Patents by Inventor David Okihisa
David Okihisa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8114120Abstract: A surgical instrument can include tips and an actuation rod having a pin and slot design where the driving slots are moved from the tips to the actuation rod in one aspect of the invention. As a result, the back end of each blade or tip can be dramatically reduced in area so that during full deflection, very little or no part of the blade or tip extends beyond the outside diameter of the shaft. In addition, the depth of each slot can be varied such that during actuation, increased tension can be put on the blades or tips throughout the cut.Type: GrantFiled: August 25, 2009Date of Patent: February 14, 2012Assignee: Applied Medical Resources CorporationInventors: Gary M. Johnson, Russell E. Ahlberg, David Okihisa, Gregory I. Bak-Boychuck
-
Publication number: 20090318954Abstract: The invention is directed to a pin and slot design where the driving slots are moved from the tips to the actuation rod in one aspect of the invention. As a result, the back end of each blade or tip can be dramatically reduced in area so that during full deflection, very little or no part of the blade or tip extends beyond the outside diameter of the shaft. This ensures that nothing catches on the blades or tips during grasper use and the shrink tubing found on the scissors would not be deformed. This can be done because the area for the slots is not needed. Moreover, the usable area for the drive slots on the blade or tip of the actuation rod is maximized to the overall diameter of the outer tube or shaft which provides additional leverage to the blades or tips. In addition, the depth of each slot can be varied such that during actuation, increased tension can be put on the blades or tips throughout the cut.Type: ApplicationFiled: August 25, 2009Publication date: December 24, 2009Applicant: Applied Medical Resources CorporationInventors: Gary M. Johnson, Russell E. Ahlberg, David Okihisa, Gregory I. Bak-Boychuk
-
Patent number: 7578832Abstract: The invention is directed to a pin and slot design where the driving slots are moved from the tips to the actuation rod in one aspect of the invention. As a result, the back end of each blade or tip can be dramatically reduced in area so that during full deflection, very little or no part of the blade or tip extends beyond the outside diameter of the shaft. This ensures that nothing catches on the blades or tips during grasper use and the shrink tubing found on the scissors would not be deformed. This can be done because the area for the slots is not needed. Moreover, the usable area for the drive slots on the blade or tip of the actuation rod is maximized to the overall diameter of the outer tube or shaft which provides additional leverage to the blades or tips. In addition, the depth of each slot can be varied such that during actuation, increased tension can be put on the blades or tips throughout the cut.Type: GrantFiled: February 17, 2005Date of Patent: August 25, 2009Assignee: Applied Medical Resources CorporationInventors: Gary M. Johnson, Russell E. Ahlberg, David Okihisa, Gregory I. Bak-Boychuk
-
Publication number: 20090131975Abstract: The invention is directed to a surgical instrument comprising an elongate tube extending along an axis including a camming rod and an actuation mechanism operably connected to the camming rod, the camming rod having a camming pin and a camming projection; a first jaw spine having a first cam slot, a first interior camming surface, and a first exterior camming surface; and a second jaw spine having a second cam slot, a second interior camming surface, and a second exterior camming surface, the second jaw spine pivotally connected to the first jaw spine at a common pivot pin operably connected to the elongate tube to open and close the jaw spines in response to movement of the actuation mechanism. The camming pin rides along the first and second interior camming surfaces and operates to close the jaw spines when the camming rod is moved proximally.Type: ApplicationFiled: January 26, 2009Publication date: May 21, 2009Applicant: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Scott V. Taylor, David Okihisa, Gregory I. Bak-Boychuk, Emil Karapetian, John Stout
-
Patent number: 7494501Abstract: The invention is directed to a surgical instrument comprising an elongate tube extending along an axis including a camming rod and an actuation mechanism operably connected to the camming rod, the camming rod having a camming pin and a camming projection; a first jaw spine having a first cam slot, a first interior camming surface, and a first exterior camming surface; and a second jaw spine having a second cam slot, a second interior camming surface, and a second exterior camming surface, the second jaw spine pivotally connected to the first jaw spine at a common pivot pin operably connected to the elongate tube to open and close the jaw spines in response to movement of the actuation mechanism. The camming pin rides along the first and second interior camming surfaces and operates to close the jaw spines when the camming rod is moved proximally.Type: GrantFiled: November 12, 2004Date of Patent: February 24, 2009Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Scott V. Taylor, David Okihisa, Gregory I. Boychuck, Emil Karapetian, John Stout
-
Publication number: 20060161190Abstract: The invention is directed to a surgical instrument including a handle assembly and a shaft assembly. The handle assembly further includes a fixed handle and a pivoting handle. The shaft assembly extends from the handle assembly and further includes an outer tube and an inner actuation rod that slides coaxially with the outer tube. The shaft assembly includes a rotatable knob to provide 360° rotation. The actuation rod has a proximal end and a distal end; the proximal end has a ball end that couples with the pivoting handle to form a rotatable ball-and-socket joint. The outer tube is formed of plastic and fits over the actuation rod to function as an electrical insulator.Type: ApplicationFiled: January 18, 2006Publication date: July 20, 2006Inventors: Donald Gadberry, Gary Johnson, Jeremy Albrecht, David Okihisa, Said Hilal, Arkadiusz Strokosz
-
Publication number: 20050192598Abstract: The invention is directed to a pin and slot design where the driving slots are moved from the tips to the actuation rod in one aspect of the invention. As a result, the back end of each blade or tip can be dramatically reduced in area so that during full deflection, very little or no part of the blade or tip extends beyond the outside diameter of the shaft. This ensures that nothing catches on the blades or tips during grasper use and the shrink tubing found on the scissors would not be deformed. This can be done because the area for the slots is not needed. Moreover, the usable area for the drive slots on the blade or tip of the actuation rod is maximized to the overall diameter of the outer tube or shaft which provides additional leverage to the blades or tips. In addition, the depth of each slot can be varied such that during actuation, increased tension can be put on the blades or tips throughout the cut.Type: ApplicationFiled: February 17, 2005Publication date: September 1, 2005Inventors: Gary Johnson, Russell Ahlberg, David Okihisa, Gregory Bak-Boychuk
-
Publication number: 20050149087Abstract: The invention is directed to a pair of laparoscopic scissors, comprising a pair of blades connected at a pivot, each of the blades having a length, a tip portion, a body portion, an outer surface, an inner surface and a cutting edge, the cutting edge forming an angle with the outer surface along the length of the blade such that tension during a cutting operation at the tip portion is about the same as tension at the body portion during the cutting operation. The angle formed may be greater at the tip portion which continuously decreases over the length of the blade. The tip portion may have a first body thickness and the body portion may have a second body thickness different from the first body thickness. During the cutting operation, the blades progressively move over each other to provide a point contact along the cutting edges.Type: ApplicationFiled: October 29, 2004Publication date: July 7, 2005Inventors: Russell Ahlberg, Gary Johnson, David Okihisa
-
Publication number: 20050101991Abstract: The invention is directed to a surgical instrument comprising an elongate tube extending along an axis including a camming rod and an actuation mechanism operably connected to the camming rod, the camming rod having a camming pin and a camming projection; a first jaw spine having a first cam slot, a first interior camming surface, and a first exterior camming surface; and a second jaw spine having a second cam slot, a second interior camming surface, and a second exterior camming surface, the second jaw spine pivotally connected to the first jaw spine at a common pivot pin operably connected to the elongate tube to open and close the jaw spines in response to movement of the actuation mechanism. The camming pin rides along the first and second interior camming surfaces and operates to close the jaw spines when the camming rod is moved proximally.Type: ApplicationFiled: November 12, 2004Publication date: May 12, 2005Inventors: Russell Ahlberg, Scott Taylor, David Okihisa, Gregory Bak-Boychuk, Emil Karapetian, John Stout
-
Patent number: D748259Type: GrantFiled: December 29, 2014Date of Patent: January 26, 2016Assignee: Applied Medical Resources CorporationInventors: David Okihisa, Duy Nguyen, Kent Wilson, Ryan Pope, Mark Leroux, Patrick Elliott, Jeremy Albrecht