JPH1156996A - Medical deodorized covering material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently remove a bad smell by forming a deodorized covering material serving as a cover for an infective wound such as an ulcer or the pouch of an artificial bladder of a molded body having an active carbon fiber as a main component. SOLUTION: A medical deodorized covering material is formed of a molded body having an active carbon fiber as main component, and the active carbon fiber is very fast in adsorption speed to a bad smell component, and displays sufficient deodorizing effect even at small amount, and can be formed in various shapes because of its fiber-shape. In addition, the applied active carbon fiber is produced using the fiber of pitch system and acrylic system as a raw material and infusibly activating processed through an ordinary method to form micropores, and in the case where an active carbon fiber having an additionally attached silver element is used as occasions demand, antibacterial ability can be given to the medical deodorized covering material. In this medical deodorized covering material, the active carbon fiber can be molded into a sheet-shape or a felt-shape as it is and used, but used in a state where it is sandwiched between cloths or unwoven members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical deodorizing coating material containing activated carbon fiber as a main component, and more particularly to a pressure ulcer,
The present invention relates to a medical deodorizing covering material suitable for covering an infectious wound such as an ulcer, an artificial anus, and a bag (pouch) of an artificial bladder.

[0002]

2. Description of the Related Art Patients with pressure ulcers and ulcers often have reduced resilience and are susceptible to infection by various bacteria, and once infected, it is difficult to cure. In addition, the infection is accompanied by a bad smell, which is painful for the patient. In the case of home nursing, the burden is not only on the patient but also on the whole family. However, until now, only the healing of wounds has been focused on, and almost no measures have been taken against odors.

[0003] In recent years, not only treating wounds but also improving the quality of life (QOL) of patients has become a major issue. To improve QOL, it is necessary to treat wounds simultaneously. Although it is necessary to remove malodors caused by infected wounds, there has been no deodorant coating material that can effectively remove these malodors.

[0004] In addition, many patients who wear an artificial anus or an artificial bladder can live the same daily life as healthy people, but they are sensitive to odors such as feces, and it is desirable to completely suppress them if possible. I have a request.
In particular, Japanese people are very sensitive to odors, and fecal odors are more of a concern than others.
For this reason, prostheses made of materials that do not allow odor to leak out, deodorants (powder, tablet, liquid, etc.) to be put in bags (pouches), and pads with deodorants are used for colostomy and artificial bladder. A deodorant pat, etc., which is applied to the garment, has been proposed. However, a deodorant placed in a device or bag (pouch) made of a material that does not leak odor will not be able to deodorize the odor of accumulated gas, and will not be effective when removing gas. there were. A deodorant pad that puts a deodorant-containing pad on the brace is effective when degassing gas.However, deodorants that have been used so far are not sufficient to deodorize odors such as manure. Was.

[0005] On the other hand, activated carbon fibers are well known for their deodorizing effect, and include harmful gas adsorption filters (JP-A-1-32725) and antibacterial / adsorption filters (JP-A-7-16).
No. 3640) has been proposed, but it is not known that any of these types of odors can be effectively removed, unlike the odors from infectious wounds of living organisms and the odor of feces.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and not only can it remove odors caused by infectious wounds such as pressure sores and ulcers, but also can be used for appliances such as colostomy and artificial bladder. It is a technical object of the present invention to provide a medical deodorizing coating material that can remove bad odors such as manure if used as a cover for a bag (pouch) and can improve the QOL of a patient.

[0007]

Means for Solving the Invention As a result of intensive studies to solve the above problems, the present inventors have found that if a molded article containing activated carbon fiber as a main component is used, infectious wounds such as pressure ulcers and ulcers can be obtained. The present inventors have found that it is possible to effectively remove malodors such as odors and manure caused by the odor, and arrived at the present invention. That is, the gist of the present invention is a medical deodorizing coating material comprising a molded product containing activated carbon fibers as a main component.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.

[0009] The medical deodorizing coating material of the present invention is formed of a molded product containing activated carbon fibers as a main component. Activated carbon fibers have a significantly higher adsorption rate for malodorous components than granular activated carbon, and can exhibit a sufficient deodorizing effect even in a small amount. Further, since it is fibrous, it can be formed into various shapes, for example, it has excellent cushioning properties, and can be formed into a shape suitable for the amount of material covering the wound.

Activated carbon fibers are formed from fine fibers such as pitch-based, acrylic-based, cellulosic, and phenol-based fibers by infusing and activating the fibers in a usual manner, and have a large specific surface area. It is more preferable to increase the amount of adsorption to the offensive odor component, and it is preferably 500 m ² / g or more, particularly preferably 900 m ² / g. Use of activated carbon fibers impregnated with a silver component is preferable because antibacterial properties can be imparted to the medical deodorizing coating material. The specific surface area is measured by the theoretical equation of BET by adsorption of nitrogen gas.

The medical deodorizing coating material of the present invention can be used by molding activated carbon fiber into a sheet or felt as it is, but it can be sandwiched between woven or non-woven fabrics or at least one surface of a sheet or felt. Nonwoven fabrics such as synthetic fibers and natural fibers, woven fabrics, knitted fabrics and the like may be laminated, or these may be entangled by a needle punch or thermally fused to form a coating material.

Further, activated carbon fiber and a certain amount of thermoplastic synthetic fiber are mixed in a dry or wet manner to form a felt, or the felt is heat-treated to form a part or a part of the thermoplastic synthetic fiber. A material obtained by heat-melting the entirety, or a material obtained by laminating a nonwoven fabric such as a synthetic fiber or a natural fiber, a woven fabric, a knitted fabric, or the like on at least one surface of the felt-like material is used.

The thermoplastic synthetic fibers used above include, for example, polyester, nylon, polyethylene,
There are monocomponent fibers made of polypropylene, copolymerized polyester, and the like, and core-sheath composite fibers made of polyester in the core and polyethylene, polypropylene, copolymerized polyester in the sheath.

When activated carbon fiber and thermoplastic synthetic fiber are mixed, the mixing weight ratio is 98: 2 to 40:60, especially 95: 5 to 5:50.
A range of 50:50 is preferred. If the proportion of the activated carbon fiber is too large, the moldability of the felt-like material tends to decrease, and if it is too small, the adsorptivity of malodorous substances decreases.

The activated carbon fiber and the thermoplastic synthetic fiber are mixed, for example, by putting the activated carbon fiber and the thermoplastic synthetic fiber into a roller card machine at a predetermined ratio, mixing the fibers while hanging the card, and integrating them by a needle punch. A method of forming a felt-like material can be adopted. Also, a method of obtaining a felt-like material by a wet method by a papermaking method while mixing activated carbon fibers and thermoplastic synthetic fibers may be used. In addition, hemp,
Natural fibers such as cotton can also be mixed.

When the medical deodorizing coating material of the present invention is used for wound infections such as pressure ulcers and ulcers, it may be applied directly to the infected wound portion or gauze containing a physiological saline solution (raw gauze). When used to cover a colostomy or an artificial bladder bag (pouch), cover the colostomy bag (pouch) with a bag-shaped deodorizing coating material. Used to remove odors.

[0017]

Next, the present invention will be described specifically with reference to examples.

Example 1 A pitch fiber melt-spun and made infusible from coal pitch was steam-activated at an activation temperature of 850 ° C. for 30 minutes to obtain an activated carbon fiber. This activated carbon fiber is steamed at a temperature of 95
Oxidation treatment was performed under the conditions of 0 ° C., an internal pressure of 0.002 kg / cm ² , and an oxygen concentration of 0.5% by volume, with a treatment time of 5 minutes.
m ² / g, pore volume 0.43 ml / g, average pore diameter 17Å, fiber diameter 15
10% equilibrium moisture at 25 μm, temperature 25 ° C, and relative humidity 60%
% Activated carbon fiber was obtained.

The obtained activated carbon fiber was sandwiched between Travelon FS-5 (polyester nonwoven fabric manufactured by Kanai Kiko Kogyo Co., Ltd.) and integrated with a needle punch to obtain a felt-like material having an activated carbon weight of 40 g / m ² . This felt-like material
It was cut into a size of 20 cm × 20 cm and subjected to a heat sterilization treatment at a temperature of 121 ° C. and a pressure of 15 atm for 15 minutes to obtain a deodorized coating material.

Next, two wounds with full-thickness skin were created on the back of the rabbit, and Pseudomonas aeruginosa was inoculated to artificially create an infected wound. When this was allowed to stand for two days, the bacteria grew and became odorous. In order to cover the wound with the sheet obtained above and examine its performance, each wound was covered with a raw gauze, and one of the wounds was completely covered with a deodorizing coating material on the raw gauze, and the raw gauze was treated with 1 g of the raw gauze. Observation was performed twice a week while exchanging. As a result, although the wound condition hardly changed over time in both of the two places, the side coated with the deodorizing coating material from the top showed a reduced odor immediately after the coating, showing an excellent deodorizing effect.

Example 2 The activated carbon fiber obtained in Example 1 and Melty 3380 (polyester core-sheath conjugate fiber manufactured by Unitika) in a weight ratio of 70:
After mixing into a roller card machine at a ratio of 30 and hanging the card, the fibers are blended and then integrated with a needle punch.
The melty material and the activated carbon fiber were thermally fused at a temperature of 85 ° C. to obtain a felt-like material. Then, the felt-like material was prepared in a bag shape, and sterilized with an ethylene oxide gas to obtain a deodorizing coating material.

When the obtained bag-shaped deodorizing coating material was used so as to cover the entire bag (pouch) of a patient having a colostomy, no smell was felt even if manure accumulated, and The degree of freedom of going out was increased, and the patient's QOL improved.

Example 3 The felt-like material obtained in Example 2 was cut into a size of 3 cm × 3 cm to obtain a deodorizing coating material. Next, a small hole was made in the bag (pouch) with an incense stick, and when the accumulated gas was removed, the gas was removed by applying the deodorizing coating material to the hole and passing through the felt-like material. Was absorbed by the deodorizing coating material, and no odor was separated.

[0024]

The medical deodorizing coating material of the present invention can be used as a bag (pouch) for infected wounds such as pressure ulcers, ulcers, etc., artificial anus, and artificial bladder.
If it is used as a cover, it can effectively remove odor, and the patient's QOL by removing the odor from the affected area
It is effective as a coating material that can be expected to improve the quality of life and reduce the burden on people who are nursing and treating.

Claims (2)

[Claims] 1. A medical deodorizing coating material comprising a molded product containing activated carbon fibers as a main component. 2. Infectious wounds such as pressure ulcers and ulcers, colostomy,
The medical deodorizing coating material according to claim 1, which is for covering a bag (pouch) of an artificial bladder.