This application relates to an item dispenser in which items are dispensed from a container. In particular, the application relates to a dispenser for solid dosage forms, which may include pills, compacts, capsules and caplets.
Individuals with limited or compromised dexterity, with limited or compromised faculties, or with a combination thereof, may have difficulty administering solid dosage forms to themselves. Also, the individuals may have difficulty complying with dosage timing requirements. Solid dosage forms are often provided in bottles in which many doses are stored in an aggregate. Whereas such bottles may have sufficiently wide mouths to provide access to multiple fingers, the doses must be separated and administered individually. Also, such aggregates do not provide a means of keeping track of dosing information such as times for future administration of the solid dosage forms and times of past administration of the solid dosage forms.
In contrast, individualized packaging, such as blister packs or egg-carton style dispensers, which may include partitions for storing different dosage forms for administration at different times, often require dexterity and strength to extract the dosage forms.
Furthermore, it is often difficult to provide dispensing apparatus for adults of limited dexterity and strength without making solid dosage forms available to the children.
It would be desirable, therefore, to provide apparatus and methods for dispensing solid dosage forms in a manner that facilitates dispensing of solid dosage forms.
It would also be desirable, therefore, to provide apparatus and methods for dispensing solid dosage forms in a manner that facilitates dispensing of solid dosage forms and reduces the likelihood that the solid dosage forms will be dispensed by a child.
It also would be desirable, therefore, to provide apparatus and methods for dispensing solid dosage forms in a manner that facilitates compliance with a therapeutic regimen.
Solid dosage form dispensers and methods for dispensing solid dosage forms are provided. In some embodiments of the invention, the solid dosage form dispenser may include a housing, a cap and a snap fastener. The cap may be pivotably attached to an open end of the housing. The cap may pivot between a closed position (in which the housing is closed) and an open position (in which the housing is open). The snap fastener may extend from the cap to the housing and engage the housing to lock the cap in the closed position. The cap may include a clearance arch to provide room inside the cap for a solid dosage form carriage when the cap is in the closed position.
In some embodiments of the invention, the solid dosage form dispenser may include an elongated housing, a conveyor belt, and a conveyor belt support member. The housing may have an opening at an end. The conveyor belt may guide at least a portion of a solid dosage form carriage across the opening for dispensing the solid dosage form and retiring the solid dosage form carriage after dispensing the solid dosage form. The solid dosage form carriage may be affixed to the conveyor belt. The conveyor belt may be subject to a tension that is generated by the conveyor belt support member.
In some embodiments of the invention, the solid dosage form support member may include a housing, a solid dosage form carriage, and a movable support. The movable support may support the solid dosage form carriage. The movable support may be attached to the housing and being movable within the housing. The movable support may be indexed to position the solid dosage form carriage at (1) a first position in which the solid dosage form carriage is positioned to release only a first solid dosage form; and (2) a second position in which the solid dosage form carriage is positioned to release a second solid dosage form.
The objects and advantages of the invention will be apparent upon consideration of the following detailed description, taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout, and in which:
Solid dosage form dispensers and methods for dispensing solid dosage forms are provided. In some embodiments of the invention, the solid dosage form dispenser may include a housing, a cap and a snap fastener. The cap may be pivotably attached to an open end of the housing. The cap may pivot between a closed position (in which the housing is closed) and an open position (in which the housing is open). The snap fastener may extend from the cap to the housing and engage the housing to lock the cap in the closed position. The cap may include a clearance arch to provide room inside the cap for a solid dosage form carriage when the cap is in the closed position.
In some embodiments of the invention, the solid dosage form dispenser may include an elongated housing, a conveyor belt, and a conveyor belt support member. The housing may have an opening at an end. The conveyor belt may guide at least a portion of a solid dosage form carriage across the opening for dispensing the solid dosage form and retiring the solid dosage form carriage after dispensing the solid dosage form. The solid dosage form carriage may be affixed to the conveyor belt. The conveyor belt may be subject to a tension that is generated by the conveyor belt support member.
In some embodiments of the invention, the solid dosage form support member may include a housing, a solid dosage form carriage, and a movable support. The movable support may support the solid dosage form carriage. The movable support may be attached to the housing and being movable within the housing. The movable support may be indexed to position the solid dosage form carriage at (1) a first position in which the solid dosage form carriage is positioned to release only a first solid dosage form; and (2) a second position in which the solid dosage form carriage is positioned to release a second solid dosage form.
Carriages 104 may be linked together in a continuous chain (not shown in full) that is supported in an elongated path by support 106.
When carriage 116 is moved in direction A, carriage 116 pulls the entire carriage chain along its path. The indexing mechanism may stabilize the chain after a discrete amount of movement along the path. After the discrete amount of movement, carriage 116 will have moved into the position of carriage 122. Carriage 122 will move toward enclosed portion 103 of housing 102. Carriage 123 will move into the position that carriage 116 occupies in
Dispenser 100 may include a mechanical linkage (not shown) for advancing indicator 108. Indicator 108 may be indexed in coordination with carriages 104 so that symbols 124, which as illustrated in
Carriages 104 may have any suitable shape.
For example, pill P4A has diameter D1 and diameter D2. Inner surface 408 has corresponding dimensions h1 and h2. Although there is a general correspondence between D1 and h1, and between D2 and h2,
Pill P4B may have diameter D3. Carriage 404 may have dimensions h1 and h2 to accommodate diameter D3. Inner surface 410 of carriage 404 may be closely contoured at arcs 424 and 426 to match the curvature of pill P4B. In some embodiments, inner surface 410 may include fit points or fit areas corresponding to fit points 416, 418, 420 and 422 of carriage 402.
Pill P4C has diameters D4 and D5. Dimension h3 of inner surface 412 corresponds to dimension h3 so that pill P4C contacts or nearly contacts inner surface 412 at carriage base and carriage ceiling 430. When appropriate, a carriage chain may include carriages of different shapes, as does partial chain 400. Carriage chains that include carriages of different shapes may be used to manufacture solid dosage dispensers that dispense pills of different shapes. This may be desirable when a drug therapy regimen includes different types of drugs, pills of different shapes, or pills of different dosages.
Partial carriage chain 400 includes hinges 432 and 434. Hinges 432 and 434 connect carriages 402 to 404 and 404 to 406. Hinges 432 and 434 include pins such as 438 and split rings such as 440. Carriages 402, 404 and 406 may include webs such as 442 (on carriage 406) and 444 (on carriage 402). Web 442 supports pin 438. Web 444 supports a top portion of ring 440. Bottom portion 446 of ring 440 extends from carriage 402 near the bottom of carriage 402.
Carriages 402, 404 and 406 may include, respectively, bottom surfaces 492, 494 and 496. Bottom surfaces 492, 494 and 496 may slide along portions of a carriage chain support such as 106. Hinges such as 434 and 438 may operate, respectively, as guides on edges of support 106. For example, hinges 434 may guide carriage 404 along front edge 125 and rear edge 127 of bottom end 122 of support 106 (shown in
In some embodiments of the invention an intermediate belt (not shown) may be present between bottom surface 494 and support 106. The intermediate belt may form a loop that is present between support 106 and a carriage chain. In some embodiments of the invention, the intermediate belt may be fixed to support 106 and provide a sliding surface for bottom surfaces such as carriage bottom 494. In some embodiments, carriages may be fixed to the intermediate belt. In those embodiments, the intermediate belt may be configured to slide against support 106. (An illustrative intermediate belt is described below in configuration with
Carriage chains that are linked to each other as set forth above, or in any other suitable manner, may be supported by a chain support member such as 106 (shown in
Intermediate belt 802 may be supported at the bottom by cylinder 814. Intermediate belt 802 may slide along the outer cylindrical surface of cylinder 814. Cylinder 814 may be held apart from top gear 804 by static support 816 and dynamic support 818. Intermediate belt 802 may be selected to have a length such that when intermediate belt 802 is supported by gear 804 and cylinder 814, dynamic support 818 compresses elastically and creates tension in intermediate belt 802. The tension may help keep intermediate belt 802 in sliding contact with cylinder 814. Dynamic support 818 may include leg 820 and complementary leg 822 (shown in part).
Bends 824 and 826, in legs 820 and 822, respectively may compress in a direction parallel to L3 to create the aforementioned tension. Bends 824 and 826 may substantially maintain the tension required to keep intermediate belt 802 in contact with cylinder 814 during operation of conveyor assembly 800. During operation, a user may urge one or more of carriages 810 in direction B to dispense a pill (not shown). Without dynamic support 818, such operation might deform intermediate belt 802 such that intermediate belt 802 would be urged off of cylinder 814. Compression or extension of dynamic support 818, in response to the operation, may prevent the deformation from causing intermediate belt 802 to lose contact with cylinder 814.
Legs 820 and 822 may be spaced apart from each other to resist torsion around longitudinal axis L3. Legs 820 and 821 may have a thickness such as t1 to resist torsion around axis L3. Thickness t1 may also resist flexion around transverse axis T1.
The Stages may be characterized, at least partially, as follows:
At Stage III, channels 908 and 910 prevent pill P9B from rotating within carriage 902. Because pill P9B is unable to rotate, it continues to be retained inside carriage 902 by rim 901.
Cap 1104 may include rotating slider 1106, front face 1114 and track 1108. Track 108 may include main course 1118 and one or more side bays such as side bay 1120.
Rotating slider 1106 may rotate, in front of front face 1114, about axis L4. Rotating slider 1106 may include one or more blades (not shown) that travel in track 1108 as rotating slider 1106 rotates around axis L4. When snap fastener 1110 is engaged with housing 1102, snap fastener 1110 may be disengaged from housing 1102 by compressing track 1108. Compression of track 1108 moves front face 1114 toward the back of dispenser 100 and levers snap fastener 1110 away from housing 1102, because there is a fulcrum (not shown) behind front face 1114.
In
Dispenser 1110 may be unlocked by sliding slider 1106 in the direction of arrow 1122 until each blade (not shown) is aligned with a side bay in track 1108. When each blade is aligned with a side bay, track 1108 can be compressed and snap fastener 1110 can be disengaged from housing 1102. Dispenser 1110 includes alignment indicia 1124 and 1126 on the top of cap 1104 and on the top of slider 1106, respectively. When indicia 1124 and 1126 are aligned with each other, the blades are aligned with respective side bays in track 1108 and cap 1104 can be opened. (
Track 1108 may be compressed manually. For example, a user may hold housing 1102 in his hand and press on textured region 1140 of slider 1106. The user may press on textured region 1140 while holding slider 1106 so that indicia 1124 and 1126 are aligned with each other.
Snap fastener 1110 extends down from slider 1106. Slider 1106 includes blade 1144. Blade 1144 is in track 1108, but is not aligned with a side bay (not present in the cross-sectional view). When blade 1144 is positioned in track 1108, but is not aligned with a side bay, track 1108 cannot be compressed, so snap fastener 1110 cannot be disengaged from housing 11102.
Thus, systems and methods for dispensing solid dosage forms have been provided. Persons skilled in the art will appreciate that the present invention can be practiced by other than the described embodiments, which are presented for purposes of illustration rather than of limitation, and the present invention is limited only by the claims which follow.