Surgery – Diagnostic testing – Measuring or detecting nonradioactive constituent of body...
Reexamination Certificate
1999-12-22
2001-02-13
O'Connor, Cary (Department: 3736)
Surgery
Diagnostic testing
Measuring or detecting nonradioactive constituent of body...
C600S345000, C422S051000, C422S051000, C356S421000, C435S012000
Reexamination Certificate
active
06186946
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a urinalysis stick for animals which makes it possible for an owner of animals to easily examine the pH, protein, glucose, occult blood and the like in the urine of animals such as dog, cat and the like by himself/herself.
2. Description of the Related Art
A person can voluntarily collect his/her urine in a container such as a paper cup or the like. On the other hand, a dog or a cat will not discharge urine even if an owner orders it. Therefore, the owner has to wait until the animal shows a sign of urination, and collect urine rapidly in an instant of urination. In the case of a male dog which urinates outside by raising his one hind leg, it is possible to receive urine by inserting a paper cup in the crotch region. A female dog, however, squats to discharge urine, therefore, there is only a small gap between the ground, and it is not possible to insert a container for collecting urine in the crotch region. Similarly, both male and female cats trained to discharge in a pet toilet bowl in a room squat to discharge urine, therefore, it is not possible to collect urine by inserting a container in the crotch region.
Accordingly, the present inventor considered direct examination of urine instead of collecting urine. That is to say, a urinalysis stick for human urine make use of the animal urinalysis. In this manner, it should be possible to examine fresh urine promptly on the spot, by inserting the urinalysis stick in the crotch region of not only male dogs but also female dogs and cats.
On the actual trial, however, it was found that the commercially available urinalysis stick for a person was inconvenient unexpectedly. That is to say, the urinalysis stick for a person is separated a color sample showing the discoloration stage for judging the examination result from the stick. For instance, the color sample is only printed on the outside of a container for receiving the stick or on the outside of the package for receiving the container. Therefore, if an owner wants to examine the urine during a walk of a dog, he/she has to bring the urinalysis stick held in the container, or bring the color sample by tearing off from the package. Moreover, if the owner tries to receive the urinalysis stick wet by urine in a bag for droppings carried with him/her, the bag may be punctured by the end or rear end of the stick. In this case, clearing becomes a troublesome job.
OBJECTS AND SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a urinalysis stick for animals which makes it possible for the owner to carry only one urinalysis stick when he/she takes out a dog outside or waits a cat going on the toilet bowl to examine urine.
The urinalysis stick for animals of the present invention comprises a coloring portion disposed a chemical reaction agent at an end, a judging portion disposed a color sample showing the discoloration stage at a rear end, and a half cut portion where the stick can be torn in two or a half fold portion where the stick can be folded in half in the middle of the stick.
In the coloring portion, a chemical reaction agent such as a coloring reagent is arranged by application, printing or impregnation or adhering a test paper. The coloring reagent to be used is not particularly limited, but for example, as for the pH examination, an indicator obtained by mixing methyl red and bromine thymol blue, having a coloration range of from pH 5 to 8 is preferable. Moreover, as for the protein examination, a protein reaction reagent composed mainly of tetrabromine phenol blue is preferable. Furthermore, as for glucose examination, a sugar reaction reagent composed mainly of glucose oxidase and peroxidase, or diaminofluorene dihydrochloride is preferable. Furthermore, as for examination of occult blood, cumene peroxyhydrate or tetramethylbenzine is preferable. According to the purpose of the examination, hold several kind urinalysis sticks for animals in piles in one hand, and bring them into contact with urine in such a manner that the coloring portion of each stick spread in a fan shape crosses the urine line during urination. The contact time with urine may be a moment. Moreover, in the above judging portion, a color sample showing the discoloration stage may be printed, or a color sample printed in color on a separate white paper may be adhered on the rear end of the stick.
After the coloring portion at the end of the stick has been brought into contact with the urine line during urination, the stick is torn in two at the half cut portion or the stick is folded at the half fold portion, to thereby place the judging portion provided at the rear end by the side of the coloring portion. In this manner, the color of the coloring portion colored or discolored due to the contact with fresh urine can be compared to the color sample in the judging portion placed side by side at one glance. Therefore, the examination result can be judged immediately on the spot.
The urinalysis stick for animals of the present invention has a size capable of being held with fingers, therefore it can be put in a pocket or the like and carried for a walk of a dog. Moreover, after examination, it can be cut into half or folded in two to put into a plastic bag or the like for receiving droppings of the dog, hence there is no possibility of breaking through the bag by the end of the stick. Therefore, this bag can be brought back home and thrown out as the kitchen refuse, and can be cleared easily. Similarly, it can be used for the pet toilet bowl for a cat in the room. It is desirable to produce the urinalysis stick for animals of the present invention from woods, bamboo or cardboard, so that it can be disposed of by burning as the kitchen refuse together with the contaminated paper, sand and feces. It is also desired to use cheap recycled papers instead of expensive cardboard, because it is thrown away after single use.
REFERENCES:
patent: 4523852 (1985-06-01), Bauer
patent: 5137692 (1992-08-01), Fritz
patent: 5160979 (1992-11-01), Ota et al.
patent: 5160980 (1992-11-01), Herpichboehm et al.
patent: 5183742 (1993-02-01), Omoto et al.
Natnithithadha Nevin
O'Connor Cary
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