JP4485340B2 - Oxygen therapy device for small animals - Google Patents

Description

  The present invention relates to an oxygen therapy apparatus used for intensive treatment of small animals such as dogs and cats raised as pets.

“Small Animal Clinical”, Vol. 122, VOL. 21 NO. 5, Issued in September 2002, published by “Sansui Shoten Co., Ltd.” P. pp. 353-355 Conventionally, as is clear from Non-Patent Document 1, intensive treatment of small animals such as dogs and cats kept as pets Oxygen therapy devices used to do this are known and are mainly used in veterinary hospitals. The structure is a highly airtight cage having a volume sufficient to accommodate a patient, an oxygen cylinder or oxygen concentrator for supplying oxygen into the cage, and adjusting the atmosphere in the cage. The adjustment mechanism includes a temperature in the cage in a range of 17 to 38 ° C. (at an ambient temperature of 25 ° C.) and a humidity in a range of, for example, 40 to 70% (at an ambient humidity of 20 to 80%). Air conditioning adjustment means, oxygen concentration adjustment means for adjusting the concentration within a range of, for example, 25 to 40% (at the time of supplying 5 liters of oxygen per minute), and CO2 generated by the respiration of the patient, for example, lime carbonate adsorption system Are provided with a CO2 removing means and a power source.

  Thus, in use, a small animal (for example, 10 kg or less) is housed in the cage, and oxygen-containing air is supplied from the oxygen cylinder or oxygen concentrator to the cage to make the cage oxygen-rich. The atmosphere inside the highly airtight cage that changes with the air conditioning means, the oxygen concentration adjusting means, and the CO2 removal means were adjusted to make the atmosphere suitable for oxygen intensive treatment.

  However, according to the conventionally known oxygen therapy apparatus for small animals, the flow rate of the oxygen cylinder or oxygen concentrator, which is an oxygen supply source, is at most a small amount of 3 L / min, and is intended for a highly airtight cage. The atmosphere in the cage is likely to change over time, and as described above, it requires many adjustment means to adjust the atmosphere in the cage to a good state, and thus the overall configuration is complicated and large. In addition, the adjustment operation is troublesome and specialized, and the object to be used was exclusively a veterinary hospital.

  Accordingly, the present invention is directed to an open cage that can release the air in the cage to the outside, and the oxygen concentrator is developed along with the development of an oxygen concentrator that can obtain a large flow rate of, for example, about 10 L / min. By supplying a large amount of oxygen-containing air from the vessel to the cage, the atmosphere inside the cage is always kept in a good state and inexpensive oxygen that can be used even by ordinary pet breeders who do not require adjustment means A therapeutic device is provided.

In order to achieve the above-described object of the present invention, an oxygen therapy device for small animals is composed of an oxygen concentrator equipped with zeolite and a 70-liter capacity cage that accommodates small animals, and the cage has an open area communicating inside and outside. Has a through-hole of 80 cm ² , and oxygen-containing air with an oxygen concentration of 45% is supplied from the oxygen concentrator to the cage at a large volume of 10 L / min so that the pressure in the cage becomes positive. The air in the cage is constantly discharged to the outside through the hole.

  In the above, preferably, the through holes are formed in a plurality, and the plurality of through holes are arranged so as to be scattered in the surface direction.

Furthermore, the cage was made of a transparent material.

As described above, according to the present invention, since an oxygen concentrator supplies a large amount of oxygen-containing air into an open cage having a through hole for releasing the oxygen-containing air to the outside, the air in the cage is quickly converted into oxygen-rich air. Since the air in the cage is always released to the outside through the through hole, there is no room for contaminated outside air to enter the cage, and it is always fresh and oxygen-rich. It can be retained and the deodorizing function of the zeolite works, so that the odor emitted from the manure of the livestock can be eliminated, and even when the supply of oxygen stops due to a power failure etc., the outside air flows back into the cage through the through hole Therefore, it has advantages such as no fear of lack of oxygen.

  Furthermore, the temperature rise in the cage due to heat radiation from the patient is suppressed by the oxygen-containing air released to the outside through the through hole, so that it is always kept at a temperature approximately equal to room temperature. It has a high-efficiency dehumidification function, and the oxygen-containing air supplied into the cage can be obtained at a humidity close to 0, so that the increase in humidity can be suppressed, and the supply flow rate from the oxygen concentrator and the cage are installed. Since the oxygen concentration can be easily adjusted according to the size of the through-holes used, the conventional means for adjusting the room temperature, humidity and oxygen concentration in the cage and troublesome operations can be omitted, making it convenient to use the length. In addition, a small and inexpensive device can be provided, and there is an advantage that an ordinary person raising a pet can easily use it at home.

  Furthermore, according to the invention described in claim 2, it is convenient for the release of carbon dioxide during respiration of the patient, that is, heavy carbon dioxide, and according to the invention described in claim 3, the patient is provided with the inner wall surface of the cage. Even when living in a state where it is in contact with all the holes, there is no fear that all of the through holes will be closed, and the release of air in the cage can be secured, and according to the invention of claim 4, the state in the cage can be sensed. Can do.

  Furthermore, according to the fifth aspect, as a result of several experiments, the most suitable condition can be satisfied as an oxygen therapy device for small animals of 10 kg or less.

  FIG. 1 is an overall perspective view, in which A indicates an oxygen concentrator and B indicates a cage. The cage B has a cage body 1 that is large enough to accommodate a small animal, for example, a width of 30 cm, a height of 45 cm, a depth of 55 cm, and a volume of 70 L. The door 2 closes the front opening, both of which are made of transparent plastic so that the inside can be seen through and made of metal on the periphery of the front opening of the cage body 1 and the inner periphery of the door 2 Frame pieces 3 and 4 are attached to each other. The frame pieces 3 and 4 are connected to each other by a hinge 5 on one side, and the hinge 2 allows the door 2 to be attached to the cage body 1 so as to be opened and closed. A lock mechanism 6 is attached to the other side surface of the frame pieces 3 and 4.

In the lower part of the door 2 and the lower part of the rear surface of the cage body 1, a plurality of small through holes 7 are preferably provided so as to be scattered in the surface direction and symmetrically on the front and rear surfaces. The 11 mm through holes 7 are arranged in a staggered manner within a range of 50 mm and 125 mm from the bottom with a pitch of 25 mm in length and width. ^The case of ² is shown.

  A thermometer 8 and a pipe 9 that receives supply of oxygen-containing air from the oxygen concentrator A are attached to the upper surface of the cage body 1 of the cage B configured as described above. When the humidity in the cage B decreases, a nebulizer connection hole 10 for replenishing steam from the outside is provided in a closed shape.

  As is well known, the oxygen concentrator A is a device that separates nitrogen gas and oxygen gas in the air, eliminates the nitrogen gas, and supplies only high-concentration oxygen gas. There are two types: a method called a “membrane type” that can obtain a relatively low oxygen concentration by applying a molecular membrane, and a “PAS method” equipped with a zeolite that can obtain a high concentration of oxygen. The invention uses the oxygen concentrator developed in this “PAS type” oxygen concentrator and capable of obtaining a large flow rate.

  That is, this oxygen concentrator has an easy oxygen concentration adjustment, a large amount of oxygen-containing air can be released under a constant oxygen concentration, a highly efficient dehumidifying function, and a sterilizing function using a sterile filter. The invention of the present application effectively utilizes the characteristics of the oxygen concentrator described above, and is combined with the open cage B shown above to Is achieved.

Thus, a large amount of oxygen-containing air having a constant oxygen concentration, for example, 45%, is supplied from the oxygen concentrator A through an aseptic filter to the cage B having a volume of, for example, 70 L having an opening area of 80 cm ^2, for example. For example, it is supplied through the pipe 9 at a flow rate of 10 L / min.

  Then, the air in the cage B is quickly exchanged with fresh oxygen-containing air in about 7 minutes to become an oxygen-rich atmosphere, and the oxygen-containing air in the cage B is changed to a positive pressure by making the pressure in the cage B positive. Always discharged from the through hole 7 to the outside (indoor). Therefore, there is no possibility that air contaminated with external germs or the like enters the cage B, and the inside of the cage B is maintained at an oxygen concentration of, for example, 30%, which is optimal for oxygen intensive treatment.

  The air in the cage B whose temperature rises due to heat radiation from the patient is quickly released to the outside from the through hole 7 by the oxygen-containing air supplied from the oxygen concentrator A, and the temperature in the cage B. Was kept approximately the same as room temperature and, according to experiments, remained in the range of + 1.5 ° C. at the maximum. The oxygen concentrator A has a high-efficiency dehumidifying capacity. Therefore, the oxygen-containing air supplied to the cage B is close to humidity 0, and according to experiments, the supply amount of oxygen-containing air is 10 L / min. When the indoor humidity was 52.3%, the humidity in the cage B was 27.3%, and the humidity reduction rate was 48%.

  Further, the odor emitted from the manure of the patient is erased by the deodorizing function by the zeolite, and carbon dioxide gas having a high specific gravity during the respiration of the patient is efficiently released from the through hole 7 provided at the lower position of the cage B.

  Furthermore, according to this example, even when the supply from the oxygen concentrator A is stopped due to a power failure or the like, the outside air is recirculated through the through hole 7 and can be used safely.

  Furthermore, in this example, the plurality of through holes 7 are provided in the cage B so as to be scattered in the plane direction even when the livestock in the cage B lives in a state of being in contact with the inner wall surface of the cage B. All of this is considered so as not to close.

Configuration diagram of the present invention

A. Oxygen concentrator B. Cage 1 Cage body 2 Door 7 Through hole

Claims (3)

Is composed of a cage volume 70L accommodating an oxygen concentrator and a small animal with a zeolite, the cage, and out has a hole opening area is 80 cm ² for communicating, to oxygen cage from said oxygen concentrator A structure in which oxygen containing air with a concentration of 45% is supplied at a large capacity of 10 L / min and the air in the cage is constantly discharged from the hole so that the pressure in the cage becomes positive pressure. An oxygen therapy device for small animals. The oxygen therapy device for small animals according to claim 1 , wherein the through hole is formed in a plurality, and the plurality of through holes are arranged so as to be scattered in a surface direction . The oxygen therapy device for small animals according to claim 1 or 2, wherein the cage is made of a transparent material.

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