CN210277939U

CN210277939U - Medical drainage tube assembly

Info

Publication number: CN210277939U
Application number: CN201920525440.7U
Authority: CN
Inventors: 何小卫
Original assignee: Nanjing First Hospital
Current assignee: Nanjing First Hospital
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-04-10
Anticipated expiration: 2029-04-18

Abstract

The utility model discloses a medical drainage tube component, which comprises a drainage tube, a guide wire, a puncture outfit and an expander. The drainage tube is a tube body made of medical plastics, the outer diameter of the drainage tube is 3.0-4.2 mm, and the inner diameter of the drainage tube is 2.6-3.8 mm. The tube body at the end of the drainage tube head is provided with a plurality of lateral drainage holes. The end surface of the head end of the drainage tube is a bevel, so that the head end of the drainage tube has a tip. The drainage tube of the utility model is just suitable for the drainage of hydrops in the body of a patient who has not done an operation, is not easy to block and has small wound to the patient. The whole drainage tube is made of polytetrafluoroethylene, so that the drainage tube is not easy to block.

Description

Medical drainage tube assembly

Technical Field

The utility model relates to a medical drainage tube related apparatus.

Background

The medical drainage tube is used for draining effusion in a patient body to the outside of the body. In the prior art, the diameter of the drainage tube is generally about 10 mm. A drain of this size is most suitable for patients who have undergone laparoscopic minimally invasive surgery. Because the size of the wound of the endoscopic minimally invasive surgery is almost 10 mm, the size of the wound is matched with that of the drainage tube. The drainage tube can be directly inserted into the human body through the wound of the endoscopic minimally invasive surgery. But this size of drain is too large for an inoperable patient. The insertion of a 10 mm diameter catheter into the body requires a 10 mm wound to be made on the patient, which is too harmful to the patient. For this reason, hospital doctors often replace the tubes with tubes specifically designed for insertion into blood vessels, which have a maximum diameter of only 1.7 mm, and are used for drainage of fluid accumulation in the body, which is prone to clogging problems.

Disclosure of Invention

The utility model discloses the problem that will solve: when the effusion in the body of a patient is drained without an operation, the diameter of a common drainage tube of 10 mm is too large, the wound of the patient is too large, and the problem of blockage is easily caused by the fact that a tube specially used for inserting a blood vessel is too small in diameter.

In order to solve the above problem, the utility model discloses a scheme as follows:

a medical drainage tube assembly comprising a drainage tube; the drainage tube is a tube body made of medical plastics, the outer diameter of the drainage tube is 3.0-4.2 mm, and the inner diameter of the drainage tube is 2.6-3.8 mm; the tube body at the end of the drainage tube head is provided with a plurality of lateral drainage holes; the end surface of the head end of the drainage tube is a bevel, so that the head end of the drainage tube has a tip.

Further, the device also comprises a guide wire; the guide wire is made of metal or alloy, has the diameter of 1.0-1.8 mm and can penetrate through the lumen of the drainage tube.

Further, the puncture outfit is also included; the puncture outfit is provided with a puncture needle for puncturing the human body and leading the guide wire to penetrate into the human body through the needle cavity of the puncture needle.

Further, the device also comprises an expander; the dilator is used for dilating the wound formed after puncture along the guide wire after puncture by the puncture outfit, so that the drainage tube can conveniently penetrate through the dilated wound.

Further, the dilator comprises a main tube, a tip part and a clamping part; the tip part and the clamping part are respectively positioned at two ends of the main body pipe; a guide hole is formed in the center of a structure composed of the main tube, the tip portion and the retaining portion along the axial direction.

Further, the whole of the drainage tube is made of polytetrafluoroethylene.

The technical effects of the utility model are as follows:

1. the drainage tube with the outer diameter of 3.0-4.0 mm and the inner diameter of 2.6-3.6 mm is just suitable for drainage of hydrops in a patient who has not been operated, the drainage tube is not easy to block under the size, and the wound of the patient is far smaller than a common drainage tube with the diameter of 10 mm.

2. The whole drainage tube is made of polytetrafluoroethylene, and the drainage tube is not easy to block due to the non-stick property caused by the low friction coefficient and the hydrophobicity of the polytetrafluoroethylene.

3. The drainage tube, the puncture outfit, the guide wire and the dilator form a complete hydrops drainage medical appliance.

Drawings

Fig. 1 is a schematic structural view of a drainage tube and a guide wire according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an expander according to an embodiment of the present invention.

Wherein, 1 is a drainage tube, 2 is a guide wire, 11 is a lateral drainage hole, 12 is an inclined plane, and 13 is a tip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, a medical drainage tube assembly comprises a drainage tube 1, a guide wire 2, a puncture outfit and a dilator.

The drainage tube 1 is a tube body made of medical plastics, and the outer diameter of the drainage tube is 3.0-4.2 mm, and the inner diameter of the drainage tube is 2.6-3.8 mm. The body at the head end of the drainage tube 1 is provided with a plurality of lateral drainage holes 11. The head end of the drainage tube 1 is one end which is put into the human body. The end surface of the head end of the draft tube 1 is beveled 12 so that the head end of the draft tube 1 has a pointed end 13. In this embodiment, the whole drainage tube 1 is made of polytetrafluoroethylene, the outer diameter is 3.60 mm, the inner diameter is 2.90 mm, and the wall thickness of the tube is 0.35 mm.

The guide wire 2 can penetrate through the lumen of the drainage tube 1 and is used for guiding when the drainage tube 1 is inserted into a human body, and the guide wire is made of metal or alloy with moderate hardness and diameter of 1.0-1.8 mm.

The puncture outfit is provided with a puncture needle for puncturing the human body and leading the guide wire 2 to penetrate into the human body through the needle cavity of the puncture needle. In this embodiment, the puncture device is realized by a syringe. The puncture outfit of the embodiment is obtained by changing the injection needle at the front end of the injector into a puncture needle. The structure of the syringe and needle is well known to those skilled in the art and will not be described in detail herein.

The dilator is used for dilating the wound formed after puncture along the guide wire after puncture by the puncture outfit, so that the drainage tube 1 can conveniently pass through the dilated wound. In this embodiment, the dilator has a structure as shown in fig. 2, and includes a main tube 31, a tip portion 32, and a stopper portion 34. The tip portion 32 and the stopper portion 34 are respectively located at both ends of the main body tube 31. A guide hole 33 is provided along the axial direction in the center of the structure composed of the main body tube 31, the tip portion 32, and the retaining portion 34. The diameter of the main body tube 31 is 5.0 to 6.0 mm, and the diameter of the guide hole 33 is 1.2 to 2.0 mm. The diameter of the positioning portion 34 is 8.0-20.0 mm. The dilator may be made of rigid plastic, or may be made of metal or alloy.

The medical drainage tube assembly of the present embodiment is used in a surgical procedure as follows:

firstly, puncturing by using a puncture outfit, for example, puncturing the abdomen of a human body, then inserting the guide wire 2 into the abdomen of the human body along a needle hole of the puncture outfit, pulling out the puncture outfit, and then, penetrating one end of the guide wire into the abdomen of the human body and leaving the other end outside the human body; then, the guide wire 2 is passed through the guide hole 33 of the dilator, and the wound formed after the puncture is dilated by the dilator, and when the wound is dilated by the dilator, the guide wire 2 is held in the guide hole 33 of the dilator, and the dilator is moved back and forth along the guide wire 2 to dilate the wound formed after the puncture. The clamping part 34 of the dilator is used for being clamped outside the human body when the dilator is operated back and forth, so that the dilator is prevented from being wholly immersed into the tissues of the human body and cannot be taken out. After the dilated wound of the dilator is large enough, the dilator is pulled out, then the drainage tube 1 is penetrated into the human body along the guide wire 2, and finally the guide wire is pulled out.

It should be pointed out that the drainage tube 1, the guide wire 2, the puncture outfit and the dilator in the medical drainage tube component are mutually matched to form a set of complete hydrops drainage medical appliance which is a disposable medical consumable. When the manufacturer sells the drainage tube 1, the guide wire 2, the puncture outfit and the dilator are aseptically packaged and then sold as a whole.

Claims

1. A medical drainage tube component is characterized by comprising a drainage tube (1), a guide wire (2), a puncture outfit and a dilator; the drainage tube (1) is a tube body made of medical plastics, the outer diameter of the drainage tube is 3.0-4.2 mm, and the inner diameter of the drainage tube is 2.6-3.8 mm; a plurality of lateral drainage holes (11) are formed in the end of the drainage tube (1); the end surface of the head end of the drainage tube (1) is an inclined surface (12), so that the head end of the drainage tube (1) is provided with a tip (13); the guide wire (2) is made of metal or alloy, has the diameter of 1.0-1.8 mm and can penetrate through the lumen of the drainage tube (1); the puncture outfit is provided with a puncture needle for puncturing the human body and a guide wire (2) is inserted into the human body through the needle cavity of the puncture needle; the dilator is used for dilating the wound formed after puncture along the guide wire after puncture by the puncture outfit, so that the drainage tube (1) can conveniently penetrate through the dilated wound.

2. The medical drain tube assembly of claim 1, wherein the dilator comprises a main tube (31), a tip portion (32), and a capture portion (34); the tip part (32) and the clamping part (34) are respectively positioned at two ends of the main tube (31); a guide hole (33) is provided along the axial direction at the center of a structure composed of the main tube (31), the tip section (32), and the retaining section (34).

3. The medical drain assembly according to claim 1, wherein the drain tube (1) is entirely made of polytetrafluoroethylene.