JP7142290B2 - medical drain tube - Google Patents

Description

The present invention relates to medical drain tubes.

2. Description of the Related Art After surgical or orthopedic surgery, a medical drain tube (hereinafter also simply referred to as a drain tube) may be placed in a surgical wound for the purpose of preventing hematoma from forming. One end of the drain tube is placed in the wound, the other end is pulled out of the body, and negative pressure is applied with a suction bag or the like to drain blood, body fluids, gas, etc. exuding from the wound. Various studies have been made on the shape and material of the drain tube (for example, Patent Documents 1 and 2).

JP 2013-189551 A JP-A-2005-81021

In general, the drain tube is often tied and secured to the patient's skin with a string. When the drain tube is tightly tied with a thread and fixed to the patient's skin, the fixing force is weak, so there is a risk that the drain tube will come off. In addition, when the drain tube moves due to gauze exchange or body movement, the gap between the drain tube and the skin widens, air leaks occur, negative pressure is no longer applied to the wound, and blood and pus inside the wound are sucked. It can get difficult. In addition, since blood in the wound may leak out from the gap between the drain tube and the skin, it is sometimes covered with gauze to prevent contamination of clothes and sheets. It may become difficult to aspirate the blood or pus inside. In addition, covering the wound with gauze hides the wound, making follow-up observation difficult.

In general, the drain tube placed in the wound is removed when the bleeding stops, so the drain tube is often removed in 1 to 3 days, but in some cases it may be left in place for a longer period of time. In this case, the possibility that the above-described problems will occur is even higher.

The present invention provides a drain tube that can prevent the drain tube from slipping off and the formation of a gap between the drain tube and the skin, and a method for using the same.

The present invention is a medical drain tube having a tube body having an insertion section and a first discharge section, and a fixing member for fixing the tube body to the skin surface of a patient.

In one aspect of the present invention, the fixing member has a hole.

In one aspect of the present invention, the angle between the tube body and the surface of the patient's skin can be maintained at 10° to 60°.

The present invention comprises a first step of indwelling the insertion portion of the medical drain tube in the wound of the patient, and a second step of fixing the medical drain tube to the skin surface of the patient after the first step. A method of using a medical drain tube, comprising steps.

In one aspect of the present invention, after the second step, there is a third step of cutting the tube main body on the discharge section side of the fixing member.

In one aspect of the present invention, after the third step, a suction connector having a suction cover capable of covering a fixing member of the medical drain tube fixed to the patient's skin surface and a second outlet. a fourth step of covering the fixation member fixed to the patient's skin surface with the suction cover;

One aspect of the present invention includes, after the fourth step, a fifth step of connecting a suction means to the second discharge portion and applying a negative pressure to the inside of the suction cover covering the fixing member.

The present invention includes a suction cover capable of covering the medical drain tube and a fixing member of the medical drain tube fixed to the surface of the patient's skin, and a second discharge section. A medical drain tube kit with a connector.

According to the present invention, since the tube main body can be fixed to the surface of the patient's skin by the fixing member, it is possible to prevent the drain tube from slipping off and the formation of a gap between the drain tube and the skin.

Schematic diagram showing the configuration of a drain tube according to one embodiment of the present invention. Schematic diagram showing a cross section of a drain tube according to one embodiment of the present invention. Schematic diagram showing the configuration of a fixing member for a drain tube according to one embodiment of the present invention. Schematic diagram showing an example of a cross-section of a drain tube in use according to an embodiment of the present invention. Schematic diagram showing an example of a suction connector of one embodiment of the present invention Schematic diagram showing an example of a state when the drain tube of one embodiment of the present invention is in use. Schematic diagram showing an example of usage of a suction connector and a drain tube according to an embodiment of the present invention. Schematic diagram showing the configuration of a drain tube according to one embodiment of the present invention. Schematic diagram showing the configuration of a fixing member for a drain tube according to one embodiment of the present invention. Schematic diagram showing the configuration of a fixing member for a drain tube according to one embodiment of the present invention. Schematic diagram showing the configuration of a fixing member for a drain tube according to one embodiment of the present invention. Schematic diagram showing the configuration of a fixing member according to one embodiment of the present invention

<Drain tube>
The drain tube of this embodiment will be described with reference to the drawings. Each figure schematically shows the size of each member in order to facilitate the explanation of the technical concept of the drain tube of the present embodiment.

FIG. 1 is a schematic diagram showing the configuration of a drain tube 1 of this embodiment. The drain tube 1 has a tube body 11 having an insertion portion 111 and a first discharge portion 112, and a fixing member 12 for fixing the tube body 11 to the skin surface of a patient.

Both ends of the tube main body 11 are perforated, and both the perforations communicate with each other through the inner lumen of the tube main body 11 . The shape, size and material of the tube main body 11 are not particularly limited as long as they can be used as a medical drain tube as long as they do not impair the effects of the present invention. The insertion portion 111 may have one or two or more holes (not shown) in its side portion to facilitate suction of blood or the like in the wound.

In FIG. 1, the fixation member 12 has a plurality of holes 121 for suturing with a thread to the surface of the patient's skin in use. The fixing member 12 has a circular shape extending substantially vertically from the tube main body 11 and is provided integrally with the outer peripheral surface of the tube main body 11 . The fixing member 12 is preferably transparent from the viewpoint of confirming the condition of the patient's skin covered with the fixing member 12 when the drain tube 1 is used.

FIG. 2 is a schematic diagram showing a cross section of the drain tube 1. As shown in FIG. It is preferable that the peripheral lower portion 122 of the fixing member 12 has a shape that does not damage the patient's skin. An example of a shape that does not damage the skin is a curved surface.

FIG. 3 is a schematic view of the fixing member 12 viewed from the direction of the first ejection portion 112. As shown in FIG. The fixing member 12 has a circular or substantially circular shape when viewed from the direction of the first discharge portion 112 and has a plurality of holes 121 . The material of the fixing member 12 is not particularly limited as long as it is a material that does not damage the patient's skin, and examples thereof include silicone resin and polyurethane resin.

FIG. 4 is a schematic diagram showing an example of how the drain tube 1 is used. In FIG. 4, the insertion portion 111 is placed in the wound 21 of the patient, the first discharge portion 112 is placed outside the patient's body, and the fixing member 12 is placed on the surface 22 of the patient's skin with the thread 13 inserted in the hole 121. Indicates that it is threaded and sutured and fixed. The hole at the end of the tube main body 11 on the side of the first discharge section 112 is connected to a known manual or mechanical suction device (not shown), and the blood, etc. in the wound 21 flows through the hole on the side of the end on the insertion section 111 side. is discharged through the lumen of the tube body 11 communicating from the first discharge part 112 side to the end hole. Since the drain tube 1 has the fixing member 12, the tube main body 11 can be fixed to the surface 22 of the patient's skin, so that the drain tube can be prevented from coming off or creating a gap between the drain tube and the skin. can be suppressed.

The fixing member 12 preferably has a configuration capable of holding the angle 124 between the tube main body 11 and the patient's skin surface 22 at 10° to 60°, preferably 30° to 45°. It is more preferable to have a configuration that allows Since the tube body 11 has a certain angle with respect to the patient's skin surface 22 , bending of the tube body 11 near the patient's skin surface and the fixing member 12 can be further suppressed. It is difficult to uniquely define a configuration that can hold the angle 124 between the tube body 11 and the patient's skin surface 22 at 10° to 60° because the shape of the fixing member 12 also affects it. One example is a configuration in which the plane 123 contacting the contact portion 122 of the fixing member 12 and the tube body 11 are at an angle of 10° to 60°. The angle 124 may mean the angle formed by the plane 123 and the axis when the tube body 11 is pulled straight.

In addition, since the angle 125 formed by the tube body 11 and the surface of the fixing member 12 opposite to the surface 22 of the patient's skin has a certain angle, the tube can be secured near the surface of the patient's skin and the fixing member 12 . Bending of the main body 11 can be further suppressed. The fixing member 12 preferably has a configuration capable of holding the angle 125 between 10° and 60°, more preferably between 30° and 45°. From the viewpoint of ease of manufacture, it is preferable that the angles 124 and 125 are the same.

The size of the fixing member 12 is not particularly limited, and can be appropriately selected in consideration of other factors such as the embodiment of the medical drain tube, the material of each member, and the thickness and hardness of the tube body within the scope of the purpose. , for example, a diameter of 2 to 5 mm and a thickness of 1 to 10 mm.

<How to use the medical drain tube>
A method of using the medical drain tube of the present embodiment (hereinafter also simply referred to as a method of using the drain tube) will be described with reference to the drawings. The same reference numerals are assigned to the configurations already described, and the description thereof is omitted.

The method of using the drain tube of this embodiment includes a first step of placing the insertion portion 111 of the drain tube 1 in the patient's wound 21, and after the first step, the drain tube 1 is placed on the patient's skin 22. There is a second step of fixing to the surface. As a method for fixing the drain tube 1 to the surface of the patient's skin 22, as shown in FIG. A method of pasting 122 together with a double-sided tape can be exemplified.

The method of using the drain tube of the present embodiment preferably includes a third step of cutting the first discharge portion 112 side of the tube body 11 from the fixing member 12 after the second step. FIG. 5 is a schematic diagram showing a state in which the first discharge portion 112 side of the tube body 11 is cut from the fixing member 12 after the second step.

After the third step, the method of using the drain tube of this embodiment preferably has a fourth step of covering the fixing member 12 fixed to the patient's skin surface 22 with a suction cover of a suction connector. .

FIG. 6 is a schematic diagram showing the configuration of the suction connector 3 according to this embodiment. The suction connector 3 has a suction cover 31 which can cover the fixing member 12 of the drain tube 1 fixed to the skin surface 22 of the patient, and a second outlet 32 . When the fourth step is provided, it is preferable to cut the discharge portion 112 to a length that fits inside the suction cover 31 in the third step.

FIG. 7 is a schematic diagram showing a state in which the suction cover 31 of the suction connector 3 covers the fixing member 12 fixed to the patient's skin surface 22 after the third step. For example, the suction cover 31 is attached to the patient's skin surface 22 by double-sided tape. The shape and material are not particularly limited as long as they cover the fixing member 12 and the cut discharge portion 112 and can make the inside of the suction cover 31 negative pressure in the fifth step described later. The suction cover 31 is preferably transparent from the viewpoint of checking the condition of the patient's skin. A suction film may also be interposed between the suction cover 31 and the skin surface 22 . An example of the suction cover 31 is a dressing connector.

In the method of using the drain tube of this embodiment, after the fourth step, a suction means (not shown) is connected to the opposite end of the suction cover 31 of the second discharge part 32, and the fixing member 12 is Preferably, there is a fifth step of creating a negative pressure inside the encased suction cover 31 . By applying a negative pressure to the inside of the suction cover 31 covering the fixing member 12 , the blood or the like in the wound portion 21 is discharged to the outside through the lumen in the insertion portion 111 .

<Medical drain tube kit>
The medical drain tube kit of this embodiment has the drain tube 1 and the suction connector 3 .

The above is a description of an example of the medical drain tube of the present embodiment, a method of using the same, and a medical drain tube kit.

It should be noted that the shape of the fixing member 12 of the drain tube 1 has been described as circular. However, the fixing member 12 may have another shape as long as it can fix the tube body 11 . As another shape of the fixing member 12, an umbrella shape that spreads toward the insertion portion 111 can be exemplified. FIG. 8 is a schematic diagram showing a drain tube having an umbrella-shaped fixing member 41 that widens toward the insertion portion 111 . FIG. 9 is a schematic diagram showing a cross-sectional view of a drain tube with a securing member 41. FIG.

Also, the fixing member 12 of the drain tube 1 has been described as circular. However, the fixing member 12 may have another shape as long as it can fix the tube body 11 . 10 and 11 are schematic diagrams of fixing members 5 having other shapes as viewed from the discharge section 112 side. For example, when the fixing member is elliptical, it is preferable that the tube main body 11 is provided so as to extend in the major axis direction of the ellipse.

Also, the fixing member 12 has been described as being configured integrally with the drain tube 1 . However, the fixing member may be attachable to and detachable from the drain tube 1 . FIG. 12 is a schematic diagram showing a fixing member 6 that can be attached to and removed from the drain tube 1. As shown in FIG. In FIG. 12, the fixing member 6 has a hole 61 near the center through which the tube body 11 can pass, and a slit 62 provided from the hole 61 in the outer peripheral direction of the fixing member 6 . The fixing member 6 of FIG. 12 can be attached to the tube body 11 by widening the slit 62 to the left and right, passing the tube body 11 through the hole 61 , and closing the slit 62 . The fixing member 6 can be attached to the tube body 11 after the insertion portion 111 of the tube body 11 is left in the patient's wound.

Although the present invention has been described in detail, the foregoing description is in all respects merely illustrative of the present invention and is not intended to limit its scope. It goes without saying that various modifications and variations can be made without departing from the scope of the invention.

1 Drain tube 11 Tube main body 111 Insertion part 112 First discharge part 12 Fixing member 121 Hole part 122 Outer periphery lower part 123 Plane 124 Angle 125 Angle 13 Thread 21 Wound part 22 Skin surface 3 Suction connector 31 Suction cover 31 Second discharge part 4 Drain tube 41 Fixing member 5 Fixing member 6 Fixing member 61 Hole 62 Slit

Claims (3)

A tube body having an insertion section and a first discharge section, and a fixing member for fixing the tube body to the skin surface of a patient, a medical drain tube, and
A medical drain tube kit comprising a suction connector having a suction cover capable of covering a fixing member of said medical drain tube fixed to a patient's skin surface and a second outlet. The medical drain tube kit according to Claim 1, wherein the securing member has a hole. 3. The medical drain tube kit according to claim 1, wherein the tube body can be held at an angle of 10° to 60° with the skin surface of the patient.

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