Dental station and system for domestic animal dental care

A dental station for improving domestic animal dental care and oral hygiene, dental station having a body including a supporting structure which includes a plurality of receiving holding formations to receive and support one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner.

FIELD OF THE INVENTION

The present invention relates to a dental station for use in improving domestic animal dental care and oral hygiene.

In particular the present invention relates to a dental station and system for aiding maintaining oral hygiene of a domestic pet such as a dog or a cat, and which reduces onset of some form of periodontal disease that can otherwise lead to halitosis and pain.

The invention has been developed primarily for use in/with a dental station for improving oral hygiene of a domestic animal such as a dog or a cat and will be described hereinafter with reference to this application. However, it will be appreciated that the invention is not limited to this particular field of use.

BACKGROUND OF THE INVENTION

According to veterinary statistics, by three years of age, most dogs and cats have some evidence of periodontal disease. Periodontal disease in canines is a bacterial infection of the mouth usually progressing from plaque and mildly inflamed gums to established gingivitis, which may ultimately involve bone and/or tooth loss.

Periodontal disease (gum disease) is caused by bacterial infection that builds up in plaque which is made up of food particles and saliva. Plaque readily sticks to tooth surface above and below the gum line. If plaque is not removed, minerals in saliva will calcify the plaque into dental calculus (tartar) which firmly attaches to the teeth. Over time bacterial infection in tartar can spread under the gum line.

Bacteria in the sub-gingival plaque can cause irreversible changes to occur in the dentition including destruction of supportive tissues and bone, resulting in red gums, swollen gums, receding gums, bleeding gums, bad breath, loosening of teeth, loss of appetite and reluctance to eat. Bacteria under the gum line which if allowed to progress, can enter the blood stream and begin to move around the body causing inflammation in blood vessels, kidneys, heart and brain.

In recent years, veterinarians have become increasingly aware of the need for improved canine and feline dental care and regular brushing of a pet's teeth is recommended to prevent decay and gum disease. Many dental tooth brush varieties and dental pastes are available on the market, along with different designs and different formulations.

Many pet dental kits come with a microfibre finger cloth with which to start, and with toothpaste and a double headed toothbrush, specifically designed for your pet's mouth. Finger brushes can also be used.

However, it is often the case that pet owners and pets find the practice of brushing a pet's teeth distasteful and veterinary recommendations for frequent brushing is generally ignored to the detriment of the animals' teeth and gums.

Recognizing the need for improved canine dental care and the reluctance of pet owners to brush their animals' teeth, the pet industry has developed a wide variety of chew toys that provide a cleaning of the dog's teeth and a massaging of its gums. A popular chew toy for such purposes comprises a short length of cotton rope having large knots formed near the ends thereof to resemble a classic dog bone configuration. As the dog chews the toy, the soft cotton rope provides a cleaning and flossing of the dog's teeth however, cotton is not inherently attractive to dogs due to lack of texture.

A wide variety of rawhide chew toys, some of which have become very popular, have been developed to be more attractive to dogs. Rawhide is the hide of an animal, such as from cattle, pigs, buffalo, deer or elk, which has not been exposed to tanning. Rawhide has an inherent advantage over cotton in dog chew toys because of the attractiveness of its texture to dogs. Also, rawhide is more abrasive than cotton or rubber material from which chew toys are made, and arguably provides improved plague removal and superior cleaning of the animal's teeth when chewed. However, the rawhide chew toys to date do not provide the beneficial flossing effect of the cotton chew toys. In addition, it is known that domestic animals such as dogs and cats have predominant sides of their rear molars and premolars that they prefer to chew on. Accordingly it is usually the case that the particular preferred side for chewing will benefit from scraping effect of chewing and less plaque and tartar buildup, however the converse is that the non-preferred chewing side will not receive the same benefit. This is a clear disadvantage of conventional chew toys. Whatever side the animal prefers to chew on will leave one side more plaque and tartar buildup; this usually equates to approximately in most cases up to 40% cleaner on one side than the least preferred side to chew on. It would be an advantage to have a system or device that is able to assist cleaning both sides of the jaw more evenly and consistently.

Products such as Greenies™ and Dentabones™ encourage your pets to chew, which helps rub plaque off, and also spread protective saliva around teeth. However such products only offer benefits that focus on rear molars and premolars hence front of the teeth such as canines and incisors remain vulnerable target sites for plaque and tartar buildup and periodontal disease.

Feeding fresh raw bones and other animal products can greatly aid the hygiene of the mouth. Not every dog or cat can have bones and there are some animals that have medical conditions or gut sensitivities that prohibit the use of bones in the diet.

Recent years have seen the addition of effective therapeutic agents such as a dental cleansing agent or breath freshener to pet chew toys as well as an added attractant such as a flavoring or scent. While scents and flavorings have been added to rawhide chew toys, they are typically applied to and carried solely by the surface of the rawhide. Once the animal licks the flavoring from the toy, any future enticement to chew provided by the scent or flavoring is lost and the chew toy may be ignored. The same would be true of a therapeutic agent carried by the surface of the chew toy. The chew toy of the present invention not only utilizes the inherent attractiveness of the rawhide while providing the beneficial flossing found in many of the cotton toys, it can effectively carry and deliver one or more therapeutic agents and/or carry an added animal attractant.

In view of the above, it is desirable to have a dental device that addresses one or more of the prior art deficiencies.

SUMMARY OF INVENTION

According to a first aspect of the present invention, there is provided a dental station for improving domestic animal dental care and oral hygiene, the dental station including a supporting structure which includes a plurality of receiving holding formations to receive and support one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner.

The present invention represents an advance over prior art dental systems because the dental station provides a practical way of enabling and attracting a canine to chew food elements on both sides of the jaw to allow effective cleaning of teeth.

The supporting structure can include a structure which aids in tending the domestic animal to use the one or more of a plurality of preselected sized and shaped chewable food elements held in a protruding manner to encourage use of at least one set of particular teeth of the domestic animal.

Preferably the at least one set of particular teeth of the domestic animal includes at least one of: Canines; Incisors; Premolars; Molars. The ability to provide a system which encourages and facilitates cleaning of front teeth such as the canines and incisors is a particular advantage and represents an advance over the prior art chew toys and the like.

The dental station can have the supporting structure configured to define one or more shaped depots for tending a domestic animal into a particular orientation relative to at least part of one of the one or more shaped depots; a plurality of receiving holding formations located on the supporting structure of the least one of the one or more shaped depots, the holding formations adapted to receive and support one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner; wherein, in use, the chewable food elements extend into the at least one or more of the shaped depots from a predefined direction and height to be accessible by particular teeth of the domestic animal.

Preferably the supporting structure includes shaped walls configured to define one or more depots for a domestic animal; a plurality of receiving holding formations located on the shaped walls, the holding formations adapted to receive and support one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner wherein the chewable food elements extend into the one or more depots from a desired direction and height within the depot to both encourage approach by a domestic animal and use of teeth on either side of the animal's mouth.

The dental station according to the present invention does not give a dog or cat an option to chew on a preferred side. It achieves this by locating the chewable food elements in such a way that there is only one option of which teeth are used to access the chews, i.e., the location of the chewable food elements relative to the depots encourages orientation and alignment of the dog or cat to eat the chew from a preselect side where both sides have exactly the same amount of chewing action on both side of its rear molars and premolar resulting in both side being equally cleaned.

Preferably the supporting structure including at least one of the plurality of receiving holding formations is able to receive and hold one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner to encourage use of particular teeth of the domestic animal.

The supporting structure can include shaped walls including or adjacent to at least one of the plurality of receiving holding formations wherein the shaped walls aids in tending the domestic animal to approach the one or more of a plurality of preselected sized and shaped chewable food elements held in a protruding manner from a particular direction to encourage use of particular teeth of the domestic animal including front teeth such as canines and incisors.

The supporting structure can include shaped floors including or adjacent to at least one of the plurality of receiving holding formations wherein the shaped walls aids in tending the domestic animal to approach the one or more of a plurality of preselected sized and shaped chewable food elements held in a protruding manner from a particular direction to encourage use of particular teeth of the domestic animal.

Preferably the plurality of receiving holding formations are formed to receive and hold a plurality of preselected sized and shaped chewable food elements in a protruding manner.

The plurality of receiving holding formations of the dental station are preferably supported by the supporting structure at a particular predefined height wherein the height location tends the domestic animal to approach the one or more of a plurality of preselected sized and shaped chewable food elements held to encourage use of particular teeth of the domestic animal. This is an advantage for the cleaning and maintaining of clean front teeth such as canines and incisors which is a departure from and advance over the prior art.

The plurality of preselected sized and shaped chewable food elements is preferably held proud of a supporting structure wall.

The plurality of preselected sized and shaped chewable food elements is preferably held proud of a supporting floor.

Preferably the plurality of preselected sized and shaped chewable food elements is held proud of a supporting structure wall adjacent at least one protruding teeth engaging formations wherein as the domestic animal chews the one or more of a plurality of preselected sized and shaped chewable food elements the protruding teeth engaging formation engage the teeth of the domestic animal in a cleaning manner.

The at least one protruding teeth engaging formations can be resiliently flexible.

Preferably the at least one protruding teeth engaging formations are tentacle formations.

In one aspect of the present invention, the supporting structure can include a plurality of depots with different ones of the plurality of receiving holding formations to receive and support one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner wherein the domestic animal can progress from station to station to achieve cleaning of different sets of particular teeth of the domestic animal.

The plurality of depots can be formed by the supporting structure in a radiating arrangement from a central point.

Preferably the central point forms a fixing point by a fixing means able to be received and extend through the support and connect to the support.

In a related aspect of the present invention there is disclosed a dental station for improving domestic animal dental care and oral hygiene, the dental station having a supporting structure which includes: at least one shaped wall and a shaped floor; a plurality of receiving holding formations supported on or adjacent the shaped walls and/or shaped floor by the supporting structure to receive and support one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner; wherein the supporting structure allows for positioning of the one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner in at least one of: location; height above base; wherein the form of the dental structure aids in tending the domestic animal to use the one or more of a plurality of preselected sized and shaped chewable food elements held in a protruding manner to encourage use of at least one set of particular teeth of the domestic animal including at least one of: Canines; Incisors; Premolars; Molars. In particular, the ability to provide a system which encourages and facilitates cleaning of front teeth such as the canines and incisors is a particular advantage and represents an advance over the prior art chew toys and the like.

The supporting structure preferably includes shaped walls including or adjacent to at least one of the plurality of receiving holding formations wherein the shaped walls aids in tending the domestic animal to approach the one or more of a plurality of preselected sized and shaped chewable food elements held in a protruding manner from a particular direction to encourage use of particular teeth of the domestic animal.

The supporting structure can include shaped floors including or adjacent to at least one of the plurality of receiving holding formations wherein the shaped walls aids in tending the domestic animal to approach the one or more of a plurality of preselected sized and shaped chewable food elements held in a protruding manner from a particular direction to encourage use of particular teeth of the domestic animal.

Preferably the plurality of receiving holding formations are formed to receive and hold a plurality of preselected sized and shaped chewable food elements in a protruding manner.

The plurality of receiving holding formations are preferably supported by the supporting structure at a particular predefined height wherein the height location tends the domestic animal to approach the one or more of a plurality of preselected sized and shaped chewable food elements held to encourage use of particular teeth of the domestic animal.

The plurality of preselected sized and shaped chewable food elements is preferably held proud of a supporting structure wall.

The plurality of preselected sized and shaped chewable food elements is preferably held proud of a supporting floor.

The plurality of preselected sized and shaped chewable food elements is preferably held proud of a supporting structure wall adjacent at least one protruding teeth engaging formations wherein as the domestic animal chews the one or more of a plurality of preselected sized and shaped chewable food elements the protruding teeth engaging formation engage the teeth of the domestic animal in a cleaning manner.

Preferably at least one protruding teeth engaging formations are resiliently flexible.

The at least one protruding teeth engaging formations can be tentacle formations.

Preferably the supporting structure has a plurality of depots with different ones of the plurality of receiving holding formations to receive and support one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner wherein the domestic animal can progress from station to station to achieve cleaning of different sets of particular teeth of the domestic animal.

The plurality of depots can be formed by the supporting structure in a radiating arrangement from a central point.

Preferably the central point forms a fixing point by a fixing means able to be received and extend through the support and connect to the support.

In a further related aspect of the present invention there is disclosed A system for domestic animal dental care including the steps of: a. providing a plurality of preselected sized and shaped chewable food elements; b. providing a supporting structure for supporting the plurality of preselected sized and shaped chewable food element; wherein the supporting structure allows for positioning of the one or more of a plurality of preselected sized and shaped chewable food elements in a protruding manner in at least one of: i. location, ii. height above base, iii. Angle; wherein the form of the supporting structure aids in tending the domestic animal to use the one or more of a plurality of preselected sized and shaped chewable food elements held in a protruding manner to encourage use of at least one set of particular teeth of the domestic animal including at least one of: i. Canines, ii. Incisors, iii. Premolars, iv. Molars.

In a further related aspect of the present invention there is described a depot for tending a domestic animal into a particular orientation to clean the animal's teeth including: a support structure having: a floor section, a perimeter wall portion, and a front recessed or shallow wall relative to the perimeter wall portion to allow access to the floor section for a domestic animal in a forward or front on position, wherein the perimeter wall further includes oppositely disposed holding receiving formations adapted to receive and hold a preselected shaped sized chew food element extending at an angle to the perimeter wall portion for chewing on rear right and left of the animal's teeth; a frame plate sized and shaped to fit the floor of the support structure, the frame plate having: a frame part surrounding a window opening, the window opening adapted to receive a shaped sized chewable food block therethrough, wherein an underneath portion of the frame part includes a recess perimeter about the window opening, and a locking opening in the frame part for receiving a locking knob to releasably retain the frame plate to the floor; a shaped chewable food block including: a base having a shape substantially corresponding to the window opening, and protruding food elements extending from the base through the window in an assembled condition, and a series of flange elements extending from edges of the base adapted fit within and about the recess perimeter; complimentary releasable locking means on the support structure and the frame plate to retain the shaped chewable food block substantially in a sandwiched position in the depot between the frame plate and the floor for consumption by the animal; wherein the relative orientation of the front recessed shallow wall and the shaped chewable food block urges the domestic animal to face forward toward the shaped chewable food block when in the depot and thereby influence chewing of the protruding food elements using its front teeth.

The complimentary releasable locking means can include a longitudinal opening in the floor adjacent the recessed or shallow wall, and a locking knob having a shaped locking tab wherein the locking tab is releasably engageable with the longitudinal opening.

Preferably the complimentary releasable locking means further includes a tab extending from the frame part of the frame plate away from the longitudinal opening, and a recess opening between the floor of the support structure and perimeter wall distal to the shallow wall, wherein the tab is adapted to be received in a releasably locking position in the recess opening in an assembled condition.

Preferably, in an assembled condition the frame plate is positioned over the shaped chewable food block so that flange elements thereof are received by the recess perimeter of the frame plate, and tab member is slidably received in the recess opening.

The depot can further include: a substantially non-slip rubber matt underneath the floor which increases friction with a supporting surface, and an access port with plug in the rear of the floor for allowing pouring in of fluid material such as sand or water for added stability.

In a further related aspect there is described a depot for improving domestic animal dental care and oral hygiene including: a support structure having: a floor section, a perimeter wall portion, and a front recessed or shallow wall relative to the perimeter wall portion to allow access to the floor section for a domestic animal in a forward or front on position, wherein the perimeter wall further includes oppositely disposed holding receiving formations adapted to receive and hold a preselected shaped sized chew food element extending at an angle to the perimeter wall portion for chewing on rear right and left of the animal's teeth; a brush plate sized and shaped to fit within the floor section of the support structure, the brush plate having a plurality of substantially upright brush members forming a brush field for removing plaque and tartar and a series of spaced apart insertion ports for receiving a shaped and sized chewable food element interspersed with the brush field; a holding means beneath the brush plate for securing the shaped and sized chewable food elements in the insertion position; and a releasable locking means for securing the brush plate to the floor of the support structure.

The holding means can be located on the floor section of the support structure. Preferably the depot further includes a support plate intermediate the floor section of the support structure and the brush plate, the support plate having a series of openings corresponding with insertion openings in the brush plate, forming the holding means for receiving and holding the chewable food elements interspersed within the brush field. The support plate adds stability to the depot by locating the brush plate, minimizing movement of the brush plate as the chew elements are being sought and subject to chewing by an animal, and providing an anchor with the support structure. In addition, the support plate protects the support structure from damage by an animal and can be used multiple times.

Preferably the support plate includes a molded rubber central portion and a plastic frame border, the rubber central portion having a plurality of malleable/flexible openings forming a holding means adapted to receive and locate preselected sized and shaped chewable food elements. The molded rubber central portion allows the chew element to be received by enlargement as an insertion end of the food element is inserted and thereafter elastically forming a closure about the insertion end. The plastic frame border is relatively more rigid than the rubber centre portion and in one embodiment can slidable engage with a recess opening in a perimeter wall section for anchoring the support plate to the support structure.

The support plate can further include a locking opening in a forward portion of the plastic border coinciding with locking opening of the brush plate for receiving a locking tab on a locking knob.

The depot can further include a complimentary engagement means on the support plate and a portion of the perimeter wall to retain the support plate in a stable position in use.

The complimentary engagement means can include a flange extending from a portion of the plastic border of the support plate and a recess opening in the perimeter wall wherein the flange is adapted to releasably and slidably engage with the recess opening.

The support plate can further include a series of spaced apart rib members adding structural strength to the central portion.

Benefits of the system include one or more of:a. Encourages domestic animal like canine to graze on shaped chewable food elements on both sides of oral cavity;b. Different chews and locations help to cleans all teeth, i.e., anterior and posterior teeth and all surfaces;c. Physical hindrance created by the configuration of the dental station orients an animal to left and right chewing and inside and outside surfaces of tooth cleaning;d. The ability to provide a system which encourages and facilitates cleaning of front teeth such as the canines and incisors is a particular advantage and represents an advance over the prior art chew toys and the like.e. The dental station can accommodate a plurality of animals at the same time

Other aspects of the invention are also disclosed with reference to accompanying drawings and examples.

DESCRIPTION OF PREFERRED EMBODIMENTS

It should be noted in the following description that like or the same reference numerals in different embodiments denote the same or similar features.

Referring to the drawings there is shown a dental station11for improving domestic animal dental care and oral hygiene. As shown broadly in reference toFIG.1, the dental station11in one embodiment includes a supporting structure13, which includes a plurality of receiving holding formations42to receive and support one or more of a plurality of preselected sized and shaped chewable food elements22aand22bin a protruding manner. The location and shape of the chewable food elements in the holding formations provide for effective cleaning of an animal's teeth (seeFIG.13) on both sides of the upper and lower teeth, front and internal surfaces.

As shown, the supporting structure13is configured to define one or more shaped depots200and201for tending a domestic animal into a particular orientation relative to at least part of one of the one or more shaped depots. In the one or more depots there is shown a plurality of receiving holding formations located on the supporting structure13of the least one of the one or more shaped depots. The holding formations are adapted to receive and support one or more of a plurality of preselected sized and shaped chewable food elements21,22aor22bin a protruding manner into a depot. In use, the chewable food elements extend into the at least one or more of the shaped depots from a predefined direction and height to be accessible by particular teeth of the domestic animal.

As show in the figures, the supporting structure13includes shaped walls configured to define the one or more depots for a domestic animal. There is shown a plurality of receiving holding formations42and43located on the shaped walls of the support structure and the holding formations are adapted to receive and support one or more of the plurality of preselected sized and shaped chewable food elements in a protruding manner. The chewable food elements extend into the one or more depots from a desired direction and height within the depot to both encourage approach by a domestic animal and use of teeth on either side of the animal's mouth.

As shown inFIGS.1and7, the supporting structure13comprises opposite shaped external walls13aand internal shaped wall13eextending therebetween, the walls13abeing adjacent to the holding receiving formations42. In the embodiment shown inFIG.1the combined shaped walls and holding receiving formations42, located adjacent thereto, are adapted to receive and hold a preselected shaped and sized chewable food element22aand22bin a protruding manner from a desired direction to both encourage approach by a domestic animal and use of teeth on either side of the animal's mouth.

The holding formations42include a releasable engagement structure for holding the chewable food element in a protruding condition comprising a mounting portion33in walls13ahaving an internal screw thread and a mating holding pin34releasably engageable in the mounting portion. As shown in the figures, the pin includes a head having a recess for receiving a screwdriver or like for fastening or disengaging and releasing the holding pin from the mounting portion so that a chewable food element can be received and replaced once exhausted.

InFIG.1, the support structure13shows shaped walls13aare arcuate and shaped internal wall13eis concave, wherein the shaped walls13aand shaped internal wall13eform a depot A. The depot A can further include a shaped floor section13c, which floor section is substantially circular and bounded by a perimeter wall14at least a portion of which is received within or integral with the concave wall13eand on which portions of the shaped walls13aof the support structure is mounted.

By the combination of various holding formations and shaped walls of the support structure, an animal is hindered sufficiently such that, for example, a first shaped chew22ais accessible only on the right side of the animal's oral cavity allowing cleaning of teeth on the right (referFIG.2). Similarly, second shaped chew22bprotruding from the second holding receiving formation42in the shaped wall13aoffers sufficient hindrance to approach by an animal such that the protruding chewable food product is accessible only on the left side of the animal's oral cavity allowing cleaning of teeth on the left upper and lower teeth (canine teeth can be best seen inFIG.14).

InFIGS.2and3, the dental station further includes a chewable food and cleaning insert structure230adapted to be located in depot A. The chewable food and cleaning insert structure230includes a bottom platform233and a top portion234separated by a chamfered edge235, the insert having a complementary shape with the depot A to conform with confines therein. In this embodiment, the shaped floor section of depot A and the insert230include mating engagement means to releasably locate the insert structure on the floor13cwithin the depot A so that the insert structure is stably held while an animal grazes.

With particular reference toFIGS.1to3, the mating engagement means comprise a plurality of flange elements232located beneath the bottom platform233of the insert230, and a series of spaced apart arcuate recesses231in the floor section13cof the depot A. The flanges232have an inverted T-configuration shaped to slidably engage with the spaced apart arcuate recesses231to releasably secure the insert structure230to the floor section13cof depot A.

The insert230further includes a series of spaced apart longitudinal alternating teeth brushing holding formations236and chewable food element holding formations237extending across the top portion234. The alternating holding formations236and237are configured to receive complimentary alternating teeth brushing structures238and chewable food elements239respectively.

InFIGS.2and3, the teeth brushing holding formations236include a shallow inverse T-shape recess within the top portion234for receiving a longitudinal teeth brushing structure238laterally from the peripheral edge and in slidable engagement therethrough. The teeth brushing structures238include an inverse T-shape base insert240, a shaped head portion241and brush elements242mounted on or attached to the shaped head portion, whereby the brush elements are arranged to extend at an angle from the head portion241and between and adjacent to the chewable food elements239.

In the embodiment shown inFIG.3the shaped head portion241of the teeth brushing structures is substantially triangular with angled side portions forming in the main an arrow head structure having symmetrical angled side portions on which the brush elements242are mounted so that the brush elements242extend substantially perpendicular to the respective angled sides of the arrow head, and between rows of the chewable food elements239.

The insert structure230further includes chewable food element holding formations237for receiving chewable food elements239laterally from the peripheral edge in slidable engagement therethrough. The chewable food element holding formations237include a relatively deep frusto-conical base recess extending from the top portion234within the insert structure, and a contiguous narrow slotted opening in the top surface234, the holding formations extending across the insert230and alternating with the teeth brushing holding formations. The chewable food elements239include a shaped base243having a complementary shape to the frusto-conical base recess, a neck portion extending upwardly from the shaped base extending through the slotted opening, ending in a spherical head245. The location of the chewable food elements22aand22bat a height H1above the level of the insert230provides an arrangement to assist cleaning of all teeth surfaces of an animal such as a canine. The arrangement of the insert structure230also represents a significant benefit because the head portion of the chewable food elements combined with the teeth brushing structures238, encourages an animal to continue chewing and promotes cleaning of different teeth and tooth surfaces and gums to the chewable food elements22aand22b.

Now referring toFIGS.5to8, a further embodiment is shown in which the dental station11includes a support structure13, and a plurality of holding receiving formations42and43to receive and support one or more of a plurality of preselected sized and shaped chewable food elements22a,22band21in a protruding manner.

InFIGS.5to8, the support structure13of the dental station11includes a pair of opposite shaped walls13ainterconnected by a body portion13b, the body portion having opposing concave walls13eand13fextending transverse to and interconnecting the opposite walls13a. The shaped walls13aand concave wall13fform a depot B in the station11spaced from and oppositely disposed to depot A.

The depot B can further include a shaped floor section13g, which floor section is substantially circular and bounded by a perimeter wall44at least a portion of which is received within or integral with the concave wall13gand on which portions of the shaped walls13aof the support structure is mounted.

The depot B can further include a shaped floor section13gwhich is substantially circular and bounded by perimeter wall44at least a portion of which is received within the concave wall13fand on which portions of the shaped walls13aof the support structure is mounted.

In this embodiment, the shaped walls13aand body13bare configured to accommodate a plurality of depots. As shown, depot A and depot B in this embodiment are spaced and oppositely disposed, and each attached to opposing concave wall surfaces13eand13fof the body13b. The plurality of depots in the station allows for use by multiple animals at the same time.

In this embodiment the dental station11further includes a holding receiving formation43mounted to a portion of the body13bof support structure13and extends into the floor section of depot B. The holding receiving formation43includes a torso45shaped to locate within the confines of concave wall13f, a nose48and a holding sub-assembly43a, intermediate the torso45and nose48, comprising a chewable food element holding receptacle49and a closure50.

The holding receiving formation43and body13bcomprise mating engagement means including a threaded pin47on a portion of the torso45and a mating nut46extending through an opening in body13b. In attaching the torso to the body, the holding receiving formation43is slidably inserted across the floor13section13gand located beneath the body13bwithin concave wall13f.

As shown inFIGS.9and10with closure50removed, the chewable food element holding receptacle49of the holding sub-assembly43aincludes dual chewable food element mounts60and61for receiving at least a portion of a shaped chewable food element20and21respectively therein.

As shown inFIG.10, the chewable food element mounts60and61are oppositely and symmetrically disposed at an angle relative to a centre line A-A′ extending through the holding receiving formation43.

It can be seen that shaped chewable food element20and21comprise a base portion71shaped to locate within respective mount60and61, and a bullet-shaped head protruding into the floor section of depot B at an angle to the centerline A-A′ at a height H1above the floor of depot B.

Holding sub-assembly43aincludes a releasable engagement means on the chewable food element holding receptacle49and closure50. As shown inFIGS.9and10the releasable engagement means comprises a slot73in the chewable food element holding receptacle49and a mating pin74adapted to pass through an opening in the closure aligned with the slot73. The slot can include an internal screw thread and pin74a mating threaded section for releasably engaging therein. As shown in the figures, the pin74includes a recess for receiving a screwdriver or like for fastening or disengaging and releasing the holding pin from the mounting portion so that the closure can be opened and a chewable food element can be received and replaced once the bullet head is exhausted.

InFIGS.5to8, closure50of the holding sub-assembly43ais shown positioned over the chewable food element holding receptacle49. Closure50includes an internal structure (not shown) which cooperates with mounts60and61such that when in a closed location (shown inFIGS.5to8) the base portion71of the chewable food element21is enclosed providing a stable support for grazing of the bullet head by an animal.

As shown inFIGS.7and8, the holding receiving formation43provides a structure having an angle A1between the torso and nose which is designed to partition the depot B, and in conjunction with the chewable food elements20and21and opposite walls13aprovide effective hindrance to a grazing animal that chewable food elements20and21can only be grazed on one side of the animal's oral cavity.

Referring toFIGS.12to15there is shown a further embodiment of the present invention providing an alternative dental station130. The dental station130comprises a shaped depot131having a floor section132(seeFIG.14), a perimeter wall133and a front recessed or shallow wall134to allow access to the depot for a domestic animal in a forward orientation. The perimeter wall further includes holding receiving formations135adapted to receive and hold a preselected shaped sized chew food element136. A rear section of the floor and wall of the depot includes a recess opening137and a front portion of the floor close to the front recessed or shallow wall134is a longitudinal opening138in the floor. As best shown inFIGS.21and22, the walls of the depot are hollow and adapted to receive a fluid material such as sand or water to weigh and therefore add stability to the station when accessed by an animal for dental cleaning.

The dental station130further includes a frame plate139sized and shaped to fit the floor of the depot. The frame plate having a frame part140surrounding a window opening to receive a food block141therethrough, and a locking opening142in the frame for receiving a locking tab146on locking knob143. The preselected shaped sized food block141as shown inFIG.13comprises a plurality of rows and columns of a shaped chew pieces thereon having a substantially square frustum configuration with trapezoidal faces.

As shown inFIG.15an underneath portion of the frame plate139includes a recess perimeter144about the window opening adapted to receive flange elements145of the food block141therein so as to securely retain the food block sandwiched between the floor and frame plate for access. In this embodiment, the food block141has a square or rectangular base generally corresponding to the shape of the recess perimeter144, however it is understood that the shape of the recess perimeter, window opening, and food block can be varied.

The relative orientation of the front recessed wall134and the shaped sized food block141means the domestic animal is constrained to facing forward toward the food block141in the depot and as such the animal is influenced to chew the food elements using its front teeth. The frame plate139acts to retain the food block substantially in position in the depot for consumption. The combination of food elements141and136allows for and indeed encourages chewing and scraping of front, rear, right and left teeth of the animal.

The frame plate further includes a tab member147extending rearwardly from a portion of the frame part adapted to be received in a releasably locking position in recess opening137.

In an assembled condition as shown inFIG.15, the frame plate139is positioned over the food block141so that flange elements145thereof are received by the recess perimeter145of the frame plate and tab member147is slidably received in recess opening137. As further shown inFIG.15, the depot131includes a substantially non-slip fitted rubber matt149which increases friction with a supporting surface and an access port148with plug168in the rear of the floor for allowing pouring in of fluid material such as sand or water for added stability. When the frame plate and food block are in position, the locking knob143is inserted within the opening142and locking tab is received through locking opening142. Thereafter the locking knob is turned to alter the orientation of the locking tab with respect to the locking opening142to retain the frame plate on the floor over the food block. A portion of the food block is adapted to sit proud of the frame plate. The configuration of the depot together with the preselected shape and size of the food block helps to orient a domestic animal so the front teeth of a domestic animal are preferentially cleaned.

FIGS.16to22show a further embodiment of the dental station in accordance with the present invention showing an alternative dental station150. The dental station150comprises a shaped depot131having a floor section132(seeFIG.17), a perimeter wall133and a front recessed or shallow wall134to allow access to the depot for a domestic animal in a particular orientation. The perimeter wall further includes holding receiving formations135adapted to receive and hold a preselected shaped sized chew food elements136. As shown inFIG.18, the chewable food elements can be of any shape however they include an externally threaded hollow insert stem180adapted to be received by mating complimentary threaded section in the holding receiving formations135. In this way the chews are substantially anchored to the holding formations and therefore easy to insert and replace but problematic for easy removal by an animal. The hollow insert stem also allows removal with an insert tool from the holding formation for replacement.

A side section of the floor and wall (seeFIG.22) of the depot includes a recess opening151, and a front portion of the floor close to the front recessed wall includes a longitudinal opening138in the floor. As best shown inFIGS.21and22, the walls of the depot are hollow and adapted to receive a fluid material such as sand or water to weigh and therefore add stability to the station when accessed by an animal for dental cleaning.

The dental station150further comprises a brush plate153and an intermediate support plate152disposed between the floor of the support structure and the brush plate in an assembled condition. The support plate152includes a molded rubber central portion154and a plastic frame border155. The rubber central portion154includes a plurality of malleable/flexible openings156forming a holding means adapted to receive and locate preselected sized and shaped chewable food elements157. The support plate further includes a locking opening158in a forward portion of the plastic border coinciding with locking opening163of the brush plate153for receiving a locking tab146on a locking knob143.

As shown inFIG.22the support plate also includes a flange159extending from a portion of the plastic border155which is adapted to releasably and slidably engage with the recess opening151. The support plate further includes a series of spaced apart rib members160adding structural strength to the central portion154.

The brush plate153comprises a plastic molded plate having rows of upright brushing members161forming a brush field170, interspersed with a plurality of inserts162for receiving the food members157therethrough. The inserts162are aligned with the each flexible openings156in the support plate. The chewable food elements are shown including a barbed insertion head and a shaped spherical chewable head spaced by a stem. The insertion head is adapted to extend through an insert162in the brush plate and penetrate the corresponding aligned flexible opening156in the support plate, wherein once received by the flexible opening162the barbed head substantially prevent removal of and maintains the head exposed within the brush field and assists retaining the brush plate153in connection with the support plate152.

The brush plate further includes a forward opening163aligned with opening158and138for receiving the locking knob143and locking tab142. In an assembled condition as shown inFIGS.20to22, the support plate153is received on the floor of the depot and flange159is received by mating recess151. In this position the opening158is aligned with the opening138in the floor of the depot. The brush plate153is then disposed over the support plate and opening163and inserts162are aligned with corresponding openings158and156respectively. The preselected chewable food elements157are inserted in inserts162and received by corresponding aligned openings156in the support plate wherein the barbed head of the chewable food acts as an anchor to assist to retain the brush plate to the support plate.

When the brush plate and support plate are in position, and food elements have been inserted and received by the openings156, the locking knob143is inserted within the opening163and142and locking tab is received through locking opening138in the floor of the depot. Thereafter the locking knob is turned to alter the orientation of the locking tab with respect to the locking opening138to retain the frame plate on the floor over the food block. As further shown inFIG.22, the depot can include a substantially non-slip rubber matt149fitted underneath the floor, which increases friction with a supporting surface. The floor of the depot also has an access port148with plug168in the rear of the floor for allowing pouring in of fluid material such as sand or water for added stability.

In this embodiment, the plurality of chewable foods interspersed within the brush field encourages domestic animals to search and explore for the treat at the same time orienting the animal, i.e. restricting the entry to the depot thereby allowing exposure of the animal's teeth to brushing by the brush field. The brush field and food elements effectively clean a range of an animal's teeth.

Benefits of the dental station of the invention include the following:a. The supporting structure can include a structure which aids in tending the domestic animal to use the one or more of a plurality of preselected sized and shaped chewable food elements held in a protruding manner to encourage use of at least one set of particular teeth of the domestic animal.b. Encourages domestic animal like canine to graze on shaped chewable food elements on both sides of oral cavity;c. Different chews and locations help to cleans all teeth, i.e., anterior and posterior teeth and all surfaces;d. Physical hindrance created by the configuration of the dental station orients an animal to left and right chewing and inside and outside surfaces of tooth cleaning;e. The dental station can accommodate a plurality of animals at the same time

Interpretation

EMBODIMENTS

Different Instances of Objects

Specific Details

Terminology

In describing the preferred embodiment of the invention illustrated in the drawings, specific terminology will be resorted to for the sake of clarity. However, the invention is not intended to be limited to the specific terms so selected, and it is to be understood that each specific term includes all technical equivalents which operate in a similar manner to accomplish a similar technical purpose. Terms such as “forward”, “rearward”, “radially”, “peripherally”, “upwardly”, “downwardly”, and the like are used as words of convenience to provide reference points and are not to be construed as limiting terms.

Comprising and Including

Any one of the terms: including or which includes or that includes as used herein is also an open term that also means including at least the elements/features that follow the term, but not excluding others. Thus, including is synonymous with and means comprising.

Scope of Invention

INDUSTRIAL APPLICABILITY

It is apparent from the above, that the arrangements described are applicable to a dental device for aiding dental hygiene of domestic pets.