SU952254A1 - Apparatus for manufacturing epicutaneous bacterial samples - Google Patents

Description

(54) DEVICE FOR THE MANUFACTURE OF KEY BACTERIAL SAMPLES

one

This invention relates to medicine and can be used to make dermal bacterial samples, in particular, a tuberculin mark.

The prior art device for producing skin bacterial samples contains mechanisms for moving the substrate and the base, including a system of cam rolls, a punch for cutting the substrate and pressing it to the base, and a dosing unit for feeding the liquid bacterial sample 1.

A disadvantage of the known device is the lack of complex automation of the process of manufacturing skin bacterial samples, as a result of which the operations of drying the applied biological material, gluing the protective tape and cutting the finished form are carried out manually.

The purpose of the invention is to comprehensively automate the process of making skin bacterial samples.

This goal is achieved in that the device contains mechanisms for moving the substrate and the base, including a system of drive shafts with cams, a chip for cutting the substrate and pressing it to the base and a dispenser for feeding liquid

the bacterial sample is also provided with a drying chamber, a conveyor with trays for moving the substrate with the sample through the drying chamber, a mechanism for discrete movement of the protective tape, a mechanism for moving the substrate under the stamp and knives for cutting the substrate and the finished sample, while the conveyor is kinematically associated with the mechanism of discrete movement the substrate, a knife for cutting the latter, a mechanism for moving the substrate under the chip, a dispenser, a punch and mechanisms for moving the base and a protective tape, the dispenser being installed flax above the conveyor before suschilnoy camera, and is located on the conveyor schtamp exit lot15 kami from the drying chamber.

To increase the productivity of the device, the dispenser can be made in the form of a block that provides simultaneous application of several drops of liquid pre2Q parata on a piece of substrate material.

FIG. Figure 1 shows a kinematic diagram of a device for making skin bacterial samples: FIG. 2 shows section A-A in FIG. 3; in fig. 3 shows a section BB in FIG. 2; in fig. 4 shows the layout of the elements produced by the cutaneous bacterial sample device.

The presented structure consists of a frame on which an electric motor 1 with a gearbox 2 is mounted, to which a drive shaft 3 is attached with cams attached to it, which control the mechanisms of the device with the help of levers, t and rollers.

The cam 4 acts by means of the pawl 5 on the ratchet wheel 6 rigidly mounted on the axis 7 of the conveyor 8, thereby effecting the discrete movement of the conveyor belt with trays 9 attached to it.

The cam 10 controls the knife 11, which cuts off a piece of mylar tape 12 introduced into the tray 9, which is the substrate material for applying the bioactive material of the skin test.

The cam 13 acts on the clamping lever 14 of the movable carriage 15, the feed tape 12 of the substrate material of the samples in the tray 9.

The cam 16 interacts with the clamping lever 17 of the movable carriage 18, which removes a length of tape of the substrate material from the sample tray 9 and feeds it to the cutting cutter 19, which is controlled by the cam 20.

The cam 21 interacts with the knife 22, which cuts the waste tape 12 into pieces.

The cam 23 acts on the clamping lever 24 of the movable carriage 25, thereby moving the adhesive tape 26 and the protective tape 27 covering the dried bacterial sample drops and the adhesive layer of the adhesive tape.

The cam 28 controls the knife 29, cutting the required length of leuco plaster and protective tape.

In the upper part of the device, an existing chamber 30 is installed with a heating element located in it (not shown).

A microbridge unit 31 with a reservoir 32 for liquid biologically active material is located in front of the substance chamber above the conveyor. The unit 31 is controlled by a cam mounted on shaft 3. A conveyor 19 is located at the exit of the conveyor with trays from the actual chamber. Thus, the conveyor is kinematically connected with the mechanism of discrete movement of the substrate material, a knife for cutting it, a dosing unit, a clamp and moving mechanisms bases and protective tape.

The frame also contains a tape roll 33 with a substrate material of samples 12, a roll 34 with a adhesive tape 26 serving as a sample base, and a roll 35 with a protective tape 27, the width of which is taken 10-15 mm larger than the width of the adhesive tape, which is necessary as to ensure reliability

to protect the sample from contamination and to prevent the adhesive plaster from sticking to the knife when cutting the finished form of the target product.

The operation of the device is as follows.

. A tape of the substrate material of the samples 12 by the movable carriage 15 and the presser lever 14 is inserted into the inside of the tray 9. After filling the entire tray along the length of the tray

It is cut with a knife and with an allowance of 4-8 mm (an allowance is necessary to grip the tape when it is removed from the tray). Then, the entire length of the tape section inserted into the tray is micro-disassembled by the micro-dispenser unit 31, a number of drops of liquid are simultaneously applied

of the bacterial sample, after which the tray 9 is conveyed by the conveyor 8 to the existent chamber 30. On leaving the existing chamber, from the tray 9 is removed a piece of tape of the substrate material with droplets dried on it.

The main elements of the removal mechanism of the said belt are the lever 17 and the movable carriage 18. In this case, the clamping lever 17 will interact with the help of the levers c. cam 16, performs clamping to the movable carriage 18 of the segment of the removable

the tape and moving it to the chip maker 19. At the beginning of the removal of a piece of tape from tray 9, the pressure lever 17 seizes it by the left allowance (projecting, as noted above, 4-8 mm beyond the edge of tray 9) and, pressing it to the movable carriage 18,

moves together with the latter in the direction to the chip 19 on the schag, equal to the distance between the centers of the dried drops. Upon subsequent removal, the presser lever 17 captures a portion of the substrate tape in the gap between the dried drops 37. This happens until the entire length of the strip of substrate material is removed from the tray. After that, the conveyor 8 will move to the schag and the process of removing the next strip of tape from the other will begin.

tray. The same mechanism directs these tape segments under the cutting, chip 19, which cuts the substrate in the form of a disk 36 with the dried material 37 of the biologically active material located in the center of the disk. At the same time, the punch shtampa moves the cut-down disk through the shtamp matrix to the adhesive layer of the adhesive tape 26 located under the matrix, and presses the disk to this adhesive layer. In this way, the substrate is adhered with a drop of the preparation applied to the adhesive base.

After cutting the discs, the waste tape 12 goes to the knife 22, which crushes them to facilitate the collection of waste.

The clamping lever 24 and the movable carriage 25 capture and move simultaneously the adhesive plaster 26 and the protective 27 tapes. The material of the protective tape can be cellophane. Protective

the tape 27, the passage from the reel 35 under the roller, is pressed against the adhesive tape 26 and glued to it, covering dried bacterial sample droplets and an adhesive layer of adhesive tape on top. Then the knife 29, controlled by cam 28, cuts the collected preparation into pieces with the required number of samples.

The device allows the production of skin bacterial samples in automatic mode. At the same time, automation of the drying of a bacterial sample, a sticker of protective tape and cutting of finished products are also provided.

With reference to the manufacture of a tuberculin mark, the device has a productivity of at least 3 million percutaneous bacterial samples per year.

Claims (1)

Invention Formula A device for the manufacture of bacterial cutaneous samples containing mechanisms for moving the substrate and base, including a system of drive shafts with Cams, a punching plate for cutting out the substrate and pressing it to an oskovaniye and a dispenser for supplying a liquid bacteriological test: characterized in that, for the purpose of integrated automatization of the process of making skin bacterial samples, it is equipped with a drying chamber, a conveyor with trays for passing through the drying camera substrate with a nrob, discrete pers. mechanism; eletseits protective tape, the mechanism for moving the substrate under stamp and knives for cutting the substrate and the finished sample, while the conveyor is kinematically connected with the mechanism of discrete movement of the substrate, the knife for cutting the latter, the mechanism for moving the substrate under the stamp, dispenser, stamp and mechanisms for moving the base and protective tape, and the dispenser is installed above the conveyor in front of the main camera, and the stamp is located at the exit of the conveyor with trays from the main camera. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 167966, cl. A 61 J 3/00, 1965. ue.S m -J TO FIG. five 373621 Z6 / / / / .