US3851646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector for open heart surgery
Assignee: 3M Co
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Filing: 1973-04-13
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Granted: 1974-12-03
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Expires: 1993-04-13
Abstract
Abstract A connector for open heart surgery to allow blood from the superior vena cava and the inferior vena cava to pass to the pump oxygenator in a smooth and coordinated flow including a plastic connector body having a straight flow passage and parallel branch passages entering the body and joining the flow passage at spaced points but lying in the same plane and having about the same obtuse angle with the axis of the flow passage.
Inventors
- 👤 R Sarns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:34
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/3653; A61M1/3655; A61M1/3659; A61M39/00; A61M39/10; A61M2039/1088; Y; Y10; Y10S; Y10S128/00; Y10S128/03; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
In apparatus for open heart surgery wherein cannulae are adapted to lead from the inferior vena cava and the superior vena cava, respectively, for transmitting low pressure venous blood to a tube leading to a pump oxygenator, the improvement which comprises: a. a connector including an elongate body having an axial passage blind at one end of the body and open at the other end, b. means at said other end for connection to the tube leading to the pump oxygenator, c. a pair of spaced branch arms integrally connected with said body lying on one side of said body in a plane common to the axis of said axial passage and extending at an angle to said body and having passages to flow into said axial passage, one at about the blind end of said passage and the other spaced approximately an inch from said blind end, said arms having an obtuse angle of about 130* to 140* to the axis of said axial passage, and d. means on the ends of said branch arms for connection of the respective cannulae from said inferior and superior venae cavae.
Claim 2
Dependent Claim
189 words
In apparatus for open heart surgery wherein cannulae are adapted to lead from the inferior vena cava and the superior vena cava, respectively, for transmitting low pressure venous blood to a tube leading to a pump oxygenator, the improvement which comprises: a. a connector including an elongate body having an axial passage blind at one end of the body and open at the other end, b. means at said other end for connection to the tube leading to the pump oxygenator, c. a pair of spaced branch arms integrally connected with said body lying on one side of said body in a plane common to the axis of said axial passage and extending at an angle to said body and having passages to flow into said axial passage, one at about the blind end of said passage and the other spaced approximately an inch from said blind end, said arms having an obtuse angle of about 130* to 140* to the axis of said axial passage, and d. means on the ends of said branch arms for connection of the respective cannulae from said inferior and superior venae cavae.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |