JP4530854B2 - 一体型コネクタを備える多内腔カテーテル - Google Patents
一体型コネクタを備える多内腔カテーテル Download PDFInfo
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- 238000003973 irrigation Methods 0.000 claims description 39
- 239000012530 fluid Substances 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
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- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 32
- 230000037431 insertion Effects 0.000 description 32
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- 210000004204 blood vessel Anatomy 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
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- 238000000926 separation method Methods 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 206010067268 Post procedural infection Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000012974 catheter insertion method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 230000008467 tissue growth Effects 0.000 description 1
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- A—HUMAN NECESSITIES
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0194—Tunnelling catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/0069—Tip not integral with tube
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/12—Tube connectors; Tube couplings for joining a flexible tube to a rigid attachment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/003—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
- A61M2025/0031—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M2025/0037—Multi-lumen catheters with stationary elements characterized by lumina being arranged side-by-side
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/0028—Multi-lumen catheters with stationary elements characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/0029—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports
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- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0097—Catheters; Hollow probes characterised by the hub
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Description
1.発明の分野
本発明は、包括的には医療器具に関し、より具体的には、カテーテル先端(tip)の配置後にカテーテルを皮下トンネルに通すこと(subcutaneous tunneling)、および多数のカテーテル内腔のすべてと同時流体連通(simultaneous fluid communication)することを容易にする一体型コネクタを備える多内腔(multi-lumen)カテーテルに関する。
カテーテルは一般的に、体腔、管または血管に挿入して、流体の通過を可能にするか、または通路を拡張させることを可能にする中空の可撓性チューブである。カテーテルは、一時的または長期的な透析治療に使用されることが多い。透析治療は、患者から血液を抜き取り、浄化してから、患者に戻すことが可能である。そのため、透析治療では、患者の血液を患者の体内および体外へ移動させるためにカテーテルが使用される。透析治療中に最適性能を得るために、流入および流出の双方の際に、カテーテル先端を心臓に極めて近いところに配置しなければならない。通常、医療関係者は、二重内腔カテーテルまたは2つの単一内腔カテーテルのいずれかを用いる。しかしながら、これらのタイプのいずれにも特定の欠陥がある。
a)コネクタの一端をカテーテルチューブの端部に接続するステップ、および
b)コネクタの他端をトロカールの先端に接続するステップであって、それにより、カテーテルをトロカールで皮下トンネルに通すことができる、接続するステップ
の多重ステップが必要であった。このトンネル形成装置はほとんどの場合に十分にしっかりしていることがわかっているが、取り外し可能であるという性質から、コネクタおよびチューブをトロカールで案内して皮下トンネルを通すとき、コネクタがカテーテルチューブから離脱する可能性を完全には排除できない。
多内腔カテーテルは多内腔カテーテルチューブを備え、多内腔カテーテルチューブは遠位端および近位端を有し、多内腔カテーテルチューブの内部を複数の内腔が通っている。多内腔カテーテルは、近位端および遠位端を有する単一内腔洗浄チューブ部分も備える。該洗浄チューブ部分の近位端は、カテーテルチューブの遠位端に接続され、それにより、洗浄チューブ部分の単一内腔は、カテーテルチューブ内の内腔の各々と流体連通状態にある。多内腔カテーテルはコネクタをさらに備え、コネクタは近位端および遠位端を有し、コネクタの内部に長手方向キャビティが延在している。キャビティは、コネクタの遠位端付近に連結部分を有し、コネクタの近位端は、洗浄チューブ部分の遠位端に接続され、それにより、コネクタのキャビティは、洗浄チューブ部分の単一内腔と流体連通状態にある。コネクタのキャビティの連結部分は、トロカールのはめ合わせ連結部分を受け取るように構成されている。多内腔カテーテルチューブ、洗浄チューブ部分、およびコネクタの、少なくともその近位端付近の部分は、ほぼ等しい外径を有してもよい。多内腔カテーテルチューブは、2つの内腔を有してもよい。複数の単一内腔延長チューブは、多内腔カテーテルチューブの近位端に接続され、それにより、各延長チューブはカテーテルチューブ内の複数の内腔の1つと流体連通状態にあってもよい。各延長チューブは、流体がカテーテルに対して流入または流出できるように構成された少なくとも1つの開口を有するチューブ壁を有してもよい。延長チューブの少なくとも1つは、少なくとも1つの他の延長チューブより長さが短くてもよい。
以下の説明およびそれに添付されている特許請求の範囲のために、相対的用語の「近位」とは、カテーテルおよびカテーテルの構成部品の、それを血管などの、カテーテルを挿入中の患者の身体部位に挿入する時にカテーテルの挿入端に最も近い部分のことである。反対に、相対的用語の「遠位」とは、カテーテルおよびカテーテルの構成部品の、カテーテルの挿入端から最も遠い部分のことである。
Claims (23)
- 多内腔カテーテルであって、
(a)遠位端および近位端を有し、複数の内腔が内部を通っている多内腔カテーテルチューブと、
(b)近位端および遠位端を有する単一内腔洗浄チューブ部分であって、前記洗浄チューブ部分の前記近位端は前記カテーテルチューブの前記遠位端に接続され、それにより、前記洗浄チューブ部分の前記単一内腔は前記カテーテルチューブ内の前記内腔の各々と流体連通状態にある、単一内腔洗浄チューブ部分と、
(c)近位端および遠位端を有し、長手方向キャビティが内部に延在しているコネクタであって、
前記キャビティは連結部分を有し、
前記コネクタの前記近位端は前記洗浄チューブ部分の前記遠位端に接続され、
それにより、前記コネクタの前記キャビティは前記洗浄チューブ部分の前記単一内腔と流体連通状態にあり、
前記コネクタの前記キャビティの前記連結部分は、医療器具のはめ合わせ連結部分を受け取るように構成されている、コネクタと
を備える、多内腔カテーテル。 - 前記カテーテルチューブと、前記洗浄チューブ部分と、前記コネクタの少なくともその近位端付近の部分とは、ほぼ等しい外径を有する、請求項1に記載の多内腔カテーテル。
- 前記カテーテルチューブは、2つの内腔を有する、請求項1に記載の多内腔カテーテル。
- 複数の単一内腔延長チューブをさらに備え、
前記延長チューブは、前記多内腔カテーテルチューブの前記近位端に接続され、
それにより、各延長チューブは前記カテーテルチューブ内の前記複数の内腔の1つと流体連通状態にある、請求項1に記載の多内腔カテーテル。 - 各延長チューブはチューブ壁を有し、
各チューブ壁に、流体が前記カテーテルチューブ内の前記複数の内腔の1つに対して流入または流出できるように構成された少なくとも1つの開口が設けられている、請求項4に記載の多内腔カテーテル。 - 前記延長チューブの少なくとも1つは、少なくとも1つの他の延長チューブより長さが短い、請求項4に記載の多内腔カテーテル。
- 前記コネクタは、プラスチックまたは金属で構成されている、請求項1に記載の多内腔カテーテル。
- 前記コネクタキャビティの前記連結部分は、はめ合わせ医療器具の連結部分の溝に固定的に係合するように構成されたカラー部分を有する、請求項1に記載の多内腔カテーテル。
- 前記コネクタキャビティの前記連結部分は、はめ合わせ医療器具の連結部分上の複数の雄ねじに固定的に係合するように構成された複数の雌ねじを有する、請求項1に記載の多内腔カテーテル。
- 前記医療器具は、トロカールである、請求項1に記載の多内腔カテーテル。
- 前記医療器具は、シリンジか、または他のカテーテル洗浄器である、請求項1に記載の多内腔カテーテル。
- 前記コネクタは、近位端および遠位端を有する本体と、前記本体の前記近位端から長手方向に延出したスピゴットとを有し、
前記スピゴットは、前記洗浄チューブ部分の前記遠位端で前記単一内腔内にはまり係合する大きさおよび形状を有する、請求項1に記載の多内腔カテーテル。 - 前記スピゴットは、前記洗浄チューブ部分の前記単一内腔内に接着剤で付着される、請求項12に記載の多内腔カテーテル。
- 前記洗浄チューブ部分の前記近位端は、前記カテーテルチューブの前記遠位端に溶着される、請求項1に記載の多内腔カテーテル。
- 前記コネクタは略テーパ状の外形を有し、
前記コネクタは、その近位端付近に、その遠位端付近の第2外径より大きい第1外径を有する、請求項1に記載の多内腔カテーテル。 - 前記コネクタの前記第1外径は、前記洗浄チューブ部分の外径にほぼ等しい、請求項15に記載の多内腔カテーテル。
- 前記カテーテルチューブは、前記カテーテルチューブの外側部分に付着される安定化カフを有する、請求項1に記載の多内腔カテーテル。
- 前記カフは、前記カテーテルの近位端より前記カテーテルの遠位端に近い位置で前記カテーテルに付着される、請求項17に記載の多内腔カテーテル。
- 多内腔カテーテルであって、
(a)遠位端および近位端を有し、複数の内腔が内部を通っている多内腔カテーテルチューブと、
(b)近位端、遠位端および連結部分を有するコネクタと
を備え、
前記コネクタの前記近位端は、前記カテーテルチューブの前記遠位端に接続され、
前記コネクタの前記連結部分は、医療器具のはめ合わせ連結部分を受け取るように構成されており、
前記コネクタは、前記コネクタの前記近位端から延出し、前記カテーテルチューブ内の前記複数の内腔と同数の、複数のプロングをさらに有し、
前記プロングの各々は、前記カテーテルチューブの前記遠位端で前記内腔の1つ内に係合し、
それにより、前記コネクタの前記近位端を前記カテーテルチューブの前記遠位端に接続し、
前記多内腔カテーテルチューブは、内部を通る2つの内腔を有し、前記コネクタは、2つの対応するプロングを有し、
前記内腔および前記プロングは、その間にはめ合い係合が得られるように対応するD字形断面を有する、多内腔カテーテル。 - 前記コネクタは、前記コネクタ内に少なくとも部分的に延在する略長手方向のキャビティをさらに有し、
前記連結部分は、前記キャビティ内に位置する、請求項19に記載の多内腔カテーテル。 - 前記コネクタは、前記コネクタの前記遠位端から前記コネクタ内へ少なくとも部分的に延在する略長手方向のキャビティを有し、
前記複数のプロングの各々を略長手方向の通路が通り、
それにより、前記通路の各々は、前記コネクタの前記遠位端において前記略長手方向のキャビティと流体連通状態にあり、
それにより、前記コネクタの前記遠位端から前記コネクタを通って前記カテーテルチューブ内の前記複数の内腔につづく複数の略平行な流路を与える、請求項19に記載の多内腔カテーテル。 - 前記プロングの各々は、対応する内腔の内壁に、前記カテーテルチューブの前記遠位端において接着される、請求項19に記載の多内腔カテーテル。
- 前記プロングの各々に平滑でない外形を設け、
それにより、前記プロングの各々と、対応する内腔の内壁との間に、前記カテーテルチューブの前記遠位端において摩擦嵌合をもたらす、請求項19に記載の多内腔カテーテル。
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US10/231,577 US6921396B1 (en) | 2002-08-30 | 2002-08-30 | Multi-lumen catheter with integrated connector |
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JP2005537061A JP2005537061A (ja) | 2005-12-08 |
JP4530854B2 true JP4530854B2 (ja) | 2010-08-25 |
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JP2004531633A Expired - Fee Related JP4530854B2 (ja) | 2002-08-30 | 2003-08-28 | 一体型コネクタを備える多内腔カテーテル |
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US (2) | US6921396B1 (ja) |
EP (1) | EP1539272B1 (ja) |
JP (1) | JP4530854B2 (ja) |
CN (1) | CN100455326C (ja) |
AU (1) | AU2003260123B2 (ja) |
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-
2002
- 2002-08-30 US US10/231,577 patent/US6921396B1/en not_active Expired - Lifetime
-
2003
- 2003-08-28 EP EP03791898.4A patent/EP1539272B1/en not_active Expired - Lifetime
- 2003-08-28 WO PCT/US2003/026967 patent/WO2004020016A2/en active Application Filing
- 2003-08-28 JP JP2004531633A patent/JP4530854B2/ja not_active Expired - Fee Related
- 2003-08-28 MX MXPA05002274A patent/MXPA05002274A/es active IP Right Grant
- 2003-08-28 AU AU2003260123A patent/AU2003260123B2/en not_active Ceased
- 2003-08-28 CA CA2496809A patent/CA2496809C/en not_active Expired - Lifetime
- 2003-08-28 CN CNB038241943A patent/CN100455326C/zh not_active Expired - Lifetime
-
2005
- 2005-04-29 US US11/117,892 patent/US20050187535A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
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WO2004020016A3 (en) | 2004-05-06 |
WO2004020016A2 (en) | 2004-03-11 |
CN1688352A (zh) | 2005-10-26 |
CA2496809C (en) | 2012-09-04 |
AU2003260123A1 (en) | 2004-03-19 |
CA2496809A1 (en) | 2004-03-11 |
AU2003260123B2 (en) | 2008-02-21 |
CN100455326C (zh) | 2009-01-28 |
EP1539272B1 (en) | 2019-06-12 |
EP1539272A2 (en) | 2005-06-15 |
MXPA05002274A (es) | 2005-06-08 |
US6921396B1 (en) | 2005-07-26 |
US20050187535A1 (en) | 2005-08-25 |
EP1539272A4 (en) | 2011-09-28 |
JP2005537061A (ja) | 2005-12-08 |
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