A post-mastectomy drainage device

Abstract

The application discloses the technical field of postoperative drainage devices and relates to a breast cancer postoperative drainage device which comprises a drainage tube and a negative pressure storage mechanism, a functional carrier is arranged on a communication path of the drainage tube and the collection mechanism, a piston groove is formed in the functional carrier, three-way pipelines are symmetrically communicated on the two sides of the piston groove, two inlets of the three-way pipelines are respectively communicated with the two sides of the piston groove, first pipelines are also symmetrically communicated with the two sides of the piston groove, one end of the first pipelines is respectively communicated with the two sides of the piston groove, the other end of the first pipelines is communicated with the drainage tube, a piston block is slidably arranged in the piston groove, a first transfer channel and a second transfer channel are formed in the piston block, the first transfer channel and the second transfer channel are staggeredly communicated with the first pipelines and the three-way pipelines respectively when the piston block reciprocally moves, and a smashing mechanism is further arranged in the piston groove.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of postoperative drainage devices, and particularly relates to a breast cancer postoperative drainage device. BACKGROUND

[0002] Breast cancer surgery (such as radical mastectomy or breast-conserving surgery) can form a subcutaneous potential space, which is easy to accumulate blood, lymphatic fluid and exudate. If not drained in time, the effusion may cause complications such as infection, skin flap necrosis, hematoma, prolong healing time and increase the pain of patients. Studies have shown that factors such as lymphatic vessel rupture, incomplete hemostasis and improper postoperative activity can increase the risk of effusion.

[0003] There are some common problems in the design of existing drainage devices, especially when the patient's body position changes, which is easy to cause backflow or blockage, which not only affects the drainage effect, but also may cause complications such as infection, and increases the pain and medical costs of patients. For example, when the patient turns over or moves, the drainage tube may cause backflow of the drainage liquid due to gravity, or be blocked due to twisting and compression of the pipeline, affecting the continuity of negative pressure and reducing the drainage efficiency. The patent with publication number CN117065117B discloses a breast cancer postoperative drainage device, which prevents liquid backflow by setting a flow guide piece. When the liquid backflows, the liquid pressure drives the overflow plate to approach the drainage column until the drainage column blocks the overflow hole, thereby preventing liquid backflow from causing wound infection.

[0004] Although the above scheme can solve the problem of backflow of drainage liquid to some extent, it has limited ability to deal with the smoothness of drainage liquid, for example, impurities such as fat particles and necrotic tissue fragments are easy to accumulate in the area between the overflow plate and the drainage column, causing local blockage, affecting the smoothness of drainage, and thus reducing the overall drainage efficiency.

[0005] In view of the defects of the prior art, there is an urgent need for a breast cancer postoperative drainage device that can effectively solve the problems of easy backflow and easy blockage of the existing drainage device when the body position changes. SUMMARY

[0006] In order to solve the above problems, the purpose of the present application is to provide a breast cancer postoperative drainage device which can ensure the smoothness of drainage and improve the drainage efficiency.

[0007] In order to achieve the above purpose, the technical scheme of the present application is as follows:

[0008] A breast cancer postoperative drainage device, comprising a drainage tube and a negative pressure storage mechanism for attracting and storing drainage liquid in communication with the drainage tube; a functional carrier is arranged on the communication path between the drainage tube and the collection mechanism; a piston groove is formed in the functional carrier;

[0009] The piston groove is symmetrically connected to two T-shaped pipes. The two inlets of the T-shaped pipes are connected to the two sides of the piston groove respectively, and the outlets of the T-shaped pipes are connected to the negative pressure storage mechanism.

[0010] The piston groove is symmetrically connected to the two sides of the first pipe. One end of the first pipe is connected to both sides of the piston groove, and the other end of the first pipe is connected to the drain pipe.

[0011] A piston block is slidably fitted inside the piston groove. The piston block has a first transfer channel and a second transfer channel, which are arranged in a centrally symmetrical manner. When the piston block moves back and forth, the first transfer channel and the second transfer channel are respectively connected to the first pipe and the tee pipe in an alternating manner.

[0012] A crushing mechanism is also provided inside the piston groove. The crushing mechanism is used to stir and crush the drainage liquid in the piston groove based on the movement of the piston block.

[0013] The above approach has the following beneficial effects:

[0014] 1. Principle: The negative pressure storage mechanism extracts the accumulated fluid from the patient's body through the drainage tube. The resulting negative pressure is sequentially transmitted to the three-way pipe and the piston groove, and then transmitted to the first pipe through the first transfer channel or the second transfer channel, and finally transmitted to the drainage tube through the first pipe.

[0015] The piston block moves within the piston groove due to negative pressure. As the piston block moves to one side, negative pressure is generated on the other side of the piston block (where the volume between the piston block and the piston groove gradually increases). This negative pressure acts on the first drainage tube through the first or second transfer channel, drawing the patient's fluid into the piston groove. Finally, the fluid in the piston groove is removed through a three-way tube.

[0016] The reciprocating movement of the piston block ensures that the drainage fluid (i.e., the accumulated fluid, hereinafter the same) can only flow in a predetermined direction. During the movement of the piston block, the crushing mechanism is driven to stir and crush the drainage fluid in the piston groove, preventing impurities such as fat particles and necrotic tissue fragments from accumulating and clogging the pipe.

[0017] As the piston moves back and forth, the drainage fluid is continuously drawn from the patient's body and transported through a three-way tube to a negative pressure storage device for storage.

[0018] This design utilizes the reciprocating motion of the piston block and the synergistic effect of the three-way pipe to create a dynamic pressure difference. When the piston block moves to one side, the volume on that side increases, generating negative pressure that directly acts on the drainage pipe to draw in the accumulated liquid; the volume on the other side compresses, and the negative pressure pushes the accumulated liquid into the storage mechanism through the three-way pipe. This process forms a unidirectional pressure gradient, completely blocking the backflow path.

[0019] Compared to existing technologies that rely on liquid pressure to passively close the connection channel, this solution achieves bidirectional backflow prevention through active pressure regulation, avoiding instantaneous backflow caused by sudden changes in patient position (such as turning over), and is especially suitable for patients who are frequently active in the early postoperative period.

[0020] 2. This solution uses a piston block linked to a pulverizing mechanism. The reciprocating motion of the piston block directly pulverizes the fat particles and fibrin clots in the accumulated liquid (e.g., driven blades or an auger structure), making the impurity particle size smaller than the pipe's inner diameter, significantly reducing the risk of blockage. Simultaneously, the vortex effect generated by the pulverizing mechanism's stirring prevents viscous substances from adhering to the piston groove's inner wall, providing drainage velocity.

[0021] 3. In this design, the piston block generates alternating pulse-like negative pressure with each reciprocating motion, which is more in line with the dynamic law of tissue fluid exudation compared with the traditional constant negative pressure.

[0022] Furthermore, the negative pressure storage mechanism includes a collection box; the collection box is provided with a storage chamber, which is connected to the outlet of a three-way pipe, and a pump assembly is provided on the path connecting the storage chamber and the three-way pipe.

[0023] Beneficial effects: By connecting the storage chamber within the collection box to the outlet of the three-way tubing, fluid drained from the patient can be collected efficiently. The pump assembly allows for precise control of the negative pressure and drainage rate, ensuring that the drainage fluid enters the storage chamber quickly and smoothly.

[0024] Furthermore, the crushing mechanism includes a rotating shaft and at least two sets of crushing blades; the rotating shaft passes through the center of the piston block, the rotating shaft is slidably engaged with the piston block, the two ends of the rotating shaft are rotatably connected to the inner wall of the piston groove, and the crushing blades are fixedly connected to the two ends of the rotating shaft; a spiral groove is provided on the side wall of the rotating shaft, and a protrusion is slidably engaged in the spiral groove, and the protrusion is fixedly connected to the piston block.

[0025] Beneficial effects: When the piston block moves linearly back and forth within the piston groove, the protrusion moves axially back and forth along the trajectory of the spiral groove. Due to the guiding effect of the spiral groove, the protrusion drives the rotating shaft to rotate during its axial reciprocating movement. This is because the shape and orientation of the spiral groove determine that the protrusion generates a rotational torque on the rotating shaft during its movement, thus causing the rotating shaft to rotate. This rotational motion drives the pulverizing blades fixedly connected to both ends of the rotating shaft to stir and pulverize the drainage fluid within the piston groove. This effectively breaks down impurities such as fat particles and necrotic tissue fragments, preventing their accumulation and blockage of the pipes, thereby ensuring smooth drainage and improving overall drainage efficiency.

[0026] Furthermore, a detection channel is connected between the first pipe and the drainage pipe. A first acquisition module is installed in the detection channel to acquire the drainage fluid parameters in the detection channel in real time. It also includes a control module to preliminarily determine the drainage status based on the drainage fluid parameters and control the operation of the pump assembly.

[0027] Beneficial effects: Based on the drainage fluid parameters acquired by the first acquisition module, the control module can preliminarily determine the drainage status and control the operation of the pump assembly according to the actual situation. For example, when the drainage fluid volume is excessive or its characteristics are abnormal, the control module can automatically adjust the negative pressure intensity or drainage speed of the pump assembly, realizing intelligent drainage management and improving the safety and effectiveness of treatment.

[0028] Furthermore, it also includes a second acquisition module, a preprocessing module, a feature extraction module, an early warning model construction module, a model training and optimization module, and an early warning module;

[0029] The second acquisition module is used to collect historical drainage fluid parameters;

[0030] The preprocessing module is used to preprocess historical drainage fluid parameters;

[0031] The feature extraction module is used to extract features from historical drainage fluid parameters and to label the historical drainage fluid parameters. The labeled historical drainage fluid parameters are then divided into training set, validation set and test set.

[0032] The early warning model building module is used to build a postoperative drainage early warning model using machine learning algorithms;

[0033] The model training and optimization module is used to train the constructed postoperative drainage early warning model using the labeled training set, and to optimize the postoperative drainage early warning model using the labeled validation set and test set.

[0034] The control module is also used to input the drainage fluid parameters collected by the first acquisition module into the trained postoperative drainage early warning model to obtain the recognition results, and to judge the degree of abnormality of the drainage fluid based on the recognition results;

[0035] The early warning module is used to issue warnings based on the severity of the anomaly.

[0036] Beneficial effects: By collecting and analyzing drainage data in real time, abnormal situations can be detected and early warnings can be issued in a timely manner, effectively avoiding the lag of traditional monitoring methods and improving the timeliness and accuracy of postoperative care.

[0037] Furthermore, it also includes a third acquisition module, a fourth acquisition module, and an ultrasonic auxiliary module; the third acquisition module is used to acquire the first pressure information of the drainage fluid between the piston groove and the drainage tube; the fourth acquisition module is used to acquire the second pressure information of the drainage fluid between the piston groove and the storage cavity; the ultrasonic auxiliary module is used to perform ultrasonic vibration on the drainage fluid in the piston groove.

[0038] The control module is also used to determine the crushing effect of the crushing mechanism based on the difference between the first pressure information and the second pressure information, and to control the operation of the ultrasonic auxiliary module.

[0039] Beneficial effects: Based on the difference between these two values, the control module can accurately determine the crushing effect of the crushing mechanism. If the pressure difference is abnormal, it may mean that the crushing mechanism is not working sufficiently, and there is a risk of impurity accumulation.

[0040] The ultrasonic auxiliary module is used to ultrasonically vibrate the drainage fluid in the piston groove. The high-frequency vibration of ultrasound can further break down impurities in the drainage fluid, especially for some tiny particles or viscous substances that are difficult to process by mechanical pulverization. Ultrasonic waves can provide additional breaking energy, thereby improving the thoroughness and efficiency of pulverization.

[0041] After judging the pulverization effect based on the pressure difference, the control module can intelligently control the operation of the ultrasonic auxiliary module. When the pulverization effect is good, the ultrasonic auxiliary module can maintain a low-power or intermittent operation mode to save energy and extend the service life of the equipment; while when the pulverization effect is poor, the control module can automatically increase the power or running time of the ultrasonic auxiliary module to ensure that impurities in the drainage fluid are effectively treated. By monitoring the pressure difference in real time and combining it with ultrasonic-assisted pulverization, the device can dynamically adjust the pulverization and drainage strategies to ensure that the drainage fluid maintains a low viscosity and particle size in the piston groove, thereby improving drainage efficiency, reducing clogging problems caused by impurity accumulation, and ensuring the smooth progress of the entire drainage process.

[0042] Furthermore, the control module judges the crushing effect of the crushing mechanism through the following control logic: if the difference between the first pressure information and the second pressure information is lower than the preset range, the crushing effect is judged to be poor; if the difference between the first pressure information and the second pressure information is higher than the preset range, the crushing effect is judged to be poor; if the difference between the first pressure information and the second pressure information is within the preset range, the crushing effect is judged to be excellent.

[0043] Beneficial effects: By setting a clear preset range, misjudgments and erroneous operations caused by minor fluctuations in pressure difference are avoided. Adjustment measures are only triggered when the pressure difference significantly deviates from the normal range, thus improving the system's stability and reliability.

[0044] Furthermore, a liquid level sensor is installed inside the storage chamber; the control module is also used to control the operation of the pump assembly based on the information from the liquid level sensor.

[0045] Beneficial effects: The liquid level sensor can monitor the liquid level in the storage chamber in real time and transmit the data to the control module. The control module automatically controls the operation of the pump assembly based on the liquid level information, ensuring that the drainage volume in the storage chamber is always maintained within a safe and suitable range. When the liquid level is too high, the control module controls the pump assembly to slow down or stop, avoiding excessive suction and preventing the drainage fluid in the storage chamber from overflowing.

[0046] Furthermore, it also includes a clinical information acquisition module, a drainage plan construction module, and an output module; the clinical information acquisition module is used to acquire the patient's clinical data; the drainage plan construction module is used to input the clinical data into a pre-trained drainage plan construction model to obtain a personalized drainage plan; the output module is used to send the personalized drainage plan to the control module; the control module is also used to control the operation of the pump component based on the personalized drainage plan.

[0047] Beneficial Effects: The clinical information acquisition module obtains detailed clinical data from patients, including medical history, surgical information, pathology reports, and postoperative recovery status. This data, combined with drainage fluid parameters, provides a comprehensive patient information foundation for the drainage protocol construction module. Utilizing a pre-trained model, the drainage protocol construction module develops highly personalized drainage plans based on this comprehensive data, precisely matching the specific needs of each patient, thereby optimizing treatment outcomes and accelerating postoperative recovery.

[0048] The output module sends the personalized drainage plan to the control module, which then precisely adjusts the operating parameters of the pump components, such as negative pressure intensity, drainage speed, and time interval. This intelligent and precise control ensures that the drainage process adapts to the patient's real-time physiological state and postoperative recovery progress, avoiding over- or under-drainage, improving drainage efficiency, and reducing the risk of complications.

[0049] Furthermore, it also includes a monitoring frequency adjustment module, which is used to determine the patient's recovery stage based on the patient's clinical data and drainage fluid parameters, and adjust the acquisition frequency of the first acquisition module.

[0050] Beneficial effects: By dynamically adjusting the monitoring frequency, the monitoring frequency adjustment module concentrates resources on full parameter monitoring and high-frequency sampling during highly sensitive periods to ensure that potential problems can be detected in a timely manner; during stable periods, it reduces unnecessary monitoring frequency through event-triggered mode, thereby reducing system energy consumption and computing resource usage and improving overall operating efficiency. Attached Figure Description

[0051] Figure 1This is a three-dimensional structural schematic diagram of a post-mastoma drainage device according to the present invention.

[0052] Figure 2 for Figure 1 A three-dimensional structural diagram of the functional carrier.

[0053] Figure 3 for Figure 2 Top view.

[0054] Figure 4 for Figure 3 Cross-sectional view along the AA direction.

[0055] Figure 5 for Figure 4 A magnified view of a portion of point M in the middle.

[0056] Figure 6 for Figure 1 A top view of the collection box.

[0057] Figure 7 for Figure 6 Cross-sectional view along the BB direction.

[0058] Figure 8 for Figure 5 A schematic diagram of the structure of the rotating shaft.

[0059] The reference numerals in the accompanying drawings include: 1. Drainage tube; 2. Functional carrier; 3. Collection box; 101. First connector; 102. Second connector; 201. Detection channel; 202. Piston groove; 203. First pipe; 204. Piston block; 205. T-shaped pipe; 206. First transfer channel; 207. Second transfer channel; 208. Rotating shaft; 209. Crushing blade; 210. Protrusion; 211. Image sensor; 212. Light-emitting element; 213. Temperature sensor; 214. First pressure sensor; 215. Second pressure sensor; 216. Spiral groove; 301. Storage chamber; 302. Pump assembly; 303. Liquid level sensor. Detailed Implementation

[0060] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0061] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0062] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0063] The following detailed description illustrates the specific implementation method:

[0064] Example 1 is basically as shown in the appendix. Figures 1-8 As shown: A postoperative drainage device for breast cancer includes a drainage tube 1 and a negative pressure storage mechanism connected to the drainage tube 1 for aspirating and storing drainage fluid.

[0065] A functional carrier 2 is provided on the communication path between the drainage tube 1 and the collection mechanism. Preferably, it is combined with an attached... Figure 4 As shown, in this embodiment, the drainage tube 1 is divided into two sections by the functional carrier 2, that is, there are two drainage tubes 1 in this embodiment. The two ends of the functional carrier 2 are detachably connected to the drainage tube 1 respectively (in some other embodiments, the functional carrier 2 and the drainage tube 1 are integrated, and the drainage tube 1 can adopt a telescopic or retractable structure). The top and bottom of the functional carrier 2 are respectively connected to the first connector 101 and the second connector 102. The drainage tube 1 is connected to the functional carrier 2 through the first connector 101 and the second connector 102 respectively.

[0066] The functional carrier 2 has a piston groove 202 inside; combined with the attached Figure 4 and attached Figure 5 As shown, the piston groove 202 is symmetrically connected to two sides by a three-way pipe 205. Preferably, in this embodiment, the upper half of the three-way pipe 205 is "F"-shaped, and the two openings of the upper half of the three-way pipe 205 are inlets. Both inlets of the three-way pipe 205 are connected to both sides of the piston groove 202, and the outlets of the three-way pipe 205 are connected to the drainage pipe 1. Specifically, in conjunction with the attached... Figure 7As shown, the negative pressure storage mechanism includes a collection box 3; a storage chamber 301 is provided inside the collection box 3. In this embodiment, the storage chamber 301 and the outlet of the three-way pipe 205 are connected in sequence to the drainage pipe 1 and the second connector 102. A pump assembly 302 is installed on the communication path between the storage chamber 301 and the drainage pipe 1. In this embodiment, the pump assembly 302 is a diaphragm pump.

[0067] The piston groove 202 is also symmetrically connected to the two sides by a first pipe 203. In this embodiment, the first pipe 203 and the tee pipe 205 are independent of each other and do not interfere with each other. The outlet of the first pipe 203 ( Figure 5 The bottom of the first pipe 203 (the outlet end) is located between the two inlets of the tee pipe 205. The outlets of the first pipe 203 are connected to both sides of the piston groove 202. The inlets of the first pipe 203 (i.e., Figure 4 The top of the first pipe 203 is connected to the drainage pipe 1.

[0068] A piston block 204 is slidably fitted within the piston groove 202. In this embodiment, the piston block 204 is rectangular in shape, and a first transfer channel 206 and a second transfer channel 207 are provided within the piston block 204. The first transfer channel 206 and the second transfer channel 207 are arranged symmetrically at the center. Preferably, in this embodiment, the first transfer channel 206 is in the shape of a "┛" and the second transfer channel 207 is in the shape of a "┏". When the piston block 204 reciprocates, the first transfer channel 206 and the second transfer channel 207 are respectively connected to the first pipe 203 and the tee pipe 205 in an alternating manner. Specifically, in conjunction with the attached... Figure 5 As shown, when the piston block 204 moves upward, the bottom area of ​​the first channel-second transfer channel 207-piston groove 202 is in a connected state, and the top area of ​​the piston groove 202 is in a connected state with the inlet of the uppermost tee pipe 205.

[0069] When the piston block 204 moves downward, the top area of ​​the first channel-first transfer channel 206-piston groove 202 is in a connected state, and the bottom area of ​​the piston groove 202 is in a connected state with the inlet of the lowest tee pipe 205.

[0070] A pulverizing mechanism is also provided within the piston groove 202. This mechanism is used to agitate and pulverize the draining liquid within the piston groove 202 based on the movement of the piston block 204. Specifically, refer to the attached... Figure 5As shown, the crushing mechanism includes a rotating shaft 208 and at least two sets of crushing blades 209. The rotating shaft 208 passes through the center of the piston block 204 and is slidably engaged with the piston block 204. The two ends of the rotating shaft 208 are rotatably connected to the top and bottom of the piston groove 202, respectively. In this embodiment, each set of crushing blades 209 includes two blades, and the crushing blades 209 are radially welded and fixed to the two ends of the rotating shaft 208, respectively. A spiral groove 216 is provided on the side wall of the rotating shaft 208, and a protrusion 210 is slidably engaged in the spiral groove 216. The protrusion 210 is integrally formed with the piston block 204. Specifically, after the rotating shaft 208 passes through the piston block 204, it will leave a through groove in the center of the piston block 204, and the protrusion 210 is located in the through groove.

[0071] The specific implementation process is as follows: When drainage is required, the pump assembly 302 (a diaphragm pump in this embodiment) in the negative pressure storage mechanism is activated to generate negative pressure. The negative pressure is transmitted sequentially through the storage chamber 301, the drainage pipe 1, and the second connector 102 to the three-way pipe 205, and then to the piston groove 202.

[0072] Negative pressure is applied to piston block 204, causing it to move upwards or downwards. When piston block 204 reaches its lowest position, the top region of piston groove 202 connects with the inlet of the top layer of tee pipe 205 (e.g., Figure 5 As shown), the second transfer channel 207 connects with the first channel ( Figure 5 The right side is connected, and when the piston block 204 is displaced to its highest position, the bottom area of ​​the piston groove 202 is connected to another inlet of the three-way pipe 205, and the first transfer channel 206 is connected to the first channel ( Figure 5 (Left side) Connected. By repeating this process, the top and bottom of the piston groove 202 cross to generate negative pressure, drawing the accumulated fluid in the patient's body into the piston groove 202, and finally into the storage chamber 301 for temporary storage.

[0073] Throughout the process, the rotating shaft 208 of the crushing mechanism rotates due to the reciprocating movement of the piston block 204, which drives the crushing blades 209 to stir and crush the drainage fluid in the piston groove 202, effectively breaking down impurities such as fat particles and necrotic tissue fragments, preventing them from accumulating and clogging the pipes, and ensuring smooth drainage.

[0074] The following is a multi-dimensional performance comparison analysis between this embodiment and traditional drainage devices:

[0075] One hundred patients who underwent breast cancer surgery were randomly divided into an experimental group and a control group, with 50 patients in each group. The experimental group used the postoperative drainage device for breast cancer as described in this embodiment, while the control group used a traditional drainage device.

[0076] Experimental environment

[0077] It was performed in the hospital's post-operative recovery ward.

[0078] Experimental steps

[0079] After the surgery, drainage was performed, and the color, characteristics, and drainage rate of the drainage fluid were observed. The time of drainage initiation was recorded. Simultaneously, the patient's vital signs, such as heart rate and blood pressure, were closely monitored to ensure postoperative stability.

[0080] The total volume of drainage fluid was recorded daily postoperatively, and the average daily drainage volume for each group of patients was calculated in mL. Precise measuring instruments were used during recording to ensure data accuracy.

[0081] Postoperatively, the patency of drainage tube 1 was observed every 2 hours, and the frequency of fat particle blockage was recorded in times / day. The criterion for blockage was poor or complete cessation of drainage fluid flow, and the patency could be restored through flushing or other procedures.

[0082] Postoperatively, the patient's position should be changed every 4 hours (e.g., from supine to lateral decubitus, sitting, etc.) to observe for reflux of the drainage fluid and record the number of reflux occurrences. Reflux rate = (number of reflux occurrences / total number of position changes) × 100%.

[0083] Record the number of days from the start of drainage to the removal of drainage tube 1 for each group of patients, and calculate the average number of days of drainage.

[0084] Experimental results

[0085] Indicator This Example Conventional drainage device Lifting amplitude Daily average drainage volume (mL) 380±25 240±35 58.3％ Fat particle clogging frequency 0.2 times / day 1.8 times / day 88.9％ Patient position change reverse flow rate 0％ 27％ 100％ Average drainage days 4.2 days 6.5 days 35.4％

[0086] Considering the improvements in all the above indicators, the postoperative drainage device for breast cancer in this embodiment demonstrates excellent performance in terms of drainage effect, safety, and stability, representing a qualitative leap compared to traditional drainage devices. Its highly efficient drainage capacity, low blockage rate, and zero backflow rate not only significantly improve the quality of postoperative recovery and reduce postoperative complications, but also reduce the workload of medical staff and improve the efficiency of medical resource utilization, thus possessing high clinical application value and significant potential for wider application.

[0087] For patients undergoing breast-conserving surgery, the device offers significant advantages in terms of aesthetics and psychological support:

[0088] Maintaining postoperative aesthetics: The device, through its efficient drainage and anti-blockage design, reduces the pressure and deformation of the skin flap caused by postoperative fluid accumulation, helping to maintain the shape and aesthetics of the breast.

[0089] Maintaining sexual attractiveness: By reducing postoperative complications and shortening recovery time, patients are able to return to normal life more quickly and maintain their confidence and sexual attractiveness.

[0090] Example 2

[0091] The only difference from Embodiment 1 is that a detection channel 201 is also connected between the first pipe 203 and the drainage pipe 1. In this embodiment, the detection channel 201 is located within the functional carrier 2, and its specific location is shown in the attached figure. Figure 4 As shown, the top of the detection channel 201 is connected to the first connector 101. A first acquisition module is installed inside the detection channel 201, which is used to acquire the drainage fluid parameters within the detection channel 201 in real time. Specifically, in this embodiment, the first acquisition module integrates an image sensor 211, a light-emitting element 212, a turbidity sensor, a pH sensor, and a temperature sensor 213. The drainage fluid parameters include the drainage fluid color, drainage fluid turbidity, drainage fluid pH value, and drainage fluid temperature. The inner wall of the detection channel 201 is made of medical-grade transparent polycarbonate material to ensure that the light transmittance of the optical sensors (image, turbidity) is >92%, and it also has an anti-protein adsorption coating to reduce artifact interference.

[0092] Image sensor 211: Captures the color (e.g., dark red for bloody effusion) and turbidity of drainage fluid (to determine the content of fibrin or purulent material). Specifically, a CMOS miniature camera (1280×720 resolution) is used to capture the morphology of drainage fluid: bloody effusion (dark red, RGB value < 100,0,0), chyle (milky white, HSV saturation > 70%), and pus (yellowish-green with flocculent material).

[0093] pH sensor: Utilizes an ion-sensitive field-effect transistor (ISFET) for direct contact measurement: normal postoperative effusion pH 7.3-7.5, acid production during bacterial infection → pH < 7.0, necrotic tissue dissolution → pH > 7.8.

[0094] Temperature sensor 213: A miniature thermocouple is embedded in the detection channel wall to monitor the temperature fluctuation of the drainage fluid: the temperature is >37.5℃ during local infection and rises by 0.5-1℃ in the early stage of bleeding due to active metabolism.

[0095] Turbidity sensor: The 90° scattered light measurement method is used to quantify the concentration of suspended particles (NTU value): NTU > 50 when fibrinogen > 2 g / L, and NTU > 100 for purulent secretions.

[0096] By overlaying data from multiple sensors (such as high turbidity + low pH + high temperature), early signs of infection can be accurately identified.

[0097] It also includes a control module, which is used to preliminarily determine the drainage status based on the drainage fluid parameters and control the operation of the pump assembly 302 (i.e., diaphragm pump, the same below).

[0098] Specifically, in this embodiment, the control module uses fuzzy logic to perform weighted analysis on multiple parameters (drainage fluid color, drainage fluid turbidity, drainage fluid pH value, and drainage fluid temperature):

[0099] RiskScore=0.4×ΔpH+0.3×ΔT+0.2×NTU+0.1×ColorIndex

[0100] In the formula, ΔpH represents the deviation (absolute value) of pH from the baseline value, and ΔT represents the cumulative time the temperature exceeds 37°C. A composite turbidity score is constructed by combining particle density data extracted from a turbidity sensor (NTU value) and an image sensor:

[0101] TurbidityScore = 0.6 × NTU + 0.4 × ParticleDensity (number of particles / mm²)

[0102] ColorIndex is calculated by weighting the principal color component (70%) and turbidity (30%).

[0103] ColorIndex = 0.7 × (R) norm +H norm +0.3×TurbidityScore

[0104] In the formula, R norm To normalize the red intensity, H norm This represents the hue offset.

[0105] For example, when the RiskScore > 0.7, the intervention is initiated, and the control module increases the diaphragm pump power by 50% and the negative pressure to -120 mmHg;

[0106] When RiskScore < 0.3, the control module will reduce the power of the diaphragm pump by 50% or stop it.

[0107] Example 3

[0108] The only difference from Embodiment 2 above is that it also includes a second acquisition module, a preprocessing module, a feature extraction module, an early warning model construction module, a model training and optimization module, and an early warning module.

[0109] The second acquisition module is used to collect historical drainage fluid parameters. Specifically, the historical data pool constructs drainage fluid parameters from 10,000 breast cancer surgery patients across multiple hospital campuses, including multi-dimensional parameters such as drainage fluid color (RGB / HSV), pH, temperature, and turbidity, as well as clinical outcome labels (infection / bleeding / normal). Acquisition frequency: Historical data is sampled at 5-minute intervals to form a time-series database. This high-frequency sampling can capture the dynamic changes in drainage fluid parameters during postoperative recovery, helping to identify potential abnormal patterns and trends.

[0110] The preprocessing module is used to preprocess historical drainage fluid parameters. Specifically, outlier handling includes: removing outliers using the 3σ principle (e.g., pH < 5.0 or > 9.0); and imputing missing data using linear interpolation (missing data rate < 5%).

[0111] Data standardization: Parameters for different types of drainage fluids were standardized. Specifically, the Min-Max normalization method was used to map pH values ​​from 7.0-7.8 to 0-1; for parameters such as temperature and turbidity, the Z-score normalization method was used to ensure they conformed to a standard normal distribution. Standardization helps eliminate differences in dimensions and magnitudes between different parameters, improving the model's efficiency and accuracy in processing data.

[0112] Sample balancing: Infected samples were augmented using SMOTE oversampling, with k=5 nearest neighbors, increasing the proportion of infected samples to 30%. Simultaneously, GAN data augmentation was used to simulate the characteristic spectrum of pus, enhancing the absorption peak at 580nm by 30-50%, further enriching the feature representation of infected samples. Sample balancing effectively addresses class imbalance, allowing the model to fully learn the features of each class during training and improving the predictive performance for the minority classes.

[0113] The feature extraction module is used to extract features from historical drainage fluid parameters and label these parameters, dividing them into training, validation, and test sets. Specifically, features that effectively characterize the drainage fluid status and postoperative recovery are extracted from the preprocessed historical drainage fluid parameters. These features may include principal component analysis results of drainage fluid color, pH trends, temperature fluctuations, and periodic changes in turbidity. Feature extraction transforms high-dimensional, complex data into low-dimensional feature vectors with clear physical meaning and discriminative power, improving model training efficiency and generalization ability. The extracted feature vectors are labeled according to clinical outcome tags to clarify the category (infection, bleeding, or normal) of each sample. The labeled data is then divided into training, validation, and test sets, typically allocated in a certain proportion (e.g., 60%, 20%, 20%). The training set is used for model training, the validation set for hyperparameter tuning and performance evaluation, and the test set for final evaluation of the model's generalization ability and practical application effectiveness.

[0114] The early warning model building module is used to construct a postoperative drainage early warning model using machine learning algorithms. Specifically, commonly used machine learning algorithms include, but are not limited to, Support Vector Machines (SVM), Random Forests (RF), and Neural Networks (NN). Based on data characteristics and task requirements, an appropriate algorithm is selected, and the model architecture is designed and parameters are initialized. For example, for drainage fluid parameter data with time-series characteristics, deep learning models that can effectively capture time dependencies, such as Long Short-Term Memory Networks (LSTM) or Gated Recurrent Units (GRUs), can be considered. The constructed postoperative drainage early warning model is trained using a labeled training set. During training, the model parameters are adjusted through optimization algorithms (such as gradient descent) to minimize prediction errors and accurately map the input drainage fluid parameter features to the corresponding clinical outcome labels. Simultaneously, techniques such as cross-validation are used to prevent overfitting and improve the model's generalization ability. The training process typically requires multiple iterations until the model exhibits stable performance on both the training and validation sets.

[0115] The model training and optimization module is used to train the constructed postoperative drainage early warning model using a labeled training set, and to optimize the model using a labeled validation and test set. Specifically, on the validation set, the model's performance is further improved by adjusting hyperparameters (such as regularization parameters, learning rate, and number of network layers); on the test set, the final performance of the model is objectively evaluated to ensure that it can accurately and stably predict new drainage fluid parameter data. Commonly used evaluation metrics include accuracy, recall, F1 score, and area under the ROC curve (AUC). These metrics are used to comprehensively judge the model's quality and to optimize and improve any shortcomings.

[0116] The control module is also used to input the drainage fluid parameters collected by the first acquisition module into the trained postoperative drainage early warning model to obtain recognition results, and to determine the degree of abnormality of the drainage fluid based on the recognition results. Specifically, in practical applications, the first acquisition module acquires the patient's drainage fluid parameters in real time and processes them according to the same preprocessing procedures as historical data, including outlier removal, missing value imputation, and data standardization, to ensure that the data input into the model has the same format and quality as the training data. The preprocessed real-time drainage fluid parameters are then input into the trained postoperative drainage early warning model, and the model outputs corresponding recognition results, which determine the degree of abnormality of the drainage fluid. If the predicted result indicates abnormalities such as infection or bleeding, the early warning module will issue an early warning signal in a timely manner according to the severity of the abnormality, reminding medical staff to take appropriate intervention measures, such as adjusting the drainage plan, conducting further examinations or treatments, thereby effectively avoiding postoperative complications and improving the patient's treatment effect and safety.

[0117] The early warning module is used to issue warnings based on the severity of the anomaly. Specifically, the early warning module employs a tiered response mechanism: for example:

[0118] When the model analyzes the drainage fluid parameters and determines that there is a risk of infection, and abnormal changes occur in the drainage flow rate and pH, a constant red alarm is triggered. This indicates that the patient has a high risk of postoperative infection, requiring immediate attention and appropriate measures from medical staff.

[0119] When the real-time monitored drainage volume exceeds the preset safety level, the red light flashes as an alarm, alerting medical staff that the patient's drainage volume is too large and there may be risks such as bleeding, requiring immediate attention.

[0120] If drainage tube 1 becomes blocked, resulting in poor drainage, the system will be unable to obtain normal drainage fluid parameters, and the alarm light will not illuminate. Medical staff need to determine whether a blockage exists based on clinical experience and other monitoring methods, and promptly clear drainage tube 1.

[0121] When the drainage fluid parameters are within the normal range, and the drainage flow rate and pH are normal, the green light will illuminate, indicating that the patient is recovering well after surgery and the drainage system is working normally.

[0122] When the model outputs a P(infection) > 0.8 or a P(bleeding) > 0.7, a Level I warning is triggered. At this time, the warning module issues an audible and visual alarm, simultaneously triggers the diaphragm pump to automatically start in low negative pressure mode, and notifies the attending physician to intervene immediately.

[0123] Example 4

[0124] The only difference from Embodiment 3 above is that it also includes a third acquisition module, a fourth acquisition module, and an ultrasonic auxiliary module; the third acquisition module is used to acquire the first pressure information of the drainage fluid between the piston groove 202 and the drainage tube 1; the fourth acquisition module is used to acquire the second pressure information of the drainage fluid between the piston groove 202 and the storage cavity 301; the ultrasonic auxiliary module is used to perform ultrasonic vibration on the drainage fluid in the piston groove 202. Specifically, in conjunction with the attached... Figure 4 As shown, the third acquisition module is Figure 4 The first pressure sensor 214 is installed inside the first connector 101 to monitor the pressure of the drainage fluid (denoted as P1) before it enters the piston groove 202 in real time. The fourth acquisition module is... Figure 4 The second pressure sensor 215 is installed inside the second connector 102 to monitor the pressure of the drain fluid (denoted as P2) after it flows out of the piston groove 202 in real time. The ultrasonic module (not shown in the figure) integrates an ultrasonic generator and an ultrasonic transducer, both of which are installed inside the side wall of the piston groove 202.

[0125] The control module is also used to determine the crushing effect of the crushing mechanism based on the difference between the first pressure information and the second pressure information, and to control the operation of the ultrasonic auxiliary module.

[0126] Preferably, the control module determines the crushing effect of the crushing mechanism through the following control logic: if the difference between the first pressure information and the second pressure information is lower than a preset range, the crushing effect is judged to be poor; if the difference between the first pressure information and the second pressure information is higher than a preset range, the crushing effect is judged to be poor; if the difference between the first pressure information and the second pressure information is within a preset range, the crushing effect is judged to be excellent.

[0127] Specific implementation process: During the drainage process, the third and fourth acquisition modules acquire the drainage fluid pressure information between the piston groove 202 and the drainage tube 1, and between the piston groove 202 and the storage chamber 301 in real time, and transmit the data to the control module.

[0128] The control module calculates the pressure difference ΔP = P1 - P2 in real time to characterize the flow resistance of the drainage fluid as it passes through the piston groove. Preset range setting: Based on clinical trial data, the reasonable range for ΔP is set at 20-50 mmHg (e.g., when fat particles are fully pulverized, ΔP ≈ 30 mmHg; when not pulverized, ΔP may be > 70 mmHg or < 10 mmHg).

[0129] The control module dynamically evaluates the working status of the crushing mechanism based on ΔP:

[0130] When ΔP < 20 mmHg

[0131] Judgment: The drainage fluid is too fluid, possibly due to insufficient pulverization, resulting in large particles not being broken down.

[0132] When ΔP>50mmHg

[0133] Judgment: The viscosity of the drainage fluid is too high or the efficiency of the pulverizing mechanism is insufficient, resulting in increased flow resistance.

[0134] When ΔP∈[20,50]mmHg

[0135] Judgment: The crushing mechanism is operating normally, and the particle size meets expectations (fat particle diameter ≤ 0.5mm).

[0136] When ΔP exceeds the preset range, the ultrasonic module initiates intervention:

[0137] Low-frequency mode (ΔP > 50 mmHg)

[0138] The ultrasonic generator emits a 40kHz low-frequency pulse, which acts on the drainage fluid in the piston groove through the transducer.

[0139] Function: Low-frequency vibration can break down fibrin clots, reduce liquid viscosity, and assist mechanical crushing mechanisms in reducing resistance.

[0140] High-frequency mode (ΔP < 20 mmHg)

[0141] Switching to a 120kHz high-frequency continuous wave, combined with the crushing blades, creates a cavitation effect.

[0142] Function: High-frequency cavitation can further break down residual tiny fat particles (0.1-0.3 mm in diameter) to prevent them from depositing and clogging pipes.

[0143] Example 5

[0144] The only difference from Embodiment 4 above is that a liquid level sensor 303 is provided in the storage chamber 301, which is used to monitor the liquid level in the storage chamber 301 in real time and transmit the liquid level information to the control module. The control module is also used to control the operation of the pump assembly 302 based on the information from the liquid level sensor 303, ensuring that the drainage volume in the storage chamber 301 is always kept within a safe and appropriate range.

[0145] When the liquid level is lower than the preset safe lower limit, the control module can appropriately increase the negative pressure intensity or dredging speed of the pump assembly 302 to accelerate the dredging process.

[0146] When the liquid level reaches or exceeds the preset safe upper limit, the control module automatically reduces the negative pressure of the pump assembly 302 or stops the operation of the pump to prevent the drainage fluid in the storage chamber from overflowing and avoid complications caused by excessive suction.

[0147] Example 6

[0148] The only difference from Embodiment 5 above is that it also includes a clinical information acquisition module, a drainage plan construction module, and an output module; the clinical information acquisition module is used to acquire the patient's clinical data.

[0149] Specifically, clinical data includes basic information such as age (e.g., 52 years old), tumor TNM stage (e.g., T2N1M0), lymph node dissection extent (e.g., axillary I+II group), and postoperative time (e.g., 6 hours postoperatively).

[0150] Physiological indicators: coagulation function (INR value 1.3), immune status (CD4+ count 450 / μL), body mass index (BMI 26.5), history of drug allergies (such as cephalosporin allergy).

[0151] Intraoperative data: blood loss (e.g., 300 mL), and placement of drainage tube 1 (e.g., 3rd intercostal space along the anterior axillary line).

[0152] The drainage plan construction module is used to input clinical data into a pre-trained drainage plan construction model to obtain personalized drainage plans. Specifically, the collected patient clinical data is input into the pre-trained drainage plan construction model. This model, based on big data analysis and machine learning algorithms, can generate personalized drainage plans according to the patient's individual characteristics and the severity of their condition, including parameter settings such as drainage start time, drainage speed, and negative pressure intensity.

[0153] The output module is used to send personalized traffic generation plans to the control module.

[0154] The control module is also used to control the operation of the pump assembly 302 based on a personalized drainage plan. The control module precisely controls the operation of the pump assembly 302 (such as a diaphragm pump) according to the parameter settings in the personalized drainage plan. For example, it adjusts the pump power and negative pressure intensity to ensure that the drainage process proceeds according to the predetermined plan, achieving precise and effective drainage.

[0155] Example 7

[0156] The only difference from Embodiment 6 above is that it also includes a monitoring frequency adjustment module, which is used to determine the patient's recovery stage based on the patient's clinical data and drainage fluid parameters, and adjust the acquisition frequency of the first acquisition module.

[0157] Specific implementation process: The monitoring frequency adjustment module comprehensively analyzes the patient's clinical data and drainage fluid parameters, and combines them with pre-set recovery stage judgment criteria to determine which stage of postoperative recovery the patient is in. For example, based on indicators such as changes in the color of the drainage fluid (gradually lightening from dark red), decrease in turbidity, and stable pH value within the normal range, it can be determined whether the patient has moved from the acute phase to the recovery phase.

[0158] Based on the determined recovery stage, the monitoring frequency adjustment module adjusts the acquisition frequency of the first acquisition module accordingly, following a preset monitoring frequency adjustment strategy. In the early postoperative period or during periods of unstable condition, full-parameter monitoring and high-frequency sampling are activated. At this time, the first acquisition module monitors all parameters of the drainage fluid at the highest acquisition frequency (e.g., once every 5 minutes) to ensure timely detection of potential problems. Simultaneously, the control module invokes the postoperative drainage early warning model to comprehensively analyze the acquired data and assess any abnormalities in the drainage fluid in real time.

[0159] As the patient's recovery stabilizes, the system switches to event-triggered mode. In this mode, the first acquisition module reduces its basic acquisition frequency (e.g., once per hour), only initiating high-frequency sampling and comprehensive analysis when significant fluctuations in drainage fluid parameters are detected (e.g., changes in drainage fluid color, an increase in turbidity exceeding 10%, or a pH value deviating from the normal range by more than 0.3). This mode effectively reduces data processing volume and system energy consumption while maintaining monitoring effectiveness.

[0160] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific structures and / or characteristics in the solutions 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 structure 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. A postoperative drainage device for breast cancer, comprising a drainage tube (1) and a negative pressure storage mechanism connected to the drainage tube (1) for aspirating and storing drainage fluid; characterized in that: A functional carrier (2) is provided on the communication path between the drainage tube (1) and the collection mechanism; a piston groove (202) is provided inside the functional carrier (2); The piston groove (202) is symmetrically connected to two sides by three-way pipes (205). The two inlets of the three-way pipes (205) are respectively connected to the two sides of the piston groove (202), and the outlets of the three-way pipes (205) are connected to the negative pressure storage mechanism. The piston groove (202) is also symmetrically connected to the two sides of the first pipe (203). One end of the first pipe (203) is connected to both sides of the piston groove (202), and the other end of the first pipe (203) is connected to the drain pipe (1). A piston block (204) is slidably fitted inside the piston groove (202). The piston block (204) has a first transfer channel (206) and a second transfer channel (207) which are arranged in a centrally symmetrical manner. When the piston block (204) moves back and forth, the first transfer channel (206) and the second transfer channel (207) are respectively connected to the first pipe (203) and the tee pipe (205). A crushing mechanism is also provided in the piston groove (202). The crushing mechanism is used to stir and crush the drainage liquid in the piston groove (202) based on the movement of the piston block (204).

2. The postoperative drainage device for breast cancer according to claim 1, characterized in that: The negative pressure storage mechanism includes a collection box (3); a storage chamber (301) is provided inside the collection box (3), the storage chamber (301) is connected to the outlet of the three-way pipe (205), and a pump assembly (302) is provided on the connection path between the storage chamber (301) and the three-way pipe (205).

3. The postoperative drainage device for breast cancer according to claim 2, characterized in that: The crushing mechanism includes a rotating shaft (208) and at least two sets of crushing blades (209); the rotating shaft (208) passes through the center of the piston block (204), the rotating shaft (208) and the piston block (204) are slidably engaged, the two ends of the rotating shaft (208) are rotatably connected to the inner wall of the piston groove (202), and the crushing blades (209) are radially fixedly connected to the two ends of the rotating shaft (208); a spiral groove (216) is provided on the side wall of the rotating shaft (208), and a protrusion (210) is slidably engaged in the spiral groove (216), and the protrusion (210) is fixedly connected to the piston block (204).

4. The postoperative drainage device for breast cancer according to claim 3, characterized in that: The first pipe (203) is also connected to the drainage pipe (1) by a detection channel (201). The detection channel (201) is equipped with a first acquisition module, which is used to acquire the drainage fluid parameters in the detection channel (201) in real time. It also includes a control module, which is used to preliminarily judge the drainage status based on the drainage fluid parameters and control the operation of the pump assembly (302).

5. The postoperative drainage device for breast cancer according to claim 4, characterized in that: It also includes a second acquisition module, a preprocessing module, a feature extraction module, an early warning model construction module, a model training and optimization module, and an early warning module; The second acquisition module is used to collect historical drainage fluid parameters; The preprocessing module is used to preprocess historical drainage fluid parameters; The feature extraction module is used to extract features from historical drainage fluid parameters and to label the historical drainage fluid parameters. The labeled historical drainage fluid parameters are then divided into training set, validation set and test set. The early warning model building module is used to build a postoperative drainage early warning model using machine learning algorithms; The model training and optimization module is used to train the constructed postoperative drainage early warning model using the labeled training set, and to optimize the postoperative drainage early warning model using the labeled validation set and test set. The control module is also used to input the drainage fluid parameters collected by the first acquisition module into the trained postoperative drainage early warning model to obtain the recognition results, and to judge the degree of abnormality of the drainage fluid based on the recognition results; The early warning module is used to issue warnings based on the severity of the anomaly.

6. The postoperative drainage device for breast cancer according to claim 5, characterized in that: It also includes a third acquisition module, a fourth acquisition module and an ultrasonic auxiliary module; the third acquisition module is used to acquire the first pressure information of the drainage fluid between the piston groove (202) and the drainage tube (1); the fourth acquisition module is used to acquire the second pressure information of the drainage fluid between the piston groove (202) and the storage cavity (301); the ultrasonic auxiliary module is used to perform ultrasonic vibration on the drainage fluid in the piston groove (202); The control module is also used to determine the crushing effect of the crushing mechanism based on the difference between the first pressure information and the second pressure information, and to control the operation of the ultrasonic auxiliary module.

7. The postoperative drainage device for breast cancer according to claim 6, characterized in that: The control module judges the crushing effect of the crushing mechanism through the following control logic: if the difference between the first pressure information and the second pressure information is lower than the preset range, the crushing effect is judged to be poor; if the difference between the first pressure information and the second pressure information is higher than the preset range, the crushing effect is judged to be poor; if the difference between the first pressure information and the second pressure information is within the preset range, the crushing effect is judged to be excellent.

8. The postoperative drainage device for breast cancer according to claim 7, characterized in that: A liquid level sensor (303) is installed in the storage chamber (301); the control module is also used to control the operation of the pump assembly (302) based on the information from the liquid level sensor (303).

9. The postoperative drainage device for breast cancer according to claim 8, characterized in that: It also includes a clinical information acquisition module, a drainage plan construction module, and an output module; the clinical information acquisition module is used to acquire patients' clinical data. The drainage plan construction module is used to input clinical data into a pre-trained drainage plan construction model to obtain a personalized drainage plan; the output module is used to send the personalized drainage plan to the control module; the control module is also used to control the operation of the pump component (302) based on the personalized drainage plan.

10. The postoperative drainage device for breast cancer according to claim 9, characterized in that: It also includes a monitoring frequency adjustment module, which is used to determine the patient's recovery stage based on the patient's clinical data and drainage fluid parameters, and adjust the acquisition frequency of the first acquisition module.

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