WO1993015867A1 - Methode de traitement d'une matiere metallique destinee a des instruments medicaux - Google Patents
Methode de traitement d'une matiere metallique destinee a des instruments medicaux Download PDFInfo
- Publication number
- WO1993015867A1 WO1993015867A1 PCT/JP1993/000169 JP9300169W WO9315867A1 WO 1993015867 A1 WO1993015867 A1 WO 1993015867A1 JP 9300169 W JP9300169 W JP 9300169W WO 9315867 A1 WO9315867 A1 WO 9315867A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- titanium
- corrosion resistance
- medical
- metal
- metal material
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
- B23H7/08—Wire electrodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
Definitions
- Patent application title Method for processing medical metal materials
- the disclosed technology belongs to the field of processing technology of a metal material which is a material of a medical device such as a so-called implant material or a surgical device to be embedded in a living body for treatment or the like.
- Drug administration, health care, and the like also make a significant contribution, but much to the remarkable progress in surgical treatments such as surgery.
- implant materials used in living organisms such as implanted in the human body, have been developed due to improvements in biological and anatomical techniques. It is becoming.
- metal materials used for medical devices such as implant materials and surgical tools are generally called medical metal materials, and when used, they are subject to the biochemical atmosphere and biochemical environment in living organisms. It is strictly required to maintain non-leaching properties and sufficient corrosion resistance, and to maintain a constant compatibility without causing harmful effects over time.
- titanium metal Titanium base metal
- titanium metal is currently used as a medical metal material, it is a matter of course that precision metal fabrication and precision machining are used in the processing of titanium metal material, as a matter of course. Is required.
- titanium metal is superior as a medical metal material in terms of non-elution to living organisms and high corrosion resistance, but it is difficult to improve its metallurgical properties. It is a metal with significant difficulty in machinability.
- copper or copper alloy is used for the electrode wire used in such an electric discharge machine in terms of conductivity, strength, durability and the like.
- the purpose of the invention of this application is to solve the problems in the machinability by electric discharge machining when using titanium metal based on the above-mentioned conventional technology as a medical metal material, and to cover the electrode wire.
- Theoretical analysis of the peripheral technologies of the discharge processing technology which has been accumulated up to now, and the accumulation of experimental data for medical metal materials of processed metal, and the high accuracy and high corrosion resistance by examining these analyses.
- Medical metal materials Based on the repetition of experiments on the application of processing technology to materials, it produces non-eluting properties to the living body and high corrosion resistance, enabling it to be processed freely as a titanium metal medical metal material. It is intended to provide an excellent method of processing a medical metal material, which is beneficial for the field of metal technology in the field.
- the inventor conducted a multi-disciplinary analysis and study of the EDM technology in alloy machining and its peripheral technology through theory and experiments.
- the electrode wire used for the EDM was made of titanium or titanium base metal, Alternatively, by using platinum or a platinum alloy to which a platinum group element is added in a predetermined manner, titanium or a titanium alloy as a medical metal material is non-eluting in a living body.
- the technology that can maintain high corrosion resistance and can perform high-precision machining with sufficient electric discharge machining has been learned, and the way of its practical application has been expanded.
- the invention according to the present invention is intended to solve the above-mentioned problems by providing an implant material for a living body such as a human body, a medical metal material used for a medical device such as a surgical tool, and the like.
- a medical metal material used for a medical device such as a surgical tool
- titanium or titanium alloy as the material
- titanium metal or platinum or a platinum group element was added to the electrode wire
- electrical discharge machining in the same manner as in the more general embodiment using platinum metal, the original excellent characteristics of the medical metal material can be fully exhibited, and impurities can be similarly mixed from the processing jig. No prejudice, no harm It has taken technical measures to provide excellent medical equipment.
- Table 1 shows experimental examples together with examples and known examples.
- the shape of the material after release is 1.n 0 mm, width 10. nn mm, umami 1 10.n rimm
- the electric discharge machine used may be an ordinary wire-electric discharge machine, but the material of the electrode wire used in the invention of this application is J 1 S 1 type, J 1 S 1
- titanium metal such as J2S2 or JIS3, or a metal such as J1S12.
- platinum which is one of the few metals confirmed in animal tests, or platinum base metal (abbreviated as platinum metal) to which a predetermined amount of a platinum group element has been added, can be used as a medical metal material. It has been confirmed by preliminary experiments that the excellent non-elutability and high corrosion resistance of titanium base metal (abbreviated as titanium metal) are not impaired at all.
- the above-mentioned electrode wire is manufactured by a known melting and processing method.
- a titanium rod suitable for JIS type 2 titanium or j IS 1 type 2 titanium base metal is heat-treated, wire-drawn, and, for platinum metal,
- the platinum metal is melted by arc melting, which is also a well-known melting technique, and then heat-treated and drawn to form a 0.2 mm diameter and 300 m length, respectively.
- a wire was produced.
- palladium, iridium, rhodium and noretenium are platinum group elements to be added and blended as platinum metal, and the mechanical properties of the wire rod as an electrode wire are used. Ideal in terms of properties and corrosion resistance, and ideally, the addition amount should be 30% or less from the viewpoint of additivity. This has been confirmed by experiments.
- JIS 2 metal materials and JIS 12 metal bases which are currently the best in biological tests and animal tests, as well as clinical tests, are used.
- the pulse width was 0.15 to 1.85 s
- the pulse pause time was 2 to 16 s
- the current peak value was 4.5 to 5 for each condition change range. 8 A, no-load voltage of 30 to 100 V, electrode wire feed speed of 6 to 15 m / min, electrode wire tension of 0.1 to 2.0 kgf, machining speed of 0.1
- the specific processing conditions could be processed with high accuracy as designed using non-processed medical metal materials.
- Example No. 1 pure titanium JIS type 2 was used as the medical metal material, and the electrode wire was not used. Pure titanium This is an embodiment using two types of JIS, with a pulse width of 0.2 ns, a pulse pause time of 12.0 s, a current peak value of 2.09 OA, and a no-load voltage of 100 V.
- the experimental data was obtained at an electrode wire feed rate of 7. O m / mi ⁇ , an electrode wire tension of 1. O kgf, and a processing speed of 0.5 m mz 'min.
- JIS 12 type 2 titanium alloy material was used as the medical metal material
- copper was used for the first processing as the electrode wire
- copper was used for the second processing.
- the surface was subjected to electric discharge machining at 100 m.
- the first discharge application condition was that the pulse width was 0.5 s, the pulse pause time was 16.0 s, and the current peak value was 18 OA, no-load voltage of 70 V, electrode wire feed rate of 7.0 m / ⁇ mi ⁇ , electrode wire tension of 1.0 kgf, and processing speed of 2.0 mm / 'min.
- the second electric discharge machining conditions were a pulse width of 0.2 us, a pulse pause time of 12.0 s, a current peak value of 2.09 OA, a no-load voltage of 90.0 V, and electrode wires.
- the experiment was performed at a feed rate of 7, O m / min, an electrode wire tension of 1.0 kgf, and a processing speed of 1. Siri mz min.
- Example No. 4 The experimental example of Example No. 4 was obtained from data obtained by conducting various studies by the inventor, and the electric discharge machining speed for titanium metal, which is a medical metal material, was increased, and the cost was more economical. This indicates that it is a processing condition.
- the titanium metal specimen as a medical metal material prepared as described above was washed with alcohol and then immersed in 35% hydrochloric acid at 80 ° C, which is a corrosion resistance test in a harsh environment.
- Figure 1 shows the results of measuring the amount of titanium eluted over time.
- the amount of titanium eluted from the medical metal material processed according to the invention of the present application is remarkable as compared with the state using a conventional copper electrode wire, which is a known electrode wire. It can be seen that the material is an excellent medical metal material as compared with a titanium material which is a known example.
- the invention's effect is remarkable as compared with the state using a conventional copper electrode wire, which is a known electrode wire.
- a titanium metal medical metal material that has been basically processed is a high-precision processing capable of fully exerting its original function as the medical metal material. Not only can accuracy be easily obtained, there is no contamination from the processing jig, and the excellent corrosion resistance of titanium metal is not impaired at all. High corrosion resistance is sufficiently recognized, and it is possible to produce an excellent medical metal material that does not cause any harmful effects.
- the average life expectancy of human beings can be improved, the quality of health and hygiene can be improved, and the contribution to the livestock industry can be gradually increased.
- the advantage is that it can even be overestimated.
- FIG. 1 is a graph showing the results of measurement data of the dissolution of thidan based on the examples of the invention of this application and experimental examples of known examples.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Dentistry (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Ceramic Engineering (AREA)
- Biomedical Technology (AREA)
- Epidemiology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Materials For Medical Uses (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4/61479 | 1992-02-17 | ||
JP6147992A JPH05228737A (ja) | 1992-02-17 | 1992-02-17 | 医用金属材料の加工方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993015867A1 true WO1993015867A1 (fr) | 1993-08-19 |
Family
ID=13172255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000169 WO1993015867A1 (fr) | 1992-02-17 | 1993-02-10 | Methode de traitement d'une matiere metallique destinee a des instruments medicaux |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0584366A4 (ja) |
JP (1) | JPH05228737A (ja) |
CA (1) | CA2129340A1 (ja) |
WO (1) | WO1993015867A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105215495B (zh) * | 2015-10-21 | 2017-10-24 | 贵州黎阳国际制造有限公司 | 一种用于钛合金深盲槽棱角加工的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6381018A (ja) * | 1986-09-25 | 1988-04-11 | Toray Ind Inc | 熱可塑性重合体シ−ト状物の製造装置 |
JPS63203262A (ja) * | 1987-02-19 | 1988-08-23 | Hitachi Metals Ltd | 金型 |
JPS6348656B2 (ja) * | 1982-07-07 | 1988-09-30 | Mitsubishi Shindo Kk |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4012731A1 (de) * | 1989-04-26 | 1990-10-31 | Karl Marx Stadt Tech Hochschul | Verfahren zur herstellung von implantaten mit definierter rauher oberflaeche |
JP2942350B2 (ja) * | 1990-11-28 | 1999-08-30 | 住友電気工業株式会社 | ワイヤ放電加工用電極線 |
-
1992
- 1992-02-17 JP JP6147992A patent/JPH05228737A/ja active Pending
-
1993
- 1993-02-10 CA CA 2129340 patent/CA2129340A1/en not_active Abandoned
- 1993-02-10 EP EP19930904293 patent/EP0584366A4/en not_active Withdrawn
- 1993-02-10 WO PCT/JP1993/000169 patent/WO1993015867A1/ja not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6348656B2 (ja) * | 1982-07-07 | 1988-09-30 | Mitsubishi Shindo Kk | |
JPS6381018A (ja) * | 1986-09-25 | 1988-04-11 | Toray Ind Inc | 熱可塑性重合体シ−ト状物の製造装置 |
JPS63203262A (ja) * | 1987-02-19 | 1988-08-23 | Hitachi Metals Ltd | 金型 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0584366A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP0584366A4 (en) | 1994-07-06 |
CA2129340A1 (en) | 1993-08-18 |
JPH05228737A (ja) | 1993-09-07 |
EP0584366A1 (en) | 1994-03-02 |
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