Patents by Inventor Douglas D. Sjostrom
Douglas D. Sjostrom 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).
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Patent number: 10143359Abstract: A panning stereo endoscope which maintains an up-down orientation as the stereo endoscope pans an operative field, the panning stereo endoscope includes a shaft having an axis; first and second optical channels extending along the shaft, each of the first and second optical channels having an off-axis direction of view, and an actuating mechanism carried by the shaft including at least one cam follower having at least one follower point and adapted to (i) synchronously rotate the first and second optical channels about their respective axes, and (ii) synchronously, inversely piston the first and second optical channels along their respective axes.Type: GrantFiled: December 7, 2015Date of Patent: December 4, 2018Assignee: CONMED CORPORATIONInventors: Yuri Kazakevich, Douglas D. Sjostrom
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Patent number: 9585683Abstract: A surgical instrument includes a movable member having a proximal portion, the movable member defining an opening at the proximal portion. The instrument includes a stationary member defining an aperture. The stationary member is arranged relative to the movable member with a close fit between the stationary member and the movable member such that aspiration occurs through the movable member substantially only during a portion of a repetitive motion of the movable member. The instrument includes a surgical handpiece coupled to the movable member and the stationary member to provide suction and motion to the movable member.Type: GrantFiled: October 15, 2014Date of Patent: March 7, 2017Assignee: Smith & Nephew, Inc.Inventor: Douglas D. Sjostrom
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Publication number: 20160242634Abstract: A panning stereo endoscope which maintains an up-down orientation as the stereo endoscope pans an operative field, the panning stereo endoscope comprising: a shaft having an axis; first and second optical channels extending along the shaft, each of the first and second optical channels having an off-axis direction of view; and an actuating mechanism carried by the shaft and adapted to (i) synchronously rotate the first and second optical channels about their respective axes, and (ii) synchronously, inversely piston the first and second optical channels along their respective axes.Type: ApplicationFiled: December 7, 2015Publication date: August 25, 2016Inventors: Yuri Kazakevich, Douglas D. Sjostrom
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Publication number: 20160081529Abstract: A steerable stereoscopic endoscope comprising: a shaft having a distal end, a proximal end, and an articulating region therebetween; stereo image acquisition means disposed at the distal end of the shaft for acquiring stereo images of a remote site; and means for steering the portion of the shaft distal to the articulating region.Type: ApplicationFiled: June 2, 2015Publication date: March 24, 2016Inventors: Douglas D. Sjostrom, Yuri Kazakevich, William Bopp
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Patent number: 9204787Abstract: A panning stereo endoscope which maintains an up-down orientation as the stereo endoscope pans an operative field, the panning stereo endoscope including a shaft having an axis; first and second optical channels extending along the shaft, each of the first and second optical channels having an off-axis direction of view; and an actuating mechanism carried by the shaft and adapted to (i) synchronously rotate the first and second optical channels about their respective axes, and (ii) synchronously, inversely piston the first and second optical channels along their respective axes.Type: GrantFiled: April 10, 2013Date of Patent: December 8, 2015Assignee: ConMed CorporationInventors: Yuri Kazakevich, Douglas D. Sjostrom
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Patent number: 9044138Abstract: A steerable stereoscopic endoscope including a shaft having a distal end, a proximal end, and an articulating region therebetween; a stereo image acquisition mechanism disposed at the distal end of the shaft for acquiring stereo images of a remote site; and a mechanism for steering the portion of the shaft distal to the articulating region.Type: GrantFiled: October 22, 2012Date of Patent: June 2, 2015Assignee: Viking Systems, Inc.Inventors: Douglas D. Sjostrom, Yuri Kazakevich, William Bopp
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Publication number: 20150032139Abstract: A surgical instrument includes a movable member having a proximal portion, the movable member defining an opening at the proximal portion. The instrument includes a stationary member defining an aperture. The stationary member is arranged relative to the movable member with a close fit between the stationary member and the movable member such that aspiration occurs through the movable member substantially only during a portion of a repetitive motion of the movable member. The instrument includes a surgical handpiece coupled to the movable member and the stationary member to provide suction and motion to the movable member.Type: ApplicationFiled: October 15, 2014Publication date: January 29, 2015Inventor: Douglas D. Sjostrom
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Patent number: 8876731Abstract: A surgical instrument includes a movable member having a proximal portion, the movable member defining an opening at the proximal portion. The instrument includes a stationary member defining an aperture. The stationary member is arranged relative to the movable member with a close fit between the stationary member and the movable member such that aspiration occurs through the movable member substantially only during a portion of a repetitive motion of the movable member. The instrument includes a surgical handpiece coupled to the movable member and the stationary member to provide suction and motion to the movable member. A method of regulating aspiration through a surgical instrument includes providing a close fit between a moving member having an opening at a proximal portion and a stationary member having an aperture such that aspiration occurs through the moving member substantially only during a portion of a repetitive motion of the movable member.Type: GrantFiled: November 26, 2013Date of Patent: November 4, 2014Assignee: Smith & Nephew, Inc.Inventor: Douglas D. Sjostrom
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Publication number: 20140088546Abstract: A surgical instrument includes a movable member having a proximal portion, the movable member defining an opening at the proximal portion. The instrument includes a stationary member defining an aperture. The stationary member is arranged relative to the movable member with a close fit between the stationary member and the movable member such that aspiration occurs through the movable member substantially only during a portion of a repetitive motion of the movable member. The instrument includes a surgical handpiece coupled to the movable member and the stationary member to provide suction and motion to the movable member. A method of regulating aspiration through a surgical instrument includes providing a close fit between a moving member having an opening at a proximal portion and a stationary member having an aperture such that aspiration occurs through the moving member substantially only during a portion of a repetitive motion of the movable member.Type: ApplicationFiled: November 26, 2013Publication date: March 27, 2014Applicant: Smith & Nephew, Inc.Inventor: Douglas D. Sjostrom
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Patent number: 8608666Abstract: A surgical instrument includes a movable member having a proximal portion, the movable member defining an opening at the proximal portion. The instrument includes a stationary member defining an aperture. The stationary member is arranged relative to the movable member with a close fit between the stationary member and the movable member such that aspiration occurs through the movable member substantially only during a portion of a repetitive motion of the movable member. The instrument includes a surgical handpiece coupled to the movable member and the stationary member to provide suction and motion to the movable member. A method of regulating aspiration through a surgical instrument includes providing a close fit between a moving member having an opening at a proximal portion and a stationary member having an aperture such that aspiration occurs through the moving member substantially only during a portion of a repetitive motion of the movable member.Type: GrantFiled: July 30, 2010Date of Patent: December 17, 2013Assignee: Smith & Nephew, Inc.Inventor: Douglas D. Sjostrom
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Patent number: 8177800Abstract: A method for removing a vein includes making an incision through a skin layer of a patient, inserting a surgical instrument through the incision, visualizing the vein through the skin layer using a light source positioned subcutaneously and in proximity of the vein, and cutting the vein using the surgical instrument. The vein can be visualized by directing light from the light source at the vein from underneath the vein or from a side of the vein. A device for illuminating a body structure has a housing with a distal end configured for subcutaneous insertion into a patient's tissue and positioning in proximity of the body structure, a light path supported by the housing and configured for directing light at the body structure, and a fluid line supported by the housing.Type: GrantFiled: February 24, 2006Date of Patent: May 15, 2012Assignee: InaVein LLCInventors: Gregory A. Spitz, Douglas D. Sjostrom, Alexander D. Grinberg, Michael A. Long
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Publication number: 20100292675Abstract: A surgical instrument includes a movable member having a proximal portion, the movable member defining an opening at the proximal portion. The instrument includes a stationary member defining an aperture. The stationary member is arranged relative to the movable member with a close fit between the stationary member and the movable member such that aspiration occurs through the movable member substantially only during a portion of a repetitive motion of the movable member. The instrument includes a surgical handpiece coupled to the movable member and the stationary member to provide suction and motion to the movable member. A method of regulating aspiration through a surgical instrument includes providing a close fit between a moving member having an opening at a proximal portion and a stationary member having an aperture such that aspiration occurs through the moving member substantially only during a portion of a repetitive motion of the movable member.Type: ApplicationFiled: July 30, 2010Publication date: November 18, 2010Applicant: Smith & Nephew, Inc.Inventor: Douglas D. Sjostrom
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Patent number: 7766844Abstract: A surgical instrument includes a movable member having a proximal portion, the movable member defining an opening at the proximal portion. The instrument includes a stationary member defining an aperture. The stationary member is arranged relative to the movable member with a close fit between the stationary member and the movable member such that aspiration occurs through the movable member substantially only during a portion of a repetitive motion of the movable member. The instrument includes a surgical handpiece coupled to the movable member and the stationary member to provide suction and motion to the movable member. A method of regulating aspiration through a surgical instrument includes providing a close fit between a moving member having an opening at a proximal portion and a stationary member having an aperture such that aspiration occurs through the moving member substantially only during a portion of a repetitive motion of the movable member.Type: GrantFiled: April 21, 2004Date of Patent: August 3, 2010Assignee: Smith & Nephew, Inc.Inventor: Douglas D. Sjostrom
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Patent number: 7485125Abstract: A cutting instrument includes an outer member having a cutting portion, and a helical knife coupled to the outer member for rotation relative to the outer member. At least a portion of the helical knife extends distally beyond the cutting portion. The instrument includes an inner member received within the outer member. The helical knife is at a distal end of the inner member. A method of cutting includes slicing into tissue with a helical knife to draw tissue proximally toward a cutting portion, and cutting the tissue with the cutting portion. The helical knife is provided on an inner member, and the cutting portion is provided on an outer member. Cut tissue is transported along a helical channel defined by the helical knife and aspirated through a hollow interior in the inner member.Type: GrantFiled: December 17, 2001Date of Patent: February 3, 2009Assignee: Smith & Nephew, Inc.Inventor: Douglas D. Sjostrom
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Patent number: 7150747Abstract: One surgical device includes a first member and a second member defining a lumen for receiving the first member. The first member is configured to be movable relative to the second member to cut tissue. An electrical connector is physically and electrically coupled to the second member, to electrically couple the second member to a source of electricity. A tension device holds a distal region of the first member in electrical contact with a distal region of the second member. The first member includes a blade used both to cut tissue mechanically, and to coagulate cut tissue. The blade is electrically conductive and serves as an active electrode in a bipolar arrangement with a return electrode. Electrical energy is transferred to the blade through a point contact at a distal tip of the first and second members.Type: GrantFiled: January 22, 2003Date of Patent: December 19, 2006Assignee: Smith & Nephew, Inc.Inventors: Christopher McDonald, Michael A. Brodsky, Karen Drucker, Albert R. Lopes, Jr., Douglas D. Sjostrom
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Patent number: 7018391Abstract: A method for removing a vein includes making an incision through a skin layer of a patient, inserting a surgical instrument through the incision, visualizing the vein through the skin layer using a light source positioned subcutaneously and in proximity of the vein, and cutting the vein using the surgical instrument. The vein can be visualized by directing light from the light source at the vein from underneath the vein or from a side of the vein. A device for illuminating a body structure has a housing with a distal end configured for subcutaneous insertion into a patient's tissue and positioning in proximity of the body structure, a light path supported by the housing and configured for directing light at the body structure, and a fluid line supported by the housing.Type: GrantFiled: January 31, 2002Date of Patent: March 28, 2006Assignee: Smith & Nephew North AmericaInventors: Gregory A. Spitz, Douglas D. Sjostrom, Alexander D Grinberg, Michael A. Long
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Publication number: 20030114875Abstract: A cutting instrument includes an outer member having a cutting portion, and a helical knife coupled to the outer member for rotation relative to the outer member. At least a portion of the helical knife extends distally beyond the cutting portion. The instrument includes an inner member received within the outer member. The helical knife is at a distal end of the inner member. A method of cutting includes slicing into tissue with a helical knife to draw tissue proximally toward a cutting portion, and cutting the tissue with the cutting portion. The helical knife is provided on an inner member, and the cutting portion is provided on an outer member. Cut tissue is transported along a helical channel defined by the helical knife and aspirated through a hollow interior in the inner member.Type: ApplicationFiled: December 17, 2001Publication date: June 19, 2003Inventor: Douglas D. Sjostrom
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Patent number: 6436116Abstract: A method for removing a vein includes making an incision through a skin layer of a patient, inserting a surgical instrument through the incision, visualizing the vein through the skin layer using a light source positioned subcutaneously and in proximity of the vein, and cutting the vein using the surgical instrument. The vein can be visualized by directing light from the light source at the vein from underneath the vein or from a side of the vein. A device for illuminating a body structure has a housing with a distal end configured for subcutaneous insertion into a patient's tissue and positioning in proximity of the body structure, a light path supported by the housing and configured for directing light at the body structure, and a fluid line supported by the housing.Type: GrantFiled: November 24, 1999Date of Patent: August 20, 2002Assignee: Smith & Nephew, Inc.Inventors: Gregory A. Spitz, Douglas D. Sjostrom, Alexander D. Grinberg, Michael A. Long
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Publication number: 20020082632Abstract: A method for removing a vein includes making an incision through a skin layer of a patient, inserting a surgical instrument through the incision, visualizing the vein through the skin layer using a light source positioned subcutaneously and in proximity of the vein, and cutting the vein using the surgical instrument. The vein can be visualized by directing light from the light source at the vein from underneath the vein or from a side of the vein. A device for illuminating a body structure has a housing with a distal end configured for subcutaneous insertion into a patient's tissue and positioning in proximity of the body structure, a light path supported by the housing and configured for directing light at the body structure, and a fluid line supported by the housing.Type: ApplicationFiled: January 31, 2002Publication date: June 27, 2002Applicant: Smith & Nephew North America, a Delaware corporationInventors: Gregory A. Spitz, Douglas D. Sjostrom, Alexander D. Grinberg, Michael A. Long
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Patent number: 6328752Abstract: A surgical apparatus includes a body configured for insertion into a bore of a surgical handpiece and a latch that includes a resilient member connected to the body. The resilient member has a latching structure configured to latchingly engage a surface of the surgical handpiece within the bore.Type: GrantFiled: June 6, 2000Date of Patent: December 11, 2001Assignee: Smith & Nephew, Inc.Inventors: Douglas D. Sjostrom, Peter M. Cesarini, Paul A. Torrie, Graham Smith, Steven Ek