US6030370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument
Assignee: Aesculap AG
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Filing: 1998-01-27
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Granted: 2000-02-29
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Expires: 2018-01-27
Abstract
Abstract In the performance of vascular anastomosis, in order to improve and simplify the making of the connection between the vessels, a surgical instrument is proposed which is characterized by a tubular shaft closed at the front end thereof, with an outer diameter which enables introduction into one of the vessels, with suction openings in the wall of the shaft in the area of the front end thereof, and with a suction connection on the shaft at a distance from the front end thereof.
Inventors
- 👤 Thomas Kupka
- 👤 Joachim Rein
- 👤 Johannes Solf
- 👤 Manfred Dworschak
- 👤 Theodor Lutze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:06
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B2017/00535; A61B2017/00557; A61B2017/1135; A61B17/30; A61B2017/306
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
152 words
A surgical instrument for performing vascular anastomosis, comprising: a tubular shaft closed at a front end thereof, with an outer diameter which enables the shaft to be introduced into a first vessel, suction openings in a wall of said shaft in an area of the front end thereof, and a suction connection on said shaft at a distance from the front end thereof, wherein: said suction openings communicate with the suction connection to provide a suction for drawing in a wall of the first vessel against the wall of the shaft to fix a position of the first vessel with respect to said shaft; said suction openings comprise longitudinal slots distributed over a circumference of said shaft; said shaft has an enlargement at the front end thereof; additional suction openings are arranged in a wall of said enlargement; and the shaft's suction openings are arranged in said shaft adjacent to said enlargement.
Claim 2
Dependent Claim
152 words
A surgical instrument for performing vascular anastomosis, comprising: a tubular shaft closed at a front end thereof, with an outer diameter which enables the shaft to be introduced into a first vessel, suction openings in a wall of said shaft in an area of the front end thereof, and a suction connection on said shaft at a distance from the front end thereof, wherein: said suction openings communicate with the suction connection to provide a suction for drawing in a wall of the first vessel against the wall of the shaft to fix a position of the first vessel with respect to said shaft; said suction openings comprise longitudinal slots distributed over a circumference of said shaft; said shaft has an enlargement at the front end thereof; additional suction openings are arranged in a wall of said enlargement; and the shaft's suction openings are arranged in said shaft adjacent to said enlargement.
Claim 3
Dependent Claim
12 words
An instrument as defined in claim 1, wherein: said enlargement is spherical.
Claim 4
Dependent Claim
12 words
An instrument as defined in claim 1, wherein: said enlargement is barrel-shaped.
Claim 5
Dependent Claim
27 words
An instrument as defined in claim 1, wherein: said shaft tapers in relation to its normal outer diameter in an area of transition continuing into said enlargement.
Claim 6
Dependent Claim
15 words
An instrument as defined in claim 1, wherein: said shaft is bent at an angle.
Claim 7
Dependent Claim
31 words
An instrument as defined in claim 1, wherein: said enlargement has a flow-through channel which extends transversely to a longitudinal axis of said shaft and does not communicate with said shaft.
Claim 8
Dependent Claim
13 words
An instrument as defined in claim 6, wherein: said flow-through channel is closable.
Claim 9
Dependent Claim
13 words
An instrument as defined in claim 1, wherein: the instrument comprises resterilizable material.
Claim 10
Dependent Claim
16 words
An instrument as defined in claim 1, wherein: the instrument is designed as a disposable component.
Claim 11
Dependent Claim
20 words
A set of instruments as defined in claim 1, wherein: the instruments of one set have enlargements of different diameters.
Claim 12
Dependent Claim
40 words
An instrument as defined in claim 1, wherein: said longitudinal slots are evenly distributed over said circumference to provide a guide to a surgeon for providing punctures in the first vessel for suturing the first vessel to a second vessel.
Claim 13
Dependent Claim
37 words
An instrument as defined in claim 1, wherein: such enlargement is adapted to be inserted into a side opening of a second vessel to fix a position of the second vessel with respect to the first vessel.
Claim 14
Dependent Claim
51 words
An instrument as defined in claim 12, wherein: the shaft is positionable in the first vessel, and the enlargement is positionable in the second vessel such that edges of the first and second vessels are turned over outwards from the shaft and brought into a surface-to-surface position to be joined together.
Claim 15
Dependent Claim
139 words
A surgical instrument for performing vascular anastomosis, comprising: a tubular shaft closed at a front end thereof, with an outer diameter which enables the shaft to be introduced into a first vessel, suction openings in a wall of said shaft in an area of the front end thereof, and a suction connection on said shaft at a distance from the front end thereof, wherein: said suction openings communicate with the suction connection to provide a suction for drawing in a wall of the first vessel against the wall of the shaft to fix a position of the first vessel with respect to said shaft; said shaft has an enlargement at the front end thereof; and said enlargement has a closable flow-through channel which extends transversely to a longitudinal axis of said shaft and does not communicate with said shaft.
Claim 16
Dependent Claim
139 words
A surgical instrument for performing vascular anastomosis, comprising: a tubular shaft closed at a front end thereof, with an outer diameter which enables the shaft to be introduced into a first vessel, suction openings in a wall of said shaft in an area of the front end thereof, and a suction connection on said shaft at a distance from the front end thereof, wherein: said suction openings communicate with the suction connection to provide a suction for drawing in a wall of the first vessel against the wall of the shaft to fix a position of the first vessel with respect to said shaft; said shaft has an enlargement at the front end thereof; and said enlargement has a closable flow-through channel which extends transversely to a longitudinal axis of said shaft and does not communicate with said shaft.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-02-28 | 2003-08-30 | 2004-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-28 | 2007-08-30 | 2008-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-28 | 2011-08-30 | 2012-02-29 | $7700.00 | Window Closed / Lapsed |