JP2006246944A - Intravaginal indwelling device for livestock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intravaginal indwelling device for livestock which is indwelled inside the vagina of the livestock over a long period of time. <P>SOLUTION: This intravaginal indwelling device is provided with: a thin and long cylindrical container capable of passing through the vaginal path of the livestock; and a wing part composed of a plurality of metallic wires in an annular shape arranged in both end areas in the longitudinal direction of the cylindrical container and capable of being arranged so as to be extended outward from the longitudinal direction axis of the cylindrical container after being bent so as to pass through the vaginal path of the livestock and inserted into the vagina. The wing part is in the annular shape, appropriate mooring force is obtained, and excessive stimulation to the vaginal wall is suppressed by appropriate deformation by the movement of the vaginal wall. Since the vaginal wall is not damaged, the generation of vaginitis is prevented as well. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an intravaginal indwelling device that is retained in the vagina of livestock for a long period of time.

  As a technique related to the vaginal indwelling device for livestock, for example, a temperature sensor for informing the delivery of cattle and an intravaginal indwelling device that is placed in the vagina and releases the estrous cycle synchronizer have been proposed (for example, patent application) Reference 1 and Patent application reference 2).

JP 7-313537

Special table 2004-522528 (P2004-522528A)

  A veterinary indwelling device for livestock is equipped with a sensor attached to the indwelling device to monitor the biological information of the livestock and perform feed management, early detection of disease, estrus detection, delivery prediction, etc., and release an estrous cycle synchronizer. Although useful as a device to synchronize estrus, it is difficult to prevent both inadvertent removal of the vaginal indwelling device and the occurrence of vaginitis with these techniques, and continuous placement for several days is the limit . For example, a temperature sensor described in Patent Document 1 having a fixed mooring portion made of an elastic thin plate spreading in a skirt shape, and a patent having an open / close mooring portion that can be deformed into a T shape or a Y shape using the elastic force of resin. None of the vaginal retention devices described in Document 2 has a mooring period of about 5 days at the longest and is not intended for long-term mooring. Does not have.

Even though these can increase the outer diameter and length of the mooring part or increase the contact area with the vagina wall, it is possible to prevent the indwelling device from falling out of the vagina, It is impossible to prevent the occurrence of vaginitis due to excessive stimulation of the vagina wall or obstruction of the discharge of body fluid from the vagina outside the vagina. Therefore, although it can be placed in the vagina in the short term, it is difficult to place it in the vagina of the livestock for a long time without impairing the health of the livestock.

An object of the present invention is to provide a vaginal indwelling device for livestock that solves the above-mentioned problems, and the vaginal indwelling device for livestock of the present invention is an elongated cylindrical container that can pass through the vaginal tract of livestock. And are arranged in both end regions in the longitudinal direction of the cylindrical container, bent so as to pass through the vaginal tract of livestock, and inserted into the vagina so as to extend outward from the longitudinal axis of the cylindrical container. And a wing portion made of a plurality of annular metal wires that can be arranged.
In such a vaginal indwelling device for livestock, the wings are deployed as shown in FIG. 4 (a) in the natural state, but can be passed through the vaginal tract of livestock by bending the wings when inserted. In this state, after the intravaginal indwelling device is inserted into the vagina at the back of the vaginal tract, its wings expand and come into contact with the vagina wall to be anchored in the vagina.
Therefore, according to the veterinary indwelling apparatus for livestock of the present invention, the wing portion has an annular shape and can be suppressed by excessively irritating to the vagina wall by being appropriately deformed by the movement of the vagina wall. Because it does not damage the vagina wall, it can prevent the occurrence of vaginitis. Also, because the wings are arranged at both ends of the cylindrical container, when deployed in the vagina, the cylindrical container floats in the air without contacting the vagina wall, and the wings are made of metal wire, Since the passage can be surely secured without physically blocking the natural discharge of bodily fluids, it is possible to prevent the occurrence of vaginitis due to the stay of bodily bodily fluids. It is important that the vaginal wall is always moistened by body fluids in the vagina, and that germs and waste products are washed away by the discharge of the body fluids.The smaller the contact area between the intravaginal indwelling device and the vagina wall, the more It is possible to make contact with body fluids and to allow natural discharge of body fluids. Moreover, according to the veterinary vaginal indwelling apparatus for livestock of the present invention, it is possible to easily adjust the mooring force by adjusting the number of wings and the wire diameter, so only one type or only a few types, An appropriate mooring force can be obtained according to changes in the vaginal pressure due to individual differences in vagina size and anger.
During vaginal placement, the veterinary veterinary placement device of the present invention may be coated to minimize the physiological impact on material integrity.

In the present invention, the metal wire of the wing portion can be made into a shape memory alloy having superelastic characteristics. A shape memory alloy can be easily deformed from its original shape to a new shape when cooled to below a temperature at which transformation from the austenite phase to the martensite phase occurs. The temperature at which transformation begins is usually called M _s, and the temperature at which transformation ends is called M _f . The deformed alloy as is when warmed to a temperature A _s to begin returning to the austenitic phase begins to return to its original shape. The temperature at which the transformation process to the austenite phase, that is, the shape recovery process is completed is called _Af . Many alloys exhibiting a shape memory effect transform into a stress-induced martensite phase when an external force is applied to the austenite phase at a temperature of _Af or higher, and immediately return to the original austenite phase by removing the external force. It shows elasticity like this. For this reason, by using the shape memory alloy showing superelastic characteristics as the wing part of the vaginal indwelling device for livestock of the present invention, the wing part can obtain an appropriate mooring force due to the deformation recovery force due to superelasticity, It does not irritate the vagina wall excessively and can prevent vaginitis from being moored for a long time. Moreover, since it does not cause plastic deformation, it can be used repeatedly.

Furthermore, by using a nickel-titanium alloy as the shape memory alloy used for the wing, it is easy to set the transformation end temperature _Af from the martensite phase to the austenite phase in the vicinity of the body temperature. For example, when a nickel-titanium alloy having a nickel concentration of 56 wt% is heat-treated at 480 ° C., the transformation end temperature _Af from the martensite phase to the austenite phase can be increased from 30 ° C. to 35 ° C. Furthermore, since the biocompatibility is very good, even if it is anchored in the vagina for a long time, there is no physiological effect of the material, and the occurrence of vaginitis can be prevented.

If the transformation end temperature M _f from the austenite phase to the martensite phase is from 0 ° C. to 25 ° C. and the transformation end temperature A _f from the martensite phase to the austenite phase is from 30 ° C. to 35 ° C., The vaginal indwelling device for insertion into the vagina is remarkably improved, and the same effect as described above can be obtained while preventing the vagina wall from being damaged during insertion. In other words, the veterinary indwelling device for domestic animals, in which the shape of the wings extends outward from the longitudinal axis of the cylindrical container at a temperature of 30 ° C. to 35 ° C. or more, is inserted into the vaginal tract If the wing is bent to allow passage through the vagina after adjusting to room temperature or a temperature below room temperature (0 ° C to 25 ° C), the wing may plastically deform and maintain its state. After the veterinary indwelling device for livestock in that state is inserted into the vagina, the wings will rise from 30 ° C to 35 ° C or more due to the body temperature of the livestock, so that it will be outward from the longitudinal axis of the cylindrical container. The wings expand so as to extend, become superelastic, and are stably anchored in the vagina.

In the veterinary indwelling apparatus for livestock of the present invention, a transmitting apparatus that is mounted inside the cylindrical container and communicates with a signal receiving apparatus outside the livestock body, and the vagina inside or outside the cylindrical container. It is possible to use it as a vaginal indwelling sensor by including a detection unit that is disposed inside and detects a predetermined type of state and sends the detection result to the transmitter.
Thereby, the intravaginal indwelling device is disposed and extends in the vaginal tract, the transmitting device is mounted in the cylindrical container, communicates with the signal receiving device outside the livestock body, and the detection unit is It is placed in the vagina inside or outside the cylindrical container to detect certain types of conditions such as the temperature in the vagina, the acidity (pH) of body fluid in the vagina, and the electrical conductivity of the body fluid. The detection result is sent to the transmission device.
For example, it is possible to detect biological information in the vagina without harming the health of livestock over a long period of one month or longer, and monitor the detection result with a system such as shown in FIG. Management such as early detection, estrus detection, and delivery prediction is possible.

  Furthermore, in the present invention, the wing part can contact the vagina wall or the mucous fluid in the vagina as a conductive electrode that detects the predetermined type of state and sends the detection result to the signal transmission device. Because the contact state with the vagina wall and the body fluid in the vagina is stable, the condition data of a predetermined type such as the temperature in the vagina, the acidity (pH) of the body fluid in the vagina, the conductivity of the body fluid is stabilized Can be detected.

  Further, the cylindrical container can be impregnated and / or stuck with a physiologically effective drug. For example, indwelling an intravaginal indwelling device in which a luteinizing hormone agent is impregnated in a cylindrical container is useful for synchronizing the estrus of livestock. For example, currently available intravaginal insertion devices such as CIDR (registered trademark, Pharmacia Animal Health, USA) can be used for vaginitis and vaginal mucus turbidity and leakage. Can prevent the occurrence of vaginitis due to the indwelling of the device in the vagina.

The present invention relates to an indwelling device that is retained in the vagina of a domestic animal, and is attached to an elongated cylindrical container that can pass through the vaginal tract of the domestic animal, and both end regions in the longitudinal direction of the cylindrical container. And a wing portion comprising a plurality of annular metal wires that are bent to be able to pass through and inserted into the vagina and extend outward from the longitudinal axis of the cylindrical container. It is characterized by that.
The present invention is characterized in that in the vaginal indwelling device for livestock, the wing portion is made of a shape memory alloy having superelastic characteristics.
In the vaginal indwelling apparatus for livestock, the present invention is characterized in that the shape memory alloy is a nickel-titanium alloy.
The present invention relates to an indwelling device retained in the vagina of a domestic animal, an elongated cylindrical container that can pass through the vaginal tract of the domestic animal, and a signal receiver that is mounted inside the cylindrical container and disposed outside the domestic body of the domestic animal. A signal transmission device that transmits a signal to the device, a state detection unit that detects a predetermined type of state such as a temperature in the vagina of the livestock, and a detection result that is transmitted to the signal transmission device; and a longitudinal direction of the cylindrical container An annular shape that is attached to both end regions in the direction and is arranged to extend outward from the longitudinal axis of the cylindrical container after being bent and folded so as to pass through the vaginal tract of the livestock and inserted into the vagina And a wing portion made of a plurality of metal wires.
In the vaginal indwelling device for livestock, the present invention provides a state detection unit that detects a predetermined type of state such as the temperature in the vagina of the livestock and transmits the detection result to the signal transmission device. It is characterized by being arranged in.
In the vaginal indwelling device for livestock, the present invention provides a state detection unit that detects a predetermined type of state such as the temperature in the vagina of the livestock and transmits the detection result to the signal transmission device. It is connected to the signal transmission device arranged in the lead wire, and is arranged in the vagina outside the cylindrical container.
In the vaginal indwelling device for livestock, the present invention provides a state detection unit that detects a predetermined type of state such as the temperature in the vagina of the livestock and transmits the detection result to the signal transmission device. In addition, a state detection unit that detects a predetermined type of state such as a temperature in the vagina of the domestic animal and transmits the detection result to the signal transmission device is disposed in the cylindrical container. It is connected to a signal transmission device that is connected by a lead wire, and is disposed in the vagina outside the cylindrical container.
The present invention relates to an indwelling device that is retained in the vagina of a domestic animal, and is attached to an elongated cylindrical container that can pass through the vaginal tract of the domestic animal, and both end regions in the longitudinal direction of the cylindrical container. A wing portion comprising a plurality of annular metal wires that can be arranged to extend outward from a longitudinal axis of the cylindrical container after being bent and folded so as to be able to pass through, and inserted into the vagina; And a physiologically effective drug to be affixed to the container.
The indwelling device to be retained in the vagina of livestock, the present invention is attached to an elongated, impregnated cylindrical container that can pass through the vaginal tract of the livestock, and both end regions in the longitudinal direction of the cylindrical container, Wings made of a plurality of annular metal wires that are bent and folded so as to pass through the vaginal tract of the domestic animal and inserted into the vagina so as to extend outward from the longitudinal axis of the cylindrical container And a physiologically effective drug to be impregnated in the impregnated cylindrical container.
The present invention relates to an indwelling device that is retained in the vagina of a domestic animal, and is attached to an elongated cylindrical container that can pass through the vaginal tract of the domestic animal, and both end regions in the longitudinal direction of the cylindrical container. A conductive electrode wing portion comprising a plurality of annular metal wires that are bent so as to pass through and inserted into the vagina and then extend outward from the longitudinal axis of the cylindrical container; A state detecting unit for detecting a predetermined type of state such as a temperature in the vagina of the livestock by the conductive electrode wing part in contact with the vaginal wall or mucous in the vagina, and transmitting the detection result to the signal transmission device; And a signal transmission device that is mounted inside the cylindrical container and transmits a signal to a signal reception device disposed outside the livestock.
The present invention relates to an indwelling device that is retained in the vagina of a domestic animal, and is attached to an elongated cylindrical container that can pass through the vaginal tract of the domestic animal, and both end regions in the longitudinal direction of the cylindrical container. Wings comprising conductive electrodes of a plurality of annular metal wires that can be placed so as to extend outward from the longitudinal axis of the cylindrical container after being bent and folded so as to pass through the vagina And a state detection unit that detects a predetermined type of state such as a temperature in the vagina of the domestic animal by the conductive electrode wing portion that is in contact with the vagina wall or vaginal mucus, and transmits the detection result to the signal transmission device A signal transmitting device that is mounted inside the cylindrical container and transmits a signal to a signal receiving device disposed outside the livestock body, and a physiologically effective drug that is attached to the cylindrical container. It is characterized by.
The indwelling device to be retained in the vagina of livestock, the present invention is attached to an elongated, impregnated cylindrical container that can pass through the vaginal tract of the livestock, and both end regions in the longitudinal direction of the cylindrical container, Conductivity of a plurality of annular metal wires that can be arranged to extend outward from the longitudinal axis of the cylindrical container after being bent and folded so as to pass through the vaginal tract of the livestock and inserted into the vagina A predetermined kind of state such as a temperature in the vagina of the domestic animal is detected by the conductive electrode wing portion that is in contact with the vagina wall or mucous fluid in the vagina, and the detection result is sent to the signal transmission device. A state detector for transmission;
A signal transmitting device that is mounted inside the cylindrical container and transmits a signal to a signal receiving device disposed outside the body of the livestock, and a physiologically effective drug that impregnates the impregnable cylindrical container It is characterized by comprising.
The present invention relates to a method for managing livestock, and is an indwelling device that is retained in the vagina of livestock, and is an elongated cylindrical container that can pass through the vaginal tract of the livestock, and is mounted inside the tubular container, A signal transmitting device for transmitting a signal to a signal receiving device disposed outside the body, and a predetermined type of state such as a temperature in the vagina of the livestock, and transmitting the detection result to the signal transmitting device. A state detection unit is attached to both end regions of the cylindrical container in the longitudinal direction, is bent and folded so as to pass through the vaginal tract of the livestock, and is inserted into the vagina, and then removed from the longitudinal axis of the cylindrical container. A veterinary veterinary indwelling device for livestock comprising a plurality of annular metal wire wings that can be arranged to extend toward the direction, and detecting a predetermined type of condition such as the temperature in the vagina of the livestock, The detection result is transmitted to the signal transmission device, from the signal transmission device Receiving a signal on livestock vitro, and detecting the biological information in the vagina.
The present invention relates to a method for managing livestock, and is an indwelling device that is retained in the vagina of livestock, and is an elongated cylindrical container that can pass through the vaginal tract of the livestock, and is mounted inside the tubular container, A signal transmitting device for transmitting a signal to a signal receiving device disposed outside the body, and a predetermined type of state such as a temperature in the vagina of the livestock, and transmitting the detection result to the signal transmitting device. A state detection unit is attached to both end regions of the cylindrical container in the longitudinal direction, is bent and folded so as to pass through the vaginal tract of the livestock, and is inserted into the vagina, and then removed from the longitudinal axis of the cylindrical container. A veterinary veterinary indwelling device comprising a plurality of annular metal wire conductive electrodes which can be arranged to extend in the direction, and comprising the plurality of annular metal wire conductive electrodes A certain type of condition such as the temperature in the vagina of the domestic animal by the wings Detects and transmits the detection result to the signal transmission apparatus, a signal from the signal transmitter received by the livestock vitro, and detecting the biological information in the vagina.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 (a) and 1 (b), four wings 1 on one side made of stainless steel of the intravaginal indwelling device for cattle of the first embodiment of the intravaginal indwelling device for livestock of the present invention are cylindrical. A state in which the cylindrical container 2 is bent from both end regions 3 and the wing part 1 are arranged so as to extend outward from the longitudinal axis of the cylindrical container 2. 4 (a) and 4 (b) show the appearance of the in-vaginal vaginal indwelling device of the first embodiment in a state where the wing portion 1 is arranged to extend outward from the longitudinal axis of the cylindrical container 2. FIG. 4 is a perspective view and an end view seen from the direction of arrow P in the figure, and as shown in FIG. 4 (c), the wing part 1 bends the appearance of the first embodiment of the vaginal indwelling apparatus for cows. It is folded.

  The cylindrical container in the first embodiment has a diameter of 18 mm, a length in the longitudinal direction of 100 mm, and both ends are chamfered. Stainless steel wire with a diameter of 0.8 mm was used for wing part 1 and the length of one wing part in the major axis direction was adjusted to 35 mm.

  The in-vaginal indwelling device for cattle of this first embodiment is kept in the vagina of cattle as livestock, and has a predetermined kind of state such as the temperature in the vagina, the acidity (pH) of the body fluid, and the conductivity. Detecting and outputting the detected state to the outside of the cow's body, as shown in FIGS. 1 (a) and 4 (c), a wing part 1 composed of four stainless steel wires on one side Is placed in both end regions 3 in the longitudinal direction of the cylindrical container and inserted into the back of the vagina by a bent shape so that it can pass through the vagina of the cow, FIG. 1 (b) and FIG. 4 (a), ( As shown in b), the wing part 1 is placed in the vagina by taking a shape arranged to extend outward from the longitudinal axis of the cylindrical container 2. The signal transmission device 4 that communicates with the signal receiving device outside the livestock of the livestock inside the cylindrical container 2, and the detection result of a predetermined kind of state such as the temperature in the vagina, the acidity (pH) and conductivity of the body fluid The state detection unit 5c for sending the electrical signal to the signal transmission device 4 is provided.

  Further, the in-vaginal indwelling apparatus for cattle according to the first embodiment is operated by feeding power from the battery 6 accommodated in the cylindrical container 2, and as shown in FIG. connect. In the first embodiment, a temperature sensor is arranged in the state detection unit 5c, detects the body temperature in the vagina, wirelessly communicates with a signal receiving device outside the cow's body, the obtained data is judged by the data judgment unit, The estrus time is determined and the health status is determined and displayed on a display unit such as a personal computer or a mobile phone.

According to the cow intravaginal indwelling device of the first embodiment, the wings 1 made of four stainless steel wires on one side are anchored in the vagina by forming an annular shape, so that the inside of the vagina is not damaged, Because the elastic force of the wings resists the force that the indwelling device is to be discharged in the outward direction of the vagina, a large mooring force sufficient to prevent the indwelling device from accidentally falling out of the vagina is obtained. be able to.
By adjusting the wire diameter, number of sheets, or size of the wing portion 1, a large mooring force can always be obtained with only one type or a few types according to individual differences in cattle.
Further, according to the cow intravaginal indwelling device of the first embodiment, since the wing part 1 is made of stainless steel, it is caused by the stay of the body fluid in the vagina without physically blocking the natural discharge of the body fluid in the vagina. The occurrence of tendonitis can also be prevented.

2 (a) and 2 (b) is a bovine vaginal indwelling device according to a second embodiment, which is disposed in a cylindrical container 2 to detect a predetermined type of condition in the vagina, and the electrical result of the detection result. Instead of the state detection unit 5c that sends a signal to the signal transmission device 4, a predetermined or different from or identical to the state detection unit 5c, such as temperature, body fluid acidity (pH), conductivity, etc., disposed in the vagina An external state detection unit 5a that detects the state of the type and sends the detection result to the signal transmission device 4 in the cylindrical container 2 is provided.
Here, the lead wire 5b that connects the external detection unit 5a to the signal transmission device 4 in the cylindrical container 2 is in a state in which the wing part 1 is arranged so as to extend outward from the longitudinal axis of the cylindrical container 2 However, the external detector 5a has such a length that it can contact the bottom wall of the vagina, and the external detector 5a hangs under its own weight regardless of the posture of the cow, and is applied to body fluids such as the vestibule of the vagina. It has enough weight to touch.
According to the cow intravaginal indwelling device of the second embodiment, in addition to obtaining the same effects as those of the first embodiment, the external state detection unit 5a directly detects the state in the vagina. Therefore, the change in the state can be detected with higher sensitivity.

A cow intravaginal indwelling device according to a third embodiment shown in FIGS. 3 (a) and 3 (b) is arranged in a cylindrical container 2 to detect a predetermined kind of state in the vagina, and the electrical result of the detection result. A state detection unit 5c that sends a signal to the signal transmission device 4, and a predetermined type of state that is different from or identical to the state detection unit 5c, such as temperature, acidity (pH), conductivity, etc. It includes both an external state detection unit 5a that detects and sends the detection result to the signal transmission device 4 in the cylindrical container 2.
Here again, the lead wire 5b connecting the external state detection unit 5a to the signal transmission device 4 in the cylindrical container 2 has a shape in which the wing part 1 is arranged to extend outward from the longitudinal axis of the cylindrical container 2. The external state detection unit 5a is long enough to be able to contact the bottom wall in the vagina even in the state, and the external state detection unit 5a hangs under its own weight regardless of the cow's posture, etc. It is heavy enough to come into contact with body fluids.
According to the cow intravaginal indwelling device of the third embodiment, in addition to obtaining the same operational effects as those of the first embodiment, the external state detection unit 5a which is the operational effects of the second embodiment is provided. Since the state in the vagina is directly detected, a synergistic effect is obtained such that the change in the state can be detected with higher sensitivity.

In still another embodiment of the bovine vaginal indwelling apparatus, the wing part 1 is made of a nickel-titanium alloy and made of a shape memory alloy exhibiting superelastic characteristics. According to the intravaginal indwelling apparatus for cows of this embodiment, as shown in FIG. 5, the wing part 1 has an angle with respect to the distal end of each wing from the longitudinal axis of the cylindrical container in the range of 0 ° C. to 180 ° C. It is elastically deformable and can resist bending. Further, since the biocompatibility and superelasticity of the wing part 1 are superior to those of stainless steel wires, the effect of preventing vaginitis over a long period of time is higher, and plastic deformation is less likely to occur, so that it can be used repeatedly.
Further, in the above-described embodiment, the metal wire forming the wing portion can be constituted by a single wire as shown in FIG.

FIG. 6 is a perspective view showing the external appearance of a bovine intravaginal indwelling device according to another embodiment of the present invention. In the cow's intravaginal indwelling device of this embodiment, the wing portion 7 is in contact with the vagina wall or the mucous fluid in the vagina as a conductive electrode, and the vagina temperature, body fluid acidity (pH), electrical conductivity, etc. It becomes an external state detection unit that detects the type of state and sends the detection result to the signal transmission device 4. In one example, the conductivity was detected between the electrode pair (AH in FIG. 6) of the wing portion 7 located farthest away. By this detection method, a non-local state in the vagina can be detected. In still another embodiment, the electrode pair of the wing part 7 (A-D in FIG. 6) located in the vicinity of the vaginal opening and the electrode pair of the wing part 7 located in the back of the vagina (F-G in FIG. 6) are the same. The state (conductivity) was detected. By this detection method, it is possible to grasp the data distribution in the vagina, and the data can be rounded by averaging the obtained data. This method of rounding data is different from the moving average processing of single data, and it is possible to capture a sudden state change seen at the time of estrus more reliably.
According to the cow's intravaginal indwelling device of this embodiment, in addition to the same effects as the embodiments described above, the wing portion 1 having good contact with the vagina wall and the mucus in the vagina directly controls the state in the vagina. Therefore, it is possible to detect the change in the state of the vagina with high sensitivity and accurately and stably.

  In addition to the above-described embodiment, a single state in the vagina may be detected or a plurality of states in the vagina may be detected according to the number of wing parts 7 and the circuit.

  As shown in FIG. 7, the intravaginal indwelling apparatus for livestock of the present invention is placed in the vagina of a cow.

Progesterone (lutein hormone) is continuously administered to cattle, and the release of LH (luteinizing hormone) and FSH (follicle stimulating hormone) from the anterior pituitary gland is suppressed. The follicular development is suppressed, the developing follicle regresses, and the estrous cycle stops. When the administration is stopped, the suppression of the release of LH and FSH from the anterior pituitary is released, and as a result, follicular development is resumed. And estrus develops. Examples of drugs that continuously administer luteinizing hormone to cattle include CIDR (inserted into the vagina).
In another embodiment, a nylon tubular container is coated with a silicone elastomer impregnated with 1.9 g of progesterone (lutein hormone), and a vagina using a shape memory alloy made of nickel-titanium alloy showing superelastic characteristics as a wing part The indwelling device was left in the cow for 15 days and then removed.
In 30 cows, estrus developed within 2-4 days after removal of the vaginal indwelling device.
Further, during the test period, the indwelling device in the vagina was not dropped, and the occurrence of vaginitis was not observed. When the vaginal indwelling device is used for the purpose of synchronizing estrus in this way, the amount of progesterone is sufficient to suppress the release of LH and FSH from the anterior pituitary, ie, 2 ng / ml. What is necessary is just the quantity kept above.

  Without being limited to this embodiment, the physiologically effective drug may be directly impregnated into the cylindrical container, or the drug filled in the pharmaceutical capsule may be attached to the cylindrical container.

  Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described configuration. For example, the number of the wing portions 1 arranged at one end of the cylindrical container 2 may be two, but the vagina of the domestic animal In order to obtain the effect of reducing the contact between the wall and the cylindrical container 1, three or more are preferable.

  The wing part of the vaginal indwelling apparatus for livestock of the present invention can obtain an appropriate mooring force due to the deformation recovery force due to superelasticity, and does not excessively irritate the vagina wall. The occurrence of flame can be prevented. In addition, since plastic deformation does not occur, there is an excellent effect that it can be used repeatedly, and it can be used in this field as a vaginal indwelling apparatus for livestock.

(A), (b) seems to extend outward from the bent state of the wing part of the vaginal indwelling apparatus for livestock of the first embodiment of the present invention and the longitudinal axis of the cylindrical container 2. It is sectional drawing which shows the respectively arranged state. (A), (b) is the state in which the wing | blade part of the vaginal indwelling apparatus for domestic animals of 2nd Example of this invention which provided the external state detection part was bent, and the longitudinal direction axis line of the cylindrical container 2 It is sectional drawing which each shows the state arrange | positioned so that it may extend outward from. (A), (b) extends outwardly from the bent state of the wing part of the vaginal indwelling apparatus for livestock of the third embodiment of the present invention and from the longitudinal axis of the cylindrical container 2. It is sectional drawing which shows the respectively arranged state. (A), (b), (c) is a perspective view showing the appearance of the veterinary indwelling apparatus for livestock of the first embodiment in FIGS. 1 (a) and 1 (b) and an arrow P in the figure The end view seen from the direction and (c) are perspective views showing the appearance of the in-vaginal indwelling sensor for cows of the first embodiment in the state of FIG. 1 (a). These are explanatory drawings which show that the wing | blade part 1 of 1st Example deform | transforms elastically in the range with respect to the distal end of each wing | blade from the longitudinal direction axis line of the said cylindrical container in the range of 0 to 180 degreeC. These are perspective views which show the external appearance of the electroconductive electrode wing | blade part of the external state detection part of the cattle vaginal indwelling device of the other Example of the veterinary vaginal indwelling device of this invention. It is sectional drawing which shows the state in which the intravaginal indwelling apparatus for livestock which concerns on this invention is detained in the vagina of a cow. It is explanatory drawing of the system which detects and monitors the predetermined state in the vagina using the veterinary indwelling apparatus for livestock which concerns on this invention. It is a figure which shows the shape of the metal wires used for apparatuses, such as the 1st, 2nd and 3rd Example of the vaginal indwelling apparatus for livestock which concern on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wing part 2 Cylindrical container 3 Both ends area | region 4 of a cylindrical container Signal transmission apparatus 5a External state detection part 5b Lead wire 5c Internal state detection part 6 Battery 7 Conductive electrode wing part 8 Rectum 9 Vagina
10 Cattle vaginal indwelling device

Claims (10)

In an indwelling device that is kept in the vagina of livestock,
An elongated cylindrical container capable of passing through the vaginal tract of the livestock;
It is attached to both end regions in the longitudinal direction of the cylindrical container, is bent and folded so as to pass through the vaginal tract of the livestock, and extends outward from the longitudinal axis of the cylindrical container after being inserted into the vagina. A vaginal indwelling apparatus for livestock, comprising: a plurality of annular metal wires that can be arranged as described above.   2. The vaginal indwelling apparatus for livestock according to claim 1, wherein the wing portion is made of a shape memory alloy having superelastic characteristics.   The vaginal indwelling apparatus for livestock according to claim 2, wherein the shape memory alloy is a nickel-titanium alloy. A signal transmission device that is mounted inside the cylindrical container and transmits a signal to a signal reception device disposed outside the livestock,
The livestock according to any one of claims 1 to 3, further comprising: a state detection unit that detects biological information that can be understood from the vagina of the livestock and transmits the detection result to the signal transmission device. Intravaginal indwelling device.   The state detection part which detects the biometric information understood from the vagina of the said domestic animal, and transmits the detection result to the said signal transmitter is arrange | positioned in the said cylindrical container. Intravaginal indwelling device for livestock.   The state detection unit that detects biological information that can be understood from the vagina of the domestic animal and transmits the detection result to the signal transmission device is connected to the signal transmission device arranged in the cylindrical container by a lead wire, The intravaginal indwelling apparatus for livestock according to claim 4, which is disposed in the vagina outside the cylindrical container. The vaginal indwelling apparatus for livestock according to any one of claims 1 to 6, further comprising a physiologically effective drug that is held in a cylindrical container so as to be releasable in the vagina.   The vaginal indwelling apparatus for livestock according to claim 7, wherein the medicine is stuck to and held in the cylindrical container.   The vaginal indwelling apparatus for livestock according to claim 7, wherein the medicine is impregnated and held in the impregnable container.   The wing part includes a conductive electrode part, and the state detection part detects biological information that can be understood from the vagina of the domestic animal by the conductive electrode part that is in contact with the vagina wall or vaginal mucus. The vaginal indwelling apparatus for livestock according to any one of claims 4 to 9, characterized in that the signal is transmitted to the signal transmitting apparatus.

Images