Surgery – Diagnostic testing – Sensitivity to vibration
Patent
1997-05-20
1998-11-17
Hindenburg, Max
Surgery
Diagnostic testing
Sensitivity to vibration
600553, 600587, A61B 500
Patent
active
058368914
ABSTRACT:
A non-destructive and non-invasive method and apparatus determines the structural integrity of discrete pieces of material, such as bone, medical implants and structural parts by determining the impact ratio of a striking mass that impacts and rebounds from the material. The impact ratio is equal to the ratio of instantaneous velocity of the striking mass immediately after the impact to the instantaneous velocity of the striking mass immediately prior to impact. A means can be used to force the striking mass towards the material to impact the material. In this case, the measured history of the displacement during the impact and the rebound are used to compute the impact ratio, the ratio being directly related to the impact reaction of the material. The impact ratio can be used to determine the structural integrity of the material or the onset of osteoporosis. The impact ratio can also be compared with previous measurements of the same piece of material or with standardized values of impact ratios to monitor changes in the impact reaction of the discrete piece of material for the diagnosis of incipient failure in the material and monitor the structural integrity of the piece of material.
REFERENCES:
patent: 3482486 (1969-12-01), Nordhelm, Jr.
patent: 3509734 (1970-05-01), Lederer
patent: 3815407 (1974-06-01), Laverey
patent: 4006626 (1977-02-01), Ruzicka et al.
patent: 4031744 (1977-06-01), Flannelly
patent: 4289023 (1981-09-01), Rader
patent: 4342229 (1981-09-01), Massa
patent: 4526465 (1985-07-01), Corti et al.
patent: 4641527 (1987-02-01), Hiroi et al.
patent: 4723448 (1988-02-01), Veligdan
patent: 4754763 (1988-07-01), Doemland
patent: 4799498 (1989-01-01), Collier
patent: 4823601 (1989-04-01), Barna
patent: 4824250 (1989-04-01), Newman
patent: 4928527 (1990-05-01), Burger et al.
patent: 5006984 (1991-04-01), Steele
patent: 5227982 (1993-07-01), Kipple et al.
patent: 5245862 (1993-09-01), Zeiss
patent: 5402781 (1995-04-01), Dimarogonas
patent: 5432834 (1995-07-01), Gershman
patent: 5476009 (1995-12-01), Dimarogonas
patent: 5484388 (1996-01-01), Bassett et al.
patent: 5594775 (1997-01-01), Hangartner
patent: 5602486 (1997-02-01), Novak
patent: 5603325 (1997-02-01), Mazess et al.
Denk Paul M.
Hindenburg Max
Wingood Pamela L.
LandOfFree
Method and apparatus for determining the density and structural does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for determining the density and structural , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining the density and structural will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-879142