CN104905874A - Microwave ablation needle having biopsy function and method for manufacturing stab head thereof - Google Patents
Microwave ablation needle having biopsy function and method for manufacturing stab head thereof Download PDFInfo
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- CN104905874A CN104905874A CN201510331623.1A CN201510331623A CN104905874A CN 104905874 A CN104905874 A CN 104905874A CN 201510331623 A CN201510331623 A CN 201510331623A CN 104905874 A CN104905874 A CN 104905874A
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- 238000002679 ablation Methods 0.000 title claims abstract description 46
- 238000001574 biopsy Methods 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 62
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 46
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 28
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 20
- 239000010935 stainless steel Substances 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 70
- 239000010410 layer Substances 0.000 claims description 51
- 239000011259 mixed solution Substances 0.000 claims description 13
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 13
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000013543 active substance Substances 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- NMGYKLMMQCTUGI-UHFFFAOYSA-J diazanium;titanium(4+);hexafluoride Chemical compound [NH4+].[NH4+].[F-].[F-].[F-].[F-].[F-].[F-].[Ti+4] NMGYKLMMQCTUGI-UHFFFAOYSA-J 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 238000009713 electroplating Methods 0.000 claims description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 3
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 3
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000007750 plasma spraying Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- WFRKJMRGXGWHBM-UHFFFAOYSA-M sodium;octyl sulfate Chemical compound [Na+].CCCCCCCCOS([O-])(=O)=O WFRKJMRGXGWHBM-UHFFFAOYSA-M 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 230000003670 easy-to-clean Effects 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 230000000638 stimulation Effects 0.000 abstract 1
- 206010028980 Neoplasm Diseases 0.000 description 6
- 230000008021 deposition Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000002085 irritant Substances 0.000 description 2
- 231100000021 irritant Toxicity 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000031737 Tissue Adhesions Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000011298 ablation treatment Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The invention relates to a microwave ablation needle having a biopsy function and a method for manufacturing a stab head thereof and belongs to the technical field of microwave ablation. The ablation needle comprises a sheath sleeve and a microwave ablation needle body. The microwave ablation needle can be inserted in the sheath sleeve to form a biopsy needle. The microwave ablation needle comprises the stab head, a needle rod fixedly connected to the tail end of the stab head and a coaxial cable penetrating the needle rod. The stab head is made of a stainless steel material, the surface of the stab head is provided with a nickel layer that is 10-20 microns thick, a titanium dioxide layer that is 30-40 microns thick is positioned outside the nickel layer, and a zirconia coating that is 20-40 microns is positioned outside the titanium dioxide layer. The stab head takes stainless steel as a base material; and the nickel layer, the titanium dioxide layer and the zirconia coating are added on the surface of the stab head. A porous structure of the nickel layer is utilized, the adhesive force between the stainless steel and titanium dioxide is added, the titanium dioxide layer is resistant to corrosion, non-toxic, free of stimulation and high in density; the zirconia coating is added on the outer surface of the titanium dioxide layer, so that the stab head is easy to clean, the storage difficulty is reduced; the titanium dioxide layer and the zirconia coating are thin, and microwave radiation energy is not affected basically.
Description
Technical Field
The invention relates to a microwave ablation needle with a biopsy function and a manufacturing method of a puncture head of the microwave ablation needle, and belongs to the technical field of microwave ablation.
Background
With the progress of modern science and technology and oncology, the domestic microwave tumor ablation technology has made a breakthrough tension in the last decade. The microwave tumor ablation is to utilize microwave energy to act on tissues to generate heat effect, the central temperature of a thermal field can reach more than 100 ℃ within several minutes to tens of minutes, and tumor tissues are coagulated and inactivated at instant high temperature to achieve the purpose of tumor ablation treatment. The microwave tumor ablation is to insert a microwave ablation needle into the focus of human tissue and continuously emit microwave energy from the front end of the microwave ablation needle to perform an operation, and is suitable for the ablation operation of the whole body solid tumor due to high efficiency, small wound and controllable action depth and range of the tissue.
Most of the existing microwave ablation needles also have the function of a biopsy needle, but in order to realize two functions of biopsy and microwave ablation, zirconia or pure copper materials are mostly used for the puncture head. The zirconium oxide has poor conductivity, is not beneficial to ablation operation, and the pure copper material has good conductivity, but is not corrosion-resistant and has poor compactness; thus, the requirements for preservation and cleaning are high, and the use cost is high.
Disclosure of Invention
The invention aims to solve the technical problems that: overcomes the defects of the technology and provides a microwave ablation needle with a biopsy function by using a novel puncture head.
In order to solve the above technical problem, a first technical solution proposed by the present invention is: a microwave ablation needle with biopsy function comprises a sheath and a microwave ablation needle; the microwave ablation needle can be inserted into the sheath to form a biopsy needle; the microwave ablation needle comprises a puncture head, a needle rod fixedly connected to the tail end of the puncture head and a coaxial cable arranged in the needle rod in a penetrating manner; the puncture head is fixedly arranged at the front end of the coaxial cable and is in short circuit with the inner conductor of the coaxial cable; the needle rod is sleeved on the tail end of the puncture head and the coaxial cable; the tail end of the coaxial cable is provided with a coaxial radio frequency connector; a handle is arranged at the tail end of the needle rod; the handle is internally provided with a water inlet cavity and a water outlet cavity which are separated by a water-resisting ring; the water inlet cavity and the water outlet cavity are both provided with a quick connection water nozzle; the needle bar is internally provided with a water inlet pipe sleeved on the coaxial cable, a water inlet channel is formed in a gap between the water inlet pipe and the coaxial cable, a water outlet channel is formed in a gap between the water inlet pipe and the needle bar, and the rear parts of the water inlet channel and the water outlet channel are respectively communicated with the water inlet cavity and the water outlet cavity; the puncture head is coaxial with the front end of the coaxial cable; the tail end of the stabbing head is fixedly connected with a water plugging shaft; the water plugging shaft is positioned in the needle rod and sleeved on the coaxial cable; the water plugging shaft is fixed with the coaxial cable in a sealing way; the puncture head is made of stainless steel material, the surface of the puncture head is provided with a nickel layer of 10 to 20 microns, and the outside of the nickel layer is provided with a titanium dioxide layer of 30 to 40 microns; the titanium dioxide layer is provided with a zirconium oxide coating layer of 20 to 40 microns; the direct of the stabbing head and the needle rod is 1.3 mm.
The scheme is further improved in that: the stabbing head is a three-edged stabbing head.
The scheme is further improved in that: the handle with the needle bar junction is provided with the protective sheath, the protective sheath is established at the needle bar afterbody.
The scheme is further improved in that: the needle bar is a zirconia ceramic tube.
The invention provides a microwave ablation needle with a biopsy function, which is formed by matching a puncture head and a sheath to deal with more complex conditions. Meanwhile, the stabs take stainless steel as a base material; a nickel layer, a titanium dioxide layer and a zirconium oxide layer are added on the surface; the porous structure of the nickel layer is utilized to increase the adhesive force between the stainless steel and the titanium dioxide and ensure the firmness of the titanium dioxide layer; the titanium dioxide layer is corrosion-resistant, non-toxic, non-irritant and high in compactness, and the zirconia layer is added on the surface of the titanium dioxide layer to further increase the compactness, so that the stabbing head is easy to clean, and the storage difficulty is reduced; meanwhile, the titanium dioxide layer and the zirconium oxide layer are thin, and the microwave radiation energy is basically not influenced.
In order to solve the above technical problem, a second technical solution proposed by the present invention is: a method for manufacturing a puncture head for a microwave ablation needle with biopsy function is characterized by comprising the following steps:
(1) the stainless steel material is made into a prismatic shape required by the thorn head, and then the surface is polished, cleaned, degreased, passivated and cleaned by pure water;
(2) electroplating a nickel layer with the thickness of 10 to 20 microns on the surface of the prismatic material;
(3) cleaning the electroplated material with pure water, and naturally drying;
(4) mixing and filtering a chemical pure ammonium fluotitanate solution and an analytical pure boric acid solution to prepare a mixed solution, wherein the concentration of the ammonium fluotitanate is 0.25-0.35mol/L, and the concentration of the boric acid is 0.2-0.4 mol/L;
(5) soaking the material prepared in the step (3) in the mixed solution prepared in the step (4), heating the mixed solution in water bath at 45-55 ℃, taking out the mixed solution after soaking for 20-25 hours, and naturally drying the mixed solution;
(6) heating the material prepared in the previous step under the protection of nitrogen, keeping the temperature at 800-900 ℃, continuing for 50-60 minutes, then stopping heating, and naturally cooling;
(7) spraying a 20-40 micron zirconium oxide coating on the surface of the cooled material by using a plasma spraying technology.
The scheme is further improved in that the formula of the electroplating solution used in the step (b) is as follows: NiSO4 & 7H2O is more than or equal to 400g/L and less than or equal to 500g/L, H3BO3 is more than or equal to 30 g/L and less than or equal to 42g/L, an anode active agent is more than or equal to 5g/L and less than or equal to 25g/L, and a surfactant is more than or equal to 0.5g/L and less than or equal to 1 g/L.
The scheme is further improved in that: the anode active agent is one of sodium dodecyl sulfate or sodium n-octyl sulfate; the surfactant is one of sodium chloride or nickel chloride.
In order to solve the above technical problem, a third technical solution proposed by the present invention is: a puncture head for a microwave ablation needle with a biopsy function is in a triangular shape, the base material of the puncture head is stainless steel, and the outer side of the stainless steel is sequentially provided with a nickel layer, a titanium dioxide layer and a zirconium oxide layer; the nickel layer is 10 to 20 microns thick; the titanium dioxide layer is 30 to 40 microns thick; the zirconia layer is 20 to 40 microns thick; the diameter of the puncture head is 1.3 mm.
The invention provides a puncture head for a microwave ablation needle with a biopsy function and a manufacturing method thereof, wherein stainless steel is used as a base material, and a nickel layer, a titanium dioxide layer and a zirconium oxide layer are added on the surface of the stainless steel; the porous structure of the nickel layer is utilized to increase the adhesive force between the stainless steel and the titanium dioxide and ensure the firmness of the titanium dioxide layer; the titanium dioxide layer is corrosion-resistant, non-toxic, non-irritant and high in compactness, and the zirconia layer is added on the surface of the titanium dioxide layer to further increase the compactness, so that the stabbing head is easy to clean, and the storage difficulty is reduced; meanwhile, the titanium dioxide layer and the zirconium oxide layer are thin, and the microwave radiation energy is basically not influenced.
Drawings
Fig. 1 is a schematic structural view of a microwave ablation needle according to a preferred embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the bayonet of FIG. 1.
Fig. 3 is a schematic diagram of the sheath construction.
The numbers in the figures are as follows: 1-thorn head, 2-needle bar, 3-coaxial cable, 4-handle, 5-inner conductor, 6-water outlet cavity, 7-water inlet cavity, 8-water isolation ring, 9-water blocking shaft, 10-water inlet pipe, 11-water inlet nozzle and 12-water outlet nozzle. 13-protective sheath.
Detailed Description
Examples
The microwave ablation needle with biopsy function of the embodiment, as shown in fig. 1 to 3, includes a sheath and a microwave ablation needle; the microwave ablation needle may be inserted into the sheath to form a biopsy needle. Wherein,
the microwave ablation needle comprises a triangular puncture head 1, a needle rod 2 fixedly connected to the tail end of the puncture head 1 and a coaxial cable 3 arranged in the needle rod 2 in a penetrating manner; the puncture head 1 is fixedly arranged at the front end of the coaxial cable 3 and is in short circuit with the inner conductor 5 of the coaxial cable 3; the needle bar 2 is sleeved on the tail end of the puncture head 1 and the coaxial cable 3; the tail end of the coaxial cable 3 is provided with a coaxial radio frequency connector; the tail end of the needle bar 2 is provided with a handle 4; the handle 4 is internally provided with a water inlet cavity 7 and a water outlet cavity 6 which are separated by a water-isolating ring 8; the inside of the needle rod 2 is provided with a water inlet pipe 10 sleeved on the coaxial cable 3, a water inlet channel is formed by a gap between the water inlet pipe 10 and the coaxial cable 3, a water outlet channel is formed by a gap between the water inlet pipe 10 and the needle rod 2, and the rear parts of the water inlet channel and the water outlet channel are respectively communicated with the water inlet cavity 7 and the water outlet cavity 6; the puncture head 1 is coaxial with the front end of the coaxial cable 3; the tail end of the puncture head 1 is fixedly connected with a water plugging shaft 9; the water plugging shaft 9 is positioned in the needle bar 2 and sleeved on the coaxial cable 3; the water plugging shaft 9 is fixed with the coaxial cable 3 in a sealing way.
The diameters of the thorn head 1 and the needle bar 2 are 1.3mm, which is fine.
The joint of the handle 4 and the needle bar 2 is provided with a protective sleeve 13, and the protective sleeve 13 is sleeved at the tail part of the needle bar 2.
In order to prevent tissue adhesion during ablation, the needle rod 2 is a zirconia ceramic tube.
The water inlet cavity 7 and the water outlet cavity 6 are respectively provided with a water inlet nozzle 11 and a water outlet nozzle 12 which are used for being rapidly connected with a water pipe to form circulating water cooling.
The puncture head 1 is made of stainless steel, the surface of the puncture head is provided with a nickel layer of 10 to 20 microns, and a titanium dioxide layer of 30 to 40 microns is arranged outside the nickel layer; the titanium dioxide layer has a 20 to 40 micron coating of zirconium oxide thereon.
The thorn head is manufactured by the following process:
(1) cutting and molding the stainless steel material according to the shape of the needed stabs, and then carrying out mechanical abrasive paper polishing, cleaning and oil removal, passivation treatment and pure water cleaning on the surface;
(2) electroplating nickel on the formed material, wherein the electroplating formula is as follows: NiSO4 & 7H2O is more than or equal to 400g/L and less than or equal to 500g/L, H3BO3 is more than or equal to 30 g/L and less than or equal to 42g/L, an anode active agent is more than or equal to 5g/L and less than or equal to 25g/L, and a surfactant is more than or equal to 0.5g/L and less than or equal to 1 g/L; the anode active agent used in this example was sodium lauryl sulfate; the surfactant used was nickel chloride; the temperature is maintained at 60 ℃, the current density is 8A/dm2, the time is about 45 seconds, the thickness of the finally obtained plating layer is about 15 micrometers, and the current density and the electrifying time are adaptively adjusted to ensure that the thickness of the nickel layer is between 10 and 20 micrometers;
(3) cleaning the surface of the electroplated material with pure water and then naturally drying;
(4) mixing and filtering a chemical pure ammonium fluotitanate solution and an analytical pure boric acid solution to prepare a mixed solution, wherein the concentration of the ammonium fluotitanate is 0.25-0.35mol/L, and the concentration of the boric acid is 0.2-0.4 mol/L;
(5) soaking the material prepared in the third step in the mixed solution prepared in the fourth step for deposition, simultaneously heating the mixed solution in water bath at 45-55 ℃, heating for 20-25 hours, then finishing deposition, taking out, washing with distilled water, and then naturally drying; the deposition time is adjusted to ensure that the titanium layer is between 30 and 40 microns;
(6) heating the material prepared in the previous step by using a nitrogen protection resistance furnace, keeping the temperature at 800-900 ℃, continuing for 50-60 minutes, then stopping heating, and naturally cooling;
(7) spraying a 20-40 micron zirconium oxide coating on the surface of the cooled material by using a plasma spraying technology.
Thus, the stabbing head sequentially comprising the stainless steel, the nickel, the titanium dioxide and the zirconia from inside to outside is obtained, and the zirconia layer on the outermost side can effectively prevent adhesion during ablation; meanwhile, the thermal expansion coefficient of the zirconia is close to that of steel, and the zirconia is not easy to fall off. At the same time, the dense structure of the titanium dioxide provides sufficient protection to the stainless steel base layer on the inside.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. All technical solutions formed by equivalent substitutions fall within the scope of the claims of the present invention.
Claims (8)
1. A microwave ablation needle with biopsy function is characterized in that: comprises a sheath and a microwave ablation needle; the microwave ablation needle can be inserted into the sheath to form a biopsy needle; the microwave ablation needle comprises a puncture head, a needle rod fixedly connected to the tail end of the puncture head and a coaxial cable arranged in the needle rod in a penetrating manner; the puncture head is fixedly arranged at the front end of the coaxial cable and is in short circuit with the inner conductor of the coaxial cable; the needle rod is sleeved on the tail end of the puncture head and the coaxial cable; the tail end of the coaxial cable is provided with a coaxial radio frequency connector; a handle is arranged at the tail end of the needle rod; the handle is internally provided with a water inlet cavity and a water outlet cavity which are separated by a water-resisting ring; the water inlet cavity and the water outlet cavity are both provided with a quick connection water nozzle; the needle bar is internally provided with a water inlet pipe sleeved on the coaxial cable, a water inlet channel is formed in a gap between the water inlet pipe and the coaxial cable, a water outlet channel is formed in a gap between the water inlet pipe and the needle bar, and the rear parts of the water inlet channel and the water outlet channel are respectively communicated with the water inlet cavity and the water outlet cavity; the puncture head is coaxial with the front end of the coaxial cable; the tail end of the stabbing head is fixedly connected with a water plugging shaft; the water plugging shaft is positioned in the needle rod and sleeved on the coaxial cable; the water plugging shaft is fixed with the coaxial cable in a sealing way; the puncture head is made of stainless steel material, the surface of the puncture head is provided with a nickel layer of 10 to 20 microns, and the outside of the nickel layer is provided with a titanium dioxide layer of 30 to 40 microns; the titanium dioxide layer is provided with a zirconium oxide coating layer of 20 to 40 microns; the diameter of the needle rod and the puncture head is 1.3 mm.
2. The package of claim 1, further comprising: the stabbing head is a three-edged stabbing head.
3. The microwave ablation needle with biopsy function according to claim 1, wherein: the handle with the needle bar junction is provided with the protective sheath, the protective sheath is established at the needle bar afterbody.
4. The microwave ablation needle with biopsy function according to claim 1, wherein: the needle bar is a zirconia ceramic tube.
5. A method for manufacturing a puncture head for a microwave ablation needle with biopsy function is characterized by comprising the following steps:
(1) the stainless steel material is made into a prismatic shape required by the thorn head, and then the surface is polished, cleaned, degreased, passivated and cleaned by pure water;
(2) electroplating a nickel layer with the thickness of 10 to 20 microns on the surface of the triangular material;
(3) cleaning the electroplated material with pure water, and naturally drying;
(4) mixing and filtering a chemical pure ammonium fluotitanate solution and an analytical pure boric acid solution to prepare a mixed solution, wherein the concentration of the ammonium fluotitanate is 0.25-0.35mol/L, and the concentration of the boric acid is 0.2-0.4 mol/L;
(5) soaking the material prepared in the step (3) in the mixed solution prepared in the step (4), heating the mixed solution at 45-55 ℃, taking out the mixed solution after heating for 20-25 hours, and naturally drying the mixed solution;
(6) heating the material prepared in the previous step under the protection of nitrogen, keeping the temperature at 800-900 ℃, continuing for 50-60 minutes, then stopping heating, and naturally cooling;
(7) spraying a 20-40 micron zirconium oxide coating on the surface of the cooled material by using a plasma spraying technology.
6. The method for manufacturing a puncture head for a microwave ablation needle having a biopsy function according to claim 5, wherein the formula of the plating solution used in the step (b) is: NiSO4 & 7H2O is more than or equal to 400g/L and less than or equal to 500g/L, H3BO3 is more than or equal to 30 g/L and less than or equal to 42g/L, an anode active agent is more than or equal to 5g/L and less than or equal to 25g/L, and a surfactant is more than or equal to 0.5g/L and less than or equal to 1 g/L.
7. The method of manufacturing a puncture head for a microwave ablation needle having a biopsy function according to claim 6, characterized in that: the anode active agent is one of sodium dodecyl sulfate or sodium n-octyl sulfate; the surfactant is one of sodium chloride or nickel chloride.
8. A bayonet made by the method of manufacture of claim 5, wherein: the bayonet is in a triangular shape, the base material of the bayonet is stainless steel, and the outer side of the stainless steel is sequentially provided with a nickel layer, a titanium dioxide layer and a zirconium oxide layer; the nickel layer is 10 to 20 microns thick; the titanium dioxide layer is 30 to 40 microns thick; the zirconia layer is 20 to 40 microns thick; the diameter of the puncture head is 1.3 mm.
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| CN201510331623.1A CN104905874A (en) | 2015-06-16 | 2015-06-16 | Microwave ablation needle having biopsy function and method for manufacturing stab head thereof |
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| CN201510331623.1A CN104905874A (en) | 2015-06-16 | 2015-06-16 | Microwave ablation needle having biopsy function and method for manufacturing stab head thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106109011A (en) * | 2016-08-30 | 2016-11-16 | 北京天助畅运医疗技术股份有限公司 | A kind of blood vessel Microwave Coagulation water-cooled conduit |
| CN106109059A (en) * | 2016-08-05 | 2016-11-16 | 北京爱康宜诚医疗器材有限公司 | Borrowed structure |
| CN110623724A (en) * | 2019-09-05 | 2019-12-31 | 南京桑迪医疗科技有限公司 | Radio frequency plasma needle knife external water-cooling anti-inflammation device and use method thereof |
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| CN110623724B (en) * | 2019-09-05 | 2020-07-24 | 南京桑迪医疗科技有限公司 | Radio frequency plasma needle knife external water-cooling anti-inflammation device and use method thereof |
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