JP2002360705A - Fixing instrument of tubular member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing instrument capable of fixing a tubular member such as a catheter easily and firmly. SOLUTION: In the fixing instrument 1 for fixing the tubular member such as a catheter, the tubular member is easily inserted into a cylindrical holding part 2 for holding the tubular member through a slit 3 and first and second wing-like parts 5 and 6 are subsequently superposed to be fixed mutually to close the slit 3 and the holding part 2 is reduced in its diameter by the compressed force applied to the outside of the holding part (or the force acting in a slit closing direction) to fix the tubular member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catheter for preventing inadvertent advance and retreat of a tubular body such as a catheter used for infusion of infusion, circulation of body fluid, discharge of drainage, and the like, which is inserted and placed in a body. The present invention relates to a fixture for fixing a body.

[0002]

2. Description of the Related Art In recent years, treatment and diagnosis using a tubular body such as a catheter or a tube have been widely used. These tubular bodies have one or a plurality of lumens (lumens), and are used for injecting a chemical solution into the body or waste liquid outside the body. As such, general-purpose disposable tubular bodies include urinary catheters, enteral feeding catheters, bile duct catheters, gastric tube catheters, bronchial tubes, central venous catheters, drainage tubes,
Suction catheters and the like can be mentioned. Examples of high-performance catheters include angiographic catheters, heart catheters, vascular dilatation catheters, thrombus removal catheters, epidural catheters, and endoscope catheters. Further, there may be mentioned a tube such as an infusion line having an inner cavity and used for sending and discharging a medical solution or a body fluid.

[0003] When a tubular body having a lumen such as a catheter as described above is placed in the body, means for fixing the catheter includes means for fixing the catheter to the patient's body surface with tape or the like, Means include a means for ligating a certain catheter with a suture and sewing the same to the skin, a means for creating a subcutaneous tunnel, and inserting a cuffed catheter into the place.

[0004] However, although the means for fixing with a tape is simple, there is a risk that the catheter may be displaced if an unexpected external force is applied to the catheter. It is also convenient to sew the catheter directly to the skin with a suture thread.However, stress concentrates on the part where the thread is wound, and the catheter may bend and kink, or the lumen of the catheter may be closed. There is a risk of being lost. Although the means for preparing the subcutaneous tunnel is reliable, the procedure for indwelling is complicated, and is not often used as a generally used catheter for high-calorie infusion.

Further, as a means for solving the above-mentioned problems, a rubber-like flexible cylindrical member and a hard cover member put on the rubber-like member are used to press the catheter to prevent the catheter from moving back and forth. Fixtures that can be locked are commercially available. With such a fixing device, it is possible to fix the catheter relatively easily, but this fixing device requires at least two members, that is, a rubber-like flexible member and a hard member of the cover. Furthermore, when there are two or more members as described above, the operator must surely hold both members using both hands, and one of the members may fall to the floor due to an accidental operation. I cannot deny the possibility of getting dirty. Further, if it is desired to move the position of the catheter, it is necessary to remove the tightly fitted cover portion, and there is a problem that this operation is very difficult.

[0006]

In a fixture for holding and fixing a tubular body such as a catheter, the performance required for the fixture is to prevent the catheter from moving back and forth when an unexpected external force is applied. In addition, when the catheter is fixed, it is necessary not to crush the lumen of the catheter, to be able to reliably fix the catheter to the patient's skin surface, and to simplify the procedure.

In addition, when the fixing device is mounted, the number of parts is reduced as much as possible, and only the members necessary for the operation field operated by the operator are used, and the fixing device becomes dirty due to the above-mentioned accidental operation. It is necessary to prevent that. Therefore, an object of the present invention is to provide a fixing device that can be easily operated by an operator and can easily fix a tubular body such as a catheter.

[0008]

The above-mentioned object is achieved by the present invention described below.

(1) The present invention relates to a fixing device for fixing a tubular body such as a catheter, comprising a cylindrical holding portion having a slit provided in a longitudinal direction, and a first wing extending perpendicularly to the longitudinal direction. And a second wing portion, wherein the holding portion, the first wing portion and the second wing portion are integrated, and the first wing portion and the second wing portion have And fixing means for fixing the first wing-shaped part and the second wing-shaped part after inserting the tubular body through the holding part through the slit. A fixing tool for fixing the tubular body by closing the slit by fixing by the fixing means in a state of being overlapped so as to surround the holding portion, and compressing the holding portion from the outside.

(2) The present invention is the fixture according to (1), which is made of a flexible material.

(3) The present invention is the fixture according to the above (1) or (2), wherein the inner diameter of the holding portion is smaller than the outer diameter of the tubular body.

(4) The present invention is the fixture according to any one of (1) to (3), wherein the first wing portion can be fixed to the skin.

(5) The present invention has a third wing portion extending horizontally from the first wing portion via the holding portion, and the first wing portion and the third wing portion can be fixed to the skin. The fixing device according to any one of (1) to (4).

The fixing tool of the present invention may be any one as long as the components are combined and integrated, and may be made of the same material, or may be made of a different material for each component. . By thus being integrated, one of the components does not come off due to an accidental operation, and can be operated safely, reliably, and easily, and one of the components may fall on the floor. It is excellent in hygiene because there is no thing.

As a material constituting the fixing device of the present invention, a polymer elastomer is preferable. The use of the high-molecular elastomer makes it possible to sufficiently press and fix a tubular body such as a catheter, and not to give an uncomfortable feeling to the patient's body surface. As the above-mentioned polymer elastomer, those having rubber elasticity at around normal temperature are preferable, and examples thereof include diene polymers such as natural rubber, polybutadiene, polyisoprene, polypentadiene, polyhexadiene, polyheptadiene, and polychloroprene. Alternatively, the copolymer is an olefin polymer or copolymer such as a styrene-ethylene-butylene-styrene copolymer, a styrene-ethylene-propylene-styrene copolymer, an ethylene-vinyl acetate copolymer, or an organosiloxane. Silicone rubber, polyurethane, polyvinyl chloride, polyester elastomer, polyamide elastomer, and the like.

The hardness of these materials is desirably lower than that of a tubular body such as a catheter. This is because when the hardness is higher than that of a tubular body such as a catheter, the catheter may be deformed by pressing and the lumen may be crushed. The above-described materials may contain an antibacterial agent or may be subjected to a surface treatment to impart an antibacterial effect. Examples of such antibacterial agents include chlorhexidine, chlorhexidine gluconic acid, biguanide compounds such as polyhexamethylene biguandinine, erythromycin, oxytetracycline, tetracycline, chloramphenicol, fusidic acid, micamycin, kanamycin, gentamicin, fradiomycin, chlamicidin. Antibiotics such as streptomycin, polymyxin, colistin, bacitracin, benzethonium, benzalkonium, lauryl sulfate, alkylpolyaminoethylglycine, fatty acids, compounds having surface activity such as benzoic acid, sorbic acid, caprylic acid, and ethers such as triclosan Phenol derivatives such as phenol, hexachlorophene and resorcin; isothiazolone compounds such as 1,2-benzothiazolone; boric acid; C boric acid compound such as sand, iodine, iodine compounds such as iodoform, gold,
Metals such as silver, copper and mercury, metal compounds such as thimerosal and methylobromine, antibacterial dye compounds such as acrinol and methylrosalinine, sulfa drugs such as mafenide acetate, sulfadiazine, sulfisomidine, sulfamethoxazole, chitin, chitosan , Quaternary ammonium salts and the like can be used. Furthermore, derivatives of the above compounds such as sodium salt, potassium salt, magnesium salt, calcium salt, hydrochloride, sulfate, acetate, gluconate and the like can also be used.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

<Embodiment 1> FIG. 1 is a perspective view showing an example of a fixture 1 for fixing a tubular body such as a catheter of the present invention to skin. The fixture 1 has a cylindrical holding part 2 for holding a tubular body 12 (see FIG. 2).
The holding portion 2 is provided with a lumen 4 through which the tubular body 12 can be inserted, and a slit 3 for introducing the tubular body 12 into the lumen 4. The lumen 4 has the same diameter as the tubular body 12 or is slightly smaller.

Further, the fixture 1 is provided with a first wing portion 5 and a second wing portion 6 extending perpendicularly to the longitudinal direction of the holding portion 2. It is desirable that the horizontal plane of the first wing portion 5 and the second wing portion 6 be parallel to the longitudinal direction of the holding portion 2. However, the present invention is not limited to this, and when the tubular body 12 is to be fixed at a certain angle, Are a first wing 5 and a second wing 6
May be provided at an arbitrary angle with respect to the longitudinal direction of the holding unit 2.

The first wing portion 5 and the second wing portion 6 may be provided as fixing means for fixing the first wing portion 5 and the second wing portion 6 in a state of being superposed so as to surround the holding portion 2. A locking hole 8 is provided on one side, and a projection 9 engageable with the locking hole 8 is provided on the other side. Although not particularly limited, it is preferable that a projection 9 is provided on the first wing 5 and a locking hole 8 is provided on the second wing 6. Even if one set of the locking hole 8 and the projection 9 does not cause a problem in function, further fixing force can be drawn out by providing two or more sets.

FIG. 3 is an enlarged view of the locking hole 8, and FIG. A notch 8a is formed in the locking hole 8 so that the rib 9a of the projection 9 can easily pass through. In FIG. 3, four notches 8a are provided, but the number is not limited. The outer diameter 8b of the locking hole 8 is
The outer diameter of the support portion 9b of the projection 9 is substantially the same as or slightly larger than that of the support portion 9b, so that when the rib portion 9a of the projection 9 passes, it does not disengage.

The protrusion 9 (including the rib 9a and the support 9b) passes through the locking hole 8 and can be engaged if it has a shape.
For example, any shape such as a conical shape, a triangular pyramid shape, and a quadrangular pyramid shape can be formed. Similarly, the engaging hole 8 can be formed in a regular polygon such as a regular triangle or a regular square, a perfect circle, an ellipse, an ellipse, or the like, and the projection 9 (the rib 9a and the support 9b) can be formed. ) May be used as long as the shape is easy to fit and hard to remove.

The fixing device 1 is provided with a third wing portion 7 extending horizontally from the first wing portion 5 via a holding portion in order to increase the stability of fixing to the skin. As a method of fixing the fixing tool 1 to the skin by the first wings 5 and the third wings 7, there is a method of sewing the skin and the first wings 5 and the third wings 7 with a suture. More specifically, the first wing portion 5 is provided with a suture insertion hole 10a, and the third wing portion 7 is provided with a suture insertion hole 10b.

At this time, in a state where the first wing portion 5 and the second wing portion 6 are overlapped so as to surround the holding portion 2,
The U-shaped cut portion 11 or the suture insertion hole 1 is formed in a portion of the wing 6 that overlaps the suture insertion hole 10a of the first wing 5.
It is desirable to provide a hole similar to 0a. This allows
The suturing operation can be performed easily. In addition, as a method of fixing to the skin, the first wing 5 and the third wing 7
An adhesive may be applied to the base material and fixed via the adhesive.

The fixture 1 is obtained by integrally molding the above-mentioned respective components. Examples of the method of integral molding include a method of injection molding using the same material, and a method of integrating respective components made of the same material or different materials by bonding or fusion.

Hereinafter, a method of using the fixture 1 will be described. First, a tubular body 12 such as a catheter inserted into the body through the slit 3 is inserted into the lumen 4. After that, the fixing tool 1 is moved to the vicinity of the insertion portion to an appropriate fixing portion. Next, the second wing portion 6 is brought close to the first wing portion 5, and the projection 4 of the first wing portion 5 is engaged with the locking hole 8 of the second wing portion 6 when the first wing portion 5 is overlapped. The second wing portion 6 is fixed. FIG. 2 shows the state at this time.

Further, a suture is inserted through the suture insertion holes 10a and 10b and sewn directly to the skin, or is inserted into a stat lock (manufactured by VENETEC) and fixed to the skin.

At this time, the slit 3 is closed, and the holding portion is reduced in diameter by a compressive force (or a force acting in a direction to close the slit) from the outside, so that the tubular body can be fixed.

<Embodiment 2> FIG. 5 is a perspective view showing an example of another embodiment of the fixture 1. As shown in FIG. The thin portion 13 is formed on the second wing portion 6.
Has the same configuration as that of the fixing tool 1 of the first embodiment except that the fixing tool 1 is formed. The second wing portion 6 is formed by the thin portion 13.
Is easy to bend and the operability is improved.

<Embodiment 3> FIG. 6 is a perspective view showing another example of the fixture 1. Small-diameter portions 15a, 15b formed to be smaller than the outer diameter between the holding portion extension portions 14a, 14b in the extension direction before and after the holding portion 2 and between the holding portion 2 and the holding portion extension portions 14a, 14b. Has the same configuration as that of the fixing tool 1 of the second embodiment except that the fixing tool 1 is formed. The holding of the tubular body is further stabilized by the holding portion extension portions 14a and 14b, the suture can be threaded by the small diameter portions 15a and 15b, and the tubular body such as a catheter can be fixed more firmly. The fixation to the skin can be performed reliably.

<Embodiment 4> FIG. 7 is a perspective view showing another example of the fixture 1. Thin portion 13 of second wing 6
Has a configuration similar to that of the fixing tool 1 of the third embodiment, except that a plurality of uneven portions 16 extending in the longitudinal direction are formed on the fixing tool 1. The rigidity of the thin portion 13 can be maintained by the thin portion 13 on which the uneven portion 16 is formed, while maintaining the operability due to the fact that the second wing portion 6 is easily bent. Also,
The number of cuts 8a of the locking hole 8 is three, and the engagement force with the projection 9 is further improved.

As shown in FIG. 7, the uneven portion 16 is formed by forming a convex portion on the thin portion 13.
May be formed, but the concavo-convex portion 16 may be formed by forming a concave portion in the second wing portion 6.

<Embodiment 5> FIG. 8 is a perspective view showing an example of another embodiment of the fixture 1. A rectangular parallelepiped projection 18 (consisting of a trapezoidal rib 18a and a rectangular parallelepiped support portion 18b on the second winged portion 6) and a rectangular locking hole 17 that engages with the projection 18 are formed on the first winged portion 5. Except for this, it has a configuration similar to that of the fixture 1 of the fourth embodiment.

With the rectangular locking hole 17 and the rectangular projection 18, the first wing 5 and the second wing 6 can be easily fixed and engaged. In addition, since the support portion 18b can be formed relatively large, the rigidity at the time of engagement can be increased, so that the engagement force between the first wing portion 5 and the second wing portion 6 can be increased.

[0035]

The fixture for fixing a tubular body, such as a catheter, of the present invention is obtained by easily inserting a tubular body through a slit into a cylindrical holding portion for holding the tubular body. By overlapping and fixing the first wing portion 5 and the second wing portion 6, the slit 3 is closed, and the holding portion can be reduced in diameter by a compressive force (or a force acting in a direction to close the slit) from the outside. As a result, the fixation of the tubular body can take place. That is, the tubular body can be easily and firmly fixed.

The fixing device of the present invention is not limited as long as the components are combined and integrated, and may be made of the same material or different materials for each component. . By thus being integrated, one of the components does not come off due to an accidental operation, and can be operated safely, reliably, and easily, and one of the components may fall on the floor. It is excellent in hygiene because there is no thing.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fixture according to the present invention.

FIG. 2 is a perspective view showing an example of a use state of the fixture of the present invention.

FIG. 3 is a front view of a locking hole 8 which is an example of a means for fixing the first wing portion and the second wing portion.

FIG. 4 is a front view of a protrusion 9 which is an example of a fixing means of the first wing portion and the second wing portion.

FIG. 5 is a perspective view showing another embodiment of the fixture of the present invention.

FIG. 6 is a perspective view showing another embodiment of the fixture of the present invention.

FIG. 7 is a perspective view showing another embodiment of the fixture of the present invention.

FIG. 8 is a perspective view showing another embodiment of the fixture of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixture 2 Holding part 3 Slit 4 Lumen 5 First wing part 6 Second wing part 7 Third wing part 8 Locking hole 8a Notch part 8b Outer diameter 9 Projection 9a Rib part 9b Support part 10a Suture thread insertion hole 10b Suture insertion hole 11 U-shaped cut portion 12 Tubular body 13 Thin portion 14a Holding portion extension portion 14b Holding portion extension portion 15a Small diameter portion 15b Small diameter portion 16 Uneven portion 17 Locking hole 18 Protrusion 18a Trapezoidal rib 18b Rectangular body Support

Claims (5)

[Claims] 1. A fixing device for fixing a tubular body such as a catheter, comprising: a cylindrical holding portion having a slit provided in a longitudinal direction; a first wing portion and a second wing shape extending perpendicularly to the longitudinal direction. Wherein the holding portion, the first wing portion, and the second wing portion are integrated, and the first wing portion and the second wing portion overlap each other. Fixing means for fixing the holding member in a state in which the first wing portion and the second wing portion surround the holding portion after the tubular body is inserted through the holding portion through the slit. By being fixed by the fixing means in a state of being overlapped, the slit is closed, and
A fixture for fixing the tubular body by compressing the holding portion from the outside. 2. The fixture according to claim 1, wherein the fixture is made of a flexible material. 3. The fixture according to claim 1, wherein the inner diameter of the holding portion is smaller than the outer diameter of the tubular body. 4. The fixing device according to claim 1, wherein the first wing portion can be fixed to the skin. 5. A third wing portion extending horizontally from said first wing portion via said holding portion, wherein said first wing portion and said third wing portion can be fixed to the skin. The fixing device according to the item.