Endoscopic instruments having distally extending lever mechanisms
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United States of America Patent
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Oct 4, 1994
Grant Date -
N/A
app pub date -
Jul 13, 1993
filing date -
Jul 13, 1993
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Abstract
An endoscopic surgical instrument includes a proximal handle with a distally extending lever actuator. The handle and lever actuator are coupled by a tube and push rod to a pair of distal end effectors. The proximal end of the tube is mounted in a bushing having a flange which is freely rotatable within a flange receiving recess in the handle. The proximal end of the push rod extends proximally beyond the bushing and is coupled to the lever actuator by a ball and set screw coupling. The lever actuator preferably extends at least four inches distally from the proximal end of the handle and includes a finger ring near its distal end. The tube is preferably provided with a ferrule immediately distal of the handle for rotating the tube and push rod about the longitudinal axis of the instrument. The ferrule is preferably provided with a distal extension having an annular notch for locking engagement inside another endoscopic instrument. The lever actuator imparts a force to the end effectors which is magnified relative to the force applied to the actuator. The distal extension of the lever actuator and the finger ring allow the instrument to be operated with one finger while the instrument is grasped by the ferrule or mounted inside another endoscopic instrument.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- SYMBIOSIS CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Gottlieb, Saul | Miami, FL | 37 | 5002 |
Kortenbach, Jurgen A | Miami Springs, FL | 23 | 17128 |
McBrayer, Michael S | Miami, FL | 8 | 3154 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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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 |
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