RU2497480C1 - Device for delivering gutta-percha, absorbing, glass fibre points - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to dental instruments and can be used for by piece delivery of gutta-percha, absorbing, glass fibre points of various sizes and obliquity ISO in obliteration of dental root canals. Device contains case, made of fireproof plastic, withstanding sterilising processing and autoclaving, provided with canal with pusher, canal of point delivery, cartridge for points, which in transverse section has the shape of rectangle, changing into truncated cone, changing into rectangle with width equal to point diameter and mechanism of point separation, which includes drum, located at the bottom of cartridge and fixed with possibility of rotation in case, provided from one side with wheel, fixed rigidly on its axis. Longitudinal grooves corresponding to point diameter and length, evenly located on external cylindrical surface, are made on drum. Longitudinal grooves made on drum coincide with cartridge output opening in upper position and with canal of point delivery in lower position. Canal with pushing is made vertical. Pusher is installed in it perpendicular to drum axis with possibility of interaction with drum wheel and is spring-loaded with respect to case. Cut, which facilitates point gripping, is made in delivery canal base.

EFFECT: simplification of construction with preservation of application convenience, duration of preservation of point sterility and acceleration of treatment.

Description

The technical solution relates to medicine, namely to dental instruments, and can be used for the single-piece issuance of gutta-percha, absorbent, fiberglass pins of different sizes and tapers ISO for obstruction of the root canals of the tooth.

The pin feeding devices are known in mechanical engineering, for example, a device containing a housing with a piston located in the guide channel, a mechanism for separating and issuing one pin in the form of a lever - a cutoff device and a cassette for pins, mounted on the housing (see.c., SU No. 1414615, IPC V25C 5/16).

Known devices are bulky, complex in design.

It is known that at present in dentistry, the supply of pins of various types and sizes is made individually by grabbing them with tweezers from round, cylindrical or square boxes with the preliminary opening of the boxes.

The capture of pins with tweezers does not always give a single issue, in view of their small size, while their sterility is violated as a result of the frequent opening and closing of the boxes for storage. In addition, the time for treatment of the patient increases when it is difficult to open the ground lids of the boxes and when opening several boxes alternately during treatment, if necessary, use different types and sizes of pins.

The closest technical solution to the claimed one is a device for issuing pins containing a housing provided with a longitudinal channel with a piston and two handles, one of the handles is hollow, pivotally attached to the end face of the body, pivotally connected to the piston and spring-loaded relative to the body, the handles being located apart from each other at a capture distance with one hand, while the second handle is rigidly fixed to the housing. The device is equipped with a cassette for pins installed in the guides of the housing and the mechanism for separating the pin, Luciano drum disposed below the cassette, provided on the one hand ratchet wheel cooperating with the pawl and, on the other - of the fixing element spontaneous cranking, thus formed on the drum with longitudinal grooves on the pin diameter and length, uniformly disposed along the outer cylindrical surface. In the case made of heat-resistant plastic that can withstand sterilization and autoclaving, there is also a channel with a pusher located horizontally parallel to the channel with the piston, and a hole for the maximum length and diameter of the pin between the guides for installing cartridges, communicating with the channel for the piston, while the dog is fixed on the pusher, and the longitudinal grooves of the drum in the upper position coincide with the outlet of the cartridge, and in the lower position - with the hole of the housing between the guides I install cassettes, wherein the cassette has a cross sectional shape of a rectangle in a truncated rolling cone passing into a rectangle with a width equal to the diameter of the pin (see. Patent RU, 2441623, IPC A61S 13/34).

A disadvantage of the known device is the complexity of the design

The technical result of the claimed technical solution is to simplify the design while maintaining ease of use, the duration of maintaining the sterility of the pins and accelerate the treatment.

The technical result is achieved by the fact that in the dispenser of gutta-percha, absorbent and fiberglass pins, comprising a housing made of heat-resistant plastic that can withstand sterilization and autoclaving, equipped with a channel with a pusher, a channel for issuing a pin, a cassette for pins in the cross section having the shape of a rectangle passing into a truncated cone, turning into a rectangle with a width equal to the diameter of the pin and the mechanism of separation of the pin, including a drum located at the bottom of the cartridge and mounted rotatably in the housing, provided on one side with a wheel rigidly fixed on its axis, and longitudinal grooves are made on the drum in diameter and pin length uniformly located on the outer cylindrical surface, while the longitudinal grooves of the drum in the upper position coincide with the outlet cassettes, and in the lower position - with the pin delivery channel, the channel with the pusher is vertical, and the pusher is installed perpendicular to the axis of the drum, with the possibility of interaction I am with a drum wheel and spring-loaded relative to the housing in the channel, while a cutout is made on the basis of the dispensing channel to facilitate pin capture.

The execution of the channel with the pusher vertical, with the installation of the pusher spring-loaded relative to the housing in the channel and perpendicular to the axis of the drum, the mechanism of piece-wise delivery of the pin with the possibility of interaction with the drum wheel and making a cut on the basis of the dispensing channel, reduces the number of parts of the device, simplifying the design and simplifying the rotation of the drum by pressing on the pusher to move the pin into the dispensing channel while maintaining ease of use, the duration of maintaining the sterility of the pins and acceleration is treated i.

Figure 1 shows the device, front view;

Figure 2 shows a section along aa in figure 1 (installation of a spring-loaded pusher in a vertical channel of the housing);

Figure 3 shows a section along BB in figure 1 (shows the installation of the cassette with pins and drum in the housing schematically);

Figure 4 shows a view along arrow A in figure 1 (shows a cutout of the base of the delivery channel).

The device for issuing gutta-percha, absorbent and fiberglass pins consists of a housing 1 made of heat-resistant plastic that can withstand sterilization and autoclaving. In the housing 1 of the device there is a vertical channel 2 with a pusher 3, a channel 4 for issuing pins and a cassette 5 for pins is rigidly fixed. The cassette 5 for the pins in cross section has the shape of a rectangle turning into a truncated cone, turning into a rectangle with a width equal to the diameter of the pin. In addition, the device includes a pin separation mechanism, which provides for the separation of one pin and its feeding into the dispensing channel 4, consisting of a drum 6 with longitudinal open grooves in diameter and length of the pins, uniformly located on the outer cylindrical surface of the drum. The drum 6 is located at the bottom of the cassette 5 and is mounted with the possibility of rotation in the housing 1 on the bearings. On the one hand, on the axis of the drum 6, a gear 7 is rigidly fixed, interacting with the pusher 3. The pusher 3 is mounted in a vertical channel perpendicular to the axis of the drum 6 and is equipped with a spring 8 to return it to its original position. The longitudinal grooves of the drum 6 in its upper position coincide with the outlet of the cartridge 5, and in the lower position - with the channel 4 issuing pins. A cutout 9 is made at the base of the dispensing channel to facilitate pin capture.

The device operates as follows.

A device with pins of the required type and size of ISO for the treatment of a particular root canal of a tooth is removed from the autoclave and, with one hand, is pressed onto the pusher. The pusher 3, moving in the vertical channel 2 of the housing 1, compressing the spring 8, presses the gear 7 and rotates it, at the same time the drum 6 of the unit delivery mechanism is rotated and one pin falls into the delivery channel 4, and the other from the outlet of the cartridge 5 is fed into the next longitudinal drum channel 6. The pin falls into the dispensing channel 4, and the pusher returns to its initial position by the spring 8. The pin is located in the dispensing channel protruding in the cutout 9 of the channel base, which facilitates its capture over the edge from the larger diameter and installing a second sterile its edges in the root canal of the tooth.

The device, simplified design, convenient to use, long-term maintaining the sterility of the pins and accelerating the treatment process, will find application in dentistry.

Claims (1)

A device for dispensing gutta-percha, absorbent, fiberglass pins, comprising a body made of heat-resistant plastic that can withstand sterilization and autoclaving, equipped with a channel with a pusher, a channel for issuing a pin, a cassette for pins, in the cross section having the shape of a rectangle turning into a truncated cone, passing into a truncated cone a rectangle with a width equal to the diameter of the pin, and the mechanism of separation of the pin, including a drum located at the bottom of the cassette and fixed with the possibility of rotation in a pus, equipped on one side with a wheel rigidly fixed on its axis, moreover, longitudinal grooves are made on the drum along the diameter and length of the pin, uniformly located on the outer cylindrical surface, while the longitudinal grooves of the drum in the upper position coincide with the outlet of the cartridge, and in the lower position - with the pin delivery channel, characterized in that the channel with the pusher is made vertical, and the pusher in it is installed perpendicular to the axis of the drum, with the possibility of interaction with the drum wheel and spring-loaded relative to the housing, while at the base of the delivery channel a cut is made to facilitate the capture of the pin.

Images