RU66958U1 - ROTARY DENTAL SYRINGE - Google Patents

Abstract

A useful model is a dental karpulny syringe for performing intraseptic (intracranial) anesthesia of teeth during dental procedures. The difference from the known syringes is that the syringe body is rotated with a needle fixed on it to facilitate perforation of the cortical plate of the intraseptic septum of the tooth. When pressing the piston of the syringe with a finger, which is a spiral-shaped rod, the rotational movement is transmitted to the body with the needle through an insert fixed to the syringe body. The support for the fingers with the piston remains stationary, and the body of the syringe with the needle and karpula rotates. A plastic ring is used to reduce friction between the body and the palm rest. During rotational movement, the needle perforates the cortical plate of the intraseptic septum more easily.

Description

The utility model relates to medicine, namely to dentistry. The product is intended for intraseptal anesthesia during anesthesia of dental procedures.

To date, the following analogues are known:

I. DENTAL SYRINGE patent No. 2004115638 dated 2005.03.10 author LI Alexander (US). A syringe for administering an anesthetic in a medical ampoule containing:

- a housing that has a needle and stem parts connected together by a main body portion, and to which a rod assembly is attached, comprising a stem and located in the rod body portion;

- groove for the ampoule, made in the housing and having dimensions that allow you to place a medical ampoule in it;

- a groove for the node containing the needle, made in the main part of the body from the side of the needle part and designed to receive the node containing the needle, on the side of the main part of the body;

- a saddle located in the specified needle portion and designed to receive and place in the housing the corresponding mounting part of the node containing the needle;

moreover, when the rod is inserted into the ampoule body, it is impaled on the piercer of the node containing the needle, and this node itself is firmly fixed.

Dental syringe system for administering an anesthetic in a medical ampoule:

- a housing that has a needle and stem parts connected together by a main body portion, and to which a rod assembly is attached, comprising a stem and located in the rod body portion;

- groove for the ampoule, made in the housing and having dimensions that allow you to place a medical ampoule in it;

- a node containing a needle, including:

- a needle;

- conical installation part;

- a piercer located on the opposite side of the needle;

- a piercer cap; and

- a needle cap connected to the piercer cap for complete closure and protection of the node containing the needle;

- a groove for the node containing the needle, made in the main part of the body from the side of the needle part and designed to receive the node containing the needle, on the side of the main part of the body;

- a saddle located in the specified needle portion and having the appropriate shape for receiving and placing the conical mounting part in the housing;

moreover, when the rod is inserted into the ampoule body, it is impaled on the piercer of the node containing the needle, and this node itself is firmly fixed.

A method of using a dental syringe, comprising the following operations:

- taking a hand with a dental syringe designed to administer an anesthetic contained in a medical ampoule and containing a body that has a needle and rod parts connected together by the main body part, and to which a rod assembly is connected, containing the rod and located in the rod body part;

and a groove for the ampoule, made in the housing and having dimensions that allow you to place a medical ampoule in it;

- pulling the rod to the limit;

- removing the piercer cap from the node containing the needle, exposing the installation part of this node;

- moving the installation part of the node containing the needle through the groove for the node containing the needle, made in the housing;

- fixing the installation part of the node containing the needle on the saddle of the casing with a strong fixation of the node containing the needle in the body due to the conjugation of the conical surfaces of the node containing the needle and the body;

- insertion of a medical ampoule through a groove in the body;

- input of a rod for glowing a medical ampoule to a piercer;

- removing the cap from the needle;

- the introduction of drugs contained in a medical ampoule;

- pulling the needle; and

- moving the medical ampoule in the direction of the stem to remove the stem and the node containing the needle, with a view to their disposal.

The described syringe is used when conducting conduction and infiltration anesthesia in soft tissues. For intraseptic anesthesia, it is necessary to perforate the cortical plate in the region of the interdental papilla. The use of this syringe does not allow to perforate the cortical bone plate without additional efforts causing significant pain.

II. DENTAL SYRINGE patent No. 93046867/14 dated 1995.03.27 authors Butuzov B.C., Shugailov I.A.

The syringe consists of a housing and a hollow cylindrical nozzle connected with a connector. Inside the housing there is a rod with ratchet teeth. The rod kinematically through a number of elements connected with a rotary handle. At the other end of the nozzle, using a fastener made in the form of a hollow ball with a slot and a holder, a double-edged needle is fixed, which can change its working position in the sector up to 180 °. Dosed administration of anesthetic fluid is provided at any desired angle.

The disadvantage of the syringe is that it is intended only for intraligamentary (intracircular) anesthesia due to the developed high pressure. For perforation of the cortical plate, it is necessary to exert additional force on the needle during perforation of the bone surface, which can lead to bending and breakage of the needle.

III. DENTAL SYRINGE-AMPULA patent No.2003132815 / 14 dated 2005.01.27 authors Petrikas A.Zh. (RU), Demidova M.A. (RU), Abovyan R.A. (RU), Yakupova L.A. (RU). Its essence:

The dental syringe ampoule consists of a cylindrical body with an anesthetic solution with a needle soldered into its front end. At the back, the housing is closed by an elastic piston-plug with a cylindrical channel in the center ending with a cavity in the shape of a truncated cone. The plug piston is pivotally connected to a replaceable handle starting with a cylinder-shaped pusher with a spherically thickened tip. The length and diameter of the cylindrical part of the interchangeable handle corresponds to the length and diameter of the channel with a truncated-conical cavity of the piston-plug. The replaceable handle ends with a finger rest and contains 4 guide vanes forming a flat platform abutting against the piston plug. For infiltration injections, the capacity of the syringe ampoule is 1.2 ml, the needle gauge is 0.3 mm, its length is 21 mm, and for conductive injections the capacity is 2.5 ml, the needle gauge is 0.4 mm, its length is 32 mm. 1 ill.

The disadvantages include the fact that with this syringe it is difficult to perforate the cortical plate during intraseptic anesthesia.

IV. DISPOSABLE SYRINGE D patent No. 2004105134/14 dated 2005.07.20 author Sosnov Dmitry Evgenievich (RU).

A disposable syringe consisting of a housing in which a piston and a rod are connected, connected by a connecting element, and a needle with an axial channel communicating with the cavity of the housing, characterized in that

the connecting element is a cylindrical body connected to the rod by a device that allows them to rotate one relative to the other, two hooks are fixed on the connecting element and there is an oblique groove, and the piston has two vertical protrusions in the back that abut the hooks of the connecting element and a finger fixed near the beginning of the oblique groove.

In this syringe, the connecting element rotates from the stem for drug delivery, the disadvantage is that in order to facilitate perforation of the cortical plate, the needle must be rotated.

V. SYRINGE LEVER-PLUNGE patent No. 2001124614/06 dated 2003.05.10 authors Zavarzin Andrey Timofeevich, Podchinok Vasily Mikhailovich, Vaganov Roman Pavlovich, Ischenko Andrey Grigoryevich.

The syringe is characterized in that guide grooves are made along the entire length of the internal cavity of the lubricating cylinder, and a groove and recesses are made in the piston along the outer generatrix of the diameter, in which the balls are installed with the possibility of rotational movement, while in the groove there is a sealing cuff with oil extraction protrusions included in grooves of the lubricating cylinder.

In this syringe, a piston is rotated associated with the rod for supplying the drug, the disadvantage is the need to rotate the needle to facilitate perforation of the cortical plate.

The purpose of creating our utility model is a dental karpulny syringe for performing intraseptic (intracranial) anesthesia of teeth during dental procedures. Due to the use of the proposed utility model, infiltration anesthesia of the mucosa at the injection site and intraseptic anesthesia are performed simultaneously with a single syringe.

The technical result consists in the possibility of rotation of the syringe body with a needle fixed on it relative to the fixed support for the fingers. Anesthesia using our

the device is effective (anesthesia occurs immediately or after 30 seconds), simply performed, less traumatic and is not accompanied by post-injection pain.

The technical result is achieved by changing the design of the piston of figure 1 (1) karpulnogo syringe, which looks like a spiral. The insert of FIG. 1 (2) corresponding to the piston spiral, which is rigidly fixed in the housing due to the locking pins of FIG. 1 (3), is fixed into the syringe body. When pressing the piston support, made, for example, in the form of the ring of Fig. 1 (6), the spiral-rotational movement of the spiral piston occurs, transmitted due to the presence of an insert on the syringe body with a syringe and fixed to the housing in a replaceable assembly for fixing Fig. 1 ( 5) a needle. To reduce friction between the body and the support for the fingers, a ring is made of materials with increased elasticity, for example, the plastic of figure 1 (4). During rotational movement, the needle perforates the cortical plate of the intraseptal septum more easily. The assembled syringe is presented in figure 2.

The syringe can be made on the basis of standard factory manufacturing of the product, and is supplemented by a piston modified by our design and an insert fixed in the housing, which allows the rotational movement to be transmitted to the syringe body from the piston when pressed on the latter. Thus, the unification with the produced syringes is preserved in the presence of significant technical differences.

Bibliography:

Patent No. 2004115638 dated 2005.03.10 (US) DENTAL SYRINGE (LEE Alexander)

patent No. 93046867/14 dated 1995.03.27 (RU) DENTAL SYRINGE (Butuzov B.C., Shugailov I.A.)

Patent No. 2003132815/14 dated 2005.01.27 (RU) DENTAL SYRINGE-AMPULA (Petrikas A.Zh., Demidova M.A., Abovyan R.A., Yakupova L.A.)

Patent No. 2001124614/06 dated 2003.05.10 (RU) SYRINGE LEVER-PLUNGER (Zavarzin A.T., Podchinok V.M., Vaganov R.P., Ischenko A.G.)

Claims (7)

1. Dental karpulny syringe for intraseptic (intracranial) anesthesia, characterized in that the piston is made in the form of a spiral, allowing the syringe body to rotate with the needle fixed to it relative to the fixed support. 2. The device according to claim 1, characterized in that the support for the implementation of pressure, which can be made, for example, in the form of a ring, is rigidly fixed to the spiral piston. 3. The device according to claim 1, characterized by the presence of a special insert, the outer diameter of which corresponds to the inner diameter of the syringe body, which allows to transmit rotational motion to the syringe body from the piston when pressed on the latter. 4. The device according to claim 4, characterized in that the inner surface of the insert is congruent with the spiral surface of the rod. 5. The device according to claim 4, characterized in that the insert can be made as a whole, or divided into parts along the axis to facilitate assembly-disassembly of the syringe. 6. The device according to claim 1, characterized in the presence in the housing of at least two holes for the locking pins for fixing a special insert. 7. The device according to claim 1, characterized by the presence of a ring made of elastic materials, designed to reduce friction during rotation of the syringe body relative to the support for the fingers.