JP2990572B2 - Manufacturing method of balloon for ultrasonic endoscope - Google Patents
Manufacturing method of balloon for ultrasonic endoscopeInfo
- Publication number
- JP2990572B2 JP2990572B2 JP6256932A JP25693294A JP2990572B2 JP 2990572 B2 JP2990572 B2 JP 2990572B2 JP 6256932 A JP6256932 A JP 6256932A JP 25693294 A JP25693294 A JP 25693294A JP 2990572 B2 JP2990572 B2 JP 2990572B2
- Authority
- JP
- Japan
- Prior art keywords
- balloon
- weight
- ultrasonic endoscope
- rubber
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Endoscopes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、超音波内視鏡に使用す
るバルーンの成形用金型及び該バルーンの製造方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for molding a balloon used in an ultrasonic endoscope and a method for producing the balloon.
【０００２】[0002]
【従来の技術】身体の診断に超音波を利用する方法が知
られている。通常超音波による診断は、超音波ビームを
身体の表面から身体内に向けて発信し、体内の病変部位
の診断を行う。また、近年、先端に超音波探触子を取り
付けた内視鏡、すなわち超音波内視鏡を用いて診断する
方法が行われている。この方法はカテーテルを使用して
超音波内視鏡を身体の内部に挿入し、超音波探触子から
病変部位に向けて超音波ビームを発信して診断する方法
である。この超音波内視鏡は、内視鏡の先端に超音波探
触子を取り付け固定し、この超音波探触子をバルーン
（ゴム風船）で封入した構造を有する。すなわち、内視
鏡の先端に超音波探触子を取り付け固定し、この超音波
探触子に、図２に示すごとき両端に開口部２４、２５を
有する小さな楕円形のバルーン２０を、バルーン装着ア
タッチメントを用いて装着する。このときバルーンの一
方の巻き上げ部２２を内視鏡の先端に設けられた溝に嵌
めこんで固定し、バルーンの他端の巻き上げ部２３を超
音波探触子の先端にバルーン内が密封状態になるよう固
定する。2. Description of the Related Art There is known a method of using ultrasonic waves for body diagnosis. Normally, diagnosis by ultrasonic waves involves transmitting an ultrasonic beam from the surface of the body toward the inside of the body to diagnose a lesion site in the body. In recent years, a method of diagnosing using an endoscope having an ultrasonic probe attached to the tip, that is, an ultrasonic endoscope has been performed. In this method, an ultrasonic endoscope is inserted into the body using a catheter, and an ultrasonic beam is transmitted from an ultrasonic probe toward a lesion site to make a diagnosis. This ultrasonic endoscope has a structure in which an ultrasonic probe is attached and fixed to the end of the endoscope, and the ultrasonic probe is sealed with a balloon (rubber balloon). That is, an ultrasonic probe is attached and fixed to the end of the endoscope, and a small elliptical balloon 20 having openings 24 and 25 at both ends as shown in FIG. 2 is attached to the ultrasonic probe. Attach using an attachment. At this time, one of the winding portions 22 of the balloon is fitted and fixed in a groove provided at the tip of the endoscope, and the winding portion 23 at the other end of the balloon is sealed to the tip of the ultrasonic probe inside the balloon. Fix so that it becomes.
【０００３】[0003]
【発明が解決しようとする課題】上記の超音波内視鏡を
用いる診断には、超音波内視鏡の先端に密封装着したバ
ルーンに脱気水を注入し膨脹させ、体腔壁へバルーンを
密着させた状態で超音波探触子から超音波ビームを発信
して診断する方法が取られている。この診断方法では、
バルーンに脱気水を供給したとき、バルーンは横方向に
ドーナツ状に膨らむが、この際バルーンは均一に膨らむ
ことが要求される。本発明は、均一に膨らますことがで
きる超音波内視鏡用バルーンを製造する方法を提供する
ことを目的とする。In the diagnosis using an ultrasonic endoscope, degassing water is injected into a balloon hermetically mounted at the tip of the ultrasonic endoscope, inflated, and the balloon is closely attached to the body cavity wall. A method of transmitting an ultrasonic beam from an ultrasonic probe in a state where the ultrasonic probe is made to perform a diagnosis is employed. In this diagnostic method,
When degassed water is supplied to the balloon, the balloon expands in a donut shape in the lateral direction. At this time, the balloon is required to expand uniformly. An object of the present invention is to provide a method for manufacturing a balloon for an ultrasonic endoscope that can be inflated uniformly.
【０００４】[0004]
【課題を解決するための手段】本発明者は、バルーンに
脱気水を供給したときに、バルーンを横方向に均一にド
ーナツ状に膨らませるには、バルーンを構成するゴムの
膜厚が均一であることは勿論であるが、その他に図２に
おける開口部２４の開口面と開口部２５の開口面とが平
行であるか否かが大きく影響することを知見した。そし
て、開口部２４の開口面と開口部２５の開口面とが平行
なバルーンを作るべく種々検討した結果、特定の形状を
した成形用金型を用いて成形することにより、開口部２
４の開口面と開口部２５の開口面とが平行なバルーンを
作ることに成功した。SUMMARY OF THE INVENTION The inventor of the present invention has proposed a method for uniformly inflating the balloon in a donut shape in the lateral direction when supplying degassed water to the balloon. Of course, it has been found that whether or not the opening surfaces of the opening 24 and the opening 25 in FIG. As a result of various investigations to make a balloon in which the opening surface of the opening 24 and the opening surface of the opening 25 are parallel, the opening 2 is formed by using a molding die having a specific shape.
4 and the opening surface of the opening 25 were made parallel to each other.
【０００５】すなわち本発明は、ほぼ楕円体のバルーン
部成形部とその長軸方向両端に連なる円柱状の巻き上げ
部成形部とを有し、バルーン部成形部と巻き上げ部成形
部との間に、巻き上げ部成形部の径より小さい径の溝部
分を設けたことを特徴とする超音波内視鏡用バルーン成
形金型である。[0005] That is, the present invention has a balloon-shaped molding portion having a substantially elliptical shape, and a cylindrical winding-up molding portion connected to both ends in the longitudinal direction thereof. A balloon molding die for an ultrasonic endoscope, wherein a groove portion having a diameter smaller than the diameter of the winding portion molding portion is provided.
【０００６】図１は本発明の超音波内視鏡用バルーン成
形用の金型の一例の平面図である。１はバルーン部成形
部、２、３は巻き上げ部成形部である。４はバルーン部
成形部１と巻き上げ部成形部２との間に設けられた溝部
分である。５はバルーン部成形部１と巻き上げ部成形部
３との間に設けられた溝部分である。６は巻き上げ部２
と溝部分４との間の傾斜部である。７は巻き上げ部３と
溝部分５との間の傾斜部である。また、８は成形型を支
持する円柱状の支持棒である。９は支持棒８の先端に設
けられたネジ部である。FIG. 1 is a plan view of an example of a mold for molding a balloon for an ultrasonic endoscope according to the present invention. Reference numeral 1 denotes a balloon portion forming portion, and reference numerals 2 and 3 denote a winding portion forming portion. Reference numeral 4 denotes a groove portion provided between the balloon portion forming portion 1 and the winding portion forming portion 2. Reference numeral 5 denotes a groove portion provided between the balloon portion forming portion 1 and the winding portion forming portion 3. 6 is the winding section 2
And the inclined portion between the groove portion 4. Reference numeral 7 denotes an inclined portion between the winding portion 3 and the groove portion 5. Reference numeral 8 denotes a cylindrical support rod for supporting the molding die. Reference numeral 9 denotes a screw portion provided at the tip of the support rod 8.
【０００７】バルーン部成形部１はほぼ楕円体をしてい
るが、使用する超音波探触子の形状に応じて変形させ得
る。またバルーン部成形部１の長軸方向両端１０、１１
の径は溝部分４、５の径に等しいが、これらの径も、使
用する内視鏡の先端の径の大きさ、及び超音波探触子の
径の大きさに合わせて適宜に変更する。支持棒８の先端
に設けたネジ部は、支持板に金型を螺着固定するための
ものである。本発明の超音波内視鏡用バルーン成形用の
金型は、ステンレスなどの金属、ポリフェニレンサルフ
ァイトなどの合成樹脂などを素材にして作る。金属製或
いは合成樹脂製の棒に旋盤掛けを行なって容易に製造で
きる。Although the balloon section forming section 1 has a substantially elliptical shape, it can be deformed according to the shape of the ultrasonic probe used. Further, both ends 10 and 11 in the long axis direction of the balloon portion forming portion 1
Are equal to the diameters of the groove portions 4 and 5, but these diameters are also appropriately changed in accordance with the size of the diameter of the tip of the endoscope used and the size of the diameter of the ultrasonic probe. . The screw portion provided at the tip of the support rod 8 is for screwing and fixing a mold to the support plate. The mold for molding a balloon for an ultrasonic endoscope of the present invention is made of a metal such as stainless steel, a synthetic resin such as polyphenylene sulfite, or the like. It can be easily manufactured by lathe hanging on a rod made of metal or synthetic resin.
【０００８】本発明の超音波内視鏡用バルーン成形用の
金型を用いて、バルーンを製造するには次のようにす
る。図１に示す金型は、一本一本個々に使用してもよい
が、通常は適当な大きさの板を支持板に用い、この支持
板にネジ孔を任意の個数設け、そのネジ孔に金型のネジ
部を螺着して成形に使用する。この金型を固定した支持
板を、金型が下方を向くように位置させて、ゴムラテッ
クスに金型を浸漬する。この際、図１における巻き上げ
部２の上部１２まで浸漬する。金型表面にゴムが付着
し、皮膜を形成する。次いで金型をゴムラテックスから
引上げ、乾燥する。その後巻き上げ部成形部２、３に形
成されたゴム膜を溝部分４、５に向かって巻き上げ、バ
ルーン部成形部の両端１０、１１まで巻き上げる。次い
で、ゴム膜を金型から離型し、水洗し、常法で加硫して
仕上げる。A balloon is manufactured by using the mold for molding a balloon for an ultrasonic endoscope of the present invention as follows. The dies shown in FIG. 1 may be used individually one by one, but usually, a plate of an appropriate size is used as a support plate, and an arbitrary number of screw holes are provided in the support plate, and the screw holes are provided. A screw part of a mold is screwed into the mold and used for molding. The support plate to which the mold is fixed is positioned so that the mold faces downward, and the mold is immersed in rubber latex. At this time, it is immersed to the upper part 12 of the winding part 2 in FIG. Rubber adheres to the mold surface and forms a film. The mold is then pulled up from the rubber latex and dried. Thereafter, the rubber films formed on the winding portion forming portions 2 and 3 are wound up toward the groove portions 4 and 5 and are wound up to both ends 10 and 11 of the balloon portion forming portion. Next, the rubber film is released from the mold, washed with water, and vulcanized by a conventional method to finish.
【０００９】図２は、上記のようにして得られた超音波
内視鏡用バルーンの斜視図である。２０は超音波内視鏡
用バルーンである。２１はバルーン部、２２は巻き上げ
部成形部２に形成させたゴム膜を巻き上げて作った巻き
上げ部である。２３は巻き上げ部成形部３に形成させた
ゴム膜を巻き上げて作った巻き上げ部である。また２
４、２５はバルーン２０の両端の開口部である。そし
て、このバルーン２０は、内視鏡の先端に取り付けた超
音波探触子に、バルーン装着アタッチメントを用いて装
着する。バルーン２０の巻き上げ部２２を内視鏡の先端
に設けられた溝に嵌め込み固定する。一方バルーン２０
の巻き上げ部２３を超音波探触子に、バルーン２０内が
密封状態になるように固定する。FIG. 2 is a perspective view of the balloon for an ultrasonic endoscope obtained as described above. Reference numeral 20 denotes a balloon for an ultrasonic endoscope. Reference numeral 21 denotes a balloon portion, and reference numeral 22 denotes a winding portion formed by rolling up a rubber film formed on the winding portion forming portion 2. Reference numeral 23 denotes a winding section formed by winding the rubber film formed on the winding section forming section 3. Also 2
Reference numerals 4 and 25 are openings at both ends of the balloon 20. The balloon 20 is mounted on an ultrasonic probe mounted on the end of the endoscope using a balloon mounting attachment. The winding portion 22 of the balloon 20 is fitted and fixed in a groove provided at the end of the endoscope. On the other hand balloon 20
Is fixed to the ultrasonic probe so that the inside of the balloon 20 is sealed.
【００１０】本発明の金型においては、金型の巻き上げ
部成形部２、３より小さい径の溝部分４、５を形成した
ので、金型の巻き上げ部成形部２、３に形成されたゴム
皮膜の巻き上げが均等に行なえ、そのため巻き上げを完
了した時に形成される開口部２４の開口面と開口部２５
の開口面とが平行になる。したがって、本発明の金型を
用いて成型することによって、ドーナツ状に均一に膨ら
ますことができる超音波内視鏡用バルーンを製造するこ
とができる。In the mold of the present invention, since the groove portions 4 and 5 having a smaller diameter than the winding portion forming portions 2 and 3 of the mold are formed, the rubber formed on the winding portion forming portions 2 and 3 of the mold. The film can be wound up evenly, so that the opening surface of the opening 24 and the opening 25 formed when the winding up is completed.
Is parallel to the opening surface. Therefore, by molding using the mold of the present invention, a balloon for an ultrasonic endoscope that can be uniformly inflated into a donut shape can be manufactured.
【００１１】また、本発明で上記の成形用金型を用いて
バルーンを成形するとき、ゴムラテックスとして天然ゴ
ムラテックスを用い、加硫剤等の配合剤を特定割合で配
合することによって、均一な膜厚のバルーンを円滑に製
造することができる。すなわち、本発明は、ゴムラテッ
クスとして、天然ゴムラテックス１００重量部（ゴム
分）、加硫剤１．０〜１．５重量部、加硫助剤０．５〜
１．０重量部、加硫促進剤０．４〜１．０重量部、老化
防止剤０．５〜１．０重量部からラテックスを使用して
超音波内視鏡用バルーンを製造する方法である。In the present invention, when a balloon is formed by using the above-mentioned molding die, a natural rubber latex is used as a rubber latex, and a compounding agent such as a vulcanizing agent is compounded in a specific ratio, whereby uniformity can be obtained. A balloon having a film thickness can be manufactured smoothly. That is, the present invention provides, as a rubber latex, 100 parts by weight of natural rubber latex (rubber content), 1.0 to 1.5 parts by weight of a vulcanizing agent, and 0.5 to 50 parts by weight of a vulcanization aid.
A method for producing an ultrasonic endoscope balloon using latex from 1.0 part by weight, vulcanization accelerator 0.4 to 1.0 part by weight, and antioxidant 0.5 to 1.0 part by weight. is there.
【００１２】天然ゴムラテックスは、シス−１，４−ポ
リイソプレンのラテックスである。本発明においては、
天然ゴムラテックス１００重量部（ゴム分）に対して加
硫剤１．０〜１．５重量部を使用する。加硫剤が１．０
重量部以下では、得られたバルーンは脱気水を入れて膨
脹させた後、脱気水を排除しても伸びた状態になり元の
状態に戻らなくなる。また、加硫剤が１．５重量部以上
ではバルーンが固くなり、所望の膨らみが得られ難くな
る。加硫剤としては硫黄が用いられる。The natural rubber latex is a latex of cis-1,4-polyisoprene. In the present invention,
1.0 to 1.5 parts by weight of a vulcanizing agent is used for 100 parts by weight of natural rubber latex (rubber content). 1.0 vulcanizing agent
When the weight is less than the weight part, the obtained balloon is inflated even after removing the degassed water after inflating the degassed water and cannot return to the original state. On the other hand, if the vulcanizing agent is 1.5 parts by weight or more, the balloon becomes hard, and it becomes difficult to obtain a desired swelling. Sulfur is used as a vulcanizing agent.
【００１３】加硫助剤としては、通常亜鉛華（酸化亜
鉛）が用いらる。これは加硫促進剤の作用を促進する。
加硫助剤は天然ゴムラッテクッス１００重量部（ゴム
分）に対して０．５〜１．０重量部を配合する。加硫助
剤が０．５以下では得られたバルーンは脱気水を入れて
膨脹させた後、脱気水を排除しても伸びた状態になり元
の状態に戻らなくなる。また加硫助剤が１．０重量部以
上ではバルーンが固くなり、所望の膨らみが得られ難く
なる。As the vulcanization aid, zinc white (zinc oxide) is usually used. This promotes the action of the vulcanization accelerator.
The vulcanization aid is added in an amount of 0.5 to 1.0 part by weight based on 100 parts by weight of natural rubber latex (rubber content). When the vulcanization aid is 0.5 or less, the obtained balloon is expanded by adding degassed water and then expanded, and cannot return to the original state even if the degassed water is removed. If the vulcanization aid is more than 1.0 part by weight, the balloon becomes hard, and it becomes difficult to obtain a desired swelling.
【００１４】加硫促進剤としてはチアゾ−ル類、チウラ
ム類、ジチオカルバメート類、グアニジン類、チオウレ
ア類等があげられる。本発明においてはジチオカルバメ
ート類の加硫促進剤が最も好ましい。そして、加硫促進
剤は天然ゴムラッテクス１００重量部（ゴム分）に対し
て０．４〜１．０重量部を使用する。また、本発明にお
いてはジチオカルバメート類の加硫促進剤を１種でもよ
いが、促進効果を異にする２種以上の加硫促進剤を併用
使用することが好ましい。老化防止剤としてはフェノー
ル系の老化防止剤が好ましい。老化防止剤は、天然ゴム
ラッテクス１００重量部（ゴム分）に対して０．５〜
１．０重量部を使用する。これらの配合剤は、予め配合
剤の天然ゴムと同じ分散媒である水に分散させた後、天
然ゴムラテックスに添加する。Examples of the vulcanization accelerator include thiazoles, thiurams, dithiocarbamates, guanidines, thioureas and the like. In the present invention, vulcanization accelerators of dithiocarbamates are most preferred. The vulcanization accelerator is used in an amount of 0.4 to 1.0 part by weight based on 100 parts by weight (rubber content) of natural rubber latex. In the present invention, one type of vulcanization accelerator of dithiocarbamates may be used, but it is preferable to use two or more types of vulcanization accelerators having different acceleration effects. As the antioxidant, a phenolic antioxidant is preferable. The anti-aging agent is used in an amount of 0.5 to 100 parts by weight (rubber content) of natural rubber latex.
Use 1.0 part by weight. These compounding agents are previously dispersed in water, which is the same dispersion medium as the natural rubber of the compounding agent, and then added to the natural rubber latex.
【００１５】[0015]
【実施例】以下、実施例をもって、更に具体的に本発明
を説明する。 実施例１．図１に示す金型を用いて超音波内視鏡用バル
ーンを成形した。この金型において、バルーン部成形部
１は、長さ１４ｍｍ、太さ１１ｍｍのほぼ楕円体であ
る。巻き上げ部成形部２は長さ１８．０ｍｍ、径６．５
ｍｍの円柱形にした。巻き上げ部成形部３は長さ１０．
５ｍｍ、径３．５ｍｍの円柱形にした。溝部分４は長さ
１ｍｍ、径６．０ｍｍにし、溝部分５は長さ０．５ｍ
ｍ、径３．０ｍｍにした。傾斜部６、７の長さは共に１
ｍｍにした。The present invention will be described more specifically with reference to the following examples. Embodiment 1 FIG. A balloon for an ultrasonic endoscope was formed using the mold shown in FIG. In this mold, the balloon part forming part 1 is a substantially elliptical body having a length of 14 mm and a thickness of 11 mm. The winding part forming part 2 has a length of 18.0 mm and a diameter of 6.5.
mm cylindrical shape. The winding portion forming portion 3 has a length of 10.
It was formed into a column having a diameter of 5 mm and a diameter of 3.5 mm. The groove 4 has a length of 1 mm and a diameter of 6.0 mm, and the groove 5 has a length of 0.5 m.
m, diameter 3.0 mm. The length of each of the inclined portions 6 and 7 is 1
mm.
【００１６】下記に示す配合割合のゴムラテックスを調
製した。天然ゴムラテックスに配合剤を添加、撹拌して
均一な配合ラテックスとした。 成 分 使用材料 重量部 天然ゴムラテックス シス−1,4−ポリイソプレン １００(ゴム分) 加硫剤 硫 黄 １．２ 加硫助剤 酸化亜鉛 ０．７ 加硫促進剤 ジ−ｎ−ブチルジチオカルバミン酸ナトリウム ０．５ 老化防止剤 ２，２’−メチレン−ビス〔６−α−メ チル−ベンジル）−ｐ−クレゾ−ル〕 ０．５A rubber latex having the following compounding ratio was prepared. The compounding agent was added to the natural rubber latex and stirred to obtain a uniform compounded latex. Ingredients Materials used parts by weight Natural rubber latex cis-1,4-polyisoprene 100 (rubber content) Vulcanizing agent Vulcanization Yellow 1.2 Vulcanization aid Zinc oxide 0.7 Vulcanization accelerator Di-n-butyldithiocarbamic acid Sodium 0.5 Anti-aging agent 2,2'-methylene-bis [6-α-methyl-benzyl) -p-cresol] 0.5
【００１７】金型を下側にして金型支持板を吊るし、金
型を上記組成のゴムラテックスに浸漬し、金型表面にゴ
ムラテックスを付着させ、ゴム皮膜を形成させた。次い
で引上げ、乾燥し、金型の巻き上げ部成形部に形成され
た皮膜を巻き上げた。その後、ゴム成形品を金型から離
型した。水洗し、９０℃で１時間加硫処理した。離型
後、ゴム成形品は収縮し、一端の口径が５．２ｍｍ、他
端の口径が２．４ｍｍの、均一な膨張性を有する超音波
内視鏡用バルーンが得られた。The mold support plate was hung with the mold facing downward, the mold was immersed in rubber latex having the above composition, and the rubber latex was adhered to the mold surface to form a rubber film. Next, the film was pulled up and dried, and the film formed on the formed portion of the winding portion of the mold was wound up. Thereafter, the rubber molded product was released from the mold. It was washed with water and vulcanized at 90 ° C. for 1 hour. After release from the mold, the rubber molded product was contracted, and a balloon for an ultrasonic endoscope having uniform inflatability having a diameter of one end of 5.2 mm and a diameter of the other end of 2.4 mm was obtained.
【００１８】[0018]
【発明の効果】以上述べたように、本発明によると、均
一に膨らますことができる超音波内視鏡用バルーンを製
造することができる。As described above, according to the present invention, a balloon for an ultrasonic endoscope which can be inflated uniformly can be manufactured.
【図１】本発明の超音波内視鏡バル−ン成形用金型の正
面図FIG. 1 is a front view of an ultrasonic endoscope balloon molding mold according to the present invention.
【図２】本発明の超音波内視鏡バル−ンの斜視図FIG. 2 is a perspective view of an ultrasonic endoscope balloon according to the present invention.
１ バルーン部成形部、２、３ 巻き上げ部成形部、
４、５ 溝部、６、７ 傾斜部、８ 支持棒、９ ネジ
部、１０、１１ バルーン部成形部両端、２０ 超音波
内視鏡用バルーン、２１ バルーン部、２２、２３ 巻
き上げ部、２４、２５ バルーン開口部1 balloon part forming part, 2, 3 winding part forming part,
4, 5 groove part, 6, 7 inclined part, 8 support rod, 9 screw part, 10, 11 balloon part forming part both ends, 20 ultrasonic endoscope balloon, 21 balloon part, 22, 23 winding part, 24, 25 Balloon opening
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ２９Ｄ 31/00 Ｂ２９Ｄ 31/00 // Ｂ２９Ｋ 21:00 Ｂ２９Ｌ 22:00 (58)調査した分野(Int.Cl.6，ＤＢ名) B29C 41/40 A61B 1/00 A61B 8/12 A61M 25/00 B29C 41/14 B29D 31/00 ──────────────────────────────────────────────────続 き Continuation of front page (51) Int.Cl. 6 identification symbol FI B29D 31/00 B29D 31/00 // B29K 21:00 B29L 22:00 (58) Fields surveyed (Int.Cl. 6 , DB Name) B29C 41/40 A61B 1/00 A61B 8/12 A61M 25/00 B29C 41/14 B29D 31/00
Claims (3)
方向両端に連なる円柱状の巻き上げ部成形部とを有し、
バルーン部成形部と巻き上げ部成形部との間に巻き上げ
部成形部の径より小さい径の溝部分を設けたことを特徴
とする超音波内視鏡用バルーン成形金型。1. An apparatus according to claim 1, further comprising: a substantially elliptical balloon portion forming portion; and a cylindrical roll-up portion forming portion connected to both longitudinal ends thereof.
A balloon molding die for an ultrasonic endoscope, wherein a groove portion having a diameter smaller than the diameter of the winding portion forming portion is provided between the balloon portion forming portion and the winding portion forming portion.
形金型をゴムラテックスに浸漬し、引き上げて、該金型
表面にゴム皮膜を形成させ、次いで各巻き上げ部に形成
されたゴム皮膜をバルーン部成形部の両端部まで巻上
げ、その後該金型からゴム皮膜を離型することを特徴と
する超音波内視鏡用バルーンの製造方法。2. A rubber molding die for an ultrasonic endoscope according to claim 1, which is immersed in rubber latex, pulled up to form a rubber film on the surface of the die, and then a rubber formed on each winding portion. A method for producing a balloon for an ultrasonic endoscope, comprising: winding up a film to both ends of a balloon portion forming portion; and releasing the rubber film from the mold.
００重量部（ゴム固形分）、加硫剤１．０〜１．５重量
部、加硫助剤０．５〜１．０重量部、加硫促進剤０．４
〜１．０重量部、老化防止剤０．５〜１．０重量部から
なることを特徴とする請求項２記載の超音波内視鏡用バ
ルーンの製造方法。3. The rubber latex is natural rubber latex 1.
00 parts by weight (solid rubber content), 1.0 to 1.5 parts by weight of a vulcanizing agent, 0.5 to 1.0 parts by weight of a vulcanization aid, 0.4 of a vulcanization accelerator
The method for producing a balloon for an ultrasonic endoscope according to claim 2, comprising from 1.0 to 1.0 part by weight and from 0.5 to 1.0 part by weight of an antioxidant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6256932A JP2990572B2 (en) | 1994-10-21 | 1994-10-21 | Manufacturing method of balloon for ultrasonic endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6256932A JP2990572B2 (en) | 1994-10-21 | 1994-10-21 | Manufacturing method of balloon for ultrasonic endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08118377A JPH08118377A (en) | 1996-05-14 |
| JP2990572B2 true JP2990572B2 (en) | 1999-12-13 |
Family
ID=17299377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6256932A Expired - Fee Related JP2990572B2 (en) | 1994-10-21 | 1994-10-21 | Manufacturing method of balloon for ultrasonic endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2990572B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723484B (en) * | 2013-12-20 | 2017-02-08 | 深圳先进技术研究院 | 360-degree ultrasonic endoscope molding device |
| JP7170599B2 (en) * | 2019-08-09 | 2022-11-14 | 富士フイルム株式会社 | Endoscope device and balloon |
| CN115671401A (en) * | 2022-10-31 | 2023-02-03 | 深圳市慧极创新医疗科技有限公司 | Medical latex balloon |
-
1994
- 1994-10-21 JP JP6256932A patent/JP2990572B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08118377A (en) | 1996-05-14 |
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