RU2457869C1 - Dispenser device - Google Patents

Abstract

FIELD: medicine. ^ SUBSTANCE: invention refers to medicine, namely ophthalmology, and may be used for the introduction (delivery) of liquid or gel substances into the exposure point. A dispenser device consists of a hollow cylindrical body, a chamber and a transfer mechanism. The body is open-faced. The body comprises a hole started from one of the faces. From this face it comprises two identical and parallel paths at the distance of one-third length of the entire body. The paths extend inside the body on its side surface, lay in a surface parallel to the face. A bar reciprocating along the paths is arranged perpendicularly between the paths at their free ends. A spring is mounted in each path above the bar. The body space starting from its open end with the hole to the paths with the bar forms a chamber for a cartridge with a substance. A cartridge shape is congruent with the chamber. One face of the cartridge is closed and provided with a cannula. The other face is closed with a detachable protective film and faces the bar. The cartridge has a handle congruent with the body hole. From the opposite body face, a piston is tightly inserted and has a line of teeth of a line length equal to a cartridge length and a height equal to a path half-length on the front end on its side surface along a generatrix. The teeth together with the paths and the bar form a transfer rachet. From the opposite side of the piston, the teeth line is followed by a graduated scale one division of which is equal to a tooth pitch. A piston end comprises a position scale. ^ EFFECT: more precise dosages of the substance in each specific case, prevented excessive consumption in case of adverse actions of some preparations and in case of using expensive substances. ^ 2 cl, 4 dwg

Description

The invention relates to the field of medicine, namely ophthalmology, and can be used for the introduction (delivery) of liquid or gel-like substances at the site of exposure.

In ophthalmic surgery, various medicinal substances are introduced into the area of the operation. There are different ways to deliver these substances.

A device is known - it is a multiple dispenser for minimum doses, described in RF patent 2348013. The essence of the invention is that the dispenser comprises a housing that has an outlet located in the housing or on the housing, a dosage unit connected to the outlet, and also located in the housing or on the housing and connected to the metering unit, a reservoir for the medium. According to the invention, a metering shaft is located in the housing, which in some areas is surrounded by a transmission shaft, in which a transport groove is made to guide the control element, which passes through the groove into the housing.

But such a dispenser is expensive and difficult to manufacture, as it has many parts, requires qualified assembly.

A dispensing device was created in which a disposable cartridge with a certain amount of a given substance is inserted, with the possibility of regulating the output volume; whose tasks are:

- ease of manufacture (few parts);

- preservation of the sterility of the drug;

- for drugs with a limited duration of storage after opening the sealed vial, it retains their activity, which is achieved by the minimum contact time of the substance with air;

- allows you to accurately dose the volume of the substance introduced into the exposure zone, thereby preventing side effects of an overdose of the substance used and cost overrun of the expensive drug.

The technical result of the invention is to increase the accuracy of the dosage of the substance in each case, to prevent its overspending in case of side effects of certain drugs and in the case of the use of expensive substances.

The technical result is achieved by the fact that in a device for dispensing substances consisting of a hollow cylindrical body, a chamber, a transmission mechanism, according to the invention, the body is made with open ends, in the housing, starting from one of the ends, a hole is made, from the side of this end, at a distance one third of the length of the entire body, two identical and parallel tracks are installed in it, they start inside the body on its side surface, lie in a plane parallel to the end, between the tracks, they are free x ends installed perpendicular to them strap, with the possibility of its reciprocating motion along the tracks; a spring is located in each track above the strap, and the housing space, starting from its open end with an opening to the tracks with a strap, forms a chamber for a cartridge with a substance, the shape of the cartridge is congruent to the camera, while one end of the cartridge is closed, equipped with an outlet cannula, the other the end face is closed with a tear-off protective film, facing the side of the strap, the cartridge is equipped with a handle, a congruent hole in the housing; from the opposite end of the housing, a piston is tightly inserted into it, on the front end of which, on its lateral surface, along the generatrix, teeth are arranged in a row in a row with a row length equal to the length of the cartridge and a height equal to half the length of the track, while the teeth along with the tracks and the bar forms a ratchet gear, on the opposite, protruding side of the piston, after a series of cloves, there is a graduated scale, one division of which is equal to the pitch of the clove, and at the end of the piston is the scale of its position.

The teeth can be made inclined towards the graduated scale.

One of the variants of the device is one in which the hole is made in such a way that its two sides are parallel to the generatrix of the housing, and the third side lies in a plane parallel to the end face.

The invention is illustrated Fig.1-4. Figure 1 shows a General view of the dispensing device, Figure 2 is a side view of the cartridge and in a slice, Figure 3 shows the housing and piston, a top view, Figure 4 is a ratchet mechanism.

The device consists of a cylindrical hollow body 1 with open ends 2, 3, made of polymer. In the housing 1, starting from one of the ends 2, a hole 4 is made, the two sides of which are parallel to the generatrix of the housing, and the third side lies in a plane parallel to the end. At a distance of one third of the length of the entire housing from the open end 2, two identical tracks are installed in the housing 1, parallel to each other 5. They begin inside the housing 1 on its side surface at a distance of 90-100 angular degrees from each other, lie in a plane parallel to the end face . Between the tracks 5, at their free ends there is a bar 6 perpendicular to them, with the possibility of its reciprocating movement along these tracks towards the generatrix of the housing 1. In each track 5 above the bar 6 there is a spring 7, which prevents the free run of the bar 6 upward. The space of the housing 1, starting from its open end 2 with the hole 4 to the tracks 5 and the strap 6, forms a chamber 8 for the cartridge 9 with the substance. The shape of the cartridge 9 is congruent (corresponds to) the chamber 8, while one end of the cartridge is closed, equipped with an outlet cannula 10, the other end is closed with a tear-off protective film 11, facing the side of the strip 6. The cartridge 9 is equipped with a handle 12, a congruent hole 4 of the housing 1. C the opposite end 3 of the housing 1, a piston 13 is tightly coaxially inserted into it, at the front end of which, on its lateral surface, along the generatrix, teeth 14 are located in a row with a row length equal to the length of the cartridge 9. The height of each tooth is half the length of the track 5. Teeth14 together with tracks 5 and strap 6 form a ratchet gear. On the opposite, protruding side of the piston 13, after a series of teeth 14, there is a graduated scale 15, one division of which is equal to the pitch of the tooth 14, and at the end of the piston 13 there is a scale of its position 16.

The device operates as follows. A cartridge 9 with a substance is inserted into the housing 1 with the piston 13. Preliminarily, the protective film 11 is removed from the cartridge 9. The piston 13 is mounted on a scale 16 to the first position at which the projection of the bar on the piston 13 generatrix, on which the teeth 14 are located, is perpendicular to it and symmetrical with respect to it. When pressing on the piston 13 in this position, when the bar 6 is located above the teeth 14 of the piston 13, the bar 6 slides along each clove 14, jumping from one to the other, thus, the necessary and sufficient volume of substance is brought into the impact zone. In this case, the advancement of the piston 13 by one tooth 14 sets the output of a certain amount of substance corresponding to the graduated scale 15. In this position of the piston 13, the plank 6 blocks its backward stroke.

When using all of the active substance, the cartridge 9 is removed from the housing 1. Install the piston 13 in the second position by turning it 180 degrees in any direction. The teeth 14 of the piston 13 are turned downward, the bar 6 does not interfere with the movement of the piston 13 away from the cartridge 9, and it is freely pulled in the direction from the cartridge 9.

Thus, the piston 13 carries out forward-backward and rotational right-left movements.

The proposed device provides a rational (economical) expenditure of the substance used, the introduction of the necessary volume (amount) of the substance, avoiding undesirable side effects associated with its excess, maintaining the activity and sterility of the substance when fed with the device into the formed bed.

Claims (2)

1. A device for dispensing substances, consisting of a hollow cylindrical body, a chamber, a transmission mechanism, characterized in that the housing is made with open ends, in the housing, starting from one of the ends, a hole is made, from the side of this end, at a distance of one third of the length case, two identical and parallel tracks are installed in it, they start inside the case on its lateral surface, lie in a plane parallel to the end, between the tracks, at their free ends there is perpendicular to them strap, with the possibility of its reciprocating movement along the tracks; a spring is located in each track above the strap, and the housing space, starting from its open end with an opening to the tracks with a strap, forms a chamber for a cartridge with a substance, the shape of the cartridge is congruent to the camera, while one end of the cartridge is closed, equipped with an outlet cannula, the other the end face is closed with a tear-off protective film, facing the side of the strap, the cartridge is equipped with a handle, a congruent hole in the housing; from the opposite end of the housing, a piston is tightly inserted into it, at the front end of which, on its lateral surface, along the generatrix, teeth are arranged in a row in a row with a row length equal to the length of the cartridge and a height equal to half the length of the track, while the teeth along with the tracks and the ratchet form a ratchet gear, on the opposite side of the piston after a series of teeth there is a graduated scale, one division of which is equal to the pitch of the tooth, and at the end of the piston is the scale of its position. 2. The device according to claim 1, characterized in that the hole is made in such a way that its two sides are parallel to the generatrix of the housing, and the third side lies in a plane parallel to the end face.

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