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ES1296080U - A printable formulation (Machine-translation by Google Translate, not legally binding) - Google Patents

A printable formulation (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES1296080U
ES1296080U ES202231370U ES202231370U ES1296080U ES 1296080 U ES1296080 U ES 1296080U ES 202231370 U ES202231370 U ES 202231370U ES 202231370 U ES202231370 U ES 202231370U ES 1296080 U ES1296080 U ES 1296080U
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flavor
weight
agents
formulation
formulation according
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ES1296080Y (en
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Hossein Vakili
Sari Airaksinen
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Curify Oy
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/505Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/519Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/16Amides, e.g. hydroxamic acids
    • A61K31/165Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/185Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19Carboxylic acids, e.g. valproic acid
    • A61K31/195Carboxylic acids, e.g. valproic acid having an amino group
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/335Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/34Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
    • A61K31/341Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide not condensed with another ring, e.g. ranitidine, furosemide, bufetolol, muscarine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/505Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/519Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
    • A61K31/52Purines, e.g. adenine
    • A61K31/522Purines, e.g. adenine having oxo groups directly attached to the heterocyclic ring, e.g. hypoxanthine, guanine, acyclovir
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/54Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one sulfur as the ring hetero atoms, e.g. sulthiame
    • A61K31/549Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one sulfur as the ring hetero atoms, e.g. sulthiame having two or more nitrogen atoms in the same ring, e.g. hydrochlorothiazide
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/55Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
    • A61K31/554Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole having at least one nitrogen and one sulfur as ring hetero atoms, e.g. clothiapine, diltiazem
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/56Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/57Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
    • A61K31/573Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone substituted in position 21, e.g. cortisone, dexamethasone, prednisone or aldosterone
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/56Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/575Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of three or more carbon atoms, e.g. cholane, cholestane, ergosterol, sitosterol
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/205Polysaccharides, e.g. alginate, gums; Cyclodextrin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2004Excipients; Inactive ingredients
    • A61K9/2022Organic macromolecular compounds
    • A61K9/2063Proteins, e.g. gelatin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/2095Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P15/00Drugs for genital or sexual disorders; Contraceptives
    • A61P15/10Drugs for genital or sexual disorders; Contraceptives for impotence

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  • Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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  • Endocrinology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Engineering & Computer Science (AREA)
  • Gynecology & Obstetrics (AREA)
  • Medicinal Preparation (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

A formulation comprising - 2 - 30% by weight of one or more gelling agents, - 9 - 40% by weight of one or more thickening agents, - 30 - 70% by weight of one or more solvents, and - optionally , one or more preservatives, pH adjusting agents and flavoring agents characterized in that the one or more gelling agents are selected from the group consisting of gelatin, pullulan, carrageenan and agar, preferably gelatin, and the one or more thickening agents are selected from group consisting of mannitol, cellulose and silica. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPCIÓNDESCRIPTION

Una formulación imprimibleA printable formulation

CampoField

La presente divulgación se refiere a formulaciones de que son adecuadas para la impresión en 3D. La divulgación se refiere también a procedimientos para la impresión en 3D usando las formulaciones.The present disclosure relates to formulations that are suitable for 3D printing. The disclosure also refers to methods for 3D printing using the formulations.

AntecedentesBackground

La impresión tridimensional (3D) es una tecnología que ofrece la posibilidad de fabricar formas personalizadas de dosificación de medicamentos. La principal ventaja del uso de la tecnología de impresión 3D para productos farmacéuticos personalizados es la posibilidad de producir pequeños lotes con dosis, formas, tamaños y características de liberación cuidadosamente adaptadas a medida. También permite incorporar sabores a un comprimido sin necesidad de un recubrimiento de película, enmascarando por completo el sabor de los compuestos químicos. Las impresoras 3D se pueden instalar en farmacias, hospitales, clínicas y lugares remotos, lo que permite la producción bajo demanda de medicamentos, en particular de aquellos con poca estabilidad o que tienen requisitos de almacenamiento en cadena de frío. Para las empresas farmacéuticas, la impresión 3D puede reducir considerablemente los costes, los residuos y la carga medioambiental, ya que las impresoras solo depositan la cantidad exacta de materias primas necesarias.Three-dimensional (3D) printing is a technology that offers the possibility of manufacturing personalized dosage forms of medicines. The main advantage of using 3D printing technology for personalized pharmaceuticals is the ability to produce small batches with carefully tailored doses, shapes, sizes and release characteristics. It also allows flavors to be incorporated into a tablet without the need for a film coating, completely masking the taste of chemical compounds. 3D printers can be installed in pharmacies, hospitals, clinics and remote locations, enabling on-demand production of medicines, particularly those with poor stability or cold chain storage requirements. For pharmaceutical companies, 3D printing can significantly reduce costs, waste, and the environmental burden, as printers only deposit the exact amount of raw materials needed.

El principal reto del proceso de impresión 3D es el desarrollo de la tinta misma, ya que sus propiedades fisicoquímicas podrían afectar en gran medida a la imprimibilidad. La tinta debe poder imprimirse a una temperatura moderada y sólida a temperatura ambiente.The main challenge of the 3D printing process is the development of the ink itself, since its physicochemical properties could greatly affect printability. The ink should be printable at a moderate temperature and solid at room temperature.

En consecuencia, todavía se necesitan más formulaciones imprimibles para los medicamentos.Consequently, more printable formulations for drugs are still needed.

ResumenResume

Se observó que cuando una formulación contenía determinados agentes gelificantes y espesantes, la formulación era imprimible con impresoras 3D comerciales. It was observed that when a formulation contained certain gelling and thickening agents, the formulation was printable with commercial 3D printers.

En consecuencia, es un objetivo de la presente invención proporcionar una formulación imprimible que comprendaAccordingly, it is an object of the present invention to provide a printable formulation comprising

o 2 - 30 % en peso de uno o más agentes gelificantes, or 2 - 30% by weight of one or more gelling agents,

o 9 - 40 % en peso de uno o más agentes espesantes, or 9 - 40% by weight of one or more thickening agents,

o 40 - 70 % en peso de uno o más disolventes, y opcionalmente or 40 - 70% by weight of one or more solvents, and optionally

uno o más conservantes, agentes de ajuste del pH y agentes aromatizantes del peso,one or more preservatives, pH adjusting agents and weight flavoring agents,

en la que los agentes gelificantes se seleccionan de un grupo que consiste en gelatina, pullulán, carragenina y agar, y los agentes espesantes se seleccionan del grupo que consiste en manitol, celulosa y sílice.wherein the gelling agents are selected from the group consisting of gelatin, pullulan, carrageenan, and agar, and the thickening agents are selected from the group consisting of mannitol, cellulose, and silica.

En las reivindicaciones dependientes adjuntas se describen varias realizaciones a modo de ejemplo y no limitantes de la invención.Various exemplary and non-limiting embodiments of the invention are disclosed in the appended dependent claims.

Varias realizaciones ilustrativas y no limitantes de la invención y de los procedimientos de funcionamiento, junto con los objetivos y ventajas adicionales de la misma, se entienden mejor a partir de la siguiente descripción de realizaciones ilustrativas específicas cuando se leen en relación con las figuras adjuntas.Various illustrative and non-limiting embodiments of the invention and methods of operation, along with additional objects and advantages thereof, are best understood from the following description of specific illustrative embodiments when read in connection with the accompanying figures.

Los verbos "comprender" e "incluir" se usan en este documento como limitaciones abiertas que no excluyen ni exigen la existencia de otras características no enumeradas. Las características enumeradas en las reivindicaciones dependientes son mutuamente combinables a menos que se indique explícitamente lo contrario. Además, debe entenderse que el uso de "un" o "una", es decir, una forma singular, a lo largo de este documento no excluye un plural.The verbs "comprise" and "include" are used in this document as open-ended constraints that do not exclude or require the existence of other features not listed. The features listed in the dependent claims are mutually combinable unless explicitly stated otherwise. Furthermore, it should be understood that the use of "a" or "an", that is, a singular form, throughout this document does not exclude a plural.

DescripciónDescription

Los ejemplos específicos proporcionados en la descripción que se ofrece a continuación no deben interpretarse como una limitación del alcance y/o de la aplicabilidad de las reivindicaciones acompañantes. Las listas y los grupos de ejemplos proporcionados en la descripción que se ofrece a continuación no son exhaustivos, a menos que se indique explícitamente lo contrario.The specific examples provided in the description below are not to be construed as limiting the scope and/or applicability of the accompanying claims. The lists and sets of examples provided in the description below are not exhaustive, unless explicitly stated otherwise.

Según un aspecto, la presente divulgación se refiere a una formulación que comprende 2 - 30 % en peso de uno o más agentes gelificantes,According to one aspect, the present disclosure relates to a formulation comprising 2 - 30% by weight of one or more gelling agents,

9 - 40 % en peso de uno o más agentes espesantes,9 - 40% by weight of one or more thickening agents,

30 - 70 % en peso de uno o más disolventes, y opcionalmente30 - 70% by weight of one or more solvents, and optionally

uno o más conservantes, agentes de ajuste del pH y agentes aromatizantes.one or more preservatives, pH adjusting agents and flavoring agents.

Los agentes gelificantes se seleccionan de un grupo que consiste en gelatina, pullulán, carragenina y agar, y los agentes espesantes se seleccionan de un grupo que consiste en manitol, celulosa y sílice. La celulosa puede ser celulosa microcristalina (MCC).Gelling agents are selected from the group consisting of gelatin, pullulan, carrageenan, and agar, and thickening agents are selected from the group consisting of mannitol, cellulose, and silica. The cellulose may be microcrystalline cellulose (MCC).

Según una realización, el agente gelificante es la gelatina, y la formulación comprende entre el 5 % y el 30 % de peso de gelatina. Según otra realización, el agente gelificante es el agar, y la formulación comprende un 6 % en peso de agar.According to one embodiment, the gelling agent is gelatin, and the formulation comprises between 5% and 30% by weight of gelatin. According to another embodiment, the gelling agent is agar, and the formulation comprises 6% by weight of agar.

La formulación comprende uno o más agentes espesantes. Una composición espesante a modo de ejemplo de la formulación consiste en el 5-19 % en peso de celulosa y el 0,8-1,5 % en peso de sílice del peso total de la formulación. Otra composición espesante a modo de ejemplo de la formulación consiste en el 33-34 % en peso de manitol y el 0,8-1,5 % en peso de sílice del peso total de la formulación.The formulation comprises one or more thickening agents. An exemplary thickening composition of the formulation consists of 5-19% by weight of cellulose and 0.8-1.5% by weight of silica of the total weight of the formulation. Another exemplary thickening composition of the formulation consists of 33-34% by weight of mannitol and 0.8-1.5% by weight of silica of the total weight of the formulation.

La formulación comprende uno o más disolventes. Los disolventes preferentes son el agua y el glicerol. Según una realización a modo de ejemplo, la formulación comprende un 44­ 59 % en peso de agua y un 5-6 % en peso de glicerol.The formulation comprises one or more solvents. Preferred solvents are water and glycerol. According to an exemplary embodiment, the formulation comprises 44-59% by weight of water and 5-6% by weight of glycerol.

Sin embargo, si se usa el infrarrojo cercano para el control de calidad de la formulación, debe evitarse la presencia de niveles de disolventes demasiado elevados, especialmente de agua, pero también de uno o más elementos absorbentes del infrarrojo cercano, tales como espesantes, otros disolventes y cargas.However, if near-infrared is used for formulation quality control, the presence of too high levels of solvents should be avoided, especially water, but also one or more near-infrared absorbing elements, such as thickeners, other solvents and fillers.

La formulación puede comprender también uno o más conservantes, agentes de ajuste del pH y agentes aromatizantes. Los agentes de ajuste del pH a modo de ejemplo son ácido cítrico, citrato de sodio y ácido málico. Los conservantes a modo de ejemplo son ácido sórbico, sorbato de potasio y parabenos. Los agentes aromatizantes a modo de ejemplo se seleccionan entre el sabor a carne de vacuno, el sabor a tocino ahumado, el sabor a cordero, el sabor a pollo, el sabor a hígado de ave, el sabor a queso, el sabor a hígado de bacalao, el sabor a malvavisco, el sabor a melaza, el sabor a vainilla, el sabor a mantequilla de cacahuete, el sabor a fruta y el sabor a bayas. The formulation may also comprise one or more preservatives, pH adjusting agents, and flavoring agents. Exemplary pH adjusting agents are citric acid, sodium citrate and malic acid. Exemplary preservatives are sorbic acid, potassium sorbate and parabens. Exemplary flavoring agents are selected from beef flavor, smoked bacon flavor, lamb flavor, chicken flavor, poultry liver flavor, cheese flavor, chicken liver flavor, cod, marshmallow flavor, molasses flavor, vanilla flavor, peanut butter flavor, fruit flavor, and berry flavor.

Por lo general, la formulación puede comprender hasta un 1 % en peso de conservantes, hasta un 1 % en peso de agentes de ajuste del pH y hasta un 5 % en peso de agentes aromatizantes del peso total de la formulación.In general, the formulation may comprise up to 1% by weight of preservatives, up to 1% by weight of pH adjusting agents and up to 5% by weight of flavoring agents of the total weight of the formulation.

Es esencial que la formulación de impresión sea termorreversible. Su viscosidad a la temperatura de impresión debe permitir la impresión a una temperatura moderada, tal como a 40-50 °C, mientras que debe ser sólida a temperatura ambiente. La viscosidad de la formulación de la presente divulgación a 50 °C (tasa de cizallamiento de 150-800) es preferentemente de 2-4 Pas.It is essential that the impression formulation be thermoreversible. Its viscosity at printing temperature should allow printing at a moderate temperature, such as 40-50 °C, while it should be solid at room temperature. The viscosity of the formulation of the present disclosure at 50°C (150-800 shear rate) is preferably 2-4 Pas.

Es esencial que la mezcla se caliente a 37 °C o más para garantizar una impresión adecuada. La temperatura de impresión está preferentemente entre 37 °C y 55 °C. Una temperatura de impresión a modo de ejemplo es de 40 °C. Otro ejemplo de temperatura de impresión es de 45 °C.It is essential that the mix be heated to 37°C or higher to ensure proper printing. The printing temperature is preferably between 37°C and 55°C. An example printing temperature is 40°C. Another example of printing temperature is 45 °C.

La mezcla se imprime en un sustrato de impresión que se coloca preferentemente en el interior de la impresora 3D. Una vez finalizada la impresión, la mezcla se solidifica al enfriarse, por ejemplo, reduciendo la temperatura a 25 °C o menos.The mixture is printed on a printing substrate that is preferably placed inside the 3D printer. After printing is complete, the mixture solidifies upon cooling, for example by reducing the temperature to 25°C or below.

El uno o más disolventes se seleccionan preferentemente entre el agua y el glicerol. Según una realización, la formulación comprende hasta un 1 % en peso de conservantes, hasta un 1 % en peso de agentes de ajuste del pH y/o hasta un 5 % en peso de agentes aromatizantes, y/o un 1-10 % en peso de uno o más ingredientes farmacéuticos activos.The one or more solvents are preferably selected from water and glycerol. According to one embodiment, the formulation comprises up to 1% by weight of preservatives, up to 1% by weight of pH adjusting agents and/or up to 5% by weight of flavoring agents, and/or 1-10% in weight of one or more active pharmaceutical ingredients.

Parte experimentalexperimental part

Impresión 3D3d print

La impresión se realizó con una impresora 3D comercial (Foodini by Natural Machines) equipada con cartuchos de suministro de tinta, elementos de calentamiento, boquillas, software de control y una base de impresión. Los parámetros típicos de impresión fueron los siguientes:Printing was done with a commercial 3D printer (Foodini by Natural Machines) equipped with ink supply cartridges, heating elements, nozzles, control software, and a build platform. Typical printing parameters were as follows:

Tamaño de la boquilla 1,5 mmNozzle size 1.5mm

Velocidad de impresión 1500-4000 mm/minPrinting speed 1500-4000mm/min

Velocidad del flujo de ingredientes 2 m/minIngredient flow speed 2 m/min

Temperatura del flujo de ingredientes 40-50 °C Ingredient flow temperature 40-50 °C

Temperatura de precalentamiento 40-50 °CPreheat temperature 40-50 °C

Retención de ingredientes 0,2-2,5 mmIngredient retention 0.2-2.5 mm

Tiempo de precalentamiento 30-60 sWarm-up time 30-60 s

Altura de la boquilla de la primera capa 10 mmFirst layer nozzle height 10 mm

Distancia entre capas 1,4 mmDistance between layers 1.4 mm

Pruebas de impresiónprint tests

Se prepararon las siguientes formulaciones. En la tabla 1, solo se indica la cantidad de gelificantes y espesantes. El resto de las formulaciones estaban compuestas por agua y glicerol. La impresión se realizó a 45 °C.The following formulations were prepared. In table 1, only the amount of gelling agents and thickeners is indicated. The rest of the formulations were composed of water and glycerol. Printing was done at 45 °C.

Tabla 1. Formulaciones de prueba de impresión Table 1 . Print Test Formulations

Figure imgf000006_0001
Figure imgf000006_0001

Las tablas 2 y 3 enumeran los ingredientes de dos formulaciones imprimibles a modo de ejemplo y sus propiedades reológicas. Tables 2 and 3 list the ingredients of two exemplary printable formulations and their rheological properties.

Tabla 2; impresión a 45 °C; precalentamiento a 40 °C Table 2 ; printing at 45 °C; preheat to 40 °C

Figure imgf000007_0001
Figure imgf000007_0001

Tabla 3Table 3

Figure imgf000008_0001
Figure imgf000008_0001

Claims (7)

REIVINDICACIONES 1. Una formulación que comprende1. A formulation comprising o 2 - 30 % en peso de uno o más agentes gelificantes, or 2 - 30% by weight of one or more gelling agents, o 9 - 40 % en peso de uno o más agentes espesantes, or 9 - 40% by weight of one or more thickening agents, o 30 - 70 % en peso de uno o más disolventes, y or 30 - 70% by weight of one or more solvents, and o opcionalmente, uno o más conservantes, agentes de ajuste del pH y agentes aromatizantes or optionally, one or more preservatives, pH adjusting agents, and flavoring agents caracterizado por que characterized by el uno o más agentes gelificantes se seleccionan del grupo formado por gelatina, pullulán, carragenina y agar, preferentemente gelatina, y el uno o más agentes espesantes se seleccionan del grupo formado por manitol, celulosa y sílice.the one or more gelling agents are selected from the group consisting of gelatin, pullulan, carrageenan and agar, preferably gelatin, and the one or more thickening agents are selected from the group consisting of mannitol, cellulose and silica. 2. La formulación según la reivindicación 1, en la que el uno o más disolventes se seleccionan entre agua y glicerol.The formulation according to claim 1, wherein the one or more solvents are selected from water and glycerol. 3. La formulación según las reivindicaciones 1 o 2, que comprende hasta el 1 % en peso de conservantes, hasta el 1 % en peso de agentes de ajuste del pH y/o hasta el 5 % en peso de agentes aromatizantes.The formulation according to claims 1 or 2, comprising up to 1% by weight of preservatives, up to 1% by weight of pH adjusting agents and/or up to 5% by weight of flavoring agents. 4. La formulación según la reivindicación 3, en la que los conservantes se seleccionan entre ácido sórbico, sorbato de potasio y parabenos.4. The formulation according to claim 3, wherein the preservatives are selected from sorbic acid, potassium sorbate and parabens. 5. La formulación según las reivindicaciones 3 o 4, en la que los agentes de ajuste del pH se seleccionan entre ácido cítrico, citrato de sodio y ácido málico.5. The formulation according to claims 3 or 4, wherein the pH adjusting agents are selected from citric acid, sodium citrate and malic acid. 6. La formulación según cualquiera de las reivindicaciones 3 a 5, en la que los agentes aromatizantes se seleccionan del grupo que consiste en sabor a carne de vacuno, sabor a tocino ahumado, sabor a cordero, sabor a pollo, sabor a hígado de ave, sabor a queso, sabor a aceite de hígado de bacalao, sabor a malvavisco, sabor a melaza, sabor a vainilla, sabor a mantequilla de cacahuete y sabor a cereza.The formulation according to any of claims 3 to 5, wherein the flavoring agents are selected from the group consisting of beef flavor, smoked bacon flavor, lamb flavor, chicken flavor, poultry liver flavor , cheese flavor, cod liver oil flavor, marshmallow flavor, molasses flavor, vanilla flavor, peanut butter flavor and cherry flavor. 7. La formulación según una cualquiera de las reivindicaciones 1 a 6, en la que la viscosidad de la formulación a 50 °C es de 1-2 Pas. 7. The formulation according to any one of claims 1 to 6, wherein the viscosity of the formulation at 50°C is 1-2 Pas.
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WO2025247979A1 (en) 2024-05-30 2025-12-04 Mb Therapeutics Extrusion-printable pharmaceutical formulation, print cartridge containing such a formulation and method for preparing a medicament using same

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* Cited by examiner, † Cited by third party
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WO2025247979A1 (en) 2024-05-30 2025-12-04 Mb Therapeutics Extrusion-printable pharmaceutical formulation, print cartridge containing such a formulation and method for preparing a medicament using same
FR3162625A1 (en) 2024-05-30 2025-12-05 Mb Therapeutics Extrusion-printable pharmaceutical formulation, printing cartridge containing such a formulation, and process for preparing a medicinal product using it

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