JP2003062083A - Fastening instrument for body surface to catheter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastening instrument for a catheter with due consideration for contact with body surface of a patient to minimize the pain of the patient in the retract portion of the catheter and also capable of preventing an occlusion of the catheter. SOLUTION: The fastening instrument for a catheter is formed of a portion (5) which holds vertically a catheter-fixedly-holding portion (3) of the catheter retracted toward the body surface of a patient vertically to the body surface, a holding-with-a-gradient portion (6) and a gently-holding-in-a-circular-arc portion (7) which interconnects both said portions. By holding the catheter vertically such a case in which the retract portion applies force toward the catheter causing to impart a feeling of physical disorder to the patient can be prevented, and the occlusion of the catheter can be also prevented by holding the catheter in a gentle, circular arc, communicating way along the body surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture used for fixing various catheters to the surface of a patient's body.

[0002]

2. Description of the Related Art Various catheters are used for the purpose of injecting a medicinal solution into the body or discharging body fluid out of the body. When these catheters are attached to a patient, they are not affected by the movement of the patient's body, and the tip of the catheter can be fixed so that it is located in the target organ or body cavity. It is very important that it can be fixed between the body of the patient and the bed so as not to be occluded even when pressed.

Regarding the catheter body surface fixing device, one having a percutaneous terminal made of titanium to be implanted under the skin and a titanium screw for fixing the catheter by fitting with the percutaneous terminal is disclosed in Japanese Patent Application Laid-Open No. 3-300.
It is disclosed in Japanese Patent No. 254758. Since a metal percutaneous terminal is embedded and fixed under the skin, the wound is stimulated with metal to cause pain, and because of subcutaneous implantation, the wound becomes large and the risk of infection increases. In addition, since a fixture made of a hard material such as metal is pressed against the patient's body surface by a bed or the like, there is a problem that it causes pain and discomfort at bedtime.

Japanese Patent No. 1948760 discloses a method in which an elastic pad provided with a flexible strap is adhered to the body surface and the catheter is fixed by the strap. In order to fix the catheter parallel to the body surface at a place apart from the part, the catheter is 9
It bends at 0 degrees, and this bend is easily compressed between the body surface of the patient and the bed to be occluded, and when the catheter is compressed, the wound of the drawer part is stimulated, causing pain in the patient. I have a problem.

Further, a disc-shaped fixture having a flange is provided with a hole penetrating obliquely, and a catheter vertically drawn from the body surface is obliquely fixed, so that the lumen of the catheter is blocked at the body surface withdrawal portion. Things to prevent (Patent No. 29
No. 14996) or a dome with a built-in gauze with holes for fixing the catheter (utility model No. 305).
No. 7810) is also disclosed, but in these inventions, the catheter is not protected at the exit of the catheter in the hole of the body surface fixing device, and therefore, the catheter is occluded due to the compression between the fixing device and the bed. There was a problem that it was easy.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a catheter body surface fixing tool which can reduce the patient's pain at the body surface withdrawal portion and prevent the catheter from being blocked. .

[0007]

Means for Solving the Problems That is, according to the present invention, (1) a portion for holding a catheter drawn out to the body surface perpendicularly to the body surface, a portion for holding the catheter at an angle, and the both portions are communicated with each other. And a portion for holding in a gentle arc shape.
(2) The catheter body surface fixing device according to (1), in which each portion for holding the catheter comprises a groove into which the catheter fits and a member fitted into the groove and covering the catheter, and (3) the material of the fixing device is rubber or The catheter body surface fixing device according to (1) or (2), which is a thermoplastic.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings. 1 and 2 schematically show a catheter body surface fixing tool which is an embodiment of the present invention. The material of the catheter body surface fixing device (1) is rubber, a thermoplastic elastomer, a thermoplastic resin, or a composite of these, and the pain and discomfort of the patient caused when the body surface of the patient and the bed are compressed. Considering the above, a material that is as flexible as possible is preferable,
Silicone rubber, polyurethane resin, thermoplastic elastomer and the like are particularly preferable.

The catheter body surface fixing device according to the present invention comprises a body surface contacting portion (2) and a catheter holding and fixing portion (3). The shape of the body surface contacting portion (2) is not particularly limited, but is stable on the body surface. It is important that they can be fixed together. For example, a circle, an ellipse, or a polygon whose corners are large arcs can be used. Although the thickness of the body surface contact portion (2) depends on the material used, a thickness of 1 to 3 mm is preferable in order to suppress discomfort of the patient and to stably fix the body surface fixing tool to the body surface. It is also possible to pass a suture thread or the like to surely fix the body surface, and to provide a plurality of suture holes (4) for suturing the body surface contact portion (2) to the epidermis. An adhesive or the like for fixing to the body surface may be applied to the body surface side surface of the contact portion (2).

The catheter holding and fixing portion (3) connects the portion (5) for holding the catheter perpendicularly to the body surface contact portion (2), the portion (6) for holding the catheter obliquely, and connecting these with a gentle arc. Catheter fixing hole (0.5) with a diameter of 0.5 to 2 mm, which is composed of an elliptical shape for holding the catheter (7) (hereinafter referred to as a catheter curved holding portion) and which can be fixed with a suture thread or the like to securely fix the catheter. You may provide several (8). The catheter holding part (3) has a strength that can firmly hold the catheter in a bent state, and further, even if it is compressed between the body surface of the patient and the bed, the patient is given a pain and a strong discomfort. It is necessary to have a certain hardness, and a thickness of 5 to 12 mm is preferable although it depends on the catheter surface fixing device itself and the material of the catheter.

The catheter holding and fixing portion (3) has a groove (9) for fitting and fixing the catheter, and the groove (9).
It is preferable that the cross-sectional shape of the arc is an arc shape, and the angle of the arc is 90
It is preferably between 0 and 330 degrees. Further 150
It is more preferable that the range of up to 230 degrees can be held more reliably.

The portion (5) for holding the catheter vertically holds the catheter pulled out vertically from the body surface, and even if the catheter is bent and fixed along the curved catheter holding portion (7), the catheter is pulled out on the body surface. It is important to be able to stabilize the catheter so that it does not
For this purpose, it is preferable that the part (5) for holding the catheter vertically has a certain length,
If the length is too long, the height of the entire catheter fixing tool becomes high, and the catheter fixing tool strongly presses the body surface of the patient when the patient is sleeping. Therefore, the length is preferably 2 to 5 mm.

The catheter curved holding portion (7) holds the catheter to a portion (6) for holding the following catheter obliquely while drawing a gentle arc without closing the lumen of the catheter drawn out perpendicularly to the body surface. It is important to hold the catheter firmly in the catheter fixing tool while guiding, depending on the outer diameter size and material of the catheter,
The radius of the gentle arc is preferably 10 to 30 mm.

Portion for holding the catheter at an angle (6)
Guides the catheter held by the catheter curved holding portion (7) to a height near the surface of the body comfortably and maintains the lumen of the catheter even when the catheter fixing device is compressed by the body surface of the patient and the bed. , Angle 15 ~
It is preferably 30 degrees and a length of 15 to 30 mm.

Further, as shown in FIG. 2, the catheter body surface fixing tool (1) can be fitted to the catheter holding and fixing portion (3), and these can be fitted over the catheter held by the catheter holding and fixing portion (3). It is also possible to provide a cap (10) for covering the catheter so as to reinforce the holding strength of the catheter to the catheter holding and fixing portion. In this case, a hole (11) can be provided on the side surface of the cap (10), and a protrusion (12) can be provided on the side surface of the catheter holding and fixing portion (3) to engage with the hole and fix the cap (10).

The cap (10) may be integrally formed with the catheter holding and fixing portion (3) and the body surface contacting portion (2). The material of the cap (10) is rubber, a thermoplastic elastomer, a thermoplastic, or a composite of these, and considering the pain and discomfort of the patient that occurs when compressed between the body surface of the patient and the bed, A material that is as flexible as possible is preferable, and silicone rubber, polyurethane resin, thermoplastic elastomer and the like are particularly preferable.

[0017]

As described above, by using the present invention, the catheter can be fixed without causing the patient to feel uncomfortable and the fixed catheter can be prevented from being blocked.

[Brief description of drawings]

FIG. 1 is a schematic view of a catheter body surface fixing tool according to an embodiment of the present invention.

FIG. 2 is a schematic view of a catheter body surface fixing tool according to another embodiment of the present invention.

[Explanation of symbols]

1. Catheter body surface fixture 2. Body surface contact area 3. Catheter holding fixed part 4. Hole for suture 5. The part that holds the catheter vertically 6. The part that holds the catheter at an angle 7. Catheter curved holding part 8. Catheter fixing hole 9. groove 10. cap 11. hole 12. Protrusion

Claims (3)

[Claims] 1. At least a portion for holding a catheter pulled out to the body surface perpendicularly to the body surface, a portion for holding the catheter at an angle, and a portion for holding the two portions in a gentle arc shape communicating with each other. A catheter body surface fixing device comprising: 2. The catheter body surface fixing device according to claim 1, wherein each portion for holding the catheter comprises a groove into which the catheter is fitted and a member fitted into the groove to cover the catheter. 3. The catheter body surface fixing device according to claim 1, wherein the material of the fixing device is rubber or thermoplastic elastomer.