CN204394628U - A kind of scalpel - Google Patents

Abstract

The scalpel provided by the utility model includes a blade, the blade is made of ceramic material, and the blade includes a connecting part; a handle is also provided, and the handle is made of injection molding material, and the connecting part of the blade is formed by an injection molding process, and the connecting part There is a through hole on the top, and a raised ring part at the end of the blade. In the scalpel provided by the utility model, the processing of the blade and the handle is an integral molding process, the cost of the scalpel is reduced, and in the injection molding process, the blade is first placed in the mold, and the design of the through hole can facilitate the positioning of the blade and facilitate Injection molding, there is a raised ring part at the end of the blade, and the blade and handle are molded to prevent it from falling out.

Description

a scalpel

technical field

The utility model relates to a knife, in particular to a scalpel for medical surgery.

Background technique

The scalpel is a very important tool in medical surgery, which provides a strong guarantee for human health. A scalpel generally includes a blade and a handle, the blade is generally made of a metal material, and the handle is usually made of an injection moldable material.

There are currently a large number of scalpels on the market. However, the handles and blades of these scalpels are usually assembled into an integrated structure after they are manufactured into finished products. The assembly process of the handles and blades requires time and labor costs. , and if the blade is placed in the mold for injection integral molding, there is a problem that the position of the blade is difficult to determine.

Contents of the invention

The purpose of the utility model is to provide a scalpel with simple structure and accurate positioning.

In order to realize the purpose of this utility model, the scalpel provided by this utility model comprises blade, and blade is made of ceramic material, and blade comprises connecting part; The knife handle is formed by injection molding process, the connecting part has a through hole, and the tail of the blade has a protruding semi-circular part.

By adopting the above scheme, the processing of the blade and the handle is integrated into the molding process, and the cost of the scalpel is reduced. In the injection molding process, the blade is first placed in the mold, and the design of the through hole can facilitate the positioning of the blade, which is convenient for injection molding. There is a raised ring part at the tail, and the blade and handle are molded to prevent it from coming out.

A preferred solution is that the blade includes a blade and a knife back, the knife back is parallel to the length direction of the scalpel, and the knife back is a straight line structure.

By adopting the above scheme, during the injection molding process, the blade is firstly placed in the mold, and the design of the blade back as a straight structure facilitates the positioning of the blade and facilitates injection molding.

A preferred solution is that the through hole is circular.

A preferred solution is that the through hole is filled with plastic.

A preferred solution is that the knife handle has round bumps.

By adopting the above scheme, the friction of the handle of the knife can be enhanced, and medical accidents caused by sliding of fingers can be prevented.

A preferred solution is that there is a concave arc surface on the edge of the knife handle, and the concave arc surface is on the side close to the blade.

By adopting the above solution, the concave arc surface can enhance the operating comfort of the user.

A preferred solution is that, along the length direction of the knife handle, there are two kinds of scales on the knife handle, and the scales include a scale in inches and a scale in centimeters.

With the above scheme, the two units on the handle are easy to identify and are also suitable for use in different countries.

A preferred solution is that, in the direction away from the blade, the end of the handle is arc-shaped, and the thickness gradually becomes thinner.

By adopting the above solution, the arc shape can increase the auxiliary function of the scalpel in application.

A preferred solution is that there are numbers on the side of the handle.

Adopting the above scheme, the numbers can be No. 3 and No. 4, so as to enhance the user's ability to identify different types of scalpels.

A preferred solution is that for different types of surgical knives, the overall outer contour shapes of the blades are different from each other, but the shapes of the connecting parts of different blades are consistent. The above-mentioned solution is that the assembly position of the handle and the blade is the connection part, and the shape of the connection part of the blades of different sizes is consistent, which is convenient for the assembly of a set of handle molds to produce different types of blades. For example, the mold of the No. 3 handle can be Make No. 10, No. 12, No. 13, No. 15 and other blades.

Description of drawings

Fig. 1 is the front view of the embodiment of the utility model scalpel.

Fig. 2 is the structural diagram of the embodiment of the utility model scalpel.

Fig. 3 is a structural diagram of another angle of the embodiment of the scalpel of the present utility model.

Fig. 4 is the front view of the blade embodiment of the utility model scalpel.

Fig. 5 is the structural diagram of the blade embodiment of the scalpel of the present utility model.

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Detailed ways

As shown in FIGS. 1 to 5 , the scalpel of this embodiment includes a blade 10 , and the blade 10 includes a connecting portion 11 having a circular through hole 12 on the connecting portion 11 . The blade 10 includes a blade 13 and a blade back 14, the blade back 14 is parallel to the length direction of the scalpel, and the blade back 14 is a straight line structure. The tail of the blade 10 has a raised semi-circular portion 16 .

The scalpel also includes a handle 20. The handle 20 is made of injection molding material. The handle 20 has a circular bump 21. The blade 10 and the handle 20 are formed into an integrated structure through an injection molding process, that is, metal materials or ceramics are used first. Material The blade 10 is fabricated, the blade 10 is then placed on a mold and injection molded to form the handle 20 . After injection molding, the plastic 13 is filled in the through hole 12 to make the scalpel more beautiful and avoid dead ends for cleaning. There is a concave arc surface 22 on the edge of the handle 20 , and the concave arc surface 22 is on the side close to the blade 13 . Along the length direction of the knife handle 20 , there are two kinds of scales on the knife handle 20 , and the scale includes a scale in inches and a scale in centimeters. In the direction away from the blade 10, the end of the handle 20 is in the shape of a circular arc 23, and the thickness gradually becomes thinner. The handle 20 has a numeral 24 on its side.

As shown in Figure 3, the connecting portion 11 of the blade 10 is the area on the right side of the dotted line 15. In the processing and molding of the blade 10, this area, that is, the size of the connecting portion 11 is limited to the same size, and the size or shape of the blade 13 It can be adjusted arbitrarily according to the design requirements of different scalpels. Since the size of the connecting portion 11 is the same, it is beneficial for the surgical knife to inject the handle 20 at the connecting portion 11 in a unified mold to form an integrated structure.

Finally, it should be noted that the present invention is not limited to the above-mentioned embodiments, and solutions such as designing the bumps into triangles or rectangles or other patterns are also within the protection scope of the claims of the present invention.

Claims (9)

1. a scalpel, comprises,

Blade, described blade is made up of ceramic material, and described blade comprises connecting portion;

Handle of a knife, described handle of a knife is made up of injected plastics material, and it is inner that described connecting portion is arranged on described handle of a knife;

It is characterized in that:

Form described handle of a knife at the connecting portion of described blade by Shooting Technique, described connecting portion has through hole, described blade afterbody has protruding semicircular ring part.

2. scalpel according to claim 1, is characterized in that:

Described blade comprises blade and the knife back, and the described knife back is parallel with the length direction of described scalpel, and the described knife back is linear structure.

3. scalpel according to claim 1, is characterized in that:

Described through hole is circular.

4. scalpel according to claim 3, is characterized in that:

Plastics are filled with in described through hole.

5. the scalpel according to any one of Claims 1-4, is characterized in that:

Described handle of a knife has circular salient point.

6. scalpel according to claim 2, is characterized in that:

Have cancave cambered surface at the edge of described handle of a knife, described cancave cambered surface is in the side near described blade.

7. scalpel according to claim 1, is characterized in that:

Along the length direction of described handle of a knife, described handle of a knife has two kinds of scales, described scale comprise scale in units of inch and by centimetre in units of scale.

8. scalpel according to claim 1, is characterized in that:

In the direction away from described blade, the end of described handle of a knife is circular arc, and thickness is thinning gradually.

9. scalpel according to claim 1, is characterized in that:

The side of described handle of a knife has numeral number.