroid surgery need to have two drainage tubes placed to ensure adequate drainage.

[0005] To address the aforementioned technical problems, Chinese patent document (publication number CN202666157U) discloses a thyroid drainage tube, comprising a drainage tube body and a drainage tube connector. One end of the drainage tube body is a drainage section, and the other end is a connecting end. One end of the drainage tube connector is a connecting tube end, and the other end is an accessory connecting end. The drainage section has side holes on its wall, and the connecting end is connected to the connecting tube end. The drainage tube in the above technical solution achieves drainage for bilateral thyroid surgeries through the drainage section and the connecting end. Furthermore, the side holes on the drainage section increase the drainage capacity, effectively draining accumulated blood and fluid from the thyroid surgical site.

[0006] However, in practical applications, the inventors discovered that the side holes of the drainage tube are easily blocked by larger contents of the accumulated blood and fluid when draining the blood and fluid. This causes the drainage flow to gradually decrease until all the side holes or openings of the drainage tube are blocked. At this point, medical staff may judge that the accumulated blood and fluid has been drained and remove the drainage tube from the patient. The remaining accumulated blood and fluid will then be stored in the patient's thyroid area, causing infection or hematoma. Therefore, there is an urgent need for an intelligent drainage tube structure and its usage method for thyroid surgery that can promptly determine whether the drainage tube is draining accumulated blood and fluid normally. Summary of the Invention

[0007] The present invention aims to provide an intelligent drainage tube structure and its usage method for thyroid surgery, which can simultaneously drain bilateral thyroid surgical wounds. The spiral design makes it less prone to blockage. When removed, the tubes can be intertwined to form a single drainage tube for easy removal. Furthermore, the invention can promptly determine whether the drainage tube is draining accumulated blood and fluid and can address the issue in a timely manner.

[0008] To achieve the above objectives, various aspects of this application may be implemented in one or more of the following embodiments: 1) An intelligent drainage tube structure for thyroid surgery, comprising: The Y-shaped drainage tube head is placed at the surgical site of the patient's thyroid. It has two drainage tubes that extend in opposite directions and are used to drain accumulated blood and fluid from the body. The two drainage tubes can be twisted together to form a twisted shape. Several arch-breaking blades are installed in matching drainage tubes. Each tube has a lead screw that extends along the axis of the drainage tube and guides the flow. An arch-breaking blade disc that reciprocates along the axis of the lead screw is fitted on the lead screw. The arch-breaking blade disc can break up and guide the discharge from the blood and fluid in the drainage tube along the axial direction. The monitoring unit is located on the end face of the anti-blocking disc facing the direction of blood and fluid flow. It monitors the flow rate of blood and fluid in the matching drainage tube in real time and obtains the flow rate value of blood and fluid in different drainage tubes. The flow rate value is sent to the microprocessor. When the flow rate value is lower than the preset threshold in the microprocessor, it is determined that there is blood and fluid blockage in the drainage tube, and the anti-blocking disc in the drainage tube is controlled to move back and forth along its axis to perform anti-blocking treatment.

[0009] The present invention uses a monitoring unit installed inside the drainage tube in the Y-shaped drainage tube head and mounted on the end face of the arch-breaking blade plate that moves along the axis inside the drainage tube. The end face of the arch-breaking blade plate is directly opposite to the flow direction of the accumulated blood and fluid, so that the monitoring unit can obtain the flow velocity of the accumulated blood and fluid in different drainage tubes along the axial direction in real time, thereby obtaining the flow velocity value in different drainage tubes. When the flow rate is lower than the preset threshold in the microprocessor, it is determined that there may be a blockage in the blood and fluid in the drainage tube. At this time, the microprocessor will control the arch-breaking impeller to move back and forth along the axis of the drainage tube to break the arch. During the process, the monitoring unit on the arch-breaking impeller also moves back and forth along the axis of the drainage tube. When the flow rate value sent by the monitoring unit to the microprocessor in real time suddenly exceeds the preset threshold, it is determined that the blockage of blood and fluid in the drainage tube has been resolved; otherwise, it is determined that the blood and fluid in the thyroid surgical site of the patient has been drained. Therefore, the present invention can determine in a timely manner whether the drainage tube is draining blood and fluid normally.

[0010] 2) According to the intelligent drainage tube structure for thyroid surgery described in 1), the Y-shaped drainage tube head has two drainage tube bodies extending in opposite directions for draining accumulated blood and fluid from the body, namely a first drainage tube body and a second drainage tube body. The first drainage tube body and the second drainage tube body are corrugated tube structures. The outer surface of the first drainage tube body is provided with a spiral protrusion extending in a spiral shape along its axial direction. The outer surface of the second drainage tube body is provided with a spiral groove extending in a spiral shape along its axial direction. The spiral protrusion can be embedded into the spiral groove along its spiral line, so that the first drainage tube body and the second drainage tube body can be intertwined to form a twisted roll shape.

[0011] Compared to existing thyroid drainage tubes, which are prone to blockage due to their smooth inner surface, this invention employs a corrugated tube structure with several spiral grooves extending spirally along its axial direction on the inner surfaces of the first and second drainage tube bodies. These spiral grooves on the inner surfaces of the first and second drainage tube bodies can effectively drain accumulated blood and fluid. Furthermore, even if one spiral groove becomes blocked, the remaining spiral grooves can continue to drain the accumulated blood and fluid. Therefore, this invention is less prone to blockage during use. Secondly, in this invention, after the first and second drainage tubes have completed the drainage of blood and fluid from the patient's thyroid surgical site, the spiral protrusion on the outer surface of the first drainage tube is inserted into the spiral groove on the outer surface of the second drainage tube by rotation. This causes the first and second drainage tubes to intertwine and form a twisted shape. The significant overlap between the two significantly reduces the original diameter of the drainage tubes, making it easier to remove the drainage tubes. The first and second drainage tubes will not exert pulling force on the skin on both sides of the patient's thyroid surgical site, thus reducing the patient's pain when removing the drainage tubes.

[0012] 3) An intelligent drainage tube structure for thyroid surgery as described in 2), wherein: The Y-shaped drainage tube head also includes a mixing tube body. One end of the mixing tube body is integrally formed with the first drainage tube body and the second drainage tube body to form a Y-shaped connection end. The other end of the mixing tube body is provided with an inner spiral sleeve. The outer surface of the inner spiral sleeve has an outer spiral groove that extends spirally along the axial direction. An outer spiral sleeve is fitted onto the outer surface of the inner spiral sleeve. The inner surface of the outer spiral sleeve has an inner spiral groove that extends spirally along the axial direction. The inner spiral groove and the outer spiral groove are threaded together so that the outer spiral sleeve is fixed on the outer surface of the inner spiral sleeve. The port of the outer spiral sleeve away from the inner spiral sleeve is integrally formed with the drainage tube body.

[0013] This invention integrates the first and second drainage tubes into a Y-shaped connection end using a hybrid tube body. Compared to the T-shaped drainage tube in the prior art, the Y-shaped connection end is easier to place inside the patient's thyroid surgical site and exerts less pulling force on the endothelial tissue of the thyroid surgical site. The first and second drainage tubes are used to drain blood and fluid from different locations within the patient's thyroid surgical site. After placing the Y-shaped connector at the patient's thyroid surgical site, the inner spiral sleeve of the other end of the mixed tube is threadedly connected to the outer spiral sleeve of the drainage tube, thus connecting the other end of the mixed tube to the drainage tube. This facilitates the drainage of accumulated blood and fluid through the drainage tube. At the same time, the detachable connection between the mixed tube and the drainage tube makes it easy for medical staff to separate the Y-shaped connector and the drainage tube, as well as to remove the Y-shaped connector.

[0014] 4) An intelligent drainage tube structure for thyroid surgery as described in 1), wherein: The anti-arch bladed disk includes a nut sleeve fitted on a lead screw. Several blades are evenly distributed on the outer surface of the nut sleeve along its circumferential direction. Each blade has a through hole at its end along its radial direction. The outer surface of the nut sleeve has U-shaped lugs evenly distributed along its circumferential direction for inserting the blade ends. Mounting holes corresponding to the through holes are respectively opened on both sides of the lugs. The lugs are rotatably connected to the ends of the blades through a rotating shaft that passes through the mounting holes and the through holes in sequence. A torsion spring is fitted on the rotating shaft so that each blade remains relatively stationary under the action of the torsion spring.

[0015] Compared with the prior art, when the arch-breaking impeller used in this invention is not in use, the nut sleeve of the arch-breaking impeller is fixed in the fixed position of the drainage tube body and remains stationary. At this time, the accumulated blood and fluids flow along the flow direction of the drainage tube body and generate an impact force towards several blade rods. Since the end of the blade rod is rotatably connected to the nut sleeve, when the blade rod is subjected to the impact force of the accumulated blood and fluids, it rotates around the support lug. At this time, the torsion spring on the rotating shaft passing through the support lug and the end of the blade rod generates an elastic torque, so that the blade rod is in a relatively static state between the impact force of the accumulated blood and fluids and the elastic torque of the torsion spring. When the impact force of the accumulated blood and fluid is greater than the elastic torque of the torsion spring, all the blades are forced to tilt inward toward the direction of blood and fluid flow, forming a "∧" shape. At this time, the tilted surfaces of all the blades can drain the accumulated blood and fluid. When the impact force of the accumulated blood and fluid is less than the elastic torque of the torsion spring, all the blades form a "∨" shape under the elastic torque of the torsion spring. At this time, there is a blockage in the drainage tube. When the drive screw rotates, the nut sleeve moves along the axis of the screw. During the movement of the nut sleeve, the "∨" shaped blades move. The ends of the blades away from the nut sleeve are closer to the opening of the drainage tube. Therefore, the blades can rotate and break the arch of the discharge in the accumulated blood and fluid attached to the drainage tube, and at the same time, they can better clean the opening of the drainage tube, making it easier for the accumulated blood and fluid at the thyroid surgery site to drain better.

[0016] 5) An intelligent drainage tube structure for thyroid surgery as described in 4), wherein: Each blade has a recessed groove on its end face facing the direction of blood and fluid flow for the monitoring unit to be embedded in. The end of the blade away from the nut sleeve has a 2mm gap with the inner wall of the drainage tube.

[0017] The 2mm gap between the end of the blade and the inner wall of the drainage tube in this invention provides space for the blade to swing within the impact force of the flowing blood and fluid and the elastic torque of the torsion spring. When the larger amount of blood and fluid adhering to the inner wall of the drainage tube exceeds 2mm, it will prevent the blade from swinging within this space, thereby blocking the impact force of the flowing blood and fluid or the elastic torque of the torsion spring. At this time, the flow velocity value of the blood and fluid monitored by the monitoring unit on the blade at this position is not the same as the flow velocity value of the blood and fluid on other blades. At this time, the monitoring unit will activate the arch-breaking blade plate in the drainage tube to move along its axial direction to break the larger amount of adhering material.

[0018] 6) An intelligent drainage tube structure for thyroid surgery as described in 5), wherein: The monitoring unit includes a microprocessor and several blood flow rate sensors, each of which is fixed in a recessed groove in each blade. All blood flow rate sensors are electrically connected to the microprocessor. The unit also includes an alarm, which is electrically connected to the microprocessor.

[0019] This invention designs several blood flow velocity sensors to obtain the flow velocity values ​​of accumulated blood and fluid at different radial locations within the drainage tube. These flow velocity values ​​are then sent to a microprocessor. The microprocessor compares the flow velocity value at each location with a preset threshold to determine if there is a blockage within the drainage tube. Alternatively, it compares the flow velocity values ​​at all different locations to determine if a blockage has occurred in the area where the blade is located. The microprocessor then issues a command to activate an alarm, notifying medical personnel of the blockage. At this point, medical personnel can electrically or manually rotate the lead screw. The lead screw moves the nut sleeve along the lead screw axis. During this movement, the nut sleeve also rotates around the lead screw, causing all the blades to rotate, thereby breaking up any blockages within the drainage tube.

[0020] 7) An intelligent drainage tube structure for thyroid surgery as described in 2), wherein: The inner wall of the inner spiral sleeve has two symmetrically arranged fixing sleeves. The fixing sleeves have fixing holes for the lead screw to pass through. The fixing holes are used to support the lead screw. After the lead screw passes through the fixing holes, it can be connected to the output shaft of the servo motor.

[0021] The present invention features two symmetrically arranged fixing sleeves on the inner wall of the inner spiral sleeve, which correspond to the lead screws in the first and second drainage tubes, respectively, and provide support for the lead screws. At the same time, when blockage occurs in the first or second drainage tube, the drainage tube is removed from the mixing tube by using the outer nut sleeve, and then the lead screws of each tube are connected to the output shaft of the servo motor. The servo motor is then started, and it drives the lead screw to rotate, thereby driving the anti-arching blade on the lead screw to perform anti-arching treatment.

[0022] 8) An intelligent drainage tube structure for thyroid surgery as described in 7), wherein: There is a 2-4mm gap between the fixed sleeve and the inner wall of the inner spiral sleeve. A connecting rod is provided between the fixed sleeve and the inner spiral sleeve. One end of the connecting rod is fixed to the inner wall of the inner spiral sleeve, and the other end is fixedly connected to the outer surface of the fixed sleeve.

[0023] The fixed sleeve and the inner spiral sleeve designed in this invention have a gap of 2-4mm, which makes it easy for the two symmetrically arranged fixed sleeves to correspond to the lead screw in their respective drainage tubes. At the same time, the fixed sleeve is connected to the inner wall of the inner spiral sleeve by the connecting rod, which provides support for the fixed sleeve.

[0024] 9) An intelligent drainage tube structure for thyroid surgery as described in 8), wherein: The end face of the connecting rod facing the direction of blood and fluid flow has an integrally formed breaking blade, which is arranged along the axial direction of the connecting rod.

[0025] The present invention has an integrally formed crushing blade on the end face of the connecting rod facing the direction of blood and fluid flow. When the crushing disc is breaking up the arch and discharging larger discharges, in order to prevent blockage in the drainage pipe, the crushing blade further crushes the larger discharges impacting the drainage pipe, thus facilitating the discharge of larger discharges. At the same time, during the normal discharge of blood and fluid, the crushing blade also crushes the discharges it comes into contact with.

[0026] 10) An intelligent drainage tube structure for thyroid surgery as described in 8), wherein: A contact pressure sensor is provided on the end face of the fixing sleeve facing the direction of blood and fluid flow. The contact pressure sensor can contact the end of the nut sleeve and is electrically connected to the microprocessor.

[0027] The contact pressure sensor designed in this invention is used to control the movement of the lead screw. Specifically, when the lead screw is rotating, the nut sleeve moves linearly and rotates along the axis of the lead screw to the position of the fixed sleeve. The end of the nut sleeve touches the contact pressure sensor at the end of the fixed sleeve. The contact pressure sensor transmits information to the microprocessor. The microprocessor obtains the pressure value of the contact pressure sensor and issues a command to activate the alarm, informing medical staff that the anti-arch impeller has reached the top position and that the lead screw rotation needs to be stopped or the lead screw rotated in the opposite direction, thereby controlling the movement of the lead screw.

[0028] 11) A method of using the intelligent drainage tube structure for thyroid surgery as described in 1), comprising the following steps: Step 1: Place the Y-shaped drainage head into the surgical wound through thyroid surgery, and connect the mixed tube of the Y-shaped drainage head to the drainage tube using the threaded connection of the inner and outer spiral sleeves. Step 2: The two drainage tubes in the Y-shaped drainage head drain the accumulated blood and fluid on both sides of the surgical wound. The blood flow velocity sensors in the two drainage tubes collect the blood pressure signals of the flowing blood and fluid, and send them to the microprocessor for processing to obtain the flow velocity values ​​of the blood and fluid in each drainage tube. The flow velocity values ​​are compared with the preset thresholds in the microprocessor. If the flow velocity value is lower than the preset threshold, it is determined that the drainage tube is blocked by blood and fluid, and the microprocessor sends a command to the alarm for early warning. Step 3: Medical staff stop the drainage of accumulated blood and fluid according to the warning, remove the drainage tube through the outer and inner spiral sleeves, and rotate the screw of the arch-breaking impeller by manual or electric means, so that the arch-breaking impeller on the screw moves back and forth along its axis to break the arch.

[0029] Compared with the prior art, the technical principles and effects of the present invention are as follows: This invention uses different states of the arch-breaking blades to achieve different functions. When the arch-breaking blade disc in the arch-breaking blade forms a "∧" shape, the inclined surfaces of all blade rods can drain the accumulated blood and fluid. At the same time, the blood flow velocity sensor on the blade rod can obtain the flow velocity value at different radial positions, thereby monitoring the blood flow velocity of the entire drainage tube. When the entire arch-breaking blade plate in the arch-breaking impeller forms a "V" shape, it can be determined that the impact force generated by the flow velocity of the accumulated blood and fluid is less than the elastic torque on the arch-breaking blade plate. At this time, there may be a blockage at the front section of the drainage tube. In addition, the present invention also utilizes the fact that the flow velocity values ​​obtained on each blade of the arch-breaking impeller are different, which can preliminarily determine that there may be a blockage at that position. Therefore, when the drive screw is rotated, the nut sleeve moves along the axis of the screw. During the movement of the nut sleeve, the blade can rotate and break the arch of the discharge in the accumulated blood and fluid attached to the drainage tube, and at the same time, it can better clean the opening of the drainage tube, which facilitates better drainage of the accumulated blood and fluid at the thyroid surgery site of the patient. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of an intelligent drainage tube structure for thyroid surgery according to the present invention; Figure 2 for Figure 1 Sectional view of AA; Figure 3 for Figure 2 A schematic diagram of the arch-breaking blade in the B-direction; Figure 4 for Figure 1 Sectional view of CC; Figure 5 for Figure 4 A magnified view of a section at point D1. Detailed Implementation

[0031] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: first drainage tube body 1, second drainage tube body 2, drain tube body 3, spiral protrusion 4, spiral groove 5, first drainage port 6, second drainage port 7, blade 8, mixing tube body 9, spiral rod 10, nut sleeve 11, support lug 12, blood flow rate sensor 13, outer spiral sleeve 14, inner spiral sleeve 15, connecting rod 16, fixing sleeve 17, and contact pressure sensor 18.

[0032] Reference will now be made in detail to embodiments disclosed herein, examples of which are described herein and illustrated in the accompanying drawings. While this disclosure will be described in conjunction with embodiments and / or examples, they are not intended to limit the disclosure to those embodiments and / or examples. Rather, this disclosure covers alternatives, modifications, and equivalents.

[0033] In example Figure 1 and Figure 2 In the generally illustrated embodiment, this embodiment provides an intelligent drainage tube structure for thyroid surgery, including a Y-shaped drainage tube head, several arch-breaking blades, and a monitoring unit. The Y-shaped drainage tube head and the several arch-breaking blades are both made of flexible materials. The Y-shaped drainage tube head is placed at the patient's thyroid surgery site and has two drainage tubes extending in opposite directions for draining accumulated blood and fluid from the body. The two drainage tubes can be intertwined to form a twisted shape.

[0034] Several arch-breaking blades are installed in a matching drainage tube. Each tube has a lead screw that extends along the axis of the drainage tube and guides the flow. An arch-breaking blade is fitted on the lead screw and moves back and forth along its axis. The arch-breaking blade can break up and guide the discharge from the blood and fluid in the drainage tube along the axial direction.

[0035] The monitoring unit is set on the end face of the anti-arching disc facing the direction of blood and fluid flow. It monitors the flow rate of blood and fluid in the matching drainage tube in real time and obtains the flow rate value of blood and fluid in different drainage tubes. The flow rate value is sent to the microprocessor. When the flow rate value is lower than the preset threshold in the microprocessor, it is determined that there is blood and fluid blockage in the drainage tube. The anti-arching disc in the drainage tube is then controlled to move back and forth along its axis to perform anti-arching treatment.

[0036] In this embodiment, a monitoring unit is installed inside the drainage tube in the Y-shaped drainage tube head and mounted on the end face of the arch-breaking impeller that moves along the axis inside the drainage tube. The end face of the arch-breaking impeller is directly opposite to the flow direction of the accumulated blood and fluid, so that the monitoring unit can obtain the flow velocity of the accumulated blood and fluid in different drainage tubes along the axial direction in real time, thereby obtaining the flow velocity value in different drainage tubes.

[0037] When the flow rate is lower than the preset threshold in the microprocessor, it is determined that there may be a blockage in the blood and fluid in the drainage tube. At this time, the microprocessor will control the arch-breaking impeller to move back and forth along the axis of the drainage tube to break the arch. During the process, the monitoring unit on the arch-breaking impeller also moves back and forth along the axis of the drainage tube. When the flow rate value sent by the monitoring unit to the microprocessor in real time suddenly exceeds the preset threshold, it is determined that the blockage of blood and fluid in the drainage tube has been resolved; otherwise, it is determined that the blood and fluid in the thyroid surgical site of the patient has been drained. Therefore, this embodiment can determine in a timely manner whether the drainage tube is draining blood and fluid normally.

[0038] The Y-shaped drainage tube head has two drainage tubes extending in opposite directions to drain accumulated blood and fluid from the body, namely the first drainage tube 1 and the second drainage tube 2. The first drainage tube 1 and the second drainage tube 2 are corrugated tube structures. The outer surface of the first drainage tube 1 is provided with a spiral protrusion 4 extending in a spiral shape along its axial direction. The outer surface of the second drainage tube 2 is provided with a spiral groove 5 extending in a spiral shape along its axial direction. The spiral protrusion 4 can be embedded into the spiral groove 5 along its spiral line, so that the first drainage tube 1 and the second drainage tube 2 can be intertwined to form a twisted roll shape.

[0039] Compared to existing thyroid drainage tubes, which are prone to blockage due to their smooth inner surfaces, this embodiment employs a corrugated tube structure. The inner surfaces of the first drainage tube body 1 and the second drainage tube body 2 extend spirally along their axial direction, forming several spiral grooves. These spiral grooves on the inner surfaces of the first drainage tube body 1 and the second drainage tube body 2 can effectively drain accumulated blood and fluid. Furthermore, even if one spiral groove becomes blocked, the remaining spiral grooves can continue to drain the accumulated blood and fluid. Therefore, this embodiment is less prone to blockage during use. This embodiment can simultaneously drain blood and fluid from both thyroid surgical sites. In this embodiment, after the first drainage tube 1 and the second drainage tube 2 have finished draining blood and fluid from the patient's thyroid surgical site, the spiral protrusion 4 on the outer surface of the first drainage tube 1 is inserted into the spiral groove 5 on the outer surface of the second drainage tube 2 by rotation. This causes the first drainage tube 1 and the second drainage tube 2 to intertwine and form a twisted shape. The significant overlap between the two can reduce the diameter of the original drainage tube, making it easier to remove the drainage tube. The first drainage tube 1 and the second drainage tube 2 will not exert pulling force on the skin on both sides of the patient's thyroid surgical site, reducing the patient's pain when removing the drainage tube.

[0040] In addition, in this embodiment, the Y-shaped drainage tube head also includes a mixing tube body 9. One end of the mixing tube body 9 is integrally formed with the first drainage tube body 1 and the second drainage tube body 2 to form a Y-shaped connection end. The other end of the mixing tube body 9 is provided with an inner spiral sleeve 15. The outer surface of the inner spiral sleeve 15 has an outer spiral groove that extends spirally along the axial direction. An outer spiral sleeve 14 is fitted on the outer surface of the inner spiral sleeve 15. The inner surface of the outer spiral sleeve 14 has an inner spiral groove that extends spirally along the axial direction. The inner spiral groove and the outer spiral groove are threadedly connected so that the outer spiral sleeve 14 is fixed on the outer surface of the inner spiral sleeve 15. The port of the outer spiral sleeve 14 away from the inner spiral sleeve 15 is integrally formed with the drainage tube body 3.

[0041] In this embodiment, the first drainage tube body 1 and the second drainage tube body 2 are integrally formed into a Y-shaped connection end by the hybrid tube body 9. Compared with the T-shaped drainage tube in the prior art, the Y-shaped connection end is easier to place in the patient's thyroid surgical site and exerts less pulling force on the endothelial tissue of the patient's thyroid surgical site. The first drainage tube body 1 and the second drainage tube body 2 are used to drain the accumulated blood and fluid in different locations in the patient's thyroid surgical site. After placing the Y-shaped connector at the patient's thyroid surgical site, the inner spiral sleeve 15 of the other opening of the mixed tube 9 is threadedly connected to the outer spiral sleeve of the drainage tube 3, so that the other opening of the mixed tube 9 is connected to the drainage tube 3. This facilitates the drainage of accumulated blood and fluid through the drainage tube 3. At the same time, the detachable connection between the mixed tube 9 and the drainage tube 3 makes it easy for medical staff to separate the Y-shaped connector and the drainage tube 3, and to remove the Y-shaped connector.

[0042] See Figure 3 As shown, the anti-arch bladed disk in this embodiment includes a nut sleeve 11 sleeved on a lead screw. Several blades 8 are evenly distributed on the outer surface of the nut sleeve 11 along its circumferential direction. Each blade 8 has a through hole at its end along its radial direction. The outer surface of the nut sleeve 11 has U-shaped lugs 12 evenly distributed along its circumferential direction for the blade ends 8 to be inserted into. Mounting holes corresponding to the through holes are respectively opened on both sides of the lugs 12. The lugs 12 are rotatably connected to the ends of the blades 8 through a rotating shaft that passes through the mounting holes and the through holes in sequence. A torsion spring is sleeved on the rotating shaft so that each blade 8 remains relatively stationary under the action of the torsion spring.

[0043] Compared with the prior art, in this embodiment, when the arch-breaking impeller is not in use, the nut sleeve 11 of the arch-breaking impeller is fixed in the fixed position of the drainage tube body and remains stationary. At this time, the accumulated blood and fluid generate an impact force towards several blade rods 8 along the flow direction of the drainage tube body. Since the end of the blade rod 8 is rotatably connected to the nut sleeve 11, when the blade rod 8 is subjected to the impact force of the accumulated blood and fluid, it rotates around the support lug 12. At this time, the torsion spring on the rotating shaft passing through the support lug 12 and the end of the blade rod 8 generates an elastic torque, so that the blade rod 8 is in a relatively static state between the impact force of the accumulated blood and fluid and the elastic torque of the torsion spring. When the impact force of the accumulated blood and fluid is greater than the elastic torque of the torsion spring, all the blades 8 are forced to tilt inward toward the direction of blood and fluid flow, forming a "∧" shape. At this time, the tilted surfaces of all the blades 8 can drain the accumulated blood and fluid. When the impact force of the accumulated blood and fluid is less than the elastic torque of the torsion spring, all the blades 8 form a "∨" shape under the elastic torque of the torsion spring. At this time, there is a blockage in the drainage tube. When the drive screw rotates, the nut sleeve 11 moves along the axis of the screw. During the movement of the nut sleeve 11, it drives the "∨" shaped blades 8 to move. The end of the blades 8 away from the nut sleeve 11 is closer to the opening of the drainage tube. Therefore, the blades 8 can rotate and break the arch of the discharge in the accumulated blood and fluid attached to the drainage tube, and at the same time, they can better clean the opening of the drainage tube, making it easier for the accumulated blood and fluid at the thyroid surgery site to drain better.

[0044] Meanwhile, each blade 8 has a recessed groove on its end face facing the direction of blood and fluid flow for the monitoring unit to be embedded, and there is a 2mm gap between the end of the blade 8 away from the nut sleeve 11 and the inner wall of the drainage tube.

[0045] The 2mm gap between the end of the blade 8 and the inner wall of the drainage tube in this embodiment allows the blade 8 to swing within the space of the flow impact force of the accumulated blood and fluid and the elastic torque of the torsion spring. When the larger amount of accumulated blood and fluid adhering to the inner wall of the drainage tube is greater than 2mm, it will prevent the blade 8 from swinging within this space, thereby blocking the flow impact force of the accumulated blood and fluid or the elastic torque of the torsion spring. At this time, the flow velocity value of the accumulated blood and fluid monitored by the monitoring unit on the blade 8 at this position is not the same as the flow velocity value of the accumulated blood and fluid on other blades 8. At this time, the monitoring unit will activate the arch-breaking blade plate in the drainage tube to move along its axial direction to break the larger amount of adhering material.

[0046] The monitoring unit in this embodiment includes a microprocessor and several blood flow rate sensors 13. Each blood flow rate sensor 13 is fixed in a recessed groove of each blade 8. All blood flow rate sensors 13 are electrically connected to the microprocessor. The unit also includes an alarm, which is electrically connected to the microprocessor.

[0047] In this embodiment, several blood flow velocity sensors 13 are designed to obtain the flow velocity values ​​of accumulated blood and fluid at different radial locations within the drainage tube. These flow velocity values ​​are then sent to a microprocessor. The microprocessor compares the flow velocity value at each location with a preset threshold to determine if there is any blockage within the drainage tube. Alternatively, it compares the flow velocity values ​​at all different locations to determine if a blockage has occurred in the area at the location of the blade 8. The microprocessor then issues a command to activate an alarm, notifying medical personnel of the blockage. At this time, medical personnel can rotate the lead screw using electricity or manual force. The lead screw drives the nut sleeve 11 to move along the lead screw axis. During this movement, the nut sleeve 11 also rotates around the lead screw, causing all the blades 8 to rotate, thereby breaking up any blockages within the drainage tube.

[0048] See Figure 4 and Figure 5 As shown, in this embodiment, the inner wall of the port of the inner spiral sleeve is provided with two symmetrically arranged fixing sleeves 17. The fixing sleeve 17 has a fixing hole for the lead screw to pass through. The fixing hole is used to support the lead screw. After the lead screw passes through the fixing hole, it can be connected to the output shaft of the servo motor.

[0049] In this embodiment, two symmetrically arranged fixing sleeves 17 are provided on the inner wall of the inner spiral sleeve, which correspond to the lead screws in the first drainage tube 1 and the second drainage tube 2, respectively, and provide support for the lead screws. At the same time, when the first drainage tube 1 or the second drainage tube 2 is blocked, the drain tube 3 is removed from the mixing tube 9 by the outer nut sleeve 11, and then the lead screws of each tube are connected to the output shaft of the servo motor. The servo motor is started, and the servo motor drives the lead screw to rotate, thereby driving the anti-arching blade disk on the lead screw to perform anti-arching treatment.

[0050] More specifically, in this embodiment, there is a 2-4mm gap between the fixing sleeve 17 and the inner wall of the inner spiral sleeve, and a connecting rod 16 is provided between the fixing sleeve 17 and the inner spiral sleeve. One end of the connecting rod 16 is fixed to the inner wall of the inner spiral sleeve, and the other end is fixedly connected to the outer surface of the fixing sleeve 17.

[0051] In this embodiment, the fixed sleeve 17 and the inner spiral sleeve are spaced 2-4mm apart, which makes it easy for the two symmetrically arranged fixed sleeves 17 to correspond to the lead screws in their respective drainage tubes. At the same time, the fixed sleeve 17 is connected to the inner wall of the inner spiral sleeve by the connecting rod 16, which provides support for the fixed sleeve 17.

[0052] The end face of the connecting rod 16 facing the direction of blood and fluid flow has an integrally formed crushing blade, which is set along the axial direction of the connecting rod 16. When the arch-breaking impeller is breaking up and discharging larger discharges, in order to prevent blockage in the drainage pipe 3, the crushing blade further breaks up the larger discharges impacting the drainage pipe, thus facilitating the discharge of larger discharges; at the same time, during the normal discharge of blood and fluid, the crushing blade also breaks up the discharges it comes into contact with.

[0053] In addition, in this embodiment, a contact pressure sensor 18 is provided on the end face of the fixing sleeve 17 facing the direction of blood and fluid flow. The contact pressure sensor 18 can contact the end of the nut sleeve 11 and is electrically connected to the microprocessor.

[0054] The contact pressure sensor 18 designed in this embodiment is used to control the movement of the lead screw. Specifically, when the lead screw is rotating, the nut sleeve 11 moves linearly and rotates along the axis of the lead screw to the position of the fixed sleeve 17. The end of the nut sleeve 11 touches the contact pressure sensor 18 at the end of the fixed sleeve 17. The contact pressure sensor 18 transmits information to the microprocessor. The microprocessor obtains the pressure value of the contact pressure sensor 18 and issues a command to activate the alarm, informing medical staff that the arch-breaking impeller has reached the top position and that the lead screw rotation needs to be stopped or the lead screw rotated in the opposite direction, thereby controlling the movement of the lead screw.

[0055] A method of using an intelligent drainage tube structure for thyroid surgery includes the following steps: Step 1: Place the Y-shaped drainage head into the surgical wound through thyroid surgery, and connect the mixed tube 9 of the Y-shaped drainage head to the drainage tube 3 using the threaded connection of the inner and outer spiral sleeves. Step 2: The two drainage tubes in the Y-shaped drainage head drain the blood and fluid accumulation on both sides of the surgical wound. The blood flow velocity sensors 13 in the two drainage tubes collect the blood pressure signals of the flowing blood and fluid accumulation and send them to the microprocessor for processing to obtain the flow velocity values ​​of the blood and fluid accumulation in each of the two drainage tubes. The flow velocity values ​​are compared with the preset thresholds in the microprocessor. If the flow velocity value is lower than the preset thresholds in the microprocessor, it is determined that the drainage tube is blocked by blood and fluid accumulation, and the microprocessor sends a command to the alarm for early warning. Step 3: Medical staff stop the drainage of accumulated blood and fluid according to the warning, remove the drainage tube 3 through the outer and inner spiral sleeves, and rotate the screw of the arch-breaking blade disc manually or electrically to make the arch-breaking blade disc on the screw move back and forth along its axis to break the arch.

[0056] This invention uses different states of the arch-breaking blades to achieve different functions. When the arch-breaking blade disc in the arch-breaking blade forms a "∧" shape, the inclined surfaces of all blade rods 8 can drain the accumulated blood and fluid. At the same time, the blood flow velocity sensor 13 on the blade rod 8 can obtain the flow velocity values ​​at different radial positions, thereby monitoring the blood flow velocity of the entire drainage tube. When the entire arch-breaking blade plate in the arch-breaking impeller forms a "V" shape, it can be determined that the impact force generated by the flow velocity of the accumulated blood and fluid is less than the elastic torque on the arch-breaking blade plate. At this time, there may be a blockage at the front section of the drainage tube. In addition, when the flow velocity values ​​obtained on each blade 8 of the arch-breaking impeller are different, it can be preliminarily determined that there may be a blockage at that position. Therefore, when the screw is driven to rotate, the nut sleeve 11 moves along the screw axis. During the movement of the nut sleeve 11, the blade 8 can rotate and break the arch of the discharge in the accumulated blood and fluid attached to the drainage tube, and at the same time, it can better clean the opening of the drainage tube, which facilitates better drainage of the accumulated blood and fluid at the thyroid surgery site of the patient.

[0057] The above are merely embodiments of the present invention. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An intelligent drainage tube structure for thyroid surgery, characterized in that, include: The Y-shaped drainage tube head is placed at the surgical site of the patient's thyroid. It has two drainage tubes that extend in opposite directions and are used to drain accumulated blood and fluid from the body. The two drainage tubes can be twisted together to form a twisted shape. Several arch-breaking blades are installed in matching drainage tubes. Each tube has a lead screw that extends along the axis of the drainage tube and guides the flow. An arch-breaking blade disc that reciprocates along the axis of the lead screw is fitted on the lead screw. The arch-breaking blade disc can break up and guide the discharge from the blood and fluid in the drainage tube along the axial direction. The monitoring unit is set on the end face of the anti-arching disc facing the direction of blood and fluid flow. It monitors the flow rate of blood and fluid in the matching drainage tube in real time and obtains the flow rate value of blood and fluid in different drainage tubes. The flow rate value is sent to the microprocessor. When the flow rate value is lower than the preset threshold in the microprocessor, it is determined that there is blood and fluid blockage in the drainage tube. The anti-arching disc in the drainage tube is controlled to move back and forth along its axis to perform anti-arching treatment. The Y-shaped drainage tube head has two drainage tubes extending in opposite directions for draining accumulated blood and fluid from the body, namely the first drainage tube and the second drainage tube. The first drainage tube and the second drainage tube are corrugated tube structures. The outer surface of the first drainage tube is provided with a spiral protrusion extending in a spiral shape along its axial direction, and the outer surface of the second drainage tube is provided with a spiral groove extending in a spiral shape along its axial direction. The spiral protrusion can be embedded into the spiral groove along its spiral line, so that the first drainage tube and the second drainage tube can be intertwined to form a twisted roll shape. The anti-arch bladed disk includes a nut sleeve fitted on a lead screw. Several blades are evenly distributed on the outer surface of the nut sleeve along its circumferential direction. Each blade has a through hole at its end along its radial direction. The outer surface of the nut sleeve has U-shaped lugs evenly distributed along its circumferential direction for inserting the blade ends. Mounting holes corresponding to the through holes are respectively opened on both sides of the lugs. The lugs are rotatably connected to the ends of the blades through a rotating shaft that passes through the mounting holes and the through holes in sequence. A torsion spring is fitted on the rotating shaft so that each blade remains relatively stationary under the action of the torsion spring.

2. The intelligent drainage tube structure for thyroid surgery according to claim 1, characterized in that: The Y-shaped drainage tube head also includes a mixing tube body. One end of the mixing tube body is integrally formed with the first drainage tube body and the second drainage tube body to form a Y-shaped connection end. The other end of the mixing tube body is provided with an inner spiral sleeve. The outer surface of the inner spiral sleeve has an outer spiral groove that extends spirally along the axial direction. An outer spiral sleeve is fitted onto the outer surface of the inner spiral sleeve. The inner surface of the outer spiral sleeve has an inner spiral groove that extends spirally along the axial direction. The inner spiral groove and the outer spiral groove are threaded together so that the outer spiral sleeve is fixed on the outer surface of the inner spiral sleeve. The port of the outer spiral sleeve away from the inner spiral sleeve is integrally formed with the drainage tube body.

3. The intelligent drainage tube structure for thyroid surgery according to claim 1, characterized in that: Each blade has a recessed groove on its end face facing the direction of blood and fluid flow for the monitoring unit to be embedded in. The end of the blade away from the nut sleeve has a 2mm gap with the inner wall of the drainage tube.

4. The intelligent drainage tube structure for thyroid surgery according to claim 3, characterized in that: The monitoring unit includes a microprocessor and several blood flow rate sensors, each of which is fixed in a recessed groove in each blade. All blood flow rate sensors are electrically connected to the microprocessor. The unit also includes an alarm, which is electrically connected to the microprocessor.

5. The intelligent drainage tube structure for thyroid surgery according to claim 2, characterized in that: The inner wall of the inner spiral sleeve has two symmetrically arranged fixing sleeves. The fixing sleeves have fixing holes for the lead screw to pass through. The fixing holes are used to support the lead screw. After the lead screw passes through the fixing holes, it can be connected to the output shaft of the servo motor.

6. The intelligent drainage tube structure for thyroid surgery according to claim 5, characterized in that: There is a 2-4mm gap between the fixed sleeve and the inner wall of the inner spiral sleeve. A connecting rod is provided between the fixed sleeve and the inner spiral sleeve. One end of the connecting rod is fixed to the inner wall of the inner spiral sleeve, and the other end is fixedly connected to the outer surface of the fixed sleeve.

7. The intelligent drainage tube structure for thyroid surgery according to claim 6, characterized in that: A contact pressure sensor is provided on the end face of the fixing sleeve facing the direction of blood and fluid flow. The contact pressure sensor can contact the end of the nut sleeve and is electrically connected to the microprocessor.

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