JP4325594B2 - Hemodialysis machine - Google Patents

Hemodialysis machine Download PDF

Info

Publication number
JP4325594B2
JP4325594B2 JP2005209711A JP2005209711A JP4325594B2 JP 4325594 B2 JP4325594 B2 JP 4325594B2 JP 2005209711 A JP2005209711 A JP 2005209711A JP 2005209711 A JP2005209711 A JP 2005209711A JP 4325594 B2 JP4325594 B2 JP 4325594B2
Authority
JP
Japan
Prior art keywords
blood
venous
pump
circuit
puncture needle
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
Application number
JP2005209711A
Other languages
Japanese (ja)
Other versions
JP2007020990A (en
Inventor
忠雄 塩山
英俊 斉尾
真 三橋
拓真 吉永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nipro Corp
Original Assignee
Nipro Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nipro Corp filed Critical Nipro Corp
Priority to JP2005209711A priority Critical patent/JP4325594B2/en
Publication of JP2007020990A publication Critical patent/JP2007020990A/en
Application granted granted Critical
Publication of JP4325594B2 publication Critical patent/JP4325594B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • External Artificial Organs (AREA)

Description

本発明は、血管から体外に取り出した血液を浄化し、必要ならばこれに有用物質を補給することにより、生体の臓器機能を補助あるいは代行する血液透析装置に関するもので、透析治療中に発生した静脈側穿刺針の抜けを検知する方法に関する。また、静脈側穿刺針の逸脱を検知する機構を備えた血液透析装置に関する。   The present invention relates to a hemodialysis apparatus that assists or substitutes for organ functions of a living body by purifying blood taken out of a body from a blood vessel and supplementing it with useful substances if necessary, which occurred during dialysis treatment. The present invention relates to a method for detecting the removal of a venous puncture needle. The present invention also relates to a hemodialysis apparatus provided with a mechanism for detecting the deviation of the venous puncture needle.

血液透析治療中には、血液回路内は200ml/分以上の血液が流れるため、接続部の逸脱は、思いもよらない大量出血や空気の流入などによって致命的となることがある。そして、逸脱の多くは人為的なミスが原因となって起こるため、細心の注意と対応が必要である。接続部の逸脱の内、静脈側穿刺針の抜けや血液回路との接続外れは、穿刺針と血液回路を固定するテープの不備や、患者動作による穿刺針の抜去、意識状態の悪い患者による穿刺針の自己抜去などが原因で発生する。そして、このような穿刺針の抜けに対しては、従来、固定しづらい穿刺針や部位は二重に固定する、血液回路の重さを考慮し十分な撓みを持たせて固定する、引っかけるなどの不慮に事故にも簡単に逸脱しないように血液回路をベッドサイドに布鉗子などで固定する、などの対策を行っている。
また、従来、静脈側穿刺針の逸脱が発生すると静脈圧が低下することから、静脈圧の下限設定圧力を静脈側穿刺針の逸脱発生前の静脈圧より10〜50mmHg程度低く設定しておき、静脈圧が下限設定圧力より小さくなったときに警報を発するようにした、静脈圧の下限警報設定を利用する方法も採用されている。
During hemodialysis treatment, blood of 200 ml / min or more flows in the blood circuit, and the deviation of the connection portion may be fatal due to unexpected unexpected bleeding or air inflow. Many deviations are caused by human error, so careful attention and response are required. Among the deviations of the connection part, the venous puncture needle is disconnected or disconnected from the blood circuit because of lack of a tape for fixing the puncture needle and blood circuit, removal of the puncture needle by patient movement, puncture by an unconscious patient This occurs due to self-extraction of the needle. And, for such removal of the puncture needle, conventionally, the puncture needle or part that is difficult to fix is fixed twice, fixed with sufficient deflection in consideration of the weight of the blood circuit, etc. Measures are taken such as fixing the blood circuit to the bedside with cloth forceps so that it does not easily deviate from accidents.
In addition, conventionally, when the venous puncture needle deviates, the venous pressure decreases. Therefore, the lower limit set pressure of the venous pressure is set to about 10 to 50 mmHg lower than the venous pressure before the venous puncture needle deviates, A method of using a lower limit alarm setting for venous pressure, in which an alarm is issued when the venous pressure becomes lower than the lower limit set pressure, is also employed.

しかしながら、通常、透析装置の静脈圧警報設定は自動設定モードにされており、下限警報は静脈圧値のマイナス50mmHgに設定されるケースが多い。従って、上記静脈圧の下限警報設定を利用する方法は、例えば、静脈圧が60mmHgで下限が静脈圧のマイナス50mmHgに設定されていた場合、下限警報設定値は10mmHgとなり、針抜け後の静脈圧は針の抵抗により10mmHgより下になることはないので、針抜けが発生しても警報に引っかからなくなる。この問題は、透析スタッフが意識的に下限設定を狭くすれば解消可能と思われるが、今度は、設定忘れや、警報が頻繁に鳴りすぎるという問題が発生する。
従って、種々の対策にもかかわらず、静脈側穿刺針の逸脱は少なからず発生しているのが現状であり、特に静脈側穿刺針の逸脱が発生した場合には、血液ポンプを停止して失血量を少なくするなどの迅速な対応が望まれる。
However, normally, the venous pressure alarm setting of the dialyzer is set to the automatic setting mode, and the lower limit alarm is often set to minus 50 mmHg of the venous pressure value. Accordingly, the method using the lower limit alarm setting for the venous pressure is, for example, when the venous pressure is set to 60 mmHg and the lower limit is set to minus 50 mmHg of the venous pressure, the lower limit alarm setting value is 10 mmHg. Since the needle resistance does not fall below 10 mmHg, the alarm will not be caught even if needle dropout occurs. This problem can be solved if the dialysis staff consciously narrows the lower limit setting, but this time a problem occurs that the setting is forgotten or the alarm sounds frequently.
Therefore, in spite of various measures, there is a considerable amount of deviation from the venous puncture needle. In particular, when the venous puncture needle deviates, the blood pump is stopped and blood loss occurs. Prompt response such as reducing the volume is desired.

本発明は、如上の事情に鑑みてなされたもので、静脈側穿刺針の逸脱を容易かつ迅速に検知することのできる血液透析装置を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an object thereof is to provide a hemodialysis apparatus that can easily and quickly detect the deviation of a venous puncture needle.

本発明の血液透析装置は、透析器と血液回路、血液ポンプ、プライミング液供給ライン、静脈側エアートラップチャンバー、透析液回路、透析液ポンプ及び除水ポンプを含んでなる血液透析装置において、静脈側血液回路に超音波式血流計が設けられるとともに、該血流計で血液回路を流れる血液の流量が測定され、該測定血液流量が急増したときに、警報が発せられ、血液ポンプが停止されるようにされたことを特徴とする。   The hemodialysis apparatus of the present invention is a hemodialysis apparatus comprising a dialyzer, a blood circuit, a blood pump, a priming fluid supply line, a venous air trap chamber, a dialysis fluid circuit, a dialysis fluid pump, and a dewatering pump. An ultrasonic blood flow meter is provided in the blood circuit, and the flow rate of blood flowing through the blood circuit is measured by the blood flow meter. When the measured blood flow rate rapidly increases, an alarm is issued and the blood pump is stopped. It is made to be adapted.

また、本発明の静脈側穿刺針の逸脱を検知する方法は、透析器と血液回路、血液ポンプ、プライミング液供給ライン、静脈側エアートラップチャンバー、透析液回路、透析液ポンプ及び除水ポンプを含んでなる血液透析装置において、静脈側血液回路に超音波式血流計が設けられるとともに、この血流計で血液回路を流れる血液の流量が測定され、この測定血液流量が急増したときに、静脈側穿刺針の逸脱が発生したと判断することを特長とする。   Further, the method for detecting the deviation of the venous puncture needle of the present invention includes a dialyzer, a blood circuit, a blood pump, a priming fluid supply line, a venous air trap chamber, a dialysis fluid circuit, a dialysis fluid pump, and a dewatering pump. In the hemodialysis apparatus, the ultrasonic blood flow meter is provided in the venous blood circuit, and the blood flow rate flowing through the blood circuit is measured by the blood flow meter. When the measured blood flow rate rapidly increases, It is characterized in that it is determined that a deviation from the side puncture needle has occurred.

本発明によれば、以下のような効果が期待できる。すなわち、本発明の血液透析装置は、静脈側血液回路に超音波式血流計が設けられており、この血流計で測定される血液流量が急増したときに静脈側穿刺針の逸脱が発生したと判断されるようになっているので、静脈側穿刺針の逸脱を容易かつ迅速に検知でき、また、静脈側穿刺針の逸脱が発生したと判断されると、即座に警報が発せられ、血液ポンプが停止されるようになっているので、患者の失血量を少なくすることができる。   According to the present invention, the following effects can be expected. That is, in the hemodialysis apparatus of the present invention, an ultrasonic blood flow meter is provided in the venous blood circuit, and when the blood flow measured by the blood flow meter increases rapidly, the venous puncture needle deviates. Therefore, the deviation of the venous puncture needle can be detected easily and quickly, and when it is determined that the deviation of the venous puncture needle has occurred, an alarm is immediately issued, Since the blood pump is stopped, the patient's blood loss can be reduced.

静脈側血液回路に静脈側穿刺針に近接して超音波式血流計を設け、この血流計で血液回路を流れる血液の流量が測定されるようにし、測定血液流量が急に大きくなったときに、警報が発せられ、血液ポンプが停止されるようにする。   An ultrasonic blood flow meter was installed in the venous blood circuit close to the venous puncture needle so that the flow rate of blood flowing through the blood circuit was measured with this blood flow meter, and the measured blood flow rate suddenly increased Occasionally, an alarm is issued and the blood pump is turned off.

先ず、実施例1について図1を用いて説明する。
図1は実施例1の血液透析装置の概略説明図である。
実施例1の血液透析装置は、図1に示すように、透析器1と血液回路2(21、22)、血液ポンプ3、プライミング液供給ライン4、静脈側エアートラップチャンバー23、透析液回路5(51、52)、透析液ポンプ6及び除水ポンプ7を含んでなる。そして、静脈側血液回路22には、超音波式血流計8が設けられており、この血流計8で静脈側血液回路22の血流量が測定され、この測定血液流量が急増したときに、警報が発せられ、血液ポンプ3が停止されるようになっている。
血液回路2は透析器1より上流側の動脈側血液回路21と透析器1より下流側の静脈側血液回路22からなる。動脈側血液回路21には、血液ポンプ3の上流でプライミング液供給ライン4が接続されており(血液ポンプ3より下流にプライミング液供給ライン4を設ける場合もある)、静脈側血液回路22には透析器1に近接してエアートラップチャンバー23が設けられており、このエアートラップチャンバー23の下流には気泡センサー24と超音波式血流計8がこの順序で設けられている。但し、気泡センサー24と超音波式血流計8の順序が逆になっていても構わない。プライミング液供給ライン4は、これが血液ポンプ3より上流に設けられた場合、開閉弁V1を開くと、血液ポンプ3の駆動により、プライミング液容器41から血液循環回路(動脈側血液回路21、透析器1、静脈側血液回路22からなる)にプライミング液が供給されるようになっている。
透析液回路5は透析器1より上流側の透析液供給回路51と透析器1より下流側の排液回路52からなる。透析液供給回路51には透析液供給ライン(図示していない)が接続されており、透析液は、排液回路52に設けられた透析液ポンプ6の駆動により、透析液供給ラインから透析器1に供給され、使用済透析液として透析器1から排出されるようになっている。また、排液回路52には除水ポンプ7も設けられており、除水ポンプ7の駆動により血液中の余分な水分が除水され、透析器1から排出されるようになっている。
First, Example 1 will be described with reference to FIG.
FIG. 1 is a schematic explanatory view of a hemodialysis apparatus of Example 1.
As shown in FIG. 1, the hemodialysis apparatus of Example 1 includes a dialyzer 1 and a blood circuit 2 (21, 22), a blood pump 3, a priming solution supply line 4, a venous air trap chamber 23, and a dialysate circuit 5. (51, 52), comprising a dialysate pump 6 and a dewatering pump 7. The venous blood circuit 22 is provided with an ultrasonic blood flow meter 8. When the blood flow in the venous blood circuit 22 is measured by the blood flow meter 8, and the measured blood flow rate rapidly increases. An alarm is issued and the blood pump 3 is stopped.
The blood circuit 2 includes an arterial blood circuit 21 upstream from the dialyzer 1 and a venous blood circuit 22 downstream from the dialyzer 1. A priming fluid supply line 4 is connected to the arterial blood circuit 21 upstream of the blood pump 3 (the priming fluid supply line 4 may be provided downstream of the blood pump 3). An air trap chamber 23 is provided close to the dialyzer 1, and a bubble sensor 24 and an ultrasonic blood flow meter 8 are provided in this order downstream of the air trap chamber 23. However, the order of the bubble sensor 24 and the ultrasonic blood flow meter 8 may be reversed. When the on-off valve V1 is opened when the priming liquid supply line 4 is provided upstream from the blood pump 3, the blood pump 3 is driven to drive the blood circulation circuit (arterial blood circuit 21, dialyzer). 1 and consisting of the venous blood circuit 22).
The dialysate circuit 5 includes a dialysate supply circuit 51 upstream of the dialyzer 1 and a drain circuit 52 downstream of the dialyzer 1. A dialysate supply line (not shown) is connected to the dialysate supply circuit 51, and the dialysate is supplied from the dialysate supply line to the dialyzer by driving the dialysate pump 6 provided in the drain circuit 52. 1 is discharged from the dialyzer 1 as used dialysate. Further, the drainage circuit 52 is also provided with a water removal pump 7, and excess water in the blood is removed by the drive of the water removal pump 7 and discharged from the dialyzer 1.

血液ポンプ3を駆動すると、静脈側穿刺針25が逸脱した場合、急に測定血液流量が大きくなるので、静脈側穿刺針の逸脱が発生したと判断され、例えばブザーなどにより警報が発せられ、血液ポンプ3が自動的に停止される。この場合、針抜けに対しては静脈側穿刺針25を刺し直す必要がある。また、血液回路22からの接続外れに対しては接続し直す必要がある。   When the blood pump 3 is driven, if the venous puncture needle 25 deviates, the measured blood flow rate suddenly increases. Therefore, it is determined that the venous puncture needle has deviated. For example, an alarm is issued by a buzzer or the like. The pump 3 is automatically stopped. In this case, it is necessary to repierce the venous puncture needle 25 for needle removal. Further, it is necessary to reconnect to disconnection from the blood circuit 22.

〔静脈側穿刺針の逸脱試験〕
患者の内シャント圧を再現するためバッグを高い位置に吊し、その中に擬似血液(D−ソルビット、ポリビニルピロリドン、水を5:3:92の割合で混合した溶液)を入れ、バッグの穿刺ポートに動脈側穿刺針を穿刺する。そこから擬似血液を血液回路、ダイアライザに充填させ、その後、静脈側穿刺針をバッグの穿刺ポートに穿刺し、この状態で、血液ポンプの血液流量をそれぞれ50ml/分、100ml/分、150ml/分200ml/分、250ml/分に設定し、各ポンプ流量の場合について、擬似血液を循環させながら、透析状態で1分間運転する。その後、静脈側穿刺針を静脈側針穿刺部から抜いて、抜針した状態で1分間運転を継続し、静脈側穿刺針を逸脱させたときの擬似血液流量の変化を測定したところ、図2〜図6のような結果が得られた。但し、擬似血液の設定温度は31℃であり、抜針後の静脈側穿刺針は病院のベッドの位置と同じ床から650mmの位置に置いた。
図2から、静脈側穿刺針に逸脱が発生すると、血液流量が急増することが判る。
[Via puncture needle deviation test]
In order to reproduce the patient's internal shunt pressure, the bag is hung at a high position, and pseudo blood (a solution in which D-sorbit, polyvinylpyrrolidone, and water are mixed at a ratio of 5: 3: 92) is placed therein, and the bag is punctured. The port is punctured with an arterial puncture needle. From there, pseudo blood is filled into the blood circuit and dialyzer, and then the venous puncture needle is punctured into the puncture port of the bag, and in this state, the blood flow rate of the blood pump is 50 ml / min, 100 ml / min, and 150 ml / min, respectively. Set to 200 ml / min, 250 ml / min, and for each pump flow rate, run for 1 minute in a dialysis state while circulating simulated blood. Thereafter, the vein-side puncture needle was removed from the vein-side needle puncture section, and the operation was continued for 1 minute with the needle removed, and the change in the simulated blood flow rate when the vein-side puncture needle was deviated was measured. Results as shown in FIG. 6 were obtained. However, the set temperature of the simulated blood was 31 ° C., and the venous puncture needle after withdrawal was placed at a position 650 mm from the same floor as the hospital bed.
It can be seen from FIG. 2 that when the venous puncture needle deviates, the blood flow rate increases rapidly.

本発明の血液透析装置の実施例1を示す概略説明図である。It is a schematic explanatory drawing which shows Example 1 of the hemodialysis apparatus of this invention. 静脈側穿刺針の逸脱試験の結果を示す図である(ポンプ流量50ml/分)。It is a figure which shows the result of the deviation test of a venous side puncture needle (pump flow rate 50ml / min). 静脈側穿刺針の逸脱試験の結果を示す図である(ポンプ流量100ml/分)。It is a figure which shows the result of the deviation test of a venous puncture needle (pump flow rate of 100 ml / min). 静脈側穿刺針の逸脱試験の結果を示す図である(ポンプ流量150ml/分)。It is a figure which shows the result of the deviation test of the venous side puncture needle (pump flow rate 150ml / min). 静脈側穿刺針の逸脱試験の結果を示す図である(ポンプ流量200ml/分)。It is a figure which shows the result of the deviation test of the venous puncture needle (pump flow rate 200ml / min). 静脈側穿刺針の逸脱試験の結果を示す図である(ポンプ流量250ml/分)。It is a figure which shows the result of the deviation test of a vein side puncture needle (pump flow rate 250ml / min).

符号の説明Explanation of symbols

1 透析器
2 血液回路
21 動脈側血液回路
22 静脈側血液回路
23 エアートラップチャンバー
24 気泡センサー
25 静脈側穿刺針
3 血液ポンプ
4 プライミング液供給ライン
41 プライミング液容器
5 透析液回路
51 透析液供給回路
52 排液回路
6 透析液ポンプ
7 除水ポンプ
8 超音波式血流計
V1 開閉弁
DESCRIPTION OF SYMBOLS 1 Dialyzer 2 Blood circuit 21 Arterial side blood circuit 22 Venous side blood circuit 23 Air trap chamber 24 Bubble sensor 25 Venous side puncture needle 3 Blood pump 4 Priming liquid supply line 41 Priming liquid container 5 Dialysing liquid circuit 51 Dialysing liquid supply circuit 52 Drainage circuit 6 Dialysate pump 7 Dewatering pump 8 Ultrasonic blood flow meter V1 On-off valve

Claims (1)

透析器と血液回路、血液ポンプ、プライミング液供給ライン、静脈側エアートラップチャンバー、透析液回路、透析液ポンプ及び除水ポンプを含んでなる血液透析装置において、該静脈側エアートラップチャンバーと静脈側穿刺針との間の静脈側血液回路に超音波式血流計が設けられるとともに、該血流計で血液回路を流れる血液の流量が測定され、該測定血液流量が急増したときに、警報が発せられ、血液ポンプが停止されるようにされてなる血液透析装置。 A hemodialysis apparatus comprising a dialyzer, a blood circuit, a blood pump, a priming fluid supply line, a venous air trap chamber, a dialysis fluid circuit, a dialysate pump, and a dewatering pump, wherein the venous air trap chamber and the venous puncture An ultrasonic blood flow meter is provided in the venous blood circuit between the needle and the blood flow through the blood circuit is measured by the blood flow meter, and an alarm is issued when the measured blood flow rapidly increases. A hemodialysis apparatus in which the blood pump is stopped.
JP2005209711A 2005-07-20 2005-07-20 Hemodialysis machine Expired - Fee Related JP4325594B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005209711A JP4325594B2 (en) 2005-07-20 2005-07-20 Hemodialysis machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005209711A JP4325594B2 (en) 2005-07-20 2005-07-20 Hemodialysis machine

Publications (2)

Publication Number Publication Date
JP2007020990A JP2007020990A (en) 2007-02-01
JP4325594B2 true JP4325594B2 (en) 2009-09-02

Family

ID=37782518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005209711A Expired - Fee Related JP4325594B2 (en) 2005-07-20 2005-07-20 Hemodialysis machine

Country Status (1)

Country Link
JP (1) JP4325594B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009060668A1 (en) * 2009-12-28 2011-06-30 Fresenius Medical Care Deutschland GmbH, 61352 Apparatus and method for monitoring extracorporeal blood treatment
DE102010007914A1 (en) * 2010-02-12 2012-12-27 Fresenius Medical Care Deutschland Gmbh Apparatus and method for monitoring vascular access for extracorporeal blood treatment
WO2018235963A1 (en) 2017-06-22 2018-12-27 ニプロ株式会社 Blood purification device
JP7153612B2 (en) * 2018-06-29 2022-10-14 株式会社アドバンス Percutaneous terminal for hemodialysis

Also Published As

Publication number Publication date
JP2007020990A (en) 2007-02-01

Similar Documents

Publication Publication Date Title
JP4281835B2 (en) Hemodialysis machine
JP6478393B2 (en) Blood purification apparatus and priming method thereof
US7959593B2 (en) Blood purification apparatus and method for evaluating connection conditions of needles
Misra The basics of hemodialysis equipment
JP4267917B2 (en) Diafiltration module
TWI450738B (en) Blood-purifying device
JP5125013B2 (en) Method for detecting occurrence of trouble causing poor blood removal and hemodialysis apparatus
US8388567B2 (en) Apparatus for extracorporeal blood treatment
JP5247864B2 (en) Blood purification equipment
JP4290106B2 (en) Blood purification equipment
JP2006198141A (en) Abnormality detecting system in blood extracorporeal circulation apparatus
KR20150058239A (en) Device and method for detecting the recirculation during an extracorporeal blood treatment
US20220080093A1 (en) Simultaneous ecmo and crrt
JP2010136841A (en) Blood purifying apparatus
JP2003265599A (en) Hemocatharsis system
JP2019511284A (en) Method and system for detecting an obstruction in the blood circuit of a dialysis system
JP4325594B2 (en) Hemodialysis machine
US20190201609A1 (en) Blood purification apparatus
JP4854374B2 (en) Extracorporeal circulation device, extracorporeal circulation circuit, method for confirming connection state of pressure measurement line and pressure measurement means
JP2007282928A5 (en)
JP2005218709A (en) Method for detecting connection failure of circuit in blood purification device
CN107485742A (en) The pipeline preliminary filling control method of blood purification system and the blood purification system
JP2010136745A (en) Blood purifying apparatus
JP5276909B2 (en) Blood purification equipment
US11992595B2 (en) Extracorporeal blood treatment apparatus and method for monitoring pressures in an extracorporeal blood treatment apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080228

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090310

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090414

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090519

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090601

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120619

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4325594

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150619

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees