US4257416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-channel venipuncture infusion set
Assignee: Smiths Medical ASD Inc
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Filing: 1979-05-03
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Granted: 1981-03-24
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Expires: 1999-05-03
Abstract
Abstract A multi-channel venipuncture infusion set is disclosed for simultaneously dispensing multiple, intravenous solutions, parenteral fluids and drugs, and which also permits withdrawal of blood samples without disconnecting the infusion set from the dispensing sources and without removing or replacing the venipuncture needle in the patient.
Inventors
- 👤 David Prager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:51
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/1407; A61M5/1408; A61M39/00; A61M39/22; A61M39/28; A61M39/286; A61M39/287
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
86 words
A multi-channel infusion set comprising a multiple passage manifold having first, second, third and fourth passages in permanently open communication, a venipuncture needle tube connected to said first manifold passage, at least three inflow tubes having one end thereof connected to said second, third and fourth manifold passages, respectively, female flanged adaptors connected to the opposite ends of each of said inflow tubes, and pinch-type closure means operatively associated with each of said needle tube and inflow tubes for selectively pinching each of said tubes closed.
Claim 2
Dependent Claim
86 words
A multi-channel infusion set comprising a multiple passage manifold having first, second, third and fourth passages in permanently open communication, a venipuncture needle tube connected to said first manifold passage, at least three inflow tubes having one end thereof connected to said second, third and fourth manifold passages, respectively, female flanged adaptors connected to the opposite ends of each of said inflow tubes, and pinch-type closure means operatively associated with each of said needle tube and inflow tubes for selectively pinching each of said tubes closed.
Claim 3
Dependent Claim
32 words
The multi-channel infusion set as claimed in claim 1 in which said manifold comprises a multi-passage portion and a plate portion, and said closure means are permanently secured to said plate portion.
Claim 4
Dependent Claim
21 words
The multi-channel infusion set as claimed in claim 1 in which said closure means are integral with said multiple passage manifold.
Claim 5
Dependent Claim
23 words
The multi-channel infusion set as claimed in claim 1 in which said female adaptors include removable caps, and said caps include vent means.
Claim 6
Dependent Claim
23 words
The multi-channel infusion set as claimed in claim 3 in which at least some of said closure means comprise pairs of tapered posts.
Claim 7
Dependent Claim
22 words
The multi-channel infusion set as claimed in claim 3 in which at least some of said closure means comprise a wedge-type slot.
Claim 8
Dependent Claim
33 words
The multi-channel infusion set as claimed in claim 3 in which some of said closure means comprise pairs of tapered posts and at least one of said closure means comprises a wedge-type slot.
Claim 9
Dependent Claim
42 words
The multi-channel infusion set as claimed in claim 1 in which said venipuncture needle tube terminates in a male lock type adaptor having a size and shape such as to be received in the female adaptor of a conventional, single-tube infusion set.
Claim 10
Independent Claim
165 words
A method of administering multiple parenteral fluids into a patient's vein through a single multi-channel infusion set including a needle tube having one end connected in permanently open fluid communication with at least two initially open inflow tubes comprising: (a) closing said needle tube to the passage of fluid there through, (b) passing a first fluid into and through one of said open inflow tubes and out through the other of said open inflow tubes to vent the air from both of said inflow tubes, (c) closing said other inflow tube, (d) opening said needle tube and passing said first fluid through said needle tube to vent the air therefrom, (e) connecting said needle tube to said patient's vein, (f) administering a first parenteral fluid through one of said inflow tubes and said needle tube into said pateint's vein, (g) opening said other inflow tube, and (h) administering a second parenteral fluid through said second inflow tube and said needle tube into said patient's vein.
Claim 11
Independent Claim
165 words
A method of administering multiple parenteral fluids into a patient's vein through a single multi-channel infusion set including a needle tube having one end connected in permanently open fluid communication with at least two initially open inflow tubes comprising: (a) closing said needle tube to the passage of fluid there through, (b) passing a first fluid into and through one of said open inflow tubes and out through the other of said open inflow tubes to vent the air from both of said inflow tubes, (c) closing said other inflow tube, (d) opening said needle tube and passing said first fluid through said needle tube to vent the air therefrom, (e) connecting said needle tube to said patient's vein, (f) administering a first parenteral fluid through one of said inflow tubes and said needle tube into said pateint's vein, (g) opening said other inflow tube, and (h) administering a second parenteral fluid through said second inflow tube and said needle tube into said patient's vein.
Claim 12
Dependent Claim
72 words
The method as claimed in claim 9 in which, said multi-channel infusion set includes a third inflow tube, and said method includes venting air from all three of said inflow tubes by passing said fluid in step (b) into one of said inflow tubes and out through both of the other two inflow tubes, and thereafter administering at least two parenteral fluids into said patient's vein through two of said inflow tubes.
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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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |