ES1195408U - Ring assembly and tray for surgical instrumental cluster for cleaning and/or sterilization (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Ring for securing surgical instruments for cleaning and/or sterilization, consisting of an element of flexible material, for example silicone, intended to be inserted under pressure in a perforation (6) of a tray (5), and that counts with a central through hole (3) where an instrument (4) that is pressed into it is inserted, is characterized by having a configuration comprising an inverted truncated cone main body (20) for the conical coupling between the ring (2) and said perforation (6) of the tray (5); because the main body (20) is of greater diameter in its upper base (2a) and peers in its lower part (2b), and has a thickness (G) that is equal to or less than the thickness (E) of the tray (5); and in that the lower part (2b) of said frustoconical main body (20) joins a lower projection (21), of larger diameter, defining an outstanding perimetral flange (22), which constitutes the only part of the ring (2) that exceeds the edge of the perforation (6) of the tray (5) in which it is inserted, making it by its lower part (5b). (Machine-translation by Google Translate, not legally binding)

Description

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Ring and tray set for holding surgical instruments for cleaning and / or sterilization.

OBJECT OF THE INVENTION

The invention, as stated in the present specification, refers to a ring and tray assembly for holding surgical instruments for cleaning and / or sterilization, which provides advantages and novelty features, which are described in more detail. forward, which represent an improvement in the current state of the art.

More particularly, the object of the invention is centered on a fastening device whose purpose is to ensure the fixation of surgical instruments, in particular surgical instruments for dental or orthopedic implantology, in a suitable support for cleaning and / or sterilization, which, being of the type comprising an element of flexible material and a tray with holes made for the insertion of said element, which is known in the sector as "grommet by the shape of a buttonhole or ring it has, since it has a central through hole where the surgical instrument is inserted under pressure, distinguished by being structurally designed to facilitate the cleaning of the tray, as! how to reduce the space necessary for fixing the instrument in it, and simplify the fabrication of the set.

FIELD OF APPLICATION OF THE INVENTION

The field of application of the present invention is part of the industry sector dedicated to the manufacture of devices and devices for cleaning and / or sterilization of medical instruments, particularly covering the manufacture of devices and devices for cleaning and / or sterilization. of surgical instruments for dental or orthopedic implantology.

BACKGROUND OF THE INVENTION

The procedure of preparation of surgical instruments in the field of implantology

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Dental or orthopedic consists of a previous cleaning and disinfection, and its subsequent sterilization in autoclave with humid heat, for which, the instruments must be conveniently supported in a set equipped with trays and fastening systems that in turn is clean and disinfected , and that allows an effective autoclave sterilization.

The most widespread system consists of a tray, usually made of high-temperature resistant plastic material, in which a flexible element, usually made of silicone called grommet, is embedded by mechanical interference, which has a geometry adapted to the surgical instrument it must support.

The most widespread design of grommet is composed of a cylindrical body intended to be inserted in a cylindrical perforation of similar size in the tray, and equipped with two projections or flanges, one inferior to the tray and another superior to the tray that keep it in your position

The grommet has a central perforation with different possible geometries that allows the instrument to be introduced through it.

This design has a main drawback, and that is that it requires the two above tabs: one above, and another below the tray, which means that more space is required at the top of the tray for each element to be supported. This point is important, because on the upper surface (visible part) of the tray a marking or inscription is usually carried out with indications of utilization of the surgical instruments that are rendered with limited space in the existing tray. Therefore, the smaller the space occupied by the grommet at the top of the tray, the better and clearer the marking for the use of the instruments, and / or more elements can be supported on the tray.

In addition, when the element protrudes with respect to the height of the tray, cleaning this area is not easy.

Additionally, during the operations of thorough cleaning of the trays and grommet, it is necessary to disassemble them, for which it is required to pull the tabs of these,

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deforming them to the point of damaging them in some cases, reducing the useful life of grommet.

On the other hand, the central perforation is preferably cylindrical from one end to the other of the same, following the external geometry of the grommet. This geometry is not optimal, since it is important to maximize the versatility of the grommet. Ideally, the perforation should be conical so that it can adapt to different sizes of elements to support. The dimension of the element to be supported is not always known, and, although it is known, the more diameters the same grommet design encompasses, the smaller different designs will be required, and therefore greater simplicity and lower manufacturing costs.

As an improvement to the previous design, there are different modalities or designs of grommet-tray assemblies that aim to improve some of the most widespread design deficiencies.

Thus, for example, document US2013046289A1 refers to a silicone grommet for trays of sterilizable surgical material, consisting of a lower and an upper flange and whose geometry allows the tray to be manufactured without machining and by direct molding. It is a design quite similar to the extended design and which has all the described drawbacks, although it improves the versatility in terms of the variety of objects it can support, thanks to the more flexible internal clamping geometry.

Document US2013045135A1 discloses an easily replaceable silicone grommet in the tray of medical material to be sterilized which aims to improve the cleaning tasks of the grommet and the tray itself. The grommet comprises lower and upper projections and a side handle that, although it improves the assembly and disassembly of the grommet, not only does it not optimize the space in the tray as intended by the object of the invention, but also penalizes it considerably. The central geometry of the grommet should, however, allow the tray to be manufactured without machining and by direct molding.

Document US2013064734A1 describes a silicone grommet of trays of sterilizable surgical material and which does not have a lower flange, but a projection that acts as a lower stop. It consists of an upper flange, but it turns out to be flat and very small. The cap / grommet has a straight cylindrical geometry that facilitates the assembly to the tray and also allows it not to be machined, and can be manufactured by

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direct molding

Document US2013064709A1 describes a silicone grommet for trays of sterilizable surgical material, consisting of a lower and an upper flange, the latter being flat and very small. The geometry of the grommet allows the tray to be manufactured without machining and by direct molding.

WO2017042502 describes a design that has the advantage that it saves space in the tray, since it has no flange on the top. As expressed in the patent, it also improves the ease of cleaning. You can understand that this is indeed so! as long as the grommet does not protrude above the tray, and cleaning of this part may be easier; but, as regards the cleaning of the tray itself, it is appreciated that it has internal recesses, where the walls of the complementary configuration grommet fit, which are understood to be more difficult to access for cleaning tasks. Of course, the biggest drawback of this design is that it is necessary to make a complicated machining of the hole in the tray, requiring a "t" shaped tool and the programming of a circular path with it to perform it, instead of a drill simple as in the previous designs described.In fact, in cases where the tray is desired to be manufactured only by injection, this hole could not leave directly from a mold, unless a very complicated male was made for each hole of the mold with the consequent associated extra cost.

Therefore, there is no known solution of the current state of the art that simultaneously solves all the points of interest that aims to solve the structural design of the device object of the present invention:

- Improve the cleaning of the tray, having no protrusion or flange at the top view of the tray.

- Save space on the visible surface of the tray, for the same size of element to be supported.

- Optimize the retention geometry of the elements to cover a greater range of sizes of elements for the same size of grommet.

- Allow a simple fabrication of the tray by direct perforation or

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by injection molding.

- Allow simple cleaning of the tray hole.

- Allow simple assembly and disassembly of the grommet.

On the other hand, and as a reference to the current state of the art, it should be noted that while other devices of the type referred to herein are known, at least on the part of the applicant the existence of no other device for securing Surgical instruments for cleaning and / or sterilization or any other invention of similar application that presents technical, structural and constitutive characteristics equal to or similar to those presented by the device described herein, as claimed.

EXPLANATION OF THE INVENTION

Thus, the ring and tray assembly for holding surgical instruments for cleaning and / or sterilization that the invention proposes is configured as a remarkable novelty within its field of application, since in accordance with its implementation the objectives previously achieved are satisfactorily achieved. indicated as suitable, being the characterizing details that make it possible and distinguish it, conveniently included in the final claims that accompany this description.

More specifically, the device for fastening or tray-ring assembly proposed by the invention solves the problems described above, saving space on the upper surface of the tray, and improving flexibility by extending the range of sizes of instruments that it can support for the same size. ring and improving cleaning, since the said ring has no protrusion on the top. In addition, it facilitates the production and cleaning of the tray, allowing simple mechanization or its production by direct molding without generating recesses in the tray since the hole does not have internal recesses, but is of flat walls. Additionally, the conical geometry of said tray hole simplifies the assembly and disassembly of the ring, helping the compression of the ring for its introduction and expulsion, reducing the risk of damaging it and prolonging its useful life.

For all this, and more specifically, the device of the invention constitutes it, of

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conventional way already known, an assembly comprising an element of flexible material, usually silicone that we will call a ring, with a central through hole where the instrument is held under pressure, and a tray with one or more perforations performed in accordance with the tight insertion of said element or ring, where the essential characteristic that distinguishes said assembly is a conical coupling between both elements, which implies a conical perforation of the tray, with the largest opening in the upper part, and a ring constituted by a body It also has only one flange at the bottom and a central through hole that adapts to the outer taper of the ring.

The ring is configured, therefore, from a truncated cone geometry body adapted to support the conical perforation of the tray preventing it from passing through it and, at the same time, making the “grip” effect by pressing a instrument against the ring.

The ring also has a lower projection in the form of a hemispherical, conical, cylindrical or otherwise shaped cap, which protrudes from the bottom of the tray and prevents it from decoupling once inserted into the conical perforation thereof.

It is important to clarify that this projection is much less critical in the lower part of the tray than in the upper one, since in the lower part it is not necessary to carry out marking on the tray, and the upper part is the most critical in terms of what Cleaning refers, since it is the most exposed area and in contact with the instruments.

The geometry of this lower projection, together with the conical geometry of the perforation of the tray, facilitates the assembly and disassembly operations of the assembly, allowing a more controlled assembly always in the direction in favor of the cone, which allows a simpler compression and progressive of the ring flange during the assembly operation, and a simpler compression of the ring body for its extraction, which in turn helps to preserve the life of the ring.

On the other hand, the ring has a central through hole that is of variable plantar geometry, such as circular penta-lobular, triangular, hexagonal, square, etc., but which in any case is characterized by having a conical longitudinal geometry according to

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conicity of the main body of the ring, with a smaller inscribed diameter in its lower part, which defines the smaller diameter of the instrument that can support the assembly, and therefore is smaller in diameter than the lower part of the tray perforation, and a inscribed diameter greater in its upper part, related to the greater diameter of the instrument that can support the set, which is also smaller in diameter than the lower part of the perforation of the tray but larger than the smaller inscribed diameter.

However, a certain degree of compression of the ring is admitted, so that a diameter instrument somewhat larger than said diameter inscribed larger in the upper part of the central through hole of the ring can also be effectively supported.

Additionally, the ring may have a rounding or chamfer at the upper edge of the central through hole with a larger diameter to facilitate the insertion of instruments larger than the aforementioned larger diameter of the upper part of said hole.

To improve the level of grip of the instruments and to expand the range of sizes of instruments that can be supported, it is important to maximize the overall height dimension of the ring that will generally be greater than the thickness of the tray in the area where it is located the conical perforation where it is inserted, although it is also possible that this dimension is less than said thickness in some configuration of the ring.

The dimension that defines the height that the ring protruding above the tray is minimal, preferably zero or even negative, so that the upper part of the ring is located below the level of the tray. This dimension is not larger so as not to hinder routine cleaning of the upper surface of the tray.

And, the dimension that defines the height that the ring protrudes below the tray is variable, and can also be above the level of the tray at the bottom. This dimension can be increased to improve the retention capacity of the ring, as well as to extend the range of diameters of the instruments that it can support without compromising the routine cleaning of the upper part of the tray.

The assembly is assembled by pressure and the force required must be greater than the force of

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clamping required for the instrument to support. However, the force required for assembly and disassembly allows the assembly to be separated into its elements for deep cleaning, therefore, the diameter of the upper base of the ring may be less than the diameter of the upper part of the perforation of the tray and in any case, the conical geometry said perforation of the tray favors the insertion of the ring.

It is precisely in these deep cleaning tasks that a simple tray and no recess drilling is required as described in the present invention, and that is an improvement with respect to the solution used in other systems.

Note also that the fabrication of the tray of the present invention can be manufactured by a very simple machining (simple drill) or by injection molding without inserts.

In short, the essential characteristics and advantages provided by the structural design of the device of the present invention are essentially:

- which provides a conical union between the ring and the tray that allows to dispense with flange or projection on the top of the tray;

- that the ring includes a flange at the bottom of the tray, which acts in conjunction with the conical surface to fix the ring to the tray while maintaining a conical geometry in the tray without counter-outputs;

- that the ring incorporates a central through hole between the upper and lower part of conical geometry, variable plantar, penta-lobular, triangular, hexagonal, square, etc., which allows the surgical instruments to be held frictionally during cleaning and / or sterilization;

- that the upper part of the ring is essentially flush with the upper part of the tray, being able to protrude or be hidden;

- that the lower part of the ring can protrude several millimeters below the tray to improve the grip of the instruments.

Logically, the tray can have several conical perforations of the same or different dimension for the insertion of several grommets of the same or different dimension, it being desirable that the distance between said perforations does not exceed the dimension of the diameter of

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the top of them. In addition, the set can be part of a surgical set consisting of more elements that can house more surgical instruments.

In view of the above, it is found that the described ring and tray assembly for holding surgical instruments for cleaning and / or sterilization represents an innovative structure with structural and constitutive characteristics unknown until now for the purpose to which it is intended, reasons that together to its practical utility, they provide it with sufficient grounds to obtain the privilege of exclusivity that is requested.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order to help a better understanding of the features of the invention, this descriptive report is attached, as an integral part thereof, of a set of drawings, in which with character Illustrative and not limiting, the following has been represented:

Figure number 1.- Shows a perspective view of an example of the device object of the invention, that is, of the tray-ring assembly, including the surgical instruments to which it is intended, appreciating its general configuration and the mode of use.

Figure number 2.- Shows a sectional view of the conical perforation of the device tray according to the invention, its configuration and arrangement being appreciated therein.

Figure number 3.- Shows a side elevation view of an example of the device ring of the invention, its general external configuration being appreciated.

Figure number 4.- Shows a sectional view of the ring shown in figure 3, showing its internal configuration, especially that of the central through hole for securing the instruments.

Figure number 5.- Shows a bottom plan view of the ring shown in figures 3 and 4.

Figure number 6.- Shows a top plan view of the ring shown in figures 3

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to 5.

And figure number 7.- Shows a sectional view of the assembly of the tray-ring device once assembled, the arrangement of said ring being seen in the perforation of the tray.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the aforementioned figures, and in accordance with the numbering adopted, an example of non-limiting realization of the device for holding surgical instruments for cleaning and / or sterilization is recommended, which comprises the parts and elements which are indicated and described in detail below.

Thus, as observed in said figures, the device (1) in question consists, in a known manner, of an assembly comprising at least one ring (2), consisting of an element of flexible material, usually silicone, with a through central hole (3) where an instrument (4) will be inserted that is held in the pressurized, and a tray (5) with one or more perforations (6) practiced according to the tight insertion of the ring (2), allowing that, once the ring (2) is placed in the hole (6) of the tray (5), said instrument (4) is held inserted in the hole (3) ring (2) to bring the assembly to clean and / or sterilization.

And, from said configuration, the device (1) is distinguished by presenting a conical coupling between both elements, that is, between said ring (2) and said perforation (6) of the tray (5), where the ring ( 2) has a configuration comprising a main body (20) with an inverted trunk configuration, that is to say with a larger diameter at its upper base (2a) and smaller at its lower part (2b), whose thickness (G) is equal to or less than the thickness (E) of the tray (5), joining in said lower part (2b) to a lower projection (21), of greater diameter than said lower part (2b) of the main body (20) conical trunk, which defines a flange (22) Outstanding perimeter that constitutes the only part of the grommet (2) that exceeds the edge of the perforation (6) of the tray (5) in which it is inserted, making it through its lower part (5b); and where the perforation (6) of the tray (5) is also of conical configuration with a larger diameter in its upper part (5a) and smaller in its lower part (5b) according to the dimensions and taper of the

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main body (20) conical ring of the ring (2) to be adjusted to it.

In addition, preferably, the central through hole (3) of the ring (2), which is of variable plantar geometry, such as circular penta-lobular, triangular, hexagonal, square, etc., has a conical longitudinal configuration that adapts to the external conicity of the main body (20) of the ring (2), such that the diameter of its upper mouth (3a) is larger than the diameter of its lower mouth (3b) to allow the insertion of instruments (4) of different diameters

Additionally, said upper opening (3a) of this central through hole (3) has a rounding or chamfer (30) to facilitate the insertion of larger diameter instruments.

Preferably, the lower projection (21) of the ring (2), which has a variable shape, of a hemispherical, conical, cylindrical cap or other shape, protrudes up to several millimeters from the bottom (5b) of the tray (5) once inserted in the conical perforation (6) of the same, without discarding options in that given flush or even hidden above said lower part (5b), while the upper base (2a) of the ring (2), which is mainly flat, preferably, it is flush with the upper part (5a) of the tray (5) or even below it, to facilitate cleaning, although it is not ruled out that it can protrude a few tenths of a millimeter.

Thus, preferably, the total height (H) of the ring (2) is greater than the thickness (E) of the tray (5) in the area where the conical perforation (6) is located where said ring (2) is inserted , protruding only from the bottom (5b) of the tray (5), although it is not ruled out that it is less than said thickness in some configuration of the ring.

Next, a particular example of the device (1) according to the present invention is described.

The external dimensions of the tray (5) in general are limited by the dimensions of the set in which it is intended to be contained, which in turn is limited by the dimensions of the autoclave sterilization chamber, which, in the case of the target dental sector, it can be in the worst case of about 240mm in diameter by 440mm deep.

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It is evidenced that the available space is limited, and hence the need to reduce the space occupied by the ring (2) on the surface of the tray. Take as an example and with the safety margins a tray (5) square of dimensions 140mm x 140mm and with a thickness (E) of 3mm manufactured by molding in PPSU (Polyphenisulfone), and equipped with support brackets, well lateral to very central eyelash mode as legs as can be seen in figure 1.

In this tray, it would be possible to place 9 rows and 9 columns of traditional grommets that could have a diameter in the visible or upper part (5a) of the tray (5) of about 11mm. This implies leaving a space between them of about 4mm and occupying around 40% of the useful surface of the tray. However, with the rings (2) of the invention the same 9 rows and 9 columns of 7mm spaced grommets could be placed and occupying about 20% of the surface of the tray, since, the diameter of the ring in the part upper (5a) of the tray (5) could be 8mm or less, for the same internal hole of the ring, saving almost 50% of useful space in the tray.

According to this example, the conical perforation (6) of the tray (5) will have a diameter in its upper mouth (3a) around 8mm and in its lower mouth (3b) around 6.4mm corresponding to a conicity of 15th.

The appropriate silicone ring for this tray will have a thickness (G) in its main body (20) 3mm conical trunk, a diameter in its lower part (2b) of 6.4mm and a diameter in its upper base of 8mm corresponding to it taper of the perforation (6) of the tray (5).

The total height (H) of the ring (2) could be 3.5mm provided that by its upper base (2a) it was flush to the top (5a) of the tray (5) and the lower projection (21) protruded by the lower part (5b) of said tray (5) about 0.5mm

The lower projection (21) will have a diameter in the flange (22) around 7.5mm and a hemispherical cap shape to facilitate assembly.

As for the central through hole (3) of the ring, it can have many configurations

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possible, from a simple quadrangular prism to a conical penta-lobular geometry that is the choice of the example represented in the figures.

In the event that the size of the instruments to be placed in the ring is small, a diameter of the lower opening (3b) for example of 0.7mm and a diameter of the upper opening (3a) of about 1.8 will be chosen mm, which allows it to support instruments of characteristic size between 0.7mm and 2mm approximately.

If it is required to support larger instruments, a larger lower opening diameter (3b), such as 2mm and an upper opening diameter (3a) should be chosen, according to which it could be about 4mm, which would allow it to support characteristic size instruments between 2mm and 5mm approximately. A rounding or chamfer (30) could be included in the upper opening (3a) of about 6mm to facilitate the entry of the instruments to be placed.

For larger instruments, the internal perforation will be increased analogously.

Describe sufficiently the nature of the present invention, as! As the way to put it into practice, it is not considered necessary to make its explanation more extensive so that any expert in the field understands its scope and the advantages that derive from it, stating that, within its essentiality, it can be taken to the practice in other forms of realization that differ in detail from that indicated by way of example, and to which it will also achieve the protection that is sought as long as it does not alter, change or modify its fundamental principle.

Claims (9)

5 10 fifteen twenty 25 30 1. RING FOR CLOSURE OF SURGICAL INSTRUMENTAL FOR CLEANING AND / OR STERILIZATION which, consisting of an element of flexible material, for example silicone, intended to be inserted under pressure in a perforation (6) of a tray (5), and which counts with a through central hole (3) where an instrument (4) that is attached to the pressure is inserted, is characterized by having a configuration comprising a main body (20) inverted trunk for conical coupling between the ring (2) and said perforation (6) of the tray (5); because the main body (20) is of a larger diameter at its upper base (2a) and smaller at its lower part (2b), and has a thickness (G) that is equal to or less than the thickness (E) of the tray ( 5); and because the lower part (2b) of said main conical body (20) is connected to a lower projection (21), of greater diameter, which defines an outstanding perimeter flange (22), which constitutes the only part of the ring (2) that exceeds the edge of the perforation (6) of the tray (5) in which it is inserted, making it at the bottom (5b). 2. SURGICAL INSTRUMENTAL HOLDING RING FOR CLEANING AND / OR STERILIZATION according to claim 1, characterized in that the through central hole (3) of the ring (2) is of variable plantar geometry, such as circular penta-lobular, triangular, hexagonal, square, etc. and has a conical longitudinal configuration that adapts to the external conicity of the main body (20) of the ring (2), such that the diameter of its upper mouth (3a) is larger than the diameter of its lower mouth (3b) allowing the insertion of instruments (4) of different diameters. 3. RING FOR CLOSURE OF SURGICAL INSTRUMENTAL FOR CLEANING AND / OR STERILIZATION according to claim 2, characterized in that the upper opening (3a) of the central through hole (3) has a rounding or chamfer (30) to facilitate the insertion of instruments larger diameter. 4. SURGICAL INSTRUMENTAL HOLDING RING FOR CLEANING AND / OR STERILIZATION according to any one of claims 1 to 3, characterized in that the lower projection (21) of the ring (2), which has a variable shape, semi-spherical, conical, cylindrical cap or another, it protrudes up to several millimeters from the bottom (5b) of the tray (5) once inserted into the conical hole (6) of the same. 5 10 fifteen twenty 25 5. SURGICAL INSTRUMENTAL HOLDING RING FOR CLEANING AND / OR STERILIZATION according to any of claims 1 to 3, characterized in that the lower projection (21) of the ring (2) is flush or even hidden above the lower part ( 5b) of the tray. 6. SURGICAL INSTRUMENTAL HOLDING RING FOR CLEANING AND / OR STERILIZATION according to any of claims 1 to 5, characterized in that the upper base (2a) of the ring (2), which is flat, is flush with the upper part ( 5a) or below the tray (5). 7. SURGICAL INSTRUMENTAL HOLDING RING FOR CLEANING AND / OR STERILIZATION according to any of claims 1 to 5, characterized in that the upper base (2a) of the ring (2), which is flat, protrudes a few tenths of a millimeter of the part top (5a) of the tray (5). 8. SURGICAL INSTRUMENTAL HOLDING RING FOR CLEANING AND / OR STERILIZATION according to any of claims 1 to 4, characterized in that the total height (H) of the ring (2) is greater than the thickness (E) of the tray (5) ) in the area where the conical perforation (6) is located where said ring (2) is inserted, protruding only from the bottom (5b) of the tray (5). 8. TRAY FOR HOLDING SURGICAL INSTRUMENTAL FOR CLEANING AND / OR STERILIZATION according to any of claims 1 to 8, characterized in that it comprises one or more perforations (6) for the pressure insertion of a ring (2), wherein said perforation (6) is of conical configuration with a larger diameter in its upper part (5a) and smaller in its lower part (5b) according to the dimensions and conicity of the main body (20) conical ring of the ring (2) to be adjusted to the same.