CN104841502A - Suction head and suction head pen - Google Patents
Suction head and suction head pen Download PDFInfo
- Publication number
- CN104841502A CN104841502A CN201410051447.1A CN201410051447A CN104841502A CN 104841502 A CN104841502 A CN 104841502A CN 201410051447 A CN201410051447 A CN 201410051447A CN 104841502 A CN104841502 A CN 104841502A
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- China
- Prior art keywords
- suction nozzle
- pen
- sleeve pipe
- suction head
- latex
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Abstract
The invention relates to the field of biological laboratory instruments, and mainly relates to a suction head and a suction head pen. The suction head comprises a pre drawn glass capillary, a suction head seat and a filter core, the pre drawn glass capillary mouth diameter is accurately measured, the pre drawn glass capillary tail end is inserted into a pre drawn glass capillary tail end fixing round hole on the suction head seat for tight junction, and the filter core is plugged into a filter core fixing round hole on the suction head seat for tight junction. The suction head pen comprises a pen core, a removable sleeve, a spring, a latex suction head and a pen head, the spring is assembled in the pen core thin section, a pen core cylindrical joint is forward inserted from one end of the removable sleeve, and passes out through the spring, the latex suction head and the pen core cylindrical joint are combined to form tight junction, a pen core external thread section and a pen head inner thread interface are in threaded connection, the latex suction head is placed in a latex suction head containing chamber, and the latex suction head is partially exposed to an arc gap. Through cooperative use of the suction head and the suction head pen, an accurate, environmentally friendly, safe and convenient laboratory tool for the cell and embryo related operation is provided.
Description
Technical field
The present invention relates to biology laboratory instrument field, relate generally to a kind of suction nozzle and suction nozzle pen.
Summary of the invention
Background technology
Glass pipette becomes biology laboratory, the particularly indispensable instrument of IVF laboratory cell, embryo's associative operation owing to having the advantages such as good light transmission, corrosion resistance and thermoplasticity, and wherein Pasteur's moral suction pipe, capillary glass tube are the most frequently used glass pipettes.Structure when Fig. 6 shows conventional Pasteur's moral suction pipe (61), capillary glass tube (62) uses.The tubule section of Pasteur's moral suction pipe or capillary glass tube are drawn into capillary by heating means before using temporarily, scrape disconnected by rule of thumb somewhere, by contrasting to judge that whether mouth internal diameter suitable at stereomicroscope and object of reference, operator feel suitable after put latex suction nozzle again or fixture for subsequent use.Different operating, such as shell the most suitable mouth internal diameter difference that ovum, transfer ovum, transfer blastaea, transfer biopsy cells etc. require, some operation, as shelled ovum, require very strict to mouth internal diameter, interim drawing meets Pasteur's moral suction pipe of operation requirements, capillary glass tube is wasted time and energy, often accurate not.At present, market there is Pasteur's moral suction pipe and the capillary glass tube of the various mouth internal diameters drawn, overcome the accurate not problem of interim drawing.Pasteur's moral suction pipe belongs to medical disposable material, and be one of consumptive material that IVF laboratory consumption is large, its glass weight can reach 40 times of capillary glass tube, easily causes environmental pollution, and the environmental protection more of capillary glass tube relative Pasteur's moral suction pipe.But latex suction nozzle, fixture are not single use product, belong to non-clean parts.Pasteur's moral suction pipe needs filling cotton to extrude for filtering latex suction nozzle air when using, and capillary glass tube filling cotton is very difficult, directly injects fixture during use, the risk of uncleanly fixture contamination of cells, embryo increases; And the mode adopting hand-held or tweezers capillary glass tube to be installed to fixture bothers.The plastic tips of the band filter core of being used widely at biology laboratory, because the factors such as mouth internal diameter precision is poor, wall thickness do not reach the precision required by embryo's relevant operational, is not applied in the operations such as conventional embryo's transfer.
For this reason, the invention provides a kind of be applicable to cell, embryo's associative operation mouth internal diameter accurately, environmental protection, safety, easily suction nozzle and with suction nozzle with the use of suction nozzle pen.
Technical scheme
For achieving the above object, the present invention takes following technical scheme:
A kind of suction nozzle, has and draws capillary glass tube, suction nozzle seat and filter core in advance.Pre-drawing capillary glass tube has mouth and tail end, and mouth internal diameter is accurately measured through microscope micrometer; Suction nozzle seat axis is provided with and pre-draws that capillary glass tube tail end fixes circular hole, filter core fixes circular hole and conical interface, and three is through.Pre-drawing capillary glass tube tail end inserts the pre-capillary glass tube tail end that draws and fixes circular hole formation compact siro spinning technology, and filter core is filled in filter core and fixed circular hole formation compact siro spinning technology, is assembled into suction nozzle.
A kind of suction nozzle pen, has pen core, shirks sleeve pipe, spring, latex suction nozzle and nib.Pen core is round bar shape, is provided with a conical fittings, central axis hole that thick section, thin segment, external thread section, a cylinder-shaped joint and one run through pen core axis; Shirk sleeve pipe one terminus lumen and be provided with spring retainer ring; Nib is provided with shirks sleeve pipe aimming circle cylinder chamber, internal thread interface, latex suction nozzle container cavity and arc notch; Spring assembling is at pen core thin segment, joint inserts from shirking sleeve pipe one end forward, pass through spring retainer ring, latex suction nozzle and cylinder-shaped joint fit form compact siro spinning technology, latex suction nozzle inserts nib through shirking sleeve pipe aimming circle cylinder chamber forward, and pen core external thread section is formed with written internal thread interface and is threaded, and latex suction nozzle is placed in latex suction nozzle container cavity, and part is exposed to arc notch, is assembled into suction nozzle pen.Pen core conical fittings and the conical interface of suction nozzle form plug-in type compact siro spinning technology; Spring supporting shirks sleeve pipe to be made spring retainer ring end stretch into nib to shirk sleeve pipe aimming circle cylinder chamber, pen core conical fittings stretches out shirk sleeve pipe completely, shirk sleeve pipe and displacement dorsad occurs nib, the indentation of pen core conical fittings is shirked in sleeve pipe, shirks sleeve end and does not shirk sleeve pipe aimming circle cylinder chamber completely; Nib arc notch is positioned at written latex suction nozzle container cavity section; Under suction nozzle pen state, maximum effective emptying volume of latex suction nozzle is less than pre-drawing capillary glass tube volume.
During use, according to different operating needs, choose the suction nozzle that mouth internal diameter is suitable, carry out cell, embryo's associative operation with suction nozzle on the suction nozzle pen cap, end of operation, holds and shirks sleeve pipe, promote nib to make nib and shirk sleeve pipe displacement dorsad occurs, namely suction nozzle is shirked, and removes thrust, shirks sleeve pipe and resets under the action of the spring.
Beneficial effect
1. suction nozzle of the present invention adopts and draws capillary glass tube in advance, environmental protection more;
2. the pre-drawing capillary glass tube mouth internal diameter of suction nozzle of the present invention is accurately measured through microscope micrometer, more accurately;
3. suction nozzle filter core of the present invention effectively reduces cell, the contaminated risk of embryo, safer;
4. suction nozzle of the present invention and suction nozzle pen with the use of, simple and convenient.
Below in conjunction with accompanying drawing, embodiments of the present invention are described in detail.
Accompanying drawing explanation
Fig. 1 is suction nozzle explosive view in the present invention;
Fig. 2 is cross-section of a cleaner head view in the present invention;
Fig. 3 is a suction nozzle explosive view and internal thread interface partial view in the present invention;
Fig. 4 is a suction nozzle cross section view and spring retainer ring partial view in the present invention;
Fig. 5 be in the present invention suction nozzle and suction nozzle pen coordinate after stereogram;
Fig. 6 is Pasteur's moral suction pipe and the capillary glass tube stereogram of conventional use.
Illustrate
1 suction nozzle, 11 draw capillary glass tube in advance, 111 draw capillary glass tube mouth in advance, 112 draw capillary glass tube tail end in advance, 12 suction nozzle seats, 121 draw capillary glass tube tail end in advance fixes circular hole, 122 filter cores fix circular hole, 123 conical interfaces, 13 filter cores, 2 suction nozzle pens, 21 pen cores, 211 conical fittings, 212 thick sections, 213 thin segments, 214 external thread sections, 215 cylinder-shaped joints, 216 central axis holes, 22 shirk sleeve pipe, 221 spring retainer rings, 23 springs, 24 latex suction nozzles, 25 nibs, 251 shirk sleeve pipe aimming circle cylinder chamber, 252 internal thread interfaces, 253 latex suction nozzle container cavities, 254 arc notch.
Detailed description of the invention
As shown in Figure 1, a kind of suction nozzle (1), has and draws capillary glass tube (11), suction nozzle seat (12) and filter core (13) in advance.Pre-drawing capillary glass tube (11) can adopt external diameter 1.8mm, internal diameter 1.4mm borosilicate glass capillary tube to prepare drawing on pin instrument, total length 4.5cm, there is mouth (111) and tail end (112), mouth (111) to shoulder length is 1.0cm, and mouth (111) internal diameter is accurately measured through microscope micrometer; Suction nozzle seat (12) is medical silica-gel material, and its axis is provided with and pre-draws that capillary glass tube tail end fixes circular hole (121), filter core fixes circular hole (122) and conical interface (123), and three is through; Filter core (13) is hydrophobic filter core, cylindrical.As shown in Figure 2, pre-drawing capillary glass tube tail end (112) insertion pre-drawing capillary glass tube tail end is fixed circular hole (122) and is formed compact siro spinning technology, and filter core (13) is filled in described filter core and fixed circular hole (122) formation compact siro spinning technology, is assembled into suction nozzle (1).According to action need, according to mouth (111) internal diameter size, suction nozzle (1) is classified, packs and sterilized.
As shown in Figure 3, a kind of suction nozzle pen (2), there is pen core (21), shirk sleeve pipe (22), spring (23), latex suction nozzle (24) and nib (25).Pen core (21) is made up of the hard material such as metal, plastics, round bar shape, is provided with a conical fittings (211), central axis hole (216) that thick section (212), thin segment (213), external thread section (214), a cylinder-shaped joint (215) and one run through pen core axis; Shirk sleeve pipe (22) to be made up of the hard material such as metal, plastics, cylindrical shape, internal diameter is greater than the thick section of pen core (212), and a terminus lumen is provided with spring retainer ring (221); Spring (23) external diameter is less than and shirks sleeve pipe (22) internal diameter and be greater than spring retainer ring (221) internal diameter, and its internal diameter is greater than pen core thin segment (212) external diameter and is less than the thick section of pen core (212) external diameter; Latex suction nozzle (24) adopts medical latex elastomeric material to make; Nib (25) is made up of the hard material such as metal, plastics, is provided with and shirks sleeve pipe aimming circle cylinder chamber (251), internal thread interface (252), latex suction nozzle container cavity (253) and arc notch (254).As shown in Figure 4, spring (23) is assembled in pen core thin segment (213), cylinder-shaped joint (215) inserts from shirking sleeve pipe (22) one end forward, pass through spring retainer ring (222), latex suction nozzle (24) and cylinder-shaped joint (215) fit form compact siro spinning technology, latex suction nozzle (24) inserts nib (25) through shirking sleeve pipe aimming circle cylinder chamber (251) forward, and pen core external thread section (214) is formed with written internal thread interface (252) and is threaded, and is assembled into suction nozzle pen (2).Suction nozzle pen (2) after assembling, spring (23) is limited between the thick section of pen core (212) and spring retainer ring (221), and spring (23) supports and shirks sleeve pipe (22) and make its spring retainer ring end stretch into nib to shirk sleeve pipe aimming circle cylinder chamber (251); Pen core conical fittings (211) stretches out shirk sleeve pipe (22) completely; Nib arc notch (254) is positioned at written latex suction nozzle container cavity (253) section; Latex suction nozzle (24) is placed in latex suction nozzle container cavity (253), and part is exposed to arc notch (254); Hold and shirk sleeve pipe (22), promote nib (25) to make nib (25) and shirk sleeve pipe (22) displacement dorsad occurs, pen core conical fittings (211) indentation is shirked in sleeve pipe (22), shirk sleeve pipe (22) spring retainer ring (222) end and do not shirk sleeve pipe aimming circle cylinder chamber (251) completely, remove thrust, shirk sleeve pipe (22) and reset under the effect of spring (23).In the assembled state, maximum effective emptying volume of latex suction nozzle (24) is less than and draws capillary glass tube (11) volume in advance.
According to different needs, choose the suction nozzle (1) that mouth (111) internal diameter is suitable, as shown in Figure 5, insert suction nozzle (1) conical interface (123) with suction nozzle pen (2) conical fittings (211) and form compact siro spinning technology; Use and terminate, hold and shirk sleeve pipe (22), promote nib (25) and make nib (25) and shirk sleeve pipe (22) displacement dorsad occurs, the suction nozzle (1) connected is shirked from suction nozzle pen (2), remove thrust, shirk sleeve pipe (22) and reset under the effect of spring (23).
Above-described embodiment is only exemplary, not any pro forma restriction is done to the present invention, when not departing from spirit of the present invention and principal character, the present invention still may be embodied as that other are multi-form, every technical spirit according to the present invention above-described embodiment is done any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. a suction nozzle (1), have and draw capillary glass tube (11) in advance, suction nozzle seat (12) and filter core (13), described pre-drawing capillary glass tube (11) has mouth (111) and tail end (112), described suction nozzle seat (12) axis is provided with the pre-capillary glass tube tail end that draws and fixes circular hole (121), filter core fixes circular hole (122) and conical interface (123), three is through, it is characterized in that, described pre-drawing capillary glass tube mouth (111) internal diameter is accurately measured through microscope micrometer, described tail end (112) inserts described pre-drawing capillary glass tube tail end and fixes circular hole (122) formation compact siro spinning technology, described filter core (13) is filled in described filter core and is fixed circular hole (122) formation compact siro spinning technology, be assembled into suction nozzle (1).
2. a suction nozzle pen (2), there is pen core (21), shirk sleeve pipe (22), spring (23), latex suction nozzle (24) and nib (25), described pen core (21) is round bar shape, be provided with a conical fittings (211), thick section (212), thin segment (213), external thread section (214), a cylinder-shaped joint (215) and one run through the central axis hole (216) of pen core axis, described sleeve pipe (22) terminus lumen that shirks is provided with spring retainer ring (221), described nib (25) is provided with shirks sleeve pipe aimming circle cylinder chamber (251), internal thread interface (252), latex suction nozzle container cavity (253) and arc notch (254), it is characterized in that, described spring (23) is assembled in pen core thin segment (213), described cylinder-shaped joint (215) inserts from described sleeve pipe (22) one end of shirking forward, pass through described spring retainer ring (222), described latex suction nozzle (24) and described cylinder-shaped joint (215) fit form compact siro spinning technology, described latex suction nozzle (24) is shirked sleeve pipe aimming circle cylinder chamber (251) described in warp forward and is inserted described nib (25), described pen core external thread section (214) is formed with described written internal thread interface (252) and is threaded, described latex suction nozzle (24) is placed in described latex suction nozzle container cavity (253), be assembled into suction nozzle pen (2).
3. suction nozzle pen (2) as claimed in claim 5, is characterized in that, described conical fittings (211) and described conical interface (123) form plug-in type compact siro spinning technology.
4. suction nozzle pen (2) as claimed in claim 5, is characterized in that, shirks sleeve pipe (22) and make spring retainer ring end stretch into described nib to shirk sleeve pipe aimming circle cylinder chamber (251) described in described spring (23) supports.
5. suction nozzle pen (2) as claimed in claim 5, is characterized in that, described pen core conical fittings (211) stretch out completely described in shirk sleeve pipe (22).
6. suction nozzle pen (2) as claimed in claim 5, it is characterized in that, hold and shirk sleeve pipe (22), promote described nib (25) and make nib (25) and the described sleeve pipe (22) that shirks that displacement dorsad occur, shirk in sleeve pipe (22) described in the indentation of described pen core conical fittings (211).
7. suction nozzle pen (2) as claimed in claim 5, it is characterized in that, hold and shirk sleeve pipe (22), promoting described nib (25) makes nib (25) and the described sleeve pipe (22) that shirks that displacement dorsad occur, described in shirk sleeve pipe (22) end do not shirk sleeve pipe aimming circle cylinder chamber (251) completely.
8. suction nozzle pen as claimed in claim 5, it is characterized in that, described written arc notch (254) is positioned at described written latex suction nozzle container cavity (253) section.
9. suction nozzle pen as claimed in claim 9, it is characterized in that, in the assembled state, maximum effective emptying volume of described latex suction nozzle (24) is less than described pre-drawing capillary glass tube (11) volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051447.1A CN104841502A (en) | 2014-02-16 | 2014-02-16 | Suction head and suction head pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051447.1A CN104841502A (en) | 2014-02-16 | 2014-02-16 | Suction head and suction head pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104841502A true CN104841502A (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410051447.1A Pending CN104841502A (en) | 2014-02-16 | 2014-02-16 | Suction head and suction head pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104841502A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096582A (en) * | 2017-04-28 | 2017-08-29 | 四川理工学院 | A kind of novel micro liquid-transfering gun suction nozzle |
| CN108300652A (en) * | 2018-04-18 | 2018-07-20 | 湖北华美阳光生物科技有限公司 | A kind of micro- stripping oviduct |
| CN110184173A (en) * | 2019-06-27 | 2019-08-30 | 太平洋康泰科学仪器（济南）有限公司 | A kind of micro-manipulation device |
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| CN1984717A (en) * | 2004-02-11 | 2007-06-20 | 马特里克斯技术公司 | Pipette tip mounting and ejection assembly and associated pipette tip |
| CN201603564U (en) * | 2010-01-15 | 2010-10-13 | 袁建华 | Plug core disposable transfer pipette |
| CN202173943U (en) * | 2011-07-27 | 2012-03-28 | 上海交通大学医学院附属仁济医院 | Suction head for semen pipettor |
| CN202527192U (en) * | 2012-04-19 | 2012-11-14 | 深圳市瑞沃德生命科技有限公司 | Liquid-moving device with adjustable sucker rod |
| CN203778090U (en) * | 2014-02-16 | 2014-08-20 | 彭建军 | Sucker |
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2014
- 2014-02-16 CN CN201410051447.1A patent/CN104841502A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1984717A (en) * | 2004-02-11 | 2007-06-20 | 马特里克斯技术公司 | Pipette tip mounting and ejection assembly and associated pipette tip |
| CN201603564U (en) * | 2010-01-15 | 2010-10-13 | 袁建华 | Plug core disposable transfer pipette |
| CN202173943U (en) * | 2011-07-27 | 2012-03-28 | 上海交通大学医学院附属仁济医院 | Suction head for semen pipettor |
| CN202527192U (en) * | 2012-04-19 | 2012-11-14 | 深圳市瑞沃德生命科技有限公司 | Liquid-moving device with adjustable sucker rod |
| CN203778090U (en) * | 2014-02-16 | 2014-08-20 | 彭建军 | Sucker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096582A (en) * | 2017-04-28 | 2017-08-29 | 四川理工学院 | A kind of novel micro liquid-transfering gun suction nozzle |
| CN107096582B (en) * | 2017-04-28 | 2020-02-18 | 四川理工学院 | Micro-pipette suction head |
| CN108300652A (en) * | 2018-04-18 | 2018-07-20 | 湖北华美阳光生物科技有限公司 | A kind of micro- stripping oviduct |
| CN110184173A (en) * | 2019-06-27 | 2019-08-30 | 太平洋康泰科学仪器（济南）有限公司 | A kind of micro-manipulation device |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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Application publication date: 20150819 |