CA2300266A1 - Orthopedic helmet cap - Google Patents
Orthopedic helmet cap Download PDFInfo
- Publication number
- CA2300266A1 CA2300266A1 CA002300266A CA2300266A CA2300266A1 CA 2300266 A1 CA2300266 A1 CA 2300266A1 CA 002300266 A CA002300266 A CA 002300266A CA 2300266 A CA2300266 A CA 2300266A CA 2300266 A1 CA2300266 A1 CA 2300266A1
- Authority
- CA
- Canada
- Prior art keywords
- therapeutic
- cap
- helmet cap
- ventilating
- fitting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000000399 orthopedic effect Effects 0.000 title description 7
- 230000001225 therapeutic effect Effects 0.000 claims abstract description 93
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 230000002745 absorbent Effects 0.000 claims abstract description 13
- 239000002250 absorbent Substances 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims description 22
- 229920003023 plastic Polymers 0.000 claims description 22
- 238000000465 moulding Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 239000003365 glass fiber Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 12
- -1 Polypropylene Polymers 0.000 claims description 11
- 239000004952 Polyamide Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229920002647 polyamide Polymers 0.000 claims description 9
- 239000004417 polycarbonate Substances 0.000 claims description 9
- 229920000515 polycarbonate Polymers 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000006261 foam material Substances 0.000 claims description 4
- 210000003625 skull Anatomy 0.000 description 12
- 210000003128 head Anatomy 0.000 description 11
- 239000013013 elastic material Substances 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 230000001575 pathological effect Effects 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 206010053682 Brachycephaly Diseases 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 208000009283 Craniosynostoses Diseases 0.000 description 1
- 208000009782 Plagiocephaly Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 230000006931 brain damage Effects 0.000 description 1
- 231100000874 brain damage Toxicity 0.000 description 1
- 208000029028 brain injury Diseases 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 210000001595 mastoid Anatomy 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 210000003455 parietal bone Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 210000003582 temporal bone Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
- A61F5/058—Splints
- A61F5/05883—Splints for the neck or head
- A61F5/05891—Splints for the neck or head for the head, e.g. jaws, nose
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Pulmonology (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Helmets And Other Head Coverings (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A therapeutic helmet cap (20) for the head of a small child comprising an outer shell (32), and an inner lining (34). The outer shell includes at least two, preferably three integrally affixed portions which differ in rigidity, and flexibility. The lining includes an absorbent layer (34) covered by a moisture permeable lining (36) for contacting the head. Preferred embodiments may include an outer shell which includes a cap-like ventilating portion (22), a substantially annular rigid therapeutic portion (26) affixed to the ventilating portion, and an elastic form fitting portion (29) affixed to the therapeutic portion. The invention also includes a method of manufacturing the therapeutic helmet.
Description
ORTHOPEDIC HELMET CAP
TECHNICAL FIELD
The present invention relates to orthopedic caps, in general, and, in particular, to an orthopedic helmet cap for correcting the shape of skull bones in small children.
BACKGROUND ART
The pathological phenomenon of deformation of the skull bones in small children is one of the most widespread phenomena around the world.
International statistics show that some 45-60% of infants are born with a pathologic, irregular or asymmetric shape of the skull bones, which is seen either immediately after birth or in the course of the infant's growth.
The asymmetric or irregular form of the skull bones in babies generally requires orthopedic intrusion to correct and remove the irregularities in the baby's face and skull to improve the baby's appearance and prevent brain damage. Despite intensive research and practical testing on the part of orthopedists aimed at correcting skull bone defects, little success has been achieved.
A number of patents propose helmets for correcting irregular shape and encouraging correct growth of skull bones in infants. These provide devices to be worn at all times by the infant until his skull bones reach the desired shape, which can take as long as to age two.
Such patents include US 5,094,229 to Pomatto, et al., which discloses a cranial remodeling orthosis including a band having at least one discontinuity therein permitting relative movement of the anterior and posterior portions of the band. An elastic member extending across the discontinuity biases the anterior and posterior portions toward each other. This orthosis is limited in that it can only correct defects in the region of the band, not about the top of the skull. Furthermore, it is complicated to manufacture.
Another cranial remodeling orthosis is shown in US 5,308,312, also to Pomatto et al. This device is for treating brachycephaly, and is shaped to extend across the top of the head with depending regions closely confining the temporal bone regions and the mastoid process regions of the cranium. The orthosis is self suspending and preferably includes an elastic band, such as a carbon fiber band, for imparting ear-to-ear rigidity of the device. The orthosis is formed of an outer layer of plastic material about 4.76 mm thick, with a foam liner about 10 mm thick. This orthosis suffers from the disadvantage that it is often very hot inside, resulting in perspiration uncomfortable for the wearer.
There is shown in US 4,776,324 to Clarren a therapeutic and protective infant helmet for treating deformational cranial asymmetry. A graded series of ofd the-shelf helmets is provided, depending on the infant's age and the degree of plagiocephaly changes. The helmet is formed of a plastic shell with an inner filler fitted to the heads of representative infants of different ages. The helmet is maintained in place by a strap under the chin, which can interfere with eating and other activities. Despite the fact that the helmet includes air holes for ventilation, in reality the close fit can cause excessive perspiration without sufficient evaporative cooling.
A major disadvantage of these known orthoses is that their outer shell is substantially rigid throughout, so as to provide the therapeutic action. This makes sleeping when wearing the device very difficult and uncomfortable.
Accordingly, there is a long felt need for a simple, inexpensive therapeutic helmet for non-invasive treatment of irregularities in skull bone growth which is both effective and comfortable to wear and to sleep in, and which reduces discomfort from perspiration.
TECHNICAL FIELD
The present invention relates to orthopedic caps, in general, and, in particular, to an orthopedic helmet cap for correcting the shape of skull bones in small children.
BACKGROUND ART
The pathological phenomenon of deformation of the skull bones in small children is one of the most widespread phenomena around the world.
International statistics show that some 45-60% of infants are born with a pathologic, irregular or asymmetric shape of the skull bones, which is seen either immediately after birth or in the course of the infant's growth.
The asymmetric or irregular form of the skull bones in babies generally requires orthopedic intrusion to correct and remove the irregularities in the baby's face and skull to improve the baby's appearance and prevent brain damage. Despite intensive research and practical testing on the part of orthopedists aimed at correcting skull bone defects, little success has been achieved.
A number of patents propose helmets for correcting irregular shape and encouraging correct growth of skull bones in infants. These provide devices to be worn at all times by the infant until his skull bones reach the desired shape, which can take as long as to age two.
Such patents include US 5,094,229 to Pomatto, et al., which discloses a cranial remodeling orthosis including a band having at least one discontinuity therein permitting relative movement of the anterior and posterior portions of the band. An elastic member extending across the discontinuity biases the anterior and posterior portions toward each other. This orthosis is limited in that it can only correct defects in the region of the band, not about the top of the skull. Furthermore, it is complicated to manufacture.
Another cranial remodeling orthosis is shown in US 5,308,312, also to Pomatto et al. This device is for treating brachycephaly, and is shaped to extend across the top of the head with depending regions closely confining the temporal bone regions and the mastoid process regions of the cranium. The orthosis is self suspending and preferably includes an elastic band, such as a carbon fiber band, for imparting ear-to-ear rigidity of the device. The orthosis is formed of an outer layer of plastic material about 4.76 mm thick, with a foam liner about 10 mm thick. This orthosis suffers from the disadvantage that it is often very hot inside, resulting in perspiration uncomfortable for the wearer.
There is shown in US 4,776,324 to Clarren a therapeutic and protective infant helmet for treating deformational cranial asymmetry. A graded series of ofd the-shelf helmets is provided, depending on the infant's age and the degree of plagiocephaly changes. The helmet is formed of a plastic shell with an inner filler fitted to the heads of representative infants of different ages. The helmet is maintained in place by a strap under the chin, which can interfere with eating and other activities. Despite the fact that the helmet includes air holes for ventilation, in reality the close fit can cause excessive perspiration without sufficient evaporative cooling.
A major disadvantage of these known orthoses is that their outer shell is substantially rigid throughout, so as to provide the therapeutic action. This makes sleeping when wearing the device very difficult and uncomfortable.
Accordingly, there is a long felt need for a simple, inexpensive therapeutic helmet for non-invasive treatment of irregularities in skull bone growth which is both effective and comfortable to wear and to sleep in, and which reduces discomfort from perspiration.
DISCLOSURE OF THE INVENTION
There is provided in accordance with the present invention a therapeutic helmet cap for the head of a small child comprising an outer shell and an inner lining, characterized in that the outer shell includes at least two and preferably three integrally affixed portions which differ in rigidity and flexibility, and the lining includes an absorbent layer covered by a moisture-permeable lining for contacting the head.
According to a preferred embodiment of the invention, the outer shell includes a cap-like ventilating portion, a substantially annular rigid therapeutic portion affixed to the ventilating portion, and an elastic form-fitting portion affixed to the therapeutic portion.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be further understood from the following detailed description taken in conjunction with the drawings in which:
Fig. la is a perspective view of a therapeutic helmet cap constructed and operative in accordance with one embodiment of the invention;
Fig. lb is a perspective view of the helmet cap of Fig. I a as worn by an infant;
Fig. 2a is a schematic side sectional view of a helmet cap constructed and operative in accordance with another embodiment of the invention;
Fig. 2b is a schematic side sectional view of a helmet cap constructed and operative in accordance with yet another embodiment of the invention;
Fig. 3 is a schematic sectional view taken along tine A-A in Fig. 2a or 2b;
Fig. 4 is a schematic sectional view taken along line B-B in Fig. 2a or 2b;
Fig. 5 is a detail sectional view of a portion of the helmet cap of Fig. 2a or 2b, taken along line C-C;
Figs. 6, 7 and 8 are enlarged views of portions of Fig. 5; and Fig. 9 is a schematic illustration of a portion of the helmet cap according to an embodiment particularly suited for infants.
BEST MODES FOR CARRYING OUT THE INVENTION
The present invention relates to a helmet cap far adjustment of abnormal skull bones in an infant or small child, generally from a few weeks to two years.
The helmet cap of the invention includes a cap-like ventilating portion, a substantially annular rigid therapeutic portion, and a flexible portion for fitting the cap to the head and permitting comfortable wear even during sleep. This is accomplished by the structure of the helmet cap in which each portion is integrally affixed to and smoothly merges into the next portion. It is a particular feature of the invention that an absorptive lining, with a covering of material permeable to moisture, is provided to prevent the build-up of perspiration on the wearer's head.
Referring now to Figs. 1 a and 1 b, there is shown a therapeutic helmet cap 10 constructed and operative in accordance with one embodiment of the invention, off and on the head of an infant, respectively. Helmet cap 10 includes a cap-like ventilating portion 12 which is integrally affixed to a therapeutic portion 14 which, in turn, is integrally affixed to a form fitting portion 16. Since ventilating portion 12 generally has no therapeutic function, and serves essentially to retain the helmet cap in the proper position on the head, it can be omitted from the helmet cap, if desired.
All portions of the helmet cap 10, are provided with a number of throughgaing bores 18, which reduce perspiration inside the helmet cap and permit evaporative cooling of any remaining perspiration. Alternatively, ventilating portion 12 may be formed as a plastic net or web 19, as shown in detail in Fig. 9. At least a portion of web 19 is preferred over the front parietal bone when the helmet cap is to be worn by a young infant. Therapeutic portion 14 defines a substantially annular band around the head and serves to provide pressure on the developing skull bones to urge them to WO 99!08628 PCT/IL98/00366 grow to the correct shape. Form fitting portion 16 fits around the infant's forehead, ears and nape, and is elastic so as to permit it to stretch while the infant puts the helmet cap on, and then retract to hug the head to prevent rotation or movement of the helmet cap.
Figs. 2a and 2b, 3, and 4 are respective schematic side, top, and front sectional views of a helmet cap 20 according to preferred embodiments of the invention.
Helmet cap 20 having a plurality of bores 24 includes a cap-like ventilating portion 22. A
substantially annular therapeutic portion 26 is illustrated. In a preferred embodiment of the invention illustrated in Fig. 2b, a special ring 30 may be placed around the therapeutic portion 26. Ring 30 is arranged to pivot about a pivot point 28 and serves to exert on the therapeutic portion 26 additional differential pressure relative to the position of ring 30 on the helmet cap 20. A semi ring in place of ring 30 may serve the same purpose in a preferred embodiment of the invention.
A form fitting portion 29 is affixed to therapeutic portion 26. Referring now to Fig. 5, there is shown a detail sectional view of the helmet cap of Fig. 2a taken along line C-C. As can be seen, according to a preferred embodiment of the invention, helmet cap 20 includes an outer shell 32, of at least two different kinds of plastic as a single, unitary body.
Lining outer shell 32 is a layer 34 of elastic, flexible sponge or foam material which has a high capacity to absorb moisture (humidity). Sponge layer 34 has high relaxation characteristics. Preferably, sponge layer 34 is removable for cleaning or replacement, in case of need. In this case, it can be detachably attached to the outer shell 32 by velcro strips or other releasable adhesive means.
Lining sponge layer 34 is a layer 36 of material which is moisture-permeable but not absorbtive. In this fashion, perspiration passes through moisture-permeable layer 36 and is absorbed in sponge layer 34, thereby maintaining the head substantially dry. Layer 36 can be either attached or detachably attached to lining sponge layer 34, WO 99/08628 _ 6 _ PCT/IL98/00366 by any of several attachable means such as thread or adhesive means or velcro strips or other releasable attaching means.
Figs. 6, 7 and 8 are enlarged views of portions of Fig. 5. As can be seen, the thickness of the helmet cap 20 varies, the helmet cap being relatively thin at the ventilating portion 22, expanding to a maximum thickness in therapeutic portion 26, and narrowing again, both outer shell 32 and sponge layer 34, in form fitting portion 29. In addition, due to the tasks performed by each of these portions, the characteristics of the preferred plastic components are different. The plastic in ventilating portion 22, shown in detail in Fig. 6, may be any suitable plastic which retains its shape when perforated. One plastic suitable for this portion is Polypropylene. Therapeutic portion 26, shown in detail in Fig. 7, requires a substantially rigid plastic material, such as Polycarbonate or Polyamide, either with or without glass fibers, which can be afF~xed to the plastic of ventilating portion 22, during or after the molding process. Form fitting portion 26, shown in detail in Fig. 8, requires a flexible, elastic material, which is soft enough to act as a pillow, and not to interfere with sleeping, such as Silicon, E.V.A., or Polyurethane, and which can be aft'ixed to the plastic of therapeutic portion 24, during or after the molding process.
The sponge layer 34 may be formed of any light weight, elastic foam or sponge material. The moisture-permeable liner 36 may be any suitable fabric, such as cotton.
It is a particular feature of the present invention that the helmet cap is very inexpensive to manufacture. Thus, the helmet cap can be disposable, being replaced with a replacement helmet of a larger size. This is due to the fact that casting of plastic, and preparation of sponge and fabric lining are all inexpensive, and no complicated accessories are required.
A method of manufacturing a preferred embodiment of the orthopedic helmet cap of the present invention, comprises the following steps:
manufacturing the outer shell 32 of the helmet cap 20 by:
molding the substantially annular therapeutic portion 26 of substantially rigid plastic material, such as Polycarbonate or Polyamide, either with or without glass fibers, allowing for throughgoing bores to be formed;
forming in the borders of therapeutic portion 26, cavities of various shapes such as inverted cones or mushroom-like, during the molding process;
cooling off theraputic portion 26;
molding the form fitting portion 29 of flexible, elastic material, which is soft enough to act as a pillow, and not to interfere with sleeping, such as Silicon, E.V.A., or Polyurethane, next to the therapeutic portion 26 allowing the liquefied plastic material of the borders of the form fitting portion 29 adjacent to the therapeutic portion 26 to penetrate the cavities in the borders thereof and further allowing for throughgoing bores to be formed in form fitting portion 29;
cooling off the form fitting portion 29, thus being integrally affixed to and smoothly merged into the therapeutic portion 26;
manufacturing the lining of outer shell 32 by:
preparing a lining sponge layer 34 of elastic, flexible sponge or foam material;
attaching velcro strips or other releasable adhesive means to one side of layer 34;
attaching a layer 36 of material which is moisture-permeable but not absorbtive, such as cotton, to the other side of layer 34;
attaching lining layer 34 to the inner side of outer shell 32.
Another method of manufacturing a preferred embodiment of the orthopedic helmet cap of the present invention, comprises the following steps:
manufacturing the outer shell 32 of the helmet cap 20 by:
molding the cap-like ventilating portion 22 of suitable plastic material, such as Polypropylene, allowing for throughgoing bores to be formed;
_g_ forming in the borders of ventilating portion 22, cavities of various shapes such as inverted cones or mushroom-like, during the molding process;
cooling oil ventilating portion 22;
molding the substantially annular therapeutic portion 26 of substantially rigid plastic material, such as Polycarbonate or Polyamide, either with or without glass fibers, next to the ventilating portion 22 allowing the liquefied plastic material of the borders of the therapeutic portion 26 adjacent to the ventilating portion 22 to penetrate the cavities in the borders thereof, further allowing for throughgoing bores to be formed in therapeutic portion 26 and also forming in the opposite borders thereof, cavities of various shapes such as inverted cones or mushroom-like, all during the molding process;
cooling off theraputic portion 26, thus being integrally affixed to and smoothly merged into the ventilating portion 22;
molding the form fitting portion 29 of flexible, elastic material, which is soft enough to act as a pillow, and not to interfere with sleeping, such as Silicon, E.V.A., or Polyurethane, next to the therapeutic portion 26, allowing the liquefied plastic material of the borders of the form fitting portion 29 adjacent to the therapeutic portion 26 to penetrate the cavities in the borders thereof and further allowing for throughgoing bores to be formed in form fitting portion 29;
cooling off the form fitting portion 29, thus being integrally affixed to and smoothly merged into the therapeutic portion 26;
manufacturing the lining outer shell 32 by:
preparing a lining sponge layer 34 of elastic, flexible sponge or foam material;
attaching velcro strips or other releasable adhesive means to one side of layer 34;
attaching a layer 36 of material which is moisture-permeable but not absorbtive, such as cotton, to the other side of layer 34;
attaching lining layer 34 to the inner side of outer shell 32.
It will be appreciated by those skilled in the art, that the various portions of the outer shell 32 can be molded in a single process and that said cavities can be formed in either of the borders of adjacent portions of the outer shell 32.
Alternatively, any other manner of fastening the portions to one another can be utilized.
It will be also appreciated by those skilled in the art, that each of the various portions of the outer shell 32 can be molded separately and fastened together by adhesive means.
It will be further appreciated by those skilled in the art that the invention is not limited to what has been shown and described hereinabove by way of example.
Rather, the scope of the invention is limited solely by the claims which follow.
There is provided in accordance with the present invention a therapeutic helmet cap for the head of a small child comprising an outer shell and an inner lining, characterized in that the outer shell includes at least two and preferably three integrally affixed portions which differ in rigidity and flexibility, and the lining includes an absorbent layer covered by a moisture-permeable lining for contacting the head.
According to a preferred embodiment of the invention, the outer shell includes a cap-like ventilating portion, a substantially annular rigid therapeutic portion affixed to the ventilating portion, and an elastic form-fitting portion affixed to the therapeutic portion.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be further understood from the following detailed description taken in conjunction with the drawings in which:
Fig. la is a perspective view of a therapeutic helmet cap constructed and operative in accordance with one embodiment of the invention;
Fig. lb is a perspective view of the helmet cap of Fig. I a as worn by an infant;
Fig. 2a is a schematic side sectional view of a helmet cap constructed and operative in accordance with another embodiment of the invention;
Fig. 2b is a schematic side sectional view of a helmet cap constructed and operative in accordance with yet another embodiment of the invention;
Fig. 3 is a schematic sectional view taken along tine A-A in Fig. 2a or 2b;
Fig. 4 is a schematic sectional view taken along line B-B in Fig. 2a or 2b;
Fig. 5 is a detail sectional view of a portion of the helmet cap of Fig. 2a or 2b, taken along line C-C;
Figs. 6, 7 and 8 are enlarged views of portions of Fig. 5; and Fig. 9 is a schematic illustration of a portion of the helmet cap according to an embodiment particularly suited for infants.
BEST MODES FOR CARRYING OUT THE INVENTION
The present invention relates to a helmet cap far adjustment of abnormal skull bones in an infant or small child, generally from a few weeks to two years.
The helmet cap of the invention includes a cap-like ventilating portion, a substantially annular rigid therapeutic portion, and a flexible portion for fitting the cap to the head and permitting comfortable wear even during sleep. This is accomplished by the structure of the helmet cap in which each portion is integrally affixed to and smoothly merges into the next portion. It is a particular feature of the invention that an absorptive lining, with a covering of material permeable to moisture, is provided to prevent the build-up of perspiration on the wearer's head.
Referring now to Figs. 1 a and 1 b, there is shown a therapeutic helmet cap 10 constructed and operative in accordance with one embodiment of the invention, off and on the head of an infant, respectively. Helmet cap 10 includes a cap-like ventilating portion 12 which is integrally affixed to a therapeutic portion 14 which, in turn, is integrally affixed to a form fitting portion 16. Since ventilating portion 12 generally has no therapeutic function, and serves essentially to retain the helmet cap in the proper position on the head, it can be omitted from the helmet cap, if desired.
All portions of the helmet cap 10, are provided with a number of throughgaing bores 18, which reduce perspiration inside the helmet cap and permit evaporative cooling of any remaining perspiration. Alternatively, ventilating portion 12 may be formed as a plastic net or web 19, as shown in detail in Fig. 9. At least a portion of web 19 is preferred over the front parietal bone when the helmet cap is to be worn by a young infant. Therapeutic portion 14 defines a substantially annular band around the head and serves to provide pressure on the developing skull bones to urge them to WO 99!08628 PCT/IL98/00366 grow to the correct shape. Form fitting portion 16 fits around the infant's forehead, ears and nape, and is elastic so as to permit it to stretch while the infant puts the helmet cap on, and then retract to hug the head to prevent rotation or movement of the helmet cap.
Figs. 2a and 2b, 3, and 4 are respective schematic side, top, and front sectional views of a helmet cap 20 according to preferred embodiments of the invention.
Helmet cap 20 having a plurality of bores 24 includes a cap-like ventilating portion 22. A
substantially annular therapeutic portion 26 is illustrated. In a preferred embodiment of the invention illustrated in Fig. 2b, a special ring 30 may be placed around the therapeutic portion 26. Ring 30 is arranged to pivot about a pivot point 28 and serves to exert on the therapeutic portion 26 additional differential pressure relative to the position of ring 30 on the helmet cap 20. A semi ring in place of ring 30 may serve the same purpose in a preferred embodiment of the invention.
A form fitting portion 29 is affixed to therapeutic portion 26. Referring now to Fig. 5, there is shown a detail sectional view of the helmet cap of Fig. 2a taken along line C-C. As can be seen, according to a preferred embodiment of the invention, helmet cap 20 includes an outer shell 32, of at least two different kinds of plastic as a single, unitary body.
Lining outer shell 32 is a layer 34 of elastic, flexible sponge or foam material which has a high capacity to absorb moisture (humidity). Sponge layer 34 has high relaxation characteristics. Preferably, sponge layer 34 is removable for cleaning or replacement, in case of need. In this case, it can be detachably attached to the outer shell 32 by velcro strips or other releasable adhesive means.
Lining sponge layer 34 is a layer 36 of material which is moisture-permeable but not absorbtive. In this fashion, perspiration passes through moisture-permeable layer 36 and is absorbed in sponge layer 34, thereby maintaining the head substantially dry. Layer 36 can be either attached or detachably attached to lining sponge layer 34, WO 99/08628 _ 6 _ PCT/IL98/00366 by any of several attachable means such as thread or adhesive means or velcro strips or other releasable attaching means.
Figs. 6, 7 and 8 are enlarged views of portions of Fig. 5. As can be seen, the thickness of the helmet cap 20 varies, the helmet cap being relatively thin at the ventilating portion 22, expanding to a maximum thickness in therapeutic portion 26, and narrowing again, both outer shell 32 and sponge layer 34, in form fitting portion 29. In addition, due to the tasks performed by each of these portions, the characteristics of the preferred plastic components are different. The plastic in ventilating portion 22, shown in detail in Fig. 6, may be any suitable plastic which retains its shape when perforated. One plastic suitable for this portion is Polypropylene. Therapeutic portion 26, shown in detail in Fig. 7, requires a substantially rigid plastic material, such as Polycarbonate or Polyamide, either with or without glass fibers, which can be afF~xed to the plastic of ventilating portion 22, during or after the molding process. Form fitting portion 26, shown in detail in Fig. 8, requires a flexible, elastic material, which is soft enough to act as a pillow, and not to interfere with sleeping, such as Silicon, E.V.A., or Polyurethane, and which can be aft'ixed to the plastic of therapeutic portion 24, during or after the molding process.
The sponge layer 34 may be formed of any light weight, elastic foam or sponge material. The moisture-permeable liner 36 may be any suitable fabric, such as cotton.
It is a particular feature of the present invention that the helmet cap is very inexpensive to manufacture. Thus, the helmet cap can be disposable, being replaced with a replacement helmet of a larger size. This is due to the fact that casting of plastic, and preparation of sponge and fabric lining are all inexpensive, and no complicated accessories are required.
A method of manufacturing a preferred embodiment of the orthopedic helmet cap of the present invention, comprises the following steps:
manufacturing the outer shell 32 of the helmet cap 20 by:
molding the substantially annular therapeutic portion 26 of substantially rigid plastic material, such as Polycarbonate or Polyamide, either with or without glass fibers, allowing for throughgoing bores to be formed;
forming in the borders of therapeutic portion 26, cavities of various shapes such as inverted cones or mushroom-like, during the molding process;
cooling off theraputic portion 26;
molding the form fitting portion 29 of flexible, elastic material, which is soft enough to act as a pillow, and not to interfere with sleeping, such as Silicon, E.V.A., or Polyurethane, next to the therapeutic portion 26 allowing the liquefied plastic material of the borders of the form fitting portion 29 adjacent to the therapeutic portion 26 to penetrate the cavities in the borders thereof and further allowing for throughgoing bores to be formed in form fitting portion 29;
cooling off the form fitting portion 29, thus being integrally affixed to and smoothly merged into the therapeutic portion 26;
manufacturing the lining of outer shell 32 by:
preparing a lining sponge layer 34 of elastic, flexible sponge or foam material;
attaching velcro strips or other releasable adhesive means to one side of layer 34;
attaching a layer 36 of material which is moisture-permeable but not absorbtive, such as cotton, to the other side of layer 34;
attaching lining layer 34 to the inner side of outer shell 32.
Another method of manufacturing a preferred embodiment of the orthopedic helmet cap of the present invention, comprises the following steps:
manufacturing the outer shell 32 of the helmet cap 20 by:
molding the cap-like ventilating portion 22 of suitable plastic material, such as Polypropylene, allowing for throughgoing bores to be formed;
_g_ forming in the borders of ventilating portion 22, cavities of various shapes such as inverted cones or mushroom-like, during the molding process;
cooling oil ventilating portion 22;
molding the substantially annular therapeutic portion 26 of substantially rigid plastic material, such as Polycarbonate or Polyamide, either with or without glass fibers, next to the ventilating portion 22 allowing the liquefied plastic material of the borders of the therapeutic portion 26 adjacent to the ventilating portion 22 to penetrate the cavities in the borders thereof, further allowing for throughgoing bores to be formed in therapeutic portion 26 and also forming in the opposite borders thereof, cavities of various shapes such as inverted cones or mushroom-like, all during the molding process;
cooling off theraputic portion 26, thus being integrally affixed to and smoothly merged into the ventilating portion 22;
molding the form fitting portion 29 of flexible, elastic material, which is soft enough to act as a pillow, and not to interfere with sleeping, such as Silicon, E.V.A., or Polyurethane, next to the therapeutic portion 26, allowing the liquefied plastic material of the borders of the form fitting portion 29 adjacent to the therapeutic portion 26 to penetrate the cavities in the borders thereof and further allowing for throughgoing bores to be formed in form fitting portion 29;
cooling off the form fitting portion 29, thus being integrally affixed to and smoothly merged into the therapeutic portion 26;
manufacturing the lining outer shell 32 by:
preparing a lining sponge layer 34 of elastic, flexible sponge or foam material;
attaching velcro strips or other releasable adhesive means to one side of layer 34;
attaching a layer 36 of material which is moisture-permeable but not absorbtive, such as cotton, to the other side of layer 34;
attaching lining layer 34 to the inner side of outer shell 32.
It will be appreciated by those skilled in the art, that the various portions of the outer shell 32 can be molded in a single process and that said cavities can be formed in either of the borders of adjacent portions of the outer shell 32.
Alternatively, any other manner of fastening the portions to one another can be utilized.
It will be also appreciated by those skilled in the art, that each of the various portions of the outer shell 32 can be molded separately and fastened together by adhesive means.
It will be further appreciated by those skilled in the art that the invention is not limited to what has been shown and described hereinabove by way of example.
Rather, the scope of the invention is limited solely by the claims which follow.
Claims (25)
1. A therapeutic helmet cap for the head of a small child comprising an outer shell and an inner lining, characterized in that the outer shell includes at least two integrally affixed portions which differ in rigidity and flexibility, and the lining includes an absorbent layer covered by a moisture-permeable lining for contacting the head.
2. The therapeutic helmet cap of claim 1, wherein said outer shell includes:
a substantially annular rigid therapeutic portion; and an elastic form-fitting portion affixed to said therapeutic portion.
a substantially annular rigid therapeutic portion; and an elastic form-fitting portion affixed to said therapeutic portion.
3. The therapeutic helmet cap of claim 2, wherein said outer shell further includes:
a cap-like ventilating portion affixed to said therapeutic portion.
a cap-like ventilating portion affixed to said therapeutic portion.
4. The therapeutic helmet cap of claims 1 and 2, wherein said therapeutic portion is formed of Polycarbonate with or without glass fibers, and said form-fitting portion is formed of Silicon.
5. The therapeutic helmet cap of claims 1 and 2, wherein said therapeutic portion is formed of Polycarbonate with or without glass fibers, and said form-fitting portion is formed of E.V.A.
6. The therapeutic helmet cap of claims 1 and 2, wherein said therapeutic portion is formed of Polycarbonate with or without glass fibers, and said form-fitting portion is formed of Polyuretane.
7. The therapeutic helmet cap of claims 1 and 2, wherein said therapeutic portion is formed of Polyamide with or without glass fibers, and said form-fitting portion is formed of Silicon.
8. The therapeutic helmet cap of claims 1 and 2, wherein said therapeutic portion is formed of Polyamide with or without glass fibers, and said form-fitting portion is formed of E.V.A.
9. The therapeutic helmet cap of claims 1 and 2, wherein said therapeutic portion is formed of Polyamide with or without glass fibers, and said form-fitting portion is formed of Polyuritane.
10. The therapeutic helmet cap of claim 3, wherein said cap-like ventilating portion is formed of Polypropylene, said therapeutic portion is formed of Polycarbonate with or without glass fibers, and said form-fitting portion is formed of Silicon.
11. The therapeutic helmet cap of claim 3, wherein said cap-like ventilating portion is formed of Polypropylene, said therapeutic portion is formed of Polycarbonate with or without glass fibers, and said form-fitting portion is formed of E.V.A..
12. The therapeutic helmet cap of claim 3, wherein said cap-like ventilating portion is formed of Polypropylene, said therapeutic portion is formed of Polycarbonate with or without glass fibers, and said form-fitting portion is formed of Polyuretane.
13. The therapeutic helmet cap of claim 3, wherein said cap-like ventilating portion is formed of Polypropylene, said therapeutic portion is formed of Polyamide with or without glass fibers, and said form-fitting portion is formed of Silicon.
14. The therapeutic helmet cap of claim 3, wherein said cap-like ventilating portion is formed of Polypropylene, said therapeutic portion is formed of Polyamide with or without glass fibers, and said form-fitting portion is formed of E.V.A..
15. The therapeutic helmet cap of claim 3, wherein said cap-like ventilating portion is formed of Polypropylene, said therapeutic portion is formed of Polyamide with or without glass fibers, and said form-fitting portion is formed of Polyuretane.
16. The therapeutic helmet cap of any of claims 1 - 15, wherein said outer shell further comprises a pivotable ring mounted about said therapeutic portion.
17. The therapeutic helmet cap of any of claims 1 - 15, wherein said outer shell further comprises a pivotable semi ring mounted about said therapeutic portion.
18. The therapeutic helmet cap of claims 3 and 10 - 17, wherein said ventilating portion includes a plastic net or web.
19. The therapeutic helmet cap of any of the preceding claims, wherein said outer shell includes a plurality of throughgoing bores.
20. The therapeutic helmet cap of any of the preceding claims, wherein said absorbent layer is formed of a sponge material.
21. The therapeutic helmet cap of any of the preceding claims, wherein said absorbent layer is formed of a foam material.
22. The therapeutic helmet cap of any of the preceding claims, wherein said moisture-permeable lining is formed of cotton.
23. A method of manufacturing the therapeutic helmet cap of claims 1, 2 and 4-9, comprises the following steps:
manufacturing said outer shell of the helmet cap by:
molding said therapeutic portion allowing for throughgoing bores to be formed;
forming in the borders of said therapeutic portion, cavities, during the molding process;
cooling off said therapeutic portion;
molding said form fitting portion, next to said therapeutic portion allowing the liquefied plastic material of the borders of said form fitting portion adjacent to said therapeutic portion to penetrate said cavities in the borders thereof and further allowing for throughgoing bores to be formed in said form fitting portion;
cooling off said form fitting portion, thus being integrally affixed to and smoothly merged into said therapeutic portion;
manufacturing said inner lining by:
preparing said absorbent layer;
attaching releasable adhesive means to one side of said absorbent layer;
attaching said moisture-permeable lining to the other side of absorbent layer;
and attaching said absorbent layer to the inner side of said outer shell of the therapeutic helmet.
manufacturing said outer shell of the helmet cap by:
molding said therapeutic portion allowing for throughgoing bores to be formed;
forming in the borders of said therapeutic portion, cavities, during the molding process;
cooling off said therapeutic portion;
molding said form fitting portion, next to said therapeutic portion allowing the liquefied plastic material of the borders of said form fitting portion adjacent to said therapeutic portion to penetrate said cavities in the borders thereof and further allowing for throughgoing bores to be formed in said form fitting portion;
cooling off said form fitting portion, thus being integrally affixed to and smoothly merged into said therapeutic portion;
manufacturing said inner lining by:
preparing said absorbent layer;
attaching releasable adhesive means to one side of said absorbent layer;
attaching said moisture-permeable lining to the other side of absorbent layer;
and attaching said absorbent layer to the inner side of said outer shell of the therapeutic helmet.
24. A method of manufacturing the therapeutic helmet cap of claims 3 and 10-15, comprises the following steps:
manufacturing said outer shell of the helmet cap by:
molding said cap-like ventilating portion allowing for throughgoing bores to be formed;
forming in the borders of said ventilating portion, cavities, during the molding process;
cooling off said ventilating portion;
molding said therapeutic portion next to said ventilating portion allowing the liquefied plastic material of the borders of said therapeutic portion adjacent to said ventilating portion to penetrate said cavities in the borders thereof, further allowing for throughgoing bores to be formed in said ventilating portion and also forming in the opposite borders of said therapeutic portion, cavities, all during the molding process;
cooling off said theraputic portion, thus being integrally affixed to and smoothly merged into said ventilating portion;
molding said form fitting portion next to said therapeutic portion allowing the liquefied plastic material of the borders of said form fitting portion adjacent to said therapeutic portion to penetrate said cavities in the borders thereof and further allowing for throughgoing bores to be formed in said form fitting portion;
cooling off said form fitting portion, thus being integrally affixed to and smoothly merged into said therapeutic portion;
manufacturing said inner lining by:
preparing said absorbent layer;
attaching releasable adhesive means to one side of said absorbent layer;
attaching said moisture-permeable lining to the other side of absorbent layer;
and attaching said absorbent layer to the inner side of said outer shell of the therapeutic helmet.
manufacturing said outer shell of the helmet cap by:
molding said cap-like ventilating portion allowing for throughgoing bores to be formed;
forming in the borders of said ventilating portion, cavities, during the molding process;
cooling off said ventilating portion;
molding said therapeutic portion next to said ventilating portion allowing the liquefied plastic material of the borders of said therapeutic portion adjacent to said ventilating portion to penetrate said cavities in the borders thereof, further allowing for throughgoing bores to be formed in said ventilating portion and also forming in the opposite borders of said therapeutic portion, cavities, all during the molding process;
cooling off said theraputic portion, thus being integrally affixed to and smoothly merged into said ventilating portion;
molding said form fitting portion next to said therapeutic portion allowing the liquefied plastic material of the borders of said form fitting portion adjacent to said therapeutic portion to penetrate said cavities in the borders thereof and further allowing for throughgoing bores to be formed in said form fitting portion;
cooling off said form fitting portion, thus being integrally affixed to and smoothly merged into said therapeutic portion;
manufacturing said inner lining by:
preparing said absorbent layer;
attaching releasable adhesive means to one side of said absorbent layer;
attaching said moisture-permeable lining to the other side of absorbent layer;
and attaching said absorbent layer to the inner side of said outer shell of the therapeutic helmet.
25. A therapeutic helmet cap for the head of a small child comprising any and all features of novelty as described, referred to, exemplified, illustrated or shown, hereinabove or in the accompanying drawings.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL12154397A IL121543A (en) | 1997-08-13 | 1997-08-13 | Therapeutic helmet cap |
| IL121543 | 1997-08-13 | ||
| PCT/IL1998/000366 WO1999008628A1 (en) | 1997-08-13 | 1998-08-06 | Orthopedic helmet cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2300266A1 true CA2300266A1 (en) | 1999-02-25 |
Family
ID=11070500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002300266A Abandoned CA2300266A1 (en) | 1997-08-13 | 1998-08-06 | Orthopedic helmet cap |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2003532433A (en) |
| AU (1) | AU8559298A (en) |
| CA (1) | CA2300266A1 (en) |
| IL (1) | IL121543A (en) |
| WO (1) | WO1999008628A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6651256B1 (en) * | 2002-08-05 | 2003-11-25 | Carol L. Swift | Wearable pillow |
| DE102006017529B4 (en) * | 2006-04-13 | 2008-09-25 | Robby Sacher | molding machine |
| US20070287942A1 (en) * | 2006-06-08 | 2007-12-13 | Tullous Micam W | Headrest and method for correcting non-synostotic cranial deformities in infants |
| KR100889240B1 (en) | 2008-02-28 | 2009-03-16 | (주)지오크리에이티브 | Customized head hair straightening hair and its manufacturing method |
| JP6333514B2 (en) | 2013-03-01 | 2018-05-30 | 株式会社大野興業 | Cranial deformation correction helmet and method of manufacturing the same |
| GB201515877D0 (en) | 2015-09-08 | 2015-10-21 | Technology In Motion Ltd And Ing Corp Spol S R O | Cranial remoulding orthosis and method of manufacture thereof |
| CN105534630B (en) * | 2016-02-01 | 2017-10-24 | 中国人民解放军第三军医大学第二附属医院 | The intelligent infant helmet |
| JP7090454B2 (en) * | 2018-03-30 | 2022-06-24 | 丸紅情報システムズ株式会社 | Skull shape guidance helmet |
| CN111110418A (en) * | 2018-10-30 | 2020-05-08 | 苏州泓舰自动化科技有限公司 | Production method of orthopedic helmet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4776324A (en) * | 1987-04-17 | 1988-10-11 | The Children's Orthopedic Hospital And Medical Center | Therapeutic and protective infant helmets |
| US5308312A (en) * | 1993-03-05 | 1994-05-03 | Pomatto R Craig | Cranial remodeling orthosis |
-
1997
- 1997-08-13 IL IL12154397A patent/IL121543A/en not_active IP Right Cessation
-
1998
- 1998-08-06 CA CA002300266A patent/CA2300266A1/en not_active Abandoned
- 1998-08-06 WO PCT/IL1998/000366 patent/WO1999008628A1/en active Application Filing
- 1998-08-06 AU AU85592/98A patent/AU8559298A/en not_active Abandoned
- 1998-08-06 JP JP2000509372A patent/JP2003532433A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU8559298A (en) | 1999-03-08 |
| WO1999008628A1 (en) | 1999-02-25 |
| IL121543A0 (en) | 1998-02-08 |
| IL121543A (en) | 1998-12-06 |
| JP2003532433A (en) | 2003-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |