Patent US4950245A successfully refreshed from Google Patents.
US4950245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple fluid cartridge and pump
Assignee: I Flow Corp
•
Filing: 1988-07-08
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Granted: 1990-08-21
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Expires: 2008-07-08
Abstract
Abstract A pump housing which contains a plurality of linear peristaltic pumps and receives a fluid source cartridge. The cartridge is provided with retaining knobs for engaging retaining holes in the front end of the pump housing. A cartridge further contains a tab at its rear end for engaging a locking mechanism in the pump housing. The cartridge contains linear fluid conduits which align with the linear peristaltic pumps for pumping fluid from the fluid source pouches within the cartridge. Each pump is individually controlled by a programmable controller within the pump.
Inventors
- 👤 Eric W. Brown
- 👤 Charles Kienholz
- 👤 Steve Busak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:20
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/142; A61M5/14212; A61M5/14228; A61M2205/00; A61M2205/12; A61M5/14244; A61M5/168; A61M5/16804; A61M5/16827; Y; Y10; Y10S; Y10S128/00; Y10S128/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
59 words
A multiple fluid source cartridge comprising; a rigid housing; a plurality of fluid containing compartments located within said housing; a linear conduit connected to each one of said fluid containing compartments; a plurality of plunger members superposed on each of said linear conduits; and an output port accessible from outside said housing for each of said linear fluid conduits.
Claim 2
Dependent Claim
59 words
A multiple fluid source cartridge comprising; a rigid housing; a plurality of fluid containing compartments located within said housing; a linear conduit connected to each one of said fluid containing compartments; a plurality of plunger members superposed on each of said linear conduits; and an output port accessible from outside said housing for each of said linear fluid conduits.
Claim 3
Dependent Claim
17 words
The cartride of claim 1 further comprising a detachable module for housing each plurality of plunger members.
Claim 4
Dependent Claim
21 words
The cartridge of claim 1 wherein said output port for each of said linear fluid conduits connects to a multilumen catheter.
Claim 5
Dependent Claim
13 words
The cartridge of claim 1 wherein said fluid containing compartments comprise flexible pouches.
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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) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |