Patent US5368588A successfully refreshed from Google Patents.
US5368588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parenteral fluid medication reservoir pump
Assignee: Individual
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Filing: 1993-02-26
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Granted: 1994-11-29
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Expires: 2013-02-26
Abstract
Abstract A parenteral fluid medication pump comprises a reservoir filled with fluid medication. The medication is continuously discharged over an extended period into the patient. The continuous discharge is obtained by a shrink polymer wall for the reservoir which is powered by the relaxation of forces which are internal to the shrink polymer. In the principal embodiment the device pumps from a reservoir which is surgically implanted and internal to the patient. A reservoir depletion warning for surgically implanted pumps which creates a physiological indicator is also taught. In other embodiments the device is capable of magnetic, external-triggered disablement.
Inventors
- 👤 David S. Bettinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:46
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K9/0024; A61M; A61M31/00; A61M31/002; A61M5/00; A61M5/14; A61M5/142; A61M5/145; A61M5/148; A61M5/152
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
82 words
A disposable parenteral fluid medication pump comprising an elongated reservoir having an enclosing wall; said reservoir having at least one closable outlet through which a flowable fluid is induced to administer a medication; and wherein said wall is made of shrink polymer material which when activated results in a reduction in the interior volume of said reservoir forcing said flowable fluid through said outlet; and wherein said shrink polymer material is activated by heat, aging, light, chemical agent, oxygen, or a combination.
Claim 2
Dependent Claim
82 words
A disposable parenteral fluid medication pump comprising an elongated reservoir having an enclosing wall; said reservoir having at least one closable outlet through which a flowable fluid is induced to administer a medication; and wherein said wall is made of shrink polymer material which when activated results in a reduction in the interior volume of said reservoir forcing said flowable fluid through said outlet; and wherein said shrink polymer material is activated by heat, aging, light, chemical agent, oxygen, or a combination.
Claim 3
Dependent Claim
35 words
The pump of claim 1 wherein the pump is made of age activated, shrink polymers which are bio-compatible with surgical implantation in a patient for such periods as are required for complete dispensing of medication.
Claim 4
Dependent Claim
33 words
The pump of claim 1 wherein the reservoir outlet is mounted in communication with a means for continuous administering medication by attaching a hollow tube to said outlet for site-targeting and multi-drug sequencing.
Claim 5
Dependent Claim
20 words
The implant pump of claim 2 wherein said pump has a disabling device comprising a plug having a magnetic core.
Claim 6
Dependent Claim
23 words
The pump of claim 1 wherein the reservoir is charged by the insertion of a container, prefilled with the medication to be administered.
Claim 7
Dependent Claim
24 words
The pump of claim 1 wherein the opposing internal walls in the post dispensing state are adjacent and parallel to minimize residual undispensed charge.
Claim 8
Dependent Claim
91 words
A disposable parenteral fluid medication pump comprising an elongated reservoir of small diameter having an enclosing wall; said reservoir having at least one closable outlet through which a plurality of medications are induced in a linear sequence to achieve a preprogrammed regimen; and wherein said reservoir wall is made of shrink polymer material which when activated results in a reduction in the interior volume of said reservoir forcing said medications through said outlet; and wherein said shrink polymer material is activated by heat, aging, light, chemical agent, oxygen, or a combination.
Claim 9
Dependent Claim
91 words
A disposable parenteral fluid medication pump comprising an elongated reservoir of small diameter having an enclosing wall; said reservoir having at least one closable outlet through which a plurality of medications are induced in a linear sequence to achieve a preprogrammed regimen; and wherein said reservoir wall is made of shrink polymer material which when activated results in a reduction in the interior volume of said reservoir forcing said medications through said outlet; and wherein said shrink polymer material is activated by heat, aging, light, chemical agent, oxygen, or a combination.
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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) | 1997-11-28 | 1998-05-30 | 1998-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-28 | 2002-05-30 | 2002-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-28 | 2006-05-30 | 2006-11-29 | $7700.00 | Window Closed / Lapsed |