US5616127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable liquid infusion device
Assignee: Individual
•
Filing: 1994-11-14
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Granted: 1997-04-01
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Expires: 2014-11-14
Abstract
Abstract This invention is directed to a temperature activated infusion device for delivering a specific quantity of medication to a recipient patent. The delivery is accomplished by the use of a sealed pouch or container of an temperature expandable fluid which applies pressure to a adjacent second pouch or container of liquid medication. A medication delivery pressure regulator and fluid metering valve associated with the output of the liquid medication from the pouch or container insure proper pressure and volume of medication to the recipient patient.
Inventors
- 👤 Kevin Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:55
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/168; A61M5/16877; A61M5/16881; A61M5/142; A61M5/145; A61M5/148; A61M5/1483; A61M5/141
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
172 words
A temperature activated medication infusion pump attachable to an infused medication recipient comprising: means for attaching said infusion pump to said a patient; a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; a pressure control means associated with said second container for controlling the pressure of said liquid medication flowing from said second container through said tube, said pressure control means connected to the distal end of said tube; valve means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
Claim 2
Dependent Claim
172 words
A temperature activated medication infusion pump attachable to an infused medication recipient comprising: means for attaching said infusion pump to said a patient; a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; a pressure control means associated with said second container for controlling the pressure of said liquid medication flowing from said second container through said tube, said pressure control means connected to the distal end of said tube; valve means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
Claim 3
Dependent Claim
35 words
The invention as defined in claim 1 wherein said means for attaching said infusion pump to said recipient comprises a pouch for containing said first and second containers attachable to said patient by a belt.
Claim 4
Dependent Claim
27 words
The invention as defined in claim 2 wherein at least one surface of said pouch adjacent to said first container is formed of a heat transfer medium.
Claim 5
Dependent Claim
14 words
The invention as defined in claim 3 wherein said heat transfer medium is metal.
Claim 6
Dependent Claim
23 words
The invention as defined in claim 2 wherein said first and second containers are fixedly secured to each other around their outer peripheries.
Claim 7
Dependent Claim
23 words
The invention as defined in claim 2 wherein said first and second containers are removably secured to each other around their outer peripheries.
Claim 8
Dependent Claim
17 words
The invention as defined in claim 1 wherein said pouch is constructed of a material substantially inflexible.
Claim 9
Dependent Claim
19 words
The invention as defined in claim 1 wherein said first and second containers are fabricated from a flexible material.
Claim 10
Dependent Claim
13 words
The invention as defined in claim 8 wherein said flexible material is plastic.
Claim 11
Dependent Claim
19 words
The invention as defined in claim 1 wherein said range of temperatures is from 65 to 100 degrees F.
Claim 12
Dependent Claim
22 words
The invention as defined in claim 1 wherein said expandable fluid consists of one of the following Acetakdehyde, Cyclobutane, 22Dimethylpropane or EthyleneAmine.
Claim 13
Dependent Claim
16 words
The invention as defined in claim 1 wherein said pressure control means is a pressure regulator.
Claim 14
Dependent Claim
63 words
The invention as defined in claim 1 wherein said pressure control means is resilient open cell foam inserted between said first and second container in series between said hollow portion of said second container and said tube whereby as the pressure increases in said first container relative to said second container said flow through said tube is reduced by compressing said foam thereby.
Claim 15
Dependent Claim
17 words
The invention as defined in claim 1 wherein said hollow portion of said first container is sealed.
Claim 16
Dependent Claim
18 words
The invention as defined in claim 1 wherein said valve means comprises a plurality of different volume settings.
Claim 17
Dependent Claim
19 words
The invention as defined in claim 1 wherein said volume control means comprises at least three different volume settings.
Claim 18
Dependent Claim
41 words
The invention as defined in claim 1 wherein said pressure control means comprises a bellows actuated flow control whereby as the pressure in the hollow portion of said first container increases said flow to said means for infusing said liquid decreases.
Claim 19
Dependent Claim
22 words
The invention as defined in claim 1 wherein at least one surface of said pouch adjacent of said first container is metallic.
Claim 20
Dependent Claim
14 words
The invention as defined in claim 1 wherein said valve means is manually operated.
Claim 21
Dependent Claim
137 words
A temperature activated medication infusion pump comprising: a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; pressure control means for controlling the pressure of said liquid medication flowing from said second container through said tube; means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
Claim 22
Dependent Claim
137 words
A temperature activated medication infusion pump comprising: a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; pressure control means for controlling the pressure of said liquid medication flowing from said second container through said tube; means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
Claim 23
Dependent Claim
118 words
A temperature activated medication infusion pump comprising: a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
Claim 24
Dependent Claim
118 words
A temperature activated medication infusion pump comprising: a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; means for metering the volume of said liquid medication flowing through said tube; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
Claim 25
Dependent Claim
105 words
A temperature activated medication infusion pump comprising: a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
Claim 26
Dependent Claim
105 words
A temperature activated medication infusion pump comprising: a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; means for attaching said first container to said second container, whereby when said first container expands pressure is applied to said second container and the liquid medication therein; a tube communicating with the hollow portion of said second container with a distal end extending therefrom; and means for attaching a device for infusing said liquid mediation from said tube into said patent.
Claim 27
Dependent Claim
85 words
A temperature activated medication infusion pump comprising: a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; and a tube communicating with the hollow portion of said second container with a distal end extending therefrom, whereby when said first container expands pressure is applied to said second container and the liquid medication therein forcing liquid medication from said tube.
Claim 28
Dependent Claim
85 words
A temperature activated medication infusion pump comprising: a first container having a central hollow portion containing a temperature expandable fluid, said expandable fluid being expandable through a selected range of temperatures; a second container having a hollow central portion containing a liquid medication; and a tube communicating with the hollow portion of said second container with a distal end extending therefrom, whereby when said first container expands pressure is applied to said second container and the liquid medication therein forcing liquid medication from said tube.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-31 | 2000-09-30 | 2001-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-31 | 2004-09-30 | 2005-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-31 | 2008-09-30 | 2009-04-01 | $7700.00 | Window Closed / Lapsed |