RU2385684C1 - Syringe tube for viscous materials - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention concerns dentistry and can be used for storage and precise dosage of viscous materials. A syringe tube contains a hollow case with its distal part having a head piece with an internal canal and a cap. A screw joint connects a medial part of the case with a distal part of a handle of the case. The screw joint connects the medial part of the handle of the case with a piston. The piston is arranged in the hollow case. The medial end of the case has a piston handle, and the distal end comprises a connector. The connector is provided in a piston platform of the hollow case. The external surface of the piston is graduated. The piston platform has a rubber. The distal part of the head piece has an exhaust outlet of the canal and a flange 1-2.5 mm high. The flange has a side to determine a border of a supplied viscous material and a contact platform to deliver a portion of the viscous material.

EFFECT: technical effect of this invention is improved ease of use of the syringe tube for viscous materials, due to precise dosage of the material stored therein, reduced excessive consumption and possibility of accurate visual control of the remained portions in the syringe tube for viscous materials.

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Description

This invention relates to medicine and can be used in dentistry for the precise dosing and storage of viscous materials.

Known syringe tube for storage and supply of fluid and / or viscous materials. It consists of a hollow body, the distal part of which has a nozzle with an internal channel and a cap, the medial part of the body is connected to the distal part of the body handle using a threaded connection, and the medial part of the body handle is threadedly connected to a piston located inside the hollow body, the medial end which has a piston handle, and the distal end is a connector mounted in a piston pad located inside the hollow body [US Patent No. 6848906, AC 5/04, 02/01/2005].

The disadvantage of this invention is the lack of accurate dosing of portions of viscous material, the inability to accurately visual control the remaining portions of viscous material in the syringe tube.

The technical result of this invention is to increase the usability of the syringe tube for viscous materials by accurately dispensing portions of the viscous material stored in it, reducing its cost overruns and the ability to accurately visually monitor the remaining portions in the syringe tube for viscous materials.

The technical result is achieved in that in a syringe tube for viscous materials containing a hollow body, the distal part of which has a nozzle with an internal channel and a cap, the medial part of the body is connected to the distal part of the handle of the body using a threaded connection, and the medial part of the handle of the body with the threaded connection is connected to the piston located inside the hollow body, the medial end of which has a piston handle, and the distal end is a connector installed in the piston pad located inside logo of the housing, a distinctive feature is that in addition the external surface of the piston has a graduation, the piston pad has a rubber seal, and the distal part of the nozzle is made with an outlet channel and with a step height of 1-2.5 mm, and the step has a face for determining the boundary of the viscous feed material and a contact pad for separating a portion of the viscous material. It is desirable that the housing handle and piston handle have retention elements.

A syringe tube for viscous materials is intended for accurate dosing, storage and use of viscous materials (see figure 1 - syringe tube, longitudinal section; figure 2 - syringe tube, appearance). It consists of a hollow body (1), the distal part of which has a nozzle (2) with an internal channel (3), ending with a step (4), with a height of 1-2.5 mm, with a face (5) to determine the boundary of the supplied viscous material, the outlet ( 6) an arbitrary shape and size, a contact pad (7), which serves to separate a portion of a viscous material. The nozzle (2) is closed by a cap (8) with retention elements (9) applied to its outer surface. The cap (8) closes the nozzle (2) and protects the viscous material from the external environment. The medial part of the hollow body (10) is connected to the distal part (11) of the handle of the hollow body (12) by means of a threaded connection, the medial part of the handle of the hollow body (13) is connected by means of a threaded connection to a piston (14) located inside the hollow body (1) ) The handle of the hollow body (12) may have retention elements (15) on the outer surface. The medial end of the piston has a piston handle (16), and the distal end of the piston has a connector (17) installed in the piston pad (18) in the groove (19). The piston plate (18) is equipped with a rubber seal (20) and is located inside the hollow body (1). A graduation (21) is applied to the outer surface of the piston (14), which makes it possible to determine not only the portion size of the viscous material, but also the number of remaining portions of viscous material in the syringe tube. The piston (14), rotating with the help of the piston handle (16), preferably with retention elements (22) applied to its outer surface, moves in the hollow body (1), passes inside the handle of the hollow body (12) and pushes the piston pad (18) thus squeezing out viscous material.

A syringe tube for viscous materials can be made of both polymeric materials and metal, or a combination thereof.

The procedure for working with a syringe tube for viscous materials includes removing the cap, screwing the piston with the handle of the piston into the hollow body, holding the syringe tube by the handle, squeezing a portion of viscous material through the outlet when the material reaches the edge of the ledge, cutting a portion of viscous material with a tool drawing on the contact pad. The separated portion is used for its intended purpose. By means of graduation applied to the outer surface of the piston, both the control of the size of the fed portion and the number of remaining portions of viscous material in the syringe tube can be carried out. Upon completion of the cap is installed in place.

Example

Patient D. was admitted with complaints of the presence of a cavity, hypersensitivity of the tooth from sweets. Objectively: in tooth 1.6 there is a carious cavity on the chewing surface filled with softened carious dentin, percussion of the tooth is negative, the thermo test is slightly positive, sensitivity disappears immediately after elimination of the irritant. Carry out the cavity, treat enamel with 35% phosphoric acid for 15 seconds, dentin for 15 seconds, isolate the tooth from the oral fluid, dry the cavity with an air stream from the void, conduct cavity bonding, perform polymerization using a light-curing lamp for 10 seconds, and apply light-curing composite filling material to the cavity of the tooth. To do this, remove the cap from the syringe tube containing the composite light-curing filling material, screw the piston using the piston handle into the hollow body, holding the syringe tube by the handle, and squeeze the material through the outlet. When the material reaches the edge of the ledge (2 mm high), a portion of the material is cut with a stopper-ironer, relying on the contact pad. The separated portion is introduced into the tooth cavity, polymerization is carried out with a light-curing lamp for 20 s. Upon completion of the cap is installed in place. The surface of the obtained seal is ground and polished with special rubber disks.

Thus, the proposed syringe tube for viscous materials allows you to dose the viscous material into exact portions, control the consumption of viscous material according to the graduated scale, and store viscous materials protected from the effects of the external environment.

Claims (2)

1. A syringe tube for viscous materials, containing a hollow body, the distal part of which has a nozzle with an internal channel and a cap, the medial part of the body is connected to the distal part of the handle of the body using a threaded connection, and the medial part of the handle of the body using a threaded connection is connected to the piston located inside the hollow body, the medial end of which has a piston handle, and the distal end is a connector mounted in a piston pad located inside the hollow body, characterized in that the external the piston surface has a graduation, the piston pad has a rubber seal, and the distal part of the nozzle is made with an outlet of the channel and with a step height of 1-2.5 mm, and the step has a face for determining the boundary of the viscous material supplied and a contact area for separating a portion of viscous material. 2. The syringe tube according to claim 1, characterized in that the housing handle and piston handle have retention elements.

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