JP2000354626A5 - - Google Patents
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- Publication number
- JP2000354626A5 JP2000354626A5 JP1999168158A JP16815899A JP2000354626A5 JP 2000354626 A5 JP2000354626 A5 JP 2000354626A5 JP 1999168158 A JP1999168158 A JP 1999168158A JP 16815899 A JP16815899 A JP 16815899A JP 2000354626 A5 JP2000354626 A5 JP 2000354626A5
- Authority
- JP
- Japan
- Prior art keywords
- nickel
- titanium
- alloy
- shape
- recovery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000011084 recovery Methods 0.000 description 5
- UIMGJWSPQNXYNK-UHFFFAOYSA-N azane;titanium Chemical class N.[Ti] UIMGJWSPQNXYNK-UHFFFAOYSA-N 0.000 description 4
- 229910001000 nickel titanium Inorganic materials 0.000 description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- -1 nickel-titanium-cobalt Chemical compound 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 210000001519 tissues Anatomy 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Description
本発明の穿刺針（20）においては、少なくともテーパー形状部（24）が、回復温度が体温付近、例えば、３０〜４０℃、より好ましくは３２〜３６℃、更に好ましくは３２〜３３℃である形状記憶合金で形成される。また、形状記憶合金は生体組織に対して悪影響を及ぼさないものであることが好ましく、具体的には、ニッケル−チタン合金、ニッケル−チタン−コバルト合金またはニッケル−チタン−銅合金を使用することができ、特にニッケル−チタン合金であることが生体適合性の点からは好ましい。ニッケル−チタン合金を用いる場合、回復温度は、ニッケルとチタンの配合比率を変化させることによって、例えば３０〜１２０℃の範囲で自由に変えることができる。また、母相における加工処理、すなわち記憶処理の条件を適宜変化させることによって、回復温度を微調整することができる。このようにして、ニッケル−チタン合金の回復温度を所定の温度にすることは、既に公知である。形状記憶合金は、形状を回復した後、これを冷却しても形状回復前の形状に戻らない性質、即ち一方向性を有するものであってよい。
In the puncture needle (20) of the present invention, at least the tapered shape portion (24) has a recovery temperature near the body temperature, for example, 30 to 40 ° C, more preferably 32 to 36 ° C, still more preferably 32 to 33 ° C. It is made of shape memory alloy. Further, the shape memory alloy is preferably one that does not adversely affect the biological tissue, and specifically, a nickel-titanium alloy, a nickel-titanium-cobalt alloy or a nickel-titanium-copper alloy may be used. It is possible, and a nickel-titanium alloy is particularly preferable from the viewpoint of biocompatibility. When a nickel-titanium alloy is used, the recovery temperature can be freely changed, for example, in the range of 30 to 120 ° C. by changing the blending ratio of nickel and titanium. Further, the recovery temperature can be finely adjusted by appropriately changing the conditions of the processing treatment in the matrix, that is, the storage treatment. It is already known that the recovery temperature of the nickel-titanium alloy is set to a predetermined temperature in this way. The shape memory alloy may have a property that it does not return to the shape before the shape recovery even if it is cooled after the shape is restored, that is, it has a unidirectional property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11168158A JP2000354626A (en) | 1999-06-15 | 1999-06-15 | Medical puncture needle and medical puncture needle unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11168158A JP2000354626A (en) | 1999-06-15 | 1999-06-15 | Medical puncture needle and medical puncture needle unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000354626A JP2000354626A (en) | 2000-12-26 |
| JP2000354626A5 true JP2000354626A5 (en) | 2005-10-06 |
Family
ID=15862897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11168158A Pending JP2000354626A (en) | 1999-06-15 | 1999-06-15 | Medical puncture needle and medical puncture needle unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000354626A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2881353B1 (en) * | 2005-02-03 | 2008-12-05 | Vygon Sa | IMPROVEMENT TO PUNCTURAL BITS AND CATHETER TUBES |
| CN109331346B (en) * | 2018-07-27 | 2019-10-11 | 尚华 | A kind of memory metal optical fiber puncture needle tubing |
| WO2020019306A1 (en) * | 2018-07-27 | 2020-01-30 | 尚华 | Optical fiber puncture needle tube and application thereof |
| WO2020019307A1 (en) * | 2018-07-27 | 2020-01-30 | 尚华 | Memory metal optical fiber puncture needle tube |
| CN109528242B (en) * | 2018-07-27 | 2023-05-26 | 尚华 | Intravascular memory metal puncture needle and application method thereof |
-
1999
- 1999-06-15 JP JP11168158A patent/JP2000354626A/en active Pending
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