Preparation method of medical high-insulation ceramic electrotome

Abstract

The invention relates to the field of medical instrument materials, in particular to a preparation method of a medical high-insulation ceramic electrotome, which comprises the following steps: S1, obtaining a powder raw material, and mixing different types of powder in proportion to form powder particles; s2, carrying out drying treatment on the powder particle raw materials; s3, the dry powder particles are subjected to stamping and shaping treatment, and a blank body is formed; s4, carrying out calcination shaping treatment on the shaped blank body; and S5, a clamping device is used for conducting positioning treatment on the shaped blank, the positioned blank is conveyed, and then subsequent operation treatment is conducted on the blank. The sliding block is pushed, one end of the sliding block is pushed out of the outer side surface of the butt joint sleeve shell, at the moment, the clamping arms on the outer side surface of the sliding block can be unfolded towards the two sides under the pushing of the elastic force of the limiting springback shaft, and at the moment, the tail end of the stamped high-insulation ceramic knife is connected to the inner side wall face of the clamping plate in a sleeving mode; and the clamping plate is used for limiting the upper surface and the lower surface of the tail end of the high-insulation ceramic knife.

Description

Technical Field

[0001] The invention belongs to the technical field of medical device materials, and in particular relates to a method for preparing a medical high-insulation ceramic electric knife. Background Art

[0002] The medical electrosurgery unit is a device widely used in surgical operations. It uses high-frequency electric current to cut tissue and stop bleeding at the same time. One of the key components of the electrosurgery unit is the insulating material, which is used to isolate the current, prevent current leakage, and ensure surgical safety. Traditional insulating materials are mostly polymers or alumina ceramics, but they are highly brittle, have high processing costs, and are prone to insulation breakdown in high-voltage and high-frequency environments. They also have insufficient high-temperature resistance, low mechanical strength, and are prone to aging. Developing a ceramic material with excellent insulation properties, high mechanical strength, high-temperature resistance, and good biocompatibility has important application value.

[0003] A patent with publication number CN117125986A discloses a titanium nitride ceramic, its preparation method and application. The titanium nitride ceramic is made of raw materials including inorganic powder, and the inorganic powder includes titanium nitride, a resistance regulator and a sintering aid; the mass ratio of the titanium nitride, the resistance regulator and the sintering aid is 100:(1~110):(4~20). The titanium nitride ceramic in the present invention has high bending strength and Vickers hardness, and can be used in biomedicine, such as: ceramic knees, bones, teeth, etc., high-temperature wear-resistant parts, cutting tools, etc. The resistivity and resistance temperature coefficient of the titanium nitride ceramic in the present invention are adjustable and controllable, and can be used for the heating component of the atomization core of electronic cigarettes.

[0004] In the current existing technology, traditional insulating materials are mostly polymers or alumina ceramics, but they are highly brittle, have high processing costs, are prone to insulation breakdown in high-voltage and high-frequency environments, have insufficient high-temperature resistance, low mechanical strength, and are prone to aging.

[0005] To this end, the present invention provides a method for preparing a medical high-insulation ceramic electric knife. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a method for preparing a medical high-insulation ceramic electric knife according to the present invention comprises: S1. Obtain powder raw materials, mix different types of powders in proportion, and form powder particles; S2, drying the powder and granular raw materials; S3, punching and shaping the dry powder particles to form an embryo; S4, calcining the shaped embryo; S5. Positioning the shaped embryo using a clamping device, transporting the positioned embryo, and performing subsequent operations on the embryo; S6. Perform laser polishing on the embryo after calcination and shaping.

[0008] Preferably, the S1 further comprises the following steps: The powder raw materials include aluminum oxide, zirconium oxide, yttrium oxide, silicon dioxide and additives, and the types of additives include lanthanum oxide, cerium oxide and magnesium oxide; the aluminum oxide, zirconium oxide, yttrium oxide, silicon dioxide and additives are mixed in proportion, and during the mixing process, a dispersant ammonium polyacrylate and a binder polyvinyl alcohol are added to the raw materials; the raw materials are uniformly mixed using a ball mill mixer to obtain mixed powder particles, and the diameter of the powder particles is 0.1-0.5 μm.

[0009] Preferably, the S1 further comprises the following steps: The aluminum oxide (Al2O3) accounts for 70-85% by mass and serves as the basic matrix of the raw materials; The mass proportion of the zirconium oxide (ZrO2) is 8-15%, which is the basic toughness of the raw material; The yttrium oxide (Y2O3) accounts for 2-5% by mass and acts as a stabilizer in the raw materials, thereby improving fracture toughness and wear resistance; The mass proportion of silicon dioxide (SiO2) is 0.5-2%, which reduces the sintering temperature of the raw materials and reduces energy consumption; The additives: lanthanum oxide (La2O3), cerium oxide (CeO2), and magnesium oxide (MgO) each account for 1-3% by mass, thereby improving the insulation, high temperature resistance, antibacterial and biocompatibility of the grain boundaries.

[0010] Preferably, the step S2 further comprises the following steps: The mixed powder particles are collected and accumulated inside the dryer to ensure uniform temperature distribution inside the drying equipment; The drying temperature is controlled according to the thermal sensitivity of the current powder particles, and the drying time is reasonably controlled; The powder particles are dried by controlling the speed of the hot air flow to ensure that the powder particles are fully exposed to the hot air; While not affecting the quality of the powder particles, an appropriate amount of anti-caking agent is added to the inside of the powder particles, and the powder particles are stirred by a stirring device inside the drying equipment to reduce the agglomeration of the powder particles after mixing.

[0011] Preferably, the S4 further comprises the following steps: The dried powder particles are placed in the mold, and the appropriate pressing pressure, pressing speed and holding time are selected according to the properties of the powder and the requirements of the embryo, and the powder particles in the mold are punched by a hydraulic press; When the hydraulic press is performing stamping, the air in the powder is gradually expelled in combination with vibration and pressurization, so that the embryo can be tightly combined together. At the same time, the vibration is used to evenly lay the powder particles inside the mold, so that the downward pressure of the hydraulic press can be evenly limited to the surface of the powder particles, avoiding cracks, air holes or uneven stamping of the embryo.

[0012] Preferably, the clamping device includes a docking sleeve, a limiting groove is provided on the top surface of the docking sleeve, a baffle is provided on the inner wall of the docking sleeve and on the inner wall of the entrance of the limiting groove, limiting strips are provided on the inner walls on both sides of the docking sleeve, and an elastic wire is fixedly connected to the inner wall of the docking sleeve.

[0013] Preferably, the other end of the elastic wire is fixedly connected to a slider movably sleeved on the inner wall of the docking sleeve, and the two side surfaces of the slider are slidably overlapped on the outer surface of the limit bar. A clamping plate is provided on the outer surface of the slider, and a limiting rebound shaft is provided on the outer surface of the slider and at the edge positions on both sides of the clamping plate. A clamping arm is elastically sleeved on the outer surface of the limiting rebound shaft.

[0014] Preferably, a high-insulation ceramic knife is movably sleeved on the inner wall surface of the docking sleeve, and a lap support platform is movably sleeved on the outer surface of the docking sleeve.

[0015] Preferably, the outer surface of the overlapping support platform is symmetrically provided with multiple groups of snap-in grooves, the outer surface of the docking sleeve is movably sleeved on the inner wall of the snap-in groove, and another group of the snap-in grooves is provided with a sunken groove on the inner wall, and a rotating shaft is provided on the inner wall of the snap-in groove and on one side edge of the sunken groove.

[0016] Preferably, a snap-fit ​​sleeve is movably sleeved on one end of the rotating shaft, and an elastic soft plate is fixedly connected to the upper and lower inner wall surfaces of the snap-fit ​​sleeve. An anti-slip layer that is movably overlapped on the outer surface of the high-insulation ceramic knife is provided on the outer surface of the elastic soft plate, and an elastic strip is provided inside the elastic soft plate.

[0017] The beneficial effects of the present invention are as follows: 1. A method for preparing a medical high-insulation ceramic electric knife according to the present invention comprises pushing the slider and pushing one end of the slider out of the outer surface of the docking sleeve. At this time, the clamping arm on the outer surface of the slider will be expanded to both sides under the elastic force of the limit rebound shaft. At this time, the tail end of the stamped high-insulation ceramic knife is sleeved into the inner wall surface of the clamping plate, and the clamping plate is used to limit the upper and lower surfaces of the tail end of the high-insulation ceramic knife. At this time, the slider is released and the slider is pulled back into the interior of the docking sleeve under the rebound pull of the elastic wire. As the slider enters the interior of the docking sleeve, the entrance of the docking sleeve squeezes and closes the clamping arm, thereby clamping the surface of the clamping arm onto the tail end of the high-insulation ceramic knife and limiting the position of the high-insulation ceramic knife, so as to facilitate the subsequent transfer without touching the high-insulation ceramic knife. 2. A method for preparing a medical high-insulation ceramic electric knife according to the present invention comprises the following steps: after the high-insulation ceramic knife is clamped, the docking sleeve is sleeved on the inner wall surface of the clamping groove, and the position of the high-insulation ceramic knife is limited. At this time, the surface of the high-insulation ceramic knife is polished with a laser. After polishing one side, the docking sleeve is flipped over, and the other side of the high-insulation ceramic knife is polished. After polishing both sides of the high-insulation ceramic knife, the slider is used to push the tip of the high-insulation ceramic knife so that it is clamped into the interior of the clamping sleeve. The elastic strip is used to elastically push the elastic soft plate so that the elastic soft plate is tightly attached to the outer surface of the tip of the high-insulation ceramic knife. At the same time, the anti-slip layer on the outer surface of the elastic soft plate is used to increase the friction and anti-slip effect between the high-insulation ceramic knife and the surface of the high-insulation ceramic knife. 3. The preparation method of a medical high-insulation ceramic electric knife described in the present invention, when the clamping arm is detached from the surface of the high-insulation ceramic knife, one end of the high-insulation ceramic knife is confined to the inner wall surface of the clamping sleeve, and as the slider moves back, the high-insulation ceramic knife will not move with the movement of the slider, thereby causing the tail end of the high-insulation ceramic knife to detach from the inner wall surface of the clamping plate, thereby achieving the effect of positioning, polishing and disassembling the high-insulation ceramic knife without contacting the tail end and tip of the high-insulation ceramic knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic flow diagram of the present invention; Figure 2 It is a three-dimensional diagram of the overlapping support platform in the present invention; Figure 3 It is a three-dimensional diagram of the docking housing in the present invention; Figure 4 This is an expanded perspective view of the docking housing in the present invention; Figure 5This is an exploded perspective view of the docking sleeve in the present invention; Figure 6 It is a partially cutaway stereoscopic view of the snap-fit ​​sleeve in the present invention.

[0020] In the figure: 11, high-insulation ceramic knife; 12, overlapping support platform; 121, clamping groove; 122, recessed groove; 123, clamping sleeve; 124, rotating shaft; 125, elastic soft plate; 126, anti-slip layer; 127, elastic strip; 13, docking sleeve; 131, limiting slide groove; 132, limiting strip; 133, baffle; 134, elastic wire; 135, slider; 136, clamping plate; 137, limiting rebound shaft; 138, clamping arm. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods. Example 1

[0022] like Figure 1 As shown, a method for preparing a medical high-insulation ceramic electric knife according to an embodiment of the present invention includes: S1. Obtain powder raw materials, mix different types of powders in proportion, and form powder particles; S2, drying the powder and granular raw materials; S3, punching and shaping the dry powder particles to form an embryo; S4, calcining the shaped embryo; S5. Positioning the shaped embryo using a clamping device, transporting the positioned embryo, and performing subsequent operations on the embryo; S6. Perform laser polishing on the embryo after calcination and shaping.

[0023] S1 also includes the following steps: The powder raw materials include alumina, zirconia, yttrium oxide, silicon dioxide and additives, and the types of additives include lanthanum oxide, cerium oxide and magnesium oxide. The alumina, zirconia, yttrium oxide, silicon dioxide and additives are mixed in proportion. During the mixing process, a dispersant ammonium polyacrylate and a binder polyvinyl alcohol are added to the raw materials. The raw materials are uniformly mixed using a ball mill mixer to obtain mixed powder particles with a diameter of 0.1 μm. S1 also includes the following steps: Alumina (Al2O3) accounts for 70% by mass and is the basic matrix of the raw materials; Zirconia (ZrO2) accounts for 8% by mass and provides the basic toughness of the raw material; Yttrium oxide (Y2O3) accounts for 2% by mass and acts as a stabilizer in the raw materials, thereby improving fracture toughness and wear resistance; Silicon dioxide (SiO2) accounts for 0.5% by mass, which reduces the sintering temperature of raw materials and reduces energy consumption; Additives: Lanthanum oxide (La2O3), cerium oxide (CeO2), and magnesium oxide (MgO) each account for 1% by mass, thereby improving the insulation, high temperature resistance, antibacterial and biocompatibility of the grain boundaries; S2 also includes the following steps: Collect the mixed powder particles and accumulate them inside the dryer; ensure that the temperature inside the drying equipment is evenly distributed; Control the drying temperature according to the thermal sensitivity of the current powder particles and reasonably control the drying time; The speed of the hot air flow is controlled during the drying process to ensure that the powder particles are fully exposed to the hot air; Without affecting the quality of the powder, an appropriate amount of anti-caking agent is added to the inside of the powder, and the powder is stirred by the stirring device inside the drying equipment to reduce the agglomeration of the powder after mixing; S4 also includes the following steps: The dried powder particles are placed inside the mold, and the appropriate pressing pressure, pressing speed and holding time are selected according to the properties of the powder and the requirements of the embryo. The powder particles inside the mold are then punched using a hydraulic press. When the hydraulic press is stamping, it combines vibration and pressurization to gradually expel the air in the powder, so that the embryo can be tightly combined together. At the same time, the vibration is used to evenly spread the powder particles inside the mold, so that the downward pressure of the hydraulic press can be evenly limited to the surface of the powder particles, avoiding cracks, air holes or uneven stamping in the embryo. Example 2

[0024] like Figure 1 As shown, a method for preparing a medical high-insulation ceramic electric knife according to an embodiment of the present invention includes: S1. Obtain powder raw materials, mix different types of powders in proportion, and form powder particles; S2, drying the powder and granular raw materials; S3, punching and shaping the dry powder particles to form an embryo; S4, calcining the shaped embryo; S5. Positioning the shaped embryo using a clamping device, transporting the positioned embryo, and performing subsequent operations on the embryo; S6. Perform laser polishing on the embryo after calcination and shaping.

[0025] S1 also includes the following steps: The powder raw materials include alumina, zirconia, yttrium oxide, silicon dioxide, and additives, including lanthanum oxide, cerium oxide, and magnesium oxide. The alumina, zirconia, yttrium oxide, silicon dioxide, and additives are mixed in proportion. During the mixing process, a dispersant, ammonium polyacrylate, and a binder, polyvinyl alcohol, are added to the raw materials. The raw materials are uniformly mixed using a ball mill mixer to obtain mixed powder particles with a diameter of 0.3 μm. S1 also includes the following steps: Alumina (Al2O3) accounts for 80% by mass and is the basic matrix of the raw materials; Zirconia (ZrO2) accounts for 11% by mass and is the basic toughness of the raw material; Yttrium oxide (Y2O3) accounts for 3.5% by mass and acts as a stabilizer in the raw materials, thereby improving fracture toughness and wear resistance; Silicon dioxide (SiO2) accounts for 1.2% by mass, which reduces the sintering temperature of raw materials and reduces energy consumption; Additives: Lanthanum oxide (La2O3), cerium oxide (CeO2), and magnesium oxide (MgO) each account for 2% by mass, thereby improving the insulation, high temperature resistance, antibacterial and biocompatibility of the grain boundaries; S2 also includes the following steps: Collect the mixed powder particles and accumulate them inside the dryer; ensure that the temperature inside the drying equipment is evenly distributed; Control the drying temperature according to the thermal sensitivity of the current powder particles and reasonably control the drying time; The speed of the hot air flow is controlled during the drying process to ensure that the powder particles are fully exposed to the hot air; Without affecting the quality of the powder, an appropriate amount of anti-caking agent is added to the inside of the powder, and the powder is stirred by the stirring device inside the drying equipment to reduce the agglomeration of the powder after mixing; S4 also includes the following steps: The dried powder particles are placed inside the mold, and the appropriate pressing pressure, pressing speed and holding time are selected according to the properties of the powder and the requirements of the embryo. The powder particles inside the mold are then punched using a hydraulic press. When the hydraulic press is stamping, it combines vibration and pressurization to gradually expel the air in the powder, so that the embryo can be tightly combined together. At the same time, the vibration is used to evenly spread the powder particles inside the mold, so that the downward pressure of the hydraulic press can be evenly limited to the surface of the powder particles, avoiding cracks, air holes or uneven stamping in the embryo. Example 3

[0026] like Figure 1 As shown, Figure 1 As shown, a method for preparing a medical high-insulation ceramic electric knife according to an embodiment of the present invention includes: S1. Obtain powder raw materials, mix different types of powders in proportion, and form powder particles; S2, drying the powder and granular raw materials; S3, punching and shaping the dry powder particles to form an embryo; S4, calcining the shaped embryo; S5. Positioning the shaped embryo using a clamping device, transporting the positioned embryo, and performing subsequent operations on the embryo; S6. Perform laser polishing on the embryo after calcination and shaping.

[0027] S1 also includes the following steps: The powder raw materials include alumina, zirconia, yttrium oxide, silicon dioxide, and additives, including lanthanum oxide, cerium oxide, and magnesium oxide. The alumina, zirconia, yttrium oxide, silicon dioxide, and additives are mixed in proportion. During the mixing process, a dispersant, ammonium polyacrylate, and a binder, polyvinyl alcohol, are added to the raw materials. The raw materials are uniformly mixed using a ball mill mixer to obtain mixed powder particles with a diameter of 0.5 μm. S1 also includes the following steps: Alumina (Al2O3) accounts for 85% by mass and is the basic matrix of the raw materials; Zirconia (ZrO2) accounts for 15% by mass and provides the basic toughness of the raw material; Yttrium oxide (Y2O3) accounts for 5% by mass and acts as a stabilizer in the raw materials, thereby improving fracture toughness and wear resistance; Silicon dioxide (SiO2) accounts for 2% by mass, which reduces the sintering temperature of raw materials and reduces energy consumption; Additives: Lanthanum oxide (La2O3), cerium oxide (CeO2), and magnesium oxide (MgO) each account for 3% by mass, thereby improving the insulation, high temperature resistance, antibacterial and biocompatibility of the grain boundaries; S2 also includes the following steps: Collect the mixed powder particles and accumulate them inside the dryer; ensure that the temperature inside the drying equipment is evenly distributed; Control the drying temperature according to the thermal sensitivity of the current powder particles and reasonably control the drying time; The speed of the hot air flow is controlled during the drying process to ensure that the powder particles are fully exposed to the hot air; Without affecting the quality of the powder, an appropriate amount of anti-caking agent is added to the inside of the powder, and the powder is stirred by the stirring device inside the drying equipment to reduce the agglomeration of the powder after mixing; S4 also includes the following steps: The dried powder particles are placed inside the mold, and the appropriate pressing pressure, pressing speed and holding time are selected according to the properties of the powder and the requirements of the embryo. The powder particles inside the mold are then punched using a hydraulic press. When the hydraulic press is stamping, it combines vibration and pressurization to gradually expel the air in the powder, so that the embryo can be tightly combined together. At the same time, the vibration is used to evenly spread the powder particles inside the mold, so that the downward pressure of the hydraulic press can be evenly limited to the surface of the powder particles, avoiding cracks, air holes or uneven stamping in the embryo. Example 4

[0028] like Figures 2 to 5 As shown, the clamping device includes a docking sleeve 13, a limiting sliding groove 131 is provided on the top surface of the docking sleeve 13, and a baffle 133 is provided on the inner wall of the docking sleeve 13 and the inner wall of the entrance of the limiting sliding groove 131, and a limiting strip 132 is provided on the inner wall of both sides of the docking sleeve 13, and an elastic wire 134 is fixedly connected to the inner wall of the docking sleeve 13, and the other end of the elastic wire 134 is fixedly connected to a slider 135 movably sleeved on the inner wall of the docking sleeve 13, and the two side surfaces of the slider 135 are slidably overlapped on the outer surface of the limiting strip 132, and a clamping plate 136 is provided on the outer surface of the slider 135, and a limiting rebound shaft 137 is provided on the outer surface of the slider 135 and located on the two side edge positions of the clamping plate 136, and a clamping arm 138 is elastically sleeved on the outer surface of the limiting rebound shaft 137.

[0029] When the slider 135 is pushed and one end of the slider 135 is pushed out of the outer surface of the docking shell 13, the clamping arm 138 on the outer surface of the slider 135 will be expanded to both sides under the elastic force of the limit rebound shaft 137. At this time, the tail end of the high-insulation ceramic knife 11 after stamping is sleeved into the inner wall surface of the clamping plate 136, and the clamping plate 136 is used to limit the upper and lower surfaces of the tail end of the high-insulation ceramic knife 11. At this time, the slider 135 is released and the elastic wire 134 is pulled back to pull the slider 135 back into the interior of the docking shell 13. As the slider 135 enters the interior of the docking shell 13, the entrance of the docking shell 13 squeezes and closes the clamping arm 138, and then the surface of the clamping arm 138 is clamped to the tail end of the high-insulation ceramic knife 11, and the position of the high-insulation ceramic knife 11 is limited, which is convenient for subsequent transfer without touching the high-insulation ceramic knife 11.

[0030] like Figure 1 and Figure 6 As shown, a high-insulation ceramic knife 11 is movably sleeved on the inner wall of the docking sleeve 13, and a lap support platform 12 is movably sleeved on the outer surface of the docking sleeve 13. The outer surface of the lap support platform 12 is symmetrically provided with multiple groups of clamping grooves 121. The outer surface of the docking sleeve 13 is movably sleeved on the inner wall of the clamping groove 121, and another group of clamping grooves 121 are provided with a sunken groove 122 on the inner wall. A rotating shaft 124 is provided on the inner wall of the clamping groove 121 and on one side edge of the sunken groove 122. A clamping sleeve head 123 is movably sleeved on one end of the rotating shaft 124. An elastic soft plate 125 is fixedly connected to the upper and lower inner wall surfaces of the clamping sleeve head 123. An anti-slip layer 126 that is movably overlapped on the outer surface of the high-insulation ceramic knife 11 is provided on the outer surface of the elastic soft plate 125, and an elastic strip 127 is provided inside the elastic soft plate 125.

[0031] After the high-insulation ceramic knife 11 is clamped, the docking sleeve 13 is sleeved on the inner wall surface of the clamping groove 121, and the position of the high-insulation ceramic knife 11 is limited. At this time, the surface of the high-insulation ceramic knife 11 is polished with the laser. After the single-side polishing is completed, the docking sleeve 13 is turned over, and then the other side surface of the high-insulation ceramic knife 11 is polished. After the high-insulation ceramic knife 11 is double-sided polished, the slider 135 is pushed so that the tip of the high-insulation ceramic knife 11 is clamped into the inside of the clamping sleeve 123, and the elastic soft plate 125 is elastically pushed by the elastic strip 127 so that the elastic soft plate 125 is tightly fitted on the outer surface of the tip of the high-insulation ceramic knife 11. At the same time, the anti-slip layer 126 on the outer surface of the elastic soft plate 125 is used to increase the friction and anti-slip effect between the surface of the high-insulation ceramic knife 11 and the surface of the high-insulation ceramic knife 11. When the clamping arm 138 is detached from the surface of the high-insulation ceramic knife 11, one end of the high-insulation ceramic knife 11 is confined to the inner wall surface of the clamping sleeve 123. As the slider 135 moves back, the high-insulation ceramic knife 11 will not move with the movement of the slider 135, thereby causing the tail end of the high-insulation ceramic knife 11 to detach from the inner wall surface of the clamping plate 136, thereby achieving the effect of positioning, polishing and disassembling the high-insulation ceramic knife 11 without contacting the tail end and tip of the high-insulation ceramic knife 11.

[0032] The working principle is as follows: push the slider 135 and push one end of the slider 135 out of the outer surface of the docking shell 13. At this time, the clamping arm 138 on the outer surface of the slider 135 will be expanded to both sides under the elastic force of the limit rebound shaft 137. At this time, the tail end of the stamped high-insulation ceramic knife 11 is sleeved into the inner wall surface of the clamping plate 136, and the clamping plate 136 is used to limit the upper and lower surfaces of the tail end of the high-insulation ceramic knife 11. At this time, release the slider 135 and pull the slider 135 back into the interior of the docking shell 13 under the rebound pull of the elastic wire 134. As the slider 135 enters the interior of the docking shell 13, the entrance of the docking shell 13 squeezes and closes the clamping arm 138, thereby clamping the surface of the clamping arm 138 onto the tail end of the high-insulation ceramic knife 11 and limiting the position of the high-insulation ceramic knife 11, which is convenient for subsequent transfer without touching the high-insulation ceramic knife 11. After the high-insulation ceramic knife 11 is clamped, the docking sleeve 13 is sleeved on the inner wall surface of the clamping groove 121, and the position of the high-insulation ceramic knife 11 is limited. At this time, the surface of the high-insulation ceramic knife 11 is polished with the laser. After the single-side polishing is completed, the docking sleeve 13 is turned over, and then the other side surface of the high-insulation ceramic knife 11 is polished. After the high-insulation ceramic knife 11 is double-sided polished, the slider 135 is pushed so that the tip of the high-insulation ceramic knife 11 is clamped into the inside of the clamping sleeve 123, and the elastic soft plate 125 is elastically pushed by the elastic strip 127 so that the elastic soft plate 125 is tightly fitted on the outer surface of the tip of the high-insulation ceramic knife 11. At the same time, the anti-slip layer 126 on the outer surface of the elastic soft plate 125 is used to increase the friction and anti-slip effect between the surface of the high-insulation ceramic knife 11 and the surface of the high-insulation ceramic knife 11. When the clamping arm 138 is detached from the surface of the high-insulation ceramic knife 11, one end of the high-insulation ceramic knife 11 is confined to the inner wall surface of the clamping sleeve 123. As the slider 135 moves back, the high-insulation ceramic knife 11 will not move with the movement of the slider 135, thereby causing the tail end of the high-insulation ceramic knife 11 to detach from the inner wall surface of the clamping plate 136, thereby achieving the effect of positioning, polishing and disassembling the high-insulation ceramic knife 11 without contacting the tail end and tip of the high-insulation ceramic knife 11.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a medical high-insulation ceramic electric knife, characterized in that: include: S1. Obtain powder raw materials, mix different types of powders in proportion, and form powder particles; S2, drying the powder and granular raw materials; S3, punching and shaping the dry powder particles to form an embryo; S4, calcining the shaped embryo; S5. Positioning the shaped embryo using a clamping device, transporting the positioned embryo, and performing subsequent operations on the embryo; S6. Perform laser polishing on the embryo after calcination and shaping.

2. The method for preparing a medical high-insulation ceramic electric knife according to claim 1, characterized in that: Said S1 further comprises the following steps: The powder raw materials include aluminum oxide, zirconium oxide, yttrium oxide, silicon dioxide and additives, and the types of additives include lanthanum oxide, cerium oxide and magnesium oxide; the aluminum oxide, zirconium oxide, yttrium oxide, silicon dioxide and additives are mixed in proportion, and during the mixing process, a dispersant ammonium polyacrylate and a binder polyvinyl alcohol are added to the raw materials; the raw materials are uniformly mixed using a ball mill mixer to obtain mixed powder particles, and the diameter of the powder particles is 0.1-0.5 μm.

3. The method for preparing a medical high-insulation ceramic electric knife according to claim 2, characterized in that: Said S1 further comprises the following steps: The aluminum oxide (Al2O3) accounts for 70-85% by mass and serves as the basic matrix of the raw materials; The mass proportion of the zirconium oxide (ZrO2) is 8-15%, which is the basic toughness of the raw material; The yttrium oxide (Y2O3) accounts for 2-5% by mass and acts as a stabilizer in the raw materials, thereby improving fracture toughness and wear resistance; The mass proportion of silicon dioxide (SiO2) is 0.5-2%, which reduces the sintering temperature of the raw materials and reduces energy consumption; The additives: lanthanum oxide (La2O3), cerium oxide (CeO2), and magnesium oxide (MgO) each account for 1-3% by mass, thereby improving the insulation, high temperature resistance, antibacterial and biocompatibility of the grain boundaries.

4. The method for preparing a medical high-insulation ceramic electric knife according to claim 3, characterized in that: The S2 further comprises the following steps: The mixed powder particles are collected and accumulated inside the dryer to ensure uniform temperature distribution inside the drying equipment; The drying temperature is controlled according to the thermal sensitivity of the current powder particles, and the drying time is reasonably controlled; The powder particles are dried by controlling the speed of the hot air flow to ensure that the powder particles are fully exposed to the hot air; While not affecting the quality of the powder particles, an appropriate amount of anti-caking agent is added to the inside of the powder particles, and the powder particles are stirred by a stirring device inside the drying equipment to reduce the agglomeration of the powder particles after mixing.

5. The method for preparing a medical high-insulation ceramic electric knife according to claim 4, characterized in that: The S4 further comprises the following steps: The dried powder particles are placed in the mold, and the appropriate pressing pressure, pressing speed and holding time are selected according to the properties of the powder and the requirements of the embryo, and the powder particles in the mold are punched by a hydraulic press; When the hydraulic press is performing stamping, the air in the powder is gradually expelled in combination with vibration and pressurization, so that the embryo can be tightly combined together. At the same time, the vibration is used to evenly lay the powder particles inside the mold, so that the downward pressure of the hydraulic press can be evenly limited to the surface of the powder particles, avoiding cracks, air holes or uneven stamping of the embryo.

6. The method for preparing a medical high-insulation ceramic electric knife according to claim 1, characterized in that: The clamping device includes a docking sleeve (13), a limiting sliding groove (131) is provided on the top surface of the docking sleeve (13), a baffle (133) is provided on the inner wall surface of the docking sleeve (13) and located on the inner wall surface of the entrance of the limiting sliding groove (131), limiting strips (132) are provided on the inner wall surfaces of both sides of the docking sleeve (13), and an elastic wire (134) is fixedly connected to the inner wall surface of the docking sleeve (13).

7. The method for preparing a medical high-insulation ceramic electric knife according to claim 6, characterized in that: The other end of the elastic wire (134) is fixedly connected to a slider (135) that is movably sleeved on the inner wall of the docking shell (13). The two side surfaces of the slider (135) are slidably overlapped on the outer surface of the limit strip (132). A clamping plate (136) is provided on the outer surface of the slider (135). A limit rebound shaft (137) is provided on the outer surface of the slider (135) and at the edge positions on both sides of the clamping plate (136). A clamping arm (138) is elastically sleeved on the outer surface of the limit rebound shaft (137).

8. The method for preparing a medical high-insulation ceramic electric knife according to claim 6, characterized in that: A high-insulation ceramic knife (11) is movably sleeved on the inner wall surface of the docking sleeve (13), and a lap support platform (12) is movably sleeved on the outer surface of the docking sleeve (13).

9. The method for preparing a medical high-insulation ceramic electric knife according to claim 8, characterized in that: The outer surface of the overlap support platform (12) is symmetrically provided with a plurality of groups of snap-fit ​​grooves (121), the outer surface of the docking sleeve (13) is movably sleeved on the inner wall of the snap-fit ​​groove (121), and another group of the snap-fit ​​grooves (121) is provided with an inner wall surface thereof with a sunken groove (122), and a rotating shaft (124) is provided on the inner wall surface of the snap-fit ​​groove (121) and at a side edge position of the sunken groove (122).

10. The method for preparing a medical high-insulation ceramic electric knife according to claim 9, characterized in that: A snap-fit ​​sleeve (123) is movably sleeved on one end of the rotating shaft (124); an elastic soft plate (125) is fixedly connected to the upper and lower inner wall surfaces of the snap-fit ​​sleeve (123); an anti-slip layer (126) movably overlapped on the outer surface of the high-insulation ceramic knife (11) is provided on the outer surface of the elastic soft plate (125); and an elastic strip (127) is provided inside the elastic soft plate (125).

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