CN115568939A

CN115568939A - Multifunctional composite ceramic bipolar electrotome

Info

Publication number: CN115568939A
Application number: CN202211575641.0A
Authority: CN
Inventors: 张海军; 裴翀翀; 周强; 袁坤山
Original assignee: Shandong Branden Medical Devices Co Ltd
Current assignee: Shandong Branden Medical Devices Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-01-06
Anticipated expiration: 2042-12-09
Also published as: CN115568939B

Abstract

The invention discloses a multifunctional composite ceramic bipolar electrotome, and belongs to the technical field of medical instruments. The ceramic electric screwdriver comprises a ceramic screwdriver head, a metal screwdriver handle and a metal handle, wherein the screwdriver head is arranged at one end of the screwdriver handle, the other end of the screwdriver handle is connected with the handle, and a power switch button group and a light switch button are arranged on the handle; the bipolar electric knife has the advantages of mechanical cutting and electric coagulation effects, and has the characteristics of no adhesion, no smoke, good lighting effect and easiness in cleaning, and the problems of tissue damage caused by high-frequency voltage and current, much smoke, unclear visual field and difficulty in cleaning of the electric knife in the operation process are solved.

Description

Multifunctional composite ceramic bipolar electrotome

Technical Field

The invention relates to the field of medical instruments, in particular to a multifunctional composite ceramic bipolar electrotome.

Background

China carries out a large number of surgical operations every year, and most of the surgical operations need to be carried out on tissue cutting. In the cutting process of the traditional mechanical hand scalpel, a wound has more bleeding, and the operation time is longer. The high-frequency electric knife is used for replacing a traditional mechanical scalpel to cut tissues and consists of a main machine and an electric knife pen. When the electric scalpel is in work, the electric knife edge end generates high-frequency voltage and current to heat tissues when contacting with a human body, so that the electric excision and the electric coagulation of the tissues are realized. There are some problems in operation, however: high-frequency voltage and current flowing through a human body can cause damage to the human body and influence wound recovery; during electrosection, a large amount of smoke is generated by adhering tissues by the electrotome, even peripheral tissues are cracked and bleed, and the electrode knife needs to be frequently replaced, so that the operation efficiency is influenced; when a thick portion of fat is electrically cut, the fat is easily liquefied.

The utility model patent for CN 205359622U discloses a multi-functional bipolar electrotome of high frequency, is applicable to and seals capillary at the pathological change tissue site radio frequency bipolar current of cutting, reaches quick blood coagulation effect, and this patent regards middle ceramic blade as separating tissue cutting edge, and both sides metal blade is as the electrode, and the handle afterbody is established the trachea bamboo joint and is connected with smoking device. The utility model discloses a have tissue excision and synchronous rapid solidification hemostasis function simultaneously, but this electrotome does not solve the electrotome and causes the tissue damage in easy adhesion tissue when the cutting blood coagulation, and this electrotome is only from the problem of solving the electrotome smog in the aspect of the smoking, and does not solve the production of smog from the root, and the injury that smog brought for medical personnel still exists, and this electrotome does not give patient's wound illuminating effect.

The utility model patent for CN 215937639U discloses a surgical operation is with smoking formula high frequency electric knife, and detachable power connecting wire is installed on high frequency electric knife body one side top, and power connecting wire is connected with the socket head, and the socket head is connected with the power connecting rod, and the aseptic transparent infusion pad pasting of electrotome main part side-mounting attracts the pipe in the detachable disposable of pad pasting other end installation. The utility model discloses a smoke that will produce is inhaled away through the installation and is attracted the pipe, has reduced the harm of smog among the operation process, but the operation is comparatively loaded down with trivial details, and the smoking is not thorough, and is the monopole sword, does not solve the problem that the electrotome cutting harms the wound.

At present, no electric knife in the market has the functions of mechanical cutting, electric coagulation and illumination at the same time. There is therefore a need for an electrocoagulable, illuminable bipolar electrotome that reduces high frequency current damage.

Disclosure of Invention

The invention aims to provide a multifunctional composite ceramic bipolar electrotome, which solves the problems of large damage, much smoke and unclear visual field of the electrotome in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multi-functional compound ceramic bipolar electrotome, includes the tool bit, the handle of a knife, tool bit one end passes through metal shrapnel plug-in with the handle of a knife and is connected, and the handle of a knife other end passes through circular telegram plug and handle plug-in connection.

The tool bit consists of a main rod, an insulating sleeve, a cutting part, a first electrode plate and a second electrode plate, the main rod is positioned at the far end of the tool bit and connected with the tool handle, the insulating sleeve is positioned at the near end of the main rod, the first electrode plate and the second electrode plate are positioned at two sides of the tail part of the cutting part and used as a positive electrode and a negative electrode, the main rod is a cylinder with the length of 35-45mm and the diameter of 2.4-2.6mm, the thickness of the insulating sleeve is 1-2mm, the length of 18-22mm and the inner diameter of 2.4-2.6mm; the thickness of the cutting part is 0.2-0.3 mm, the thickness of the first electrode plate and the second electrode plate is 0.4-0.4 mm, two small-sized light-emitting diodes or LED lamps used for illumination are installed at the near end of the handle, and a layer of anti-skidding insulating glue layer is arranged outside the handle and the handle. The main rod and the cutting part are made of insulating ceramics through sintering, the first electrode slice and the second electrode slice are made of nickel oxide, molybdenum boride, single-layer carbon nano tubes, graphene and adhesives according to a certain proportion through pressing, sintering and polishing, the polished surface roughness is Ra0.01-0.04, and the anti-adhesion performance is good, wherein the mass of the nickel oxide is 30-70%, the mass of the molybdenum boride is 20-50%, the mass of the single-layer carbon nano tubes is 0.5-2%, the mass of the graphene is 0.5-2%, and the mass of the adhesives is 1-2%.

Two metal elastic pieces are installed at the near end of the handle, a power-on plug is installed at the far end of the handle, when the handle is connected with the tool bit, the far ends of the first electrode piece and the second electrode piece are respectively connected with the two metal elastic pieces, when the handle is connected with the handle, the power-on plug is connected with the charging hole, a wire is arranged in the handle to connect the two metal elastic pieces and the power-on plug, and a layer of anti-skid insulating layer wraps the handle.

The handle is provided with a power switch button group and a light switch button, the built-in battery group provides electric energy for the small-sized light-emitting diode or the LED lamp, the used battery is 4 disposable button batteries, the proximal end of the handle is provided with a charging hole and is connected with the handle of the knife through a power-on plug, and the handle is wrapped with an anti-skidding insulating and heat-insulating layer.

Compared with the prior art, the invention has the following beneficial effects: 1. the ceramic knife is directly used for cutting, so that postoperative pain of a patient can be reduced, fat liquefaction is avoided, tissues can not be damaged, and the recovery effect after scabbing is better.

2. The composite ceramic electrotome can be used for electrocoagulation of wounds while mechanically cutting tissues, so that the harm of high-frequency voltage and current to the bodies of patients is reduced.

3. By using the ceramic knife to perform mechanical cutting, the phenomenon that a large amount of smoke generated in the operation process influences the visual field of an operator can be prevented, so that the operation safety is improved.

4. The first electrode plate and the second electrode plate are used as positive and negative electrodes, a negative plate is not needed, and the patient is prevented from being damaged due to poor contact of the negative plate.

5. The two small light emitting diodes or the LED lamps are arranged at the near end of the handle, so that a clear visual field can be provided, and the safety of the operation is improved.

The conception, specific structure and technical effects of the present invention will be further described in conjunction with the accompanying drawings and specific embodiments, so that the purpose, features and effects of the present invention can be fully understood.

Drawings

FIG. 1 is a front schematic view of a multi-functional composite ceramic bipolar electrotome, wherein: the multifunctional screwdriver comprises a screwdriver head 1, a screwdriver handle 2, a screwdriver handle 3, a handle 4, an electrified plug, a small light emitting diode or an LED lamp 5, a power switch button group 6 and a light switch button 7, wherein the part close to the tip of the screwdriver is a near end, the part far away from the tip of the screwdriver is a far end, and the cross section and the longitudinal section are referenced by a figure 1.

Fig. 2 is a side schematic view of a multi-functional composite ceramic bipolar electrotome.

Fig. 3 is a schematic front view of a cutter head, wherein: 9-main rod, 12-insulating sleeve, 13-blade and 14-blade back.

Fig. 4 is a schematic side view of a cutter head according to examples 1 and 2, wherein: 8-cutting part, 9-main rod, 10-first electrode plate, 11-second electrode plate and 12-insulating sleeve.

Fig. 5 is a cross-sectional view of a cutter head according to examples 1 and 2.

Fig. 6 is a cross-sectional view of the main shaft of embodiment 1 and embodiment 2.

Fig. 7 is a schematic front view of a cutter head of example 2.

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 present specification, and the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The invention provides a non-adhesive self-lighting ceramic bipolar electrotome which comprises the following components in parts by weight: including tool bit 1, handle of a knife 2, handle 3, 1 distal end mobile jib 9 of tool bit is connected with 2 near-end metal shrapnel of handle of a knife, and 2 distal end circular telegram plugs 4 of handle of a knife are connected with 3 charging hole of handle, and 2 inside cavitys of handle of a knife connect metal shrapnel and circular telegram plug through the wire, 2 outside parcel one deck anti-skidding insulating layers of handle of a knife, and handle 3 sets up switch button group 6 and light shift knob 7, the outside parcel one deck anti-skidding insulating layer of handle 3.

As shown in fig. 3-6, the cutting head 1 is composed of a cutting part 8, a main rod 9, a first electrode plate 10, a second electrode plate 11 and an insulating sleeve 12, wherein the first electrode plate 10 and the second electrode plate 11 have the same shape and size. The main rod 9 is a cylinder with the length of 40mm and the diameter of 2.4-2.6mm, the insulating sleeve 12 is sleeved at the near end of the main rod 9, the inner diameter is 2.4-2.6mm, the length is 18mm, and the thickness is 1mm; the cross section of the cutting part 8 is of an arrow-shaped structure, the thickness of the thinnest part of the head part is 0.2 mu m, the waist length is 1.52mm, the bottom side length is 0.3mm, the tail part length is 1mm, and the width is 0.1mm; the first electrode plate 10 and the second electrode plate 11 are completely equal in shape and size, 50mm in length and 1mm in width, the cross sections of the first electrode plate 10 and the second electrode plate 11 are right-angled trapezoids, the upper bottom is 0.1mm, the lower bottom is 0.2mm, the height is 0.4mm, and the thickness of the thinnest part is 0.4 mu m. Two small light emitting diodes or LED lamps 5 used for lighting are installed at the near end of a handle 3, a layer of antiskid insulating glue layer is arranged outside a handle 2 and the handle 3, a main rod 9 and a cutting part 8 are made of insulating ceramics through sintering, a first electrode slice 10 and a second electrode slice 11 are made of nickel oxide, molybdenum boride, single-layer carbon nano tubes, graphene and adhesives according to a certain proportion through pressing and then sintering and polishing, the polished surface roughness is Ra0.01-0.04, and the anti-adhesion performance is good, wherein the mass ratio of the nickel oxide is 30-70%, the molybdenum boride is 20-50%, the single-layer carbon nano tubes are 0.5-2%, the graphene is 0.5-2%, the adhesives are 1-2%, and the adhesives can be polyvinylidene fluoride, polyacrylic acid, styrene butadiene rubber and the like.

Detailed working process

During operation, the sharp blade edge of ceramic sword can directly cut the tissue, opens the electricity and congeals the back of switch, and the electrode slice of ceramic sword both sides can be to wound electricity and congeal hemostasis, has avoided the injury of high frequency voltage electric current to the tissue and the production of a large amount of smog, can provide clear field of vision for the doctor when opening the light button, increases the security of operation.

Example 2

Example 2 differs from example 1 in the structure of the cutting head: as shown in fig. 4-7, the tool bit 1 comprises an insulating sleeve 12, a cutting portion 8, a first electrode piece 10, a second electrode piece 11, and a main rod 9, wherein the first electrode piece 10 and the second electrode piece 11 have the same shape and size. The main rod 9 is a cylinder with the length of 45mm and the diameter of 2.4-2.62.5mm, the insulating sleeve 12 is sleeved at the near end of the main rod 9, the inner diameter is 2.4-2.6mm, the length is 22cm, and the thickness is 2mm; the cross section of the cutting part 8 is of an arrow-shaped structure, the thickness of the thinnest part of the head part is 0.2 mu m, the waist length is 2mm, the bottom side length is 0.3mm, the tail part length is 1.5mm, and the width is 0.2mm; the first electrode plate 10 and the second electrode plate 11 are completely equal in shape and size and 70mm in length, the cross sections of the first electrode plate 10 and the second electrode plate 11 are right-angled trapezoids, the upper bottom is 0.05mm, the lower bottom is 0.4mm, the height is 2mm, and the thickness of the thinnest part is 0.4 mu m.

Comparative example 1

A disposable mechanical scalpel consists of a scalpel head made of pure titanium, titanium alloy, stainless steel or carbon steel and a plastic scalpel handle.

Comparative example 2

A monopolar electrotome: the knife head is made of stainless steel, and consists of a knife head, a handle, a manual switch and an electric wire.

Comparative example 3

An illuminable monopolar electrotome: the knife head is made of stainless steel, and consists of a knife head, a handle part, a manual switch, a lighting device and an electric wire, wherein the lighting device is arranged on one side of the handle, so that a clear visual field can be provided during operation.

Comparative example 4

A single-pole electric knife capable of sucking smoke is provided: the knife head is made of stainless steel, and consists of a knife head, a suction tube, a manual switch and an electric wire, wherein the knife head is provided with the suction tube connected with an air suction pump.

Comparative example 5

A bipolar electrotome: the multifunctional kitchen knife comprises a knife head, a knife handle and a handle, wherein the knife head comprises a first electrode plate, a second electrode plate and a middle ceramic blade, which are made of stainless steel, and the rear end of the handle is provided with a trachea bamboo joint connected with a smoking device.

Test method

Soaking the cutter head in fresh pig blood at normal temperature for 1h, and observing the adhesion of the electrotome; cutting fresh pork by using different cutter heads, observing whether the tissue adhesion performance of the cutter head, the smog generation condition and the cutter point visual field are clear, wiping for 2-3 times by using common cotton cloth, and observing the adhesion condition of the surface of the wiped cutter head; cutting fresh pig fat by using different cutter heads, and observing the liquefaction condition of the fat; testing the surface roughness of the electrotome by using a contrast method under a microscope; sharpness comparison was performed using a purchased Bard-Parker scalpel and a ceramic knife, and the number of cuts was calculated using the same amount of force to cut the A4 paper perpendicularly.

The results are shown in table 1:

TABLE 1

Anti-blood adhesion

Anti-tissue adhesion

Wiping the rear surface

Smoke generation

Brightness of illumination

Surface roughness

Liquefaction of fat

Number of pieces cut

Example 1

Forming a thin film

Transparent film

Is smooth and smooth

Is free of

Clear field of vision

0.04

Without liquefaction

8

Example 2

Forming a thin film

Transparent film

Is smooth and smooth

Is free of

Clear field of vision

0.04

Without liquefaction

9

Comparative example 1

Forming a thick film

Thicker transparent film

Small amount of blood stain

Is free of

Dark blade

0.5

Without liquefaction

3

Comparative example 2

Forming a thick film

Mass burned tissue

Strong white cigarette

The visual field is very dark

0.5

Bulk liquefaction

0

Comparative example 3

Forming a thick film

Mass burned tissue

Strong white cigarette

Blurred vision

0.5

Bulk liquefaction

0

Comparative example 4

Forming a thick film

Mass burned tissue

Little white cigarette

Very dark field of vision

0.5

Small amount of liquid

0

Comparative example 5

Forming a thick film

Mass burned tissue

Little white cigarette

Very dark field of vision

0.5

Small amount of liquid

8

As can be seen from the table 1, the working of the embodiment does not generate smoke, does not stick to blood and tissues, has good visual field of operation, good recovery effect after cutting and small damage to human body.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a bipolar electrotome of multi-functional compound ceramic, includes tool bit, handle of a knife and handle, and the tool bit comprises mobile jib, insulation support, cutting part, first electrode slice and second electrode slice, its characterized in that: the cross section of the cutting part is in an arrow shape, the triangular area of the head part of the arrow shape is a blade, the rectangular area of the tail part is a blade back, the cross sections of the first electrode plate and the second electrode plate are in a trapezoid shape, the two sides of the tail part of the cutting part are used as positive and negative electrodes, the sharp end of the tool bit is a near end, the end far away from the sharp end is a far end, and the far end of the cutting part, the far end of the first electrode plate and the far end of the second electrode plate are embedded into the middle of the main rod; the cutting part is made of an insulating ceramic material, the first electrode plate and the second electrode plate are made of a conductive ceramic material, and the conductive ceramic is formed by pressing and sintering nickel oxide, molybdenum boride, single-layer carbon nanotubes, graphene and an adhesive; two illuminating lamps are arranged at the lower end of the handle.

2. The multi-functional composite ceramic bipolar electrotome according to claim 1, characterized in that: the cross section of the cutting part is arrow-shaped, and the thickness of the thinnest part of the blade is 0.2 mu m; the first electrode plate and the second electrode plate are positioned at two sides of the tail part of the cutting part, the cross section is trapezoidal, and the thickness of the thinnest part is 0.4 mu m.

3. The multifunctional composite ceramic bipolar electrotome according to claim 2, wherein: the cutting part is characterized in that the main rod is a cylinder and made of an insulating ceramic material, the insulating sleeve is made of an insulating rubber material, the cross section of the cutting part is in an arrow shape and made of an insulating ceramic material, the first electrode plate and the second electrode plate are completely the same in material and size, and the first electrode plate and the second electrode plate are made of high-conductivity ceramic.

4. The multifunctional composite ceramic bipolar electrotome according to claim 3, wherein: the high-conductivity ceramic is prepared by pressing and sintering nickel oxide, molybdenum boride, single-layer carbon nano tubes, graphene and a bonding agent according to a certain proportion, wherein the mass of the nickel oxide is 30-70%, the mass of the molybdenum boride is 20-50%, the mass of the single-layer carbon nano tubes is 0.5-2%, the mass of the graphene is 0.5-2%, and the mass of the bonding agent is 1-2%.

5. The multi-functional composite ceramic bipolar electrotome according to claim 1, characterized in that: the main rod is connected with the cutting part, the main rod is connected with the first electrode slice and the second electrode slice in an embedded mode, and the far ends of the cutting part, the first electrode slice and the second electrode slice are parallel to the far end of the main rod.

6. The multi-functional composite ceramic bipolar electrotome according to claim 1, characterized in that: the two illuminating lamps are positioned on the opposite sides of the lower end of the handle, and when the illuminating lamps are in an on state, the illuminating lamps are focused on the near end part of the cutter head.