JP2019000233A - 医療用デバイス - Google Patents
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- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
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- A—HUMAN NECESSITIES
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- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
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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
- A61M25/0067—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
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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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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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
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
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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
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
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- A—HUMAN NECESSITIES
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- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
- A61M2025/0096—Catheter tip comprising a tool being laterally outward extensions or tools, e.g. hooks or fibres
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- A—HUMAN NECESSITIES
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- A61M25/00—Catheters; Hollow probes
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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
- A61M25/09—Guide wires
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- Heart & Thoracic Surgery (AREA)
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Abstract
Description
第1実施形態では、本発明の医療用デバイスの一例として、血管内に発生した血栓又は塞栓などの異物を除去するために用いる血管内異物除去デバイスを例示して説明する。
図1は、第1実施形態に係る医療用デバイス1の全体構成を説明するために示す図である。図2は、第1実施形態に係る医療用デバイス1の構成部品を組み合わせた状態を示す図である。
なお、図1及び図2において、発明の理解を容易にするため、医療用デバイス1を構成する各部材の長さや太さ、肉厚等を誇張して図示している。
これに対し、第1実施形態に係る医療用デバイス1によれば、シース部10内に異物捕捉用カテーテル20及び異物除去用カテーテル30が既に装填された状態で使用するため、インサーターが不要となる。その結果、製品全体としての部品点数の削減やコスト低廉化に寄与することができる。
第2実施形態では、本発明の医療用デバイスの一例として、血管内壁からの止血に用いる血管内止血用デバイスを例示して説明する。
図4は、第3実施形態に係る医療用デバイス3の全体構成を説明するために示す図である。図5は、第3実施形態に係る医療用デバイス3を説明するために示す図である。図5(a)はシース部50の先端58が閉じた状態を示す図であり、図5(b)はシース部50の先端58が開いた状態を示す図である。なお、図4において、図1に示す部材と同一の部材については、同一の符号を付している。
10,50・・・シース部
12,52・・・シースチューブ
14,24,34,44,54,64・・・液体充填ポート
16,56・・・第1バルブ(第1脱落防止機構)
18・・・開口端
20・・・異物捕捉用カテーテル
22,32,42,62・・・カテーテルチューブ
26・・・第2バルブ(第2脱落防止機構)
28・・・捕捉部
28a・・・網部
28b・・・膜部
30,60・・・異物除去用カテーテル(処置用カテーテル)
33,43,63・・・操作部
35,45,65・・・操作レバー
36,46,66・・・コネクタ
37,67・・・除去部
38,48・・・先端チップ
40・・・血管内止血用カテーテル(処置用カテーテル)
47・・・止血部
47a・・・弾性変形部
47b・・・止血膜
58・・・(シースチューブの)先端
Claims (8)
- 体内内腔に処置を施すための医療用デバイスであって、
管状のシース部と、
前記シース部内を移動可能に構成され、前記体内内腔の異物を捕捉するための捕捉部を有する異物捕捉用カテーテルと、
前記異物捕捉用カテーテル内を移動可能に構成され、前記体内内腔に処置を施すための処置部を有する処置用カテーテルとを備え、
前記処置用カテーテルを前記異物捕捉用カテーテル内に装填し、さらに当該異物捕捉用カテーテルを前記シース部内に装填した状態で、前記体内内腔に挿入可能に構成されている医療用デバイス。 - 請求項1に記載の医療用デバイスにおいて、
前記処置用カテーテルは、前記処置用カテーテルの先端部に配設された先端チップを有し、
前記先端チップは、
前記処置用カテーテルを前記異物捕捉用カテーテル内に装填し、さらに当該異物捕捉用カテーテルを前記シース部内に装填した状態で、前記シース部の開口端を封止可能に構成されており、かつ、
前記シース部に対して前記処置用カテーテルを相対的に遠位側に移動させることにより、前記シース部の開口端の封止を解除可能に構成されている医療用デバイス。 - 請求項1に記載の医療用デバイスにおいて、
前記シース部の先端は、前記処置用カテーテルを前記異物捕捉用カテーテル内に装填し、さらに当該異物捕捉用カテーテルを前記シース部内に装填した状態で、前記シース部の先端を封止可能に構成されており、かつ、
前記シース部に対して前記異物捕捉用カテーテル又は前記処置用カテーテルを相対的に遠位側に移動させることにより、前記シース部の開口端の封止を解除可能に構成されている医療用デバイス。 - 請求項1〜3のいずれか一項に記載の医療用デバイスにおいて、
前記シース部及び前記異物捕捉用カテーテルのうち少なくとも一方には、前記シース部から前記異物捕捉用カテーテルが脱落するのを防止する第1脱落防止機構が設けられている医療用デバイス。 - 請求項1〜4のいずれか一項に記載の医療用デバイスにおいて、
前記異物捕捉用カテーテル及び前記処置用カテーテルのうち少なくとも一方には、前記異物捕捉用カテーテルから前記処置用カテーテルが脱落するのを防止する第2脱落防止機構が設けられている医療用デバイス。 - 請求項1〜5のいずれか一項に記載の医療用デバイスにおいて、
前記処置用カテーテルは、
前記体内内腔の異物を除去するための異物除去用カテーテルである医療用デバイス。 - 請求項1〜5のいずれか一項に記載の医療用デバイスにおいて、
前記処置用カテーテルは、
前記体内内腔の異物を溶解するための異物溶解用カテーテルである医療用デバイス。 - 請求項1〜5のいずれか一項に記載の医療用デバイスにおいて、
前記処置用カテーテルは、
血管内壁からの止血に用いる血管内止血用カテーテルである医療用デバイス。
Priority Applications (2)
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JP2017116193A JP6996873B2 (ja) | 2017-06-13 | 2017-06-13 | 医療用デバイス |
US16/005,893 US11298504B2 (en) | 2017-06-13 | 2018-06-12 | Medical device |
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JP2017116193A JP6996873B2 (ja) | 2017-06-13 | 2017-06-13 | 医療用デバイス |
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JP2019000233A true JP2019000233A (ja) | 2019-01-10 |
JP2019000233A5 JP2019000233A5 (ja) | 2020-07-09 |
JP6996873B2 JP6996873B2 (ja) | 2022-01-17 |
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JP7379769B2 (ja) * | 2018-02-23 | 2023-11-15 | Sbカワスミ株式会社 | 回収機構及び拡張用カテーテル |
CN110292700B (zh) * | 2019-06-04 | 2021-06-15 | 兖矿新里程总医院 | 一种胃管引导器 |
RU2725552C1 (ru) * | 2019-12-30 | 2020-07-02 | Заза Александрович Кавтеладзе | Набор для предотвращения дистальной эмболии при проведении эндоваскулярных вмешательств (варианты) и способ предотвращения дистальной эмболии при проведении эндоваскулярных вмешательств с использованием указанного набора (варианты) |
WO2023052149A1 (en) * | 2021-09-30 | 2023-04-06 | Medtronic Ireland Manufacturing Unlimited Company | Catheter locking assembly |
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