US4898582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable infusion device assembly
Assignee: PharMetrix Corp
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Filing: 1988-08-09
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Granted: 1990-02-06
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Expires: 2008-08-09
Abstract
Abstract A portable infusion device assembly, having two side-by-side compartments, the first containing the drug or agent to be infused and an osmotic pump, and the second containing the driving liquid for the pump. The two chambers are separated during storage by a barrier. When the barrier is ruptured, the driving fluid is carried by means of a wick to the osmotic pump. The drug is then forced out of the device by the pressure developed by the osmotic pump. The assembly is characterized by a very flat profile, and is light, comfortable, and inconspicuous in use.
Inventors
- 👤 Rolf A. Faste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:03
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/142; A61M5/145; A61M2005/14513; A61M5/14244; A61M5/14248; Y; Y10; Y10S; Y10S128/00; Y10S128/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
118 words
A portable infusion device assembly, comprising; (a) a housing, defining first and second compartments disposed in side-by side relationship to one another, (b) an osmotic pump, disposed within said first compartment, (c) a driving liquid for said pump disposed within said second compartment, (d) wick means, disposed within said housing, in liquid transferring relationship between said first and second compartments, (e) a barrier disposed between said wick means and said driving liquid, and separating said driving liquid from said wick, and (f) means integral with said housing or said barrier for rupturing said barrier so that upon rupture of said barrier, said driving liquid will be transferred by said wick from said second compartment to said first compartment.
Claim 2
Dependent Claim
118 words
A portable infusion device assembly, comprising; (a) a housing, defining first and second compartments disposed in side-by side relationship to one another, (b) an osmotic pump, disposed within said first compartment, (c) a driving liquid for said pump disposed within said second compartment, (d) wick means, disposed within said housing, in liquid transferring relationship between said first and second compartments, (e) a barrier disposed between said wick means and said driving liquid, and separating said driving liquid from said wick, and (f) means integral with said housing or said barrier for rupturing said barrier so that upon rupture of said barrier, said driving liquid will be transferred by said wick from said second compartment to said first compartment.
Claim 3
Dependent Claim
118 words
A portable infusion device, comprising; (a) a flexible housing, defining first and second compartments disposed in side-by side relationship to one another, (b) an osmotic pump, disposed within said first compartment, (c) a driving liquid for said pump disposed within said second compartment, (d) wick means, disposed within said housing, in liquid transferring relationship between said first and second compartments, (e) a barrier disposed between said wick means and said driving liquid, and separating said driving liquid from said wick, and (f) means integral with said housing or said barrier for rupturing said barrier so that upon rupture of said barrier, said driving liquid will be transferred by said wick from said second compartment to said first compartment.
Claim 4
Dependent Claim
118 words
A portable infusion device, comprising; (a) a flexible housing, defining first and second compartments disposed in side-by side relationship to one another, (b) an osmotic pump, disposed within said first compartment, (c) a driving liquid for said pump disposed within said second compartment, (d) wick means, disposed within said housing, in liquid transferring relationship between said first and second compartments, (e) a barrier disposed between said wick means and said driving liquid, and separating said driving liquid from said wick, and (f) means integral with said housing or said barrier for rupturing said barrier so that upon rupture of said barrier, said driving liquid will be transferred by said wick from said second compartment to said first compartment.
Claim 5
Dependent Claim
81 words
A housing for a portable osmotic device, comprising; (a) a baseplate, (b) an upper portion designed in such a manner that side-by-side compartments are created when said upper portion is sealed to said baseplate around its perimeter, (c) a support means within said first compartment for holding an osmotic pump, (d) a wick means, disposed within said housing, in liquid transferring relationship between said first and second compartments and (e) sealing means for isolation said first compartment from said second compartment.
Claim 6
Dependent Claim
81 words
A housing for a portable osmotic device, comprising; (a) a baseplate, (b) an upper portion designed in such a manner that side-by-side compartments are created when said upper portion is sealed to said baseplate around its perimeter, (c) a support means within said first compartment for holding an osmotic pump, (d) a wick means, disposed within said housing, in liquid transferring relationship between said first and second compartments and (e) sealing means for isolation said first compartment from said second compartment.
Claim 7
Dependent Claim
10 words
The housing of claim 3, wherein said baseplate is flexible.
Claim 8
Dependent Claim
13 words
The housing of claim 3, where said upper portion is of flexible construction.
Claim 9
Dependent Claim
13 words
The housing of claim 3, wherein said compartment surfaces are of flexible construction.
Claim 10
Dependent Claim
45 words
The housing of claim 3, wherein said support means and said sealing means comprise a single internal support member disposed generally parallel to said baseplate, said single internal support being sealed to said raised portion around its perimeter and between said first and second compartments.
Claim 11
Independent Claim
137 words
A method of infusing a patient, comprising connecting said patient to a portable osmotic infusion device, said device comprising: (a) a housing, defining first and second compartments disposed in side-by-side relationship to one another, (b) an osmotic pump, disposed within said first compartment, (c) a driving liquid for said pump disposed within said second compartment, (d) wick means, disposed within said housing, in liquid transferring relationship between said first and second compartments, (e) a barrier disposed between said wick means and said driving liquid, and separating said driving liquid from said wick, (f) means integral with said housing or said barrier for rupturing said barrier so that upon rupture of said barrier, said driving liquid will be transferred by said wick from said second compartment to said first compartment, (g) activating said device by rupturing said barrier.
Claim 12
Independent Claim
137 words
A method of infusing a patient, comprising connecting said patient to a portable osmotic infusion device, said device comprising: (a) a housing, defining first and second compartments disposed in side-by-side relationship to one another, (b) an osmotic pump, disposed within said first compartment, (c) a driving liquid for said pump disposed within said second compartment, (d) wick means, disposed within said housing, in liquid transferring relationship between said first and second compartments, (e) a barrier disposed between said wick means and said driving liquid, and separating said driving liquid from said wick, (f) means integral with said housing or said barrier for rupturing said barrier so that upon rupture of said barrier, said driving liquid will be transferred by said wick from said second compartment to said first compartment, (g) activating said device by rupturing said barrier.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |