ES2291110A1 - Osteoporosis expansors array of bone for implantology, includes threaded body of decreasing section in one of extremity, where tip width is finished as washer after expansion - Google Patents

Abstract

The osteoporosis expansors array includes has a threaded body of decreasing section in one of extremity, where the tip width is finished as a washer after expansion. A polygonal head to drive with a ratchet or other suitable tool is provided such that the hole in the bone is achieved by thread. The osteoporosis has equal length and variable diameter running out a sharp tip while remaining is grouped in pairs.

Description

Bone expander osteotome set for Implantology work.

Object of the invention

The present invention relates to a game or group of osteotomes intended for progressive bone expansion, both at maxillary and mandibular level, in works of implantology

The object of the invention is to achieve for patient a nontraumatic bone expansion, through the sequential use of said osteotome set.

Background of the invention

As is known, in implantology work it is it is necessary to perform bone expansions, specifically at the level of maxilla, where the maxillary sinuses can be very pneumatized and we need to do an atraumatic sinus lift, to the subsequent placement of implants.

More concretely to carry out this operation are used osteotomes that currently act by impact, so that with the collaboration of a hammer you introduced into the bone, by way of nails, causing an expansion parallel to its own penetration and sinus floor elevation maxilla without breaking the membrane.

Obviously the use of these osteotomes it is a remarkable surgical trauma and especially a trauma psychological for patients, derived mainly from hammer impacts on the osteotome.

Description of the invention

The osteotome set that the invention proposes solves the problem fully satisfactorily previously exposed, drastically reducing the patient traumatology, both from the point of view surgical, as from the psychological point of view, achieving a maxillary sinus lift in one way atraumatic, without the need for a wall exposure lateral of said breast.

To do this and more specifically the game of Osteotomes that are recommended act by thread, instead of by impact, specifically by means of a tapered thread, so that finished off in a square head that allows the actuation of the same with the collaboration of a ratchet or similar, diverse Osteotomes with different sections in their threaded sector, progressively growing, they are being introduced into the bone, previous action with a strawberry initiator, getting a progressive widening of the practiced hole, until achieving, with the largest of them, the thickness and length required by the implant to be placed.

Complementarily and from an osteotome topped off, the following alternately present a blunt point and a concave tip, the first to open the way and the another for possible introduction of graft material.

The first osteotome would have one more thread pitch  pronounced that the rest, and said thread pitch would be wide and with flat tip

All osteotomes bear marks of depth to adjust this to the length of the implant that is will be placed, while the implant diameter determines the maximum thickness of the osteotomes to use.

Description of the drawings

To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as part member of that description, a set of drawings where with illustrative and non-limiting nature, what has been represented next:

Figure 1: Sample, according to a representation schematic in side elevation, a set of expander osteotomes of bone for implantology work performed in accordance with the object of the present invention.

Figure 2: shows an enlarged detail and in perspective of the end of the osteotomes of the previous figure corresponding to its actuation during insertion that is.

Figures 3 and 4: show, respectively, expanded and perspective details of the opposite limb of the osteotomes of figure 1, in the two basic cases in which these ends are blunt or concave curved.

Preferred Embodiment of the Invention

In view of the figures outlined, especially of figure 1, it can be seen how the invention materializes in a game or group of osteotomes that present as a denominator common the presence of a body (1), stylized and threaded, of progressively growing section from one end to the other, and that at a wider end and after a kind of washer (2) ends in a small square head (3) for operation with an appropriate tool, such as with a ratchet, to which the expansion as a washer (2) acts as a stop, top, maximum as a noun, top as an adverb.

These osteotomes (1) have identical length, for example 13 millimeters, and its diameter is progressively growing, so that the first one it has a maximum diameter of 2.8 millimeters, the two seconds a diameter of 3.2 millimeters, the next couple a diameter of 3.8 millimeters, the following a diameter of 4.2 millimeters, etc. as well until reaching the maximum expected value, which will be the corresponding to the maximum diameter required by the implant to be placed later.

The first osteotome (1), the one with the smallest diameter, it has its free limb (4), the opposite of the head (3), sharp, because this is the osteotome that will work first place, and that must open the first hole in the bone, the smaller one diameter, although the previous use of a milling cutter is planned Initiator that facilitates the subsequent implantation, with the ratchet or element in question, of this first osteotome. I would have a step Thread more pronounced than the rest, wider and with the tip flat.

The next pair of osteotomes, in diameter immediately superior, the first one presents a limb  free (5) rome and the second a free end (6) concave, configuration of said end that is repeated in the following couples of progressively increasing osteotomes in thickness.

After the use of the minor osteotome (1) size, the finish on the tip (4), the different ones will be used and successive tip osteotomes (5) rome, to widen progressively the hole obtained, according to what require the subsequent implant, and once the diameter is reached necessary, which can be very variable, is introduced into the hole after the limb osteotome (5) roma the complement of the same pair with its free end (6) concave, to introduce graft material housed in said concave end (6).

All the osteotomes of the game have marks depth (7) that allow the control of the length of the hole depending on the length of the implant to be place.

In the case of crest expansion, continue with the same sequence but only using blunt osteotomes to avoid undesirable cortical fractures.

Claims (4)

1. Set of bone expander osteotomes for implantology work, characterized in that each and every one of the osteotomes participating in said game has an elongated and threaded body, which at one end ends, after an expansion as a washer (2), in a small square head (3) for actuation of the osteotome with a ratchet or with any other similar tool, said osteotomes of equal length and progressively increasing diameter between extreme minimum and maximum measures required by implants to be used with later. 2. Set of bone expander osteotomes for implantology work, according to claim 1, characterized in that the smaller osteotome has its free limb (4), the opposite of the head (3), pointed. 3. Set of bone expander osteotomes for implantology work, according to previous claims, characterized in that the osteotomes of size larger than the minimum size form pairs, the osteotomes of each pair being dimensionally equal, but one of them with its blunt free limb and the other with its concave free limb. 4. Set of bone expander osteotomes for implantology work, according to previous claims, characterized in that all osteotomes that participate in it have marks in their threaded sector (1) that allow visually control the degree of penetration thereof into the bone.