Pericardium mediastinum double-cavity drainage tube used after cardiac surgery

Abstract

The utility model provides a pericardium mediastinum double-cavity drainage tube used after a cardiac surgery. The pericardium mediastinum double-cavity drainage tube comprises a flexible plastic straight tube and a flexible plastic inclined tube, the flexible plastic straight pipe is of a double-cavity structure, an eccentric hole cavity is formed in a cavity penetrating through the flexible plastic straight pipe, the cavity is not communicated with the interior of the eccentric hole cavity, and the eccentric hole cavity extends to a side wall opening of the flexible plastic straight pipe from the first end of the flexible plastic straight pipe. The flexible plastic inclined pipe is connected with the flexible plastic straight pipe through the side wall opening.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a pericardial and mediastinal double-lumen drainage tube used after cardiac surgery. Background Art

[0002] Drains are routinely used after surgical procedures to drain out bleeding. Heart surgery is no exception and requires routine use of drainage tubes.

[0003] However, cardiac surgery is unique in that two drainage tubes are routinely placed afterward: a thicker mediastinal tube and a thinner pericardial tube. This requires two incisions in the skin to allow access to the two drainage tubes. It's well known that pericardial tubes are less effective than mediastinal tubes, which are often more effective. Therefore, mediastinal tubes are typically thicker, while pericardial tubes are typically thinner.

[0004] However, the existing combination of a thick mediastinal tube and a thin pericardial tube has the disadvantage that there will always be two holes in the patient's skin, and the more holes there are, the greater the damage to the patient's body. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a double-chamber pericardial and mediastinal drainage tube that can reduce damage and is easy to use in response to the above-mentioned defects in the existing technology. It not only ensures the drainage function after cardiac surgery, but also reduces the damage of a drainage hole on the skin, which is particularly practical.

[0006] According to the utility model, a pericardial and mediastinal double-cavity drainage tube for postoperative cardiac surgery is provided, comprising: a flexible plastic straight tube and a flexible plastic oblique tube; wherein the flexible plastic straight tube has a double-cavity structure, wherein an eccentric hole is formed in a cavity passing through the flexible plastic straight tube, the cavity is not connected to the interior of the eccentric hole, and the eccentric hole extends from the first end of the flexible plastic straight tube to the side wall opening of the flexible plastic straight tube; the flexible plastic oblique tube is connected to the flexible plastic straight tube through the side wall opening.

[0007] Preferably, the flexible plastic straight tube and the flexible plastic inclined tube form an angle of 60 degrees.

[0008] Preferably, the distance between the side wall opening and the first end is half the distance between the side wall opening and the second end.

[0009] Preferably, the diameter of the eccentric bore is half the diameter of the cavity.

[0010] Preferably, the diameter of the flexible plastic inclined tube is half the diameter of the cavity.

[0011] Preferably, the length of the flexible plastic straight tube is 3 to 6 times the length of the flexible plastic oblique tube.

[0012] Preferably, the flexible plastic inclined tube has side holes on its side wall.

[0013] Preferably, a side hole is provided on the side wall of the section of the flexible plastic straight tube close to the second end.

[0014] For example, there are 2-4 side holes on the side wall of the flexible plastic inclined tube, and there are 8-10 side holes on the side wall of the section of the flexible plastic straight tube close to the second end.

[0015] Moreover, according to the preferred embodiment of the present invention, the pericardial double-chamber drainage tube for post-cardiac bypass surgery also includes: a flexible stainless steel wire, which is embedded in the cavity wall of the eccentric hole and / or embedded in the cavity wall and / or embedded in the cavity wall of the flexible plastic oblique tube.

[0016] In addition, preferably, the pericardial double-chamber drainage tube for post-cardiac bypass surgery according to the preferred embodiment of the present invention also includes a three-way tube, wherein the two ports of the three-way tube are respectively connected to a flexible plastic straight tube and a flexible plastic oblique tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] A more complete understanding of the present invention and its attendant advantages and features will be more readily appreciated by reference to the following detailed description taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 The structure diagram of the pericardial and mediastinal double-lumen drainage tube for post-cardiac surgery according to a preferred embodiment of the present invention is schematically shown.

[0019] It should be noted that the accompanying drawings are intended to illustrate the present invention, not to limit it. Note that the accompanying drawings showing structures may not be drawn to scale. Furthermore, in the accompanying drawings, identical or similar components are labeled with identical or similar reference numerals. DETAILED DESCRIPTION

[0020] In order to make the contents of the present invention clearer and easier to understand, the contents of the present invention are described in detail below with reference to specific embodiments and drawings.

[0021] Figure 1 The structure diagram of the pericardial and mediastinal double-lumen drainage tube for post-cardiac surgery according to a preferred embodiment of the present invention is schematically shown.

[0022] like Figure 1As shown, according to a preferred embodiment of the present invention, a pericardial and mediastinal double-lumen drainage tube for postoperative cardiac surgery includes: a flexible plastic straight tube 1 and a flexible plastic oblique tube 2; wherein the flexible plastic straight tube 1 has a double-lumen structure, wherein an eccentric hole 4 is formed in a cavity 3 passing through the flexible plastic straight tube 1, and the cavity 3 is not connected to the inside of the eccentric hole 4, and the eccentric hole 4 extends from the first end 5 of the flexible plastic straight tube 1 to the side wall opening 6 of the flexible plastic straight tube 1; the flexible plastic oblique tube 2 is connected to the flexible plastic straight tube 1 through the side wall opening 6.

[0023] Preferably, the flexible plastic straight tube 1 and the flexible plastic oblique tube 2 are formed in one piece, and the connection between the flexible plastic straight tube 1 and the flexible plastic oblique tube 2 is a fixed connection.

[0024] Preferably, the flexible plastic straight tube 1 and the flexible plastic oblique tube 2 form an angle of 60 degrees.

[0025] Preferably, the distance between the side wall opening 6 and the first end 5 is half the distance between the side wall opening 6 and the second end 7. In other words, the flexible plastic inclined tube 2 is attached at approximately one third of the extended length of the flexible plastic straight tube 1.

[0026] Preferably, the diameter of the eccentric bore 4 is half the diameter of the cavity 3 .

[0027] Preferably, the diameter of the flexible plastic inclined tube 2 is half the diameter of the cavity 3 .

[0028] Preferably, the length of the flexible plastic straight tube 1 is 3 to 6 times the length of the flexible plastic oblique tube 2 .

[0029] Preferably, the flexible plastic inclined tube 2 has a side hole 8 on its side wall.

[0030] Preferably, a side hole 8 is provided on the side wall of the section of the flexible plastic straight tube 1 close to the second end 7 .

[0031] For example, there are 2-4 side holes on the side wall of the flexible plastic inclined tube, and there are 8-10 side holes on the side wall of the section of the flexible plastic straight tube 1 close to the second end 7 .

[0032] Moreover, according to the preferred embodiment of the present invention, the pericardial double-chamber drainage tube for post-cardiac bypass surgery also includes: a flexible stainless steel wire, which is embedded in the wall of the eccentric hole 4 and / or embedded in the wall of the cavity 3 and / or embedded in the wall of the flexible plastic oblique tube 2.

[0033] In addition, preferably, the pericardial double-chamber drainage tube for post-cardiac bypass surgery according to the preferred embodiment of the present invention also includes a three-way tube, wherein the two ports of the three-way tube are respectively connected to the flexible plastic straight tube 1 and the flexible plastic oblique tube 2.

[0034] Specifically, the inventors of the present invention have advantageously discovered that the current cardiac surgery drainage tubes include rubber tubes and plastic tubes, but the rubber tubes or plastic tubes are rigid and hard or too soft, and are not easy to be fixed and are easy to move with the heart beating.

[0035] For example, a specific embodiment of the present invention utilizes a soft (i.e., flexible) hollow plastic tube. The first end appears as a single tube with a dual lumen, while the second end appears as a double tube at a sharp angle. The shorter, oblique tube is 3-5 cm long, while the longer, straight tube is 15-18 cm long. The oblique tube and the straight tube form a 60-degree angle, perfectly separating the pericardial and mediastinal drainage tubes. The entire drainage tube, including the straight and oblique tubes, is lined with soft stainless steel wire throughout its entire length, making it easy to fix and shape. Furthermore, the tube is integrated, less prone to breakage, and easily removed after surgery.

[0036] For example, the flexible drainage tube maintains a 60-degree angle, with a main tube diameter of 24-30 mm and an inner straight tube diameter of 12-15 mm. Soft stainless steel wire is inserted into the eccentric holes of the straight and oblique tubes, or embedded in the hollow tube wall. The inner tube is an oblique tube, branching from the main tube to become a 12-15 mm diameter. The main tube continues the straight tube, with a diameter of 18-24 mm. The straight and oblique tubes have holes at one end and oblique holes on both sides to facilitate blood suction. The other end can be connected to a three-way pipe, which allows for air and fluid intake at any time, dredging the pipe and preventing blood vessel blockage, thus overcoming the inconvenience and unsafety of current simple straight tubes.

[0037] For example, in a specific embodiment, the diameter of the flexible plastic straight tube 1 is 24.0-30.0 mm, the diameter of the eccentric hole is 12-15 mm, and there is a soft stainless steel wire in the eccentric hole with a diameter of 0.35-1.90 mm. One end of the plastic tube is sealed into a hemispherical shape at a 60-degree angle, and is divided into a straight tube with an inclination of 3-5 cm and a straight tube length of 15-18 cm. This end is used for drainage, the inclined tube has 2-4 side holes, and the straight tube cavity wall has 8-10 side holes.

[0038] Therefore, the utility model provides a double-chamber pericardial and mediastinal drainage tube that can reduce damage and is easy to use. It not only ensures the drainage function after cardiac surgery, but also reduces the damage of a drainage hole on the skin, which is particularly practical.

[0039] In addition, it should be noted that, unless otherwise specified, the terms "first", "second", "third", etc. in the specification are only used to distinguish the various components, elements, steps, etc. in the specification, and are not used to indicate the logical relationship or sequential relationship between the various components, elements, steps, etc.

[0040] It is understood that although the present invention has been disclosed above with reference to preferred embodiments, the above embodiments are not intended to limit the present invention. Any person skilled in the art can utilize the above-disclosed technical content to make many possible changes and modifications to the present invention without departing from the scope of the present invention, or to modify the present invention into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention are still within the scope of protection of the present invention.

Claims

1. A pericardial and mediastinal double-lumen drainage tube for postoperative cardiac surgery, characterized in that include: An integrally formed flexible plastic straight tube and a flexible plastic inclined tube; The flexible plastic straight tube has a dual-cavity structure, wherein an eccentric hole is formed in a cavity that passes through the flexible plastic straight tube, the cavity is not connected to the interior of the eccentric hole, and the eccentric hole extends from a first end of the flexible plastic straight tube to an opening in a side wall of the flexible plastic straight tube; The flexible plastic oblique tube is connected to the flexible plastic straight tube through a side wall opening; wherein flexible stainless steel wires are embedded in the cavity walls of the flexible plastic straight tube and the flexible plastic oblique tube; and a 60-degree angle is formed between the flexible plastic straight tube and the flexible plastic oblique tube.

2. The pericardial and mediastinal double-lumen drainage tube according to claim 1, characterized in that: The distance between the side wall opening and the first end is half the distance between the side wall opening and the second end.

3. The pericardial and mediastinal double-lumen drainage tube according to claim 1 or 2, characterized in that: The diameter of the eccentric bore is half the diameter of the cavity.

4. The pericardial and mediastinal double-lumen drainage tube according to claim 1 or 2, characterized in that: The diameter of the flexible plastic inclined tube is half the diameter of the cavity.

5. The pericardial and mediastinal double-lumen drainage tube according to claim 1 or 2, characterized in that: The length of the flexible plastic straight tube is 3 to 6 times the length of the flexible plastic inclined tube.

6. The pericardial and mediastinal double-lumen drainage tube according to claim 1 or 2, characterized in that: The side wall of the flexible plastic inclined tube is provided with a side hole.

7. The pericardial and mediastinal double-lumen drainage tube according to claim 1 or 2, characterized in that: A side hole is formed on the side wall of a section of the flexible plastic straight tube close to the second end.

8. The pericardial and mediastinal double-lumen drainage tube according to claim 1 or 2, characterized in that It also includes a tee pipe, wherein two ports of the tee pipe are respectively connected to a flexible plastic straight pipe and a flexible plastic inclined pipe.

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