US4596351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical stapling apparatus
Assignee: VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I ISPYTATELNY INSTITUT MEDITSINSKOI TEKHNIKI
•
Filing: 1984-08-17
•
Granted: 1986-06-24
•
Expires: 2004-08-17
Abstract
Abstract A surgical stapling apparatus, comprising a thrust case incorporating a lengthwise groove. Said groove accommodates a magazine containing staples, and drivers of the staples, and a wedge interacting with said pushers and seating on a carriage supported in guides running along said staple case. A surface of said wedge interacting with said drivers is curvilinear, with lines tangent to the generatrix thereof and a travelling direction of said wedge located so as to constitute an angle varying gradually from 45 deg to zero between a front part of said wedge and the back part thereof in the direction of the wedge travel during stapling procedure.
Inventors
- 👤 Vladimir M. Fedotov
- 👤 Vladimir P. Kharchenko
- 👤 Iosif L. Lipovsky
- 👤 Tatyana L. Ivanova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:35
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/072; A61B17/07207; A61B2017/07214; A61B2017/0725
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A surgical stapling apparatus, comprising: a thrust case; a staple case; a lengthwise groove formed by side walls of said staple case; a magazine containing staples and staple drivers and seating in said lengthwise groove; said thrust case incorporating an anvil serving as a thrust receiver of said staples ejected from said magazine and for bending the staples at the free ends thereof; a wedge serving for interaction with said drivers of said staples in said magazine and disposed in said lengthwise groove; guides located along said staple case; a carriage disposed in said guides; said wedge attached to said carriage; said wedge incorporating a surface interacting with said staples of said magazine and shaped curvilinearly whereby lines tangent to the generatrix thereof and a travelling direction of said wedge form an angle varying gradually from 45 deg to zero between the front part thereof and the back part thereof in the wedge travelling direction during the stapling procedure; a sectional hinge joint; a detent; said sectional hinge joint and said detent serving for interconnecting said thrust case and said staple case; and a suture clearance adjustment device.
Claim 2
Dependent Claim
188 words
A surgical stapling apparatus, comprising: a thrust case; a staple case; a lengthwise groove formed by side walls of said staple case; a magazine containing staples and staple drivers and seating in said lengthwise groove; said thrust case incorporating an anvil serving as a thrust receiver of said staples ejected from said magazine and for bending the staples at the free ends thereof; a wedge serving for interaction with said drivers of said staples in said magazine and disposed in said lengthwise groove; guides located along said staple case; a carriage disposed in said guides; said wedge attached to said carriage; said wedge incorporating a surface interacting with said staples of said magazine and shaped curvilinearly whereby lines tangent to the generatrix thereof and a travelling direction of said wedge form an angle varying gradually from 45 deg to zero between the front part thereof and the back part thereof in the wedge travelling direction during the stapling procedure; a sectional hinge joint; a detent; said sectional hinge joint and said detent serving for interconnecting said thrust case and said staple case; and a suture clearance adjustment device.
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) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |