JPH0664621U - Livestock egg collection equipment - Google Patents

Abstract

(57) [Summary] [Object] To provide an egg-collecting device for livestock, which can collect eggs from a living body (normal body) using an ultrasonic diagnostic device. [Structure] An ultrasonic probe 1 and an egg-picking needle 12 with a needle tip that can be moved in and out are housed in a protective cylinder 22, and the rear end of the egg-pickup needle 12 is connected to an egg-pickup device 42. The protective tube 22 of the egg collector 2 is integrated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a livestock egg-collecting apparatus that uses an ultrasonic diagnostic apparatus to project ovaries of livestock, mainly cows, and horses, and collects eggs while watching the images.

[0002]

[Technical background]

 Currently, as a method of collecting multiple fertilized eggs, hormones are usually administered to cows to induce superovulation, and reflux fluid is sent into the uterus through the cervical canal to collect ovulated eggs together with the reflux fluid. There is also a method of slaughtering the unfertilized eggs from the ovaries of cattle, horses, etc. by slaughtering them at a slaughterhouse and in vitro culturing them to mature eggs.

[0003]

[Problems to be solved by the device]

 However, in the former case, ovarian reaction is weakened because ovulation is forcibly superovulated by the administration of hormones, etc., and ovulation cannot be induced continuously, and economically effective egg collection cannot be performed. Also, the latter cannot be used to improve high quality cows because the cows cannot be identified.

The present invention has been made in view of the above-mentioned conventional circumstances, and an object of the present invention is to collect an egg directly from a living body (normal body) using an ultrasonic diagnostic apparatus. To provide.

[0005]

[Means for Solving the Problems]

 The technical means taken to achieve the above-mentioned object is, in claim 1, the ultrasonic probe and the needle for allowing the needle tip to move in and out to accommodate the egg-pickup needle in the protective cylinder and to fix the rear end of the egg-pickup needle. The gist is that the protective tube of the egg collection device, which is connected to the egg capturing device, is integrated. In Claim 2, the egg-collecting needle according to Claim 1 is longitudinally cut into a discharge flow path of the reflux liquid and a suction flow path of the reflux liquid, and an intake device supplies the reflux liquid to the discharge flow channel. The gist is that it is composed of a discharge device and a suction device that sucks the reflux liquid from the suction flow path. The gist of claim 3 is that the ultrasonic probe according to claim 1 and the tip of the protective cylinder are arranged at the same or substantially the same position. According to a fourth aspect of the present invention, between the base portion of the protective tube according to the third aspect of the present invention and the egg collecting needle, a hooking / releasing portion that adjusts stepwise the amount of protrusion of the egg collecting needle from the tip end position of the protective tube is configured. The point is. In claim 5, the egg collecting needle of claim 4 is oriented in a direction intersecting at a position with a predetermined interval on an imaginary line extending from the center line of the ultrasonic probe and the tip of the egg collecting needle. And According to a sixth aspect of the present invention, the hooking / releasing portion of the fourth aspect constitutes a rear end portion of the protective tube and has a tubular proximal end portion, a rear end of which is open, a through hole through which an egg collecting needle is passed, and an egg collecting inside the through hole. A needle holder that has a set screw tightly attached to the needle portion and is slidably fitted in the tubular proximal portion, and a side surface of the tubular proximal portion facing the sliding direction of the needle holder from the rear end. Guide slits are provided which are provided so as to communicate with each other and which are provided at appropriate intervals, and which are protruded from the needle holder and guided by the guide slits to elastically engage and disengage from the retainer holes. The gist is that the head diameter of the set screw is the same as or smaller than the width of the guide slit, which is composed of an operation hooking convex portion.

[0006]

[Action]

 The above technical means have the following effects. (Claim 1) After inserting the hand from the rectum to artificially draw the ovary to the vicinity of the innermost part of the vaginal wall, insert the egg-collecting device into the vagina and bring the ultrasonic probe into contact with the vaginal wall. Sound waves are transmitted from the ultrasonic probe in the direction of the ovary, and the ovary with small follicles is captured as an image. While observing the image, the egg collection needle inside the protective tube is operated from the outside to invade the vaginal wall to enter the small follicle formed in the ovary, and the capture device is activated to collect the egg from the tip of the egg collection needle. (Claim 2) In the same manner as in Claim 1, a small follicle of the ovary is captured as an image, and an egg-collecting needle is inserted into the vaginal wall to enter the small follicle, and then a reflux device and a reflux liquid are discharged. The suction device for sucking the vesicles is operated together to suck the small follicles together with the reflux liquid from the suction flow channel together with the reflux generation liquid sent from the discharge flow channel. (Claim 3) The egg collection needle is protected from various bacteria in the vagina. (Claim 4) The egg-picking needle is advanced steadily step by step while preventing it from protruding for a long time. (Claim 5) The separation distance of the ovary attracted to the vicinity of the vaginal wall with the skill of a professional engineer with respect to the vaginal wall, and the distance to the intersection on the extension virtual line between the ultrasonic probe and the needle tip of the egg collection needle. And the amount of protrusion of the needle tip of the egg collection needle that reaches the small follicle formed in the ovary from the protective cylinder is grasped by hand. (Claim 6) The egg collection needle is replaced with the needle holder fitted in the protective cylinder.

[0007]

[Effect of device]

 Since the present invention is configured as described above, it has the following advantages. (Claims 1 and 2) It is possible to provide a novel domestic egg-collecting device for collecting eggs from small follicles formed in the ovary while capturing an image of a living body (normal body) ovary with an ultrasonic diagnostic device. Therefore, unlike the prior method of superovulation, it does not impose a burden on the ovary by administering a chemical solution or the like, and does not impair the health of the living body, and it is possible to efficiently collect eggs while strictly adhering to the constant ovulation cycle of the living body. (Claim 3) The egg-collecting needle protected by a protective tube so as not to come into contact with the inner surface of the vagina when inserted into the vagina is completely isolated from the vagina even during egg collection, so that various bacteria in the vagina adhere to the egg-collecting needle. Also, there is no risk that the germs will enter the needle and will not adversely affect egg collection. (Claim 4) Since the advance is controlled stepwise from the vaginal wall of the egg collecting needle, even if the needle tip cannot be captured as an image, the egg collecting needle needle tip can be moved forward steadily and rapidly. There is no risk of an accident where the egg collection needle moves and breaks through the ovary. (Claim 5) The egg is collected by pulling the ovaries to the vaginal wall up to a distance equal to the predetermined interval, depending on the skill of a professional engineer, because they are oriented so as to intersect at a predetermined interval on the extended virtual line. The forward distance of the needle to reach the ovary (specifically, the small follicle) can be assured, and the tip of the egg collection needle can be reached to the ovary by hand operation without relying on speculation. (Claim 6) Even if the needle tip is worn out and must be replaced, the old egg collection needle is protected by releasing the connection with the take-in device and unfastening the set screw. The needle holder fits inside the handle, you can remove it as it is, you can attach a new egg collecting needle, it is easy to replace the egg collecting needle, and the needle tip of the egg collecting needle is adjusted to the protective tube tip level. Can be reliably set in position.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show an embodiment of claims 1, 3, 4, 5, and 6 (hereinafter referred to as a first embodiment) in a livestock egg collecting apparatus of the present invention, and FIG. 3 shows a livestock egg collecting apparatus of the present invention. An embodiment of claims 2, 3, 4, 5, and 6 (hereinafter referred to as a second embodiment) is shown. First, the first embodiment will be described.

In the first embodiment, reference numeral 1 is an ultrasonic probe, and 2 is an egg collector. The egg collection device 2 communicates with an egg collection needle 12, a protection tube 22 that guides the egg collection needle 12 in and out, a vaginal insert 32 that integrates the egg collection needle 12 and the protection tube 22, and a rear end of the egg collection needle 12. The take-in device 42 is provided with a hooking / releasing part 52 formed between the rear end of the protective cylinder 22 and the egg collecting needle 12.

The ultrasonic probe 1 transmits a high-frequency sound wave into a living body of a domestic animal, detects echoes that are reflected at each boundary interface (epidermal / fat / muscle, etc.) of a tissue and return. It is the ultrasonic transmitter / receiver of a conventionally known ultrasonic diagnostic apparatus that diagnoses a living body with high accuracy and instantly by imaging, and is connected to the ultrasonic diagnostic apparatus main body 100 with a communication code 101. As shown in the figure, the vaginal insert 32 made of synthetic resin is fitted and fixed with its surface exposed to a set portion 32a recessed at the tip thereof.

The egg collecting needle 12 is formed by sharply cutting one end of an elongated hollow thin tubular material such as stainless steel having a hollow inside in a slanting manner, and connecting one end to the rear end portion so that one end can be removed or fastened. It is in communication with the intake device 42 via a flexible communication tube 42a.

The intake device 42 includes a suction pump 42b, two-type egg storage containers 42c and 42c that communicate with the pump 42b via a flexible communication tube 42a, and the egg storage container 42c. It is composed of a connecting pipe 42a having the same property to connect between 42c, and a connecting pipe 42a having a downstream end connected to an upstream egg storage container 42c and an upstream end connected to the egg collecting needle 12. The intake device may be a syringe-like suction mechanism (not shown) that is connected to the rear end of the flexible communication tube 42a and is operated artificially or mechanically for suction.

The protective tube 22 is formed by cutting a desired thin metal tube made of stainless steel or the like having a slightly larger diameter that can slidably guide the egg collection needle 12 into a relatively long shape, and collecting eggs. The needle 12 is slidably accommodated and fixed integrally with the vaginal insert 32, and the tip thereof is arranged at the same or substantially the same level position as the ultrasonic probe 1.

The vaginal insert 32 is formed in a substantially rod shape having an outer shape such that it can be loosely inserted into the vagina, and as shown in the drawing, the ultrasonic probe 1 and the tip of the protective cylinder 22 are at the same or substantially the same level. It is arranged at a position and is fixed integrally. Specifically, it has a grip function part 32b occupying a length of about ⅔ and a lump part 32c which is formed in the same body as the grip function part 32b and occupies the remaining part. A mounting groove 32d is provided on the upper surface of the lump portion 32c over the entire length in the lengthwise direction, and a protective cylinder 22 accommodating the egg collecting needle 12 is fitted and fixed in the mounting groove 32d. Has the setting portion 32a whose center line is oriented in a direction intersecting the virtual extension line of the protective tube 22 and a communication groove 32f communicating with the setting portion 32a. The setting portion 32a has the ultrasonic probe described above. The child 1 is fitted and fixed, and a connecting cord 101 for connecting to the ultrasonic diagnostic apparatus main body 100 is inserted into the communication groove 32f.

The vaginal insert 32 is used when a technician puts his or her hand through the rectum and draws the ovary 300 with a skill until the vaginal wall 20 0 is separated by a predetermined distance from the back end. The angle of inclination of the protective tube 22 with respect to the center line of the ultrasonic probe 1 is slightly set so that the egg collection needle 12 can reach the ovary 300 if the egg collection needle 12 faces the 300 and is advanced by a distance equal to the predetermined interval. I am pointing up. The above-mentioned predetermined interval is about 2 cm in this embodiment, though it varies depending on a slight difference in the inclination angle of the protective cylinder 22 with respect to the ultrasonic probe 1.

The hanging portion 52 includes a tubular hand portion 52a that constitutes the rear end portion of the protection tube 22, and a needle holder 52b that slides in the tubular hand portion 52a and can fix the egg collecting needle 12 freely. , A guide slit 52c provided in the cylindrical proximal portion 52a and having hooking holes 52c-1 opened in a communicating manner at appropriate intervals, and a guide slit 52c protruding from the needle holder 52b. It is composed of an operating latching convex portion 52d which is guided and elastically latches and disengages from the latching hole 52c-1.

The tubular proximal portion 52a is in a tubular shape communicating with the protective barrel 22 and having an open rear end, and is fixed to the proximal end of the grip function portion 32b of the vaginal insert 32, that is, the proximal portion.

The needle holder 52b has a deformed hexagonal shape and is formed in such a size that each apex engages with the inner peripheral surface of the tubular hand portion 52a, and a through hole through which the egg collecting needle 12 is inserted in the longitudinal direction. 52b-1 is opened and fixed to the egg collecting needle 12 with a set screw 52b-2 which is tightly connected to the egg collecting needle 12 portion inside the through hole 52b-1 and the tight connection with the set screw 52b-2 is released. By doing so, the egg collection needle 12 can be pulled out.

The guide slit 52c is formed in the lengthwise direction of the tubular proximal portion 52a, that is, in the sliding direction of the needle holder 52b, from the rear end of the tubular proximal portion 52a over substantially the entire length in the longitudinal direction. The hooking holes 52c-1 are opened in a communicating manner at appropriate intervals.

The operation latching convex portion 52d is the upper half of the surface layer portion of the needle holder 52b facing the guide slit 52c, and the rear end of the needle holder 52b is integrated with the main body portion 52b-3. It is composed of an elastically repelling piece 52d-1 which urges in the direction of 52c, and at the tip end portion of the elastically repelling piece 52d-1, an engaging base portion 52d-2 and an engaging base portion 52d thereof which have substantially the same diameter as the engaging hole 52c-1. -2, a guide shaft portion 52d-3 having a diameter smaller than the width of the guide slit 52c and a large diameter operation knob 52d-4 continuously provided on the guide shaft portion 52d-3 are integrally formed. With the operation knob 52d-4, the guide shaft 52d-3 is moved with the guide slit 52c as a guide in a state where the elastic repelling piece 52d-1 is artificially pushed down, and the upper or lower latch hole 52c is provided. -1 When the artificial pushing down is released, the engaging base 52d-2 is engaged with the retaining hole 52c-1 and the stage is reached. It is designed so that the hooked state in is retained. By the way, in the drawing, the tip of the egg collecting needle 12 is aligned with the tip of the protective tube 22 when the operation latching convex portion 52d is elastically engaged with the latching hole 52c-1 at the rearmost end. .

The diameter of the head of the set screw 52b-2 is set to be equal to or slightly smaller than the width of the guide slit 52c so that the operation hooking protrusion 52d is hooked to the desired hooking hole 52c-1. The egg collecting needle 12 can be pulled out from the needle holder 52b as it is.

Next, the operation of the first embodiment will be described. At each ovulation cycle of the living body, the ovary 300 is artificially drawn to the vicinity of the innermost part of the vaginal wall 200 by inserting a hand from the rectum, and in parallel, the grip function part 32b is grasped and ultrasonic detection is performed on the innermost part of the vaginal wall 200. Insert the child 1 into the vagina so that it abuts and image the ovary 300 with small follicles. At that time, the tip of the protection tube 22 also abuts on the back end of the vaginal wall 200, and the egg collection needle 12 is at the same level as the tip of the protection tube 22. Next, while watching the image, the operation knob 52d-4 was operated at the hand portion by the forward distance corresponding to the predetermined distance, and the egg collection needle 12 in the protection tube 22 was gradually advanced to cause the needle tip to be located on the ovary 300. Bring up the small follicle. As a result of manipulating the operation knob 52d-4 and inserting the vaginal wall 200 and advancing it stepwise, the needle tip can reach the small follicle of the ovary 300 steadily without accelerating the advance. After that, the pump 42b is operated to collect eggs in the egg storage containers 42c, 42c.

As shown in the figure, the feature of this embodiment is that the needle tip of the egg collecting needle 12 is located at the tip of the protective tube 22 in a state where the operation hooking convex portion 52d is hooked on a hooking hole 52c-1. Since they are located at the same level, if the spacing of the latching holes 52c-1 is made to coincide with the above-mentioned predetermined distance, the latching operation protrusions 52c will be raised only one step so that the latching holes 52c-1 will be latched in the upper latching holes 52c-1. By moving the egg collection needle 12 needle tip can easily reach the small follicle formed in the ovary 300, and since the egg storage container 42c is a double type, it is possible to prevent the invasion of the egg into the pump 42b. In addition, many hook holes 52c-1 are provided by varying the pitch interval within the above-mentioned predetermined distance of 2 cm so that it can be adapted without or with the size of the mother's body and the skill of a specialist who draws the ovaries 300. It doesn't matter.

Next, a second embodiment shown in FIG. 3 will be described. In this embodiment, the egg collection needle 12 is vertically cut into a discharge flow passage 12a for the reflux production liquid and a suction flow passage 12b for the reflux liquid, and There is no difference from the first embodiment except that the charging device 42 is composed of a discharge device 42d for supplying the reflux liquid and a suction device 42e for sucking the reflux liquid, and the other components are given the same reference numerals and described. Is omitted.

The discharge device 42d is composed of a liquid storage tank 42d-1 and a pressure pump 42d-2 for pressurizing the liquid storage tank 42d-1, as shown in the drawing, and the suction device 42e is the first embodiment. The configuration is similar to the capture device 42 in the example. Although not shown, the discharge device 42d and the suction device 42e are syringe-like discharge mechanism and suction mechanism for artificially or mechanically operating to send out the reflux liquid or suck the reflux liquid, similarly to the above-mentioned embodiment. It doesn't matter.

According to the first, second, third, fourth and sixth aspects, the ultrasonic probe 1 and the protective tube 12 are integrally fixed in parallel to the vaginal insert 32 in a state of being in close contact with each other. It includes what you are doing. Even in this case, since the egg collection needle 12 advances straight from a position approaching in the same direction as the ultrasonic probe 1, the small follicle formed in the ovary 300 is reliably reached.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a first embodiment.

FIG. 2 is an enlarged plan view of a main part, in which a part is cut away and a middle part is omitted.

FIG. 3 schematically shows a plan view of a second embodiment.

[Explanation of symbols]

1: Ultrasonic probe 2: Egg-collector 12: Egg-collecting needle 22: Protective tube 42: Intake device 12a: Discharge flow path of reflux generated flow 12b: Suction flow path of reflux liquid 42d: Discharge device 42e: Suction device 52: Unhooking part 52a: Cylindrical proximal part 52b-1: Through hole 52b-2: Set screw 52b: Needle holder 52c-1: Locking hole 52c: Slit for guide 52d: Locking protrusion for operation

Claims (6)

[Scope of utility model registration request] 1. An ultrasonic probe and an egg-collecting device configured such that an egg-pickup needle is housed in a protective cylinder with a needle tip made accessible and retractable, and a rear end of the egg-pickup needle is connected to an egg-acquisition device. An egg-collecting device for livestock, which is integrated with the protective cylinder. 2. The egg collection needle according to claim 1 is longitudinally divided into a discharge flow path of the reflux production liquid and a suction flow path of the reflux liquid, and an intake device supplies the reflux production liquid to the discharge flow passage. An egg-collecting device for livestock, comprising a discharge device and a suction device for sucking reflux liquid from a suction flow path. 3. The livestock egg collecting apparatus according to claim 1, wherein the ultrasonic probe and the tip of the protective cylinder are arranged at the same or substantially the same position. 4. A hooking / releasing portion is provided between the base portion of the protective cylinder and the egg collecting needle to adjust stepwise the amount of protrusion of the egg collecting needle from the tip position of the protective cylinder. The egg collection device for livestock according to claim 3. 5. The egg collection needle is oriented in a direction intersecting at a position at a predetermined interval on an extension virtual line between the center line of the ultrasonic probe and the tip of the egg collection needle. Item 4. The egg collection device for livestock according to item 4. 6. The hooking and detaching portion is tightly connected to a tubular hand portion which constitutes a rear end portion of a protective cylinder and has an open rear end, a through hole for penetrating an egg collecting needle and an egg collecting needle portion in the through hole. A needle holder that has a set screw and is slidably fitted in the tubular proximal portion, and a hook hole provided on the side surface of the tubular proximal portion from the rear end in the sliding direction of the needle holder. A guide slit that is opened in a communicating manner at appropriate intervals, and an operation latching projection that is provided on the needle holder so as to project and that is elastically engaged with and disengaged from the latching hole by being guided by the guide slit. The head egg diameter of the set screw is equal to or smaller than the width of the guide slit, and the egg collecting apparatus for livestock according to claim 4, wherein