Surgery – Truss – Pad
Patent
1993-05-03
1995-03-14
Pellegrino, Stephen C.
Surgery
Truss
Pad
128749, A61B 500
Patent
active
053968972
ABSTRACT:
A method for locating a lesion within a tissue mass, includes steps of measuring a selected parameter at two or more points in at least one path through the tissue mass, the measure of the selected parameter in a lesion being different from that in normal tissue. Also, apparatus for measuring a tissue parameter at two or more points in at least one path through the tissue mass includes an insertion needle, distally sharpened and made sufficiently rigid so that it can be inserted distal end foremost into the tissue mass along the path, and, insertible with the needle, a sensor capable of prodding a measure of the tissue parameter at a point in the tissue mass along the path. Where the parameter is selected as one that has a measure different in a lesion type, the apparatus can be used in carrying out the method, whereby a measure at a point in the tissue mass of the selected tissue parameter provided by the sensor indicates that the point is within a lesion. In an embodiment for measuring interstitial fluid pressure in the tissue mass, the sensor includes a tube slidably engageable within the lumen of the insertion needle; the sensor tube is closed at a distal end, and the walls of the sensor tube and the insertion needle are prodded distally with ports, positioned in relation to the respective distal ends such that when the sensor tube is engaged within the insertion tube lumen the ports can be substantially aligned to provide fluid communication between the lumen of the sensor tube and the tissue adjacent the ports; the sensor tube lumen contains a plurality of filaments, and is operationally connected to a pressure measurement deuce such that the pressure measurement deuce is responsive to fluid pressure within the sensor tube lumen.
REFERENCES:
patent: 4162673 (1979-07-01), Patel
patent: 4192319 (1980-03-01), Hargens et al.
patent: 4565200 (1986-01-01), Cosman
patent: 4616656 (1986-10-01), Nicholson et al.
patent: 4682605 (1987-07-01), Hoffman
patent: 4790329 (1988-12-01), Simon
patent: 4799494 (1989-01-01), Wang
patent: 4799495 (1989-01-01), Hawkins et al.
patent: 4940458 (1990-07-01), Cohn
patent: 4986279 (1991-01-01), O'Neill
patent: 5018530 (1991-05-01), Rank et al.
patent: 5059197 (1991-10-01), Urie et al.
patent: 5078137 (1992-01-01), Edell et al.
patent: 5222953 (1993-06-01), Dowaltshahi
Thompson et al "Tumor detection using . . . " 1979 IEEE International Microwave Symposium Digest, pp. 39-44.
Fadnes, et al., "Interstitial Fluid Pressure in Rats Measured With a Modified Wick Technique" 1977, Microvascular Res., vol. 14, pp. 27-36.
Boucher, et al., "Interstitial Pressure Gradients in Tissue-Isolated and Subcutaneous Tumors: Implications for Therapy", Aug. 1, 1990, Cancer Res., vol. 50, pp. 4478-4484.
Young, et al., "The Significance of the Tissue Pressure of Normal Testicular and of Neoplastic (Brown-Pearce Carcinoma) Tissue in the Rabbit", 1950, J. Path. Bact., vol. LXII, pp. 313-333.
Boucher, et al., "Interstitial Hypertension in Superficial Metastatic Melanomas in Humans", Nov. 8, 1991, Cancer Res., vol. 51, pp. 6691-6694.
Roh, et al., "Interstitial Hypertension in Carcinoma of Uterine Cervix in Patients: Possible Correlation With Tumor Oxygenation and Radiation Response", Nov. 8, 1991, Cancer Res., vol. 51, pp. 6695-6698.
Kopans, et al., "A Modified Needle-Hookwire Technique to Simplify Preoperative Localization of Occult Breast Lesions", 1980, Radiology, vol. 134, p. 781.
Meyer, et al., "Preoperative Roentgenographically Guided Percutaneous Localization of Occult Breast Lesions", Jan. 1982, Arch. Surg., vol. 117, pp. 65-68.
Boucher Yves
Jain Rakesh K.
Kopans Daniel B.
Moore Richard
Stacy-Clear Adam
Pellegrino Stephen C.
The General Hospital Corporation
Tucker Guy V.
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