Chest drainage tube

Abstract

The utility model belongs to the technical field of medical instruments, and particularly discloses a chest drainage tube which comprises a drainage tube body and a fixing assembly. The fixing assembly is installed on the outer side of the drainage tube body and plays a role in fixing the drainage tube body, and the drainage tube body is prevented from moving. The fixing assembly comprises an annular plate, the annular plate is provided with a channel hole used for installing a drainage tube body, the annular plate is located on the outer side of the skin and provided with a cavity for containing liquid medicine, a plurality of liquid outlets are formed in the position, close to the drainage tube body, of the annular plate in the circumferential direction at intervals, a liquid injection opening is formed in the surface of the annular plate, and the liquid injection opening and the liquid outlets are communicated with the cavity. When a wound needs to be nursed, liquid medicine is injected into the cavity and flows to the periphery of the wound through the liquid outlet to nurse the wound, the wound can be nursed without detaching the annular plate, local infection is effectively prevented, and pain of a patient is relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a thoracic drainage tube. Background Art

[0002] Drainage tubes are generally tubes placed in body cavities, mainly used to be placed in body cavities after surgery to drain blood, pus, and other liquids after surgery. The purposes of placing drainage tubes are: (1) to prevent the accumulation of exudate in the body from causing infection; (2) to monitor the occurrence of anastomotic leakage; (3) to monitor the bleeding situation in the cavity after surgery; (4) the wound of trauma is generally a contaminated wound, and placing a drainage tube after surgery can prevent the accumulation of bacteria and other pollutants from causing infection.

[0003] Commonly used drainage tubes include thoracic drainage tubes placed in the chest cavity, abdominal drainage tubes placed in the abdominal cavity, urinary catheters, etc. Thoracic drainage is to place one end of the drainage tube into the chest cavity and the other end into a drainage bottle at a lower position to discharge gas or collect the liquid in the chest cavity, so that the lung tissue can reopen and recover its function. As a treatment method, it is widely used in the drainage of hemothorax, pneumothorax, empyema, and after thoracotomy, and plays a very important role in the treatment of diseases.

[0004] At present, the drainage tubes on the market are silicone hoses, generally straight tubes with a consistent diameter. After the drainage tube is implanted, to prevent the problem of drainage tube detachment, the prior art uses fixing components such as air bags or pressing plates to tighten the drainage tube in the front and back of the thoracic skin layer. However, there are the following problems: Thoracic drainage tubes often need to be indwelled for several days or even a long time according to different conditions. After the drainage tube is installed, the wound and the surrounding skin need to be cared for. Medical staff regularly disinfect with alcohol or iodine, which can effectively prevent local infection. However, after the prior art installs the fixing components for the thoracic drainage tube, the fixing device is closely attached to the skin, which is inconvenient for wound care. Even the outer fixing components need to be removed. When removing, it often touches the drainage tube and then touches the wound, increasing the pain of the patient and the workload of medical staff. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the defects existing in the prior art and provide a thoracic drainage tube to avoid the problems that it is inconvenient to care for the wound after the patient installs the fixing components, and even the fixing components need to be disassembled, increasing the pain of the patient and the workload of medical staff.

[0006] The specific technical solution is as follows:

[0007] A thoracic drainage tube, comprising: a drainage tube body and a fixing component, the fixing component is installed on the outer side of the drainage tube body, the fixing component includes an annular plate, the annular plate is provided with a channel hole for installing the drainage tube body, and the annular plate is located outside the skin, the annular plate is provided with a cavity for accommodating liquid medicine, a plurality of liquid outlets are circumferentially arranged at intervals on the annular plate close to the drainage tube body, and a liquid injection port is arranged on the surface of the annular plate, and the liquid injection port, the liquid outlet and the cavity are communicated with each other.

[0008] In one embodiment, the fixing component further includes an airbag and an air charging tube, the airbag is arranged on the outer side wall of the drainage tube body close to the insertion end; the air charging tube is installed in the drainage tube body, the air charging tube is communicated with the airbag, and the airbag is on one side of the annular plate close to the insertion end.

[0009] In one embodiment, the annular plate is an elastic annular plate, and a medical adhesive patch is arranged on the end face contacting the skin.

[0010] In one embodiment, a plurality of slot holes extending towards the channel hole are circumferentially arranged on the end face of the annular plate close to the human skin, the slot holes are used for accommodating absorbent cotton pads, and the width of the absorbent cotton pads is greater than the width of the slot holes.

[0011] In one embodiment, a pull rope is arranged on the end face of the absorbent cotton pad away from the insertion into the slot hole.

[0012] In one embodiment, the extending width of the slot hole gradually becomes smaller from the edge of the annular plate towards the drainage tube channel hole, and the absorbent cotton pad matches the shape of the slot hole.

[0013] In one embodiment, ventilation holes penetrating through the annular plate are spacedly arranged on the surface of the annular plate, and some of the ventilation holes are communicated with the slot holes.

[0014] The beneficial effects of the present utility model:

[0015] For the above-mentioned thoracic drainage tube, the annular plate in the fixing component is provided with a cavity for accommodating liquid medicine and a channel hole for the drainage tube to pass through, and a plurality of liquid outlets are circumferentially arranged at intervals on the annular plate close to the drainage tube body. When the wound needs to be cared for after the annular plate is fixed, liquid medicine is injected into the cavity, and the liquid medicine flows towards the periphery of the wound through the liquid outlets, so as to care for the wound. The wound can be cared for without removing the annular plate, which not only effectively prevents local infection, reduces the pain of the patient, but also reduces the workload of medical staff. Description of the Drawings

[0016] In order to more clearly illustrate the specific embodiments of the present utility model, the drawings required for use in the specific embodiments will be briefly introduced below. In all the drawings, the components or parts do not necessarily draw according to the actual proportion.

[0017] Figure 1 Schematic diagram of the thoracic drainage tube structure of the present utility model;

[0018] Figure 2 Schematic diagram of the bottom of the ring plate;

[0019] Figure 3 Schematic diagram of the top of the ring plate.

[0020] Reference numerals:

[0021] 1 - Drainage tube body, 11 - Insertion end, 111 - Drainage opening, 12 - Outlet end, 2 - Fixing assembly,

[0022] 21 Ring plate, 211 - Channel hole, 212 - Cavity, 213 - Liquid outlet, 214 - Liquid injection port, 215 - Slot hole, 216 - Ventilation hole, 217 - Medical adhesive patch, 22 - Airbag, 23 - Inflatable tube, 231 - Inflation port,

[0023] 24 - Absorbent cotton pad, 241 - Pull cord. Specific embodiments

[0024] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0025] Please refer to Figure 1 、 Figure 2 and Figure 3 , in one embodiment, a thoracic drainage tube includes: a drainage tube body 1 and a fixing assembly 2.

[0026] In one embodiment, the drainage tube body 1 is a soft silicone rubber tube. The drainage tube body 1 is provided with an insertion end 11 and an outlet end 12. The insertion end 11 is provided with a plurality of drainage openings 111, and the outlet end 12 is connected to a drainage bottle. The insertion end 11 of the drainage tube body 1 is inserted into the thoracic cavity, and the effusion in the thoracic cavity can flow into the drainage tube body 1 through the drainage openings 111 and be stored in the drainage bottle through the outlet end 12. Setting a plurality of drainage openings 111 is beneficial to quickly drain the liquid that needs to be drained around the insertion end 11.

[0027] In one embodiment, the fixing assembly 2 is installed on the outer side of the drainage tube body 1 to clamp the chest wall of the patient therein, thereby playing a role in fixing the drainage tube body 1 and avoiding the movement of the drainage tube body 1, increasing the safety and comfort during use.

[0028] Specifically, the fixing component 2 includes an annular plate 21, an airbag 22 and an inflation tube 23. The airbag 22 is fixedly installed on the outer side of the drainage tube body 1 near the insertion end 11; the inflation tube 23 is installed in the inner cavity of the drainage tube body 1. One end of the inflation tube 23 is communicated with the airbag 22, and the other end of the inflation tube 23 is exposed outside the drainage tube body 1. An inflation port 231 is provided at the port, and a first sealing cover is provided at the inflation port 231. The first sealing cover can be opened to be connected with an external air compressor. After inflation, the airbag 22 inflates and expands. The size of the airbag 22 should not be too large, just slightly larger than the outer diameter of the drainage tube body 1, so as to avoid the airbag 22 pressing on the internal organs of the patient.

[0029] A channel hole 211 through which the drainage tube body 1 passes is provided at the center of the annular plate 21. The annular plate 21 is installed on the outer side of the drainage tube body 1 and is located outside the skin. The annular plate 21 is provided with a cavity 212 for accommodating the liquid medicine. A plurality of liquid outlet holes 213 are circumferentially arranged on the annular plate 21 near the drainage tube body 1. The annular plate 21 is provided with a permeable layer, and the permeable layer is adhesively covered and installed on the inner wall of the cavity 212 and covers the liquid outlet holes 213. The permeable layer includes a layer of sponge, and the sponge is wrapped by non-woven fabric. A liquid injection port 214 is provided on the surface of the annular plate 21. The liquid injection port 214, the liquid outlet holes 213 and the cavity 212 communicate with each other. With this structure, the liquid medicine is injected into the cavity 212 from the liquid injection port 214. Due to the permeable layer, the cavity 212 can temporarily store the liquid medicine, and the liquid medicine slowly flows out through the liquid outlet holes 213. Through the fluidity of the liquid, the liquid medicine flows around the wound, thereby nursing the wound. A second sealing cover is provided at the liquid injection port 214. When needed, the second sealing cover is opened, and the liquid medicine can be injected from the liquid injection port 214 with a syringe.

[0030] Because the liquid medicine has fluidity, and there will often be exudate on the wound, and the exudate invades the skin, resulting in complications such as ulceration. In order to keep the wound and the surrounding skin dry, a plurality of slot holes 215 extending towards the channel hole 211 are circumferentially provided on the end face of the annular plate 21 close to the human skin. A liquid absorption cotton pad 24 is provided in the slot holes 215, and the liquid absorption cotton pad 24 is used to absorb the exudate and the liquid medicine. In order to facilitate molding and improve the water absorption capacity of the liquid absorption cotton pad 24, the outer layer of the liquid absorption cotton pad 24 is medical gauze, and the inner layer is filled with absorbent cotton.

[0031] On the basis of the above embodiment, in order to facilitate taking out the liquid absorption cotton pad 24 and replacing the liquid absorption cotton pad 24, a pull rope 241 is provided on the exposed end face of the liquid absorption cotton pad 24.

[0032] Based on the above embodiments, in order to enhance the liquid absorption capacity of the liquid absorption cotton pad 24, the extending width of the slot hole 215 gradually decreases from the edge of the annular plate 21 towards the channel hole 211, and its outer shape is trapezoidal. The liquid absorption cotton pad 24 matches the outer shape of the slot hole 215. To prevent the liquid absorption cotton pad 24 from falling off when placed in the slot hole 215, the width of the liquid absorption cotton pad 24 is greater than that of the slot hole 215. Before placement, due to the shrinkability of the liquid absorption cotton pad 24, the liquid absorption cotton pad 24 is compressed and stuffed into the slot hole 215. After the liquid absorption cotton pad 24 is placed, it slowly returns to its original size or expands after absorbing liquid, and the liquid absorption cotton pad 24 is in close contact with the inner wall of the slot hole 215, so that the liquid absorption cotton pad 24 is fixed in the slot hole 215 without falling off.

[0033] Based on the above embodiments, to improve the dryness of the skin under the annular plate 21, a plurality of air holes 216 penetrating the annular plate 21 are provided at intervals on the surface of the annular plate 21. Some of the air holes 216 communicate with the slot hole 215, and the air holes 216 do not communicate with the cavity 212.

[0034] Based on the above embodiments, in order to improve the comfort of the patient's use, the annular plate 21 is an elastic annular plate, such as made of rubber material. At the same time, in order to install the annular plate 21 on the skin without other assistance, the annular plate 21 can be fixed on the skin. A medical adhesive patch 217 is provided on the end face of the annular plate 21 in contact with the skin. A protective layer is provided on the end face of the medical adhesive patch 217 in contact with the skin, and the protective layer completely covers the adhesive surface of the medical adhesive patch 217. This protective layer can protect the medical adhesive patch 217 from losing its stickiness when not in use and being contaminated by various impurities such as dust. When in use, tear off the protective layer and paste the annular plate 21 on the skin.

[0035] Based on the above embodiments, for patients with different body types, it is necessary to adjust the distance between the annular plate 21 and the airbag 22 so that the distance between the annular plate 21 and the airbag 22 is suitable for the thickness of the chest wall skin layer. External threads are provided on the outer side wall of the drainage tube body 1 between the annular plate 21 and the airbag 22, and internal threads are provided in the channel hole 211. The annular plate 21 is screwed onto the outer side wall of the drainage tube body, and the distance between the annular plate 21 and the airbag 22 is adjusted by threaded connection. Since external threads are provided on the outer side wall of the drainage tube body 1, in order to prevent muscle nerve tissue from being stimulated when contacting the external threads and making the patient unbearable, a silicone rubber tube sleeve made of the same material as the drainage tube body 1 can be wrapped around the external threads.

[0036] During use, with the assistance of a visual device such as ultrasound, the drainage tube body 1 with the fixing component 2 is inserted into the wound, and the insertion end 11 is moved to a suitable position in the chest cavity. Then, the airbag 22 is inflated, the protective layer of the medical adhesive patch 217 is torn off, and the ring plate 21 is rotated until the ring plate 21 is pasted on the human skin, completing the operation of fixing the drainage tube body 1. The outlet end 12 is connected to the drainage bottle, and the absorbent cotton pad 24 is compressed and stuffed into the slot 215. When wound care is required, the medicinal liquid is injected into the cavity 212 through the liquid injection port 214. The cavity 212 can temporarily store the medicinal liquid, and the medicinal liquid slowly flows out through the liquid outlet 213. Due to the fluidity of the liquid, the medicinal liquid flows around the wound for care. The residual medicinal liquid is absorbed by the absorbent cotton pad 24, and the absorbent cotton pad 24 can be replaced irregularly according to the situation, which can keep the skin dry. During the whole operation process, the wound can be cared for without removing the ring plate 21, effectively preventing local infection, reducing the pain of the patient, and at the same time reducing the workload of medical staff.

[0037] In the above-mentioned thoracic drainage tube, the ring plate 21 of the fixing component 2 is provided with a cavity 212 for accommodating the medicinal liquid and a passage hole 211 for the drainage tube to pass through. A plurality of liquid outlets 213 are circumferentially arranged at intervals around the passage hole 211 on the ring plate 21. The liquid outlet 213 is provided with a permeable layer. When wound care is required, the medicinal liquid is injected into the cavity 212, and the medicinal liquid flows around the wound through the liquid outlet 213, so as to care for the wound. The wound can be cared for without removing the ring plate 21, reducing the pain of the patient, and at the same time reducing the workload of medical staff. At the same time, the ring plate 21 is provided with an absorbent cotton pad 24, a slot 215 and a ventilation hole 216 to keep the wound and the surrounding skin dry and effectively prevent local infection.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A chest drainage tube, characterized in that: include: A drainage tube body and a fixing component, wherein the fixing component is installed on the outside of the drainage tube body, the fixing component includes a ring plate, the ring plate is provided with a channel hole for installing the drainage tube body, and the ring plate is located on the outside of the skin, the ring plate is provided with a cavity for accommodating a medicinal solution, a plurality of liquid outlets are arranged on the ring plate at circumferential intervals near the drainage tube body, a liquid injection port is provided on the surface of the ring plate, and the liquid injection port and the liquid outlet are connected to the cavity.

2. The chest drainage tube according to claim 1, characterized in that: The fixing assembly also includes an airbag and an inflation tube. The airbag is arranged on the outer wall of the drainage tube body close to the insertion end; the inflation tube is installed in the drainage tube body, the inflation tube is connected to the airbag, and the airbag is on the side of the ring plate close to the insertion end.

3. The chest drainage tube according to claim 2, characterized in that: The ring plate is an elastic ring plate, and a medical adhesive patch is arranged on the end surface contacting the skin.

4. The chest drainage tube according to claim 3, characterized in that: The end surface of the ring plate close to the human skin is circumferentially provided with a plurality of slots extending toward the channel hole, the slots are used to accommodate a liquid-absorbing cotton pad, and the width of the liquid-absorbing cotton pad is greater than the width of the slots.

5. The chest drainage tube according to claim 4, characterized in that: The end surface of the liquid-absorbing cotton pad away from the slot hole is provided with a drawstring.

6. The chest drainage tube according to claim 5, characterized in that: The extending width of the slot hole from the edge of the ring plate to the drainage tube channel hole gradually decreases, and the absorbent cotton pad matches the shape of the slot hole.

7. The chest drainage tube according to claim 4, characterized in that: The surface of the ring plate is provided with ventilation holes penetrating the ring plate at intervals, and some of the ventilation holes are communicated with the slot holes.

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