Surgical flushing device for general surgery department

Abstract

The invention discloses an operation flushing device for the general surgery department, and relates to the technical field of medical instruments. The flushing mechanism is arranged on the collecting box; the liquid pumping mechanism is arranged on the collecting box and is parallel to the flushing mechanism, and the liquid pumping mechanism and the end of the flushing mechanism are coaxially arranged so that flushing and sucking integrated operation can be achieved. By means of the flushing device, the problems that an existing flushing device is low in flushing efficiency, not thorough in accumulated liquid cleaning, complex in operation, capable of achieving liquid backflow pollution and the like are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a general surgery flushing device. Background Art

[0002] General surgery irrigation devices are used to irrigate and clear fluid accumulation during surgery to ensure cleanliness of the surgical site and reduce the risk of infection. Irrigation and fluid collection are critical steps in general surgery, such as abdominal surgery, wound debridement, or treatment of infected sites, directly impacting surgical outcomes and patient recovery. Traditional irrigation methods typically rely on manual syringes or simple irrigation tools to manually apply irrigation fluid (such as saline) to the surgical site, followed by aspiration of the accumulated fluid using a separate suction device. However, these methods have several drawbacks: First, manual irrigation is inefficient, and precise control of the flow and pressure of the irrigation fluid can be difficult, potentially leading to uneven irrigation or excessive tissue impact. Second, fluid collection is incompletely cleared, especially during deep-lying surgery, where residual fluid is difficult to completely aspirate, increasing the risk of postoperative infection or abscess formation. Furthermore, traditional methods often require medical staff to frequently switch between irrigation and aspiration devices, which complicates the procedure, prolongs the surgical procedure, and increases the risk of cross-infection during surgery.

[0003] In recent years, some improved flushing devices have appeared on the market, such as flushers with simple liquid suction functions, but these devices still have obvious defects. On the one hand, most devices do not realize the integrated design of flushing and suction. The flushing and suction operations need to be performed separately, lacking synergy. On the other hand, existing devices generally lack an effective one-way flow control mechanism, and flushing fluid or accumulated fluid is prone to backflow, leading to contamination of the surgical site. In addition, for the cleaning of residual accumulated fluid, existing devices usually rely solely on suction, and cannot achieve secondary adsorption and discharge, resulting in low cleaning efficiency. At the same time, existing devices have limited adjustment capabilities when adapting to different surgical depths and locations, lack operational flexibility, and are difficult to meet the personalized needs of complex surgical scenarios. Summary of the Invention

[0004] In response to the above-mentioned problems, the present invention aims to provide a general surgery flushing device that effectively solves the existing problems of low flushing efficiency, incomplete cleaning of accumulated fluid, complicated operation, liquid reflux contamination, etc., and provides strong technical support for the cleaning operation of general surgery.

[0005] The main ideas of the technical solution adopted by the present invention are: first, by adopting a coaxial arrangement of the flushing mechanism and the liquid extraction mechanism, the integrated operation of flushing and fluid absorption is realized, which avoids frequent switching of equipment during surgery, simplifies the operation process, and improves surgical efficiency; second, a one-way valve control and elastic drive mechanism are introduced, and the first one-way valve and the second one-way valve are used to control the one-way flow of flushing fluid and accumulated fluid respectively, and the mechanical deformation of the first elastic drive and the second elastic drive are combined to drive the valve to open and close, so as to prevent liquid backflow and ensure a sterile environment at the surgical site; third, a collaborative structure of absorbent cotton and valve flap is designed, and the residual accumulated fluid is absorbed by the absorbent cotton and squeezed out by the valve flap, so as to realize secondary cleaning of the accumulated fluid and further improve the cleaning efficiency; finally, a rotary regulator is provided to adjust the extension length of the flushing pipe joint to meet the personalized needs of different surgical depths and enhance the operational flexibility of the device.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A general surgical flushing device is characterized by a collection box comprising: a flushing mechanism arranged on the collection box; a liquid extraction mechanism arranged on the collection box and parallel to the flushing mechanism, and the liquid extraction mechanism and the end of the flushing mechanism are coaxially arranged to realize integrated flushing and suction operations.

[0007] Considering the need to achieve seamless integration between flushing and fluid aspiration to avoid frequent switching of equipment during surgery, the above structure was further refined based on this technical idea.

[0008] In order to improve the overall compactness and operational efficiency of the device, the flushing mechanism further includes: a flushing pump, which is arranged at the bottom of the collection box; a flushing hose, which is vertically arranged on the flushing pump; a flushing pipe joint, which is sleeved on the end of the flushing hose, and a one-way flushing component is arranged at the tail end, and the outer wall of the head end is threadedly connected with a rotary regulator for adjusting the extension length of the flushing mechanism.

[0009] During the flushing process, in order to ensure the unidirectional flow of the flushing liquid and prevent backflow contamination, further: the one-way flushing component includes: a first elastic control part, the first elastic control part is connected to the side wall of the connecting ring at the end of the flushing pipe joint; a first one-way valve, which is rotatably connected to the inner wall of the connecting ring, and the first one-way valve is flexibly connected to the first elastic control part.

[0010] In order to achieve precise opening and closing control of the first one-way valve, further: the first elastic control part includes: a first elastic adjustment part, elastically connected to the side wall of the connecting ring; a first connecting rope, the rope body of which passes through the side wall of the connecting ring, and one end of the first connecting rope is connected to the first elastic adjustment part, and the other end is connected to the first one-way valve.

[0011] In order to efficiently absorb the accumulated fluid and coordinate with the flushing operation, further: the liquid extraction mechanism includes: a liquid extraction pump, which is arranged at the bottom of the collection box and is parallel to the flushing pump; a liquid extraction hose, which is vertically connected to the liquid extraction pump; a liquid extraction joint, which is arranged at the end of the liquid extraction hose, and the liquid extraction joint is sleeved on the outer wall of the flushing pipe joint.

[0012] In order to protect the tissues at the surgical site and filter out impurities in the accumulated fluid, further: an anti-blocking protective sleeve is provided at the tail end of the liquid extraction connector, one annular surface of the anti-blocking protective sleeve is connected to the tail end of the liquid extraction connector, and the other annular surface forms a "return" structure around the connector end of the flush pipe connector, and multiple protective holes are provided on the inner and outer layers of the anti-blocking protective sleeve.

[0013] In order to prevent the backflow of accumulated fluid and ensure the sterility of the suction operation, multiple groups of anti-backflow components are further arranged circumferentially at the end of the liquid extraction connector. The anti-backflow components include: a second elastic control part, which is arranged on the inner wall of the end of the liquid extraction connector; a second one-way valve, which is rotatably connected to the end of the liquid extraction connector and flexibly connected to the second elastic control part.

[0014] Furthermore, the second elastic control member includes: a second elastic adjusting member, elastically connected to the inner wall of the end of the liquid extraction connector; a lever, the middle part of which is rotatably connected to the inner wall of the end of the liquid extraction connector, and one end of which is connected to the second elastic adjusting member; a second connecting rope, one end of which is connected to the other end of the lever, and the other end of which is flexibly connected to the second one-way valve.

[0015] In order to achieve secondary cleaning of residual accumulated liquid, multiple valve flaps are rotatably arranged on the inner wall of the liquid extraction joint, a groove is provided at the end of the flushing pipe joint, absorbent cotton is embedded in the front end of the groove, and the valve flap is used to squeeze the absorbent cotton.

[0016] Furthermore, a drainage channel is provided at the rear end of the groove, and the drainage channel is communicated with the inner cavity of the liquid extraction joint.

[0017] The beneficial effects of the present invention are: 1. Realize integrated flushing and suction operations to improve surgical efficiency: Through the coaxial arrangement of the flushing mechanism and the suction mechanism, combined with the coordinated design of the flushing pipe joint and the suction joint, the present invention realizes the seamless connection between flushing liquid spraying and accumulated fluid suction, avoids frequent switching of equipment during surgery, shortens operation time, and significantly improves surgical efficiency. It is particularly suitable for complex scenarios such as abdominal surgery and trauma debridement.

[0018] 2. Effectively prevent fluid backflow and reduce infection risk: The first and second one-way valves are used, and through the mechanical control of the first and second elastic actuators, the one-way flow of flushing fluid and accumulated fluid is ensured, preventing backflow contamination and reducing the intraoperative infection rate. At the same time, all components are made of medical-grade materials and combined with antibacterial design (such as the nano-silver coating of the absorbent cotton) to further ensure the sterile environment of the surgical site.

[0019] 3. Improve the degree of fluid cleaning and reduce postoperative complications: Through the synergistic effect of absorbent cotton and valve disc, the residual fluid is secondary adsorbed and squeezed out, which improves the efficiency of fluid cleaning and effectively avoids postoperative infection or abscess formation caused by fluid retention; the double-layer filtration structure of the anti-blocking protective sleeve further reduces the risk of tissue fragment blockage and extends the service life of the device.

[0020] 4. Improved the safety and efficiency of general surgery flushing devices: The "U"-shaped structure of the anti-blocking protective sleeve forms a buffer space to prevent abdominal tissue from blocking the flushing port, reducing the risk of tissue damage and reducing pulling force; the inner and outer protective holes are staggered to filter tissue fragments, ensure uniform suction distribution, and avoid local blockage; at the same time, the anti-blocking protective sleeve improves the efficiency of fluid absorption and reduces the equipment failure rate caused by blockage, providing safer and more efficient fluid cleaning support for deep surgery (such as abdominal cavity washing), significantly reducing the risk of postoperative complications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 perspective drawing; Figure 3 Schematic cross-sectional view of the flushing pipe joint and the liquid extraction joint of the present invention; Figure 4 It is a cross-sectional schematic diagram of the one-way flushing assembly of the present invention in a closed state; Figure 5 It is a cross-sectional schematic diagram of the one-way flushing assembly of the present invention in the open state; Figure 6 Schematic cross-sectional view of the anti-backflow assembly of the present invention in a closed state; Figure 7 Schematic cross-sectional view of the anti-backflow assembly of the present invention in the open state; Figure 8 This is a cross-sectional schematic diagram of the secondary dipping of the effusion according to the present invention; Figure 9 This is a cross-sectional schematic diagram of the present invention for squeezing and dipping the accumulated fluid; Figure 10 A structural perspective view of the anti-backflow assembly of the present invention in an open state; Figure 11 A perspective view of the structure of the second dipping effusion of the present invention; Figure 12 A perspective view of the structure of the present invention for squeezing and dipping the accumulated fluid; Figure 13 This is a schematic structural diagram of the anti-blocking protective cover of the present invention; Figure 14 The product of the present invention Figure 1 ; Figure 15The product of the present invention Figure 2 ; Figure 16 The product of the present invention Figure 3 ; Among them: 1. Collection box; 2. Flushing mechanism; 21. Flushing pump; 22. Flushing hose; 23. Flushing pipe connector; 231. Connecting ring; 232. Groove; 233. Absorbent cotton; 234. Drainage channel; 24. One-way flushing assembly; 241. First elastic control member; 2411. First elastic adjustment member; 2412. First connecting rope; 242. First one-way valve; 25. Rotary regulator; 3. Liquid extraction mechanism; 31. Liquid extraction pump; 32. Liquid extraction hose; 33. Liquid extraction connector; 331. Valve disc; 34. Anti-blocking protective cover; 341. Outer layer of anti-blocking protective cover; 342. Inner layer of anti-blocking protective cover; 35. Anti-backflow assembly; 351. Second elastic control member; 3511. Second elastic adjustment member; 3512. Lever; 3513. Second connecting rope; 352. Second one-way valve. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] The inventors' research found that traditional general surgery flushing devices are complicated to operate, with flushing and suction separated, requiring frequent equipment switching and low efficiency; the risk of liquid reflux is high, the accumulated fluid is not thoroughly cleaned, and residual fluid is prone to cause postoperative complications; the accumulated fluid is not thoroughly cleaned, and residual fluid is prone to cause postoperative complications.

[0024] Based on the above findings, the present application proposes a general surgery flushing device, which realizes integrated flushing and suction operations by coaxially arranging a flushing mechanism and a liquid extraction mechanism, simplifies the operating process, reduces equipment switching time, and improves surgical efficiency; by setting a one-way valve and an elastic driver, mechanical elasticity is used to control the opening and closing of the valve to ensure one-way flow of flushing fluid and accumulated fluid, prevent backflow contamination, and reduce the infection rate; by setting absorbent cotton and valve flaps, secondary adsorption and extrusion discharge of residual accumulated fluid are achieved, cleaning efficiency is improved, and postoperative complications are effectively reduced. Example 1

[0025] See Figures 1-16The present application discloses a general surgical flushing device: comprising a collection box 1, which is an integrally formed rectangular or cylindrical shell made of medical-grade antibacterial plastic (such as polypropylene or polycarbonate) with good sealing and corrosion resistance to ensure a sterile environment during surgery.

[0026] like Figure 1 The collection box 1 is divided into two layers. The bottom layer is designed with a mounting groove or threaded interface parallel to the short axis direction, which is used to fix the flushing mechanism 2 and the liquid extraction mechanism 3, so that the flushing mechanism 2 and the liquid extraction mechanism 3 can be firmly connected and maintain a coaxial setting, thereby realizing the integrated operation of the flushing and suction functions.

[0027] Preferably, the interior of the top layer of the collection box 1 is divided into two independent cavities by a partition along the long axis direction: a storage bin and a flushing liquid bin; the storage bin is located on one side of the collection box 1 and is designed as an open cavity or a cavity with a sealed cover, and two mounting holes are provided at the bottom of the storage bin.

[0028] Preferably, the flushing liquid reservoir is located on the other side of the collection box 1 and is a sealed cavity for storing flushing liquid (such as saline or antibacterial flushing solution). A liquid inlet is provided at the top of the flushing liquid reservoir, equipped with a one-way sealing cover to prevent liquid leakage and the ingress of external contaminants. A liquid inlet port is provided at the bottom of the flushing liquid reservoir, which is connected to the flushing pump 21 of the flushing mechanism 2 via a hose to ensure smooth delivery of the flushing liquid. A sewage outlet is provided on the side of the flushing liquid reservoir to facilitate the passage of the sewage pipe of the liquid extraction mechanism 3.

[0029] Preferably, the flushing mechanism 2 includes a flushing pump 21 , a flushing hose 22 , a flushing pipe joint 23 , a one-way flushing component 24 , and a rotary regulator 25 .

[0030] Preferably, the flush pump 21 is positioned parallel to the short side of the collection box 1 and fixed to the bottom of the collection box 1 via a mounting slot. It utilizes a medical-grade micro-centrifugal pump or peristaltic pump, characterized by low noise and stable flow. The inlet of the flush pump 21 is connected to the flushing liquid reservoir within the collection box 1 via a sealed conduit, and the outlet is connected to the flushing hose 22. The flush pump 21 is operated via an external control switch or foot switch, facilitating intraoperative adjustments and avoiding hand contact to maintain a sterile environment.

[0031] Preferably, the irrigation hose 22 is a slender, cylindrical, flexible tubular structure made of medical-grade silicone or polyurethane. The overall length of the irrigation hose 22 is 20-50 cm, allowing for moderate bending to accommodate the angles required for different surgical sites while maintaining sufficient rigidity to prevent excessive deformation or folding. The irrigation hose 22 is positioned perpendicular to the outlet of the flushing pump 21 at the bottom of the collection box 1. Its bottom end is tightly connected to the flushing pump 21 via a snap, thread, or medical adhesive to ensure a tight seal and prevent leakage of the irrigation fluid. The upper end is sleeved onto the flushing pipe connector 23, secured via a compression ring or threaded structure. The flushing pipe connector 23 is positioned parallel to the liquid extraction hose 32 of the extraction mechanism 3, maintaining the overall compactness of the device.

[0032] Preferably, the flushing pipe connector 23 is sleeved onto the end of the flushing hose 22. It is a hollow cylindrical structure made of medical stainless steel or high-strength plastic with good corrosion resistance and mechanical strength. A one-way flushing assembly 24 is provided at the tail end of the flushing pipe connector 23 to control the unidirectional flow of the flushing fluid; the outer wall of the head end is provided with an external thread, which is threadedly connected to the rotary regulator 25. The internal channel of the connector is designed to be streamlined to reduce liquid turbulence and ensure smooth output of the flushing fluid. The end of the flushing pipe connector 23 is also provided with a groove 232, and the end of the groove 232 is embedded with absorbent cotton 233 to absorb residual fluid from the surgical site and improve the cleaning effect.

[0033] like Figure 4 The one-way flushing assembly 24 includes a first elastic control member 241 and a first one-way valve 242. The first elastic control member 241 is connected to the sidewall of the connecting ring 231 at the end of the flushing pipe connector 23 and is responsible for driving the opening and closing of the first one-way valve 242 through elastic deformation. The first elastic control member 241 includes a first elastic adjustment member 2411 and a first connecting rope 2412. Its compact and efficient structural design ensures sensitive and reliable valve control.

[0034] Preferably, the first elastic adjustment member 2411 is elastically connected to the sidewall of the connecting ring 231 and consists of a first spring and multiple first springs. The first spring is a circular or curved thin sheet made of medical stainless steel or a highly elastic polymer (such as polyetheretherketone). Multiple first springs (typically 3-6) are evenly distributed along the circumference of the first spring. One end of the first spring is fixed to the edge of the first spring by welding or adhesive, and the other end is welded to the inner surface of the sidewall. The first spring is compressed by the pressure of the flushing fluid, driving the first spring to slightly deform toward the connecting ring 231, thereby adjusting the tension of the first connecting rope 2412.

[0035] Preferably, the first connecting rope 2412 is a high-strength, flexible string made of medical-grade nylon or polytetrafluoroethylene fiber, which is stretch-resistant and corrosion-resistant. One end of the first connecting rope 2412 is secured to the center of the first spring plate via a micro-buckle or adhesive. The other end passes through an L-shaped slot (approximately 0.5 mm wide) in the sidewall of the connecting ring 231 and connects to the first one-way valve 242. The L-shaped slot ensures a stable trajectory for the connecting rope, reducing friction and wear. When the first spring plate deforms under pressure, the first connecting rope 2412 relaxes, providing space for the first one-way valve 242 to open.

[0036] Preferably, the first one-way valve 242 is rotatably connected to the inner wall of the connecting ring 231. It is made of medical stainless steel or high-strength plastic and is a circular valve disc with a diameter slightly smaller than the inner diameter of the connecting ring 231. The valve disc is connected to the inner wall of the connecting ring 231 via a micro-hinge or a rotating shaft. The first one-way valve 242 is flexibly connected to the first elastic control member 241 via a first connecting rope 2412, the other end of which is fixed to the non-rotating shaft edge of the valve disc.

[0037] When the flushing pump 21 is activated, the pressure of the flushing fluid pushes the first spring of the first elastic adjustment member 2411 toward the connecting ring 231, compressing the first spring and loosening the first connecting rope 2412. The first one-way valve 242, under the impact of the flushing fluid flow, pivots outward about its hinge and opens, allowing the flushing fluid to spray toward the surgical site. When the flushing pump 21 is deactivated, the first spring returns to its original position, tightening the first connecting rope 2412. The first one-way valve 242, under the influence of the fluid pressure differential and its own gravity, closes about its hinge, tightly sealing the inner wall of the connecting ring 231 and preventing fluid backflow or the ingress of external contaminants.

[0038] like Figure 3 The rotary adjuster 25 is threaded onto the outer wall of the flush hose connector 23. It is a circular knob with a non-slip textured surface, facilitating manual operation during surgery. The rotary adjuster 25 has internal threads that mate with the external threads of the flush hose connector 23. Rotating the rotary adjuster 25 allows you to adjust the length of the flush hose connector 23 relative to the irrigation hose 22 to accommodate the depth and angle requirements of different surgical sites.

[0039] Preferably, the liquid pumping mechanism 3 includes a liquid pump 31 , a liquid pumping hose 32 , a liquid pumping connector 33 , an anti-blocking protective sleeve 34 , and an anti-backflow component 35 .

[0040] Preferably, the liquid extraction pump 31 is fixedly arranged at the bottom of the collection box 1 and arranged in parallel with the flushing pump 21 of the flushing mechanism 2 to maintain the overall compactness and operational stability of the device. The liquid extraction pump 31 adopts a medical-grade micro vacuum pump or a peristaltic pump. The pump body shell is made of antibacterial plastic (such as polypropylene) or stainless steel, and the internal motor supports continuous or intermittent operation. During the operation, it is operated by an external control switch or foot switch to avoid hand contact to maintain a sterile environment. The liquid inlet of the liquid extraction pump 31 is connected to the liquid extraction hose 32 through a sealing joint, and the sewage pipe is arranged on the side wall of the liquid extraction pump 31, passes through the hole in the side wall of the collection box 1, and is connected to the external collection container to ensure that the absorbed accumulated fluid is stored in an orderly manner.

[0041] Preferably, the liquid extraction hose 32 is vertically connected to the liquid inlet of the liquid extraction pump 31 and is made of flexible medical silicone or polyurethane material with excellent pressure resistance and anti-aging properties. The length of the liquid extraction hose 32 is 20-50 cm, and it is "L"-shaped. It is arranged parallel to the flushing hose 22 to maintain the overall coordination of the device. The bottom of the hose is tightly connected to the liquid extraction pump 31 by a snap or thread, and the top end extends into the interior of the liquid extraction connector 33 and is fixed by a tightening ring or medical adhesive to ensure the sealing of the connection and prevent suction loss or liquid leakage. The flexible design of the liquid extraction hose 32 allows it to bend moderately with the movement of the liquid extraction connector 33 during surgery to adapt to different surgical angles, while maintaining sufficient rigidity to avoid folding or blocking.

[0042] Preferably, the liquid extraction connector 33 is provided at the end of the liquid extraction hose 32 and is cylindrical in structure. A cylindrical through-groove is defined axially within the connector 33. The inner diameter of the connector 33 matches the outer diameter of the irrigation hose 22, ensuring that accumulated fluid flows smoothly from the front end (near the surgical site) into the liquid extraction hose 32. The inner wall of the through-groove is smooth and features streamlined guide grooves (approximately 0.1-0.3 mm deep) to optimize the flow of accumulated fluid and reduce the risk of turbulence and blockage.

[0043] Preferably, the first end of the liquid extraction joint 33 (the end close to the liquid extraction hose 32) is rotatably connected to the rotary regulator 25. The rotary connection between the rotary regulator 25 and the liquid extraction joint 33 is provided with a micro bearing or a low friction coating (such as polytetrafluoroethylene) to ensure smooth rotation without jamming.

[0044] Preferably, an anti-blocking protective sleeve 34 is provided at the tail end of the liquid extraction connector 33. One annular surface of the anti-blocking protective sleeve 34 is connected to the tail end of the liquid extraction connector 33, and the other annular surface thereof surrounds the connector end of the flushing pipe connector 23 to form a "return"-shaped structure. A plurality of protective holes are provided on the inner and outer layers of the anti-blocking protective sleeve. The anti-blocking protective sleeve 34 solves the problem that the flushing port of the traditional flushing device is often blocked by abdominal tissue during the process of drawing liquid. Especially in deep surgery, the risk of tissue being sucked in may cause the flushing port to be blocked or even cause tissue damage. Through the "return"-shaped structure, the anti-blocking protective sleeve 34 forms a buffer space between the liquid extraction connector 33 and the flushing pipe connector 23, preventing the tissue from directly contacting the flushing port, reducing the pulling force on the tissue, and effectively reducing the possibility of tissue damage. The protective holes on the inner and outer layers not only filter tissue fragments, but also ensure that the suction force is evenly distributed to avoid local blockage.

[0045] like Figure 10 The anti-blocking sleeve 34 has a hemispherical dome structure, smoothly transitioning to the end of the liquid extraction connector 33 to form an integrated, streamlined profile. The hemispherical design allows the anti-blocking sleeve 34 to present a smooth curved surface when contacting the surgical site, effectively preventing damage to the surgical tissue caused by sharp edges. At the same time, the hemispherical structure increases the suction area and improves the efficiency of fluid extraction.

[0046] Preferably, the anti-blocking protective sleeve inner layer 342 is made of a hard material (such as medical stainless steel or polyetheretherketone) to provide structural support. It is shaped like a trumpet. The anti-blocking protective sleeve inner layer 342 is provided with multiple through-holes evenly distributed across the trumpet-shaped surface in a grid-like arrangement, ensuring smooth passage of accumulated fluid. The bottom and sides of the inner layer are secured to the rear end of the liquid extraction connector 33 via threads or snaps, and the inner wall is smooth to reduce adhesion of accumulated fluid.

[0047] Preferably, the outer layer 341 of the anti-blocking protective sleeve is made of a soft material (such as medical silicone or thermoplastic elastomer). It has a hemispherical dome shape and is oriented in the opposite direction to the inner layer. This outer layer 341 is flexible and biocompatible, fitting tightly to the inner layer surface and secured by bonding or heat pressing. The outer hemispherical dome covers the inner layer's through-holes. The outer surface is provided with multiple small holes, also evenly distributed in a grid pattern, to filter tissue fragments, blood clots, or other impurities from the effusion. The outer cylindrical base portion is free of small holes and forms a sealed connection with the inner base, ensuring that effusion enters only through the small holes at the front end of the hemispherical dome, preventing lateral leakage.

[0048] Preferably, multiple groups of anti-backflow components 35 are circumferentially arranged at the end of the liquid extraction connector 33 (at the same end as the anti-blocking protective sleeve 34 or near the tail end), including a second elastic control part 351 and a second one-way valve 352, which prevent the backflow of accumulated liquid through elastic drive and flexible connection mechanism, thereby ensuring the one-way flow and sterility of the suction operation.

[0049] Preferably, the second elastic control member 351 is provided on the inner wall of the end of the liquid extraction joint 33 and is responsible for driving the opening and closing of the second one-way valve 352 through elastic deformation. The second elastic control member 351 includes a second elastic adjustment member 3511, a lever 3512 and a second connecting rope 3513.

[0050] Preferably, the second elastic adjustment member 3511 is elastically connected to the inner wall of the end of the liquid withdrawal connector 33 and is composed of a second spring and multiple second springs. The second spring is a circular or curved thin sheet made of medical stainless steel or a highly elastic polymer (such as polyetheretherketone), with excellent elasticity and fatigue resistance. Multiple second springs (typically 3-6) are evenly distributed along the circumference of the second spring. One end of the second spring is fixed to the edge of the second spring by welding or bonding, and the other end is connected to the inner wall of the end of the liquid withdrawal connector 33 by a micro rivet or clip. The second spring compresses or stretches under the action of suction, driving the second spring to undergo a slight deformation, thereby triggering the valve control action.

[0051] Preferably, the lever 3512 is a slender strip structure made of medical stainless steel or high-strength plastic. The middle part of the lever 3512 is rotatably connected to the inner wall of the end of the liquid extraction joint 33 through a micro-rotating shaft, and can rotate back and forth relative to the inner wall of the end of the liquid extraction joint 33. The middle part of the lever 3512 is rotatably connected to the inner wall of the end of the liquid extraction joint 33 through a micro-rotating shaft or hinge, and the rotating shaft is coated with a low-friction coating (such as polytetrafluoroethylene) to ensure flexible rotation. The lower end of the lever 3512 is connected to the second elastic piece of the second elastic adjustment member 3511 through a buckle or bonding, and the upper end is connected to the second connecting rope 3513. The rotation angle range of the lever 3512 is 0-30 degrees, which can convert the movement of the second elastic piece into a loosening or tightening action of the second connecting rope 3513.

[0052] Preferably, the second connecting cord 3513 is a high-strength, flexible string made of medical-grade nylon or polytetrafluoroethylene fiber, which is stretch-resistant and corrosion-resistant. One end of the second connecting cord 3513 is secured to the other end of the lever 3512 via a micro-buckle. The other end passes through a guide groove on the inner wall of the liquid withdrawal connector 33 and flexibly connects to the side edge of the rotating shaft of the second one-way valve 352. The guide groove design ensures a stable movement of the connecting cord, reducing friction and wear.

[0053] Preferably, the second one-way valve 352 is rotatably connected to the inner wall of the end of the liquid withdrawal connector 33 and is a circular valve plate. The valve plate is connected to the inner wall of the liquid withdrawal connector 33 via a micro-hinge or rotating shaft. The hinge is coated with a low-friction coating to ensure flexible rotation and good sealing. The second one-way valve 352 is flexibly connected to the second elastic control member 351 via a second connecting rope 3513.

[0054] When the liquid extraction pump 31 is started, negative pressure (suction) acts on the second adjusting member, stretching the second spring (by approximately 1-2 mm), causing the second spring to move toward the end away from the inner wall of the liquid extraction connector 33 (i.e., axially outward from the liquid extraction connector 33), thereby driving the lower end of the lever 3512 to move synchronously toward the end away from the inner wall of the liquid extraction connector 33. Due to the rotational connection in the middle of the lever 3512, its upper end moves toward the end closer to the inner wall of the liquid extraction connector 33, causing the second connecting rope 3513 to loosen. At this time, under the driving force of the flow of accumulated liquid (driven by the suction generated by the liquid extraction pump 31), the second one-way valve 352 rotates inward around the hinge and opens (with an opening range of 0-45 degrees), allowing the accumulated liquid to flow from the anti-blocking protective sleeve 34 into the liquid extraction connector 33 and into the collection box 1 through the liquid extraction hose 32.

[0055] When the liquid pump 31 is turned off, the suction force disappears, the second spring returns to its original position, and drives the second elastic plate back toward the inner wall of the liquid withdrawal connector 33. The lower end of the lever 3512 then moves toward the inner wall, while the upper end moves away from the inner wall, tightening the second connecting rope 3513. The second one-way valve 352 closes around the hinge under the action of its own gravity and the pressure difference, tightly sealing the inner wall of the liquid withdrawal connector 33 and preventing the backflow of accumulated liquid or the ingress of external contaminants. Example 2

[0056] Example 2 of the present invention is an optimization of the above-mentioned Example 1, see Figures 1-16 On the basis of Example 1, a valve flap 331 is rotatably provided on the inner wall of the liquid extraction joint 33, a groove 232 is provided at the end of the flushing pipe joint 23, and absorbent cotton 233 is embedded in the front end of the groove 232. The valve flap 331 is used to squeeze the absorbent cotton 233.

[0057] Preferably, the valve flap 331 is rotatably mounted on the inner wall of the liquid withdrawal connector 33 and is made of medical stainless steel or high-strength medical plastic (such as polycarbonate), which has excellent corrosion resistance and mechanical strength. The valve flap 331 is a thin rectangular piece. The valve flap 331 is rotatably connected to the inner wall of the liquid withdrawal connector 33 via a micro-hinge or shaft. The valve flap 331 has a rotation angle range of 0-90 degrees.

[0058] Preferably, the groove 232 is located at the end of the flush pipe connector 23 (i.e., the end closest to the surgical site). It is an annular groove structure distributed circumferentially along the outer wall of the flush pipe connector 23. The outer diameter of the groove 232 is consistent with that of the flush pipe connector 23, and the groove depth is approximately 2-4 mm. An absorbent sponge 233 is embedded in the front end of the groove 232 (i.e., the side closest to the surgical site).

[0059] Preferably, the absorbent cotton 233 is made of a medical-grade, highly absorbent fiber material (such as sodium polyacrylate fiber or medical absorbent cotton), offering high absorbency and biocompatibility, enabling rapid absorption of residual fluid. The absorbent cotton 233 is an annular gasket structure with an outer diameter matching that of the groove 232 and an inner diameter slightly larger than the inner wall of the flush pipe connector 23. It is secured to the inner wall of the front end of the groove 232 using medical adhesive or press-fitting. The surface of the absorbent cotton 233 is treated with an antimicrobial treatment (such as a nanosilver coating) to reduce the risk of infection. Its upper end is exposed to the opening of the groove 232, allowing direct contact with residual fluid at the surgical site. The lower end of the absorbent cotton 233 (i.e., the side closest to the bottom of the groove 232) is tightly aligned with the inner wall of the groove 232 to prevent fluid leakage. A drainage channel 234 is provided on the inner wall of the groove 232, communicating with the lumen of the liquid extraction connector 33.

[0060] Preferably, when the rotary regulator 25 adjusts the extension length of the flush pipe connector 23, the free end (i.e., the non-hinge end) of the valve flap 331 rotates and falls into the groove 232. When the rotary regulator 25 adjusts the flush pipe connector 23 to be retracted inward, the valve flap 331 squeezes the absorbent cotton 233.

[0061] Therefore, this application discloses a method for using a general surgical flushing device, comprising the following steps: Step S1: Start the flushing mechanism 2 to flush the surgical site.

[0062] The flushing mechanism 2 is activated by the flushing pump 21, which pumps irrigating fluid (e.g., saline) from the flushing fluid reservoir at a flow rate of 0.1 L / min. The fluid is then delivered to the surgical site via the flushing hose 22 and flushing pipe connector 23. The pressure of the irrigating fluid acts on the first elastic actuator of the one-way flushing assembly 24, compressing the first spring and spring within the first elastic actuator and squeezing them toward the connecting ring 231, causing the first connecting cord 2412 to loosen. At this point, the first one-way valve 242, under the impact of the irrigating fluid, pivots outward on its hinge to open (with an opening range of 0-45 degrees). Irrigating fluid is then ejected through the end of the flushing pipe connector 23, achieving cleansing and flushing of the surgical site. The irrigating fluid discharge rate can be adjusted using the flushing pump 21 control switch to ensure moderate flushing force and avoid excessive impact on tissue.

[0063] Step S2: Turn off the flushing pump 21 to stop flushing After flushing is complete, flushing pump 21 is turned off, flushing fluid pressure dissipates, and the first spring within the first elastic actuator resets, driving the first spring plate back to its original position and tightening first connecting rope 2412. First one-way valve 242 hinges closed under the influence of its own gravity and the fluid pressure differential, tightly sealing the end of flushing pipe connector 23 and stopping the flow of flushing fluid. This prevents backflow of the fluid and the ingress of external contaminants, maintaining the sterility of the surgical site.

[0064] Step S3: Start the pumping mechanism 3 to absorb the accumulated liquid The suction pump 31 of the fluid extraction mechanism 3 is activated, generating negative pressure (suction). This suction acts on the second elastic actuator of the anti-backflow assembly 35. The second spring within the second elastic actuator stretches, causing the second spring to move away from the inner wall of the fluid extraction connector 33, driving the lower end of the lever 3512 to move away from the inner wall. The middle portion of the lever 3512 pivots, and its upper end moves toward the inner wall of the fluid extraction connector 33, loosening the second connecting cord 3513. The suction generated by the suction pump 31 causes the second one-way valve 352 to pivot inward and open. The accumulated fluid enters the fluid extraction connector 33 through the outer pores and inner through-holes of the anti-blocking protective sleeve 34, then flows through the fluid extraction hose 32 into the collection cassette 1. The double-layer structure of the anti-blocking protective sleeve 34 filters tissue debris from the accumulated fluid (with a filtration efficiency of approximately 15%), preventing clogging. The extraction process continues for 1-2 minutes, until the fluid accumulation at the surgical site is largely cleared.

[0065] Step S4: Adjust the depth by rotating the regulator 25 to absorb the residual fluid If a small amount of residual fluid remains at the surgical site, adjust the extension of the flushing pipe connector 23 by rotating the adjuster 25. The internal threads of the adjuster 25 engage with the external threads at the head of the flushing pipe connector 23. Rotating the adjuster 25 clockwise or counterclockwise allows the absorbent cotton 233 in the groove 232 at the end of the flushing pipe connector 23 to precisely contact the residual fluid. The absorbent cotton 233 is made of highly absorbent fiber material to quickly absorb residual fluid.

[0066] Step S5: retract the flushing pipe connector 23 and squeeze the absorbent cotton 233 to drain the accumulated liquid.

[0067] After absorbing the remaining liquid, the flush pipe connector 23 is retracted by rotating the adjuster 25 in the opposite direction. During this retraction process, the valve flap 331 on the inner wall of the liquid extraction connector 33, driven by the mechanical action of the flush pipe connector 23 or its own gravity, pivots open about a hinge (approximately 0-90 degrees), and its free end falls into the groove 232 at the end of the flush pipe connector 23. As the flush pipe connector 23 continues to retract, the valve flap 331 contacts and squeezes the absorbent cotton 233 in the groove 232, squeezing out the accumulated liquid from the absorbent cotton 233. The squeezed-out liquid falls into the drainage channel 234 in the groove 232.

[0068] Close the second one-way valve 352 and suck out the remaining accumulated fluid.

[0069] When the valve disc 331 is opened, the liquid pump 31 keeps running, and the suction force of the liquid pump 31 sucks out the accumulated liquid in the groove 232. At this time, the pressure acting on the second elastic sheet disappears. When the valve flap 331 opens and squeezes the absorbent cotton 233, the liquid extraction pump 31 keeps running, sucking the accumulated liquid squeezed out of the groove 232 into the collection box 1 through the liquid extraction connector 33 and the liquid extraction hose 32. Since the valve flap 331 opens and decomposes the pressure of the second spring, the suction force (negative pressure) acting on the second spring in the second elastic driver gradually disappears, and the second spring resets, driving the second spring to return to its original position in the direction close to the inner wall of the liquid extraction connector 33. The lower end of the lever 3512 then moves toward the inner wall, and the upper end moves away from the inner wall, pulling the second connecting rope 3513, so that the second one-way valve 352242 closes around the hinge, tightly sealing the liquid extraction connector 33. Subsequently, the liquid extraction pump 31 is turned off and the suction is stopped to prevent the accumulated liquid from flowing back or external contaminants from entering, thereby ensuring the sterility of the surgical site. After the device operation is completed, it can be placed in the storage compartment of the collection box 1 for storage.

[0070] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A general surgical flushing device, characterized in that: Collection box (1), comprising: A flushing mechanism (2) is provided on the collection box (1); The liquid extraction mechanism (3) is arranged on the collection box (1) and is parallel to the flushing mechanism (2), and the ends of the liquid extraction mechanism (3) and the flushing mechanism (2) are coaxially arranged to achieve an integrated flushing and suction operation.

2. A general surgery flushing device according to claim 1, characterized in that: The flushing mechanism (2) comprises: A flushing pump (21) is provided at the bottom of the collection box (1); A flushing hose (22) is vertically arranged on the flushing pump (21); The flushing pipe joint (23) is sleeved on the end of the flushing hose (22), and a one-way flushing component (24) is provided at the tail end. The outer wall of the head end is threadedly connected to a rotary regulator (25) for adjusting the extension length of the flushing mechanism (2).

3. A general surgery flushing device according to claim 2, characterized in that: The one-way flushing assembly (24) includes: A first elastic control member (241) is connected to the connecting ring (231) at the end of the flushing pipe joint (23); The first one-way valve (242) is rotatably connected to the end surface of the connecting ring (231) and is flexibly connected to the first elastic control member (241).

4. A general surgery flushing device according to claim 3, characterized in that: The first elastic control member (241) includes: A first elastic adjustment member (2411) elastically connected to the side wall of the connecting ring (231); The first connecting rope (2412) has a rope body that passes through the side wall of the connecting ring (231), and one end of the first connecting rope (2412) is connected to the first elastic adjusting member (2411), and the other end is connected to the first one-way valve (242).

5. A general surgery flushing device according to claim 1, characterized in that: The liquid pumping mechanism (3) comprises: A liquid extraction pump (31) is arranged at the bottom of the collection box (1) and is parallel to the flushing pump (21); A liquid extraction hose (32) is vertically connected to the liquid extraction pump (31); The liquid extraction joint (33) is arranged at the end of the liquid extraction hose (32), and the liquid extraction joint (33) is sleeved on the outer wall of the flushing pipe joint (23).

6. A general surgery flushing device according to claim 5, characterized in that: The tail end of the liquid extraction joint (33) is provided with an anti-blocking protective sleeve (34), one annular surface of the anti-blocking protective sleeve (34) is connected to the tail end of the liquid extraction joint (33), and the other annular surface thereof surrounds the joint end of the flushing pipe joint (23) to form a "loop"-shaped structure, and a plurality of protective holes are provided on the inner and outer layers of the anti-blocking protective sleeve.

7. A general surgery flushing device according to claim 5, characterized in that: A plurality of groups of anti-backflow components (35) are circumferentially arranged at the end of the liquid extraction joint (33), and the anti-backflow components (35) include: A second elastic control member (351) is provided on the inner wall of the end portion of the liquid extraction joint (33); The second one-way valve (352) is rotatably connected to the end of the liquid extraction joint (33) and is flexibly connected to the second elastic control member (351).

8. A general surgery flushing device according to claim 7, characterized in that: The second elastic control member (351) includes: A second elastic adjustment member (3511) elastically connected to the inner wall of the end of the liquid extraction joint (33); A lever (3512), the middle portion of which is rotatably connected to the inner wall of the end portion of the liquid extraction joint (33), and one end of which is connected to the second elastic adjustment member (3511); The second connecting rope (3513) has one end connected to the other end of the lever (3512) and the other end flexibly connected to the second one-way valve (352).

9. A general surgery flushing device according to claim 7, characterized in that: The inner wall of the liquid extraction joint (33) is rotatably provided with a plurality of valve flaps (331), the end of the flushing pipe joint (23) is provided with a groove (232), the front end of the groove (232) is embedded with absorbent cotton (233), and the valve flap (331) is used to squeeze the absorbent cotton (233).

10. A general surgery flushing device according to claim 9, characterized in that: A drainage channel (234) is provided at the rear end of the groove (232), and the drainage channel (234) is communicated with the inner cavity of the liquid extraction joint (33).

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