Pericardium double-cavity drainage tube used after cardiac bypass surgery

Abstract

The utility model provides a pericardium double-cavity drainage tube used after heart bypass surgery, which comprises a plastic tube, a drainage tube, a drainage tube and a drainage tube, the plastic tube comprises a straight tube and an inclined tube in the length direction, and an acute angle is formed between the straight tube and the inclined tube; the plastic pipe is provided with a hollow double-cavity structure, the double-cavity structure comprises a drainage cavity and an eccentric hole cavity, the drainage cavity is not communicated with the interior of the eccentric hole cavity, and the drainage cavity extends to penetrate through the straight pipe and the inclined pipe; the eccentric hole cavity only extends to penetrate through the inclined pipe and does not extend to the straight pipe, an opening in one end of the eccentric hole cavity is located at an opening of the inclined pipe, and an opening in the other end of the eccentric hole cavity is located at the intersection position of the inclined pipe and the straight pipe.

Description

Technical Field

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

[0002] Drainage tubes are routinely used after surgical operations to drain out bleeding. Heart surgery is no exception and drainage tubes are also routinely used.

[0003] However, the special thing about heart surgery is that after coronary bypass surgery, there are often multiple lesions, and the blood vessels of the right coronary system must also be bypassed. In this way, there are anastomotic blood vessels on the lower wall of the heart. Conventionally, the pericardial drainage tube is placed on the lower wall of the heart. It is possible that during the heartbeat, the pericardial drainage tube and the anastomotic blood vessels collide with each other and trigger bleeding. This situation is the reason why postoperative bleeding causes secondary thoracotomy and even accidental death.

[0004] Therefore, it is expected to propose an easy-to-use double-lumen drainage tube that not only reduces the impact on vascular anastomosis after bypass surgery, but also does not affect the drainage of pericardial effusion, which is particularly practical. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a pericardial double-chamber drainage tube for post-cardiac bypass surgery in view of the above-mentioned defects in the prior art, which can not only reduce the impact on vascular anastomosis after bypass surgery, but also does not affect the drainage of pericardial oozing blood.

[0006] According to the utility model, a pericardial double-chamber drainage tube for use after heart bypass surgery is provided, comprising: a plastic tube, wherein the plastic tube comprises a straight tube and an oblique tube in the length direction, and an acute angle is formed between the straight tube and the oblique tube; the plastic tube has a hollow double-chamber structure, the double-chamber structure comprises a drainage chamber and an eccentric hole chamber, wherein the drainage chamber and the eccentric hole chamber are not connected inside, and the drainage chamber extends through the straight tube and the oblique tube; the eccentric hole chamber only extends through the oblique tube but not to the straight tube, one end opening of the eccentric hole chamber is at the opening of the oblique tube, and the other end opening of the eccentric hole chamber is at the position where the oblique tube intersects with the straight tube.

[0007] Preferably, the pericardial double-lumen drainage tube for post-cardiac bypass surgery according to the preferred embodiment of the utility model further comprises: a stainless steel wire, which is arranged in the eccentric hole of the oblique tube or embedded in the wall of the drainage cavity.

[0008] Preferably, the pericardial double-chamber drainage tube for post-cardiac bypass surgery according to the preferred embodiment of the utility model further includes: a three-way tube connected to the plastic tube, wherein the two ports of the three-way tube are respectively connected to the straight tube and the oblique tube.

[0009] Preferably, the stainless steel wire is a flexible stainless steel wire, that is, the stainless steel wire is a soft stainless steel wire.

[0010] Preferably, the angle between the straight tube and the inclined tube is 45 degrees.

[0011] And preferably, the length of the straight tube is between 1 cm and 3 cm, and the length of the oblique tube is between 8 cm and 10 cm.

[0012] Preferably, the diameter of the plastic tube is between 24.0 mm and 30.0 mm, and the diameter of the eccentric hole is between 12 mm and 15 mm.

[0013] Preferably, the diameter of the stainless steel wire 3 is between 0.35 mm and 1.90 mm.

[0014] Preferably, the length of the straight tube is 1 cm to 3 cm; the length of the oblique tube is between 8 cm and 10 cm.

[0015] Preferably, the straight tube wall has 2-4 side holes, and the inclined tube wall has 8-10 side holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] A more complete understanding of the present invention and its attendant advantages and features will be more readily obtained by reference to the following detailed description in conjunction with the accompanying drawings, in which:

[0017] Figure 1 The structure diagram of the pericardial double-chamber drainage tube used after heart bypass surgery according to the preferred embodiment of the utility model is schematically shown.

[0018] It should be noted that the drawings are used to illustrate the present invention, rather than to limit the present invention. Note that the drawings showing the structure may not be drawn to scale. In addition, in the drawings, the same or similar elements are marked with the same or similar reference numerals. DETAILED DESCRIPTION

[0019] In order to make the contents of the utility model clearer and easier to understand, the contents of the utility model are described in detail below in conjunction with specific embodiments and drawings.

[0020] Figure 1 The structure diagram of the pericardial double-chamber drainage tube used after heart bypass surgery according to the preferred embodiment of the utility model is schematically shown.

[0021] like Figure 1 As shown, according to a preferred embodiment of the utility model, the pericardial double-chamber drainage tube for post-cardiac bypass surgery comprises: a plastic tube, wherein the plastic tube comprises a straight tube 1 and an oblique tube 2 in the length direction, and an acute angle is formed between the straight tube 1 and the oblique tube 2.

[0022] The plastic tube has a hollow double-cavity structure, which includes a drainage cavity 3 and an eccentric hole cavity 4, wherein the drainage cavity 3 and the eccentric hole cavity 4 are not connected internally, and the drainage cavity 3 extends through the straight tube 1 and the inclined tube 2; the eccentric hole cavity 4 only extends through the inclined tube 2 but not to the straight tube 1, and an opening 5 at one end of the eccentric hole cavity 4 is at the opening of the inclined tube 2, and an opening 6 at the other end of the eccentric hole cavity 4 is at the position where the inclined tube 2 intersects with the straight tube 1.

[0023] Preferably, the straight tube 1 and the inclined tube 2 have side holes 7 .

[0024] Moreover, the pericardial double-chamber drainage tube for post-cardiac bypass surgery according to the preferred embodiment of the utility model further comprises: a stainless steel wire, which is arranged in the eccentric hole 4 of the oblique tube or embedded in the wall of the drainage cavity 3 .

[0025] In addition, preferably, the pericardial double-chamber drainage tube for post-cardiac bypass surgery according to the preferred embodiment of the utility model further includes: a three-way tube connected to the plastic tube, and the two ports of the three-way tube are respectively connected to the straight tube and the oblique tube.

[0026] Preferably, the stainless steel wire is a flexible stainless steel wire, that is, the stainless steel wire is a soft stainless steel wire.

[0027] Preferably, the angle between the straight tube and the oblique tube is 45 degrees. Also preferably, the length of the straight tube is between 1 cm and 3 cm, and the length of the oblique tube is between 8 cm and 10 cm; preferably, the straight tube has 2-4 side holes, and the oblique tube cavity wall has 8-10 side holes.

[0028] Preferably, the diameter of the plastic tube is between 24.0 mm and 30.0 mm, and the diameter of the eccentric hole is between 12 mm and 15 mm.

[0029] Preferably, the diameter of the stainless steel wire 3 is between 0.35 mm and 1.90 mm.

[0030] Preferably, the length of the straight tube is 1 cm to 3 cm; the length of the oblique tube is between 8 cm and 10 cm.

[0031] Preferably, the straight lumen wall has 2-4 side holes, and the oblique lumen wall has 8-10 side holes.

[0032] Specifically, the inventor of the utility model found that the current drainage tubes for heart surgery are rubber tubes and plastic tubes, but the rubber tubes or plastic tubes are stiff and hard or too soft, and are not easy to be shaped and fixed. They are easy to move with the beating of the heart, which can easily damage the myocardium, especially the right coronary vascular anastomosis on the lower wall of the heart after heart bypass surgery.

[0033] The pericardial double-chamber drainage tube for post-cardiac bypass surgery proposed by the utility model adopts a soft (i.e. flexible) plastic hollow tube (the plastic tube is flexible), with a single tube appearance at the head end, a double chamber inside the tube, and a double tube appearance at a 45-degree angle at the end, for example, a straight tube of 1-3 cm and an oblique tube of 8-10 cm. The straight tube is relatively short to avoid touching the vascular anastomosis of the lower wall of the heart, and the oblique tube is at a 45-degree angle with the straight tube and is long, which not only cannot avoid the vascular anastomosis of the lower wall of the heart, but also can play a role in drainage to make up for the short straight tube and insufficient drainage.

[0034] For example, the soft drainage tube maintains a 45-degree angle, with a total tube diameter of 24-30 mm, an inner straight tube diameter of 12-15 mm, a soft stainless steel wire inserted into the eccentric hole of the oblique tube, or a soft stainless steel wire embedded in the hollow tube wall, and the oblique tube is separated to become 18-24 mm in diameter, with holes at one end of the straight tube and the oblique tube hollow tube, and oblique holes on both sides of the straight tube and the oblique tube for easy blood suction. The other end is connected to a three-way tube, and the three-way branch can be used for air intake and fluid infusion at any time, which can clear the pipeline and prevent blood vessel blockage, solving the inconvenience and unsafety of the current simple straight tube.

[0035] 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.

[0036] It is understandable that, although the utility model has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the utility model. For any technician familiar with the art, without departing from the scope of the technical solution of the utility model, the above disclosed technical content can be used to make many possible changes and modifications to the technical solution of the utility model, or modified into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A pericardial double-chamber drainage tube for post-cardiac bypass surgery, characterized in that include: A plastic tube, wherein the plastic tube includes a straight tube and an oblique tube in the length direction, and an acute angle is formed between the straight tube and the oblique tube; the plastic tube has a hollow double-cavity structure, and the double-cavity structure includes a drainage cavity and an eccentric hole cavity, wherein the drainage cavity and the eccentric hole cavity are not connected inside, and the drainage cavity extends through the straight tube and the oblique tube; the eccentric hole cavity only extends through the oblique tube but not to the straight tube, and one end opening of the eccentric hole cavity is at the opening of the oblique tube, and the other end opening of the eccentric hole cavity is at the position where the oblique tube and the straight tube intersect.

2. The pericardial double-chamber drainage tube according to claim 1, characterized in that Also includes: The stainless steel wire is arranged in the eccentric hole cavity of the inclined tube or embedded in the cavity wall of the drainage cavity.

3. The pericardial double-chamber drainage tube according to claim 1 or 2, characterized in that Also includes: A tee pipe connected to the plastic pipe, wherein two ports of the tee pipe are respectively connected to a straight pipe and an inclined pipe.

4. The pericardial double-lumen drainage tube according to claim 2, characterized in that: Stainless steel wire is a flexible stainless steel wire.

5. The pericardial double-lumen drainage tube according to claim 1 or 2, characterized in that: The angle between the straight pipe and the inclined pipe is 45 degrees.

6. The pericardial double-lumen drainage tube according to claim 1 or 2, characterized in that: The length of the straight tube is between 1cm and 3cm, and the length of the oblique tube is between 8cm and 10cm.

7. The pericardial double-lumen drainage tube according to claim 1 or 2, characterized in that: The diameter of the plastic tube is between 24.0 mm and 30.0 mm, and the diameter of the eccentric hole cavity is between 12 mm and 15 mm.

8. The pericardial double-lumen drainage tube according to claim 2, characterized in that: The diameter of the stainless steel wire ranges from 0.35mm to 1.90mm.

9. The pericardial double-lumen drainage tube according to claim 1 or 2, characterized in that: The length of the straight tube is 1cm to 3cm; the length of the oblique tube is between 8cm and 10cm.

10. The pericardial double-lumen drainage tube according to claim 1 or 2, characterized in that: There are 2-4 side holes in the straight tube wall and 8-10 side holes in the inclined tube wall.

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