JP2021534942A - カテーテルシステムのための低引張セプタム - Google Patents
カテーテルシステムのための低引張セプタム Download PDFInfo
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- 238000001990 intravenous administration Methods 0.000 claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000008280 blood Substances 0.000 description 12
- 210000004369 blood Anatomy 0.000 description 12
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 210000003462 vein Anatomy 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 235000021476 total parenteral nutrition Nutrition 0.000 description 1
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Abstract
Description
カテーテルは、様々な輸液療法のために一般的に使用される。例えば、カテーテルは、通常の生理食塩水、各種薬剤、および全非経口栄養剤などの流体を患者に注入するために使用されてもよい。カテーテルはまた、患者から血液を引き出すために使用されてもよい。
本開示は、一般に、カテーテルアセンブリのためのセプタおよび関連するシステムおよび方法に関する。いくつかの実施形態では、セプタムは、セプタムに関して移動される導入針の引張力を低減してもよい。いくつかの実施形態では、引張力を低減することは、患者の快適性を向上させ、最初の試みでの最初の穿刺の成功または静脈内へのカテーテルの配置を容易にしてもよい。いくつかの実施形態では、引張力は、導入針と接触するセプタムの表面積を減少させることによって低減されてもよい。
今、図1A〜1Cを参照すると、先行技術のカテーテルアセンブリ10が図示されている。カテーテルアセンブリ10は、カテーテルアセンブリ10のカテーテルアダプタ14のルーメン内に配置されたセプタム12を含んでもよい。カテーテル16は、カテーテルアダプタ14から末端に延在してもよい。セプタム12は、例えば、BD INTIMA II(商標)IVカテーテルのセプタムに対応していてもよい。カテーテルアセンブリ10のカテーテル16が患者の静脈内に配置されていることをユーザが確認した後、カテーテルアセンブリ10の導入針18は、カテーテル16のみを静脈内の適所に残して、患者およびカテーテルアセンブリ10から引き出されてもよい。図1Cに図示されているように、セプタム12内に配置された導入針18の全体の部分がセプタム12に接触して、導入針18が患者およびカテーテルアセンブリ10から基端に引き出される際に高い引張力を生じさせることがある。導入針18とセプタム12との間の大きな摩擦は、導入針18が患者から引き出される際に患者に不快感を与え、および/またはカテーテルアセンブリ10のカテーテル16が患者の静脈から外れてしまうことがある。
Claims (20)
- 末梢静脈内カテーテルアセンブリが、
セプタムであって、
末端端部および基端端部を有する本体を備え、前記本体の前記末端端部および基端端部がシールされている、本体と、
前記本体の外表面内に配置され、前記本体の長手方向軸に沿って配向されたスロットであって、前記スロットは、前記本体の前記末端端部から離間した末端端部と、前記本体の前記基端端部から離間した基端端部とを備える、スロットと、を備えるセプタムと、
前記スロットを通って延在する導入針と、
を備える、末梢静脈内カテーテルアセンブリ。 - 前記導入針が前記スロットの底部から離間している、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- カテーテルアダプタをさらに備え、前記セプタムが前記カテーテルアダプタ内に配置され、前記カテーテルアダプタの内表面が前記スロットをシールしている、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- セプタムハウジングをさらに備え、前記セプタムが前記セプタムハウジング内に少なくとも部分的に配置され、前記セプタムハウジングの内表面が前記スロットをシールしている、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- 前記セプタムがエラストマーである、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- 前記セプタムが単一ユニットとしてモノリシックに形成されている、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- 前記スロットの長さが前記本体の長さの過半に対応している、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- 前記スロットの深さが前記本体の幅の半分よりも大きい、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- 前記導入針のベベルが上向きであり、前記スロットが下向きである、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- 前記本体内に配置された半環状溝をさらに備え、前記半環状溝は、前記本体の周囲の一部の周りに延在しており、前記スロットは、前記半環状溝の第1の端部と前記半環状溝の第2の端部との間に延在している、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- 前記カテーテルアダプタが、一体化された延長管を有する側面ポートを備える、請求項1に記載の末梢静脈内カテーテルアセンブリ。
- 末梢静脈内カテーテルアセンブリが、
カテーテルアダプタと、
前記カテーテルアダプタのルーメン内に配置されたセプタムであって、
末端端部および基端端部を有する本体であって、前記本体の前記末端端部および基端端部がシールされている、本体と、
前記セプタム内に配置され前記本体の長手方向軸に沿って配向されたチャネルであって、前記チャネルが前記本体の内表面によって形成されている、チャネルと、
前記本体の外表面から前記チャネルに向かって延在するスリットであって、前記スリットは前記本体の前記長手方向軸に沿って配向され、前記スリットは、前記セプタムが前記カテーテルアダプタの前記ルーメン内に配置されたときに閉じられ、前記セプタムは、単一ユニットとしてモノリシックに形成されている、スリットと、を備える、セプタムと、
前記チャネルを通って延在する導入針であって、前記導入針が前記本体の前記内表面から離間している、導入針と、を備える、末梢静脈内カテーテルアセンブリ。 - 前記セプタムがエラストマーである、請求項12に記載の末梢静脈内カテーテルアセンブリ。
- 前記セプタムが、前記スリットを開いた状態で膨らんだ位置に成形されて前記チャネルの形成を可能している、請求項13に記載の末梢静脈内カテーテルアセンブリ。
- 前記スリットが前記本体の長さにわたって部分的に延在している、請求項12に記載の末梢静脈内カテーテルアセンブリ。
- 前記スリットが、前記本体の中央に配置されている、請求項12に記載の末梢静脈内カテーテルアセンブリ。
- 前記チャネルの少なくとも一部が全体としてシリンダ状である、請求項12に記載の末梢静脈内カテーテルアセンブリ。
- 前記チャネルの長さが、前記本体の長さの過半に対応している、請求項12に記載の末梢静脈内カテーテルアセンブリ。
- 前記本体内に配置された半環状または環状溝をさらに備え、前記半環状または環状溝は、前記本体の周囲の一部の周りに延在しており、前記スリットは、前記半環状または環状溝を通って延在している、請求項12に記載の末梢静脈内カテーテルアセンブリ。
- 前記カテーテルアダプタが、一体化された延長管を有する側面ポートを備える、請求項12に記載の末梢静脈内カテーテルアセンブリ。
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US20220387762A1 (en) | 2022-12-08 |
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US11446472B2 (en) | 2022-09-20 |
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