US2736314A - Cervical brace - Google Patents

Description

Feb. 28, 1956 R.' H. HALE CERVICAL BRACE Filed April 15, 1953 INVENTOR. 774/7141? f/z/e.

BY hm United States Patent CERVICAL BRACE Randall H. Hale, Los Angeles, Calif.

Application April 13, 1953, Serial No. 348,421

1 Claim. (Cl. 128-87) This invention relates to cervical appliances for immobilizing the cervical spine.

The conventional cervical appliances are constructed of metal with the weight-bearing surfaces, including the chin cup, occipital support, and the posterior and anterior sections, being padded with felt and covered with soft leather. These known appliances are unsanitary in use, since they cannot be washed, do not permit full posterior and anterior traction and, being of metal construction, do not permit X-ray observation with the appliance in use.

It is an object of the present invention to provide an improved cervical appliance, which is of relatively light weight construction, is washable, permits X-ray observation while in use on a patient, and which provides for the obtaining of full posterior and anterior traction adjustment.

Further objects and advantages of the invention, residing in the construction, combination and arrangement of parts, will appear clear from consideration of the following description with reference to the accompanying drawings and from the appended claim.

In the drawings:

Fig. 1 is a perspective front view of a cervical appliance in accordance with this invention, as worn upon a patient,

Fig. 2 is a rear perspective view of the appliance as seen in Fig. 1, and

Fig. 3 is an enlarged section on the line III-III of Fig. 2.

Referring to the drawings, the improved cervical appliance comprises a chin support cup, indicated generally at 10, a neck (occipital) support part, indicated generally at 12, chest and back support parts, indicated generally at 14 and 16, and commonly referred to as the posterior and anterior sections, respectively, sideneck adjustment straps 18, shoulder andunderarm straps 20 and adjustable tension rod assembles, indicated generally at 22.

The chin cup, occipital, posterior and anterior parts of this improved appliance each have the same general construction illustrated in Fig. 3, in that each said part is formed by anoutside sheet 24 of thermosplastic material to which there is secured abacking pad 26 havingperipheral edge portions 28 which extend beyond the peripheral edges of their corresponding thermoplastic sheets and follow the contour of these sheets.

Very satisfactory results have been obtained with the use of thermoplastic material sold under the registered trade mark Plexiglas and with the use of backing pads of foam rubber. Plexiglas is light transmitting, washable, of relatively light weight, and is responsive to heat, applied for example by a heat lamp, including an infrared lamp, to enable the sheets to be accurately and closely formed to shape. The side straps 18, and the shoulder andunderarm straps 20, are all separately formed from washable material and are completely detachable from their respectivebody support parts 10, 12, 14 and 16.

For attaching the straps to their respective parts I employ press stud fasteners, indicated generally at 30, and each composed of afemale part 32 andamale part 34. Where the straps are provided with adjustmentbuckles p CC 36, each buckle incorporates at the rear, one part of such a press stud fastener.

One part of each fastener, being the male part as shown in the drawings, is secured in ahole 38 formed in thethermoplastic sheet 24 and has its rear end covered by thebacking pad 26. The other part, being thefemale part 32 in this instance, is secured upon the end portions of the separate straps.

The shoulder andunderarm straps 20 may be made from webbing material and fitted with a flattubular section 20 of rubber, or rubber-like material, for engaging under the patients arm.

Both the anterior andposterior parts 14 and 16 are of similar size and configuration and each has four corner ear portions where the fastener means are applied for the attachment of the straps, with the traction being readily adjustable by actuation of thebuckles 36 at the four corners of the anterior part 14.

The side.straps 18 connecting thechin cup 10 and theoccipital support 12 haveadjustment buckles 36 accessible at the chin cup, whereby all strap adjustments are capable of being effected in front of the patient.

Referring to the tension rod assemblies 22, a pair of such assemblies are provided at the back and at the front, with the assemblies of each pair being laterally spaced. The front pair is connected between thechin cup 10 and the anterior part 14 while the rear pair is connected between theoccipital part 12 and theposterior part 16. Each such assembly comprises a metal rod40 secured at one end, as by rivets, to the thermoplastic part of the chin cup or occipital part and having a screw threaded end portion 42 on which anadjustment nut 44 is mounted. Each screw threaded rod end portion 42 fits slidably into the upper end of a tube 46, secured at its outer end, as by rivets, to the thermoplastic part of the anterior or posterior part. The effective length of the tension rods constituted by these rods and tubes is readily adjustable by manipulation of thenuts 44.

Having thus described my invention what I claim as novel and wish to secure by Letters Patent is as follows:

A cervical appliance comprising a chin cup, an occipital part and anterior and posterior sections, all of light transmitting thermoplastic material, presenting a front sheet to their respective parts and including a backing pad, said pads having free edge portions protruding beyond the edges of the thermoplastic sheets, separate adjustable straps for connection between said chin cup and the occipital part on each side of a patients neck, means detachably connecting said straps with said chin cup and occipital part, separate adjustable shoulder and underarm straps for connection with said anterior and posterior parts, means detachably connecting said straps with said anterior and posterior parts, tension rods connected between the chin cup and the anterior section and between the occipital part and the posterior section, and means securing said rods upon the thermoplastic material of said parts, said tension rods including means for adjusting the effective length of the rods.

References Cited in the file of this patent UNITED STATES PATENTS Ward Nov. 26, 1940 OTHER REFERENCES

Images