US5282807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic stapler for laparoscopic procedure with selective cutter, nontraumatic jaws and suction irrigator
Assignee: NuSurg Medical Inc
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Filing: 1992-01-24
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Granted: 1994-02-01
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Expires: 2012-01-24
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 nontraumatic 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 suitable for hydro dissection is also provided at the tip of the apparatus. This device permits surgeons to dissect, hydro dissect, 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
2026-10-23 20:10
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/0682; A61B17/12; A61B17/128; A61B17/1285; A61B17/00234; A61B17/32; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
116 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 nontraumatic jaws adapted to close and bend staples; said jaws each including a staple channel and a nontraumatic grasping surface adjacent said channels; a cutter adaptor to move relative to 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
116 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 nontraumatic jaws adapted to close and bend staples; said jaws each including a staple channel and a nontraumatic grasping surface adjacent said channels; a cutter adaptor to move relative to 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
26 words
The stapler claimed in claim 1 further comprising a tube extending through said shaft to said tip portion adaptor to connect to a hydro dissection device.
Claim 4
Dependent Claim
17 words
The stapler claimed in claim 1 wherein said jaws include a pointed tip adapted to dissect tissue.
Claim 5
Dependent Claim
67 words
A laparoscopic dissecting instrument comprising a grip portion, a tip portion and a shaft portion; said tip portion including a pair of nontraumatic jaws; said tip portion further including a hydro dissection tube; wherein said grip portion includes a means to close said jaws, and wherein said tip portion includes a cutter operated at said grip portion, said cutter adapted to cut tissue held between said jaws.
Claim 6
Dependent Claim
67 words
A laparoscopic dissecting instrument comprising a grip portion, a tip portion and a shaft portion; said tip portion including a pair of nontraumatic jaws; said tip portion further including a hydro dissection tube; wherein said grip portion includes a means to close said jaws, and wherein said tip portion includes a cutter operated at said grip portion, said cutter adapted to cut tissue held between said jaws.
Claim 7
Dependent Claim
49 words
A laparoscopic dissecting stapler comprising a grip portion, a tip portion and a shaft portion; said tip portion including a pair of nontraumatic jaws; said tip portion further including a hydrodissection tube; means to advance staples between said jaws; wherein said grip portion includes means to close said jaws.
Claim 8
Dependent Claim
49 words
A laparoscopic dissecting stapler comprising a grip portion, a tip portion and a shaft portion; said tip portion including a pair of nontraumatic jaws; said tip portion further including a hydrodissection tube; means to advance staples between said jaws; wherein said grip portion includes means to close said jaws.
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) | 1997-01-31 | 1997-08-02 | 1998-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-31 | 2001-08-02 | 2002-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-31 | 2005-08-02 | 2006-02-01 | $7700.00 | Window Closed / Lapsed |