US3790057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument for suturing blood vessels with u-shaped staples
Assignee: Individual
•
Filing: 1972-01-28
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Granted: 1974-02-05
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Expires: 1992-01-28
Abstract
Abstract A surgical instrument for suturing blood vessels with U-shaped staples, has two supporting semibushes whose cylindrical surface has depressions for staples to be deformed, and two staple semibushes that embrace the supporting semibushes from outside so that an annular gap is left therebetween to accommodate the walls of the blood vessel being sutured. The staple semibushes are provided with radial slots, wherein staple-magazines are movably mounted; the magazines have staple recesses and staple ejectors located inside said magazines. The instrument is provided with mechanical actuators to impart radial motion to the magazines and staple ejectors. The end of a blood vessel is everted as a cuff on the assembled supporting semibushes and on the blood-vessel end so everted, the other end of the blood vessel to be sutured on is disposed in overlapping relation, whereupon the staple semibushes are assembled embracing the overlapping region of the blood-vessel ends. Suturing is performed in a single motion by causing U-shaped staples to eject from the staple magazines. The ejected staples penetrate the overlapping walls of the bloodvessel and get deformed by impinging against the depressions on the supporting semibushes. Suturing performed, the semibushes are disassembled and the surgical instrument withdrawn.
Inventors
- 👤 M Razgulov
- 👤 E Oblasti
- 👤 G Astafiev
- 👤 I Korolkoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:04
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/1152
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
334 words
A surgical instrument for suturing to join cut ends of a blood-vessel with U-shaped staples, comprising: a supporting part of the instrument; a carrier strip on said supporting part; first and second supporting semibushes, said first supporting semibush being fixed to said supporting body and said second semibush being fixed to said carrier strip, said first and second semibushes, when assembled forming a cylindrical bore for accommodating the blood-vessel being sutured; depressions for deforming free ends of the U-shaped staples being formed on an outside cylindrical surface of each said supporting semibush; a staple part of the instrument comprising a staple body and a carrier strip; first and second staple semibushes of which the first one is fixed to said staple body and the second secured to said carrier strip, said first and second staple semibushes when assembled concentrically of said supporting semibushes from outside forming an annular gap in between said supporting and said staple semibushes to accommodate the walls of the bloodvessel being sutured; radial slots in said staple semibushes located opposite said respective depressions in said supporting semibushes; magazine means located in said radial slots for storing and holding U-shaped staples; staple recesses in said magazines; staples ejectors accommodated in said magazines; two magazine semirings formed to swivel with respect to the staple semibushes; sloping grooves in said magazine semirings; shanks on said magazines adapted to interact with said sloping grooves so that swivelling motion of said magazine semirings results in radial reciprocating motion of said magazines, manually actuated means for imparting swivelling motion to said magazine semirings; and means to impart radial motion to said staple ejectors comprising two staple semirings made to swivel with respect to the staple semibushes; sloping grooves in said staple semirings; shanks on said staple ejectors adapted to interact with said grooves in the staple semirings so that swivelling motion of said staple semirings results in radial reciprocating motion of said staple ejectors, and manually actuated means for imparting swivelling motion to said staple semirings.
Claim 2
Dependent Claim
334 words
A surgical instrument for suturing to join cut ends of a blood-vessel with U-shaped staples, comprising: a supporting part of the instrument; a carrier strip on said supporting part; first and second supporting semibushes, said first supporting semibush being fixed to said supporting body and said second semibush being fixed to said carrier strip, said first and second semibushes, when assembled forming a cylindrical bore for accommodating the blood-vessel being sutured; depressions for deforming free ends of the U-shaped staples being formed on an outside cylindrical surface of each said supporting semibush; a staple part of the instrument comprising a staple body and a carrier strip; first and second staple semibushes of which the first one is fixed to said staple body and the second secured to said carrier strip, said first and second staple semibushes when assembled concentrically of said supporting semibushes from outside forming an annular gap in between said supporting and said staple semibushes to accommodate the walls of the bloodvessel being sutured; radial slots in said staple semibushes located opposite said respective depressions in said supporting semibushes; magazine means located in said radial slots for storing and holding U-shaped staples; staple recesses in said magazines; staples ejectors accommodated in said magazines; two magazine semirings formed to swivel with respect to the staple semibushes; sloping grooves in said magazine semirings; shanks on said magazines adapted to interact with said sloping grooves so that swivelling motion of said magazine semirings results in radial reciprocating motion of said magazines, manually actuated means for imparting swivelling motion to said magazine semirings; and means to impart radial motion to said staple ejectors comprising two staple semirings made to swivel with respect to the staple semibushes; sloping grooves in said staple semirings; shanks on said staple ejectors adapted to interact with said grooves in the staple semirings so that swivelling motion of said staple semirings results in radial reciprocating motion of said staple ejectors, and manually actuated means for imparting swivelling motion to said staple semirings.
Claim 3
Dependent Claim
79 words
A surgical instrument as claimed in claim 1, wherein said means for imparting swivelling motion to said magazine semirings comprises: a rod movable lengthwise of said staple body: threading provided on one end of said rod; a sloping groove at the other end of said rod; a nut provided to co-operate with said threading; and a projection formed on one of said magazine semirings and adapted to interact with said sloping groOve at said other end of said rod.
Claim 4
Dependent Claim
42 words
A surgical instrument as claimed in claim 1, wherein said means for imparting swivelling motion to said staple semirings comprises: a manually actuated pivoted lever having a toothed segment; and projection means on said staple semirings for co-operating with said toothed segment.
Claim 5
Dependent Claim
63 words
A surgical instrument as claimed in claim 2, further provided with a self-acting limiter of motion of said staple ejectors to coordinate the motion of said staple ejectors with that of said magazines, said limiter comprising a stop fixed on said rod and a projection having a curvilinear surface and located on the actuating lever, said projection being adapted to engage said stop.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |