Patent US4657486A successfully refreshed from Google Patents.
US4657486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable infusion device
Assignee: 210 BUILDING INVESTMENTS Ltd
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Filing: 1985-06-17
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Granted: 1987-04-14
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Expires: 2005-06-17
Abstract
Abstract A portable infusion device for injecting medicinal fluids into a human or animal body by means of a positive pressure pump that is automatically operated at selected time intervals to inject accurate amounts of fluid medicine into the body.
Inventors
- 👤 Julius E. Stempfle
- 👤 Roger D. Partipilo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:55
CPC Classifications
F; F04; F04B; F04B13/00; A; A61; A61M; A61M5/00; A61M5/14; A61M5/142; F04B49/00; F04B49/02; F04B49/20; A61M5/14212; A61M5/14228; A61M5/14232
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
160 words
An infusion device for infusing a fluid medicine into a body and to be carried thereby comprising; a case having mounting means thereon; reservoir means disposed in said mounting means for carrying the fluid medicine, said reservoir means having cap means closing one end thereof and said cap means having bacteria filter means provided therein, tubing means connected to said reservoir means; pump means provided by said case and having a portion of said tubing means disposed therein; motor means for operating said pump means; and control circuit means connected to motor means for operating said motor means including signal generating means that generate signals according to the rotations of said motor means, programmable means for receiving said signals and for stopping operation of said motor means after a selected number of rotations of said motor means, means for selecting the selected number of rotations of said motor means, and means for automatically operating said motor means at selected times.
Claim 2
Dependent Claim
160 words
An infusion device for infusing a fluid medicine into a body and to be carried thereby comprising; a case having mounting means thereon; reservoir means disposed in said mounting means for carrying the fluid medicine, said reservoir means having cap means closing one end thereof and said cap means having bacteria filter means provided therein, tubing means connected to said reservoir means; pump means provided by said case and having a portion of said tubing means disposed therein; motor means for operating said pump means; and control circuit means connected to motor means for operating said motor means including signal generating means that generate signals according to the rotations of said motor means, programmable means for receiving said signals and for stopping operation of said motor means after a selected number of rotations of said motor means, means for selecting the selected number of rotations of said motor means, and means for automatically operating said motor means at selected times.
Claim 3
Dependent Claim
24 words
An infusion device according to claim 1 wherein said tubing means includes an adapter means for receiving syringe means to refill said reservoir means.
Claim 4
Dependent Claim
21 words
An infusion device according to claim 1 wherein locking means are provided for locking said reservoir means in said mounting means.
Claim 5
Dependent Claim
30 words
An infusion device according to claim 1 wherein said reservoir means has plunger means movable therealong including an elastomer sealing means sealingly engaging an inside surface of said reservoir means.
Claim 6
Dependent Claim
62 words
An infusion device according to claim 4 wherein said reservoir means includes a chamber at an inner end which is provided with an orifice enabling said reservoir and said chamber to be in communication; said elastomer sealing means having a thin-walled extension for engagement with said orfice when said plunger means reaches said chamber thereby sealing said chamber from said reservoir means.
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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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |