Surgery – Radioactive substance applied to body for therapy – Radioactive substance placed within body
Patent
1994-10-11
1996-01-16
Sykes, Angela D.
Surgery
Radioactive substance applied to body for therapy
Radioactive substance placed within body
A61N 500
Patent
active
054843847
ABSTRACT:
A minimally invasive medical device (10, 23, 31, 40, 41, 46, 49) for providing a selected and controlled radiation dosage to the vascular system of a patient. The device includes an outer sheath (15) with an inner elongated member (55) slidably disposed in the passage (59) of the outer sheath. The inner elongated member has an expandable distal portion (11) of spring wires (12, 13) looped about a distal end 14 of the inner elongated member. The inner elongated member also includes a proximal portion (17) extending from the proximal end (58) of the outer sheath for extending and withdrawing the expandable distal portion from the distal end (56) of the outer sheath. The spring wires of the expandable distal portion include a radiation source (18) alloyed with or disposed around the spring wires. The inner elongated member also alternatively includes a catheter (60) with an inflatable balloon (38) forming the expandable distal portion thereof.
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"Wire Guides", Cook Diagnostic Interventional Products for Radiology, Cardiology and Surgery, Cook Incorporated, Bloomington, Ind., 1986, pp. 3, 6, and 18.
"Stone Removal", Cook Diagnostic Interventional Products for Radiology, Cardiology, and Surgery, Cook Incorporated, Bloomington, Ind., 1986, pp. 1, 3, and 5.
"Intravascular Retrieval", Cook Diagnostic Interventional Products for Radiology, Cardiology, and Surgery, Cook Incorporated, Bloomington, Ind., 1986, p. 3.
Godlewski Richard J.
MED Institute, Inc.
Sykes Angela D.
Winakur Eric F.
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