JP7241157B2 - 医療用長尺体および医療器具セット - Google Patents
医療用長尺体および医療器具セット Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
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- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
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- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
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- 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
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
- A61M31/005—Devices for introducing or retaining media, e.g. remedies, in cavities of the body for contrast media
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
- A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
- A61B2017/3425—Access ports, e.g. toroid shape introducers for instruments or hands for internal organs, e.g. heart ports
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- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0059—Catheters; Hollow probes characterised by structural features having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M2025/0183—Rapid exchange or monorail 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0662—Guide tubes
- A61M2025/0681—Systems with catheter and outer tubing, e.g. sheath, sleeve or guide 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
- 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
-
- 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
-
- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
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- 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
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0662—Guide tubes
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- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
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Description
を防止できる。
図1は、本実施形態に係る医療器具セット(カテーテルセット)10を示す。
図1に示すように、カテーテル200は、ガイドワイヤ、医療デバイス、医療用長尺体100等を挿入可能な内腔211が形成されたカテーテル本体部210と、カテーテル本体部210の基端部に配置されたハブ220と、を有している。
図1および図2に示すように、医療用長尺体100は、線状体からなるシャフト部110と、シャフト部110の先端側に形成された先端部材120と、シャフト部110の基端側に配置され、術者等の手指により把持可能な把持部180と、を有している。
。
に挿入される医療デバイスと接触しやすいチューブ部材150の基端部において、開口部154に介入して、確実に内層130と融着される。なお、スリット部153と開口部154は実際には部材が存在しない孔(空間)であるが、図6では、両者の位置関係を明瞭に示すために、スリット部153および開口部154を白塗りで図示している。
100 医療用長尺体、
110 シャフト部、
120 先端部材、
120A 第1領域、
120B 第2領域、
120C 第3領域、
125 内腔、
130 内層、
140 外層、
143 傾斜部、
145 基端開口部、
150 チューブ部材、
153 スリット部、
154 開口部、
155 傾斜領域、
160 補強層、
161 補強部材、
163 間隙部、
200 カテーテル、
210 カテーテル本体部、
211 内腔、
300 ガイドワイヤ、
N 病変部。
Claims (7)
- 線状体からなるシャフト部と、
前記シャフト部の先端側に形成され、かつ、内腔を有する先端部材と、を有し、
前記先端部材は、
樹脂材料からなる内層および外層を有する第1領域と、前記内層、前記外層、および前記内層と前記外層との間に配置された金属材料からなるチューブ部材を有する第2領域と、を有し、
前記第2領域を形成する前記チューブ部材は、前記シャフト部と一体的に構成されており、
前記先端部材は、前記第1領域から前記第2領域に亘って、前記内層と前記外層の間に形成される金属材料を含む補強層を有し、
前記補強層は、前記第2領域において前記チューブ部材の内側に配置されており、
前記第1領域の外径は、前記第2領域の外径よりも小さく形成されており、
前記チューブ部材から前記シャフト部へ移行する前記第2領域の基端部には、基端側に開口した基端開口部が形成されており、前記基端開口部は医療デバイスを前記先端部材の内部に挿通させる内腔を形成している、医療用長尺体 - 前記先端部材の外層は、前記第2領域の先端から先端側に向かって外径が小さくなる傾斜部を有する、ことを特徴とする請求項1に記載の医療用長尺体。
- 前記傾斜部よりも先端側の前記第1領域の外層の肉厚は、前記先端部材の軸方向と直交する断面において、前記第2領域の外層の肉厚と略同一である、ことを特徴とする請求項2に記載の医療用長尺体。
- 前記補強層は、金属材料から形成された補強部材と、前記補強部材に形成されるとともに前記内層および前記外層を繋ぐ間隙部と、を有し、
前記チューブ部材は、スリット部を有し、
前記外層は、前記第2領域において、前記補強層の間隙部と前記チューブ部材のスリット部とにより形成される隙間に介入して、前記内層と融着している、ことを特徴とする請求項1~3のいずれか1項に記載の医療用長尺体。 - 前記スリット部は、前記チューブ部材に螺旋状に形成されており、
前記スリット部のピッチは、前記チューブ部材の基端から先端に向かって小さくなっており、
前記チューブ部材は、前記スリット部が形成された領域よりも基端側に複数の開口部を有する、ことを特徴とする請求項4に記載の医療用長尺体。 - 前記先端部材は、前記第2領域よりも基端側に第3領域を有し、
前記チューブ部材は、前記第3領域において、前記シャフト部に向かって傾斜する傾斜領域を有し、
前記第3領域には、前記チューブ部材よりも柔軟な材料で形成されるとともに前記傾斜領域の先端側から基端側に向かって外径が大きくなる基端開口部が形成されている、ことを特徴とする請求項1~5のいずれか1項に記載の医療用長尺体。 - 請求項6に記載の医療用長尺体と、
前記医療用長尺体が挿入可能な内腔を有するカテーテル本体部を有するカテーテルと、を備え、
前記医療用長尺体の前記第3領域の前記基端開口部の最大外径は、前記カテーテル本体部の内径と略同一または大きい、ことを特徴とする医療器具セット。
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PCT/JP2018/012430 WO2018181310A1 (ja) | 2017-03-31 | 2018-03-27 | 医療用長尺体および医療器具セット |
JP2019509886A JP7000417B2 (ja) | 2017-03-31 | 2018-03-27 | 医療用長尺体および医療器具セット |
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US20200398025A1 (en) * | 2019-06-24 | 2020-12-24 | Orbusneich Medical Pte. Ltd. | Multi-lumen catheter |
WO2021153232A1 (ja) * | 2020-01-28 | 2021-08-05 | ニプロ株式会社 | カテーテル用先端チップ |
JP2023042609A (ja) * | 2020-02-28 | 2023-03-28 | テルモ株式会社 | 貫通用カテーテル |
JPWO2023062983A1 (ja) * | 2021-10-14 | 2023-04-20 |
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US11134982B2 (en) | 2021-10-05 |
JP2022037184A (ja) | 2022-03-08 |
WO2018181310A1 (ja) | 2018-10-04 |
US20240260992A1 (en) | 2024-08-08 |
JPWO2018181310A1 (ja) | 2020-02-06 |
JP7000417B2 (ja) | 2022-02-10 |
US11986210B2 (en) | 2024-05-21 |
US20210298786A1 (en) | 2021-09-30 |
US20200038056A1 (en) | 2020-02-06 |
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