RU199318U1 - Orientation sleeve for zygomatic implantation - Google Patents

Abstract

The utility model relates to medicine, namely dentistry. The sleeve for orienting the cutting tool during implantation is a cylindrical piece with a rounded bottom edge, containing in the center a guiding through hole for the cutting tool, at least one end groove on the shoulder, at least one anti-rotation projection on the outer side surface of the sleeve. Zirconium can be used as the bushing material. The technical result is to improve the usability.

Description

The technical field to which the utility model belongs

The utility model relates to medicine, namely to dentistry, and can be used to orient the cutting tool for various types of implantation, both traditional, already familiar to us, and zygomatic.

State of the art

A device for orienting a cutting tool when installing a cylindrical dental implant is known (RF patent for invention No. 2052980, class IPC A61C 8/00, publ. 27.01.1996), containing a guide element for the cutting tool and a unit for fixing it in the oral cavity, which differs in that the guide for the cutting tool is made in the form of a bushing with a central through channel and an annular groove on the outer side surface, and the fixation unit is made in the form of an elastic wire clamp with support on the gum, buccal-lingual protrusions and protrusions for installation in the bushing groove.

A device for orienting a cutting tool when installing a cylindrical dental implant is known (RF patent for invention No. 2262905, class IPC A61C 8/00, publ. 27.10.2005), containing a guide for the cutting tool in the form of a sleeve with a central through channel and a fixation unit in in the form of an elastic clamp with support on the jaw, characterized in that the sleeve with a central through channel is mounted in the bottom of the glass, which is equipped with a saddle groove for supporting the alveolar process of the jaw on the bone tissue.

The disadvantage of the known devices is the relatively low convenience in their use, due to insufficient stabilization of the drill, as well as their disposability. Known bushings are usually single-use. Also - they are all glued. That is, you first need to print the template, glue the sleeves, operate on the patient, and discard the template together with the sleeves. It is very uncomfortable.

Disclosure of a utility model

The technical result achieved with the proposed utility model is an increase in ease of use due, inter alia, to a simpler and more reliable fixation in the guide cylinders of the template for implantation. Also, the convenience of use is ensured by the rounding of the lower edge of the sleeve and the presence of face grooves on the collar of the sleeve.

The specified technical result is achieved in that the sleeve for orientation of the cutting tool during implantation is a cylindrical part with a rounded bottom edge, containing in the center a guiding through hole for the cutting tool, at least one end groove on the shoulder, at least one anti-rotation a projection on the outer side surface of the sleeve.

Zirconium can be used as the bushing material.

Brief Description of Drawings

FIG. 1-2 are schematic views of the general view of the sleeve for orienting the cutting instrument during implantation: side view and top view, respectively.

FIG. 3 shows a photo of the bushings installed in the guide cylinders of the template.

FIG. 4 shows a photo of a surgical navigation template superimposed on the patient's jaw.

FIG. 5 shows a photo of a cutter stabilized in a hub.

FIG. 6 shows a snapshot of the result of the operation with the ideal position of the implants.

In the figures, the following designations are adopted: 1 - guide through hole, 2 - end groove on the collar of the sleeve 3, 4 - anti-rotation protrusion, 5 - rounding of the bottom edge, 6 - template, 7 - guide cylinder of template 6.

Implementation of the utility model

The sleeve for orientation of the cutting tool during implantation is a cylindrical part with a rounded lower edge 5, containing in the center a guiding through hole 1 for the cutting tool, at least one end groove 2 on the collar 3, at least one anti-rotation projection 4 on the outer side surface of the sleeve.

A sterilizable material such as zirconium can be used as the sleeve material.

A guide through hole 1 in the center of the sleeve is intended for a cutting tool, through this hole 1 drilling is carried out.

The face groove 2 on the collar 3 of the sleeve is designed to identify the correspondence to the diameter of the cutting tool (cutter) or the inner diameters of the template 6. There can be several such face grooves 2 on the collar 3.

The anti-rotation projection 4 on the outer side surface of the sleeve ensures reliable fixation of the sleeve in the guide cylinders 7 of the template 6 and does not rotate together with the cutting tool (cutter) under load. To increase the reliability of fixing such anti-rotation protrusions 4 on the side surface of the sleeve there can be several.

The rounding of the bottom edge 5 provides a more convenient installation of the sleeve into the template 6.

The sleeve for orienting the cutting tool during implantation is used as follows.

In accordance with the drilling protocol, a template is simulated and printed. Install the sleeve without using glue. The sleeve is pushed in and locked securely in the template. An operation is performed. Remove the sleeve from the template. Subject it to a full sterilization cycle. The sleeve is ready for the next operation.

Implementation example

Several prototypes of the bushing were made and tested (see photo in Fig. 3-6). As a result of their use for a large number of various dental implantation operations (including the zygomatic one), it was found that:

- After more than three hundred times of use, the bushing was not damaged in any way by the cutters;

- The geometrical dimensions of the sleeve have not changed in any way;

- Each time the sleeve reliably stabilized the cutter and the direction of the osteotomy hole was obtained completely coinciding with the planned one.

The advantages of using a sleeve are:

Improved ease of use due to simpler and more secure fixation in the guide cylinders of the template.

Significant savings in the implantation procedure due to the use of a reusable sleeve.

Preservation of the integrity and geometrical dimensions of the sleeve due to the developed design and materials used.

Reliable stabilization of the cutter during drilling.

Easy to install into a template, extract from a template and use in general.

Proven absolute bioenergy of the applied material.

Any standard size is available, corresponding to different diameters and lengths of cutters.

As a result of using the declared sleeve, the following geometric dimensions of its structural elements were selected: sleeve height - 3-20 mm, sleeve collar height - 0.5-2.0 mm, through hole diameter - 1-5 mm, collar diameter - 2-7 mm.

Comparative analysis of the claimed utility model showed that the set of essential features of the claimed device is not known from the prior art and, therefore, meets the "Novelty" condition of patentability.

The above information confirms the possibility of using the claimed device for orientation of the cutting tool during implantation, and therefore meets the requirement of patentability "Industrial applicability".

Claims (2)

1. Sleeve for orientation of the cutting tool during implantation, which is a cylindrical part with a rounded bottom edge, containing in the center a guiding through hole for a cutting tool, at least one end groove on the shoulder, at least one anti-rotation protrusion on the outer side sleeve surface. 2. A bushing according to claim 1, characterized in that zirconium is used as the bushing material.

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