CN217265736U - Disposable inoculator - Google Patents

Abstract

The utility model discloses a disposable inoculator, which comprises a connecting part, wherein a first connecting end and a second connecting end are arranged on the connecting part, the first connecting end and the second connecting end are respectively positioned at the upper end and the lower end of the connecting part, and a connecting cavity which is spliced with a pipette tip in a matching way is arranged on the first connecting end; the inoculation part is movably connected to the second connecting end of the connecting part, and a plurality of inoculation heads are uniformly distributed on the inoculation part far away from the second connecting end. The utility model has the advantages that the batch sterilization treatment of the device can be easily realized while two different inoculation modes, namely manual inoculation and automatic inoculation, are satisfied; cross contamination among samples can be effectively prevented, scribing of a plurality of different areas of one sample can be easily completed, the growth amount of single colonies is increased, and the success rate of inoculation is ensured; not only can guarantee good inoculation marking effect, but also can light, effectual control and the contact dynamics of culture medium, avoid lacerating the culture medium, promote the ease for use of this device, reduce the experience requirement to the kind of operation personnel by a wide margin.

Description

Disposable inoculator

Technical Field

The utility model relates to the technical field of in vitro diagnosis inoculation, in particular to a disposable inoculator.

Background

With the development of microbiological testing technology, the demand of microbiological laboratories for automation of experimental operations is increasing. In the clinical microorganism inspection process, the inoculation work of the specimen (such as the inoculation of a respiratory tract specimen, the inoculation of a fecal specimen and the like) is mostly finished manually, although the technical requirement of the specimen inoculation is low, most of the inoculation is repetitive work, the efficiency of the manual inoculation work is still very low due to the very large treatment capacity and the large biohazard of the inoculation work, so that the full-automatic flat plate inoculation instrument is suitable for transportation, and the full-automatic flat plate inoculation instrument is a specimen processing system for carrying out streak inoculation on a clinical sample to obtain a finished culture medium.

The inoculators used by the common full-automatic flat plate inoculators on the market at present mainly have two types:

the first is a reusable metal inoculator. Although the disposable streaking device can be used repeatedly, the sterile operation of two adjacent inoculations or streaking work is realized by carrying out heating sterilization treatment on the inoculator, the disadvantage is that the same inoculator is used for different streaking lines when the sample is streaked in a subarea manner, so that a single colony of the sample is less, the next experiment is influenced, and if each streaking line is subjected to heating sterilization on the inoculator again, the time consumption of single sample streaking is greatly increased; in addition, the inoculation mode has potential cross contamination risk, the contact force with the culture medium is difficult to control, the culture medium is easily scratched when the force is too high, and the culture medium cannot be touched when the force is too low, so that the inoculation fails.

The second type is a disposable inoculator. At present, a few automatic inoculators using disposable inoculators are used, and typically, a flat plate is streaked by a disposable inoculating comb, and the inoculators have the defects that a sample is not streaked in a divided mode and the contact force with a culture medium is difficult to control; the sample is not subjected to zone division and streaking, so that single colonies of the sample are fewer, and the next experiment is influenced; the difficulty in controlling the force can cause the culture medium to be easily scratched when the force is too large, and the inoculation fails when the force is too small and the culture medium cannot be touched.

Disclosure of Invention

An object of the utility model is to provide a disposable inoculator.

In order to achieve the above purpose, the utility model can adopt the following technical proposal:

the disposable inoculator of the utility model, include:

the first connecting end and the second connecting end are respectively positioned at the upper end and the lower end of the connecting part, and the first connecting end is provided with a connecting cavity which is in adaptive splicing with the pipette head; and

the inoculation part is movably connected to the second connecting end of the connecting part, and a plurality of inoculation heads are uniformly distributed on the inoculation part away from the second connecting end.

Furthermore, the connecting part comprises a tapered plastic connecting sleeve with a large upper part and a small lower part, a tapered cavity at the inner side of the tapered plastic connecting sleeve is the connecting cavity, and a butt joint with a cylindrical structure is arranged at the lower end of the tapered plastic connecting sleeve in a downward extending manner.

Further, the inoculation portion including the adaptation suit in flexible silica gel cover on the butt joint the bottom surface of flexible silica gel cover is gone up the coaxial support pole setting that has linked firmly, the lower extreme of supporting the pole setting has a plurality of rather than looks vertically horizontal extension rod along the circumference equipartition, each the outer end of horizontal extension rod all links firmly a flexible silica gel ball.

Furthermore, the horizontal extension pole is four, the equipartition in on the lower extreme outer wall of support pole setting, flexible silica gel ball is four, and the one-to-one links firmly each on the horizontal extension pole.

Furthermore, the outer surface of the flexible silica gel ball is a rough surface.

The utility model has the advantages that the connecting part which is spliced with the pipette head in a matching way is matched with the inoculation part which is movably connected with the connecting part, so that the device can be easily connected to the pipette head to manually inoculate the sample, or connected to the inoculator of a full-automatic flat plate inoculator to automatically inoculate the sample, and the batch sterilization treatment of the device can be easily realized while the manual and automatic different inoculation modes are met; in addition, one disposable inoculator is correspondingly used for one sample, so that cross contamination among samples can be effectively prevented, and simultaneously, a plurality of inoculating heads uniformly distributed on an inoculating part can be matched, and scribing of a plurality of different areas of one sample can be easily finished, so that the growth quantity of single colonies is increased, the success rate of inoculation is ensured, and the smooth proceeding of subsequent experiments is ensured; in addition, the flexible silica gel ball with the rough surface on the outer surface is used as the inoculating head which is contacted with the culture medium, so that not only can a good inoculating and lineation effect be ensured, but also the contact force with the culture medium can be easily and effectively controlled, the culture medium is prevented from being scratched, the usability of the device is improved, and the experience requirements of inoculating operators are greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

As shown in figure 1, the disposable inoculator of the present invention comprises a connecting part 1 and an inoculating part 2. The connecting part 1 is provided with a first connecting end and a second connecting end, the first connecting end and the second connecting end are respectively positioned at the upper end and the lower end of the connecting part 1, and the first connecting end is provided with a connecting cavity 3 which is in adaptive splicing with the pipette tip; the inoculation part 2 is movably connected to the second connecting end of the connecting part 1, and a plurality of inoculation heads are uniformly distributed on the inoculation part far away from the second connecting end.

Specifically, the connecting portion 1 includes a tapered plastic connecting sleeve 1.1 with a large top and a small bottom, the tapered cavity inside the tapered plastic connecting sleeve 1.1 is the connecting cavity 3, a butt joint 1.2 with a cylindrical structure is provided at the lower end of the tapered plastic connecting sleeve 1.1 in a downward extending manner, and the butt joint is the second connecting end of the connecting portion 1 and is used for connecting with the inoculation portion 2.

The inoculation part 2 comprises a flexible silica gel sleeve 2.1 which is sleeved on the butt joint in an adaptive manner, a supporting upright rod 2.2 is coaxially and fixedly connected to the bottom surface of the flexible silica gel sleeve 2.1, a plurality of horizontal extension rods 2.3 which are perpendicular to the supporting upright rod 2.2 are uniformly distributed at the lower end of the supporting upright rod 2.2 along the circumferential direction, and a flexible silica gel ball 2.4 is fixedly connected to the outer end of each horizontal extension rod 2.3, most preferably, four horizontal extension rods 2.3 are uniformly distributed on the outer wall of the lower end of each supporting upright rod 2.2 along the circumferential direction, correspondingly, four flexible silica gel balls 2.4 are correspondingly fixedly connected to each horizontal extension rod 2.3; the horizontal extension rod 2.3 and the flexible silica gel ball 2.4 jointly form an inoculation head, the length of the inoculation head is smaller than the radius of the upper end of the conical plastic connecting sleeve 1.1, so that the upper end of the conical plastic connecting sleeve 1.1 is the maximum position of the whole inoculator, and meanwhile, the upper end of the conical plastic connecting sleeve 1.1 is matched with the pipette tip, so that the inoculator can be completely matched and loaded in a loading box of the pipette tip, and batch sterilization treatment is easily realized.

In addition, in order to make the streak inoculation effect better, the surface of the flexible silica gel ball 2.4 can be a rough surface, so that when the good streak effect of the upper surface of the culture medium is ensured, the contact force with the culture medium can be easily and effectively controlled through the elasticity of the flexible silica gel ball 2.4, the culture medium is prevented from being scratched, the usability of the device is improved, and the experience requirements of the operator for the streak inoculation are greatly reduced.

When adopting artifical manual inoculation, only need use the pipetting gun ration that is equipped with the pipetting gun head to absorb the sample that awaits measuring and spread on the culture medium, then load this application on the rifle head of pipetting gun disposable inoculator, come to carry out the streak inoculation to the sample through the flexible silica gel ball 2.4 of inoculation head, promptly: one inoculation head is used for scribing a first area, and then a second area, a third area and a fourth area are respectively scribed by a second area, a third area and a fourth area, so that the inoculation process of one sample is completed, scribing of a plurality of different areas of one sample is easily realized, the growth amount of single bacterial colonies is increased, and the success rate of inoculation is ensured; in addition, the inoculation heads are used without any sequence, can be randomly used, but cannot be used in a crossed manner.

When the full-automatic plating inoculator is adopted for automatic inoculation, the disposable inoculator is only required to be placed on a loading station for loading the pipette tips, and then the disposable inoculator can be automatically loaded and subjected to automatic streaking inoculation.

Claims (5)

1. A disposable inoculator characterized in that: comprises that

The first connecting end and the second connecting end are respectively positioned at the upper end and the lower end of the connecting part, and the first connecting end is provided with a connecting cavity which is in adaptive splicing with the pipette head; and

the inoculation part is movably connected to the second connecting end of the connecting part, and a plurality of inoculation heads are uniformly distributed on the inoculation part away from the second connecting end.

2. A disposable inoculator as claimed in claim 1, characterised in that: the connecting part comprises a conical plastic connecting sleeve with a large upper part and a small lower part, a conical cavity at the inner side of the conical plastic connecting sleeve is the connecting cavity, and the lower end of the conical plastic connecting sleeve extends downwards to form a butt joint with a cylindrical structure.

3. A disposable inoculator as claimed in claim 2, characterised in that: the inoculation portion includes that the adaptation suit in flexible silica gel cover on the butt joint the bottom surface of flexible silica gel cover is gone up the coaxial support pole setting that has linked firmly, the lower extreme of supporting the pole setting has a plurality ofly along the circumference equipartition rather than mutually perpendicular horizontal extension pole, each the outer end of horizontal extension pole all links firmly a flexible silica gel ball.

4. A disposable inoculator as claimed in claim 3, characterised in that: the horizontal extension pole is four, the equipartition in support on the lower extreme outer wall of pole setting, flexible silica gel ball is four, and the one-to-one is linked firmly each on the horizontal extension pole.

5. A disposable inoculator as claimed in claim 3, characterised in that: the outer surface of the flexible silica gel ball is a rough surface.

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