WO2021065873A1 - 医療デバイス - Google Patents

医療デバイス Download PDF

Info

Publication number
WO2021065873A1
WO2021065873A1 PCT/JP2020/036815 JP2020036815W WO2021065873A1 WO 2021065873 A1 WO2021065873 A1 WO 2021065873A1 JP 2020036815 W JP2020036815 W JP 2020036815W WO 2021065873 A1 WO2021065873 A1 WO 2021065873A1
Authority
WO
WIPO (PCT)
Prior art keywords
medical device
pipe
connecting portion
outer pipe
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/036815
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
高橋侑右
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Terumo Corp
Original Assignee
Terumo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Terumo Corp filed Critical Terumo Corp
Priority to EP20873202.4A priority Critical patent/EP4035721B1/en
Priority to JP2021551292A priority patent/JP7543293B2/ja
Publication of WO2021065873A1 publication Critical patent/WO2021065873A1/ja
Priority to US17/704,544 priority patent/US20220211432A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00243—Type of minimally invasive operation cardiac
    • A61B2017/00247—Making holes in the wall of the heart, e.g. laser Myocardial revascularization
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
    • A61B2017/1139—Side-to-side connections, e.g. shunt or X-connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/0016—Energy applicators arranged in a two- or three dimensional array
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • A61B2018/00267—Expandable means emitting energy, e.g. by elements carried thereon having a basket shaped structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345—Vascular system
    • A61B2018/00351—Heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345—Vascular system
    • A61B2018/00351—Heart
    • A61B2018/0038—Foramen ovale
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/142—Electrodes having a specific shape at least partly surrounding the target, e.g. concave, curved or in the form of a cave
    • 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
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • 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
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material

Definitions

  • Patent Document 1 describes a device for incising and expanding a blood vessel narrowed by arteriosclerosis.
  • an outer shaft is fixed to the base ends of a plurality of expansion portions extending in the axial direction at the tip portion of the device, and an inner shaft penetrating the outer shaft is fixed to the tip portions of the plurality of expansion portions. Therefore, by pulling the inner shaft toward the proximal end side with respect to the outer shaft, a compressive force acts on the expansion portion, and the expansion portion expands so as to bend outward in the radial direction.
  • the flexible portion is outside the range where the outer pipe and the inner pipe overlap, so that the flexible portion can be flexibly bent. Therefore, in the elongated form, the medical device has improved flexibility and improved passability in a tubular member such as a sheath or in a living lumen. Further, in the accommodation form, the flexible portion is in a range where the outer pipe and the inner pipe overlap. Therefore, the medical device can be less likely to bend in the containment form.
  • the medical device 10 expands the through-hole Hh formed in the atrial septum HA of the patient's heart H, and maintains the further expanded through-hole Hh in its size. It is configured to allow maintenance procedures.
  • the medical device 10 of the present embodiment has a long shaft portion 20, an extension body 21 provided at the tip end portion of the shaft portion 20, and a traction for expanding the extension body 21. It has a shaft 33 and an operating portion 23 provided at a base end portion of the shaft portion 20.
  • the extension 21 is provided with an energy transfer element 22 for performing the above-mentioned maintenance measures.
  • the tip end portion of the wire rod portion 50 extends from the tip end portion of the inner pipe 60 toward the base end side.
  • the wire rod portion 50 is inclined so as to increase in the radial direction from both end portions in the axial direction toward the central portion. Further, the wire rod portion 50 has a valley-shaped holding portion 51 in the radial direction of the expansion body 21 at the central portion in the axial direction.
  • the wire rod portion 50 forming the expansion body 21 has, for example, a flat plate shape cut out from a cylinder.
  • the wire rod forming the expansion body 21 can have a thickness of 50 to 500 ⁇ m and a width of 0.3 to 2.0 mm.
  • the wire rod forming the expansion body 21 may have dimensions outside this range.
  • the shape of the wire rod portion 50 is not limited, and may have, for example, a circular cross-sectional shape or a cross-sectional shape other than that.
  • the outer tube 70 has one first engaging portion 73, but may have two or more first engaging portions 73 at different positions in the circumferential direction.
  • the expansion body 21 becomes a reference form developed in the radial direction.
  • the open end 72 is located on the distal end side of the first connecting portion 58 and on the proximal end side of the second connecting portion 59.
  • the distance L1 from the first connecting portion 58 to the opening end 72 is the distance from the first connecting portion 58 to the second connecting portion 59. It exceeds 0% of L2, preferably 30 to 80%, more preferably 40 to 70%, and even more preferably 50 to 60%. If the distance L1 is too short, the range in which the outer pipe 70 and the inner pipe 60 overlap between the first connecting portion 58 and the second connecting portion 59 becomes short, so that the effect of making the shaft portion difficult to bend in the reference form is reduced.
  • the tip member 35, the inner tube 60, and the outer tube 70 may be formed of, for example, a superelastic alloy such as a nickel-titanium alloy or a copper-zinc alloy, a metal material such as stainless steel, or a resin material having a relatively high rigidity. it can.
  • a superelastic alloy such as a nickel-titanium alloy or a copper-zinc alloy
  • a metal material such as stainless steel
  • resin material having a relatively high rigidity it can.
  • This treatment method is performed on patients suffering from heart failure (left heart failure). More specifically, as shown in FIG. 4, for patients suffering from chronic heart failure in which the blood pressure of the left atrium HLa increases due to the enlargement of the myocardium of the left ventricle of the heart H and the increase in stiffness (hardness). This is the method of treatment performed.
  • the entire expansion body 21 expands by its own elastic force and is restored to the original reference form or a form close to the reference form.
  • the atrial septum HA is arranged between the proximal end side sandwiching portion 52 and the distal end side sandwiching portion 53.
  • the expansion body 21 may return to a shape close to the reference form without completely returning to the reference form. In this state, the expansion body 21 is not covered by the storage sheath 30 and is not receiving any force from the tow shaft 33.
  • This state of the extension 21 can also be defined as included in the reference form.
  • the second engaging portion 61 protruding from the outer peripheral surface of the inner pipe 60 is housed in the slit-shaped first engaging portion 73 formed in the outer pipe 70.
  • the first engaging portion 73 and the second engaging portion 61 are engaged, and the inner pipe 60 becomes non-rotatable with respect to the outer pipe 70. Therefore, it is possible to prevent the expansion body 21 from twisting. Therefore, the expanding body 21 spreads uniformly with a uniform expanding force, and the expanding force can be uniformly applied to the through hole Hh of the atrial septum HA.
  • the operator operates the operation unit 23 while holding the atrial septum HA by the pinching portion 51, and moves the traction shaft 33 to the proximal end side.
  • the expansion body 21 that receives the compressive force in the axial direction becomes an expansion form that expands in the radial direction from the reference form.
  • the dilated body 21 is in an expanded form, so that the proximal end side holding portion 52 and the distal end side sandwiching portion 53 approach each other, and the atrial septum HA is sandwiched between the proximal end side sandwiching portion 52 and the distal end side sandwiching portion 53.
  • the sandwiching portion 51 further expands while sandwiching the atrial septum HA, and pushes the through hole Hh in the radial direction.
  • the expansion body 21 can be uniformly expanded with a uniform expansion force, and the through hole Hh can be uniformly expanded in the radial direction.
  • the surgeon performs maintenance measures to maintain the size of the through hole Hh.
  • energy is applied to the edge of the through hole Hh through the energy transfer element 22, so that the edge of the through hole Hh is cauterized (heated cautery) by the energy.
  • the biological tissue near the edge of the through hole Hh is cauterized through the energy transfer element 22, a degenerated portion in which the biological tissue is denatured is formed near the edge. Since the biological tissue in the degenerated portion loses its elasticity, the through hole Hh can maintain its shape when expanded by the expansion body 21.
  • the medical device 10 is a medical device having a long shaft portion 20 and an expansion body 21 provided at the tip portion of the shaft portion 20 and expandable and contractible in the radial direction.
  • the shaft portion 20 has an outer pipe 70 and an inner pipe 60 that can slide inside the outer pipe 70 in the axial direction, and the expansion body 21 is a first connecting portion that is connected to the outer pipe 70.
  • the outer pipe 70 has an opening end 72 in which an opening 71 through which the inner pipe 60 can enter and exit is formed, and has an extension body 21.
  • the opening end 72 is located between the first connecting portion 58 and the second connecting portion 59, and a part of the inner pipe 60 is pulled out from the opening 71 when the reference form is changed to the contracted form. ..
  • the medical device 10 shortens the range in which the outer tube 70 and the inner tube 60 overlap between the first connecting portion 58 and the second connecting portion 59. ..
  • the medical device 10 has improved flexibility between the first connecting portion 58 and the second connecting portion 59, and has a tubular member such as a delivery sheath 80 or a biological cavity. Passability within is improved. Further, in the medical device 10, in the reference form in which the expansion body 21 is expanded, the range in which the outer tube 70 and the inner tube 60 overlap between the first connecting portion 58 and the second connecting portion 59 becomes longer. Therefore, in the medical device 10, the shaft portion 20 becomes difficult to bend between the first connecting portion 58 and the second connecting portion 59.
  • the expansion body 21 can be expanded in the radial direction by approaching the first connecting portion 58 and the second connecting portion 59 from the reference form, and when the reference form is changed to the expansion form, the expansion body 21 can be expanded.
  • a part of the inner pipe 60 is housed inside the outer pipe 70 through the opening 71.
  • the medical device 10 can form the dilated body 21 in an expanded form having a uniform and desirable shape in the circumferential direction, so that a decrease in the expanding force can be suppressed and the living tissue can be uniformly spread in the radial direction. ..
  • the outer pipe 70 has a first engaging portion 73
  • the inner pipe 60 has a second engaging portion 61
  • the first engaging portion 73 and the second engaging portion 61 have at least a reference form.
  • the present invention also provides a treatment method.
  • This treatment method is a treatment method in which a through hole Hh opened in a living tissue is expanded by using a medical device 10, and the medical device 10 is formed on a long shaft portion 20 and a tip portion of the shaft portion 20.
  • the shaft portion 20 has an outer pipe 70 and an inner pipe 60 that is slidable in the axial direction inside the outer pipe 70.
  • the expansion body 21 has a first connecting portion 58 connected to the outer pipe 70 and a second connecting portion 59 connected to the inner pipe 60, and the outer pipe 70 is the inner pipe.
  • the expansion body 21 has an opening end 72 in which an opening 71 through which 60 can enter and exit is formed, and the expansion body 21 has a reference form that extends in the radial direction, and the first connecting portion 58 and the second connecting portion 58 that are wider than the reference form. It is possible to have a contraction form in which the connecting portion 59 is separated in the radial direction, and the expansion body 21 is inserted into the through hole Hh which is transported in the living body and opened in the living body tissue as the contracting form. Then, the expansion body 21 is used as the reference form inside the through hole Hh, and the through hole Hh is expanded by the expansion body 21.
  • the shaft portion 20 becomes difficult to bend between the first connecting portion 58 and the second connecting portion 59. Therefore, in this treatment method, since the dilated body 21 can be maintained in an appropriate shape in the reference form, a decrease in the dilating force can be suppressed, and the living tissue can be uniformly spread in the radial direction.
  • the biological lumen to which the medical device 10 is applied is not limited to blood vessels, and may be, for example, a vessel, a ureter, a bile duct, an oviduct, a hepatic duct, a lymphatic vessel, or the like.
  • the medical device 10 does not have to include the extension body 21.
  • the tip of the tow shaft 33 is connected to the inner pipe 60.
  • the medical device 10 is arranged at a position where at least a part including the flexible portion 62 of the inner tube 60 overlaps with the outer tube 70, as shown in FIG. 10 (B). It will be a containment form.
  • the medical device 10 has an extended form in which the flexible portion 62 of the inner tube 60 is arranged at a position where it does not overlap with the outer tube 70, as shown in FIG. 10 (A). Become.
  • the flexible portion 62 has a flexible portion 62 having a lower bending rigidity than the portion, and in the accommodation form, the flexible portion 62 is located in a range where the outer pipe 70 and the inner pipe 60 overlap, and in the extended form, the flexible portion 62 is the outer pipe 70 and the outer pipe 70.
  • the inner pipe 60 is located in a range different from the overlapping range.
  • the flexible portion 62 can be flexibly bent because the outer pipe 70 and the inner pipe 60 are outside the overlapping range. Therefore, in the extended form, the medical device 10 has improved flexibility between the first connecting portion 58 and the second connecting portion 59, and has a tubular member such as a delivery sheath 80 or a passability in a biological lumen. improves.
  • the inner pipe 60 may be connected to the second connecting portion 59 so as to be slightly movable.
  • the outer pipe 70 may be connected to the first connecting portion 58 so as to be slightly movable.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Otolaryngology (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
PCT/JP2020/036815 2019-09-30 2020-09-29 医療デバイス Ceased WO2021065873A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20873202.4A EP4035721B1 (en) 2019-09-30 2020-09-29 Medical device
JP2021551292A JP7543293B2 (ja) 2019-09-30 2020-09-29 医療デバイス
US17/704,544 US20220211432A1 (en) 2019-09-30 2022-03-25 Medical device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019179477 2019-09-30
JP2019-179477 2019-09-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/704,544 Continuation US20220211432A1 (en) 2019-09-30 2022-03-25 Medical device

Publications (1)

Publication Number Publication Date
WO2021065873A1 true WO2021065873A1 (ja) 2021-04-08

Family

ID=75336413

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/036815 Ceased WO2021065873A1 (ja) 2019-09-30 2020-09-29 医療デバイス

Country Status (4)

Country Link
US (1) US20220211432A1 (https=)
EP (1) EP4035721B1 (https=)
JP (1) JP7543293B2 (https=)
WO (1) WO2021065873A1 (https=)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023282335A1 (ja) * 2021-07-09 2023-01-12 テルモ株式会社 医療デバイスおよびシャント形成方法
WO2023281887A1 (ja) * 2021-07-09 2023-01-12 テルモ株式会社 医療デバイスおよびシャント形成方法
US11622695B1 (en) 2020-04-23 2023-04-11 Shifamed Holdings, Llc Intracardiac sensors with switchable configurations and associated systems and methods
US11633194B2 (en) 2020-11-12 2023-04-25 Shifamed Holdings, Llc Adjustable implantable devices and associated methods
US11801369B2 (en) 2020-08-25 2023-10-31 Shifamed Holdings, Llc Adjustable interatrial shunts and associated systems and methods
US12090290B2 (en) 2021-03-09 2024-09-17 Shifamed Holdings, Llc Shape memory actuators for adjustable shunting systems, and associated systems and methods
US12151071B2 (en) 2019-09-09 2024-11-26 Shifamed Holdings, Llc Adjustable shunts and associated systems and methods
US12213817B2 (en) 2020-04-23 2025-02-04 Shifamed Holdings, Llc Systems and methods for radiographic monitoring of shunts
WO2025070032A1 (ja) * 2023-09-26 2025-04-03 テルモ株式会社 医療デバイス
US12440656B2 (en) 2020-04-23 2025-10-14 Shifamed Holdings, Llc Power management for interatrial shunts and associated systems and methods
US12533500B2 (en) 2019-06-18 2026-01-27 Shifamed Holdings, Llc Adjustable interatrial shunts and associated systems and methods
US12544010B2 (en) 2020-10-28 2026-02-10 Shifamed Holdings, Llc Systems and methods for electrical monitoring of implantable devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210177508A1 (en) * 2019-12-12 2021-06-17 Avenu Medical, Inc. Devices and methods for the creation of an inter-atrial shunt for the treatment of congestive heart failure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005270394A (ja) * 2004-03-25 2005-10-06 Piolax Medical Device:Kk 管状器官治療具の拡張補助具
US20100312338A1 (en) * 2009-06-05 2010-12-09 Entrigue Surgical, Inc. Systems, devices and methods for providing therapy to an anatomical structure
WO2015186626A1 (ja) * 2014-06-03 2015-12-10 テルモ株式会社 拡張デバイス
WO2018016529A1 (ja) * 2016-07-20 2018-01-25 テルモ株式会社 医療用長尺体
WO2019009254A1 (ja) * 2017-07-04 2019-01-10 テルモ株式会社 医療デバイス、および処置方法
WO2019181634A1 (ja) * 2018-03-20 2019-09-26 テルモ株式会社 医療デバイス
JP2019179477A (ja) 2018-03-30 2019-10-17 本田技研工業株式会社 情報提供装置、情報提供方法、およびプログラム

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345927A (en) * 1990-03-02 1994-09-13 Bonutti Peter M Arthroscopic retractors
US6423058B1 (en) * 1998-02-19 2002-07-23 Curon Medical, Inc. Assemblies to visualize and treat sphincters and adjoining tissue regions
AU2006262447A1 (en) * 2005-06-20 2007-01-04 Medtronic Ablation Frontiers Llc Ablation catheter
CA2764494A1 (en) * 2011-01-21 2012-07-21 Kardium Inc. Enhanced medical device for use in bodily cavities, for example an atrium
WO2015061034A1 (en) * 2013-10-24 2015-04-30 St. Jude Medical, Cardiology Division, Inc. Flexible catheter shaft and method of manufacture
CN109310863A (zh) * 2016-03-09 2019-02-05 卡迪诺米克公司 心脏收缩性神经刺激系统和方法
WO2019113051A1 (en) * 2017-12-05 2019-06-13 Boston Scientific Scimed, Inc. Tissue retraction system for performing minimally invasive procedures

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005270394A (ja) * 2004-03-25 2005-10-06 Piolax Medical Device:Kk 管状器官治療具の拡張補助具
US20100312338A1 (en) * 2009-06-05 2010-12-09 Entrigue Surgical, Inc. Systems, devices and methods for providing therapy to an anatomical structure
WO2015186626A1 (ja) * 2014-06-03 2015-12-10 テルモ株式会社 拡張デバイス
WO2018016529A1 (ja) * 2016-07-20 2018-01-25 テルモ株式会社 医療用長尺体
WO2019009254A1 (ja) * 2017-07-04 2019-01-10 テルモ株式会社 医療デバイス、および処置方法
WO2019181634A1 (ja) * 2018-03-20 2019-09-26 テルモ株式会社 医療デバイス
JP2019179477A (ja) 2018-03-30 2019-10-17 本田技研工業株式会社 情報提供装置、情報提供方法、およびプログラム

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12533500B2 (en) 2019-06-18 2026-01-27 Shifamed Holdings, Llc Adjustable interatrial shunts and associated systems and methods
US12151071B2 (en) 2019-09-09 2024-11-26 Shifamed Holdings, Llc Adjustable shunts and associated systems and methods
US12343487B2 (en) 2019-09-09 2025-07-01 Shifamed Holdings, Llc Adjustable shunts and associated systems and methods
US12440656B2 (en) 2020-04-23 2025-10-14 Shifamed Holdings, Llc Power management for interatrial shunts and associated systems and methods
US11622695B1 (en) 2020-04-23 2023-04-11 Shifamed Holdings, Llc Intracardiac sensors with switchable configurations and associated systems and methods
US12213817B2 (en) 2020-04-23 2025-02-04 Shifamed Holdings, Llc Systems and methods for radiographic monitoring of shunts
US11801369B2 (en) 2020-08-25 2023-10-31 Shifamed Holdings, Llc Adjustable interatrial shunts and associated systems and methods
US12491347B2 (en) 2020-08-25 2025-12-09 Shifamed Holdings, Llc Adjustable interatrial shunts and associated systems and methods
US12544010B2 (en) 2020-10-28 2026-02-10 Shifamed Holdings, Llc Systems and methods for electrical monitoring of implantable devices
US11633194B2 (en) 2020-11-12 2023-04-25 Shifamed Holdings, Llc Adjustable implantable devices and associated methods
US11857197B2 (en) 2020-11-12 2024-01-02 Shifamed Holdings, Llc Adjustable implantable devices and associated methods
US12090290B2 (en) 2021-03-09 2024-09-17 Shifamed Holdings, Llc Shape memory actuators for adjustable shunting systems, and associated systems and methods
WO2023282335A1 (ja) * 2021-07-09 2023-01-12 テルモ株式会社 医療デバイスおよびシャント形成方法
WO2023281887A1 (ja) * 2021-07-09 2023-01-12 テルモ株式会社 医療デバイスおよびシャント形成方法
WO2025070032A1 (ja) * 2023-09-26 2025-04-03 テルモ株式会社 医療デバイス

Also Published As

Publication number Publication date
JP7543293B2 (ja) 2024-09-02
US20220211432A1 (en) 2022-07-07
EP4035721B1 (en) 2025-08-20
EP4035721A4 (en) 2022-11-23
JPWO2021065873A1 (https=) 2021-04-08
EP4035721A1 (en) 2022-08-03

Similar Documents

Publication Publication Date Title
WO2021065873A1 (ja) 医療デバイス
US12274487B2 (en) Medical device
US11950836B2 (en) Medical device and treatment method
US12533180B2 (en) Medical device
US20220211430A1 (en) Medical Device
US20220211431A1 (en) Medical device
WO2021065912A1 (ja) 医療デバイス
US20240122645A1 (en) Medical device and method for forming shunt
WO2022071168A1 (ja) 医療デバイスおよびシャント形成方法
US20230404655A1 (en) Medical device
WO2022071179A1 (ja) 医療デバイスおよびシャント形成方法
US20230218341A1 (en) Medical device
JP2022042115A (ja) 医療デバイスおよび方法
US20230233225A1 (en) Medical device and method of controlling same
JP2022038122A (ja) 医療デバイスおよびシャント形成方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20873202

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021551292

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020873202

Country of ref document: EP

Effective date: 20220427

WWG Wipo information: grant in national office

Ref document number: 2020873202

Country of ref document: EP