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JP2020162779A - Mounting instrument - Google Patents

Mounting instrument
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Publication number
JP2020162779A
JP2020162779AJP2019065045AJP2019065045AJP2020162779AJP 2020162779 AJP2020162779 AJP 2020162779AJP 2019065045 AJP2019065045 AJP 2019065045AJP 2019065045 AJP2019065045 AJP 2019065045AJP 2020162779 AJP2020162779 AJP 2020162779A
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Prior art keywords
needle
mounting
movable member
hole
needle portion
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JP2019065045A
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Japanese (ja)
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賢 池上
Masaru Ikegami
賢 池上
達 末原
Tatsu Suehara
達 末原
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Terumo Corp
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Terumo Corp
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Abstract

To provide a mounting instrument capable of reducing an infection risk due to the exposure of a puncture hole, and easily maintaining a mounting state on a living body surface during a water-removing treatment.SOLUTION: A mounting instrument comprises a mounting body having a mounting surface mounted on a living body surface, and a movable member having a needle part insertable into the living body surface, and held movably to the mounting body. The movable member is movable to the mounting body between an insertion position in which the needle part projects from the mounting surface, and an extraction position in which the needle part does not project from the mounting surface. The movable member is formed with at least one through hole penetrating in the longer direction of the needle part.SELECTED DRAWING: Figure 5

Description

Translated fromJapanese

本開示は装着器具に関する。 The present disclosure relates to a mounting device.

従来から、例えばうっ血性心不全により、顔面・四肢にうっ血が発生することが知られている。このようなうっ血に対して、利尿薬を利用して除水する治療が一般的に行われている。 Conventionally, it has been known that congestion occurs in the face and limbs due to, for example, congestive heart failure. Treatment to remove water using a diuretic is generally performed for such congestion.

特許文献1には、皮膚からの流体又は皮膚下からの流体を被検体から受容するための装置が開示されている。また、特許文献2には、複数のマイクロニードルのアレイを含む、身体から体液を取り出すための装置が開示されている。 Patent Document 1 discloses a device for receiving a fluid from the skin or a fluid from under the skin from a subject. Further,Patent Document 2 discloses a device for extracting body fluid from the body, which includes an array of a plurality of microneedles.

特表2014−501555号公報Japanese Patent Publication No. 2014-501555特表2017−509449号公報Special Table 2017-509449

心不全に伴ううっ血治療として、上述した利尿薬の利用のみの治療では除水しきれず、うっ血が残存する場合がある。うっ血の残存は諸臓器の傷害を進行させ、心不全をさらに悪化させる可能性がある。 As a treatment for congestion associated with heart failure, the above-mentioned treatment using only diuretics may not be able to completely remove water, and congestion may remain. Residual congestion can lead to damage to organs and further exacerbate heart failure.

これに対して、特許文献1及び2に記載されている装置を利用することが考えられる。具体的には、生体表面に装着された後に、針部を生体に穿刺及び抜去し、生体表面に形成された穿刺孔を通じて体液を取り出す装置を用いて、除水治療を行うことが考えられる。特許文献1及び2に記載されている装置によれば、穿刺孔が露出しないため、穿刺孔からの感染リスクを低減できる。しかしながら、除水治療の最中に、特許文献1及び2に開示されている装置に対して外力が作用すると、生体表面上で装置の装着位置が変動する、又は、装置が生体表面から脱落する、おそれがある。装置の装着位置が変動すると除水治療の除水効率が低下する可能性がある。また、装置が生体表面から脱落すると、穿刺孔を覆う適切な位置に装置を再装着することは難しい。そのため、装置の再装着のみならず、針部を再び穿刺及び抜去することで、新たな穿刺孔を生体表面に形成しなければならない場合がある。 On the other hand, it is conceivable to use the devices described inPatent Documents 1 and 2. Specifically, it is conceivable to perform water removal treatment using a device that punctures and removes the needle portion into the living body after being attached to the surface of the living body and takes out body fluid through a puncture hole formed on the surface of the living body. According to the devices described inPatent Documents 1 and 2, since the puncture hole is not exposed, the risk of infection from the puncture hole can be reduced. However, if an external force acts on the devices disclosed inPatent Documents 1 and 2 during the water removal treatment, the mounting position of the device fluctuates on the surface of the living body, or the device falls off from the surface of the living body. , There is a risk. If the mounting position of the device changes, the water removal efficiency of the water removal treatment may decrease. Also, if the device falls off the surface of the living body, it is difficult to reattach the device in an appropriate position to cover the puncture hole. Therefore, it may be necessary to form a new puncture hole on the surface of the living body by not only reattaching the device but also puncturing and removing the needle portion again.

本開示は、穿刺孔の露出による感染リスクを低減できると共に、除水治療の最中に生体表面での装着状態を維持し易い装着器具を提供することを目的とする。 An object of the present disclosure is to provide a wearing device that can reduce the risk of infection due to exposure of a puncture hole and that can easily maintain a wearing state on the surface of a living body during water removal treatment.

本開示の第1の態様としての装着器具は、生体表面に装着される装着面を備える装着本体と、前記生体表面に挿入可能な針部を備え、前記装着本体に対して移動可能に保持されている可動部材と、を備え、前記可動部材は、前記針部が前記装着面よりも突出する挿入位置と、前記針部が前記装着面よりも突出しない抜去位置と、との間を前記装着本体に対して移動可能であり、前記可動部材には、前記針部の長手方向に貫通する少なくとも1つの貫通孔が形成されている。 The mounting device as the first aspect of the present disclosure includes a mounting body having a mounting surface mounted on the surface of the living body and a needle portion that can be inserted into the surface of the living body, and is movably held with respect to the mounting body. The movable member includes an insertion position in which the needle portion protrudes from the mounting surface and an extraction position in which the needle portion does not protrude from the mounting surface. The movable member is movable with respect to the main body, and the movable member is formed with at least one through hole penetrating in the longitudinal direction of the needle portion.

本開示の1つの実施形態として、前記少なくとも1つの貫通孔は、前記針部を前記長手方向に貫通する貫通孔を含む。 In one embodiment of the present disclosure, the at least one through hole includes a through hole that penetrates the needle portion in the longitudinal direction.

本開示の1つの実施形態として、前記可動部材は、前記針部の基端を支持する針支持部を備え、前記少なくとも1つの貫通孔は、前記針部を前記長手方向に貫通せず、前記針支持部を前記長手方向に貫通する貫通孔を含む。 In one embodiment of the present disclosure, the movable member comprises a needle support portion that supports the proximal end of the needle portion, and the at least one through hole does not penetrate the needle portion in the longitudinal direction. Includes a through hole that penetrates the needle support portion in the longitudinal direction.

本開示の1つの実施形態として、前記装着本体は、前記可動部材を収容する内部空間を区画しており、前記装着本体には、外部と前記内部空間とを連通する吸引開口が形成されている。 As one embodiment of the present disclosure, the mounting body partitions an internal space for accommodating the movable member, and the mounting body is formed with a suction opening for communicating the outside and the internal space. ..

本開示の1つの実施形態として、前記可動部材は、前記針部を複数備え、前記複数の針部の全ての針先で構成される針先集合面は、湾曲面により構成されている。 As one embodiment of the present disclosure, the movable member includes a plurality of the needle portions, and a needle tip collecting surface composed of all the needle tips of the plurality of needle portions is composed of a curved surface.

本開示によれば、穿刺孔の露出による感染リスクを低減できると共に、除水治療の最中に生体表面での装着状態を維持し易い装着器具を提供することができる。 According to the present disclosure, it is possible to provide a wearing device that can reduce the risk of infection due to the exposure of the puncture hole and can easily maintain the wearing state on the surface of the living body during the water removal treatment.

本開示の一実施形態としての装着器具を用いて行う除水治療の概要を示す図である。It is a figure which shows the outline of the water removal treatment performed by using the wearing device as one Embodiment of this disclosure.図1に示す装着器具の斜視図である。It is a perspective view of the mounting instrument shown in FIG.生体表面に装着されている状態での、図1に示す装着器具の側面図である。It is a side view of the attachment device shown in FIG. 1 in a state of being attached to the surface of a living body.図1に示す装着器具について内部機構の概略を示す概略図であり、可動部材が抜去位置にある状態を示す図である。It is a schematic diagram which shows the outline of the internal mechanism about the mounting instrument shown in FIG. 1, and is the figure which shows the state which the movable member is in a pull-out position.図1に示す装着器具について内部機構の概略を示す概略図であり、可動部材が挿入位置にある状態を示す図である。It is a schematic diagram which shows the outline of the internal mechanism about the mounting instrument shown in FIG. 1, and is the figure which shows the state which the movable member is in the insertion position.図5に示す状態での可動部材の詳細を示す詳細断面図である。It is a detailed cross-sectional view which shows the detail of the movable member in the state shown in FIG.図1に示す装着器具の第1の変形例を示す図である。It is a figure which shows the 1st modification of the wearing device shown in FIG.図1に示す装着器具の第2の変形例を示す図である。It is a figure which shows the 2nd modification of the wearing device shown in FIG.

以下、本開示に係る医療用の装着器具の実施形態について図面を参照して例示説明する。各図において共通する部材・部位には同一の符号を付している。 Hereinafter, embodiments of the medical wearing device according to the present disclosure will be illustrated with reference to the drawings. The same reference numerals are given to common members and parts in each figure.

図1は、本開示に係る装着器具の第1実施形態としての装着器具1を用いて行う除水治療の概要を示す図である。装着器具1は、例えばうっ血性心不全などの心不全により入院する患者Pの生体表面BSに装着されて使用される。図1では、患者Pの下股に装着された装着器具1を用いて行う除水治療の概要が示されている。詳細は後述するが、装着器具1によれば、針部11(図4等参照)を穿刺した状態のまま、皮下組織ST(図6参照)の間質に溜まった水分を体外へ除去することができる。図1に示す除水治療は、例えば、利尿薬、トルバプタン等による除水治療に加えて又は代えて行うことができる。また、図1に示す除水治療は、患者Pの浮腫の状態に応じて、例えば2、3日に一度などの、所定の周期で実施される。図1に示す1回の除水治療に要する時間は、患者Pの浮腫の状態によっても異なるが、例えば2〜8時間など、数時間に及ぶことがある。装着器具1は、図1に示す除水治療が行なわれている時だけ生体表面BSに装着される。つまり、患者Pは、入院中に除水治療を行う時にだけ、装着器具1を装着する。 FIG. 1 is a diagram showing an outline of water removal treatment performed by using the wearing device 1 as the first embodiment of the wearing device according to the present disclosure. The wearing device 1 is used by being attached to the biological surface BS of the patient P who is hospitalized due to heart failure such as congestive heart failure. FIG. 1 shows an outline of the water removal treatment performed by using the wearing device 1 mounted on the lower crotch of the patient P. Details will be described later, but according to the wearing device 1, the water accumulated in the interstitium of the subcutaneous tissue ST (see FIG. 6) is removed from the body while the needle portion 11 (see FIG. 4 etc.) is punctured. Can be done. The water removal treatment shown in FIG. 1 can be performed in addition to or in place of, for example, water removal treatment with a diuretic, tolvaptan, or the like. Further, the water removal treatment shown in FIG. 1 is performed in a predetermined cycle, for example, once every two or three days, depending on the state of edema of patient P. The time required for one water removal treatment shown in FIG. 1 varies depending on the state of edema of patient P, but may be several hours, for example, 2 to 8 hours. The attachment device 1 is attached to the biological surface BS only when the water removal treatment shown in FIG. 1 is being performed. That is, the patient P wears the wearing device 1 only when performing the water removal treatment during hospitalization.

図1に示す除水治療は、装着器具1を生体表面BSに装着した状態のままで、間質に溜まった水分を体外へと排出する。この除水治療は、例えば、体外に配置される吸引装置100を、吸引チューブ101等を介して装着器具1に接続することにより、行うことができる。この吸引装置100により吸引することで、針部11(図4等参照)を生体表面BSから生体に穿刺した状態のまま、皮下組織ST(図6参照)の間質に溜まった水分を体外へと排出することができる。この除水治療の詳細は後述する。 In the water removal treatment shown in FIG. 1, the water accumulated in the interstitium is discharged to the outside of the body while the wearing device 1 is attached to the biological surface BS. This water removal treatment can be performed, for example, by connecting asuction device 100 arranged outside the body to the wearing device 1 via asuction tube 101 or the like. By sucking with thissuction device 100, the water accumulated in the interstitium of the subcutaneous tissue ST (see FIG. 6) is removed from the body while the needle portion 11 (see FIG. 4 etc.) is punctured from the living body surface BS into the living body. Can be discharged. The details of this water removal treatment will be described later.

図2は、図1に示す装着器具1の斜視図である。図2では、説明の便宜上、装着器具1に接続される吸引チューブ101を併せて示している。図3は、生体表面BSに装着されている状態の装着器具1の側面図である。図4は、生体表面BSに装着されている状態の装着器具1について、内部機構の概略を示す概略図である。図4では、理解を容易にするため、実際とは異なる大きさで装着器具1の各部を表している。また、図4では、装着器具1の可動部材3が抜去位置にある状態を示している。図5は、図4に示す装着器具1の可動部材3を、抜去位置から挿入位置へと移動させた状態を示している。図6は、可動部材3の詳細を示す詳細断面図である。図6では、可動部材3の針部11が生体表面BSから生体に穿刺された状態、すなわち、図5に示す可動部材3と同じ状態、を示している。 FIG. 2 is a perspective view of the mounting device 1 shown in FIG. In FIG. 2, for convenience of explanation, thesuction tube 101 connected to the mounting device 1 is also shown. FIG. 3 is a side view of the mounting device 1 mounted on the biological surface BS. FIG. 4 is a schematic view showing an outline of the internal mechanism of the wearing device 1 mounted on the biological surface BS. In FIG. 4, each part of the mounting device 1 is shown in a size different from the actual size for easy understanding. Further, FIG. 4 shows a state in which themovable member 3 of the mounting device 1 is in the removed position. FIG. 5 shows a state in which themovable member 3 of the mounting device 1 shown in FIG. 4 is moved from the removal position to the insertion position. FIG. 6 is a detailed cross-sectional view showing the details of themovable member 3. FIG. 6 shows a state in which theneedle portion 11 of themovable member 3 is punctured by the living body from the living body surface BS, that is, the same state as themovable member 3 shown in FIG.

図2〜図6に示すように、装着器具1は、装着本体2と、可動部材3と、を備える。装着本体2は、生体表面BSに装着される装着面2aを備える。可動部材3は、装着本体2に対して移動可能に保持されている。また、可動部材3は、生体表面BSに挿入可能な針部11を備えている。装着面2aとは、装着器具1が生体表面BSに装着されている状態で、生体表面BSに接触している面を意味し、必ずしも粘着等により一体化されていなくてもよい。 As shown in FIGS. 2 to 6, the mounting device 1 includes amounting body 2 and amovable member 3. Themounting body 2 includes amounting surface 2a that is mounted on the biological surface BS. Themovable member 3 is movably held with respect to the mountingbody 2. Further, themovable member 3 includes aneedle portion 11 that can be inserted into the biological surface BS. Themounting surface 2a means a surface in contact with the biological surface BS in a state where the mounting device 1 is mounted on the biological surface BS, and is not necessarily integrated by adhesion or the like.

本実施形態の可動部材3は複数の針部11を備えるが、針部11の数は特に限定されず、可動部材3は、少なくとも1つ以上の針部11を備えればよい。但し、装着器具1は、針部11が生体に穿刺されることで形成される穿刺孔を通じて、皮下組織ST(図6参照)の間質に溜まった水分を体外に除去するため、複数の針部11を設けることが好ましい。これにより、穿刺孔を増やすことができ、除水効率を高めることができる。 Themovable member 3 of the present embodiment includes a plurality ofneedle portions 11, but the number ofneedle portions 11 is not particularly limited, and themovable member 3 may include at least one ormore needle portions 11. However, the wearing device 1 has a plurality of needles in order to remove the water accumulated in the interstitium of the subcutaneous tissue ST (see FIG. 6) to the outside of the body through the puncture hole formed by theneedle portion 11 being punctured by the living body. It is preferable to provide theportion 11. As a result, the number of puncture holes can be increased and the water removal efficiency can be improved.

可動部材3は、装着本体2に対して、挿入位置と抜去位置との間で移動可能である。挿入位置とは、針部11が装着本体2の装着面2aよりも突出する位置である(図4参照)。抜去位置とは、針部11が装着本体2の装着面2aよりも突出しない位置である(図5参照)。 Themovable member 3 can move between the insertion position and the removal position with respect to the mountingbody 2. The insertion position is a position where theneedle portion 11 protrudes from the mountingsurface 2a of the mounting body 2 (see FIG. 4). The removal position is a position where theneedle portion 11 does not protrude from the mountingsurface 2a of the mounting body 2 (see FIG. 5).

図6に示すように、可動部材3には、針部11の長手方向Aに貫通する複数の貫通孔Hが形成されている。詳細は後述するが、本実施形態の可動部材3には、針部11の位置で針部11の長手方向Aに貫通する貫通孔h1と、針部11とは異なる位置で針部11の長手方向Aに貫通する貫通孔h2と、の両方が形成されている。 As shown in FIG. 6, themovable member 3 is formed with a plurality of through holes H penetrating in the longitudinal direction A of theneedle portion 11. Although the details will be described later, in themovable member 3 of the present embodiment, the through hole h1 penetrating in the longitudinal direction A of theneedle portion 11 at the position of theneedle portion 11 and the length of theneedle portion 11 at a position different from theneedle portion 11 Both a through hole h2 penetrating in the direction A and a through hole h2 are formed.

このように、装着器具1の可動部材3には、針部11の長手方向Aに貫通する貫通孔Hが形成されているため、針部11を生体表面BSから生体に穿刺した状態のまま、貫通孔Hを通じて、皮下組織STの間質に溜まった水分を体外に除去することができる(図6の破線矢印参照)。また、除水治療を行っている間、針部11を生体に穿刺した状態のままにすることができる。そのため、除水治療の最中に装着器具1に外力が作用しても、装着器具1の生体表面BS上の装着位置は変動し難く、生体表面BSからの脱落も抑制できる。つまり、装着器具1によれば、生体に形成された穿刺孔の露出による感染リスクを低減できると共に、除水治療の最中の生体表面BSでの装着状態が維持し易くなる。 As described above, since themovable member 3 of the mounting device 1 is formed with a through hole H penetrating theneedle portion 11 in the longitudinal direction A, theneedle portion 11 remains punctured from the living body surface BS into the living body. Through the through hole H, the water accumulated in the interstitium of the subcutaneous tissue ST can be removed from the body (see the broken line arrow in FIG. 6). In addition, theneedle portion 11 can be left in a state of being punctured into the living body during the water removal treatment. Therefore, even if an external force acts on the mounting device 1 during the water removal treatment, the mounting position of the mounting device 1 on the biological surface BS is unlikely to change, and the detachment from the biological surface BS can be suppressed. That is, according to the wearing device 1, the risk of infection due to the exposure of the puncture hole formed in the living body can be reduced, and the wearing state on the living body surface BS during the water removal treatment can be easily maintained.

以下、本実施形態の装着器具1の更なる詳細について説明する。 Hereinafter, further details of the mounting device 1 of the present embodiment will be described.

[装着本体2]
本実施形態の装着本体2は、ハウジング21と、装着部材22と、を備える。本実施形態の装着本体2の装着面2aは、装着部材22により構成されている。
[Mounting body 2]
The mountingbody 2 of the present embodiment includes ahousing 21 and a mountingmember 22. The mountingsurface 2a of the mountingbody 2 of the present embodiment is composed of a mountingmember 22.

装着本体2のハウジング21は、可動部材3を収容する内部空間21aを区画している。また、装着本体2のハウジング21には、外部と内部空間21aとを連通する吸引開口41aが形成されている。 Thehousing 21 of the mountingbody 2 partitions aninternal space 21a for accommodating themovable member 3. Further, thehousing 21 of the mountingbody 2 is formed with asuction opening 41a that communicates the outside and theinternal space 21a.

また、装着本体2のハウジング21の内部空間21aのうち、生体表面BS側となる一端は開放端であり、この開放端の開口を通じて、可動部材3の針部11は、装着本体2の外側へと突出する。この突出する動作により、可動部材3は、抜去位置から挿入位置へと移動する。この詳細は後述する。 Further, in theinternal space 21a of thehousing 21 of the mountingbody 2, one end on the living body surface BS side is an open end, and theneedle portion 11 of themovable member 3 moves to the outside of the mountingbody 2 through the opening of the open end. Protrudes. By this protruding operation, themovable member 3 moves from the removal position to the insertion position. The details will be described later.

より具体的に、本実施形態のハウジング21は、ハウジング本体31と、蓋体32と、を備える。 More specifically, thehousing 21 of the present embodiment includes ahousing body 31 and alid 32.

ハウジング本体31は、周壁部41と、天壁部42と、内側突出部43と、係止突起部44と、を備える。 The housingmain body 31 includes aperipheral wall portion 41, atop wall portion 42, an inner protrudingportion 43, and alocking protruding portion 44.

周壁部41は、可動部材3の周囲を取り囲む角筒状の枠部である。図2等に示すように、周壁部41には、外部と内部空間21aとを連通する上述の吸引開口41aが形成されている。この吸引開口41aを通じて、皮下組織ST(図6参照)の間質に溜まった水分をハウジング21外へと排出することができる。この詳細は後述する。 Theperipheral wall portion 41 is a square tubular frame portion that surrounds the periphery of themovable member 3. As shown in FIG. 2 and the like, theperipheral wall portion 41 is formed with the above-mentionedsuction opening 41a that communicates the outside and theinternal space 21a. Through thesuction opening 41a, the water accumulated in the interstitium of the subcutaneous tissue ST (see FIG. 6) can be discharged to the outside of thehousing 21. The details will be described later.

天壁部42は、角筒状の周壁部41の一端部に連続して設けられている。天壁部42の中央には開口が形成されている。この天壁部42の開口には、蓋体32が設けられている。蓋体32は、天壁部42の開口を開閉可能に、天壁部42に対してヒンジ33により取り付けられている。 Thetop wall portion 42 is continuously provided at one end of the square tubularperipheral wall portion 41. An opening is formed in the center of thetop wall portion 42. Alid 32 is provided in the opening of thetop wall portion 42. Thelid 32 is attached to thetop wall 42 by ahinge 33 so that the opening of thetop wall 42 can be opened and closed.

天壁部42は、可動部材3に接触して、可動部材3が装着本体2のハウジング21から針部11の抜去方向A1(長手方向Aのうちの一方側の方向)に向かって抜け落ちることを抑制する。つまり、天壁部42は、可動部材3の抜去方向A1の移動を規制するストッパ部を構成している。 Thetop wall portion 42 comes into contact with themovable member 3 and prevents themovable member 3 from coming off from thehousing 21 of the mountingbody 2 in the removal direction A1 (one side of the longitudinal direction A) of theneedle portion 11. Suppress. That is, thetop wall portion 42 constitutes a stopper portion that regulates the movement of themovable member 3 in the removal direction A1.

内側突出部43は、周壁部41の他端部、すなわち、周壁部41のうち生体表面BS側となる開放端から内側に向かって突設されている。 The inner protrudingportion 43 projects inward from the other end of theperipheral wall portion 41, that is, from the open end of theperipheral wall portion 41 on the living body surface BS side.

係止突起部44は、周壁部41の内面から突出している。可動部材3は、後述する針支持部51が係止突起部44により支持されることで、抜去位置が維持される。可動部材3は、図4に示す状態から、所定の押圧力で挿入方向A2に押圧されることで、係止突起部44を乗り越えて、図5に示す挿入位置に移動することができる。 The lockingprojection 44 projects from the inner surface of theperipheral wall portion 41. Themovable member 3 is maintained in the removed position by supporting theneedle support portion 51, which will be described later, by the lockingprotrusion 44. By pressing themovable member 3 in the insertion direction A2 with a predetermined pressing force from the state shown in FIG. 4, themovable member 3 can get over the lockingprojection 44 and move to the insertion position shown in FIG.

ハウジング本体31の周壁部41、天壁部42、内側突出部43及び係止突起部44は、例えば、樹脂材料により一体成形してもよい。ハウジング本体31の材料としては、例えば、ポリエチレン、ポリプロピレン、エチレン−プロピレン共重合体等のポリオレフィン;エチレン−酢酸ビニル共重合体(EVA);ポリ塩化ビニル;ポリ塩化ビニリデン;ポリスチレン;ポリアミド;ポリイミド;ポリアミドイミド;ポリカーボネート;ポリ−(4−メチルペンテン−1);アイオノマー;アクリル樹脂;ポリメチルメタクリレート;アクリロニトリル−ブタジエン−スチレン共重合体(ABS樹脂);アクリロニトリル−スチレン共重合体(AS樹脂);ブタジエン−スチレン共重合体;ポリエチレンテレフタレート(PET)、ポリブチレンテレフタレート(PBT)、ポリシクロヘキサンテレフタレート(PCT)等のポリエステル;ポリエーテル;ポリエーテルケトン(PEK);ポリエーテルエーテルケトン(PEEK);ポリエーテルイミド;ポリアセタール(POM);ポリフェニレンオキシド;変性ポリフェニレンオキシド;ポリサルフォン;ポリエーテルサルフォン;ポリフェニレンサルファイド;ポリアリレート;芳香族ポリエステル(液晶ポリマー);ポリテトラフルオロエチレン、ポリフッ化ビニリデン、その他フッ素系樹脂;などの各種樹脂材料が挙げられる。 Theperipheral wall portion 41, thetop wall portion 42, the inner protrudingportion 43, and thelocking protruding portion 44 of thehousing body 31 may be integrally molded with, for example, a resin material. Examples of the material of thehousing body 31 include polyolefins such as polyethylene, polypropylene, and ethylene-propylene copolymer; ethylene-vinyl acetate copolymer (EVA); polyvinyl chloride; polyvinylidene chloride; polystyrene; polyamide; polyimide; polyamide. Iimide; Polycarbonate; Poly- (4-methylpentene-1); Ionomer; Acrylic resin; Polymethylmethacrylate; Acrylonitrile-butadiene-styrene copolymer (ABS resin); Acrylonitrile-styrene copolymer (AS resin); butadiene- Styrene copolymers; polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexane terephthalate (PCT); polyether; polyetherketone (PEK); polyetheretherketone (PEEK); polyetherimide; Polyacetal (POM); polyphenylene oxide; modified polyphenylene oxide; polysulfone; polyethersulfone; polyphenylene sulfide; polyallylate; aromatic polyester (liquid crystal polymer); polytetrafluoroethylene, polyvinylidene fluoride, and other fluororesins; Resin material can be mentioned.

蓋体32は、上述したように、ハウジング本体31の天壁部42の開口を開閉可能に取り付けられている。蓋体32をハウジング本体31に対して開放することで、天壁部42の開口を通じて、ハウジング21の内部空間21aが外部と連通する。 As described above, thelid 32 is attached so that the opening of thetop wall portion 42 of thehousing body 31 can be opened and closed. By opening thelid 32 to thehousing body 31, theinternal space 21a of thehousing 21 communicates with the outside through the opening of thetop wall 42.

本実施形態の蓋体32には、開閉の際に操作される操作溝部32aが形成されている。操作溝部32aに指を掛けることで、蓋体32の開閉操作を容易に行うことができる。 Thelid 32 of the present embodiment is formed with anoperation groove portion 32a that is operated at the time of opening and closing. By hooking a finger on theoperation groove portion 32a, thelid body 32 can be easily opened and closed.

蓋体32がハウジング本体31に対して閉じられた状態では、ハウジング本体31と蓋体32との間にシール部材を介在させることが好ましい。このようにすることで、内部空間21aの密閉性を高めることができる。これにより、除水治療において内部空間21aを減圧し易くなり、除水効率を高めることができる。 When thelid 32 is closed with respect to thehousing body 31, it is preferable that a sealing member is interposed between thehousing body 31 and thelid 32. By doing so, the airtightness of theinternal space 21a can be enhanced. As a result, theinternal space 21a can be easily decompressed in the water removal treatment, and the water removal efficiency can be improved.

蓋体32の材料としては、ハウジング本体31に用いることが可能な上述の材料を用いることができる。ハウジング本体31及び蓋体32を同一の材料から構成されていてもよく、異なる材料から構成されていてもよい。 As the material of thelid 32, the above-mentioned material that can be used for thehousing body 31 can be used. Thehousing body 31 and thelid 32 may be made of the same material, or may be made of different materials.

装着部材22は、周壁部41の生体表面BS側となる開放端面、及び、内側突出部43の生体表面BS側となる面、に積層された粘着部材により構成することができる。装着部材22は、例えば、シート状の樹脂基材(例えば、ポリウレタンフィルム)に粘着層が積層されている、粘着部材としての粘着シートにより構成することができる。 The mountingmember 22 can be composed of an adhesive member laminated on the open end surface of theperipheral wall portion 41 on the biological surface BS side and the surface of the inner protrudingportion 43 on the biological surface BS side. The mountingmember 22 can be composed of, for example, an adhesive sheet as an adhesive member in which an adhesive layer is laminated on a sheet-shaped resin base material (for example, a polyurethane film).

但し、装着部材22は、周壁部41の生体表面BS側となる開放端面、及び、内側突出部43の生体表面BS側となる面、に塗布された粘着剤から構成されていてもよい。 However, the mountingmember 22 may be composed of an adhesive applied to the open end surface of theperipheral wall portion 41 on the biological surface BS side and the surface of the inner protrudingportion 43 on the biological surface BS side.

本実施形態では、生体表面BSに装着される装着本体2の装着面2aが、装着部材22の生体表面BS側の面により構成されている。 In the present embodiment, the mountingsurface 2a of the mountingbody 2 mounted on the biological surface BS is composed of the surface of the mountingmember 22 on the biological surface BS side.

[可動部材3]
可動部材3は、上述の針部11を備える。また、本実施形態の可動部材3は、装着本体2の上述のハウジング21に対して移動可能に保持されている。より具体的に、本実施形態の可動部材3は、ハウジング21の内部空間21aに収容された状態で、針部11の長手方向Aに移動可能である。
[Movable member 3]
Themovable member 3 includes the above-mentionedneedle portion 11. Further, themovable member 3 of the present embodiment is movably held with respect to the above-mentionedhousing 21 of the mountingbody 2. More specifically, themovable member 3 of the present embodiment can move in the longitudinal direction A of theneedle portion 11 in a state of being housed in theinternal space 21a of thehousing 21.

具体的に、本実施形態の可動部材3は、針支持部51と、この針支持部51から一方向に向かって突出する複数の針部11と、把持部52と、を備える。 Specifically, themovable member 3 of the present embodiment includes aneedle support portion 51, a plurality ofneedle portions 11 projecting from theneedle support portion 51 in one direction, and agrip portion 52.

本実施形態の針支持部51は、ハウジング21のハウジング本体31の周壁部41内に位置し、針部11の抜去方向A1及び挿入方向A2(長手方向Aのうちの抜去方向A1とは反対側の方向)に移動可能である。本実施形態の針支持部51は、ストッパ部としてのハウジング本体31の天壁部42に接触することで、抜去方向A1にそれ以上移動することが規制される。そのため、可動部材3は、ハウジング21のハウジング本体31から抜去方向A1に抜け落ちない。 Theneedle support portion 51 of the present embodiment is located in theperipheral wall portion 41 of thehousing body 31 of thehousing 21, and theneedle portion 11 is removed in the removing direction A1 and the insertion direction A2 (the side opposite to the removing direction A1 in the longitudinal direction A). It is possible to move in the direction of). Theneedle support portion 51 of the present embodiment is restricted from moving further in the removal direction A1 by coming into contact with thetop wall portion 42 of thehousing body 31 as a stopper portion. Therefore, themovable member 3 does not fall out from thehousing body 31 of thehousing 21 in the removal direction A1.

また、本実施形態の針支持部51は、ハウジング本体31の内側突出部43に接触することで、挿入方向A2にそれ以上移動することが規制される。そのため、可動部材3は、ハウジング21のハウジング本体31から挿入方向A2にも抜け落ちない。 Further, theneedle support portion 51 of the present embodiment is restricted from moving further in the insertion direction A2 by coming into contact with the inner protrudingportion 43 of thehousing body 31. Therefore, themovable member 3 does not fall out from thehousing body 31 of thehousing 21 in the insertion direction A2.

針支持部51は、針部11の基端を支持している。換言すれば、針部11は、針支持部51から挿入方向A2に向かって突出している。そのため、針部11は、針支持部51の抜去方向A1及び挿入方向A2の移動に追従して移動する。図4に示すように、針部11の針先11aは、針支持部51が係止突起部44に支持されている状態で、ハウジング21の内部空間21a内に位置している。これに対して、図5に示すように、針部11の針先11aは、針支持部51が内側突出部43に接触している状態で、ハウジング21の内部空間21aから外側に飛び出した状態となる。 Theneedle support portion 51 supports the base end of theneedle portion 11. In other words, theneedle portion 11 projects from theneedle support portion 51 in the insertion direction A2. Therefore, theneedle portion 11 moves following the movement of theneedle support portion 51 in the removal direction A1 and the insertion direction A2. As shown in FIG. 4, theneedle tip 11a of theneedle portion 11 is located in theinternal space 21a of thehousing 21 in a state where theneedle support portion 51 is supported by the lockingprotrusion 44. On the other hand, as shown in FIG. 5, theneedle tip 11a of theneedle portion 11 protrudes outward from theinternal space 21a of thehousing 21 in a state where theneedle support portion 51 is in contact with the inner protrudingportion 43. It becomes.

換言すれば、可動部材3は、針部11が装着面2aよりも突出する挿入位置(図5参照)と、針部11が装着面2aよりも突出しない抜去位置(図4参照)と、間を移動可能である。また、本実施形態の可動部材3は、針支持部51が係止突起部44に支持される状態とすることで、抜去位置に維持される。これに対して、本実施形態の可動部材3は、針支持部51が係止突起部44に支持されている係止状態が解除され、挿入方向A2に押し込まれることで、抜去位置から挿入位置に移動する(図5の白抜き矢印参照)。更に、本実施形態の可動部材3は、針支持部51の抜去方向A1側に突設されている把持部52を備える。そのため、把持部52が把持され、外力により抜去方向A1に引き上げられ、針支持部51が再び係止突起部44により支持される係止状態とされることで、本実施形態の可動部材3は、挿入位置から抜去位置に再び移動することができる。 In other words, themovable member 3 is between the insertion position where theneedle portion 11 protrudes from the mountingsurface 2a (see FIG. 5) and the removal position where theneedle portion 11 does not protrude from the mountingsurface 2a (see FIG. 4). Can be moved. Further, themovable member 3 of the present embodiment is maintained in the removed position by setting theneedle support portion 51 to be supported by the lockingprotrusion 44. On the other hand, in themovable member 3 of the present embodiment, the locked state in which theneedle supporting portion 51 is supported by the lockingprotrusion 44 is released and pushed in the insertion direction A2, so that themovable member 3 is pushed from the removal position to the insertion position. (See the white arrow in FIG. 5). Further, themovable member 3 of the present embodiment includes agrip portion 52 projecting from theneedle support portion 51 on the removal direction A1 side. Therefore, thegrip portion 52 is gripped, pulled up in the removal direction A1 by an external force, and theneedle support portion 51 is brought into a locked state in which theneedle support portion 51 is again supported by the lockingprojection 44, so that themovable member 3 of the present embodiment is , Can be moved again from the insertion position to the removal position.

本実施形態において、可動部材3の上述の一連の操作は、蓋体32をハウジング本体31に対いて開放させた状態とすることで、実行可能である。 In the present embodiment, the above-mentioned series of operations of themovable member 3 can be performed by keeping thelid 32 open with respect to thehousing body 31.

針支持部51及び把持部52は、上述したハウジング本体31の材料と同様の樹脂材料から形成可能である。また、針支持部51及び把持部52は、針部11と同じ金属材料から形成されてもよい。 Theneedle support portion 51 and thegrip portion 52 can be formed from the same resin material as the material of thehousing body 31 described above. Further, theneedle support portion 51 and thegrip portion 52 may be formed of the same metal material as theneedle portion 11.

針部11の最大外径は、0.1mm〜0.3mmとすることが好ましく、0.1mm〜0.18mmとすることがより好ましい。針部11の最大外径を0.1mm以上とすることで、針部11を挿入した状態での穿刺孔が小さくなり過ぎない。そのため、皮下組織ST(図6参照)の間質に溜まった水分の単位時間当たりの吸引量を、所定量以上に確保することができる。また、針部11の最大外径を0.3mm以下とすることで、針部11の刺通抵抗を下げることができ、穿刺時に患者Pの感じる痛みを軽減することができる。 The maximum outer diameter of theneedle portion 11 is preferably 0.1 mm to 0.3 mm, more preferably 0.1 mm to 0.18 mm. By setting the maximum outer diameter of theneedle portion 11 to 0.1 mm or more, the puncture hole in the state where theneedle portion 11 is inserted does not become too small. Therefore, the suction amount of the water accumulated in the interstitium of the subcutaneous tissue ST (see FIG. 6) per unit time can be secured to a predetermined amount or more. Further, by setting the maximum outer diameter of theneedle portion 11 to 0.3 mm or less, the puncture resistance of theneedle portion 11 can be reduced, and the pain felt by the patient P at the time of puncture can be reduced.

針部11の穿刺可能長さは、0.2mm〜1.5mmとすることが好ましい。針部11の穿刺可能長さを0.2mm以上とすることで、針部11の針先11aを、表皮S(図6参照)を貫き真皮D(図6参照)まで到達させ易くなる。そのため、皮下組織ST(図6参照)の間質に溜まった水分を吸引し易くなる。また、針部11の穿刺可能長さを1.5mm以下とすることで、針部11の針先11aを、皮下組織ST(図6参照)まで到達し難くすることができる。そのため、患者Pの感じる痛みを軽減することができる。 The punctureable length of theneedle portion 11 is preferably 0.2 mm to 1.5 mm. By setting the punctureable length of theneedle portion 11 to 0.2 mm or more, it becomes easy for theneedle tip 11a of theneedle portion 11 to penetrate the epidermis S (see FIG. 6) and reach the dermis D (see FIG. 6). Therefore, it becomes easy to suck the water accumulated in the interstitium of the subcutaneous tissue ST (see FIG. 6). Further, by setting the punctureable length of theneedle portion 11 to 1.5 mm or less, it is possible to make it difficult for theneedle tip 11a of theneedle portion 11 to reach the subcutaneous tissue ST (see FIG. 6). Therefore, the pain felt by the patient P can be reduced.

また、本実施形態の針部11は、針先11aに向かって細くなるテーパ針であるが、長手方向で外径が一様な形状であってもよい。針部11の材料としては、ステンレス鋼、アルミニウムまたはアルミニウム合金、チタンまたはチタン合金等の金属材料を使用することができる。 Further, theneedle portion 11 of the present embodiment is a tapered needle that tapers toward theneedle tip 11a, but may have a shape having a uniform outer diameter in the longitudinal direction. As the material of theneedle portion 11, a metal material such as stainless steel, aluminum or aluminum alloy, titanium or titanium alloy can be used.

次に、図6を参照して、本実施形態の可動部材3に形成されている貫通孔Hの詳細について説明する。可動部材3には、上述したように、長手方向Aに貫通する少なくとも1つの貫通孔Hが形成されている。本実施形態の可動部材3には、2種類の貫通孔Hが形成されている。1種目の貫通孔Hは、針部11を長手方向Aに貫通する貫通孔h1である。2種目の貫通孔Hは、針部11を長手方向Aに貫通せず、針支持部51を長手方向Aに貫通する貫通孔h2である。以下、貫通孔h1、h2を区別するため、説明の便宜上、貫通孔h1を「第1貫通孔h1」と記載し、貫通孔h2を「第2貫通孔h2」と記載する。 Next, with reference to FIG. 6, the details of the through hole H formed in themovable member 3 of the present embodiment will be described. As described above, themovable member 3 is formed with at least one through hole H penetrating in the longitudinal direction A. Two types of through holes H are formed in themovable member 3 of the present embodiment. The first type of through hole H is a through hole h1 that penetrates theneedle portion 11 in the longitudinal direction A. The second type of through hole H is a through hole h2 that does not penetrate theneedle portion 11 in the longitudinal direction A but penetrates theneedle support portion 51 in the longitudinal direction A. Hereinafter, in order to distinguish the through holes h1 and h2, the through hole h1 will be referred to as a “first through hole h1” and the through hole h2 will be referred to as a “second through hole h2” for convenience of explanation.

可動部材3に貫通孔Hを設けることで、針部11を生体に穿刺した状態のまま、皮下組織STの間質に溜まった水分を体外へと排出することが可能となる(図6の破線矢印参照)。具体的に、針部11を生体に穿刺した状態で、ハウジング21(図5参照)の内部空間21aを負圧状態にすれば、第1貫通孔h1を通じて、間質に溜まった水分を吸い上げることができる。更に、針部11の周面を伝って生体表面BS上に排出される水分に関しても、第2貫通孔h2を通じて、吸い上げることができる。以上のように、本実施形態の装着器具1によれば、可動部材3よりも抜去方向A1側に位置する吸引開口41a(図5参照)を利用して、内部空間21aを減圧することで、第1貫通孔h1及び第2貫通孔h2を通じて、皮下組織STの間質に溜まった水分を体外に排出できる。 By providing the through hole H in themovable member 3, it is possible to drain the water accumulated in the interstitium of the subcutaneous tissue ST to the outside of the body while theneedle portion 11 is punctured into the living body (broken line in FIG. 6). See arrow). Specifically, if theinternal space 21a of the housing 21 (see FIG. 5) is placed in a negative pressure state with theneedle portion 11 punctured into the living body, the water accumulated in the interstitium is sucked up through the first through hole h1. Can be done. Further, the water discharged on the biological surface BS along the peripheral surface of theneedle portion 11 can also be sucked up through the second through hole h2. As described above, according to the mounting device 1 of the present embodiment, theinternal space 21a is depressurized by using thesuction opening 41a (see FIG. 5) located on the removal direction A1 side of themovable member 3. Through the first through hole h1 and the second through hole h2, the water accumulated in the interstitium of the subcutaneous tissue ST can be discharged to the outside of the body.

本実施形態では、可動部材3の全ての針部11に第1貫通孔h1が形成されているが、一部の針部11のみに第1貫通孔h1を形成してもよい。但し、除水効率を高める観点では、全ての針部11に第1貫通孔h1を設けることが好ましい。 In the present embodiment, the first through hole h1 is formed in all theneedle portions 11 of themovable member 3, but the first through hole h1 may be formed only in a part of theneedle portions 11. However, from the viewpoint of increasing the water removal efficiency, it is preferable to provide the first through hole h1 in all theneedle portions 11.

第2貫通孔h2が形成される位置は、針部11が設けられていない位置であれば特に限定されないが、複数の針部11の間の位置に設けることが好ましい。このようにすれば、複数の針部11の周囲から生体表面BS上に排出される水分を、1つの第2貫通孔h2を共用させて、効率的に体外に排出することができる。また、可動部材3を長手方向Aで見た平面視において、第2貫通孔h2の位置は、隣接する2つの第1貫通孔h1の中間位置とすることが好ましい。このようにすれば、生体表面BS上における貫通孔Hの位置のばらつきを抑制でき、複数の針部11が穿刺されている穿刺領域の全域から均一に水分を体外へと排出できる。 The position where the second through hole h2 is formed is not particularly limited as long as theneedle portion 11 is not provided, but it is preferably provided at a position between the plurality ofneedle portions 11. By doing so, the water discharged from the periphery of the plurality ofneedle portions 11 onto the biological surface BS can be efficiently discharged to the outside of the body by sharing one second through hole h2. Further, in a plan view of themovable member 3 in the longitudinal direction A, the position of the second through hole h2 is preferably an intermediate position between the two adjacent first through holes h1. By doing so, the variation in the position of the through hole H on the biological surface BS can be suppressed, and the water can be uniformly discharged to the outside of the body from the entire puncture region where the plurality ofneedle portions 11 are punctured.

本実施形態の各貫通孔Hの内径は、長手方向Aの全域に亘って一定であるが、長手方向Aの位置によって異なっていてもよい。例えば、各貫通孔Hの内径が、抜去方向A1に向かうにつれて漸減又は漸増してもよい。また、例えば、第1貫通孔h1の形状は、針部11の形状に沿ったテーパ状になっていてもよい。このようにすれば、第1貫通孔h1の内径が一定である場合に比べて、第1貫通孔h1の排出できる単位時間当たりの体液量が増加し、除水効率を上げることができる。 The inner diameter of each through hole H of the present embodiment is constant over the entire area of the longitudinal direction A, but may differ depending on the position of the longitudinal direction A. For example, the inner diameter of each through hole H may gradually decrease or gradually increase toward the extraction direction A1. Further, for example, the shape of the first through hole h1 may be tapered along the shape of theneedle portion 11. By doing so, the amount of body fluid that can be discharged from the first through hole h1 per unit time is increased as compared with the case where the inner diameter of the first through hole h1 is constant, and the water removal efficiency can be improved.

第1貫通孔h1の内径は、0.08mm〜0.28mmとすることが好ましく、0.08mm〜0.15mmとすることがより好ましい。第2貫通孔h2の内径は、例えば、0.1mm〜1.0mmとすることが好ましい。なお、第2貫通孔h2の内径は、第1貫通孔h1の内径よりも大きいことが好ましい。刺通抵抗の観点から、針部11の外径は小さいことが好ましいため、第1貫通孔h1の内径についても小さいことが好ましい。これに対して、第1貫通孔h1の内径が小さくなると、第1貫通孔h1から排出できる単位時間当たりの体液量が減少し、除水効率は下がる。そのため、第2貫通孔h2を大きくすることで、第1貫通孔h1及び第2貫通孔h2の全体での除水効率を確保することができる。したがって、第2貫通孔h2の内径を、第1貫通孔h1の内径よりも大きくすることが好ましい。 The inner diameter of the first through hole h1 is preferably 0.08 mm to 0.28 mm, more preferably 0.08 mm to 0.15 mm. The inner diameter of the second through hole h2 is preferably 0.1 mm to 1.0 mm, for example. The inner diameter of the second through hole h2 is preferably larger than the inner diameter of the first through hole h1. From the viewpoint of piercing resistance, the outer diameter of theneedle portion 11 is preferably small, so that the inner diameter of the first through hole h1 is also preferably small. On the other hand, when the inner diameter of the first through hole h1 becomes smaller, the amount of body fluid that can be discharged from the first through hole h1 per unit time decreases, and the water removal efficiency decreases. Therefore, by enlarging the second through hole h2, it is possible to secure the water removal efficiency of the first through hole h1 and the second through hole h2 as a whole. Therefore, it is preferable that the inner diameter of the second through hole h2 is larger than the inner diameter of the first through hole h1.

[装着器具1を用いた除水治療]
次に、本実施形態の装着器具1を用いて行う除水治療の詳細について説明する。
[Water removal treatment using wearing device 1]
Next, the details of the water removal treatment performed by using the wearing device 1 of the present embodiment will be described.

図1に示すように、患者Pに対して除水治療を行う際は、例えば下股などの患者Pの対象部位に、装着器具1を装着する。 As shown in FIG. 1, when performing water removal treatment on patient P, the wearing device 1 is attached to the target site of patient P, for example, the lower crotch.

装着器具1を生体表面BSに装着した状態では、可動部材3は抜去位置にある(図4参照)。この状態から、可動部材3を挿入方向A2に押圧し、可動部材3を挿入位置に移動させる(図5の白抜き矢印参照)。これにより、針部11を生体表面BSに穿刺することができる。針部11の針先11aは、表皮S(図6参照)を貫き真皮D(図6参照)に到達する。 When the mounting device 1 is mounted on the biological surface BS, themovable member 3 is in the removed position (see FIG. 4). From this state, themovable member 3 is pressed in the insertion direction A2 to move themovable member 3 to the insertion position (see the white arrow in FIG. 5). As a result, theneedle portion 11 can be punctured into the biological surface BS. Theneedle tip 11a of theneedle portion 11 penetrates the epidermis S (see FIG. 6) and reaches the dermis D (see FIG. 6).

そして、針部11が生体に穿刺された状態(図5参照)で、装着本体2のハウジング21の内部空間21aを負圧状態にする。これにより、複数の貫通孔H(本実施形態では複数の第1貫通孔h1及び複数の第2貫通孔h2)を通じて、皮下組織ST(図6参照)の間質に溜まった水分が可動部材3を通過し、内部空間21aのうち可動部材3よりも抜去方向A1側の部分へと吸い上げられる。つまり、皮下組織ST(図6参照)の間質に溜まった水分を、針部11を生体に穿刺した状態のまま、複数の貫通孔Hを通じて、体外に排出できる。具体的には、吸引チューブ101の一端を、ハウジング21のハウジング本体31の吸引開口41aに接続する。また、吸引チューブ101の他端を、吸引装置100(図1参照)に接続する。この状態で、吸引装置100により吸引することで、ハウジング21の内部空間21aを負圧状態にすることができる。ハウジング21の内部空間21aに吸い上げられた水分は、吸引チューブ101を通じて、吸引装置100へと吸引される。 Then, in a state where theneedle portion 11 is punctured by the living body (see FIG. 5), theinternal space 21a of thehousing 21 of the mountingbody 2 is put into a negative pressure state. As a result, the water accumulated in the interstitium of the subcutaneous tissue ST (see FIG. 6) is transferred to themovable member 3 through the plurality of through holes H (in the present embodiment, the plurality of first through holes h1 and the plurality of second through holes h2). Is sucked up to the portion of theinternal space 21a on the removal direction A1 side of themovable member 3. That is, the water accumulated in the interstitium of the subcutaneous tissue ST (see FIG. 6) can be discharged to the outside of the body through the plurality of through holes H while theneedle portion 11 is punctured into the living body. Specifically, one end of thesuction tube 101 is connected to thesuction opening 41a of thehousing body 31 of thehousing 21. Further, the other end of thesuction tube 101 is connected to the suction device 100 (see FIG. 1). In this state, theinternal space 21a of thehousing 21 can be brought into a negative pressure state by sucking with thesuction device 100. The water sucked up in theinternal space 21a of thehousing 21 is sucked into thesuction device 100 through thesuction tube 101.

吸引装置100による上述の吸引を、例えば、2〜8時間継続して行うことで、1回の除水治療を完了することができる。 One water removal treatment can be completed by continuously performing the above-mentioned suction by thesuction device 100, for example, for 2 to 8 hours.

次に、上述した装着器具1の第1の変形例としての装着器具201について、図7Aを参照して説明する。図7Aに示すように、装着器具201は、装着本体2と、可動部材203と、を備える。図7Aに示す装着器具201は、図4等に示す装着器具1と比較して、可動部材203の構成のみが相違している。図7Aは、装着本体2の係止突起部44(図4参照)が省略されて描かれている。 Next, the mountingdevice 201 as the first modification of the mounting device 1 described above will be described with reference to FIG. 7A. As shown in FIG. 7A, the mountingdevice 201 includes a mountingbody 2 and amovable member 203. The mountingdevice 201 shown in FIG. 7A differs from the mounting device 1 shown in FIG. 4 or the like only in the configuration of themovable member 203. FIG. 7A is drawn with the locking projection 44 (see FIG. 4) of the mountingbody 2 omitted.

図7Aに示す可動部材203は、針支持部51と、この針支持部51から一方向に向かって突出する複数の針部211と、把持部52と、を備える。 Themovable member 203 shown in FIG. 7A includes aneedle support portion 51, a plurality ofneedle portions 211 projecting from theneedle support portion 51 in one direction, and agrip portion 52.

図7Aに示す複数の針部211の全ての針先211aで構成される針先集合面Xは、湾曲面により構成されている。「針先集合面」とは、可動部材の複数の針部の全ての針先を通過するように形成される仮想面を意味する。針先集合面Xにおいて、隣接する針先211aの間の空隙は、全ての針先211aが滑らかに連なるように近似される。 The needle tip gathering surface X composed of all theneedle tips 211a of the plurality ofneedle portions 211 shown in FIG. 7A is composed of curved surfaces. The "needle tip collecting surface" means a virtual surface formed so as to pass through all the needle tips of a plurality of needle portions of the movable member. On the needle tip gathering surface X, the gap between theadjacent needle tips 211a is approximated so that all theneedle tips 211a are smoothly connected.

より具体的に、図7Aに示す針支持部51は平板状である。また、図7Aに示す複数の針部211の穿刺可能長さは、周縁部から中央部に向かうにつれて短くなっている。このようにすることで、図7Aに示すように、針先集合面Xを、中央部が凹形状となる湾曲面により構成することができる。 More specifically, theneedle support portion 51 shown in FIG. 7A has a flat plate shape. Further, the punctureable lengths of the plurality ofneedle portions 211 shown in FIG. 7A become shorter from the peripheral portion to the central portion. By doing so, as shown in FIG. 7A, the needle tip gathering surface X can be formed by a curved surface having a concave central portion.

但し、針先集合面Xを湾曲面により構成するための手段は、図7Aに示す手段に限られない。 However, the means for forming the needle tip collecting surface X by the curved surface is not limited to the means shown in FIG. 7A.

図7Bは、上述した装着器具1の第2の変形例としての装着器具301を示す図である。図7Bでは、針支持部351が湾曲板状である。それに対して、図7Bに示す複数の針部11の穿刺可能長さは略一様である。これにより、複数の針部11の針先11aの集合で構成される針先集合面Xが湾曲面となる。このようにすることで、湾曲面から構成される針先集合面Xを実現してもよい。 FIG. 7B is a diagram showing a mountingdevice 301 as a second modification of the mounting device 1 described above. In FIG. 7B, theneedle support portion 351 has a curved plate shape. On the other hand, the punctureable lengths of the plurality ofneedle portions 11 shown in FIG. 7B are substantially uniform. As a result, the needle tip gathering surface X composed of a set ofneedle tips 11a of the plurality ofneedle portions 11 becomes a curved surface. By doing so, the needle tip collecting surface X composed of curved surfaces may be realized.

本開示に係る装着器具は、上述した実施形態及び変形例に記載した具体的な構成に限られず、特許請求の範囲を逸脱しない限り、種々の変形・変更が可能である。例えば、上述した本実施形態のハウジング21は、ハウジング本体31と、蓋体32と、を備える構成としているが、開閉可能な蓋体32が設けられておらず、開閉不能な天壁部42で覆われる構成としてもよい。かかる場合には、例えば、天壁部42を弾性変形させることで、可動部材3を挿入方向A2に押圧して移動させるようにすればよい。また、針部11を抜去する場合は、除水治療の終了後に装着器具1全体を生体表面BSから取り外すことで、同時に針部11を生体から抜去すればよい。 The mounting device according to the present disclosure is not limited to the specific configuration described in the above-described embodiment and modification, and can be variously modified or modified as long as it does not deviate from the scope of claims. For example, thehousing 21 of the present embodiment described above includes ahousing body 31 and alid 32, but thelid 32 that can be opened and closed is not provided, and thetop wall portion 42 that cannot be opened and closed is used. It may be covered. In such a case, for example, themovable member 3 may be pressed and moved in the insertion direction A2 by elastically deforming thetop wall portion 42. Further, when theneedle portion 11 is removed, the entire wearing device 1 may be removed from the living body surface BS after the water removal treatment is completed, and theneedle portion 11 may be removed from the living body at the same time.

本開示は装着器具に関する。 The present disclosure relates to a mounting device.

1、201、301:装着器具
2:装着本体
2a:装着面
3、203:可動部材
11、211:針部
11a、211a:針先
21:ハウジング
21a:内部空間
22:装着部材
31:ハウジング本体
32:蓋体
32a:操作溝部
33:ヒンジ
41:周壁部
41a:吸引開口
42:天壁部
43:内側突出部
44:係止突起部
51、351:針支持部
52:把持部
100:吸引装置
101:吸引チューブ
A:針部の長手方向
A1:針部の抜去方向
A2:針部の挿入方向
D:真皮
H:貫通孔
h1:第1貫通孔
h2:第2貫通孔
P:患者
S:表皮
X:針先集合面
BS:生体表面
ST:皮下組織
1, 201, 301: Mounting device 2: Mountingbody 2a: Mountingsurface 3, 203:Movable member 11, 211:Needle portion 11a, 211a: Needle tip 21:Housing 21a: Internal space 22: Mounting member 31: Housing body 32 :Lid 32a: Operation groove 33: Hinge 41:Peripheral wall 41a: Suction opening 42: Top wall 43: Inside protrusion 44: Lockingprotrusion 51, 351: Needle support 52: Grip 100: Suction device 101 : Suction tube A: Longitudinal direction of needle part A1: Needle part removal direction A2: Needle part insertion direction D: Dermis H: Through hole h1: First through hole h2: Second through hole P: Patient S: Epidermis X : Needle tip gathering surface BS: Living surface ST: Subcutaneous tissue

Claims (5)

Translated fromJapanese
生体表面に装着される装着面を備える装着本体と、
前記生体表面に挿入可能な針部を備え、前記装着本体に対して移動可能に保持されている可動部材と、を備え、
前記可動部材は、前記針部が前記装着面よりも突出する挿入位置と、前記針部が前記装着面よりも突出しない抜去位置と、との間を前記装着本体に対して移動可能であり、
前記可動部材には、前記針部の長手方向に貫通する少なくとも1つの貫通孔が形成されている、装着器具。
A mounting body with a mounting surface that is mounted on the surface of the living body,
It is provided with a needle portion that can be inserted into the surface of the living body, and a movable member that is movably held with respect to the mounting body.
The movable member is movable with respect to the mounting body between an insertion position in which the needle portion protrudes from the mounting surface and an extraction position in which the needle portion does not protrude from the mounting surface.
A mounting instrument in which the movable member is formed with at least one through hole penetrating in the longitudinal direction of the needle portion.
前記少なくとも1つの貫通孔は、前記針部を前記長手方向に貫通する貫通孔を含む、請求項1に記載の装着器具。 The mounting device according to claim 1, wherein the at least one through hole includes a through hole that penetrates the needle portion in the longitudinal direction. 前記可動部材は、前記針部の基端を支持する針支持部を備え、
前記少なくとも1つの貫通孔は、前記針部を前記長手方向に貫通せず、前記針支持部を前記長手方向に貫通する貫通孔を含む、請求項1又は2に記載の装着器具。
The movable member includes a needle support portion that supports the base end of the needle portion.
The mounting device according to claim 1 or 2, wherein the at least one through hole includes a through hole that does not penetrate the needle portion in the longitudinal direction but penetrates the needle support portion in the longitudinal direction.
前記装着本体は、前記可動部材を収容する内部空間を区画しており、
前記装着本体には、外部と前記内部空間とを連通する吸引開口が形成されている、請求項1から3のいずれか1つに記載の装着器具。
The mounting body partitions an internal space for accommodating the movable member.
The mounting device according to any one of claims 1 to 3, wherein a suction opening for communicating the outside and the internal space is formed in the mounting body.
前記可動部材は、前記針部を複数備え、
前記複数の針部の全ての針先で構成される針先集合面は、湾曲面により構成されている、請求項1から4のいずれか1つに記載の装着器具。
The movable member includes a plurality of the needle portions.
The mounting device according to any one of claims 1 to 4, wherein the needle tip collecting surface formed of all the needle tips of the plurality of needle portions is formed of a curved surface.
JP2019065045A2019-03-282019-03-28Mounting instrumentPendingJP2020162779A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP2004532079A (en)*2001-05-112004-10-21ザ プロクター アンド ギャンブル カンパニー Portable interstitial fluid monitoring system
US20050033197A1 (en)*2001-12-062005-02-10Cottler Patrick SApparatus for fluid transport and related method thereof
US20070004989A1 (en)*2005-06-292007-01-04Parvinder DhillonDevice for transdermal sampling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP2004532079A (en)*2001-05-112004-10-21ザ プロクター アンド ギャンブル カンパニー Portable interstitial fluid monitoring system
US20050033197A1 (en)*2001-12-062005-02-10Cottler Patrick SApparatus for fluid transport and related method thereof
US20070004989A1 (en)*2005-06-292007-01-04Parvinder DhillonDevice for transdermal sampling

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