JPH105256A - Ovarium extorpation equipment for mammalia - Google Patents

Abstract

PROBLEM TO BE SOLVED: To not damage the peritoneal cavity and to smoothly flow a medicine into the peritoneal cavity by securely holding and fixing the medicine flow out port of an ovarium cutting pipe and the ovarium extorpation port of an inner pipe. SOLUTION: This equipment is composed of an outer pipe 10, an inner pipe 20 inserted into the outer pipe 10 so that the inner pipe 20 can freely be slid, and an ovarium cutting pipe 30 inserted into the inner pipe 20 so that the ovarium cutting pipe 30 can freely be slid. The top end of the outer pipe 10 is opened, and an ovarium extorpation port and a support handle 13 are arranged at its side. A vagina wall drilling equipment 21 is fitted at the top of the inner pipe, an ovarium storage section 22 is disposed at its rear side, an ovarium extorpation port 23 and a blood vessel crushing handle 24 are arranged at its side, a vagina wall drilling handle 25 is attached to the rear of the support handle of the outer pipe, an ovarium cutting blade 31 is fitted at the top of the ovarium cutting pipe 30, an ovarium cutting pressure plate 32 is fitted at the rear end projecting from the inner pipe, a medicine injecting port 34 is formed at the rear end the ovarium cutting pipe, and a medicine flow out port is formed at the side of the front of the ovarium cutting pipe. A means is provided which temporarily fixes a position of the inner pipe 20 relative to the outer pipe 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mammalian ovariectomy device.

[0002]

2. Description of the Related Art Ovaries are removed from living mammals for the purpose of suppressing in vitro fertilization, fattening, and estrus of mammals. As a method of removing ovaries from a living mammal, a method using laparotomy, a method using a finger knife to remove the ovaries from the abdominal cavity through the vaginal wall, a method using an ovarian cutter, and the like have been proposed. However, the method of removing the ovaries by laparotomy has problems in terms of cost, time, accidents, and nursing. In addition, it is not applicable to heifers and vaginal stenosis animals. Furthermore, even when the method using an ovarian cleft was used, there were many bleeding accidents, and in addition, the problem of ovarian residue in the abdominal cavity was pointed out. For example, Japanese Unexamined Patent Publication No. 3-247331 discloses a device in which a vaginal wall of a target animal is punctured, an ovary container is inserted into the abdominal cavity, and the ovaries are removed while assisting with one hand. For insertion of the device into the abdominal cavity, this device needs to perform an operation of rotating the lever while supporting with only one hand when cutting the extra-ovarian tissue. This is a rather difficult operation and it is difficult to say that the operation is easy. In addition, a method is described in which the blade at the cutting portion is not sharp but engages with wavy folds, but this does not reduce bleeding to a low degree, and cannot be said to be a particularly effective measure.

In order to solve the above-mentioned conventional drawbacks, the present inventors puncture the vaginal wall of the subject animal, insert the ovary container into the abdominal cavity, and remove the ovary while assisting with one hand. Ovariectomy device, which can easily and quickly remove the ovary from a living mammal without using laparotomy, in particular, has less bleeding during severing and has good operability. No. 6-218368 (Japanese Unexamined Patent Application Publication No.
No. -80310).

Next, a description will be given of an ovary removal device described in Japanese Patent Application Laid-Open No. 8-80310.

The ovariectomy device includes an outer tube, an inner tube slidably inserted into the outer tube, and an ovariectomy tube slidably inserted into the inner tube. The tube has an open end and has an ovarian sampling port and a support handle on the side, and the inner tube has a vaginal wall piercing device fixed at the end and an ovary receiving section at the rear of the vaginal wall piercing device and has an ovarian sampling port and blood vessel crush on the side. A vaginal wall perforating work handle is provided behind the support handle of the outer tube, the working tube being provided with a working handle, the ovariectomy tube having an ovariectomy blade fixed at its tip, and ovariectomy at a rear end protruding backward from the inner tube. A pressing plate is attached.

[0006] The ovary resection device is configured to puncture the vaginal wall of the target animal, insert the ovarian storage part of the inner tube into the abdominal cavity, and extract the ovaries while assisting with one hand. When removing the ovaries, the connecting tubing such as the blood vessels connecting the ovaries and the uterus in the extra-ovarian tissue part is temporarily pressed to crush the ovaries. One hand into the animal's rectum to assist in the introduction of the device, and with the other hand to operate the lever without releasing the support handle, and as an aid to part of the worker's body (eg, Breast, etc.), removing the ovaries without laparotomy, reducing bleeding during amputation, and administering a drug solution into the abdominal cavity immediately after removal of the ovaries to prevent the occurrence of peritonitis and secondary diseases It is.

[0007]

Recently, Japanese Unexamined Patent Publication No.
It has been found that it is desirable to further impart the following features to the ovariectomy device described in No. 80310. (1) In operating the oophorectomy device, one hand is inserted into the rectum from the anus of the living mammal and the other hand grasps the support handle of the oophorectomy device while feeding the front portion of the oophorectomy device. Insert it into the vagina of the animal, move the tip of the ovariectomy device through the intestinal wall with the hand inside the rectum, guide it to the area around the outer uterine ostium, and insert the vaginal wall piercing device through the tip opening of the outer tube of the ovariectomy device. The vaginal wall is protruded to break the vaginal wall, and then the ovariectomy device is inserted into the abdominal cavity, and the vaginal wall piercing device is automatically retracted from the distal end of the outer tube. However, after inserting the ovariectomy device into the abdominal cavity, there is a risk that the vaginal wall piercing device may jump out into the abdominal cavity for some reason and damage tissues and organs in the abdominal cavity.
In order to eliminate this, it is desirable that the vaginal wall perforator be fixed so that it does not protrude from the outer tube after breaking the vaginal wall, and also during transportation of the ovariectomy device. (2) The worker presses the ovariectomy pressing plate on the chest to advance the ovariectomy blade, shears the tissue part associated with the ovary, and separates the ovary from the uterus. The ovaries are pushed further into the ovarian receptacle by further pressing the ovariectomy pressure plate. Next, the operator's chest is released from the pressed state, and the ovariectomy device is returned to the original state. In this state, rotate the ovariectomy pressing plate so that the drug solution outlet of the ovariectomized tube coincides with the central portion of the ovarian sampling port of the inner tube and the outer tube, and a drug such as an antibiotic is used.
Inflow from the drug solution inlet of the ovariectomy tube and ejection from the drug solution outlet through the ovarian sampling port into the abdominal cavity prevent the occurrence of peritonitis and other diseases in mammals. Among these operations, it is desirable to hold and fix the drug solution outlet of the ovariectomy tube and the ovary collection port of the inner tube, and to easily and reliably perform the outflow and spraying of the drug solution with only one hand.

[0008] The present invention has been made in view of the above points, and it is possible to easily and quickly remove an ovary from a living mammal without using laparotomy. An ovariectomy device for an animal, wherein the vaginal wall piercing device does not protrude from the outer tube after perforation of the vaginal wall and does not damage the abdominal cavity. It is an object of the present invention to provide a liquid medicine capable of smoothly flowing out a medicinal solution into an abdominal cavity by reliably holding and fixing an ovarian sampling port.

[0009]

In order to achieve the above object, the present invention provides an outer tube, an inner tube slidably inserted into the outer tube, and a slidably inserted inner tube. An inserted ovariectomy tube, wherein the outer tube is open at the tip, has an ovary outlet and a support handle on the side, and the inner tube has a vaginal wall piercer at the tip, An ovarian housing is provided at the rear, an ovary sampling port and a handle for crushing blood vessels are provided on the side, and a handle for perforating the vaginal wall is attached to the back of the support handle of the outer tube. A mammal comprising a knife, an ovariectomy pressing plate attached to a rear end protruding rearward from the inner tube, a medicinal solution inlet provided at a rear end of the ovariectomy tube, and a medicinal solution outlet provided on a front side surface of the tube; Ovariectomy device, temporarily position the inner tube relative to the outer tube Characterized in that a means for the constant.

Further, the present invention is characterized in that a stopper for keeping the distal end of the inner tube on the piercing side inside the outer tube is fixedly and releasably provided.

In the present invention, the stopper for keeping the inner tube inside the outer tube is slidably fitted in a through hole provided in the support handle in parallel with a center axis of the outer tube,
A stopper lock groove is formed on the outer periphery of the stopper so that a stopper pin fits in the stopper. The stopper pin is provided at a fixed portion of the support handle at right angles to the center axis of the stopper and offset from the center axis. The stopper pin is slidably disposed in the hole, and the stopper pin is formed with a lock release groove in which the stopper is fitted.

Further, the present invention is characterized in that a spring is interposed between the stopper pin and a support handle fixing portion.

The present invention also includes an outer tube, an inner tube slidably inserted into the outer tube, and an ovariectomy tube slidably inserted into the inner tube, The outer tube has an open end, an ovarian sampling port and a support handle on the side, the inner tube has a vaginal wall piercing device fixed at the end, and has an ovarian housing at the rear of the vaginal wall piercing device. An ovariectomy port and a handle for crushing blood vessels are provided, and a handle for perforating the vaginal wall is provided behind the support handle of the outer tube. The ovariectomy tube has an ovariectomy blade at a tip thereof, and extends rearward from the inner tube. At a protruding rear end, an ovariectomy pressing plate is attached, a drug solution inlet is provided at a rear end of the ovariectomy tube, and a drug solution outlet is provided behind the ovariectomy blade. When the drug solution flows out of the outlet into the abdominal cavity of the mammal, Characterized in that a means for holding and fixing a substantially central portion of the ovaries sampling port of the inner tube mouth.

Further, in the present invention, the means for holding and fixing the drug solution outlet at substantially the center of the ovary sampling port of the inner tube comprises a lock groove formed on the outer periphery of the ovariectomy tube and a lock pin fitted to the lock groove. Wherein the lock pin has a lock release groove,
The lock pin is slidably mounted in a hole provided at a fixing portion of the vaginal wall drilling handle perpendicular to the central axis of the ovariectomy tube and offset from the central axis. .

Further, the present invention is characterized in that both ends of the lock pin are expanded.

Further, the present invention is characterized in that there is provided a means for holding and fixing the drug solution outlet substantially at the central portion of the ovary collecting port of the inner tube when the drug solution flows out from the drug solution outlet into the abdominal cavity of the mammal. And

Further, according to the present invention, the stopper for keeping the inner tube inside the outer tube is slidably fitted in a through hole provided in the support handle in parallel with a center axis of the outer tube,
A stopper lock groove is formed on the outer periphery of the stopper so that a stopper pin fits in the stopper. The stopper pin is provided at a fixed portion of the support handle at right angles to the center axis of the stopper and offset from the center axis. A lock release groove is formed slidably in the hole, the stopper pin is fitted in the stopper pin, a lock spring is interposed between the stopper pin and a support handle fixing part, and the stopper pin is provided inside the chemical liquid outlet. The means for holding and fixing substantially at the central portion of the ovarian sampling port of the tube comprises a lock groove formed on the outer periphery of the ovariectomy tube and a lock pin fitted therein, the lock pin having a lock release groove, A lock pin is slidably received in a hole provided at a fixing portion of the handle for puncturing the vaginal wall at a position perpendicular to and offset from the central axis of the ovariectomy tube. It is characterized by being attached.

Further, the present invention enables the support handle, the handle for crushing blood vessels, and the handle for perforating the vaginal wall to be detachable from the ovariectomy device, and presses the handles when the ovariectomy device is stored. It is characterized by being screwed into a screw hole provided in the plate and fixed.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing a schematic configuration of an oophorectomy device according to the present invention, FIG. 4 is a longitudinal sectional view showing a schematic configuration when a vaginal wall is pierced by an oophorectomy device according to the present invention, and FIG. FIG. 9 is a longitudinal sectional view showing a schematic configuration of the ovariectomy device according to the present invention at the time of ovary insertion; FIG. 9 is a longitudinal sectional view showing a schematic configuration of the ovariectomy device according to the present invention at the time of crushing of blood vessels and ovariectomy; FIG. 3 is a longitudinal cross-sectional view showing a schematic configuration at the time of injecting a chemical solution.

The structure of the ovariectomy device for mammals according to the present invention is as follows.

The mammalian ovariectomy device 1 of the present invention is a slender cylindrical body, and is used in a substantially horizontal state as shown in FIGS. 1, 4, 7, 9, and 12. Therefore, in the following description, the horizontal state will be referred to as up, down, left and right. The perforated side is referred to as front.

The ovariectomy device 1 can be roughly described as an outer tube 10
And an inner tube 20 slidably inserted into the outer tube 10.
And an ovariectomy tube 30 slidably inserted into the inner tube 20.

The outer tube 10 is the outermost frame of the ovariectomy device 1 and the inner tube 20 can slide in the longitudinal direction inside the outer tube 10. The outer tube 10 has an opening 11 at the tip, an ovary sampling port 12 on the upper side, and a support handle fixing part 1 on the lower side.
3A is attached, and the support handle 13 is fixed downward. The ovary collection port 12 is an entrance for pushing the ovaries 100 into the oophorectomy device 1, and has a fold formed at the rear edge thereof.

The inner tube 20 is slidable inside the outer tube 10 in the longitudinal direction, and the rear portion projects outward from the rear end 15 of the outer tube 10. The inner tube 20 has a vaginal wall piercing tool 21 at the tip.
Must be fixed, an ovary receiving portion 22 is provided at the rear of the vaginal wall piercing device 21, and the distal end has a volume enough to receive at least two ovaries 100. In addition, an ovarian sampling port 23 is provided on the upper side surface, and a blood vessel crushing work handle 24 is provided in front of the support handle 13,
Further, a vaginal wall perforating work handle 25 is provided at a position behind the support handle 13 of the outer tube 10 so as to be grippable by fingers of a hand via a handle fixing portion 25A. Each of these handles is detachably attached to the fixed portion by screws.

The vaginal wall piercing device 21 has a sharpened tip. Further, by making the vaginal wall piercing device 21 detachable by an appropriate means, it is possible to use a vaginal wall piercing device 21 having a different angle at the tip of the vaginal wall piercing device as needed. The vaginal wall piercing device 21 is configured to be automatically retracted from the tip of the outer tube 10 by a spring or the like except when used, but the vaginal wall is pierced during the operation after the ovariectomy device 1 is inserted into the abdominal cavity 7. There is a possibility that the piercing tool 21 may jump out into the abdominal cavity 7 for some reason and damage tissues and organs in the abdominal cavity 7. In order to eliminate this, the vaginal wall piercing device 21 is provided with a means for fixing the vagina 6 so that it never breaks out of the outer tube 10 after breaking the wall of the vagina 6. This is one of the present invention and will be described below.

FIG. 2 is a front view of the stopper (for locking the vaginal wall piercing device) schematically illustrating the structure of the stopper in a releasable state, and FIG. 3 is a side view of FIG. FIG. 5 is a front view of a stopper fixed state illustrating a schematic configuration of a stopper for locking a vaginal wall piercing device according to the present invention. FIG. 6 is a side view of FIG.

The stopper for locking the vaginal wall piercing device is fixed so that the vaginal wall piercing device 21 never projects from the outer tube 10 after piercing the vaginal wall in order to prevent the vaginal wall piercing device 21 from damaging the abdominal cavity 7. It is a means for doing.

The fixing means comprises a stopper 50 and a stopper pin 51.
3, the distance between the support handle 13 and the handle 25 for perforating the vaginal wall can be kept constant.
Therefore, the inner tube 20 does not protrude from the outer tube 10. The stopper 50 is slidably fitted in a through hole 13B provided in parallel with the central axis of the outer tube 10 in the fixing portion 13A of the support handle, and the stopper 50 is an end near the vaginal wall drilling work handle 25. A stopper lock groove 52 for engaging a stopper pin 51 is formed on the outer periphery near the opposite end (the end close to the blood vessel crushing work handle 24), and the stopper pin 51 is provided with the stopper pin 51. In the fixed portion 13A of the handle, it is slidably disposed in a hole 13C provided at right angles to the center axis of the stopper 50 and eccentric to the center axis. The stopper pin 51 has an enlarged head 5 at both ends.
1B, a vaginal wall puncture device lock release groove 53 is formed in the outer periphery of the central portion at both ends to engage the stopper 50, and one head 51B (the right end in FIG. 3) and the support handle fixing portion 13A.
A lock spring 51A (compression spring) is interposed between the stopper lock groove 52 and the lock release groove 53. The stopper 50 can move only when it is in the vaginal wall puncture device lock release groove 53.
Even if the stopper pin 51 is released (even at a position other than the stopper lock groove 52) by the spring 51A, the stopper 50 moves and the stopper lock groove 52
The stopper pin 51 is always fixed when it is fitted.

The ovary housing section 22 has at least two ovaries 1
It has a capacity to accommodate 00. The vessel crushing handle 24 is provided in front of the support handle 13 with the inner tube 2.
It is attached downward to 0 and within a range where the fingers of the hand can be gripped by the support handle 13. The ovarian sampling port 23 is an inlet for pushing the ovary 100 into the inner tube 20, and has a fold formed at the edge on the tip side.

When the handle 24 for crushing the blood vessel is operated so as to be gripped together with the support handle 13, the ovarian sampling port 23 of the inner tube 20 and the ovarian sampling port 12 of the outer tube 10 are gradually narrowed from the fully opened state, and finally, The hole is closed, and the extra-ovarian tissue is tightened between the fold of the ovarian sampling port 23 and the fold of the ovarian sampling port 12 to crush the blood vessels to the ovary. At this time, the extra-ovarian tissue portion is not cut but merely clamped between the folds.

The distance between the support handle 13 and the handle 25 for perforating the vaginal wall and the distance between the support handle 13 and the handle 24 for crushing the blood vessel are approximately each gripped between the thumb of one hand and the other finger (for example, the index finger). Set the distance as possible. By doing so, the mutual movement of the outer tube and the inner tube can be moved by simply grasping the handle with only one hand by the operation of grasping the two handles.

In order to facilitate this operation, a compression spring 27 is interposed between the blood vessel crushing work handle 24 and the rear end 15 of the outer tube 10, and the blood vessel crushing work handle 24 and the outer tube 10
A compression spring 26 is interposed between the compression spring 26 and the intermediate wall 14.

Due to the balance between the compression spring 27 and the compression spring 26, in the case shown in FIG.
And the ovarian sampling port 12 of the outer tube 10 exactly matches the inner tube 2
The vaginal wall piercing tool 21 at the end of No. 0 is retracted from the distal end opening 11 of the outer tube 10. However, when the vaginal wall piercing operation handle 25 is squeezed with one finger and approached to the support handle 13 against the elasticity of the compression spring 26, the vaginal wall piercing tool 21 projects from the distal end opening 11 of the outer tube 10 (FIG. 4), and when the finger is released, it returns to the state shown in FIG. Next, when the handle 24 for crushing blood vessels is squeezed with one finger and approached to the support handle 13 against the elasticity of the compression spring 27, the inner tube 20 retreats relatively to the outer tube 10, that is, rightward in the drawing. The ovary collection port 23 of the inner tube 20 and the ovary collection port 12 of the outer tube 10 are shifted, and the communication hole is closed (FIG. 9). In other words, blood vessels and the like communicating with the ovaries in the extra-ovarian tissue are compressed. When you release your finger, it will return to its original state.

The ovariectomy tube 30 can slide in the longitudinal direction inside the inner tube 20, the rear portion protrudes from the rear end of the inner tube 20 to the outside, and the rear portion becomes the ovariectomy tube thick portion 30A. ing. The ovariectomy tube 30 has a cup-shaped piston at the tip, and the periphery thereof becomes an ovariectomy blade 31, and the ovariectomy blade 31 has a cutting blade facing forward. After cutting, it also acts to push the ovaries into the housing. Ovariectomy tube 3
The ovariectomy pressing plate 32 is fixed to the thick portion 30A at the rear of the oval. When the ovariectomy pressing plate 32 is pushed into the inner tube 20, the ovariectomy blade 31 is moved to the ovarian sampling port 23 of the inner tube 20.
As the ovaries slide forward just inside the ovary, the ovaries are sheared while being sandwiched between the ovary collection port 12 and the ovary collection port 23 (FIG. 9). Due to the compression spring 33 interposed between the rear end of the inner tube 20 and the rear end of the ovariectomy tube 30, that is, between the ovariectomy pressing plate 32, the ovariectomy blade 31 is normally moved behind the ovarian sampling port 23 of the inner tube 20 ( That is, the ovariectomy knife is positioned at the right side of the ovarian sampling port 23 in the figure), but when the ovariectomy pressing plate 32 is pressed with a part of the body of the operator, such as the chest, that is, when the ovariectomy pressing plate 32 is moved to the left in the figure, When the member 31 moves forward against the elasticity of the compression spring 33 and stops pressing the ovariectomy pressing plate 32, the ovariectomy blade 31 returns to the original position shown in FIG.

After the ovaries are excised, for example, in order to prevent peritonitis, a drug solution is allowed to flow through the ovariectomy tube 30 from a drug solution inlet 34 provided at the rear end of the ovariectomy tube 30, and the drug solution flow at the front end thereof is performed. The drug is administered by flowing out of the outlet 35 into the abdominal cavity. At this time, in order to allow the drug solution to flow smoothly into the abdominal cavity, the drug solution outlet 35 of the ovariectomy tube 30 and the ovarian sampling port 23 of the inner tube 20 and the ovarian sampling port 12 of the outer tube 10 are securely fixed. Means are provided. This is one of the present invention and will be described below.

FIGS. 8, 10, 11 and 12 show the liquid outlet 3 of the ovariectomy tube 30 for allowing the liquid to flow smoothly into the abdominal cavity 7.
FIG. 11 is a view for explaining a means for securely fixing the positions of the ovarian resection tube and the ovary collection ports 12 and 23. FIG. 11 shows a state in which the center between the drug solution outlet of the ovariectomy tube and the ovary collection port is securely fixed. FIG. 1A is a front view, and FIG.
1 (a) is a cross-sectional view taken along line CC, and FIG. 1 (c) is a cross-sectional view of the instrument showing a state where the center of the drug solution outlet and the center of the ovary sampling port are aligned.

The means for fixing the drug solution outlet 35 to the center of the ovarian sampling port 23 of the inner tube 20 and the center of the ovarian sampling port 12 of the outer tube 10 is formed on the outer periphery of the thick portion 30A of the ovariectomy tube 30. Lock groove 41 and an ovariectomy tube lock pin 40 fitted thereto. The ovariectomy tube lock pin 40 is perpendicular to the central axis of the ovariectomy tube 30 at the fixing portion 25A of the vaginal wall perforation work handle 25 and The lock pin 40 is slidably mounted in a hole 25B provided eccentrically with respect to the center axis. The lock pin 40 has enlarged heads at both ends. 8 has a lock release groove 42 on the outer periphery (FIG. 8).
(In (b), it is deviated leftward from the center.)

According to this configuration, the ovariectomy tube lock pin 4
As long as the ovariectomy tube 30 is engaged with the zero release groove 42, the ovariectomy tube 30 can slide with respect to the inner tube 20. When the lock groove 41 and the lock pin 40 provided so that the inner tube 20 and the ovariectomy tube 30 are located at the position at the time of drug solution outflow,
When the entire ovariectomy device 1 is tilted, it moves in the tilting direction due to the weight of the expanded portion at both ends of the lock pin 40 and shifts the position of the lock release groove 42, and the lock pin 40 and the lock groove 41 are shifted.
Are engaged with each other, and the positions of the inner tube 20 and the ovariectomy tube 30 are fixed. After the drug solution has flowed out, the ovariectomy tube 30 can be moved if the entirety of the ovariectomy device 1 is tilted in the opposite direction and the lock release groove 42 is aligned with the position of the ovariectomy tube 30. In this way, the fixation and release of the drug solution administration position can be performed simply by tilting the ovary extraction device 1 without using a hand, so that the extraction operation can be performed easily for the operator.
This is particularly effective when a chemical solution needs to be repeated.

FIG. 13 is a view showing a method of fixing the support handle, the blood vessel crushing work handle and the vaginal wall perforating work handle when the oophorectomy device according to the present invention is stored.

Each of the support handle 13, the handle 24 for crushing blood vessels, and the handle 25 for perforating the vaginal wall can be detached from the ovariectomy device 1.
And can be stored together. For example, as shown in FIG. 13, screw holes 32a are provided on one surface of the ovariectomy pressing plate 32, and the three removed handles are screwed and fixed in these holes 32a. FIG.
In 3, only the vaginal wall perforation work handle 25 is fixed. Alternatively, by changing the diameter of these three handles, the other two may be accommodated in one handle, or the three handles may be screwed in the longitudinal direction to form one. This may be fixed to the ovariectomy pressing plate 32 in parallel with the ovariectomy tube 30. This facilitates disinfection and storage after use of the ovariectomy device 1.

An operation method of the ovariectomy device for mammals according to the present invention having the above-described configuration will be described with reference to the drawings. (1) The oophorectomy device 1 is taken out of the storage box, and the support handle 13, the blood vessel crushing operation handle 24, and the vaginal wall perforation operation handle 25 are fixed to the operation position of the oophorectomy device 1, respectively. (2) Insert the right hand 3 into the rectum 9 from the anus 5 of the living cow. (3) While grasping the support handle 13 and the blood vessel crushing work handle 24 with the left hand 4, insert the ovariectomy instrument 1 into the vagina 6 of a living cow. (4) With the right hand 3 in the rectum, the tip of the ovariectomy instrument 1 is rounded through the intestinal wall and guided to the periphery of the external cervix (see FIG. 4). (5) Press the stopper pin 51 with a finger and press the stopper 50
When the vaginal wall perforating work handle 25 and the support handle 13 are squeezed with the finger of the left hand 4 while allowing the user to move freely,
The vaginal wall piercing device 21 projects from the distal end opening 11 of the outer tube 10,
Pushing the ovariectomy device 1 forward breaks the dorsal side of the vaginal wall (see FIG. 4). The relationship between the stopper pin 51 and the stopper 50 at this time is as shown in FIGS. (6) When the ovariectomy device 1 is inserted into the abdominal cavity 7 and the left hand 4 is released, the vaginal wall piercing device 21 is automatically retracted from the distal end opening 11 of the outer tube 10 and the sampling port 12 is opened at the same time. (See FIG. 7). When the support handle 13 and the vessel crushing work handle 24 are squeezed, the stopper 50 moves with respect to the support handle 13 and the stopper lock groove 52 is closest to the stopper pin 51 (see FIG. 5). 6, the lock spring 51A is released to the state shown in FIG. 6, and the stopper pin 51 enters the stopper lock groove 52 and the stopper 5
0 is fixed. Thereafter, the ovarian collection port 23 of the inner tube 20 and the ovary collection port 12 of the outer tube 10 that overlap each other are positioned in the abdominal cavity 7. (7) One ovary 100 while searching with the fingers of the right hand 3
From the ovariectomy ports 12 and 23 of the ovariectomy device 1 to the inner tube 2
0 (see FIG. 7). (8) Support handle 13 and blood vessel crushing work handle 24
Is squeezed with the finger of the left hand 4, the inner tube 20 retreats relatively to the outer tube 10, and the position of the ovarian sampling port 23 of the inner tube 20 and the position of the ovarian sampling port 12 of the outer tube 10 are relatively shifted. Between the fold of the ovarian sampling port 23 and the fold of the ovarian sampling port 12,
Tightening the tissue portion associated with 0 causes the blood vessels to ovary 100 to crush. The relationship between the ovariectomy tube 30 and the lock pin 40 from the start of the operation to this time is as shown in FIG. (9) In this state, when the worker 2 pushes the ovariectomy pressing plate 32 with his own chest, the ovariectomy blade 31 advances, and the ovary 10
The ovary 100 is separated from the uterus 8 by shearing the tissue portion associated with 0. When the ovariectomy pressing plate 32 is further pressed, the ovaries 1
00 is pushed into the ovary receptacle 22. The entire state at this time is shown in FIG. 9, and the relationship between the ovariectomy tube 30 and the lock pin 40 is shown in FIG. (10) Next, when the operator 2 releases the pushing state on the chest, the ovariectomy pressing plate 32 returns to the original position, and releases the support handle 13 and the blood vessel crushing work handle 24 from the clamped state. The oophorectomy device 1 is in the state shown in FIG. (11) The operation steps (7), (8), and (9) are repeated, and the remaining one ovary 100 is separated from the uterus 8 and pushed into the ovary housing 22. (12) With the ovary resection pressing plate 32 pressed by the chest of the worker 2, the ovary resection device 1 is tilted as shown in FIG. 11 (b). Thereafter, the ovariectomy pressing plate 32 is slowly released from the chest of the worker 2. Then, when the lock groove 41 formed on the outer periphery of the thick portion 30A at the rear of the ovariectomy tube 30 reaches the position of the ovariectomy tube lock pin 40 (FIG. 11A).
11), the lock pin 40 slides down in the direction of the arrow due to gravity, and the ovariectomy tube 30 is fixed as shown in FIG. 11B. At this time, as shown in FIG. 11C, the drug solution outlet 35 of the ovariectomy tube 30 is just inserted into the ovary sampling port 12, 2
3 so that it comes to the center. In this state, by turning the ovariectomy instrument 1 upside down, the drug solution can be appropriately administered into the abdominal cavity 7 (see FIG. 12). If the lock pin 40 is difficult to slide down, it may be pressed with a finger.

Normally, the two ovaries 100 are cut off from the uterus 8 and pushed into the ovary accommodating portion 22, and then the drug solution is spouted into the abdominal cavity 7.
The drug solution may be administered into the abdominal cavity 7 before the uterus 8 is separated from the uterus 8 and pushed into the ovarian housing 22. At this time, the ovariectomy tube 30 can be moved freely. In this case, to remove the second ovary, the above (7) (8)
Perform the operation of (9). (13) The ovary resection device 1 is removed from the body of the cow so that the ovaries that have been removed do not fly out of the ovary collection port, and the two ovaries 100 that have been removed are removed. Thus, the operation of removing the ovaries is completed. (14) After the above operation is completed, the oophorectomy device 1 is disassembled,
Wash and disinfect. When assembling after drying, the support handle 13, the blood vessel crushing work handle 24 and the vaginal wall perforating work handle 25 can be compactly stored by being attached to the hole 32a of the ovariectomy pressing plate as shown in FIG. It becomes convenient.

[0044]

As described above, according to the present invention, the following excellent effects can be obtained. (1) The inside of the abdominal cavity is not damaged after the wall of the vagina is broken by the vaginal wall piercing device and the ovariectomy device is inserted into the abdominal cavity. It is also safe during transport. (2) The drug solution can be reliably discharged to the intraperitoneal resection site. (3) The collected ovaries do not protrude. (4) The position can be fixed by a simple one-handed operation such as gripping the handle or tilting the ovariectomy instrument. (5) Since the support handle, the handle for crushing blood vessels, and the handle for perforating the vaginal wall are attached to the ovariectomy pressing plate, it is compact and convenient for storage and transportation.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a schematic configuration of an ovariectomy device according to the present invention.

FIG. 2 is a front view illustrating a schematic configuration of a stopper for locking a vaginal wall piercing device according to the present invention. It is a side view at the time of the state in which the stopper for locking a vaginal wall piercing device is slidable.

FIG. 3 is a side view of FIG. 2 when the stopper for locking the vaginal wall piercing device according to the present invention is in a slidable state.

FIG. 4 is a longitudinal cross-sectional view showing a schematic configuration of the oophorectomy device according to the present invention when a vaginal wall is perforated.

FIG. 5 is a front view illustrating a fixed state of a stopper for locking a vaginal wall piercing device according to the present invention.

FIG. 6 is a side view of FIG. 5 illustrating a fixed state of a stopper for locking a vaginal wall piercing device according to the present invention.

FIG. 7 is a longitudinal sectional view showing a step of pushing one ovary from an ovary sampling port into an inner tube while circling with the right finger in the ovariectomy device according to the present invention.

FIG. 8 is a view of a slidable state illustrating a means for securely fixing the center between a drug solution outlet of an ovariectomy tube and an ovary sampling port in order to smoothly eject a drug solution into an abdominal cavity in the present invention;
8A is a front view, and FIG. 8B is a cross-sectional view taken along line BB of FIG. 8A.

FIG. 9 is a longitudinal cross-sectional view showing a schematic configuration of the ovary resection device according to the present invention at the time of crushing an ovary-inserted blood vessel and performing ovariectomy.

FIG. 10 is a view for explaining a drug solution jetting means for surely fixing the center between the drug solution outlet of the ovariectomy tube and the ovary sampling port in the present invention to smoothly jet a drug solution into the abdominal cavity.

11A and 11B are diagrams illustrating a state in which the center between the drug solution outlet of the ovariectomy tube and the ovary collection port is securely fixed, in which FIG. 11A is a front view, and FIG. 11B is FIG. 11A. (C) is a cross-sectional view of the device showing a state in which the center of the drug solution outlet coincides with the center of the ovary sampling port.

FIG. 12 is a diagram illustrating a state in which the center of the drug solution outlet of the ovariectomy tube and the center of the ovarian sampling port are surely coincident with each other in the present invention.

FIG. 13 is a view showing a method of fixing the support handle, the blood vessel crushing work handle, and the vaginal wall perforating work handle when the oophorectomy device according to the present invention is stored.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ovariectomy device 10 Outer tube 11 Opening 12 Ovarian sampling opening 13 Support handle 13A Fixing portion of support handle 13B Through hole 13C hole 14 Intermediate wall of outer tube 15 Rear end of outer tube 20 Inner tube 21 Vaginal wall drilling device 22 Ovarian storage Part 23 Ovarian sampling port 24 Handle for blood vessel crushing work 25 Handle for vaginal wall perforation work 25A Fixed part 25B Hole 30 Ovariectomy tube 30A Thick part 31 Ovariectomy blade 32 Ovariectomy pressing plate 34 Chemical inlet 35 Chemical outlet 40 Ovarian Resection tube lock pin 42 Lock release groove 50 Stopper for locking vaginal wall piercing device 51 Stopper pin 51A Lock spring 51B Head 52 Stopper lock groove 53 Vaginal wall piercing device lock release groove 100 Ovary

Claims (10)

[Claims] 1. An outer tube, comprising: an outer tube; an inner tube slidably inserted into the outer tube; and an ovariectomy tube slidably inserted into the inner tube. Has an ovarian sampling port and a support handle on the side, the inner tube has a vaginal wall piercing device at the tip, an ovarian housing at the rear of the vaginal wall piercing device, and an ovarian sampling port on the side. A vaginal wall piercing operation handle is provided behind the support handle of the outer tube, and the ovariectomy tube is provided with an ovariectomy blade at a tip thereof, and a rear end protruding rearward from the inner tube. The ovariectomy pressure plate is attached to the ovariectomy tube, a drug solution inlet is provided at the rear end of the ovariectomy tube, and the ovariectomy device of a mammal provided with a drug solution outlet on the front side of the tube, wherein the inner tube is opposed to the outer tube. Mammalian egg provided with means for temporarily fixing the position Nest removal device. 2. The ovariectomy device for a mammal according to claim 1, wherein a stopper for keeping the tip of the inner tube on the perforation side inside the outer tube is fixedly and freely released. 3. The stopper for keeping the inner tube inside the outer tube is slidably fitted in a through hole provided in the support handle in parallel with the center axis of the outer tube. A stopper lock groove into which a stopper pin is fitted is formed, and the stopper pin is slidably provided in a hole provided at a right angle to the center axis of the stopper and offset from the center axis in the fixed portion of the support handle. The ovariectomy device according to claim 2, wherein the stopper pin is provided with a lock release groove in which the stopper is fitted. 4. The ovariectomy device for a mammal according to claim 3, wherein a spring is interposed between the stopper pin and a support handle fixing portion. 5. An outer tube comprising: an outer tube; an inner tube slidably inserted into the outer tube; and an ovariectomy tube slidably inserted into the inner tube. Has an ovarian sampling port and a support handle on the side, the inner tube has a vaginal wall piercing device fixed at the tip, an ovarian receiving section at the rear of the vaginal wall piercing device, and an ovarian sampling port on the side. And a handle for crushing blood vessels, and a handle for puncturing the vaginal wall behind the support handle of the outer tube, wherein the ovariectomy tube has an ovariectomy blade at its tip and projects rearward from the inner tube. An ovariectomy pressing plate is attached to the end, a drug solution inlet is provided at the rear end of the ovariectomy tube, and in a mammalian ovariectomy device provided with a drug solution outlet behind the ovariectomy blade, a drug solution is supplied from the drug solution outlet. When the drug solution is discharged into the abdominal cavity of a mammal, the drug solution outlet is connected to an egg in the inner tube. An ovariectomy device for mammals, characterized in that a means for holding and fixing is provided at a substantially central portion of a nest collecting port. 6. A means for holding and fixing the drug solution outlet at a substantially central portion of an ovary sampling port of an inner tube comprises a lock groove formed on an outer periphery of an ovariectomy tube and a lock pin fitted to the lock groove. The lock pin has a lock release groove, and the lock pin slides in a hole provided perpendicularly to and offset from the central axis of the ovariectomy tube at the fixing portion of the vaginal wall puncturing work handle. The ovariectomy device for mammals according to claim 5, wherein the device is freely attached. 7. The ovariectomy device for a mammal according to claim 6, wherein both ends of the lock pin are expanded. 8. A means is provided for holding the drug solution outlet at a substantially central portion of an ovary sampling port of an inner tube when the drug solution flows out of the drug solution outlet into the abdominal cavity of a mammal. Item 5. The ovariectomizing device for mammals according to items 1 to 4. 9. The stopper for keeping the inner tube inside the outer tube is slidably fitted in a through hole provided in the support handle in parallel with the center axis of the outer tube. A stopper lock groove into which a stopper pin is fitted is formed, and the stopper pin is slidably provided in a hole provided at a right angle to the center axis of the stopper and offset from the center axis in the fixed portion of the support handle. The stopper pin is provided with a lock release groove in which the stopper is fitted, a lock spring is interposed between the stopper pin and a support handle fixing portion, and the drug solution outlet is connected to an ovarian sampling port of an inner tube. The means for holding and fixing at the substantially central portion of the lock comprises a lock groove formed on the outer periphery of the ovariectomy tube and a lock pin fitted therein, the lock pin having a lock release groove, The lock pin is slidably mounted in a hole provided at a fixing portion of the vaginal wall drilling handle perpendicular to the central axis of the ovariectomy tube and offset from the central axis. An ovariectomy device for a mammal according to claim 8. 10. The ovariectomy device, wherein the support handle, the blood vessel crushing operation handle, and the vaginal wall perforation operation handle are all detachable from the ovariectomy device, and these handles are provided on the ovariectomy pressing plate when the ovariectomy device is stored. The screw hole is fixed by screwing into the screw hole.
The mammalian ovariectomy device according to any one of the above.