JP6745600B2 - Disinfection cap for needleless connectors - Google Patents

Description

The present invention relates to a disinfection cap for needleless connectors.

In medical practice, preventing microbial contamination of an infusion line connecting an infusion bottle and a catheter indwelling in a blood vessel is extremely important from the viewpoint of infection prevention.
The needleless connector, which is one of the infusion connection systems, is attracting attention as a system that can prevent needle stick and reduce the risk of contamination because it does not use a hollow needle.
Then, conventionally, a disinfection cap for disinfecting the connection end portion of such a needleless connector has been proposed.

For example, Patent Document 1 discloses a medical device cleaning apparatus including a friction fit and an energy director. The cleaning device includes a cap having an opening to an internal cavity, the opening being configured to receive a site of a medical device. The cleaning device also further includes a compressible cleaning material containing a cleaning agent prior to receiving the site of the medical device. The cleaning material is at least partially secured to the internal cavity of the cap and is configured to clean the site by wiping with a cleaning agent.

Patent Document 2 discloses a disinfecting wiper for a hollow connector provided in an indwelling infusion line. This wiping tool comprises a flexible bottomed cylinder portion having an inlet, an absorbing member housed and arranged in the bottomed cylinder and impregnated with a disinfectant solution, and a seal for sealing the inlet. And a stop member. The absorbing member has an inner surface pressure contact portion and an outer surface pressure contact portion. The inner surface pressure-contacting portion is pressed into the hollow inner peripheral surface of the connecting end portion of the hollow connector inserted from the introduction port. The outer surface pressure contact portion enters into a space between the outer peripheral surface of the connection end portion of the hollow connector and the inner peripheral surface of the bottomed container, and is pressed into contact therewith. As a result, the hollow inner peripheral surface and the outer peripheral surface at the connection end of the hollow connector can be wiped at the same time to sterilize both.

Further, Patent Document 3 discloses a microbial washing brush for sterilizing female lures. This brush is composed of a cup-shaped housing forming a recess and having an open end, a disinfecting portion of a foam material disposed in the recess and exposed at the open end of the housing, and a bactericidal antibacterial agent in the disinfecting portion. Has been done.

Japanese Patent Publication No. 2013-523222 JP 2012-176042A JP, 2008-253775, A

By using the disinfecting caps described in Patent Documents 1 to 3 above, the connection end of the needleless connector can be disinfected, and microbial contamination of the infusion line can be prevented.
However, when removing the disinfecting cap described in the above Patent Documents 1 to 3 from the needleless connector (disinfected portion) or when the disinfecting cap is dropped, a cleaning material or the like is removed from the disinfecting cap. There is a technical problem that the member that holds the disinfectant solution may be dropped.

It is an object of the present invention to provide a disinfection cap for a needleless connector, which can effectively prevent a member impregnated with a disinfectant solution from falling off from the container body of the disinfection cap.

A disinfection cap for a needleless connector according to the present invention made to solve the above technical problem is a disinfection cap for a needleless connector,
A bottomed cylindrical container body, a sealing portion for sealing the inside of the container body by sealing an opening of the container body, and a bottom portion of the container body integrally provided with the container body A columnar portion that is erected from the center , a partially depressed depression provided at the tip of the columnar portion, face each other across the depression, and radially outward from the outer peripheral surface of the columnar portion. A projecting part that projects, a container that is housed inside the container body, is locked by the projecting part, and has a disinfectant solution storage body that is impregnated with a disinfectant solution, and the depth of the recessed part is the columnar part. It is characterized in that it is deeper than the position of the protruding portion provided and the depression allows elastic deformation of the protruding portion inward in the radial direction .
In this way, the disinfectant solution occlusion body is locked to the protruding portion that protrudes radially outward from the outer peripheral surface of the columnar portion, and therefore when the disinfecting cap is removed from the needleless connector (disinfected portion) or the disinfecting cap is used. Even if the cap is dropped, it is possible to prevent the disinfectant solution storage body from falling off from the disinfectant cap.

In particular, a recessed portion that is provided at the tip of the columnar portion and that is partially recessed, and a projecting portion that faces each other across the recessed portion and that projects radially outward from the outer peripheral surface of the columnar portion. The depth of the depression is deeper than the position of the protrusion provided on the columnar portion, and the depression allows the elastic deformation of the protrusion inward in the radial direction. Since it is elastically deformed inward in the direction, the disinfectant solution storage body can be easily and reliably locked.

Further, a disinfection cap for a needleless connector according to the present invention made to solve the above technical problem is a disinfection cap for a needleless connector, wherein a bottomed cylindrical container body and an opening portion of the container body are provided. A sealing portion that makes the inside of the container body airtight by sealing, a protruding portion that projects radially inward from the inner peripheral surface of the container body, and is housed inside the container body, And a disinfectant solution storage body impregnated with a disinfectant solution , the disinfectant solution storage body having a brim portion projecting radially outward from its outer peripheral surface, It has a ring-shaped collar mounted in a space between the inner peripheral surface of the container body and the outer peripheral surface of the disinfectant solution storage body, and the disinfectant solution storage body projects through the collar and the brim portion. It is characterized in that it is locked inside the container body by engaging with the portion .
In this way, the disinfectant solution occlusion body is locked to the protruding portion that protrudes inward in the radial direction from the inner peripheral surface of the container body. Even when the disinfecting cap is dropped, it is possible to prevent the disinfectant storage material from falling out of the disinfecting cap.

In particular, the disinfectant solution occlusion body has a brim portion that projects outward in the radial direction from the outer peripheral surface of its own, and in the space between the inner peripheral surface of the container body and the outer peripheral surface of the disinfectant solution occlusion body. The disinfectant solution storage body has a ring-shaped collar to be mounted, and the disinfectant solution storage body is locked inside the container body when the collar section and the protrusion section are engaged with each other via the collar.

According to the present invention, the columnar portion of the container body or the protrusion provided on the inner peripheral surface of the container body locks the disinfectant solution storage body accommodated inside the container body, so that the container body is disinfected. It is possible to prevent the liquid occlusion body from falling off.

FIG. 1 is a perspective view showing the external appearance of the disinfection cap according to the first embodiment. FIG. 2 is a perspective view showing a state in which the lid portion of the disinfection cap according to the first embodiment is removed. FIG. 3 is a cross-sectional view of the disinfection cap according to the first embodiment. FIG. 4 is a perspective view showing the appearance of the disinfection cap according to the second embodiment. FIG. 5: is sectional drawing of the disinfection cap which concerns on 3rd Embodiment. FIG. 6 is a cross-sectional view of the disinfection cap according to the fourth embodiment. FIG. 7: is sectional drawing of the disinfection cap which concerns on 5th Embodiment. FIG. 8 is a cross-sectional view of the disinfection cap according to the sixth embodiment.

(First embodiment)
The configuration of the disinfection cap according to the first embodiment will be described with reference to FIGS. 1 to 3. The disinfecting cap 1 for the needleless connector is composed of a container body 2, a lid portion 3, and a disinfectant solution storage body 4.
As shown in FIG. 2, the container body 2 is a bottomed tubular member provided with an opening 2a, and is erected inside the container body 2 from the center of the bottom portion upward. The columnar portion 2b is integrally provided. The container body 2 is integrally formed by injection molding using a synthetic resin such as polypropylene, polyethylene, nylon, or polycarbonate.

Further, a protrusion 2c protruding outward in the radial direction is integrally provided on the outer peripheral surface near the tip of the columnar portion 2b. The tip of the columnar portion 2b is partially depressed, so that the depressed portion 2d is provided. That is, a pair of projecting portions 2c that face each other with the recessed portion 2d interposed therebetween are provided at the tip of the columnar portion 2b.
The reason for providing the depression 2d is to allow elastic deformation of the protrusion 2c inward in the radial direction. From such a viewpoint, it is preferable that the depth of the depressed portion 2d be deeper than the position of the protruding portion 2c provided on the outer peripheral surface of the columnar portion 2b.

Further, a screw portion 2f is formed on the upper portion of the inner peripheral surface of the container body 2. The screw portion 2f is configured to be screwed with a connection end portion of a needleless connector (not shown). That is, the container body 2 is attached to the connection end of the needleless connector by screwing the threaded portion 2f into the connection end of the needleless connector.
The reason why the threaded portion 2f is provided is that not only the connection end of the needleless connector is sterilized but also the connection end of the needleless connector in an unused state is sealed to prevent microbial contamination. This is because.

A detachable lid part 3 is attached to the opening 2a of the container body 2 as an example of a sealing part that hermetically seals the inside of the container body 2 by sealing the opening 2a.
Like the container body 2, the lid 3 is also integrally formed by injection molding using a synthetic resin such as polypropylene, polyethylene, nylon, or polycarbonate.
As shown in FIG. 3, when the lid 3 is attached to the container body 2, the annular protrusion 3 a provided on the inner peripheral surface of the lid 3 and the outer peripheral surface near the opening of the container body 2 are provided. The annular protrusion 2e thus formed engages with the annular convex portion 2e, thereby ensuring a high level of airtightness inside the container body 2.

The disinfectant solution occlusion body 4 is formed by bundling synthetic fibers having a predetermined length (a synthetic fiber bundle), and is housed inside the container body 2.
The shape of the upper surface of the disinfecting liquid occlusion body 4 corresponds to the shape of the connection end of the needleless connector to be disinfected. Examples of the material of the disinfectant storage material 4 include polyamide resins such as 6,6-nylon, 6-nylon, 12-nylon, 6,10-nylon and 6,12-nylon, and polyolefin resins such as polyethylene and polypropylene. Polyester resins such as polyethylene terephthalate, polybutylene terephthalate and polytrimethylene terephthalate, polyurethane resins, polyacrylonitrile resins, acrylonitrile-styrene copolymer resins, acrylonitrile-butadiene-styrene copolymer resins and the like are used.

The synthetic fiber bundle of the disinfectant storage material 4 is preferably a bundle of a mixture of long fibers and short fibers. As described above, in the disinfectant solution occlusion body 4 in which fibers and short fibers are mixed, the long fiber portion is on the inner and outer peripheral surfaces of the connection end portion of the needleless connector, and the short fiber portion is the connection end portion of the needleless connector. It can be sterilized by pressing it against the end face of the.
It is preferable that the long fibers have a diameter of 0.07 mm to 0.15 mm and a length of 6 mm to 8 mm, and the short fibers have a diameter of 0.10 mm to 0.15 mm and a length of 4 mm to 6 mm. The total number of long fibers and short fibers is preferably 150 to 500.

The disinfectant solution storage body 4 is impregnated with a disinfectant solution containing, for example, IPA (isopropyl alcohol) as a main component, and functions as a storage body for the disinfectant solution.
In addition, the disinfecting liquid occlusion body 4 has a columnar shape corresponding to the internal space of the container body 2, and is provided with a through hole 4a penetrating vertically. As shown in FIG. 3, the columnar portion 2b on the container body 2 side is inserted into the through hole 4a of the disinfectant solution occlusion body 4, and the protrusion 2c provided on the columnar portion 2b allows the inside of the container body 2 to be removed. The disinfectant storage material 4 is locked.

When the disinfecting cap 1 having the above-described structure is used, first, the lid portion 3 is removed from the disinfecting cap 1 to expose the disinfectant solution storage body 4 in the container body 2.
Next, the connection end of the needleless connector is inserted from the opening 2a of the container body 2, the container body 2 is rotated, and screwed into the connection end of the needleless connector.
When the container body 2 rotates, the disinfectant solution impregnated in the disinfectant solution occlusion body 4 in the container body 2 wipes the connection end portion to perform disinfection. Then, after the disinfection is completed, the connection end of the needleless connector is removed from the container body 2.
When the connection end of the needleless connector is a connection end that is not used, the disinfection cap 1 is attached to the connection end of the needleless connector, and the disinfection cap 1 is used before use. It may be removed from the connection end of the connector.

According to the present embodiment, since the disinfecting liquid occlusion body 4 housed inside the container body 2 is locked by the protruding portion 2c provided on the container body 2, the disinfecting liquid storage body 4 is disinfected from the connection end of the needleless connector. It is possible to effectively prevent the disinfectant solution storage body 4 from falling off the container body 2 when the cap 1 is removed or when the cap 1 is accidentally dropped.

In addition, in the present embodiment, the protrusion 2c may have a claw shape instead of a simple protrusion. As a result, it is possible to more effectively regulate that the claw-shaped protruding portion 2c bites into the disinfectant solution storage body 4 and the disinfectant solution storage body 4 housed inside the container body 2 falls off. This point is the same for each embodiment described below unless otherwise specified.

Further, according to the present embodiment, the tip end portion of the columnar portion 2b is partially depressed to provide the depressed portion 2d, thereby allowing the elastic deformation of the protruding portion 2c inward in the radial direction. As a result, it is less likely to be affected by impact or the like, so that the disinfectant solution storage body 4 housed inside the container body 2 can be locked more effectively.

(Second embodiment)
The disinfection cap according to the second embodiment will be described with reference to FIG. In this disinfection cap 10, a heat seal 5 is used instead of the lid 3 in the first embodiment as a sealing portion that seals the opening 2a of the container body 2 to make the inside of the container body 2 airtight. There is.
As a sealing method, first, the adhesive layer (sealant material) of the heat seal 5 is melted by heat, then pressure is applied to bring it into close contact with the container body 2, and finally, cooling and sealing are performed. Since the other points are the same as those of the above-described first embodiment, the same reference numerals are given and the description thereof is omitted here (the same applies to each of the following embodiments).

According to the present embodiment, like the first embodiment, it is possible to effectively prevent the disinfectant solution storage body 4 from falling off from the container body 2. Further, by using the heat seal 5, it is possible to enhance the reliability of the airtightness of the disinfection cap 10.

In each of the embodiments described below, an example in which the lid 3 is used as a sealing portion that seals the opening 2a of the container body 2 to hermetically seal the inside of the container body 2 will be described. The heat seal 5 may be used.

(Third Embodiment)
The disinfection cap according to the third embodiment will be described with reference to FIG. In this disinfecting cap 20, batting 6 is used as the disinfectant solution storage body impregnated with the disinfectant solution, instead of the synthetic fiber bundle in the first embodiment.
The batting 6 is a product obtained by softly fixing short or long fiber threads into the outer cover, a so-called fiber bundle in which the long fiber threads are maintained in shape by an adhesive or heat welding without the outer cover, or a porous body such as a sponge. Say. Polyethylene terephthalate, polypropylene (PP) or the like is used as the material. The outer cover of the batting 6 is formed of a wound film made of a resin film or the like.
In this case, since it is possible to directly pierce the above-mentioned columnar portion 2a into the batting 6, it is not always necessary to provide the above-mentioned through hole 4a in the batting 6. In addition, the protrusion 2c (particularly preferably a claw shape) is stabbed inside the batting 2 and is entangled with the cotton fiber, so that the batting 6 can be effectively locked.
As a result, in the present embodiment, it is possible to effectively prevent the disinfectant solution occlusion body 6 from coming off from the container main body 2, and also it is possible to reduce the number of processing steps of the disinfectant solution occlusion body 6.

In addition, in this embodiment (the same applies to each of the following embodiments), the screw portion 2f is not formed on the upper portion of the inner peripheral surface of the container body 2. As described above, when the threaded portion 2f is not formed, when the needleless connector is used, the disinfection cap 1 is rotated while being pressed against the connection end portion of the needleless connector to rotate the connection end portion. Wipe off and disinfect. Further, since the screw portion 2f is not formed, the disinfection cap 1 cannot be attached to the connection end portion when the connector is not used.

(Fourth Embodiment)
The disinfection cap according to the fourth embodiment will be described with reference to FIG. In this disinfection cap 30, a porous sintered body 7 (for example, polyethylene, polyurethane, ceramic sintered body) is used as a disinfectant storage material impregnated with the disinfectant. In this case, the projecting portion 2c (particularly preferably a claw shape) is stuck in the hole of the sintered body 7, whereby the sintered body 7 can be effectively locked. This can effectively prevent the disinfectant solution storage body 7 from coming off the container body 2.

(Fifth Embodiment)
A disinfection cap according to the fifth embodiment will be described with reference to FIG. The disinfecting cap 40 eliminates the columnar portion 2b provided with the protruding portion 2b, and instead has a protruding portion 2g protruding radially inward from the inner peripheral surface of the container body 2. In addition, the disinfectant solution storage body 8 is provided with a brim portion 8a that projects radially outward from its outer peripheral surface on the bottom side.
In this case, the disinfecting liquid occlusion body 8 is locked inside the container body 2 by insert-molding the protruding portion 2g and engaging the brim portion 8a and the protruding portion 2e during molding of the main body. As a result, it is possible to effectively prevent the disinfectant solution storage body 8 from falling off from the container body 2.

The disinfectant solution occlusion body 8 used in this embodiment may be any of the synthetic fiber bundle, batting and sintered body.
In addition, the case where the disinfecting liquid storage body 8 is locked by insert-molding the protrusion 2g at the time of molding the main body has been described, but the present invention is not limited to this.
For example, the brim portion 8a is not provided on the entire circumference of the antiseptic solution storage body 8 but is provided on a part thereof. On the other hand, a cutout portion is provided in the protruding portion 2g. Then, the brim portion 8a is inserted from the notch in the protruding portion 2g between the bottom surface of the container body 2 and the lower surface of the protruding portion 2g, and the disinfectant solution storage body 8 is rotated with respect to the container body 2 to store the disinfectant solution. The body 8 may be locked.

(Sixth Embodiment)
A disinfection cap according to the sixth embodiment will be described with reference to FIG. In this disinfection cap 50, the brim portion 8a and the protruding portion 2g are not directly engaged but are indirectly engaged via the ring-shaped collar 9.
The collar 9 is mounted in the space between the inner peripheral surface of the container body 2 and the outer peripheral surface of the disinfectant solution storage body 8, presses against the brim portion 8a and the protruding portion 2g, and disinfects inside the container body 2. The liquid occlusion body 8 is locked. As a result, it is possible to effectively prevent the disinfectant solution storage body 8 from coming off the container body 2.

1, 10, 20, 30, 40, 50 Disinfection cap 2 Container body 2b Columnar part 2c Projection part 2d Cavity part 2e Annular convex part 2f Screw part 2g Projection part 3 Lid part 3a Annular convex part 4 Disinfectant storage material (synthetic fiber) bundle)
4a Through hole 5 Heat seal 6 Disinfectant storage material (Batting)
7 Disinfectant storage (sintered body)
8 Disinfectant storage material 8a Collar 9 Color

Claims (2)

In the disinfection cap for needleless connector,
With a bottomed cylindrical container body,
A sealing portion that seals the inside of the container body by sealing the opening of the container body,
A columnar portion that is provided integrally with the container body, is provided upright from the center of the bottom portion of the container body,
A partially depressed depression portion provided at the tip of the columnar portion,
Projecting portions that face each other across the recessed portion and project radially outward from the outer peripheral surface of the columnar portion;
A disinfectant solution storage body that is housed inside the container body, is locked by the protrusion, and is impregnated with a disinfectant solution,
Equipped with
The depth of the depression is deeper than the position of the protrusion provided on the columnar portion, and the depression allows the elastic deformation of the protrusion inward in the radial direction. Disinfection cap for the connector. In the disinfection cap for needleless connector,
With a bottomed cylindrical container body,
A sealing portion that seals the inside of the container body by sealing the opening of the container body,
A projecting portion that projects radially inward from the inner peripheral surface of the container body,
A disinfectant solution storage body that is housed inside the container body, is locked by the protrusion, and is impregnated with a disinfectant solution,
Equipped with
The disinfectant solution occlusion body has a brim portion that projects radially outward from its outer peripheral surface, and is mounted in the space between the inner peripheral surface of the container body and the outer peripheral surface of the disinfectant solution occlusion body. Has a ring-shaped collar,
The disinfecting liquid occlusion body is locked inside the container body when the collar portion and the protruding portion are engaged with each other via the collar , the disinfecting cap for a needleless connector.

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