Patents by Inventor Lex P. Jansen
Lex P. Jansen 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: 10092315Abstract: Systems and methods for accessing the spine include tissue penetrating members with direct visualization capability that may be used to form an access pathway to a targeted treatment site. The direct visualization capability, which may be provided by fiberoptic illumination and imaging components, may be use to visualize the tissue as the access pathway is formed by the tissue penetrating member. The tissue penetrating members include catheters and cannulas with sharpened tips with integrated fiberoptic components and/or channels in which a fiberscope or miniscope may be inserted. Apertures and/or transparent materials are provided to permit imaging of tissue about the distal end of the tissue penetrating member.Type: GrantFiled: July 27, 2009Date of Patent: October 9, 2018Assignee: Expanding Innovations, Inc.Inventors: Lex P. Jansen, Singfatt Chin, John T. To
-
Patent number: 9962170Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. Some of the bone removal devices include expandable members which may be used to control the forced exerted and/or position of the bone removal mechanism, and to protect neurovascular structures and other soft tissue structures from the bone removal mechanism. Other bone removal devices include a trephine with a viewing window and a guide wire lumen used to position the trephine at a target tissue site using an anchored wire. The viewing window may be used to monitor structures or tissues adjacent to the target tissue site.Type: GrantFiled: November 23, 2010Date of Patent: May 8, 2018Assignee: Spine View, Inc.Inventors: Lex P. Jansen, John W. Davis, John T. To, Singfatt Chin, Myra I. L. Fabro
-
Publication number: 20160095503Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. A bone removal device includes a cannulotome with an endoscopic imaging lumen. Optionally, an endoscope retaining device can be used to facilitate advancement of the endoscope through the cannulotome.Type: ApplicationFiled: June 8, 2015Publication date: April 7, 2016Applicant: SPINE VIEW, INC.Inventors: John Davis, John To, Lex P. Jansen, Stewart Kume, Wendy Twardzik
-
Publication number: 20150342450Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. A bone removal device includes a cannulotome with an endoscopic imaging lumen. Optionally, an endoscope retaining device can be used to facilitate advancement of the endoscope through the cannulotome.Type: ApplicationFiled: January 30, 2015Publication date: December 3, 2015Applicant: Spine View, Inc.Inventors: John Davis, John To, Lex P. Jansen, Stewart Kume, Wendy Twardzik
-
Patent number: 9049986Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. A bone removal device includes a cannulotome with an endoscopic imaging lumen. Optionally, an endoscope retaining device can be used to facilitate advancement of the endoscope through the cannulotome.Type: GrantFiled: September 20, 2011Date of Patent: June 9, 2015Assignee: Spine View, Inc.Inventors: Lex P. Jansen, John T. To, John W. Davis, Stewart M. Kume, Wendy Twardzik
-
Patent number: 8973239Abstract: An intravascular balloon catheter having an ultra soft tip. The catheter includes a braided reinforcement member extending substantially the length of the elongate shaft. A balloon is disposed at the distal end of the elongate shaft. An ultra soft tip is formed from a distal portion of balloon material extending distal of the distal end of the elongate shaft.Type: GrantFiled: October 18, 2010Date of Patent: March 10, 2015Assignee: Boston Scientific Scimed, Inc.Inventors: Stephen Griffin, Huey Quoc Chan, Elaine Lim, Lex P. Jansen, Anthony F. Tassoni, Jr.
-
Patent number: 8926620Abstract: In some embodiments, an apparatus includes an elongated member, an expandable member coupled to the elongated member, and an outer sheath. The outer sheath, which can be constructed from a different material than the expandable member, is disposed about the expandable member such that an outer surface of the expandable member is in discontinuous contact with an inner surface of the outer sheath. The expandable member and the outer sheath are configured to cooperatively displace a bone structure when moving between a collapsed configuration and an expanded configuration.Type: GrantFiled: September 28, 2011Date of Patent: January 6, 2015Assignee: Kyphon SarlInventors: Nishith Chasmawala, Bryan J. Auyoung, Gorman D. Gong, Alex Y. Hsia, Lex P. Jansen, Christopher U. Phan
-
Publication number: 20140336621Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry A. Fukui, Jeffrey A. Sarge, Lawrence C. Alpert
-
Patent number: 8795255Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: GrantFiled: November 12, 2012Date of Patent: August 5, 2014Assignee: Boston Scientific Scimed, Inc.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
-
Publication number: 20140155695Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. A bone removal device includes a cannulotome with an endoscopic imaging lumen. Optionally, an endoscope retaining device can be used to facilitate advancement of the endoscope through the cannulotome.Type: ApplicationFiled: February 10, 2014Publication date: June 5, 2014Applicant: SPINE VIEW, INC.Inventors: Lex P. Jansen, John To, John Davis, Stewart Kume, Wendy Twardzik
-
Patent number: 8647257Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. A bone removal device includes a cannulotome with an endoscopic imaging lumen. Optionally, an endoscope retaining device can be used to facilitate advancement of the endoscope through the cannulotome.Type: GrantFiled: September 26, 2011Date of Patent: February 11, 2014Inventors: Lex P. Jansen, John T. To, John W. Davis, Stewart M. Kume, Wendy Twardzik
-
Patent number: 8317772Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: GrantFiled: March 10, 2011Date of Patent: November 27, 2012Assignee: Target Therapeutics, Inc.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
-
Patent number: 8292945Abstract: A stent comprising a serpentine portion extending about the circumference of the stent, the serpentine portion having a first end and a second end, the serpentine portion having a plurality of turns at the first end and a plurality of turns at the second end and struts extending therebetween, at least one of the turns at the first end, at least one of the turns at the second end, at least one of the struts therebetween, or some combination thereof having a plurality of shaped recesses thereon.Type: GrantFiled: August 16, 2005Date of Patent: October 23, 2012Assignee: Boston Scientific Scimed, Inc.Inventors: Greg P. Welsh, Lex P. Jansen
-
Patent number: 8142463Abstract: Apparatuses and methods for accessing and disrupting a tissue are disclosed herein. In one embodiment, an apparatus includes a first elongate member having a tissue interaction portion disposed at a distal end of the first elongate member. The tissue interaction portion is configured to be inserted within a biological body. A second elongate member is movably disposed within a lumen defined by the first elongate member. The second elongate member has a threaded exterior surface. A drive motor is coupled to the first elongate member and coupled to the second elongate member. The drive motor is configured to rotate the first elongate member in a first direction and configured to rotate the second elongate member in a second direction opposite the first direction. The tissue interaction portion is configured to disrupt tissue when disposed into the biological body and when the first elongate member is rotated.Type: GrantFiled: March 13, 2009Date of Patent: March 27, 2012Assignee: Kyphon SarlInventors: Greg Arcenio, Lex P. Jansen
-
Publication number: 20120071714Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. A bone removal device includes a cannulotome with an endoscopic imaging lumen. Optionally, an endoscope retaining device can be used to facilitate advancement of the endoscope through the cannulotome.Type: ApplicationFiled: September 20, 2011Publication date: March 22, 2012Inventors: Lex P. JANSEN, John T. To, John W. Davis, Stewart M. Kume, Wendy Twardzik
-
Publication number: 20120022540Abstract: In some embodiments, an apparatus includes an elongated member, an expandable member coupled to the elongated member, and an outer sheath. The outer sheath, which can be constructed from a different material than the expandable member, is disposed about the expandable member such that an outer surface of the expandable member is in discontinuous contact with an inner surface of the outer sheath. The expandable member and the outer sheath are configured to cooperatively displace a bone structure when moving between a collapsed configuration and an expanded configuration.Type: ApplicationFiled: September 28, 2011Publication date: January 26, 2012Applicant: Kyphon SÀRLInventors: Nishith Chasmawala, Bryan J. Auyoung, Gorman Gong, Alex Hsia, Lex P. Jansen, Christopher U. Phan
-
Publication number: 20120016192Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. A bone removal device includes a cannulotome with an endoscopic imaging lumen. Optionally, an endoscope retaining device can be used to facilitate advancement of the endoscope through the cannulotome.Type: ApplicationFiled: September 26, 2011Publication date: January 19, 2012Inventors: Lex P. Jansen, John T. To, John W. Davis, Stewart M. Kume, Wendy Twardzik
-
Publication number: 20110288553Abstract: Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. Some of the bone removal devices include expandable members which may be used to control the forced exerted and/or position of the bone removal mechanism, and to protect neurovascular structures and other soft tissue structures from the bone removal mechanism. Other bone removal devices include a trephine with a viewing window and a guide wire lumen used to position the trephine at a target tissue site using an anchored wire. The viewing window may be used to monitor structures or tissues adjacent to the target tissue site.Type: ApplicationFiled: November 23, 2010Publication date: November 24, 2011Applicant: Spine View, Inc.Inventors: Lex P. Jansen, John W. Davis, John T. To, Singfatt Chin, Myra I. L. Fabro
-
Patent number: 8043296Abstract: In some embodiments, an apparatus includes an elongated member, an expandable member coupled to the elongated member, and an outer sheath. The outer sheath, which can be constructed from a different material than the expandable member, is disposed about the expandable member such that an outer surface of the expandable member is in discontinuous contact with an inner surface of the outer sheath. The expandable member and the outer sheath are configured to cooperatively displace a bone structure when moving between a collapsed configuration and an expanded configuration.Type: GrantFiled: March 30, 2007Date of Patent: October 25, 2011Assignee: Kyphon SARLInventors: Nishith Chasmawala, Bryan J. Auyoung, Gorman Gong, Alex Hsia, Lex P. Jansen, Christopher U. Phan
-
Publication number: 20110172643Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: ApplicationFiled: March 10, 2011Publication date: July 14, 2011Applicant: TARGET THERAPEUTICS, INC.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert