WO2009030788A1

WO2009030788A1 - Hypodermic needle

Info

Publication number: WO2009030788A1
Application number: PCT/ES2008/000526
Authority: WO
Inventors: Manuel Marquez Gutierrez
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-31
Filing date: 2008-07-29
Publication date: 2009-03-12
Anticipated expiration: 2010-02-28
Also published as: ES1066272U; ES1066272Y

Abstract

The invention relates to a hypodermic needle characterised in that the end of the tubular body opposite that of the head terminates in a solid conical tip which in turn terminates in a sharp penetrating point. The area close to the base of the tip includes a plurality of small holes which open onto the side surface of same for the passage of the liquid being used. The base of the solid conical tip includes a short collar which can be coupled to the corresponding end of the tubular body and attached to same by any means. The diameter of the base of the conical tip matches the outer diameter of the tubular body and a continuous connection is formed between the interior of the tubular body and the exterior of the conical tip.

Description

AGUJA HIPODERMICA HYPODERMIC NEEDLE

D E S C R I P C I Ó ND E S C R I P C I Ó N

OBJETO DE LA INVENCIÓNOBJECT OF THE INVENTION

La presente invención se refiere a una aguja hipodérmica, de las utilizadas para la aplicación de inyecciones intramusculares o intravenosas.The present invention relates to a hypodermic needle, of those used for the application of intramuscular or intravenous injections.

El objeto de la invención es conseguir una aguja "indolora", es decir que no produce dolor o daño sensitivamente apreciable en el usuario al atravesar su piel y otros tejidos que deba atravesar hasta llegar al punto de inyección.The object of the invention is to obtain a "painless" needle, that is to say that it does not produce pain or sensibly appreciable damage in the user when crossing its skin and other tissues that it must cross until it reaches the injection point.

ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION

Como es sabido las agujas hipodérmicas consisten en un cuerpo tubular, de reducido diámetro, rematado por uno de los extremos en un cabezal de acoplamiento a la correspondiente y complementaria jeringa, con su extremo libre cortado a bisel, constituyendo una punta de inserción hueca y altamente afilada, de manera que al introducirse en el cuerpo del usuario produce un corte anular, con arrastre de un diminuto cilindro de tejido, que es la causa de que se produzca un fuerte dolor, concretamente debido al rasgado del mismo.As is known, hypodermic needles consist of a tubular body, of reduced diameter, topped by one end in a coupling head to the corresponding and complementary syringe, with its free end cut to a bevel, constituting a hollow and highly inserted insertion tip. sharp, so that when introduced into the body of the user produces an annular cut, with drag of a tiny cylinder of tissue, which is the cause of strong pain, specifically due to the tearing thereof.

Con independencia de que dicho dolor hace que muchos pacientes tengan aversión a las inyecciones, especialmente individuos de corta edad, el mencionado desgarro de los tejidos trae consigo en muchas ocasiones hematomas molestos y desagradables.Regardless of the fact that such pain causes many patients to dislike injections, especially young individuals, the aforementioned tissue tearing brings many times annoying and unpleasant bruises.

DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION

La aguja hipodérmica que la invención propone resuelve de forma plenamente satisfactoria esta problemática, eliminado por completo el dolor debido al "pinchazo", por cuanto que no produce desgarro en los tejidos.The hypodermic needle proposed by the invention fully solves this problem, completely eliminating pain due to "puncture", since it does not cause tissue tearing.

Para ello y de forma mas concreta la aguja que se preconiza, a partir de un cuerpo tubular similar al de una aguja hipodérmica convencional, centra sus características en el hecho de que su extremidad libre se remata, en lugar de un bisel cortante, en una punta cónica y maciza, de vértice afilado, que por su propia configuración no produce ningún efecto de corte sobre el tejido, como anteriormente se ha dicho, sino una simple deformación elástica del mismo alrededor de un imaginario eje, de fácil recuperación tras la extracción de la aguja.For this, and more specifically, the needle that is recommended, starting from a tubular body similar to that of a conventional hypodermic needle, focuses its characteristics on the fact that its free end is finished off, instead of a cutting bevel, in a Conical and solid tip, with a sharp vertex, which by its own configuration does not produce any cutting effect on the fabric, as previously mentioned, but a simple elastic deformation of the same around an imaginary axis, easily recovered after the extraction of the needle.

Como complemento de la estructura descrita y para la necesaria e ineludible salida de líquido, la citada punta cónica incorpora en su zona basal, varios agujeros laterales, de reducidas dimensiones, en comunicación directa con el cuerpo tubular, si bien y como es evidente tales orificios podrían estar igualmente situados en vez de en el citado cuerpo tubular, en las inmediaciones de la punta cónica.As a complement to the structure described and for the necessary and unavoidable liquid outflow, the said conical tip incorporates in its basal area, several lateral holes, of reduced dimensions, in direct communication with the tubular body, although and as such holes are evident they could also be located instead of the said tubular body, in the vicinity of the conical tip.

DESCRIPCIÓN DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS

Para complementar la descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that is being made and in order to help a better understanding of the features of the invention, according to a preferred example of practical realization thereof, accompanies as an integral part of said description, a set of drawings where, for illustrative and non-limiting purposes, the following has been represented:

La figura 1.- Muestra, según una representación esquemática en alzado lateral, una aguja hipodérmica realizada de acuerdo con el objeto de la presente invención.Figure 1 shows, according to a schematic representation in side elevation, a hypodermic needle made in accordance with the object of the present invention.

La figura 2.- Muestra un detalle ampliado y en sección de la punta cónica que participa en la aguja de la figura anterior.Figure 2.- Shows an enlarged and sectioned detail of the conical tip that participates in the needle of the previous figure.

La figura 3.- Muestra, finalmente, un detalle comparativo entre la señal que producen sobre el tejido una aguja hipodérmica convencional y la aguja de la invención.Figure 3.- Finally, it shows a comparative detail between the signal that a conventional hypodermic needle and the needle of the invention produce on the tissue.

REALIZACIÓN PREFERENTE DE LA INVENCIÓNPREFERRED EMBODIMENT OF THE INVENTION

A la vista de las figuras reseñadas puede observarse como la aguja que se preconiza está constituida a partir de un cuerpo tubular (1), de longitud y diámetro apropiados, preferentemente de acero, rematado por uno de sus extremos en el clásico cabezal (2) de acoplamiento a la complementaria jeringa, como anteriormente se ha dicho.In view of the aforementioned figures, it can be seen how the needle that is recommended is constituted from a tubular body (1), of appropriate length and diameter, preferably of steel, topped by one of its ends in the classic head (2) coupling to the complementary syringe, as previously stated.

Pues bien, de acuerdo ya con la invención el citado cuerpo tubular (1) incorpora en su extremo (3) opuesto al cabezal, una punta cónica y maciza (4), convenientemente afilada hacia su vértice (5) y con un diámetro en su base o extremidad interna coincidente con el diámetro externo del cuerpo tubular (1), como se observa en la figura I^a. - A -Well, according to the invention, the said tubular body (1) incorporates at its end (3) opposite the head, a conical and solid tip (4), conveniently sharpened towards its vertex (5) and with a diameter in its base or internal limb coinciding with the outer diameter of the tubular body (1), as seen in Figure I ^a . - TO -

Para la fijación entre ambos elementos, cuerpo tubular (1) y punta cónica y maciza (4), ésta última puede incorporar un pequeño cuello anular (6) enchufable en la extremidad correspondiente del cuerpo tubular (1) y fijable a éste último por cualquier medio.For fixing between both elements, tubular body (1) and conical and solid tip (4), the latter can incorporate a small annular neck (6) pluggable into the corresponding end of the tubular body (1) and attachable to the latter by any means, medium.

La punta cónica (4) presenta, emergiendo de su base (7) y dirigidos hacia su superficie lateral (8), una pluralidad de diminutos orificios pasantes (9), como se observa especialmente en el detalle de la figura 2, de manera que a través de estos orificios el líquido o producto farmacológico de que se trate sale de la aguja hacia la zona de inyección prevista.The conical tip (4) presents, emerging from its base (7) and directed towards its lateral surface (8), a plurality of tiny through holes (9), as observed especially in the detail of Figure 2, so that through these holes the liquid or pharmacological product in question leaves the needle towards the planned injection zone.

No obstante y como también se ha dicho con anterioridad, es factible que estos micro-orificios (9) en lugar de estar situados en la punta cónica (4), lo estén en la zona del cuerpo tubular (1) próxima a dicha punta.However, as has been said before, it is feasible that these micro-holes (9) instead of being located in the conical tip (4), are located in the area of the tubular body (1) next to said tip.

De esta manera se consigue que, frente a la huella (10) definida por una aguja hipodérmica convencional y mostrada en la figura 2, con una configuración anular y de apreciable diámetro, la huella que deja la aguja que se preconiza sea un simple punto (11), tal como es mostrado también en la figura 3, es decir una huella considerablemente mas pequeña y menos lesiva, que se produce en ausencia de dolor. In this way it is achieved that, in front of the footprint (10) defined by a conventional hypodermic needle and shown in Figure 2, with an annular configuration and of appreciable diameter, the footprint left by the needle that is recommended is a simple point ( 11), as also shown in Figure 3, that is to say a considerably smaller and less damaging footprint, which occurs in the absence of pain.

Claims

R E I V I N D I C A C I Q N E S

1 Hypodermic needle, of the type that incorporates a tubular body, of appropriate length and diameter, topped by one of its ends in a coupling head to the corresponding syringe, characterized in that the end of said tubular body opposite to said head is capped in a conical and solid tip, finished off in a vivid and penetrating vertex, said tip incorporating in the area near its base a plurality of small holes that open towards the lateral surface thereof, for passage of the liquid in question.

2 Hypodermic needle according to claim Ia, wherein the conical solid tip incorporates in correspondence with their base a short attachable neck to the corresponding end of the tubular and fixable body by any means to the latter, all this so that the diameter The base of the conical tip coincides with the outer diameter of the tubular body, and continuity is established between the inside of said tubular body and the outside of the conical tip.