JPH08224251A - Pincers - Google Patents

Abstract

PURPOSE: To provide pincers which are simple in constitution, are good to handle and well hold the blood vessel at the time of use. CONSTITUTION: The pincers consist of a pair of gripping parts 1, a pair of holding parts 2 for holding the blood vessel by actuation of these gripping parts 1 and holding members 4 for maintaining the holding state. Cylindrical soft caps 5 which are disposable are attachably and detachably inserted into the respective holding parts 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to forceps capable of stopping bleeding without destroying vascular tissue.

[0002]

2. Description of the Related Art Conventionally, as an example of forceps, there is a forceps shown in FIG. 6 or a technique described in Japanese Patent Laid-Open No. 63-292951. The forceps shown in FIG. 6 has a structure in which the cushion material 7 is detachably provided on the surface of the holding part that holds the blood vessel of the forceps. Further, the technique disclosed in Japanese Patent Laid-Open No. 63-292951 has a structure in which a forceps is clamped inside a clamping portion with a rubber body, and the clamping portion itself is provided with a fitting structure.

[0003]

Although not shown, the cushion member 7 of the forceps shown in FIG. 6 is formed with rubber on the outside and is provided with a protrusion inside so as to be attachable to and detachable from the reinforcing member and the holding portion of the forceps. After use of forceps such as after surgery, the forceps and the cushion material 7 are sterilized and reused. However, since the cushion material 7 cannot be easily sterilized when germs enter the inside, it has a closed structure and the cushion material can be attached to and detached from the clamp portion of the forceps. Had the drawback that it required skill and was expensive.

Further, in the forceps described in Japanese Patent Laid-Open No. 63-292951, a rubber body provided inside the holding portion is attached, and it is difficult to sterilize the inside of the rubber body. If the body itself is temporarily removable, it is necessary to increase the elasticity of the rubber body in order to use the rubber body in a stable state when using forceps. There was a possibility that miscellaneous bacteria would enter.

In recent years, in order to prevent infectious diseases, there is a tendency to use a new instrument as much as possible. In the present invention, the soft crown material is detachably attached to the holding portion of the forceps. It is an object of the present invention to use a product that has been sterilized in advance and to make it inexpensive after the use so as to be disposable.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its gist is to provide a pair of grips and a pair of gripping a blood vessel by the operation of the grips. In the forceps including the sandwiching portion and the holding member that maintains the sandwiched state, a disposable tubular soft crown material is detachably inserted into each sandwiching portion.

Further, a soft foamed material such as polyethylene, polyurethane, rubber or the like is used as the soft crown material of the forceps.

Further, the above forceps, wherein each pinching portion or the insertion member of the soft crown material is provided with a soft crown material rotation preventing shape.

Further, the present invention is characterized in that a soft crown material is provided with a non-slip shape in the longitudinal direction of the outer circumference, or the outer circumference of the soft crown material is subjected to slipping processing.

[0010]

According to the first aspect of the present invention, a tubular soft crown material is removably inserted into each holding portion, and after the soft crown material is used, it is thrown away. Therefore, it is useful to prevent nosocomial infections by producing a large amount of the soft crown material itself and subjecting it to sterilization. Further, since the soft crown material is formed in a tubular shape, it is possible to insert the blood vessel into the sandwiching portion without paying particular attention to the sandwiching surface.

Further, in the forceps according to the second aspect, a soft foamed material such as polyethylene, polyurethane, rubber or the like is used as the soft crown material of the forceps. By using these soft foams, it is possible to inexpensively manufacture a tubular soft crown material. Further, unlike the usual soft material, since the foam is formed, the soft crown material can be easily attached to the holding portion of the forceps. In particular, if the foam is formed into the shape of a closed cell, it is possible to prevent body fluid such as blood from entering the inside of the soft cap material when the forceps is used.

Further, in the forceps according to a third aspect of the present invention, each holding portion is formed by providing irregularities in each holding portion, or by making a small cut for inserting the soft crown material into the holding portion. Alternatively, the insertion of the soft crown material is provided with a soft crown material rotation preventing shape to prevent the soft crown material from rotating. This prevents the flexible capped material from rotating when the forceps are used to prevent the grip position of the blood vessel from moving, and further prevents the grip of the forceps from releasing the grip of the blood vessel.

Even if the soft crown material itself does not rotate, if the outer peripheral surface of the soft crown material slips, grasping of the blood vessel becomes insufficient as described above. In particular, when a soft foam is molded with polyethylene or the like, the outer surface of the foam becomes a smooth surface, and thus a non-slip shape is applied to the soft crown material in the longitudinal direction of the outer periphery, Alternatively, as described in claim 5, by performing a slipping process on the outer periphery of the soft cap material, the soft cap material is prevented from rotating when the forceps is used to prevent the movement of the grasping position of the blood vessel, and further the forceps. It is prevented that the grasping of the blood vessel is released from the grasping part.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view of the present invention, FIG. 2 shows a soft crown material, FIG. 2 (a) is a side view, and FIG. 2 (b) is a sectional view. Reference numeral 1 denotes a pair of grips, and a pair of gripping portions 2 that clamp a blood vessel by the operation of the gripping portion 1 have a shaft 3 on the side opposite to the gripping portion 1,
The tip is bent so that it stands up. Grip 1
A holding member 4 is provided inside the vicinity of to maintain the sandwiched state. The holding member 4 has a structure in which the teeth are extended from the respective grips 1 in opposite directions, and the holding strength of the holding portions can be changed by changing the meshing position.

As shown in FIG. 2, a tubular soft cap material 5 is detachably inserted into each holding portion. The soft crown material 5 is formed by molding polyethylene into a rod-shaped body having a diameter of 10 mm, which is a 25-fold expanded closed cell body. The outer surface of the rod-shaped body molded from this polyethylene is smooth. For this reason, for example, a polyurethane paint is applied, and the outer peripheral surface is thinly coated and slippery processed. Then, after cutting this rod-shaped member to a length of 60 mm, a notch 6 is formed from the central portion of the cut surface toward the inside of the soft crown material 5. After this, it is sterilized and sealed in two small bags, taken out from the bag at the time of use, and inserted into the holding portion 2 of the forceps. After the surgery, the used soft crown material 5 is discarded as it is and is thrown away.

If the closed-cell body is formed of the closed-cell body, blood or the like will infiltrate the soft cap material 5 at the time of surgery and the soft cap material 5 as a whole will interfere with grasping of blood vessels. This is because in the closed-cell body, the invasion of blood or the like is limited to the outermost bubbles, which does not hinder the sandwiching. Further, in the above-mentioned embodiment, the foam is 25 times, but this can be changed depending on the site of the blood vessel in which the forceps are used, and may be slightly hard foam such as 15 times foam.

The shape of the notch 6 is not limited to the − shape in the embodiment shown in FIG. 2, but may be formed in an appropriate shape such as a + shape and a similar shape of the holding portion of the forceps, but the − shape is preferable because it is easy to manufacture. .
The size of the cut 6 is preferably smaller than the width of the gripping portion 2 of the forceps. That is, the soft crown material 5
When the insert is inserted into the sandwiching portion 2, the notch 6 is pushed open to be inserted, and after the insertion, the soft cap material 5 is inserted into the inserting portion 2.
This is because it can be prevented from rotating with. The forceps described above were used for hemostasis of blood vessels in the liver, but neither hemostasis nor crush of vascular tissues was observed. Further, the position for grasping the blood vessel did not shift during the operation, and the inconvenience of the forceps did not occur.

The position where the notch 6 is provided is provided on the end face for ease of manufacturing. However, in the case of forceps having a short holding part, the notch 6 may be provided from the peripheral part as shown in FIG. good. Furthermore, in the above-described embodiment, the size of the cut is determined by the holding portion 2.
Although the rotation of the soft crown material 5 is prevented by setting it to be slightly smaller, instead of or in addition to this, the rotation preventing shape of the soft crown material may be added to the shape of the holding portion 2. For example, it is possible to prevent the rotation of the soft crown material by providing a rectangular cross-sectional shape of the sandwiching portion 2 and at the corners thereof, or to provide the sandwiching portion with uneven ridges in the longitudinal direction. In the above embodiment,
The notch 6 stops the notch before reaching the other end face from one end face, but may be provided so as to penetrate to the other end face. However, in this case, it is preferable that the shape of the sandwiching portion 2 is such that blood or the like penetrates into the sandwiching portion 2 from the end face and the soft cap material 5 does not rotate.

Further, in order to prevent slippage with a blood vessel sandwiched between the soft crowned materials 5, a slippage such as provision of uneven lines (FIG. 4) in the longitudinal direction on the outer circumference of the soft crowned material. The processed or cylindrical shape may be a cylindrical shape such as a prism or a star shape (FIG. 5) instead of the cylindrical shape as in the embodiment.

[0020]

INDUSTRIAL APPLICABILITY The present invention has a construction in which a tubular soft crown material is inserted into each holding portion, and after the soft crown material is used, it can be disposable and sterilized. By using a soft crown material, it is possible to easily sterilize only the forceps main body and reduce the cause of nosocomial infection. Also,
Since the flexible cap material is formed in a tubular shape, it is possible to insert the blood vessel into the sandwiching portion without being particularly conscious of the sandwiching surface.

The soft crown material has a simple structure and can be mass-produced at low cost. However, since the soft foam material such as polyethylene, polyurethane and rubber is used, the forceps are clamped. The part can be easily inserted into the soft crown material. Here, if the foam is formed into the shape of a closed cell, it is possible to prevent body fluid such as blood from entering the inside of the soft cap material when the forceps is used, and more stable grasping of the blood vessel can be performed.

Further, according to the invention of claim 3, the soft crown material is prevented from unnecessarily rotating, and according to the invention of claim 4 or 5, the soft crown material and the blood vessel are slipped to each other. This has the effect of preventing the grip from being released.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

2A and 2B are views showing a soft crown material used in the present invention, in which FIG. 2A is a side view and FIG. 2B is a sectional view.

3A and 3B are views showing another embodiment of the flexible capping material used in the present invention, wherein FIG. 3A is a sectional view and FIG. 3B is a plan view.

FIG. 4 is a side view showing another embodiment of the flexible capping material used in the present invention.

FIG. 5 is a side view showing another embodiment of the flexible cap material used in the present invention.

FIG. 6 is a partially cutaway perspective view showing a sandwiching portion of a conventional forceps.

[Explanation of reference numerals] 1 gripping part 2 clamping part 3 axis 4 holding member 5 soft crowned material 6 notch 7 cushion material

Claims (5)

[Claims] 1. A forceps comprising a pair of grips, a pair of grips for gripping a blood vessel by actuation of the grips, and a holding member for maintaining the gripped state. A forceps in which a flexible cap material is detachably inserted. 2. A forceps using a foam made of a soft material such as polyethylene, polyurethane, rubber or the like as the soft crown material according to claim 1. 3. The forceps according to claim 1, wherein each pinching portion or insertion member of the soft crown material is provided with a soft crown material rotation preventing shape. 4. The forceps according to claim 1, wherein the soft crown material is formed with a non-slip shape in the outer peripheral longitudinal direction. 5. The forceps according to claim 1, wherein the outer periphery of the soft crowned material is subjected to a non-slip process.