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Publication numberUS2546761 A
Publication typeGrant
Publication dateMar 27, 1951
Filing dateJan 13, 1950
Priority dateJan 13, 1950
Publication numberUS 2546761 A, US 2546761A, US-A-2546761, US2546761 A, US2546761A
InventorsLoftus George H
Original AssigneeRadium Chemical Company Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Radium nasopharyngeal applicator
US 2546761 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

March 27, 1951 G. H. Lor-"rus 2,546,761

RADIUM NASOPHARYNGEAL APPLI'CATOR Filed Jan. 15, 1950 Patented Mar. 27, 1951 2,546,761 RADI'UM NASPHARYNGEAL APPLICATOR George H. Loftus, Ridgewood, N. J., assigner to Radium Chemical Com N. Y., a corporation of pany Inc., New York, New York Application January 13, 1950, Serial No. 138,360

1 Claim.

My invention pertains to radium nasopharyngeal applicators particularly designed for treatment of lymphoid tissue in the nasopharynx.

In applicators heretofore used for treating lymphoid tissue in the nasopharynx with radium, the radium bearing material has been enclosed in a separate tube which has been threadedly attached to a rod-like handle. The radium carrying tubes of such prior applicators have been of larger diameter than the rod-like handles to which the tubes were threadedly attached so that an enlargement or shoulder was present at the point of connection between these parts.

A primary object of my invention is to provide a new and improved construction for radium nasopharyngeal applicators which eliminates the need for a separate tube for the radium bearing material and a threaded connection between such tube and a rod-like handle.

Another object of my invention is to provide a new and improved radium nasopharyngeal applicator which encloses the radium bearing material in a rod-like part of uniform size and smooth exterior.

A further object of my invention is to provide a new and improved radium nasopharyngeal applicator which may be readily and inexpensively made of conventional materials by the utilization of existing manufacturing procedures.

Other objects and advantages will become apparent as the description proceeds.

In the drawings:

Fig. 1 is a side elevational view on an enlarged scale of a preferred embodiment of my invention;

Fig. 2 is a View similar to Fig. 1 but on a larger scale and with parts cut away to reveal details of internal construction;

Fig. 3 is an enlarged detail sectional View illustrating one way of sealing in the radium bearing material; and

Fig. 4 is a view similar to Fig. 3 but showing another method of sealing in the radium bearing material.

Referring particularly to Fig. 1 it will be seen that my novel applicator comprises an elongated rod Il) of uniform outside diameter and having a smooth external surface throughout its exposed length. The rod I may be formed of Monel metal or other suitable material and is threadedly attached at one end to a handle part I2 as indicated at I4 in Fig. 2. The handle part I2 may be formed of steel or any other suitable material and is preferably provided with a knurled external surface to facilitate nice manipulation of the applicator during a treatment.

The end of the rod I0 which is remote from the metal part I2 is drilled to provide a recess I6 for receiving the radium bearing material I8. The extreme free end of the rod I0 is preferably provided With an internal thread for receiving a (Cl. 12S-1.2)

2 threaded plug such as the plug 2U of Fig. 3 or the plug 22 of Fig. 4.

In the form of construction shown in Fig. 3 the plug 20 may be part of a threaded rod 24 which is screwed into the free end of the rod Il) and then cut one even with the end of the rod i0. Solder 26 may then be applied to the end of the plug 2i? and rod I0 to prevent removal of the plug. This solder is preferably formed to provide a rounded end which facilitates insertion of the applicator without injury to the patients tissues.

In the alternative construction of Fig. 4 the plug 22 has a threaded end of reduced diameter which screws into the end of the rod I0 and an enlarged end of the same diameter as rod I0 which constitutes a continuation thereof. This enlarged end serves as a means for screwing the plug into the rod I0 and as indicated at 28 to facilitate insertion of the applicator into the nasal passages. An annular recess 36 is preferably provided between the endV vof the rod I0 and the enlarged part of the plug 22. This recess is lled with solder to render the plug non-removable.

While I have illustrated and described in detail only two embodiments of my invention, it is to be understood that my invention is not limited to the particular details shown but includes all variations, modifications, and equivalents coming within the scope of the appended claim.

I claim:

A nasopharyngeal applicator for treating with radium comprising an elongated rod of one piece construction and of uniform external diameter, said rod having a handle part at one end and an elongated chamber drilled in the other end thereof, radium bearing material in said chamof said rod terminating in an internally threaded part, and a non-removable closure for said chamber secured to said threaded part and sealing said chamber, said closure and rod `being soldered to form a smooth joint and prevent separation of said closure and rod, said applicator having a smooth outer surface for insertion into a nasal passage and a rounded end surface merging into said rstnamed surface.

GEORGE' H. LOFTUS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS is preferably rounded

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1442051 *May 10, 1921Jan 16, 1923Cummings William LRadium needle
US1565490 *Jun 28, 1922Dec 15, 1925Antoine MuguetApparatus for applying curative treatment with a radioactive substance
US1578945 *Jan 8, 1923Mar 30, 1926Withers Sanford MRadium needle structure
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3674006 *May 1, 1969Jul 4, 1972Atomenergi AbAppliance for interstitial radiation of organs in the body
US3750653 *Sep 8, 1970Aug 7, 1973School Of Medicine UniversityIrradiators for treating the body
US4026275 *Oct 30, 1975May 31, 1977Jablecki Charles KCutaneous sensitivity diagnostic device
US4819618 *Mar 11, 1987Apr 11, 1989Liprie Sam FIridium/platinum implant, method of encapsulation, and method of implantation
US4976680 *Oct 7, 1988Dec 11, 1990Hayman Michael HApparatus for in situ radiotherapy
US5084002 *Aug 4, 1988Jan 28, 1992Omnitron International, Inc.Platinum wire
US5092834 *Oct 12, 1990Mar 3, 1992Omnitron International, Inc.Apparatus and method for the remote handling of highly radioactive sources in the treatment of cancer
US5141487 *Dec 12, 1989Aug 25, 1992Liprie Sam FAttachment of radioactive source and guidewire in a branchy therapy source wire
US5354257 *Jan 29, 1991Oct 11, 1994Med Institute, Inc.Minimally invasive medical device for providing a radiation treatment
US5484384 *Oct 11, 1994Jan 16, 1996Med Institute, Inc.Minimally invasive medical device for providing a radiation treatment
US5575749 *Sep 27, 1990Nov 19, 1996Omnitron International, Inc.Ultra-thin high dose radioactive source wire
US5713828 *Nov 27, 1995Feb 3, 1998International Brachytherapy S.AHollow-tube brachytherapy device
US5800333 *Feb 20, 1996Sep 1, 1998United States Surgical CorporationAfterloader provided with remote control unit
US6019718 *May 30, 1997Feb 1, 2000Scimed Life Systems, Inc.Apparatus for intravascular radioactive treatment
US6059713 *Mar 5, 1998May 9, 2000Scimed Life Systems, Inc.Catheter system having tubular radiation source with movable guide wire
US6059812 *Mar 6, 1998May 9, 2000Schneider (Usa) Inc.Self-expanding medical device for centering radioactive treatment sources in body vessels
US6071227 *Jan 27, 1997Jun 6, 2000Schneider (Europe) A.G.Medical appliances for the treatment of blood vessels by means of ionizing radiation
US6074338 *Jun 28, 1994Jun 13, 2000Schneider (Europe) A.G.Medical appliances for the treatment of blood vessels by means of ionizing radiation
US6099454 *Mar 6, 1997Aug 8, 2000Scimed Life Systems, Inc.Perfusion balloon and radioactive wire delivery system
US6110097 *Mar 6, 1997Aug 29, 2000Scimed Life Systems, Inc.Perfusion balloon catheter with radioactive source
US6117065 *Jun 24, 1998Sep 12, 2000Scimed Life Systems, Inc.Perfusion balloon catheter with radioactive source
US6146322 *Oct 30, 1996Nov 14, 2000Schneider (Europe) AgIrradiating filament and method of making same
US6163947 *Jul 31, 1997Dec 26, 2000International Brachytherapy S.A.Method of making a hollow-tube brachytherapy device
US6203485Oct 7, 1999Mar 20, 2001Scimed Life Systems, Inc.Low attenuation guide wire for intravascular radiation delivery
US6231494Nov 17, 1997May 15, 2001Schneider (Europe) A.G.Medical device with radiation source
US6234951Jan 10, 1997May 22, 2001Scimed Life Systems, Inc.Intravascular radiation delivery system
US6258019Sep 8, 1999Jul 10, 2001Scimed Life Systems, Inc.Catheter for intraluminal treatment of a vessel segment with ionizing radiation
US6264596Nov 3, 1997Jul 24, 2001Meadox Medicals, Inc.In-situ radioactive medical device
US6267775Mar 6, 2000Jul 31, 2001Schneider (Usa) Inc.Self-expanding medical device for centering radioactive treatment sources in body vessels
US6302865Mar 13, 2000Oct 16, 2001Scimed Life Systems, Inc.Intravascular guidewire with perfusion lumen
US6347443Dec 22, 2000Feb 19, 2002International Brachytherapy S.A.Method of making a hollow-tube precursor brachytherapy device
US6352501Sep 23, 1999Mar 5, 2002Scimed Life Systems, Inc.Adjustable radiation source
US6398708Oct 28, 1998Jun 4, 2002Scimed Life Systems, Inc.Perfusion balloon and radioactive wire delivery system
US6398709Oct 19, 1999Jun 4, 2002Scimed Life Systems, Inc.Elongated member for intravascular delivery of radiation
US6413203Sep 16, 1998Jul 2, 2002Scimed Life Systems, Inc.Method and apparatus for positioning radioactive fluids within a body lumen
US6416457Mar 9, 2000Jul 9, 2002Scimed Life Systems, Inc.System and method for intravascular ionizing tandem radiation therapy
US6422989Nov 5, 1999Jul 23, 2002Scimed Life Systems, Inc.Method for intravascular radioactive treatment
US6508754Sep 23, 1998Jan 21, 2003Interventional TherapiesSource wire for radiation treatment
US6514191Jan 25, 2000Feb 4, 2003Schneider (Europe) A.G.Medical appliances for the treatment of blood vessels by means of ionizing radiation
US6582352Jan 2, 2001Jun 24, 2003Schneider (Europe) A.G.Medical appliance for treatment by ionizing radiation
US6599230Mar 14, 2001Jul 29, 2003Scimed Life Systems, Inc.Intravascular radiation delivery system
US6616629Jun 14, 1999Sep 9, 2003Schneider (Europe) A.G.Medical appliance with centering balloon
US6635008Jun 4, 1999Oct 21, 2003Interventional Therapies LlcSystem and method for delivering a medical treatment to a treatment site
US6676590Dec 8, 1997Jan 13, 2004Scimed Life Systems, Inc.Catheter system having tubular radiation source
US6876712Dec 6, 1999Apr 5, 2005Interventional Therapies, L.L.C.Radioactive core; conveying through narrow passageway; sealed housing; thin wire for radiation therapy; anticancer agents
US7530941Feb 2, 2004May 12, 2009Best Medical International, Inc.X-ray and gamma ray emitting temporary high dose rate brachytherapy source
EP0497495A2 *Jan 22, 1992Aug 5, 1992Med Institute, Inc.A minimally invasive medical device
EP0593136A1 *Dec 11, 1990Apr 20, 1994Robert E. FischellDevice for the prevention of arterial restenosis
Classifications
U.S. Classification600/7, 604/57, D24/119
International ClassificationA61N5/10
Cooperative ClassificationA61N2005/1025, A61N5/1014
European ClassificationA61N5/10B4