Closed thoracic drainage device
Through the design of the supporting shell, rotating outer ring and drainage fluid holding component, the problem of liquid leakage during the movement of the closed chest drainage device is solved, the stability and safety of the device are improved, and the risk of infection for medical staff is reduced.
Patent Information
- Application Number
- CN202510801353.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-09-26
AI Technical Summary
Existing closed chest drainage devices are prone to liquid leakage during movement and use, which increases the difficulty of medical staff's work and reduces work safety.
A closed chest drainage device was designed, which includes a supporting shell, a rotating outer ring, and a drainage fluid holding component. The hinged connection and counterweight design ensure that the device maintains stability when tilted or shaken, preventing fluid leakage. The drainage port and exhaust port are automatically reset and blocked by the sealing ball under the action of gravity.
It effectively prevents drainage fluid from leaking when tilted or shaken, improves safety and stability of use, and reduces the risk of infection for medical staff.
Smart Images
Figure CN120695274A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of medical technology, and in particular to a closed chest drainage device. Background Art
[0002] Pleural effusion drainage devices are widely used in medical device technology, primarily for draining pleural effusions and alleviating pain. Pleural effusions are a common condition with diverse causes, and differential diagnosis of benign and malignant pleural effusions is a thorny issue for clinicians.
[0003] Currently, commonly used closed chest drainage bottles can be generally divided into three types according to their structure: single-chamber, double-chamber, and triple-chamber. Taking the triple-chamber drainage bottle commonly used in thoracic surgery as an example, it integrates three functional structures: a fluid collection chamber, a water seal chamber, and a pressure regulating chamber. However, it should be noted that after the drainage is completed and when the drainage bottle is moved, as well as during the drainage process, the air port is open and the drainage port is not completely closed. As a result, when the drainage bottle is tilted, the drainage fluid in the drainage bottle is prone to leakage. On the one hand, this increases the difficulty of the medical staff's subsequent cleaning work. On the other hand, if the patient has an infectious disease, the exposure of the pleural effusion can easily cause infection to the medical staff, reducing their work safety.
[0004] Therefore, how to design a closed chest drainage device that can solve the above technical problems is a technical problem that needs to be solved. Summary of the Invention
[0005] In order to solve the above problems, the purpose of the present invention is to provide a closed chest drainage device, which solves the problem that liquid leakage is prone to occur in the existing chest drainage device during movement and use, which not only increases the workload of medical staff but also reduces the work safety of medical staff.
[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: comprising a supporting shell, a rotating outer ring hingedly connected to the supporting shell, and a drainage liquid containing assembly disposed in the supporting shell and hingedly connected to the rotating outer ring;
[0007] The drainage liquid accommodating assembly comprises a connecting upper shell, several leak-proof sub-assemblies fixed in the connecting upper shell, and a connecting lower shell assembly detachably connected to the connecting upper shell; the connecting lower shell assembly comprises a connecting middle shell detachably connected to the connecting upper shell and having the same diameter as the connecting upper shell, and a liquid storage bowl fixed to the bottom of the connecting middle shell and having the same diameter as the connecting middle shell; the connecting upper shell is vertically provided with a first partition plate, a second partition plate and a bent partition plate from front to back; the liquid storage bowl is vertically provided with a blocking plate and a third partition plate from front to back; the connecting upper shell and the connecting lower shell assembly are connected to form a complete and sealed container, and the first partition plate and the connecting lower shell assembly are connected The second partition plate is arranged between the inner side wall of the liquid bowl and the blocking plate, and the bent partition plate is arranged between the third partition plate and the inner side wall of the liquid bowl on the other side; a first accommodating chamber is formed between the inner side wall of the connected upper shell and the first partition plate, a second accommodating chamber is formed between the first partition plate and the second partition plate, a third accommodating chamber is formed between the second partition plate and the blocking plate, a water seal chamber is formed between the blocking plate and the third partition plate, and a pressure regulating chamber is formed between the third partition plate and the inner side wall of the liquid bowl; a first liquid outlet is provided on the first partition plate, a second liquid outlet is provided on the second partition plate, and an air outlet is provided on the blocking plate;
[0008] The position of the connecting upper shell corresponding to the first accommodating chamber is communicated with a drainage socket, the position of the connecting upper shell corresponding to the water seal chamber is communicated with a connection socket for an external suction device, and the position of the connecting upper shell corresponding to the pressure regulating chamber is provided with an exhaust port; the leakage-proof subassemblies are symmetrically fixed in pairs between the inner side wall of the connecting upper shell and the side wall of the first partition plate, and between the inner side wall of the connecting upper shell and the side wall of the bent partition plate; the leakage-proof subassemblies each include a hinged seat, a connecting rod with one end hingedly connected to the hinged seat, and a sealing ball fixedly connected to the movable end of the connecting rod for sealing the drainage socket and the connecting socket;
[0009] A plurality of first limiting grooves are provided at intervals along the circumference of the top of the inner circumferential wall of the supporting shell, and a plurality of second limiting grooves are provided at intervals along the circumference of the outer circumferential wall of the connecting upper shell; a plurality of first limiting blocks that cooperate with the first limiting grooves are fixed at intervals on the outer circumferential wall of the rotating outer ring, and a plurality of second limiting blocks that cooperate with the second limiting grooves are fixed at intervals on the inner circumferential wall of the rotating outer ring.
[0010] Furthermore, support feet are hingedly provided at the four corners of the bottom surface of the support shell.
[0011] Furthermore, a connecting suction cup is provided on the bottom surface of the supporting shell.
[0012] Furthermore, the liquid outlet ends of the drainage socket and the connecting socket are provided with arc-shaped connecting grooves that match the blocking balls, and a magnetic element that is magnetically connected to the blocking balls is provided in the arc-shaped connecting grooves.
[0013] Furthermore, a connection groove is provided on the upper end surface of the connecting middle shell, and a connection block matching the shape and size of the connection groove is fixedly provided on the position of the lower end surface of the connecting upper shell corresponding to the connection groove.
[0014] Furthermore, the air outlet is higher than the first liquid outlet and the second liquid outlet.
[0015] Furthermore, a first slot cooperating with the first partition plate is provided at a position corresponding to the first partition plate on the bottom of the liquid bowl, a second slot cooperating with the second partition plate is provided at a position corresponding to the second partition plate, and a third slot cooperating with the blocking plate is provided at a position corresponding to the blocking plate on the top surface of the upper shell.
[0016] Furthermore, sealing strips are provided on the inner side walls of the first slot, the second slot and the third slot.
[0017] Furthermore, a counterweight is provided at the bottom of the liquid bowl.
[0018] Furthermore, a handle is fixedly provided on the outer peripheral wall of the support shell for facilitating the movement of the support shell.
[0019] The present invention has the following beneficial effects:
[0020] 1-The new invention provides a rotating outer ring, a supporting outer shell and a drainage liquid accommodating assembly. The bottom of the connected lower shell is hemispherical and a counterweight is fixed inside. The bottom area is relatively large. When it is not moving, the mass of the bottom of the connected lower shell is high. The bottom of the liquid bowl has high stability and can resist slight tilting. When the supporting outer shell is moved and shakes and tilts to one side, its center of gravity changes. However, due to the hinged connection between the drainage liquid accommodating assembly and the rotating outer ring, the hinged connection between the supporting outer ring and the rotating outer ring, and the counterweight design at the bottom of the liquid bowl, the center of gravity returns to the bottom of the liquid bowl when it tilts to maintain stability, avoid the accumulated liquid in the container from spilling and leaking when moving, and increase safety in use.
[0021] 2-When the present invention is shaken and tilted, the blocking ball on the opposite side of the drainage socket and the exhaust port shakes and tilts toward the drainage socket and the exhaust port and presses against the drainage socket and the exhaust port. After the present invention is reset, the blocking ball is reset under the influence of gravity to continue drainage, further preventing the accumulated liquid in the container from dumping and leaking, thereby increasing safety in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a cross-sectional schematic diagram of the present invention;
[0023] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram in the middle;
[0024] Figure 3 For the present invention Figure 1 A partial enlarged schematic diagram of point B in the middle.
[0025] Description of reference numerals:
[0026] 1-support shell, 11-first limiting groove, 12-support foot, 13-connecting suction cup, 14-handle;
[0027] 2-rotating outer ring, 21-first limit block, 22-second limit block;
[0028] 3- drainage liquid accommodating component, 31- connecting upper shell, 311- first partition plate, 3111- first liquid outlet, 312- second partition plate, 3121- second liquid outlet, 313- bent partition plate, 314- drainage socket, 315- connecting socket, 3151- connecting groove, 3152- magnetic suction component, 316- exhaust port, 317- second limiting groove, 318- connecting block, 319- third slot, 32- leak-proof subassembly, 321- hinged seat, 3 22-connecting rod, 323-sealing ball, 33-connecting lower shell subassembly, 331-connecting middle shell, 3311-connecting groove, 332-liquid bowl, 3321-blocking plate, 33211-air vent, 3322-third partition plate, 3323-first slot, 33231-sealing strip, 3324-second slot, 3325-counterweight, 34-first accommodating chamber, 35-second accommodating chamber, 36-third accommodating chamber, 37-water seal chamber, 38-pressure regulating chamber. DETAILED DESCRIPTION
[0029] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:
[0030] See also Figure 1-3 As shown, the solution includes a supporting shell 1, a rotating outer ring 2 hingedly connected to the supporting shell 1, and a drainage liquid containing component 3 disposed in the supporting shell 1 and hingedly connected to the rotating outer ring 2;
[0031] The drainage liquid accommodating component 3 includes a connecting upper shell 31, a plurality of leak-proof sub-components 32 fixedly arranged in the connecting upper shell 31, and a connecting lower shell component 33 detachably connected to the connecting upper shell 31; the connecting lower shell component 33 includes a connecting middle shell 331 detachably connected to the connecting upper shell 31 and having the same diameter as the connecting upper shell 31, and a liquid storage bowl 332 fixedly arranged at the bottom of the connecting middle shell 331 and having the same diameter as the connecting middle shell 331; the connecting upper shell 31 is vertically provided with a first partition plate 311, a second partition plate 312 and a bent partition plate 313 from front to back; the liquid storage bowl 332 is vertically provided with a blocking plate 3321 and a third partition plate 3322 from front to back; the connecting upper shell 31 and the connecting lower shell component 33 are connected to form a complete and sealed container, and the first partition plate 311 and the second partition plate 312 are arranged in the The foldable container 330 has two opposite ends, one of which is for folding the container 302 and the other one of which is for folding the container 302. The foldable container 330 has two opposite ends, and one of which is for folding the container 302. The foldable container 330 has two opposite ends, and one of which is for folding the container 302.
[0032] The position of the connecting upper shell 31 corresponding to the first accommodating chamber 34 is connected to a drainage socket 314, the position of the connecting upper shell 31 corresponding to the water seal chamber 37 is connected to a connection socket 315 for an external suction device, and the position of the connecting upper shell 31 corresponding to the pressure regulating chamber 38 is provided with an exhaust port 316; the leakage prevention subassemblies are symmetrically fixed in pairs between the inner side wall of the connecting upper shell 31 and the side wall of the first partition plate 311, and between the inner side wall of the connecting upper shell 31 and the side wall of the bent partition plate 313; the leakage prevention subassemblies 32 each include a hinge seat 321, a connecting rod 322 with one end hingedly connected to the hinge seat 321, and a blocking ball 323 fixedly connected to the movable end of the connecting rod 322 for blocking the drainage socket 314 and the connecting socket 315;
[0033] A plurality of first limiting grooves 11 are provided at intervals along the circumference of the top of the inner circumferential wall of the supporting shell 1, and a plurality of second limiting grooves 317 are provided at intervals along the circumference of the outer circumferential wall of the connecting upper shell 31; a plurality of first limiting blocks 21 that cooperate with the first limiting grooves 11 are fixedly provided at intervals on the outer circumferential wall of the rotating outer ring 2, and a plurality of second limiting blocks 22 that cooperate with the second limiting grooves 317 are fixedly provided at intervals on the inner circumferential wall of the rotating outer ring 2.
[0034] Furthermore, the bottom surface of the support housing 1 is hinged with support feet 12 at each of the four corners, which is used to facilitate the support housing 1 to be placed on the ground. Furthermore, the bottom surface of the support housing 1 is also provided with a connecting suction cup 13. According to the use needs, the support feet 12 can be flipped over and the connecting suction cup 13 can be used to fix the support housing 1 to the ground, thereby increasing the tightness of the connection between the support housing 1 and the ground.
[0035] The drainage socket 314 and the liquid outlet end of the connection socket 315 are provided with an arc-shaped connection groove 3151 that matches the blocking ball 323, and a magnetic attraction member 3152 that is magnetically connected to the blocking ball 323 is provided in the arc-shaped connection groove 3151, thereby increasing the connection tightness between the connection groove 3151 and the blocking ball 323.
[0036] Furthermore, a connection groove 3311 is formed on the upper end surface of the connecting middle shell 331 , and a connection block 318 matching the shape and size of the connection groove 3311 is fixedly provided on the lower end surface of the connecting upper shell 31 at a position corresponding to the connection groove 3311 .
[0037] Furthermore, the air outlet 33211 is higher than the first liquid outlet 3111 and the second liquid outlet 3121 .
[0038] Furthermore, a first slot 3323 cooperating with the first partition plate 311 is provided at a position on the bottom of the liquid bowl 332 corresponding to the first partition plate 311, a second slot 3324 cooperating with the second partition plate 312 is provided at a position corresponding to the second partition plate 312, and a third slot 319 cooperating with the blocking plate 3321 is provided at a position on the inner top surface of the connecting upper shell 31 corresponding to the blocking plate 3321.
[0039] Furthermore, sealing strips 33231 are provided on the inner side walls of the first slot 3323 , the second slot 3324 and the third slot 319 .
[0040] Furthermore, a counterweight 3325 is provided at the bottom of the liquid bowl 332 to help the liquid bowl 332 maintain balance.
[0041] Furthermore, a handle 14 is fixedly provided on the outer peripheral wall of the supporting shell 1 for facilitating the movement of the supporting shell 1 .
[0042] The working principle is roughly as follows:
[0043] When in use, the patient places the support shell 1 on the ground, plugs the drainage tube into the drainage socket 314, fills water into the water seal chamber 37 and the pressure regulating chamber 38, and then plugs the suction device into the drainage socket 314;
[0044] During use, the pleural effusion and blood accumulation are injected into the first accommodating chamber 34 in sequence through the drainage tube, and enter the second accommodating chamber 35 through the first liquid outlet 3111, and enter the third accommodating chamber 36 through the second liquid outlet 3121; and the drainage gas in the pleural cavity enters the water seal chamber 37 through the first liquid outlet 3111, the second liquid outlet 3121 and the air outlet, and is discharged through an external suction device. At the same time, it should be noted that the outside air enters the pressure regulating chamber 38 with the negative pressure, and ensure that the negative pressure does not exceed 20 cm of water column height.
[0045] The bottom of the connecting lower shell is hemispherical and a counterweight 3325 is fixed inside. The bottom area is relatively large. When it is not moving, the mass of the connecting lower shell bottom is the bottom of the liquid bowl 332. The bottom of the bowl has high stability and can resist slight tilting. When the supporting shell 1 is moved and shakes and tilts to one side, its center of gravity changes. However, due to the hinged connection between the drainage liquid accommodating component 3 and the rotating outer ring 2, the supporting shell 1 and the rotating outer ring 2 are hingedly connected, and the counterweight 3325 at the bottom of the liquid bowl 332 is designed so that the center of gravity returns to the bottom of the liquid bowl 332 when it tilts to keep it stable. At the same time, when it is shaken and tilted, such as tilting to the right, the blocking ball 323 on the left side below the drainage socket 314 and the exhaust port 316 shakes and tilts toward the drainage socket 314 and the exhaust port 316 and presses against the drainage socket 314 and the exhaust port 316, further preventing leakage of drainage liquid.
[0046] The above description is only a specific embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A closed chest drainage device, characterized in that: It comprises a supporting shell (1), a rotating outer ring (2) hingedly connected to the supporting shell (1), and a drainage liquid accommodating component (3) disposed in the supporting shell (1) and hingedly connected to the rotating outer ring (2); The drainage liquid accommodating assembly (3) comprises a connecting upper shell (31), a plurality of leak-proof subassemblies (32) fixedly arranged in the connecting upper shell (31), and a connecting lower shell subassembly (33) detachably connected to the connecting upper shell (31); the connecting lower shell subassembly (33) comprises a connecting middle shell (331) in a circular shape detachably connected to the connecting upper shell (31) and having the same diameter as the connecting upper shell (31), and a liquid holding portion fixedly arranged at the bottom of the connecting middle shell (331) and having the same diameter as the connecting middle shell (331). The bowl (332); the connecting upper shell (31) is vertically provided with a first partition plate (311), a second partition plate (312) and a bent partition plate (313) from front to back; the liquid bowl (332) is vertically provided with a blocking plate (3321) and a third partition plate (3322) from front to back; the connecting upper shell (31) and the connecting lower shell subassembly (33) are connected to form a complete closed container, and the first partition plate (311) and the second partition plate (312) are provided on the liquid bowl (332). The inner wall of the bowl (332) and the blocking plate (3321) are provided between the bent partition plate (313) and the inner wall of the other side of the liquid-containing bowl (332); a first accommodating cavity (34) is formed between the inner wall of the connecting upper shell (31) and the first partition plate (311); a second accommodating cavity (35) is formed between the first partition plate (311) and the second partition plate (312); a second accommodating cavity (36) is formed between the second partition plate (312) and the blocking plate (3321); ), a water sealing cavity (37) is formed between the baffle plate (3321) and the third partition plate (3322), and a pressure regulating cavity (38) is formed between the third partition plate (3322) and the inner wall of the liquid bowl (332); a first liquid outlet (3111) is provided on the first partition plate (311), a second liquid outlet (3121) is provided on the second partition plate (312), and an air outlet (33211) is provided on the baffle plate (3321); The position on the connecting upper shell (31) corresponding to the first accommodating chamber (34) is connected to a drainage socket (314), the position on the connecting upper shell (31) corresponding to the water sealing chamber (37) is connected to a connection socket (315) for an external suction device, and the position on the connecting upper shell (31) corresponding to the pressure regulating chamber (38) is provided with an exhaust port (316); the leak-proof subassemblies are symmetrically fixed in pairs between the inner side wall of the connecting upper shell (31) and the side wall of the first partition plate (311) and the inner side wall of the connecting upper shell (31) and the side wall of the bent partition plate (313); the leak-proof subassemblies (32) each include a hinge seat (321), a connecting rod (322) one end of which is hingedly connected to the hinge seat (321), and a blocking ball (323) fixedly connected to the movable end of the connecting rod (322) for blocking the drainage socket (314) and the connecting socket (315); A plurality of first limiting grooves (11) are provided at intervals along the circumference of the top of the inner peripheral wall of the supporting shell (1), and a plurality of second limiting grooves (317) are provided at intervals along the circumference of the outer peripheral wall of the connecting upper shell (31); a plurality of first limiting blocks (21) that cooperate with the first limiting grooves (11) are fixedly provided at intervals on the outer peripheral wall of the rotating outer ring (2), and a plurality of second limiting blocks (22) that cooperate with the second limiting grooves (317) are fixedly provided at intervals on the inner peripheral wall of the rotating outer ring (2).
2. A closed chest drainage device according to claim 1, characterized in that: The four corners of the bottom surface of the supporting shell (1) are hingedly provided with supporting feet (12).
3. The closed chest drainage device according to claim 1, characterized in that: The bottom surface of the supporting shell (1) is also provided with a connecting suction cup (13).
4. A closed chest drainage device according to claim 1, characterized in that: The drainage socket (314) and the liquid outlet end of the connection socket (315) are provided with an arc-shaped connection groove (3151) that matches the blocking ball (323), and a magnetic attraction part (3152) that is magnetically connected to the blocking ball (323) is provided in the arc-shaped connection groove (3151).
5. The closed chest drainage device according to claim 1, characterized in that: The upper end surface of the connecting middle shell (331) is provided with a connecting groove (3311), and the lower end surface of the connecting upper shell (31) is fixed with a connecting block (318) that matches the shape and size of the connecting groove (3311) at a position corresponding to the connecting groove (3311).
6. The closed chest drainage device according to claim 1, characterized in that: The air outlet (33211) is higher than the first liquid outlet (3111) and the second liquid outlet (3121).
7. The closed chest drainage device according to claim 1, characterized in that: A first slot (3323) cooperating with the first partition plate (311) is provided at a position on the bottom of the liquid holding bowl (332) corresponding to the first partition plate (311), a second slot (3324) cooperating with the second partition plate (312) is provided at a position corresponding to the second partition plate (312), and a third slot (319) cooperating with the blocking plate (3321) is provided at a position on the inner top surface of the connecting upper shell (31) corresponding to the blocking plate (3321).
8. The closed chest drainage device according to claim 7, characterized in that: Sealing strips (33231) are provided on the inner side walls of the first slot (3323), the second slot (3324) and the third slot (319).
9. The closed chest drainage device according to claim 1, characterized in that: A counterweight (3325) is also provided at the bottom of the liquid bowl (332).
10. The closed chest drainage device according to claim 1, characterized in that: A handle (14) for facilitating the movement of the supporting shell (1) is fixedly provided on the outer peripheral wall of the supporting shell (1).