Abdominal cavity drainage tube

Abstract

The utility model discloses an abdominal cavity drainage tube, which belongs to the technical field of medical instruments and is characterized in that one end of a tail seat is communicated with one end of a drainage outer tube, the other end of the drainage outer tube penetrates through a fixing cap to be communicated with one end of a drainage inner tube, a negative pressure cavity head is sleeved outside the drainage inner tube, one end of the negative pressure cavity head is in threaded connection with the fixing cap, and the other end of the negative pressure cavity head is inserted into one end of a three-way cavity head; the other end of the three-way cavity head is connected with one end of the drainage tube, one end of the dosing outer tube penetrates through the cavity head on one side of the three-way cavity head and extends into the drainage tube to be communicated with the dosing inner tube, the other end of the dosing outer tube is connected with the dosing connector, the drainage tube is arranged on the outer side of the drainage inner tube in a sleeving mode, and the other end of the drainage tube is connected with the guide head. A developing line is arranged on the drainage tube in the axial direction, and the flushing mechanism is connected with the cavity head on the other side of the three-way cavity head. The utility model integrates the functions of drainage, flushing and dosing, can clean in time to prevent blockage, and avoids the problem that the abdominal cavity of a patient is infected due to the pollution of the abdominal cavity drainage tube.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and more specifically relates to an abdominal drainage tube. Background Art

[0002] Most of the existing abdominal drainage tubes focus more on the function of flushing and preventing blockage, and less on preventing infection. However, in the actual application process, abdominal infection is very common and is likely to develop into critical illness. There is a lack of an abdominal drainage tube that integrates the functions of drainage, flushing, and drug administration in the prior art. The Chinese patent (CN219896743U) in the prior art discloses an abdominal drainage tube, and its technical solution can prevent slippage or leakage during use, but it ignores the possibility of infection during the use of the abdominal drainage tube, and its technical solution cannot avoid the occurrence of infection.

[0003] Therefore, how to provide an abdominal drainage tube is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0004] In view of this, the utility model provides an abdominal drainage tube that integrates the functions of drainage, flushing, and drug administration, can be cleaned in time to prevent blockage, and avoids the problem of abdominal infection of patients caused by the contamination of the abdominal drainage tube.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An abdominal drainage tube, comprising: a tail seat, a Robert clip, a drainage outer tube, a fixing cap, a negative pressure cavity head, a drug administration joint, a drug administration outer tube, a drainage inner tube, a three-way cavity head, a drainage tube, a guide head, a radiopaque line, a drug administration inner tube, and a flushing mechanism; one end of the tail seat is communicated with one end of the drainage outer tube, the Robert clip is arranged on the drainage outer tube, the other end of the drainage outer tube passes through the fixing cap and is communicated with one end of the drainage inner tube, the negative pressure cavity head is sleeved outside the drainage inner tube, and one end is threadedly connected with the fixing cap and the other end is inserted into one end of the three-way cavity head, the other end of the three-way cavity head is connected with one end of the drainage tube, one end of the drug administration outer tube passes through the cavity head on one side of the three-way cavity head and extends into the interior of the drainage tube and is communicated with the drug administration inner tube, the other end of the drug administration outer tube is connected with the drug administration joint, the drainage tube is sleeved outside the drainage inner tube, the other end of the drainage tube is connected with the guide head, the drainage tube is axially provided with a radiopaque line, the flushing mechanism is connected with the cavity head on the other side of the three-way cavity head, and the drainage tube is provided with end holes.

[0007] Further, a plurality of drainage inner holes are axially and circumferentially formed on one side of the drainage inner tube close to the guide head.

[0008] Further, a plurality of drug delivery holes are axially formed in one side of the drug delivery inner tube close to the guide head, and the drug delivery holes are formed in the side of the drug delivery inner tube facing away from the drainage inner tube.

[0009] Further, a sealing ring is adhesively bonded inside the negative pressure cavity head.

[0010] Further, a bacteria-filtering breathable membrane is installed on one side of the negative pressure cavity head close to the fixing cap, and a bacteria-filtering breathable membrane is installed at one end of the three-way cavity head away from the fixing cap.

[0011] Further, a small short tube is connected to one side of the negative pressure cavity head, and a bacteria-filtering valve is installed at one end of the small short tube.

[0012] Further, the flushing mechanism includes: a flushing joint, a flushing outer tube, and a flushing inner tube; one end of the flushing outer tube passes through the cavity head on the other side of the three-way cavity head and extends into the interior of the drainage tube to communicate with the flushing inner tube, and a flushing joint is installed at the other end of the flushing outer tube.

[0013] Further, a plurality of cleaning holes are axially formed in one side of the flushing inner tube close to the guide head, and the cleaning holes are formed in the side of the flushing inner tube facing the drainage inner tube.

[0014] Further, a limiting tube is adhesively bonded to the drainage inner tube on the side of the three-way cavity head (15) away from the negative pressure cavity head.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. Drainage function

[0017] (1) Drainage

[0018] The tailstock is connected to the suction machine, and after adjustment, it sucks outwards. Under the action of the negative pressure inside the drainage tube, the liquid, residues, flocs, etc. outside the device enter the drainage inner tube from the end holes through the drainage inner holes, and are discharged outwards along the drainage inner tube through the drainage outer tube and the tailstock.

[0019] (2) Anti-blocking

[0020] When the drainage tube is severely blocked or there is gas in the patient's abdominal cavity, unscrew the fixing cap and lift the drainage inner tube, the fixing cap, and the drainage outer tube as a whole. Due to the existence of the limiting tube, after lifting a certain distance, the limiting tube will be restricted by the internal structure of the negative pressure cavity head and cannot be lifted further. This lifting distance is equal to the length of the perforated section of the drainage tube and is also equal to the distance between the two bacteria-filtering breathable membranes before and after. At this time, the end of the drainage inner tube is located above the original perforated section, and the blocked substances exit the drainage inner tube and accumulate in the original perforated section. Then, open the flushing joint to connect and flush the drainage tube, and the scouring of the water flow and the repeated pulling action can also mechanically break the blocked substances, and the broken blocked substances are sucked out under the suction of the negative pressure at the head end of the drainage inner tube.

[0021] 2. Pressure balance

[0022] Since the drainage inner tube is in a negative pressure state for a long time, and the drainage inner tube is connected to the tail end of the drainage tube, the external pressure is greater than the internal pressure, which may cause the tube walls of the drainage inner tube and the drainage tube to squeeze and collapse against each other, affecting the normal drainage, flushing, and drug administration functions of the device.

[0023] In the solution of the present utility model, a small short tube is provided on the negative pressure cavity head, and the end of the small short tube is open. Since the pressure at the orifice of the small short tube is greater than the internal air pressure at the tail end of the drainage tube and greater than the internal air pressure at the head end of the drainage inner tube, the external gas of the small short tube will enter the drainage inner tube along this path, thereby automatically suppressing the negative pressure at the tail end of the drainage tube, ensuring the normal operation of the device, and the bacteria filter valve can prevent external gas from carrying bacteria, etc. into the wound and reduce the occurrence of infection.

[0024] 3. Flushing function

[0025] When it is necessary to flush the drainage inner tube, flush solution is injected into the tube through the flushing joint. Under the influence of the negative pressure at the head end of the drainage inner tube, the flush solution enters the drainage inner tube, and only the inner walls of the drainage inner tube and the drainage tube can be cleaned.

[0026] 4. Drug administration function

[0027] When placing the device of the present utility model, the side where the drug administration hole is located is aligned with the affected area, and the liquid medicine reaches the affected area through the drug administration outer tube, the drug administration inner tube, the drug administration hole, and the end hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of the present utility model.

[0030] Figure 2 It is a partial schematic diagram of the fixing cap of the present utility model.

[0031] Figure 3 It is a schematic structural diagram when the drainage outer tube of the present utility model is lifted.

[0032] Figure 4 It is a cross-sectional schematic diagram of the drainage tube of the present utility model.

[0033] Figure 5 It is a schematic structural diagram of the drainage inner tube of the present utility model.

[0034] Figure 6 This is the effect diagram of pulling out the negative pressure cavity head of the present utility model.

[0035] Among them, in the figure:

[0036] 1 - Tailstock; 2 - Robert clamp; 3 - Drain outer tube; 4 - Fixed cap; 5 - Sealing ring; 6 - Negative pressure cavity head; 7 - Bacteria - filtering breathable membrane; 8 - Bacteria - filtering valve; 9 - Flushing joint; 10 - Flushing outer tube; 11 - Drug - administration joint; 12 - Drug - administration outer tube; 13 - Drain inner tube; 14 - Limiting tube; 15 - Three - way cavity head; 16 - Drainage tube; 17 - Guide head; 18 - Developer line; 19 - Small short tube; 20 - Drug - administration inner tube; 21 - Flushing inner tube; 22 - Drainage inner hole; 23 - Drug - administration hole; 24 - Cleaning hole; 25 - End hole. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0038] Please refer to the attached Figure 1-6, the present utility model provides an abdominal drainage tube, comprising: a tail seat 1, a Robert clip 2, a drainage outer tube 3, a fixing cap 4, a negative pressure cavity head 6, a drug administration connector 11, a drug administration outer tube 12, a drainage inner tube 13, a three-way cavity head 15, a drainage tube 16, a guide head 17, a developer line 18, a drug administration inner tube 20 and a flushing mechanism; one end of the tail seat 1 is communicated with one end of the drainage outer tube 3, the Robert clip 2 is arranged on the drainage outer tube 3, the other end of the drainage outer tube 3 passes through the fixing cap 4 and is communicated with one end of the drainage inner tube 13, the negative pressure cavity head 6 is sleeved outside the drainage inner tube 13, and one end is threadedly connected with the fixing cap 4, and the other end is inserted into one end of the three-way cavity head 15, the other end of the three-way cavity head 15 is connected with one end of the drainage tube 16, one end of the drug administration outer tube 12 passes through the cavity head on one side of the three-way cavity head 15 and extends into the interior of the drainage tube 16 and is communicated with the drug administration inner tube 20, the other end of the drug administration outer tube 12 is connected with the drug administration connector 11, the drainage tube 16 is sleeved outside the drainage inner tube 13, the other end of the drainage tube 16 is connected with the guide head 17, a developer line 18 is arranged axially on the drainage tube 16, the flushing mechanism is connected with the cavity head on the other side of the three-way cavity head 15, and a terminal hole 25 is formed in the drainage tube 16. A hook-shaped structure is arranged at the tail end of the negative pressure cavity head 6 and is embedded with the internal bayonet in the three-way cavity head 15, which not only ensures that the two do not slip off but also ensures the airtightness of the device. The tail seat 1 is connected to a suction machine, and after adjustment, suction is applied outwards. Under the action of negative pressure, liquids, residues, floccules, etc. outside the device enter the drainage inner tube 13 from the tube terminal hole 25 and are discharged outwards along the drainage inner tube 13.

[0039] On one side of the drainage inner tube 13 close to the guide head 17, a plurality of drainage inner holes 22 are axially and circumferentially formed, and the axially formed drainage inner holes 22 adjacent to each other are staggeredly formed.

[0040] On one side of the drug administration inner tube 20 close to the guide head 17, a plurality of drug administration holes 23 are axially formed along the drug administration inner tube 20, and the drug administration holes 23 are formed on the side of the drug administration inner tube 20 facing away from the drainage inner tube 13.

[0041] A sealing ring 5 is adhesively bonded inside the negative pressure cavity head 6.

[0042] A bacteria-filtering breathable membrane 7 is installed on one side of the negative pressure cavity head 6 close to the fixing cap 4, and a bacteria-filtering breathable membrane 7 is installed at one end of the three-way cavity head 15 far from the fixing cap 4. The bacteria-filtering breathable membrane 7 and the sealing ring 5 can ensure that no internal and external gas exchange occurs during the process of lifting the drainage inner tube 13, preventing infection. If the blockage is very serious, the negative pressure cavity head 6 can be removed together to take out the blockage inside the tube.

[0043] One side of the negative pressure cavity head 6 is connected with a small short tube 19, and a bacteria-filtering valve 8 is installed at one end of the small short tube 19, which can prevent external gas from carrying bacteria, etc. from entering the wound and reduce the occurrence of infection.

[0044] The flushing mechanism includes: a flushing joint 9, a flushing outer tube 10, and a flushing inner tube 21; one end of the flushing outer tube 10 passes through the cavity head on the other side of the three-way cavity head 15 and extends into the interior of the drainage tube 16 to communicate with the flushing inner tube 21, and the other end of the flushing outer tube 10 is installed with the flushing joint 9.

[0045] On one side of the flushing inner tube 21 close to the guide head 17, a plurality of cleaning holes 24 are axially formed along the flushing inner tube 21, and the cleaning holes 24 are formed on the side of the flushing inner tube 21 facing the drainage inner tube 13.

[0046] A limiting tube 14 is adhesively connected to the drainage inner tube 13 on the side of the three-way cavity head 15 away from the negative pressure cavity head 6. When the drainage inner tube 13 is pulled out, the limiting tube 14 moves accordingly and finally abuts against the bacteria-filtering breathable membrane 7 and the sealing ring 5 installed at one end of the three-way cavity head 15 away from the fixing cap 4.

[0047] The structure of the utility model is simple and easy to use. The tailstock 1 is connected to the suction machine and sucks outward after adjustment. Under the action of the negative pressure inside the drainage tube 16, the liquid, residues, floccules, etc. outside the device enter the drainage inner hole 22 from the end hole 25, and then enter the drainage inner tube 13 along the drainage inner tube 13, and are discharged outward through the drainage outer tube 3 and the tailstock 1. When the drainage tube 16 is severely blocked or there is gas in the patient's abdominal cavity, unscrew the fixing cap 4 and lift the whole of the drainage inner tube 13, the fixing cap 4 and the drainage outer tube 3. Due to the existence of the limit tube 14, after lifting a certain distance, the limit tube 14 will be restricted by the internal structure of the negative pressure cavity head 6 and cannot be lifted further. This lifting distance is equal to the length of the perforated section of the drainage tube 16 and is also equal to the distance between the two front and rear bacteria-filtering breathable membranes 7. At this time, the end of the drainage inner tube 13 is located above the original perforated section, and the blocked substances exit the drainage inner tube 13 and accumulate in the original perforated section. Then, open the flushing joint 9 to connect and flush the drainage tube 16. The flushing of the water flow and the repeated pulling action can also mechanically break the blocked substances, and the broken blocked substances are sucked out under the suction of the negative pressure at the head end of the drainage inner tube 13. Since the inside of the drainage inner tube 13 is in a negative pressure state for a long time, and the drainage inner tube 13 is connected to the tail end of the drainage tube 16, the external pressure is greater than the internal pressure, which may cause the tube walls of the drainage inner tube 13 and the drainage tube 16 to be squeezed and collapsed against each other, affecting the normal drainage, flushing, and drug administration functions of the device. The solution of the utility model is to provide a small short tube 19 on the negative pressure cavity head 6. The end of the small short tube 19 is open. Since the pressure at the orifice of the small short tube 19 is greater than the internal air pressure at the tail end of the drainage tube 16 and greater than the internal air pressure at the head end of the drainage inner tube 13, the external gas of the small short tube 19 will enter the drainage inner tube 13 along this path, so as to automatically inhibit the negative pressure at the tail end of the drainage tube 16 and ensure the normal operation of the device. The bacteria-filtering valve 8 can prevent external gas from carrying bacteria, etc. into the wound and reduce the occurrence of infection. When it is necessary to flush the drainage inner tube 13, inject the flushing solution into the tube through the flushing joint 9. The flushing solution enters the drainage inner tube 13 under the influence of the negative pressure at the head end of the drainage inner tube 13, and can only clean the inner walls of the drainage inner tube 13 and the drainage tube 16. When placing the device of the utility model, align the side where the drug administration hole 23 is located with the affected area. The medicinal liquid reaches the affected area through the drug administration outer tube 12, the drug administration inner tube 20, the drug administration hole 23 and the end hole 25. Therefore, the utility model integrates the functions of drainage, flushing, and drug administration, can clean in time to prevent blockage, and avoids the problem of abdominal cavity infection of patients caused by the contamination of the abdominal cavity drainage tube.

[0048] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An abdominal drainage tube, characterized in that: include: A tailstock (1), a Robert clamp (2), a drainage outer tube (3), a fixing cap (4), a negative pressure cavity head (6), a drug delivery connector (11), a drug delivery outer tube (12), a drainage inner tube (13), a three-way cavity head (15), a drainage tube (16), a guide head (17), a developing line (18), a drug delivery inner tube (20) and a flushing mechanism; one end of the tailstock (1) is connected to one end of the drainage outer tube (3), the Robert clamp (2) is arranged on the drainage outer tube (3), the other end of the drainage outer tube (3) passes through the fixing cap (4) and is connected to one end of the drainage inner tube (13), the negative pressure cavity head (6) is sleeved on the outside of the drainage inner tube (13), one end of which is threadedly connected to the fixing cap (4), and the other end of which is threadedly connected to the fixing cap (4). One end of the three-way cavity head (15) is plugged in, and the other end of the three-way cavity head (15) is connected to one end of the drainage tube (16). One end of the drug administration outer tube (12) passes through the cavity head on one side of the three-way cavity head (15) and extends into the interior of the drainage tube (16) to communicate with the drug administration inner tube (20). The other end of the drug administration outer tube (12) is connected to the drug administration connector (11). The drainage tube (16) is sleeved on the outside of the drainage inner tube (13). The other end of the drainage tube (16) is connected to the guide head (17). A developing line (18) is axially arranged on the drainage tube (16). The flushing mechanism is connected to the cavity head on the other side of the three-way cavity head (15). The drainage tube (16) is provided with a terminal hole (25).

2. The abdominal drainage tube according to claim 1, characterized in that: A plurality of drainage inner holes (22) are provided on one side of the drainage inner tube (13) close to the guide head (17) in the axial and circumferential directions.

3. The abdominal drainage tube according to claim 1, characterized in that: A plurality of dosing holes (23) are provided on a side of the dosing inner tube (20) close to the guide head (17) along the axial direction of the dosing inner tube (20), and the dosing holes (23) are provided on a side of the dosing inner tube (20) facing away from the drainage inner tube (13).

4. The abdominal drainage tube according to claim 1, characterized in that: A sealing ring (5) is bonded inside the negative pressure cavity head (6).

5. The abdominal drainage tube according to claim 4, characterized in that: A bacteria-filtering breathable membrane (7) is installed on the side of the negative pressure cavity head (6) close to the fixed cap (4), and a bacteria-filtering breathable membrane (7) is installed on the end of the three-way cavity head (15) away from the fixed cap (4).

6. The abdominal drainage tube according to claim 1, characterized in that: One side of the negative pressure cavity head (6) is connected to a short tube (19), and one end of the short tube (19) is installed with a bacteria filter valve (8).

7. The abdominal drainage tube according to claim 1, characterized in that: The flushing mechanism comprises: a flushing joint (9), a flushing outer tube (10) and a flushing inner tube (21); one end of the flushing outer tube (10) passes through the cavity head on the other side of the three-way cavity head (15) and extends into the interior of the drainage tube (16) to communicate with the flushing inner tube (21); the other end of the flushing outer tube (10) is installed with a flushing joint (9).

8. The abdominal drainage tube according to claim 7, characterized in that: A plurality of cleaning holes (24) are provided on a side of the flushing inner tube (21) close to the guide head (17) along the axial direction of the flushing inner tube (21), and the cleaning holes (24) are provided on a side of the flushing inner tube (21) facing the drainage inner tube (13).

9. The abdominal drainage tube according to claim 1, characterized in that: The drainage inner tube (13) is bonded to a limiting tube (14) on the side of the three-way cavity head (15) away from the negative pressure cavity head (6).

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