CN203678407U

CN203678407U - Micropipettor

Info

Publication number: CN203678407U
Application number: CN201320750071.4U
Authority: CN
Inventors: 梅蕾; 刘倩
Original assignee: Heilongjiang Nongken Vocational College
Current assignee: Heilongjiang Nongken Vocational College
Priority date: 2013-11-25
Filing date: 2013-11-25
Publication date: 2014-07-02
Anticipated expiration: 2023-11-25

Abstract

The utility model discloses a micropipettor and belongs to the field of medical apparatus and instruments. The utility model aims to solve the problem that the conventional micropipettor does not have a time metering function needed by standard liquid transfer operation each time. The micropipettor provided by the utility model comprises a control button, a shell, a sleeve and a syringe needle, wherein the lower end of the shell is connected with the sleeve; the lower end of the sleeve is connected with the syringe needle; the control button is arranged at the upper end of the shell and is inserted into the shell through a core rod; the micropipettor also comprises a timing actuating lever and a timer; the timer comprises a manual button, a timer chip, a direct current power supply and a time display; a display interface of the time display is arranged at a hollow position of the shell; the upper end of the timing actuating lever is fixedly arranged on a lower surface of the control button; the timing actuating lever is inserted into the shell; the lower end of the timing actuating lever is connected with a control end of the manual button; the manual button is connected in series between the direct current power supply and the timer chip; a display signal output end of the timer chip is connected with a display signal input end of the time display.

Description

Micropipettor

Technical field

The utility model relates to micropipettor, belongs to medical instruments field.

Background technology

Micropipettor is a kind of precise liquid-fetching device (being commonly called as rifle) that can arbitrarily regulate within the scope of certain capacity, general principle is to rely on moving up and down of device inner carrier, the displacement of gas piston is realized by regulating wheel control screw-rod structure, promote button and drive catch bar that piston is moved down, get rid of the gas in plunger shaft.After loosing one's grip, piston sets back under the effect of back-moving spring, thereby completes imbibition process one time.

Micropipettor is the indispensable instrument of biological experiment, therefore, require experimenter must grasp use technical ability, use in the process of micropipettor in study, new hand wishes the exercise process of oneself to have the grasp of " amount ", completes the time measurement of the pipetting needs of a standard, still, existing micropipettor can not measure new hand's exercise process, makes the assessment that people can not be objective and accurate to exercise process.

Summary of the invention

The utility model object is the problem that does not possess the time measurement function of the pipetting needs of a standard in order to solve existing micropipettor, and a kind of micropipettor is provided.

Micropipettor described in the utility model, it comprises control button, shell, sleeve and syringe needle, the bottom branch sleeve of shell, the bottom connecting needle of sleeve, control button is arranged on the upper end of shell, and inserts the inside of shell by plug;

Micropipettor also comprises timing starting bar and timer; Timer comprises hand push button, timer chip, dc source and time display; Timer chip, dc source and time display are placed in enclosure, and the display interface of time display is placed in the hollow part of shell; The upper end of timing starting bar is fixedly installed on the lower surface of control button, the inside that timing starts stalk inserts shell, the lower end of timing starting bar is connected with the control end of hand push button, one end of hand push button connects the negative pole of dc source, the power positive end of the anodal connection timer chip of dc source, the power-of timer chip extremely connects the other end of hand push button; The display output of timer chip is connected with the display input of time display.

Advantage of the present utility model: the deadline of a pipetting of micropipettor energy complete documentation described in the utility model, make beginner can record the study course of oneself, the skilled use of grasp micropipettor gradually.

Brief description of the drawings

Fig. 1 is the structural representation of micropipettor described in the utility model;

Fig. 2 is the internal structure schematic diagram of micropipettor described in the utility model;

Fig. 3 is timer theory diagram.

Detailed description of the invention

Detailed description of the invention one: present embodiment is described below in conjunction with Fig. 1 to Fig. 3, micropipettor described in present embodiment, it comprises control button 1, shell 2, sleeve 3 and syringe needle 4, the bottom branch sleeve 3 of shell 2, the bottom connecting needle 4 of sleeve 3, control button 1 is arranged on the upper end of shell 2, and inserts the inside of shell 2 by plug;

Micropipettor also comprises timing starting bar 5 and timer 6; Timer 6 comprises hand push button 6-1, timer chip 6-2, dc source 6-3 and time display 6-4; Timer chip 6-2, dc source 6-3 and time display 6-4 are placed in shell 2 inside, and the display interface of time display 6-4 is placed in the hollow part of shell 2; The upper end of timing starting bar 5 is fixedly installed on the lower surface of control button 1, timing starting bar 5 inserts the inside of shell 2, the lower end of timing starting bar 5 is connected with the control end of hand push button 6-1, one end of hand push button 6-1 connects the negative pole of dc source 6-3, the power positive end of the anodal connection timer chip 6-2 of dc source 6-3, the power-of timer chip 6-2 extremely connects the other end of hand push button 6-1; The display output of timer chip 6-2 is connected with the display input of time display 6-4.

The parts that existing micropipettor all comprises are control button 1, shell 2, sleeve 3 and syringe needle 4, and control button 1 inserts the inside of shell 2 by plug, connect the parts such as piston, are also provided with the display window 7 of liquid volume at the outer surface of shell 2.

In the time carrying out pipetting, in the time of imbibition, can press control button 1, in present embodiment, in the time pressing control button 1, can directly press the timing starting bar 5 below it, timing starting bar 5 is pressed hand push button 6-1, connect the power supply of timer chip 6-2, start timing, real-time the showing of time of timing on time display 6-4, in the time of discharge opeing, release control button 1 slowly, in the time being totally released control button 1, hand push button 6-1 also can disconnect thereupon, the power supply that has disconnected timer chip 6-2, stops timing.Present embodiment is that the break-make of the power supply by controlling timer chip 6-2 is controlled timing, and this process is just in time the process of pipetting, can complete record and move the liquid time, so that the process of assessment new hand pipetting.

Detailed description of the invention two: present embodiment is described further embodiment one, timer chip 6-2 adopts manual time-keeping device to realize.

Detailed description of the invention three: present embodiment is described further embodiment two, dc source 6-3 adopts the lithium battery of 6V to realize.

Claims

1. micropipettor, it comprises control button (1), shell (2), sleeve (3) and syringe needle (4), the bottom branch sleeve (3) of shell (2), the bottom connecting needle (4) of sleeve (3), control button (1) is arranged on the upper end of shell (2), and inserts the inside of shell (2) by plug;

It is characterized in that, micropipettor also comprises timing starting bar (5) and timer (6); Timer (6) comprises hand push button (6-1), timer chip (6-2), dc source (6-3) and time display (6-4); Timer chip (6-2), dc source (6-3) and time display (6-4) are placed in shell (2) inside, and the display interface of time display (6-4) is placed in the hollow part of shell (2); The upper end of timing starting bar (5) is fixedly installed on the lower surface of control button (1), timing starting bar (5) inserts the inside of shell (2), the lower end of timing starting bar (5) is connected with the control end of hand push button (6-1), one end of hand push button (6-1) connects the negative pole of dc source (6-3), the power positive end of the anodal connection timer chip (6-2) of dc source (6-3), the power-of timer chip (6-2) extremely connects the other end of hand push button (6-1); The display output of timer chip (6-2) is connected with the display input of time display (6-4).

2. micropipettor according to claim 1, is characterized in that, timer chip (6-2) adopts manual time-keeping device to realize.

3. micropipettor according to claim 1, is characterized in that, dc source (6-3) adopts the lithium battery of 6V to realize.