Patents by Inventor Russell E. Ahlberg
Russell E. Ahlberg 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: 9669153Abstract: A process of making a tack-free gel is disclosed comprising the steps of providing a mold defining a mold cavity, the mold cavity comprising a plastic material; pouring or injecting a molten gel having a high molding temperature into the mold cavity; and forming the tack-free gel as a thin layer of plastic of the mold cavity is melted over the gel. The forming step further comprises cooling the gel from the molten state to a solidified state. The melting temperature of the plastic material is lower than the molding temperature of the gel; and the higher the temperature differential, the greater the melting of the plastic material and the thicker the layer of the plastic material on the surface of the gel. The mold may be formed of low-density polyethylene (LDPE).Type: GrantFiled: March 12, 2014Date of Patent: June 6, 2017Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Payam Adlparvar, Scott V. Taylor, Matthew A. Wixey, Daniel Martinez, John R. Brustad
-
Patent number: 9474548Abstract: A shielded bladed obturator is provided with a shield lockout that prevents retraction of a shield to expose a blade for cutting. The shield lockout in one aspect has a rotational switch interacting with a longitudinal extending shield to lock and unlock the shield. A blade exposure and coverage system is also provided.Type: GrantFiled: February 24, 2014Date of Patent: October 25, 2016Assignee: Applied Medical Resources CorporationInventors: Andrew N. Hoan, Noreen Jue, Luca Pesce, Russell E. Ahlberg
-
Patent number: 9289213Abstract: A surgical clip applier includes a train of clips disposed in a plane with a single clip removed from the train of clips and disposed in a staging position. A pair of jaws are adapted to receive the single clip from the staging position by operation of a jaw loader moveable outside the plane of the train of clips. In an associate method, a handle assembly is provided which is moveable in an open stroke and a closed stroke. A source of surgical clips are provided along with a pair of jaws which are adapted to receive one of the clips as the handle assembly is moved in an open stroke, the jaws are open to receive the clip. Following the opening of the jaws, a jaw loader is extended to a position between the jaws to move the clip into the jaws. The handle assembly is moveable in a closed stroke during which the jaws are closed to crimp the clip. Prior to this closing of the jaws, the jaw loader is retracted from the position between the jaws leaving the clip in the jaws.Type: GrantFiled: September 10, 2013Date of Patent: March 22, 2016Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Steven R. Anderson, Edward E. Dolendo, Vincent C. Tangherlini
-
Patent number: 9161770Abstract: A surgical instrument can comprise an elongate tube including a camming rod and an actuation mechanism operably connected to the camming rod; a first jaw spine having a first cam slot; and a second jaw spine having a second cam slot, the second jaw spine pivotally connected to the first jaw spine at a common pivot pin connected to the elongate tube. A camming pin rides along first and second interior camming surfaces and closes the jaw spines when the camming rod moves proximally. When the camming rod moves distally, a camming projection rides on first and second exterior camming surfaces on proximal sides of the first and second jaw spines and opens the jaw spines. One camming surface on each jaw spine facilitates closing the jaw spines while the other camming surface on each jaw spine facilitates opening the jaw spines. These two camming surfaces can be widely separated.Type: GrantFiled: September 30, 2013Date of Patent: October 20, 2015Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Scott V. Taylor, David T. Okihisa, Gregory I. Bak-Boychuk, Emil Karapetian, John Stout
-
Publication number: 20140236206Abstract: A shielded bladed obturator is provided with a shield lockout that prevents retraction of a shield to expose a blade for cutting. The shield lockout in one aspect has a rotational switch interacting with a longitudinal extending shield to lock and unlock the shield. A blade exposure and coverage system is also provided.Type: ApplicationFiled: February 24, 2014Publication date: August 21, 2014Applicant: Applied Medical Resources CorporationInventors: Andrew N. Hoan, Noreen Jue, Luca Pesce, Russell E. Ahlberg
-
Publication number: 20140224416Abstract: A process of making a tack-free gel is disclosed comprising the steps of providing a mold defining a mold cavity, the mold cavity comprising a plastic material; pouring or injecting a molten gel having a high molding temperature into the mold cavity; and forming the tack-free gel as a thin layer of plastic of the mold cavity is melted over the gel. The forming step further comprises cooling the gel from the molten state to a solidified state. The melting temperature of the plastic material is lower than the molding temperature of the gel; and the higher the temperature differential, the greater the melting of the plastic material and the thicker the layer of the plastic material on the surface of the gel. The mold may be formed of low-density polyethylene (LDPE).Type: ApplicationFiled: March 12, 2014Publication date: August 14, 2014Applicant: APPLIED MEDICAL RESOURCES CORPORATIONInventors: Russell E. Ahlberg, Payam Adlparvar, Scott V. Taylor, Matthew A. Wixey, Daniel Martinez, John R. Brustad
-
Patent number: 8801741Abstract: A shielded bladed obturator is provided with a shield lockout that prevents retraction of a shield to expose a blade for cutting. The shield lockout in one aspect has a rotational switch interacting with a longitudinal extending shield to lock and unlock the shield. A blade exposure and coverage system is also provided.Type: GrantFiled: May 3, 2007Date of Patent: August 12, 2014Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Martin Ponisio, Luca Pesce
-
Patent number: 8703034Abstract: A process of making a tack-free gel is disclosed comprising the steps of providing a mold defining a mold cavity, the mold cavity comprising a plastic material; pouring or injecting a molten gel having a high molding temperature into the mold cavity; and forming the tack-free gel as a thin layer of plastic of the mold cavity is melted over the gel. The forming step further comprises cooling the gel from the molten state to a solidified state. The melting temperature of the plastic material is lower than the molding temperature of the gel; and the higher the temperature differential, the greater the melting of the plastic material and the thicker the layer of the plastic material on the surface of the gel. The mold may be formed of low-density polyethylene (LDPE).Type: GrantFiled: August 23, 2011Date of Patent: April 22, 2014Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Payam Adlparvar, Scott V. Taylor, Matthew A. Wixey, Daniel Martinez, John R. Brustad
-
Publication number: 20140100601Abstract: A surgical instrument can comprise an elongate tube including a camming rod and an actuation mechanism operably connected to the camming rod; a first jaw spine having a first cam slot; and a second jaw spine having a second cam slot, the second jaw spine pivotally connected to the first jaw spine at a common pivot pin connected to the elongate tube. A camming pin rides along first and second interior camming surfaces and closes the jaw spines when the camming rod moves proximally. When the camming rod moves distally, a camming projection rides on first and second exterior camming surfaces on proximal sides of the first and second jaw spines and opens the jaw spines. One camming surface on each jaw spine facilitates closing the jaw spines while the other camming surface on each jaw spine facilitates opening the jaw spines. These two camming surfaces can be widely separated.Type: ApplicationFiled: September 30, 2013Publication date: April 10, 2014Applicant: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Scott V. Taylor, David T. Okihisa, Gregory I. Bak-Boychuk, Emil Karapetian, John Stout
-
Patent number: 8657843Abstract: A shielded bladed obturator is provided with a shield lockout that prevents retraction of a shield to expose a blade for cutting. The shield lockout in one aspect has a rotational switch interacting with a longitudinal extending shield to lock and unlock the shield. A blade exposure and coverage system is also provided.Type: GrantFiled: April 18, 2008Date of Patent: February 25, 2014Assignee: Applied Medical Resources CorporationInventors: Andrew N. Hoan, Noreen Jue, Luca Pesce, Russell E. Ahlberg
-
Publication number: 20140012291Abstract: A surgical clip applier includes a train of clips disposed in a plane with a single clip removed from the train of clips and disposed in a staging position. A pair of jaws are adapted to receive the single clip from the staging position by operation of a jaw loader moveable outside the plane of the train of clips. In an associate method, a handle assembly is provided which is moveable in an open stroke and a closed stroke. A source of surgical clips are provided along with a pair of jaws which are adapted to receive one of the clips as the handle assembly is moved in an open stroke, the jaws are open to receive the clip. Following the opening of the jaws, a jaw loader is extended to a position between the jaws to move the clip into the jaws. The handle assembly is moveable in a closed stroke during which the jaws are closed to crimp the clip. Prior to this closing of the jaws, the jaw loader is retracted from the position between the jaws leaving the clip in the jaws.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Applicant: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Steven R. Anderson, Edward E. Dolendo, Vincent C. Tangherlini
-
Patent number: 8597250Abstract: A stability assembly for a trocar cannula includes a conical stability member, a base, and a cannula retention member. The base has a passage defining an inner surface, and a constriction in the passage. The cannula retention member is rotatable within the passage, and advancement of the cannula retention member over the constriction reduces the inner diameter of the passage to restrain a cannula in the passage. Various latch mechanisms including interface surfaces on the base and the cannula retention member can be used in the stability assembly to secure the stability assembly around a cannula. Various conical stability members can be used in the stability assembly.Type: GrantFiled: April 24, 2012Date of Patent: December 3, 2013Assignee: Applied Medical Resources CorporationInventors: David T. Okihisa, Russell E. Ahlberg, Gary M. Johnson, Jeremy J. Albrecht, Michael L. Michaud, Benjamin A. Gianneschi
-
Patent number: 8590428Abstract: A 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 is provided. 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. In another aspect of the invention, a process of manufacturing the pair of scissors of the invention is disclosed, comprising the steps of forming the blades into a desired shape with wire EDM processes from a pre-hardened block of material, and sharpening the cutting edges of the blades.Type: GrantFiled: September 1, 2009Date of Patent: November 26, 2013Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Gary M. Johnson, David T. Okihisa
-
Patent number: 8545534Abstract: A surgical instrument comprising an elongate tube extending along an axis includes an actuation mechanism; a first jaw spine; and a second jaw spine the second jaw spine pivotally connected to the first jaw spine at a common pivot pin to open and close the jaw spines in response to movement of the actuation mechanism. The jaw spines can be formed of a metallic material and are overmolded with an atraumatic plastic material. By overmolding the plastic onto the metal spine, an atraumatic outer surface can be formed of the plastic material along with a high degree of detail.Type: GrantFiled: January 26, 2009Date of Patent: October 1, 2013Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Scott V. Taylor, David T. Okihisa, Gregory I Bak-Boychuk, Emil Karapetian, John Stout
-
Patent number: 8529588Abstract: A surgical clip applier includes a train of clips disposed in a plane with a single clip removed from the train of clips and disposed in a staging position. A pair of jaws are adapted to receive the single clip from the staging position by operation of a jaw loader moveable outside the plane of the train of clips. In an associate method, a handle assembly is provided which is moveable in an open stroke and a closed stroke. A source of surgical clips are provided along with a pair of jaws which are adapted to receive one of the clips as the handle assembly is moved in an open stroke, the jaws are open to receive the clip. Following the opening of the jaws, a jaw loader is extended to a position between the jaws to move the clip into the jaws. The handle assembly is moveable in a closed stroke during which the jaws are closed to crimp the clip. Prior to this closing of the jaws, the jaw loader is retracted from the position between the jaws leaving the clip in the jaws.Type: GrantFiled: October 4, 2001Date of Patent: September 10, 2013Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Steven R. Anderson, Edward E. Dolendo, Vincent C. Tangherlini
-
Publication number: 20120209205Abstract: A stability assembly for a trocar cannula includes a conical stability member, a base, and a cannula retention member. The base has a passage defining an inner surface, and a constriction in the passage. The cannula retention member is rotatable within the passage, and advancement of the cannula retention member over the constriction reduces the inner diameter of the passage to restrain a cannula in the passage. Various latch mechanisms including interface surfaces on the base and the cannula retention member can be used in the stability assembly to secure the stability assembly around a cannula. Various conical stability members can be used in the stability assembly.Type: ApplicationFiled: April 24, 2012Publication date: August 16, 2012Applicant: Applied Medical Resources CorportionInventors: David T. Okihisa, Russell E. Ahlberg, Gary M. Johnson, Jeremy J. Albrecht, Michael L. Michaud, Benjamin A. Gianneschi
-
Patent number: 8162893Abstract: A stability assembly for a trocar cannula includes a conical stability member, a base, and a cannula retention member. The base has a passage defining an inner surface, and a constriction in the passage. The cannula retention member is rotatable within the passage, and advancement of the cannula retention member over the constriction reduces the inner diameter of the passage to restrain a cannula in the passage. Various latch mechanisms including interface surfaces on the base and the cannula retention member can be used in the stability assembly to secure the stability assembly around a cannula. Various conical stability members can be used in the stability assembly.Type: GrantFiled: January 15, 2009Date of Patent: April 24, 2012Assignee: Applied Medical Resources CorporationInventors: David T. Okihisa, Russell E. Ahlberg, Gary M. Johnson, Jeremy J. Albrecht, Michael L. Michaud, Benjamin A. Gianneschi
-
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
-
Patent number: 8114107Abstract: A laparoscopic scissor with a shaft for use through an access port, such as a trocar cannula, with one or more parabolic, cubic, quadratic or higher order cutting blades extending from the shaft is provided.Type: GrantFiled: April 16, 2007Date of Patent: February 14, 2012Assignee: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Charles C. Hart, Steven C. Kessler
-
Publication number: 20110316190Abstract: A process of making a tack-free gel is disclosed comprising the steps of providing a mold defining a mold cavity, the mold cavity comprising a plastic material; pouring or injecting a molten gel having a high molding temperature into the mold cavity; and forming the tack-free gel as a thin layer of plastic of the mold cavity is melted over the gel. The forming step further comprises cooling the gel from the molten state to a solidified state. The melting temperature of the plastic material is lower than the molding temperature of the gel; and the higher the temperature differential, the greater the melting of the plastic material and the thicker the layer of the plastic material on the surface of the gel. The mold may be formed of low-density polyethylene (LDPE).Type: ApplicationFiled: August 23, 2011Publication date: December 29, 2011Applicant: Applied Medical Resources CorporationInventors: Russell E. Ahlberg, Payam Adlparvar, Scott V. Taylor, Matthew A. Wixey, Daniel Martinez, John R. Brustad