JP3743903B2

JP3743903B2 - Mouthpiece for pulmonary function measuring device and manufacturing method thereof

Info

Publication number: JP3743903B2
Application number: JP2001004236A
Authority: JP
Inventors: 勝飯川
Original assignee: CHEST M.I.,INCORPORATED
Current assignee: CHEST M.I.,INCORPORATED
Priority date: 2001-01-11
Filing date: 2001-01-11
Publication date: 2006-02-08
Anticipated expiration: 2021-01-11
Also published as: JP2002204792A

Description

【０００１】
【発明の属する技術分野】
本発明は、肺活量測定やフローボリュームカーブ等のスパイロメトリーを測定する肺機能測定装置に用いるマウスピースおよびその製造方法に関する。
【０００２】
【従来の技術】
各種肺機能測定装置による測定では、装置と被測定者の気道を接続するためにマウスピースを口にくわえて呼吸をする。
このように用いられるマウスピースに、図６、図７、図８に示す如く、断面形状が一端が円形の装置との接続部１と他端が多少偏平のくわえ部２となっている筒体のシリコンゴム製による成形品の複数回使用のマウスピースがある。
【０００３】
【発明が解決しようとする課題】
このようなマウスピースによると、マウスピースの装置接続端の断面形状はいずれも、装置の接合部規格に合わせて内径が２５ｍｍの円形であるが、他端の口にくわえる端部の断面形状は、くわえ易くしかもマウスピースと唇との間から呼吸が漏れないように偏平な形状をしていることが望ましい。
【０００４】
このため、合成樹脂の成形品であるシリコンゴム製のマウスピースはそのような形状に成形することができるが、単価が高く、複数回使用するもので、使用する度に洗浄・消毒をして次の使用にそなえるものであり、その洗浄・消毒を完全に行うために非常な手間と時間が必要であると共にそのための経費の負担が大きいという問題がある。
【０００５】
【課題を解決するための手段】
そこで本発明は、紙管の一端に成型した矩形が紙の復元力で丸味を帯びて略楕円形に形成された扁平なくわえ部とし、そのくわえ部から他端の円形の接続部にむけて順次円形となる形状とした肺機能測定装置用マウスピースとし、さらに、その製造方法として所望径の円筒を紙管で形成し、その一端から断面形状矩形の成形型を挿入し、外側から押圧具で押圧することにより成型した矩形が紙の復元力で丸味を帯びて略楕円形の扁平なくわえ部を形成すると共にそのくわえ部から接続端に向けて順次円筒になるように成形することを特徴とする。
【０００６】
【発明の実施の形態】
以下に本発明の実施の形態例を図面を用いて説明する。
図１は斜視図、図２は正面図、図３は加工前の管体、図４は型枠の使用状態を示す説明図であり、図において、３は所望径の円筒の紙管であり、平巻きでも螺旋巻きでもよく、その表側はろうや樹脂等の溌水材をコーティングしたりしみ込ませたりして溌水加工した表装紙で覆って、口にくわえたときに唇がくっついたりマウスピースがぬれて変形しないようにしてある。
【０００７】
その紙管３の長さおよび径は適宜定めればよいが、本実施の形態例では長さ７５ｍｍ、内径２５ｍｍ、管厚さ０．５ｍｍとしてある。
４は断面形状矩形の成形型であり、先部は上記紙管３内に挿入し易いように先端に向けて多少すぼめて細くしてある。本実施の形態例では成形に必要な成形部の寸法は厚さ１０ｍｍ、幅３０ｍｍであり、長さは適宜である。
【０００８】
このような成形型４を紙管３の一端から挿入し、図５に示す如く、外側からクランパー等の押圧具７により幅方向（偏平方向）の両側を端部から所定の寸法、本実施の形態例では３０ｍｍにわたって押圧することにより、成形型４を挿入した端部が偏平に成形されてくわえ部５となり、他端の円形の接続部６に向けて順次円筒になる形に成形できる。この成形時に押圧力を適宜加減することによって、図２に示す如く、紙の復元力で成形後の矩形が丸味を帯びて略楕円形に成形される。
【０００９】
また、必要に応じてこの押圧具７による押圧の際に、厚さ方向もその形を保つために保持具で外側から保持してもよい。
なお、この成形型４を所望の形状に変えることによってくわえ部５を所望の形状に成形することが可能となる。
このようにして成形した紙管製のマウスピースによると、使用者が肺機能測定装置を使用するに際して、円形の接続部を装置に接続することによって使用することができ、使用後は廃棄処分される。
【００１０】
【発明の効果】
以上詳細に説明した本発明によると、所望径の円筒を紙管で形成し、その一端から断面形状矩形の成形型を挿入し、外側から押圧具で押圧することにより、成形型と押圧具によって一端に偏平なくわえ部を形成すると共にそのくわえ部から接続端に向けて順次円筒になるように成形することにより、口でくわえる端部が偏平となり、そこから接続端に向けて順次円筒になる形のマウスピースとすることができ、紙管を、一端が偏平なくわえ部で他端の円型の接続部にむけて順次円筒となる形状に成形することができる効果を有する。
【００１１】
また、マウスピースを紙管で成形することにより、使い捨てが可能となり、衛生管理が容易となると共に廃棄物としても公害の発生のないものとなる効果を有する。
【図面の簡単な説明】
【図１】実施の形態例を示す斜視図
【図２】正面図
【図３】紙管の斜視図
【図４】成形型の説明図
【図５】成形状態の説明図
【図６】従来例の断面説明図
【図７】図６Ａ−Ａ線断面図
【図８】図６Ｂ−Ｂ線断面図
【符号の説明】
３紙管
４成形型
５くわえ部
６接続部
７押圧具[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mouthpiece used in a pulmonary function measuring apparatus for measuring spirometry such as spirometry or flow volume curve, and a method for manufacturing the same.
[0002]
[Prior art]
In the measurement by various pulmonary function measuring devices, a mouthpiece is added to the mouth to breathe in order to connect the device and the subject's airway.
As shown in FIGS. 6, 7 and 8, the mouthpiece used in this way is a cylindrical body in which the cross-sectional shape is a connection part 1 with a circular device at one end and a slightly flattened holding part 2 at the other end. There is a mouthpiece that can be used multiple times for a molded product made of silicon rubber.
[0003]
[Problems to be solved by the invention]
According to such a mouthpiece, the cross-sectional shape of the device connection end of the mouthpiece is circular with an inner diameter of 25 mm in accordance with the joint standard of the device, but the cross-sectional shape of the end portion added to the mouth of the other end is It is desirable to have a flat shape that is easy to hold and prevents breathing from between the mouthpiece and the lips.
[0004]
For this reason, the silicone rubber mouthpiece, which is a molded product of synthetic resin, can be molded into such a shape, but the unit price is high and it is used multiple times, and it must be cleaned and disinfected each time it is used. It is ready for the next use, and there is a problem that it takes a lot of labor and time to complete the cleaning and disinfection, and the cost for that is large.
[0005]
[Means for Solving the Problems]
In view of this, the present invention provides a flat grip portion in which a rectangular shape formed on one end of a paper tube is rounded by the restoring force of the paper and is formed into an approximately oval shape . From the grip portion to the circular connection portion on the other end. The mouthpiece for the lung function measuring device is formed into a circular shape, and as a manufacturing method thereof, a cylinder having a desired diameter is formed with a paper tube, a molding die having a rectangular cross section is inserted from one end thereof, and a pressing tool is formed from the outside. The rectangular shape formed by pressing with a round shape is formed by the restoring force of the paper to form a substantially elliptical flat grip portion, and is formed into a cylinder in turn from the grip portion toward the connection end. And
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 is a perspective view, FIG. 2 is a front view, FIG. 3 is a tube body before processing, FIG. 4 is an explanatory view showing a use state of a mold, and 3 is a cylindrical paper tube having a desired diameter. It can be flat wound or spiral wound, and the front side is coated with water-repellent material such as wax or resin and covered with water-coated cover paper, and the lips stick to the mouth when it is put on the mouth The piece is prevented from getting wet and deformed.
[0007]
The length and diameter of the paper tube 3 may be determined as appropriate, but in this embodiment, the length is 75 mm, the inner diameter is 25 mm, and the tube thickness is 0.5 mm.
Reference numeral 4 denotes a forming die having a rectangular cross section, and the tip is narrowed slightly toward the tip so as to be easily inserted into the paper tube 3. In the present embodiment, the dimensions of the molding part necessary for molding are a thickness of 10 mm and a width of 30 mm, and the length is appropriate.
[0008]
Such a mold 4 is inserted from one end of the paper tube 3, and as shown in FIG. 5, both sides in the width direction (flattened direction) are set to a predetermined dimension from the end by a pressing tool 7 such as a clamper from the outside. In the embodiment, by pressing over 30 mm, the end portion into which the forming die 4 is inserted is formed into a flat shape as a holding portion 5 and can be formed into a cylindrical shape sequentially toward the circular connecting portion 6 at the other end. By appropriately adjusting the pressing force at the time of forming, as shown in FIG. 2, the formed rectangle is rounded and formed into a substantially oval shape by the restoring force of the paper.
[0009]
Moreover, when pressing with the pressing tool 7, if necessary, the thickness direction may be held from the outside with a holding tool in order to keep the shape.
Note that the holding portion 5 can be formed into a desired shape by changing the mold 4 to a desired shape.
According to the mouthpiece made of paper tube formed in this way, when the user uses the pulmonary function measuring device, it can be used by connecting the circular connection part to the device, and it is discarded after use. The
[0010]
【The invention's effect】
According to the present invention described in detail above, a cylinder having a desired diameter is formed by a paper tube, a molding die having a rectangular cross-sectional shape is inserted from one end thereof, and pressed by a pressing tool from the outside. By forming a flat part at one end and forming a cylinder sequentially from the holding part toward the connection end, the end part held at the mouth becomes flat, and then becomes a cylinder from there toward the connection end. The mouthpiece can be formed into a shape, and the paper tube can be formed into a cylindrical shape sequentially toward the circular connecting portion at one end with a flat end at the other end.
[0011]
Further, by forming the mouthpiece with a paper tube, it can be disposable, and hygiene management is facilitated, and there is an effect that no waste is generated as waste.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment. FIG. 2 is a front view. FIG. 3 is a perspective view of a paper tube. FIG. 4 is an explanatory view of a molding die. Cross-sectional explanatory view of an example [FIG. 7] FIG. 6A-A cross-sectional view [FIG. 8] FIG. 6B-B cross-sectional view [Explanation of symbols]
3 Paper tube 4 Mold 5 Holding part 6 Connection part 7 Press

Claims

A rectangular shape formed at one end of the paper tube is rounded by the restoring force of the paper to form a flat gripper that is formed into an approximately oval shape, and then the shape gradually becomes circular from the gripper to the circular connection at the other end. A mouthpiece for a pulmonary function measuring device.

A cylinder with a desired diameter is formed by a paper tube, a molding die having a rectangular cross section is inserted from one end thereof, and the molded rectangle is rounded by the restoring force of the paper and is substantially elliptical by pressing with a pressing tool from the outside . A mouthpiece for a pulmonary function measuring device, characterized by forming a flat grip portion and forming a cylindrical shape sequentially from the grip portion toward a connection end.