US5030224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coronary artery retraction clip
Assignee: PIONEERING TECHNOLOGIES Inc 3900 YOUNGFIELD ST WHEAT RIDGE CO 80033 A CORP OF
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Filing: 1989-09-25
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Granted: 1991-07-09
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Expires: 2009-09-25
Abstract
Abstract A coronary artery retraction clip consisting of a single piece of stainless steel wire formed into a uniquely shaped spring, partially covered with a soft, polymer coating to provide a non-slip surface allowing the clip to be readily gripped with surgical forceps, or the gloved hand is disclosed.
Inventors
- 👤 John T. M. Wright
- 👤 Daniel Loisance
- 👤 Noel L. Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:24
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/08; A61B17/083
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
A coronary artery retraction clip for retracting tissue from the coronary artery during coronary anastomosis comprising: a single, unitary length of biocompatible metal wire configured to form a central loop spring, first and second support arms extending from the loop spring diverging from each other and, at the proximal end of the respective first and second support arms, first and second eyes, and first and second hooks for engaging the tissue to be retracted, the central loop spring, support arms and eyes lying substantially in a single plane, the first and second eyes being formed of the metal wire lying substantially in said plane and configured to receive the tips of forceps substantially perpendicular to said plane, the hooks extending out of said plane and outwardly from the respective arms.
Claim 2
Dependent Claim
130 words
A coronary artery retraction clip for retracting tissue from the coronary artery during coronary anastomosis comprising: a single, unitary length of biocompatible metal wire configured to form a central loop spring, first and second support arms extending from the loop spring diverging from each other and, at the proximal end of the respective first and second support arms, first and second eyes, and first and second hooks for engaging the tissue to be retracted, the central loop spring, support arms and eyes lying substantially in a single plane, the first and second eyes being formed of the metal wire lying substantially in said plane and configured to receive the tips of forceps substantially perpendicular to said plane, the hooks extending out of said plane and outwardly from the respective arms.
Claim 3
Dependent Claim
128 words
A coronary artery retraction clip for retracting tissue from the coronary artery during coronary anastomosis comprising: a length of biocompatible metal wire configured to form a central loop spring, first and second support arms extending from the loop spring diverging from each other and, at the proximal end of the respective first and second support arms, first and second eyes configured and constructed to receive forceps, and first and second hooks for engaging the tissue to be retracted, the central loop spring, support arms and eyes lying substantially in a single plane, the hooks extending out of said plane and outwardly from the respective arms and; first and second soft, resilient polymeric sleeves around wire which forms, respectively, the first and second arms and first and second eyes.
Claim 4
Dependent Claim
128 words
A coronary artery retraction clip for retracting tissue from the coronary artery during coronary anastomosis comprising: a length of biocompatible metal wire configured to form a central loop spring, first and second support arms extending from the loop spring diverging from each other and, at the proximal end of the respective first and second support arms, first and second eyes configured and constructed to receive forceps, and first and second hooks for engaging the tissue to be retracted, the central loop spring, support arms and eyes lying substantially in a single plane, the hooks extending out of said plane and outwardly from the respective arms and; first and second soft, resilient polymeric sleeves around wire which forms, respectively, the first and second arms and first and second eyes.
References Cited (Backward Citations)
US2238563A
Cited
US2232142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |