Patent US6123682A successfully refreshed from Google Patents.
US6123682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed chest coronary bypass
Assignee: Horizon Technology Funding Co LLC
•
Filing: 1998-04-03
•
Granted: 2000-09-26
•
Expires: 2018-04-03
Abstract
Abstract A method and apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery. The coronary artery bypass procedure may be performed with or without cardiopulmonary bypass.
Inventors
- 👤 Mark B. Knudson
- 👤 William L. Giese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:03
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/12; A61B17/12022; A61B17/12027; A61B17/1204; A61B17/12045; A61B17/12131; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/064; A61F2/07; A61F2/24; A61F2/2493; A61F2/82; A61F2/856; A61F2/86; A61F2/90; A61F2/95; A61F2/954; A61F2/958; A61B17/34; A61B17/3415; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/1107; A61B2017/1135; A61B2017/12127; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61F2002/061; A61F2002/065; A61F2002/068; A61F2002/821; A61F2240/00; A61F2240/001; A61F2240/008; Y; Y10; Y10S; Y10S623/00; Y10S623/902; Y10S623/903
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
181 words
An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising; a hollow blood flow conduit having a first portion and a separate second portion; the first portion adapted to be advanced through a patient's vasculature system and inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first portion in blood-flow communication with blood contained within the chamber, said first portion dimensioned so as to extend through the heart wall from said coronary vessel into communication with said chamber; the second portion adapted to be advanced through the patient's vasculature system to be inserted into and retained within the coronary vessel with an opening of the second portion in blood flow communication with a lumen of the coronary vessel; and the first and second portions connectable when so retained to form the conduit defining a blood flow path between the openings of the first and second portions from said heart chamber to said coronary vessel.
Claim 2
Independent Claim
181 words
An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising; a hollow blood flow conduit having a first portion and a separate second portion; the first portion adapted to be advanced through a patient's vasculature system and inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first portion in blood-flow communication with blood contained within the chamber, said first portion dimensioned so as to extend through the heart wall from said coronary vessel into communication with said chamber; the second portion adapted to be advanced through the patient's vasculature system to be inserted into and retained within the coronary vessel with an opening of the second portion in blood flow communication with a lumen of the coronary vessel; and the first and second portions connectable when so retained to form the conduit defining a blood flow path between the openings of the first and second portions from said heart chamber to said coronary vessel.
Claim 3
Dependent Claim
30 words
An apparatus according to claim 1 wherein the conduit has a portion to block flow out of the conduit in a direction axially opposite the opening of the second portion.
Claim 4
Dependent Claim
31 words
An apparatus according to claim 2 wherein the conduit is a substantially L-shaped, rigid tube with first and second legs of the L-shaped tube being the first and second portions, respectively.
Claim 5
Dependent Claim
40 words
An apparatus according to claim 1 wherein the conduit is a substantially T-shaped, rigid tube with a perpendicular arm of the T-shaped tube being the first portion and with axially aligned arms of the T-shaped tube being the second portion.
Claim 6
Dependent Claim
27 words
An apparatus according to claim 1 wherein either of said first and second portions is provided with a valve to close once per cycle of the heart.
Claim 7
Independent Claim
184 words
An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising; a hollow blood flow conduit having a first portion and a separate second portion; the first portion adapted to be advanced through a patient's vasculature system and inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first portion in blood-flow communication with blood contained within the chamber; the second portion adapted to be advanced through the patient's vasculature system to be inserted into and retained within the coronary vessel with an opening of the second portion in blood flow communication with a lumen of the coronary vessel; the first and second portions connectable when so retained to form the conduit defining a blood flow path between the openings of the first and second portions; and a reservoir connected to said conduit for accumulating blood from said conduit during periods of high blood pressure and for discharging accumulated blood into said conduit during periods of low blood pressure.
Claim 8
Independent Claim
184 words
An apparatus for use in a coronary artery bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the apparatus comprising; a hollow blood flow conduit having a first portion and a separate second portion; the first portion adapted to be advanced through a patient's vasculature system and inserted into and retained within the heart wall of a heart chamber containing oxygenated blood with an opening of the first portion in blood-flow communication with blood contained within the chamber; the second portion adapted to be advanced through the patient's vasculature system to be inserted into and retained within the coronary vessel with an opening of the second portion in blood flow communication with a lumen of the coronary vessel; the first and second portions connectable when so retained to form the conduit defining a blood flow path between the openings of the first and second portions; and a reservoir connected to said conduit for accumulating blood from said conduit during periods of high blood pressure and for discharging accumulated blood into said conduit during periods of low blood pressure.
Claim 9
Independent Claim
131 words
A method for performing a coronary bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the method comprising: inserting a first hollow conduit through a patient's vasculature system and advancing the first hollow conduit in to the heart and placing the first hollow conduit into the heart wall with an opening of the first hollow conduit in communication with a heart chamber; inserting a second hollow conduit through a patient's vasculature and advancing the second hollow conduit to the vessel and placing the second hollow conduit within the vessel to direct blood to flow from the second hollow conduit into the vessel; and connecting the first and second hollow conduits to form a conduit with a blood flow path from the chamber into the vessel.
Claim 10
Independent Claim
131 words
A method for performing a coronary bypass procedure at a coronary vessel disposed lying at an exterior of a heart wall, the method comprising: inserting a first hollow conduit through a patient's vasculature system and advancing the first hollow conduit in to the heart and placing the first hollow conduit into the heart wall with an opening of the first hollow conduit in communication with a heart chamber; inserting a second hollow conduit through a patient's vasculature and advancing the second hollow conduit to the vessel and placing the second hollow conduit within the vessel to direct blood to flow from the second hollow conduit into the vessel; and connecting the first and second hollow conduits to form a conduit with a blood flow path from the chamber into the vessel.
Claim 11
Dependent Claim
31 words
A method according to claim 7 further comprising placing an opening of the second hollow conduit facing away from an obstruction which at least partially obstructs blood flow through the vessel.
Claim 12
Dependent Claim
14 words
A method according to claim 7 wherein the coronary vessel is a coronary artery.
Claim 13
Dependent Claim
18 words
A method according to claim 7 comprising closing the blood flow path once per cycle of the heart.
Claim 14
Dependent Claim
22 words
A method according to claim 1, wherein the conduit formed by the first and second hollow conduits is generally rigid and L-shaped.
References Cited (Backward Citations)
US2127903A
Cited
US3042021A
Cited
US4902289A
Cited
US4546499A
Cited
US4562597A
Cited
US4581017A
Cited
US4581017B1
Cited
US5275622A
Cited
RU2026640C1
Cited
US4862886A
Cited
US4769031A
Cited
US4712551A
Cited
US5071406A
Cited
SU1754128A1
Cited
US4995857A
Cited
US5505725A
Cited
US5054484A
Cited
US5489295A
Cited
EP0515867A2
Cited
WO1993000868A1
Cited
US5370685A
Cited
US5256150A
Cited
US5484418A
Cited
US5395349A
Cited
US5209731A
Cited
US5254097A
Cited
US5383925A
Cited
US5429144A
Cited
US5409019A
Cited
US5287861A
Cited
US5452733A
Cited
US5425705A
Cited
US5443497A
Cited
US5501698A
Cited
US5458574A
Cited
WO1995035065A1
Cited
WO1996000033A1
Cited
WO1996004854A1
Cited
WO1996005773A1
Cited
US5676696A
Cited
US5653744A
Cited
WO1997013463A1
Cited
WO1997013471A1
Cited
US5830222A
Cited
WO1997027897A1
Cited
WO1997027893A1
Cited
WO1997027898A1
Cited
US5662124A
Cited
US5755682A
Cited
US5655548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-09-26 | 2004-03-27 | 2004-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-09-26 | 2008-03-27 | 2008-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-09-26 | 2012-03-27 | 2012-09-26 | $7700.00 | Window Closed / Lapsed |