JP4324181B2 - Egg cryopreservation tool - Google Patents

Egg cryopreservation tool Download PDF

Info

Publication number
JP4324181B2
JP4324181B2 JP2006163921A JP2006163921A JP4324181B2 JP 4324181 B2 JP4324181 B2 JP 4324181B2 JP 2006163921 A JP2006163921 A JP 2006163921A JP 2006163921 A JP2006163921 A JP 2006163921A JP 4324181 B2 JP4324181 B2 JP 4324181B2
Authority
JP
Japan
Prior art keywords
egg
holding strip
cylindrical member
liquid nitrogen
main body
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 - Lifetime
Application number
JP2006163921A
Other languages
Japanese (ja)
Other versions
JP2006271395A (en
Inventor
太 井上
保 井上
Original Assignee
株式会社北里サプライ
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37206730&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP4324181(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 株式会社北里サプライ filed Critical 株式会社北里サプライ
Priority to JP2006163921A priority Critical patent/JP4324181B2/en
Publication of JP2006271395A publication Critical patent/JP2006271395A/en
Application granted granted Critical
Publication of JP4324181B2 publication Critical patent/JP4324181B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

本発明は、哺乳動物の卵子、胚などの卵を凍結保存する際に使用する卵凍結保存用具に関する。   The present invention relates to an egg cryopreservation device for use in cryopreserving eggs such as mammalian eggs and embryos.

哺乳動物胚の凍結保存は、特定の系統や品種の遺伝資源の保存を可能とする。また、絶滅の危機に瀕している動物種の維持にも有効である。さらに、ヒトの不妊治療においても有用である。
哺乳動物胚の凍結保存方法としては、特開2000−189155公報(特許文献1)において、哺乳動物胚または卵子を滅菌処理した凍結ストロー、凍結バイアルまたは凍結チューブ等の凍結保存用容器の内面に、これらの胚または卵子を包被するに充分な最少量のガラス化液で貼り付け、この凍結保存用容器を密封し、そしてこの容器を液体窒素に接触させて急速に冷却することが提案されている。そして、融解方法では、前記の方法で保存した凍結保存用容器を前記液体窒素から取り出し、容器の一端部を開口し、この容器内に33〜39℃の希釈液を直接注入し、胚または卵子の凍結を融解希釈するものである。この方法によれば、哺乳動物胚または卵子をウイルスや細菌による感染のおそれがなく高い生存率で保存および融解希釈することのできるという優れた効果を備えている。
The cryopreservation of mammalian embryos allows the preservation of genetic resources of specific strains and varieties. It is also effective in maintaining endangered animal species. Furthermore, it is useful in the treatment of human infertility.
As a cryopreservation method of a mammalian embryo, in JP 2000-189155 A (Patent Document 1), on the inner surface of a cryopreservation container such as a frozen straw, a cryovial or a freezing tube in which a mammalian embryo or egg is sterilized, It has been proposed to paste with a minimum amount of vitrification solution sufficient to encapsulate these embryos or eggs, seal the cryopreservation container, and quickly cool the container by contacting it with liquid nitrogen. Yes. In the thawing method, the cryopreservation container stored by the above method is taken out from the liquid nitrogen, one end of the container is opened, and a diluted solution of 33 to 39 ° C. is directly injected into the container, and an embryo or egg Thaw and dilute the freeze. This method has an excellent effect that mammalian embryos or ova can be stored and melt-diluted with a high survival rate without the risk of infection by viruses or bacteria.

特開2000−189155公報JP 2000-189155 A

しかし、凍結ストロー、凍結バイアルまたは凍結チューブ等の凍結保存用容器の内面に、胚または卵子などの卵を包被するに充分な最少量のガラス化液で貼り付ける作業が必ずしも容易ではなかった。
そこで、本発明の目的は、卵の凍結保存作業を確実かつ容易に行うことができる卵凍結保存用具を提供するものである。
However, it is not always easy to attach a vitrification solution with a minimum amount sufficient to encapsulate an egg such as an embryo or egg onto the inner surface of a cryopreservation container such as a freezing straw, a freezing vial or a freezing tube.
Therefore, an object of the present invention is to provide an egg cryopreservation tool that can reliably and easily perform an egg cryopreservation operation.

上記の目的を達成するものは、以下のものである。
(1)液体窒素耐性材料により形成された本体部と、液体窒素耐性材料により形成され可撓性かつ無色透明な平坦フィルム状となっている卵付着保持用ストリップと、該卵付着保持用ストリップを被包可能に前記本体部に着脱自在に取り付けられる一端が封鎖され、かつ液体窒素耐性材料により形成された筒状部材とからなる卵凍結保存用具であって、前記本体部は、前記卵付着保持用ストリップの一端を保持するとともに、前記筒状部材の他端内に侵入し係合する円柱状部を備えている卵凍結保存用具。
(2)液体窒素耐性材料により形成された本体部と、液体窒素耐性材料により形成された卵付着保持用ストリップと、該卵付着保持用ストリップを被包可能に前記本体部に着脱自在に取り付けられる一端が封鎖され、かつ液体窒素耐性材料により形成された筒状部材とからなる卵凍結保存用具であって、該卵凍結保存用具は、顕微鏡下において、該卵凍結保存用具の前記卵付着保持用ストリップの先端部に卵子を少量のガラス化液とともに付着させ、卵子が付着したストリップ部分を液体窒素に浸漬し凍結させるためのものであり、前記卵付着保持用ストリップは、可撓性かつ無色透明な平坦フィルム状となっており、さらに、前記卵凍結保存用具の前記本体部は、前記卵付着保持用ストリップの一端を保持するとともに、前記筒状部材の他端内に侵入し係合する円柱状部を備えている卵凍結保存用具。
(3) 前記卵付着保持用ストリップは、幅が0.5〜2.0mm、厚さが0.01〜0.4mmである(1)または(2)に記載の卵凍結保存用具。
(4) 前記卵付着保持用ストリップの形成材料、3−フッ化ポリエチレン、低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、ポリカーボネート、ナイロン、ポリスルホン、ポリエステル、ポリスチレン、ポリイミド、超高分子量ポリエチレン、エチレン−酢酸ビニル共重合体のいずれかである(1)ないし(3)のいずれかに記載の卵凍結保存用具。
(5) 前記筒状部材は、前記卵付着保持用ストリップに接触することなく被包できる内径および長さを備えている請求項(1)ないし(4)のいずれかに記載の卵凍結保存用具。
What achieves the above object is as follows.
(1) A main body portion formed of a liquid nitrogen resistant material, an egg adhesion holding strip formed of a liquid nitrogen resistant material, which is a flexible, colorless and transparent flat film, and the egg adhesion holding strip An egg cryopreservation tool comprising a cylindrical member formed of a liquid nitrogen-resistant material sealed at one end and detachably attached to the main body so as to be encapsulated. An egg cryopreservation tool comprising a cylindrical portion that holds one end of the strip and enters and engages the other end of the tubular member.
(2) A main body formed of a liquid nitrogen resistant material, an egg adhesion holding strip formed of a liquid nitrogen resistant material, and the egg adhesion holding strip are detachably attached to the main body so as to be encapsulated. An egg cryopreservation tool comprising one end sealed and a cylindrical member formed of a liquid nitrogen resistant material, the egg cryopreservation tool for holding the egg attached to the egg cryopreservation tool under a microscope The egg is attached to the tip of the strip together with a small amount of vitrification solution, and the strip part to which the egg is attached is immersed in liquid nitrogen and frozen, and the egg attachment holding strip is flexible, colorless and transparent Further, the main body portion of the egg cryopreservation device holds one end of the egg adhesion holding strip, and other than the cylindrical member. Egg cryopreservation tool has a cylindrical portion which engages penetrate within.
(3) The egg cryopreservation tool according to (1) or (2), wherein the egg adhesion holding strip has a width of 0.5 to 2.0 mm and a thickness of 0.01 to 0.4 mm.
(4) Material for forming the egg adhesion holding strip, 3-fluorinated polyethylene, low density polyethylene, medium density polyethylene, high density polyethylene, polycarbonate, nylon, polysulfone, polyester, polystyrene, polyimide, ultrahigh molecular weight polyethylene, ethylene The egg cryopreservation device according to any one of (1) to (3), which is any one of vinyl acetate copolymers.
(5) The egg cryopreservation device according to any one of (1) to (4), wherein the cylindrical member has an inner diameter and a length that can be encapsulated without contacting the egg attachment and holding strip. .

本発明の卵凍結保存用具は、卵付着保持用ストリップを備えることにより、卵子もしくは胚などの卵をガラス化液と共に付着保持することが容易であり、さらに、卵の液体窒素への浸漬作業も容易に行うことができる。   The egg cryopreservation tool of the present invention is provided with an egg adhesion holding strip, so that an egg such as an egg or embryo can be easily adhered and held together with a vitrification solution, and further, the egg can be immersed in liquid nitrogen. It can be done easily.

本発明の卵凍結保存用具を図面に示す実施例を用いて説明する。
図1は、本発明の実施例の卵凍結保存用具の正面図である。
図2は、図1に示した卵凍結用保存用具の筒状部材を本体部材より離脱させた状態の正面図である。図3は、図2に示した卵凍結用保存用具の本体部材の側面図である。図4は、図1に示した卵凍結保存用具の本体部材の先端部分および筒状部材の拡大正面図である。図5は、図1に示した卵凍結保存用具の本体部材の先端部分および筒状部材の拡大断面図である。
The egg cryopreservation device of the present invention will be described with reference to the embodiments shown in the drawings.
FIG. 1 is a front view of an egg cryopreservation tool according to an embodiment of the present invention.
FIG. 2 is a front view of the egg freezing preservation tool shown in FIG. 1 in a state where the cylindrical member is detached from the main body member. FIG. 3 is a side view of the main body member of the egg freezing preservation tool shown in FIG. 2. FIG. 4 is an enlarged front view of the distal end portion of the main body member and the cylindrical member of the egg cryopreservation tool shown in FIG. FIG. 5 is an enlarged cross-sectional view of the distal end portion of the main body member and the cylindrical member of the egg cryopreservation tool shown in FIG.

本発明の卵凍結保存用具1は、液体窒素耐性材料により形成された本体部2と、液体窒素耐性材料により形成された卵付着保持用ストリップ3と、卵付着保持用ストリップ3を被包可能に本体部2に着脱自在に取り付けられる一端が封鎖され、かつ液体窒素耐性材料により形成された筒状部材4とからなる。卵付着保持用ストリップ3は、可撓性かつ無色透明な平坦フィルム状となっており、本体部2は、卵付着保持用ストリップ3の一端を保持するとともに、筒状部材4の他端内に侵入し係合する円柱状部5を備えている。
またこの卵凍結保存用具1は、耐寒性材料により形成された本体部2と、本体部2の一端に取り付けられ、可撓性かつ透明性かつ液体窒素耐性材料により形成された卵付着保持用ストリップ3と、卵付着保持用ストリップ3を被包可能に本体部2に着脱自在に取り付けられる一端が封鎖され、かつ耐寒性材料により形成された筒状部材4とからなるものである。
本発明の卵凍結保存用具は、卵ガラス化保存用具、卵子または胚凍結保存用具、卵子または胚ガラス化保存用具と言い換えることができる。
本発明の卵凍結保存用具は、卵凍結保存用具本体部材10と、これに着脱自在に取り付けられる筒状部材4とからなる。なお、筒状部材4を設けず、卵凍結保存用具本体部材10を単独としても卵凍結保存用具として使用することもできる。
卵凍結保存用具本体部材10は、耐寒性材料により形成された本体部2と、本体部2の一端に取り付けられ、可撓性かつ透明性かつ液体窒素耐性材料により形成された卵付着保持用ストリップ3とからなる。
The egg cryopreservation tool 1 of the present invention can encapsulate a main body 2 formed of a liquid nitrogen resistant material, an egg adhesion holding strip 3 formed of a liquid nitrogen resistant material, and an egg adhesion holding strip 3. One end removably attached to the main body portion 2 is sealed, and includes a cylindrical member 4 formed of a liquid nitrogen resistant material. The egg adhesion holding strip 3 has a flexible, colorless and transparent flat film shape, and the main body 2 holds one end of the egg adhesion holding strip 3 and the other end of the cylindrical member 4. It has a cylindrical portion 5 that enters and engages.
The egg cryopreservation tool 1 includes a main body 2 formed of a cold resistant material, and an egg adhesion holding strip attached to one end of the main body 2 and formed of a flexible, transparent and liquid nitrogen resistant material. 3 and a cylindrical member 4 formed of a cold-resistant material and sealed at one end, which is detachably attached to the main body 2 so as to encapsulate the egg attachment holding strip 3.
The egg cryopreservation device of the present invention can be restated as an egg vitrification storage device, an egg or embryo cryopreservation device, an egg or embryo vitrification storage device.
The egg cryopreservation tool of the present invention comprises an egg cryopreservation tool body member 10 and a cylindrical member 4 that is detachably attached to the egg cryopreservation tool body member 10. In addition, the cylindrical member 4 is not provided, and the egg cryopreservation tool body member 10 can be used alone or as an egg cryopreservation tool.
The egg cryopreservation tool main body member 10 includes a main body portion 2 formed of a cold-resistant material, and a strip for attaching and holding an egg attached to one end of the main body portion 2 and formed of a flexible, transparent, liquid nitrogen-resistant material. It consists of three.

この実施例の卵凍結保存用具本体部材10では、本体部2は、細長い平板状本体部となっている。本体部の長さとしては、50〜200mm程度が好適である。また、平板状本体部の場合の幅としては、3〜10mm程度が好適であり、厚さは、1〜3mm程度が好適である。そして、本体部材10は、卵付着保持用ストリップ3の一端を保持するとともに筒状部材4の他端内に侵入し係合する円柱状部5を備えている。この円柱状部は、先端に向かってテーパー状に若干縮径している。円柱状部の外径としては、0.5〜3mm程度が好適である。そして、円柱状部5の先端には、図5に示すように、卵付着保持用ストリップ3の一端を収納するための軸方向に延びる凹部が形成されている。
本体部2は、ポリエステル(例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート)、ポリオレフィン(例えば、ポリエチレン、超高分子量ポリエチレン、ポリプロピレン、エチレン−プロピレン共重合体、エチレン−酢酸ビニル共重合体)、スチレン系樹脂(例えば、ポリスチレン、メタクリレート−スチレン共重合体、メタクリレート−ブチレン−スチレン共重合体)、ポリアミド(例えば、6ナイロン,66ナイロン)、ポリサルホン、フッ素樹脂、ポリイミド等の耐寒性樹脂が使用され、特に、液体窒素の温度に耐え得るものが好ましい。
In the egg cryopreservation tool main body member 10 of this embodiment, the main body 2 is an elongated flat plate-shaped main body. The length of the main body is preferably about 50 to 200 mm. Moreover, as a width | variety in the case of a plate-shaped main-body part, about 3-10 mm is suitable, and about 1-3 mm is suitable for thickness. The main body member 10 includes a columnar portion 5 that holds one end of the egg attachment holding strip 3 and enters and engages the other end of the cylindrical member 4. The cylindrical portion is slightly reduced in diameter in a tapered shape toward the tip. The outer diameter of the columnar part is preferably about 0.5 to 3 mm. And the recessed part extended in the axial direction for accommodating the end of the strip 3 for egg adhesion holding | maintenance is formed in the front-end | tip of the cylindrical part 5 as shown in FIG.
The main body 2 is made of polyester (for example, polyethylene terephthalate, polybutylene terephthalate), polyolefin (for example, polyethylene, ultrahigh molecular weight polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer), styrene resin ( For example, cold-resistant resins such as polystyrene, methacrylate-styrene copolymer, methacrylate-butylene-styrene copolymer), polyamide (for example, 6 nylon, 66 nylon), polysulfone, fluororesin, polyimide, etc. are used. Those capable of withstanding the temperature of nitrogen are preferred.

卵付着保持用ストリップ3は、可撓性かつ透明性かつ液体窒素耐性材料により形成されており、この実施例では、細長い平坦フィルム状のものとなっている。ストリップ3は、卵付着作業を容易にするために、可撓性かつ無色透明な平坦フィルム状のものが用いられている。卵付着保持用ストリップ3の露出する部分の長さは、10〜30mm程度、幅0.5〜2.0mm程度、厚さが0.01〜0.4mm程度のものが用いられる。
そして、卵付着保持用ストリップ3は、他端部(基端部)が、上述した本体部2の凹部に収納され、接着剤により本体部2に固着されている。
卵付着保持用ストリップ3の形成材料としては、例えば、3−フッ化ポリエチレン、低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、ポリカーボネート、ナイロン、ポリスルホン、ポリエステル、ポリスチレン、ポリイミド、超高分子量ポリエチレン、エチレン−酢酸ビニル共重合体などの合成樹脂からなるフィルムあるいはそれらの積層体が挙げられる。特に、液体窒素耐性材料、言い換えれば、液体窒素に接触しても脆化しないものが使用される。
The egg adhesion holding strip 3 is formed of a flexible, transparent and liquid nitrogen resistant material. In this embodiment, the strip 3 is in the form of an elongated flat film. The strip 3 is a flat film that is flexible and colorless and transparent in order to facilitate the egg attachment work. The length of the exposed portion of the egg attachment holding strip 3 is about 10 to 30 mm, the width is about 0.5 to 2.0 mm, and the thickness is about 0.01 to 0.4 mm.
And the other end part (base end part) of the strip 3 for egg adhesion holding | maintenance is accommodated in the recessed part of the main-body part 2 mentioned above, and it adheres to the main-body part 2 with the adhesive agent.
Examples of the material for forming the egg attachment holding strip 3 include 3-fluorinated polyethylene, low density polyethylene, medium density polyethylene, high density polyethylene, polycarbonate, nylon, polysulfone, polyester, polystyrene, polyimide, ultrahigh molecular weight polyethylene, and ethylene. -A film made of a synthetic resin such as vinyl acetate copolymer or a laminate thereof. In particular, a liquid nitrogen resistant material, in other words, a material that does not become brittle when in contact with liquid nitrogen is used.

筒状部材4は、卵付着保持用ストリップ3を被包可能に本体部2に着脱自在に取り付けられる一端が封鎖され、かつ耐寒性材料により形成されたものである。特に、この実施例の筒状部材4は、一端側内部に挿入された綿状体12により通気可能に封止されており、他端部がテーパー状に拡径するテーパー部となっている。そして、筒状部材4内に収納された綿状体12は接着剤13により固定されている。
筒状部材4は、卵付着保持用ストリップ3に接触することなく被包できる内径および長さを備えている。そして、筒状部材4がテーパー部を備えることにより、ストリップ3の筒状部材内への挿入を容易にしているとともに、本体部2の円柱状部分の筒状部材内への侵入も容易なものとしている。
筒状部材4の形成材料としては、例えば、3−フッ化ポリエチレン、低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、ポリカーボネート、ナイロン、ポリスルホン、ポリエステル、ポリスチレン、ポリイミド、超高分子量ポリエチレン、エチレン−酢酸ビニル共重合体などの合成樹脂からなるフィルムあるいはそれらの積層体が挙げられる。特に、液体窒素耐性材料、言い換えれば、液体窒素に接触しても脆化しないものが好ましい。
The cylindrical member 4 is formed of a cold-resistant material and sealed at one end, which is detachably attached to the main body 2 so that the egg attachment holding strip 3 can be encapsulated. In particular, the tubular member 4 of this embodiment is sealed so as to be ventilated by a cotton-like body 12 inserted inside one end side, and the other end portion is a tapered portion whose diameter is increased in a tapered shape. And the cotton-like body 12 accommodated in the cylindrical member 4 is fixed by an adhesive 13.
The cylindrical member 4 has an inner diameter and a length that can be encapsulated without contacting the egg attachment holding strip 3. The cylindrical member 4 is provided with a tapered portion, so that the strip 3 can be easily inserted into the cylindrical member, and the cylindrical portion of the main body 2 can easily enter the cylindrical member. It is said.
As a forming material of the cylindrical member 4, for example, 3-fluorinated polyethylene, low density polyethylene, medium density polyethylene, high density polyethylene, polycarbonate, nylon, polysulfone, polyester, polystyrene, polyimide, ultrahigh molecular weight polyethylene, ethylene-acetic acid Examples thereof include a film made of a synthetic resin such as a vinyl copolymer or a laminate thereof. In particular, a liquid nitrogen resistant material, in other words, a material that does not become brittle when it comes into contact with liquid nitrogen is preferable.

次に、筒状部材保持器具について図面に示した実施例を用いて説明する。
図6は、筒状部材保持器具の正面図である。図7は、図6に示した筒状部材保持器具の解放状態の先端部分拡大図である。
筒状部材保持器具20は、先端側に挟持部25,26を備え、後端側に把持部23,24を備える2つの保持部材21,22からなり、2つの保持部材21,22の挟持部25,26と把持部23,24間において回動自在に軸支された鋏鉗子状の筒状部材保持器具である。そして、2つの保持部材21,22の向かい合う挟持部25,26には、細径の筒状部材を実質的に潰すことなく保持するための向かい合う一組の凹部31,32が形成されている。
この筒状部材保持器具は、上述した卵凍結保存用具の筒状部材4を保持するために有効に使用される。
Next, a cylindrical member holding device will be described using an embodiment shown in the drawings.
FIG. 6 is a front view of the cylindrical member holding device. FIG. 7 is a partially enlarged view of the distal end portion of the cylindrical member holding device shown in FIG. 6 in a released state.
The cylindrical member holding device 20 includes two holding members 21 and 22 each having a holding portion 25 and 26 on the front end side and gripping portions 23 and 24 on the rear end side, and the holding portion between the two holding members 21 and 22. This is a scissors-like cylindrical member holding device that is pivotally supported between 25 and 26 and the gripping portions 23 and 24. The opposing holding portions 25 and 26 of the two holding members 21 and 22 are formed with a pair of opposing recesses 31 and 32 for holding the small-diameter cylindrical member without being substantially crushed.
This cylindrical member holding device is effectively used for holding the cylindrical member 4 of the egg cryopreservation tool described above.

筒状部材保持器具20は、2つの保持部材21,22からなり、それらは、ほぼ左右対称なものとなっている。保持部材21は、先端側に挟持部25を後端側に把持部23を備えている。同様に、保持部材22は、先端側に挟持部26を後端側に把持部24を備えている。挟持部25,26には、向かい合う刃部27,28と、挟持部25,26の先端部に設けられた向かい合う一対の凹部31,32を備えている。また、2つの保持部材21,22は、挟持部25,26と把持部23,24間において、軸29により回動自在に軸支されている。そして、凹部31,32は、筒状部材保持器具20の上記凹部31,32部分において、筒状部材4を挟持したとき、細径の筒状部材を実質的に潰すことなく保持できる大きさに形成されている。具体的には、凹部31,32により構成される円状開口部の内径が保持する筒状部材の外径より若干小さくなるように形成されている。   The cylindrical member holding device 20 includes two holding members 21 and 22, which are substantially symmetrical. The holding member 21 includes a clamping part 25 on the front end side and a gripping part 23 on the rear end side. Similarly, the holding member 22 includes a clamping part 26 on the front end side and a gripping part 24 on the rear end side. The sandwiching portions 25 and 26 are provided with facing blade portions 27 and 28 and a pair of facing recesses 31 and 32 provided at the tip portions of the sandwiching portions 25 and 26. The two holding members 21 and 22 are pivotally supported by a shaft 29 between the holding portions 25 and 26 and the gripping portions 23 and 24. And the recessed parts 31 and 32 are the magnitude | sizes which can hold | maintain, without crushing a small diameter cylindrical member, when the cylindrical member 4 is clamped in the said recessed part 31 and 32 part of the cylindrical member holding instrument 20. FIG. Is formed. Specifically, it is formed so that the inner diameter of the circular opening constituted by the recesses 31 and 32 is slightly smaller than the outer diameter of the cylindrical member held.

さらに、筒状部材保持器具は、図6および図8に示すように、筒状部材を保持した状態を維持するための2つの保持部材21,22に設けられた保持状態維持機構35,36を備えている。具体的には、2つの保持部材21,22の把持部23,24付近より他方の保持部材方向に延びる平板状突起部35,36を備えており、この平板状突起部の接触する内面には、図8に示すように、断面鋸刃状の段階的係合可能部が形成されている。このため、筒状部材保持器具20の凹部部分において筒状部材を挟持した状態において、保持部材21,22の把持部23,24を近接する方向に押すと、保持状態維持機構35,36の断面鋸刃状部分が係合し、その状態を維持するようになっている。このため、この筒状部材保持器具20では、筒状部材を保持状態の維持に特別な力を加えている必要がなく、筒状部材4をストリップ3を被包し、かつ、本体部2に取り付ける操作が容易である。また、保持状態維持機構35,36の係合は、横方向、言い換えれば、図8の上下方向に、2つの保持部材21,22を広げることにより解除することができる。
筒状部材保持器具は、ステンレス鋼、チタン合金などの金属により作製される。
Furthermore, as shown in FIGS. 6 and 8, the cylindrical member holding device includes holding state maintaining mechanisms 35 and 36 provided on the two holding members 21 and 22 for maintaining the state of holding the cylindrical member. I have. Specifically, plate-like protrusions 35 and 36 extending in the direction of the other holding member from the vicinity of the holding parts 23 and 24 of the two holding members 21 and 22 are provided. As shown in FIG. 8, a stepwise engageable portion having a sawtooth cross section is formed. For this reason, in a state where the cylindrical member is clamped in the recessed portion of the cylindrical member holding device 20, when the gripping portions 23, 24 of the holding members 21, 22 are pushed in the approaching direction, the cross sections of the holding state maintaining mechanisms 35, 36 The saw blade portion is engaged and maintained in that state. For this reason, in this cylindrical member holding device 20, it is not necessary to apply a special force to maintain the cylindrical member in the holding state, and the cylindrical member 4 is encapsulated with the strip 3, and Installation is easy. Further, the engagement of the holding state maintaining mechanisms 35 and 36 can be released by spreading the two holding members 21 and 22 in the horizontal direction, in other words, in the vertical direction in FIG.
The cylindrical member holding device is made of a metal such as stainless steel or titanium alloy.

次に、本発明の卵凍結保存用具1および筒状部材保持器具20の使用方法について説明する。
この説明では、卵子を凍結保存する場合を例に取り説明する。
まず、ピペットの先端に卵子を採取し、卵子の細胞内液を平衡液に置換する作業を行い、さらに、細胞外液をガラス化液に置換する作業を行う。そして、顕微鏡下において、本発明の卵凍結保存用具1の卵付着保持用ストリップ3の先端部に卵子を少量のガラス化液とともに付着させ、卵子が付着したストリップ部分をあらかじめ準備しておいた液体窒素に浸漬し凍結(ガラス化)させる。そして、あらかじめ準備してある筒状部材4を保持しその状態が維持されている筒状部材保持器具を用いて、筒状部材4を本体部材10に取り付け、筒状部材保持器具を取り外した後、収納容器(ケーン)内に、ガラス化した卵子を付着保持する卵凍結保存用具を収納した後、収納容器を液体窒素タンク内に入れ保存する。
Next, the usage method of the egg cryopreservation tool 1 and the cylindrical member holding device 20 of the present invention will be described.
In this description, the case where an egg is stored frozen will be described as an example.
First, an ovum is collected at the tip of the pipette, an operation of replacing the ovum's intracellular solution with an equilibrium solution, and an operation of replacing the extracellular solution with a vitrification solution. Then, under the microscope, the ovum is attached to the tip of the egg adhesion holding strip 3 of the egg cryopreservation tool 1 of the present invention together with a small amount of vitrification solution, and the strip portion to which the ovum has adhered is prepared in advance. Immerse in nitrogen and freeze (vitrify). And after attaching the cylindrical member 4 to the main body member 10 using the cylindrical member holding fixture which hold | maintains the cylindrical member 4 prepared beforehand and the state is maintained, and after removing the cylindrical member holding fixture After storing the egg cryopreservation tool for adhering and holding the vitrified ovum in the storage container (cane), the storage container is stored in a liquid nitrogen tank.

図1は、本発明の実施例の卵凍結保存用具の正面図である。FIG. 1 is a front view of an egg cryopreservation tool according to an embodiment of the present invention. 図2は、図1に示した卵凍結用保存用具の筒状部材を本体部材より離脱させた状態の正面図である。FIG. 2 is a front view of the egg freezing preservation tool shown in FIG. 1 in a state where the cylindrical member is detached from the main body member. 図3は、図2に示した卵凍結用保存用具の本体部材の側面図である。FIG. 3 is a side view of the main body member of the egg freezing preservation tool shown in FIG. 2. 図4は、図1に示した卵凍結保存用具の本体部材の先端部分および筒状部材の拡大正面図である。FIG. 4 is an enlarged front view of the distal end portion of the main body member and the cylindrical member of the egg cryopreservation tool shown in FIG. 図5は、図1に示した卵凍結保存用具の本体部材の先端部分および筒状部材の拡大断面図である。FIG. 5 is an enlarged cross-sectional view of the distal end portion of the main body member and the cylindrical member of the egg cryopreservation tool shown in FIG. 図6は、筒状部材保持器具の正面図である。FIG. 6 is a front view of the cylindrical member holding device. 図7は、図6に示した筒状部材保持器具の解放状態の先端部分拡大図である。FIG. 7 is a partially enlarged view of the distal end portion of the cylindrical member holding device shown in FIG. 6 in a released state. 図8は、筒状部材保持器具の保持状態維持機構を説明するための説明図である。FIG. 8 is an explanatory diagram for explaining a holding state maintaining mechanism of the cylindrical member holding device.

符号の説明Explanation of symbols

1 卵凍結保存用具
2 本体部
3 卵付着保持用ストリップ
4 筒状部材

DESCRIPTION OF SYMBOLS 1 Egg cryopreservation tool 2 Body part 3 Egg adhesion holding strip 4 Tubular member

Claims (5)

液体窒素耐性材料により形成された本体部と、液体窒素耐性材料により形成された卵付着保持用ストリップと、該卵付着保持用ストリップを被包可能に前記本体部に着脱自在に取り付けられる一端が封鎖され、かつ液体窒素耐性材料により形成された筒状部材とからなる卵凍結保存用具であって、前記卵付着保持用ストリップは、可撓性かつ無色透明な平坦フィルム状となっており、前記本体部は、前記卵付着保持用ストリップの一端を保持するとともに、前記筒状部材の他端内に侵入し係合する円柱状部を備えていることを特徴とする卵凍結保存用具。 A main body formed of a liquid nitrogen resistant material, an egg adhesion holding strip formed of a liquid nitrogen resistant material, and one end removably attached to the main body so as to encapsulate the egg adhesion holding strip And an egg cryopreservation tool comprising a cylindrical member made of a liquid nitrogen resistant material, wherein the egg attachment holding strip is a flexible, colorless and transparent flat film, The part is provided with a columnar part that holds one end of the egg adhesion holding strip and enters and engages the other end of the cylindrical member. 液体窒素耐性材料により形成された本体部と、液体窒素耐性材料により形成された卵付着保持用ストリップと、該卵付着保持用ストリップを被包可能に前記本体部に着脱自在に取り付けられる一端が封鎖され、かつ液体窒素耐性材料により形成された筒状部材とからなる卵凍結保存用具であって、該卵凍結保存用具は、顕微鏡下において、該卵凍結保存用具の前記卵付着保持用ストリップの先端部に卵子を少量のガラス化液とともに付着させ、卵子が付着したストリップ部分を液体窒素に浸漬し凍結させるためのものであり、前記卵付着保持用ストリップは、可撓性かつ無色透明な平坦フィルム状となっており、前記本体部は、前記卵付着保持用ストリップの一端を保持するとともに、前記筒状部材の他端内に侵入し係合する円柱状部を備えていることを特徴とする卵凍結保存用具。 A main body formed of a liquid nitrogen resistant material, an egg adhesion holding strip formed of a liquid nitrogen resistant material, and one end removably attached to the main body so as to encapsulate the egg adhesion holding strip And an egg cryopreservation tool comprising a cylindrical member formed of a liquid nitrogen resistant material, wherein the egg cryopreservation tool is a tip of the egg adhesion holding strip of the egg cryopreservation tool under a microscope. An egg is attached to a part together with a small amount of vitrification solution, and the strip part to which the egg is attached is immersed in liquid nitrogen and frozen, and the egg attachment holding strip is a flexible, colorless and transparent flat film The main body portion includes a cylindrical portion that holds one end of the egg attachment holding strip and enters and engages with the other end of the cylindrical member. Egg cryopreservation tool, characterized in that there. 前記卵付着保持用ストリップは、幅が0.5〜2.0mm、厚さが0.01〜0.4mmである請求項1または2に記載の卵凍結保存用具。 The egg cryopreservation device according to claim 1 or 2, wherein the egg adhesion holding strip has a width of 0.5 to 2.0 mm and a thickness of 0.01 to 0.4 mm. 前記卵付着保持用ストリップの形成材料は、3−フッ化ポリエチレン、低密度ポリエチレン、中密度ポリエチレン、高密度ポリエチレン、ポリカーボネート、ナイロン、ポリスルホン、ポリエステル、ポリスチレン、ポリイミド、超高分子量ポリエチレン、エチレン−酢酸ビニル共重合体のいずれかである請求項1ないし3のいずれかに記載の卵凍結保存用具。 The material for forming the egg adhesion holding strip is 3-fluorinated polyethylene, low density polyethylene, medium density polyethylene, high density polyethylene, polycarbonate, nylon, polysulfone, polyester, polystyrene, polyimide, ultra high molecular weight polyethylene, ethylene-vinyl acetate. The egg cryopreservation device according to any one of claims 1 to 3, which is a copolymer. 前記筒状部材は、前記卵付着保持用ストリップに接触することなく被包できる内径および長さを備えている請求項1ないし4のいずれかに記載の卵凍結保存用具。 The egg cryopreservation device according to any one of claims 1 to 4, wherein the cylindrical member has an inner diameter and a length that can be encapsulated without contacting the egg adhesion holding strip.
JP2006163921A 2006-06-13 2006-06-13 Egg cryopreservation tool Expired - Lifetime JP4324181B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006163921A JP4324181B2 (en) 2006-06-13 2006-06-13 Egg cryopreservation tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006163921A JP4324181B2 (en) 2006-06-13 2006-06-13 Egg cryopreservation tool

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2001120225A Division JP4373025B2 (en) 2001-04-18 2001-04-18 Egg cryopreservation tool and cylindrical member holding device

Publications (2)

Publication Number Publication Date
JP2006271395A JP2006271395A (en) 2006-10-12
JP4324181B2 true JP4324181B2 (en) 2009-09-02

Family

ID=37206730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006163921A Expired - Lifetime JP4324181B2 (en) 2006-06-13 2006-06-13 Egg cryopreservation tool

Country Status (1)

Country Link
JP (1) JP4324181B2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014185457A1 (en) 2013-05-16 2014-11-20 三菱製紙株式会社 Vitrification-cryopreservation implement for cells or tissues
WO2015064380A1 (en) 2013-10-29 2015-05-07 学校法人北里研究所 Tool for vitrifying cryopreservation of cells or tissue
JP6124845B2 (en) 2014-06-30 2017-05-10 三菱製紙株式会社 Jig for cryopreserving vitrification of cells or tissues
US10624335B2 (en) 2014-10-23 2020-04-21 Mitsubishi Paper Mills Limited Tool for cryopreservation of cell or tissue and cryopreservation method
EP3386297A1 (en) 2015-12-07 2018-10-17 CooperSurgical, Inc. Low temperature specimen carriers and related methods
JP6954728B2 (en) * 2016-09-13 2021-10-27 株式会社77Kc Cryopreservation container
JP2018082677A (en) * 2016-11-25 2018-05-31 正成 桑山 Egg cryopreservation container
KR102288612B1 (en) 2017-06-12 2021-08-11 미쓰비시 세이시 가부시키가이샤 Jig for cryopreservation of cells or tissues
US20220361483A1 (en) 2019-06-12 2022-11-17 Mitsubishi Paper Mills Limited Fixture of cryopreservation jig and freezing and thawing method using said fixture
JP7144380B2 (en) 2019-08-23 2022-09-29 三菱製紙株式会社 Jigs for cryopreservation of cells or tissues
JP2021114962A (en) * 2020-01-28 2021-08-10 三菱製紙株式会社 Wrapping member
KR102487654B1 (en) 2020-12-02 2023-01-12 대한민국 Tool for vitrification preservation of porcine oocyte and method of vitrification preservation of porcine oocyte using the same

Also Published As

Publication number Publication date
JP2006271395A (en) 2006-10-12

Similar Documents

Publication Publication Date Title
JP4324181B2 (en) Egg cryopreservation tool
JP4373025B2 (en) Egg cryopreservation tool and cylindrical member holding device
JP5278978B2 (en) Tubular for vitrification preservation of animal embryos or eggs
US20150044765A1 (en) Cell cryopreservation tool
EP3196290B1 (en) Tool for cryopreserving collected biological tissue, and method for cryopreserving tissue fragment
WO2013051520A1 (en) Living cell cryopreservation tool
US9538747B2 (en) Living cell cryopreservation tool
JP7108318B2 (en) Biological cell cryopreservation device and biological cell cryopreservation device
WO2015115313A1 (en) Jig for use in cell or tissue vitrification cryopreservation
JP2015142523A (en) Vitrification freezing preservation tool for cell or tissue
JP5935313B2 (en) Cryopreservation equipment
WO2020250766A1 (en) Fixture of cryopreservation jig and freezing and thawing method using said fixture
JP2007261973A (en) Vitrifying preservation instrument for embryo, and method for vitrifying preservation of embryo
JP7163207B2 (en) Jigs for Vitrification Cryopreservation of Cells or Tissues
WO2021039330A1 (en) Jig for cell or tissue cryopreservation
JP3173617U (en) Cell freezing tool
JP2021151209A (en) Freezing preservation work auxiliary jig
JP7093280B2 (en) Jig for cryopreservation of cells or tissues
JP7133514B2 (en) Cell or tissue freeze-thaw method
JP4498260B2 (en) Method for sealing vitrification tools
JP7341847B2 (en) Fixture for cryopreservation jig
JP7471836B2 (en) Fixture for cryopreservation jig
JP7082039B2 (en) Jig for cryopreservation of cells or tissues
JP2020130018A (en) Jig for vitrification cryopreservation of cells or tissues
JP2021114969A (en) Freezing preservation utensil

Legal Events

Date Code Title Description
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: 20090602

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: 20090605

R150 Certificate of patent or registration of utility model

Ref document number: 4324181

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

Free format text: PAYMENT UNTIL: 20120612

Year of fee payment: 3

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

Free format text: PAYMENT UNTIL: 20120612

Year of fee payment: 3

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313113

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

Free format text: PAYMENT UNTIL: 20120612

Year of fee payment: 3

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

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

Free format text: PAYMENT UNTIL: 20120612

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

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

Free format text: PAYMENT UNTIL: 20130612

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

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

Free format text: PAYMENT UNTIL: 20140612

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term