JPH0428570Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention is a medical scalpel consisting of a disposable disposable blade and a handle, and a scalpel with an attachment device for easily attaching the disposable blade to the handle. The present invention relates to a disposable blade, and more specifically, to a disposable blade that protects fingertips and the like from the sharp blade of a disposable blade.

<Prior Art> FIG. 6 shows an exploded perspective view of a medical scalpel consisting of a disposable blade 50 and a handle 51, where 52 is the blade part and 53 is the handle 51.
The long grooves 55 are provided on both sides of the replaceable blade engaging portion 54.
and both inner edges 56 of the elongated hole 53 can be engaged with each other. Reference numeral 57 denotes an elongated hole that is provided continuously with the elongated hole 53 and has the same width as the width of the replaceable blade engaging portion 54 .

The replaceable blade 50 is usually sterile packaged with aluminum foil or synthetic resin film, etc., and the package is opened before surgery or dissection, and the handle 51 is replaced with the replaceable blade 50 by hand or with forceps. It was attached to the blade engaging portion 54. That is, the replaceable blade 50 is held at an appropriate position with forceps, and the replaceable blade engaging portion 54 is inserted into the long strip hole 57 of the replaceable blade from the back side of the paper in FIG. 6 while bending the replaceable blade. , the elongated grooves 55, 55 provided on both sides of the replaceable blade engaging portion 54 are adapted to both inner edges 56, 56 of the elongated hole 53 of the replaceable blade 50,
The replaceable blade is installed by further inserting the replaceable blade until the end of the replaceable blade engaging portion 54 contacts the end of the elongated hole 53.

FIG. 7 is a plan view showing a state in which the replaceable blade 50 is attached to the handle 51.

When removing the replaceable blade, the replaceable blade 50 can be pulled out using forceps by curving the base of the blade.

Furthermore, as another conventional example, Utility Model 53-79500
There is a detachable tool for a replaceable blade as described in the above publication.

<Problems to be solved by the invention> In the conventional attachment device, the blade portion of the replaceable blade is exposed when it is attached, so there is a risk of injuring the fingertips, etc. Since the replaceable blade is made of stainless steel and has fairly strong elasticity, it requires considerable force to bend and attach the replaceable blade, and the risk of doing so is quite high.

In addition, replacement blades are usually individually packaged in a sterilized manner, but if the attachment device can also be sterilized, the replacement blade can be attached by simply opening the package, and the attachment device can be sterilized. is also no longer necessary.

As described above, the present invention aims to provide a disposable blade with a fitting that prevents injury to the fingertips and the like when the blade is attached and is disposable by being sterilized and packaged together with the blade.

<Means for solving the problem> In order to solve the above problem, the present invention provides a
A stepped portion 4 is provided in the stepped portion 4, a hole 8 into which the cutting edge portion of the scalpel blade 5 can be inserted is provided in the substantially vertical surface 7 of the stepped portion 4, and the cutting edge portion of the scalpel blade 5 is inserted into the hole 8. A mounting tool main body 1 on which a scalpel blade 5 can be placed on the upper surface 3
and a cutting plate 2 connected to an appropriate position of the stepped portion 4 so as to be able to be cut by pressing,
A scalpel spare blade 5 is held between the mounting tool main body 1 and the cutting plate 2, and the upper surface 3 of the mounting tool main body 1 corresponds to the elongated hole 10 provided in the scalpel replacement blade 5.
The lower surface 16 of the cutting plate 2 has a long groove 11 into which a rod-shaped replaceable blade engaging portion of a scalpel handle can be inserted.
17 and cut the cutting plate 2,
A space 13 is formed between the lower surface of the female replaceable blade 5 and the upper surface 3 of the attachment main body 1 to the extent that the female replaceable blade 5 can be curved by pressing.

<Function> In the female spare blade with attachment device according to the present invention, by holding it with one hand and pressing the cutting plate with your finger, the cutting plate can be cut from the attachment device body at its connecting portion. Then, the replaceable blade is pushed into a curve by the cutting plate, and in this state, the rod-shaped replaceable blade engaging part of the handle for the replaceable blade knife is engaged with the long hole of the replaceable blade, and the replaceable blade is attached to the handle. be done. The cutting plate can then be removed and the scalpel can be removed from the appliance body.

<Example> An example will be described below based on the attached drawings.

1 to 4 illustrate one embodiment of the present invention. FIG. 1(a) is an overall perspective view, and FIG. 1(b) is a front view thereof. Reference numeral 1 denotes a mounting tool main body, and 2 a cutting plate, both of which are connected at the vertical plane of a stepped portion 4 provided on the upper surface 3 of the mounting tool main body 1. The connection is bonded so that it can be easily cut by pressing with a fingertip or the like. In addition, both materials are made of hard synthetic resin. These mounting tool main body 1 and cutting plate 2 provide a replacement blade 5.
can be held diagonally so that its base is in a high position.

FIG. 2 is a perspective view of only the attachment main body 1,
A hole 8 into which the cutting edge portion of the replaceable blade 5 can be inserted is provided in the vertical surface 7 of the stepped portion 4, and the upper surface 3 of the attachment main body 1 is formed as a concave curved surface. Reference numeral 9 denotes a support surface that supports the base side of the replaceable blade 5. Since the support surface 9 is formed at a high position on the upper surface 3 of the attachment main body 1, the replaceable blade 5 is not shown in FIG. It is held diagonally as shown. Furthermore, a long groove 11 is formed on the upper surface 3 of the mounting tool main body 1 at a position corresponding to the long hole 10 of the replaceable blade 5. The long groove is for inserting the rod-shaped replaceable blade engaging portion of the handle. Support surface 9
A recess 12 for determining the position of the base of the replaceable blade 5 is provided in the portion as required.

FIG. 3A shows a central longitudinal sectional view of this embodiment, and FIG. be.

As shown in FIG. 3A, the cutting edge of the replaceable blade 5 is inserted into the hole 8, the base is supported by the support surface 9, and the replaceable blade is supported by the cutting plate 2 and the attachment main body 1. It is held diagonally. At this time, a space 13 must be provided between the lower surface of the replaceable blade 5 and the upper surface 3 of the attachment main body 1. In this embodiment, in order to provide the space 13, the upper surface 3 of the attachment main body 1 is formed with a concave curved surface. In order to provide the space 13, the upper surface 3 does not necessarily have to be formed into a concave curved surface. It is sufficient if there is enough space to allow 5 to curve.

FIG. 3B shows the state in which the replaceable blade is curved, and the cutting plate 2 is
The lower surface 1 of the cutting plate 2 is cut.
The holding portion 6 curves the replaceable blade 5. The holding portion does not need to be specially formed, and the lower surface 16 may be formed into a convex curved surface or the like. Further, a long groove 17 is also provided in the lower surface 16 of the cutting plate 2 at a position corresponding to the long hole of the replaceable blade. The rod-shaped replaceable blade engaging portion of the scalpel handle is inserted through the long groove 17, and the replaceable blade 5 is inserted.
It can be easily engaged with the elongated hole.

FIG. 4A is a cross-sectional explanatory diagram taken along the - line in FIG. 3A,
FIG. 4B is an explanatory cross-sectional view along the line '--' of FIG. 3A.

In FIG. 4A, a hole 8 is provided in the vertical surface 7 of the stepped portion of the attachment main body 1, and the cutting edge of the replaceable blade 5 is inserted into the hole 8.

In FIG. 4B, it is shown that long grooves 11 and 17 are formed in the upper surface 3 of the attachment main body 1 and the lower surface 16 of the cutting plate 2 in the portions corresponding to the long holes in the replaceable blade 5, respectively. ing. These elongated grooves 11 and 17 allow the rod-shaped replaceable blade engaging portion of the scalpel handle to be easily inserted and engaged with the elongated hole of the replaceable blade 5.

FIG. 5 shows an overall perspective view of another embodiment. In this embodiment, the planar dimensions of the cutting plate 2 are formed to be somewhat larger than the corresponding attachment main body 1, and 3 other than the side connected to 1
By extending the periphery of the side downward, the corresponding periphery of the attachment main body 1 can be covered.

Although the embodiments have been described above, the material, dimensions, etc. of the design can be changed arbitrarily, and the connection between the attachment main body and the cutting plate can be easily cut by pressure, such as adhesive or welding glue. Anything that can be used is fine. The holding of the replaceable blade between the mounting tool main body and the cutting plate does not necessarily require the base side of the replaceable blade to be in a high position, and may be held horizontally. Further, the present invention can be made disposable, and furthermore, the whole can be easily packaged in a sterile manner.

<Effects of the invention> The present invention, which has the above configuration, has a replaceable blade and a mounting tool set as a set, and at least the blade part of the replaceable blade is completely covered by the mounting tool. There is absolutely no possibility of injury to the fingertips etc. when installing the spare blade, and it is extremely safe.

Moreover, it becomes possible to use the mounting tool as a disposable blade together with the disposable blade.

It is also possible to easily sterilize and package a replacement blade with a mounting device, in which case there is no need to disinfect the mounting device itself, and it is possible to use it for surgery, etc. immediately after attaching the replacement blade to the handle. Become.

As described above, the present invention has remarkable effects and is highly practical.

[Brief explanation of the drawing]

1 to 4 illustrate a first embodiment of the present invention, in which FIG. 1A is an overall perspective view, FIG. 1B is a front view, and FIG. 2 is a perspective view of the attachment device body. , 3rd
Figure A is a central vertical cross-sectional view, Figure 3 B is a central vertical cross-sectional view showing the state in which the spare blade is curved, and Figure 4 A is a central vertical cross-sectional view.
Fig. 4B is an explanatory cross-sectional view taken along the line '--' in Fig. 3A, Fig. 5 is an overall perspective view showing another embodiment, and Fig. 6 is an explanatory view of a replaceable blade for a female. FIG. 7 is an exploded perspective view of the handle, and FIG. 7 is a plan view illustrating a state in which the female replaceable blade is attached to the handle. Symbols in the figure: 1... Mounting device main body, 2... Cutting plate, 3... Upper surface, 4... Step part, 5... Spare blade for female, 7... Vertical surface, 8... Hole, 10... ...Long hole, 11, 17...Long groove, 13...Space, 16
...Bottom surface.

Claims (1)

[Scope of utility model registration request] A step portion 4 is provided on the upper surface 3, and a substantially vertical surface 7 of the step portion 4 is provided.
A hole 8 into which the cutting edge of the scalpel blade 5 can be inserted is provided, the blade edge of the scalpel blade 5 can be inserted into the hole 8, and the scalpel blade 5 can be placed on the top surface 3. It consists of a tool main body 1 and a cutting plate 2 connected to an appropriate position of the stepped portion 4 so as to be able to be cut by pressing, and a scalpel spare blade 5 is held between the tool main body 1 and the cutting plate 2. , an attachment main body 1 corresponding to the elongated hole 10 provided in the female spare blade 5
The upper surface 3 and the lower surface 16 of the cutting plate 2 are formed with long grooves 11 and 17, respectively, into which the rod-shaped replaceable blade engaging portion of the scalpel handle can be inserted.
A female replacement knife with a mounting tool is provided in which a space 13 large enough to allow the scalpel replacement blade 5 to curve is formed between the lower surface of the scalpel replacement blade 5 and the upper surface 3 of the mounting tool main body 1 by cutting and pressing. blade.