JP2004219276A - Filter for sampling/preserving implement for urine specimen - Google Patents

Filter for sampling/preserving implement for urine specimen Download PDF

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Publication number
JP2004219276A
JP2004219276A JP2003007637A JP2003007637A JP2004219276A JP 2004219276 A JP2004219276 A JP 2004219276A JP 2003007637 A JP2003007637 A JP 2003007637A JP 2003007637 A JP2003007637 A JP 2003007637A JP 2004219276 A JP2004219276 A JP 2004219276A
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Japan
Prior art keywords
filter
urine sample
urine
pore size
sample
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JP2003007637A
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Japanese (ja)
Inventor
Noriaki Kunimune
国宗  範彰
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KUNIMUNE KK
Kunimune Co Ltd
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KUNIMUNE KK
Kunimune Co Ltd
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Priority to JP2003007637A priority Critical patent/JP2004219276A/en
Publication of JP2004219276A publication Critical patent/JP2004219276A/en
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  • Sampling And Sample Adjustment (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter for a sampling/preserving apparatus for urine specimens hardly causing clogging and capable of smoothly filtering the urine specimen even when various particulate substances are contained in the urine specimens. <P>SOLUTION: The filter comprises a membrane filter with an asymmetric pore size wherein a filter pore size of a urine specimen inflow side 10a is larger than a filter pore size of a urine specimen outflow side 10b. Specifically, the filter pore size of the urine specimen inflow side 10a is 1-50μm, and the filter pore size of the urine specimen outflow side 10b is made 0.05-0.2μm. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、臨床診断分野の尿検査において、尿検体を採取して保存するのに使用される尿検体の採取・保存器具に用いられるろ過フィルター関にするものである。
【0002】
【従来の技術】
尿検査は、被験者に対して検体採取時の負担を与えずに測定することができるため、外来初診時及び集団検診時でのスクリーニング検査や経過観察の日常検査等において広く用いられている。
【0003】
被験者から採取した尿検体は、内因性あるいは外因性の細菌や、酸素及び光等により比較的短時間で変性するため、採取後3〜4時間以内に測定するのが好ましいとされている。尿検体を採取後3〜4時間以上放置する場合は、密閉状態で冷蔵あるいは冷凍状態で保存する必要があり、集団検診などにおける大量の尿検体を検査する際には、一般的に冷蔵あるいは冷凍保存し、検査時に尿検体を常温状態に戻した後に測定を行う。
【0004】
上記尿検体は、内因性あるいは外因性の細菌により、外気中にそのまま放置しておくことで細菌が繁殖し、尿検体中の成分が変化してしまうことがある。さらに、尿検体中には酸素や光に対して不安定な成分が存在するため、外気中に放置することで正確な測定ができなくなることがある。特に、集団検診のように大量の尿検体を測定する場合、短時間内で測定を行うために測定者及び測定装置を常駐、常置させるか、尿検体を冷蔵あるいは冷凍状態で密栓保管し、測定時に解凍するといった非効率的な選択をする必要が生じる。また、測定手段を所有しない地域あるいは施設で採取された尿検体は、必然的に冷蔵あるいは冷凍状態で密栓保管するだけでなく、測定できる施設へ輸送する際にも、その状態を維持するといった非経済的な輸送方法が必要となってくる。
【0005】
そのため、採取した尿検体を常温状態で数日間保存しても、尿検体中の成分が変化することなく、正確な測定が行えると共に、集団検診の際にも採取した尿検体を冷蔵あるいは冷凍などの処理を施すことなく、簡便に輸送して検査することが可能な尿検体の採取・保存器具が、本発明者等によって発明されている。
【0006】
本発明者等によって発明された尿検体の採取・保存器具は、図7、8に示したように、尿検体のろ過フィルター21を保持したフィルターホルダー22と、栓体23によって減圧密封された尿検体の回収容器24とからなる。フィルターホルダー22は、ろ過フィルター21を保持する空間Sを有し、上部の検体送り出し側には外筒22aを設けたものとし、この外筒22a内に空間Sに連通する注射針25を設けたものとし、さらに下部の検体取り込み側には空間Sに連通する検体吸引管26を設けたものとしている。空間Sに検体吸引管26を連通するには、空間Sを下方から密閉するようにした蓋27の連通孔27aに検体吸引管26を連通したものとしている。そして、フィルターホルダー22の外筒22a内に、回収容器24を栓体23側から挿入可能としたものとしている。
【0007】
このような尿検体の採取・保存器具において、前記ろ過フィルター21は、蛋白質等の尿中被検成分の吸着性が低いセルロースアセテートやポリスルホン或いはポリエーテルスルホン等を材質とし、孔径は細菌を通さず検体をスムーズにろ過できるように0.05μm〜0.2μmであるのが好ましいとしている(特許文献1参照)。
【0008】
【特許文献1】
特開2002−311021号公報(第2頁右欄〜第3頁左欄、図1、
図2)
【0009】
【発明が解決しようとする課題】
上記従来の尿検体の採取・保存器具に使用するろ過フィルター21では、孔径は細菌を通さず検体をスムーズにろ過できるように0.05μm〜0.2μmであるのが好ましいとしているが、そのろ過フィルターの厚さ方向(尿検体流入側から尿検体流出側への方向)に同じ大きさの孔径を有するものとしているため、尿検体の種類によっては、例えば糖尿病疾患等の各種患者や高齢者などの尿検体などには様々な粒子物質が含まれており、目詰まりを起こし易く尿検体をスムーズにろ過することができなという問題点を有していた。
【0010】
そこで、この発明は、上記従来の問題点を解決することをその課題としており、尿検体に様々な粒子物質が含まれていたとしても、目詰まりを起こし難く尿検体をスムーズにろ過することができる尿検体の採取・保存器具用ろ過フィルターを提供することを目的としたなされたものである。
【0011】
【課題を解決するための手段】
そのため、この発明の尿検体の採取・保存器具用ろ過フィルターは、尿検体流入側10aのフィルター孔径を尿検体流出側10bのフィルター孔径より大きくした非対称孔径のメンブレンフィルターからなるものとしている。
【0012】
すなわち、この発明の尿検体の採取・保存器具用ろ過フィルターは、尿検体流入側10aのフィルター孔径を1〜50μm、尿検体流出側10bのフィルター孔径を0.05〜0.2μmにしたものとしている。
【0013】
そして、この発明の尿検体の採取・保存器具用ろ過フィルターは、前記尿検体の採取・保存器具が、容器ホルダー1の下方にカバ−体2を連結してなる尿検体の採取ホルダー3と、栓体4によって減圧密閉された尿検体の容器5とからなり、容器ホルダー1の筒体6内には、前記空間Sに連通する注射針11を設けたものとし、カバ−体2の基部8の下方には、空間Sに連通する検体吸引管12を設けたものとしている。
【0014】
【発明の実施の形態】
以下、この発明の実施形態を、図面に基づいて詳細に説明する。
【0015】
先ず、図1〜3はこの発明のろ過フィルターが用いられる尿検体の採取・保存器具を示しており、尿検体を変性させずに長時間保存することを可能にしており、回収容器ホルダー1の下方にフィルターホルダー2を連結した尿検体の採取ホルダー3と、栓体4によって減圧密閉された尿検体の回収容器5とからなるものとしている。
【0016】
前記回収容器ホルダー1は、筒体6の下方に筒状部7を設けたものとし、フィルターホルダー2は、基体8の上方に筒状部9を設けたものとし、この回収容器ホルダー1の筒体6内に、回収容器5を栓体4側から挿入可能としている。
【0017】
そして、前記筒状部7と筒状部9を嵌合することによってこれらの内部に形成される空間Sに、この嵌合によって作用する力によってろ過フィルター10の外周部を押圧して、このろ過フィルター10を保持したものとしている。すなわち、前記筒状部7と筒状部9を嵌合するには、筒状部7の内周面に筒状部9の外周面が接するようにして、筒状部7に筒状部9を無理嵌めする。これによって筒状部9の筒状端9aが、ろ過フィルター10の外周部を押圧して、このろ過フィルター10が密閉された状態で空間Sに保持されるようにしている。さらに、回収容器ホルダー1の筒体6内には、前記空間Sに連通する注射針11を設けたものとし、フィルターホルダー2の基体8の下方には、空間Sに連通する検体吸引管12を設けたものとしている。
【0018】
そして、前記尿検体の採取・保存器具に用いられたこの発明のろ過フィルター10は、図4に示したように尿検体流入側10a(検体吸引管12側)のフィルター孔径を尿検体流出側10b(注射針11側)のフィルター孔径より大きくした非対称孔径のメンブレンフィルターとしている。すなわち、尿検体流入側10a(検体吸引管12側)のフィルター孔径を1〜50μm、尿検体流出側10b(注射針11側)のフィルター孔径を0.05〜0.2μmにしたものとしている。そして、前記ろ過フィルター10の材質は、蛋白質等の尿中被検成分の吸着性が低いセルロースアセテートやポリスルホン或いはポリエーテルスルホン等としたものとしている。このようなろ過フィルター10として、具体的にはミリポア社製の「ミリポアエクスプレスメンブレンフィルタ−」を挙げることができる。このミリポア社製の「ミリポアエクスプレスメンブレンフィルタ−」は、材質をポリエーテルスルホンとし、厚さを150〜200μmとしている。
【0019】
以上のように構成したこの発明のろ過フィルターを用いた尿検体の採取・保存器具は、図1、3に示したように、回収容器ホルダー1の筒体6内に回収容器5を栓体4側から注射針11の手前まで挿入した状態にする。そして、図5に示したように、採尿カップUなどに採取した尿検体に検体吸引管12を浸し、回収容器ホルダー1の筒体6内に前記回収容器5をさらに挿入し、その栓体4に注射針11を突き刺す。すると、減圧密閉された回収容器5の引圧により、採尿カップUなどに採取した尿検体は、検体吸引管12からろ過フィルター10を通り、回収容器5へ流入して回収されることになる。
【0020】
この場合、前記尿検体は、尿検体流入側10a(検体吸引管12側)のフィルター孔から尿検体流出側10b(注射針11側)のフィルター孔を通過するが、ろ過フィルター10は、尿検体流入側10aのフィルター孔の径が尿検体流出側10bのフィルター孔の径より大きいので、この尿検体流入側10aで尿検体に含まれる様々な粒子物質が捕捉されても、尿検体流入側10aのフィルター孔が閉塞され難く、尿検体流入側10aから尿検体流出側10bへの流路は確保され、目詰まりを起こし難くなる。したがって、前記尿検体は、ろ過フィルター10をスムーズに通過して、尿検体に含まれる様々な粒子物質や細菌が除去されることになる。
【0021】
さらに、図6に示したように、回収容器ホルダー1から回収容器5を外すことにより、栓体4に突き刺した注射針11を引き抜けば、前記尿検体は、回収容器5に採取・保存された状態となる。
【0022】
【発明の効果】
この発明の尿検体の採取・保存器具用ろ過フィルタ−は、以上に述べたように構成されており、尿検体に様々な粒子物質が含まれていたとしても、目詰まりを起こし難く尿検体をスムーズにろ過することができるものとなる。
【図面の簡単な説明】
【図1】この発明のろ過フィルターを用いた尿検体の採取・保存器具の斜視図である。
【図2】図1に示すこの発明のろ過フィルターを用いた尿検体の採取・保存器具の採取ホルダーの分解斜視図である。
【図3】図1に示すこの発明のろ過フィルターを用いた尿検体の採取・保存器具の断面図である。
【図4】この発明のろ過フィルターのフィルター孔径を示す模式図である。
【図5】図1に示すこの発明のろ過フィルターを用いた尿検体の採取・保存器具の使用状態を示す斜視図である。
【図6】図1に示すこの発明のろ過フィルターを用いた尿検体の採取・保存器具の使用状態を示す斜視図である。
【図7】従来のろ過フィルターを用いた尿検体の採取・保存器具の斜視図である。
【図8】従来のろ過フィルターを用いた尿検体の採取・保存器具の断面図である。
【符号の説明】
1 容器ホルダー
2 カバー体
3 採取ホルダー
4 栓体
5 容器
6 筒部
8 基部
10 ろ過フィルター
10a 尿検体流入側
10b 尿検体流出側
11 注射針
12 検体吸引管
S 空間
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a filtration filter used for a urine sample collection / storage instrument used for collecting and storing a urine sample in a urine test in the field of clinical diagnosis.
[0002]
[Prior art]
A urine test can be measured without imposing a burden on a subject at the time of sample collection, and is therefore widely used in a screening test at an outpatient initial examination and a group test, a daily test for follow-up, and the like.
[0003]
A urine sample collected from a subject is denatured in a relatively short time by endogenous or exogenous bacteria, oxygen, light, and the like, and therefore, it is considered preferable to measure the urine sample within 3 to 4 hours after collection. If a urine sample is to be left for 3-4 hours or more after collection, it must be stored in a closed or refrigerated or frozen state. After storage, the urine sample is returned to room temperature at the time of the test and the measurement is performed.
[0004]
If the urine sample is left as it is in the open air due to endogenous or exogenous bacteria, the bacteria may propagate and the components in the urine sample may change. Furthermore, since there is a component unstable to oxygen and light in the urine sample, accurate measurement may not be possible if the urine sample is left in the open air. In particular, when measuring a large amount of urine sample as in a mass examination, the measurer and the measuring device should be resident and allowed to perform the measurement within a short time, or the urine sample should be kept in a refrigerated or frozen state, and sealed. You may need to make inefficient choices, such as sometimes thawing. In addition, urine samples collected in areas or facilities that do not have measurement means must not only be kept refrigerated or frozen, but also preserved when transported to facilities where measurement is possible. Economic transportation is needed.
[0005]
Therefore, even if the collected urine sample is stored at room temperature for several days, accurate measurement can be performed without changing the components in the urine sample, and the collected urine sample is also refrigerated or frozen at the time of mass screening. The present inventors have invented a device for collecting and storing a urine sample that can be easily transported and inspected without performing the above-mentioned treatment.
[0006]
As shown in FIGS. 7 and 8, the urine sample collection and storage device invented by the present inventors includes a filter holder 22 holding a urine sample filtration filter 21 and a urine sample sealed under reduced pressure by a plug 23. And a sample collection container 24. The filter holder 22 has a space S for holding the filtration filter 21, an outer cylinder 22 a is provided on the upper side of the sample delivery side, and an injection needle 25 communicating with the space S is provided in the outer cylinder 22 a. Further, a sample aspirating tube 26 communicating with the space S is provided at the lower part of the sample taking side. In order to communicate the sample aspirating tube 26 with the space S, the sample aspirating tube 26 is communicated with a communication hole 27a of a lid 27 that seals the space S from below. The collection container 24 can be inserted into the outer cylinder 22a of the filter holder 22 from the stopper 23 side.
[0007]
In such a device for collecting and storing urine specimens, the filtration filter 21 is made of cellulose acetate, polysulfone, or polyethersulfone, which has a low adsorptivity for a test component in urine such as a protein, and has a pore size that does not pass bacteria. It is said that the thickness is preferably 0.05 μm to 0.2 μm so that the sample can be filtered smoothly (see Patent Document 1).
[0008]
[Patent Document 1]
JP-A-2002-311021 (page 2 right column to page 3 left column, FIG.
(Fig. 2)
[0009]
[Problems to be solved by the invention]
In the filtration filter 21 used for the above-mentioned conventional urine sample collection / preservation instrument, the pore size is preferably 0.05 μm to 0.2 μm so that the sample can be filtered smoothly without passing bacteria. Since the filter has the same pore size in the thickness direction of the filter (the direction from the urine sample inflow side to the urine sample outflow side), depending on the type of the urine sample, for example, various patients such as diabetic diseases and the elderly The urine sample and the like contain various particulate substances, and have a problem that clogging is likely to occur and the urine sample cannot be filtered smoothly.
[0010]
Therefore, an object of the present invention is to solve the above-described conventional problems, and even when various particulate substances are contained in a urine sample, it is possible to smoothly filter the urine sample without causing clogging. An object of the present invention is to provide a filtration filter for a device for collecting and storing urine samples which can be obtained.
[0011]
[Means for Solving the Problems]
For this reason, the filtration filter for a urine sample collection / preservation instrument of the present invention comprises a membrane filter having an asymmetric pore size in which the filter pore size on the urine sample inflow side 10a is larger than the filter pore size on the urine sample outflow side 10b.
[0012]
That is, the filtration filter for a urine sample collection / preservation instrument of the present invention has a filter pore size of 1 to 50 μm on the urine sample inflow side 10a and a filter pore size of 0.05 to 0.2 μm on the urine sample outflow side 10b. I have.
[0013]
The urine sample collection / preservation instrument filtration filter according to the present invention includes a urine sample collection / preservation instrument, wherein the urine sample collection / preservation instrument includes a urine sample collection holder 3 having a cover body 2 connected below a container holder 1; A urine sample container 5 sealed under reduced pressure by a stopper 4 is provided. An injection needle 11 communicating with the space S is provided in a cylinder 6 of the container holder 1, and a base 8 of the cover 2 is provided. Is provided below the sample suction pipe 12 communicating with the space S.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0015]
First, FIGS. 1 to 3 show a urine sample collecting and preserving instrument using the filtration filter of the present invention, which enables a urine sample to be stored for a long time without denaturation. It comprises a urine sample collection holder 3 to which a filter holder 2 is connected below, and a urine sample collection container 5 hermetically sealed by a plug 4 under reduced pressure.
[0016]
The collection container holder 1 is provided with a cylindrical portion 7 below the cylindrical body 6, and the filter holder 2 is provided with a cylindrical portion 9 above the base 8. The collection container 5 can be inserted into the body 6 from the stopper 4 side.
[0017]
The cylindrical portion 7 and the cylindrical portion 9 are fitted to each other, and the outer periphery of the filter 10 is pressed into the space S formed therein by the force acting by the fitting. It is assumed that the filter 10 is held. That is, in order to fit the tubular portion 7 and the tubular portion 9, the tubular portion 9 is attached to the tubular portion 9 so that the outer peripheral surface of the tubular portion 9 contacts the inner peripheral surface of the tubular portion 7. Is forcibly fitted. Thereby, the cylindrical end 9a of the cylindrical portion 9 presses the outer peripheral portion of the filtration filter 10 so that the filtration filter 10 is held in the space S in a sealed state. Further, an injection needle 11 communicating with the space S is provided in the cylindrical body 6 of the collection container holder 1, and a sample suction tube 12 communicating with the space S is provided below the base 8 of the filter holder 2. It has been provided.
[0018]
Then, as shown in FIG. 4, the filtration filter 10 of the present invention used in the urine sample collection / preservation instrument has a filter pore diameter on the urine sample inflow side 10a (sample suction tube 12 side) and the urine sample outflow side 10b. The membrane filter has an asymmetric pore diameter larger than the filter pore diameter of the (needle 11 side). That is, the filter hole diameter on the urine sample inflow side 10a (sample suction tube 12 side) is 1 to 50 μm, and the filter hole diameter on the urine sample outflow side 10b (injection needle 11 side) is 0.05 to 0.2 μm. The material of the filtration filter 10 is cellulose acetate, polysulfone, polyethersulfone, or the like, which has a low adsorptivity for urine test components such as proteins. Specific examples of such a filter 10 include “Millipore Express Membrane Filter” manufactured by Millipore. The “Millipore Express Membrane Filter” manufactured by Millipore has a material of polyethersulfone and a thickness of 150 to 200 μm.
[0019]
As shown in FIGS. 1 and 3, the urine sample collecting / storing device using the filtration filter of the present invention configured as described above includes a collection container 5 in a cylindrical body 6 of a collection container holder 1 and a plug 4. It is in a state of being inserted from the side to just before the injection needle 11. Then, as shown in FIG. 5, the sample suction tube 12 is immersed in a urine sample collected in a urine collection cup U or the like, and the collection container 5 is further inserted into the cylindrical body 6 of the collection container holder 1, and the plug 4 The injection needle 11 is pierced. Then, the urine sample collected in the urine collection cup U or the like flows into the collection container 5 from the sample suction tube 12 through the filtration filter 10 and is collected by the reduced pressure of the collection container 5 that is sealed under reduced pressure.
[0020]
In this case, the urine sample passes through the filter hole on the urine sample outflow side 10b (the injection needle 11 side) from the filter hole on the urine sample inflow side 10a (the sample suction tube 12 side). Since the diameter of the filter hole on the inflow side 10a is larger than the diameter of the filter hole on the urine sample outflow side 10b, even if various particulate substances contained in the urine sample are captured on the urine sample inflow side 10a, the urine sample inflow side 10a Is hardly closed, a flow path from the urine sample inflow side 10a to the urine sample outflow side 10b is secured, and clogging hardly occurs. Therefore, the urine sample passes through the filtration filter 10 smoothly, and various particulate matter and bacteria contained in the urine sample are removed.
[0021]
Further, as shown in FIG. 6, by removing the collection container 5 from the collection container holder 1 and pulling out the injection needle 11 pierced into the stopper 4, the urine sample is collected and stored in the collection container 5. State.
[0022]
【The invention's effect】
The filtration filter for a urine sample collection / preservation instrument of the present invention is configured as described above, and even if various particle substances are contained in the urine sample, the urine sample is hardly clogged and the urine sample is hardly clogged. It can be filtered smoothly.
[Brief description of the drawings]
FIG. 1 is a perspective view of an instrument for collecting and storing a urine sample using the filtration filter of the present invention.
FIG. 2 is an exploded perspective view of a collection holder of the device for collecting and storing a urine sample using the filtration filter of the present invention shown in FIG.
FIG. 3 is a cross-sectional view of a urine sample collection / preservation instrument using the filtration filter of the present invention shown in FIG.
FIG. 4 is a schematic diagram showing the filter pore size of the filtration filter of the present invention.
FIG. 5 is a perspective view showing a use state of the urine sample collection / preservation instrument using the filtration filter of the present invention shown in FIG. 1;
FIG. 6 is a perspective view showing a use state of the urine sample collecting / preserving instrument using the filtration filter of the present invention shown in FIG. 1;
FIG. 7 is a perspective view of a conventional urine sample collection and storage device using a filtration filter.
FIG. 8 is a cross-sectional view of a conventional urine sample collection and storage device using a filtration filter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container holder 2 Cover body 3 Sampling holder 4 Plug body 5 Container 6 Tube part 8 Base 10 Filtration filter 10a Urine sample inflow side 10b Urine sample outflow side 11 Injection needle 12 Sample suction tube S space

Claims (3)

尿検体流入側(10a)のフィルター孔径を尿検体流出側(10b)のフィルター孔径より大きくした非対称孔径のメンブレンフィルターからなることを特徴とする尿検体の採取・保存器具用ろ過フィルター。A filter for collecting and storing urine specimens, comprising a membrane filter having an asymmetric pore diameter in which the filter pore diameter on the urine specimen inflow side (10a) is larger than the filter pore diameter on the urine specimen outflow side (10b). 尿検体流入側(10a)のフィルター孔径を1〜50μm、尿検体流出側(10b)のフィルター孔径を0.05〜0.2μmにしたことを特徴とする請求項1記載の尿検体の採取・保存器具用ろ過フィルター。2. The urine sample collecting / collecting method according to claim 1, wherein the filter pore size on the urine sample inflow side (10a) is 1 to 50 [mu] m, and the filter pore size on the urine sample outflow side (10b) is 0.05 to 0.2 [mu] m. Filtration filter for storage equipment. 前記尿検体の採取・保存器具が、容器ホルダー(1)の下方にカバ−体(2)を連結してなる尿検体の採取ホルダー(3)と、栓体(4)によって減圧密閉された尿検体の容器(5)とからなり、容器ホルダー(1)の筒体(6)内には、前記空間(S)に連通する注射針(11)を設けたものとし、カバ−体(2)の基部(8)の下方には、空間(S)に連通する検体吸引管(12)を設けたものとしたことを特徴とする請求項1または記載の尿検体の採取・保存器具用ろ過フィルター。The urine sample collection and storage device comprises a urine sample collection holder (3) formed by connecting a cover body (2) below a container holder (1), and urine sealed under reduced pressure by a plug (4). A container (5) for the specimen, an injection needle (11) communicating with the space (S) is provided in a cylinder (6) of the container holder (1), and a cover (2). 2. A filtration filter for a urine sample collection and storage device according to claim 1, wherein a sample suction tube (12) communicating with the space (S) is provided below the base (8). .
JP2003007637A 2003-01-15 2003-01-15 Filter for sampling/preserving implement for urine specimen Pending JP2004219276A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009297643A (en) * 2008-06-12 2009-12-24 Noritake Co Ltd Filter element for filtration and filter
JP2013500478A (en) * 2009-07-30 2013-01-07 蘇州海路生物技術有限公司 Improved multi-function specimen case

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009297643A (en) * 2008-06-12 2009-12-24 Noritake Co Ltd Filter element for filtration and filter
JP2013500478A (en) * 2009-07-30 2013-01-07 蘇州海路生物技術有限公司 Improved multi-function specimen case

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