RU181542U1 - Karpulny dental syringe injector - Google Patents

Abstract

The invention relates to medical equipment, namely, devices for subcutaneous, intravenous and intraosseous injections of liquid drugs in carpules used for single injections, in particular for local anesthesia in dentistry. The technical result of this utility model is to increase the safety of the syringe injector during the injection procedure. A karpulny dental syringe-injector, consisting of a cylindrical body with finger rests and having a clamping sleeve with an opening for moving the stop-stop, a tip and a rubber seal, a medicine capsule, a removable cylindrical sleeve connecting the case with the double-edged needle attachment unit. On the one hand, a fixing groove is made on the cylindrical body of the syringe-injector, and an annular protrusion and a step are made on the inner surface of the pressure sleeve for fixing the capsule with the pressure sleeve in the body of the syringe-injector, and on the opposite side, a protrusion for the syringe-injector is made installation and fixing on it a removable cylindrical sleeve on which a safety groove is made. In a karpulny dental syringe-injector one of the stops for the fingers can be made in the form of a it is. 7 ill.

Description

The utility model relates to the field of medicine, namely to the field of medical technology, namely to devices for subcutaneous, intramuscular and intraosseous administration of liquid drugs, in particular for local anesthesia in dentistry.

Known karpulny disposable dental syringe containing a cylindrical body, at one end equipped with stops for the fingers and a hole on the end for installation with the ability to move the rod stop with a rod-shaped tip, at the opposite end equipped with a sleeve for a double-edged needle, karpulu installed in the housing with the possibility of contact of the piston of the carpula and the tip of the rod-stop, and the fastening element with a double-edged injection needle. The sleeve for a double-edged needle is made with the possibility of screwing on it a fastening element with a double-edged injection needle and the protective cap of the needle is installed, the hole of the karpula with the hole for holding the rod stop located opposite the piston end of the karpula has a metal cap on the case the syringe has a retractable protective cap that repeats the shape of the case, mounted to move along it, extend the entire length of the injection needle and fix on the syringe body by means of fixing elements constituting the locking assembly. (RU, Patent ПМ №93681, CL А61М 5/24, published. 05/10/2010)

The disadvantage of the above technical solution is the complexity of the process of extracting the injection needle for disposal.

The closest in technical essence and the achieved technical result is a karpulny dental syringe-injector, consisting of a cylindrical body with stops for fingers, and having a clamping sleeve, with a hole for moving the rod-stop, a tip and a rubber seal, a medicine capsule, a removable cylindrical a sleeve connecting the housing to the double-needle needle attachment unit (RU, PM Patent, No. 163405 class A61M 5/24 of December 18, 2015).

The described construction has disadvantages.

During the suction test, the stop-rod, equipped with a tip and a rubber seal, moves in the opposite direction and touches the pressure sleeve installed on the end of the body, from the side of the stop-handle and pushes it from the installed place, the case of the syringe injector and the pressure sleeve are disconnected, which leads to prolapse of the carpula and, as a consequence, the destruction of the injector syringe. In addition, when replacing the needle, the removable sleeve is twisted together with the needle. There is a disconnection of the removable sleeve and the body of the syringe-injector.

The objective of the utility model is to increase the safety of the syringe-injector during the injection procedure.

The technical result is achieved by the fact that the karpulny dental syringe injector, consisting of a cylindrical body with stops for fingers, and having a pressure sleeve, with a hole for moving the rod stop, tip and rubber seal, karpula with medicine, removable cylindrical sleeve connecting the case with a knot of fastening of a double-edged needle according to the utility model, on one side, a fixing groove is made on the cylindrical body of the syringe-injector, and on the inner surface of the pressure sleeve, an annular protrusion and a ledge are provided for fixing the capsule with the clamping sleeve into the body of the syringe-injector, and on the opposite side, a protrusion is made on the cylindrical body of the syringe-injector for mounting and fixing on it a removable cylindrical sleeve on which the safety groove is made.

An example of a utility model is illustrated by drawings.

In FIG. 1 shows the individual parts of the injection syringe: in FIG. 2, FIG. 3 sleeve with the possibility of installing and fixing in it karpuly with a drug with an annular protrusion and a ledge on the inner surface and a slot on the body. In FIG. 4 removable sleeve with a T-groove on a cylindrical body, a double-pointed needle mount and a system for fixing the protective cap on the body of the removable sleeve. In FIG. 5 a cylindrical body of an injector syringe with an opening at the end, an L-shaped groove on the side of the stop handle and a protrusion on the side of the removable sleeve, in FIG. 6 shows a karpulny dental injector.

The disposable karbul injector consists of a cylindrical body 1 (Fig. 5) with finger rests with protrusions 2 (Fig. 5), an L-shaped groove 3 (Fig. 5), on the side of the stop-handle 2 (Fig. 5) and an opening at the end of the housing 4 (Fig. 5) to install the clamping sleeve 5 (Fig. 2). The clamping sleeve 5 (Fig. 2), with a hole 10 (Fig. 2) for moving the stop-rod 11 in it (Fig. 3) with a tip 12 (Fig. 3), a rubber seal 13 (Fig. 3), an annular protrusion 6 (Fig. 2) with a step 24 (Fig. 2), on the inner surface for mounting the carpule 7 (Fig. 3), and a protrusion 9 (Fig. 2) with a slot 8 (Fig. 2), is made with the possibility of entry and fixation in the L-shaped groove 3 (Fig. 5) of the cylindrical body of the syringe-injector. At the opposite end of the housing 1 (Fig. 5) there is an opening 14 (Fig. 5) a visual inspection window 15 (Fig. 5) and a protrusion 16 of Fig. 5) for fixing on it a removable sleeve 17 (Fig. 4) made in the form of a cylinder with a fuse in the form of a T-groove 18 (Fig. 4). In front of the removable sleeve there is a movement limiter of the protective cap in the form of a disk 19 (Fig. 4) with protrusions 20 (Fig. 4) and a node 21 (Fig. 4) made with the possibility of threaded fastening on it a double-edged needle 22 (Fig. 1) . On the body of the removable sleeve, the protrusion 23 (Fig. 4) for fixing the protective cap. The protective cap 32 (Fig. 1) having the shape of a cylinder is made to move along the body of the injector syringe, on the inner surface of the protective cap there is a protrusion around the circumference 25 (Fig. 1) and longitudinal protrusions 26 (Fig. 1) along the body of the protective cap.

To fix the syringe-injector in a certain position in order to increase the accuracy of introducing the drug into the necessary zone in FIG. 7, one of the finger rests is made in the form of a ring.

The assembly of the injector syringe is as follows. In the hole 10 (Fig. 2) of the clamping sleeve 5 (Fig. 2), the stop stop 11 (Fig. 3) is inserted into the groove 27 (Fig. 3) of the stop stop a rubber seal 13 is installed (Fig. 3). The clamping sleeve 5 (Fig. 2) with a protrusion 9 (Fig. 2) is mounted on the body of the syringe-injector in the slot 3 (Fig. 5) and fixed.

On the other side of the body of the syringe-injector, the protective cap 32 (Fig. 1) is inserted alternately with the side having a protrusion around the circumference 25 (Fig. 1) and the removable sleeve 17 (Fig. 4) with the side having a fuse - T-slot and is fixed on the syringe body -inector.

Preparing for work. The clamping sleeve 5 (Fig. 2) is removed, with the stop 11 (Fig. 3) inserted into it and the rubber seal 13 (Fig. 3) at the end, a medicine capsule with a side that has a rubber piston 31 (Fig. 3) is installed ), while passing the karpula deep into the clamping sleeve, the protrusion 6 (Fig. 2) expands due to the slot 8 (Fig. 2) on the body of the clamping sleeve 5 (Fig. 2), and the carpule abuts against the ledge 24 (Fig. 2) and fixed in the clamping sleeve. The clamping sleeve with the medicinal product installed in it and the rod stop is inserted into the cylindrical body of the syringe-injector with the side of the capsule which is closed with a rubber cover 28 (Fig. 3) and a metal cap with a hole 29 (Fig. 3), with the protrusion 9 (Fig. 3). 2) on the housing of the clamping sleeve, enters the groove 3 (Fig. 5) of the injector body and is fixed in the L-shaped groove of the body. On the node 21 (Fig. 4) of the removable sleeve is fixed using a threaded connection double-edged needle 22 (Fig. 1). In this case, the removable sleeve 17 (Fig. 4) scrolls and the protrusion 16 (Fig. 5), on the body of the syringe-injector, abuts against the edge of the T-shaped fuse 18 (Fig. 4) on the body of the removable sleeve, without interfering with the fixing and securing a double-edged needle on the node 21 (Fig. 4).

The syringe is ready for use.

When pressure is applied to the stop-rod 11, pressure is transmitted to the rubber stem of the carpula, under the action of this force, the rubber piston of the carpula begins to move into the end of the capsule, squeezing the drug through a double-edged needle into the initiated zone. During the suction test, the stop-rod moves in the opposite direction and when the rubber seal touches the clamping sleeve, the clamping sleeve connected to the body of the syringe-injector by means of a clamping connection eliminates the possibility of disconnecting the clamping sleeve with the drug fixed in it with the body of the syringe-injector.

Replacement of the needle is carried out in the following sequence. The protective cap of the syringe-injector is pulled out, which protects personnel from accidental injuries with an infected needle, the protective cap of the needle 30 is installed on the needle, the protective cap of the syringe-injector is returned to its original position, the used needle is removed, a new one is installed, while the removable sleeve scrolls and rests against the edge of the fuse on the removable sleeve, and the protrusion 16, on the body of the syringe injector prevents the disconnection of the removable sleeve with the housing of the syringe injector.

A positive effect is achieved by connecting the removable sleeve with the body of the syringe-injector. This connection eliminates the possibility of disconnecting the removable sleeve and the body of the syringe-injector during the replacement of the injection needle.

After the end of the injection procedure, to remove the infected needle, it is necessary to extend the protective cap of the syringe-injector to the extreme position until it clicks, turn the protective cap to the middle position and remove the removable sleeve together with the protective cap and infected needle for further disinfection and disposal. On the opposite side of the syringe-injector, the pressure sleeve with the medicinal product installed in it is removed for further disinfection and disposal.

Claims (2)

1. A karpulny dental syringe-injector comprising a cylindrical body with finger rests, a pressure sleeve with a hole, a stop-rod with a tip and a rubber seal, made with the possibility of movement in the hole of the pressure sleeve, a medicine capsule, a protective cap of the injector syringe, made in the form of a cylinder with the ability to move along the body of the syringe-injector, containing on the inner surface a protrusion around the circumference and longitudinal protrusions for fixing with the body of the syringe-injector a sharp needle with a protective cap fixed on it, a removable cylindrical sleeve connecting the case to the double-edged needle attachment unit, characterized in that on one side there is a fixing groove on the cylindrical body of the syringe injector, adapted to interact with a protrusion on the pressure sleeve body, and on the opposite side on the cylindrical body of the syringe injector there is a protrusion made with the possibility of interaction with the safety groove of the removable cylindrical sleeve for installation and iksatsii latter, wherein on the inner surface of the clamping sleeve and an annular projection formed ledge for fixing the cartridge. 2. The karpulny dental syringe injector according to claim 1, characterized in that one of the finger rests is made in the form of a ring.

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