US5104394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic stapler for laparoscopic procedure with selective cutter and suction irrigator
Assignee: NuSurg Medical Inc
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Filing: 1990-11-05
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Granted: 1992-04-14
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Expires: 2010-11-05
Abstract
Abstract An improved surgical stapler is disclosed which is particularly suitable for use in laparoscopic procedures. The stapler includes a handle and an elongated shaft and jaws at its distal end which are adapted to close staples. This improved stapler further includes a cutter which is adapted to cut items grasped by the jaws. The jaws are actuated independently of the stapling mechanism. This substantially improves the versatility of this device. A suctioning tube is also provided at the tip of the apparatus. This device permits surgeons to staple and subsequently selectively cut without removing the instrument.
Inventors
- 👤 Dennis J. Knoepfler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:08
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/128; A61B17/1285; A61B17/32; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
106 words
A surgical stapler for use in laparoscopic surgery comprising a grip portion, a tip portion and a shaft portion extending between the grip portion and the tip portion said tip portion including a staple advancing means and a pair of jaws adapted to close and bend staples and to act as a clamp; a cutter adapted to move forwardly along said jaws to cut tissue held by said jaws; said grip portion comprising means to advance said cutter; means to activate said staple advancing means and means to independently close said jaws both when a staple is in place and when no staple is in place.
Claim 2
Dependent Claim
106 words
A surgical stapler for use in laparoscopic surgery comprising a grip portion, a tip portion and a shaft portion extending between the grip portion and the tip portion said tip portion including a staple advancing means and a pair of jaws adapted to close and bend staples and to act as a clamp; a cutter adapted to move forwardly along said jaws to cut tissue held by said jaws; said grip portion comprising means to advance said cutter; means to activate said staple advancing means and means to independently close said jaws both when a staple is in place and when no staple is in place.
Claim 3
Dependent Claim
19 words
The stapler claimed in claim 1 further comprising a vacuum tube extending through said shaft to said tip portion.
Claim 4
Dependent Claim
18 words
The stapler claimed in claim 1 wherein said cutter advancing means is spring biased in a retracted position.
Claim 5
Dependent Claim
85 words
A laparoscopic cutting instrument comprising a grip portion, a tip portion and a shaft portion; said tip portion including a spring biased pair of jaws operable by means of a collar slidably engaging said jaws; a cutter comprising an elongated pusher extending the length of said shaft portion and have a forward most cutting tip adapted to slide along said jaws; wherein said grip portion includes means to slide said collar forwardly to close said jaws and means to move said pusher forwardly and rearwardly.
Claim 6
Dependent Claim
85 words
A laparoscopic cutting instrument comprising a grip portion, a tip portion and a shaft portion; said tip portion including a spring biased pair of jaws operable by means of a collar slidably engaging said jaws; a cutter comprising an elongated pusher extending the length of said shaft portion and have a forward most cutting tip adapted to slide along said jaws; wherein said grip portion includes means to slide said collar forwardly to close said jaws and means to move said pusher forwardly and rearwardly.
Claim 7
Dependent Claim
16 words
The cutting instrument claimed in claim 4 further comprising means to advance staples between said jaws.
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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) | 1995-04-14 | 1995-10-14 | 1996-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-14 | 1999-10-14 | 2000-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-14 | 2003-10-14 | 2004-04-14 | $7700.00 | Window Closed / Lapsed |