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US3374785A - Cervical collar - Google Patents

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US3374785A
US3374785A US49442265A US3374785A US 3374785 A US3374785 A US 3374785A US 49442265 A US49442265 A US 49442265A US 3374785 A US3374785 A US 3374785A
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Prior art keywords
collar
material
foam
polyurethane
core
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Expired - Lifetime
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Jr John F Gaylord
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Medical Specialties Inc
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Medical Specialties Inc
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/01Orthopaedic devices, e.g. splints, casts or braces
    • A61F5/04Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
    • A61F5/05Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
    • A61F5/055Cervical collars

Description

March 26, 1968 J. F. GAYLORD, JR 3,374,785

CERVICAL COLLAR Filed Oct. 11, 1965 JOHN F. GAYLoEb,J2.

BYWJ g/ QLM ATTORNEYS United States Patent 3,374,785 CERVICAL COLLAR John F. Gaylord, Jr., Matthews, N.C. assignor to Medical Specialties, Inc., Charlotte, N.C., a corporation of North Carolina Filed Oct. 11, 1965, Ser. No. 494,422 7 Claims. (Cl. 12875) This invention relates to orthopedic appliances and more specifically to a novel cervical collar.

The use of cervical collars in the treatment of various neck injuries and pathological disorders is well known in the medical art. The collar basically functions to immobilize the wearers head while supporting it to relieve strain upon the neck muscles. In performing its intended function, the collar must be sufficiently rigid to give the required support, but at the same time, it must be porous or breathable, or in some way allow a degree of air circulation to the wearers skin beneath the collar to prevent it from being prohibitively uncomfortable.

The prior art has taken two general approaches toward cervical collar constructions. The first construction is one which basically incorporates a rigid sheet of material such as plastic in the shape of a collar and padded in some suitable manner on each of its longitudinal edges. In order to prevent this type of collar from being prohibitively hot, a plurality of air holes are provided in the plastic sheet material. As such, this type of collar permits air circulation, but it is often found to be too rigid, and thus, uncomfortably and unnecessarily confining for the patient. Thus, in this type of collar, comfort is sacrificed for therapeutic effectiveness.

The other approach to prior art cervical collars attempts to eliminate the comfort problems encountered with the first type collar by using resilient foam material to perform the supporting function. In this type of collar, a piece of porous, resilient foam material in the general form of the collar is provided and is covered with a suitable porous fabric. As long as a foam material of not more than about two or three pounds per cubic foot density is used in this type of collar, the porosity is sufiicient to render the collar relatively comfortable from the standpoint of heat. However, resilient, porous foam materials of this low density are not sufficiently rigid or stiff normally to provide adequate support to the wearer. And, if the density is increased beyond this, the porosity decreases to an unacceptable level. Thus, in this type of collar, therapeutic effectiveness is sacrificed for comfort.-

In accordance with the present invention, I have provided a novel cervical collar which combines the therapeutic effectiveness of rigid plastic collars with the comfort of low density, resilient foam collars. This is accomplished through the use of a novel resilient foam material having a density of about six pounds per cubic foot, and thus sufficient rigid and stiff to provide adequate therapeutic support, while having a porosity comparable to that of common polyurethane foam material of about two pounds per cubic foot density.

Accordingly, it is the primary object of this invention to provide a cervical collar having sufficient stiffness and rigidity to be therapeutically effective, but still comfortable in that it is not over-confining, and having sufficient porosity so as not to be prohibitively uncomfortable from a heat standpoint.

It is another object of this invention to provide a novel polyurethane foam material adaptable for use in forming cervical collars which material ha a density of about six pounds per cubic foot while having an enhanced porosity comparable to that of common polyurethane foam material of about two pounds per cubic foot density.

Some of the objects of the invention having been stated,

R 3,374,785 Patented Mar. 26,1968

other objects will appear as the description proceeds when taken in connection with the accompanying drawings in which:

FIGURE 1 is a partially schematic view showing a cervical collar of the present invention in use about a wearers neck;

FIGURE 2 is an isometric view of the same collar in open form looking at the inside surface thereof;

FIGURE 3 is a view similar to FIGURE 2 showing the opposite side of the collar and having a portion of the porous covering broken away to illustrate the nature of the core material of the collar;

FIGURE 4 is a transverse sectional View taken substantially along line 44 in FIGURE 2;

FIGURE 5 is an isometric view of a core used in making the collar illustrated in the other figures; and

FIGURE 6 is an enlarged fragmentary sectional view taken substantially along line 66 of FIGURE 5 and schematically illustrating the enhanced porosity of the core material with arrows.

Referring now more specifically to the figures, the numeral 10 broadly indicates a cervical collar made in accordance with the invention and comprising a core broadly indicated at 11, a porous covering 12 and securing means 13 and 13a, shown in the form of mating Velcro fasteners, attached to respective ends of the collar for securing the same about a wearers neck. Of course, various other fastening means such as snaps, hooks and eyes, buttons, etc., could be used for this purpose.

The core 11 is shaped generally in the form of the complete collar 10 and is formed from a material having a density of about six pounds per cubic foot. This material comprises discrete particles 14 of polyurethane foam material bonded together with a suitable binder.

In forming this core material, I begin with common or virgin polyurethane foam material having a density ranging from about one to three pounds per cubic foot Preferably, I utilize both the polyester-type and polyethertype polyurethane foam materials. The foam material is then shredded or otherwise formed into the discrete particles 14, preferably into the foam of about oneeighth inch cubes. Thereafter, I prefer to combine the particles 14 in a ratio of about pol'yether-type polyurethane to 10% polyester-type polyurethane, whereupon they are then mixed with a suitable binder such as about 4% by weight of base form polyester-type polyurethane.

The mixture of particles 14 and binder is then heated to form a gelatinous, lumpy mass which is then forced into a suitable mold and cured, as by subjecting to steam, to form a material of approximately six pounds per cubic foot density.

The cured core material is then removed from the mold, and depending upon the shape of the mold, it is already in the shape of core 11, or if necessary, it can be cut or otherwise shaped into the desired core shape.

Although this so-formed core material has a density of about six pounds per cubic foot, it is unexpectedly vastly more porous than common six pounds per cubic foot density polyurethane foam material, and in fact, has a porosity comparable to that of a common polyurethane foam material having a density of about two pounds per cubic foot.

The core 11 is next covered with a porous covering 12, such as knitted cotton fabric, which is preferably stitched directly to the core 11 by stitches 15 which serve to prevent shifting of the covering relative to the core.

Finally, as shown, the mating Velcro fasteners 13, 13a or other suitable securing means, are sewn or otherwise secured to the ends of the covered core thereby completing the collar.

r 3 In the drawings and the specification there has been set forth a preferred embodiment of the -invention, and, although specific term are employed, they are used in a generic and descriptive sense only and not for the purposes of limitation, the scope of the invention being defined in the claims.

I claim: 1. A cervical collar comprising: (a) an elongate, resilient, porous core of discrete particles of polyurethane foam material bonded to gether, said core having 7 (l) a size generally corresponding to the overall shape of the collar; 7 V (2) a density of about six pounds per cubic foot,

and

(3) an enhanced porosity comparable to that of common polyurethane foam material of about two pounds per cubic foot density;

(b) a porous covering on said coreiand (c) means positioned on each end of said covered core for securement of such ends together when the collar is placed about a wearers neck.

2. A cervical collar according to claim 1 wherein said discrete particles consist of about 90% polyether-type polyurethane foam material and about polyestertype' polyurethane foam material.

3. A cervical collar according to claim 1 wherein said discrete particles are bonded together with about 4% by weight base form polyurethane.

4. A cervical collar according to claim 1 wherein 'said discrete particles consist of about 90% polyether-type polyurethane foam material and about 10% polyestertype polyurethane and are bonded together with about 4% by weight base form polyester-type polyurethane, and wherein said porous covering comprises a knitted cotton fabric.

5. A material adaptable to be used as the core in forming cervical collars comprising:

(a) discrete particles of polyurethane'foam material bonded together, said material having (1) a density of about six pounds per cubic foot,

and

(2) an enhanced porosity comparable to that of common polyurethane foam material of about two pounds per cubic foot density.

6. A material according to claim 5 wherein said discrete particles consist of about 'polyether-type polyurethane foam material and about 10%.polyester-type polyurethane foam material.

7. A material according to claim 6 wherein said discrete particles are bonded together with about 4%. by weight base form polyester-type polyurethane.

References Cited UNITED STATES PATENTS 3/1959 Hacklander 264-321 XR 6/1965 Barnett 12875 OTHER REFERENCES L. W. TRAPP, Primary Examiner.

Claims (1)

1. A CERVICAL COLLAR COMPRISING: (A) AN ELONGATE, RESILENT, POROUS CORE OF DISCRETE PAR TICLES OF POLYURETHANE FOAM MATEIAL BONDED TO GETHER, SAID CORE HAVING (1) A SIZE GENERALLY CORRESPONDING TO THE OVERALL SHAPE OF THE COLLAR; (2) A DENSITY OF ABOUT SIX POUNDS PER CUBIC FOOT, AND (3) AN ENHANCED POROSITY COMPARABLE TO THAT OF COMMON POLYURETHANE FOAM MATERIAL OF ABOUT TWO POUNDS PER CUBIC FOOT DENSITY; (B) A POROUS COVERING ON SAID CORE; AND (C) MEANS POSITIONED ON EACH END OF SAID COVERED CORE FOR SECUREMENT OF SUCH ENDS TOGETHER WHEN THE COLLAR IS PLACED ABOUT A WEARE''S NECK.
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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696810A (en) * 1969-10-24 1972-10-10 Medical Specialties Inc Cervical collar having means for providing a plurality of different angular positions
US3718137A (en) * 1971-01-13 1973-02-27 Medical Specialties Inc Clavicle brace
US3937218A (en) * 1974-07-29 1976-02-10 Medical Specialties, Inc. Decubitus pad
US3964474A (en) * 1975-05-27 1976-06-22 Fox J Dewitt Universal cervical collar
US4043325A (en) * 1976-09-13 1977-08-23 Ochs David J Cervical collars
US4043330A (en) * 1976-02-18 1977-08-23 Bansal Surinder K Arm board for intravenous infusions
US4205667A (en) * 1978-04-04 1980-06-03 Medical Specialties, Inc. Cervical collar
US4232663A (en) * 1978-12-12 1980-11-11 Newton John E Cervical support collar
US4396012A (en) * 1980-10-27 1983-08-02 John Cobiski Vertical traction harness
US4562833A (en) * 1983-12-19 1986-01-07 Pujals Jr Charles Device for cervical/occipital support
WO1987001028A1 (en) * 1985-08-23 1987-02-26 Gerrit Jan Benckhuijsen Minerva jacket
EP0280509A1 (en) * 1987-02-23 1988-08-31 JOHNSON & JOHNSON ORTHOPAEDICS INC. A cervical collar and cover
US4966136A (en) * 1988-09-02 1990-10-30 Bates Norman R Orthopedic support device
US4987891A (en) * 1988-12-30 1991-01-29 Medical Specialties, Inc. Emergency cervical collar
US5295949A (en) * 1992-09-18 1994-03-22 Charles Hathaway Modular neck apparatus
US5520619A (en) * 1993-05-20 1996-05-28 Ambu International A/S Adjustable cervical collar
USRE35290E (en) * 1989-11-24 1996-07-02 Druskoczi; Sue Surgical collar and liner therefor
US5588957A (en) * 1993-05-20 1996-12-31 Ambu International A/S Cervical collar
WO1998018356A1 (en) * 1996-10-25 1998-05-07 Lerjestad Joergen Device to avoid whiplash injuries
US5797863A (en) * 1995-11-30 1998-08-25 Ambu International A/S Collapsible cervical collar
US5857948A (en) * 1995-03-09 1999-01-12 Barnett; Larry W. Self-conformable head support
US5904662A (en) * 1995-04-10 1999-05-18 Myoga; Maki Cervical collar
US5993403A (en) * 1993-05-20 1999-11-30 Ambu International A/S Adjustable cervical collar
US6036664A (en) * 1994-02-22 2000-03-14 Ambu International A/S Automatic adjustable cervical collar
US6056711A (en) * 1997-06-26 2000-05-02 Beiersdorf, Inc. Adjustable cervical collar
USRE36745E (en) * 1994-09-29 2000-06-20 Ambu Inc. Extrication cervical collar with adjustable supports
US6090058A (en) * 1996-12-23 2000-07-18 Laerdal Medical Corporation Multiple-size cervical collar
US20020156409A1 (en) * 2001-03-19 2002-10-24 Lee Freddy T. Cervical immobilization device
US6726643B1 (en) 1994-02-22 2004-04-27 Ambu International A/S Automatic adjustable cervical collar
US6913584B2 (en) 1999-10-27 2005-07-05 Ambu Inc. Cervical immobilizing device
WO2007041509A2 (en) * 2005-10-03 2007-04-12 Baldy By Design, Llc. Therapeutic cushioning and devices for assisting respiration of and administering fluid to a patient
US8657768B1 (en) 2010-07-22 2014-02-25 Salvatore Calabrese Cervical collar having flexible chin support
US20140296758A1 (en) * 2013-03-26 2014-10-02 Flavio LIMONTINI Conformable cervical collar
US20160058600A1 (en) * 2014-08-31 2016-03-03 John William Basill Damage-reducing cervical collar
US9687380B1 (en) 2014-05-12 2017-06-27 David L. Falk Cervical collar brace kit, collar blanks, methods of forming a model of a patient, and methods of forming collar blanks

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878153A (en) * 1955-02-03 1959-03-17 Agricola Reg Trust Method of making mattresses, cushions, upholstery, heat and sound insulating coverings and the like
US3189026A (en) * 1962-03-19 1965-06-15 Harry E Barnett Combination cervical collar and traction apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878153A (en) * 1955-02-03 1959-03-17 Agricola Reg Trust Method of making mattresses, cushions, upholstery, heat and sound insulating coverings and the like
US3189026A (en) * 1962-03-19 1965-06-15 Harry E Barnett Combination cervical collar and traction apparatus

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696810A (en) * 1969-10-24 1972-10-10 Medical Specialties Inc Cervical collar having means for providing a plurality of different angular positions
US3718137A (en) * 1971-01-13 1973-02-27 Medical Specialties Inc Clavicle brace
US3937218A (en) * 1974-07-29 1976-02-10 Medical Specialties, Inc. Decubitus pad
US3964474A (en) * 1975-05-27 1976-06-22 Fox J Dewitt Universal cervical collar
US4043330A (en) * 1976-02-18 1977-08-23 Bansal Surinder K Arm board for intravenous infusions
US4043325A (en) * 1976-09-13 1977-08-23 Ochs David J Cervical collars
US4205667A (en) * 1978-04-04 1980-06-03 Medical Specialties, Inc. Cervical collar
US4232663A (en) * 1978-12-12 1980-11-11 Newton John E Cervical support collar
US4396012A (en) * 1980-10-27 1983-08-02 John Cobiski Vertical traction harness
US4562833A (en) * 1983-12-19 1986-01-07 Pujals Jr Charles Device for cervical/occipital support
WO1987001028A1 (en) * 1985-08-23 1987-02-26 Gerrit Jan Benckhuijsen Minerva jacket
EP0280509A1 (en) * 1987-02-23 1988-08-31 JOHNSON & JOHNSON ORTHOPAEDICS INC. A cervical collar and cover
US4966136A (en) * 1988-09-02 1990-10-30 Bates Norman R Orthopedic support device
US4987891A (en) * 1988-12-30 1991-01-29 Medical Specialties, Inc. Emergency cervical collar
USRE35290E (en) * 1989-11-24 1996-07-02 Druskoczi; Sue Surgical collar and liner therefor
US5295949A (en) * 1992-09-18 1994-03-22 Charles Hathaway Modular neck apparatus
US5520619A (en) * 1993-05-20 1996-05-28 Ambu International A/S Adjustable cervical collar
US5588957A (en) * 1993-05-20 1996-12-31 Ambu International A/S Cervical collar
US5728054A (en) * 1993-05-20 1998-03-17 Ambu International A/S Adjustable cervical collar
US5993403A (en) * 1993-05-20 1999-11-30 Ambu International A/S Adjustable cervical collar
US6245033B1 (en) 1993-05-20 2001-06-12 Ambu International A/S Adjustable cervical collar
US6726643B1 (en) 1994-02-22 2004-04-27 Ambu International A/S Automatic adjustable cervical collar
US6036664A (en) * 1994-02-22 2000-03-14 Ambu International A/S Automatic adjustable cervical collar
USRE36745E (en) * 1994-09-29 2000-06-20 Ambu Inc. Extrication cervical collar with adjustable supports
US5857948A (en) * 1995-03-09 1999-01-12 Barnett; Larry W. Self-conformable head support
US5904662A (en) * 1995-04-10 1999-05-18 Myoga; Maki Cervical collar
US5797863A (en) * 1995-11-30 1998-08-25 Ambu International A/S Collapsible cervical collar
WO1998018356A1 (en) * 1996-10-25 1998-05-07 Lerjestad Joergen Device to avoid whiplash injuries
US6090058A (en) * 1996-12-23 2000-07-18 Laerdal Medical Corporation Multiple-size cervical collar
US6056711A (en) * 1997-06-26 2000-05-02 Beiersdorf, Inc. Adjustable cervical collar
US6913584B2 (en) 1999-10-27 2005-07-05 Ambu Inc. Cervical immobilizing device
US20020156409A1 (en) * 2001-03-19 2002-10-24 Lee Freddy T. Cervical immobilization device
US7297127B2 (en) 2001-03-19 2007-11-20 Ambu Inc. Cervical immobilization device
WO2007041509A3 (en) * 2005-10-03 2007-09-07 Baldy By Design Llc Therapeutic cushioning and devices for assisting respiration of and administering fluid to a patient
WO2007041509A2 (en) * 2005-10-03 2007-04-12 Baldy By Design, Llc. Therapeutic cushioning and devices for assisting respiration of and administering fluid to a patient
US20100036301A1 (en) * 2005-10-03 2010-02-11 Mary Baldauf Therapeutic Cushioning and Devices for Assisting Respiration of and administering fluid to a patient
US8657768B1 (en) 2010-07-22 2014-02-25 Salvatore Calabrese Cervical collar having flexible chin support
US20140296758A1 (en) * 2013-03-26 2014-10-02 Flavio LIMONTINI Conformable cervical collar
US9668905B2 (en) * 2013-03-26 2017-06-06 Flavio LIMONTINI Conformable cervical collar
US9687380B1 (en) 2014-05-12 2017-06-27 David L. Falk Cervical collar brace kit, collar blanks, methods of forming a model of a patient, and methods of forming collar blanks
US20160058600A1 (en) * 2014-08-31 2016-03-03 John William Basill Damage-reducing cervical collar

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