In-vivo effusion drainage device

Abstract

The invention provides an in-vivo effusion drainage device, and belongs to the technical field of drainage devices, the in-vivo effusion drainage device comprises a fixed base, a support stand column, an operation platform, a drainage assembly and a cleaning assembly; the fixed base is disc-shaped, and an anti-skid pad and lockable universal wheels are arranged at the bottom of the fixed base; the supporting stand column is vertically fixed to the center position of the fixed base. The operating platform is fixedly mounted at the top ends of the supporting columns; the drainage assembly is mounted on the operation platform; the negative pressure drainage bottle is made of a transparent material; one end of the drainage tube is communicated with the top of the negative pressure drainage bottle; the negative pressure pump is communicated with the top of the negative pressure drainage bottle through a hose; the cleaning assembly is mounted on the operation platform; one end of the cleaning tube is communicated with the bottom of the cleaning liquid storage bottle, and the other end of the cleaning tube is connected with the middle section of the drainage tube through a three-way joint; the injection pump is connected with the cleaning pipe and used for controlling injection of the cleaning fluid, and the defect that a traditional negative pressure drainage device is poor in mobility is overcome.

Description

Technical Field

[0001] The present invention belongs to the technical field of drainage devices, and in particular, relates to a drainage device for accumulated fluid in the body. Background Art

[0002] Fluid accumulation in the body is a common pathological phenomenon in clinical practice and can occur in multiple body cavities, such as the thoracic cavity, abdominal cavity, pericardial cavity, etc. The presence of fluid accumulation not only affects the patient's physiological functions, but may also lead to serious complications. Therefore, timely and effective drainage of fluid accumulation in the body is crucial to the treatment and rehabilitation of patients. In cardiovascular medicine, traditional methods of drainage of fluid accumulation in the body mainly include puncture drainage and indwelling drainage tubes. Puncture drainage is simple to operate, but it is only suitable for one-time drainage of a small amount of fluid accumulation, and is not effective for large or repeated fluid accumulation. Indwelling drainage tubes can achieve continuous drainage, but there are problems such as increased risk of infection and limited patient activity.

[0003] In recent years, with the advancement of medical technology, negative pressure drainage technology has been widely used. This technology accelerates the discharge of effusion and promotes tissue healing by applying negative pressure in the drainage system. However, the existing negative pressure drainage devices still have some shortcomings: poor mobility: most devices are large in size and are not convenient to move in the ward, which limits the patient's range of activities. Complex operation: drainage, cleaning and other operation steps are cumbersome, which increases the workload of medical staff. Inconvenient monitoring: parameters such as effusion volume and drainage speed are difficult to monitor accurately in real time, affecting the evaluation of treatment effects. Lack of cleaning function: long-term drainage is prone to pipeline blockage, and most devices lack an effective cleaning mechanism. Insufficient adjustability: it is difficult to flexibly adjust the drainage parameters according to the specific situation of the patient. Safety needs to be improved: there are safety hazards such as overflow and reflux. Inconvenient maintenance: daily maintenance work such as equipment cleaning, disinfection, and replacement of parts is cumbersome. In view of the above problems, it is urgent to develop a new type of drainage device for in vivo effusion to improve drainage efficiency, improve patient experience, and reduce the workload of medical staff, so as to better meet clinical needs. Summary of the invention

[0004] In view of this, the present invention provides a body fluid drainage device, which solves the disadvantage of poor mobility of traditional negative pressure drainage devices and improves the mobility of the device.

[0005] The present invention is achieved in that:

[0006] The present invention provides a device for draining fluid accumulation in the body, comprising:

[0007] Fixed base, support column, operating platform, drainage assembly and cleaning assembly;

[0008] The fixed base is in the shape of a disc, and is provided with an anti-skid pad and lockable universal wheels at the bottom;

[0009] The support column is vertically fixed to the center of the fixed base. The support column is a telescopic structure, including an outer sleeve and an inner sleeve. The outer sleeve is fixed to the fixed base, and the inner sleeve is slidably inserted into the outer sleeve. A locking mechanism is provided between the inner sleeve and the outer sleeve.

[0010] The operating platform is fixedly installed on the top of the supporting column, the operating platform is rectangular, and a groove is provided on the upper surface;

[0011] The drainage assembly is installed on the operating platform and includes a negative pressure drainage bottle, a drainage tube and a negative pressure pump;

[0012] The negative pressure drainage bottle is made of transparent material and is cylindrical in shape. The outer wall is engraved with scale lines and the bottom is provided with a fixing seat, which is inserted into the groove of the operating platform.

[0013] One end of the drainage tube is connected to the top of the negative pressure drainage bottle, and the other end is provided with a drainage needle;

[0014] The negative pressure pump is connected to the top of the negative pressure drainage bottle through a hose;

[0015] The cleaning assembly is installed on the operating platform and includes a cleaning liquid storage bottle, a cleaning tube and an injection pump;

[0016] The cleaning liquid storage bottle is made of transparent material and is cylindrical in shape. The outer wall is engraved with scale lines and the bottom is provided with a fixing seat, which is inserted into the groove of the operating platform.

[0017] One end of the cleaning pipe is connected to the bottom of the cleaning liquid storage bottle, and the other end is connected to the middle section of the drainage pipe through a three-way joint;

[0018] The injection pump is connected to the cleaning pipe and is used to control the injection of the cleaning liquid.

[0019] On the basis of the above technical solution, the device for draining fluid accumulation in the body of the present invention can also be improved as follows:

[0020] Wherein, an annular baffle extending upward is provided on the edge of the fixed base, and a plurality of through holes are evenly arranged on the annular baffle;

[0021] A ring-shaped tray for placing medical equipment is provided on the top of the fixed base, and the ring-shaped tray is connected to the fixed base via a plurality of support rods;

[0022] The annular tray is provided with an anti-skid pad to prevent the medical device from slipping.

[0023] Furthermore, the locking mechanism of the support column includes a plurality of through holes arranged on the outer sleeve and a plurality of slots arranged on the inner sleeve corresponding to the through holes;

[0024] An elastic bayonet is provided in the through hole, one end of which is fixed to the inner wall of the outer sleeve, and the other end of which can extend into the slot of the inner sleeve;

[0025] The outer sleeve is also provided with an unlocking button corresponding to the elastic bayonet, and the unlocking button is connected to the outer sleeve through a spring.

[0026] Furthermore, the edge of the operating platform is provided with a guardrail extending upward, the guardrail is surrounded by a rectangular shape, and the four corners are arc transitions;

[0027] A handle is provided on one side of the operating platform. The handle is a U-shaped structure, and both ends of the handle are fixed to the side of the operating platform by bolts;

[0028] The bottom of the operating platform is provided with reinforcing ribs, which are distributed radially and connected to the supporting columns at the center.

[0029] Furthermore, a sealing cover is provided on the top of the negative pressure drainage bottle, and four interfaces are provided on the sealing cover, which are respectively used to connect the drainage tube, the negative pressure pump hose, the overflow protection tube and the water seal device;

[0030] The water seal device adopts the curved water cover principle of the sewer, including a U-shaped pipe and scale marks;

[0031] One end of the U-shaped tube is connected to the interface on the sealing cover, and the other end extends to the inside of the negative pressure drainage bottle;

[0032] An appropriate amount of disinfectant is pre-injected into the U-shaped tube to form a water seal;

[0033] The outer wall of the U-shaped tube is provided with scale marks for observing water level changes;

[0034] The overflow protection tube extends to a preset liquid level height inside the negative pressure drainage bottle;

[0035] The negative pressure drainage bottle is provided with a stirring device, including a stirring shaft and a stirring blade, and the top end of the stirring shaft passes through the sealing cover and is connected to the hand crank;

[0036] A drain valve is provided at the bottom of the negative pressure drainage bottle to facilitate emptying and cleaning of the drainage bottle.

[0037] The beneficial effect of adopting the above-mentioned improvement scheme is that the water seal device can effectively prevent air backflow and maintain the airtightness of the negative pressure system.

[0038] The change in liquid height in the U-tube can intuitively reflect the negative pressure of the drainage system, making it easier for medical staff to monitor.

[0039] The water seal device can also serve as a safety valve. When the negative pressure is too large, bubbles will emerge through the water seal to prevent harm to the patient.

[0040] Using disinfectant as a water seal liquid can provide additional bactericidal effects and reduce the risk of infection.

[0041] Adding a water seal device to the negative pressure drainage bottle can significantly improve the safety and reliability of the device.

[0042] Furthermore, the drainage tube is made of a soft transparent material and is covered with a protective layer on the outside;

[0043] The drainage tube is provided with a plurality of marking lines for indicating the insertion depth;

[0044] A flow regulating valve is provided in the middle section of the drainage tube. The flow regulating valve is a roller-type structure and the flow is adjusted by squeezing the drainage tube.

[0045] The drainage needle is of replaceable design and is connected to the drainage tube via a thread, and the surface of the drainage needle is coated with an anticoagulant coating;

[0046] The drainage tube is also provided with a plurality of side holes to prevent a single opening from being blocked and causing poor drainage.

[0047] Furthermore, the negative pressure pump is a manual air pump, comprising a pump body, a piston and a one-way valve;

[0048] The pump body is made of transparent material and has scale lines inside;

[0049] A sealing ring is provided between the piston and the pump body, and the piston rod extends outside the pump body and is connected to the handle;

[0050] The one-way valve is installed at the air inlet and outlet of the pump body to control the flow direction of the gas;

[0051] The negative pressure pump is also equipped with a pressure gauge for monitoring the negative pressure.

[0052] Furthermore, a liquid filling port is provided on the top of the cleaning liquid storage bottle, and a sealing cover is provided on the liquid filling port;

[0053] A drain valve is provided at the bottom of the cleaning liquid storage bottle, and the drain valve is connected to the cleaning pipe;

[0054] A liquid level indicator is arranged in the cleaning liquid storage bottle. The liquid level indicator is a float structure and displays the liquid level outside the bottle wall through magnetic coupling.

[0055] Furthermore, the injection pump is a manually-propelled structure, comprising a propeller body, a propeller rod and a scale display window;

[0056] The thruster body is connected to the cleaning pipe and has a piston inside;

[0057] The propulsion rod is connected to the piston, and a rack is provided on the propulsion rod to cooperate with a ratchet mechanism on the propulsion body;

[0058] The scale display window is arranged on the side of the thruster body and is used to display the injection volume;

[0059] The thruster body is also provided with a quick retraction button for releasing the lock of the ratchet mechanism;

[0060] The injection pump is also equipped with a pressure limiting valve to prevent the injection pressure from being too high.

[0061] Furthermore, the device also includes a fixing component, which is arranged on one side of the fixing base and is used to fix the entire device on the bed guardrail;

[0062] The fixing assembly includes a fixing seat, a clamping arm and a locking mechanism;

[0063] The fixing seat is welded to one side of the fixing base, a vertical slide groove is provided on the fixing seat, and the clamping arm is slidably connected in the vertical slide groove;

[0064] The inner end of the clamping arm is provided with an anti-skid pad, which is made of medical grade silicone material and has anti-skid patterns on the surface;

[0065] The locking mechanism comprises a locking bolt which penetrates through the fixing seat and is threadedly connected with the clamping arm.

[0066] Compared with the prior art, the beneficial effects of the body fluid drainage device provided by the present invention are:

[0067] 1. Improved mobility: The disc-shaped fixed base and lockable universal wheels are used to greatly improve the mobility of the device. The support column adopts a telescopic structure, and the height can be adjusted according to needs to adapt to different usage environments. These designs enable patients to move moderately while maintaining drainage, which is conducive to recovery;

[0068] 2. Simplify the operation process: The drainage component and the cleaning component are integrated on one operation platform, realizing the integration of drainage and cleaning functions. The groove design on the operation platform facilitates the rapid replacement and fixation of each component, greatly simplifies the operation process, and reduces the workload of medical staff;

[0069] 3. Accurate monitoring: The negative pressure drainage bottle and the cleaning fluid storage bottle are made of transparent material, and the outer wall is engraved with scale lines, which is convenient for real-time observation and recording of the amount of effusion. The negative pressure pump is equipped with a pressure gauge to accurately monitor the negative pressure. These designs help medical staff to grasp the drainage situation in time and make reasonable treatment adjustments;

[0070] 4. Efficient cleaning: The innovative introduction of cleaning components, connected to the drainage tube through a three-way connector, can regularly clean the pipeline and effectively prevent blockage. The design of the injection pump makes the cleaning process more controllable and improves the cleaning efficiency;

[0071] 5. Flexible adjustment: The design of flow control valve and replaceable drainage needle allows the drainage parameters to be flexibly adjusted according to the specific conditions of the patient. The locking mechanism of the support column also facilitates the adjustment of the height of the device to meet different usage requirements;

[0072] 6. Improved safety: The overflow protection tube designed on the top of the negative pressure drainage bottle can effectively prevent liquid overflow. The multiple side hole design of the drainage tube reduces the risk of blockage of a single opening. These safety measures greatly reduce the risk during use;

[0073] 7. Easy maintenance: Each component adopts modular design, which is easy to disassemble, clean and replace. The drain valve design at the bottom of the negative pressure drainage bottle and the cleaning liquid storage bottle is convenient for emptying and cleaning. These features greatly simplify daily maintenance work;

[0074] 8. Humanized design: The operating platform is equipped with guardrails and handles to improve the safety and comfort of operation. The ring tray on the fixed base provides storage space for medical equipment for easy access;

[0075] 9. Multifunctional integration: This device integrates multiple functions such as drainage, cleaning, monitoring, and regulation, which fully meets the clinical use needs and improves the overall treatment effect;

[0076] To sum up, the body fluid drainage device of the present invention has significant improvements in mobility, operational convenience, monitoring accuracy, cleaning efficiency, adjustment flexibility, safety, and maintenance convenience, overcoming many shortcomings of the prior art and providing a more efficient, safe, and convenient solution for clinical treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0078] Figure 1 This is an example diagram of a device for draining fluid accumulation in the body;

[0079] Figure 2 This is an example diagram of an operating platform of a device for draining fluid accumulation in the body;

[0080] Figure 3 This is an example diagram of a fixed base of a device for draining fluid accumulation in the body;

[0081] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0082] 10. Fixed base; 11. Ring tray; 12. Fixed assembly; 20. Support column; 21. Outer sleeve; 22. Inner sleeve; 23. Locking mechanism; 30. Operating platform; 31. Guardrail; 40. Drainage assembly; 41. Negative pressure drainage bottle; 411. Sealing cover; 412. Stirring device; 42. Drainage tube; 43. Negative pressure pump; 44. Water seal device; 45. Overflow protection tube; 50. Cleaning assembly; 51. Cleaning liquid storage bottle; 52. Cleaning tube; 53. Injection pump. DETAILED DESCRIPTION

[0083] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0084] Embodiment 1:

[0085] like Figure 1 , Figure 2 , Figure 3 FIG. 1 is a first embodiment of a device for draining fluid accumulation in the body provided by the present invention. In this embodiment, the device comprises:

[0086] A fixed base 10, a support column 20, an operating platform 30, a drainage component 40 and a cleaning component 50;

[0087] The fixed base 10 is disc-shaped, and is provided with an anti-skid pad and lockable universal wheels at the bottom;

[0088] The support column 20 is vertically fixed to the center of the fixed base 10. The support column 20 is a telescopic structure, including an outer sleeve 21 and an inner sleeve 22. The outer sleeve 21 is fixed to the fixed base 10, and the inner sleeve 22 is slidably inserted into the outer sleeve 21. A locking mechanism 23 is provided between the inner sleeve 22 and the outer sleeve 21.

[0089] The operating platform 30 is fixedly mounted on the top of the supporting column 20. The operating platform 30 is rectangular and has a groove on its upper surface.

[0090] The drainage assembly 40 is installed on the operating platform 30, and includes a negative pressure drainage bottle 41, a drainage tube 42 and a negative pressure pump 43;

[0091] The negative pressure drainage bottle 41 is made of transparent material and is cylindrical, with scale lines engraved on the outer wall and a fixing seat at the bottom, which is inserted into the groove of the operating platform 30;

[0092] One end of the drainage tube 42 is connected to the top of the negative pressure drainage bottle 41, and the other end is provided with a drainage needle;

[0093] The negative pressure pump 43 is connected to the top of the negative pressure drainage bottle 41 through a hose;

[0094] The cleaning assembly 50 is installed on the operating platform 30, and includes a cleaning liquid storage bottle 51, a cleaning pipe 52 and an injection pump 53;

[0095] The cleaning liquid storage bottle 51 is made of transparent material and is cylindrical, with scale lines engraved on the outer wall and a fixing seat at the bottom, which is inserted into the groove of the operating platform 30;

[0096] One end of the cleaning tube 52 is connected to the bottom of the cleaning liquid storage bottle 51, and the other end is connected to the middle section of the drainage tube 42 through a three-way joint;

[0097] The injection pump 53 is connected to the cleaning pipe 52 and is used to control the injection of the cleaning liquid.

[0098] Among them, in the above technical solution, an annular baffle extending upward is provided on the edge of the fixed base 10, and a plurality of through holes are evenly arranged on the annular baffle;

[0099] A ring tray 11 for placing medical devices is provided on the top of the fixed base 10, and the ring tray 11 is connected to the fixed base 10 via a plurality of support rods;

[0100] An anti-skid pad is provided on the annular tray 11 to prevent the medical equipment from slipping.

[0101] Further, in the above technical solution, the locking mechanism 23 of the support column 20 includes a plurality of through holes provided on the outer sleeve 21 and a plurality of slots provided on the inner sleeve 22 corresponding to the through holes;

[0102] An elastic bayonet is provided in the through hole, one end of which is fixed to the inner wall of the outer sleeve 21, and the other end of which can extend into the slot of the inner sleeve 22;

[0103] The outer sleeve 21 is also provided with an unlocking button corresponding to the elastic latch, and the unlocking button is connected to the outer sleeve 21 via a spring.

[0104] Furthermore, in the above technical solution, a guardrail 31 extending upward is provided at the edge of the operating platform 30, and the guardrail 31 is surrounded by a rectangular shape, and the four corners are arc transitions;

[0105] A handle is provided on one side of the operating platform 30. The handle is a U-shaped structure, and both ends of the handle are fixed to the side of the operating platform 30 by bolts.

[0106] The bottom of the operating platform 30 is provided with reinforcing ribs, which are distributed radially and connected to the supporting column 20 at the center.

[0107] Further, in the above technical solution, a sealing cover 411 is provided on the top of the negative pressure drainage bottle 41, and four interfaces are provided on the sealing cover 411, which are respectively used to connect the drainage tube 42, the negative pressure pump hose, the overflow protection tube 45 and the water seal device 44;

[0108] The water seal device 44 adopts the curved water cover principle of the sewer, including a U-shaped pipe and scale markings;

[0109] One end of the U-shaped tube is connected to the interface on the sealing cover 411, and the other end extends to the inside of the negative pressure drainage bottle 41;

[0110] Inject an appropriate amount of disinfectant into the U-shaped tube in advance to form a water seal;

[0111] The outer wall of the U-tube is provided with scale marks for observing water level changes;

[0112] The overflow protection tube 45 extends to a preset liquid level height inside the negative pressure drainage bottle 41;

[0113] A stirring device 412 is provided in the negative pressure drainage bottle 41, including a stirring shaft and stirring blades, and the top end of the stirring shaft passes through the sealing cover 411 and is connected to a hand crank;

[0114] A drain valve is provided at the bottom of the negative pressure drainage bottle 41 to facilitate emptying and cleaning of the drainage bottle.

[0115] Furthermore, in the above technical solution, the drainage tube 42 is made of a soft transparent material and is covered with a protective layer on the outside;

[0116] The drainage tube 42 is provided with a number of marking lines to indicate the insertion depth;

[0117] A flow regulating valve is provided in the middle section of the drainage tube 42. The flow regulating valve is a roller-type structure, and the flow is adjusted by squeezing the drainage tube 42.

[0118] The drainage needle is of replaceable design and is connected to the drainage tube 42 via a thread. The surface of the drainage needle is coated with an anticoagulant coating.

[0119] The drainage tube 42 is also provided with a plurality of side holes to prevent a single opening from being blocked and causing poor drainage.

[0120] Further, in the above technical solution, the negative pressure pump 43 is a manual air pump, including a pump body, a piston and a one-way valve;

[0121] The pump body is made of transparent material and has scale lines inside;

[0122] A sealing ring is provided between the piston and the pump body, and the piston rod extends outside the pump body and is connected to the handle;

[0123] The one-way valve is installed at the air inlet and outlet of the pump body to control the gas flow direction;

[0124] The negative pressure pump 43 is also equipped with a pressure gauge for monitoring the negative pressure.

[0125] Furthermore, in the above technical solution, a liquid filling port is provided on the top of the cleaning liquid storage bottle 51, and a sealing cover is provided on the liquid filling port;

[0126] A drain valve is provided at the bottom of the cleaning liquid storage bottle 51, and the drain valve is connected to the cleaning pipe 52;

[0127] A liquid level indicator is arranged in the cleaning liquid storage bottle 51. The liquid level indicator is a float structure and displays the liquid level outside the bottle wall through magnetic coupling.

[0128] Further, in the above technical solution, the injection pump 53 is a manual propulsion structure, including a propeller body, a propulsion rod and a scale display window;

[0129] The propeller body is connected to the cleaning pipe 52 and has a piston inside;

[0130] The propulsion rod is connected to the piston, and a rack is provided on the propulsion rod to cooperate with a ratchet mechanism on the propulsion body;

[0131] The scale display window is arranged on the side of the thruster body and is used to display the injection volume;

[0132] There is also a quick retraction button on the thruster body to unlock the ratchet mechanism;

[0133] The injection pump 53 is also equipped with a pressure limiting valve to prevent the injection pressure from being too high.

[0134] Furthermore, in the above technical solution, the device further includes a fixing assembly 12, which is arranged on one side of the fixing base 10 and is used to fix the entire device on the bed guardrail;

[0135] The fixing assembly 12 includes a fixing seat, a clamping arm and a locking mechanism 23;

[0136] The fixing seat is welded to one side of the fixing base 10, and a vertical slide groove is provided on the fixing seat, and the clamping arm is slidably connected in the vertical slide groove;

[0137] The inner end of the clamping arm is provided with an anti-skid pad, which is made of medical-grade silicone material and has anti-skid patterns on the surface;

[0138] The locking mechanism 23 comprises a locking bolt which passes through the fixing seat and is threadedly connected to the clamping arm.

[0139] The body fluid drainage device of the present invention is mainly composed of a fixed base 10, a support column 20, an operating platform 30, a drainage component 40 and a cleaning component 50. The structure, material, connection relationship and function of each part will be described in detail below.

[0140] 1.Fix the base:

[0141] The fixed base 10 is disc-shaped, with a diameter of about 50 cm and a thickness of about 5 cm, and is made of medical-grade ABS plastic material. The bottom is provided with 4 equally spaced lockable universal wheels, each with a diameter of about 7.5 cm. The universal wheels are made of high-strength nylon material, which can withstand a large weight while ensuring flexibility of movement. The locking mechanism of the wheel adopts a pedal-type design, which is convenient for medical staff to operate quickly. The bottom of the base is also covered with a layer of medical-grade silicone anti-skid pad, with a thickness of about 0.5 cm, which can effectively prevent the device from sliding when it is not locked.

[0142] The edge of the fixed base 10 is provided with an annular baffle extending upward, with a height of about 10 cm and made of the same material as the base. Eight through holes with a diameter of about 2 cm are evenly arranged on the baffle for hanging medical supplies or fixing various accessories. A ring tray 11 is provided on the top of the base, with an inner diameter of about 35 cm and a width of about 10 cm, which is connected to the base through four equidistantly distributed support rods. The support rods are made of stainless steel, with a diameter of about 1 cm and a height of about 15 cm. A layer of medical-grade silicone anti-skid mat with a thickness of about 0.3 cm is laid on the annular tray 11 to prevent medical equipment from slipping.

[0143] 2. Support columns:

[0144] The support column 20 adopts a telescopic structure design, including an outer sleeve 21 and an inner sleeve 22. The outer sleeve 21 has a diameter of about 5 cm, a wall thickness of 0.5 cm, a height of about 80 cm, and is made of medical grade stainless steel. The inner sleeve 22 has a diameter slightly smaller than the inner diameter of the outer sleeve 21 and can slide freely in the outer sleeve 21, with a maximum extension height of about 70 cm.

[0145] The locking mechanism 23 includes three equally spaced through holes on the outer sleeve 21 and a plurality of slots corresponding to the through holes on the inner sleeve 22. An elastic bayonet is provided in the through hole, one end of which is fixed to the inner wall of the outer sleeve 21 and the other end of which can be inserted into the slot of the inner sleeve 22. An unlocking button corresponding to the elastic bayonet is also provided on the outer sleeve 21 and connected to the outer sleeve 21 through a spring. This design allows the support column 20 to be adjusted in height as needed to accommodate medical staff of different heights.

[0146] 3.Operation platform:

[0147] The operating platform is rectangular, about 60 cm long, 40 cm wide, and 3 cm thick, and is made of medical-grade ABS plastic material. The upper surface of the platform is provided with multiple grooves for fixing various medical devices. The edge of the platform is provided with a guardrail 31 extending upward, about 10 cm high, and surrounded by a rectangle, with arc transitions at the four corners, which can effectively prevent the device from slipping.

[0148] A U-shaped handle is provided on one side of the operating platform, which is about 30 cm long and 15 cm high. It is made of stainless steel and fixed to the side of the platform at both ends by bolts. The handle is convenient for medical staff to push and adjust the position of the device. Reinforcement ribs are provided at the bottom of the platform, which are distributed radially and connected to the support column 20 at the center, thereby enhancing the load-bearing capacity and stability of the platform.

[0149] 4. Drainage components:

[0150] The drainage assembly includes a negative pressure drainage bottle 41, a drainage tube 42 and a negative pressure pump 43. The negative pressure drainage bottle 41 is made of transparent medical grade polycarbonate material, cylindrical, with a capacity of about 1000ml, and a scale line engraved on the outer wall with an accuracy of 10ml. A fixing seat matching the groove of the operating platform is provided at the bottom of the bottle, which can be firmly inserted into the groove.

[0151] A sealing cover 411 is provided on the top of the negative pressure drainage bottle 41, and three interfaces are provided on it, which are used to connect the drainage tube 42, the negative pressure pump hose and the overflow protection tube 45 respectively. The overflow protection tube 45 extends to the preset liquid level height in the bottle to prevent the liquid from being pumped into the negative pressure pump 43. A stirring device 412 is provided in the bottle, including a stirring shaft and a stirring blade. The top of the stirring shaft passes through the sealing cover 411 and is connected to the hand crank to facilitate stirring the liquid in the bottle. A drain valve is provided at the bottom of the bottle to facilitate emptying and cleaning the drainage bottle.

[0152] The drainage tube 42 is made of soft, transparent medical-grade silicone material and is covered with a protective layer on the outside. The tube wall is about 1 mm thick and the inner diameter is about 3 mm. There are several marking lines on the tube body, with an interval of 1 cm, to indicate the insertion depth. A roller-type flow regulating valve is provided in the middle section of the drainage tube 42 to adjust the flow by squeezing the pipe. The drainage needle is made of medical-grade stainless steel material, coated with an anticoagulant coating on the surface, connected to the drainage tube 42 by a thread, and can be replaced. The needle is about 10 cm long and about 1.5 mm in diameter. A side hole is provided at the tip to prevent the single opening from being blocked and causing poor drainage.

[0153] The negative pressure pump 43 is a manual vacuum pump, including a transparent pump body, a piston and a one-way valve. A scale line is provided inside the pump body with an accuracy of 5ml. A sealing ring is provided between the piston and the pump body, and the piston rod extends outside the pump body and is connected to the handle. The one-way valve is installed at the air inlet and outlet of the pump body to control the flow direction of the gas. The negative pressure pump 43 is also equipped with a pressure gauge with a range of 0-100kPa for monitoring the size of the negative pressure.

[0154] 5. Cleaning components:

[0155] The cleaning assembly 50 includes a cleaning liquid storage bottle 51, a cleaning tube 52 and an injection pump 53. The cleaning liquid storage bottle 51 is made of transparent medical grade polycarbonate material, is cylindrical, has a capacity of about 500 ml, and has scale lines engraved on the outer wall with an accuracy of 5 ml. A fixing seat matching the groove of the operating platform is provided at the bottom of the bottle, which can be firmly inserted into the groove.

[0156] The top of the cleaning liquid storage bottle 51 is provided with a liquid filling port and a sealing cover. The bottom of the bottle is provided with a drain valve connected to the cleaning pipe 52. A float type liquid level indicator is provided in the bottle, which displays the liquid level outside the bottle wall through magnetic coupling, so that medical staff can know the remaining amount of cleaning liquid at any time.

[0157] The cleaning tube 52 is made of the same material as the drainage tube 42, one end of which is connected to the bottom of the cleaning liquid storage bottle 51, and the other end is connected to the middle section of the drainage tube 42 through a three-way joint. The injection pump 53 is a manual propulsion structure, including a propeller body, a propeller rod and a scale display window. The propeller body is connected to the cleaning tube 52, and a piston is provided inside. The propeller rod is provided with a rack, which cooperates with the ratchet mechanism on the propeller body to ensure accurate control of the injection process. The scale display window is arranged on the side of the propeller body with an accuracy of 0.1ml, which is used to display the injection volume. A quick retraction button is also provided on the propeller body to release the lock of the ratchet mechanism. The injection pump 53 is equipped with a pressure limiting valve to prevent excessive injection pressure from causing discomfort to the patient.

[0158] 6. Fixing components:

[0159] The fixing assembly 12 is arranged on one side of the fixing base 10, and is used to fix the entire device on the bed guardrail. The fixing assembly 12 includes a fixing base, a clamping arm and a locking mechanism 23. The fixing base is made of stainless steel and connected to the fixing base 10 by welding. A vertical slide groove is provided on the fixing base, which is about 20 cm long and about 3 cm wide. The clamping arm is made of high-strength engineering plastic and can slide freely in the vertical slide groove to adapt to bed guardrails of different heights.

[0160] The inner end of the clamping arm is provided with an anti-skid pad, which is made of medical grade silicone material, with a thickness of about 0.5 cm, and an anti-skid pattern is provided on the surface to increase the friction. The locking mechanism 23 includes a locking bolt with a diameter of about 1 cm, which passes through the fixing seat and is threadedly connected to the clamping arm. By rotating the locking bolt, the clamping arm can be firmly fixed in the desired position.

[0161] Directions:

[0162] 1. Push the device to the bedside and lock the universal wheels.

[0163] 2. Adjust the height of the supporting columns so that the operating platform is at a suitable working height.

[0164] 3. Use the fixing assembly to secure the device to the bed rail.

[0165] 4. Prepare the negative pressure drainage bottle and cleaning fluid storage bottle, and install them into the corresponding grooves on the operating platform respectively.

[0166] 5. Connect the drainage tube, negative pressure pump and cleaning tube.

[0167] 6. Select a suitable drainage needle and connect it to the drainage tube.

[0168] 7. Under the guidance of the doctor, insert the drainage needle into the part of the patient's body that requires drainage.

[0169] 8. Use a negative pressure pump to create appropriate negative pressure and start the drainage process.

[0170] 9. Adjust the drainage speed through the flow regulating valve.

[0171] 10. Regularly observe the amount and properties of the liquid in the negative pressure drainage bottle.

[0172] 11. If necessary, use the cleaning assembly to flush the drainage tubing.

[0173] 12. After drainage is completed, carefully remove the drainage needle and dispose of the used equipment according to medical waste disposal regulations.

[0174] 13. Empty and clean the negative pressure drainage bottle and cleaning fluid storage bottle.

[0175] 14. Disinfect the entire device and prepare for next use.

[0176] The internal fluid drainage device of the present invention is reasonably designed and easy to operate, and can effectively assist medical staff in draining the internal fluid, thereby improving work efficiency and patient comfort.

[0177] Embodiment 2:

[0178] In the intensive care unit of a tertiary hospital, a 72-year-old male patient had severe pneumonia and pleural effusion and needed pleural drainage treatment. The medical staff decided to use a new type of internal effusion drainage device to complete this operation. The device has the following specific parameters and features:

[0179] The fixed base is made of medical-grade ABS material with a diameter of 60 cm and a thickness of 3 cm. Four lockable universal wheels with a wheel diameter of 7.5 cm are installed at the bottom. A 5 cm high annular baffle is provided on the edge of the base, and 12 through holes with a diameter of 2 cm are evenly distributed on the baffle. A ring tray with an outer diameter of 50 cm and an inner diameter of 40 cm is connected to the top of the base through 6 10 cm high stainless steel support rods for placing medical devices. The surface of the tray is covered with a 2 mm thick medical-grade silicone anti-skid mat.

[0180] The support column is made of aluminum alloy, with an outer sleeve diameter of 5 cm, a wall thickness of 3 mm and a height of 80 cm. The inner sleeve has a diameter of 4.5 cm, a wall thickness of 2.5 mm and a height of 75 cm. A locking mechanism is provided between the inner and outer sleeves, including 4 through holes evenly distributed on the outer sleeve and 12 corresponding slots on the inner sleeve. A stainless steel elastic bayonet with a diameter of 5 mm is installed in each through hole. Four unlocking buttons corresponding to the bayonet are also installed on the outer sleeve, and the buttons are connected to the outer sleeve through compression springs. The support column can be adjusted in height between 105 cm and 180 cm, with each adjustment interval of 5 cm.

[0181] The operating platform is made of medical-grade PP material, 80 cm long, 60 cm wide and 2 cm thick. There is a 10 cm high guardrail on the edge of the platform, and the four corners of the guardrail are transitioned with a 3 cm radius arc. A U-shaped handle is installed on one side of the platform. The handle is made of stainless steel, with a diameter of 2 cm and a length of 40 cm. It is fixed to the side of the platform by 4 M6 bolts. There are 8 radially distributed reinforcement ribs at the bottom of the platform, each of which is 30 cm long, 3 cm wide and 0.5 cm thick. There are 4 circular grooves with a diameter of 10 cm on the upper surface of the platform for fixing drainage bottles and storage bottles.

[0182] The negative pressure drainage bottle is made of transparent polycarbonate material, cylindrical, with a capacity of 2000 ml, an outer diameter of 12 cm and a height of 30 cm. There is a scale line engraved every 50 ml on the outer wall, and the scale line is made by laser etching. There is a circular fixing seat with a diameter of 9.5 cm at the bottom of the bottle, which can be inserted into the groove of the operating platform. There is a removable sealing cover on the top of the bottle, with three interfaces on the cover: a drainage tube interface with a diameter of 8 mm, a negative pressure pump hose interface with a diameter of 6 mm, and an overflow protection tube interface with a diameter of 4 mm. The overflow protection tube is 25 cm long and extends to 5 cm from the bottom of the bottle. A stirring device is provided in the drainage bottle, including a stainless steel stirring shaft with a diameter of 5 mm and 4 PP stirring blades with a length of 3 cm and a width of 1 cm. The top of the stirring shaft passes through the sealing cover and is connected to a hand crank with a diameter of 5 cm. A stainless steel ball valve with an inner diameter of 1 cm is installed at the bottom of the drainage bottle as a drain valve.

[0183] The drainage tube is made of medical-grade PVC material, with a total length of 150 cm, an outer diameter of 6 mm, and an inner diameter of 4 mm. The outside of the drainage tube is covered with a 1 mm thick silicone protective layer. A 2 mm wide black marking line is set on the tube body every 10 cm to indicate the insertion depth. A roller flow control valve is installed in the middle section of the drainage tube. The control valve is made of ABS material and the roller diameter is 2 cm. The drainage needle is made of medical stainless steel, with a length of 10 cm, an outer diameter of 3 mm, an inner diameter of 2 mm, and a heparin anticoagulant coating on the surface. The needle is connected to the drainage tube through an M6 specification thread. Six side holes with a diameter of 1 mm are evenly distributed within 10 cm at the end of the drainage tube.

[0184] The negative pressure pump is a manual vacuum pump. The pump body is made of transparent polycarbonate material, with an inner diameter of 5 cm, a length of 20 cm, and a wall thickness of 3 mm. There is a scale line engraved every 10 ml on the inner wall of the pump body. The piston is made of medical-grade silicone material, with a diameter of 4.9 cm and a thickness of 2 cm. There are two sealing rings between the piston rod and the pump body. The piston rod is made of stainless steel, with a diameter of 5 mm and a length of 25 cm. A 4 cm diameter ABS handle is connected to the end. A one-way valve with a diameter of 6 mm is installed at the air inlet and outlet of the pump body. The negative pressure pump is also equipped with a pressure gauge with a range of 0-100kPa and an accuracy of 1kPa.

[0185] The cleaning liquid storage bottle is made of transparent polycarbonate material, cylindrical, with a capacity of 1000 ml, an outer diameter of 10 cm and a height of 20 cm. There is a scale line engraved every 25 ml on the outer wall. There is a circular fixing seat with a diameter of 9.5 cm at the bottom of the bottle, which can be stuck into the groove of the operating platform. There is a filling port with a diameter of 3 cm on the top of the bottle, equipped with a threaded sealing cover. A stainless steel ball valve with an inner diameter of 5 mm is installed at the bottom of the bottle as a drain valve. There is a float-type liquid level indicator in the storage bottle. The float has a diameter of 2 cm and is made of polypropylene material. A strong neodymium iron boron magnet with a diameter of 1 cm is installed inside. There is a magnetic indicator scale with a scale of 0-1000 ml on the outside of the bottle wall.

[0186] The injection pump adopts a manual propulsion structure. The main body of the pusher is made of ABS material, 15 cm long and 3 cm in diameter. There is a silicone piston with a diameter of 2.8 cm inside. The push rod is made of stainless steel, with a diameter of 5 mm and a length of 20 cm. One end is connected to the piston and the other end is equipped with a handle with a diameter of 3 cm. A tooth is engraved every 1 cm on the push rod, which cooperates with the stainless steel ratchet mechanism on the main body of the pusher. A 10 cm long and 1 cm wide scale display window is provided on the side of the main body of the pusher. The scale range is 0-50 ml and the minimum scale is 0.5 ml. The quick retract button is located at the tail of the main body of the pusher and has a diameter of 1 cm. A spring-loaded pressure limiting valve with an opening pressure of 300 kPa is installed at the outlet of the injection pump.

[0187] The fixing seat of the fixing assembly is made of stainless steel, 10 cm long, 5 cm wide, and 2 cm thick, and is welded to one side of the fixing base by 4 M8 bolts. A vertical slide groove with a width of 3 cm and a length of 8 cm is opened on the fixing seat. The clamping arm is made of aluminum alloy material, 15 cm long, 2.5 cm wide, and 1 cm thick, and can slide up and down in the slide groove. The inner end of the clamping arm is covered with a 5 mm thick medical grade silicone anti-skid pad, and the surface of the anti-skid pad is provided with diamond anti-skid patterns. The locking mechanism uses an M10 specification, 12 cm long stainless steel bolt, which passes through the fixing seat and is threadedly connected to the clamping arm.

[0188] In actual operation, medical staff first push the device to the bedside, adjust the height of the support column to 130 cm, so that the operating platform is flush with the bed surface. Then use the fixing components to firmly fix the device to the bed guardrail. Then, medical staff place necessary medical equipment such as disinfectants and puncture kits in the ring tray.

[0189] The doctor determines the puncture location based on the patient's chest CT image. After local anesthesia, the doctor uses the drainage needle to puncture into the chest cavity. After the puncture is successful, the drainage tube is connected to the drainage needle and the insertion depth is adjusted to 10 cm (refer to the marking line on the drainage tube). The doctor slowly withdraws the guide needle and retains the outer sleeve as a drainage channel.

[0190] 200 ml of saline solution is pre-injected into the negative pressure drainage bottle as a water seal. The medical staff connects the other end of the drainage tube to the interface on the top of the negative pressure drainage bottle to ensure a good seal. Then operate the manual negative pressure pump and slowly pump air until the pressure gauge shows -2kPa. At this time, it can be observed that the pleural effusion begins to flow into the negative pressure drainage bottle along the drainage tube.

[0191] Medical staff closely monitor the drainage situation and record the amount and properties of the drainage fluid every hour. During the drainage process, if the drainage tube shows signs of blockage, it can be flushed with the cleaning component. First, close the flow control valve, then operate the injection pump to slowly inject 20 ml of sterile saline into the drainage tube. After the injection is completed, reopen the flow control valve to observe whether the drainage is restored.

[0192] In the early stage of drainage, the stirring device is turned every 2 hours to prevent fibrin deposition in the drainage fluid. If the liquid in the negative pressure drainage bottle is about to reach the 1500 ml mark, the medical staff will close the flow regulating valve, open the drain valve to drain the drainage fluid, and record the total amount. After emptying, re-inject 200 ml of saline as a water seal and continue the drainage process.

[0193] After 24 hours of continuous drainage, the patient's pleural effusion was basically drained. After evaluating the patient's condition, the doctor decided to remove the drainage tube. First, close the flow regulating valve, then slowly pull out the drainage tube, while the assistant applies pressure at the tube removal site. After the tube is removed, the puncture site is disinfected and covered with a sterile dressing.

[0194] Finally, the medical staff emptied and cleaned the negative pressure drainage bottle and the cleaning fluid storage bottle, and thoroughly disinfected the entire device. The support column was adjusted to the lowest height, the fixing components were released, and the device was pushed back to the equipment storage area.

[0195] During the entire drainage process, the device exhibits the following advantages:

[0196] 1. Stable structure: The fixed base and lockable universal wheels provide good stability to prevent the device from tipping over during use.

[0197] 2. Height adjustable: The telescopic support column can be adjusted according to different bed heights and operator heights, improving operating comfort.

[0198] 3. Easy to observe: The transparent negative pressure drainage bottle and clear scale lines enable medical staff to accurately monitor the amount and properties of drainage fluid.

[0199] 4. Safe and reliable: Designs such as overflow protection pipe and pressure limiting valve effectively prevent accidents such as excessive negative pressure and backflow.

[0200] 5. Flexible operation: The manual negative pressure pump and flow regulating valve enable medical staff to accurately control the negative pressure and drainage speed.

[0201] 6. Anti-blocking design: Multiple side holes and cleaning components on the drainage tube effectively reduce the risk of pipeline blockage.

[0202] 7. Easy to clean: The design of the drain valve makes emptying and cleaning the drainage bottle simple and quick.

[0203] 8. Functional integration: It integrates drainage, cleaning, negative pressure control and other functions, reducing the frequency of instrument conversion during operation.

[0204] 9. Humanized design: The ring tray provides storage space for medical devices, the U-shaped handle is convenient for pushing, and the guardrail increases the safety of operation.

[0205] 10. Strong adaptability: The fixing components enable the device to be firmly installed on different types of beds.

[0206] This embodiment demonstrates the specific operation process and advantages of the internal fluid drainage device in clinical applications, providing medical staff with a safe, efficient and convenient drainage solution. Through the careful design of various components, the device can meet different conditions and operation requirements, effectively improving the treatment effect of pleural effusion drainage and patient comfort.

[0207] Specifically, the principle of the present invention is:

[0208] 1. Overall structural design principle:

[0209] The device adopts a modular design, which organically combines the fixed base, support columns, operating platform, drainage components and cleaning components. This design follows the modular principle in engineering, which not only ensures the independence of the functions of each part, but also realizes the synergy of the overall function. The fixed base adopts a disc-shaped design, which conforms to the principle of mechanical stability and provides good support. The telescopic structure of the support column is based on the sleeve principle and realizes height adjustment. The rectangular design of the operating platform maximizes the effective use area and facilitates the arrangement of various components;

[0210] 2. Negative pressure drainage principle:

[0211] The core of the drainage component is the principle of negative pressure drainage. A negative pressure environment is created in the system through a negative pressure pump, and the pressure difference principle is used to promote the flow of effusion from the body cavity to the drainage bottle. Negative pressure drainage not only accelerates the discharge of effusion, but also promotes tissue adhesion and is conducive to wound healing. The negative pressure can be monitored and adjusted through a pressure gauge to ensure the controllability of the drainage effect;

[0212] 3. Principles of fluid mechanics:

[0213] The design of the drainage tube fully considers the principles of fluid mechanics. The selection of the tube diameter balances the flow rate and resistance. The design of multiple side holes is based on the Bernoulli principle, which reduces the risk of single-point blockage. The flow control valve uses the variable cross-section principle to control the flow and achieves precise regulation;

[0214] 4. Cleaning system design principle:

[0215] The design of the cleaning component is based on the principle of liquid flushing. The injection of cleaning liquid is controlled by the injection pump, and the impact force and dissolution effect of the liquid are used to remove the sediment in the pipeline. The design of the three-way joint is based on the principle of fluid distribution to ensure that the cleaning liquid can effectively reach the area to be cleaned.

Claims

1. A device for draining fluid from a body, characterized in that: include: Fixed base, support column, operating platform, drainage assembly and cleaning assembly; The fixed base is in the shape of a disc, and is provided with an anti-skid pad and lockable universal wheels at the bottom; The support column is vertically fixed to the center of the fixed base. The support column is a telescopic structure, including an outer sleeve and an inner sleeve. The outer sleeve is fixed to the fixed base, and the inner sleeve is slidably inserted into the outer sleeve. A locking mechanism is provided between the inner sleeve and the outer sleeve. The operating platform is fixedly installed on the top of the supporting column, the operating platform is rectangular, and a groove is provided on the upper surface; The drainage assembly is installed on the operating platform and includes a negative pressure drainage bottle, a drainage tube and a negative pressure pump; The negative pressure drainage bottle is made of transparent material and is cylindrical in shape. The outer wall is engraved with scale lines and the bottom is provided with a fixing seat, which is inserted into the groove of the operating platform. One end of the drainage tube is connected to the top of the negative pressure drainage bottle, and the other end is provided with a drainage needle; The negative pressure pump is connected to the top of the negative pressure drainage bottle through a hose; The cleaning assembly is installed on the operating platform and includes a cleaning liquid storage bottle, a cleaning tube and an injection pump; The cleaning liquid storage bottle is made of transparent material and is cylindrical in shape. The outer wall is engraved with scale lines and the bottom is provided with a fixing seat, which is inserted into the groove of the operating platform. One end of the cleaning pipe is connected to the bottom of the cleaning liquid storage bottle, and the other end is connected to the middle section of the drainage pipe through a three-way joint; The injection pump is connected to the cleaning pipe and is used to control the injection of the cleaning liquid.

2. A device for draining fluid accumulation in the body according to claim 1, characterized in that: The edge of the fixed base is provided with an annular baffle extending upward, and a plurality of through holes are evenly arranged on the annular baffle; A ring-shaped tray for placing medical equipment is provided on the top of the fixed base, and the ring-shaped tray is connected to the fixed base via a plurality of support rods; The annular tray is provided with an anti-skid pad to prevent the medical device from slipping.

3. A device for draining body fluid accumulation according to claim 2, characterized in that: The locking mechanism of the support column includes a plurality of through holes arranged on the outer sleeve and a plurality of slots arranged on the inner sleeve corresponding to the through holes; An elastic bayonet is provided in the through hole, one end of which is fixed to the inner wall of the outer sleeve, and the other end of which can extend into the slot of the inner sleeve; The outer sleeve is also provided with an unlocking button corresponding to the elastic bayonet, and the unlocking button is connected to the outer sleeve through a spring.

4. A device for draining body fluid accumulation according to claim 3, characterized in that: The edge of the operating platform is provided with a guardrail extending upward, the guardrail is surrounded by a rectangular shape, and the four corners are arc transitions; A handle is provided on one side of the operating platform. The handle is a U-shaped structure, and both ends of the handle are fixed to the side of the operating platform by bolts; The bottom of the operating platform is provided with reinforcing ribs, which are distributed radially and connected to the supporting columns at the center.

5. The device for draining body fluid accumulation according to claim 4, characterized in that: The top of the negative pressure drainage bottle is provided with a sealing cover, and the sealing cover is provided with four interfaces, which are respectively used to connect the drainage tube, the negative pressure pump hose, the overflow protection tube and the water seal device; The water seal device adopts the curved water cover principle of the sewer, including a U-shaped pipe and scale marks; One end of the U-shaped tube is connected to the interface on the sealing cover, and the other end extends to the inside of the negative pressure drainage bottle; An appropriate amount of disinfectant is pre-injected into the U-shaped tube to form a water seal; The outer wall of the U-shaped tube is provided with scale marks for observing water level changes; The overflow protection tube extends to a preset liquid level height inside the negative pressure drainage bottle; The negative pressure drainage bottle is provided with a stirring device, including a stirring shaft and a stirring blade, and the top end of the stirring shaft passes through the sealing cover and is connected to the hand crank; A drain valve is provided at the bottom of the negative pressure drainage bottle to facilitate emptying and cleaning of the drainage bottle.

6. The device for draining body fluid accumulation according to claim 5, characterized in that: The drainage tube is made of soft transparent material and is covered with a protective layer on the outside; The drainage tube is provided with a plurality of marking lines for indicating the insertion depth; A flow regulating valve is provided in the middle section of the drainage tube. The flow regulating valve is a roller-type structure and the flow is adjusted by squeezing the drainage tube. The drainage needle is of replaceable design and is connected to the drainage tube via a thread, and the surface of the drainage needle is coated with an anticoagulant coating; The drainage tube is also provided with a plurality of side holes to prevent a single opening from being blocked and causing poor drainage.

7. The device for draining body fluid accumulation according to claim 6, characterized in that: The negative pressure pump is a manual air pump, comprising a pump body, a piston and a one-way valve; The pump body is made of transparent material and has scale lines inside; A sealing ring is provided between the piston and the pump body, and the piston rod extends outside the pump body and is connected to the handle; The one-way valve is installed at the air inlet and outlet of the pump body to control the flow direction of the gas; The negative pressure pump is also equipped with a pressure gauge for monitoring the negative pressure.

8. The device for draining body fluid accumulation according to claim 7, characterized in that: The top of the cleaning liquid storage bottle is provided with a liquid filling port, and a sealing cover is provided on the liquid filling port; A drain valve is provided at the bottom of the cleaning liquid storage bottle, and the drain valve is connected to the cleaning pipe; A liquid level indicator is arranged in the cleaning liquid storage bottle. The liquid level indicator is a float structure and displays the liquid level outside the bottle wall through magnetic coupling.

9. The device for draining body fluid accumulation according to claim 8, characterized in that: The injection pump is a manual propulsion structure, including a propeller body, a propulsion rod and a scale display window; The thruster body is connected to the cleaning pipe and has a piston inside; The propulsion rod is connected to the piston, and a rack is provided on the propulsion rod to cooperate with a ratchet mechanism on the propulsion body; The scale display window is arranged on the side of the thruster body and is used to display the injection volume; The thruster body is also provided with a quick retraction button for releasing the lock of the ratchet mechanism; The injection pump is also equipped with a pressure limiting valve to prevent the injection pressure from being too high.

10. The device for draining body fluid accumulation according to claim 9, characterized in that: The device also includes a fixing component, which is arranged on one side of the fixing base and is used to fix the entire device on the bed guardrail; The fixing assembly includes a fixing seat, a clamping arm and a locking mechanism; The fixing seat is welded to one side of the fixing base, a vertical slide groove is provided on the fixing seat, and the clamping arm is slidably connected in the vertical slide groove; The inner end of the clamping arm is provided with an anti-skid pad, which is made of medical grade silicone material and has anti-skid patterns on the surface; The locking mechanism comprises a locking bolt which penetrates through the fixing seat and is threadedly connected with the clamping arm.

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