CN114010274B

CN114010274B - Scalpel for doctors in cardiac intensive care unit and production process thereof

Info

Publication number: CN114010274B
Application number: CN202111354939.4A
Authority: CN
Inventors: 张欢欢
Original assignee: Zhengzhou No 7 People's Hospital
Current assignee: Zhengzhou No 7 People's Hospital
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-07-29
Anticipated expiration: 2041-11-16
Also published as: CN114010274A

Abstract

The invention belongs to the technical field of scalpels, and particularly relates to a scalpel for doctors in a cardiac intensive care unit and a production process thereof. According to the scalpel for the doctor in the cardiac intensive care unit and the production process of the scalpel, the working part and the connecting part are respectively arranged on the surface of the scalpel base body, when the scalpel is used, the scalpel base body is made of zirconia, alumina powder, magnesia, zinc oxide, yttrium oxide and chitin, the production and preparation cost of the scalpel base body is reduced, and the comprehensive use performance of the scalpel is improved, so that the problem that the existing high-performance scalpel needs to use high-performance metal or alloy materials, the manufacturing cost of the scalpel is high, and particularly, the scalpel for the doctor in the cardiac intensive care unit is always used once, and the use cost is higher is solved.

Description

Scalpel for doctors in cardiac intensive care unit and production process thereof

Technical Field

The invention relates to the technical field of scalpels, in particular to a scalpel for doctors in a heart intensive care unit and a production process thereof.

Background

The scalpel is a common medical instrument, is a very important tool in medical surgery in particular, and provides a powerful safeguard for the health career of human beings; a scalpel is typically composed of a blade and a handle. The blade is usually provided with a cutting edge and a mounting groove butted with the scalpel handle, and the blade is usually made of pure titanium, titanium alloy, stainless steel or carbon steel and is generally disposable. When in dissection, the knife edge is used for cutting the skin and the muscle, the knife tip is used for repairing the blood vessel and the nerve, and the knife handle is used for blunt separation. And selecting a blade and a knife handle of a proper type according to the size of the wound. Because the common surgical knife has the characteristic of zero damage to tissues after cutting, the surgical knife can be applied to various operations, but the wound surface bleeding after cutting is active and the surgical knife is applied to the operations with more bleeding in a control mode.

At present, most of scalpels are made of metal materials, and the hardness, wear resistance, oxidation resistance and other performances of the scalpels in use are completely limited by the metal materials, so that the existing high-performance scalpels are required to be made of high-performance metal or alloy materials, the manufacturing cost of the scalpels is high, and particularly, the scalpels for doctors in a cardiac intensive care unit are usually disposable scalpels, so that the use cost is high, and the scalpels for doctors in the cardiac intensive care unit and the production process thereof are required.

Disclosure of Invention

The invention provides a scalpel for a cardiac intensive care unit doctor and a production process thereof, and aims to solve the technical problems that the manufacturing cost of the scalpel is high due to the fact that the existing high-performance scalpel needs to use high-performance metal or alloy materials, and the use cost is high due to the fact that a disposable scalpel is often used for the cardiac intensive care unit doctor.

The scalpel comprises a scalpel base body, wherein the surface of the scalpel base body is respectively provided with a working part and a connecting part, the surface of the working part is fixedly connected with anti-suction convex points, the anti-suction convex points are symmetrically and uniformly distributed on the surface of the working part by taking the axis of the working part as the center, the surface of the working part is fixedly provided with connecting grooves, the two connecting grooves are symmetrically distributed by taking the axis of the scalpel base body as the center, and the inner wall of each connecting groove and the surface of each anti-suction convex point are fixedly connected with reinforcing layers;

the surface of work portion and the surface of enhancement layer all are provided with cutting edge portion, the fixed connecting hole of having seted up in the surface of connecting portion.

Preferably, the scalpel substrate is made of a ceramic material, and the nano coating is arranged inside the enhancement layer.

Preferably, the production process of the scalpel for the doctor in the cardiac intensive care unit comprises the following steps of preparing a scalpel substrate;

step two, arranging a connecting groove on the scalpel base body prepared in the step one through polishing equipment, avoiding the anti-suction salient points during arrangement, performing rough grinding treatment on the inner wall of the connecting groove, and arranging a connecting hole;

step three, reinforcement treatment, namely fixedly connecting the reinforcement layer with the inner wall of the connecting groove;

and step four, manufacturing a cutting edge part, and polishing and edging the cutting part through a polishing device.

Preferably, the preparation of the scalpel base in the first step comprises the following steps:

s1, preparing raw materials, which comprise the following raw materials in parts by weight,

31-35 parts of zirconium oxide;

41-44 parts of alumina powder;

9-13 parts of magnesia;

6-8 parts of zinc oxide;

5-7 parts of yttrium oxide;

3-6 parts of chitin.

s2, mixing ingredients, namely, after ball milling, feeding the raw materials prepared in the step S1 into a reaction kettle for heating, stirring and mixing, wherein the heating temperature is 30-45 ℃, the stirring speed is 80-120 r/min, and after uniformly stirring and mixing, adding water, stirring and mixing to prepare blank mud for later use.

and S3, pressing a green body, namely putting the mixture stirred and mixed in the step S2 into a scalpel base die for molding and pressing to prepare the green body.

s4, sintering and forming, namely sintering and forming the blank prepared by the S3;

during sintering, firstly, stacking the green bodies orderly, and sending the green bodies into a high-temperature furnace, wherein during sintering, the initial temperature in the furnace is 80-90 ℃, the sintering temperature is 800-900 ℃, the heating rate is 80 ℃/h, and after the sintering temperature reaches 800-900 ℃, the temperature is kept for 5-6 hours;

after the heat preservation is carried out for 5-6 hours, the temperature in the furnace is raised and sintered at the temperature of 1800-plus-one 2200 ℃ at the temperature raising speed of 120 ℃/h, the temperature is preserved for 1-1.5 hours after the temperature is raised to 1800-plus-one 2200 ℃, then the temperature is naturally reduced to 70-80 ℃, the temperature is sent into a cooling chamber for accelerated temperature reduction, and the temperature of the cooling chamber is kept at 15-18 ℃.

Preferably, in the third step, the reinforcing layer is formed by connecting the nano coating layer with the inner wall of the connecting groove by using a vapor deposition process, so that the nano film coating layer is formed on the surface of the working part.

Preferably, the cutting edge part is manufactured in the fourth step, and the cutting edge part is manufactured by polishing the surface of the working part and the surface of the reinforcing layer coated on the surface of the working part by using a polishing device.

The beneficial effects of the invention are as follows:

the surface through setting up the scalpel base member is provided with work portion and connecting portion respectively, when using, adopt zirconia, alumina powder, magnesite, zinc oxide, yttrium oxide and chitin preparation through the scalpel base member, reduce the production preparation cost of scalpel base member, and improve the comprehensive performance of scalpel, thereby solved current high performance scalpel and need use high performance metal or alloy material, the cost of manufacture that leads to the scalpel is high, especially for heart intensive care unit doctor's scalpel, often all use disposable scalpel, lead to the higher problem of use cost.

Drawings

FIG. 1 is a schematic view of a scalpel for a doctor in a cardiac intensive care unit and a manufacturing process thereof according to the present invention;

fig. 2 is a perspective view of a basic structure of a scalpel for doctors in a cardiac intensive care unit and a production process thereof.

In the figure: 1. a scalpel base; 101. a working part; 102. a connecting portion; 103. anti-suction salient points; 104. connecting grooves; 105. an enhancement layer; 106. a cutting edge part; 107. and connecting the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a scalpel for doctors in cardiac intensive care units and a production process thereof, the scalpel comprises a scalpel base body 1, wherein a working part 101 and a connecting part 102 are respectively arranged on the surface of the scalpel base body 1, anti-suction salient points 103 are fixedly connected to the surface of the working part 101, a plurality of anti-suction salient points 103 are symmetrically and uniformly distributed on the surface of the working part 101 by taking the axis of the working part 101 as the center, connecting grooves 104 are fixedly arranged on the surface of the working part 101, the two connecting grooves 104 are symmetrically distributed by taking the axis of the scalpel base body 1 as the center, and reinforcing layers 105 are fixedly connected to the inner wall of the connecting grooves 104 and the surface of the anti-suction salient points 103;

further, the suction prevention protrusions 103 prevent skin and flesh at the cutting portion from being sucked to the surface of the scalpel when the scalpel cuts during the operation of the scalpel, thereby preventing the skin and flesh tissue from being pulled and damaged at the cutting opening portion when the scalpel moves for cutting.

The scalpel base body 1 is made of ceramic materials, and the nano coating is arranged inside the reinforcing layer 105;

furthermore, the nano coating refers to an advanced process of a nano nontoxic coating and a nano coating technology with high technological content, and a nano phase is added in the wear-resistant coating with high hardness, so that the hardness and wear resistance of the coating can be further improved, and higher toughness is maintained, thereby having the effect of improving the use performance of the whole scalpel.

The surface of the working part 101 and the surface of the reinforcing layer 105 are both provided with cutting edge parts 106, and the surface of the connecting part 102 is fixedly provided with a connecting hole 107;

further, the connecting hole 107 has the effect of facilitating the installation and connection of the scalpel and the scalpel handle.

The production process of the scalpel for doctors in the heart intensive care unit comprises the following steps of preparing a scalpel substrate 1;

in the first step, a scalpel base body 1 is prepared, and the method comprises the following steps:

31-35 parts of zirconium oxide;

41-44 parts of alumina powder;

9-13 parts of magnesia;

6-8 parts of zinc oxide;

5-7 parts of yttrium oxide;

3-6 parts of chitin.

Further, chitin, also called chitin or chitin, is a polysaccharide substance extracted from the shells of marine crustaceans, and has a chemical formula of (C8H13O5N) n. Chitin is light beige to white, soluble in concentrated hydrochloric acid, phosphoric acid, sulfuric acid and acetic acid, insoluble in alkali and other organic solvents, and also insoluble in water. Chitosan chitosans, deacetylated derivatives of chitin, are insoluble in water and soluble in partial dilute acid, and chitin is added into the raw materials for preparing the scalpel substrate 1, so that the antibacterial property of the scalpel is improved, and the effect of better preventing the scalpel from infecting skin and meat tissues during cutting is achieved.

Further, when the ingredients are mixed, the raw materials are heated and stirred, so that the water absorption and the water absorption speed of the powder raw materials are increased after the raw materials are uniformly stirred, the raw materials are stirred and mixed into the blank mud through adding water, the preparation time of the blank mud is shortened, and the preparation efficiency of the blank mud and the scalpel base body 1 is improved.

and S3, pressing a green body, namely putting the mixture stirred and mixed in the step S2 into a scalpel base body 1 mould for molding and pressing to prepare the green body.

Step two, opening a connecting groove 104 of the scalpel base body 1 prepared in the step one through polishing equipment, avoiding the anti-suction salient point 103 during opening, performing rough grinding treatment on the inner wall of the connecting groove 104, and opening a connecting hole 107;

step three, reinforcement treatment, namely fixedly connecting the reinforcement layer 105 with the inner wall of the connecting groove 104;

in the third step, the reinforcing layer 105 is formed by connecting the nano coating with the inner wall of the connecting groove 104 by adopting a vapor deposition process, so that the nano film coating is formed on the surface of the working part 101;

the vapor deposition technology is a new technology which utilizes physical and chemical processes generated in vapor phase to change the surface composition of a workpiece and form a metal or compound coating with special properties (such as an ultra-hard wear-resistant layer or special optical and electrical properties) on the surface. The vapor deposition is usually performed by coating the surface of the workpiece with a layer of a compound of a transition group element (Ti, V, Cr, Zr, Mo, Ta, Nb, Hf) with carbon, nitrogen, oxygen and boron to a thickness of about 0.5-10 μm. Vapor deposition can be classified into two broad categories, Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD), according to the nature of the process. Vapor deposition is one of new techniques for strengthening the surface of a mold, and is widely applied to surface hardening treatment of various molds, and the deposition layer mainly applied is TiC and TiN;

In addition, the coating prepared by the vapor deposition technology also has very high hardness, low friction coefficient and self-lubricating property, so the wear resistance is good;

and the coating has high melting point and good chemical stability, and the solubility of the matrix metal in the coating is small, and the friction coefficient is low, so that the coating has good anti-adhesive wear capability. The tendency of cold welding and occlusion is very small in use, and TiN is better than TiC;

and the coating has the characteristics of stronger corrosion resistance and good atmospheric oxidation resistance.

Manufacturing a cutting edge part 106, and polishing and edging the cutting edge part through a polishing device;

in the fourth step, the cutting edge portion 106 is manufactured by polishing and edging the surface of the working portion 101 and the surface of the reinforcing layer 105 covering the surface of the working portion 101 by using a polishing device.

The surface through setting up scalpel base member 1 is provided with work portion 101 and connecting portion 102 respectively, when using, adopt zirconia, alumina powder, magnesite, zinc oxide, yttrium oxide and chitin preparation through scalpel base member 1, reduce the production preparation cost of scalpel base member 1, and improve the comprehensive performance of scalpel, thereby it needs to use high-performance metal or alloy material to have solved current high performance scalpel, lead to the cost of manufacture of scalpel to be high, especially for heart intensive care unit doctor's scalpel, often all use disposable scalpel, lead to the higher problem of use cost.

Example one

A production process of a scalpel for doctors in a heart intensive care unit comprises the following steps of preparing a scalpel base body 1;

31 parts of zirconium oxide;

41 parts of alumina powder;

9 parts of magnesia;

6 parts of zinc oxide;

5 parts of yttrium oxide;

and 3 parts of chitin.

and S2, mixing ingredients, namely, after ball milling, feeding the raw materials prepared in the step S1 into a reaction kettle for heating, stirring and mixing, wherein the heating temperature is 30 ℃, the stirring speed is 80 r/min, and after uniformly stirring and mixing, adding water, stirring and mixing to prepare blank mud for later use.

during sintering, firstly stacking the green bodies neatly, and feeding the green bodies into a high-temperature furnace, wherein during sintering, the initial temperature in the furnace is 80 ℃, the sintering temperature is 800 ℃, the heating rate is 80 ℃/h, and after the sintering temperature reaches 800 ℃, the green bodies are kept warm for 5 hours;

After the temperature is kept for 5 hours, the temperature in the furnace is raised and sintered, the temperature of the temperature raising and sintering is 1800 ℃, the temperature raising speed is 120 ℃/h, the temperature is kept for 1 hour after the temperature is raised to 1800 ℃, then the temperature is naturally reduced to 70 ℃, the temperature is sent into a cooling chamber for accelerated cooling, and the temperature of the cooling chamber is kept at 15 ℃.

Example two

33 parts of zirconium oxide;

42 parts of alumina powder;

11 parts of magnesia;

7 parts of zinc oxide;

6 parts of yttrium oxide;

4 parts of chitin.

In the first step, the preparation of the scalpel base body 1 comprises the following steps:

s2, mixing ingredients, namely, after ball milling, feeding the raw materials prepared in the step S1 into a reaction kettle for heating, stirring and mixing, wherein the heating temperature is 40 ℃, the stirring speed is 100 r/min, and after uniformly stirring and mixing, adding water, stirring and mixing to prepare blank mud for later use.

during sintering, firstly stacking the green bodies orderly, and sending the green bodies into a high-temperature furnace, wherein during sintering, the initial temperature in the furnace is 85 ℃, the sintering temperature is 850 ℃, the heating rate is 80 ℃/h, and after the sintering temperature reaches 850 ℃, the temperature is kept for 5.5 hours;

After the temperature is kept for 5.5 hours, the temperature in the furnace is raised and sintered, the temperature is raised and sintered at 2000 ℃, the temperature raising speed is 120 ℃/h, the temperature is kept for 1.25 hours after the temperature is raised to 2000 ℃, then the temperature is naturally reduced to 75 ℃, the temperature is sent into a cooling chamber for accelerated cooling, and the temperature of the cooling chamber is kept at 16 ℃.

step three, enhancement treatment, namely fixedly connecting the enhancement layer 105 with the inner wall of the connecting groove 104;

and the coating has high melting point and good chemical stability, and the solubility of the matrix metal in the coating is small, and the friction coefficient is low, so that the coating has good anti-adhesive wear capability. The tendency of cold welding and occlusion is very small when in use, and TiN is better than TiC;

EXAMPLE III

35 parts of zirconium oxide;

44 parts of aluminum oxide powder;

13 parts of magnesia;

8 parts of zinc oxide;

7 parts of yttrium oxide;

6 parts of chitin.

s2, mixing ingredients, namely, after ball milling, feeding the raw materials prepared in the step S1 into a reaction kettle for heating, stirring and mixing, wherein the heating temperature is 45 ℃, the stirring speed is 120 r/min, and after uniformly stirring and mixing, adding water, stirring and mixing to prepare blank mud for later use.

and S3, pressing a green body, namely putting the mixture stirred and mixed in the step S2 into a mould of the scalpel base body 1 for molding and pressing to obtain the green body.

during sintering, firstly, stacking the green bodies neatly, sending the green bodies into a high-temperature furnace, wherein during sintering, the initial temperature in the furnace is 90 ℃, the sintering temperature is 900 ℃, the heating rate is 80 ℃/h, and after the sintering temperature reaches 900 ℃, the temperature is kept for 6 hours;

After the heat preservation is carried out for 6 hours, the temperature in the furnace is raised and sintered, the temperature is 2200 ℃ and the temperature raising speed is 120 ℃/h, the temperature is raised to 2200 ℃, the heat preservation is carried out for 1.5 hours, then the temperature is naturally reduced to 80 ℃, the temperature is sent into a cooling chamber for accelerated cooling, and the temperature of the cooling chamber is kept at 18 ℃.

Step two, opening a connecting groove 104 of the scalpel base body 1 prepared in the step one through polishing equipment, avoiding the anti-suction convex point 103 during opening, performing rough grinding treatment on the inner wall of the connecting groove 104, and opening a connecting hole 107;

and the coating has very high melting point and good chemical stability, the solubility of the matrix metal in the coating is small, and the friction coefficient is low, so that the coating has very good anti-adhesive wear capability. The tendency of cold welding and occlusion is very small when in use, and TiN is better than TiC;

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A production process of a scalpel for doctors in a cardiac intensive care unit is characterized in that:

preparing a scalpel base body (1), wherein the scalpel base body (1) is composed of a working part (101), a connecting part (102), an anti-suction salient point (103), a connecting groove (104), a reinforcing layer (105), a cutting edge part (106) and a connecting hole (107);

in the first step, the preparation of the scalpel base body (1) comprises the following steps:

31-35 parts of zirconium oxide;

41-44 parts of alumina powder;

9-13 parts of magnesia;

6-8 parts of zinc oxide;

5-7 parts of yttrium oxide;

3-6 parts of chitin;

s2, mixing ingredients, namely, after ball milling, feeding the raw materials prepared in the step S1 into a reaction kettle for heating, stirring and mixing, wherein the heating temperature is 30-45 ℃, the stirring speed is 80-120 r/min, and after uniformly stirring and mixing, adding water, stirring and mixing to prepare blank mud for later use;

in the first step, a scalpel base body (1) is prepared, and the method comprises the following steps:

s3, pressing a green body, namely putting the mixture stirred and mixed in the step S2 into a scalpel base body (1) mould for molding and pressing to prepare the green body;

after the heat preservation is carried out for 5-6 hours, the temperature in the furnace is raised and sintered at the temperature of 1800-plus-one-heat 2200 ℃ at the temperature raising speed of 120 ℃/h, the temperature is preserved for 1-1.5 hours after the temperature is raised to 1800-plus-one-heat 2200 ℃, then the temperature is naturally reduced to 70-80 ℃, the temperature is sent into a cooling chamber for accelerated temperature reduction, and the temperature of the cooling chamber is kept at 15-18 ℃;

Step two, arranging a connecting groove (104) on the scalpel base body (1) prepared in the step one through polishing equipment, avoiding the anti-suction salient points (103) during arrangement, performing rough and coarse grinding treatment on the inner wall of the connecting groove (104), and arranging a connecting hole (107);

step three, enhancement treatment, namely fixedly connecting the enhancement layer (105) with the inner wall of the connecting groove (104);

manufacturing a cutting edge part (106), and polishing and edging the cutting edge part through a polishing device;

in the third step, the reinforcing layer (105) is formed by connecting the nano coating with the inner wall of the connecting groove (104) by adopting a vapor deposition process so as to form a nano film coating on the surface of the working part (101);

and in the fourth step, the cutting edge part (106) is manufactured by grinding and edging the surface of the working part (101) and the surface of the reinforcing layer (105) coated on the surface of the working part (101) through a grinding device.

2. The scalpel prepared by the scalpel production process for the cardiac intensive care unit doctor according to claim 1, is characterized in that: the scalpel comprises a scalpel base body (1), wherein the scalpel base body (1) is composed of a working part (101), a connecting part (102), an anti-suction salient point (103), a connecting groove (104), a reinforcing layer (105), a cutting edge part (106) and a connecting hole (107);

The working part (101) and the connecting part (102) are arranged on the surface of the scalpel base body (1), the surface of the anti-suction salient point (103) is fixedly connected with the surface of the connecting part (102), and the anti-suction salient points (103) are symmetrically and uniformly distributed on the surface of the working part (101) by taking the axis of the working part (101) as the center;

the connecting grooves (104) are fixedly arranged on the surface of the working part (101), and the two connecting grooves (104) are symmetrically distributed by taking the axis of the scalpel base body (1) as the center;

the surface of the reinforcing layer (105) is fixedly connected with the inner wall of the connecting groove (104) and the surface of the anti-suction salient point (103) respectively;

the cutting edge part (106) is arranged on the surface of the working part (101) and the surface of the enhancement layer (105), the scalpel base body (1) is made of ceramic materials, and a nano coating is arranged inside the enhancement layer (105);

the connecting hole (107) is fixedly arranged on the surface of the connecting part (102).