US5509890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heart retractor
Assignee: Individual
•
Filing: 1994-11-14
•
Granted: 1996-04-23
•
Expires: 2014-11-14
Abstract
Abstract The heart retractor for use in coronary bypass operations consists of a pair of long tapes, a short tape having an opening or a pair of short tapes and a couple of rings freely mounted thereon for forming an opening, and a longitudinal tape for connecting the long tapes and short tape or tapes in parallel with each other.
Inventors
- 👤 Shigeru Kazama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/00234; A61B2017/00238; A61B2017/00243
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
54 words
A heart retractor for use in a coronary bypass operation comprising a pair of upper and lower parallel long tapes, a short tape having an opening arranged between the upper and lower tapes, and a longitudinal tape for connecting the upper and lower long tapes and the short tape in parallel with each other.
Claim 2
Dependent Claim
54 words
A heart retractor for use in a coronary bypass operation comprising a pair of upper and lower parallel long tapes, a short tape having an opening arranged between the upper and lower tapes, and a longitudinal tape for connecting the upper and lower long tapes and the short tape in parallel with each other.
Claim 3
Dependent Claim
34 words
A heart retractor for use in a coronary bypass operation as claimed in claim 1 in which all of the long tapes, short tapes and longitudinal tape are made of a non-extensible fabric material.
Claim 4
Dependent Claim
34 words
A heart retractor for use in a coronary bypass operation as claimed in claim 1 in which the length of the short tape is about a half of the length of the long tape.
Claim 5
Dependent Claim
63 words
A heart retractor for use in a coronary bypass operation comprising a pair of upper and lower long tapes, a pair of short tapes arranged between the upper and lower long tapes, a couple of rings mounted on the pair of short tapes, and a longitudinal tape for connecting the upper and lower tapes and two short tapes in parallel with each other.
Claim 6
Dependent Claim
63 words
A heart retractor for use in a coronary bypass operation comprising a pair of upper and lower long tapes, a pair of short tapes arranged between the upper and lower long tapes, a couple of rings mounted on the pair of short tapes, and a longitudinal tape for connecting the upper and lower tapes and two short tapes in parallel with each other.
Claim 7
Dependent Claim
25 words
A heart retractor for use in a coronary bypass operation as claimed in claim 4 in which the two rings are made of plastic material.
References Cited (Backward Citations)
US3983863A
Cited
US4973300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-23 | 1999-10-23 | 2000-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-23 | 2003-10-23 | 2004-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-23 | 2007-10-23 | 2008-04-23 | $7700.00 | Window Closed / Lapsed |