JP6550463B2 - 圧力感知のための医療装置及びその製造方法 - Google Patents
圧力感知のための医療装置及びその製造方法 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
- A61B5/02154—Measuring pressure in heart or blood vessels by means inserted into the body by optical transmission
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0261—Measuring blood flow using optical means, e.g. infrared light
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
- A61B2090/306—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using optical fibres
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/02028—Determining haemodynamic parameters not otherwise provided for, e.g. cardiac contractility or left ventricular ejection fraction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
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- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Veterinary Medicine (AREA)
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Description
上記実施形態の代わりに、またはこれに加えて、シール部材はセンタリング部材の近位端に固定される。
上記実施形態の代わりに、またはこれに加えて、円錐部はシャフトの内面に対してくさび状である。
上記実施形態の代わりに、またはこれに加えて、円筒部はシャフトの内面に接触する。
上記実施形態の代わりに、またはこれに加えて、光ファイバは接着剤でシャフトの内面に固定される。
上記実施形態の代わりに、またはこれに加えて、シール部材はシャフトにおけるコーティングの遠位移動を制限するように設計される。
上記実施形態の代わりに、またはこれに加えて、シャフトの遠位領域は遠位内径を有し、シャフトの近位領域は近位内径を有し、遠位内径は近位内径よりも大きい。
上記実施形態の代わりに、またはこれに加えて、医療装置は、冠血流予備量比(FFR)測定のためのガイドワイヤである。
上記実施形態の代わりに、またはこれに加えて、シール部材は管状部材の内面に接触する円筒部を含む。
明示されているか否かにかかわらず、すべての数値は本明細書において、「約」という用語で修飾されているものとみなす。「約」という用語は一般に、当業者が記載値と同等である(すなわち、同じ機能または結果が得られる)と考える数値の範囲を指す。多くの場合、「約」という用語は、最も近い有効数字に丸められた数を含み得る。
本明細書および添付の特許請求の範囲で用いられるように、別段の明確な指示がない限り、単数形は複数の対象を含む。本明細書および添付の特許請求の範囲で用いられるように、別段の明確な指示がない限り、「または(or)」という用語は一般に、「AおよびBの少なくとも一方(and/or)」を含む意味で用いられる。
Claims (11)
- 血圧を測定するための医療装置であって、前記医療装置は、
近位領域および遠位領域を有する細長いシャフトと、
前記近位領域に沿って延在する光ファイバとを含み、
前記光ファイバは前記シャフトの内面に固定され、
前記光ファイバに結合されるとともに、前記遠位領域に沿って配置された光圧力センサと、
前記光ファイバに取り付けられるとともに、前記シャフトの内面に係合する表面を有するシール部材と、
前記光ファイバに結合されるとともに、前記光圧力センサに隣接して配置されたセンタリング部材とを含み、
前記シール部材は前記センタリング部材の近位端に固定され、
前記シャフトの遠位領域は遠位内径を有し、前記シャフトの近位領域は近位内径を有し、前記遠位内径は前記近位内径よりも大きく、
前記シール部材は前記近位領域と前記遠位領域との間の移行領域に配置される
医療装置。 - 請求項1に記載の医療装置において、前記シャフトの内面に係合する前記表面は、前記シール部材の円錐部に沿って配置される医療装置。
- 請求項2に記載の医療装置において、前記円錐部は前記シャフトの内面に対してくさび状である医療装置。
- 請求項1に記載の医療装置において、前記シャフトの内面に係合する前記表面は、前記シール部材の円筒部に沿って配置される医療装置。
- 請求項4に記載の医療装置において、前記円筒部は前記シャフトの内面に接触する医療装置。
- 請求項1〜5のいずれか一項に記載の医療装置において、前記シャフトは外側にコーティングを含む医療装置。
- 請求項6に記載の医療装置において、前記シール部材は前記シャフトにおける前記コーティングの遠位移動を制限するように設計される医療装置。
- 請求項1〜7のいずれか一項に記載の医療装置において、前記シャフトはその中
に形成された複数のスロットを有する医療装置。 - 請求項1〜8のいずれか一項に記載の医療装置において、前記医療装置は冠血流予備量比(FFR)測定のためのガイドワイヤである医療装置。
- 医療装置を製造する方法であって、前記方法は、
管状部材内に光ファイバを配置する工程を含み、前記工程において、
前記管状部材の外面に沿ってコーティングが配置され、
前記管状部材は近位領域および遠位領域を有し、
前記遠位領域は遠位内径を有し、
前記近位領域は前記遠位内径よりも小さい近位内径を有し、
前記遠位領域、前記近位領域、またはその両方はその中に形成された複数のスロットを有し、
前記光ファイバに結合された光圧力センサは前記管状部材の遠位領域内に配置される工程と、
前記管状部材内において前記近位領域と前記遠位領域との間の移行領域にシール部材を配置する工程とを含み、前記シール部材は前記管状部材の内面に係合する表面を有し、
前記シール部材は前記管状部材における前記コーティングの遠位移動を制限するように設計される方法。 - 請求項10に記載の方法において、前記シール部材は円錐部を有し、前記管状部材内にシール部材を配置する工程は、前記シール部材の前記円錐部を前記管状部材の内面に対してくさび状とすることを含む方法。
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PCT/US2015/064040 WO2016090272A1 (en) | 2014-12-05 | 2015-12-04 | Pressure sensing guidewires |
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EP (1) | EP3226748B1 (ja) |
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