MXNL06000042A

MXNL06000042A - Digitised spinal system.

Info

Publication number: MXNL06000042A
Authority: MX
Inventors: Aldo Arvizo Arvizo
Original assignee: Aldo Arvizo Arvizo
Priority date: 2006-06-26
Filing date: 2006-06-26
Publication date: 2008-10-17

Abstract

This invention referred to herein, is a biocompatible metal piece intended for stabilizing vertebral bodies in cervical, thoracic and lumbar regions. This piece remarkably diminishes the profile, weigh and volume of an implant; the compatibility of the curving digitalized surfaces allows to immobilize vertebral bodies without internal efforts, achieving an important diminishing of time during the implant installation.

Description

DIGITIZED SPINAL SYSTEM. DESCRIPTION OBJECT OF THE INVENTION The present invention relates to a new piece of biocompatible metal with digitized curved surfaces that, specifically, allows to stabilize the vertebral bodies in the cervical, thoracic and lumbar regions.

BACKGROUND Currently different methods are used to stabilize the vertebral bodies, these are a set of universal cylindrical bars that are joined with different mechanical restraint systems allowing immobilize vertebral bodies in the column with the following drawbacks: Very large implants, consisting of large numbers of pieces assembled with highly specialized manual tools and that produce internal efforts when cold preforming the bars, notably increasing the weight and volume of the assemblies, physically precluding a perfect alignment, as well as requiring a lot of time to assemble multiple components, during the surgical operations.

In order to eliminate these drawbacks, these new digitized biocompatible metal parts were developed, which is intended to be protected by means of the present application, since these biocompatible metal parts with digitized curved surfaces notably reduce the profile, weight and volume of the implant; the compatibility of digitized curved surfaces makes the use of specialized tools unnecessary, since they allow an alignment without internal efforts, thus minimizing the time of the surgical operation.

BRIEF DESCRIPTION OF THE FIGURES The characteristic details of these new elements are clearly shown in the following description, in the accompanying drawings, as well as an illustration of these elements and following the same reference signs to indicate the parts and figures shown.

Figure 1 shows a conventional view of the upper part of this piece of digitized biocompatible metal, showing three circular holes (1) known as receiving holes for oriented fixing screws, a biocompatible metal bar (2) is also shown.

Figure 2 shows a biocompatible metal bar (2), with perforations for its assembly (1); with digitalized curves similar to the curves of the transverse processes on the fixation surface (3).

Figure 3 is the view of. longitudinal section, showing perforations for its assembly (1) and the digitized biocompatible metal part (2), as well as the cutting of the digitized curves (3).

Figure 4 shows a conventional perspective view of the biocompatible metal bar, clearly showing the oriented fixing holes (1), the body of the biocompatible metal bar (2) and the digitized surfaces (3).

DETAILED DESCRIPTION OF THE INVENTION To complement the description of this invention and in order to help a better understanding of its characteristics, the present description is accompanied, as an integral part of the same, the drawings in which illustrative and non-illustrative limiting, the following has been presented: PREFERRED EMBODIMENT OF THE INVENTION These figures illustrate the important areas of the digitized biocompatible metal parts. Figure 1 shows a bar (2), which is a solid piece of biocompatible metal, of rectangular shape with its rounded ends, and its flat side surfaces, shows three orifices of receiving body of oriented fixing screws (1), the which, go through end to end this bar of digitalized biocompatible metal (2).

Figure 2 shows the body of the biocompatible metal bar (2), is limited in its parallel ends and in rectangular form, on its upper part, its rounded edges, as well as digitized curved surfaces (3) at its bottom, which have the same characteristic curvatures of the transverse processes of the vertebral bodies.

Figure 3 illustrates a cross section of this solid bar of digitized metal, showing the perforations for its assembly (1), which are cylindrical perforations of two diameters that cross the biocompatible metal bar (2); illustrates the cut of the curves of the transverse processes of the vertebrae (3).

Figure 4 is a conventional perspective view of the digitizing bar, clearly showing the fixing holes (1), the body of the biocompatible metal bar (2) showing the digitized surfaces (3) which are in contact with the transverse processes of the vertebral bodies, fixed with oriented screws.

Claims

CLAIMS Having described my invention enough, I consider it as a novelty and therefore claim as my exclusive property, what is contained in the following clauses:

1. This piece with digitized surfaces is characterized by being a single solid rectangular bar of metal, rounded at its ends, in which contact surfaces equal to the curved surfaces of the transverse processes of the vertebral bodies have been generated.

2. The generation of identical cavities between the digitized bars and the transverse processes of the vertebral bodies causes the stresses to be distributed uniformly in three-dimensional form avoiding movements in all directions; providing a perfect fixing assembly between the parts.

3. it is also characterized by containing perforations to fix the pieces with digitized surfaces to the vertebral bodies, said perforations are located and oriented according to the actual position of the vertebral peduncles, which are fully observed in the solid third-dimensional model.

4. This new piece is characterized with digitized surfaces by transmitting the efforts over the entire contact area in three dimensions.

5. Also characterized by significantly reducing the profile, weight and volume of the implant for a given patient.

6. The compatibility of the digitized surfaces allows a single position on the vertebral bodies to be immobilized.

7. This piece is characterized by the generation of the digitized surfaces in biocompatible materials that corresponds specifically to the surfaces of the transverse processes; obtained as a set in a functional position of a selected patient; the digitized surfaces of the individual vertebral bodies is generated in a solid bar of biocompatible material in such a way that when the assembly is fixed, they become a single unit.