Disposable negative pressure anti-overflow drainage device
By designing a disposable negative pressure overflow prevention device, which utilizes a float and a flexible corrugated pipe structure, the problems of waste liquid overflow and inconvenient operation of the drainage device are solved. This achieves automatic overflow prevention and simplified replacement, reducing storage space and the risk of odor diffusion.
Patent Information
- Application Number
- CN202422825012.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing drainage devices are inconvenient to replace when the waste liquid overflows, and require medical staff to continuously monitor the liquid level, which makes operation inconvenient.
A disposable negative pressure overflow prevention device was designed, which includes an overflow prevention float structure for the suction tube and the liquid extraction tube. The overflow prevention device adopts a double-sphere structure, which seals the liquid extraction tube port with the float to prevent waste liquid from overflowing. A bendable corrugated tube and a stopper are also provided to seal the tube opening, simplifying the replacement process.
It achieves automatic overflow prevention of waste liquid, simplifies the replacement process, reduces operational complexity, lowers storage space requirements, and prevents the spread of waste liquid odor.
Smart Images
Figure CN223668373U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical drainage device field, especially one -off negative pressure anti -overflow drainage device. BACKGROUND
[0002] Disposable drainage device is the medical field more commonly used medical equipment, through the drainage device the waste liquid in patient's body is led out, the existing drainage device mainly includes the bag body, the bag body has the suction port and the outlet, two ports are connected with the catheter, the catheter of suction port is connected with the operation of patient, the catheter of outlet is connected with negative pressure source, starts the equipment, and the waste liquid of patient is drawn out, if the waste liquid in bag is too much, waste liquid overflows to the catheter of outlet, and it is more inconvenient when replacing the drainage bag, in order to avoid this situation, the existing drainage bag is transparent, and the lower scale is marked on the bag body, but this needs medical staff to observe the liquid level in the bag body at all times, and also needs to control the equipment switch, when reaching the maximum liquid level, the equipment switch is closed, it is very inconvenient. UTILITY MODEL CONTENTS
[0003] The utility model discloses a disposable negative pressure anti -overflow drainage device, can effectively prevent the waste liquid in bag body from overflowing, simple structure, and convenient medical staff timely replacement bag body.
[0004] The utility model discloses a technical scheme: disposable negative pressure anti -overflow drainage device, including soft bag and end cap, the end cap has the inhale pipe and the liquid pumping pipe, and the upper end of inhale pipe and liquid pumping pipe extends to the outside of end cap, and the lower end of inhale pipe and liquid pumping pipe extends to the inside of soft bag, the lower end of liquid pumping pipe is equipped with the corrugated pipe of bending, and the side of corrugated pipe has a plurality of square grooves for negative pressure suction, the corrugated pipe is equipped with the anti -overflow float ball for sealing the lower end of liquid pumping pipe, the anti -overflow float ball includes two spheres in the corrugated pipe, and the middle rod is equipped between the two spheres.
[0005] In the disposable negative pressure anti -overflow drainage device described above, the soft bag is connected with the end cap through the sealing connection ring.
[0006] In the disposable negative pressure anti -overflow drainage device described above, the end cap has a ring edge on the outside, and the convex is equipped on the ring edge and is symmetrical with each other.
[0007] In the disposable negative pressure anti -overflow drainage device described above, the length of inhale pipe is longer than the length of liquid pumping pipe.
[0008] In the disposable negative pressure anti -overflow drainage device described above, the plug is sleeved on the outer end of inhale pipe and liquid pumping pipe.
[0009] In the disposable negative pressure anti -overflow drainage device described above, the plug includes the sleeve ring of liquid pumping pipe or inhale pipe, and the sleeve ring has the extension belt on one end, and the end of extension belt has the plug head inserted into the pipe orifice.
[0010] In the disposable negative pressure anti-overflow drainage device, one end of the plug head has a hand-holding piece.
[0011] In the disposable negative pressure anti-overflow drainage device, the end of the corrugated pipe has a conical groove with a through hole.
[0012] Compared with the prior art, the utility model has the following advantages:
[0013] 1. In the utility model, the suction pipe is connected with the patient's operation site through a catheter, the liquid suction pipe is connected with a negative pressure source through a catheter, the equipment is started, the waste liquid at the patient's operation site enters the soft bag, as the waste liquid in the bag increases, the buoyancy of the waste liquid lifts the anti-overflow floating ball and seals the port of the liquid suction pipe, the equipment cannot continue to form negative pressure to suck the waste liquid, the waste liquid cannot overflow from the liquid suction pipe, a good anti-overflow effect is achieved, the structure is simple, and medical staff can conveniently replace the new bag.
[0014] 2. The soft bag can be compressed and folded, and the corrugated pipe can be bent, so that the whole device is compressed, the storage space is reduced, and the device is convenient to store.
[0015] 3. The plug is arranged to conveniently seal the pipe opening and prevent the diffusion of the odor of the waste liquid. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic view of the utility model;
[0017] Figure 2 It is a schematic view of the compressed state of the soft bag;
[0018] Figure 3 It is a schematic view of the square groove;
[0019] Figure 4 It is a schematic view of the compressed state of the corrugated pipe;
[0020] Figure 5 It is a schematic view of the anti-overflow floating ball;
[0021] Figure 6 It is a schematic view of the plug.
[0022] Markings in the drawings: 1-soft bag, 2-end cover, 3-suction pipe, 4-liquid suction pipe, 5-corrugated pipe, 6-square groove, 7-anti-overflow floating ball, 8-ring edge, 9-protrusion, 10-plug, 11-sleeve ring, 12-extension belt, 13-plug head, 14-hand-holding piece, 15-conical groove, 71-ball, 72-intermediate rod. DETAILED DESCRIPTION
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0024] Example: A disposable negative pressure anti-overflow drainage device, comprising a soft bag 1 and an end cap 2, as shown in the attached diagram. Figure 1 As shown, the soft bag 1 is connected to the end cap 2 via a sealing ring, achieving good sealing between the soft bag and the end cap. The end cap 2 has a ring edge 8 on its outer side, with symmetrical protrusions 9 on the ring edge 8, which allow the entire device to be mounted on a frame. The end cap 2 has a suction tube 3 and a liquid extraction tube 4. The upper ends of the suction tube 3 and the liquid extraction tube 4 extend to the outside of the end cap 2, and the lower ends extend into the soft bag 1. The length of the suction tube 3 is longer than the length of the liquid extraction tube 4, creating a misalignment of the negative pressure airflow for better negative pressure drainage. The lower end of the liquid extraction tube 4 is fitted with a bendable corrugated tube 5, allowing the soft bag to be folded and compressed, while the corrugated tube can also be bent, enabling the entire device to be compressed and folded for easy storage. Figure 2 and 4 As shown; the corrugated pipe 5 has multiple square grooves 6 on its side for negative pressure suction, as attached. Figure 3 As shown, when negative pressure is generated inside the bag, airflow will pass through the square groove. There are two sets of square grooves, two in each set. One set is 6 mm long and 4 mm wide, and the other set is 8 mm long and 4 mm wide. The corrugated pipe 5 is embedded with an anti-overflow float 7 for sealing the lower end of the liquid extraction pipe 4, as shown in the attached diagram. Figure 5 As shown, as the liquid level inside the soft bag gradually rises, the buoyancy generated by the liquid will lift the anti-overflow float, which will then seal the port of the suction pipe, preventing waste liquid from overflowing. The anti-overflow float 7 includes two spheres 71 disposed inside the corrugated pipe 5, with a central rod 72 between the two spheres 71. The central rod is made of rigid material, and the spheres are hollow. The central rod is fixed to the spheres on both sides, creating a double-sphere structure that can secure the spheres. With a single-sphere structure, as the liquid level inside the corrugated pipe rises, the sphere is prone to rolling under the buoyancy of the waste liquid, failing to effectively seal the suction pipe opening. With the double-sphere structure, the lower sphere rises upon contact with the waste liquid, and the entire structure gradually rises until the upper sphere seals the suction pipe opening. The waste liquid level is kept at a distance from the suction pipe opening, preventing excessive overflow. The end of the corrugated pipe 5 has a conical groove 15 with a flow passage hole. The lower sphere 71 is embedded in the conical groove 15, so that the liquid level of the waste liquid diffuses from the center of the sphere to the outside, thereby achieving stable buoyancy of the sphere.
[0025] The outer ends of the suction tube 3 and the liquid extraction tube 4 are fitted with plugs 10, as shown in the attached figure. Figure 6As shown, the plug 10 includes a sleeve ring 11 sleeved on the suction tube 4 or the suction tube 3, the sleeve ring 11 has an extension belt 12 at one end, the end of the extension belt 12 has a plug head 13 plugged into the pipe orifice, the plug can plug the pipe orifice of the suction tube and the suction tube, avoid the odor of waste liquid from spreading, and the plug head is of rubber structure. The plug head 13 has a hand piece 14 at one end, and the hand piece can conveniently hold the plug head. The utility model is of disposable material, does not need to be cleaned, is easy to handle, secondly, the utility model is low in processing and production cost and high in performance price ratio.
[0026] The working principle of the utility model is: the suction tube is connected with the patient operation site through a catheter, the suction tube is connected with a negative pressure source through a catheter, the equipment is started, the waste liquid of the patient operation site enters the soft bag, as the waste liquid in the bag body increases, the buoyancy of the waste liquid makes the anti-overflow floating ball float up and seal the port of the suction tube, the equipment cannot continue to form negative pressure to suck the waste liquid, the waste liquid cannot overflow from the suction tube, a good anti-overflow effect is achieved, the structure is simple, and medical staff can conveniently replace the new bag body in time.
[0027] The above embodiment only expresses the implementation mode of the utility model, the description is more specific and detailed, but can not be understood as the limitation of the utility model patent range, and in the embodiment, up, down, left, right, front and back only represent relative positions and do not represent absolute positions. It should be pointed out that, for ordinary skilled persons in the art, without departing from the utility model concept, a plurality of deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.
Claims
1. A disposable negative pressure spill-proof drainage device comprising a soft bag (1) and an end cap (2), characterized in that: The end cover (2) has a suction pipe (3) and a liquid suction pipe (4) on it, the upper end of the suction pipe (3) and the liquid suction pipe (4) extends to the outside of the end cover (2), and the lower end of the suction pipe (3) and the liquid suction pipe (4) extends to the soft bag (1); the lower end of the liquid suction pipe (4) is provided with a bendable bellows (5), the side of the bellows (5) has a plurality of square grooves (6) for negative pressure suction; the bellows (5) is provided with an anti-overflow floating ball (7) for sealing the lower end of the liquid suction pipe (4); the anti-overflow floating ball (7) comprises two spherical bodies (71) arranged in the bellows (5), and an intermediate rod (72) is arranged between the two spherical bodies (71).
2. The negative pressure spill-proof drainage device of claim 1, wherein: The soft bag (1) is connected with the end cover (2) through a sealing connecting ring.
3. The negative pressure spill-proof drainage device of claim 1, wherein: The outer side of the end cover (2) has a ring edge (8), and the ring edge (8) is provided with protrusions (9) which are symmetrical to each other.
4. The negative pressure spill-proof drainage device of claim 1, wherein: The length of the suction pipe (3) is longer than the length of the liquid suction pipe (4).
5. The negative pressure spill-proof drainage device of claim 1, wherein: The outer end of the suction pipe (3) and the liquid suction pipe (4) is sleeved with a plug (10).
6. The negative pressure spill-proof drainage device of claim 5, wherein: The plug (10) comprises a sleeve ring (11) sleeved on the liquid suction pipe (4) or the suction pipe (3), one end of the sleeve ring (11) has an extension belt (12), and the end of the extension belt (12) has a plug head (13) inserted into the pipe opening.
7. The negative pressure spill-proof drainage device of claim 6, wherein: One end of the plug head (13) has a hand piece (14).
8. The negative pressure spill-proof drainage device of claim 1, wherein: The end of the bellows (5) has a conical groove (15) with a flow hole.