Patents by Inventor Douglas J. Roger
Douglas J. Roger 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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Publication number: 20170164939Abstract: A retractor system, kit and method of use include a plurality of retractors for use in retracting a wound during a minimally-invasive hip replacement surgery to define an access space to a surgical site is discussed. Each of the retractors comprises a handle portion configured to be held by a user, a curved bend portion distal of the handle portion, and a wound contact portion attached to the curved bend portion. The wound contact portion is configured to contact tissue of the wound when at least a portion of the retractor is inserted through a skin incision that defines the wound. Each retractor also has a distal portion disposed distally of the wound contact portion, wherein the wound contact portion has a generally curved cross-sectional profile perpendicular to its length that is configured to prevent necrosis of the tissue during retraction. In addition, the cross-sectional profile provides an improved line of sight during the surgical procedure.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Inventors: Chad E. Ryshkus, Douglas J. Roger, Jonathan P. Crandall
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Patent number: 9622734Abstract: A retractor system, kit and method of use includes a plurality of retractors for use in retracting a wound during a minimally-invasive hip replacement surgery to define an access space to a surgical site is discussed. Each of the retractors comprises a handle portion configured to be held by a user, a curved bend portion distal of the handle portion, and a wound contact portion attached to the curved bend portion. The wound contact portion is configured to contact tissue of the wound when at least a portion of the retractor is inserted through a skin incision that defines the wound. Each retractor also has a distal portion disposed distally of the wound contact portion, wherein the wound contact portion has a generally curved cross-sectional profile perpendicular to its length that is configured to prevent necrosis of the tissue during retraction. In addition, the cross-sectional profile provides an improved line of sight during the surgical procedure.Type: GrantFiled: March 19, 2015Date of Patent: April 18, 2017Assignee: Greabatch Ltd.Inventors: Chad E. Ryshkus, Douglas J. Roger, Jonathan P. Crandall
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Publication number: 20150196289Abstract: A retractor system, kit and method of use includes a plurality of retractors for use in retracting a wound during a minimally-invasive hip replacement surgery to define an access space to a surgical site is discussed. Each of the retractors comprises a handle portion configured to be held by a user, a curved bend portion distal of the handle portion, and a wound contact portion attached to the curved bend portion. The wound contact portion is configured to contact tissue of the wound when at least a portion of the retractor is inserted through a skin incision that defines the wound. Each retractor also has a distal portion disposed distally of the wound contact portion, wherein the wound contact portion has a generally curved cross-sectional profile perpendicular to its length that is configured to prevent necrosis of the tissue during retraction. In addition, the cross-sectional profile provides an improved line of sight during the surgical procedure.Type: ApplicationFiled: March 19, 2015Publication date: July 16, 2015Inventors: Chad E. Ryshkus, Douglas J. Roger, Jonathan P. Crandall
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Publication number: 20150173733Abstract: A retractor system, kit and method of use includes a plurality of retractors for use in retracting a wound during a minimally-invasive hip replacement surgery to define an access space to a surgical site is discussed. Each of the retractors comprises a handle portion configured to be held by a user, a curved bend portion distal of the handle portion, and a wound contact portion attached to the curved bend portion. The wound contact portion is configured to contact tissue of the wound when at least a portion of the retractor is inserted through a skin incision that defines the wound. Each retractor also has a distal portion disposed distally of the wound contact portion, wherein the wound contact portion has a generally curved cross-sectional profile perpendicular to its length that is configured to prevent necrosis of the tissue during retraction. In addition, the cross-sectional profile provides an improved line of sight during the surgical procedure.Type: ApplicationFiled: July 29, 2011Publication date: June 25, 2015Applicant: Greatbatch Ltd.Inventors: Chad Ryshkus, Douglas J. Roger, Jonathan P. Crandall
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Publication number: 20150018833Abstract: An orthopedic cup impactor for use in minimally invasive hip replacement surgical procedures is described. The impactor comprises a handle, residing at a proximal end portion, and a cup engagement sub-assembly located at a distal portion. A shaft resides therebetween. The shaft portion is designed with a large radius of curvature that provides added clearance when inserting the impactor in obese patients. The cup engagement sub-assembly features a drive train that comprises a series of “U” and “H” joints deigned to provide full rotational motion. The drive train may be designed to be removable from the cup impactor to provide more efficient and thorough cleaning.Type: ApplicationFiled: August 4, 2011Publication date: January 15, 2015Applicant: Greatbatch Ltd.Inventors: Jonathan P. Crandall, Douglas J. Roger
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Patent number: 8834471Abstract: A reamer for use in minimally invasive hip replacement surgical approaches is provided. The reamer spindle includes an elongate housing portion that extends along a first axis and a neck or distal portion that extends along a second axis, wherein the second axis extends at an angle of between about 35 degrees and about 65 degrees relative to the first axis. A reamer head is removably connectable to the distal neck portion and has a surface configured to cut bone.Type: GrantFiled: June 25, 2013Date of Patent: September 16, 2014Assignee: Greatbatch Medical S.A.Inventors: Douglas J. Roger, Philippe Fehlbaum, Yann Rosse
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Publication number: 20130331841Abstract: A reamer for use in minimally invasive hip replacement surgical approaches is provided. The reamer spindle includes an elongate housing portion that extends along a first axis and a neck or distal portion that extends along a second axis, wherein the second axis extends at an angle of between about 35 degrees and about 65 degrees relative to the first axis. A reamer head is removably connectable to the distal neck portion and has a surface configured to cut bone.Type: ApplicationFiled: June 25, 2013Publication date: December 12, 2013Inventors: Douglas J. Roger, Philippe Fehlbaum, Yann Rosse
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Patent number: 8480674Abstract: A reamer for use in minimally invasive hip replacement surgical approaches is provided. The reamer spindle includes an elongate housing portion that extends along a first axis and a neck or distal portion that extends along a second axis, wherein the second axis extends at an angle of between about 35 degrees and about 65 degrees relative to the first axis. A reamer head is removably connectable to the distal neck portion and has a surface configured to cut bone.Type: GrantFiled: July 21, 2011Date of Patent: July 9, 2013Assignee: Greatbatch Medical S.A.Inventors: Douglas J. Roger, Philippe Fehlbaum, Yann Rosse
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Patent number: 8475460Abstract: A reamer for use in minimally invasive hip replacement surgical approaches is provided. The reamer spindle includes an elongate housing portion that extends along a first axis and a neck or distal portion that extends along a second axis, wherein the second axis extends at an angle of between about 35 degrees and about 65 degrees relative to the first axis. A reamer head is removably connectable to the distal neck portion and has a surface configured to cut bone.Type: GrantFiled: February 23, 2011Date of Patent: July 2, 2013Assignee: Greatbatch Medical S.A.Inventors: Douglas J. Roger, Philippe Fehlbaum, Yann Rossé
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Patent number: 4524347Abstract: A position measuring device includes a conventional encoder, a scale member and an index member together arranged to provide two periodic waveforms of the same frequency and in quadrature with one another. Errors in the waveforms are corrected, and the corrected waveforms used to produce an indication of the position represented by the waveforms. The two positional indications are combined to give a high-resolution output. The conventional encoder may be absolute or incremental, and the device may be used to measure linear or angular position relative to a datum.Type: GrantFiled: April 18, 1983Date of Patent: June 18, 1985Assignee: Ferranti LimitedInventor: Douglas J. Rogers
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Patent number: 4392378Abstract: Capacitance measuring apparatus comprises a variable capacitor VC and a reference capacitor FC. Circuits D, ID, are provided for generating a periodic waveform for application directly to the variable capacitor, and in inverted form to the reference capacitor. Switches means SM are operated by control logic CL to connect the two capacitors in sequence to the input of an integrating amplifier IA, the output of which is applied to a comparator CM to which is also applied a reference level. The output of the comparator controls the control logic. Output of the control logic is converted to an indication of the capacitance of the variable capacitor relative to that of the reference capacitor.Type: GrantFiled: August 25, 1980Date of Patent: July 12, 1983Assignee: 501 Ferranti LimitedInventors: Brian E. Pitches, Robert M. S. Murray, Douglas J. Rogers
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Patent number: D658285Type: GrantFiled: July 29, 2011Date of Patent: April 24, 2012Assignee: Greatbatch Ltd.Inventors: Chad Ryshkus, Douglas J. Roger
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Patent number: D658286Type: GrantFiled: July 29, 2011Date of Patent: April 24, 2012Assignee: Greatbatch Ltd.Inventors: Chad Ryshkus, Douglas J. Roger
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Patent number: D658287Type: GrantFiled: July 29, 2011Date of Patent: April 24, 2012Assignee: Greatbatch Ltd.Inventors: Chad Ryshkus, Jonathan P. Crandall, Douglas J. Roger
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Patent number: D658288Type: GrantFiled: July 29, 2011Date of Patent: April 24, 2012Assignee: Greatbatch Ltd.Inventors: Chad Ryshkus, Jonathan P. Crandall, Douglas J. Roger
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Patent number: D658289Type: GrantFiled: July 29, 2011Date of Patent: April 24, 2012Assignee: Greatbatch Ltd.Inventors: Chad Ryshkus, Jonathan P. Crandall, Douglas J. Roger
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Patent number: D658290Type: GrantFiled: July 29, 2011Date of Patent: April 24, 2012Assignee: Greatbatch Ltd.Inventors: Chad Ryshkus, Jonathan P. Crandall, Douglas J. Roger
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Patent number: D706924Type: GrantFiled: September 28, 2012Date of Patent: June 10, 2014Assignee: Greatbatch Ltd.Inventors: Chad E. Ryshkus, Jonathan P. Crandall, Douglas J. Roger