JP6986400B2 - How to attach RF tags to medical devices - Google Patents

Description

The present invention relates to an RF tag installation in a medical Ryoyo tool.

In recent years, the use of management systems for easily and reliably managing various tools using RF (Radio Frequency) tags and barcodes has been widespread. In particular, in the medical field where misplacement or loss of tools (particularly, misplacement of tools used for surgery in the body of the operated person) can cause serious problems, tools used for medical treatment (hereinafter referred to as medical tools) Thorough management of medical equipment is required to prevent misplacement or loss. Therefore, the medical field is considered to be one of the promising fields for introducing the above-mentioned management system.

For example, when performing an operation, check the number and types of medical devices before and after the operation, and confirm that the medical devices are not misplaced. At this time, the number of medical devices may be misidentified due to a confirmation error or the like (so-called human error), and misplacement or the like may be overlooked. By introducing a management system using RF tags in such a field, it is possible to realize double check by the system and human beings, and as a result, it is possible to suppress the occurrence of confirmation mistakes and the like, and the misplacement of medical equipment is high. It will be possible to suppress with accuracy. In addition, by introducing a management system using RF tags, it will be possible to redistribute or reduce the resources (personnel and time) that have been occupied in order to suppress the occurrence of confirmation errors and the like. In this way, the use of a management system using RF tags is expected to have the effects of improving the quality and safety of medical care (particularly surgery), reducing the burden on medical sites, and improving efficiency.

By the way, in order to manage a medical device using an RF tag, it is necessary to attach the RF tag to the medical device by some means. As a method for attaching the RF tag to the existing medical device, a method using an adhesive tape or a double-sided adhesive tape can be considered. Further, a method using a binding band (cable tie), a wire or a silicone rubber tube is known (see, for example, Patent Document 1). According to these methods, it is possible to attach the RF tag to the medical device very easily.

Further, although it is not related to a medical device, a method of attaching an RF tag to a tool using a liquid rubber or a heat-shrinkable tube is known in addition to the method using the above tape or a binding band (see, for example, Patent Document 2). .). If this method is applied to a medical device, the RF tag can be securely attached to the medical device by the strong and durable fixing member.

Japanese Unexamined Patent Publication No. 2013-0333370 Japanese Unexamined Patent Publication No. 2006-309690

However, in the method using the adhesive tape or the double-sided adhesive tape, since the adhesive is inferior in water resistance, oil resistance and heat resistance, the medical device to which the RF tag is attached (hereinafter referred to as "RF-tagged medical device") is referred to as a medical device. Adhesive deterioration or outflow when used in harsh environments such as environments where blood, proteins, fat, etc. directly adhere or where repeated cleaning and sterilization (including disinfection and sterilization; the same shall apply hereinafter) are performed. There is a problem that the RF tag cannot be fixed to the medical device for a long period of time and while maintaining a hygienic proper condition.

In addition, in the method using a cable tie, wire or silicone tube, when the medical device with RF tag is used in the harsh environment as described above, loosening occurs due to expansion and contraction and deterioration of the material constituting the cable tie and the like. As the fixing force weakens, a gap is created between the binding band or the like and the medical device, and dirt easily adheres. For this reason, there is a problem that the RF tag cannot be fixed to the medical device for a long period of time and while maintaining a hygienic and appropriate state.

Further, the method using liquid rubber has a problem that the position of attaching the RF tag to the medical device is likely to be displaced because the liquid rubber is liquid when the RF tag is attached to the medical device. Further, the method using a heat-shrinkable tube has a problem that it is difficult to attach the RF tag to a part or position where the heat-shrinkable tube cannot be covered (for example, a ring-shaped part or a part thick enough to fit in the tube). ..

Therefore, the present invention has been made to solve the above-mentioned problems, and the RF tag is fixed at an accurate position of a wide variety of medical devices for a long period of time while maintaining a hygienic appropriate state. It is intended to provide medical devices with possible RF tags. The "hygienic condition" means the outflow of the material constituting the fixing member for fixing the RF tag, the existence of a part where dirt easily adheres (for example, the gap between the medical device and the fixing member), or It means that it is possible to make matters that pose a hygiene problem, such as generation, residual stains after cleaning and sterilization, within the permissible range from the viewpoint of medical use.

The RF-tagged medical device according to the embodiment for achieving the above object is a self-adhesive silicone rubber adhesive that covers at least a part of the medical device, the RF tag, and the RF tag and adheres the RF tag to the medical device. It is provided with a member.

In the RF-tagged medical device according to another embodiment, the self-adhesive silicone rubber adhesive member is further provided between the first adhesive member wound around the medical device from above the RF tag and between the medical device and the RF tag. A second adhesive member to be arranged may be provided.

In the RF-tagged medical device according to another embodiment, the second adhesive member may be wound around the medical device.

The RF-tagged medical device according to another embodiment may also include at least two RF tags having different transmission directions of radio waves.

Further, one embodiment of the method of attaching the RF tag to the medical device includes a fixing step of covering at least a part of the RF tag with a self-adhesive silicone rubber sheet in an uncured state to fix the medical device and the RF tag. , A curing step of curing a self-adhesive silicone rubber sheet to form a self-adhesive silicone rubber adhesive member.

In the method of attaching the RF tag to the medical device according to another embodiment, further, in the fixing step, an uncured self-adhesive silicone rubber sheet is placed between the medical device and the RF tag to form the medical device and the RF tag. It may include a sticking step of sticking and a winding step of winding an uncured self-adhesive silicone rubber sheet on a medical device from above the RF tag.

In the method of attaching the RF tag to the medical device according to another embodiment, in the attaching step, the medical device and the RF tag are attached by arranging the medical device by winding an uncured self-adhesive silicone rubber sheet. May be.

The method of attaching the RF tag to the medical device according to another embodiment may also be a method of attaching at least two RF tags having different radio wave transmission directions to the medical device.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a medical device with an RF tag that can be fixed at an accurate position of a wide variety of medical devices while maintaining an appropriate hygienic condition for a long period of time.

FIG. 1 shows a plan view (1a), a side view (1b), and an A1-A1 line sectional view (1c) of the RF-tagged medical device according to the first embodiment, respectively. FIG. 2 shows a method of attaching an RF tag to a medical device according to the first embodiment. FIG. 3 shows a plan view (3a) and an A2-A2 line sectional view (3b) of the RF-tagged medical device according to the second embodiment, respectively. FIG. 4 shows a method of attaching an RF tag to a medical device according to a second embodiment. FIG. 5 shows a plan view (5a) and an A3-A3 line sectional view (5b) of the RF-tagged medical device according to the third embodiment, respectively. FIG. 6 shows a method of attaching an RF tag to a medical device according to a third embodiment. FIG. 7 shows a plan view (7a), a side view (7b), and an A4-A4 line sectional view (7c) of the RF-tagged medical device according to the fourth embodiment, respectively. FIG. 8 is a plan view (8a), a side view (8b), a sectional view taken along line A5-A5 (8c) of the RF-tagged medical device according to the fifth embodiment, and FIG. 8 (8c) of another RF-tagged medical device. ) Corresponds to FIG. 8 (8d) and another RF-tagged medical device corresponding to FIG. 8 (8e).

Hereinafter, embodiments of the RF-tagged medical device of the present invention and the method of attaching the RF tag to the medical device will be described with reference to the drawings. It should be noted that the embodiments described below do not limit the invention according to the claims. Moreover, not all of the elements and combinations thereof described in each embodiment are essential for the solution of the present invention. In each embodiment, the same reference numerals may be used for components having the same basic configuration and features in other embodiments, and the description thereof may be omitted.

(First Embodiment)
1. 1. RF-tagged medical device FIG. 1 shows a plan view (1a), a side view (1b), and an A1-A1 line sectional view (1c) of the RF-tagged medical device according to the first embodiment, respectively.

As shown in FIG. 1, the RF-tagged medical device 1 according to the first embodiment includes a medical device 10, an RF tag 20, and a self-adhesive silicone rubber adhesive member 30.

As used herein, the term "medical device" refers to a tool used for medical treatment, that is, an instrument or a machine. The term "medical device" as used herein includes both the entire medical device and parts of the medical device. The main subject of the present invention is a medical device that is used for a living body and is repeatedly used after being washed and sterilized (not disposable).
The term "medical care" as used herein refers to so-called medical practices or actions closely related to them (eg, surgery; treatment; test preparation actions such as urine test and stool test; tests such as temperature measurement, blood test and blood pressure measurement; nail cutting, etc. It shall also include actions to keep the body clean, measurement of height and weight).

In this embodiment, tweezers are exemplified as the medical device 10, but the medical device 10 is not limited to tweezers. For example, the medical tool 12 in the fourth embodiment described later is scissors (scissors). Further, the medical device 10 is not particularly limited as long as it is an instrument or machine used in the medical field. The medical device 10 may be a relatively simple instrument having no power or the like, or may be a complicated machine such as one using electric power or having power (electric motor or the like). Specific examples of medical devices other than tweezers and scissors include scalpels (tip swords, circular blade swords), forceps, needle holders, hooks, retractors, pus basins, tongue indenters, baby bottles, magnifying mirrors, pharynx mirrors, etc. Examples include electric scalpels, ultrasonic scalpels, laser scalpels, thermometers, medical drills, bone saws, artificial respirators, anesthesia devices, endoscopes, surgical robot hands, and attachment devices for robot hands.

The RF tag 20 is for managing the medical device 1 with an RF tag. "RF tag" is an abbreviation for "Radio Frequency tag". The RF tag 20 may be referred to by other names such as an electronic tag, an IC tag, a wireless tag, and an RFID tag. The "RF tag" referred to in this embodiment is suitably used together with a corresponding reader (a dedicated receiver, a PC or a smartphone equipped with a reader function, etc.), and is non-contact with the reader. A device that can send or send data. Such non-contact transmission or transmission / reception is preferably performed by radio waves. The reader may also serve as a writer (writing). The RF tag 20 preferably integrates components such as a control circuit including an IC chip, a memory, and an antenna.

The RF tag 20 is a passive tag that can operate using radio waves from a reader as energy and does not have a built-in battery, an active tag that has a built-in battery and emits radio waves by its own power, and a higher-level system that has a built-in battery. It can include any of the semi-active tags that passively activate the communication. Further, the RF tag 20 may be a tag that can be driven by either an electromagnetic induction method or a radio wave method. The shape of the RF tag 20 may be any shape such as a box shape (that is, a rectangular parallelepiped), a sphere, an egg shape, a card shape, a coin shape, a stick shape, and a label shape.

The self-adhesive silicone rubber adhesive member 30 is a cured self-adhesive silicone rubber sheet 30a in an uncured state, which will be described later. The self-adhesive silicone rubber itself will be described in detail later. Here, the self-adhesive silicone rubber adhesive member 30 has a thin sheet shape when the RF tag 20 is attached to the medical device 10, but it is guaranteed that the sheet shape is maintained even after curing. No. The self-adhesive silicone rubber adhesive member 30 may increase in thickness by stacking a plurality of the self-adhesive silicone rubber adhesive member 30 at the time of mounting, or may have a non-uniform thickness depending on the unevenness of the surface of each of the RF tag 20 and the medical device 10.

The self-adhesive silicone rubber adhesive member 30 covers at least a part of the RF tag 20 (in the first embodiment, the entire surface excluding the bottom surface), and is also fixed to the medical device 10 by itself. From the viewpoint of the stability of attachment of the RF tag 20 and the protection of the RF tag from blood and other cleaning / sterilizing environments, the entire surface of the RF tag 20 except the bottom surface is covered with the self-adhesive silicone rubber adhesive member 30 (that is, the RF tag 20). 20 is preferably sealed), but only the surface (upper surface) opposite to the medical device 10 may be covered with the self-adhesive silicone rubber adhesive member 30. As shown in FIG. 1 (1c), the self-adhesive silicone rubber adhesive member 30 is wound around the medical device 10 slightly longer than one circumference. By winding the self-adhesive silicone rubber adhesive member 30 around the medical device 10 at least once, the RF tag 20 and the self-adhesive silicone rubber adhesive member 30 can be attached regardless of the type of the target material to which the RF tag 20 and the self-adhesive silicone rubber adhesive member 30 are placed. Sufficient stability is obtained.

When the material of the medical device 10 and the self-adhesive silicone rubber adhesive member 30 have a high affinity at the position where the self-adhesive silicone rubber adhesive member 30 is fixed, as in the case where the medical device 10 is made of silicone rubber, the self-adhesive silicone rubber adhesive member 30 is fixed. Even if the self-adhesive silicone rubber adhesive member 30 is not wound more than once, sufficient stability may be obtained for attaching the RF tag 20.

In addition, in FIG. 1 (1c), the vicinity of the end portion of the self-adhesive silicone rubber adhesive member 30 is shown so as to have a large step. This is to make it easy to understand that the 30s overlap each other. The self-adhesive silicone rubber adhesive member 30 is relatively thin. This is because the uncured self-adhesive silicone rubber sheet 30a, which is the basis of the self-adhesive silicone rubber adhesive member 30, is thin and highly plastic. Therefore, it is possible to prevent a large step from being formed near the end of the self-adhesive silicone rubber adhesive member 30. This also applies to other figures such as FIG. 2 (2d).

It is preferable that the self-adhesive silicone rubber adhesive member 30 allows at least a part of visible light to pass through, and the RF tag 20 can be visually recognized through the self-adhesive silicone rubber adhesive member 30. The self-adhesive silicone rubber adhesive member 30 is preferably transparent or translucent in order to "pass through a portion of visible light".

On the other hand, the self-adhesive silicone rubber adhesive member 30 may be colored. In that case, the color may be, for example, a color having good visibility in a place where the RF-tagged medical device 1 is used (for example, an operating room). When there are a plurality of RF-tagged medical devices 1, self-adhesive silicones having different colors depending on the type of the medical device 10, the location of the medical device 10, the order in which the medical device 10 is used, the type of surgical procedure, and the like. The rubber adhesive member 30 may be used. The coloring means is not particularly limited, but can be realized by including a dye or a pigment in the self-adhesive silicone rubber.

Here, the self-adhesive silicone rubber will be described. The "self-adhesive silicone rubber" in this embodiment is a kind of solvent-free silicone-based adhesive, and has high adhesive strength, thermal stability, weather resistance, good water resistance, and excellent flexibility. It can withstand repeated sterilization (eg, high pressure steam sterilization, EOG sterilization, electron beam sterilization, boiling sterilization) performed under harsh conditions. In addition, it is possible to mitigate the effects of temperature, humidity, chemical or physical action, etc. during sterilization on a product coated with self-adhesive silicone rubber (RF tag in this embodiment). Further, the self-adhesive silicone rubber has a property of being excellent in hygiene as well as a general silicone rubber.

The uncured (before curing) self-adhesive silicone rubber can maintain its self-supporting shape and can be deformed by pressing pressure (it is a solid state having plasticity). For this reason, the uncured self-adhesive silicone rubber sheet can be adhered regardless of the surface shape of the place where it is placed by deforming it according to the unevenness or curved surface of the place where it is placed, and it has high adhesive strength. Have. By applying a primer to the place where it is placed, the adhesive strength of the self-adhesive silicone rubber can be further enhanced.

The uncured self-adhesive silicone rubber sheet preferably has a Williams plasticity at 25 ° C. in the range of 50 to 500, more preferably in the range of 50 to 300, and in the range of 50 to 250. It is even more preferable to have. The Williams plasticity is measured by using a parallel plate plasticity meter (Williams plastometer) according to the measuring method specified in JIS K 6249 "Test method for uncured and cured silicone rubber".

The self-adhesive silicone rubber is an addition reaction type or condensation reaction type silicone rubber, and is preferably cured by a simple means such as leaving at room temperature (reaction with water in the air) or heating. That is, the self-adhesive silicone rubber does not require special skills for handling from placement to curing, and can be fixed by a simple method.

Hereinafter, the self-adhesive silicone rubber that can be suitably used in this embodiment will be described in detail.

(1) Condensation reaction type self-adhesive silicone rubber The condensation reaction type self-adhesive silicone rubber is mainly composed of the following components.

(1-1) Organopolysiloxane A diorganopolysiloxane which is a main component of a condensation reaction type self-adhesive silicone rubber and is represented by the following chemical formula (1) or chemical formula (2).

In the above chemical formulas (1) and (2), R is a monovalent hydrocarbon group. R includes an alkyl group (methyl group, ethyl group, propyl group, butyl group, 2-ethylbutyl group, octyl group, etc.), cycloalkyl group (cyclohexyl group, cyclopentyl group, etc.), alkenyl group (vinyl group, propenyl group, etc.). Butenyl group, heptenyl group, hexenyl group, allyl group, etc.), aryl group (phenyl group, trill group, xsilyl group, naphthyl group, diphenyl group, etc.), aralkyl group (benzyl group, phenylethyl group, etc.), and the above-mentioned carbonization. Select from those in which at least a part of the hydrogen atom bonded to the carbon atom of the hydrogen group is replaced with a halogen, a cyano group, etc. (chloromethyl group, trifluoropropyl group, 2-cyanoethyl group, 3-cyanopropyl group, etc.). The one or more hydrocarbon groups to be made may be mentioned. The carbon number of R is preferably 1 to 12, and more preferably 1 to 10.

In the above chemical formulas (1) and (2), A is an oxygen atom or a polymethylene group (including a methylene group) represented by _{− (CH 2} ) _{m − (m is 1 to 8).} A is preferably an oxygen atom or an ethylene group.

In the above chemical formulas (1) and (2), n is an arbitrary number in which the ^{kinematic viscosity of the component (1-1) at 25 ° C. is in the range of 100 to 1000000 cm 2 / s.} The kinematic viscosity is more preferably in the range of ^{500 to 500,000 cm 2 / s.}

In the above chemical formulas (1) and (2), B is a hydrolyzable group. Examples of B include an alkoxy group (methoxy group, ethoxy group, propoxy group, butoxy group, etc.), ketooxime group (dimethylketooxym group, methylethylketooxym group, etc.), acyloxy group (acetoxy group, etc.), alkenyloxy group (isopropenyloxy). Group, isobutenyloxy group, etc.) can be mentioned. In addition, x in the above chemical formulas (1) and (2) is 2 or 3.

The above component (1-1) can be produced by a known method (for example, a method by an equilibrium reaction using a cyclic siloxane or a linear oligomer and an acid catalyst or a base catalyst).

When a branched structure is introduced into the diorganopolysiloxane which is the component (1-1), as a conventional method, a silane containing at least one _{of SiO 3/2} unit and SiO _{4/2 unit during polymerization or silane or} A method of adding siloxane to the extent that the diorganopolysiloxane does not gel can be used. For the component (1-1), in order to reduce stains, it is preferable to remove the low molecular weight siloxane by washing or the like before use.

(1-2) Cross-linking agent As the cross-linking agent, a silane having two or more, preferably three or more hydrolyzable groups in one molecule, or a partially hydrolyzed condensate of the silane is used. Examples of hydrolyzable groups include an alkoxy group (methoxy group, ethoxy group, butoxy group, etc.), ketooxym group (dimethylketooxym group, methylethylketooxym group, etc.), acyloxy group (acetoxy group, etc.), alkenyloxy group (iso). Examples thereof include a propenyloxy group, an isobutenyloxy group, etc.), an amino group (N-butylamino group, N, N-diethylamino group, etc.), and an amide group (N-methylacetamide group, etc.). Among these, it is preferable to use an alkoxy group, a ketooxym group, an acyloxy group, or an alkenyloxy group. The blending amount of the cross-linking agent is preferably in the range of 1 to 50 parts by mass, more preferably in the range of 2 to 30 parts by mass, and 5 to 30 parts by mass with respect to 100 parts by mass of the component (1-1). It is even more preferable that it is within the range of 20 parts by mass.

(1-3) Curing catalyst A curing catalyst is not essential, but the use of a curing catalyst can accelerate the curing of self-adhesive silicone rubber. Examples of curing catalysts include alkyl tin ester compounds (dibutyl tin diacetate, dibutyl tin dilaurate, dibutyl tin dioctate, etc.), titanium acid esters or titanium chelate compounds (tetraisopropoxytitanium, tetran-butoxytitanium, tetrakis (2-). Ethylhexoxy) titanium, dipropoxybis (acetylacetona) titanium, titaniumisopropoxyoctylene glycol, etc.) and other suitable organic metal compounds (zinc naphthenate, zinc stearate, zinc-2-ethyloctate, iron-2) -Ethyl hexoate, cobalt-2-ethyl hexoate, manganese-2-ethyl hexoate, cobalt naphthenate, alkoxyaluminum compound, etc.), aminoalkyl group substituted alkoxysilane (3-aminopropyltriethoxysilane, N -Β (aminoethyl) γ-aminopropyltrimethoxysilane, etc.), amine compounds or salts thereof (hexylamine, dodecylamine phosphate, etc.), quaternary ammonium salts (benzyltriethylammonium acetate, etc.), lower fatty acids of alkali metals Lower fatty acid salts of alkali metals of salts (potassium acetate, sodium acetate, lithium oxalate, etc.), dialkyl hydroxylamines (dimethylhydroxylamine, diethylhydroxylamine, etc.), silanes with guanidyl groups or siloxanes (tetramethylguanidylpropyl). Trimethoxysilane, tetramethylguanidylpropylmethyldimethoxysilane, tetramethylguanidylpropyltris (trimethylsiloxy) silane, etc.) can be mentioned. These may be used alone or as a mixture of two or more. The blending amount of the curing catalyst is preferably in the range of 0 to 20 parts by mass, more preferably in the range of 0.001 to 10 parts by mass with respect to 100 parts by mass of the component (1-1). It is even more preferable that it is in the range of 0.01 to 5 parts by mass.

(1-4) Filling agent The filler is not essential, but can be suitably used for the purpose of reinforcement and the like. Examples of fillers include reinforcing agents (fumed silica, sedimentary silica, silica whose surface is hydrophobized with an organic silicon compound, quartz powder, talc, zeolite, bentonite, etc.), and fibrous fillers (fibrous fillers). Examples include asbestos, glass fibers, organic fibers, etc.) and basic fillers (calcium carbonate, zinc carbonate, zinc oxide, magnesium oxide, cellite, etc.). Among these, silica, calcium carbonate and zeolite are preferable, and fumed silica and calcium carbonate whose surface is hydrophobized are more preferable. The blending amount of the filler can be selected depending on the purpose and the type of filler, but is in the range of 1 to 90% by volume and within the range of 5 to 60% by volume with respect to the component (1-1). It is preferable to be in.

(1-5) Adhesive-imparting component The adhesive-imparting component is not essential, but is preferably used. Examples of the adhesive-imparting component include amino group-containing organoalkoxysilanes (γ-aminopropyltrimethoxysilane, γ- (2-aminoethyl) aminopropyltrimethoxysilane, etc.) and epoxy group-containing organoalkoxysilanes (γ-gri). Sidoxypropyltrimethoxysilane and the like), mercapto-containing organoalkoxysilane (γ-mercaptopropyltrimethoxysilane and the like), and reaction mixtures of amino group-containing organoalkoxysilane and epoxy group-containing organoalkoxysilane can be mentioned. The blending amount of the adhesiveness-imparting component is preferably in the range of 0.1 to 5 parts by mass with respect to 100 parts by mass of the component (1-1).

(2) Additive-curing type self-adhesive silicone rubber The addition-curing type self-adhesive silicone rubber is mainly composed of the following components.

(2-1) Organopolysiloxane Organopolysiloxane is the main agent of the addition-curable self-adhesive silicone rubber, and has an average of two or more alkenyl groups in one molecule. Examples of the alkenyl group include a vinyl group, an allyl group, a butenyl group, a pentenyl group, a hexenyl group and a heptenyl group. Among these, it is preferable to use a vinyl group. Examples of organic groups bonded to silicon atoms other than alkenyl groups in this component include alkyl groups (methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, etc.) and aryl groups (phenyl group). , Trill group, xsilyl group, etc.), alkyl halide group (3-chloropropyl group, 3,3,3-trifluoropropyl group, etc.). Among these, it is preferable to use a methyl group. Examples of the molecular structure of this component include linear, linear with partial branches, branched chain, reticulated, and dendritic. The viscosity of this component at 25 ° C. is preferably 100,000 mPa · s or more, and more preferably 1,000,000 mPa · s or more.

Examples of the organopolysiloxane of this component include polydimethylsiloxanes that block both ends of the molecular chain and dimethylvinylsiloxy groups that block both ends of the molecular chain, dimethylsiloxane / methylvinylsiloxane copolymers that block both ends of the molecular chain, and trimethylsiloxy groups that block both ends of the molecular chain. Sealed dimethylsiloxane / methylvinylsiloxane copolymer, (CH ₃ ) ₃ siloxane unit represented by SiO _{1/2 and (CH 3} ) ₂ (CH ₂ = CH) siloxane unit represented by _{SiO 1/2 and SiO 4 / Organopolysiloxane consisting of the siloxane unit indicated by 2} , at least a part of the methyl group of these organopolysiloxanes is alkyl group (ethyl group, propyl group, etc.), aryl group (phenyl group, trill group, etc.), halogenated. Organopolysiloxane substituted with a substituent selected from alkyl groups (3,3,3-trifluoropropyl group, etc.), at least a part of the vinyl group of these organopolysiloxanes is an alkenyl group (allyl group, propenyl group, etc.). Organopolysiloxanes substituted with, and mixtures of two or more of these organopolysiloxanes can be used.

(2-2) Hydrogenated Organopolysiloxane The hydrogenated organopolysiloxane acts as a curing agent for addition-curing self-adhesive silicone rubber, and has an average of two or more silicon atom-bonded hydrogens in one molecule. .. Examples of the organic group bonded to silicon in this component include an alkyl group (methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, etc.), an aryl group (phenyl group, trill group, xsilyl group, etc.). ), Alkyl halide group (3-chloropropyl group, 3,3,3-trifluoropropyl group, etc.) can be mentioned. Among the above, it is preferable to use a methyl group. Examples of the molecular structure of this component include linear, linear with partial branches, branched chain, reticulated, and dendritic. The viscosity of this component at 25 ° C. is not limited, but is preferably in the range of 1-10000 mPa · s, and more preferably in the range of 1-10000 mPa · s.

Examples of the hydrogenated organopolysiloxane of this component include polydimethylsiloxane having a dimethylhydrogensiloxy group-blocking at both ends of the molecular chain, trimethylsiloxy group-blocking polymethylhydrogensiloxane at both ends of the molecular chain, and trimethylsiloxy-blocking dimethylsiloxane at both ends of the molecular chain. -Methylhydrogensiloxane copolymer, cyclic polymethylhydrogensiloxane, (CH ₃ ) ₂ HSiO Organopolysiloxane consisting of a siloxane unit represented _{by 1/2} and a siloxane unit represented by SiO _{4/2, these organonoxane.} At least a part of the methyl group of polysiloxane is an alkyl group (ethyl group, propyl group, etc.), an aryl group (phenyl group, trill group, etc.), and an alkyl halide group (3,3,3-trifluoropropyl group, etc.). Substituted organopolysiloxanes and mixtures of two or more of these organopolysiloxanes can be used. Among these, since the mechanical properties (particularly elongation) of the obtained cured product are improved, an organopolysiloxane having a silicon atom-bonded hydrogen atom only at both ends of the molecular chain and a silicon atom bond having a silicon atom bond on the side chain of the molecular chain. It is preferable to use a mixture with organopolysiloxane.

The content of this component in the addition-curable self-adhesive silicone rubber is such that the molar ratio of the silicon atom-bonded hydrogen atom in this component to the alkenyl group in (2-1) component is in the range of 0.01 to 20. The amount is preferably in the range of 0.1 to 10, and more preferably in the range of 0.1 to 5. The reason for setting the above range is that when the content of this component is at least the lower limit of the above range, the self-adhesive silicone rubber tends to be sufficiently cured, while it is below the upper limit of the above range. This is because the mechanical properties of the cured self-adhesive silicone rubber tend to be higher. When a mixture of an organopolysiloxane having a silicon atom-bonded hydrogen atom only at both ends of the molecular chain and an organopolysiloxane having a silicon atom bond at the side chain of the molecular chain is used as this component, the former organopolysiloxane is used. The content of (2-1) is preferably such that the molar ratio of the silicon atom-bonded hydrogen atom in this component to the alkenyl group in the component is in the range of 0.01 to 10, preferably 0.1 to 1. The amount is more preferably in the range of 10, and even more preferably in the range of 0.1 to 5. The content of the latter organopolysiloxane is such that the molar ratio of the silicon atom-bonded hydrogen atom in this component to the alkenyl group in the component (2-1) is in the range of 0.5 to 20. Is more preferable, and the amount is more preferably in the range of 0.5 to 10, and even more preferably in the range of 0.5 to 5.

(2-3) Curing catalyst A curing catalyst is not essential, but a platinum-based catalyst for a hydrosilylation reaction can be mentioned as a preferable example. Examples of platinum-based catalysts for hydrosilylation reactions include platinum fine powder, platinum black, platinum chloride acid, alcohol-modified platinum chloride acid, platinum and diketone complex, platinum chloride acid and olefins complex, platinum chloride acid and alkenylsiloxane. And those in which these are supported on a carrier (alumina, silica, carbon black, etc.) can be mentioned. Among these, it is preferable to use a complex of chloroplatinic acid and alkenylsiloxane because of its high catalytic activity. Further, it is more preferable to use a complex of platinum chloride acid and divinyltetramethyldisiloxane. The blending amount of this component is preferably in the range of 1 to 1000 parts by mass as a platinum metal atom with respect to 1 million parts by mass of the component (2-1), and is preferably in the range of 1 to 100 parts by mass. Is more preferable.

(2-4) Filler The filler is preferably added in order to improve the mechanical strength of the addition-curable self-adhesive silicone rubber, and is usually a known compound used for blending silicone rubber. Can be used. The components include, for example, fumed silica, precipitated silica, calcined silica, pulverized quartz, and a powder obtained by surface-treating powders of these silicas with an organosilicon compound (organoalkoxysilane, organohalosilane, organosilazane, etc.). Can be mentioned. In particular, in order to sufficiently improve the mechanical strength of the cured self-adhesive silicone rubber, it is preferable to use silica powder having a ^{BET specific surface area of 50 m 2 / g or more as this component.}

Addition of this component is optional in the addition-curing type self-adhesive silicone rubber, but in order to improve the mechanical strength of the cured self-adhesive silicone rubber, the blending amount of this component is (2-1) 100% by mass of the component. It is preferably in the range of 1 to 1000 parts by mass, and more preferably in the range of 1 to 400 parts by mass. In addition, the addition-curable self-adhesive silicone rubber has other optional components such as fumed titanium oxide, diatomaceous earth, iron oxide, aluminum oxide, aluminosilicate, calcium carbonate, zinc oxide, aluminum hydroxide and other inorganic substances. It may contain a filler and an organic filler. The addition-curing type self-adhesive silicone rubber may contain a filler in which the surface of these fillers is treated with the above-mentioned organosilicon compound. The blending amount of the filler can be selected depending on the purpose and the type of the filler, but is in the range of 1 to 90% by volume and within the range of 5 to 60% by volume with respect to the component (2-1). It is preferable to have.

(2-5) Adhesive-imparting component Although this component is not essential, it can be suitably used to impart and improve the adhesiveness of the addition-curable self-adhesive silicone rubber in order to function as an adhesive. It is a thing. Examples of this component are silane coupling agents and their partial hydrolysates (methyltrimethoxysilane, vinyltrimethoxysilane, allyltrimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-glycidoxypropyltrimethoxy). Silane, 3-aminopropyltrimethoxysilane, N- (2-aminoethyl) -3-aminopropyltrimethoxysilane, bis (trimethoxysilyl) propane, bis (trimethoxysilyl) hexane, etc.), "epoxide group, acid Organic compounds having "anhydrous group, α-cyanoacrylic group", siloxane compounds having "epoxide group, acid anhydride group, α-cyanoacrylic group", "epoxide group, acid anhydride group, α-cyanoacrylic group" and alkoxysilyl Organic compounds or siloxane compounds that also have a group, titanium compounds (tetraethyl titanate, tetrapropyl titanate, tetrabutyl titanate, tetra (2-ethylhexyl) titanate, titanium ethylacetonate, titanium acetylacetonate, etc.), aluminum compounds (ethylacetate, etc.) Acetate aluminum diisopropylate, aluminum tris (ethylacetacetate), alkylacetate aluminum diisopropyrate, aluminumtris (acetylacetonate), aluminum monoacetylacetonate bis (ethylacetacetate), etc.), zirconium compounds (zylonylacetylacetate) Nate, zirconium butoxyacetylacetonate, zirconium bisacetylacetonate, zirconium ethylacetacetate, etc.) can be mentioned. As the above-mentioned siloxane compound, a lower aliphatic unsaturated group such as an alkenyl group, an acryloyl group, or a methacryloyl group, or a compound having both of these and a hydrosilyl group can be expected to effectively contribute to the improvement of adhesiveness. The content of the adhesiveness-imparting component is not particularly limited, but is preferably in the range of 0.01 to 10 parts by mass with respect to 100 parts by mass of the component (2-1).

Further, in order to adjust the curability of the addition-curable self-adhesive silicone rubber, acetylene compounds (3-methyl-1-butin-3-ol, 3,5-dimethyl-1-hexin-3-3) are used. All, 3-phenyl-1-butin-3-ol, etc.), enein compounds (3-methyl-3-penten-1-in, 3,5-dimethyl-3-hexene-1-in, etc.), in one molecule Organosiloxane compound having 5% by mass or more of vinyl group (1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane, 1,3,5,7-tetramethyl-1) , 3,5,7-Tetrahexenylcyclotetrasiloxane, both-terminal silanol group-blocked methylvinylsiloxane, both-terminal silanol-based methylvinylsiloxane / dimethylsiloxane copolymer, etc.), and other curing inhibitors (benzo It is preferable to contain triazoles such as triazole, phosphins, mercaptans, hydrazines and the like). These contents are not limited, but are preferably in the range of 0.001 to 5 parts by mass with respect to 100 parts by mass of the component (2-1).

The method for preparing the addition-curing type self-adhesive silicone rubber is not limited, and can be prepared by mixing any other component as needed, but the component (2-1) and the component (2-3) are prepared in advance. It is preferable to add the remaining components to the base compound prepared by heating and mixing the components. When any other component is added, it may be added when preparing the base compound, and when the other optional component is altered by heating and mixing, the component (2-2) or (2-) is added. 4) It may be added when the component is added. Further, when preparing the base compound, the above-mentioned organosilicon compound may be added to in situ treat the surface of the component (2-3).

The uncured self-adhesive silicone rubber sheet is obtained by preparing the above-mentioned condensation reaction type self-adhesive silicone rubber or addition reaction type self-adhesive silicone rubber and forming it into a sheet shape.

2. 2. Method of Attaching RF Tag to Medical Device Next, a method of attaching the RF tag to the medical device according to the first embodiment will be described.

FIG. 2 shows a method of attaching an RF tag to a medical device according to the first embodiment. In addition, each figure of FIG. 2 is a cross-sectional view corresponding to FIG. 1 (1c).

In the method of attaching the RF tag to the medical device according to this embodiment, at least a part of the RF tag 20 arranged on the medical device 10 (in the first embodiment, the entire surface excluding the bottom surface) is self-bonded in an uncured state. This is a method of fixing the RF tag 20 to the medical device 10 by covering with a silicone rubber sheet 30a and curing the sheet 30a to form a self-adhesive silicone rubber adhesive member 30. In the present specification, the "sheet shape" includes a shape such as a tape shape, a round string shape, a film shape (that is, a thin film shape in general). The thickness of the uncured self-adhesive silicone rubber sheet 30a (hereinafter, simply referred to as "sheet 30a") is preferably in the range of 0.2 to 10.0 mm, for example. A more preferred thickness is in the range of 0.7 to 2.0 mm.

Since the "method of attaching the RF tag to the medical device" can be interpreted as a method of manufacturing the medical device 1 with the RF tag by fixing the RF tag 20 to the medical device 10, the "method of manufacturing the medical device with the RF tag". It may be called. In the method of attaching the RF tag to the medical device (or the method of manufacturing the medical device with the RF tag) according to this embodiment, the RF tag 20 is placed on the medical device 10, and at least a part of the RF tag 20 is formed on the sheet 30a. It includes a fixing step of fixing the medical device 10 and the RF tag 20 by covering with the medical device 10 and a curing step of curing the sheet 30a to form a self-adhesive silicone rubber adhesive member 30.

In the present specification, the form of the "RF-tagged medical device 1" includes a form in which the RF tag 20 is directly contact-arranged on the medical device 10 (that is, in direct contact with the medical device 10). The RF tag 20 is arranged on the medical device 10 via some member (for example, a sheet 30a different from the sheet 30a wound around the medical device 10 from above the RF tag 20 as in the embodiment described later). It is interpreted to include both the form and the form.

Hereinafter, the details of the RF tag attachment method to the medical device according to this embodiment will be described with reference to FIGS. 2 (2a) to 2 (2d).

First, the medical device 10 is prepared (see FIG. 2 (2a)). Here, it is preferable to remove in advance dirt, water, oil and the like existing at the position (adhesion surface) where the sheet 30a on the surface of the medical device 10 is arranged. The removal can be carried out, for example, by a method of wiping with a wiping tool (cloth, absorbent cotton, etc.) soaked with a cleaning agent (alcohol, etc.).

Next, the RF tag 20 is placed at a desired position on the medical device 10 (see FIG. 2 (2b)). The position where the RF tag 20 is arranged is preferably a position that does not interfere with the handling of the medical device 10 and does not interfere with the reading of the RF tag 20. Positions that do not get in the way when handling the medical device 10 are positions that are difficult to touch when handling the medical device 10 and positions where the medical device 10 comes into contact with the object to be used (for example, with tweezers, the tip or scissors. If there is, it means a position other than the blade).

Next, at least a part of the RF tag 20 arranged on the medical device 10 (in this embodiment, the entire surface other than the bottom surface) is covered with the sheet 30a, and the RF tag 20 is fixed to the medical device 10 (fixing step). : See FIG. 2 (2c).). From the viewpoint of the stability of attachment of the RF tag 20, it is preferable to cover the surface other than the contact surface (bottom surface) between the RF tag 20 and the medical device 10 with the sheet 30a. The sheet 30a can be shaped into an appropriate shape by using scissors (a general tool different from the medical device 10) or the like. In the fixing step, it is preferable that the sheet 30a is wound around the medical device 10 more than once. When the RF tag 20 is covered with the sheet 30a, the shape is adjusted by pressing the sheet 30a from above so that there is as little space as possible between the medical device 10 and the RF tag 20 and the sheet 30a. Is preferable.

Next, the sheet 30a is cured to form a self-adhesive silicone rubber adhesive member 30, and the RF tag 20 is firmly attached to the medical device 10 (curing step: see FIG. 2 (2d)). Curing is performed by leaving it at room temperature of 15 to 35 ° C. (curing), but it can also be performed by means of heating to a temperature higher than room temperature. Further, since the condensation reaction type self-adhesive silicone rubber reacts with moisture in the air, it can be cured at a temperature even lower than normal temperature.

Through the above steps, the RF tag 20 is attached to the medical device 10 to complete the medical device 1 with the RF tag.

3. 3. Unique action and effect of the first embodiment

According to this embodiment, since the sheet 30a is made of self-adhesive silicone rubber, it can be treated like a tape when used, and after curing, it has thermal stability, weather resistance, good water resistance, and excellent flexibility. It becomes an adhesive having. Therefore, even when the RF-tagged medical device 1 is used in a harsh environment where blood or the like directly adheres to it or repeated cleaning and sterilization (including disinfection and sterilization; the same applies hereinafter) is performed. The RF tag 20 can be fixed to the medical device 10 for a long period of time and while maintaining a hygienic appropriate state. Further, since the sheet 30a can be freely deformed by bending or the like during use, it can be used independently of the shapes of the RF tag 20 and the medical device 10.

Further, since the sheet 30a is a solid substance having plasticity, the RF tag 20 is less likely to be displaced or adhered to an unexpected position as compared with the case where a liquid adhesive is used. It also has excellent fixed operability.

By the way, in the medical field, the reason why a management system using RF tags should be introduced is not limited to the above reason (first reason) to prevent misplacement or loss of medical devices, and is as follows. It may be due to the above reason (second reason). For example, medical devices used for surgery are pre-stored in a container configured for each surgical procedure. At this time, if there is an error in the type or quantity of the medical equipment to be stored in the container, the medical equipment may be misplaced or the operation progress may be adversely affected. As described above, in the medical field, it is required to properly store medical equipment in an appropriate place. By using a management system that uses RF tags for the storage of medical devices, a great effect can be obtained, such as both stricter management and simplification of management. Since medical devices are used in harsh environments, the RF tag can be placed in the correct location of a wide variety of medical devices for a long period of time, even if the second reason is to manage the medical device. Being able to fix while maintaining a hygienic appropriate state is a prerequisite for operating a management system using RF tags. Therefore, the above effect obtained by using the sheet 30a is effective even in the case of the second reason.

Further, the reason why the management system using the RF tag should be introduced may be the following reason (third reason). Even if the medical device can be used repeatedly, it may require maintenance or repair due to deterioration or wear, or it may become unusable. If the number of times the medical device is used and the period of use are not properly managed, it will not be possible to prevent the medical device from being damaged while the medical device is being used, resulting in accidents such as detachment or loss of the damaged part. Can occur. It is necessary to manage the number of times of use and the period of use for tools other than medical tools (tools, etc.), but many medical tools are used for the human body, and damage or the like can cause a serious situation. However, when trying to manage the number of times and the period of use of a large number of medical devices (depending on the scale of medical facilities, etc., but it is not uncommon for them to reach tens of thousands) only by human power, confirmation mistakes are made at some stage. In the end, it may not be possible to prevent the occurrence of accidents caused by damage to medical equipment. On the other hand, by using a management system using RF tags (for example, reading with a reader each time a medical device is used), it is possible to easily and accurately manage the number of times and the period of use of the medical device. Therefore, it is possible to suppress the occurrence of confirmation errors and the like, and it is possible to sufficiently suppress damage and the like during use of medical devices. Even if the third reason is to manage the medical device, the RF tag can be fixed to the exact position of a wide variety of medical devices for a long period of time and in a hygienic condition. This is a prerequisite for operating a management system using RF tags. Therefore, the above effect obtained by using the sheet 30a is effective even in the case of the third reason.

Further, the reason why the management system using the RF tag should be introduced may be the following reason (fourth reason). Non-disposable medical devices are basically cleaned and sterilized each time they are used. If medical equipment is not properly cleaned and sterilized, serious situations such as the spread of infectious diseases may occur. However, if we try to manually manage the record of whether or not a large number of medical devices have been properly cleaned and sterilized, a confirmation error will occur at some stage, and in the end, medical treatment will not be properly cleaned and sterilized. The equipment may be reused as it is, causing or spreading infectious diseases. On the other hand, by using a management system that uses RF tags (for example, each time a medical device is cleaned / sterilized, it is read by a reader and the history of cleaning / sterilization is recorded), cleaning / sterilization can be performed easily and accurately. It is possible to manage whether or not it has been performed, it is possible to suppress the occurrence of confirmation errors and the like, and it is possible to prevent or sufficiently suppress the occurrence or spread of infectious diseases and the like. Even if the fourth reason is to manage the medical device, the RF tag can be fixed to the exact position of a wide variety of medical devices for a long period of time and in a hygienic condition. This is a prerequisite for operating a management system using RF tags. Therefore, the above effect obtained by using the sheet 30a is effective even in the case of the fourth reason.

Further, the sheet 30a preferably allows at least a part of visible light to pass through when cured, so that the RF tag 20 can be visually recognized through the self-adhesive silicone rubber adhesive member 30. Therefore, the position of the RF tag 20 and the control number written on the RF tag 20 can be easily visually confirmed.

Further, the sheet 30a may be one capable of forming a self-adhesive silicone rubber adhesive member 30 colored after curing. In this case, the color of the self-adhesive silicone rubber adhesive member 30 can improve the visibility and distinctiveness of the RF-tagged medical device 1 itself.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In the second embodiment, the configurations or steps common to the first embodiment will be omitted as appropriate, and the points different from the first embodiment will be mainly described.

1. 1. RF-tagged medical device FIG. 3 shows a plan view (3a) and an A2-A2 line sectional view (3b) of the RF-tagged medical device according to the second embodiment, respectively.

The RF-tagged medical device 2 according to the second embodiment basically has the same configuration as the RF-tagged medical device 1 according to the first embodiment, but the RF tag 20 has a self-adhesive silicone rubber adhesive member 30. It differs from the RF-tagged medical device 1 according to the first embodiment in that it is interposed and fixed to the medical device 10.

In the RF tag-attached medical device 2, the self-adhesive silicone rubber adhesive member 30 that adheres the RF tag 20 and the medical device 10 to the first adhesive member 31 that is wound around the medical device 10 from above the RF tag 20. , A second adhesive member 40 disposed between the medical device 10 and the RF tag 20.

2. 2. How to attach RF tags to medical devices

FIG. 4 shows a method of attaching an RF tag to a medical device according to a second embodiment.

The method of attaching the RF tag to the medical device according to the second embodiment is basically the same as the method of attaching the RF tag to the medical device according to the first embodiment, but the surface of the medical device 10 and the RF tag are the same. A medical device according to the first embodiment in that an uncured self-adhesive silicone rubber sheet 40a (hereinafter, simply referred to as "sheet 40a") which becomes a second adhesive member 40 after curing is arranged between the 20 and the 20. It is different from the method of attaching the RF tag to.

In the method of attaching an RF tag to a medical device (or a method of manufacturing an RF-tagged medical device) according to this embodiment, at least a part of the RF tag 20 is covered with a sheet 30a, and the medical device 10 and the RF tag 20 are combined. Includes a fixing step of fixing the sheet 30a and a curing step of curing the sheet 30a to form a self-adhesive silicone rubber adhesive member 30. Further, the fixing step includes a sticking step of arranging the sheet 40a between the medical device 10 and the RF tag 20 and attaching the medical device 10 and the RF tag 20 to the medical device 10 from above the RF tag 20. It includes a winding step of winding a sheet 31a different from the sheet 40a used in the pasting step. After curing, the sheet 31a becomes the first adhesive member 31 (a form of the self-adhesive silicone rubber adhesive member 30). The sheet 40a becomes a second adhesive member 40 (another form of the self-adhesive silicone rubber adhesive member 30) after curing. Hereinafter, the method of attaching the RF tag to the medical device according to the second embodiment will be described in detail.

First, the medical device 10 is prepared (see FIG. 4 (4a)). Since this step is the same as that of the first embodiment, the description thereof will be omitted.

Next, the sheet 40a is placed on the surface of the medical device 10 (see FIG. 4 (4b)).

Next, the RF tag 20 is placed and attached on the sheet 40a (pasting step: see FIG. 4 (4c)). The sticking step constitutes a part of the fixing step of fixing the RF tag 20 to the medical device 10.

Next, at least a part of the RF tag 20 arranged on the medical device 10 (in the second embodiment, the entire surface excluding the bottom surface) is covered with the sheet 31a (winding step: see FIG. 4 (4d)). Since the winding step is the same as the fixing step in the first embodiment, the description thereof will be omitted.

Next, the sheets 31a and 40a are cured, and the RF tag 20 is fixedly attached to the medical device 10 (curing step: see FIG. 4 (4e)). Since the curing step and the curing method are the same as those in the first embodiment, the description thereof will be omitted.

By the above steps, the RF tag 20 can be attached to the medical device 10 to complete the medical device 2 with the RF tag.

3. 3. Peculiar action effect of the second embodiment

According to this embodiment, in addition to the action and effect of the first embodiment described above, since the RF tag 20 can be more reliably fixed to the medical device 10, the displacement of the RF tag 20 can be suppressed. Moreover, the action effect that the fixing for a longer period is possible can be obtained. In particular, even when the surface of the medical device 10 has many irregularities, the RF tag 20 can be stably fixed to the medical device 10.

(Third Embodiment)
Next, a third embodiment of the present invention will be described. In the third embodiment, the configurations or steps common to the first embodiment and the second embodiment will be omitted as appropriate, and the differences from the first embodiment and the second embodiment will be mainly described.

1. 1. RF-tagged medical device FIG. 5 shows a plan view (5a) and an A3-A3 line sectional view (5b) of the RF-tagged medical device according to the third embodiment, respectively.

The RF-tagged medical device 3 according to the third embodiment basically has the same configuration as the RF-tagged medical device 2 according to the second embodiment, but the RF tag 20 is wound around the medical device 10. It differs from the RF-tagged medical device 2 according to the second embodiment in that it is fixed to the medical device 10 via a self-adhesive silicone rubber adhesive member 30.

In the RF tag-attached medical device 3, the self-adhesive silicone rubber adhesive member 30 that adheres the RF tag 20 and the medical device 10 to the first adhesive member 32 that is wound around the medical device 10 from above the RF tag 20. , A second adhesive member 41 arranged between the medical device 10 and the RF tag 20. The second adhesive member 41 is wound around the medical device 10. In this example, the second adhesive member 41 is a separate member from the first adhesive member 32, but may be one adhesive member connected to the first adhesive member 32. In that case, the RF tag 20 may be fixed to the medical device 10 by sandwiching the RF tag 20 in the middle of winding the one adhesive member.

2. 2. How to attach RF tags to medical devices

FIG. 6 shows a method of attaching an RF tag to a medical device according to a third embodiment.

The method of attaching the RF tag to the medical device according to the third embodiment is basically the same as the method of attaching the RF tag to the medical device according to the second embodiment, but the surface of the medical device 10 and the RF tag are the same. The second embodiment is to be arranged by winding an uncured self-adhesive silicone rubber sheet 41a (hereinafter, simply referred to as "sheet 41a") which becomes a second adhesive member 41 after curing with 20. It is different from the method of attaching the RF tag to the medical device according to the form.

In the method of attaching an RF tag to a medical device (or a method of manufacturing an RF-tagged medical device) according to this embodiment, at least a part of the RF tag 20 is covered with a sheet 30a, and the medical device 10 and the RF tag 20 are combined. Includes a fixing step of fixing the sheet 30a and a curing step of curing the sheet 30a to form a self-adhesive silicone rubber adhesive member 30. Further, in the fixing step, a sheet 41a is arranged between the medical device 10 and the RF tag 20, and the medical device 10 and the RF tag 20 are attached to each other, and the medical device 10 is attached to the medical device 10 from above the RF tag 20. It includes a winding step of winding a sheet 32a different from the sheet 41a used in the pasting step. Further, in the above-mentioned attachment step, the self-adhesive silicone rubber sheet 41a in an uncured state is wound around the medical device 10 to be arranged, and the medical device 10 and the RF tag 20 are attached. The sheet 32a becomes the first adhesive member 32 (a form of the self-adhesive silicone rubber adhesive member 30) after curing. The sheet 41a becomes a second adhesive member 41 (another form of the self-adhesive silicone rubber adhesive member 30) after curing. Hereinafter, the method of attaching the RF tag to the medical device according to the third embodiment will be described in detail. It is also possible to prepare one sheet in which the sheet 32a and the sheet 41a are connected to each other and fix the RF tag 20 to the medical device 10 by sandwiching the RF tag 20 in the middle of winding the sheet.

First, the medical device 10 is prepared (see FIG. 6 (6a)). Since this step is the same as that of the second embodiment, the description thereof will be omitted.

Next, the sheet 41a is placed on the surface of the medical device 10 (see FIG. 6 (6b)). At this time, the sheet 41a is wound around the medical device 10. In the winding step of the third embodiment, it is preferable that the sheet 41a is wound around the medical device 10 more than once. When winding the sheet 41a, it is preferable to adjust the shape by pressing the sheet 41a from above so that a gap is not formed between the medical device 10 and the sheet 41a as much as possible.

Next, the RF tag 20 is placed and attached on the sheet 41a (pasting step: see FIG. 6 (6c)). Since this step is the same as that of the second embodiment, the description thereof will be omitted.

Next, at least a part of the RF tag 20 arranged on the medical device 10 (in the third embodiment, the entire surface excluding the bottom surface) is covered with the sheet 32a (winding step: see FIG. 4 (4d)). Since this step is the same as that of the second embodiment, the description thereof will be omitted.

Next, the sheets 32a and 41a are cured, and the RF tag 20 is fixedly attached to the medical device 10 (curing step: see FIG. 6 (6e)). Since this step is the same as that of the second embodiment, the description thereof will be omitted.

By the above steps, the RF tag 20 can be attached to the medical device 10 to complete the medical device 3 with the RF tag.

3. 3. Peculiar action effect of the third embodiment

According to this embodiment, in addition to the effects of the first embodiment and the second embodiment described above, the RF tag 20 can be more reliably fixed to the medical device 10, so that the RF tag 20 can be fixed more reliably. It is also possible to obtain the effect that the misalignment of the above can be suppressed more reliably and the fixing for a longer period of time becomes possible. In particular, even when the surface of the medical device 10 has many irregularities, the RF tag 20 can be more stably fixed to the medical device 10.

(Fourth Embodiment)
Next, a fourth embodiment of the present invention will be described. In the fourth embodiment, the configurations or steps common to the third embodiment will be omitted as appropriate, and the points different from the third embodiment will be mainly described.

1. 1. RF-tagged medical device FIG. 7 shows a plan view (7a), a side view (7b), and an A4-A4 line sectional view (7c) of the RF-tagged medical device according to the fourth embodiment, respectively.

The RF-tagged medical device 4 according to the fourth embodiment basically has the same configuration as the RF-tagged medical device 3 according to the third embodiment, but the medical device 12 is scissors (scissors). , Different from the RF-tagged medical device 3 according to the third embodiment.

In the RF tag-attached medical device 4, the self-adhesive silicone rubber adhesive member 30 that adheres the RF tag 20 and the medical device 12 to the first adhesive member 33 that is wound around the medical device 12 from above the RF tag 20. , A second adhesive member 42 arranged between the medical device 12 and the RF tag 20. The second adhesive member 42 is wound around the medical device 12. In the above example, the second adhesive member 42 is a separate member from the first adhesive member 33, but may be one adhesive member connected to the first adhesive member 33. In that case, the RF tag 20 may be fixed to the medical device 12 by sandwiching the RF tag 20 in the middle of winding the one adhesive member.

2. 2. How to attach RF tags to medical devices

The method for attaching the RF tag to the medical device according to the fourth embodiment uses an uncured silicone rubber sheet corresponding to the point that the medical device 12 is scissors and the shapes of the first adhesive member 33 and the second adhesive member 42. Since the points other than the points are substantially the same as the method for attaching the RF tag to the medical device according to the third embodiment, the description thereof will be omitted.

3. 3. Action effect of the fourth embodiment

According to this embodiment, the same effect as that of the third embodiment can be obtained.

(Fifth Embodiment)
Next, a fifth embodiment of the present invention will be described. In the fifth embodiment, the configurations or steps common to each of the above-described embodiments will be omitted as appropriate, and the points different from those of the above-mentioned embodiments will be mainly described.

1. 1. RF-tagged medical device FIG. 8 shows a plan view (8a), a side view (8b), an A5-A5 line sectional view (8c) of the RF-tagged medical device according to the fifth embodiment, and another RF-tagged medical device. A cross-sectional view (8d) corresponding to FIG. 8 (8c) and a cross-sectional view (8e) corresponding to FIG. 8 (8c) of yet another RF-tagged medical device are shown.

The RF-tagged medical device 5 according to the fifth embodiment basically has the same configuration as the RF-tagged medical device 1 according to the first embodiment, but is provided with a plurality of RF tags 20 and 22. 1 Different from the RF-tagged medical device 1 according to the embodiment.

The RF-tagged medical device 5 according to the fifth embodiment is provided with two RF tags 20 and 22 in the medical device 10 as shown in FIGS. 8 (8a) to 8 (8c). In the fifth embodiment, the number of RF tags 20 and 22 is two, but three or more may be used. The RF tag 20 and the RF tag 22 are arranged so as to be able to transmit and transmit radio waves in different directions. Specifically, the RF tags 20 and 22 are arranged on the front side and the back side in the thickness direction of the medical device 10. As described above, when the medical device 5 with an RF tag includes at least two RF tags 20 and 22 having different transmission directions of radio waves, reading by a reader becomes easier. In particular, when the medical device 10 is a metal medical device such as an iron-based alloy containing iron and SUS, the medical device 10 itself becomes a radio wave shield and is connected to the RF tag 20 (or RF tag 22) by a reader. It may be difficult to perform non-contact communication with.

However, by attaching a plurality of RF tags 20 and 22 to the medical device 10 so that radio waves can be transmitted in different directions, even if communication with one RF tag (for example, RF tag 20) is difficult, another Communication with the RF tag (eg, RF tag 22) may be easy. When three or more RF tags are attached to the medical device 10, at least two RF tags are in the same direction as long as at least two of them are attached to the medical device 10 so that radio waves can be transmitted in different directions. It may be attached to the medical device 10 so as to transmit radio waves. Of course, all RF tags can be attached to the medical device 10 so that radio waves can be transmitted in different directions.

Further, as shown in FIG. 8, the RF tags 20 and 22 may be attached to the opposite surfaces of the medical device 10 with the medical device 10 interposed therebetween, but may be attached to the same surface of the medical device 10. Even in that case, the RF tags 20 and 22 are attached to the medical device 10 so that the transmission directions of radio waves from them are different from each other.

In the medical device 5 with an RF tag, as in the medical device 6 with an RF tag shown in FIG. 8 (8d), the self-adhesive silicone rubber adhesive member 30 (second adhesive member 40) is attached to the medical device 10 and the RF tags 20 and 22. It may be interposed between at least one.

Further, the medical device 5 with an RF tag has a self-adhesive silicone rubber adhesive member 30 (second adhesive member 41) wound around the medical device 10 as in the medical device 7 with an RF tag shown in FIG. 8 (8e). It may be interposed between the medical device 10 and at least one of the RF tags 20 and 22.
In the example shown in FIG. 8 (8e), the second adhesive member 41 is a separate member from the first adhesive member 32, but may be one adhesive member connected to the first adhesive member 32. In that case, the RF tag 20 may be fixed to the medical device 10 by sandwiching the RF tag 20 in the middle of winding the one adhesive member.

2. 2. RF tag attachment method to medical device The RF tag attachment method to the medical device according to the fifth embodiment is the RF tag attachment method to the medical device according to the first embodiment, the second embodiment or the third embodiment described above. In common with. That is, in the method of attaching the RF tag to the medical device according to the fifth embodiment, the arrangement step of arranging the RF tags 20 and 22 on the medical device 10 and at least a part of the RF tags 20 and 22 are covered with the sheet 30a. Then, a fixing step of fixing the medical device 10 and the RF tags 20 and 22 and a curing step of curing the sheet 30a to form the self-adhesive silicone rubber adhesive member 30 are included. Further, in the method of attaching the RF tag to the medical device according to the fifth embodiment, in the fixing step, the sheet 40a is arranged between the medical device 10 and the RF tags 20 and 22, and the medical device 10 and the RF tag 20 are arranged. It may include a sticking step of sticking the 22 and a winding step of winding a sheet 31a different from the one used in the sticking step on the medical device 10 from above the RF tags 20 and 22. The sheet 31a may be the same sheet as the sheet 40a. In that case, the RF tags 20 and 22 may be fixed to the medical device 10 so as to be sandwiched between the same sheets. Further, in the method of attaching the RF tag to the medical device according to the fifth embodiment, in the above-mentioned attachment step, the sheet 41a is wound around the medical device 10 to be arranged, and the medical device 10 and the RF tag 20 are attached. After that, a winding step of winding a sheet 32a different from the one used in the sticking step may be performed on the medical device 10 from above the RF tags 20 and 22. Even in that case, the sheet 32a may be the same sheet as the sheet 41a, and the RF tags 20 and 22 may be fixed to the medical device 10 so as to be sandwiched between the same sheets.

3. 3. Specific action and effect of the fifth embodiment According to the fifth embodiment, in addition to the above-mentioned action and effect of the first, second and third embodiments, it is possible to easily recognize the RF tag from a plurality of directions. The peculiar action effect of becoming becomes can be obtained. Therefore, even if the radio wave from one RF tag (for example, the RF tag 20) cannot be received when the reader is held over the medical device 5 with the RF tag, the radio wave from another RF tag 22 is received. There is a possibility that it can be done. Therefore, when searching for the lost RF-tagged medical device 5, the probability of discovery increases. In addition, by making it easier to recognize the RF tag from a plurality of directions, it is possible to save the trouble of holding the reader over and over again, and to reduce the stress when the user of the medical device 5 with the RF tag tries to recognize the RF tag. It becomes possible.

(Other embodiments)
Although the above description has been made based on each embodiment of the present invention, the present invention is not limited to each of the above embodiments, and can be carried out in various embodiments without departing from the spirit of the present invention. For example, the following modifications are possible.

The number, shape, position, size, angle, etc. of the components described in each of the above embodiments and drawings are examples, and can be changed as long as the effects of the present invention are not impaired. Further, in the above-mentioned fifth embodiment, the two RF tags 20 and 22 are of the same type, but the present invention is not limited thereto. The plurality of RF tags may be of different types, each or only in part.

The present invention is available in any industry that manufactures or uses medical devices.

1,2,3,4,5,6,7 ... Medical equipment with RF tag, 10,12 ... Medical equipment, 20,22 ... RF tag, 30 ... Self-adhesive silicone rubber adhesive member , 30a, 31a, 32a, 40a, 41a ... Sheet (self-adhesive silicone rubber sheet in an uncured state), 31, 32 ... Self-adhesive silicone rubber adhesive member (first adhesive member), 40, 41 ... -Self-adhesive silicone rubber adhesive member (second adhesive member).

Claims (4)

A fixing step of covering at least a part of the RF tag with an uncured self-adhesive silicone rubber sheet to fix the medical device and the RF tag.
A curing step of curing the uncured self-adhesive silicone rubber sheet to form a self-adhesive silicone rubber adhesive member,
Including
The method for attaching an RF tag to a medical device, wherein the uncured self-adhesive silicone rubber sheet is a solid sheet that can maintain a self-supporting shape and has plasticity. The fixing step is
A pasting step of arranging the uncured self-adhesive silicone rubber sheet between the medical device and the RF tag and attaching the medical device and the RF tag.
A winding step of winding the uncured self-adhesive silicone rubber sheet around the medical device from above the RF tag, and
The method for attaching an RF tag to a medical device according to claim 1. In the attachment step, RF to the medical device according to claim 2 , which is arranged by winding the uncured self-adhesive silicone rubber sheet around the medical device and the medical device and the RF tag are attached. How to attach the tag. The method for attaching an RF tag to a medical device according to any one of claims 1 to 3 , wherein at least two RF tags having different transmission directions of radio waves are attached to the medical device.

Images