US Patent No: 5,174,300

Number of patents in Portfolio can not be more than 2000

Endoscopic surgical instruments having rotatable end effectors

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Abstract

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Medical instruments are provided having end effectors and end effector actuator apparatus which are rotatable relative to the end effectors. The instruments generally include a tube which is typically coupled to the end effectors via a clevis around which the end effectors pivot, a push rod extending through the tube and coupled to the end effectors, an actuator apparatus engaging the tube and the push rod and imparting reciprocal axial motion to the push rod relative to the tube, and end effectors. The actuator apparatus includes a sleeve, spring, handle, and lever arm. The sleeve is movable along the longitudinal axis of the tube against a biasing force of the spring, but is restrained from rotating about the tube. The sleeve has a locking element on its proximal end. The handle surrounds and rotatably engages the proximal end of the tube and has a locking element on its distal end which mates with the locking element of the sleeve and disengages therewith when the sleeve is advanced along the tube. Upon disengagement, the tube, push rod, and end effectors can be rotated. The lever arm pivotally engages the handle and is coupled to the push rod such that pivotal movement of the lever arm relative to the handle effects movement of the push rod relative to the tube and pivotal movement of the end effectors. To decouple rotation of the push rod from the lever arm, a generally spherical push rod engaging element is provided in a generally cylindrical bore of the lever arm.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SYMBIOSIS CORPORATIONMIAMI, FL146

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bales, Thomas O Coral Gables, FL 115 9147
Murphy, Gregory J Sunrise, FL 11 985
Scarfone, Frank A Boca Raton, FL 28 2103
Slater, Charles R Fort Lauderdale, FL 130 10060
Smith, Kevin W Miami, FL 321 19621

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
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8,361,066 Electrical ablation devices 4 2009
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7,318,610 Picking tool with changeable end effector 0 2005
 
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7,063,697 Bipolar endoscopic surgical scissor blades and instrument incorporating the same 66 2003
 
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DVL ACQUISITION SUB, INC. (13)
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Biopsys Medical (1)
* 5,526,822 Method and apparatus for automated biopsy and collection of soft tissue 531 1994
 
EDWARDS LIFESCIENCES CORPORATION (4)
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Tuebingen Scientific Surgical Products, GmbH (7)
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SMITH & NEPHEW, INC. (4)
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6,270,508 End effector and instrument for endoscopic and general surgery needle control 413 1999
 
TUEBINGEN SCIENTIFIC MEDICAL GMBH (2)
* 7,674,255 Surgical instrument 177 2004
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CONVERTALIGHT LLC (1)
D632786 Handle for a medical instrument 9 2009
 
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8,277,475 Laparoscopic scissors 2 2009
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8,523,893 Laparoscopic scissors 0 2011
8,518,070 Laparoscopic scissors 0 2012
8,721,670 Laparoscopic scissors 0 2013
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6,770,078 Movable knee implant and methods therefor 212 2001
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7,806,897 Knee arthroplasty and preservation of the quadriceps mechanism 38 2005
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7,708,740 Method for total knee arthroplasty and resecting bone in situ 36 2005
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8,425,522 Joint replacement method 36 2010
8,784,495 Segmental knee arthroplasty 3 2010
9,101,443 Methods for robotic arthroplasty 2 2012
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8,105,320 Methods for replaceable end-effector cartridges 13 2010
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8,790,243 Flexible wrist for surgical tool 2 2011
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8,452,447 Tool grip calibration for robotic surgery 11 2011
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* Cited By Examiner