JPH071137Y2 - Small animal pelvic cavity expansion plate - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion plate used for expanding the pelvic cavity in small animals such as cats and dogs.

[0002]

2. Description of the Related Art Small animals such as cats and dogs often cause narrowing of the pelvic cavity. This narrowing of the pelvic cavity interferes with normal defecation and makes constipation a daily problem. Conventionally, as a means for healing the stenosis of the pelvic cavity, as shown in FIGS. 5 and 6, after the connecting portion of the pelvis 100 is separated by cutting or the like, the cut end portion thereof is cut.
A relatively wide bone graft between the cutting ends 101, 101 to carefully widen and maintain the width between 101, 101.
The threading holes 103, 103 formed by four pairs of holes are formed in both half portions of the pelvis 100 with the cut ends 101, 101 as boundaries.
The two sutures 104 are fastened to each other to pull the two halves of the pelvis 100 toward each other so that the cut ends 101, 101 and the side surface of the implant 102 are engaged with each other.

[0003]

By the way, in the case of the prior art, the bone grafts 102, 10 for the cut ends 101, 101 are to be solved.
Since the side surface 2 is not well matched, the graft 102 is easily displaced when the restoring force of the pelvis 100 and the fastening force of the suture thread 104 are received. In that case, stop the surgery, remove the implant 102 and cut or polish the end face,
There is a problem that the complicated process of interposing the cut ends 101 and 101 again is performed during the pelvic cavity dilatation operation, which makes the operation complicated.

The present invention has been made in view of the above-mentioned conventional circumstances, and the object thereof is a plate for expanding the pelvic cavity of a small animal, which can stably expand the diameter of the pelvis without causing positional displacement. To provide.

[0005]

[Means for Solving the Problems] The technical means taken to achieve the above-mentioned object is to separate small pelvic joints, such as cats and dogs, which are fitted between the separated ends of the pelvic joints after they are spread apart. A plate for expanding the pelvic cavity, the plate body being mounted between the separation ends, and the engagement receiving surface portions provided on both side edges of the plate body for immovably engaging both inner and outer surfaces of the separation ends. And a through hole portion of the binding wire which is opened in the plate body and fastened to a portion in the vicinity of both separation ends of the pelvis.

[0006]

According to the above technical means, the engagement receiving surface portions on both side edges of the plate body are firmly engaged with both inner and outer surfaces of the separated end portion of the pelvis by receiving the restoring force of the pelvis and the binding force of the binding wire. .

[0007]

The present invention is a plate for expanding the pelvic cavity of a small animal constructed as described above, and when the binding wire is fastened to the through hole formed in the plate body and the separated end part of the pelvis. Since the engaging receiving surface portion that firmly engages with both inner and outer surfaces of the separated end portion of the pelvis is provided, the plate body is not only inserted between the separated end portions of the plate body but also when the plate body is fastened with the binding wire. It is installed accurately and surely without causing misalignment. Therefore, it is not necessary to perform a pelvic cavity diameter dilatation operation while taking into account the positional deviation of the intervening members for maintaining the separation end interval, and the operation can be simplified and simplified.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. 1 to 3 and 4 show first and second embodiments of plates for expanding the pelvic cavity of a small animal of the present invention, respectively. Reference numeral 1 is a pelvic cavity expanding plate, and 2 is a pelvis.

1 to 3, the pelvic cavity expanding plate 1 of the first embodiment is a plate body 11, engagement receiving surface portions 21 provided on both side edges of the plate body 11, and the plate body 11.
It is composed of through-holes 31 ...

The plate body 11 is formed of a metal plate material or a synthetic resin plate material into a rectangular plate shape in a front view, and has a width dimension necessary for healing the pelvic cavity of a small animal such as a cat or a dog.

The engaging receiving surface portion 21 is formed in a laterally V-shape in a side view by bending the bending pieces 21a, 21a alternately at equal intervals from both side edges of the plate body 11 in opposite directions. .

Three pairs of through holes 31 are formed in the plate body 11 in the vicinity of the engaging receiving surface portions 21, 21 at appropriate intervals.

The pelvic cavity expanding plate 1 of this embodiment is attached to the pelvis 2 of a small animal such as a cat or dog through the following surgical procedure. First, an animal to be operated (cat in this example) is subjected to general anesthesia, captured in a supine position, sterilized, and the like, and then the skin on the stitched portion of the pubis 2a is incised, and the stitched portion of the pubis 2a is cut. Is incised using a predetermined tool (not shown) such as a bone saw. The cut ends 12, 12 (hereinafter, referred to as separation ends 12, 12) are gradually expanded with a fenestration device (not shown). Next, holes 22 are formed at appropriate intervals in the vicinity of the separated ends 12, 12 of the pubis 2a.
, And the binding wire 3 is passed through the hole 2b of the pelvis 2 in advance, and the binding wire 3 is passed through the through hole 31.
The pelvic cavity-expanding plate 1 loosely passed through the upper part of the pelvic cavity-expanding plate 1 is formed in a laterally V-shaped side view of both side edges.
The front and rear inclined surface portions 21a and 21a are mounted between the separation ends 12 and 12 in a state of being engaged with the inner and outer surfaces 12a and 12b of the separation ends 12 and 12, respectively. At this time, since the front and rear inclined surfaces 21a, 21a of the engagement receiving surface portions 21, 21 are firmly engaged with the inner and outer both surfaces 12a, 12b of the separation end portions 12, 12 by the restoring force of the pelvis 2, the pelvic cavity expanding plate. No. 1 does not shift in the front-rear direction and does not fall. Then, after binding the binding wires 3 ..., the pelvic cavity expansion plate 1 is gently shaken to check if there is any deviation. After the left and right muscles are brought close to each other and sutured, the skin is further sutured to perform an operation. Finish.

Next, the second embodiment will be described. In this embodiment, as shown in FIG. 4, two metal plates 41, 41 made of metal or synthetic resin are polymer-bonded to form a plate body 11. , The upper and lower plate members 41, 41 of the plate body 1 are formed with through holes 31 of the binding wire 3, and the side edges of the plate members 41, 41 are bent in opposite directions over the entire length to form side surfaces. The engaging receiving surface portions 21 and 21 having the front and rear inclined surfaces 21a and 21a having a V-shape when viewed are formed.

[Brief description of drawings]

FIG. 1 is a perspective view of a pelvic cavity expansion plate for a small animal according to a first embodiment.

FIG. 2 is a front view showing a mounted state of the pelvic cavity expanding plate of FIG.

3 is an enlarged sectional view taken along line (3)-(3) of FIG.

FIG. 4 is a perspective view of a plate for expanding a pelvic cavity of a small animal according to a second embodiment.

FIG. 5 is a front view showing a mounted state of a conventional pelvic cavity expansion plate for a small animal.

6 is an enlarged sectional view taken along line (5)-(5) of FIG.

[Explanation of symbols]

1: Pelvic cavity expansion plate 11: Plate body 21: Engaging receiving surface part 31: Through hole part 2: Pelvis 3: Tightening wire rods 12, 12: Separation end part (cut end part)

Claims (1)

[Scope of utility model registration request] 1. A plate for expanding the pelvic cavity of a small animal such as a cat or a dog, which is mounted between separated ends of a pelvic joint portion after being separated and spread, the plate being mounted between the separated ends. Body, an engagement receiving surface portion provided on both side edges of the plate body for immovably engaging both inner and outer surfaces of the separating ends, and fastened to a portion of the pelvis near the separating ends of the pelvis. A plate for expanding the pelvic cavity of a small animal, characterized in that it is formed of a through hole of a binding wire.