JP2005287985A - Inflammation/odor suppressing member, manufacturing method thereof, and prosthesis and cast using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inflammation/odor suppressing member which suppresses inflammation of a skin in an environment where irritation of the skin is easily triggered, and suppresses an odor. <P>SOLUTION: The inflammation/odor suppressing member has anodized coatings provided at least at a part of a surface of a main body of a base material made of aluminum or an aluminum alloy, one kind or more than two kinds of metals out of silver, copper, gold, and platinum deposited at least at a part of the anodized coatings, and a nonwoven fabric provided at least at a part of the surface of the main body of the base material. The irritation and the itching at the end part of amputated hands and legs and the odor in an attaching socket are suppressed, and the occurrence of phantom limbs felt by people wearing prosthetic limbs is reduced by attaching the inflammation/odor suppressing member to the inner surface of the attaching socket of the prosthetic limb. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an inflammation / odor control member that suppresses the occurrence of skin inflammation and / or odor (throughout this specification, the inflammation and / or odor control member is expressed as “inflammation / odor control member”) and to produce the same And a prosthesis and a cast using the inflammation / odor control member.

  For example, a person who has cut a leg and a lower part thereof due to a traffic accident or the like attaches a prosthetic leg as a substitute for the cut leg to a leg proximal to the knee, and walks using this prosthetic leg. A prosthetic leg as an example of such a prosthetic body includes a mounting socket (a so-called thigh socket) to be attached to a cut end of a cut leg and a foot for walking, and the mounting socket and the foot are knees. It is connected via a shaft so that the foot bends and extends with respect to the mounting socket during walking (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-19105

  In such a state of use of the artificial leg, the cut end portion of the leg is inserted into the mounting socket and kept in a substantially sealed state, and the environmental condition in the mounting socket becomes very bad. Therefore, it becomes easy to be stuffy due to secretions such as sweat and fat, and it is easy for bacteria to propagate. Therefore, in summer, the skin may be irritated due to stuffiness, and itching may occur due to this. Further, in such an easily sultry environment, malodors are likely to occur due to various germs that have propagated. For this reason, people wearing prosthetic legs are bothered by stuffiness and itching due to skin inflammation, and sometimes phantom limb pain (feeling pain and itching as if the limbs remain even after limb amputation) You may be troubled. Also, when the prosthetic leg is removed, there may be a bad smell around it.

  One way to solve this problem is to keep the prosthetic leg socket clean, but in order to keep it clean, prosthetic legs that have been worn for a long time are very clean and disinfected. In addition, it takes time for cleaning and disinfection, which is a heavy burden on the prosthetic leg user.

  In addition, the person who cut the hand (or arm) uses a prosthetic hand as another example of a prosthetic body, and this prosthetic hand also has a mounting socket to be attached to the cut end of the arm. Since the mounting socket of the prosthetic hand is also kept in a substantially sealed state and the environmental condition in the mounting socket is very bad, there is a problem similar to that described above with the prosthetic leg.

  Moreover, when a leg, an arm, or the like is broken, a cast is used to treat the bone. Even in the state where the cast is used, the interior of the cast is kept almost sealed, the use environment is very bad, and there is a problem similar to the above-mentioned prosthetic body.

An object of the present invention is to provide an inflammation / odor control member that can suppress skin irritation and odor generation in an environment in which skin irritation tends to occur, and that is also gentle to the skin.
Another object of the present invention is to provide a prosthetic body and a cast that are gentle to the skin while suppressing the occurrence of rash and itching due to inflammation of the skin and the generation of odor.

  Still another object of the present invention is to provide a method for producing an inflammation / odor control member capable of having an inflammation suppression effect and an odor suppression effect by surface treatment.

  The inflammation / odor control member according to claim 1 of the present invention is provided with an anodized film on at least a part of a surface of a base material body formed of aluminum or an alloy thereof, and silver is formed on at least a part of the anodized film. One or more metals of copper, gold and platinum are deposited, and at least a part of the surface of the base material body is covered with a nonwoven fabric.

  The inflammation / odor control member according to claim 2 of the present invention is provided with a titanium oxide film on at least a part of the surface of the base material main body, and at least a part of the surface of the base material main body is covered with a nonwoven fabric. It is characterized by.

  A prosthetic body according to claim 3 of the present invention comprises the inflammation / odor control member according to claim 1 or 2 and a mounting socket for mounting on a part of a human body, and the inflammation / odor control. A member is attached to the inner surface of the mounting socket and is closely adhered to the skin surface via a nonwoven fabric, and the inflammation / odor control member prevents the occurrence of inflammation on the skin surface by the antibacterial action of the deposited metal or titanium oxide film. It is characterized by suppressing the generation of odor in the socket.

  Moreover, the cast of Claim 4 of this invention is equipped with the inflammation / odor suppression member of Claim 1 or 2, and the Gibbs main body with which a human body is mounted | worn in part, The said inflammation / odor suppression member is provided. Arranged on the inner surface side of the Gibbs body and held on the skin surface via a non-woven fabric, suppresses inflammation on the skin surface by the antibacterial action of the deposited metal or titanium oxide film of the inflammation / odor control member, It is characterized by suppressing the generation of odor.

  According to a fifth aspect of the present invention, there is provided a method for producing an inflammation / odor control member comprising: a base material body made of aluminum or an alloy thereof, silver nitrate, sulfuric acid in a sulfuric acid bath, an oxalic acid bath, or a mixed bath thereof. In an electrolytic solution to which silver, copper nitrate, or copper sulfate, or a mixture of silver nitrate or silver sulfate and copper nitrate or copper sulfate is added, an AC / DC superimposed current, a PR current that passes a negative wave, or a negative wave is passed Electrolytic treatment is performed by applying either a pulse or an alternating current, thereby forming an anodic oxide film on the surface of the member body, and simultaneously adding the added silver nitrate, silver sulfate, copper nitrate or copper sulfate metal to the anodic oxide film. It is characterized in that a nonwoven fabric is provided on at least a part of the surface of the base material main body which has been deposited on the surface and then surface-treated in this way.

  In the method for producing an inflammation / odor control member according to claim 6 of the present invention, a base material body formed of aluminum or an alloy thereof is immersed in a sulfuric acid bath, an oxalic acid bath, or a mixed bath thereof. An anodized film is formed on the surface, and then, in an electrolytic solution to which silver nitrate, silver sulfate, copper nitrate and copper sulfate, or a mixture of silver nitrate or silver sulfate and copper nitrate or copper sulfate is added, Electrolytic treatment is performed by applying either AC / DC superimposing current, negative wave PR current, negative wave pulse or alternating current, and the added silver nitrate, silver sulfate, copper nitrate or copper sulfate metal is anodized. Then, a non-woven fabric is provided on at least a part of the surface of the base material main body which has been precipitated and then surface-treated in this way.

  According to the inflammation / odor control member according to claim 1 of the present invention, an anodic oxide film is formed on the base material main body, and one or two or more kinds of metals of silver, copper, gold and platinum are formed on the anodic oxide film. When deposited, if the inflammation / odor control member is in a high humidity environment, the deposited metal is ionized and released to the surroundings through the nonwoven fabric. The deposited metal has an antibacterial action, and metal ions (silver, copper, gold, platinum ions) released from the metal exert a stronger antibacterial action. Therefore, when metal ions are released in this way, their strong antibacterial action significantly reduces the growth of germs even on the skin surface where the germs are easily stuffy due to secretions such as sweat and fat. Thus, it is possible to suppress the occurrence of skin irritation, itching and the like. Further, since the number of germs is reduced, there is almost no odor due to the breeding, and the generation of odor can be suppressed. The anodic oxide film may be formed on at least a part or all of the base material body, and the metal may be deposited on at least a part or all of the anodic oxide film. In addition, the use of the inflammation / odor suppressing member may be performed by contacting or holding the inflammation / odor suppressing member in contact with a portion where skin surface irritation or the like is likely to occur.

  Moreover, since at least a part of the surface of the base material body is covered with the nonwoven fabric, the nonwoven fabric protects the skin and does not damage the surface. This non-woven fabric is preferably provided over the entire area in contact with the skin, so that the non-woven fabric is brought into contact with or in close contact with the skin surface through the non-woven fabric, and no uncomfortable feeling due to the hard feeling of the base material body occurs. For example, even in the case of a person who is allergic to metal, it can be used as it is, so it is easy to handle. The nonwoven fabric is formed in a mesh shape, for example, and the size of the mesh is sufficiently larger than the size of the metal ions, so that the metal ions are released to the surroundings through the nonwoven fabric, and the above-described effects can be produced.

  According to the inflammation / odor control member according to claim 2 of the present invention, the titanium oxide film is provided on at least a part of the surface of the base material body. Titanium oxide generates active oxygen having an oxidizing effect, and the active oxygen decomposes organic substances adhering to the surface, thereby producing deodorizing and antibacterial actions. By providing such a deodorizing and antibacterial titanium oxide film on at least a part of the surface of the base material body, it is easy to get stuffy due to secretions such as sweat and fat, and on the skin surface where bacteria can easily propagate. It is possible to suppress the propagation of various germs, thereby suppressing the occurrence of rash, itching and the like on the skin surface, and also the generation of odor due to the various germs. Titanium oxide generally produces deodorant and antibacterial effects when exposed to light, but some of these functions even when not exposed to light. Deodorant and antibacterial action can be obtained even if it is not hit. The effect of the nonwoven fabric provided on the surface of the base material body is the same as described above.

  Moreover, according to the artificial body according to claim 3 of the present invention or the cast of claim 4, the inflammation / odor control member is mounted on the mounting socket or the body of the cast that is mounted on a part of the human body. The odor control member is brought into contact with the cut surface of a part of the human body or the skin surface of the fracture treatment unit via a nonwoven fabric.

  A prosthetic body is a substitute for a part of the human body, such as a prosthetic hand or a prosthetic leg. A person who has cut off a leg uses a prosthetic leg mounting socket at the cut end of the leg, and uses a hand (arm). The person who cuts the arm uses the prosthetic hand mounting socket attached to the cut end of the arm. For example, when the prosthetic leg is in use, the cut end portion of the leg is inserted into the mounting socket, the inside of the mounting socket is maintained in a substantially sealed state, and the usage environment is very bad in summer. In such a use environment, when secretions such as sweat and fat from the cut end of the leg are secreted, these secretions make it easy for germs to propagate. As a result, the cut end of the leg was irritated and itchy. When the inflammation / odor control member is attached to the inner surface of the mounting socket so as to contact the cut end of the leg, the antibacterial action of the inflammation / odor control member suppresses and reduces the propagation of various bacteria. Occurrence of rash, itch and the like at the cut end portion of the leg to be performed is suppressed, and generation of odor in the mounting socket is also suppressed. Therefore, by using this inflammation / odor control member for a prosthetic body such as a prosthetic hand, a prosthetic leg, etc., to improve the environment of the state of use thereof, and to provide a clean and uncomfortable use environment for the prosthetic wearer Can do.

  Wearers such as prosthetic hands and prosthetic legs may also suffer from phantom limbs. The phantom limb is a state in which the memory before the amputation of the limbs cannot be erased and is confused in the head. It is said to be one of the manifestations of discomfort in the state of wearing a prosthetic hand and a prosthetic leg. When this inflammation / odor control member is used, the antibacterial action against germs at the cut end of the leg (arm) is exhibited, the propagation of germs is suppressed, and the skin condition at the cut end can be improved. Therefore, the discomfort due to use is almost eliminated, and unpleasant phantom limb pain and phantom limb itch can be greatly reduced.

  Also, for example, even when the cast is in use, the treatment site such as a fracture is covered with the cast, and the interior of the cast is kept almost sealed. Although it is in a very bad state, by placing an inflammation / odor control member in the body of this cast, the use environment is greatly improved by its antibacterial and deodorizing effects, and it is clean and uncomfortable for the caster. It is possible to provide a use environment without any problem.

  Inflammation / odor control members with silver, copper, gold, and platinum deposited on the anodized film, particularly those with silver and copper, have a very strong antibacterial action and provide a better environment for wearers Therefore, the occurrence of rash and itching can be greatly suppressed, and the generation of odor can be greatly suppressed.

  According to the surface treatment method of claim 5 of the present invention, a sulfuric acid bath, an oxalic acid bath or a mixed bath thereof is used as an electrolytic solution, and silver nitrate, silver sulfate, copper nitrate and sulfuric acid are used in the electrolytic bath. Either copper or a mixture of silver nitrate or silver sulfate and copper nitrate or copper sulfate is added. And, since the electrolytic treatment is performed by applying either AC / DC superimposed current, PR current that flows minus waves, or pulse or AC current that flows minus waves in the electrolyte, the base material body formed of aluminum or its alloy At the same time as the anodic oxide film is formed on the surface of the metal, silver nitrate, silver sulfate, copper nitrate or copper sulfate metal (silver, copper) added to the anodic oxide film is deposited. And silver or copper deposition. And after such a surface treatment, a nonwoven fabric is provided in at least one part of the surface. In the thus produced inflammation / odor control member, the deposited metal (silver, copper) is ionized and released to the surroundings through the nonwoven fabric in a high humidity environment, and thus exerts a strong antibacterial action. It can be used as an inflammation suppressing member that suppresses inflammation of the skin caused by various bacteria, and as an odor suppressing member that suppresses the generation of odor caused by various bacteria. In addition, it is preferable to provide a nonwoven fabric so that it may become integral with a base-material main body by press work etc.

  According to the surface treatment method of claim 6 of the present invention, a sulfuric acid bath, an oxalic acid bath or a mixed bath thereof is used, and the member body is immersed in the electrolytic bath for electrolytic treatment. An anodized film is formed on the surface. Thereafter, as the second electrolytic treatment, an electrolytic solution in which any of silver sulfate, silver nitrate, copper nitrate, copper sulfate, or a mixture of silver nitrate or silver sulfate and copper nitrate or copper sulfate is added is used. Electrolytic treatment is performed by adding either AC / DC superimposed current, negative current PR current, negative current pulse or AC current, so silver nitrate, silver sulfate, copper nitrate or copper sulfate added to the anodized film The metal (silver, copper) is deposited, and silver or copper can be deposited by surface treatment in this way. After the surface treatment in this way, a nonwoven fabric is provided on at least a part of the surface of the base material body. The inflammation / odor control member manufactured in this way also exerts a strong antibacterial action by releasing metal ions to the surroundings through the nonwoven fabric, as described above, and therefore suppresses skin inflammation caused by various bacteria. It can be used as an inflammation suppressing member, as an odor suppressing member that suppresses the generation of odor due to various bacteria, and further as a suppressing member that suppresses phantom limb pain.

Hereinafter, an inflammation / odor control member according to the present invention, a manufacturing method thereof, and a prosthetic body and a cast using the same will be described with reference to the accompanying drawings.
First, with reference to FIG. 1, the manufacturing method of the inflammation / odor control member according to this invention is demonstrated. FIG. 1 is a simplified diagram schematically showing an example of a surface treatment apparatus used for carrying out the manufacturing method according to the present invention.

  In FIG. 1, the illustrated surface treatment apparatus includes a rectangular parallelepiped electrolytic cell 2, and electrodes 4 and 6 are disposed on both sides of the electrolytic cell 2. In this embodiment, the electrodes 4 and 6 are composed of four plate-like electrodes 8 and 10 arranged at intervals in the longitudinal direction of the electrolytic cell 2 and in the left-right direction in FIG. 10 is formed from carbon. The electrodes 4 and 6 are electrically arranged in parallel, the four plate electrodes 8 of one electrode 4 are electrically connected in series, and the four plate electrodes 10 of the other electrode 6 are electrically connected. Connected in series.

  Between the pair of electrodes 4 and 6, base material bodies 12 and 14 to be surface-treated, specifically, members 12 and 14 to be surface-treated are disposed. One base material body 12 is disposed on the inside facing the electrode 4, and the other base material 14 is disposed on the inside facing the electrode 6. The base materials 12 and 14 are made of aluminum or an aluminum alloy, and the shape thereof is formed into, for example, a thin foil shape, a thin plate shape, a fiber shape, an elongated wire shape, or the like. In this surface treatment apparatus, the base material bodies 12 and 14 formed of aluminum or an alloy thereof are subjected to surface treatment as described later.

  The electrolytic cell 2 is filled with an electrolytic solution for surface treatment, and the base material bodies 12 and 14 to be treated are immersed in the electrolytic solution. As the electrolytic solution, a sulfuric acid bath, an oxalic acid bath, or a mixed bath thereof is used. Then, silver nitrate or copper nitrate as the metal nitrate, or silver sulfate or copper sulfate as the metal sulfate, or a mixture of silver nitrate or copper nitrate and silver sulfate or copper sulfate is added to such an electrolytic bath. When using a sulfuric acid bath, sulfuric acid is dissolved at a rate of, for example, 100 to 300 g / liter, and when using an oxalic acid bath, oxalic acid is dissolved at a rate of, for example, 20 to 40 g / liter.

  Moreover, silver nitrate or silver sulfate added to such an electrolytic bath is added at a rate of 2 to 12 g / liter, for example. If the amount of silver nitrate or silver sulfate is less than 2 g / liter, the amount of silver deposited when the surface treatment is performed decreases, and if the amount of silver nitrate or silver sulfate exceeds 12 g / liter, the anodized film is formed when the surface treatment is performed. Pits (pitting corrosion) occur in the film, and film defects are likely to occur.

  Further, instead of silver nitrate or silver sulfate, copper nitrate or copper sulfate may be added. In this case, the added copper nitrate or copper sulfate is added at a rate of 2 to 12 g / liter, for example. . When the amount of copper nitrate or copper sulfate is less than 2 g / liter, the amount of copper deposited when the surface treatment is performed decreases, and when the amount of copper nitrate or copper sulfate exceeds 12 g / liter, the anode is formed when the surface treatment is performed. Pits (pitting corrosion) occur in the oxide film, and film defects are likely to occur.

  When surface treatment is performed on the base metal bodies 12 and 14, an AC / DC superimposed current, that is, a current in which an alternating current and a positive current of a DC current are superimposed is applied to the base body bodies 12 and 14, and such a current is applied. In addition, the base metal bodies 12 and 14 are subjected to electrolytic treatment. In this embodiment, the positive side of the DC power supply 16 is electrically connected to the reactor 18, and the negative side of the DC power supply 16 is electrically connected to the electrodes 4 and 6 (plate-like electrodes 8 and 10). Furthermore, the AC power source 20 is electrically connected to the reactor 18, and the reactor 18 superimposes the positive current of the DC power source 16 on the AC current from the AC power source 20, and the base material body 12 to process the superimposed superimposed current. , 14.

During the surface treatment, the current density is selected to be in the range of, for example, 1 to 10 A / dm ^{2 and} the current density is continuously energized for a predetermined set time. When the current density exceeds 10 A / dm ² , discoloration such as burns easily occurs in the anodized film formed by the surface treatment, and discharge occurs at the contact portion between the base material bodies 12 and 14 and the jig holding the same. It is easy to cause damage. On the other hand, when the current density is smaller than 1 A / dm ² , the current flowing in the electrolyte is small, and the surface treatment efficiency is deteriorated.

  At the time of this surface treatment, the temperature of the electrolytic bath is selected to be in the range of, for example, −10 to 25 ° C. When the temperature of the electrolytic bath exceeds 25 ° C., the anodized film formed on the surfaces of the base material bodies 12 and 14 becomes soft, and in some cases, a flat film cannot be obtained. On the other hand, when the temperature of the electrolytic bath is lower than −10 ° C., the treatment efficiency of the surface treatment is deteriorated and the surface treatment cost is increased.

  When the surface treatment is performed on the base material bodies 12 and 14 using the surface treatment apparatus described above, the surfaces of the base material bodies 12 and 14 are formed as shown in FIG. Referring to FIG. 2 showing a part of base material bodies 12 and 14 in an enlarged manner, when the surface treatment described above is performed, anodized film 22 is formed on the surfaces of base material bodies 12 and 14 formed of aluminum or an alloy thereof. (So-called alumite coating) is formed. The anodized film 22 is composed of a barrier layer 24 formed on the surfaces of the base material bodies 12 and 14 and a porous layer 26 formed on the surface of the barrier layer 24. The thickness of the barrier layer 24 is as follows. The porous layer 26 is formed to have a thickness of about 0.01 to 0.1 μm and a thickness of the porous layer 26 of about 10 to 200 μm.

  When the surface treatment method described above is used, silver nitrate (or silver sulfate) silver 30 or copper nitrate (or copper sulfate) copper is deposited in a large number of holes 28 present in the porous layer 26. Since silver 30 (or copper) precipitates in this way, antibacterial properties are imparted to the base material bodies 12 and 14, and by using the base material bodies 12 and 14, the propagation of various bacteria is suppressed and the clean state is maintained. Can keep. In particular, the silver 30 (or copper) deposited by the above-described processing method is ionized by the silver (or copper) being ionized in an environment with a lot of moisture (for example, when immersed in water or placed in a humid environment). Released and ionized silver (or copper) exerts a strong antibacterial action. In the embodiment described above, the electrolytic treatment is performed by applying an AC / DC superimposed current at the time of the surface treatment, but instead of the AC / DC superimposed current, a PR current for passing a negative wave, a pulse for passing a negative wave, or an AC current is added. However, as described above, a predetermined surface treatment can be performed by a single electrolytic treatment, and the anodic oxide coating 22 is formed on the surfaces of the base material bodies 12 and 14, and the formed anodic oxidation is performed. Silver 30 (or copper) can be deposited on the coating 22.

  In the above-described embodiment, the anodic oxide coating 22 is formed on the surfaces of the base material bodies 12 and 14 by a single electrolytic treatment, and at the same time, silver 30 or copper is deposited on the anodic oxide coating 22. The formation of the anodized film 22 and the deposition of silver 30 or copper may be performed in separate steps. In this case, the base metal bodies 12 and 14 are immersed in a sulfuric acid bath, an oxalic acid bath or a mixed bath thereof and subjected to an anodizing treatment, and then electrolysis in which silver nitrate or silver sulfate (or copper nitrate or copper sulfate) is added. In this way, the anodic oxide film can be formed and silver or copper can be deposited on the anodic oxide film. In this case, the current of the electrolytic treatment is determined by adding various currents, for example, currents such as alternating current, AC / DC superimposed current, PR current flowing negative waves, or pulse current flowing negative waves, which are commercial power sources. The electrolytic treatment can be performed.

  In the above-described embodiment, silver (or copper) is deposited on the surface of the anodic oxide coating by one (or two) electrolytic treatment, but gold or platinum exhibiting an antibacterial effect is deposited. May be.

  After performing the surface treatment as described above, the nonwoven fabric 32 is provided on the surfaces of the base material bodies 12 and 14. As shown in FIGS. 3 and 4, the nonwoven fabric 32 is provided so as to cover the entire surface of the surface-treated base material bodies 12, 14, but may be provided on one side, and at least one of the surfaces thereof may be provided. It may be provided at the part, and is preferably provided at a site in contact with the skin surface. For example, the non-woven fabric 32 is provided with the non-woven fabric 32 on both sides of the base material bodies 12 and 14 and is pressed with a predetermined pressure, thereby ensuring the breathability of the non-woven fabric 32 and the base material bodies 12 and 14. And can be integrated. Instead of integrating in this way, a bag-like member may be formed in advance with a non-woven fabric and housed in the bag-like member. The characteristics of the inflammation / odor control member manufactured in this way will be described later.

  In the embodiment described above, one or more of silver, copper, gold, and platinum are deposited. However, instead of such deposition, a titanium oxide film may be provided on the base material body. In this case, the base material body is, for example, a metal material such as aluminum, stainless steel, copper, or iron, or a metal fiber in which they are in the form of fibers. The titanium oxide film can be formed by applying a known processing method to the base material body, for example, applying titanium oxide to the base material body at a high temperature. Even when a titanium oxide film is provided in this way, an unpleasant odor can be suppressed by the deodorization and antibacterial action due to the action of active oxygen generated by the titanium oxide film on the surface of the base material body, and the propagation of various bacteria Can be suppressed.

  The inflammation / odor suppressing member produced by the surface treatment and the coating of the nonwoven fabric 32 described above can be used as an inflammation suppressing member for suppressing skin inflammation and / or as an odor suppressing member for suppressing the generation of odor. It can be conveniently applied to prosthetics, gibbs and the like.

  Next, an example in which the inflammation / odor suppressing member is applied to the artificial leg will be described with reference to FIG. The illustrated artificial leg 52 includes a mounting socket 54 (so-called thigh socket) to be mounted on the cut end portion of the cut leg and a foot portion 56 for walking, and the lower end portion of the mounting socket 54 and the foot portion 56. The upper end portion is connected via a knee shaft 58, and the foot portion 56 is configured to bend and advance with respect to the mounting socket 54. A mounting recess 60 is provided at the upper end of the mounting socket 54, and the upper surface of the mounting recess 60 is open. The mounting socket 54 is mounted so that the cut thigh cut end 62 of the leg is inserted into the mounting recess 60.

  In such an artificial leg 52, the inflammation / odor control member 64 manufactured as described above is mounted on the inner surface of the mounting socket. In this embodiment, a mounting recess 63 is provided at a predetermined portion on the inner surface of the mounting socket 54, and the inflammation / odor suppressing member 64 is mounted so as to be accommodated in the mounting recess 63. The inflammation / odor control member 64 is formed in a thin plate shape, and both surfaces thereof are covered with the nonwoven fabric 32 (see FIGS. 3 and 4), and the nonwoven fabric 32 is attached so as to be in contact with or in close contact with the skin surface of the thigh cut end 62. It is attached to the socket 54. In this embodiment, it is configured to be accommodated in the mounting recess 63 of the mounting socket 54. However, when the inflammation / odor control member 64 is thin, the mounting recess 54 is not provided on the inner surface of the mounting socket 54. You may make it attach directly.

  The artificial leg 52 to which the inflammation / odor suppressing member 64 is attached as described above has the following characteristics. When the mounting socket 54 is attached to the cut end 62 of the leg, as can be understood from FIG. 5, the inside of the mounting socket 54 is kept in a substantially sealed state, and the usage environment is very bad. When secretions such as sweat and fat from the end 62 are secreted, miscellaneous bacteria can be easily propagated by these secretions, and the rash of the cut end 62 of the leg is caused by the propagation of these miscellaneous bacteria. There are problems that itching occurs and an unpleasant odor is generated in the mounting recess 60 of the mounting socket 54. In response to such problems, when the prosthetic foot 52 equipped with the inflammation / odor control member 64 is used, the antibacterial action of the inflammation / odor control member 64, particularly silver ions released from the precipitated silver 30 (or from the titanium oxide film). Due to the strong antibacterial action due to the generated active oxygen), the propagation of various germs is suppressed and reduced, whereby the occurrence of rash and itching of the cut end 62 of the leg due to the various germs is suppressed, and the mounting socket 54 Odor generation in the mounting recess 60 is also suppressed, and the artificial leg 52 can be kept clean and uncomfortable. Although the wearer of the prosthetic leg 52 may suffer from phantom limbs, the antibacterial effect on the germs at the cut end 62 of the leg is exerted and the propagation of the germs is suppressed. The condition can be improved, so that discomfort due to use is almost eliminated, and unpleasant phantom limb pain, phantom limb itching can be greatly reduced.

  In addition, in this artificial leg 52, since the surface of the inflammation / odor control member 64 is covered with the nonwoven fabric 32 (see FIGS. 3 and 4), the cut end portion 62 of the leg can be protected by the nonwoven fabric 32. It is possible to prevent the base material bodies 12 and 14 of the inflammation / odor control member 64 from directly contacting the skin surface and damaging the skin. Since the nonwoven fabric 32 has air permeability, metal ions (for example, silver ions) released from the deposited metal of the inflammation / odor control member 64 flow to the surroundings through the nonwoven fabric 32, and are thereby accommodated in the mounting socket 54. The cut end 62 can be spread over substantially the entire skin surface.

  In FIG. 5, the example in which the inflammation / odor suppressing member 64 is mounted on the prosthetic leg 52 as a prosthetic body has been described. However, the present invention is not limited to the prosthetic leg 52 and can be similarly applied to a prosthetic hand as a prosthetic body.

  In the above-described example, the inflammation / odor suppressing member 64 is applied to the prosthetic leg 52, but the present invention can be applied to the cast. In particular, Gibbs cannot be removed when plaster is hardened, so it is easy for bacteria to propagate inside the Gibbs from secretions such as sweat and fat from the wearing parts such as feet and arms, and the environment inside the Gibbs is very bad. It becomes a state. When applying to a cast, before the gypsum is solidified to form the cast body, an inflammation / odor control member is held on the surface of the skin to be treated, such as a bone joint, so that it adheres to the skin with a bandage, etc. The treatment site is solidified with the cast body. As described above, even when the inflammation / odor control member 64 is provided inside the gibbs body, the antibacterial action suppresses the propagation of various germs, and the environment inside the gibbs can be improved.

[Examples and Comparative Examples]
Example 1
In order to confirm the effect of the inflammation / odor control member, the aluminum foil base material was subjected to a surface treatment under the following conditions.
As Example 1, the surface treatment apparatus shown in FIG. 1 was used, and an electrolytic treatment was performed using an electrolytic solution obtained by adding 5 g / liter of silver sulfate to a sulfuric acid bath of 100 g / liter of sulfuric acid. Aluminum foil (length 50 mm × width 50 mm × thickness 0.08 mm) was used as the base material body, and this aluminum foil was the anode (plus) side and the carbon electrode was the cathode (minus) side. The temperature of the electrolytic solution during the electrolytic treatment was 15 ° C., and during the electrolytic treatment, an AC / DC superimposed current with an AC / DC current ratio of 1: 1 was applied. The current density of the electrolytic current is 1.0 A / dm ² , and the electrolytic treatment is performed for 10 minutes under the above conditions to form an anodized film (thickness: 2 μm) on the surface of the aluminum foil. Silver was precipitated. Thereafter, the surface-treated aluminum foil was pressed by sandwiching a nonwoven fabric of mesh 400 # from both sides, and the nonwoven fabric was pressed on both sides of the aluminum foil to produce an inflammation / odor control member (Example 1).

Example 2
As Example 2, the same surface treatment apparatus as in Example 1 was used, and a plate made of aluminum (material: A1100) (length 50 mm × width 50 mm × thickness 1.0 mm) was used as the base material body, and sulfuric acid of 200 g / liter of sulfuric acid was used. Electrolytic treatment was performed using an electrolytic solution in which 10 g / liter of silver nitrate was added to the bath. The conditions for the electrolytic treatment were the same as in Example 1. This electrolytic treatment was performed to form an anodized film on the surface of the aluminum plate, and silver was deposited on the anodized film. Then, the aluminum plate which performed this surface treatment was put into the nonwoven fabric bag-like member of mesh 400 #, and the inflammation / odor control member was manufactured (Example 2).

Example 3
An electrolytic solution in which the same surface treatment apparatus as in Example 1 was used as Example 3 and the same aluminum foil as in Example 1 was used as the base material body, and 10 g / liter of silver sulfate was added to a sulfuric acid bath of 100 g / liter of sulfuric acid. Was used for the electrolytic treatment. The conditions for the electrolytic treatment were the same as in Example 1. This electrolytic treatment was performed to form an anodized film on the surface of the aluminum foil, and silver was deposited on the anodized film. Thereafter, a non-woven fabric of mesh 400 # was press-bonded to one side of the surface-treated aluminum foil by press working to produce an inflammation / odor control member (Example 3).

Example 4
Example 4 uses the same processing apparatus as Example 1, and uses an electrolytic solution in which aluminum fiber (length 50 mm × width 50 mm) is used as a base material body and silver nitrate 5 g / liter is added to a sulfuric acid bath of 300 g / liter sulfuric acid. Electrolytic treatment was performed. The conditions for the electrolytic treatment were the same as in Example 1. This electrolytic treatment was performed to form an anodized film on the surface of the aluminum fiber, and silver was deposited on the anodized film. Thereafter, the surface-treated aluminum fibers were put into a non-woven bag member of mesh 400 # to produce an inflammation / odor control member (Example 4).

Example 5
As Example 5, an aluminum plate (length 50 mm × width 50 mm × thickness 1.0 mm) was used as a base material body, titanium oxide was applied to the aluminum plate, and the plate was heated at a temperature of about 150 ° C. for 30 minutes to oxidize. The titanium film was formed by immobilization. Thereafter, the aluminum plate subjected to this treatment was placed in a bag-shaped member of mesh 400 # to produce an inflammation / odor control member (Example 5).

Comparative Example 1
As Comparative Example 1, the same surface treatment apparatus as in Example 1 was used, the same aluminum plate as in Example 2 was used as the base material body, and electrolytic treatment was performed using a sulfuric acid bath of 150 g / liter of sulfuric acid. The conditions for the electrolytic treatment were the same as in Example 1. This electrolytic treatment was performed to form an anodized film on the surface of the aluminum plate. Thereafter, the aluminum plate subjected to the surface treatment was put in a non-woven bag-like member of mesh 400 #, and was produced as Comparative Example 1.

Comparative Example 2
As Comparative Example 2, a pure copper plate was used. The size of the plate was the same as the base metal body of the aluminum plate of Example 2 (length 50 mm × width 50 mm × thickness 1.0 mm). A comparative example 2 was prepared by putting this pure copper plate into a non-woven bag member of mesh 400.

Suppression confirmation test such as rash and itching at the cut end of the leg Using Examples 1 to 5 and Comparative Examples 1 and 2, a suppression check test for rash and itch at the cut end of the leg and the hand was performed. In Examples 1 and 3, the nonwoven fabric was directly attached to the cut ends of the legs and hands (stump feet, stump hands) with adhesive tape so that the nonwoven fabric was in close contact with the skin, and Examples 2, 4, and 5 were used. In Comparative Examples 1 and 2, the nonwoven fabric was mounted on the inner peripheral surface of the mounting socket for the artificial leg and the prosthetic hand so that the nonwoven fabric was in contact with the skin. Examination of the occurrence of rash and itching of the cut surfaces of the legs and hands when using Examples 1 to 5 and Comparative Examples 1 and 2 as described above, and the occurrence of phantom limbs (pain, itching) It was. The results of the occurrence of rash and itching at the cut ends of the legs and arms are as shown in Table 1, and the results of the occurrence of phantom limbs are as shown in Table 2.

表１の結果から理解されるように、実施例１〜４を用いた義足及び義手ではいずれも３０日間使用しても足及び手の切断端部の皮膚のかぶれ、かゆみは発生せず、実施例５では、使用から２２日目でかぶれ、かゆみが少し発生したが、３０日目でもかぶれ、かゆみの程度は少しであった。これに対して、比較例１では使用から７日目でかぶれ、かゆみが大きく発生し（７日目以降の使用を中止した）、また比較例２では使用から７日目でかぶれ、かゆみが少し発生し、１４日目でかぶれなどが大きくなった（１４日目以降の使用を中止した）。これらの結果から、比較例１及び２では皮膚のかぶれ、かゆみの発生をほとんど抑制することができないが、実施例５では酸化チタン膜から発生する活性酸素の消臭抗菌作用によりある程度皮膚の状態を改善することができ、また実施例１〜４では、いずれも、析出した銀の抗菌作用により皮膚のかぶれ、かゆみの発生を充分に抑え、１カ月使用しても皮膚のかぶれ、痒みが発生せず、皮膚の状態を大幅に改善できることが確認できた。

As can be understood from the results in Table 1, both the prosthetic leg and the prosthetic hand using Examples 1 to 4 did not cause skin irritation and itching at the cut end of the foot and hand even when used for 30 days. In Example 5, the rash and itching occurred slightly on the 22nd day after use, but the rash and itchiness were slight even on the 30th day. In contrast, in Comparative Example 1, irritation and itchiness occurred significantly on the 7th day after use (use was stopped after 7th day), and in Comparative Example 2 rash was observed on the 7th day after use, and there was a slight itchiness. Occurred and rashes increased on the 14th day (use stopped after the 14th day). From these results, in Comparative Examples 1 and 2, the occurrence of skin irritation and itching can hardly be suppressed, but in Example 5, the skin condition to some extent is achieved by the deodorizing and antibacterial action of active oxygen generated from the titanium oxide film. In Examples 1 to 4, it is possible to sufficiently prevent the occurrence of skin irritation and itching due to the antibacterial action of the precipitated silver, and skin irritation and itching may occur even after one month of use. It was confirmed that the skin condition could be greatly improved.

  In addition, regarding the occurrence of phantom limb pain, as understood from the results in Table 2, the phantom limb pain does not occur even when used for 30 days on the prosthetic leg and the prosthetic hand to which Examples 1 to 4 are worn. The occurrence of limb pain can be greatly improved. In Example 5, phantom limb pain sometimes occurs on the 22nd day, and the same level of phantom limb pain occurs on the 30th day. Although it was confirmed that the occurrence was improved to some extent, in Comparative Examples 1 and 2, there was hardly any improvement in the occurrence of phantom limb pain.

  As can be seen by comparing Table 1 and Table 2, there is a correlation between the occurrence of phantom limb pain and the occurrence of skin irritation and itching, and the occurrence of skin irritation and itching is an illusion. It is thought to be one of the causes of limb pain. By suppressing skin irritation and itching, pain and itch caused by phantom limbs can also be suppressed.

  Since such an inflammation / odor control member has an antibacterial action, it can be used to suppress the propagation of germs and keep it clean, and by keeping it in close contact with the skin, it can cause skin irritation and itching. Generation | occurrence | production can be suppressed and generation | occurrence | production of an odor can also be suppressed. This inflammation / odor control member can be used on prosthetic hands, prosthetic limbs and prosthetic hands to reduce the occurrence of rashes and itching on the wearer's skin, as well as to suppress the generation of odors. Can be eliminated. As described above, the inflammation / odor control member is formed in various shapes such as a plate shape and a fiber shape so as to suppress skin inflammation (rash, itchiness) and / or to suppress the generation of odor. It can be widely applied to articles.

It is a simplification figure showing simply an example of a surface treatment device for carrying out a manufacturing method of an inflammation / smell control member according to the present invention. It is the elements on larger scale which show a part of base material main body surface-treated with the surface treatment apparatus of FIG. It is sectional drawing which shows an example of the inflammation / odor suppression member according to this invention. It is a perspective view which decomposes | disassembles and shows the inflammation / odor suppression member of FIG. It is sectional drawing which shows simply the artificial leg as an example of the artificial body according to this invention.

Explanation of symbols

2 Electrolyzer 4, 6 Electrode 12, 14 Base material body 16 DC power supply 18 AC power supply 22 Anodized film 24 Barrier layer 26 Multi-hard layer 30 Deposited metal 32 Non-woven fabric 52 Prosthetic leg 54 Mounting socket 56 Foot 64 Inflammation / odor control member

Claims (6)

  An anodized film is provided on at least a part of the surface of the base material main body formed from aluminum or an alloy thereof, and at least a part of the anodized film is one or more metals of silver, copper, gold and platinum Inflammation / odor control member, wherein at least a part of the surface of the base material body is covered with a nonwoven fabric.   An inflammation / odor control member, wherein a titanium oxide film is provided on at least a part of a surface of a base material body, and at least a part of the surface of the base material body is covered with a nonwoven fabric.   3. An inflammation / odor control member according to claim 1 and a mounting socket for mounting on a part of a human body, wherein the inflammation / odor control member is mounted on the inner surface of the mounting socket, and a nonwoven fabric is formed on the skin surface. The prosthetic body is characterized by suppressing the generation of inflammation on the skin surface by the antibacterial action of the deposited metal or titanium oxide film of the inflammation / odor control member, and suppressing the generation of odor in the mounting socket.   An inflammation / odor control member according to claim 1 and a Gibbs body attached to a part of a human body, wherein the inflammation / odor control member is disposed on the inner surface side of the Gibbs body on the skin surface. A gibbs that is held through a non-woven fabric, suppresses the occurrence of inflammation on the skin surface by the antibacterial action of the deposited metal or titanium oxide film of the inflammation / odor control member, and suppresses the generation of odor in the main body of the cast.   A base material body made of aluminum or an alloy thereof is placed in a sulfuric acid bath, an oxalic acid bath, or a mixed bath thereof, either silver nitrate, silver sulfate, copper nitrate and copper sulfate, or silver nitrate or silver sulfate and copper nitrate or sulfuric acid. In an electrolytic solution to which a mixture with copper is added, either an AC / DC superimposed current, a PR current that flows a negative wave, or a pulse or an alternating current that flows a negative wave is applied to perform electrolytic treatment, At the same time as forming the anodic oxide coating on the surface, the added silver nitrate, silver sulfate, copper nitrate or copper sulfate metal is deposited on the anodic oxide coating, and then at least part of the surface of the base material main body thus surface-treated. A method for producing an inflammation / odor control member, characterized in that a nonwoven fabric is provided on the surface.   A base material body formed of aluminum or an alloy thereof is immersed in a sulfuric acid bath, an oxalic acid bath or a mixed bath thereof to form an anodized film on the surface, and then silver nitrate, silver sulfate, copper nitrate and sulfuric acid are formed. Any of copper, or an AC / DC superimposed current, a PR current for passing a negative wave, a pulse for flowing a negative wave, or an alternating current in an electrolyte to which a mixture of silver nitrate or silver sulfate and copper nitrate or copper sulfate is added In this way, the added silver nitrate, silver sulfate, copper nitrate or copper sulfate metal is deposited on the anodized film, and then at least a part of the surface of the base material body thus surface-treated. A method for producing an inflammation / odor control member, characterized in that a nonwoven fabric is provided on the surface.

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