Patent US5535934A successfully refreshed from Google Patents.
US5535934A
Expired / Lapsed
US
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Identification device for surgical instrument
Assignee: Ethicon Endo Surgery Inc
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Filing: 1995-06-07
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Granted: 1996-07-16
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Expires: 2015-06-07
Abstract
Abstract A device is provided for identifying certain characteristics of an end piece or end effector of a surgical instrument. A preferred embodiment provides a surgical stapling instrument having an electrical circuit contained on the stapling cartridge which is capable of indicating cartridge type and/or status (i.e., with or without staples) when a voltage or current is applied to the circuit.
Inventors
- 👤 Anthony A. Boiarski
- 👤 Mark T. Byrne
- 👤 Warren P. Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:16
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/072; A61B17/07207; A61B90/00; A61B90/90; A61B90/98; A61B2017/00017; A61B2017/00022; A61B2017/00026; A61B2017/0003; A61B2017/00115; A61B2017/0046; A61B2017/00477; A61B2017/00482; A61B2017/07214; A61B2017/07285; A61B90/08; A61B2090/0807; A61B2090/0811; A61M; A61M2205/00; A61M2205/60; A61M2205/6018; A61M2205/6063
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
27 words
A cartridge containing staples for a surgical stapling instrument comprising an electrical device for indicating cartridge firing status, wherein said electrical device comprises an electrically activated fuse.
Claim 2
Dependent Claim
27 words
A cartridge containing staples for a surgical stapling instrument comprising an electrical device for indicating cartridge firing status, wherein said electrical device comprises an electrically activated fuse.
Claim 3
Dependent Claim
17 words
The cartridge of claim 1 wherein said fuse has a predetermined resistance indicating a corresponding cartridge type.
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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) | 1999-07-16 | 2000-01-15 | 2000-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-16 | 2004-01-15 | 2004-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-16 | 2008-01-15 | 2008-07-16 | $7700.00 | Window Closed / Lapsed |