CN102526839A - Continuous micro intravenous drip instrument - Google Patents
Continuous micro intravenous drip instrument Download PDFInfo
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- CN102526839A CN102526839A CN2012100078558A CN201210007855A CN102526839A CN 102526839 A CN102526839 A CN 102526839A CN 2012100078558 A CN2012100078558 A CN 2012100078558A CN 201210007855 A CN201210007855 A CN 201210007855A CN 102526839 A CN102526839 A CN 102526839A
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- syringe
- index dial
- continuous micro
- equilibriums
- rotating unit
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Abstract
The invention relates to a liquid sampling device, and discloses a continuous micro intravenous drip instrument, which comprises a syringe and a syringe propelling mechanism. The syringe propelling mechanism comprises a barrel, a lead screw, a graduated disc and a graduated disc rotating unit, the lead screw and the graduated disc are disposed in the barrel, the graduated disc is provided with a hollow cavity, one end of the lead screw is abutted onto a push rod of the syringe, the other end of the lead screw is connected with the graduated disc rotating unit in a threaded manner, the graduated disc rotating unit rotates to drive the graduated disc to rotate, simultaneously, the lead screw moves along the axial direction of the graduated disc, and then the syringe is pushed. When the graduated disc rotates by a circle, the displacement of the lead screw moving along the axial direction of the graduated disc is 0.6mm. The lead screw is connected with the graduated disc rotating unit in the threaded manner, and propelling quantity of the syringe can be adjusted accurately. The continuous micro intravenous drip instrument is simple in structure, can be used for standard high-precision syringes, saves cost, and further comprises a positioning ring distributed equally, so that the application range of medicine propelling quantity is large.
Description
Technical field
The present invention relates to a kind of fluid sampling device, particularly relate to a kind of drop method experiment of insecticide bioassay and continuous micro-drop appearance that biochemical test is measured liquid of being used for.
Background technology
Trace drop appearance is accurate micro-giver; Can carry out dosing control to testing the required object that applies medicine accurately; Trace drop appearance be because its accurate, meticulous characteristics can be widely used in fields such as chemical industry, oil, agricultural, pesticide, forestry, ecology, in the drop method experiment of the insecticide bioassay of farming, forestry, is indispensable instrument and equipment usually.Existing drop appearance generally comprises syringe and syringe propulsion plant; The principle of this syringe propulsion plant is identical with micrometer; Come pushing syringe through rotating micrometer, the medicament that is contained in the syringe is extruded quantitatively, be used for the drop method experiment of insecticide bioassay.
Because it is higher in the experiment of the drop method of insecticide bioassay to the amount precision prescribed of medicament; And common micrometer thrust unit can not be complementary with the high accuracy syringe of standard; Need the syringe of customization separately or from the special high accuracy syringe of foreign procurement; The syringe cost is very high, has caused the experiment fees burden of medium-sized and small enterprises and institutes.
Summary of the invention
The technical problem that (one) will solve
The technical problem that the present invention will solve is how a kind of continuous micro-drop appearance that is applicable to the high accuracy syringe of standard is provided, to reduce cost.
(2) technical scheme
In order to solve the problems of the technologies described above; The present invention provides a kind of continuous micro-drop appearance; Comprise syringe and syringe propulsive mechanism, said syringe propulsive mechanism comprises cylindrical shell, be arranged on the screw mandrel of barrel and have the index dial and the index dial rotating unit of hollow chamber; One end of said screw mandrel props up the push rod of said syringe; The other end adopts with said index dial rotating unit and is threaded; Said screw mandrel axially on have the first groove guide rail, said cylindrical shell is provided with first alignment pin and props up the said first groove guide rail, with the rotation of restriction screw mandrel; Said index dial rotating unit drives index dial and rotates, and makes that simultaneously screw mandrel moves along its axis, and then promotes the push rod of said syringe.
Wherein, to rotate the displacement that a circle makes screw mandrel move along its axis be 0.6mm for said index dial.
Wherein, said index dial rotating unit comprises handwheel, is separately positioned on index dial both sides and first stop that is fixedly connected with index dial and second stop; The threaded connection place of said index dial rotating unit and said screw mandrel is arranged in first stop, and said first stop is positioned at the side near syringe, and its other end props up the inboard of said cylindrical shell; The other end of said second stop is fixedly connected with said handwheel.
Wherein, Said index dial has the locating ring of the different five equilibriums of many groups; Said locating ring carries out five equilibrium through locating hole; Said cylindrical shell is provided with second alignment pin of adjustable positions, and the bottom of said second alignment pin has flexible member, and said second alignment pin is supporting the position of said locating hole to distinguish that index dial rotates.
Wherein, said index dial has the locating ring of 5 groups of different five equilibriums.
Wherein, said locating ring is 2 five equilibriums, 5 five equilibriums, 10 five equilibriums, 20 five equilibriums or 40 five equilibriums.
Wherein, The circumference of said cylindrical shell is provided with positioning disk; Said positioning disk has through hole; Be provided with connecting rod in the said through hole, said connecting rod axially on have the second groove guide rail, the through hole of said positioning disk is provided with the rotation that the 4th alignment pin that the said second groove guide rail is complementary directly makes progress with limiting rod; One end of said connecting rod is provided with localizer, and this localizer has the pin-and-hole that is complementary with second alignment pin, and said flexible member is arranged in the pin-and-hole.
Wherein, also comprise the syringe detent mechanism, an end of said syringe detent mechanism has draw-in groove, and the other end is fixed on the cylindrical shell, and the body of said syringe is installed on the said draw-in groove.
Wherein, the position that contacts of the body of said draw-in groove and syringe is provided with liner.
Wherein, also comprise a base, said cylindrical shell is fixedly mounted on the said base.
(3) beneficial effect
A kind of continuous micro-drop appearance that technique scheme provides can accurately be regulated the push-in stroke of syringe through being threaded between screw mandrel and the index dial rotating unit, and this is simple in structure, can supply the high accuracy syringe of standard to use, and has practiced thrift cost; Further, adopt the locating ring of many five equilibriums, make that the medicament push-in stroke scope of application is bigger.
Description of drawings
Fig. 1 is the front view of the continuous micro-drop appearance of the present invention;
Fig. 2 is the side view of the continuous micro-drop appearance of the present invention;
Fig. 3 is the structural representation of screw mandrel of the present invention;
Fig. 4 is the structural representation of index dial of the present invention;
Fig. 5 is the structural representation of connecting rod of the present invention.
Wherein, 1, syringe; 2, syringe propulsive mechanism; 3, syringe detent mechanism; 4, base; 1-1, push rod; 2-10, cylindrical shell; 2-11, first alignment pin; 2-12, second alignment pin; 2-13, flexible member; 2-14, positioning disk; 2-15, connecting rod; 2-16, the second groove guide rail; 2-17, the 4th alignment pin; 2-18, localizer; 2-20, screw mandrel; 2-21, the first groove guide rail; 2-22, external screw thread; 2-30, index dial; 2-31, locating ring; 2-32, locating hole; 2-40, index dial rotating unit; 2-41, hands wheel; 2-42, first stop; 2-43, second stop; 2-50, cylinder cover; 3-1, draw-in groove; 3-2, the 3rd alignment pin; 3-3, pad.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Like Fig. 1; A kind of continuous micro-drop appearance; Comprise syringe 1 and syringe propulsive mechanism 2, this syringe propulsive mechanism 2 comprises cylindrical shell 2-10, be arranged on the inner screw mandrel 2-20 of cylindrical shell 2-10 and have the index dial 2-30 and the index dial rotating unit 2-40 of hollow chamber.The end of screw mandrel 2-20 props up the push rod 1-1 of syringe 1; The other end adopts with index dial rotating unit 2-40 and is threaded; The pitch of this screw thread can accurately be regulated; Its concrete structure is: like Fig. 3, leading screw 2-20 is provided with external screw thread 2-22, is provided with the female thread that is complementary with this external screw thread 2-22 in the index dial rotating unit 2-40.Screw mandrel 2-20 axially on have the first groove guide rail 2-21, cylindrical shell 2-10 is provided with the first alignment pin 2-11 and props up the first groove guide rail 2-21, because the existence of the first alignment pin 2-11 and the first groove guide rail 2-21 has limited the rotation that screw mandrel 2-20 directly makes progress.When index dial rotating unit 2-40 drives index dial 2-30 rotation, drive screw mandrel 2-20 and move along its axis, and then the push rod 1-1 of pushing syringe 1.But continuous micro-drop appearance precise design index dial 2-30 a rotates circle the makes displacement that screw mandrel 2-20 moves along its axis that technique scheme provided; Structure tube list, cost is lower, machining accuracy is high; Requirement according to the reality use; Pitch between external screw thread 2-22 that this displacement can be through regulating screw mandrel 2-20 and the female thread of index dial rotating unit 2-40 is regulated; Present embodiment is used for the drop method experiment of insecticide bioassay; This displacement is preferably 0.6mm, and this continuous micro-drop appearance is applicable to the existing high accuracy syringe that is used for the standard of insecticide bioassay experiment, and makes the medicament push-in stroke of syringe 1 satisfy the requirement of the accurate quantification of the insecticide bioassay experiment dosage of drug.
The index dial rotating unit 2-40 of present embodiment comprises handwheel 2-41, is separately positioned on index dial 2-30 both sides and the first stop 2-42 that is fixedly connected with index dial 2-30 and the second stop 2-43.Wherein, The threaded connection place of index dial rotating unit 2-40 and screw mandrel 2-20 is arranged on the inside of the first stop 2-42; The first stop 2-42 is positioned at the side near syringe 1, and the other end of this first stop 2-42 props up the inboard of cylindrical shell 2-10, with restriction index dial rotating unit 2-40 moving in the axial direction; The other end of the second stop 2-43 is fixedly connected with handwheel 2-41; This handwheel 2-41 is positioned at the outside of cylindrical shell 2-10, and the second stop 2-43 is positioned at the inside of cylindrical shell 2-10, and the end that cylindrical shell 2-10 is positioned at the second stop 2-43 is provided with the cylinder cover 2-50 that connects through screw-nut.Rotate handwheel 2-41 and can drive index dial 2-30 rotation, and then make screw mandrel 2-20 move along its axis the also push rod 1-1 of pushing syringe 1.
In order to make this continuous micro-drop appearance be applicable to that the experiment of different pharmaceutical quantities uses; The index dial 2-30 of present embodiment has the locating ring 2-31 of the different five equilibriums of many groups; Like Fig. 4, this locating ring 2-31 carries out five equilibrium through locating hole 2-32, and cylindrical shell 2-10 is provided with the second alignment pin 2-12 of adjustable positions; The bottom of this second alignment pin 2-12 has flexible member 2-13 and supports; According to selected locating ring 2-31, the position of regulating the second alignment pin 2-12 makes it support locating hole 2-32, with the displacement of distinguishing that index dial 2-30 rotates.The second alignment pin 2-12 is moved on the locating hole 2-32 of locating ring 2-31 of suitable five equilibrium; Rotate handwheel 2-41 and drive index dial 2-30 rotation; Under the effect of flexible member 2-13; The second alignment pin 2-12 can jump to another one locating hole 2-32 from a locating hole 2-32 when index dial 2-30 rotates, when hearing that a trickle fastening sound just can judge this second alignment pin 2-12 and arrive in the locating hole 2-32.
Like Fig. 4, group number and the isodisperse of index dial 2-30 can be decided according to real needs, and preferred design is: can establish five groups of locating ring 2-31, every group of locating ring 2-31 is respectively 2 five equilibriums, 5 five equilibriums, 10 five equilibriums, 20 five equilibriums and 40 five equilibriums; Index dial 2-30 also can establish one group of locating ring 2-31, and wherein the locating ring 2-31 with 5 five equilibriums is good, and the locating ring 2-31 of 5 five equilibriums is fit to people's hand operated more and more accurately obtains the push-in stroke of medicament.
Like Fig. 1 and Fig. 5; The circumference of cylindrical shell 2-10 is provided with positioning disk 2-14, and positioning disk 2-14 has through hole, is provided with connecting rod 2-15 in the through hole; Connecting rod 2-15 axially on have the second groove guide rail 2-16; The through hole of positioning disk 2-14 is provided with the 4th alignment pin 2-17 that is complementary with the second groove guide rail 2-16, and like Fig. 2, the 4th alignment pin 2-17 has limited the rotation that connecting rod 2-15 directly makes progress; The end of connecting rod 2-15 is provided with localizer 2-18; This localizer 2-18 has the pin-and-hole that is complementary with the second alignment pin 2-12, and above-mentioned flexible member 2-13 is located at the bottom of pin-and-hole, and the second alignment pin 2-12 is installed in this pin-and-hole; Wherein, flexible member 2-13 can be spring.
At this continuous micro-drop appearance in use; The mode that can adopt the staff that is convenient for carrying to hold with a firm grip is perhaps in order more stably to advance syringe 1 to obtain accurate more medicine push-in stroke, with the error that prevents to be caused by manual intervention; Can set up a base 4; Like Fig. 1 and Fig. 2, open a base installing hole in the lower end of the positioning disk 2-14 of cylindrical shell 2-10 periphery, through connecting rod cylindrical shell 2-10 is fixedly mounted on the base 4.
Present embodiment also comprises syringe detent mechanism 3; Like Fig. 1; One end of this syringe detent mechanism 3 has draw-in groove 3-1, and the other end is fixed on the cylindrical shell 2-10, and the body of syringe 1 is installed on the draw-in groove 3-1; Draw-in groove 3-1 is provided with the 3rd alignment pin 3-2, and the body of syringe 1 is fixed on the draw-in groove 3-1 through the 3rd alignment pin 3-2.Body for fear of syringe 1 is damaged, and is provided with liner 3-3 at the position that the body of draw-in groove 3-1 and syringe 1 contacts and protects, and wherein, this pad 3-3 can be cushion rubber.
Present embodiment is that 1000 microlitres, medicament body length are that the high accuracy syringe of the standard of 6cm is an example to select pharmaceutical quantities; And the displacement that index dial 2-30 rotation one circle makes screw mandrel 2-20 move along its axis is 0.6mm; 0.3,0.12,0.06,0.03,0.015mm adopts the locating ring 2-31 of 2 five equilibriums, 5 five equilibriums, 10 five equilibriums, 20 five equilibriums and 40 five equilibriums make to rotate its propulsive respectively displacement of five equilibrium to be:; The liquid volume of pushing out respectively is: 5,2,1,0.5,0.25 microlitre meets the requirement that pharmaceutical quantities in the drop method experiment of insecticide bioassay is wanted accurate quantification.When the standard high accuracy syringe of selecting different capabilities for use, during like 100 microlitres, 500 microlitres, 1000 microlitres, 5000 microlitres or 10000 microlitres, the liquid volume that can push out respectively enlarges or dwindles according to syringe capacity ratio and gets final product.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and replacement, these improvement and replacement also should be regarded as protection scope of the present invention.
Claims (10)
1. a continuous micro-drop appearance comprises syringe and syringe propulsive mechanism, it is characterized in that, said syringe propulsive mechanism comprises cylindrical shell, be arranged on the screw mandrel of barrel and have the index dial and the index dial rotating unit of hollow chamber; One end of said screw mandrel props up the push rod of said syringe; The other end adopts with said index dial rotating unit and is threaded; Said screw mandrel axially on have the first groove guide rail, said cylindrical shell is provided with first alignment pin and props up the said first groove guide rail, with the rotation of restriction screw mandrel; Said index dial rotating unit drives index dial and rotates, and makes that simultaneously screw mandrel moves along its axis, and then promotes the push rod of said syringe.
2. continuous micro-drop appearance as claimed in claim 1 is characterized in that, the displacement that said index dial rotation one circle makes screw mandrel move along its axis is 0.6mm.
3. continuous micro-drop appearance as claimed in claim 1 is characterized in that, said index dial rotating unit comprises handwheel, is separately positioned on index dial both sides and first stop that is fixedly connected with index dial and second stop; The threaded connection place of said index dial rotating unit and said screw mandrel is arranged in first stop, and said first stop is positioned at the side near syringe, and its other end props up the inboard of said cylindrical shell; The other end of said second stop is fixedly connected with said handwheel.
4. continuous micro-drop appearance as claimed in claim 1; It is characterized in that; Said index dial has the locating ring of the different five equilibriums of many groups, and said locating ring carries out five equilibrium through locating hole, and said cylindrical shell is provided with second alignment pin of adjustable positions; The bottom of said second alignment pin has flexible member, and said second alignment pin is supporting the position of said locating hole to distinguish that index dial rotates.
5. continuous micro-drop appearance as claimed in claim 4 is characterized in that, said index dial has the locating ring of 5 groups of different five equilibriums.
6. continuous micro-drop appearance as claimed in claim 4 is characterized in that, said locating ring is 2 five equilibriums, 5 five equilibriums, 10 five equilibriums, 20 five equilibriums or 40 five equilibriums.
7. continuous micro-drop appearance as claimed in claim 4; It is characterized in that; The circumference of said cylindrical shell is provided with positioning disk, and said positioning disk has through hole, is provided with connecting rod in the said through hole; Said connecting rod axially on have the second groove guide rail, the through hole of said positioning disk is provided with the rotation that the 4th alignment pin that is complementary with the said second groove guide rail directly makes progress with limiting rod; One end of said connecting rod is provided with localizer, and this localizer has the pin-and-hole that is complementary with second alignment pin, and said flexible member is arranged in the pin-and-hole.
8. continuous micro-drop appearance as claimed in claim 1 is characterized in that also comprise the syringe detent mechanism, an end of said syringe detent mechanism has draw-in groove, and the other end is fixed on the cylindrical shell, and the body of said syringe is installed on the said draw-in groove.
9. continuous micro-drop appearance as claimed in claim 8 is characterized in that the position that the body of said draw-in groove and syringe contacts is provided with liner.
10. continuous micro-drop appearance as claimed in claim 1 is characterized in that also comprise a base, said cylindrical shell is fixedly mounted on the said base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210007855 CN102526839B (en) | 2012-01-11 | 2012-01-11 | Continuous micro intravenous drip instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210007855 CN102526839B (en) | 2012-01-11 | 2012-01-11 | Continuous micro intravenous drip instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102526839A true CN102526839A (en) | 2012-07-04 |
| CN102526839B CN102526839B (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210007855 Expired - Fee Related CN102526839B (en) | 2012-01-11 | 2012-01-11 | Continuous micro intravenous drip instrument |
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| Country | Link |
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| CN (1) | CN102526839B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964026A (en) * | 2017-04-28 | 2017-07-21 | 河南大学淮河医院 | High-precision anesthesia syringe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833384A (en) * | 1987-07-20 | 1989-05-23 | Syntex (U.S.A.) Inc. | Syringe drive assembly |
| EP1647255A2 (en) * | 2004-10-13 | 2006-04-19 | Pentaferte Spa | Method for preparing sclerosing foams and medical device for implementing said method |
| US20080195059A1 (en) * | 2007-02-14 | 2008-08-14 | Daikyo Seiko, Ltd. | Syringe barrel and syringe |
| KR20110051562A (en) * | 2009-11-10 | 2011-05-18 | 백우인 | Disposable syringe |
| CN202404080U (en) * | 2012-01-11 | 2012-08-29 | 中国疾病预防控制中心传染病预防控制所 | Continuous trace fluid infusion instrument |
-
2012
- 2012-01-11 CN CN 201210007855 patent/CN102526839B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833384A (en) * | 1987-07-20 | 1989-05-23 | Syntex (U.S.A.) Inc. | Syringe drive assembly |
| EP1647255A2 (en) * | 2004-10-13 | 2006-04-19 | Pentaferte Spa | Method for preparing sclerosing foams and medical device for implementing said method |
| US20080195059A1 (en) * | 2007-02-14 | 2008-08-14 | Daikyo Seiko, Ltd. | Syringe barrel and syringe |
| KR20110051562A (en) * | 2009-11-10 | 2011-05-18 | 백우인 | Disposable syringe |
| CN202404080U (en) * | 2012-01-11 | 2012-08-29 | 中国疾病预防控制中心传染病预防控制所 | Continuous trace fluid infusion instrument |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964026A (en) * | 2017-04-28 | 2017-07-21 | 河南大学淮河医院 | High-precision anesthesia syringe |
| CN106964026B (en) * | 2017-04-28 | 2020-05-08 | 河南大学淮河医院 | High-precision anesthetic syringe |
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| Publication number | Publication date |
|---|---|
| CN102526839B (en) | 2013-07-03 |
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Granted publication date: 20130703 Termination date: 20180111 |
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