US4526515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pumping assembly including a prepackaged fluid circuit module
Assignee: Baxter International Inc
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Filing: 1982-09-27
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Granted: 1985-07-02
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Expires: 2002-09-27
Abstract
Abstract A fluid pumping assembly includes a prepackaged, self-contained fluid circuit module which is selectively movable by an operator into and out of operative association with one or more pump rotors of an associated apparatus. The module includes a housing which supports two or more flexible conduits, which together define a prearranged fluid circuit. Portions of the flexible fluid conduits are outwardly disposed from the housing in upright, freestanding positions, even when the module is out of operative association with the pump rotors. The upright portions are purposely arranged relative to each other to facilitate only a particular operative relationship between the fluid circuit and the pump rotors when the module is subsequently moved into operative association therewith.
Inventors
- 👤 James H. DeVries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:34
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3693; A61M1/3621; A61M1/3622; A61M1/36224; A61M1/36225; A61M1/36226; A61M1/362262; A61M1/362263; A61M1/362264; A61M1/3639; A61M1/3641; A61M1/3696; A61M2205/00; A61M2205/12; A61M2205/125; A61M2205/33; A61M2205/3306; A61M2205/331
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
219 words
A fluid pumping assembly comprising an apparatus including at last two spaced apart pump rotors, and a prepackaged, self-contained fluid circuit module including housing means including means for removably positioning said housing means on said apparatus in a predetermined relationship with respect to said pump rotors, flexible first conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said first conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and disposed to interfit with a selected one of said pump rotors when said housing means is positioned in said predetermined relationship therewith, and flexible second conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said second conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and disposed to interfit with the other one of said pump rotors when said housing means is positioned in said predetermined relationship therewith, whereby it is assured that each of said first and second conduit means will interfit only with the correct one of said pump rotors when said fluid circuit module is positioned on said apparatus.
Claim 2
Dependent Claim
219 words
A fluid pumping assembly comprising an apparatus including at last two spaced apart pump rotors, and a prepackaged, self-contained fluid circuit module including housing means including means for removably positioning said housing means on said apparatus in a predetermined relationship with respect to said pump rotors, flexible first conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said first conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and disposed to interfit with a selected one of said pump rotors when said housing means is positioned in said predetermined relationship therewith, and flexible second conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said second conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and disposed to interfit with the other one of said pump rotors when said housing means is positioned in said predetermined relationship therewith, whereby it is assured that each of said first and second conduit means will interfit only with the correct one of said pump rotors when said fluid circuit module is positioned on said apparatus.
Claim 3
Dependent Claim
84 words
A fluid pumping assembly according to claim 1 wherein said fluid circuit module further includes flexible first auxiliary conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said first auxiliary conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and adjacently disposed concentrically with said loop portion of said first conduit means to interfit with said one peristaltic pump rotor.
Claim 4
Dependent Claim
217 words
A fluid pumping assembly comprising an apparatus including at least one pump rotor, a prepackaged, self-contained fluid circuit module including housing means including means for removably positioning said housing means on said apparatus in a predetermined relationship with respect to said peristaltic pump rotor, flexible first conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said first conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and disposed to interfit with said pump rotor when said housing means is positioned in said predetermined relationship therewith, and flexible first auxiliary conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said first auxiliary conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and adjacently disposed concentrically with said loop portion of said first conduit means to also interfit with said pump rotor when said first conduit means is interfitted therewith, whereby it is assured that each of said first and first auxiliary conduit means will simultaneously interfit with said pump rotor when said fluid circuit module is positioned on said apparatus.
Claim 5
Dependent Claim
217 words
A fluid pumping assembly comprising an apparatus including at least one pump rotor, a prepackaged, self-contained fluid circuit module including housing means including means for removably positioning said housing means on said apparatus in a predetermined relationship with respect to said peristaltic pump rotor, flexible first conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said first conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and disposed to interfit with said pump rotor when said housing means is positioned in said predetermined relationship therewith, and flexible first auxiliary conduit means extending through said housing means and defining a fluid pathway adapted for communication with a source of fluid, said first auxiliary conduit means including a portion extending from and into said housing means to form a loop portion exterior of said housing means and adjacently disposed concentrically with said loop portion of said first conduit means to also interfit with said pump rotor when said first conduit means is interfitted therewith, whereby it is assured that each of said first and first auxiliary conduit means will simultaneously interfit with said pump rotor when said fluid circuit module is positioned on said apparatus.
Claim 6
Dependent Claim
45 words
A fluid pumping assembly according to claim 1 or 2 or 3 wherein each of said loop portions is resiliently biased toward an upright freestanding position when said module is out of association with said apparatus to accommodate said interfit with said respective pump rotor.
Claim 7
Dependent Claim
79 words
A fluid pumping assembly according to claim 1 or 2 wherein said apparatus further includes sensing means positioned adjacent to said pump rotors, and wherein said fluid circuit module includes at least one monitoring device carried by said housing means in flow communication with at least one of said conduit means, and wherein said housing positioning means is further operative for positioning said housing means on said apparatus with said monitoring device in operative contact with said sensing means.
Claim 8
Dependent Claim
41 words
A fluid pumping assembly according to claim 5 wherein each of said loop portions is resiliently biased toward an upright freestanding position when said module is out of association with said apparatus to accommodate said interfit with said respective pump rotor.
Claim 9
Dependent Claim
43 words
A fluid pumping assembly according to claim 1 or 2 wherein said fluid circuit module includes at least one container integrally joined in flow communication with at least one of said conduit means, said container thereby forming an integral part of said module.
Claim 10
Dependent Claim
29 words
A fluid pumping assembly according to claim 7 wherein said container includes a sealed container of fluid comprising the source of fluid for said conduit means integrally joined thereto.
Claim 11
Dependent Claim
77 words
A fluid pumping assembly according to claim 7 wherein said apparatus further includes sensing means positioned adjacent to said pump rotors, and wherein said fluid circuit module includes at least one monitoring device carried by said housing means in flow communication with at least one of said conduit means, and wherein said housing positioning means is further operative for positioning said housing means on said apparatus with said monitoring device in operative contact with said sensing means.
Claim 12
Dependent Claim
41 words
A fluid pumping assembly according to claim 7 wherein each of said loop portions is resiliently biased toward an upright freestanding position when said module is out of association with said apparatus to accommodate said interfit with said respective pump rotor.
Claim 13
Dependent Claim
77 words
A fluid pumping assembly according to claim 3 wherein said apparatus further includes sensing means positioned adjacently to said pump rotor, and wherein said fluid circuit module includes at least one monitoring device carried by said housing means in flow communication with at least one of said conduit means, and wherein said housing positioning means is further operative for positioning said housing means on said apparatus with said monitoring device in operative contact with said sensing means.
Claim 14
Dependent Claim
10 words
A fluid pumping assembly according to claim 3 or 11
Claim 15
Dependent Claim
33 words
wherein said fluid circuit module includes at least one container integrally joined in flow communication with at least one of said conduit means, said container thereby forming an integral part of said module.
Claim 16
Dependent Claim
33 words
wherein said fluid circuit module includes at least one container integrally joined in flow communication with at least one of said conduit means, said container thereby forming an integral part of said module.
Claim 17
Dependent Claim
29 words
A fluid pumping assembly according to claim 12 wherein said container includes a sealed container of fluid comprising the source of fluid for said conduit means integrally joined thereto.
Claim 18
Dependent Claim
41 words
A fluid pumping assembly according to claim 12 wherein each of said loop portions is resiliently biased toward an upright freestanding position when said module is out of association with said apparatus to accommodate said interfit with said respective pump rotor.
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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) | 1988-07-01 | 1988-12-31 | 1989-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-01 | 1992-12-31 | 1993-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-01 | 1996-12-31 | 1997-07-02 | $7700.00 | Window Closed / Lapsed |