Patents by Inventor Ryan J. Caldwell
Ryan J. Caldwell 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: 11918493Abstract: Prosthetic liner apparatus for improving suspension and rotation control between a residual limb and a socket of a prosthesis include a liner body having a shape configured to receive the residual limb and having an outer surface that fits within the socket. The liner body may have a plurality of raised elastomeric grips located on its outer surface and a proximal end of the outer surface of the liner body includes at least an exposed smooth elastomeric region that fits within and seals with the socket. Further disclosed is a prosthetic sock having raised elastomeric grips on its inner and outer surfaces which is for use with a liner body that is smooth or textured and that may or may not include raised elastomeric grips, and that when used together with the liner body ay form a liner apparatus.Type: GrantFiled: November 8, 2019Date of Patent: March 5, 2024Assignee: Northwestern UniversityInventors: Ryan J. Caldwell, Stefania Fatone
-
Patent number: 11877938Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a diaphragm disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump, forming a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: GrantFiled: October 7, 2020Date of Patent: January 23, 2024Assignees: United States Government As Represented By The Department Of Veterans Affairs, Northwestern UniversityInventors: Ryan J. Caldwell, Matthew J. Major
-
Publication number: 20210393420Abstract: Prosthetic liner apparatus for improving suspension and rotation control between a residual limb and a socket of a prosthesis include a liner body having a shape configured to receive the residual limb and having an outer surface that fits within the socket. The liner body may have a plurality of raised elastomeric grips located on its outer surface and a proximal end of the outer surface of the liner body includes at least an exposed smooth elastomeric region that fits within and seals with the socket. Further disclosed is a prosthetic sock having raised elastomeric grips on its inner and outer surfaces which is for use with a liner body that is smooth or textured and that may or may not include raised elastomeric grips, and that when used together with the liner body ay form a liner apparatus.Type: ApplicationFiled: November 8, 2019Publication date: December 23, 2021Inventors: Ryan J. CALDWELL, Stefania FANTONE
-
Publication number: 20210220154Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a diaphragm disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump, forming a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: ApplicationFiled: October 7, 2020Publication date: July 22, 2021Inventors: Ryan J. Caldwell, Matthew J. Major
-
Patent number: 10806604Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a diaphragm disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump, forming a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: GrantFiled: August 19, 2016Date of Patent: October 20, 2020Assignee: Northwestern UniversityInventors: Ryan J. Caldwell, Matthew J. Major
-
Publication number: 20180271679Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a diaphragm disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump, forming a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: ApplicationFiled: August 19, 2016Publication date: September 27, 2018Inventors: Ryan J. Caldwell, Matthew J. Major
-
Patent number: 9757255Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a compressible bladder disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump within a fluid circuit of a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: GrantFiled: June 4, 2015Date of Patent: September 12, 2017Assignee: Northwestern UniversityInventors: Ryan J. Caldwell, Andrew H. Hansen, Sean M. Wood, Wei Chen, Regan A. Radcliffe, Kevin A. Yngve, Bennett E. Kuhar, Andrew J. Nelson, Eric Nickel
-
Publication number: 20150265436Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a compressible bladder disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump within a fluid circuit of a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: ApplicationFiled: June 4, 2015Publication date: September 24, 2015Applicant: Northwestern UniversityInventors: Ryan J. Caldwell, Andrew H. Hansen, Sean M. Wood, Wei Chen, Regan A. Radcliffe, Kevin A. Yngve, Bennett E. Kuhar, Andrew J. Nelson, Eric Nickel
-
Publication number: 20150265435Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a compressible bladder disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump within a fluid circuit of a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: ApplicationFiled: June 4, 2015Publication date: September 24, 2015Applicant: NORTHWESTERN UNIVERSITYInventors: Ryan J. Caldwell, Andrew H. Hansen, Sean M. Wood, Wei Chen, Regan A. Radcliffe, Kevin A. Yngve, Bennett E. Kuhar, Andrew J. Nelson, Eric Nickel
-
Patent number: 9066822Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a compressible bladder disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump within a fluid circuit of a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: GrantFiled: June 21, 2012Date of Patent: June 30, 2015Assignee: NORTHWESTERN UNIVERSITYInventors: Ryan J. Caldwell, Andrew H. Hansen, Sean M. Wood, Wei Chen, Regan A. Radcliffe, Kevin A. Yngve, Bennett E. Kuhar, Andrew J. Nelson, Eric Nickel
-
Publication number: 20130096694Abstract: Pump systems for use in suspension of a prosthetic device from a residual limb and methods of suspending a prosthetic device from a residual limb are disclosed. The pump systems include a mechanically activated pump having a first compression member coupled to a second compression member, a compressible bladder disposed between the first and second compression members, and coupling elements that engage and couple together the first and second compression members. The mechanically activated pump may be connected with an electrically activated pump within a fluid circuit of a hybrid pump system to provide vacuum engagement between a prosthetic device and a residual limb.Type: ApplicationFiled: June 21, 2012Publication date: April 18, 2013Applicant: NORTHWESTERN UNIVERSITYInventors: Ryan J. Caldwell, Andrew H. Hansen, Sean M. Wood, Wei Chen, Regan A. Radcliffe, Kevin A. Yngve, Bennett E. Kuhar, Andrew J. Nelson, Eric Nickel