JP3128724U - Drip chamber - Google Patents

Drip chamber Download PDF

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JP3128724U
JP3128724U JP2006007513U JP2006007513U JP3128724U JP 3128724 U JP3128724 U JP 3128724U JP 2006007513 U JP2006007513 U JP 2006007513U JP 2006007513 U JP2006007513 U JP 2006007513U JP 3128724 U JP3128724 U JP 3128724U
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blood
partition
drip chamber
central member
hole
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秀樹 村中
邦春 浜崎
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Kawasumi Laboratories Inc
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Kawasumi Laboratories Inc
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Abstract

【課題】ドリップチャンバ内で血液(血球、血小板)が凝固することがなく、滞留による血液の凝固、残血もないドリップチャンバを提供すること。
【解決手段】略円筒状の中央部材(6)に上部筒体(2)と下部筒体(3)を装着し、前記中央部材(6)は、略側部に血液流入口(7)を形成し、かつ当該血液流入口(7)よりも上部の内壁に、孔(9)を形成した仕切(8)を配置したドリップチャンバ(1)。前記孔(9)は、前記仕切(8)の略中央に形成し、当該仕切(8)の下部は、当該仕切(8)外縁から前記孔(9)に向けて上方向へ傾斜する上傾斜面(8U)を形成した。
【選択図】図1
An object of the present invention is to provide a drip chamber in which blood (blood cells, platelets) does not coagulate in the drip chamber, and the blood does not coagulate due to residence and no residual blood.
An upper cylindrical body (2) and a lower cylindrical body (3) are mounted on a substantially cylindrical central member (6), and the central member (6) has a blood inlet (7) on a substantially lateral side. A drip chamber (1) having a partition (8) formed and having a hole (9) formed on the inner wall above the blood inlet (7). The hole (9) is formed substantially at the center of the partition (8), and the lower portion of the partition (8) is inclined upward from the outer edge of the partition (8) toward the hole (9). A surface (8U) was formed.
[Selection] Figure 1

Description

本考案は、血液透析、血液濾過、血漿交換などの血液の体外循環回路の途中に設置して使用されるドリップチャンバの改良に関する。特にヘパリン等の抗凝固剤の使用量を低減し、血液の凝血、残血を皆無ないし最小限に抑えて体外循環を行なうことができるドリップチャンバである。   The present invention relates to an improvement of a drip chamber used by being installed in the middle of an extracorporeal circuit for blood such as hemodialysis, blood filtration, and plasma exchange. In particular, the drip chamber can reduce the amount of an anticoagulant such as heparin and perform extracorporeal circulation with no or minimal blood coagulation and residual blood.

出願人は、特許文献1に、上部筒体2と、側部に体液導入口3aを有するリング3と、内部にフィルタ6と体液導出口5aを有する下部筒体4とからなり、体液導入口リング3の内側に、下方に延びた点滴芯3cを形成したドリップチャンバを開示した。本件考案では、血液はドリップチャンバ本体10の横方向から確実に底部に向けて導入され、液面レベルが下がっても、抗凝固剤の注入された血液の層をチャンバ本体10上部に、安定して最上部層として終始維持することができるので、血液が空気と接触する機会を遮断することができる。しかし本件考案では、ヘパリン等の抗凝固剤の使用量を皆無ないし低減することができない。   The applicant has disclosed in Patent Document 1 an upper cylinder 2, a ring 3 having a body fluid inlet 3 a on the side, and a lower cylinder 4 having a filter 6 and a body fluid outlet 5 a inside. A drip chamber in which a drip core 3c extending downward is formed inside the ring 3 is disclosed. In the present invention, blood is surely introduced from the lateral direction of the drip chamber body 10 toward the bottom, and even when the liquid level is lowered, the blood layer into which the anticoagulant is injected is stabilized at the top of the chamber body 10. Since it can be maintained as the uppermost layer throughout, the opportunity for blood to come into contact with air can be blocked. However, in the present device, the amount of anticoagulant such as heparin used is not at all or cannot be reduced.

また特許文献2には、チャンバの上面から血液導入管をチャンバ内に30mm以上垂直下方に延伸させた血液回路用チャンバの発明が開示されている。すなわちチャンバの略中間部付近に、血液導入管の開口部を延設し、当該開口部から緩やかに血液を流入させ、チャンバ内で上方から空気層、血漿をわずかに含んだ生理食塩水層、血液層の3層に分離させ、血液層が直接空気層に接触れることがないようにすることができる発明である。本件発明では、血液回収時に血液出口からチャンバー内上方の生理食塩水が最後にでるため凝血、残血の発生が大幅に減少できる。
しかし、血液はチャンバの略中間部から導入され、そのまま下方にゆっくりと血液出口から排出されるので、チャンバ内でほとんど攪拌されない。このため血液の滞留による凝固等が懸念される。
実用新案登録第2574507号公報(図1参照) 特開昭60−119959号公報(図5参照)
Patent Document 2 discloses an invention of a blood circuit chamber in which a blood introduction tube is extended vertically downward by 30 mm or more into the chamber from the upper surface of the chamber. That is, an opening of a blood introduction tube is extended in the vicinity of a substantially middle portion of the chamber, blood is gently introduced from the opening, an air layer from above, a physiological saline layer slightly containing plasma, In the invention, the blood layer can be separated into three layers so that the blood layer does not directly contact the air layer. In the present invention, since physiological saline above the chamber exits from the blood outlet at the time of blood collection, the occurrence of blood clots and residual blood can be greatly reduced.
However, since blood is introduced from the substantially middle part of the chamber and slowly discharged from the blood outlet as it is, it is hardly agitated in the chamber. For this reason, there is a concern about coagulation due to blood retention.
Utility Model Registration No. 2574507 (see FIG. 1) JP 60-119959 A (see FIG. 5)

本考案者が解決しようとする問題点は、特許文献1では、ヘパリン等の抗凝固剤の使用量を皆無ないし低減することができない点である。特許文献2では、血液は、チャンバ内でほとんど攪拌されないので、血液の滞留による凝固等が懸念される点である。   The problem to be solved by the present inventor is that, in Patent Document 1, the amount of anticoagulant such as heparin used is not at all or cannot be reduced. In Patent Document 2, since blood is hardly agitated in the chamber, there is a concern about coagulation due to retention of blood.

そこで本考案者は、以上の課題を解決するために鋭意検討を重ねた結果、以下の考案に到達した。
[1]本考案は、略円筒状の中央部材(6)に上部筒体(2)と下部筒体(3)を装着し、
前記中央部材(6)は、略側部に血液流入口(7)を形成し、かつ当該血液流入口(7)よりも上部の内壁に、孔(9)を形成した仕切(8)を配置したドリップチャンバ(1)を提供する。
[2]本考案は、前記孔(9)は、前記仕切(8)の略中央に形成し、当該仕切(8)の下部は、当該仕切(8)外縁から前記孔(9)に向けて上方向へ傾斜する上傾斜面(8U)を形成した[1]記載のドリップチャンバ(1)を提供する。
[3]本考案は、前記孔(9)は、前記仕切(8)の略中央に形成し、当該仕切(8)の上部は、当該仕切(8)外縁から前記孔(9)に向けて下方向へ傾斜する下傾斜面(8L)を形成した[1]または[2]に記載のドリップチャンバ(1)を提供する。
Therefore, as a result of intensive studies to solve the above problems, the present inventor has reached the following idea.
[1] The present invention attaches the upper cylindrical body (2) and the lower cylindrical body (3) to the substantially cylindrical central member (6),
The central member (6) is provided with a partition (8) in which a blood inlet (7) is formed in a substantially side portion and a hole (9) is formed in an inner wall above the blood inlet (7). A drip chamber (1) is provided.
[2] In the present invention, the hole (9) is formed substantially at the center of the partition (8), and the lower part of the partition (8) is directed from the outer edge of the partition (8) toward the hole (9). A drip chamber (1) according to [1], in which an upper inclined surface (8U) inclined upward is formed.
[3] In the present invention, the hole (9) is formed substantially at the center of the partition (8), and the upper portion of the partition (8) is directed from the outer edge of the partition (8) toward the hole (9). A drip chamber (1) according to [1] or [2] in which a lower inclined surface (8L) inclined downward is formed.

血液流入口7からドリップチャンバ1内に導入された血液は、仕切8より上に上昇しにくいため、生理食塩水と混合しない。このため最上層に生理食塩水の層を形成でき、血液(血球、血小板)は空気に触れないので、凝固することがない。
ドリップチャンバ1内の血液(血球、血小板)は、空気に直接触れる機会が皆無であり、攪拌も充分にされるので、血液の滞留がなくなり、滞留による血液の凝固、残血がなくなる。
血液は、上部を生理食塩水の層で覆われた状態で、血液流出口14から流出し、最後に生理食塩水が流出する。このためドリップチャンバ1内の血液(血球、血小板)は、空気に触れず速やかに回収できるので、凝固や残血もない。
The blood introduced into the drip chamber 1 from the blood inlet 7 is unlikely to rise above the partition 8 and therefore does not mix with physiological saline. For this reason, a physiological saline layer can be formed on the uppermost layer, and blood (blood cells, platelets) does not touch the air and therefore does not coagulate.
The blood (blood cells, platelets) in the drip chamber 1 has no opportunity to come into direct contact with air and is sufficiently agitated, so that no blood stays, and blood coagulation and residual blood due to staying disappear.
The blood flows out from the blood outlet 14 with the top covered with a physiological saline layer, and finally the physiological saline flows out. For this reason, the blood (blood cells, platelets) in the drip chamber 1 can be promptly collected without touching the air, so there is no clotting or residual blood.

[ドリップチャンバ1]
図1は本考案のドリップチャンバ1の概略図、図2は中央部材6の断面図、図3(a)は中央部材6のA−A´断面図、図3(b)は中央部材6のB−B´断面図、図4は本考案のドリップチャンバ1の使用状態を示す概略図で、(a)は生理食塩水充填時、(b)は血液導入時、(c)は血液循環時、(d)は血液回収開始時、図5は図4(c)の一部拡大図である。
本考案のドリップチャンバ1は、略円筒状の中央部材6に上部筒体2と下部筒体3を装着し、前記中央部材6は、略側部に血液流入口7を形成し、かつ当該血液流入口7よりも上部の内壁に、孔9を形成した仕切8を配置している。
[Drip chamber 1]
1 is a schematic view of a drip chamber 1 of the present invention, FIG. 2 is a cross-sectional view of a central member 6, FIG. 3A is a cross-sectional view of the central member 6, and FIG. FIG. 4 is a schematic view showing a use state of the drip chamber 1 of the present invention, (a) when filling with physiological saline, (b) when introducing blood, and (c) when circulating blood. , (D) is a start of blood collection, and FIG. 5 is a partially enlarged view of FIG. 4 (c).
In the drip chamber 1 of the present invention, an upper cylindrical body 2 and a lower cylindrical body 3 are mounted on a substantially cylindrical central member 6, and the central member 6 forms a blood inlet 7 on a substantially lateral side, and A partition 8 having a hole 9 is disposed on the inner wall above the inlet 7.

[中央部材6]
中央部材6は、図1から図3に例示するように、略円筒状に形成され、略側部に血液流入口7を形成し、かつ内壁に孔9を形成した仕切8を配置している。仕切8は、血液流入口7よりも上部に配置されている。
また中央部材6は、上部と下部を中間部よりも薄肉に形成し、それぞれに上部筒体2と下部筒体3の装着溝62、63を形成し、各筒体2、3を装着(係合、嵌合、圧入、挿着、挿入等)している。中間部の略側部に血液流入口7を形成している。
[Central member 6]
As illustrated in FIGS. 1 to 3, the central member 6 is formed in a substantially cylindrical shape, and has a partition 8 in which a blood inlet 7 is formed in a substantially side portion and a hole 9 is formed in an inner wall. . The partition 8 is disposed above the blood inlet 7.
The central member 6 has an upper portion and a lower portion that are thinner than the middle portion, and is provided with mounting grooves 62 and 63 for the upper and lower cylinders 2 and 3, respectively. Fitting, press-fitting, insertion, insertion, etc.). A blood inlet 7 is formed in a substantially side portion of the intermediate portion.

[仕切8]
仕切8は、図1と図2に例示するように、略板状に形成され、略中央に孔9が形成されている。
仕切8は、血液流入口7から中央部材6内に流入した血液が、上部筒体2方向へ必要以上に上昇して、生理食塩水と混合するのを抑制するものである。
仕切8の下部は、仕切8外縁から孔9に向むけて上方向へ傾斜する上傾斜面8Uを形成している。上傾斜面8Uにより、仕切8より下部の気泡が上部へ上昇しやすくなり、仕切8より下部に位置している血液中の気泡を上部筒体2へ容易に排出することができる。
また仕切8の上部は、仕切8外縁から孔9に向むけて下方向へ傾斜する下傾斜面8Lを形成している。下傾斜面8Lにより、上部に位置している血液や生理食塩水を中央部材6、下部筒体3へスムーズに排出することができる。
上傾斜面8Uと下傾斜面8Lの傾斜(角度)は、緩やかに形成するのが好ましく、例えば10°から20°が好適である。傾斜(角度)があまり小さい(10°未満)では、前記の気泡、血液等の排出効果に乏しく、上傾斜面8Uでは、あまり大きい(20°を超える)と血液が孔9を超えて上昇しやすくなるので好ましくない。
仕切8の形態は、図1から図3に例示したものに限定されず、前記本考案の作用効果を奏することができれば、何でも良い。
[Partition 8]
As illustrated in FIGS. 1 and 2, the partition 8 is formed in a substantially plate shape, and a hole 9 is formed in a substantially center.
The partition 8 prevents blood flowing into the central member 6 from the blood inlet 7 from rising more than necessary in the direction of the upper cylinder 2 and mixing with the physiological saline.
The lower part of the partition 8 forms an upper inclined surface 8U that is inclined upward from the outer edge of the partition 8 toward the hole 9. The upper inclined surface 8U makes it easier for bubbles below the partition 8 to rise upward, and bubbles in the blood located below the partition 8 can be easily discharged to the upper cylinder 2.
The upper part of the partition 8 forms a lower inclined surface 8L that is inclined downward from the outer edge of the partition 8 toward the hole 9. By the lower inclined surface 8L, blood and physiological saline located in the upper part can be smoothly discharged to the central member 6 and the lower cylindrical body 3.
The inclination (angle) of the upper inclined surface 8U and the lower inclined surface 8L is preferably formed gently, for example, 10 ° to 20 ° is preferable. When the inclination (angle) is too small (less than 10 °), the effect of discharging the bubbles, blood, etc. is poor. On the upper inclined surface 8U, when the angle is too large (over 20 °), the blood rises beyond the hole 9. Since it becomes easy, it is not preferable.
The form of the partition 8 is not limited to that illustrated in FIGS. 1 to 3, and may be anything as long as the effects of the present invention can be achieved.

[血液流入口7]
血液流入口7の開口断面7Oは、図2に例示するように中央部材6の湾曲した壁面に沿って湾曲している。これにより血液流入口7から中央部材6内に導入された血液は、中央部材6の内壁面を伝って渦流を形成し、中央部材6内に充填された血液を上部から下部にかけて充分撹拌しつつ血液流出口14より流出させるので、ドリップチャンバ1内部での血液の滞留がなくなり、滞留による血液の凝固、残血がなくなる。
図2の例示では、血液流入口7は、中央部材6の両側部の辺と実質的に垂直(横方向)に形成されているが、さらに本体内の血液の撹拌効果を高めるために、下方に傾斜させて(中央部材6の両側部の辺と鋭角に)形成してもよい(図示せず)。
[Blood inlet 7]
The opening cross section 70 of the blood inlet 7 is curved along the curved wall surface of the central member 6 as illustrated in FIG. Thus, the blood introduced into the central member 6 from the blood inlet 7 travels along the inner wall surface of the central member 6 to form a vortex, and the blood filled in the central member 6 is sufficiently stirred from the top to the bottom. Since the blood flows out from the blood outlet 14, there is no blood stagnation inside the drip chamber 1, and blood coagulation and residual blood due to stagnation are eliminated.
In the illustration of FIG. 2, the blood inlet 7 is formed substantially perpendicular (lateral direction) to the sides on both sides of the central member 6, but in order to further enhance the blood stirring effect in the main body, May be formed (at an acute angle with the sides on both sides of the central member 6) (not shown).

[その他の各部材]
次にドリップチャンバ1のその他の各部材について説明する。
上部筒体2には図1に例示するように、上部キャップ4が装着され、当該上部キャップ4の上部には、圧力モニタライン13と補液ライン12が装着されている。なお必要に応じてレベル調整ライン(図示せず)、気泡除去ライン(図示せず)を装着しても良い。気泡除去ラインを装着することにより気泡を上部筒体2内から外部に排出することができる。
下部筒体3には、下部キャップ5が装着され、当該下部キャップ5の下部には、血液流出口14が形成されている。
また下部筒体3または下部キャップ5下部の内周壁には、フィルタ11が装着(係合、嵌合、圧入、挿着、挿入等)されている。
[Other components]
Next, other members of the drip chamber 1 will be described.
As illustrated in FIG. 1, an upper cap 4 is attached to the upper cylinder 2, and a pressure monitor line 13 and a replacement fluid line 12 are attached to the upper portion of the upper cap 4. If necessary, a level adjustment line (not shown) and a bubble removal line (not shown) may be attached. By mounting the bubble removal line, the bubbles can be discharged from the upper cylindrical body 2 to the outside.
A lower cap 5 is attached to the lower cylinder 3, and a blood outlet 14 is formed in the lower portion of the lower cap 5.
A filter 11 is mounted (engaged, fitted, press-fitted, inserted, inserted, etc.) on the inner peripheral wall of the lower cylindrical body 3 or the lower cap 5.

[ドリップチャンバ1の使用例]
図4と図5により、本考案のドリップチャンバ1の使用方法の一例について、説明する。
[1]生理食塩水のプライミング
図4(a)に例示するように、血液流入口7よりドリップチャンバ1内に生理食塩水を充填する。ドリップチャンバ1のほぼ全体に充填するには、ドリップチャンバ1を適宜倒立させながら充填する。
[2]血液の導入
図4(b)に例示するように、血液を血液流入口7からゆっくりと(血液流速;例えば50から100ml/分)、ドリップチャンバ1内に導入する。血液はゆっくりと導入することにより、大部分が仕切8を超えて上昇しない。一部が孔9を経て仕切8より上に上昇するのみである。このように、血液は仕切8により上昇しにくいため、血液の過剰な上昇により生理食塩水と攪拌して混合するがなく、最上部の生理食塩水層を維持することができる。
[3]血液循環時
図4(c)に例示するように、血液循環時(血液流速;例えば200から300ml/分)には、常時、生理食塩水の層が最上層に位置し、その下部に血漿層ができるので、血液中の血球、血小板は空気に直接触れることがない。さらに仕切8より下部に位置する血液中の気泡は、図5に例示するように、仕切8の下傾斜面8Lに沿って、孔9を経て、上筒部2の空間内にすみやかに排出される。
血液流入口7から中央部材6内に導入された血液は、中央部材6の内壁面を伝って渦流を形成し、中央部材6内に充填された血液を上部から下部にかけて充分撹拌しつつ血液流出口14より流出させる。
以上のように、ドリップチャンバ1内の血液(血球、血小板)は、空気に直接触れる機会が皆無であり、攪拌も充分にされるので、血液の滞留がなくなり、滞留による血液の凝固、残血がなくなる。
図4(d)に例示するように圧力モニタライン13から上部筒体2内に空気を導入し、液面レベルを低下させる。図5に例示するように仕切8より上部の血液、血漿及び生理食塩水は、仕切8の上傾斜面8Uに沿って、孔9を経て、下筒部3方向へすみやかに排出される。
血液と血漿は、上部を生理食塩水の層で覆われた状態で、血液流出口14から流出し、最後に生理食塩水15が流出する。以上のように、ドリップチャンバ1内の血液(血球、血小板)は、空気に触れず速やかに回収できるので、凝固や残血もない。
[Usage example of drip chamber 1]
An example of how to use the drip chamber 1 of the present invention will be described with reference to FIGS.
[1] Priming of physiological saline As illustrated in FIG. 4A, physiological saline is filled into the drip chamber 1 from the blood inlet 7. In order to fill almost the entire drip chamber 1, the drip chamber 1 is filled while being appropriately inverted.
[2] Introduction of Blood As illustrated in FIG. 4B, blood is slowly introduced into the drip chamber 1 from the blood inlet 7 (blood flow rate; for example, 50 to 100 ml / min). By introducing the blood slowly, most of the blood does not rise beyond the partition 8. Some only rise above the partition 8 via the holes 9. In this way, since blood does not easily rise due to the partition 8, there is no need to stir and mix with physiological saline due to excessive rise of blood, and the uppermost physiological saline layer can be maintained.
[3] During blood circulation As illustrated in FIG. 4 (c), during the blood circulation (blood flow rate; for example, 200 to 300 ml / min), the physiological saline layer is always positioned at the uppermost layer, and the lower part thereof. Since a plasma layer is formed, blood cells and platelets in the blood do not directly touch the air. Furthermore, bubbles in the blood located below the partition 8 are promptly discharged into the space of the upper cylindrical portion 2 through the holes 9 along the lower inclined surface 8L of the partition 8 as illustrated in FIG. The
The blood introduced from the blood inlet 7 into the central member 6 travels along the inner wall surface of the central member 6 to form a vortex, and the blood filled in the central member 6 is sufficiently stirred from the top to the bottom while the blood flow It flows out from the outlet 14.
As described above, the blood (blood cells, platelets) in the drip chamber 1 has no chance of direct contact with air and is sufficiently agitated, so that the blood does not stay and the blood coagulates and remains due to the stay. Disappears.
As illustrated in FIG. 4D, air is introduced from the pressure monitor line 13 into the upper cylinder 2 to lower the liquid level. As illustrated in FIG. 5, blood, plasma, and physiological saline above the partition 8 are quickly discharged along the upper inclined surface 8U of the partition 8 through the hole 9 in the direction of the lower cylinder portion 3.
The blood and plasma flow out from the blood outlet 14 with the top covered with a physiological saline layer, and finally the physiological saline 15 flows out. As described above, the blood (blood cells, platelets) in the drip chamber 1 can be promptly collected without touching the air, so there is no clotting or residual blood.

本考案のドリップチャンバ1の概略図Schematic of the drip chamber 1 of the present invention 中央部材の断面図Cross section of central member 図1の中央部材の断面図、(a)は中央部材6のA−A´断面図、(b)は中央部材6のB−B´断面図1 is a cross-sectional view of the central member in FIG. 1, (a) is a cross-sectional view of the central member 6 along AA ′, (b) is a cross-sectional view of the central member 6 along BB ′. 本考案のドリップチャンバ1の使用状態を示す概略図、(a)は生理食塩水充填時、(b)は血液導入時、(c)は血液循環時、(d)は血液回収開始時Schematic showing the usage state of the drip chamber 1 of the present invention, (a) when filling with physiological saline, (b) when introducing blood, (c) when circulating blood, (d) when starting blood collection 図4(c)の一部拡大図Partial enlarged view of FIG.

符号の説明Explanation of symbols

1 ドリップチャンバ
2 上部筒体
3 下部筒体
4 上部キャップ
5 下部キャップ
6 中央部材
7 血液流入口
7O 開口断面
8 仕切
8U 上傾斜面
8L 下傾斜面
9 孔
11 フィルタ
12 補液ライン
13 圧力モニタライン
14 血液流出口
DESCRIPTION OF SYMBOLS 1 Drip chamber 2 Upper cylinder 3 Lower cylinder 4 Upper cap 5 Lower cap 6 Central member 7 Blood inlet 7O Open cross section 8 Partition 8U Upper inclined surface 8L Lower inclined surface 9 Hole 11 Filter 12 Fluid replacement line 13 Pressure monitor line 14 Blood Outlet

Claims (3)

略円筒状の中央部材(6)に上部筒体(2)と下部筒体(3)を装着し、
前記中央部材(6)は、略側部に血液流入口(7)を形成し、かつ当該血液流入口(7)よりも上部の内壁に、孔(9)を形成した仕切(8)を配置したことを特徴とするドリップチャンバ(1)。
Attach the upper cylinder (2) and the lower cylinder (3) to the substantially cylindrical central member (6),
The central member (6) is provided with a partition (8) in which a blood inlet (7) is formed in a substantially side portion and a hole (9) is formed in an inner wall above the blood inlet (7). A drip chamber (1) characterized in that
前記孔(9)は、前記仕切(8)の略中央に形成し、当該仕切(8)の下部は、当該仕切(8)外縁から前記孔(9)に向けて上方向へ傾斜する上傾斜面(8U)を形成したことを特徴とする請求項1記載のドリップチャンバ(1)。   The hole (9) is formed substantially at the center of the partition (8), and the lower portion of the partition (8) is inclined upward from the outer edge of the partition (8) toward the hole (9). Drip chamber (1) according to claim 1, characterized in that a surface (8U) is formed. 前記孔(9)は、前記仕切(8)の略中央に形成し、当該仕切(8)の上部は、当該仕切(8)外縁から前記孔(9)に向けて下方向へ傾斜する下傾斜面(8L)を形成したことを特徴とする請求項1または請求項2に記載のドリップチャンバ(1)。   The hole (9) is formed substantially at the center of the partition (8), and an upper portion of the partition (8) is inclined downward from the outer edge of the partition (8) toward the hole (9). Drip chamber (1) according to claim 1 or 2, characterized in that a surface (8L) is formed.
JP2006007513U 2006-09-15 2006-09-15 Drip chamber Expired - Lifetime JP3128724U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012524562A (en) * 2009-04-23 2012-10-18 フレゼニウス メディカル ケア ドイッチェランド ゲゼルシャフト ミット ベシュレンクテル ハフツング Air separator, external functional means, blood circuit and treatment device
US10441699B2 (en) 2015-01-23 2019-10-15 Nikkiso Company Limited Blood purification apparatus
US10610634B2 (en) 2015-05-21 2020-04-07 Nikkiso Company Limited Blood purification apparatus
US11123463B2 (en) 2015-06-24 2021-09-21 Nikkiso Company Limited Blood purification apparatus
US11278655B2 (en) 2016-01-25 2022-03-22 Nikkiso Company Limited Blood purification apparatus
US11413387B2 (en) 2016-09-23 2022-08-16 Nikkiso Company Limited Blood purification apparatus
US11690942B2 (en) 2016-09-12 2023-07-04 Nikkiso Company Limited Blood purification apparatus with a bypass line that bypasses an ultrafiltration pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012524562A (en) * 2009-04-23 2012-10-18 フレゼニウス メディカル ケア ドイッチェランド ゲゼルシャフト ミット ベシュレンクテル ハフツング Air separator, external functional means, blood circuit and treatment device
JP2017140413A (en) * 2009-04-23 2017-08-17 フレゼニウス メディカル ケア ドイッチェランド ゲゼルシャフト ミット ベシュレンクテル ハフツング External functional means, blood circuit, blood treatment apparatus, and treatment apparatus
US10441699B2 (en) 2015-01-23 2019-10-15 Nikkiso Company Limited Blood purification apparatus
US10610634B2 (en) 2015-05-21 2020-04-07 Nikkiso Company Limited Blood purification apparatus
US11123463B2 (en) 2015-06-24 2021-09-21 Nikkiso Company Limited Blood purification apparatus
US11278655B2 (en) 2016-01-25 2022-03-22 Nikkiso Company Limited Blood purification apparatus
US11690942B2 (en) 2016-09-12 2023-07-04 Nikkiso Company Limited Blood purification apparatus with a bypass line that bypasses an ultrafiltration pump
US11413387B2 (en) 2016-09-23 2022-08-16 Nikkiso Company Limited Blood purification apparatus

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