Negative pressure balance-based clinical ascites drainage equipment for digestive system department

Abstract

The digestive system department clinical ascites drainage equipment based on negative pressure balance comprises a drainage base, a control panel is embedded in the middle of one side of the drainage base, storage boxes are symmetrically arranged on the two sides of the control panel, and the top of the drainage base is sleeved with a drainage box; the pipe valve sleeve and the liquid storage box are subjected to zero-contact shunting through the pressing valve and the butt joint valve, and the precision is dynamically adjusted in combination with the negative pressure pump, so that organ injury caused by sudden pressure drop is avoided; the single-pumping storage box stores ascites in a subdivision sealed mode through a step-by-step pressing valve, an air inlet channel is automatically closed during shutdown, a rubber plug at the tail end is mechanically sealed, and backflow prevention and sample traceability are guaranteed. When turbidity / viscosity is detected to exceed the standard, the double-ring-pipe valve sleeve is switched to a flushing mode, the circulating water pump drives the cleaning fluid to circulate along a pipe gap, sediments on the pipe wall are removed, the locking ring is adjusted to be selectively injected into the abdominal cavity to dilute high-viscosity ascites, and the removing efficiency is improved in combination with secondary negative pressure suction.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a clinical ascites drainage device for gastroenterology based on negative pressure balance. Background Art

[0002] Ascites is one of the common clinical symptoms in gastroenterology. Various diseases such as cirrhosis, malignant tumors, tuberculous peritonitis, etc. can lead to the formation of ascites. A large amount of ascites can cause patients to have uncomfortable symptoms such as abdominal distension, abdominal pain, dyspnea, and lower limb edema, which seriously affect the patient's quality of life and physical health, and may even be life-threatening.

[0003] At present, ascites drainage is often used in clinical treatment to relieve the patient's symptoms. The traditional method of ascites drainage is usually to extract ascites through puncture, but this method has some disadvantages. For example, when extracting ascites manually, the extraction speed is difficult to accurately control. If the extraction is too fast, it may cause a sudden drop in intra-abdominal pressure, causing the patient to feel dizzy, palpitations and other discomforts, and may even induce serious complications such as hepatic encephalopathy. If the extraction is too slow, it will prolong the operation time, increase the patient's pain and infection risk.

[0004] In addition, traditional ascites drainage equipment is often unable to monitor and maintain intra-abdominal pressure balance in real time, which can easily lead to large fluctuations in intra-abdominal pressure during the drainage process, affecting the patient's physical condition and drainage effect. Moreover, the collection and treatment of ascites during the drainage process is not convenient and hygienic enough, and can easily cause ascites leakage and contamination, increasing the workload of medical staff and the probability of infection in patients.

[0005] In conjunction with the above content, it should be noted that: the Chinese patent application number CN2019209759773 discloses a clinical ascites drainage device for gastroenterology, which squeezes the air bag and uses negative pressure to flow the liquid into the drainage bottle. It relies more on manual adjustment of negative pressure, and there are problems such as pressure fluctuations leading to peritoneal adsorption damage and low drainage efficiency;

[0006] A Chinese patent with application number CN2022227858868 discloses an ascites drainage device, which uses a pull ring to drive a rubber stopper to move outward in a round tube through a pull rod, so as to draw negative pressure into the ascites drainage bag. It uses a pull rod type negative pressure generating device, which is cumbersome to operate and cannot dynamically compensate for changes in abdominal pressure, as well as regulate the pressure generated during negative pressure drainage, causing secondary damage to the patient's negative pressure area. Summary of the invention

[0007] The purpose of the present invention is to provide a clinical ascites drainage device for gastroenterology based on negative pressure balance to solve the problems raised.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A clinical ascites drainage device for gastroenterology based on negative pressure balance, comprising a drainage base, a control panel is embedded in the middle of one side of the drainage base, storage boxes are symmetrically arranged on both sides of the control panel, a drainage box is sleeved on the top of the drainage base, a drainage outer tube is arranged on one side of the drainage box, and a locking ring is sleeved on the outside of the drainage outer tube;

[0009] A plurality of groups of single-pump storage boxes are slidably sleeved on the other side of the drainage box body, a built-in bag body is arranged inside the box body of the single-pump storage box, a pump box close to the drainage outer tube is embedded inside the end surface of the drainage box body, and a liquid storage box is arranged at the bottom of the pump box;

[0010] A rapid drainage supervision platform is provided inside the control panel, and the rapid drainage supervision platform is communicatively connected to an ascites real-time data collection module, the ascites real-time data collection module is used to collect multi-dimensional parameters, and the collected multi-dimensional parameters are sent to an ascites parameter analysis module in the communication connection, the ascites parameter analysis module generates a control signal and a warning prompt character after analyzing the multi-dimensional parameters based on an algorithm, and sends them to the regulation and supervision module, the regulation and supervision module adjusts the operation of the ascites drainage equipment according to the control signal, and displays the text content on the display screen of the control panel according to the warning prompt character.

[0011] Furthermore, the drainage base is designed in a trapezoidal structure, and the groove on the top of the drainage base is provided with a rectangular groove that is sleeved with the drainage box body, and mortise and tenon interfaces are symmetrically provided at both ends of the rectangular groove. Horizontal insertion locking blocks that are inserted into the mortise and tenon interfaces and clamped with the two ends of the drainage box body are horizontally provided at both ends of the drainage base, and vertical insertion locking blocks that are inserted into the mortise and tenon interfaces and clamped with the horizontal insertion locking blocks are provided at both ends of the top of the drainage base.

[0012] Furthermore, the bottom of both ends of the drainage box are symmetrically recessed with card slots, the top center groove of the drainage box is provided with a compartment that is sleeved with the single-draw storage box, the top of the compartment is clamped with a cover, and a number of groups of distribution tubes are arranged side by side in the center of the top of the cover, and a press valve is provided between the groups of distribution tubes.

[0013] Furthermore, a plurality of groups of pipe valve sleeves connected to the drainage outer pipe are arranged on the outer wall of one side of the pump box, a negative pressure pump and a circulating water pump are arranged inside the pump box, handles are symmetrically hinged on the top of both ends of the drainage box body, and the card slots are connected with the horizontal locking blocks.

[0014] Furthermore, a card cover is provided on the top of the single-draw storage box, a docking valve is sleeved at the center of the top of the card cover, and a ring is provided at the bottom of the docking valve to be clamped with the bag opening at the top of the built-in bag body.

[0015] Furthermore, an inner suction tube is arranged inside the drainage outer tube, a swivel is rotatably sleeved on the outer center of the locking ring, a plurality of groups of reinforcing ribs are arranged in a circular array on the inner wall of the swivel, a rotating part sleeved on the outer wall of the inner suction tube is arranged between the reinforcing ribs, a plurality of groups of rubber plugs are arranged between the reinforcing ribs, and a plurality of groups of tube side openings close to the rubber plugs are arranged on the surface of the inner suction tube.

[0016] Furthermore, the drainage rapid monitoring platform generates an inspection instruction when the drainage device is started, and the inspection instruction is sent to the ascites real-time data collection module. After receiving the inspection instruction, the ascites real-time data collection module immediately collects multi-dimensional parameters of the patient and generates a control signal and an early warning prompt based on the algorithm;

[0017] The ascites data collection module includes a pressure sensing unit, a flow detection unit and an ascites characteristic collection unit, wherein the pressure sensing unit is used to collect the intra-abdominal pressure P_abd, the drainage tube pressure P_tube and the pump pressure difference △P_pump, the flow monitoring unit is used to collect the instantaneous flow Q_inst measured by the electromagnetic flowmeter, and the ascites characteristic unit collects the turbidity Turb and viscosity η;

[0018] The ascites parameter analysis unit analyzes the received parameters step by step through the pressure balance model, flow coefficient of variation evaluation and turbidity-viscosity joint warning module, and generates PID control signals and multi-level alarms based on them, and sends the PID control signals and multi-level alarms to the regulation and supervision module.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention realizes rapid transportation and stable placement of the equipment through the trapezoidal structure design of the handle and the drainage base, meeting the emergency drainage needs at the bedside. The external end of the drainage outer tube is protected by a drainage tube sleeve to avoid exposure and contamination of the tube mouth. The tube valve sleeve and the built-in bag body are physically isolated by a press valve and a docking valve to achieve zero-contact diversion. Based on the real-time collected intra-abdominal pressure and flow, the negative pressure pump adjusts the speed with high precision to stabilize the ascites drainage rate within a controllable range, avoid abdominal organ damage caused by a sudden drop in pressure, and build anti-pollution and safe drainage control.

[0021] 2. The present invention realizes compartmentalized storage of ascites through a single-pump storage box by gradually opening the push valve. Each built-in bag is sealed separately to facilitate subsequent biochemical detection and traceability. The air inlet channel is automatically closed when the negative pressure pump is shut down. The rubber plug at the end of the drainage outer tube forms a mechanical seal through a rotating ring, thereby constructing modular storage and anti-backflow protection.

[0022] 3. When the turbidity or viscosity exceeds the limit, the system prompts to switch to the flushing pipeline. The circulating water pump injects the cleaning fluid through the double-ring valve sleeve, and forms a circulation through the gap between the outer drainage tube and the inner suction tube. The removal rate of protein deposits on the tube wall is ≥95%. By adjusting the clamping position of the locking ring, part of the cleaning fluid can be controlled to enter the abdominal cavity. Combined with the secondary negative pressure drainage, the suspended particles in the high-viscosity ascites can be effectively removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the drainage base of the present invention;

[0026] Figure 3 It is a bottom view structural schematic diagram of the drainage box and the drainage outer tube of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the drainage box and the single-draw storage box of the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a single drawer storage box of the present invention;

[0029] Figure 6 It is a schematic diagram of the internal structure of the drainage box of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the drainage outer tube of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the lock ring of the present invention;

[0032] Fig. 9 It is a flow chart of the system of the present invention.

[0033] Figure numerals: 1. drainage base; 101. horizontal locking block; 102. vertical locking block; 2. drainage box; 201. slot; 202. pump box; 203. compartment; 204. cover; 205. shunt tube; 206. press valve; 207. tube valve sleeve; 208. negative pressure pump; 209. liquid storage box; 3. control panel; 4. drainage outer tube; 401. inner suction tube; 402. locking ring; 403. rubber plug; 404. reinforcing rib; 405. rotating part; 406. tube side port; 407. swivel; 5. storage box; 6. handle; 7. single-draw storage box; 701. cover; 702. docking valve; 703. built-in bag. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 - Figure 8 As shown, this embodiment is a clinical ascites drainage device for gastroenterology based on negative pressure balance, including a drainage base 1, a control panel 3 is embedded in the middle of one side of the drainage base 1, storage boxes 5 are symmetrically arranged on both sides of the control panel 3, a drainage box 2 is sleeved on the top of the drainage base 1, a drainage outer tube 4 is arranged on one side of the drainage box 2, and a locking ring 402 is sleeved on the outside of the drainage outer tube 4;

[0036] A plurality of single-draw storage boxes 7 are slidably sleeved on the other side of the drainage box 2, and a built-in bag body 703 is arranged inside the box body of the single-draw storage box 7. A pump box 202 close to the drainage outer tube 4 is embedded inside the end face of the drainage box 2, and a liquid storage box 209 is arranged at the bottom of the pump box 202. According to the ascites state of the patient, the ascites drainage device is carried to the patient's bed by the handle 6, and is stably placed by the drainage base 1 in contact with the bedside table, and the operation of the ascites drainage device is started by the control panel 3.

[0037] The drainage base 1 is designed in a trapezoidal structure. The top groove of the drainage base 1 is provided with a rectangular groove sleeved with the drainage box 2. Mortise and tenon joints are symmetrically provided at both ends of the rectangular groove. Horizontal plug lock blocks 101 inserted into the mortise and tenon joints and clamped with the two ends of the drainage box 2 are provided horizontally at both ends of the drainage base 1. Vertical plug lock blocks 102 inserted into the mortise and tenon joints and clamped with the horizontal plug lock blocks 101 are provided at both ends of the top of the drainage base 1.

[0038] The bottom of both ends of the drainage box 2 are symmetrically recessed with card slots 201, and the center groove on the top of the drainage box 2 is provided with a compartment 203 that is sleeved with the single-draw storage box 7. A cover 204 is clamped on the top of the compartment 203. A plurality of groups of manifolds 205 are arranged side by side in the center of the top of the cover 204, and a press valve 206 is provided between the plurality of groups of manifolds 205.

[0039] The drainage outer tube 4 implanted in advance in the patient's body by surgery is docked with the tube valve sleeve 207. In this state, the drainage outer tube 4 is limited by components such as straps, and before ascites drainage, a corresponding drainage tube sleeve is provided at one end of the outer side of the drainage outer tube 4 for protection, so as to avoid contamination of the drainage outer tube 4 and the inner suction tube 401.

[0040] A plurality of groups of pipe valve sleeves 207 connected to the drainage outer tube 4 are arranged on the outer wall of one side of the pump box 202, a negative pressure pump 208 and a circulating water pump are arranged inside the pump box 202, handles 6 are symmetrically hinged at the tops of both ends of the drainage box body 2, the card slot 201 is sleeved with the horizontal plug lock block 101, the negative pressure pump 208 inside the pump box 202 forms an ascites drainage circuit with the pipe valve sleeve 207 and the drainage outer tube 4 through a regulating valve and a connecting pipe fitting, and the negative pressure pump 208 is connected to the shunt pipe 205 pipeline through a connecting pipe fitting, forming an external discharge circuit for negative pressure drainage of ascites;

[0041] The operation of the negative pressure pump 208 is adjusted according to the amount of ascites accumulation and pressure in the patient's body, so as to extract a small amount of ascites at a uniform speed through the ascites guide line, to ensure that the negative pressure of ascites drainage in the patient's body remains balanced and decreases at a uniform speed, and to avoid manual sudden negative pressure traction or single-point guided pressure relief, which may cause an imbalance in the ascites pressure in the patient's body and cause secondary damage to the patient's body.

[0042] A card cover 701 is provided on the top of the single-draw storage box 7, and a docking valve 702 is sleeved at the center of the top of the card cover 701. A ring that is clamped with the top bag opening of the built-in bag body 703 is provided at the bottom of the docking valve 702. The external discharge line guides the extracted ascites step by step to the corresponding single-draw storage box 7 for separate storage of the ascites. This step requires applying force in advance to contact the pressing valve 206, prompting the pressing valve 206 to be pressed down and started, and temporarily docked with the card sleeve of the docking valve 702 to form a connected pressure relief pipeline, so that the ascites guided by negative pressure is poured into the built-in bag body 703, which is convenient for sealing, storing and protecting the built-in bag body 703. According to the extraction amount, the adjacent pressing valves 206 are opened step by step to divert the ascites to different built-in bag bodies 703 in a sealed environment.

[0043] An inner suction tube 401 is arranged inside the drainage outer tube 4, a swivel 407 is rotatably sleeved on the outer center of the lock ring 402, a plurality of groups of reinforcing ribs 404 are arranged in an annular array on the inner wall of the swivel 407, a rotating member 405 sleeved on the outer wall of the inner suction tube 401 is arranged between the reinforcing ribs 404, a plurality of groups of rubber plugs 403 are arranged at intervals between the reinforcing ribs 404, and a plurality of groups of tube side ports 406 close to the rubber plugs 403 are arranged on the surface of the inner suction tube 401;

[0044] Accordingly, the pressing valve 206 and the docking valve 702 are combined with the negative pressure pump 208 as an intermediate barrier and regulating mechanism, which effectively prevents the ascites from flowing back due to the suspension of negative pressure drainage or the pressure change in the patient's body. A sealing arrangement is provided at one end of the ascites discharge, which effectively prevents indoor air and pathogens in the air from entering along the inner part of the drainage outer tube 4.

[0045] During the patient's rest interval, when the ascites drainage is rechecked or the turbidity and viscosity of the ascites flowing through the tube exceed the limit, the tube wall protein deposits are generated, and the inner suction tube 401 between the patient's body and the locking ring 402 is clamped and blocked by an external medical machine, and a group of pipe valve sleeves 207 connected to the drainage outer tube 4 are replaced and connected to the circulating water pump. The medical cleaning liquid in the liquid storage box 209 is extracted by the circulating water pump and transported to the inside of the drainage outer tube 4. The rotating ring 407 drives the rubber plug 403 to rotate, causing the rubber plug 403 to move, thereby causing the upper tube side port 406 of the inner suction tube 401 to be connected with the drainage outer tube 4 to form a reflux pipeline. It should be noted that:

[0046] A double-ring structure is arranged inside the pipe valve sleeve 207 connected to the circulating water pump, the outer ring is connected to the connecting pipe of the circulating water pump, and the inner ring is connected to the negative pressure pump 208 and the shunt pipe 205, so that the medical cleaning liquid is transported along the gap between the drainage outer pipe 4 and the inner suction pipe 401, until it enters the inner suction pipe 401 along the side opening 406 of the pipe, and the inner wall of the inner suction pipe 401 is flushed, and the protein deposits on the flushed pipe wall are cleaned into the connected built-in bag body 703;

[0047] According to the state of protein deposits on the wall of the internal suction tube 401 in the patient's body, the clamping limit of the internal suction tube 401 between the patient's body and the locking ring 402 can be loosened to allow part of the medical cleaning fluid to enter the patient's abdominal cavity for diluting the ascites. The negative pressure pump 208 then conducts a secondary negative pressure treatment to clean up the protein deposits, turbidity, and ascites with high viscosity in the patient's abdominal cavity.

[0048] Example 2: Please refer to Fig. 9 As shown, this embodiment is a clinical ascites drainage device for gastroenterology based on negative pressure balance, including a control panel 3 with a rapid drainage monitoring platform disposed inside, and the rapid drainage monitoring platform is communicatively connected to an ascites data collection module;

[0049] The ascites real-time data collection module is used to collect multi-dimensional parameters. The drainage rapid supervision platform generates an inspection instruction when the drainage equipment is started. The inspection instruction is sent to the ascites real-time data collection module. After receiving the inspection instruction, the ascites real-time data collection module immediately collects multi-dimensional parameters of the patient.

[0050] The ascites data collection module includes a pressure sensing unit, a flow detection unit and an ascites characteristic collection unit. The pressure sensing unit is used to collect the intra-abdominal pressure P_abd, the drainage tube pressure P_tube and the pump pressure difference △P_pump, among which:

[0051] P_abd is obtained by the micro-optical fiber pressure sensor at the end of the drainage outer tube 4, and the range is 50~+50mmHg, but not limited thereto. The value is replaced according to the actual situation. The drainage tube pressure P_tube is obtained by the pressure sensor installed between the drainage outer tube 4 and the tube valve sleeve 207;

[0052] △P_pump is measured by the built-in differential pressure transmitter of the negative pressure pump 208.

[0053] The flow monitoring unit is used to collect the instantaneous flow Q_inst measured by the electromagnetic flowmeter, and calculate the cumulative flow Q_inst = ∫0^tQ_instdt by integration, where:

[0054] Q_total: total drainage volume from the start of drainage to the current time t, in mL;

[0055] Q_inst: instantaneous flow rate, i.e. the outflow of ascites per unit time monitored in real time, in mL / min;

[0056] ∫0^t: integral operation of time from the initial time 0 to the current time t;

[0057] dt: time element, in minutes, representing the integral variable;

[0058] By accumulating the instantaneous flow Q_inst at each moment over time t, the cumulative drainage volume is obtained:

[0059] If Q_inst is constant at 100 mL / min, then after 10 minutes Q_total = 100 mL / min × 10 min = 1000 mL;

[0060] If Q_inst changes with time, such as increasing linearly from 50 mL / min to 150 mL / min, the exact value must be calculated by integration.

[0061] The ascites characteristic unit collects turbidity Turb which is detected by a near infrared scattering sensor with a wavelength of 860nm;

[0062] Viscosity η is dynamically calculated based on the Hagen-Poiseuille equation η=(π·ΔP·r 4 ) / (8·L·Q_inst),

[0063] Where r is the inner radius of the drainage tube / mm, L is the effective length of the drainage tube / cm, and ΔP is the pressure difference of the tube section / kPa.

[0064] The collected multi-dimensional parameters are sent to the communication connection ascites parameter analysis module, and the ascites parameter analysis module generates a control signal and a warning prompt character after analyzing the multi-dimensional parameters based on an algorithm;

[0065] The ascites parameter analysis unit analyzes the data collected by the pressure sensing unit based on the pressure balance model:

[0066] P_balance=α·P_abd+β·(dP_abd / dt)+γ·Q_inst

[0067] Wherein: α=0.7 is the abdominal pressure weight coefficient, β=0.2 is the pressure change rate compensation factor, γ=0.1 is the flow feedback adjustment factor, dP_abd / dt represents the abdominal pressure change rate, and the calculation time window Δt=10s.

[0068] The ascites parameter analysis unit analyzes the data collected by the flow monitoring unit based on the flow coefficient of variation evaluation:

[0069] CV=(σ_Q / μ_Q)×100%

[0070] Where: σ_Q is the flow standard deviation (mL / min), μ_Q is the average flow (mL / min), and the sampling period is 5 minutes.

[0071] The ascites parameter analysis unit analyzes the data collected by the ascites characteristic unit based on the turbidity-viscosity joint warning model:

[0072] Risk_index=0.6·(Turb / 500)+0.4·(η / 3)

[0073] Wherein: Turb unit is NTU, η unit is mPa·s.

[0074] When |P_balance|>15mmHg, a PID control signal is generated to adjust the speed of the negative pressure pump, and a warning is displayed, "Pressure imbalance! It is recommended to adjust the pump speed to [XX]rpm".

[0075] Retrieve the CV value classification threshold and Risk_index limit value threshold from the rapid traffic supervision platform:

[0076] If CV<10%, a green level 1 alarm of “stable flow” will be displayed;

[0077] If CV ≥ 20%, the red secondary alarm will be triggered and displayed as “Risk of blockage! It is recommended to flush the pipeline”;

[0078] If Risk_index ≥ the limit value threshold, a level 3 alarm of "High viscosity & turbidity! Replace accessories immediately" is triggered and sent to the control and supervision module. The control and supervision module adjusts the operation of the ascites drainage device according to the control signal, and displays the text content on the display screen of the control panel 3 according to the warning prompt character to remind the on-site operator;

[0079] When the cumulative drainage volume Q_total reaches the preset safety threshold, such as the default 1500mL, the device automatically stops drainage and prompts: "The target drainage volume has been completed, please evaluate the patient's condition." The emergency manual operation module takes precedence over automatic control to ensure compliance with the YY / T0316 redundant safety standard.

[0080] It should be noted that: during the drainage process, when it is detected that dP_abd / dt is greater than 2 mmHg / s for 5 minutes, the system automatically switches to the pulse drainage mode with a frequency of f = 1 / Δt_pulse, where Δt_pulse is the preset pulse interval, ranging from 1 to 60 seconds;

[0081] When a "blocking risk" warning appears, the circulating water pump starts the flushing program, and the flushing liquid flow rate Q_rinse = 0.8·Q_inst. The calculation reference value is not limited to this.

[0082] Combining the first and second embodiments, it can be seen that the trapezoidal drainage base 1 and the magnetic handle 6 are used to achieve rapid transportation and stable placement beside the bed, the end of the drainage outer tube 4 is provided with a protective sleeve to prevent contamination, the tube valve sleeve 207 and the liquid storage box 209 are zero-contact shunted by the pressing valve 206-docking valve 702, and the negative pressure pump 208 is combined to dynamically adjust the accuracy of ±5% to avoid pressure drop causing organ damage;

[0083] The single-draw storage box 7 stores ascites in compartments and seals them through step-by-step pressing valves 206. The air inlet channel is automatically closed when the machine is shut down. The end rubber plug 403 is mechanically sealed to ensure backflow prevention and sample traceability.

[0084] When the turbidity / viscosity exceeds the standard, the double-ring tube valve sleeve 207 switches to the flushing mode, and the circulating water pump drives the cleaning fluid to circulate along the tube gap to remove ≥95% of the tube wall deposits. The adjustable lock ring 402 can be selectively injected into the abdominal cavity to dilute the high-viscosity ascites, and the secondary negative pressure suction is combined to improve the removal efficiency.

[0085] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A gastroenterology clinical ascites drainage device based on negative pressure balance, comprising a drainage base (1), characterized in that: A control panel (3) is embedded in the middle of one side of the drainage base (1), and storage boxes (5) are symmetrically arranged on both sides of the control panel (3); a drainage box (2) is sleeved on the top of the drainage base (1), and a drainage outer tube (4) is arranged on one side of the drainage box (2), and a locking ring (402) is sleeved on the outside of the drainage outer tube (4); A plurality of groups of single-pump storage boxes (7) are slidably sleeved on the other side of the drainage box body (2), and a built-in bag body (703) is arranged inside the box body of the single-pump storage box (7). A pump box (202) close to the drainage outer tube (4) is embedded inside the end surface of the drainage box body (2), and a liquid storage box (209) is arranged at the bottom of the pump box (202); The control panel (3) is internally provided with a drainage rapid monitoring platform, and the drainage rapid monitoring platform is communicatively connected to an ascites real-time data collection module, the ascites real-time data collection module is used to collect multi-dimensional parameters, and send the collected multi-dimensional parameters to the ascites parameter analysis module which is communicatively connected, the ascites parameter analysis module generates a control signal and a warning prompt character after analyzing the multi-dimensional parameters based on an algorithm, and sends the control signal and the warning prompt character to the regulation and supervision module, the regulation and supervision module adjusts the operation of the ascites drainage device according to the control signal, and displays the text content on the display screen of the control panel (3) according to the warning prompt character.

2. The clinical ascites drainage device for gastroenterology based on negative pressure balance according to claim 1 is characterized in that: The drainage base (1) is designed in a trapezoidal structure. The top groove of the drainage base (1) is provided with a rectangular groove which is sleeved with the drainage box (2). Mortise and tenon joints are symmetrically provided at both ends of the rectangular groove. Horizontal insertion locking blocks (101) which are inserted into the mortise and tenon joints and are clamped with the two ends of the drainage box (2) are provided at both ends of the drainage base (1). Vertical insertion locking blocks (102) which are inserted into the mortise and tenon joints and are clamped with the horizontal insertion locking blocks (101) are provided at both ends of the top of the drainage base (1).

3. The clinical ascites drainage device for gastroenterology based on negative pressure balance according to claim 1, characterized in that: The bottom of both ends of the drainage box (2) are symmetrically recessed with card slots (201), the top center groove of the drainage box (2) is provided with a compartment (203) that is sleeved with the single-draw storage box (7), the top of the compartment (203) is snap-fitted with a cover (204), a plurality of groups of manifolds (205) are arranged side by side at the center of the top of the cover (204), and a pressing valve (206) is provided between the plurality of groups of manifolds (205).

4. The clinical ascites drainage device for gastroenterology based on negative pressure balance according to claim 3 is characterized in that: A plurality of groups of pipe valve sleeves (207) connected to the drainage outer tube (4) are arranged on the outer wall of one side of the pump box (202), a negative pressure pump (208) and a circulating water pump are arranged inside the pump box (202), and handles (6) are symmetrically hinged at the top of both ends of the drainage box body (2).

5. The clinical ascites drainage device for gastroenterology based on negative pressure balance according to claim 1, characterized in that: The single-draw storage box (7) is provided with a card cover (701) at the top, a docking valve (702) is sleeved at the center of the top of the card cover (701), and a ring is provided at the bottom of the docking valve (702) for clamping with the top bag opening of the built-in bag body (703).

6. The clinical ascites drainage device for gastroenterology based on negative pressure balance according to claim 1, characterized in that: An inner suction tube (401) is arranged inside the drainage outer tube (4), a swivel (407) is rotatably sleeved on the outer center of the locking ring (402), a plurality of groups of reinforcing ribs (404) are arranged in a circular array on the inner wall of the swivel (407), a rotating member (405) sleeved on the outer wall of the inner suction tube (401) is arranged between the reinforcing ribs (404), a plurality of groups of rubber plugs (403) arranged at intervals are arranged between the reinforcing ribs (404), and a plurality of groups of tube side openings (406) close to the rubber plugs (403) are arranged on the surface of the inner suction tube (401).

7. The clinical ascites drainage device for gastroenterology based on negative pressure balance according to claim 1, characterized in that: The drainage rapid monitoring platform generates an inspection instruction when the drainage device is started, and the inspection instruction is sent to the ascites real-time data collection module. After receiving the inspection instruction, the ascites real-time data collection module immediately collects multi-dimensional parameters of the patient and generates a control signal and an early warning prompt based on the algorithm; The ascites data collection module includes a pressure sensing unit, a flow detection unit and an ascites characteristic collection unit, wherein the pressure sensing unit is used to collect the intra-abdominal pressure P_abd, the drainage tube pressure P_tube and the pump pressure difference △P_pump, the flow monitoring unit is used to collect the instantaneous flow Q_inst measured by the electromagnetic flowmeter, and the ascites characteristic unit collects the turbidity Turb and viscosity η; The ascites parameter analysis unit analyzes the received parameters step by step through the pressure balance model, flow coefficient of variation evaluation and turbidity-viscosity joint warning module, and generates PID control signals and multi-level alarms based on them, and sends the PID control signals and multi-level alarms to the regulation and supervision module.

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