Pet Protective Collar
A custom fittable collar for an animal, useful to prevent the animal from contacting injured areas on the body, thus promoting healing of wounds. The collar comprises opposing sheets of flexible material. The resulting collar is rigid enough to resist deformation thus preventing licking or biting of a wound by the animal, but soft enough that the collar is both comfortable to wear, and less likely to catch on other objects, thus improving the safety and wearability of the collar. The collar further comprises a closure assembly adapted for easy placement or removal of the collar. The collar further comprises stitching that creates fold lines to allow the collar to be conveniently folded.
The present application is a continuation of U.S. application Ser. No. 11/847,156 filed on Aug. 29, 2007, now U.S. Pat. No. 8,042,494 issued Oct. 25, 2011 which is hereby incorporated herein by reference in its entirety.
TECHNICAL FIELDThe present invention relates to protective collars, also known as veterinary restraints, for small animals and commonly called “Elizabethan collars” or “e-collars”. The collar is useful for preventing the animal from licking or biting wounds, or disrupting surgical stitches. The collar further prevents disruption of medications applied topically at the site of an injury, or surgical wound.
BACKGROUND OF THE INVENTIONWhen wounded or when a diseased site is present, many animals, for example cats and dogs will instinctively lick or bite at the site of the injury or disease. Repeated licking typically results in slower healing and increased risk of infection. Where animals have undergone a surgical procedure, licking further risks disruption of sutures placed to keep the surgical wound closed while the healing process proceeds. Disruption of a surgical wound is highly undesirable as it subjects the animal to the risk of serious or even fatal internal infections. In any case where a medication is applied, the animal tends to lick it.
As a result, a variety of approaches have been developed to prevent animals from licking or otherwise disturbing wounds or a diseased or injured area while they are healing. For example, one common approach is to use a protective collar known as an “Elizabethan collar” or “E-collar” as they are sometimes called. These collars usually are formed from flexible but relatively rigid materials such as sheets of plastic or cardboard, and are provided in a range of sizes in order to accommodate animals of different size. The E-collar is wrapped around the animal's neck and then secured in place as a means by which to prevent the animal from contacting or otherwise disturbing a wound or site of application of a topical medicament.
One example is provided by U.S. Pat. No. 4,200,057 (Agar), which discloses a method of using a cone-shaped collar made of a semi-rigid material that when secured forms a cone around the animal's neck and which prevents the animal from contacting a region on the animal to which a substance has been applied topically. However, while commonly used, traditional E-collars suffer from a number of limitations that detract from their usefulness.
For example, as discussed above, these collars are usually fashioned from relatively rigid materials. Consequently they are not adapted to folding and take up significant space when on a store shelf, or when stored by an animal owner after purchase and between uses. In addition, the rigid material tends to be uncomfortable for the animal to wear and it can break if bent too far. The rigid materials typically used in E-collars also make it difficult for the animal to eat or drink or get through tight spaces, and the pet is jarred if it bumps into something straight-on. The rigid E-collars can scratch furniture, knock things over and hurt a person. Also, the noise of striking something or even brushing against something can cause stress for the pet.
It is well known in the art that animals dislike the application of the E-collar and will attempt to remove it. This results in increased stress to the animal, and if removed, obviates the utility of the collar to prevent contact of an injured area by the animal, prolonging healing time and increasing the risk of serious infection.
A variety of protective collars have been described, some based on the traditional E-collar design, and others using other designs. For example, U.S. Pat. No. 5,012,764 (Fick & Fair) discloses a cone-shaped E-collar with a custom fittable closure. The device improves upon the traditional collar in that it provides a “one-size fits all” capability. However, the Fick device still suffers from design limitations in that it is a rigid collar that animals dislike.
U.S. Pat. No. 5,469,814 (Moy & Moy) discloses a protective collar that avoids the cone-shape of the traditional E-collar. In the Moy device, the collar comprises a sheet of flexible material sized to cover the entire neck from the back of the mandible to the scapula. Thus, the movement of the neck is restricted such that the animal is prevented from licking or biting at wounds. However, the device is not useful in protecting irritation of injuries to the head as the close fitting design does not prevent pawing of an injury of the head or face.
Similarly, U.S. Pat. No. 4,476,814 (Miller) discloses a donut shaped collar that is wide enough to prevent an animal from turning its head sufficiently in order to lick or chew at an affected area.
Likewise, U.S. Pat. No. 6,244,222 (Bowen) discloses a foam sleeve that like that disclosed in U.S. Pat. No. 5,469,814 covers a region of the animal's neck thereby preventing the animal from bending the neck in order to contact an affected area.
As discussed, the aforementioned E-collars are generally formed from rigid materials, such as plastic, that are uncomfortable and thus not well tolerated by animals. To overcome this problem, some collars have been disclosed that are formed from softer more compliant materials. For example, U.S. Pat. No. 5,133,295 (issued to Lippincott) discloses a collar that comprises two side-by-side rings of soft material, with non-resilient medical padding sewn together along their inner margins. The rings are gathered to form radial pleats that interfere with the ability of the animal to chew or lick affected body parts. However, as the collar could conceivably be bent backwards from the head, it would be possible for an animal to paw at injuries in the head area, again limiting the overall usefulness of this type of collar. Also, a soft e-collar can be easily chewed by the pet due to the inside material being loose.
BRIEF SUMMARY OF EMBODIMENTS OF THE INVENTIONAccordingly it is an object of the present invention to provide a protective collar suitable for use as a veterinary restraint, and which overcomes problems inherent in prior art collars.
It is another object to provide a protective collar comprising resilient yet softer materials than is found in prior art E-collar type devices. To this end, the protective collar of the invention provides first and second sheets of flexible material.
In a variant, between the first and second sheets is sandwiched a resilient padding layer. The padding layer provides sufficient structure to maintain the collar in the desired shape when fitted on an animal, but is soft enough such that the collar is more comfortable than prior art collars.
It is thus an object to provide a protective collar that takes advantage of the cone-shape of traditional E-collars, yet is made of more compliant materials such that an animal fitted with the collar will better tolerate it. The collar may be produced in various sizes to accommodate animals of different size, or may provide multiple closures to permit fitting of a single collar onto animals of differing size. Also, using the multiple closure features, the shape of the cone can be adjusted, for example, to be narrower at the outside, or wider at the outside. The user can conform the shape as desired to conform to the pet's head and neck shape and size.
The resilient padding layer provides sufficient rigidity that the collar will hold its shape when in use. In one embodiment the padding layer is comprised of foam material. To maintain the structure of the collar, the padding layer is secured to the first and second sheets of flexible material.
In one embodiment the padding layer is laminated onto at least one of the first and second sheets of flexible material. Securing the padding to the flexible sheet provides the further advantage of preventing the animal from tearing or otherwise separating the padding layer from the flexible sheets.
The use of stitching may be further used to secure the first and second sheets and padding layer. In one embodiment, radially oriented stitching advantageously provides folding lines to aid in folding the collar for storage when it is not in use.
Fitting the collar on an animal is simple. Fitting involves placing the inner edge of the collar around the animal's neck and then securing the ends of the collar, thus forming a truncated cone, with the large opening facing forward, and the smaller opening fitted around the animal's neck.
The securing means may be any suitable means that will maintain the ends of the collar in contact. In one embodiment the means of securing the collar are hook and loop matable fastener strips such as Velcro™ strips placed substantially at each end of the collar. Other embodiments could make use of hook and loop arrangements, snaps or other like securing means.
The invention further provides a method of protecting an area on an animal's body from undesired contact such as chewing or biting by fitting a collar as described herein. The area to be protected could be a site of a surgical injury, for example surgical stitches, a non-surgical injury, or an area to which a topical medicament has been applied.
Other features and aspects of the invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the features in accordance with embodiments of the invention. The summary is not intended to limit the scope of the invention, which is defined solely by the claims attached hereto.
The present invention, in accordance with one or more various embodiments, is described in detail with reference to the following figures. The drawings are provided for purposes of illustration only and merely depict typical or example embodiments of the invention. These drawings are provided to facilitate the reader's understanding of the invention and shall not be considered limiting of the breadth, scope, or applicability of the invention. It should be noted that for clarity and ease of illustration these drawings are not necessarily made to scale.
Some of the figures included herein illustrate various embodiments of the invention from different viewing angles. Although the accompanying descriptive text may refer to such views as “top,” “bottom” or “side” views, such references are merely descriptive and do not imply or require that the invention be implemented or used in a particular spatial orientation unless explicitly stated otherwise.
From time-to-time, the present invention is described herein in terms of example environments. Description in terms of these environments is provided to allow the various features and embodiments of the invention to be portrayed in the context of an exemplary application. After reading this description, it will become apparent to one of ordinary skill in the art how the invention can be implemented in different and alternative environments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as is commonly understood by one of ordinary skill in the art to which this invention belongs. All patents, applications, published applications and other publications referred to herein are incorporated by reference in their entirety. If a definition set forth in this section is contrary to or otherwise inconsistent with a definition set forth in applications, published applications and other publications that are herein incorporated by reference, the definition set forth in this document prevails over the definition that is incorporated herein by reference.
Referring first to
The resilient padding layer 22, also of a generally similar shape to the first and second exterior sheets 10 and 20, and is sized to be located between the first and second exterior sheets 10 and 20 as shown in
The first and second exterior sheets 10 and 20 can be fashioned from a variety of materials including cloth, rubberized cloth, soft plastic and the like. Apart from the physical quality to provide a soft, flexible surface of the finished assembly, the first and second exterior sheets and the resilient padding between then, when formed into the in-use cone shape needs only to be sufficiently rigid and resilient to be self-supporting. The present invention uses materials that are soft and flexible and specifically avoids the use of rigid plastic sheet materials as is commonly found in traditional E-collars. In one particular, it may be desirable to select a soft-surfaced comfortable material for the inside of the collar adjacent to the animals head and neck, and a more rugged material for the outside of the collar. Also, the outside of the collar may be provided in a decorative motif, and may be made of material that is easily cleaned and/or that is resistant to staining.
The padding layer 22 may also be fashioned from a variety of materials. The material used in the padding layer 22 should be flexible enough to provide a collar that is softer and therefore more comfortable than traditional e-collar, yet is rigid enough to maintain the desired cone-like shape of the collar when worn by an animal and sufficiently resilient to return to its cone shape when bent. It is preferred that the first and second exterior sheets 10 and 20 be quite flexible with little resilience and resistance to bending, while the padding layer 22 be more resilient such that when they are formed into a unit and applied to an animal in a cone shape it will be sufficiently rigid to maintain its cone configuration yet will easily give when hit or pushed or bent and resilient enough to recover its cone shape. Foam plastic is a good material for use as the padding layer, and a wide range of resiliency, and thickness is available.
In the embodiment of
In the embodiment shown in
Stitching can be used to further strengthen the collar while still allowing it to easily bend on contact and also to provide folding points. Radially extending stitching 28a, 28b and 28c comprising two parallel rows, provides some additional rigidity radially and also provides convenient folding points upon which the collar can be folded for storage or packaging, and further strengthen the integrity of the collar when in use. The preferred stitching is zigzag type or parallel rows of straight stitching that is of a selected width dimension such as about ⅛ inch to about ¼ inch and they extend substantially fully across the width from the arcuate edge 14 to the arcuate edge 12. Examples of collars folded for storage or packaging are shown in
The invention further comprises a means of closure, effective to secure the ends of the protective collar, such that when the ends of the protective collar are secured, the collar forms a truncated cone with an inner opening 30 and an outer opening 32 as shown in
To maintain the integrity of the collar, the invention provides for a means of securing the first and second exterior sheets to the resilient padding layer. In one embodiment the means of securing the first and second sheets and padding layers comprises laminating or otherwise adhering the padding layer onto at least one of the exterior sheets of flexible material. In another embodiment, the padding layer is laminated or adhered onto both the first and second exterior sheets. Securing the padding layer to the sheets further prevents the animal from separating the layers of the collar and either reducing the effectiveness of the collar or destroying it altogether. In a preferred embodiment the padding layer is laminated or adhered only to the exterior sheet that will be on the inside of the cone, when formed around the animal's head.
Another construction of the protective collar is shown in
Conveniently, a number of neck closure means may be provided in order to provide the ability to fashion a protective collar capable of fitting different size animals. As shown in
When placed on an animal, the inner opening 30 is adapted to fit securely around the neck of the animal, and the outer opening 32 is of sufficient size to prevent the animal fitted with the protective collar from contacting an area of the body to be protected. If desired, the inner arcuate edge of the collar may be lined with a softer material to increase the comfort of the collar.
Referring to
Notably, these constructions for a protective collar do not have to slip over the head of the pet, but rather can close around the neck.
The exterior sheet or sheets such as sheets 10 and 20 in
The invention further provides a method of using a pet protective collar as described above as a veterinary restraint. The method comprises placing a collar such as that described herein around the neck of an animal, and securing as described. Conveniently, the collar of the invention is suitable to protect an area from contact by the animal's mouth, and yet is comfortable enough to wear that the animal will tolerate the collar.
An additional feature of the invention lies in the ability to fold it into a small package for selling purposes or for the consumer to store it. One folding configuration is shown in
The collar is thus suitable for use in a method of protecting a wound from a surgical procedure, an injury that is non-surgical in nature, or to prevent mouth contact of an area to which a topical medicament has been applied.
When applied, it is known that some animals will use their teeth to try to dislodge the collar. This is where adhering the inside layer to the padding is particularly useful because it prevents the animal from finding or creating a fold by biting.
The foregoing detailed description of exemplary and preferred embodiments is presented for purposes of illustration and disclosure in accordance with the requirements of the law. It is not intended to be exhaustive nor to limit the invention to the precise form or forms described, but only to enable others skilled in the art to understand how the invention may be suited for a particular use or implementation. The possibility of modifications and variations will be apparent to practitioners skilled in the art. No limitation is intended by the description of exemplary embodiments which may have included tolerances, feature dimensions, specific operating conditions, engineering specifications, or the like, and which may vary between implementations or with changes to the state of the art, and no limitation should be implied therefrom. This disclosure has been made with respect to the current state of the art, but also contemplates advancements and that adaptations in the future may take into consideration of those advancements, namely in accordance with the then current state of the art. It is intended that the scope of the invention be defined by the Claims as written and equivalents as applicable. Reference to a claim element in the singular is not intended to mean “one and only one” unless explicitly so stated. Moreover, no element, component, nor method or process step in this disclosure is intended to be dedicated to the public regardless of whether the element, component, or step is explicitly recited in the Claims. No claim element herein is to be construed under the provisions of 35 U.S.C. Sec. 112, sixth paragraph, unless the element is expressly recited using the phrase “means for . . . ” and no method or process step herein is to be construed under those provisions unless the step, or steps, are expressly recited using the phrase “comprising step(s) for . . . ”
While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not of limitation Likewise, the various diagrams may depict an example architectural or other configuration for the invention, which is done to aid in understanding the features and functionality that can be included in the invention. The invention is not restricted to the illustrated example architectures or configurations, but the desired features can be implemented using a variety of alternative architectures and configurations. Indeed, it will be apparent to one of skill in the art how alternative functional, logical or physical partitioning and configurations can be implemented to implement the desired features of the present invention. Also, a multitude of different constituent module names other than those depicted herein can be applied to the various partitions. Additionally, with regard to flow diagrams, operational descriptions and method claims, the order in which the steps are presented herein shall not mandate that various embodiments be implemented to perform the recited functionality in the same order unless the context dictates otherwise.
Although the invention is described above in terms of various exemplary embodiments and implementations, it should be understood that the various features, aspects and functionality described in one or more of the individual embodiments are not limited in their applicability to the particular embodiment with which they are described, but instead can be applied, alone or in various combinations, to one or more of the other embodiments of the invention, whether or not such embodiments are described and whether or not such features are presented as being a part of a described embodiment. Thus the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments.
Terms and phrases used in this document, and variations thereof, unless otherwise expressly stated, should be construed as open ended as opposed to limiting. As examples of the foregoing: the term “including” should be read as meaning “including, without limitation” or the like; the term “example” is used to provide exemplary instances of the item in discussion, not an exhaustive or limiting list thereof; the terms “a” or “an” should be read as meaning “at least one,” “one or more” or the like; and adjectives such as “conventional,” “traditional,” “normal,” “standard,” “known” and terms of similar meaning should not be construed as limiting the item described to a given time period or to an item available as of a given time, but instead should be read to encompass conventional, traditional, normal, or standard technologies that may be available or known now or at any time in the future. Likewise, where this document refers to technologies that would be apparent or known to one of ordinary skill in the art, such technologies encompass those apparent or known to the skilled artisan now or at any time in the future.
A group of items linked with the conjunction “and” should not be read as requiring that each and every one of those items be present in the grouping, but rather should be read as “and/or” unless expressly stated otherwise. Similarly, a group of items linked with the conjunction “or” should not be read as requiring mutual exclusivity among that group, but rather should also be read as “and/or” unless expressly stated otherwise. Furthermore, although items, elements or components of the invention may be described or claimed in the singular, the plural is contemplated to be within the scope thereof unless limitation to the singular is explicitly stated.
The presence of broadening words and phrases such as “one or more,” “at least,” “but not limited to” or other like phrases in some instances shall not be read to mean that the narrower case is intended or required in instances where such broadening phrases may be absent. The use of the term “module” does not imply that the components or functionality described or claimed as part of the module are all configured in a common package. Indeed, any or all of the various components of a module, whether control logic or other components, can be combined in a single package or separately maintained and can further be distributed across multiple locations.
It is appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable subcombination or as suitable in any other described embodiment of the invention. Certain features described in the context of various embodiments are not to be considered essential features of those embodiments, unless the embodiment is inoperative without those elements.
Additionally, the various embodiments set forth herein are described in terms of exemplary block diagrams, flow charts and other illustrations. As will become apparent to one of ordinary skill in the art after reading this document, the illustrated embodiments and their various alternatives can be implemented without confinement to the illustrated examples. For example, block diagrams and their accompanying description should not be construed as mandating a particular architecture or configuration.
Claims
1. A protective collar effective as a veterinary restraint when fitted on an animal, the protective collar comprising:
- a layered assembly comprising; a first sheet comprising a flexible substantially non-resilient material having inner and outer arcuate edges extending between a first end and a second end of the first sheet, the inner and outer arcuate edges comprising single circular arcs, wherein the outer arcuate edge has a substantially greater radius than the inner edge; a second sheet comprising a flexible substantially non-resilient material and having a substantially similar shape to that of the first sheet; wherein when assembled, the first and second sheets form the layered assembly having an outer arcuate edge and an inner arcuate edge and a first end and a second end; the first sheet and the second sheet being formed into the assembly by securing together the outer arcuate edges and the inner arcuate edges and the first and second ends of the first and second sheets; a closure, effective to secure the first and second ends of the protective collar, such that when the first and second ends of the protective collar are secured, a closed configuration is formed having an inner opening and an outer opening, the inner opening being substantially smaller than the outer opening, wherein the outer opening is configured to encompass the wearer's head and the inner opening is configured to encompass a wearer's neck but not the head; wherein the protective collar is sized and shaped to encompass both the wearer's head and neck on different parts of the restraint.
2. The protective collar of claim 1 further comprising a plurality of radial stitching lines at least partially extending between the inner arcuate edge and the outer arcuate edge of the layered assembly, operative to effectively segment the collar into panels, and such that the stitches are further effective as fold lines in order to easily fold the collar for packaging or storage.
3. The protective collar of claim 1 wherein upon securing the closure the collar forms a truncated cone, wherein the outer opening is of sufficient size to prevent the animal fitted with the protective collar from contacting an area of the body intended to be protected and the outer opening is sized to encompass a cranium of the animal.
4. The protective collar of claim 1, wherein a means of securing the first and second sheets to each other comprises the use of stitching.
5. The protective collar of claim 1, wherein the means of closure comprises the use of hook and loop strips located respectively proximate the first and second ends of the collar.
6. The protective collar of claim 1, further providing a means for identifying the animal upon which the collar is fitted.
7. The protective collar of claim 2, wherein the stitching lines comprise a first radial stitching line approximately centrally of the layered assembly between the first and second ends and second and third radial stitching spaces approximately angularly equally from the first radial stitching line.
8. The protective collar of claim 1, wherein the circular arcs comprise semi-circular arcs and the sheets are flat when the collar is completely opened.
9. A protective collar effective as a veterinary restraint when fitted on an animal, the protective collar comprising:
- a layered assembly comprising; a first sheet comprising a flexible substantially non-resilient material having inner and outer arcuate edges extending between a first and second end of the first sheet, the inner and outer arcuate edges comprising circular arcs, wherein the outer arcuate edge has a substantially greater radius than the inner edge; a second sheet comprising a flexible substantially non-resilient material and having a substantially similar shape to that of the first sheet; wherein when assembled, the first and second sheets form the layered assembly having an outer arcuate edge and an inner arcuate edge and a first end and a second end; the first sheet and the second sheet a formed into the assembly by securing together the outer arcuate edges and the inner arcuate edges and the first and second ends of the first and second sheets; a closure, effective to secure the first and second ends of the protective collar, such that when the first and second ends of the protective collar are secured a closed configuration is formed having an inner opening and an outer opening, the inner opening being smaller than the outer opening to provide a truncated cone shape.
10. The protective collar of claim 9, wherein the second radial stitching line is angularly spaced toward the first end, the third radial stitching line is angularly spaced toward the second end, the angular distance from the second radial stitching line to the first end and the angular distance from the third radial stitching line to the second end being each less than the angular distance between the second and third radial stitching lines, whereby upon folding at the second and third angular stitching lines the first end and the second end respectively will be in a position angularly short of the angular distance between the second and the third radial stitching lines.
11. The protective collar of claim 9, wherein the circular arcs comprise semi-circular arcs and the sheets are flat when the collar is completely opened.
12. A protective E-collar, comprising:
- a layered assembly comprising; a first sheet comprising a flexible substantially non-resilient material having inner and outer arcuate edges extending between a first end and a second end of the first sheet; a second sheet comprising a flexible substantially non-resilient material and having a substantially similar shape to that of the first sheet; wherein when assembled, the first and second sheets form the layered assembly having an outer arcuate edge and an inner arcuate edge and a first end and a second end; the first sheet and the second sheet being formed into the assembly by securing together the outer arcuate edges and the inner arcuate edges and the first and second ends of the first and second sheets; a closure, effective to secure the first and second ends of the protective collar, such that when the first and second ends of the protective collar are secured, a closed configuration is formed having an inner opening and an outer opening, the inner opening being substantially smaller than the outer opening; wherein only the inner opening of the two openings is adapted to fit securely around the neck of the wearer.
Type: Application
Filed: Oct 24, 2011
Publication Date: Feb 16, 2012
Inventor: Linda Markfield (Santa Monica, CA)
Application Number: 13/280,071
International Classification: A01K 13/00 (20060101); A61D 9/00 (20060101);