Surgery – Diagnostic testing – Measuring anatomical characteristic or force applied to or...
Reexamination Certificate
2006-08-29
2006-08-29
Marmor, Charles (Department: 3736)
Surgery
Diagnostic testing
Measuring anatomical characteristic or force applied to or...
C600S561000, C073S081000
Reexamination Certificate
active
07097625
ABSTRACT:
A system and method are disclosed for noninvasively diagnosing limb compartment syndrome by measuring a quantitative modulus of hardness. In the preferred embodiment, a nonmovable pressure probe mounted in the center of a movable spring loaded platform is applied against a limb compartment. Force is gradually applied to the probe and the platform, compressing a limb compartment. Pressure on the probe is measured as the probe pushes into the limb. The spring loaded platform displaces, and the distance of the probe tip to the platform is measured. This distance is the depth of compression into the limb by the probe. The relationship of incremental pressures in the probe and the corresponding distance of the probe tip to the platform for each pressure is plotted. A linear regression analysis is preformed whose slope forms a quantitative modulus of hardness.
REFERENCES:
patent: 3680386 (1972-08-01), Canon
patent: 4159640 (1979-07-01), Leveque et al.
patent: 4739769 (1988-04-01), Matthews et al.
patent: 4817629 (1989-04-01), Davis et al.
patent: 5038795 (1991-08-01), Roush et al.
patent: 5224469 (1993-07-01), Mocny
patent: 5564435 (1996-10-01), Steinberg
patent: 5879312 (1999-03-01), Imoto
patent: 6063044 (2000-05-01), Leonard et al.
patent: 6186962 (2001-02-01), Lloyd et al.
patent: 6659967 (2003-12-01), Steinberg
patent: 156649 (1961-07-01), None
Horikawa, Ebihoras, Sakai F. Akiyama M.; Non-Invasive Measurement Method for Hardness in Muscular Tissue; Medical & Biological Engineering & Computing—Nov. 1993.
Whiteside, Jr., Thomas E., “Tissue Pressure Measurements as a Determinant of the Need for Fasciotomy”, Clin. Orthop., 113:43, 1975.
Steinberg et al., Bruce, “Evaluation of Limb Compartments with Suspected Increased Interstitial Pressure,” Clin. Orthop. No. 300, pp. 248-253, 1994.
Horikawa, Ebihoras, Sakai F. Akiyama M., Non-Invasive Measurement Method for Hardness in Muscular Tissue; Medical & Biological Engineering & Computing—Nov. 1993.
Fischer, Andrew “Tissue Compliance Meter for Objective, Quantitative Documentation of Soft Tissue Consistency and Pathology” Arch Phys Rehabil. vol. 68, Feb. 1987, pp. 122-125.
Steinberg, Bruce D. “Evaluation of Limb Compartments with Increased Interstitial Pressure, An Improved Noninvasive Method for Determining Quantitative Hardness” Journal of Biomechanics (2005) 1629-1635.
Holland & Knight LLP
Marmor Charles
NCSE, LLC
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