Contact sensors and methods for making same

Details Contact sensors and methods for making same Contact sensors and methods for making same

2005-02-15

2010-12-14

Caputo, Lisa M (Department: 2855)

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Specified electrical sensor or system

C073S862680, C623S020140

Reexamination Certificate

active

07849751

ABSTRACT:
The present invention is directed to novel contact sensors. The contact sensors of the invention include a conductive composite material formed of a polymer and a conductive filler. In one particular embodiment, the composite materials can include less than about 10 wt % conductive filler. Thus, the composite material of the contact sensors can have physical characteristics essentially identical to the polymer, while being electrically conductive with the electrical resistance proportional to the load on the sensor. If desired, the sensors can be formed of the same polymeric material as the bearing that is being examined. The sensors can provide real time dynamic contact information for joint members under conditions expected during use. In one particular embodiment, the sensors can be used to examine dynamic wear characteristics of artificial joint bearings such as artificial knee, hip, or shoulder bearings.

REFERENCES:
patent: 4145317 (1979-03-01), Sado et al.
patent: 4273682 (1981-06-01), Kanamori
patent: 4302361 (1981-11-01), Kotani et al.
patent: 4314227 (1982-02-01), Eventoff
patent: 4394773 (1983-07-01), Ruell
patent: 4489302 (1984-12-01), Eventoff
patent: 4492949 (1985-01-01), Peterson et al.
patent: 4495236 (1985-01-01), Obara et al.
patent: 4553837 (1985-11-01), Marcus
patent: 4634623 (1987-01-01), Watkins
patent: 4734034 (1988-03-01), Maness et al.
patent: 4856993 (1989-08-01), Maness et al.
patent: 5033291 (1991-07-01), Podoloff et al.
patent: 5042504 (1991-08-01), Huberti
patent: 5083573 (1992-01-01), Arms
patent: 5197488 (1993-03-01), Kovacevic
patent: 5302936 (1994-04-01), Yaniger
patent: 5360016 (1994-11-01), Kovacevic
patent: 5422061 (1995-06-01), Takahashi et al.
patent: 5470354 (1995-11-01), Hershberger et al.
patent: 5541570 (1996-07-01), McDowell
patent: 5756904 (1998-05-01), Oreper et al.
patent: 5818956 (1998-10-01), Tuli
patent: 5880976 (1999-03-01), DiGioia, III et al.
patent: 5989700 (1999-11-01), Krivopal
patent: 5993400 (1999-11-01), Rincoe et al.
patent: 6032542 (2000-03-01), Warnick et al.
patent: 6136412 (2000-10-01), Spiewak et al.
patent: 6207775 (2001-03-01), Marti et al.
patent: 6216545 (2001-04-01), Taylor
patent: 6267011 (2001-07-01), Kurtz et al.
patent: 6273863 (2001-08-01), Avni
patent: 6283829 (2001-09-01), Molnar
patent: 6319293 (2001-11-01), Debe et al.
patent: 6441084 (2002-08-01), Lee et al.
patent: 6447448 (2002-09-01), Ishikawa et al.
patent: 6524742 (2003-02-01), Emanuel et al.
patent: 6543299 (2003-04-01), Taylor
patent: 6583630 (2003-06-01), Mendes et al.
patent: 6693441 (2004-02-01), Lane et al.
patent: 6769313 (2004-08-01), Weiss
patent: 6877385 (2005-04-01), Fang et al.
patent: 7080562 (2006-07-01), Knowles et al.
patent: 7097662 (2006-08-01), Evans, III et al.
patent: 7162322 (2007-01-01), Arbogast
patent: 7182736 (2007-02-01), Roy et al.
patent: 7258026 (2007-08-01), Papakostas et al.
patent: 7311009 (2007-12-01), Kotovsky
patent: 7377944 (2008-05-01), Janusson et al.
patent: 7406386 (2008-07-01), Brett et al.
patent: 7470288 (2008-12-01), Dietz et al.
patent: 2003/0069644 (2003-04-01), Kovacevic et al.
patent: 2004/0019382 (2004-01-01), Amirouche et al.
patent: 2004/0019384 (2004-01-01), Kirking et al.
patent: 2004/0064191 (2004-04-01), Wasielewski
patent: 2005/0010302 (2005-01-01), Dietz et al.
patent: 2005/0177170 (2005-08-01), Fisher et al.
patent: 2005/0273170 (2005-12-01), Navarro et al.
patent: 2006/0047283 (2006-03-01), Evans et al.
patent: 2007/0234819 (2007-10-01), Amirouche et al.
patent: 2008/0065225 (2008-03-01), Wasielewski et al.
Clark, Andrew. Summer Internship. Available online Sep. 21, 2003. Accessed Jan. 26, 2010 <http://web.archive.org/web/20030921125459/http://www.clemson.edu/agbioeng/bio/andrew.htm>.
958-203, DuPont Material Safety Data Sheet. Original 2003. Available Apr. 24, 2006 online. <http://www.customcoatingsinternational.com/958-203—051128—2—MSDS.pdf>.
Abstract—Measurement of Dynamic Contact Area and Lubrication Modes in a Highly Conforming and Standard Conforming Tibial Insert Using Polymeric Doping Technology, A. C. Clark, J. D. DesJardins, T. B Pace, and M. LaBerge, Transactions of the 51stAnnual Meeting of the Orthopaedic Research Society, vol. 30, 0568, Jan. 2005, 1 page.
Article—Analysis of the effect of pressure on compression moulding of UHMWPE, N. C. Parasnis and K. Ramani, Journal of Materials Science: Materials in Medicine, vol. 9, 1998, pp. 165-172.
Article—Ultra-High Molecular Weight Polyethylene, Stephen Li and Albert H. Burstein, The Journal of Bone and Joint Surgery, vol. 76-A, No. 7, Jul. 1994, pp. 1080-1090.
Andrew Clark, “Summer Internship in the Department of Bioengineering at Clemson University”, Poster displayed Apr. 2001.

Affiliated with

Also associated with

Rating

Contact sensors and methods for making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Contact sensors and methods for making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contact sensors and methods for making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4205011