RU2813956C1 - Laboratory aspirator with trap vessel - Google Patents

Abstract

FIELD: laboratory equipment.

SUBSTANCE: invention relates to laboratory equipment and can be used in research laboratories for removing liquids (traces of reagents and other laboratory materials) from test tubes, plates, various containers and from surfaces during laboratory operations. Laboratory aspirator comprises a housing unit, a trap vessel inserted into the housing unit, an air filter, an aspiration line, an aspiration tip, a liquid level sensor and a control panel. Aspiration tip is connected by means of an aspiration line to the cover of the trap vessel, which is connected by the second aspiration line through the filter to the pump located in the housing unit of the aspirator. Liquid level sensor is built into the housing unit having a control panel on the front part. At the same time control panel contains separately made on indicator, on/off button, power indicator, power adjustment button, error indicator, and power indicator contains three light-emitting diodes.

EFFECT: increased compactness and manufacturability of a laboratory aspirator with a trap vessel.

1 cl, 3 dwg

Description

The invention relates to laboratory equipment and can be used in research laboratories for removing liquids (traces of reagents and other laboratory materials) from test tubes, plates, various containers and from surfaces during laboratory operations.

The closest analogue, chosen as a prototype, is a laboratory aspirator containing a trap vessel with a filling sensor, an aspiration line, an air filter, and a pump (see CN 2050763 U, 01/10/1990). The filling sensor is located inside the trap vessel. The aspirator controls are located at a distance from its main elements.

The prototype has the disadvantage of low compactness and low manufacturability, due to the relative position of the structural elements.

The objective of the invention is to eliminate the disadvantages of the prior art.

When performing the task, the invention achieves a technical result consisting in increasing the compactness and manufacturability of a laboratory aspirator with a trap vessel.

The task is performed, and the technical result is achieved by a laboratory aspirator containing a block housing, a trap vessel inserted into the block housing, an air filter, an aspiration line, an aspiration tip, a liquid level sensor, a control panel, characterized in that the aspiration tip is used by means of an aspiration line connected to the lid of the trap vessel, which is connected by a second aspiration line through a filter to a pump located in the aspirator block housing, while the liquid level sensor is built into the block housing, which has a control panel on the front part.

The control panel contains a power indicator, an on-off button, a power indicator, a power adjustment button, and an error indicator.

The essence of the invention is illustrated in accompanying figures 1-3: figure 1 - appearance of the aspirator; Fig.2 - control panel; Fig.3 - control panel.

Where individual positions indicate: 1 - aspirator block housing with controls, 2 - trap vessel, 3 - lid of the trap vessel, 4 - control panel, 5 - air filter, 6 - aspiration line, 7 - aspiration tip, 8 - power button, 9 - power supply connector, 10 - vacuum line connector, 11 - power indicator, 12 - on/off button, 13 - power indicator, 14 - power adjustment button, 15 - error indicator, 16 - pump, 17 - liquid level sensor, 18 - flow of aspirated liquid, 19 - air flow.

The laboratory aspirator contains a block housing 1, a trap vessel 2 inserted into the block housing 1, an air filter 5, an aspiration line 6, an aspiration tip 7, a liquid level sensor 17, and a control panel. The aspiration tip 7 is connected via an aspiration line 6 to the lid 3 of the trap vessel, which is connected to a pump 16 located in the block housing 1 of the aspirator via a second aspiration line 6 through a filter 5.

In this case, the liquid level sensor 17 is built into the block housing 1, which has a control panel on the front.

The control panel contains a power indicator 11, an on/off button 12, a power indicator 13, a power adjustment button 14, and an error indicator 15.

The aspirator is equipped with a 1-liter glass vessel with an overflow sensor that prevents the trap flask from overfilling and damaging the filter with the collected liquid. Aspiration is possible using a single-channel 200 µl tip or an 8-channel adapter (ordered separately).

The aspiration microbiological filter is hydrophobic and retains particles larger than 0.022 microns, which with an efficiency of 99.9% prevents the release of pathogenic viruses, bacteria or other infectious particles from the trap flask.

When turned on, the vacuum pump creates a vacuum in the trap vessel. Through the aspiration tip and tubes of a set of standard tubes and fittings, the aspirator provides suction and sedimentation of the aspirated liquid in the trap vessel.

The dimensions of the aspirator can be, for example, the following: 230x162x340 mm.

To turn on the aspirator, you must move the power button 8 to the “On” position, while the power indicator 13 displays the current level: 1 lit LED ~ 60%, 2 LEDs ~ 80% and 3 LEDs ~ 100% of maximum power.

The suction power level is changed by pressing the power adjustment button 14. The switching is carried out incrementally cyclically.

When you press the on-off button 12, the pump 16 starts, the on indicator 11 lights up, the pump draws air 19 from the trap vessel 2 through the line, excess pressure is formed in the trap vessel 2 and when the aspiration tip 7 touches the surface of the liquid 18, it is drawn into the vessel -trap 2.

When the maximum liquid level in the trap vessel is reached, the non-contact liquid level sensor 17 will operate, a sound signal will sound, the error indicator 15 will light up and the vacuum pump 16 will automatically turn off.

To resume operation, it is necessary to empty the trap vessel, replace it and reset the error signal. To reset the error, you must hold down the power adjustment button 14 for 3 seconds.

Regular shutdown of aspiration is carried out by pressing the on/off button 12 again.

Upon completion of work, you must move the power button 8 to the “Off” position.

Thus, the shortcomings of the existing level of technology are eliminated, and a technical result is achieved, which consists in increasing the compactness and manufacturability of a laboratory aspirator with a trap vessel.

A search through publicly available sources of information showed that the entire set of features of the proposed invention is not known from the prior art and does not clearly follow, and therefore the invention meets the conditions of patentability “novelty” and “inventive step”.

The claimed invention consists of elements standard for this field of technology, interconnected in a certain way, and also made of well-known materials, that is, it can be used in industry, which is why the invention meets the patentability condition of “industrial applicability”.

It should be understood that after review by a specialist of the given description with an example of implementation of the proposed invention, other changes, modifications and embodiments of the invention will become obvious to him. Thus, all such changes, modifications and variations, as well as other applications that do not deviate from the spirit of the present invention, should be considered protected by the present invention within the scope of the appended claims.

Claims (2)

1. A laboratory aspirator containing a block housing, a trap vessel inserted into the block housing, an air filter, an aspiration line, an aspiration tip, a liquid level sensor, a control panel, characterized in that the aspiration tip is connected to the lid of the vessel via an aspiration line - trap, which is connected by a second aspiration line through a filter to a pump located in the aspirator block housing, while the liquid level sensor is built into the block housing, which has a control panel on the front, and the control panel contains a separately made power indicator, a power button - power indicator, power adjustment button, error indicator, and the power indicator contains three LEDs. 2. Laboratory aspirator according to claim 1, characterized in that the LEDs of the power indicator reflect the current power level from the maximum: one lit LED corresponds to 60%, two lit LEDs - 80%, three lit LEDs - 100%.