US5562239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identification device for surgical instrument
Assignee: Ethicon Endo Surgery Inc
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Filing: 1995-06-07
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Granted: 1996-10-08
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Expires: 2015-06-07
Abstract
Abstract A device is provided for sensing the firing of a staple cartridge inserted into an end piece or end effector of a surgical instrument. The stapling instrument includes a magnetic sensing device arranged to sense the advancement of a knife or staple driver.
Inventors
- 👤 Anthony A. Boiarski
- 👤 Mark T. Byrne
- 👤 Warren P. Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:17
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: 5
Claim 1
Independent Claim
71 words
A surgical stapling instrument comprising: a removable cartridge containing staples; a driving means for firing said staples; and a sensing means for detecting instrument firing, said sensing means capable of providing an electrical signal indicating an instrument firing wherein said sensing means comprises a magnetic element and a magnetic sensor, said magnetic sensor arranged to sense said magnetic element when an instrument firing has occurred and to provide a corresponding signal.
Claim 2
Dependent Claim
71 words
A surgical stapling instrument comprising: a removable cartridge containing staples; a driving means for firing said staples; and a sensing means for detecting instrument firing, said sensing means capable of providing an electrical signal indicating an instrument firing wherein said sensing means comprises a magnetic element and a magnetic sensor, said magnetic sensor arranged to sense said magnetic element when an instrument firing has occurred and to provide a corresponding signal.
Claim 3
Dependent Claim
33 words
The surgical stapling instrument of claim 1 wherein said corresponding signal indicates to a control unit that a firing has occurred and the control unit counts the number of firings which have occurred.
Claim 4
Dependent Claim
47 words
The surgical instrument of claim 1 further comprising a control unit, and means for communicating a signal from said sensors to said control unit; wherein said control unit is capable of interpreting said signal and preventing firing of instrument when the signal indicates an inappropriate firing condition.
Claim 5
Dependent Claim
18 words
The surgical stapling instrument of claim 1 wherein said cartridge is capable of firing staples more than once.
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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) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |