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Publication numberUS3154072 A
Publication typeGrant
Publication dateOct 27, 1964
Filing dateJan 9, 1963
Priority dateJan 9, 1963
Publication numberUS 3154072 A, US 3154072A, US-A-3154072, US3154072 A, US3154072A
InventorsMack Louis P
Original AssigneeMack Louis P
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sacroiliac belt
US 3154072 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Oct. 27, 1964 L.. P. MACK 3,154,072

SACROILIAC BELT Filed Jan. 9, 1965 United States Patent O 3,154,072 SACRQILIAC BELT Louis P. Mack, 549 W. Randolph St., Chicago, Ill. Filed .Ian. 9, 1963, Ser. No. 250,410 4 Claims. (Cl. 12S- 78) This invention relates to an improved sacroiliac belt.

In situations where a pain is suffered in the lower back region, a belt is often prescribed which carries a pad which exerts pressure on the ligaments in that region, thus taking a strain off of the ligaments.

Difficulty has been encountered in maintaining the pad in the desired location. The belt as a whole often tends to shift sideways, or even up and down, in the course of the normal daily activities of the patient.

It is an object of the present invention to provide a sacroiliac belt in which the pad tends to maintain its position to a much greater extent than in the case of prior devices.

Other objects, features and advantages of my invention will become apparent as the description proceeds.

With reference now to the drawings in which like reference numerals designate like parts:

FIG. 1 is a perspective view of a preferred embodiment of my invention;

FIG. 2 is an enlarged elevation of the pad;

FIG. 3 is a horizontal section taken along line 3-3 of FIG. 2; and

FIG. 4 is a vertical section taken along line 4-4 of FIG. 2.

The sacroiliac belt includes a flexible belt member made of suitable fabric or webbing, and preferably it is elastic. The belt is provided with a suitable buckle 11 which includes an adjustment so that the belt may be adjusted to persons of different sizes.

The buckle is located at the front of the belt, and at the rear of the belt is a pad 12 of elongate shape. The pad 12 is secured to the belt member 10 by stitching 13. The stitching is in the form of a rectangle as shown in FIG. 2.

The pad 12 is preferably made of a compressible foam rubber, and the stitching 13 divides the inner surface of the pad into a marginal portion 14 and a central portion 15. The stitching is effected in such a manner that it compresses the material of the pad 12 at the point of stitching so as to form a groove 16. The compression of the pad at the point of stitching causes the marginal portion 14 to be tilted away from the belt and toward the body of the wearer. It also imparts a generally convex shape to the surface of the central portion 15.

It has been found that the tilted up edges in combination with the convex surface of the central portion engage 3,154,072 Patented Get. 27, 1964 ICC the body in such a manner as to greatly increase the frictional coeicient between the body and the surface of the pad. The frictional coefficient is increased to such an extent that the pad will maintain its position all day long.

The exact reason for this is not fully understood, but it is believed that the inclination of the marginal portion 14 causes the corner 17 to be urged into contact with the body in such a manner as to resist sliding forces to a much better degree than if the marginal portion were not thus inclined.

Also tests have indicated that a slight vacuum is developed in the groove 16 when the pad is applied to the flesh of the back. This vacuum is of the order of from 5 to l0 millimeters of mercury.

It has also been found that this nonsliding effect does not occur when the pad is secured to the belt by one or more rows of stitching which extend for the full length of the pad and intersect the side edges.

Although only a preferred embodiment of my invention has been shown and described herein, it is apparent that various modifications and changes may be made in the construction shown without departing from the spirit of my invention as defined in the appended claims.

I claim:

l. A sacroiliac belt comprising a belt member, a buckle securing the belt in a closed position, a foam rubber pad mounted on the belt, and stitching for securing said pad to the fabric of said belt member, said stitching being in the form of a closed figure to divide the outer surface of said belt into a marginal portion and a central portion, said stitching serving to compress said pad at the point of stitching, said marginal pad portion being tilted away from said belt member, and said central portion being generally convex.

2. A sacroiliac belt as claimed in claim l in which said pad is elongated and in which said stitching is in the form of a rectangle.

3. A sacroiliac belt as claimed in claim l in which said belt member is elastic.

4. A sacroiliac belt as claimed in claim l in which the pores of said foam rubber are not connected with each other so that a partial vacuum can be developed between the body of the wearer and the outer surface of said pad at the point of stitching.

References Cited in the le of this patent UNITED STATES PATENTS 1,915,753 OShea June 27, 1933 2,449,641 Cidissen Sept. 2l, 1948 2,749,550 Pease June l2, 1956

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1915753 *May 26, 1932Jun 27, 1933O'shea Dennis CPad
US2449641 *Aug 9, 1946Sep 21, 1948John CidissenAbdominal support
US2749550 *Oct 28, 1954Jun 12, 1956Surgical Appliance IndAbdominal support
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3578773 *Oct 28, 1968May 18, 1971Schultz August LSupportive orthopedic device
US3586001 *Nov 22, 1968Jun 22, 1971Sanderson Dewey S CMedical compress
US4175548 *Aug 30, 1977Nov 27, 1979Harry A. WoodMassage back brace
US4348774 *Jul 18, 1980Sep 14, 1982The Christian Leather Company, Inc.Weight lifter's belt
US4384372 *Jul 21, 1980May 24, 1983Rector Michael HBack support belt attachment
US4608716 *Aug 20, 1982Sep 2, 1986Michael BrumfieldSafety jump suit uniform and lifting mechanism for miners and other workers
US4616639 *Jan 10, 1984Oct 14, 1986Huber William COrthopedic belt with leg supports
US4796315 *Jan 27, 1986Jan 10, 1989Crew Randolph ERotationally contoured lumbar cushion
US4991573 *Mar 26, 1990Feb 12, 1991Miller Donald LOrthopedic support belt
US5060639 *Jan 31, 1990Oct 29, 1991Helen A. SiudylaBack support
US7628813Oct 20, 2003Dec 8, 2009Cervitech, Inc.Cervical intervertebral prosthesis system
US8062369Jul 8, 2008Nov 22, 2011Cervitech, Inc.Cervical intervertebral prosthesis system
US20040203318 *Jan 14, 2004Oct 14, 2004Smith R. ScottDevices for relieving pelvic discomfort
US20050085911 *Oct 20, 2003Apr 21, 2005Cervitech, Inc.Cervical intervertebral prosthesis system
US20050251075 *Jul 12, 2005Nov 10, 2005Smith R SDevices for relieving pelvic discomfort
US20080269905 *Jul 8, 2008Oct 30, 2008Cervitech, Inc.Cervical intervertebral prosthesis system
WO2011121154A1 *Mar 29, 2011Oct 6, 2011PARRALES HERNÁNDEZ, LeticiaBody massager
U.S. Classification602/19, 128/117.1
International ClassificationA61F5/02
Cooperative ClassificationA61F5/028
European ClassificationA61F5/02G