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Publication numberUS3569713 A
Publication typeGrant
Publication dateMar 9, 1971
Filing dateFeb 5, 1969
Priority dateFeb 5, 1969
Publication numberUS 3569713 A, US 3569713A, US-A-3569713, US3569713 A, US3569713A
InventorsVia William F
Original AssigneeVia William F
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Thyroid gland x-ray protector
US 3569713 A
Abstract  available in
Images(1)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

I i United States Patent 13,569,713

[72] inventor William F. Via, Jr. 5 Reference cit d 15 Clark Drive, Hartford, Conn. 06120 UNITED STATES PATENTS [2]] Appl. No. 796,726 7 3,052,799 9/1962 Hollands 250/ 108FS [22] Filed Feb. 5, 1969 96 h n 2 0 10 F [45} Patented Man 9,1971 3,233,248 2/1 6 Bus ne 5 8 S 1 3,286,094 ll/l966 Pretto 250/108FS Primary Examiner-Archie R. Borchelt Attorney-Harness, Dickey & Pierce [54] THYROID GLAND X-RAY PROTECTOR 2 Clams 7 Drawmg ABSTRACT: The X-ray protector for the thyroid gland is in [52] U.S. Cl 250/108, the form of a shield which covers the forward portion of the 2/2 neck over and above the larynx for shielding the thyroid gland [5 1] Int. Cl. G2lf 1/12 from primary and secondary rays from an X-ray machine. The [50] Field of Search 250/[08 material of the shield is formed from sandwiched layers of (F8); 2/2, 2.5 vinyl or other plastic, with a leaded layer therebetween.

THYROID GLAND X-RAY PROTECTOR BACKGROUND OF THE INVENTION There is no known type of shield as provided by the present invention for the purpose of shielding the thyroid gland of a dental patient when the teeth are X-rayed.

SUMMARY OF THE INVENTION The thyroid gland may be harmed by the primary and secondary rays from an X-ray machine especially the glands of children. The shield is formed from a material which bars most of the rays and which is procurable in the trade. One form of the material can be obtained from Bar-Ray of Brooklyn, NY. The material comes as a trilayer sheet having a top and bottom layer of plastic such as vinyl and a central layer of a similar or different plastic in which fine particles of lead are retained in sheet form. A shield is cut from the sheet material of such shape that it encompasses the entire frontal area of the neck from the chin down to the sternum covering the larynx and the thyroid gland. The shield protects the area from the X-ray when used in the head area, particularly when used on the teeth. The shield herein illustrated is of arcuate shape at the bottom and top edges cut in a manner to use a minimum amount of material for a plurality of the shields. The extending ends of the shield may be secured together in any manner, such as by a clip which clamps the two ends in fixed relation to each other. Snap fasteners may be applied to the ends with a plurality of the male type on one of the ends and a female type on the other end. A stick-type plastic layer may be placed on facing sides of the ends which secure the ends in releasable fixed relation to each other. Strips of vinyl or other plastic material may be secured to the edges of the shield body which may be tied or otherwise secured together.

BRIEF DESCRIPTION OF THE. DRAWING FIG. 1 is a broken view in elevation of a dental patient having a protective shield of the present invention secured over the frontal neck area;

FIG. 2 is a broken plan view of a sheet of protective material with the shields of the present invention cut therefrom;

FIG. 3 is a plan view of the shield after it has been stamped from a sheet of the protective material;

FIG. 4 is a broken sectional view of the structure illustrated in FIG. 3, taken on the line 4-4 thereof;

FIG. 5 is a broken view of the shield illustrated in FIG. 3, with snap fasteners on the projecting ends which secure the shield in protective position;

FIG. 6 is a view of structure, similar to that illustrated in FIG. 5, showing another form of securing means; and

FIG. 7 is a view of a shield having securing strips attached to the edges thereof.

DESCRIPTION OF THE PREFERRED EMBODIMENT The X-ray protective shield 11, as illustrated in FIG. 1, is secured about the neck of a dental patient in position to cover all of the front portion of the neck including the larynx and the thyroid gland. In the illustration, the top edge of the shield engages the underside of the chin while the bottom edge thereof rests upon the sternum. The primary protection provided by the shield is that for the thyroid gland which may be permanently damaged from repeated application of X-rays thereto. A well-informed dentist will avoid the application of the X-ray to the teeth of small children because of the possible damage to the thyroid gland and the present shield simplifies the decision for the dentist to make when the question to X- ray or not to X-ray occurs.

The shields 11 are stamped from a sheet of X-ray protective material 10 in such manner as to obtain the maximum number of shields from a sheet of predetermined width and length, as illustrated in FIG. 2. The shield is of cre scent shape having an arcuate top edge 12 and an arcuate bottom edge 14 which may be struck on the same or sli htly different radii. Projectmg ends 14 and 15 of the shie'l 11 are secured together by suitable means to retain the shield in a protective position over the front portion of the neck, as clearly illustrated in FIG. 1.

A sheet of protective material 10, as illustrated in FIG. 4,

has a central layer 16 which is made by the use of a plastic binder for lead dust or particles which are retained in flexible sheet form and which contain a maximum amount of lead within the layer. Layers 17 and 18 of a similar or different plastic material is adhered to both surfaces of the central layer 16 to form a sandwiched relationship therewith which strengthens and protects the inner layer 16 against damage. The shield formed from the sheet bars the passage of the majority of the primary rays and, most of all, the secondary rays emitted from an X-ray machine. v

As illustrated in FIG. 1, a clip 21 of the spring pressed pincher type is used to secure the two ends 14 and 15 together. This type of clip is usually found in any dentists office and is otherwise readily available. In FIG. 5, a snap button 22 is illustrated as being applied to the end 14 of the shield while the end .15 has a plurality of projecting mm 23 to which the button 22 is selectively securable. In FIG. 6, both of the ends 14 and 15 are shown as having adhering strips of plastic material 24 thereon which upon contact releasably secures the strips to each other and the ends 14 and 15 in releasable fixed relation. In FIG. 7, a shield 25 is illustrated having the ends 14 and 15 omitted and in the place thereof ties 26 are heat sealed or otherwise attached for drawing the shield about the neck and securing it in fixed relation thereto. It is evident from the various types of securing means herein illustrated that there are other types suitable in the art which could be employed to support the shield directly over the larynx and the thyroid gland from the chin to the sternum to provide desired protection for the thyroid gland from the- X-rays.

I claim:

1. In a thyroid gland protector, a shield made of a material substantially impervious to X-rays having a width at the center to extend from the chin to the sternum and to encompass the forward area of the neck as a collar so as to shield the larynx and the thyroid gland from X-rays applied thereabove to the teeth, the material of the shield at the ends extending beyond the back of the neck so that the ends can contact each other, and means for securing the contacted ends of the shield together at the back of the neck to retain the shield in said position at the front of the neck and provide protection circumferentially thereabout.

2. In a thyroid gland protector as recited in claim 1, wherein the shield is of crescent shape having mateable top and bottom arcuate edges which blend into ends which are securable together.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3052799 *Apr 10, 1959Sep 4, 1962Bar Ray Products IncRadiation protection garment
US3233248 *Apr 19, 1963Feb 8, 1966Bushnell Francis LRadiation protective apron
US3286094 *Mar 24, 1964Nov 15, 1966Pretto John IRadiation energy shield protecting a body area of a patient from x-rays and the like
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3793528 *Aug 7, 1972Feb 19, 1974Takeda TA gadget case for a camera
US3845316 *Mar 21, 1973Oct 29, 1974Tureck ARadiation resistant container
US3883749 *Aug 15, 1972May 13, 1975Arco Nuclear CoRadio opaque gloves
US4021862 *Jun 2, 1975May 10, 1977Nuclear Associates, Inc.Radiation eye shield
US4220867 *Jul 18, 1978Sep 2, 1980Bloch Winston N JrNeck x-ray protective shield
US4286170 *Feb 11, 1980Aug 25, 1981Samuel MotiX-Ray face mask and chest shield device
US4324003 *Apr 24, 1980Apr 13, 1982Tony JohnstonThroat guard
US5012114 *Jun 28, 1989Apr 30, 1991Charles H. YankeRadiation shield
US5045708 *Aug 15, 1990Sep 3, 1991Cooper William IRadiation shield for protecting internal body organs
US5419342 *Feb 14, 1994May 30, 1995Scott; Christina M.Adjustable radiation shield assembly for protecting the breast of a patient
US5592527 *Jul 19, 1995Jan 7, 1997Ray; Michael A.Identification marker for x-ray film with carrying case
US5638545 *Sep 18, 1995Jun 17, 1997Rosner; Neal H.Article for radiology protection
US6281515Dec 7, 1998Aug 28, 2001Meridian Research And DevelopmentLightweight radiation protective garments
US6320938Oct 28, 1998Nov 20, 2001F & L Medical ProductsMethod of X-ray protection during diagnostic CT imaging
US6459091Aug 27, 2001Oct 1, 2002Meridian Research And DevelopmentLightweight radiation protective garments
US6828578Sep 9, 2002Dec 7, 2004Meridian Research And DevelopmentLightweight radiation protective articles and methods for making them
US6841791Jul 16, 2003Jan 11, 2005Meridian Research And DevelopmentMultiple hazard protection articles and methods for making them
US7258484 *Dec 15, 2005Aug 21, 2007Palodex Group OyProtective garment
US7476889Dec 20, 2004Jan 13, 2009Meridian Research And DevelopmentRadiation detectable and protective articles
US8334524Jan 9, 2009Dec 18, 2012Meridian Research And DevelopmentRadiation detectable and protective articles
US20040262546 *Jun 25, 2003Dec 30, 2004Axel ThiessRadiation protection material, especially for use as radiation protection gloves
US20050211930 *Dec 20, 2004Sep 29, 2005Meridian Research And DevelopmentRadiation detectable and protective articles
EP0173757A1 *Sep 1, 1984Mar 12, 1986STB Strahlentechnische Bilddiagnostik Heinz FleckApron-like mask for X-ray photography
EP0566315A1 *Apr 7, 1993Oct 20, 1993Bradley BarnesUltra-violet ray shield
Classifications
U.S. Classification250/516.1, 976/DIG.336, 2/468
International ClassificationG21F3/00, G21F3/02
Cooperative ClassificationG21F3/02
European ClassificationG21F3/02