IE812619L

IE812619L - Tablet dispenser

Info

Publication number: IE812619L
Application number: IE261981A
Authority: IE
Original assignee: Merck & Co Inc
Priority date: 1980-11-10
Filing date: 1981-11-09
Publication date: 1982-05-10
Also published as: DK154262B; GR76929B; EP0051994A1; DK154262C; ES269713Y; DE3168692D1; ES269713U; IE52643B1; EP0051994B1; DK493281A; PT73931A; PT73931B

Description

52613 2 The invention relates to a medicament dispensing container.

Packages for solid medicaments in the past have appeared in a number of forms and in various degrees of 5 complexity. The common container used by pharmacies for the dispensing of pills and capsules is an open-ended glass or plastic cylinder with a cap closure to retain the medicament when not being dispensed. The cap closure is sometimes a screw cap or alternatively may be 10 a plastic snap-off cap or any of a variety of child resistant closures that require careful alignment of cap position in order to remove it from the container. Such caps rather than simplifying the opening and closing of containers usually make the process more difficult. 15 Certain of the prior art devices are especially designed to act as containers for the delivery of one unit of medication; e.g. a single capsule or pill at a time. Such devices are disclosed for example in 3 5 2 6 4 3 U.S. Patent Specification No. 4,154,365 which shows a dispensing container for single capsules which is essentially a pair of axial, telescoped members in which the inner member carries a stack of pills or other articles to be dispensed and 5 the inner member may be reciprocated within the outer member between a normal, non-dispensing position and the dispensing position. The tubular members have openings which register when the inner member is depressed relative to the, outer member, to allow the lowermost article of the stack to pass 10 through the registered dispensing openings by gravity. A drawback of this type of dispenser is that the openings must be carefully registered and held in place until the article drops out. This requires careful manual manipulation and there is difficulty, for a patient having limited or painful 15 finger mobility, in using such devices.

The present invention provides a medicament storing and dispensing device for storing small objects and dispensing them one at a time comprising two receptacles one telescoped within the other and a resilient means acting as a gate between 20 a storing compartment and a delivery compartment, an outer one of the receptacles containing the objects to be dispensed and having an inner structure which divides the outer receptacle into an upper compartment and a lower compartment and a connecting delivery tube which has a bevelled end ramp, the other, 25 inner receptacle being slidably enclosed by the lower compartment of the outer receptacle and having an inner structure for receiving and dispensing capsules by reciprocal motion within the outer receptacle, and the resilient means exerting a force tending to separate the outer and inner receptacles and entry 30 of the small objects into the inner receptacle being controlled by reciprocal motion of the inner receptacle within the outer receptacle.

Such a device can readily be operated by an individual with limited finger mobility the lower receptacle being 35 simply pressed into the upper receptacle to allow delivery of a single pill or capsule into the palm of the user's hand. 52643 4 In one embodiment of the invention, particularly suitable for use with capsules, the outer receptacle is essentially a cylindrical storage container for capsules having one end preferably permanently closed. Alterna-5 tely the outer receptacle can be closed with a removable cap or may be fitted with a locking closure which may be joined directly to the neck of a standard capsule bottle thus providing a permanently attached dispensing device for said bottle. The outer receptacle is divided lO into the upper storage compartment and the lower 5 52643 delivery compartment by a funnel-shaped capsule delivery guide integrally joined to the inner walls of said outer receptacle and terminating at its narrow end in the delivery tube, the end of which tube is provided with 5 inwardly bevelled walls forming a delivery tube ramp at the open terminal end acting as a delivery port.

The outer receptacle is preferably further provided with a circular distributor plate or disc having a central opening preferably in the shape of 10 a sexafoliate circle or a sexfoil, said distributor plate being closely fitted at its outer circumference to the inner walls of said outer receptacle and positioned immediately adjacent to the funnel-shaped capsule delivery guide. 15 An inner receptacle of smaller diameter is telescoped inside the outer receptacle allowing limited reciprocating motion within said outer receptacle between a rest position and an operating position. The inner walls of said 20 inner receptacle are fitted with a plurality of arcuate members acting as an escapement alternately allowing or preventing the passage of a small object from the upper storage compartment to the lower delivery compartment. Said arcuate members can have both concave and 25 convex surfaces and be resiliently mounted on flexible rodlike projecting members integrally attached to the inner walls of said inner receptacle and positioned immediately below the capsule delivery port. Said arcuate members are closed together at 30 their upper extremities blocking the capsule delivery port in the operating position and are closed at lower extremities and form a claw-like cradle in the rest position. The resiliently mounted arcuate members 5 2 6 4 3 6 are positioned against the capsule delivery tube ramp in such a way that the resiliently mounted arcuate members exert a force tending to force the inner receptacle out of the outer receptacle. The inner wall of the outer 5 receptacle and the outer wall of the inner receptacle are provided with opposing shoulders extending circumferentially around said receptacles to limit the reciprocal motion of said inner receptacle and prevent the escape of the inner receptacle. 10 In an alternate embodiment of the invention especially suitable, for use with tablets or similar disc shaped objects, the structure of the device is modified to accommodate the disc shape of the tablets. In this alternate embodiment the outer receptacle is 15 fitted at the lower end of the funnel-shaped delivery guide with a tablet delivery tube which is essentially rectangular in cross section to align the tablets in edge to edge order. The delivery end of said tube is provided with outwardly bevelled walls forming a gate 20 opening and tablet delivery means. Said outer receptacle and funnel-shaped delivery guide are further provided with a fixed vertical dividing wall of diamond shaped cross section extending through part of the vertical dimension of the outer receptacle. This 25 divider wall partially aligns the tablets for edge to edge entry into the tablet delivery tube. In this alternate embodiment the inner receptacle is provided with resiliently mounted finger or bar elements positioned to act as a gate to prevent delivery of a 30 tablet when in the rest or non-operating position and to allow delivery of a single tablet when in the operating position. In this alternate embodiment the inner receptacle is also telescoped inside the lower delivery 7 52643 compartment of the outer receptacle allowing limited reciprocating motion within said outer receptacle between a rest position and an operating position. The inner walls of said inner receptacle are fitted with a 5 framework structure bearing resiliently mounted bar members. Said bar members are mounted at their lower extremities so that the tablet delivery tube is partially blocked by the upper extremities of said bar members when in the rest position. The upper 10 extremities of said bar members are slightly enlarged in cross section relative to the lower and middle parts of the bar members. The upper extremities of said bar members are positioned against the outwardly bevelled tablet delivery tube ramp so that said upper extremities 15 are spread apart, allowing a tablet to escape when the inner receptacle is pressed against a surface, such as the palm of the user's hand. Release of pressure allows the inner receptacle to return to the rest position blocking the tablet delivery tube and preventing escape 20 of a tablet in the rest position.

In order to operate the device it is only necessary to press the projecting inner receptacle into the outer receptacle until the capsule drops out of the device. It should be noted that pressing the inner 25 receptacle into the outer receptacle forces the arcuate members against the inclined capsule delivery tube ramp preventing the escape of a second capsule from the capsule delivery tube by formation of a gate across the capsule delivery tube port. It should further be noted 30 that when the device is allowed to come to the operating position the resiliently mounted arcuate members exert a 52643 8 force tending to force the inner receptacle out of the outer receptacle. At the rest position, the ends of arcuate members adjacent the delivery tube ramp return to the open position allowing a capsule to enter the 5 claw-like cradle formed by the closed lower ends of the arcuate members in the rest position.

In an alternate embodiment of the present invention the length of said arcuate members may be varied so that a measured number of small objects can be 10 delivered at one time. It should be noted that the number of small objects which may be delivered at one time is directly dependent on the length of the arcuate members. In the further alternate embodiment adapted for use with disc-shaped tablets, the device delivers 15 tablets by pressing the inner receptacle into the outer receptacle until the tablet drops through the tablet delivery tube. When in the rest position, the tablet exit port is blocked by the upper extremities of the resiliently mounted bar members. When the inner 20 receptacle is pressed into the upper outer receptacle, the resiliently mounted bar members are spread apart allowing a tablet to exit and said bar members exert a force against the outwardly bevelled ramp tending to force the inner receptacle out of the outer receptacle. 25 At the rest position the upper extremities of the resiliently mounted bar members partially block the tablet delivery port preventing further tablet escape.

A special feature of the invention is its simplicity of operation for individuals affected by 30 disease which limits finger mobility. Thus such an individual need only invert the dispensing device and press lightly against the palm of his hand thus dropping a capsule into the hand. 9 526 4 3 It should further be noted that the container can be made of any suitable material but preferably of polyethylene, polypropylene, polystyrene, polyvinyl chloride or nylon. Preferably high density 5 polyethylene is used for the body of the device, nylon is used for the construction of the resilient hinge member carrying the arcuate members, and polypropylene for the cap.

As previously indicated, the dispensing device 10 may be closed at the storage end by any conventional closure device. Non-removable closures are preferred since the container is preferably filled by the manufacturer and discarded after use. The exit end of the device may also be fitted with a closure device such 15 as a conventional screw cap, snap or a child-resistant closure.

The invention is diagranmatically illustrated by way of example in the accompanying drawings, in which Fig. 1 is a front view of a medicament 20 dispensing container according to the invention in an inverted position for storage; Fig. 2 is a view of the container of Fig. 1 as it would be used, that is to say the container is in an operating position with an inner cylinder pressed 25 against the palm of a user's hand thereby releasing a capsule into the palm; Fig. 3 is a view of the container as it would be used, that is to say after a capsule has been delivered and the inner cylinder has returned to a rest 30 position; Fig. 4 is a longitudinal view of the container with a portion of the outer casing cut away to expose the operational inner section of the container; 52643 10 Fig. 5 is an enlarged longitudinal section of a portion of the container in the rest position in which only the section of the container having moving parts is shown, in which a capsule is shown being held in a 5 claw-like cradle formed by the arcuate members in the rest position; Fig. 6 is an enlarged longitudinal section of a portion of the container in the operating position in which only the section of the container having moving 10 parts is shown, in which the two cylinders are in registry, forcing the arcuate members against the capsule delivery tube ramp forming a gate blocking a capsule from leaving the delivery tube while delivering a single capsule to the exit port; 15 Fig. 7 is a section of the storage part of the container at the distributor plate or disc showing the sexfoil or sexafoliate circle cut out in the disc to align the capsules in their entry to the funnel-shaped capsule delivery guide; 20 Fig. 8 is a view of a cross-section through the entire container showing the lateral displacement of the four arcuate members and the two telescoped cylinders and the outer casing; Fig. 9 is an enlarged longitudinal section of 25 the alternate tablet device in which only the section of the conainer having moving parts is shown in which a tablet is blocked from leaving the tablet delivery tube in the rest position; Fig. 10 is an enlarged longitudinal section of 30 the alternate tablet device shown in Fig. 9 but rotated 90° around the longitudinal axis; and Fig. 11 is an enlarged longitudinal section of the alternate tablet device of Fig. 9 shown in the operating position. 52643 U The dispensing device comprises two main elements, an outer cylinder 1 and an inner cylinder 2 which is telescoped inside the outer cylinder.

Referring to Figs. 4 to 8, the outer cylinder 5 which may have one end permanently closed or may be closed by means of a removable top 12, includes a funnel-shaped capsule delivery guide 3 integrally joined at its widest circumference to the inner surface of the outer cylinder JL. Preferably a distributor disc 6 is positioned 10 imnediately above the funnel-shaped guide ^ to align the objects to be dispensed before entry into the funnel-shaped guide and thereby prevent jamming in the guide. The funnel-shaped guide 3 is joined at its narrow end to a relatively thick walled capsule delivery tube 4^ termina-15 ting in an opening provided by inwardly bevelled walls forming a capsule delivery tube ramp 15. The funnel-shaped guide 3^ is preferably located approximately midway between the extreme ends of the outer cylinder JL.

The inner cylinder 2 is telescoped within the 20 outer cylinder 1 at the end at which the delivery tube is provided at the narrow end of the funnel-shaped capsule delivery guide 3. The inner cylinder 2 is reciprocally slidable within the outer cylinder between two 52643 12 positions. In a first operating position shown in Fig. 6, the ends of the inner cylinder 2 and the outer cylinder 1 are flush whereas in a second rest position shown in Fig. 5, the inner cylinder 2 protrudes 5 a small distance from the outer cylinder 1^ The inner walls of the inner cylinder are provided with a plurality, preferably four, rod-like hinge supports f) projecting radially inwardly and terminating in flat resilient hinge members 8 carrying arcuate members J. 10 forming a gate positioned in alignment with the longitudinal axis of the cylinder with concave surfaces of said arcuate members faced toward the longitudinal axis and convex surfaces faced toward the cylinder walls. These arcuate members 1_ are positioned immediately 15 below the capsule delivery tube so that one end of each arcuate member 2 is in slidable contact with the bottom edge of the capsule delivery tube ramp 5.

It can be seen from Figs. 5 and 6 that in the rest position of Fig. 5 20 the lower ends of the arcuate members 7 are brought together forming a claw-like cradle suitable for holding cne of the objects to be dispensed. The inner cylinder 2 in this position is prevented from sliding further out of the outer cylinder 1 by co-cperating ridges or shoulders 10, 11 25 located respectively circumferentially cn the outer wall of the inner cylinder 2 and circumferentially on the inner wall of the outer cylinder 1. In the operating position of Fig. 6, the inner cylinder 2 is flush with the outer cylinder _l exerting a vertical 30 force transmitted through the hinge support msribers 9, and the resilient hinge members and holding the upper ends of the arcuate members in closed relationship acting as a gate preventing the exit of the objects from the capsule delivery tube £. 52643 13 To align and distribute the capsules as they enter the funnel-shaped capsule delivery guide 3, the removable disc 6 has a sexfoil opening 13, Fig. 7, said disc 6 being closely fitted to the 5 inner wall of the upper compartment of the outer cylinder 1^ and placed at the circumferential junction 14^ of the funnel-shaped guide 2 and the inner wall of said outer cylinder.

In the embodiment for use with tablets or disc-shaped 10 objects shown in Figs. 9-11, an inner cylinder 22 is telescoped within an outer cylinder 20 enclosing a tablet delivery tube 24 at the narrow end of a funnel-shaped tablet delivery guide ^3. The inner, lower cylinder 22^ is reciprocally slidable between a rest position 15 illustrated in Figs. 9 and 10 and an operating position illustrated in Fig. 11. In the rest position the tablet is prevented from dropping out of the tablet delivery tube 2£ by enlarged upper ends 26^ of vertically mounted bar members 2J_. In the operating 20 position of Fig. 11 the inner, lower cylinder 22 and a projecting inner framework structure 28 is pressed vertically into the outer cylinder 20 forcing the enlarged heads 26 of the vertical bar members 2J7 against a capsule tube delivery ramp 2!5 thereby 25 spreading the upper ends 2J> of the bar members 2J apart and allowing a tablet to drop from the tablet delivery tube 24. Release of pressure on an inner cylinder framework 29 allows the inner cylinder 22 to return to the rest position. The inner cylinder 22 is provided with 14 external upper 3jL lower 30 circumferential rings. The inner cylinder 22_ is thus prevented from sliding completely free of the upper cylinder and is held in position to prevent tablet escape by contact of the lower circumferential ring ^0 with an internal shoulder 31 acting as a stop at the lower end of the outer cylinder 20.

A partial vertical divider wall £1 of diamond shaped cross section bisects an upper storage compartment ^4 of the outer cylinder 20 and extends partially downward into the funnel-shaped delivery guide 23. This divider wall £1 serves to separate and align the tablets dropping into the delivery guide 23 for edge to edge entry into the delivery tube 24 thus helping to provide smooth operation of the device. 52643 15

Claims

CLAIMS:

1. A medicament storing and dispensing device for storing small objects and dispensing them one at a time comprising two receptacles one telescoped within the other and a 5 resilient means acting as a gate between a storing compartment and a delivery compartment, an outer one of the receptacles containing the objects to be dispensed and having an inner structure which divides the outer receptacle into an upper compartment and a lower compartment and a connecting delivery 10 tube which has a bevelled end ramp, the other, inner receptacle being slidably enclosed by the lower compartment of the outer receptacle and having an inner structure for receiving and dispensing capsules by reciprocal motion within the outer receptacle, and the resilient means exerting a force tending 15 to separate the outer and inner receptacles and entry of the small objects into the inner receptacle being controlled by reciprocal motion of the inner receptacle within the outer receptacle.

2. A medicament storing and dispensing device according 20 to Claim 1, for dispensing single small capsule-shaped objects, wherein the resilient means comprises: a plurality of resilient members attached at one end to the inner wall of said inner receptacle and exerting a force tending to separate said outer and inner receptacles; 25 and a plurality of arcuate members having convex and concave faces attached on the convex face to said resilient members, said arcuate members being positioned to slide against said inwardly bevelled end ramp with reciprocating 30 motion of said inner receptable and said inner and outer receptacles being provided in their opposing faces with integrally attached circumferential rings or shoulders, which prevent the escape of the inner receptacle from the outer receptacle. 35

3. A medicament storing and dispensing device according 52643 16 to Claim 2, which contains a distributing and aligning disc having an opening to align the capsule-shaped objects, said disc being peripherally fitted to the inner wall of said upper storage compartment. 5

4. A medicament storing and dispensing device according to Claim 2 or 3, wherein said inner dividing structure of the outer receptacle consists of a funnel-shaped guide integrally attached to the inner walls of said container at the circumference of the funnel rim and terminating at its narrow end 10 in the delivery tube.

5. A medicament storing and dispensing device according to any one of Claims 2 to 4, wherein said arcuate members have facing concave surfaces forming a ribbed cage-like holder and are positioned to maintain sliding contact at one 15 end with the bevelled end ramp of the delivery tube whereby said arcuate members are brought alternately together at said sliding contact ends to form a gate preventing exit of the small objects or at the opposite ends provide a ribbed cagelike holder open to the delivery tube to permit entry of one 20 of the small objects from said tube.

6. A medicament storing and dispensing device according to Claim 3, 4 or 5 when appendant to Claim 3, wherein said opening in the distributing and aligning disc is in the shape of a sexafoliate circle or sexfoil. 25

7. A medicament storing and dispensing device according to any one of Claims 1 to 6, wherein said upper compartment of said outer receptacle is provided with a locking closure for attachment to the neck of a standard capsule bottle.

8. A medicament storing and dispensing device according to 30 Claim 1, for dispensing tablets, wherein the resilient means comprises: bar-shaped members resiliently mounted on the inner structure of said inner receptacle and vertically positioned to act as a gate controlling the release of the tablets from 35 said delivery tube. 52643 17

9. A medicament storing and dispensing device according to Claim 8, wherein said bar shaped members have enlarged upper ends and are positioned to slide against said outwardly bevelled end ramp whereby said bar members are spread 5 apart when said inner receptacle is pressed into said outer receptacle and return to a parallel position partially blocking the tablet delivery tube when pressure is released.

10. A medicament storing and dispensing device according to Claim 9, wherein said tablet delivery tube is of rectangu- 10 lar cross section whereby the tablets are restricted to an edge to edge alignment.

11. A medicament storing and dispensing device according to Claim 1, substantially as hereinbefore described with reference to and as illustrated in Figs. 1-8 and Figs. 9-11 15 of the accompanying drawings. F. R. KELLY & CO. AGENTS FOR THE APPLICANTS.