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Publication numberUS1494826 A
Publication typeGrant
Publication dateMay 20, 1924
Filing dateSep 29, 1920
Priority dateSep 29, 1920
Publication numberUS 1494826 A, US 1494826A, US-A-1494826, US1494826 A, US1494826A
InventorsViol Charles H
Original AssigneeStandard Chemical Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Radium applicator
US 1494826 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

May zo ,19.24.` 1,494,826

C. H. VIOL RADIUM APPLI'cAToR Filed sept. 29. 192s Patented May 20, 1924-.





Application filed September 29, 1920. Serial N o. 413,519.

To all 'whom 'it may concern:

Be it known that I, CHARLES I-I. Viol., a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Radium Applicators; and I do hereby declare the 'following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improvement in applicators of the needle type and more particularly to such in which the applica.- tion of radioactive rays to various forms of tumor growths is contemplated.

One object of the invention is to so construct a needle applicator for the administration of radium or other radioactive substances to tumor or other growths, that it shall be suiiiciently strong to permit penetration into a tumor without liability of breaking or bending; so that it shall effectually resist corrosion due to the effect of body fluids, and so that the radium or other radioactive substance shall be eiliciently and permanently sealed within the device to guard against possibility of loss.

l/Vith this and other objects in view, the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings, Figure l is a longitudinal sectional view of an applicator embodying my improvement, and Figure 2 is a transverse sectional view.

1 represents the body of the applicator which will preferably be made of steel or some hard strong lnon-corrosive metal or alloy and may be gold plated to guard against corrosion, and I have found that with the use of stainless steel and Monel metal, the gold plating may be dispensed with. The body l of the applicator is provided at its solid end with an eye 2, said solid part of the shaft serving to give a strong vholding grip for the forceps used in inserting the needle,` while the eye serves to hold a thread or wire used to withdraw the needle. The body l is formed with a chamber 3 to contain radium salt or other radioactive compound. One end of this chamber is closed as at 4 and its other end is normally open to permit the insertion of the radium salt or' other radioactive compound, and

after said chamber shall have been charged,

its forward end will be closed by the butt portion 5 of a needle pointjG. The butt 5 of the needle enters the end of the chamber as a plug and will then be soldered or otherwise permanently fixed in place so that it shall become in effect a permanent part of the device and obviate possibility of the escape of the radioactive material or any minute portion thereof.

My improved applicator is substantial in construction and is not liable to breakage or bending and the escape of theexpensive radium salt or radioactive compound isv effectually prevented.

` I-Iaving fully described my invention what I claim as new and desire to secure by Letters Patent, is

l. A radium applicator of the needle type comprising a body portion having a chamber permanently closed at its rear end and a pointed member closing the forward end of said chamber.

2. A metal applicator of the needle type, comprising a rigid body having a chamber for radio-active substance permanentlyV closed at its rear end, and means for permanently closing the forward end of said chamber after the introduction thereinto of the radio-active substance.

3. A metal applicator, comprising a body made from a strong, hard and non-corrosive metal or alloy and having a chamber for radium salt or other radio-active substance, and a needle point having a butt portion entering said chamber and permitting permanent closing of the same.

4L. An applicator, comprising a body made ing witnesses.

CHARLES H. VIOL.' Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3072121 *Jul 24, 1956Jan 8, 1963Nat Tuberculosis AssPellet injector
US3351049 *Apr 12, 1965Nov 7, 1967Hazleton Nuclear Science CorpTherapeutic metal seed containing within a radioactive isotope disposed on a carrier and method of manufacture
US4754745 *Jul 7, 1986Jul 5, 1988Horowitz Bruce SConformable sheet material for use in brachytherapy
US4763642 *Apr 7, 1986Aug 16, 1988Horowitz Bruce SIntracavitational brachytherapy
US4815449 *Mar 30, 1987Mar 28, 1989Horowitz Bruce SDelivery system for interstitial radiation therapy including substantially non-deflecting elongated member
US4897076 *Nov 25, 1985Jan 30, 1990Puthawala Ajmel ADetachable and remote controllable afterloading device for radiation
US6505392 *Apr 11, 1997Jan 14, 2003Interventional Therapies LlcProcess for manufacturing a radioactive source wire for irradiating diseased tissue
US6876712Dec 6, 1999Apr 5, 2005Interventional Therapies, L.L.C.Flexible source wire for localized internal irradiation of tissue
US7648453 *Jul 13, 2006Jan 19, 2010Isodose Control Intellectual Property B.V.Catheter needle for internally irradiating a tumor in a body part
US20070265486 *Jul 13, 2006Nov 15, 2007Isodose Control Intellectual Property B.V.Catheter needle for internally irradiating a tumor in a body part
U.S. Classification600/8, 604/506
International ClassificationA61N5/10, G21G4/00, A61M5/00, G21G4/06
Cooperative ClassificationG21G4/06, A61N5/1027, A61M5/00, A61N2005/1011
European ClassificationA61N5/10B7, A61M5/00, G21G4/06