Information
-
Patent Grant
-
6305576
-
Patent Number
6,305,576
-
Date Filed
Wednesday, January 19, 200025 years ago
-
Date Issued
Tuesday, October 23, 200123 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
- Wood, Herron & Evans, L.L.P.
-
CPC
-
US Classifications
Field of Search
US
- 222 1
- 222 81
- 222 83
- 222 835
- 222 88
- 222 325
- 206 222
- 215 6
- 215 DIG 8
-
International Classifications
-
Abstract
A container, cartridge and method for holding, dispensing and mixing a fluid material comprised of at least two component fluids in an aseptic manner. A cartridge includes a cartridge body for holding one component fluid and having first and second ends. A seal is affixed to the first end of the cartridge body and a movable portion is sealed to the second end of the cartridge body. A movable member is fully disposed within the cartridge body and aseptically sealed between the first and second ends. The movable member may be moved in response to movement of the movable portion at the second end such that the movable member breaks the seal and the fluid material is thereby dispensed from the first end. This allows a fluid component, such as a concentrate, to be readily mixed with another fluid, such as water, under aseptic conditions and immediately contained within an aseptic environment of the container.
Description
FIELD OF THE INVENTION
The present invention generally relates to fluid containers and, more specifically, to aseptic containers for holding, mixing and/or dispensing fluids comprised of at least two different fluid components.
BACKGROUND OF THE INVENTION
Fluids of various types must be stored, shipped, handled and often mixed in containers suitable for the intended application. As used herein, the term “fluid” may refer to any material that can flow, including gases, liquids or particulate solids, such as powders. Often, fluid products are comprised of one or more toxic or potentially harmful substances and one or more non-toxic substances. For example, a concentrated chemical, which may have a toxicity harmful to humans and animals, is often mixed with water and used for various purposes. The uses may be household uses, laboratory or scientific uses, medical uses or other industrial applications. Especially in the case of laboratory, scientific or medical situations, aseptic conditions are often required for the fluid material or materials during storage, shipping, handling and use. Adequate precautions must be taken to prevent outside contaminants from reaching the fluid material within the container. This is typically easy to accomplish during the storage, shipping and handling phases of the product life when all of the fluid components have been mixed at the manufacturing site and sealed in the container until use.
More recently, the use of concentrates mixable with a non-toxic base fluid, such as water, has proliferated due to the associated convenience and environmental benefits. For example, many manufacturers of fluid products now sell concentrates that are mixed with water to form the end product. This reduces the amount of packaging necessary for the product being sold and allows the consumer to reuse a container in which the concentrate is mixed with the base fluid, such as water. Certain drawbacks of two-part systems in which the consumer must mix concentrate with another fluid, such as water, have been recognized in the art. For example, handling large bottles of concentrate can be inconvenient, unsafe and difficult. U.S. Pat. No. 5,529,216 addresses some of these general problems with specific regard to a spray bottle. In this regard, the user can puncture a concentrate insert in the spray bottle by using the draw tube of the spray bottle. Once the insert is punctured, the concentrate is released and mixes with water contained in the bottle.
One area in which problems remain with respect to two-part or multi-part fluid mixing systems is the area of aseptic fluid storage and handling. The product shown in U.S. Pat. No. 5,529,216 fails to address this problem as the use of the draw tube of a spray bottle can easily introduce outside contaminants into the fluid components within the bottle. For these reasons, it would be desirable to provide a fluid storage, handling and mixing system and components therefor that allow at least two fluid components to be mixed just prior to use while ensuring that the mixing takes place under aseptic conditions.
SUMMARY OF THE INVENTION
The present invention therefore provides a manner of safely and efficiently holding and subsequently mixing fluid materials in an aseptic manner within a container. In this regard, a first component fluid may be held in an aseptic manner and subsequently dispensed by a user or by other more automatic manners into a connected container holding a second component fluid while ensuring that the mixing takes place under completely aseptic conditions. The products and methods of this invention may be utilized for various flowable materials or fluids, such as powders, liquids or gases.
In accordance with one aspect of the invention, a cartridge is provided for holding and dispensing a fluid material in an aseptic manner. The cartridge generally includes a cartridge body for holding the fluid material and having first and second ends. A seal is affixed to the first end of the cartridge body and a movable portion is sealed to the second end. A movable member s disposed within the cartridge body and sealed, preferably in an aseptic manner, between the first and second ends. The movable member is moved in response to movement of the movable portion at the second end such that the movable member breaks or opens the seal and the fluid material is then dispensed from the first end.
In the preferred embodiment, the movable member comprises a piercing member mounted for linear movement within the cartridge body and adapted to piece through the seal when acted upon by the movable portion. Preferably, the movable portion of the cartridge is simply manually depressed by the user to push the piercing member through the seal. The seal may be a conventional foil and polymeric layered seal or another type of induction seal or otherwise openable seal structure. The movable portion of the cartridge may be a bellows-shaped portion adapted to manually depressed by a user to move the movable member toward the seal. Other types of movable actuating structure may be utilized as well.
As an alternative to a separately affixed seal at the first end of the cartridge body, the first end of the cartridge body may be an integral portion of the cartridge body, for example, molded integrally with the remaining portions of the cartridge body. In this case, the second end, or movable portion, may be separately affixed such that the fluid material may be introduced through the second end prior to sealing the movable portion thereto. Other manners of introducing the fluid may be devised by those of ordinary skill while retaining the preferred aseptic properties of the cartridge. As another alternative, the seal at the first end of the cartridge body may be configured to open at a predetermined temperature, such as just below an autoclave temperature or approximately 120° C.
The movable member may include a positioning portion which positions and stabilizes the movable member within the cartridge body. As one example, fins may extend radially outward from the movable member so as to center the movable member within the cartridge body, while allowing fluid to flow past the fins. Other manners of stabilizing the movable member within the cartridge body may be utilized as well, if necessary.
The cartridge can further comprise a connector portion operatively connected with the cartridge body. The connector portion is adapted to be affixed adjacent a cap assembly of a container such that the cartridge body extends into the container in position for dispensing the fluid material upon activation of the movable member. The connector portion may, for example, comprise a flange configured to engage the container and be removably received in an open end thereof.
As another aspect of the invention, a container is provided for holding a fluid material comprising at least two separate component fluids. The container includes a container body for holding the component fluids and having an opening. The opening receives the cartridge as described above. The container body may be flexible or rigid and may take on many different shapes and be formed of many different types of material and sizes. The opening that receives the cartridge may be a dispensing opening, for example, which includes a cap for selectively opening and closing the opening. Alternatively, the cartridge may communicate with the interior of the container body through a separate opening from a dispensing opening associated with the container. When used in conjunction with a cap on the opening, the cap may have a hole for allowing a user to access the movable portion of the cartridge such that the movable member may be manually or otherwise activated to dispense the fluid material from the cartridge body into the interior of the container body. Preferably, the cartridge is removable and replaceable with another cartridge when the application dictates that this desirable.
The present invention further contemplates a method of aseptically dispensing a first component fluid and mixing the first component fluid with at least one other component fluid in a container having at least one opening. The method generally includes containing the first component fluid in an aseptically sealed cartridge having a movable member sealed therein and retaining the cartridge in the opening of the container. The movable member is then actuated to dispense the first component fluid into the container and the first and second component fluid are then mixed within the container.
Various additional features, objectives and advantages of the invention will become more readily apparent to those of ordinary skill in the art upon review of the following detailed description of the preferred embodiments, taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a fragmented, elevational view of a container constructed in accordance with the invention and showing portions thereof in axial cross section to show details of the dispensing cartridge of this invention;
FIG. 2
is a fragmented cross sectional view of a similar container, but showing an alternative cartridge and container configuration in accordance with the invention;
FIG. 3
is an exploded view of the container and cartridge assembly shown in
FIG. 2
; and
FIGS. 4A and 4B
are views similar to
FIG. 2
, but showing the manner of operation associated with this second embodiment of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1
illustrates a first embodiment of the invention in the form of a container
10
. Container
10
includes a container body
12
fragmented at a lower end for illustrative purposes only. Container body
12
may comprise, for example, a flexible plastic bag, as shown, or may be sized, configured and shaped in any other manner and constructed from other materials having properties suitable for the intended application. Container body
12
includes an upper end
14
which is a portion of the bag that has been sealed or adhesively secured to a rigid plastic portion
16
including a spout or neck
18
. Neck
18
includes an opening
20
for accessing an interior
22
of container body or bag
12
. Neck
18
includes external threads
24
which engage internal threads
26
associated with a cap
28
. This allows cap
28
to be selectively threaded onto and unthreaded from neck
18
to access the interior of container body
12
and to dispense contents thereof.
In accordance with a preferred aspect of the invention, an aseptic dispensing cartridge
30
is received within opening
20
and includes a cartridge body
32
having a first end
34
and a second end
36
, respectively shown as the lower and upper ends of cartridge body
32
. It will be understood that any reference to terms of orientation, such as “upper” and “lower” are not to be construed in a limiting sense as the various elements associated with the invention may be utilized in various orientations other than those shown. Cartridge body
32
includes an interior
38
adapted to receive a component fluid, such as a concentrate, to be subsequently mixed with another component fluid contained within interior
22
of container body
12
. The interior
38
of cartridge body
32
includes a movable member
40
mounted for reciprocation and preferably having a sharpened end
40
a.
Movable member
40
is shown as a separate element but may be connected with cartridge body
32
. The movable member of this invention may also take on many other configurations and may be integrally formed with the cartridge body. First end
34
includes a seal
42
, which may be an induction seal or another type of seal that is adhesively secured, welded or otherwise securely affixed to first end
34
of container body
32
. In accordance with the preferred embodiment, this aseptically seals any contents within interior
38
until seal
42
is broken or opened. Second end
36
of cartridge body
32
includes a movable portion
44
which may be in the preferred form of a generally bellows-shaped configuration, as shown, or may take any other appropriate form facilitating movement of member
40
. A cap
46
is disposed on top of movable portion
44
and simply provides a larger, more rigid contact surface for a user, as described further below. A cap
48
at the opposite end may be used to help secure and retain seal
42
in place. Cap
48
may be secured, for example, by threads
50
and includes a hole
52
for exposing at least a central portion of seal
42
.
Fins
54
extend radially outward from movable member
40
and serve to center and stabilize movable member
40
for reciprocating motion within interior
38
. It will be appreciated that other types of positioning structure may be provided on cartridge body
32
or movable member
40
, or both, for facilitating this positioning and stabilizing function, if deemed necessary.
In operation, and as one example, a user may remove cap
28
and if cartridge
30
is in place, remove cartridge
30
. This allows water or another first component fluid to be introduced into interior
22
of container body
12
. Cartridge
30
may then be reinserted through opening
20
such that flange
56
rests on the top edge
18
a
of neck
18
. Cap
46
may then be manually depressed by the user to move bellows-shaped portion
44
and movable member
40
downward such that sharpened end
40
a
pierces through seal
42
. This dispenses the component fluid, such as a concentrate, from interior
38
into interior
22
in an aseptic manner allowing mixing of the two component fluids within interior
22
. It will be appreciated that the component fluid within interior
38
of cartridge
30
is not exposed to the ambient environment during this process and any potential contaminants from the ambient environment are also not introduced into interiors
22
or
38
during this mixing process.
Another embodiment of the invention is shown in
FIGS. 2
,
3
and
4
A-B. In these drawings, a container
60
incorporating principles of the present invention has also been shown in an enlarged and fragmented manner for clarity. Container
60
includes a container body
62
which may be formed from any of numerous materials, but is shown for illustrative purposes to be formed of a plastic, such as polyethylene. Container body
62
includes an interior
64
and further includes a neck
66
having an opening
67
communicating with interior
64
. A cap
68
is received on neck
66
and securely affixed to external threads
70
on neck
66
and internal threads
72
on cap
68
.
A cartridge
80
, constructed in accordance with the inventive principles, is inserted into opening
67
of neck
66
so that it may communicate with interior
64
during use. Cartridge
80
includes a cartridge body
82
having a first end
84
and a second end
86
defining an interior
88
therebetween. A movable member
90
, in the form of a reciprocating rod, is mounted within interior
88
and includes a sharpened or converging end
90
a.
First end
84
of cartridge body
82
defines a sealed, but frangible or breakable end
92
. A movable portion
94
, in the form of a bellows-shaped cap
94
connected with cartridge body
82
is affixed at second end
86
. A flat head
95
of movable member
90
is received within an uppermost portion of the bellows configuration. A flange
96
extends integrally from cartridge body
82
. The bellows-shaped movable portion or cap
94
is affixed to flange
96
by threads
98
engaging threads
100
of flange
96
.
As illustrated best in
FIGS. 4A and 4B
, a user may access and depress bellows-shaped portion
94
by inserting their finger through a hole
102
in the upper surface of cap
68
. By depressing the bellows-shaped cap
94
, movable member
90
is pushed through the sealed end
92
thereby breaking or otherwise opening this sealed end to allow fluid to dispense from the interior
88
of cartridge body
82
to the interior
64
of the container body
62
. As shown in
FIG. 4B
, upon release of pressure from the bellows shaped portion
94
, movable member
90
preferably springs back upwardly due to forces of the bellows-shaped portion
94
thereby removing end
92
from the opening previously created and allowing better flow of fluid from interior
88
.
As one additional alternative, the invention may include a heat activated, releasable seal structure. This may be substituted for the seal structures shown in the drawings and may open the seal at a predetermined temperature, such as a temperature approaching a conventional autoclave temperature of 120° C. For example, an adhesive may be used on the induction seal that releases at this temperature to break the sealed connection between the cartridge body and the seal structure.
From the foregoing description, it will be appreciated that the present invention provides a container in the form of a cartridge and mixing and/or dispensing system that provides storage, shipping and mixing of toxic or otherwise potentially harmful fluid materials in a convenient and aseptic manner. In addition to the advantageous aseptic properties of the cartridge associated with this invention, the invention significantly eases the shipping of large amounts of toxic or potentially harmful fluid materials. With the cartridge of the present invention, shipment of hazardous materials, infectious materials, etc., may be made in smaller concentrated quantities and then easily mixed at the point of use in accordance with the invention. The use of smaller hazardous material containers reduces the likelihood of leakage since the closures associated with these containers are smaller and more reliable.
While the present invention has been illustrated by a detailed description of a preferred embodiment, it is not the intention of the applicants to restrict or in any way limit the scope of the appended claims to such detail. Various features of the invention may be combined in various unique and advantageous manners to achieve objectives of the invention. Additional advantages and modifications will readily appear to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details, representative apparatus and method, and illustrative example shown and described. Accordingly, departures may be made from such details without departing from the spirit or scope of applicant's general inventive concept.
Claims
- 1. A cartridge for holding and dispensing a fluid material in an aseptic manner, the cartridge comprising:a cartridge body having an interior for holding the fluid material and having first and second ends, a seal affixed to the first end of said cartridge body, a movable portion sealed to the second end of said cartridge body said seal and movable portion collectively aseptically sealing said cartridge interior, a movable member disposed within the interior of said cartridge body between the first and second ends, wherein said movable member may be moved in response to movement of said movable portion at the second end such that said movable member breaks the seal and the fluid material is thereby dispensed from the cartridge interior via the first end, and a connector portion operatively connected with said cartridge body, wherein said connector portion is adapted to be affixed adjacent a cap of a container and adapted to be removably and replaceably received in an open end of the container such that the fluid material may be dispensed into the container.
- 2. The cartridge of claim 1, wherein the movable member further comprises a piercing member mounted for linear movement within the cartridge body and adapted to pierce through the seal when acted on by the movable portion.
- 3. The cartridge of claim 1, wherein the movable portion of said cartridge body further comprises a bellows-shaped portion adapted to be manually depressed by a user to move the movable member toward the seal.
- 4. The cartridge of claim 1, wherein said seal further comprises an integral part of said cartridge body and said movable portion further comprises a separately affixable portion, wherein the fluid material may be introduced into said cartridge body at the second end and the separately affixable, movable portion may then be affixed to retain the fluid material therein.
- 5. The cartridge of claim 1 further comprising a positioning portion on the movable member for positioning and stabilizing the movable member within said cartridge body.
- 6. The cartridge of claim 1 wherein said connector portion further comprises a flange configured to engage the container.
- 7. A container for holding a fluid material comprising at least two separate component fluids, comprising:a container body having an interior for holding the component fluids and having an opening, a cartridge body having first and second ends and received by the opening in said container body for initially holding and dispensing a first of said component fluids in an aseptic manner, a seal affixed to the first end of said cartridge body, a movable portion sealed to the second end of said cartridge body, a movable member disposed within said cartridge body and aseptically sealed between the first and second ends, wherein said movable member may be moved in response to movement of said movable portion at the second end such that said movable member breaks the seal and the first component fluid is thereby dispensed from the first end, and a connector portion operatively connected with said cartridge body, wherein said connector portion is engageable with the container body and is configured to be removably and replaceably received in the opening of said container body such that the fluid material may be dispensed into the interior of the container body.
- 8. The container of claim 7, wherein the movable member further comprises a piercing member mounted for reciprocation within the cartridge body and adapted to pierce through the seal when acted on by the movable portion.
- 9. The container of claim 7, wherein the movable portion of said cartridge body further comprises a bellows-shaped portion adapted to be manually depressed by a user to move the movable member toward the seal.
- 10. The container of claim 7, wherein said seal further comprises an integral part of said cartridge body and said movable portion further comprises a separately affixable portion, wherein the first component fluid may be introduced into said cartridge body at the second end and the separately affixable, movable portion may then be affixed to retain the first component fluid therein.
- 11. The container of claim 7 further comprising a positioning portion on the movable member for positioning and stabilizing the movable member within said cartridge body.
- 12. The container of claim 10 wherein said connector portion further comprises a flange configured to engage the container body.
- 13. The container of claim 12, wherein the container further includes a neck and the opening is in said neck, and further comprising a cap engageable with said neck and covering said opening.
- 14. The container of claim 13, wherein said cap includes a hole for accessing the movable portion of said cartridge body.
- 15. A method of aseptically dispensing a first component fluid and mixing the first component fluid with a second component fluid in a container having at least one opening, the method comprising:containing the first component fluid in an aseptically sealed cartridge having a movable member sealed therein, removably and replaceably retaining the cartridge in the opening of said container, actuating the movable member to dispense the first component fluid into the container, and mixing the first component fluid with the second component fluid in the container.
- 16. The method of claim 15, wherein actuating the movable member further comprises breaking a seal on the cartridge using the movable member.
- 17. The method of claim 16, wherein breaking the seal further comprises piercing through the seal with a sharpened end of the movable member.
- 18. The method of claim 15, wherein actuating the movable member further comprises depressing an outside portion of the cartridge.
- 19. The method of claim 15, wherein removably retaining the cartridge further comprises engaging a flange of the cartridge with a neck surrounding the opening of the container.
- 20. A cartridge for holding and dispensing a fluid material in an aseptic manner, the cartridge comprising:a cartridge body having an interior for holding the fluid material and having first and second ends, a seal affixed to the first end of said cartridge body, said seal further comprising a separate seal affixed to the first end of said cartridge body wherein the fluid material may be introduced into said cartridge body through the first end and the separate seal may then be affixed to retain the fluid material therein, and wherein said seal is configured to open at a predetermined temperature, a movable portion sealed to the second end of said cartridge body, said seal and movable portion collectively aseptically sealing said cartridge interior, a movable member disposed within the interior of said cartridge body between the first and second ends, wherein said movable member may be moved in response to movement of said movable portion at the second end such that said movable member breaks the seal and the fluid material is thereby dispensed from the cartridge interior via the first end.
- 21. A container for holding a fluid material comprising at least two separate component fluids, comprising:a container body for the component fluids and having an opening, a cartridge body having first and second ends and received by the opening in said container body for initially holding and dispensing a first of said component fluids in an aseptic manner, a seal affixed to the first end of said cartridge body, said seal further comprising a separate seal affixed to the first end of said cartridge body wherein the first component fluid may be introduced into said cartridge body through the first end and the seal may then be affixed to retain the first component fluid therein, and wherein said seal is configured to open at a predetermined temperature, a movable portion sealed to the second end of said cartridge body, a movable member disposed within said cartridge body and aseptically sealed between the first and second ends, wherein said movable member may be moved in response to movement of said movable portion at the second end such that said movable member breaks the seal and the first component fluid is thereby dispensed from the first end.
US Referenced Citations (10)