This disclosure relates to a capsule shredding device, and more specifically a device for shredding pharmaceutical capsules containing a powdered medicament.
In the present disclosure, the term “pill” refers to a vehicle for orally consuming a drug by swallowing said pill and the term “pill” encompasses specific vehicles for oral medication such as capsules and tablets. It is acknowledged that the technical definition of a “pill” defines an outdated dosage form, but the term is commonly used as a general term to describe a vehicle for orally administering a drug.
Some patients have difficulty swallowing pills. Many methods exist to transform medication from capsule form into a form that can be administered in a way that is received more easily by a patient than swallowing a capsule. Furthermore, capsules are manufactured in predetermined dosages and therefore one cannot change the dosage. It is well known in the art that the medication contained within a given capsule can be extracted so a desired dosage may be prepared.
One common method to make medication in a tablet easier to receive is to crush the tablet using a pill crushing device, but this only works well on tablets. Pill crushing devices apply force to the tablet to crush it into a fine powder that can be consumed in a liquid form. Alternatively, some pill crushers grind the tablet into a powder. However, pill crushers and grinders to not work well with hard-shelled capsules that contain medication within a two-piece shell.
A common method of removing medication from a hard-shelled capsule is to remove one of the capsule halves and then the medication, in the form of powder or pellets can be removed. The medication in the form of powder or pellets can then be made into a form that is easier for a patient with difficulty swallowing to receive. Additionally, the dosage can be adjusted. Some medications are toxic, so the person who opens the capsule is at risk of exposure. Therefore, it would be desirable to have a device where the medication can be extracted from a hard-shelled capsule while preventing the operator from being exposed to the medication.
The present disclosure provides a capsule shredding device for shredding capsules containing powder medicament. The shredding device includes a first housing section having a first chamber formed in a first end of the first housing section for holding a capsule. The first housing section has an open second end, and includes at least one passageway through a bottom of the first chamber to a second chamber which extends to the open second end. A vial is removably coupled to the open second end of the first housing section. A second housing section has an open end and a closed end and has a second housing chamber formed therein. The closed end has a shredding spike formed thereon which extends from the closed end on an interior of the second housing section into the second housing chamber. The first and second housing sections have cooperating coupling mechanisms for coupling the open end of the second housing to the first end of the first housing section such that the shredding spike makes contact with a capsule in the first housing chamber. The cooperating coupling mechanisms are configured to allow telescoping rotational movement of the first housing section with respect to the second housing section so the shredding spike rotates with respect to the capsule thereby shredding it causing the powder medicament to flow through the at least one passageway into the vial.
The first and second housing sections may be cylindrically shaped, and the first end of the first housing may have external threading around an outer periphery of the first end, and the cylindrically shaped second housing may include internal threading on an interior wall of the second housing section enclosing the second chamber such that the first housing can be threaded into the open second end of the second housing section such that the first and second housing sections can be rotated with respect to each other thereby causing the shredding spike to penetrate into the capsule during rotation of the first housing section with respect to the second housing section.
The shredding spike may be a pyramidal shaped shredding spike having four triangular shaped flat surfaces, at least one of the four triangular shaped flat surfaces may include spike extending therefrom. Alternatively, each of the four triangular shaped flat surfaces includes a spike extending therefrom.
The first chamber may have a shape and size to receive the capsule therein such that the capsule is held in a fixed position with respect to the first housing section and cannot rotate freely within the first chamber.
The first chamber is preferrably sufficiently deep such that the capsule is entirely contained within the chamber such that it does not protrude out of the first chamber.
The capsule shredding device may include a gasket disposed between the first and second housing sections to provide a seal when the first and second housing sections are coupled together and the capsule is being shredded to prevent any escape of the powder medicament from the first chamber.
One or both of the first and second housing sections may include textured outer surfaces for improved gripping of the first and second housing sections during rotation of one with respect to the other. These grip features may be recesses or ridges.
The vial removably coupled to the open second end of the first housing section is preferably threaded, and an interior wall of the first housing has a complimentary thread such that the vial can be threaded into the open second end of the first housing section.
The capsule shredding device may include a gasket disposed between the first housing section and the vial to provide a liquid tight seal between the first housing section and the vial when the first housing section and the vial are coupled together and the capsule is being shredded to prevent any escape of the powder medicament or liquid from the vial.
The capsule shredding device is configured to be operated by hand.
The capsule shredding device may include an extraction cap attachment port attached to the second housing section to which an extraction cap can be attached, and including at least one extraction channel between the second housing section and the extraction cap attachment port.
The capsule shredding device may include capsule holding span members in said at least one passageway of said first housing section such that said capsule holding span members prevent a capsule from exiting said first chamber through said at least one passageway.
A further understanding of the functional and advantageous aspects of the invention can be realized by reference to the following detailed description and accompanying drawings.
Embodiments will now be described, by way of example only, with reference to the drawings, in which:
The device described herein is directed, in general, to capsule shredding devices and more specifically to hard-shelled capsule shredding devices. Although an embodiment of the present disclosure is described herein, the disclosed embodiment is merely exemplary and it should be understood that the disclosure relates to many alternative forms, including different shapes and sizes. The specific structural and functional details disclosed herein are not to be interpreted as limiting but merely as a basis for the claims and as a representative basis for enabling someone skilled in the art to employ the present invention in a variety of manners.
As used herein, the terms “comprises”, “comprising”, “includes” and “including” are to be construed as being inclusive and open ended, and not exclusive. Specifically, when used in this specification including claims, the terms “comprises”, “comprising”, “includes” and “including” and variations thereof mean the specified features, steps or components are included. These terms are not to be interpreted to exclude the presence of other features, steps or components.
As used herein, the terms “about” and “approximately”, when used in conjunction with ranges of dimensions, compositions of mixtures or other physical properties or characteristics, is meant to cover slight variations that may exist in the upper and lower limits of the ranges of dimensions so as to not exclude embodiments where on average most of the dimensions are satisfied but where statistically dimensions may exist outside this region. It is not the intention to exclude embodiments such as these from the present invention.
As used herein, the coordinating conjunction “and/or” is meant to be a selection between a logical disjunction and a logical conjunction of the adjacent words, phrases, or clauses. Specifically, the phrase “X and/or Y” is meant to be interpreted as “one or both of X and Y” wherein X and Y are any word, phrase, or clause.
The capsule shredding device of the present disclosure, an embodiment of which is shown at 10 in
The cylindrical male housing section 12 is shown in more detail in
The capsule cavity 24 may be shaped in such a way that when the hard-shelled capsule 15 is placed within the capsule cavity 24 it will have restricted rotational freedom relative to the cylindrical male housing section 12. The outer surface of the male housing section 12 has external threading 28 at the top portion 18. The outer surface of the male housing section 12 also has a series of grip recesses 30 extending circumferentially around the bottom portion 20 of lower housing section 12 to provide a suitable grip to for a user threading the sections 12 and 14 together once capsule 15 has been placed into receptacle 24. The inner surface of the bottom portion 20 of the male component 12 defines a receiving space 32 for a vial/test tube and vial/test tube attachment port 34 proximate to the top portion of the male housing section 12. The vial/test tube attachment port 34 has features allowing a vial to be removably attached to the male component. Specifically, a threaded section 21 on the upper interior portion of male housing section 12 is threaded onto a complimentary threaded section on the upper outer portion of the vial or test tube 70 (
The female housing section 14 is shown in more detail in
The present shredding device 10 includes a pyramidal-shaped spike 48 projecting from the bottom of the reception chamber 44 and which each face of the spike having a small spike 50 projecting from the face or sides of spike 48. In the embodiment shown the spike is a square based pyramidal-shaped spike with each face having a small spike 50 but it will be appreciated that four spikes 50 are not required and there may be only one, two or three, however having four will give the most efficient performance in respect of shredding the capsule. Furthermore, the square spike 48 has a base section that is perpendicular to the base of the reception cavity 44, between the base of the reception cavity 44 and the pyramid section where the spike focuses at a sharp point. There is an extraction cap attachment port 52 proximate to the top portion 42 around which there is extraction cap attachment threading 54 so an extraction cap can be removably attached to the extraction cap attachment port 52. Furthermore, there is a trench 56 around the base of the extraction cap attachment port 52 so that a gasket 58 (
A gasket 16 as seen in
In use medication can be safely extracted from a hard-shelled capsule 15 in using the following procedure. An extraction cap is attached to the extraction cap attachment port 52 of the female housing section 14 with a gasket between the extraction cap, an oral syringe is attached to the extraction cap and the female component and a vial containing solvent is coupled to the vial attachment port 34 of the male housing section 12. A hard-shelled capsule 15 is positioned within the capsule cavity 24 and the gasket 16 is inserted in the bottom of the reception chamber 44 after the insertion face 22 of the male housing section 12 is inserted into the mouth of the reception cavity 44 such that the external threading 28 engages the compatible internal threading 46. A torque is then applied to one of the male 12 or female housing section 14 causing the female housing section 14 to rotate relative to the male housing section 12 in the direction which causes the external threading 28 to further engage the internal threading 46 causing the male housing section 12 to translate further into the female housing section 14.
The shredder 10 as shown in the
An alternate embodiment of the male housing 80 is shown in detail in
It will be understood that the shredding device disclosed herein may be constructed for different sized capsules.
Thus, in summary the present disclosure provides a capsule shredding device for shredding capsules containing powder medicament. In an embodiment the shredding device includes a first housing section having a first chamber formed in a first end of the first housing section for holding a capsule. The first housing section has an open second end, and includes at least one passageway through a bottom of the first chamber to a second chamber which extends to the open second end. A vial is removably coupled to the open second end of the first housing section. A second housing section has an open end and a closed end and has a second housing chamber formed therein. The closed end has a shredding spike formed thereon which extends from the closed end on an interior of the second housing section into the second housing chamber. The first and second housing sections have cooperating coupling mechanisms for coupling the open end of the second housing to the first end of the first housing section such that the shredding spike makes contact with a capsule in the first housing chamber. The cooperating coupling mechanisms are configured to allow telescoping rotational movement of the first housing section with respect to the second housing section so the shredding spike rotates with respect to the capsule thereby shredding it causing the powder medicament to flow through the at least one passageway into the vial.
In an embodiment the first and second housing sections are cylindrically shaped, and the first end of the first housing may have external threading around an outer periphery of the first end, and the cylindrically shaped second housing may include internal threading on an interior wall of the second housing section enclosing the second chamber such that the first housing can be threaded into the open second end of the second housing section such that the first and second housing sections can be rotated with respect to each other thereby causing the shredding spike to penetrate into the capsule during rotation of the first housing section with respect to the second housing section.
In an embodiment the shredding spike is a pyramidal shaped shredding spike having four triangular shaped flat surfaces, at least one of the four triangular shaped flat surfaces may include spike extending therefrom. Alternatively, each of the four triangular shaped flat surfaces includes a spike extending therefrom.
In an embodiment the first chamber has a shape and size to receive the capsule therein such that the capsule is held in a fixed position with respect to the first housing section and cannot rotate freely within the first chamber.
In an embodiment the first chamber is sufficiently deep such that the capsule is entirely contained within the chamber such that it does not protrude out of the first chamber.
In an embodiment the capsule shredding device includes a gasket disposed between the first and second housing sections to provide a seal when the first and second housing sections are coupled together and the capsule is being shredded to prevent any escape of the powder medicament from the first chamber.
In an embodiment the one or both of the first and second housing sections include textured outer surfaces for improved gripping of the first and second housing sections during rotation of one with respect to the other. These grip features may be recesses or ridges.
In an embodiment the vial removably coupled to the open second end of the first housing section is preferably threaded, and an interior wall of the first housing has a complimentary thread such that the vial can be threaded into the open second end of the first housing section.
In an embodiment the capsule shredding device includes a gasket disposed between the first housing section and the vial to provide a liquid tight seal between the first housing section and the vial when the first housing section and the vial are coupled together and the capsule is being shredded to prevent any escape of the powder medicament or liquid from the vial.
In an embodiment the capsule shredding device is configured to be operated by hand.
In an embodiment the capsule shredding device includes an extraction cap attachment port attached to the second housing section to which an extraction cap can be attached, and including at least one extraction channel between the second housing section and the extraction cap attachment port.
In an embodiment the capsule shredding device may include capsule holding span members in said at least one passageway of said first housing section such that said capsule holding span members prevent a capsule from exiting said first chamber through said at least one passageway.
The foregoing description of the preferred embodiments of the disclosure has been presented to illustrate the principles of the disclosure and not to limit the disclosure to the particular embodiment illustrated. It is intended that the scope of the disclosure be defined by all of the embodiments encompassed within the following claims and their equivalents.
Filing Document | Filing Date | Country | Kind |
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PCT/CA2018/050653 | 6/1/2018 | WO | 00 |
Number | Date | Country | |
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62514259 | Jun 2017 | US |