Electrosurgical control for a trocar
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 13, 1995
Issued Date -
N/A
app pub date -
Aug 30, 1993
filing date -
Jan 21, 1992
priority date (Note) -
In Force
status (Latency Note)
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
Next PAIR Update Scheduled on [ ] |
Importance
US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
An electrosurgical control for a trocar has a trocar with a cannula with a stylet coaxially fit therein. The stylet is movable relative to the cannula along a common axis. The trocar is shaped for insertion in a direction generally along the axis through tissue in a puncture procedure with its stylet. A distal end and a proximal end on the elongate cannula so the distal end enters the tissue while the proximal end remains outside. A tip on the stylet end, near the distal end of the cannula, normally extends therebeyond in position to puncture the tissue. The stylet has an energy supply passing from the tip to its opposite end and moves reciprocally relative to the cannula so the tip extends or is fully within the cannula. An electrosurgical generator provides energy to the opposite end of the stylet and an electrosurgically active device is a part of the tip and connects to the energy supply. A sampling circuit connected to the electrosurgically active device and responds to changes in energy passing through the energy supply as a function of tissue cut by the electrosurgically active device. The sampling circuit provides a signal relative to the energy supplied and a measuring circuit analyzes the signal to instantly isolate a specific signal therefrom indicative of a significant change in the energy when the tip is not in tissue. A comparator has a settable predetermined threshold amount of energy at which the electrosurgical generator no longer supplies energy. A peak energy level is set by a knob and is compared to the varying signals from the sampling circuit. A switch responds to the comparator to disconnect the energy when the threshold is exceeded.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- TYCO HEALTHCARE GROUP AG
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Klicek, Michael S | Boulder, CO | 14 | 20238 |
Cited Art Landscape
- No Cited Art to Display
Patent Citation Ranking
Forward Cite Landscape
- No Forward Cites to Display
Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text
Legal Events
Matter Detail
Update Public Data Dismiss Edit SaveRenewals Detail
Edit SaveNote
The template below is formatted to ensure compatibility with our system.
Provide tags with | separated like (tags1|tags2).
Maximum length is 128 characters for Customer Application No
Mandatory Fields * - 'MatterType','AppType','Country','Title','SerialNo'.
Acceptable Date Format - 'MM/DD/YYYY'.
Acceptable Filing/App Types -
- Continuation/Divisional
- Original
- Paris Convention
- PCT National
- With Priority
- EP Validation
- Provisional Conversion
- Reissue
- Provisional
- Foreign Extension
Acceptable Status -
- Pending
- Abandoned
- Unfiled
- Expired
- Granted
Acceptable Matter Types -
- Patent
- Utility Model
- Supplemental Protection Certificate
- Design
- Inventor Certificate
- Plant
- Statutory Invention Reg
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Success
E-mail has been sent successfully.
Failure
Some error occured while sending email. Please check e-mail and try again!
PAIR load has been initiated
A preliminary load of cached data will be loaded soon. Current PAIR data will be loaded within twenty four hours.
File History PDF
Thank you for your purchase! The File Wrapper for Patent Number 5423809 will be available within the next 24 hours.
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully
Important Notes on Latency of Status data
Please note there is up to 60 days of latency in this Status indicator for certain status conditions. You can obtain up-to-date Status indicator readings by ordering PAIR for the file.
An application with the status "Published" (which means it is pending) may be recently abandoned, but not yet updated to reflect its abandoned status. However, an application filed less than one year ago is unlikely to be abandoned.
A patent with the status "Granted" may be recently expired, but not yet updated to reflect its expired status. However, it is highly unlikely a patent less than 3.5 years old would be expired.
An application with the status "Abandoned" is almost always current, but there is a small chance it was recently revived and the status not yet updated.
Important Note on Priority Date data
This priority date is an estimated earliest priority date and is purely an estimation. This date should not be taken as legal conclusion. No representations are made as to the accuracy of the date listed. Please consult a legal professional before relying on this date.
We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.