CN201239631Y

CN201239631Y - Microscopic glass gripper

Info

Publication number: CN201239631Y
Application number: CNU2008200298580U
Authority: CN
Inventors: 姚红; 李强; 江山; 李凡; 王化宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-05
Filing date: 2008-08-05
Publication date: 2009-05-20
Anticipated expiration: 2018-08-05

Abstract

A cover glass gripper facilitates gripping a cover glass and keeps the gripping state so as to avoid the repeated gripping operation on the cover glass. The cover glass gripper comprises a grab handle, two fine needles, and a movable gripping rod. The movable gripping rod is fixed on the grab handle through a torsion spring; and two fine needles are in parallel arrangement and fixed at the lower end of the grab handle, the needlepoint inclined surface faces upward. When the gripper is not influenced by the external force, a pressing bar of the movable gripping rod is in tight contact with the fine needles; and when the gripper is influenced by the external force, the pressing bar tilts upwards so as to lose the contact with the fine needles through the action of the torsion spring, the fine needles can utilizes the points thereof so as to be inserted in the clearance under the cover glass, and the cover glass is slightly tilted and levelly placed on the fine needles. At that time, the external force is removed, the pressing bar grip on edge of the cover glass through the elastic recovery of the torsion spring so as to enable the cover glass to be fixed on the gripper. after that, the cover glass gripper just needs to be held so as to transfer the cover glass plate and conduct the operation on the cells carried by the cover glass.

Description

The cover glass clamper

Affiliated technical field

The utility model belongs to experiment apparatus technical field, designs a kind of metal cover glass clamper of being convenient to cover glass clamping operation with self-tightening feature.

Background technology

Many experiments in life science field, particularly relate in the experiment of cell cultivation, usually need in incubation, cell be seeded on the cover glass, and when experiment condition is satisfied in the cell growth, cover glass must be taken out operations such as doing further form dyeing mensuration, patch-clamp from culture dish.At present, with the experimental implementation that cover glass takes out from culture dish, typically use pincet cover glass is picked up.But can cause many problems like this: the first, because the existence of nutrient solution, cleaning solution, cover glass contacts with culture dish usually relatively closely, and the most advanced and sophisticated not enough taper of pincet is not easy smoothly cover glass to be provoked; The second, even provoke cover glass, if untimely clamping, cover glass very easily falls back in the culture dish, usually is stacked in other above cover glass, and perhaps cover glass upset takes place and cause cell to attach to face down, and can't carry out subsequent experimental; The 3rd, cover glass, is broken because local pressure is inhomogeneous easily by the pincet clamping; The 4th, experimentation often needs repeatedly removable cover slide, and the clamping repeatedly of pincet will certainly cause the cellular damage in a plurality of zones, influences experimental result.

In recent years, researcher had designed some apparatuses, cultivated pathological staining box (plate) such as cell, was applicable to a large amount of immunocyte dyeing, had solved above-mentioned subproblem, if but sample is less, will cause waste; And in experiments such as many cell function mensuration, must be with cover glass as cell carrier, so quick, the safe clamping of cover glass just becomes a major issue that needs to be resolved hurrily.

Summary of the invention

The purpose of this utility model provides a kind of metal cover glass clamper of being convenient to cover glass clamping operation with self-tightening feature, to overcome the deficiencies in the prior art.

The technical scheme that the utility model adopted is: the cover glass clamper is made of lever, two fine needles and movable clamping bar three parts, movable clamping bar is fixed on the lever by torsion spring, two fine needles are arranged in parallel, be fixed on lever lower end bipod by the injector for medical purpose standard interface, pinpoint inclined plane upwards.The cover glass clamper be not subjected to external force to do the time spent, and the cylindrical press strip of clamping bar closely contacts with parallel two fine needles.When external force acted on clamping bar, by the effect of torsion spring, press strip was upturned, and disengaged with fine needle, and slit between cover glass and culture dish can be inserted in the tip that fine needle utilizes its inclined-plane to make progress, and gently cover glass is provoked and it is flat on the fine needle.Remove external force this moment, and press strip with clamping an edge of cover glass, is fixed on the clamper cover glass by the elastic recovery of torsion spring.Only need hold the cover glass clamper afterwards just can take out cover glass from culture dish.The user if need to the cell on the cover glass dye, during operation such as patch-clamp, microinjection or cell count, need not unclamp the cover glass clamper, just can finish all operations, and can after experiment finishes, transfer to microscope carrier very easily and carry out microscopy or the enterprising line operate of Other Instruments.The metal bead diameter of this cover glass clamper is little, and acts on a limit of cover glass, can not cause the cellular damage in a plurality of zones; Need not put down cover glass in the experimentation, the situation that the cover glass positive and negative is put upside down can not take place yet.5 millimeters of vertical ranges between two fine needles, less than the minimum length of side of cover glass commonly used, but the therefore cover glasses of the different sizes of gripping.The press strip cross section is circular, and 1 millimeter of diameter is tangent with the cover glass contact-making surface, can guarantee that clamping is definite, and the situation that causes cover glass to break or come off from clip because of unbalance stress can not take place.Two fine needles are No. 4.5 injector for medical purpose syringe needles, when needle point through use repeatedly get rusty or bumped hair after, promptly replaceable, dismantle very convenient.

The beneficial effects of the utility model are that gripping cover glass, and sustainable clamping quickly and easily reduces the damage to the cell on the cover glass, improves operating efficiency.

Description of drawings

Fig. 1 is a cover glass clamper overall schematic: 1 lever, and 2 movable clamping bars, 3 two parallel fine needles, the cylindrical press strip of 4 clamping bars, 5 are used for movable clamping bar is fixed on the torsion spring of lever

Fig. 2 is the side schematic view that the cover glass clamper is provoked cover glass

The schematic diagram of Fig. 3 after to be the cover glass clamper with the cover glass clamping definite

The specific embodiment

For clearly demonstrating the technical characterstic of this programme,, and in conjunction with the accompanying drawings, this programme is set forth below by a specific embodiment.

As shown in Figure 1, the cover glass clamper is made of lever, movable clamping bar and fine needle three parts, and clamping bar is fixed on the lever by torsion spring, and two fine needles are arranged in parallel, and are fixed on the bipod of lever lower end, and pinpoint inclined plane upwards;

As shown in Figure 2, during external force effect clamping bar, by the effect of torsion spring, press strip is upturned, and disengages with fine needle, and fine needle can insert between cover glass and the culture dish by the tip that the inclined-plane makes progress, and provokes and be flat on cover glass on the fine needle gently;

As shown in Figure 3, cover glass is pulled to the fine needle root, removes external force, and press strip is clamped an edge of cover glass by the elastic recovery of torsion spring, and this moment, cover glass just was fixed on the cover glass clamper, held the cover glass clamper and can take cover glass out of culture dish.

Claims

1. cover glass clamper, a kind of metal self-tightening clip, it is made of lever, two fine needles and movable clamping bar three parts, and it is characterized in that: movable clamping bar is connected with lever by torsion spring, the clamping bar end is a press strip, and two fine needles are fixed on the bipod of lever lower end.

2. a kind of cover glass clamper according to claim 1 is characterized in that two fine needles are arranged in parallel, and the length thickness equates that all tip ramp upwards.

3. a kind of cover glass clamper according to claim 1 is characterized in that, the press strip of clamping bar end is all vertical with two parallel fine needles.

4. a kind of cover glass clamper according to claim 1 is characterized in that clamper is not subjected to external force to do the time spent, and the press strip that torsion spring makes the depression bar end closely contacts with two parallel fine needles.