JP6438398B2 - 磁気素子を針アセンブリに取り付ける方法 - Google Patents
磁気素子を針アセンブリに取り付ける方法 Download PDFInfo
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Description
[形態1]
針アセンブリであって、
ハブと、
該ハブから長手方向軸に沿って遠位に延在するカニューレであって、遠位針先端部を画定するカニューレと、
前記ハブ及び前記カニューレのうち少なくとも1つに含まれる磁気素子であって、磁気軸を画定し、その磁気軸が、前記ハブ及び前記カニューレのうち少なくとも1つに対して所望される所定の配向で整列するように配置される磁気素子と、を備える、針アセンブリ。
[形態2]
前記磁気軸が、前記カニューレの長手方向軸と実質的に同軸状に整列している、形態1に記載の針アセンブリ。
[形態3]
前記磁気素子が円筒形を含む、形態1に記載の針アセンブリ。
[形態4]
前記円筒形磁気素子が中心孔を備え、前記カニューレの一部が中心孔を通過する、形態3に記載の針アセンブリ。
[形態5]
前記磁気素子の孔が前記磁気素子の物理的軸に沿って画定され、前記物理的軸が前記磁気素子の前記磁気軸と平行ではない、形態4に記載の針アセンブリ。
[形態6]
前記磁気素子の前記磁気軸が、前記ハブ及び前記カニューレのうち少なくとも1つに取り付けられる前に所定の配向に整列される、形態1に記載の針アセンブリ。
[形態7]
前記磁気素子が永久磁石を含み、前記磁気軸が磁場への曝露によって整列される、形態1に記載の針アセンブリ。
[形態8]
前記磁気軸の磁気軸を所定の配向に整列するために、前記磁気素子が少なくとも1つの電磁石コイルによって生じる一様磁場内に配置される、形態7に記載の針アセンブリ。
[形態9]
前記磁気素子が、前記ハブ内に画定される陥凹部内に配置される、形態1に記載の針アセンブリ。
[形態10]
前記磁気素子が、前記ハブ内に備えられる安全容器内に配置される、形態1に記載の針アセンブリ。
[形態11]
針アセンブリの使用方法であって、
長手方向軸に沿って遠位針先端部まで延在するカニューレと、磁気軸が前記カニューレの長手方向軸と実質的に同軸状に整列されるように配向される磁気軸を含む磁気素子と、を備える針アセンブリを準備する工程と、
前記磁気素子の位置を追跡し、前記遠位針先端部の位置を判定する工程と、
前記遠位針先端部の追跡された位置を用いて、患者の体内に少なくとも前記遠位針先端部を挿入する工程と、を含む、方法。
[形態12]
前記磁気素子の位置を追跡する工程が三次元空間内で実施される、形態11に記載の使用方法。
[形態13]
磁気素子を針アセンブリに取り付ける方法であって、前記針アセンブリが、長手方向軸に沿って延在するカニューレを備え、
前記磁気素子の磁気軸が磁場と実質的に整列するように、前記磁場内に前記磁気素子を配置する工程と、
前記磁気素子の磁気軸が所望の所定の配向に固定されるように、前記磁気素子を前記磁場と実質的に整列しながら、前記磁気素子を前記針アセンブリの一部に固定する工程と、を含む、方法。
[形態14]
前記磁気素子を前記針アセンブリの一部に固定する工程が、前記磁気素子を前記針アセンブリのハブの一部に接着剤によって固定する工程を含む、形態13に記載の取り付け方法。
[形態15]
前記磁気素子を前記針アセンブリの一部に固定する工程が、その磁気軸が前記カニューレの長手方向軸と実質的に同軸状に整列するように前記磁気素子を固定する工程を含む、形態13に記載の取り付け方法。
[形態16]
前記磁気素子を固定する工程が、前記磁気素子を、前記針アセンブリのハブの安全容器内に光硬化性接着剤によって適所に固定する工程を更に含む、形態13に記載の取り付け方法。
[形態17]
前記磁気素子を配置する工程が、前記磁気素子を、少なくとも1つの電磁石巻線内の磁場内に配置する工程を含む、形態13に記載の取り付け方法。
[形態18]
前記磁気素子が針アセンブリの一部内に配置され、前記針アセンブリの一部が前記少なくとも1つの電磁石巻線内に配置される取付具内に配置される、形態17に記載の取り付け方法。
[形態19]
前記少なくとも1つの電磁石巻線が、第1電磁石巻線を備える少なくとも上側ボビンと、第2電磁石巻線を備える下側コイルボビンと、を備えるアセンブリ内に含まれる、形態18に記載の取り付け方法。
[形態20]
前記磁気素子を配置する工程が、前記磁気素子を、少なくとも1つの電磁石巻線の外部の磁場内に配置する工程を含む、形態13に記載の取り付け方法。
[形態21]
前記磁気素子を配置する工程が、前記磁気素子が陥凹部内で自由に動いて配向するように、前記磁気素子を、前記針アセンブリのハブ及び安全容器のうち一方の内部の陥凹部内に配置する工程を含む、形態13に記載の取り付け方法。
[形態22]
前記磁気素子を磁場内に配置する工程が、前記磁場に対する前記磁気素子の自由な配向を可能にするために、前記陥凹部内にありながら前記磁気素子を振動させる工程を更に含む、形態21に記載の取り付け方法。
[形態23]
針アセンブリであって、
ハブと、
該ハブから長手方向軸に沿って遠位に延在するカニューレであって、遠位針先端部を画定するカニューレと、
前記ハブに含まれる磁気素子であって、前記カニューレの一部がそこを通って延在する孔を含み、磁気軸を画定し、該磁気軸が前記カニューレの長手方向軸と実質的に同軸状に整列するように配置される磁気素子と、を備える、針アセンブリ。
[形態24]
前記ハブが、針用安全部品を収容するための安全容器を備える、形態23に記載の針アセンブリ。
[形態25]
前記安全容器が、前記磁気素子が固定して配置される陥凹部を備え、該陥凹部は、該陥凹部内への固定前に、前記磁気素子を当初動けるようにするための少なくとも1つの円形表面を画定し、前記カニューレが比較的低い透磁率の材料を含む、形態24に記載の針アセンブリ。
[形態26]
前記磁気素子の本体が円筒形であり、該円筒形本体の中心軸と一致する物理的軸を画定し、前記磁気軸が前記中心軸と平行ではない、形態25に記載の針アセンブリ。
[形態27]
前記磁気素子の物理的軸が、前記カニューレの長手方向軸に対して傾いている、形態26に記載の針アセンブリ。
[形態28]
RFIDチップ及びバーコードのうち少なくとも1つが前記針アセンブリに含まれ、その識別を可能にする、形態23に記載の針アセンブリ。
[形態29]
磁気素子の製造方法であって、
細長い棒状の磁性材料を準備する工程と、
前記棒状の磁性材料を、前記棒の長手方向軸と実質的に直交して、少なくとも第1のピースと第2のピースに切断する工程と、
前記第1のピースを前記第2のピースに対して約180度回転する工程と、
前記回転させた第1のピースを前記第2のピースと接続し、磁気素子の物理的軸と実質的に整列した磁気軸を含む磁気素子を形成する工程と、を含む、方法。
[形態30]
前記棒状の磁性材料が実質的に円筒形であり、前記長手方向軸が前記円筒形磁性材料の中心軸と一致し、配向用のすじが前記細長い棒上に含まれて、前記物理的軸及び前記磁気軸の実質的な整列を支援する、形態29に記載の製造方法。
[形態31]
磁気素子を針保持部品に取り付ける方法であって、
前記磁気素子の磁気軸の配向を判定する工程と、
前記磁気素子の磁気軸の配向に、第1の配向用のしるしを付ける工程と、
前記第1の配向用のしるしが前記針保持部品に含まれる第2の配向用のしるしと実質的に整列するように、かつ、前記磁気軸が前記針保持部品から所望の方向に延在するように、磁石を前記針保持部品に挿入する工程と、を含む、方法。
I.支援によるカテーテル留置
II.支援による針/医療用構成要素の誘導
Claims (10)
- 磁気素子を針アセンブリに取り付ける方法であって、前記針アセンブリが、長手方向軸に沿って延在するカニューレを備え、
前記磁気素子の磁気軸が磁場と実質的に整列するように、前記磁場内に前記磁気素子を配置する工程と、
前記磁気素子の磁気軸が所望の所定の配向に固定されるように、前記磁気素子を前記磁場と実質的に整列しながら、前記磁気素子を前記針アセンブリの一部に固定する工程と、を含む、方法。 - 前記磁気素子を前記針アセンブリの一部に固定する工程が、前記磁気素子を前記針アセンブリのハブの一部に接着剤によって固定する工程を含む、請求項1に記載の取り付け方法。
- 前記磁気素子を前記針アセンブリの一部に固定する工程が、その磁気軸が前記カニューレの長手方向軸と実質的に同軸状に整列するように前記磁気素子を固定する工程を含む、請求項1に記載の取り付け方法。
- 前記磁気素子を固定する工程が、前記磁気素子を、前記針アセンブリのハブの安全容器内に光硬化性接着剤によって適所に固定する工程を更に含む、請求項1に記載の取り付け方法。
- 前記磁気素子を配置する工程が、前記磁気素子を、少なくとも1つの電磁石巻線内の磁場内に配置する工程を含む、請求項1に記載の取り付け方法。
- 前記磁気素子が針アセンブリの一部内に配置され、前記針アセンブリの一部が前記少なくとも1つの電磁石巻線内に配置される取付具内に配置される、請求項5に記載の取り付け方法。
- 前記少なくとも1つの電磁石巻線が、第1電磁石巻線を備える少なくとも上側ボビンと、第2電磁石巻線を備える下側コイルボビンと、を備えるアセンブリ内に含まれる、請求項6に記載の取り付け方法。
- 前記磁気素子を配置する工程が、前記磁気素子を、少なくとも1つの電磁石巻線の外部の磁場内に配置する工程を含む、請求項1に記載の取り付け方法。
- 前記磁気素子を配置する工程が、前記磁気素子が陥凹部内で自由に動いて配向するように、前記磁気素子を、前記針アセンブリのハブ及び安全容器のうち一方の内部の陥凹部内に配置する工程を含む、請求項1に記載の取り付け方法。
- 前記磁気素子を磁場内に配置する工程が、前記磁場に対する前記磁気素子の自由な配向を可能にするために、前記陥凹部内にありながら前記磁気素子を振動させる工程を更に含む、請求項9に記載の取り付け方法。
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