CN207519501U - Freeze straw - Google Patents
Freeze straw Download PDFInfo
- Publication number
- CN207519501U CN207519501U CN201721324192.7U CN201721324192U CN207519501U CN 207519501 U CN207519501 U CN 207519501U CN 201721324192 U CN201721324192 U CN 201721324192U CN 207519501 U CN207519501 U CN 207519501U
- Authority
- CN
- China
- Prior art keywords
- slide glass
- sheath
- bar
- cylindrical
- lower beam
- 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
Links
- 239000010902 straw Substances 0.000 title claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 47
- 238000007710 freezing Methods 0.000 claims abstract description 25
- 230000008014 freezing Effects 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 4
- 210000001161 mammalian embryo Anatomy 0.000 abstract description 39
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 239000007788 liquid Substances 0.000 description 18
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- 206010011409 Cross infection Diseases 0.000 description 4
- 206010029803 Nosocomial infection Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 208000021267 infertility disease Diseases 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A kind of freezing straw, the freezing straw includes carrying bar and sheath, the load bar includes Handheld Division, cylindrical mandril, cylindrical intermediate bar, lower beam and slide glass, by bulge loop vertical connection, the front end of cylindrical mandril is connected with the rear end of cylindrical intermediate bar by fillet for the front end of Handheld Division and the rear end of cylindrical mandril；The front end of cylindrical intermediate bar is connected with the rear end of lower beam, and the front end of lower beam is connect with slide glass；The front end of lower beam connect gradually thinning from the top down with slide glass, is become narrow gradually from both sides to centre, the slide glass is arc, and the fillet, cylindrical mandril and sheath form interference fit.The beneficial effects of the utility model are reasonable designs, absorption property is good, use and preserve convenience, is pollution-free, ensure that gamete or embryo quality.
Description
Technical field
The invention belongs to the field of medical instrument technology, specifically, being related to a kind of freezing straw.
Background technology
With the increase of infertile crowd, the people for receiving embryo transfer is more and more, in open type glassization freezing
Embryo is in direct contact with liquid nitrogen so that and the noxious material in liquid nitrogen may cause potential danger to embryo, so many outer fertilizations-
Embryo transfer (IVF) laboratory freezes the main method as storage embryo, ovum, blastaea etc. using closed glassization.But
The load bar of carrying embryo is simpler and cruder with coarse at present, is such as adhered directly to the slide glass for carrying embryo on glass bar using glue,
Or glass bar burning is melted into post-tensioning flakiness, embryo is placed on it；Or embryo is carried with plastic tube, last word is plastic sheet
On put embryo, the plastic bar for then covering block or directly one thin arc of injection places embryo.
There are the defects of following aspect for the mode of carrying embryo recited above：First, slide glass is directly viscous using glue
On glass bar, during preservation, slide glass is easily fallen；Second, original load bar is newest plastic slide, and surface tension is not
Unified, embryo can be presented spherical shape or pull into flat in use, so as to be unfavorable for observing, be unfavorable for drawing embryo
The gamete or embryo liquid of surrounding, if directly freezing in this way, increases thawing time when thawing, influence embryo quality；Third, one
The embryo of number people can be placed in big liquid nitrogen bucket, and liquid nitrogen is not disposable, there can be the risk of viral cross-infection.
Application number：201610911571.X is related to a kind of freezing and carries bar, belongs to the field of medical instrument technology, the freezing
Bar is carried to include carrying bar part and sheath；The load bar part of the present invention is integrally formed, and can prevent slide glass from falling, and the slide glass designed,
Its radian can be bonded surface radian of the drop in nature by weight, keep gamete or embryo's drop three-dimensional shape, allow and match
Gamete or embryo liquid in son or embryo's drop around sample are uniformly distributed, and ensure that gamete or embryo's drop uniformly freeze；It is loaded with
The slide glass of embryo is encased in cylinder type hollow Guan Zhonghou, and under the action of steel loop, freezing, which carries bar, quickly to sink in liquid nitrogen,
Freezing is allowed to carry bar fully to contact with liquid nitrogen；Since the carrier sheet section for carrying embryo is fully located in cylinder type hollow pipe, and use
The synthetic fibers of special ratios work out the tampon to form fixed powder plug, while embryo's gas permeability is ensured, have stronger suction
Moist and resistance to acid and alkali provides good Conservation environment for embryo, effectively prevents cross-infection of the embryo in liquid nitrogen container.
Utility model content
In view of the above-mentioned problems, the technical problem to be solved is that in view of the deficiencies of the prior art, the present invention provides one kind and sets
Meter is rationally, absorption property is good, use and preserve convenient, good airproof performance and ensures the open freezing straw of embryo quality.
The technical solution of the utility model is：The freezing straw includes carrying bar and sheath；It is described load bar include Handheld Division,
Cylindrical mandril, cylindrical intermediate bar, lower beam and slide glass, for the load bar part in addition to Handheld Division 1, rest part is respectively positioned on shield
In set, the front end of Handheld Division 1 and the rear end of cylindrical mandril pass through bulge loop vertical connection, front end and the cylinder of cylindrical mandril
The rear end of intermediate bar is connected by fillet；The radius of the fillet is 0.2mm.
The front end of cylindrical intermediate bar is connected with the rear end of lower beam, and the front end of lower beam is connect with slide glass；The lower beam
Front end connect with slide glass from the top down gradually it is thinning, become narrow gradually from both sides to centre, the width and thickness of the lower beam front end
Identical with the width and thickness of slide glass, the slide glass is arc, and the length of the slide glass is 1.25mm, and the radius of slide glass is
1.5mm；The thickness of the slide glass is 0.2mm, and the fillet, cylindrical mandril and sheath form interference fit.
The sheath is cylinder type hollow pipe, and the opening of the guard leading end is outside toroidal.
The outer diameter of the cylinder mandril is more than the outer diameter of cylindrical intermediate bar, and load bar is made to be easily inserted in sheath.
The bell-mouthed outer diameter of sheath is equal to the outer diameter of bulge loop, makes load bar and sheath sealing effect more preferable.
The freezing straw further includes fiber plug and haltere, and the fiber plug and haltere are located in sheath, described flat
Weighing apparatus stick is located at the upper end of fiber plug, and the haltere is metal balance stick, and the load bar is inserted into sheath, slide glass lower end and metal
There are one section of gap between haltere, prevent metal balance stick from encountering slide glass.
The utility model has the advantages and positive effects of：
1. the present invention carries bar part and is integrally formed, slide glass and load bar connect more secured, can prevent slide glass from falling.
2. the slide glass absorption property of design is more preferable, radian can be bonded arcing surface of the drop in nature by weight
Degree keeps gamete or embryo's drop three-dimensional shape, and the gamete in gamete or embryo's drop around sample or embryo liquid is allowed uniformly to divide
Cloth ensures that gamete or embryo's drop uniformly freeze；And the gamete or embryo's drop smaller frozen.
After 3. the load bar for being loaded with embryo's drop is encased in sheath, under the action of metal balance stick, freezing carries bar can be
It is quickly kept upright in liquid nitrogen sinking, freezing is allowed to carry bar and is fully contacted with liquid nitrogen.
4. sheath upper end horn mouth designs, bar will be carried by, which facilitating, is inserted into sheath, carries the junction interference fit of bar and sheath,
Good seal performance provides good Conservation environment to gamete or embryo liquid, effectively prevents the cross-infection in liquid nitrogen container.
5. the load bar is inserted into sheath, there are one section of gap between slide glass lower end and metal balance stick, prevent metal from putting down
Weighing apparatus stick encounters slide glass, avoids direct contact with, avoids heavy metal pollution.
Description of the drawings
Fig. 1 is the structure diagram of the load bar of the utility model freezing straw；
In figure：
1st, Handheld Division 2, bulge loop 3, cylindrical mandril 4, fillet
5th, cylindrical intermediate bar 6, lower bar portion 7, slide glass
Specific embodiment
As shown in Figure 1, the freezing straw includes carrying bar and sheath；The load bar include Handheld Division 1, cylindrical mandril 3,
Cylindrical intermediate bar 5, lower beam 6 and slide glass 7, the rear end of the front end of Handheld Division 1 and cylindrical mandril 3 by 2 vertical connection of bulge loop,
The front end of cylindrical mandril 3 is connected with the rear end of cylindrical intermediate bar 5 by fillet 4；The radius of the fillet is 0.2mm；Institute
In addition to Handheld Division 1, rest part is respectively positioned in sheath the load bar part stated, and Handheld Division 1 can be set to different colours in order to area
Point.
The front end of cylindrical intermediate bar 3 is connected with the rear end of lower beam 6, and the front end of lower beam 6 is connect with the rear end of slide glass 7, institute
It is gradually thinning from the top down to state lower beam 6, is become narrow gradually from both sides to centre, width and thickness and the slide glass 7 of 6 front end of lower beam
Width it is identical with thickness, as shown in Figure 1：The front view of cylindrical intermediate bar 3 is trapezoidal.
The slide glass 7 is arc, and the length of the slide glass 7 is 1.25mm, and the radius of slide glass 7 is 1.5mm；The slide glass
7 thickness is 0.2mm, and the fillet 4, cylindrical mandril 3 and sheath form interference fit, the comparison of contact of the sheath with carrying bar
Close and firm, can be to avoid the gamete during refrigerated storage or embryo by dirt since gamete or embryo are enclosed in straw
Dye.
The sheath is cylinder type hollow pipe, and the guard leading end is open as outside toroidal, the cylinder
The outer diameter of mandril is more than the outer diameter of cylindrical intermediate bar 3, and load bar is made to be easily inserted sheath.
The bell-mouthed outer diameter of sheath is equal to the outer diameter of bulge loop 2, makes load bar and sheath sealing effect more preferable.
The freezing straw further includes fiber plug and haltere, and the fiber plug and haltere are located in sheath, described flat
Weighing apparatus stick is located at the upper end of fiber plug, and the haltere is metal balance stick, and the load bar is inserted into sheath, 7 lower end of slide glass and gold
There are one section of gap between category haltere, it can prevent metal balance stick from encountering slide glass 7.
Further, the Handheld Division 1 is cuboid, is held more convenient.
The open course of work of the utility model：It holds Handheld Division 4 and the gamete or embryo liquid frozen is taken out with slide glass 7, so
After will hold Handheld Division 4 by carry bar 2 be inserted into sheath formed be interference fitted, reach sealing state, then put into liquid nitrogen container
Storage, effectively prevents the cross-infection of the gamete frozen or embryo liquid in liquid nitrogen container.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment, it is impossible to be construed as limiting the scope of the utility model.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should all still belong within the patent covering scope of the utility model.
Claims (6)
1. a kind of freezing straw, the freezing straw includes carrying bar and sheath；It is characterized in that：It is described load bar include Handheld Division,
Cylindrical mandril, cylindrical intermediate bar, lower beam and slide glass, for the load bar part in addition to Handheld Division, rest part is respectively positioned on shield
In set, the front end of Handheld Division and the rear end of cylindrical mandril pass through bulge loop vertical connection, front end and the cylinder of cylindrical mandril
The rear end of intermediate bar is connected by fillet；The radius of the fillet is 0.2mm；The front end of cylindrical intermediate bar and the rear end of lower beam
It is connected, the front end of lower beam is connect with slide glass；The front end of lower beam connect with slide glass from the top down gradually it is thinning, from both sides to centre by
Gradual change is narrow, and the width and thickness of the lower beam front end are identical with the width and thickness of slide glass, the slide glass be arc, the load
The length of piece is 1.25mm, and the radius of slide glass is 1.5mm；The thickness of the slide glass is 0.2mm, the fillet, cylindrical mandril
It is formed and is interference fitted with sheath.
2. freezing straw according to claim 1, it is characterised in that：The sheath be cylinder type hollow pipe, the sheath
The opening of front end is outside toroidal.
3. freezing straw according to claim 1, it is characterised in that：The outer diameter of the cylinder mandril is more than in cylinder
Between bar outer diameter.
4. freezing straw according to claim 2, it is characterised in that：The bell-mouthed outer diameter of sheath is equal to the outer of bulge loop
Diameter.
5. freezing straw according to claim 1, it is characterised in that：The freezing straw further includes fiber plug and balance
Stick, the fiber plug and haltere are located in sheath, and the haltere is located at the upper end of fiber plug, and the haltere is put down for metal
Weigh stick.
6. freezing straw according to claim 5, it is characterised in that：The load bar is inserted into sheath, and slide glass is put down with metal
There is one section of gap between weighing apparatus stick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721324192.7U CN207519501U (en) | 2017-10-16 | 2017-10-16 | Freeze straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721324192.7U CN207519501U (en) | 2017-10-16 | 2017-10-16 | Freeze straw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207519501U true CN207519501U (en) | 2018-06-22 |
Family
ID=62568758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721324192.7U Expired - Fee Related CN207519501U (en) | 2017-10-16 | 2017-10-16 | Freeze straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207519501U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109430245A (en) * | 2018-11-15 | 2019-03-08 | 浙江大学 | A kind of freezing carrier device for vitrifying of one-handed performance |
| CN113615678A (en) * | 2021-06-24 | 2021-11-09 | 上海市第一妇婴保健院 | Carrier bar body, freezing carrier bar and manufacturing method of carrier bar body |
| CN113632785A (en) * | 2021-08-17 | 2021-11-12 | 武汉互创联合科技有限公司 | Freezing carrying rod and operation method thereof |
-
2017
- 2017-10-16 CN CN201721324192.7U patent/CN207519501U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109430245A (en) * | 2018-11-15 | 2019-03-08 | 浙江大学 | A kind of freezing carrier device for vitrifying of one-handed performance |
| CN113615678A (en) * | 2021-06-24 | 2021-11-09 | 上海市第一妇婴保健院 | Carrier bar body, freezing carrier bar and manufacturing method of carrier bar body |
| CN113632785A (en) * | 2021-08-17 | 2021-11-12 | 武汉互创联合科技有限公司 | Freezing carrying rod and operation method thereof |
| CN113632785B (en) * | 2021-08-17 | 2024-04-05 | 武汉互创联合科技有限公司 | Freezing carrying rod and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20181016 |