CN101284249A - Trace reagent accurate filling apparatus without cross-infection - Google Patents
Trace reagent accurate filling apparatus without cross-infection Download PDFInfo
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- CN101284249A CN101284249A CNA2008100619069A CN200810061906A CN101284249A CN 101284249 A CN101284249 A CN 101284249A CN A2008100619069 A CNA2008100619069 A CN A2008100619069A CN 200810061906 A CN200810061906 A CN 200810061906A CN 101284249 A CN101284249 A CN 101284249A
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- syringe
- screw rod
- base
- steel wire
- groove
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Abstract
The invention relates to a precise filling device for trace reagents. The prior instruments can not meet the requirements of small size and remote control at the same time. A screw rod and a slide track of the device of the invention are parallelly fixed on a base, and the screw rod is connected with a motor output shaft. A transmission block is screwed with the screw rod and is movably connected with the slide track. A groove is opened on the inner side wall of a syringe base along the circumferential direction, and an injection head in a syringe is movably arranged in the groove. One end of a steel wire is connected with a push rod in the syringe, and the other end is fixedly connected with the transmission block. The both ends of a sleeve are respectively connected with the syringe base and the base, and the sleeve is arranged out of the steel wire. The structure of the precise filling device can be adopted to remotely control the syringe and is characterized by small size and flexibility. At the same time, the injection head is convenient to take, thus preventing different reagents from cross-infection.
Description
Technical field
The invention belongs to biochemical instrument, scientific instrument field, be specifically related to a kind of accurate filling apparatus of trace reagent.
Background technology
In all kinds of biochemical instruments and scientific instrument, usually need to carry out the collection and the application of sample of trace reagent.When amount of reagent again little (reaching the microlitre order of magnitude), filling are accurate again, can only adopt the injection needle tube of minor diameter usually.
Yet the syringe-type syringe is in certain applications, and have following two problems: between the various different reagent in (1) biochemical reaction, cross-infection can not take place in requirement, otherwise the accuracy of influence test.Concerning the syringe-type syringe,, after using a kind of reagent,, also be difficult to clean up even if water washes repeatedly because its internal diameter is very little.At this moment, if the 2nd kind of reagent is operated, just be easy to produce the cross-infection problem between the different reagent.(2), adopt cam or reciprocating connecting rod to push away, draw the middle plunger of syringe to realize usually to the control of syringe-type syringe.Yet, in some instrument, require the volume of syringe little, again away from controlling organizations such as controller or cam, connecting rods.At this moment, traditional method is just no longer suitable.
Summary of the invention
Purpose of the present invention is exactly at the deficiencies in the prior art, and a kind of novel agent filling apparatus that can thoroughly avoid cross-infection, the little accurate filling flexible, that can realize trace reagent of syringe volume to control is provided.
Apparatus of the present invention comprise screw rod, drive block, motor, sleeve pipe, syringe tray, syringe and steel wire.
Screw rod is erected on the base, is connected the outer tapping of screw rod with the power output shaft of motor by shaft joint;
Tapping in the drive block is nested with at the screw rod middle part, is connected with screw rod; Slide rail is fixed on the base, be arranged in parallel with screw rod, and drive block and slide rail flexibly connect;
Syringe tray is the housing that has at least a side open, and madial wall circumferentially has groove, and the upper end flange of the injection head in the syringe is embedded in this groove;
One end of steel wire is connected by connector with the push rod in the syringe, and the other end is fixedlyed connected with drive block; One end of sleeve pipe is fixed on the top end opening place of syringe tray, and the other end is connected with base; Described sleeve pipe is nested with outside steel wire.
Drive screw rod when motor rotates among the present invention and rotate, move along slide rail thereby drive drive block, drive and stretch out before and after the steel wire or when withdraw, just the push rod in the syringe is produced push-and-pull action, formation acts on suction, the row of reagent.This structure makes that syringe can be away from control device, and has the little and flexibility characteristics of volume.Simultaneously, because syringe tray is the housing that has at least a side open, injection head can take out from the groove of syringe tray inboard easily, thus can every usefulness once just change one new, guarantee can not produce the cross-infection between the different reagent.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
The specific embodiment
As shown in Figure 1, trace reagent accurate filling apparatus without cross-infection comprises drive block 2, sleeve pipe 3, steel wire 4, syringe tray 5, syringe (comprising push rod 7 and injection head 8), base 9, screw rod 10, slide rail 11, motor 12.
Screw rod 10 and slide rail 11 secured in parallel are arranged on the base 9, and screw rod 10 is connected with the power output shaft of motor 12 by shaft joint 1.Drive block 2 is nested with at screw rod 10 middle parts, tapping in the drive block 2, and screw rod 10 outer tappings, drive block 2 is connected with screw rod 10.Drive block 2 flexibly connects with slide rail 11, can move forward and backward along slide rail 11.
Syringe tray 5 is the open housing of a side, and its madial wall circumferentially has groove, and the upper end flange of the injection head 8 in the syringe is embedded in this groove.One end of steel wire 4 is connected by connector 6 with push rod 7 in the syringe, and the other end is fixedlyed connected with drive block 2.One end of sleeve pipe 3 is fixed on the top end opening place of syringe tray 5, and the other end is connected with base 9.Sleeve pipe 3 is nested with outside steel wire 4.
In the work, motor drives screw rod and rotates when rotating, and moves along slide rail thereby drive drive block, drives to stretch out before and after the steel wire or when withdraw, just the push rod in the syringe is produced push-and-pull action, and formation acts on suction, the row of reagent.
This control structure makes that syringe can be away from control device, and has the little and flexible characteristics of volume.Simultaneously, injection head can take out from the groove of syringe tray inboard easily, thus can every usefulness once just change one new, guarantee can not produce the cross-infection between the different reagent.
Claims (1)
1, a kind of trace reagent accurate filling apparatus without cross-infection comprises syringe and motor, it is characterized in that:
Screw rod is erected on the base, is connected the outer tapping of screw rod with the power output shaft of motor by shaft joint;
Tapping in the drive block is nested with at the screw rod middle part, is connected with screw rod; Slide rail is fixed on the base, be arranged in parallel with screw rod, and drive block and slide rail flexibly connect;
Syringe tray is the housing that has at least a side open, and madial wall circumferentially has groove, and the upper end flange of the injection head in the syringe is embedded in this groove;
One end of steel wire is connected by connector with the push rod in the syringe, and the other end is fixedlyed connected with drive block; One end of sleeve pipe is fixed on the top end opening place of syringe tray, and the other end is connected with base;
Described sleeve pipe is nested with outside steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100619069A CN101284249A (en) | 2008-05-12 | 2008-05-12 | Trace reagent accurate filling apparatus without cross-infection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100619069A CN101284249A (en) | 2008-05-12 | 2008-05-12 | Trace reagent accurate filling apparatus without cross-infection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101284249A true CN101284249A (en) | 2008-10-15 |
Family
ID=40056792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100619069A Pending CN101284249A (en) | 2008-05-12 | 2008-05-12 | Trace reagent accurate filling apparatus without cross-infection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101284249A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804998A (en) * | 2015-02-14 | 2015-07-29 | 江汉大学 | Plasmid extraction device |
| CN110252592A (en) * | 2019-06-04 | 2019-09-20 | 陕西科技大学 | A kind of nanoliter level liquid droplet distribution device and method based on wetability partitioned organization |
| CN113854171A (en) * | 2021-09-27 | 2021-12-31 | 合肥五粮泰生物科技有限公司 | Manger with residual feed clearance function |
-
2008
- 2008-05-12 CN CNA2008100619069A patent/CN101284249A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804998A (en) * | 2015-02-14 | 2015-07-29 | 江汉大学 | Plasmid extraction device |
| CN110252592A (en) * | 2019-06-04 | 2019-09-20 | 陕西科技大学 | A kind of nanoliter level liquid droplet distribution device and method based on wetability partitioned organization |
| CN110252592B (en) * | 2019-06-04 | 2021-03-16 | 陕西科技大学 | Nano-liter-level liquid drop distribution device and method based on wettability partition structure |
| CN113854171A (en) * | 2021-09-27 | 2021-12-31 | 合肥五粮泰生物科技有限公司 | Manger with residual feed clearance function |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20081015 |