Multi-cavity blister package for storing and dispensing flowable substances

A disposable single-use multi-cavity package (10) for housing and administration of at least a first flowable substance (S1) and a second flowable substance (S2), having an administration end (12), a gripping end (14), a maximum longitudinal length (18), a maximum transverse width (20), and a perimeter (16) that is substantially symmetrical about a line of symmetry (30) running substantially parallel to the maximum longitudinal length (18) and extending through the midpoint of the maximum transverse width (20), comprising:

• a blister layer (100) having a blister layer perimeter (110) with one or more exterior edges (112), a blister layer exterior surface (120), a blister layer interior surface (130), and formed with at least a first product storage cavity (160), a second product storage cavity (170), a first product application channel (162), a second product application channel (172), wherein the first product application channel (162) has a proximal end (166) in fluid communication with the first product storage cavity (160) and a distal end (167), and the second product application channel (172) has a proximal end (176) in fluid communication with the second product storage cavity (170) and a distal end (177), and wherein the blister layer (100) has a blister layer tab creation separation line (140), having two endpoints (142), located interior to the blister layer perimeter (110) thereby selectively reducing the strength of the blister layer (100) at the blister layer tab creation separation line (140) and generally defining a blister layer tab creation area (150), and wherein the first product storage cavity (160), the second product storage cavity (170), the first product application channel (162), and the second product application channel (172) do not extend to the blister layer perimeter (110), and including a blister layer fold promoting feature (180) in the blister layer (100) located substantially on the line of symmetry (30) that reduces the rigidity of the blister layer (100);
• a base layer (200) having a base layer perimeter (210) with one or more exterior edges (212), a base layer exterior surface (220), a base layer interior surface (230), and a base layer tab creation separation line (240), having two endpoints (242), located interior to the base layer perimeter (210) thereby selectively reducing the strength of the base layer (200) at the base layer tab creation separation line (240) and generally defining a base layer tab creation area (250), and including a base layer fold promoting feature (260) in the base layer (200) located substantially on the line of symmetry (30) that reduces the rigidity of the base layer (200);
• wherein
• at least a 3.0 mm wide surface area of the base layer interior surface (230) is joined to the blister layer interior surface (130) such that the base layer (200) seals the interior of the first product storage cavity (160), the second product storage cavity (170), the first product application channel (162), and the second product application channel (172) from the exterior environment, and wherein the base layer tab creation separation line (240) and the blister layer tab creation separation line (140) substantially overlay one another and the base layer tab creation area (150) and the blister layer tab creation area (250) substantially overlay one another.

A method for dispensing a first flowable substance (S1) and a second flowable substance (S2) from a blister package, said method comprising:

• (i) application of a force to a base layer tab creation area (250) and a blister layer tab creation area (150) thereby causing separation of a portion of the base layer (200) at the base layer tab creation separation line (240) and a portion of the blister layer (100) at a blister layer tab creation separation line (140) such that a tab (300), having a base layer component (310) and a blister layer component (320), is created;
• (ii) removal of the tab (300) from the blister package (10) by pulling the tab (300) away from a gripping end (14) of the blister package (10) thereby tearing the base layer (200) and the blister layer (100) from at least one of the blister layer separation line endpoints (142) and at least one of the base layer separation line endpoints (242) to the blister layer perimeter (110) and the base layer perimeter (210) across a first product application channel (162) and a second product application channel (172) creating a first channel opening (168) and a second channel opening (178) thereby exposing the interior of the first product application channel (162) and the second product application channel (172) to the exterior environment and creating a sinistral wing (400) and a dextral wing (500);
• and
• (iii) rotating the sinistral wing (400) or the dextral wing (500) about a blister layer fold promoting feature (180) and a base layer fold promoting feature (260) so that the first channel opening (168) and the second channel opening (178) pivot toward one another, and applying a force to the blister package (10) such that the pressure of the first flowable substance (S1) and the second flowable substance (S2) is increased thereby causing (a) the first flowable substance (S1) to flow from the first product storage cavity (160) through the first product application channel (162) and exit the blister package (10) through the first channel opening (168), and (b) the second flowable substance (S2) to flow from the second product storage cavity (170) through the second product application channel (172) and exit the blister package (10) through the second channel opening (178).

A disposable single-use multi-cavity blister package (10) for housing and common administration of at least a first flowable substance (S1) and a second flowable substance (S2) having an administration end (12), a gripping end (14), a maximum longitudinal length (18), a maximum transverse width (20), and a perimeter (16) that is substantially symmetrical about a line of symmetry (30) running substantially parallel to the maximum longitudinal length (18) and extending through the midpoint of the maximum transverse width (20), comprising:

• a blister layer (100) having a blister layer perimeter (110) with one or more exterior edges (112), a blister layer exterior surface (120), a blister layer interior surface (130), and formed with at least a first product storage cavity (160), a second product storage cavity (170), a first product application channel (162), a second product application channel (172), wherein the first product application channel (162) has a proximal end (166) in fluid communication with the first product storage cavity (160) and a distal end (167), and the second product application channel (172) has a proximal end (176) in fluid communication with the second product storage cavity (170) and a distal end (177), and wherein the blister layer (100) has a blister layer tab creation separation line (140), having two endpoints (142), that is substantially concave in shape, opening toward the administration end (12), and is substantially symmetric about the line of symmetry (30) and located interior to the blister layer perimeter (110) thereby selectively reducing the strength of the blister layer (100) at the blister layer tab creation separation line (140) and generally defining a blister layer tab creation area (150), and wherein the first product storage cavity (160), the second product storage cavity (170), the first product application channel (162), and the second product application channel (172) do not extend to the blister layer perimeter (110), and including a blister layer fold promoting feature (180) in the blister layer (100) located substantially on the line of symmetry (30) that reduces the rigidity of the blister layer (100) including at least one slit extending from the blister layer exterior surface (120) to the blister layer interior surface (130);
• a base layer (200) having a base layer perimeter (210) with one or more exterior edges (212), a base layer exterior surface (220), a base layer interior surface (230), and a base layer tab creation separation line (240), having two endpoints (242), that is substantially concave in shape, opening toward the administration end (12), and is substantially symmetric about the line of symmetry (30) and located interior to the base layer perimeter (210) thereby selectively reducing the strength of the base layer (200) at the base layer tab creation separation line (240) and generally defining a base layer tab creation area (250), and including a base layer fold promoting feature (260) in the base layer (200) located substantially on the line of symmetry (30) that reduces the rigidity of the base layer (200) including at least one slit extending from the base layer exterior surface (220) to the base layer interior surface (230);
• wherein
• the first product application channel (162) has a centerline (165) and the second product application channel (172) has a centerline (175), and the first channel centerline (165) and the second channel centerline (175) are substantially symmetric about the line of symmetry (30), and a projection of the first channel centerline (165) from the first channel distal end (167) converges toward a projection of the second channel centerline (175) from the second channel distal end (177) at a discharge convergence angle (190) of approximately one hundred and eighty degrees such that the first channel distal end (167) and the second channel distal end (177) point substantially toward each other from opposite sides of the line of symmetry (30), and the orthogonal distance from the first channel distal end (167) to the line of symmetry (30) is less than the orthogonal distance from the first blister layer separation line endpoint (142) to the line of symmetry (30), and the orthogonal distance from the second channel distal end (177) to the line of symmetry (30) is less than the orthogonal distance from the second blister layer separation line endpoint (142) to the line of symmetry (30);
• and
• at least a portion of the surface area of the base layer interior surface (230) is joined to the blister layer interior surface (130) such that the base layer (200) seals the interior of the first product storage cavity (160), the second product storage cavity (170), the first product application channel (162), and the second product application channel (172) from the exterior environment, and wherein the base layer tab creation separation line (240) and the blister layer tab creation separation line (140) substantially overlay one another and the base layer tab creation area (150) and the blister layer tab creation area (250) substantially overlay one another, and dispensing the first flowable substance (S1) and the second flowable substance (S2) requires:
• (i) application of a force to the base layer tab creation area (250) and the blister layer tab creation area (150) thereby causing separation of a portion of the base layer (200) at the base layer tab creation separation line (240) and a portion of the blister layer (100) at the blister layer tab creation separation line (140) such that a tab (300), substantially symmetric about the line of symmetry (30) and having a base layer component (310) and a blister layer component (320), is created,
• (ii) removal of the tab (300) from the blister package (10) by pulling the tab (300) away from gripping end (14) of the blister package (10) thereby tearing the base layer (200) and the blister layer (100) from at least one of the blister layer separation line endpoints (142) and at least one of the base layer separation line endpoints (242) to the blister layer perimeter (110) and the base layer perimeter (210) across the first product application channel (162) and the second product application channel (172) creating a first channel opening (168) and a second channel opening (178) thereby exposing the interior of the first product application channel (162) and the second product application channel (172) to the exterior environment and creating a sinistral wing (400) and a dextral wing (500), and;
• (iii) rotating the sinistral wing (400) or the dextral wing (500) about the blister layer fold promoting feature (180) and the base layer fold promoting feature (260) so that the first channel opening (168) and the second channel opening (178) pivot toward one another, and applying a force to the blister package (10) such that the pressure of the first flowable substance (S1) and the second flowable substance (S2) is increased thereby causing (a) the first flowable substance (S1) to flow from the first product storage cavity (160) through the first product application channel (162) and exit the blister package (10) through the first channel opening (168), and (b) the second flowable substance (S2) to flow from the second product storage cavity (170) through the second product application channel (172) and exit the blister package (10) through the second channel opening (178).

A disposable single use multi-chamber package for housing and administration of at least a first flowable substance and a second flowable substance comprising a perimeter, an administration end, a gripping end, a maximum longitudinal length, and a maximum transverse width comprising:

• a) at least one layer of a heat sealable pouch material having an exterior surface and an interior surface, the at least one layer of pouch material being formed with at least a first product storage cavity, a second product storage cavity, a first product application channel, a second product application channel,
• wherein the first product application channel has a proximal end and is in fluid communication with the first product storage cavity and a distal end;
• a second product application channel has a proximal end and is in fluid communication with the second product storage cavity and a distal end, and
• wherein the pouch material has a tab creation separation line having two end points located interior to the pouch material perimeter thereby selectively reducing the strength of the pouch material at the tab creation separation line, generally defining a pouch material tab creation area, and wherein the first product storage cavity, the second product storage cavity, the first product application channel, and the second product application channel do not extend to the pouch material perimeter;
• b) wherein application of a force to the pouch material tab creation area causes separation of a portion of the pouch material at the tab creation separation line such that a tab is created;
• removal of the tab from the package by pulling the tab away from the gripping end of the package thereby tearing the pouch material across the first product application channel and the second product application channel creating a first channel opening and a second channel opening thereby exposing the interior of the first product application channel and the second product application channel to the exterior environment;
• creating a sinistral wing and a dextral wing, rotating the sinistral wing or the dextral wing so that the first channel opening and the second channel opening pivot toward one another and applying a force to the package such that the pressure of a first flowable substance and the second flowable substance is increased thereby causing:
• a) the first flowable substance to flow from the first product storage cavity through the first product application channel and exit the package through the first channel opening;
• and
• b) the second flowable substance to flow from the second product storage cavity through the second product application channel and exit the package through the second channel opening.