US5254097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined percutaneous cardiopulmonary bypass (PBY) and intra-aortic balloon (IAB) access cannula
Assignee: Cardio Access LLC
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Filing: 1992-01-06
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Granted: 1993-10-19
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Expires: 2012-01-06
Abstract
Abstract A cannula for performing two or more medical procedures either individually, seriatim or simultaneously, for example, combined percutaneous PBY and IAB procedures, which cannula includes a body having a common leg and two or more access port legs (e.g. a Y-shaped body), one access port for performing one procedure, a second access port for performing a second procedure, and hemostasis structure. A smooth continuous blood flow path is formed by a common lumen of a common leg of the cannula body and a primary lumen formed in a primary access port leg of the cannula body. The secondary access port legs are provided with secondary lumens that communicate with the common lumen.
Inventors
- 👤 Robert B. Schock
- 👤 John J. Lucas
- 👤 William C. Corrigan, Jr.
- 👤 Manuel L. Capinpin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:29
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/04
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
143 words
A cannula adapted for percutaneous insertion into the body of a patient and comprising percutaneous insertion means and a cannula body, said cannula body comprising a common leg having a distal end, a proximal end and a common lumen therethrough defined by a common lumen wall, said common lumen being in fluid communication with said percutaneous insertion means, a primary access port leg having a primary lumen defined by a primary lumen wall, said primary lumen being in fluid communication with said common lumen and forming a continuous blood flow path therewith, a secondary access port leg having a secondary lumen defined by a secondary lumen wall, and hemostasis means for providing access for percutaneous insertion of a catheter through said secondary lumen and said blood flow path, and for preventing a blood flow from said blood flow path through said secondary lumen.
Claim 2
Dependent Claim
143 words
A cannula adapted for percutaneous insertion into the body of a patient and comprising percutaneous insertion means and a cannula body, said cannula body comprising a common leg having a distal end, a proximal end and a common lumen therethrough defined by a common lumen wall, said common lumen being in fluid communication with said percutaneous insertion means, a primary access port leg having a primary lumen defined by a primary lumen wall, said primary lumen being in fluid communication with said common lumen and forming a continuous blood flow path therewith, a secondary access port leg having a secondary lumen defined by a secondary lumen wall, and hemostasis means for providing access for percutaneous insertion of a catheter through said secondary lumen and said blood flow path, and for preventing a blood flow from said blood flow path through said secondary lumen.
Claim 3
Dependent Claim
16 words
The cannula recited in claim 1, wherein said cannula body is formed of a flexible material.
Claim 4
Dependent Claim
18 words
The cannula recited in claim 1, wherein said cannula body is formed of a single-piece of elastomeric material.
Claim 5
Dependent Claim
14 words
The cannula recited in claim 1, wherein said hemostasis means comprises a hemostatic valve.
Claim 6
Dependent Claim
15 words
The cannula recited in claim 4, wherein said hemostatic valve comprises a passive self-closing valve.
Claim 7
Dependent Claim
14 words
The cannula recited in claim 4, wherein said hemostatic valve comprises a duck-bill valve.
Claim 8
Dependent Claim
14 words
The cannula recited in claim 4, wherein said hemostatic valve comprises an open-hole valve.
Claim 9
Dependent Claim
15 words
The cannula recited in claim 4, wherein said hemostatic valve comprises a perforated diaphragm valve.
Claim 10
Dependent Claim
14 words
The cannula recited in claim 4, wherein said hemostatic valve comprises an active valve.
Claim 11
Dependent Claim
15 words
The cannula recited in claim 4, wherein said hemostatic valve comprises a Touhy Borst valve.
Claim 12
Dependent Claim
14 words
The cannula recited in claim 1, wherein said hemostasis means comprises an obturator cap.
Claim 13
Dependent Claim
22 words
The cannula recited in claim 4, wherein a portion of said hemostatic valve forms an integral part of said common lumen wall.
Claim 14
Dependent Claim
32 words
The cannula recited in claim 12, wherein said hemostatic valve lies in a plane substantially in line with the common lumen and forms an angle with an axis of the primary lumen.
Claim 15
Dependent Claim
79 words
The cannula recited in claim 4, wherein said hemostatic valve comprises a conical portion, a semi-spherical portion and a slit portion, wherein a proximal end of the conical portion is in fluid communication with said secondary lumen, wherein said semi-spherical portion terminates a distal end of the conical portion, wherein said semi-spherical portion has an arcuate perforation therein, and wherein the slit portion is formed integral with the common lumen wall and is in registration with said arcuate perforation.
Claim 16
Dependent Claim
34 words
The cannula recited in claim 14, wherein the slit portion lies in a plane substantially parallel to the axis of the common lumen and forms an angle with an axis of the primary lumen.
Claim 17
Dependent Claim
25 words
The cannula recited in claim 1, wherein said percutaneous insertion means further comprises a sheath extension disposed at a distal end of said common leg.
Claim 18
Dependent Claim
26 words
The cannula recited in claim 1, wherein said percutaneous insertion means comprises a sheath extension in fluid communication with the common lumen, for percutaneous intravascular insertion.
Claim 19
Dependent Claim
19 words
The cannula recited in claim 4, wherein said secondary access port leg is substantially coaxial with said common leg.
Claim 20
Dependent Claim
33 words
The cannula recited in claim 18, wherein said secondary lumen has a distal end and a proximal end, and wherein said hemostatic valve is disposed at the distal end of said secondary lumen.
Claim 21
Dependent Claim
19 words
The cannula recited in claim 4, wherein said primary access port leg is substantially coaxial with said common leg.
Claim 22
Dependent Claim
33 words
The cannula recited in claim 20, wherein said secondary lumen has a distal end and a proximal end, and wherein said hemostatic valve is disposed at the distal end of said secondary lumen.
Claim 23
Dependent Claim
33 words
The cannula recited in claim 1, wherein said secondary lumen has a distal end and a proximal end, and wherein said hemostatic valve is disposed at the distal end of said secondary lumen.
Claim 24
Dependent Claim
45 words
The cannula recited in claim 1, wherein blood can enter said cannula, flow through said blood path from said primary lumen to said common lumen and out of said cannula when said catheter device is resident in said secondary lumen and in said common lumen.
Claim 25
Dependent Claim
33 words
The cannula recited in claim 23, wherein said secondary lumen has a distal end and a proximal end, and wherein said hemostatic valve is disposed at the distal end of said secondary lumen.
Claim 26
Dependent Claim
24 words
The cannula recited in claim 1, wherein said primary and secondary access port legs are disposed at a proximal end of said common leg.
Claim 27
Dependent Claim
20 words
The cannula recited in claim 4, wherein said hemostatic valve is disposed adjacent a proximal end of said common leg.
Claim 28
Dependent Claim
20 words
The cannula recited in claim 4, wherein said hemostatic valve is disposed between said secondary lumen and said common lumen.
Claim 29
Dependent Claim
20 words
The cannula recited in claim 4, wherein said hemostatic valve is disposed between said secondary lumen and said primary lumen.
Claim 30
Dependent Claim
16 words
The cannula recited in claim 1, wherein said cannula body is formed of a rigid material.
Claim 31
Dependent Claim
32 words
The cannula recited in claim 1, wherein said cannula body comprises a rigid body shell and internal components forming said common lumen wall, primary lumen wall, secondary lumen wall, and hemostasis means.
Claim 32
Dependent Claim
28 words
The cannula recited in claim 1, wherein said cannula body comprises a rigid body forming said common lumen wall, said primary lumen wall and said secondary lumen wall.
Claim 33
Dependent Claim
42 words
The cannula recited in claim 1, wherein said hemostasis means comprises a hemostatic valve selected from the group consisting of a passive self-closing valve, a duck-bill valve, an open-hole valve, a perforated diaphragm valve, an active valve, and a Touhy Borst valve.
Claim 34
Dependent Claim
42 words
The cannula recited in claim 2, wherein said hemostasis means comprises a hemostatic valve selected from the group consisting of a passive self-closing valve, a duck-bill valve, an open-hole valve, a perforated diaphragm valve, an active valve, and a Touhy Borst valve.
Claim 35
Dependent Claim
42 words
The cannula recited in claim 29, wherein said hemostasis means comprises a hemostatic valve selected from the group consisting of a passive self-closing valve, a duck-bill valve, an open-hole valve, a perforated diaphragm valve, an active valve, and a Touhy Borst valve.
Claim 36
Dependent Claim
42 words
The cannula recited in claim 30, wherein said hemostasis means comprises a hemostatic valve selected from the group consisting of a passive self-closing valve, a duck-bill valve, an open-hole valve, a perforated diaphragm valve, an active valve, and a Touhy Borst valve.
Claim 37
Dependent Claim
42 words
The cannula recited in claim 31, wherein said hemostasis means comprises a hemostatic valve selected from the group consisting of a passive self-closing valve, a duck-bill valve, an open-hole valve, a perforated diaphragm valve, an active valve, and a Touhy Borst valve.
Claim 38
Dependent Claim
14 words
The cannula recited in claim 29, wherein said hemostasis means comprises an obturator cap.
Claim 39
Dependent Claim
14 words
The cannula recited in claim 30, wherein said hemostasis means comprises an obturator cap.
Claim 40
Dependent Claim
14 words
The cannula recited in claim 31, wherein said hemostasis means comprises an obturator cap.
Claim 41
Dependent Claim
31 words
The cannula recited in claim 1, wherein said hemostasis means comprises at least two components selected from the group comprised of an obturator cap, a passive valve and an active valve.
Claim 42
Dependent Claim
35 words
The cannula recited in claim 1, wherein said hemostasis means comprises at least two components selected from the group comprised of an obturator cap, a duck-bill valve, an open-hole valve, and a perforated diaphragm valve.
Claim 43
Dependent Claim
163 words
A cannula adapted to permit passage therethrough of a catheter for percutaneous insertion in the body of a patient, and comprising a cannula body including a common leg having a common lumen defined by a common lumen wall, said common lumen being in fluid communication with percutaneous insertion means, at least one primary access port leg, each such primary access port leg having a primary lumen therein defined by a primary lumen wall, each said primary lumen being in fluid communication with the common lumen and forming a continuous blood flow path therewith, at least one secondary access port leg, each such secondary access port leg having a secondary lumen therein defined by a secondary lumen wall, and at least one hemostatic valve arranged to provide access for percutaneous insertion of a catheter through said at least one secondary lumen and said blood flow path, and to prevent a blood flow from said blood flow path through said at least one secondary lumen.
Claim 44
Dependent Claim
163 words
A cannula adapted to permit passage therethrough of a catheter for percutaneous insertion in the body of a patient, and comprising a cannula body including a common leg having a common lumen defined by a common lumen wall, said common lumen being in fluid communication with percutaneous insertion means, at least one primary access port leg, each such primary access port leg having a primary lumen therein defined by a primary lumen wall, each said primary lumen being in fluid communication with the common lumen and forming a continuous blood flow path therewith, at least one secondary access port leg, each such secondary access port leg having a secondary lumen therein defined by a secondary lumen wall, and at least one hemostatic valve arranged to provide access for percutaneous insertion of a catheter through said at least one secondary lumen and said blood flow path, and to prevent a blood flow from said blood flow path through said at least one secondary lumen.
Claim 45
Dependent Claim
132 words
A cannula adapted for percutaneous insertion into the body of a patient comprising percutaneous insertion means and a cannula body, said cannula comprising a common leg having a distal end, a proximal end, and a common lumen therethrough defined by a common lumen wall, a first access port leg having a first lumen defined by a first lumen wall, first hemostasis means for preventing blood from exiting through said first access port leg when said leg is not in use, a second access port leg having a second lumen defined by a second lumen wall, and second hemostasis means for preventing blood from exiting through said second leg when said leg is not in use, wherein access to said common lumen can be gained through each of said first and second legs.
Claim 46
Dependent Claim
132 words
A cannula adapted for percutaneous insertion into the body of a patient comprising percutaneous insertion means and a cannula body, said cannula comprising a common leg having a distal end, a proximal end, and a common lumen therethrough defined by a common lumen wall, a first access port leg having a first lumen defined by a first lumen wall, first hemostasis means for preventing blood from exiting through said first access port leg when said leg is not in use, a second access port leg having a second lumen defined by a second lumen wall, and second hemostasis means for preventing blood from exiting through said second leg when said leg is not in use, wherein access to said common lumen can be gained through each of said first and second legs.
Claim 47
Dependent Claim
12 words
The cannula recited in claim 43, further comprising a third access leg.
Claim 48
Dependent Claim
40 words
The cannula recited in claim 44, further comprising hemostasis means for preventing blood from exiting through said third leg when said leg is not in use, and wherein access to said common lumen can be gained through said third leg.
Claim 49
Dependent Claim
12 words
The cannula recited in claim 44, further comprising a fourth access leg.
Claim 50
Dependent Claim
40 words
The cannula recited in claim 46, further comprising hemostasis means for preventing blood from exiting through said fourth leg when said leg is not in use, and wherein access to said common lumen can be gained through said fourth leg.
Claim 51
Dependent Claim
16 words
The cannula recited in claim 44, wherein each of said hemostasis means comprises a hemostasis valve.
Claim 52
Dependent Claim
16 words
The cannula recited in claim 45, wherein each of said hemostasis means comprises a hemostasis valve.
Claim 53
Dependent Claim
16 words
The cannula recited in claim 47, wherein each of said hemostasis means comprises a hemostasis valve.
Claim 54
Dependent Claim
40 words
The cannula recited in claim 48, wherein each said hemostasis valve is selected from the group consisting of a passive self-closing valve, a duck-bill valve, an open-hole valve, a perforated diaphragm valve, an active valve, and a Touhy Borst valve.
Claim 55
Dependent Claim
40 words
The cannula recited in claim 49, wherein each said hemostasis valve is selected from the group consisting of a passive self-closing valve, a duck-bill valve, an open-hole valve, a perforated diaphragm valve, an active valve, and a Touhy Borst valve.
Claim 56
Dependent Claim
40 words
The cannula recited in claim 50, wherein each said hemostasis valve is selected from the group consisting of a passive self-closing valve, a duck-bill valve, an open-hole valve, a perforated diaphragm valve, an active valve, and a Touhy Borst valve.
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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) | 1996-10-18 | 1997-04-19 | 1997-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-18 | 2001-04-19 | 2001-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-18 | 2005-04-19 | 2005-10-19 | $7700.00 | Window Closed / Lapsed |