JP2016096901A - Transducer protector, and extracorporeal circulation circuit - Google Patents
Transducer protector, and extracorporeal circulation circuit Download PDFInfo
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Abstract
Description
本発明は、人工透析、血漿交換、腹水処理、血液浄化の際に使用される体外循環回路と透析装置等の圧力計（圧力調整器）との間に配置されるトランスデューサープロテクタの改良に関する。 The present invention relates to an improvement in a transducer protector disposed between an extracorporeal circuit used for artificial dialysis, plasma exchange, ascites treatment, blood purification, and a pressure gauge (pressure regulator) such as a dialysis machine.
出願人は、特許文献１（以下、特許文献１に記載の発明の各部材をわかりやすく説明するために、符号を記載した。特許文献１の符号は、本願発明の符号と区別するために、〈 〉をつけた。）に、第一ハウジング〈２〉と第二ハウジング〈２２〉との間に、フィルタ〈Ｆ〉を固定する際に、フィルタ〈Ｆ〉かかる負荷を軽減し、フィルタ〈Ｆ〉の品質（性能）を安定化することができるトランスデューサープロテクタ〈１〉の発明を開示した。
第一ハウジング〈２〉と第二ハウジング〈２２〉は、それぞれ略円筒状の第一支持部〈４〉と第二支持部〈２４〉並びに管状の第一接続部〈３〉と第二接続部〈２３〉とを有している。
第一支持部〈４〉は、中心Ｏから円周側部Ｒ方向に向けて、順次、第一挟持部〈５〉、第一溶着部〈９〉、凹部〈Ｍ〉を形成している。
第二支持部〈２４〉は、中心Ｏから円周側部Ｒ方向に向けて、順次、第二挟持部〈２５〉、第二溶着部〈２９〉、凸部〈Ｔ〉を形成している。
The applicant described Patent Document 1 (hereinafter, in order to explain each member of the invention described in Patent Document 1 in an easy-to-understand manner. The reference in Patent Document 1 is distinguished from the code of the present invention. When <<> is attached between the first housing <2> and the second housing <22>, the load applied to the filter <F> is reduced when the filter <F> is fixed. The invention of the transducer protector <1> that can stabilize the quality (performance) of
The first housing <2> and the second housing <22> have a substantially cylindrical first support portion <4> and a second support portion <24>, and a tubular first connection portion <3> and a second connection portion, respectively. <23>.
The first support portion <4> sequentially forms a first sandwiching portion <5>, a first welded portion <9>, and a concave portion <M> from the center O toward the circumferential side portion R direction.
The second support portion <24> sequentially forms a second sandwiching portion <25>, a second welded portion <29>, and a convex portion <T> from the center O toward the circumferential side portion R direction. .
トランスデューサープロテクタ〈１〉の組み立ては、第二ハウジング〈２２〉（または第一ハウジング〈２〉を固定冶具に固定し、第一ハウジング〈２〉（または第二ハウジング〈２２〉）を超音波ホーンにより加圧しながら水平方向の超音波振動を付与しながら溶着していた。
すなわち、第一ハウジング〈２〉の第一支持部〈４〉と第二ハウジング〈２２〉の第二支持部〈２４〉を溶着する際に、フィルタ〈Ｆ〉は第一支持部〈４〉の第一挟持部〈５〉と、第二支持部〈２４〉の第二挟持部〈２５〉との間に配置する。
そして、第一支持部〈４〉の第一溶着部〈９〉（第一段部〈Ｄ１〉及び凹部〈Ｍ〉）と、第二支持部〈２４〉の第二溶着部〈２９〉（第二段部〈Ｄ２〉及び凸部〈Ｔ〉）とを溶着し、フィルタ〈Ｆ〉の外縁を、第一挟持部〈５〉と第二挟持部〈２５〉との間に固定していた。
ところが第一ハウジング〈２〉の支持部〈４〉と第二ハウジング〈２２〉の第二支持部〈２４〉は、実質的に同じ外径に形成し、さらに溶着する箇所の面積が大きいため、第一ハウジング〈２〉の支持部〈４〉（または第二ハウジング〈２２〉の第二支持部〈２４〉）の溶着箇所に、超音波ホーンの振動を集中しきれず、このため溶着箇所の溶着強度にバラツキが生じ、溶着が均一にできず、液体リークの発生が報告されることがあった。
The transducer protector <1> is assembled by fixing the second housing <22> (or the first housing <2> to a fixing jig and the first housing <2> (or the second housing <22>) to an ultrasonic horn. Welding was carried out while applying horizontal ultrasonic vibration while applying pressure.
That is, when welding the first support portion <4> of the first housing <2> and the second support portion <24> of the second housing <22>, the filter <F> It arrange | positions between 1st clamping part <5> and 2nd clamping part <25> of 2nd support part <24>.
And the 1st welding part <9> (1st step part <D1> and recessed part <M>) of 1st support part <4>, and the 2nd welding part <29> (2nd of 2nd support part <24>). The two-stage part <D2> and the convex part <T>) were welded, and the outer edge of the filter <F> was fixed between the first clamping part <5> and the second clamping part <25>.
However, since the support portion <4> of the first housing <2> and the second support portion <24> of the second housing <22> are formed to have substantially the same outer diameter, and the area of the welded portion is large, The vibration of the ultrasonic horn cannot be concentrated at the welding location of the support portion <4> of the first housing <2> (or the second support portion <24> of the second housing <22>). In some cases, the strength varies, the welding cannot be made uniform, and the occurrence of liquid leak is reported.
そこで本発明者は、以上の課題を解決するために、鋭意検討を重ねた結果、次の発明に到達した。 Therefore, the present inventor has intensively studied in order to solve the above problems, and as a result, has reached the following invention.
［１］本発明は、第一ハウジング（２）と、第二ハウジング（２２）とを有し、
前記第一ハウジング（２）と前記第二ハウジング（２２）は、それぞれ略円筒状の第一支持部（４）と第二支持部（２４）及び管状の第一接続部（３）と第二接続部（２３）とを有し、
前記第一支持部（４）と前記第二支持部（２４）は、長手（Ｌ）方向と、当該長手方向と略垂直に交わる側部円周（Ｒ）方向とを有し、前記長手（Ｌ）方向は、天面（Ｕ）と底面（Ｄ）とを有し、
前記第一支持部（４）と前記第二支持部（２４）の底面（Ｄ）に、それぞれ前記第一接続部（３）と前記第二接続部（２３）を突設し、
前記第一支持部４の外径（４ＯＤ）は、前記第二支持部２４の外径（２４ＯＤ）よりも小さく形成し、前記第二支持部２４の外径（２４ＯＤ）の大きさを、１００とすると、前記第一支持部（４）の外径：（４ＯＤ）は、６５〜８５に形成し、
前記第一ハウジング（２）の第一支持部（４）の天面（Ｕ）に、
中心（Ｏ）方向から側部円周（Ｒ）方向に向けて、順次、第一挟持部（５）、第一溶着部（９）を形成し、当該第一溶着部（９）は第一段部（Ｄ１）を有し、
前記第一挟持部（５）は第一階段部（Ｋ１）を有し、
前記第二ハウジング（２２）の第二支持部（２４）の天面（Ｕ）に、中心（Ｏ）方向から側部円周（Ｒ）方向に向けて、順次、環状の第二挟持部（２５）、第二段部（Ｄ２）を形成し、当該第二段部（Ｄ２）は第二溶着部（２９）を有し、
前記第二挟持部（２５）は、第二階段部（Ｋ２）を有し、
フィルタ（Ｆ）を、前記第一支持部（４）と前記第二支持部（２４）との間に配置し、
前記フィルタ（Ｆ）の外周縁部を、前記第一挟持部（５）の第一階段部（Ｋ１）と、前記第二挟持部（２５）の第二階段部（Ｋ２）との間に配置し、超音波により、
前記第一溶着部（９）の第一段部（Ｄ１）の角部（Ｄ１Ｒ）と前記第二溶着部（２９）を溶融することにより、当該第二溶着部（２９）と前記角部（Ｄ１Ｒ）とを溶着し、
前記フィルター（Ｆ）の外周縁部を、前記第一階段部（Ｋ１）と前記第二階段部（Ｋ２）との間で挟持固定したトランスデューサープロテクタ（１）を提供する。
［２］本発明は、第二段部（Ｄ２）は、中心（Ｏ）から円周側部（Ｒ）方向に向けて、複数の段部（Ｄ２１、Ｄ２２、Ｄ２３、Ｄ２４）を有し、円周側部（Ｒ）方向の段部（２３）が、第二溶着部（２９）として機能する［１］に記載のトランスデューサープロテクタ（１）を提供する。
［３］本発明は、第一ハウジング（２）は、第一溶着部（９）の側部円周（Ｒ）方向に凹部（Ｍ）を形成し、
第二ハウジング（２２）は、第二段部（Ｄ２）の側部円周（Ｒ）方向に、順次、凸部（Ｔ）、フランジ（ＦＲ）を形成し、
前記第二ハウジング（２２）は、第二支持部（２４）の底面（Ｄ）に溝（ＭＤ）を形成した［１］または［２］に記載のトランスデューサープロテクタ（１）を提供する。
[1] The present invention includes a first housing (2) and a second housing (22),
The first housing (2) and the second housing (22) have a substantially cylindrical first support part (4) and a second support part (24), and a tubular first connection part (3) and a second one, respectively. A connecting portion (23),
The first support portion (4) and the second support portion (24) have a longitudinal (L) direction and a side circumferential (R) direction that intersects the longitudinal direction substantially perpendicularly. L) direction has a top surface (U) and a bottom surface (D),
The first connection part (3) and the second connection part (23) are respectively projected from the bottom surface (D) of the first support part (4) and the second support part (24),
The outer diameter (4OD) of the first support part 4 is formed smaller than the outer diameter (24OD) of the second support part 24, and the outer diameter (24OD) of the second support part 24 is set to 100. Then, the outer diameter of the first support part (4): (4OD) is formed in 65-85,
On the top surface (U) of the first support portion (4) of the first housing (2),
A first clamping part (5) and a first welding part (9) are sequentially formed from the center (O) direction to the side circumferential (R) direction, and the first welding part (9) Having a step (D1),
The first clamping part (5) has a first step part (K1),
On the top surface (U) of the second support portion (24) of the second housing (22), an annular second clamping portion (in order from the center (O) direction toward the side circumferential (R) direction) 25), forming a second step portion (D2), the second step portion (D2) has a second welded portion (29),
Said 2nd clamping part (25) has a 2nd step part (K2),
The filter (F) is disposed between the first support part (4) and the second support part (24),
The outer peripheral edge portion of the filter (F) is disposed between the first stepped portion (K1) of the first holding portion (5) and the second stepped portion (K2) of the second holding portion (25). And by ultrasound
By melting the corner (D1R) of the first step portion (D1) and the second welded portion (29) of the first welded portion (9), the second welded portion (29) and the corner portion ( D1R)
A transducer protector (1) is provided in which the outer peripheral edge of the filter (F) is clamped and fixed between the first step (K1) and the second step (K2).
[2] In the present invention, the second step portion (D2) has a plurality of step portions (D21, D22, D23, D24) from the center (O) toward the circumferential side portion (R). The step (23) in the circumferential side (R) direction provides the transducer protector (1) according to [1], which functions as the second welded portion (29).
[3] In the present invention, the first housing (2) forms a recess (M) in the side circumference (R) direction of the first welded portion (9),
The second housing (22) sequentially forms a convex portion (T) and a flange (FR) in the side circumferential (R) direction of the second step portion (D2),
Said 2nd housing (22) provides the transducer protector (1) as described in [1] or [2] which formed the groove | channel (MD) in the bottom face (D) of the 2nd support part (24).
［４］本発明は、底面（Ｄ）の溝（ＭＤ）は、中心（Ｏ）方向から側部円周（Ｒ）方向に向けて、第二段部（Ｄ２）に対応する箇所から凸部（Ｔ）に対応する箇所を経て、フランジ（ＦＲ）の最も内側に対応する箇所に至るまで形成した［１］から［３］のいずれか１つに記載のトランスデューサープロテクタ（１）を提供する。
［５］本発明は、第二ハウジング（２２）の中心（Ｏ）から第二支持部（２４）の最外側部までの距離（２４ＯＤ）を１００とすると、
中心（Ｏ）から第二挟持部（２４）までの距離（２５ＯＤ）は、４０〜６０、
中心（Ｏ）から第二段部（Ｄ２）までの距離（Ｄ２ＯＤ）は、５０〜７０、
に形成した［１］から［４］のいずれか１つに記載のトランスデューサープロテクタ（１）を提供する。
［６］本発明は、第一ハウジング（２）の第一支持部（４）の天面（Ｕ）を高い位置としてみた場合、第一階段部（Ｋ１）は、中心（Ｏ）方向から側部円周（Ｒ）方向に向けて、高くなるように形成し、
第一段部（Ｄ１）は、第一階段部（Ｋ１）の最も低い部分よりも低い位置に形成した［１］から［５］のいずれか１つに記載のトランスデューサープロテクタ（１）を提供する。
［７］本発明は、天面部方向（Ｕ）を高い位置としてみた場合、第二階段部（Ｋ２）は、中心（Ｏ）方向から側部円周（Ｒ）方向に向けて、低くなるように形成し、
第二段部（Ｄ２）は、前記第二階段部（Ｋ２）の最も高い部分よりも高い位置に形成した［１］から［６］のいずれか１つに記載のトランスデューサープロテクタ（１）を提供する。
［８］本発明は、［１］から［７］のいずれか１つに記載のトランスデューサープロテクタ（１）を装着した体外循環回路を提供する。
[4] In the present invention, the groove (MD) of the bottom surface (D) has a convex portion from a position corresponding to the second step portion (D2) from the center (O) direction toward the side circumferential (R) direction. The transducer protector (1) according to any one of [1] to [3], which is formed from a position corresponding to (T) to a position corresponding to the innermost side of the flange (FR). .
[5] In the present invention, when the distance (24 OD) from the center (O) of the second housing (22) to the outermost part of the second support portion (24) is 100,
The distance (25 OD) from the center (O) to the second clamping part (24) is 40-60,
The distance (D2OD) from the center (O) to the second step (D2) is 50 to 70,
A transducer protector (1) according to any one of [1] to [4] is provided.
[6] In the present invention, when the top surface (U) of the first support portion (4) of the first housing (2) is viewed at a high position, the first stepped portion (K1) is on the side from the center (O) direction. It is formed to be higher toward the part circumference (R) direction,
The first step portion (D1) provides the transducer protector (1) according to any one of [1] to [5], which is formed at a position lower than the lowest portion of the first step portion (K1). To do.
[7] In the present invention, when the top surface direction (U) is regarded as a high position, the second stepped portion (K2) is lowered from the center (O) direction toward the side circumferential (R) direction. Formed into
The second step portion (D2) includes the transducer protector (1) according to any one of [1] to [6] formed at a position higher than the highest portion of the second step portion (K2). provide.
[8] The present invention provides an extracorporeal circuit equipped with the transducer protector (1) according to any one of [1] to [7].
本発明のトランスデューサープロテクタ１は、第一支持部４の外径：４ＯＤは、第二支持部２４の外径：２４ＯＤよりも小さく形成し、第一ハウジング２と第二ハウジング２２の支持部材４、２４の溶着箇所を、支持部材４の第一段部Ｄ１の一部（角部Ｄ１Ｃ）と、支持部材２４の第二段部Ｄ２の一部（段部Ｄ２３）に限定している。
これにより第二支持部２４は、固定治具ＫＴに安定して固定でき、かつ第一ハウジング２、第二ハウジング２２の支持部材４、２４の前記溶着箇所に、超音波ホーンＨの振動を、接合前の第二溶着部２９に集中できる。このため従来のように、液体リークが発生することがなく、安定して溶着することができる。
In the transducer protector 1 of the present invention, the outer diameter: 4OD of the first support portion 4 is formed smaller than the outer diameter: 24OD of the second support portion 24, and the support members 4 of the first housing 2 and the second housing 22 are formed. , 24 are limited to a part (corner part D1C) of the first step part D1 of the support member 4 and a part (step part D23) of the second step part D2 of the support member 24.
Thereby, the second support portion 24 can be stably fixed to the fixing jig KT, and vibration of the ultrasonic horn H is applied to the welded portions of the support members 4 and 24 of the first housing 2 and the second housing 22. It can concentrate on the 2nd welding part 29 before joining. Therefore, unlike the conventional case, liquid leakage does not occur and stable welding can be performed.
以下、図面を参照しながら本発明を詳細に説明する。
以下、本発明を明確に説明するため、次の定義をおく。
（定義１）本発明のトランスデューサープロテクタ１において、「長手Ｌ方向」とは、長尺方向（長い方向）を意味する。
「天面Ｕ」とは、第一ハウジング２は、例えば図３、図６に示すように、第一支持部４の第一接続部３との反対側の端部を意味する。第二ハウジング２２は、例えば図９、図１２に示すように、第二支持部２４の第二接続部２３との反対側の端部を意味する。また「天面Ｕ」は、天面Ｕ側、天面Ｕ方向、上部Ｕ、上部Ｕ側、上部Ｕ方向という場合がある。
「底面Ｄ」とは、第一ハウジング２は、例えば図３、図６に示すように、第一接続部３の第一支持部４との反対側の端部を意味する。第二ハウジング２２は、例えば図９、図１２に示すように、第二接続部２３の第二支持部２４との反対側の端部を意味する。また「底面Ｄ」は、底面Ｄ側、底面Ｄ方向、下部Ｄ、下部Ｄ側、下部Ｄ方向という場合がある。
なお図１、図２、図１５、図１６（第一ハウジング２と第二ハウジング２２の接合前後の断面図）では、図面の上方向を天面Ｕ、下方向を底面Ｄとして記載している。第一ハウジング２は、天面Ｕと底面Ｄが反転している。
「側部円周Ｒ方向」とは、例えば図３、図６（図９、図１２）に示すように、長手Ｌ方向の中心Ｏから外周（外側）へ向かう方向を意味する。
Hereinafter, the present invention will be described in detail with reference to the drawings.
Hereinafter, in order to clearly describe the present invention, the following definitions are provided.
(Definition 1) In the transducer protector 1 of the present invention, the “longitudinal L direction” means the long direction (long direction).
The “top surface U” means that the first housing 2 is an end portion of the first support portion 4 opposite to the first connection portion 3 as shown in FIGS. 3 and 6, for example. For example, as shown in FIGS. 9 and 12, the second housing 22 means an end portion of the second support portion 24 opposite to the second connection portion 23. The “top surface U” may be referred to as the top surface U side, the top surface U direction, the upper portion U, the upper portion U side, or the upper portion U direction.
The “bottom surface D” means that the first housing 2 is an end portion of the first connection portion 3 opposite to the first support portion 4 as shown in FIGS. 3 and 6, for example. For example, as shown in FIGS. 9 and 12, the second housing 22 means an end portion of the second connection portion 23 opposite to the second support portion 24. The “bottom D” may be referred to as a bottom D side, a bottom D direction, a lower D, a lower D side, or a lower D direction.
1, 2, 15, and 16 (cross-sectional views before and after joining the first housing 2 and the second housing 22), the upper direction of the drawing is described as the top surface U and the lower direction is described as the bottom surface D. . In the first housing 2, the top surface U and the bottom surface D are inverted.
The “side circumference R direction” means a direction from the center O in the longitudinal L direction toward the outer circumference (outer side) as shown in FIGS. 3 and 6 (FIGS. 9 and 12).
本発明のトランスデューサープロテクタ１は、透析装置側の第一ハウジング２と体外循環回路側の第二ハウジング２２との間にフィルターＦを配置したトランスデューサープロテクタ１である。
第一ハウジング２は、略円筒状の第一支持部４と略管状の第一接続部３とを有する。
第二ハウジング２２は、略円筒状の第二支持部２４と略管状の第二接続部２３とを有する。
第一支持部４と第二支持部２４は、長手Ｌ方向と、当該長手Ｌ方向と略垂直に交わる側部円周Ｒ方向とを有し、前記長手Ｌ方向は、天面Ｕと底面Ｄとを有する。
第一接続部３と第二接続部２３は、長手Ｌ方向と、当該長手Ｌ方向と略垂直に交わる側部円周Ｒ方向とを有し、前記長手Ｌ方向は、天面Ｕと底面Ｄとを有する。
The transducer protector 1 of the present invention is a transducer protector 1 in which a filter F is disposed between a first housing 2 on the dialyzer side and a second housing 22 on the extracorporeal circuit side.
The first housing 2 has a substantially cylindrical first support portion 4 and a substantially tubular first connection portion 3.
The second housing 22 has a substantially cylindrical second support portion 24 and a substantially tubular second connection portion 23.
The first support portion 4 and the second support portion 24 have a longitudinal L direction and a side circumference R direction that intersects the longitudinal L direction substantially perpendicularly, and the longitudinal L direction includes a top surface U and a bottom surface D. And have.
The first connection portion 3 and the second connection portion 23 have a longitudinal L direction and a side circumferential R direction that intersects the longitudinal L direction substantially perpendicularly, and the longitudinal L direction includes a top surface U and a bottom surface D. And have.
図１に例示するように、第一支持部４の外径：４ＯＤは、第二支持部２４の外径：２４ＯＤよりも小さく形成している。
すなわち第二支持部２４の外径：２４ＯＤの大きさ（寸法、サイズ）を、例えば１００とすると、第一支持部４の外径：４ＯＤは、６５〜８５、好ましくは７０〜８０に形成している。外径：４ＯＤがあまり大きい（８５を超える）と溶着部を溶融しずらくなり、また超音波ホーンで挟み込む（挟持する）エネルギーが大となり、挟み込むのが困難となる。あまり小さい（６５未満）と溶着部の溶融量（体積）が少ないので、下部Ｄ側に応力をかけすぎることになり、フィルターＦの破損の原因となる。
As illustrated in FIG. 1, the outer diameter: 4OD of the first support portion 4 is smaller than the outer diameter: 24OD of the second support portion 24.
That is, if the size (dimension, size) of the outer diameter of the second support portion 24: 24OD is, for example, 100, the outer diameter: 4OD of the first support portion 4 is set to 65 to 85, preferably 70 to 80. ing. Outer diameter: If 4OD is too large (over 85), it becomes difficult to melt the welded portion, and the energy to be sandwiched (sandwiched) by the ultrasonic horn becomes large, making it difficult to sandwich. If it is too small (less than 65), the melted amount (volume) of the welded portion is small, so that too much stress is applied to the lower portion D side, causing the filter F to be damaged.
図１、図７、図８、図１３、図１４に例示するように、第一ハウジング２の第一支持部４の天面Ｕと第二ハウジング２２の第二支持部２４の天面Ｕのそれぞれの対向する位置に、フィルターＦの第一挟持部５と第二挟持部２５を形成（突設）している。
当該第一挟持部５と第二挟持部２５の外周（側部円周Ｒ方向）に、第一溶着部９と第二溶着部２９を形成している。
さらに第一挟持部５は第一階段部Ｋ１を有し、第一階段部Ｋ１は複数の階段部Ｋ１１、Ｋ１２、Ｋ１３を有する。
第二挟持部２５は第二階段部Ｋ２を有し、第二階段部Ｋ２は複数の階段部Ｋ２１、Ｋ２２を有する。階段部Ｋ２２の外周（側部円周Ｒ方向）に、溝部２５Ｍを形成している。
これらの第一階段部Ｋ１と第二階段部Ｋ２により構成される複数の凹凸（階段部、溝部）によりフィルターＦの外周縁部を挟持するものである。
本発明の説明では、便宜上、第一ハウジング２を透析装置側、第二ハウジング２２を体外循環回路と記載したが、第一ハウジング２を体外循環回路側、第二ハウジング２２を透析装置側のハウジングとしても使用することができる。
As illustrated in FIGS. 1, 7, 8, 13, and 14, the top surface U of the first support portion 4 of the first housing 2 and the top surface U of the second support portion 24 of the second housing 22. The first sandwiching portion 5 and the second sandwiching portion 25 of the filter F are formed (projected) at the opposing positions.
A first welded portion 9 and a second welded portion 29 are formed on the outer periphery (side portion circumferential R direction) of the first sandwiched portion 5 and the second sandwiched portion 25.
Furthermore, the 1st clamping part 5 has the 1st step part K1, and the 1st step part K1 has the some step part K11, K12, K13.
The 2nd clamping part 25 has the 2nd staircase part K2, and the 2nd staircase part K2 has several staircase parts K21 and K22. A groove portion 25M is formed on the outer periphery (side portion circumferential R direction) of the stepped portion K22.
The outer peripheral edge of the filter F is sandwiched by a plurality of projections and depressions (steps, grooves) constituted by the first step K1 and the second step K2.
In the description of the present invention, for convenience, the first housing 2 is described as the dialyzer side and the second housing 22 is described as the extracorporeal circuit, but the first housing 2 is the extracorporeal circuit side and the second housing 22 is the housing on the dialyzer side. Can also be used.
第一ハウジング２は、図３、図６に例示するように、略管状の第一接続部３を略円筒状の第一支持部４の底面Ｄの略中央に一体に突設している。
第一接続部３は、内周は天面Ｕ方向に先細りのテーパーを形成している。底面Ｄ側の外周に、透析装置との接続部３Ｎ（ネジ部）を形成している。
第二ハウジング２は、図９、図１２に例示するように、略管状の第二接続部２３を略円筒状の第一支持部４の底面Ｄの略中央に一体に突設している。
第二接続部２３は、内周は天面Ｕ方向に先細りのテーパーを形成している。
第二ハウジング２２は、第二支持部材２４の長手Ｌ方向に、複数の間隔の狭い凹凸２４Ｔを形成している。さらに円周側部Ｒ方向に、凹凸２４Ｔを横断するように環状の溝部２４Ｍを形成している。
これらの凹凸２４Ｔ、溝部２４Ｍにより、作業者は指を引っかけて、取扱いをスムーズに行うことができる。
As illustrated in FIGS. 3 and 6, the first housing 2 has a substantially tubular first connecting portion 3 integrally projecting from the substantially center of the bottom surface D of the substantially cylindrical first support portion 4.
As for the 1st connection part 3, the inner periphery forms the taper taper in the top | upper surface U direction. A connecting portion 3N (screw portion) with the dialysis machine is formed on the outer periphery on the bottom surface D side.
As illustrated in FIGS. 9 and 12, the second housing 2 has a substantially tubular second connection portion 23 integrally projecting from the bottom surface D of the substantially cylindrical first support portion 4.
As for the 2nd connection part 23, the inner periphery forms the taper taper in the top | upper surface U direction.
The second housing 22 has a plurality of narrow irregularities 24 </ b> T in the longitudinal direction L of the second support member 24. Further, an annular groove 24M is formed in the circumferential side portion R direction so as to cross the unevenness 24T.
The unevenness 24T and the groove portion 24M allow the operator to hook the finger and handle it smoothly.
第一接続部３は底面Ｄ側から第一支持部４の内部に亘って、流体（空気、血液等）の第一流路６を形成し、同様に第二接続部２３は底面Ｄ側から第二支持部２４の内部に亘って、流体（空気、血液等）の第二流路２６を形成している。
第一支持部４は、天面Ｕ略中央に、第一凹部１０を形成し、当該第一凹部１０の空間内に空気圧緩衝部材８を配置（形成、突設）している。
同様に第二支持部２４は、天面Ｕ略中央に、第二凹部３０を形成し、当該第二凹部３０の空間内に空気圧緩衝部材２８を配置（形成、突設）している。
The first connection portion 3 forms a first flow path 6 for fluid (air, blood, etc.) from the bottom surface D side to the inside of the first support portion 4, and similarly, the second connection portion 23 is formed from the bottom surface D side. A second flow path 26 for fluid (air, blood, etc.) is formed over the inside of the two support portions 24.
The first support portion 4 is formed with a first recess 10 approximately in the center of the top surface U, and a pneumatic cushioning member 8 is disposed (formed, protruded) in the space of the first recess 10.
Similarly, the second support portion 24 has a second concave portion 30 formed substantially at the center of the top surface U, and a pneumatic cushioning member 28 is disposed (formed, protruded) in the space of the second concave portion 30.
［第一ハウジング２、第一挟持部５、第一溶着部９］
図３、図６から図８に示すように、第一ハウジング２の第一支持部４の天面Ｕに、中心Ｏ方向から側部円周Ｒ方向に向けて、順次、環状の第一挟持部５、第一溶着部９及び凹部Ｍを形成している。
さらに第一挟持部５は、第一階段部Ｋ１を有し、さらに詳述すれば、第一階段部Ｋ１は、図７、図８に例示するように中心Ｏ方向から側部円周Ｒ方向に向けて、
三つの階段部Ｋ１１、Ｋ１２、Ｋ１３を有する。
[First housing 2, first clamping part 5, first welding part 9]
As shown in FIG. 3 and FIG. 6 to FIG. 8, an annular first sandwich is sequentially formed on the top surface U of the first support portion 4 of the first housing 2 from the center O direction toward the side circumferential R direction. The part 5, the 1st welding part 9, and the recessed part M are formed.
Furthermore, the 1st clamping part 5 has the 1st step part K1, and if it explains in full detail, the 1st step part K1 will be side circumference R direction from the center O direction so that it may illustrate in FIG. 7, FIG. Towards
It has three steps K11, K12, K13.
天面Ｕ方向を高い位置としてみた場合、第一階段部Ｋ１は、図７、図８に例示するように、中心Ｏ方向から側部円周Ｒ方向に向けて、Ｋ１１、Ｋ１２、Ｋ１３の順に高くなるように形成している。
第一溶着部９は、図７、図８に例示するように、第一段部Ｄ１である。第一段部Ｄ１は、外周（側部円周Ｒ方向）に、角部（コーナー部ともいう）Ｄ１Ｒを有する。角部Ｄ１Ｒが、実質的に溶着部として機能する。
第一段部Ｄ１の外周（側部円周Ｒ方向）に向けて、凹部Ｍを形成している。
天面Ｕ方向を高い位置としてみた場合、第一段部Ｄ１は、図７、図８に例示するように第一階段部Ｋ１の最も低い階段部Ｋ１１よりも低い位置に形成している。
When the top surface U direction is viewed as a high position, the first staircase portion K1 is in the order of K11, K12, and K13 from the center O direction toward the side circumference R direction as illustrated in FIGS. It is formed to be higher.
The 1st welding part 9 is the 1st step part D1, as illustrated in FIG. 7, FIG. The first step portion D1 has a corner portion (also referred to as a corner portion) D1R on the outer periphery (side portion circumferential R direction). The corner portion D1R substantially functions as a welded portion.
A concave portion M is formed toward the outer periphery (side portion circumferential R direction) of the first step portion D1.
When the top surface U direction is viewed as a high position, the first step portion D1 is formed at a position lower than the lowest step portion K11 of the first step portion K1, as illustrated in FIGS.
［第二ハウジング２２、第二支持部２４、第一溶着部２９］
図９、図１２から図１４に示すように、第二ハウジング２２の第二支持部２４の天面Ｕ部に、中心Ｏ方向から側部円周Ｒ方向に向けて、順次、環状の第二挟持部２５、第二段部Ｄ２（第二溶着部２９を含む）、凸部Ｔ及びフランジＦＲを形成している。
第二挟持部２５は、第二階段部Ｋ２を有し、第二階段部Ｋ２は、図１３、図１４に例示するように、中心Ｏ方向から側部円周Ｒ方向に向けて、二つの階段部Ｋ２１、Ｋ２２を有する。
天面Ｕ方向を高い位置としてみた場合、第二階段部Ｋ２は、図１３、図１４に例示するように、中心Ｏ方向（内側）の階段部Ｋ２１は、側部円周Ｒ方向（外側）の階段部Ｋ２２よりも高く形成している。
階段部Ｋ２２の外周（側部円周Ｒ方向）に、溝部２５Ｍを形成している。
[Second housing 22, second support portion 24, first welded portion 29]
As shown in FIG. 9 and FIG. 12 to FIG. 14, an annular second is sequentially formed on the top U portion of the second support portion 24 of the second housing 22 from the center O direction toward the side circumferential R direction. The clamping part 25, the 2nd step part D2 (including the 2nd welding part 29), the convex part T, and the flange FR are formed.
The second clamping part 25 has a second staircase part K2, and the second staircase part K2, as illustrated in FIG. 13 and FIG. 14, has two directions from the center O direction toward the side circumference R direction. Steps K21 and K22 are provided.
When the top surface U direction is viewed as a high position, the second stepped portion K2 has the center O direction (inner side) stepped portion K21 as shown in FIGS. 13 and 14, and the side circumferential direction R direction (outside). It is formed higher than the step part K22.
A groove portion 25M is formed on the outer periphery (side portion circumferential R direction) of the stepped portion K22.
第二段部Ｄ２は、中心Ｏ方向から側部円周Ｒ方向に向けて、四つの段部、Ｄ２１、Ｄ２２、Ｄ２３、Ｄ２４を有する。
天面Ｕ方向を高い位置としてみた場合、第二段部Ｄ２は、中心Ｏ方向から側部円周Ｒ方向に向けて、内側の段部Ｄ２１から外側の段部Ｄ２４に向けて、順次高くなるように形成している。
内側から数えて、三番目の段部Ｄ２３は、中心Ｏ方向から側部円周Ｒ方向に向けて昇るテーパー（あえて符号は記載せず）を有する。
その他の段部Ｄ２１、２２、２４は、中心Ｏ方向から側部円周Ｒ方向に向けて昇る小テーパー（あえて符号は記載せず）を有する。
The second step portion D2 has four step portions D21, D22, D23, and D24 from the center O direction toward the side circumferential R direction.
When the top surface U direction is regarded as a high position, the second step portion D2 becomes higher sequentially from the center O direction toward the side circumferential R direction and from the inner step portion D21 toward the outer step portion D24. It is formed as follows.
Counting from the inside, the third step portion D23 has a taper (not shown) that rises from the center O direction toward the side circumference R direction.
The other step portions D21, 22, and 24 have a small taper (not shown) that rises from the center O direction toward the side circumference R direction.
第二段部Ｄ２のうち段部Ｄ２３のテーパー部分が、実質的に第二溶着部２９として機能する。
内側から数えて、四番目（最も外側）の段部Ｄ２４に連続して、図１３、図１４に例示するように側部円周Ｒ方向に向けて、凸部Ｔ及びフランジＦＲを形成している。
天面Ｕ方向を高い位置としてみた場合、第二段部Ｄ２の（最も内側）の段部Ｄ２１は、図１３、図１４に例示するように第二階段部Ｋ２の最も高い階段部Ｋ２１と実質的に同じないし高い位置に形成している。
第二ハウジング２２の中心Ｏから第二支持部２４の最外側部までの距離：２４ＯＤを１００とすると、
中心Ｏから第二挟持部２５（の側部円周Ｒ方向の略中央）までの距離：２５ＯＤは、概ね４０〜６０、好ましくは４５〜５５、
中心Ｏから第二溶着部２９（の側部円周Ｒ方向の略中央）までの距離：２９ＯＤは、概ね６０〜７５、好ましくは６５〜７０に形成する。
２５ＯＤ、２９ＯＤがあまり大きい（２５ＯＤが６０を超え、Ｄ２９ＯＤが７５を超える）とフィルターＦの配置位置がずれて、第一支持部４との溶着が困難となり、フィルターＦを固定しずらくなる。あまり小さい（２５ＯＤが４０未満で、２９ＯＤが６０未満）とフィルターＦを平坦に配置することができず、めくれ、たわみが生じやすく、均一に固定できない。
Of the second step portion D2, the tapered portion of the step portion D23 substantially functions as the second welded portion 29.
Consecutive to the fourth (outermost) step portion D24, counting from the inside, the convex portion T and the flange FR are formed in the direction of the side circumference R as illustrated in FIGS. Yes.
When the top surface U direction is viewed as a high position, the (innermost) step portion D21 of the second step portion D2 is substantially the same as the highest step portion K21 of the second step portion K2, as illustrated in FIGS. They are formed at the same or higher positions.
Distance from the center O of the second housing 22 to the outermost part of the second support 24: When 24OD is 100,
Distance from the center O to the second clamping part 25 (substantially the center in the side circumference R direction): 25OD is generally 40-60, preferably 45-55,
The distance from the center O to the second welded portion 29 (substantially the center in the side circumference R direction): 29OD is approximately 60 to 75, preferably 65 to 70.
If 25OD and 29OD are too large (25OD exceeds 60 and D29OD exceeds 75), the arrangement position of the filter F is shifted, it becomes difficult to weld the first support portion 4, and the filter F is difficult to fix. If it is too small (25 OD is less than 40 and 29 OD is less than 60), the filter F cannot be arranged flatly, it is easy to bend and bend, and it cannot be fixed uniformly.
第二ハウジング２２は、第二支持部２４の底面Ｄに溝ＭＤを形成している。
底面Ｄの溝ＭＤは、中心Ｏ方向から側部円周Ｒ方向に向けて、（側部円周Ｒ方向に見て）第二段部Ｄ２に対応する箇所から凸部Ｔに対応する箇所を経て、フランジＦＲの最も内側に対応する箇所に至るまで形成している。凸部Ｔに対応する箇所が最も深くなっている。
溝ＭＤの存在により、第一ハウジング２の天面Ｕを、第二ハウジング２２の天面Ｕと溶着する際に、図１、図１５、図１６に例示するように、天面Ｕ方向から底面Ｂ方向に、第一段部Ｄ１から第二段部Ｄ２の段部Ｄ２３（溶着部２９）にかかる負荷、底面Ｂ方向から天面Ｕ方向に、段部Ｄ２３（溶着部２９）から第一段部Ｄ１にかかる負荷を吸収緩和することができる。
The second housing 22 has a groove MD formed on the bottom surface D of the second support portion 24.
The groove MD on the bottom surface D extends from the center O direction toward the side circumference R direction, from the location corresponding to the second step portion D2 (as viewed in the side circumference R direction) to the location corresponding to the convex portion T. Then, it forms to the location corresponding to the innermost side of the flange FR. A portion corresponding to the convex portion T is deepest.
When the top surface U of the first housing 2 is welded to the top surface U of the second housing 22 due to the presence of the groove MD, the bottom surface is viewed from the top surface U direction as illustrated in FIGS. Load in the B direction from the first step portion D1 to the step portion D23 (welding portion 29) of the second step portion D2, from the step D23 (welding portion 29) to the top surface U direction from the bottom surface B direction to the first step. The load applied to the part D1 can be absorbed and reduced.
前記のように、第二支持部２４の外径２４ＯＤを、第一支持部４の外径：４ＯＤよりも大きく形成し、
第一支持部４の第一挟持部２５（第一階段部Ｋ１（Ｋ１１、Ｋ１２、Ｋ１３））、第一溶着部９（第１段部Ｄ１）と、
第二支持部２４の第二挟持部２５（第二階段部Ｋ２（Ｋ２１、Ｋ２２）、溝部２５Ｍ）、第２段部Ｄ２（Ｄ２１、Ｄ２２、Ｄ２３、Ｄ２４）を前記の位置に配置することにより、
第二支持部２４を冶具に安定して固定でき、第一支持部４を天面Ｕ方向から底面Ｂ方向に、抑えながら超音波、熱等を均一に印加することができる。
As described above, the outer diameter 24OD of the second support portion 24 is formed larger than the outer diameter of the first support portion 4: 4OD,
A first clamping part 25 (first stair part K1 (K11, K12, K13)) of the first support part 4, a first welding part 9 (first step part D1),
By arranging the second clamping part 25 (second stepped part K2 (K21, K22), groove part 25M) and second step part D2 (D21, D22, D23, D24) of the second support part 24 at the above-mentioned positions. ,
The second support portion 24 can be stably fixed to the jig, and ultrasonic waves, heat, and the like can be uniformly applied while suppressing the first support portion 4 from the top surface U direction to the bottom surface B direction.
以上の第一挟持部５の第一階段部Ｋ１、第二挟持部２５の第二階段部Ｋ２、溝部２５Ｍの説明は、あくまでも例示であり、フィルターＦを強固に第一ハウジング２と第二ハウジング２２との間に固定できる形態であれば何でも採用することができる。
また以上の第一溶着部９と第二溶着部２９の説明は、あくまでも例示であり、 第一階段部Ｋ１、第二階段部Ｋ２とともに、フィルターＦを強固に第一ハウジング２（第一支持部４）と第二ハウジング２２（第二支持部２４）との間に固定して、溶着できる形態であれば何でも採用することができる。
The above description of the first staircase portion K1 of the first sandwiching portion 5, the second staircase portion K2 of the second sandwiching portion 25, and the groove portion 25M is merely an example, and the filter F is firmly attached to the first housing 2 and the second housing. Any form can be adopted as long as it can be fixed between the two.
The above description of the first welded portion 9 and the second welded portion 29 is merely an example, and together with the first stepped portion K1 and the second stepped portion K2, the filter F is firmly attached to the first housing 2 (first support portion). 4) and the second housing 22 (second support part 24) can be fixed to each other as long as they can be fixed and welded.
［フィルターＦの固定］
フィルターＦは、第一支持部４と第二支持部２４との間に配置し、超音波により、第一溶着部９と第二溶着部２９を溶着することにより、第一挟持部５の第一階段部Ｋ１と、第二挟持部２５の第二階段部Ｋ２、溝部２５Ｍとの間に強固に押さえ込まれて挟持される。
例えば図１５に例示するように、第二ハウジング２４を固定冶具ＫＴに固定し、第一ハウジング２の第一支持部４の第一挟持部５（第一階段部Ｋ１（Ｋ１１、Ｋ１２、Ｋ１３）と第二ハウジング２２の第二挟持部２５（第二階段部Ｋ２（Ｋ２１、Ｋ２２）、溝部２５Ｍ）との間に、フィルターＦを配置する。
第１段部Ｄ１の角部Ｄ１Ｃと第二溶着部２９（段部Ｄ２３）とを接触するように配置している。
第一支持部４の第１段部Ｄ１の角部Ｄ１Ｃに対応する箇所に、天面Ｕ側から超音波ホーンＵを接触させ、第一支持部４を底面Ｄ方向に押しながら超音波を発振させる。
第１段部Ｄ１の角部Ｄ１Ｃと第二溶着部２９（段部Ｄ２３）とを、摩擦熱により溶融し、これらが溶着する。
[Fix filter F]
The filter F is disposed between the first support portion 4 and the second support portion 24 and welds the first welded portion 9 and the second welded portion 29 with ultrasonic waves. The first stepped portion K1, the second stepped portion K2 of the second holding portion 25, and the groove portion 25M are firmly pressed and held.
For example, as illustrated in FIG. 15, the second housing 24 is fixed to the fixing jig KT, and the first clamping portion 5 (first stepped portion K1 (K11, K12, K13) of the first support portion 4 of the first housing 2 is used. The filter F is disposed between the second clamping portion 25 (second stepped portion K2 (K21, K22), groove portion 25M) of the second housing 22.
It arrange | positions so that the corner | angular part D1C of the 1st step part D1 and the 2nd welding part 29 (step part D23) may contact.
The ultrasonic horn U is brought into contact with the corner corresponding to the corner portion D1C of the first step portion D1 of the first support portion 4 from the top surface U side, and ultrasonic waves are oscillated while pushing the first support portion 4 in the bottom surface D direction. Let
The corner portion D1C of the first step portion D1 and the second welding portion 29 (step portion D23) are melted by frictional heat, and these are welded.
以上のようにしてフィルターＦは、第一挟持部５の第一階段部Ｋ１と第二挟持部２５の第二階段部Ｋ２、溝部２５Ｍとの間で強固に押さえ込まれて挟持される。
フィルターＦは、第一ハウジング２の第一支持部４の第一挟持部５（第一階段部Ｋ１）と第二ハウジング２２の第二支持部２４の第二挟持部２５（第二階段部Ｋ２）との間の少ない面積で、外周縁部を挟持固定するものであるから、フィルターＦにかかる負荷を軽減することができ、フィルターＦの品質（性能）を安定化することができる。
As described above, the filter F is firmly pressed and held between the first stepped portion K1 of the first holding portion 5 and the second stepped portion K2 of the second holding portion 25 and the groove portion 25M.
The filter F includes a first sandwiching portion 5 (first step portion K1) of the first support portion 4 of the first housing 2 and a second sandwiching portion 25 (second step portion K2) of the second support portion 24 of the second housing 22. ), The load on the filter F can be reduced, and the quality (performance) of the filter F can be stabilized.
［第一空気圧緩衝部材８、第二空気圧緩衝部材２８］
本発明では、第一ハウジング２の第一支持部材４の天面Ｕに、第一空気圧緩衝部材８を形成し、第二ハウジング２２の第一支持部材２４の天面Ｕに、第二空気圧緩衝部材２８を形成している。
図４、図１０に示すように、第一空気圧緩衝部材８及び第二空気圧緩衝部材２８は、それぞれ第一ハウジング２、第二ハウジング２２の中心Ｏの外側に、複数個（４個）、配置している。
第一空気圧緩衝部材８の中心Ｏ方向から側部円周Ｒ方向には、前記したようにフィルターＦの第一挟持部５、第一溶着部９、凹部Ｍを形成している。
第二空気圧緩衝部材２８の中心Ｏ方向から円周側部Ｒ方向には、前記したようにフィルターＦの第二挟持部２５、第二溶着部２９、凸部Ｔ及びフランジＦＲを形成している。
[First pneumatic shock absorbing member 8, second pneumatic shock absorbing member 28]
In the present invention, the first air pressure buffering member 8 is formed on the top surface U of the first support member 4 of the first housing 2, and the second air pressure buffering is formed on the top surface U of the first support member 24 of the second housing 22. A member 28 is formed.
As shown in FIGS. 4 and 10, a plurality of (four) first air pressure buffer members 8 and second air pressure buffer members 28 are arranged outside the center O of the first housing 2 and the second housing 22, respectively. doing.
As described above, the first sandwiching portion 5, the first welded portion 9, and the concave portion M of the filter F are formed from the center O direction of the first pneumatic cushioning member 8 to the side circumferential direction R.
As described above, the second sandwiching portion 25, the second welded portion 29, the convex portion T, and the flange FR of the filter F are formed from the center O direction of the second pneumatic cushioning member 28 to the circumferential side portion R direction. .
第一空気圧緩衝部材８及び第二空気圧緩衝部材２８は、それぞれ図４、図１０の例示では、縦断面が板状（矩形状）に形成され、第一支持部４と第二支持部２４の天面Ｕ方向から見て、４片が第一支持部４と第二支持部２４の中心Ｏ方向に放射状に配置されているが、空気圧を緩衝できる形状であれば何でも良い。第一支持部４と第二支持部２４の天面Ｕ方向から見て、例えば、環状であっても良い。 透析装置側から第一流路６を経て流入する空気圧は、第一空気圧緩衝部材８の表面に直接衝突して分散され、フィルターＦに印加される空気圧は弱められるので、フィルターＦのダメージを軽くすることができる。
また仮に血液等の液体が、体外循環回路側から第二流路２６を経て流入しても、空気圧と同様に第二空気圧緩衝部材２８の表面に直接衝突して分散され、フィルターＦに印加される流体圧は弱められるので、フィルターＦの負荷を軽くしてダメージを抑えることができる。
In the illustrations of FIGS. 4 and 10, the first air pressure buffer member 8 and the second air pressure buffer member 28 are each formed in a plate shape (rectangular shape) in the vertical cross section, and the first support portion 4 and the second support portion 24. The four pieces are arranged radially in the direction of the center O of the first support portion 4 and the second support portion 24 when viewed from the top surface U direction, but any shape can be used as long as the air pressure can be buffered. When viewed from the top surface U direction of the first support portion 4 and the second support portion 24, for example, it may be annular. The air pressure flowing in from the dialyzer side through the first flow path 6 directly collides with the surface of the first air pressure buffer member 8 and is dispersed, and the air pressure applied to the filter F is weakened, so the damage to the filter F is reduced. be able to.
Also, even if a liquid such as blood flows from the extracorporeal circuit side through the second flow path 26, it collides directly with the surface of the second air pressure buffer member 28 and is applied to the filter F in the same manner as the air pressure. Since the fluid pressure is reduced, the load on the filter F can be reduced and damage can be suppressed.
本発明のトランスデューサープロテクタ１は、高圧蒸気滅菌に耐えうる材質で形成することが好ましく、例えば第一ハウジング２と第二ハウジング２２にはポリプロピレン、ポリカーボネート等を採用することができ、フィルター１０はポリテトラフロロエチレン等の疎水性フィルターを採用することができる。
フィルター１０は、図１ではシート状形成されているが、少なくとも０．２μｍ以上の液体（体液、血液）、微生物、浮遊塵などは通過せず、気体は通過する構造、材質のものであれば何でも良い。
The transducer protector 1 of the present invention is preferably formed of a material that can withstand high-pressure steam sterilization. For example, the first housing 2 and the second housing 22 can be made of polypropylene, polycarbonate, or the like. A hydrophobic filter such as tetrafluoroethylene can be employed.
The filter 10 is formed in the form of a sheet in FIG. 1, but does not pass liquids (body fluids, blood), microorganisms, airborne dust, etc. of at least 0.2 μm, and gas is allowed to pass through. anything is fine.
本発明のトランスデューサープロテクタ１は、例えば予め血液透析で使用する体外循環回路のドリップチャンバーの圧力モニターラインに装着することができる。
前記体外循環回路を組立てる際に前記トランスデューサープロテクタ１を装着し、高圧蒸気滅菌することにより、新たに前記トランスデューサープロテクタ１を装着する必要がなくなる。
The transducer protector 1 of the present invention can be attached to, for example, a pressure monitor line of a drip chamber of an extracorporeal circuit used in advance for hemodialysis.
When assembling the extracorporeal circuit, the transducer protector 1 is attached and sterilized with high-pressure steam, so that it is not necessary to newly attach the transducer protector 1.
[ハウジング２、２２の構成材料]
ハウジング２、２２の構成材料は、ポリカーボネート（ＰＣ）樹脂である。
ポリカーボネート（ＰＣ）樹脂は、熱可塑性の非結晶質のエンジニアリングプラスチックであり、強度、靭性、耐放射線滅菌、耐薬品性、寸法精度・寸法安定性、透明性に優れる。
ポリカーボネート（ＰＣ）樹脂には、例えば、原料の造粒過程における熱安定性の確保や原料を用いた成形品の強度、剛性、靱性、耐クリープ性、耐疲労性等の種々の物理的特性（機械的特性）を改善するため、製造時の材料特性、例えば流動性、寸法安定性を調整するため、または化学的性質、例えば耐熱性、耐薬品性、生体適合性を改善するために、一般的に、各種添加剤が添加される。
[Constituent materials of housings 2 and 22]
The constituent material of the housings 2 and 22 is polycarbonate (PC) resin.
Polycarbonate (PC) resin is a thermoplastic amorphous engineering plastic, and is excellent in strength, toughness, radiation sterilization resistance, chemical resistance, dimensional accuracy / dimensional stability, and transparency.
Polycarbonate (PC) resin has various physical properties such as, for example, ensuring thermal stability in the granulation process of raw materials and strength, rigidity, toughness, creep resistance, fatigue resistance of molded products using the raw materials ( General to improve mechanical properties), to adjust material properties during manufacture, such as flowability, dimensional stability, or to improve chemical properties, such as heat resistance, chemical resistance, biocompatibility In particular, various additives are added.
本発明において使用されるポリカーボネート樹脂とは、種々のジヒドロキシジアリール化合物とホスゲンとを反応させるホスゲン法、またはジヒドロキシジアリール化合物とジフェニルカーボネートなどの炭酸エステルとを反応させるエステル交換法によって得られる重合体であり、代表的なものとしては、２，２−ビス（４−ヒドロキシフェニル）プロパン（ビスフェノールＡ）から製造されたポリカーボネート樹脂が挙げられる。 The polycarbonate resin used in the present invention is a polymer obtained by a phosgene method in which various dihydroxydiaryl compounds and phosgene are reacted or a transesterification method in which a dihydroxydiaryl compound and a carbonate such as diphenyl carbonate are reacted. A typical example is polycarbonate resin produced from 2,2-bis (4-hydroxyphenyl) propane (bisphenol A).
１ トランスデューサープロテクタ
２ 第一ハウジング（透析装置側）
２２ 第二ハウジング（体外循環回路側）
３ 第一接続部
３Ｎ 接続部
２３ 第二接続部
４ 第一支持部
２４ 第二支持部
５ 第一挟持部
２５ 第二挟持部
２５Ｍ 溝
６ 第一流路
２６ 第二流路
８ 第一空気圧緩衝部材
２８ 第二空気圧緩衝部材
９ 第一溶着部
２９ 第二溶着部
１０ 第一凹部
３０ 第二凹部
Ｋ１、Ｋ１１、Ｋ１２、Ｋ１３ 第一階段部
Ｋ２、Ｋ２１、Ｋ２２ 第二階段部
Ｄ１ 第一段部
Ｄ１Ｃ 角部
Ｄ２ 第二段部
Ｆ （疎水性）フィルター
Ｏ 中心
ＦＲ フランジ
Ｍ 凹部
Ｔ 凸部
ＭＤ 溝部
Ｈ 超音波ホーン
ＫＴ 固定冶具
1 Transducer protector 2 First housing (dialysis machine side)
22 Second housing (external circulation circuit side)
3 1st connection part 3N connection part 23 2nd connection part 4 1st support part 24 2nd support part 5 1st clamping part 25 2nd clamping part 25M groove | channel 6 1st flow path 26 2nd flow path 8 1st pneumatic buffer member 28 2nd pneumatic shock absorbing member 9 1st welding part 29 2nd welding part 10 1st recessed part 30 2nd recessed part K1, K11, K12, K13 1st step part K2, K21, K22 2nd step part D1 1st step part D1C Corner part D2 Second stage part F (hydrophobic) filter O Center FR Flange M Concave part T Convex part MD Groove part H Ultrasonic horn KT Fixing jig
Claims (8)
前記第一ハウジング（２）と前記第二ハウジング（２２）は、それぞれ略円筒状の第一支持部（４）と第二支持部（２４）及び管状の第一接続部（３）と第二接続部（２３）とを有し、
前記第一支持部（４）と前記第二支持部（２４）は、長手（Ｌ）方向と、当該長手方向と略垂直に交わる側部円周（Ｒ）方向とを有し、前記長手（Ｌ）方向は、天面（Ｕ）と底面（Ｄ）とを有し、
前記第一支持部（４）と前記第二支持部（２４）の底面（Ｄ）に、それぞれ前記第一接続部（３）と前記第二接続部（２３）を突設し、
前記第一支持部４の外径（４ＯＤ）は、前記第二支持部２４の外径（２４ＯＤ）よりも小さく形成し、前記第二支持部２４の外径（２４ＯＤ）の大きさを、１００とすると、前記第一支持部（４）の外径：（４ＯＤ）は、６５〜８５に形成し、
前記第一ハウジング（２）の第一支持部（４）の天面（Ｕ）に、中心（Ｏ）方向から側部円周（Ｒ）方向に向けて、順次、第一挟持部（５）、第一溶着部（９）を形成し、当該第一溶着部（９）は第一段部（Ｄ１）を有し、
前記第一挟持部（５）は第一階段部（Ｋ１）を有し、
前記第二ハウジング（２２）の第二支持部（２４）の天面（Ｕ）に、中心（Ｏ）方向から側部円周（Ｒ）方向に向けて、順次、環状の第二挟持部（２５）、第二段部（Ｄ２）を形成し、当該第二段部（Ｄ２）は第二溶着部（２９）を有し、
前記第二挟持部（２５）は、第二階段部（Ｋ２）を有し、
フィルタ（Ｆ）を、前記第一支持部（４）と前記第二支持部（２４）との間に配置し、
前記フィルタ（Ｆ）の外周縁部を、前記第一挟持部（５）の第一階段部（Ｋ１）と、前記第二挟持部（２５）の第二階段部（Ｋ２）との間に配置し、超音波により、
前記第一溶着部（９）の第一段部（Ｄ１）の角部（Ｄ１Ｒ）と前記第二溶着部（２９）を溶融することにより、当該第二溶着部（２９）と前記角部（Ｄ１Ｒ）とを溶着し、
前記フィルター（Ｆ）の外周縁部を、前記第一階段部（Ｋ１）と前記第二階段部（Ｋ２）との間で挟持固定した、ことを特徴とするトランスデューサープロテクタ（１）。 A first housing (2) and a second housing (22);
The first housing (2) and the second housing (22) have a substantially cylindrical first support part (4) and a second support part (24), and a tubular first connection part (3) and a second one, respectively. A connecting portion (23),
The first support portion (4) and the second support portion (24) have a longitudinal (L) direction and a side circumferential (R) direction that intersects the longitudinal direction substantially perpendicularly. L) direction has a top surface (U) and a bottom surface (D),
The first connection part (3) and the second connection part (23) are respectively projected from the bottom surface (D) of the first support part (4) and the second support part (24),
The outer diameter (4OD) of the first support part 4 is formed smaller than the outer diameter (24OD) of the second support part 24, and the outer diameter (24OD) of the second support part 24 is set to 100. Then, the outer diameter of the first support part (4): (4OD) is formed in 65-85,
In order from the center (O) direction to the side circumferential (R) direction on the top surface (U) of the first support part (4) of the first housing (2), the first clamping part (5) , Forming a first welded portion (9), the first welded portion (9) has a first step portion (D1),
The first clamping part (5) has a first step part (K1),
On the top surface (U) of the second support portion (24) of the second housing (22), an annular second clamping portion (in order from the center (O) direction toward the side circumferential (R) direction) 25), forming a second step portion (D2), the second step portion (D2) has a second welded portion (29),
Said 2nd clamping part (25) has a 2nd step part (K2),
The filter (F) is disposed between the first support part (4) and the second support part (24),
The outer peripheral edge portion of the filter (F) is disposed between the first stepped portion (K1) of the first holding portion (5) and the second stepped portion (K2) of the second holding portion (25). And by ultrasound
By melting the corner (D1R) of the first step portion (D1) and the second welded portion (29) of the first welded portion (9), the second welded portion (29) and the corner portion ( D1R)
The transducer protector (1), wherein the outer peripheral edge of the filter (F) is clamped and fixed between the first step (K1) and the second step (K2).
第二ハウジング（２２）は、第二段部（Ｄ２）の側部円周（Ｒ）方向に、順次、凸部（Ｔ）、フランジ（ＦＲ）を形成し、
前記第二ハウジング（２２）は、第二支持部（２４）の底面（Ｄ）に溝（ＭＤ）を形成した、ことを特徴とする請求項１または請求項２に記載のトランスデューサープロテクタ（１）。 The first housing (2) forms a recess (M) in the side circumference (R) direction of the first welded portion (9),
The second housing (22) sequentially forms a convex portion (T) and a flange (FR) in the side circumferential (R) direction of the second step portion (D2),
The transducer protector (1) according to claim 1 or 2, wherein the second housing (22) has a groove (MD) formed in a bottom surface (D) of the second support portion (24). ).
中心（Ｏ）から第二挟持部（２４）までの距離（２５ＯＤ）は、４０〜６０、
中心（Ｏ）から第二段部（Ｄ２）までの距離（Ｄ２ＯＤ）は、５０〜７０、
に形成した、ことを特徴とする請求項１から請求項４のいずれか１項に記載のトランスデューサープロテクタ（１）。 When the distance (24 OD) from the center (O) of the second housing (22) to the outermost part of the second support part (24) is 100,
The distance (25 OD) from the center (O) to the second clamping part (24) is 40-60,
The distance (D2OD) from the center (O) to the second step (D2) is 50 to 70,
The transducer protector (1) according to any one of claims 1 to 4, wherein the transducer protector (1) is formed.
第一段部（Ｄ１）は、第一階段部（Ｋ１）の最も低い部分よりも低い位置に形成した、ことを特徴とする請求項１から請求項５のいずれか１項に記載のトランスデューサープロテクタ（１）。 When the top surface (U) of the first support portion (4) of the first housing (2) is viewed as a high position, the first stepped portion (K1) is in the side circumferential (R) direction from the center (O) direction. Towards the height,
The transducer according to any one of claims 1 to 5, wherein the first step portion (D1) is formed at a position lower than a lowest portion of the first step portion (K1). Protector (1).
第二段部（Ｄ２）は、前記第二階段部（Ｋ２）の最も高い部分よりも高い位置に形成した、ことを特徴とする請求項１から請求項６のいずれか１項に記載のトランスデューサープロテクタ（１）。 When the top surface direction (U) is viewed as a high position, the second stepped portion (K2) is formed so as to become lower from the center (O) direction toward the side circumference (R) direction,
The transformer according to any one of claims 1 to 6, wherein the second step portion (D2) is formed at a position higher than the highest portion of the second step portion (K2). Deuce protector (1).
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| JP2014234652A JP6373732B2 (en) | 2014-11-19 | 2014-11-19 | Transducer protector and extracorporeal circuit |
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| JP2014234652A JP6373732B2 (en) | 2014-11-19 | 2014-11-19 | Transducer protector and extracorporeal circuit |
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| JP6373732B2 JP6373732B2 (en) | 2018-08-15 |
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Citations (6)
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|---|---|---|---|---|
| JPH067648A (en) * | 1992-02-28 | 1994-01-18 | Millipore Corp | Filter device with stress relieving groove |
| US6536278B1 (en) * | 1999-11-08 | 2003-03-25 | Gvs S.R.L. | Transducer protection device, particularly for hemodialysis processes |
| JP2006520634A (en) * | 2003-03-21 | 2006-09-14 | ガンブロ・ルンディア・エービー | Device that protects medical devices |
| JP2011041679A (en) * | 2009-08-21 | 2011-03-03 | Kawasumi Lab Inc | Transducer for blood circulation circuit outside body |
| JP4727974B2 (en) * | 2004-11-29 | 2011-07-20 | 川澄化学工業株式会社 | Transducer filter and extracorporeal circuit |
| JP2014204779A (en) * | 2013-04-11 | 2014-10-30 | 日機装株式会社 | Transducer protection filter |
-
2014
- 2014-11-19 JP JP2014234652A patent/JP6373732B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH067648A (en) * | 1992-02-28 | 1994-01-18 | Millipore Corp | Filter device with stress relieving groove |
| US6536278B1 (en) * | 1999-11-08 | 2003-03-25 | Gvs S.R.L. | Transducer protection device, particularly for hemodialysis processes |
| JP2006520634A (en) * | 2003-03-21 | 2006-09-14 | ガンブロ・ルンディア・エービー | Device that protects medical devices |
| JP4727974B2 (en) * | 2004-11-29 | 2011-07-20 | 川澄化学工業株式会社 | Transducer filter and extracorporeal circuit |
| JP2011041679A (en) * | 2009-08-21 | 2011-03-03 | Kawasumi Lab Inc | Transducer for blood circulation circuit outside body |
| JP2014204779A (en) * | 2013-04-11 | 2014-10-30 | 日機装株式会社 | Transducer protection filter |
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