CN111701094A - A drainage tube device - Google Patents

Abstract

The invention relates to the technical field of medical devices, in particular to a drainage tube device, comprising a puncture needle, a guide wire, a syringe, a drainage tube, and further comprising: a negative pressure drainage device, which is used for attracting the liquid flow in the drainage tube; an inner sleeve , used for hemostasis and flushing the drainage tube to ensure the smooth flow of the drainage tube; the outer sleeve is used to pass through the guide wire for drainage; the drainage tube is a double-layer tube, which is divided into an inner tube and an outer tube. The invention designs a special pericardial effusion drainage device, the larger lumen of the drainage tube can ensure the patency of the drainage tube, and the circular design of the end of the drainage tube can improve the indwelling of the drainage tube in the body without stabbing the heart tissue; The outer wall has a hydrophilic coating design, which makes it easier for the drainage tube to be sent into the pericardial cavity; the matching negative pressure drainage device can keep the drainage tube flowing outside the body, so that the effusion can continue to flow out.

Description

A drainage tube device

technical field

The invention relates to the technical field of medical devices, in particular to a drainage tube device.

Background technique

Pericardial effusion refers to the accumulation of fluid in the pericardium and is a common clinical manifestation. In addition to the clinical manifestations of the primary disease, it is mainly the symptoms of cardiac tamponade caused by a large amount of effusion, mainly manifested as dyspnea, orthopnea, distended jugular veins, and paradoxical pulses. Acute or massive pericardial effusion can lead to cardiac tamponade, resulting in acute circulatory failure, which can lead to cardiac arrest and death. Pericardiocentesis and drainage can relieve the symptoms of pericardial effusion, and can extract the pericardial fluid for analysis to help diagnosis and treatment. It is the main method for clinical treatment of pericardial effusion.

Clinically, the existing pericardiocentesis and drainage mainly use two devices: one is central venous catheter drainage. For hemorrhagic pericardial effusion, the drainage tube is easily blocked and cannot be drained for a long time, resulting in poor drainage effect; the other is to use pig tail catheter for drainage. Although the catheter has a large lumen and is not suitable for obstruction, the tube is hard and the patient is painful. The feeling is heavy, and the length is too long (more than 1.0 meters), which is inconvenient for operation and indwelling. In addition, the material is not suitable for indwelling in the body for a long time. Both of the above two devices are not specially designed for pericardial drainage, and have defects in clinical use.

Therefore, it is very necessary to design a special pericardial effusion drainage device to meet the needs of clinical use.

SUMMARY OF THE INVENTION

The present invention breaks through the problems of the prior art, and designs a drainage tube device, which can be placed in the body safely, conveniently and comfortably, and can be left in the body for a long time without obstruction of the drainage tube.

In order to achieve the above purpose, the present invention designs a drainage tube device, which includes a puncture needle, a guide wire, a syringe, a guide sheath, a dilator, and a drainage tube, and is characterized in that: it also includes a negative pressure drainage device for suction and drainage. liquid flow in the tube;

The drainage tube is a double-layer tube, which is divided into an inner tube and an outer tube, and the inner tube is used for hemostasis and flushing the drainage tube to ensure the drainage tube is unobstructed;

The outer tube is used to pass through the guide wire for drainage;

One end of the outer tube away from the negative pressure drainage device is provided with an end hole and several side holes.

Further, one end of the drainage tube away from the negative pressure drainage device is in the shape of a circle.

Further, the inner tube is tightly sleeved in the outer tube lumen, the end of the inner tube away from the negative pressure drainage device is located in the outer tube lumen but does not cover the side hole, and the end of the inner tube close to the negative pressure drainage device extends out of the outer tube lumen. .

Further, the outer wall of the outer tube is coated with a hydrophilic coating.

Further, a hemostatic valve and a flushing tube are provided at one end of the inner tube close to the negative pressure drainage device.

Further, the negative pressure drainage device includes a drainage bag, a negative pressure ball, and a three-way connector.

Further, the first nozzle of the three-way connector is communicated with the drainage tube, the second nozzle is communicated with the drainage bag, and the third nozzle is communicated with an external flushing device for flushing the drainage tube.

Further, the three-way connector is provided with a cock, and rotating the cock can make any two nozzles communicate, and the other nozzle is closed.

Further, the negative pressure ball is communicated with the drainage bag, and by deflating the negative pressure ball, the drainage bag can jointly generate negative pressure, thereby maintaining the power of the drainage tube to flow outside the body.

Correspondingly, the introducer sheath and dilator are similar to the clinically used arterial sheath. The introducer sheath is a tubular design, the dilator matches the introducer sheath, the introducer sheath can be inserted into the dilator and enter the patient's body, the introducer sheath has a hollow structure, the lumen can pass through the guide wire, and the end of the introducer sheath is conical, Facilitates the delivery of the dilating sheath into the pericardial cavity through the tissue.

Compared with the prior art, the present invention designs a special drainage device for pericardial effusion, the larger lumen of the drainage tube can ensure the patency of the drainage tube, and the circular design of the end of the drainage tube can improve the durability of the drainage tube indwelling in the body. It will stab the heart tissue; the outer wall of the tube is designed with a hydrophilic coating, which makes the drainage tube easier to send into the pericardial cavity; the matching negative pressure drainage device can keep the drainage tube flowing outside the body, so that the effusion can continue to flow out .

Description of drawings

FIG. 1 is a schematic structural diagram of a drainage tube device according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a drainage tube in a drainage tube device according to an embodiment of the present invention.

FIG. 3 is an enlarged partial cross-sectional view of part A of a drainage tube in a drainage tube device according to an embodiment of the present invention.

4 is an enlarged view of an end of a drainage tube in a drainage tube device according to an embodiment of the present invention.

Among them, 1 is a drainage tube, 2 is a negative pressure drainage device, 1-1 is an inner tube, 1-2 is an outer tube, 1-2-1 is an end hole, 1-2-2 is a side hole, and 2-1 is a Drainage bag, 2-2 is a negative pressure ball, 2-3 is a three-way connector.

Detailed ways

The present invention is further described below in conjunction with the accompanying drawings, but is not intended to limit the present invention.

1 and 2, in a specific embodiment of the present invention, a puncture needle, a guide wire, a syringe, an introducer sheath and a dilator, a drainage tube 1 are designed, and a negative pressure drainage device 2 is designed for Suction the liquid flow in the drainage tube 1;

The drainage tube 1 is a double-layer tube, which is divided into an inner tube 1-1 and an outer tube 1-2, and the inner tube 1-1 is used for hemostasis and flushing the drainage tube 1 to ensure that the drainage tube 1 is unobstructed;

The outer tube 1-2 is used to pass through the guide wire for drainage;

An end hole 1-2-1 and a plurality of side holes 1-2-2 are provided at one end of the outer tube 1-2 away from the negative pressure drainage device 2 .

In a specific implementation, the drainage negative pressure device includes a drainage bag 2-1, a negative pressure ball 2-2, and a three-way connector 2-3. Two communication holes are opened above the drainage bag 2-1, and one is connected to the negative pressure ball 2-1. -2 is connected. By pressing the negative pressure ball 2-2, the drainage bag 2-1 can jointly generate negative pressure, so as to maintain the power of the drainage tube 1 to flow outside the body, and the other is connected to the second tube of the tee connector 2-3. The first nozzle of the three-way connector 2-3 communicates with the drainage tube 1, and the third nozzle of the three-way connector 2-3 can be communicated with an external flushing device for flushing the drainage tube 1.

Preferably, the three-way connector 2-3 is provided with a cock, and rotating the cock can connect any two orifices, and the other orifice is closed, thereby completing drainage or cleaning.

Preferably, the end of the outer tube 1-2 away from the negative pressure drainage device 2 is provided with an end hole 1-2-1 and 4-10 side holes 1-2-2, so that the liquid inlet is not easily blocked completely during drainage.

Preferably, one end of the drainage tube 1 away from the negative pressure drainage device 2 is circular, which can avoid damage to the tissue in the pericardial cavity.

Preferably, the inner tube 1-1 is tightly sleeved in the lumen of the outer tube 1-2, and the end of the inner tube 1-1 inserted into the outer tube 1-2 must not cover the side hole 1-2-2 on the outer tube 1-2, In order to prevent the wall of the inner tube 1-1 from blocking the side hole 1-2-2, resulting in blockage of drainage.

The other end of the inner tube 1-1 extends out of the outer tube 1-2, on which a hemostatic valve and a flushing tube are arranged.

When the drainage tube 1 is blocked, the inner tube 1-1 can be pulled out, the inner tube 1-1 can be flushed outside the body or a new inner tube 1-1 can be replaced, and then the inner tube 1-1 can be inserted into the outer tube 1-2 for re-drainage body fluids, to avoid the necessity of completely removing the drainage tube 1 when the drainage tube 1 is blocked.

Preferably, the outer wall of the outer tube 1-2 is coated with a hydrophilic coating, so that it can be smoothly inserted into the tissue and sent into the pericardial cavity.

Correspondingly, the introducer sheath and dilator are similar to the arterial sheath used in clinic, the introducer sheath is of tubular design, the dilator is matched with the introducer sheath, the introducer sheath is hollow, the lumen can pass through the guide wire, and the introducer sheath The end is conical, which facilitates the delivery of the dilating sheath through the tissue into the pericardial cavity.

In a specific implementation, the used guide wire, thoracentesis needle, and vacuum syringe may be commonly used clinical instruments, which can be directly purchased from the market.

Preferably, the length of the drainage tube 1 is 40-60cm, the inner diameter of the inner tube 1-1 is 1.0-1.5mm, and the inner diameter of the outer tube 1-2 is 2.0-3.0mm, so that the inner tube 1-1 can be smoothly inserted into the In the outer tube 1-2, in specific use, follow the steps below:

S1. Use a puncture needle to puncture the pericardial cavity from the precordial area or subxiphoid process;

S2. Feed the guide wire and withdraw the puncture needle;

S3. Feed the dilator and the introducer sheath from the guide wire;

S4. Exit the dilator, and send the drainage tube 1 along the guide wire from the guide sheath into the pericardial cavity;

S5. Connect the drainage tube 1 and the negative pressure drainage device 2 to realize continuous negative pressure drainage;

S6. Use an applicator and other objects to fix the drainage tube 1 on the skin in front of the chest.

If the drainage tube 1 is blocked, the drainage tube 1 and the negative pressure drainage device 2 can be separated first, then the inner tube 1-1 sheathed in the outer tube 1-2 of the drainage tube 1 can be pulled out, and the inner tube 1-1 can be flushed in vitro or Replace the inner tube 1-1, then insert the inner tube 1-1 into the outer tube 1-2, and connect the negative pressure drainage device 2.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the method of the present invention, several improvements and supplements can be made, and these improvements and supplements should also be regarded as It is the protection scope of the present invention.

Claims (9)

1. a drainage tube device, comprising a puncture needle, a guide wire, a syringe, a guiding sheath and a dilator, a drainage tube (1), characterized in that: also comprising: a negative pressure drainage device (2) for attracting a drainage tube (1) Liquid flow within; The drainage tube (1) is a double-layer tube, which is divided into an inner tube (1-1) and an outer tube (1-2); An end hole (1-2-1) and a plurality of side holes (1-2-2) are provided at one end of the outer tube (1-2) away from the negative pressure drainage device (2). 2 . The drainage tube device according to claim 1 , characterized in that: one end of the drainage tube ( 1 ) away from the negative pressure drainage device ( 2 ) is circular. 3 . 3. A drainage tube device according to claim 1, characterized in that: the inner tube (1-1) is tightly sleeved in the lumen of the outer tube (1-2), and the inner tube (1-1) is far away from One end of the negative pressure drainage device (2) is located in the lumen of the outer tube (1-2) but does not cover the side hole (1-2-2), and the inner tube (1-1) is close to one end of the negative pressure drainage device (2) Then the lumen of the outer tube (1-2) is extended. 4. A drainage tube device according to claim 3, characterized in that: the outer wall of the outer tube (1-2) is coated with a hydrophilic coating. 5 . The drainage tube device according to claim 3 , wherein a hemostatic valve and a flushing tube are provided at one end of the inner tube ( 1 - 1 ) close to the negative pressure drainage device ( 2 ). 6 . 6. A drainage tube device according to claim 1, characterized in that: the negative pressure drainage device (2) comprises a drainage bag (2-1), a negative pressure ball (2-2), a three-way connector (2-3). 7. A drainage tube device according to claim 6, characterized in that: the first nozzle of the three-way connector (2-3) is communicated with the drainage tube (1), and the second nozzle is connected with the drainage bag (2-1) is communicated, and the third nozzle is communicated with an external flushing device for flushing the drainage tube (1). 8. A drainage tube device according to claim 7, characterized in that: the three-way connector (2-3) is provided with a cock, and the rotating cock can make any two nozzles communicate, and the other nozzle closure. 9. A drainage tube device according to claim 6, characterized in that: the negative pressure ball (2-2) is communicated with the drainage bag (2-1), and the negative pressure ball (2-2) is compressed by deflating the negative pressure ball (2-2). The drainage bag (2-1) can be made to jointly generate negative pressure, so as to maintain the power of the drainage tube (1) to flow outside the body.

Images